Water Quality in PHOENIX, AZ (85004)
EPA violation data for public water systems serving ZIP code 85004.
80
Total Violations
4
Health-Based
76
Monitoring / Reporting
80
Resolved
What does this mean?
80 of 80 violations have been resolved. 4 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 76 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 (80 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Jul 31, 2025 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Feb 28, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Feb 28, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Feb 28, 2025 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2025(16)
Surface Water Treatment Rule
36
TTHM
27
Total Haloacetic Acids (HAA5)
27
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Public Notice
75
Public Notice
75
Public Notice
75
2024(43)
TTHM
27
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Total Haloacetic Acids (HAA5)
27
Total Haloacetic Acids (HAA5)
27
TTHM
27
LEAD AND COPPER RULE REVISIONS
4G
LEAD AND COPPER RULE REVISIONS
2E
LEAD AND COPPER RULE REVISIONS
2E
LEAD AND COPPER RULE REVISIONS
2E
LEAD AND COPPER RULE REVISIONS
2E
LEAD AND COPPER RULE REVISIONS
4G
LEAD AND COPPER RULE REVISIONS
4G
LEAD AND COPPER RULE REVISIONS
4G
Lead and Copper Rule
66
TTHM
27
TTHM
27
Total Haloacetic Acids (HAA5)
27
Total Haloacetic Acids (HAA5)
27
Total Haloacetic Acids (HAA5)
27
Lead and Copper Rule
66
TTHM
27
Lead and Copper Rule
66
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
TTHM
27
Total Haloacetic Acids (HAA5)
27
TTHM
27
Total Haloacetic Acids (HAA5)
27
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
How Does This Compare?
PHOENIX (85004) has 80 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
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.