Public water system record
Wynnewood Water & Light
Serves an area of Garvin County and Murray County, OK · 2,307 people served
Federal records show 3 health-based violations and 4 monitoring/reporting issues for Wynnewood Water & Light in the last ten years. The most serious issue in this window was a resolved LEAD AND COPPER RULE REVISIONS violation.
System profile
Source water
Surface water
ZIP
73098
EPA system ID
OK1010812
- Health-based violations, last 10 years
- 3
- Resolved
- 3
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 4
Key facts
- Wynnewood Water & Light draws water from 1 surface water intake.
- Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.104 mg/L, federal limit 0.08 mg/L (1.3 times the limit), 2016.
- Most recent formal enforcement: compliance order with a penalty by Oklahoma, October 2016.
- Record on file since 1999, with 47 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 1,007 unknown out of 1,023 service lines.
Check whether Wynnewood Water & Light 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 |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.088 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Jan 1, 2017 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.104 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
|
220 | Oct 1, 2016 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2025 | Active |
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2024 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2024 | Resolved |
Full record since 1999
EPA's records for Wynnewood Water & Light go back to 1999. Before October 19, 2016 they list 47 health-based violations (46 resolved, 1 archived by EPA without a recorded fix) and 37 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 1 |
| 2000s | 24 | 25 |
| 2010 to October 18, 2016 | 22 | 11 |
| October 19, 2016 to 2019 | 1 | 0 |
| 2020s | 1 | 4 |
Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began October 2016, Resolved.
Show all 47 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.104 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
|
Oct 1, 2016 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jul 1, 2016 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.064 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
Jul 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.094 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
Jul 1, 2016 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Apr 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.124 mg/L, federal limit 0.08 mg/L (1.6 times the limit)
|
Apr 1, 2016 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.062 mg/L, federal limit 0.06 mg/L (at or just above the limit)
|
Apr 1, 2016 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jan 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.121 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
|
Jan 1, 2016 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.084 mg/L, federal limit 0.06 mg/L (1.4 times the limit)
|
Jan 1, 2016 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Oct 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.119 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
|
Oct 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.101 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
|
Jul 1, 2015 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Jul 1, 2015 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Jun 1, 2015 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Jun 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.089 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Apr 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
Oct 1, 2014 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
Jul 1, 2014 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Aug 1, 2012 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Aug 1, 2012 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Jan 1, 2010 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Sep 1, 2009 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Aug 1, 2009 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Aug 1, 2009 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Jul 1, 2009 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Jul 1, 2009 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Jun 1, 2009 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2008 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Mar 1, 2008 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jan 1, 2008 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.106 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
|
Jan 1, 2008 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.063 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
Jan 1, 2008 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Oct 1, 2007 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.101 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
|
Oct 1, 2007 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.099 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
Jul 1, 2007 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jul 1, 2007 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.093 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
Apr 1, 2007 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
Jan 1, 2006 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Oct 1, 2005 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Jul 1, 2005 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Apr 1, 2005 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Jan 1, 2005 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Oct 1, 2004 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Oct 1, 2003 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Sep 1, 2003 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jul 1, 1999 | Archived |
Enforcement actions
Oklahoma regulators took 25 formal enforcement actions against Wynnewood Water & Light between 2003 and 2016. The most recent was a compliance order with a penalty in October 2016.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Oct 25, 2016 | Oklahoma | Compliance order with a penalty | 17 violations (17 health-based): Total Trihalomethanes (TTHMs), CARBON, TOTAL, Haloacetic Acids (HAA5) |
| Mar 17, 2016 | Oklahoma | Compliance order with a penalty | 2 violations (2 health-based): CARBON, TOTAL, Total Trihalomethanes (TTHMs) |
| Dec 11, 2015 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Sep 23, 2015 | Oklahoma | Compliance order with a penalty | 2 violations (1 health-based): Interim Enhanced Surface Water Treatment Rule, Surface Water Treatment Rule |
| Sep 16, 2015 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Aug 20, 2015 | Oklahoma | Compliance order with a penalty | 3 violations (2 health-based): Interim Enhanced Surface Water Treatment Rule, Surface Water Treatment Rule |
| Mar 23, 2015 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Dec 5, 2014 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Oct 1, 2012 | Oklahoma | Compliance order with a penalty | 2 violations (2 health-based): Interim Enhanced Surface Water Treatment Rule |
| Mar 1, 2010 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Interim Enhanced Surface Water Treatment Rule |
| Nov 3, 2009 | Oklahoma | Compliance order with a penalty | 3 violations (3 health-based): Interim Enhanced Surface Water Treatment Rule |
| Jun 16, 2009 | Oklahoma | Compliance order with a penalty | 3 violations (3 health-based): Interim Enhanced Surface Water Treatment Rule |
| Aug 22, 2008 | Oklahoma | Compliance order with a penalty | 3 violations (3 health-based): Haloacetic Acids (HAA5), CARBON, TOTAL, Total Trihalomethanes (TTHMs) |
| Jun 19, 2008 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Interim Enhanced Surface Water Treatment Rule |
| Mar 25, 2008 | Oklahoma | Compliance order with a penalty | 2 violations (2 health-based): Total Trihalomethanes (TTHMs), CARBON, TOTAL |
| Dec 31, 2007 | Oklahoma | Compliance order with a penalty | 2 violations (2 health-based): Total Trihalomethanes (TTHMs), CARBON, TOTAL |
| Sep 20, 2007 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Jul 26, 2007 | Oklahoma | Compliance order with a penalty | 1 violation: Nitrate-Nitrite |
| Aug 8, 2006 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Apr 12, 2006 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Jan 10, 2006 | Oklahoma | Compliance order with a penalty | 11 violations: Chlorine |
| Jan 3, 2006 | Oklahoma | Compliance order with a penalty | 2 violations (2 health-based): Total Trihalomethanes (TTHMs) |
| Sep 20, 2005 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Apr 19, 2005 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Nov 17, 2003 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Surface Water Treatment Rule |
What the violations mean
Total Trihalomethanes (TTHMs)
2 incidentsDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
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
Wynnewood Water & Light draws water from 1 surface water intake. 1 other community water system buys water from Wynnewood Water & Light.
Community systems that buy water from it
- Garvin Co RWD #6 (SW Purchase) Wynnewood, OK
Annual water quality report
Wynnewood Water & Light 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