Issue · Environment

Environment (Water Quality)

Every environment bill, vote, and legislator stance in California, automatically classified by Maddy, our AI policy reader.

Total bills
21
2025-2026 Regular Session
Top supporter
Diane Papan
100% support rate
Top opponent
Stan Ellis
0% support rate
Ranked legislators
10
5 support · 5 oppose
Key legislators

Who's moving water quality in California

Legislators moving water quality in California
Legislator Party Stance Support rate Votes
Diane Papan
Diane Papan House · District 21
D
Strong +
100% 8
Damon Connolly
Damon Connolly House · District 12
D
Strong +
100% 7
Rebecca Bauer-Kahan
Rebecca Bauer-Kahan House · District 16
D
Strong +
100% 7
Caroline Menjivar
Caroline Menjivar Senate · District 20
D
Strong +
100% 6
Catherine Blakespear
Catherine Blakespear Senate · District 38
D
Strong +
100% 6
Stan Ellis
Stan Ellis House · District 32
R
Strong −
0% 6
Suzette Valladares
Suzette Valladares Senate · District 23
R
Strong −
0% 6
Kelly Seyarto
Kelly Seyarto Senate · District 32
R
Strong −
0% 5
Leticia Castillo
Leticia Castillo House · District 58
R
Strong −
0% 5
Megan Dahle
Megan Dahle Senate · District 1
R
Strong −
0% 5
Showing 1–10 of 21 bills

All environment bills

in committee · California · Assembly May 14, 2026

AB 2100: Organic waste: manure management: interagency task force: project approval.

(1) The California Global Warming Solutions Act of 2006 establishes the State Air Resources Board as the state agency responsible for monitoring and regulating sources emitting greenhouse gases. The act requires the state board to adopt rules and regulations to achieve the maximum technologically feasible and cost-effective greenhouse gas emissions reductions to ensure that the statewide greenhouse gas emissions are reduced to at least 40% below the statewide greenhouse gas emissions limit, as defined, no later than December 31, 2030. Existing law requires the state board to prepare and approve a scoping plan for achieving the maximum technologically feasible and cost-effective reductions in greenhouse gas emissions, as provided, and to update the scoping plan at least once every 5 years. Existing law requires the state board to develop a comprehensive strategy to reduce emissions of short-lived climate pollutants in the state. Existing law requires the state board, in consultation with the Department of Food and Agriculture, to adopt regulations to reduce methane emissions from livestock manure management operations and dairy manure management operations by up to 40% below the dairy sector's and livestock sector's 2013 levels by 2030. This bill would require the Department of Food and Agriculture to convene an interagency task force to evaluate the role of alternative manure management practices in achieving certain goals and to make specified findings and recommendations based on its evaluation. The bill would require the task force to include representatives from specified state agencies, external scientific and technical experts, and other stakeholders, as provided. The bill would require the task force to coordinate scenario modeling of alternative manure management practices adoption within the dairy and livestock industry under different policy and funding conditions, assess how alternative manure management practices can help the state meet groundwater sustainability plans, water quality plans, and nature-based climate solutions, and facilitate interagency data sharing, technical consultation, and identification of research needs, as provided. The bill would authorize the state board to incorporate the task force's findings and recommendations into updates to the above-described comprehensive strategy, the 2027 update to the scoping plan, and other planning documents as appropriate. (2) Existing law requires the Department of Resources Recycling and Recovery, in partnership with various government agencies, to identify and recommend actions to address, with regard to both state agencies and the federal government, the permitting and siting challenges associated with composting and anaerobic digestion, and to encourage the continued viability of the state's organic waste processing and recycling infrastructure. This bill would require the Department of Food and Agriculture to convene relevant government agencies, with input from the regulated community, to create an efficient and effective process for approving new projects that manage livestock and dairy manure through on-farm composting or by selling or transferring manure to offsite users.
passed both · California · Assembly Aug 30, 2026

AB 2032: Fish and wildlife: invasive mussels: golden mussels.

