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Water, Water, Everywhere?

10/28/2014

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Canada is the second most water-rich of the OECD countries with 85,516 cubic metres of renewable freshwater per capita. However, 60% of this water is unavailable to 85% of the population as it flows north away from the city centres. With this in mind, Canada still ranks fourth. It is also the second highest water user at 1,441 cubic metres per capita. Even with high water usage, only 2% of the renewable freshwater resources are withdrawn from the source annually. Ninety-six percent of the water comes from surface sources such as lakes and rivers and the remaining 4% is taken from groundwater sources. From 1985 to 1995 the amount of water withdrawn from these sources annually dropped 0.4% and in 1996 it was estimated that 20% of the water went to domestic and household use, 69% to industrial and commercial uses, and 12% to irrigation and agriculture.

The breakdown of land and water surface area is shown below. Canada and Ontario have 8.9 and 14.7% respectively of their total area in freshwater, which is made up of lakes, ponds, rivers, streams, wetlands, swamps, and sloughs (CWF [1]). The Lake Simcoe and Nottawasaga Valley Watersheds have 33 (lake and wetlands only) and 23% respectively of their land area under water (EC).

Canada has a large supply of freshwater but is also one of the highest users of water. Even though overall the country has vast amounts, the distribution is uneven and access is limited in some areas. Challenges moving forward for the country, the province, and these watersheds include an increasing demand as the population grows and combating pollution while protecting the freshwater sources.

Unless otherwise noted, data is sourced from CWF [2]
Picture
[Data adapted from CWF [1] and EC]
References
  • Canada West Foundation & Vander Ploeg, C. G. [1] (2011, September). Canada’s Waterscape in Context. In Canadian Water Policy Backgrounders. Retrieved October 6, 2014, from http://cwf.ca/pdf-docs/publications/Water_Backgrounder_2_Sept_2011.pdf
  • Canada West Foundation & Vander Ploeg, C. G. [2] (2011, September). Water, Water Use and Water Pricing Around the World. In Canadian Water Policy Backgrounders. Retrieved October 6, 2014, from http://cwf.ca/pdf-docs/publications/Water_Backgrounder_2_Sept_2011.pdf
  • Environment Canada. (2014, September 5). Lake Simcoe/South-eastern Georgian Bay Clean-Up Fund (LSGBCUF). In Environment Canada - Water - Lake Simcoe Clean-Up Fund. Retrieved September 15, 2014, from http://www.ec.gc.ca/eau-water/default.asp?lang=En&n=85C54DAE-1
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South-Eastern Georgian Bay Watershed

10/20/2014

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Part 4 of a 4-part series on watersheds

This watershed is divided into three parts, Lake Couchiching, Severn Sound, and Georgian Bay Coast. The first section is positioned at the southeastern tip of the area around the 34 square kilometre Lake Couchiching which is at the top of Lake Simcoe (EC). Severn Sound is comprised of a 130 square kilometre series of bays on south-eastern Georgian Bay (EC). The final part of this watershed is the section of coastline between Port Severn and where the French River enters Georgian Bay.

The townships of Severn, Tay, and Tiny, the Towns of Midland and Penetanguishene, and the City of Orillia in Simcoe County and areas along the coast in the Districts of Muskoka and Parry Sound are all represented in this watershed.

This watershed supports a large recreational and tourist industry. Severn Sound has a permanent population of 110,000 that swells seasonally to 300,000 (EC). The cottage industry is causing development along the coasts as it grows and this could become a concern as the integrity of the coastline is changed. Agriculture also has a presence; in Severn Sound there are about 900 farms on approximately 270 square kilometres (SSEA [1]).

