F3/100
Tilton Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 2,500 residents · New Hampshire
What's In Tilton's Tap Water?
1
Contaminants Tested
1
Exceed EPA Limits
0
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.036 mg/L | 0.015 mg/L | Over Limit |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: December 30, 2021 – January 20, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
TILTON NORTHFIELD WATER DIST
Population Served
2,500
Water Source
Groundwater
System ID
NH2351010
Frequently Asked Questions About Tilton Water
Is Tilton tap water safe to drink?
Tilton, New Hampshire tap water receives a grade of F (3/100), which is considered failing. 1 contaminant(s) exceed EPA maximum contaminant levels and 81 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Tilton's water?
Of the 1 contaminants tested in Tilton's water supply, the most notable include Lead (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Tilton have any water quality violations?
Yes, Tilton has 81 EPA violation(s) on record, with the most recent in 2021. Violation types include MR, Other, TT. 2 of these are health-based violations, which are the most serious category.
Do I need a water filter in Tilton?
Based on EPA data, using a water filter in Tilton is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Tilton's tap water come from?
Tilton's drinking water is sourced from groundwater and supplied by TILTON NORTHFIELD WATER DIST. The system serves approximately 2,500 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Tilton's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Tilton's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Tilton's water compare to other cities in New Hampshire?
Tilton's water quality score of 3/100 earns a grade of F, which is considered failing. This is a concerning score that suggests significant water quality issues. Visit our New Hampshire state page to see how all cities in the state compare.
What should I do if I'm concerned about Tilton's water quality?
If you have concerns about Tilton's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (TILTON NORTHFIELD WATER DIST) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.