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Transient Non-Community Water System · PWS WI7340132

Wolffs River Inn

Elcho, Wisconsin 54428 - drinking water served from groundwater sources to 157 people, tracked in EPA SDWIS and UCMR5.

157
People served
177
EPA violations
41
Health-based
Untested
UCMR5 result

The verdict

EPA records 177 drinking-water violations at Wolffs River Inn, 23% of them health-based - above the Wisconsin per-system average.

177
Total EPA violations on record
23%
Health-based (MCL / treatment failure)
157
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Wolffs River Inn

Wolffs River Inn is a private-owned transient non-community water system that delivers drinking water to 157 residents in Elcho, Wisconsin (Langlade County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 177 total violations for this system , of which 41 (23%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 119 monitoring and reporting violations are on file. The most recent violation on record dates to 2019.

The most frequently cited contaminant at this system is Nitrate, recorded in 57 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%).

Wolffs River Inn's 177 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
157
Total Violations
177
Health-Based Violations
41
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
Private
Connections
1
County
Langlade
School/Daycare
No
MCL Violations
13
Monitoring Violations
119
Treatment Tech Violations
28

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MR 57 2016
Coliform (TCR) MR 35 2013
Groundwater Rule TT 28 2013
Revised Total Coliform Rule MON 24 2019
Public Notice Other 17 2011
Nitrate-Nitrite MCL 13 2007
Nitrite MR 3 1995

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 Wolffs River Inn.

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 WI7340132 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 Wolffs River Inn 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
2019 Revised Total Coliform Rule MON 24 SDWIS / WI7340132 / 8000
2016 Nitrate MR 57 SDWIS / WI7340132 / 1040
2013 Coliform (TCR) MR 35 SDWIS / WI7340132 / 3100
2013 Groundwater Rule TT 28 SDWIS / WI7340132 / 0700
2011 Public Notice Other 17 SDWIS / WI7340132 / 7500
2007 Nitrate-Nitrite MCL 13 SDWIS / WI7340132 / 1038
1995 Nitrite MR 3 SDWIS / WI7340132 / 1041

How Wolffs River Inn Compares

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

Metric Wolffs River Inn Wisconsin avg Federal benchmark
Total violations 177 26 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 41 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 157 467 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 Wolffs River Inn water safe to drink? ▼
Wolffs River Inn (PWS ID: WI7340132) has 177 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 157 people using Groundwater sources.
How many people does Wolffs River Inn serve? ▼
Wolffs River Inn serves 157 people in Elcho, Wisconsin. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does Wolffs River Inn have? ▼
Wolffs River Inn has 177 total violations: 41 health-based violations (MCL exceedances or treatment failures), 119 monitoring/reporting violations, and 28 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Wolffs River Inn water? ▼
No PFAS testing data is available for Wolffs River Inn under the EPA's UCMR5 monitoring program.
What water source does Wolffs River Inn use? ▼
Wolffs River Inn uses Groundwater as its primary water source. It is classified as a Transient Non-Community Water System, serving transient populations.
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.