B62/100
Waterville Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 22,060 residents · Maine
What's In Waterville's Tap Water?
70
Contaminants Tested
2
Exceed EPA Limits
2
Above EPA Goals
4 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 2.46 mg/L | 1.30 mg/L | Over Limit |
PFOA | 0.005 µg/L | 0.004 µg/L | Over Limit |
chlorate | 260.00 µg/L | — | Above Goal |
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
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 – March 23, 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
KENNEBEC WATER DISTRICT
Population Served
22,060
Water Source
Surface Water
System ID
ME0090750
Frequently Asked Questions About Waterville Water
Is Waterville tap water safe to drink?
Waterville, Maine tap water receives a grade of B (62/100), which is considered good. Out of 70 contaminants tested, 2 exceed EPA maximum contaminant levels (MCLs) and 4 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 Waterville's water?
Of the 70 contaminants tested in Waterville's water supply, the most notable include Copper (90th percentile), PFOA, Lead (90th percentile), chlorate. 2 contaminant(s) exceed EPA legal limits (MCLs). 4 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Waterville have any water quality violations?
Yes, Waterville has 12 EPA violation(s) on record, with the most recent in 2021. Violation types include MR, Other, MCL. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in Waterville?
Based on EPA data, using a water filter in Waterville is recommended. 2 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 Waterville's tap water come from?
Waterville's drinking water is sourced from surface water and supplied by KENNEBEC WATER DISTRICT. The system serves approximately 22,060 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Waterville'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. Waterville'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 Waterville's water compare to other cities in Maine?
Waterville's water quality score of 62/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our Maine state page to see how all cities in the state compare.
What should I do if I'm concerned about Waterville's water quality?
If you have concerns about Waterville'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 (KENNEBEC WATER DISTRICT) 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.