Exhibit 99.1

California Water Service Group Reports Fourth Quarter and Full Year 2024 Results

SAN JOSE, Calif., February 27, 2025 (GLOBE NEWSWIRE) -- California Water Service Group (Group or Company, NYSE: CWT), a leading publicly traded water utility serving California, Hawaii, New Mexico, Washington, and Texas, today reported financial results for the fourth quarter and full year of 2024.

Highlights included:

“Our strong operational and financial performance in 2024 demonstrates our team’s exceptional execution of our business strategy. A key milestone was filing our 2024 California GRC, which includes investments to provide a safe and sustainable water supply to our customers. As we enter 2025, we’re focused on working together with the CPUC to advance this rate case to a timely decision,” said Chairman and CEO Martin A. Kropelnicki.

Q4 2024 Financial Results

Full Year 2024 Financial Results

Impact of 2023 Interim Rates on 2024 Results

As a result of the Q1 2024 adoption of the 2021 California GRC decision, interim rate relief related to 2023 totaling $87.5 million of revenue and $64.0 million of net income was included in 2024 operating results. This included $20.2 million of revenue and $13.6 million of net income that was attributable to the three months ending Dec. 31, 2023.

Liquidity, Financing, and Capital Investment

In 2024, Group increased its cash position to $95.7 million from $85.0 million in 2023, of which $45.6 million was restricted, and had additional short-term borrowing capacity of $395 million, subject to meeting the borrowing conditions on its Group and Group subsidiary California Water Service (Cal Water) lines of credit.

On Aug. 2, 2024, the CPUC approved an application for Cal Water to issue up to $1.3 billion in new debt and equity securities.

On Oct. 22, 2024, Cal Water issued $125.0 million in aggregate principal amount of its 5.22% First Mortgage Bonds (Bonds) due Oct. 22, 2054. The Bonds include terms and conditions similar to Cal Water’s existing First Mortgage Bond indebtedness.

Group capital investments during the 12-month period ended Dec. 31, 2024, increased to a record total of $471.0 million, up 23% over the same period last year.

California Regulatory Activity

2024 General Rate Case and Infrastructure Improvement Plan

On July 8, 2024, Cal Water submitted a GRC that included infrastructure improvement plans for 2025-2027. Cal Water proposes to invest more than $1.6 billion in its districts from 2025-2027 in order to support its ability to provide a reliable supply of high-quality water and enhance sustainability. In its application, Cal Water proposes to adjust rates to increase total revenue by $140.6 million, or 17.1%, in 2026; $74.2 million, or 7.7%, in 2027; and $83.6 million, or 8.1%, in 2028. Importantly, the application also proposes a Low-Use Water Equity Program that would decouple revenue from water sales to assist low-water-using, lower-income customers.

The triennial filing, which began in July 2024, is an approximately 18-month review process leading to a final CPUC decision.

The GRC is progressing on time, with the assigned commissioner issuing a Scoping Memo and Ruling in Nov. 2024 and subsequently completing public participation hearings for customers. In addition, in Jan. 2025, Cal Water received a report from CalPA providing comments on our filing. Cal Water has 60 days to provide a response to the CalPA report. Given the progress made in the proceeding and recent decisions issued by the CPUC for other water utilities, the Company is optimistic a final decision can be reached as scheduled.

Cost of Capital

The CPUC has authorized Cal Water to maintain its current cost of capital structure through Dec. 31, 2026. Cal Water’s current cost of capital includes:

The CPUC’s decision postpones Cal Water’s next Cost of Capital application from May 1, 2025, to May 1, 2026. Additionally, the CPUC reauthorized the WCCM, which may trigger an ROE adjustment based on changes in the Moody’s Utilities Bond Index. The next WCCM calculation will be performed as of Sept. 30, 2025, and the adjustment that results from the calculation, if any, would take effect Jan. 1, 2026.

Emergency Response Actions

Group maintained its emergency response leadership throughout 2024, regularly conducting Community Emergency Operations Response training for its employees, first responders, and organizations across its service areas.

Notable exercises included subsidiary Hawaii Water Service’s July 2024 drills in Maui and on the Big Island, which brought together employees, emergency responders, regulatory agencies, state officials, utilities, contractors, and community partners.

None of Cal Water’s service areas were directly impacted by the Southern California wildfires in early 2025; however, in response, the Company has made contributions to the American Red Cross, World Central Kitchen, California Fire Foundation, Pasadena Humane, and SPCA LA. Group remains committed to supporting both its affected employees and the impacted communities during this challenging time.

Group’s proactive emergency preparedness focuses on wildfire risk mitigation through strategic vegetation management, infrastructure upgrades, crew positioning, and backup power systems. It has invested nearly $55 million over the past five years in pumps, pipelines and emergency generators to mitigate wildfire risk, and has made contributions of nearly $1 million to support local fire agencies across its service areas.

