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F4 <br /> KLE/NFELDER <br /> 6119M—,*.Pi9t Saluuom. <br /> • 5. The dewatering wells were spaced approximately 75 feet apart extending north to <br /> south. The three dewatering wells (DW-1, DW-2, and DW-3) were installed to total <br /> depths of 20 (DW-2 and DW-3) and 30 feet (DW-1) below the ground surface (bgs). <br /> The dewatering wells were made operational during the third quarter of 2002. <br /> Discharge from the dewatering wells is directed to Basin B where it undergoes <br /> dentrification along with the other tailwater within the basin. <br /> Daily and weekly surface water and rainfall monitoring has been ongoing since the <br /> MRP was required by the RWQCB in 1997. Quarterly groundwater monitoring of the <br /> onsite shallow and deep monitoring wells has also been ongoing since installation <br /> (1997 and 1999, respectively) in accordance with the MRP. The results of historical <br /> groundwater monitoring at the site are summarized in the Tables and Charts section of <br /> this report. Based on the monitoring results, the RWQCB has been working on a <br /> revised MRP for Norman's Nursery since 2007. <br /> • <br /> • <br /> 117226.E021STO12R0696 Page 17 of 43 September 14, 2012 <br /> Copyright 2012 Kleinfelder <br />