California Water Service Group 2024 SUMMARY ANNUAL REPORT

California Water Service Group

2024 SUMMARY ANNUAL REPORT
Vision
Action

About California Water Service Group

California Water Service Group (NYSE: CWT) is the third-largest publicly traded water utility in the United States, providing high-quality water and wastewater services to more than two million people through four regulated subsidiaries: California Water Service (Cal Water), Hawaii Water Service (Hawaii Water), New Mexico Water Service (New Mexico Water), and Washington Water Service (Washington Water). A fifth subsidiary, Texas Water Service, invests in water and wastewater infrastructure in Texas.
We are committed to improving the quality of life for our customers, communities, employees, and stockholders. We do this by living our core values and delivering on our promise to provide quality, service, and value.

Vision without action lacks impact.

But when vision leads to action, the result is both impactful and meaningful. At California Water Service Group, we contribute to the greater good by acting on our vision and executing a forward-looking strategy that enhances the quality of life for our customers, communities, employees, and stockholders.

Vision Stewardship

As a provider of a life-sustaining, finite natural resource, we are serious about environmental stewardship. Long before climate change and ESG took center stage, we recognized the importance of conserving and protecting our water supplies. Today, our approach to sustainability is multifaceted and includes water-use efficiency, water supply planning and resilience, and responsible, efficient operations.
Above: Employees oversee an innovative water reuse partnership with the Horse Park at Woodside, which shares our dedication to environmental stewardship.

Saving Our Precious Water

Occasionally, we need to flush water from our pipes to enhance water quality. In Woodside, California, our team found a way to partner with one of our customers to put the flushed water to good use. And it happens to be a customer who shares our dedication to responsible environmental stewardship. The Horse Park at Woodside, which provides services to underserved youth and supports equine therapy for those with disabilities, also eradicates invasive plant species, maintains bluebird boxes, and keeps raptor perches throughout its property. Here, the flushed water is used to make the arenas safe for the horses.
This water reuse partnership with The Horse Park is part of a much larger water conservation effort, as we offer everything from turf replacement to efficient appliance rebates to larger scale programs for fire departments, cities, and commercial and industrial customers.
In 2024, we invested approximately $2 million in conservation programs that are anticipated to save 52 million gallons of water per year.
“We continue to identify recycled water opportunities, which should expand now that the new California standard for converting wastewater to drinking water became effective October 1, 2024.We're currently developing a Water Reuse Strategic Plan that will guide us as we work to increase our recycled water supplies.”
Ken Jenkins, Vice President, Water Resource Planning & Sustainability

Pursuing Recycled Water Opportunities

We currently deliver more than 2 billion gallons of recycled water per year, roughly 2.5% of our total water supply, for landscaping, irrigation, and industrial uses. We believe recycled water will be an increasingly important source of supply in the future; in fact, we aim to increase deliveries to at least 5% of our total supply by 2035. To that end, we have reached an agreement with Caltrans to bring recycled water to our Mid-Peninsula service area in northern California, and we are participating in the PureWater Peninsula project, which is exploring indirect and direct potable reuse options in the San Francisco Bay Area.

Operating Efficiently and Responsibly

In 2024, we made significant progress on our efforts to lessen our impact on the environment. We established new vehicle standards to add more electric and hybrid vehicles to our fleet and identified four sites for the first phase of construction of electric vehicle charging infrastructure.
On the energy efficiency front, we upgraded the heating, ventilation, and air conditioning (HVAC) system on our headquarters campus, a project that is expected to reduce energy usage by 170,400 kilowatt hours per year. We also invested more than $2 million to replace pumps and motors with new equipment that will optimize energy consumption and increase reliability
Finally, Cal Water requested proposals for the design and construction of two onsite solar projects, one located at our headquarters and another at our Northeast Treatment Plant in Bakersfield. These projects, with an expected combined capacity of two megawatts of direct current, will help reduce our use of fossil-fuel generated electricity, improve our climate resilience, and generate customer savings.

Vision Service

Service is the heart of our company. A lot of businesses make that claim, but how many actually have the word "service" in their name? For us, it takes many forms, whether we're contributing time and resources to non-profit organizations that share our commitment to enhancing the quality of life in our communities; finding ways to keep rates affordable and help people in need; or providing the friendly, professional phone and field services that customers have come to expect.
Above: Employees work together at Monarch Meadows, a new installation at Happy Hollow Park & Zoo that showcases drought-tolerant landscaping, attracts pollinators, and supports biodiversity
$1.13M was contributed by our stockholders to charitable organizations in our service areas in 2024.

