Public water system record

McCurtain Municipal Authority

Serves an area of Haskell County, OK · 560 people served

Federal records show 58 health-based violations and 23 monitoring/reporting issues for McCurtain Municipal Authority in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.

OK3003101
MCCURTAIN
OK
560 served

System profile

Source water Purchased surface water

ZIP 74944

EPA system ID OK3003101

Verify this system on EPA ECHO →

Health-based violations, last 10 years: 58
Resolved: 0
Unresolved: 1
Archived by EPA: 57
Any acute record: No
Monitoring issues, last 10 years: 23

Key facts

McCurtain Municipal Authority buys its water from Poteau Valley Improvement Authority.
Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.13 mg/L, federal limit 0.08 mg/L (1.6 times the limit), 2018.
Most recent formal enforcement: compliance order (no penalty) by EPA, March 2026.
Record on file since 2003, with 12 health-based violations before October 19, 2016.

Check whether McCurtain Municipal Authority 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
Haloacetic Acids (HAA5) Contaminant limit exceeded Measured 0.062 mg/L, federal limit 0.06 mg/L (at or just above the limit)	220	Oct 1, 2025	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 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)	220	Jul 1, 2025	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 0.065 mg/L, federal limit 0.06 mg/L (1.1 times the limit)	220	Jul 1, 2025	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 0.063 mg/L, federal limit 0.06 mg/L (1.1 times the limit)	220	Apr 1, 2025	Archived Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.	No
LEAD AND COPPER RULE REVISIONS Treatment technique failure	350	Oct 17, 2024	Active Enforcement action in place	No
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.085 mg/L, federal limit 0.08 mg/L (1.1 times the limit)	220	Jul 1, 2024	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 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)	220	Apr 1, 2024	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 0.092 mg/L, federal limit 0.08 mg/L (1.2 times the limit)	220	Jan 1, 2024	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	Oct 1, 2023	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 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)	220	Jul 1, 2023	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 0.108 mg/L, federal limit 0.08 mg/L (1.4 times the limit)	220	Jul 1, 2023	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 0.098 mg/L, federal limit 0.08 mg/L (1.2 times the limit)	220	Apr 1, 2023	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 0.113 mg/L, federal limit 0.08 mg/L (1.4 times the limit)	220	Apr 1, 2023	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	Jan 1, 2023	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, 2023	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	Oct 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 0.105 mg/L, federal limit 0.08 mg/L (1.3 times the limit)	220	Oct 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 0.098 mg/L, federal limit 0.08 mg/L (1.2 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 0.1 mg/L, federal limit 0.08 mg/L (1.3 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 0.101 mg/L, federal limit 0.08 mg/L (1.3 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 0.092 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 0.086 mg/L, federal limit 0.08 mg/L (1.1 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 0.093 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 0.1 mg/L, federal limit 0.08 mg/L (1.3 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 0.085 mg/L, federal limit 0.08 mg/L (1.1 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 0.102 mg/L, federal limit 0.08 mg/L (1.3 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 0.082 mg/L, federal limit 0.08 mg/L (at or just above 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 0.09 mg/L, federal limit 0.08 mg/L (1.1 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 0.099 mg/L, federal limit 0.08 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 0.115 mg/L, federal limit 0.08 mg/L (1.4 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 0.097 mg/L, federal limit 0.08 mg/L (1.2 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 0.103 mg/L, federal limit 0.08 mg/L (1.3 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 0.112 mg/L, federal limit 0.08 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 0.107 mg/L, federal limit 0.08 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 0.104 mg/L, federal limit 0.08 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 0.101 mg/L, federal limit 0.08 mg/L (1.3 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 0.112 mg/L, federal limit 0.08 mg/L (1.4 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 0.091 mg/L, federal limit 0.08 mg/L (1.1 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 0.102 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 0.091 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
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.108 mg/L, federal limit 0.08 mg/L (1.4 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
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.108 mg/L, federal limit 0.08 mg/L (1.4 times the limit)	220	Jul 1, 2019	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 0.098 mg/L, federal limit 0.08 mg/L (1.2 times the limit)	220	Jul 1, 2019	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	Apr 1, 2019	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	Apr 1, 2019	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 0.113 mg/L, federal limit 0.08 mg/L (1.4 times the limit)	220	Jan 1, 2019	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 0.11 mg/L, federal limit 0.08 mg/L (1.4 times the limit)	220	Jan 1, 2019	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 0.107 mg/L, federal limit 0.08 mg/L (1.3 times the limit)	220	Oct 1, 2018	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 0.111 mg/L, federal limit 0.08 mg/L (1.4 times the limit)	220	Oct 1, 2018	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 0.117 mg/L, federal limit 0.08 mg/L (1.5 times the limit)	220	Jul 1, 2018	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 0.1 mg/L, federal limit 0.08 mg/L (1.3 times the limit)	220	Jul 1, 2018	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 0.13 mg/L, federal limit 0.08 mg/L (1.6 times the limit)	220	Apr 1, 2018	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 0.097 mg/L, federal limit 0.08 mg/L (1.2 times the limit)	220	Jan 1, 2018	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, 2017	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 0.097 mg/L, federal limit 0.08 mg/L (1.2 times the limit)	220	Jul 1, 2017	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 0.118 mg/L, federal limit 0.08 mg/L (1.5 times the limit)	220	Apr 1, 2017	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 0.12 mg/L, federal limit 0.08 mg/L (1.5 times the limit)	220	Jan 1, 2017	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 0.092 mg/L, federal limit 0.08 mg/L (1.2 times the limit)	220	Oct 1, 2016	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 Enforcement action in place
Lead and Copper Rule Monitoring and reporting	Jul 1, 2023	Resolved
Total Trihalomethanes (TTHMs) Monitoring and reporting	Apr 1, 2023	Resolved
Lead and Copper Rule Monitoring and reporting	Jan 1, 2023	Resolved
Total Trihalomethanes (TTHMs) Monitoring and reporting	Jun 30, 2022	Resolved
Total Trihalomethanes (TTHMs) Monitoring and reporting	Jun 30, 2021	Resolved
Total Trihalomethanes (TTHMs) Monitoring and reporting	Sep 29, 2019	Resolved
Total Trihalomethanes (TTHMs) Monitoring and reporting	Jun 30, 2019	Resolved
Total Trihalomethanes (TTHMs) Monitoring and reporting	Sep 29, 2018	Resolved
Total Trihalomethanes (TTHMs) Monitoring and reporting	Dec 30, 2017	Resolved
Total Trihalomethanes (TTHMs) Monitoring and reporting	Sep 29, 2017	Resolved
Consumer Confidence Rule OTHER	Jul 1, 2017	Resolved
Total Trihalomethanes (TTHMs) Monitoring and reporting	Jun 30, 2017	Resolved
Consumer Confidence Rule OTHER	Jul 1, 2016	Resolved
Total Trihalomethanes (TTHMs) Monitoring and reporting	Jun 30, 2016	Resolved
Total Trihalomethanes (TTHMs) Monitoring and reporting	Mar 31, 2016	Resolved
Lead and Copper Rule Monitoring and reporting	Jan 1, 2016	Resolved
Haloacetic Acids (HAA5) Monitoring and reporting	Dec 30, 2015	Resolved
Total Trihalomethanes (TTHMs) Monitoring and reporting	Dec 30, 2015	Resolved
Total Trihalomethanes (TTHMs) Monitoring and reporting	Sep 29, 2015	Resolved
Lead and Copper Rule Monitoring and reporting	Jul 1, 2015	Resolved
Lead and Copper Rule Monitoring and reporting	Jan 1, 2015	Resolved
Lead and Copper Rule Monitoring and reporting	Jul 1, 2014	Resolved

