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1 <br />1 ~]~11~ <br />CORE LABORATORIES <br />I S U R R O G A T E R E C O V E R I E S R E P O R T <br />Job Number.: 971377 Report Date: 06/30/97 <br />I CUSTOMER: Greys[one PROJECT: COSTILLA CO LANDFILL ATTN: Nick Mathis <br />Surrogate Units <br />Phenol-db ug/L <br />Lab 1D Matrix OC Type Dilution Result <br />MB 1.00 30.68 <br />~ LCS 1.00 29.58 <br />LCD 1.00 34.82 <br />71377.1 1.00 30.73 <br />971377.2 1.00 24.84 <br />971377-3 1.00 30.42 <br /> <br /> Surrogate Units <br /> Terphenyl-d14 ug/L <br />True Value Percent Recovery Flag Date Time <br />100.40 31 06/07/97 0057 <br />100.40 29 06/07/97 0158 <br />100.40 35 06/07/97 0259 <br />100.40 31 06/07/97 0400 <br />100.40 25 06/07/97 0501 <br />100.40 30 06/07/97 0602 <br />• <br />Lab ID Met rix OC Type Dilution Result True Value Percent Recovery Flag Date Time <br /> MB 1.00 53.63 50.02 107 06/07/97 0057 <br />' LCS 1.00 53.18 50.02 106 06/07/97 0158 <br /> LCD 1.00 54.36 50.02 109 06/07/97 0259 <br />971377.1 1.00 40.86 50.02 82 06/07/97 0400 <br />971377-2 1.00 43.05 50.02 86 06/07/97 0501 <br />71377.3 1.00 42.49 50.02 85 06/07/97 Ob02 <br /> Method .............: EPA 608 Batch........... ...: 22432 <br /> Method Code........: 608 Analyst ............: smc <br />Surrogate Units <br />' 2,4,5,6-Tetrachloro-m-xylene ug/L <br />Lab ID Matrix OC Type Dilution Result True Value <br />MB 13.97 20.04 <br />LCS 15.56 20.04 <br />LCD 19.32 20.04 <br />971377.1 10.44 20.04 <br />971377.2 13.69 20.04 <br />971377.3 11.75 20.04 <br />' Surrogate Units <br />Decachlorobi phenyl ug/L <br />Lab ID Matrix DC Type Dilution Result True Value <br />MB 24.00 20.04 <br />LCS 54.64 20.04 <br />' LCD 54.55 20.04 <br />Page 37 <br />Percent Recovery Flag Date Time <br />70 06/06/97 2316 <br />78 06/06/97 2345 <br />% 06/07/97 0014 <br />52 % 06/07/97 0043 <br />68 06/07/97 0112 <br />59 X 06/07/97 0141 <br />Percent Recovery Ft ag Date Time <br />120 06/06/97 2316 <br />27S X 06/06/97 2345 <br />272 X 06/07/97 0014 <br /> <br /> <br />