Chapter 295

295.48(4)(d)2. 2. Reagents and mine mill chemicals that consist of or contain water soluble salts or metals will be used in accordance with any applicable approval.

295.48(4)(d)3. 3. Reagents will not be used or stored at the mining site if they are not included in the mining waste site feasibility study and plan of operation or in the mining plan, except for reagents for laboratory, testing, research, or experimental purposes.

295.48(4)(e) (e) Provisions will be made for back-up equipment in the event of the breakdown of critical operation equipment.

295.48(4)(f) (f) The design and operation specifications for mining site facilities include features, which may include emergency power supplies, redundant equipment, or temporary holding facilities, to deal with emergency conditions.

295.48(4)(g) (g) Mining site facilities are designed to minimize disturbance to surface areas, to the extent practicable.

295.48(4)(h) (h) Where practicable, elevation differences in water-based transport systems will be used for gravity flows to minimize pumping facilities and pressures.

295.48(4)(i) (i) The following apply:

295.48(4)(i)1. 1. Systems for transporting tailings in slurry through pipelines that are not buried are designed to provide for emergency tailings conveyance or storage in case a pipeline breaks, plugs, freezes, or needs repairs and will be accessible for inspection, emergency repair, and maintenance.

295.48(4)(i)2. 2. The location of emergency spill containment areas is consistent with the prevention of substantial environmental pollution of surface waters.

295.48(4)(i)3. 3. In the event of a power failure, tailings pipelines will be self draining to a tailings area or an emergency spill containment area or standby pumps and pipelines or standby power is provided.

295.48(4)(i)4. 4. More than one emergency spill containment area is provided if necessary.

295.48(4)(j) (j) If practicable, all liquid effluents from the mining site will be directed to a common point, for treatment if necessary, before discharge to a natural watercourse.

295.48(4)(L) (L) If sanitary wastes will be directed to a tailings area they will be appropriately treated.

295.48 History History: 2013 a. 1, 358.

295.49 295.49 Reclamation plan.

295.49(1) (1) An applicant for a mining permit shall submit as part of the application a reclamation plan, designed to minimize adverse effects to the environment to the extent practicable, that includes all of the following:

295.49(1)(a) (a) A description of the manner, location, sequence, and timing of reclamation of the mining site, including the mine, mining waste site, and sites for the disposal of wastes that are not mining wastes.

295.49(1)(am) (am) Prereclamation and postreclamation drawings.

295.49(1)(b) (b) A map showing the specific reclamation proposal for each area of the mining site.

295.49(1)(c) (c) A description of ongoing reclamation procedures during mining.

295.49(1)(d) (d) A description of proposed interim and final topography and slope stabilization.

295.49(1)(e) (e) A description of the proposed final land use and the relationship to surrounding land and land use.

295.49(1)(f) (f) Plans for the long-term care of the mining site, that include all of the following:

295.49(1)(f)1. 1. Monitoring of the mine; mining waste sites; sites for the disposal of wastes that are not mining wastes; groundwater quality; and surface water quality.

295.49(1)(f)2. 2. The names of persons legally and operationally responsible for long-term care.

295.49(1)(g) (g) Projected costs of reclamation, including the estimated cost of fulfilling the reclamation plan.

295.49(2) (2) The applicant shall demonstrate in the reclamation plan that all of the following will apply to the proposed reclamation, at a minimum:

295.49(2)(a) (a) All toxic and hazardous wastes will be disposed of in conformance with applicable state and federal laws.

295.49(2)(b) (b) At the conclusion of mining activity, each tunnel, shaft, and other underground opening will be sealed in a manner that will prevent seepage of water in amounts that may be expected to create a safety, health, or environmental hazard, unless the applicant demonstrates alternative uses for the tunnel, shaft, or other underground opening that do not endanger public health or safety and that conform to applicable environmental protection and mine safety laws and rules.

