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2010 AHR McClane & Munger Canyon Mines Page 5 <br />Surface water samples from East Salt Creek were obtained three of four <br />quarters during the water year at monitoring station SW-1, two of four quarters at <br />SW-8. SW-4 only had flow during the 1St quarter. Apparently the landowner is <br />consuming or storing all of the flow between SW-8 and SW-4. The results from <br />all water samples collected during the water year are presented in Table 4. The <br />results from the samples collected from East Salt Creek above and below the <br />mine site are generally the same for all parameters. <br />The McClane Canyon Mine did not discharge to East Salt Creek during the water <br />year. The following table compares the TDS values for SW-1 and SW-8. <br />PHC East Salt Creek <br />Total Dissolved Solids SW-1 Upstream SW-8 Downstream Change <br />1S Quarter 2010 2210 2652 +442 <br />2" Quarter 2010 1240 1480 +240 <br />Since there was no mine discharge, the mine would not have degraded the <br />quality of water in East Salt Creek. The degradation in water quality is either <br />caused naturally or caused by the local landowners irrigation practices. Total <br />dissolved solids (TDS) in the above tables are laboratory values in mg/I. <br />Groundwater <br />Table 5 shows the results of groundwater sampling during the water year. <br />Baseline data from the 1981 & 1986 monitoring is also shown. Baseline data for <br />GW-9 for the period October 2007 through September 2008 is also included. <br />Results of quality sampling are consistent with the results from previous years. <br />GW-4 was in close proximity to a hay field that is irrigated during dry periods and <br />in danger of being eroded with an oxbow has been replaced with GW-3. GW-3 is <br />located adjacent to the road south of GW-4 and should be outside of the <br />influence of the irrigation of the hay field. Refer to Figure 4.2-2 of the McClane <br />Canyon Permit. The Division of Reclamation, Mining and Safety has approved <br />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 <br />water year. The sediment fences at McClane, Munger Canyon and Loma were <br />maintained as necessary. <br />Discharge monitoring from the sediment ponds and mines are regulated by the <br />Colorado Discharge Permit System Numbers CO-0038342 (McClane) and CO- <br />0040827 (Munger). Copies of Quarterly Discharge Monitoring Reports have been <br />provided, under separate cover, to the DMRS at the same schedule required by the <br />CDPS Permit. They are included in this report by reference.