10-Q

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

☒ Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

for the quarterly period ended March 31, 2026

or

☐ Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

for the transition period from                    to                   

Commission file number   001-14431 

American States Water Company

(Exact Name of Registrant as Specified in Its Charter)

California			95-4676679
(State or Other Jurisdiction of Incorporation or Organization)			(IRS Employer Identification No.)
630 E. Foothill Blvd	San Dimas	CA	91773-1212
(Address of Principal Executive Offices)			(Zip Code)

(909) 394-3600

(Registrant’s Telephone Number, Including Area Code)

Not Applicable

(Former Name, Former Address and Former Fiscal Year, if Changed Since Last Report)

Securities registered pursuant to Section 12(b) of the Securities Exchange Act of 1934:

Title of each class	Trading symbol	Name of each exchange on which registered
Common shares	AWR	New York Stock Exchange

Commission file number   001-12008 

Golden State Water Company

(Exact Name of Registrant as Specified in Its Charter)

California			95-1243678
(State or Other Jurisdiction of Incorporation or Organization)			(IRS Employer Identification No.)
630 E. Foothill Blvd	San Dimas	CA	91773-1212
(Address of Principal Executive Offices)			(Zip Code)

(909) 394-3600

(Registrant’s Telephone Number, Including Area Code)

Not Applicable

(Former Name, Former Address and Former Fiscal Year, if Changed Since Last Report)

Securities registered pursuant to Section 12(b) of the Securities Exchange Act of 1934:

Title of each class	Trading symbol	Name of each exchange on which registered
N/A	N/A	N/A

Indicate by check mark whether Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

American States Water Company	Yes	x	No	¨
Golden State Water Company	Yes	x	No	¨

Indicate by check mark whether Registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or such shorter period that the Registrant was required to submit such files).

American States Water Company	Yes	x	No	¨
Golden State Water Company	Yes	x	No	¨

 Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):

American States Water Company

Large accelerated filer x Accelerated filer ¨ Non-accelerated filer ¨ Smaller reporting company ☐ Emerging growth company ☐

Golden State Water Company

Large accelerated filer ¨ Accelerated filer ¨ Non-accelerated filer x Smaller reporting company ☐ Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.¨

 Indicate by check mark whether Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act)

American States Water Company	Yes	☐	No	x
Golden State Water Company	Yes	☐	No	x

As of May 5, 2026, the number of common shares, no par value (“Common Shares”) outstanding of American States Water Company was 39,192,653. As of May 5, 2026, all of the 178.3836 outstanding shares of common stock, no par value, of Golden State Water Company were owned by American States Water Company.

Golden State Water Company meets the conditions set forth in General Instruction (H)(1)(a) and (b) of Form 10-Q and is therefore filing this Form, in part, with the reduced disclosure format for Golden State Water Company.

AMERICAN STATES WATER COMPANY

and

GOLDEN STATE WATER COMPANY

FORM 10-Q

INDEX

Glossary of Terms
Information Regarding Forward-Looking Statements
Part I	Financial Information	3
Item 1:	Financial Statements	1
	Consolidated Balance Sheets of American States Water Company as of March 31, 2026 and December 31, 2025	2
	Consolidated Statements of Income of American States Water Company for the Three Months Ended March 31, 2026 and 2025	4
	Consolidated Statements of Changes in Common Shareholders’ Equity of American States Water Company for the Three Months Ended March 31, 2026 and 2025	5
	Consolidated Statements of Cash Flows of American States Water Company for the Three Months Ended March 31, 2026 and 2025	6
	Balance Sheets of Golden State Water Company as of March 31, 2026 and December 31, 2025	7
	Statements of Income of Golden State Water Company for the Three Months Ended March 31, 2026 and 2025	9
	Statements of Changes in Common Shareholder's Equity of Golden State Water Company for the Three Months Ended March 31, 2026 and 2025	10
	Statements of Cash Flows of Golden State Water Company for the Three Months Ended March 31, 2026 and 2025	11
	Notes to Consolidated Financial Statements	12
Item 2:	Management’s Discussion and Analysis of Financial Condition and Results of Operations	23
Item 3:	Quantitative and Qualitative Disclosures About Market Risk	41
Item 4:	Controls and Procedures	42
Part II	Other Information
Item 1:	Legal Proceedings	43
Item 1A:	Risk Factors	43
Item 2:	Unregistered Sales of Equity Securities, Use of Proceeds and Issuer Purchases of Equity Securities	43
Item 3:	Defaults Upon Senior Securities	43
Item 4:	Mine Safety Disclosure	43
Item 5:	Other Information	44
Item 6:	Exhibits	45
	Signatures	46

GLOSSARY OF TERMS

The following terms and acronyms used in this Form 10-Q are defined below:

Term or Acronym	Definition
AFUDC	Allowance for Funds Used During Construction
ASUS	American States Utility Services, Inc.
ATM	At-The-Market Offering Program
AWR	American States Water Company
BRRBA	Base Revenue Requirement Balancing Account
BSUS	Bay State Utility Services LLC
BVES	Bear Valley Electric Service, Inc.
Cal Advocates	Public Advocates Office of the California Public Utilities Commission
COC	Cost of Capital
CPUC	California Public Utilities Commission
DDW	Division of Drinking Water
ECUS	Emerald Coast Utility Services, Inc.
EPA	Economic Price Adjustment
EPS	Earnings Per Share
ETR	Effective Tax Rate
Exchange Act	Securities Exchange Act of 1934, as amended
FBWS	Fort Bliss Water Services Company
FRUS	Fort Riley Utility Services, Inc.
GAAP	Generally Accepted Accounting Principles in the United States of America
GSWC	Golden State Water Company
ICBA	Incremental Cost Balancing Account
M-WRAM	Monterey-style Water Revenue Adjustment Mechanism
MCBA	Modified Cost Balancing Account
ODUS	Old Dominion Utility Services, Inc.
ONUS	Old North Utility Services, Inc.
PFAS	Per- and Polyfluoroalkyl Substances
PRUS	Patuxent River Utility Services LLC
PSUS	Palmetto State Utility Services, Inc.
REA	Request for Equitable Adjustment
Registrant	American States Water Company and Golden State Water Company
SEC	Securities and Exchange Commission
SERP	Supplemental Executive Retirement Plan
SWRCB	State Water Resources Control Board
TUS	Terrapin Utility Services, Inc.
U.S.	United States
U.S. EPA	U.S. Environmental Protection Agency
WMP	Wildfire Mitigation Plan
WRAM	Water Revenue Adjustment Mechanism

INFORMATION REGARDING FORWARD-LOOKING STATEMENTS

This Form 10-Q contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements reflect the current views of our senior management with respect to future events and our financial performance. These statements include forward-looking statements with respect to our business and industry in general. Statements that include the words “expect,” “intend,” “believe,” “estimate,” “may,” “can,” “will,” “likely,” “should,” “could,” “anticipate,” “plan” and similar statements of a future or forward-looking nature identify forward-looking statements for purposes of the federal securities laws or otherwise. Forward-looking statements address matters that involve risks and uncertainties. Accordingly, there are or will be important factors that could cause our actual results to differ materially from those indicated in these statements. We believe that these factors include, but are not limited to, the following:

•the impact of laws, regulations and policies of regulatory agencies or the U.S. government;

•the ability of GSWC and BVES to recover their respective costs through regulated rates, including increased costs related to aging infrastructure, climate change risks, water quality compliance, renewable energy and greenhouse gas regulations, inflation, tariffs, supply chain disruptions and interest rate increases, while facing customer affordability concerns;

•our contracts for providing services on military bases are provided under long-term, fixed-price contracts subject to annual economic price adjustments and may be suspended or terminated by the U.S. government at any time;

•risks associated with our military base contracts including potential disputes with the U.S. government over contract performance, increases in costs related to the expansion of our military base contract activities, and the performance of subcontractors supporting these operations;

•ASUS is subject to potential government audits or investigations of its business practices and compliance with government procurement statutes and regulations that could result in fines and penalties;

•GSWC and BVES are subject to potential audit and investigations by the CPUC for failure to comply with regulations applicable to public utilities, including failure to comply with state and federal water quality requirements, wildfire mitigation plans, renewable energy legislation, greenhouse gas regulations and other climate related regulations that could result in fines and penalties;

•competition with other companies in bidding on providing utility services on military bases which involves estimating costs and potential profits that may not be realized;

•the impact of water quality and wastewater quality regulations, including the impact of groundwater contamination and rising costs associated with treatment and mitigation of groundwater due to contamination and compliance with regulation;

•asset or business acquisitions may not yield the anticipated benefits;

•the impact of climate change and extreme weather events, including droughts, storms, high wind events, wildfires, flash flooding and other natural disasters, and the effects they could have on our water and electric operations and their ability to continue providing safe and uninterrupted services during these extreme events;

•our assets at our regulated utilities are subject to condemnation by municipalities and other governmental subdivisions;

•increases in the costs of obtaining and complying with the terms of franchise agreements;

•the costs and impacts of adverse publicity, legal and administrative proceedings, settlements, investigations or claims, any of which may lead to increased regulatory oversight, sanctions or reputational harm;

•our ability to control operation and maintenance costs within the amounts that have been approved in rates or estimated in our military base contracts;

•the outbreak of pandemics and other events, such as terrorist activities, that may cause regionwide, statewide, nationwide or even global disruption, which could impact our businesses, operations, cash flows or financial results;

•the inherent risk of property damage and injury to employees or the public arising from electricity generation, transmission and distribution, the handling of hazardous materials and equipment, and proximity to public utility construction and maintenance operations, for which liability may arise regardless of any finding of negligence or fault;

•risks of losses not covered by insurance or recoverable in rates, including the risk of inadequate insurance coverage to cover significant losses due to a wildfire as insurance coverage becomes more expensive or unavailable on reasonable terms;

•the adequacy and cost of water supplies due to fluctuations of weather, climate change, and other uncontrollable factors;

•the impact that water conservation efforts may have on GSWC’s operations and costs incurred;

•risks related to inaccurate financing or accounting estimates and changes in accounting, public utility, environmental and tax laws and regulations affecting our business;

•changes in fair value of investments and other assets;

•incomplete or delayed reimbursement from the U.S. government and delays in obtaining decisions from the CPUC on regulated public utility rates that can adversely impact our financial condition and liquidity;

•physical security of our critical assets, personnel and data critical to our business, employees, customers and vendors, and the financial losses or other liabilities associated with failing to maintain safe work sites, equipment, or facilities;

•our ability to successfully maintain and/or upgrade our information technology systems as we are increasingly dependent on the continuous and reliable operation of these systems;

•cybersecurity incidents or information and operational technology outages, including those caused by third-party systems supporting our operations, could disrupt operations and critical technology systems, impair our ability to deliver services, and/or result in the loss or breach of critical and confidential information;

•our ability to attract, retain, train, motivate, develop, and transition key employees;

•failure of our employees to maintain required certifications and licenses or to complete required compliance training;

•changes in interest rates and our ability to borrow funds and access bank and capital markets on reasonable terms, including our ability to finance significant capital expenditures required by our operations, which are increasing;

•the impact of inflation, tariffs imposed and supply chain disruptions on our operational costs and costs of capital that may not be recovered in rates for our regulated utilities and through economic price adjustments for our military bases;

•delays in receiving payment or delays in price adjustments due to canceled or delayed appropriations specific to our projects, reductions in government spending for the military generally or military-base operations specifically or other delays in Congress approving appropriations;

•appropriations and the timing of payment may be influenced by, among other things, the state of the economy, competing political priorities, budget constraints, the timing and amount of tax receipts, government shutdowns and the overall level of government expenditures;

•results of financing efforts, including the ability to obtain financing on favorable terms, which can be affected by various factors, including credit ratings, interest rate fluctuations, compliance with debt covenants and conditions, delays in receiving general rate case decisions from the CPUC, and general market and economic conditions;

•actions by credit rating agencies to downgrade AWR or GSWC’s credit ratings or to place those ratings on negative outlook;

•volatility in the price of our Common Shares;

•declines in the market prices of equity and fixed-income securities and resulting cash funding requirements for defined benefit pension plans and other post-retirement benefit plans;

•reliance on cash flow from our subsidiaries to meet financial obligations and to pay dividends on our Common Shares;

•the geographic concentration of our operations in California and changes in electricity and natural gas prices in the state; and

•other risks and uncertainties described under the heading “Item 1A. Risk Factors” in our Annual Report on Form 10-K filed with the SEC.

Although we believe that the expectations reflected in these forward-looking statements are reasonable based on our current knowledge of our business and operations, we cannot guarantee future results, levels of activity, performance or achievements. If one or more of these or other risks or uncertainties materialize, or if our underlying assumptions prove to be incorrect, actual results may differ materially from what we anticipate. Any forward-looking statements you read in this Form 10-Q and the information incorporated herein by reference reflect our views as of their respective dates and are subject to these and other risks, uncertainties and assumptions relating to our operations, results of operations, growth strategy and liquidity. You should not place undue reliance on these forward-looking statements and you should carefully consider all of the factors identified in this Form 10-Q and the information incorporated herein by reference that could cause actual results to differ. Forward-looking statements speak only as of the date they are made and except as required by law, Registrant expressly disclaims an obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

PART I

Item 1. Financial Statements

General

 The basic financial statements included herein have been prepared by Registrant, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission.

 Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted pursuant to such rules and regulations. In the opinion of management, all adjustments consisting of normal recurring items and estimates necessary for a fair statement of results for the interim period have been made.

 It is suggested that these financial statements be read in conjunction with the financial statements and notes thereto in the latest Annual Report on Form 10-K of American States Water Company and its wholly owned subsidiary, Golden State Water Company. 

Filing Format

American States Water Company (“AWR”) is the parent company of Golden State Water Company (“GSWC”), Bear Valley Electric Service, Inc. (“BVES”) and American States Utility Services, Inc. and its subsidiaries (“ASUS”).

This quarterly report on Form 10-Q is a combined report being filed by two separate Registrants: AWR and GSWC. For more information, please see Note 1 of the Notes to Consolidated Financial Statements and the heading titled “General” in “Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations.” References in this report to “Registrant” are to AWR and GSWC, collectively, unless otherwise specified. GSWC makes no representations as to the information contained in this report other than with respect to itself.

1

AMERICAN STATES WATER COMPANY

CONSOLIDATED BALANCE SHEETS

ASSETS

(Unaudited)

(in thousands)	March 31, 2026		December 31, 2025
Property, Plant and Equipment
Regulated utility plant, at cost	$	2,941,280	$	2,899,564
Non-utility property, at cost	51,678		50,422
Total	2,992,958		2,949,986
Less - accumulated depreciation	(663,265)		(653,667)
Net property, plant and equipment	2,329,693		2,296,319
Other property and investments	57,257		58,664
Current Assets
Cash and cash equivalents	22,155		18,824
Accounts receivable — customers (less allowance for doubtful accounts of $3,637 in 2026 and $3,642 in 2025)	39,741		38,321
Unbilled receivable	32,161		26,621
Receivable from the U.S. government (Note 2)	31,890		46,400
Other receivables (less allowance for doubtful accounts of $131 in 2026 and 2025)	4,246		6,127
Materials and supplies	16,647		16,406
Regulatory assets — current	27,597		39,396
Prepayments and other current assets	14,252		7,551
Contract assets (Note 2)	32,667		31,428
Total current assets	221,356		231,074
Other Assets
Unbilled revenue — receivable from the U.S. government (Note 2)	961		1,258
Receivable from the U.S. government (Note 2)	25,538		27,660
Contract assets (Note 2)	248		79
Operating lease right-of-use assets	7,244		6,093
Regulatory assets	28,037		30,073
Other	63,806		63,872
Total other assets	125,834		129,035
Total Assets	$	2,734,140	$	2,715,092

The accompanying notes are an integral part of these consolidated financial statements.

2

AMERICAN STATES WATER COMPANY

CONSOLIDATED BALANCE SHEETS

CAPITALIZATION AND LIABILITIES

(Unaudited)

(in thousands, except number of shares)	March 31, 2026		December 31, 2025
Capitalization
Common shares, no par value
Authorized: 60,000,000 shares
Outstanding: 39,192,653 shares in 2026 and 39,082,470 shares in 2025	$	433,238	$	425,153
Retained earnings	630,607		620,428
Total common shareholders’ equity	1,063,845		1,045,581
Long-term debt	782,739		782,700
Total capitalization	1,846,584		1,828,281
Current Liabilities
Long-term debt — current	8,214		8,209
Accounts payable	79,406		86,021
Income taxes payable	11,718		1,169
Accrued other taxes	9,745		12,871
Accrued employee expenses	19,874		16,193
Accrued interest	11,499		9,545
Contract liabilities (Note 2)	11,618		11,735
Operating lease liabilities	2,260		2,062
Purchase power contract derivative at fair value (Note 5)	15,708		15,503
Other	11,555		11,304
Total current liabilities	181,597		174,612
Other Credits
Notes payable to banks	132,000		141,000
Advances for construction	81,656		77,976
Contributions in aid of construction – net	180,615		179,277
Deferred income taxes	195,288		194,121
Regulatory liabilities	55,542		60,205
Unamortized investment tax credits	856		873
Accrued pension and other postretirement benefits	36,807		36,557
Operating lease liabilities	5,342		4,406
Other	17,853		17,784
Total other credits	705,959		712,199
Commitments and Contingencies (Note 9)
Total Capitalization and Liabilities	$	2,734,140	$	2,715,092

The accompanying notes are an integral part of these consolidated financial statements.

3

AMERICAN STATES WATER COMPANY

CONSOLIDATED STATEMENTS OF INCOME

FOR THE THREE MONTHS ENDED

MARCH 31, 2026 AND 2025

(Unaudited)

	Three Months Ended March 31,
(in thousands, except per share amounts)	2026		2025
Operating Revenues
Water	$	113,110	$	102,003
Electric	18,657		15,002
Contracted services	37,424		31,008
Total operating revenues	169,191		148,013
Operating Expenses
Water purchased	21,360		16,308
Power purchased for pumping	3,297		3,149
Groundwater production assessment	5,527		5,679
Power purchased for resale	4,792		6,068
Supply cost balancing accounts	(318)		(1,716)
Other operation	11,268		10,490
Administrative and general	28,154		26,875
Depreciation and amortization	12,684		11,582
Maintenance	5,700		4,147
Property and other taxes	8,023		6,952
ASUS construction	17,333		12,933
Total operating expenses	117,820		102,467
Operating Income	51,371		45,546
Other Income and Expenses
Interest expense	(12,107)		(12,082)
Interest income	976		2,013
Other, net	(420)		(171)
Total other income and expenses, net	(11,551)		(10,240)
Income before income tax expense	39,820		35,306
Income tax expense	9,872		8,462
Net Income	$	29,948	$	26,844
Weighted Average Number of Common Shares Outstanding	39,111		38,253
Basic Earnings Per Common Share	$	0.76	$	0.70
Weighted Average Number of Diluted Shares	39,210		38,354
Fully Diluted Earnings Per Common Share	$	0.76	$	0.70
Dividends Paid Per Common Share	$	0.5040	$	0.4655

The accompanying notes are an integral part of these consolidated financial statements.

4

AMERICAN STATES WATER COMPANY

CONSOLIDATED STATEMENTS OF CHANGES

IN COMMON SHAREHOLDERS’ EQUITY

(Unaudited)

	Three Months Ended March 31, 2026
	Common Shares
	Number
	of			Retained
(in thousands)	Shares	Amount		Earnings		Total
Balances at December 31, 2025	39,082	$	425,153	$	620,428	$	1,045,581
Add:
Net income				29,948		29,948
Issuance of Common Shares from an at-the-market program, net of issuance costs	84	6,185				6,185
Issuances of Common Shares under stock-based compensation plans	26	—				—
Stock-based compensation, net of taxes paid from shares withheld from employees related to net share settlements (Note 4)		1,830				1,830
Dividend equivalent rights on stock-based awards not paid in cash		70				70
Deduct:
Dividends on Common Shares				19,699		19,699
Dividend equivalent rights on stock-based awards not paid in cash				70		70
Balances at March 31, 2026	39,192	$	433,238	$	630,607	$	1,063,845

	Three Months Ended March 31, 2025
	Common Shares
	Number
	of			Retained
(in thousands)	Shares	Amount		Earnings		Total
Balances at December 31, 2024	38,151	$	355,143	$	564,908	$	920,051
Add:
Net income				26,844		26,844
Issuance of Common Shares from an at-the-market program, net of issuance costs	335	25,648				25,648
Issuances of Common Shares under stock-based compensation plans	23	—				—
Stock-based compensation, net of taxes paid from shares withheld from employees related to net share settlements (Note 4)		1,626				1,626
Dividend equivalent rights on stock-based awards not paid in cash		63				63
Deduct:
Dividends on Common Shares				17,762		17,762
Dividend equivalent rights on stock-based awards not paid in cash				63		63
Balances at March 31, 2025	38,509	$	382,480	$	573,927	$	956,407

The accompanying notes are an integral part of these consolidated financial statements.

5

AMERICAN STATES WATER COMPANY

CONSOLIDATED STATEMENTS OF CASH FLOWS

FOR THE THREE MONTHS ENDED MARCH 31, 2026 AND 2025

(Unaudited)

	Three Months Ended   March 31,
(in thousands)	2026		2025
Cash Flows From Operating Activities:
Net income	$	29,948	$	26,844
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	12,990		11,844
Provision for doubtful accounts	495		581
Deferred income taxes and investment tax credits	(720)		2,153
Stock-based compensation expense	2,953		2,723
(Gain) loss on investments held in a trust	1,272		586
Other — net	254		233
Changes in assets and liabilities:
Accounts receivable — customers	(1,915)		3,105
Unbilled receivable	(5,243)		(6,576)
Other receivables	1,881		2,626
Receivables from the U.S. government	16,632		5,186
Materials and supplies	(241)		(376)
Prepayments and other assets	(6,126)		(5,975)
Contract assets	(1,408)		(2,900)
Regulatory assets/liabilities	11,802		1,143
Accounts payable	(3,306)		(2,387)
Income taxes receivable/payable	10,549		6,310
Contract liabilities	(117)		2,085
Accrued pension and other postretirement benefits	(193)		434
Other liabilities	2,131		(2,578)
Net cash provided (used)	71,638		45,061
Cash Flows From Investing Activities:
Capital expenditures	(49,051)		(67,565)
Other investing activities	195		194
Net cash provided (used)	(48,856)		(67,371)
Cash Flows From Financing Activities:
Proceeds from issuance of Common Shares, net of issuance costs	6,230		25,715
Receipt of advances for and contributions in aid of construction	5,660		1,973
Refunds on advances for construction	(1,147)		(1,435)
Repayments of long-term debt	(124)		(119)
Proceeds from the issuance of long-term debt, net of issuance costs	—		49,807
Net changes in notes payable to banks	(9,000)		(40,000)
Dividends paid	(19,699)		(17,762)
Other financing activities	(1,371)		(1,301)
Net cash provided (used)	(19,451)		16,878
Net change in cash and cash equivalents	3,331		(5,432)
Cash and cash equivalents, beginning of period	18,824		26,661
Cash and cash equivalents, end of period	$	22,155	$	21,229
Non-cash transactions:
Accrued payables for investment in utility plant	$	36,009	$	31,099
Property installed by developers and conveyed	$	1,806	$	1,958

The accompanying notes are an integral part of these consolidated financial statements.

6

GOLDEN STATE WATER COMPANY

BALANCE SHEETS

ASSETS

(Unaudited)

(in thousands)	March 31, 2026		December 31, 2025
Utility Plant
Utility plant, at cost	$	2,687,052	$	2,648,213
Less - accumulated depreciation	(572,750)		(564,529)
Net utility plant	2,114,302		2,083,684
Other Property and Investments	54,425		55,829
Current Assets
Cash and cash equivalents	5,562		9,964
Accounts receivable — customers (less allowance for doubtful accounts of $3,288 in 2026 and $3,233 in 2025)	33,715		33,212
Unbilled receivable	22,073		20,607
Other receivables (less allowance for doubtful accounts of $131 in 2026 and 2025)	1,737		2,767
Receivable from affiliate	1,382		1,443
Income taxes receivable from Parent	—		2,555
Materials and supplies	9,213		9,127
Regulatory assets — current	13,754		23,211
Prepayments and other current assets	9,882		6,365
Total current assets	97,318		109,251
Other Assets
Operating lease right-of-use assets	7,031		5,856
Other	61,234		61,242
Total other assets	68,265		67,098
Total Assets	$	2,334,310	$	2,315,862

The accompanying notes are an integral part of these financial statements.

7

GOLDEN STATE WATER COMPANY

BALANCE SHEETS

CAPITALIZATION AND LIABILITIES

(Unaudited)

(in thousands, except number of shares)	March 31, 2026		December 31, 2025
Capitalization
Common Shares, no par value:
Authorized: 1,000 shares
Outstanding: 178.3836 shares in 2026 and 178.3836 in 2025	$	480,430	$	478,494
Retained earnings	457,163		455,243
Total common shareholder’s equity	937,593		933,737
Long-term debt	698,082		698,060
Total capitalization	1,635,675		1,631,797
Current Liabilities
Long-term debt — current	8,214		8,209
Accounts payable	63,166		67,426
Income taxes payable to Parent	5,425		—
Accrued other taxes	6,932		10,322
Accrued employee expenses	15,412		12,847
Accrued interest	10,109		7,738
Operating lease liabilities	2,163		1,967
Other	10,824		10,762
Total current liabilities	122,245		119,271
Other Credits
Notes payable to banks	22,000		13,000
Advances for construction	81,636		77,956
Contributions in aid of construction — net	180,615		179,277
Deferred income taxes	178,317		177,291
Regulatory liabilities	55,542		60,205
Unamortized investment tax credits	856		873
Accrued pension and other postretirement benefits	36,161		35,948
Operating lease liabilities	5,230		4,268
Other	16,033		15,976
Total other credits	576,390		564,794
Commitments and Contingencies (Note 9)
Total Capitalization and Liabilities	$	2,334,310	$	2,315,862

The accompanying notes are an integral part of these financial statements.

8

GOLDEN STATE WATER COMPANY

STATEMENTS OF INCOME

FOR THE THREE MONTHS ENDED

MARCH 31, 2026 AND 2025

(Unaudited)

	Three Months Ended March 31,
(in thousands)	2026		2025
Operating Revenues
Water	$	113,110	$	102,003
Total operating revenues	113,110		102,003
Operating Expenses
Water purchased	21,360		16,308
Power purchased for pumping	3,297		3,149
Groundwater production assessment	5,527		5,679
Supply cost balancing accounts	77		287
Other operation	7,144		6,675
Administrative and general	17,754		17,657
Depreciation and amortization	10,659		9,824
Maintenance	2,074		2,004
Property and other taxes	6,520		5,624
Total operating expenses	74,412		67,207
Operating Income	38,698		34,796
Other Income and Expenses
Interest expense	(9,392)		(9,328)
Interest income	478		1,272
Other, net	(537)		(320)
Total other income and expenses, net	(9,451)		(8,376)
Income before income tax expense	29,247		26,420
Income tax expense	7,564		6,514
Net Income	$	21,683	$	19,906

The accompanying notes are an integral part of these consolidated financial statements.

9

GOLDEN STATE WATER COMPANY

STATEMENTS OF CHANGES

IN COMMON SHAREHOLDER’S EQUITY

(Unaudited)

	Three Months Ended March 31, 2026
	Common Shares
	Number
	of			Retained
(in thousands, except number of shares)	Shares	Amount		Earnings		Total
Balances at December 31, 2025	178.3836	$	478,494	$	455,243	$	933,737
Add:
Net income				21,683		21,683
Stock-based compensation, net of taxes paid from shares withheld from employees related to net share settlements (Note 4)		1,873				1,873
Dividend equivalent rights on stock-based awards not paid in cash		63				63
Deduct:
Dividends on Common Shares				19,700		19,700
Dividend equivalent rights on stock-based awards not paid in cash				63		63
Balances at March 31, 2026	178.3836	$	480,430	$	457,163	$	937,593

	Three Months Ended March 31, 2025
	Common Shares
	Number
	of			Retained
(in thousands, except number of shares)	Shares	Amount		Earnings		Total
Balances at December 31, 2024	173.7586	$	413,797	$	392,036	$	805,833
Add:
Net income				19,906		19,906
Stock-based compensation, net of taxes paid from shares withheld from employees related to net share settlements (Note 4)		1,634				1,634
Dividend equivalent rights on stock-based awards not paid in cash		57				57
Deduct:
Dividend equivalent rights on stock-based awards not paid in cash				57		57
Balances at March 31, 2025	173.7586	$	415,488	$	411,885	$	827,373

The accompanying notes are an integral part of these financial statements.

