SURPRISE, AZ · Maricopa County
DESERT OASIS Water System
Current status
No open violations on record as of July 4, 2026.
This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Arizona’s official records. Always confirm current status with Arizona before making decisions based on this information.
System facts
- System ID (PWSID)
- AZ0407523
- System type
- Community Water System
- Population served
- 23,963
- Service connections
- 8,123
- Ownership
- local government
- Water source
- groundwater (wells)
Violation history
Monitoring, Regular
—Arsenic
July 1, 2010 – September 30, 2010
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2010 – September 30, 2010 | Monitoring, Regular | Arsenic | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- January 23, 2006Federal Variance/Exemption issuedgeneral compliance action — not tied to a specific violation on record
Contact
PEZZELLE, STEPHANIE R
623-222-7030
SURPRISE, AZ 85374