Arbuckle Public Utility District
EPA ID: CA0610001 · 2,778 people served · 1 ZIP code
Zero violations in five consecutive years of EPA monitoring — Arbuckle Public Utility District 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 2,778 residents.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Arbuckle Public Utility District Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Arbuckle Public Utility District serves a community with a median household income of $80,893 and an estimated 5,048 residents across its service area. Approximately 51% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 60% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
Arbuckle Public Utility District'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 Colusa County, California rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Wastewater Proximity Note: This service area ranks in the 60th percentile nationally for proximity to wastewater discharge points.
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
Arbuckle Public Utility District (EPA ID: CA0610001) is a community water system in California that serves approximately 2,778 people from groundwater sources.
This system serves ZIP code 95912 in Arbuckle.
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
- 95912 — Arbuckle
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Arbuckle Public Utility District (CA0610001) on EPA.gov.
Frequently Asked Questions
Is Arbuckle Public Utility District water safe to drink?
Based on EPA records, Arbuckle Public Utility District has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Arbuckle Public Utility District serve?
Arbuckle Public Utility District serves approximately 2,778 people across 1 ZIP code in California.
Where does Arbuckle Public Utility District 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.