Construction of a New Wastewater Lift Station - Centerport South Regional Water

D4.          SCOPE OF WORK

D4.1        The Work to be done under the Contract shall consist of the construction of a new dry well/wet well type wastewater pumping station complete with a backup generator and other site amenities. The complete Scope of Work is described in the Drawings and Specifications.

D4.2        The major components of the Work are as follows:
(a)   Shaft construction to accommodate the Work associated with this project.
(b)   Connection of a new 1200 mm PVC sewer to a sewer installed by the interceptor construction team (Contract 3) at the property line of the lift station site.
(c)    A new 3.65 m diameter precast concrete wet well to receive the wastewater from the sewer.
(d)   A new 3.65 m diameter Fibreglass Reinforced Plastic (FRP) dry well complete with pumps, valves, access platforms, sump, sump pump, motors and other appurtenances to pump the flow from the wet well to the valve chamber.
(e)   A cast in place concrete valve chamber complete with valving and other appurtenance to allow for flow routing to a 450 mm force main.
(f)    Approximately 60 m of 450 mm force main that is to connect to a force main system to be installed by the force main construction team (Contract 2A).
(g)   A 8.3 m X 8.3 m superstructure above the dry well to house electrical and mechanical equipment.
(h)   A propane fuelled backup generator, vaporizer and propane tank to provide backup power to the lift station and superstructure.
(i)     Raising of the existing site between 1.5 to 2 m using imported fill and installation of 
gabion walls on the east and west sides of the project site.
(j)     Providing a gravel driving surface for the site.
(k)    A water cistern to provide wash down/site usage water to the superstructure.
(l)     All electrical and mechanical works needed for a fully functional dry well/wet well lift station.
(m)  Land drainage sewer and catch basins to provide site drainage.

D4.3        The following shall apply to the Services:
(a)   City of Winnipeg Green Building Policy: New City-Owned Buildings and major additions; http://clkapps.winnipeg.ca/DMIS/DocExt/ViewDoc.asp?DocumentTypeId=2&DocId=5989
(b)   Universal Design Policyhttp://clkapps.winnipeg.ca/DMIS/DocExt/ViewDoc.asp?DocumentTypeId=2&DocId=3604