Filtered Wastewater.

22 CCR 60301.320

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22 CCR 60301.320

§ 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.

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