O'connor Tract Company-operative Water Company
EPA ID: CA4110019 · 2,789 people served · 2 ZIP codes
ZipCheckup's reading of EPA records for O'connor Tract Company-operative Water Company (CA4110019): no drinking-water violations recorded since 2021. O'connor Tract Company-operative Water Company's compliance file in EPA SDWIS lists no violations, whether health-based or monitoring and reporting, for a utility that supplies water to approximately 2,789 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for O'connor Tract Company-operative Water Company Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with O'connor Tract Company-operative Water Company have a median household income of $181,951 and about 87,353 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 78% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
O'connor Tract Company-operative Water Company's water is classified in EPA records as a groundwater source. 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.
Superfund Proximity Note: This service area ranks in the 70th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in California
System Overview
O'connor Tract Company-operative Water Company (EPA ID: CA4110019) is a community water system in California that serves approximately 2,789 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| Below the reporting limit | No | 2025-12-31 |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
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: Ask your water utility whether running cold water for 2 minutes is enough to flush your plumbing before drinking.
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.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for O'connor Tract Company-operative Water Company (CA4110019) on EPA.gov.
Frequently Asked Questions
Is O'connor Tract Company-operative Water Company water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for O'connor Tract Company-operative Water Company in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does O'connor Tract Company-operative Water Company serve?
O'connor Tract Company-operative Water Company serves approximately 2,789 people across 2 ZIP codes in California.
Where does O'connor Tract Company-operative Water Company get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). O'connor Tract Company-operative Water Company, CA. https://zipcheckup.com/water-system/ca4110019/
@misc{zipcheckup-water-system-ca4110019,
author = {{ZipCheckup}},
title = {{O'connor Tract Company-operative Water Company, CA}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ca4110019/}
}