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' 20 September 2000 <br /> AGE-NC Project No 97-0333 <br /> Page 11 of 11 <br /> ' ground water monitoring event is tentatively scheduled for October 2000 <br /> • Additional vertical soil and ground water assessment is warranted at the site AGE proposes <br /> to drill five cone penetrometer testing (CPT) soil borings to characterize the vertical extent <br /> ' of hydrocarbon-impacted ground water at the site One CPT soil boring should be located <br /> near the former UST pit, two CPT soil borings should be located along Jessie Street and two <br /> ' CPT soil borings should be located along Yosemite Avenue Proposed CPT soil boring <br /> locations are depicted in Figure 2 <br /> • Installation of deep-screened ground water monitoring wells based on the findings of the <br /> proposed CPT soil borings, the screen intervals for the deep-screened monitoring wells will <br /> be placed to define and monitor the vertical extent of the ground water plume <br /> ' Interim remediation efforts in the area of the highest ground water MTBE contamination to <br /> inhibit migration of MTBE-impacted ground water off-site, to decrease the MTBE plume, <br /> to provide some degree of immediate relief and protection for the municipal drinking water <br /> ' wells located during the sensitive receptor survey, and to protect the beneficial use ground <br /> water supply <br /> 60 LIMITATIONS <br /> ' Our professional services were performed using that degree of care and skill ordinanly exercised by <br /> environmental consultants practicing in this or similar localities The findings were based mainly <br /> upon analytical results provided by an independent laboratory Evaluations of the geologic/hydro- <br /> geologic conditions at the site for the purpose of this investigation are made from a limited number <br /> of available data points (soil and ground water samples), and subsurface conditions may vary away <br /> ' from these data points No other warranty, expressed or implied, is made as to the professional <br /> recommendations contained in this report <br /> 9dia�rad( toFa� nunaiicizl: Iqd <br /> 1 <br />