The water supply for the Town of Gander including Gander International Airport is Gander Lake. Gander Lake is approximately 56km long and 5km wide (35×2 miles), and is one of the deepest lakes in North America, estimated at 305 metres (1000ft) deep.
The Water Services Division of the Municipal Works Department is responsible for the operation and maintenance of two pump houses, a water treatment plant and the entire water distribution system.
The Town of Gander operates and maintains a pump house located halfway along the north shore of Gander Lake. The intake is a 122cm (48 inch) pipe which draws water from approximately 5m (16ft) below low water level. Water is pumped from the lake along a 2,743m (9,000ft) aqueduct through a water treatment plant to a 6.26 million litre (1.65 million US gallon) reservoir where it is stored for approximately 18 hours before it is pumped again into the distribution system.
The water in the Lake is soft, acidic, low in most metals, and low in alkalinity. It is high in color and has high organic and inorganic chlorine demand. In 2008 the Town of Gander constructed a $9 million Water Treatment Plant to provide high quality water to its residents. Water treatment consists of ozone as a primary disinfectant with soda ash added to adjust the ph level and a low dose of chlorine to maintain residual at the limits of our system. Daily tests are taken to ensure potable water quality.
The Wastewater Division of the Municipal Works Department operates and maintains two Sewage Treatment Plants, fourteen Sewage Lift Stations and approximately 56 kilometres of gravity sewers and force mains, including associated manholes.
The northeast section of town is served a sewage treatment plant located on Magee Road and the remainder of the town is serviced by the Beaverwood sewage treatment plant located on the east end of Memorial Drive.
Gander’s new multi-million dollar wastewater treatment facility will be one of the largest infrastructure projects the town has ever taken on. Panned to be located north of the Town of Gander and south of Whitman’s Pond, the new treatment plant is proposed as a replacement for the existing wastewater treatment facilities.
The project will greatly increase the performance and capacity of Gander’s wastewater treatment system. The new plant and over 2.5 km of new piping will transport wastewater from the Magee sewage treatment plant will ensure that the municipality can meet federal Wastewater Systems Effluent Regulations as the town continues to grow.
The new treatment plant will include preliminary, primary, and secondary levels of treatment, as well as effluent disinfection to mitigate the effect of the effluent discharge on the receiving water.