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 June 30, 2022

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 June 30, 2022 — there were approximately 54,356,000 shares of common stock outstanding.

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TABLE OF CONTENTS

	Page
PART I Financial Information	3
Item 1 Financial Statements	3
Condensed Consolidated Balance Sheets (unaudited) as of June 30, 2022 and December 31, 2021	3
Condensed Consolidated Statements of Operations (unaudited) For the Three Months Ended June 30, 2022 and 2021	4
Condensed Consolidated Statements of Operations (unaudited) For the Six Months Ended June 30, 2022 and 2021	5
Condensed Consolidated Statements of Cash Flows (unaudited) For the Six Months Ended June 30, 2022 and 2021	6
Notes to Unaudited Condensed Consolidated Financial Statements	7
Item 2 Management’s Discussion and Analysis of Financial Condition and Results of Operations	19
Item 3 Quantitative and Qualitative Disclosure about Market Risk	32
Item 4 Controls and Procedures	32
PART II Other Information	32
Item 1 Legal Proceedings	32
Item 1A Risk Factors	33
Item 6 Exhibits	33
Signatures	34

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)

	June 30, 2022		December 31, 2021
ASSETS
Utility plant:
Utility plant	$	4,341,433	$	4,197,344
Less accumulated depreciation and amortization	(1,406,757)		(1,350,482)
Net utility plant	2,934,676		2,846,862
Current assets:
Cash and cash equivalents	61,749		78,380
Receivables:
Customers, net	68,404		60,785
Regulatory balancing accounts	56,625		78,597
Other, net	19,803		18,452
Unbilled revenue, net	38,796		32,760
Materials and supplies at weighted average cost	10,567		9,511
Taxes, prepaid expenses, and other assets	20,708		21,973
Total current assets	276,652		300,458
Other assets:
Regulatory assets	287,625		285,692
Goodwill	36,814		36,814
Other assets	146,985		153,445
Total other assets	471,424		475,951
TOTAL ASSETS	$	3,682,752	$	3,623,271
CAPITALIZATION AND LIABILITIES
Capitalization:
Common stock, $0.01 par value; 68,000 shares authorized, 54,356 and 53,716 outstanding in 2022 and 2021, respectively	$	544	$	537
Additional paid-in capital	682,353		651,121
Retained earnings	519,625		525,936
Noncontrolling interests	4,784		5,386
Total equity	1,207,306		1,182,980
Long-term debt, net	1,054,170		1,055,794
Total capitalization	2,261,476		2,238,774
Current liabilities:
Current maturities of long-term debt, net	5,783		5,192
Short-term borrowings	70,000		35,000
Accounts payable	139,732		144,369
Regulatory balancing accounts	9,627		17,547
Accrued interest	6,740		6,542
Accrued expenses and other liabilities	54,201		47,926
Total current liabilities	286,083		256,576
Deferred income taxes	300,489		298,945
Pension	94,796		92,287
Regulatory liabilities and other	254,109		252,938
Advances for construction	198,674		198,086
Contributions in aid of construction	287,125		285,665
Commitments and contingencies (Note 10)
TOTAL CAPITALIZATION AND LIABILITIES	$	3,682,752	$	3,623,271

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	June 30, 2022		June 30, 2021
Operating revenue	$	206,194	$	213,123
Operating expenses:
Operations:
Water production costs	70,907		74,911
Administrative and general	32,686		31,756
Other operations	29,417		20,720
Maintenance	7,615		6,610
Depreciation and amortization	28,773		27,237
Income taxes	1,454		1,972
Property and other taxes	8,053		7,671
Total operating expenses	178,905		170,877
Net operating income	27,289		42,246
Other income and expenses:
Non-regulated revenue	7,002		5,374
Non-regulated expenses	(8,541)		(1,815)
Other components of net periodic benefit credit	3,765		2,688
Allowance for equity funds used during construction	1,042		848
Income tax expense on other income and expenses	(345)		(512)
Net other income	2,923		6,583
Interest expense:
Interest expense	11,586		11,206
Allowance for borrowed funds used during construction	(589)		(453)
Net interest expense	10,997		10,753
Net income	19,215		38,076
Net loss attributable to noncontrolling interests	(269)		(149)
Net income attributable to California Water Service Group	$	19,484	$	38,225
Earnings per share of common stock:
Basic	$	0.36	$	0.75
Diluted	0.36		0.75
Weighted average shares outstanding:
Basic	54,007		51,080
Diluted	54,042		51,080

 See Accompanying Notes to Unaudited Condensed Consolidated Financial Statements

4

CALIFORNIA WATER SERVICE GROUP

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

Unaudited (In thousands, except per share data)

For the six months ended	June 30, 2022		June 30, 2021
Operating revenue	$	379,187	$	360,860
Operating expenses:
Operations:
Water production costs	132,445		129,737
Administrative and general	66,097		62,125
Other operations	55,269		38,632
Maintenance	14,956		13,379
Depreciation and amortization	57,543		54,284
Income taxes	37		1,871
Property and other taxes	16,413		15,667
Total operating expenses	342,760		315,695
Net operating income	36,427		45,165
Other income and expenses:
Non-regulated revenue	12,199		10,946
Non-regulated expenses	(15,527)		(6,575)
Other components of net periodic benefit credit	7,779		5,667
Allowance for equity funds used during construction	2,017		1,392
Income tax expense on other income and expenses	(857)		(870)
Net other income	5,611		10,560
Interest expense:
Interest expense	23,081		21,428
Allowance for borrowed funds used during construction	(1,152)		(747)
Net interest expense	21,929		20,681
Net income	20,109		35,044
Net loss attributable to noncontrolling interests	(461)		(149)
Net income attributable to California Water Service Group	$	20,570	$	35,193
Earnings per share of common stock:
Basic	$	0.38	$	0.69
Diluted	0.38		0.69
Weighted average shares outstanding:
Basic	53,870		50,762
Diluted	53,918		50,762

 See Accompanying Notes to Unaudited Condensed Consolidated Financial Statements

5

CALIFORNIA WATER SERVICE GROUP

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

Unaudited (In thousands)

For the six months ended	June 30, 2022		June 30, 2021
Operating activities:
Net income	$	20,109	$	35,044
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	58,932		55,733
Change in value of life insurance contracts	7,169		(2,275)
Allowance for equity funds used during construction	(2,017)		(1,392)
Changes in operating assets and liabilities:
Receivables and unbilled revenue	(31,513)		(23,187)
Water Arrearages Payment Program	20,836		—
Accounts payable	(11,116)		(4,859)
Other current assets	418		(2,581)
Other current liabilities	316		3,075
Other changes in noncurrent assets and liabilities	26,776		8,092
Net cash provided by operating activities	89,910		67,650
Investing activities:
Utility plant expenditures	(144,588)		(138,522)
Life insurance proceeds	6,688		—
Purchase of life insurance contracts	(6,688)		—
Business acquisition, net of cash acquired	—		(6,451)
Asset acquisition	(6,319)		—
Return of investment	—		1,000
Net cash used in investing activities	(150,907)		(143,973)
Financing activities:
Short-term borrowings	55,000		125,000
Repayment of short-term borrowings	(20,000)		(350,000)
Issuance of long-term debt, net of debt issuance costs of $0 for 2022 and $1,064 for 2021	—		278,936
Repayment of long-term debt	(1,313)		(1,272)
Advances and contributions in aid of construction	13,142		13,953
Refunds of advances for construction	(4,508)		(5,722)
Repurchase of common stock	(1,786)		(1,524)
Issuance of common stock	31,268		62,603
Dividends paid	(26,881)		(23,283)
Distribution to noncontrolling interest	(348)		—
Net cash provided by financing activities	44,574		98,691
Change in cash, cash equivalents, and restricted cash	(16,423)		22,368
Cash, cash equivalents, and restricted cash at beginning of period	80,653		45,129
Cash, cash equivalents, and restricted cash at end of period	$	64,230	$	67,497
Supplemental information:
Cash paid for interest (net of amounts capitalized)	$	18,618	$	19,554
Supplemental disclosure of non-cash activities:
Accrued payables for investments in utility plant	$	56,522	$	53,325
Utility plant contribution by developers	$	9,866	$	13,563

 See Accompanying Notes to Unaudited Condensed Consolidated Financial Statements

6

CALIFORNIA WATER SERVICE GROUP

Notes to Unaudited Condensed Consolidated Financial Statements

June 30, 2022

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 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 and includes the Company's accounts and those of its wholly and non-wholly owned subsidiaries. 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, 2021 as filed with the SEC on February 24, 2022.

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 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 15% 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 15% 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 income or 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 income attributable to California Water Service Group excludes a net loss attributable to the noncontrolling interests.

7

Note 2. Summary of Significant Accounting Policies

Operating revenue

The following tables disaggregate the Company’s operating revenue by source for the three and six months ended June 30, 2022 and 2021:

	Three Months Ended June 30
	2022		2021
Revenue from contracts with customers	$	198,660	$	212,457
Regulatory balancing account revenue	7,534		666
Total operating revenue	$	206,194	$	213,123

	Six Months Ended June 30
	2022		2021
Revenue from contracts with customers	$	357,592	$	358,985
Regulatory balancing account revenue	21,595		1,875
Total operating revenue	$	379,187	$	360,860

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 a 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.

8

In the following tables, revenue from contracts with customers is disaggregated by class of customers for the three and six months ended June 30, 2022 and 2021:

	Three Months Ended June 30
	2022		2021
Residential	$	132,831	$	134,971
Business	39,278		35,730
Industrial	6,314		6,019
Public authorities	10,884		10,358
Other (a)	9,353		25,379
Total revenue from contracts with customers	$	198,660	$	212,457

	Six Months Ended June 30
	2022		2021
Residential	$	239,390	$	236,342
Business	71,441		63,452
Industrial	12,087		12,062
Public authorities	17,869		16,760
Other (a)	16,805		30,369
Total revenue from contracts with customers	$	357,592	$	358,985

(a) Other includes accrued unbilled revenue.

Regulatory balancing account revenue

The Company’s ability to recover revenue requirements authorized by the California Public Utilities Commission (CPUC) in its triennial general rate case (GRC) is decoupled from the volume of the sales. Regulatory balancing account revenue is revenue related to rate mechanisms authorized in California by the CPUC, which allow the Company to recover the authorized revenue and are not considered contracts with customers. These mechanisms include the following:

The Water Revenue Adjustment Mechanism (WRAM) allows the Company to recognize the adopted level of volumetric revenues. The variance between adopted volumetric revenues and actual billed volumetric revenues for metered accounts is recorded as regulatory balancing account revenue.

Cost-recovery rates, 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 are recorded as regulatory balancing account revenue.

Each district's WRAM and MCBA regulatory assets and liabilities are allowed to be netted against one another. The Company recognizes regulatory balancing account revenues that have been authorized for rate recovery, are objectively determinable and probable of recovery, and are expected to be collected within 24 months. To the extent that regulatory balancing account revenue is estimated to be collectible beyond 24 months, recognition is deferred.

The CPUC issued a decision effective August 27, 2020 requiring that Class A companies submitting GRC filings after the effective date to 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). Incremental Cost Balancing Accounts (ICBA), which are authorized by statute, would 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 would have 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 has complied with this decision in its recent 2021 GRC filing.

9

Non-regulated Revenue

The following tables disaggregate the Company’s non-regulated revenue by source for the three and six months ended June 30, 2022 and 2021:

	Three Months Ended June 30
	2022		2021
Operating and maintenance revenue	$	3,233	$	3,925
Other non-regulated revenue	3,081		796
Non-regulated revenue from contracts with customers	6,314		4,721
Lease revenue	688		653
Total non-regulated revenue	$	7,002	$	5,374

	Six Months Ended June 30
	2022		2021
Operating and maintenance revenue	$	6,638	$	8,013
Other non-regulated revenue	4,231		1,655
Non-regulated revenue from contracts with customers	10,869		9,668
Lease revenue	1,330		1,278
Total non-regulated revenue	$	12,199	$	10,946

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. During the first six months of 2022, the Company recorded a gain of $2.7 million related to company owned life insurance.

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 reviewed its allowance for credit losses utilizing a quantitative assessment, which included trend analysis of customer billing and collection, aging by customer class, and unemployment rates since the outbreak of COVID-19 in the first quarter of 2020. The Company also utilized a qualitative assessment, which considered 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 due to the outbreak of COVID-19. The Company has resumed the process

10

for shutoffs for non-payment in all of the Company's regulated utilities. The Company received and applied funds to customer accounts from the California Water and Wastewater Arrearage Payment Program (Program). The Program was created by the California Legislature, is administered by the State Water Resources Control Board and provided relief to community water and wastewater systems for unpaid bills – arrearages – related to the COVID-19 pandemic. Based on the above assessments, the Company adjusted its allowance for credit losses accordingly.

The following table presents the activity in the allowance for credit losses for the 6-month period ended June 30, 2022 and 12-month period ended December 31, 2021:

Allowance for credit losses	June 30, 2022		December 31, 2021
Beginning balance	$	3,743	$	5,246
Provision for credit loss expense	4,043		1,088
Write-offs	(1,260)		(3,113)
Recoveries	180		522
Total ending allowance balance	$	6,706	$	3,743

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:

	June 30, 2022		December 31, 2021
Cash and cash equivalents	$	61,749	$	78,380
Restricted cash (included in "taxes, prepaid expenses and other assets")	2,481		2,273
Total cash, cash equivalents, and restricted cash shown in the statements of cash flows	$	64,230	$	80,653

Accounting Standards Issued But Not Yet Adopted

In October of 2021, the Financial Accounting Standards Board issued Accounting Standards Update (ASU) 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers. In a business combination, an acquirer generally recognizes assets acquired and liabilities assumed, including contract assets and contract liabilities, at their respective fair value on the acquisition date. ASU 2021-08 requires that in a business combination, an acquirer should recognize and measure contract assets acquired and contract liabilities assumed in a business combination in accordance with Topic 606, Revenue from Contracts with Customers. The guidance provides certain practical expedients for acquirers when recognizing and measuring acquired contract assets and contract liabilities from revenue contracts with customers in a business combination. The guidance is effective for annual reporting periods beginning after December 15, 2022, including interim periods within those fiscal years. ASU 2021-08 should be applied prospectively for acquisitions occurring on or after the effective date of the amendments, and early adoption is permitted. The Company does not expect that the guidance will have a material impact on the Company's financial statements and footnote disclosures upon adoption.

