(a)
All construction on public water systems operated by a mutual water company shall be designed and constructed to comply with the applicable California Waterworks standards, as provided in Chapter 16 (commencing with Section 64551) of Division 4 of Title 22 of the California Code of Regulations.(b)
A mutual water company that operates a public water system shall maintain a financial reserve fund for repairs and replacements to its water production, transmission, and distribution facilities at a level sufficient for continuous operation of facilities in compliance with the federal Safe Drinking Water Act (42 U.S.C. Sec. 300f et seq.) and the California Safe Drinking Water Act (Chapter 4 (commencing with Section 116270) of Part 12 of Division 104 of the Health and Safety Code).
Source:
Section 14301.3, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=CORP§ionNum=14301.3..