Surface Water Reports

Following are links to download ADEQ surface water reports: 

Intermittent Streams Assessment

Clean Water Act Assessments

  • 2016 Status of  Water Quality in Arizona 305(b) Assessment Report | View/Download >
  • 2012/2014 Water Quality in Arizona 305(b) Assessment Report | View/Download >

Implementation Procedures

  • Implementation Procedures for the Narrative Bottom Deposits Standard, Final (April 2015) | View/Download >
  • Implementation Procedures for the Narrative Biocriteria Standard, Final (April 2015) | View/Download >

Water Quality Studies

  • A Review of the Bottom Deposits Standard: Improving Evaluation of Perennial Streams (July 2018) | View/Download >
  • The Water Quality of the Lower San Pedro River (FY 2012 – 2016) | View/Download >
  • A Statewide Assessment of Arizona’s Streams (July 2007 – June 2010) | View/Download >
  • Regional Ecological Monitoring and Assessment Program: Ecological Assessment of Streams in the Little Colorado River Watershed, Arizona (2007) | View/Download >
  • Regional Ecological Monitoring and Assessment Program: A Comparison of Macroinvertebrate and Habitat Methods of Data Collection in the Little Colorado River Watershed, Arizona (2007) | View/Download >
  • A Water Quality Investigation of 17 Grand Canyon Tributaries (July 2004 – May 2005) | View/Download >
  • Ambient Surface Water Quality of Rivers and Streams in the Upper Gila Basin Water Year 2000 | View/Download >

Water Quality Reports

  • Arizona’s Comprehensive Water Quality Monitoring Strategy For Fiscal Years 2021 to 2025 (2020) | View/Download >
  • The Arizona Water Quality Index: Trends and Exploratory Data Analysis (2020) | View/Download >
  • Index Stability Score: An adjunct tool for Water Quality Index Reporting (2020) | View/Download >
  • The Arizona Water Quality Index: A Communication Tool for Water Quality Summaries (2018) | View/Download >
  • An Exploration of Nutrient and Community Variables in Effluent Dependent Streams in Arizona (2009) | View/Download >
  • Comparative Sediment Rating Curves for Two Gage Stations In the Upper Salt River Basin of Arizona (2005) | View/Download >
  • Stream Channel Morphology and Benthic Macroinvertebrate Community Associations in the San Pedro River and Verde River Basins of Arizona and Appendices (1999 – 2002) | View/Download >

Border and Regional Assistance