Contact EPA Pacific Southwest Water Division
Pacific Southwest, Region 9
Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations
Monitoring, Assessment and TMDLs
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Monitoring & TMDLs Home 303(d) lists EPA-established TMDLs | EPA-lead TMDLs: Completed Monitoring Arizona TMDLs | California TMDLs Hawai'i TMDLs Nevada TMDLs | Pacific Islands TMDLs TMDL Contacts |

Pacific Islands Water Quality
EPA 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. More information about the Pacific Islands Office can be found at the EPA Region 9 Pacific Islands Office website.
EPA and Pacific Island Water Quality Contacts
American Samoa
Monitoring, assessment, and TMDL development work is conducted by American Samoa EPA. More information may be obtained at American Samoa EPA's website.
On August 25, 2016, EPA approved American Samoa's 2016 Section 303(d) list.
EPA Documents
Territory Documents
- American Samoa's 2016 Section 303(d) list of waters requiring a TMDL is available at the American Samoa Environmental Protection Agency (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). More information may be obtained at the CNMI Bureau of Environmental and Coastal Quality website.
On October 8, 2014, EPA approved Commonwealth of the Northern Mariana Islands' 2014 Section 303(d) list.
EPA Documents
Territory Documents
- The Commonwealth of the Northern Mariana Islands' (CNMI) 2014 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
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.