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RE: Thrifty Oil Co. SS # 172; 7647 Pacific Ave, Stockton, CA 95207 Page 1 of 2 <br /> Willy Ng [EH] <br /> From: Chris Panaitescu [panaitescu@Thrifty0il.com] <br /> Sent: Wednesday, August 30, 2006 12:01 PM <br /> To: Willy Ng [EH] <br /> Cc: wayneppe@sbcglobal.net <br /> Subject: RE: Thrifty Oil Co. SS# 172-17647 Pacific Ave, Stockton, CA 95207 <br /> Willy, <br /> Following our today phone conversation, in response to your request, I have prepared and i am submitting to you the <br /> following: <br /> "Addendum to the-Workplan to Complete and Maintain Temporary Closure of the USTs, as required-by CCR Title <br /> 23, at TOC SS# 172, located at 7647 Pacific Ave, Stockton, CA." <br /> In addition to the activities included in the original Workplan dated August 23, 2006, the following activity will be <br /> performed during each quarterly inspection event(11116106; 02/15/07,, 05/17/07 and 08/16/07): <br /> -After removal of the fill caps, a photoionization detector(PID) calibrated by hexane will be used to measure <br /> the VOC concentrations in each UST. If the PID reading is 13,000'ppmv or more[equivalent to 1.3**% Lower <br /> Explosive Limit(LEL)], the UST(s) will be reinerted within maximum 10 days from the day of the reading, to <br /> levels that will preclude an explosion. The PID readings for each individual UST will be included in the inspection <br /> report prepared after each inspection event. If one ore more USTs will require to be reinerted, the SJCEHD will be <br /> notified at least 3 day in advance, and after completion of the job, a field report will be prepared and submitted to <br /> the SJCEHD. <br /> *Note:According to the Material Safety Data Sheet(MSDS), the flammable limits for gasoline are: LOWER: 1.3% (13,000 <br /> parts per million)and UPPER: 7.1% (71,000 parts per million). <br /> believe that the above addendum fulfills all your requirements for the temporary closure, and our application for the <br /> temporary closure of the USTs at the above referenced site will be approved as soon as possible. <br /> Thank you, <br /> Chris <br /> Chris Panaitescu,General Manager <br /> Thrifty Oil Co./Golden West Refining Co. <br /> 13116 Imperial Hwy. <br /> Santa Fe Springs, CA 90670 <br /> ph:(562)921-3581 x 390 <br /> fax:(562)921-7510 <br /> email: Panaitescu@ThriftyOit.com <br /> -----Original Message----- <br /> From: Chris Panaitescu <br /> Sent: Thursday, August 24, 2006 8:24 AM <br /> 8/30/2006 <br />