Water Quality in SWANZEY, NH (03446)
EPA violation data for public water systems serving ZIP code 03446.
49
Total Violations
8
Health-Based
41
Monitoring / Reporting
49
Resolved
What does this mean?
49 of 49 violations have been resolved. 8 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 41 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 (49 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| E. COLI | Monitoring | 0 | N/A | Dec 31, 2024 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Nov 3, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Nov 3, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Nov 3, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Nov 3, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Nov 3, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Nov 3, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Nov 3, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Nov 3, 2024 | Resolved | N/A |
Violation Timeline
2024(20)
E. COLI
19
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
4A
Revised Total Coliform Rule
4A
Revised Total Coliform Rule
4A
Revised Total Coliform Rule
4A
Revised Total Coliform Rule
2B
Revised Total Coliform Rule
2B
Revised Total Coliform Rule
2B
Revised Total Coliform Rule
2B
Lead and Copper Rule
66
Lead and Copper Rule
66
Revised Total Coliform Rule
3A
E. COLI
19
E. COLI
34
E. COLI
34
E. COLI
34
E. COLI
34
Revised Total Coliform Rule
3A
E. COLI
19
2023(13)
Nitrate
03
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
4B
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
E. COLI
34
E. COLI
34
E. COLI
34
E. COLI
34
How Does This Compare?
SWANZEY (03446) has 49 recorded violations, including 8 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
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.