10-Q

UNITED STATES

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, 2023

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 1-13883

CALIFORNIA WATER SERVICE GROUP

(Exact name of registrant as specified in its charter)

Delaware	77-0448994
(State or other jurisdiction	(I.R.S. Employer Identification No.)
of incorporation or organization)

1720 North First Street

San Jose, California 95112

(Address of principal executive offices)

408-367-8200

(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 Act:

Title of Each Class:	Trading Symbol(s)	Name of Each Exchange on Which Registered:
Common Stock, $0.01 par value per share	CWT	New York Stock Exchange

Indicate by check mark whether the 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 the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ý  No o

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit). Yes ý  No o

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:

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	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. o  

Indicate by check mark whether the registrant is a shell company (as defined in rule 12b-2 of the Exchange Act) Yes ☐  No ☒

As of March 31, 2023 — there were approximately 55,991,000 shares of common stock outstanding.

1

TABLE OF CONTENTS

	Page
PART I Financial Information	3
Item 1 Financial Statements	3
Condensed Consolidated Balance Sheets (unaudited) as of March 31, 2023 and December 31, 2022	3
Condensed Consolidated Statements of Operations (unaudited) For the Three Months Ended March 31, 2023 and 2022	4
Condensed Consolidated Statements of Cash Flows (unaudited) For the Three Months Ended March 31, 2023 and 2022	5
Notes to Unaudited Condensed Consolidated Financial Statements	6
Item 2 Management’s Discussion and Analysis of Financial Condition and Results of Operations	17
Item 3 Quantitative and Qualitative Disclosure about Market Risk	28
Item 4 Controls and Procedures	28
PART II Other Information	29
Item 1 Legal Proceedings	29
Item 1A Risk Factors	29
Item 6 Exhibits	30
Signatures	31

2

PART I FINANCIAL INFORMATION

Item 1.

FINANCIAL STATEMENTS

The condensed consolidated financial statements presented in this filing on Form 10-Q have been prepared by management and are unaudited.

CALIFORNIA WATER SERVICE GROUP

CONDENSED CONSOLIDATED BALANCE SHEETS

Unaudited (In thousands, except per share data)

	March 31, 2023		December 31, 2022
ASSETS
Utility plant:
Utility plant	$	4,612,350	$	4,536,272
Less accumulated depreciation and amortization	(1,508,913)		(1,477,402)
Net utility plant	3,103,437		3,058,870
Current assets:
Cash and cash equivalents	52,286		62,100
Restricted cash	34,153		22,925
Receivables:
Customers, net	46,539		55,079
Regulatory balancing accounts	50,335		66,826
Other, net	20,576		20,932
Unbilled revenue, net	29,546		33,140
Materials and supplies	13,287		12,564
Taxes, prepaid expenses, and other assets	22,561		21,969
Total current assets	269,283		295,535
Other assets:
Regulatory assets	293,263		283,620
Goodwill	36,814		36,814
Other assets	184,065		175,913
Total other assets	514,142		496,347
TOTAL ASSETS	$	3,886,862	$	3,850,752
CAPITALIZATION AND LIABILITIES
Capitalization:
Common stock, $0.01 par value; 136,000 shares authorized, 55,991 and 55,598 outstanding in 2023 and 2022, respectively	$	560	$	556
Additional paid-in capital	777,605		760,336
Retained earnings	520,031		556,698
Noncontrolling interests	4,792		4,804
Total equity	1,302,988		1,322,394
Long-term debt, net	1,052,337		1,052,487
Total capitalization	2,355,325		2,374,881
Current liabilities:
Current maturities of long-term debt, net	3,300		3,310
Short-term borrowings	130,000		70,000
Accounts payable	120,198		140,986
Regulatory balancing accounts	17,272		12,240
Accrued interest	16,790		6,490
Accrued expenses and other liabilities	62,744		61,624
Total current liabilities	350,304		294,650
Deferred income taxes	326,401		330,251
Pension	79,245		78,443
Regulatory liabilities and other	288,511		287,294
Advances for construction	199,305		199,832
Contributions in aid of construction	287,771		285,401
Commitments and contingencies (Note 10)
TOTAL CAPITALIZATION AND LIABILITIES	$	3,886,862	$	3,850,752

See Accompanying Notes to Unaudited Condensed Consolidated Financial Statements

3

CALIFORNIA WATER SERVICE GROUP

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

Unaudited (In thousands, except per share data)

For the three months ended	March 31, 2023		March 31, 2022
Operating revenue	$	131,100	$	172,993
Operating expenses:
Operations:
Water production costs	55,008		61,538
Administrative and general	35,986		33,411
Other operations	16,604		25,852
Maintenance	7,978		7,341
Depreciation and amortization	29,915		28,770
Income tax benefit	(5,644)		(1,417)
Property and other taxes	8,777		8,360
Total operating expenses	148,624		163,855
Net operating (loss) income	(17,524)		9,138
Other income and expenses:
Non-regulated revenue	4,623		5,197
Non-regulated expenses	(2,275)		(6,986)
Other components of net periodic benefit credit	5,221		4,014
Allowance for equity funds used during construction	1,404		975
Income tax expense on other income and expenses	(1,794)		(512)
Net other income	7,179		2,688
Interest expense:
Interest expense	12,818		11,495
Allowance for borrowed funds used during construction	(829)		(563)
Net interest expense	11,989		10,932
Net (loss) income	(22,334)		894
Net loss attributable to noncontrolling interests	(123)		(192)
Net (loss) income attributable to California Water Service Group	$	(22,211)	$	1,086
(Loss) earnings per share of common stock:
Basic	$	(0.40)	$	0.02
Diluted	$	(0.40)	$	0.02
Weighted average shares outstanding:
Basic	55,666		53,731
Diluted	55,666		53,775

 See Accompanying Notes to Unaudited Condensed Consolidated Financial Statements

4

CALIFORNIA WATER SERVICE GROUP

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

Unaudited (In thousands)

For the three months ended	March 31, 2023		March 31, 2022
Operating activities:
Net (loss) income	$	(22,334)	$	894
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	30,433		29,482
Change in value of life insurance contracts	(1,641)		2,918
Allowance for equity funds used during construction	(1,404)		(975)
Changes in operating assets and liabilities:
Receivables and unbilled revenue	17,089		(10,079)
Water Arrearages Payment Program	—		20,836
Accounts payable	(11,230)		(11,617)
Other current assets	(1,342)		(75)
Other current liabilities	10,024		12,656
Other changes in noncurrent assets and liabilities	1,375		10,153
Net cash provided by operating activities	20,970		54,193
Investing activities:
Utility plant expenditures	(81,980)		(68,496)
Life insurance proceeds	—		1,727
Purchase of life insurance contracts	—		(1,727)
Asset acquisition	(102)		(180)
Net cash used in investing activities	(82,082)		(68,676)
Financing activities:
Short-term borrowings, net of issuance costs of $1,552 for 2023 and $0 for 2022	93,448		30,000
Repayment of short-term borrowings	(35,000)		(15,000)
Repayment of long-term debt	(214)		(198)
Advances and contributions in aid of construction	3,696		7,774
Refunds of advances for construction	(2,248)		(2,355)
Repurchase of common stock	(1,542)		(1,674)
Issuance of common stock, net	18,842		564
Dividends paid	(14,456)		(13,429)
Net cash provided by financing activities	62,526		5,682
Change in cash, cash equivalents, and restricted cash	1,414		(8,801)
Cash, cash equivalents, and restricted cash at beginning of period	85,025		80,653
Cash, cash equivalents, and restricted cash at end of period	$	86,439	$	71,852
Supplemental information:
Cash paid for interest (net of amounts capitalized)	$	1,578	$	187
Supplemental disclosure of non-cash activities:
Accrued payables for investments in utility plant	$	42,038	$	57,733
Utility plant contribution by developers	$	7,032	$	5,771

 See Accompanying Notes to Unaudited Condensed Consolidated Financial Statements

5

CALIFORNIA WATER SERVICE GROUP

Notes to Unaudited Condensed Consolidated Financial Statements

March 31, 2023

Dollar amounts in thousands, unless otherwise stated

Note 1. Organization and Operations and Basis of Presentation

California Water Service Group (Company) is a holding company that provides water utility and other related services in California, Washington, New Mexico, Hawaii, and Texas through its wholly-owned and non-wholly owned subsidiaries. California Water Service Company (Cal Water), Washington Water Service Company (Washington Water), New Mexico Water Service Company (New Mexico Water), and Hawaii Water Service Company, Inc. (Hawaii Water), provide regulated utility services under the rules and regulations of their respective state’s regulatory commissions (jointly referred to as the Commissions). CWS Utility Services and HWS Utility Services LLC provide non-regulated water utility and utility-related services. TWSC, Inc. (Texas Water) holds regulated and contracted wastewater utilities.

The Company operates in one reportable segment, providing water and water related utility services.

Basis of Presentation

The unaudited condensed consolidated interim financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP) for interim financial information and in accordance with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X promulgated by the Securities and Exchange Commission (SEC) and therefore do not contain all of the information and footnotes required by GAAP and the SEC for annual financial statements. Interim financial information includes the Company's accounts and those of its wholly and non-wholly owned subsidiaries. The non-wholly owned subsidiary was consolidated using the voting interest model as the Company owns a majority of the voting interests in the non-wholly owned subsidiary. The interim unaudited condensed consolidated financial statements should be read in conjunction with the Company’s consolidated financial statements included in its Annual Report on Form 10-K for the year ended December 31, 2022 as filed with the SEC on March 1, 2023.

The preparation of the Company’s unaudited condensed consolidated interim financial statements in accordance with GAAP 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 balance sheet dates and the reported amounts of revenues and expenses for the periods presented. These include, but are not limited to, estimates and assumptions used in determining the Company’s regulatory asset and liability balances based upon probability assessments of regulatory recovery, revenues earned but not yet billed, asset retirement obligations, allowance for credit losses, pension and other employee benefit plan liabilities, and income tax-related assets and liabilities. Actual results could materially differ from these estimates.

In the opinion of management, the accompanying unaudited condensed consolidated interim financial statements reflect all adjustments, consisting of normal recurring transactions that are necessary to provide a fair presentation of the results for the periods covered.

Due to the seasonal nature of the water business, the results for interim periods are not indicative of the results for a 12-month period. Revenue and income are generally higher in the warm, dry summer months when water usage and sales are greater. Revenue and income are generally lower in the winter months when cooler temperatures and rainfall curtail water usage and sales.

Noncontrolling Interests

Noncontrolling interests in the Company’s condensed consolidated financial statements represents a 6.2% interest not owned by Texas Water in a consolidated subsidiary. Texas Water obtained control over the subsidiary on May 1, 2021. Since the Company controls this subsidiary, its financial statements are consolidated with those of the Company, and the noncontrolling owner’s 6.2% share of the subsidiary’s net assets and results of operations is deducted and reported as noncontrolling interests on the condensed consolidated balance sheet and as net loss attributable to noncontrolling interests in the condensed consolidated statement of operations. The Company reports noncontrolling interests in consolidated entities as a component of equity separate from the Company’s equity. The Company’s net (loss) income attributable to California Water Service Group excludes a net loss attributable to the noncontrolling interests.

6

Note 2. Summary of Significant Accounting Policies

Operating revenue

The following table disaggregates the Company’s operating revenue by source for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31
	2023		2022
Revenue from contracts with customers	$	145,225	$	158,933
Regulatory balancing account revenue	(14,125)		14,060
Total operating revenue	$	131,100	$	172,993

Revenue from contracts with customers

The Company principally generates operating revenue from contracts with customers by providing regulated water and wastewater services at tariff-rates authorized by the Commissions in the states in which they operate and non-regulated water and wastewater services at rates authorized by contracts with government agencies. Revenue from contracts with customers reflects amounts billed for the volume of consumption at authorized per unit rates, for a service charge, and for other authorized charges.

The Company satisfies its performance obligation to provide water and wastewater services over time as services are rendered. The Company applies the invoice practical expedient and recognizes revenue from contracts with customers in the amount for which the Company has a right to invoice. The Company has a right to invoice for the volume of consumption, for the service charge, and for other authorized charges.

The measurement of sales to customers is generally based on the reading of their meters, which occurs on a systematic basis throughout the month. At the end of each month, the Company estimates consumption since the date of the last meter reading and the corresponding unbilled revenue is recognized. The estimate is based upon the number of unbilled days that month and the average daily customer billing rate from the previous month (which fluctuates based upon customer usage).

Contract terms are generally short-term and at will by customers and, as a result, no separate financing component is recognized for the Company's collections from customers, which generally require payment within 30 days of billing. The Company applies judgment, based principally on historical payment experience, in estimating its customers’ ability to pay.

Certain customers are not billed for volumetric consumption, but are instead billed a flat rate at the beginning of each monthly service period. The amount billed is initially deferred and subsequently recognized over the monthly service period, as the performance obligation is satisfied. The deferred revenue balance or contract liability, which is included in "accrued expenses and other liabilities" on the unaudited condensed consolidated balance sheets, is inconsequential.

In the following table, revenue from contracts with customers is disaggregated by class of customers for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31
	2023		2022
Residential	$	84,035	$	91,743
Business	31,974		32,163
Multiple residential	14,997		14,817
Industrial	5,634		5,773
Public authorities	6,425		6,985
Other (a)	2,160		7,452
Total revenue from contracts with customers	$	145,225	$	158,933

(a) Other includes accrued unbilled revenue.

7

Regulatory balancing account revenue

Regulatory balancing account revenue is revenue related to revenue mechanisms authorized in California by the California Public Utilities Commission (CPUC), which allow the Company to recognize revenue when it is objectively determinable, probable of recovery and expected to be collected within 24 months of the year-end in which the revenue is recognized, and are not considered contracts with customers. To the extent that revenue is estimated to be collectible beyond 24 months, recognition is deferred. Due to the delay in the resolution of the most recent General Rate Case (GRC) filing in California in July of 2021 by Cal Water (2021 GRC Filing), the Company did not benefit from any revenue mechanisms in the first quarter of 2023. For 2022, the Company's authorized revenue mechanisms included the Water Revenue Adjustment Mechanism (WRAM).

The WRAM decoupled revenue from the volume of the sales and allowed the Company to recognize the adopted level of volumetric revenues. The variance between adopted volumetric revenues and actual billed volumetric revenues for metered accounts was recorded as regulatory balancing account revenue. No WRAM was recorded in 2023 as the revenue mechanism concluded on December 31, 2022.

Regulatory balancing account revenue also includes revenue that is recognized for balancing accounts when it is probable that future recovery of previously incurred costs or future refunds that are to be credited to customers will occur through the ratemaking process. These mechanisms, such as the Modified Cost Balancing Account (MCBA), Conservation Expense Balancing Account (CEBA), Pension Cost Balancing Account (PCBA), and Health Cost Balancing Account (HCBA), generally provide for recovery of the adopted levels of expenses for purchased water, purchased power, pump taxes, water conservation program costs, pension, and health care. Variances between adopted and actual costs were recorded as regulatory balancing account revenue in 2022. In 2023, in connection with the CPUC's disallowance of the use of the WRAM, the variances for CEBA, HCBA, and PCBA are recorded against the originating expense. The MCBA was not recorded in 2023 as the mechanism concluded on December 31, 2022.

The CPUC issued a decision effective August 27, 2020 requiring that Class A companies submitting GRC filings after the effective date be (i) precluded from proposing the use of a full decoupling WRAM in their next GRCs and (ii) allowed the use of Monterey-Style Water Revenue Adjustment Mechanisms (MWRAM). In addition, the CPUC's decision allowed for Incremental Cost Balancing Accounts (ICBAs) to replace the MCBA. The MWRAM tracks the difference between the revenue received for actual metered sales through the tiered volumetric rate and the revenue that would have been received with the same actual metered sales if a uniform rate had been in effect. The ICBA tracks differences between the authorized per-unit prices of water production costs and actual per-unit prices of water production costs. Cal Water complied with this decision in its 2021 GRC Filing and expects the MWRAM to be implemented in 2023 and effective retroactive back to January 1, 2023. For the first quarter of 2023, the Company did not record a regulatory asset or regulatory liability for the MWRAM or ICBAs.

Non-regulated Revenue

The following table disaggregates the Company’s non-regulated revenue by source for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31
	2023		2022
Operating and maintenance revenue	$	3,235	$	3,405
Other non-regulated revenue	782		1,150
Non-regulated revenue from contracts with customers	4,017		4,555
Lease revenue	606		642
Total non-regulated revenue	$	4,623	$	5,197

Operating and maintenance services are provided for non-regulated water and wastewater systems owned by private companies and municipalities. The Company negotiates formal agreements with the customers, under which they provide operating, maintenance and customer billing services related to the customers’ water system. The formal agreements outline the fee schedule for the services provided. The agreements typically call for a fee-per-service or a flat-rate amount per month. The Company satisfies its performance obligation of providing operating and maintenance services over time as services are rendered; as a result, the Company employs the invoice practical expedient and recognizes revenue in the amount that it has the right to invoice. Contract terms are generally short-term and, as a result, no separate financing component is recognized for its collections from customers, which generally require payment within 30 days of billing.

8

Other non-regulated revenue primarily relates to services for the design and installation of water mains and other water infrastructure for customers outside the regulated service areas and insurance program administration.

Lease revenue is not considered revenue from contracts with customers and is recognized following operating lease standards. The Company is the lessor in operating lease agreements with telecommunications companies under which cellular phone antennas are placed on the Company's property.

Allowance for credit losses

The Company measures expected credit losses for Customer Receivables, Other Receivables, and Unbilled Revenue on an aggregated level. These receivables are generally trade receivables due in one year or less or expected to be billed and collected in one year or less. The expected credit losses for Other Receivables and Unbilled Revenue are inconsequential. Customer receivables include receivables for water and wastewater services provided to residential customers, business, industrial, public authorities, and other customers. The expected credit losses for business, industrial, public authorities, and other customers are inconsequential. The overall risks related to the Company’s receivables are low as water and wastewater services are seen as essential services. The estimate for the allowance for credit losses is based on a historical loss ratio, in conjunction with a qualitative assessment of elements that impact the collectability of receivables to determine if the allowance for credit losses should be further adjusted in accordance with the accounting guidance for credit losses. Management contemplates available current information such as changes in economic factors, regulatory matters, industry trends, payment options and programs available to customers, and the methods that the Company is able to utilize to ensure payment.

The Company reviews its allowance for credit losses utilizing a quantitative assessment, which includes a trend analysis of customer billing and collection, aging by customer class, and unemployment rates. The Company also utilizes a qualitative assessment, which considers the future collectability on customer outstanding balances, management's estimate of the cash recovery, and a general assessment of the economic conditions of the locations the Company serves. Based on these assessments, the Company adjusted its allowance for credit losses accordingly.

The following table presents the activity in the allowance for credit losses for the 3-month period ended March 31, 2023 and 12-month period ended December 31, 2022:

Allowance for credit losses	March 31, 2023		December 31, 2022
Beginning balance	$	5,629	$	3,743
Provision for credit loss expense	939		5,887
Write-offs	(1,592)		(4,380)
Recoveries	141		379
Total ending allowance balance	$	5,117	$	5,629

Cash, Cash Equivalents, and Restricted Cash

The following table provides a reconciliation of cash, cash equivalents, and restricted cash within the Condensed Consolidated Balance Sheets that sum to the total of the same such amounts shown on the Condensed Consolidated Statements of Cash Flows (see Note 10 for further details on restricted cash):

	March 31, 2023		December 31, 2022
Cash and cash equivalents	$	52,286	$	62,100
Restricted cash	34,153		22,925
Total cash, cash equivalents, and restricted cash shown in the statements of cash flows	$	86,439	$	85,025

9

Note 3. Stock-based Compensation

The Company's equity incentive plan was approved and amended by stockholders on April 27, 2005 and May 20, 2014, respectively. The Company is authorized to issue awards up to 2,000,000 shares of common stock.

