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Permit No. COG-850000 <br />Facifiry No. COG-850008 <br />Page I a <br />Colorado Discharge Permit System Regulations <br />CERTIFICATION <br />under <br />GENERAL PERMIT FOR COAL AIL ING FACILITIES (SIC NO: 1222) <br />Category 07, Sub-category 5, General Permits, Current fee 57801year (CRS 25-8-502) <br />This certification specifically authorizes Hayden Gulch Terminal Inc., to discharge from the Hayden Gulch Loadout, <br />as described below and in accordance with the General Permit for Coal Mining Facilities (Surface Runoff). <br />All correspondence relative to this facility should reference the specific facility number, COG-850008. <br />Permittee Facility Contact <br />Hayden Gulch Terminal Inc. John Weinman <br />P.O. Box 772996 970-871-6125 <br />57 10's Street, Suite B <br />Steamboat Springs, CO 80477 <br />Project Name, Activity and Location <br />The Hayden Gulch Loadout is a coal rail loadout facility that is in temporary cessation. Discharge is from surface water runoff. The <br />facility is located in E Vs Section 10, W V2 Section 12 and E V2, E V2 Section 15, NE '/2 Section 22 and N V2 N '/ NW V. Section 23, <br />T6N, R88W, in Routt County. <br />Ou#'alls <br />00, Surface Runoff Sedimentation 400 28.05' 11070 14.15' 0.37 MG Dry Creek <br />0 002 Surface Runoff Sedimentation 40028.10'/ 107° 14.01' 0.65 MG Dry Creek <br />Effluent Parameters <br />The discharge is to the Dry Creek, within Segment 13d of the Yampa River sub-basin, Upper Colorado River and North Platte River <br />Basin, found in the Classifications and Numeric Standards for the Upper Colorado River and North Platte River Basin (Regulation No. 33; <br />last update effective 3/1/08). Segment 13d is Use Protected, and is classified for the following beneficial uses: Aquatic Life, Class 2 <br />Warm; Recreation Class 1 a; and Agriculture. <br />Permit Limitations and Monitoring Requirements for Coal Preparation Plants and Associated Areas, OutfaQs 001 and 002 <br /> General Permit Requirements <br />Flow, MGD Report NA Report Discharge Evaluation Continuous l <br />Instantaneous. Recorder l <br />In-situ - <br />pH, s. u. N/A NA 6.5-9.0 Water Quality Standards 2 days / month Grab <br />Oil and Grease, mg/1 N14 NA 10 State Effluent Regulations 2 days/ month Visual 3 <br /> Federal Effluent Limitation Guidelines <br />Total Suspended Solids, mg/7 * 35 NA 70 Federal ELG 2 days /month Grab <br />Settleable Solids, mill * Report N4 0.5 Federal ELG 2 days /month Grab <br /> mite Specific Limitations <br />Total Dissolved Solids, mg11 Report NA Report Salinity Regulations Quarterly' Grab <br />Total Recoverable Iron, ug/1 1000 NA NA Water Quality Standards 2 days /month Grab <br />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. <br />2 - If power is not available, flow may be measured on an instantaneous basis. Major facilities shall monitor flow weekly, minor facilities 2 days / month <br />- If a visual sheen is noticed, a grab sample must be taken and analyzed for oil and grease <br />- 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, <br />the monitoring frequency shall be weekly. <br />` Mtcmate Limitations may also apply. See Be!oty. <br />Phis limitatwn will apply and will suhstitute t'or the 't)-day average total iron limit teased upon the ELG. when a total recoverable iron standard is applicable to the <br />vream segivent. <br />IODWIED APiD EFFECTIVE: JULY 10. 2008 EXPLRES: JUNE 30, 2013