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Public water system record

Ossining Water Department

Serves Ossining, Westchester County, NY · 30,000 people served

Federal records show no health-based violations and 2 monitoring/reporting issues for Ossining Water Department in the last ten years.

  • NY5903451
  • OSSINING
  • NY
  • 30,000 served

System profile

Source water Surface water
ZIP 10562
EPA system ID NY5903451

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
2

Key facts

  • Ossining Water Department draws water from 1 surface water intake.
  • Record on file since 2002, with 3 health-based violations before October 19, 2016.
  • Lead pipe inventory: 298 lead and 1,275 unknown out of 5,811 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
Haloacetic Acids (HAA5)
Monitoring and reporting
 Apr 1, 2022 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Apr 1, 2022 Resolved

Full record since 2002

EPA's records for Ossining Water Department go back to 2002. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 82 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2000s 3 33
2010 to October 18, 2016 0 49
2020s 0 2

Most recent health-based violation before October 19, 2016: Interim Enhanced Surface Water Treatment Rule, began December 2004, Resolved.

Show all 3 health-based violations before October 19, 2016
Contaminant Start date Status
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
 Dec 15, 2004 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
 Jan 1, 2003 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
 Jun 1, 2002 Resolved

Where the water comes from

Ossining Water Department draws water from 1 surface water intake. It also buys water from New York City - Croton System. It also has an emergency connection to New Castle/Stanwood W.D. 1 other public water system has an emergency connection to Ossining Water Department.

Buys water from

  • New York City - Croton System Katonah, NY

Emergency or part-time connections to

Annual water quality report

Ossining Water Department 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.

Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.

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 New York.

Certified drinking water labs by state EPA guidance for private wells