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❑�� GROUNDWATER TECHNOLOGY LABORATORY <br /> ANALYTICAL& CONSULTING SERVICES <br /> U Division of Oil Recovery Systems, Inc, <br /> 4 Mill St„ Greenville, NH 03048 <br /> Tel:(603)878.2500 <br /> Laboratory Test Results <br /> 6/19/86 <br /> Report No. 20-2894-1 <br /> Submitted to: Robert Juncal <br /> Groundwater Technology <br /> 4080 Pike Lane <br /> Concord, CA. 94520 <br /> Sample Identification: <br /> The attached report covers water samples #27009-27010 taken by R. <br /> Hughes using 40 ml septum-capped glass vials at site #20--2894, <br /> Stockton, California. <br /> Method: <br /> Analysis was performed for purgeable aromatic priority pollutants <br /> and xylenes by purge and trap gas chromatography with <br /> EPA Method <br /> detection and flame ionization deection apolumn which <br /> 602. Quantification was performed on a very polar <br /> fractionates aliphatics (up to C12) away from volatile aromatics. <br /> Chromatographic conditions are referenced in GTL Method Cade 110. <br /> Hexane and ortho-xylene are used as calibration standards For the <br /> aliphatic hydrocarbons and miscellaneous aromatics, respectively , <br /> if reported. <br /> t <br /> Minimum Detection Limit (MDL) at 5 times background is 0.5 ppb <br /> for all parameters. The level for reliable quantitation for the <br /> aliphatics is 20 ppb. Samples diluted In <br /> summed groups such as <br /> order to maintain the calibrated range are so indicated by a <br /> footnote giving the factor by which the MDL is raised. <br /> Sampling and sample handling ad preservation are specified by <br /> this laboratory to be as per h?A Method 602. Any irregularities <br /> are referenced in the attached quality assurance report. <br /> Results: <br /> Results are reported in ppb (ug/1) . <br /> Prepared bey ESL <br /> Eileen Fole <br /> Analytical Program Managez Analyst <br /> x'86 <br /> ENVIftL't�tEf�ra� hcai.ry <br /> F M,MIT SERVICEg <br />