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Community Water System · PWS IL1970350

Elwood

Elwood, Illinois 60421 - drinking water served from groundwater sources to 2,229 people, tracked in EPA SDWIS and UCMR5.

2,229
People served
292
EPA violations
5
Health-based
Untested
UCMR5 result

The verdict

EPA records 292 drinking-water violations at Elwood, 2% of them health-based - above the Illinois per-system average.

292
Total EPA violations on record
2%
Health-based (MCL / treatment failure)
2,229
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Elwood

Elwood is a local-owned community water system that delivers drinking water to 2,229 residents in Elwood, Illinois (Will County) through 1,080 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 292 total violations for this system , of which 5 (2%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 275 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is p-Dichlorobenzene, recorded in 15 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%).

Elwood's 292 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
2,229
Total Violations
292
Health-Based Violations
5
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,080
County
Will
School/Daycare
No
MCL Violations
2
Monitoring Violations
275
Treatment Tech Violations
3

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
p-Dichlorobenzene MR 15 1994
1,2-Dichloroethane MR 15 1994
Carbon tetrachloride MR 15 1994
Benzene MR 15 1994
Trichloroethylene MR 15 1994
1,1-Dichloroethylene MR 15 1994
1,1,1-Trichloroethane MR 14 1994
cis-1,2-Dichloroethylene MR 13 1994
Xylenes, Total MR 13 1994
o-Dichlorobenzene MR 13 1994
Tetrachloroethylene MR 13 1994
Ethylbenzene MR 13 1994
trans-1,2-Dichloroethylene MR 13 1994
Toluene MR 13 1994
CHLOROBENZENE MR 13 1994
Coliform (TCR) MR 13 1996
Styrene MR 13 1994
1,2-Dichloropropane MR 13 1994
Combined Radium (-226 and -228) MR 10 2018
Lead and Copper Rule MR 4 1997
1,2,4-Trichlorobenzene MR 3 1994
DICHLOROMETHANE MR 3 1994
Nitrate-Nitrite MR 3 1999
1,1,2-Trichloroethane MR 3 1994
Lead and Copper Rule TT 3 1998
Coliform (TCR) MCL 2 1992
Consumer Confidence Rule Other 1 2025
Gross Alpha, Excl. Radon and U MR 1 1977
Total Haloacetic Acids (HAA5) MR 1 2025

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 Elwood.

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 IL1970350 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 Elwood 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
2025 Consumer Confidence Rule Other 1 SDWIS / IL1970350 / 7000
2025 Total Haloacetic Acids (HAA5) MR 1 SDWIS / IL1970350 / 2456
2018 Combined Radium (-226 and -228) MR 10 SDWIS / IL1970350 / 4010
1999 Nitrate-Nitrite MR 3 SDWIS / IL1970350 / 1038
1998 Lead and Copper Rule TT 3 SDWIS / IL1970350 / 5000
1997 Lead and Copper Rule MR 4 SDWIS / IL1970350 / 5000
1996 Coliform (TCR) MR 13 SDWIS / IL1970350 / 3100
1994 p-Dichlorobenzene MR 15 SDWIS / IL1970350 / 2969
1994 1,2-Dichloroethane MR 15 SDWIS / IL1970350 / 2980
1994 Carbon tetrachloride MR 15 SDWIS / IL1970350 / 2982
1994 Benzene MR 15 SDWIS / IL1970350 / 2990
1994 Trichloroethylene MR 15 SDWIS / IL1970350 / 2984
1994 1,1-Dichloroethylene MR 15 SDWIS / IL1970350 / 2977
1994 1,1,1-Trichloroethane MR 14 SDWIS / IL1970350 / 2981
1994 cis-1,2-Dichloroethylene MR 13 SDWIS / IL1970350 / 2380

How Elwood Compares

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

Metric Elwood Illinois avg Federal benchmark
Total violations 292 69.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 5 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 2,229 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 Elwood water safe to drink? ▼
Elwood (PWS ID: IL1970350) has 292 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,229 people using Groundwater sources.
How many people does Elwood serve? ▼
Elwood serves 2,229 people in Elwood, Illinois. It is a Local-owned system using Groundwater water sources with 1,080 service connections.
What type of violations does Elwood have? ▼
Elwood has 292 total violations: 5 health-based violations (MCL exceedances or treatment failures), 275 monitoring/reporting violations, and 3 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Elwood water? ▼
No PFAS testing data is available for Elwood under the EPA's UCMR5 monitoring program.
What water source does Elwood use? ▼
Elwood uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
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.