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 six months of 2022, the Company granted Restricted Stock Awards (RSAs) to Officers and to members of the Board of Directors. An RSA share represents 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 June 30, 2022, there was approximately $2.9 million of total unrecognized compensation cost related to RSAs. The cost is expected to be recognized over a weighted average period of 1.8 years.

11

A summary of the status of the outstanding RSAs as of June 30, 2022 is presented below:

	Number of RSA Shares	Weighted-Average Grant-Date Fair Value
RSAs at January 1, 2022	62,691	$	53.49
Granted	42,057	56.42
Vested	(43,219)	53.63
RSAs at June 30, 2022	61,529	$	55.40

During the first six months of 2022, 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 2022 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, budgeted investment in utility plant, customer service standards, employee safety standards and water quality standards. 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 earned during the performance period. As of June 30, 2022, there was approximately $3.1 million of total unrecognized compensation cost related to RSUs. The cost is expected to be recognized over a weighted average period of 1.7 years.

A summary of the status of the outstanding RSUs as of June 30, 2022 is presented below:

	Number of RSU Shares	Weighted-Average Grant-Date Fair Value
RSUs at January 1, 2022	90,942	$	52.71
Granted	35,911	56.42
Performance criteria adjustment	12,173	58.63
Vested	(32,913)	58.63
Forfeited	(5,733)	52.83
RSUs at June 30, 2022	100,380	$	54.01

The Company has recorded compensation costs for the RSAs and RSUs that are included in administrative and general operating expenses in the amount of $1.5 million and $1.4 million for the three months ended June 30, 2022 and 2021, respectively. For the six months ended June 30, 2022 and 2021, the Company has recorded compensation costs for the RSAs and RSUs in the amount of $2.0 million and $2.7 million, respectively.

12

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 574,634 shares of common stock through its at-the-market equity program and raised proceeds of $30.2 million net of $0.3 million in commissions paid under the equity distribution agreement during the second quarter of 2022. The Company also incurred $0.1 million of equity issuance costs during the second quarter of 2022.

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

The Company’s changes in total equity for the six months ended June 30, 2022 and 2021 were as follows:

	Six months ended June 30, 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	$	525,936	$	5,386	$	1,182,980
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		513,593		5,248		1,169,878
Net income (loss)						19,484		(269)		19,215
Issuance of common stock	585	6		32,118						32,124
Repurchase of common stock	(2)	—		(111)						(111)
Dividends paid on common stock ($0.2500 per share)						(13,452)				(13,452)
Investment in business with noncontrolling interest				(153)				153		—
Distribution to noncontrolling interest								(348)		$	(348)
Balance at June 30, 2022	54,356	544		682,353		519,625		4,784		1,207,306

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	Six months ended June 30, 2021
	Common Stock			Additional Paid-in Capital		Retained Earnings		Noncontrolling Interests		Total Equity
	Shares	Amount
	(In thousands)
Balance at January 1, 2021	50,334	$	503	$	448,632	$	472,209	$	—	$	921,344
Net loss						(3,032)		—		(3,032)
Issuance of common stock	528	5		24,481						24,486
Repurchase of common stock	(27)	—		(1,415)						(1,415)
Dividends paid on common stock ($0.2300 per share)						(11,581)		—		(11,581)
Balance at March 31, 2021	50,835	508		471,698		457,596		—		929,802
Net income (loss)						38,225		(149)		38,076
Issuance of common stock	702	7		40,895						40,902
Repurchase of common stock	(2)	—		(109)						(109)
Dividends paid on common stock ($0.2300 per share)						(11,702)		—		(11,702)
Acquisition of business with noncontrolling interest				—		—		5,294		5,294
Balance at June 30, 2021	51,535	515		512,484		484,119		5,145		1,002,263

Note 5. Earnings Per Share of Common Stock

The computations of basic and diluted earnings per share of common stock are noted in the table below. Basic earnings per share of common stock is computed by dividing the net 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.

	Three Months Ended June 30
	2022		2021
	(In thousands, except per share data)
Net income	$	19,215	$	38,076
Net loss attributable to noncontrolling interests	$	(269)	$	(149)
Net income attributable to California Water Service Group	$	19,484	$	38,225
Weighted average common shares outstanding, basic	54,007		51,080
Weighted average common shares outstanding, dilutive	54,042		51,080
Earnings per share of common stock - basic	$	0.36	$	0.75
Earnings per share of common stock - diluted	$	0.36	$	0.75

	Six Months Ended June 30
	2022		2021
	(In thousands, except per share data)
Net income	$	20,109	$	35,044
Net loss attributable to noncontrolling interests	$	(461)	$	(149)
Net income attributable to California Water Service Group	$	20,570	$	35,193
Weighted average common shares outstanding, basic	53,870		50,762
Weighted average common shares outstanding, dilutive	53,918		50,762
Earnings per share of common stock - basic	$	0.38	$	0.69
Earnings per share of common stock - diluted	$	0.38	$	0.69

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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 $8.8 million and $14.1 million for the six months ended June 30, 2022 and 2021, respectively. Cash contributions made by the Company to the other postretirement benefit plans were $0.3 million and $1.5 million for the six months ended June 30, 2022 and 2021, respectively. The total 2022 estimated cash contribution to the pension plans and other postretirement benefits plans are expected to be approximately $16.1 million and $0.7 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 June 30
	Pension Plan				Other Benefits
	2022		2021		2022		2021
Service cost	$	9,235	$	9,010	$	1,683	$	1,611
Interest cost	6,329		5,319		1,008		805
Expected return on plan assets	(11,307)		(9,866)		(2,482)		(2,192)
Amortization of prior service cost	242		253		39		49
Recognized net actuarial loss	999		1,924		(228)		(110)
Net periodic benefit cost	$	5,498	$	6,640	$	20	$	163

	Six Months Ended June 30
	Pension Plan				Other Benefits
	2022		2021		2022		2021
Service cost	$	18,470	$	18,020	$	3,366	$	3,222
Interest cost	12,658		10,638		2,016		1,611
Expected return on plan assets	(22,614)		(19,732)		(4,964)		(4,383)
Amortization of prior service cost	484		506		78		97
Recognized net actuarial loss	1,998		3,848		(456)		(220)
Net periodic benefit cost	$	10,996	$	13,280	$	40	$	327

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.

Note 7. Short-term and Long-term Borrowings

On May 11, 2021, Cal Water completed the sale and issuance of $280.0 million in aggregate principal amount of First Mortgage Bonds (the Bonds) in a private placement. The Bonds consist of $130.0 million of 2.87% bonds, series ZZZ, maturing May 11, 2051, and $150.0 million of 3.02% bonds, series 1, maturing May 11, 2061. Interest on the bonds will accrue semi-annually and be payable in arrears on May 11 and November 11 of each year, commencing on November 11, 2021. The Bonds will rank equally with all of Cal Water’s other First Mortgage Bonds and will be secured by liens on Cal Water’s properties, subject to certain exceptions and permitted liens. Cal Water used the net proceeds from the sale of the Bonds to refinance existing indebtedness and for general corporate purposes. The Bonds were not registered under the Securities Act of 1933 and may not be offered or sold in the United States absent registration or an applicable exemption from registration requirements.

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On March 29, 2019, the Company and Cal Water entered into certain syndicated credit agreements, which provide for unsecured revolving credit facilities of up to an initial aggregate amount of $550.0 million for a term of five years. The Company and subsidiaries that it designates may borrow up to $150.0 million under the Company’s revolving credit facility. Cal Water may borrow up to $400.0 million under its revolving credit 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 revolving credit 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, these unsecured credit agreements contain financial covenants governing the Company and its subsidiaries' consolidated total capitalization ratio and interest coverage ratio.

The outstanding borrowings on the Company line of credit were $40.0 million and $35.0 million as of June 30, 2022 and December 31, 2021, respectively. There were $30.0 million and no borrowings on the Cal Water line of credit as of June 30, 2022 and December 31, 2021, respectively. The average borrowing rate for borrowings on the Company and Cal Water lines of credit during the six months ended June 30, 2022 was 1.35% compared to 0.99% 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 June 30
	2022		2021
Income tax expense	$	1,799	$	2,484

	Six Months Ended June 30
	2022	2021
Income tax expense	894	2,741

Income tax expense decreased $0.7 million to $1.8 million in the second quarter of 2022 mostly due to a reduction in net operating income.

Income tax expense decreased $1.8 million to $0.9 million in the six months of 2022 mostly due to a reduction in net operating income.

The Company’s effective tax rate was 11.5% before discrete items as of June 30, 2022 and 6.0% as of June 30, 2021. The increase in effective tax rate was primarily due to a decrease in TCJA refunds of excess deferred federal income taxes which was partially offset by an increase in state tax benefits from repairs.

The Company had unrecognized tax benefits of approximately $16.5 million and $14.2 million as of June 30, 2022 and 2021, respectively. Included in the balance of unrecognized tax benefits as of June 30, 2022 and 2021, is $4.2 million and $3.8 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.

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Note 9. Regulatory Assets and Liabilities

Regulatory assets and liabilities were comprised of the following as of June 30, 2022 and December 31, 2021:

	Recovery Period	June 30, 2022		December 31, 2021
Regulatory Assets
Pension and retiree group health	Indefinitely	$	17,278	$	17,607
Property-related temporary differences (tax benefits flowed through to customers)	Indefinitely	130,565		130,565
Other accrued benefits	Indefinitely	24,656		23,280
Net WRAM and MCBA long-term accounts receivable	1 - 2 years	37,581		29,789
Asset retirement obligations, net	Indefinitely	24,005		22,935
Interim rates memorandum account (IRMA) long-term accounts receivable	1 - 3 years	7,212		9,032
Tank coating	10 years	14,986		13,680
Recoverable property losses	Various	3,489		3,843
PCBA	1 year	20,040		21,500
Other components of net periodic benefit cost	Indefinitely	623		3,342
General district balancing account receivable	1 year	358		568
Customer assistance program (CAP) and Rate support fund (RSF) accounts receivable	1 year	3,262		5,991
Other regulatory assets	Various	3,570		3,560
Total Regulatory Assets		$	287,625	$	285,692
Regulatory Liabilities
Future tax benefits due to customers		$	134,378	$	135,027
Retiree group health		27,294		27,294
HCBA		12,713		9,687
CEBA		7,684		7,206
Net WRAM and MCBA long-term payable		479		143
Other regulatory liabilities		1,039		1,071
Total Regulatory Liabilities		$	183,587	$	180,428

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

The short-term regulatory assets were $56.6 million as of June 30, 2022 and $78.6 million as of December 31, 2021. The short-term regulatory assets as of June 30, 2022 and December 31, 2021 primarily consist of net WRAM and MCBA, IRMA, and PCBA receivables.

The short-term portions of regulatory liabilities were $9.6 million as of June 30, 2022 and $17.5 million as of December 31, 2021. The short-term regulatory liabilities as of June 30, 2022 primarily consist of TCJA liabilities. As of December 31, 2021, short-term regulatory liabilities primarily consist of TCJA and HCBA liabilities.

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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, 2021. 

As of June 30, 2022, there were no significant changes in these commitments from December 31, 2021.

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 the shareholder, 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 June 30, 2022 and December 31, 2021, the Company recognized a liability of $6.3 million and $3.5 million, respectively, for known 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.

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.

18

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%.

	June 30, 2022
			Fair Value
	Cost		Level 1	Level 2		Level 3	Total
Long-term debt, including current maturities, net	$	1,059,953	—	$	1,093,248	—	$	1,093,248

	December 31, 2021
			Fair Value
	Cost		Level 1		Level 2		Level 3		Total
Long-term debt, including current maturities, net	$	1,060,986	$	—	$	1,338,831	$	—	$	1,338,831

Note 12. Subsequent Event

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

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 (Act). The forward-looking statements are intended to qualify under provisions of the federal securities laws for "safe harbor" treatment established by the Act. 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, including statements regarding the anticipated impact on our business of the ongoing COVID-19 pandemic and related public health measures. 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,” “estimates,” “assumes,” “anticipates,” “projects,” "progress," “predicts,” "hopes," "targets," “forecasts,” “should,” “seeks,” or variations of these words or similar expressions are intended to identify forward-looking statements. 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:

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

•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;

•changes in regulatory commissions' policies and procedures, such as the 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);

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•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;

•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;

•stagnating or worsening business and economic conditions, including inflationary pressures, general economic slowdown or a recession, increasing interest rates, and changes in monetary policy; 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, 2021.

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 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.

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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, 2021. They include:

•revenue recognition;

•regulated utility accounting;

•income taxes; and

•pension and postretirement health care benefits.

For the six months ended June 30, 2022, 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 2021 and for the six months ended June 30, 2022 and through July 28, 2022, the COVID-19 pandemic has not had a significant impact on our business or operations. We have resumed the process for 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 continue to be vigilant for employee and customer safety, we encourage and incentivize vaccination, and we 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.

RESULTS OF SECOND QUARTER 2022 OPERATIONS

COMPARED TO SECOND QUARTER 2021 OPERATIONS

Dollar amounts in thousands unless otherwise stated 

Overview

Net Income Attributable to California Water Service Group

Net income attributable to California Water Service Group for the second quarter of 2022 was $19.5 million or $0.36 earnings per diluted common share, compared to net income attributable to California Water Service Group of $38.2 million or $0.75 earnings per diluted common share for the second quarter of 2021.

