Randolph Water Department
EPA ID: WI1110125 · 1,800 people served · 3 ZIP codes
ZipCheckup's reading of EPA SDWIS for Randolph Water Department (WI1110125): 5 past health-based violations, since resolved. Five years tracked: Randolph Water Department had 8 violations, all cleared, 1,800 served.
Data: EPA SDWIS
Service Area Map
Coverage area for Randolph Water Department Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Randolph Water Department serves a community with a median household income of $84,722 and an estimated 35,150 residents across its service area. Approximately 71% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Randolph Water Department'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.
Infrastructure Risk
Detected Contaminants
How Randolph Water Department compares to EPA limits
What This Means For You
Gross Alpha at 1 pCi/L exceeds the EPA maximum of pCi/L. Increased cancer risk from radioactive particles. Consider reverse osmosis filtration.
Stage 1 DBP Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Consumer Confidence Report Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Gross Alpha was detected in this water system. reverse osmosis filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
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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
Randolph Water Department (EPA ID: WI1110125) is a community water system in Wisconsin that serves approximately 1,800 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: 2 resolved, 6 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 | Gross Alpha | Non-health-based | Archived |
| April 1, 2025 | Gross Beta | Health-based | Archived |
| January 1, 2025 | Gross Beta | Health-based | Archived |
| October 1, 2024 | Gross Beta | Health-based | Archived |
| July 1, 2024 | Gross Beta | Health-based | Archived |
| April 1, 2024 | Gross Beta | Health-based | Archived |
| January 1, 2024 | Stage 1 DBP Rule | Non-health-based | Resolved |
| May 1, 2023 | Consumer Confidence Report Rule | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Gross Beta | Radionuclides | 5 | Yes |
| Gross Alpha | Radionuclides | 1 | No |
| Stage 1 DBP Rule | Treatment Failure | 1 | No |
| Consumer Confidence Report Rule | Reporting Failure | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0013 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
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 Randolph Water Department (WI1110125) on EPA.gov.
Frequently Asked Questions
Is Randolph Water Department water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Randolph Water Department; its 8 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Randolph Water Department serve?
Randolph Water Department serves approximately 1,800 people across 3 ZIP codes in Wisconsin.
Where does Randolph Water Department get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Randolph Water Department (WI): 5 Health Violations. https://zipcheckup.com/water-system/wi1110125/
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title = {{Randolph Water Department (WI): 5 Health Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/wi1110125/}
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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
Randolph Water Department (EPA ID: WI1110125) - request the latest Consumer Confidence Report or ask about specific contaminants.