1. (a) Suppliers shall calculate system-specific standards for real water loss pursuant to section 982.

   1. (2) Suppliers that own and operate multiple systems shall calculate an aggregate annual water loss budget (SB_{water loss}) as described in paragraph (1) for each system and then by summing the estimated efficient water loss budgets associated with each system. This formula is expressed mathematically as follows, with B_{water loss for system (i)} referring to the water loss budget for system i in the set of all the systems owned and operated by the supplier (i is the summation index):

      

   (b)(1) Each year, suppliers that own and operate a single system shall calculate their water loss budget (B_{water loss}), in gallons, by multiplying the applicable water loss standard (S_{water loss}) calculated pursuant to section 982 by the number of days in the year, and, depending on the units associated with the standard calculated pursuant to section 982, by either the number of total service connections (C) or the length of the distribution system, in miles (M). These formulas are expressed mathematically as follows:

   B_{water loss} = S_{water loss} x C x days in the year

   OR

   B_{water loss} = S_{water loss} x M x days in the year

2. (c) Prior to a supplier's initial compliance deadline specified in section 981, the supplier's water loss budget may, alternatively, be equal to its previous year's real water losses reported in its annual water loss audit submitted to the Department pursuant to Water Code section 10608.34(c).

Note: Authority cited: Sections 1058 and 10609.2, Water Code. Reference: Article X, Section 2, California Constitution; and Sections 102, 104, 105, 350, 1122, 1123, 1124, 1846, 1846.5, 10608.12, 10608.34, 10609.2 and 10609.12, Water Code.

History

1. New section filed 9-30-2024; operative 1-1-2025 (Register 2024, No. 40).