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FRM-West inc! ' <br /> otekho Drive <br /> rice ?oJ <br /> -9 Deceanoer 1 93 alnut Creex CA 94596 <br /> 1 946-0455 <br /> X10)0) 946-9968(Fax) <br /> tiir Terry Schuh <br /> Zan Joaquin Vallev <br /> L nifiea Air Pollution Control Distract <br /> 4230 Kiernan Avenue, x#130 <br /> Modesto, CA 95356 <br /> ERM Subject Soil Aeration Project at 1325 & 1515 ERM <br /> W Weber Avenue, Stockton, <br /> California <br /> Dear Mr Schull <br /> On behalf of Catellus Development Corporation, ERM West <br /> Inc (ERM) is writing this letter to convey the information on daily aeration <br /> log and sampling results, per your permit requirement, for the petroleum <br /> hvarocaroon impacted soil at the subject tacwty <br /> The soil excavanon and onsite stockpiling was completed on 25 October 1993, <br /> the soil aeration began on the same day The aeration pale was covered with 6 <br /> mil polyethvlene sheeting at all tames, except wrien adding or removing soil. <br /> The aeration pale was secured with a padlocked fence when the site was <br /> unattended The soil excavated from 1515 W Weber Avenue (referred to as <br /> Site 1) was an estimated volume of 444 cubic vards and the soil excavated <br /> from 1325 W Weber Avenue (referred to as Site 2) was an estimated volume <br /> or 1467 cubic vards. The approximate dimensions of the soil aeranon pale are <br /> shown in Figure 1 <br /> A John Deere 751-IP tractor with disc-tilling attachment was used to aerate the <br /> soil for a total of 16 days The rate of soil tilling for Site 1 and Site 2 was, 60 <br /> cubic yards per day and 600 cubic yards per dav, respectively Table-1 below <br /> shows the specific dates on which soil aeration by tilling was undertaken at <br /> the site The soil aeration task was shared by EF-M and by Sunriver <br /> Engineering of Brentwood, California from 25 October 1993 to 15 November <br /> 1993 <br /> I <br /> I <br /> I <br /> A Member of the Env—mental <br /> Resources M-aaSc-am Group <br />