Well & Groundwater Services in Yuma, AZ

Well & Groundwater Services in Yuma, Arizona

Yuma is Arizona’s agricultural heartland. Situated where the Colorado River once formed a natural crossing into California and Mexico, Yuma County grows roughly 90% of North America’s winter lettuce, broccoli, and spinach. While Yuma city itself is served by municipal water from the Colorado River, the vast agricultural operations surrounding the city and the residential areas outside city limits depend on a combination of canal deliveries and groundwater wells.

Three licensed well drilling and pump contractors are based in Yuma, serving both rural residential clients and the broader agricultural and commercial sector.

Yuma’s Water Supply Picture

Yuma’s relationship with water is dominated by the Colorado River and the Bureau of Reclamation’s Yuma Project — a network of canals, drains, and water delivery infrastructure serving the agricultural valleys. The Yuma Area Office of the Bureau of Reclamation manages water deliveries from Laguna Dam, Imperial Dam, and Morelos Dam.

Groundwater wells in the Yuma area tap the lower Colorado River alluvial aquifer, a relatively shallow (150–400 feet for residential use) but highly productive sedimentary sequence. The aquifer is hydraulically connected to the Colorado River, which means it both receives recharge from the river and can be pumped to supplement or replace surface water during shortage periods.

Water Quality in Yuma City Area

Yuma’s groundwater quality is shaped by the Colorado River’s salt load and decades of intensive irrigation:

TDS (Total Dissolved Solids): Often 800–2,000 mg/L in wells influenced by agricultural return flows. The Bureau of Reclamation has invested heavily in desalination infrastructure (the Yuma Desalting Plant) to manage this problem at the regional scale.
Hardness: Extreme by most standards — 500–900+ mg/L as CaCO₃. Water softeners are essential.
Nitrates: Widespread in shallow groundwater due to decades of fertilizer application across the agricultural valleys.
Arsenic: Present at moderate levels; all new wells should be tested.

For Yuma area well owners, reverse osmosis for drinking water is not optional — it is the practical necessity given TDS levels. Budget $400–$800 for a point-of-use RO system in addition to any softener.