Skip to content
Gradient clinical team member handing a specimen collection for DOT compliance

Specimen Collections

Specimen collections are a critical part of any compliant drug and alcohol testing program, but we understand they’re not always convenient — or comfortable. That’s why Gradient strives to make the process as smooth and straightforward as possible. Our team of trained Specimen Collectors and Breath Alcohol Technicians handle every collection with precision and professionalism.

Our Locations

No appointments. No hassle. Our two convenient Oregon collection sites are designed to get you in, out, and on with your day. We know your time is valuable, so while we don’t take reservations, you can count on a walk-in experience that’s quick and efficient. Our doors are open — and we’re ready when you are.

Specimen Collection Services
  • Handling of Electronic Chain of Custody Forms (eCCFs)
  • Hair Testing
  • Oral Fluid (Saliva) Testing
  • Urine Testing
  • Male- and Female-Observed Collections
  • Rapid / Instant Testing for Non-Regulated Clients
503.479.6082 10350 N Vancouver Way
Portland, OR 97217 Map it
Drug Testing Hours:
8am – 5pm
[ Mon – Tue, Thu – Fri ]
8am – 4pm
[ Wed ]
8am – 1:30pm
[ Sat ]
503.479.6082 9111 SE Saint Helens St.
Clackamas, OR 97015 Map it
Drug Testing Hours:
8am – 5pm
[ Tue, Thu – Fri ]
8am – 4pm
[ Wed ]
Gradient clinical team member checking in a client for a specimen collection for DOT compliance

Other Collection Locations

When your workforce spans multiple locations, convenience matters. As a Gradient client, you gain access to a nationwide network of trusted collection sites — including partners like MyEscreen, FormFox, Quest, and Google — and we’ll work with you to identify the most convenient, efficient, and cost-effective site options. No matter where your employees are, Gradient ensures they have access to fast, accurate, and compliant collections that fit your schedule, your budget, and your business.

Compliance Solutions

CleanFleet and Glostone are now Gradient

We’ve joined forces to deliver even greater compliance solutions. By uniting our strengths and resources, we can provide an elevated level of partnership — all with the same trusted team safeguarding your future.
Learn about our history