(1) Existing law, until January 1, 2030, generally prohibits a person from possessing, importing, shipping, or transporting in the state, or from placing, planting, or causing to be placed or planted in any water within the state, invasive mussels, as defined. Existing law requires a public or private agency that operates a water supply system to cooperate with the Department of Fish and Wildlife (department) to implement measures to avoid infestation by invasive mussels and to control or eradicate any infestation that may occur in a water supply system, and, if invasive mussels are detected, to prepare and implement a plan, as specified, to control or eradicate invasive mussels within the system (control plan) . Existing law prohibits the importation, transportation, possession, or live release of specified wild animals, except under a revocable, nontransferable permit, known as a restricted species permit, issued by the department, in cooperation with the Department of Food and Agriculture, and only if certain requirements are met. This bill would exempt from the requirement to obtain a restricted species permit for invasive mussels a public or private agency that operates a water supply system and has submitted a control plan to the department for maintenance, operational, and research activities within the water supply system, as specified. The bill would exempt from the requirement to obtain a restricted species permit for dead invasive mussels a public or private agency that operates a water supply system and has submitted a control plan to the department for research, outreach, education, species verification, training, or other purposes deemed by the department to be in the best interest of the state. The bill would provide that these exemptions remain in effect for a particular public or private agency until the department determines the agency's control plan does not meet the statutory requirements for control plans or approves the control plan. This bill would require the department's Invasive Species Program to develop, by April 1, 2027, voluntary guidance for public and private agencies that operate water supply systems to develop effective control plans. The bill would also require the department's Invasive Species Program to develop and publish, by April 1, 2027, guidance for scientific research conducted by or for public and private agencies that operate water supply systems to prevent and control the spread of invasive mussels, as specified. This bill would require the department to update the spatial distribution maps of invasive mussel-infested water bodies posted on its internet website no less than quarterly based on monitoring and reported detections, as prescribed. (2) Existing law requires every manufacturer of, importer of, or dealer in any pesticide, except as specified, to obtain a certificate of registration from the Department of Pesticide Regulation before the pesticide is offered for sale. Existing law requires the Director of Pesticide Regulation to endeavor to eliminate from use in the state specified pesticides, and in carrying out this responsibility, to develop an orderly program for the continuous evaluation of all pesticides actually registered, as specified. Under existing law, the State Water Resources Control Board and the 9 California regional water quality control boards regulate water quality and prescribe waste discharge requirements in accordance with the Porter-Cologne Water Quality Control Act and the national pollutant discharge elimination system permit program. This bill would require, in response to an invasive species threat, including, but not limited to, the threat of golden mussels, the department, state board, and regional boards to work with state and local agencies in order to quickly and efficiently respond to the threat. The bill would require the department and state board to identify any tools available to assist a state or local agency in rapidly responding to the invasive species threat and to help identify any existing processes that allow for the rapid use of any tool that could be used to address the invasive species threat and enables a streamlined or faster administrative or procedural process. The bill would require the state board, if necessary, to help coordinate efforts between the regional boards in response to a threat of an invasive species. (3) This bill would declare that it is to take effect immediately as an urgency statute.
Sub-Topics Water Quality Wildlife
passed both · California · Assembly Aug 25, 2026

AB 2777: State Water Pollution Control Revolving Fund program: loans: outdoor eating areas: water reuse.

