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LITTLE CHUTE WATERWORKS

PWS ID: WI4450338 · LITTLE CHUTE, Wisconsin 54140

LITTLE CHUTE WATERWORKS serves 12,168 people in LITTLE CHUTE, Wisconsin using Groundwater water sources. It has 99 recorded EPA violations, including 2 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).

Water Quality Snapshot: LITTLE CHUTE WATERWORKS

LITTLE CHUTE WATERWORKS is a local-owned community water system that delivers drinking water to 12,168 residents in LITTLE CHUTE, Wisconsin (Outagamie County) through 4,066 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 99 total violations for this system , of which 2 (2%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 84 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 cis-1,2-Dichloroethylene, recorded in 4 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 12 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across Wisconsin, EPA tracks 10,988 public water systems serving 5,131,439 people, with 285,161 cumulative violations and 58,688 health-based violations on record. About 72% of systems in the state carry at least one violation, and state-wide the average per system is 26 violations. LITTLE CHUTE WATERWORKS's 99 violations sit above the Wisconsin average. Statewide, 78 of 202 UCMR5-tested systems have reported PFAS detections (38.6%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
12,168
Total Violations
99
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
4,066
County
Outagamie
School/Daycare
No
MCL Violations
0
Monitoring Violations
84
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
cis-1,2-Dichloroethylene MR 4 2003
Xylenes, Total MR 4 2003
DICHLOROMETHANE MR 4 2003
o-Dichlorobenzene MR 4 2003
p-Dichlorobenzene MR 4 2003
Vinyl chloride MR 4 2003
1,1,1-Trichloroethane MR 4 2003
Trichloroethylene MR 4 2003
Tetrachloroethylene MR 4 2003
CHLOROBENZENE MR 4 2003
Benzene MR 4 2003
Ethylbenzene MR 4 2003
Styrene MR 4 2003
1,2-Dichloroethane MR 4 2003
trans-1,2-Dichloroethylene MR 4 2003
1,1-Dichloroethylene MR 4 2003
1,2,4-Trichlorobenzene MR 4 2003
1,1,2-Trichloroethane MR 4 2003
Carbon tetrachloride MR 4 2003
1,2-Dichloropropane MR 4 2003
Toluene MR 4 2003
LEAD AND COPPER RULE REVISIONS TT 2 2024
Public Notice Other 1 2024

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 6 of 180 samples detected PFAS.

Contaminant Date Result MRL Status
ADONA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 7/23/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFTA 7/23/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 7/23/2024 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 7/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFOS 7/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 7/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 7/23/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 7/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 7/23/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFBA 7/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 7/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
lithium 7/23/2024 12.0000 µg/L 9 µg/L Detected
8:2 FTS 7/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 7/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 7/23/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 7/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 7/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
HFPO-DA 7/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeS 7/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 7/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFTA 7/23/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 7/23/2024 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 7/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 7/23/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFBS 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 7/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 7/23/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 7/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 7/23/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHpS 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 7/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
lithium 7/23/2024 11.0000 µg/L 9 µg/L Detected
ADONA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected

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 LITTLE CHUTE WATERWORKS.

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 WI4450338 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Wisconsin Drinking Water Authority

Wisconsin DNR — Drinking Water and Groundwater is the primacy agency that licenses and inspects LITTLE CHUTE WATERWORKS under EPA-delegated authority.

Open WI regulator portal

Source: Wisconsin DNR — Drinking Water and Groundwater

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 LEAD AND COPPER RULE REVISIONS TT 2 SDWIS / WI4450338 / 5200
2024 Public Notice Other 1 SDWIS / WI4450338 / 7500
2003 cis-1,2-Dichloroethylene MR 4 SDWIS / WI4450338 / 2380
2003 Xylenes, Total MR 4 SDWIS / WI4450338 / 2955
2003 DICHLOROMETHANE MR 4 SDWIS / WI4450338 / 2964
2003 o-Dichlorobenzene MR 4 SDWIS / WI4450338 / 2968
2003 p-Dichlorobenzene MR 4 SDWIS / WI4450338 / 2969
2003 Vinyl chloride MR 4 SDWIS / WI4450338 / 2976
2003 1,1,1-Trichloroethane MR 4 SDWIS / WI4450338 / 2981
2003 Trichloroethylene MR 4 SDWIS / WI4450338 / 2984
2003 Tetrachloroethylene MR 4 SDWIS / WI4450338 / 2987
2003 CHLOROBENZENE MR 4 SDWIS / WI4450338 / 2989
2003 Benzene MR 4 SDWIS / WI4450338 / 2990
2003 Ethylbenzene MR 4 SDWIS / WI4450338 / 2992
2003 Styrene MR 4 SDWIS / WI4450338 / 2996

How LITTLE CHUTE WATERWORKS Compares

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

Metric LITTLE CHUTE WATERWORKS Wisconsin avg Federal benchmark
Total violations 99 26 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 2 5.3 Indicates a contaminant exceeded a federal MCL
PFAS detection 1 compound 38.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 12,168 467 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 10,988 regulated public water systems in Wisconsin.

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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is LITTLE CHUTE WATERWORKS water safe to drink? ▼
LITTLE CHUTE WATERWORKS (PWS ID: WI4450338) has 99 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 12,168 people using Groundwater sources.
How many people does LITTLE CHUTE WATERWORKS serve? ▼
LITTLE CHUTE WATERWORKS serves 12,168 people in LITTLE CHUTE, Wisconsin. It is a Local-owned system using Groundwater water sources with 4,066 service connections.
What type of violations does LITTLE CHUTE WATERWORKS have? ▼
LITTLE CHUTE WATERWORKS has 99 total violations: 2 health-based violations (MCL exceedances or treatment failures), 84 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in LITTLE CHUTE WATERWORKS water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in LITTLE CHUTE WATERWORKS's water supply: lithium. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does LITTLE CHUTE WATERWORKS use? ▼
LITTLE CHUTE WATERWORKS 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.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial