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4K4 Groundwater Analytical Results Chevron Service Station#9-2033 508 West Charter Way Stockton,California EXPLANATIONS Groundwater monitoring data and laboratory analytical results prior to May 31,2000 were compiled from report%prepared by Blaine Tech Services Inc 1,2-DCA= 1 2 Dii hloroethane Cd=Cadmium Ph=Lead (ppb)=Parts per billion Cr=Chromium 7n=Zine 106= Total Oil and Grease Ni=Nickel --=Not Analyzed 2-Meth)lnaphtalene and Naphthalene were 8 7 and 33 ppb respectively 2 2-Methyinaphtalcne and Naphthalene,were 8 7 and 50 ppb respectively 2 Naphthaline was detected at 34 ppb ' 2-Methylnaphialene and Naphthalene Here 5 3 and 35 ppb respectively S Diethvlphthalate was detected at b 9 ppb ° Naphtlialcne was detected at 6 8 ppb 7 All other bernivolatile Organic C ompounds(SVOC s)by EPA Method 8270 were ND,except for sts(2-eth%Ihexyl)phthalate was detected at 27 ppb 8 All other Volatile organic Compounds(VOC%)by EPA Method 8010 were less than the reporting limit All other SVOCs by FPA Method 8270 were less than the reporting limit,except for f3i,,(2-c1hylhexyyl)phthalate was detected at 12 ppb 10 All other VOCs by LPA Method 8010 were less then the reporting limit except for Chloiotorm which mas detected at 17 ppb I Laborator} report indicates that this Sample was anal)red outside of the CPA recommended holding tune 12 All sample containers wexe broken on this date I i All other VOCs by EPA Method 8021 were less then the reporting limit i' All other SVOC,,by ITA Method 8270 were less than the reporting limit,except for Bis(2 ethyIbex)1)phthalate was detected at 71 ppb '` All other SVOCs by EPA Method 8270 were less than the,reporting limit except for 13i%(2-cthvIhexyI)ph1haIa(e was detected at 26 ppb 16 All other SVO[,s by LPA Mt.thod 8270 were less than the reporting limit,except for Bis(2-etbylhexyl)phthAate w,s detected at 13 ppb 77 All other SVOC9 by EPA Method 8270 were less than the reporting limit is All other SVOC%by EPA Method 8270 Wert le%s than the reporting limit,except for Bis(2-eth)lhexyI)phtbalate was detected at 23 ppb,and Chloroform at I ppb 19 All othei SVOCs by EPA Method 8270 wem less than the reporting limit,i xcept for Chloroform was detected at 15 ppb 20 All other SVOC%by EPA Method 8276 were less than the reporting limit,except for Diethylphihalate was detected at 2 ppb and bis(2-Ethylbe♦yl)phthalate was detected at 16 ppb 21 All other SVOCs by EPA Method 8270 were less than the reporting limit,except for Bts(2-ethylhcxyl)phthalate was detected at 7 ppb 22 Laboratory report mdicate5 this sample was extracted past the 7 day holding time for TPM '-; All other SVOC%by i PA Method 8270 were les%than the reporting hinit,except for Bis(2-ethylheryi)ph1halate was detected at 4 ppb 2' All other SVOCs by EPA Method 8270 were less than the reporting l , pt for Bis(2-cthylheayl)phthalate was detected, imitexcept 2 ppb 25 All other SVOCs by EPA Method 8270 were les;.than the reporting limit,ewept for Bis(2-e1hylhexy])phthalate was detected at 3 ppb 9-2033 xisl1386847 12 As(105108106