HARTSHORNE

Compiled by PlainEnviro Editorial, Environmental Data Editorial Team · July 13, 2026

PWSID: OK3006101 · Hartshorne, OK · Serves 2,300 people

Health Violations

HARTSHORNE has 104 health-based violations out of 104 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.

Population Served

2,300

Total Violations

104

Health Violations

104

Source Type

Surface Water

HARTSHORNE (PWSID OK3006101) is a cws water system drawing from a surface water source, regulated by the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act. It serves approximately 2,300 people in Hartshorne, OK, and is subject to primacy enforcement by the Oklahoma drinking-water program.

The system's federal compliance record contains 104 total violations, with 104 classified as health-based (MCL exceedances or treatment-technique failures). 3 distinct contaminants have been cited, including Total Trihalomethanes (TTHM), Total Coliform (RTCR), Total Coliform. Recorded violations span 1985–2024.

A historical violation does not necessarily describe current water quality, systems must notify customers and remediate, and monitoring-type violations often reflect reporting lapses rather than contamination. The most authoritative real-time source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Oklahoma state drinking-water program's public portal.

System Details

EPA ID (PWSID): OK3006101
System Type: CWS
Water Source: Surface Water
Location: Hartshorne, OK
Population Served: 2,300
Health Violations: Yes (104)

What contaminants are in this water system?

Contaminant	Violations	Health-Based
Total Trihalomethanes (TTHM)	97	97
Total Coliform (RTCR)	6	6
Total Coliform	1	1

Violation History (104)

Contaminant	Type	Health	Date	Enforcement
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2024	9045886
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2024	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2024	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2024	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2024	9045880
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2024	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2024	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2024	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2024	9045880
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2023	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2023	9045878
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2023	-
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2023	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2023	9045878
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2023	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2023	9045878
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2023	-
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2023	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2023	9045878
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2023	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2023	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2023	9045876
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2023	9045876
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2023	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2023	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2023	9045876
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2023	9045876
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2023	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2023	9045873
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2023	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2023	9045873
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2023	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2023	9045873
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2023	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2023	9045873
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	9045870
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	9045870
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	9045869
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	9045870
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	9045870
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	9045870
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	9045869
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	9045870
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2022	9045867
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2022	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2022	9045867
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2022	9045867
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2022	9045860
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2022	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2022	9045860
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2022	9045860
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2022	9045860
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2022	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2022	9045860
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2022	9045860
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2022	9045860
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2022	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2022	9045860
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2022	9045860
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2022	9045861
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2022	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2022	9045861
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2022	9045861
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2022	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2022	9045861
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2021	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2021	9045862
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2021	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2021	9045863
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2020	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2020	9045864
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2020	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2019	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2019	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2019	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2019	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2019	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2018	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2018	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2018	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2018	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2018	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2018	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2017	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2017	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2017	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2017	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2016	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2016	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2016	9045840
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2016	9045840
Total Coliform (RTCR)	MCL	Yes	Jun 1, 1998	9045757
Total Coliform (RTCR)	MCL	Yes	Aug 1, 1997	9045755
Total Coliform (RTCR)	MCL	Yes	Jul 1, 1995	9045751

Showing 100 of 104 violations.

Frequently Asked Questions

Is HARTSHORNE water safe to drink?

HARTSHORNE has 104 health-based violations out of 104 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed. The system uses surface water water as its source.

How many people does HARTSHORNE serve?

HARTSHORNE serves 2,300 people in Hartshorne, OK. It is classified as a CWS water system.

What violations does HARTSHORNE have?

HARTSHORNE has 104 total violations on record spanning 1985–2024. 104 are health-based violations involving contaminants exceeding EPA limits.

What contaminants have been found in HARTSHORNE water?

Violations have been recorded for 3 contaminants. The most frequent: Total Trihalomethanes (TTHM), Total Coliform (RTCR), Total Coliform.

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About This Data

Water system data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations that may pose a direct risk to public health. Violation records may span multiple years.

Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services U.S. Environmental Protection Agency, SDWIS Federal Reporting Services

Read our methodology - how this data is sourced, computed, and verified.

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