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Sanitary plumbing collects discharge from the facility restrooms and cafeteria and is tied <br /> to the city sanitary sewer system via service connection that is separate from the DAF <br /> effluent <br /> Stonnwater discharge from the pWt roof and catch basins located near the receiving <br /> docks is routed into a storm sewer located in the street. Some parrs of the site, including <br /> the bulk chemical receiving area drain into a storm sewer located on the north side of the <br /> Property. <br /> A schematic of the sewer system layout at the Facility is provided in Attaehment I. <br /> Possibie Release See narios <br /> Chemicals stored at the facility are primarily used in the laundry processing and in the <br /> wastewater treatment. Smaller amounts ofchernicals are used in the boiler roam, <br /> A complete list of the chemical storage locations is provided in Atfacbmen12. <br /> Wash Floor Chemicals <br /> All large bulk storage tames containing chemicals used in the wash process are located <br /> inside of secondary containment area which can capture any tank leaks or overflows. <br /> There are also smaller 55-gal[on drums associated with the bulk storage tanks and those <br /> are located outside of the concrete containment area and stored near the wash alley. <br /> Chemical drums are always kept in or on secondary containment. <br /> Some of the possible release scenarios include: <br /> * A hose coupling failure or leak from the hose after the product transfer operation is <br /> complete <br /> * Bulk storage tank overflow inside the chemical storage area. <br /> • Container damage during offloading, internal transport or caused by a forklift <br /> impact <br /> * Chemical piping failure <br /> WSI representative or Cintas Partner must be present during all phases of a bulk chemical <br /> delivery. At no point should the transfer operation be unattended. Follow chemical <br /> delivery instructions provided by the WSI as well as Cintas Safety. <br /> There are no drains in the bulk storage area and the 48 inch high wall surrounding the <br /> storage area provides secondary containmm. Any spills that occur inside the <br /> containment area can be removed using a spill kit or, if the spill is large, pumped out for <br /> further disposal without affecting the environment. <br />