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FMS <br />Analyte Concentration <br />TPHG <br />8,500 <br />TPHD <br />ND <br />Benzene <br />24,000 <br />Toluene <br />380 <br />Ethylbenzene <br />2,300 <br />Xylenes <br />3,720 <br />Lead <br />ND <br />Oxygenates <br />ND <br />VEHI�LE <br />0 L <br />NSPEQTION <br />TPHG 2,400 <br />RA K <br />��F1 <br />N <br />0 125 <br />Scale in Feet <br />OWS INLET <br />L� z��� <br />'FORMER GAS4_p�USl \ \ <br />/ <br />1 \ <br />FORMERDIESEL <br />B32 �u s T <br />Analyte Concentration <br />TPHG 74,000 <br />\\ 1 <br />TPHD 1,400 <br />Benzene 3,900 <br />CONCRETE <br />Toluene 6,000 <br />WASH PAD TO <br />Ethylbenzene 920 <br />Xylenes 4 ,900 <br />HOLDING TANK <br />NS <br />Lead NS <br />I <br />Oxvaenates ND <br />OWS INLET <br />L� z��� <br />'FORMER GAS4_p�USl \ \ <br />/ <br />1 \ <br />FORMERDIESEL <br />B32 �u s T <br />I NATL GUARD\ 20010502 \ 010502_STOCKTON-GW.DGN VRL I <br />Figure 3-5. Groundwater Sample Analytical Concentrations <br />and Isopleths (Versar) <br />Analyte Concentration <br />\\ 1 <br />` \ • <br />n 630 I y A/ <br />TPHG 2,400 <br />\� <br />��F1 <br />TPHD ND <br />Benzene 53 <br />_ <br />Toluene 380 <br />\ <br />• B31���'� <br />Ethylbenzene 330 <br />\ <br />��--�' <br />Xylenes 1,550 <br />♦ ��'��� / <br />Lead ND <br />Oxygenates ND <br />CONCENTRATIONS BOLDED EXCEED <br />ITS RESPECTIVE WATER QUALITY <br />GOAL (TASTE AND ODOR THRESHOLD <br />LEGEND: <br />OR PRIMARY MCL) <br />O <br />PREVIOUS BOREHOLE LOCATION <br />MCL MAXIMUM CONTAMINANT LEVEL <br />TPHG CONCENTRATION ISOPLETH (5 UG/L) <br />ND NON -DETECT <br />TPHD CONCENTRATION ISOPLETH (100 UG/L) <br />NS NOT SAMPLED <br />BENZENE CONCENTRATION ISOPLETH (1 UG/L) <br />EMS FIELD MAINTENANCE SHOP <br />TOLUENE CONCENTRATION ISOPLETH (150 UG/L) <br />OWS OIL/WATER SEPARATOR <br />ETHYLBENZENE CONCENTRATION ISOPLETH (300 <br />UG/L) TPHD TOTAL PETROLEUM HYDROCARBONS <br />AS DIESEL <br />XYLENE CONCENTRATION ISOPLETH (1,750 UG/L) <br />0TPHG <br />TOTAL PETROLEUM HYDROCARBONS <br />AS GASOLINE <br />UNPAVED AREA <br />■ <br />STORM DRAIN INLET <br />UG/L MICROGRAMS PER LITER <br />SANITARY SEWER LINE <br />UST UNDERGROUND STORAGE TANK <br />Z <br />HAZARDOUS MATERIAL <br />NOTE <br />STORAGE SHED <br />CONCENTRATIONS SHOWN ARE UG/L. <br />I NATL GUARD\ 20010502 \ 010502_STOCKTON-GW.DGN VRL I <br />Figure 3-5. Groundwater Sample Analytical Concentrations <br />and Isopleths (Versar) <br />