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�>CRO <br /> Jeff Granberry i <br /> . September 26, 1995 ( 9447-8620) <br /> G American Construction began backfilling the former UST excavation on May 5, 1995 <br /> Because ground water in the 15-foot deep excavation came up to 11 fbg, 2-inch rock was <br /> used as backfill up to 11 fbg A filter fabric was placed on top of the rock to prevent the <br /> silty sand backfill material from filtering down through the rock As the silty sand <br /> backfill was deposited, it was compacted in two-foot lifts According to American <br /> Construction, compaction testing results were approximately 95 percent <br /> O Fugro personnel witnessed American Construction remove approximately 666 yd' of soil <br /> from the new UST basin on May 8 and 9, 1995 <br /> C Fugro personnel collected four soil samples from the soil pile generated from the new <br /> UST excavation on May 8, 1995 The samples were collected at locations specified by <br /> SJCPHS/EHD <br /> G American Construction installed two 15,000-gallon USTs in the new UST excavation on <br /> May 11, 1995 Ancillary piping was installed during the week beginning May 15, 1995 <br /> D Fugro personnel witnessed American Construction remove 360 yd' of soil from the former <br /> product line trenches on May 15 and 16, 1995 The excavation was expanded until PID <br /> readings did not indicate the presence of petroleum hydrocarbons or further excavation <br /> might compromise the integrity of the canopy footings <br /> G Fugro personnel collected compliance soil samples from the former product line trenches <br /> on May 17, 1995 The soil samples were collected at locations specified by a <br /> SJCPHS/EHD representative <br /> e Fugro personnel collected compliance soil samples from the former vent line trench on <br /> June 6, 1995 The soil samples were collected at locations specified by a SJCPHS/EHD <br /> representative <br /> G Fugro personnel supervised the installation of one, 6-inch diameter, 30-feet deep recovery <br /> well (RW-IA) on May 25, 1995, in the center of the former UST basin <br /> e On June 1, 1995, American Construction removed the vent lines servicing the former <br /> UST, overexcavating to a depth of approximately 3 fbg <br /> e Fugro personnel collected samples VLI-3, VL2-3, and VL3-3 from the vent line trench <br /> on June 6, 1995 The soil samples were collected under the direction of a SJCPHS/EHD <br /> representative <br /> 94478620 ARP -3 - <br />