Water Quality in SAN LUIS, AZ (85349)
EPA violation data for public water systems serving ZIP code 85349.
20
Total Violations
8
Health-Based
12
Monitoring / Reporting
20
Resolved
What does this mean?
20 of 20 violations have been resolved. 8 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 12 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 (20 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2024 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2024 | Resolved | N/A |
| Groundwater Rule | Health-Based | N/A | N/A | Jun 5, 2024 | Resolved | N/A |
| Groundwater Rule | Health-Based | N/A | N/A | Jun 5, 2024 | Resolved | N/A |
| Groundwater Rule | Health-Based | N/A | N/A | Jun 5, 2024 | Resolved | N/A |
| Groundwater Rule | Health-Based | N/A | N/A | Jun 5, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jan 31, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jan 31, 2024 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 27, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 27, 2021 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2024(8)
Lead and Copper Rule
52
Lead and Copper Rule
52
Groundwater Rule
45
Groundwater Rule
45
Groundwater Rule
45
Groundwater Rule
45
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
4B
2021(12)
Lead and Copper Rule
66
Lead and Copper Rule
66
TTHM
35
TTHM
35
E. COLI
34
E. COLI
34
Groundwater Rule
45
Groundwater Rule
45
Groundwater Rule
45
Groundwater Rule
45
Revised Total Coliform Rule
5A
Revised Total Coliform Rule
5A
How Does This Compare?
SAN LUIS (85349) has 20 recorded violations, including 8 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
Activated Carbon Filter
Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.
Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor
Look for:NSF/ANSI 42 & 53 certified
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) certified
Always look for filters certified by NSF International for the specific contaminants you want to remove.