During the first three months of 2023, the Company granted Restricted Stock Awards (RSAs) to Officers and members of the Board of Directors. An RSA share represents the right to receive a restricted share of the Company's common stock and is valued based on the fair market value of the Company's common stock at the date of grant. RSAs granted to Officers vest over 36 months with the first year cliff vesting. In general, RSAs granted to Board members vest at the end of 12 months. The RSAs are recognized as expense evenly over 36 months for the shares granted to Officers and 12 months for the shares granted to Board members. As of March 31, 2023, there was approximately $3.5 million of total unrecognized compensation cost related to RSAs. The cost is expected to be recognized over a weighted average period of 2.0 years.

A summary of the status of the outstanding RSAs as of March 31, 2023 is presented below:

	Number of RSA Shares	Weighted-Average Grant-Date Fair Value
RSAs at January 1, 2023	52,066	$	55.77
Granted	42,301	55.46
Vested	(28,426)	56.02
Forfeited	—	—
RSAs at March 31, 2023	65,941	$	55.47

During the first three months of 2023, the Company granted performance-based Restricted Stock Units (RSUs) to Officers. An RSU represents the right to receive a share of the Company's common stock. Each award reflects a target number shares of common stock that may be issued to the award recipient. The 2023 awards may be earned upon the completion of a 3-year performance period. Whether RSUs are earned at the end of the performance period will be determined based on the achievement of certain performance objectives set by the Organization and Compensation Committee of the Board of Directors in connection with the issuance of the RSUs. The performance objectives are based on the Company's business plan covering the performance period. The performance objectives include achieving the budgeted return on equity, growth in stockholders' equity, and environmental, social, and governance targets. Depending on the results achieved during the 3-year performance period, the actual number of shares that a grant recipient receives at the end of the performance period may range from 0% to 200% of the target shares granted, provided that the grantee is continuously employed by the Company through the vesting date. If prior to the vesting date employment is terminated by reason of death, disability or normal retirement, then a pro rata portion of this award will vest. The RSUs are recognized as expense ratably over the 3-year performance period using a fair market value of the Company's common share at the date of grant and an estimated number of RSUs that will vest during the performance period. As of March 31, 2023, there was approximately $3.9 million of total unrecognized compensation cost related to RSUs. The cost is expected to be recognized over a weighted average period of 2.1 years.

A summary of the status of the outstanding RSUs as of March 31, 2023 is presented below:

	Number of RSU Shares	Weighted-Average Grant-Date Fair Value
RSUs at January 1, 2023	92,625	$	54.06
Granted	42,464	55.46
Performance criteria adjustment	14,822	56.84
Vested	(40,589)	56.84
Forfeited	(9,250)	53.66
RSUs at March 31, 2023	100,072	$	55.38

The Company has recorded compensation costs for the RSAs and RSUs that are included in administrative and general operating expenses in the amount of $0.1 million and $0.5 million for the three months ended March 31, 2023 and 2022, respectively.

10

Note 4. Equity

On April 29, 2022, the Company entered into an equity distribution agreement to sell shares of its common stock having an aggregate gross sales price of up to $350.0 million from time to time depending on market conditions through an at-the-market equity program over the next three years. The Company intends to use the net proceeds from these sales, after deducting commissions on such sales and offering expenses, for general corporate purposes, which may include working capital, construction and acquisition expenditures, investments and repurchases, and redemptions of securities. The Company sold 326,042 shares of common stock through its at-the-market equity program and raised proceeds of $18.2 million, net of $0.2 million in commissions paid under the equity distribution agreement, during the three months ended March 31, 2023.

As approved by the Company's stockholders at the 2022 Annual Meeting, effective July 26, 2022, the aggregate number of shares of common stock which the Company shall have authority to issue was increased from 68.0 million shares to 136.0 million shares. All of said 136.0 million shares shall be of one and the same series, namely shares with par value of $0.01 per share.

The Company’s changes in total equity for the three months ended March 31, 2023 and 2022 were as follows:

	Three months ended March 31, 2023
	Common Stock			Additional Paid-in Capital		Retained Earnings		Noncontrolling Interests		Total Equity
	Shares	Amount
	(In thousands)
Balance at January 1, 2023	55,598	$	556	$	760,336	$	556,698	$	4,804	$	1,322,394
Net loss	—	—		—		(22,211)		(123)		(22,334)
Issuance of common stock	420	4		17,380		—		—		17,384
Repurchase of common stock	(27)	—		—		—		—		—
Dividends paid on common stock ($0.2600 per share)	—	—		—		(14,456)		—		(14,456)
Investment in business with noncontrolling interest	—	—		(111)		—		111		—
Balance at March 31, 2023	55,991	560		777,605		520,031		4,792		1,302,988

	Three months ended March 31, 2022
	Common Stock			Additional Paid-in Capital		Retained Earnings		Noncontrolling Interests		Total Equity
	Shares	Amount
	(In thousands)
Balance at January 1, 2022	53,716	$	537	$	651,121	$	514,873	$	5,386	$	1,171,917
Net income (loss)	—	—		—		1,086		(192)		894
Issuance of common stock	85	1		1,106		—		—		1,107
Repurchase of common stock	(28)	—		(1,674)		—		—		(1,674)
Dividends paid on common stock ($0.2500 per share)	—	—		—		(13,429)		—		(13,429)
Investment in business with noncontrolling interest	—	—		(54)		—		54		—
Balance at March 31, 2022	53,773	538		650,499		502,530		5,248		1,158,815

11

Note 5. (Loss) Earnings Per Share of Common Stock

The computations of basic and diluted (loss) earnings per share of common stock are noted in the table below. Basic (loss) earnings per share of common stock is computed by dividing the net (loss) income attributable to California Water Service Group by the weighted average number of common shares outstanding during the period. RSAs are included in the weighted average common shares outstanding because the shares have all the same voting and dividend rights as issued and unrestricted common stock. Certain outstanding equity instruments are not included in the diluted (loss) earnings per share calculation because their inclusion would have been anti-dilutive.

	Three Months Ended March 31
	2023		2022
	(In thousands, except per share data)
Net (loss) income	$	(22,334)	$	894
Net loss attributable to noncontrolling interests	$	(123)	$	(192)
Net loss attributable to California Water Service Group	$	(22,211)	$	1,086
Weighted average common shares outstanding, basic	55,666		53,731
Weighted average common shares outstanding, dilutive	55,666		53,775
(Loss) earnings per share of common stock - basic	$	(0.40)	$	0.02
(Loss) earnings per share of common stock - diluted	$	(0.40)	$	0.02

Note 6. Pension Plan and Other Postretirement Benefits

The Company provides a qualified, defined-benefit, non-contributory pension plan for substantially all employees. The Company makes annual contributions to fund the amounts accrued for in the qualified pension plan. The Company also maintains an unfunded, non-qualified, supplemental executive retirement plan. The costs of the plans are charged to expense or are capitalized in utility plant as appropriate.

The Company offers medical, dental, vision, and life insurance benefits for retirees and their spouses and dependents. Participants are required to pay a premium, which offsets a portion of the cost.

Cash contributions made by the Company to the pension plans were $2.9 million and $5.1 million for the three months ended March 31, 2023 and 2022, respectively. Cash contributions made by the Company to the other postretirement benefit plans were $0.2 million and $0.1 million for the three months ended March 31, 2023 and 2022, respectively. The total 2023 estimated cash contribution to the pension plans and other postretirement benefits plans are expected to be approximately $2.9 million and $0.2 million, respectively.

The following tables list components of net periodic benefit costs for the pension plans and other postretirement benefits. The data listed under “pension plan” includes the qualified pension plan and the non-qualified supplemental executive retirement plan. The data listed under “other benefits” is for all other postretirement benefits.

	Three Months Ended March 31
	Pension Plan				Other Benefits
	2023		2022		2023		2022
Service cost	$	6,046	$	9,235	$	1,126	$	1,683
Interest cost	8,746		6,329		1,297		1,008
Expected return on plan assets	(13,421)		(11,307)		(2,636)		(2,482)
Amortization of prior service cost	131		242		39		39
Recognized net actuarial (gain) loss	(637)		999		(581)		(228)
Net periodic benefit cost (benefit)	$	865	$	5,498	$	(755)	$	20

Service cost portion of the pension plan and other postretirement benefits is recognized in "administrative and general" expenses within the Condensed Consolidated Statements of Operations. Other components of net periodic benefit costs include interest costs, expected return on plan assets, amortization of prior service costs, and recognized net actuarial loss and are reported together as "other components of net periodic benefit cost" within the Condensed Consolidated Statements of Operations.

12

Note 7. Short-term and Long-term Borrowings

On March 31, 2023, the Company and Cal Water entered into syndicated credit agreements, which provide for unsecured revolving credit facilities of up to an initial aggregate amount of $600.0 million for a term of five years. The Company and subsidiaries that it designates may borrow up to $200.0 million under the Company’s revolving credit facility (the Company facility). Cal Water may borrow up to $400.0 million under its revolving credit facility (the Cal Water facility). Additionally, the credit facilities may be increased by up to an incremental $150.0 million under the Cal Water facility and $50.0 million under the Company facility, subject in each case to certain conditions. At the Company’s or Cal Water's option, as applicable, borrowings under the Company and Cal Water facilities, as applicable, will bear interest annually at a rate equal to (i) the base rate, plus an applicable margin of 0.00% to 0.250%, depending on the Company and its subsidiaries' consolidated total capitalization ratio, or (ii) Term SOFR, plus an applicable margin of 0.800% to 1.250%, depending on the Company and its subsidiaries' consolidated total capitalization ratio.

The Company and Cal Water facilities contain affirmative and negative covenants and events of default customary for credit facilities of this type including, among other things, limitations and prohibitions relating to additional indebtedness, liens, mergers, and asset sales. Also, the Company and Cal Water facilities contain financial covenants governing the Company and its subsidiaries' consolidated total capitalization ratio and interest coverage ratio. As of March 31, 2023, the Company and Cal Water are in compliance with all of the covenant requirements and are eligible to use the full amount of the undrawn portion of the Company and Cal Water facilities, as applicable.

The outstanding borrowings on the Company facility as of each of March 31, 2023 and December 31, 2022 were $35.0 million. Outstanding borrowings on the Cal Water facility as of March 31, 2023 and December 31, 2022 were $95.0 million and $35.0 million, respectively. The average borrowing rate for borrowings on the Company and Cal Water facilities during the three months ended March 31, 2023 was 5.49% compared to 0.98% for the same period last year.

Note 8. Income Taxes

The Company adjusts its effective tax rate each quarter to be consistent with the estimated annual effective tax rate. The Company also records the tax effect of unusual or infrequently occurring discrete items.

The provision for income taxes is shown in the tables below:

	Three Months Ended March 31
	2023		2022
Income tax benefit	$	(3,850)	$	(905)

Income tax benefit increased $3.0 million to $3.9 million in the first quarter of 2023 as compared to $0.9 million income tax benefit in the first quarter of 2022, primarily due to an increase in the pre-tax loss in the first quarter of 2023 as compared to the first quarter of 2022.

The Company’s effective tax rate was 14.6% before discrete items as of March 31, 2023 and 12.0% as of March 31, 2022. The increase in the effective tax rate was primarily due to a decrease in the refunds of excess deferred federal income taxes.

The Company had unrecognized tax benefits of approximately $14.0 million and $16.2 million as of March 31, 2023 and 2022, respectively. Included in the balance of unrecognized tax benefits as of March 31, 2023 and 2022, is $4.5 million and $4.1 million, respectively, of tax benefits that, if recognized, would result in an adjustment to the Company’s effective tax rate. The Company does not expect its unrecognized tax benefits to change significantly within the next 12 months.

13

Note 9. Regulatory Assets and Liabilities

Regulatory assets and liabilities were comprised of the following as of March 31, 2023 and December 31, 2022:

	Recovery Period	March 31, 2023		December 31, 2022
Regulatory Assets
Retiree group health	Indefinitely	$	—	$	171
Property-related temporary differences (tax benefits flowed through to customers)	Indefinitely	143,546		143,546
Other accrued benefits	Indefinitely	25,974		24,946
Net WRAM and MCBA long-term accounts receivable	Various	49,243		41,558
Asset retirement obligations, net	Indefinitely	25,335		24,548
Interim rates memorandum account (IRMA) long-term accounts receivable	1 - 2 years	3,533		3,682
Tank coating	Various	16,507		16,395
Recoverable property losses	Various	2,998		3,144
PCBA	Various	19,233		19,091
General district balancing account receivable	1 year	383		377
Customer assistance program (CAP) and Rate support fund (RSF) accounts receivable	1 year	3,402		2,965
Other regulatory assets	Various	3,109		3,197
Total Regulatory Assets		$	293,263	$	283,620
Regulatory Liabilities
Future tax benefits due to customers		$	131,155	$	131,155
Pension and retiree group health		58,678		58,678
HCBA		15,312		14,318
PCBA		1,999		—
CEBA		860		6,036
Net WRAM and MCBA long-term payable		262		172
Other components of net periodic benefit cost		4,059		2,475
Other regulatory liabilities		1,025		845
Total Regulatory Liabilities		$	213,350	$	213,679

Short-term regulatory assets and liabilities are excluded from the above table.

The short-term regulatory assets were $50.3 million as of March 31, 2023 and $66.8 million as of December 31, 2022. The short-term regulatory assets as of March 31, 2023 primarily consist of net WRAM and MCBA and IRMA receivables. As of December 31, 2022, the short-term regulatory assets primarily consist of net WRAM and MCBA, IRMA, and PCBA receivables.

The short-term portions of regulatory liabilities were $17.3 million as of March 31, 2023 and $12.2 million as of December 31, 2022. The short-term regulatory liabilities as of March 31, 2023 primarily consist of TCJA and CEBA liabilities. As of December 31, 2022, the short-term regulatory liabilities primarily consist of TCJA liabilities.

Cost of Capital Application

On May 3, 2021, after an approved extension from a 2020 due date, Cal Water filed its required application with the CPUC to review its cost of capital for 2022 through 2024. Cal Water currently has an approved return on equity of 9.2%, a cost of debt of 5.51%, and a capital structure of 53.4% equity and 46.6% debt. Cal Water requested a return on equity of 10.35%, a cost of debt of 4.23%, and a capital structure of 53.4% equity and 46.6% debt. The California Public Advocates Office recommended a return on equity of 7.81%, a cost of debt of 4.23%, and a capital structure of 49.4% equity and 50.6% debt. Evidentiary hearings were held in May 2022 and the case was submitted to the CPUC at the end of the second quarter of 2022. In the first quarter of 2023, the CPUC extended its statutory deadline to issue a decision to August 10, 2023. In the

14

event that the CPUC adopts the cost of capital components retroactively to January 1, 2022, Cal Water estimates the reduced cost of debt, if adopted at Cal Water's proposed equity capital structure, would reduce authorized annual revenue by approximately $11.0 million. The actual amount could be different depending on the final cost of equity and capital structure adopted by the CPUC. Cal Water has not reserved for any potential outcome of the proceeding as Cal Water has determined that it is not probable that the proceeding will be approved retroactively to January 1, 2022.

Note 10. Commitments and Contingencies

Commitments

The Company has significant commitments to purchase water from water wholesalers. The Company also has operating and finance leases for water systems, offices, land easements, licenses, equipment, and other facilities. These commitments and leases are described in the Company's Annual Report on Form 10-K for the year ended December 31, 2022. 

On August 16, 2022, BVRT Utility Holding Company (BVRT), a majority owned subsidiary of Texas Water, entered into a long-term water supply agreement with the Guadalupe Blanco River Authority (GBRA) through its wholly owned subsidiary, Camino Real Utility (Camino Real). The Company has provided a limited guarantee to GBRA for the agreed upon obligations. GBRA is a water conservation and reclamation district established by the Texas Legislature that oversees water resources for 10 counties. Under the terms of the agreement with GBRA, Camino Real is contracted to receive up to 2,419 acre-feet of potable water annually. The GBRA agreement involves four off-takers, including Camino Real, and GBRA plans to extend a potable water pipeline from the City of Lockhart to the City of Mustang Ridge and surrounding areas. Camino Real is contracted to be the utility service provider in this area of the Austin metropolitan region and to provide potable water, recycled water, and wastewater services to portions of the City of Mustang Ridge and surrounding areas. In 2022, Camino Real committed $21.5 million for its share of the cost of the pipeline project and committed an additional $11.1 million for its share of the cost of the pipeline project in January of 2023. As of March 31, 2023, this committed cash has not been transferred to GBRA and is classified as part of restricted cash on the Condensed Consolidated Balance Sheets. The Company currently expects this committed cash to be transferred to GBRA in the second quarter of 2023.

Contingencies

Groundwater Contamination

The Company has undertaken litigation against third parties to recover past and anticipated costs related to groundwater contamination in our service areas. The cost of litigation is expensed as incurred and any settlement is first offset against such costs. The CPUC’s general policy requires all proceeds from groundwater contamination litigation to be used first to pay transactional expenses, then to make customers whole for water treatment costs to comply with the CPUC’s water quality standards. The CPUC allows for a risk-based consideration of contamination proceeds which exceed the costs of the remediation described above and may result in some sharing of proceeds with shareholders, determined on a case by case basis. The CPUC has authorized various memorandum accounts that allow the Company to track significant litigation costs and to request recovery of these costs in future filings.

Other Legal Matters

From time to time, the Company is involved in various disputes and litigation matters that arise in the ordinary course of business. The status of each significant matter is reviewed and assessed for potential financial exposure. If the potential loss from any claim or legal proceeding is considered probable and the amount of the range of loss can be estimated, a liability is accrued for the estimated loss in accordance with the accounting standards for contingencies. Legal proceedings are subject to uncertainties, and the outcomes are difficult to predict. Because of such uncertainties, accruals are based on the best information available at the time. While the outcome of these disputes and litigation matters cannot be predicted with any certainty, management does not believe, when taking into account existing reserves, the ultimate resolution of these matters will materially affect the Company’s financial position, results of operations, or cash flows. As of March 31, 2023 and December 31, 2022, the Company recognized a liability of $4.6 million and $5.3 million, respectively, for known legal matters primarily due to potable water leaks and other work-related legal matters. The cost of litigation is expensed as incurred and any settlement is first offset against such costs. Any settlement in excess of the cost to litigate is accounted for on a case by case basis, dependent on the nature of the settlement.

15

Note 11. Fair Value of Financial Assets and Liabilities

The accounting guidance for fair value measurements and disclosures provides a single definition of fair value and requires certain disclosures about assets and liabilities measured at fair value. A hierarchical framework for disclosing the observability of the inputs utilized in measuring assets and liabilities at fair value is established by this guidance. The three levels in the hierarchy are as follows:

Level 1 - Inputs to the valuation methodology are unadjusted quoted prices for identical assets or liabilities in active markets that the Company has the ability to access.

Level 2 - Inputs to the valuation methodology include:

•Quoted market prices for similar assets or liabilities in active markets;

•Quoted prices for identical or similar assets or liabilities in inactive markets;

•Inputs other than quoted prices that are observable for the asset or liability; and

•Inputs that are derived principally from or corroborated by observable market data by correlation or other means.

If the asset or liability has a specified (contractual) term, the level 2 input must be observable for substantially the full term of the asset or liability.

Level 3 - Inputs to the valuation methodology are unobservable and significant to the fair value measurement.

Specific valuation methods include the following:

Cash, Accounts receivable, short-term borrowings, and accounts payable carrying amounts approximated the fair value because of the short-term maturity of the instruments.

Long-term debt fair values were estimated using the published quoted market price of similar securities, if available, or the discounted cash flow analysis, based on the current rates available using a risk-free rate (a U.S. Treasury securities yield curve) plus a risk premium of 0.60%.

	March 31, 2023
			Fair Value
	Cost		Level 1	Level 2		Level 3	Total
Long-term debt, including current maturities, net	$	1,055,637	—	$	1,023,472	—	$	1,023,472

	December 31, 2022
			Fair Value
	Cost		Level 1		Level 2		Level 3		Total
Long-term debt, including current maturities, net	$	1,055,797	$	—	$	977,227	$	—	$	977,227

16

Note 12. Immaterial Restatement of Prior Period Financial Statements

Subsequent to the issuance of the Company's Consolidated Financial Statements for the year ended December 31, 2021, during the fourth quarter of 2022, the Company identified an immaterial error for a regulatory liability and corresponding decreases to operating revenue and deferred income taxes that were not recorded in 2019 associated with customer refunds. The error does not impact customer billings or cash refunded to customers.

