West Okoboji
EPA ID: IA3090081 · 308 people served · 4 ZIP codes
Federal monitoring records confirm West Okoboji has operated without any EPA violations for the full five-year window — covering every contaminant category and reporting cycle across a service area of approximately 308 residents, with no gaps in the compliance record.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for West Okoboji Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The West Okoboji serves a community with a median household income of $72,546 and an estimated 15,363 residents across its service area. Approximately 56% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
West Okoboji'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. 4 detections 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
West Okoboji (EPA ID: IA3090081) is a community water system in Iowa that serves approximately 308 people from surface water sources.
This system provides water to 4 ZIP codes across 4 communities.
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
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 West Okoboji (IA3090081) on EPA.gov.
Frequently Asked Questions
Is West Okoboji water safe to drink?
Based on EPA records, West Okoboji has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does West Okoboji serve?
West Okoboji serves approximately 308 people across 4 ZIP codes in Iowa.
Where does West Okoboji 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:
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.