Water Quality Technical Report — DELLS CLUB CONDO ASSOC 3, WI

Summary

DELLS CLUB CONDO ASSOC 3 serves approximately 75 people in Wisconsin Dells, Wisconsin. Based on contaminant analyses from WQP, EPA ECHO, the most recent monitoring readings are within federal EPA standards (MCL), but this system has active MCL violations on record for 4 contaminants. 2 contaminants exceed health-based guidelines. The most significant finding is Copper (90th Percentile) at 4.55 mg/L, which is 15.2x the health guideline. Data is drawn from source-level compliance monitoring and covers 2002 through 2025. Results reflect conditions at the point of collection (wells, treatment plants), not necessarily at the tap.

Key Findings

• Lead (90th percentile): Below the legal limit but above health-based guidelines (2025 reading). From your water system's testing.
• Copper (90th percentile): Your utility reported 4.55 mg/L, above the EPA action level of 1.3 mg/L (2020 reading).
• Arsenic (nearby groundwater): Below the legal limit but above health-based guidelines (2023 reading). From regional groundwater monitoring, not your tap.

EPA Violation Records

The following violation records exist in EPA's federal compliance database for this system. We do not have corresponding monitoring data for these contaminants in our database.

Exceeds Health Guidelines

These contaminants were detected below the EPA legal limit but above a health-based guideline from a public health agency (CalEPA OEHHA, WHO, or similar). Health guidelines are non-enforceable research-backed targets that are often stricter than the legal limit.

PFAS

No PFAS testing data is available for this system in the government data sources we access (EPA UCMR5, Wisconsin DNR). This does not mean PFAS is absent — it means this system has not been tested for PFAS in our data sources, or results have not yet been published.

Microplastics

Microplastics have been documented in raw and treated drinking water worldwide, but federal regulations do not currently require testing — so there is no data specific to this system. Standardized methods and rules are in progress.

Other Regulated Contaminants

These contaminants were detected within federal standards (EPA Maximum Contaminant Levels). They are presented for transparency.

Other Potential Contaminants

Not detecting a contaminant does not prove it isn't present — it only means the laboratory didn't test for it, or tested below the reporting limit. Many substances of emerging concern are not routinely monitored because federal regulations haven't caught up to the science.

• Pharmaceuticals and personal care products (PPCPs) — USGS Emerging Contaminants program · Kolpin et al. (USGS FS-2006-3013)
• Unregulated PFAS compounds — EPA PFAS rule (2024) · EPA UCMR monitoring
• 1,4-Dioxane — EPA technical fact sheet
• Hexavalent chromium (Cr-VI) — EPA chromium in drinking water · California OEHHA PHG
• Unregulated disinfection byproducts — EPA Stage 1 / Stage 2 DBPR
• Endocrine disruptors — EPA Endocrine Disruptor Screening Program

Compliance History

Formal EPA and DNR compliance events on record for this utility. Includes all events from the last 10 years plus any unresolved violations regardless of age. Health-based violations are legally enforceable thresholds that were exceeded; procedural events are monitoring or reporting lapses that don't indicate contamination by themselves.

+ 7 older events in the 10-year window not shown

Source: EPA ECHO enforcement and violation records (via Envirofacts / SDWIS Federal Reports).

Action Steps

This system has contaminants above a legal limit or multiple health guidelines. The following steps are concrete things a homeowner or facility operator can do right now — starting with the most important non-commercial options.

1. Request the utility's Consumer Confidence Report (CCR). The CCR compares utility-reported readings to the federal legal limits and is independent of this site. Utilities must make it available on request. EPA CCR search.
2. Get a certified tap test. A state-certified laboratory can test your tap for a specific contaminant or a broader panel. A single-contaminant test runs in the low tens of dollars; a comprehensive panel runs several hundred. Ask for the EPA-certified lab list from Wisconsin DNR. Wisconsin DNR lab certification.
3. Consider point-of-use filtration. For the specific contaminants detected in this system, the exceedance sections above list the technology categories (reverse osmosis, granular activated carbon, ion exchange, etc.) that target each class. Those are category-level descriptions — the right choice depends on the contaminant profile, budget, and installation constraints.
4. Contact the utility directly. Ask about the specific contaminants you're concerned about and request the most recent sampling data. The EPA SDWIS portal lists utility contact details. EPA SDWIS system lookup.
5. Check the utility's lead service line inventory. Under the Lead and Copper Rule Revisions (LCRR, 2024), utilities must publish a service line inventory identifying lines flagged as lead, galvanized-requiring-replacement, or unknown material. If your service line is flagged or unknown, the utility is required to replace it on a scheduled timeline. EPA Lead and Copper Rule Improvements.

Frequently Asked Questions

Data Sources and Methodology

Water Quality Portal

Cooperative service by USGS, EPA, and NWQMC. Regional groundwater monitoring data from nearby wells — may not reflect this specific utility.

Water Quality Portal →

EPA ECHO Lead & Copper Rule

90th percentile measurements from EPA Enforcement and Compliance History Online. Based on tap-level sampling at high-risk sites.

ECHO facility report →

Definitions

Maximum Contaminant Level (MCL)

The highest level of a contaminant allowed in drinking water, set by the EPA. MCLs are legally enforceable standards.

Maximum Contaminant Level Goal (MCLG)

The level of a contaminant below which there is no known or expected health risk. MCLGs are non-enforceable public health goals.

Action Level

The concentration of a contaminant which, if exceeded, triggers treatment or other requirements. Used for lead and copper.

Health Advisory

Non-enforceable guidelines set by the EPA providing information on contaminants that can cause health effects at certain exposure levels.

Total Dissolved Solids (TDS)

A measure of all dissolved minerals, salts, and organic matter in water, expressed in mg/L (ppm). Not a health hazard but affects taste and indicates overall mineral content.

PFAS

Per- and polyfluoroalkyl substances. A group of manufactured chemicals that do not break down in the environment. The EPA set enforceable limits for several PFAS compounds in 2024.

Non-Detect (ND)

The contaminant was tested for but not found above the laboratory's reporting limit. This does not mean zero — it means below the detection threshold.

VOCs (Volatile Organic Compounds)

Chemicals that evaporate easily and can contaminate groundwater. Sources include gasoline, industrial solvents, and dry cleaning fluids. Some are regulated by the EPA; many are monitored but not yet regulated.

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Cite This Report

WaterAdvantage. "Water Quality Technical Report: Wisconsin Dells, WI (WI7010425)." WaterAdvantage.org, 2026-04-14. https://www.wateradvantage.org/report/WI7010425/detail