2016-10-20_REVISION - C2009087 - Laserfiche WebLink

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RULE 2 -PERMITS Table 2.04.7-T10.1 Groundwater Analytical Parameter Short List Parameter Name Analysis Technique Units Field Conductivity Direct Measurement µmhos/cm pH Direct Measurement std. units Temperature Direct Measurement °C Laboratory Fluoride Dissolved mg/L Iron Dissolved mg/L Manganese Dissolved mg/L Nitrogen, Nitrate Dissolved mg/L Nitrogen, Nitrite Dissolved mg/L Sulfate Dissolved mg/L Selenium Dissolved ug/L Total Dissolved Solids at 180°C Dissolved mg/L Surface Water Monitoring A surface water monitoring program will be implemented to allow identification and quantification of the effects the proposed mining activities may have on surface water discharge and water quality. PSCM proposes to maintain the present baseline monitoring regime and add several additional surface water monitoring sites that are used to determine hydrologic impacts from the Seneca II Mine. Table 2.04.7-T11 lists the surface water monitoring points to be included in the monitoring program, monitoring frequencies and parameter list used. Tables 2.04.7-T12 and 12.1 list the water quality parameters to be measured in the field and those to be measured or analyzed in the laboratory. The outfalls of Ponds 002, 003, and 004 will continue to be National Pollutant Discharge Elimination System (NPDES) compliance points incorporated into a new Colorado Department of Public Health and Safety (CDPHS)/NPDES Permit that may be found in Exhibit 2.05.3-E3. Site YSG5, on Grassy Creek downstream of all potential mine impacts, will be the point of evaluation for surface water impacts under SMCRA. Annual monitoring reports will be provided to Colorado Department of Reclamation, Mining, and Safety (CDRMS) no later than March 31st of each year. PSCM Permit App. 2.04-106 Revision 10/17/16