City of Norco
Surface water · Local · 2870 Clark Ave
High Concern
Elevated contaminant levels detected. Filtration recommended.
Utility Overview
Population Served
25,068
Source Type
Surface water
Ownership
Local
PWSID
CA3310025
Detected Contaminants
CCR data ingestion in progress
Contaminant detection levels from Consumer Confidence Reports are being parsed and linked to utilities. Check back soon, or view the official report directly from the EPA links below.
View on EPA ECHOViolation History
Sourced from EPA SDWIS. Health-based violations mean a contaminant exceeded the legal limit. Monitoring/Reporting violations mean required test results were not submitted to EPA — not necessarily that the water is unsafe.
MCL Violation — Haloacetic Acids (HAA5)
OpenMR
ResolvedMR
ResolvedMR
ResolvedMR
ResolvedMR
ResolvedMR
ResolvedMR
ResolvedMR — Fecal Coliform
ResolvedMR
ResolvedRelated Pages
Data Sources & Provenance
All data on this page is sourced from official U.S. government or public datasets.
At a Glance
Service area match is likely but not guaranteed. Your water bill is the most reliable way to confirm your provider.
Data Sources