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t, <br /> May 14., 199.0 <br /> 'Job 'No'. 203 175 3289 <br /> .A schedule .;for aeration .and sampling- of soils at former Chevron <br /> . ,Service Station #9-0342 <br /> .The- site contains two soil. piles; soil piles A., and B, containing <br /> approximately 500 and 100 cubic.-yard's respectively, as described _in <br /> the Excavation Soil . -Pile Sampling Results -report' by . Groundwater <br /> Technology, Inc, - of April '19, 1990... A permit -to engage -in, <br /> uncontrolled aeration:'o' f -the,Total- Pet roleum.Hydrocarbons (TPH) -as- <br /> gasoline in soil pile `8 was granted on .April 25, 1990 by the San <br /> Joaquin County Air Pollution Control Boar& (SCAPCB) . <br /> Soil pile-. A 'was below-the . SCAPCB :action 'levels of 50 parts- per <br /> million (ppm) ', and therefore exempti .from rules for . rate of <br /> uncontrolled .aeration. Soil pile..B (with TPH' as=gasoline detection <br /> at between' .22- and 88 .ppm) was .turned and spread on May 9, 1990 as. <br /> permitted for uncontrolled aeration bythe SCAPCB. The soil piles <br /> Will be turned. -and spread and sampled on the following schedule: <br /> DATE SOIL PILE B SOIL .PILE A <br /> 5/9/90 turn/spr.ead <br /> 5/16/90 turn%spread turn/spread <br /> . 5/23/90 ,, . . _sample ; sample <br /> Sail samples will be. analyzed. for -TPH-as-gasoline with BTEX .on a 2- <br /> week turnaround time. The laboratory MDL for TPH will be 1 ppm and <br /> for BTEX will be .005 ppm. <br /> f <br /> f <br /> GROUNDWATER <br /> ❑❑TECIiNOLOGY, INC. <br />