Thornton, Colorado Drug Test Services


Thornton, Colorado Drug Screening & Workplace Testing Services

Why Choose WSI in Thornton, Colorado?

Our Services in Thornton, Colorado

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 Thornton, Colorado

NameAddressCityStateZIP Code
WSI Testing Location16570 WASHINGTON ST Thornton Colorado 80023
WSI Testing Location500 E 84th Ave Thornton Colorado 80229
WSI Testing Location550 Thornton Parkway Thornton Colorado 80229
WSI Testing Location9025 Grant Street Thornton Colorado 80229
WSI Testing Location9351 Grant Street Thornton Colorado 80229
WSI Testing Location2616 East 120th Avenue Thornton Colorado 80233
WSI Testing Location4001 East 120th Avenue Thornton Colorado 80233