Public water system record
Guymon
Serves Guymon, Texas County, OK · 11,442 people served
Federal records show 1 health-based violation and 7 monitoring/reporting issues for Guymon in the last ten years. The most serious issue in this window was a resolved Nitrate-Nitrite violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 7
Key facts
- Guymon draws water from 18 wells.
- Most recent formal enforcement: compliance order (no penalty) by Oklahoma, March 2025.
- Record on file since 1979, with 9 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 3,636 unknown out of 4,686 service lines.
Check whether Guymon 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 |
|---|---|---|---|---|
|
Nitrate-Nitrite
Contaminant limit exceeded
|
330 | Jan 1, 2025 | Resolved | Yes |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Nitrate-Nitrite
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Nitrate-Nitrite
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Nitrate-Nitrite
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Nitrate-Nitrite
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Nitrate-Nitrite
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2019 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
Full record since 1979
EPA's records for Guymon go back to 1979. Before October 19, 2016 they list 9 health-based violations (7 resolved, 2 archived by EPA without a recorded fix) and 2 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 2 | 0 |
| 1980s | 2 | 0 |
| 1990s | 3 | 2 |
| 2000s | 2 | 0 |
| October 19, 2016 to 2019 | 0 | 2 |
| 2020s | 1 | 5 |
Most recent health-based violation before October 19, 2016: Total Coliform (acute), began September 2005, Resolved.
Show all 9 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform (acute)
Contaminant limit exceeded
|
Sep 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1994 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Apr 1, 1994 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1993 | Resolved |
|
Fluoride
Contaminant limit exceeded
|
Dec 1, 1981 | Archived |
|
Fluoride
Contaminant limit exceeded
|
Dec 1, 1981 | Resolved |
|
Fluoride
Contaminant limit exceeded
|
Apr 25, 1979 | Archived |
|
Fluoride
Contaminant limit exceeded
|
Apr 25, 1979 | Resolved |
Enforcement actions
Oklahoma regulators took 1 formal enforcement action against Guymon and issued 1 boil water order between 2005 and 2025. The most recent was a compliance order (no penalty) in March 2025.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Mar 12, 2025 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate-Nitrite |
| Sep 15, 2005 | Oklahoma | Boil water order | 1 violation (1 health-based): Total Coliform |
What the violations mean
Nitrate-Nitrite
1 incidentTest results for Nitrate-Nitrite were above the federal limit (a maximum contaminant level violation).
The utility had to notify customers about this violation.
Where the water comes from
Guymon draws water from 18 wells.
Annual water quality report
Guymon 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