10

GOLDEN STATE WATER COMPANY

STATEMENTS OF CASH FLOWS

FOR THE THREE MONTHS ENDED MARCH 31, 2026 AND 2025

(Unaudited)

	Three Months Ended   March 31,
(in thousands)	2026		2025
Cash Flows From Operating Activities:
Net income	$	21,683	$	19,906
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	10,943		10,067
Provision for doubtful accounts	445		412
Deferred income taxes and investment tax credits	(459)		1,322
Stock-based compensation expense	2,852		2,604
(Gain) loss on investments held in a trust	1,272		586
Other — net	160		170
Changes in assets and liabilities:
Accounts receivable — customers	(948)		3,950
Unbilled receivable	(1,466)		996
Other receivables	1,030		532
Materials and supplies	(86)		96
Prepayments and other assets	(2,954)		(3,800)
Regulatory assets/liabilities	6,817		2,767
Accounts payable	(2,919)		(3,273)
Receivable/payable from/to affiliate	74		(765)
Income taxes receivable/payable from/to Parent	7,980		5,193
Accrued pension and other postretirement benefits	(230)		400
Other liabilities	991		(4,297)
Net cash provided (used)	45,185		36,866
Cash Flows From Investing Activities:
Capital expenditures	(42,244)		(57,858)
Other investing activities	195		182
Net cash provided (used)	(42,049)		(57,676)
Cash Flows From Financing Activities:
Receipt of advances for and contributions in aid of construction	5,660		1,973
Refunds on advances for construction	(1,147)		(1,435)
Repayments of long-term debt	(124)		(119)
Net changes in notes payable to banks	9,000		19,000
Dividends paid	(19,700)		—
Other financing activities	(1,227)		(1,174)
Net cash provided (used)	(7,538)		18,245
Net change in cash and cash equivalents	(4,402)		(2,565)
Cash and cash equivalents, beginning of period	9,964		11,338
Cash and cash equivalents, end of period	$	5,562	$	8,773
Non-cash transactions:
Accrued payables for investment in utility plant	$	34,970	$	29,355
Property installed by developers and conveyed	$	1,806	$	1,958

The accompanying notes are an integral part of these financial statements.

11

AMERICAN STATES WATER COMPANY AND SUBSIDIARIES

AND

GOLDEN STATE WATER COMPANY

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Note 1 — Summary of Significant Accounting Policies

Nature of Operations: American States Water Company (“AWR”) is the parent company of Golden State Water Company (“GSWC”), Bear Valley Electric Service Inc. (“BVES”), and American States Utility Services, Inc. (“ASUS”) (and its subsidiaries, Fort Bliss Water Services Company (“FBWS”), Old Dominion Utility Services, Inc. (“ODUS”), Terrapin Utility Services, Inc. (“TUS”), Palmetto State Utility Services, Inc. (“PSUS”), Old North Utility Services, Inc. (“ONUS”), Emerald Coast Utility Services, Inc. (“ECUS”), Fort Riley Utility Services, Inc. (“FRUS”), Bay State Utility Services LLC (“BSUS”), and Patuxent River Utility Services LLC (“PRUS”)). AWR and its subsidiaries may be collectively referred to as “the Company.” AWR, through its wholly owned subsidiaries, serves over one million people in ten states.

 GSWC and BVES are both California public utilities. GSWC engages in the purchase, production, distribution and sale of water throughout California serving approximately 265,100 customer connections. BVES distributes electricity in several San Bernardino County mountain communities in California serving approximately 24,900 customer connections. The California Public Utilities Commission (“CPUC”) regulates GSWC’s and BVES’s businesses in matters including properties, rates, services, facilities, and transactions between GSWC, BVES, and their affiliates.

ASUS, through its wholly owned subsidiaries, operates, maintains and performs construction activities (including renewal and replacement capital work) on water and/or wastewater systems at various U.S. military bases pursuant to initial 50-year firm fixed-price contracts with the U.S. government and one 15-year contract with the U.S. government. These contracts are subject to annual economic price adjustments and modifications for changes in circumstances, changes in laws and regulations, and additions to the contract value for new construction of facilities at the military bases. ASUS also from time to time performs construction services on military bases as a subcontractor.

There is no direct regulatory oversight by the CPUC over AWR or the operations, rates or services provided by ASUS or any of its wholly owned subsidiaries.

Basis of Presentation: The consolidated financial statements and notes hereto are presented in a combined report filed by two separate Registrants: AWR and GSWC. References in this report to “Registrant” are to AWR and GSWC, collectively, unless otherwise specified. AWR owns all of the outstanding common shares of GSWC, BVES and ASUS. ASUS owns all of the outstanding equity of its subsidiaries. The consolidated financial statements of AWR include the accounts of AWR and its subsidiaries. These financial statements are prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”). Intercompany transactions and balances have been eliminated in AWR’s consolidated financial statements.

The consolidated financial statements included herein have been prepared by Registrant, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). The December 31, 2025 condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by GAAP. The preparation of the consolidated financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities, at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates. In the opinion of management, all adjustments consisting of normal, recurring items, and estimates necessary for a fair statement of the results for the interim periods have been made. It is suggested that these consolidated financial statements be read in conjunction with the consolidated financial statements and the notes thereto included in the Form 10-K for the year ended December 31, 2025 filed with the SEC.

Related Party and Intercompany Transactions: GSWC, BVES and ASUS provide and/or receive various support services to and from their parent, AWR, and among themselves. GSWC allocates certain corporate office administrative and general costs to its affiliates, BVES and ASUS, using allocation factors approved by the CPUC. GSWC allocated corporate office administrative and general costs to BVES of $1.1 million and $1.0 million during the three month periods ended March 31, 2026 and 2025, respectively. GSWC also allocated corporate office administrative and general costs to ASUS of approximately $1.7 million and $1.6 million during the three month periods ended March 31, 2026 and 2025, respectively.

When necessary, AWR will make capital contributions to its regulated utilities in order to maintain the CPUC-authorized capital structure.

12

Recent Accounting Pronouncements Not Yet Adopted:

In November 2024, the FASB issued Accounting Standards Update 2024-03, (Disaggregation of Income Statement Expenses) requiring public entities to disclose additional information about specific expense categories in the notes to the financial statements on an interim and annual basis. The guidance will be effective for fiscal years beginning after December 15, 2026, and for interim periods beginning after December 15, 2027, with early adoption permitted. Registrant is currently evaluating the impact of adopting this standard.

Note 2 — Revenues

Most of Registrant’s revenues are derived from contracts with customers, including tariff-based revenues from its regulated utilities at GSWC and BVES. ASUS’s initial firm fixed-price long-term contracts with the U.S. government are considered service concession arrangements under ASC 853, Service Concession Arrangements. ASUS’s military base contracts consist primarily of 50-year contracts and one 15-year contract with the U.S. government. Accordingly, the services under these contracts are accounted for under Topic 606—Revenue from Contracts with Customers, and the water and/or wastewater systems are not recorded as Property, Plant and Equipment on Registrant’s balance sheets.

Although GSWC and BVES have a diversified customer base of residential, commercial, industrial, and other customers, revenues derived from residential and commercial customers generally account for approximately 90% of total water and electric revenues. Most of ASUS’s revenues are derived from the U.S. government.

For the three months ended March 31, 2026 and 2025, disaggregated revenues from contracts with customers by segment were as follows:

	Three Months Ended March 31,
(dollars in thousands)	2026		2025
Water:
Tariff-based revenues	$	111,195	$	100,331
CPUC-approved surcharges (cost-recovery activities)	414		805
Other	618		611
Water revenues from contracts with customers	112,227		101,747
M-WRAM under/(over)-collection (alternative revenue programs)	883		256
Total water revenues	113,110		102,003
Electric:
Tariff-based revenues	17,736		13,733
CPUC-approved surcharges (cost-recovery activities)	1,659		43
Electric revenues from contracts with customers	19,395		13,776
BRRBA under/(over)-collection (alternative revenue program)	(738)		1,226
Total electric revenues	18,657		15,002
Contracted services:
Water	23,178		16,612
Wastewater	14,246		14,396
Contracted services revenues from contracts with customers	37,424		31,008
Total AWR revenues	$	169,191	$	148,013

13

The opening and closing balances of the receivable from the U.S. government, contract assets, and contract liabilities from contracts with customers, which are related entirely to ASUS, are as follows:    

(dollars in thousands)	March 31, 2026		December 31, 2025
Unbilled receivables	$	8,919	$	5,048
Receivable from the U.S. government	$	57,428	$	74,060
Contract assets	$	32,915	$	31,507
Contract liabilities	$	11,618	$	11,735

Unbilled receivables and Receivable from the U.S. government represent receivables where the right to payment is conditional only by the passage of time.

Contract Assets - Contract assets are assets of ASUS and its subsidiaries and consist of unbilled revenues recognized from work-in-progress construction projects, where the right to payment is conditional on something other than the passage of time. The classification of this asset as current or noncurrent is based on the timing of when ASUS expects to bill these amounts.

Contract Liabilities - Contract liabilities are liabilities of ASUS and consist of billings in excess of revenue recognized. The classification of this liability as current or noncurrent is based on the timing of when ASUS expects to recognize revenue. Contracted services revenues recognized during the three months ended March 31, 2026, which were included in contract liabilities at the beginning of the period were $6.2 million. Contracted services revenues recognized during the three months ended March 31, 2026 from performance obligations satisfied in previous periods were not material.

As of March 31, 2026, AWR’s aggregate remaining performance obligations, which are entirely from the contracted services segment, were $4.2 billion. ASUS expects to recognize revenue on these remaining performance obligations over the remaining term of each of the contracts, which range from 13 to 48 years. Each of the 50-year contracts with the U.S. government is subject to termination, in whole or in part, prior to the end of its contract term for convenience of the U.S. government. The 50-year contracts provide that, in such an event, the U.S. government would be entitled to repurchase the utility systems, and ASUS would be entitled to recover any unrecovered investments under the contracts’ termination and other provisions at the time of termination.

14

Note 3 — Regulatory Matters

In accordance with accounting principles for rate-regulated enterprises, GSWC and BVES record regulatory assets, which represent probable future recovery of incurred costs from customers through the ratemaking process, and regulatory liabilities, which represent probable future refunds that are to be credited to customers through the ratemaking process. At March 31, 2026, GSWC and BVES had $0.1 million of net regulatory assets on the balance sheets, which included $122.5 million of regulatory assets net of $122.4 million of regulatory liabilities. As authorized by the CPUC, the majority of the regulatory assets and liabilities accrue interest at the current 90-day commercial-paper rate. There are $44.7 million of regulatory assets not accruing a carrying cost, which included $25.8 million related to flowed-through deferred income taxes including the gross-up portion on the deferred tax resulting from the excess deferred income tax regulatory liability, and $15.7 million related to memorandum accounts authorized by the CPUC to track unrealized gains and losses on BVES’s purchase power contracts over the term of the contracts. The remaining $3.2 million relates to other regulatory assets that do not provide for a carrying cost. Furthermore, there are $118.3 million of regulatory liabilities not incurring interest that consisted of $66.9 million related to excess deferred income taxes arising from the lower federal income tax rate under the Tax Cuts and Jobs Act enacted in December 2017 that are being refunded to customers, $41.0 million related to the net over funded positions in Registrant’s pension and other retirement obligations (not including the two-way pension balancing accounts, which accrues interest), and $10.4 million related to the PFAS contamination litigation proceeds memorandum account that also does not accrue interest.

Regulatory assets represent costs incurred by GSWC and/or BVES for which they have received or expect to receive rate recovery in the future. In determining the probability of costs being recognized in other periods, GSWC and BVES consider regulatory rules and decisions, past practices, and other facts or circumstances that would indicate if recovery is probable. If the CPUC determines that a portion of either GSWC’s or BVES’s regulatory assets are not recoverable in customer rates, the applicable utility must determine if it has suffered an asset impairment that requires it to write down the asset’s value. Regulatory assets are offset against regulatory liabilities within each ratemaking area. Amounts expected to be collected or refunded in the next twelve months have been classified as current assets and current liabilities by ratemaking area.

Regulatory assets, less regulatory liabilities, included in the consolidated balance sheets are as follows:

(dollars in thousands)	March 31, 2026		December 31, 2025
GSWC
2022/2023 general rate case memorandum accounts (unbilled revenue)	$	18,814	$	22,107
Flowed-through deferred income taxes, net	22,286		20,932
Low income rate assistance balancing accounts	11,502		10,582
Other regulatory assets	23,370		28,405
Excess deferred income taxes	(63,152)		(63,223)
Pensions and other post-retirement obligations	(43,984)		(43,479)
Per- and Polyfluoroalkyl Substances (“PFAS”) Contamination Litigation Proceeds Memorandum Account	(10,406)		(10,987)
Other regulatory liabilities	(218)		(1,331)
Total GSWC	$	(41,788)	$	(36,994)
BVES
Derivative instrument memorandum account (Note 5)	$	15,708	$	15,503
2023/2024 general rate case memorandum accounts (unbilled revenue)	7,237		8,221
Wildfire mitigation and other fire prevention related costs memorandum accounts	9,877		11,336
Other regulatory assets	13,682		15,213
Other regulatory liabilities	(4,624)		(4,015)
Total BVES	$	41,880	$	46,258
Total AWR	$	92	$	9,264

Regulatory matters are discussed in the consolidated financial statements and the notes thereto included in the Company’s Form 10-K for the year ended December 31, 2025 filed with the SEC. There were no significant changes during the three months ended March 31, 2026 except for routine and recurring activity including the recovery of regulatory assets through surcharges currently in place.

15

PFAS Contamination Litigation Proceeds Memorandum Account:

GSWC has been a plaintiff in various class action lawsuits related to PFAS contamination affecting public water systems. A class settlement agreement among Tyco Fire Products LP (“Tyco”) and the class of eligible public water systems was entered into on April 12, 2024 that resolved any claims for PFAS contamination with Tyco. The class settlement agreement between the parties was approved by an order issued by the Federal District Court of South Carolina on November 22, 2024. As a result of the settlement, GSWC was notified on April 8, 2026 that it will receive from Tyco $2.2 million, net of legal fees.

Settlement proceeds received by GSWC have been and may be used for future capital investments or operations and maintenance expenses related to PFAS water contamination to its water systems or any PFAS related litigation against its water systems, which benefit GSWC’s customers. The CPUC has authorized GSWC to track in a memorandum account the settlement payments received by GSWC from lawsuits related to PFAS contamination in its water systems, which include the proceeds received for participation in class action lawsuits. The amounts in the memorandum account have been recorded as a regulatory liability and have been used, and will continue to be used in the future, to offset the incremental investments in replacement and treatment of property, as well as operations and maintenance expenses and other direct expenses related to PFAS contamination.

Note 4 — Earnings per Share/Capital Stock

In accordance with the accounting guidance for participating securities and earnings per share (“EPS”), Registrant uses the “two-class” method of computing EPS. The “two-class” method is an earnings allocation formula that determines EPS for each class of common stock and participating security. AWR has participating securities related to restricted stock units that earn dividend equivalents on an equal basis with AWR’s Common Shares, and that have been issued under AWR’s stock incentive plans for employees and the non-employee directors stock plans. In applying the “two-class” method, undistributed earnings are allocated to both Common Shares and participating securities.

The following is a reconciliation of Registrant’s net income and weighted average Common Shares outstanding used to calculate basic EPS:

Basic:	For The Three Months Ended   March 31,
(in thousands, except per share amounts)	2026		2025
Net income	$	29,948	$	26,844
Less: impact from participating securities	87		81
Total income available to common shareholders	$	29,861	$	26,763
Weighted average Common Shares outstanding, basic	39,111		38,253
Basic earnings per Common Share	$	0.76	$	0.70

Diluted EPS is based upon the weighted average number of Common Shares, including both outstanding shares and shares potentially issuable in connection with restricted stock units granted under AWR’s stock incentive plans for employees and directors, and net income. The following is a reconciliation of Registrant’s net income and weighted average Common Shares outstanding used to calculate diluted EPS:

Diluted:	For The Three Months Ended   March 31,
(in thousands, except per share amounts)	2026		2025
Common shareholders earnings, basic	$	29,861	$	26,763
Undistributed earnings for dilutive restricted stock units	30		27
Total common shareholders earnings, diluted	$	29,891	$	26,790
Weighted average Common Shares outstanding, basic	39,111		38,253
Stock-based compensation (1)	99		101
Weighted average Common Shares outstanding, diluted	39,210		38,354
Diluted earnings per Common Share	$	0.76	$	0.70

(1)     In applying the treasury stock method of reflecting the dilutive effect of outstanding stock-based compensation in calculating diluted EPS, 155,400 and 153,583 restricted stock units, including performance awards to officers of the Company at March 31, 2026 and 2025, respectively, were deemed to be outstanding and included in the calculation of diluted EPS.

16

On February 27, 2024, AWR entered into an Equity Distribution Agreement with third-party sales agents, under which AWR may offer and sell its Common Shares, from time to time at its sole discretion, through an at-the-market (“ATM”) offering program having an aggregate gross offering price of up to $200 million over a three-year period and pursuant to AWR’s effective shelf registration statement on Form S-3. AWR has used the net proceeds from these sales, after deducting commissions on such sales and offering expenses, for general corporate purposes, including, but not limited to, repayment of debt and equity contributions to its subsidiaries. During the three months ended March 31, 2026 and 2025, AWR sold 84,237 and 334,548 Common Shares, respectively, through the ATM offering program and raised proceeds of $6.3 million, net of $0.1 million in commissions paid, and $25.8 million, net of $0.4 million in commissions paid, respectively. AWR also incurred $0.1 million of other expenses for each of the three months ended March 31, 2026 and 2025, which was primarily legal and other costs. As of March 31, 2026, approximately $34.3 million remains available for sale under the ATM offering program.

During the three months ended March 31, 2026 and 2025, AWR also issued 25,946 and 23,014 Common Shares related to restricted stock units, respectively, pursuant to stock-based compensation plans.

During the three months ended March 31, 2026 and 2025, AWR paid $1.4 million and $1.3 million, respectively, to taxing authorities on employees’ behalf for shares withheld related to net share settlements. During the three months ended March 31, 2026 and 2025, GSWC paid $1.2 million in each period to taxing authorities on employees’ behalf for shares withheld related to net share settlements. These payments are included in the stock-based compensation caption of the statements of equity.

During the three months ended March 31, 2026 and 2025, AWR paid quarterly dividends to shareholders of approximately $19.7 million, or $0.5040 per share, and $17.8 million, or $0.4655 per share, respectively. During the three months ended March 31, 2026 , GSWC paid dividends of $19.7 million to AWR. GSWC did not pay a dividend to AWR during the three months ended March 31, 2025.

Note 5 — Derivative Instruments

In May 2025, the CPUC approved a new power purchase contract between BVES and a third party. The new contract provides for the purchase of electricity during a delivery period from June 1, 2025 through December 31, 2028 and is subject to the accounting guidance for derivatives and requires mark-to-market accounting. In addition, BVES continues to procure renewable portfolio standard eligible energy and renewable energy credits as a bundled product through a contract that delivers through December 31, 2035. Under this contract, there is an embedded derivative that also requires mark-to-market accounting.

The CPUC authorized the use of regulatory asset and liability memorandum accounts to offset the mark-to-market entries required by the accounting guidance. Accordingly, all unrealized gains and losses generated from derivative instruments in the purchase power contracts are deferred on a monthly basis into a non-interest-bearing regulatory memorandum account that tracks the changes in fair value of the derivatives throughout the terms of the contracts. As a result, these unrealized gains and losses do not impact Registrant’s earnings. As of March 31, 2026, the fair value of the derivative liability was $15.7 million for the power purchase contracts, with a corresponding regulatory asset recorded in the derivative instrument memorandum account as a result of overall fixed prices under BVES’s purchase power contract being higher than future energy prices. The notional volume of obligations remaining under these long-term contracts as of March 31, 2026 was 760,412 megawatt hours.

The accounting guidance for fair value measurements applies to all financial assets and financial liabilities that are measured and reported on a fair value basis. Under the accounting guidance, Registrant has made fair value measurements that are classified and disclosed in one of the following three categories:

Level 1: Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities;

Level 2: Quoted prices in markets that are not active or inputs which are observable, either directly or indirectly, for substantially the full term of the asset or liability; or

Level 3: Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported by little or no market activity).

To value the derivatives in the purchase power contracts, BVES utilizes various inputs that include quoted market prices for energy over the duration of its contracts. The market prices used to determine the fair value for the derivative instruments were estimated based on independent sources such as broker quotes and publications that are not observable in or corroborated by the market. When such inputs have a significant impact on the measurement of fair value, the instruments are categorized as Level 3. Accordingly, the valuation of the derivatives within BVES’s purchase power contracts have been classified as Level 3 for all periods presented.

17

The change in fair value was due to changes in forward market energy prices as of March 31, 2026 and 2025. The following table presents changes in the fair value of the Level 3 derivatives for the three months ended March 31, 2026 and 2025:

	For The Three Months Ended   March 31,
(dollars in thousands)	2026		2025
Fair value at beginning of the period	$	(15,503)	$	(8,823)
Unrealized (losses) gains on purchase power contracts	(205)		(4,271)
Fair value at end of the period	$	(15,708)	$	(13,094)

Note 6 — Fair Value of Financial Instruments

For cash and cash equivalents, accounts receivable, accounts payable and short-term debt, the carrying amount is assumed to approximate fair value due to the short-term nature of these items.

Investments held in a Rabbi Trust for the supplemental executive retirement plan (“SERP”) are measured at fair value and totaled $47.1 million as of March 31, 2026 and $48.4 million as of December 31, 2025. All equity investments in the Rabbi Trust are Level 1 investments in mutual funds. The investments held in the Rabbi Trust are included in “Other Property and Investments” on Registrant’s balance sheets.

The table below estimates the fair value of long-term debt held by AWR and GSWC, respectively. The fair values as of March 31, 2026 and December 31, 2025 were determined using rates for similar financial instruments of the same duration utilizing Level 2 methods and assumptions. Changes in the assumptions will produce different results.

	March 31, 2026				December 31, 2025
(dollars in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial liabilities:
Long-term debt—AWR (1)	$	794,185	$	776,792	$	794,310	$	790,820
	March 31, 2026				December 31, 2025
(dollars in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial liabilities:
Long-term debt—GSWC (2)	$	709,185	$	690,889	$	709,310	$	703,319

__________________

(1) Excludes debt issuance costs of approximately $3.2 million and $3.4 million as of March 31, 2026 and December 31, 2025, respectively.

(2) Excludes debt issuance costs of approximately $2.9 million and $3.0 million as of March 31, 2026 and December 31, 2025, respectively.

Note 7 — Income Taxes

AWR’s effective income tax rate (“ETR”) was 24.8% and 24.0% for the three months ended March 31, 2026 and 2025, respectively. GSWC’s ETR was 25.9% and 24.7% for the three months ended March 31, 2026 and 2025, respectively.

The AWR and GSWC ETRs differed from the federal corporate statutory tax rate of 21% primarily due to (i) state taxes; (ii) permanent differences, including certain tax effects from stock compensation; (iii) the ongoing amortization of the excess deferred income tax liability; and (iv) differences between book and taxable income that are treated as flowed-through adjustments in accordance with regulatory requirements (principally from plant, rate-case, and compensation-related items). As regulated utilities, GSWC and BVES treat certain temporary differences as flowed-through to customers in computing their income tax expense consistent with the income tax method used in their CPUC-jurisdiction rate making. Flowed-through items either increase or decrease tax expense and the ETR.

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Note 8 — Employee Benefit Plans

The components of net periodic benefit costs for Registrant’s pension plan, postretirement medical benefit plan and SERP for the three months ended March 31, 2026 and 2025 were as follows:

	For The Three Months Ended March 31,
	Pension Benefits				Other Postretirement Benefits				SERP
(dollars in thousands)	2026		2025		2026		2025		2026		2025
Components of Net Periodic Benefits Cost:
Service cost	$	752	$	774	$	27	$	27	$	202	$	181
Interest cost	2,713		2,706		19		24		506		485
Expected return on plan assets	(3,554)		(3,183)		(179)		(161)		—		—
Amortization of prior service cost	109		108		—		—		—		—
Amortization of actuarial (gain) loss	(481)		—		(71)		(291)		—		—
Net periodic benefits costs under accounting standards	$	(461)	$	405	$	(204)	$	(401)	$	708	$	666

Registrant's contribution to its pension plan in 2026 is not expected to be significant given its current funded status. Registrant’s policy is to fund the plans annually at a level which is deductible for income tax purposes and is consistent with amounts recovered in customer rates while also complying with ERISA’s funding requirements.

As authorized by the CPUC in the water and electric general rate case decisions, GSWC and BVES each utilize two-way balancing accounts to track differences between the forecasted annual pension expenses in rates, or expected to be in rates, and the actual annual expense recorded in accordance with the accounting guidance for pension costs. During the three months ended March 31, 2026 and 2025, GSWC’s actual pension expense was lower than the amounts included in water customer rates by $0.9 million and $0.3 million during the three months ended March 31, 2026 and 2025, respectively. As of March 31, 2026, GSWC has a $3.0 million over-collection in its two-way balancing account, which is included as part of regulatory liabilities (Note 3).

BVES’s actual expense was lower than the amounts included in electric customer rates for all periods presented. As a result of receiving a final decision in its electric general rate case in the fourth quarter of 2024, BVES’s actual pension expense is nearly aligned with the amounts included in electric rates, resulting in an insignificant balance in their pension balancing account as of March 31, 2026.

Note 9 — Contingencies

Environmental Clean-Up and Remediation at GSWC:

GSWC has been involved in environmental remediation and cleanup at one of its plant sites that contained an underground storage tank, which was used to store gasoline for its vehicles. This tank was removed from the ground in July 1990 along with the dispenser and ancillary piping. Since then, GSWC has been involved in various remediation activities at this site. 

As of March 31, 2026, the total amount spent to clean-up and remediate the plant site, since inception of the remediation period, amounted to approximately $7.0 million, of which $1.5 million has been paid by the State of California Underground Storage Tank Fund. Amounts paid by GSWC have been included in rate base and approved by the CPUC for recovery. As of March 31, 2026, GSWC has a regulatory asset and an accrued liability for the estimated remaining cost of $1.3 million to complete the clean-up at the site. The estimate includes costs for continued activities of groundwater cleanup and monitoring, future soil treatment and site-closure-related activities. The ultimate cost may vary as there are many unknowns in remediation of underground gasoline spills and this is an estimate based on currently available information. Management believes it is probable that the estimated additional costs will continue to be approved in rate base by the CPUC as approved historically.

Other Litigation:

Registrant is also subject to other ordinary routine litigation incidental to its business, some of which may include claims for compensatory and punitive damages. Management believes that rate recovery, proper insurance coverage and reserves are in place to insure against, among other things, property, general liability, employment, and workers’ compensation claims incurred in the ordinary course of business. Insurance coverage may not cover certain claims involving punitive damages. Registrant does not believe the outcome from any pending suits or administrative proceedings will have a material effect on Registrant’s consolidated results of operations, financial position, or cash flows.

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Note 10 — Business Segments

AWR has three reportable segments: water, electric and contracted services. GSWC has one segment, water. On a stand-alone basis, AWR has no material assets or liabilities other than its equity investments in its subsidiaries, note payables to bank, deferred taxes and note receivables from affiliate.

