A85/100
Wilton Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 2,800 residents · Maine
What's In Wilton's Tap Water?
27
Contaminants Tested
0
Exceed EPA Limits
2
Above EPA Goals
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 240.00 µg/L | — | Above Goal |
Lead (90th percentile) | 0.005 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
3
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: December 30, 2024 – March 31, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2024 – March 20, 2025Enforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2022 – May 10, 2023Enforcement: 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
WILTON WATER DEPARTMENT
Population Served
2,800
Water Source
Surface Water
System ID
ME0091620
Frequently Asked Questions About Wilton Water
Is Wilton tap water safe to drink?
Wilton, Maine tap water receives a grade of A (85/100), which is considered excellent. Out of 27 contaminants tested, none exceed EPA maximum contaminant levels (MCLs) and 2 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Wilton's water?
Of the 27 contaminants tested in Wilton's water supply, the most notable include Lead (90th percentile), chlorate. No contaminants exceed EPA legal limits. 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Wilton have any water quality violations?
Yes, Wilton has 9 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, Other. None of these are classified as health-based violations.
Do I need a water filter in Wilton?
Wilton 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. 2 contaminant(s) exceed these stricter goals.
Where does Wilton's tap water come from?
Wilton's drinking water is sourced from surface water and supplied by WILTON WATER DEPARTMENT. The system serves approximately 2,800 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Wilton'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. Wilton'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 Wilton's water compare to other cities in Maine?
Wilton's water quality score of 85/100 earns a grade of A, which is considered excellent. This places Wilton among the better-performing water systems in Maine. Visit our Maine state page to see how all cities in the state compare.
What should I do if I'm concerned about Wilton's water quality?
If you have concerns about Wilton'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 (WILTON WATER DEPARTMENT) 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.