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10 <br /> Project Number: SFe.17,1 0-=4.72 <br /> Consultant Protect Number: 16000.250.044 <br /> Contract Number, N46OWCO244-9-x <br /> Facility Number: 9-6155 <br /> Work Order NUmber C009SU7 <br /> Report Issue Bate; September 20,1990 <br /> Table 4 <br /> SURROGATE COMPOUND RECOVERY <br /> Naphthalene <br /> Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> as Gasoline in Soil <br /> EPA Method 8020/8015 <br /> _�. Acceptability Ljmitsi: 60-130 % <br /> Expected Result, Surrogate Result, Surrogate <br /> GTEL No. ug/L ug/L. Recovery,% <br /> Water Blank 200 198 99 <br /> µ McOH Blank 200 164 82 <br /> 01 200 213 106 <br /> 02 200 225 <br /> 112 <br /> 03 200 208 <br /> 104 <br /> 04 200 193 98 <br /> - 05 200 128 gg <br /> ` 06 200 177 88 •• <br /> - MS 200 13166 <br /> MSD 200 139 B9 <br /> tviS = Matrix Spike <br /> MSD = Matrix Spike Duplicate <br /> 1 = Acceptability limits are derived from the 99%confidence interval <br /> of all samples during the previous quarter. <br /> GTEL Concord.CA Pale 6 017 <br /> C009U7,DCt: <br /> GTE <br /> f N V 1 P 0 N M E 4 T A: _ <br /> [A{0VA T023E$. INC - - <br />