Alaska Administrative Code
Title 18 - Environmental Conservation
Chapter 72 - Wastewater Treatment and Disposal
Article 2 - Domestic Wastewater System Plan Review
18 AAC 72.275 - Disposal systems
Universal Citation: 18 AK Admin Code 18 AAC 72.275
Current through November 28, 2024
(a) Plans for construction of a surface water outfall must include
(1) the items required to be submitted under
18 AAC 72.205;
(2) information describing how the provisions
of 18 AAC 72.050 will be
met;
(3) design calculations,
design criteria, and specifications for
(A)
design flows, waste loads, and expected effluent quality;
(B) pipe size and material;
(C) siting with respect to health hazards,
nuisance potential, and flooding;
(D) methods to control operational
variables;
(E) bedding and
backfill;
(F) anchoring systems;
and
(G) thermal protection
considerations;
(4)
specifications for the materials, methods, and techniques used to install and
secure the outfall line that will prevent structural damage to, or movement of,
the outfall as a result of wave action within the surf zone, storms, beach
logs, ice, settling, or current;
(5) if a mixing zone is requested, mixing and
dilution calculations showing that the outfall line's length, grade, orifice
size and number, depth, and distance out from lowest water level provide for
effluent dispersion and dilution sufficient to meet any discharge permit
requirements, standard sanitary engineering principles and practices, or to
otherwise comply with AS 46.03 and this chapter;
(6) for a gravity sewer extending into the
receiving waters, a manhole or clean-out at the shore end to allow access for
maintenance;
(7) a provision to
sample the effluent before the effluent mixes with the receiving waters;
and
(8) the location of any nearby
aquatic farms or commercial or subsistence shellfish, harvest areas and
information demonstrating the discharge is not a threat to these
activities.
(b) Plans for the construction of a land surface disposal system must include
(1) the items required to be submitted under
18 AAC 72.205;
(2) information describing how the provisions
of 18 AAC 72.050 will be
met;
(3) design calculations,
design criteria, and specifications for
(A)
design flows and wastewater loading rates;
(B) treatment capacities and expected
effluent quality;
(C) siting with
respect to potential for health hazards, nuisances, and flooding;
(D) assimilative capacity of the soil and
associated flora, and the ultimate impact on groundwater or surface
water;
(E) material and equipment
selection and specifications;
(F)
methods to control operational variables; and
(G) thermal protection
considerations;
(4)
documentation that the owner of the facility discharging wastewater onto the
land
(A) owns the land treatment area;
or
(B) has written authorization
from the landowner to discharge wastewater onto the land;
(5) provision to protect the land treatment
area from public access;
(6)
documentation demonstrating that the topography, hydrology, geology, and soil
characteristics of the land treatment area are adequate to protect existing and
potential water and land uses outside of the land treatment area, including
subsistence, housing, education, industry, recreation, and agriculture;
and
(7) an explanation of how the
method of discharge prevents transmission of disease.
(c) The department will consider other means of final disposal on a case-by-case basis to determine whether they are protective of public health, public and private water systems, and the environment.
Requirements for disposal systems proposing a conventional soil absorption system are addressed under 18 AAC 72.501-18 AAC 72.560 or an alternate soil absorption system are addressed under 18 AAC 72.601-18 AAC 72.660.
Authority:AS 44.46.020
AS 46.03.010
AS 46.03.020
AS 46.03.050
AS 46.03.100
AS 46.03.110
Disclaimer: These regulations may not be the most recent version. Alaska 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.
