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EPA's Response Letters to Hawaii's Section 303(d) Lists of Impaired Waters

Return to: Monitoring, Assessment and TMDLs: Hawaii

EPA's Response Letters to Hawaii's Section 303(d) Lists of Impaired Waters.

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  • Partial Approval Letter and Enclosure: Hawai‘i 2020 List of Impaired Waters under Clean Water Act (CWA) Section 303(d) (pdf) (444.84 KB, February 17, 2021)
    This document describes EPA's rationale for partial approval and partial disapproval of the State of Hawai‘i’s 2020 CWA section 303(d) list of water quality-limited segments (WQLSs) requiring a Total Maximum Daily Load (TMDL) pursuant to 40 C.F.R. § 130.7(a) (2020 List).
  • Summary of Public Comments Received on EPA’s Action to Add Waters to Hawai‘i’s 2018 List of Impaired Waters (pdf) (325.63 KB, December 18, 2020)
    EPA’s summary of public comments received on EPA’s action to add waters to Hawai‘i’s 2018 List of Impaired Waters due to trash, under Clean Water Act, Section 303(d).
  • Partial Approval Letter and Enclosure: Hawaii’s 2018 Section 303(d) List Supplemental Submission dated May 27, 2020 (pdf) (175.13 KB, July 9, 2020)
    EPA’s partial approval and partial disapproval of 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 (pdf) (630.44 KB, August 16, 2018)
    EPA’s approval of Hawaii’s 2018 List of Impaired Waters under Clean Water Act, Section 303(d).
  • Approval Letter and Enclosure: Hawaii 2016 Section 303(d) List of Impaired Waters (pdf) (560.12 KB, February 15, 2018)
    EPA’s approval of Hawaii’s 2016 List of Impaired Waters under Clean Water Act, Section 303(d).
  • Approval Letter and Enclosure: Hawai'i 2014 Section 303(d) List of Impaired Waters) (pdf) (181.9 KB, October 22, 2014)
    EPA Letter of approval and review of Hawaii’s 2014 CWA Section 303(d) List of Impaired Waters.

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