Helping Organizations That Make Our Communities Better

To kick off our 2024 Season of Service, employees volunteered at Happy Hollow Park and Zoo, planting drought-tolerant landscaping in a new installation we sponsor called Monarch Meadows. In addition to showcasing the beauty of waterefficient plants to visitors from our Bay Area service areas, the Meadows supports biodiversity and attracts pollinators.
This was just one of the ways our employees contributed time to worthwhile community endeavors. In 2024, more than 600 employees throughout the company volunteered at a variety of charitable organizations, packing food baskets, cleaning up parks, serving meals, organizing coat and sock drives, and supporting local youth.

Keeping Water Service Affordable

We deliver the safe, reliable supply of water our customers need to survive and thrive. That's why we work hard to keep our service affordable, even as the costs for materials, electricity, labor, and water quality treatment continue to rise. One of our strategies for maintaining affordability is zealously promoting water-use efficiency; a 2024 study released by the Alliance for Water Efficiency found that Cal Water's conservation programs have reduced customer bills by as much as 20.5% over the last 15 years compared to what they would have been without them.
Beyond conservation programs, we pursue rate structures that establish very low costs for the first units of water used and Rate Support Funds that provide discounts for customers in higher-cost service areas. We also offer a Customer Assistance Program for lower-income families and a stockholder-funded Hardship Grant Program.
24% of our customers receive assistance from our Rate Support Funds and Customer Assistance Program.

Providing Excellent Customer Service

The reality is that customer satisfaction is affected by rate increases. In the summer of 2024, when California customers were impacted by large increases resulting from the delay in finalizing our 2021 rate case, customer satisfaction levels temporarily dropped. We continued to provide excellent customer service, working steadfastly to meet key performance metrics related to customer calls, appointments, and billing. We also introduced a new payment option with Walmart Bill Pay, which offers customers the convenience of paying their bills with cash or debit cards at Walmart and having their accounts credited in near real time. Eventually, customer satisfaction levels recovered, and we ended the month of December with an average customer satisfaction level of 90.7%.
"Every time I call the water company, I like to speak with customer service. They're always really, really, really kind, professional, and helpful."
East Los Angeles Customer

Vision Reliability

Our customers expect safe, clean water every time they turn on the tap. And we're here for them, morning, noon, and night. We recognize that whether they are using it to hydrate, cook, clean, or create, water is integral to daily life. One way to enhance service reliability is to invest diligently in infrastructure upgrades, maintenance, and backup power. But no amount of investment can guarantee that issues won't arise, and when that happens, our dedicated team responds with urgency and purpose.
Above: Employees respond to an after-hours leak in Selma, California.
"As we've been going through this whole landslide episode, Cal Water has been out there basically 24/7 keeping the water on, which we greatly appreciate as a city."
Mayor John Cruikshank, Rancho Palos Verdes

Responding to Customer Emergencies 24/7

Day or night, we are ready to serve; our on-call water professionals answer after-hours calls and customers can rely on our crews to respond promptly to emergencies. On the Palos Verdes Peninsula, we've taken our 24/7 commitment to another level. After recordsetting rains over two winters caused ground movement to accelerate in historic landslide areas, we stationed employees on site around the clock to allow us to respond more quickly to leaks caused by the land movement. As federal, state, and local governments continue to seek solutions to the land movement, we have remained responsive and engaged, both during business hours and after.

Prioritizing Backup Power Generation and Wildfire Hardening

One of the things that can impact our ability to move water from the source to the customer's tap is an interruption in our power supply. We're strategic about where we install backup power generation to improve the likelihood that we can keep water flowing if our electricity service is interrupted, whether due to a natural disaster or a public safety power shutoff by our energy provider. In 2024, we installed an additional 26 panel boards and generators.
Cal Water was also part of a consortium that applied for and was awarded a grant from the Grid Resilience and Innovation Partnerships (GRIP) program under the U.S. Department of Energy (DOE). If we receive the funds, we plan to install battery energy storage systems that we believe will help reduce our reliance on fossil fuels while helping to provide uninterrupted service to our customers during events exacerbated by climate change, such as extreme heat and wildfires.

Investing in Our Water Systems

In 2024, we invested a record $471 million in water system infrastructure needed to provide safe, reliable service to customers. Although these upgrades are reflected in customers' rates, they contribute to affordability by preventing future problems that would likely be costlier to address down the line. 2024 projects included:
  • 110 water quality treatment-related projects
  • 124 storage tanks and tank-related projects
  • Four well renewal projects
  • 27 projects related to the computer system that enables us to monitor and operate water system components remotely
  • 189,135 feet of new water main

Vision Safety

Protecting the health and safety of our customers and our employees is paramount. We think about safety when we test and treat our water. We think about it when securing our storage tanks and other key facilities. We think about it when reconfiguring our water systems to better support firefighting and prepare for earthquakes and other emergencies. And we think about it when delivering safety and emergency response training to our employees. For us, it's safety first, last, and always.
Above: Employees construct a treatment plant designed to enable us to meet new water quality standards for certain per- and polyfluoroalkyl substances (PFAS).

