Water Quality: Casa Grande, AZ
2 water systems • 1,271 people served
Multiple Health ViolationsWater Quality Summary
Casa Grande is served by 2 public water systems with a combined service population of 1,271 people, and has 113 EPA Safe Drinking Water Act violations on record. Critically, 64 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Casa Grande's violation count is 70% below the national average for Arizona. Contaminants associated with violations include Barium, Disinfection Byproducts, Selenium.
Contaminants Found
Increases blood pressure and causes cardiovascular effects with long-term exposure.
Common source: Natural rock deposits, oil drilling operations, coal power plant waste
EPA limit: 2 mg/L
Broad category of chemicals formed during disinfection, associated with increased cancer risk and adverse reproductive effects.
Common source: Reaction of disinfectants (chlorine, ozone, chloramines) with organic matter
Hair loss, nail brittleness, and nervous system damage at elevated concentrations.
Common source: Natural geological deposits, mining discharges, oil refinery waste
EPA limit: 0.05 mg/L (50 ppb)
Water Systems Serving Casa Grande
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| COPPER MOUNTAIN RANCH CFD | AZ0411328 | Groundwater | 1,071 | 54 |
| SIERRA VISTA RV PARK | AZ0411383 | Groundwater | 200 | 59 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in Arizona
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.