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Watermark
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#	Item
541	GL_watermark_2008 revised5_RGB_120208 Add to Reading List Source URL: epa.gov Language: English - Date: 2010-09-27 14:17:48 Earth Water management Water supply and sanitation in the United States Environmental science Drinking water Water quality Water purification Safe Drinking Water Act Maximum Contaminant Level Environment Water Water pollution
542	GL_watermark_2008 revised5_RGB_120208 Add to Reading List Source URL: epa.gov Language: English - Date: 2010-09-27 14:18:02 Pollution Biology Common snapping turtle Polychlorinated biphenyl Chelydridae Turtle Egg Great Lakes Areas of Concern Great Lakes Chelydra Living fossils Herpetology
543	SUMMER 2014 volume 31 issue 1 watermark Published by Laudholm Trust in support of Wells National Estuarine Research Reserve inside Add to Reading List Source URL: www.wellsreserve.org Language: English - Date: 2014-07-29 09:28:58 Maine Protected areas of the United States Wells National Estuarine Research Reserve Rachel Carson National Wildlife Refuge National Estuarine Research Reserve Kennebunk Maine Little River Portland – South Portland – Biddeford metropolitan area Geography of the United States Wells Maine
544	GL_watermark_2008 revised5_RGB_120208 Add to Reading List Source URL: epa.gov Language: English - Date: 2010-09-27 14:13:07 Great Lakes Endocrine disruptors Soil contamination Environmental issues Environmental soil science Great Lakes Areas of Concern Polychlorinated biphenyl Lake Erie Lake Environment Chemistry Earth
545	GL_watermark_2008 revised5_RGB_120208 Add to Reading List Source URL: epa.gov Language: English - Date: 2010-09-27 14:18:07 Earth Glaciology Great Lakes Waterway Saint Lawrence Seaway Climate history Lake Ice Climate change Great Lakes Water Physical geography Canada–United States border
546	GL_watermark_2008 revised5_RGB_120208 Add to Reading List Source URL: epa.gov Language: English - Date: 2010-09-27 14:12:57 Chemistry Persistent organic pollutants Flame retardants Organochlorides Environmental issues Polychlorinated biphenyl Polybrominated diphenyl ethers Great Lakes Air pollution Environment Endocrine disruptors Pollution
547	GL_watermark_2008 revised5_RGB_120208 Add to Reading List Source URL: epa.gov Language: English - Date: 2010-09-27 14:19:38 Gotland Habitats Landforms Midwestern United States Alvars Ontario Nature Tetraneuris herbacea Great Lakes Bobolink Systems ecology Flora of the United States Alpine flora
548	GL_watermark_2008 revised5_RGB_120208 Add to Reading List Source URL: epa.gov Language: English - Date: 2010-09-27 14:18:02 Aquatic ecology Wetland Conservation biology Frog Great Lakes Gray tree frog Biology Ecology Environment
549	GL_watermark_2008 revised5_RGB_120208 Add to Reading List Source URL: epa.gov Language: English - Date: 2010-09-27 14:19:50 North American river otter Biology European otter American mink Great Lakes Aquatic mammal Lutra Otters Lontra Zoology
550	GL_watermark_2008 revised5_RGB_120208 Add to Reading List Source URL: epa.gov Language: English - Date: 2010-09-27 14:18:09 Terminology Aquatic ecology Wetland Great Lakes Cootes Paradise Lake Wetland conservation Constructed wetland Water Environment Wetlands

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