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Quality service, results guaranteed

Workplace Drug & Alcohol Testing

Trust In Us has professional staff dedicated to personalized services, rapid turnaround time and innovative information management systems. We provide our customers with the highest quality testing and consulting services for controlled substance and alcohol testing by using the most accurate testing technology available today.

M-F: 8:00am-4:00pm
Sat-Sun: Closed

Phone: (218) 380-8072

M-F: 9:00am-4:00pm
Sat-Sun: Closed

Phone: (763) 712-8378 ext. 1

M-F: 9:00am-4:00pm
Sat-Sun: Closed

Phone: (763) 712-8378 ext. 2

Spring Lake Park

No appointment needed for
drug screening

933 Manor Dr. NE
Spring Lake Park, MN 55432

N. St. Paul

No appointment needed for
drug screening

2597 7th Ave E.
North St. Paul, MN 55109

Willow River

By appointment only

80575 Old Military Rd.
Willow River, MN 55795

Fax: (763) 201-5841

Fax: (763) 201-5841

Fax: (218) 372-4190


Our Services

Complete drug and alcohol testing services for Federal and non Federal programs including collection, testing, and MRO (Certified Medical Review Officer) services using a SAMHSA certified laboratory



Schedule at Spring Lake Park or St. Paul:

  • Audiograms

  • DOT/nonDOT physicals with Recertification

  • DOT/nonDOT physical with drug test

  • Physical with Audiogram


Sandy Clark

Sandy Clark is the owner of Clark Consulting Services.  Sandy is a Minnesota Licensed Professional Counselor (LPC), Licensed Alcohol and Drug Counselor (LADC), National Certified Addiction Counselor II (NCACII) and a DOT Qualified Substance Abuse Professional (SAP).  She holds a master’s degree in Co-Occurring Disorders and has been working in various healthcare settings for 27 years. 

Find her profile on

Please call for a FREE consultation at


Offices in Spring Lake Park and North St. Paul. Services available on-site, as needed

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Mobile Drug and Alcohol Testing


TIU  provides professional drug testing services on location! With our ability to provide our services on your premises the hassle of sending employees away from your facility while on company time is avoided along with reduced risk and liabilities that are associated with offsite testing. We bring the necessary items on-site to conduct multiple collections, testing, or training. Mobile drug testing saves you time and money

We work closely with our clients to establish policies and testing procedures that meet both Department of Transportation (DOT) and Non-Federal testing program regulations. TIU provides all types of drug testing and ensures the integrity and confidentiality of each donor and specimen. Our Compliance Specialists are certified with the TIU credential, one of the highest in the drug and alcohol testing industry. Our collectors are certified in accordance of the 49CFR part 40. Our goal is to help you make your workplace a safe and drug-free place for everyone.

Through our efficient mobile services, TIU takes the hassle out of drug and alcohol specimen collections by bringing our services directly to you. The average time spent away to an offsite clinic is 2.5 hours for a drug collection. That’s 2.5 hours of lost productivity and money for the 

DOT Compliance

If you employ safety-sensitive workers who are subject to DOT drug and alcohol testing or you manage a DOT drug and alcohol testing program, TIU will assist you with everything from identifying employees who need to be tested and conducting employee and supervisor education and training, to performing program audits, record keeping and data collection requirements. Trust In Us is a C/TPA and handles national, local and also Independent contractors and walks them through the complete process to stay in compliance with the federal rules and regulations stated in the 49 CFR part 40. We have complete consortium Random selection services, including collection testing, medical review officer (MRO) services, cab kits, etc...

Many employees and employers have asked "How do I know if I am subject to the U.S. Department of Transportation drug and alcohol testing regulations?" Click the link to determine and answer your question if you are covered or not and under what agency. 

TIU will ensure that you are in compliance with your agency specific policy

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