The $18.7 million decrease in net income was primarily due to a reduction of $15.2 million in accrued unbilled revenue and a $6.2 million decrease in unrealized gains on non-qualified benefit plan investments. Increases of $8.7 million in other operations expense, $1.6 million in depreciation and amortization, and $1.0 million in maintenance expense also reduced net income. The decrease in net income was partially offset by general rate increases of $6.9 million, increase in operating revenue from a change in deferred revenue of $5.1 million, and a gain from company owned life insurance of $2.3 million. The $5.1 million change in deferred revenue offset $4.2 million of the increase in other operations expense.

The change in accrued unbilled revenue was mostly driven by the timing of when meter reads were completed during the month of June 2022 as compared to June 2021 and a decrease in customer consumption. In the second quarter of 2022, accrued unbilled revenue added $3.8 million to revenue as compared to $19.0 million for the same period last year. Over the past ten years, annual changes in accrued unbilled revenue have typically been less than $2.0 million. We expect the difference between 2022 and 2021 annual accrued unbilled revenue to be less than $2.0 million. Changes to unrealized gains on benefit plan investments were caused by unfavorable market conditions.

21

Operating revenue decreased $6.9 million, or 3.3%, to $206.2 million in the second quarter of 2022 as compared to the second quarter of 2021, with such change attributed to the following:

Net change due to WRAM, rate changes, usage, and other (1)	$	(4,723)
MCBA Revenue (2)	(7,292)
Other balancing account revenue (3)	(31)
Deferral of revenue (4)	5,117
Net operating revenue decrease	$	(6,929)

1.The net change due to WRAM, rate changes, usage, and other in the above table was primarily driven by a $15.2 million decrease in accrued unbilled revenue, partially offset by rate increases, the components of which are set forth in the table below, and a $1.4 million increase in operating revenue in Hawaii due to an increase in customer usage and prior year acquisitions.

Escalation rate increases	5,140
Purchased water and pump tax offsets	1,722
Rate base offsets	68
Total increase in rates	$	6,930

2.MCBA revenue is the variance between adopted water production costs and actual water production costs. For the second quarter of 2022, we recorded a decrease to revenue of $0.3 million as compared to an increase to revenue of $7.0 million for the second quarter 2021. The MCBA revenue decrease in the second quarter of 2022 as compared to the second quarter of 2021 resulted from a decrease in actual water production costs relative to adopted water production costs in the second quarter of 2022, due to a 16.1% decrease in purchased water production.

3.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. For the second quarter of 2022 and 2021, we recognized a net decrease to revenue of $1.8 million for these balancing accounts primarily due to lower actual health care expenses relative to adopted.

4.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 decreased in the second quarter of 2022 as compared to the second quarter of 2021 due to a decrease in the balancing account revenue expected to be collected beyond 24 months.

Total Operating Expenses

Total operating expenses increased $8.0 million, or 4.7%, to $178.9 million in the second quarter of 2022, as compared to $170.9 million in the second quarter of 2021.

Water production cost consists of purchased water, purchased power, and pump taxes. It represents the largest component of total operating expenses, accounting for approximately 39.6% of total operating expenses for the second quarter of 2022, as compared to 43.8% of total operating expenses for the second quarter of 2021. Water production costs decreased 5.3% in the second quarter of 2022 as compared to the same period last year primarily due to a decrease in purchased water production.

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

	Three Months Ended June 30
	2022		2021
Well production	49	%	47	%
Purchased	48	%	49	%
Surface	3	%	4	%
Total	100	%	100	%

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

	Three Months Ended June 30
	2022		2021		Change
Purchased water	$	55,929	$	62,139	$	(6,210)
Purchased power	11,144		9,171		1,973
Pump taxes	3,834		3,601		233
Total	$	70,907	$	74,911	$	(4,004)

Administrative and general expense increased $0.9 million, or 2.9%, to $32.7 million in the second quarter of 2022, as compared to $31.8 million in the second quarter of 2021. The increase was primarily due to increases in outside legal and consulting service costs of $0.8 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, creating a corresponding change to revenue.

Other operations expenses increased $8.7 million, or 42.0%, to $29.4 million in the second quarter of 2022, as compared to $20.7 million in the second quarter of 2021. The increase was primarily due to an increase in the costs associated with the reduction of deferred revenue of $4.2 million, credit losses of $1.2 million, and conservation program expenses of $0.9 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, creating a corresponding change to revenue.

Maintenance expense increased $1.0 million, or 15.2%, to $7.6 million in the second quarter of 2022, as compared to $6.6 million in the second quarter of 2021, due to repairs of services and equipment.

Depreciation and amortization expense increased $1.6 million, or 5.7%, to $28.8 million in the second quarter of 2022, as compared to $27.2 million in the second quarter of 2021, mostly due to utility plant placed in service in 2021.

Income tax expense decreased $0.5 million to $1.5 million in the second quarter of 2022 mostly due to a reduction in net operating income in the second quarter of 2022 as compared to prior year.

Property and other taxes increased $0.4 million to $8.1 million in the second quarter of 2022, as compared to $7.7 million in the same period of 2021, mostly due to an increase in assessed property values for utility plant in service.

Other Income and Expenses

Net other income decreased $3.7 million to $2.9 million in the second quarter of 2022, as compared to a net other income of $6.6 million in the second quarter of 2021, due primarily to a $6.2 million decrease in unrealized gains on non-qualified benefit plan investments, which was partially offset by a $2.3 million gain on company owned life insurance and $1.1 million increase in other components of net periodic benefit credit.

Interest Expense

Net interest expense increased $0.2 million, or 2.3%, to $11.0 million in the second quarter of 2022, as compared to $10.8 million in the second quarter of 2021. The increase was due primarily to an increase in interest rates.

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RESULTS OF THE SIX MONTHS ENDED JUNE 30, 2022 OPERATIONS

COMPARED THE SIX MONTHS ENDED JUNE 30, 2021 OPERATIONS

Dollar amounts in thousands unless otherwise stated 

Overview

Net Income Attributable to California Water Service Group

Net income attributable to California Water Service Group for the first six months of 2022 was $20.6 million or $0.38 earnings per diluted common share, compared to net income attributable to California Water Service Group of $35.2 million or $0.69 earnings per diluted common share for the first six months of 2021.

The $14.6 million decrease in net income was primarily due to a reduction of $12.8 million in accrued unbilled revenue and a $9.4 million decrease in unrealized gains on non-qualified benefit plan investments. Increases of $16.7 million in other operations expense, $4.0 million in administrative and general expense, $3.2 million in depreciation and amortization, $1.6 million in maintenance expense, and $1.2 million in net interest expense also reduced net income. The decrease in net income was partially offset by general rate increases of $12.1 million, increase in operating revenue from a change in deferred revenue of $14.5 million, gain from company owned life insurance of $2.7 million, increase in other components of net periodic benefit credit of $2.1 million, decrease in income tax expense of $1.8 million, and increase in non-regulated revenue of $1.3 million. The $14.5 million change in deferred revenue offset $11.9 million of the increase in other operations expense.

The change in accrued unbilled revenue was mostly driven by the timing of when meter reads were completed during the month of June 2022 as compared to June 2021 and a decrease in customer consumption. In the first six months of 2022, accrued unbilled revenue added $6.1 million to revenue as compared to $18.9 million for the same period last year. We expect the difference between 2022 and 2021 annual accrued unbilled revenue to be less than $2.0 million. Changes to unrealized gains on benefit plan investments were caused by unfavorable market conditions.

Operating Revenue

Operating revenue increased $18.3 million, or 5.1%, to $379.2 million for the first six months of 2022 as compared to the first six months of 2021, with such change attributed to the following:

Net change due to WRAM, rate changes, usage, and other (1)	$	6,771
MCBA Revenue (2)	(3,057)
Other balancing account revenue (3)	71
Deferral of revenue (4)	14,542
Net operating revenue increase	$	18,327

1.The net change due to WRAM, rate changes, usage, and other in the above table was primarily driven by rate increases, the components of which are set forth in the table below and a $3.4 million increase in Hawaii Water due to an increase in customer usage and prior year acquisitions. The increase was partially offset by a $12.8 million decrease in accrued unbilled revenue.

Escalation rate increases	8,993
Purchased water and pump tax offsets	3,035
Rate base offsets	95
Total increase in rates	$	12,123

2.MCBA revenue is the variance between adopted water production costs and actual water production costs. For the first six months of 2022, we recognized $8.0 million of MCBA revenue as compared to $11.0 million of MCBA revenue for the first six months of 2021. The MCBA revenue decrease in the first six months of 2022 as compared to the first six months of 2021 resulted from a decrease in actual water production costs relative to adopted water production costs due to a 6.4% decrease in purchased water production.

3.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. For the first six months of 2022 and 2021, we recognized a net decrease to revenue of $3.9

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million for these balancing accounts. The decrease in revenue for both 2022 and 2021 was primarily due to lower actual health care expenses relative to adopted.

4.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 decreased in the first six months of 2022 as compared to the first six months of 2021 due to a decrease in the balancing account revenue expected to be collected beyond 24 months.

Total Operating Expenses

Total operating expenses increased $27.1 million, or 8.6%, to $342.8 million for the first six months of 2022, as compared to $315.7 million for the first six months of 2021.

Water production costs consists of purchased water, purchased power, and pump taxes. It represents the largest component of total operating expenses, accounting for approximately 38.6% of total operating expenses in the first six months of 2022, as compared to 41.1% of total operating expenses in the first six months of 2021. Water production costs increased 2.1% in the first six months of 2022 as compared to the same period last year primarily due to increased purchased power rates and well production.

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

	Six Months Ended June 30
	2022		2021
Well production	48	%	47	%
Purchased	48	%	49	%
Surface	4	%	4	%
Total	100	%	100	%

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

	Six Months Ended June 30
	2022		2021		Change
Purchased water	$	104,721	$	106,905	$	(2,184)
Purchased power	19,543		15,674		3,869
Pump taxes	8,181		7,158		1,023
Total	$	132,445	$	129,737	$	2,708

Administrative and general increased $4.0 million, or 6.4%, to $66.1 million in the first six months of 2022, as compared to $62.1 million in the first six months of 2021. The increase was primarily due to increases in outside legal and consulting service costs of $1.8 million, training and travel costs of $1.3 million, and employee health care costs of $0.8 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, creating a corresponding change to revenue.

Other operations expenses increased $16.7 million, or 43.1%, to $55.3 million in the first six months of 2022, as compared to $38.6 million in the first six months of 2021. The increase was primarily due to an increase in the costs associated with the reduction of deferred revenue of $11.9 million, water and wastewater treatment costs of $1.5 million, and conservation program expenses of $1.2 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, creating a corresponding change to revenue.

Maintenance expense increased $1.6 million, or 11.8%, to $15.0 million in the first six months of 2022, as compared to $13.4 million in the first six months of 2021, mostly due to an increase in repairs of services, tanks, and equipment.

Depreciation and amortization expense increased $3.2 million, or 6.0%, to $57.5 million in the first six months of 2022, as compared to $54.3 million in the first six months of 2021, mostly due to capital additions in 2021.

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Income tax expense decreased $1.8 million to $0.04 million in the first six months of 2022, as compared to $1.9 million in the first six months of 2021. The decrease was primarily due to a decrease in net operating income in the first six months of 2022 as compared to prior year.

Property and other taxes increased $0.7 million to $16.4 million in the first six months of 2022, as compared to $15.7 million in the same period of 2021, mostly due to an increase in assessed property values.

Other Income and Expenses

Net other income decreased $5.0 million to $5.6 million in the first six months of 2022, as compared to net other income of $10.6 million in the first six months of 2021, due primarily to a $9.4 million decrease in unrealized gains on non-qualified benefit plan investments, which was partially offset by a $2.7 million gain on company owned life insurance and $2.1 million increase in other components of net periodic benefit credit.

Interest Expense

Net interest expense increased $1.2 million, or 6%, to $21.9 million in the first six months of 2022, as compared to $20.7 million in the first six months of 2021. The increase was due primarily to an increase in interest rates.

REGULATORY MATTERS

2021 California Regulatory Activity

2021 GRC Filing

California Public Advocates Office reviewed Cal Water's 2021 GRC filing and submitted its report in February 2022. Cal Water reviewed California Public Advocates Office recommendations, evaluated the validity of the underlying data, and composed and filed rebuttal testimony with the CPUC in April 2022. Settlement negotiations with the California Public Advocates Office and intervenors began in the second quarter of 2022 and evidentiary hearings were held in the second quarter of 2022. The timing of the final decision is uncertain. We anticipate partial interim rate increases will be authorized to be added to customer billings effective January 1, 2023.

2021 Cost of Capital Application

On May 3, 2021, 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 53.4% equity capital structure. Cal Water requested a return on equity of 10.35%, a cost of debt of 4.23%, and a 53.4% equity capital structure. The California Public Advocates Office recommends a return on equity of 7.81%, a cost of debt of 4.23%, and a 49.4% equity capital structure. Evidentiary hearings were held in May 2022 and the case was submitted to the CPUC at the end of the second quarter of 2022. The CPUC will evaluate the proposal along with proposals of other parties, and in accordance with its standard process, is currently expected to issue a decision in the latter half of 2022 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. In the event that the CPUC adopts the cost of capital components retroactively to January 1, 2022, the reduced cost of debt, if adopted at our proposed equity capital structure, would reduce 2022 annual revenue by $11.0 million.

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. Cal Water has incurred $1.2 million of cumulative DRMA related costs, of which $0.6 million was incurred in the first six months of 2022.

The California State Governor has issued a drought declaration for all California counties through five State of Emergency Proclamations with the most recent on October 19, 2021. Given these drought proclamations and current water usage levels in all of its service areas, Cal Water has activated Stage 2 of the “Water Use Restrictions of its Water Shortage Contingency Plan” of Schedule 14.1 in all of its service areas.

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

26

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.

Escalation Increase Requests

As part of the decision on the 2018 GRC, Cal Water was authorized to request annual escalation rate increases for 2022 for those districts that passed the earnings test. In November of 2021, Cal Water requested escalation rate increases for 2022 in 19 of its regulated districts. The increase in annual adopted gross revenue associated with the November 2021 filing was $21.7 million. The new rates were implemented on January 1, 2022.