GSWC and BVES are CPUC regulated public utilities with business activities conducted in California. Activities of ASUS and its subsidiaries are conducted in California, Florida, Kansas, Maryland, Massachusetts, New Mexico, North Carolina, South Carolina, Texas and Virginia. Some of ASUS’s wholly owned subsidiaries are regulated by the state in which the subsidiary primarily conducts water and/or wastewater operations. Fees charged for operations and maintenance and renewal and replacement services are based upon the terms of the contracts with the U.S. government, which have been filed, as appropriate, with the commissions in the states in which ASUS’s subsidiaries are incorporated.

Registrant evaluates the performance of its reportable segments based on segment net income (loss). Registrant’s chief operating decision maker is the chief executive officer. The chief operating decision maker uses segment net income (loss) as a financial measure as part of the annual operating budget and forecasting process to monitor monthly financial activities of its segments. This financial information is reviewed and evaluated by the chief operating decision maker in making segment operating, capital, and business decisions.

The following tables present information by reportable segment and AWR (parent) that reconcile segment net income (loss) to total consolidated net income (loss) and segment assets to total consolidated assets. The utility plant balances are net of respective accumulated provisions for depreciation. The net property, plant and equipment of the electric segment is presented net of Contributions in Aid of Construction (CIAC). Capital additions reflect capital expenditures paid in cash and exclude U.S. government-funded and third-party prime funded capital expenditures for ASUS’s subsidiaries and property installed by developers and conveyed to GSWC and BVES.

	For The Three Months Ended March 31, 2026
							Total
					Contracted		Reportable		AWR		Consolidated
(dollars in thousands)	Water		Electric		Services		Segments		Parent		AWR
Operating revenues	$	113,110	$	18,657	$	37,424	$	169,191	$	—	$	169,191
Less:
Supply costs	30,261		4,397		—		34,658		—		34,658
Other operation	7,144		1,341		2,783		11,268		—		11,268
Administrative and general	17,754		3,666		6,732		28,152		2		28,154
Depreciation and amortization expense (1)	10,659		1,066		959		12,684		—		12,684
Maintenance	2,074		2,250		1,376		5,700		—		5,700
Property and other taxes	6,520		822		681		8,023		—		8,023
ASUS construction expense	—		—		17,333		17,333		—		17,333
Segment operating income (loss)	38,698		5,115		7,560		51,373		(2)		51,371
Interest expense	(9,392)		(1,253)		(71)		(10,716)		(1,391)		(12,107)
Interest income	478		290		200		968		8		976
Gain (loss) on investments held in a trust	(1,272)		—		—		(1,272)		—		(1,272)
Income tax expense (benefit)	7,564		884		1,889		10,337		(465)		9,872
Other segment items income (expense) (2)	735		45		15		795		57		852
Segment net income (loss)	$	21,683	$	3,313	$	5,815	$	30,811	$	(863)	$	29,948
	For The Three Months Ended March 31, 2026
							Total
					Contracted		Reportable		AWR		Consolidated
(dollars in thousands)	Water		Electric		Services		Segments		Parent		AWR
Capital additions (3)	$	42,244	$	4,932	$	1,875	$	49,051	$	—	$	49,051

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	For The Three Months Ended March 31, 2025
							Total
					Contracted		Reportable		AWR		Consolidated
(dollars in thousands)	Water		Electric		Services		Segments		Parent		AWR
Operating revenues	$	102,003	$	15,002	$	31,008	$	148,013	$	—	$	148,013
Less:
Supply costs	25,423		4,065		—		29,488		—		29,488
Other operation	6,675		1,241		2,574		10,490		—		10,490
Administrative and general	17,657		3,098		6,119		26,874		1		26,875
Depreciation and amortization expense (1)	9,824		885		873		11,582		—		11,582
Maintenance	2,004		911		1,232		4,147		—		4,147
Property and other taxes	5,624		686		642		6,952		—		6,952
ASUS construction expense	—		—		12,933		12,933		—		12,933
Segment operating income (loss)	34,796		4,116		6,635		45,547		(1)		45,546
Interest expense	(9,328)		(1,136)		(313)		(10,777)		(1,305)		(12,082)
Interest income	1,272		524		199		1,995		18		2,013
Gain (loss) on investments held in a trust	(586)		—		—		(586)		—		(586)
Income tax expense (benefit)	6,514		1,047		1,377		8,938		(476)		8,462
Other segment items income (expense) (2)	266		169		(20)		415		—		415
Segment net income (loss)	$	19,906	$	2,626	$	5,124	$	27,656	$	(812)	$	26,844
	For The Three Months Ended March 31, 2025
							Total
					Contracted		Reportable		AWR		Consolidated
(dollars in thousands)	Water		Electric		Services		Segments		Parent		AWR
Capital additions (3)	$	57,858	$	7,853	$	1,854	$	67,565	$	—	$	67,565

(1)   Depreciation computed on regulated utilities’ transportation equipment is recorded in other operating expenses and totaled $0.3 million for each of the three months ended March 31, 2026 and 2025.

(2) Other segment items primarily consist of a) non-service cost components related to Registrant’s benefit plans, and b) AFUDC (equity) on certain BVES capital projects while under construction.

(3) Capital additions reflect capital expenditures paid in cash and exclude U.S. government-funded and third-party prime funded capital expenditures for ASUS’s subsidiaries and property installed by developers and conveyed to GSWC and BVES.

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The following tables reconcile segment net property, plant and equipment to total consolidated assets (in thousands):

	As of March 31, 2026
							Total
					Contracted		Reportable		AWR		Less		Consolidated
	Water		Electric		Services		Segments		Parent		Eliminations		AWR
Total net property, plant and equipment (4)	$	2,114,302	$	194,252	$	21,139	$	2,329,693	$	—	$	—	$	2,329,693
Other assets	220,008		58,765		123,628		402,401		1,180,569		(1,178,523)		404,447
Total consolidated assets	$	2,334,310	$	253,017	$	144,767	$	2,732,094	$	1,180,569	$	(1,178,523)	$	2,734,140
	As of December 31, 2025
							Total
					Contracted		Reportable		AWR		Less		Consolidated
	Water		Electric		Services		Segments		Parent		Eliminations		AWR
Total net property, plant and equipment (4)	$	2,083,684	$	192,416	$	20,219	$	2,296,319	$	—	$	—	$	2,296,319
Other assets	232,178		61,928		126,437		420,543		1,176,760		(1,178,530)		418,773
Total consolidated assets	$	2,315,862	$	254,344	$	146,656	$	2,716,862	$	1,176,760	$	(1,178,530)	$	2,715,092

(4) The utility plant balances are net of respective accumulated provisions for depreciation.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

General

The following discussion and analysis provides information on AWR’s consolidated operations and assets, and includes specific references to (i) GSWC, AWR’s regulated water utility segment, (ii) BVES, AWR’s regulated electric utility segment, (iii) ASUS and its subsidiaries, collectively, AWR’s contracted services segment, and (iv) AWR (parent) where applicable.

Included in the following analysis is a discussion of Registrant’s operations in terms of earnings per share by business segment and AWR (parent), which equals each business segment’s earnings divided by AWR’s weighted average number of diluted Common Shares. All of the measures discussed are derived from consolidated financial information of Registrant, but are not presented in our financial statements that are prepared in accordance with Generally Accepted Accounting Principles in the United States (“GAAP”). These items constitute “non-GAAP financial measures” under Securities and Exchange Commission rules, which supplement our GAAP disclosures but should not be considered as an alternative to the respective GAAP measures. Furthermore, the non-GAAP financial measures may not be comparable to similarly titled non-GAAP financial measures of other registrants.

AWR uses earnings per share by business segment and AWR (parent) as an important measure in evaluating its operating results and believes it provides investors with clarity surrounding the performance of its business segments and the parent company. AWR reviews this measurement regularly and compares it to historical periods and to its operating budget. A reconciliation to AWR’s consolidated diluted earnings per share prepared in accordance with GAAP is included in the discussion under the section titled “Summary of First Quarter Results by Segment.”

Overview

Factors affecting our financial performance are summarized under “Risk Factors” in our Form 10-K for the period ended December 31, 2025 filed with the SEC.

Although Registrant operates solely in the U.S., geopolitical developments abroad, such as the ongoing U.S. military operation in Iran, could indirectly affect our business through volatility in commodity prices, inflationary pressures, supply chain and operating cost impacts, and potential disruptions in banking systems and capital markets. Management is actively engaged with vendors and business partners to monitor and mitigate financial risks of global uncertainties; however, the scope and duration of any impacts remain uncertain. As of the date of this filing, geopolitical developments during the first quarter of 2026 have not had a material impact on the Company.

Water and Electric Segments:

GSWC’s revenues, operating income and cash flows are earned primarily through delivering potable water to homes and businesses in California. BVES’s revenues, operating income and cash flows are primarily earned through delivering electricity in the Big Bear area of San Bernardino County, California. Rates charged to GSWC and BVES customers are authorized by the CPUC. These rates are intended to allow recovery of operating costs and a reasonable rate of return on invested capital.  GSWC and BVES plan to continue seeking recovery of their operating and supply costs, and receive reasonable returns on invested capital. Capital expenditures in future years at GSWC and BVES are expected to remain at substantially higher levels than depreciation expense. When necessary, GSWC and BVES may obtain funds from external sources in the capital markets and through bank borrowings.

General Rate Case Filings:

Water General Rate Case for the Years 2025–2027

On January 30, 2025, the CPUC issued a final decision in GSWC’s general rate case application for all its water regions and the general office, which determines new water rates for the years 2025 - 2027. Among other things, the approved settlement authorizes GSWC to invest approximately $573.1 million in capital infrastructure over the three-year capital cycle. The $573.1 million of infrastructure investment includes $17.7 million of advice letter capital investments to be filed for revenue recovery during the second and third year attrition increases when those projects are completed. In addition, the approved settlement agreement includes $58.2 million of advice letter capital investments, that began construction in 2023, to be filed for revenue recovery during the second and third year attrition increases when those projects are completed. All of the advice letter projects were allowed to accrue in a memorandum account (i) interest during the construction period at GSWC’s adopted cost of debt until the assets are in service, and (ii) the full rate of return that includes a debt and equity component and all applicable components of the revenue requirement for the projects from the period the assets are in service until the date of the attrition filings.

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In December 2025, GSWC received approval from the CPUC to implement its full second-year rate increases, effective January 1, 2026, that will result in higher adopted operating revenues less water supply cost for 2026 of approximately $32.0 million compared to 2025’s adopted operating revenues less water supply cost. Included in the 2026 increase is nearly $11 million related to the advice letter capital projects previously discussed. The assets from the advice letter projects and the related amounts in the memorandum account were added to the adopted rate base for inclusion in the revenue requirement effective January 1, 2026.

The final decision also addressed GSWC’s request for various regulatory mechanisms that were litigated during the proceeding. Among other things, the final decision rejected GSWC’s request for the continuation of a full sales and revenue decoupling mechanism such as the WRAM and a full cost balancing account for water supply such as the MCBA, and instead ordered GSWC to transition to a modified rate adjustment mechanism (a Monterey-style WRAM or “M-WRAM”) and an incremental cost balancing account (“ICBA”) for supply costs. The final decision also adopted GSWC’s M-WRAM rate design proposal authorizing GSWC to increase the revenue requirement recovery in its fixed service charges to between 45-48% of the revenue requirement depending on the ratemaking area representing approximately 65% of GSWC’s fixed costs in aggregate, and approved GSWC’s request for the continuation of a sales reconciliation mechanism that would allow GSWC to adjust its sales forecast throughout the general rate case cycle to address significant fluctuations in consumption. The M-WRAM tracks the difference between the revenue based on actual metered sales through a tiered volumetric rate and the revenue that would have been received with the same actual metered sales if a standard single quantity rate had been in effect. The ICBA for supply costs tracks differences between the authorized per-unit prices and actual per-unit prices for each supply cost (purchased water, pump tax, and purchased power). The M-WRAM and ICBA were effective January 1, 2025.

The new 2026 rates have been reflected in GSWC’s earnings for the three months ended March 31, 2026 resulting in an increase in recorded revenues of $11.1 million largely from the second-year rates and advice letter filings, and an increase in recorded water supply costs of $4.8 million, which combined is an increase of $6.3 million, compared to the same period in 2025. As a result of the discontinuation of the WRAM and MCBA effective January 1, 2025, GSWC’s earnings have been and will continue to be subject to volatility as a result of fluctuations in consumption and/or changes in water supply source mix compared to adopted levels.

Electric General Rate Cases:

General Rate Case for the Years 2023–2026

On January 16, 2025, the CPUC adopted a final decision in BVES’s general rate case proceeding that set new electric rates retroactive to January 1, 2023 and approved the settlement agreement reached between BVES, Cal Advocates and another intervenor in its entirety. Among other things, the settlement agreement, (i) settled and adopted the revenue requirements for each of the four years 2023 through 2026, and the rate increases for 2024 through 2026 are not subject to an earnings test, (ii) authorized BVES to invest approximately $52.5 million in capital infrastructure included in base rates over the four-year rate cycle and at least an additional $23.1 million (plus an allowance for funds used during construction, or “AFUDC”) to be filed for revenue recovery through advice letters when the projects are completed; (iii) adopted a cost of capital that increased BVES’s adopted return on equity from 9.6% to 10.0%, lowered the cost of debt from 6.6% to 5.51%, and maintained the capital structure of 57% equity and 43% debt, and (iv) approved for recovery the requested capital expenditures and other incremental operating costs already incurred prior to 2023 in connection with BVES’s wildfire mitigation plans that were previously not included in customer rates.

The final decision provides for an increase in adopted operating revenues of $3.3 million in 2026. In addition, the advice letter projects of at least $23.1 million are expected to generate additional annual operating revenues of approximately $3 million when the respective projects are completed, placed in service, and filed for recovery in customer rates. These projects also accrued AFUDC during construction that further increases the revenue requirement. In 2025, BVES implemented new base rates to recover the revenue requirement associated with $23.8 million (including AFUDC) of capital projects approved for recovery through advice letters that were completed and placed in service.

General Rate Case for the Years 2027–2030

On January 30, 2026, BVES filed a new general rate case application that will determine new electric rates for the years 2027 through 2030. Among other things, BVES requested (i) capital budgets of approximately $133 million for the four-year rate cycle, and another approximately $17 million, plus AFUDC, for capital projects to be filed for revenue recovery through advice letters when the projects are completed, and (ii) a capital structure for BVES of 60% equity and 40% debt, a return on equity of 11.30%, an embedded cost of debt of 5.92%, and a return on rate base of 9.15%.

Contracted Services Segment:

ASUS’s revenues, operating income and cash flows are earned by providing water and/or wastewater services, including operation and maintenance services and construction of facilities for the water and/or wastewater systems at various military installations, pursuant to an initial 50-year, firm-fixed-price contract, additional firm-fixed-price contracts, task order agreements

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and subcontracts with third party prime contractors on military bases. Currently, ASUS has one subsidiary that has entered into a task order agreement with the U.S. government that has a term of 15 years. The contract prices for each of the contracts and recurring task order agreements are subject to annual economic price adjustments. Additional revenues generated by contract operations are primarily dependent on annual economic price adjustments, and new construction activities under contract modifications with the U.S. government or agreements with other third-party prime contractors. ASUS’s subsidiaries expect to continue to enter into U.S. government-awarded contract modifications and agreements with third-party prime contractors for new construction projects at the military bases served.

Early in 2026, the U.S. government experienced partial shutdowns affecting mainly the Department of Homeland Security and other federal departments. Amid the recent U.S. government shutdown, the subsidiaries of ASUS have not experienced and are not expected to experience any earnings impact to their existing operations and maintenance and renewal and replacement services, as utility privatization contracts are an “excepted service.” Management expects that any future impact on ASUS and its operations through its subsidiaries will likely be limited to (a) the timing of funding to pay for services rendered, (b) delays in the processing of economic price adjustments (“EPAs”) and/or requests for equitable adjustments (“REAs”), (c) the timing of the issuance of contract modifications for new construction work not already funded by the U.S. government, (d) the timing of construction work associated with delays in receiving construction permits from furloughs at government agencies, and/or (e) delays in solicitation for and/or awarding of new contracts under the Department of Defense contracting programs. In the event the U.S. government shutdown extends for an unprecedented and much longer period, ASUS’s liquidity and earnings could be impacted.

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Summary of First Quarter Results by Segment

The table below sets forth a comparison of the first quarter of 2026 diluted earnings per share contribution reported by business segment and for the parent company with amounts reported during the same period in 2025.

:

	Diluted Earnings per Share
	Three Months Ended
	3/31/2026		3/31/2025		CHANGE
Water	$	0.55	$	0.52	$	0.03
Electric	0.08		0.07		0.01
Contracted services	0.15		0.13		0.02
AWR (parent)	(0.02)		(0.02)		—
Consolidated diluted earnings per share, as recorded (GAAP)	$	0.76	$	0.70	$	0.06

For the three months ended March 31, 2026, AWR’s recorded consolidated diluted earnings were $0.76 per share, as compared to $0.70 per share for the same period in 2025, an increase of $0.06 per share or 8.6%, primarily generated from higher earnings at the water and electric utility segments resulting from the implementation of new customer rate increases approved by the CPUC, and higher construction activities that resulted in higher earnings at the contracted services segment. AWR’s consolidated diluted earnings for the first quarter of 2026 were negatively impacted by $0.02 per share from the higher number of dilutive shares in the first quarter of 2026 compared to the same period 2025 due to the continued dilutive effects from the issuance of equity under AWR’s at-the-market (“ATM”) offering program.

The following is a computation and reconciliation of diluted earnings per share from the measure of net income (loss) by business segment and for the parent company as disclosed in Note 10 to the Unaudited Consolidated Financial Statements to AWR’s consolidated fully diluted earnings per common share (as recorded), for the three months ended March 31, 2026 and 2025:

	Water				Electric				Contracted Services				AWR (Parent)				Consolidated (GAAP)
(in thousands, except per share amounts)	Q1 2026		Q1 2025		Q1 2026		Q1 2025		Q1 2026		Q1 2025		Q1 2026		Q1 2025		Q1 2026		Q1 2025
Net income (loss)	$	21,683	$	19,906	$	3,313	$	2,626	$	5,815	$	5,124	$	(863)	$	(812)	$	29,948	$	26,844
Weighted Average Number of Diluted Shares	39,210		38,354		39,210		38,354		39,210		38,354		39,210		38,354		39,210		38,354
Diluted earnings (loss) per share	$	0.55	$	0.52	$	0.08	$	0.07	$	0.15	$	0.13	$	(0.02)	$	(0.02)	$	0.76	$	0.70

Water Segment:

For the three months ended March 31, 2026, recorded diluted earnings from the water utility segment were $0.55 per share, as compared to $0.52 per share for the same period in 2025, an increase of $0.03 per share. The discussion below presents the major variances in earnings for the two periods.

•An increase in water operating revenues of $11.1 million was largely as a result of the CPUC-authorized second-year rate increases and additional revenues for capital projects approved in advice letter filings, both of which were effective January 1, 2026. Water consumption for the three months ended March 31, 2026 was consistent with the same period in 2025 and adopted levels. However, as a result of transitioning from a full revenue decoupling mechanism to the M-WRAM effective January 1, 2025, GSWC’s revenues and earnings will continue to be subject to future volatility from significant fluctuations in customer consumption.

•An increase in water supply costs of $4.8 million, which consist of purchased water, purchased power for pumping, groundwater production assessments and changes in the water supply cost balancing accounts. The increase in water supply costs compared to the same period in 2025 is largely because of (i) an overall increase in the per-unit purchased water costs that are covered in current rates resulting in no impact to net earnings, and (ii) an increase in purchased water volume compared to the same period in 2025 resulting from certain wells being temporarily offline in a few customer service areas. As a result, GSWC’s earnings for the three months ended March 31, 2026 were impacted by an actual water supply source mix that included more purchased water than in the same period of 2025. Due to transitioning from a full cost balancing account for water supply to the ICBA effective January 1, 2025, GSWC’s earnings have been and will be subject to future volatility from favorable and unfavorable changes in the water supply source mix compared to the adopted mix incorporated in the revenue requirement.

•An overall increase in operating expenses of $2.4 million (excluding supply costs) due primarily to increases in (i) overall labor costs and other employee-related benefits, (ii) overall operation-related costs including lab fees for water quality testing and conservation spending, (iii) depreciation and amortization expenses, which are impacted by

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increasing capital additions placed in service and are reflected and recovered in customer rates, and (iv) property and other non-income taxes.

•An overall increase in interest expense (net of interest income) of $0.9 million resulting largely from (i) the impact of capitalizing debt costs related to certain advice letter projects approved by the CPUC in the latest general rate case effective January 1, 2025, as previously discussed, that was recorded in 2025 with no similar item in 2026, and (ii) a decrease in interest income earned on regulatory assets due to decreasing regulatory balances as GSWC recovers the amounts through surcharges; partially offset by decreases in overall borrowing levels and average interest rates. The advice letter projects discussed are now included in adopted rate base and are part of the rate increases effective January 1, 2026.

•An overall increase in other expense (net of other income) of $0.2 million due largely to losses totaling $1.3 million generated on investments held to fund one of the company’s retirement plans during the three months ended March 31, 2026, as compared to losses on investments of $0.6 million recorded during the same period in 2025 due to financial market conditions; partially offset by a decrease in the non-service cost components related to GSWC’s benefit plans resulting from changes in actuarial assumptions. However, as a result of GSWC’s two-way pension balancing accounts authorized by the CPUC, changes in total net periodic benefits costs related to the pension plan have no material impact to earnings.

•Changes in certain flowed-through income taxes and permanent items included in GSWC’s income tax expense for the three months ended March 31, 2026 as compared to the same period in 2025 unfavorably impacted the water segment’s earnings. As a regulated utility, GSWC treats certain temporary differences as being flowed-through in computing its income tax expense consistent with the income tax method used in its CPUC-jurisdiction rate making. Changes in the magnitude of flowed-through items either increase or decrease tax expense, thereby affecting diluted earnings per share.

•A decrease in earnings of approximately $0.01 per share due to the dilutive effects from the issuance of equity under AWR’s ATM offering program beginning in February 2024. Under the ATM offering program, AWR may offer and sell its Common Shares, with an aggregate gross offering price of up to $200 million, from time to time at its sole discretion, with $34.3 million currently remaining available for sale. Through March 31, 2026, AWR has sold 2,133,225 Common Shares through this ATM offering program.

Electric Segment:

Diluted earnings from the electric utility segment increased $0.01 per share for the first quarter of 2026 as compared to the same period in 2025 largely resulting from an increase of $3.7 million in electric revenues due to the CPUC-authorized fourth-year rate increases in 2026 and additional revenues approved after the first quarter of 2025 to recover the cost plus AFUDC of certain advice letter capital projects, partially offset by an increase in electric supply costs of $0.3 million, which combined is an increase of approximately $3.4 million compared to the same period in 2025.

The net increase discussed above was partially offset by (i) an overall increase in operating expenses of $2.3 million, mostly from operation and maintenance-related activities, and (ii) an increase in interest expense (net of interest and other income) of $0.5 million compared to the same period in 2025 due to a decrease in AFUDC related to certain advice letter projects approved by the CPUC in the latest general rate case, as previously discussed, that was recorded in 2025 with no similar level of AFUDC recorded in 2026, lower interest income earned on regulatory assets, and an increase in interest expense from higher average borrowing levels. The advice letter projects discussed are now included in adopted rate base and are part of the increase in 2026 revenues.

Contracted Services Segment:

Diluted earnings from the contracted services segment increased $0.02 per share for the first quarter of 2026 when compared to the same period in 2025 largely resulting from (i) an increase in construction activities, (ii) an increase in management fee revenues resulting from the resolution of various economic price adjustments, and (iii) a decrease in interest expense (net of interest income) due to lower average borrowing levels and average interest rates. These favorable variances were partially offset by an increase in overall operating expenses (excluding construction expenses). The contracted services segment is expected to contribute $0.63 to $0.67 per share for the full year of 2026.

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Consolidated Results of Operations — Three Months Ended March 31, 2026 and 2025 (amounts in thousands, except per share amounts):

	Three Months Ended   March 31, 2026		Three Months Ended   March 31, 2025		$ CHANGE		% CHANGE
OPERATING REVENUES
Water	$	113,110	$	102,003	$	11,107	10.9	%
Electric	18,657		15,002		3,655		24.4	%
Contracted services	37,424		31,008		6,416		20.7	%
Total operating revenues	169,191		148,013		21,178		14.3	%
OPERATING EXPENSES
Water purchased	21,360		16,308		5,052		31.0	%
Power purchased for pumping	3,297		3,149		148		4.7	%
Groundwater production assessment	5,527		5,679		(152)		(2.7)	%
Power purchased for resale	4,792		6,068		(1,276)		(21.0)	%
Supply cost balancing accounts	(318)		(1,716)		1,398		(81.5)	%
Other operation	11,268		10,490		778		7.4	%
Administrative and general	28,154		26,875		1,279		4.8	%
Depreciation and amortization	12,684		11,582		1,102		9.5	%
Maintenance	5,700		4,147		1,553		37.4	%
Property and other taxes	8,023		6,952		1,071		15.4	%
ASUS construction	17,333		12,933		4,400		34.0	%
Total operating expenses	117,820		102,467		15,353		15.0	%
OPERATING INCOME	51,371		45,546		5,825		12.8	%
OTHER INCOME AND EXPENSES
Interest expense	(12,107)		(12,082)		(25)		0.2	%
Interest income	976		2,013		(1,037)		(51.5)	%
Other, net	(420)		(171)		(249)		145.6	%
Total other income (expenses), net	(11,551)		(10,240)		(1,311)		12.8	%
INCOME BEFORE INCOME TAX EXPENSE	39,820		35,306		4,514		12.8	%
Income tax expense	9,872		8,462		1,410		16.7	%
NET INCOME	$	29,948	$	26,844	$	3,104	11.6	%
Basic earnings per Common Share	$	0.76	$	0.70	$	0.06	8.6	%
Fully diluted earnings per Common Share	$	0.76	$	0.70	$	0.06	8.6	%

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Operating Revenues:

General

GSWC and BVES rely upon approvals by the CPUC of rate increases to recover operating expenses and to provide for a return on invested and borrowed capital used to fund utility plant. ASUS relies on economic price and equitable adjustments by the U.S. government in order to recover operating expenses and provide a profit margin for ASUS. Current operating revenues and earnings may be negatively impacted if ASUS’s subsidiaries do not receive adequate price adjustments in a timely manner. ASUS’s earnings are also impacted by the level of construction projects at its subsidiaries, which may or may not continue at current levels in future periods.

Water

For the three months ended March 31, 2026, revenues from water operations increased by $11.1 million to $113.1 million as compared to the same period in 2025. The increase in water revenues during the first quarter of 2026 is primarily a result of the CPUC-approved second-year rate increases effective January 1, 2026 and, as previously discussed, additional revenues approved to recover the advice letter capital projects that were added to adopted rate base for inclusion in the revenue requirement effective January 1, 2026.

Water consumption for the three months ended March 31, 2026 was consistent with the same period in 2025 and adopted levels. Prior to 2025, changes in consumption had not had a significant impact on recorded revenues due to the CPUC-approved full revenue decoupling mechanism, known as the WRAM, which adjusted volumetric revenues to adopted levels authorized by the CPUC. As previously discussed, the final decision in the latest general rate case rejected GSWC’s request for the continuation of the WRAM, and instead ordered GSWC to transition to a modified rate adjustment mechanism (a Monterey-style WRAM or “M-WRAM”). Without having a full revenue decoupling mechanism, GSWC’s revenues and earnings will be subject to future volatility as a result of significant fluctuations in customer consumption compared to adopted levels.

Electric

Electric revenues for the three months ended March 31, 2026 increased by $3.7 million to $18.7 million largely resulting from an increase in revenues from fourth-year electric rate increases implemented in 2026 as compared to the same period of 2025, and an increase in additional revenues from the approval of certain advice letter projects that were implemented after the first quarter of 2025.

