SURPRISE, AZ · Maricopa County
DESERT OASIS Water System
Consumer Confidence Report status
DESERT OASIS must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for DESERT OASIS.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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)
DESERT OASIS is one of 67 community water systems in Arizona in the 10,001 to 100,000 people size category, serving 23,963 people from groundwater.
As of August 1, 2026, EPA's published records contain no violations for this system.
Violation history
No violations on record for this system.
Enforcement actions
- January 23, 2006Federal Variance/Exemption issuedgeneral compliance action — not tied to a specific violation on record
Common questions
Is DESERT OASIS required to publish a Consumer Confidence Report?
- Yes. DESERT OASIS is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is DESERT OASIS’s next Consumer Confidence Report due?
- DESERT OASIS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does DESERT OASIS have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for DESERT OASIS.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
PEZZELLE, STEPHANIE R
623-222-7030
SURPRISE, AZ 85374