Note: | All horizontal locations must be based upon a control station related to a horizontal datum specified in chapter 58.20 RCW and chapter 332-130 WAC (NAD.83). |
(D) Detailed plans of the landfill that clearly show in plan and cross-sectional views, the original, undeveloped site topography before excavation or placement of solid waste; the existing site topography (if different from the original, undeveloped site topography) including the location and approximate thickness and nature of any existing solid waste; the seasonal high groundwater table; generalized geologic units; known and interpolated bedrock elevations; the proposed limits of excavation and waste placement; the location and placement of each liner system and of each leachate collection system, locating and showing all critical grades and elevations of the collection pipe inverts and drainage envelopes, manholes, cleanouts, valves, sumps, and drainage blanket thicknesses; all berms, dikes, ditches, swales and other devices as needed to divert or collect surface water runon or runoff; the final elevations and grades of the landfill cover system including the grading and gas venting layer, low permeability barrier, topsoil layers; the system used for monitoring and venting the decomposition gases generated within the landfill; groundwater monitoring wells; geophysical and geochemical monitoring devices or structures; leachate storage, treatment and disposal systems including the collection network, sedimentation ponds and any treatment, pretreatment, or storage facilities; typical roadway sections, indicating the pavement type, dimensions, slopes and profiles; the building floor plans, elevations, appurtenances; and plans detailing the landfill entrance area including gates, fences, and signs.
(b) Engineering reports. The engineering reports for a facility must:
(i) Contain a cover sheet, stating the project title and location, the owner's or operator's name, and the engineer's name, address, signature, date of signature, and seal;
(ii) Have its text printed on 8 1/2" by 11" pages (paginated consecutively);
(iii) Contain a table of contents or index describing the body of the report and the appendices;
(iv) Include a body of report whose content is described by (c) of this subsection; and
(v) Include all appendices.
(c) An engineering report must contain a description of the existing site conditions and, at a minimum, an analysis of the proposed facility that must:
(i) Describe current operating practices, expected life and any pending litigation or remedial actions relating to the existing or past facilities;
(ii) Specify the proposed design capacity of the MSWLF unit for which approval is being sought, describing the number, types, and the minimum specifications of all the necessary machinery and equipment needed to effectively operate the landfill at the proposed design capacity;
(iii) Contain a site analysis including:
(A) The location of the closest population centers;
(B) A comprehensive description of the primary transportation systems and routes in the facility service area (i.e., highways, airports, railways, etc.);
(C) An analysis of the existing topography, surface water and subsurface geological conditions in accordance with the hydrogeologic report requirements of WAC
173-351-490;
(D) A description of the materials and construction methods used for the placement of each groundwater monitoring well pursuant to the requirements of WAC
173-351-400 and gas monitoring well pursuant to WAC
173-351-200(4); all gas venting systems; each liner and leachate collection and removal system; leachate storage, treatment, and disposal systems; and cover systems to demonstrate conformance with the design requirements found in WAC
173-351-300,
173-351-320, and
173-351-500. This description also must include a discussion of provisions to be taken to prevent frost action upon each liner system in areas where refuse has not been placed;
(E) An estimate of the expected quantity of leachate to be generated, including:
(I) An annual water budget that estimates leachate generation quantities during operation, upon application of intermediate cover, and following MSWLF unit or all MSWLF units closure. At a minimum, the following factors must be considered in the preparation of the water budget to determine the amount of leachate generated as a result of precipitation infiltration into the MSWLF unit or all the MSWLF units: Average monthly temperature, average monthly precipitation, evaporation, evapotranspiration which considers the vegetation type and root zone depth, surface/cover soil conditions and their relation to precipitation runoff which must account for the surface conditions and soil moisture holding capacity and all other sources of moisture contribution to the landfill;
(II) Liner and leachate collection system efficiencies that must be calculated using an appropriate analytical or numerical assessment. The factors to be considered in the calculation of collection system efficiency must include, at a minimum, the saturated hydraulic conductivity of the liner, the liner thickness, the saturated hydraulic conductivity of the leachate collection system, the leachate collection system porosity, the base slope of the liner and leachate collection and removal system interface, the maximum flow distance across the liner and leachate collection and removal system interface to the nearest leachate collection pipe, the estimated leachate generation quantity as computed in accordance with the requirements of (c)(iii)(E)(I) of this subsection; and
(III) Predictions of the static head of leachate on the liners, volume of leachate to be collected, and the volume of leachate that may permeate through the entire liner system, all on a monthly basis. Information gained from the collection efficiency calculations required in (c)(iii)(E)(I) and (II) of this subsection must be used to make these predictions. This assessment also must address the amount of leachate expected to pass through the liner system in gallons per acre per day (liters per square meter per day).
