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STATE OF COLORADO <br /> DIVISION Of MINERALS AND GEOLOGY Co <br /> Department of Natural Resources �e P <br /> O <br /> 1313 Sherman St., Room 215 <br /> Denver,CO 80203 1876 j <br /> Phone:(303)866-3567 <br /> FAX:(303)832.8106 Roy Romer <br /> Governor <br /> Michael B.Long <br /> Division Director <br /> April 9, 1993 <br /> J . A. Stover and Associates <br /> 743 Horizon Ct. Suite 205 <br /> Grand Junction, CO 81506 <br /> Re: Hamilton Mine Hydrologic Monitoring <br /> Dear Mr. Stover: <br /> Duriiig a recent review of the hydrologic monitoring p?arl for the <br /> Hamilton Mine. a few items that require some attention were noted. The <br /> IJCIIIIil UCI I<.ICIIL, IC� YY111 II=HUIIC jWU Ll/ aU&J111IL a icwi -3ivii GLL IV�.���� • <br /> 1 . Please make the following changes to the tables on page 3-2 of <br /> Appendix 3. <br /> A. Add flow rates and/or water level to the parameter lists. <br /> B. Add units of measurement to the analysis results and <br /> narameters lists <br /> ram' <br /> 0, 3pecify that all around water samples species will be <br /> dissolved. <br /> D. Specify that the species for all surface water samples will <br /> 1J."'. :J' G! 1`eL>•:V ^11IC c%lt.Cf:L for: - <br /> ? . Ammcnia (Unionized) <br /> 2. Aluminum (Dissolved) <br /> 3. Iron (Total recoverable and dissolved) <br /> 4. Manganese (Total recoverable and dissolved) <br /> 2. Please explain why baseline sample analysis show results below the <br /> detection limit. <br /> 3. Please add narrative in the text to describe the sampling is <br /> accomplished and how flow rate measurements are taken. <br /> 4. On page 2.05-36, please eliminate the statement "A hydrologic <br /> reclamation plan is not considered necessary at this time" . <br />