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Focused Groundwater Investigation Work Plan Deuel Vocational Institution(DVI), Tracy, California Data Acquisition and Quality Assurance/Quality Control 5.5.3 Field Data and Sample Documentation Procedures Field personnel will be responsible for the use and maintenance of field notebooks when conducting project-related field work. Field notebooks provide a means for recording all data collection activities performed at a project site. Field notebooks are intended to provide sufficient data and observation notes to enable participants to reconstruct events that occur during site activities. All entries need to be as factual, detailed, and descriptive as possible, so that a particular situation can be reconstructed without reliance on the collector's memory. Field notebooks are not to be used as a sole source of project or sampling information,nor should they be used for recording opinions or any other inappropriate terminology. Field notebooks will be completed with consecutively numbered pages.Notebooks will be permanently assigned to field personnel. The cover of each notebook will include the following information: • person or organization to whom the book is assigned, • book number, • project number(if different from site number), • site name and number, and • start date of notebook entries. Entries into the notebook may contain a variety of information. At a minimum,notebook entries must include the following information at the beginning of each day: • date, • start time, • weather conditions, • county, state,and site address, • all field personnel present and directly involved, and • level of personal protection being used on site. In addition, information recorded in the field notebook should include the following: • a detailed description of sampling locations,physical parameters, and GW level measurements; • information on field QC samples(i.e., duplicates and trip blanks); • observations about the site and samples (e.g., odors, appearance); • information about any activities extraneous to sampling activities that may affect the integrity of the samples (e.g., low-flying aircraft nearby, fossil-fueled motors being used nearby,painting operations being carried out upwind from sampling sites); • equipment used on site, including time and date of calibration(equipment calibration also will be recorded in the calibration logbook); • maps or photographs acquired or taken at the sampling site; and • forms used during sampling. All notebook entries will be made in indelible black or blue ink.No erasures will be permitted. If an incorrect entry is made,the data will be crossed out with a single strike mark and will be dated and initialed by the originator. Entries will be organized into easily understandable tables, if possible. The PM or designee will review field notebooks that result from field operations for completeness and accuracy, on completion of the field work. 5-5