Well pump service in Casa Grande, AZ

Casa Grande sits in the Pinal Active Management Area, between the Eloy and Maricopa-Stanfield sub-basins. Around 1900 water in much of Pinal County stood within about 50 feet of the surface. Decades of farm pumping pulled it down to 300 to 400 feet by the late 1970s, and an Arizona Department of Water Resources model has projected that water under Eloy and Casa Grande could sit more than 600 feet down by 2059 if pumping continued without replenishment. Some areas have recovered since, but a private well here is a deep well.

That depth shapes every job. Pumps hang a long way down, so pulling one takes a proper pump hoist, and the drop pipe, wire and splices carry more weight and more voltage drop than in a shallow well. When the water level in a well drops, a pump that was set comfortably below it years ago can end up drawing air or running hot.

Arsenic occurs naturally in this area’s groundwater. The public water systems serving the Casa Grande area reported arsenic between 1.3 and 9.1 parts per billion in 2025, under the 10 ppb limit that applies to public systems. A private well has no one testing it but its owner, so a lab test is the only way to know what yours contains.