County · Connecticut
Litchfield County, Connecticut: drinking water records
Explore EPA records for 76 community water systems across 40 ZIP codes in Litchfield County, then find water-testing resources and available recent monitoring-station readings.
Data as of EPA UCMR 5 final release, August 2026 (file dated Aug 28, 2026) · EPA SDWIS 2026Q2 (file dated Jul 9, 2026). How we build these pages
Drinking-water records
EPA survey and compliance records are historical reports. UCMR 5 results are available for 9 of the 76 listed systems in this snapshot. A system with no reported PFAS detection is not a test of every tap or every contaminant.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems in this county
All 76 active community systems in the available county records, sorted by record completeness. Scroll the table to explore more systems.
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Torrington Water Company CT1430011 | 37,915 | 120 | 0 | 1 | 0 ppbbelow the action level |
| Aquarion-New Milford Regional CT0960011 | 13,331 | 300 | 5 | 0 | 2 ppbbelow the action level |
| Watertown Water & Sewer Authority CT1530021 | 9,972 | 120 | 0 | 0 | 2 ppbbelow the action level |
| Winsted Water Works CT1620011 | 7,784 | 120 | 0 | 0 | 0 ppbbelow the action level |
| Watertown Fire District CT1530011 | 6,718 | 60 | 0 | 0 | 4 ppbbelow the action level |
| Ctwc - Naugatuck Reg-Terryville System CT1110011 | 5,607 | 120 | 0 | 0 | 0.6 ppbbelow the action level |
| Ctwc - Naugatuck Reg-Thomaston System CT1400011 | 3,789 | 60 | 0 | 0 | 2.8 ppbbelow the action level |
| Aquarion-Litchfield Regional CT0740011 | 3,097 | 240 | 0 | 0 | 0 ppbbelow the action level |
| Aquarion-New Hartford CT0920011 | 1,872 | 120 | 0 | 0 | 1.3 ppbbelow the action level |
| Sharon Water & Sewer Commission CT1250011 | 803 | 0 | 0 | 1 | 0.8 ppbbelow the action level |
| Sunny Valley Tax District CT0960031 | 500 | 0 | 0 | 5 | 1.6 ppbbelow the action level |
| Aquarion-Falls Village CT0210011 | 488 | 0 | 0 | 3 | 2 ppbbelow the action level |
| Village Market Place CT0550321 | 462 | 0 | 0 | 2 | 0 ppbbelow the action level |
| Woodbury Knoll, LLC. CT1680051 | 258 | 0 | 0 | 1 | 8.4 ppbbelow the action level |
| Candle Hill Mobile Home Park CT0960151 | 233 | 0 | 0 | 1 | 2 ppbbelow the action level |
| South Kent School CT0680082 | 228 | 0 | 0 | 1 | 7.0 ppbbelow the action level |
| Lillinonah Park Estates Homeowners Assn CT0960171 | 128 | 0 | 0 | 2 | 6.8 ppbbelow the action level |
| Heritage Hill Condominium Assn, INC CT1680061 | 120 | 0 | 0 | 1 | 5 ppbbelow the action level |
| Lake Hills Village Condominiums CT1660011 | 102 | 0 | 0 | 1 | 2 ppbbelow the action level |
| Arrow Point Water Co CT1490021 | 84 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Woodhall School, INC CT0105033 | 68 | 0 | 0 | 3 | 1 ppbbelow the action level |
| Little Brook Rd Property Owners Assn CT0920041 | 64 | 0 | 0 | 3 | 0 ppbbelow the action level |
| Cornwall Water Company CT0311011 | 48 | 0 | 0 | 3 | 0.6 ppbbelow the action level |
| Eldridge Elderly Housing CT0878021 | 40 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Foxridge Apartments-Well 2 CT0055071 | 25 | 0 | 0 | 1 | 1.9 ppbbelow the action level |
| Aquarion-Salisbury CT1220011 | 1,932 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Aquarion-North Canaan CT1000011 | 1,481 | 0 | 0 | 0 | 1.3 ppbbelow the action level |
| Aquarion-Woodbury CT1680011 | 1,209 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Aquarion-Norfolk CT0980011 | 913 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Woodlake Tax District CT1680031 | 912 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Aquarion-Kent CT0680011 | 817 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Clc Owners Corporation CT0960071 | 736 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Kent School Corp (Valley Campus) CT0680021 | 722 | 0 | 0 | 0 | 2.4 ppbbelow the action level |
