H. Coal Mines and Coal Mining-Related Facilities

1. Authorized Stormwater Discharges

The requirements in Sector H apply to stormwater discharges associated with industrial activity from coal mines and coal mining-related facilities as identified by the SIC codes specified under Sector H in Table 5 of Appendix D.

2. Industrial Activities Authorized by Sector H Permittees under Sector H are primarily engaged in the following types of activities:

a. Haul roads (non-public roads on which coal or coal refuse is conveyed).

b. Access roads (non-public roads providing light vehicular traffic within the facility property and to public roadways).

c. Railroad spurs, siding, and internal haulage lines (rail lines used for hauling coal within the facility property and to off-site commercial railroad lines or loading areas).

d. Conveyor belts, chutes, and aerial tramway haulage areas (areas under and around coal or refuse conveyer areas, including transfer stations).

e. Equipment storage and maintenance yards, coal handling buildings and structures, and inactive coal mines and related areas (abandoned and other inactive mines, refuse disposal sites, and other mining-related areas).

3. Limitations on Authorization

Discharges not authorized by this permit:

a. Discharges from pollutant seeps or underground drainage from inactive coal mines and refuse disposal areas that do not result from precipitation events, and discharges from floor drains in maintenance buildings and other similar drains in mining and preparation plant areas.

b. Stormwater discharges subject to an existing effluent limitation guideline at 40 CFR pt. 434.

4. Sector-Specific Definitions

The following definitions do not supersede the definitions of active and inactive mining facilities established by 40 CFR 122.26(b)(14)(iii).

a. Reclamation - activities undertaken in compliance with applicable mined land reclamation requirements following cessation of the activities associated with extraction, removal, or recovery of coal intended to return the land to an appropriate post-mining land use in order to meet applicable Federal and State reclamation requirements.

b. Active coal mining facility - is a place where work or other activity related to the extraction, removal, or recovery of coal is being conducted. For surface mines, this definition does not include any land where grading has returned the earth to a desired contour and reclamation has begun. This definition is derived from the definition of “active mining area” found at 40 CFR 440.132(a).

c. Inactive metal mining facility – a site or portion of a site where metal mining and/or milling occurred in the past but is not an active facility as defined above, and where the inactive portion is not covered by an active mining permit issued by the applicable State or Federal agency. An inactive metal mining facility has an identifiable Owner/Operator.

d. Temporarily inactive metal mining facility -a site or portion of a site where metal mining and/or milling occurred in the past but currently are not being actively undertaken, and the facility is covered by an active mining permit issued by the applicable State or Federal agency.

5. Stormwater Controls

a. Employee Training.

As part of the employee training program, the Permittee shall address the following activities: use of reused and recycled waters, solvents management, proper disposal of dyes, and proper disposal of petroleum products and spent lubricants.

b. Erosion and Sedimentation Controls.

Surface Mining Control and Reclamation Act (SMCRA) requirements regarding sediment and erosion control measures are primary requirements of the SWPPP for mining-related areas subject to SMCRA authority.

c. Good Housekeeping.

The Permittee shall use sweepers and covered storage, water haul roads to minimize dust generation, and conserve vegetation to minimize erosion.

d. Inspections.

1. In addition to the inspection requirements outlined in Part III.G, the Permittee shall ensure that a total of two (2) of the required monthly inspections occur during runoff events, with at least one being performed during snow melt. Each inspection shall include a visual assessment of the runoff to identify any visible sheens or films that indicate the presence of oil or grease in the discharge. If sheens are present in stormwater discharges, corrective actions to prevent sheen shall be implemented and documented in the SWPPP.

The Permittee is only required to conduct visual inspections of runoff originating from, or passing through, areas of industrial activity and/or significant materials. Any runoff that does not contact industrial activity and/or significant materials (e.g. office buildings, employee parking lots, natural areas, etc) is not required to be inspected.

2. For active mining-related areas and inactive areas under SMCRA Bond Authority, the Permittee shall perform quarterly inspections, corresponding with the inspections performed by SMCRA inspectors, of all mining-related areas required by SMCRA. Also maintain the records of the SMCRA authority representative.

3. The Permittee shall perform inspections or other equivalent measures of storage tanks and pressure lines of fuels, lubricants, hydraulic fluid, and slurry to prevent leaks due to deterioration or faulty connections.

e. Preventive maintenance (No additional requirements).

f. Spills and Leaks (No additional requirements).

g. Management of runoff (No additional requirements).

h. Other Industry Specific Stormwater Control Measures (No additional requirements).

6. SWPPP Requirements

In addition to the requirements of Part IV, the Permittee shall also comply with the following:

a. Facility Map.

The Permittee shall identify where any of the following may be exposed to stormwater:

1. All applicable mining-related areas.

2. Acidic spoil, refuse, or unreclaimed disturbed areas.

3. Liquid storage tanks containing pollutants such as caustics, hydraulic fluids, and lubricants.

b. Inventory of Exposed Materials (No additional requirements).

c. Potential Pollutant Sources.

The Permittee shall describe the following sources that have potential pollutants associated with them:

1. Truck traffic on haul roads and resulting generation of sediment subject to runoff and dust generation.

2. Fuel or other liquid storage.

3. Pressure lines containing slurry, hydraulic fluid, or other potential harmful liquids.

4. Loading or temporary storage of acidic refuse or spoil.

d. Description of Stormwater Controls.

Most active coal mining-related areas (SIC Codes 1221- 1241) are subject to sediment and erosion control regulations of the U.S. Office of Surface Mining (OSM) that enforces the Surface Mining Control and Reclamation Act (SMCRA). OSM has granted authority to most coal-producing states to implement SMCRA through State SMCRA regulations. All SMCRA requirements regarding control of stormwater-related pollutant discharges shall be addressed in the SWPPP.

7. Monitoring and Reporting Requirements In accordance with the monitoring requirements of Parts V, the Permittee shall monitor the applicable parameters in Table H-1, below:

Sector-Specific Benchmark Values and Effluent Limitations: Sector - H. Discharges may be subject to requirements for more than one sector or subsector.
Link to this table

Subsector Parameter Benchmark Values
H1 Coal Mines and Related Area Solids, Total Suspended (TSS) 100 mg/L 1
Aluminum, Total (as Al) 1.5 mg/L
Iron, Total (as Fe) 1.0 mg/L
pH 2 6.0-9.0 SU

1If the Permittee is required to comply with Appendix A, part F.1, the benchmark value for Solids, Total Suspended (TSS) is 65 mg/L, instead of 100 mg/L.
2For purposes of benchmark pH monitoring, the Permittee is required to report instantaneous results only, and not a calculation of pH averages. pH measurements are logarithmic, and the Agency will be performing a logarithmic average for this parameter using the instantaneous results submitted.

8. Use of Infiltration Devices and/or Industrial Stormwater Ponds for Stormwater Treatment and Disposal

Sector H industrial facilities are authorized to use designed infiltration devices or industrial stormwater ponds for stormwater management

This page was last edited on 30 April 2015, at 16:02.


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