295.49(2)(c) (c) Grading and stabilization of the excavation, sides, benches, and final slope will conform with state and federal environmental and safety requirements and will prevent erosion and environmental pollution to the extent practicable.

295.49(2)(d) (d) Grading and stabilization of the mining waste site and sites for the disposal of wastes that are not mining wastes will conform with state and federal environmental and safety requirements.

295.49(2)(e) (e) Merchantable by-products will be stabilized.

295.49(2)(f) (f) Diversion and drainage of water from the mining site, including the mining waste site and sites for the disposal of wastes that are not mining wastes, will be adequate to prevent erosion and contamination of surface water and groundwater to the extent practicable.

295.49(2)(g) (g) Backfilling with tailings, waste rock, overburden, or borrow materials will be conducted where the backfilling will not interfere with the mining and will not cause an applicable groundwater quality standard to be exceeded.

295.49(2)(h) (h) All underground and surface runoff waters from the mining site will be managed, impounded, or treated in compliance with any approval that regulates construction site erosion control or storm water management or discharge.

295.49(2)(i) (i) All surface structures constructed as part of the mining activities will be removed unless an alternate use is approved in the reclamation plan.

295.49(2)(j) (j) Adequate measures will be taken to prevent significant subsidence, but if subsidence does occur, the affected area will be reclaimed.

295.49(2)(k) (k) All recoverable topsoil from surface areas disturbed by the mining will be removed and stored in an environmentally acceptable manner for use in reclamation or in offsetting or minimizing adverse environmental impacts.

295.49(2)(L) (L) All disturbed surface areas will be revegetated as soon as practicable after the disturbance to stabilize slopes and minimize air pollution and water pollution, with the objective of reestablishing a variety of plants and animals indigenous to the area immediately prior to mining to the extent practicable.

295.49(2)(m) (m) Plant species not indigenous to the area will be used for revegetation only if necessary to provide rapid stabilization of slopes and prevention of erosion and only with the approval of the department, but the objective under par. (L) will be maintained.

295.49(3) (3) If it is physically or economically impracticable or environmentally or socially undesirable for the reclamation process to return the area affected by mining to its original state, the applicant shall provide, in the reclamation plan, the reasons it would be impracticable or undesirable and a discussion of alternative conditions and uses to which the affected area can be put.

295.49 History History: 2013 a. 1.

295.51 295.51 Mining waste site location criteria; feasibility study, and plan of operation.

295.51(1) (1) Definitions. In this section:

295.51(1)(a) (a) “Groundwater flow net” means a drawing showing equipotential contour lines and the direction that groundwater will flow.

295.51(1)(c) (c) “Regional” means relating to the area that may affect or be affected by a proposed mining waste site, which ordinarily will not exceed the area within a radius of 5 miles of the mining waste site.

295.51(1)(e) (e) “Water budget” means an assessment of water inputs, outputs, and net changes to a natural system or engineered facility over a fixed period.

295.51(1)(f) (f) “Well nest” means 2 or more wells constructed to different depths and installed within 10 feet of each other at the ground surface.

295.51(1e) (1e) Hazardous mining waste.

295.51(1e)(a) (a) Prior to the informational hearing under s. 295.57 (5) the department shall designate any mining wastes identified by the department as hazardous under s. 291.05 (1).

295.51(1e)(b) (b) The disposal of any mining wastes that are identified by the department as hazardous under s. 291.05 (1) in a mining waste site is subject to this subchapter, and not to chs. NR 660 to 679, Wis. Adm. Code, except as necessary to comply with applicable federal regulations adopted under the federal Resource Conservation and Recovery Act, 42 USC 6901 to 6991m.

295.51(1m) (1m) Location criteria.

295.51(1m)(a) (a) Except as provided in par. (b), no person may locate or operate a mining waste site, excluding the portion of a mining site from which ferrous minerals are extracted and that is backfilled with mining waste, within 1,000 feet of any of the following:

295.51(1m)(a)1. 1. The nearest edge of the right-of-way of any state trunk highway, as defined in s. 340.01 (60).

