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A-3 After sample collection, the samples were placed into coolers with ice packs Internal temperature of the cooler was maintained at approximately 4 degrees Celsius Samples were kept in coolers during transport to the analyzing Iaboratory 2.0 DECONTAMINATION AND DISPOSAL PROCEDURES 2.1 Equipment Decontamination Sampling equipment was decontaminated as follows 1 Prior to individual sample collection, any sampling device was cleaned in a TSP solution and rinsed twice in clean water Any visible soil residue was removed 2 Water sampling containers were cleaned and prepared by the respective analytical laboratories 3 Field monitoring equipment (pH, conductivity, or temperature probes) was rinsed with clean water prior to use and between samples 3.0 FIELD MEASUREMENTS Field data were collected during various sampling and monitoring activities, this section describes routine procedures followed by personnel performing field measurements The methods presented below are intended to ensure that field measurements are consistent and reproducible when performed by various individuals 3.1 Conductivity, Temperature, and pH Specific conductance, water temperature, and pH measurements were made when a water sample was collected Regardless of the sample collection method, a representative water sample was placed in a transfer bottle used solely for field parameter determinations A conventional pH meter with a combination electrode or equivalent was used for field-specific conductance measurements Temperature measurements were performed using standard thermometers or equivalent temperature meters Combination instruments capable of measuring two or all three of the parameters may have also been used All instruments were calibrated in accordance with manufacturer methods The values for conductivity standards and pH buffers used in calibration were recorded daily in a field LRPT026 MAF