EPA-regulated facilities near Union City, CA

There are 4,950 EPA-regulated facilities within 5 miles of Union City, California. The most common kinds are hazardous waste (4,558), air emissions (501), water discharge (169). 1 is currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 4 have a violation on record. Penalties over the last five years total $331k across 3 sites.

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4,950facilities within 5 miles

1in significant noncompliance

4with a violation on record

$331kin penalties, last 5 years

By category

Category	Facilities
Hazardous waste	4,558
Large quantity generators	63
Small quantity generators	361
Transporters	52
Chemical (RMP/TRI)	60
Superfund	4
Air emissions	501
Major sources	4
Minor sources	3
Water discharge	169
Minor permits	133
Greenhouse gas reporters	2
Data centers	3

A facility enrolled in several programs counts once in the total and once in each of its categories.

In significant noncompliance

The EPA's designation for its most serious or persistent violations, as of the latest data.

UNITED STATES PIPE & FOUNDRY CO LLC 1295 WHIPPLE ROAD, UNION CITY, CA, 94587 · 1.3 mi Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

BEST BUY UNION CITY 31350 COURTHOUSE DR, UNION CITY, CA, 94587 · 2.5 mi $200k in penalties
AK SCIENTIFIC INC 30023 AHERN AVE, UNION CITY, CA, 94587 · 3.2 mi $109k in penalties
PREFERRED RESTORATION INC 2487 INDUSTRIAL PKWY WEST, HAYWARD, CA, 94545 · 3.8 mi $23k in penalties

Superfund sites

PACIFIC STATES STEEL 35124 ALVARADO NILES RD, UNION CITY, CA, 94587 · 1.4 mi
CON-WAY FREIGHT MERCURY FREIGHT HUB, HAYWARD, CA, 94545 · 3.2 mi
ALAMEDA COUNTY MERCURY MYSTERY 25514 DEL MAR AVENUE, HAYWARD, CA, 94542-1864 · 4.6 mi
DIVERSIFIED INSULATION POSTAL ADDRESS IS UNAVAILABLE FOR THE SITE, NEWARK, CA, 94560 · 4.9 mi

Data centers

LEVEL 3 COMMUNICATIONS 37975 SHINN STREET, FREMONT, CA, 94536 · 3.2 mi
Petadata · 4.0 mi
META PLATFORMS INC-FRE 101 6422 COMMERCE DR, FREMONT, CA, 94555 · 4.2 mi

County

Alameda County

Nearby towns

Hayward 5 mi
Fairview 5 mi
Newark 7 mi
Castro Valley 8 mi
San Lorenzo 8 mi
Fremont 9 mi
Pleasanton 9 mi
Dublin 10 mi

Reading these numbers

These are regulatory records, not measurements of pollution. Most facilities appear because they hold a permit or file reports, and most of them are compliant; a listing is not a claim that a facility has polluted anything. Compliance status and penalties are the EPA's own determinations in data retrieved Oct 9, 2026. Distances are from the center of Union City as the Census Bureau records it. The Data page explains where each record comes from and how it can mislead.