For additional details, please see Form 10-K which will be available at https://www.calwatergroup.com/investors/financials-filings-reports/sec-filings

Quarterly Earnings Teleconference

All stockholders and interested investors are invited to attend the conference call on Thursday, Feb. 27, 2025 at 8 a.m. PT (11 a.m. ET) by dialing 1-800-715-9871 or 1-646-307-1963 and keying in ID# 5777452. Alternatively, the live audio webcast may be accessed at https://edge.media-server.com/mmc/p/cbxzkhb6. Please join at least 15 minutes in advance to ensure a timely connection to the call. A replay of the call will be available from 2 p.m. ET on Thursday, Feb. 27, 2025, through Monday, Mar. 31, 2025, at 1-800-770-2030 or 1-609-800-9909 using ID# 5777452, or at the webcast above. The call will be hosted by Chairman and Chief Executive Officer Martin A. Kropelnicki; Senior Vice President, Chief Financial Officer and Treasurer James P. Lynch; and Vice President, Rates and Regulatory Affairs, Greg A. Milleman. Prior to the call, the Company will furnish a slide presentation on its website.

About California Water Service Group

California Water Service Group is the parent company of regulated utilities California Water Service, Hawaii Water Service, New Mexico Water Service, and Washington Water Service, as well as Texas Water Service, a utility holding company. Together, these companies provide regulated and non-regulated water and wastewater service to more than 2.1 million people in California, Hawaii, New Mexico, Washington, and Texas. California Water Service Group’s common stock trades on the New York Stock Exchange under the symbol “CWT.” Additional information is available online at www.calwatergroup.com.

This news release contains forward-looking statements within the meaning established by the Private Securities Litigation Reform Act of 1995 (“PSLRA”). The forward-looking statements are intended to qualify under provisions of the federal securities laws for “safe harbor” treatment established by the PSLRA. Forward-looking statements in this news release are based on currently available information, expectations, estimates, assumptions and projections, and our management’s beliefs, assumptions, judgments and expectations about us, the water utility industry and general economic conditions. These statements are not statements of historical fact. When used in our documents, statements that are not historical in nature, including words like will, would, expects, intends, plans, believes, may, could, estimates, assumes, anticipates, projects, progress, predicts, hopes, targets, forecasts, should, seeks or variations of these words or similar expressions are intended to identify forward-looking statements. Examples of forward-looking statements in this news release include, but are not limited to, statements describing Group’s expected financial performance, Group’s plans and proposals pursuant to and timing of the 2024 California GRC; and authorized cost of capital and potential adjustments to same. 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 that may cause actual results to be different than those expected or anticipated include, but are not limited to: our ability to invest or apply the proceeds from the issuance of common stock in an accretive manner; governmental and regulatory commissions’ decisions, including decisions on proper disposition of property; consequences of eminent domain actions relating to our water systems; changes in regulatory commissions’ policies and procedures, including with respect to our ability to proposed fully decoupled WRAMs; the outcome and timeliness of the CPUC’s 2024 California GRC; 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 programs; housing and customer growth; the impact of opposition to rate increases; our ability to recover costs; availability of water supplies; issues with the implementation, maintenance or security of our information technology systems; civil disturbances or terrorist threats or acts; the adequacy of our efforts to mitigate physical and cyber security risks and threats; the ability of our enterprise risk management processes to identify or address risks adequately; labor relations matters as we negotiate with the unions; changes in customer water use patterns and the effects of conservation, including as a result of drought conditions; our ability to complete, in a timely manner or at all, successfully integrate and achieve anticipated benefits from announced acquisitions; the impact of weather, climate change, natural disasters, and actual or threatened public health emergencies, including disease outbreaks, on our operations, water quality, water availability, water sales and operating results and the adequacy of our emergency preparedness; restrictive covenants in or changes to the credit ratings on our current or future debt that could increase our financing costs or affect our ability to borrow, make payments on debt or pay dividends; risks associated with expanding our business and operations geographically; the impact of stagnating or worsening business and economic conditions, including inflationary pressures, general economic slowdown or a recession, increasing interest rates, instability of certain financial institutions, changes in monetary policy, adverse capital markets activity or macroeconomic conditions as a result of geopolitical conflicts, and the prospect of a shutdown of the U.S. federal government; the impact of market conditions and volatility on unrealized gains or losses on our non-qualified benefit plan investments and our operating results; the impact of weather and timing of meter reads on our accrued unbilled revenue; the impact of evolving legal and regulatory requirements, including emerging environmental, social and governance requirements and our ability to comply with PFAS regulations; and other risks and unforeseen events described in our Securities and Exchange Commission (“SEC”) filings. 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 news release. When considering forward-looking statements, you should keep in mind the cautionary statements included in this paragraph, as well as the Annual Report on Form 10-K, Quarterly 10-Q, and other reports filed from time-to-time with the SEC. 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.

CALIFORNIA WATER SERVICE GROUP

CONDENSED CONSOLIDATED BALANCE SHEETS

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CALIFORNIA WATER SERVICE GROUP

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

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(In thousands, except per share data)