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Final Mitigation Plan for Long Hollow Reservoir <br />La Plata River Mitigation Site (Permit No. 200375243) <br />Four piezometers were installed in the proposed wetland creation area in December 2007 to <br />monitor groundwater. The locations of the piezometers are shown on Figure 2. Readings from <br />the piezometers to date are shown in Table 2. Groundwater correlates to the normal pond water <br />surface. The piezometers will continue to be read monthly until construction begins. <br />Table 2. Water Measurements <br /> <br />Date Piezometer' <br />Groundwater Elevation (feet) <br />Pond Elevation (feet) <br /> P1 P2 P3 P4 <br />04/09/08 6421.2 6421.9 6418.2 6420.7 6421.2 <br />04/25/08 6420.2 6420.8 6418.4 6420.5 6420.6 <br />05/09/08 6420.1 6422.3 6421.8 6421.5 6420.3 <br />05/21/08 6420.5 6423.5 6421.6 6421.9 6421.3 <br />06/12/08 6420.7 6423.2 6421.0 6421.6 6421.6 <br />06/27/08 6420.6 6422.9 6418.5 6421.0 6421.4 <br />08/27/08 6420.0 6421.9 6417.9 6420.3 6420.9 <br />09/25/08 6419.6 6421.5 6418.3 6420.2 6420.2 <br />10/23/08 6420.0 6421.9 6418.2 6420.7 6420.0 <br />04/22/09 6420.5 6421.7 6418.7 6420.6 6420.5 <br />05/08/09 6420.4 6422.5 6418.7 6420.6 6420.4 <br />05/27/09 6421.2 6423.3 6421.6 6421.4 6421.1 <br />06/12/09 6421.0 6422.8 6419.6 6421.3 6421.1 <br />06/12/09 6420.6 6422.6 6418.9 6421.2 6421.0 <br />07/08/09 6420.5 6422.2 6418.7 6421.1 6420.9 <br />08/05/09 6420.2 6422.0 6418.3 6420.6 6420.4 <br />09/17/09 6420.0 6421.1 6417.6 6419.8 6419.7 <br />10/14/09 6419.8 6421.9 6417.7 6419.5 6419.4 <br />04/12/10 6422.0 6423.5 6422.0 6421.7 6421.4 <br />04/28/10 6421.5 6422.6 6420.1 6421.5 6421.4 <br />05/20/10 6421.1 6423.7 6421.2 6422.7 6421.4 <br />06/03/10 6421.5 6424.0 6422.3 6421.9 6421.4 <br />06/16/10 6421.5 6423.4 6421.5 6421.7 6421.8 <br />06/30/10 6420.9 6422.5 6420.7 6421.6 6421.3 <br />07/15/10 6420.5 6421.9 6418.7 6421.1 6421.1 <br />07/28/10 6420.6 6421.7 6418.5 6420.8 6420.7 <br />August 2010 Bikis Water Consultants, LLC Page 4