Cascade Waterworks
EPA ID: WI4600436 · 719 people served · 3 ZIP codes
ZipCheckup's reading of EPA SDWIS for Cascade Waterworks (WI4600436): 3 EPA violations in the last five years. On record: Cascade Waterworks, 3 violations, all resolved, 719 in service area.
Data: EPA SDWIS
Service Area Map
Coverage area for Cascade Waterworks Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Cascade Waterworks serves a community with a median household income of $91,406 and an estimated 20,468 residents across its service area. Approximately 68% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Cascade Waterworks's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Superfund Proximity Note: This service area ranks in the 63th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
Detected Contaminants
How Cascade Waterworks compares to EPA limits
What This Means For You
Radium-226 at 1 pCi/L (combined Radium-226 & 228 ≤ 5 pCi/L) exceeds the EPA maximum of pCi/L (combined Radium-226 & 228 ≤ 5 pCi/L). Bone cancer and leukemia (known carcinogen). Consider ion exchange (water softener) filtration.
Radium-228 at 1 pCi/L (combined Radium-226 & 228 ≤ 5 pCi/L) exceeds the EPA maximum of pCi/L (combined Radium-226 & 228 ≤ 5 pCi/L). Bone cancer and leukemia (known carcinogen). Consider ion exchange (water softener) filtration.
Radium-226 was detected in this water system. ion exchange (water softener) filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
Similar-sized systems in Wisconsin
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Cascade Waterworks (EPA ID: WI4600436) is a community water system in Wisconsin that serves approximately 719 people from groundwater sources.
This system provides water to 3 ZIP codes across 3 communities.
Violation History
Status breakdown for accepted records with record years 2021-2026: 0 resolved, 3 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| January 1, 2026 | Radium-228 | Non-health-based | Archived |
| January 1, 2026 | Gross Beta | Non-health-based | Archived |
| January 1, 2026 | Radium-226 | Non-health-based | Archived |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Gross Beta | Radionuclides | 1 | No |
| Radium-226 | Radionuclides | 1 | No |
| Radium-228 | Radionuclides | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0018 mg/L | No | N/A |
The accepted LCR snapshot contains 1 reported copper action-level exceedance record for this PWSID. The source does not provide a verified copper level for publication.
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by WI or modeled from parcel and building-footprint data.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Cascade Waterworks (WI4600436) on EPA.gov.
Frequently Asked Questions
Is Cascade Waterworks water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Cascade Waterworks; its 3 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Cascade Waterworks serve?
Cascade Waterworks serves approximately 719 people across 3 ZIP codes in Wisconsin.
Where does Cascade Waterworks get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Cascade Waterworks (WI): 3 EPA Violations. https://zipcheckup.com/water-system/wi4600436/
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title = {{Cascade Waterworks (WI): 3 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/wi4600436/}
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What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Cascade Waterworks (EPA ID: WI4600436) - request the latest Consumer Confidence Report or ask about specific contaminants.