Monitoring, Assessment and TMDLs: Hawaii

• Hawaii's Integrated Reports and EPA's Response Letters
• TMDLs in Hawaii

Hawaii Department of Health is responsible for conducting monitoring, assessment, reporting under CWA Sections 303(d) and 305(b) and TMDL development for the state of Hawaii.

The Environmental Planning Office is principally responsible for monitoring and preparation of the Section 305(b) report. More information on these programs can be found at the Hawaii Department of Health, Clean Water Branch's Integrated Report and Total Maximum Daily Loads.

Hawaii's Integrated Reports and EPA's Response Letters

• 2020 State of Hawaii Water Quality Monitoring and Assessment Report (pdf)
  • Partial Approval Letter and Enclosure: Hawai‘i 2020 List of Impaired Waters under Clean Water Act (CWA) Section 303(d)
• 2018 State of Hawaii Water Quality Monitoring and Assessment Report (pdf)
  • Summary of Public Comments Received on EPA’s Action to Add Waters to Hawaii’s 2018 List of Impaired Waters
  • Partial Approval Letter and Enclosure: Hawaii’s 2018 Section 303(d) List Supplemental Submission dated May 27, 2020
  • Approval Letter and Enclosure: Hawaii 2018 Section 303(d) List of Impaired Waters
• 2016 State of Hawaii Water Quality Monitoring and Assessment Report
  • Approval Letter and Enclosure: Hawaii 2016 Section 303(d) List of Impaired Waters
• 2014 State of Hawaii Water Quality Monitoring and Assessment Report
  • Approval Letter and Enclosure: Hawai'i 2014 Section 303(d) List of Impaired Waters

TMDLs in Hawaii

Information on the status of TMDLs being developed or previously developed by Department of Health.