Water Service Outages in Oklahoma by City
75% of Oklahoma's 889 community water systems have had at least one health-based EPA violation since 2015, one of the highest shares of any state.
Oklahoma drinking water record
Busiest year: 2024 (1,328 violations). Counted by the year the violation period began. Source: EPA SDWIS.
- Community water systems: 889 active systems serve about 3,653,821 people. 745 of them (84%) serve 3,300 people or fewer; 415 draw mainly on groundwater and 464 on surface water.
- Health-based violations since 2015: 11,078, at 666 systems (75% of all systems). That share is the highest of the 50 states.
- Most common problems: contaminant averages over the limit (8,509); disinfection byproduct precursors (514); contaminant readings over the limit (496). Source: EPA SDWIS
- Largest system: Oklahoma City, about 644,000 people, with 0 health-based violations since 2015. Source: EPA SDWIS
- Housing age: the median Oklahoma home was built in 1980 (US 1980). Source: US Census Bureau, ACS 2020–2024 (table B25035)
| System | People served | Main source | Health violations since 2015 |
|---|---|---|---|
| Oklahoma City | 644,000 | Surface water | 0 |
| Tulsa | 413,000 | Surface water | 0 |
| Broken Arrow Municipal Authority | 116,330 | Surface water | 0 |
| Norman Utilities Authority | 104,868 | Surface water | 1 |
| Lawton | 92,757 | Surface water | 0 |
| Edmond Pwa | 79,408 | Surface water | 0 |
Source: EPA SDWIS.
Oklahoma is 7th of 7 (1 = lowest share). Source: EPA SDWIS.
Checked September 2026.
Who to call in Oklahoma, city by city
5 Oklahoma cities on this site and the water utility for each. What to do while you wait is in our water service outage guide.
- Oklahoma City Oklahoma City Utilities Department
- Tulsa City of Tulsa Water and Sewer
- Norman City of Norman Utilities
- Broken Arrow City of Broken Arrow Utilities
- Lawton City of Lawton Public Works
Frequently asked questions
Is there a water service outage in Oklahoma right now?
Not on this site: no reports from Oklahoma in the last 24 hours.
How many public water systems are in Oklahoma?
EPA records list 889 active community water systems in Oklahoma, serving about 3,653,821 people. 84% serve 3,300 people or fewer.
How common are drinking water violations in Oklahoma?
Since 2015, 666 of 889 community water systems in Oklahoma (75%) have had at least one health-based violation, 11,078 in total.
What is the largest water system in Oklahoma?
Oklahoma City, which EPA records list as serving about 644,000 people.
Report counts are user-submitted; other figures name their official source. How our data works
Cities in Oklahoma with Water Service Outages Information
Broken Arrow
no reports in the last 24 hours · pop. 113,540
City of Broken Arrow Utilities
Lawton
no reports in the last 24 hours · pop. 93,638
City of Lawton Public Works
Norman
no reports in the last 24 hours · pop. 128,026
City of Norman Utilities
Oklahoma City
no reports in the last 24 hours · pop. 681,054
Oklahoma City Utilities Department
Tulsa
no reports in the last 24 hours · pop. 413,066
City of Tulsa Water and Sewer