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fir:..... <br /> GT ENVIRONMENTAL ZABORATORY (GTEL) <br /> 5,,rANDAR.D OPERATING PROCEDURE <br /> CONCERNING CHAIN OF CUSTODY <br /> SOP 11 <br /> 1. Samples must be maintained under custody until shipped or <br /> delivered to the laboratory. The laboratory will then <br /> maintain custody. A sample is under custody if: <br /> a) It is in your possession <br /> b) It is in your view after being in your possession <br /> c) You locked it up after being in your possession <br /> .Tt is in a designated secure area <br /> Z. Custody of samples may be transferred from one person to the <br /> next. Each transferee and recipient must date, sign and <br /> note the time on the chain-of-custody farm. <br /> 3. In shipping, the container must be sealed with tape, bearing <br /> the sender's signature across the area of bonding at the <br /> pends of the tape in order to prevent undetected tampering. <br /> Each sampling jar should be taped and signed as well. <br /> Scotch tape works well. <br /> 4. Write "sealed by" and sign in the "Remarks" box at the <br /> bottom of the fora before sealing up the box. Place farm in <br /> a plastic bag and seal it inside the box. <br /> 5. The "REMARKS" section in the upper right part of the form is <br /> - for documenting details such as: - <br /> a) Correlation of sample numbers if samples are split <br /> between labs. <br /> b) QC numbers when lab is logging in the samples. <br /> C) Sample temperature and condition when received by <br /> lab. <br /> d) Preservation notation. <br /> e) pH of samples when opened for analysis (.if <br /> acidified) . <br /> f) Sampling observation or sampling problem <br /> 6. The chain-of-custody form should be included inside the <br /> shipping container. A copy should be sent to the Vxoject <br /> manager. <br /> 7. When the samples are received by the lab, the chain-of- <br /> custody form. will be dated, signed, and a note of tha time <br /> —.---- ------ -- ---made-by-.a-lab orat ory--representative._The form along with <br /> shipping bills and receipts will be <br /> t <br /> tory files. <br /> Gxs %nu iTDt <br /> TP.�►t.utik'.t I�� <br />