295.51(1m)(a)2. 2. The boundary of any state or national park.

295.51(1m)(a)3. 3. The boundary of a scenic easement purchased by the department or the department of transportation.

295.51(1m)(a)4. 4. The boundary of a designated scenic or wild river.

295.51(1m)(a)5. 5. A scenic overlook designated by the department by rule.

295.51(1m)(a)6. 6. A hiking or biking trail designated by the department or the U.S. Congress.

295.51(1m)(b) (b) The prohibition in par. (a) does not apply if, regardless of season, the proposed mining waste site is visually inconspicuous due to screening or being visually absorbed due to natural objects, compatible natural plantings, earth berm, or other appropriate means; or if, regardless of season, the proposed mining waste site is screened so as to be as aesthetically pleasing and inconspicuous as is feasible.

295.51(1m)(be) (be) Except as provided in par. (bn), no person may locate or operate a mining waste site, excluding the portion of a mining site from which ferrous minerals are extracted and that is backfilled with mining waste, within 1,000 feet of a navigable water that is a lake, pond, or flowage.

295.51(1m)(bg) (bg) Except as provided in par. (bn), no person may locate or operate a mining waste site, excluding the portion of a mining site from which ferrous minerals are extracted and that is backfilled with mining waste, within 300 feet of a navigable water that is a river or stream.

295.51(1m)(bn) (bn) The prohibitions in pars. (be) and (bg) do not apply to an activity that is associated with a mining waste site and that is approved by the department under s. 295.60, 295.605, or 295.61.

295.51(1m)(bq) (bq) No person may locate or operate a mining waste site, excluding the portion of a mining site from which ferrous minerals are extracted and that is backfilled with mining waste, within a floodplain.

295.51(1m)(bt) (bt) No person may locate or operate a mining waste site, excluding the portion of a mining site from which ferrous minerals are extracted and that is backfilled with mining waste, in an area within the property owned or leased by the mining operator, or on which the mining operator holds an easement, and on which the mining site is located if the area is closer than 200 feet to the outer boundary of that property.

295.51(1m)(c) (c) No person may locate or operate a mining waste site, excluding the portion of a mining site from which ferrous minerals are extracted and that is backfilled with mining waste, within 1,200 feet of any public or private water supply well that provides water for human consumption.

295.51(1m)(d) (d) No person may locate or operate a mining waste site, excluding the portion of a mining site from which ferrous minerals are extracted and that is backfilled with mining waste, within an area that contains mineral resources that are known at the time the application for the mining permit is issued, are likely to be mined in the future, and lie within 1,000 feet of the surface.

295.51(1s) (1s) Backfilled waste site. For surface mining, the portion of a mining site from which ferrous minerals are extracted and that is backfilled with mining waste and any buildings, structures, roads, or drainage controls associated with that portion of the mining site may be considered a single mining waste site.

295.51(2) (2) General. An applicant for a mining permit shall submit as part of the application a mining waste site feasibility study and plan of operation that demonstrates the suitability of the proposed mining waste site for the disposal of mining wastes and that describes the operation of the mining waste site.

295.51(3) (3) Waste characterization and analysis. For the purposes of this section, the applicant shall perform waste characterization and analysis, to identify the quantities, variability, and physical, radiological, and chemical properties of each mining waste as necessary to assess the potential environmental impact of handling, storage, and disposal. The applicant may include in the waste characterization and analysis a review of the literature and results from similar existing facilities, materials, or studies. For the purpose of the waste characterization and analysis, the applicant shall conduct testing on representative samples of materials available, on individual mining wastes from the mining process, and if the applicant proposes mixed storage or disposal of individual mining wastes, on composite mining wastes. If physical or chemical segregation of a mining waste is proposed, the applicant shall test each individual waste resulting from the physical or chemical segregation. The applicant shall complete all of the following components of the waste characterization and analysis:

295.51(3)(a) (a) Identification of all mining wastes that will be disposed of or stored in the mining waste site, including classification of mining waste types, estimates of the rates of generation and volumes of each type, and an explanation of the proposed ultimate disposition of each type.