| Watertown Water & Sewer - Westgate CT1539031 | 600 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Salisbury School CT1220061 | 520 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Rumsey Hall School CT1501111 | 398 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Aquarion-Meadowbrook CT0960201 | 396 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Aquarion-Carmen Hill CT0960101 | 322 | 0 | 0 | 0 | 1.3 ppbbelow the action level |
| Candlewood Trails Association, INC. CT0960091 | 312 | 0 | 0 | 0 | 0.9 ppbbelow the action level |
| Birch Groves Association, INC CT0960061 | 300 | 0 | 0 | 0 | 2.0 ppbbelow the action level |
| The Frederick Gunn School, INC. CT1500051 | 300 | 0 | 0 | 0 | 6.5 ppbbelow the action level |
| Old Farms Condominium Association INC CT0960191 | 285 | 0 | 0 | 0 | 1.7 ppbbelow the action level |
| Aquarion-Forest Hills CT0960141 | 265 | 0 | 0 | 0 | 3 ppbbelow the action level |
| The Marvelwood School CT0680031 | 220 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Aquarion-Judea Main CT1500021 | 219 | 0 | 0 | 0 | 3.7 ppbbelow the action level |
| Aquarion-Dean Heights CT0960161 | 162 | 0 | 0 | 0 | 1.1 ppbbelow the action level |
| Aquarion-Twin Oaks CT0968011 | 152 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Candlewood Springs Property Owners Assn CT0960211 | 148 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Aquarion-Tyler Lake CT0550011 | 142 | 0 | 0 | 0 | 0 ppbbelow the action level |
| New Preston Water Co CT1500011 | 139 | 0 | 0 | 0 | 5 ppbbelow the action level |
| Bee Brook Crossing Condominiums CT1500031 | 120 | 0 | 0 | 0 | 3.7 ppbbelow the action level |
| Brookwoods II CT0688011 | 120 | 0 | 0 | 0 | 2.1 ppbbelow the action level |
| Town in Country Condominiums - Lower Sys CT1686091 | 120 | 0 | 0 | 0 | 0.9 ppbbelow the action level |
| Town in Country Condominiums - Upper Sys CT1680021 | 120 | 0 | 0 | 0 | 0.8 ppbbelow the action level |
| Quassuk Heights Condominium Assn CT1680041 | 108 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Fernwood Rest Home CT0740301 | 107 | 0 | 0 | 0 | 2.3 ppbbelow the action level |
| Breezy Knoll Association CT0878011 | 100 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Aquarion-Cornwall CT0310011 | 98 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Bantam Village CT0743011 | 96 | 0 | 0 | 0 | 3.0 ppbbelow the action level |
| Aquarion-Quarry Ridge CT1500341 | 84 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Aquarion-Laurel Ridge CT0960221 | 80 | 0 | 0 | 0 | 0 ppbbelow the action level |
| North Purchase Elderly Housing CT0100011 | 72 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Woodbury Place Condominium Assn CT1680071 | 72 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Aquarion-Judea Depot CT1500091 | 68 | 0 | 0 | 0 | 6 ppbbelow the action level |
| Chatfield Hill Assn., INC. CT1221031 | 68 | 0 | 0 | 0 | 0.3 ppbbelow the action level |
| Sharon Ridge Apartments CT1250021 | 62 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Rocktree Apartments CT0050011 | 60 | 0 | 0 | 0 | 7 ppbbelow the action level |
| Kugeman Village CT0311021 | 54 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Bridgewater Commons Condominiums CT0161011 | 51 | 0 | 0 | 0 | 13 ppbbelow the action level |
| Barkhamsted Hills LLC CT0051031 | 50 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Touchstone N.A.F.I. CT0745093 | 43 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Dodge Farm CT1500321 | 42 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Garden Lane Apartments CT0660341 | 40 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Aquarion-Park Glen CT0969361 | 37 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Bernhardt Meadow CT1200071 | 36 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Foxridge Apartments-Well 1 CT0051011 | 25 | 0 | 0 | 0 | 4.6 ppbbelow the action level |
USGS · Monitoring stations
The water, more recently.