The Company corrected the error in the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2022, through a restatement of the opening retained earnings balance for the year ended December 31, 2020. The Company believes the error is immaterial to the previously issued Financial Statements for prior periods.

The corrections to the Company’s retained earnings and total equity as of March 31, 2022, reported in note 4, were as follows:

	As of March 31, 2022
	As Previously Reported		Corrections		As Corrected
	(In thousands)
Retained earnings	$	513,593	$	(11,063)	$	502,530
Total equity	$	1,169,878	$	(11,063)	$	1,158,815

Item 2

MANAGEMENT’S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Dollar amounts in thousands unless otherwise stated.

FORWARD-LOOKING STATEMENTS

This quarterly report, including all documents incorporated by reference, contains forward-looking statements within the meaning established by the Private Securities Litigation Reform Act of 1995 (the PSLRA). The forward-looking statements are intended to qualify under provisions of the federal securities laws for "safe harbor" treatment established by the PSLRA. Forward-looking statements in this quarterly report are based on currently available information, expectations, estimates, assumptions and projections, and our management's beliefs, assumptions, judgments and expectations about us, the water utility industry and general economic conditions. These statements are not statements of historical fact. When used in our documents, statements that are not historical in nature, including words like "will," "would," “expects,” “intends,” “plans,” “believes,” “may,” "could," “estimates,” “assumes,” “anticipates,” “projects,” "progress," “predicts,” "hopes," "targets," “forecasts,” “should,” “seeks,” "indicates," or variations of these words or similar expressions are intended to identify forward-looking statements. Examples of forward-looking statements in this quarterly report include, but are not be limited to, statements describing our intention, indication or expectation regarding dividends or targeted payout ratio, our expectations, anticipations or beliefs regarding governmental, legislative, judicial, administrative or regulatory timelines, decisions, approvals, authorizations, requirements or other actions, including with respect to the 2021 GRC Filing, our cost of capital application, rate amounts or cost recovery mechanics, certain PFAS regulations, and associated impacts, such as our estimated revenue benefit or capital requirements, our intentions and plans to remediate the material weakness in our internal control over financial reporting, estimates of, or expectations regarding, capital expenditures, funding needs or other capital requirements, obligations, contingencies or commitments, our beliefs regarding adequacy of water supplies, our expectations regarding stock-based compensation and estimated contributions to our pension plans and other postretirement benefit plans, our estimated annual effective tax rate and expectations regarding tax benefits, our intentions regarding use of net proceeds from any future equity or debt issuances or borrowings or our intentions or anticipations regarding our sources of funding, capital structure or capital allocation plans. The forward-looking statements are not guarantees of future performance. They are based on numerous assumptions that we believe are reasonable, but they are open to a wide range of uncertainties and business risks. Consequently, actual results may vary materially from what is contained in a forward-looking statement.

Factors which may cause actual results to be different than those expected or anticipated include, but are not limited to:

•our ability to invest or apply the proceeds from the issuance of common stock in an accretive manner;

•governmental and regulatory commissions' decisions, including decisions on proper disposition of property;

•consequences of eminent domain actions relating to our water systems;

17

•changes in regulatory commissions' policies and procedures, such as the California Public Utilities Commission (CPUC)’s decision in 2020 to preclude companies from proposing fully decoupled WRAMs in their next GRC filing (which impacted our 2021 GRC Filing related to our operations commencing in 2023);

•the outcome and timeliness of regulatory commissions' actions concerning rate relief and other matters, including with respect to our 2021 GRC Filing and our Cost of Capital filing;

•increased risk of inverse condemnation losses as a result of climate change and drought;

•our ability to renew leases to operate water systems owned by others on beneficial terms;

•changes in California State Water Resources Control Board water quality standards;

•changes in environmental compliance and water quality requirements;

•electric power interruptions, especially as a result of Public Safety Power Shutoff (PSPS) programs;

•housing and customer growth;

•the impact of opposition to rate increases;

•our ability to recover costs;

•availability of water supplies;

•issues with the implementation, maintenance or security of our information technology systems;

•civil disturbances or terrorist threats or acts;

•the adequacy of our efforts to mitigate physical and cyber security risks and threats;

•the ability of our enterprise risk management processes to identify or address risks adequately;

•labor relations matters as we negotiate with the unions;

•changes in customer water use patterns and the effects of conservation, including as a result of drought conditions;

•our ability to complete, in a timely manner or at all, successfully integrate, and achieve anticipated benefits from announced acquisitions;

•the impact of weather, climate change, natural disasters, and actual or threatened public health emergencies, including disease outbreaks, on our operations, water quality, water availability, water sales and operating results and the adequacy of our emergency preparedness;

•restrictive covenants in or changes to the credit ratings on our current or future debt that could increase our financing costs or affect our ability to borrow, make payments on debt or pay dividends;

•risks associated with expanding our business and operations geographically;

•the impact of stagnating or worsening business and economic conditions, including inflationary pressures, general economic slowdown or a recession, increasing interest rates, instability of certain financial institutions, and changes in monetary policy;

•the impact of market conditions and volatility on unrealized gains or losses on our non-qualified benefit plan investments and our operating results;

•the impact of weather and timing of meter reads on our accrued unbilled revenue;

•the ongoing impact of the COVID-19 pandemic and related public health measures; and

•the risks set forth in “Risk Factors” included in the Company's Annual Report on Form 10-K for the year ended December 31, 2022.

18

In light of these risks, uncertainties and assumptions, investors are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date of this quarterly report or as of the date of any document incorporated by reference in this quarterly report, as applicable. When considering forward-looking statements, investors should keep in mind the cautionary statements in this quarterly report and the documents incorporated by reference. We are not under any obligation, and we expressly disclaim any obligation, to update or alter any forward-looking statements, whether as a result of new information, future events or otherwise.

CRITICAL ACCOUNTING ESTIMATES

We maintain our accounting records in accordance with GAAP and as directed by the Commissions to which our operations are subject. The process of preparing financial statements in accordance with GAAP requires the use of estimates on the part of management. The estimates used by management are based on historic experience and an understanding of current facts and circumstances. Management believes that the following accounting policies are critical because they involve a higher degree of complexity and judgment, and can have a material impact on our results of operations, financial condition, and cash flows of the business. These policies and their key characteristics are discussed in detail in the Company's Annual Report on Form 10-K for the year ended December 31, 2022 (2022 Annual Report on Form 10-K). They include:

•revenue recognition;

•regulated utility accounting;

•income taxes; and

•pension and postretirement health care benefits.

For the three months ended March 31, 2023, there were no changes in the methodology for computing critical accounting estimates, no additional accounting estimates met the standards for critical accounting policies, and there were no material changes to the important assumptions underlying the critical accounting estimates.

COVID-19

During 2022 and the first three months of 2023, the COVID-19 pandemic has not had a significant impact on our business or operations. We have resumed shutoffs for non-payment in all of our regulated utilities.

If we need to close any of our facilities due to outbreaks of COVID-19 or if a critical number of our employees become too ill to work, our business operations could be materially adversely affected in a rapid manner. Company employees have returned to the office full-time. We seek to be vigilant for employee and customer safety, we seek to encourage and incentivize vaccination, and our employees are required to follow local masking rules as applicable. The impact of the COVID-19 pandemic is fluid and continues to evolve, and therefore, we cannot predict the extent to which our business, results of operations, financial condition or liquidity will ultimately be impacted.

2021 GRC FILING

On July 2, 2021, Cal Water filed its 2021 GRC requesting water infrastructure improvements of $1.0 billion in accordance with the rate case plan for all of its regulated operating districts (except Grand Oaks) for the years 2022, 2023, and 2024. A partial settlement with the California Public Advocates Office primarily addressing non-revenue matters was submitted on September 2, 2022. The CPUC continues to evaluate the proposal along with proposals of other parties. A final decision on the case was previously expected to be issued in late 2022 in accordance with the CPUC's rate case plan, with new rates going into effect on January 1, 2023; however, due to unspecified delays at the CPUC, the timing of a final decision is uncertain. As part of the 2021 GRC Filing, Cal Water has proposed the use of a MWRAM and ICBA as the CPUC issued a decision effective August 27, 2020 requiring that Class A companies submitting GRC filings after the effective date be (i) precluded from proposing the use of a full decoupling WRAM in their next GRCs and (ii) allowed the use of MWRAM. In addition, the CPUC's decision allowed ICBAs to replace the MCBA. We expect the MWRAM to be implemented in 2023 and effective retroactive back to January 1, 2023. For the first quarter of 2023, we did not record a regulatory asset or regulatory liability for the MWRAM and ICBA mechanisms. In addition, we did not record WRAM or MCBA adjustments in the first quarter of 2023, as the mechanisms concluded on December 31, 2022.

19

INTERIM RATES MEMORANDUM ACCOUNT (IRMA) AND DROUGHT RESPONSE MEMORANDUM ACCOUNT (DREMA)

The IRMA tracks the difference between the current rates that continue to be billed starting January 1, 2023 (considered to be interim rates), and the rates that will eventually be approved pursuant to the CPUC's decision concerning Cal Water's 2021 GRC Filing plus any additional revenue changes approved since July 1, 2021 (final rates).

The DREMA tracks lost revenues associated with reduced sales revenue when customer demand is affected by requests for voluntary and mandatory usage reductions in California and is in effect for us for the first quarter of 2023 as our regulated service territories in California were under voluntary and mandatory usage reductions. The final value of the DREMA will depend on the resolution of the 2021 GRC Filing.

First quarter 2023 operating revenue does not include any benefit of new revenue mechanisms (MWRAM and DREMA) or rate relief (tracked in the IRMA) due to the delay in the approval of our 2021 GRC Filing. We currently estimate the adverse impact of the delayed decision on first quarter 2023 operating revenue to be between approximately $24.0 million and $34.0 million, which is based on the current positions of the parties to the 2021 GRC Filing and consumption driven regulatory mechanisms.

RESULTS OF THE THREE MONTHS ENDED MARCH 31, 2023 OPERATIONS

COMPARED TO THE THREE MONTHS ENDED MARCH 31, 2022 OPERATIONS

Dollar amounts in thousands, unless otherwise stated 

Overview

Net (Loss) Income Attributable to California Water Service Group

Net loss attributable to California Water Service Group for the first three months of 2023 was $22.2 million or $0.40 loss per diluted common share, compared to net income attributable to California Water Service Group of $1.1 million or $0.02 earnings per diluted common share for the first three months of 2022.

The $23.3 million decrease in net income was primarily due to a decrease in operating revenue of $41.9 million partially offset by a decrease in total operating expenses of $15.3 million. The total operating expense decrease was primarily due to a decrease in water production costs of $6.5 million, a decrease in other operations expenses of $9.2 million, and an increase in income tax benefit of $4.2 million. These decreases were partially offset by increases in administrative and general expense of $2.6 million, depreciation and amortization expenses of $1.1 million and maintenance expenses of $0.6 million. Additionally, there was an increase of $4.5 million in net other income, primarily due to a $1.7 million unrealized gain on non-qualified benefit plan investments during the first quarter of 2023 compared to a $2.9 million unrealized loss on certain non-qualified benefit plan investments in the first quarter of 2022.

The change in unrealized gains on non-qualified benefit plan investments was caused by favorable market conditions, which is a factor outside our immediate control. Our net income and net other income in future periods are expected to continue to be similarly affected, potentially significantly, by increases or decreases in unrealized gains or losses on non-qualified benefit plan investments, particularly during periods of significant market volatility or significantly favorable or unfavorable market conditions.

Operating Revenue

Operating revenue decreased $41.9 million, or 24.2%, to $131.1 million for the first three months of 2023 as compared to the first three months of 2022, with such change attributed to the following:

Net change due to rate changes, usage, and other (1)	$	(12,910)
WRAM revenue (2)	(3,781)
MCBA revenue (3)	(8,291)
Other balancing account revenue (4)	1,847
Deferral of revenue (5)	(18,758)
Net operating revenue decrease	$	(41,893)

1.The net change due to rate changes, usage, and other in the above table was primarily driven by an 8.8% decrease in customer usage, which we believe is primarily due to higher winter precipitation in our California service territories and water conservation compared to the same period in 2022.

20

2.WRAM revenue decrease is due to the mechanism concluding as of December 31, 2022; as a result, no WRAM revenue was recorded for the first quarter of 2023. In the first quarter of 2022, we recognized $3.8 million of WRAM revenue as actual billed volumetric revenue was lower than adopted volumetric revenue.

3.MCBA revenue decrease is due to the mechanism concluding as of December 31, 2022; as a result, no MCBA revenue was recorded for the first quarter of 2023. In the first quarter of 2022, we recognized $8.3 million of MCBA revenue as actual water production costs were higher than adopted water production costs. As required by the MCBA mechanism, the difference in actual water production costs and adopted water production costs in California was recorded to operating revenue.

4.The other balancing account revenue consists of the pension, conservation and health care balancing account revenues. Pension and conservation balancing account revenues are the differences between actual expenses and adopted rate recovery. Health care balancing account revenue is 85% of the difference between actual health care expenses and adopted rate recovery. In the first three months of 2023, the adjustments for these balancing accounts was recorded as an increase to the originating expense accounts by $3.4 million rather than as an operating revenue decrease. In the first three months of 2022, actual pension and health care costs were below the adopted costs and a decrease to revenue of $1.8 million was recognized for the difference.

5.The deferral of revenue consists of amounts that are expected to be collected from customers beyond 24 months following the end of the accounting period in which these revenues were recorded. The deferral increased in the first three months of 2023 as compared to the first three months of 2022 primarily due to an increase in the net WRAM and MCBA balance and the recovery periods for this net balance extending beyond 24 months from the end of the accounting period as requested in the April 2023 WRAM/MCBA advice letter filing.

Total Operating Expenses

Total operating expenses decreased $15.3 million, or 9.3%, to $148.6 million for the first three months of 2023, as compared to $163.9 million for the first three months of 2023.

Water production costs consists of purchased water, purchased power, and pump taxes. It represents the largest component of total operating expenses, accounting for approximately 37.0% of total operating expenses in the first three months of 2023 as compared to 37.6% of total operating expenses in the first three months of 2022. Water production costs decreased 10.6% in the first three months of 2023 as compared to the same period last year primarily due to an 8.8% decrease in customer usage, which we believe is primarily due to higher winter precipitation in our California service territories and water conservation compared to the same period in 2022.

Sources of water as a percent of total water production are listed in the following table:

	Three Months Ended March 31
	2023		2022
Well production	48	%	49	%
Purchased	49	%	50	%
Surface	3	%	1	%
Total	100	%	100	%

The components of water production costs are shown in the table below:

	Three Months Ended March 31
	2023		2022		Change
Purchased water	$	42,738	$	48,792	$	(6,054)
Purchased power	8,390		8,399		(9)
Pump taxes	3,880		4,347		(467)
Total	$	55,008	$	61,538	$	(6,530)

21

Administrative and general expenses increased $2.6 million, or 7.7%, to $36.0 million in the first three months of 2023, as compared to $33.4 million in the first three months of 2022. The increase was primarily due to increases in labor costs of $2.5 million primarily driven by annual increases in employee wages, employee medical costs of $0.6 million, company 401k matches of $0.4 million, and travel and meals costs of $0.4 million. The increases were partially offset by decreased uninsured loss costs of $1.6 million. Changes in employee pension benefits and employee and retiree medical costs for regulated California operations generally do not affect net income, as the Company has been allowed by the CPUC to record these costs in balancing accounts for future recovery.

Other operations expenses decreased $9.3 million, or 35.8%, to $16.6 million in the first three months of 2023, as compared to $25.9 million in the first three months of 2022. The decrease was primarily due to increase in deferred costs associated with deferred revenue of $15.4 million (see deferral of revenue above), which was partially offset by increases in water treatment costs of $1.9 million, employee labor costs of $1.0 million, credit losses of $0.9 million, waste water production and treatment costs of $0.9 million, district office maintenance costs of $0.6 million, conservation program costs of $0.4 million, and customer accounts costs of $0.3 million. Changes in conservation program expense for regulated California operations generally do not affect net income, as the Company has been allowed by the CPUC to record these costs in balancing accounts for future recovery.

Maintenance expense increased $0.7 million, or 8.9%, to $8.0 million in the first three months of 2023, as compared to $7.3 million in the first three months of 2022, mostly due to an increase in repair costs of transmissions and distribution mains and equipment.

Depreciation and amortization expense increased $1.1 million, or 4.0%, to $29.9 million in the first three months of 2023, as compared to $28.8 million in the first three months of 2022, mostly due to utility plant placed in service in 2022.

Income tax benefit increased $4.2 million to $5.6 million in the first three months of 2023, as compared to $1.4 million in the first three months of 2022. The increase in income tax benefit was primarily due to an increase in the pre-tax operating loss in the first three months of 2023 as compared to the same period of 2022.

Property and other taxes increased $0.4 million to $8.8 million in the first three months of 2023, as compared to $8.4 million in the same period of 2022, mostly due to an increase in assessed property values.

Other Income and Expenses

Net other income increased $4.5 million to $7.2 million in the first three months of 2023, as compared to net other income of $2.7 million in the first three months of 2022, due primarily to a $4.6 million increase in unrealized gains on non-qualified benefit plan investments and a $1.2 million increase in other components of net periodic benefit credit, which was partially offset by a $0.4 million gain on company owned life insurance in the first quarter of 2022.

Interest Expense

Net interest expense increased $1.1 million, or 9.7%, to $12.0 million in the first three months of 2023, as compared to $10.9 million in the first three months of 2022. The increase was due primarily to an increase in interest rates and higher outstanding line of credit balances.

REGULATORY MATTERS

California Regulatory Activity

2021 GRC Interim Rates

In June of 2022, Cal Water filed a motion requesting authority for the establishment of an IRMA in the event the CPUC did not issue a final decision for the 2021 GRC Filing in time for new rates to be implemented on January 1, 2023. In November of 2022, the Administrative Law Judge (ALJ) granted Cal Water’s request for the IRMA. Accordingly, on December 27, 2022, Cal Water requested that the IRMA, which was approved by the CPUC, track the difference between interim rates and final rates. After the CPUC's decision is issued and final rates are implemented, then Cal Water expects to file for recovery of the IRMA. Once approved, customer bills are expected to be adjusted to account for the difference between interim rates and final rates back to January 1, 2023.

In January of 2023, Cal Water filed a motion requesting a modification to the November 2022 ruling to apply an inflationary rate increase to interim rates. In the motion, Cal Water requested inflationary rate increases of 1.5% in Marysville and 4% for all other ratemaking areas except Selma, Travis Air Force Base, and Visalia for whom a rate increase was not requested. In February of 2023, the ALJ granted Cal Water's request. Cal Water is expecting to implement the increased interim inflation rates on May 5, 2023.

22

2021 Cost of Capital Application

On May 3, 2021, after an approved extension from a 2020 due date, Cal Water filed its required application with the CPUC to review its cost of capital for 2022 through 2024. Cal Water currently has an approved return on equity of 9.2%, a cost of debt of 5.51%, and a capital structure of 53.4% equity and 46.6% debt. Cal Water requested a return on equity of 10.35%, a cost of debt of 4.23%, and a capital structure of 53.4% equity and 46.6% debt. The California Public Advocates Office recommended a return on equity of 7.81%, a cost of debt of 4.23%, and a capital structure of 49.4% equity and 50.6% debt. Evidentiary hearings were held in May 2022 and the case was submitted to the CPUC at the end of the second quarter of 2022. In the first quarter 2023, the CPUC extended its statutory deadline to issue a decision to August 10, 2023. In the event that the CPUC adopts the cost of capital components retroactively to January 1, 2022, we estimate the reduced cost of debt, if adopted at our proposed equity capital structure, would reduce authorized annual revenue by approximately $11.0 million. The actual amount could be different depending on the final cost of equity and capital structure adopted by the CPUC. We have not reserved for any potential outcome of the proceeding as we have determined that it is not probable that the proceeding will be approved retroactively to January 1, 2022.