(d) Discuss the closure and post-closure maintenance and operation of the facility which must include, but not be limited to:
(i) A closure design consistent with the requirements of WAC
173-351-500;
(ii) A post-closure water quality monitoring program consistent with the requirements of WAC
173-351-400 and
173-351-500;
(iii) An operation and closure plan for the leachate collection, treatment, and storage facilities consistent with the requirements of this regulation and chapter
173-350 WAC;
(iv) An estimate of the time required following closure of each MSWLF unit or all MSWLF units to meet the criteria in WAC
173-351-500 (2)(b)(iii); and
(v) A discussion of the future use of the facility, including the specific proposed or alternative uses during the post-closure period. Future uses must not adversely affect the final cover system. See WAC
173-351-500 (2)(c)(iii).
(e) Appendices must be submitted as part of an engineering report with an application to construct a new or laterally expanded MSWLF unit and must contain:
(i) Appropriate charts and graphs;
(ii) Copies of record forms used at the MSWLF unit;
(iii) Test pit logs, soil boring logs, and geological
information (such as stratigraphic sections, geophysical and geochemical surveys, and water quality analyses);
(iv) Engineering calculations (including the raw data from which they were made);
(v) Other supporting data, including literature citations.
(6) Construction quality assurance and construction quality control plans.
The construction quality assurance (QA) and construction quality control (QC) plan must address the construction of the MSWLF unit according to the designs set forth in chapter
173-351 WAC. (Construction QA and construction QC are defined in WAC
173-351-100.) The owner or operator may submit separate construction QA plans and construction QC plans. For each phase of construction, these plans must include:
(a) A delineation of responsibilities for the QA management organization and the QC management organization, including the chain of command of the QA inspectors and contractors and the QC inspectors and contractors; quality assurance must be performed by a third-party organization that is independent of the landfill owner/operator/contractor.
(b) A description of the required level of experience and training for the contractor, his/her crew, and QA and QC inspectors for every phase of construction in sufficient detail to demonstrate that the approved installation methods and procedures will be properly implemented; and
(c) A description of the QA and QC testing protocols for every major phase of construction, which must include, at a minimum, the frequency of inspection, field testing, sampling for laboratory testing, the sampling and field testing procedures and equipment to be utilized, the calibration of field testing equipment, the frequency of performance audits, the sampling size, the laboratory procedures to be utilized, the calibration of laboratory equipment and QA/QC of laboratory procedures, the limits for test failure, and a description of the corrective procedures to be used upon test failure.
Note: | It is intended that owners or operators will select and pay for the independent third party construction quality assurance firm, who will report to the owner or operator. |
(7) Signature and verification of applications.
(a) All applications for permits must be accompanied by evidence of authority to sign the application and must be signed by the owner or operator as follows:
(i) In the case of corporations, by a duly authorized principal executive officer of at least the level of vice president; in the case of a partnership or limited partnership, by:
(ii) A general partner;
(iii) Proprietor; or
(iv) In the case of a sole proprietorship, by the proprietor;
(v) In the case of a municipal, state, or other governmental entity, by a duly authorized principal executive officer or elected official.
(b) Applications must be sworn to by, or on behalf of, the owner or operator, in respect to the veracity all statements therein; or must bear an executed statement by, or on behalf of, the owner or operator to the effect that false statements made therein are made under penalty of perjury.
[Statutory Authority: RCW
70.95.020(3),
70.95.060(1), and
70.95.260 (1), (6). WSR 12-23-009 (Order 07-15), § 173-351-730, filed 11/8/12, effective 12/9/12. Statutory Authority: Chapter
70.95 RCW and 40 C.F.R. 258. WSR 93-22-016, § 173-351-730, filed 10/26/93, effective 11/26/93.]