(1) Existing law establishes the State Water Pollution Control Revolving Fund program, pursuant to which state and federal funds are continuously appropriated from the State Water Pollution Control Revolving Fund to the State Water Resources Control Board for loans and other financial assistance for purposes related to the federal Clean Water Act. Existing law establishes the State Water Pollution Control Revolving Fund Administration Fund (administration fund) to provide funds, upon appropriation by the Legislature, to be expended by the state board for payment of the reasonable costs of administering the State Water Pollution Control Revolving Fund. Existing law authorizes the state board to assess an annual charge for financial assistance services, not to exceed 1% of the financial assistance repayment amount and computed according to the true interest cost method, as provided, and requires those annual charges to be deposited into the administration fund. Existing law authorizes the financial service rate to be applied at any time during the term of the financial assistance and requires the rate to remain unchanged for the duration of the financial assistance. Existing law prohibits the financial assistance rate from increasing the financial assistance repayment amount after being applied. Existing law requires the state board to, at least once each fiscal year, adjust the financial assistance service rate. Existing law requires the state board to set the total amount of revenue collected each year through the annual charges at an amount that is equal as practicable to the appropriation amount set forth in the annual Budget Act. This bill would additionally authorize the state board to assess fees in place of an annual charge for financial assistance and would authorize the fees or annual charge to be assessed at any rate as permitted by federal law. The bill would delete the provision prohibiting the changing of the financial assistance rate during the financial assistance and the increasing of the financial assistance repayment amount. The bill would delete the requirement relating to the appropriation amount set forth in the annual Budget Act. (2) Existing law authorizes moneys in the State Water Pollution Control Revolving Fund to be used for loans that meet specified requirements, including that the loans be made at or below market interest rates and, to the extent permitted by federal law, requiring that the combined interest and loan service rate be set at a rate not to exceed 50% of the interest rate paid by the state on the most recent sale of state general obligation bonds, as provided. Existing law requires the combined interest and loan service rate to be 0% for certain applicants who provide matching funds. This bill would delete the provision requiring that the combined interest and loan service rate be set at a rate not to exceed 50% of the interest rate paid by the state on the most recent sale of state general obligation bonds. The bill would require the loans to be made at below market interest rates. (3) Existing law prohibits a person or public agency, including a state agency, city, county, city and county, district, or any other political subdivision of the state, from using water from any source of quality suitable for potable domestic use for nonpotable uses, including, among other locations, parks, if suitable recycled water is available, as provided. Existing law provides that incidental amounts of spray, mist, or runoff are to be permitted to enter outdoor eating areas of parks and open spaces when irrigated with disinfected tertiary treated recycled water that complies with a specified regulation regarding irrigation. This bill would instead provide that incidental runoff is allowed to enter outdoor eating areas of parks and open spaces when irrigated with disinfected tertiary treated recycled water that complies with a specified regulation regarding irrigation. The bill would define "incidental runoff" as unintended amounts of runoff, such as unintended, minimal overspray from sprinklers that escapes the area of intended use.
died · California · Senate May 14, 2026

SB 1258: Hazardous waste: site remediation: residential suitability guidelines.

Existing law authorizes, when a release of waste occurs and remedial action is required, a responsible party, as defined, to request a local officer to supervise the remedial action if the site is not already overseen by the Department of Toxic Substances Control or a regional water quality control board. Existing law authorizes the department or a regional water quality control board to retain or assume oversight authority from a local officer, as specified. This bill would require the State Water Resources Control Board, working jointly with the department and in consultation with the Office of Land Use and Climate Innovation, to develop guidelines for developers and for agencies overseeing development-specific site remediations and making determinations of site suitability, as provided. The bill would require the board, in conjunction with the department, to develop thresholds of significance for contaminants from different sources and for different future uses, as provided. The bill would specify that sites with contamination above those thresholds shall be deemed not suitable for residential use.
passed · California · Assembly Aug 27, 2026

AB 2322: Water discharge: commercial, industrial, or institutional sites.

Under existing law, the State Water Resources Control Board and the 9 California regional water quality control boards prescribe waste discharge requirements for the discharge of stormwater by municipalities and industries in accordance with the federal national pollutant discharge elimination system (NPDES) permit program, established by the federal Clean Water Act and the Porter-Cologne Water Quality Control Act. Under existing law, the state board and the 9 regional water quality control boards issue permits for the discharge of stormwater from municipal separate storm sewer systems (MS4s) . For purposes of issuing permits for the discharge of stormwater from MS4s, this bill define "commercial, industrial, or institutional site" or "CII site" as a privately owned parcel or contiguous parcels of land that are commercial, industrial, or institutional based on the appropriate county tax assessor land use codes, as specified.
Sub-Topics Water Quality
in committee · California · Assembly May 14, 2026

AB 2447: Water: Nitrogen Pollution Reduction Act.

