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2009 AHR McClane & Munger Canyon Mines Page 4 <br />will be disturbed by both mine sites amounts to 0.12 percent of the area of the East Salt <br />Creek drainage basin above the mines. <br />Surface water samples from East Salt Creek were obtained for all four quarters during <br />the water year at monitoring station SW-1, three of four quarters at SW-8. SW-4 only <br />had flow during the 15' quarter. Apparently the landowner is consuming or storing all of <br />the flow between SW-8 and SW-4. The results from all water samples collected during <br />the water year are presented in Table 4. The results from the samples collected from <br />East Salt Creek above and below the mine site are generally the same for all <br />parameters. <br />The McClane Canyon Mine did not discharge to East Salt Creek during the water year. <br />The following table compares the TDS values for SW-1 and SW-8. <br />PHC East Salt Creek <br /> SW-1 Upstream SW-8 Downstream Change <br />Total Dissolved Solids <br />4t Quarter 2008 3358 3518 +160 <br />1st Quarter 2009 1540 2090 +550 <br />2" Quarter 2009, 1560 1520 -40 <br />Since there was no mine discharge, the mine would not have degraded the quality of <br />water in East Salt Creek. The degradation in water quality is either caused naturally or <br />caused by the local landowners irrigation practices. Total dissolved solids (TDS) in the <br />above tables are laboratory values in mg/I. <br />Groundwater <br />Table 5 shows the results of groundwater sampling during the water year. Baseline data <br />from the 1981 & 1986 monitoring is also shown. Baseline data for GW-9 for the period <br />October 2007 through September 2008 is also included. Results of quality sampling are <br />consistent with the results from previous years. GW-4 in close proximity to a hay field <br />that is irrigated during dry periods and in danger of being eroded with an oxbow has <br />been replaced with GW-3. GW-3 is located adjacent to the road south of GW-4 and <br />should be outside of the influence of the irrigation of the hay field. Refer to Figure 4.2-2 <br />of the McClane Canyon Permit. The Division of Reclamation, Mining and Safety has <br />approved this substitution. Ground water wells GW-2, GW-4, GW-7, and GW-8 were <br />sealed during 2007. <br />Pond Discharges <br />There was no discharge from the McClane or Munger sediment ponds during the water <br />year. The sediment fences at McClane, Munger Canyon and Loma were maintained as <br />necessary. <br />Discharge monitoring from the sediment ponds and mines are regulated by the Colorado <br />Discharge Permit System Numbers CO-0038342 (McClane) and CO-0040827 (Munger). <br />Copies of Quarterly Discharge Monitoring Reports have been provided, under separate <br />cover, to the DMRS at the same schedule required by the CDPS Permit. They are included <br />in this report by reference.