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. 13 February 2006 <br /> Appendix A - Site Background <br /> Page 2 of 4 <br /> fertilizer preparation in containment areas and storage buildings,the western portion is covered with <br /> compacted gravel and asphalt and consists of a storage buildmg/office, truck scale and a former <br /> automotive shop <br /> SITE HISTORY AND ACTIVITIES <br /> The RFS facility stores, batches and delivers fertilizers in bulk and diluted forms, it has been <br /> operated by RFS for at least 45 years and the bulk plant is operated by 14 employees The primary <br /> activity at the RFS facility is the distribution of fertilizers, selected chemicals are transferred directly <br /> into assorted sizes of delivery tank trailers,which are then transported to farm locations for metered <br /> dispersion into an irrigation stream Following delivery, the tankers and trailers may be rinsed to <br /> remove fertilizer residue that may be incompatible with subsequent fertilizer loads,such as between <br /> nitrogen-based and calcium-based fertilizer(UN32 vs Can-17, CN-9, thioCal) The rinse water is <br /> recycled into fertilizer blends or evaporated in a two-stage polyvinyl, concrete lined pond <br /> Secondary to the bulk distribution is batch processing, whereby a stainless steel mixer(10-ton batch) <br /> mixes dry potash,water and liquid fertilizer additives to generate the liquid fertilizer blends that will <br /> be transported to farm locations Dry and liquid bulk fertilizer components are delivered to the site <br /> by contracted trucking firms, dry chemicals are stored in concrete-divided storage bins or a dry <br /> hopper,whereas liquid chemicals are stored in twelve large steel tanks under secondary containment <br /> All loading and mixing are continually supervised by RFS trained personnel, any spills are <br /> immediately cleaned up, swept-up, or recycled into the appropriate fertilizer blends, rinse water is <br /> containerized and recycled or allowed to desiccate within concrete holding ponds at the eastern edge <br /> of the RFS site <br /> Surface rain water from the fertilizer batch plant area does not leave the site, the water is collected <br /> and recycled into fertilizer blends or evaporated within the two-stage polyvinyl, concrete lined <br /> ponds In addition, no surface or mix water leaves the site, or is discharged to the site, rather, it is <br /> collected and recycled by RFS trained personnel <br /> Boxed and containerized herbicide and fertilizer chemicals are stored in the mam storage/office <br /> building in the western portion of the site Additionally, the RFS facility stores and delivers spray <br /> oil for seasonal treatment of orchards and vines <br /> The RFS facility utilized the Federally-mandated Security and Training Program, a Hazardous <br /> Communication Plan and Risk Management Plan(Hazardous materials management pian- HMMP), <br /> as required by the San Joaquin County Office of Emergency Services (OES) and Ripon Fire <br /> Department <br /> 0 <br /> Advanced GcoEnvironmental,Inc <br />