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FLUOR DANIEL GTI, INC. STANDARD OPERATING PROCEDURE CONCERNING SOIL SAMPLE COLLECTION AND HANDLING WHEN SAMPLING FOR VOLATILE ORGANICS SOP 15 1. Use a sampling means which maintains the physical integrity of the samples. The project sampling protocol will designate a preferred sampling tool. A split spoon sampler with liners, or similar tube sampler which can be sealed, is best. 2. The samples should be sealed in the liner, with teflon plugs (The"California Sampler') or plastic caps. 3. For sending whole-core samples (above): A. Seal ends of liner with teflon plugs or plastic caps, leaving no free air space inside. B. Tape with duct tape. C. Label the sample with the following information: sample identification, depth, date and time, project number and required analyses. D. Place in plastic bag labeled with indelible marker. Use Well #, depth, date, and job #. E. Place inside a second bag and place a labelling tag inside outer bag. F. Enclose samples in a cooler with sufficient ice or dry ice to maintain samples at 4 degrees C during shipment. G. Seal cooler with a lock, or tape with samplers signature so tampering can be detected. H. Package cooler in a box with insulating material. Chain of custody forms can be placed in a plastic bag in this outer box. I. If dry ice is used, a maximum of 5 pounds is allowed by Federal Express without special documents(documents are easy to obtain but are not necessary for under 5 pounds). Write "ORM-A dry ice", " pounds, for research" on outside packaging and on regular airbill under classification. UPS does not accept dry ice. J. Soil cores kept a 4 degrees C are only viable for up to 7 days when aromatic hydrocarbons are involved. The lab should prepare the samples in methanol once in the lab. 4. Decontamination of equipment in the field requires a detergent wash, with a distilled water rinse.