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<br />Memo/Re:CCMC No 1 Mine Md-trm Rvw - 2 - <br />July 24, 1986 <br />6. Did the extensive exploration and drilling program affect the <br />ground water regime through such actions as intraformational <br />communication in uncased or unplugged drill holes? If so, how <br />should CCMC mitigate this potential problem? Has drill hole <br />reclamation and plugging been adequate? If ground water problems <br />do occur, what, if any, effect would this have on the regional <br />water resource picture? <br />7. The clean water diversion ditch on the west and northwest side of <br />the mine pit, although functioning, seems to be experiencing rapid <br />erosion and possible head cutting. What can be done to <br />characterize this if a problem exists and mitigate the problem if <br />necessary? The soils in the mine area resemble a loess-like soil; <br />if this is the case, then what are the erosion properties of this <br />soil? <br />8. CCMC has a large number of abandoned mines on its property. What <br />can be done to restrict access to these abandoned mines, and what <br />parts of the ACT and Regulations can be cited to support MLRD's <br />position on making their property less hazardous to the public <br />since parts of the property have to remain open for county <br />right-of-way? <br />9. Check stipulations from findings document dated June 16, 1983 <br />(attached) that apply to your particular field of expertise and <br />make sure these stipulations have been adequately addressed. <br />10. Are the certifications for critical structures present or <br />up-to-date? <br />11. Are all existing permits other than MLRD current? <br />These issues are to be assigned in the following manner: <br />Person Issue No. <br />3e~t~ ~~11 (esp. regs. for No. 8) <br />Gregg 1,2,3,9,10 (embankments and roads if applicable) <br />Candy 3,5,7,9,10 <br />Jim 5,6,8 <br />List of stipulations to be reviewed for adequacy: <br />Person Sti ulation (see attached list) <br />ems- ,p ,16,18,19 <br />Gregg 6,7,8,9,12 <br />Candy 1,2,3,13,14 <br />Jim 4,5,17 <br />