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GT gNVIRON.MZNTAL LABORATORY (GTEL) <br /> _ BTANDARD opMTING PROCEDURE <br /> CONCERNING CHKIN OF CUSTODY <br /> 2®P 21 <br /> iPPed <br /> 1. Samples <br /> delivered uto thst Immaintained <br /> laboratory. T'heclaboratoryiWill Will <br /> then <br /> maintain custody. A, sample is under custody if: <br /> g) It is in your possession <br /> b) It is in your view after being in your posseanion <br /> C) You locked it up after being in your possession <br /> d) It is in a designated secure area <br /> 2. 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 form. <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 /> -' ends of the tape <br /> itihouldorder <br /> beot8pedprevent <br /> and signedundetected <br /> as well. <br /> tampering. <br /> Each sampling jar <br /> Scotch tape works well. <br /> 4. write "sealed by" mnd sign in the "Remarks" box at the <br /> bottom of the form before sealing up the box. Place form in <br /> .�- a plastic bag and seal it inside the box. <br /> S. 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) e;ample temperature and condition when „eceived by <br /> lab. <br /> d) Preservation notation. <br /> e} pH of samples when opened for analysis {if <br /> acidified) . i'oblem <br /> f) Sampling observation or trampling p <br /> 6. The chain-of-custody form should be included inside the <br /> shipping container. A copy should be sent to the project <br /> - manager. <br /> the in- <br /> �. When the samples are received by the <br /> ealab notechaof theftime <br /> custody 4rm will be dated, signed. with <br /> ~ made by a lsbor&to receiptsrepresentative. <br /> reentatibe.reta Theformed atheglabora- <br /> shipping bills a <br /> Will_ tory files. <br /> T � (�HII\1411T1 H <br />