81 | Add to Reading ListSource URL: water.usgs.govLanguage: English - Date: 2013-02-13 19:22:29
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82 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2005-01-19 13:16:31
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83 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-11-15 12:37:57
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84 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-11-15 12:39:47
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85 | Add to Reading ListSource URL: www.physique.usherbrooke.caLanguage: English - Date: 2013-09-14 21:16:11
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86 | Add to Reading ListSource URL: www.physique.usherbrooke.caLanguage: English - Date: 2013-09-12 20:39:20
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87 | Add to Reading ListSource URL: www.physique.usherbrooke.caLanguage: English - Date: 2013-09-12 20:39:00
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88 | Add to Reading ListSource URL: www.physique.usherbrooke.caLanguage: English - Date: 2013-09-12 20:39:29
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89 | Add to Reading ListSource URL: www.physique.usherbrooke.caLanguage: English - Date: 2013-09-12 20:39:36
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90 | Add to Reading ListSource URL: www.physique.usherbrooke.caLanguage: English - Date: 2013-09-12 20:39:05
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