Photo credit: Diana Reiman.
storm as required by SPCC regulations. The containment dike has a sump with a normally closed valve that is opened after a rainstorm and closed at the end of the day or when the dike is drained, whichever comes first. When this valve is opened, the dike drains through an Oil Water Separator (OWS) that discharges to the city sewer system. There is a four bay loading rack with
two offloading positions for the transports that will unload the trailers at 550 to 600 gallons per minute. All tanks are filled by dedicated offload pumps and the PTO on the transports could be used as a backup if there was a power outage. Each loading bay has a fuel oil loading arm and there is a loading arm for on-road (clear) diesel and off-road (dyed) diesel. During the early morning rush, four
fuel oil delivery trucks can be filling simul- taneously, and later, around 8 a.m., there could be two transports unloading—still leaving two bays for delivery trucks to load. There is also a transfer loading arm to move product from a transport to a deliv- ery truck. All loading arms are supplied by 25hp pumps that will fill the trucks at a flow rate of 500 to 600 gpm. Each loading bay is set up with a Scully
Ground Hog system that needs to be con- nected to the transports to unload or to the delivery trucks to load. If the Ground Hog cord is not connected to the trucks, then the pumps will not operate. Not only does this properly ground/bond the trucks, but it also adds the feature of shutting off the pump when the cord is disconnected. This helps prevent a pump being left running by a driver, which could cause severe dam- age to the pump. Because this location is being used for a
through-put operation for most of the oil companies in the Worcester area, there is
24 JUNE 2012 | FUEL OIL NEWS | www.fueloilnews.com
