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i <br /> 4 <br /> recalibrated or substitute equipment can be made available. The act of removing a field <br /> instrument from service must be noted in the field activity g to book. <br /> Laboratory Calibration <br /> Calibration is necessary for standard solutions and for,instruments running organic and <br /> inorganic analyses. For analytical methods from EPA SW-846, EPA 600/4-79-020, or <br /> Standard Methods, the laboratory will follow any calibration procedures listed for the <br /> particular method. The laboratory's Standard Operating Procedures are available upon <br /> request. <br /> L <br /> B.3 Analytical Procedures <br /> L <br /> All soil and water analyses will be performed by a state approved laboratory. All analytical <br /> procedures employ EPA approved methodology. <br /> LB.4 Data Reporting; Validation, and Reduction <br /> Li Data handling practices will ensure raw data validity and provide an audit trail for data that <br /> require reduction. The following sections describe procedures for field and laboratory data <br /> validation, data reduction, documentation control, and data flow. <br /> B.4.1 Field Data Validation <br /> II <br /> The field team will enter field data (instrument calibrations, measurements, observations, <br /> etc.) into field log books and data sheets. Field personnel will make all information entries <br /> in water-resistant ink. Field personnel will record into the field activity log books sufficient <br /> information to reconstruct each sampling event, including: <br /> 809-001.wkp/03-06-97/u/keydata/workplan B-6 <br /> i <br /> TerraNext <br />