CALIFORNIA WATER SERVICE GROUP

June 30, 2025

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) indirectly holds regulated and contracted wastewater utilities through a majority owned joint venture, BVRT Utility Holding Company (BVRT). BVRT’s wastewater utilities provide services under the rules and regulation of the Texas Public Utilities Commission.

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 refers to BVRT, a 95.9% owned subsidiary of Texas Water that is consolidated using the voting interest model as the Company owns a majority of voting interests in the non-wholly owned subsidiary. The interim unaudited condensed consolidated financial statements should be read in conjunction with the Company’s consolidated financial statements included in its Annual Report on Form 10-K for the year ended December 31, 2024 as filed with the SEC on February 27, 2025.

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 consolidated 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, utility plant useful lives, revenues earned but not yet billed, asset retirement obligations, allowance for credit losses, pension and other employee benefit plan liabilities, and income tax-related assets and liabilities. Actual results could materially differ from these estimates.

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

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

Noncontrolling Interest

Noncontrolling interest in the Company’s unaudited condensed consolidated financial statements represents the 4.1% interest not owned by Texas Water in BVRT. Texas Water obtained control over BVRT on May 1, 2021. Since the Company controls BVRT, its financial statements are consolidated with those of the Company, and the noncontrolling owner’s 4.1% share of BVRT’s net assets and results of operations is deducted and reported as noncontrolling interest in total equity on the unaudited Condensed Consolidated Balance Sheet, as net loss attributable to noncontrolling interest in the unaudited Condensed Consolidated Statements of Operations, and as comprehensive loss attributable to noncontrolling interest in the unaudited Condensed Consolidated Statements of Comprehensive Income. The Company reports noncontrolling interest in consolidated entities as a component of equity separate from the Company’s equity. The Company’s net income and comprehensive income attributable to California Water Service Group excludes the loss attributable to the noncontrolling interest.

Note 2. Summary of Significant Accounting Policies

Operating Revenue

The following table disaggregates the Company’s operating revenue by source for the three and six months ended June 30, 2025 and 2024:

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 and other third parties. 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 accrued and 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.

In the following table, revenue from contracts with customers is disaggregated by class of customers for the three and six months ended June 30, 2025 and 2024:

(a) Other includes changes to accrued and unbilled revenue

Regulatory balancing account revenue

Regulatory balancing account revenue is revenue related to revenue mechanisms authorized in California by the California Public Utilities Commission (CPUC). For certain revenue mechanisms, the Company recognizes revenue when it is objectively determinable, probable of recovery and expected to be collected within 24 months following the end of the accounting period. To the extent that revenue is estimated to be collectible beyond 24 months, recognition is deferred. These mechanisms include the Monterey-Style Water Revenue Adjustment Mechanism (MWRAM), which was approved in Cal Water’s 2021 General Rate Case (GRC) filing (2021 CA GRC) in March of 2024. The MWRAM tracks the difference between the revenue received for actual metered sales through the tiered volumetric rate and the revenue that would have been received with the same actual metered sales if a uniform rate had been in effect. The MWRAM fluctuates with the seasonality of the water business. During the warm, dry summer months when water use is typically highest, the MWRAM will reflect an overcollection of revenue compared to an undercollection in the cool, wet winter months when less water is typically used.

These mechanisms also include the Water Revenue Adjustment Mechanism (WRAM), which decoupled revenue from the volume of sales and allowed the Company to recognize the adopted level of volumetric revenues. The variance between adopted volumetric revenues and actual billed volumetric revenues for metered accounts is recorded as regulatory balancing account revenue. The WRAM concluded on December 31, 2022; however, the Company has a net WRAM receivable balance for which the Company continues to defer revenue recognition for amounts estimated to be collected beyond 24 months following the end of the accounting period.

Regulatory balancing accounts also include revenue that is recognized when it is probable that future recovery of previously incurred costs or future refunds that are to be credited to customers will occur through the ratemaking process. As a result of the delay in the approval of the 2021 CA GRC, the CPUC authorized Cal Water to track the effect of the delay on customer billings in an Interim Rates Memorandum Account (IRMA). Variances between actual customer billings and those that would have been billed assuming the 2021 CA GRC had been implemented on January 1, 2023 were recorded as regulatory balancing account revenue. The 2021 CA GRC was approved in March of 2024 and final authorized rates were implemented effective May 31, 2024; as a result, for the first six months of 2024, Cal Water calculated and recorded the IRMA for all of 2023 and the first five months of 2024. Cal Water determined that the IRMA met regulatory asset recognition criteria under accounting standards for regulated utilities.

