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
ContaminantDetectedLimit (MCL)Status
PFOA
0.008 µg/L0.004 µg/LOver Limit
PFOS
0.006 µg/L0.004 µg/LOver 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.

Nearby Cities in Connecticut