Under existing law, the Porter-Cologne Water Quality Control Act, the State Water Resources Control Board and the California regional water quality control boards are the principal state agencies with authority over matters relating to water quality. The act requires the state board to formulate and adopt state policies for water quality control and requires the regional boards to adopt regional water quality control plans in compliance with the state policies. Under the act, the state board and the regional boards prescribe waste discharge requirements for the discharge of waste that could affect the quality of the waters of the state. This bill would require the State Water Resources Control Board to require the regional boards to update the Irrigated Lands Regulatory Program in order to reduce nitrogen waste discharges from commercial irrigated agricultural areas, as provided. The bill would require the regional boards to adopt revised orders with waste discharge requirements on or before January 1, 2028, that are sufficient to meet certain reductions in nitrogen waste discharges. The bill would require the state board to, on or before July 1, 2027, publish both a list of standardized crop names and categories, and a statewide methodology for calculating, and field-level reporting of, nitrogen balances for croplands, including nitrogen fertilizer applications and nitrogen discharges, that account for available soil nitrogen, to be used by the regional boards and incorporated into the revised orders. The bill would require the state board, on or before January 1, 2031, and in coordination with the regional boards, to submit a report to the relevant policy committees of the Legislature on progress achieved in implementing these requirements, including data on the extent of progress made toward reducing nitrogen waste discharges, as provided.
Sub-Topics Water Quality
passed both · California · Assembly Aug 26, 2026

AB 2218: Water policy: California Native American tribes.

Existing law establishes the sovereignty of the state. This bill would require the state government to support California Native Americans to maintain cultural and linguistic traditions, practice ecosystem stewardship, and engage in good faith government-to-government consultations with all California Native American tribes regarding policies that may affect tribal communities. Existing law establishes various state water policies, including the policy that the use of water for domestic purposes is the highest use of water and the human right to water. Existing law requires the State Water Resources Control Board to act upon all applications for a permit to appropriate water. This bill would declare that it is the established policy of the state to recognize and address the inequities, as described, inflicted upon all California Native American tribes through financial assistance, protection of tribal beneficial uses, consultation on water projects, plans, and policies, and incorporation of indigenous knowledge to restore and protect ecosystems. The bill would require specified state agencies, including the State Water Resources Control Board, regional water quality control boards, and the Natural Resources Agency, to incorporate this policy when revising, adopting, or establishing policies, regulations, permits, or grant criteria to address identified inequities. The bill would require those state entities to identify and offer financial assistance to the tribes consistent with existing legal and policy requirements for financial assistance programs. If there is a dispute between a California Native American tribe and one of those state agencies over the implementation of that policy, the bill would require that matter to be brought before the Governor's Office of Tribal Affairs for mediation before the state agency action is challenged in court and would specify procedures and timelines for mediation, as provided. Existing law authorizes the board to conduct investigations and to issue information orders in administering water rights, as provided. The bill would require the state board, in furtherance of an investigation and upon request, to consult with a tribe whose ancestral territory includes the water body or water bodies at issue for the claimed riparian or appropriative right.
Sub-Topics Water Quality Tags Tribal Nations
signed · California · Senate Jul 2, 2026

SJR 13: Transboundary flow pollution: United States-Mexico-Canada Agreement.

This measure would request the United States, at the 2026 joint review of the United States-Mexico-Canada Agreement (USMCA) , to secure and publicly adopt measurable and sustained commitments from the parties to eliminate chronic transboundary sewage discharges into the Tijuana River watershed and the flow of untreated sewage, industrial effluent, and toxic pollutants through the New River from Mexicali into the County of Imperial. The measure would further request that the United States commit to automatic nonrenewal of the USMCA should there be a failure of establishing commitments, benchmarks, and timelines relating to specific numeric discharge-reduction benchmarks for both the Tijuana River watershed and the New River, investment into and enforceable timelines for completion of wastewater infrastructure projects, and annual public reporting on compliance.
Sub-Topics Water Quality
in committee · California · Senate May 14, 2026

SB 1081: Waste discharge requirements: minimum penalties: exception: publicly owned treatment works.

Under existing law, the State Water Resources Control Board and the 9 California regional water quality control boards regulate water quality and prescribe waste discharge requirements in accordance with the Porter-Cologne Water Quality Control Act (act) and the national pollutant discharge elimination system permit program. The act requires mandatory minimum penalties to be assessed for serious violations, as defined, relating to waste discharge requirements, and for certain violations relating to waste discharge requirements and reports whenever there are 4 or more violations in a period of 6 consecutive months, except as provided. The act authorizes the state board or regional board, in lieu of assessing all or a portion of those mandatory minimum penalties against a publicly owned treatment works serving a small community, to instead require the publicly owned treatment works to spend an equivalent amount towards the completion of a compliance project proposed by the publicly owned treatment works if the state board or regional board make specified findings. The act defines "a publicly owned treatment works serving a small community" for these purposes to mean a publicly owned treatment works serving a population of 20,000 persons or fewer or a rural county, with a financial hardship as determined by the state board after consideration of specified factors. This bill would expand the authorization for the state board or regional board to require funding of a compliance project in lieu of the otherwise mandatory penalty to apply to a publicly owned treatment works serving a population of 3,000 persons or fewer, with a financial hardship, determined by the state board, within the 10 years preceding the assessment of the penalty.
Sub-Topics Water Quality
passed · California · Senate Aug 30, 2026

