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Water Quality Report

Our number one goal is to provide customers with safe, reliable drinking water.

More than 170,000 water quality tests are conducted each year on the water delivered to our customers. That’s an average of 400 tests each day.

We test routinely for over 120 potential contaminants and parameters that could affect the quality of your tap water. The test results are summarized in an Annual Water Quality Report which is available posted on our website. (Below.)

The Annual Water Quality Report also includes information about a Source Water Assessment done by the Connecticut Department of Public Health (DPH), which is used to assess the susceptibility of water sources to potential contamination.

We operate 70 different water systems across the state. Find your system’s water report below. Some towns are served by more than one water system. If you are not sure which system serves your home or location, please call our customer service team at 1-800-286-5700 or email your address to us via this form.

For general information on water quality, please visit our Common Questions About Water Quality page.

Town

Water System(s)

Ashford

Ashford Elderly/Pompey Hollow, Ashford Park

Avon

Collinsville, Unionville, Avon (Avon Water Co.)

Beacon Falls

Central

Bethany

Central

Bolton

Llynwood

Brooklyn

Crystal

Burlington

Collinsville

Canton

Collinsville

Chester

Chester, Chester Village West

Clinton

Guilford

Colchester

Amston Lake, Ponemah Village, Westchester Village

Columbia

Columbia Heights

Coventry

Coventry Hills, General Water, Lakeview, Lakewood, Nathan Hale, Pilgrim Hills, South Coventry

Deep River

Chester

East Granby

Northern-Western

East Haddam

Banner Village, Lake Hayward

East Hampton

Baker Hill/Laurel Ridge, Spice Hill, Westchester East

East Windsor

Northern-Western

Ellington

Northern-Western

Enfield

Northern-Western

Essex

Chester

Farmington

Chimney Hill, Unionville, Avon

Griswold

Bay MountainCountry Mobile Estates

Guilford

Guilford

Hebron

Amston Lake, Hebron Center, London ParkWellswood Village

Killingly

Crystal

Killingworth

Beechwood

Lebanon

Amston Lake, Lebanon Elderly

Madison

Green Springs, Guilford, Legend Hill

Manchester

Redwood Farms

Mansfield

Birchwood Heights, Crystal Springs, Pinewoods Lane, Rolling Hills*, Storrs Mansfield,
UCONN Depot, UCONN Hunting Lodge, UCONN South Eagleville, UCONN Willowbrook

Marlborough

Florence Lord Elderly-MASH, Forest Homes, Marlborough Gardens, Sachem Village

Middlebury

Central, Hill Crest Fire District

Naugatuck

Central

Old Lyme

Point O’Woods, Soundview

Old Saybrook

Guilford

Plainfield

Gallup, Plainfield

Plymouth

Terryville

Portland

Rivercrest

Prospect

Central

Somers

Northern-Western

Southbury

Heritage Village (Heritage Village Water Co.)

South Windsor

Northern-Western

Stafford

Stafford Springs

Stonington

Masons Island

Storrs Mansfield

Storrs Mansfield

Suffield

Northern-Western

Thomaston

Thomaston

Thompson

Thompson

Tolland

Northern-Western

Vernon

Llynwood, Reservoir Heights, Northern-Western

Voluntown

SDC

Waterbury

Central

Westbrook

Guilford

Willington

Riversedge

Windsor Locks

Northern-Western

Woodstock

Cornfield Point

*Rolling Hills is now served by the Western Water System.