PITTSBURG CO. RWD #5

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

PWSID: OK3006115 · Mcalester, OK · Serves 1,750 people

Health Violations

PITTSBURG CO. RWD #5 has 107 health-based violations out of 107 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.

Population Served

1,750

Total Violations

107

Health Violations

107

Source Type

Surface Water

PITTSBURG CO. RWD #5 (PWSID OK3006115) 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 1,750 people in Mcalester, OK, and is subject to primacy enforcement by the Oklahoma drinking-water program.

The system's federal compliance record contains 107 total violations, with 107 classified as health-based (MCL exceedances or treatment-technique failures). 4 distinct contaminants have been cited, including Total Trihalomethanes (TTHM), Haloacetic Acids (HAA5), Total Coliform (RTCR). Recorded violations span 1984–2025.

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): OK3006115
System Type: CWS
Water Source: Surface Water
Location: Mcalester, OK
Population Served: 1,750
Health Violations: Yes (107)

What contaminants are in this water system?

Contaminant	Violations	Health-Based
Total Trihalomethanes (TTHM)	74	74
Haloacetic Acids (HAA5)	29	29
Total Coliform (RTCR)	3	3
Total Coliform	1	1

Violation History (107)

Contaminant	Type	Health	Date	Enforcement
Haloacetic Acids (HAA5)	MCL	Yes	Jul 1, 2025	-
Haloacetic Acids (HAA5)	MCL	Yes	Jul 1, 2025	-
Haloacetic Acids (HAA5)	MCL	Yes	Apr 1, 2025	4011175
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2025	-
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2025	4011171
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2025	-
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2023	4011159
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2023	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2023	4011145
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2023	4011159
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	4011156
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	4011156
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	4011155
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	4011156
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2022	4011153
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2022	4011153
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2022	4011153
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2022	4011157
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2022	4011157
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2022	4011151
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2022	4011151
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2022	4011157
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2022	4011157
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2022	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2022	4011151
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2022	4011149
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2022	4011149
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2022	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2021	4011148
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2021	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2021	4011145
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2021	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2021	4011145
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2021	4011162
Haloacetic Acids (HAA5)	MCL	Yes	Jan 1, 2021	4011145
Haloacetic Acids (HAA5)	MCL	Yes	Oct 1, 2020	4011145
Haloacetic Acids (HAA5)	MCL	Yes	Oct 1, 2020	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2020	4011145
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2020	4011162
Haloacetic Acids (HAA5)	MCL	Yes	Jul 1, 2020	4011145
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2020	4011145
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2020	4011145
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2020	4011162
Haloacetic Acids (HAA5)	MCL	Yes	Apr 1, 2020	4011145
Haloacetic Acids (HAA5)	MCL	Yes	Apr 1, 2020	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2020	4011145
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2020	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2019	4011145
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2019	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2019	4011145
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2019	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2019	4011145
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2019	4011145
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2019	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2018	4011145
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2018	4011162
Haloacetic Acids (HAA5)	MCL	Yes	Jul 1, 2018	4011145
Haloacetic Acids (HAA5)	MCL	Yes	Jul 1, 2018	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2018	4011145
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2018	4011145
Haloacetic Acids (HAA5)	MCL	Yes	Apr 1, 2018	4011145
Haloacetic Acids (HAA5)	MCL	Yes	Apr 1, 2018	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2018	4011145
Haloacetic Acids (HAA5)	MCL	Yes	Jan 1, 2018	4011145
Haloacetic Acids (HAA5)	MCL	Yes	Jan 1, 2018	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2017	4011145
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2017	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2017	4011145
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2017	4011162
Haloacetic Acids (HAA5)	MCL	Yes	Apr 1, 2017	4011145
Haloacetic Acids (HAA5)	MCL	Yes	Apr 1, 2017	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2017	4011145
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2017	4011162
Haloacetic Acids (HAA5)	MCL	Yes	Jan 1, 2017	4011145
Haloacetic Acids (HAA5)	MCL	Yes	Jan 1, 2017	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2017	4011145
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2017	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2016	4011145
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2016	4011162
Haloacetic Acids (HAA5)	MCL	Yes	Oct 1, 2016	4011145
Haloacetic Acids (HAA5)	MCL	Yes	Oct 1, 2016	4011162
Haloacetic Acids (HAA5)	MCL	Yes	Jul 1, 2016	4011145
Haloacetic Acids (HAA5)	MCL	Yes	Jul 1, 2016	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2016	4011145
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2016	4011162
Haloacetic Acids (HAA5)	MCL	Yes	Apr 1, 2016	4011145
Haloacetic Acids (HAA5)	MCL	Yes	Apr 1, 2016	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2016	4011145
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2016	4011162
Haloacetic Acids (HAA5)	MCL	Yes	Jan 1, 2016	4011145
Haloacetic Acids (HAA5)	MCL	Yes	Jan 1, 2016	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2016	4011145
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2016	4011162
Haloacetic Acids (HAA5)	MCL	Yes	Oct 1, 2015	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2015	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2015	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2015	4011162
Haloacetic Acids (HAA5)	MCL	Yes	Apr 1, 2015	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2015	4011162
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2014	4011162

Showing 100 of 107 violations.

Frequently Asked Questions

Is PITTSBURG CO. RWD #5 water safe to drink?

PITTSBURG CO. RWD #5 has 107 health-based violations out of 107 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 PITTSBURG CO. RWD #5 serve?

PITTSBURG CO. RWD #5 serves 1,750 people in Mcalester, OK. It is classified as a CWS water system.

What violations does PITTSBURG CO. RWD #5 have?

PITTSBURG CO. RWD #5 has 107 total violations on record spanning 1984–2025. 107 are health-based violations involving contaminants exceeding EPA limits.

What contaminants have been found in PITTSBURG CO. RWD #5 water?

Violations have been recorded for 4 contaminants. The most frequent: Total Trihalomethanes (TTHM), Haloacetic Acids (HAA5), Total Coliform (RTCR).

Explore More

Oklahoma Water Systems → All States → Contaminants →

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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