Public water system record
Dill City
Serves an area of Washita County, OK that includes Dill City · 526 people served
Federal records show 16 health-based violations and 6 monitoring/reporting issues for Dill City 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
- 16
- Resolved
- 10
- Unresolved
- 0
- Archived by EPA
- 6
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 6
Key facts
- Dill City draws water from 2 wells.
- Most recent formal enforcement: compliance order with a penalty by Oklahoma, June 2025.
- Record on file since 1983, with 9 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 219 unknown out of 219 service lines.
Check whether Dill City 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 | Oct 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 | Jul 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 | Oct 1, 2024 |
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 | Jul 1, 2024 |
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, 2024 |
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 | Oct 1, 2020 | Resolved | Yes |
|
Nitrate-Nitrite
Contaminant limit exceeded
|
330 | Jul 1, 2020 | Resolved | Yes |
|
Nitrate-Nitrite
Contaminant limit exceeded
|
330 | Apr 1, 2019 | Resolved | Yes |
|
Nitrate-Nitrite
Contaminant limit exceeded
|
330 | Apr 1, 2018 | Resolved | Yes |
|
Nitrate-Nitrite
Contaminant limit exceeded
|
330 | Oct 1, 2017 | Resolved | Yes |
|
Nitrate-Nitrite
Contaminant limit exceeded
|
330 | Jul 1, 2017 | Resolved | Yes |
|
Nitrate-Nitrite
Contaminant limit exceeded
|
330 | Apr 1, 2017 | Resolved | Yes |
|
Nitrate-Nitrite
Contaminant limit exceeded
|
330 | Jan 1, 2017 | Resolved | Yes |
|
Nitrate-Nitrite
Contaminant limit exceeded
|
330 | Oct 1, 2016 | 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
|
Apr 1, 2025 | Resolved |
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2016 | Resolved |
Full record since 1983
EPA's records for Dill City go back to 1983. Before October 19, 2016 they list 9 health-based violations (9 resolved) and 2 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 3 | 0 |
| 1990s | 2 | 1 |
| 2010 to October 18, 2016 | 4 | 1 |
| October 19, 2016 to 2019 | 6 | 0 |
| 2020s | 9 | 5 |
Most recent health-based violation before October 19, 2016: Nitrate-Nitrite (acute), began October 2016, Resolved.
Show all 9 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Nitrate-Nitrite (acute)
Contaminant limit exceeded
|
Oct 1, 2016 | Resolved |
|
Nitrate-Nitrite (acute)
Contaminant limit exceeded
|
Jul 1, 2016 | Resolved |
|
Nitrate-Nitrite (acute)
Contaminant limit exceeded
|
Apr 1, 2016 | Resolved |
|
Nitrate-Nitrite (acute)
Contaminant limit exceeded
|
Jul 1, 2015 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Jul 1, 1991 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1991 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jul 9, 1984 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jul 1, 1984 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Apr 19, 1983 | Resolved |
Enforcement actions
Oklahoma regulators took 17 formal enforcement actions against Dill City between 2015 and 2025. The most recent was a compliance order with a penalty in June 2025.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jun 4, 2025 | Oklahoma | Compliance order with a penalty | 6 violations (6 health-based): Nitrate-Nitrite |
| Feb 14, 2025 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate-Nitrite |
| Nov 12, 2024 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate-Nitrite |
| Aug 2, 2024 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate-Nitrite |
| May 22, 2024 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate-Nitrite |
| Dec 10, 2020 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate-Nitrite |
| Sep 24, 2020 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate-Nitrite |
| May 2, 2019 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate-Nitrite |
| May 23, 2018 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate-Nitrite |
| Dec 7, 2017 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Nitrate-Nitrite |
| Sep 14, 2017 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Nitrate-Nitrite |
| May 26, 2017 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Nitrate-Nitrite |
| Mar 30, 2017 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Nitrate-Nitrite |
| Dec 15, 2016 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Nitrate-Nitrite |
| Sep 19, 2016 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Nitrate-Nitrite |
| May 31, 2016 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Nitrate-Nitrite |
| Jul 13, 2015 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Nitrate-Nitrite |
What the violations mean
Nitrate-Nitrite
15 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
Dill City draws water from 2 wells.
Annual water quality report
Dill 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.
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