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California Water Service Company SUMMARY OF SAMPLE RESULTS 12/21/11 <br />1602 E. Lafayette St., Stockton, CA <br />RSL 8.0E+02 1.5E+06 5.6E+00 8.0E+02 2.0E+04 3.1E+05 <br />Cr III <br />VOCs (8260) include BTEX, CL HC, Oxygenates (MTBE, TBA, DIPE, ETBE, TAME), 1,2 DCA & EDB <br />RSL = Regional Screening Levels: Industrial <br />PCBs <br />VOCs <br />Cd <br />Cr III <br />Cr VI <br />Pb <br />Ni <br />Zn <br />TPHg <br />TPHd <br />Sample <br />ID Location <br />Date <br />Time <br />mg/k <br />mg/kg <br />mg/kg <br />mq/kg <br />mg/kg <br />mg/kg <br />mg/kg <br />mg/kg <br />mg/kg <br />mg/kg <br />001 <br />Pipe Trench (east) <br />12/13/11 <br />1:45 PM <br /><0.05 <br />ND <br /><0.25 <br />35 <br /><4.0 <br />5.3 <br />26 <br />50 <br /><1.0 <br />2 . <br />002 <br />Pipe Trench (middle) <br />12/13/11 <br />2:24 PM <br /><0.05 <br />ND <br /><0.25 <br />38 <br /><4.0 <br />6.0 <br />28 <br />60 <br /><1.0 <br />190 <br />003 <br />Pipe Trench (west) <br />12/13/11 <br />2:05 PM <br /><0.05 <br />ND <br /><0.25 <br />32 <br /><4.0 <br />6.4 <br />27 <br />51 <br /><1.0 <br /><1.0 <br />TP 1 <br />NE corner (Tank 2 - east) <br />12/13/11 <br />2:40 PM <br /><0.05 <br />ND <br /><0.25 <br />42 <br /><4.0 <br />6.7 <br />30 <br />61 <br /><1.0 <br />110 <br />TP 2 <br />SE corner (Tank 1 - east) <br />12/13/11 <br />2:45 PM <br /><0.05 <br />ND <br /><0.25 <br />43 <br /><4.0 <br />6.7 <br />28 <br />65 <br /><1.0 <br /><1.0 <br />TP 3 <br />NW corner (Tank 2 - west) <br />12/13/11 <br />2:50 PM <br /><0.05 <br />ND <br /><0.25 <br />57 <br /><4.0 <br />9.2 <br />48 <br />93 <br /><1.0 <br />76 <br />TP 4 <br />SW corner (Tank 1 west) <br />12/13/11 <br />3:00 PM <br /><0.05 <br />ND <br /><0.25 <br />46 <br /><4.0 <br />7.6 <br />36 <br />69 <br /><1.0 <br /><1.0 <br />LiL <br />PILE 1 <br />Center of main stockpile <br />12/13/11 <br />3:05 PM <br /><0.05 <br />ND <br /><0.25 <br />34 <br /><4.0 <br />9.5 <br />23 <br />49 <br /><1.0 <br />7.5 <br />PILE 2 <br />North end of main stockpile <br />12/13/11 <br />3:20 PM <br /><0.05 <br />ND <br /><0.25 <br />36 <br /><4.0 <br />24 <br />27 <br />66 <br /><1.0 <br />36 <br />PILE 3 <br />SW end of main stockpile <br />12/13/11 <br />3:30 PM <br /><0.50 <br />ND <br /><0.25 <br />49 <br /><4.0 <br />40 <br />34 <br />81 <br /><1.0 <br />46 <br />PILE 4 <br />SE end of main stockpile <br />12/13/11 <br />3:40 PM <br /><0.05 <br />ND <br /><0.25 <br />44 <br /><4.0 <br />36 <br />33 <br />110 <br /><1.0 <br />11 <br />PILE 5 <br />Trench stockpile <br />12/13/11 <br />3:55 PM <br /><0.05 <br />ND <br /><0.25 <br />43 <br /><4.0 <br />44 <br />29 <br />70 <br /><1.0 <br />1.9 <br />4E <br />South trench (east) <br />12/15/11 <br />10:45 AM <br /><1.0 <br />ND <br /><1.5 <br />35 <br /><4.0 <br />7.8 <br />24 <br />49 <br />ND <br />390 <br />5W <br />South trench (west) <br />12/15/11 <br />11:00 AM <br /><1.0 <br />ND <br /><1.5 <br />33 <br /><4.0 <br />6.1 <br />30 <br />46 <br />ND <br />630 <br />6E <br />North trench 4" line (east) <br />12/15/11 <br />11:25 AM <br /><0.05 <br />ND <br /><1.5 <br />42 <br /><4.0 <br />6.6 <br />29 <br />55 <br />ND <br /><1.0 <br />7M <br />North trench 4" line (middle) <br />12/15/11 <br />11:35 AM <br /><0.05 <br />ND <br /><1.5 <br />36 <br /><4.0 <br />6.0 <br />25 <br />45 <br />ND <br /><1.0 <br />8W <br />North trench 4" line (west) <br />12/15/11 <br />11:45 AM <br /><0.05 <br />ND <br /><1.5 <br />37 <br /><4.0 <br />5.4 <br />24 <br />48 <br />ND <br /><1.0 <br />ND <br />19 <br />9 -PH <br />Pot -hole sample (east) <br />12/19/11 <br />10:38 AM <br /><0.25 <br />ND <br /><1.5 <br />60 <br /><4.0 <br />6.5 <br />41 <br />86 <br />10 -PH <br />Pot -hole sample (middle) <br />12/19/11 <br />11:00 AM <br /><0.25 <br />ND <br /><1.5 <br />57 <br /><4.0 <br />7.1 <br />37 <br />81 <br />ND <br />120 <br />11 -PH <br />Pot -hole sample (at 90 turn) <br />12/19/11 <br />11:20 AM <br /><0.50 <br />ND <br /><1.5 <br />53 <br /><4.0 <br />45 <br />37 <br />190 <br />ND <br />270 <br />12 -PH <br />Pot -hole sample (at bldg 2' below pipes <br />12/19/11 <br />11:30 AM <br /><0.50 <br />ND <br /><1.5 <br />56 <br /><4.0 <br />21 <br />38 <br />150 <br />ND <br />430 <br />13 -PH <br />Pot -hole sample (at bldg 4' below pipes <br />12/19/11 <br />12:05 PM <br /><0.25 <br />ND <br /><1.5 <br />57 <br /><4.0 <br />7.4 <br />37 <br />87 <br />ND <br />140 <br />RSL 8.0E+02 1.5E+06 5.6E+00 8.0E+02 2.0E+04 3.1E+05 <br />Cr III <br />VOCs (8260) include BTEX, CL HC, Oxygenates (MTBE, TBA, DIPE, ETBE, TAME), 1,2 DCA & EDB <br />RSL = Regional Screening Levels: Industrial <br />