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- ~~ i • (Page 2) • MINE ID # OR PROSPECTING ID # M-91-146 ZNS PECTION DATH_10-7 -_98 INSPECTOR'S INITIALS SSS OBSERVATIONS This was a complete inspection of the ZMK Gravel pit, conducted as part of the Division's routine monitoring program. The operator did not accompany the inspector during this inspection. The site boundaries are well marked on the upstream and downstream ends of the pit. Other boundaries are a little vague and should have additional boundary markers installed. The mine identification sign is in place and in compliance. A pit approximately ten feet deep is excavated in the south one third of the Phase I area. The floor of this excavation is dry though it is below the elevation of the adjacent river. A shallower excavation is located on the middle one third of the Phase I area. The shallower excavation has a screening facility in it. The approved permit indicated that no processing of any kind, including screening, would take place at this site. ZMK must remove this screen or submit an application for technical revision to include it in the mining plan. The monitoring wells appear to be functional, but the northern-most well needs to have a cap placed on the casing. There is approximately one acre of disturbed area south of the approved southern permit boundary. The extent of the disturbance appears to be tracks from a dozer that was building up the river dike, and doing some elope grading into the approved mine Bite. It is unclear if the operator breaches the dike upstream of the permit area, to allow flow to refill the pit during high water. If this is the case, then this could be construed as mining outside the permit boundary, or off-site impacts, and this area should be included in the permit boundary. If this is not the case, ZMK must explain the off-site disturbance, and why it is not mining related. In either case, the Division must receive a response to this problem, as indicated in the corrective actions on page 3 of this report. Spill containment for the hazardous materials on site is addressed by a concrete spill containment structure around large tanks. However, there are some partially filled barrels scattered around the equipment storage site that appear to contain other hazardous materials that should also be placed in a bermed spill containment structure. This is especially important at this site which is located in an area prone to spring flooding. I & E Contact Address NAME Robert Larson OPERATOR Monadnock Mineral Services STREET P. O. Box 85 CITY/STATE/ZIP Ourav. CO 81427 ScJ~y Sec.,2 ~W/ y , ~ ~ cc: Tom Gillis, DMG Cfi - Grand Jct ^ BL ^ FS ^ HW ^ HMWMD (CH) ^ SE ^ WQCD (CH) ^ OTHER NyN (L PcJ N,•tr~l Office