Preparing to Meet New Standards

April of 2024 saw the United States Environmental Protection Agency's (EPA's) adoption of a new National Primary Drinking Water Regulation for certain PFAS, which requires water utilities to monitor for these substances by 2027 and comply with new limits by 2029. Throughout the year we continued our proactive efforts, completing PFAS monitoring at all active water sources, treating sources for PFAS at 25 sites, and preparing to install another 63 treatment systems in California, 35 in Washington, and two in New Mexico. We anticipate investing approximately $226 million over the next three years to comply with the new regulation, and we continue to aggressively pursue cost recovery from polluters to minimize the impact on our customers' rates.
"Our mission is to keep our water safe, and we take compliance seriously. But we do it with an eye toward affordability. That's why we seek cost recovery from polluters and look for the best, lowest cost treatment and maintenance options."
Michael Luu, Senior Vice President, Corporate Services & Chief Risk Officer
In 2024, we conducted approximately 615,000 tests on more than 86,000 samples collected throughout our water systems.

Delivering High-Quality Water

In 2024, our water met or surpassed all state and federal standards set to protect public health and safety. That's an impressive achievement, when you think about the herculean effort it takes to deliver 94 billion gallons of water that meets more than 250 water quality standards. Our dedicated team executed a rigorous quality assurance program while taking on other important initiatives, including inventorying our service lines to comply with the EPA Lead and Copper Rule Revisions; earning certification of our water quality laboratory under new national regulations; and monitoring and providing data to the EPA to support future standard-setting efforts.

Operating Safely

One of the most important aspects of operating safely is taking steps to prevent accidents and prepare for emergencies. First, prevention. We invested more than $3.8 million in physical security enhancements at key facilities in 2024, and that investment is paying off. In one case, our security system visually detected the illegal use of fireworks near a water storage tank and requested fire department response before a small wildfire could spread. Second, preparation. We know that natural disasters and other emergencies will occur, so we do our best to prepare for them. Emergency response drills and training are key to preparedness, and in 2024 we conducted sessions for our employees and first responders in our communities, including those in Hawaii, which suffered a horrific wildfire near our service area in 2023. And throughout the year, we provide safety-related training to our people, one of our most important assets, to help equip them to take care of themselves and our customers when disasters happen.

Business at a Glance

  • Our mission: to be the leading provider of sustainable water and wastewater services.
  • Our purpose: to enhance the quality of life for our customers, communities, employees, and stockholders.
  • Our operating imperatives: affordable and excellent service, sustainability and community impact, public health and safety, enhanced stockholder value, and employees who are our best advocates.

Who We Are

Population served
Company founded
Communities served
Employees
Annual operating revenue

What We Do

Gallons of high-quality drinking water delivered annually
Gallons of wastewater processed responsibly each year

What Matters to Us

Invested in infrastructure for safe, reliable service
Of our customers get bill discounts
Contributed to charitable organizations
Water quality standards met or surpassed to protect public health
Annual dividend has increased

Our Service
Areas

California

CUSTOMER CONNECTIONS

  • Year 2023: Four hundred ninety-seven thousand seven hundred
    *
  • Year 2024: Four hundred ninety-nine thousand four hundred
    *

DISTRICTS

  • Bakersfield
  • Bay Area Region (serving South San Francisco, Colma, Broadmoor, San Mateo, San Carlos, Lucerne, Duncans Mills, Guerneville, Dillon Beach, Noel Heights, and portions of Santa Rosa)
  • Bear Gulch (serving portions of Menlo Park, Atherton, Woodside, and Portola Valley)
  • Dixon
  • East Los Angeles
  • Kern River Valley
  • Livermore
  • Los Altos (including portions of Cupertino, Los Altos Hills, Mountain View, and Sunnyvale)
  • Los Angeles County Region (serving Palos Verdes Estates, Rancho Palos Verdes, Rolling Hills, Rolling Hills Estates, Fremont Valley, Lake Hughes, Leona Valley, and Lancaster)
  • Marysville
  • North Valley Region (serving Chico, Hamilton City, and Oroville)
  • Salinas Valley Region (including Salinas and King City)
  • Selma
  • South Bay Region (serving Hermosa Beach, Redondo Beach, Carson, and portions of Compton, Harbor City, Long Beach, Los Angeles, and Torrance)
  • Stockton
  • Visalia
  • Westlake
  • Willows
*Includes Hawthorne & Commerce Operations and Maintenance agreement and Travis Airforce Base Utility Privatization contract service connections
"Infrastructure investment is key to delivering, safe reliable water service to our customers and the primary growth driver of the Company; however, we do pursue mergers and acquisitions opportunistically in high growth regions, such as Texas."
Marty Kropelnicki, Chairman & CEO

Hawaii

CUSTOMER CONNECTIONS

2023 6,500
2024 6,700
Serving the communities of Ka'anapali, Kapalua, Pukalani, Waikoloa, North Kona Coast, Keauhou, Kalaeloa, and Poipu on the islands of Maui, Hawaii, Oahu, and Kauai

New Mexico

CUSTOMER CONNECTIONS

2023 11,400
2024 11,500
Serving the communities of Meadow Lake, Cypress Gardens, Rio Communities, Rio Del Oro, Elephant Butte, Sandia Knolls, Indian Hills, Woodland Hills, Squaw Valley, Cedar Crest, Crouch Mesa/ Morningstar, and Monterey Park in the counties of Sierra, Valencia, Torrance, Bernalillo, and San Juan

Washington

CUSTOMER CONNECTIONS

2023 38,000
2024 38,300
Serving more than 425 neighborhoods and small communities in the counties of Clallam, Jefferson, Kitsap, Mason, Pierce, King, San Juan, and Thurston

Texas*

CUSTOMER CONNECTIONS

2023 2,800
2024 4,200
Serving communities near Castroville, New Braunfels, Uhland, Kyle, Buda, Mustang Ridge, Creedmoor, and Niederwald in the counties of Medina, Guadalupe, Hays, Caldwell, and Travis
*Our Texas subsidiary invests in water and wastewater infrastructure through a joint venture with BVRT Holding Company. BVRT currently operates seven wastewater utilities.

Chairman's Letter

In the aftermath of one of the most destructive wildfires in California history, we have a responsibility to evaluate our own wildfire hardening program, infrastructure investment plans, and emergency response capabilities.

At the outset, I must emphasize that no urban water system in the world is designed to fight a conflagration of the magnitude seen in Southern California in early 2025. But what can we learn from the tragedy? What have we learned ourselves over the last 10 years, dealing with the Erskine, Camp, Woolsey, and Mendocino Complex Fires, among others?

First, preparation is key. Clearing brush. Optimizing available supplies. Reconfiguring pipes for higher flows where appropriate. Staging crews and backup power. Although none of these efforts can guarantee safety in a fire, it is all vital, and just part of our ongoing wildfire preparation program. Over the past five years, we have invested nearly $55 million in pipelines, pumps, and emergency generators specifically intended to better position us in the event of fire.

Second, response must be practiced. Emergencies often cross jurisdictional boundaries, and having the ability to coordinate with partners is essential. That is why we host Community Emergency Response training for first responders,
community leaders, and other organizations in our service areas on a regular basis.

Third, water providers and firefighting agencies should maintain open lines of communication during emergencies. If a water provider understands the needs of a firefighting agency at a given location, it may be able to modify water system operations to meet those needs. For obvious reasons, these relationships should be nurtured long before an emergency occurs, and this is something we work on year-round. In 2024, we awarded more than $175,000 to fire agencies in our service areas to help prepare them for future emergencies.

This is in no way intended to second-guess the actions of those involved in the Los Angeles area fires, and our hearts go out to everyone who was affected. Even before the fires were contained, we had contributed more than $100,000 to organizations on the ground, the American Red Cross, the World Central Kitchen, the California Fire Foundation, and, to a slightly lesser degree, Pasadena Humane and the Society for the Prevention of Cruelty to Animals LA.

Rather, it's an acknowledgment that wildfires pose serious risks, and although no urban water system is designed to fight wildfires, there are things we can and are doing to help lessen the risk.
Annual Dividend Per Common Share
Increased every year since 1967
In addition to our wildfire hardening and emergency response efforts, in 2024:

We reported net income of $190.8 million and earnings per common share of $3.25, which included $64.0 million of net income and $1.09 of earnings per common share that would have been collected in 2023 if not for the delay in our California 2021 General Rate Case and Infrastructure Improvement Plan (GRC/IIP).
We filed our 2024 GRC/IIP and have worked to keep the proceeding on schedule. Given recent decisions issued by the California Public Utilities Commission (CPUC), we are optimistic that we will receive a decision on a reasonably timely basis. We also continued efforts to actively pursue rate relief in our other states to get more timely recovery of our capital investments.
We invested $471 million in infrastructure improvements we believe are necessary for water quality and reliability, including $8 million in treatment facilities for per- and polyfluoroalkyl substances (PFAS). Our strong balance sheet, combined with the CPUC's August 2024 decision authorizing us to issue up to $1.3 billion of new equity and debt securities, positions us well to maintain momentum on our infrastructure improvement program through 2027.
And we continued to provide high-quality water and excellent service to our customers. On the water quality front, we met or surpassed every standard set to protect public health and safety in every one of our water systems. For customers, we introduced Promise Pay in Washington and New Mexico to continue helping customers with past due balances, and we rolled out Walmart Bill Pay, a convenient payment option, particularly for unbanked and underbanked customers.