California Drought Memorandum Account (DRMA)

In June 2021, Cal Water submitted advice letters to request a DRMA to track the incremental operational and administrative costs incurred to further implement updated Rule 14.1 for voluntary conservation measures and Schedule 14.1 for implementation of our Water Shortage Contingency Plan, including activities related to enhanced conservation efforts, staffing, and capital expenditures to ensure a safe, reliable supply of water. The DRMA would also track monies paid by customers for fines, penalties, or other compliance measures associated with water use violations; and penalties paid by Cal Water to its water wholesalers. The DRMA was approved by the CPUC with an effective date of June 14, 2021. As of March 31, 2023, Cal Water has incurred $2.2 million of cumulative DRMA related costs, of which $0.3 million was incurred in the first three months of 2023.

California's Governor issued a drought declaration for all California counties through a series of State of Emergency Proclamations. Given these drought proclamations and current water usage levels in all of its service areas, Cal Water activated Stage 2 of the “Water Use Restrictions of its Water Shortage Contingency Plan (WSCP)” of Schedule 14.1 in all of its service areas; as a result, Cal Water saw an increase in DRMA related costs in 2022.

In Stage 1, irrigating ornamental landscape with potable water is prohibited during the hours of 8:00 a.m. and 6:00 p.m. For Stage 2, irrigating ornamental landscapes with potable water is limited to no more than three days per week as well as prohibited during the hours of 8:00 a.m. and 6:00 p.m. In addition, this stage states that new connections may not install single-pass cooling systems for air conditioning or other cooling system applications unless required for health or safety reasons.

On March 24, 2023, the Governor issued an Executive Order (EO) that, among other things, ended the voluntary 15% water conservation target and ended the requirement that local water agencies implement Stage 2 of their drought contingency plans. This EO maintained the ban on wasteful water uses and retained the State of Emergency for all 58 California counties to allow for drought response and recovery efforts to continue.

Expense Offset Requests

Expense offsets are dollar-for-dollar increases in revenue to match increased expenses, and therefore do not affect net operating income. In December of 2022, Cal Water submitted an advice letter to request offsets for increases in purchased water costs and pump taxes in five of its regulated districts totaling $5.1 million. The new rates were implemented on January 1, 2023.

WRAM/MCBA Filings

In April of 2023, Cal Water submitted an advice letter to true up the revenue under-collections for the 2022 annual WRAMs/MCBAs of its regulated districts. A net under-collection of $76.7 million is being recovered from customers in the form of 12, 18, and greater-than-18-month surcharges. The new surcharges incorporate net WRAM/MCBA balances that were previously approved for recovery and are expected to be implemented on May 5, 2023, except for Kern River Valley’s surcharge, which is expected to be implemented on January 15, 2024.

23

2018 GRC CEBA Filing

In March of 2023, Cal Water submitted an advice letter to amortize the CEBA from the 2018 GRC that tracked the difference between adopted and actual costs for the period of 2020-2022. $6.2 million is expected to be refunded to customers in some districts in the form of one-time or 12-month surcredits as actual conservation program costs during 2020-2022 were lower than the adopted conservation program costs. The new surcredits are expected to be implemented on May 5, 2023.

Regulatory Activity - Other States

2023 Washington Water GRC (Washington Water)

On April 10, 2023, Washington Water filed a GRC application with the Washington Utilities and Transportation Commission requesting an annual revenue increase of $3.0 million for its East Pierce Water System phased in over two years and an annual revenue increase of $0.6 million for its legacy Washington Water system. Washington Water has requested an effective date of July 14, 2023 for new rates.

Pukalani GRC (Hawaii Water)

On December 30, 2022, Hawaii Water filed a GRC application with the Hawaii Public Utilities Commission requesting an annual revenue increase of $0.6 million phased in over two years. Hawaii Water is requesting a fourth quarter of 2023 effective date for new rates.

LIQUIDITY

Cash flow from Operations

Cash flow from operations for the first three months of 2023 was $21.0 million compared to $54.2 million for the same period in 2022. The decrease in the first three months of 2023 as compared to 2022 was primarily due to net receipt of $20.8 million from the Water Arrearages Payment Program in 2022. Cash generated by operations varies during the year due to customer billings and timing of collections and contributions to our benefit plans.

During the first three months of 2023, we made contributions of $2.9 million to our employee pension plan compared to contributions of $5.1 million during the first three months of 2022. During the first three months of 2023, we made contributions of $0.2 million to the other postretirement benefit plans compared to contributions of $0.1 million during the first three months of 2022. The full-year 2023 estimated cash contribution to the pension plans and other postretirement benefits plans are expected to be approximately $2.9 million and $0.2 million, respectively.

The water business is seasonal. Billed revenue is lower in the cool, wet winter months when less water is used compared to the warm, dry summer months when water use is highest. This seasonality results in the possible need for short-term borrowings under the Company and Cal Water facilities in the event cash is not available to cover operating costs during the winter period. The increase in cash flows during the summer allows short-term borrowings to be paid down. Customer water usage can be lower than normal in drought years and when greater-than-normal precipitation falls in our service areas or temperatures are lower than normal, especially in the summer months.

Investing Activities

During the first three months of 2023 and 2022, we used $82.0 million and $68.5 million, respectively, of cash for Company-funded and developer-funded utility plant expenditures. Annual expenditures fluctuate each year due to the availability of construction resources and our ability to obtain construction permits in a timely manner. For 2023, the Company's capital program will be dependent in part on the timing and nature of regulatory approvals in connection with Cal Water's 2021 GRC Filing. The Company proposed to the CPUC spending $1.0 billion on water infrastructure investments in 2022-2024. Capital expenditures in California are evaluated in the context of the pending GRC Filing and may change as the case moves forward.

Financing Activities

Net cash provided by financing activities was $62.5 million during the first three months of 2023 compared to $5.7 million of net cash provided by financing activities for the same period in 2022. For 2023, this includes our issuance of $18.2 million of Company common stock through our at-the-market equity program and $0.6 million through our employee stock purchase plan. For 2022, this includes our issuance of $0.6 million through our employee stock purchase plan.

24

During the first three months of 2023 and 2022, we borrowed $95.0 million and $30.0 million, respectively, on our previous unsecured revolving credit facilities. We made a repayment on our previous unsecured revolving credit facilities of $35.0 million and $15.0 million during the first three months of 2023 and 2022, respectively. During the first three months of 2023, we also paid $1.6 million in issuance costs for the Company and Cal Water facilities entered into on March 31, 2023, as described below.

On March 31, 2023, the Company and Cal Water entered into the Company and Cal Water facilities, which provide for unsecured revolving credit facilities of up to an initial aggregate amount of $600.0 million for a term of five years. The Company and subsidiaries that it designates may borrow up to $200.0 million under the Company facility. Cal Water may borrow up to $400.0 million under the Cal Water facility. Additionally, the credit facilities may be increased by up to an incremental $150.0 million under the Cal Water facility and $50.0 million under the Company facility, subject in each case to certain conditions.

The net WRAM and MCBA receivable balances were $100.3 million and $79.6 million as of March 31, 2023 and 2022, respectively. The receivable balances were primarily financed by Cal Water using short-term and long-term financing arrangements to meet operational cash requirements. Interest on the receivable balances, which represents the interest recoverable from customers, is limited to the then-current 90-day commercial paper rates, which typically are significantly lower than Cal Water’s short and long-term financing rates.

Short-term and Long-term Financing

During the first three months of 2023, we utilized cash generated from operations, borrowings on our previous unsecured revolving credit facilities, and cash received from the sale of Company common stock through our at-the-market equity program to fund operations and capital investments.

In future periods, management anticipates funding our utility plant needs through a relatively balanced approach between long term debt and equity.

Short-term liquidity is provided by the Company and Cal Water facilities and internally generated funds. Long-term financing is accomplished through the use of both debt and equity. The Company and subsidiaries that it designates may borrow up to $200.0 million under the Company facility. Cal Water may borrow up to $400.0 million under the Cal Water facility; however, all borrowings must be repaid within 12 months unless a different period is required or authorized by the CPUC. The proceeds from the Company and Cal Water facilities may be used for working capital purposes.

As of March 31, 2023 and December 31, 2022, there were short-term borrowings of $130.0 million and $70.0 million, respectively, outstanding on the Company and Cal Water facilities.

Given our ability to access our lines of credit on a daily basis, cash balances are managed to levels required for daily cash needs and excess cash is invested in short-term or cash equivalent instruments. Minimal operating levels of cash are maintained for Washington Water, New Mexico Water, Hawaii Water and Texas Water.

The Company and Cal Water facilities contain affirmative and negative covenants and events of default customary for credit facilities of this type including, among other things, limitations and prohibitions relating to additional indebtedness, liens, mergers, and asset sales. Also, the Company and Cal Water facilities contain financial covenants governing the Company and its subsidiaries’ consolidated total capitalization ratio not to exceed 66.7% and an interest coverage ratio of three or more. As of March 31, 2023, we are in compliance with all of the covenant requirements and are eligible to use the full amount of the undrawn portion of the Company and Cal Water facilities.

Long-term financing, which includes First Mortgage Bonds, other debt securities, and common stock, has typically been used to replace short-term borrowings and fund utility plant expenditures. Internally generated funds, after making dividend payments, provide positive cash flow, but have not been at a level to meet the needs of our utility plant expenditure requirements. Management expects this trend to continue given our planned utility plant expenditures for the next five years. Some utility plant expenditures are funded by payments received from developers for contributions in aid of construction or advances for construction. Funds received for contributions in aid of construction are non-refundable, whereas funds classified as advances in construction are generally refundable over 40 years. Management believes long-term financing is available to meet our cash flow needs through issuances in both debt and equity instruments.

25

Summarized Financial Information for Guarantors and the Issuer of Guaranteed Securities.

On April 17, 2009, Cal Water (Issuer) issued $100.0 million aggregate principal amount of 5.500% First Mortgage Bonds due 2040, all of which are fully and unconditionally guaranteed by the Company (Guarantor). Certain subsidiaries of the Company do not guarantee the security and are referred to as Non-guarantors. The Guarantor fully, absolutely, irrevocably and unconditionally guarantees the due and punctual payment when due, whether at stated maturity, by acceleration, by notice of prepayment or otherwise, of the principal of, premium, if any, and interest on the bonds. The bonds rank equally among Cal Water's other First Mortgage Bonds.

The following tables present summarized financial information of the Issuer subsidiary and the Guarantor. The information presented below excludes eliminations necessary to arrive at the information on a consolidated basis. In presenting the summarized financial statements, the equity method of accounting has been applied to the Guarantor interests in the Issuer. The summarized information excludes financial information of the Non-guarantors, including earnings from and investments in these entities.

Summarized Statement of Operations
(in thousands)	Three months Ended March 31, 2023				Twelve Months Ended December 31, 2022
	Issuer		Guarantor		Issuer		Guarantor
Net sales	$	115,817	$	—	$	775,382	$	—
Gross profit	$	64,694	$	—	$	506,890	$	—
(Loss) income from operations	$	(15,835)	$	118	$	124,464	$	363
Equity in (loss) earnings of guarantor	$	—	$	(22,680)	$	—	$	94,339
Net (loss) income	$	(20,556)	$	(22,334)	$	92,769	$	95,263

Summarized Balance Sheet Information
(in thousands)	As of March 31, 2023				As of December 31, 2022
	Issuer		Guarantor		Issuer		Guarantor
Current assets	$	195,214	$	9,338	$	208,962	$	31,913
Intercompany receivable from Non-guarantors	$	1,375	$	38,365	$	3,339	$	34,100
Other assets	$	467,894	$	1,065,202	$	450,668	$	1,080,720
Long-term intercompany receivable from Non-issuers	$	—	$	37,410	$	—	$	37,869
Net utility plant	$	2,843,055	$	2	$	2,805,242	$	—
Total assets	$	3,507,538	$	1,150,317	$	3,468,211	$	1,184,602
Current liabilities	$	298,527	$	35,347	$	242,538	$	35,260
Intercompany payable to Non-guarantors and Guarantor	$	97	$	—	$	562	$	—
Long-term debt	$	1,051,849	$	—	$	1,051,994	$	—
Other liabilities	$	1,098,244	$	2,652	$	1,098,378	$	2,485
Total Liabilities	$	2,448,717	$	37,999	$	2,393,472	$	37,745

Dividends

During the first three months of 2023, our quarterly common stock dividend payments were $0.26 per share compared to $0.25 per share during the first three months of 2022. For the full year 2022, the payout ratio was 56.5% of net income. On a long-term basis, our goal is to achieve a dividend payout ratio of 60% of net income.

At the April 26, 2023 meeting, the Company's Board of Directors declared the second quarter dividend of $0.26 per share payable on May 19, 2023, to stockholders of record on May 8, 2023. This was our 313th consecutive quarterly dividend.

2023 Financing Plan

We intend to fund our utility plant needs in future periods through a relatively balanced approach between long-term debt and equity. The Company and Cal Water have a syndicated unsecured revolving line of credit of $200.0 million and $400.0 million, respectively, for short-term borrowings. As of March 31, 2023, the Company’s and Cal Water’s availability on these unsecured revolving lines of credit was $165.0 million and $305.0 million, respectively.

26

Book Value and Stockholders of Record

Book value per common share was $23.19 at March 31, 2023 compared to $23.70 at December 31, 2022. There were approximately 1,863 stockholders of record for our common stock as of February 6, 2023. 

Utility Plant Expenditures

During the first three months of 2023, utility plant expenditures totaled $82.0 million for Company-funded and developer-funded projects. For 2023, the Company's capital program will be dependent in part on the timing and nature of regulatory approvals in connection with Cal Water's 2021 GRC filing. The Company proposed to the CPUC spending $1.0 billion on water infrastructure investments in 2022-2024. Capital expenditures in California are evaluated in the context of the pending GRC and may change as the case moves forward.

As of March 31, 2023, construction work in progress was $275.2 million. Construction work in progress includes projects that are under construction but not yet complete and placed in service.

WATER SUPPLY

Our source of supply varies among our operating districts. Certain districts obtain all of their supply from wells; some districts purchase all of their supply from wholesale suppliers; and other districts obtain supply from a combination of wells and wholesale suppliers. A small portion of supply comes from surface sources and is processed through Company-owned water treatment plants. To the best of management's knowledge, we are meeting water quality, environmental, and other regulatory standards for all Company-owned systems.

Historically, approximately half of our annual water supply is pumped from wells. State groundwater management agencies operate differently in each state. Some of our wells extract ground water from water basins under state ordinances. These are adjudicated groundwater basins, in which a court has settled the dispute between landowners, or other parties over how much annual groundwater can be extracted by each party. All of our adjudicated groundwater basins are located in the State of California. Our annual groundwater extraction from adjudicated groundwater basins approximates 5.7 billion gallons or 10.8% of our total annual water supply pumped from wells. Historically, we have extracted less than 100% of our annual adjudicated groundwater rights and have the right to carry forward up to 20% of the unused amount to the next annual period. All of our remaining wells extract ground water from managed or unmanaged water basins. There are no set limits for the ground water extracted from these water basins. Our annual groundwater extraction from managed groundwater basins approximates 31.5 billion gallons or 59.9% of our total annual water supply pumped from wells. Our annual groundwater extraction from unmanaged groundwater basins approximates 15.4 billion gallons or 29.3% of our total annual water supply pumped from wells. Most of the managed groundwater basins we extract water from have groundwater recharge facilities. We are required to financially support these groundwater recharge facilities by paying well pump taxes. Our well pump taxes were $3.9 million and $4.3 million for the three months ended March 31, 2023 and 2022, respectively. In 2014, the State of California enacted the Sustainable Groundwater Management Act of 2014 (SGM Act). The law and its implementing regulations required most basins to select a sustainability agency by 2017, develop a sustainability plan by the end of 2022, and show progress toward sustainability by 2027. We expect that after the SGM Act's provisions are fully implemented, substantially all the Company's California groundwater will be produced from sustainably managed and adjudicated basins.

California's normal weather pattern yields little precipitation between mid-spring and mid-fall. The Washington Water service areas receive precipitation in all seasons, with the heaviest amounts during the winter. New Mexico Water's rainfall is heaviest in the summer monsoon season. Hawaii Water receives precipitation throughout the year, with the largest amounts in the winter months. Typically, water usage in all service areas is highest during the warm and dry summers and declines in the cool winter months. Rain and snow during the winter months in California replenish underground water aquifers and fill reservoirs, providing the water supply for subsequent delivery to customers. As of March 30, 2023, the State of California snowpack water content during the 2022-2023 water year was 190% of long-term averages (per the California Department of Water Resources, Northern Sierra Precipitation Accumulation report). The northern Sierra region is the most important for the state’s urban water supplies. The central and southern portions of the Sierras have recorded 233% and 298%, respectively, of long-term averages. Management believes that supply pumped from underground aquifers and purchased from wholesale suppliers will be adequate to meet customer demand during 2023 and thereafter. Long-term water supply plans are developed for each of our districts to help assure an adequate water supply under various operating and supply conditions. Some districts have unique challenges in meeting water quality standards, but management believes that supplies will meet current standards using currently available treatment processes.

27

On May 31, 2018, California's Governor signed two bills (Assembly Bill 1668 and Senate Bill 606) into law that were intended to establish long-term standards for water use efficiency. The bills revise and expand the existing urban water management plan requirements to include five-year drought risk assessments, water shortage contingency plans, and annual water supply/demand assessments. The California State Water Resources Control Board, in conjunction with the California Department of Water Resources, is expected to establish long-term water use standards for indoor residential use, outdoor residential use, water losses, and other uses. Cal Water will also be required to calculate and report on urban water use targets by November 1, 2023, and each November 1 thereafter, that compare actual urban water use to the targets. Management believes that Cal Water is well positioned to comply with all such regulations.

In March of 2023, the United States Environmental Protection Agency issued proposed maximum contaminant levels for six per- and polyfluoroalkyl substances (PFAS). Based on current information, if the regulation is adopted in its current form, we expect that we would have three years to comply with the final PFAS regulations and we estimate that capital investments of approximately $200.0 million would be required to comply.

CONTRACTUAL OBLIGATIONS

During the three months ended March 31, 2023, there were no material changes in contractual obligations outside the normal course of business.

Item 3.

QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK

We do not hold, trade in or issue derivative financial instruments and therefore are not exposed to risks these instruments present. Our market risk to interest rate exposure is limited because the cost of long-term financing and short-term bank borrowings, including interest costs, is covered in consumer water rates as approved by the Commissions. We do not have foreign operations; therefore, we do not have a foreign currency exchange risk. Our business is sensitive to commodity prices and is most affected by changes in purchased water and purchased power costs.

Historically, the CPUC’s balancing account or offsettable expense procedures allowed for increases in purchased water, pump tax, and purchased power costs to be flowed through to consumers. Traditionally, a significant percentage of our net income and cash flows come from California regulated operations; therefore the CPUC’s actions have a significant impact on our business. See Item 2, “Management’s Discussion and Analysis of Financial Condition and Results of Operations - Regulatory Matters.”

Item 4.

CONTROLS AND PROCEDURES

(a) Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended) that are designed to ensure that information required to be disclosed in our reports filed or submitted under the Securities Exchange Act of 1934, as amended, is recorded, processed, summarized and reported, within the time periods specified in the Securities and Exchange Commission's rules and forms, and that such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow for timely decisions regarding required disclosure.

In designing and evaluating the disclosure controls and procedures, management, including the Chief Executive Officer and Chief Financial Officer, recognized that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management is required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures. Accordingly, our disclosure controls and procedures have been designed to provide reasonable assurance of achieving their objectives.

Our management, with the participation of our Chief Executive Officer and our Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures as of March 31, 2023. Based on this evaluation of our disclosure controls and procedures, our management, including our Chief Executive Officer and Chief Financial Officer, have concluded that our disclosure controls and procedures were not effective as of March 31, 2023, because of the material weakness in our internal control over financial reporting that was disclosed in our 2022 Annual Report on Form 10-K.

