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October 2012 <br />Attorney Work Product, <br />Confidential and Privileged <br />11 <br />• Whether there are private wells that are currently representative of background <br />conditions in the same formations that is now showing evidence of impact. <br />103- 81640A <br />2.4 Monitoring <br />After the physical well hydraulic testing is completed on the newly installed monitoring wells, it is <br />anticipated that four rounds of quarterly groundwater monitoring (water level measurement and water <br />quality sampling) will be performed and will begin in the first quarter of 2013. Due to the low hydraulic <br />conductivities observed in three of the four existing monitor wells, it is anticipated that the new wells may <br />take considerable time (e.g., weeks or months) to stabilize and be reflective of in situ groundwater <br />chemistry following the disturbance by drilling. <br />This monitoring will be conducted in accordance with the procedures outlined in the sampling and <br />analysis plan (Golder 2010a, 2010b). It is anticipated that monitoring will be performed on both the three <br />new monitoring wells and the four existing monitoring wells (seven wells total). The new well monitoring <br />events will be consistent with the monitoring events for the existing wells so that the results will be <br />comparable. The constituents to be analyzed for this water quality sampling will be the same as currently <br />being conducted on a quarterly basis for the existing wells (pH, total dissolved solids, dissolved metals, <br />cations, anions, gross alpha, gross beta, and alkalinity as bicarbonate and carbonate). <br />\10 \81640\ 0400\ charactenzationpin_ fnl- 23octl2 \charactenzationpin_fnl- 23octl2 docx <br />Golder <br />Associates <br />