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Sequoia <br />Date Prepared <br />819 Striker Avenue, 5uke 8 <br />Sacramento, CA 95834 <br />t!D <br />Extraction Method EPA 5030B [P/T1 <br />Blank <br />(916) 921-%W <br />A„W Analytical <br />FAX equo alabs921 c 00 <br />www sequolalabs coin <br />0 <br />Gettler-Ryan - Dublin <br />Protect Chevron 9-5775, Lodi, CA <br />Sampled <br />5125100 <br />6747 Sierra Court, Ste I <br />Protect Number 346408 85 <br />Received <br />5/26/00 <br />Dublin, CA 94568 <br />Project Manager Deanna L Harding <br />Reported <br />6/I2/00 <br />Volatile Oxygenate Compounds by EPA Method 8260A/Quahty Control <br />Di -isopropyl ether <br />Sequoia Analytical - Sacramento <br />ND <br />Date <br />Spike Sample QC <br />Reporting Limit Recov <br />RPD RPD <br />Analyte Analyzed Level Result Result Units <br />Recov Limits % <br />Limit % Notes* <br />Batch 0050274 <br />Date Prepared <br />615/00 <br />Extraction Method EPA 5030B [P/T1 <br />Blank <br />0050274-BLKI <br />Tert-butyl alcohol <br />6/5100 <br />ND <br />ug/l <br />200 <br />Methyl tert-butyl ether <br />ND <br />200 <br />Di -isopropyl ether <br />ND <br />200 <br />Ethyl tert-butyl ether <br />ND2.00 <br />Tert-amyl methyl ether <br />fpND <br />to <br />200 <br />Ethanol <br />" <br />ND <br />to3000 <br />Surrogate 1,2 -DCA -d4 <br />500 <br />518 <br />600-140 <br />104 <br />LCS <br />0050274 -BS 1 <br />Methyl tert-butyl ether <br />6/5100 <br />500 <br />500 <br />ug/l <br />700-130 <br />100 <br />Surrogate 1,2 -DCA -d4 <br />500 <br />532 <br />" <br />600-140 <br />106 <br />LCS Dao <br />0050274-BSDI <br />Methyl tert-butyl ether <br />615/00 <br />500 <br />524 <br />ug/l <br />700-130 <br />105 250 4 88 <br />Surrogate 1,2 -DCA -d4 <br />to500 <br />550 <br />600-140 <br />110 <br />Matrix Spike <br />0050274 -MSI <br />5005402-02 <br />Methyl tert-butyl ether <br />615/00 <br />500 ND <br />506 <br />ug/l <br />600-140 <br />101 <br />Surrogate 1,2 -DCA -d4 <br />0 <br />500 <br />540 <br />600-140 <br />108 <br />Matrix Spike Du p <br />0050274-MSD1 S005402-02 <br />Methyl tert-butyl ether <br />65100 <br />500 ND <br />53 2 <br />ugI1 <br />600-140 <br />106 250 4.83 <br />Surrogate 1,2 DCA -d4 <br />a <br />500 <br />558 <br />600-140 <br />112 <br />Batch- 0060002 <br />Blank <br />Teri butyl alcohol <br />Methyl tert-butyl ether <br />Di -isopropyl ether <br />Ethyl tert-butyl ether <br />Tert-amyl methyl ether <br />Ethanol <br />Surrogate 1,2 -DCA -d4 <br />Date Prepared- 611/00 <br />0060002-BLKI <br />611100 ND <br />If ND <br />it ND <br />Pq ND <br />„ ND <br />" ND <br />" <br />500 588 <br />Extraction Method EPA 5030E [PM <br />ugfl 200 <br />" <br />200 <br />" 200 <br />" <br />200 <br />" <br />200 <br />" 3000 <br />LCS 0060002 -BS 1 <br />Methyl tert-butyl ether 611100 500 528 ug11 700-130 106 <br />Surrogate 1,2 -DCA -d4 500 598 IF 600-140 120 <br />LCS Dup 0060002-BSD1 <br />Methyl tert-butyl ether 611/00 500 516 ug/l 700-130 103 250 287 <br />Sequoia Analytical - Sacramento "Refer to end of report for text of notes and definitions <br />Page 8 of 10 <br />