Permit Requirements for On-Site Wastewater Disposal Systems
An on-site wastewater disposal system may not be installed or modified within the Municipality of Anchorage without first obtaining a permit from On-Site Water and Wastewater Program. The original permit application form must bear the original signature of the applicant or an authorized representative.
As specified in Anchorage Municipal Code (AMC) Section 15.65.030, the application must include the following:
- A site plan drawn to scale and bearing the original stamp and signature of a registered Civil Engineer. This site plan must show:
- The location of the on-site well and all components of the on-site wastewater disposal system. If the permit application is for the development of a new lot, the replacement disposal site shall also be shown.
- Measured dimensions of the on-site wastewater disposal field and distribution piping.
- Measured distances to all wastewater disposal systems, wells, surface water bodies or drainage courses, roads, property lines and structures within 200 feet of the location of any existing or proposed on-site wastewater disposal system.
- The locations of all soils, percolation or water table tests.
- A description of the topography, areas of excessive slope, and the extent of slopes and drainage patterns within 100 feet of any part of the system or portion of the lot intended for use for on-site wastewater disposal.
- A design of the on-site wastewater disposal system bearing the original stamp and signature of a registered Civil Engineer.
- The results of soils, percolation and water table tests. For systems to be constructed on newly developed lots, tests must be conducted and reported for both the original and replacement wastewater system sites. Soil tests must be logged on an approved MOA form bearing the original stamp and signature of a registered Civil Engineer.
- A narrative description of probable impacts to adjacent properties, giving consideration to wells, wastewater systems, reserved spaces and drainage.
The department may conduct site inspections or require submission of additional information prior to the issuance of any permits.
The department will determine, after review of the application and test results as well as available historic data, whether the proposed system complies with the requirements of AMC Chapter 15.65 Wastewater Disposal. The permit will be denied if the code requirements are not met. The permit may also be denied if the proposed development would have the effect of prohibiting future development of an adjacent lot or parcel.
The On-Site Water and Wastewater Program will coordinate permit review with other appropriate municipal and state agencies, and may refuse to issue a permit based on negative comment from any other agency, or violation of any other state or local code or provision.