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'Tn-ono An-�1�rcic i til�nr-atnr�� Tnr <br /> 3423 investment Boulevard, #8 • Hayward, California 94545 Facsimile (510) '783-1512 <br /> :. LOG NUMBER: 5974 <br /> DATE SAMPLED: 11/03/95 <br /> DATE RECEIVED: 11/09/95 <br /> DATE ANALYZED: 11/09/95 and 11/10/95 <br /> DATE REPORTED: 12/06/95 <br /> CUSTOMER: Clearwater Group, Inc. <br /> ' REQUESTER: Jeanna Hudson <br /> ' PROJECT: No. D-101, Conrady, Stockton <br /> Sample Type: Vapor <br /> _VW-1 post-Sp arse VW-2 Post-Sparge VW-1 Pre-Sparge <br /> Method and Concen- Reporting Concen- Reporting Concen- Reporting <br /> Constituent: Units tration Limit tration Limit tration Limit <br /> Modified DHS Method. <br /> Ptal Petroleum Hydro- <br /> carbons as Gasoline mg/m3 6,300 200 1,700 200 2,200 200 <br /> ' EPA Method 8020 for- <br /> Benzene mg/lf 76 2.0 25 0.4 25 0.4 <br /> Toluene mg/n3 32 2.0 9.7 0.4 12 0.4 <br /> Ethylbenzene mg/m3 42 2.0 20 '0 '4 19 0.4 <br /> Xylenes mg/m3 64 6.0 8.4 11.2 132 1 .2 <br /> I' <br /> I <br /> { l ' VW-2, Pre- <br /> Method and !'i Concen- Reporting i I <br /> Constituent: II I Units , tration Limit l ! <br /> Modified DHS Method: <br /> ' Total, Petroleum Hydro- I <br /> carbons as Gasoline mg/m3 ND 10 <br /> ! EPA Methd,8020 for: 3 <br /> Benzene m m 0.17 O.IIO <br /> Toluene , mg/m3 0 16 0.10 � I <br /> I `Ethyl benzene�' ! Mg/M3 ND 0.I <br /> Xylenes j' l mg/fi�31 I ' NP, 0 30 f ' <br /> I ` <br /> I'� II I I I IiEI�I I I I I I I �.I'' � I'' i I i I` ' Eul I`it <br /> I' ncentrations reported as ND were not (detected lit'' or, aboveIi the' reportltng ;l imlti! <br /> I I I IIS I l l �,, f 1 k <br /> P I i <br /> I. I <br /> !I � I I II Il <br /> Foundrn'gGMember`of the Association of California Testing Laboratories <br /> I� <br /> � <br />