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Clayton <br /> EtJVIRON7vtENTAL <br /> CONSULTANTS <br /> Page 2 of 2 <br /> INDUSTRIAL HYGIENE <br />' ORGANIC LABORATORY ANALYSIS <br /> Sample I D See below Client Vapor Extraction Technolog <br />' Sample Received 01/29/91 Client Ref No SOUTHLAND <br /> Samples Analyzed 01/30/91 Lab Client Code 76377 <br /> Sample Matrix LG CHAR TUBE Project No 9101236 <br />' Sample <br /> Lab Volume Front Back Total Concentration <br />' No Sample I D (Liters) Compound (mg) (mg) (mg) (mg/m3) (ppm) <br /> -01 MW-1 10 Benzene <0 008 <0 008 <0 008 <0 8 <0 3 <br />' Ethyl benzene <0 008 <0 008 <0 008 <0 8 <0 2 <br /> Toluene <0 004 <0 004 <0 004 <0 4 <0 1 <br /> TPH as Gasoline 1 4 <0 1 1 4 140 -- <br /> Xylenes <0 02 <0 02 <0 02 <2 <0 5 <br /> -02 MW-4 10 Benzene <0 008 <0 008 <0 008 <0 8 <0 3 <br />' Ethyl benzene <0 008 <0 008 <0 008 <0 8 <0-2 <br /> Toluene <0 004 <0 004 <0 004 <0 4 <0 1 <br /> TPH as Gasoline 1 1 <0 1 1 1 110 <br /> Xylenes 0 04 <0 02 0 04 4 0 9 <br /> -03 METHOD BLANK -- Benzene <0 008 <0 008 <0 008 -- -- <br /> Ethyl benzene <0 008 <0 008 <0 008 -- -- <br />' Toluene <0 004 <0 004 <0 004 -- — <br /> TPH as Gasoline <0 1 <0 1 <0 1 <br /> Xylenes <0 02 <0 02 <0 02 -- -- <br /> 1 <br /> < = Less than the indicated limit of detection (IAD) <br /> = information not available or not applicable <br /> Xylene results were corrected using 92% desorption efficiency <br /> Compound Limit of Detection (mg) Method Reference <br /> t Benzene 0 008 NIOSH 1501 (Modified) <br /> Ethyl benzene 0 008 NIOSH 1501 (Modified) <br /> Toluene 0 004 NIOSH 1501 (Modified) <br />' TPH as Gasoline 0 1 NIOSH 1550 (Modified) <br /> Xylenes 0 02 NIOSH 1501 (Modified) <br />