Cal American Wc - Rio Plaza
EPA ID: CA5610010 · 1,709 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Cal American Wc - Rio Plaza (CA5610010): no EPA violations recorded in the last five years. Throughout five consecutive years of federal water monitoring, Cal American Wc - Rio Plaza recorded zero violations - solid performance for a utility serving 1,709 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Cal American Wc - Rio Plaza Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Cal American Wc - Rio Plaza serves a community with a median household income of $100,482 and an estimated 47,938 residents across its service area. Approximately 52% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Cal American Wc - Rio Plaza'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.
Wastewater Proximity Note: This service area ranks in the 60th percentile nationally for proximity to wastewater discharge points.
Superfund Proximity Note: This service area ranks in the 60th 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
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
Cal American Wc - Rio Plaza (EPA ID: CA5610010) is a community water system in California that serves approximately 1,709 people from groundwater sources.
This system serves ZIP code 93036 in Oxnard.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0 mg/L | No | N/A |
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: 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.
- 93036 - Oxnard
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Cal American Wc - Rio Plaza (CA5610010) on EPA.gov.
Frequently Asked Questions
Is Cal American Wc - Rio Plaza water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Cal American Wc - Rio Plaza 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 Cal American Wc - Rio Plaza serve?
Cal American Wc - Rio Plaza serves approximately 1,709 people across 1 ZIP code in California.
Where does Cal American Wc - Rio Plaza get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Cal American Wc - Rio Plaza Water Quality Report, CA. https://zipcheckup.com/water-system/ca5610010/
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author = {{ZipCheckup}},
title = {{Cal American Wc - Rio Plaza Water Quality Report, CA}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ca5610010/}
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