Non-Regulated Revenue

The following table disaggregates the Company’s non-regulated revenue by source for the three and six months ended June 30, 2025 and 2024:

Contract 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 the Company provides operating, maintenance and customer billing services related to the customers’ water system. The formal agreements outline a 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 contract operating and maintenance services over time as services are rendered; as a result, the Company employs the invoice practical expedient and recognizes revenue in the amount that it has the right to invoice. Contract terms are generally short-term and, as a result, no separate financing component is recognized for its collections from customers, which generally require payment within 30 days of billing.

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

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

Allowance for Credit Losses

The Company measures expected credit losses for Customer Receivables, Other Receivables, and Accrued 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 Accrued 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 applicable accounting guidance. 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 use to encourage payment.

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

The following table presents the activity in the allowance for credit losses for the six months ended June 30, 2025 and twelve months ended December 31, 2024:

Cash, Cash Equivalents, and Restricted Cash

The following table provides a reconciliation of cash, cash equivalents, and restricted cash within the unaudited Condensed Consolidated Balance Sheets that sum to the total of the same such amounts shown on the unaudited Condensed Consolidated Statements of Cash Flows (see Note 9 for further details on restricted cash):

Earnings per Share

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. Diluted earnings per share reflects the potential dilution that could occur if securities or other contracts were exercised or converted into common stock. Restricted Stock Awards (RSAs) are included in the common shares outstanding because the shares all have the same voting and dividend rights as issued and unrestricted common stock.

New Accounting Standards

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures to expand the disclosure requirements for income taxes, specifically related to the rate reconciliation and paid income taxes. ASU 2023-09 is effective for the Company's annual periods beginning January 1, 2025, with early adoption permitted. The guidance is applied prospectively with the option of retrospective application for each period presented. The Company is evaluating the requirements of the guidance to determine the impact on its financial statement disclosures upon adoption and does not expect to adopt the standard early.

In November 2024, the FASB issued ASU 2024-03, Disaggregation of Income Statement Expenses, which requires disaggregation of certain Consolidated Statement of Operations’ expense captions into specified categories in disclosures within the footnotes to the financial statements. ASU 2024-03 is effective for the Company’s annual periods beginning January 1, 2027, with early adoption permitted. The guidance is applied prospectively with the option of retrospective application for each period presented. The Company is evaluating the requirements of the guidance to determine the impact on its financial statement disclosures upon adoption and does not expect to adopt the standard early.

Note 3. Stock-Based Compensation

The Company’s 2024 Equity Incentive Plan (2024 Equity Plan) was adopted by the Board of Directors and approved by stockholders on May 29, 2024. The Company reserved 1,600,000 shares of common stock for awards the Company is authorized to issue pursuant to the 2024 Equity Plan. In addition, the Board of Directors reauthorized 158,950 shares for issuance under its legacy equity incentive plan.

In March of 2025, the Company granted RSAs to Officers and members of the Board of Directors (Directors). Generally, an RSA represents the right to receive a 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. The 2025 RSAs granted to Officers vest over 36 months with the first 12 months cliff vesting and the remaining RSAs vesting quarterly thereafter. RSAs granted to the Directors in 2025 vest at the end of 12 months. The 2025 RSAs are recognized as expense evenly over 36 months for the shares granted to Officers and 12 months for the shares granted to the Directors. As of June 30, 2025, there was approximately $3.5 million of total unrecognized compensation cost related to RSAs. The cost is expected to be recognized over a weighted average period of 1.8 years.

A summary of the status of the outstanding RSAs as of June 30, 2025 is presented below:

In March of 2025, the Company granted performance-based Restricted Stock Units (RSUs) to Officers. Generally, an RSU represents the right to receive a share of the Company’s common stock. Each award reflects a target number of shares of common stock that may be issued to the award recipient. The 2025 RSU awards may be earned upon the completion of a 36-month 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 2025 performance objectives are based on the Company’s business plan covering the performance period. The two performance objectives for the 2025 to 2027 performance period include 1) achieving targets indicative of stockholder return and 2) achieving targets associated with PFAS investment in water monitoring and treatment as well as water contamination cost recovery. Depending on the results achieved during the 36-month 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 RSUs 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 36-month performance period using a fair market value of the Company’s common stock at the date of grant and an estimated number of RSUs earned during the performance period. As of June 30, 2025, there was approximately $5.7 million of total unrecognized compensation cost related to outstanding RSUs under the program. The cost is expected to be recognized over a weighted average period of 1.9 years.

