Tap Truth EPA drinking water records, in plain English

Public water system record

Oklahoma City

Serves Oklahoma City, Warr Acres, The Village and 5 more places, Oklahoma County, OK · 644,000 people served

Federal records show no health-based violations and no monitoring or reporting issues for Oklahoma City in the last ten years.

  • OK1020902
  • OKLAHOMA CITY
  • OK
  • 644,000 served

System profile

Source water Surface water
ZIP 73102
EPA system ID OK1020902

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
0

Key facts

  • Oklahoma City draws water from 3 surface water intakes.
  • Most recent formal enforcement: compliance order with a penalty by Oklahoma, November 2004.
  • Record on file since 1993, with 6 health-based violations before October 19, 2016.
  • Lead pipe inventory: 173 lead and 32,667 unknown out of 254,388 service lines.

Check whether Oklahoma City serves your address

Address suggestions by Mapbox

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, and no monitoring or reporting violations either.

Full record since 1993

EPA's records for Oklahoma City go back to 1993. Before October 19, 2016 they list 6 health-based violations (5 resolved, 1 archived by EPA without a recorded fix) and 3 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 1 0
2000s 4 2
2010 to October 18, 2016 1 1

Most recent health-based violation before October 19, 2016: Interim Enhanced Surface Water Treatment Rule (acute), began January 2012, Resolved.

Show all 6 health-based violations before October 19, 2016
Contaminant Start date Status
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
 Jan 1, 2012 Resolved
CARBON, TOTAL
Treatment technique failure
 Jul 1, 2004 Resolved
CARBON, TOTAL
Treatment technique failure
 Apr 1, 2004 Resolved
CARBON, TOTAL
Treatment technique failure
 Jan 1, 2004 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Mar 1, 2002 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Dec 1, 1993 Archived

Enforcement actions

Oklahoma regulators took 4 formal enforcement actions against Oklahoma City in 2004. The most recent was a compliance order with a penalty in November 2004.

Date By Action Violations covered
Nov 16, 2004 Oklahoma Compliance order with a penalty 1 violation (1 health-based): CARBON, TOTAL
Oct 14, 2004 Oklahoma Compliance order with a penalty 3 violations (3 health-based): CARBON, TOTAL
Sep 7, 2004 Oklahoma Compliance order with a penalty 1 violation (1 health-based): CARBON, TOTAL
May 25, 2004 Oklahoma Compliance order with a penalty 1 violation (1 health-based): CARBON, TOTAL

Where the water comes from

Oklahoma City draws water from 3 surface water intakes. 10 other community water systems and 1 smaller public system such as schools, businesses or campgrounds buy water from Oklahoma City. 3 other public water systems have emergency, seasonal or other part-time connections to Oklahoma City.

Community systems that buy water from it

Annual water quality report

Oklahoma City 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