C49/100
Clinton Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 231,446 residents · Connecticut
What's In Clinton's Tap Water?
69
Contaminants Tested
2
Exceed EPA Limits
0
Above EPA Goals
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOA | 0.008 µg/L | 0.004 µg/L | Over Limit |
PFOS | 0.006 µg/L | 0.004 µg/L | Over Limit |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Violation related to Turbidity
When: December 14, 2024Rule: 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
AVON WATER CO
Population Served
11,590
Water Source
Groundwater
System ID
CT0040011
CTWC - NAUGATUCK REG-COLLINSVILLE SYS
Population Served
6,324
Water Source
Surface Water
System ID
CT0230011
CTWC - SHORELINE REGION-CHESTER SYSTEM
Population Served
5,030
Water Source
Surface Water
System ID
CT0261031
CTWC - NORTHERN REG-WESTERN SYSTEM
Population Served
101,313
Water Source
Surface Water
System ID
CT0473011
CTWC - UNIONVILLE SYSTEM
Population Served
14,693
Water Source
Purchased Surface Water
System ID
CT0520011
CTWC - SHORELINE REGION-GUILFORD SYSTEM
Population Served
33,975
Water Source
Surface Water
System ID
CT0608011
CTWC - HEBRON CENTER DIVISION
Population Served
1,927
Water Source
Groundwater
System ID
CT0672031
CTWC - CRYSTAL SYSTEM
Population Served
6,378
Water Source
Groundwater
System ID
CT0690011
CTWC - LEGEND HILL SYSTEM
Population Served
1,368
Water Source
Groundwater
System ID
CT0765101
CTWC - NAUGATUCK REGION-CENTRAL SYSTEM
Population Served
22,735
Water Source
Surface Water
System ID
CT0880011
CTWC - SHORELINE REGION-SOUND VIEW
Population Served
3,028
Water Source
Groundwater
System ID
CT1050732
CTWC - SHORELINE REGION-POINT O WOODS
Population Served
1,068
Water Source
Groundwater
System ID
CT1050752
CTWC - GALLUP SYSTEM
Population Served
2,538
Water Source
Groundwater
System ID
CT1090031
CTWC - PLAINFIELD SYSTEM
Population Served
1,713
Water Source
Groundwater
System ID
CT1090081
CTWC - NAUGATUCK REG-TERRYVILLE SYSTEM
Population Served
5,607
Water Source
Groundwater
System ID
CT1110011
HERITAGE WATER COMPANY
Population Served
7,300
Water Source
Purchased Surface Water
System ID
CT1300021
CTWC - NAUGATUCK REG-THOMASTON SYSTEM
Population Served
3,789
Water Source
Groundwater
System ID
CT1400011
CTWC - THOMPSON SYSTEM
Population Served
1,070
Water Source
Groundwater
System ID
CT1410011
Frequently Asked Questions About Clinton Water
Is Clinton tap water safe to drink?
Clinton, Connecticut tap water receives a grade of C (49/100), which is considered fair. 3 contaminant(s) exceed EPA maximum contaminant levels and 1125 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Clinton's water?
Of the 73 contaminants tested in Clinton's water supply, the most notable include PFOA, PFOS, Copper (90th percentile), Lead (90th percentile). 3 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 Clinton have any water quality violations?
Yes, Clinton has 1125 EPA violation(s) on record, with the most recent in 2024. Violation types include Other, MR, TT. 40 of these are health-based violations, which are the most serious category.
Do I need a water filter in Clinton?
Based on EPA data, using a water filter in Clinton is recommended. 3 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 Clinton's tap water come from?
Clinton's drinking water is sourced from groundwater and supplied by AVON WATER CO and 17 other water system(s). The system serves approximately 231,446 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Clinton'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. Clinton'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 Clinton's water compare to other cities in Connecticut?
Clinton's water quality score of 49/100 earns a grade of C, which is considered fair. This is a below-average score that indicates room for improvement. Visit our Connecticut state page to see how all cities in the state compare.
What should I do if I'm concerned about Clinton's water quality?
If you have concerns about Clinton'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 (AVON WATER CO) 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.