Public water system record

Osage Co RWD #21

Serves an area of Osage County and Kay County, OK that includes Shidler, Foraker, Grainola and 1 more place · 1,500 people served

Federal records show 2 health-based violations and 99 monitoring/reporting issues for Osage Co RWD #21 in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.

  • OK2003616
  • SHIDLER
  • OK
  • 1,500 served

System profile

Source water Groundwater under direct influence
ZIP 74652
EPA system ID OK2003616

Verify this system on EPA ECHO →

Health-based violations, last 10 years
2
Resolved
1
Unresolved
1
Any acute record
Yes
Monitoring issues, last 10 years
99

Key facts

  • Osage Co RWD #21 draws water from 4 wells.
  • Most recent formal enforcement: compliance order (no penalty) by EPA, March 2026.
  • Record on file since 1991, with 3 health-based violations before October 19, 2016.

Check whether Osage Co RWD #21 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
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
350 Oct 17, 2024 Active
Enforcement action in place
No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Apr 1, 2021 Resolved Yes

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Consumer Confidence Rule
OTHER
Jul 1, 2025 Active
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Chlorine
Monitoring and reporting
May 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
May 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Chlorine
Monitoring and reporting
Apr 1, 2025 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Mar 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Revised Total Coliform Rule
Monitoring violation
Feb 1, 2025 Resolved
Chlorine
Monitoring and reporting
Feb 1, 2025 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Feb 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Chlorine
Monitoring and reporting
Nov 1, 2024 Resolved
LEAD AND COPPER RULE REVISIONS
RPT
Oct 17, 2024 Active
Enforcement action in place
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Revised Total Coliform Rule
Monitoring violation
Sep 1, 2024 Resolved
Chlorine
Monitoring and reporting
Sep 1, 2024 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Revised Total Coliform Rule
Monitoring violation
Aug 1, 2024 Resolved
Chlorine
Monitoring and reporting
Aug 1, 2024 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Arsenic
Monitoring and reporting
Jul 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Revised Total Coliform Rule
Monitoring violation
May 1, 2024 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
May 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Chlorine
Monitoring and reporting
Apr 1, 2024 Resolved
Revised Total Coliform Rule
Monitoring violation
Apr 1, 2024 Resolved
Chlorine
Monitoring and reporting
Apr 1, 2024 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Mar 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Feb 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Haloacetic Acids (HAA5)
Monitoring and reporting
Jan 1, 2024 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Jan 1, 2024 Resolved
Revised Total Coliform Rule
Monitoring violation
Jan 1, 2024 Resolved
Chlorine
Monitoring and reporting
Jan 1, 2024 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Arsenic
Monitoring and reporting
Oct 1, 2023 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Arsenic
Monitoring and reporting
Jul 1, 2023 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
May 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Arsenic
Monitoring and reporting
Apr 1, 2023 Resolved
Chlorine
Monitoring and reporting
Apr 1, 2023 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Mar 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Feb 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Nitrate-Nitrite
Monitoring and reporting
Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Arsenic
Monitoring and reporting
Oct 1, 2022 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Haloacetic Acids (HAA5)
Monitoring and reporting
Aug 1, 2022 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Aug 1, 2022 Resolved
Chlorine
Monitoring and reporting
Jul 1, 2022 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2022 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
May 1, 2022 Resolved
Arsenic
Monitoring and reporting
Apr 1, 2022 Resolved
Chlorine
Monitoring and reporting
Apr 1, 2022 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2022 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2022 Resolved
Revised Total Coliform Rule
Monitoring violation
Dec 1, 2021 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2021 Resolved
Revised Total Coliform Rule
Monitoring violation
Nov 1, 2021 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2021 Resolved
Arsenic
Monitoring and reporting
Oct 1, 2021 Resolved
Chlorine
Monitoring and reporting
Oct 1, 2021 Resolved
Chlorine
Monitoring and reporting
Oct 1, 2021 Resolved
Revised Total Coliform Rule
Monitoring violation
Oct 1, 2021 Resolved
Chlorine
Monitoring and reporting
Oct 1, 2021 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2021 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2021 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2021 Resolved
Chlorine
Monitoring and reporting
Jul 1, 2021 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2021 Resolved
Public Notice
OTHER
Jun 28, 2021 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2021 Resolved
Revised Total Coliform Rule
Monitoring violation
May 1, 2021 Resolved
Chlorine
Monitoring and reporting
Apr 1, 2021 Resolved
Chlorine
Monitoring and reporting
Apr 1, 2021 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2021 Resolved
Chlorine
Monitoring and reporting
Apr 1, 2021 Resolved
Nitrate-Nitrite
Monitoring and reporting
Jan 1, 2021 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Aug 1, 2020 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Aug 1, 2020 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2020 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2019 Resolved
Glyphosate
Monitoring and reporting
Jul 1, 2019 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2019 Resolved

Full record since 1991

EPA's records for Osage Co RWD #21 go back to 1991. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 18 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 2 11
2000s 1 4
2010 to October 18, 2016 0 3
October 19, 2016 to 2019 0 3
2020s 2 96

Most recent health-based violation before October 19, 2016: Total Coliform (acute), began July 2000, Resolved.

Show all 3 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform (acute)
Contaminant limit exceeded
Jul 1, 2000 Resolved
Total Coliform
Contaminant limit exceeded
Oct 1, 1992 Resolved
Total Coliform
Contaminant limit exceeded
Sep 1, 1992 Resolved

Enforcement actions

Oklahoma regulators and EPA took 2 formal enforcement actions against Osage Co RWD #21 and issued 3 boil water orders between 2000 and 2026. The most recent was a compliance order (no penalty) in March 2026.

Date By Action Violations covered
Mar 10, 2026 EPA Compliance order (no penalty) 2 violations (1 health-based): LEAD AND COPPER RULE REVISIONS
Aug 16, 2024 Oklahoma Boil water order 1 violation
Feb 16, 2022 Oklahoma Compliance order (no penalty) 1 violation: Public Notice
Apr 14, 2021 Oklahoma Boil water order 1 violation (1 health-based): Interim Enhanced Surface Water Treatment Rule
Jul 28, 2000 Oklahoma Boil water order 1 violation (1 health-based): Total Coliform

What the violations mean

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.

Interim Enhanced Surface Water Treatment Rule

1 incident

The system did not meet a filtration or treatment requirement for surface water

Inadequate treatment of surface water can let pathogens such as Cryptosporidium and Giardia through

Where the water comes from

Osage Co RWD #21 draws water from 4 wells.

Annual water quality report

Osage Co RWD #21 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.