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 2021, Cal Water submitted an advice letter to request offsets for increases in purchased water costs and pump taxes in seven of its regulated districts totaling $5.2 million. The new rates were implemented on January 1, 2022.

In June of 2022, Cal Water submitted an advice letter to request offsets for increases in purchased water costs and pump taxes in four of its regulated districts totaling $12.7 million. The new rates will be implemented on August 1, 2022.

Rate Base Offset Requests

For construction projects authorized in GRCs as advice letter projects, Cal Water is allowed to request rate base offsets to increase revenues after the project goes into service. In November of 2021, Cal Water submitted an advice letter to recover $0.2 million of annual revenue increase for a rate base offset in one of its regulated districts. The new rates were implemented on January 1, 2022.

In March of 2022, Cal Water submitted an advice letter to recover $0.1 million of annual revenue increase for a rate base offset in one of its regulated districts. The new rates were implemented on April 15, 2022.

WRAM/MCBA Filings

In April of 2022, Cal Water submitted an advice letter to true up the revenue under-collections for the 2021 annual WRAMs/MCBAs of its regulated districts. A net under-collection of $54.1 million is being recovered/refunded from/to customers in the form of 12, 18, and greater-than-18-month surcharges and 12 month surcredits. The new rates incorporate net WRAM/MCBA balances that were previously approved for recovery and were implemented on April 15, 2022.

Regulatory Activity - Other States

Kona Water Service Company GRC (Hawaii Water)

In May of 2021, Hawaii Water submitted a private letter ruling (PLR) to the IRS requesting a ruling on the treatment of deferred taxes because of the TCJA. A favorable decision on the PLR was received on November 18, 2021. The Consumer Advocates and Hawaii Water submitted a joint stipulation to the Hawaii Public Utility Commission (HPUC) incorporating the PLR into revised water rates on March 2, 2022. Hawaii Water is awaiting approval from the HPUC.

HOH Utilities Company (Hawaii Water)

In June of 2021, Hawaii Water signed an agreement to acquire the assets of HOH Utilities Company, a wastewater utility located in the growing Poipu/Koloa area of Kauai County on the island of Kauai. The acquisition is subject to satisfaction of customary closing conditions, including approval by the HPUC.

Hawaii Water is expected to own and manage the wastewater utility, which currently serves almost 1,800 residential, commercial, and resort customers in Poipu and Koloa, including three hotels, condominiums, multi-family housing, a golf course, and single-family homes.

Hawaii Water received HPUC approval for the acquisition in June of 2022.

Kalaeloa Water Company GRC (Hawaii Water)

In August of 2021, a GRC application requesting an increase of revenues for Kalaeloa was submitted with the HPUC. In June of 2022, Hawaii Water and the Consumer Advocate submitted a full settlement agreement to the HPUC for approval. A decision is expected in the third quarter of 2022.

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Animas Valley Land and Water Co., LLC (New Mexico Water)

In October of 2020, New Mexico Water signed a purchase agreement with Animas Valley Land and Water Co., LLC (AV Water) and court-appointed receiver C. Randel Lewis to acquire the Morning Star Water System assets of AV Water and provide regulated water utility service to its approximately 2,000 customer connections in northwest New Mexico.

In April of 2022, New Mexico Water closed its purchase of the Morningstar Water system. The New Mexico Public Regulation Commission granted approval of the transaction, and the utility commenced operation of the water system as of April 14, 2022.

LIQUIDITY

Cash flow from Operations

Cash flow from operations for the first six months of 2022 was $89.9 million compared to $67.7 million for the same period in 2021. The increase in the first six months of 2022 as compared to 2021 was primarily due to receipt of $20.8 million from the Water Arrearages Payment Program. 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 six months of 2022, we made contributions of $8.8 million to our employee pension plan compared to contributions of $14.1 million during the first six months of 2021. During the first six months of 2022, we made contributions of $0.3 million to the other postretirement benefit plans compared to contributions of $1.5 million during the first six months of 2021. The full-year 2022 estimated cash contribution to the pension plans and other postretirement benefits plans are expected to be approximately $16.1 million and $0.7 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 unsecured revolving credit 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. Aged accounts receivable past due more than 60 days decreased from $26.2 million as of December 31, 2021 to $20.6 million as of June 30, 2022 mostly due to the application of $16.9 million of Water Arrearages Payment Program funds.

Investing Activities

During the first six months of 2022 and 2021, we used $144.6 million and $138.5 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 2022, 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.

Financing Activities

Net cash provided by financing activities was $44.6 million during the first six months of 2022 compared to $98.7 million of net cash provided by financing activities for the same period in 2021. For 2022, this includes our issuance of $30.2 million of Company common stock through our at-the-market equity program and $1.1 million through our employee stock purchase plan. For 2021, this includes our issuance of $280.0 million of First Mortgage Bonds, $61.6 million of Company common stock through our at-the-market equity program, and $1.0 million through our employee stock purchase plan.

During the first six months of 2022 and 2021, we borrowed $55.0 million and $125.0 million, respectively, on our unsecured revolving credit facilities. We made a repayment on our unsecured revolving credit facilities of $20.0 million and $350.0 million during the first six months of 2022 and 2021, respectively.

The net WRAM and MCBA receivable balances were $77.4 million and $67.5 million as of June 30, 2022 and 2021, 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.

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Short-Term and Long-Term Financing

During the first six months of 2022, we utilized cash generated from operations, borrowings on the 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 debt and equity.

Short-term liquidity is provided by our unsecured revolving credit 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 $150.0 million under the Company’s revolving credit facility. Cal Water may borrow up to $400.0 million under its revolving credit facility; however, all borrowings must be repaid within 24 months unless a different period is required or authorized by the CPUC. The proceeds from the unsecured revolving credit facilities may be used for working capital purposes.

As of June 30, 2022 and December 31, 2021, there were short-term borrowings of $70.0 million and $35.0 million, respectively, outstanding on the unsecured revolving credit 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.

Both short-term credit agreements 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, these unsecured credit agreements 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 June 30, 2022, we are in compliance with all of the covenant requirements and are eligible to use the full amount of the undrawn portion of our unsecured revolving credit 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.

Equity Issuance

On April 29, 2022, we entered into an equity distribution agreement to sell shares of our 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. We intend 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.

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.

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Summarized Statement of Operations
(in thousands)	Six Months Ended June 30, 2022				Twelve Months Ended December 31, 2021
	Issuer		Guarantor		Issuer		Guarantor
Net sales	$	347,574	$	—	$	727,149	$	—
Gross profit	$	222,967	$	—	$	462,301	$	—
Income from operations	$	37,532	$	53	$	121,231	$	181
Equity in earnings of guarantor	$	—	$	19,403	$	—	$	99,912
Net income	$	20,765	$	20,109	$	94,313	$	100,979

Summarized Balance Sheet Information
(in thousands)	As of June 30, 2022				As of December 31, 2021
	Issuer		Guarantor		Issuer		Guarantor
Current assets	$	239,364	$	6,260	$	251,573	$	20,077
Intercompany receivable from Non-guarantors	$	1,959	$	39,707	$	3,810	$	31,449
Other assets	$	426,322	$	1,016,931	$	431,137	$	991,173
Long-term intercompany receivable from Non-issuers	$	—	$	33,391	$	—	$	34,216
Net utility plant	$	2,696,912	$	—	$	2,625,092	$	24
Total assets	$	3,364,557	$	1,096,289	$	3,311,612	$	1,076,939
Current liabilities	$	232,473	$	40,115	$	211,915	$	35,019
Intercompany payable to Non-guarantors and Guarantor	$	2,653	$	—	$	361	$	—
Long-term debt	$	1,053,612	$	—	$	1,055,538	$	—
Other liabilities	$	1,053,818	$	2,420	$	1,046,647	$	2,146
Total Liabilities	$	2,342,556	$	42,535	$	2,314,461	$	37,165

Dividends

During the first six months of 2022, our quarterly common stock dividend payments were $0.5000 per share compared to $0.4600 per share during the first six months of 2021. For the full year 2021, the payout ratio was 46.9% of net income. On a long-term basis, our goal is to achieve a dividend payout ratio of 60% of net income accomplished through future earnings growth.

At the July 27, 2022 meeting, the Company's Board of Directors declared the third quarter dividend of $0.2500 per share payable on August 19, 2022, to stockholders of record on August 8, 2022. This was our 310th consecutive quarterly dividend.

2022 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 $150.0 million and $400.0 million, respectively, for short-term borrowings. As of June 30, 2022, the Company’s and Cal Water’s availability on these unsecured revolving lines of credit was $110.0 million and $370.0 million, respectively.

Book Value and Stockholders of Record

Book value per common share was $22.12 at June 30, 2022 compared to $21.92 at December 31, 2021. There were approximately 1,905 stockholders of record for our common stock as of May 9, 2022. 

Utility Plant Expenditures

During the first six months of 2022, utility plant expenditures totaled $144.6 million for Company-funded and developer-funded projects. For 2022, 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.

30

As of June 30, 2022, construction work in progress was $257.2 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 5.4 billion gallons or 10.3% 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 32.1 billion gallons or 61.1% of our total annual water supply pumped from wells. Our annual groundwater extraction from unmanaged groundwater basins approximates 15.0 billion gallons or 28.6% 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 $3.8 million and $3.6 million for the three months ended June 30, 2022 and 2021, respectively. For the six months ended June 30, 2022 and 2021, our well pump taxes were $8.2 million and $7.2 million, respectively. In 2014, the State of California enacted the Sustainable Groundwater Management Act of 2014. The law and its implementing regulations require most basins to select a sustainability agency by 2017, develop a sustainability plan by 2022, and show progress toward sustainability by 2027. We expect that after the 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. 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 June 13, 2022, the State of California snowpack water content during the 2022-2023 water year is 16% 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 0% of long-term averages. Management believes that, notwithstanding lower-than-average snowpack water content, supply pumped from underground aquifers and purchased from wholesale suppliers will be adequate to meet customer demand during 2022 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.

On May 31, 2018, California's Governor signed two bills (Assembly Bill 1668 and Senate Bill 606) into law that will 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 target by November 1, 2023 and each November 1 thereafter, that compares actual urban water use to the target. Management believes that Cal Water is well positioned to comply with all such regulations.

CONTRACTUAL OBLIGATIONS

During the six months ended June 30, 2022, there were no material changes in contractual obligations outside the normal course of business.

31

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 June 30, 2022. Based on that evaluation, we concluded that our disclosure controls and procedures were effective at the reasonable assurance level.

(b) Changes to Internal Control over Financial Reporting

There was no change in our internal controls over financial reporting that occurred during the quarter ended June 30, 2022, that has materially affected, or is reasonably likely to materially affect, our internal controls 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

32

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, 2021 filed with the SEC on February 24, 2022.

Item 6.

EXHIBITS

Exhibit	Description
1.1	Equity Distribution Agreement, dated as of April 29, 2022, between California Water Service Group and Morgan Stanley & Co. LLC, Robert W. Baird & Co. Incorporated, Blaylock Van, LLC, Wells Fargo Securities, LLC, Janney Montgomery Scott LLC and Samuel A. Ramirez & Company, Inc. (incorporated by reference to the Company’s Form 8-K filed April 29, 2022)
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
3.4	Amended and Restated Bylaws of California Water Service Group (Exhibit 3.1 to the Current Report on Form 8-K filed September 29, 2021)
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.
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)

33

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
July 28, 2022	By:	/s/ Thomas F. Smegal III
		Thomas F. Smegal III
		Vice President,
		Chief Financial Officer and Treasurer
		(Principal Financial Officer)

34

EX-3.3

Exhibit 3.3

CERTIFICATE OF AMENDMENT

TO

AMENDED CERTIFICATE OF INCORPORATION

OF CALIFORNIA WATER SERVICE GROUP

California Water Service Group, a corporation organized and existing under the General Corporation Law of the State of Delaware, does hereby certify:

1.The name of the Corporation is: “California Water Service Group”

2.The Certificate of Incorporation, as amended June 8, 2011 (the “Amended Certificate”), is hereby amended as follows:

3.Article FOURTH of the Amended Certificate is hereby amended in its entirety to read as follows:

FOURTH: The aggregate number of shares of all classes of stock which the corporation shall have authority to issue shall be 136,241,000, of which 136,000,000 shares shall be common shares, par value $0.01 per share, and 241,000 shares shall be preferred shares. The par value of the preferred shares shall be $0.01 per share.

The preferred shares may be issued from time to time in one or more series as noted above, the number of shares constituting each such series to be determined by the board of directors of the corporation pursuant to the authority contained in this certificate. The preferred shares may, at the election of the board of directors, be issued in fractional shares if required in connection with any stock split or otherwise. All of said 136,000,000 common shares shall be of one and the same series, namely common shares with par value of  $0.01 per share.”

4.All other provisions of the Amended Certificate shall remain in full force and effect.

5.The amendment of the Amended Certificate herein certified has been duly adopted in accordance with the provisions of Sections 228 and 242 of the General Corporation Law of the State of Delaware.

IN WITNESS WHEREOF, the Corporation has caused this Certificate of Amendment to be executed by the undersigned authorized officer, as of this 25th day of July, 2022.

