Cal. Code Regs. tit. 22, § 60307
(a) Recycled water used for the following shall be disinfected tertiary recycled water, except that for filtration being provided pursuant to Section 60301.320(a) coagulation need not be used as part of the treatment process provided that the filter effluent turbidity does not exceed 2 NTU, the turbidity of the influent to the filters is continuously measured, the influent turbidity does not exceed 5 NTU for more than 15 minutes and never exceeds 10 NTU, and that there is the capability to automatically activate chemical addition or divert the wastewater should the filter influent turbidity exceed 5 NTU for more than 15 minutes:
(b) Recycled water used for the following uses shall be at least disinfected secondary-23 recycled water:
Note: Authority cited: Section 13521, Water Code. Reference: Sections 13520 and 13521, Water Code.
1. Repealer and new section filed 11-2-2000; operative 12-2-2000 (Register 2000, No. 44).