Slocsa #10a - Cayucos
EPA ID: CA4010901 · 1,200 people served · 2 ZIP codes
ZipCheckup's reading of EPA records for Slocsa #10a - Cayucos (CA4010901): no drinking-water violations recorded since 2021. Although compliance varies widely among water utilities nationally, the SDWIS file for Slocsa #10a - Cayucos lists no EPA violations for this supplier, whose service area covers 1,200 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Slocsa #10a - Cayucos Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Slocsa #10a - Cayucos have a median household income of $89,259 and about 14,593 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 73% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Slocsa #10a - Cayucos'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.
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
Slocsa #10a - Cayucos (EPA ID: CA4010901) is a community water system in California that serves approximately 1,200 people from surface water 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 | 2023-12-31 |
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 Slocsa #10a - Cayucos (CA4010901) on EPA.gov.
Frequently Asked Questions
Is Slocsa #10a - Cayucos water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Slocsa #10a - Cayucos 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 Slocsa #10a - Cayucos serve?
Slocsa #10a - Cayucos serves approximately 1,200 people across 2 ZIP codes in California.
Where does Slocsa #10a - Cayucos get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Slocsa #10a - Cayucos Water Quality Report, CA. https://zipcheckup.com/water-system/ca4010901/
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author = {{ZipCheckup}},
title = {{Slocsa #10a - Cayucos Water Quality Report, CA}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ca4010901/}
}