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United States Environmental Protection Agency
Laws & Regulations
Laws & Regulations
EPA National Library Network
Search Results for the EPA National Library Catalog
Items Found: 11
Showing: Items 1 - 11
Your Search: (SUBJECT=Secchi disc transparency)
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CEMM/GEMMD Library/Gulf Breeze,FL
Env Science Center Library/Ft Meade,MD
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Volunteer Lake Monitoring Program, 1987. Volume 5: East-Central Illinois Region.
Volunteer Lake Monitoring Program, 1990. Volume 1. Statewide Summary Report.
Volunteer Lake Monitoring Program, 1990. Volume 2. Northwestern Illinois Region.
Volunteer Lake Monitoring Program, 1990. Volume 3. Northeastern Illinois Region.
Volunteer Lake Monitoring Program, 1990. Volume 4. West-Central Illinois Region.
Volunteer Lake Monitoring Program, 1990. Volume 5. East-Central Illinois Region.
Volunteer Lake Monitoring Program, 1990. Volume 6. Southwestern Illinois Region.
Volunteer Lake Monitoring Program, 1990. Volume 7. Southern Illinois Region.
Volunteer Lake Monitoring Program, 1991. Volume 1: Statewide Summary Report.
Volunteer Lake Monitoring Program, 1991. Volume 6. Southwestern Illinois Region.
Volunteer Lake Monitoring Program, 1992. Volume 2: Northwestern Illinois Region.
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