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IDSequoia 819 Striker Avenue, Suite 8 <br />Sacramento, CA 95834 <br />Analya lytic a (916) 921-9600 <br />tical fAX (916) 921-0100 <br />Kleinfelder - Stockton Project: N/A Sampled: 6/14/99 to 6/20/99 <br />72825 East Myrtle Street Project Number: 20-3978-03.W36 Received: 6/22/99 <br />Stockton, CA 95205 Project Manager: Tony Martin Reported: 7/12, 23/99 <br />Volatile Organic Compounds by EPA Method 8260A/Quality Control' <br />Sequoia Analytical - Sacramento <br />Date Spike Sample QC Reporting Limit Recov. RPD RPD <br />Analvzed Level Result Result Units Recov. Limits % Limit % Notes* <br />nk continuedl <br />Vtyrene <br />9060419-BLK1 <br />6/30/99 <br />ND <br />ug/kg <br />100 <br />1,1,1,2 -Tetrachloroethane <br />ND <br />100 <br />1,2,2-Tetrachloroethane <br />1tetrachloroethene <br />ND <br />100 <br />ND <br />" <br />100 <br />oluene <br />ND <br />100 <br />1,2,3-Trichlorobenzene <br />ND <br />100 <br />1,2,4-Trichlorobenzene <br />ND <br />100 <br />1,1,1 -Trichloroethane <br />ND <br />100 <br />1,1,2 -Trichloroethane <br />ND <br />100 <br />Trichloroethene <br />ND <br />100 <br />Trichlorofluoromethane <br />ND <br />500 <br />1,2,3-Trichloropropane <br />ND <br />100 <br />1,2,4-Trimethylbenzene <br />ND <br />100 <br />ND <br />100 <br />J13.5-Trimethylbenzene <br />Vinyl chloride <br />;' <br />ND <br />" <br />500 <br />Total Xylenes <br />ND <br />100 <br />Surrogate: Dibromofluoromethane <br />2500 <br />2590 <br />70.0-130 <br />104 <br />1,2 -DCA -d4 <br />2500 <br />2780 <br />70.0-130 <br />111 <br />Surrogate: <br />urrogate: Toluene -d8 <br />2500 <br />2760 <br />70.0-130 <br />110 <br />Surrogate: 4 -BFB <br />2500 <br />2240 <br />70.0-130 <br />89.6 <br />klne <br />9060419-BS1 <br />6/30/99 <br />2500 <br />2590 <br />ug/kg <br />70.0-130 <br />104 <br />Chlorobenzene <br />2500 <br />2520 <br />70.0-130 <br />101 <br />" <br />2500 <br />2400 <br />i <br />70.0-130 <br />96.0 <br />21,1-Dichloroethene <br />Toluene <br />2500 <br />2590 <br />70.0-130 <br />104 <br />Trichloroethene <br />2500 <br />2400 <br />70.0-130 <br />96.0 <br />Surrogate: Dibromofluoromethane <br />2500 <br />2800 <br />70.0-130 <br />112 <br />urrogate: 1,2 -DCA -d4 <br />2500 <br />2950 <br />70.0-130 <br />118 <br />'Surrogate: Toluene -d8 <br />2500 <br />2800 <br />70.0-130 <br />112 <br />Surrogate: 4 -BFB <br />2500 <br />2290 <br />70.0-130 <br />91.6 <br />Matrix Spike <br />9060419 -MSI <br />5906400-04 <br />Benzene <br />6/30/99 <br />2500 <br />ND <br />2280 <br />ug/kg <br />60.0-140 <br />91.2 <br />Chlorobenzene <br />2500 <br />ND <br />2240 <br />60.0-140 <br />89.6 <br />1-Dichloroethene <br />t1oluene <br />2500 <br />ND <br />1990 <br />60.0-140 <br />79.6 <br />2500 <br />ND <br />2290 <br />60.0-140 <br />91.6 <br />Trichloroethene <br />2500 <br />ND <br />2110 <br />60.0-140 <br />84.4 <br />Surrogate: Dibromofluorornethane 2500 2420 70.0-130 96.8 <br />Surrogate: 1,2 -DCA -d4 2500 2570 70.0-130 103 <br />Surrogate: Toluene -d8 2500 2460 70.0-130 98.4 <br />- Sacramento <br />G' <br />:` <br />-Ke7er to ena o7 report7or text of notes <br />definitions. <br />Page 25 of 33 <br />