Important announcement

We would like to give an update on the upcoming changes with the passage of HB 1453. This bill eliminates the 37% excise tax for medical card holders when purchasing DOH compliant products which require heavy metal testing. We are currently installing heavy metal testing capabilities and will have it up and running soon. As always, our pricing will remain competitive with a quick turnaround time at no extra charge, and without the need for a contract.

Click here to view HB 1453 in it’s entirety

Spokane’s most trusted cannabis testing laboratory

GGL is the lab that growers in Eastern Washington turn to for fast reliable cannabis testing. We get your product to market faster. GGL was built from the ground up to provide industrial growers and processors with efficient, state mandated testing. We serve the entire Eastern Washington region. Call or email GGL today to learn more about our services.

GGL is accredited to offer all I-502 required testing, terpenes, and pesticides. We are approved for testing of all PESTICIDES LISTED in WAC 314-55-108.

Potency Testing

We offer all I-502 required cannabinoids: THC, THCA, CBD, and CBDA. In addition we offer an extended potency screen of 16 cannabinoids in flower and extract.

Get Testing Results Faster

Stop sending your cannabis out of town to get it tested! We offer LOCAL testing for Spokane growers. Get your results online. Notifications available via text and email.

Full Service Lab

We can also do testing for residual solvents and microbial.

WHY SPOKANE GROWERS CHOOSE US

  • Local testing
  • Text when tests are ready for viewing
  • Personal log in for results
  • Competitive pricing

green_grower_2016_Spring_Emerald_Test_Potency_award_badge