Testing FAQs

WA Compliance Marijuana Flower Samples

Flower Samples must be roughly equal weight not less than 1 gram each. Samples must be labeled and prepared in accordance with Section (2) of WAC 314-55-101

  • 0-10lb lot: 8 samples
  • 10-20lb lot: 12 samples
  • 20-30lb lot: 15 samples
  • 30-40lb lot: 18 samples
  • 40-50lb lot: 19 samples

WA Compliance Concentrates and End Product Samples

  • Concentrates: 2 gram minimum
  • Solid Edibles: 2 unit minimum
  • End Products: 1 gram minimum
  • Other Products: Inquire with lab

PPM → %
10,000 ppm / 1,000,000 ppm = 1%
25,350 ppm / 10,000 ppm = 2.535%

% → mg/g
1,000 mg = 1 g
10 mg / 1 g = 1%
.87% * 10  = 8.7 mg/g

Retests may be approved on a case by case basis by the board. Please email mjexaminer@lcb.wa.gov to ask for approval.

Remediation may occur depending on the type of failure. Pesticide failures cannot be remediated.

We offer complimentary pick up service Monday-Friday along the I-5 corridor. If outside of our pick up range, please contact third party transit companies and based on sample volume the fee can be credited to your account.

Please request pick ups the day prior to be added to the schedule. Contact us by email or phone to set it up.

Our office is open Monday-Friday 9am-5pm and weekends by appointment. Feel free to stop by and drop off your samples with the associated manifest.

By appointment only. Please call or email the office to schedule a time.

To begin testing your lots and products with Treeline Analytics, go ahead and Request Testing below, or shoot us an email through our contact page and we’ll get back to you right away.

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We offer competitive pricing on all of our cannabis compliance tests. See our Pricing page for details.

View our current prices here

You can pay invoices with cash, check, or money order. Credit cards may incur an additional 3% charge.