Electric usage for the first quarter of 2026 was 5.0% lower than the same period in 2025. Due to the CPUC-approved Base Revenue Requirement Adjustment Mechanism, which adjusts certain revenues to adopted levels authorized by the CPUC, changes in electric usage do not have a significant impact on earnings.

Contracted Services

Revenues from contracted services are composed of construction revenues (including renewal and replacements) and management fees for operating and maintaining water and/or wastewater systems at various military bases.  For the three months ended March 31, 2026, revenues from contracted services increased by $6.4 million to $37.4 million as compared to $31.0 million for the same period in 2025. The increase was primarily due to an increase in construction activities and an increase in management fees from economic price adjustments.

ASUS’s subsidiaries expect to continue to enter into U.S. government-awarded contract modifications, agreements with third-party prime contractors for new construction projects at the military bases served and task order agreements. Earnings and cash flows from modifications to the initial 15- and 50-year contracts with the U.S. government and agreements with third-party prime contractors for additional construction projects may or may not continue at current levels in future periods.

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Operating Expenses:

Supply Costs

Total supply costs at the regulated utilities comprise the largest portion of total consolidated operating expenses. Supply costs accounted for 29.4% and 28.8% of total operating expenses for the three months ended March 31, 2026 and 2025, respectively.

Water segment supply costs

Two of the principal factors affecting water supply costs are the amount of water produced and the source of the water. Generally, the variable cost of producing water from wells is less than the cost of water purchased from wholesale suppliers.

Prior to 2025, GSWC was able to track in the CPUC-approved MCBA the differences in adopted and actual expense levels for purchased water, power purchased for pumping and pump taxes. GSWC recorded the variances (which include the effects of changes in both rate and volume) between adopted and actual purchased water, purchased power and pump tax expenses as a regulatory asset or liability. GSWC recovered from, or refunded to, customers the amount of such variances. Without the MCBA mechanism in place there may be volatility to Registrant’s earnings as a result of changes in water supply source mix. The MCBA has been replaced with an incremental supply cost balancing account that will not include the impact from changes in water supply source mix compared to the adopted mix incorporated in the revenue requirement, but allows GSWC to track differences between the authorized per-unit prices of water production costs and actual per-unit prices of water production costs. As of March 31, 2026, the balances recorded in the ICBA were not significant.

Supply costs for the water segment consist of purchased water, purchased power for pumping, groundwater production assessments and changes in the water supply cost balancing accounts. For the three months ended March 31, 2026 and 2025, water supply costs consisted of the following amounts (in thousands):

	Three Months Ended   March 31, 2026		Three Months Ended   March 31, 2025		$ CHANGE		% CHANGE
Water purchased	$	21,360	$	16,308	$	5,052	31.0	%
Power purchased for pumping	3,297		3,149		148		4.7	%
Groundwater production assessment	5,527		5,679		(152)		(2.7)	%
Water supply cost balancing accounts *	77		287		(210)		(73.2)	%
Total water supply costs	$	30,261	$	25,423	$	4,838	19.0	%

* The sum of the water and electric supply-cost balancing accounts are shown on AWR’s Consolidated Statements of Income and totaled $(0.3) million and $(1.7) million for the three months ended March 31, 2026 and 2025, respectively.

Water purchased costs for the first quarter of 2026 increased to $21.4 million as compared to $16.3 million for the same period in 2025 due primarily to higher wholesale water prices when compared to the same period in 2025 that are being recovered in current rates, and higher purchased water volume compared to the same period in 2025 resulting from certain wells being temporarily offline in a few customer service areas.

Electric segment supply costs

Supply costs for the electric segment consist primarily of purchased power for resale, the cost of natural gas used by BVES’s generating unit, the cost of renewable energy credits and changes in the electric supply cost balancing account. For the three months ended March 31, 2026 and 2025, electric supply costs consisted of the following amounts (in thousands):

	Three Months Ended   March 31, 2026		Three Months Ended   March 31, 2025		$ CHANGE		% CHANGE
Power purchased for resale	$	4,792	$	6,068	$	(1,276)	(21.0)	%
Electric supply cost balancing account *	(395)		(2,003)		1,608		(80.3)	%
Total electric supply costs	$	4,397	$	4,065	$	332	8.2	%

* The sum of the water and electric supply-cost balancing accounts are shown on AWR’s Consolidated Statements of Income and totaled $(0.3) million and $(1.7) million for the three months ended March 31, 2026 and 2025, respectively.

For the three months ended March 31, 2026, the cost of power purchased for resale to BVES’s electric customers decreased by $1.3 million to $4.8 million as compared to $6.1 million during the same period in 2025 due to lower customer usage, partially offset by higher overall average prices per megawatt-hour that include all fixed costs. The change in the electric supply cost balancing account in 2026 when compared to 2025 is also due to increases in energy prices.

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Other Operation

The primary components of other operation expenses include payroll costs, materials and supplies, chemicals and water treatment costs and outside-service costs of operating the regulated water systems, including the costs associated with water transmission and distribution, pumping, water quality, meter reading, billing, and operations of district offices and the electric system.  Registrant’s contracted services operations incur many of the same types of expenses.  For the three months ended March 31, 2026 and 2025, other operation expenses by business segment consisted of the following (dollar amounts in thousands):

	Three Months Ended   March 31, 2026		Three Months Ended   March 31, 2025		$ CHANGE		% CHANGE
Water Services	$	7,144	$	6,675	$	469	7.0	%
Electric Services	1,341		1,241		100		8.1	%
Contracted Services	2,783		2,574		209		8.1	%
Total other operation	$	11,268	$	10,490	$	778	7.4	%

The increase in other operation expenses at the water segment was primarily due to higher operation-related labor costs and increases in lab fees for water quality testing and water conservation spending.

The increase in other operation expenses at the electric segment was primarily due to higher operation-related outside service costs.

The increase at the contracted services segment was due to higher labor costs.

Administrative and General

Administrative and general expenses include payroll costs related to administrative and general functions, all employee-related benefits, insurance expenses, outside legal and consulting fees, regulatory-utility-commission expenses, expenses associated with being a public company and general corporate expenses charged to expense accounts. For the three months ended March 31, 2026 and 2025, administrative and general expenses by business segment, including AWR (parent), consisted of the following (dollar amounts in thousands): 

	Three Months Ended   March 31, 2026		Three Months Ended   March 31, 2025		$ CHANGE		% CHANGE
Water Services	$	17,754	$	17,657	$	97	0.5	%
Electric Services	3,666		3,098		568		18.3	%
Contracted Services	6,732		6,119		613		10.0	%
AWR (parent)	2		1		1		100.0	%
Total administrative and general	$	28,154	$	26,875	$	1,279	4.8	%

Administrative and general expenses increased at the electric segment due primarily to an increase of $0.7 million in billed surcharges to recover previously incurred costs that had been tracked in CPUC-authorized memorandum accounts, partially offset by lower outside-service costs. Increases in revenues from billed surcharges have a corresponding and offsetting increase in administrative and general expenses, resulting in no impact to earnings.

Administrative and general expenses increased at the contracted services segment due to higher labor costs, employee-related benefits, and legal costs.

Depreciation and Amortization

For the three months ended March 31, 2026 and 2025, depreciation and amortization by business segment consisted of the following (dollar amounts in thousands):

	Three Months Ended   March 31, 2026		Three Months Ended   March 31, 2025		$ CHANGE		% CHANGE
Water Services	$	10,659	$	9,824	$	835	8.5	%
Electric Services	1,066		885		181		20.5	%
Contracted Services	959		873		86		9.9	%
Total depreciation and amortization	$	12,684	$	11,582	$	1,102	9.5	%

The overall increase in depreciation and amortization expense resulted primarily from capital additions to utility plant and other fixed assets placed in service.

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Maintenance

For the three months ended March 31, 2026 and 2025, maintenance expense by business segment consisted of the following (dollar amounts in thousands):

	Three Months Ended   March 31, 2026		Three Months Ended   March 31, 2025		$ CHANGE		% CHANGE
Water Services	$	2,074	$	2,004	$	70	3.5	%
Electric Services	2,250		911		1,339		147.0	%
Contracted Services	1,376		1,232		144		11.7	%
Total maintenance	$	5,700	$	4,147	$	1,553	37.4	%

Maintenance expense increased at the electric services segment due largely to $1.0 million in billed surcharges to recover previously incurred costs that had been tracked in CPUC-authorized memorandum accounts, and higher maintenance activities compared to same period in 2025. Increases in revenues from billed surcharges have a corresponding and offsetting increase in maintenance expenses, resulting in no impact to earnings.

Maintenance expense increased at the contracted services segment due to higher overall maintenance activities compared to the same period in 2025.

Property and Other Taxes

For the three months ended March 31, 2026 and 2025, property and other taxes by business segment consisted of the following (dollar amounts in thousands):

	Three Months Ended   March 31, 2026		Three Months Ended   March 31, 2025		$ CHANGE		% CHANGE
Water Services	$	6,520	$	5,624	$	896	15.9	%
Electric Services	822		686		136		19.8	%
Contracted Services	681		642		39		6.1	%
Total property and other taxes	$	8,023	$	6,952	$	1,071	15.4	%

Property and other taxes increased at both the water and electric segments were due mainly to higher property taxes from capital additions.

ASUS Construction

For the three months ended March 31, 2026, construction expenses for contracted services were $17.3 million, an increase of $4.4 million compared to the same period in 2025, primarily resulting from an increase in new construction activities as compared to the same period of 2025.

Interest Expense

For the three months ended March 31, 2026 and 2025, interest expense by business segment, including AWR (parent), consisted of the following (dollar amounts in thousands):

	Three Months Ended   March 31, 2026		Three Months Ended   March 31, 2025		$ CHANGE		% CHANGE
Water Services	$	9,392	$	9,328	$	64	0.7	%
Electric Services	1,253		1,136		117		10.3	%
Contracted Services	71		313		(242)		(77.3)	%
AWR (parent)	1,391		1,305		86		6.6	%
Total interest expense	$	12,107	$	12,082	$	25	0.2	%

AWR’s borrowings consist of revolving credit facilities, while GSWC and BVES borrowings consist of revolving credit facilities and long-term debt issuances. Interest expense at the water segment increased as compared to the same period in 2025 due primarily to the impact of capitalizing debt costs in 2025 related to certain advice letter projects approved in the latest water general rate case, with no similar item in 2026; partially offset by decreases in overall borrowing levels and average interest rates. Interest expense at the electric services segment increased as compared to the same period in 2025 resulting primarily from overall higher average borrowing levels. The interest expense at the contracted services segment decreased as compared to the same period in 2025 resulting primarily from lower average borrowing levels and lower interest rates. The overall combined average interest rates were 5.04% and 5.14% for the three months ended March 31, 2026 and 2025, respectively.

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Interest Income

For the three months ended March 31, 2026 and 2025, interest income by business segment, including AWR (parent), consisted of the following (dollar amounts in thousands):

	Three Months Ended   March 31, 2026		Three Months Ended   March 31, 2025		$ CHANGE		% CHANGE
Water Services	$	478	$	1,272	$	(794)	(62.4)	%
Electric Services	290		524		(234)		(44.7)	%
Contracted Services	200		199		1		0.5	%
AWR (parent)	8		18		(10)		(55.6)	%
Total interest income	$	976	$	2,013	$	(1,037)	(51.5)	%

For the three months ended March 31, 2026, interest income decreased at both the water and electric segments when compared to the same period in 2025 largely due to decreases in interest income earned on regulatory assets. Regulatory asset balances will decrease as surcharges are approved and implemented. As a result of receiving final CPUC decisions in early 2025 for both the water and electric general rate cases, surcharges were implemented during 2025 to recover balances previously tracked in CPUC-authorized balancing and memorandum accounts.

Other Income and (Expenses), net

For the three months ended March 31, 2026 and 2025, other income and (expenses), net by business segment, including AWR (parent), consisted of the following (dollar amounts in thousands):

	Three Months Ended   March 31, 2026		Three Months Ended   March 31, 2025		$ CHANGE		% CHANGE
Water Services	$	(537)	$	(320)	$	(217)	67.8	%
Electric Services	45		169		(124)		(73.4)	%
Contracted Services	15		(20)		35		(175.0)	%
AWR (parent)	57		—		57		*
Total other income and (expenses), net	$	(420)	$	(171)	$	(249)	145.6	%

    * not meaningful

For the three months ended March 31, 2026, other expense (net of other income) increased largely because of losses of $1.3 million recorded on investments held to fund one of the Company’s retirement plans in 2026, compared to losses of $0.6 million recorded in 2025. The increase in the losses from investments was partially offset by a decrease in the non-service cost components related to GSWC’s benefit plans resulting from changes in actuarial assumptions. However, as a result of GSWC’s two-way pension balancing account authorized by the CPUC, changes in total net periodic benefit costs related to the pension plan have no material impact to earnings.

The decrease in other income for the electric segment is due primarily to a decrease in AFUDC (equity) earned on certain CPUC-approved advice letter projects while under construction compared to same period in 2025 as projects were completed and placed into service.

Income Tax Expense

For the three months ended March 31, 2026 and 2025, income tax expense by business segment, including AWR (parent), consisted of the following (dollar amounts in thousands):

	Three Months Ended   March 31, 2026		Three Months Ended   March 31, 2025		$ CHANGE		% CHANGE
Water Services	$	7,564	$	6,514	$	1,050	16.1	%
Electric Services	884		1,047		(163)		(15.6)	%
Contracted Services	1,889		1,377		512		37.2	%
AWR (parent)	(465)		(476)		11		(2.3)	%
Total income tax expense	$	9,872	$	8,462	$	1,410	16.7	%

AWR’s ETR was 24.8% and 24.0% for the three months ended March 31, 2026 and 2025, respectively. GSWC’s ETR was 25.9% and 24.7% for each of the periods ended March 31, 2026 and 2025, respectively. The increase in the ETRs during the three months ended March 31, 2026 was primarily due to changes in certain flowed-through income taxes at the regulated utilities.

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Critical Accounting Policies and Estimates

Critical accounting policies and estimates are those that are important to the portrayal of Registrant’s financial condition, results of operations and cash flows and require the most difficult, subjective or complex judgments of Registrant’s management. The need to make estimates about the effect of items that are uncertain is what makes these judgments difficult, subjective and/or complex. Management makes subjective judgments about the accounting and regulatory treatment of many items. These judgments are based on Registrant’s historical experience, terms of existing contracts, its observance of trends in the industry, and information available from other outside sources, as appropriate. Actual results may differ from these estimates under different assumptions or conditions. 

The critical accounting policies used in the preparation of Registrant’s financial statements are ones that it believes affect the more significant judgments and estimates used in the preparation of its consolidated financial statements presented in this report and are described in “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Critical Accounting Policies and Estimates” included in Registrant’s Annual Report on Form 10-K for the year ended December 31, 2025 filed with the SEC. There have been no material changes to Registrant’s critical accounting policies.

Liquidity and Capital Resources

AWR

AWR’s regulated business is capital intensive and requires considerable capital resources. A portion of these capital resources is provided by internally generated cash flows from operations. AWR anticipates that interest expense will increase in future periods due to the need for additional external capital to fund construction programs at its regulated utilities and if market interest rates increase. In addition, as the capital investment program continues to increase, AWR and its subsidiaries anticipate they will need to access external financing more often. External financing may also be needed to cover costs incurred in connection with capital investments that are not covered in rates due to delays in obtaining approval of general rate cases by the CPUC.

AWR funds its operating expenses and pays dividends on its outstanding Common Shares primarily through dividends from its wholly owned subsidiaries. The ability of GSWC and BVES to pay dividends to AWR is restricted by California law. Under these restrictions, approximately $937.6 million was available for GSWC to pay dividends to AWR on March 31, 2026. Approximately $121.0 million was available for BVES to pay dividends to AWR as of March 31, 2026. ASUS’s ability to pay dividends to AWR is dependent upon state laws in which each ASUS subsidiary operates, as well as ASUS’s ability to pay dividends under California law.

When necessary, AWR obtains funds from external sources through the capital markets and from bank borrowings. Access to external financing on reasonable terms depends on the credit ratings of AWR and GSWC and current business conditions, including that of the water utility industry in general, as well as conditions in the debt or equity capital markets.

In February 2024, AWR entered into an Equity Distribution Agreement with third-party sales agents, under which AWR may offer and sell Common Shares, from time to time at its sole discretion, through an ATM offering program having an aggregate gross offering price of up to $200 million over a three-year period and pursuant to AWR’s effective shelf registration statement on Form S-3. AWR has used the net proceeds from these sales, after deducting commissions on such sales and offering expenses, for general corporate purposes, including, but not limited to, repayment of debt and making equity contributions to its subsidiaries. During the three months ended March 31, 2026, AWR sold 84,237 Common Shares through this ATM offering program and raised net proceeds of $6.2 million, bringing the total raised through March 31, 2026 to $165.7 million, net of $2.5 million of commissions paid under the terms of the Equity Distribution Agreement. As of March 31, 2026, approximately $34.3 million remained available for sale under the ATM offering program.

In June 2023, AWR and GSWC each entered into credit agreements with an original term of five years provided by a syndicate of banks and financial institutions. Both credit agreements, as amended, are now scheduled to mature in June 2029. As of March 31, 2026, the credit agreements provide AWR and GSWC unsecured revolving credit facilities with borrowing capacities of $195.0 million and $200.0 million, respectively. Under the terms of the credit agreements, as of March 31, 2026, the borrowing capacities for AWR and GSWC may be expanded up to an additional $30.0 million and $75.0 million, respectively, subject to the lenders’ approval. AWR’s credit facility primarily provides support to AWR (parent) and ASUS, while GSWC’s credit agreement provides support to its water operations and capital expenditures. As of March 31, 2026, AWR’s outstanding borrowings under its credit facility of $110.0 million have been classified as non-current liabilities on AWR’s Consolidated Balance Sheet. The CPUC requires GSWC to completely pay off all borrowings under its revolving credit facility within a 24-month period after which GSWC may again borrow under its facility. GSWC’s pay-off period for its credit facility currently ends in November 2027. As of March 31, 2026, there were $22.0 million of outstanding borrowings under GSWC’s facility and have been classified as non-current liabilities in both AWR’s Consolidated Balance Sheet and GSWC’s Balance Sheet.

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BVES has a separate revolving credit facility without a parent guaranty that supports its electric operations and capital expenditures, which provides a borrowing capacity of $65.0 million and matures in December 2028. BVES has an option to expand the borrowing capacity by up to an additional $25.0 million, subject to lender’s approval. BVES’s revolving credit facility is considered a short-term debt arrangement by the CPUC. Therefore, pursuant to the CPUC’s requirements, borrowings under this credit facility are required to be fully paid off within a 24 month period, after which, BVES may borrow under the credit facility again. BVES’s next pay-off period currently ends in April 2028. As of March 31, 2026, there were no outstanding borrowings under BVES’s credit facility.

Our primary sources of liquidity to fund operations continue to be from the recovery of costs charged to customers at our regulated utilities and the collection of payments from the U.S government. We believe that capital investment costs associated with our capital programs at our regulated utilities will continue to be recovered through water and electric rates charged to customers, as well as funds from credit facilities from our regulated utilities. In addition, AWR’s credit facility will continue to be used to support ASUS’s operations and AWR (parent). The long-term capital-intensive nature of our regulated utilities have required us to continually seek future financing opportunities beyond the short-term. Future long-term financing at GSWC and BVES is expected to consist of both long-term debt and equity issuances in order to manage to the CPUC-authorized capital structure. Under the current financing applications authorized by the CPUC, GSWC and BVES have $588.0 million and $82.0 million, respectively, remaining and available under each utility’s authorized applications that provide for long-term financing and which are expected to be used over the next 1-6 years to pay down outstanding borrowings under their respective credit facilities and support operations.

Management believes that AWR’s and GSWC’s sound capital structures and strong credit ratings, combined with its financial discipline, will enable AWR to access the debt and equity markets. However, unpredictable financial market conditions in the future and delays in receiving rate case decisions may limit its access or impact the timing of when to access the market, in which case AWR may choose to temporarily reduce its capital spending. 

AWR’s ability to pay cash dividends on its Common Shares depends primarily upon cash flows from its subsidiaries. AWR intends to continue paying quarterly cash dividends on or about March 1, June 1, September 1 and December 1, subject to earnings and financial conditions, regulatory requirements and such other factors as the Board of Directors may deem relevant. On May 4, 2026, AWR’s Board of Directors approved a second quarter dividend of $0.5040 per share on AWR’s Common Shares. Dividends on the Common Shares will be paid on June 2, 2026 to shareholders of record at the close of business on May 18, 2026. Registrant has paid Common Share dividends every year since 1931 and has increased the dividends received by shareholders each calendar year for 71 consecutive years, which places it in an exclusive group of companies on the New York Stock Exchange that have achieved that result. AWR’s quarterly dividend rate has grown at a compound annual growth rate (“CAGR”) of 8.5% over the last five years since the second quarter of 2021, and has achieved a 10-year CAGR of 8.3% in its calendar year dividend payments through 2025. AWR’s current policy is to achieve a CAGR in the dividend of more than 7% over the long-term.

Cash Flows from Operating Activities:

Cash flows from operating activities have generally provided sufficient cash to fund operating requirements, including a portion of capital expenditures at GSWC and BVES, and construction expenses at ASUS, and to pay dividends. AWR’s future cash flows from operating activities are expected to be affected by a number of factors, including, among other things, utility regulation; delays in receiving approvals of general rate cases, changes in tax law; maintenance expenses; inflation; newly imposed tariffs; compliance with environmental, health and safety standards; production costs; customer growth; per-customer usage of water and electricity; weather and seasonality; conservation efforts; compliance with local governmental requirements, including mandatory restrictions on water use; the customers’ ability to pay utility bills; and required cash contributions to pension and post-retirement plans. Future cash flows from contracted services subsidiaries will depend on new business activities, existing operations, the construction of new and/or replacement infrastructure at military bases, timely economic price and equitable adjustment of prices, and timely collection of payments from the U.S. government and other prime contractors operating at the military bases, and any adjustments arising out of an audit or investigation by federal governmental agencies. For further information regarding the risks faced by Registrant, see Item 1A, Risk Factors, in our annual report on Form 10-K for the period ended December 31, 2025.

ASUS funds its operating expenses primarily through internal operating sources, which include U.S. government funding under 15- and 50-year contracts for operations and maintenance costs and construction activities, as well as investments by, or loans from, AWR. ASUS, in turn, provides funding to its subsidiaries. ASUS’s subsidiaries may also from time to time provide funding to ASUS or other subsidiaries of ASUS.

Cash flows from operating activities are primarily generated by net income, adjusted for non-cash expenses such as depreciation and amortization, and deferred income taxes. Cash generated by operations varies during the year. Net cash provided by operating activities of AWR was $71.6 million for the three months ended March 31, 2026 as compared to $45.1 million for the same period in 2025. The increase in operating cash flows was largely due to the timing of cash receipts and disbursements related to working capital items. In particular, the implementation of new rates and surcharges at our regulated utilities added to

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cash flows from operations. The increase in cash flows from operating activities also resulted from differences at ASUS in the timing of vendor payments and the receipt of cash for construction work at military bases. The billings (and cash receipts) for this construction work generally occur at completion of the work or in accordance with a billing schedule contractually agreed to with the U.S. government and/or other prime contractors. Thus, cash flow from construction-related activities may fluctuate from period to period with such fluctuations representing timing differences of when the work is being performed and when the cash is received for payment of the work. Finally, the timing of income tax payments have also contributed to an increase in operating cash flows.

Cash Flows from Investing Activities:

Net cash used in investing activities was $48.9 million for the three months ended March 31, 2026 as compared to $67.4 million for the same period in 2025, which is mostly related to capital expenditures at the regulated utilities. GSWC and BVES invest capital to provide essential services to their regulated customer bases, while working with the CPUC to have the opportunity to earn a fair rate of return on investment. AWR’s infrastructure investment plan consists of both infrastructure renewal programs (to replace infrastructure, including those to mitigate wildfire risk) and major capital investment projects (to construct new water treatment, supply and delivery facilities and electric facilities). The regulated utilities may also be required from time to time to relocate existing infrastructure in order to accommodate local infrastructure improvement projects. Projected capital expenditures and other investments are subject to periodic review and revision.

For the year 2026, the regulated utilities’ company-funded capital expenditures are estimated to be approximately $185 - $225 million, barring any delays resulting from changes in capital improvement schedules due to unfavorable weather conditions and supply chain issues.

Cash Flows from Financing Activities:

AWR’s financing activities include primarily: (i) the proceeds from the issuance of Common Shares, (ii) the issuance and repayment of long-term debt and notes payable to banks, and (iii) the payment of dividends on Common Shares. In order to finance new infrastructure, GSWC also receives customer advances (net of refunds) for, and contributions in aid of, construction. Borrowings on AWR’s credit facility are primarily used to support AWR (parent) and its contracted services subsidiary, and borrowings on GSWC and BVES’s credit facilities are used to fund GSWC and BVES capital expenditures, respectively, until long-term financing is arranged. AWR may also from time to time make equity contributions to GSWC and to BVES. Overall debt levels are expected to increase to fund the costs of the capital expenditures that will be made by the regulated utilities.

Net cash used by financing activities was $19.5 million for the three months ended March 31, 2026 as compared to cash provided of $16.9 million during the same period in 2025. The decrease in net cash provided by financing activities was due primarily to a decrease in total capital (debt and equity) raised and needed in 2026 as compared to 2025 due, in large part, to an increase in cash flows from operating activities. The change included lower proceeds from the issuance of common shares under AWR’s ATM offering program in 2026 as compared to 2025. For the three months ended March 31, 2026, AWR sold 84,237 Common Shares through its ATM offering program and raised proceeds net of issuance costs of $6.2 million, while during the three months ended March 31, 2025, AWR sold 334,548 Common Shares through its ATM offering program and raised proceeds net of issuance costs of $25.7 million.

In addition, financing activities in 2025 included the issuance of long-term debt of $50.0 million by BVES with a large portion of the proceeds used to pay down outstanding borrowings under its credit facility. During the three months ended March 31, 2026, AWR did not issue any long-term debt and had net payments on its credit facilities of $9.0 million. Credit facilities have been used to support its operations and ongoing capital expenditure programs.

GSWC

GSWC funds its operating expenses, payments on its debt, dividends to AWR on its outstanding common shares, and a portion of its construction expenditures through internal sources. Internal sources of cash flow are provided primarily by retention of a portion of earnings from operating activities. Internal cash generation is influenced by, among other things, factors such as weather patterns, conservation efforts, environmental regulation, litigation, changes in tax law and deferred taxes, changes in supply costs and regulatory decisions affecting GSWC’s ability to recover these supply costs, timing of rate relief, increases in maintenance expenses and capital expenditures, surcharges authorized by the CPUC to enable GSWC to recover expenses previously incurred from customers, and CPUC requirements to refund amounts previously charged to customers. Internal cash flows may also be impacted by delays in receiving payments from GSWC customers. For further information regarding the risks faced by Registrant, see Item 1A, Risk Factors, in our annual report on Form 10-K for the period ended December 31, 2025.

GSWC may, at times, utilize external sources for long-term financing, as well as obtain funds from equity investments from its parent, AWR, to help fund a portion of its operations and construction expenditures. GSWC has its own separate credit agreement that provides for a $200.0 million unsecured revolving credit facility to support GSWC’s operations and capital expenditures. GSWC’s borrowing capacity under this credit agreement may be expanded up to an additional $75.0 million, subject to the lenders’ approval.

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In March 2025, the CPUC issued a final decision in GSWC’s financing application, which among other things, approved GSWC’s request to issue up to $750.0 million of additional long-term debt and equity securities. Under the current financing application authorized by the CPUC, GSWC has $588.0 million remaining and available that provides for long-term financing and which are expected to be used over the next 1 to 6 years to pay down portions of the outstanding borrowings under GSWC’s credit facility and support its operations and capital program.

