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RtINICK-�-IfRNfI <br />WORKPLAN FOR THE REPAIR OF <br />TWO LEAKING UNDERGROUND FUEL LINES <br />At approximately 1:30 P.M on March 10, 1993 Helmick and Lerner Engineering was contacted <br />by Graphic Contractors regarding a damaged product line at Arco facility # 548 Located at <br />1612 West Hammer Lane Stockton, California. Upon arriving at the site we were informed <br />that two product lines were damaged by a drilling rig during drilling activities on March 9th. <br />Further investigation confirmed that extensive damage had been done to the regular and super <br />unleaded product lines. <br />The responsible environmental consultant onsite was Resna Industries from Sacramento. The <br />senior geologist was John Babbitt. Mr. Babbitt informed us that they were going to collect soil <br />samples from the trench directly beneath the ruptured lines. At that point we began to remove <br />the damaged portion of piping. Approximately 3 feet of piping was removed from each line. <br />Resna then collected 1 soil sample using a slide hammer with a brass liner tube approximately <br />1.5 feet below the bottom of the trench. <br />We then replaced the removed portion of piping with 2 couplings and approximately 2 feet of <br />piping. All piping and fittings were manufactured by Ameron which was consistent with the <br />existing piping. The piping that was removed was discarded as it was unusable. <br />All of the glued fittings were heat cured using an electric heat blanket to insure complete <br />setting of the fiberglass resin. <br />On March 11, 1993 a precision line test was preformed by Lye Nimmo, Afford A Test, and <br />passed successfully. A copy of the test results will be submitted to San Joaquin County <br />Environmental Health Division within 30 days. <br />If you have any further questions regarding this description of work preformed please contact <br />us. <br />Sincerely, <br />HELNIICK & LERNER INC. <br />J. Brian Gains <br />Operations Manager <br />Construction and Hazardous Waste <br />