Section 18 AAC 72.560 - After-the-fact registration or approval(a) If a conventional onsite wastewater system was not registered in accordance with 18 AAC 72.550, a person may submit for the department's assessment an after-the-fact registration, or otherwise document a changed use or condition of a conventional onsite wastewater system 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) an assertion that the system as installed is protective of public health, public and private drinking water systems, and the environment;(B) a description of the methods and procedures used to verify that the system conforms to the construction requirements of 18 AAC 72.530, the separation distance requirements of 18 AAC 72.520, 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) septic tank size, material, compartments, and access to the tank for maintenance;(ii) the type of soil absorption system and approximate size;(iii) the classification of soils typically encountered in the area or a test hole log verifying soil conditions;(iv) depth to the seasonal high groundwater and verification that vertical separation distance requirement is met; and(v) the general topography of the area, including any slopes exceeding 25 percent and cut banks;(D) information on the design flows with basis used for estimation; 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 location of subsurface components, and all nearby public and private wells and surface water; and(3) submitting a request for a waiver in accordance with 18 AAC 72.540 if the system does not meet the construction requirements of 18 AAC 72.530 or the separation distance requirements listed in 18 AAC 72.520.(b) If a conventional wastewater system was installed without prior department approval as required under 18 AAC 72.515 or did not obtain operational approval in accordance with 18 AAC 72.240, a person may request final operational approval of a conventional wastewater system by submitting the plan review fee required under 18 AAC 72.955, with reports and plans signed and sealed by a registered engineer that (1) evaluates the system for conformance with this chapter;(2) to the extent practicable, addresses the information as required under 18 AAC 72.515(b)(1) - (3);(3) includes a site plan that shows the developed facility, the conventional wastewater system location based on visible features such as cleanouts and monitor tubes, the likely locations of below ground components, and all nearby public and private water sources and surface water;(4) describes the methods and procedures used to verify the system is capable of accepting the hydraulic and organic load from the facility it serves;(5) if the engineer cannot fairly determine or reasonably assume details of the system construction, or otherwise provide all information as required under (2) of this subsection, explains or submits reasons why the information cannot be included; and(6) includes a statement by the registered engineer responsible for evaluating the system that asserts that the system, as installed and operating, is protective of public health, public and private water systems, and the environment.Eff. 10/1/2023, Register 247, October 2023Authority:AS 44.46.020
AS 44.46.025
AS 46.03.020
AS 46.03.050
AS 46.03.100