Ala. Admin. Code r. 335-7-5-.19
Treatment processes, including filtration, are required to reduce contaminant levels to meet existing standards. Coating materials inside the filter shall not impart an undesirable taste, odor or contribute to an increase in the concentration of any regulated contaminants to the water. A minimum of two filter units shall be installed. Provisions shall be made for the control of the filtration and wash rates, for an adequate supply of backwash water and for a separate filter-to-waste system for each filter. Filtration rates shall not exceed 4 gpm/sf, unless approved by the Department.
Author: Joe Alan Power, Edgar K. Hughes
Ala. Admin. Code r. 335-7-5-.19
Rule 335-7-5-.27 was renumbered .19 as per certification filed November 7, 2005; effective December 12, 2005.
Statutory Authority:Code of Ala. 1975, §§ 22-23-1 through 22-24-12.