40 CFR Part 131
PART 131—WATER QUALITY STANDARDS
- PART 131—WATER QUALITY STANDARDS
- Chapter I—Environmental Protection Agency › Subchapter D—Water Programs
- Subpart A—General Provisions
- § 131.1 Scope.
- § 131.2 Purpose.
- § 131.3 Definitions.
- § 131.4 State authority.
- § 131.5 EPA authority.
- § 131.6 Minimum requirements for water quality standards submission.
- § 131.7 Dispute resolution mechanism.
- § 131.8 Requirements for Indian Tribes to administer a water quality standards program.
- Subpart B—Establishment of Water Quality Standards
- § 131.9 Protection of Tribal reserved rights.
- § 131.10 Designation of uses.
- § 131.11 Criteria.
- § 131.12 Antidegradation policy and implementation methods.
- § 131.13 General policies.
- § 131.14 Water quality standards variances.
- § 131.15 Authorizing the use of schedules of compliance for water quality-based effluent limits in NPDES permits.
- Subpart C—Procedures for Review and Revision of Water Quality Standards
- § 131.20 State review and revision of water quality standards.
- § 131.21 EPA review and approval of water quality standards.
- § 131.22 EPA promulgation of water quality standards.
- Subpart D—Federally Promulgated Water Quality Standards
- § 131.31 Arizona.
- § 131.32 [Reserved]
- § 131.33 Idaho.
- § 131.34 Kansas.
- § 131.35 Colville Confederated Tribes Indian Reservation.
- § 131.36 Toxics criteria for those states not complying with Clean Water Act section 303(c)(2)(B).
- § 131.37 California.
- § 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California.
- § 131.40 Puerto Rico
- § 131.41 Bacteriological criteria for those states not complying with Clean Water Act section 303(i)(1)(A).
- § 131.42 Antidegradation Implementation Methods for the Commonwealth of Puerto Rico.
- § 131.43 Maine.
- § 131.44 Florida.
- § 131.45 Revision of certain Federal water quality criteria applicable to Washington.
- § 131.46 Aquatic life criterion for cadmium in Oregon.
- § 131.47 Aquatic life criteria for aluminum in Oregon.
- § 131.48 Water quality standards to protect aquatic life in the Delaware River.
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