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Code of Federal Regulations
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Title 40
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Chapter I — Environmental Protection Agency
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Subchapter D — Water Programs
/
Part 131 — Water Quality Standards
‹
Pt. 130
Water Quality Planning and Management
Pt. 132
Water Quality Guidance for the Great Lakes System
›
Part 131 — Water Quality Standards
Search Part 131 full text →
Subpt. A
General Provisions
§§131.1 to 131.8
Subpt. B
Establishment of Water Quality Standards
§§131.9 to 131.15
Subpt. C
Procedures for Review and Revision of Water Quality Standards
§§131.20 to 131.22
Subpt. D
Federally Promulgated Water Quality Standards
§§131.31 to 131.48
‹
Pt. 130
Water Quality Planning and Management
Pt. 132
Water Quality Guidance for the Great Lakes System
›
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