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nitrate spike likely represents the fall spike in nitrate concentration observed in the surrounding wells. This spike is <br />delayed because of its relative distance to cultivated land and the time that it takes for the groundwater to reach this <br />position. The overall concentration levels of nitrate in this well have continuously decreased between October 2005 and <br />October 2006. <br />Based on the one year of sampling and the monitoring wells located downgradient of current mining activities, it appears <br />that the nitrate concentration level in the groundwater near the active mining area is decreasing. The mining activities <br />have precluded any farming and fertilizing in the immediate vicinity of these wells, thus apparently improving the <br />groundwater quality in the immediate vicinity of the mine with regards to the nitrate concentrations. <br />Nitrate as N <br /> We lls (CRM W) Site/ <br /> 01 02 04 05 06 07 09 16 40 41 42 Grou <br />Oct-05 26.09 18.67 6.38 ---- 26.85 27.98 ----- ----- 16.8 12.36 ----- 19.3 <br />Nov-05 23.8 17.9 12.4 24.6 25.3 31.4 U 13.5 15.2 15 6.6 16.9 <br />Dec-05 22.1 14.8 13.8 ---- 22.3 19.5 ---- ---- 15.7 19.5 ---- 18.2 <br />Apr-06 22.2 8.3 11 ---- 16.9 13.5 ---- ---- 12.3 14.9 ---- i4.2 <br />Jul-06 38.4 11.6 4.43 ---- 23.7 15.7 ---- ---- 10.2 13 ---- 16.7 <br />Oct-06 70.3 28.7 14.8 8.51 9.23 51 U 15.1 18..8 13.9 7.87 21.7 <br />Average 33.8 16.7 10.5 16.6 20.7 26.5 0.0 14.3 14.8 14.8 7.2 18.1 <br />Stnd Dev. 18.9 7.1 4.2 11.4 6.6 13.9 0.0 1.1 3.1 2.5 0.9 11.8 <br />Baseline 52.7 23.7 14.6 27.9 27.3 40.4 0.0 15.4 17.9 17.3 8.1 29.9 <br />The average nitrate level for the entire site is 18.1 mg/L with a standard deviation of 11.8. Based on the groundwater <br />sampling plan approved by the DMG, a site wide average may be used plus 1 standard deviation to establish <br />background levels. This will establish a site wide baseline nitrate concentration level of 29.9 mg/L. <br />3.1.3 Fecal Coliform <br />Fecal Coliform has been detected in seven different instances during the sampling period. Six of these seven detections <br />were in 2005 at a concentration level of 2 mpn/100m1. The seventh detection was in well CRMW41 at a concentration <br />level of 22 mpn/100m1 in April of 2006. CRMW41 is located in a low lying area with groundwater located two to three <br />feet below the ground surface with several houses (approximately 3-6) located immediately upgradient of the well with <br />septic systems in place. There has been no mining activity within a ~/z mile of this well and potential contamination likely <br />resulted from surface water or septic system influences. <br /> <br />Annual 2006 Sampling Event -Lupton Lakes -3- January 2007 <br />