For the past 8 years, ETD has been collaborating with Brown & Caldwell, of Salt Lake City, Utah, on regional water planning projects and water systems improvement projects across the Navajo Nation. The regional plans were paid for by the Navajo Nation Water Management Branch (WMB). Brown & Caldwell effectively developed the plans in coordination with Navajo Tribal Utility Authority (NTUA), Indian Health Service (IHS), and the Navajo Nation WMB. ETD’s role was to develop information that would lead to water demands projects for 40 years into the future. We inventoried and mapped current and future land uses, estimated population projections, and described the socioeconomic conditions for over 20 Navajo Chapters (approximately a fifth of the entire Navajo Nation).
In addition to these regional water plans, ETD completed environmental assessments for the following projects that were designed by Brown & Caldwell:
- Environmental Assessment: Ganado and Dilkon/Lower Greasewood Water Systems Improvement Project
- Environmental Assessment:Oljato Water Supply Improvement Project
- Environmental Assessment: Jeddito Goldwater Waterline Loop Project
- Environmental Assessment: Aneth & Montezuma Creek Arsenic Water Treatment Buildings
In 2015, the Navajo Nation Council allocated $250 million for water infrastructure projects across the Navajo Nation. Some of these projects are based on the planning efforts by Brown & Caldwell and ETD.