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.

Apple Valley, CA Water Quality, EPA Sites & Air Quality Data

CSALos Angeles-Long Beach MSARiverside-San Bernardino-Ontario#21/52 Population

Environmental Reporti

Water Systemsi

23community / 40 total

Water Violationsi

Active NPDESi

1/ 21 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 (23)

Transient (15)

Non-Transient (2)

Recent Violations (Last 5 Years)

APPLE VALLEY FOOTHILL CWD

7 violationsLatest: 2024-10-17

EPA

APPLE VALLEY HEIGHTS CWD

5 violationsLatest: 2024-10-17

EPA

NAVAJO MWC

3 violationsLatest: 2022-01-01

EPA

JUNIPER RIVIERA CWD

13 violationsLatest: 2024-10-17

EPA

THUNDERBIRD CWD

7 violationsLatest: 2025-01-01

EPA

BEAR VALLEY MHP

4 violationsLatest: 2022-01-01

EPA

RANCHERITOS #2

2 violationsLatest: 2025-07-01

EPA

GOLDEN STATE WATER CO - WRIGHTWOOD

1 violationLatest: 2022-01-01

EPA

Historical Violations (Over 5 Years Ago)

APPLE VALLEY VIEW MWC

7 violationsLatest: 2017-04-01

EPA

MARIANA RANCHOS CWD

4 violationsLatest: 2012-06-01

EPA

GOLDEN STATE WATER CO - BARSTOW

1 violationLatest: 2009-11-01

EPA

GOLDEN STATE WATER CO - MORONGO DEL SUR

2 violationsLatest: 2010-07-01

EPA

GOLDEN STATE WATER CO - LUCERNE

1 violationLatest: 1996-04-01

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

US V-1 MINECHAPAROSA DRIVEIndustrial Stormwater|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.

APPLE VALLEY DRUM SITE25799 PAHUTE RDIn Progress|EPA

SAN BERNARDINO CTY LDFILL - APPLE VALLEYSEC 29, T.5N, R.2WIn Progress|EPA