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Non-Transient Non-Community Water System · PWS IL3161455

Primrose School

West Chicago, Illinois 60185 - drinking water served from groundwater sources to 50 people, tracked in EPA SDWIS and UCMR5.

50
People served
945
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 945 drinking-water violations at Primrose School - above the Illinois per-system average.

945
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
50
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Primrose School

Primrose School is a private-owned non-transient non-community water system that delivers drinking water to 50 residents in West Chicago, Illinois (Lake County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 945 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 945 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 trans-1,2-Dichloroethylene, recorded in 19 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 Illinois, EPA tracks 5,117 public water systems serving 12,576,876 people, with 355,322 cumulative violations and 52,932 health-based violations on record. About 81% of systems in the state carry at least one violation, and state-wide the average per system is 69.4 violations. Statewide, 123 of 487 UCMR5-tested systems have reported PFAS detections (25.3%).

Primrose School's 945 violations sit above the Illinois 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
50
Total Violations
945
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
Lake
School/Daycare
Yes
MCL Violations
0
Monitoring Violations
945
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
trans-1,2-Dichloroethylene MR 19 2020
Atrazine MR 19 2020
Pentachlorophenol MR 19 2020
Total Polychlorinated Biphenyls (PCB) MR 19 2020
1,1,1-Trichloroethane MR 19 2020
Chlordane MR 19 2020
ETHYLENE DIBROMIDE MR 19 2020
BHC-GAMMA MR 19 2020
Toxaphene MR 19 2020
Carbon tetrachloride MR 19 2020
Carbofuran MR 19 2020
1,2-Dichloropropane MR 19 2020
2,4,5-TP MR 19 2020
cis-1,2-Dichloroethylene MR 19 2020
Xylenes, Total MR 19 2020
DICHLOROMETHANE MR 19 2020
p-Dichlorobenzene MR 19 2020
Trichloroethylene MR 19 2020
CHLOROBENZENE MR 19 2020
Tetrachloroethylene MR 19 2020
Styrene MR 19 2020
Methoxychlor MR 19 2020
LASSO MR 19 2020
Heptachlor MR 19 2020
Heptachlor epoxide MR 19 2020
1,2-DIBROMO-3-CHLOROPROPANE MR 19 2020
Benzene MR 19 2020
1,2,4-Trichlorobenzene MR 19 2020
Toluene MR 19 2020
o-Dichlorobenzene MR 19 2020

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 Primrose School.

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 IL3161455 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Illinois Drinking Water Authority

Illinois EPA, Bureau of Water is the primacy agency that licenses and inspects Primrose School under EPA-delegated authority.

Open IL regulator portal

Source: Illinois EPA, Bureau of 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
2020 trans-1,2-Dichloroethylene MR 19 SDWIS / IL3161455 / 2979
2020 Atrazine MR 19 SDWIS / IL3161455 / 2050
2020 Pentachlorophenol MR 19 SDWIS / IL3161455 / 2326
2020 Total Polychlorinated Biphenyls (PCB) MR 19 SDWIS / IL3161455 / 2383
2020 1,1,1-Trichloroethane MR 19 SDWIS / IL3161455 / 2981
2020 Chlordane MR 19 SDWIS / IL3161455 / 2959
2020 ETHYLENE DIBROMIDE MR 19 SDWIS / IL3161455 / 2946
2020 BHC-GAMMA MR 19 SDWIS / IL3161455 / 2010
2020 Toxaphene MR 19 SDWIS / IL3161455 / 2020
2020 Carbon tetrachloride MR 19 SDWIS / IL3161455 / 2982
2020 Carbofuran MR 19 SDWIS / IL3161455 / 2046
2020 1,2-Dichloropropane MR 19 SDWIS / IL3161455 / 2983
2020 2,4,5-TP MR 19 SDWIS / IL3161455 / 2110
2020 cis-1,2-Dichloroethylene MR 19 SDWIS / IL3161455 / 2380
2020 Xylenes, Total MR 19 SDWIS / IL3161455 / 2955

How Primrose School Compares

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

Metric Primrose School Illinois avg Federal benchmark
Total violations 945 69.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 10.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 25.3% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 50 2,458 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 5,117 regulated public water systems in Illinois.

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 Primrose School water safe to drink? ▼
Primrose School (PWS ID: IL3161455) has 945 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 50 people using Groundwater sources.
How many people does Primrose School serve? ▼
Primrose School serves 50 people in West Chicago, Illinois. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does Primrose School have? ▼
Primrose School has 945 total violations: 0 health-based violations (MCL exceedances or treatment failures), 945 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Primrose School water? ▼
No PFAS testing data is available for Primrose School under the EPA's UCMR5 monitoring program.
What water source does Primrose School use? ▼
Primrose School 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.