Two major construction projects to improve the water delivery system for businesses and residents in the Upper Piedmont, Duluth Heights, airport and mall locations of Duluth will begin September 14th.  An elevated water storage tank will be built on Basswood Avenue at a cost of nearly 3 million dollars.  The second project will be nearly a million dollars worth of improvements to the Highland Pump Station.  The scheduled completion of the projects is November of next year.  The work may mean some minor water disruptions but those properties affected will be notified in advance.