Laserfiche WebLink
Field Sample Management Standard Operating Procedure <br /> SWE-FSOP-002;Revision 1 Ahtna Southwest Environmental Operations <br /> 3.0 Equipment List <br /> • Gel or bag ice (determine which is appropriate) <br /> [PFAS Project]: Ice in polyethylene bags <br /> • Bubble wrap and/or foam inserts <br /> [PFAS Project]: Avoid packing materials that contain PFAS and materials that absorb water, <br /> including paper, cardboard, and styrofoam; as they become soggy,they lose cushioning <br /> properties. <br /> • Clear, strapping, or duct tape <br /> [PFAS Project]: Use PFAS-free tape <br /> • Coolers <br /> • Heavy-duty plastic bags <br /> [PFAS Project]: Use HDPE bags' <br /> • Plastic zip-top bags (i.e., quart and gallon) <br /> [PFAS Project]: Use HDPE bags' <br /> • Air or Ground Waybills <br /> • Sample container labels <br /> • Custody seals for coolers <br /> 4.0 Procedures <br /> 4.1 Sample Custody <br /> Five aspects of sample custody. <br /> • Use appropriate sampling equipment <br /> • Properly handle and document samples, starting from the time of collection <br /> • Keep samples within temperature controls and safely located until offsite transport <br /> • Properly pack and transport samples from the field site to the laboratory <br /> • Verify laboratory receipt of samples <br /> • Ensure laboratory has a custody program (subcontractor responsibility) <br /> 4.2 Proper Sampling Equipment <br /> The supplies needed to collect samples must be made of material that will not release contaminants to <br /> the sample or hold contaminants to the sampling equipment. Equipment specifications are described in <br /> '[PFAS Project]: LDPE bags may be used for bagging samples if special precautions are taken. LDPE bags should be <br /> kept separate from other sampling supplies in the staging area and should not come into direct contact with the <br /> sample media. Gloves should be changed after handling LDPE bags. <br /> Page 6 of 12 <br />