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TABLE 2. Concentrations of Selected Constihtents In Groundwater Del Monte Plant No.33 - Disco Site - Stockton,California Concentration R Monitor�n9 Eft a s r 3 p p c..: -s •,.W611tY-�S.�Sam le•Date -TPN 1,2DCA. EDB. 'Benzene ..Toluene <tiettzene .:�:'7Ciene.�i�f-TBA,.•:,`,MTBE,-*-,.:..,4S,D[PE„ MW-DIS-11s_ 2/2112002 64 1 180 NO OA5 NO ND NO NO NO NO NO NO NS - 5/13/2002 76 1 1B0 NO OA2 ND NO NO ND NO NO NO NO NS 81 1 212 0 0 2 NO 110 NO 0.50 NO NO NO ND NO NO NO NO NS - 1219/2002 - NS NS NS - NS NS NS NS NS NS NS NS NS NS - - 3/4/2003 NO 110 NO NO NO NO ' NO ND NS NS NS NS NS - - MW-DIS-11d 2/21/2002 NO NO NO ND NO NO NO ND NO ND NO NO NS - - 5/13l2002 NO NO NO ND NO NO NO ND NO NO NO NORNS 8/12/2002 NO NO NO ND NO NO NO ND NO NO NO NO - - _ 1219!2002 NS NS NS NS NS NS NS NS NS NS NS NS - - 3/4/2003 NO NO NO Nb .NO NO � NO ND NS � NS NS NS MW-DIS-12 2!2112002 NO NO ND NO NO NO NO ND ND NO NO ND - - 5F13f2002 NO NO .ND NO NO NO ND ND NO NO NO ND am22002 NO 0.90 ND NO NO ND ND NO NO NO NO ND - 12/9/2002 NS 1 0.66 NS NS NS NS NS NS NS - NS NS I NS -NS - 314l2003 NO ND NO NO NO ND NO NO NS_ NS NS NS NS _ MW4DIS-13 2121/2002 NO NO NO NO NO NO NO NO NO NO NO ND NS V1 312 00 2 NO ND NO NO NO ND - NO NO NO NO NO NO NS - 8/12l2002 NO ND NO NO ND ND NO NO NO NO ND NO -NS 127912002 - NS NS NS NS NS NS NS NS NS NS NS NS NS - 3/412003 NO ND NO NO ND NO NO NO NS HS NS NS NS - - - MW-DIS-14s 221/2002 NO 8.2 NO NO ND NO NO NO NOBN5D--- ND NO NS 511 312 0 02 ND- 7.2 NO NO NO NO NO NO 7.0 NO NO NS - - - 8/12/2002 ND 4.2 NO NO NO NO NO NO 9.9 NO NO NO - NS 12!912002 NS 4.4 NS NS NS NS NS NS 2.5 NS - N$ NS 3152003 NO 4.2 NO ND ND NO NO NO 1.4 NS NS NS MW-DIS-14d 2/21/2002 NO NO NO ND ND ND NO NO NO NO NO N,95/13/2002 NO NO ND ND' NO NO NO ND ND NO Np NS 0/12/2002 NO NO NO NO NO NO NO NO - ND ND ND -NS1219l2002 NS NS NS NS NS NS NS NS NS NS NS NS - - 3l512003 NO NO ND NO NO NA NO NO NO -NS NS NS NS - - .- MW-DIS-15 3/4/2003 NO 10 NO NO NO NO NO ND ND Np ND . Nt7 - Trip Blank 8772!2002 NO I NO IND NO ND - 12l9/2002 NS NS NS I NS I �NS NS NS NS NS NSI NS NS NS - Notes: All analyses performed by EPA Method 801518020 - - - - - TCLR EPA Toxicity Characteristic Leachate Procedure for Identifying Hazardous Waste MCL: California Maximum Contaminant Level for Drinking Water - <5.0 Below Detection limit of 5.0 ug/L - - - <0.5 Below Detection limit of 0.5 uglL EDB ethylene dibrornide 1.2 DCA - 1,2-ditloroethane - - Sample collected by minimum aeration technique _Samples collected but not analyzed due to lab error/not confirmed by GUMS Samples collected on 6112197 were analyzed using EPA Method 8240. - SOLD Bold indicates results above the detection limit - NS: Not Sampled - - - - NA: Not Analyzed '3119199 MW-01S-2 re-sampled on this date and analyzed by EPA Method 801518020. Defection not confirmed by GAMS. - MTBE was not detected in the original 2111199 sample(analyzed by EPA!Method 801518020)and - . confirmed by GCIMS Method 8260) 12280.MDNIST03E018 _ - - CDpyright2003,t0einfelder.Ire. - - - - - - - Page 18 of 78 - - - April 24,2003.