2024 saw us successfully executing our strategy to mitigate risk and enhance sustainability, invest in the infrastructure needed to provide a safe, reliable water supply, and provide the high-quality water and excellent service our customers have come to expect. In 2025 and beyond, we remain laser-focused on our mission and committed to executing this strategy.

Thank you for believing in our vision and supporting the important work we do every day to contribute to the greater good and enhance the quality of life for those we serve.

Martin A. Kropelnicki signature
Martin A. Kropelnicki,
Chairman, President & Chief Executive Officer
Capital Investment
in Infrastructure
$1.8 billion invested over 5 years

Lead Independent Director's Letter

Having vision isn't the same as having the ability to predict the future. Rather, having vision means thinking beyond the day to day, anticipating risks and changes to the operating environment, and understanding shifts in customer needs and expectations.

But it's not enough to simply have vision. To be successful, you must act on that vision. Take steps to mitigate risks. Modify operations. Take advantage of new technologies. Give customers what they want before they even know they want it.

As your Lead Independent Director, I've had the pleasure of seeing firsthand what it looks like when a company acts upon its vision. The Board and I take our oversight responsibility seriously. Having a robust flow of two-way communication with management supports our
ability to work effectively together to provide value to our stockholders, customers, employees, and communities.

I continue to be impressed by the dedication, credentials, and performance of both your management team and your Board of Directors. It's an honor to serve with them as we each bring diverse experience and expertise to bear to contribute to the Company's continued success.

Thank you for your continued confidence and investment in California Water Service Group, and I wish you the best in 2025 and beyond.

Scott Morris signature
Scott Morris,
Lead Independent Director

Financial Highlights*

Dollars in thousands, except per common share data
YEAR ENDED DECEMBER 31 2024 2023 2022 2021 2020
Market price at year end $45.33 $51.87 $60.64 $71.86 $54.03
Book value per share $27.49 $24.72 $23.70 $21.72 $18.08
Earnings per share (diluted) $3.25 $0.91 $1.77 $1.96 $1.97
Dividend per share $1.12 $1.04 $1.00 $0.92 $0.85
Operating revenue $1,036,806 $794,632 $846,431 $790,909 $794,307
Net income attributable
to California Water
Service Group
$190,807 $51,911 $96,011 $101,125 $96,831
*Certain numbers reflect prior period adjustments. See Form 10-K for details.

Looking Ahead

We want to thank employees who retired in 2024. As you look to your next chapter, may you see only good health and happiness ahead. A special thank you to those retiring with 25 years of service or more:

Michael Jones
Director, Subsidiary Operations and Chief EOC/IC
46 years
Douglas Varney
District Manager
37 years
Anthony Carrasco
Special Projects Manager
33 years
Scott Bradfield
Certified Pump Operator
34 years
Estevan Hernandez
Foreman-Construction & Operation
34 years
Eliot Cervantes
Distribution Service Technician, Delinquent Account Technician
33 years
Thomas Brassfield
Operations Manager
31 years
Susana Marin
Water Systems Material Specialist, Operations Clerk
28 years
Thomas Smegal
Special Projects Manager and former CFO
27 years
Mark Valentine
Foreman-Construction
25 years
Joan Angel
Cross-Connection Control Specialist
25 years
Todd Potter
Certified Chief Pump Operator
25 years
Sean Cull
Water System Operation Maintenance Worker
25 years

Looking Back

We want to take a moment to celebrate the awards and acknowledgments we received in 2024:

Excellence in Promoting WaterSenseLabeled Products award
Excellence in Community Grants and Scholarships award from NAACP Butte County Chapter
Newsweek's "America's Greenest Companies" list
Newsweek's "America's Most Responsible Companies" list fourth year in a row
National Association of Water Companies' Living Water Award for employee John Kadowaki
Newsweek's the "World's Most Trustworthy Companies" list for the second year in a row
Great Place to Work for the ninth consecutive year
Top Workplace in the Bay Area for the 12th year

