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�`a" Contact Water System UG-5-Removal Project — Stockton, CA Terminal 2 IFC 7/22/19 EXHIBIT `A' - -SCOPE OF WORK The work to be performed under these specifications shall include all work necessary for or incidental to constructing, installing, and testing all equipment and piping modifications required to replace-contact watertank, U&5 ; and-contact water transfer pump, P- 18A, with contact water sump, T-25, and (2) new contact water transfer pumps, P- 103 and P- 104, with associated new discharge piping. The new contact water sunip, ,pump, sensors, and controls shallbeinstalled_prior to. demolition of the old system. The existing contact water tank UG-5 will be abandoned in place. Contractor to schedule downtime with Shell prior to change over. Waste water piping must be properly isolated and drained before any construction takes place. Contractor shall coordinate with Owner' s representative to provide system isolation, =drain-the system, and recover-the product prior to equipment removal including vacuum truck service. The work shall include the following work and components including all associated equipment and materials not listed . In the quote, breakout costs for demolition/drain down as a separate line item . Include estimated construction duration. Mechanical Scope of Work ® Field walk the existing Rack Slop Tank pump and verify existing pump and .piping dimensions and take any additional measurements required for pipe spooling . • Before construction, shop spool as much of the piping as possible to minimize field welding and equipment downtime. ® Install contact water sump T-25 , contact water transfer_punips P-103 and P- 104 near the existing UG-5 tank as shown on drawings. • Remove P- 18A discharge piping up until tie-in point TP-01 and drain piping up to tie-in points TP-02 -and TP-03 as shown on drawings P=050 -and P=051 . • Install new discharge and drain piping spools per drawings P- 100 and P- 101 . • SC Field Technical Services shall install: the carbon emissions filter system, • I £ydrotest all new piping, • Remove the existing contact water transfer pump and motor P48A. • Abandon existing contact water tank UG-5 in place. o - Triple- clean-tank, o Have marine chemist verify the tank is clean. o Auer confirmation the tank is clean then fill-the tank with flowable Till slurry (low strength lean concrete) . Shell Pipeline Company LP Page 1 of 3 Exhibit "A " - scope of Work - Rev. A