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R� s <br /> "- Alm <br /> Y <br /> t� <br /> GROUNDWATER TECHNOLOGY <br /> STANDARD OPERATING PROCEDURE <br /> CONCERNING SOIL SAMPLE COLLECTION AND <br /> HANDLING WHEN SAMPLING FOR VOLATILE ORGANICS <br /> SOP 15 <br /> 1. Use a sampling means which maintains the physical <br /> integrity of the samples. The project sampling protocol <br /> will designate a preferred sampling tool. A split spoon <br /> sampler with liners or similar tube sampler which can he <br /> sealed is best. <br /> 2. At the discretion of the project manager, the samples <br /> should be either. <br /> A. sealed in liner with teflon plugs (The "California <br /> Sampler") or <br /> S. field prepped for sample analysis. <br /> Projects using method (A) will incur a separate sample <br /> preparation charge of $ 10.00 per sample in the Tabora-- <br /> tory. For method (B), prepared and pre-weighed vials, <br /> and sample caring syringes must be ordered at least 2 <br /> weeks ahead of time from the laboratory before sampling. <br /> (Vials are free if Samples will be sent to Groundwater <br /> Technology Laboratory). <br /> 3. For sending whale-core samples (2A above) : <br /> A. Seal ends of liner with teflon plugs leaving no <br /> free air space inside. <br /> B. Tape with duct tape. <br /> C. Corer with a non-contaminating sealant (paraffin). <br /> D. Place: in plastic bag labeled with indelible marker. <br /> Use Well 4, depth, date, and job #. <br /> E. Place inside a second bag and place a labelling tag <br /> inside outer bag. <br /> F. Enclose samples in a cooler with sufficient ice or <br /> dry ice to maintain samples at 4 degrees during <br /> shipment. <br /> G. Seal cooler with a lock or tape with samplers <br /> signature so tampering can be detected. <br /> -----,----..--------------H.:•-..-.-..-package-cooler-in-a--box-wit h---insulaEng material. -- - <br /> — Chain of custody forms can be placed in a plastic--------- -- - -------- <br /> bag in this outer box. <br />