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.

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

CSASan Jose-San Francisco-Oakland MSASan Francisco-Oakland-Fremont#16/65 Population

Environmental Reporti

Water Systemsi

6community / 17 total

Water Violationsi

TRI Facilitiesi

Active NPDESi

4/ 29 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

Transient (8)

Community (6)

Non-Transient (3)

Recent Violations (Last 5 Years)

CASTLEWOOD DOMESTIC WATER SYSTEM

1 violationLatest: 2024-10-17

EPA

Historical Violations (Over 5 Years Ago)

SAHARA MOBILE COURT

7 violationsLatest: 2016-07-01

EPA

Toxic Release Inventory (TRI)i

TRI

Factories, refineries, and other industrial facilities that use or store hazardous chemicals are required to report their releases annually to the EPA. Being listed here does not mean a violation occurred — it means the facility is transparently tracking its chemical usage.

Reporting Facilitiesi

With Chemical Datai

OLDCASTLE PRECAST INC3786 VALLEY AVE5 chemicals|TRI

CENTRAL CONCRETE SUPPLY CO INC - PLEASANTON1645 STANLEY BLVD3 chemicals|TRI

VULCAN MATERIALS COMPANY52 EL CHARRO ROAD3 chemicals|TRI

CREANOVA INC5555 SUNOL BLVD2 chemicals|TRI

APPLIED BIOSYSTEMS LLC6055 SUNOL BLVD2 chemicals|TRI

CEMEX PLEASANTON READY-MIX1544 STANLEY BOULEVARD UNIT B2 chemicals|TRI

RIGHT AWAY REDI-MIX - PLEASANTON FACILITY307 EL CHARRO RD2 chemicals|TRI

GE CO VALLECITOS NUCLEAR CENTER6705 VALLECITOS RD|TRI

KAISER ALUMINUM & CHEMICAL CORP6177 SUNOL BLVD|TRI

CORNING-COSTAR CORP7035 COMMERCE CIRCLE|TRI

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

DUBLIN-SAN RAMON WWTF7399 JOHNSON DRPOTW|EPA

RIGHT AWAY READY MIX PLEASANTON501 EL CHARROIndustrial Stormwater|EPA

TAEC INC5675 SUNOL BLVDIndustrial Stormwater|EPA

LIVERMORE-AMADOR VALLEY WATER MANAGEMENT AGENCY7176 JOHNSON DRIVEPOTW|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.

EVERGREEN OIL INCNEWARK12.6 mi|EPA