CWT 20-Year Total Return on Investment

S&P 500
CWT
On $100 stock purchase
on January 1, 2005, with
dividends reinvested

Eight-Year Financial Review

Eight-Year Financial Review
Summary of Operations 2024 2023 2022 2021 2020 2019 2018 2017
Operating revenue $1,036,806 $794,632 $846,431 $790,909 $794,307 $714,557 $698,196 $676,113
Operating expenses $811,752 $717,497 $718,771 $664,139 $657,641 $615,145 $587,656 $569,030
Interest expense, other income and expenses, net $34,969 $25,759 $32,397 $25,791 $39,835 $36,296 $44,956 $34,143
Net income $190,807 $51,911 $96,011 $101,125 $96,831 $63,116 $65,584 $72,940
Common Share Data
Earnings per share (diluted) $3.25 $0.91 $1.77 $1.96 $1.97 $1.31 $1.36 $1.52
Dividend declared $1.12 $1.04 $1.00 $0.92 $0.85 $0.79 $0.75 $0.72
Dividend payout ratio 34% 114% 57% 47% 43% 60% 55% 47%
Book value $27.49 $24.72 $23.70 $21.72 $18.08 $15.84 $15.19 $14.56
Market price at year end $45.33 $51.87 $60.64 $71.86 $54.03 $51.56 $47.66 $45.35
Common shares outstanding at year end (in thousands) 59,484 57,724 55,598 53,716 50,334 48,532 48,065 48,012
Return on average common stockholders' equity 12.5% 3.8% 7.7% 9.7% 11.5% 8.4% 9.2% 10.7%
Long-term debt interest coverage 5.46 2.02 3.31 3.52 3.87 3.10 3.57 4.58
Balance Sheet Data
Net utility plant $4,158,704 $3,773,255 $3,472,931 $2,846,862 $2,650,558 $2,406,370 $2,232,723 $2,047,965
Total assets $5,181,237 $4,595,533 $4,264,813 $3,623,271 $3,394,248 $3,111,308 $2,837,704 $2,744,710
Long-term debt, including current portion $1,176,993 $1,053,440 $1,055,797 $1,060,986 $786,227 $808,622 $814,938 $531,713
Capitalization ratios:
Common stockholders' equity 59.7% 57.6% 55.6% 52.5% 53.7% 49.4% 47.3% 56.8%
Long-term debt 40.3% 42.4% 44.4% 47.5% 46.3% 50.6% 52.7% 43.2%
Other Data
Water production (in million gallons) 106,374 103,484 106,945 110,519 110,742 104,735 107,589 104,386
Customers at year end, including Hawthorne and Commerce 560,100 556,400 553,000 547,600 543,000 520,600 517,500 514,300
New customers added 3,700 3,400 5,400 4,600 22,400 3,100 3,200 2,800
Operating revenue per customer $1,851 $1,428 $1,531 $1,444 $1,463 $1,373 $1,349 $1,315
Utility plant per customer $9,642 $8,852 $8,203 $7,665 $7,165 $6,820 $6,240 $5,775
Employees at year end 1,278 1,266 1,225 1,182 1,192 1,207 1,184 1,176

Board of Directors

Gregory E. Aliff

Gregory E. Aliff

Former Vice Chairman and Senior Partner of U.S. Energy & Resources, Deloitte LLP
Director since 2015. Audit Committee, Chair; Finance and Capital Investment Committee; Enterprise Risk Management, Safety and Security Committee.
Shelly M. Esque

Shelly M. Esque

Former Vice President and Global Director of Corporate Affairs, Intel Corporation
Director since 2018. Enterprise Risk Management, Safety and Security Committee; Nominating/Corporate Governance Committee.
Jeffrey Kightlinger

Jeffrey Kightlinger

Principal and Owner of Acequia Consulting, LLC, and Former Chief Executive Officer, The Metropolitan Water District of Southern California
Director since 2023. Audit Committee; Enterprise Risk, Safety and Security Committee.
Martin A. Kropelnicki

Martin A. Kropelnicki

Chairman, President, and Chief Executive Officer of California Water Service Group
Director since 2013.
Thomas M. Krummel, M.D.

Thomas M. Krummel, M.D.

Emile Holman and Chair Emeritus, Department of Surgery, Stanford University School of Medicine
Director since 2010. Organization and Compensation Committee, Chair; Nominating/Corporate Governance Committee.
Yvonne A. Maldonado, M.D.

Yvonne A. Maldonado, M.D.

Senior Associate Dean, Faculty Development and Diversity, Professor of Global Health and Infectious Diseases, Departments of Pediatrics and Epidemiology and Population Health, Stanford University
Director since 2021. Enterprise Risk Management, Safety and Security Committee; Nominating/Corporate Governance Committee.

Gregory E. Aliff

Former Vice Chairman and Senior Partner of U.S. Energy & Resources, Deloitte LLP
Director since 2015. Audit Committee, Chair; Finance and Capital Investment Committee; Enterprise Risk Management, Safety and Security Committee.

