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AWES, LLC <br /> construction details of the monitoring wells were not reported in WesTest's summary report but are <br /> identified as one-inch monitoring wells by the operator. Boring logs are presented in Appendix A. <br /> 2.2 Groundwater Level Measurements <br /> All monitoring wells were surveyed to the nearest 0.01 foot for vertical elevation and to the nearest 0.5 foot <br /> for horizontal location. Groundwater level measurements in all wells have been measured by an electric <br /> water level indicator on a monthly basis since September 2015. Raptor will continue to measure water levels <br /> on a monthly basis during dewatering operations. After reclamation groundwater levels will be measured on <br /> a quarterly basis for one year and then on an annual basis until the mine permit has been withdrawn. <br /> 2.3 Chemical Analyses <br /> Table 1 presents field parameters and laboratory analyses for samples obtained from no less than one up- <br /> gradient and two down gradient wells. Water levels will be measured from all wells on a monthly basis.Two <br /> baseline samples will be obtained from one upgradient and two downgradient wells no less than two months <br /> apart. The wells will be sampled for the laboratory parameters if there is an exceedance in the stormwater <br /> laboratory parameters. On an annual basis field parameters of pH,specific conductance and temperature will <br /> be measured in waters obtained from the selected wells after three well bore volumes have been evacuated. <br /> Table 1—Analytical Parameters <br /> Parameter Analytical Method Units Water Quality Frequency <br /> Standard <br /> Field Parameters <br /> Direct <br /> pH Measurement s.u. 6.5-9 Annual <br /> Specific Conductance Direct US/Cm N/A Annual <br /> Measurement <br /> Temperature Direct °F N/A Annual <br /> Measurement <br /> Water Level Direct Ft. N/A Monthly <br /> Measurement <br /> Laboratory Parameters <br /> Two baseline samples/stormwater <br /> Arsenic,Total EPA 200.8 ug/L 10 upset <br /> Selenium,Dissolved EPA 200.8 ug/L 50 Two baseline samples/stormwater <br /> upset <br /> 2.4 Drawdown/Mounding Modeling <br /> Water level data will be used for drawdown and mounding analyses.The average of monthly water level data <br /> over a one year period will be input into the geostatistical software package Surfer'.Variations in pre-mining <br /> water levels will be presented on a two dimensional contour map and will be compared to numerical <br /> predictions and will be provided to the Division upon request. <br /> 2.5 Contingency Plan and Abatement <br /> As mine dewatering will create a groundwater sink it is highly unlikely that changes in groundwater quality <br /> will occur due to mining activities. As water levels will be measured on a monthly basis unanticipated <br /> 2 <br />