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<br />J . ~ . STOVER & ASSOC TES <br />2768 COMPASS DRIVE, SUITE 101 <br />GRAND JUNCTION, COLORADO 81506 <br />PHONE: (303) 245-4101, FA% 242-7908 <br />MIRE ENGId66RING <br />HIRE Rcr`r-auaTIOd <br />March 31, 1994 <br />S. S. Shuey <br />Division of Minerals and Geology <br />1313 Sherman St., Room 215 <br />Denver, CO 80203 <br />Re: Somerset Mining Company <br />Hydrologic Monitoring <br />Permit C-81-022 <br />Dear Mr. Shuey: <br />iiiiiiiiiiiniiiiii <br />sss <br />CIVIL ENGIdEERIRG <br />COdSTRUCTIOd MANAGEIO:dT <br />~ECE;Vtr, <br />APR ~ 51994 <br />,:. ; <br />.::r r ~...... <br />.,. ~ r~,.. , ~, . <br />The Division's letter dated March 22, 1994, requests justification <br />from Somerset as to why certain hydrologic monitoring was not <br />performed during January and February 1994. Somerset did attempt <br />to perform the scheduled monitoring on an unrecorded date in <br />January and on February 21st. The monitoring scheduled to be <br />performed during January and February is as follows: <br />1. -Springs 7 - 11 <br />2. North Fork of the Gunnison <br />3. Nine Ephemeral Drainages <br />4. Portal Drop Inlet <br />5. Monitoring Wells SC-1, SC-2 <br />River - Upstream & Downstream <br />and SC-3 <br />An attempt was made to monitor Springs 7 - <br />and February. The sample point for Spring <br />located at the north end of a culvert in <br />Highway 133. It was frozen and snow cov <br />sampling was attempted. The remainder of <br />frozen and snow covered. <br />11 during both January <br />8, the Oliver Mine, is <br />place under old State <br />Bred during both times <br />the springs were also <br />The Divisions letter indicates the North Fork of the Gunnison River <br />was open and flowing according to Division photos taken on February <br />23, 1994. Somerset does not dispute this fact. However, there was <br />ice along the bank of the river that made it hazardous to collect <br />water samples. Somerset was working with the Colorado School of <br />Mines (CSM) during February and March to initiate and aquatic <br />impairment study. Personnel from CSM needed to get into the river <br />to perform sampling for the study. On March 9th, Somerset notified <br />CSM that ice on the river bank had melted so the study could <br />proceed. <br />During both January and February the nine ephemeral drainages were <br />monitored and found to be snow covered. None of the drainages had <br />