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HAZ

Hazardous Substance Removal Contractor Verification - Page 14

1,891 hazardous substance removal contractors checked against 6 data sources (Page 14 of 38)

About HAZ License

Hazardous substance removal contractors.

1,891

Total Contractors

1,830

Active Licenses

246

Federal Records

Verify a Hazardous Substance Removal Contractor

Hazardous Substance Removal Contractors

Showing contractors 651-700 of 1,891

D C DESIGN & CONSTRUCTION

Clear

License #887341 · SAN LUIS OBISPO

Active

D J SCHEFFLER & NYE INC

Clear

License #582912 · POMONA

Active

D L G CONTRACTORS INC

Clear

License #988588 · SANTEE

Active

D L WIEST ENTERPRISES INC

Clear

License #606318 · RIVERSIDE

Active

D S ENGINEERING

Clear

License #737543 · NEWPORT BEACH

Active

D W MACPHERSON CONSTRUCTION

Clear

License #792887 · ARROYO GRANDE

Active

D-LINE CONSTRUCTORS INC

Clear

License #944284 · OAKLAND

Active

D3 ENVIRONMENTAL ENGINEERING

Clear

License #1014375 · ALAMEDA

Active

DA CON CO

Clear

License #191402 · ALTADENA

Contr Bond Susp

DALTON TRUCKING INC

Clear

License #522899 · RANCHO CUCAMONGA

Active

DANNER CONSTRUCTION INC

Clear

License #960167 · SAN JUAN CAPISTRANO

Active

DARCO ENGINEERING INC

Clear

License #833651 · SAN MARINO

Active

DASILVA UNDERGROUND

Clear

License #1040132 · ARROYO GRANDE

Active

DAVCAS ENGINEERING LLC

Clear

License #1136139 · JURUPA VALLEY

Active

DAVID & SONNY DRILLING COMPANY

Clear

License #1062689 · PLEASANT HILL

Active

DAVIS PETER A

Clear

License #549628 · SAN RAFAEL

Active

DC ENGINEERING

Clear

License #481444 · VALLEY SPRINGS

Active

DCW ENGINEERING

Clear

License #1039351 · CARLSBAD

Active

DEBENHAM DENNIS E

Clear

License #549866 · CLOVERDALE

Active

DEL MAR ENVIRONMENTAL & CONSTRUCTION SERVICES INC

Clear

License #874419 · CHULA VISTA

Active

DEL-TECH GEOTECHNICAL SUPPORT SERVICES INC

Clear

License #657366 · OAKDALE

Active

DELL GROUP THE

Clear

License #679839 · MORGAN HILL

Active

DELTA ENGINEERING CONSTRUCTION COMPANY

Clear

License #649929 · SAN JACINTO

Active

DELTECH ENGINEERING

Clear

License #778185 · ANAHEIM

Work Comp Susp

DEMO & ABATE INC

Clear

License #1089899 · YORBA LINDA

Active

DEMOLITION X

Clear

License #1041038 · LA VERNE

Active

DEPENDABLE GRADING INC

Clear

License #899244 · NEEDLES

Active

DERNA CONTRACTING INC

Clear

License #1100146 · SANTA MONICA

Active

DERRICKSON PIKE INC

Clear

License #991139 · GRANITE BAY

Active

DFL DESIGN + BUILD

Clear

License #1046215 · SAN GABRIEL

Active

DIAL GENERAL ENGINEERING

Clear

License #982034 · TURLOCK

Active

DIAMOND D ENGINEERING

Clear

License #1027104 · UKIAH

Active

DIANI A J CONSTRUCTION CO INC

Clear

License #178450 · SANTA MARIA

Active

DIANI BUILDING CORP

Clear

License #850921 · SANTA MARIA

Active

DIEDE HOMES INC

Clear

License #928463 · WOODBRIDGE

Active

DIRT AND AGGREGATE INTERCHANGE INC

Clear

License #507828 · FAIRVIEW

Active

DIRTWORKS GENERAL ENGINEERING

Clear

License #1048702 · SAN DIEGO

Active

DISASTER RESTORATION GROUP INC

Clear

License #910036 · FALLBROOK

Active

DISASTERZ USA INC

Clear

License #1137945 · CHATSWORTH

Active

DIVERSIFIED ENGINEERING OF WESTLAKE INC

Clear

License #566024 · AGOURA

Active

DIVERSIFIED ENVIRONMENTAL FIELD SERVICES

Clear

License #1073279 · GLENDALE

Active

DIVERSIFIED PROJECT SERVICES INTERNATIONAL INC

Clear

License #973308 · BAKERSFIELD

Active

DNA INDUSTRIAL HYGIENE

Clear

License #773462 · REDONDO BEACH

Active

DOJA INC

Clear

License #597764 · ONTARIO

Active

DOLEZAL WARREN F

Clear

License #352767 · SAN LUIS OBISPO

Active

DOMINGOS DENNIS A COMPANY

Clear

License #478134 · LOMPOC

Active

DOMINGUEZ & SONS TRUCKING INC

Clear

License #829081 · SAN JOSE

Active

DONAGHUE PATRICK M

Clear

License #378320 · BENICIA

Active

DONLEE PUMP COMPANY

Clear

License #432089 · CERES

Work Comp Susp

DOUBLE O ENGINEERING INC

Clear

License #864693 · SAN CARLOS

Active

How to Verify a Hazardous Substance Removal Contractor (HAZ) in California

California requires all contractors performing hazardous substance removal work valued at $500+ to hold a valid CSLB HAZ license. Of the 1,891 licensed hazardous substance removal contractors in the state, 97% currently hold active licenses and 13.0% have at least one federal compliance record.

Manual vetting takes 45+ minutes per contractor and routinely misses violations in databases most people don't know to check. SiteVetter runs CSLB status, SAM.gov debarment, DOL wage violations, OSHA safety citations, and EPA environmental records in seconds—creating a timestamped compliance artifact.

Verification Checklist for Hazardous Substance Removal Contractors

  • Verify the contractor license is active and in good standing
  • Request proof of insurance and bonding
  • Get at least 3 written quotes before selecting a contractor
  • Check federal databases: SAM.gov, OSHA, DOL, and EPA records
  • Confirm bond: California requires $25,000+ contractor bond (SB 607)

Why Verification Matters for Hazardous Substance Removal Work

Under California's "Controlling Employer" doctrine, general contractors face liability for subcontractor safety violations. For hazardous substance removal work specifically, 13.0% of licensed contractors have federal records that a standard CSLB license check wouldn't reveal. SiteVetter's 5-database check catches what a single-source verification misses.

Data sourced from California Contractors State License Board and federal databases. Updated weekly. For official verification, check directly with CSLB.