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Kie-con INC

3551 Wilbur Ave, Antioch, CA 94509

ACTIVELAST SEEN IN FEDERAL DATA JUN 2026 · 3 SOURCES

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

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What they make

Other Concrete Product Manufacturing327390

Where it is

38.01230, -121.75469 · CENSUS TIGER
COUNTY
METRO AREA
ON GOOGLE MAPS

Other plants nearby

FacilityCityIndustryStatusDistance
Ftg Construction Materials INCAntiochReady-Mix Concrete Manufacturing
327320
UNVERIFIED0.1 KM
Cemex AntiochAntiochReady-Mix Concrete Manufacturing
327320
LIKELY ACTIVE0.1 KM
Antioch Building Materials CompanyPittsburgAsphalt Paving Mixture and Block Manufacturing
324121
LIKELY ACTIVE9.2 KM
Cemex ConcordConcordReady-Mix Concrete Manufacturing
327320
LIKELY ACTIVE25.7 KM
Right Away Redy Mix / County Quarry Products, INC / County AsphaltMartinezAsphalt Paving Mixture and Block Manufacturing
324121
UNVERIFIED27.7 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

3 sources hold this plant, and 9 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 CA-CERS, CA-ENVIROVIEW, NPDES, RCRAINFO · EPA site type STATIONARY.

  • SAM.gov entity registrationOPERATING
    Record VYSQNJU4BC26 · first seen JUN 2026 · last seen JUN 2026
  • OSHA injury and illness reportsOPERATING
    Record 172387 · first seen DEC 2025 · last seen DEC 2025
  • EPA Facility Registry ServiceEXISTENCE
    Record 110002427972 · first seen JUN 2017 · last seen AUG 2024

IN CONTRA COSTA COUNTY27 other plants share this one’s industry (Cement and Concrete Product Manufacturing, NAICS 3273); 2 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: KIE-CON INC · JUL 2026 · ON THIS PAGE
SAM.gov: KIE-CON INC · JUN 2026 · ON THIS PAGE
Street addressSOURCES DISAGREE
EPA: 3551 WILBUR AVENUE · JUL 2026
SAM.gov: 3551 WILBUR AVE · JUN 2026 · ON THIS PAGE
City
EPA: ANTIOCH · JUL 2026 · ON THIS PAGE
SAM.gov: ANTIOCH · JUN 2026 · ON THIS PAGE
State
EPA: CA · JUL 2026 · ON THIS PAGE
SAM.gov: CA · JUN 2026 · ON THIS PAGE
County (FIPS code)
EPA: 06013 · SEP 2026
Coordinates
EPA: 38.0123,-121.754694 · JUL 2026
Employees (band)
OSHA: 20-99 · DEC 2025
CAGE code
SAM.gov: 64ME4 · JUN 2026
SAM registration expires
SAM.gov: 2027-06-20 · JUN 2026

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