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These assumptions, however, do not hold true for Well WW14. Prior to mining is • <br />the north area (November 1992), this well was almost always dry (see the 1993 <br />AHR for a complete listing of earlier water level data). Slate this particular <br />portion of the Wedge seam was dry prior to mining, spoils water will now <br />contribute 100$ O£ th0 water present. The Seneca II-W PHC uae6 a TDS valu0 Of <br />4500 mg/1 for its spoil water calculations, therefore well WW14 ie now expected <br />to achieve a similar TD9 value. <br />- Wolf Creek Coal. One mall monitors this coal seam. Well WWC4 exists in the <br />II-W South BxDanaioa area. Monitoring at this well mss resumed is July 1997 <br />after being diacontiauad in June 1985. This well, eo far, has not been impacted <br />by mining. <br />- Txout Creek 9aadetoae. Wall WPC201 is used as the water supply wall for the <br />mina £acilitiae. It displays as iacreeeing Tns tread. <br />Comparison of Ground Water Quality to Water Use Standards. 9CC has compiled a <br />lief of ground water standards for agricultural uses (Table 5). This list ie • <br />composed mostly of Colorado DeDertmeat of Health ground water standards (CDOH, <br />Req. 61) ae of March 1999 (footnotes A, B, or ao footnote), although other <br />agency atendarde have been used i£ the CDOH has ao agricultural standard £or a <br />particular parameter (sll other £ootnotae). <br />Table 6 provides a cos~arison of ground water quality to agricultural standards. <br />This Paradox datebaee generated table doee not include the unite of <br />concentration (mg/1 or ug/1) ~£or each parameter. Tha unite used for each <br />parameter are the same ae those listed oa the standards table (Table 5) and are <br />also the same ae those used in the water quality reports. The frequency column <br />oa Table 6 indicates the number of exceedencee out of the total number o£ <br />samples (i.e., 1/2 indicates one axceedance out of two samples). Below is a <br />summary of ataadarde that were exceeded. Given in parenthesis is the eouree and <br />use of each standard. <br />• <br />8 <br />