81 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2010-07-29 00:51:22
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82 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2011-11-09 19:32:29
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83 | Add to Reading ListSource URL: www.arizonahistoricalsociety.orgLanguage: English - Date: 2013-03-12 10:40:08
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84 | Add to Reading ListSource URL: www2.epa.govLanguage: Spanish - Date: 2014-03-13 20:46:51
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85 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-05-07 16:35:55
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86 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-11-08 12:57:56
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87 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-03-01 19:51:15
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88 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-04-09 11:10:41
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89 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-03-01 19:51:14
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90 | Add to Reading ListSource URL: www.azdjc.govLanguage: English - Date: 2014-09-19 19:20:11
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