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PACIFIC _ <br /> ENVIRONMENTAL P,112: 26 <br /> GROUP, INC. <br /> March 1, 1996 <br /> Project 315-135.3A <br /> MEMORANDUM <br /> To: Gail Wiggett -Regional Water Quality Control Board, Central Valley Region <br /> From: Justin Hawkins -Pacific Environmental Group, Inc. <br /> Subject: February 2, 1996 Tank Overfill and Response <br /> Shell Fuel Terminal <br /> 3515 Navy Drive <br /> Stockton, California <br /> cc: John Gray- Shell (Sacramento) <br /> Carlton Jordan- Shell (Anaheim) <br /> Gordon Jones- Shell (Anaheim) <br /> Michael P. Kith - San Joaquin County Health Department <br /> Robert Lopez - San Joaquin County Office of Emergency Services <br /> Ms. Wiggett- following is a description of the February 2, 1996 incident at the Shell <br /> Stockton Fuel terminal and a summary of corrective actions performed. Please call if you <br /> have questions or comments. <br /> Description of Release <br /> On February 7, 1996, at 7AM, Shell personnel discovered that Tank 13 was over-flowing <br /> and that a large pool of water and trace product had accumulated in the area. (See <br /> Figures I and 2. It is estimated that a maximum of 4,000 gallons of water and product <br /> (less that i percent product)were lost from the tank. This estimate was based on the <br /> average groundwater pumping rate of 5 gallons per minute, the source of the overfill, and <br /> the maximum time that the overfill condition could have persisted (12 hours). <br />