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Division Wide Calendar

The NNEPA Divison Wide Calendar is a place to find any news on what is happening from a single view. You can filter by department and even program with the upcoming events!

Complaint Form

New and improved Complaint Form for Online usage.


This new form will allow you to fill out a form electronically.

Latest News

This sections is for any news happening around the NNEPA division.

Articles can be found here, if you need to search other places, please try the search on the top right!

Welcome to the Public Water Systems Supervision Program


The Public Water Systems Supervision Program (PWSSP) is under the Surface and Ground Water Protection Department (SGWPD) of the Navajo Nation Environmental Protection Agency (NNEPA).

The Navajo Nation EPA is an independent entity of the Executive Branch of the Navajo Nation.  The Surface and Ground Water Protection Department is responsible for protecting the waters of the Navajo Nation.

The Public Water Systems Supervision Program is now a Primacy Program, based on the US EPA-Region 9 approval of the Primary Enforcement Authority over most of the public water systems on the Navajo Nation.

Here is the link to the PWSSP-specific website:

Federal Register Link below:

Public Water System Supervision Program Revisions for the Navajo Nation