C48/100
Grand Isle Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 2,678 residents · Vermont
What's In Grand Isle's Tap Water?
4
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2016.
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
GRAND ISLE FIRE DISTRICT 4
Population Served
1,078
Water Source
Surface Water
System ID
VT0005139
GRAND ISLE CONSOLIDATED WATER DISTRICT
Population Served
1,600
Water Source
Surface Water
System ID
VT0020614
Frequently Asked Questions About Grand Isle Water
Is Grand Isle tap water safe to drink?
Grand Isle, Vermont tap water receives a grade of C (48/100), which is considered fair. 0 contaminant(s) exceed EPA maximum contaminant levels and 54 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Grand Isle's water?
Of the 4 contaminants tested in Grand Isle'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 Grand Isle have any water quality violations?
Yes, Grand Isle has 54 EPA violation(s) on record, with the most recent in 2023. Violation types include MR, Other, MCL. 11 of these are health-based violations, which are the most serious category.
Do I need a water filter in Grand Isle?
Grand Isle 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 Grand Isle's tap water come from?
Grand Isle's drinking water is sourced from surface water and supplied by GRAND ISLE FIRE DISTRICT 4 and 1 other water system(s). The system serves approximately 2,678 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Grand Isle'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. Grand Isle'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 Grand Isle's water compare to other cities in Vermont?
Grand Isle's water quality score of 48/100 earns a grade of C, which is considered fair. This is a below-average score that indicates room for improvement. Visit our Vermont state page to see how all cities in the state compare.
What should I do if I'm concerned about Grand Isle's water quality?
If you have concerns about Grand Isle'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 (GRAND ISLE FIRE DISTRICT 4) 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.