Callahan Wtp
EPA ID: FL2450146 · 1,730 people served · 1 ZIP code
Zero violations in five consecutive years of EPA monitoring — Callahan Wtp 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 1,730 residents.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Callahan Wtp Source: EPA SDWIS service area boundaries.
Service area boundary — Grade A
Service Area Demographics
The Callahan Wtp serves a community with a median household income of $77,121 and an estimated 15,716 residents across its service area.
💧 Where Does Your Water Come From?
Callahan Wtp'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 0% of homes in Nassau County, Florida 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 Florida
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
Callahan Wtp (EPA ID: FL2450146) is a community water system in Florida that serves approximately 1,730 people from groundwater sources.
This system serves ZIP code 32011 in Callahan.
Average Home Safety Score: A (85/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 32011 | 0.0025 mg/L | No | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 3 (Low Risk)
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 FL or modeled from parcel and building-footprint data.
- 32011 — Callahan
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Callahan Wtp (FL2450146) on EPA.gov.
Frequently Asked Questions
Is Callahan Wtp water safe to drink?
Based on EPA records, Callahan Wtp has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Callahan Wtp serve?
Callahan Wtp serves approximately 1,730 people across 1 ZIP code in Florida.
Where does Callahan Wtp 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:
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: FDEP PWS Lead Service Line Inventories (LSLI) · Submitted 2024
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.