Subpart D—Federally Promulgated Water Quality Standards

1. CFR
2. ›
3. Title 40
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5. Chapter I
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7. Part 131
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9. Subpart D

Sections

Section numbering in the official eCFR can be non-consecutive. Omitted section numbers are not treated here as reserved unless the source explicitly labels them that way.

• 131.31
  § 131.31 Arizona.
• 131.32
  § 131.32 [Reserved]
• 131.33
  § 131.33 Idaho.
• 131.34
  § 131.34 Kansas.
• 131.35
  § 131.35 Colville Confederated Tribes Indian Reservation.
• 131.36
  § 131.36 Toxics criteria for those states not complying with Clean Water Act section 303(c)(2)(B).
• 131.37
  § 131.37 California.
• 131.38
  § 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California.
• 131.40
  § 131.40 Puerto Rico
• 131.41
  § 131.41 Bacteriological criteria for those states not complying with Clean Water Act section 303(i)(1)(A).
• 131.42
  § 131.42 Antidegradation Implementation Methods for the Commonwealth of Puerto Rico.
• 131.43
  § 131.43 Maine.
• 131.44
  § 131.44 Florida.
• 131.45
  § 131.45 Revision of certain Federal water quality criteria applicable to Washington.
• 131.46
  § 131.46 Aquatic life criterion for cadmium in Oregon.
• 131.47
  § 131.47 Aquatic life criteria for aluminum in Oregon.
• 131.48
  § 131.48 Water quality standards to protect aquatic life in the Delaware River.