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Non-Transient Non-Community Water System · PWS IL3029389

325 S Route 31 LLC

White Plains, Illinois 10605 - drinking water served from groundwater sources to 500 people, tracked in EPA SDWIS and UCMR5.

500
People served
441
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 441 drinking-water violations at 325 S Route 31 LLC - above the Illinois per-system average.

441
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
500
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: 325 S Route 31 LLC

325 S Route 31 LLC is a private-owned non-transient non-community water system that delivers drinking water to 500 residents in White Plains, Illinois (Kendall County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 441 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 436 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 Lead and Copper Rule, recorded in 25 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%).

325 S Route 31 LLC's 441 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
500
Total Violations
441
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
Kendall
School/Daycare
No
MCL Violations
0
Monitoring Violations
436
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 25 2022
1,2,4-Trichlorobenzene MR 17 2017
Xylenes, Total MR 17 2017
DICHLOROMETHANE MR 17 2017
o-Dichlorobenzene MR 17 2017
1,1-Dichloroethylene MR 17 2017
trans-1,2-Dichloroethylene MR 17 2017
1,2-Dichloroethane MR 17 2017
1,2-Dichloropropane MR 17 2017
1,1,2-Trichloroethane MR 17 2017
CHLOROBENZENE MR 17 2017
Benzene MR 17 2017
Toluene MR 17 2017
Ethylbenzene MR 17 2017
p-Dichlorobenzene MR 17 2017
1,1,1-Trichloroethane MR 17 2017
Styrene MR 17 2017
cis-1,2-Dichloroethylene MR 17 2017
Vinyl chloride MR 17 2017
Trichloroethylene MR 17 2017
Tetrachloroethylene MR 17 2017
Carbon tetrachloride MR 17 2017
Coliform (TCR) MR 14 2012
Arsenic MR 11 2005
Chromium MR 3 2011
Mercury MR 3 2011
Antimony, Total MR 3 2011
Beryllium, Total MR 3 2011
Thallium, Total MR 3 2011
Revised Total Coliform Rule RPT 3 2022

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 325 S Route 31 LLC.

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 IL3029389 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 325 S Route 31 LLC 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
2023 Public Notice Other 2 SDWIS / IL3029389 / 7500
2022 Lead and Copper Rule MR 25 SDWIS / IL3029389 / 5000
2022 Revised Total Coliform Rule RPT 3 SDWIS / IL3029389 / 8000
2017 1,2,4-Trichlorobenzene MR 17 SDWIS / IL3029389 / 2378
2017 Xylenes, Total MR 17 SDWIS / IL3029389 / 2955
2017 DICHLOROMETHANE MR 17 SDWIS / IL3029389 / 2964
2017 o-Dichlorobenzene MR 17 SDWIS / IL3029389 / 2968
2017 1,1-Dichloroethylene MR 17 SDWIS / IL3029389 / 2977
2017 trans-1,2-Dichloroethylene MR 17 SDWIS / IL3029389 / 2979
2017 1,2-Dichloroethane MR 17 SDWIS / IL3029389 / 2980
2017 1,2-Dichloropropane MR 17 SDWIS / IL3029389 / 2983
2017 1,1,2-Trichloroethane MR 17 SDWIS / IL3029389 / 2985
2017 CHLOROBENZENE MR 17 SDWIS / IL3029389 / 2989
2017 Benzene MR 17 SDWIS / IL3029389 / 2990
2017 Toluene MR 17 SDWIS / IL3029389 / 2991

How 325 S Route 31 LLC Compares

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

Metric 325 S Route 31 LLC Illinois avg Federal benchmark
Total violations 441 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 500 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 325 S Route 31 LLC water safe to drink? ▼
325 S Route 31 LLC (PWS ID: IL3029389) has 441 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 325 S Route 31 LLC serve? ▼
325 S Route 31 LLC serves 500 people in White Plains, Illinois. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does 325 S Route 31 LLC have? ▼
325 S Route 31 LLC has 441 total violations: 0 health-based violations (MCL exceedances or treatment failures), 436 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in 325 S Route 31 LLC water? ▼
No PFAS testing data is available for 325 S Route 31 LLC under the EPA's UCMR5 monitoring program.
What water source does 325 S Route 31 LLC use? ▼
325 S Route 31 LLC 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.