Alabama Administrative Code
Title 420 - ALABAMA STATE BOARD OF HEALTH
Chapter 420-3-1 - ONSITE SEWAGE TREATMENT AND DISPOSAL
General Requirements
Section 420-3-1-.09 - Engineer Design Required
Universal Citation: AL Admin Code R 420-3-1-.09
Current through Register Vol. 43, No. 02, November 27, 2024
(1) The following systems or site characteristics shall require a design by an engineer:
(a) The system has a design flow of
more than 1,800 gpd of sewage. See
420-3-1-.52 Design Flow and
Wastewater Concentrations.
(b) The
system will serve a food establishment that is classified as a Priority
Category 3 or 4 establishment by the Board's Rules for Food Establishment
Sanitation, Chapter 420-3-22, Ala. Admin. Code.
(c) The system will receive high strength
sewage. These systems do not have to use advanced treatment unless the design
flow is over 1,800 gpd, but the field shall be sized according to
420-3-1-.55 Gravel Field Standard
EDF Sizing for Establishments.
(d)
The site characteristics prohibit the use of a Conventional OSS. See Table 7
and Table 18.
(e) The site
characteristics set forth under
420-3-1-.51 Lot Modification -
Planned and Unplanned stipulate engineer involvement.
(f) The lot is smaller than the minimums set
out in 420-3-1-.10 Minimum Lot Size
Requirements.
(g) Slopes over 25
percent in the EDF area.
(h) A
system that does not meet the definition of a Conventional OSS.
(i) An Innovative EDS.
Previous Rule .08 was renumbered .09 per certification published December 30, 2022; effective February 13, 2023.
Authors: 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.
Disclaimer: These regulations may not be the most recent version. Alabama may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google
Privacy Policy and
Terms of Service apply.
