Laserfiche WebLink
Forest Luke <br />Trapper Mining Inc. <br />Table 2 -Wells showing long-term increases in TDS <br />October 6, 1998 <br />Page 5 <br />Well Perorated Year Pre- 1997 Species Comment <br /> interval TDS mining TDS causing <br /> increase TDS (mg/1) increase <br /> began (mg/1) <br />GE-1 QR 1989 700 1000 SO, <br />GF-3 KLM 1982 800 900 SO, <br /> TDS dropped in last <br />GF-7 backfill (HI) 1988 1500 2300 SO, two yeazs; water <br /> level fluctuated in <br /> mid-1997. <br /> l <br />ill <br />GF-11 (QR <br />j 1990 SO, <br /> <br /> n <br />to <br />P-5 S 1985 1700 2500 <br /> S Mn, PO <br />a <br /> SO, levels jumped <br /> in last 2 yeazs while <br />P-8 3`" White SS 1984 ]200 3400 SO„ Ca water level in well <br /> rose from 15 ft. to 7 <br /> ft. <br />High levels of the following pazameters have been found in Trapper's wells in 1997 and in <br />previous yeazs: Se, N03, SAR, and Mn. The high concentrations appeaz to be a <br />continuation of natural, ambient conditions that existed prior to mining. <br />10. Reference to well GE-1 on page 6-2, 2nd paragraph, and page 6-3, 1st paragraph. <br />The reference on page 6-2 indicates that mining affected the water level in this well <br />through pit dewatering, but the reference on page 6-3 says that the increase in TDS in this <br />well was "probably not caused by mitring". Please explain your basis for concluding that <br />the elevated TDS was not caused by mining. <br />11. Sources of Cottonwood and Wapiti springs. Why aze Cottonwood and Wapiti springs <br />considered spoil springs given their locations on unmined ground? <br />12. Scrubber sludge data previously requested io RN-03/PR-04. It is the Division's <br />understanding that Trapper has plans to submit a chemical analysis of scrubber sludge <br />pending completion of the analysis in coordination with the Craig power plant. What is <br />the status of the chemical analysis? <br />