Contamination Associated with Active and Abandoned Hard-Rock Mining
CLICK PHOTOS FOR AN ENLARGED VERSION
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Silverton, CO; Upper Animas watershed in background,
site of USGS AML Init.
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Prospect Gulch, Cement Creek, Upper Animas
River Basin, CO
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Sample Processing at stream tracer test
on California Gulch, Animas River, CO
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Electrofishing in the Upper Animas River,
CO
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Locating inflows and springs to Mineral
Creek CO, prior to tracer test.
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Silverledge Mine structure and waste-rock
pile adjacent to Mineral Creek, CO.
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Site of continuous WQ sampling, North
Fork Animas River Tracer Test.
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Data logger control and injection-pump
apparatus used for stream tracer testing.
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Collecting invertebrate samples in the
Upper Animas River, CO
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Equipment trailer -- bringing tracer
tests to Rocky Mountain Streams.
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Terrain of Rocky Mountain
Streams Upper Mineral Creek.
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Spacing sampling points priori
to tracer test on Mineral Creek, CO.
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Comet Mine Mill, MT with glory hole where
valley-fill tailing was placed
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Abandoned Mine Land Site, MT
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Crystal Mine at Uncle Sam Gulch, MT
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Filling holding tank with tracer mixture
prior to injection.
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Arkansas Rive CO, affected by mining activities
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Pinal Creek Valley, circa 1900
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Pinal Creek Valley, recently
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Perennial reach of Pinal Creek
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Propane injection test to measure
degassing at Pinal Creek, AZ
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NaCl tracer test to determine natural
attenuation of metals, Pinal Creek, AZ
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Downstream view of tracer test
and sampling crews in distance.
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MINIPOINT sampler measuring metals
attenuation in shallow streambed sediments.
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Treating contaminated ground water.
Discharge of treated water from ground water remediation system
Pinal Creek, AZ
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Measuring chemistry of Pinal Creek
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Mine Dump at St. Kevin Gulch, Colorado,
(click photo for an enlarged version) |
