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HORTONVILLE WATER UTILITY

PWS ID: WI4450411 · HORTONVILLE, Wisconsin 54944-0099

HORTONVILLE WATER UTILITY serves 3,028 people in HORTONVILLE, Wisconsin using Groundwater water sources. It has 54 recorded EPA violations, including 2 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: HORTONVILLE WATER UTILITY

HORTONVILLE WATER UTILITY is a local-owned community water system that delivers drinking water to 3,028 residents in HORTONVILLE, Wisconsin (Outagamie County) through 1,137 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 54 total violations for this system , of which 2 (4%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 49 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 Revised Total Coliform Rule, recorded in 4 violations (MON). 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. HORTONVILLE WATER UTILITY's 54 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.

Population Served
3,028
Total Violations
54
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,137
County
Outagamie
School/Daycare
No
MCL Violations
0
Monitoring Violations
49
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Revised Total Coliform Rule MON 4 2025
LEAD AND COPPER RULE REVISIONS TT 2 2024
Coliform (TCR) MR 2 1994
cis-1,2-Dichloroethylene MR 2 1998
DICHLOROMETHANE MR 2 1998
o-Dichlorobenzene MR 2 1998
p-Dichlorobenzene MR 2 1998
Vinyl chloride MR 2 1998
1,1-Dichloroethylene MR 2 1998
trans-1,2-Dichloroethylene MR 2 1998
1,2-Dichloroethane MR 2 1998
1,1,1-Trichloroethane MR 2 1998
1,1,2-Trichloroethane MR 2 1998
CHLOROBENZENE MR 2 1998
Benzene MR 2 1998
Toluene MR 2 1998
1,2,4-Trichlorobenzene MR 2 1998
Carbon tetrachloride MR 2 1998
1,2-Dichloropropane MR 2 1998
Trichloroethylene MR 2 1998
Tetrachloroethylene MR 2 1998
Ethylbenzene MR 2 1998
Styrene MR 2 1998
Xylenes, Total MR 2 1998
Lead and Copper Rule MR 1 1994
Public Notice Other 1 2024

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 HORTONVILLE WATER UTILITY.

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 WI4450411 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 HORTONVILLE WATER UTILITY 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
2025 Revised Total Coliform Rule MON 4 SDWIS / WI4450411 / 8000
2024 LEAD AND COPPER RULE REVISIONS TT 2 SDWIS / WI4450411 / 5200
2024 Public Notice Other 1 SDWIS / WI4450411 / 7500
1998 cis-1,2-Dichloroethylene MR 2 SDWIS / WI4450411 / 2380
1998 DICHLOROMETHANE MR 2 SDWIS / WI4450411 / 2964
1998 o-Dichlorobenzene MR 2 SDWIS / WI4450411 / 2968
1998 p-Dichlorobenzene MR 2 SDWIS / WI4450411 / 2969
1998 Vinyl chloride MR 2 SDWIS / WI4450411 / 2976
1998 1,1-Dichloroethylene MR 2 SDWIS / WI4450411 / 2977
1998 trans-1,2-Dichloroethylene MR 2 SDWIS / WI4450411 / 2979
1998 1,2-Dichloroethane MR 2 SDWIS / WI4450411 / 2980
1998 1,1,1-Trichloroethane MR 2 SDWIS / WI4450411 / 2981
1998 1,1,2-Trichloroethane MR 2 SDWIS / WI4450411 / 2985
1998 CHLOROBENZENE MR 2 SDWIS / WI4450411 / 2989
1998 Benzene MR 2 SDWIS / WI4450411 / 2990

How HORTONVILLE WATER UTILITY Compares

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

Metric HORTONVILLE WATER UTILITY Wisconsin avg Federal benchmark
Total violations 54 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 3,028 467 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 HORTONVILLE WATER UTILITY water safe to drink? ▼
HORTONVILLE WATER UTILITY (PWS ID: WI4450411) has 54 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 3,028 people using Groundwater sources.
How many people does HORTONVILLE WATER UTILITY serve? ▼
HORTONVILLE WATER UTILITY serves 3,028 people in HORTONVILLE, Wisconsin. It is a Local-owned system using Groundwater water sources with 1,137 service connections.
What type of violations does HORTONVILLE WATER UTILITY have? ▼
HORTONVILLE WATER UTILITY has 54 total violations: 2 health-based violations (MCL exceedances or treatment failures), 49 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in HORTONVILLE WATER UTILITY water? ▼
No PFAS testing data is available for HORTONVILLE WATER UTILITY under the EPA's UCMR5 monitoring program.
What water source does HORTONVILLE WATER UTILITY use? ▼
HORTONVILLE WATER UTILITY 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. This data is provided for informational purposes only.

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

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