2005 CFR Title 40, Volume 21

Title 40--Protection of Environment CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 131--WATER QUALITY STANDARDS
	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.
	131.10	Designation of uses.
	131.11	Criteria.
	131.12	Antidegradation policy.
	131.13	General policies.
	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.
	131.31	Arizona.
	131.32	Pennsylvania.
	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).