Public water system record

Choctaw Co. RWD #2

Serves an area of Choctaw County and McCurtain County, OK that includes Valliant and Swink · 373 people served

Federal records show 20 health-based violations and 7 monitoring/reporting issues for Choctaw Co. RWD #2 in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.

OK3001203
SWINK
OK
373 served

System profile

Source water Purchased surface water

ZIP 74761

EPA system ID OK3001203

Verify this system on EPA ECHO →

Health-based violations, last 10 years: 20
Resolved: 0
Unresolved: 1
Archived by EPA: 19
Any acute record: No
Monitoring issues, last 10 years: 7

Key facts

Choctaw Co. RWD #2 buys its water from Valliant PWA.
Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.146 mg/L, federal limit 0.08 mg/L (1.8 times the limit), 2020.
Most recent formal enforcement: compliance order with a penalty by Oklahoma, November 2016.
Record on file since 1993, with 13 health-based violations before October 19, 2016.

Check whether Choctaw Co. RWD #2 serves your address

Health-based violations

Since October 2016

Violation 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	Active	No
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.089 mg/L, federal limit 0.08 mg/L (1.1 times the limit)	220	Jul 1, 2022	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.093 mg/L, federal limit 0.08 mg/L (1.2 times the limit)	220	Apr 1, 2022	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.096 mg/L, federal limit 0.08 mg/L (1.2 times the limit)	220	Jan 1, 2022	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.095 mg/L, federal limit 0.08 mg/L (1.2 times the limit)	220	Oct 1, 2021	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.095 mg/L, federal limit 0.08 mg/L (1.2 times the limit)	220	Jul 1, 2021	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Haloacetic Acids (HAA5) Contaminant limit exceeded Measured 0.064 mg/L, federal limit 0.06 mg/L (1.1 times the limit)	220	Jul 1, 2021	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.112 mg/L, federal limit 0.08 mg/L (1.4 times the limit)	220	Apr 1, 2021	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Haloacetic Acids (HAA5) Contaminant limit exceeded Measured 0.073 mg/L, federal limit 0.06 mg/L (1.2 times the limit)	220	Apr 1, 2021	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.116 mg/L, federal limit 0.08 mg/L (1.5 times the limit)	220	Jan 1, 2021	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Haloacetic Acids (HAA5) Contaminant limit exceeded Measured 0.079 mg/L, federal limit 0.06 mg/L (1.3 times the limit)	220	Jan 1, 2021	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.119 mg/L, federal limit 0.08 mg/L (1.5 times the limit)	220	Oct 1, 2020	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Haloacetic Acids (HAA5) Contaminant limit exceeded Measured 0.085 mg/L, federal limit 0.06 mg/L (1.4 times the limit)	220	Oct 1, 2020	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.146 mg/L, federal limit 0.08 mg/L (1.8 times the limit)	220	Jul 1, 2020	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Haloacetic Acids (HAA5) Contaminant limit exceeded Measured 0.079 mg/L, federal limit 0.06 mg/L (1.3 times the limit)	220	Jul 1, 2020	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.121 mg/L, federal limit 0.08 mg/L (1.5 times the limit)	220	Apr 1, 2020	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Haloacetic Acids (HAA5) Contaminant limit exceeded Measured 0.061 mg/L, federal limit 0.06 mg/L (at or just above the limit)	220	Apr 1, 2020	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Haloacetic Acids (HAA5) Contaminant limit exceeded Measured 0.071 mg/L, federal limit 0.06 mg/L (1.2 times the limit)	220	Apr 1, 2020	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.103 mg/L, federal limit 0.08 mg/L (1.3 times the limit)	220	Jan 1, 2020	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.086 mg/L, federal limit 0.08 mg/L (1.1 times the limit)	220	Oct 1, 2019	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue	Start date	Status
LEAD AND COPPER RULE REVISIONS RPT	Oct 17, 2024	Active
Haloacetic Acids (HAA5) Monitoring and reporting	Apr 1, 2021	Resolved
Total Trihalomethanes (TTHMs) Monitoring and reporting	Apr 1, 2021	Resolved
Haloacetic Acids (HAA5) Monitoring and reporting	Dec 30, 2020	Resolved
Total Trihalomethanes (TTHMs) Monitoring and reporting	Dec 30, 2020	Resolved
Haloacetic Acids (HAA5) Monitoring and reporting	Sep 29, 2020	Resolved
Total Trihalomethanes (TTHMs) Monitoring and reporting	Sep 29, 2020	Resolved

Full record since 1993

EPA's records for Choctaw Co. RWD #2 go back to 1993. Before October 19, 2016 they list 13 health-based violations (6 resolved, 7 archived by EPA without a recorded fix) and 19 monitoring or reporting violations.