Full record since 2003

EPA's records for McCurtain Municipal Authority go back to 2003. Before October 19, 2016 they list 12 health-based violations (2 resolved, 10 archived by EPA without a recorded fix) and 34 monitoring or reporting violations.

Violations that began in	Health-based	Monitoring and reporting
2000s	1	16
2010 to October 18, 2016	11	18
October 19, 2016 to 2019	18	7
2020s	39	6

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

Show all 12 health-based violations before October 19, 2016

Contaminant	Start date	Status
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.092 mg/L, federal limit 0.08 mg/L (1.2 times the limit)	Oct 1, 2016	Archived
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	Archived
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.141 mg/L, federal limit 0.08 mg/L (1.8 times the limit)	Apr 1, 2016	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, 2016	Archived
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.139 mg/L, federal limit 0.08 mg/L (1.7 times the limit)	Oct 1, 2015	Archived
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.098 mg/L, federal limit 0.08 mg/L (1.2 times the limit)	Jul 1, 2015	Archived
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.106 mg/L, federal limit 0.08 mg/L (1.3 times the limit)	Apr 1, 2015	Archived
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.117 mg/L, federal limit 0.08 mg/L (1.5 times the limit)	Jan 1, 2015	Archived
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.101 mg/L, federal limit 0.08 mg/L (1.3 times the limit)	Oct 1, 2014	Archived
Total Coliform Contaminant limit exceeded	Sep 1, 2014	Resolved
Total Trihalomethanes (TTHMs) Contaminant limit exceeded Measured 0.108 mg/L, federal limit 0.08 mg/L (1.4 times the limit)	Jul 1, 2014	Archived
Total Coliform Contaminant limit exceeded	May 1, 2004	Resolved

Enforcement actions

Oklahoma regulators and EPA took 11 formal enforcement actions against McCurtain Municipal Authority between 2014 and 2026. The most recent was a compliance order (no penalty) in March 2026.

Date	By	Action	Violations covered
Mar 19, 2026	EPA	Compliance order (no penalty)	2 violations (1 health-based): LEAD AND COPPER RULE REVISIONS
Jul 12, 2024	Oklahoma	Compliance order with a penalty	66 violations (66 health-based): Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5)
May 31, 2023	Oklahoma	Compliance order (no penalty)	24 violations (24 health-based): Total Trihalomethanes (TTHMs)
Dec 30, 2016	Oklahoma	Compliance order with a penalty	63 violations (58 health-based): Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5)
Apr 28, 2016	Oklahoma	Compliance order with a penalty	4 violations: Lead and Copper Rule
Mar 21, 2016	Oklahoma	Compliance order with a penalty	1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Oct 27, 2015	Oklahoma	Compliance order with a penalty	1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Sep 3, 2015	Oklahoma	Compliance order with a penalty	1 violation (1 health-based): Total Trihalomethanes (TTHMs)
May 1, 2015	Oklahoma	Compliance order with a penalty	1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Feb 11, 2015	Oklahoma	Compliance order with a penalty	1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Oct 14, 2014	Oklahoma	Compliance order with a penalty	1 violation (1 health-based): Total Trihalomethanes (TTHMs)

What the violations mean

Total Trihalomethanes (TTHMs)

54 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Haloacetic Acids (HAA5)

3 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

McCurtain Municipal Authority buys its water from Poteau Valley Improvement Authority. It lists no wells or intakes of its own.

Buys water from

Poteau Valley Improvement Authority Wister, OK

Annual water quality report

McCurtain Municipal Authority 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