What environmental databases are included?

This page aggregates data from eight EPA databases: Safe Drinking Water (SDWIS), Superfund/NPL sites, Toxic Release Inventory (TRI), Air Quality Index (AQI), Leaking Underground Storage Tanks (LUST), NPDES water discharge permits, RCRA hazardous waste, and Brownfields.

What does the Air Quality Index (AQI) mean?

AQI is measured on a scale from 0 to 500. Values under 50 are 'Good,' 51-100 is 'Moderate,' and above 100 is 'Unhealthy for Sensitive Groups.' AQI is measured at the county level since air quality monitoring stations are sparse. Your town shares its county's AQI reading.

What is a Superfund site?

A Superfund site is a location contaminated by hazardous waste that has been placed on the EPA's National Priorities List (NPL) for long-term cleanup. These sites pose serious risks to human health and the environment. Cleanup can take decades and cost hundreds of millions of dollars.

Norco, CA Water Quality, EPA Sites & Air Quality Data

CSALos Angeles-Long Beach MSARiverside-San Bernardino-Ontario#3/52 Income

Environmental Reporti

Water Systemsi

4community / 6 total

Water Violationsi

Active NPDESi

0/ 14 total

Drinking Wateri

SDWIS

Public water systems registered to serve this area. Community systems (CWS) provide water to residents year-round. Transient systems serve places like gas stations or restaurants. Violations indicate a system failed to meet federal drinking water standards.

Community Systemsi

Active Systemsi

Recent Violationsi

Community (4)

Transient (2)

Recent Violations (Last 5 Years)

NORCO, CITY OF

4 violationsLatest: 2025-07-01

EPA

Historical Violations (Over 5 Years Ago)

CALIFORNIA REHABILITATION CENTER - NORCO

5 violationsLatest: 2019-06-08

EPA

Wastewater & Stormwater Permits (NPDES)i

NPDES

Under the Clean Water Act, any facility that discharges wastewater or stormwater into rivers, lakes, or streams must hold an NPDES permit. "Effective" means the permit is currently active and the facility is authorized to discharge under its permit conditions.

Active Permitsi

Expired / Terminatedi

Nearest Hazardous Waste Disposal Facilitiesi

RCRA

These are the closest licensed facilities where hazardous waste (chemicals, solvents, industrial byproducts) can be legally treated, stored, or disposed of.

INDUSTRIAL WASTE UTILIZATION INCMONTCLAIR11.9 mi|EPA

Cleanup Sites (Brownfields)i

EPA Brownfields

Former industrial or commercial properties where contamination has been found. "Remedy Complete" means cleanup is finished. "Construction Complete" means cleanup infrastructure is built but monitoring continues. "In Progress" means the site is still being investigated or cleaned up.

WYLE LABS - NORCO FACILITY1841 HILLSIDE AVEIn Progress|EPA

NORCO DRUG1451 5TH STREETIn Progress|EPA

EV Charging & Alternative Fuel Stationsi

AFDC

Publicly listed alternative fuel and EV charging stations within the municipality. Data from the U.S. Department of Energy. "Open" stations are currently available for use; "Planned" stations are approved but not yet operational.

Total Stationsi

EV Stationsi

DC Fast Portsi

Blink NetworkChargePoint NetworkNon-Networked

76 - Norco3198 Hamner AveElectric2 DCNon-Networked

Hemborg Ford1900 Hamner AvenueElectric6 DCBlink Network

NORCO CITY HALL NORCO CH-12870 Clark AveElectric1 DCChargePoint Network

NORCO CITY HALL NORCO CH-22870 Clark AveElectric1 DCChargePoint Network