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water to the creek. Furthermore, dependent upon local conditions, discharges from the predicted spoils aquifer may infiltrate the Hubberson Gulch alluvium. This water may flow through the alluvium downgradient to recharge the Dry Creek alluvium from which Olson Spring issues. It is projected by the applicant that, due to dilution, there will be no impact to Olson Spring quality which may be attributed to mining. An alluvial cross-section of wells in Hubberson Gulch upgradient of the spring will help monitor the advance of any plume in that gulch. A water quality monitoring plan was initiated at Olson Spring to provide baseline data and monitor impacts to this spring. Ten springs which are present in or adjacent to the permit area were chosen for further study. At each of these sites, three water quality and discharge measurements were made during the summer and fall of 1983. Typically, quality and quantity varied from spring to spring. In general, the water was very hard with average TDS values ranging from 458 mg/1 to 2,150 mg/1. Sulfate was generally more dominant than bicarbonate. All but two springs experienced a decline in flow during the course of the summer. Five had dried up by late August, three others flowed less water during base flow and two were flowing at about the same rate in October as in June. Three springs, Olson Spring (on Dry Creek), S-5 (on an 006 Gulch tributary), and S-41 (in the 006 Gulch channel), were projected to be impacted by mining within the original permit area. 5-41, which fed a registered stock pond (Temple Pond No. 2) was mined through and was buried in spoils in 1998. Pond 006 will replace the Temple Pond No. 2 as a stock water impoundment. S-5 has been observed to flow on only three occasions; in the spring of 1983, 1997 and 1998. Olson Spring is an adjudicated domestic water right. Conductivity of the Olson Spring has displayed a decreasing trend. Two additional native springs occur along Hubberson Gulch upstream from the potential influence of mining in the original permit area, but downstream from mining activity in the south extension area. S~9 was located in the 016 Gulch directly above the Pond 016 Site. The spring was developed with a 4 inch PVC pipe that flowed into a metal stock tank. It was sampled between August 1997 and August 2001, when it was abandoned and subsequently mined through. S-7 serves as the non-potable water supply for the Smith Ranch on Hubberson Gulch in Section 21. Sampling was discontinued in 1990 but reinitiated in 1999, due to its location downstream from south extension area mining. S-7 conductivity displays an increasing trend. Seneca II-W Findings Document 35 November 17, 2004 Permit Revision No. 4