C47/100
Grantham Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 3,400 residents · New Hampshire
What's In Grantham's Tap Water?
31
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.007 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (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: January 11, 2025 – January 21, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Disinfection byproduct treatment technique failure
When: September 22, 2021 – October 6, 2021Rule: 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
VILLAGE DIST OF EASTMAN
Population Served
3,400
Water Source
Groundwater
System ID
NH0951010
Frequently Asked Questions About Grantham Water
Is Grantham tap water safe to drink?
Grantham, New Hampshire tap water receives a grade of C (47/100), which is considered fair. 0 contaminant(s) exceed EPA maximum contaminant levels and 34 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Grantham's water?
Of the 31 contaminants tested in Grantham's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Grantham have any water quality violations?
Yes, Grantham has 34 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, Other, MCL. 4 of these are health-based violations, which are the most serious category.
Do I need a water filter in Grantham?
Grantham water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. 1 contaminant(s) exceed these stricter goals.
Where does Grantham's tap water come from?
Grantham's drinking water is sourced from groundwater and supplied by VILLAGE DIST OF EASTMAN. The system serves approximately 3,400 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Grantham'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. Grantham'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 Grantham's water compare to other cities in New Hampshire?
Grantham's water quality score of 47/100 earns a grade of C, which is considered fair. This is a below-average score that indicates room for improvement. Visit our New Hampshire state page to see how all cities in the state compare.
What should I do if I'm concerned about Grantham's water quality?
If you have concerns about Grantham'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 (VILLAGE DIST OF EASTMAN) 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.