CALIFORNIA WATER SERVICE GROUP
By:	/s/ Martin A. Kropelnicki
	MARTIN A. KROPELNICKI
	President and Chief Executive Officer

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 June 30, 2022, 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: July 28, 2022	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 June 30, 2022, 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: July 28, 2022	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 June 30, 2022 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: July 28, 2022	By:	/s/ Martin A. Kropelnicki
		MARTIN A. KROPELNICKI
		President and Chief Executive Officer
		California Water Service Group
Date: July 28, 2022	By:	/s/ Thomas F. Smegal III
		THOMAS F. SMEGAL III
		Vice President, Chief Financial Officer and Treasurer
		California Water Service Group

XML

Cover shares in Thousands	6 Months Ended
	Jun. 30, 2022 shares
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2022
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	54,356
Entity Central Index Key	0001035201
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q2

XML

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Utility plant:
Utility plant	$ 4,341,433	$ 4,197,344
Less accumulated depreciation and amortization	(1,406,757)	(1,350,482)
Net utility plant	2,934,676	2,846,862
Current assets:
Cash and cash equivalents	61,749	78,380
Receivables:
Customers, net	68,404	60,785
Regulatory balancing accounts	56,625	78,597
Other, net	19,803	18,452
Unbilled revenue, net	38,796	32,760
Materials and supplies at weighted average cost	10,567	9,511
Taxes, prepaid expenses, and other assets	20,708	21,973
Total current assets	276,652	300,458
Other assets:
Regulatory assets	287,625	285,692
Goodwill	36,814	36,814
Other assets	146,985	153,445
Total other assets	471,424	475,951
TOTAL ASSETS	3,682,752	3,623,271
Capitalization:
Common stock, $0.01 par value; 68,000 shares authorized, 54,356 and 53,716 outstanding in 2022 and 2021, respectively	544	537
Additional paid-in capital	682,353	651,121
Retained earnings	519,625	525,936
Noncontrolling interests	4,784	5,386
Total equity	1,207,306	1,182,980
Long-term debt, net	1,054,170	1,055,794
Total capitalization	2,261,476	2,238,774
Current liabilities:
Current maturities of long-term debt, net	5,783	5,192
Short-term borrowings	70,000	35,000
Accounts payable	139,732	144,369
Regulatory balancing accounts	9,627	17,547
Accrued interest	6,740	6,542
Accrued expenses and other liabilities	54,201	47,926
Total current liabilities	286,083	256,576
Deferred income taxes	300,489	298,945
Pension	94,796	92,287
Regulatory liabilities and other	254,109	252,938
Advances for construction	198,674	198,086
Contributions in aid of construction	287,125	285,665
Commitments and contingencies (Note 10)
TOTAL CAPITALIZATION AND LIABILITIES	$ 3,682,752	$ 3,623,271

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	68,000,000	68,000,000
Common stock, shares outstanding (in shares)	54,356,000	53,716,000

XML

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Operating revenue	$ 206,194	$ 213,123	$ 379,187	$ 360,860
Operations:
Water production costs	70,907	74,911	132,445	129,737
Administrative and general	32,686	31,756	66,097	62,125
Other operations	29,417	20,720	55,269	38,632
Maintenance	7,615	6,610	14,956	13,379
Depreciation and amortization	28,773	27,237	57,543	54,284
Income taxes	1,454	1,972	37	1,871
Property and other taxes	8,053	7,671	16,413	15,667
Total operating expenses	178,905	170,877	342,760	315,695
Net operating income	27,289	42,246	36,427	45,165
Other income and expenses:
Non-regulated revenue	7,002	5,374	12,199	10,946
Non-regulated expenses	(8,541)	(1,815)	(15,527)	(6,575)
Other components of net periodic benefit credit	3,765	2,688	7,779	5,667
Allowance for equity funds used during construction	1,042	848	2,017	1,392
Income tax expense on other income and expenses	(345)	(512)	(857)	(870)
Net other income	2,923	6,583	5,611	10,560
Interest expense:
Interest expense	11,586	11,206	23,081	21,428
Allowance for borrowed funds used during construction	(589)	(453)	(1,152)	(747)
Net interest expense	10,997	10,753	21,929	20,681
Net income	19,215	38,076	20,109	35,044
Net loss attributable to noncontrolling interests	(269)	(149)	(461)	(149)
Net income attributable to California Water Service Group	$ 19,484	$ 38,225	$ 20,570	$ 35,193
Earnings per share of common stock:
Basic (in dollars per share)	$ 0.36	$ 0.75	$ 0.38	$ 0.69
Diluted (in dollars per share)	$ 0.36	$ 0.75	$ 0.38	$ 0.69
Weighted average shares outstanding:
Basic (in shares)	54,007	51,080	53,870	50,762
Diluted (in shares)	54,042	51,080	53,918	50,762

XML

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Operating activities:
Net income	$ 20,109	$ 35,044
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	58,932	55,733
Change in value of life insurance contracts	7,169	(2,275)
Allowance for equity funds used during construction	(2,017)	(1,392)
Changes in operating assets and liabilities:
Receivables and unbilled revenue	(31,513)	(23,187)
Water Arrearages Payment Program	20,836	0
Accounts payable	(11,116)	(4,859)
Other current assets	418	(2,581)
Other current liabilities	316	3,075
Other changes in noncurrent assets and liabilities	26,776	8,092
Net cash provided by operating activities	89,910	67,650
Investing activities:
Utility plant expenditures	(144,588)	(138,522)
Life insurance proceeds	6,688	0
Purchase of life insurance contracts	(6,688)	0
Business acquisition, net of cash acquired	0	(6,451)
Asset acquisition	6,319	0
Return of investment	0	1,000
Net cash used in investing activities	(150,907)	(143,973)
Financing activities:
Short-term borrowings	55,000	125,000
Repayment of short-term borrowings	(20,000)	(350,000)
Issuance of long-term debt, net of debt issuance costs of $0 for 2022 and $1,064 for 2021	0	278,936
Repayment of long-term debt	(1,313)	(1,272)
Advances and contributions in aid of construction	13,142	13,953
Refunds of advances for construction	(4,508)	(5,722)
Repurchase of common stock	(1,786)	(1,524)
Issuance of common stock	31,268	62,603
Dividends paid	(26,881)	(23,283)
Distribution to noncontrolling interest	(348)	0
Net cash provided by financing activities	44,574	98,691
Change in cash, cash equivalents, and restricted cash	(16,423)	22,368
Cash, cash equivalents, and restricted cash at beginning of period	80,653	45,129
Cash, cash equivalents, and restricted cash at end of period	64,230	67,497
Supplemental information:
Cash paid for interest (net of amounts capitalized)	18,618	19,554
Supplemental disclosure of non-cash activities:
Accrued payables for investments in utility plant	56,522	53,325
Utility plant contribution by developers	$ 9,866	$ 13,563

XML

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Statement of Cash Flows [Abstract]
Payments of debt issuance costs	$ 0	$ 1,064

XML

Organization and Operations and Basis of Presentation

6 Months Ended

Jun. 30, 2022

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 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 and includes the Company's accounts and those of its wholly and non-wholly owned subsidiaries. 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, 2021 as filed with the SEC on February 24, 2022.

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 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 15% 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 15% 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 income or 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 income attributable to California Water Service Group excludes a net loss attributable to the noncontrolling interests.

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Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2022

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

Operating revenue

The following tables disaggregate the Company’s operating revenue by source for the three and six months ended June 30, 2022 and 2021:

	Three Months Ended June 30
	2022		2021
Revenue from contracts with customers	$	198,660	$	212,457
Regulatory balancing account revenue	7,534		666
Total operating revenue	$	206,194	$	213,123

	Six Months Ended June 30
	2022		2021
Revenue from contracts with customers	$	357,592	$	358,985
Regulatory balancing account revenue	21,595		1,875
Total operating revenue	$	379,187	$	360,860

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 a 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 tables, revenue from contracts with customers is disaggregated by class of customers for the three and six months ended June 30, 2022 and 2021:

	Three Months Ended June 30
	2022		2021
Residential	$	132,831	$	134,971
Business	39,278		35,730
Industrial	6,314		6,019
Public authorities	10,884		10,358
Other (a)	9,353		25,379
Total revenue from contracts with customers	$	198,660	$	212,457

	Six Months Ended June 30
	2022		2021
Residential	$	239,390	$	236,342
Business	71,441		63,452
Industrial	12,087		12,062
Public authorities	17,869		16,760
Other (a)	16,805		30,369
Total revenue from contracts with customers	$	357,592	$	358,985

(a) Other includes accrued unbilled revenue.

Regulatory balancing account revenue

The Company’s ability to recover revenue requirements authorized by the California Public Utilities Commission (CPUC) in its triennial general rate case (GRC) is decoupled from the volume of the sales. Regulatory balancing account revenue is revenue related to rate mechanisms authorized in California by the CPUC, which allow the Company to recover the authorized revenue and are not considered contracts with customers. These mechanisms include the following:

The Water Revenue Adjustment Mechanism (WRAM) allows the Company to recognize the adopted level of volumetric revenues. The variance between adopted volumetric revenues and actual billed volumetric revenues for metered accounts is recorded as regulatory balancing account revenue.

Cost-recovery rates, 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 are recorded as regulatory balancing account revenue.

Each district's WRAM and MCBA regulatory assets and liabilities are allowed to be netted against one another. The Company recognizes regulatory balancing account revenues that have been authorized for rate recovery, are objectively determinable and probable of recovery, and are expected to be collected within 24 months. To the extent that regulatory balancing account revenue is estimated to be collectible beyond 24 months, recognition is deferred.

The CPUC issued a decision effective August 27, 2020 requiring that Class A companies submitting GRC filings after the effective date to 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). Incremental Cost Balancing Accounts (ICBA), which are authorized by statute, would 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 would have 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 has complied with this decision in its recent 2021 GRC filing.

Non-regulated Revenue

The following tables disaggregate the Company’s non-regulated revenue by source for the three and six months ended June 30, 2022 and 2021:

	Three Months Ended June 30
	2022		2021
Operating and maintenance revenue	$	3,233	$	3,925
Other non-regulated revenue	3,081		796
Non-regulated revenue from contracts with customers	6,314		4,721
Lease revenue	688		653
Total non-regulated revenue	$	7,002	$	5,374

	Six Months Ended June 30
	2022		2021
Operating and maintenance revenue	$	6,638	$	8,013
Other non-regulated revenue	4,231		1,655
Non-regulated revenue from contracts with customers	10,869		9,668
Lease revenue	1,330		1,278
Total non-regulated revenue	$	12,199	$	10,946

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. During the first six months of 2022, the Company recorded a gain of $2.7 million related to company owned life insurance.

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 reviewed its allowance for credit losses utilizing a quantitative assessment, which included trend analysis of customer billing and collection, aging by customer class, and unemployment rates since the outbreak of COVID-19 in the first quarter of 2020. The Company also utilized a qualitative assessment, which considered 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 due to the outbreak of COVID-19. The Company has resumed the process

for shutoffs for non-payment in all of the Company's regulated utilities. The Company received and applied funds to customer accounts from the California Water and Wastewater Arrearage Payment Program (Program). The Program was created by the California Legislature, is administered by the State Water Resources Control Board and provided relief to community water and wastewater systems for unpaid bills – arrearages – related to the COVID-19 pandemic. Based on the above assessments, the Company adjusted its allowance for credit losses accordingly.

The following table presents the activity in the allowance for credit losses for the 6-month period ended June 30, 2022 and 12-month period ended December 31, 2021:

Allowance for credit losses	June 30, 2022		December 31, 2021
Beginning balance	$	3,743	$	5,246
Provision for credit loss expense	4,043		1,088
Write-offs	(1,260)		(3,113)
Recoveries	180		522
Total ending allowance balance	$	6,706	$	3,743

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:

	June 30, 2022		December 31, 2021
Cash and cash equivalents	$	61,749	$	78,380
Restricted cash (included in "taxes, prepaid expenses and other assets")	2,481		2,273
Total cash, cash equivalents, and restricted cash shown in the statements of cash flows	$	64,230	$	80,653

Accounting Standards Issued But Not Yet Adopted

In October of 2021, the Financial Accounting Standards Board issued Accounting Standards Update (ASU) 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers. In a business combination, an acquirer generally recognizes assets acquired and liabilities assumed, including contract assets and contract liabilities, at their respective fair value on the acquisition date. ASU 2021-08 requires that in a business combination, an acquirer should recognize and measure contract assets acquired and contract liabilities assumed in a business combination in accordance with Topic 606, Revenue from Contracts with Customers. The guidance provides certain practical expedients for acquirers when recognizing and measuring acquired contract assets and contract liabilities from revenue contracts with customers in a business combination. The guidance is effective for annual reporting periods beginning after December 15, 2022, including interim periods within those fiscal years. ASU 2021-08 should be applied prospectively for acquisitions occurring on or after the effective date of the amendments, and early adoption is permitted. The Company does not expect that the guidance will have a material impact on the Company's financial statements and footnote disclosures upon adoption.

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Stock-based Compensation

6 Months Ended

Jun. 30, 2022

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 six months of 2022, the Company granted Restricted Stock Awards (RSAs) to Officers and to members of the Board of Directors. An RSA share represents 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 June 30, 2022, there was approximately $2.9 million of total unrecognized compensation cost related to RSAs. The cost is expected to be recognized over a weighted average period of 1.8 years.

A summary of the status of the outstanding RSAs as of June 30, 2022 is presented below:

	Number of RSA Shares	Weighted-Average Grant-Date Fair Value
RSAs at January 1, 2022	62,691	$	53.49
Granted	42,057	56.42
Vested	(43,219)	53.63
RSAs at June 30, 2022	61,529	$	55.40

During the first six months of 2022, 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 2022 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, budgeted investment in utility plant, customer service standards, employee safety standards and water quality standards. 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 earned during the performance period. As of June 30, 2022, there was approximately $3.1 million of total unrecognized compensation cost related to RSUs. The cost is expected to be recognized over a weighted average period of 1.7 years.

A summary of the status of the outstanding RSUs as of June 30, 2022 is presented below:

	Number of RSU Shares	Weighted-Average Grant-Date Fair Value
RSUs at January 1, 2022	90,942	$	52.71
Granted	35,911	56.42
Performance criteria adjustment	12,173	58.63
Vested	(32,913)	58.63
Forfeited	(5,733)	52.83
RSUs at June 30, 2022	100,380	$	54.01

The Company has recorded compensation costs for the RSAs and RSUs that are included in administrative and general operating expenses in the amount of $1.5 million and $1.4 million for the three months ended June 30, 2022 and 2021, respectively. For the six months ended June 30, 2022 and 2021, the Company has recorded compensation costs for the RSAs and RSUs in the amount of $2.0 million and $2.7 million, respectively.

