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2022 Water Quality in Arizona 305(b) Assessment Report

Surface Water Improvement

2022 Water Quality in Arizona 305(b) Assessment Report

Revised on: Sept. 6, 2023 -  10:00 a.m.

2022 Clean Water Act Assessment (Chapters 1 – 4) | View/Download > | View Data >

Appendices – Assessment Decisions, Impaired Waters List, TMDL Priorities | Download (Excel) >

Assessed Water Map | View eMap >

June 2022 EPA Approval Letter | View/Download >

Sept 2022 EPA Approval Letter | View/Download >

Response to Comments | View/Download >