Ala. Admin. Code r. 335-6-20-.22

Current through Register Vol. 43, No. 1, October 31, 2024

Section 335-6-20-.22 - Reliability And Redundancy

All reclaimed water reuse systems shall meet the following reliability and redundancy requirements for reclaimed water:

(1) Treatment systems shall provide the following back-up systems:

(a) Another permitted disposal option, and/or;

(b) Diversion to adequately lined reject water storage capable of storing three days of flow at the average daily design flow of the treatment system.

(2) An alternative back-up system must be automatically activated if turbidity exceeds or chlorine residual drops below the instantaneous required value when entering the distribution system for more than five minutes. The maximum number of times a facility may exceed on this basis is twice in one week, and such exceedance(s) shall be immediately reported to the Department. Failure to report and exceeding more than twice in one week are sufficient grounds for the Department to require that the system be shut down for inspection and repair. In lieu of an alternate back-up system, an automated system to stop flow may be implemented.

(3) Redundant monitoring equipment and automatic by-pass equipment to the reject pond must be provided, as applicable.

(4) Standby power sufficient to maintain all treatment and distribution works or to meet the requirements for an alternative back-up system, as applicable, shall be required for the reclaimed water reuse facilities.

Ala. Admin. Code r. 335-6-20-.22

Adopted by Alabama Administrative Monthly Volume XXXIII, Issue No. 11, August 31, 2015, eff. 9/29/2015.

Author: Nicholas Caraway

Statutory Authority:Code of Ala. 1975, §§ 22-22-1 to 22-22-14; §§ 22-22A-1 to 22-22A-16et seq., as amended.