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QUALITY ASSURANCE AND QUALITY CONTROL PLAN The Remedial Investigation (RI) Quality Assurance/Quality Control (QA/QC) program is intended to facilitate the acquisition of accurate and reliable data. Environmental data gathered during the RI will be collected and analyzed following procedures prescribed in the Quality Control Program. A Quality Assurance Program has been established to assure that the Quality Control Program is effective. Both programs are necessary to provide accurate data and documentation for investigations and laboratory analyses. The following field and laboratory procedures will be implemented to ensure that QA/QC objectives are met. 1.0 RECORDING OF FIELD DATA Field documentation will include, at a minimum, a Field Logbook, buildings floor plans, and preprinted chain of custody(COC) forms. 1.1 Field Notebook A Field Logbook with consecutively numbered pages will be assigned to this project. All entries will be recorded in indelible ink. At the end of each workday, the responsible sampler will cross out, sign, and date any unused portions of the logbook page last used. If it is necessary to transfer the logbook to another person,the person relinquishing the logbook will sign and date the last page used, and the person receiving the logbook will sign and date the next page to be used. At a minimum, the Field Logbook will contain the following information: • Sample location and description • Site or sampling area sketch showing sample location and measured distances • Sampler's name(s) • Date and time of sample collection • Designation of sample as composite or grab • Type of sample • Type of sampling equipment used • Field observations and details related to analysis or integrity of samples (e.g., weather conditions, noticeable odors, colors, etc.) • Shipping arrangements (overnight air bill number) • Name(s) of recipient laboratory, which is BC Laboratories, Inc. In addition to the sampling information, the following specific information will also be recorded in the field logbook for each day of sampling: • Team members and their responsibilities • Time of arrival/entry on site and time of site departure • Other personnel on site • Summary of any meetings or discussions with contractor or federal agency personnel • Deviations from sampling plans, site safety plans, and/or Standard Operating Procedures (SOPS) • Changes in personnel and responsibilities with reasons for the changes • Levels of safety protection • Calibration readings for any equipment used and equipment model and serial number G:\Data\GROUNDZE\STALLWORTH AUTO SALES(N CA)1380\Workp1an\QA.QC Plan.docx