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KIRTLAND AIR FORCE BASE ALBUQUERQUE, NEW MEXICO ...

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APPENDIX C<br />

6. SAMPLE CUSTODY AND RECORD-KEEPING<br />

The history of each sample and its handling is documented from its collection through all transfers of<br />

custody until it has reached an analytical laboratory. Internal laboratory records then document the<br />

custody of the sample through its final disposition.<br />

6.1 Field Custody Procedures<br />

6.1.1 Field Documentation<br />

Field logbooks will provide the means of recording all data collection activities. When in-situ or field<br />

measurements are made, the data are recorded directly in the field logbook, with identifying information<br />

(project code, station numbers, station location, date, time, samplers), field observations, and remarks.<br />

Samples for laboratory analysis will be collected following the procedures provided in the SOPs<br />

(Appendix B of the BWP). The equipment used to collect samples will be noted in the field logbook,<br />

along with the time of sampling, sample description, depth or other location characteristics, and volume<br />

and number of containers. A sample identification number will be assigned prior to sample collection. A<br />

sample label identifies the sample container. The information recorded on the sample label includes<br />

sampling location, date and time, type of analysis required, and preservation notes. The sample label<br />

also contains an appropriate place for designating the sample as a grab or a composite and identifying the<br />

type of sample (water, soil, etc.) collected for analyses.<br />

After collection, separation, identification, and preservation, the sample is maintained under chain-ofcustody<br />

(C-O-C) procedures until it is in the custody of the analytical laboratory, at which time the<br />

analytical laboratory will implement an internal C-O-C procedure. Samples will be traceable from the<br />

time they are collected until they or their derived data are used in the final report. In order to maintain<br />

and document sample possession, the following C-O-C procedure should be implemented:<br />

Samples will be collected as described in SOPs (Appendix B of the BWP) and the FSP<br />

(Appendix A of the BWP) and project-specific addenda. Only enough of the sample should<br />

be collected to provide a good representation of the medium being sampled. To the extent<br />

possible, the quantity and types of samples and the sample locations will be determined<br />

before the actual fieldwork. As few people as possible should handle the samples.<br />

The field sampler will be personally responsible for the care and custody of the samples<br />

collected until they are properly transferred or dispatched.<br />

Log books and other records must be signed and dated.<br />

When photographs are taken to document the sampling procedure, the name of the<br />

photographer, date, time, site location, and site description should be entered sequentially in<br />

the logbook as photos are taken. Once developed by a laboratory or downloaded from a<br />

digital camera, the photographic prints will be serially numbered corresponding to the log<br />

book descriptions.<br />

When video documentation is utilized, audio documentation of the film, date, time, site<br />

location, and site description will be given.<br />

Kirtland AFB<br />

Quality Assurance Project Plan C-31 April 2004

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