Draft California 2024 Integrated Report

State Water Resources Control Board Division of Water Quality staff have developed this draft map to graphically display the waterbody assessments in the proposed 2024 Integrated Report. The Integrated Report combines the Clean Water Act section 305(b) water quality assessment and the section 303(d) list of impaired waters into one report that describes the water quality of California’s lakes, rivers, beaches, and other aquatic ecosystems. This draft map shows assessments for 305(b) categorization, including waterbody-pollutant combinations proposed for placement on the 303(d) list of impaired waters. The map also shows assessments from the 2020-2022 Integrated Report, which has been approved by U.S. EPA and is California’s current Integrated Report. This draft 2024 map will be finalized once the 2024 Integrated Report has been approved by U.S. EPA. Note, this web application and associated layers should be used for informational purposes only. Map Layers: 2024 Integrated Report Lines: Spatial representation of the assessed linear waterbodies in California, such as streams, rivers, and beaches. 2024 Integrated Report Polygons: Spatial representation of the non-linear (polygon) waterbodies in California, such as bays, lakes, and reservoirs. Download Shapefiles at the following links: Draft 2024 Integrated Report Lines Draft 2024 Integrated Report Polygons Pop Up Description: Waterbody ID: Unique identifier for each mapped waterbody in the Integrated Report. Waterbody Name: Name of the waterbody. Waterbody Type: Type of water (river, lake, estuary, etc.) Regional Board: The Regional Water Quality Control Board with jurisdiction over the waterbody. WB Size: Approximate size of the waterbody and the corresponding unit of measurement. WB Category: Integrated Report Category for the waterbody, as proposed for the 2024 Integrated Report. County: County where waterbody is located. Listing Status: Waterbodies with one or more 303(d) listings in the proposed 2024 Integrated Report are noted as "listed." Waterbodies with no 303(d) listings in the proposed 2024 Integrated Report are notes as "not listed." Proposed 2024 New Listings: Pollutants proposed for the listing on the 303(d) list for the 2024 Integrated Report. The Decision ID in parentheses corresponds to the Decision ID in the linked Waterbody Fact Sheet (below). Proposed 2024 New Delistings: Pollutants proposed for delisting from the 303(d) list for the 2024 Integrated Report. The Decision ID in parentheses corresponds to the Decision ID in the linked Waterbody Fact Sheet. 2020-2022 Pollutants Listed: Pollutants listed on the 303(d) list of the 2020-2022 Integrated Report. Waterbody Fact Sheet: Link to the complete waterbody fact sheet with assessment details, including Decisions and Lines of Evidence (LOEs).