An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Tribal Programs in the Pacific Southwest

Region 9 Clean Water Act 106 Reporting Requirements


Final Guidance on Awards of Grants to Indian Tribes under Section 106 of the Clean Water Act (Cover Image)

The Guidance on Awards of Grants to Indian Tribes under Section 106 of the Clean Water Act (the Guidance) is intended to help tribal water quality program managers, staff, and other tribal environmental decision makers design and implement effective and successful water quality programs. It also establishes procedures and guidelines for EPA regions to consider when awarding and administering grants to federally recognized Tribes.

Reporting requirements and data management expectations for all Tribal programs are a key component of the Guidance. Tribes are developing tribal assessment reports that contain information about water quality on tribal land and demonstrate national results for the Section 106 Tribal program. A tribal assessment report consists of the following. For each step, regional supplemental information is provided farther down this page:

  1. A description of the monitoring strategy;
    Regional Supplement
  2. A water quality assessment (annual requirement); and
    Regional Supplement
  3. Surface water quality monitoring data submitted electronically in a STORET/WQX-compatible format (annual requirement).
    Regional Supplement

The Guidance and its (non-regional) supplements are available on EPA's national Clean Water Act tribal Section 106 program website, and the STORET-compatible Data Template (also referred to as the WQX Web Template) is available along with other resources at the STOrage and RETrieval and Water Quality eXchange and Water Quality Exchange Web Template Files websites.

The documents below have been developed to assist Tribes in completing reporting requirements. These regional supplements support and further clarify the reporting requirements outlined in the Tribal 106 Guidance, and serve as additional tools for EPA and tribal staff to use as they implement the Guidance.

If you have questions about these materials, please contact your Section 106 Project Officer.

Regional Supplements

Reporting Requirements

CWA §106 Tribal 106 Funding Fact Sheet (Region 9)

1. Monitoring Strategy (Page A-1 of Guidance)

Top of Page

2. Water Quality Assessment Report (Page A-4 of Guidance)

3. STORET-Compatible Electronic Data (Page A-7 of Guidance)

Understanding Data Management

Using the STORET/WQX Data Template (Tutorials and User Guide)

WQX Web Resources

Key Water Quality Indicators

Top of Page