Earlham Municipal Waterworks
EPA ID: IA6115097 · 1,446 people served · 1 ZIP code
Although compliance varies widely among water utilities nationally, Earlham Municipal Waterworks stands out with zero EPA violations over five consecutive monitoring years, delivering safe tap water to 1,446 residents and showing no enforcement activity across the entire reporting span.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Earlham Municipal Waterworks Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Earlham Municipal Waterworks serves a community with a median household income of $111,518 and an estimated 2,787 residents across its service area. Approximately 57% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Earlham Municipal Waterworks's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
About 1% of homes in Madison County, Iowa rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
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
Earlham Municipal Waterworks (EPA ID: IA6115097) is a community water system in Iowa that serves approximately 1,446 people from surface water sources.
This system serves ZIP code 50072 in Earlham.
Violation History
Lead & Copper
No Lead and Copper Rule sampling data available for this water system.
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
- 50072 — Earlham
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Earlham Municipal Waterworks (IA6115097) on EPA.gov.
Frequently Asked Questions
Is Earlham Municipal Waterworks water safe to drink?
Based on EPA records, Earlham Municipal Waterworks has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Earlham Municipal Waterworks serve?
Earlham Municipal Waterworks serves approximately 1,446 people across 1 ZIP code in Iowa.
Where does Earlham Municipal Waterworks get its water?
The primary water source is surface water.
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.