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Sierra Chemical Co. . <br /> SOP 917 RO <br /> Waste Management Program <br /> Section 2: Spill Sources <br /> Physical Description (Chemical Flow Paths) <br /> Chemicals handled by Sierra Chemical Co. at its Stockton facility are transported to the <br /> facility via common carrier, company truck, railcar and or manufactured on the premises. <br /> Chlorine and sodium hydroxide are brought to the facility by rail and spotted on the <br /> Sierra Chemical Co. rail spur located to the east of the warehouse/production area for <br /> offloading. Hydrochloric acid is hauled to the site by tank truck for transfer to a storage <br /> tank located in the hydrochloric repackaging area. The balance of the chemicals are <br /> received by company truck or common carrier and stored in the warehouse. <br /> The receiving, storage, and manufacture of chemicals is all done in what is referred to as <br /> the "Production Area". The production area consists of the following components. <br /> • Chemical receiving/loading pad. Sodium Hydroxide& Sodium Hypochlorite. <br /> • Rail Spur receiving Chlorine& Sodium Hydroxide <br /> • Tank farm storagetanks 2ea Sodium Hydroxide, 3ea. Sodium <br /> Hypochlorite, 3ea Solution Recycle, Product Filters, Recycle Filters. <br /> • Chlorine packaging/storage Area Chlorine <br /> • Powell Machine Area Sodium Hypochlorite& Sodium Hydroxide <br /> • Hydrochloric receiving/packaging Hydrochloric <br /> • Rotary Bottling Area Sodium Hypochlorite <br /> • Non-bulk Packaging Area Sodium Hydroxide& Sodium Hypochlorite. <br /> • Receiving/Loading Dock Any Chemicals Produced or Warehoused <br /> From storage, the chemicals are transferred, by way of a pump, to the appropriate <br /> manufacturing/packaging or container filling locations through PVC pipelines. From <br /> storage tanks to the point of packaging, all processes are either in a secondary <br /> containment or have a concrete surface below their path. <br /> As a result of conducting a process analysis,the following areas have been identified as <br /> potential sources of spills or leaks: <br /> Chemical Receiving/Loading Pad <br /> Located just south of the tank farm is a concrete pad to accommodate tank trucks making <br /> delivery or receiving chemicals described above. A spill could result from a leak in a <br /> process hose or at the fitting where the hose connects to Sierra Chemicals piping system <br /> for transferring product to or from storage. <br /> Railcar Spur <br /> Located adjacent to and east of the warehouse. A spill could result from a leak at the <br /> fitting where Sierra Chemicals piping connects to the railcar. <br /> 12 <br />