Water Quality in Yuma, AZ (85366)
EPA violation data for public water systems serving ZIP code 85366.
98
Total Violations
16
Health-Based
82
Monitoring / Reporting
81
Resolved
What does this mean?
81 of 98 violations have been resolved. 16 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 82 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 (98 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| E. COLI | Monitoring | 0 | N/A | Aug 31, 2025 | Active | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| Groundwater Rule | Health-Based | N/A | N/A | Aug 1, 2025 | Active | N/A |
| Nitrite | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| E. COLI | Monitoring | 0 | N/A | May 31, 2025 | Active | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | May 31, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | May 31, 2025 | Resolved | N/A |
| Chlorine | Monitoring | N/A | N/A | May 31, 2025 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | May 31, 2025 | Resolved | Eye and nose irritation; stomach discomfort |
| Groundwater Rule | Health-Based | N/A | N/A | May 30, 2025 | Active | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Apr 30, 2025 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2025(25)
E. COLI
34
Groundwater Rule
45
Nitrite
03
E. COLI
34
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
4B
Chlorine
27
Chlorine
27
Groundwater Rule
45
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
4B
E. COLI
34
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
4B
E. COLI
34
E. COLI
34
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Public Notice
75
2024(25)
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
4B
Lead and Copper Rule
66
Lead and Copper Rule
66
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
TTHM
27
Total Haloacetic Acids (HAA5)
27
Public Notice
75
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
LEAD AND COPPER RULE REVISIONS
4H
LEAD AND COPPER RULE REVISIONS
2E
LEAD AND COPPER RULE REVISIONS
2E
LEAD AND COPPER RULE REVISIONS
4G
LEAD AND COPPER RULE REVISIONS
4G
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
2A
Revised Total Coliform Rule
2C
Chlorine
27
Chlorine
27
How Does This Compare?
Yuma (85366) has 98 recorded violations, including 16 health-based. 17 remain unresolved. 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.