Laserfiche WebLink
hq KLEItiFELDER <br /> r <br /> => The retention basin was reportedly installed approximately a year ago (likely <br /> soon after Sierra's report was issued). <br /> => The smaller depression (basin?) was reportedly excavated two or three years <br /> ago. However,please note that that depression was not noted in Sierra's report. <br /> The drums which were located to the southwest of the garage, were believed to <br /> contain petroleum products and were hauled offsite to an unknown location. <br /> Mr. McMillan mentioned a "farmer's dump" that at one time existed <br /> approximately 100 yards north of a pole mounted transformer and near an area <br /> of small soil piles. Mr. McMillan indicated that the dump was near the southern <br /> site boundary. He further stated that miscellaneous farm material which had <br /> been dumped and was later excavated and hauled off to an unknown location. <br /> The dump was approximately 100 feet by 40 feet in area and was excavated to <br /> an unknown depth. <br /> 4.2.3 Sampling Activities <br /> Due to the approximately 3 foot thick layer of imported fill and the presence of the retention pond, <br /> hand auger sampling of the soil in the gravel pit area and the disced field was not practical. <br /> Therefore,the scope of work was modified in the field. <br /> As a part of the field assessment, a total of seven (7) soil borings were advanced, five (5) in the <br /> areas of the orchard (SBI-0.5 through SB5-0.5) and two (2) in the area of the omhard(B1-5 and <br /> B2-5). See Plate 2 for the approximate boring locations. -5+W""-6�.AwR-A(Iz k- ' <br /> The borings were advanced using a hand auger. Soil samples were collected within the orchard <br /> at depths of six inches to one foot below ground surface (bgs). Soil samples were obtained by <br /> slide hammering a 2-inch diameter by 6-inch long stainless steel tube into the soil. The stainless <br /> steel tube was then removed from the boring and sealed with Teflon® sheeting and plastic end <br /> caps. The hand auger and slide hammer sampler were decontaminated between samples with a <br /> Liquinox° / water wash and a distilled water rinse. These shallow borings were backfilled with <br /> the cuttings generated during sampling. Soil samples collected in the gravel pit area were hand <br /> augered to a depth of five feet below ground surface (bgs) and sampled using the slide hammer <br /> with the method previously outlined. The five foot borings were backfilled to two feet from the <br /> surface with cement, with the remainder being backfilled with the cuttings generated during <br /> sampling, in accordance with PHS/EHD guidelines. <br /> Kleinfelder collected a total of seven(7) soil samples for chemical analysis from the borings. <br /> The soil borings were closed in accordance with the protocol described in Attachment A. <br /> 20-4202-01.P02/2018R669 Page 7 of 14 <br /> _ <br /> 0 1998.Kleinfelder,Inc. October 28, 1998 <br />