Violations that began in	Health-based	Monitoring and reporting
1990s	0	5
2000s	2	6
2010 to October 18, 2016	11	8
October 19, 2016 to 2019	1	0
2020s	19	7

Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began July 2016, Resolved.

Show all 13 health-based violations before October 19, 2016

Contaminant	Start date	Status
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.089 mg/L, federal limit 0.08 mg/L (1.1 times the limit)	Jul 1, 2016	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.103 mg/L, federal limit 0.08 mg/L (1.3 times the limit)	Apr 1, 2016	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.098 mg/L, federal limit 0.08 mg/L (1.2 times the limit)	Jan 1, 2016	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.097 mg/L, federal limit 0.08 mg/L (1.2 times the limit)	Oct 1, 2015	Archived
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.088 mg/L, federal limit 0.08 mg/L (1.1 times the limit)	Jul 1, 2015	Archived
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.088 mg/L, federal limit 0.08 mg/L (1.1 times the limit)	Oct 1, 2014	Archived
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.093 mg/L, federal limit 0.08 mg/L (1.2 times the limit)	Jul 1, 2014	Archived
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.103 mg/L, federal limit 0.08 mg/L (1.3 times the limit)	Apr 1, 2014	Archived
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.103 mg/L, federal limit 0.08 mg/L (1.3 times the limit)	Jan 1, 2014	Archived
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.093 mg/L, federal limit 0.08 mg/L (1.2 times the limit)	Oct 1, 2013	Archived
Total Coliform Contaminant limit exceeded	Dec 1, 2012	Resolved
Total Coliform Contaminant limit exceeded	Feb 1, 2009	Resolved
Total Coliform Contaminant limit exceeded	Oct 1, 2007	Resolved

Enforcement actions

Oklahoma regulators took 9 formal enforcement actions against Choctaw Co. RWD #2 and issued 1 boil water order between 1994 and 2016. The most recent was a compliance order with a penalty in November 2016.

Date	By	Action	Violations covered
Nov 15, 2016	Oklahoma	Compliance order with a penalty	29 violations (29 health-based): Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5)
Jan 28, 2016	Oklahoma	Compliance order with a penalty	1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Oct 20, 2015	Oklahoma	Compliance order with a penalty	1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Jan 30, 2015	Oklahoma	Compliance order with a penalty	1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Oct 3, 2014	Oklahoma	Compliance order with a penalty	1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Aug 15, 2014	Oklahoma	Compliance order with a penalty	1 violation (1 health-based): Total Trihalomethanes (TTHMs)
May 7, 2014	Oklahoma	Compliance order with a penalty	2 violations (2 health-based): Total Trihalomethanes (TTHMs)
Jul 30, 2001	Oklahoma	Compliance order with a penalty	4 violations: Lead and Copper Rule
Feb 17, 1998	Oklahoma	Compliance order with a penalty	1 violation: Lead and Copper Rule
Oct 4, 1994	Oklahoma	Boil water order	1 violation: Lead and Copper Rule

What the violations mean

Total Trihalomethanes (TTHMs)

12 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Haloacetic Acids (HAA5)

7 incidents

Haloacetic acid byproducts exceeded the federal limit

Long-term exposure to HAAs may increase cancer risk

LEAD AND COPPER RULE REVISIONS

1 incident

The 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

Choctaw Co. RWD #2 buys its water from Valliant PWA. It lists no wells or intakes of its own.

Buys water from

Valliant PWA Valliant, OK

Annual water quality report

Choctaw Co. RWD #2 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 Choctaw Co. RWD #2 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