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Community Water System · PWS WI4600435

Adell Waterworks

Adell, Wisconsin 53001 - drinking water served from groundwater sources to 510 people, tracked in EPA SDWIS and UCMR5.

510
People served
202
EPA violations
2
Health-based
Untested
UCMR5 result

The verdict

EPA records 202 drinking-water violations at Adell Waterworks, 1% of them health-based - above the Wisconsin per-system average.

202
Total EPA violations on record
1%
Health-based (MCL / treatment failure)
510
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Adell Waterworks

Adell Waterworks is a local-owned community water system that delivers drinking water to 510 residents in Adell, Wisconsin (Sheboygan County) through 192 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 202 total violations for this system , of which 2 (1%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 185 monitoring and reporting violations are on file. The most recent violation on record dates to 2021.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 21 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 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. Statewide, 78 of 202 UCMR5-tested systems have reported PFAS detections (38.6%).

Adell Waterworks's 202 violations sit above the Wisconsin 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
510
Total Violations
202
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
192
County
Sheboygan
School/Daycare
No
MCL Violations
0
Monitoring Violations
185
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 21 2009
Chlorine MR 15 2009
Nitrate MR 8 2001
Consumer Confidence Rule Other 8 2007
Xylenes, Total MR 6 2001
DICHLOROMETHANE MR 6 2001
o-Dichlorobenzene MR 6 2001
p-Dichlorobenzene MR 6 2001
trans-1,2-Dichloroethylene MR 6 2001
1,1,1-Trichloroethane MR 6 2001
1,2-Dichloropropane MR 6 2001
1,1,2-Trichloroethane MR 6 2001
Tetrachloroethylene MR 6 2001
CHLOROBENZENE MR 6 2001
Toluene MR 6 2001
Styrene MR 6 2001
TTHM MR 6 2017
Vinyl chloride MR 6 2001
cis-1,2-Dichloroethylene MR 6 2001
Trichloroethylene MR 6 2001
1,1-Dichloroethylene MR 6 2001
1,2,4-Trichlorobenzene MR 6 2001
1,2-Dichloroethane MR 6 2001
Total Haloacetic Acids (HAA5) MR 6 2017
Carbon tetrachloride MR 6 2001
Benzene MR 6 2001
Ethylbenzene MR 6 2001
Lead and Copper Rule MR 3 1993
Stage 1 Disinfectants and Disinfection Byproducts Rule TT 2 2021

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 Adell 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 WI4600435 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 Adell 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
2021 Stage 1 Disinfectants and Disinfection Byproducts Rule TT 2 SDWIS / WI4600435 / 0400
2017 TTHM MR 6 SDWIS / WI4600435 / 2950
2017 Total Haloacetic Acids (HAA5) MR 6 SDWIS / WI4600435 / 2456
2009 Coliform (TCR) MR 21 SDWIS / WI4600435 / 3100
2009 Chlorine MR 15 SDWIS / WI4600435 / 0999
2007 Consumer Confidence Rule Other 8 SDWIS / WI4600435 / 7000
2001 Nitrate MR 8 SDWIS / WI4600435 / 1040
2001 Xylenes, Total MR 6 SDWIS / WI4600435 / 2955
2001 DICHLOROMETHANE MR 6 SDWIS / WI4600435 / 2964
2001 o-Dichlorobenzene MR 6 SDWIS / WI4600435 / 2968
2001 p-Dichlorobenzene MR 6 SDWIS / WI4600435 / 2969
2001 trans-1,2-Dichloroethylene MR 6 SDWIS / WI4600435 / 2979
2001 1,1,1-Trichloroethane MR 6 SDWIS / WI4600435 / 2981
2001 1,2-Dichloropropane MR 6 SDWIS / WI4600435 / 2983
2001 1,1,2-Trichloroethane MR 6 SDWIS / WI4600435 / 2985

How Adell Waterworks Compares

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

Metric Adell Waterworks Wisconsin avg Federal benchmark
Total violations 202 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 None 38.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 510 467 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 (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 Adell Waterworks water safe to drink? ▼
Adell Waterworks (PWS ID: WI4600435) has 202 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 510 people using Groundwater sources.
How many people does Adell Waterworks serve? ▼
Adell Waterworks serves 510 people in Adell, Wisconsin. It is a Local-owned system using Groundwater water sources with 192 service connections.
What type of violations does Adell Waterworks have? ▼
Adell Waterworks has 202 total violations: 2 health-based violations (MCL exceedances or treatment failures), 185 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Adell Waterworks water? ▼
No PFAS testing data is available for Adell Waterworks under the EPA's UCMR5 monitoring program.
What water source does Adell Waterworks use? ▼
Adell 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.
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.