Public water system record
Corn PWA
Serves an area of Washita County, OK · 500 people served
Federal records show 1 health-based violation and 8 monitoring/reporting issues for Corn PWA 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
- 8
Key facts
- Corn PWA draws water from 2 wells.
- Most recent formal enforcement: compliance order with a penalty by Oklahoma, July 2016.
- Record on file since 1991, with 13 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 117 unknown out of 256 service lines.
Check whether Corn PWA 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 |
|---|---|---|
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 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 |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jan 1, 2021 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Public Notice
OTHER
|
Aug 18, 2016 | Resolved |
Full record since 1991
EPA's records for Corn PWA go back to 1991. Before October 19, 2016 they list 13 health-based violations (13 resolved) and 33 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 17 |
| 2000s | 7 | 11 |
| 2010 to October 18, 2016 | 6 | 5 |
| 2020s | 1 | 7 |
Most recent health-based violation before October 19, 2016: Arsenic, began April 2016, Resolved.
Show all 13 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Apr 1, 2016 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Jan 1, 2016 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Oct 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jul 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Oct 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jan 1, 2010 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Oct 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jul 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Apr 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jul 1, 2007 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Apr 1, 2007 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jan 1, 2007 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Oct 1, 2006 | Resolved |
Enforcement actions
Oklahoma regulators took 12 formal enforcement actions against Corn PWA between 2004 and 2016. The most recent was a compliance order with a penalty in July 2016.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jul 18, 2016 | Oklahoma | Compliance order with a penalty | 2 violations (2 health-based): Arsenic |
| Mar 14, 2016 | Oklahoma | Compliance order with a penalty | 2 violations (2 health-based): Arsenic |
| Dec 6, 2012 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Arsenic |
| May 5, 2010 | Oklahoma | Compliance order with a penalty | 10 violations (8 health-based): Arsenic |
| Mar 19, 2010 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Arsenic |
| Feb 3, 2010 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Arsenic |
| Aug 19, 2009 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Arsenic |
| Jul 28, 2009 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Arsenic |
| Aug 12, 2008 | Oklahoma | Compliance order with a penalty | 4 violations (4 health-based): Arsenic |
| Feb 22, 2008 | Oklahoma | Compliance order with a penalty | 2 violations: Arsenic |
| Jul 18, 2005 | Oklahoma | Compliance order with a penalty | 2 violations: Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5) |
| Oct 8, 2004 | Oklahoma | Compliance order with a penalty | 1 violation: Lead and Copper Rule |
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
Corn PWA draws water from 2 wells.
Annual water quality report
Corn PWA 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 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Corn PWA for a copy.
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