California Water Service, commonly known as Cal Water, is a leading provider of water utility services in the United States. Headquartered in San Jose, California, the company operates across several major regions, including the San Francisco Bay Area, Southern California, and the Central Coast. Founded in 1926, Cal Water has established itself as a key player in the water industry, focusing on delivering high-quality water and wastewater services to residential and commercial customers. With a commitment to sustainability and innovation, Cal Water offers a range of core services, including water distribution, treatment, and conservation programmes. The company is recognised for its proactive approach to water management and customer service, positioning itself as a trusted resource in the communities it serves. Notable achievements include its efforts in water conservation and infrastructure improvements, which have solidified its reputation as a leader in the water utility sector.
How does California Water Service's carbon action stack up? DitchCarbon scores companies based on their carbon action and commitment to reducing emissions. Read about our methodology to learn more.
Mean score of companies in the Steam and Hot Water Supply industry. Comparing a company's score to the industry average can give you a sense of how well the company is doing compared to its peers.
California Water Service's score of 36 is higher than 61% of the industry. This can give you a sense of how well the company is doing compared to its peers.
In 2024, California Water Service reported total carbon emissions of approximately 1.41 billion kg CO2e. This figure includes Scope 1 emissions of about 8.5 million kg CO2e, Scope 2 emissions of approximately 32.9 million kg CO2e, and Scope 3 emissions amounting to about 1.37 billion kg CO2e. The company has set a long-term commitment to develop a company-wide electric vehicle strategy, aiming to purchase 100% zero-emission passenger vehicles in California by 2035, which falls under their Scope 1 emissions reduction initiatives. The emissions data is sourced directly from California Water Service Group, with no cascading from a parent organization. The company has not committed to any near-term science-based targets (SBTi) but is actively working towards its climate commitments. The reported emissions reflect a comprehensive approach to tracking and managing their carbon footprint, aligning with industry standards for climate accountability.
Access structured emissions data, company-specific emission factors, and source documents
| 2020 | 2021 | 2022 | 2023 | 2024 | |
|---|---|---|---|---|---|
| Scope 1 | 5,953,000 | 0,000,000 | 0,000,000 | 0,000,000 | 0,000,000 |
| Scope 2 | 29,093,000 | 00,000,000 | 00,000,000 | 00,000,000 | 00,000,000 |
| Scope 3 | 52,693,000 | 000,000,000 | 000,000,000 | 000,000,000 | 000,000,000 |
Climate goals typically focus on 2030 interim targets and 2050 net-zero commitments, aligned with global frameworks like the Paris Agreement and Science Based Targets initiative (SBTi) to ensure alignment with global climate goals.
California Water Service has not publicly committed to specific 2030 or 2050 climate goals through the major frameworks we track. Companies often set interim 2030 targets and long-term 2050 net-zero goals to demonstrate measurable progress toward decarbonization.


Common questions about California Water Service's sustainability data and climate commitments