Our commitment to our clients is to ensure that sampling and analytical procedures are properly executed, chain-of-custody information is complete, all QC procedures are implemented and recorded, and only valid data are reported.
Columbia routinely participates in independent performance evaluation and audit programs for federal and state programs and for our commercial clients. We consistently score higher than the national average on our performance evaluation analyses.
Columbia Analytical Services, Inc., 1317 South 13th Avenue - P.O. Box 479, Kelso, WA 98626. Tel: 800-695-7222; Fax: 360-636-1068.