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Transient Non-Community Water System · PWS UTAH25132

Willow Park

Lehi, Utah 84043 - drinking water served from groundwater sources to 202 people, tracked in EPA SDWIS and UCMR5.

202
People served
112
EPA violations
24
Health-based
Untested
UCMR5 result

The verdict

EPA records 112 drinking-water violations at Willow Park, 21% of them health-based - below the Utah per-system average.

112
Total EPA violations on record
21%
Health-based (MCL / treatment failure)
202
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Willow Park

Willow Park is a local-owned transient non-community water system that delivers drinking water to 202 residents in Lehi, Utah (Utah County) through 10 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 112 total violations for this system , of which 24 (21%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 77 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 30 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Utah, EPA tracks 1,068 public water systems serving 3,870,776 people, with 169,784 cumulative violations and 10,671 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 159 violations. Statewide, 91 of 129 UCMR5-tested systems have reported PFAS detections (70.5%).

Willow Park's 112 violations sit below the Utah 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
202
Total Violations
112
Health-Based Violations
24
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
Local
Connections
10
County
Utah
School/Daycare
No
MCL Violations
2
Monitoring Violations
77
Treatment Tech Violations
22

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 30 2015
Nitrate MR 17 2015
Revised Total Coliform Rule MON 15 2020
Groundwater Rule TT 13 2018
E. COLI MR 12 2020
Revised Total Coliform Rule TT 9 2018
Coliform (TCR) Other 5 1998
Nitrite MR 3 1996
Revised Total Coliform Rule Other 3 2017
Revised Total Coliform Rule RPT 3 2018
Coliform (TCR) MCL 2 2007

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 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 UTAH25132 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Utah Drinking Water Authority

Utah'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 UT 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
2020 Revised Total Coliform Rule MON 15 SDWIS / UTAH25132 / 8000
2020 E. COLI MR 12 SDWIS / UTAH25132 / 3014
2018 Groundwater Rule TT 13 SDWIS / UTAH25132 / 0700
2018 Revised Total Coliform Rule TT 9 SDWIS / UTAH25132 / 8000
2018 Revised Total Coliform Rule RPT 3 SDWIS / UTAH25132 / 8000
2017 Revised Total Coliform Rule Other 3 SDWIS / UTAH25132 / 8000
2015 Coliform (TCR) MR 30 SDWIS / UTAH25132 / 3100
2015 Nitrate MR 17 SDWIS / UTAH25132 / 1040
2007 Coliform (TCR) MCL 2 SDWIS / UTAH25132 / 3100
1998 Coliform (TCR) Other 5 SDWIS / UTAH25132 / 3100
1996 Nitrite MR 3 SDWIS / UTAH25132 / 1041

How Willow Park Compares

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

Metric Willow Park Utah avg Federal benchmark
Total violations 112 159 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 24 10 Indicates a contaminant exceeded a federal MCL
PFAS detection None 70.5% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 202 3,624 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,068 regulated public water systems in Utah.

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 Willow Park water safe to drink? ▼
Willow Park (PWS ID: UTAH25132) has 112 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 202 people using Groundwater sources.
How many people does Willow Park serve? ▼
Willow Park serves 202 people in Lehi, Utah. It is a Local-owned system using Groundwater water sources with 10 service connections.
What type of violations does Willow Park have? ▼
Willow Park has 112 total violations: 24 health-based violations (MCL exceedances or treatment failures), 77 monitoring/reporting violations, and 22 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Willow Park water? ▼
No PFAS testing data is available for Willow Park under the EPA's UCMR5 monitoring program.
What water source does Willow Park use? ▼
Willow Park uses Groundwater as its primary water source. It is classified as a Transient Non-Community Water System, serving transient populations.
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.