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Project Number: SFB-175-0204.72 <br /> Consultant Project Number: 203-1753291 <br /> Contract Number: N46CW00244-9-X <br /> Facility Number: 9-0657 <br /> Work,Order Number: D004130 <br /> Report Issue Date: April 10, 1990 <br /> Table 4 <br /> MATRIX SPIKE (MS) RECOVERY REPORT <br /> Ethylene Dibromide In Soil <br /> Modified EPA Method 504 <br /> Date of Analysis: 04/08/90 Client ID: P-5 <br /> Sample Spiked: 07 Units: mg/Kg <br /> Sample Amount MS, % Acceptability 711 <br /> Analyte Result Added MS Result Recovery Limits, %1 <br /> Ethylene Dibromide <0.2 0.2 0.16 80 73- 138 <br /> 1 = Acceptability limits are derived from the 99%confidence interval of all samples during the previous <br /> Quarter. <br /> . <# = Not detected at the indicated detection limit. <br /> Table 5 <br /> LABORATORY DUPLICATE SAMPLE RESULTS <br /> AND RELATIVE PERCENT DIFFERENCE (RPD) REPORT <br /> Ethylene Dibromide in Soil <br /> Modified EPA Method 504 <br /> Date of Analysis: 04/08/90 Client ID: P-5 <br /> Sample Used: 07 Units: mg/Kg <br /> Analyte Sample Result Duplicate Result RPD, % Maximum <br /> RPD, % <br /> Ethylene Dibromide <0.2 0.2 NA 30 <br /> NA = Not applicable <br /> GTEL Concord,CA Page 5 of 5 <br /> D004130.DOC GTEL <br /> R I <br /> LABORAIDRIr S. INC <br />