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  1. LII
  2. State Regulations
  3. Oregon Administrative Rules
  4. Chapter 340 - DEPARTMENT OF ENVIRONMENTAL QUALITY
  5. Division 42 - TOTAL MAXIMUM DAILY LOADS (TMDLS)

Division 42 - TOTAL MAXIMUM DAILY LOADS (TMDLS)

  • State Regulations
  • Compare
  1. § 340-042-0025 - Policy, Purpose and Effect
  2. § 340-042-0030 - Definitions
  3. § 340-042-0040 - Establishing Total Maximum Daily Loads (TMDLs)
  4. § 340-042-0050 - Public Participation
  5. § 340-042-0060 - Issuing a Total Maximum Daily Load
  6. § 340-042-0070 - Requesting Reconsideration or Appealing a Total Maximum Daily Load
  7. § 340-042-0080 - Implementing a Total Maximum Daily Load
  8. § 340-042-0090 - Total Maximum Daily Loads and Water Quality Management Plans

State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.


  1. § 340-042-0025 - Policy, Purpose and Effect
  2. § 340-042-0030 - Definitions
  3. § 340-042-0040 - Establishing Total Maximum Daily Loads (TMDLs)
  4. § 340-042-0050 - Public Participation
  5. § 340-042-0060 - Issuing a Total Maximum Daily Load
  6. § 340-042-0070 - Requesting Reconsideration or Appealing a Total Maximum Daily Load
  7. § 340-042-0080 - Implementing a Total Maximum Daily Load
  8. § 340-042-0090 - Total Maximum Daily Loads and Water Quality Management Plans

State Regulations Toolbox



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