Water Systems

CJMac have completed studies to assess water rates, water source development, water storage and distribution systems, as well as water treatment options. Studies have provided construction and operating cost projections for budgeting and funding.

CJMac have completed well field development, the design of water treatment plants, water storage facilities, and distribution systems for residential and industrial users. Clients include municipal units throughout Nova Scotia as well as internationally in Dominica W.I., and Tanzania.

The experienced staff can provide the full range of services required to complete municipal water supply and distribution systems as indicated by the extensive list of related projects.

Project: South River Industrial Park

Lower South River Industrial Park
Antigonish County – Nova Scotia

Over the past 25 years C.J. MacLellan has been providing engineering services to business owners for the development of sites within the Lower South River Industrial park.

This has included site grading, earthworks, site services, parking lot designs and access and complete building design packages.

Originally CJMac completed the overall site planning for the 25 lot industrial park subdivision including detailed design and implementation of the road network, extensive

earthworks and municipal services including sanitary and potable water services.

CJMac has recently completed a 175 metre road extension within the subdivision to make available three new lots for the Municipal run subdivision. The main entrance is paved with side roads currently in gravel finished conditions. Typical lots incorporate side and rear yard vegetative buffers with access from the road system. Buildings are of industrial use including a steel works facility, a boat building complex and a concrete plant. The subdivision is approximately 80% built out.

Project: Gasperaux Lake

Gasperaux Lake/St. Joseph’s Water supply and Distribution
Municipality of the County of Antigonish

C.J. MacLellan & Associates completed design, tender, award, contract administration and commissioning of the new water treatment facility and small diameter distribution line for the residents of Gasperaux Lake and St. Joseph’s area located approximately 15 kilometres south of Antigonish. The project required the commissioning of a 60 lpm well, the construction of a concrete 83 m³ clearwell/reservoir, a duplex reverse osmosis and softener treatment process and the installation of over 3300 metres of 100mm diameter watermain. The project considered two tenders, with two contractors working simultaneously in an effort to have the water supply delivered near the end of 2006.

The treatment building was constructed over a concrete tank that provided serpentine baffling for chlorinated water and contact time.

The building was of wood frame construction and included adequate space for treatment equipment and the potential to expand for additional raw water supply. The contact chamber and treatment process was situated at a topographic high point such that the service area could utilize pressure due to gravity for some homes.

The distribution main included over 3300 metres of 100mm diameter watermain as the supply was provided for domestic use only and not fire protection. In addition the well yield was limited to the 60 lpm capacity. The watermain was installed in the shoulder and ditch slopes utilizing conventional trench excavation and backfilling. There were a number of bored crossing under a newly paved road to accommodate service and pipe installations. The project commenced in August of 2006 and as was completed in October, with commissioning following the treatment plant start up. The treatment plant and distribution piping were in excess of $500,000 for design, construction and administration.

Project: Hillside Water Systems

Hillside Water Distribution and Sewage Collection Systems
Municipality of the County of Pictou

C.J. MacLellan & Associates Inc. were retained by the Municipality of the County of Pictou in the early 1990s to undertake the design, tendering and contract administration of water and sewer works to service this residential community on the boundaries of the Town of Trenton. The project included 2200 metres of 200mm diameter gravity sewer complete with 35 manholes and the installation of 270 metres of 100mm diameter sewage forcemain, one duplex lift station, service connections to 75 homes and connection to the Municipal sewer system. Water infrastructure included 2370 metres of 150mm diameter watermain complete with hydrants and flush valves, 75 residential services and connection to the Town of Trenton water supply system.

The project was completed for approximately $900,000 in 1991.

The Municipality has maintained the infrastructure and has not reported any deficiencies or major repairs.

Project: Water Treatment Plant

Antigonish Water Treatment Plant
Town of Antigonish, Nova Scotia

C.J. MacLellan with ABL Environmental Consultants Inc. provided engineering services to the design build team for the construction of the new water treatment facility for the Town of Antigonish.

CJMac was the prime consultant responsible for structural, civil, electrical and mechanical design. ABL provided the process design for the treatment plant. The design build program was undertaken with a very aggressive schedule to meet funding requirements. Through the design build process; the team was able to construct the facility with the budget constraints of the project. The plant was successfully commissioned in June 2006.

405mm diameter Ductile Iron piping was installed to connect the existing Town Transmission main to the plant for raw water delivery, and to return treated water to the line for transmission to the Town. This main was connected by a number of flow control valves and bypass structure for various operating conditions. Slopes and hard clay were encountered throughout.

A small diameter forcemain line was installed over a 700 metre in length so that effluent from tow backwash water lagoons could flow freely to a local tributary. This line extended from a duplex pump station where lagoon treated effluent was pumped across a head of 10.5 metres in addition to the uphill gradient before outletting to an energy dissipation pool. The line was installed in the winter of 2006 and commissioned in spring of 2007. The pumps have a capacity of 60usgpm and can operate on cycle demand or together under high discharge conditions.

The Design Build project was constructed for $6.1 million over a period of 8 months with commissioning following through the summer of 2006.

Project: Nova Scotia Transportation

Nova Scotia Transportation & Infrastructure Renewal
Village of Cheticamp, Nova Scotia

C.J. MacLellan with ABL Environmental Consultants Inc . provided engineering services for the design of plant upgrades, a new storage facility and improved water distribution to meet compliance and operational requirements.

CJMac was the prime consultant responsible for structural, civil, mechanical design and ABL provided the process design, and SCADA. The design included upgrades to three well house facilities, VFDs, monitoring equipment and complete PLC control. In addition a 220,000 gallon steel glass lined reservoir was erected as well as over 500 metres of raw and treated water transmission main to improve on water circulation for chlorine residual as well as to add increased pressure to residential homes.

CJMac also design a ne watermain to service 18 homes on a very constrained laneway within the village. The historical development provides for small Acadian homes built generally wherever owners pleased, which when viewed today is difficult to provide new infrastructure without causing significant disruption. The contractor and the engineering staff successfully installed the new services to eliminate an old non compliant line to these homes.

Project costs were $880,000 with commissioning in Setpember of 2008.

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.