Central Water System
EPA ID: IA3000099 · 25 people served · 1 ZIP code
Water monitoring for Central Water System: clean, five years, 25 residents.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Central Water System Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Central Water System serves a community with a median household income of $57,569 and an estimated 892 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?
Central Water System'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 2% of homes in Dickinson 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
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 1 detection recorded.
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
Central Water System (EPA ID: IA3000099) is a community water system in Iowa that serves approximately 25 people from surface water sources.
This system serves ZIP code 51355 in Okoboji.
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
- 51355 — Okoboji
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Central Water System (IA3000099) on EPA.gov.
Frequently Asked Questions
Is Central Water System water safe to drink?
Based on EPA records, Central Water System has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Central Water System serve?
Central Water System serves approximately 25 people across 1 ZIP code in Iowa.
Where does Central Water System get its water?
The primary water source is surface water.