Chapter 3745-1 - Water Quality Standards

  1. § 3745-1-01 - Purpose and applicability
  2. § 3745-1-02 - Definitions
  3. § 3745-1-03 - Analytical methods and availability of documents
  4. § 3745-1-04 - Criteria applicable to all waters
  5. § 3745-1-05 - Antidegradation
  6. § 3745-1-06 - Mixing zone demonstration and sizing requirements
  7. § 3745-1-07 - Beneficial use designations and biological criteria
  8. § 3745-1-08 - Hocking river drainage basin
  9. § 3745-1-09 - Scioto river drainage basin
  10. § 3745-1-10 - Grand river drainage basin
  11. § 3745-1-11 - Maumee river drainage basin
  12. § 3745-1-12 - Sandusky river drainage basin
  13. § 3745-1-13 - Central Ohio tributaries drainage basin
  14. § 3745-1-14 - Ashtabula river drainage basin
  15. § 3745-1-15 - Little Beaver creek drainage basin
  16. § 3745-1-16 - Southeast Ohio tributaries drainage basin
  17. § 3745-1-17 - Southwest Ohio tributaries drainage basin
  18. § 3745-1-18 - Little Miami river drainage basin
  19. § 3745-1-19 - Huron river drainage basin
  20. § 3745-1-20 - Rocky river drainage basin
  21. § 3745-1-21 - Great Miami river drainage basin
  22. § 3745-1-22 - Chagrin river drainage basin
  23. § 3745-1-23 - Portage river drainage basin
  24. § 3745-1-24 - Muskingum river drainage basin
  25. § 3745-1-25 - Mahoning river drainage basin
  26. § 3745-1-26 - Cuyahoga river drainage basin
  27. § 3745-1-27 - Black river drainage basin
  28. § 3745-1-28 - Vermilion river drainage basin
  29. § 3745-1-29 - Wabash river drainage basin
  30. § 3745-1-30 - Mill creek drainage basin
  31. § 3745-1-31 - Lake Erie standards
  32. § 3745-1-32 - Ohio river standards
  33. § 3745-1-33 - Water quality criteria for water supply use designations
  34. § 3745-1-34 - Water quality criteria for the protection of human health [fish consumption]
  35. § 3745-1-35 - Aquatic life and wildlife criteria
  36. § 3745-1-36 - [Rescinded] Methodologies for development of aquatic life criteria and values
  37. § 3745-1-37 - Water quality criteria for recreation use designations and aesthetic conditions
  38. § 3745-1-38 - Variances from water quality standards for point sources
  39. § 3745-1-39 - Site-specific modifications to criteria and values
  40. § 3745-1-40 - Methodologies for development of aquatic life criteria and values
  41. § 3745-1-41 - Methodology for deriving bioaccumulation factors
  42. § 3745-1-42 - Methodologies for development of human health criteria and values for the lake Erie drainage basin
  43. § 3745-1-43 - Methodology for the development of wildlife criteria for the lake Erie drainage basin
  44. § 3745-1-44 - Whole effluent toxicity provisions
  45. § 3745-1-50 - Wetland definitions and availability of documents
  46. § 3745-1-51 - Wetland narrative criteria
  47. § 3745-1-52 - Numeric chemical criteria for waste water discharges to wetlands
  48. § 3745-1-53 - Wetland use designation
  49. § 3745-1-54 - Wetland antidegradation

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.