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i Paye ~; MINE ID q OR PROSPECTING ID 8 M-1989-029 INSPECTIOIJ DATE 3/28/00 INSPECTOR'S ItJITIALS CLR OB53RVATIONS Tlris inspection was done in response to a complaint received on March Id, ?000, by the Division. The complaint included a specific list o' problems, outlined below, az well as photographs with several more problems mentioned. I) Dustprottlems The day of the inspection was overcast, and it had rained the night before, so this was no[ the optimum time to observe dust activity. Eiowever, from what was observed during the tour of the site, it appeared that the stockpiles in the processing area were sufficiently contained and that no dust was blowing away from the main industrial area. Some dust waz observed rising from the [Hain excavation area; the stockpiles and excavation area are watered 3 to 4 times a day via water truck. 2) Odor problems As was mentioned previously, i[ had rained the day prior tc the inspection, so it was unlikely a significant odor problem could be observed. Mark Helm mentioned that an adjacent lot contains a truck yard, with fifteen or so vehicles stored on-site, which could also be at least partially responsible for any odor problems. CAMAS is currently operating within the parameters of the Colorado Departmen[ of Public Health and the Environment's air emissions permit. 3) Wildlife: (a) that dewatering had killed well over 100 bin: 12in. cottonwood [tees off the permitted area. At this tune, none of the trees in the adjacent area have much cover on them, however, many do display signs of budding and life. While some trees within the permit area may have died due to either old age or from the effects of dewatering, no significant stands of dead trees were noted during this inspection. However, a second inspection will be made later this year to follow-up on this issue, when a better comparison can be made between health and dying trees. It would be appreciated if the complainant could specify the exact area where the die-off is occurring, so that DMG can document the occunence and azk that appropriate mitigation meazures be taken. (b) that dewatering is done with buried asphalt and concrete submersed around the dewatering pumps, which discharge directly to the St. Vrain river. An area where concrete which haz been slated for tecycGng is being stored, has become a secondary holding pond for runoff from the site. water from the prtxess and stockpile areas was originally pumped either into the SC Vrain (in accordance with the PIPDI.S pemrit) or to the completed Lake on the east side of the site. As a temporary measure, this water was placed in the shallow depression which abuts the concrete stomge area. When the water level rises. high enough, the water discharges through ::pipe under the adjacent road into the constructed lake. This is not in the current permit mining pion. While there is no asphalt in this storage area, and the concrete haz been cured (thus decreasing the likelihood of any contamination to the water), [tie permit must be revised to either include these meazures for water and concrete storage, or the water must be siphoned over to the approved lake for permanen[ storage. The concrete stomge area would then not be used az a water containment azea in the future. (See PBI) (c) that wildlife in the area ate slowly losing their habitat. Many ducks, geese, and other birds were.observed in the area. The 100' setback f70m the property line near the St Vrain river is still be.ng observed. No other effects on the local wildlife could be piit-pointed. However, this inspection report will be forwarded on to the Division of Wildlife, so that they will be aware of concems expressed about the si[e. 4) Property values The Division of Minerals and Geology does not have jurisdiction over property value concems. All land-use questions and ~onin~ problems should be directed [o the County Planning and Toning department, which can analyze whether mining is an appropriate industry to be developed in this area.