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| Avolio Unit near Avella, Pa. |
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| Day Unit near Trinity South Elementary
School in Washington, Pa. |
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| Chappel Unit on Brush Run near Buffalo, Pa. |
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| Best Unit impoundment on Wotring Road in
Buffalo, Pa. |
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Marcellus Shale drilling pad construction
on
a Washington County Pennsylvania farm |
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| New Marcellus Shale impoundment
construction |
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| MarkWest cryogenic plant near Houston, Pa. |
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| Drugmand Unit near Hickory, Pa. |
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| Marcellus gas well flaring |
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| Costanzo drilling site near Avella, Pa. |
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| Best Impoundment in Buffalo, Pa. |
|
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| Best Unit on Wotring Road in Buffalo, Pa. |
|
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| Marcellus Shale impacts near Avella,
Pennsylvania |
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Sierzega Unit near Amity, Pa.
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