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Date Sampled Sample ID Notes <br />Cadmium <br />(mg/L) <br />Total <br />Chromium <br />(mg/L) Copper (mg/L) <br />Lead <br />(mg/L) Nickel (mg/L) Zinc (mg/L) <br />TTO by 624 <br />(µg/L) <br />TTO by 625 <br />(µg/L) <br />1/13/2005 GW-INF <0.005 <0.005 <0.005 <0.005 <0.005 0.0107 ND ND <br />3/29/2005 EFF <0.01 <0.01 <0.01 <0.005 <0.02 0.1800 ND ND <br />3/15/2006 EFF <0.005 <0.005 <0.005 <0.005 0.0191 0.1050 ND ND <br />5/31/2007 GW-EFF <0.005 <0.005 <0.005 <0.005 <0.005 0.0491 ND ND <br />5/12/2008 GW-EFF <0.001 <0.005 <0.005 <0.005 <0.005 <0.010 ND ND <br />1/14/2009 GW-EFF <0.001 0.0023 0.0016 <0.001 0.00517 0.0143 ND ND <br />7/9/2009 GW-EFF <0.001 <0.001 <0.001 <0.001 0.00285 0.00907 ND ND <br />1/12/2010 GW-EFF <0.001 <0.001 <0.001 <0.001 0.00257 0.01040 ND ND <br />6/10/2010 GW-EFF <0.001 <0.001 <0.001 <0.001 0.00531 0.0830 ND ND <br />7/12/2010 GW-EFF <0.001 0.0013 0.0180 <0.001 0.00231 0.0181 -- -- <br />1/11/2011 GW-EFF <0.00100 <0.00100 <0.00100 <0.00100 0.00323 <0.005 ND ND <br />7/13/2011 GW-EFF <0.00100 <0.00100 0.00243 <0.00100 0.00365 0.0254 ND ND <br />1/19/2012 GW-EFF <0.00100 <0.00100 0.0123 0.00106 0.00324 0.118 ND ND <br />Discharge Limits: 2.0 5.0 6.0 2.0 5.0 7.0 <br />Definitions: <br />mg/L = Milligrams per liter <br />< = Value is less than laboratory reporting limit <br />ND = No analyte detected above laboratory reporting limits <br />TTO = Total toxic organics <br />-- = Not sampled/applicable <br />0.5 Benzene/ 4.57 Total <br />666 West Weber Avenue, Stockton, CA <br />Parcel 2A - L&M OU <br />Table 15 <br />Dual Phase Extraction System - Semi-Annual Metals and TTO Treated Groundwater Data <br />I:\Tidewater\TW Stockton (P2A)\Engineering\O&M\Tables\O&M Tables 2012\Parcel 2A OM Tables 1Q12.xlsx Page 1 of 1