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0,5 October 2000.
<br /> AGE`-NC Project No. 95-.0197
<br /> Page 5 of 6 ;
<br /> 4.1 SOIL PROFILE
<br /> 1 !'
<br /> Generally;'brown; danip,,'silty clay was encountered from 5 -feet bsg to,approximately 10 feet bsg:
<br /> From '10 feet to 45 feet bsg the,lithology:consists mainly of white to' dark tan; saturated, poorly.:`
<br /> graded sand and silty sand. Boring"
<br /> logs are included in Appendix A.
<br /> 4.2 FIELD EVIDENCE OF HYDROCARBON-IMPACTED SOIL AND GROUND WATER ,
<br /> ,r, , ;
<br /> Moderate hydrocarbon odor was noted in soil'samples collected.from probe boring B-.8"at•depths o..
<br /> 30-feet and 35 feet bsg.Petroleum hydrocarbon odor-is noted on boring logs contained in Appendix
<br /> 1 i r
<br /> 8 p ,
<br /> Or amc va'or was detected in"soil'samples from•B-,7 and�•B'-8 using a PID at concentrations as high
<br /> as 20 parts per million (ppm): Organic„vapor field measurements are suiYamarized on`the boring logs
<br /> contained.in Appendix A:'.!^3
<br /> 4.3- 'ANALYTICAL RESULTS OF SOIL, SAMPLES
<br /> •A total of nine soil sainples were,'suhmitted to DHS-certified laboratories (McCarrlpbell'Analytical, -
<br /> Inc.) for analysis as'noted above:TPH-g,BTEX compounds, and fuel,oxygenates were not detected
<br /> above laboraorty reporting'limits in the sof 1 'sample.anlysis.
<br /> �TPH=d-was detected in the soil',,: tnple collected froln,'probe boring B=7 at 20'feet.bsg at a
<br /> concentration`of'1'.8 m Arial cal results 6f,soil,salnples are summarized in Tables i s The
<br /> &g• y
<br /> ' laboratory report•(McCambell'Aiialytical Inc:',Lab,I.D. 4607,5 through 46083) andichainWof custody ,
<br /> ' are included jri'Appe'ndix,B.
<br /> ! .
<br /> 4.4 ANALYTICAL RESULTS'OF'GROUND'WATEXSAlyIPLES
<br /> Grab ground water samples were collected, from borings B-9'and'B-10 'and.were submitted to
<br /> ' DHS=certified laboratories for`analysis as ..noted',above.TPH=g; 'BTEX:,compounds; and fuel
<br /> axygenates..were not detected abovealaboraorty,r orting:limits Irl the ground water sample anlysls.,
<br /> •: .,s ,: --':_ .,,i '.r -,i: .. ,.• .._._.. .� ,.p,. a,,,i., ,.). -.,.r ,S.�d'6:.a� _ik.,�:a 1 -.r-•,
<br /> TPH=d was detected in the ground water sainple collected'from boring B'9.at a concentration of 59,
<br /> h ?
<br /> µg/l
<br /> " Advanced GeoEnvironmental,Inc.
<br />
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