Water Quality in CHRISTIANA, PA (17509)
EPA violation data for public water systems serving ZIP code 17509.
61
Total Violations
14
Health-Based
47
Monitoring / Reporting
48
Resolved
What does this mean?
48 of 61 violations have been resolved. 14 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 47 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 (61 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Public Notice | Monitoring | N/A | N/A | Sep 19, 2025 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Sep 19, 2025 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Sep 19, 2025 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Sep 19, 2025 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Aug 29, 2025 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Aug 29, 2025 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Aug 29, 2025 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Aug 29, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Aug 9, 2025 | Active | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Aug 9, 2025 | Active | N/A |
Violation Timeline
2025(20)
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Revised Total Coliform Rule
2A
Revised Total Coliform Rule
2A
Revised Total Coliform Rule
2A
Revised Total Coliform Rule
4F
Revised Total Coliform Rule
4F
Revised Total Coliform Rule
4F
Revised Total Coliform Rule
2B
Revised Total Coliform Rule
2B
Revised Total Coliform Rule
2B
Revised Total Coliform Rule
4F
Revised Total Coliform Rule
4F
Revised Total Coliform Rule
4F
2024(28)
Groundwater Rule
31
Groundwater Rule
31
Groundwater Rule
31
Groundwater Rule
31
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Groundwater Rule
41
Groundwater Rule
41
Groundwater Rule
41
Groundwater Rule
41
Groundwater Rule
31
Groundwater Rule
31
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Groundwater Rule
41
Groundwater Rule
41
Groundwater Rule
41
Groundwater Rule
41
Groundwater Rule
31
Groundwater Rule
31
How Does This Compare?
CHRISTIANA (17509) has 61 recorded violations, including 14 health-based. 13 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.
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.