Lake Mills Municipal Water Department-south
EPA ID: IA9545044 · 2,158 people served · 4 ZIP codes
ZipCheckup's reading of EPA SDWIS for Lake Mills Municipal Water Department-south (IA9545044): no EPA violations recorded in the last five years. Zero violations in five consecutive years of EPA monitoring - Lake Mills Municipal Water Department-south has held a clean track record across every reporting cycle in that span, with no enforcement activity of any kind on file for the full service population of 2,158 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Lake Mills Municipal Water Department-south Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Lake Mills Municipal Water Department-south serves a community with a median household income of $70,000 and an estimated 9,503 residents across its service area. Approximately 85% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Lake Mills Municipal Water Department-south'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
Comparable Water Systems
Similar-sized systems in Iowa
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
Lake Mills Municipal Water Department-south (EPA ID: IA9545044) is a community water system in Iowa that serves approximately 2,158 people from groundwater sources.
This system provides water to 4 ZIP codes across 4 communities.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.003 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 IA 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 Lake Mills Municipal Water Department-south (IA9545044) on EPA.gov.
Frequently Asked Questions
Is Lake Mills Municipal Water Department-south water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Lake Mills Municipal Water Department-south in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Lake Mills Municipal Water Department-south serve?
Lake Mills Municipal Water Department-south serves approximately 2,158 people across 4 ZIP codes in Iowa.
Where does Lake Mills Municipal Water Department-south get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Lake Mills Municipal Water Department-south Water Report, IA. https://zipcheckup.com/water-system/ia9545044/
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title = {{Lake Mills Municipal Water Department-south Water Report, IA}},
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url = {https://zipcheckup.com/water-system/ia9545044/}
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