Ala. Admin. Code r. 420-3-1-.59

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

Section 420-3-1-.59 - Bed And Design Construction Specifications

(1) As an alternative to a trench system, a pad or bed may be utilized. All sewage subject to this paragraph shall be pretreated to the secondary effluent standard.

(a) The total bottom area for all pads shall be computed by dividing the design flow by the loading rate found in Table 10 and rounded up to the next whole foot. The total bottom area for all beds shall be computed by dividing the design flow by the loading rate found in Table 11 and rounded up to the next whole foot.

(b) The pad shall meet the construction standard found in the manufacturer's design manual or meet the aggregate and cover standard found in 420-3-1-.58(7) Gravel Field Standard Construction Specifications. A bed shall meet the aggregate and cover standard found in 420-3-1-.58(7) Gravel Field Standard Construction Specifications.

(c) For pads not utilizing proprietary distribution, a programmable timer and control panel shall be employed to regulate the dosing frequency and volume for uniform distribution.

Ala. Admin. Code r. 420-3-1-.59

New Rule: Filed October 20, 2005; effective November 24, 2005; operative March 19, 2006.

Adopted by Alabama Administrative Monthly Volume XXXV, Issue No. 04, January 31, 2017, eff. 3/5/2017.

Adopted by Alabama Administrative Monthly Volume XLI, Issue No. 03, December 30, 2022, eff. 2/13/2023.

Previous Rule .84 was renumbered .59 per certification published December 30, 2022; effective February 13, 2023.

Author: Thad Pittman, Matthew Conner. Ken Stephens, Bob Bright

Statutory Authority:Code of Ala. 1975, §§ 22-2-2(4); 22-2-2(6); 22-10-1, et seq.; 22-26-1et seq.