31 | Add to Reading ListSource URL: vt.water.usgs.govLanguage: English - Date: 2010-07-09 09:48:26
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32 | Add to Reading ListSource URL: water.usgs.govLanguage: English - Date: 2009-02-27 16:25:35
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33 | Add to Reading ListSource URL: oh.water.usgs.govLanguage: English - Date: 2003-07-01 09:24:40
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34 | Add to Reading ListSource URL: water.usgs.govLanguage: English - Date: 2001-07-09 17:44:22
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35 | Add to Reading ListSource URL: water.usgs.govLanguage: English - Date: 2008-12-09 13:30:00
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36 | Add to Reading ListSource URL: acwi.govLanguage: English - Date: 2010-05-21 14:22:34
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37 | Add to Reading ListSource URL: water.usgs.govLanguage: English - Date: 2004-07-07 10:44:48
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38 | Add to Reading ListSource URL: vt.water.usgs.govLanguage: English - Date: 2010-07-09 09:48:26
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39 | Add to Reading ListSource URL: nh.water.usgs.govLanguage: English - Date: 2010-07-09 09:48:26
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40 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-11-29 16:15:20
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