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Equity

6 Months Ended

Jun. 30, 2022

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 574,634 shares of common stock through its at-the-market equity program and raised proceeds of $30.2 million net of $0.3 million in commissions paid under the equity distribution agreement during the second quarter of 2022. The Company also incurred $0.1 million of equity issuance costs during the second quarter of 2022.

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

The Company’s changes in total equity for the six months ended June 30, 2022 and 2021 were as follows:

	Six months ended June 30, 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	$	525,936	$	5,386	$	1,182,980
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		513,593		5,248		1,169,878
Net income (loss)						19,484		(269)		19,215
Issuance of common stock	585	6		32,118						32,124
Repurchase of common stock	(2)	—		(111)						(111)
Dividends paid on common stock ($0.2500 per share)						(13,452)				(13,452)
Investment in business with noncontrolling interest				(153)				153		—
Distribution to noncontrolling interest								(348)		$	(348)
Balance at June 30, 2022	54,356	544		682,353		519,625		4,784		1,207,306

	Six months ended June 30, 2021
	Common Stock			Additional Paid-in Capital		Retained Earnings		Noncontrolling Interests		Total Equity
	Shares	Amount
	(In thousands)
Balance at January 1, 2021	50,334	$	503	$	448,632	$	472,209	$	—	$	921,344
Net loss						(3,032)		—		(3,032)
Issuance of common stock	528	5		24,481						24,486
Repurchase of common stock	(27)	—		(1,415)						(1,415)
Dividends paid on common stock ($0.2300 per share)						(11,581)		—		(11,581)
Balance at March 31, 2021	50,835	508		471,698		457,596		—		929,802
Net income (loss)						38,225		(149)		38,076
Issuance of common stock	702	7		40,895						40,902
Repurchase of common stock	(2)	—		(109)						(109)
Dividends paid on common stock ($0.2300 per share)						(11,702)		—		(11,702)
Acquisition of business with noncontrolling interest				—		—		5,294		5,294
Balance at June 30, 2021	51,535	515		512,484		484,119		5,145		1,002,263

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Earnings Per Share of Common Stock

6 Months Ended

Jun. 30, 2022

Earnings Per Share [Abstract]

Earnings Per Share of Common Stock

Earnings Per Share of Common Stock

The computations of basic and diluted earnings per share of common stock are noted in the table below. Basic earnings per share of common stock is computed by dividing the net 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.

	Three Months Ended June 30
	2022		2021
	(In thousands, except per share data)
Net income	$	19,215	$	38,076
Net loss attributable to noncontrolling interests	$	(269)	$	(149)
Net income attributable to California Water Service Group	$	19,484	$	38,225
Weighted average common shares outstanding, basic	54,007		51,080
Weighted average common shares outstanding, dilutive	54,042		51,080
Earnings per share of common stock - basic	$	0.36	$	0.75
Earnings per share of common stock - diluted	$	0.36	$	0.75

	Six Months Ended June 30
	2022		2021
	(In thousands, except per share data)
Net income	$	20,109	$	35,044
Net loss attributable to noncontrolling interests	$	(461)	$	(149)
Net income attributable to California Water Service Group	$	20,570	$	35,193
Weighted average common shares outstanding, basic	53,870		50,762
Weighted average common shares outstanding, dilutive	53,918		50,762
Earnings per share of common stock - basic	$	0.38	$	0.69
Earnings per share of common stock - diluted	$	0.38	$	0.69

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Pension Plan and Other Postretirement Benefits

6 Months Ended

Jun. 30, 2022

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 $8.8 million and $14.1 million for the six months ended June 30, 2022 and 2021, respectively. Cash contributions made by the Company to the other postretirement benefit plans were $0.3 million and $1.5 million for the six months ended June 30, 2022 and 2021, respectively. The total 2022 estimated cash contribution to the pension plans and other postretirement benefits plans are expected to be approximately $16.1 million and $0.7 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 June 30
	Pension Plan				Other Benefits
	2022		2021		2022		2021
Service cost	$	9,235	$	9,010	$	1,683	$	1,611
Interest cost	6,329		5,319		1,008		805
Expected return on plan assets	(11,307)		(9,866)		(2,482)		(2,192)
Amortization of prior service cost	242		253		39		49
Recognized net actuarial loss	999		1,924		(228)		(110)
Net periodic benefit cost	$	5,498	$	6,640	$	20	$	163

	Six Months Ended June 30
	Pension Plan				Other Benefits
	2022		2021		2022		2021
Service cost	$	18,470	$	18,020	$	3,366	$	3,222
Interest cost	12,658		10,638		2,016		1,611
Expected return on plan assets	(22,614)		(19,732)		(4,964)		(4,383)
Amortization of prior service cost	484		506		78		97
Recognized net actuarial loss	1,998		3,848		(456)		(220)
Net periodic benefit cost	$	10,996	$	13,280	$	40	$	327

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.

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Short-term and Long-term Borrowings

6 Months Ended

Jun. 30, 2022

Debt Disclosure [Abstract]

Short-term and Long-term Borrowings

Short-term and Long-term Borrowings On May 11, 2021, Cal Water completed the sale and issuance of $280.0 million in aggregate principal amount of First Mortgage Bonds (the Bonds) in a private placement. The Bonds consist of $130.0 million of 2.87% bonds, series ZZZ, maturing May 11, 2051, and $150.0 million of 3.02% bonds, series 1, maturing May 11, 2061. Interest on the bonds will accrue semi-annually and be payable in arrears on May 11 and November 11 of each year, commencing on November 11, 2021. The Bonds will rank equally with all of Cal Water’s other First Mortgage Bonds and will be secured by liens on Cal Water’s properties, subject to certain exceptions and permitted liens. Cal Water used the net proceeds from the sale of the Bonds to refinance existing indebtedness and for general corporate purposes. The Bonds were not registered under the Securities Act of 1933 and may not be offered or sold in the United States absent registration or an applicable exemption from registration requirements.

On March 29, 2019, the Company and Cal Water entered into certain syndicated credit agreements, which provide for unsecured revolving credit facilities of up to an initial aggregate amount of $550.0 million for a term of five years. The Company and subsidiaries that it designates may borrow up to $150.0 million under the Company’s revolving credit facility. Cal Water may borrow up to $400.0 million under its revolving credit 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 revolving credit 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, these unsecured credit agreements contain financial covenants governing the Company and its subsidiaries' consolidated total capitalization ratio and interest coverage ratio.

The outstanding borrowings on the Company line of credit were $40.0 million and $35.0 million as of June 30, 2022 and December 31, 2021, respectively. There were $30.0 million and no borrowings on the Cal Water line of credit as of June 30, 2022 and December 31, 2021, respectively. The average borrowing rate for borrowings on the Company and Cal Water lines of credit during the six months ended June 30, 2022 was 1.35% compared to 0.99% for the same period last year.

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Income Taxes

6 Months Ended

Jun. 30, 2022

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 June 30
	2022		2021
Income tax expense	$	1,799	$	2,484

	Six Months Ended June 30
	2022	2021
Income tax expense	894	2,741

Income tax expense decreased $0.7 million to $1.8 million in the second quarter of 2022 mostly due to a reduction in net operating income.

Income tax expense decreased $1.8 million to $0.9 million in the six months of 2022 mostly due to a reduction in net operating income.

The Company’s effective tax rate was 11.5% before discrete items as of June 30, 2022 and 6.0% as of June 30, 2021. The increase in effective tax rate was primarily due to a decrease in TCJA refunds of excess deferred federal income taxes which was partially offset by an increase in state tax benefits from repairs.

The Company had unrecognized tax benefits of approximately $16.5 million and $14.2 million as of June 30, 2022 and 2021, respectively. Included in the balance of unrecognized tax benefits as of June 30, 2022 and 2021, is $4.2 million and $3.8 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.

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Regulatory Assets and Liabilities

6 Months Ended

Jun. 30, 2022

Regulated Operations [Abstract]

Regulatory Assets and Liabilities

Regulatory Assets and Liabilities

Regulatory assets and liabilities were comprised of the following as of June 30, 2022 and December 31, 2021:

	Recovery Period	June 30, 2022		December 31, 2021
Regulatory Assets
Pension and retiree group health	Indefinitely	$	17,278	$	17,607
Property-related temporary differences (tax benefits flowed through to customers)	Indefinitely	130,565		130,565
Other accrued benefits	Indefinitely	24,656		23,280
Net WRAM and MCBA long-term accounts receivable	1 - 2 years	37,581		29,789
Asset retirement obligations, net	Indefinitely	24,005		22,935
Interim rates memorandum account (IRMA) long-term accounts receivable	1 - 3 years	7,212		9,032
Tank coating	10 years	14,986		13,680
Recoverable property losses	Various	3,489		3,843
PCBA	1 year	20,040		21,500
Other components of net periodic benefit cost	Indefinitely	623		3,342
General district balancing account receivable	1 year	358		568
Customer assistance program (CAP) and Rate support fund (RSF) accounts receivable	1 year	3,262		5,991
Other regulatory assets	Various	3,570		3,560
Total Regulatory Assets		$	287,625	$	285,692
Regulatory Liabilities
Future tax benefits due to customers		$	134,378	$	135,027
Retiree group health		27,294		27,294
HCBA		12,713		9,687
CEBA		7,684		7,206
Net WRAM and MCBA long-term payable		479		143
Other regulatory liabilities		1,039		1,071
Total Regulatory Liabilities		$	183,587	$	180,428

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

The short-term regulatory assets were $56.6 million as of June 30, 2022 and $78.6 million as of December 31, 2021. The short-term regulatory assets as of June 30, 2022 and December 31, 2021 primarily consist of net WRAM and MCBA, IRMA, and PCBA receivables.

The short-term portions of regulatory liabilities were $9.6 million as of June 30, 2022 and $17.5 million as of December 31, 2021. The short-term regulatory liabilities as of June 30, 2022 primarily consist of TCJA liabilities. As of December 31, 2021, short-term regulatory liabilities primarily consist of TCJA and HCBA liabilities.

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2022

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, 2021. 

As of June 30, 2022, there were no significant changes in these commitments from December 31, 2021.

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 the shareholder, 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 June 30, 2022 and December 31, 2021, the Company recognized a liability of $6.3 million and $3.5 million, respectively, for known 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.

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Fair Value of Financial Assets and Liabilities

6 Months Ended

Jun. 30, 2022

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%.

	June 30, 2022
			Fair Value
	Cost		Level 1	Level 2		Level 3	Total
Long-term debt, including current maturities, net	$	1,059,953	—	$	1,093,248	—	$	1,093,248

	December 31, 2021
			Fair Value
	Cost		Level 1		Level 2		Level 3		Total
Long-term debt, including current maturities, net	$	1,060,986	$	—	$	1,338,831	$	—	$	1,338,831

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Subsequent Event	6 Months Ended
	Jun. 30, 2022
Subsequent Events [Abstract]
Subsequent Event	Subsequent EventAs approved by the Company's stockholders at the 2022 Annual Meeting, effective July 26, 2022, the aggregate number of common shares of stock which the corporation shall have authority to issue was increased from 68.0 million common shares to 136.0 million common shares. All of said 136.0 million common shares shall be of one and the same series, namely common shares with par value of  $0.01 per common share.

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Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2022

Accounting Policies [Abstract]

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 a 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 tables, revenue from contracts with customers is disaggregated by class of customers for the three and six months ended June 30, 2022 and 2021:

	Three Months Ended June 30
	2022		2021
Residential	$	132,831	$	134,971
Business	39,278		35,730
Industrial	6,314		6,019
Public authorities	10,884		10,358
Other (a)	9,353		25,379
Total revenue from contracts with customers	$	198,660	$	212,457

	Six Months Ended June 30
	2022		2021
Residential	$	239,390	$	236,342
Business	71,441		63,452
Industrial	12,087		12,062
Public authorities	17,869		16,760
Other (a)	16,805		30,369
Total revenue from contracts with customers	$	357,592	$	358,985

(a) Other includes accrued unbilled revenue.

Regulatory balancing account revenue

The Company’s ability to recover revenue requirements authorized by the California Public Utilities Commission (CPUC) in its triennial general rate case (GRC) is decoupled from the volume of the sales. Regulatory balancing account revenue is revenue related to rate mechanisms authorized in California by the CPUC, which allow the Company to recover the authorized revenue and are not considered contracts with customers. These mechanisms include the following:

The Water Revenue Adjustment Mechanism (WRAM) allows the Company to recognize the adopted level of volumetric revenues. The variance between adopted volumetric revenues and actual billed volumetric revenues for metered accounts is recorded as regulatory balancing account revenue.

Cost-recovery rates, 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 are recorded as regulatory balancing account revenue.

Each district's WRAM and MCBA regulatory assets and liabilities are allowed to be netted against one another. The Company recognizes regulatory balancing account revenues that have been authorized for rate recovery, are objectively determinable and probable of recovery, and are expected to be collected within 24 months. To the extent that regulatory balancing account revenue is estimated to be collectible beyond 24 months, recognition is deferred.

The CPUC issued a decision effective August 27, 2020 requiring that Class A companies submitting GRC filings after the effective date to 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). Incremental Cost Balancing Accounts (ICBA), which are authorized by statute, would 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 would have 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 has complied with this decision in its recent 2021 GRC filing.

Non-regulated Revenue

Non-regulated Revenue

The following tables disaggregate the Company’s non-regulated revenue by source for the three and six months ended June 30, 2022 and 2021:

	Three Months Ended June 30
	2022		2021
Operating and maintenance revenue	$	3,233	$	3,925
Other non-regulated revenue	3,081		796
Non-regulated revenue from contracts with customers	6,314		4,721
Lease revenue	688		653
Total non-regulated revenue	$	7,002	$	5,374

	Six Months Ended June 30
	2022		2021
Operating and maintenance revenue	$	6,638	$	8,013
Other non-regulated revenue	4,231		1,655
Non-regulated revenue from contracts with customers	10,869		9,668
Lease revenue	1,330		1,278
Total non-regulated revenue	$	12,199	$	10,946

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. During the first six months of 2022, the Company recorded a gain of $2.7 million related to company owned life insurance.