28

(b) Plan for Remediation of the Material Weakness in Internal Control over Financial Reporting

As previously described in Item 9A of our 2022 Annual Report on Form 10-K, Company management, with the oversight of the Audit Committee of the Board of Directors, is actively engaged in the planning for and implementation of remediation efforts to address the material weakness. Management plans to implement the following control in order to remediate the material weakness:

•Monthly, members of the rates and accounting departments will meet to evaluate the nature of all regulatory activity (examples include advice letter filings, GRC applications, testimony, and settlements) that has occurred during the month and expected to occur in the subsequent months. Accounting will determine the required accounting for the discussed activity and a memo will be written and reviewed to conclude on any accounting.

Management is committed to continuous improvement of the Company’s financial reporting controls and will continue to diligently review the Company’s internal controls over financial reporting. As management continues to evaluate and work to improve internal controls over financial reporting, the Company may determine to take additional measures to address the material weakness or determine to modify certain of the remediation measures described above.

Management took steps to evaluate the remediation plan in the first quarter of 2023 and plans to fully implement the plan in the second quarter of 2023.

(c) Changes to Internal Control over Financial Reporting

There have been no changes in our internal control over financial reporting during the quarter ended March 31, 2023 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II OTHER INFORMATION

Item 1.

LEGAL PROCEEDINGS 

From time to time, the Company is involved in various disputes and litigation matters that arise in the ordinary course of business. The status of each significant matter is reviewed and assessed for potential financial exposure. If the potential loss from any claim or legal proceeding is considered probable and the amount of the range of loss can be reasonably estimated, a liability is accrued for the estimated loss in accordance with the accounting standards for contingencies. Legal proceedings are subject to uncertainties, and the outcomes are difficult to predict. Because of such uncertainties, accruals are based on the best information available at the time. While the outcome of these disputes and litigation matters cannot be predicted with any certainty, management does not believe when taking into account existing reserves the ultimate resolution of these matters will materially affect the Company’s financial position, results of operations, or cash flows. In the future, we may be involved in disputes and litigation related to a wide range of matters, including employment, construction, environmental issues and operations. Litigation can be time-consuming and expensive and could divert management’s time and attention from our business. In addition, if we are subject to additional lawsuits or disputes, we might incur significant legal costs and it is uncertain whether we would be able to recover the legal costs from customers or other third parties. For more information refer to Note 10.

Item 1A.

RISK FACTORS

There have been no material changes to the Company’s risk factors set forth in Part I, Item 1A of the Company’s Annual Report on Form 10-K for the year-ended December 31, 2022 filed with the SEC on March 1, 2023.

29

Item 6.

EXHIBITS

Exhibit	Description
3.1	Certificate of Incorporation of California Water Service Group (Exhibit 3.1 to the Quarterly Report on Form 10-Q filed August 9, 2006)
3.2	Certificate of Amendment to Certificate of Incorporation of California Water Service Group (Exhibit 3.1 to the Current Report on Form 8-K filed June 10, 2011)
3.3	Certificate of Amendment to Amended Certificate of Incorporation of California Water Service Group (Exhibit 3.3 to the Quarterly Report on Form 10-Q filed July 28, 2022)
3.4	Amended and Restated Bylaws of California Water Service Group (Exhibit 3.1 to the Current Report on Form 8-K filed February 24, 2023)
4.0	The Company agrees to furnish upon request to the Securities and Exchange Commission a copy of each instrument defining the rights of holders of long-term debt of the Company.
10.1	Credit Agreement dated as of March 31, 2023 among California Water Service Group and certain of its subsidiaries from time to time party thereto, as borrowers, Bank of America, N.A., as administrative agent, swing line lender and letter of credit issuer, BofA Securities, Inc., as sole lead arranger and sole bookrunner, CoBank, ACB, and U.S. Bank National Association as co-syndication agents, Bank of China, Los Angeles Branch as documentation agent, and the other lender parties thereto (Exhibit 10.2 to the Current Report on Form 8-K filed April 5, 2023)
10.2	Credit Agreement dated as of March 31, 2023 among California Water Service Company as borrower, Bank of America, N.A., as administrative agent, swing line lender and letter of credit issuer, BofA Securities, Inc., as sole lead arranger and sole bookrunner, CoBank, ACB, and U.S. Bank National Association as co-syndication agents, Bank of China, Los Angeles Branch as documentation agent, and the other lender parties thereto (Exhibit 10.1 to the Current Report on Form 8-K filed April 5, 2023)
31.1	Chief Executive Officer certification of financial statements pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	Chief Financial Officer certification of financial statements pursuant to Section 302 of the Sarbanes- Oxley Act of 2002
32	Chief Executive Officer and Chief Financial Officer Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101	The following materials from this Quarterly Report on Form 10-Q formatted in iXBRL (Inline eXtensible Business Reporting Language): (i) Condensed Consolidated Balance Sheets, (ii) Condensed Consolidated Statements of Operations, (iii) Condensed Consolidated Statements of Cash Flows, and (iv) the Notes to the Condensed Consolidated Financial Statements.
104	The cover page from this Quarterly Report on Form 10-Q formatted in iXBRL (included as exhibit 101)

30

SIGNATURES

Pursuant to the requirement 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.

	CALIFORNIA WATER SERVICE GROUP
	Registrant
April 28, 2023	By:	/s/ Thomas F. Smegal III
		Thomas F. Smegal III
		Vice President,
		Chief Financial Officer and Treasurer
		(Principal Financial Officer)

31

EX-31.1

Exhibit 31.1

CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER

PURSUANT TO SECTION 302 OF

THE SARBANES-OXLEY ACT OF 2002

I, Martin A. Kropelnicki, certify that:

1.        I have reviewed this quarterly report on Form 10-Q for the quarter ended March 31, 2023, of California Water Service Group;

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(s) 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; and

5.        The registrant’s other certifying officer(s) 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 functions):

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 control over financial reporting.

Date: April 28, 2023	By:	/s/ Martin A. Kropelnicki
		MARTIN A. KROPELNICKI
		President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION OF THE CHIEF FINANCIAL OFFICER

PURSUANT TO SECTION 302 OF

THE SARBANES-OXLEY ACT OF 2002

I, Thomas F. Smegal III, certify that:

1.        I have reviewed this quarterly report on Form 10-Q for the quarter ended March 31, 2023, of California Water Service Group;

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(s) 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; and

5.        The registrant’s other certifying officer(s) 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 functions):

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 control over financial reporting.

Date: April 28, 2023	By:	/s/ Thomas F. Smegal III
		THOMAS F. SMEGAL III
		Vice President, Chief Financial Officer and Treasurer

EX-32.0

Exhibit 32

CERTIFICATION OF CEO AND CFO

PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, each of the undersigned certifies that this quarterly report on Form 10-Q for the period ended March 31, 2023 fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934 and that the information contained in this Report fairly presents, in all material respects, the financial condition and results of operations of California Water Service Group.

Date: April 28, 2023	By:	/s/ Martin A. Kropelnicki
		MARTIN A. KROPELNICKI
		President and Chief Executive Officer
		California Water Service Group
Date: April 28, 2023	By:	/s/ Thomas F. Smegal III
		THOMAS F. SMEGAL III
		Vice President, Chief Financial Officer and Treasurer
		California Water Service Group

XML

Cover	3 Months Ended
	Mar. 31, 2023 shares
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2023
Document Transition Report	false
Entity File Number	1-13883
Entity Registrant Name	CALIFORNIA WATER SERVICE GROUP
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	77-0448994
Entity Address, Address Line One	1720 North First Street
Entity Address, City or Town	San Jose
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95112
City Area Code	408
Local Phone Number	367-8200
Title of 12(b) Security	Common Stock, $0.01 par value per share
Trading Symbol	CWT
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	55,991,000
Entity Central Index Key	0001035201
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1

XML

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Utility plant:
Utility plant	$ 4,612,350	$ 4,536,272
Less accumulated depreciation and amortization	(1,508,913)	(1,477,402)
Net utility plant	3,103,437	3,058,870
Current assets:
Cash and cash equivalents	52,286	62,100
Restricted cash	34,153	22,925
Receivables:
Customers, net	46,539	55,079
Regulatory balancing accounts	50,335	66,826
Other, net	20,576	20,932
Unbilled revenue, net	29,546	33,140
Materials and supplies	13,287	12,564
Taxes, prepaid expenses, and other assets	22,561	21,969
Total current assets	269,283	295,535
Other assets:
Regulatory assets	293,263	283,620
Goodwill	36,814	36,814
Other assets	184,065	175,913
Total other assets	514,142	496,347
TOTAL ASSETS	3,886,862	3,850,752
Capitalization:
Common stock, $0.01 par value; 136,000 shares authorized, 55,991 and 55,598 outstanding in 2023 and 2022, respectively	560	556
Additional paid-in capital	777,605	760,336
Retained earnings	520,031	556,698
Noncontrolling interests	4,792	4,804
Total equity	1,302,988	1,322,394
Long-term debt, net	1,052,337	1,052,487
Total capitalization	2,355,325	2,374,881
Current liabilities:
Current maturities of long-term debt, net	3,300	3,310
Short-term borrowings	130,000	70,000
Accounts payable	120,198	140,986
Regulatory balancing accounts	17,272	12,240
Accrued interest	16,790	6,490
Accrued expenses and other liabilities	62,744	61,624
Total current liabilities	350,304	294,650
Deferred income taxes	326,401	330,251
Pension	79,245	78,443
Regulatory liabilities and other	288,511	287,294
Advances for construction	199,305	199,832
Contributions in aid of construction	287,771	285,401
Commitments and contingencies (Note 10)
TOTAL CAPITALIZATION AND LIABILITIES	$ 3,886,862	$ 3,850,752

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2023	Dec. 31, 2022	Jul. 26, 2022	Jul. 25, 2022
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	136,000,000	136,000,000	136,000,000	68,000,000
Common stock, shares outstanding (in shares)	55,991,000	55,598,000

XML

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Operating revenue	$ 131,100	$ 172,993
Operations:
Water production costs	55,008	61,538
Administrative and general	35,986	33,411
Other operations	16,604	25,852
Maintenance	7,978	7,341
Depreciation and amortization	29,915	28,770
Income tax benefit	(5,644)	(1,417)
Property and other taxes	8,777	8,360
Total operating expenses	148,624	163,855
Net operating income	(17,524)	9,138
Other income and expenses:
Non-regulated revenue	4,623	5,197
Non-regulated expenses	(2,275)	(6,986)
Other components of net periodic benefit credit	5,221	4,014
Allowance for equity funds used during construction	1,404	975
Income tax expense on other income and expenses	(1,794)	(512)
Net other income	7,179	2,688
Interest expense:
Interest expense	12,818	11,495
Allowance for borrowed funds used during construction	(829)	(563)
Net interest expense	11,989	10,932
Net income	(22,334)	894
Net (loss) income attributable to noncontrolling interests	(123)	(192)
Net income attributable to California Water Service Group	$ (22,211)	$ 1,086
Earnings per share of common stock:
Basic (in dollars per share)	$ (0.40)	$ 0.02
Diluted (in dollars per share)	$ (0.40)	$ 0.02
Weighted average shares outstanding:
Basic (in shares)	55,666	53,731
Diluted (in shares)	55,666	53,775

XML

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating activities:
Net (loss) income	$ (22,334)	$ 894
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	30,433	29,482
Change in value of life insurance contracts	(1,641)	2,918
Allowance for equity funds used during construction	(1,404)	(975)
Changes in operating assets and liabilities:
Receivables and unbilled revenue	17,089	(10,079)
Water Arrearages Payment Program	0	20,836
Accounts payable	(11,230)	(11,617)
Other current assets	(1,342)	(75)
Other current liabilities	10,024	12,656
Other changes in noncurrent assets and liabilities	1,375	10,153
Net cash provided by operating activities	20,970	54,193
Investing activities:
Utility plant expenditures	(81,980)	(68,496)
Life insurance proceeds	0	1,727
Purchase of life insurance contracts	0	(1,727)
Asset acquisition	(102)	(180)
Net cash used in investing activities	(82,082)	(68,676)
Financing activities:
Short-term borrowings, net of issuance costs of $1,552 for 2023 and $0 for 2022	93,448	30,000
Repayment of short-term borrowings	(35,000)	(15,000)
Repayment of long-term debt	(214)	(198)
Advances and contributions in aid of construction	3,696	7,774
Refunds of advances for construction	(2,248)	(2,355)
Repurchase of common stock	(1,542)	(1,674)
Issuance of common stock, net	18,842	564
Dividends paid	(14,456)	(13,429)
Net cash provided by financing activities	62,526	5,682
Change in cash, cash equivalents, and restricted cash	1,414	(8,801)
Cash, cash equivalents, and restricted cash at beginning of period	85,025	80,653
Cash, cash equivalents, and restricted cash at end of period	86,439	71,852
Supplemental information:
Cash paid for interest (net of amounts capitalized)	1,578	187
Supplemental disclosure of non-cash activities:
Accrued payables for investments in utility plant	42,038	57,733
Utility plant contribution by developers	$ 7,032	$ 5,771

XML

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Cash Flows [Abstract]
Payments of debt issuance costs	$ 1,552	$ 0

XML

Organization and Operations and Basis of Presentation

3 Months Ended

Mar. 31, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization and Operations and Basis of Presentation

Organization and Operations and Basis of Presentation

California Water Service Group (Company) is a holding company that provides water utility and other related services in California, Washington, New Mexico, Hawaii, and Texas through its wholly-owned and non-wholly owned subsidiaries. California Water Service Company (Cal Water), Washington Water Service Company (Washington Water), New Mexico Water Service Company (New Mexico Water), and Hawaii Water Service Company, Inc. (Hawaii Water), provide regulated utility services under the rules and regulations of their respective state’s regulatory commissions (jointly referred to as the Commissions). CWS Utility Services and HWS Utility Services LLC provide non-regulated water utility and utility-related services. TWSC, Inc. (Texas Water) holds regulated and contracted wastewater utilities.

The Company operates in one reportable segment, providing water and water related utility services.

Basis of Presentation

The unaudited condensed consolidated interim financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP) for interim financial information and in accordance with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X promulgated by the Securities and Exchange Commission (SEC) and therefore do not contain all of the information and footnotes required by GAAP and the SEC for annual financial statements. Interim financial information includes the Company's accounts and those of its wholly and non-wholly owned subsidiaries. The non-wholly owned subsidiary was consolidated using the voting interest model as the Company owns a majority of the voting interests in the non-wholly owned subsidiary. The interim unaudited condensed consolidated financial statements should be read in conjunction with the Company’s consolidated financial statements included in its Annual Report on Form 10-K for the year ended December 31, 2022 as filed with the SEC on March 1, 2023.

The preparation of the Company’s unaudited condensed consolidated interim financial statements in accordance with GAAP 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 balance sheet dates and the reported amounts of revenues and expenses for the periods presented. These include, but are not limited to, estimates and assumptions used in determining the Company’s regulatory asset and liability balances based upon probability assessments of regulatory recovery, revenues earned but not yet billed, asset retirement obligations, allowance for credit losses, pension and other employee benefit plan liabilities, and income tax-related assets and liabilities. Actual results could materially differ from these estimates.

In the opinion of management, the accompanying unaudited condensed consolidated interim financial statements reflect all adjustments, consisting of normal recurring transactions that are necessary to provide a fair presentation of the results for the periods covered.

Due to the seasonal nature of the water business, the results for interim periods are not indicative of the results for a 12-month period. Revenue and income are generally higher in the warm, dry summer months when water usage and sales are greater. Revenue and income are generally lower in the winter months when cooler temperatures and rainfall curtail water usage and sales.

Noncontrolling Interests

Noncontrolling interests in the Company’s condensed consolidated financial statements represents a 6.2% interest not owned by Texas Water in a consolidated subsidiary. Texas Water obtained control over the subsidiary on May 1, 2021. Since the Company controls this subsidiary, its financial statements are consolidated with those of the Company, and the noncontrolling owner’s 6.2% share of the subsidiary’s net assets and results of operations is deducted and reported as noncontrolling interests on the condensed consolidated balance sheet and as net loss attributable to noncontrolling interests in the condensed consolidated statement of operations. The Company reports noncontrolling interests in consolidated entities as a component of equity separate from the Company’s equity. The Company’s net (loss) income attributable to California Water Service Group excludes a net loss attributable to the noncontrolling interests.

XML

Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2023

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

Operating revenue

The following table disaggregates the Company’s operating revenue by source for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31
	2023		2022
Revenue from contracts with customers	$	145,225	$	158,933
Regulatory balancing account revenue	(14,125)		14,060
Total operating revenue	$	131,100	$	172,993

Revenue from contracts with customers

The Company principally generates operating revenue from contracts with customers by providing regulated water and wastewater services at tariff-rates authorized by the Commissions in the states in which they operate and non-regulated water and wastewater services at rates authorized by contracts with government agencies. Revenue from contracts with customers reflects amounts billed for the volume of consumption at authorized per unit rates, for a service charge, and for other authorized charges.

The Company satisfies its performance obligation to provide water and wastewater services over time as services are rendered. The Company applies the invoice practical expedient and recognizes revenue from contracts with customers in the amount for which the Company has a right to invoice. The Company has a right to invoice for the volume of consumption, for the service charge, and for other authorized charges.

The measurement of sales to customers is generally based on the reading of their meters, which occurs on a systematic basis throughout the month. At the end of each month, the Company estimates consumption since the date of the last meter reading and the corresponding unbilled revenue is recognized. The estimate is based upon the number of unbilled days that month and the average daily customer billing rate from the previous month (which fluctuates based upon customer usage).

Contract terms are generally short-term and at will by customers and, as a result, no separate financing component is recognized for the Company's collections from customers, which generally require payment within 30 days of billing. The Company applies judgment, based principally on historical payment experience, in estimating its customers’ ability to pay.

Certain customers are not billed for volumetric consumption, but are instead billed a flat rate at the beginning of each monthly service period. The amount billed is initially deferred and subsequently recognized over the monthly service period, as the performance obligation is satisfied. The deferred revenue balance or contract liability, which is included in "accrued expenses and other liabilities" on the unaudited condensed consolidated balance sheets, is inconsequential.

In the following table, revenue from contracts with customers is disaggregated by class of customers for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31
	2023		2022
Residential	$	84,035	$	91,743
Business	31,974		32,163
Multiple residential	14,997		14,817
Industrial	5,634		5,773
Public authorities	6,425		6,985
Other (a)	2,160		7,452
Total revenue from contracts with customers	$	145,225	$	158,933

(a) Other includes accrued unbilled revenue.

Regulatory balancing account revenue

Regulatory balancing account revenue is revenue related to revenue mechanisms authorized in California by the California Public Utilities Commission (CPUC), which allow the Company to recognize revenue when it is objectively determinable, probable of recovery and expected to be collected within 24 months of the year-end in which the revenue is recognized, and are not considered contracts with customers. To the extent that revenue is estimated to be collectible beyond 24 months, recognition is deferred. Due to the delay in the resolution of the most recent General Rate Case (GRC) filing in California in July of 2021 by Cal Water (2021 GRC Filing), the Company did not benefit from any revenue mechanisms in the first quarter of 2023. For 2022, the Company's authorized revenue mechanisms included the Water Revenue Adjustment Mechanism (WRAM).

The WRAM decoupled revenue from the volume of the sales and allowed the Company to recognize the adopted level of volumetric revenues. The variance between adopted volumetric revenues and actual billed volumetric revenues for metered accounts was recorded as regulatory balancing account revenue. No WRAM was recorded in 2023 as the revenue mechanism concluded on December 31, 2022.

Regulatory balancing account revenue also includes revenue that is recognized for balancing accounts when it is probable that future recovery of previously incurred costs or future refunds that are to be credited to customers will occur through the ratemaking process. These mechanisms, such as the Modified Cost Balancing Account (MCBA), Conservation Expense Balancing Account (CEBA), Pension Cost Balancing Account (PCBA), and Health Cost Balancing Account (HCBA), generally provide for recovery of the adopted levels of expenses for purchased water, purchased power, pump taxes, water conservation program costs, pension, and health care. Variances between adopted and actual costs were recorded as regulatory balancing account revenue in 2022. In 2023, in connection with the CPUC's disallowance of the use of the WRAM, the variances for CEBA, HCBA, and PCBA are recorded against the originating expense. The MCBA was not recorded in 2023 as the mechanism concluded on December 31, 2022.

