Cal. Code Regs. tit. 22 § 60301.320

Current through Register 2024 Notice Reg. No. 49, December 6, 2024

Section 60301.320 - Filtered Wastewater

"Filtered wastewater" means an oxidized wastewater that meets the criteria in subsection (a) or (b):

(a) Has been coagulated and passed through natural undisturbed soils or a bed of filter media pursuant to the following:

(1) At a rate that does not exceed 5 gallons per minute per square foot of surface area in mono, dual or mixed media gravity, upflow or pressure filtration systems, or does not exceed 2 gallons per minute per square foot of surface area in traveling bridge automatic backwash filters; and

(2) So that the turbidity of the filtered wastewater does not exceed any of the following:

(A) An average of 2 NTU within a 24-hour period;

(B) 5 NTU more than 5 percent of the time within a 24-hour period; and

(C) 10 NTU at any time.

(b) Has been passed through a microfiltration, ultrafiltration, nanofiltration, or reverse osmosis membrane so that the turbidity of the filtered wastewater does not exceed any of the following:

(1) 0.2 NTU more than 5 percent of the time within a 24-hour period; and

(2) 0.5 NTU at any time.

Cal. Code Regs. Tit. 22, § 60301.320

1. New section filed 11-2-2000; operative 12-2-2000 (Register 2000, No. 44).

Note: Authority cited: Section 13521, Water Code. Reference: Sections 13520 and 13521, Water Code.

1. New section filed 11-2-2000; operative 12-2-2000 (Register 2000, No. 44).