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Community Water System · PWS OK1020604

Pittsburg

Pittsburg, Oklahoma 74560-0140 - drinking water served from surface water sources to 280 people, tracked in EPA SDWIS and UCMR5.

280
People served
1,230
EPA violations
891
Health-based
Untested
UCMR5 result

The verdict

EPA records 1,230 drinking-water violations at Pittsburg, 72% of them health-based - above the Oklahoma per-system average.

1,230
Total EPA violations on record
72%
Health-based (MCL / treatment failure)
280
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Pittsburg

Pittsburg is a local-owned community water system that delivers drinking water to 280 residents in Pittsburg, Oklahoma (Pittsburg County) through 142 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 1,230 total violations for this system , of which 891 (72%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 204 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is TTHM, recorded in 428 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Oklahoma, EPA tracks 1,262 public water systems serving 3,699,452 people, with 336,706 cumulative violations and 113,804 health-based violations on record. About 98% of systems in the state carry at least one violation, and state-wide the average per system is 266.8 violations. Statewide, 101 of 166 UCMR5-tested systems have reported PFAS detections (60.8%).

Pittsburg's 1,230 violations sit above the Oklahoma average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
280
Total Violations
1,230
Health-Based Violations
891
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
142
County
Pittsburg
School/Daycare
No
MCL Violations
768
Monitoring Violations
204
Treatment Tech Violations
123

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 428 2025
Total Haloacetic Acids (HAA5) MCL 303 2025
Surface Water Treatment Rule TT 113 2018
Lead and Copper Rule MR 51 2025
TTHM MR 42 2025
Coliform (TCR) MCL 37 2015
Total Haloacetic Acids (HAA5) MR 34 2025
Coliform (TCR) MR 27 2012
Surface Water Treatment Rule MR 14 2018
Gross Alpha, Excl. Radon and U MR 7 2011
Combined Uranium MR 7 2011
Combined Radium (-226 and -228) MR 7 2011
Gross Beta Particle Activity MR 7 2011
Lead and Copper Rule TT 6 2011
Chlorine MR 4 2024
Revised Total Coliform Rule MON 4 2024
Interim Enhanced Surface Water Treatment Rule TT 4 2008
Consumer Confidence Rule Other 3 2014

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Pittsburg.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID OK1020604 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Oklahoma Drinking Water Authority

Oklahoma's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find OK regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2025 TTHM MCL 428 SDWIS / OK1020604 / 2950
2025 Total Haloacetic Acids (HAA5) MCL 303 SDWIS / OK1020604 / 2456
2025 Lead and Copper Rule MR 51 SDWIS / OK1020604 / 5000
2025 TTHM MR 42 SDWIS / OK1020604 / 2950
2025 Total Haloacetic Acids (HAA5) MR 34 SDWIS / OK1020604 / 2456
2024 Chlorine MR 4 SDWIS / OK1020604 / 0999
2024 Revised Total Coliform Rule MON 4 SDWIS / OK1020604 / 8000
2018 Surface Water Treatment Rule TT 113 SDWIS / OK1020604 / 0200
2018 Surface Water Treatment Rule MR 14 SDWIS / OK1020604 / 0200
2015 Coliform (TCR) MCL 37 SDWIS / OK1020604 / 3100
2014 Consumer Confidence Rule Other 3 SDWIS / OK1020604 / 7000
2012 Coliform (TCR) MR 27 SDWIS / OK1020604 / 3100
2011 Gross Alpha, Excl. Radon and U MR 7 SDWIS / OK1020604 / 4000
2011 Combined Uranium MR 7 SDWIS / OK1020604 / 4006
2011 Combined Radium (-226 and -228) MR 7 SDWIS / OK1020604 / 4010

How Pittsburg Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Pittsburg Oklahoma avg Federal benchmark
Total violations 1,230 266.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 891 90.2 Indicates a contaminant exceeded a federal MCL
PFAS detection None 60.8% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 280 2,931 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,262 regulated public water systems in Oklahoma.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Pittsburg water safe to drink? ▼
Pittsburg (PWS ID: OK1020604) has 1230 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 280 people using Surface Water sources.
How many people does Pittsburg serve? ▼
Pittsburg serves 280 people in Pittsburg, Oklahoma. It is a Local-owned system using Surface Water water sources with 142 service connections.
What type of violations does Pittsburg have? ▼
Pittsburg has 1,230 total violations: 891 health-based violations (MCL exceedances or treatment failures), 204 monitoring/reporting violations, and 123 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Pittsburg water? ▼
No PFAS testing data is available for Pittsburg under the EPA's UCMR5 monitoring program.
What water source does Pittsburg use? ▼
Pittsburg uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

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

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.