NR 503.10(5)(h)1.1. An analysis and discussion of all soil testing work performed. All density and moisture content testing results shall clearly indicate which Proctor curve or line of optimums is applicable to the soil being compacted. Any changes in the referenced Proctor curve or line of optimums shall be identified as to when they occurred and why the change was made. All raw data from the soil testing performed shall be included in an appendix to the closure documentation report unless previously approved by the department. The raw data shall be summarized using a tabulated format. Also included shall be the make, model, weight and foot length of each piece of equipment used to compact clay.
NR 503.10(5)(h)2.2. When the auger method is used to determine soil layer thickness, a discussion of how the auger boreholes were backfilled and the materials used.
NR 503.10(5)(h)3.3. A table containing thicknesses of each layer in the cover system on a 100-foot grid pattern. When determining soil thickness by using surveying information, the table shall contain elevations before and after soil layer placement on the 100-foot grid. For areas less than 4 acres, a 50-foot grid shall be used. As an alternative to the survey method, soil thickness shall be controlled using settlement plates and grade stakes, and clay thickness shall be established on a 100-foot grid using auger borings. Boreholes shall be backfilled with a soil-bentonite mix such that the in-place permeability of the backfilled material is equal to or less than the surrounding clay cap.
NR 503.10(5)(h)4.4. The rates and types of fertilizer, seed and mulch applied. Liming requirements shall also be included along with the actual rate of application.
NR 503.10(5)(h)5.5. A series of properly labeled 35 millimeter color photographs which document all major aspects of landfill closure. This shall include panoramic views of the closed area as well as close-up photos of the construction process and completed engineering structures such as gas vents, cleanout ports, manholes and other pertinent structures.
NR 503.10(5)(i)(i) Testing shall be performed during the construction and closure of all landfill areas. At a minimum, this testing shall include:
NR 503.10(5)(i)1.1. For all recompacted clay soil construction the following tests shall be performed:
NR 503.10(5)(i)1.a.a. Dry density and as-placed moisture content shall be determined on an approximate 100-foot grid pattern for each one-foot thickness of clay placed. The grid pattern shall be offset on each subsequent layer of tests. A minimum of 2 dry density and moisture content tests for each one-foot thickness of clay placed shall be performed to fully define the degree of soil compaction obtained in confined areas where equipment movement is hindered or hand compaction is necessary.
NR 503.10(5)(i)1.b.b. One moisture-density curve shall be developed for every 5,000 cubic yards or less of clay placed and for each major soil type utilized. At least 5 points shall be established on each curve. If a line of optimums analysis is performed, at least 2 curves shall be included for each analysis. A representative sample for every 5,000 cubic yards or less of clay placed shall be analyzed for grain size distribution through the .002 millimeter particle size and for Atterberg limits. If apparent changes in soil quality are observed during clay placement, a one-point Proctor analysis shall be utilized to verify the applicability of previously analyzed moisture-density curves.
NR 503.10(5)(i)1.c.c. A minimum of one undisturbed sample for each acre or less for every one-foot thickness of clay placement shall be retrieved and analyzed for Atterberg limits, grain size distribution through the .002 millimeter particle size, moisture content and dry density. Laboratory hydraulic conductivity tests using effective stresses less than or equal to 5 psi and hydraulic gradients less than or equal to 30 shall be performed on every third undisturbed sample. The department may require that a portion of the hydraulic conductivity testing for liner documentation be performed using leachate.
NR 503.10(5)(i)2.2. During placement of the leachate drainage blanket over the liner or the granular drain layer in the final cover, the following testing shall be performed:
NR 503.10(5)(i)2.a.a. If sand is used, one grain size distribution to the #200 sieve for each 1,000 cubic yards of material placed. For lesser volumes, a minimum of 4 samples shall be tested. The department may allow a reduction in the testing frequency if a uniform gravel material is used. If washed stone or gravel is used, one grain size distribution to the #200 sieve for each 5,000 cubic yards of material placed. For lesser volumes, a minimum of 2 samples shall be tested.
