18 AAC 70.010 - General
(a) A person may not conduct an operation
that causes or contributes to a violation of the water quality standards set by
this chapter.
(b) The water quality
standards set by this chapter specify the degree of degradation that may not be
exceeded in a waterbody as a result of human actions. The water quality
standards are set by the antidegradation policy in
18 AAC 70.015, the water quality
criteria in
18 AAC 70.020(b),
and the limits in
18 AAC 70.030, applied in
accordance with the remainder of this chapter.
(c) Except as specified in an authorization
issued under 18 AAC 15, 18 AAC 60, or 18 AAC 72, the water quality standards
and limits set by or under this chapter do not apply to a treatment works
authorized by the department under 18 AAC 60 or 18 AAC 72, except that the
water quality criteria and limits set by or under this chapter must be met in
adjacent surface water and groundwater at and beyond the boundary of the
treatment works.
(d) Where the
department determines that the natural conditions of a water of the state not
subject to 33 U.S.C.
1251-
1387 (Clean Water Act) is of lower
quality than the water quality criteria set out in
18 AAC 70.020(b),
the natural condition supersedes the criteria and becomes the standard for that
water. When establishing water quality-based effluent limits based on natural
conditions in a permit, certification, or other written decision, the
department will follow the procedures set out in the
(1) department's Guidance for the
Implementation of Natural Condition-Based Water Quality Standards,
dated November 15, 2006, and adopted by reference; or
(2) monitoring requirements for groundwater,
set out under 18 AAC 60.
Notes
The department's Guidance for the Implementation of Natural Condition-Based Water Quality Standards, adopted by reference in 18 AAC 70.010(d), may be viewed at the department's Juneau, Anchorage, or Fairbanks offices or requested from the department.
Authority: AS 46.03.010
AS 46.03.020
AS 46.03.050
AS 46.03.070
AS 46.03.080
AS 46.03.100
AS 46.03.110
AS 46.03.710
AS 46.03.720
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