Current through Register Vol. 24-06, March 15, 2024
(1)
Inert waste landfills - Applicability. These standards apply to
landfills that receive only the following types of solid waste if the waste has
not been tainted, through exposure from chemical, physical, biological, or
radiological substances, such that it presents a threat to human health or the
environment greater than that inherent to the material:
(a) Cured concrete;
(b) Asphaltic materials;
(c) Brick and masonry;
(d) Ceramic materials produced from fired
clay or porcelain;
(e) Glass;
and
(f) Stainless steel and
aluminum.
(2)
Inert waste landfills - Permit exemptions. In accordance with
RCW
70.95.305, inert waste landfill facilities
meeting the terms and conditions of Table 410-A are exempt from solid waste
handling permitting . If a facility does not operate in compliance with the
terms and conditions established for an exemption under this subsection, the
facility may be subject to the permitting requirements for solid waste handling
under this chapter. In addition, violations of the terms and conditions of this
subsection may be subject to the enforcement provisions of
RCW
70.95.315.
Table 410-A
Terms and Conditions for Solid Waste Permit
Exemption
Waste Material
|
Volume
|
Specific Requirements for Activity or
Operation
|
Inert wastes as listed in WAC
173-350-410(1)(a) |
250 cubic yards or less |
Meet the performance standards of WAC
173-350-040;
No notification or reporting requirements. |
(3)
Inert
waste landfills - Permit requirements - Location
. All
inert waste landfills must be located to meet the following requirements. No
inert waste landfill's active area may be located:
(a) On an unstable slope;
(b) Closer than ten feet from the facility
property line;
(c) Closer than one
thousand feet to an existing water supply well; or
(d) In a channel migration zone or within one
hundred feet measured horizontally, of a stream, lake, pond, river, or
saltwater body, or in any wetland .
(4)
Inert waste landfills - Permit
requirements - Design. Inert waste landfills must be designed so that
the facility can be operated to meet the performance standards of WAC
173-350-040,
and the design standards of this subsection. The existing site topography,
including the location and approximate thickness and nature of any existing
waste, the vertical and horizontal limits of excavation and waste placement,
final closure elevation and grades, and the design capacity of each landfill
unit, total design capacity, and future use of the facility after closure, must
be included. Inert waste landfills must be designed and constructed to:
(a) Ensure that all waste is above the
seasonal high level of groundwater. For the purpose of this section,
groundwater includes any water-bearing unit which is horizontally and
vertically extensive, hydraulically recharged, and volumetri-cally
significant;
(b) Maintain a stable
site;
(c) Manage surface water,
including run-on prevention and runoff conveyance, storage, and treatment, to
protect the waters of the state; and
(d) Provide controls to limit public access
and prevent unauthorized vehicular traffic and illegal dumping of wastes by use
of artificial barriers, natural barriers, or both, as appropriate to protect
human health and the environment. A lockable gate is required at each entry to
the landfill.
(5)
Inert waste landfills - Permit requirements - Documentation.
(a) The owner or operator must submit
construction documents for, at a minimum, any proposed addition or modification
of elements of the landfill described in subsection (4) of this section to the
jurisdictional health department for review and approval. The construction
documents for proposed construction of engineered features must be prepared by
a professional engineer registered in the state of Washington, and must
include:
(i) An engineering report that
presents the design basis and calculations for the engineered features of the
facility including any run-on/runoff controls, impoundments, storm-water
management features, and emission control features as required by the
permitting air authority where applicable. The engineering report must
demonstrate that the proposed design will meet the performance standards of
this chapter;
(ii) Scale drawings
of the facility including the location and size of waste storage and disposal
areas, fixed equipment, buildings, stormwater management features where
applicable, access roads, traffic patterns, and other constructed areas and
buildings integral to facility operation;
(iii) Design specifications for the
engineered features of the facility including any run-on/runoff controls,
impoundments, stormwater management features, and aeration and emission
management features as required by a permitting air authority where applicable;
and
(iv) A construction quality
assurance plan that describes monitoring, testing, and documentation procedures
that will be performed during construction of the facility to ensure the
facility is constructed in accordance with the approved design.
(b) The owner or operator of an
inert waste landfill must provide copies of the construction record drawings
for engineered features at the facility and a report documenting facility
construction, including the results of observations and testing carried out as
part of the construction quality assurance plan, to the jurisdictional health
department and the department. The owner or operator must not commence
operation in a newly constructed portion of the facility until the
jurisdictional health department has determined that the construction was
completed in accordance with the approved engineering report/plans and
specifications and has approved the construction documentation in
writing.
