Project: Lower South River


Lower South River/St. Andrews
Municipality of the County of Antigonish

In 2002 C.J. MacLellan & Associates with W.G. Shaw & Associates Ltd. completed the Water Supply Investigation and Infrastructure upgrade pre-design study for the Lower South River and St. Andrews communities in the County of Antigonish.  The study determined that new wells within the South River well field would supplement existing demands as well as provide growth supply for 860 users.  Well No. 4 (44 igpm at a depth of  64 m) was placed into production in the fall of 2004 with upgrades to the existing Filter Ag treatment system to maintain potable water.

In 2006 the Lower South River and St. Andrews Water Supply upgrade was tendered by C.J. MacLellan & Associates. This project connected well No. 6 into production (57 igpm at 67m depth), the construction of a new dual train filter Ag treatment system within a new treatment facility (utilizes new plus 2004 filter train), an above ground 500,000 gallon water tower, SCADA, an inline duplex pressure booster station in St. Andrews and approximately 4950 metres of 200 mm diameter watermain some of which is bored under the South River.  This project cost was $2.1 million for the design and construction.


C.J. MacLellan & Associates provided design, contract administration and site inspection for the treatment plant, reservoir and watermain which was aligned in the Dunmore Road ditch slope or bottom. The road shoulders were narrow and eliminated any potential of installation at the edge of the shoulder.

Over 300metres of the project piping necessitated directional drilling across a very narrow section of road over an incised tributary and also under the South River.  The one lane truss bridge over the river did now permit the hanging of the main as the bridge vibrates excessively from vehicle traffic.  The directional drilling required HDPE piping and fusion connection for adaptation with the PVC DR 26 watermain.  The project was constructed in the fall and winter of 2006 with commissioning in early January of 2007.

C.J. MacLellan & Associates Inc. Member of the SNC Lavalin Group of Companies
Ph: (902) 863-1220 | Fax: (902) 863-3225 | Email: cjmac@snclavalin.com
Suite 2, 65 Beech Hill Rd, Antigonish, Nova Scotia Canada B2G 2P9

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