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Public water system record

Owasso

Serves Owasso, Tulsa County, OK · 23,000 people served

Federal records show 1 health-based violation and 2 monitoring/reporting issues for Owasso in the last ten years. The most serious issue in this window was a resolved LEAD AND COPPER RULE REVISIONS violation.

  • OK3007218
  • OWASSO
  • OK
  • 23,000 served

System profile

Source water Purchased surface water
ZIP 74055
EPA system ID OK3007218

Verify this system on EPA ECHO →

Health-based violations, last 10 years
1
Resolved
1
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
2

Key facts

  • Owasso buys its water from Tulsa.
  • Record on file since 1991, with 7 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 10 unknown out of 10,468 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.

Contaminant Rule family Start date Status Acute
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
 350 Oct 17, 2024 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
LEAD AND COPPER RULE REVISIONS
RPT
 Oct 17, 2024 Resolved
Lead and Copper Rule
Monitoring and reporting
 Oct 1, 2016 Resolved

Full record since 1991

EPA's records for Owasso go back to 1991. Before October 19, 2016 they list 7 health-based violations (7 resolved) and 20 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 1 15
2000s 4 4
2010 to October 18, 2016 2 1
2020s 1 1

Most recent health-based violation before October 19, 2016: Total Coliform, began February 2013, Resolved.

Show all 7 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
 Feb 1, 2013 Resolved
Total Coliform
Contaminant limit exceeded
 Oct 1, 2011 Resolved
Total Coliform
Contaminant limit exceeded
 Dec 1, 2005 Resolved
Total Coliform
Contaminant limit exceeded
 Oct 1, 2005 Resolved
Total Coliform
Contaminant limit exceeded
 Nov 1, 2004 Resolved
Total Coliform
Contaminant limit exceeded
 Sep 1, 2003 Resolved
Total Coliform
Contaminant limit exceeded
 Sep 1, 1992 Resolved

What the violations mean

LEAD AND COPPER RULE REVISIONS

1 incident

The system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).

The utility had to notify customers about this violation.

Where the water comes from

Owasso buys its water from Tulsa. It lists no wells or intakes of its own.

Buys water from

Annual water quality report

Owasso 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 Oklahoma.

Certified drinking water labs by state EPA guidance for private wells