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T <br /> TABLE 1 <br /> LABORATORY RESULTS OF GROUNDWATER SAMPLES <br /> UNIFIRST CORPORATION <br /> 844 EI DORADO AVENUE <br /> STOCKTON,CALIFORNIA <br /> Page 1 of 1 <br /> Sample ID Sample Depth Laborato Data <br /> TPHg TPHd MTBE Benzene Toluene Eth (benzene Total X leve Lead <br /> Feet b s mg/kg mg/kg mg/kg m mg/kg mg/kg mg/kg m <br /> Excavation Samples <br /> Ex-3-N-1 3.0 ND ND ND ND ND ND ND ND <br /> Ex-3-N-2 3.0 ND ND ND ND ND ND ND ND <br /> Ex-3-S-1 3.0 ND ND ND ND ND ND ND ND <br /> Ex-3-E-1 3.0 ND ND ND ND ND ND I ND ND <br /> Ex-3-W-1 3.0 0.26 ND ND ND ND ND I ND ND <br /> Ex-11-Bot-1 11.0 ND ND ND ND ND ND ND ND <br /> Ex-4.5-Bot-2 4.5 ND ND ND ND ND ND ND ND <br /> S5 5.0 0.46 ND ND ND ND ND ND ND <br /> S6 5.0 ND ND ND ND ND ND ND ND <br /> Confirmation Samples <br /> CS-13-1 13.0 ND ND ND ND ND ND ND ND <br /> CS-13-2 13.0 ND ND ND ND ND ND ND I ND <br /> Stockpile Samples <br /> SP-1 3.0 ND ND NDND ND ND ND ND <br /> SP-2 3.0 0.23 ND ND ND ND ND ND 170 <br /> SP-3' 3.0 ND ND ND ND ND ND ND ND <br /> SP-4 3.0 ND ND ND ND ND ND ND ND <br /> SP-5 3.0 0.61 ND ND ND ND ND ND ND <br /> Pipe Sample <br /> PS-1 1.0 0.49 1 ND ND ND NO ND 0.011 ND <br /> Explanation: <br /> mg/kg=milligrams per kilograms <br /> bgs= below ground surface <br /> TPHg=Total Petroleum Hydrocarbons as gasoline by EPA Method 8015 <br /> TPHd=Totla Petroleum Hydrocarbons as diesel by EPA Mehtod 8015 <br /> MTBE=Methyl-tert-butylether by EPA Method 8021 <br /> Benzene,Toluene,Ethylbenzene,and Total Xylene by EPA Method 8021 <br /> Total Lead by EPA Method 6010 <br /> all ND=all constituents reported at not detectable concentrations with various detection levels <br /> '=Sample was collected from the d stockpile,all other stockpile samples were collected from the stained stockpile <br />