Water Quality in BALTIMORE, MD (21231)
EPA violation data for public water systems serving ZIP code 21231.
11
Total Violations
0
Health-Based
11
Monitoring / Reporting
11
Resolved
What does this mean?
11 of 11 violations have been resolved. None of these are health-based violations — no contaminant levels exceeded federal safety limits. The remaining 11 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 (11 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Revised Total Coliform Rule | Monitoring | N/A | N/A | May 31, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | May 31, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | May 31, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jul 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jul 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jul 31, 2021 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
Violation Timeline
2022(3)
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
2021(8)
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Consumer Confidence Rule
71
Consumer Confidence Rule
71
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
How Does This Compare?
BALTIMORE (21231) has 11 recorded violations, none of which are 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.
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.