Laserfiche WebLink
ie <br /> j. <br /> HENKLEOCIATEa, <br /> Consultl:,g Geologists <br /> Economic and Geotechnical Geology,Geophysics <br /> 14 March 1991 <br /> Margaret Lagado <br /> Box <br /> Environmental Health Dept. <br /> POox 2W9 <br /> SU ci:ton,CA. 952{}2 'pQ <br /> Dear.Margaret: <br /> I have reviewed a report submitted to you by WHF Environm'nQ Clultants, <br /> Inc:; entitled "Royal t7as Savings&Lsan-Final Soil Remediation Repork-Amend- <br /> ment#V Thii i-eport deals with soils remediation activities at the'fo►iner Jackpot <br /> Service Station at 510 North Main Street,Manteca, California. <br /> Approxin'ately 903 CYD of contaminated SOUG were treated at this'site between <br /> 13 P t bet and IG November, 1990. The method of treatment was air farming;,a roto <br /> tr1Zer,was used to mix the soils. The soils were tilled a total of 12 timesdunng,l�w one <br /> "month rerrtediation period. <br /> ., Inftial kmpling of the contaminated soils from four(4)locations showed the <br /> following contamination levels{avf.rage)"(10/3/90): " <br /> ` Benzene 2. 0npb . <br /> Toluene 1.33ppb <br /> Ethyl Benzene <br /> Xylene ti.38ppb <br /> On November 10, 1990,fou:(4) samples were taken from each"of the four(4) <br /> treatment bookers at the site.(toW of 16). Salnples firom each bunker were eomposited <br /> in:0 one repr=rltative sample per bunker. The average residual contamination Ieudls ` <br /> of the remediated soils at this sate were Q follows: <br /> -Benzene ND <br /> 76tilene <br /> _r -- - - <br /> Ethyl 13enzene ND <br /> r <br /> Total Xylene '. " 4.03ppb <br /> 230 FINCH WAY a CARSON CITY,W89704 e (702)849-1683,: <br />