PlainWater
States → Texas

CITY OF WILLOW PARK

PWS ID: TX1840027 · WILLOW PARK, Texas 76087-8894

CITY OF WILLOW PARK serves 4,936 people in WILLOW PARK, Texas using Surface Water water sources. It has 56 recorded EPA violations, including 13 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).

Water Quality Snapshot: CITY OF WILLOW PARK

CITY OF WILLOW PARK is a local-owned community water system that delivers drinking water to 4,936 residents in WILLOW PARK, Texas (Parker County) through 2,711 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 56 total violations for this system , of which 13 (23%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 25 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is Public Notice, recorded in 13 violations (Other). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 59.5 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across Texas, EPA tracks 7,351 public water systems serving 33,253,313 people, with 746,210 cumulative violations and 162,945 health-based violations on record. About 90% of systems in the state carry at least one violation, and state-wide the average per system is 101.5 violations. CITY OF WILLOW PARK's 56 violations sit below the Texas average. Statewide, 1,068 of 1,147 UCMR5-tested systems have reported PFAS detections (93.1%). 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
4,936
Total Violations
56
Health-Based Violations
13
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
2,711
County
Parker
School/Daycare
No
MCL Violations
13
Monitoring Violations
25
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Public Notice Other 13 2022
Chlorine MR 13 2019
Coliform (TCR) MCL 8 2009
Lead and Copper Rule MR 5 2021
Revised Total Coliform Rule MCL 5 2020
Revised Total Coliform Rule MON 4 2020
Coliform (TCR) MR 3 2009
Consumer Confidence Rule Other 2 2003

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 18 of 540 samples detected PFAS.

Contaminant Date Result MRL Status
NMeFOSAA 7/15/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 7/15/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 7/15/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 7/15/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFHxA 5/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 5/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 5/20/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFOS 5/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 5/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 5/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 5/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 5/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
lithium 5/20/2024 16.7000 µg/L 9 µg/L Detected
PFOA 5/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 5/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 5/20/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 5/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 5/20/2024 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 5/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 5/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 5/20/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 5/20/2024 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 5/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFDA 5/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 5/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFEESA 5/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 5/20/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFMBA 5/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 5/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFMPA 5/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 5/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 5/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 5/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 5/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeS 5/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFMPA 5/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 5/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 5/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 5/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 5/20/2024 <0.02 µg/L 0.02 µg/L Not Detected
8:2 FTS 5/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 5/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
lithium 5/20/2024 53.6000 µg/L 9 µg/L Detected
PFTA 5/20/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFHpA 5/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 5/20/2024 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 5/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 5/20/2024 <0.006 µg/L 0.006 µg/L Not Detected
4:2 FTS 5/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 5/20/2024 <0.004 µg/L 0.004 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 CITY OF WILLOW PARK.

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 TX1840027 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Texas Drinking Water Authority

Texas Commission on Environmental Quality (TCEQ) — Drinking Water Watch is the primacy agency that licenses and inspects CITY OF WILLOW PARK under EPA-delegated authority.

Open TX regulator portal

Source: Texas Commission on Environmental Quality (TCEQ) — Drinking Water Watch

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
2022 Public Notice Other 13 SDWIS / TX1840027 / 7500
2021 Lead and Copper Rule MR 5 SDWIS / TX1840027 / 5000
2020 Revised Total Coliform Rule MCL 5 SDWIS / TX1840027 / 8000
2020 Revised Total Coliform Rule MON 4 SDWIS / TX1840027 / 8000
2019 Chlorine MR 13 SDWIS / TX1840027 / 0999
2009 Coliform (TCR) MCL 8 SDWIS / TX1840027 / 3100
2009 Coliform (TCR) MR 3 SDWIS / TX1840027 / 3100
2003 Consumer Confidence Rule Other 2 SDWIS / TX1840027 / 7000

How CITY OF WILLOW PARK Compares

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

Metric CITY OF WILLOW PARK Texas avg Federal benchmark
Total violations 56 101.5 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 13 22.2 Indicates a contaminant exceeded a federal MCL
PFAS detection 1 compound 93.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 4,936 4,524 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 7,351 regulated public water systems in Texas.

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 CITY OF WILLOW PARK water safe to drink? ▼
CITY OF WILLOW PARK (PWS ID: TX1840027) has 56 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 4,936 people using Surface Water sources.
How many people does CITY OF WILLOW PARK serve? ▼
CITY OF WILLOW PARK serves 4,936 people in WILLOW PARK, Texas. It is a Local-owned system using Surface Water water sources with 2,711 service connections.
What type of violations does CITY OF WILLOW PARK have? ▼
CITY OF WILLOW PARK has 56 total violations: 13 health-based violations (MCL exceedances or treatment failures), 25 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in CITY OF WILLOW PARK water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in CITY OF WILLOW PARK's water supply: lithium. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does CITY OF WILLOW PARK use? ▼
CITY OF WILLOW PARK 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.

Explore PlainWater

Water in Texas

All systems in state
All States

Water quality by state
Contaminants

PFAS & other pollutants
Guides

Understanding water quality

Related Data for Texas

Environmental Data → Natural Hazards → Air Quality → Healthcare Access → Climate Data →
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.

Related

Browse all → | Rankings →
Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial