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Assay Technology INC

1382 Stealth St, Livermore, CA 94551

ACTIVELAST SEEN IN FEDERAL DATA AUG 2026 · 3 SOURCES

Operating signal within 12 months from two or more independent sources.

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Homepage of Assay Technology INC
Their homepage, crawled JUL 2026

What they make

Other Measuring and Controlling Device Manufacturing334519

Assay Technology manufactures and analyzes personal monitoring badges for measuring chemical exposure in workers' breathing zones, along with air samplers and related sampling equipment including tubes, cassettes, wipes, and pumps. The company provides laboratory analysis services for air samples and specializes in chemical challenge testing of respirator cartridges and filters using an atmosphere generator instrument called the HCS-501. The company serves industrial hygiene laboratories and occupational health monitoring.

SUMMARIZED FROM THE COMPANY’S OWN WEBSITE

Where it is

37.69295, -121.79745 · CENSUS TIGER
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Every listed plant in Alameda County

Also at this address

No other federal record shares this street address.

WHERE THIS RECORD COMES FROM — 3 FEDERAL SOURCES, 8 FIELDS

Every fact on this page traces to a public federal filing. The table below names which register holds this facility, whether that register proves the plant operates or only that it exists, and when each of them last saw it.

EPA cross-references this facility in CA-ENVIROVIEW, RCRAINFO · EPA site type STATIONARY.

SourceEvidenceFirst seenLast seen
COMPANY SITEOPERATINGJUL 2026AUG 2026
SAM GOVOPERATINGNOV 2025NOV 2025
EPA FRSEXISTENCEOCT 2015OCT 2015
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
FIELDSOURCESIGNAL
ADDRESS LINE1EPA FRSJUL 2026
ADDRESS LINE1SAM GOVNOV 2025
CAGE CODESAM GOVNOV 2025
CITYEPA FRSJUL 2026
CITYSAM GOVNOV 2025
GEOMCENSUS GEOCODERJUL 2026
GEOMEPA FRSJUL 2026
NAMEEPA FRSJUL 2026
NAMESAM GOVNOV 2025
REGISTRATION EXPIRATIONSAM GOVNOV 2025
STATEEPA FRSJUL 2026
STATESAM GOVNOV 2025
WEBSITESAM GOVNOV 2025

Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

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