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Ground Water <br />Water Levels. <br />Water level data are presented in Appendix B. The table of contents of <br />Appendix B indicates which wells carry PSCM monitoring requirements (all <br />other wells were required by the old Seneca II Mine permit). Water level <br />reports for data collected since 2006 are presented immediately after <br />the water level hydrograph of all historic data for each respective <br />well. By presenting all historic data, trends related to seasonal and <br />annual variability and possible mining -related impacts are more clearly <br />evident. Table 3 (Summary of Ground Water Monitoring Wells) is presented <br />as a reference for the reader. No monitor wells were completed or <br />abandoned this year. The ground water monitoring program is presented on <br />pages 7-341/342 of the Seneca II PAP and on Table 2.04.7-T9, page 2.04- <br />104 (Vol. 1) of the PSCM PAP. Water level measurements obtained in non - <br />flowing wells are taken with a water level indicator, or in the case of <br />a few shallow alluvial wells, directly from a steel tape. Pressure <br />readings (in psi) obtained from flowing wells with pressure gages are <br />multiplied by 2.31 to obtain head in feet. For the sake of brevity, the <br />prefix that precedes all well names will be dropped throughout this <br />report (except in the case of nested wells with a similar number). As an <br />example, Well SCAL46 may be referred to as Well 46. <br />Ground Water Level Summary. <br />This year, water levels at all wells fell within their historic ranges, <br />with the sole exception of Well SSP61. Well SSP61 displayed a water <br />level in May 2015 that was less than the historical range. However, the <br />September 2015 water level rebounded to within the historical range. <br />All alluvial wells show distinct seasonal water level fluctuations in <br />response to periods of precipitation recharge or the lack of <br />precipitation. Overburden and coal well water levels display fluctuation <br />in response to precipitation recharge, induced ground water flow to the <br />reclaimed mine pits, and in some cases, changes in reservoir water <br />levels. Spoil well water levels still indicate that only the furthest <br />5 <br />