Chain of custody record, Westchester County Department of Labs

NYC 9/11 Public Portal Document

14.5 The results will be entered onto SAS data sheets by the Pathogen Lab, double­ checked and submitted by Friday of each week to the Admin staff responsible for entering the data. The computer copy is sent back to the Pathogen Lab. The computer sheet is again double checked and returned to the admin staff for any necessary conections. After any coirections, the computer sheet is filed with the Pathogen Lab.

15 Corrective Action Contingencies

15.1 If any pail of the Quality Control procedure is found to be unacceptable, results ai’e not reported. Instead "QCU" is placed in the data location indicating "Quality Control is Unacceptable,” and a chail or graph showing the results of conceni is attached. 15.2 The lab director and the principal analyst are to take con-ective action.

16 Record Keeping

16.1 Records are kept on all samples, procedures, obsei-vations, calculations and data analysis. When a sample comes in, it is recorded in a Sample logbook. The sample papenvork is signed and placed the Histoiy Sheet binder. The notes on the procedures are kept in the technicians or analyst’s lab notebook. Obsei'vations and calculations are kept in the lab's sample analysis notebook.

16.2 For samples processed by the 1623 method, an additional bench sheet is kept to record individual steps during processing. 16.3 Records are kept in the laboratory for a minimum of 5 yeais. After 5 years, records can be moved to another DEP location for a minimum of another 5 year teiTO.

16.4 Data analysis records (spread sheets, graphs, etc.) ai'e stored on a computer disk with a backup and are also stored in hai’d copy foiin. All of the lab books and binders ai'e kept in a file cabinet drawer and on a bookshelf.

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