SB 1259: Refineries: decommissioning and remediation: cost estimates.

Existing law establishes the State Water Resources Control Board in the California Environmental Protection Agency (CalEPA) and the California regional water quality control boards which prescribe waste discharge requirements in accordance with the Federal Water Pollution Control Act and the Porter-Cologne Water Quality Control Act. Existing law, the Petroleum Industry Information Reporting Act of 1980, requires refiners, as defined, to report monthly to the State Energy Resources Conservation and Development Commission (Energy Commission) , for each of their refineries, specified information, and requires that any confidential information pertinent to the responsibilities of the Energy Commission, as provided, which is obtained by another state agency be available to the Energy Commission and be treated in a confidential manner. This bill would require, no later than December 31, 2028, every refiner, as defined for purposes of the bill, to submit to CalEPA a retirement plan setting forth information concerning decommissioning and site remediation for every refinery it owns, operates, or controls, as provided. The bill would require the CalEPA, no later than 6 months following the submission of the retirement plan, to review the retirement plan for completeness and reasonableness and to make a determination as to whether the retirement plan complies with the requirements imposed by the bill. The bill would require CalEPA, if it determines that the retirement plan complies with the bill's requirements, to make the retirement plan available on CalEPA's internet website for public comments for not less than 45 days. The bill would authorize CalEPA to require further revisions to the retirement plan after the public comment period, as provided, before it is deemed final. The bill would require CalEPA, after CalEPA has determined that no further revisions are necessary, to promptly post the final retirement plan on its internet website. This bill would require a refiner who, on or after January 1, 2026, gives notice of intent to permanently shut down, shut down to reconfigure, or sell a refinery in a transaction that may result in a refinery shutting down or reconfiguring, as provided, to submit either the required retirement plan, or, if a final retirement plan has been released, an update of the retirement plan within a specified timeframe, as provided. The bill would require, on or before December 31, 2027, CalEPA to publicly provide an overview of the methods, costs, and timelines associated with soil and groundwater remediation that have been employed at refineries that have undergone decommissioning and remediation and to update the overview, as provided. This bill would make information filed pursuant to the above-described provisions confidential information, as provided. The bill would require a refiner to file the final retirement plan concurrently with the Energy Commission and the Division of Occupational Safety and Health. The bill would authorize CalEPA, the Energy Commission, and the Division of Occupational Safety and Health to share the information with the Legislature, any governmental agency, or a local government, including an air pollution control district or an air quality management district, only if the Legislature, the governmental agency, or the local government that receives the information agrees to maintain the confidentiality of the information. The bill would further require any information that is, or may be, accessible by the public, as provided, by CalEPA, the Department of Toxic Substances Control, a certified unified program agency, or a local government, to be made publicly available even if that information is also contained in the retirement plan. This bill would require, on or before December 31, 2027, CalEPA, in coordination with the Energy Commission, to compile a survey of existing local, state, and federal statutory and regulatory requirements applicable to refiners concerning decommissioning, closure, financial assurance, and site remediation obligations, as provided, for a specified purpose. This bill would require CalEPA, no later than one year after the retirement plans are deemed final, to publish publicly on CalEPA's internet website a report assessing the total decommissioning and remediation liabilities for refineries in the state, and identify opportunities for greater transparency prior to the closure notice, as provided. Existing constitutional provisions require that a statute that limits the right of access to the meetings of public bodies or the writings of public officials and agencies be adopted with findings demonstrating the interest protected by the limitation and the need for protecting that interest. This bill would make legislative findings to that effect.
Showing 1 to 10 of 21 bills
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