Washington Administrative Code
Title 173 - Ecology, Department of (See also Titles 197, 317, 372, and 508)
Chapter 173-304 - Minimum functional standards for solid waste handling
Section 173-304-130 - Locational standards for disposal sites
Universal Citation: WA Admin Code 173-304-130
Current through Register Vol. 24-06, March 15, 2024
(1) Applicability. These standards apply to all new and expanded disposal sites including landfills, landspreading disposal sites, and piles and surface impoundments that are to be closed as landfills. These standards do not apply to:
(a) Existing
facilities or facilities that have engaged in closure and closed before the
effective date of this regulation;
(b) Interim solid waste handling
sites;
(c) Energy recovery and
incineration sites;
(d) Piles and
surface impoundments used for storage, unless otherwise referred to in WAC
173-304-400, Solid waste handling
facility standards;
(e) Utilization
of sludge and other waste on land;
(f) Inert wastes and demolition wastes as
defined in WAC
173-304-100 unless otherwise
referred to in WAC
173-304-400, Solid waste handling
facility standards; and
(g) Problem
wastes, as defined in WAC
173-304-100.
(2) Locational standards. All applicable solid waste facilities shall be subject to the following locational standards:
(a) Geology. No facility shall be located
over a holocene fault, in subsidence areas, or on or adjacent to geologic
features which could compromise the structural integrity of the
facility.
(b) Groundwater.
(i) No facility shall be located at a site
where the bottom of the lowest liner is any less than ten feet above the
seasonal high level of groundwater in the uppermost aquifer, or five feet when
a hydraulic gradient control system or the equivalent has been installed to
control groundwater fluctuations;
(ii) No landfill shall be located over a sole
source aquifer; and
(iii) No
facility's active area shall be located closer than one thousand feet to a
down-gradient drinking water supply well, in use and existing at the time of
the county's adoption of the comprehensive solid waste management plan unless
the owner or operator can show that the active area is no less than ninety days
travel time hydraulically to the nearest down-gradient drinking water supply
well in the uppermost useable aquifer.
(c) Natural soils. See WAC
173-304-400, such as WAC
173-304-460(3)(c)(i),
landfill liners;
(d) Flooding. See
WAC 173-304-400 such as WAC
173-304-460(3)(d),
landfill, floodplains;
(e) Surface
water. No facility's active area shall be located within two hundred feet
measured horizontally, of a stream, lake, pond, river, or salt water body, nor
in any wetland nor any public land that is being used by a public water system
for watershed control for municipal drinking water purposes in accordance with
WAC 248-54-660(4);
(f) Slope. No
facility's active area shall be located on any hill whose slope is
unstable;
(g) Cover material. See
WAC 173-304-400, such as WAC
173-304-460(3)(e),
landfills, closure;
(h) Capacity.
See WAC 173-304-400, such as WAC
173-304-460, Landfilling
standards, (for standards that vary according to capacity);
(i) Climatic factors. See WAC
173-304-400 such as WAC
173-304-460(3)
landfill standards, (for standards applicable to arid climates);
(j) Land use. No facility shall be located:
(i) Within ten thousand feet of any airport
runway currently used by turbojet aircraft or five thousand feet of any airport
runway currently used by only piston-type aircraft unless a waiver is granted
by the federal aviation administration. This requirement is only applicable
where such facility is used for disposing of garbage such that a bird hazard to
aircraft would be created;
(ii) In
areas designated by the United States Fish and Wildlife Service or the
department of game as critical habitat for endangered or threatened species of
plants, fish, or wildlife;
(iii) So
that the active area is any closer than one hundred feet to the facility
property line for land zoned as nonresidential, except that the active area may
be no closer than two hundred and fifty feet to the property line of adjacent
land zoned as residential existing at the time of the county's adoption of the
comprehensive solid waste management plan;
(iv) So as to be at variance with any
locally-adopted land use plan or zoning requirement unless otherwise provided
by local law or ordinance; and
(v)
So that the active area is any closer than one thousand feet to any state or
national park.
(k) Toxic
air emissions. See WAC
173-304-400 such as WAC
173-304-460(2)(b),
landfill performance standards.
Statutory Authority: Chapter 43.21A RCW. 85-22-013 (Order 85-18), § 173-304-130, filed 10/28/85.
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