Water Quality: Oro Valley, AZ
3 water systems • 47,100 people served
Some ConcernsWater Quality Summary
Oro Valley is served by 3 public water systems with a combined service population of 47,100 people, and has 356 EPA Safe Drinking Water Act violations on record. Critically, 2 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Oro Valley's violation count is 6% below the national average for Arizona. Contaminants associated with violations include Nitrate.
Contaminants Found
Causes methemoglobinemia (blue baby syndrome) in infants, reducing the blood's ability to carry oxygen.
Common source: Fertilizer runoff, septic systems, animal feedlots, natural deposits
EPA limit: 10 mg/L (as nitrogen)
Water Systems Serving Oro Valley
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| ORO VALLEY WATER UTILITY | AZ0410164 | Groundwater | 42,316 | 287 |
| ORO VALLEY WATER COUNTRYSIDE | AZ0410175 | Groundwater | 4,534 | 16 |
| LA CHOLLA AIRPARK | AZ0420597 | Groundwater | 250 | 53 |
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.