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Oregon’s Impaired Waters
0 30 60 90Miles
Note: This map shows all waters impaired by one or more pollutants in Oregon. Waters are depicted as needing a TMDL until TMDLs have been completed addressing all impairing pollutants.
2004/2006 Water Quality Limited WatersImpaired by one or more pollutants - needs TMDL (303(d) List) Impaired - does not need TMDL (TMDL approved or impaired by non-pollutant)Total - 1,117 streams, lakes, reservoirs Total - 1,231 streams, lakes, reservoirs
14,905 miles
31 lakes and reservoirs; 46,753 acres
16,736 miles
21 lakes and reservoirs; 96,799 acres
WQ
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tream
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ust 4
th, 2
009
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