In addition, GSWC receives advances and contributions from customers, home builders and real estate developers to fund construction necessary to extend service to new areas. Advances for construction are generally refundable at a rate of 2.5% in equal annual installments over 40 years. Utility plant funded by advances and contributions is excluded from rate base. GSWC amortizes contributions in aid of construction at the same composite rate of depreciation for the related property.

Cash Flows from Operating Activities:

Net cash provided by operating activities was $45.2 million for the three months ended March 31, 2026 as compared to $36.9 million for the same period in 2025. The increase in operating cash flow was due primarily to (i) new water rates implemented effective January 1, 2026 that were approved in the latest general rate case proceeding, (ii) the implementation, in May 2025, of the WRAM/MCBA surcharges related to the recovery of all pre-2025 revenue and supply cost activity with the majority to be recovered over 18 months, and (iii) the implementation of other surcharges during the year. The timing of cash receipts and disbursements related to other working capital items also affected the change in net cash provided by operating activities.

Cash Flows from Investing Activities:

Net cash used in investing activities was $42.0 million for the three months ended March 31, 2026 as compared to $57.7 million for the same period in 2025, which is mostly related to spending under GSWC’s infrastructure investment plans that are consistent with capital budgets authorized in its general rate cases.

Cash Flows from Financing Activities:

Net cash used by financing activities was $7.5 million for the three months ended March 31, 2026 as compared to $18.2 million net cash provided for the same period in 2025. The change in net cash used by financing activities in 2026 is due primarily to dividends paid to AWR of $19.7 million as compared to no dividend paid during the same period in 2025. GSWC’s net cash provided by financing activities was also lower due to an overall decrease in borrowings needed in 2026 under its credit facility as compared to 2025 resulting, in part, from an increase in cash flows from operating activities. During the three months ended March 31, 2026, GSWC had net borrowings on its credit facility of $9.0 million, while during the three months ended March 31, 2025, GSWC had net borrowings on its credit facility of $19.0 million.

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Contractual Obligations and Other Commitments

Registrant has various contractual obligations, which are recorded as liabilities in the consolidated financial statements. Other items, such as certain purchase commitments, are not recognized as liabilities in the consolidated financial statements but are required to be disclosed. In addition to contractual maturities, Registrant has certain debt instruments that contain an annual sinking fund or other principal payments. Registrant believes that it will be able to refinance debt instruments at their maturity through public issuance, or private placement, of debt or equity. Annual payments to service debt are generally made from cash flows from operations. 

See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Contractual Obligations and Commitments” section of the Registrant’s Form 10-K for the year ended December 31, 2025 filed with the SEC for a discussion of contractual obligations and other commitments. Besides BVES’s debt issuance described above, there have been no material changes to Registrant’s contractual obligations and other commitments.

Contracted Services

Under the terms of the contracts with the U.S. government, each contract’s price is subject to an EPA on an annual basis. In the event that ASUS (i) is managing more assets at specific military bases than were included in the U.S. government’s request for proposal, (ii) is managing assets that are in substandard condition as compared to what was disclosed in the request for proposal, (iii) prudently incurs costs not contemplated under the terms of the contract, and/or (iv) becomes subject to new regulatory requirements, such as more stringent water-quality standards, ASUS is permitted to file, and has filed, REAs. The timely filing for and receipt of EPAs and/or REAs continues to be critical in order for ASUS’s subsidiaries to recover increasing costs of operating, maintaining, renewing and replacing the water and/or wastewater systems at the military bases it serves.

During sequestration or automatic spending cuts, and also amid the U.S. government shutdown, the subsidiaries of ASUS have not experienced and are not expected to experience any earnings impact to their existing operations and maintenance and renewal and replacement services, as utility privatization contracts are an “excepted service.” With the expiration of sequestration, similar issues including further sequestration pursuant to the Balanced Budget and Emergency Deficit Control Act may arise as part of the fiscal uncertainty and/or future debt-ceiling limits imposed by Congress. Management expects that any future impact on ASUS and its operations through its subsidiaries will likely be limited to (a) the timing of funding to pay for services rendered, (b) delays in the processing of EPAs and/or REAs, (c) the timing of the issuance of contract modifications for new construction work not already funded by the U.S. government, (d) the timing of construction work associated with delays in receiving construction permits from furloughs at government agencies, and/or (e) delays in solicitation for and/or awarding of new contracts under the Department of Defense contracting programs. In the event the U.S. government shutdown extends for an unprecedented and much longer period, ASUS’s liquidity and earnings could be impacted.

At times, the Defense Contract Auditing Agency and/or the Defense Contract Management Agency may, at the request of a contracting officer, perform audits/reviews of contractors for compliance with certain government guidance and regulations, such as the Federal Acquisition Regulations and Defense Federal Acquisition Regulation Supplements. Certain audit/review findings, such as system deficiencies for government-contract-business-system requirements, may result in delays in the resolution of filings submitted to and/or the ability to file new proposals with the U.S. government.

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Regulatory Matters

An update on various regulatory matters is included in the discussion under the section titled “Overview” in this Form 10-Q’s “Management’s Discussion and Analysis of Financial Condition and Results of Operations.” The discussion below focuses on key regulatory matters and developments.

General Rate Cases and Changes in Rates During 2026

Water Segment:

Rates that GSWC is authorized to charge are determined by the CPUC in general rate cases. In January 2025, the CPUC issued a final decision in GSWC’s latest general rate case proceeding that will set new rates for the years 2025 - 2027. In December 2025, GSWC received approval from the CPUC to implement its full second-year rate increases, effective January 1, 2026, that will result in higher adopted operating revenues less water supply cost for 2026 of approximately $32.0 million compared to 2025’s adopted operating revenues less water supply cost. Included in the 2026 increase is nearly $11 million related to advice letter capital projects. The assets from the advice letter projects and the related amounts in a memorandum account were added to the adopted rate base for inclusion in the revenue requirement effective January 1, 2026.

Electric Segment:

Rates that BVES is authorized to charge are determined by the CPUC in general rate cases. In January 2025, the CPUC issued a final decision in BVES’s general rate case proceeding that set new rates for the years 2023 - 2026, retroactive to January 1, 2023. Among other things, the final decision provided for an increase in adopted operating revenues of $3.3 million in 2026. Accordingly, new electric rates for 2026, which is the fourth year in the rate cycle, have been implemented and reflected in BVES results for the three months ended March 31, 2026.

See also “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Regulatory Matters” section of the Registrant’s Form 10-K for the year-ended December 31, 2025 filed with the SEC for a discussion of other regulatory matters.

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Environmental Matters

AWR’s subsidiaries are subject to stringent environmental regulations. GSWC and ASUS are required to comply with the safe drinking water standards established by the U.S. EPA. GSWC is also required to comply with the safe drinking water standards by the Division of Drinking Water (“DDW”), under the SWRCB. The DDW, acting on behalf of the U.S. EPA, administers the U.S. EPA’s program in California. Similarly, ASUS is required to comply with the drinking water standards that are administered by the relevant state agencies in the states in which it operates. The U.S. EPA regulates contaminants that may have adverse health effects that are known or likely to occur at levels of public health concern, and the regulation of which will provide a meaningful opportunity for health risk reduction.

Per- and Polyfluoroalkyl Substances (“PFAS”) Contamination Litigation Proceeds Memorandum Account:

GSWC has been a plaintiff in various class action lawsuits (against 3M Company, DuPont, and others) related to PFAS contamination affecting public water systems. A class settlement agreement among Tyco Fire Products LP (“Tyco”) and the class of eligible public water systems was entered into on April 12, 2024 and resolved any claims for PFAS contamination with Tyco. The class settlement agreement between the parties was approved by an order issued by the Federal District Court of South Carolina on November 22, 2024. As a result of the settlement, GSWC was notified on April 8, 2026 that it will receive from Tyco approximately $2.2 million, net of legal fees.

Settlement proceeds received by GSWC have been and may be used for future capital investments or operations and maintenance expenses related to PFAS water contamination to its water systems or any PFAS related litigation against its water systems, which benefit GSWC’s customers. The CPUC has authorized GSWC to track in a memorandum account the settlement payments received by GSWC from lawsuits related to PFAS contamination in its water systems, which include proceeds received for participation in class action lawsuits. The amounts in the memorandum account have been recorded as a regulatory liability and have been used, and will continue to be used in the future, to offset incremental investments in replacement and treatment of property, as well as operations and maintenance expenses and other direct expenses related to PFAS contamination. As of March 31, 2026, GSWC has a $10.4 million regulatory liability related to the PFAS contamination litigation proceeds memorandum account.

GSWC continues to monitor contaminant levels for PFAS compounds in accordance with final U.S. EPA regulations. Proceeds received from the defendants will not be sufficient to pay for all PFAS-related liabilities that will ultimately be incurred by GSWC, whether related to capital investments, operation and maintenance expenses, or litigation brought against GSWC. However, the CPUC has also authorized GSWC to track incremental expenses, including laboratory testing and monitoring costs, customer and public notification costs and chemical and operating treatment costs, incurred as a result of PFAS contamination in a separate memorandum account to be filed with the CPUC for future recovery.

See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Environmental Matters” section of the Registrant’s Form 10-K for the year-ended December 31, 2025 filed with the SEC for a discussion of environmental matters applicable to AWR and its subsidiaries.

Water Supply

Water year 2025-26 (“WY2026”), which began on October 1, 2025, has resulted in average precipitation, above average reservoir levels, and snowpack peaking early in the season in mid-February. Drier conditions experienced since February have resulted in below average snow levels. As of April 2, 2026, the average level for the State’s major reservoirs is at 117% of the historical average for this time of the year. As of April 28, 2026, the U.S. Drought Monitor reported that none of California was considered in a “Severe Drought” condition and only 5% was in “Moderate Drought” condition, as compared to a year ago where nearly 25% of California was considered in “Severe Drought” and 8% in “Extreme Drought.” Changes in weather patterns will continue to impact drought conditions in California.

The State Water Project (“SWP”) allocation for WY2026 increased from 10% to 30% as of January 29, 2026. Invasive golden mussels that were detected in the SWP conveyance network in mid-2025 have impacted groundwater basin spreading operations that are critical water recharge facilities used to manage groundwater extractions in Southern California. As such, the Los Angeles County Department of Public Works, which owns and operates key spreading facilities in the San Gabriel Basin have already placed a moratorium on allowing SWP into their spreading basins. Basin agencies are working on mitigation plans to address this impact to basin management.

Prolonged drought conditions continue in the Colorado River System, which has experienced historically low reservoir levels in Lake Mead and Lake Powell since 2023. Reservoir levels for Lake Mead and Lake Powell are at only 33% and 24% of capacity, respectively, as of the end of March 2026. Projected inflow scenarios for the Colorado River at continued low flow levels are expected and a “Level 1 Shortage Condition” will continue into 2027 that will impose mandatory water reductions to the lower Colorado River States. Urgent action to reduce water demand on the lower river by 2 to 4 million acre feet annually has been requested by the U.S. Bureau of Reclamation (the “Bureau”), which resulted in a multi-year agreement known as the “California Colorado River Contractor Forbearance Agreement for 2024-2026” by the Imperial Irrigation District, Coachella

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Valley Water District, Metropolitan Water District (“MWD”), Palo Verde Irrigation District and the City of Needles. Operational agreements on how the Colorado River is managed will expire in Fall 2026. On April 17, 2026, the Bureau announced that it will add approximately 2.48 million acre feet of water to Lake Powell by moving water from the upstream Flaming Gorge Reservoir and by reducing releases from Lake Powell. These actions are expected to increase Lake Powell’s elevation, but will likely accelerate the downstream decline of Lake Mead, with the potential for up to an additional 40% reduction to Hoover Dam’s hydropower generating capacity as early as this fall. Reclamation and its lower basin partners are collaborating to conserve water in Lake Mead and maintain its water levels, even as releases from Lake Powell are planned to decrease. GSWC will continue to monitor developments related to the Colorado River System and assess its impact on MWD and GSWC’s systems that utilized water sources provided by MWD member agencies.

See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Water Supply” section of Registrant’s Form 10-K for the year-ended December 31, 2025 filed with the SEC for a discussion of water supply issues. The discussion above focuses on significant matters and changes since December 31, 2025.

Other Climate Change Matters

Climate change is one area that we focus on as we develop and execute our business strategy and financial planning, both in the short- and long-term. The risks posed by climate variability increase the need for us to plan for and address supply resiliency. Climate change has also impacted electric utilities in California increasing wildfire risks and requires the need to develop robust wildfire mitigation plans. We address these and other climate change risks by planning, assessing, mitigating, and investing in our infrastructure for the long-term benefit of our communities. See “Item 1. Business Overview” section of Registrant’s Form 10-K for the year ended December 31, 2025 filed with the SEC for a discussion of climate change planning, risks and opportunities.

Cybersecurity Matters

Cyberattacks represent a threat to water, wastewater and electric utility systems and thereby the safety and security of our communities. We continue to increase our investments in information and operational technology to monitor and address threats and attempted cyberattacks to improve our posture in addressing security vulnerabilities. See “Item 1A. Risk Factors” and “Item 1C. Cybersecurity” section of Registrant’s Form 10-K for the year-ended December 31, 2025 filed with the SEC for a discussion of cybersecurity matters.

New Accounting Pronouncements

Registrant is subject to newly issued requirements as well as changes in existing requirements issued by the Financial Accounting Standards Board. See Note 1 to the Financial Statements.

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Item 3. Quantitative and Qualitative Disclosures About Market Risk

Registrant is exposed to certain market risks, including fluctuations in interest rates, commodity price risk primarily relating to changes in the market price of electricity at BVES, and other economic conditions. Market risk is the potential loss arising from adverse changes in prevailing market rates and prices.

The quantitative and qualitative disclosures about market risk are discussed in Item 7A-Quantitative and Qualitative Disclosures About Market Risk, contained in Registrant’s Annual Report on Form 10-K for the year ended December 31, 2025 filed with the SEC.

There have been no material changes to our quantitative and qualitative disclosures about market risk from what was previously disclosed in Registrant’s Annual Report on Form 10-K for the year ended December 31, 2025 filed with the SEC.

Item 4. Controls and Procedures

(a) Evaluation of Disclosure Controls and Procedures

As required by Rule 13a-15(b) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), Registrant has carried out an evaluation, under the supervision and with the participation of its management, including its Chief Executive Officer (“CEO”) and its Chief Financial Officer (“CFO”), of the effectiveness, as of the end of the fiscal quarter covered by this report, of the design and operation of Registrant’s “disclosure controls and procedures” as defined in Rule 13a-15(e) and 15d-15(e) promulgated by the SEC under the Exchange Act. Based upon that evaluation, the CEO and the CFO concluded that Registrant’s disclosure controls and procedures, as of the end of such fiscal quarter, were adequate and effective to ensure that information required to be disclosed by Registrant in the reports that Registrant files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to Registrant’s management, including its CEO and CFO, as appropriate to allow timely decisions regarding required disclosure.

(b) Changes in Internal Controls over Financial Reporting

There has been no change in Registrant’s internal control over financial reporting during the quarter ended March 31, 2026, that has materially affected or is reasonably likely to materially affect Registrant’s internal control over financial reporting.

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PART II

Item 1. Legal Proceedings

Registrant is subject to ordinary routine litigation incidental to its business that may include claims for compensatory and punitive damages. No legal proceedings are pending that management believes to be material. Management believes that rate recovery, proper insurance coverage and reserves are in place to insure against, among other things, property, general liability, employment, and workers’ compensation claims incurred in the ordinary course of business. Insurance coverage may not cover certain claims involving punitive damages.

Item 1A. Risk Factors

There have been no significant changes in the risk factors disclosed in our 2025 Annual Report on Form 10-K filed with the SEC.

Item 2. Unregistered Sales of Equity Securities, Use of Proceeds, and Issuer Purchases of Equity Securities

The following table provides information about repurchases of Common Shares by AWR during the first quarter of 2026:

Period	Total Number of Shares Purchased		Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs (1)	Maximum Number of Shares That May Yet Be Purchased under the Plans or Programs (1)(3)
January 1 - 31, 2026	248		$	74.17	—	—
February 1 - 28, 2026	13,538		$	72.44	—	—
March 1 - 31, 2026	3,646		$	75.98	—	—
Total	17,432	(2)	$	73.20	—

(1)      None of the Common Shares were purchased pursuant to any publicly announced stock repurchase program.

(2)    These Common Shares were acquired on the open market for employees pursuant to GSWC’s 401(k) plan and for participants in the Common Share Purchase and Dividend Reinvestment Plan.

(3)    Neither the 401(k) plan nor the Common Share Purchase and Dividend Reinvestment Plan contain a maximum number of Common Shares that may be purchased in the open market.

Item 3. Defaults Upon Senior Securities

None

Item 4. Mine Safety Disclosure

Not applicable

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Item 5. Other Information

(a)    On May 4, 2026, AWR’s Board of Directors approved a second quarter dividend of $0.5040 per share on AWR’s Common Shares. Dividends on the Common Shares will be paid on June 2, 2026 to shareholders of record at the close of business on May 18, 2026.

(b)    There have been no material changes during the first quarter of 2026 to the procedures by which shareholders may nominate persons to the Board of Directors of AWR.

(c)    Certain of our officers have made, and may from time to time make, elections to participate in our 401(k) plan or our common share purchase and dividend reinvestment plan, which may be designed to satisfy the affirmative defense conditions of Rule 10b5-1 under the Exchange Act or may constitute non-Rule 10b5-1 trading arrangements (as defined in Item 408(c) of Regulation S-K). During the quarter ended March 31, 2026, no officer or director adopted, terminated, or modified any Rule 10b5-1 plans or non-Rule 10b5-1 plans.

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Item 6. Exhibits
(a) The following documents are filed as Exhibits to this report:
10.1	2026 Short-Term Incentive Program incorporated by reference to Exhibit 10.1 of Registrant’s Form 8-K filed on March 27, 2026 (2)
10.2	Form of Award Agreement for 2026 Short-Term Incentive Program incorporated by reference to Exhibit 10.2 of Registrant’s Form 8-K filed on March 27, 2026 (2)
10.3	Form of 2026 Performance Award Agreement incorporated by reference to Exhibit 10.1 of the Registrant’s Form 8-K filed on March 13, 2026 (2)
31.1	Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 for AWR (1)
31.1.1	Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 for GSWC (1)
31.2	Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 for AWR (1)
31.2.1	Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 for GSWC (1)
32.1	Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (3)
32.2	Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (3)
101.INS	Inline XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCH	Inline XBRL Taxonomy Extension Schema (3)
101.CAL	Inline XBRL Taxonomy Extension Calculation Linkbase (3)
101.DEF	Inline XBRL Taxonomy Extension Definition Linkbase (3)
101.LAB	Inline XBRL Taxonomy Extension Label Linkbase (3)
101.PRE	Inline XBRL Taxonomy Extension Presentation Linkbase (3)
104	Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

(1)         Filed concurrently herewith 

(2)         Management contract or compensatory arrangement 

(3)         Furnished concurrently herewith

45

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized and as its principal financial officer.

	AMERICAN STATES WATER COMPANY (“AWR”):
By:	/s/ EVA G. TANG
	Eva G. Tang
	Senior Vice President - Finance, Chief Financial
	Officer, Corporate Secretary and Treasurer
	GOLDEN STATE WATER COMPANY (“GSWC”):
By:	/s/ EVA G. TANG
	Eva G. Tang
	Senior Vice President - Finance, Chief Financial
	Officer and Secretary
Date:	May 6, 2026

46

EX-31.1

Exhibit 31.1

Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 for AWR

I, Robert J. Sprowls, certify that:

1)I have reviewed this quarterly report on Form 10-Q for the period ended March 31, 2026 of American States Water Company (referred to as “the Registrant”);

2)Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3)Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Registrant as of, and for, the periods presented in this report;

4)The Registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Registrant and have:

a)designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)evaluated the effectiveness of the Registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)disclosed in this report any change in the Registrant’s internal control over financial reporting that occurred during the Registrant’s most recent fiscal quarter (the Registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Registrant’s internal control over financial reporting.

5)The Registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Registrant’s auditors and the audit committee of the Registrant’s board of directors (or persons performing the equivalent function):

a)all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Registrant’s ability to record, process, summarize and report financial information; and

b)any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant’s internal controls over financial reporting.

Dated:	May 6, 2026	By:	/s/ ROBERT J. SPROWLS
			Robert J. Sprowls
			President and Chief Executive Officer

EX-31.1 1

Exhibit 31.1.1

Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 for GSWC

I, Robert J. Sprowls, certify that:

1)I have reviewed this quarterly report on Form 10-Q for the period ended March 31, 2026 of Golden State Water Company (referred to as “GSWC”);

2)Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3)Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of GSWC as of, and for, the periods presented in this report;

4)GSWC’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for GSWC and have:

a)designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to GSWC, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)evaluated the effectiveness of GSWC’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)disclosed in this report any change in GSWC’s internal control over financial reporting that occurred during GSWC’s most recent fiscal quarter (GSWC’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, GSWC’s internal control over financial reporting.

5)GSWC’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to GSWC’s auditors and the audit committee of GSWC’s board of directors (or persons performing the equivalent function):

a)all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect GSWC’s ability to record, process, summarize and report financial information; and

b)any fraud, whether or not material, that involves management or other employees who have a significant role in GSWC’s internal controls over financial reporting.

Dated:	May 6, 2026	By:	/s/ ROBERT J. SPROWLS
			Robert J. Sprowls
			President and Chief Executive Officer

EX-31.2

Exhibit 31.2

Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 for AWR

I, Eva G. Tang, certify that:

1)I have reviewed this quarterly report on Form 10-Q for the period ended March 31, 2026 of American States Water Company (referred to as “the Registrant”);

2)Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3)Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Registrant as of, and for, the periods presented in this report;

4)The Registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Registrant and have:

a)designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)evaluated the effectiveness of the Registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)disclosed in this report any change in the Registrant’s internal control over financial reporting that occurred during the Registrant’s most recent fiscal quarter (the Registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Registrant’s internal control over financial reporting.

5)The Registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Registrant’s auditors and the audit committee of the Registrant’s board of directors (or persons performing the equivalent function):

a)all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Registrant’s ability to record, process, summarize and report financial information; and

b)any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant’s internal controls over financial reporting.

Dated:	May 6, 2026	By:	/s/ EVA G. TANG
			Eva G. Tang
			Senior Vice President-Finance, Chief Financial
			Officer, Corporate Secretary and Treasurer

EX-31.2 1

Exhibit 31.2.1

 Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 for GSWC

I, Eva G. Tang, certify that:

1)I have reviewed this quarterly report on Form 10-Q for the period ended March 31, 2026 of Golden State Water Company (referred to as “GSWC”);

2)Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3)Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of GSWC as of, and for, the periods presented in this report;

4)GSWC’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for GSWC and have:

a)designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to GSWC, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)evaluated the effectiveness of GSWC’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)disclosed in this report any change in GSWC’s internal control over financial reporting that occurred during GSWC’s most recent fiscal quarter (GSWC’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, GSWC’s internal control over financial reporting.

5)GSWC’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to GSWC’s auditors and the audit committee of GSWC’s board of directors (or persons performing the equivalent function):

a)all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect GSWC’s ability to record, process, summarize and report financial information; and

b)any fraud, whether or not material, that involves management or other employees who have a significant role in GSWC’s internal controls over financial reporting.

Dated:	May 6, 2026	By:	/s/ EVA G. TANG
			Eva G. Tang
			Senior Vice President-Finance, Chief Financial
			Officer and Secretary

EX-32.1

Exhibit 32.1

Certification pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

(18 U.S.C. Section 1350)

In connection with the Quarterly Report of American States Water Company and Golden State Water Company (the “Registrant”) on Form 10-Q for the quarter ended March 31, 2026, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Robert J. Sprowls, Chief Executive Officer of the Registrant, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

(1)The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.

/s/ ROBERT J. SPROWLS
Robert J. Sprowls
President and Chief Executive Officer
Date:	May 6, 2026

EX-32.2

Exhibit 32.2

Certification pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

(18 U.S.C. Section 1350)

In connection with the Quarterly Report of American States Water Company and Golden State Water Company (the “Registrant”) on Form 10-Q for the quarter ended March 31, 2026, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Eva G. Tang, Chief Financial Officer of the Registrant, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

(1)The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.