The CPUC issued a decision effective August 27, 2020 requiring that Class A companies submitting GRC filings after the effective date be (i) precluded from proposing the use of a full decoupling WRAM in their next GRCs and (ii) allowed the use of Monterey-Style Water Revenue Adjustment Mechanisms (MWRAM). In addition, the CPUC's decision allowed for Incremental Cost Balancing Accounts (ICBAs) to replace the MCBA. The MWRAM tracks the difference between the revenue received for actual metered sales through the tiered volumetric rate and the revenue that would have been received with the same actual metered sales if a uniform rate had been in effect. The ICBA tracks differences between the authorized per-unit prices of water production costs and actual per-unit prices of water production costs. Cal Water complied with this decision in its 2021 GRC Filing and expects the MWRAM to be implemented in 2023 and effective retroactive back to January 1, 2023. For the first quarter of 2023, the Company did not record a regulatory asset or regulatory liability for the MWRAM or ICBAs.

Non-regulated Revenue

The following table disaggregates the Company’s non-regulated revenue by source for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31
	2023		2022
Operating and maintenance revenue	$	3,235	$	3,405
Other non-regulated revenue	782		1,150
Non-regulated revenue from contracts with customers	4,017		4,555
Lease revenue	606		642
Total non-regulated revenue	$	4,623	$	5,197

Operating and maintenance services are provided for non-regulated water and wastewater systems owned by private companies and municipalities. The Company negotiates formal agreements with the customers, under which they provide operating, maintenance and customer billing services related to the customers’ water system. The formal agreements outline the fee schedule for the services provided. The agreements typically call for a fee-per-service or a flat-rate amount per month. The Company satisfies its performance obligation of providing operating and maintenance services over time as services are rendered; as a result, the Company employs the invoice practical expedient and recognizes revenue in the amount that it has the right to invoice. Contract terms are generally short-term and, as a result, no separate financing component is recognized for its collections from customers, which generally require payment within 30 days of billing.

Other non-regulated revenue primarily relates to services for the design and installation of water mains and other water infrastructure for customers outside the regulated service areas and insurance program administration.

Lease revenue is not considered revenue from contracts with customers and is recognized following operating lease standards. The Company is the lessor in operating lease agreements with telecommunications companies under which cellular phone antennas are placed on the Company's property.

Allowance for credit losses

The Company measures expected credit losses for Customer Receivables, Other Receivables, and Unbilled Revenue on an aggregated level. These receivables are generally trade receivables due in one year or less or expected to be billed and collected in one year or less. The expected credit losses for Other Receivables and Unbilled Revenue are inconsequential. Customer receivables include receivables for water and wastewater services provided to residential customers, business, industrial, public authorities, and other customers. The expected credit losses for business, industrial, public authorities, and other customers are inconsequential. The overall risks related to the Company’s receivables are low as water and wastewater services are seen as essential services. The estimate for the allowance for credit losses is based on a historical loss ratio, in conjunction with a qualitative assessment of elements that impact the collectability of receivables to determine if the allowance for credit losses should be further adjusted in accordance with the accounting guidance for credit losses. Management contemplates available current information such as changes in economic factors, regulatory matters, industry trends, payment options and programs available to customers, and the methods that the Company is able to utilize to ensure payment.

The Company reviews its allowance for credit losses utilizing a quantitative assessment, which includes a trend analysis of customer billing and collection, aging by customer class, and unemployment rates. The Company also utilizes a qualitative assessment, which considers the future collectability on customer outstanding balances, management's estimate of the cash recovery, and a general assessment of the economic conditions of the locations the Company serves. Based on these assessments, the Company adjusted its allowance for credit losses accordingly.

The following table presents the activity in the allowance for credit losses for the 3-month period ended March 31, 2023 and 12-month period ended December 31, 2022:

Allowance for credit losses	March 31, 2023		December 31, 2022
Beginning balance	$	5,629	$	3,743
Provision for credit loss expense	939		5,887
Write-offs	(1,592)		(4,380)
Recoveries	141		379
Total ending allowance balance	$	5,117	$	5,629

Cash, Cash Equivalents, and Restricted Cash

The following table provides a reconciliation of cash, cash equivalents, and restricted cash within the Condensed Consolidated Balance Sheets that sum to the total of the same such amounts shown on the Condensed Consolidated Statements of Cash Flows (see Note 10 for further details on restricted cash):

	March 31, 2023		December 31, 2022
Cash and cash equivalents	$	52,286	$	62,100
Restricted cash	34,153		22,925
Total cash, cash equivalents, and restricted cash shown in the statements of cash flows	$	86,439	$	85,025

XML

Stock-based Compensation

3 Months Ended

Mar. 31, 2023

Share-Based Payment Arrangement [Abstract]

Stock-based Compensation

Stock-based Compensation

The Company's equity incentive plan was approved and amended by stockholders on April 27, 2005 and May 20, 2014, respectively. The Company is authorized to issue awards up to 2,000,000 shares of common stock.

During the first three months of 2023, the Company granted Restricted Stock Awards (RSAs) to Officers and members of the Board of Directors. An RSA share represents the right to receive a restricted share of the Company's common stock and is valued based on the fair market value of the Company's common stock at the date of grant. RSAs granted to Officers vest over 36 months with the first year cliff vesting. In general, RSAs granted to Board members vest at the end of 12 months. The RSAs are recognized as expense evenly over 36 months for the shares granted to Officers and 12 months for the shares granted to Board members. As of March 31, 2023, there was approximately $3.5 million of total unrecognized compensation cost related to RSAs. The cost is expected to be recognized over a weighted average period of 2.0 years.

A summary of the status of the outstanding RSAs as of March 31, 2023 is presented below:

	Number of RSA Shares	Weighted-Average Grant-Date Fair Value
RSAs at January 1, 2023	52,066	$	55.77
Granted	42,301	55.46
Vested	(28,426)	56.02
Forfeited	—	—
RSAs at March 31, 2023	65,941	$	55.47

During the first three months of 2023, the Company granted performance-based Restricted Stock Units (RSUs) to Officers. An RSU represents the right to receive a share of the Company's common stock. Each award reflects a target number shares of common stock that may be issued to the award recipient. The 2023 awards may be earned upon the completion of a 3-year performance period. Whether RSUs are earned at the end of the performance period will be determined based on the achievement of certain performance objectives set by the Organization and Compensation Committee of the Board of Directors in connection with the issuance of the RSUs. The performance objectives are based on the Company's business plan covering the performance period. The performance objectives include achieving the budgeted return on equity, growth in stockholders' equity, and environmental, social, and governance targets. Depending on the results achieved during the 3-year performance period, the actual number of shares that a grant recipient receives at the end of the performance period may range from 0% to 200% of the target shares granted, provided that the grantee is continuously employed by the Company through the vesting date. If prior to the vesting date employment is terminated by reason of death, disability or normal retirement, then a pro rata portion of this award will vest. The RSUs are recognized as expense ratably over the 3-year performance period using a fair market value of the Company's common share at the date of grant and an estimated number of RSUs that will vest during the performance period. As of March 31, 2023, there was approximately $3.9 million of total unrecognized compensation cost related to RSUs. The cost is expected to be recognized over a weighted average period of 2.1 years.

A summary of the status of the outstanding RSUs as of March 31, 2023 is presented below:

	Number of RSU Shares	Weighted-Average Grant-Date Fair Value
RSUs at January 1, 2023	92,625	$	54.06
Granted	42,464	55.46
Performance criteria adjustment	14,822	56.84
Vested	(40,589)	56.84
Forfeited	(9,250)	53.66
RSUs at March 31, 2023	100,072	$	55.38

The Company has recorded compensation costs for the RSAs and RSUs that are included in administrative and general operating expenses in the amount of $0.1 million and $0.5 million for the three months ended March 31, 2023 and 2022, respectively.

XML

Equity

3 Months Ended

Mar. 31, 2023

Equity [Abstract]

Equity

Equity

On April 29, 2022, the Company entered into an equity distribution agreement to sell shares of its common stock having an aggregate gross sales price of up to $350.0 million from time to time depending on market conditions through an at-the-market equity program over the next three years. The Company intends to use the net proceeds from these sales, after deducting commissions on such sales and offering expenses, for general corporate purposes, which may include working capital, construction and acquisition expenditures, investments and repurchases, and redemptions of securities. The Company sold 326,042 shares of common stock through its at-the-market equity program and raised proceeds of $18.2 million, net of $0.2 million in commissions paid under the equity distribution agreement, during the three months ended March 31, 2023.

As approved by the Company's stockholders at the 2022 Annual Meeting, effective July 26, 2022, the aggregate number of shares of common stock which the Company shall have authority to issue was increased from 68.0 million shares to 136.0 million shares. All of said 136.0 million shares shall be of one and the same series, namely shares with par value of $0.01 per share.

The Company’s changes in total equity for the three months ended March 31, 2023 and 2022 were as follows:

	Three months ended March 31, 2023
	Common Stock			Additional Paid-in Capital		Retained Earnings		Noncontrolling Interests		Total Equity
	Shares	Amount
	(In thousands)
Balance at January 1, 2023	55,598	$	556	$	760,336	$	556,698	$	4,804	$	1,322,394
Net loss	—	—		—		(22,211)		(123)		(22,334)
Issuance of common stock	420	4		17,380		—		—		17,384
Repurchase of common stock	(27)	—		—		—		—		—
Dividends paid on common stock ($0.2600 per share)	—	—		—		(14,456)		—		(14,456)
Investment in business with noncontrolling interest	—	—		(111)		—		111		—
Balance at March 31, 2023	55,991	560		777,605		520,031		4,792		1,302,988

	Three months ended March 31, 2022
	Common Stock			Additional Paid-in Capital		Retained Earnings		Noncontrolling Interests		Total Equity
	Shares	Amount
	(In thousands)
Balance at January 1, 2022	53,716	$	537	$	651,121	$	514,873	$	5,386	$	1,171,917
Net income (loss)	—	—		—		1,086		(192)		894
Issuance of common stock	85	1		1,106		—		—		1,107
Repurchase of common stock	(28)	—		(1,674)		—		—		(1,674)
Dividends paid on common stock ($0.2500 per share)	—	—		—		(13,429)		—		(13,429)
Investment in business with noncontrolling interest	—	—		(54)		—		54		—
Balance at March 31, 2022	53,773	538		650,499		502,530		5,248		1,158,815

XML

(Loss) Earnings Per Share of Common Stock

3 Months Ended

Mar. 31, 2023

Earnings Per Share [Abstract]

(Loss) Earnings Per Share of Common Stock

arnings Per Share of Common Stock

The computations of basic and diluted (loss) earnings per share of common stock are noted in the table below. Basic (loss) earnings per share of common stock is computed by dividing the net (loss) income attributable to California Water Service Group by the weighted average number of common shares outstanding during the period. RSAs are included in the weighted average common shares outstanding because the shares have all the same voting and dividend rights as issued and unrestricted common stock. Certain outstanding equity instruments are not included in the diluted (loss) earnings per share calculation because their inclusion would have been anti-dilutive.

	Three Months Ended March 31
	2023		2022
	(In thousands, except per share data)
Net (loss) income	$	(22,334)	$	894
Net loss attributable to noncontrolling interests	$	(123)	$	(192)
Net loss attributable to California Water Service Group	$	(22,211)	$	1,086
Weighted average common shares outstanding, basic	55,666		53,731
Weighted average common shares outstanding, dilutive	55,666		53,775
(Loss) earnings per share of common stock - basic	$	(0.40)	$	0.02
(Loss) earnings per share of common stock - diluted	$	(0.40)	$	0.02

XML

Pension Plan and Other Postretirement Benefits

3 Months Ended

Mar. 31, 2023

Retirement Benefits [Abstract]

Pension Plan and Other Postretirement Benefits

Pension Plan and Other Postretirement Benefits

The Company provides a qualified, defined-benefit, non-contributory pension plan for substantially all employees. The Company makes annual contributions to fund the amounts accrued for in the qualified pension plan. The Company also maintains an unfunded, non-qualified, supplemental executive retirement plan. The costs of the plans are charged to expense or are capitalized in utility plant as appropriate.

The Company offers medical, dental, vision, and life insurance benefits for retirees and their spouses and dependents. Participants are required to pay a premium, which offsets a portion of the cost.

Cash contributions made by the Company to the pension plans were $2.9 million and $5.1 million for the three months ended March 31, 2023 and 2022, respectively. Cash contributions made by the Company to the other postretirement benefit plans were $0.2 million and $0.1 million for the three months ended March 31, 2023 and 2022, respectively. The total 2023 estimated cash contribution to the pension plans and other postretirement benefits plans are expected to be approximately $2.9 million and $0.2 million, respectively.

The following tables list components of net periodic benefit costs for the pension plans and other postretirement benefits. The data listed under “pension plan” includes the qualified pension plan and the non-qualified supplemental executive retirement plan. The data listed under “other benefits” is for all other postretirement benefits.

	Three Months Ended March 31
	Pension Plan				Other Benefits
	2023		2022		2023		2022
Service cost	$	6,046	$	9,235	$	1,126	$	1,683
Interest cost	8,746		6,329		1,297		1,008
Expected return on plan assets	(13,421)		(11,307)		(2,636)		(2,482)
Amortization of prior service cost	131		242		39		39
Recognized net actuarial (gain) loss	(637)		999		(581)		(228)
Net periodic benefit cost (benefit)	$	865	$	5,498	$	(755)	$	20

Service cost portion of the pension plan and other postretirement benefits is recognized in "administrative and general" expenses within the Condensed Consolidated Statements of Operations. Other components of net periodic benefit costs include interest costs, expected return on plan assets, amortization of prior service costs, and recognized net actuarial loss and are reported together as "other components of net periodic benefit cost" within the Condensed Consolidated Statements of Operations.

XML

Short-term and Long-term Borrowings

3 Months Ended

Mar. 31, 2023

Debt Disclosure [Abstract]

Short-term and Long-term Borrowings

Short-term and Long-term Borrowings

On March 31, 2023, the Company and Cal Water entered into syndicated credit agreements, which provide for unsecured revolving credit facilities of up to an initial aggregate amount of $600.0 million for a term of five years. The Company and subsidiaries that it designates may borrow up to $200.0 million under the Company’s revolving credit facility (the Company facility). Cal Water may borrow up to $400.0 million under its revolving credit facility (the Cal Water facility). Additionally, the credit facilities may be increased by up to an incremental $150.0 million under the Cal Water facility and $50.0 million under the Company facility, subject in each case to certain conditions. At the Company’s or Cal Water's option, as applicable, borrowings under the Company and Cal Water facilities, as applicable, will bear interest annually at a rate equal to (i) the base rate, plus an applicable margin of 0.00% to 0.250%, depending on the Company and its subsidiaries' consolidated total capitalization ratio, or (ii) Term SOFR, plus an applicable margin of 0.800% to 1.250%, depending on the Company and its subsidiaries' consolidated total capitalization ratio.

The Company and Cal Water facilities contain affirmative and negative covenants and events of default customary for credit facilities of this type including, among other things, limitations and prohibitions relating to additional indebtedness, liens, mergers, and asset sales. Also, the Company and Cal Water facilities contain financial covenants governing the Company and its subsidiaries' consolidated total capitalization ratio and interest coverage ratio. As of March 31, 2023, the Company and Cal Water are in compliance with all of the covenant requirements and are eligible to use the full amount of the undrawn portion of the Company and Cal Water facilities, as applicable.

The outstanding borrowings on the Company facility as of each of March 31, 2023 and December 31, 2022 were $35.0 million. Outstanding borrowings on the Cal Water facility as of March 31, 2023 and December 31, 2022 were $95.0 million and $35.0 million, respectively. The average borrowing rate for borrowings on the Company and Cal Water facilities during the three months ended March 31, 2023 was 5.49% compared to 0.98% for the same period last year.

XML

Income Taxes

3 Months Ended

Mar. 31, 2023

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The Company adjusts its effective tax rate each quarter to be consistent with the estimated annual effective tax rate. The Company also records the tax effect of unusual or infrequently occurring discrete items.

The provision for income taxes is shown in the tables below:

	Three Months Ended March 31
	2023		2022
Income tax benefit	$	(3,850)	$	(905)

Income tax benefit increased $3.0 million to $3.9 million in the first quarter of 2023 as compared to $0.9 million income tax benefit in the first quarter of 2022, primarily due to an increase in the pre-tax loss in the first quarter of 2023 as compared to the first quarter of 2022.

The Company’s effective tax rate was 14.6% before discrete items as of March 31, 2023 and 12.0% as of March 31, 2022. The increase in the effective tax rate was primarily due to a decrease in the refunds of excess deferred federal income taxes.

The Company had unrecognized tax benefits of approximately $14.0 million and $16.2 million as of March 31, 2023 and 2022, respectively. Included in the balance of unrecognized tax benefits as of March 31, 2023 and 2022, is $4.5 million and $4.1 million, respectively, of tax benefits that, if recognized, would result in an adjustment to the Company’s effective tax rate. The Company does not expect its unrecognized tax benefits to change significantly within the next 12 months.

XML

Regulatory Assets and Liabilities

3 Months Ended

Mar. 31, 2023

Regulated Operations [Abstract]

Regulatory Assets and Liabilities

Regulatory Assets and Liabilities

Regulatory assets and liabilities were comprised of the following as of March 31, 2023 and December 31, 2022:

	Recovery Period	March 31, 2023		December 31, 2022
Regulatory Assets
Retiree group health	Indefinitely	$	—	$	171
Property-related temporary differences (tax benefits flowed through to customers)	Indefinitely	143,546		143,546
Other accrued benefits	Indefinitely	25,974		24,946
Net WRAM and MCBA long-term accounts receivable	Various	49,243		41,558
Asset retirement obligations, net	Indefinitely	25,335		24,548
Interim rates memorandum account (IRMA) long-term accounts receivable	1 - 2 years	3,533		3,682
Tank coating	Various	16,507		16,395
Recoverable property losses	Various	2,998		3,144
PCBA	Various	19,233		19,091
General district balancing account receivable	1 year	383		377
Customer assistance program (CAP) and Rate support fund (RSF) accounts receivable	1 year	3,402		2,965
Other regulatory assets	Various	3,109		3,197
Total Regulatory Assets		$	293,263	$	283,620
Regulatory Liabilities
Future tax benefits due to customers		$	131,155	$	131,155
Pension and retiree group health		58,678		58,678
HCBA		15,312		14,318
PCBA		1,999		—
CEBA		860		6,036
Net WRAM and MCBA long-term payable		262		172
Other components of net periodic benefit cost		4,059		2,475
Other regulatory liabilities		1,025		845
Total Regulatory Liabilities		$	213,350	$	213,679

Short-term regulatory assets and liabilities are excluded from the above table.

The short-term regulatory assets were $50.3 million as of March 31, 2023 and $66.8 million as of December 31, 2022. The short-term regulatory assets as of March 31, 2023 primarily consist of net WRAM and MCBA and IRMA receivables. As of December 31, 2022, the short-term regulatory assets primarily consist of net WRAM and MCBA, IRMA, and PCBA receivables.

The short-term portions of regulatory liabilities were $17.3 million as of March 31, 2023 and $12.2 million as of December 31, 2022. The short-term regulatory liabilities as of March 31, 2023 primarily consist of TCJA and CEBA liabilities. As of December 31, 2022, the short-term regulatory liabilities primarily consist of TCJA liabilities.

Cost of Capital Application

On May 3, 2021, after an approved extension from a 2020 due date, Cal Water filed its required application with the CPUC to review its cost of capital for 2022 through 2024. Cal Water currently has an approved return on equity of 9.2%, a cost of debt of 5.51%, and a capital structure of 53.4% equity and 46.6% debt. Cal Water requested a return on equity of 10.35%, a cost of debt of 4.23%, and a capital structure of 53.4% equity and 46.6% debt. The California Public Advocates Office recommended a return on equity of 7.81%, a cost of debt of 4.23%, and a capital structure of 49.4% equity and 50.6% debt. Evidentiary hearings were held in May 2022 and the case was submitted to the CPUC at the end of the second quarter of 2022. In the first quarter of 2023, the CPUC extended its statutory deadline to issue a decision to August 10, 2023. In the

event that the CPUC adopts the cost of capital components retroactively to January 1, 2022, Cal Water estimates the reduced cost of debt, if adopted at Cal Water's proposed equity capital structure, would reduce authorized annual revenue by approximately $11.0 million. The actual amount could be different depending on the final cost of equity and capital structure adopted by the CPUC. Cal Water has not reserved for any potential outcome of the proceeding as Cal Water has determined that it is not probable that the proceeding will be approved retroactively to January 1, 2022.

