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,~'~', J.~. STOVER & ASSOC~ES IIIIII'IIIIIIIIIIII <br />2768 COMPASS DRIVE, SUITE 101 <br />GRAND JUNCTION, COLORADO 81506 <br />PHONE: (970) 245-4101, FAX 242-7908 <br />MINE ENGINEERING CIVIL ENGINEERING <br />MINE RECLAMATION CONSTRUCTION MANAGEMENT <br />~F~EivFn <br />September 29, 1995 OCT p q 1995 <br />Division of Minerals 8 Geoioyy <br />Harry Ranney <br />Division of Minerals & Geology <br />1313 Sherman St., Room 215 <br />Denver, CO 80203 <br />Re: Hydrologic Monitoring Reduction - TR-06 <br />Hamilton Mine <br />Permit C-91-078 <br />Dear Mr. Ranney: <br />The Division's letter dated September 20, 1995, transmitted its <br />adequacy review for the referenced technical revision application and <br />its review of the 1992, 1993 and 1994 annual hydrologic reports. <br />Following are Honeywood's responses to the Division' concerns: <br />1994 Annual Hydrology Report Review <br />1. The third quarter monitoring data for most of the sites was <br />collected. I misinterpreted the field notes when compiling the <br />data. The confusion was regarding the date of the first and <br />~~ second quarter monitoring. I assumed the April 24, 1994 <br />monitoring event was for the 1st quarter while Dave Andrews <br />`~ considered it the second quarter monitoring event. According to <br />I„v10~ Dave, all of the monitoring points were dry or had no flow during <br />115 ~~ the first quarter monitoring episode. <br />1~ 1 ~ Enclosed are revised data sheets for N-lA, N-2, AW-3, AW-4, AW-5, <br />~,.~,~ AW-6, AW-7, BW-1, BW-2, BW-3, SP-1, SP-2, SP-3, SP-4, SP-5, SP-6 <br />and R-1. <br />2. The third quarter 1991 TDS value for R-1 of 2020 mg/1 is <br />O~ apparently incorrect, Since no other laboratory data is <br />available for this monitoring period, the TDS value will be <br />deleted from the record. <br />Q5 3. Springs 3, 4 & 5 were dry during the 1st, 2nd, and 4th quarters. <br />,,f-` TR-06 Review <br />6~ 1. No comment required. <br />2. No comment required. <br />~3. The hydrologic monitoring schedule for the springs will be <br />revised to incorporate the Division's comments. <br />