/s/ EVA G. TANG
Eva G. Tang
Senior Vice President-Finance, Chief Financial Officer,
Corporate Secretary and Treasurer
Date:	May 6, 2026

XML

Cover - shares	3 Months Ended
	Mar. 31, 2026	May 05, 2026
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2026
Document Transition Report	false
Entity File Number	001-14431
Entity Registrant Name	American States Water Co
Entity Incorporation, State or Country Code	CA
Entity Tax Identification Number	95-4676679
Entity Address, Address Line One	630 E. Foothill Blvd
Entity Address, City or Town	San Dimas
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	91773-1212
City Area Code	909
Local Phone Number	394-3600
Title of 12(b) Security	Common shares
Trading Symbol	AWR
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		39,192,653
Entity Central Index Key	0001056903
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2026
Document Fiscal Period Focus	Q1
GOLDEN STATE WATER COMPANY
Entity Information [Line Items]
Entity File Number	001-12008
Entity Registrant Name	Golden State Water Co
Entity Incorporation, State or Country Code	CA
Entity Tax Identification Number	95-1243678
Entity Address, Address Line One	630 E. Foothill Blvd
Entity Address, City or Town	San Dimas
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	91773-1212
City Area Code	909
Local Phone Number	394-3600
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		178.3836
Entity Central Index Key	0000092116
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2026
Document Fiscal Period Focus	Q1

XML

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Property, Plant and Equipment
Regulated utility plant, at cost	$ 2,941,280	$ 2,899,564
Non-utility property, at cost	51,678	50,422
Total	2,992,958	2,949,986
Less - accumulated depreciation	(663,265)	(653,667)
Net property, plant and equipment	2,329,693	2,296,319
Property, Plant and Equipment, Other, Net [Abstract]
Other property and investments	57,257	58,664
Current Assets
Cash and cash equivalents	22,155	18,824
Accounts receivable - customers, less allowance for doubtful accounts	39,741	38,321
Unbilled receivable	32,161	26,621
Receivable from the U.S. government (Note 2)	31,890	46,400
Other accounts receivable, less allowance for doubtful accounts	4,246	6,127
Materials and supplies	16,647	16,406
Regulatory assets — current	27,597	39,396
Prepayments and other current assets	14,252	7,551
Contract assets (Note 2)	32,667	31,428
Total current assets	221,356	231,074
Other Assets
Unbilled revenue — receivable from the U.S. government (Note 2)	961	1,258
Receivable from the U.S. government (Note 2)	25,538	27,660
Contract assets (Note 2)	248	79
Operating lease right-of-use assets	7,244	6,093
Regulatory assets	28,037	30,073
Other	63,806	63,872
Total other assets	125,834	129,035
Total Assets	2,734,140	2,715,092
Capitalization
Common shares, no par value	433,238	425,153
Retained earnings	630,607	620,428
Total common shareholders’ equity	1,063,845	1,045,581
Long-term debt	782,739	782,700
Total capitalization	1,846,584	1,828,281
Current Liabilities
Long-term debt — current	8,214	8,209
Accounts payable	79,406	86,021
Income taxes payable	11,718	1,169
Accrued other taxes	9,745	12,871
Accrued employee expenses	19,874	16,193
Accrued interest	11,499	9,545
Contract liabilities (Note 2)	11,618	11,735
Operating lease liabilities	2,260	2,062
Purchase power contract derivative at fair value (Note 5)	15,708	15,503
Other	11,555	11,304
Total current liabilities	181,597	174,612
Other Credits
Notes payable to banks	132,000	141,000
Advances for construction	81,656	77,976
Contributions in aid of construction – net	180,615	179,277
Deferred income taxes	195,288	194,121
Regulatory liabilities	55,542	60,205
Unamortized investment tax credits	856	873
Accrued pension and other postretirement benefits	36,807	36,557
Operating lease liabilities	5,342	4,406
Other	17,853	17,784
Total other credits	705,959	712,199
Commitments and Contingencies (Note 9)
Total Capitalization and Liabilities	2,734,140	2,715,092
GSWC
Property, Plant and Equipment
Total	2,687,052	2,648,213
Less - accumulated depreciation	(572,750)	(564,529)
Net property, plant and equipment	2,114,302	2,083,684
Property, Plant and Equipment, Other, Net [Abstract]
Other property and investments	54,425	55,829
Current Assets
Cash and cash equivalents	5,562	9,964
Accounts receivable - customers, less allowance for doubtful accounts	33,715	33,212
Unbilled receivable	22,073	20,607
Other accounts receivable, less allowance for doubtful accounts	1,737	2,767
Income taxes receivable from Parent	0	2,555
Materials and supplies	9,213	9,127
Regulatory assets — current	13,754	23,211
Prepayments and other current assets	9,882	6,365
Total current assets	97,318	109,251
Other Assets
Operating lease right-of-use assets	7,031	5,856
Other	61,234	61,242
Total other assets	68,265	67,098
Total Assets	2,334,310	2,315,862
Capitalization
Common shares, no par value	480,430	478,494
Retained earnings	457,163	455,243
Total common shareholders’ equity	937,593	933,737
Long-term debt	698,082	698,060
Total capitalization	1,635,675	1,631,797
Current Liabilities
Long-term debt — current	8,214	8,209
Accounts payable	63,166	67,426
Income taxes payable	5,425	0
Accrued other taxes	6,932	10,322
Accrued employee expenses	15,412	12,847
Accrued interest	10,109	7,738
Operating lease liabilities	2,163	1,967
Other	10,824	10,762
Total current liabilities	122,245	119,271
Other Credits
Notes payable to banks	22,000	13,000
Advances for construction	81,636	77,956
Contributions in aid of construction – net	180,615	179,277
Deferred income taxes	178,317	177,291
Regulatory liabilities	55,542	60,205
Unamortized investment tax credits	856	873
Accrued pension and other postretirement benefits	36,161	35,948
Operating lease liabilities	5,230	4,268
Other	16,033	15,976
Total other credits	576,390	564,794
Commitments and Contingencies (Note 9)
Total Capitalization and Liabilities	2,334,310	2,315,862
GSWC | Related Party
Current Assets
Receivable from affiliate	$ 1,382	$ 1,443

XML

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Dec. 31, 2025
Accounts Receivable, allowance for doubtful accounts	$ 3,637	$ 3,642
Other accounts receivable, allowance for doubtful accounts	$ 131	$ 131
Common Stock, Shares Authorized (in shares)	60,000,000	60,000,000
Common Stock, Par Value (in usd per share)	$ 0	$ 0
Common Stock, Shares, Outstanding (in shares)	39,192,653	39,082,470
Common Stock Shares Issued Not Disclosed	true
GOLDEN STATE WATER COMPANY
Accounts Receivable, allowance for doubtful accounts	$ 3,288	$ 3,233
Other accounts receivable, allowance for doubtful accounts	$ 131	$ 131
Common Stock, Shares Authorized (in shares)	1,000	1,000
Common Stock, Par Value (in usd per share)	$ 0	$ 0
Common Stock, Shares, Outstanding (in shares)	178.3836	178.3836

XML

CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Operating Revenues
Water	$ 113,110	$ 102,003
Electric	18,657	15,002
Contracted services	37,424	31,008
Total operating revenues	169,191	148,013
Operating Expenses
Water purchased	21,360	16,308
Power purchased for pumping	3,297	3,149
Groundwater production assessment	5,527	5,679
Power purchased for resale	4,792	6,068
Supply cost balancing accounts	(318)	(1,716)
Other operation	11,268	10,490
Administrative and general	28,154	26,875
Depreciation and amortization	12,684	11,582
Maintenance	5,700	4,147
Property and other taxes	8,023	6,952
ASUS construction	17,333	12,933
Utilities Operating Expense, Total	117,820	102,467
Operating Income	51,371	45,546
Other Income and Expenses
Interest expense	(12,107)	(12,082)
Interest income	976	2,013
Other, net	(420)	(171)
Total other income and expenses, net	(11,551)	(10,240)
Income before income tax expense	39,820	35,306
Income tax expense	9,872	8,462
Net Income	$ 29,948	$ 26,844
Basic Earnings Per Common Share
Weighted Average Number of Common Shares Outstanding (in shares)	39,111	38,253
Basic Earnings Per Common Share (in dollars per share)	$ 0.76	$ 0.70
Fully Diluted Earnings Per Share
Weighted Average Number of Diluted Shares (in shares)	39,210	38,354
Fully Diluted Earnings Per Common Share (in dollars per share)	$ 0.76	$ 0.70
Dividends declared per common share (in dollars per share)	$ 0.5040	$ 0.4655
GOLDEN STATE WATER COMPANY
Operating Revenues
Water	$ 113,110	$ 102,003
Total operating revenues	113,110	102,003
Operating Expenses
Water purchased	21,360	16,308
Power purchased for pumping	3,297	3,149
Groundwater production assessment	5,527	5,679
Supply cost balancing accounts	77	287
Other operation	7,144	6,675
Administrative and general	17,754	17,657
Depreciation and amortization	10,659	9,824
Maintenance	2,074	2,004
Property and other taxes	6,520	5,624
Utilities Operating Expense, Total	74,412	67,207
Operating Income	38,698	34,796
Other Income and Expenses
Interest expense	(9,392)	(9,328)
Interest income	478	1,272
Other, net	(537)	(320)
Total other income and expenses, net	(9,451)	(8,376)
Income before income tax expense	29,247	26,420
Income tax expense	7,564	6,514
Net Income	$ 21,683	$ 19,906

XML

STATEMENTS OF CHANGES IN COMMON SHAREHOLDER'S EQUITY - USD ($) $ in Thousands	Total	Common Stock Including Additional Paid in Capital	Retained Earnings	GOLDEN STATE WATER COMPANY	GOLDEN STATE WATER COMPANY Common Stock Including Additional Paid in Capital	GOLDEN STATE WATER COMPANY Retained Earnings
Beginning Balance (in shares) at Dec. 31, 2024		38,151,000			173.7586
Beginning balances at Dec. 31, 2024	$ 920,051	$ 355,143	$ 564,908	$ 805,833	$ 413,797	$ 392,036
Add:
Net income	26,844		26,844	19,906		19,906
Issuance of Common Shares from an at-the-market program, net of issuance costs (in shares)		335,000
Issuance of Common Shares from an at-the-market program, net of issuance costs	$ 25,648	$ 25,648
Issuances of Common Shares under stock-based compensation plans (in shares)	23,014	23,000
Issuances of Common Shares under stock-based compensation plans	$ 0	$ 0
Stock-based compensation, net of taxes paid from shares withheld from employees related to net share settlements (Note 4)	1,626	1,626		1,634	1,634
Dividend equivalent rights on stock-based awards not paid in cash	63	$ 63		57	$ 57
Deduct:
Dividends on Common Shares	17,762		17,762
Dividend equivalent rights on stock-based awards not paid in cash	63		63	57		57
Ending Balances (in shares) at Mar. 31, 2025		38,509,000			173.7586
Ending balances at Mar. 31, 2025	956,407	$ 382,480	573,927	827,373	$ 415,488	411,885
Beginning Balance (in shares) at Dec. 31, 2025		39,082,000			178.3836
Beginning balances at Dec. 31, 2025	1,045,581	$ 425,153	620,428	933,737	$ 478,494	455,243
Add:
Net income	29,948		29,948	21,683		21,683
Issuance of Common Shares from an at-the-market program, net of issuance costs (in shares)		84,000
Issuance of Common Shares from an at-the-market program, net of issuance costs	$ 6,185	$ 6,185
Issuances of Common Shares under stock-based compensation plans (in shares)	25,946	26,000
Issuances of Common Shares under stock-based compensation plans	$ 0	$ 0
Stock-based compensation, net of taxes paid from shares withheld from employees related to net share settlements (Note 4)	1,830	1,830		1,873	1,873
Dividend equivalent rights on stock-based awards not paid in cash	70	$ 70		63	$ 63
Deduct:
Dividends on Common Shares	19,699		19,699	19,700		19,700
Dividend equivalent rights on stock-based awards not paid in cash	70		70	63		63
Ending Balances (in shares) at Mar. 31, 2026		39,192,000			178.3836
Ending balances at Mar. 31, 2026	$ 1,063,845	$ 433,238	$ 630,607	$ 937,593	$ 480,430	$ 457,163

XML

CONSOLIDATED STATEMENTS OF CASH FLOW - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Cash Flows From Operating Activities:
Net income	$ 29,948	$ 26,844
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	12,990	11,844
Provision for doubtful accounts	495	581
Deferred income taxes and investment tax credits	(720)	2,153
Stock-based compensation expense	2,953	2,723
(Gain) loss on investments held in a trust	1,272	586
Other — net	254	233
Changes in assets and liabilities:
Accounts receivable — customers	(1,915)	3,105
Unbilled receivable	(5,243)	(6,576)
Other receivables	1,881	2,626
Receivables from the U.S. government	16,632	5,186
Materials and supplies	(241)	(376)
Prepayments and other assets	(6,126)	(5,975)
Contract assets	(1,408)	(2,900)
Regulatory assets/liabilities	11,802	1,143
Accounts payable	(3,306)	(2,387)
Income taxes receivable/payable	10,549	6,310
Contract liabilities	(117)	2,085
Accrued pension and other postretirement benefits	(193)	434
Other liabilities	2,131	(2,578)
Net cash provided (used)	71,638	45,061
Cash Flows From Investing Activities:
Capital expenditures	(49,051)	(67,565)
Other investing activities	195	194
Net cash provided (used)	(48,856)	(67,371)
Cash Flows From Financing Activities:
Proceeds from Issuance of Common Stock	6,230	25,715
Receipt of advances for and contributions in aid of construction	5,660	1,973
Refunds on advances for construction	(1,147)	(1,435)
Repayments of long-term debt	(124)	(119)
Proceeds from the issuance of long-term debt, net of issuance costs	0	49,807
Net changes in notes payable to banks	(9,000)	(40,000)
Dividends paid	(19,699)	(17,762)
Other financing activities	(1,371)	(1,301)
Net cash provided (used)	(19,451)	16,878
Net change in cash and cash equivalents	3,331	(5,432)
Cash and cash equivalents, beginning of period	18,824	26,661
Cash and cash equivalents, end of period	22,155	21,229
Non-cash transactions:
Accrued payables for investment in utility plant	36,009	31,099
Property installed by developers and conveyed	1,806	1,958
GOLDEN STATE WATER COMPANY
Cash Flows From Operating Activities:
Net income	21,683	19,906
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	10,943	10,067
Provision for doubtful accounts	445	412
Deferred income taxes and investment tax credits	(459)	1,322
Stock-based compensation expense	2,852	2,604
(Gain) loss on investments held in a trust	1,272	586
Other — net	160	170
Changes in assets and liabilities:
Accounts receivable — customers	(948)	3,950
Unbilled receivable	(1,466)	996
Other receivables	1,030	532
Materials and supplies	(86)	96
Prepayments and other assets	(2,954)	(3,800)
Regulatory assets/liabilities	6,817	2,767
Accounts payable	(2,919)	(3,273)
Receivable/payable from/to affiliate	74	(765)
Income taxes receivable/payable	7,980	5,193
Accrued pension and other postretirement benefits	(230)	400
Other liabilities	991	(4,297)
Net cash provided (used)	45,185	36,866
Cash Flows From Investing Activities:
Capital expenditures	(42,244)	(57,858)
Other investing activities	195	182
Net cash provided (used)	(42,049)	(57,676)
Cash Flows From Financing Activities:
Receipt of advances for and contributions in aid of construction	5,660	1,973
Refunds on advances for construction	(1,147)	(1,435)
Repayments of long-term debt	(124)	(119)
Net changes in notes payable to banks	9,000	19,000
Dividends paid	(19,700)	0
Other financing activities	(1,227)	(1,174)
Net cash provided (used)	(7,538)	18,245
Net change in cash and cash equivalents	(4,402)	(2,565)
Cash and cash equivalents, beginning of period	9,964	11,338
Cash and cash equivalents, end of period	5,562	8,773
Non-cash transactions:
Accrued payables for investment in utility plant	34,970	29,355
Property installed by developers and conveyed	$ 1,806	$ 1,958

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Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2026

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

Nature of Operations: American States Water Company (“AWR”) is the parent company of Golden State Water Company (“GSWC”), Bear Valley Electric Service Inc. (“BVES”), and American States Utility Services, Inc. (“ASUS”) (and its subsidiaries, Fort Bliss Water Services Company (“FBWS”), Old Dominion Utility Services, Inc. (“ODUS”), Terrapin Utility Services, Inc. (“TUS”), Palmetto State Utility Services, Inc. (“PSUS”), Old North Utility Services, Inc. (“ONUS”), Emerald Coast Utility Services, Inc. (“ECUS”), Fort Riley Utility Services, Inc. (“FRUS”), Bay State Utility Services LLC (“BSUS”), and Patuxent River Utility Services LLC (“PRUS”)). AWR and its subsidiaries may be collectively referred to as “the Company.” AWR, through its wholly owned subsidiaries, serves over one million people in ten states.

 GSWC and BVES are both California public utilities. GSWC engages in the purchase, production, distribution and sale of water throughout California serving approximately 265,100 customer connections. BVES distributes electricity in several San Bernardino County mountain communities in California serving approximately 24,900 customer connections. The California Public Utilities Commission (“CPUC”) regulates GSWC’s and BVES’s businesses in matters including properties, rates, services, facilities, and transactions between GSWC, BVES, and their affiliates.

ASUS, through its wholly owned subsidiaries, operates, maintains and performs construction activities (including renewal and replacement capital work) on water and/or wastewater systems at various U.S. military bases pursuant to initial 50-year firm fixed-price contracts with the U.S. government and one 15-year contract with the U.S. government. These contracts are subject to annual economic price adjustments and modifications for changes in circumstances, changes in laws and regulations, and additions to the contract value for new construction of facilities at the military bases. ASUS also from time to time performs construction services on military bases as a subcontractor.

There is no direct regulatory oversight by the CPUC over AWR or the operations, rates or services provided by ASUS or any of its wholly owned subsidiaries.

Basis of Presentation: The consolidated financial statements and notes hereto are presented in a combined report filed by two separate Registrants: AWR and GSWC. References in this report to “Registrant” are to AWR and GSWC, collectively, unless otherwise specified. AWR owns all of the outstanding common shares of GSWC, BVES and ASUS. ASUS owns all of the outstanding equity of its subsidiaries. The consolidated financial statements of AWR include the accounts of AWR and its subsidiaries. These financial statements are prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”). Intercompany transactions and balances have been eliminated in AWR’s consolidated financial statements.

The consolidated financial statements included herein have been prepared by Registrant, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). The December 31, 2025 condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by GAAP. The preparation of the consolidated financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities, at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates. In the opinion of management, all adjustments consisting of normal, recurring items, and estimates necessary for a fair statement of the results for the interim periods have been made. It is suggested that these consolidated financial statements be read in conjunction with the consolidated financial statements and the notes thereto included in the Form 10-K for the year ended December 31, 2025 filed with the SEC.

Related Party and Intercompany Transactions: GSWC, BVES and ASUS provide and/or receive various support services to and from their parent, AWR, and among themselves. GSWC allocates certain corporate office administrative and general costs to its affiliates, BVES and ASUS, using allocation factors approved by the CPUC. GSWC allocated corporate office administrative and general costs to BVES of $1.1 million and $1.0 million during the three month periods ended March 31, 2026 and 2025, respectively. GSWC also allocated corporate office administrative and general costs to ASUS of approximately $1.7 million and $1.6 million during the three month periods ended March 31, 2026 and 2025, respectively.

When necessary, AWR will make capital contributions to its regulated utilities in order to maintain the CPUC-authorized capital structure.

Recent Accounting Pronouncements Not Yet Adopted:

In November 2024, the FASB issued Accounting Standards Update 2024-03, (Disaggregation of Income Statement Expenses) requiring public entities to disclose additional information about specific expense categories in the notes to the financial statements on an interim and annual basis. The guidance will be effective for fiscal years beginning after December 15, 2026, and for interim periods beginning after December 15, 2027, with early adoption permitted. Registrant is currently evaluating the impact of adopting this standard.

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Revenues

3 Months Ended

Mar. 31, 2026

Revenue from Contract with Customer [Abstract]

Revenues

Revenues

Most of Registrant’s revenues are derived from contracts with customers, including tariff-based revenues from its regulated utilities at GSWC and BVES. ASUS’s initial firm fixed-price long-term contracts with the U.S. government are considered service concession arrangements under ASC 853, Service Concession Arrangements. ASUS’s military base contracts consist primarily of 50-year contracts and one 15-year contract with the U.S. government. Accordingly, the services under these contracts are accounted for under Topic 606—Revenue from Contracts with Customers, and the water and/or wastewater systems are not recorded as Property, Plant and Equipment on Registrant’s balance sheets.

Although GSWC and BVES have a diversified customer base of residential, commercial, industrial, and other customers, revenues derived from residential and commercial customers generally account for approximately 90% of total water and electric revenues. Most of ASUS’s revenues are derived from the U.S. government.

For the three months ended March 31, 2026 and 2025, disaggregated revenues from contracts with customers by segment were as follows:

	Three Months Ended March 31,
(dollars in thousands)	2026		2025
Water:
Tariff-based revenues	$	111,195	$	100,331
CPUC-approved surcharges (cost-recovery activities)	414		805
Other	618		611
Water revenues from contracts with customers	112,227		101,747
M-WRAM under/(over)-collection (alternative revenue programs)	883		256
Total water revenues	113,110		102,003
Electric:
Tariff-based revenues	17,736		13,733
CPUC-approved surcharges (cost-recovery activities)	1,659		43
Electric revenues from contracts with customers	19,395		13,776
BRRBA under/(over)-collection (alternative revenue program)	(738)		1,226
Total electric revenues	18,657		15,002
Contracted services:
Water	23,178		16,612
Wastewater	14,246		14,396
Contracted services revenues from contracts with customers	37,424		31,008
Total AWR revenues	$	169,191	$	148,013

The opening and closing balances of the receivable from the U.S. government, contract assets, and contract liabilities from contracts with customers, which are related entirely to ASUS, are as follows:    

(dollars in thousands)	March 31, 2026		December 31, 2025
Unbilled receivables	$	8,919	$	5,048
Receivable from the U.S. government	$	57,428	$	74,060
Contract assets	$	32,915	$	31,507
Contract liabilities	$	11,618	$	11,735

Unbilled receivables and Receivable from the U.S. government represent receivables where the right to payment is conditional only by the passage of time.

Contract Assets - Contract assets are assets of ASUS and its subsidiaries and consist of unbilled revenues recognized from work-in-progress construction projects, where the right to payment is conditional on something other than the passage of time. The classification of this asset as current or noncurrent is based on the timing of when ASUS expects to bill these amounts.

Contract Liabilities - Contract liabilities are liabilities of ASUS and consist of billings in excess of revenue recognized. The classification of this liability as current or noncurrent is based on the timing of when ASUS expects to recognize revenue. Contracted services revenues recognized during the three months ended March 31, 2026, which were included in contract liabilities at the beginning of the period were $6.2 million. Contracted services revenues recognized during the three months ended March 31, 2026 from performance obligations satisfied in previous periods were not material.

As of March 31, 2026, AWR’s aggregate remaining performance obligations, which are entirely from the contracted services segment, were $4.2 billion. ASUS expects to recognize revenue on these remaining performance obligations over the remaining term of each of the contracts, which range from 13 to 48 years. Each of the 50-year contracts with the U.S. government is subject to termination, in whole or in part, prior to the end of its contract term for convenience of the U.S. government. The 50-year contracts provide that, in such an event, the U.S. government would be entitled to repurchase the utility systems, and ASUS would be entitled to recover any unrecovered investments under the contracts’ termination and other provisions at the time of termination.

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Regulatory Matters

3 Months Ended

Mar. 31, 2026

Regulated Operations [Abstract]

Regulatory Matters

Regulatory Matters

In accordance with accounting principles for rate-regulated enterprises, GSWC and BVES record regulatory assets, which represent probable future recovery of incurred costs from customers through the ratemaking process, and regulatory liabilities, which represent probable future refunds that are to be credited to customers through the ratemaking process. At March 31, 2026, GSWC and BVES had $0.1 million of net regulatory assets on the balance sheets, which included $122.5 million of regulatory assets net of $122.4 million of regulatory liabilities. As authorized by the CPUC, the majority of the regulatory assets and liabilities accrue interest at the current 90-day commercial-paper rate. There are $44.7 million of regulatory assets not accruing a carrying cost, which included $25.8 million related to flowed-through deferred income taxes including the gross-up portion on the deferred tax resulting from the excess deferred income tax regulatory liability, and $15.7 million related to memorandum accounts authorized by the CPUC to track unrealized gains and losses on BVES’s purchase power contracts over the term of the contracts. The remaining $3.2 million relates to other regulatory assets that do not provide for a carrying cost. Furthermore, there are $118.3 million of regulatory liabilities not incurring interest that consisted of $66.9 million related to excess deferred income taxes arising from the lower federal income tax rate under the Tax Cuts and Jobs Act enacted in December 2017 that are being refunded to customers, $41.0 million related to the net over funded positions in Registrant’s pension and other retirement obligations (not including the two-way pension balancing accounts, which accrues interest), and $10.4 million related to the PFAS contamination litigation proceeds memorandum account that also does not accrue interest.

Regulatory assets represent costs incurred by GSWC and/or BVES for which they have received or expect to receive rate recovery in the future. In determining the probability of costs being recognized in other periods, GSWC and BVES consider regulatory rules and decisions, past practices, and other facts or circumstances that would indicate if recovery is probable. If the CPUC determines that a portion of either GSWC’s or BVES’s regulatory assets are not recoverable in customer rates, the applicable utility must determine if it has suffered an asset impairment that requires it to write down the asset’s value. Regulatory assets are offset against regulatory liabilities within each ratemaking area. Amounts expected to be collected or refunded in the next twelve months have been classified as current assets and current liabilities by ratemaking area.

Regulatory assets, less regulatory liabilities, included in the consolidated balance sheets are as follows:

(dollars in thousands)	March 31, 2026		December 31, 2025
GSWC
2022/2023 general rate case memorandum accounts (unbilled revenue)	$	18,814	$	22,107
Flowed-through deferred income taxes, net	22,286		20,932
Low income rate assistance balancing accounts	11,502		10,582
Other regulatory assets	23,370		28,405
Excess deferred income taxes	(63,152)		(63,223)
Pensions and other post-retirement obligations	(43,984)		(43,479)
Per- and Polyfluoroalkyl Substances (“PFAS”) Contamination Litigation Proceeds Memorandum Account	(10,406)		(10,987)
Other regulatory liabilities	(218)		(1,331)
Total GSWC	$	(41,788)	$	(36,994)
BVES
Derivative instrument memorandum account (Note 5)	$	15,708	$	15,503
2023/2024 general rate case memorandum accounts (unbilled revenue)	7,237		8,221
Wildfire mitigation and other fire prevention related costs memorandum accounts	9,877		11,336
Other regulatory assets	13,682		15,213
Other regulatory liabilities	(4,624)		(4,015)
Total BVES	$	41,880	$	46,258
Total AWR	$	92	$	9,264

Regulatory matters are discussed in the consolidated financial statements and the notes thereto included in the Company’s Form 10-K for the year ended December 31, 2025 filed with the SEC. There were no significant changes during the three months ended March 31, 2026 except for routine and recurring activity including the recovery of regulatory assets through surcharges currently in place.

PFAS Contamination Litigation Proceeds Memorandum Account:

GSWC has been a plaintiff in various class action lawsuits related to PFAS contamination affecting public water systems. A class settlement agreement among Tyco Fire Products LP (“Tyco”) and the class of eligible public water systems was entered into on April 12, 2024 that resolved any claims for PFAS contamination with Tyco. The class settlement agreement between the parties was approved by an order issued by the Federal District Court of South Carolina on November 22, 2024. As a result of the settlement, GSWC was notified on April 8, 2026 that it will receive from Tyco $2.2 million, net of legal fees.

Settlement proceeds received by GSWC have been and may be used for future capital investments or operations and maintenance expenses related to PFAS water contamination to its water systems or any PFAS related litigation against its water systems, which benefit GSWC’s customers. The CPUC has authorized GSWC to track in a memorandum account the settlement payments received by GSWC from lawsuits related to PFAS contamination in its water systems, which include the proceeds received for participation in class action lawsuits. The amounts in the memorandum account have been recorded as a regulatory liability and have been used, and will continue to be used in the future, to offset the incremental investments in replacement and treatment of property, as well as operations and maintenance expenses and other direct expenses related to PFAS contamination.

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Earnings per Share/Capital Stock

3 Months Ended

Mar. 31, 2026

Earnings Per Share [Abstract]

Earnings per Share/Capital Stock

Earnings per Share/Capital Stock

In accordance with the accounting guidance for participating securities and earnings per share (“EPS”), Registrant uses the “two-class” method of computing EPS. The “two-class” method is an earnings allocation formula that determines EPS for each class of common stock and participating security. AWR has participating securities related to restricted stock units that earn dividend equivalents on an equal basis with AWR’s Common Shares, and that have been issued under AWR’s stock incentive plans for employees and the non-employee directors stock plans. In applying the “two-class” method, undistributed earnings are allocated to both Common Shares and participating securities.

The following is a reconciliation of Registrant’s net income and weighted average Common Shares outstanding used to calculate basic EPS:

Basic:	For The Three Months Ended   March 31,
(in thousands, except per share amounts)	2026		2025
Net income	$	29,948	$	26,844
Less: impact from participating securities	87		81
Total income available to common shareholders	$	29,861	$	26,763
Weighted average Common Shares outstanding, basic	39,111		38,253
Basic earnings per Common Share	$	0.76	$	0.70

Diluted EPS is based upon the weighted average number of Common Shares, including both outstanding shares and shares potentially issuable in connection with restricted stock units granted under AWR’s stock incentive plans for employees and directors, and net income. The following is a reconciliation of Registrant’s net income and weighted average Common Shares outstanding used to calculate diluted EPS:

Diluted:	For The Three Months Ended   March 31,
(in thousands, except per share amounts)	2026		2025
Common shareholders earnings, basic	$	29,861	$	26,763
Undistributed earnings for dilutive restricted stock units	30		27
Total common shareholders earnings, diluted	$	29,891	$	26,790
Weighted average Common Shares outstanding, basic	39,111		38,253
Stock-based compensation (1)	99		101
Weighted average Common Shares outstanding, diluted	39,210		38,354
Diluted earnings per Common Share	$	0.76	$	0.70

(1)     In applying the treasury stock method of reflecting the dilutive effect of outstanding stock-based compensation in calculating diluted EPS, 155,400 and 153,583 restricted stock units, including performance awards to officers of the Company at March 31, 2026 and 2025, respectively, were deemed to be outstanding and included in the calculation of diluted EPS.

On February 27, 2024, AWR entered into an Equity Distribution Agreement with third-party sales agents, under which AWR may offer and sell its Common Shares, from time to time at its sole discretion, through an at-the-market (“ATM”) offering program having an aggregate gross offering price of up to $200 million over a three-year period and pursuant to AWR’s effective shelf registration statement on Form S-3. AWR has used the net proceeds from these sales, after deducting commissions on such sales and offering expenses, for general corporate purposes, including, but not limited to, repayment of debt and equity contributions to its subsidiaries. During the three months ended March 31, 2026 and 2025, AWR sold 84,237 and 334,548 Common Shares, respectively, through the ATM offering program and raised proceeds of $6.3 million, net of $0.1 million in commissions paid, and $25.8 million, net of $0.4 million in commissions paid, respectively. AWR also incurred $0.1 million of other expenses for each of the three months ended March 31, 2026 and 2025, which was primarily legal and other costs. As of March 31, 2026, approximately $34.3 million remains available for sale under the ATM offering program.

