Vacaville, California Drug Test Services


Vacaville, California Drug Screening & Workplace Testing Services

Why Choose WSI in Vacaville, California?

Our Services in Vacaville, California

Drug Test

Random Management Programs

Physical Exams

Specialized Testing

Expert Training Programs

Background Check Services

Core Services


Reason for Test


  • Pre-Employment Test
  • Random Test
  • Post-Accident Test
  • Reasonable Suspicion Test
  • Return to Duty Test
  • Follow-up Test
  • Periodic Test

Physicals & Health Testing


  • DOT Physical
  • Physical
    • Respirator Physicals: For workers who handle hazardous substances.
    • Pulmonary Function Test
    • OSHA Medical Questionnaire
    • Lift Test
    • Chest X-Rays
    • Kraus Weber
    • EKG
    • Vision Test
      • Vision Snellen
      • Vision Titmus
      • Vision Ishihara
      • Vision Jager
  • Titer Test
    • Hepatitis A
    • Hepatitis B
    • Hepatitis C
    • TransFERRON Gold Tuberculosis
    • Measles
  • Wellness Testing

Workplace Programs and Training


Additional Services


  • FMCSA Clearinghouse Support
  • Background Checks
    • County Background Search Check
    • State Background Search Check
    • Federal Background Search Check
    • Name Alias Background Search Check
    • Sex Offender Background Search Check
    • OIG Background Search Check
    • SSN Trace Background Search Check
    • Global Terror Watch List Background Search Check
    • Adverse Action Background Search Check Assistance

FMCSA Clearinghouse Compliance Support

Interested? Contact Us

Our Locations in Vacaville, California

NameAddressCityStateZIP Code
WSI Testing Location1010 Nut Tree Rd Vacaville California 95687
WSI Testing Location600 NUT TREE ROAD STE 320 Vacaville California 95687
WSI Testing Location1679 East Monte Vista Avenue Vacaville California 95688
WSI Testing Location418 Davis Street Vacaville California 95688
WSI Testing Location770 MASON St., 2ND FLOOR Vacaville California 95688