XML

Commitments and Contingencies

3 Months Ended

Mar. 31, 2023

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Commitments

The Company has significant commitments to purchase water from water wholesalers. The Company also has operating and finance leases for water systems, offices, land easements, licenses, equipment, and other facilities. These commitments and leases are described in the Company's Annual Report on Form 10-K for the year ended December 31, 2022. 

On August 16, 2022, BVRT Utility Holding Company (BVRT), a majority owned subsidiary of Texas Water, entered into a long-term water supply agreement with the Guadalupe Blanco River Authority (GBRA) through its wholly owned subsidiary, Camino Real Utility (Camino Real). The Company has provided a limited guarantee to GBRA for the agreed upon obligations. GBRA is a water conservation and reclamation district established by the Texas Legislature that oversees water resources for 10 counties. Under the terms of the agreement with GBRA, Camino Real is contracted to receive up to 2,419 acre-feet of potable water annually. The GBRA agreement involves four off-takers, including Camino Real, and GBRA plans to extend a potable water pipeline from the City of Lockhart to the City of Mustang Ridge and surrounding areas. Camino Real is contracted to be the utility service provider in this area of the Austin metropolitan region and to provide potable water, recycled water, and wastewater services to portions of the City of Mustang Ridge and surrounding areas. In 2022, Camino Real committed $21.5 million for its share of the cost of the pipeline project and committed an additional $11.1 million for its share of the cost of the pipeline project in January of 2023. As of March 31, 2023, this committed cash has not been transferred to GBRA and is classified as part of restricted cash on the Condensed Consolidated Balance Sheets. The Company currently expects this committed cash to be transferred to GBRA in the second quarter of 2023.

Contingencies

Groundwater Contamination

The Company has undertaken litigation against third parties to recover past and anticipated costs related to groundwater contamination in our service areas. The cost of litigation is expensed as incurred and any settlement is first offset against such costs. The CPUC’s general policy requires all proceeds from groundwater contamination litigation to be used first to pay transactional expenses, then to make customers whole for water treatment costs to comply with the CPUC’s water quality standards. The CPUC allows for a risk-based consideration of contamination proceeds which exceed the costs of the remediation described above and may result in some sharing of proceeds with shareholders, determined on a case by case basis. The CPUC has authorized various memorandum accounts that allow the Company to track significant litigation costs and to request recovery of these costs in future filings.

Other Legal Matters

From time to time, the Company is involved in various disputes and litigation matters that arise in the ordinary course of business. The status of each significant matter is reviewed and assessed for potential financial exposure. If the potential loss from any claim or legal proceeding is considered probable and the amount of the range of loss can be estimated, a liability is accrued for the estimated loss in accordance with the accounting standards for contingencies. Legal proceedings are subject to uncertainties, and the outcomes are difficult to predict. Because of such uncertainties, accruals are based on the best information available at the time. While the outcome of these disputes and litigation matters cannot be predicted with any certainty, management does not believe, when taking into account existing reserves, the ultimate resolution of these matters will materially affect the Company’s financial position, results of operations, or cash flows. As of March 31, 2023 and December 31, 2022, the Company recognized a liability of $4.6 million and $5.3 million, respectively, for known legal matters primarily due to potable water leaks and other work-related legal matters. The cost of litigation is expensed as incurred and any settlement is first offset against such costs. Any settlement in excess of the cost to litigate is accounted for on a case by case basis, dependent on the nature of the settlement.

XML

Fair Value of Financial Assets and Liabilities

3 Months Ended

Mar. 31, 2023

Fair Value Disclosures [Abstract]

Fair Value of Financial Assets and Liabilities

Fair Value of Financial Assets and Liabilities

The accounting guidance for fair value measurements and disclosures provides a single definition of fair value and requires certain disclosures about assets and liabilities measured at fair value. A hierarchical framework for disclosing the observability of the inputs utilized in measuring assets and liabilities at fair value is established by this guidance. The three levels in the hierarchy are as follows:

Level 1 - Inputs to the valuation methodology are unadjusted quoted prices for identical assets or liabilities in active markets that the Company has the ability to access.

Level 2 - Inputs to the valuation methodology include:

•Quoted market prices for similar assets or liabilities in active markets;

•Quoted prices for identical or similar assets or liabilities in inactive markets;

•Inputs other than quoted prices that are observable for the asset or liability; and

•Inputs that are derived principally from or corroborated by observable market data by correlation or other means.

If the asset or liability has a specified (contractual) term, the level 2 input must be observable for substantially the full term of the asset or liability.

Level 3 - Inputs to the valuation methodology are unobservable and significant to the fair value measurement.

Specific valuation methods include the following:

Cash, Accounts receivable, short-term borrowings, and accounts payable carrying amounts approximated the fair value because of the short-term maturity of the instruments.

Long-term debt fair values were estimated using the published quoted market price of similar securities, if available, or the discounted cash flow analysis, based on the current rates available using a risk-free rate (a U.S. Treasury securities yield curve) plus a risk premium of 0.60%.

	March 31, 2023
			Fair Value
	Cost		Level 1	Level 2		Level 3	Total
Long-term debt, including current maturities, net	$	1,055,637	—	$	1,023,472	—	$	1,023,472

	December 31, 2022
			Fair Value
	Cost		Level 1		Level 2		Level 3		Total
Long-term debt, including current maturities, net	$	1,055,797	$	—	$	977,227	$	—	$	977,227

XML

Immaterial Restatement of Prior Period Financial Statements

3 Months Ended

Mar. 31, 2023

Accounting Changes and Error Corrections [Abstract]

Immaterial Restatement of Prior Period Financial Statements

Immaterial Restatement of Prior Period Financial Statements

Subsequent to the issuance of the Company's Consolidated Financial Statements for the year ended December 31, 2021, during the fourth quarter of 2022, the Company identified an immaterial error for a regulatory liability and corresponding decreases to operating revenue and deferred income taxes that were not recorded in 2019 associated with customer refunds. The error does not impact customer billings or cash refunded to customers.

The Company corrected the error in the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2022, through a restatement of the opening retained earnings balance for the year ended December 31, 2020. The Company believes the error is immaterial to the previously issued Financial Statements for prior periods.

The corrections to the Company’s retained earnings and total equity as of March 31, 2022, reported in note 4, were as follows:

	As of March 31, 2022
	As Previously Reported		Corrections		As Corrected
	(In thousands)
Retained earnings	$	513,593	$	(11,063)	$	502,530
Total equity	$	1,169,878	$	(11,063)	$	1,158,815

XML

Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2023

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

The unaudited condensed consolidated interim financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP) for interim financial information and in accordance with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X promulgated by the Securities and Exchange Commission (SEC) and therefore do not contain all of the information and footnotes required by GAAP and the SEC for annual financial statements. Interim financial information includes the Company's accounts and those of its wholly and non-wholly owned subsidiaries. The non-wholly owned subsidiary was consolidated using the voting interest model as the Company owns a majority of the voting interests in the non-wholly owned subsidiary. The interim unaudited condensed consolidated financial statements should be read in conjunction with the Company’s consolidated financial statements included in its Annual Report on Form 10-K for the year ended December 31, 2022 as filed with the SEC on March 1, 2023.

The preparation of the Company’s unaudited condensed consolidated interim financial statements in accordance with GAAP 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 balance sheet dates and the reported amounts of revenues and expenses for the periods presented. These include, but are not limited to, estimates and assumptions used in determining the Company’s regulatory asset and liability balances based upon probability assessments of regulatory recovery, revenues earned but not yet billed, asset retirement obligations, allowance for credit losses, pension and other employee benefit plan liabilities, and income tax-related assets and liabilities. Actual results could materially differ from these estimates.

In the opinion of management, the accompanying unaudited condensed consolidated interim financial statements reflect all adjustments, consisting of normal recurring transactions that are necessary to provide a fair presentation of the results for the periods covered.

Due to the seasonal nature of the water business, the results for interim periods are not indicative of the results for a 12-month period. Revenue and income are generally higher in the warm, dry summer months when water usage and sales are greater. Revenue and income are generally lower in the winter months when cooler temperatures and rainfall curtail water usage and sales.

Revenue

Revenue from contracts with customers

The Company principally generates operating revenue from contracts with customers by providing regulated water and wastewater services at tariff-rates authorized by the Commissions in the states in which they operate and non-regulated water and wastewater services at rates authorized by contracts with government agencies. Revenue from contracts with customers reflects amounts billed for the volume of consumption at authorized per unit rates, for a service charge, and for other authorized charges.

The Company satisfies its performance obligation to provide water and wastewater services over time as services are rendered. The Company applies the invoice practical expedient and recognizes revenue from contracts with customers in the amount for which the Company has a right to invoice. The Company has a right to invoice for the volume of consumption, for the service charge, and for other authorized charges.

The measurement of sales to customers is generally based on the reading of their meters, which occurs on a systematic basis throughout the month. At the end of each month, the Company estimates consumption since the date of the last meter reading and the corresponding unbilled revenue is recognized. The estimate is based upon the number of unbilled days that month and the average daily customer billing rate from the previous month (which fluctuates based upon customer usage).

Contract terms are generally short-term and at will by customers and, as a result, no separate financing component is recognized for the Company's collections from customers, which generally require payment within 30 days of billing. The Company applies judgment, based principally on historical payment experience, in estimating its customers’ ability to pay.

Certain customers are not billed for volumetric consumption, but are instead billed a flat rate at the beginning of each monthly service period. The amount billed is initially deferred and subsequently recognized over the monthly service period, as the performance obligation is satisfied. The deferred revenue balance or contract liability, which is included in "accrued expenses and other liabilities" on the unaudited condensed consolidated balance sheets, is inconsequential.

In the following table, revenue from contracts with customers is disaggregated by class of customers for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31
	2023		2022
Residential	$	84,035	$	91,743
Business	31,974		32,163
Multiple residential	14,997		14,817
Industrial	5,634		5,773
Public authorities	6,425		6,985
Other (a)	2,160		7,452
Total revenue from contracts with customers	$	145,225	$	158,933

(a) Other includes accrued unbilled revenue.

Regulatory balancing account revenue

Regulatory balancing account revenue is revenue related to revenue mechanisms authorized in California by the California Public Utilities Commission (CPUC), which allow the Company to recognize revenue when it is objectively determinable, probable of recovery and expected to be collected within 24 months of the year-end in which the revenue is recognized, and are not considered contracts with customers. To the extent that revenue is estimated to be collectible beyond 24 months, recognition is deferred. Due to the delay in the resolution of the most recent General Rate Case (GRC) filing in California in July of 2021 by Cal Water (2021 GRC Filing), the Company did not benefit from any revenue mechanisms in the first quarter of 2023. For 2022, the Company's authorized revenue mechanisms included the Water Revenue Adjustment Mechanism (WRAM).

The WRAM decoupled revenue from the volume of the sales and allowed the Company to recognize the adopted level of volumetric revenues. The variance between adopted volumetric revenues and actual billed volumetric revenues for metered accounts was recorded as regulatory balancing account revenue. No WRAM was recorded in 2023 as the revenue mechanism concluded on December 31, 2022.

Regulatory balancing account revenue also includes revenue that is recognized for balancing accounts when it is probable that future recovery of previously incurred costs or future refunds that are to be credited to customers will occur through the ratemaking process. These mechanisms, such as the Modified Cost Balancing Account (MCBA), Conservation Expense Balancing Account (CEBA), Pension Cost Balancing Account (PCBA), and Health Cost Balancing Account (HCBA), generally provide for recovery of the adopted levels of expenses for purchased water, purchased power, pump taxes, water conservation program costs, pension, and health care. Variances between adopted and actual costs were recorded as regulatory balancing account revenue in 2022. In 2023, in connection with the CPUC's disallowance of the use of the WRAM, the variances for CEBA, HCBA, and PCBA are recorded against the originating expense. The MCBA was not recorded in 2023 as the mechanism concluded on December 31, 2022.

The CPUC issued a decision effective August 27, 2020 requiring that Class A companies submitting GRC filings after the effective date be (i) precluded from proposing the use of a full decoupling WRAM in their next GRCs and (ii) allowed the use of Monterey-Style Water Revenue Adjustment Mechanisms (MWRAM). In addition, the CPUC's decision allowed for Incremental Cost Balancing Accounts (ICBAs) to replace the MCBA. The MWRAM tracks the difference between the revenue received for actual metered sales through the tiered volumetric rate and the revenue that would have been received with the same actual metered sales if a uniform rate had been in effect. The ICBA tracks differences between the authorized per-unit prices of water production costs and actual per-unit prices of water production costs. Cal Water complied with this decision in its 2021 GRC Filing and expects the MWRAM to be implemented in 2023 and effective retroactive back to January 1, 2023. For the first quarter of 2023, the Company did not record a regulatory asset or regulatory liability for the MWRAM or ICBAs.

Non-regulated Revenue

Non-regulated Revenue

The following table disaggregates the Company’s non-regulated revenue by source for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31
	2023		2022
Operating and maintenance revenue	$	3,235	$	3,405
Other non-regulated revenue	782		1,150
Non-regulated revenue from contracts with customers	4,017		4,555
Lease revenue	606		642
Total non-regulated revenue	$	4,623	$	5,197

Operating and maintenance services are provided for non-regulated water and wastewater systems owned by private companies and municipalities. The Company negotiates formal agreements with the customers, under which they provide operating, maintenance and customer billing services related to the customers’ water system. The formal agreements outline the fee schedule for the services provided. The agreements typically call for a fee-per-service or a flat-rate amount per month. The Company satisfies its performance obligation of providing operating and maintenance services over time as services are rendered; as a result, the Company employs the invoice practical expedient and recognizes revenue in the amount that it has the right to invoice. Contract terms are generally short-term and, as a result, no separate financing component is recognized for its collections from customers, which generally require payment within 30 days of billing.

Other non-regulated revenue primarily relates to services for the design and installation of water mains and other water infrastructure for customers outside the regulated service areas and insurance program administration.

Lease revenue

Lease revenue is not considered revenue from contracts with customers and is recognized following operating lease standards. The Company is the lessor in operating lease agreements with telecommunications companies under which cellular phone antennas are placed on the Company's property.

Allowance for credit losses

Allowance for credit losses

The Company measures expected credit losses for Customer Receivables, Other Receivables, and Unbilled Revenue on an aggregated level. These receivables are generally trade receivables due in one year or less or expected to be billed and collected in one year or less. The expected credit losses for Other Receivables and Unbilled Revenue are inconsequential. Customer receivables include receivables for water and wastewater services provided to residential customers, business, industrial, public authorities, and other customers. The expected credit losses for business, industrial, public authorities, and other customers are inconsequential. The overall risks related to the Company’s receivables are low as water and wastewater services are seen as essential services. The estimate for the allowance for credit losses is based on a historical loss ratio, in conjunction with a qualitative assessment of elements that impact the collectability of receivables to determine if the allowance for credit losses should be further adjusted in accordance with the accounting guidance for credit losses. Management contemplates available current information such as changes in economic factors, regulatory matters, industry trends, payment options and programs available to customers, and the methods that the Company is able to utilize to ensure payment.

The Company reviews its allowance for credit losses utilizing a quantitative assessment, which includes a trend analysis of customer billing and collection, aging by customer class, and unemployment rates. The Company also utilizes a qualitative assessment, which considers the future collectability on customer outstanding balances, management's estimate of the cash recovery, and a general assessment of the economic conditions of the locations the Company serves. Based on these assessments, the Company adjusted its allowance for credit losses accordingly.

XML

Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2023

Accounting Policies [Abstract]

Disaggregation of Revenue

The following table disaggregates the Company’s operating revenue by source for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31
	2023		2022
Revenue from contracts with customers	$	145,225	$	158,933
Regulatory balancing account revenue	(14,125)		14,060
Total operating revenue	$	131,100	$	172,993

In the following table, revenue from contracts with customers is disaggregated by class of customers for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31
	2023		2022
Residential	$	84,035	$	91,743
Business	31,974		32,163
Multiple residential	14,997		14,817
Industrial	5,634		5,773
Public authorities	6,425		6,985
Other (a)	2,160		7,452
Total revenue from contracts with customers	$	145,225	$	158,933

(a) Other includes accrued unbilled revenue.

The following table disaggregates the Company’s non-regulated revenue by source for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31
	2023		2022
Operating and maintenance revenue	$	3,235	$	3,405
Other non-regulated revenue	782		1,150
Non-regulated revenue from contracts with customers	4,017		4,555
Lease revenue	606		642
Total non-regulated revenue	$	4,623	$	5,197

Schedule of Allowance for Credit Losses

The following table presents the activity in the allowance for credit losses for the 3-month period ended March 31, 2023 and 12-month period ended December 31, 2022:

Allowance for credit losses	March 31, 2023		December 31, 2022
Beginning balance	$	5,629	$	3,743
Provision for credit loss expense	939		5,887
Write-offs	(1,592)		(4,380)
Recoveries	141		379
Total ending allowance balance	$	5,117	$	5,629

Schedule of Cash and Cash Equivalents

The following table provides a reconciliation of cash, cash equivalents, and restricted cash within the Condensed Consolidated Balance Sheets that sum to the total of the same such amounts shown on the Condensed Consolidated Statements of Cash Flows (see Note 10 for further details on restricted cash):

	March 31, 2023		December 31, 2022
Cash and cash equivalents	$	52,286	$	62,100
Restricted cash	34,153		22,925
Total cash, cash equivalents, and restricted cash shown in the statements of cash flows	$	86,439	$	85,025

XML

Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2023

Share-Based Payment Arrangement [Abstract]

Schedule of Restricted Stock and Restricted Stock Unit Activity

A summary of the status of the outstanding RSAs as of March 31, 2023 is presented below:

	Number of RSA Shares	Weighted-Average Grant-Date Fair Value
RSAs at January 1, 2023	52,066	$	55.77
Granted	42,301	55.46
Vested	(28,426)	56.02
Forfeited	—	—
RSAs at March 31, 2023	65,941	$	55.47

A summary of the status of the outstanding RSUs as of March 31, 2023 is presented below:

	Number of RSU Shares	Weighted-Average Grant-Date Fair Value
RSUs at January 1, 2023	92,625	$	54.06
Granted	42,464	55.46
Performance criteria adjustment	14,822	56.84
Vested	(40,589)	56.84
Forfeited	(9,250)	53.66
RSUs at March 31, 2023	100,072	$	55.38

XML

Equity (Tables)

3 Months Ended

Mar. 31, 2023

Equity [Abstract]

Schedule of Changes in Total Common Stockholders' Equity

The Company’s changes in total equity for the three months ended March 31, 2023 and 2022 were as follows:

	Three months ended March 31, 2023
	Common Stock			Additional Paid-in Capital		Retained Earnings		Noncontrolling Interests		Total Equity
	Shares	Amount
	(In thousands)
Balance at January 1, 2023	55,598	$	556	$	760,336	$	556,698	$	4,804	$	1,322,394
Net loss	—	—		—		(22,211)		(123)		(22,334)
Issuance of common stock	420	4		17,380		—		—		17,384
Repurchase of common stock	(27)	—		—		—		—		—
Dividends paid on common stock ($0.2600 per share)	—	—		—		(14,456)		—		(14,456)
Investment in business with noncontrolling interest	—	—		(111)		—		111		—
Balance at March 31, 2023	55,991	560		777,605		520,031		4,792		1,302,988

	Three months ended March 31, 2022
	Common Stock			Additional Paid-in Capital		Retained Earnings		Noncontrolling Interests		Total Equity
	Shares	Amount
	(In thousands)
Balance at January 1, 2022	53,716	$	537	$	651,121	$	514,873	$	5,386	$	1,171,917
Net income (loss)	—	—		—		1,086		(192)		894
Issuance of common stock	85	1		1,106		—		—		1,107
Repurchase of common stock	(28)	—		(1,674)		—		—		(1,674)
Dividends paid on common stock ($0.2500 per share)	—	—		—		(13,429)		—		(13,429)
Investment in business with noncontrolling interest	—	—		(54)		—		54		—
Balance at March 31, 2022	53,773	538		650,499		502,530		5,248		1,158,815

XML

(Loss) Earnings Per Share of Common Stock (Tables)

3 Months Ended

Mar. 31, 2023

Earnings Per Share [Abstract]

Schedule basic and Diluted Earnings Per Share

The computations of basic and diluted (loss) earnings per share of common stock are noted in the table below. Basic (loss) earnings per share of common stock is computed by dividing the net (loss) income attributable to California Water Service Group by the weighted average number of common shares outstanding during the period. RSAs are included in the weighted average common shares outstanding because the shares have all the same voting and dividend rights as issued and unrestricted common stock. Certain outstanding equity instruments are not included in the diluted (loss) earnings per share calculation because their inclusion would have been anti-dilutive.

