Current through Register Vol. 24-18, September 15, 2024
(1) Any NPDES permit issued by the council shall apply and
insure compliance with all of the following, whenever applicable:
(a) All known, available, and reasonable methods of treatment;
including effluent limitations established under sections 301, 302, 306, and
307 of the act. The effluent limitations shall not be less stringent than those
based upon the treatment facility design efficiency contained in approved
engineering plans and reports or approved revisions thereto. The effluent
limitations shall reflect any seasonal variation in industrial loading;
(b) Any more stringent limitation, including those:
(i) Necessary to meet water quality standards, treatment
standards or schedules of compliance established pursuant to any state law or
regulation under authority preserved to the state by section 510 of the act;
or
(ii) Necessary to meet any applicable federal law or regulation
other than the act or regulations thereunder; or
(iii) Required to implement any applicable water quality
standards; such limitations to include any legally applicable requirements
necessary to implement total maximum daily loads established pursuant to
section 303(d) and
incorporated in the continuing planning process approved under section
303(e) of the
act and any regulations and guidelines issued pursuant thereto;
(iv) Prevent or control pollutant discharges from facility site
runoff, spillage or leaks, sludge or waste disposal, or materials handling or
storage; and
(v) Meet the permit by rule provisions of the state dangerous
waste regulation, WAC
173-303-802(4) or
(5).
(c) Any more stringent legal applicable requirements necessary
to comply with a plan approved pursuant to section
208(d) of the
act; and
(d) Prior to promulgation by the administrator of applicable
effluent standards and limitations pursuant to sections 301, 302, 306 and 307 of the act, such conditions as the council determines are necessary to carry
out the provisions of the act.
(2) In any case where an issued NPDES permit applies the
effluent standards and limitations described in paragraph 1 of this section,
the council shall make a finding that any discharge authorized by the permit
will not have reasonable potential to violate applicable water quality
standards and will have prepared some explicit verification of that
finding.
(3) In the application of effluent standards and limitations,
water quality standards and other legally applicable requirements pursuant to
subsections (1) and (2) of this section, each issued NPDES permit shall
specify:
(a) Average and maximum daily quantitative or other appropriate
limitations for the level of pollutants in the authorized discharge. The
average and maximum daily quantities must be made by weight except where the
parameters are such that other measures are appropriate;
(b) If a dilution zone is authorized within which water quality
standards are modified, the dimensions of such dilution zone.
Statutory Authority:
RCW 80.50.040(1) and (12).
04-21-013, amended and recodified as §
463-76-053, filed 10/11/04,
effective 11/11/04; Order 114, § 463-38-053, filed 2/4/77. Formerly WAC
463-16-053.
