Public water system record
Watonga
Serves an area of Blaine County, OK · 2,816 people served
Federal records show 8 health-based violations and 7 monitoring/reporting issues for Watonga in the last ten years. The most serious issue in this window was a Nitrate-Nitrite violation that EPA lists as archived, not resolved.
System profile
- Health-based violations, last 10 years
- 8
- Resolved
- 5
- Unresolved
- 0
- Archived by EPA
- 3
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 7
Key facts
- Watonga draws water from 11 wells (1 of them for emergency, seasonal or other part-time use).
- Most recent formal enforcement: compliance order with a penalty by Oklahoma, March 2023.
- Record on file since 1991, with 19 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 1,737 service lines.
Check whether Watonga 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 | Apr 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
Yes |
|
Nitrate-Nitrite
Contaminant limit exceeded
|
330 | Apr 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
Yes |
|
Nitrate-Nitrite
Contaminant limit exceeded
|
330 | Jan 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
Yes |
|
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
|
350 | Oct 17, 2024 | Resolved | No |
|
Nitrate-Nitrite
Contaminant limit exceeded
|
330 | Jan 1, 2019 | Resolved | Yes |
|
Nitrate-Nitrite
Contaminant limit exceeded
|
330 | Apr 1, 2018 | Resolved | Yes |
|
Nitrate-Nitrite
Contaminant limit exceeded
|
330 | Jan 1, 2018 | Resolved | Yes |
|
Nitrate-Nitrite
Contaminant limit exceeded
|
330 | Oct 1, 2017 | 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
|
Jul 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 2, 2023 | Resolved |
|
Nitrate-Nitrite
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
E. coli
Monitoring and reporting
|
Oct 28, 2021 | Resolved |
|
Nitrate-Nitrite
Monitoring and reporting
|
Apr 1, 2021 | Resolved |
|
Nitrate-Nitrite
Monitoring and reporting
|
Apr 1, 2021 | Resolved |
Full record since 1991
EPA's records for Watonga go back to 1991. Before October 19, 2016 they list 19 health-based violations (14 resolved, 5 archived by EPA without a recorded fix) and 3 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 16 | 1 |
| 2000s | 2 | 0 |
| 2010 to October 18, 2016 | 1 | 2 |
| October 19, 2016 to 2019 | 4 | 0 |
| 2020s | 4 | 7 |
Most recent health-based violation before October 19, 2016: Nitrate-Nitrite (acute), began April 2012, Resolved.
Show all 19 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Nitrate-Nitrite (acute)
Contaminant limit exceeded
|
Apr 1, 2012 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1996 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jan 1, 1996 | Archived |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jan 1, 1996 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1995 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Apr 1, 1994 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Apr 1, 1994 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jan 1, 1994 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Oct 27, 1993 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jul 28, 1993 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jul 28, 1993 | Archived |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jul 28, 1993 | Archived |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jul 28, 1993 | Archived |
|
Nitrate (acute)
Contaminant limit exceeded
|
Apr 28, 1993 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jan 1, 1993 | Archived |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jan 1, 1993 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 1991 | Resolved |
Enforcement actions
Oklahoma regulators took 11 formal enforcement actions against Watonga and issued 1 boil water order between 1993 and 2023. The most recent was a compliance order with a penalty in March 2023.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Mar 2, 2023 | Oklahoma | Compliance order with a penalty | 15 violations (15 health-based): Nitrate-Nitrite, Nitrate |
| Apr 15, 2021 | Oklahoma | Compliance order with a penalty | 12 violations (12 health-based): Nitrate-Nitrite, Nitrate |
| Aug 6, 2018 | Oklahoma | Compliance order with a penalty | 12 violations (12 health-based): Nitrate-Nitrite, Nitrate |
| Jun 1, 2018 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate-Nitrite |
| Mar 27, 2018 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate-Nitrite |
| Nov 17, 2017 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Nitrate-Nitrite |
| May 23, 2012 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Nitrate-Nitrite |
| Oct 19, 1995 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
| Nov 3, 1994 | Oklahoma | Boil water order | 1 violation |
| Jul 1, 1994 | Oklahoma | Compliance order (no penalty) | 2 violations (2 health-based): Nitrate |
| May 2, 1994 | Oklahoma | Compliance order (no penalty) | 2 violations (2 health-based): Nitrate |
| Jun 1, 1993 | Oklahoma | Compliance order (no penalty) | 2 violations (2 health-based): Nitrate |
What the violations mean
Nitrate-Nitrite
7 incidentsTest results for Nitrate-Nitrite were above the federal limit (a maximum contaminant level violation).
The utility had to notify customers about each of these violations.
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
Watonga draws water from 11 wells (1 of them for emergency, seasonal or other part-time use). 1 smaller public system such as schools, businesses or campgrounds buys water from Watonga.
Annual water quality report
Watonga 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.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
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