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• Surface Water Sita SW-52W-FC1 (WSHF1). This Bite ie located on HubWrson Gulch dornetraam <br />of the 006 Gulch confluence. It has bean monitoreQ since July 1979. Aaviex oP its <br />hydrograph rawals the high peak flow since 1986. The TDS plot indicates a decreasing <br />trend. The 9aneca II-W PHC pradiets on irrigation season (Nay-9eptambar) swrage TD9 <br />wlue of 2193 mq/1 !or this site, while a calve of 895 mg/1 was observed this yeaz. <br />• <br />NPDE9 005 (NPDESS). This sediment pond is located in the north mining area on a tributary <br />to Dry Creak referred to ae ths 005 Gulch. Construction of this pond was completed in <br />July 1992 sad the first diechazga occurred on April 22, 1993. Tha rater yeaz awraga <br />flows (lrom weekly measurements) since this pond began to discharge aze: <br />1997 0.033 cfs <br />1996 0.015 cfs <br />1995 0.015 c!e <br />1994 no flow (very lox anoxpack runoff this year) <br />1993 0.116 cfs (pond vas dawatered to repair a leaking daratarinq line) <br />Review oP this site's TDS plot indicates on increasing trend. <br />Surface Water Site SW-32W-SGS (WSDS). This vita ie located on Dry Creek and ie the <br />Furthest downstream surface rates site for this side of Seneca IZ-W. Monitoring at this <br />Bite began in March 1983. Reviex of its hydrograph again shows the highest peak flow <br />since 1955. Tha TDS plot indicates a decreasing trend. The Seneca II-W FHC predicts and <br />awraga irrigation season TDS calve of 2245 mg/1 at this site, rhile a calve o! 1145 m4/1 <br />was observed. <br />Surface Water Site 9W-S2W-FGS (YSSF3). This site ie situated on Saqe Creak upstream of <br />the impacts from the Seneca II-W Mine (and also SCC'e Yoaet Nine). Monitoring at this <br />site commenced in September 1990. Revier of the hydrograph indicates the second highest <br />peek flor on record occurred this yeaz. Tha TDS trend for this site is decreasing <br />slightly. <br />NPI189 009 (NFDES9). Thi^ vita is situated on a tributary to Sage Creak and rae <br />constructed in October 1991. This site pored for the first time awr on April 16, 199fi. <br />Tha rater year awraga !lore (from raekly sieasusemente) since this pond began to dischazga <br />• are: <br />9 <br />