Public water system record

Choctaw Co. RWD #1

Serves an area of Choctaw County, OK that includes Grant · 2,300 people served

Federal records show 6 health-based violations and 29 monitoring/reporting issues for Choctaw Co. RWD #1 in the last ten years. The most serious issue in this window was a Combined Radium (-226 and -228) violation that EPA lists as archived, not resolved.

  • OK2001204
  • GRANT
  • OK
  • 2,300 served

System profile

Source water Groundwater
ZIP 74738
EPA system ID OK2001204

Verify this system on EPA ECHO →

Health-based violations, last 10 years
6
Resolved
1
Unresolved
0
Archived by EPA
5
Any acute record
No
Monitoring issues, last 10 years
29

Key facts

  • Choctaw Co. RWD #1 draws water from 4 wells.
  • Highest measured level in the last 10 years: Combined Radium (-226 and -228), 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit), 2025.
  • Most recent formal enforcement: compliance order (no penalty) by Oklahoma, October 2025.
  • Record on file since 1991, with 19 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 233 unknown out of 955 service lines.

Check whether Choctaw Co. RWD #1 serves your address

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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
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
340 Oct 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
340 Apr 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
340 Jan 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 Resolved No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
340 Apr 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
340 Oct 1, 2021 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
Gross Beta Particle Activity
Monitoring and reporting
Jan 1, 2025 Resolved
Combined Radium (-226 and -228)
Monitoring and reporting
Jan 1, 2025 Resolved
Combined Uranium
Monitoring and reporting
Jan 1, 2025 Resolved
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Jan 1, 2025 Resolved
Revised Total Coliform Rule
Monitoring violation
Nov 1, 2024 Resolved
Chlorine
Monitoring and reporting
Nov 1, 2024 Resolved
LEAD AND COPPER RULE REVISIONS
RPT
Oct 17, 2024 Resolved
Gross Beta Particle Activity
Monitoring and reporting
Oct 1, 2024 Resolved
Combined Radium (-226 and -228)
Monitoring and reporting
Oct 1, 2024 Resolved
Combined Uranium
Monitoring and reporting
Oct 1, 2024 Resolved
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Oct 1, 2024 Resolved
Gross Beta Particle Activity
Monitoring and reporting
Oct 1, 2017 Resolved
Combined Radium (-226 and -228)
Monitoring and reporting
Oct 1, 2017 Resolved
Combined Uranium
Monitoring and reporting
Oct 1, 2017 Resolved
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Oct 1, 2017 Resolved
Revised Total Coliform Rule
Monitoring violation
Mar 1, 2017 Resolved
Chlorine
Monitoring and reporting
Jan 1, 2017 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Dec 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Dec 1, 2016 Resolved
Gross Beta Particle Activity
Monitoring and reporting
Oct 1, 2016 Resolved
Combined Radium (-226 and -228)
Monitoring and reporting
Oct 1, 2016 Resolved
Combined Uranium
Monitoring and reporting
Oct 1, 2016 Resolved
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Oct 1, 2016 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Sep 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Sep 1, 2016 Resolved
BHC-GAMMA
Monitoring and reporting
Jan 1, 2014 Resolved
Glyphosate
Monitoring and reporting
Jan 1, 2014 Resolved
Simazine
Monitoring and reporting
Jan 1, 2014 Resolved
Dinoseb
Monitoring and reporting
Jan 1, 2014 Resolved

Full record since 1991

EPA's records for Choctaw Co. RWD #1 go back to 1991. Before October 19, 2016 they list 19 health-based violations (14 resolved, 5 archived by EPA without a recorded fix) and 24 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 2 3
2000s 4 1
2010 to October 18, 2016 13 20
October 19, 2016 to 2019 0 8
2020s 6 11

Most recent health-based violation before October 19, 2016: Combined Radium (-226 and -228), began July 2016, Archived.

Show all 19 health-based violations before October 19, 2016
Contaminant Start date Status
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
Jul 1, 2016 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
Oct 1, 2013 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
Jul 1, 2013 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
Apr 1, 2013 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
Apr 1, 2013 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
Jan 1, 2013 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
Oct 1, 2012 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
Jul 1, 2012 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
Apr 1, 2012 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
Jan 1, 2012 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
Oct 1, 2011 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
Jul 1, 2011 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
Apr 1, 2011 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
Oct 1, 2009 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
Oct 1, 2008 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
Oct 1, 2006 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
Oct 1, 2006 Archived
Total Coliform (acute)
Contaminant limit exceeded
Mar 1, 1998 Resolved
Total Coliform
Contaminant limit exceeded
May 1, 1993 Resolved

Enforcement actions

Oklahoma regulators took 8 formal enforcement actions against Choctaw Co. RWD #1 between 2009 and 2025. The most recent was a compliance order (no penalty) in October 2025.

Date By Action Violations covered
Oct 31, 2025 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Combined Radium (-226 and -228)
Jul 16, 2025 Oklahoma Compliance order (no penalty) 2 violations (2 health-based): Combined Radium (-226 and -228)
Aug 23, 2024 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Combined Radium (-226 and -228)
Jun 3, 2013 Oklahoma Compliance order with a penalty 18 violations (18 health-based): Combined Radium (-226 and -228)
Feb 4, 2013 Oklahoma Compliance order with a penalty 10 violations (10 health-based): Combined Radium (-226 and -228)
May 15, 2012 Oklahoma Compliance order with a penalty 3 violations (3 health-based): Combined Radium (-226 and -228)
Feb 12, 2010 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Combined Radium (-226 and -228)
Oct 29, 2009 Oklahoma Compliance order with a penalty 2 violations (2 health-based): Combined Radium (-226 and -228)

What the violations mean

Combined Radium (-226 and -228)

5 incidents

Test results for Combined Radium (-226 and -228) 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 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 #1 draws water from 4 wells. It also has an emergency connection to Hugo Municipal Authority. 1 other community water system buys water from Choctaw Co. RWD #1.

Emergency or part-time connections to

Community systems that buy water from it

Annual water quality report

Choctaw Co. RWD #1 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.