A summary of the status of outstanding RSUs as of June 30, 2025 is presented below:

The Company has recorded compensation costs for the RSAs and RSUs that are included in administrative and general operating expenses in the amount of $1.3 million and $0.4 million for the three months ended June 30, 2025 and 2024, respectively. For the six months ended June 30, 2025 and 2024, the Company has recorded compensation costs for the RSAs and RSUs in the amount of $2.6 million and $1.1 million, respectively.

Note 4. Equity

On May 14, 2025, 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 (2025 Equity Agreement) from time to time, depending on market conditions, through an at-the-market equity program over the succeeding three years. The 2025 Equity Agreement replaced the previous agreement that ended in the second quarter of 2025. Pursuant to the terms of the 2025 Equity Agreement, the Company may enter into forward sale agreements with forward counterparties. The Company intends to use the net proceeds from equity sales, after deducting commissions and offering expenses, for general corporate purposes, which may include working capital, construction and acquisition expenditures, investments and repurchases, and redemptions of securities. During the six months ended June 30, 2025, the Company did not utilize the at-the-market equity program.

During the six months ended June 30, 2024, the Company sold 1,000,000 shares of common stock through its previous at-the-market equity program and raised proceeds of $52.0 million, net of $0.5 million in commissions paid under the equity distribution agreement.

The Company’s changes in total equity for the three and six months ended June 30, 2025 and 2024 were as follows:

(a) This accumulated other comprehensive loss component is included in the computation of net periodic costs for the Company’s supplemental executive retirement plan (SERP), specifically the following components: amortization of unrecognized (gain) loss and amortization of prior service credit.

Note 5. Pension Plan and Other Postretirement Benefits

The Company provides a qualified, defined-benefit, non-contributory pension plan for substantially all its employees. The Company makes annual contributions to fund amounts accrued for the qualified pension plan. The Company also maintains an unfunded, non-qualified SERP. 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 (other postretirement benefit plans). 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 $3.3 million and $0.2 million for the six months ended June 30, 2025 and 2024, respectively. No cash contributions were made by the Company to the other postretirement benefit plans for the six months ended June 30, 2025 and 2024, respectively. The Company estimates in 2025 that the annual contribution to the pension plans will be $5.2 million andno cash annual contribution will be made to the other postretirement plans.

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 SERP. The data listed under “other benefits” is for all other postretirement benefit plans.

The service cost portion of the pension plan and other postretirement benefit plans is recognized in administrative and general expenses within the unaudited 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 losses (gains) and are reported together as other components of net periodic benefit cost in other income and expenses within the unaudited Condensed Consolidated Statements of Operations.

Note 6. Short-term and Long-term Borrowings

On March 31, 2023, the Company and Cal Water entered into syndicated credit agreements, which provide for unsecured revolving credit facilities of up to an initial aggregate amount of $600.0 million for a term offive years. The Company and subsidiaries that it designates may borrow up to $200.0 million under the Company’s revolving credit facility (the Company facility). Cal Water may borrow up to $400.0 million under its revolving credit facility (the Cal Water facility). Additionally, the credit facilities may be increased by up to an incremental $150.0 million under the Cal Water facility and $50.0 million under the Company facility, subject in each case to certain conditions. At the Company’s or Cal Water’s option, as applicable, borrowings under the Company and Cal Water facilities, as applicable, will bear interest annually at a rate equal to (i) the base rate, plus an applicable margin of 0.00% to 0.25%, depending on the Company and its subsidiaries’ consolidated total capitalization ratio, or (ii) Term SOFR, plus an applicable margin of 0.80% to 1.25%, depending on the Company and its subsidiaries’ consolidated total capitalization ratio.

The Company and Cal Water facilities contain affirmative and negative covenants and events of default customary for credit facilities of this type including, among other things, limitations and prohibitions relating to additional indebtedness, liens, mergers, and asset sales. Also, the Company and Cal Water facilities contain financial covenants governing the Company and its subsidiaries’ consolidated total capitalization ratio and interest coverage ratio. As of June 30, 2025, the Company and Cal Water are in compliance with all of the covenant requirements and are eligible to use the full amount of the undrawn portion of the Company and Cal Water facilities, as applicable.

