Del Rio Mutual
EPA ID: CA1900130 · 700 people served · 5 ZIP codes
Water monitoring for Del Rio Mutual: clean, five years, 700 residents.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Del Rio Mutual Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Del Rio Mutual serves a community with a median household income of $67,172 and an estimated 127,894 residents across its service area. Approximately 79% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 49% 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?
Del Rio Mutual'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 2% of homes in Los Angeles County, California rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
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
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 13 detections recorded. 4 exceed federal EPA limits (4 ppt for PFOA/PFOS). 2 exceed state limits.
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
Del Rio Mutual (EPA ID: CA1900130) is a community water system in California that serves approximately 700 people from groundwater sources.
This system provides water to 5 ZIP codes across 2 communities.
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: 2 ZIP codes confirmed via EPA Community Water System Service Area Boundaries v3 plus 3 additional ZIPs inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Del Rio Mutual (CA1900130) on EPA.gov.
Frequently Asked Questions
Is Del Rio Mutual water safe to drink?
Based on EPA records, Del Rio Mutual has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Del Rio Mutual serve?
Del Rio Mutual serves approximately 700 people across 5 ZIP codes in California.
Where does Del Rio Mutual get its water?
The primary water source is groundwater.