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collected revealed the presence of low concentrations of TPH as gasoline (10 ppm) It is <br /> unlikely that any significant concentrations of petroleum hydrocaibons remain in the soil <br /> under the tank pit We believe that this soil does not pose a threat to public health <br /> Organic vapors were detected with the PID from the air extracted from MW-2 TPH as <br /> gasoline was detected in the sample collected at a concentration of 3,600 molar ppm Total <br /> volatile hydrocarbons (TVH) were detected in soil samples collected during the installation <br /> of MW-2 at concentrations of 50 51 ppm (30 feet) and 39 84 ppm (35 feet) Lower <br /> concentrations of TVH were also detected in samples collected at depths of 40, 50 and 60 <br /> feet Slight to moderate hydrocarbons odors were noted from 25 to 41 feet during drilling <br /> The screen interval for MW-2 is 54 feet to 79 feet Hydrocarbon odois were not observed <br /> in the screened interval during drilling However, vapors may have been drawn down from <br /> the overlying impacted soil We recommend a meeting with the PI IS/El ID to discuss any <br /> further soil investigation or remediation that might be required in the vicinity of MW-2 <br /> 6.0 LIMITATIONS <br /> Our professional services were peiforined using that degree of care and skill ordinarily <br /> exercised by environmental consultants piacticing in this of sinidai localities The findings <br /> were based upon analytical results provided by an independent laboiatoiy Lvaluations of <br /> the geologic/hydrogeologic conditions at the site for the purpose of this investigation are <br /> made from a limited number of available data points (i a monitoring wells) and subsurface <br /> conditions may vary away from these data points No other waiianty, expressed or implied, <br /> is made as to the professional recommendations contained in this report <br /> I <br /> �b B.—QM L KU&S 12 <br />