(6)
Inert
waste landfills - Permit requirements -Operating. The owner or operator
of an inert waste landfill must:
(a) Operate
the facility in compliance with the performance standards of WAC
173-350-040
and this subsection. In addition, the owner or operator must develop, keep, and
follow a plan of operation approved as part of the permitting process. The plan
must describe the facility's operation and convey to site operating personnel
the concept of operation intended by the designer. The plan of operation must
be available for inspection at the request of the jurisdictional health
department. If necessary, the plan may be modified with the approval, or at the
direction, of the jurisdictional health department. Each plan of operation must
include the following:
(i) A description of
the types of solid waste to be handled at the facility;
(ii) A description of the procedures used to
ensure that dangerous waste and other unacceptable waste are not accepted at
the facility;
(iii) A description
of how waste materials are to be handled on-site, including tipping procedures,
routine filling and grading, maximum site capacity, and equipment
used;
(iv) A description of how the
owner or operator will ensure the facility is operated in a way to:
(A) Control litter and dust;
(B) Control runoff;
(C) Prevent unstable conditions during
landfilling; and
(D) Control
unauthorized vehicular traffic and prevent illegal dumping.
(v) A description of how
equipment, structures, run-on/runoff controls, and other systems are to be
inspected and maintained, including the frequency of inspection and inspections
logs. The inspections must be at least weekly, unless an alternate schedule is
approved by the jurisdictional health department as part of the permitting
process;
(vi) A description of how
operators will maintain operating records of the amounts (weight or volume) and
types of waste received, including the form or computer printout used to record
this information. Facility annual reports must be maintained in the operating
record. Facility inspection reports must be maintained in the operating record,
including at least the date of inspection, the name and signature of the
inspector, a notation of observations made, and the date and nature of any
needed repairs or remedial action. Significant deviations from the plan of
operation must be noted in the operating record. Records must be kept for a
minimum of five years and must be available upon request by the jurisdictional
health department;
(vii) Safety and
emergency plans; and
(viii) Other
details to demonstrate that the facility will meet the requirements of this
subsection and as required by the jurisdictional health department.
(b) Prepare and submit an annual
report to the jurisdictional health department and the department by April 1st
on forms supplied by the department. The annual report shall detail the
facility's activities during the previous calendar year and must include the
following information:
(i) Name and address
of the facility;
(ii) Calendar year
covered by the report;
(iii) Annual
quantities and types of waste received; and
(iv) Any additional information required by
the jurisdictional health department as a condition of the permit.
(7)
Inert waste
landfills - Permit requirements-Groundwater monitoring. There are no
specific groundwater monitoring requirements for inert waste landfills subject
to this chapter; however, inert waste landfills must meet the performance
standards of WAC
173-350-040.
(8)
Inert waste landfills - Permit
requirements-Closure. The owner or operator of an inert waste landfill
must develop, keep, and follow a closure plan that includes:
(a) Notification to the jurisdictional health
department sixty days in advance of closure of the facility;
(b) Closure of the inert waste landfill unit
by leveling the wastes to the extent practicable, or as appropriate for the
proposed future use, and fill all voids which could pose a physical threat for
persons, or which provide disease vector harborages;
(c) Closure of inert waste landfills in a
manner that will control fugitive dust and protect the waters of the state;
and
(d) Recording of maps and a
statement of fact concerning the location of the landfill as part of the deed
with the county auditor not later than three months after closure.
(9)
Inert waste
landfills - Permit requirements-Financial assurance. There are no
specific financial assurance requirements for inert waste landfills subject to
this chapter; however, inert waste landfills must meet the performance
standards of WAC
173-350-040.
(10)
Inert waste landfills - Permit
application contents. The owner or operator must obtain a solid waste
permit from the jurisdictional health department. All applications for permits
shall be submitted in accordance with the procedures established in WAC
173-350-710.
In addition to the requirements of WAC
173-350-710
and
173-350-715,
each application for a permit shall contain:
(a) Engineering reports/plans and
specifications that address the design standards of subsections (4) and (5) of
this section;
(b) A plan of
operation that meets the requirements of subsection (6) of this section;
(c) A closure plan that meets the
requirements of subsection (8) of this section; and
(d) Documentation that all owners of property
located within one thousand feet of the boundary of the landfill as it is
proposed to be located in the solid waste permit application have been notified
that the proposed facility may impact their ability to construct water wells,
in accordance with chapter 173-160 WAC, Minimum standards for construction and
maintenance of wells.
Statutory Authority:
Chapter
70.95 RCW. 03-03-043
(Order 99-24), § 173-350-410, filed 1/10/03, effective
2/10/03.