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All other wells within 600 feet of the mining limits are either owned by CCWCD or are monitoring <br /> wells therefore groundwater impacts to these wells do not need to be addressed. <br /> See the attached Piezometer Location Map, and Piezometer Data Summary, which show the <br /> locations of monitoring wells around the perimeter of the site that CCWCD has either installed or <br /> has access to, and the groundwater level data that has been collected for each well. The <br /> groundwater monitoring data will be provided for what has been done to date with this permit <br /> application and then submitted in the annual report for the pit to the DRMS after approval of the <br /> permit application. <br /> Groundwater Quality Monitoring Plan <br /> The majority of the mining operations at this site will be within the slurry wall lined area. The <br /> areas outside of the slurry wall will be limited to the scale house and haul roads for trucks <br /> coming into and out of the pit, and stockpiles, which are not likely to affect groundwater quality. <br /> To establish pre-mining groundwater quality at the site CCWCD will have two monitor wells <br /> sampled quarterly. The upgradient monitor well that will be sampled is MW-3 and the <br /> downgradient monitor well that will be sampled is MW-1. The samples will be taken by a <br /> qualified consultant and then tested by SGS Laboratories for the analytes listed in Tables 1-4 of <br /> the "Basic Standards for Groundwater." <br /> The quarterly sampling will continue until 5 quarters of data has been established. Once the <br /> baseline has been established, we would recommend annual sampling to monitor the <br /> groundwater quality. The groundwater quality sampling data will be provided for what has been <br /> done to date with this permit application/adequacy review and then submitted in the annual <br /> report for the pit to the DRMS after approval of the permit application. CCWCD will notify the <br /> DRMS within 7 days of receiving a lab report that indicates any of the standards set forth in <br /> Tables 1-4 have been exceeded. If a lab report shows an exceedance, a new sample will be <br /> taken to verify exceedance or discount potential lab contamination. <br /> Central Colorado Water Conservancy District <br /> A J&T Consulting,Inc. Sweet Valley Pit <br /> DRMS 112 Permit Application <br />