W Central Rwa - Denison Subsys
EPA ID: IA2424701 · 2,428 people served · 2 ZIP codes
Zero violations in five consecutive years of EPA monitoring — W Central Rwa - Denison Subsys 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 2,428 residents.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for W Central Rwa - Denison Subsys Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The W Central Rwa - Denison Subsys serves a community with a median household income of $69,927 and an estimated 11,889 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?
W Central Rwa - Denison Subsys'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.
About 2% of homes in Crawford 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
W Central Rwa - Denison Subsys (EPA ID: IA2424701) is a community water system in Iowa that serves approximately 2,428 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 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
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for W Central Rwa - Denison Subsys (IA2424701) on EPA.gov.
Frequently Asked Questions
Is W Central Rwa - Denison Subsys water safe to drink?
Based on EPA records, W Central Rwa - Denison Subsys has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does W Central Rwa - Denison Subsys serve?
W Central Rwa - Denison Subsys serves approximately 2,428 people across 2 ZIP codes in Iowa.
Where does W Central Rwa - Denison Subsys get its water?
The primary water source is groundwater.
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.