Hillsdale Estates Homeowners Assn
EPA ID: ID4010218 · 800 people served · 32 ZIP codes
For the full five-year period covered by EPA monitoring, Hillsdale Estates Homeowners Assn has supplied tap water to 800 residents with no violations of any type on record.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Worsening · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 2 (2023) to 64 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Hillsdale Estates Homeowners Assn Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Hillsdale Estates Homeowners Assn serves a community with a median household income of $82,586 and an estimated 265,704 residents across its service area. Approximately 50% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Hillsdale Estates Homeowners Assn'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 1% of homes in Ada 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
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 7 detections recorded. 3 exceed federal EPA limits (4 ppt for PFOA/PFOS).
Comparable Water Systems
Similar-sized systems in Idaho
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
Hillsdale Estates Homeowners Assn (EPA ID: ID4010218) is a community water system in Idaho that serves approximately 800 people from groundwater sources.
This system provides water to 32 ZIP codes across 1 community.
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
This system serves 32 ZIP codes:
83701 · 83702 · 83703 · 83704 · 83705 83706 · 83707 · 83708 · 83709 · 83711 83712 · 83713 · 83715 · 83716 · 83717 83719 · 83720 · 83721 · 83722 · 83724 83725 · 83726 · 83727 · 83728 · 83729 83730 · 83731 · 83732 · 83735 · 83756 83757 · 83799
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Hillsdale Estates Homeowners Assn (ID4010218) on EPA.gov.
Frequently Asked Questions
Is Hillsdale Estates Homeowners Assn water safe to drink?
Based on EPA records, Hillsdale Estates Homeowners Assn has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Hillsdale Estates Homeowners Assn serve?
Hillsdale Estates Homeowners Assn serves approximately 800 people across 32 ZIP codes in Idaho.
Where does Hillsdale Estates Homeowners Assn 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: 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.