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- Surface Water Site SW- S2W -FG4 (WSSF3). This site is situated on Sage <br />Creek downstream of the impacts from the Seneca II -W Mine (NPDES 009 and <br />015). Monitoring of this site commenced in September 1990. This site <br />recently displays an increasing TDS trend, with the peak value occurring <br />in April 2009. Baseline data for this site has been provided in Appendix <br />El of the 2010 AHR. <br />Springs. Spring data may be found after surface water data in Appendix <br />E. Data provided are a water quality report for the past two years, <br />historic flow measurements and a LOWESS plot of TDS. Baseline water <br />quality statistics for springs downstream of mining (when available) has <br />been provided in Appendix El of the 2010 AHR. Springs with a flow less <br />than 5 gpm (0.011 cfs) are analyzed for field parameters only. In <br />Appendix E, all native springs have a WSPG prefix (e.g., Spring 5 -45 = <br />WSPG45) while all spoil springs have a WSSPG prefix. <br />Spring 5 -46 is a developed spring first monitoring during the 1979 <br />spring. survey. This spring became part of the required monitoring <br />program in 2000. It is located immediately below the 005 Pond. The TDS <br />plot indicates an increasing trend. <br />Spring 5 -47 was first discovered by SCC personal in 1989 and was <br />monitored first in June 1990. It is a developed spring existing <br />alongside the mine entrance haul road just to the west of the Seneca II- <br />W Meteorological Station. This spring became part of the required <br />monitoring program in 2000. Its TDS plot indicates an increasing trend. <br />Spring 5 -50 is the discharge of the french drain that collects water <br />from the W -24 series monitor wells (located below Pond 16A) that failed <br />in 2003. This water was first sampled in September 2005. The W -24 wells <br />were finally abandoned in August 2007. Its TDS plot indicates a <br />decreasing trend. <br />Spring S -7 in an alluvial clearwell located adjacent to Hubberson Gulch. <br />It serves as the non - potable water supply at the Smith ranch. Due to the <br />17 <br />