Clean Power

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!

Domestic Wastewater Program



The Domestic Wastewater Program (DWWP) is under the Surface and Groundwater Protection Department of the Navajo Nation Environmental Protection Agency.  The NNEPA is an independent entity of the Executive Branch of the Navajo Nation.  DWWP is responsible for protecting human health, drinking water sources, and the environment of the Navajo Nation.  The Navajo Nation Domestic Wastewater Regulation (NNDWWR) was adopted on April 29, 2010, and became effective on the same date.

Navajo Nation Domestic Wastewater Database and summary:

There are approximately 36,700 septic tanks and drain fields and 263 Community Sewer Lagoons in Navajo Nation.  Most of the community lagoons are being operated and maintained by Navajo Tribal Utility Authority (NTUA).  Community individual homeowners are responsible for operation and maintenance of septic tanks and drain fields.



Design Review and Permit Program


Design Review Construction Permit Forms:



Application for Wastewater Construction Permit



Fee Schedule for Construction Permit



Construction Completion Report



Permit Extension Request Form



Operating Permit Forms:



Application for Operating Permit



Fee Schedule for Operating Permit



Operators Certifications:





Public Water Systems Supervision Program