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Page 9 <br />Requirement Regulation Comment <br />exceeded the 8.5 standard. Well COV11 exceeded <br />the pH standard however, the Division could not <br />locate the baseline water data for this well. Other <br />wells completed in the Wadge Overburden similar to <br />COV11 exceeded the pH standard. <br /> <br />Six groundwater wells exceeded the Manganese <br />standard (0.2 mg/l) in 2016. As mentioned in item <br />number 8 above, in soils with a high pH a standard of <br />10 mg/l would be more appropriate than the 0.2 mg/l. <br />In 2016 no PSCM wells displayed a value higher <br />than 10 mg/l. <br /> <br />Three wells exceeded the Fluoride standard (2.0 <br />mg/l). According to the 2016 AHR, elevated <br />Fluoride levels may be attributed to natural <br />conditions as elevated Fluoride levels were not <br />observed in the PSCM spoil wells and the wells that <br />have elevated levels in 2016 have had historically <br />high levels. <br /> <br />The Cadmium and Lead standards were not exceeded <br />in the spoil wells SSP27 and SSP61. These were <br />exceedances in the 2015 AHR, but no discussion of <br />these was provided. For Spoil Well SSP27, the <br />baseline data indicates elevated Cadmium and Lead <br />levels for this site. The Division could not located <br />baseline data for Well SSP61 in the PSCM permit, <br />however based on the 2008 AHR submitted for the <br />Seneca II Mine, this site has experienced elevated <br />Cadmium and Lead levels prior to the approval of the <br />PSCM permit. <br /> <br />19. Restoration of ground <br />recharge to approximate pre- <br />mining rate <br /> <br />CDRMS regulation <br />4.05.12(3) <br /> <br />For the 2016 water year, water levels at all wells fell <br />within their historic ranges with the exception of <br />Wells COV23, CW23, SCAL69, and SW19 which <br />fell below is historic ranges. All alluvial wells <br />displayed seasonal water level fluctuations in <br />response to periods of precipitation recharge. <br /> <br />Overburden and coal well water are fluctuating in <br />response to the precipitation recharge, induced <br />ground water flow to the reclaimed mine pits, and in <br />some cases, changes in reservoir water levels.