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0 41 Appendix A • Sample No: Sequential from 01,for areas that have two or more similar sample types from the same site • Sample Depth: h1 Parentheses measured in feet bgs. Thus, a sample with an ID number ofNBPEXFL2(14)is floor sample No. 2 at 14 feet bgs,of the excavation at the North Burn Pit. Sample ID numbers will be used on sample labels,field logbooks,sample tracking forms,COC records and any other documentation applicable to sampling activities.The sample ID umbers will also be used by the laboratory for sample data reporting. All information pertinent to the environmental samples,including specific fiel collection data,name of the sampler,and observations will be recorded in permanently bound notebooLs. Sample IDs will be linked to the site where the samples originated. The laboratory will also empl y a laboratory information management system(LIMS)to assist in tracking the progress of each sample I hrough the analytical process. A1.5.2 Sample Packaging and Shipment Samples will be sealed in ZiplocTm bags and packed in a cooler to keep them eparated from one another and dry. Ice, sealed in plastic bags,will be added to the cooler in sufficient qi Lantity to keep the samples at a temperature of 4 t 2°C for the duration of the shipment to the laboratory. The COC form will be completed by field personnel,and released to the laboi atory courier via signature. The cooler will then be released to the courier for transportation to the laborai Dry. If a commercial carrier is used,the COC form will include the air bill number in the"transfers accep d by" column and will be sealed in a ZiplocTT"bag. The COC form will then be taped to the inside of ff a sample cooler lid. The cooler will be taped shut with strapping tape. A1.5.3 Field Documentation At a minimum, sampling information will be recorded on a COC form and in the field logbook. Both documents will be completed in the field at the time of sample collection. Al entries will be legible and will be recorded in indelible black ink. A1.5.3.1 Chain of Custody (COC) Record At a minimum the following information will be recorded on the COC form: • Projectname • Project location • Projectnumber • Client representative • Project manager • Sample numbers,including depth KB61125 APPENDIX A MACTEC Engineering and Consulting, Inc. A9 September 28,2005