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10/21/2003 15:32 FAX 510 614 8396 P RADISO MECHANICAL Z002 PA RADISC MECB ANICAL, INC GENERAL & PETROLEUM CONTRACTOR' and. ENVIRONMENTAL SERVICES P.©,BOX 1836 LICENSE NO.6774 2600 WILLIAMS STREET PHONE(510)614-8: SAN LEANDRO,CA 94577 FAX(510)614-8: 10/21/2003 San Joaquin County Environmental Health Department 304 E. Weber Ave., 3rd Floor Stockton, CA 95202 Re: PG&E Service Center, Underground Tank Repairs 4040 West Lane, Stockton 95204 Dear Michelle, Following is the scope of work originally anticipated for the work to make repairs to the existing under dispenser containment sumps at this facility. Our plan for completion of this project originally included the following steps, 1. The site has two (2) unleaded gasoline dispensers and one (1) diesel fuel dispenser with UDC sumps which need to be sealed and tested.We will remove all of the dispensers from their islands, seal all of the existing penetration fittings and perform a 24-hr, lake test on the existing UDC's. After the successful completion of this testing we will re-install the existing fuel dispensers. As you know we are not able to successfully seal the existing penetration fittings in the existing UDC's. Our plan now is to break out the concrete and remove and replace the three (3) existing UDC's with new Western Fiberglass under dispenser containment sumps_The work will include cutting the existing fuel and vapor piping and then extending new piping into the new UDC's. Soil samples will need to be taken from beneath each of the removed under dispenser containment sumps_ Inspections for the now work will include the sail sampling, the primary pipe test, the secondary pipe test, the lake test and finally after the re-mounting of the dispensers a functional test for the leak detection system. Please let me know if we can proceed with this work- s' eely, Robert 3 Corsun