19E - WATER QUALITY REPORT - Laserfiche WebLink

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PFAS Sampling Guidance SAMPLE SHIPPING • Samples should be stored in ice chests at least 1/3 filled with wet ice and do not exceed 100C (50°F) until analyzed at the laboratory. If the immediate analysis is not possible, samples should be stored at 10°C (50°F) while independently enclosed to their individual sealed bag provided until extraction but must not be frozen or stored in blue ice/chemical ice. o Samples must arrive at the laboratory within 48 hours of sampling, and at a temperature between 10°C (50°F) and 0°C (32°F) but not frozen. o If samples are received at the laboratory more than 48 hours after sampling they must be between 6°C (42.8°F) and 0°C (32°F) but not frozen. • Pack the bottles (which are placed inside sealable plastic bags provided by the laboratory) upright in the ice chest. Ensure that the bottles cannot move sideways at all. Any extra space should be packed with ice. • Put additional Ice inside of double plastic bags and place these on top of the bottles. The COC form will accompany all samples and be filled out at the same time samples are collected.z The COC form is an integral part of sample QA/QC, each ice chest should include a COC. o Ensure that the COC is complete and ready to be signed by lab representative, carrier or overnight service, and retain the sender's copy. o Place the COC in a sealed plastic bag (1 gallon) inside of the cooler. • Seal the ice chest firmly by wrapping tape around it multiple times. Put labels stating "keep chilled" on the outside of the ice chest. • Attach plastic overnight carrier tags to the ice chest's handle, retain the marked sender's copy for the record tracking number. • Provide the shipping information to the laboratory and communicate the potential time of arrival of the samples. 2 The general Information from the COC could be filled ahead (Contact Information, samplers name) 19E-26