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Vertical and Horizontal Delineation of Plume History Monitoring Wells MW#1, MW#2, and MW#3 were installed in September of 1999 to a depth of sixty feet Soil samples from the soil bores were extracted at five foot intervals from a depth of ten feet to sixty feet (see site map for location attached) All three soil bores produced samples above detection levels for BTEX and TPHg and TPHd (see Soil Sample Recap Attached) Monitoring Wells MW#4S and MW#4D were installed on the east side of Wilson Way in September of 2000 Also,monitoring wells MW#5D,MW#6S and MW#6D,MW#7S and MW#7D were installed north and south of the pump islands in September of 2000 (see attached Site Map) Monitoring wells MW#8S and MW#$D were installed in a single bore hole inside the existing building, west of the pump islands on October 3,2000 Monitoring wells MW#9S and MW#9D were constructed in a single soil bore on August 14, 2002 A work plan for five CPT's and two monitoring wells was approved by you on December 12, 2002 A cost estimate for the work plan was prepared by this office and a preapproval request for funding by the UST Cleanup Fund was submitted Approval from the UST Fund was granted on February of 2003 INSTALLATION OF CPT'S AND SAMPLE ANALYSIS REPORT Procedure The installation of CPT's,by Gregg In Situ Inc , began on March 14 with the installation of CPT#1 All cone penetrations were made to a depth of 140'below the surface of the concrete slab Soil samples were extracted using a 1" push sampler and water samples were extracted using a standard hydro punch with a 4' screen with 112" baler Soil samples were contained in a 1" stainless steel sample tube that was capped with Teflon sheet and a plastic cap secured by duct tap Samples were placed on ice for storage and transport Water samples were placed directly from the baler to 40 ml Voeas that were sealed with plastic caps and placed on ice for transport All samples were transported under chain of custody to BSK Laboratories for analysis by EPA Methods 8260, 8015(M) and 8020 BSK subcontracted out a portion of the analysis to Castle Analytical Laboratory (see chain of custody attached) Findings from Sample Analysis CPT#1 that is located south of Monitoring well MW#7S&MW97D was analyzed as non-detect for all soil and water samples for all analytes Water samples from CPT#2,CPT#3,CPT#4,and CPT#5 all had varying concentrations of 1,2-DCA from a low of 14 ug/L to a high of 420 ug/L Concentrations of THPg in water samples ranged from a low of non-detect to a high of 42000 ug/L in CPT#5 at 61 feet of depth The only soil samples with the presence of1,2-DCA were extracted from CPT#5 in concentrations from 14 ug/Kg to 28 ug/Kg Findings from Cone Penetration Data The Cone Penetration data failed to define any consistent lithology across the site A sizable sand permeable strata exists between depths of 15 and 25 feet All other permeable strata are very weakly defined and lack continuity across the site A very poorly defined sandy silt strata was found between 80' to 85',and 105'to 115' feet of depth In general,visual classification of extracted soil samples confirmed 2