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• Qunlity to Water Dee Standards, will list those eamplea that exceed water use <br />standards. <br />Data for each well is ADDendix D begins with a listing of the water quality data <br />collecta8 during this year, followed by remarks explaining the sampling <br />procedure. After the remarks is a statistic report representing baseline (i.e., <br />preminiag) data for each wall (when available). Oa this statistics report, <br />"ceaeored data^ refers to analytical values that were below the 8atactioa limit, <br />which were ceaeored from the min/max/mean calculations. The time frame for <br />baseline conditions ie listed wader 'conditions spec ifled^ at the bottom of each <br />page. This ie followed by a plot of TDS versus time for the entire period of <br />record. The regreeaioa line oa this Dlot is generated by a method known as <br />LOW8S5 (Locally Weighted Scatter plot 8moothiag). A amootbnaee factor of 1 (on <br />a scale of 0 to 1) was used, which gives maximum smoothing. Finally, this plot <br />is followed by a table listing historic TDS values and percent milliequivaleate <br />for major ions. <br />• - Alluvium. Three wells monitor the 8ubbaraoa Gulch alluvium. Well WHALE-2 is <br />upstream of mine discharges. Its TD9 Dlot shows a slightly increasing trend. <br />This is likely due to the fact that this pasture has been irrignted starting is <br />1989. Well W8AL7-2 exists oa Hubbereoa Ouleh downstream of mine diachnrgee from <br />NPDE9 006. Its TDS plot shows a slightly iaereasiag tread. well WHAL10 exists <br />oa 006 Gulch (a Hubberaoa Gulch tributary) below NPDBS 006. TDS values at this <br />wall display an iaereaeing tread. <br />Gee well moaieora the 005 Gulch nlluvium (tributary to Dry Creek). This well, <br />WDAL11, ie normally dry. <br />Throe walla monitor the Saga Creek nlluvium. well WSAL12, located oa Saga Creek <br />adieceae to Surface Water Sites SW-52-FGd, ie downstream of ell Dotential mine <br />discharges. TDS values at this well have been increasing since it was drilled <br />in 1990. wall WSAL13 ie located below NPDE9 009 on the northern Sage Creek <br />tributary (this NPDES site, constructed is 1991, started flowing for the Eirst <br />time ever is 1996). Thies well disDlaye as increasing TD3 tread. Well WSAL14 <br />• exists on the southern Sage Creek tributary below NPDES 015 (constructed is <br />August 1999, first Elow February, 2000). Monitoring was resumed at this well in <br />5 <br />