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0 <br /> Section 4 Surveying and Sampling <br /> All samples for metals analysis shall be field filtered(0.45 micron filter)prior to analysis. <br /> 4.2.4 QUALITY ASSURANCE/QUALITY CONTROL <br /> All data collection will be in accordance with proper sampling and field measurement procedures <br /> as outlined below. The QA/QC program components for the field include: <br /> • Decontamination of field sampling equipment <br /> • Calibration of all field measuring equipment <br /> • Sample logging and chain of custody procedures <br /> • Sample labeling <br /> • Ensuring that all samples are obtained, maintained, and shipped according to QA/QC <br /> procedures <br /> All equipment used to obtain field measurements (pH meter, specific conductance meter, etc.) <br /> will be calibrated according to manufacturer's directions. Calibration will be performed prior to <br /> the beginning of the sampling event. <br /> 4.2.5 DECONTAMINATION <br /> Non-dedicated sampling equipment will be cleaned by hand and on polyethylene sheeting or in <br /> contained bins. Cleaning will include: <br /> 1. If adhered soil particles are observe, removing soil by scrubbing with a hand brush in <br /> solution of potable water and a non-phosphate detergent(Alconox). <br /> 2. Rinsing with potable water. Rinsing with free-flowing potable, deionized, or distilled <br /> water. <br /> 3. Rinsing with chlorine solution prepared with potable,deionized, or distilled water. <br /> Dedicated hand bailers will be rinsed with potable water. If this does not result in acceptable <br /> cleaning of the bailer(e.g. soil particles adhere to the bailer) decontamination will follow that of <br /> non-dedicated equipment. <br /> 4.2.6 FIELD FORMS <br /> A field notebook containing all field forms for activities conducted during the field program will <br /> be maintained. Information concerning sample collection procedures, sample identification, and <br /> any other pertinent information or observations will be recorded on the field forms. Copies of <br /> the field forms will become part or the project file or Facility Operating Record for further <br /> reference. <br /> 4.2.6.1 Sample Identification InformationlTracking <br /> A sample identification system will be used to identify each sample location and sample type <br /> collected from the facility. This will provide a tracking system to allow for retrieval of <br /> information and to insure that each sample is uniquely numbered. The sample identification will <br /> consist of the following minimum information: <br /> May 2006 Main Stone Property <br /> 4-2 Effluent Storage and Disposal Site Hydrogeologic Investigation Workplan <br />