Ala. Admin. Code r. 335-7-5-.20

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

Section 335-7-5-.20 - Chemicals Used In Ground Water Treatment

(1) Chemicals used in groundwater treatment, other than alum, lime, chlorine, potassium permanganate, caustic soda, soda ash, powdered activated carbon, and hydrofluosilicic acid must be approved by the Department prior to use. Systems currently using chemicals other than these and not having prior ADEM concurrence shall submit required information within six months of the effective date of these regulations. Information regarding company name, telephone number, address and chemicals supplied must be maintained in a file at the plant. All chemical manufacturers supplying chemicals to the treatment plant for the past two years shall be maintained on this list. Water Systems shall determine that the chemical or substance to be added and the proposed application rate meets the ANSI/NSF standard 60. Only products meeting these standards shall be used by supplier of water and certification that such a product meets these standards must be determined through evaluation by a program certified by the American National Standards Institute or Underwriters Laboratory. Water Systems shall provide a list of the type, name, and manufacturer, and certification document requesting departmental approval prior to use of the substance or chemical. Water treatment chemicals containing acrylamide or epichlorohydrin are prohibited from use in water treatment plants unless the system provides annually a written certification to the department that when acrylamide and/or epichlorohydrin are used to treat water, the combination of dose and monomer level does not exceed the following levels: acrylamide - 0.05% dosed at 1ppm or equivalent. Epichlorohydrin - 0.01% dosed at 20 ppm or equivalent. Name of the chemical used and daily average dose rate shall be shown on the monthly operation data report for the plant.

(2) Chemicals shall be stored in containers as received or otherwise their containers shall be labeled to indicate the name of the chemical. Chemicals shall be controlled to prevent contamination with other chemicals and to eliminate any dangerous mixing of chemicals. Acid storage tanks must be vented to the outside atmosphere in a separate vent stack.

Author: Joe Alan Power, Edgar K. Hughes

Ala. Admin. Code r. 335-7-5-.20

May 23, 1977. Repealed and Readopted: January 4, 1989; October 31, 1990; effective December 5, 1990. (Rule was renumbered from.18 to.21.) Amended: Filed December 21, 1998; effective January 25, 1999. (Rule was renumbered from.21 to.28.) Amended: Filed November 7, 2005; effective December 12, 2005.

Rule 335-7-5-.28 was renumbered .20 as per certification filed November 7, 2005; effective December 12, 2005.

Statutory Authority:Code of Ala. 1975, §§ 22-23-1 through 22-24-12.