Revenue Recognition, Leases

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 reviewed its allowance for credit losses utilizing a quantitative assessment, which included trend analysis of customer billing and collection, aging by customer class, and unemployment rates since the outbreak of COVID-19 in the first quarter of 2020. The Company also utilized a qualitative assessment, which considered 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 due to the outbreak of COVID-19. The Company has resumed the process

for shutoffs for non-payment in all of the Company's regulated utilities. The Company received and applied funds to customer accounts from the California Water and Wastewater Arrearage Payment Program (Program). The Program was created by the California Legislature, is administered by the State Water Resources Control Board and provided relief to community water and wastewater systems for unpaid bills – arrearages – related to the COVID-19 pandemic.

Accounting Standards Issued But Not Yet Adopted

Accounting Standards Issued But Not Yet Adopted

In October of 2021, the Financial Accounting Standards Board issued Accounting Standards Update (ASU) 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers. In a business combination, an acquirer generally recognizes assets acquired and liabilities assumed, including contract assets and contract liabilities, at their respective fair value on the acquisition date. ASU 2021-08 requires that in a business combination, an acquirer should recognize and measure contract assets acquired and contract liabilities assumed in a business combination in accordance with Topic 606, Revenue from Contracts with Customers. The guidance provides certain practical expedients for acquirers when recognizing and measuring acquired contract assets and contract liabilities from revenue contracts with customers in a business combination. The guidance is effective for annual reporting periods beginning after December 15, 2022, including interim periods within those fiscal years. ASU 2021-08 should be applied prospectively for acquisitions occurring on or after the effective date of the amendments, and early adoption is permitted. The Company does not expect that the guidance will have a material impact on the Company's financial statements and footnote disclosures upon adoption.

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Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2022

Accounting Policies [Abstract]

Disaggregation of Revenue

The following tables disaggregate the Company’s operating revenue by source for the three and six months ended June 30, 2022 and 2021:

	Three Months Ended June 30
	2022		2021
Revenue from contracts with customers	$	198,660	$	212,457
Regulatory balancing account revenue	7,534		666
Total operating revenue	$	206,194	$	213,123

	Six Months Ended June 30
	2022		2021
Revenue from contracts with customers	$	357,592	$	358,985
Regulatory balancing account revenue	21,595		1,875
Total operating revenue	$	379,187	$	360,860

In the following tables, revenue from contracts with customers is disaggregated by class of customers for the three and six months ended June 30, 2022 and 2021:

	Three Months Ended June 30
	2022		2021
Residential	$	132,831	$	134,971
Business	39,278		35,730
Industrial	6,314		6,019
Public authorities	10,884		10,358
Other (a)	9,353		25,379
Total revenue from contracts with customers	$	198,660	$	212,457

	Six Months Ended June 30
	2022		2021
Residential	$	239,390	$	236,342
Business	71,441		63,452
Industrial	12,087		12,062
Public authorities	17,869		16,760
Other (a)	16,805		30,369
Total revenue from contracts with customers	$	357,592	$	358,985

(a) Other includes accrued unbilled revenue.

The following tables disaggregate the Company’s non-regulated revenue by source for the three and six months ended June 30, 2022 and 2021:

	Three Months Ended June 30
	2022		2021
Operating and maintenance revenue	$	3,233	$	3,925
Other non-regulated revenue	3,081		796
Non-regulated revenue from contracts with customers	6,314		4,721
Lease revenue	688		653
Total non-regulated revenue	$	7,002	$	5,374

	Six Months Ended June 30
	2022		2021
Operating and maintenance revenue	$	6,638	$	8,013
Other non-regulated revenue	4,231		1,655
Non-regulated revenue from contracts with customers	10,869		9,668
Lease revenue	1,330		1,278
Total non-regulated revenue	$	12,199	$	10,946

Financing Receivable, Allowance for Credit Loss

The following table presents the activity in the allowance for credit losses for the 6-month period ended June 30, 2022 and 12-month period ended December 31, 2021:

Allowance for credit losses	June 30, 2022		December 31, 2021
Beginning balance	$	3,743	$	5,246
Provision for credit loss expense	4,043		1,088
Write-offs	(1,260)		(3,113)
Recoveries	180		522
Total ending allowance balance	$	6,706	$	3,743

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:

	June 30, 2022		December 31, 2021
Cash and cash equivalents	$	61,749	$	78,380
Restricted cash (included in "taxes, prepaid expenses and other assets")	2,481		2,273
Total cash, cash equivalents, and restricted cash shown in the statements of cash flows	$	64,230	$	80,653

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Stock-based Compensation (Tables)

6 Months Ended

Jun. 30, 2022

Share-Based Payment Arrangement [Abstract]

Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity

A summary of the status of the outstanding RSAs as of June 30, 2022 is presented below:

	Number of RSA Shares	Weighted-Average Grant-Date Fair Value
RSAs at January 1, 2022	62,691	$	53.49
Granted	42,057	56.42
Vested	(43,219)	53.63
RSAs at June 30, 2022	61,529	$	55.40

A summary of the status of the outstanding RSUs as of June 30, 2022 is presented below:

	Number of RSU Shares	Weighted-Average Grant-Date Fair Value
RSUs at January 1, 2022	90,942	$	52.71
Granted	35,911	56.42
Performance criteria adjustment	12,173	58.63
Vested	(32,913)	58.63
Forfeited	(5,733)	52.83
RSUs at June 30, 2022	100,380	$	54.01

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Equity (Tables)

6 Months Ended

Jun. 30, 2022

Equity [Abstract]

Schedule of changes in total common stockholders' equity

The Company’s changes in total equity for the six months ended June 30, 2022 and 2021 were as follows:

	Six months ended June 30, 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	$	525,936	$	5,386	$	1,182,980
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		513,593		5,248		1,169,878
Net income (loss)						19,484		(269)		19,215
Issuance of common stock	585	6		32,118						32,124
Repurchase of common stock	(2)	—		(111)						(111)
Dividends paid on common stock ($0.2500 per share)						(13,452)				(13,452)
Investment in business with noncontrolling interest				(153)				153		—
Distribution to noncontrolling interest								(348)		$	(348)
Balance at June 30, 2022	54,356	544		682,353		519,625		4,784		1,207,306

	Six months ended June 30, 2021
	Common Stock			Additional Paid-in Capital		Retained Earnings		Noncontrolling Interests		Total Equity
	Shares	Amount
	(In thousands)
Balance at January 1, 2021	50,334	$	503	$	448,632	$	472,209	$	—	$	921,344
Net loss						(3,032)		—		(3,032)
Issuance of common stock	528	5		24,481						24,486
Repurchase of common stock	(27)	—		(1,415)						(1,415)
Dividends paid on common stock ($0.2300 per share)						(11,581)		—		(11,581)
Balance at March 31, 2021	50,835	508		471,698		457,596		—		929,802
Net income (loss)						38,225		(149)		38,076
Issuance of common stock	702	7		40,895						40,902
Repurchase of common stock	(2)	—		(109)						(109)
Dividends paid on common stock ($0.2300 per share)						(11,702)		—		(11,702)
Acquisition of business with noncontrolling interest				—		—		5,294		5,294
Balance at June 30, 2021	51,535	515		512,484		484,119		5,145		1,002,263

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Earnings Per Share of Common Stock (Tables)

6 Months Ended

Jun. 30, 2022

Earnings Per Share [Abstract]

Schedule basic and Diluted Earnings Per Share

The computations of basic and diluted earnings per share of common stock are noted in the table below. Basic earnings per share of common stock is computed by dividing the net 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.

	Three Months Ended June 30
	2022		2021
	(In thousands, except per share data)
Net income	$	19,215	$	38,076
Net loss attributable to noncontrolling interests	$	(269)	$	(149)
Net income attributable to California Water Service Group	$	19,484	$	38,225
Weighted average common shares outstanding, basic	54,007		51,080
Weighted average common shares outstanding, dilutive	54,042		51,080
Earnings per share of common stock - basic	$	0.36	$	0.75
Earnings per share of common stock - diluted	$	0.36	$	0.75

	Six Months Ended June 30
	2022		2021
	(In thousands, except per share data)
Net income	$	20,109	$	35,044
Net loss attributable to noncontrolling interests	$	(461)	$	(149)
Net income attributable to California Water Service Group	$	20,570	$	35,193
Weighted average common shares outstanding, basic	53,870		50,762
Weighted average common shares outstanding, dilutive	53,918		50,762
Earnings per share of common stock - basic	$	0.38	$	0.69
Earnings per share of common stock - diluted	$	0.38	$	0.69

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Pension Plan and Other Postretirement Benefits (Tables)

6 Months Ended

Jun. 30, 2022

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 June 30
	Pension Plan				Other Benefits
	2022		2021		2022		2021
Service cost	$	9,235	$	9,010	$	1,683	$	1,611
Interest cost	6,329		5,319		1,008		805
Expected return on plan assets	(11,307)		(9,866)		(2,482)		(2,192)
Amortization of prior service cost	242		253		39		49
Recognized net actuarial loss	999		1,924		(228)		(110)
Net periodic benefit cost	$	5,498	$	6,640	$	20	$	163

	Six Months Ended June 30
	Pension Plan				Other Benefits
	2022		2021		2022		2021
Service cost	$	18,470	$	18,020	$	3,366	$	3,222
Interest cost	12,658		10,638		2,016		1,611
Expected return on plan assets	(22,614)		(19,732)		(4,964)		(4,383)
Amortization of prior service cost	484		506		78		97
Recognized net actuarial loss	1,998		3,848		(456)		(220)
Net periodic benefit cost	$	10,996	$	13,280	$	40	$	327

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Income Taxes (Tables)

6 Months Ended

Jun. 30, 2022

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 June 30
	2022		2021
Income tax expense	$	1,799	$	2,484

	Six Months Ended June 30
	2022	2021
Income tax expense	894	2,741

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Regulatory Assets and Liabilities (Tables)

6 Months Ended

Jun. 30, 2022

Regulated Operations [Abstract]

Schedule of regulatory assets and liabilities

Regulatory assets and liabilities were comprised of the following as of June 30, 2022 and December 31, 2021:

	Recovery Period	June 30, 2022		December 31, 2021
Regulatory Assets
Pension and retiree group health	Indefinitely	$	17,278	$	17,607
Property-related temporary differences (tax benefits flowed through to customers)	Indefinitely	130,565		130,565
Other accrued benefits	Indefinitely	24,656		23,280
Net WRAM and MCBA long-term accounts receivable	1 - 2 years	37,581		29,789
Asset retirement obligations, net	Indefinitely	24,005		22,935
Interim rates memorandum account (IRMA) long-term accounts receivable	1 - 3 years	7,212		9,032
Tank coating	10 years	14,986		13,680
Recoverable property losses	Various	3,489		3,843
PCBA	1 year	20,040		21,500
Other components of net periodic benefit cost	Indefinitely	623		3,342
General district balancing account receivable	1 year	358		568
Customer assistance program (CAP) and Rate support fund (RSF) accounts receivable	1 year	3,262		5,991
Other regulatory assets	Various	3,570		3,560
Total Regulatory Assets		$	287,625	$	285,692
Regulatory Liabilities
Future tax benefits due to customers		$	134,378	$	135,027
Retiree group health		27,294		27,294
HCBA		12,713		9,687
CEBA		7,684		7,206
Net WRAM and MCBA long-term payable		479		143
Other regulatory liabilities		1,039		1,071
Total Regulatory Liabilities		$	183,587	$	180,428

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Fair Value of Financial Assets and Liabilities (Tables)

6 Months Ended

Jun. 30, 2022

Fair Value Disclosures [Abstract]

Schedule of fair value of long-term debt, including current maturities and advances for construction

	June 30, 2022
			Fair Value
	Cost		Level 1	Level 2		Level 3	Total
Long-term debt, including current maturities, net	$	1,059,953	—	$	1,093,248	—	$	1,093,248

	December 31, 2021
			Fair Value
	Cost		Level 1		Level 2		Level 3		Total
Long-term debt, including current maturities, net	$	1,060,986	$	—	$	1,338,831	$	—	$	1,338,831

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Organization and Operations and Basis of Presentation (Details)	6 Months Ended
	Jun. 30, 2022 segment
Noncontrolling Interest [Line Items]
Number of reportable segments	1
BVRT Water Company
Noncontrolling Interest [Line Items]
Noncontrolling interest	15.00%

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Summary of Significant Accounting Policies - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 198,660	$ 212,457	$ 357,592	$ 358,985
Regulatory balancing account revenue	7,534	666	21,595	1,875
Operating revenue	206,194	213,123	379,187	360,860
Total non-regulated revenue	7,002	5,374	12,199	10,946
Residential
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	132,831	134,971	239,390	236,342
Business
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	39,278	35,730	71,441	63,452
Industrial
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	6,314	6,019	12,087	12,062
Public authorities
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	10,884	10,358	17,869	16,760
Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	9,353	25,379	16,805	30,369
Operating and maintenance revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	3,233	3,925	6,638	8,013
Other non-regulated revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	3,081	796	4,231	1,655
Non-regulated revenue from contracts with customers
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	6,314	4,721	10,869	9,668
Lease revenue	688	653	1,330	1,278
Total non-regulated revenue	$ 7,002	$ 5,374	12,199	$ 10,946
Insurance Programs
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers			$ 2,700

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Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 198,660	$ 212,457	$ 357,592	$ 358,985
Insurance Programs
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers			$ 2,700

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Summary of Significant Accounting Policies Allowance for credit losses (Details) - June 30, 2022 - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 3,743	$ 5,246
Provision for credit loss expense	4,043	1,088
Write-offs	(1,260)	(3,113)
Recoveries	180	522
Total ending allowance balance	$ 6,706	$ 3,743

