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Effect of Burlington Mine Pond on Metal Concentrations in Little James Creek Joe Ryan University of Colorado Lefthand Watershed Oversight Group December 6, 2005
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Denver Public Library X-2579 Denver Public Library X-61529
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EPA Data Zinc dissolved aquatic life criteria, acute and chronic: 50-100 mg L -1 (depends on hardness)
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Our Data – Zinc, April 2003
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Our Data – Zinc, June 2003
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Summary Similar results for other metals copper, lead Burlington Mine cleanup reduced erosion, contact with waste rock pond still flowing no clear improvement High concentrations downstream Burlington Mine pond still a source Emmet Mine probably bigger source
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Lefthand Canyon Rd Sawmill Rd California Gulch Rd White Raven Mine Captain Jack Mine and Mill Big Five Tunnel Lefthand Canyon Rd To Ward
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Tina M. Winwood A.P. & T.S. Brown Toy L.B. & Lucian S.F. Bird Dog Properties LLC Bird Dog Properties LLC Bird Dog Properties LLC Bird Dog Properties LLC Bird Dog Properties LLC Bird Dog Properties LLC Peter P. Brady Ameriquest Mortgage Co. Captain Jack Mining Ltd. David E. Van Dyke Captain Jack Mining Ltd. Bird Dog Properties LLC Bird Dog Properties LLC Boulder County W. Andrew Ketchin Captain Jack Mining Ltd. AR Tiedemann & RL Vogel J.M. & M.J. Shaffer W. Andrew Ketchin J.M. & M.J. Shaffer WV Mickey Jr. & R Patrick Boulder County AR Tiedemann & RL Vogel Boulder County Grover E. Burdine Boulder Co. U.S. Govt. U.S. Government A.P. & T.S. Brown Boulder County
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