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.

Hermosa Beach, CA Water Quality, EPA Sites & Air Quality Data

Environmental Reporti

Air Qualityi

77Moderate

Water Systemsi

Water Compliancei

Clean

Active NPDESi

1/ 3 total

Air Quality — Los Angeles County (2025)i

AQS

The Air Quality Index measures how clean or polluted the air is on a given day. AQI is reported at the county level. A score of 0–50 is considered good; 51–100 is moderate; above 100 may be unhealthy for sensitive groups.

Moderate

Median AQI

050100150200300

max 201

PM2.5 Daysi

Ozone Daysi

172

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

Transient (1)

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

WEST COAST BARRIER PROJECT, UNIT 5VALLEY DR, HERMOSA BEACH & PROSPECTMinor Discharge|EPA

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.

RHO-CHEM, LLCINGLEWOOD6.3 mi|EPA

TESORO CARSON REFINERYCARSON10.1 mi|EPA

DEMENNO/KERDOONCOMPTON10.9 mi|EPA

CROSBY & OVERTON PLANT NUMBER 1LONG BEACH12.3 mi|EPA

SAFETY-KLEEN (LOS ANGELES) ILOS ANGELES12.6 mi|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

Level 2 Portsi

DC Fast Portsi

EPIC_CHARGINGEV ConnectEVGATEWAYElectrify AmericaLOOPTURNONGREENTeslaeVgo Network

City of Hermosa Beach1301 Hermosa AveElectric8 L2EV Connect

City of Hermosa Beach1315 Valley DrElectric14 L2TURNONGREEN

HERMOSA BEACH CALIFORNIA301 PIER AVENUEElectric8 L2EVGATEWAY

Hermosa Beach City - Employee Parking552 11th PlElectric20 L2EPIC_CHARGING

Lazy Acres - Hermosa Beach2510 Pacific Coast HighwayElectric2 DCeVgo Network

Location Alpha123 Main stElectric1 L2LOOP

Plaza Hermosa - Tesla Supercharger710 16th St.Electric20 DCTesla

Regency Plaza Hermosa (Hermosa Beach, CA)1400 Ardmore AveElectric6 DCElectrify America