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Ten springs which are present in or adjacent to the permit area were chosen for <br />further study. At each of these sites, three water quality and discharge <br />measurements were made during the summer and fall of 1983. Typically, quality <br />and quantity varied from spring to spring. <br />In general, the water was very hard with average TDS values ranging from 458 mg /1 <br />to 2,150 mg /1. Sulfate was generally more dominant than bicarbonate. All but two <br />springs experienced a decline in flow during the course of the summer. Five had <br />dried up by late August, three others flowed less water during base flow and two <br />were flowing at about the same rate in October as in June. <br />Three springs, Olson Spring (5 -45 on Dry Creek), S -5 (on an 006 Gulch tributary), <br />and 5 -41 (in the 006 Gulch channel), were projected to be impacted by mining <br />within the original permit area. 5 -41, which fed a registered stock pond (Temple <br />Pond No. 2) was mined through and was buried in spoils in 1998. Pond 006 will <br />replace the Temple Pond No. 2 as a stock water impoundment. S -5 has been <br />observed to flow on only three occasions; in the spring of 1983, 1997 and 1998. <br />Olson Spring is an adjudicated domestic water right. Conductivity of the Olson <br />Spring has displayed a decreasing trend. <br />Two additional native springs occur along Hubberson Gulch upstream from the <br />potential influence of mining in the original permit area, but downstream from <br />mining activity in the south extension area. 5 -49 was located in the 016 Gulch <br />directly above the Pond 016 Site. The spring was developed with a 4 inch PVC <br />pipe that flowed into a metal stock tank. It was sampled between August 1997 and <br />August 2001, when it was abandoned and subsequently mined through. S -7 serves as <br />the non - potable water supply for the Smith Ranch on Hubberson Gulch in Section <br />21. Sampling was discontinued in 1990 but reinitiated in 1999, due to its location <br />downstream from south extension area mining. Monitoring was conducted between <br />1999 and 2005, when discontinuance of monitoring was approved in TR -52. TDS <br />values peaked in 1997, and decreased in subsequent years. <br />A discussion of projected impacts can be found in Section III F. - Assessment of <br />Probable Hydrologic Consequences of Mining. <br />SCC performs a spoil spring survey following snowmelt each year, with locations of <br />springs of greater than 5 GPM added to the monitoring program, and with spring <br />location and monitoring data to be included in subsequent Annual Hydrology <br />Reports. One full -suite sample and field parameters samples are collected each <br />year. <br />Surface Water <br />Seneca II -W Findings Document 32 C- 1982 -057 <br />Permit Revision No. 6 January 6, 2012 <br />