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CASTLE ANALYTICAL LABORATORY <br /> Environmental Testing Services 2333 Shuttle Drive,Atwater,CA 95301 Phone:(209)384-2930 <br /> Certificate#2480 Fax: (209)384-1507 <br /> Shop Hazard Solutions,Inc. Client Project Name: DSL Sampled: 07-02-20 <br /> P.O. Box 798 Lab Reference Number:2007021 Received: 07-02-20 <br /> Turlock,CA 95381 Sample Description:Water Extracted: 07-07-20 <br /> Attn:Steve Meier Sample Prep/Analysis Method: EPA 5030/8260B Analyzed: 07-07-20 <br /> Lab Numbers:2007021 -04 Reported: 07-13-20 <br /> Sample ID: DSL 3 <br /> VOLATILE ORGANICS -EPA METHOD 8260 GC/MS <br /> REPORTING PQL SAMPLE REPORTING PQL SAMPLE <br /> ANALYTE LIMIT RESULT ANALYTE LIMIT RESULT <br /> (Ng/L) ( /L) (N /L) (ug/L) (Ng/L) /L) <br /> Benzene 0.50 0.50 ND 1,1-Dichloropropene 0.50 0.50 ND <br /> Bromobenzene 0.50 0.50 ND cis-1,3-Dichloropropene 0.50 0.50 ND <br /> Bromochloromethane 0.50 0.50 ND trans-1,3-Dichloropropene 0.50 0.50 ND <br /> Bromodichloromethane 0.50 0.50 ND Ethylbenzene 0.50 0.50 2.7 <br /> Bromoform 0.50 0.50 ND Hexachlorobutadiene 0.50 0.50 ND <br /> Bromomethane 0.50 0.50 ND Isoprop (benzene 0.50 0.50 2.3 <br /> n-Butylbenzene 0.50 0.50 10 -Isopro yltoluene 0.50 0.50 3.7 <br /> sec-Butylbenzene 0.50 0.50 3.7 Methylene chloride 1.0 1.0 ND <br /> tent-But (benzene 0.50 0.50 4.6 Na thalene 1.0 1.0 14 <br /> Carbon tetrachloride 0.50 0.50 ND n-Prop (benzene 0.50 0.50 4.5 <br /> Chlorobenzene 0.50 0.50 ND Styrene 0.50 0.50 1.2 <br /> Chlorodibromomethane 0.50 0.50 ND 1,1,1,2-Tetrachloroethane 0.50 0.50 ND <br /> Chloroethane 0.50 0.50 ND 1,1,2,2,-Tetrachloroethane 0.50 0.50 ND <br /> Chloroform 0.50 0.50 ND Tetrachloroethene(PCE) 0.50 0.50 ND <br /> Chloromethane 0.50 0.50 ND Toluene 0.50 0.50 0.98 <br /> 2-Chlorotoluene 0.50 0.50 ND 1,2,3-Trichlo robe nzene 0.50 0.50 ND <br /> 4-Chlorotoluene 0.50 0.50 ND 1,2,4-Trichlorobenzene 0.50 0.50 ND <br /> 1,2-Dibromo-3-chloro ropane 0.50 0.50 ND 1,1,1-Trichloroethane 0.50 0.50 ND <br /> 1,2-Dibromoethane(EDB) 0.50 0.50 ND 1,1,2-Trichloroethane 0.50 0.50 ND <br /> Dibromomethane 0.50 0.50 ND Trichloroethene(TCE) 0.50 0.50 ND <br /> 1,2-Dichlorobenzene 0.50 0.50 ND Trichlorofluoromethane 0.50 0.50 ND <br /> 1,3-Dichlorobenzene 0.50 0.50 ND 1,2,3-Trichloropropane 0.50 0.50 ND <br /> 1,4-Dichlorobenzene 0.50 0.50 ND 1,2,4-Trimeth (benzene 0.50 0.50 55 <br /> Dichlorodifluoromethane 0.50 0.50 ND 1,3,5-Trimethylbenzene 0.50 0.50 36 <br /> 1,1-Dichloroethane 0.50 0.50 ND Vinyl Chloride 0.50 0.50 ND <br /> 1,2-Dichloroethane(1,2-DCA) 0.50 0.50 ND Xylenes,total 0.50 0.50 62 <br /> 1,1-Dichloroethene 0.50 0.50 ND Oxygenates <br /> cis-1,2-Dichloroethene 0.50 0.50 ND tert-But I Alcohol(tBA) 10 10 ND <br /> trans-1,2-Dichloroethene 0.50 0.50 ND Methyl tert-But I Ether(MTBE) 0.50 0.50 ND <br /> 1,2-Dichloropropane 0.50 0.50 ND Di-Isopropyl Ether(DIPE) 0.50 0.50 ND <br /> 1,3-Dichloropropane 0.50 0.50 ND Ethyl tert-But I Ether(EtBE) 0.50 0.50 ND <br /> 2,2-Dichloro ropane 0.50 0.50 ND F tert-Am I Methyl Ether(tAME) 0.50 0.50 ND <br /> Surrogate Recoveries <br /> Dibromofluoromethane 111% Toluene-d8 107% <br /> 1,2-Dichloroethane-d4 88.8% p-Bromofluorobenzene 117% <br /> Instrument ID:VARIAN MS <br /> Analytes reported as ND were not detected or below the Practical Quantitation Limit. <br /> Practical Quantitation Limit(PQL)=Reporting Limit x Dilution Factor <br /> (Ng/L)= micrograms per liter or parts per billion(ppb) <br /> APPROVED BY: CAL(o�y_ <br /> Clan J. Cone/Laboratory Pirect6ir <br /> Cassandra J.A. Nanney/ hemist <br />