ALTUS

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

PWSID: OK1011501 · Altus, OK · Serves 18,717 people

Health Violations

ALTUS has 97 health-based violations out of 97 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.

Population Served

18,717

Total Violations

Health Violations

Source Type

Surface Water

ALTUS (PWSID OK1011501) 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 18,717 people in Altus, OK, and is subject to primacy enforcement by the Oklahoma drinking-water program.

The system's federal compliance record contains 97 total violations, with 97 classified as health-based (MCL exceedances or treatment-technique failures). 6 distinct contaminants have been cited, including Total Trihalomethanes (TTHM), Chloroform, Turbidity. Recorded violations span 1991–2025.

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): OK1011501
System Type: CWS
Water Source: Surface Water
Location: Altus, OK
Population Served: 18,717
Health Violations: Yes (97)

What contaminants are in this water system?

Contaminant	Violations	Health-Based
Total Trihalomethanes (TTHM)	64	64
Chloroform	16	16
Turbidity	7	7
Arsenic	6	6
Total Coliform (RTCR)	3	3
Contaminant 1009	1	1

Violation History (97)

Contaminant	Type	Health	Date	Enforcement
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2025	9208579
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2025	9208579
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2024	9208574
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2024	9208574
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2024	9208574
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2024	9208574
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2024	9208568
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2024	9208568
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2024	-
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2024	9208568
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2024	9208568
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2024	-
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2024	9208568
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2024	9208568
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2024	-
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2024	9208568
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2024	9208568
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2024	-
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	9208563
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	9208559
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	9208563
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	-
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	9208563
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	9208559
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	9208563
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	-
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	9208563
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	9208559
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	9208563
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	-
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	9208563
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	9208559
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	9208563
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	-
Arsenic	TT	Yes	Jan 1, 2024	9208548
Arsenic	TT	Yes	Jan 1, 2024	9208548
Arsenic	TT	Yes	Jan 1, 2024	9208546
Arsenic	TT	Yes	Jan 1, 2024	9208548
Arsenic	TT	Yes	Jan 1, 2024	9208548
Arsenic	TT	Yes	Jan 1, 2024	9208546
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2024	9208560
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2024	-
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2024	9208554
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2024	9208560
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2024	9208560
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2024	-
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2024	9208554
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2024	9208560
Turbidity	TT	Yes	Sep 1, 2022	9208529
Turbidity	TT	Yes	Sep 1, 2022	9208529
Turbidity	TT	Yes	Sep 1, 2022	9208529
Turbidity	TT	Yes	Aug 1, 2022	9208529
Turbidity	TT	Yes	Aug 1, 2022	9208529
Turbidity	TT	Yes	Aug 1, 2022	9208529
Turbidity	TT	Yes	Mar 1, 2020	9208516
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2016	9208481
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2016	9208481
Contaminant 1009	MCL	Yes	Mar 1, 2016	9208480
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2016	9208481
Chloroform	TT	Yes	Jan 1, 2016	9208488
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2015	9208481
Chloroform	TT	Yes	Oct 1, 2015	9208481
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2015	9208481
Chloroform	TT	Yes	Jul 1, 2015	9208489
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2015	9208482
Chloroform	TT	Yes	Apr 1, 2015	9208482
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2015	9208483
Chloroform	TT	Yes	Jan 1, 2015	9208483
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2014	9208484
Chloroform	TT	Yes	Oct 1, 2014	9208484
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2014	9208485
Chloroform	TT	Yes	Jul 1, 2014	9208485
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2014	9208486
Chloroform	TT	Yes	Apr 1, 2014	9208486
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2014	9208487
Chloroform	TT	Yes	Jan 1, 2014	9208487
Chloroform	TT	Yes	Oct 1, 2013	9208489
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2013	9208487
Chloroform	TT	Yes	Jul 1, 2013	9208489
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2013	9208487
Chloroform	TT	Yes	Apr 1, 2013	9208489
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2013	9208487
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2013	9208487
Chloroform	TT	Yes	Jan 1, 2013	9208489
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2012	9208489
Chloroform	TT	Yes	Oct 1, 2012	9208489
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2012	9208489
Chloroform	TT	Yes	Jul 1, 2012	9208489
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2012	9208489
Chloroform	TT	Yes	Apr 1, 2012	9208489
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2012	9208489
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2011	9208489
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2011	9208489
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2011	9208489
Total Coliform (RTCR)	MCL	Yes	Sep 1, 1995	9208466
Total Coliform (RTCR)	MCL	Yes	Jun 1, 1994	9208465
Total Coliform (RTCR)	MCL	Yes	Jun 1, 1991	9208464

Frequently Asked Questions

Is ALTUS water safe to drink?

ALTUS has 97 health-based violations out of 97 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 ALTUS serve?

ALTUS serves 18,717 people in Altus, OK. It is classified as a CWS water system.

What violations does ALTUS have?

ALTUS has 97 total violations on record spanning 1991–2025. 97 are health-based violations involving contaminants exceeding EPA limits.

What contaminants have been found in ALTUS water?

Violations have been recorded for 6 contaminants. The most frequent: Total Trihalomethanes (TTHM), Chloroform, Turbidity.

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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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