Water Quality in DERRY, NH (03038)
EPA violation data for public water systems serving ZIP code 03038.
72
Total Violations
16
Health-Based
56
Monitoring / Reporting
72
Resolved
What does this mean?
72 of 72 violations have been resolved. 16 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 56 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 (72 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Nitrate | Health-Based | N/A | 11.6 | Jun 30, 2023 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Health-Based | N/A | 11.6 | Jun 30, 2023 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Health-Based | N/A | 11.6 | Jun 30, 2023 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Health-Based | N/A | 11.6 | Jun 30, 2023 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Health-Based | N/A | 11 | Mar 31, 2023 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Health-Based | N/A | 11 | Mar 31, 2023 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Health-Based | N/A | 11 | Mar 31, 2023 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Health-Based | N/A | 11 | Mar 31, 2023 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jan 10, 2023 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jan 10, 2023 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2023(12)
Nitrate
01
Nitrate
01
Nitrate
01
Nitrate
01
Nitrate
01
Nitrate
01
Nitrate
01
Nitrate
01
Lead and Copper Rule
53
Lead and Copper Rule
53
Lead and Copper Rule
53
Lead and Copper Rule
53
2022(28)
E. COLI
34
E. COLI
34
E. COLI
34
E. COLI
34
Lead and Copper Rule
58
Lead and Copper Rule
58
Lead and Copper Rule
58
Lead and Copper Rule
58
Lead and Copper Rule
53
Lead and Copper Rule
53
Lead and Copper Rule
53
Lead and Copper Rule
53
Lead and Copper Rule
53
Lead and Copper Rule
53
Lead and Copper Rule
53
Lead and Copper Rule
53
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
4B
Revised Total Coliform Rule
4B
How Does This Compare?
DERRY (03038) has 72 recorded violations, including 16 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.