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%.0/ SAMPLE CONTAINERS Blaine Tech Services, Inc. uses new sample containers of the type specified by the USEPA, the RWQCB or DHS. Soil samples for volatile, semivolatile and nonvolatile analyses are all collected in new brass sample liners which are two inches (2.0") in diameter by four inches (4.0") in length. Closure is accomplished with press fit plastic end caps which are fitted to the open ends of the brass tube after a sheet of aluminum foil is wrapped over the exposed sample material. No preservative other than cold storage is used on samples captured in sample containers of this type. Water samples are collected in new glass bottles of a type appropriate to the intended analyses. Analytical laboratories often wish to supply the sample containers because checks performed on these bottles are part of a comprehensive laboratory QC program. In cases where the laboratory does not supply sample containers our personnel collect water samples in new containers that are appropriate to the type of analytical procedure that the sample is to receive which are purchased from a commercial supplier of laboratory grade containers. 40 ml volatile organic analysis vials (VOAs) are used when analysis for gasoline and similar light volatile compounds is intended. These containers are prepared according to EPA SW 846 and will usually contain a small amount of preservative when the analysis is for TPH as gasoline (TPH-G) or EPA 602. Vials intended for EPA 601 analysis and EPA 624 GCMS procedures are not preserved. The closure of volatile organic analysis water sample containers is accomplished with an open headed (syringe accessible) plastic screw cap brought down on top of a Teflon faced septum which is used to seal the sample without headspace. Water samples intended for semivolatile and nonvolatile analysis such as total oil and grease (TOG) and diesel (TPH-D or TPH-HBF) are collected and transported in properly prepared new glass liter bottles. Dark amber glass is used in the manufacture of these bottles to reduce any adverse effect on the sample by sunlight. Antimicrobial preservative may be added to the sample liquid if a prolonged holding time is expected prior to analysis. Closure is accomplished with a heavy plastic screw cap. Groundwater well samples intended for metals analysis are transported in new plastic bottles and preserved with nitric acid. Our personnel can field filter the sample liquid prior to placing it in the sample container if instructed to perform this procedure. SAMPLE HANDLING Solid sample material is captured by advancing the liner into the soil. This may be done by pushing the liner into soft soils or by containing the liner in a drive shoe which can be advanced and then retracted by means of hammer blows from a captive slide-hammer. The open ends of the sample Iiner are covered with aluminum foil and plastic end caps. The brass liner is then labeled with the appropriate identification numbers which specify the sampling event number (in this case 950825-L-1) and sample identification numbers which were selected by the client. The label also Blaine Tech Services,Inc.Report No. 950825-L-1 Wright Environmental Qa Tracy New Police Facility page 6