Community Water System · PWSID CT1510011

Waterbury Water Department

Serves 107,271 peopleSurface WaterOwner: Local GovernmentWaterbury, Connecticut

Nothing open right now.

On record since 2006: 11 violations. 4 missed or late tests · 7 notices or reports. Most recent began 2024-07-01.

None of them is a measurement of contaminated water.

For this year's test results, ask the utility for its annual Consumer Confidence Report. Every community system must publish one.

0Over the limit

0Treatment lapse

4Missed or late test

7Notice or report

More violations on record than 71% of active water systems in Connecticut. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.

36% missed or late test · 464% notice or report · 7

Across Connecticut, 76% of violations are missed or late tests and 1% are water over a limit.

Lead & copper at the tap

Utilities sample taps in homes most likely to have lead pipes, and report the 90th-percentile result: 9 in 10 homes sampled came in at or below this number. Above the red line (the action level) the utility must act. The action level is not a safe level; EPA's health goal for lead is zero. EPA's file does not date these results, so they are shown highest first.

Lead, 90th percentile 34 results on file · action level 15 ppb

34 ppb

26 ppb

10 ppb

7 ppb

6 ppb

4 ppb

2 ppb

1 ppb

0.05 ppb

0.01 ppb

0 ppb

Every violation on record

2024-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
2022-12-30Lead and Copper RuleLead Consumer NoticeBack in compliance
2022-08-10Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
2021-08-10Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
2021-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
2017-02-01E. ColiMonitoring, Source Water (LT2)Back in compliance
2016-12-30Lead and Copper RuleLead Consumer NoticeBack in compliance
2015-12-01Coliform (TCR)Monitoring, Repeat Minor (TCR)Back in compliance
2010-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
2010-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
2006-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served	107,271
Service connections	26,915
Water source	Surface Water
System type	Community Water System
Owner	Local Government
Status	Active
City	Waterbury
EPA ZIP on file	06708

Areas served

New Haven County

Reading this record

Waterbury Water Department is a community water system that draws from surface water and serves about 107,271 people in Waterbury, Connecticut. Everything above comes from the EPA's Safe Drinking Water Information System (SDWIS), where states report every violation by every public water system.

Four kinds of violation. Only one is a measurement of the water: over the limit means a test came back above a legal maximum (an MCL). A treatment lapse means a required protective step was not done, such as disinfection, filtration, fixing a defect an inspector found, or filing a lead-pipe inventory. A missed or late test means a required test was skipped or never reported. That is the most common kind, and the most misread: it does not mean the water was bad, and it does not mean the water was fine. Notices and reports covers public notices and the annual Consumer Confidence Report.

Status. “Back in compliance” means the state recorded a return to compliance. “Period ended” means the violation's compliance period is over but no return to compliance was ever filed, which is common in older records. EPA's federal copy lags state records by months, so call the utility for anything current.