Shelly M. Esque

Former Vice President and Global Director of Corporate Affairs, Intel Corporation
Director since 2018. Enterprise Risk Management, Safety and Security Committee; Nominating/Corporate Governance Committee.

Jeffrey Kightlinger

Principal and Owner of Acequia Consulting, LLC, and Former Chief Executive Officer, The Metropolitan Water District of Southern California
Director since 2023. Audit Committee; Enterprise Risk, Safety and Security Committee.

Martin A. Kropelnicki

Chairman, President, and Chief Executive Officer of California Water Service Group
Director since 2013.

Thomas M. Krummel, M.D.

Emile Holman and Chair Emeritus, Department of Surgery, Stanford University School of Medicine
Director since 2010. Organization and Compensation Committee, Chair; Nominating/Corporate Governance Committee.

Yvonne A. Maldonado, M.D.

Senior Associate Dean, Faculty Development and Diversity, Professor of Global Health and Infectious Diseases, Departments of Pediatrics and Epidemiology and Population Health, Stanford University
Director since 2021. Enterprise Risk Management, Safety and Security Committee; Nominating/Corporate Governance Committee.
Scott L. Morris

Scott L. Morris

Chairman, Avista Corporation
Director since 2019. Lead Independent Director; Nominating/ Corporate Governance Committee; Organization and Compensation Committee.
Charles R. Patton

Charles R. Patton

Former Executive Vice President, External Affairs, American Electric Power Company, Inc.
Director since 2023. Audit Committee; Finance and Capital Investment Committee.
Carol M. Pottenger

Carol M. Pottenger

Principal and Owner of CMP Global, LLC, and Retired U.S. Navy Vice Admiral
Director since 2017. Enterprise Risk Management, Safety and Security Committee; Finance and Capital Investment Committee; Nominating/ Corporate Governance Committee.
Lester A. Snow

Lester A. Snow

Former Director of the California Department of Water Resources
Director since 2011. Enterprise Risk Management, Safety, and Security Committee, Chair; Finance and Capital Investment Committee; Organization and Compensation Committee.
Patricia K. Wagner

Patricia K. Wagner

Former Group President, U.S. Utilities, Sempra Energy
Director since 2019. Finance and Capital Investment Committee, Chair; Audit Committee; Organization and Compensation Committee.
Patricia K. Wagner

Patricia K. Wagner

Former Group President, U.S. Utilities, Sempra Energy
Director since 2019. Finance and Capital Investment Committee, Chair; Audit Committee; Organization and Compensation Committee.

Scott L. Morris

Chairman, Avista Corporation
Director since 2019. Lead Independent Director; Nominating/ Corporate Governance Committee; Organization and Compensation Committee.

Charles R. Patton

Former Executive Vice President, External Affairs, American Electric Power Company, Inc.
Director since 2023. Audit Committee; Finance and Capital Investment Committee.

Carol M. Pottenger

Principal and Owner of CMP Global, LLC, and Retired U.S. Navy Vice Admiral
Director since 2017. Enterprise Risk Management, Safety and Security Committee; Finance and Capital Investment Committee; Nominating/ Corporate Governance Committee.

Lester A. Snow

Former Director of the California Department of Water Resources
Director since 2011. Enterprise Risk Management, Safety, and Security Committee, Chair; Finance and Capital Investment Committee; Organization and Compensation Committee.

Patricia K. Wagner

Former Group President, U.S. Utilities, Sempra Energy
Director since 2019. Finance and Capital Investment Committee, Chair; Audit Committee; Organization and Compensation Committee.

Corporate
Officers

Shawn C. Bunting

Shawn C. Bunting

Senior Vice President, General Counsel and Business Development
Shawn C. Bunting

Shawn C. Bunting

Senior Vice President, General Counsel and Business Development
Shannon C. Dean

Shannon C. Dean

Senior Vice President, Customer Service and Chief Sustainability Officer
James P. Lynch

James P. Lynch

Senior Vice President, Chief Financial Officer and Treasurer
Sophie M. James

Sophie M. James

Vice President, Water Quality and Environmental Affairs
Kenneth G. Jenkins

Kenneth G. Jenkins

Vice President, Water Resource Planning and Sustainability
Martin A. Kropelnicki

Martin A. Kropelnicki

Chairman, President, and Chief Executive Officer
Michael B. Luu

Michael B. Luu

Senior Vice President, Corporate Services and Chief Risk Officer
Michael S. Mares

