Water Quality in GREENFIELD, NH (03047)
EPA violation data for public water systems serving ZIP code 03047.
30
Total Violations
21
Health-Based
9
Monitoring / Reporting
29
Resolved
What does this mean?
29 of 30 violations have been resolved. 21 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 9 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 (30 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jun 10, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jun 10, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jun 10, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jun 10, 2025 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Mar 2, 2025 | Active | N/A |
| TTHM | Health-Based | N/A | 0.072 | Dec 31, 2024 | Resolved | N/A |
| TTHM | Health-Based | N/A | 0.072 | Dec 31, 2024 | Resolved | N/A |
| TTHM | Health-Based | N/A | 0.072 | Dec 31, 2024 | Resolved | N/A |
| TTHM | Health-Based | N/A | 0.072 | Dec 31, 2024 | Resolved | N/A |
| TTHM | Health-Based | N/A | 0.113 | Sep 30, 2024 | Resolved | N/A |
Violation Timeline
2025(5)
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
4B
Public Notice
75
2024(16)
TTHM
02
TTHM
02
TTHM
02
TTHM
02
TTHM
02
TTHM
02
TTHM
02
TTHM
02
Total Haloacetic Acids (HAA5)
02
Total Haloacetic Acids (HAA5)
02
Total Haloacetic Acids (HAA5)
02
Total Haloacetic Acids (HAA5)
02
TTHM
02
TTHM
02
TTHM
02
TTHM
02
How Does This Compare?
GREENFIELD (03047) has 30 recorded violations, including 21 health-based. 1 remains 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.