Laserfiche WebLink
West Elk Mine 2004 Annual Hydrology Report 6 <br />• 3.0 HYDROLOGIC MONITORING <br />The hydrologic monitoring program for the Project includes monitoring surface water resources, <br />springs and seeps, ground water resources, the underdrain, and pertinent mine water sites. Routine <br />monitoring includes collecting field water quality (pH, electrical conductivity (EC), and <br />temperature) and a laboratory sample collected annually. Flow or water level measurements are <br />collected three times per year. The three monitoring periods correspond with the rising limb period <br />between April 3rd and May 13"', the peak flow period between April 21"and June 26`", and the low <br />flow period between July lOd' and October 8d'. <br />A separate baseline monitoring schedule is followed for approximately one year prior to mine <br />development or two year prior to permit approval for newly added monitoring sites. The baseline <br />schedule involves collecting monthly field water quality data, flow or water level measurements <br />and collecting samples for laboratory analysis of permit specified water quality parameters. Site <br />specific baseline schedules are determined based on site accessibility and mine development <br />timing. Baseline monitoring is generally monthly from April through October. Winter access to <br />most areas at the West Elk Mine area is not practical and baseline monitoring is generally not <br />required from November through March. A summary of the monitoring schedule frequencies is <br />• presented in Table 1. <br /> <br />August 2005 HydroGeo, Inc. <br />