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Cover image for Characterization and effectiveness of remining abandoned coal mines in Pennsylvania

Characterization and effectiveness of remining abandoned coal mines in Pennsylvania

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Joyner - Microforms B300 I 28.23:9562 ✔ Available
Cover image for Reconnaissance of mine drainage in the coal fields of eastern Pennsylvania

Reconnaissance of mine drainage in the coal fields of eastern Pennsylvania

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Cover image for Water quality of large discharges from mines in the anthracite region of eastern Pennsylvania

Water quality of large discharges from mines in the anthracite region of eastern Pennsylvania

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Cover image for Water quality of large discharges from mines in the anthracite region of eastern Pennsylvania

Water quality of large discharges from mines in the anthracite region of eastern Pennsylvania

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Joyner - Fed Docs Stacks I 19.42/4:95-4243 ✔ Available
Cover image for Here and there

Here and there

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Cover image for Quality of water in mines in the Western Middle coal field, anthracite region, east-central Pennsylvania

Quality of water in mines in the Western Middle coal field, anthracite region, east-central Pennsylvania

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Cover image for Trap efficiency of a sediment-control pond below a block-cut coal mine in Fayette County, Pennsylvania

Trap efficiency of a sediment-control pond below a block-cut coal mine in Fayette County, Pennsylvania

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Cover image for Preimpoundment hydrologic conditions in the Swatara Creek (1981-84) and estimated postimpoundment water quality in and downstream from the planned Swatara State Park Reservoir, Lebanon and Schuylkill counties, Pennsylvania

Preimpoundment hydrologic conditions in the Swatara Creek (1981-84) and estimated postimpoundment water quality in and downstream from the planned Swatara State Park Reservoir, Lebanon and Schuylkill counties, Pennsylvania

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Cover image for Undermined in coal country

Undermined in coal country

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Cover image for Water-quality data for two surface coal mines reclaimed with alkaline waste or urban sewage sludge, Clarion County, Pennsylvania, May 1983 through November 1989

Water-quality data for two surface coal mines reclaimed with alkaline waste or urban sewage sludge, Clarion County, Pennsylvania, May 1983 through November 1989

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Joyner - Microforms B300 I 19.76:93-115 ✔ Available