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CORE LABORATORIES <br />' ~ COR~L~ <br />. D U A L I T Y A S S U R A N C E M E T H O D S <br />REFERENCE S A N D N O T E S <br />Report Date: 06/3D/97 <br /> HATER LIMITS SOIL LIMITS <br /> Recovery RPD Recovery RPD <br /> VOLATILE ORGANICS <br /> Methods 602/8020 Surrogate <br /> Bronnf Luorobenzene 89-110% 78-123% <br /> Methods 602/8020 Spike/Spike Duplicate <br /> Benzene 39-150% 25 75-125% 25 <br /> Ethylbenzene 32-160% 25 60-140% 25 <br />' Toluene 46-148% 25 70-130% 25 <br /> %ylenes 75-125% 25 61-139% 25 <br /> Method 8015 Mod. SpikelSpike Duplicate <br />' TVPN 75-125% 20 48-152% 20 <br /> TEPN 54-135% 20 54-135% 20 <br /> Methods 624/8240/8260 Surrogates <br />Dibramof luorome[hane 86-118% <br />80-120% <br /> Toluene-(d8) BB-110X 81-117% <br /> 4-Bromof luorobenzene 86-115% 74-121% <br /> Method 524.2 Surrogates <br />' 4-Bromof Luorobenzene 80-120% <br /> 1,4-Dichlarobenzene-d4 80-120% <br /> Methods 624/8240 Spike/Spike <br />1,1-Dichloroethene Duplicate <br />67-145% <br />14 <br />59-172% <br />22 <br /> TrichLOroethene 71-120% 14 62-137% 24 <br /> Benzene 76-127% 11 bb-142% 21 <br /> Toluene 76-125% 13 59-139% 21 <br /> Chlorobenzene 75-130% 13 60-133% 21 <br /> Method 8260 Spike/Spike Dupli cate <br /> 1, 1-Dichloroethene 70-130% 14 70-130% 22 <br /> Trichloroe[hene <br />Benzene 71-120% <br />76-127% 14 <br />11 70-130% <br />70-130% 24 <br />21 <br /> Toluene 76-125% 13 70-130% 21 <br /> Chlorobenzene 75-130% 13 70-130% 21 <br /> Nethod 524.2 Spike/Spike Dupl icate <br />' 1, 1-Dichloroethene 80-120% 14 <br /> Trichloroethene 80-120% 14 <br /> Benzene 80-120% 11 <br /> Toluene 80-120% 13 <br /> Ch lorobenzene 80.120% 13 <br /> PESTICIDES AND PC8'S <br /> Methods 608/8080 Surrogates <br />' TetrachLoro-m-xyl ene 60-150% 60-150% <br /> 4,4'•D ichlorobiphenyl 60-150% 60-150% <br /> Decachlorobiphenyl 60-150% 60-150% <br />' Method 8140 Surrogates <br /> Tributyl phosphate 36-152% 36-152% <br /> Triphenylphosphete 36-152% 36-152% <br />' <br /> Page 1 <br /> <br />