Outstanding borrowings on the Company line of credit as of June 30, 2025 and December 31, 2024 were $65.0 million and $40.0 million, respectively. Outstanding borrowings on the Cal Water line of credit as of June 30, 2025 and December 31, 2024 were $295.0 million and $165.0 million, respectively. The average borrowing rate for borrowings on the Company and Cal Water lines of credit during the six months ended June 30, 2025 was 5.33% compared to 6.38% for the same period last year.

Note 7. 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 table below:

Income tax expense decreased $1.3 million and $15.4 million for the three and six months ended June 30, 2025, as compared to the three and six months ended June 30, 2024. The decrease in income tax expense is primarily due to the decrease in pre-tax operating income, which resulted from the 2021 CA GRC decision in the first three months of 2024.

The Company’s effective tax rate was 17.1% and 19.6% before discrete items as of June 30, 2025 and June 30, 2024, respectively. The decrease in the effective tax rate was primarily due to the recognition of income related to the 2021 CA GRC decision in the first three months of 2024.

On July 4, 2025, the legislation formally titled “An Act to Provide for Reconciliation Pursuant to Title II of H. Con. Res. 14” (the Act) was signed into law. Aspects of the Act contain technical matters that require management to interpret the legislation and make judgments until further guidance becomes available. The Company is currently evaluating the impact of the Act, changes in interpretations, and guidance on legislative intent to the Company’s consolidated financial statements. As the legislation was signed into law after the close of the Company’s second quarter, the impacts, if any, are not included in the Company’s operating results for the six months ended June 30, 2025.

On June 27, 2024, California Senate Bill 167 (SB 167) was enacted into law. SB 167 provides for a three-year suspension of net operating losses under the California Corporation tax. Among other things, this new law temporarily disallows the use of state net operating losses for years beginning in 2024 through 2026.

The Company had unrecognized tax benefits of approximately $19.9 million and $17.0 million as of June 30, 2025 and 2024, respectively. Included in the balance of unrecognized tax benefits as of June 30, 2025 and 2024, is $5.6 million and $5.1 million, respectively, of tax benefits that, if recognized, would result in an increase to the Company’s effective tax rate. The Company does not expect its unrecognized tax benefits to change significantly within the next 12 months.

Note 8. Regulatory Assets and Liabilities

Regulatory assets and liabilities were comprised of the following as of June 30, 2025 and December 31, 2024:

Short-term regulatory assets and liabilities are excluded from the above table. The short-term regulatory assets were $63.2 million as of June 30, 2025 and $55.9 million as of December 31, 2024. The short-term regulatory assets as of June 30, 2025 primarily consisted of IRMA, MWRAM, and ICBA receivables. As of December 31, 2024, the short-term regulatory assets primarily consisted of IRMA and MWRAM receivables. The short-term regulatory assets are included in current assets under regulatory balancing accounts on the unaudited Condensed Consolidated Balance Sheets.

The short-term portion of regulatory liabilities was $17.6 million as of June 30, 2025 and $22.6 million as of December 31, 2024. The short-term regulatory liabilities as of June 30, 2025 consisted of Tax Cuts and Jobs Act (TCJA) regulatory liabilities, ICBA regulatory liabilities, PFAS settlement proceeds (see Note 9, Commitments and Contingencies), and IRMA regulatory liabilities. As of December 31, 2024, the short-term regulatory liabilities primarily consisted of TCJA regulatory liabilities, ICBA regulatory liabilities, and IRMA regulatory liabilities. The short-term regulatory liabilities are included in current liabilities under regulatory balancing accounts on the unaudited Condensed Consolidated Balance Sheets.

The PFAS settlement proceeds in the table above represents amounts the Company does not expect to reclassify to Contributions in Aid of Construction (CIAC) in the next 12 months. The Company is required by the Commissions to provide the benefit of the PFAS settlement proceeds to customers through CIAC once PFAS related remediation projects are placed in service. Since the Company is required to provide the benefit of the settlement proceeds to customers, the Company recorded the PFAS settlement proceeds as a regulatory liability and will reclassify them to CIAC once the related projects are placed in service.

Note 9. Commitments and Contingencies

Commitments

The Company has long-term 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, 2024.

