Subpart B—Establishment of Water Quality Standards

Sections

• 131.9
  § 131.9 Protection of Tribal reserved rights.
• 131.10
  § 131.10 Designation of uses.
• 131.11
  § 131.11 Criteria.
• 131.12
  § 131.12 Antidegradation policy and implementation methods.
• 131.13
  § 131.13 General policies.
• 131.14
  § 131.14 Water quality standards variances.
• 131.15
  § 131.15 Authorizing the use of schedules of compliance for water quality-based effluent limits in NPDES permits.