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Characteristics & Treatment of Mine Drainage in the Anthracite ...

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300<br />

250<br />

200<br />

150<br />

100<br />

50<br />

0<br />

SWATARA CREEK AT RAVINE, PA<br />

SO 4 (mg/L)<br />

BMPs<br />

1955 1965 1975 1985 1995 2005

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