Hyein Development CO Dba Cypress Cleaners

What they make

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
1 Mammoth Group LLC	Rio Vista	Sporting and Athletic Goods Manufacturing 339920	● ACTIVE	21.3 KM
Semicore Equipment, INC	Livermore	Semiconductor Machinery Manufacturing 333242	● ACTIVE	32.6 KM
Tbdx INC	Alamo	Commercial and Service Industry Machinery Manufacturing 333310	● ACTIVE	28.5 KM
Ln Curtis & Sons	Walnut Creek	All Other Miscellaneous Manufacturing 339999	● ACTIVE	27.4 KM
Arc Document Solutions, LLC	San Ramon	Commercial Printing (except Screen and Books) 323111	● ACTIVE	32.5 KM

Every listed plant in Contra Costa 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 110070473053 · first seen JAN 2019 · last seen JAN 2019

IN CONTRA COSTA COUNTY20 other plants share this one’s industry (Commercial and Service Industry Machinery Manufacturing, NAICS 3333); 4 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: HYEIN DEVELOPMENT CO DBA CYPRESS CLEANERS · OCT 2026

Street address

EPA: 2027 MAIN ST · OCT 2026

City

EPA: OAKLEY · OCT 2026

State

EPA: CA · OCT 2026

County (FIPS code)

EPA: 06013 · OCT 2026

Coordinates

EPA: 38.004099,-121.732946 · OCT 2026

Hazardous waste generator (RCRA)

EPA ECHO: none · OCT 2026