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M M M M i = M T m m i m m m m - 0% Analytical R. 9011 Samples � UST Removal Samples Confirmation Samples,and Stockpile Samples Closure Report Newark Sierra Paperboard Mills 800 West Church Street Stockton California EPA 8015M EPA 8020 EPA 8270 2 2-Methyl- Phenan- Depth TPHd TPHmo B T E X naphthalene threne Sample Id Date (feet) (mg/kg) (mglkg) (mglkg) (mg/kg) (mg/kg) (mglkg) (mg/kg) (mglkg) Excavation Samples T-1 "' 716!98 80 3000 3500 <0 0050 <0 0050 0 020 0 029 NT NT T-2••• 716/98 80 2200 3200 <0 0050 00050 00084 0 024 NT NT T-3••• 716198 80 1700 5200 0 022 0 010 0 054 014 NT NT Soluble Concentration(ug1L) 1800 1 4500 NT NT NT NT NT NT T-4• 716198 90 <1 0 <50 <0 0050 <0 0050 <0 0050 <0 0050 NT NT T-5' 7115198 90 <1 0 <50 <0 0050 <0 0050 <0 0050 <0 0050 NT NT T-6• 7/15198 9 5 10 0 <1 0 450 40 0050 <0 0050 <0 0050 <0 0050 NT NT T-7•• 7115198 10 5-11 0 <1 0 <50 <0 0050 <0 0050 <0 0050 <0 0050 NT NT 7-8•• 7115198 100 1300 1500 <0 0050 0 038 <0 0050 016 60 S-0 Soluble Concentration(ug1L)# <50 <500 NT NT NT NT NT NT T_9•• 7115/98 85 8100 9600 <0 0050 <0 0050 00093 00069 NT NT Soluble Concentration(uglL)# <50 <500 NT NT NT NT NT NT T 10" 7115198 105 <1 0 <50 <0 0050 <0 0050 <0 0050 <0 0050 NT NT T 11 •• 7115198 100 81 <50 <0 0050 <0 0050 <0 0050 40 0050 NT NT T-12 •• 7115198 95 999 1400 <0 0050 <0 0050 <0 0050 0 021 NT NT Soluble Concentration(ug1L)# <66 <660 NT NT NT NT NT NT T-13 7115198 90 <1 0 <50 <0 0050 <0 0050 <0 0050 <0 0050 NT NT T-14 7115198 95 <1 4 <50 <0 0050 <0 0050 <0 0050 <0 0050 NT NT T-15" 7115198 100 <1 0 <50 'Co 0050 <0 0050 <0 0050 <0 0050 NT NT T 16** 7115198 105 <1 0 <50 <0 0050 <0 0050 <0 0050 <0 0050 NT NT T 17•• 7121198 95 4 14 <0 0050 <0 0050 <0 0050 <0 0050 NT NT T 18" 7!21198 95 270 1800 <0 0050 <0 0050 <0 0050 <0 0050 NT NT,rL �} Soluble Concentration(u 1L)# <50 <100 NT NT NT NT NT NT lt" T 19" 7121198 95 230 1100 <0 0050 <0 0050 <0 0050 <0 0050 NT NT Soluble Concentration(ug1L)# <50 <100 NT NT NT NT NT NT I`Q s T-20•• 7121198 11 0 280 540 <0 0050 <0 0050 <0 0050 <0 0050 NT NT ray • Soluble Concentration(ug1L)# <50 <100 NT NT NT NT NT NT T 21 • 7121198 95 <1 0 <10 <0 0050 <0 0050 <0 0050 <0 0050 NT NT T 22•• 7121198 90 12 49 <0 0050 <0 0050 <0 0050 <0 0050 NT NT T-23' 7121198 11 5 <1 0 <10 <0 0050 <0 0050 <0 0050 <0 0050 NT NT Stockpile Samples SP_1 7!6198 NA 140 1000 <0 0050 <0 0050 <0 0050 <0 0050 NT NT Sp 2 716198 NA 540 2000 <0 0050 <0 0050 <0 0050 <0 0050 NT NT SP-3 716198 NA <1 0 <50 <0 0050 <0 0050 <0 0050 <0 0050 NT NT SP-4 716!98 NA 58 160 <0 0050 <0 0050 <0 0050 <0 0050 NT NT — 5P SA 5B 5C 5D (composite)## 7116198 NA 1700 3000 c0 0050 <0 0050 <0 0050 00075 NT NT 05 e.05 #=Silica Gel Cleanup TPHd=Total petroleum hydrocarbons as diesel 1=Note on laboratory report indicates that hydrocarbon does not ##=Sample mislabled as T-5A,59 5C 5D on chain of custody TPHmo=Total petroleum hydrocarbons as motor oil match the pattern of our diesel standard ug1L=Micrograms per liter 8=Benzene Z=Only detected analytes are listed mg/kg=milligrams per kilogram T=Toluene **=UST removal sample MTBE=Methyl t-butyl ether E=Ethylbenzene f• =Confirmation sample <( )=Below laboratory reporting limit X=Xylenes total =Initial sampling round-assessment sac21 g lcaddMWes141017141017001 As