Siete Robles Mutual Water Company
EPA ID: CA5601119 · 323 people served · 2 ZIP codes
In the most recent five-year monitoring window, Siete Robles Mutual Water Company posted zero EPA violations serving 323 residents.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Stable · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 5 (2023) to 2 (2024). Violation counts have remained relatively steady.
Service Area Map
Coverage area for Siete Robles Mutual Water Company Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Siete Robles Mutual Water Company serves a community with a median household income of $82,298 and an estimated 21,559 residents across its service area. Approximately 81% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Siete Robles Mutual 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 Ventura 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. Surface water sources near wastewater outfalls may face additional treatment challenges.
Superfund Proximity Note: This service area ranks in the 60th percentile nationally for proximity to Superfund (NPL) sites.
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
Siete Robles Mutual Water Company (EPA ID: CA5601119) is a community water system in California that serves approximately 323 people from surface water sources.
This system provides water to 2 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
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Siete Robles Mutual Water Company (CA5601119) on EPA.gov.
Frequently Asked Questions
Is Siete Robles Mutual Water Company water safe to drink?
Based on EPA records, Siete Robles Mutual Water Company has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Siete Robles Mutual Water Company serve?
Siete Robles Mutual Water Company serves approximately 323 people across 2 ZIP codes in California.
Where does Siete Robles Mutual Water Company get its water?
The primary water source is surface water.