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<br />Table 6-1- Total Disturbed Acres - 2009 <br />Process Area: Acres: <br />Process Ponds & Facilities 8 <br />Plant Process Area 6.2 <br />Well Field: <br />Well Pads 18.7 <br />Roads and Compacted Areas 18.7 <br />Total FaciliDisturbance: 51.6 <br />6.2 Regulatory Compliance <br />6.2.1 Regulatory Activity <br />In 2009, no additional Technical Revisions (TR) were submitted. <br />6.3 Reclamation Activity <br />6.3.1 Regrading <br />No additional acres were regraded in 2009. <br />6.3.2 Seeding <br />Limited overseeding occurred in 2009. <br />6.3.3 Reclamation Fencing <br />Repair and maintenance was performed on all existing fences. Fencing is utilized to protect <br />reclamation during establishment and to keep livestock out of the mud pits. <br />6.3.4 Precipitation <br />Precipitation gauges are located near the P/A injection well 90-5 (tipping gauge) and near <br />monitoring well EX-2 (V-gauge). Based on perennial vegetation, which is an indicator of long-term <br />precipitation, the "normal" precipitation for the NSI site is 12-14 inches for the calendar year. The <br />distribution of precipitation is important for reclamation. The following table, 6-2, provides a <br />composite of precipitation from the two gauges at NSI mine site: <br />Table 6-2: Precipitation Record (inches) <br /> 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 <br />Jan 1.02 0.69 0.58 0.51 0.61 0.67 0.49 0.40 1.30 0.82 1.50 0.76 0.65 <br />Feb 0.86 0.99 0.49 0.88 0.85 0.65 0.74 0.58 0.89 0.44 1.47 1.90 0.50 <br />Mar 0.45 1.46 0.57 1.49 0.65 1.05 1.22 0.17 1.21 1.06 1.03 1.80 0.60 <br />Apr 2.44 1.44 2.78 0.82 0.83 0.47 1.42 1.07 1.24 0.25 0.78 1.25 0.75 <br />May 1.01 0.83 1.20 1.18 1.15 0.02 0.60 0.39 0.82 0.20 0.47 0.45 1.25 <br />Jun 1.91 3.28 0.39 0.76 0.04 0.67 0.50 0.81 3.15 0.27 1.25 1.05 1.25 <br />Jul 1.04 1.98 1.99 1.35 0.40 1.06 0.40 0.80 0.47 1.13 1.75 0.20 0.30 <br />Aug 2.74 1.42 1.53 1.93 1.92 0.62 0.64 0.85 1.48 1.45 1.45 0.30 1.70 <br />Sep 4.83 0.60 0.52 1.47 0.46 1.91 0.91 1.39 1.40 2.25 1.85 0.50 0.80 <br />Oct 1.27 1.65 0.43 0.97 1.14 1.25 0.60 1.15 1.00 2.50 1.15 0.43 0.50 <br />Nov 1.09 0.81 0.34 0.75 0.72 0.62 0.91 0.95 0.78 2.50 1.25 0.30 0.30 <br />Dec 0.30 0.90 0.33 0.39 0.60 0.20 1.10 0.31 0.37 0.90 2.80 0.70 0.70 <br />Annual <br />Totals 18.96 16.05 11.15 12.5 9.37 9.19 9.53 8.87 14.11 13.77 16.75 9.64 930 <br />2009 Annual Report 13 of 33