2018 California Integrated Report (Clean Water Act Section 303(d) List and 305(b) Report)
For the 2018 Integrated Report, the North Coast, Lahontan, and Colorado River Basin Regional Water Boards are “on cycle.” In addition, the San Francisco Bay, Los Angeles, Central Valley, and San Diego Regional Water Boards conducted “off-cycle” assessments for one or more waterbodies within their respective regions. The 2018 Integrated Report was approved by U.S. EPA on June 9, 2021.
Now Available!
- 2018 California Integrated Report Waterbody Fact Sheets (Excel version)
- An Excel file with waterbody assessments found in the Statewide Waterbody Fact Sheets, Appendix C of the Final Staff Report
- 2018 Integrated Report map
Final 2018 California Integrated Report - Approved by U.S. EPA
- Appendix A: 2018 303(d) List of Impaired Waters
- Appendix B: North Coast Regional Water Board Waterbody Fact Sheets
- Appendix C: Statewide Waterbody Fact Sheets
- Appendix D: Category Reports
- Appendix D1: Category 1 Waterbody Segments
- Appendix D2: Category 2 Waterbody Segments
- Appendix D3: Category 3 Waterbody Segments
- Appendix D4a: Category 4a Waterbody Segments
- Appendix D4b: Category 4b Waterbody Segments
- Appendix D4c: Category 4c Waterbody Segments
- Appendix D5: Category 5 Waterbody Segments
- Appendix E: List of Approved TMDLs
- Appendix F: Flowchart for Fish Tissue Mercury Objective Assessments
- Appendix G: Miscellaneous Mapping Changes Report
- Appendix H: Reference Report
- Appendix I: 2014/2016 303(d) List of Impaired Waters
- Notice of Data Solicitation