During the three months ended March 31, 2026 and 2025, AWR also issued 25,946 and 23,014 Common Shares related to restricted stock units, respectively, pursuant to stock-based compensation plans.

During the three months ended March 31, 2026 and 2025, AWR paid $1.4 million and $1.3 million, respectively, to taxing authorities on employees’ behalf for shares withheld related to net share settlements. During the three months ended March 31, 2026 and 2025, GSWC paid $1.2 million in each period to taxing authorities on employees’ behalf for shares withheld related to net share settlements. These payments are included in the stock-based compensation caption of the statements of equity.

During the three months ended March 31, 2026 and 2025, AWR paid quarterly dividends to shareholders of approximately $19.7 million, or $0.5040 per share, and $17.8 million, or $0.4655 per share, respectively. During the three months ended March 31, 2026 , GSWC paid dividends of $19.7 million to AWR. GSWC did not pay a dividend to AWR during the three months ended March 31, 2025.

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Derivative Instruments

3 Months Ended

Mar. 31, 2026

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments

Derivative Instruments

In May 2025, the CPUC approved a new power purchase contract between BVES and a third party. The new contract provides for the purchase of electricity during a delivery period from June 1, 2025 through December 31, 2028 and is subject to the accounting guidance for derivatives and requires mark-to-market accounting. In addition, BVES continues to procure renewable portfolio standard eligible energy and renewable energy credits as a bundled product through a contract that delivers through December 31, 2035. Under this contract, there is an embedded derivative that also requires mark-to-market accounting.

The CPUC authorized the use of regulatory asset and liability memorandum accounts to offset the mark-to-market entries required by the accounting guidance. Accordingly, all unrealized gains and losses generated from derivative instruments in the purchase power contracts are deferred on a monthly basis into a non-interest-bearing regulatory memorandum account that tracks the changes in fair value of the derivatives throughout the terms of the contracts. As a result, these unrealized gains and losses do not impact Registrant’s earnings. As of March 31, 2026, the fair value of the derivative liability was $15.7 million for the power purchase contracts, with a corresponding regulatory asset recorded in the derivative instrument memorandum account as a result of overall fixed prices under BVES’s purchase power contract being higher than future energy prices. The notional volume of obligations remaining under these long-term contracts as of March 31, 2026 was 760,412 megawatt hours.

The accounting guidance for fair value measurements applies to all financial assets and financial liabilities that are measured and reported on a fair value basis. Under the accounting guidance, Registrant has made fair value measurements that are classified and disclosed in one of the following three categories:

Level 1: Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities;

Level 2: Quoted prices in markets that are not active or inputs which are observable, either directly or indirectly, for substantially the full term of the asset or liability; or

Level 3: Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported by little or no market activity).

To value the derivatives in the purchase power contracts, BVES utilizes various inputs that include quoted market prices for energy over the duration of its contracts. The market prices used to determine the fair value for the derivative instruments were estimated based on independent sources such as broker quotes and publications that are not observable in or corroborated by the market. When such inputs have a significant impact on the measurement of fair value, the instruments are categorized as Level 3. Accordingly, the valuation of the derivatives within BVES’s purchase power contracts have been classified as Level 3 for all periods presented.

The change in fair value was due to changes in forward market energy prices as of March 31, 2026 and 2025. The following table presents changes in the fair value of the Level 3 derivatives for the three months ended March 31, 2026 and 2025:

	For The Three Months Ended   March 31,
(dollars in thousands)	2026		2025
Fair value at beginning of the period	$	(15,503)	$	(8,823)
Unrealized (losses) gains on purchase power contracts	(205)		(4,271)
Fair value at end of the period	$	(15,708)	$	(13,094)

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Fair Value of Financial Instruments

3 Months Ended

Mar. 31, 2026

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

Fair Value of Financial Instruments

For cash and cash equivalents, accounts receivable, accounts payable and short-term debt, the carrying amount is assumed to approximate fair value due to the short-term nature of these items.

Investments held in a Rabbi Trust for the supplemental executive retirement plan (“SERP”) are measured at fair value and totaled $47.1 million as of March 31, 2026 and $48.4 million as of December 31, 2025. All equity investments in the Rabbi Trust are Level 1 investments in mutual funds. The investments held in the Rabbi Trust are included in “Other Property and Investments” on Registrant’s balance sheets.

The table below estimates the fair value of long-term debt held by AWR and GSWC, respectively. The fair values as of March 31, 2026 and December 31, 2025 were determined using rates for similar financial instruments of the same duration utilizing Level 2 methods and assumptions. Changes in the assumptions will produce different results.

	March 31, 2026				December 31, 2025
(dollars in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial liabilities:
Long-term debt—AWR (1)	$	794,185	$	776,792	$	794,310	$	790,820
	March 31, 2026				December 31, 2025
(dollars in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial liabilities:
Long-term debt—GSWC (2)	$	709,185	$	690,889	$	709,310	$	703,319

__________________

(1) Excludes debt issuance costs of approximately $3.2 million and $3.4 million as of March 31, 2026 and December 31, 2025, respectively.

(2) Excludes debt issuance costs of approximately $2.9 million and $3.0 million as of March 31, 2026 and December 31, 2025, respectively.

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Income Taxes

3 Months Ended

Mar. 31, 2026

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

AWR’s effective income tax rate (“ETR”) was 24.8% and 24.0% for the three months ended March 31, 2026 and 2025, respectively. GSWC’s ETR was 25.9% and 24.7% for the three months ended March 31, 2026 and 2025, respectively.

The AWR and GSWC ETRs differed from the federal corporate statutory tax rate of 21% primarily due to (i) state taxes; (ii) permanent differences, including certain tax effects from stock compensation; (iii) the ongoing amortization of the excess deferred income tax liability; and (iv) differences between book and taxable income that are treated as flowed-through adjustments in accordance with regulatory requirements (principally from plant, rate-case, and compensation-related items). As regulated utilities, GSWC and BVES treat certain temporary differences as flowed-through to customers in computing their income tax expense consistent with the income tax method used in their CPUC-jurisdiction rate making. Flowed-through items either increase or decrease tax expense and the ETR.

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Employee Benefit Plans

3 Months Ended

Mar. 31, 2026

Retirement Benefits [Abstract]

Employee Benefit Plans

Employee Benefit Plans

The components of net periodic benefit costs for Registrant’s pension plan, postretirement medical benefit plan and SERP for the three months ended March 31, 2026 and 2025 were as follows:

	For The Three Months Ended March 31,
	Pension Benefits				Other Postretirement Benefits				SERP
(dollars in thousands)	2026		2025		2026		2025		2026		2025
Components of Net Periodic Benefits Cost:
Service cost	$	752	$	774	$	27	$	27	$	202	$	181
Interest cost	2,713		2,706		19		24		506		485
Expected return on plan assets	(3,554)		(3,183)		(179)		(161)		—		—
Amortization of prior service cost	109		108		—		—		—		—
Amortization of actuarial (gain) loss	(481)		—		(71)		(291)		—		—
Net periodic benefits costs under accounting standards	$	(461)	$	405	$	(204)	$	(401)	$	708	$	666

Registrant's contribution to its pension plan in 2026 is not expected to be significant given its current funded status. Registrant’s policy is to fund the plans annually at a level which is deductible for income tax purposes and is consistent with amounts recovered in customer rates while also complying with ERISA’s funding requirements.

As authorized by the CPUC in the water and electric general rate case decisions, GSWC and BVES each utilize two-way balancing accounts to track differences between the forecasted annual pension expenses in rates, or expected to be in rates, and the actual annual expense recorded in accordance with the accounting guidance for pension costs. During the three months ended March 31, 2026 and 2025, GSWC’s actual pension expense was lower than the amounts included in water customer rates by $0.9 million and $0.3 million during the three months ended March 31, 2026 and 2025, respectively. As of March 31, 2026, GSWC has a $3.0 million over-collection in its two-way balancing account, which is included as part of regulatory liabilities (Note 3).

BVES’s actual expense was lower than the amounts included in electric customer rates for all periods presented. As a result of receiving a final decision in its electric general rate case in the fourth quarter of 2024, BVES’s actual pension expense is nearly aligned with the amounts included in electric rates, resulting in an insignificant balance in their pension balancing account as of March 31, 2026.

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Contingencies

3 Months Ended

Mar. 31, 2026

Commitments and Contingencies Disclosure [Abstract]

Contingencies

Contingencies

Environmental Clean-Up and Remediation at GSWC:

GSWC has been involved in environmental remediation and cleanup at one of its plant sites that contained an underground storage tank, which was used to store gasoline for its vehicles. This tank was removed from the ground in July 1990 along with the dispenser and ancillary piping. Since then, GSWC has been involved in various remediation activities at this site. 

As of March 31, 2026, the total amount spent to clean-up and remediate the plant site, since inception of the remediation period, amounted to approximately $7.0 million, of which $1.5 million has been paid by the State of California Underground Storage Tank Fund. Amounts paid by GSWC have been included in rate base and approved by the CPUC for recovery. As of March 31, 2026, GSWC has a regulatory asset and an accrued liability for the estimated remaining cost of $1.3 million to complete the clean-up at the site. The estimate includes costs for continued activities of groundwater cleanup and monitoring, future soil treatment and site-closure-related activities. The ultimate cost may vary as there are many unknowns in remediation of underground gasoline spills and this is an estimate based on currently available information. Management believes it is probable that the estimated additional costs will continue to be approved in rate base by the CPUC as approved historically.

Other Litigation:

Registrant is also subject to other ordinary routine litigation incidental to its business, some of which may include claims for compensatory and punitive damages. Management believes that rate recovery, proper insurance coverage and reserves are in place to insure against, among other things, property, general liability, employment, and workers’ compensation claims incurred in the ordinary course of business. Insurance coverage may not cover certain claims involving punitive damages. Registrant does not believe the outcome from any pending suits or administrative proceedings will have a material effect on Registrant’s consolidated results of operations, financial position, or cash flows.

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Business Segments

3 Months Ended

Mar. 31, 2026

Segment Reporting [Abstract]

Business Segments

Business Segments

AWR has three reportable segments: water, electric and contracted services. GSWC has one segment, water. On a stand-alone basis, AWR has no material assets or liabilities other than its equity investments in its subsidiaries, note payables to bank, deferred taxes and note receivables from affiliate.

GSWC and BVES are CPUC regulated public utilities with business activities conducted in California. Activities of ASUS and its subsidiaries are conducted in California, Florida, Kansas, Maryland, Massachusetts, New Mexico, North Carolina, South Carolina, Texas and Virginia. Some of ASUS’s wholly owned subsidiaries are regulated by the state in which the subsidiary primarily conducts water and/or wastewater operations. Fees charged for operations and maintenance and renewal and replacement services are based upon the terms of the contracts with the U.S. government, which have been filed, as appropriate, with the commissions in the states in which ASUS’s subsidiaries are incorporated.

Registrant evaluates the performance of its reportable segments based on segment net income (loss). Registrant’s chief operating decision maker is the chief executive officer. The chief operating decision maker uses segment net income (loss) as a financial measure as part of the annual operating budget and forecasting process to monitor monthly financial activities of its segments. This financial information is reviewed and evaluated by the chief operating decision maker in making segment operating, capital, and business decisions.

The following tables present information by reportable segment and AWR (parent) that reconcile segment net income (loss) to total consolidated net income (loss) and segment assets to total consolidated assets. The utility plant balances are net of respective accumulated provisions for depreciation. The net property, plant and equipment of the electric segment is presented net of Contributions in Aid of Construction (CIAC). Capital additions reflect capital expenditures paid in cash and exclude U.S. government-funded and third-party prime funded capital expenditures for ASUS’s subsidiaries and property installed by developers and conveyed to GSWC and BVES.

	For The Three Months Ended March 31, 2026
							Total
					Contracted		Reportable		AWR		Consolidated
(dollars in thousands)	Water		Electric		Services		Segments		Parent		AWR
Operating revenues	$	113,110	$	18,657	$	37,424	$	169,191	$	—	$	169,191
Less:
Supply costs	30,261		4,397		—		34,658		—		34,658
Other operation	7,144		1,341		2,783		11,268		—		11,268
Administrative and general	17,754		3,666		6,732		28,152		2		28,154
Depreciation and amortization expense (1)	10,659		1,066		959		12,684		—		12,684
Maintenance	2,074		2,250		1,376		5,700		—		5,700
Property and other taxes	6,520		822		681		8,023		—		8,023
ASUS construction expense	—		—		17,333		17,333		—		17,333
Segment operating income (loss)	38,698		5,115		7,560		51,373		(2)		51,371
Interest expense	(9,392)		(1,253)		(71)		(10,716)		(1,391)		(12,107)
Interest income	478		290		200		968		8		976
Gain (loss) on investments held in a trust	(1,272)		—		—		(1,272)		—		(1,272)
Income tax expense (benefit)	7,564		884		1,889		10,337		(465)		9,872
Other segment items income (expense) (2)	735		45		15		795		57		852
Segment net income (loss)	$	21,683	$	3,313	$	5,815	$	30,811	$	(863)	$	29,948
	For The Three Months Ended March 31, 2026
							Total
					Contracted		Reportable		AWR		Consolidated
(dollars in thousands)	Water		Electric		Services		Segments		Parent		AWR
Capital additions (3)	$	42,244	$	4,932	$	1,875	$	49,051	$	—	$	49,051

	For The Three Months Ended March 31, 2025
							Total
					Contracted		Reportable		AWR		Consolidated
(dollars in thousands)	Water		Electric		Services		Segments		Parent		AWR
Operating revenues	$	102,003	$	15,002	$	31,008	$	148,013	$	—	$	148,013
Less:
Supply costs	25,423		4,065		—		29,488		—		29,488
Other operation	6,675		1,241		2,574		10,490		—		10,490
Administrative and general	17,657		3,098		6,119		26,874		1		26,875
Depreciation and amortization expense (1)	9,824		885		873		11,582		—		11,582
Maintenance	2,004		911		1,232		4,147		—		4,147
Property and other taxes	5,624		686		642		6,952		—		6,952
ASUS construction expense	—		—		12,933		12,933		—		12,933
Segment operating income (loss)	34,796		4,116		6,635		45,547		(1)		45,546
Interest expense	(9,328)		(1,136)		(313)		(10,777)		(1,305)		(12,082)
Interest income	1,272		524		199		1,995		18		2,013
Gain (loss) on investments held in a trust	(586)		—		—		(586)		—		(586)
Income tax expense (benefit)	6,514		1,047		1,377		8,938		(476)		8,462
Other segment items income (expense) (2)	266		169		(20)		415		—		415
Segment net income (loss)	$	19,906	$	2,626	$	5,124	$	27,656	$	(812)	$	26,844
	For The Three Months Ended March 31, 2025
							Total
					Contracted		Reportable		AWR		Consolidated
(dollars in thousands)	Water		Electric		Services		Segments		Parent		AWR
Capital additions (3)	$	57,858	$	7,853	$	1,854	$	67,565	$	—	$	67,565

(1)   Depreciation computed on regulated utilities’ transportation equipment is recorded in other operating expenses and totaled $0.3 million for each of the three months ended March 31, 2026 and 2025.

(2) Other segment items primarily consist of a) non-service cost components related to Registrant’s benefit plans, and b) AFUDC (equity) on certain BVES capital projects while under construction.

(3) Capital additions reflect capital expenditures paid in cash and exclude U.S. government-funded and third-party prime funded capital expenditures for ASUS’s subsidiaries and property installed by developers and conveyed to GSWC and BVES.

The following tables reconcile segment net property, plant and equipment to total consolidated assets (in thousands):

	As of March 31, 2026
							Total
					Contracted		Reportable		AWR		Less		Consolidated
	Water		Electric		Services		Segments		Parent		Eliminations		AWR
Total net property, plant and equipment (4)	$	2,114,302	$	194,252	$	21,139	$	2,329,693	$	—	$	—	$	2,329,693
Other assets	220,008		58,765		123,628		402,401		1,180,569		(1,178,523)		404,447
Total consolidated assets	$	2,334,310	$	253,017	$	144,767	$	2,732,094	$	1,180,569	$	(1,178,523)	$	2,734,140
	As of December 31, 2025
							Total
					Contracted		Reportable		AWR		Less		Consolidated
	Water		Electric		Services		Segments		Parent		Eliminations		AWR
Total net property, plant and equipment (4)	$	2,083,684	$	192,416	$	20,219	$	2,296,319	$	—	$	—	$	2,296,319
Other assets	232,178		61,928		126,437		420,543		1,176,760		(1,178,530)		418,773
Total consolidated assets	$	2,315,862	$	254,344	$	146,656	$	2,716,862	$	1,176,760	$	(1,178,530)	$	2,715,092

(4) The utility plant balances are net of respective accumulated provisions for depreciation.

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Insider Trading Arrangements	3 Months Ended
	Mar. 31, 2026
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

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Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2026

Accounting Policies [Abstract]

Nature of Operations and Basis of Presentation

Nature of Operations: American States Water Company (“AWR”) is the parent company of Golden State Water Company (“GSWC”), Bear Valley Electric Service Inc. (“BVES”), and American States Utility Services, Inc. (“ASUS”) (and its subsidiaries, Fort Bliss Water Services Company (“FBWS”), Old Dominion Utility Services, Inc. (“ODUS”), Terrapin Utility Services, Inc. (“TUS”), Palmetto State Utility Services, Inc. (“PSUS”), Old North Utility Services, Inc. (“ONUS”), Emerald Coast Utility Services, Inc. (“ECUS”), Fort Riley Utility Services, Inc. (“FRUS”), Bay State Utility Services LLC (“BSUS”), and Patuxent River Utility Services LLC (“PRUS”)). AWR and its subsidiaries may be collectively referred to as “the Company.” AWR, through its wholly owned subsidiaries, serves over one million people in ten states.

 GSWC and BVES are both California public utilities. GSWC engages in the purchase, production, distribution and sale of water throughout California serving approximately 265,100 customer connections. BVES distributes electricity in several San Bernardino County mountain communities in California serving approximately 24,900 customer connections. The California Public Utilities Commission (“CPUC”) regulates GSWC’s and BVES’s businesses in matters including properties, rates, services, facilities, and transactions between GSWC, BVES, and their affiliates.

ASUS, through its wholly owned subsidiaries, operates, maintains and performs construction activities (including renewal and replacement capital work) on water and/or wastewater systems at various U.S. military bases pursuant to initial 50-year firm fixed-price contracts with the U.S. government and one 15-year contract with the U.S. government. These contracts are subject to annual economic price adjustments and modifications for changes in circumstances, changes in laws and regulations, and additions to the contract value for new construction of facilities at the military bases. ASUS also from time to time performs construction services on military bases as a subcontractor.

There is no direct regulatory oversight by the CPUC over AWR or the operations, rates or services provided by ASUS or any of its wholly owned subsidiaries.

Basis of Presentation: The consolidated financial statements and notes hereto are presented in a combined report filed by two separate Registrants: AWR and GSWC. References in this report to “Registrant” are to AWR and GSWC, collectively, unless otherwise specified. AWR owns all of the outstanding common shares of GSWC, BVES and ASUS. ASUS owns all of the outstanding equity of its subsidiaries. The consolidated financial statements of AWR include the accounts of AWR and its subsidiaries. These financial statements are prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”). Intercompany transactions and balances have been eliminated in AWR’s consolidated financial statements.

The consolidated financial statements included herein have been prepared by Registrant, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). The December 31, 2025 condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by GAAP. The preparation of the consolidated financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities, at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates. In the opinion of management, all adjustments consisting of normal, recurring items, and estimates necessary for a fair statement of the results for the interim periods have been made. It is suggested that these consolidated financial statements be read in conjunction with the consolidated financial statements and the notes thereto included in the Form 10-K for the year ended December 31, 2025 filed with the SEC.

Related Party and Intercompany Transactions

Related Party and Intercompany Transactions: GSWC, BVES and ASUS provide and/or receive various support services to and from their parent, AWR, and among themselves. GSWC allocates certain corporate office administrative and general costs to its affiliates, BVES and ASUS, using allocation factors approved by the CPUC. GSWC allocated corporate office administrative and general costs to BVES of $1.1 million and $1.0 million during the three month periods ended March 31, 2026 and 2025, respectively. GSWC also allocated corporate office administrative and general costs to ASUS of approximately $1.7 million and $1.6 million during the three month periods ended March 31, 2026 and 2025, respectively.

When necessary, AWR will make capital contributions to its regulated utilities in order to maintain the CPUC-authorized capital structure.

Recent Accounting Pronouncements

Recent Accounting Pronouncements Not Yet Adopted:

In November 2024, the FASB issued Accounting Standards Update 2024-03, (Disaggregation of Income Statement Expenses) requiring public entities to disclose additional information about specific expense categories in the notes to the financial statements on an interim and annual basis. The guidance will be effective for fiscal years beginning after December 15, 2026, and for interim periods beginning after December 15, 2027, with early adoption permitted. Registrant is currently evaluating the impact of adopting this standard.

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Revenues (Tables)

3 Months Ended

Mar. 31, 2026

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

For the three months ended March 31, 2026 and 2025, disaggregated revenues from contracts with customers by segment were as follows:

	Three Months Ended March 31,
(dollars in thousands)	2026		2025
Water:
Tariff-based revenues	$	111,195	$	100,331
CPUC-approved surcharges (cost-recovery activities)	414		805
Other	618		611
Water revenues from contracts with customers	112,227		101,747
M-WRAM under/(over)-collection (alternative revenue programs)	883		256
Total water revenues	113,110		102,003
Electric:
Tariff-based revenues	17,736		13,733
CPUC-approved surcharges (cost-recovery activities)	1,659		43
Electric revenues from contracts with customers	19,395		13,776
BRRBA under/(over)-collection (alternative revenue program)	(738)		1,226
Total electric revenues	18,657		15,002
Contracted services:
Water	23,178		16,612
Wastewater	14,246		14,396
Contracted services revenues from contracts with customers	37,424		31,008
Total AWR revenues	$	169,191	$	148,013

Contract with Customer, Asset and Liability

The opening and closing balances of the receivable from the U.S. government, contract assets, and contract liabilities from contracts with customers, which are related entirely to ASUS, are as follows:    

(dollars in thousands)	March 31, 2026		December 31, 2025
Unbilled receivables	$	8,919	$	5,048
Receivable from the U.S. government	$	57,428	$	74,060
Contract assets	$	32,915	$	31,507
Contract liabilities	$	11,618	$	11,735

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Regulatory Matters (Tables)

3 Months Ended

Mar. 31, 2026

Regulated Operations [Abstract]

Schedule of regulatory assets, less regulatory liabilities in the consolidated balance sheets for continuing operations

Regulatory assets, less regulatory liabilities, included in the consolidated balance sheets are as follows:

(dollars in thousands)	March 31, 2026		December 31, 2025
GSWC
2022/2023 general rate case memorandum accounts (unbilled revenue)	$	18,814	$	22,107
Flowed-through deferred income taxes, net	22,286		20,932
Low income rate assistance balancing accounts	11,502		10,582
Other regulatory assets	23,370		28,405
Excess deferred income taxes	(63,152)		(63,223)
Pensions and other post-retirement obligations	(43,984)		(43,479)
Per- and Polyfluoroalkyl Substances (“PFAS”) Contamination Litigation Proceeds Memorandum Account	(10,406)		(10,987)
Other regulatory liabilities	(218)		(1,331)
Total GSWC	$	(41,788)	$	(36,994)
BVES
Derivative instrument memorandum account (Note 5)	$	15,708	$	15,503
2023/2024 general rate case memorandum accounts (unbilled revenue)	7,237		8,221
Wildfire mitigation and other fire prevention related costs memorandum accounts	9,877		11,336
Other regulatory assets	13,682		15,213
Other regulatory liabilities	(4,624)		(4,015)
Total BVES	$	41,880	$	46,258
Total AWR	$	92	$	9,264

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Earnings per Share/Capital Stock (Tables)

3 Months Ended

Mar. 31, 2026

Earnings Per Share [Abstract]

Schedule of reconciliation of Registrant's net income and weighted average Common Shares outstanding for calculating basic net income per share

The following is a reconciliation of Registrant’s net income and weighted average Common Shares outstanding used to calculate basic EPS:

Basic:	For The Three Months Ended   March 31,
(in thousands, except per share amounts)	2026		2025
Net income	$	29,948	$	26,844
Less: impact from participating securities	87		81
Total income available to common shareholders	$	29,861	$	26,763
Weighted average Common Shares outstanding, basic	39,111		38,253
Basic earnings per Common Share	$	0.76	$	0.70

Schedule of reconciliation of Registrant's net income and weighted average Common Shares outstanding for calculating diluted net income per share

The following is a reconciliation of Registrant’s net income and weighted average Common Shares outstanding used to calculate diluted EPS:

Diluted:	For The Three Months Ended   March 31,
(in thousands, except per share amounts)	2026		2025
Common shareholders earnings, basic	$	29,861	$	26,763
Undistributed earnings for dilutive restricted stock units	30		27
Total common shareholders earnings, diluted	$	29,891	$	26,790
Weighted average Common Shares outstanding, basic	39,111		38,253
Stock-based compensation (1)	99		101
Weighted average Common Shares outstanding, diluted	39,210		38,354
Diluted earnings per Common Share	$	0.76	$	0.70

(1)     In applying the treasury stock method of reflecting the dilutive effect of outstanding stock-based compensation in calculating diluted EPS, 155,400 and 153,583 restricted stock units, including performance awards to officers of the Company at March 31, 2026 and 2025, respectively, were deemed to be outstanding and included in the calculation of diluted EPS.

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Derivative Instruments (Tables)

3 Months Ended

Mar. 31, 2026

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments

The following table presents changes in the fair value of the Level 3 derivatives for the three months ended March 31, 2026 and 2025:

	For The Three Months Ended   March 31,
(dollars in thousands)	2026		2025
Fair value at beginning of the period	$	(15,503)	$	(8,823)
Unrealized (losses) gains on purchase power contracts	(205)		(4,271)
Fair value at end of the period	$	(15,708)	$	(13,094)

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Fair Value of Financial Instruments: (Tables)

3 Months Ended

Mar. 31, 2026

Fair Value Disclosures [Abstract]

Schedule of estimates of the fair value of long-term debt

The table below estimates the fair value of long-term debt held by AWR and GSWC, respectively. The fair values as of March 31, 2026 and December 31, 2025 were determined using rates for similar financial instruments of the same duration utilizing Level 2 methods and assumptions. Changes in the assumptions will produce different results.

	March 31, 2026				December 31, 2025
(dollars in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial liabilities:
Long-term debt—AWR (1)	$	794,185	$	776,792	$	794,310	$	790,820
	March 31, 2026				December 31, 2025
(dollars in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial liabilities:
Long-term debt—GSWC (2)	$	709,185	$	690,889	$	709,310	$	703,319

__________________

(1) Excludes debt issuance costs of approximately $3.2 million and $3.4 million as of March 31, 2026 and December 31, 2025, respectively.

(2) Excludes debt issuance costs of approximately $2.9 million and $3.0 million as of March 31, 2026 and December 31, 2025, respectively.

