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i • <br /> CASE NARRATIVE <br /> CLIENT: CKY ENVIRONMENTAL SERVICES <br /> PROJECT: TRACY AUXILIARY AIRFIELD #8814 <br /> SDG: 951-11152 <br /> EPA M8015 <br /> DIESEL <br /> Nine (9) soil samples were received on 08/30/95 to be analyzed for Total Petroleum <br /> Hydrocarbons by M8015 analysis in accordance with USEPA SW846 and Leaking <br /> Underground Fuel Tank (LUFT) Field Manual, SWRCB, Dept. of Health Service, CA <br /> (1988). - <br /> 1 . Holding Time <br /> Analytical holding time was met. <br /> 2. Surrogate Recovery <br /> Y <br /> Bromobenzene and Hexacosane were used as surrogates in method blank, <br /> samples, LCS, MS and MSD. The recoveries were all within QC limits. <br /> 3. Matrix Spike/Matrix Spike Duplicate <br /> All recoveries and RPD were within QC limits. <br /> 4. Lab Control Sample <br /> Recoveries were within QC limits. <br /> 5. Method Blank <br /> Method blank was free of contamination. <br /> 6. Calibration <br /> Initial calibration was five point and continuing calibration were carried out at <br /> 10 sample interval. All QC requirements were met. <br /> 7. Sample Analysis <br /> Sample analyses met QC requirements. 02 <br /> CKY INC.. ANALYtICAL LABORATORIES. 630 144anie Ave..Torrance. Cai if.90503 Tei-(310)618-8889 Fax:i3I0'i 51,3.r�ci: <br />