2023 California Code › Water Code - WAT › DIVISION 7 - WATER QUALITY › CHAPTER 3 - State Water Quality Control › ARTICLE 3 - State Policy for Water Quality Control › Section 13148.

13148. (a) This section applies to the following hydrologic regions as identified in the California Water Plan: Central Coast, South Coast, San Joaquin River, Tulare Lake, and the Counties of Butte, Glenn, Placer, Sacramento, Solano, Sutter, and Yolo.
(b) Notwithstanding Article 1 (commencing with Section 116775) of Chapter 5 of Part 12 of Division 104 of the Health and Safety Code, any local agency that owns or operates a community sewer system or water recycling facility and that is subject to a finding made by a regional board pursuant to subdivision (e) may take action to control salinity input from residential self-regenerating water softeners to protect the quality of the waters of the state. A local agency may take action only by adoption of an ordinance or resolution after a public hearing. The local agency shall not consider the adoption of an ordinance or resolution until at least 30 days following the date of the public hearing on the proposed ordinance or resolution. An ordinance or resolution shall become effective 30 days from the date of adoption.
(c) Actions to control residential self-regenerating water softener salinity inputs authorized by subdivision (b) include, but are not limited to, any of the following:
(1) Require that residential self-regenerating water softeners installed within the jurisdiction of the local agency be rated at the highest efficiency commercially available and certified by NSF International or the American National Standards Institute.
(2) Require that plumbing permits be obtained prior to the installation of residential self-regenerating water softeners.
(3) Require that residential self-regenerating water softeners be plumbed to hook up to hot water only.
(4) Enact a voluntary buy-back or exchange program for residential self-regenerating water softeners, consistent with existing law. A voluntary buy-back or exchange program may be conducted in cooperation with local water treatment businesses.
(5) Require the removal of previously installed residential self-regenerating water softeners.
(6) Prohibit the installation of residential self-regenerating water softeners.
(7) Require the retrofit of clock control and demand control systems on previously installed residential self-regenerating water softeners.
(8) Require the replacement of previously installed residential self-regenerating water softeners with appliances that meet or exceed the salt efficiency rating set forth in paragraph (2) of subdivision (b) of Section 116785 of the Health and Safety Code.
(d) If a local agency adopts an ordinance or resolution to require the removal of previously installed residential self-regenerating water softeners pursuant to paragraph (5) of subdivision (c), the local agency shall make available to owners of residential self-regenerating water softeners within its service area a program to compensate the owner of the residential self-regenerating water softener for the reasonable value of the removed residential self-regenerating water softener, as determined by the local agency.
(e) Before a local agency may take action to control salinity input from residential self-regenerating water softeners pursuant to subdivision (b), a regional board with jurisdiction over a region identified in subdivision (a) shall have made a finding at a public hearing that the control of residential salinity input will contribute to the achievement of water quality objectives. The finding may be made in any of the following water quality actions adopted by a regional board:
(1) A total maximum daily load that addresses salinity-related pollutants in a water segment.
(2) A salt and nutrient management plan for a groundwater basin or subbasin.
(3) Waste discharge requirements for a local agency discharger.
(4) Master reclamation permit for a supplier or distributor of recycled water.
(5) Water recycling requirements for a supplier or distributor of recycled water.
(6) Cease and desist order directed to a local agency.
(f) The regional board making a finding pursuant to subdivision (e) shall base its finding on the evidence in the record, such as a source determination study or other appropriate studies. The standard of judicial review required for a finding made pursuant to subdivision (e) shall be the same as the standard of review required for the water quality action in which the finding is made.
(g) This section does not limit the use of portable exchange water softening appliances or limit the authority of a local agency to regulate the discharge from a centralized portable exchange tank servicing facility into the community sewer system.
(h) For purposes of this section, “residential self-regenerating water softener” means residential water softening equipment or conditioning appliances that discharge brine into a community sewer system.
(Added by Stats. 2009, Ch. 527, Sec. 2. (AB 1366) Effective January 1, 2010.)