Policy Update: Any Drinking Water Coliform Bacteria samples brought to AmTest on Fridays will be analyzed by a presence/absence Colisure test. The Cost is $30 and must be at the lab by 2pm. Verbal results will be made available the following Monday. Am Test Inc. is a full service, Washington State Department of Ecology accredited, analytical laboratory that offers a myriad of testing services in the environmental, food, industrial, and biological fields. The laboratory has been in existence since 1977 and in its current facility (Kirkland, WA) since 2008. Am Test Inc. is a privately held Washington corporation that is locally owned and operated.