(a) If directed by the State Board to do so based on its determination that there is an existing or potential problem with the system's source capacity or a proposed expansion pursuant to section 64556(a)(5), a water system shall submit a Source Capacity Planning Study (Study) containing the following information:
(1) The anticipated growth of the water system over a projected period of at least ten years in terms of the population and number and type of residential, commercial, and industrial service connections to be served by the water system.
(2) Estimates of the amount of water needed to meet the total annual demand and the MDD over the projected ten-year growth period (projected system demand). Methods, assumptions, and calculations used to estimate the projected system demand shall be included.
(3) A map and description of the entire existing and proposed service area, showing:
(A) The location of each water source, including wells that are abandoned, out-of-service, destroyed, standby, or inactive;
1. Any valid water rights owned by the system for surface water sources, including information on any limitations or restrictions of those rights;
2. For a groundwater aquifer, the groundwater levels and drawdown patterns;
3. Permits or approvals for groundwater extraction if pumping from an adjudicated groundwater basin;
4. Existing and planned source pumping capability and distribution storage capacity for the system as a whole and for each pressure zone;
5. The calculated sustained well yields of existing wells if groundwater sources are used;
6. Permits, if required, for any waters proposed for use to offset potable water demand; and
7. A Source Water Assessment for each potable water source.
(B) Distribution system piping, pressure zones, hydropneumatic tanks, and reservoirs;
(C) Valves, sample taps, flow meters, unmetered service connections, and other system appurtenances;
(D) Conveyance facilities;
(E) Any flood plains in the projected service area; and
(F) The 100 year flood or highest recorded flood level, whichever is higher.
(b) If directed by the State Board to do so based on its determination that a study is out of date, a water system shall update and submit the Study to the State Board.
(c) Water systems that have submitted an Urban Water Management Plan to the Department of Water Resources pursuant to Water Code Part 2.6 commencing with section 10610, may submit a copy of that report in lieu of some or all of the requirements of subsection (a) to the extent such information is included in the plan.
Credits
Note: Authority cited: Sections 116271, 116350 and 116375, Health and Safety Code. Reference: Sections 116275, 116375 and 116555, Health and Safety Code.
1. New section filed 2-8-2008; operative 3-9-2008 (Register 2008, No. 6).
2. Change without regulatory effect amending subsections (a), (b) and (c) and amending Note filed 6-2-2015 pursuant to section 100, title 1, California Code of Regulations (Register 2015, No. 23).
3. Change without regulatory effect amending subsection (c) filed 7-12-2022 pursuant to section 100, title 1, California Code of Regulations (Register 2022, No. 28).
This database is current through 5/10/24 Register 2024, No. 19.
Cal. Admin. Code tit. 22, § 64558, 22 CA ADC § 64558
