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Proto Works

3956 Yosemite Ave, Lathrop, CA 95330

UNVERIFIEDLAST SEEN IN FEDERAL DATA — · 1 SOURCE

Present in a source dataset, with no recent operating signal.

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What they make

Other Motor Vehicle Parts Manufacturing336399

Where it is

37.79268, -121.28703 · CENSUS TIGER
COUNTY
METRO AREA
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STREET VIEW

Other plants nearby

FacilityCityIndustryStatusDistance
Aisin Electronics, INC.StocktonOther Electronic Component Manufacturing
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Lfw Manufacturing INCStocktonMachine Shops
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Geiger Manufacturing INCStocktonMachine Shops
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UNVERIFIED17.2 KM
Ripon Manufacturing CO INCRiponMetal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers
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Lemnos Technologies, LLCWoodbridgeMilitary Armored Vehicle, Tank, and Tank Component Manufacturing
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ACTIVE39.8 KM

Every listed plant in San Joaquin County

Also at this address

No other federal record shares this street address.

Where this record comes from

1 source holds this plant, and 7 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.

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

  • EPA Facility Registry ServiceEXISTENCE
    Record 110070447971 · first seen JAN 2019 · last seen JAN 2019

IN SAN JOAQUIN COUNTY23 other plants share this one’s industry (Motor Vehicle Parts Manufacturing, NAICS 3363); 0 of them have a size band on record.

What each source says

Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

Name
EPA: PROTO WORKS · OCT 2026
Street address
EPA: 3956 YOSEMITE AVE · OCT 2026
City
EPA: LATHROP · OCT 2026
State
EPA: CA · OCT 2026
County (FIPS code)
EPA: 06077 · OCT 2026
Coordinates
EPA: 37.792675,-121.287032 · OCT 2026
Hazardous waste generator (RCRA)
EPA ECHO: none · OCT 2026

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