Monitoring, Assessment and TMDLs: Pacific Islands

EPA Pacific Southwest (Region 9) works with the Pacific Island territories through its Pacific Islands Office, which provides technical and funding assistance to territorial environmental protection programs. The Pacific territories have completed Section 305(b) and Section 303(d) reports for several reporting cycles; each Territory is now beginning to develop TMDLs.

• American Samoa
• Commonwealth of Northern Mariana Islands (CNMI)
• Guam

American Samoa

Monitoring, assessment, and TMDL development work is conducted by American Samoa Environmental Protection Agency (EPA). More information may be obtained at the American Samoa EPA website.

EPA Documents

American Samoa's 2020 303(d) List

On October 29, 2021, EPA partially approved American Samoa's 2020 Section 303(d) list.

• EPA 2020 Partial Approval Letter to American Samoa Environmental Protection Agency (ASEPA) (pdf) (219.37 KB, October 29, 2021)
  EPA letter containing partial approval of the American Samoa 2020 List of Impaired Waters under Clean Water Act (CWA) Section 303(d) (2020 List).
• Enclosure: Review of American Samoa’s 2020 Section 303(d) List and Partial Approval Rationale (pdf) (299.82 KB, October 29, 2021)
  Describes the rationale for EPA's partial approval of American Samoa’s 2020 list of water quality limited segments requiring a Total Maximum Daily Load (TMDL) under Clean Water Act, Section 303(d).

American Samoa's 2016 303(d) List

On August 25, 2016, EPA approved American Samoa's 2016 Section 303(d) list.

• EPA 2016 Approval Letter to American Samoa Environmental Protection Agency (ASEPA) (pdf) (115.07 KB, August 25, 2016)
  EPA’s approval of American Samoa's 2016 303(d) list.
• Enclosure: Review of American Samoa’s 2016 Section 303(d) List (pdf) (482.77 KB, August 25, 2016)
  Describes the rationale for EPA's approval of American Samoa’s 2016 list of water quality limited segments requiring a Total Maximum Daily Load (TMDL) under Clean Water Act, Section 303(d).

Territory Documents

American Samoa's 2016 Section 303(d) list of waters requiring a TMDL is available at the American Samoa Environmental Protection Agency's (ASEPA) Water Program website.

Commonwealth of Northern Mariana Islands (CNMI)

Monitoring, assessment, and TMDL development work is conducted by CNMI Bureau of Environmental and Coastal Quality (CNMI BECQ).

On February 15, 2017, EPA approved Commonwealth of the Northern Mariana Islands' 2016 Section 303(d) list.

EPA Documents

• EPA Approval Letter to CNMI Bureau of Environmental and Coastal Quality (BECQ) (pdf) (78 KB, 10/08/2014)
  EPA’s approval of CNMI's 2014 303(d) list.
• Enclosure: Review of CNMI’s 2016 Section 303(d) List (pdf) (598.32 KB, 02/15/2017)
  EPA Review and Analysis of the Commonwealth of Northern Mariana Islands (CNMI) 2016 Section 303(d) List Submitted December, 2016.

Territory Documents

The Commonwealth of the Northern Mariana Islands' (CNMI) 2016 Section 303(d) list of waters requiring a TMDL is available at the CNMI Bureau of Environmental and Coastal Quality (CNMI BECQ) Water Program website.

Guam

Monitoring, assessment, and TMDL development work is conducted by Guam EPA. More information may be obtained at the Guam EPA website.

On August 10, 2016, EPA approved Guam's 2016 Section 303(d) list.

EPA Documents

• EPA Approval Letter to Guam Environmental Protection Agency (GEPA) (pdf) (157.36 KB, 08/10/2016)
  EPA’s approval of Guam's 2016 303(d) list.
• Enclosure: Review of Guam’s 2016 Section 303(d) List (pdf) (325.58 KB, 08/10/2016)
  The purpose of this document is to describe the rationale for EPA's approval of Guam’s 2016 list of water quality limited segments requiring a Total Maximum Daily Load (TMDL) under Clean Water Act, Section 303(d).

Territory Documents

Guam's 2016 Section 303(d) list of waters requiring a TMDL is available from the Guam Environmental Protection Agency (GEPA) whose contact information is available at their website.