Is San Tan Valley, Arizona tap water safe?
5 water systems report serving San Tan Valley. Your water depends on which one serves your address. Check your bill if unsure. This list is matched from the ZIP codes in this place, so it may include nearby systems.
A
Town of Queen Creek
Serves 95,502 people · Groundwater · Full report →
No health-based violations in the last 5 years; 1 monitoring/reporting violation; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
B
Epcor - San Tan
Serves 87,435 people · Groundwater · Full report →
No health-based violations in the last 5 years; 32 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2024).
C
Epcor - San Tan Anthem
Serves 10,362 people · Groundwater · Full report →
No health-based violations in the last 5 years; 5 monitoring/reporting violations; PFOA/PFOS average above the 4 ppt federal limit: PFOA; Lead 90th percentile below the action level (2023).
B
Sun Valley Farms Unit Vi
Serves 600 people · Groundwater · Full report →
No health-based violations in the last 5 years; 24 monitoring/reporting violations; 3 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
C
Skyline Resort RV Park
Serves 375 people · Groundwater · Full report →
1 health-based violation in the last 5 years; 17 monitoring/reporting violations; 1 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).