Water Quality in MERRIMACK, NH (03054)
EPA violation data for public water systems serving ZIP code 03054.
117
Total Violations
0
Health-Based
117
Monitoring / Reporting
96
Resolved
What does this mean?
96 of 117 violations have been resolved. None of these are health-based violations — no contaminant levels exceeded federal safety limits. The remaining 117 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 (117 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Public Notice | Monitoring | N/A | N/A | Mar 6, 2023 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Mar 6, 2023 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Mar 6, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Mar 6, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Mar 6, 2023 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Mar 6, 2023 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Mar 6, 2023 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Mar 6, 2023 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Mar 6, 2023 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Mar 6, 2023 | Active | N/A |
Lead & Copper Levels
Violation Timeline
2023(25)
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
2022(2)
Consumer Confidence Rule
71
Consumer Confidence Rule
71
How Does This Compare?
MERRIMACK (03054) has 117 recorded violations, none of which are health-based. 21 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.
Reverse Osmosis System
One of the few filtration methods effective at removing nitrates and nitrites. Essential for households with infants.
Targets:Nitrate, Nitrite, Dissolved Solids
Look for:NSF/ANSI 58 certified
Always look for filters certified by NSF International for the specific contaminants you want to remove.