Water Quality in SAN TAN VALLEY, AZ (85149)
EPA violation data for public water systems serving ZIP code 85149.
30
Total Violations
4
Health-Based
26
Monitoring / Reporting
30
Resolved
What does this mean?
30 of 30 violations have been resolved. 4 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 26 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.
Violations Detail (30 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Groundwater Rule | Health-Based | N/A | N/A | Oct 10, 2024 | Resolved | N/A |
| Groundwater Rule | Health-Based | N/A | N/A | Oct 10, 2024 | Resolved | N/A |
| Groundwater Rule | Health-Based | N/A | N/A | Oct 10, 2024 | Resolved | N/A |
| Groundwater Rule | Health-Based | N/A | N/A | Oct 10, 2024 | Resolved | N/A |
| Chlorine | Monitoring | N/A | N/A | Jan 31, 2024 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Jan 31, 2024 | Resolved | Eye and nose irritation; stomach discomfort |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Oct 1, 2023 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Oct 1, 2023 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2024(6)
Groundwater Rule
45
Groundwater Rule
45
Groundwater Rule
45
Groundwater Rule
45
Chlorine
27
Chlorine
27
2023(12)
Lead and Copper Rule
66
Lead and Copper Rule
66
Consumer Confidence Rule
72
Consumer Confidence Rule
72
Chlorine
27
Chlorine
27
Consumer Confidence Rule
71
Chlorine
27
Chlorine
27
Consumer Confidence Rule
71
Chlorine
27
Chlorine
27
How Does This Compare?
SAN TAN VALLEY (85149) has 30 recorded violations, including 4 health-based. All violations have been resolved, which is a positive sign for current water quality. Consider testing your tap water independently for added peace of mind.
Recommended Water Filters
Based on the contaminants detected in your area, these filter types may help improve your water quality.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 certified
Always look for filters certified by NSF International for the specific contaminants you want to remove.