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GROUNDWATER TECHi,OLOG! <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 be <br /> sealed is best. t <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 /> B. 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 labora- <br /> tory. For method (B) , .prepared and pre-weighed vlils, <br /> and sample coring 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 whole-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 /> ) <br /> C. Cover with a non-contaminating sealant (paraffin) . <br /> D. Place in plastic bag labeled with indelible marker. y <br /> Use well #, 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 /> UD❑r�IGROUNDWAR <br /> TE HNOLOGY INC. <br /> CONSULTING GROUNDWATER GEOLOGISTS <br />