NR 503.10(5)(i)2.b.b. One remolded laboratory hydraulic conductivity test for each 2,500 cubic yards of material placed. The samples shall be tested at the anticipated field density. The moisture content and density of each sample shall be recorded. The department may require that a portion of the hydraulic conductivity tests be performed using leachate. For lesser volumes, a minimum of 2 samples shall be tested. The department may allow a reduction in testing frequency if a uniform gravel material is used. No hydraulic conductivity tests are required if washed stone or gravel is used.
NR 503.10(5)(i)2.c.c. The department may require that chemical durability testing of the material when exposed to leachate be performed.
NR 503.10(5)(i)3.3. During placement of all leachate or groundwater collection pipe bedding material, the following tests shall be performed:
NR 503.10(5)(i)3.a.a. One grain size distribution to the #200 sieve for each 1,000 linear feet of trench. For construction projects with combined trench lengths of less than 3,000 feet, a minimum of 3 grain size analyses shall be conducted. Bedding for solid wall piping associated with transfer of leachate shall be tested at the same frequency but only to the #4 sieve.
NR 503.10(5)(i)3.b.b. One grain size distribution to the #200 sieve for each 500 cubic yards of drainage material placed in collection sumps.
NR 503.10(5)(i)3.c.c. Chemical durability testing of the material when exposed to leachate and laboratory hydraulic conductivity testing be performed if required by the department.
NR 503.10(5)(i)4.4. During construction of the final cover system, the following tests shall be performed:
NR 503.10(5)(i)4.a.a. One grain size distribution to the #200 sieve for each 1000 cubic yards of gravel used for pipe bedding and drain outlets for the drain layer and toe drain.
NR 503.10(5)(i)4.b.b. Testing of samples of geotextiles, geocomposite drains or other geosynthetic materials used in construction of the final cover system if required by the department.
NR 503.10(6)(6)financial responsibility for closure and long-term care. The owner of a landfill approved in accordance with this section shall establish proof of financial responsibility for closure and long-term care of the landfill using methods listed in s. NR 520.06.
NR 503.10(6)(a)(a) The owner of a landfill approved in accordance with this section shall submit, prior to beginning disposal operations and annually thereafter for the period of active landfill life, proof of financial responsibility to ensure compliance with the closure requirements of the approved report.
NR 503.10(6)(b)(b) The owner of a landfill approved in accordance with this section shall provide proof of financial responsibility for the long-term care of the landfill for 40 years after landfill closure. An owner responsible for long-term care shall submit, prior to beginning disposal operations and annually thereafter for the period of active landfill life, proof of financial responsibility to ensure compliance with the long-term care requirements of the approved report.
NR 503.10(6)(c)(c) Any person acquiring rights of ownership, possession or operation of a landfill approved in accordance with this section shall be subject to all requirements of the plan of operation for the landfill and shall provide any required proof of financial responsibility to the department in accordance with ch. NR 520. The previous owner shall maintain proof of financial responsibility until the person acquiring ownership, possession or operation of the landfill obtains department approval of proof of financial responsibility.
NR 503.10(7)(7)environmental monitoring. The owner of a landfill regulated under this section shall establish an environmental monitoring program which, at a minimum, includes the requirements of this subsection. The department may require installation of additional monitoring devices, additions to the groundwater and leachate sampling and analysis programs, gas monitoring and provisions to protect against the detrimental effects of leachate and gas migration.
NR 503.10(7)(a)(a) Baseline water quality shall be established at all monitoring wells for all the parameters listed in Table 3.
NR 503.10(7)(b)(b) A minimum of 4 samples, with at least 30 days between sampling rounds, shall be collected and analyzed for all parameters in Table 3 except VOCs and the results shall be submitted with the proposal for constructing the landfill. Four additional samples, with at least 30 days between sampling rounds, shall be collected and analyzed for any parameter listed in Table 3 which attained or exceeded the preventive action limit established in Table 1 of ch. NR 140 during 2 or more of the first 4 rounds or attained or exceeded the enforcement standard established in Table 1 of ch. NR 140 during one or more of the first 4 rounds.
NR 503.10(7)(bg)(bg) Baseline groundwater quality for VOCs shall be established for all VOCs listed in ch. NR 507 Appendix III, at all monitoring wells outside the proposed limits of filling.