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City of Everett 01 11 00 - 13 <br />Port Gardner Storage Facility – Facility Construction Package WO# UP-3525 <br /> <br />01 11 00 - 13 SUMMARY OF WORK <br />Category 2: Sensitive information <br />Category 2: For official use only / disclosure permissible by law. <br />12. Area 60 Effluent Pump Station <br />a. Work within Area 60 involves construction of a greenfield pump station, <br />Effluent Pump Station (EPS), located along the western boundary of <br />the site. The EPS will be an approximately 775 square foot pile <br />supported structure housing three submersible wastewater pumps. <br />This pump station will convey treated stormwater and flow from Area <br />55 Secondary Storage to an offsite location, Deepwater Outfall 100. <br />EPS construction activities include structural, architectural, process <br />mechanical, electrical, instrumentation and controls, and site civil work. <br />1) Structural <br />a) The EPS structural work encompasses all elements of work <br />associated with construction of an approximately 25-foot deep, <br />pile supported wet well. The wet well design includes center <br />channel and pump mounting bases integrated into the channel <br />fillets. The southern wall of the wet well includes a penetration <br />for a 36-inch diameter pipeline that will convey flows into the lift <br />station. <br />b) In addition to the wet well, the EPS includes an above grade <br />valve platform adjacent to the wet well. This area will house <br />various process mechanical equipment including piping and <br />valves. <br />c) The pump station wet well and valve vault are to be constructed <br />with a topping slab that will sit approximately 3.2-feet above <br />grade. This slab will be constructed with penetrations for access <br />hatches. <br />d) The EPS wet well and valve area will be covered by an open air <br />building constructed of tubular steel material. This structure will <br />support an electrically powered bridge crane for removal and <br />installation of pumps within the wet well. The crane system will <br />extend beyond the immediate envelope of the building for <br />loading/unloading of service vehicles. <br />e) In addition to the items listed above, structural design includes <br />stairways for accessing the pump station structure and <br />guardrails. <br />2) Architectural <br />a) Architectural components of the EPS include standing seam <br />metal roofing on the open air canopy structure. The canopy <br />structure will be open air with exception of the western wall, <br />which will be enclosed with structurally supported metal <br />paneling. Roofing for the structure includes sheet metal gutters <br />and downspouts.