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Mr.Paul Fry- NWE Project 05-001500 July 31, 1998 Page 4 of 7 indicated the presence of organic vapors in soil sample S133D, which was collected at approximately 20 feet bgs. None of the other soil samples collected indicated the presence of organic vapors. PID readings are recorded on the log for each soil boring, which are contained in Attachment A. RESULTS OF LABORATORY ANALYSES Three soil-and three groundwater samples were submitted to West Environmental Laboratory, a California Department of Health Services (DOHS) certified analytical laboratory, following proper -chain of custody procedures. - Soil and groundwater samples collected at the site were analyzed for TPHg, 'TPHm, BTEX, and-MTBE by-EPA Method 801:5 Modified, and VOCs by EPA Method 8010. The soil and groundwater sample analytical results are compiled-in Tables 1 and 2. Copies.of certified analytical reports are contained in Attachment B. TABLE.1 Soil Sample Analytical Results 735 North Main Street,-Manteca,CA (concentrations in'milligrams peeKilogram [approximately equivalent to-parts per million]) Soil Sample Date Depth TPHg' TPHm2 BTEX' VOCs' MTBE5 _. Location- Sample (feet Collected I below .. grade) SBAB 7/16/98 10- <1.0 <10 <0.005 ND' <0.05 SB=2B 7/16/98 - 10 <1.0 1-10 1-0.005 - -ND 1-0.05 SB=3B 7/16/98 - 20 X1.0 1-10 <0.005 —ND <0.05 TPHg' = Total petroleum hydrocarbons as gasoline. TPHm2 = Total petroleum hydrocarbcns as motor oil. BTEX' = Benzene,toluene,ethylbenzene;and xylene. VOCs' = Fcr a complete listing of volatile organic compounds analytes and detection limits,see attachment B. MTi3E5 = Methyl,tertiary butyl ether. ND' = Not detected above laboratory detection limits. A review of the -analytical results of soil samples collected from the subject Property indicates: • TPHg, TPHm, BTEX, MTBE, and VOCs. were not detected in soil samples collected at three selected locations on the subject Property.