Non-Transient Non-Community Water System · PWS PA1150736

Willowdale Town Center

Chadds Ford, Pennsylvania 19317 - drinking water served from groundwater sources to 500 people, tracked in EPA SDWIS and UCMR5.

Compiled by PlainWater Editorial, Drinking Water Quality Editorial Team · May 15, 2026

500
People served: 166
EPA violations: 12
Health-based: Untested
UCMR5 result

The verdict

EPA records 166 drinking-water violations at Willowdale Town Center, 7% of them health-based - above the Pennsylvania per-system average.

166
Total EPA violations on record: 7%
Health-based (MCL / treatment failure): 500
People served by this system: N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Willowdale Town Center

Willowdale Town Center is a private-owned non-transient non-community water system that delivers drinking water to 500 residents in Chadds Ford, Pennsylvania (Chester County) through 8 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 166 total violations for this system , of which 12 (7%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 150 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 12 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 Pennsylvania, EPA tracks 7,701 public water systems serving 12,630,061 people, with 1,159,868 cumulative violations and 68,517 health-based violations on record. About 97% of systems in the state carry at least one violation, and state-wide the average per system is 150.6 violations. Statewide, 224 of 389 UCMR5-tested systems have reported PFAS detections (57.6%).

Willowdale Town Center's 166 violations sit above the Pennsylvania 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

500

Total Violations

166

Health-Based Violations

Water Source

Groundwater

System Details

System Type: Non-Transient Non-Community
Owner Type: Private
Connections: 8
County: Chester
School/Daycare: No
MCL Violations: 12
Monitoring Violations: 150
Treatment Tech Violations: 0

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
Coliform (TCR)	MCL	12	2000
Coliform (TCR)	MR	9	2008
Nitrite	MR	7	2009
Nitrate	MR	5	2009
Lead and Copper Rule	MR	5	2023
Revised Total Coliform Rule	RPT	4	2019
Arsenic	MR	4	2016
cis-1,2-Dichloroethylene	MR	3	2006
Xylenes, Total	MR	3	2006
DICHLOROMETHANE	MR	3	2006
o-Dichlorobenzene	MR	3	2006
p-Dichlorobenzene	MR	3	2006
1,1-Dichloroethylene	MR	3	2006
trans-1,2-Dichloroethylene	MR	3	2006
1,2-Dichloroethane	MR	3	2006
1,2-Dichloropropane	MR	3	2006
1,1,2-Trichloroethane	MR	3	2006
Tetrachloroethylene	MR	3	2006
Benzene	MR	3	2006
Toluene	MR	3	2006
Ethylbenzene	MR	3	2006
Styrene	MR	3	2006
CHLOROBENZENE	MR	3	2006
2,4-D	MR	3	2016
BHC-GAMMA	MR	3	2016
1,2,4-Trichlorobenzene	MR	3	2006
Trichloroethylene	MR	3	2006
1,1,1-Trichloroethane	MR	3	2006
Carbon tetrachloride	MR	3	2006
Toxaphene	MR	2	2016

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 Willowdale Town Center.

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 PA1150736 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Pennsylvania Drinking Water Authority

Pennsylvania DEP, Bureau of Safe Drinking Water is the primacy agency that licenses and inspects Willowdale Town Center under EPA-delegated authority.

Open PA regulator portal

Source: Pennsylvania DEP, Bureau of Safe Drinking Water

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
2023	Lead and Copper Rule	MR	5	SDWIS / PA1150736 / 5000
2019	Revised Total Coliform Rule	RPT	4	SDWIS / PA1150736 / 8000
2016	Arsenic	MR	4	SDWIS / PA1150736 / 1005
2016	2,4-D	MR	3	SDWIS / PA1150736 / 2105
2016	BHC-GAMMA	MR	3	SDWIS / PA1150736 / 2010
2016	Toxaphene	MR	2	SDWIS / PA1150736 / 2020
2016	Dalapon	MR	2	SDWIS / PA1150736 / 2031
2016	Picloram	MR	2	SDWIS / PA1150736 / 2040
2016	Dinoseb	MR	2	SDWIS / PA1150736 / 2041
2016	Hexachlorocyclopentadiene	MR	2	SDWIS / PA1150736 / 2042
2016	LASSO	MR	2	SDWIS / PA1150736 / 2051
2016	Heptachlor epoxide	MR	2	SDWIS / PA1150736 / 2067
2016	2,4,5-TP	MR	2	SDWIS / PA1150736 / 2110
2016	HEXACHLOROBENZENE	MR	2	SDWIS / PA1150736 / 2274
2016	Pentachlorophenol	MR	2	SDWIS / PA1150736 / 2326

How Willowdale Town Center Compares

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

Metric	Willowdale Town Center	Pennsylvania avg	Federal benchmark
Total violations	166	150.6	SDWA compliance, any non-zero count is a recorded breach
Health-based violations	12	8.9	Indicates a contaminant exceeded a federal MCL
PFAS detection	None	57.6%	EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served	500	1,640	Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 7,701 regulated public water systems in Pennsylvania.

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 Willowdale Town Center water safe to drink? ▼

Willowdale Town Center (PWS ID: PA1150736) has 166 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 500 people using Groundwater sources.

How many people does Willowdale Town Center serve? ▼

Willowdale Town Center serves 500 people in Chadds Ford, Pennsylvania. It is a Private-owned system using Groundwater water sources with 8 service connections.

What type of violations does Willowdale Town Center have? ▼

Willowdale Town Center has 166 total violations: 12 health-based violations (MCL exceedances or treatment failures), 150 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in Willowdale Town Center water? ▼

No PFAS testing data is available for Willowdale Town Center under the EPA's UCMR5 monitoring program.

What water source does Willowdale Town Center use? ▼

Willowdale Town Center uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.

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.