295.51(3)(b) (b) Chemical, radiological, physical, and mineralogical analyses of each type of mining waste.

295.51(3)(c) (c) Analyses of the particle size of the mining wastes.

295.51(3)(d) (d) Chemical and physical characteristics testing, including testing to determine the leaching potential of the mining wastes and the composition of the resulting leachate, using, at a minimum, static testing, kinetic testing, and microscopic testing for mineralization characterization, except that this testing is not required if the applicant demonstrates, based on the analyses in pars. (b) and (c) or on past experience, that there is not a probability for significant adverse environmental impact or a probability of an adverse impact on public health, safety, or welfare.

295.51(4) (4) Site specific information. In addition to performing the mining waste characterization and analysis under sub. (3), for the purposes of the mining waste site feasibility study and plan of operation, an applicant shall conduct field and laboratory investigations to determine physical, chemical, and biological characteristics of the proposed mining waste site. The applicant shall do all of the following:

295.51(4)(a) (a) Perform field investigations to determine the specific topography, soil types, and depth to bedrock and groundwater.

295.51(4)(b) (b) Perform at least one soil boring, to bedrock or refusal, every 80 acres, characterizing the major geomorphic features such as ridges and lowlands and characterizing each major soil layer according to the unified soil classification system.

295.51(4)(c) (c) Prepare a boring log for each soil boring, including soil and rock descriptions, method of drilling, method of sampling, sample depths, date of boring, and water level measurements and dates, with elevations referring to United States geological survey mean sea level datum.

295.51(4)(d) (d) Collect soil samples to adequately determine the geology and ensure the proper design and monitoring of the mining waste site, including doing all of the following:

295.51(4)(d)1. 1. Collecting the soil samples at not greater than 5 foot depth intervals, unless physical conditions such as soil homogeneity indicate that greater intervals are adequate.

295.51(4)(d)2. 2. Collecting the soil samples using generally accepted techniques for sampling undisturbed soils, where that is appropriate.

295.51(4)(d)3. 3. Classifying all soil samples according to the unified soil classification system.

295.51(4)(e) (e) Perform soil tests as necessary for classification and correlation purposes and to develop necessary geotechnical design parameters for the mining waste site, without compositing soil samples.

295.51(4)(f) (f) Determine the hydraulic conductivity of the various soil strata, using in situ hydraulic conductivity testing procedures as appropriate to confirm values determined in the laboratory.

295.51(4)(g) (g) Determine horizontal and vertical groundwater flow patterns in and around the proposed mining waste site based on data obtained from groundwater monitoring wells and piezometers constructed in conformity with ch. NR 141, Wis. Adm. Code.

295.51(4)(h) (h) Conduct a program to establish baseline water quality through monitoring groundwater and surface water in the vicinity of the mine and the proposed mining waste site on a monthly basis and establishing physical-chemical and biological characteristics of the concentrations of substances in the water before mining begins at the mining site. The applicant shall do all of the following:

295.51(4)(h)1. 1. Select physical-chemical parameters based on transport and transformation mechanisms in the environment as well as other factors affecting the mobility and toxicity of pollutants.

295.51(4)(h)2. 2. Select biological parameters based on the environmental characterizations under sub. (5) (g), the degree of impact predicted, and the potentially affected organism’s sensitivity to contaminants.

295.51(4)(h)3. 3. Establish a final parameter list for groundwater and surface water based on preliminary sampling and known information concerning the waters in the vicinity of the mine and the mining waste site, consideration of applicable water quality standards, and the geology and composition of the ferrous mineral deposit that will be mined. At a minimum, in the program under this paragraph the applicant shall collect water quality data for all of the following parameters: