Laserfiche WebLink
� �• � � .w'C°^-1 y. 3w+w 'f:',N{ may„ ��M �'Ww 1 J% • �` <br /> �lr 'ky <br /> s <br /> f <br /> S <br /> r <br /> GROUNDWATER TEC'SNOL GX, INC. <br /> STArnARD OPERATING PROCEDURE <br /> CONCERNING SOIL SAMPLE COLLECTION AND <br /> HANDLING WHEN SAMPLING FOR 'VOLATILE ORGANICS <br /> SOP is <br /> 1. Use a sampling means which maintains the physical integrity <br /> of the samples. The project sampling protocol will <br /> designate a preferred sampling tool. A split-spoon sampler <br /> with liners, or similar tube sampler which can be sealed, is <br /> best. <br /> 2. At the discretion of the project manager, the samples should <br /> be either. <br /> A. Sealed in liner with TeflonR plugs (The "Califo-,iia <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 laboratory. <br /> For method "B", preparel and pre-weighed vials, and sample- <br /> coring syringes must be ordered at least two weeks ahead of <br /> ' <br /> time from the laboratory 'cefore sampling. (Vials are free <br /> if samples will be sent to Groundwater Technology <br /> Laboratory) . <br /> 3. For sending whole-core samples (2A above) : <br /> A. Seal ends of liner with TeflonR tape or aluminum foil " <br /> leaving no free air space inside. <br /> B. Tape with duct tape. <br /> � t ' <br /> C. Place in plastic ba; labeled with indelible marker. <br /> Use well number, depth, date, and job number. <br /> D. Place inside a second bag and place a labelling tag <br /> inside outer bag. <br /> E. Enclose samples in a cooler with sufficient ice or dry <br /> ice to maintain samples at 4 celsius during shipment. <br /> F. Seal cooler with a lock or tape with samplers' <br /> signature so tampering can be detected. <br /> TEcH%11L11C%.INC <br /> N'. <br />