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(Page 21 MINE ID # OR PROSPECTING ID # M-1987-064 INSPECTION DATE 8129102 INSPECTOR'S INITIALS RCO OBSERVATIONS This partial inspection was performed by the Division as part of its monitoring of Construction Materials 112 In-stream permits. The operator was contacted about the inspection, and the operator's representative named on page one was present during part of the inspection. The southern part of the permitted area, including the access road, office, scale, processing plant, shop, and stockpile area were inspected. The northern part of the permit, being main{y extraction areas of the gravel bars, was not inspected at this time. The permit ID sign was posted at the entrance gate. Markers were observed along the western boundary. Most of the remainder of the boundaries are either on the banks themselves or in the river, and there are few markers. There was a lot of portable equipment parked in the equipment yard. The office, shop and scale structures are still present. The fuel storage tanks are still present, and there is still some sign of spillage during refueling operations. The operator stated that stained soil is picked up periodically, and will continue. The southern end of the fuel containment still has the drain outlet, though piping has apparently been added to help contain spills from the tank. The soil clean up must continue, as should monitoring for spills and leaks, but this inspector would prefer to see better containment {impermeable pad with berms) for the refueling area, and an improved drain outlet (valuing, concrete exterior drain box) outside the concrete containment structure. Though there is no problem at this time, it is felt that these changes can help by better containment, easier handling and/or clean up, and easier monitoring for contamination. If there are questions, please contact this office. If increased spillage is noted at the next inspection, there may be a problem. There is a concrete truck clean out pit near the shop building. Regular retrieval of the hardened waste concrete and grinding of the pieces occurs at this location. The ground concrete is piled at the top of the river bank, with little setback or barrier to contain the pile. There is a potential for careless piling to cause an accidental release of this material to the river. No evidence of a past release was observed, but the potential is there. The operator may take any of several steps to prevent such an occurrence: pull back the pile and provide a setback distance, and/or place concrete barriers back from the edge of the bank to define and control the toe of the pile, and/or begin piling the material farther from the river. Other types of items, such as timbers, metal pieces, tires, etc., are piled near the bank elsewhere. The operator should inventory what items are too close to the edge for already down the bank) and pull them back. Care should be taken to avoid allowing these items to enter the river, The bond amount was reviewed in 1999, at which time it was felt to be sufficient to perform the required reclamation. It is again scheduled for review. Any increase will be sent to the operator for review. There were no additional items observed or discussed. No problems exist at this time. All responses or questions about this inspection report should be directed to this inspector at the Division's Durango Field Office. The address is: Division of Minerals and Geology, 701 Camino del Rio, Room 125, Durango, Colorado 81301; telephone 970/247-5193, or fax 970/247-5104. I & E Contact Address cc: Tom Gillis, DMG ^ CE NAME OPERATOR STREET CITY/STATE/ZIP David Dillon Sandco.lnc. P.0. Bax 4440 Durango. CO 81302 ^ BL ^ FS ^ HW ^ HMWMD ICHI ^ SE ^ WOCD (CHI ^ OTHER I, Bob Oswald, certify that on the signature date shown on page one, I deposited a true and complete copy of this entire inspection report in the United States mail, first class postage paid, to the operator of record for this site at the address indicated, and to those others designated in this report to receive copies (DMG per~-s{{bo/~(nn~el ~exceptedl. . Signature "/%