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Table 6 <br /> Screening for Contaminants of Potential Concern <br /> NuStar Terminals Stockton Facility <br /> Stockton, California <br /> Well C01 ' TPHg TPHd Benzene Toluene Ethylbenzene Xylenes MTBE TBA DIPE TAME ETBE Ethanol Methanol <br /> Completion ESLs' 0 .21 0 . 21 0 .046 0 . 13 0.043 0 . 1 1 .8 18 NA NA NA NA NA <br /> Zone Low Threat Cleanup Level NA NA 1 . 0 NA NA NA 1 .0 NA NA NA NA NA NA <br /> ST/MW- 1 110 < 10 18 5 . 6 2. 8 9.8 250 -- -- -- <br /> ST/WC- 1A -- -- -- <br /> -- -- -- - - -- - - -- <br /> PS/P- 11 0.53 1 . 1 0.062 -- - - <br /> PS/P- 12 59 <6.0 0.081 1 . 8 3 .5 17 <br /> PS/P- 13 23 <6.0 0. 53 -- <br /> PS/P-21 -- <br /> -- -- -- - - - - -- - - -- <br /> PS/P-23 - <br /> PS/MW- 14 24 28 8 . 7 0.3 0.84 -- -- - - <br /> PS/MW-15 6.3 1 . 3 1 .0 • • . . <br /> A PS/MW-17 •- -- - <br /> PS/MW- 19 -- <br /> PSfWC-2SR 0. 23 0.7 - - • • - - <br /> PS/WC-3S am <br /> PS/WC-4S -- am <br /> - <br /> OW-7A •• - - <br /> OW-8A -• -- <br /> am am <br /> ACA-1A 1 .9 0.42 -- am - <br /> ACA-2A -• 0.26 •- . . <br /> ACA-3AB 8. 1 0.62 0.87 0.51 . . <br /> ACA-4AB - -- -- <br /> -- -- -- -- -- - - -- <br /> ST/WC-1B -- -- - <br /> - -- -- -- -- -- -- -- <br /> PS/WC-2MR -- 0.31 -- -- -- <br /> PS/WC-3M - -- -- <br /> PS/WC-4M -- -- -- -- <br /> am a <br /> OW-7B •- •- -- -- <br /> -- -- -- - - -- - - -- <br /> OW-8B •- 0. 26 •- -• -- -- - <br /> ACA- 1B -- -- -- <br /> -- -- -- -- -- -- -- - - <br /> ACA-2B 1 .9 1 . 1 -- -- - <br /> ST/WC- 1C -- -- -- -- -- <br /> - -- -- - - - - - - - - -- <br /> OW-7C •- - •• •- - <br /> OW8C -- 0.37 -- -- -- •- <br /> ACA-3C -- 0.58 -- •- -- -- - <br /> ACA-4C 1 .7 1 . 2 -- -- -- -- -- <br /> ACA-5C •- 0. 22 •• -- -- - <br /> OW-6D -- - -- <br /> -- - - -- -- -- -- -- -- -- <br /> OW-7D - -• - -- <br /> -- -- -- -- -- -- -- -- -- <br /> D <br /> ACA-31) -- -- -- -- -- -- -- <br /> ACA-5D -- -- -- -- <br /> am am am <br /> Notes: <br /> 1 . C01 = Consituent of Interest. <br /> 2. ESLs = Environmental Screening Limits (Water Board , 2007 ;updated March 9 , 2008) , <br /> 3 , Low-Threat Underground Storage Tank Case Closure Policy (Water Board , 2012) . <br /> 4 . NA = Not Available . <br /> 5 . -- = Consituent not detected above ESL or Low-Threat Cleanup Level . <br /> 6. Bold = Largest detected concentration above ESL in past year. <br /> 7. Shaded = Concentration exceeds Low-Threat Cleanup Level . <br /> Revised Cleanup Plan <br /> Stockton Facility <br /> 1014- 12 <br /> Page 1 o( 1 <br />