390.
For purposes of this chapter, the following terms have the following meanings:(a) “Cost-of-service analysis” means the analysis conducted to determine water usage patterns and demands placed on the system by various customer classes.
(b) “Efficiency goal” means the long-term standards for efficient water use, as developed by the board, pursuant to Section 10609.2.
(c) “Incremental costs” means the costs of water service, including capital costs and operation and maintenance costs, that the public entity incurs directly, or by contract, as a result of the use of water by the systems’ major water users and may include any of the
following:
(1) Conservation best management practices, conservation education, irrigation controls and other conservation devices, and other demand management measures.
(2) Water system retrofitting, dual plumbing and facilities for production, distribution, and all uses of recycled water and other alternative water supplies.
(3) Projects and programs for the prevention, control, or treatment of the runoff of water from irrigation and other outdoor water uses. Incremental costs does not include the costs of stormwater management systems and programs.
(4) Securing dry year water supply arrangements.
(5) Procuring water supplies, including supply or capacity contracts for water supply rights
or entitlements.
(6) Energy costs for water delivery.
(d) “Major water user” means the top 10 percent of water users in a given customer class since the last cost of service analysis.
(e) “Public entity” means a city, whether general law or chartered, county, city and county, special district, agency, authority, any other municipal public corporation or district, or any other political subdivision of the state that provides retail water service and that is an urban water supplier, as defined in Section 10617.
390.1.
(a) Whenever a public entity conducts a cost-of-service analysis, that entity shall identify both of the following:(1) The incremental costs incurred by the major water users in the single-family residential class.
(2) The incremental costs that would be avoided if major water users met a specified efficiency goal.
(b) The incremental costs incurred by the major water users, as identified pursuant to subdivision (a), shall be made publicly available by posting the information on the public entity’s internet website.