1 | Add to Reading ListSource URL: pcamna.orgLanguage: English - Date: 2007-06-10 12:33:46
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2 | Add to Reading ListSource URL: www.dcnr.state.pa.usLanguage: English - Date: 2013-02-04 10:52:11
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3 | Add to Reading ListSource URL: epa.govLanguage: English - Date: 2012-05-16 14:40:26
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4 | Add to Reading ListSource URL: www.lhva.orgLanguage: English - Date: 2014-01-30 10:43:55
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5 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2014-03-13 13:48:52
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6 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2011-07-12 10:37:20
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7 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-05-16 14:40:26
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8 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-05-16 14:40:26
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9 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-02-27 14:06:03
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