Michael S. Mares

Senior Vice President, Operations

Shawn C. Bunting

Senior Vice President, General Counsel and Business Development

Shannon C. Dean

Senior Vice President, Customer Service and Chief Sustainability Officer

James P. Lynch

Senior Vice President, Chief Financial Officer and Treasurer

Sophie M. James

Vice President, Water Quality and Environmental Affairs

Kenneth G. Jenkins

Vice President, Water Resource Planning and Sustainability

Martin A. Kropelnicki

Chairman, President, and Chief Executive Officer

Michael B. Luu

Senior Vice President, Corporate Services and Chief Risk Officer

Michael S. Mares

Senior Vice President, Operations
Greg A. Milleman

Greg A. Milleman

Vice President, Rates and Regulatory Affairs
Michelle R. Mortensen

Michelle R. Mortensen

Vice President, Corporate Secretary and Chief of Staff
Daryl L. Osby

Daryl L. Osby

Vice President, Emergency Preparedness, Safety, and Security
Elissa Y. Ouyang

Elissa Y. Ouyang

Vice President, Facilities, Fleet, and Procurement
Shilen M. Patel

Shilen M. Patel

Chief Business Development Officer and Vice President, Texas Water Service
Todd K. Peters

Todd K. Peters

Chief Engineering Officer
Martin A. Kropelnicki

Thomas A. Scanlon

Corporate Controller and Principal Accounting Officer
Michael B. Luu

Justin B. Skarb

Vice President, Government and Community Affairs
Michael S. Mares

Ronald D. Webb

Vice President, Chief Human Resource Officer

Greg A. Milleman

Vice President, Rates and Regulatory Affairs

Michelle R. Mortensen

Vice President, Corporate Secretary and Chief of Staff

Daryl L. Osby

Vice President, Emergency Preparedness, Safety, and Security

Elissa Y. Ouyang

Vice President, Facilities, Fleet, and Procurement

Shilen M. Patel

Chief Business Development Officer and Vice President, Texas Water Service

Todd K. Peters

Chief Engineering Officer

Thomas A. Scanlon

Corporate Controller and Principal Accounting Officer

Justin B. Skarb

Vice President, Government and Community Affairs

Ronald D. Webb

Vice President, Chief Human Resource Officer

Corporate Information

To Transfer Stock

A change of ownership of shares (such as when stock is sold or gifted or when owners are deleted from or added to stock certificates) requires a transfer of stock. To transfer stock, the owner must complete the assignment on the back of the certificate and sign it exactly as his or her name appears on the front. This signature must be guaranteed by an eligible guarantor institution (banks, stockbrokers, savings and loan associations, and credit unions with membership in approved signature medallion programs) pursuant to SEC Rule 17Ad-15. A notary’s acknowledgment is not acceptable. This certificate should then be sent to Computershare Investor Services (Computershare) by registered or certified mail with complete transfer instructions. Alternatively, the Direct Registration System can be utilized, which allows electronic share transactions between your broker or dealer and Computershare.

Annual Report for 2024 on Form 10-K

A copy of the Company’s annual report for 2024 filed with the Securities and Exchange Commission (SEC) on Form 10-K is available and can be obtained by any stockholder at no charge upon written request to the Company. The Company’s filings with the SEC can be viewed via the link to the SEC’s EDGAR system on the Company’s website.

Anticipated Dividend Dates for 2025

QUARTER DECLARATION RECORD DATE PAYMENT DATE
First January 29 February 10 February 21
Second April 30 May 12 May 23
Third July 30 August 11 August 22
Fourth October 29 November 10 November 21

Annual Meeting

The Annual Meeting of Stockholders will be held online on Wednesday, May 28, 2025, at 9:30 a.m. PT. Details of the business to be transacted during the meeting will be contained in the proxy material, which will be mailed to stockholders on or about April 16, 2025.

Computershare Investor Services

462 South 4th Street,
Suite 1600
Louisville, Kentucky 40202

Bond Registrar

U.S. Bank Trust, N.A. One California Street
San Francisco, California 94111
415.273.4580

Executive Office and Stockholder Information

California Water Service Group
Attn: Stockholder Relations
1720 North First Street
San Jose, California 95112
408.367.8200 or
800.750.8200
www.calwatergroup.com
This report contains forward-looking statements that are based on currently available information, expectations, estimates, assumptions and projections, and management’s judgment about the Company, the water utility industry, and general economic conditions. Forward-looking statements, which are identified by words such as seek, expect, intend, plan, believe, anticipate, project, will, and forecast, are not guarantees of future performance, and actual results may vary materially. Please see our 2024 Annual Report on Form 10-K for more information.
FSC logo

Acting On Our Vision

Protecting our water.
Investing in our communities.
Serving our customers.
Contributing to the greater good.
Cal Water Service Group logo, Investing for Life
1720 North First Street, San Jose, California 95112-4508
Phone: 408.367.8200 www.calwatergroup.com NYSE: CWT