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WEATHERFORD

PWS ID: OK2002002 · WEATHERFORD, Oklahoma 73096-0569

WEATHERFORD serves 10,833 people in WEATHERFORD, Oklahoma using Groundwater water sources. It has 373 recorded EPA violations, including 328 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).

Water Quality Snapshot: WEATHERFORD

WEATHERFORD is a local-owned community water system that delivers drinking water to 10,833 residents in WEATHERFORD, Oklahoma (Custer County) through 5,956 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 373 total violations for this system , of which 328 (88%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 43 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Arsenic, recorded in 309 violations (MCL, health-based). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 26.9 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

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. WEATHERFORD's 373 violations sit above the Oklahoma average. Statewide, 101 of 166 UCMR5-tested systems have reported PFAS detections (60.8%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
10,833
Total Violations
373
Health-Based Violations
328
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
5,956
County
Custer
School/Daycare
No
MCL Violations
328
Monitoring Violations
43
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Arsenic MCL 309 2012
Coliform (TCR) MCL 19 2006
Arsenic MR 8 2024
Glyphosate MR 7 2005
TTHM MR 4 2022
Total Haloacetic Acids (HAA5) MR 4 2022
Chlorine MR 4 2024
Nitrate-Nitrite MR 4 2014
Diquat MR 4 2014
E. COLI MR 3 2024
2,4-D MR 3 2005
Coliform (TCR) MR 2 1998

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 4 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFOA 4/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 4/4/2023 <0.02 µg/L 0.02 µg/L Not Detected
lithium 4/4/2023 22.3000 µg/L 9 µg/L Detected
NMeFOSAA 4/4/2023 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 4/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 4/4/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 4/4/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFPeS 4/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFEESA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 4/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 4/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 4/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFDA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 4/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFNA 4/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 4/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 4/4/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 4/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 4/4/2023 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 4/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 4/4/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 4/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFDA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 4/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 4/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHxA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 4/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 4/4/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 4/4/2023 <0.008 µg/L 0.008 µg/L Not Detected
NMeFOSAA 4/4/2023 <0.006 µg/L 0.006 µg/L Not Detected
9Cl-PF3ONS 4/4/2023 <0.002 µg/L 0.002 µg/L Not Detected
lithium 4/4/2023 23.6000 µg/L 9 µg/L Detected
PFHpS 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 4/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFMBA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected

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 WEATHERFORD.

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 OK2002002 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
2024 Arsenic MR 8 SDWIS / OK2002002 / 1005
2024 Chlorine MR 4 SDWIS / OK2002002 / 0999
2024 E. COLI MR 3 SDWIS / OK2002002 / 3014
2022 TTHM MR 4 SDWIS / OK2002002 / 2950
2022 Total Haloacetic Acids (HAA5) MR 4 SDWIS / OK2002002 / 2456
2014 Nitrate-Nitrite MR 4 SDWIS / OK2002002 / 1038
2014 Diquat MR 4 SDWIS / OK2002002 / 2032
2012 Arsenic MCL 309 SDWIS / OK2002002 / 1005
2006 Coliform (TCR) MCL 19 SDWIS / OK2002002 / 3100
2005 Glyphosate MR 7 SDWIS / OK2002002 / 2034
2005 2,4-D MR 3 SDWIS / OK2002002 / 2105
1998 Coliform (TCR) MR 2 SDWIS / OK2002002 / 3100

How WEATHERFORD Compares

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

Metric WEATHERFORD Oklahoma avg Federal benchmark
Total violations 373 266.8 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 328 90.2 Indicates a contaminant exceeded a federal MCL
PFAS detection 1 compound 60.8% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 10,833 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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is WEATHERFORD water safe to drink? ▼
WEATHERFORD (PWS ID: OK2002002) has 373 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 10,833 people using Groundwater sources.
How many people does WEATHERFORD serve? ▼
WEATHERFORD serves 10,833 people in WEATHERFORD, Oklahoma. It is a Local-owned system using Groundwater water sources with 5,956 service connections.
What type of violations does WEATHERFORD have? ▼
WEATHERFORD has 373 total violations: 328 health-based violations (MCL exceedances or treatment failures), 43 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in WEATHERFORD water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in WEATHERFORD's water supply: lithium. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does WEATHERFORD use? ▼
WEATHERFORD uses Groundwater 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.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

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

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial