Army Corps backs Quartzsite water upgrades, skips full environmental review

Quartzsite’s water system moved another step forward this week, with the U.S. Army Corps of Engineers saying it will assist the town with upgrades while skipping a full Environmental Assessment.

The project falls under Section 595 of the Water Resources Development Act of 1999 and focuses on potable water distribution in Quartzsite, a small La Paz County town that serves 2,761 people through 857 residential service connections. The proposed work includes a Tyson Street water line extension and altitude valves at the Quail Trail Water Storage Facility.

That shift matters because the Corps had previously said in a June 4, 2025 notice that it intended to prepare an Environmental Assessment. In the April 16 notice, the agency said it now expects to use a Categorical Exclusion under the National Environmental Policy Act and Defense Department procedures instead. For Quartzsite, that means the project has cleared a major procedural hurdle and can keep moving through federal approval with less delay than a full review would usually take.

The underlying goal has not changed: the Corps has said the Quartzsite New Well No. 4 and System Improvements project is meant to significantly improve safety, reliability, drinking-water supply and system resilience. A Sept. 15, 2023 fact sheet put the estimated total project cost at $1,030,000 and split the financing at 75 percent federal and 25 percent non-federal. The Corps also noted congressional interest from Sen. Mark Kelly, Sen. Kyrsten Sinema, Rep. Greg Stanton and Rep. Paul Gosar.

A March 14, 2024 Project Partnership Agreement confirmed the town’s potable water improvements were eligible for Section 595 assistance. The April 16 notice did not give a construction start date, but it does move the project closer to the point where residents could see actual work in the field and, eventually, a more stable system at the tap.

That stability matters in Quartzsite, where the 2020 Census counted 2,413 residents but winter traffic and seasonal demand can swell the town far beyond its year-round population. Arizona Department of Environmental Quality records list source wells including KOFA WL-55-204271 and KOFA 4 WL-55-235647, underscoring how much the town depends on groundwater infrastructure behind the scenes.

Utility planning is already active at the local level. Quartzsite’s town utilities page lists the utility office at 465 N. Plymouth Ave. and Public Works Director Emmett Brinkerhoff, and it shows Water Rate Adjustment Resolution No. 22-11 and Wastewater Rate Adjustment Resolution No. 22-12. The town also posted utility-service and water and wastewater adjustment notices on July 7, 2025, while the broader infrastructure picture includes ADOT’s West Quartzsite Traffic Interchange and Frontage Road project, which held a public meeting March 4 at the Quartzsite Improvement Association.