Public water system record
Enid
Serves an area of Garfield County and Major County, OK that includes Enid, North Enid and Carrier · 49,347 people served
Federal records show 1 health-based violation and 12 monitoring/reporting issues for Enid in the last ten years. The most serious issue in this window was a resolved LEAD AND COPPER RULE REVISIONS violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 12
Key facts
- Enid draws water from 114 wells (1 of them for emergency, seasonal or other part-time use).
- Most recent formal enforcement: compliance order with a penalty by Oklahoma, April 2006.
- Record on file since 1991, with 6 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 13,055 unknown out of 13,206 service lines.
Check whether Enid serves your address
Health-based violations
Since October 2016Violation 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 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Resolved |
|
Asbestos
Monitoring and reporting
|
Jan 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Asbestos
Monitoring and reporting
|
Jan 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Asbestos
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Sep 1, 2021 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Sep 1, 2021 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Sep 1, 2019 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Sep 1, 2019 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Sep 1, 2018 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Sep 1, 2018 | Resolved |
Full record since 1991
EPA's records for Enid go back to 1991. Before October 19, 2016 they list 6 health-based violations (6 resolved) and 10 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 5 | 3 |
| 2000s | 0 | 5 |
| 2010 to October 18, 2016 | 1 | 2 |
| October 19, 2016 to 2019 | 0 | 4 |
| 2020s | 1 | 8 |
Most recent health-based violation before October 19, 2016: Total Coliform, began May 2013, Resolved.
Show all 6 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2013 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 1996 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
May 1, 1993 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Mar 1, 1993 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1992 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 1991 | Resolved |
Enforcement actions
Oklahoma regulators took 1 formal enforcement action against Enid in 2006. The most recent was a compliance order with a penalty in April 2006.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Apr 11, 2006 | Oklahoma | Compliance order with a penalty | 4 violations: Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5) |
What the violations mean
LEAD AND COPPER RULE REVISIONS
1 incidentThe 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
Enid draws water from 114 wells (1 of them for emergency, seasonal or other part-time use). 8 other community water systems buy water from Enid. 3 other public water systems have emergency connections to Enid.
Community systems that buy water from it
- Chisholm Creek Housing Addition North Enid, OK
- Cleo Springs Cleo Springs, OK
- Drummond Drummond, OK
- Garber Municipal Authority Garber, OK
- Garfield Co RWD # 4 Enid, OK
- Garfield Co RWD #7 Enid, OK
- Salt Fork Water Authority Garber, OK
- Vance AFB Enid, OK
Annual water quality report
Enid 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