Available station readings in Litchfield County, Connecticut. Each measurement keeps its time, unit and original source.
These readings describe water at a monitoring station. They do not test your tap, measure PFAS or lead, or determine whether water is safe to drink or swim in.
Recent observations load when this section comes into view.
How these readings update
We check for updates every 10 minutes while this section is visible and show supported observations from the last 48 hours. The time beside a reading is when USGS measured it; the checked time is when our service retrieved the response. We mark a reading more than 6 hours old as older. Provisional observations can change after USGS review. A missing reading does not mean zero or clean water.
Temperature, pH, dissolved oxygen, turbidity, conductivity, streamflow and water level are shown only where a station reports them. Different measurements have different units and sampling intervals. USGS data and documentation.
Your next step
Water testing, reports & local help.
Use these official directories to find your drinking-water agency, a certified laboratory and public water records. We have not yet added an individually reviewed local resource list for this county.
Official national directories
Water testing
Find your state’s private-well program
EPA’s state directory points well owners to local program information. Services and eligibility vary by state and county.
Water testing
Find a certified drinking-water laboratory
Use EPA’s directory to reach your state’s laboratory certification program. EPA does not provide on-request testing of residential drinking water.
Public records
Find your utility’s Consumer Confidence Report
EPA links to community water-system reports and explains how to read them. Look for your actual supplier rather than assuming every address in a county shares one system.
Public records
Explore USGS water observations
Find current and historical observations from USGS monitoring locations, including available stream, lake, and groundwater data. Measurements vary by station and do not replace a test of your household water.
A county overview cannot identify every property’s water provider. If you use a public water system, confirm its name on your bill and request its annual Consumer Confidence Report. Private wells need their own testing; public-system records do not describe a private well.
Understand water testing and laboratory reportsResource descriptions are compiled by Tap Water Lookup. Review dates describe our source check, not a new water sample. How we review sources · Suggest a correction
Explore your area
Local coverage in Litchfield County
40ZIP areas in this overview
Explore the water-system records, recent station readings and testing resources on this county page. They describe the systems and stations identified in each section; they are not a separate water test for every community.
Towns and communities
- Bantam
- Bethlehem Village
- Bridgewater
- Canaan
- Cornwall
- Cornwall Bridge
- Falls Village
- Gaylordsville
- Lakeville
- Litchfield
- New Hartford Center
- New Milford
- New Preston
- Norfolk
- Northwest Harwinton
- Oakville
- Pleasant Valley
- Sharon
- Terryville
- Thomaston
- Torrington
- Watertown
- West Cornwall
- Winsted
- Woodbury Center
View ZIP areas and understand coverage
- 06018Canaan
- 06021
- 06024
- 06031Falls Village
- 06039Lakeville
- 06057New Hartford Center
- 06058Norfolk
- 06061New Hartford Center
- 06063Pleasant Valley
- 06068Lakeville
- 06069Sharon
- 06079
- 06098Winsted
- 06750Bantam
- 06751Bethlehem Village
- 06752Bridgewater
- 06753Cornwall
- 06754Cornwall Bridge
- 06755Gaylordsville
- 06756
- 06757
- 06758
- 06759Litchfield
- 06763
- 06776New Milford
- 06777New Preston
- 06778
- 06779Oakville
- 06782
- 06783
- 06785
- 06786Terryville
- 06787Thomaston
- 06790Torrington
- 06791Northwest Harwinton
- 06793
- 06794New Preston
- 06795Watertown
- 06796West Cornwall
- 06798Woodbury Center
These Census ZIP Code Tabulation Areas are grouped here by their largest county overlap. A ZIP area can cross county lines and contain several water suppliers or private wells. Place labels reflect Census geography, not verified postal city names or utility service boundaries.
Records for these areas are currently presented in this county overview rather than individual ZIP reports. An unpublished report does not mean there are no water records. Confirm your supplier on your water bill; if you use a private well, testing your own well is the relevant next step.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Database prepared 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.
Compiled by Tap Water Lookup from the sources identified on this page. Read the methodology and review process.