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COVE <br />CORE LABORATORIES <br />O U A L 1 T Y A S S U R A N C E M E T H O D S <br />R E F E R E N C E S A N D N O T E S <br />Report Date: 09/16/98 <br />PATER LIMITS SOIL LIMITS <br />Recovery RPD Recovery RPD <br />VOLATILE ORGANICS <br />Methods 602/8020 Surrogate <br />Bromofluorobenzene 89-110% 78-123X <br />Methods 602/8020 Spike/Spike Duplicate <br />Benzene 39-1507. 26 75 -126X 25 <br />Ethylbenzene 32-160% 25 60-140X 25 <br />Toluene 46-148X 25 70-130X 25 <br />Xylenes 75-1257. 25 61-139X 25 <br />Method 8015 Mod. Spike/Spike Duplicate <br />TVPH 75-125% 20 48.152X 20 <br />TEPH 54-135X 20 54.1357. 20 <br />Methods 624/8240/8260 Surrogates <br />Dibromof luoromethane 86-1187. 80.120X <br />Toluene-(d8) BB-110X 81-117X <br />4-Bromofluorobenzene 86-115% 74-1217. <br />Method 524.2 Surrogates <br />4-Bromofluorobenzene 80-1207. <br />1,4-Dichlorobenxene-d4 80-120X <br />Methods 624/8240 Spike/Spike Dupl icate <br />1,1-Dichloroethene 61-145% 14 59-172X 22 <br />Trichloroethene 71-1207. 14 62-137X 24 <br />Benzene 76-127X 11 66-142% 21 <br />Toluene 76-125X 13 59-139X 21 <br />Ch lorobenzene 75-1307. 13 60.133X 21 <br />Method 8260 Spike/Spike Duplicate <br />1, 1-D ichloroethene 70-130% 14 70-130X 22 <br />Trichloroethene 71-120% 14 70-130X 24 <br />Benzene 76-127% 11 70-130% 21 <br />Toluene 76-125% 13 70.130% 21 <br />Lhlorobenzene 75-130% 13 70-1307. 21 <br />Method 524.2 Spike/Spike Duplicate <br />1,1-Dichloroethene 80-120X 14 <br />Trichloroethene 80-120% 14 <br />Benzene 80-120X 11 <br />Toluene 80-120% 13 <br />Chlorobenzene 80-120X 13 <br />PESTICIDES AND PC8'S <br />Methods 608/8080 Surrogates <br />Tetrach loro-m-xyl ene 60-150X 60-150X <br />4,4~-Dichlorobi phenyl 60-150X 60-150X <br />Decachlorobi phenyl 60-1507. 60-1507. <br />Method 8140 Surrogates <br />Tributylphosphate 36-152% 36-1527. <br />Triphenyl phosphate 36-152% 36-152X <br />Page 1 <br />.k.mw~..~~i~. o,.~we-~~o~~~'~m.>.. co. ~,idrro.....m..~~-.~,V~.o,.,...~,~e,..n...omo..vo wa..~~....or~:~+.,-.,,,o ~M~,r.a. oa. ~,.. ,o~.~~.. .. ~.<u a~ <br />.,rya w. rr o. ~~... ~„,,,.v. o-oo~r ..i ~~ ..~.,.o.~io~..i~..,d..~.~,.oo~. ~ v ,.~.a ~.o ,m ..~.rouuK. m.. ~~ w.. ~e~ m,.»K.o ,.~o~.>.. o. ~ ..,.. in «,~..,,,~ o.,~ m co..,ro.a,o.,A <br />