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A <br /> 6) All CPT data and analytical and geotechnical labor atot y repos is will <br /> be included as appendices <br /> 7) Fuither work, including the installation of additional wells based on <br /> the i esults of assessment, will be i ecommended in this i eport <br /> 3--5- SECTION V — ADDITIONAL RECOMMENDED WORK <br /> Besides the work requested in the September 18, 2000 letter, ASE also <br /> iecornmends the following <br /> 1 ) Although ASE has not received the analytical results yet, obvious <br /> contamination was present during the installation of recovery well <br /> RW-I ASE recommends that at least one and possibly two <br /> additional borings be drilled west of RW-1 along the northern <br /> portion of the property to a depth of approximately 19-feet to verify <br /> that the captute zone extends out past the ateas containing any <br /> significant contamination (Figure 5) One soil and one groundwater <br /> sample collected fiom each boitng should be analyzed for TPH-G, <br /> BTEX, seven oxygenates (including ethanol and methanol) and <br /> • HVOCs by EPA Method 8260, and TPH-D by modified EPA Method <br /> 8015 A Geoprobe could be utilized to drill these shallow borings <br /> 2) ASE recommends that a line of borings be placed on the not thein <br /> portion of the vacant property north of the site, directly across West <br /> Yosemite Avenue (Figure 5) ASE recommends a 30-foot spacing of <br /> these borings Analytical and hydrogeologre information collected <br /> from these borings will be of great value in the design of any future <br /> remediation systems Once again, a Geoprobe could be utilized to <br /> drill these shallow borings Groundwater samples should be <br /> collected from each of these borings, and they should be analyzed <br /> for TPH-G, BTEX, seven oxygenates (including ethanol and methanol) <br /> and HVOCs by EPA Method 8260 In addition, if TPH-D is detected in <br /> any of the groundwater samples collected from any otf-site well, <br /> then TPH-D by modified EPA Method 8015 should also be included in <br /> the analytical suite Soil samples should also be analyzed if there is <br /> any evidence of soil contamination based on OVM readings, odors <br /> or staining <br /> • <br /> Frank's One Stop Workplan --- September 2000 <br /> -II- <br />