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STATE Of COLORADO
<br />DIVISION OF RECLAMATION, MINING AND SAFETY
<br />Department of Natural Resources
<br />1313 Sherman St., Room 215
<br />Denver, Colorado 80203
<br />Phone: (303) 866-3567
<br />FAX: (303) 832-8106
<br />May 7, 2010
<br />
<br />COLORADO
<br />D I V I S I ON OF
<br />RECLAMATION
<br />MINING
<br />- SAFETY
<br />Bill Ritter, Jr.
<br />Governor
<br />James B. Martin
<br />Mr. Randy Whicker Executive Director
<br />Health Physicist / RSO Loretta E. Pineda
<br />,l Director
<br />?/o = Cotter Corporation
<br />P.O. Box 1750
<br />Canon City, CO 81215
<br />Re: Cotter Corporation, Schwartzwalder Mine, Permit No. M-1? 977-300, Request to
<br />sample monitoring wells and surface water at Schwartzwalder Mine
<br />Dear Mr. Whicker:
<br />The Division of Reclamation, Mining and Safety (DRMS) requests access to the
<br />Schwartzwalder Mine site for the purpose of collecting water samples the week of 17 May
<br />2010. We wish to coordinate our visit with Cotter's routine monthly/quarterly sampling trip.
<br />Sites to be sampled will include ground water monitoring wells and surface water from
<br />Ralston Creek. Other features may be sampled if observed and considered relevant (e.g.,
<br />runoff). Tony Waldron and I will be the only DRMS staff attending.
<br />The exact number and locations of wells and surface water sampling sites will be determined
<br />on site, but we expect to collect between 8 and 12 samples total. We will submit the samples
<br />to an independent laboratory. The radiological samples will probably be submitted to the
<br />CDPHE laboratory.
<br />The surface water analytical suite will include the following:
<br />Dissolved: Al, Fe, Mn
<br />Total: Al, As, Ba, Ca, Cd, Cr, Cu, Fe, Hg, K, Mg, Mn, Mo, Na, Ni, Pb, Se, U, Zn
<br />Anions: Alkalinity, Cl, F, N03, P, S04
<br />Radiologicals: Radium 226
<br />The ground water analytical suite will include the following:
<br />Dissolved: Al, As, Ba, Ca, Cd, Cr, Cu, Fe, K, Hg, Mg, Mn, Mo, Na, Ni, Pb, Se, U, Zn
<br />Total: Al, Fe, Mn
<br />Anions: Alkalinity, Cl, F, N03, P, S04
<br />Radiologicals: Gross Alpha, Gross Beta, Radium 226
<br />Parameters that will be measured in the field will include Temperature, pH, Specific
<br />Conductance, and Dissolved Oxygen. DRMS will provide all of our own sampling
<br />Office of Office of
<br />Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines
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