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1 (OR I ")N r� 1 Rinse with water using a brush to remove soil and mud ' 2 Wash with non-phosphate deter detergent and water using a brush g g ' 3 Rinse with deionized water 4 Rinse again with deionized water 5 Air dry Brass tubes were new or cleaned using the decontamination procedures described above End caps were new Drill augers were steam-cleaned before each boring was drilled Management of Drill Cuttings and Wastewater The drill cuttings were placed in 24 DOT-approved 55-gallon drums and stored on site Each drum was labeled with the date, drum contents, and corresponding depths The soil was transported off site for low-temperature incineration and recycling at TPS Technologies, Inc facility in Adelanto, California Wastewater generated during well development and groundwater sampling was stored on site in 55-gallon drums The . wastewater was transported off site by Belshire Environmental for recycling as a non- hazardous waste at the DeMenno Kerdoon facility in Compton, California Documentation Procedures Orion personnel followed documentation procedures developed for site investigation work The procedures serve to (1) provide a record of the activities performed in the field and (2) permit identification of samples and tracking of their status in the field, during shipment, and at the laboratory Orion field personnel were on site to observe the progress of sampling and to log each boring The information recorded on the boring log included drilling equipment used, ' boring location, number of hammer blows per half-foot sampler advance, nature of the materials encountered, sampling depth, time of day, PID readings, and other pertinent data The boring logs were drafted for presentation in this report ' Soil Analytical Program Soil samples were delivered by UPS to Positive Lab Service (Positive) of Los Angeles, California, a State-certified laboratory Selected soil samples were analyzed for the ' S\RFS\STOCKTON\LTR\LTR004 DOC 717100