On August 16, 2022, BVRT, a majority owned subsidiary of Texas Water, through BVRT’s wholly owned subsidiary, Camino Real Utility (Camino Real), entered into a long-term water supply agreement with the Guadalupe Blanco River Authority (GBRA). The Company has provided a limited guarantee to GBRA for agreed upon obligations. GBRA is a water conservation and reclamation district established by the Texas Legislature that oversees water resources for 10 counties. Under the terms of the agreement with GBRA, Camino Real is contracted to receive up to 2,419 acre-feet of potable water annually. The GBRA agreement involves four off-takers, including Camino Real. GBRA plans to extend a potable water pipeline from the City of Lockhart to the City of Mustang Ridge and surrounding areas. Camino Real is contracted to be the utility service provider in this area of the Austin metropolitan region and to provide potable water, recycled water, and wastewater services to portions of the City of Mustang Ridge and surrounding areas. In 2022, Camino Real committed $21.5 million for its share of the cost of the pipeline project. In 2023, Camino Real committed an additional $22.3 million for its share of the cost of the pipeline project. As of June 30, 2025, this committed cash has not been transferred to GBRA and is classified as part of restricted cash on the unaudited Condensed Consolidated Balance Sheets. The Company currently expects the committed cash to be transferred to GBRA before the end of 2025.

Contingencies

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.

Groundwater Contamination

The Company has undertaken litigation against third parties to recover past and future costs related to groundwater contamination in its service areas. The cost of litigation is generally expensed as incurred and any settlement is first offset against such costs. The CPUC’s general policy requires all proceeds from 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.

The Company is a party tofour separate class-action settlements with the following companies: 3M Company; E.I. Du Pont de Nemours and Company (n/k/a EIDP, Inc.), DuPont de Nemours, Inc., The Chemours Company, The Chemours Company FC, LLC, and Corteva, Inc. (collectively, DuPont); Tyco Fire Products LP; and BASF Corporation. These settlements are designed to resolve certain claims for PFAS contamination of drinking water in active public water systems. The Company plans to use settlement proceeds received, net of fees and expenses, to offset capital expenditures required to comply with the PFAS drinking water regulations. In May of 2025, the Company received $10.6 million of proceeds, net of legal fees and expenses, from a settlement with 3M Company. This was the first often unequal settlement installments that the Company expects to receive from 3M Company. The second installment is expected to be received from 3M Company in late 2025 and the remaining installments are expected to be received annually thereafter. Proceeds from settlements with DuPont, Tyco Fire Products LP, and BASF Corporation are expected to be received beginning in late 2025. The Company intends to allocate the proceeds on a prorated basis to identified PFAS projects.

Other Legal Matters

While the probable outcome of disputes and litigation matters, including those concerning groundwater contamination, 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. 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 10. 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.

The Company’s specific valuation methods include the following:

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

Pension and other postretirement benefit plan assets are measured at either net asset value or level 1 depending on the investment.

Long-term debt fair values are estimated using the published quoted market price, if available, or using a 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 0.7%.

Note 11. Accumulated Other Comprehensive Loss

The table below presents changes in Accumulated Other Comprehensive Loss (AOCL), net of tax, by component for the three and six months ended June 30, 2025 and 2024:

The table below presents amounts reclassified out of AOCL by component and the unaudited Condensed Consolidated Statements of Operations location of those amounts reclassified during the three and six months ended June 30, 2025 and 2024, respectively.

(1) Amortization of these items is included in other components of net periodic benefit cost in other income and expenses on the unaudited Condensed Consolidated Statements of Operations.

(2) The tax benefit is included within income tax expense on the unaudited Condensed Consolidated Statements of Operations.

Note 12. Segment Information

The Company principally provides water and water-related utility services in California, Washington, New Mexico, Hawaii, and Texas. The Company’s operating segments were aggregated intoone reportable segment as the operating segments provide similar services and operate in similar regulatory environments. The Company defines its segments on the basis of the way in which internally reported financial information is regularly reviewed by the chief operating decision maker (CODM) to analyze financial performance, make decisions, and allocate resources.

The Company’s CODM is the Chairman, President and Chief Executive Officer. The CODM assesses performance of the segment and decides how to allocate resources on a consolidated basis based on consolidated net income. The CODM uses consolidated net income to evaluate income generated from the segment in making operating, capital, and business decisions.

The CODM is regularly provided with only the consolidated operating expenses at the same level of detail as noted on the face of the unaudited Condensed Consolidated Statements of Operations. Total assets are also provided as noted on the face of the unaudited Condensed Consolidated Balance Sheets.