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Employee Benefit Plans: (Tables)

3 Months Ended

Mar. 31, 2026

Retirement Benefits [Abstract]

Schedule of components of net periodic benefit costs, before allocation to the overhead pool, for Registrant's pension plan, postretirement plan, and SERP

The components of net periodic benefit costs for Registrant’s pension plan, postretirement medical benefit plan and SERP for the three months ended March 31, 2026 and 2025 were as follows:

	For The Three Months Ended March 31,
	Pension Benefits				Other Postretirement Benefits				SERP
(dollars in thousands)	2026		2025		2026		2025		2026		2025
Components of Net Periodic Benefits Cost:
Service cost	$	752	$	774	$	27	$	27	$	202	$	181
Interest cost	2,713		2,706		19		24		506		485
Expected return on plan assets	(3,554)		(3,183)		(179)		(161)		—		—
Amortization of prior service cost	109		108		—		—		—		—
Amortization of actuarial (gain) loss	(481)		—		(71)		(291)		—		—
Net periodic benefits costs under accounting standards	$	(461)	$	405	$	(204)	$	(401)	$	708	$	666

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Business Segments (Tables)

3 Months Ended

Mar. 31, 2026

Segment Reporting [Abstract]

Schedule of reporting segments information

The following tables present information by reportable segment and AWR (parent) that reconcile segment net income (loss) to total consolidated net income (loss) and segment assets to total consolidated assets. The utility plant balances are net of respective accumulated provisions for depreciation. The net property, plant and equipment of the electric segment is presented net of Contributions in Aid of Construction (CIAC). Capital additions reflect capital expenditures paid in cash and exclude U.S. government-funded and third-party prime funded capital expenditures for ASUS’s subsidiaries and property installed by developers and conveyed to GSWC and BVES.

	For The Three Months Ended March 31, 2026
							Total
					Contracted		Reportable		AWR		Consolidated
(dollars in thousands)	Water		Electric		Services		Segments		Parent		AWR
Operating revenues	$	113,110	$	18,657	$	37,424	$	169,191	$	—	$	169,191
Less:
Supply costs	30,261		4,397		—		34,658		—		34,658
Other operation	7,144		1,341		2,783		11,268		—		11,268
Administrative and general	17,754		3,666		6,732		28,152		2		28,154
Depreciation and amortization expense (1)	10,659		1,066		959		12,684		—		12,684
Maintenance	2,074		2,250		1,376		5,700		—		5,700
Property and other taxes	6,520		822		681		8,023		—		8,023
ASUS construction expense	—		—		17,333		17,333		—		17,333
Segment operating income (loss)	38,698		5,115		7,560		51,373		(2)		51,371
Interest expense	(9,392)		(1,253)		(71)		(10,716)		(1,391)		(12,107)
Interest income	478		290		200		968		8		976
Gain (loss) on investments held in a trust	(1,272)		—		—		(1,272)		—		(1,272)
Income tax expense (benefit)	7,564		884		1,889		10,337		(465)		9,872
Other segment items income (expense) (2)	735		45		15		795		57		852
Segment net income (loss)	$	21,683	$	3,313	$	5,815	$	30,811	$	(863)	$	29,948
	For The Three Months Ended March 31, 2026
							Total
					Contracted		Reportable		AWR		Consolidated
(dollars in thousands)	Water		Electric		Services		Segments		Parent		AWR
Capital additions (3)	$	42,244	$	4,932	$	1,875	$	49,051	$	—	$	49,051

	For The Three Months Ended March 31, 2025
							Total
					Contracted		Reportable		AWR		Consolidated
(dollars in thousands)	Water		Electric		Services		Segments		Parent		AWR
Operating revenues	$	102,003	$	15,002	$	31,008	$	148,013	$	—	$	148,013
Less:
Supply costs	25,423		4,065		—		29,488		—		29,488
Other operation	6,675		1,241		2,574		10,490		—		10,490
Administrative and general	17,657		3,098		6,119		26,874		1		26,875
Depreciation and amortization expense (1)	9,824		885		873		11,582		—		11,582
Maintenance	2,004		911		1,232		4,147		—		4,147
Property and other taxes	5,624		686		642		6,952		—		6,952
ASUS construction expense	—		—		12,933		12,933		—		12,933
Segment operating income (loss)	34,796		4,116		6,635		45,547		(1)		45,546
Interest expense	(9,328)		(1,136)		(313)		(10,777)		(1,305)		(12,082)
Interest income	1,272		524		199		1,995		18		2,013
Gain (loss) on investments held in a trust	(586)		—		—		(586)		—		(586)
Income tax expense (benefit)	6,514		1,047		1,377		8,938		(476)		8,462
Other segment items income (expense) (2)	266		169		(20)		415		—		415
Segment net income (loss)	$	19,906	$	2,626	$	5,124	$	27,656	$	(812)	$	26,844
	For The Three Months Ended March 31, 2025
							Total
					Contracted		Reportable		AWR		Consolidated
(dollars in thousands)	Water		Electric		Services		Segments		Parent		AWR
Capital additions (3)	$	57,858	$	7,853	$	1,854	$	67,565	$	—	$	67,565

(1)   Depreciation computed on regulated utilities’ transportation equipment is recorded in other operating expenses and totaled $0.3 million for each of the three months ended March 31, 2026 and 2025.

(2) Other segment items primarily consist of a) non-service cost components related to Registrant’s benefit plans, and b) AFUDC (equity) on certain BVES capital projects while under construction.

(3) Capital additions reflect capital expenditures paid in cash and exclude U.S. government-funded and third-party prime funded capital expenditures for ASUS’s subsidiaries and property installed by developers and conveyed to GSWC and BVES.

Schedule of reconciliation of total utility plant (a key figure for rate-making) to total consolidated assets

The following tables reconcile segment net property, plant and equipment to total consolidated assets (in thousands):

	As of March 31, 2026
							Total
					Contracted		Reportable		AWR		Less		Consolidated
	Water		Electric		Services		Segments		Parent		Eliminations		AWR
Total net property, plant and equipment (4)	$	2,114,302	$	194,252	$	21,139	$	2,329,693	$	—	$	—	$	2,329,693
Other assets	220,008		58,765		123,628		402,401		1,180,569		(1,178,523)		404,447
Total consolidated assets	$	2,334,310	$	253,017	$	144,767	$	2,732,094	$	1,180,569	$	(1,178,523)	$	2,734,140
	As of December 31, 2025
							Total
					Contracted		Reportable		AWR		Less		Consolidated
	Water		Electric		Services		Segments		Parent		Eliminations		AWR
Total net property, plant and equipment (4)	$	2,083,684	$	192,416	$	20,219	$	2,296,319	$	—	$	—	$	2,296,319
Other assets	232,178		61,928		126,437		420,543		1,176,760		(1,178,530)		418,773
Total consolidated assets	$	2,315,862	$	254,344	$	146,656	$	2,716,862	$	1,176,760	$	(1,178,530)	$	2,715,092

(4) The utility plant balances are net of respective accumulated provisions for depreciation.

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Summary of Significant Accounting Policies (Details) $ in Millions	3 Months Ended
	Mar. 31, 2026 USD ($) contract customer state registrant	Mar. 31, 2025 USD ($)
Summary of significant accounting policies
Number of customers	1,000,000
Number of states in which entity operates | state	10
Number of registrants filing combined report | registrant	2
GSWC | Water:
Summary of significant accounting policies
Number of customers	265,100
BVES
Summary of significant accounting policies
Payments to affiliate for corporate office administrative and general costs | $	$ 1.1	$ 1.0
BVES | Electric:
Summary of significant accounting policies
Number of customers	24,900
ASUS
Summary of significant accounting policies
Payments to affiliate for corporate office administrative and general costs | $	$ 1.7	$ 1.6
Bay State Utility Service LLC (" BSUS")
Summary of significant accounting policies
Number of contracts with 15 year contract | contract	1
Bay State Utility Service LLC (" BSUS") | Contracted services:
Summary of significant accounting policies
Period of fixed price contracts to operate and maintain water systems at various military bases	15 years
Maximum | ASUS
Summary of significant accounting policies
Period of fixed price contracts to operate and maintain water systems at various military bases	50 years

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Revenues - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2026 USD ($) contract
ASUS
Disaggregation of Revenue [Line Items]
Revenue recognized	$ 6.2
Revenue, remaining performance obligation, amount	$ 4,200.0
ASUS | Minimum
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	13 years
ASUS | Maximum
Disaggregation of Revenue [Line Items]
Period of fixed price contracts to operate and maintain water systems at various military bases	50 years
Revenue, remaining performance obligation, expected timing of satisfaction, period	48 years
Bay State Utility Service LLC (" BSUS")
Disaggregation of Revenue [Line Items]
Number of contracts with 15 year contract | contract	1
Golden State Water Company and Bear Valley Electric Service Inc. | Revenue Benchmark | Customer Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	90.00%
Contracted services: | Bay State Utility Service LLC (" BSUS")
Disaggregation of Revenue [Line Items]
Period of fixed price contracts to operate and maintain water systems at various military bases	15 years

XML

Revenues - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Disaggregation of Revenue [Line Items]
Total operating revenues	$ 169,191	$ 148,013
GOLDEN STATE WATER COMPANY
Disaggregation of Revenue [Line Items]
Total operating revenues	113,110	102,003
Water: | GOLDEN STATE WATER COMPANY
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	112,227	101,747
Total operating revenues	113,110	102,003
Electric: | BVES
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	19,395	13,776
Total operating revenues	18,657	15,002
Contracted services: | ASUS
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	37,424	31,008
Tariff-based revenues | Water: | GOLDEN STATE WATER COMPANY
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	111,195	100,331
Tariff-based revenues | Electric: | BVES
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	17,736	13,733
CPUC-approved surcharges (cost-recovery activities) | Water: | GOLDEN STATE WATER COMPANY
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	414	805
CPUC-approved surcharges (cost-recovery activities) | Electric: | BVES
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	1,659	43
Other | Water: | GOLDEN STATE WATER COMPANY
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	618	611
Alternative revenues program | Water: | GOLDEN STATE WATER COMPANY
Disaggregation of Revenue [Line Items]
Alternative revenue programs, net	883	256
Alternative revenues program | Electric: | BVES
Disaggregation of Revenue [Line Items]
Alternative revenue programs, net	(738)	1,226
Water | Contracted services: | ASUS
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	23,178	16,612
Wastewater | Contracted services: | ASUS
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	$ 14,246	$ 14,396

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Revenues - Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Disaggregation of Revenue [Line Items]
Unbilled receivable	$ 32,161	$ 26,621
ASUS
Disaggregation of Revenue [Line Items]
Unbilled receivable	8,919	5,048
Receivable from the U.S. government	57,428	74,060
Contract assets	32,915	31,507
Contract liabilities	$ 11,618	$ 11,735

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Regulatory Matters - Narrative (Details) - USD ($) $ in Thousands		3 Months Ended
	Apr. 08, 2026	Mar. 31, 2026	Dec. 31, 2025
Regulatory matters:
Net regulatory Assets		$ 92	$ 9,264
Golden State Water Company and Bear Valley Electric Service Inc.
Regulatory matters:
Net regulatory Assets		100
Regulatory asset		122,500
Regulatory liability		122,400
Regulatory asset not accruing carrying costs		44,700
Regulatory liabilities not accruing carrying costs		$ 118,300
Commercial paper, term		90 days
Golden State Water Company and Bear Valley Electric Service Inc. | Deferred Income Tax Charge
Regulatory matters:
Regulatory liabilities not accruing carrying costs		$ 66,900
Golden State Water Company and Bear Valley Electric Service Inc. | Pension Costs and Other Postretirement Benefit Costs
Regulatory matters:
Regulatory liabilities not accruing carrying costs		41,000
Golden State Water Company and Bear Valley Electric Service Inc. | PFAS Contamination Litigation Proceeds Memorandum Account
Regulatory matters:
Regulatory liabilities not accruing carrying costs		10,400
GSWC
Regulatory matters:
Net regulatory Assets		(41,788)	(36,994)
GSWC | Tyco | Subsequent Event
Regulatory matters:
Litigation settlement, amount awarded	$ 2,200
GSWC | Deferred Income Tax Charge
Regulatory matters:
Net regulatory Assets		(63,152)	(63,223)
GSWC | Pension Costs and Other Postretirement Benefit Costs
Regulatory matters:
Net regulatory Assets		(43,984)	(43,479)
GSWC | PFAS Contamination Litigation Proceeds Memorandum Account
Regulatory matters:
Net regulatory Assets		(10,406)	(10,987)
BVES
Regulatory matters:
Net regulatory Assets		41,880	46,258
Flowed-through deferred income taxes, net | Golden State Water Company and Bear Valley Electric Service Inc.
Regulatory matters:
Regulatory asset not accruing carrying costs		25,800
Flowed-through deferred income taxes, net | GSWC
Regulatory matters:
Net regulatory Assets		22,286	20,932
Derivative instrument memorandum account (Note 5)
Regulatory matters:
Regulatory asset not accruing carrying costs		15,700
Derivative instrument memorandum account (Note 5) | BVES
Regulatory matters:
Net regulatory Assets		15,708	15,503
Other Regulatory assets | Golden State Water Company and Bear Valley Electric Service Inc.
Regulatory matters:
Regulatory asset not accruing carrying costs		3,200
2022/2023 general rate case memorandum accounts (unbilled revenue) | GSWC
Regulatory matters:
Net regulatory Assets		18,814	22,107
2023/2024 General Rate Case Memorandum accounts ( unbilled revenue) | BVES
Regulatory matters:
Net regulatory Assets		7,237	8,221
Wildfire mitigation and other fire prevention related costs memorandum accounts | BVES
Regulatory matters:
Net regulatory Assets		$ 9,877	$ 11,336

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Regulatory Matters - Schedule of Regulatory Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Schedule of Regulatory Assets and Liabilities [Line Items]
Net regulatory Assets	$ 92	$ 9,264
GSWC
Schedule of Regulatory Assets and Liabilities [Line Items]
Net regulatory Assets	(41,788)	(36,994)
GSWC | Deferred Income Tax Charge
Schedule of Regulatory Assets and Liabilities [Line Items]
Net regulatory Assets	(63,152)	(63,223)
GSWC | Pension Costs and Other Postretirement Benefit Costs
Schedule of Regulatory Assets and Liabilities [Line Items]
Net regulatory Assets	(43,984)	(43,479)
GSWC | PFAS Contamination Litigation Proceeds Memorandum Account
Schedule of Regulatory Assets and Liabilities [Line Items]
Net regulatory Assets	(10,406)	(10,987)
GSWC | Other regulatory liabilities
Schedule of Regulatory Assets and Liabilities [Line Items]
Net regulatory Assets	(218)	(1,331)
BVES
Schedule of Regulatory Assets and Liabilities [Line Items]
Net regulatory Assets	41,880	46,258
BVES | Other regulatory liabilities
Schedule of Regulatory Assets and Liabilities [Line Items]
Net regulatory Assets	(4,624)	(4,015)
2022/2023 general rate case memorandum accounts (unbilled revenue) | GSWC
Schedule of Regulatory Assets and Liabilities [Line Items]
Net regulatory Assets	18,814	22,107
Flowed-through deferred income taxes, net | GSWC
Schedule of Regulatory Assets and Liabilities [Line Items]
Net regulatory Assets	22,286	20,932
Low income rate assistance balancing accounts | GSWC
Schedule of Regulatory Assets and Liabilities [Line Items]
Net regulatory Assets	11,502	10,582
Other regulatory assets | GSWC
Schedule of Regulatory Assets and Liabilities [Line Items]
Net regulatory Assets	23,370	28,405
Other regulatory assets | BVES
Schedule of Regulatory Assets and Liabilities [Line Items]
Net regulatory Assets	13,682	15,213
Derivative instrument memorandum account (Note 5) | BVES
Schedule of Regulatory Assets and Liabilities [Line Items]
Net regulatory Assets	15,708	15,503
2023/2024 General Rate Case Memorandum accounts ( unbilled revenue) | BVES
Schedule of Regulatory Assets and Liabilities [Line Items]
Net regulatory Assets	7,237	8,221
Wildfire mitigation and other fire prevention related costs memorandum accounts | BVES
Schedule of Regulatory Assets and Liabilities [Line Items]
Net regulatory Assets	$ 9,877	$ 11,336

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Earnings per Share/Capital Stock - Schedule of EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Basic:
Net income	$ 29,948	$ 26,844
Less: Impact from participating securities	87	81
Common shareholders earnings, basic	$ 29,861	$ 26,763
Weighted average Common Shares outstanding, basic (in shares)	39,111	38,253
Basic earnings per Common Share (in dollars per share)	$ 0.76	$ 0.70
Diluted:
Common shareholders earnings, basic	$ 29,861	$ 26,763
Undistributed earnings for dilutive restricted stock units	30	27
Total common shareholders earnings, diluted	$ 29,891	$ 26,790
Weighted average Common Shares outstanding, basic (in shares)	39,111	38,253
Stock-based compensation (in shares)	99	101
Weighted Average Number of Diluted Shares (in shares)	39,210	38,354
Diluted earnings per Common Share (in dollars per share)	$ 0.76	$ 0.70

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Earnings per Share/Capital Stock - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Feb. 27, 2024	Mar. 31, 2026	Mar. 31, 2025
Capital stock
Sale of stock, maximum consideration on transaction	$ 200,000
Agreement term (in years)	3 years
Sale of stock, number of shares issued in transaction (in shares)		84,237	334,548
Sale of stock, consideration received on transaction		$ 6,300	$ 25,800
Payments for commissions		100	400
Sale of Stock, remaining available for sale		34,300
Payments of stock issuance costs		$ 100	$ 100
Issuances of Common Shares under stock-based compensation plans (in shares)		25,946	23,014
Payment, tax withholding, share-based payment arrangement		$ 1,371	$ 1,301
Dividends paid		$ 19,699	$ 17,762
Dividends declared per common share (in dollars per share)		$ 0.5040	$ 0.4655
AWR
Capital stock
Dividends paid		$ 19,700	$ 17,800
GSWC
Capital stock
Payment, tax withholding, share-based payment arrangement		1,227	1,174
Dividends paid		$ 19,700	$ 0
Restricted Stock
Capital stock
Restricted stock units outstanding (in shares)		155,400	153,583

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Derivative Instruments - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2026 USD ($) MWh	Dec. 31, 2025 USD ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
BVES
Derivative Instruments, Gain (Loss) [Line Items]
Description of derivative activity volume | MWh	760,412
Commodity Contract
Derivative Instruments, Gain (Loss) [Line Items]
Fair value, net derivative liability	$ 15,700
Commodity Contract | BVES
Derivative Instruments, Gain (Loss) [Line Items]
Fair value, net derivative liability	$ 15,708	$ 15,503	$ 13,094	$ 8,823

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Derivative Instruments - Schedule of Fair Value (Details) - Commodity Contract - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at end of the period	$ (15,700)
BVES
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at beginning of the period	(15,503)	$ (8,823)
Unrealized (losses) gains on purchase power contracts	(205)	(4,271)
Fair value at end of the period	$ (15,708)	$ (13,094)

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Fair Value of Financial Instruments - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Mutual Funds | Fair Value, Inputs, Level 1
Fair value of financial instruments
Other Investments and Securities, at Cost	$ 47.1	$ 48.4

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Fair Value of Financial Instruments - Schedule of Outstanding Long-Term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Fair value of financial instruments
Unamortized debt issuance expense	$ 3,200	$ 3,400
Carrying Amount
Fair value of financial instruments
Long-term debt, fair value	794,185	794,310
Fair Value
Fair value of financial instruments
Long-term debt, fair value	776,792	790,820
GOLDEN STATE WATER COMPANY
Fair value of financial instruments
Unamortized debt issuance expense	2,900	3,000
GOLDEN STATE WATER COMPANY | Carrying Amount
Fair value of financial instruments
Long-term debt, fair value	709,185	709,310
GOLDEN STATE WATER COMPANY | Fair Value
Fair value of financial instruments
Long-term debt, fair value	$ 690,889	$ 703,319

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Income Taxes: (Details)	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
GSWC
Effective income tax rate
ETRs ( as a percent)	25.90%	24.70%
Parent
Effective income tax rate
ETRs ( as a percent)	24.80%	24.00%

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Employee Benefit Plans - Schedule of Net Periodic Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Pension Benefits
Components of Net Periodic Benefits Cost:
Service cost	$ 752	$ 774
Interest cost	2,713	2,706
Expected return on plan assets	(3,554)	(3,183)
Amortization of prior service cost	109	108
Amortization of actuarial (gain) loss	(481)	0
Net periodic benefits costs under accounting standards	(461)	405
Other Postretirement Benefits
Components of Net Periodic Benefits Cost:
Service cost	27	27
Interest cost	19	24
Expected return on plan assets	(179)	(161)
Amortization of prior service cost	0	0
Amortization of actuarial (gain) loss	(71)	(291)
Net periodic benefits costs under accounting standards	(204)	(401)
SERP
Components of Net Periodic Benefits Cost:
Service cost	202	181
Interest cost	506	485
Expected return on plan assets	0	0
Amortization of prior service cost	0	0
Amortization of actuarial (gain) loss	0	0
Net periodic benefits costs under accounting standards	$ 708	$ 666

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Employee Benefit Plans - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Defined Benefit Plan Disclosure [Line Items]
Increase (decrease) in regulatory assets and liabilities	$ (11,802)	$ (1,143)
GSWC
Defined Benefit Plan Disclosure [Line Items]
Increase (decrease) in regulatory assets and liabilities	(6,817)	(2,767)
Pension Benefits | GSWC
Defined Benefit Plan Disclosure [Line Items]
Regulatory adjustment — deferred	3,000
Pension Benefits | Water: | GSWC
Defined Benefit Plan Disclosure [Line Items]
Increase (decrease) in regulatory assets and liabilities	$ (900)	$ (300)

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Contingencies (Details) - Environmental Clean-Up and Remediation - GOLDEN STATE WATER COMPANY $ in Millions	Mar. 31, 2026 USD ($) plantSite
Loss Contingencies [Line Items]
Number of plant facilities | plantSite	1
Environmental costs recognized, capitalized	$ 7.0
Environmental loss contingencies paid by third party	1.5
Accrued liability for the estimated additional cost to complete the clean-up at the site	$ 1.3

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Business Segments - Narrative (Details)	3 Months Ended
	Mar. 31, 2026 segment
GSWC
Details of reportable segment
Number of reportable segments	1
AWR
Details of reportable segment
Number of reportable segments	3

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Business Segments - Schedule of Business Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Details of reportable segment
Total operating revenues	$ 169,191	$ 148,013
Supply costs	34,658	29,488
Other operation	11,268	10,490
Administrative and general	28,154	26,875
Depreciation and amortization	12,684	11,582
Maintenance	5,700	4,147
Property and other taxes	8,023	6,952
ASUS construction	17,333	12,933
Operating Income	51,371	45,546
Interest expense	(12,107)	(12,082)
Interest income	976	2,013
(Gain) loss on investments held in a trust	(1,272)	(586)
Income tax expense	9,872	8,462
Other segment items income (expense)	852	415
Net Income	29,948	26,844
Capital additions	49,051	67,565
Reportable Legal Entities
Details of reportable segment
Total operating revenues	169,191	148,013
Supply costs	34,658	29,488
Other operation	11,268	10,490
Administrative and general	28,152	26,874
Depreciation and amortization	12,684	11,582
Maintenance	5,700	4,147
Property and other taxes	8,023	6,952
ASUS construction	17,333	12,933
Operating Income	51,373	45,547
Interest expense	(10,716)	(10,777)
Interest income	968	1,995
(Gain) loss on investments held in a trust	(1,272)	(586)
Income tax expense	10,337	8,938
Other segment items income (expense)	795	415
Net Income	30,811	27,656
Capital additions	49,051	67,565
AWR | Intersegment Eliminations
Details of reportable segment
Total operating revenues	0	0
Supply costs	0	0
Other operation	0	0
Administrative and general	2	1
Depreciation and amortization	0	0
Maintenance	0	0
Property and other taxes	0	0
ASUS construction	0	0
Operating Income	(2)	(1)
Interest expense	(1,391)	(1,305)
Interest income	8	18
(Gain) loss on investments held in a trust	0	0
Income tax expense	(465)	(476)
Other segment items income (expense)	57	0
Net Income	(863)	(812)
Capital additions	0	0
GOLDEN STATE WATER COMPANY
Details of reportable segment
Total operating revenues	113,110	102,003
Other operation	7,144	6,675
Administrative and general	17,754	17,657
Depreciation and amortization	10,659	9,824
Maintenance	2,074	2,004
Property and other taxes	6,520	5,624
Operating Income	38,698	34,796
Interest expense	(9,392)	(9,328)
Interest income	478	1,272
(Gain) loss on investments held in a trust	(1,272)	(586)
Income tax expense	7,564	6,514
Net Income	21,683	19,906
GOLDEN STATE WATER COMPANY | Water:
Details of reportable segment
Total operating revenues	113,110	102,003
GOLDEN STATE WATER COMPANY | Reportable Legal Entities | Water:
Details of reportable segment
Total operating revenues	113,110	102,003
Supply costs	30,261	25,423
Other operation	7,144	6,675
Administrative and general	17,754	17,657
Depreciation and amortization	10,659	9,824
Maintenance	2,074	2,004
Property and other taxes	6,520	5,624
ASUS construction	0	0
Operating Income	38,698	34,796
Interest expense	(9,392)	(9,328)
Interest income	478	1,272
(Gain) loss on investments held in a trust	(1,272)	(586)
Income tax expense	7,564	6,514
Other segment items income (expense)	735	266
Net Income	21,683	19,906
Capital additions	42,244	57,858
BVES | Electric:
Details of reportable segment
Total operating revenues	18,657	15,002
BVES | Reportable Legal Entities | Electric:
Details of reportable segment
Total operating revenues	18,657	15,002
Supply costs	4,397	4,065
Other operation	1,341	1,241
Administrative and general	3,666	3,098
Depreciation and amortization	1,066	885
Maintenance	2,250	911
Property and other taxes	822	686
ASUS construction	0	0
Operating Income	5,115	4,116
Interest expense	(1,253)	(1,136)
Interest income	290	524
(Gain) loss on investments held in a trust	0	0
Income tax expense	884	1,047
Other segment items income (expense)	45	169
Net Income	3,313	2,626
Capital additions	4,932	7,853
ASUS | Reportable Legal Entities | Contracted services:
Details of reportable segment
Total operating revenues	37,424	31,008
Supply costs	0	0
Other operation	2,783	2,574
Administrative and general	6,732	6,119
Depreciation and amortization	959	873
Maintenance	1,376	1,232
Property and other taxes	681	642
ASUS construction	17,333	12,933
Operating Income	7,560	6,635
Interest expense	(71)	(313)
Interest income	200	199
(Gain) loss on investments held in a trust	0	0
Income tax expense	1,889	1,377
Other segment items income (expense)	15	(20)
Net Income	5,815	5,124
Capital additions	1,875	1,854
Golden State Water Company and Bear Valley Electric Service Inc.
Details of reportable segment
Depreciation on transportation equipment	$ 300	$ 300

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Business Segments - Schedule of PPE and Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Details of reportable segment
Total net property, plant and equipment (4)	$ 2,329,693	$ 2,296,319
Other assets	404,447	418,773
Total Assets	2,734,140	2,715,092
Reportable Legal Entities
Details of reportable segment
Total net property, plant and equipment (4)	2,329,693	2,296,319
Other assets	402,401	420,543
Total Assets	2,732,094	2,716,862
Intersegment Eliminations
Details of reportable segment
Total net property, plant and equipment (4)	0	0
Other assets	(1,178,523)	(1,178,530)
Total Assets	(1,178,523)	(1,178,530)
AWR | Intersegment Eliminations
Details of reportable segment
Total net property, plant and equipment (4)	0	0
Other assets	1,180,569	1,176,760
Total Assets	1,180,569	1,176,760
GOLDEN STATE WATER COMPANY
Details of reportable segment
Total net property, plant and equipment (4)	2,114,302	2,083,684
Total Assets	2,334,310	2,315,862
GOLDEN STATE WATER COMPANY | Reportable Legal Entities | Water:
Details of reportable segment
Total net property, plant and equipment (4)	2,114,302	2,083,684
Other assets	220,008	232,178
Total Assets	2,334,310	2,315,862
BVES | Reportable Legal Entities | Electric:
Details of reportable segment
Total net property, plant and equipment (4)	194,252	192,416
Other assets	58,765	61,928
Total Assets	253,017	254,344
ASUS | Reportable Legal Entities | Contracted services:
Details of reportable segment
Total net property, plant and equipment (4)	21,139	20,219
Other assets	123,628	126,437
Total Assets	$ 144,767	$ 146,656