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Summary of Significant Accounting Policies Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Cash and cash equivalents	$ 61,749	$ 78,380
Restricted cash (included in "taxes, prepaid expenses and other assets")	2,481	2,273
Total cash, cash equivalents, and restricted cash shown in the statements of cash flows	$ 64,230	$ 80,653	$ 67,497	$ 45,129

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Stock-based Compensation - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Stock-based Compensation
Shares authorized to be issued under the plan (in shares)	2,000,000		2,000,000
Recorded compensation costs for the RSAs and RSUs	$ 1.5	$ 1.4	$ 2.0	$ 2.7
RSAs
Stock-based Compensation
Period for recognition			1 year 9 months 18 days
Unrecognized compensation cost	2.9		$ 2.9
Performance-Based Restricted Stock Unit Awards (RSUs)
Stock-based Compensation
Period for recognition			1 year 8 months 12 days
Unrecognized compensation cost	$ 3.1		$ 3.1
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

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Stock-based Compensation - RSAs & Performance-Based RSUs (Details)	6 Months Ended
	Jun. 30, 2022 $ / shares shares
RSAs
Number of shares
Beginning balance (in shares) | shares	62,691
Granted (in shares) | shares	42,057
Vested (in shares) | shares	(43,219)
Ending balance (in shares) | shares	61,529
Weighted average price at grant
Beginning balance (in dollars per share) | $ / shares	$ 53.49
Granted (in dollars per share) | $ / shares	56.42
Vested (in dollars per share) | $ / shares	53.63
Ending balance (in dollars per share) | $ / shares	$ 55.40
RSUs
Number of shares
Beginning balance (in shares) | shares	90,942
Granted (in shares) | shares	35,911
Performance criteria adjustment (in shares) | shares	12,173
Vested (in shares) | shares	(32,913)
Forfeited (in shares) | shares	(5,733)
Ending balance (in shares) | shares	100,380
Weighted average price at grant
Beginning balance (in dollars per share) | $ / shares	$ 52.71
Granted (in dollars per share) | $ / shares	56.42
Performance criteria adjustment (in dollars per share) | $ / shares	58.63
Vested (in dollars per share) | $ / shares	58.63
Forfeited (in dollars per share) | $ / shares	52.83
Ending balance (in dollars per share) | $ / shares	$ 54.01

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Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended	6 Months Ended
	Apr. 29, 2022	Jun. 30, 2022	Jun. 30, 2022	Jun. 30, 2021	Jul. 26, 2022	Dec. 31, 2021
Class of Stock [Line Items]
Maximum consideration on transaction	$ 350,000
Sale of stock, agreement term	3 years
Sale of stock, number of shares issued in transaction (in shares)		574,634
Issuance of common stock		$ 30,200	$ 31,268	$ 62,603
Payments for commissions		300
Stock issuance costs		$ 100
Common stock, shares authorized (in shares)		68,000,000	68,000,000			68,000,000
Common stock, par value (in dollars per share)		$ 0.01	$ 0.01			$ 0.01
Subsequent Event
Class of Stock [Line Items]
Common stock, shares authorized (in shares)					136,000,000
Common stock, par value (in dollars per share)					$ 0.01

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Equity - Changes in Equity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	$ 1,169,878	$ 1,182,980	$ 929,802	$ 921,344	$ 1,182,980	$ 921,344
Net income (loss)	19,215	894	38,076	(3,032)	20,109	35,044
Issuance of common stock	32,124	1,107	40,902	24,486
Repurchase of common stock	(111)	(1,674)	(109)	(1,415)
Dividends paid on common stock ($0.2500 per share)	(13,452)	(13,429)	(11,702)	(11,581)
Investment in business with noncontrolling interest		0
Investment in business with noncontrolling interest	0		5,294
Distribution to noncontrolling interest	(348)
Balance at end of period	$ 1,207,306	$ 1,169,878	$ 1,002,263	$ 929,802	$ 1,207,306	$ 1,002,263
Dividends paid on common stock (in dollars per share)	$ 0.2500	$ 0.2500	$ 0.2300	$ 0.2300
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at the beginning of the period (in shares)	53,773	53,716	50,835	50,334	53,716	50,334
Balance at beginning of period	$ 538	$ 537	$ 508	$ 503	$ 537	$ 503
Issuance of common stock (in shares)	585	85	702	528
Issuance of common stock	$ 6	$ 1	$ 7	$ 5
Repurchase of common stock (in shares)	(2)	(28)	(2)	(27)
Balance at the ending of the period (in shares)	54,356	53,773	51,535	50,835	54,356	51,535
Balance at end of period	$ 544	$ 538	$ 515	$ 508	$ 544	$ 515
Additional Paid-in Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	650,499	651,121	471,698	448,632	651,121	448,632
Issuance of common stock	32,118	1,106	40,895	24,481
Repurchase of common stock	(111)	(1,674)	(109)	(1,415)
Investment in business with noncontrolling interest	(153)	(54)
Balance at end of period	682,353	650,499	512,484	471,698	682,353	512,484
Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	513,593	525,936	457,596	472,209	525,936	472,209
Net income (loss)	19,484	1,086	38,225	(3,032)
Dividends paid on common stock ($0.2500 per share)	(13,452)	(13,429)	(11,702)	(11,581)
Balance at end of period	519,625	513,593	484,119	457,596	519,625	484,119
Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	5,248	5,386	0	0	5,386	0
Net income (loss)	(269)	(192)	(149)	0
Investment in business with noncontrolling interest		54
Investment in business with noncontrolling interest	153		5,294
Distribution to noncontrolling interest	(348)
Balance at end of period	$ 4,784	$ 5,248	$ 5,145	$ 0	$ 4,784	$ 5,145

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Earnings Per Share of Common Stock (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share [Abstract]
Net income	$ 19,215	$ 894	$ 38,076	$ (3,032)	$ 20,109	$ 35,044
Net loss attributable to noncontrolling interests	(269)		(149)		(461)	(149)
Net income attributable to California Water Service Group	$ 19,484		$ 38,225		$ 20,570	$ 35,193
Weighted average common shares outstanding, basic (in shares)	54,007		51,080		53,870	50,762
Diluted (in shares)	54,042		51,080		53,918	50,762
Earnings per share of common stock - basic (in dollars per share)	$ 0.36		$ 0.75		$ 0.38	$ 0.69
Earnings per share of common stock - diluted (in dollars per share)	$ 0.36		$ 0.75		$ 0.38	$ 0.69

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Pension Plan and Other Postretirement Benefits (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Pension Plan
Pension Plan and Other Postretirement Benefits
Employer cash contributions			$ 8,800	$ 14,100
Estimated cash contributions in the current fiscal year	$ 16,100		16,100
Components of the pension plans and other postretirement benefits
Service cost	9,235	$ 9,010	18,470	18,020
Interest cost	6,329	5,319	12,658	10,638
Expected return on plan assets	(11,307)	(9,866)	(22,614)	(19,732)
Amortization of prior service cost	242	253	484	506
Recognized net actuarial loss	999	1,924	1,998	3,848
Net periodic benefit cost	5,498	6,640	10,996	13,280
Other Benefits
Pension Plan and Other Postretirement Benefits
Employer cash contributions			300	1,500
Estimated cash contributions in the current fiscal year	700		700
Components of the pension plans and other postretirement benefits
Service cost	1,683	1,611	3,366	3,222
Interest cost	1,008	805	2,016	1,611
Expected return on plan assets	(2,482)	(2,192)	(4,964)	(4,383)
Amortization of prior service cost	39	49	78	97
Recognized net actuarial loss	(228)	(110)	(456)	(220)
Net periodic benefit cost	$ 20	$ 163	$ 40	$ 327

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Short-term and Long-term Borrowings (Details) - USD ($)			6 Months Ended
	May 11, 2021	Mar. 29, 2019	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Cal Water
Debt Instrument [Line Items]
Outstanding borrowings			$ 30,000,000		$ 0
Parent Company
Debt Instrument [Line Items]
Outstanding borrowings			$ 40,000,000		$ 35,000,000
Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 550,000,000
Debt instrument, term		5 years
Average borrowing rate			1.35%	0.99%
Revolving Credit Facility | Cal Water
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 400,000,000
Incremental expansion of borrowing capacity		150,000,000
Revolving Credit Facility | Parent Company
Debt Instrument [Line Items]
Maximum borrowing capacity		150,000,000
Incremental expansion of borrowing capacity		$ 50,000,000
Secured Debt
Debt Instrument [Line Items]
Debt issued	$ 280,000,000
Secured Debt | Series ZZZ Mortgage Bonds
Debt Instrument [Line Items]
Debt issued	$ 130,000,000
Interest rate	2.87%
Secured Debt | Series 1 Mortgage Bonds
Debt Instrument [Line Items]
Debt issued	$ 150,000,000
Interest rate	3.02%

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Income Taxes - Provision for Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Tax Disclosure [Abstract]
Income tax expense	$ 1,799	$ 2,484	$ 894	$ 2,741

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Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Tax Disclosure [Abstract]
Income tax expense increase (decrease)	$ (700)		$ (1,800)
Income tax expense	1,799	$ 2,484	$ 894	$ 2,741
Effective tax rate estimate			11.50%	6.00%
Unrecognized tax benefits	16,500	14,200	$ 16,500	$ 14,200
Tax benefits that, if recognized, would affect the effective tax rate	$ 4,200	$ 3,800	$ 4,200	$ 3,800

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Regulatory Assets and Liabilities - Schedule of Regulatory Assets and Liabilities (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Regulatory Assets and Liabilities
Total Regulatory Assets	$ 287,625	$ 285,692
Total Regulatory Liabilities	183,587	180,428
Future tax benefits due to customers
Regulatory Assets and Liabilities
Total Regulatory Liabilities	134,378	135,027
Retiree group health
Regulatory Assets and Liabilities
Total Regulatory Liabilities	27,294	27,294
HCBA
Regulatory Assets and Liabilities
Total Regulatory Liabilities	12,713	9,687
CEBA
Regulatory Assets and Liabilities
Total Regulatory Liabilities	7,684	7,206
Net WRAM and MCBA long-term payable
Regulatory Assets and Liabilities
Total Regulatory Liabilities	479	143
Other regulatory liabilities
Regulatory Assets and Liabilities
Total Regulatory Liabilities	1,039	1,071
Pension and retiree group health
Regulatory Assets and Liabilities
Total Regulatory Assets	17,278	17,607
Future tax benefits due to customers
Regulatory Assets and Liabilities
Total Regulatory Assets	130,565	130,565
Other accrued benefits
Regulatory Assets and Liabilities
Total Regulatory Assets	24,656	23,280
Net WRAM and MCBA long-term accounts receivable
Regulatory Assets and Liabilities
Total Regulatory Assets	37,581	29,789
Asset retirement obligations, net
Regulatory Assets and Liabilities
Total Regulatory Assets	24,005	22,935
Interim rates memorandum account (IRMA) long-term accounts receivable
Regulatory Assets and Liabilities
Total Regulatory Assets	$ 7,212	9,032
Tank coating
Regulatory Assets and Liabilities
Recovery Period	10 years
Total Regulatory Assets	$ 14,986	13,680
Recoverable property losses
Regulatory Assets and Liabilities
Total Regulatory Assets	$ 3,489	3,843
PCBA
Regulatory Assets and Liabilities
Recovery Period	1 year
Total Regulatory Assets	$ 20,040	21,500
Other components of net periodic benefit cost
Regulatory Assets and Liabilities
Total Regulatory Assets	$ 623	3,342
General district balancing account receivable
Regulatory Assets and Liabilities
Recovery Period	1 year
Total Regulatory Assets	$ 358	568
Customer assistance program (CAP) and Rate support fund (RSF) accounts receivable
Regulatory Assets and Liabilities
Recovery Period	1 year
Total Regulatory Assets	$ 3,262	5,991
Other regulatory assets
Regulatory Assets and Liabilities
Total Regulatory Assets	$ 3,570	$ 3,560
Minimum | Net WRAM and MCBA long-term accounts receivable
Regulatory Assets and Liabilities
Recovery Period	1 year
Minimum | Interim rates memorandum account (IRMA) long-term accounts receivable
Regulatory Assets and Liabilities
Recovery Period	1 year
Maximum | Net WRAM and MCBA long-term accounts receivable
Regulatory Assets and Liabilities
Recovery Period	2 years
Maximum | Interim rates memorandum account (IRMA) long-term accounts receivable
Regulatory Assets and Liabilities
Recovery Period	3 years

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Regulatory Assets and Liabilities - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Regulated Operations [Abstract]
Short-term portion of the regulatory assets	$ 56,625	$ 78,597
Short-term portion of the regulatory liabilities	$ 9,627	$ 17,547

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Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Contingency loss recognized liability	$ 6.3	$ 3.5

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Fair Value of Financial Assets and Liabilities - Narrative (Details)	6 Months Ended
	Jun. 30, 2022
Fair Value Disclosures [Abstract]
Risk premium (as a percent)	0.60%

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Fair Value of Financial Assets and Liabilities - Schedule of Long Term Debt at Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Cost
Fair Value of Financial Assets and Liabilities
Long-term debt, including current maturities, net	$ 1,059,953	$ 1,060,986
Fair Value
Fair Value of Financial Assets and Liabilities
Long-term debt, including current maturities, net	1,093,248	1,338,831
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	1,093,248	1,338,831
Fair Value | Level 3
Fair Value of Financial Assets and Liabilities
Long-term debt, including current maturities, net	$ 0	$ 0

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Subsequent Event (Details) - $ / shares	Jul. 26, 2022	Jun. 30, 2022	Dec. 31, 2021
Subsequent Event [Line Items]
Common stock, shares authorized (in shares)		68,000,000	68,000,000
Common stock, par value (in dollars per share)		$ 0.01	$ 0.01
Subsequent Event
Subsequent Event [Line Items]
Common stock, shares authorized (in shares)	136,000,000
Common stock, par value (in dollars per share)	$ 0.01