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Public water system · CT0860081

Active

Scwa, Chesterfield Division

At a glance

Scwa, Chesterfield Division (PWSID CT0860081) is an active community water system in New London County, Connecticut. It reports serving 524 people through 131 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is not health-based, and the most recent began in July 2004.

Dataset updated . Source: EPA SDWIS/ECHO public records.

Population served

524

Service connections

131

Primary source

GW

Groundwater

System type

CWS

Community water system

System record

PWSIDCT0860081
System typeCommunity water system
Activity statusActive
Population served524
Service connections131
Primary water sourceGroundwater
Owner typeLocal government
Primacy agencyCT state drinking water program
City servedMontville
StateConnecticut
ZIP—
CountyNew London County

How does Scwa, Chesterfield Division compare with other water systems in New London County?

By EPA's size categories, Scwa, Chesterfield Division is a small system (501 to 3,300 people). New London County has 394 active public water systems. Its population served is roughly in line with the county average of 532 people per system, and accounts for 0.3% of the 209,444 people reported by systems filed under the county. Across Connecticut, the 2,363 active systems average 1,247 people each. Nationally, the average active community water system reports serving 6,703 people, so Scwa, Chesterfield Division is well below that figure.

What does “community water system” mean?

A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Connecticut has 481 active community water systems, 20% of the state's 2,363 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,263 Connecticut systems (96%) list groundwater as their primary source.

Who owns and regulates Scwa, Chesterfield Division?

EPA lists Scwa, Chesterfield Division as owned by a local government. The CT state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 64 of the 394 active systems in New London County (16%) are also owned by a local government.

Does Scwa, Chesterfield Division have drinking water violations?

EPA's records list one violation for this system; it is not health-based, and the most recent began in July 2004. By type: 1 public notice, recordkeeping or other. The contaminant or rule involved is Consumer Confidence Rule. EPA lists 1 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.

BeganViolationContaminant or ruleHealth-basedStatus
2004-07-01Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71Consumer Confidence Rulecode 7000NoResolved

The one violation in EPA's records.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.

Scwa, Chesterfield Division: frequently asked questions

Who runs Scwa, Chesterfield Division?

Scwa, Chesterfield Division (PWSID CT0860081) is a community water system owned by a local government. It is regulated by the CT state drinking water program.

How many people does Scwa, Chesterfield Division serve?

Scwa, Chesterfield Division reports serving 524 people through 131 service connections in New London County, Connecticut.

Where does Scwa, Chesterfield Division get its water?

EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.

Does Scwa, Chesterfield Division have any drinking water violations?

EPA's records list one violation for this system; it is not health-based, and the most recent began in July 2004. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.

Is Scwa, Chesterfield Division's water safe to drink?

AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list one violation for this system; it is not health-based, and the most recent began in July 2004. For current results, consult the system's annual water quality report, EPA ECHO, or the CT state drinking water program.

Where can I find Scwa, Chesterfield Division's water quality report?

As a community water system, Scwa, Chesterfield Division must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.

Other water systems in New London County

Water systemCountyPopulation servedTypeSource
Norwich Public UtilitiesNew London36,163CommunitySurface water
Groton UtilitiesNew London30,200CommunitySurface water
New London Dept. of Public UtilitiesNew London27,620CommunitySurface water
Waterford WpcaNew London16,578CommunityPurchased surface water
East Lyme Water & Sewer CommissionNew London15,245CommunityPurchased surface water
Aquarion-MysticNew London10,788CommunitySurface water

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About this data

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.

Cite as: AquaCensus, “Scwa, Chesterfield Division, PWSID CT0860081, Connecticut”, https://aquacensus.com/water-systems/connecticut/scwa-chesterfield-division-ct0860081 (data as of October 1, 2026).