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05/01/00 MON 10:38 FAX 209 8 2519 J R STMPLOT U002 <br /> /7 <br /> J,R.SIMPLOT COMPANY 16777 HOWLAND R'OkLr P. XA8 <br /> LATHROP.CALIFORNIA 95330 (209)858-2511 FAX(209)558-2519 <br /> MINERALS&CHRIMICAL GROUP <br /> Michael Kith, <br /> Thank you for meeting with me Saturday April 29,2000 to assess the plant area which involved a <br /> small sulfuric spill. At the close of this visit you asked me to provide you with plans for the <br /> affected area of dirt that could not be excavated due to potentially disturbance of various concrete <br /> footing for nearby pipe racks vessels and stack support cable anchor. <br /> We were asked to address the following three items in the plan: <br /> 1. How we intend to complete the work at the affected site: <br /> Our plan is to fill the excavated area with new clean fill dirt,compacting in layers using <br /> appropriate Engineering practices to minimize ground settling,a polyethylene vapor barrier <br /> will be installed over the area prior to pouring a 16 inch thick concrete slab. The concrete slab <br /> will be reinforced with rebar and will include a retaining curb around the area. Expansion <br /> joints where the now concrete slab meets existing concrete slabs shall be filled with acid <br /> resistant material and the effected area will be seal coated with an acid resistant material. <br /> 2, How will we handle the affected area in the future should this plant be shut down or <br /> dismantled-. <br /> The affected area will be excavated or treated using accepted practices in effect at that time. <br /> 3. Describe our plant process to show how we will use the dirt removed from the site back into <br /> our process: <br /> The excavated material is made up of sand type soil,which now contains some sulfuric acid <br /> which has lowered the Ph of the soil,the soil is at or above 2-OPh.At this plant site we <br /> produce sulfuric acid which is used in out Granulation plant to produce Mono-Ammonium <br /> Phosphate Fertilizers. We purchase sandy soil which is added to the granulation plant as a <br /> filler for product analysis control. <br /> The material is made up of two raw materials we use in our process. We believe the material <br /> is of an acceptable composition to be classified as a fertilizer and meets the intended use <br /> requirement and as such is acceptable to be handled into our granulation plant. <br /> Bill Batterton <br /> Production Superintendent <br />