All submitted samples require a completed, signed, Chain of Custody to be submitted with the samples. Fillable PDF copies of pertinent COC’s are available on our Forms and Downloads page. Incomplete or missing COC’s may results in processing delays.
Please call us to coordinate the shipping and receiving of samples that are iced or frozen in order to minimize the chance of warming or spoilage.
- Perishable Samples – Should be shipped overnight and on “blue ice” chill packs.
- Frozen Samples – Should be maintained in the frozen state using dry ice.
- Customers outside of the USA:. We have USDA import permits available for those customers wishing to send us soil or vegetation (raw, non-processed) samples from outside the United States. Having the proper permit attached to the package facilitates passage through US Customs. Please call or e-mail us for details.
We offer a range of Turnaround Time (TAT) options to meet your project and budgetary requirements. TAT’s vary by test and commodity with some reporting options available by end of next business day, with our most cost effective options ranging from 5 to 8 business days. Please note: that end of next business day options are available upon prior notification and only for certain methods, and samples must be received at the lab before 11AM to ensure timely processing in the lab. TAT’s start from successful receipt of a complete COC upon intake.
Delivery of Certificates of Analysis (COA)
COA’s will be e-mailed as soon as work is completed. You may request a paper copy by mail. If payment must be received prior to release of COS’s unless payment terms have not been established prior to receipt of samples.
Sampling, Sample Sizes, and Preservation
Please call us if you have questions concerning sampling, sample sizes or preservation of samples. These factors can vary widely per sample so contact us for specifics on your sample.
Office Hours: Monday – Friday
8AM – 5PM Pacific Standard Time (UTC-08).
Samples shipped by private carrier (UPS, FedEx, Airborne, etc.) or US Postal Service (USPS)
12423 NE Whitaker Way
Portland, OR 97230 USA