Water Quality in OKLAHOMA CITY, OK (73141)
EPA violation data for public water systems serving ZIP code 73141.
80
Total Violations
0
Health-Based
80
Monitoring / Reporting
77
Resolved
What does this mean?
77 of 80 violations have been resolved. None of these are health-based violations — no contaminant levels exceeded federal safety limits. The remaining 80 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 |
|---|---|---|---|---|---|---|
| E. COLI | Monitoring | 0 | N/A | Mar 31, 2025 | Active | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| E. COLI | Monitoring | 0 | N/A | Mar 31, 2025 | Active | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| E. COLI | Monitoring | 0 | N/A | Mar 31, 2025 | Active | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Sep 30, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Sep 30, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Sep 30, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Sep 30, 2024 | Resolved | N/A |
Violation Timeline
2025(6)
E. COLI
34
E. COLI
34
E. COLI
34
Revised Total Coliform Rule
3B
Revised Total Coliform Rule
3B
Revised Total Coliform Rule
3B
2024(4)
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
How Does This Compare?
OKLAHOMA CITY (73141) has 80 recorded violations, none of which are health-based. 3 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
One of the few filtration methods effective at removing nitrates and nitrites. Essential for households with infants.
Targets:Nitrate, Nitrite, Dissolved Solids
Look for:NSF/ANSI 58 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.