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Public water system record

Guthrie

Serves Guthrie and Cedar Valley, Logan County, OK · 9,925 people served

Federal records show 3 health-based violations and 5 monitoring/reporting issues for Guthrie in the last ten years. The most serious issue in this window was a resolved Chlorite violation.

  • OK1020903
  • GUTHRIE
  • OK
  • 9,925 served

System profile

Source water Surface water
ZIP 73044
EPA system ID OK1020903

Verify this system on EPA ECHO →

Health-based violations, last 10 years
3
Resolved
3
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
5

Key facts

  • Guthrie draws water from 3 surface water intakes.
  • Highest measured level in the last 10 years: Chlorite, 1.2 mg/L, federal limit 1 mg/L (1.2 times the limit), 2021.
  • Most recent formal enforcement: compliance order (no penalty) by Oklahoma, January 2022.
  • Record on file since 1984, with 13 health-based violations before October 20, 2016.
  • Lead pipe inventory: 0 lead and 3,651 unknown out of 3,701 service lines.

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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
Chlorite
Contaminant limit exceeded
Measured 1.2 mg/L, federal limit 1 mg/L (1.2 times the limit)
 210 Jul 1, 2021 Resolved No
CARBON, TOTAL
Treatment technique failure
 210 Apr 1, 2021 Resolved No
CARBON, TOTAL
Treatment technique failure
 210 Jan 1, 2021 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Chlorite
Monitoring and reporting
 Jul 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Haloacetic Acids (HAA5)
Monitoring and reporting
 Jul 1, 2025 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Jul 1, 2025 Resolved
Chlorine dioxide
Monitoring and reporting
 Feb 1, 2025 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
 Feb 1, 2025 Resolved

Full record since 1984

EPA's records for Guthrie go back to 1984. Before October 20, 2016 they list 13 health-based violations (11 resolved, 2 archived by EPA without a recorded fix) and 2 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 2 0
1990s 4 0
2000s 7 2
2020s 3 5

Most recent health-based violation before October 20, 2016: CARBON, TOTAL, began October 2007, Resolved.

Show all 13 health-based violations before October 20, 2016
Contaminant Start date Status
CARBON, TOTAL
Treatment technique failure
 Oct 1, 2007 Resolved
CARBON, TOTAL
Treatment technique failure
 Jul 1, 2005 Resolved
CARBON, TOTAL
Treatment technique failure
 Apr 1, 2005 Resolved
Chlorine dioxide
Disinfectant residual limit exceeded
 Feb 5, 2005 Resolved
CARBON, TOTAL
Treatment technique failure
 Jan 1, 2005 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
 Oct 1, 2004 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
 Jul 1, 2004 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Nov 1, 1994 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Jun 1, 1994 Resolved
Total Coliform
Contaminant limit exceeded
 Jun 1, 1991 Resolved
Total Coliform
Contaminant limit exceeded
 May 1, 1991 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
 Sep 1, 1984 Archived
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
 Sep 1, 1984 Archived

Enforcement actions

Oklahoma regulators took 8 formal enforcement actions against Guthrie between 1991 and 2022. The most recent was a compliance order (no penalty) in January 2022.

Date By Action Violations covered
Jan 6, 2022 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Chlorite
Mar 12, 2008 Oklahoma Compliance order with a penalty 1 violation (1 health-based): CARBON, TOTAL
Jan 25, 2006 Oklahoma Compliance order with a penalty 2 violations (2 health-based): CARBON, TOTAL
Jan 6, 2006 Oklahoma Compliance order with a penalty 2 violations (1 health-based): Chlorite, Chlorine dioxide
Nov 14, 2005 Oklahoma Compliance order with a penalty 1 violation (1 health-based): CARBON, TOTAL
Apr 19, 2005 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Dec 29, 2004 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Jul 18, 1991 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Total Coliform

What the violations mean

CARBON, TOTAL

2 incidents

The system did not complete a treatment step or action that federal rules require for CARBON, TOTAL (a treatment technique violation).

The utility had to notify customers about each of these violations.

Chlorite

1 incident

Test results for Chlorite were above the federal limit (a maximum contaminant level violation).

The utility had to notify customers about this violation.

Where the water comes from

Guthrie draws water from 3 surface water intakes. 2 other community water systems buy water from Guthrie.

Community systems that buy water from it

Annual water quality report

Guthrie 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