2012-07-11_PERMIT FILE - C1980006

Home Browse Search

Permit No. COG - 850000 Facility No. COG - 850036 Page la Colorado Discharge Permit System Regulations CERTIFICATION under GENERAL PERMIT FOR COAL MINING FACILITIES (SIC NO: 1222) Category 07, Sub- categoty 5, General Permits, Current fee $780 1year (CRS 25 -8 -502) This certification specifically authorizes Kerr Coal Company, to discharge from the Marr Mine Loadout, as described below and in accordance with the General Permit for Coal Mining Facilities (Surface Runoff). All correspondence relative to this facility should reference the specific facility number, COG - 850036. Permittee Kerr Coal Company PO BOX 459 Florence, CO 81226 Facility Contact George Patterson 719- 784 -6395 Project Name, Activity and Location The Marr Mine Loadout is a reclaimed coal mine loadout site under post mining conditions. Discharge is from surface water runoff. The facility is located in SW '/4 Section 28, and SE 1/4 Section 29, T9N, R79W, in Jackson County. Outfalls Outfalls Source Treatment Lat/Long 10 -Yr, 24 -Hr Receiving Stream �,..:.. 001 Surface Runoff Sedimentation 400 43' / 1060 17' 0.154 MG Illinois River Effluent Parameters The discharge is to the Illinois River, within Segment 4 of the North Platte River Sub - basin, Upper Colorado River and North Platte River Basin, found in the Classifications and Numeric Standards for the Upper Colorado River and North Platte River Basin (Regulation No. 33; last update effective 3/1/08). Segment 4 is Undesignated, and is classified for the following beneficial uses: Aquatic Life, Class I Cold; Recreation Class la; Water Supply; and Agriculture. Permit Limitations and Monitoring Requirements for Post Mining, Outfall 001 1 — For a minor facility, as determined by the EPA NPDES Permit Rating Worksheet, all weekly monitoring requirements shall be changed to 2 days per month 2— If power is not available, flow maybe measured on an instantaneous basis Mayor facilities shall monitor flow weekly, minor facilities 2 days/ month 3 — If a visual sheen is noticed, a grab sample must be taken and analyzed for oil and grease 4 —Quarterly monitoring shall be prescribed if the limitation is based upon discharge to the Colorado River Basin If the limitation is based upon agricultural protection, the monitoring frequency shall be weekly * Alternate Limitations may also apply See Below ISSUED: JUNE 24, 2008 EFFECTIVE: JULY 1, 2008 EXPIRES: JUNE 30, 2013 Limitations Sample Parameter 30 -Day 7 -Day Daily Rationale Frequency Frequency Type Avg. Avg. Max. ---------------------------------------- - - - - -- General Permit Requirements-------------------------------------------------- Flow, MGD Report NA Report Discharge Evaluation Continuous / z Recorder/ 2 - Instantaneous In -situ pH, s.u. N/A NA 6.5 -9.0 Water Quality Standards 2 days /month Grab Total Suspended Solids, mg /1 30 45 NA State Effluent Regulations 2 days /month Grab Oil and Grease, mg /l N/A NA 10 State Effluent Regulations 2 days /month Visual 3 ------------------------------------ - - - - -- Federal Effluent Limitation Guidelines--------------------------------------------- Settleable Solids, ml /l * Report NA 0.5 Federal ELG 2 days /month Grab 1 — For a minor facility, as determined by the EPA NPDES Permit Rating Worksheet, all weekly monitoring requirements shall be changed to 2 days per month 2— If power is not available, flow maybe measured on an instantaneous basis Mayor facilities shall monitor flow weekly, minor facilities 2 days/ month 3 — If a visual sheen is noticed, a grab sample must be taken and analyzed for oil and grease 4 —Quarterly monitoring shall be prescribed if the limitation is based upon discharge to the Colorado River Basin If the limitation is based upon agricultural protection, the monitoring frequency shall be weekly * Alternate Limitations may also apply See Below ISSUED: JUNE 24, 2008 EFFECTIVE: JULY 1, 2008 EXPIRES: JUNE 30, 2013