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Non-Transient Non-Community Water System · PWS IL3147728

American Precision Elctronics

Carol Stream, Illinois 60188 - drinking water served from groundwater sources to 60 people, tracked in EPA SDWIS and UCMR5.

60
People served
2,881
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 2,881 drinking-water violations at American Precision Elctronics - above the Illinois per-system average.

2,881
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
60
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: American Precision Elctronics

American Precision Elctronics is a private-owned non-transient non-community water system that delivers drinking water to 60 residents in Carol Stream, Illinois (DuPage County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 2,881 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 2,877 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 trans-1,2-Dichloroethylene, recorded in 81 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, 199 of 487 UCMR5-tested systems have reported PFAS detections (40.9%).

American Precision Elctronics's 2,881 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
60
Total Violations
2,881
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
DuPage
School/Daycare
No
MCL Violations
0
Monitoring Violations
2,877
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
trans-1,2-Dichloroethylene MR 81 2023
Carbon tetrachloride MR 81 2023
1,2-Dichloropropane MR 81 2023
Trichloroethylene MR 81 2023
1,1,2-Trichloroethane MR 81 2023
Benzene MR 81 2023
Styrene MR 81 2023
Xylenes, Total MR 81 2023
o-Dichlorobenzene MR 81 2023
p-Dichlorobenzene MR 81 2023
Vinyl chloride MR 81 2023
1,2-Dichloroethane MR 81 2023
Tetrachloroethylene MR 81 2023
CHLOROBENZENE MR 81 2023
DICHLOROMETHANE MR 81 2023
Toluene MR 81 2023
Ethylbenzene MR 81 2023
1,1,1-Trichloroethane MR 81 2023
1,2,4-Trichlorobenzene MR 81 2023
cis-1,2-Dichloroethylene MR 81 2023
1,1-Dichloroethylene MR 81 2023
Total Polychlorinated Biphenyls (PCB) MR 39 2017
Lead and Copper Rule MR 38 2022
Carbofuran MR 36 2017
Atrazine MR 36 2017
Heptachlor MR 36 2017
Heptachlor epoxide MR 36 2017
2,4-D MR 36 2017
2,4,5-TP MR 36 2017
Pentachlorophenol MR 36 2017

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 American Precision Elctronics.

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 IL3147728 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 American Precision Elctronics 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
2024 Public Notice Other 4 SDWIS / IL3147728 / 7500
2023 trans-1,2-Dichloroethylene MR 81 SDWIS / IL3147728 / 2979
2023 Carbon tetrachloride MR 81 SDWIS / IL3147728 / 2982
2023 1,2-Dichloropropane MR 81 SDWIS / IL3147728 / 2983
2023 Trichloroethylene MR 81 SDWIS / IL3147728 / 2984
2023 1,1,2-Trichloroethane MR 81 SDWIS / IL3147728 / 2985
2023 Benzene MR 81 SDWIS / IL3147728 / 2990
2023 Styrene MR 81 SDWIS / IL3147728 / 2996
2023 Xylenes, Total MR 81 SDWIS / IL3147728 / 2955
2023 o-Dichlorobenzene MR 81 SDWIS / IL3147728 / 2968
2023 p-Dichlorobenzene MR 81 SDWIS / IL3147728 / 2969
2023 Vinyl chloride MR 81 SDWIS / IL3147728 / 2976
2023 1,2-Dichloroethane MR 81 SDWIS / IL3147728 / 2980
2023 Tetrachloroethylene MR 81 SDWIS / IL3147728 / 2987
2023 CHLOROBENZENE MR 81 SDWIS / IL3147728 / 2989

How American Precision Elctronics Compares

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

Metric American Precision Elctronics Illinois avg Federal benchmark
Total violations 2,881 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 40.9% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 60 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 American Precision Elctronics water safe to drink? ▼
American Precision Elctronics (PWS ID: IL3147728) has 2881 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 60 people using Groundwater sources.
How many people does American Precision Elctronics serve? ▼
American Precision Elctronics serves 60 people in Carol Stream, Illinois. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does American Precision Elctronics have? ▼
American Precision Elctronics has 2,881 total violations: 0 health-based violations (MCL exceedances or treatment failures), 2,877 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in American Precision Elctronics water? ▼
No PFAS testing data is available for American Precision Elctronics under the EPA's UCMR5 monitoring program.
What water source does American Precision Elctronics use? ▼
American Precision Elctronics 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.