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Sep-5.-C rg:12; Page 4 Sent By:, BASELINE; " ' ,- 510 420 1707, R BASELINE i �..�....-.. Mr. Stuart 01sen 5 September 2000 Page 3 acceptance at local disposal facility, two Of the four fill connposite. To classify the soil for accep . samples would furtherbe composited into one composite sample and the four native clay soil �' ' cposite samples would be composited into two composite satrapies''. These omthree composite . '. sasitples would be analyzed for the following,"as required by, Allied Waste .for waste h # acceptance evaluation for nonhazardous waste,•3 • Semivolatile organic compounds(SVOCs)by EPA Method 5270 Volatile'organic compounds(VOCs)by EPA Method 8260 ? Total petroleum hydrocarbons(TPH)as gasoline,diesel,and motor oil by Modified EPA Method 8015 ; Pesticides/polychlorinated biphenyls (PCBs)by.EPA Method 8080 v ' ' Cadmium, chrorrtiurn, nickel, and zinc by EPA Method 6010 • , We propose to use direct-push technology to colidet soil samples since flus technique would w minimi volume volue of soil cuttings generated. Continuous samples would be collected to. identify the litholog' All samples retained for chemical analysis would be handled in accordance with BASELINE's Standard Operating Procedures and submitted to a State- certified laboratory for analysis. The soil cuttings that are generated would be placed in 5S- gallon drums,sealed,labeled, and retained at the site. Disposal of the soil is not included in b, this prcapbsal as disposal o€this material can be conducted simultaneously with disposal of the 'excavated soils.I:7econtaminatiori water would also be drummed and retained on-site.. We would evaluaie the,total and soluble lead and mercury soil quality data in accordance with f Solid Was to Physical. tiori'o � Y E value .the statistical methodology contained in Test Methods for ., �kie twa-tailed. and'Chernical Methods, SW-846,prepared by U.S.EPA. We would estimate 80 percent upper confidence limits for these two contaminants. We would classify each waste ;stream to determine whether the waste streams would constitute a nonhazardous,California- , -hazardous, or Federal-hazardous waste,AL If the waste were determined to be nonbazardous, we would review the: soil quality data collected,to determine whether the waste'could be accepted at the Allied Waste facility as,a J. it quality data concentrations arc within Allied Waste's : waste_ If the so y , Class II nonhazardous Q . threshold levels,we would coordinate with Allied Waste to obtain approval for., isposal ofthe waste soil at their facility in Stockton, California. If the.soils could not be ccepted at the Allied Waste facility,we would provide tate City with information on other Class lI disposal F.4 facilities, as needed 'SeeaiLse of thetimeconstraints of the construction schedule and sample hold time these analyses would'ba, i! attalyzad imnitdiately after sample collection,and not after the waste char a.ctorizWoo has been conducted ; , A- a-