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Public water system record

Watertown Water & Sewer Authority

Serves Oakville and Watertown, Naugatuck Valley Planning Region, CT · 9,972 people served

Federal records show no health-based violations and 6 monitoring/reporting issues for Watertown Water & Sewer Authority in the last ten years.

  • CT1530021
  • OAKVILLE
  • CT
  • 9,972 served

System profile

Source water Purchased surface water
ZIP 06779
EPA system ID CT1530021

Verify this system on EPA ECHO →

Health-based violations, last 10 years
0
Resolved
0
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
6

Key facts

  • Watertown Water & Sewer Authority buys its water from Waterbury Water Department.
  • Most recent formal enforcement: compliance order with a penalty by Connecticut, October 2006.
  • Record on file since 1995, with 10 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 933 unknown out of 4,070 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

None since October 2016.

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Consumer Confidence Rule
OTHER
 Aug 10, 2025 Resolved
Lead and Copper Rule
Monitoring and reporting
 Dec 30, 2024 Resolved
Consumer Confidence Rule
OTHER
 Jul 1, 2024 Resolved
Consumer Confidence Rule
OTHER
 Aug 10, 2023 Resolved
Consumer Confidence Rule
OTHER
 Jul 1, 2023 Resolved
Lead and Copper Rule
Monitoring and reporting
 Dec 30, 2018 Resolved

Full record since 1995

EPA's records for Watertown Water & Sewer Authority go back to 1995. Before October 19, 2016 they list 10 health-based violations (10 resolved) and 39 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 1 2
2000s 9 31
2010 to October 18, 2016 0 6
October 19, 2016 to 2019 0 1
2020s 0 5

Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began October 2006, Resolved.

Show all 10 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Oct 1, 2006 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.061 mg/L, federal limit 0.06 mg/L (at or just above the limit)
 Jul 1, 2006 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Jan 1, 2006 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.062 mg/L, federal limit 0.06 mg/L (at or just above the limit)
 Jan 1, 2006 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.062 mg/L, federal limit 0.06 mg/L (at or just above the limit)
 Oct 1, 2005 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Jul 1, 2005 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.066 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 Jul 1, 2005 Resolved
Total Coliform
Contaminant limit exceeded
 Oct 1, 2000 Resolved
Total Coliform
Contaminant limit exceeded
 Jul 1, 2000 Resolved
Total Coliform
Contaminant limit exceeded
 May 1, 1998 Resolved

Enforcement actions

Connecticut regulators took 4 formal enforcement actions against Watertown Water & Sewer Authority between 1995 and 2006. The most recent was a compliance order with a penalty in October 2006.

Date By Action Violations covered
Oct 6, 2006 Connecticut Compliance order with a penalty 2 violations: Total Coliform
Dec 13, 2002 Connecticut Compliance order with a penalty 1 violation: Lead and Copper Rule
Jan 10, 2000 Connecticut Signed compliance agreement 1 violation: Total Coliform
Dec 13, 1995 Connecticut Compliance order with a penalty 1 violation: Lead and Copper Rule

Where the water comes from

Watertown Water & Sewer Authority buys its water from Waterbury Water Department. It lists no wells or intakes of its own. It also has an emergency connection to Watertown Fire District.

Buys water from

Emergency or part-time connections to

Annual water quality report

Watertown Water & Sewer Authority must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Connecticut.

Certified drinking water labs by state EPA guidance for private wells