Waterdown Trunk Watermain Twinning Class Environmental Assessment and Conceptual Design

The City of Hamilton has initiated a Municipal Class Environmental Assessment (EA) to identify a water servicing strategy for the community of Waterdown, including considering an alternative of constructing a new trunk watermain to service Waterdown. The need for a new watermain from Pumping Station (PS) HD016 to Waterdown was identified in the City’s Drinking Water Quality Management System (DWQMS) Infrastructure Review to support growth and due to the criticality of the existing single trunk main that supplies water to Waterdown community, as described in the City's Water and Wasterwater Master Plan (2006).

The purpose of this Class EA study is to determine the preferred alternative and its design concept.

This study is being planned as a Schedule ‘B’ Class EA, satisfying Phases 1 and 2 of the Municipal Engineers Association (MEA) Class EA process.

Background

The community of Waterdown is serviced by the City’s lake-based municipal water system which includes supply from the Woodward Avenue Water Treatment Plant (WTP). Potable water is conveyed to Waterdown from Dundas via a 600 mm trunk watermain along York Road to the York Road and Valley Road Pumping Station (HD016). From there, the station discharges to a 600 mm trunk watermain along Valley Road and Highway 5, where it continues into the community of Waterdown.

The City’s Water and Wastewater Master Plan recommended a second watermain into Waterdown to support growth and to provide additional system security. The Master Plan identified the need to conduct a Schedule B Class Environmental Assessment (EA) to revise or confirm the solution and preliminary route, the subject of this Study.