18 AAC 72.660 - After-the-fact registration

If an alternative onsite wastewater system not requiring plan approval was not registered in accordance with 18 AAC 72.650(c), a registered engineer may submit for the department's assessment an after-the-fact registration, or otherwise document a changed use or condition by

(1) submitting the registration fee required under 18 AAC 72.955;

(2) submitting an adequacy report that is sealed by the registered engineer responsible for performing the evaluation; the adequacy report must include

(A) a description of the facility served including calculations for total design flow;

(B) a description of the methods and procedures used to verify that the system conforms to the requirements of 18 AAC 72.601 - 18 AAC 72.660, and the ability of the system to accept the hydraulic and organic loads from the facility it serves;

(C) information, as can be fairly determined or reasonably assumed, regarding

(i) the size, material, and functionality of all treatment components;

(ii) the assessment of the final disposal area; and

(iii) site-specific conditions, including a classification of soils typically encountered in the area or a test hole log verifying soil conditions, the depth to groundwater table, and the general topography of the area;

(D) results of laboratory analysis for samples collected from various stages of treatment, as applicable, to demonstrate system performance; and

(E) a site plan drawn to a standard engineering scale, showing the developed features on the lot, the onsite wastewater system location based on visible features such as cleanouts and monitor tubes, the likely locations of subsurface components, and all nearby public and private water sources and surface water; and

(3) submitting a request for a waiver in accordance with 18 AAC 72.640 if the system does not meet the construction requirements of 18 AAC 72.630 or the separation distance requirements listed in 18 AAC 72.620.

Notes

18 AAC 72.660

Eff. 10/1/2023, Register 247, October 2023

Authority:AS 44.46.020

AS 46.46.025

AS 46.03.020

AS 46.03.050

AS 46.03.100