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Mr. Kent Gorham <br />November 16, 1994 <br />Page 3 <br />Currently these wells are required to be monitored semi-annually for water <br />levels, field parameters, and water quality samples. As cured to the cisrent <br />re~~iremetrts, one water quality sample per site was omitted during 1993. <br />However, these omissions were offset by four additional field parameter aryl water <br />level visits per site occurring on a monthly basis during June through September <br />1993. <br />Stevens Clilch Colluvial Monitorira Wells <br />SMOl: <br />The above noted well is located adjacent to arri upgradient from the potential <br />subsidence zone. A substantial pre-mining water quality database had been <br />established for this location prior to 1993. Monthly water level and field <br />parameter data collected beginning in May 1993 gave no irriication that impacts of <br />any type might be occurring at this location. COVCC interned to collect a water <br />quality sample for docwrentation purposes in the fall of 1993, however, a dispute <br />with the larriowner on whose property this well was established precluded this <br />effort and was rat resolved in time to provide the opportunity to collect a <br />sat~le during 1993. <br />Currently this well is required to be monitored semi-annually far water levels, <br />field parameters, and water quality savg>les. As oottq~ared to current <br />requirements, two water quality samples were omitted during 1993. These omissions <br />were offset by two additional water level and field parameter visits occurring on <br />a monthly basis in June and July 1993. In addition, extensive data collection <br />from wells SM02 and SM09, both completed within the same aquifer monitored by <br />well SMO1, was aocrn~lished during 1993. As compared to current requirements, <br />1993 monitoring of wells SM02 arri SM09 paoduoed twenty-two additional water level <br />and field parameter visits arri six additional water quality samples. <br />Consequently, shallow graudwater in the vicinity of well SMO1 was carefully <br />monitored aIld evaluated even though the particular monitoring r-a~rniirements in <br />effect at well SMOl were not met. <br />SM03: <br />Well SM-3 is located outside the potential subsidence zone. No mining which <br />could be reasonably expected to affect this shallow aquifer has taken place to <br />date. .~dvanoe mining occurred in the vicinity of this well during 1981 and 1982. <br />A sufficient hydrology database consisting of water level, field parameter, and <br />water quality information had been established prior to 1993 to define the <br />hydrology at this location. During 1993, no new mining activities with the <br />potential of creating detectable impacts occurred in the vicinity of well SM03. <br />Currently this tell is not required to be monitored further until one year prior <br />to reinitiating development. of the Fast Mine. As owtgaared to current <br />requirements, no monitoring omissions occurred during 1993; five additional water <br />level and field parameter visits oocisred and one additional water quality sample <br />