	Three Months Ended March 31
	2023		2022
	(In thousands, except per share data)
Net (loss) income	$	(22,334)	$	894
Net loss attributable to noncontrolling interests	$	(123)	$	(192)
Net loss attributable to California Water Service Group	$	(22,211)	$	1,086
Weighted average common shares outstanding, basic	55,666		53,731
Weighted average common shares outstanding, dilutive	55,666		53,775
(Loss) earnings per share of common stock - basic	$	(0.40)	$	0.02
(Loss) earnings per share of common stock - diluted	$	(0.40)	$	0.02

XML

Pension Plan and Other Postretirement Benefits (Tables)

3 Months Ended

Mar. 31, 2023

Retirement Benefits [Abstract]

Schedule of components of net periodic benefit costs for the pension plans and other postretirement benefits

The following tables list components of net periodic benefit costs for the pension plans and other postretirement benefits. The data listed under “pension plan” includes the qualified pension plan and the non-qualified supplemental executive retirement plan. The data listed under “other benefits” is for all other postretirement benefits.

	Three Months Ended March 31
	Pension Plan				Other Benefits
	2023		2022		2023		2022
Service cost	$	6,046	$	9,235	$	1,126	$	1,683
Interest cost	8,746		6,329		1,297		1,008
Expected return on plan assets	(13,421)		(11,307)		(2,636)		(2,482)
Amortization of prior service cost	131		242		39		39
Recognized net actuarial (gain) loss	(637)		999		(581)		(228)
Net periodic benefit cost (benefit)	$	865	$	5,498	$	(755)	$	20

XML

Income Taxes (Tables)

3 Months Ended

Mar. 31, 2023

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

The provision for income taxes is shown in the tables below:

	Three Months Ended March 31
	2023		2022
Income tax benefit	$	(3,850)	$	(905)

XML

Regulatory Assets and Liabilities (Tables)

3 Months Ended

Mar. 31, 2023

Regulated Operations [Abstract]

Schedule of Regulatory Assets and Liabilities

Regulatory assets and liabilities were comprised of the following as of March 31, 2023 and December 31, 2022:

	Recovery Period	March 31, 2023		December 31, 2022
Regulatory Assets
Retiree group health	Indefinitely	$	—	$	171
Property-related temporary differences (tax benefits flowed through to customers)	Indefinitely	143,546		143,546
Other accrued benefits	Indefinitely	25,974		24,946
Net WRAM and MCBA long-term accounts receivable	Various	49,243		41,558
Asset retirement obligations, net	Indefinitely	25,335		24,548
Interim rates memorandum account (IRMA) long-term accounts receivable	1 - 2 years	3,533		3,682
Tank coating	Various	16,507		16,395
Recoverable property losses	Various	2,998		3,144
PCBA	Various	19,233		19,091
General district balancing account receivable	1 year	383		377
Customer assistance program (CAP) and Rate support fund (RSF) accounts receivable	1 year	3,402		2,965
Other regulatory assets	Various	3,109		3,197
Total Regulatory Assets		$	293,263	$	283,620
Regulatory Liabilities
Future tax benefits due to customers		$	131,155	$	131,155
Pension and retiree group health		58,678		58,678
HCBA		15,312		14,318
PCBA		1,999		—
CEBA		860		6,036
Net WRAM and MCBA long-term payable		262		172
Other components of net periodic benefit cost		4,059		2,475
Other regulatory liabilities		1,025		845
Total Regulatory Liabilities		$	213,350	$	213,679

XML

Fair Value of Financial Assets and Liabilities (Tables)

3 Months Ended

Mar. 31, 2023

Fair Value Disclosures [Abstract]

Schedule of Fair Value of Long-term Debt

	March 31, 2023
			Fair Value
	Cost		Level 1	Level 2		Level 3	Total
Long-term debt, including current maturities, net	$	1,055,637	—	$	1,023,472	—	$	1,023,472

	December 31, 2022
			Fair Value
	Cost		Level 1		Level 2		Level 3		Total
Long-term debt, including current maturities, net	$	1,055,797	$	—	$	977,227	$	—	$	977,227

XML

Immaterial Restatement of Prior Period Financial Statements (Tables)

3 Months Ended

Mar. 31, 2023

Accounting Changes and Error Corrections [Abstract]

Schedule of Error Corrections and Prior Period Adjustments

The corrections to the Company’s retained earnings and total equity as of March 31, 2022, reported in note 4, were as follows:

	As of March 31, 2022
	As Previously Reported		Corrections		As Corrected
	(In thousands)
Retained earnings	$	513,593	$	(11,063)	$	502,530
Total equity	$	1,169,878	$	(11,063)	$	1,158,815

XML

Organization and Operations and Basis of Presentation (Details)	3 Months Ended
	Mar. 31, 2023 segment
Noncontrolling Interest [Line Items]
Number of reportable segments	1
BVRT Water Company
Noncontrolling Interest [Line Items]
Noncontrolling interest	6.20%

XML

Summary of Significant Accounting Policies - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 145,225	$ 158,933
Regulatory balancing account revenue	(14,125)	14,060
Operating revenue	131,100	172,993
Total non-regulated revenue	4,623	5,197
Residential
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	84,035	91,743
Business
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	31,974	32,163
Multiple residential
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	14,997	14,817
Industrial
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	5,634	5,773
Public authorities
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	6,425	6,985
Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	2,160	7,452
Operating and maintenance revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	3,235	3,405
Other non-regulated revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	782	1,150
Non-regulated revenue from contracts with customers
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	4,017	4,555
Lease revenue	606	642
Total non-regulated revenue	$ 4,623	$ 5,197

XML

Summary of Significant Accounting Policies - Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 5,629	$ 3,743
Provision for credit loss expense	939	5,887
Write-offs	(1,592)	(4,380)
Recoveries	141	379
Total ending allowance balance	$ 5,117	$ 5,629

XML

Summary of Significant Accounting Policies - Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Accounting Policies [Abstract]
Cash and cash equivalents	$ 52,286	$ 62,100
Restricted cash	34,153	22,925
Total cash, cash equivalents, and restricted cash shown in the statements of cash flows	$ 86,439	$ 85,025	$ 71,852	$ 80,653

XML

Stock-based Compensation - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Stock-based Compensation
Shares authorized to be issued under the plan (in shares)	2,000,000
Recorded compensation costs for the RSAs and RSUs	$ 0.1	$ 0.5
RSAs
Stock-based Compensation
Period for recognition	2 years
Unrecognized compensation cost	$ 3.5
Performance-Based Restricted Stock Unit Awards (RSUs)
Stock-based Compensation
Period for recognition	2 years 1 month 6 days
Unrecognized compensation cost	$ 3.9
Performance period	3 years
Performance-Based Restricted Stock Unit Awards (RSUs) | Minimum
Stock-based Compensation
Options vested on anniversary date	0.00%
Performance-Based Restricted Stock Unit Awards (RSUs) | Maximum
Stock-based Compensation
Options vested on anniversary date	200.00%
Officer | RSAs
Stock-based Compensation
Vesting period	36 months
Period for recognition	36 months
Director | RSAs
Stock-based Compensation
Vesting period	12 months
Period for recognition	12 months

XML

Stock-based Compensation - RSAs & Performance-Based RSUs (Details)	3 Months Ended
	Mar. 31, 2023 $ / shares shares
RSAs
Number of shares
Beginning balance (in shares) | shares	52,066
Granted (in shares) | shares	42,301
Vested (in shares) | shares	(28,426)
Forfeited (in shares) | shares	0
Ending balance (in shares) | shares	65,941
Weighted average price at grant
Beginning balance (in dollars per share) | $ / shares	$ 55.77
Granted (in dollars per share) | $ / shares	55.46
Vested (in dollars per share) | $ / shares	56.02
Forfeited (in dollars per share) | $ / shares	0
Ending balance (in dollars per share) | $ / shares	$ 55.47
RSUs
Number of shares
Beginning balance (in shares) | shares	92,625
Granted (in shares) | shares	42,464
Performance criteria adjustment (in shares) | shares	14,822
Vested (in shares) | shares	(40,589)
Forfeited (in shares) | shares	(9,250)
Ending balance (in shares) | shares	100,072
Weighted average price at grant
Beginning balance (in dollars per share) | $ / shares	$ 54.06
Granted (in dollars per share) | $ / shares	55.46
Performance criteria adjustment (in dollars per share) | $ / shares	56.84
Vested (in dollars per share) | $ / shares	56.84
Forfeited (in dollars per share) | $ / shares	53.66
Ending balance (in dollars per share) | $ / shares	$ 55.38

XML

Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended
	Apr. 29, 2022	Mar. 31, 2023	Dec. 31, 2022	Jul. 26, 2022	Jul. 25, 2022
Equity [Abstract]
Maximum consideration on transaction	$ 350.0
Sale of stock, agreement term	3 years
Sale of stock, number of shares issued in transaction (in shares)		326,042
Issuance of common stock, net		$ 18.2
Payments for commissions		$ 0.2
Common stock, shares authorized (in shares)		136,000,000	136,000,000	136,000,000	68,000,000
Common stock, par value (in dollars per share)		$ 0.01	$ 0.01	$ 0.01

XML

Equity - Changes in Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period (in shares)	55,598,000
Balance at beginning of period	$ 1,322,394	$ 1,171,917
Net income (loss)	(22,334)	894
Issuance of common stock	17,384	1,107
Repurchase of common stock	0	(1,674)
Dividends paid on common stock	(14,456)	(13,429)
Investment in business with noncontrolling interest	$ 0	0
Balance at end of period (in shares)	55,991,000
Balance at end of period	$ 1,302,988	$ 1,158,815
Dividends paid on common stock (in dollars per share)	$ 0.2600	$ 0.2500
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period (in shares)	55,598,000	53,716,000
Balance at beginning of period	$ 556	$ 537
Issuance of common stock (in shares)	420,000	85,000
Issuance of common stock	$ 4	$ 1
Repurchase of common stock (in shares)	(27,000)	(28,000)
Balance at end of period (in shares)	55,991,000	53,773,000
Balance at end of period	$ 560	$ 538
Additional Paid-in Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	760,336	651,121
Issuance of common stock	17,380	1,106
Repurchase of common stock	0	(1,674)
Investment in business with noncontrolling interest	(111)	(54)
Balance at end of period	777,605	650,499
Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	556,698	514,873
Net income (loss)	(22,211)	1,086
Dividends paid on common stock	(14,456)	(13,429)
Balance at end of period	520,031	502,530
Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	4,804	5,386
Net income (loss)	(123)	(192)
Investment in business with noncontrolling interest	111	54
Balance at end of period	$ 4,792	$ 5,248

XML

(Loss) Earnings Per Share of Common Stock (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share [Abstract]
Net (loss) income	$ (22,334)	$ 894
Net loss attributable to noncontrolling interests	(123)	(192)
Net income attributable to California Water Service Group	$ (22,211)	$ 1,086
Weighted average common shares outstanding, basic (in shares)	55,666	53,731
Weighted average common shares outstanding, dilutive (in shares)	55,666	53,775
(Loss) earnings per share of common stock - basic (in dollars per share)	$ (0.40)	$ 0.02
(Loss) earnings per share of common stock - diluted (in dollars per share)	$ (0.40)	$ 0.02

XML

Pension Plan and Other Postretirement Benefits (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Pension Plan
Pension Plan and Other Postretirement Benefits
Employer cash contributions	$ 2,900	$ 5,100
Estimated cash contributions in the current fiscal year	2,900
Components of the pension plans and other postretirement benefits
Service cost	6,046	9,235
Interest cost	8,746	6,329
Expected return on plan assets	(13,421)	(11,307)
Amortization of prior service cost	131	242
Recognized net actuarial (gain) loss	(637)	999
Net periodic benefit cost (benefit)	865	5,498
Other Benefits
Pension Plan and Other Postretirement Benefits
Employer cash contributions	200	100
Estimated cash contributions in the current fiscal year	200
Components of the pension plans and other postretirement benefits
Service cost	1,126	1,683
Interest cost	1,297	1,008
Expected return on plan assets	(2,636)	(2,482)
Amortization of prior service cost	39	39
Recognized net actuarial (gain) loss	(581)	(228)
Net periodic benefit cost (benefit)	$ (755)	$ 20

XML

Short-term and Long-term Borrowings (Details) - USD ($)			3 Months Ended
	Mar. 31, 2023	Mar. 29, 2019	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Cal Water
Debt Instrument [Line Items]
Outstanding borrowings	$ 95,000,000		$ 95,000,000		$ 35,000,000
Parent Company
Debt Instrument [Line Items]
Outstanding borrowings	35,000,000		35,000,000		$ 35,000,000
Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 600,000,000		$ 600,000,000
Debt instrument, term	5 years
Average borrowing rate			5.49%	0.98%
Revolving Credit Facility | Base Rate | Minimum
Debt Instrument [Line Items]
Interest rate		0.00%
Revolving Credit Facility | Base Rate | Maximum
Debt Instrument [Line Items]
Interest rate		0.25%
Revolving Credit Facility | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Minimum
Debt Instrument [Line Items]
Interest rate		0.80%
Revolving Credit Facility | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Maximum
Debt Instrument [Line Items]
Interest rate		1.25%
Revolving Credit Facility | Cal Water
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 400,000,000		$ 400,000,000
Incremental expansion of borrowing capacity	150,000,000		150,000,000
Revolving Credit Facility | Parent Company
Debt Instrument [Line Items]
Maximum borrowing capacity	200,000,000		200,000,000
Incremental expansion of borrowing capacity	$ 50,000,000		$ 50,000,000

XML

Income Taxes - Provision for Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Income tax benefit	$ (3,850)	$ (905)

XML

Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Increase in income tax expense	$ 3,000
Income tax benefit	$ 3,850	$ 905
Effective tax rate estimate	14.60%	12.00%
Unrecognized tax benefits	$ 14,000	$ 16,200
Tax benefits that, if recognized, would affect the effective tax rate	$ 4,500	$ 4,100

XML

Regulatory Assets and Liabilities - Schedule of Regulatory Assets and Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Regulatory Assets and Liabilities
Total Regulatory Assets	$ 293,263	$ 283,620
Total Regulatory Liabilities	213,350	213,679
Future tax benefits due to customers
Regulatory Assets and Liabilities
Total Regulatory Liabilities	131,155	131,155
Pension and retiree group health
Regulatory Assets and Liabilities
Total Regulatory Liabilities	58,678	58,678
PCBA
Regulatory Assets and Liabilities
Total Regulatory Liabilities	1,999	0
HCBA
Regulatory Assets and Liabilities
Total Regulatory Liabilities	15,312	14,318
CEBA
Regulatory Assets and Liabilities
Total Regulatory Liabilities	860	6,036
Net WRAM and MCBA long-term payable
Regulatory Assets and Liabilities
Total Regulatory Liabilities	262	172
Other components of net periodic benefit cost
Regulatory Assets and Liabilities
Total Regulatory Liabilities	4,059	2,475
Other regulatory liabilities
Regulatory Assets and Liabilities
Total Regulatory Liabilities	1,025	845
Retiree group health
Regulatory Assets and Liabilities
Total Regulatory Assets	0	171
Future tax benefits due to customers
Regulatory Assets and Liabilities
Total Regulatory Assets	143,546	143,546
Other accrued benefits
Regulatory Assets and Liabilities
Total Regulatory Assets	25,974	24,946
Net WRAM and MCBA long-term accounts receivable
Regulatory Assets and Liabilities
Total Regulatory Assets	49,243	41,558
Asset retirement obligations, net
Regulatory Assets and Liabilities
Total Regulatory Assets	25,335	24,548
Interim rates memorandum account (IRMA) long-term accounts receivable
Regulatory Assets and Liabilities
Total Regulatory Assets	3,533	3,682
Tank coating
Regulatory Assets and Liabilities
Total Regulatory Assets	16,507	16,395
Recoverable property losses
Regulatory Assets and Liabilities
Total Regulatory Assets	2,998	3,144
PCBA
Regulatory Assets and Liabilities
Total Regulatory Assets	$ 19,233	19,091
General district balancing account receivable
Regulatory Assets and Liabilities
Recovery Period	1 year
Total Regulatory Assets	$ 383	377
Customer assistance program (CAP) and Rate support fund (RSF) accounts receivable
Regulatory Assets and Liabilities
Recovery Period	1 year
Total Regulatory Assets	$ 3,402	2,965
Other regulatory assets
Regulatory Assets and Liabilities
Total Regulatory Assets	$ 3,109	$ 3,197
Minimum | Interim rates memorandum account (IRMA) long-term accounts receivable
Regulatory Assets and Liabilities
Recovery Period	1 year
Maximum | Interim rates memorandum account (IRMA) long-term accounts receivable
Regulatory Assets and Liabilities
Recovery Period	2 years

XML

Regulatory Assets and Liabilities - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Schedule of Regulatory Assets and Liabilities [Line Items]
Short-term portion of the regulatory assets	$ 50,335		$ 66,826
Short-term portion of the regulatory liabilities	$ 17,272		$ 12,240
Return on equity	9.20%
Approved debt	5.51%
Approved equity	53.40%
Approved equity to debt ratio	46.60%
Proposed return on equity	10.35%
Requested debt	4.23%
Requested equity	53.40%
Requested equity to debt ratio	46.60%
Decrease on annual revenue	$ 11,000	$ 11,000
California Public Advocates Office
Schedule of Regulatory Assets and Liabilities [Line Items]
Recommended return on equity	7.81%
Recommended debt	4.23%
Recommended equity	49.40%
Recommended equity to debt ratio	50.60%

XML

Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Jan. 31, 2023	Dec. 31, 2022	Mar. 31, 2023
Lessee, Lease, Description [Line Items]
Contingency loss recognized liability		$ 5.3	$ 4.6
Camino Real | Supply Commitment
Lessee, Lease, Description [Line Items]
Payments for other commitments	$ 11.1	$ 21.5

XML

Fair Value of Financial Assets and Liabilities - Narrative (Details)	3 Months Ended
	Mar. 31, 2023
Fair Value Disclosures [Abstract]
Risk premium (as a percent)	0.60%

XML

Fair Value of Financial Assets and Liabilities - Schedule of Long Term Debt at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Cost
Fair Value of Financial Assets and Liabilities
Long-term debt, including current maturities, net	$ 1,055,637	$ 1,055,797
Fair Value
Fair Value of Financial Assets and Liabilities
Long-term debt, including current maturities, net	1,023,472	977,227
Fair Value | Level 1
Fair Value of Financial Assets and Liabilities
Long-term debt, including current maturities, net	0	0
Fair Value | Level 2
Fair Value of Financial Assets and Liabilities
Long-term debt, including current maturities, net	1,023,472	977,227
Fair Value | Level 3
Fair Value of Financial Assets and Liabilities
Long-term debt, including current maturities, net	$ 0	$ 0

XML

Immaterial Restatement of Prior Period Financial Statements (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Retained earnings	$ 520,031	$ 556,698	$ 502,530
Total equity	$ 1,302,988	$ 1,322,394	1,158,815	$ 1,171,917
As Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Retained earnings			513,593
Total equity			1,169,878
Corrections
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Retained earnings			(11,063)
Total equity			$ (11,063)