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Field Logbook <br /> In the field, the sampler records the following information on the Water Sample Field Data Sheet <br /> (Figure A-2)for each sample collected: <br /> • Project number <br /> • Client's name <br /> • Location <br /> • Name of sampler <br /> • Date and time <br /> • Well accessibility and integrity <br /> • Pertinent well data(e.g.,casing diameter,depth to water,well depth) <br /> • Calculated and actual purge volumes <br /> ® Purging equipment used <br /> • Sampling equipment used <br /> • Appearance of each sample(e.g.,color,turbidity,sediment) <br /> • Results of field analyses(temperature,pH,specific conductance) <br /> • General comments <br /> The field logbook is signed by the sampler. <br /> Labels <br /> Sample labels contain the following information: <br /> ® Project number <br /> • Sample number(i.e.,well designation) <br /> ® Sampler's initials <br /> • Date and time of collection <br /> • Type of preservative used(if any) <br /> Groundwater Monitoring A-6 Department of Public Works/Solid Waste <br /> County of San Joaquin <br />