Horseshoe Bend Water Supply
EPA ID: ID4080024 · 750 people served · 5 ZIP codes
Where compliant utilities carry no open actions, Horseshoe Bend Water Supply shows 8 active EPA violations in the federal database for a service population of approximately 750.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Horseshoe Bend Water Supply Source: EPA SDWIS service area boundaries.
Service area boundary — Grade D
Service Area Demographics
The Horseshoe Bend Water Supply serves a community with a median household income of $75,347 and an estimated 3,011 residents across its service area.
🌊 Where Does Your Water Come From?
Horseshoe Bend Water Supply'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 Boise County, Idaho rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Infrastructure Risk
Detected Contaminants
How Horseshoe Bend Water Supply compares to EPA limits
What This Means For You
Contaminant 1011 at 4 mg/L exceeds the EPA maximum of mg/L.
Revised Total Coliform Rule at 2 presence exceeds the EPA maximum of presence.
Stage 2 DBP Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Chlorite was detected in this water system. ferrous sulfate reduction filtration can reduce exposure.
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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
HORSESHOE BEND WATER SUPPLY (EPA ID: ID4080024) is a community water system in Idaho that serves approximately 750 people from surface water sources.
This system provides water to 5 ZIP codes across 5 communities.
Average Home Safety Score: D (42/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| July 2, 2025 | Stage 2 DBP Rule | Monitoring | Unresolved |
| July 1, 2025 | Contaminant 1011 | Monitoring | Unresolved |
| April 1, 2025 | Contaminant 1011 | Monitoring | Unresolved |
| November 1, 2024 | Chlorite | Monitoring | Unresolved |
| April 1, 2024 | Contaminant 1011 | Monitoring | Unresolved |
| October 1, 2023 | Revised Total Coliform Rule | Monitoring | Unresolved |
| January 1, 2023 | Contaminant 1011 | Monitoring | Unresolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Contaminant 1011 | Other Violation | 4 | No |
| Revised Total Coliform Rule | Microbiological | 2 | No |
| Chlorite | Disinfection Byproducts | 1 | No |
| Stage 2 DBP Rule | Treatment Failure | 1 | No |
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 83629 | 0.002 mg/L | No | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
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 Horseshoe Bend Water Supply (ID4080024) on EPA.gov.
Frequently Asked Questions
Is Horseshoe Bend Water Supply water safe to drink?
Horseshoe Bend Water Supply has only monitoring/reporting violations, which are procedural in nature. The system meets federal health-based standards.
How many people does Horseshoe Bend Water Supply serve?
Horseshoe Bend Water Supply serves approximately 750 people across 5 ZIP codes in Idaho.
Where does Horseshoe Bend Water Supply 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.
Frequently Asked Questions
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Horseshoe Bend Water Supply (EPA ID: ID4080024) — request the latest Consumer Confidence Report or ask about specific contaminants.