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Underlying aquifers are protected against adverse effects on quantity and <br />quality by: blasting controls in the pit and significant aquitards between the pit <br />and the Dakota/Cheyenne aquifer group. <br />The applicant's submittal complies with Rule 3.1.6 Water - General <br />Requirements by (a) agreeing with applicable Colorado water laws and <br />regulations governing injury to existing water rights; (b) complying with <br />applicable federal and Colorado water quality laws and regulations, and (d) <br />removing siltation structures after reclamation. <br />6. Has the applicant established groundwater points of compliance? (Rule 3.1.7(6)) <br />DMG has established groundwater points of compliance which are spelled out <br />in the proposed stipulations to the permit. The points of compliance will be a <br />downstream well in the St. Charles alluvial aquifer and the water supply well <br />located in the southwest quarter of the southwest quarter of section 18, <br />Township 22 South, Range 64 West, in the Dakota Aquifer. A third point of <br />compliance at the contact between the Codell Sandstone and the Blue Hills <br />Shale will be established down gradient of the sediment pond if water is <br />encountered at this contact during drilling of the two Dakota Aquifer wells. <br />7. Will surface and groundwater quality be protected from the potential impacts of <br />the blasting agents? (Rule 3.1.7 and 6.4.7(a) (b) and (c)) <br />The applicant has committed to protect the surface and groundwater from the <br />potential impacts of blasting. Page G-2 of their response to the DMG adequacy <br />letter indicates the following: Only use the amount of explosives per ton of <br />limestone required for efficient fragmentation; Use only trained and licensed <br />blasting contractors; Maintain a clean workplace with spills minimized and <br />quickly picked up; Sample all mine stormwater discharges for nitrates, nitrites, <br />and ammonia; Collect at least five quarters of baseline water quality data by <br />monitoring water in the St. Charles alluvium for nitrates, nitrites, and <br />ammonia, upstream of the point where Arroyo B discharges into the St. Charles <br />River; Install a monitoring well immediately below the mine discharge points - <br />drilled to contact between Codell Sandstone and underlying shale; Monitor and <br />report results from discharges as required by CDPHE discharge permit': The <br />steps included in the applicant's submittal comply with the requirements of <br />Rule 3.1.7 and 6.1.7(a) (b) and (c). <br />8. Does the applicant adequately specify how much water will be used in <br />conjunction with the operation, and the source of this water? (Rules 6.4.7(3) and <br />(4)) <br />The applicant has indicated on page G-3 of their response to tine DIVG <br />adequacy letter that. "The facility requires approximately 379 acre feet of water <br />per year; two-thirds for the plant and offices and one-third for dust control in