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•, r' .. • (Page 2) • MINK ID f OR PROSPECTING ID / M-88-081 INSP$CTION DATE 9-25-95 INSPECTOR'S INITIALS ACS Thies report cietaila observations made during the first of two site inspections made during September and October of 1995. No operating personnel were present at the Bite for this inspection; i;he Division had been unable to contact the operator by telephone on 9/22/95. This inspection was conducted in response to complaints registered by citizens living near the mine. Because the operator was not on-site for this inspection, moat of the citizen complaints ax's addressed in the second inspection report. Affected lands within the permit area are securely fenced with multi-strand barb wire or chain link. No entrance sign, required under Rule 3.1.12 of the Mineral Rules and Regulations of the Mined Land Reclamation Board, was posted at the site. See PB ~1 listed on the last page of this report. Soil suitable for use in reclamation has been stockpiled adjacent to and north of the fenced area, just above the driveway. The soil pile ie stabilized against erosion by established vegetation. The operator is sinking a shaft near the center of the fenced area. The shaft is collared in a concrete slab. The Phil Sheridan Lode Reclamation Permit indicates that an ad it would be driven into the hillside. One of the considerations related to issuance of the permit was vertical distance between the proposed workings and the groundwater table. Because current operations involve sinking a shaft, rather than driving a tunnel, and because this change in operating procedure could potentially result in a different set of impacts than was originally anticipated at the time of permitting, the operator will be required to submit a technical revision to the permit that will describe in detail the proposed extent of underground workings that will be opened-up and/or rehabilitated. See PB /2 listed on the last page of this report. Development rock from the shaft is being dumped into an historic collapsed shaft just to the northeast, and outside of the permitted area. The collapsed shaft ie just across the driveway from the main gate to the mine yard. The development rock was examined, and found to be a fresh, (i.e. unaltered), slightly foliated rock, of granodioritic composition, from the Boulder Creek Granite intrusive. The feldspars in the development rock samples are unaltered; only alight low-grade alteration of biotite to chlorite was observed. Pyrite and other sulphides are highly disseminated in this rock, and made up an insignificant percentage of the whole rock in the samples examined. Although the shaft where the development rock is being dumped ie outside the permit boundaries, the Division finds that backfilling a hazardous mine opening with the chemically inert rock that ie currently being generated to be a beneficial use of the development rock. Once this shaft is backfilled, however, the operator must dispose of waste rock or development rock within the permit area boundaries, and in accordance with the approved reclamation plan. The Division recommends that the backfilled shaft be securely fenced once backfilling is completed. The mine yard is benched into an east facing hillside. A small drainage ewale or draw enters the mine yard from the east. Run-off in this draw ie ditched around the mine yard on both aides of the c9ieturbed area. The following facilities were observed on the site: Mine shaft and head-frame; hoist house constructed of corrugated metal and enclosed on three aides; motor-home and propane tank; portable generator, compressor and ventilation fan; a small shed of particle board construction; two explosive magazines. I & E Contact Address cc: Carl Mount, DMG ~ CE NAME Rockv Conner ~ BL OPERATOR Eaet-West Mininc Coro., Inc. ~ FS STREET 5119 Williams Fork Trail, X209 ~ HW CITY/STATE/ZIF' Boulder, CO 80301 ~ HMWMD (CH) ~ SE ~ WQCD (CH) OTHER