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0 <br />PACIFIC <br />ENVIRONMENTAL <br />GROUP, INC. <br />MEMORANDUM <br />• <br />March 1, 1996 <br />Project 315-135.3A <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 />SheII Fuel Terminal <br />3 515 Navy Drive <br />Stockton, California <br />cc: John Gray - Shell (Sacramento) <br />Carlton Jordan - Shell (Anaheim) <br />Gordon Jones - Shell (Anaheim) <br />Achaei 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 tail 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 1 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 />