211 | Add to Reading ListSource URL: www.blm.govLanguage: English - Date: 2014-08-23 04:33:57
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212 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2006-11-29 09:10:05
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213 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2005-10-31 15:09:16
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214 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2013-07-16 12:18:21
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215 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2013-04-30 16:54:03
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216 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2013-04-30 16:54:00
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217 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2005-11-01 09:20:03
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218 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1999-06-08 10:51:28
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219 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-11-17 07:28:40
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220 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-02-13 13:24:48
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