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Public Water System
SLOCSA #10A - CAYUCOS
PWSID CA4010901 · California · 1,200 people served
A
ExcellentSLOCSA #10A - CAYUCOS is an EPA-regulated public water system in California (PWSID CA4010901). It serves an estimated 1,200 residents — a rural community of customers — across 1 community across 1 ZIP code.
SLOCSA #10A - CAYUCOS has maintained full EPA Safe Drinking Water Act compliance over the most recent five-year reporting window. No health-based Maximum Contaminant Level (MCL) exceedances are on record. The grade of A reflects this clean compliance history.
Service Area
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Centered on the averaged ZIP-code centroid of 1 ZIP served.
Population
1,200
Cities
1
ZIPs
1
Violations
0
EPA Health-Based Violations
Health-based Maximum Contaminant Level (MCL) violations on file for SLOCSA #10A - CAYUCOS over the past five years of EPA SDWIS reporting.
✅
No health-based violations in the last 5 years.
SLOCSA #10A - CAYUCOS's water systems have met EPA health-based Maximum Contaminant Level (MCL) requirements throughout the EPA reporting window. This does not mean zero detection of regulated contaminants — it means all measured concentrations remained below their federal action levels.
Cities Served by SLOCSA #10A - CAYUCOS
ZIP Codes Served
About this system
EPA records this system as PWSID CA4010901. Data reflects the most recent EPA SDWIS publication as of 2026-05-18. Public Water System Identifiers (PWSIDs) are assigned by the EPA's Safe Drinking Water Act program to track every regulated water utility in the United States. The first two letters typically indicate the state primacy agency. For real-time water quality information, contact SLOCSA #10A - CAYUCOS directly or review their annual Consumer Confidence Report (CCR).
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