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40 C.F.R. Part 131 – Water Quality Standards | Midpage
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Code of Federal Regulations
Title 40
Chapter I
Subchapter D
Part 131
40 C.F.R. Part 131
Water Quality Standards
A
General Provisions
B
Establishment of Water Quality Standards
C
Procedures for Review and Revision of Water Quality Standards
D
Federally Promulgated Water Quality Standards