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(Page 2) MItE ID 1 OR PROSPECTING ID 1 11-8011 INSPECTION DATE 10-04-94 INSPECTOfl'S INITIALS SSS OBSERVATIONS fiis was a routine Division of Minerals and Geology IDNS) inspection of the Hillyer Gravel Pit leafed at the southeast corner of the City of Silverton, Colorado in San Juan County. The site is located within the annual flood plain of the Upper Anivas River. According to the Operator's Representative, Kevin Padrick, the site is often demolished in the winter by an avalanche. The site is located below a large avalanche chute. Because of the site location, to protect the drainage system from pollution, and to minimize unsi~tliness of the mine site, the operator must clean up and dispose of, or properly store all refuse and waste materials strewn about the site. This includes but is trot lieited to non-working machinery, scrap metal, trash, pallets, drums, cable, pipe, wood, batteries, conveyor belt and tires, all of which were observed on-site. Same of this trash is currently piled on the western edge of the pit which is also the river bank when flaw rates are high. Two areas were noted where water was being pumped from the river, one at the cement plant and one at the crusher site. The penit does not indicate that any water ri¢~ts have been secured for this consumptive use or that a penit for discharge of this water has been obtained. The operator must provide evidence of right to consume this water or refrain from pumping water from the river wtil such rights have been established through the State Engineers Office. Discharge of water from processing operations on site must cease until the operator provides evidence that the Colorado Departaent of Health - Nater Duality Control Division has been contacted regarding application for an HPDES permit. If the pumping of water from the river, and the reWrn of processing water to the river are operations that will no longer take place at the mine then the pumps should be removed and the penit should be revised to indicate that coritaent. There is no indication in the permit that a cement plant would be part of the mining operation. The operator needs to submit a technical revision W their permit to incorporate the cement plant or remove the plant and all associated items, irroluding the cement mixer trucks, from the site. If these items are Prot removed from the site they will 6e included in the reclamation band amount. In response to the passage of Senator Bil] 91-171 in 1991, which removed the (5000.00 financial warranty cap for 110121 mining operations, the Nined Land Reclamation Board directed DM6 to begin recalculation and adjustaent of reclamation bonds for all permitted 11012) operations. This process is ongoing. Review and recalculation of the frond for your operation will take place over the next few weeks. A copy of the recalculated estivate will be forthcoming. fie Corps of Engineers was contacted, concerning wetlands, during the penitting of this vine. Due to the recent changes in regulations and due to the obviously high iron content of the gravel at this mine, the operator should contact the Corps of Engineers to verify that the vine remains in compliance under their jurisdiction. Kevin Padrick did indicate during this inspection that he was in the process of obtaining NPDES, 404, Stormwater pewits and would also contact the CDH Air Duality Control Division concerning an Emissions Permit. fie original pewit yaps included, as landmarks, streets that were never constructed in the town of Silverton. Therefore, it is not possible to determine, from these maps, whether or not the operation is within it's approved penit boundaries. The operator should provide evidence to clarify this siWation, specifically, explain why the site does trot line up with the streets indicated on the penit map. On August 1, 1991, a rule became effective which specifies: At the entrance of the sine site the operator needs to post a sign, which is clearly visible fray the access road, with the following: (a) The nave of the operator, Ib) Specify that a DM6 penit has been obtained, and include; Ic) The Permit Number. The boundaries of the affected areas need to be marked by monuments or other markers that are clearly visible and adegate to delineate such boundaries.