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File No. 20-3978-01.W 13 k" KLEINFELDER January 22, 1997 due to the dilution effect of the large quantities of waste water generated by the factory. In fact, the factory has been known to generate up to 3,000,000 gallons/day at times past. However, Atherton Kirk Development should be aware of the presence of the factory drains and waste water lines, and contact Kleinfelder if any indications of contamination (such as soil discoloration or unusual odors) are discovered in these areas during or after the demolition of the factory buildings and associated structures. The scope of work presented in this cost estimate/proposal includes and evaluation of soils in the vicinity of an underground beet flume, formerly used to transport beets from the unloading station into the factory (Plate 2). Soil sampling in the vicinity of the former drainage canal, from the point of factory condenser water discharge its exit from the property (Plate 3) is also included. Additionally, soil samples will be collected adjacent to the beet seed warehouse (ESA recommendation 2). Sampling adjacent to the beet seed warehouse has not been included in previous proposals. Finally, soil and groundwater samples would be obtained at the southern edge of the factory building. SCOPE OF WORK Drilling Permit and Work Plan Submittal Kleinfelder will collect soil samples from borings advanced using a truck mounted drill rig. The San Joaquin County Public Health Services Department Environmental Health Division (PHS/EHD) requires a workplan and boring permit application for exploratory soil borings drilled for site assessment purposes. The proposed exploratory borings will require boring permits, and a workplan will be submitted to the San Joaquin County PHS/EHD for review. Kleinfelder will also prepare a health and safety plan for use in the field. The health and safety plan will be included as part of the workplan. Drilling of Borings and Soil Sample Collection A total of 24 exploratory soil borings will be drilled in the vicinity of the underground beet flume, the drainage canal, the south end of the factory building foundation, and the beet seed warehouse (refer to Plates 2 through 4). The exploratory borings will be advanced using a truck-mounted drill rig equipped with 6-inch diameter hollow stem augers. Soil samples will be collected beginning at a depth of 5 feet and ten feet for logging purposes and potential chemical analysis. The borings will be drilled, logged, and sampled according to the protocol described in Attachment B. The soil samples collected will be Yield screened using an organic vapor detector as described in Attachment B, Section B-2.2. The borings will be advanced to a maximum depth of 10 feet. The borings at the south end of the factory building foundation would be advanced to 15 to 20 feet by hand auger. Based upon previous investigations at the Spreckels property, groundwater is anticipated to be at a depth of 20 to 27 feet below grade. 20-3978-01.W131207PE030 Page 2 of6 01997. Kleinfelder, Inc.