Agate Bay Water Company
EPA ID: CA3110012 · 2,500 people served · 1 ZIP code
Over five tracked years, Agate Bay Water Company has stayed completely violation-free for its 2,500 residents.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Agate Bay Water Company Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Agate Bay Water Company serves a community with a median household income of $185,104 and an estimated 1,099 residents across its service area. Approximately 76% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Agate Bay Water Company'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 Placer County, California 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 California
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
Agate Bay Water Company (EPA ID: CA3110012) is a community water system in California that serves approximately 2,500 people from surface water sources.
This system serves ZIP code 96140 in Carnelian Bay.
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 CA or modeled from parcel and building-footprint data.
- 96140 — Carnelian Bay
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Agate Bay Water Company (CA3110012) on EPA.gov.
Frequently Asked Questions
Is Agate Bay Water Company water safe to drink?
Based on EPA records, Agate Bay Water Company has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Agate Bay Water Company serve?
Agate Bay Water Company serves approximately 2,500 people across 1 ZIP code in California.
Where does Agate Bay Water Company get its water?
The primary water source is surface water.