Severn Sound was identified as an ‘Area of Concern’ by Environment Canada due to degraded water quality and environment health. Through phosphorus control, habitat restoration and enhancement, pollution prevention, planning, environment monitoring, and public education, it was removed from the list in 2003 (SSEA [2]).
Picture
South-Eastern Georgian Bay Watershed [Picture Source: EC]
References
  • Environment Canada. (2014, September 5). Lake Simcoe/South-eastern Georgian Bay Clean-Up Fund (LSGBCUF). In Environment Canada - Water - Lake Simcoe Clean-Up Fund. Retrieved September 15, 2014, from http://www.ec.gc.ca/eau-water/default.asp?lang=En&n=85C54DAE-1
  • Severn Sound Environmental Association. [1] (n.d.). Description of Severn Sound. In Severn Sound. Retrieved September 15, 2014, from http://www.severnsound.ca/SSEA_AU_SevSound.htm
  • Severn Sound Environmental Association. [2] (n.d.). Severn Sound Remedial Action Plan. In Severn Sound. Retrieved September 15, 2014, from http://www.severnsound.ca/SSEA_AU_SSRAP.htm
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Nottawasaga Valley Watershed

10/14/2014

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Part 3 of a 4-part series on watersheds

The Nottawasaga Valley Watershed is approximately 3,600 square kilometres of land and water (EC). The surface water can be broken down into three categories; there are 13 square kilometres of lakes, 585 square kilometres of stream systems, and 242 square kilometres of wetlands (EC). Georgian Bay forms part of the northern border and is also the final destination for the water which flows in at Collingwood, Wasaga Beach, and Severn Sound (NVCA). The area has been divided into 10 subwatersheds based on the different river, creek, and sound systems that drain the watershed.

The Townships of Adjala-Tosorontio, Clearview, Essa, Oro-Medonte, and Springwater, and the Towns of Bradford West Gwillimbury, Collingwood, Innisfil, New Tecumseth, and Wasaga Beach in Simcoe County, as well as the City of Barrie, the Towns of Mono and Shelburne, and Townships of Amaranth, Melancthon, and Mulmur in Dufferin County, and the Town of the Blue Mountains and Grey Highlands Municipality in Grey County and Town of Caledon in Peel Region are all represented either fully or partly in this watershed.

There are 26 square kilometres of coastal areas spaced along the 35 kilometres of Georgian Bay’s coastline (EC, NVCA). These areas are important to the tourism industry that is centred in Collingwood and Wasaga Beach. Agriculture covers a large portion of the land, but there are also areas of forest and wetlands (NVCA).

Picture
Nottawasaga Valley Watershed [Picture Source: EC]
   References
  • Environment Canada. (2014, September 5). Lake Simcoe/South-eastern Georgian Bay Clean-Up Fund (LSGBCUF). In Environment Canada - Water - Lake Simcoe Clean-Up Fund. Retrieved September 15, 2014, from http://www.ec.gc.ca/eau-water/default.asp?lang=En&n=85C54DAE-1

  • Nottawasaga Valley Conservation Authority. (2013). 2013 Nottawasaga Valley Watershed Health Check. In Watershed Report Cards. Retrieved September 29, 2014, from http://www.nvca.on.ca/Shared%20Documents/2013%20NVCA%20WHC.pdf


 
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Lake Simcoe Watershed

10/6/2014

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Part 2 of a 4-part series on watersheds

The Lake Simcoe Watershed covers 3,576 square kilometres of land and water including the 722 square kilometres of Lake Simcoe which is part of the Trent-Severn Waterway (EC, LSRCA). There are 4,225 kilometres of rivers, creeks, streams, and tributaries divided into 18 separate subwatersheds (LSCRA). There are 35 rivers in total that empty into the lake and wetlands cover 13% of the watershed (EC, LSRCA)

There are several regions and municipalities within this watershed. The Towns of Aurora, East Gwillimbury, Georgina, Newmarket, and Whitechurch-Stouffville and Township of King in York Region, the Towns of Bradford West Gwillimbury, Innisfil, New Tecumseth, Townships of Oro-Medonte and Ramara in Simcoe County, as well as the Cities of Barrie and Orillia, the Townships of Brock, Scugog, and Uxbridge in Durham Region, the City of Kawartha Lakes, and the Town of Caledon in Peel Region are all included in the watershed to some degree. Certain municipalities lie fully within the borders and others are only partly represented.

The area hosts a permanent population of above 400,000 (LSRCA). The landscape is changing as the population grows and the towns are developing to service their needs. Its location close to Toronto has caused the towns in the southern areas to become bedroom communities for the city. Presently, 8% of the watershed is urban land and 36% is agricultural land (LSRCA). All aspects of Ontario agriculture are represented within this watershed. The Holland Marsh, located in the southwest, is known as the salad bowl of Ontario. It was designated a Specialty Crop Area in 2005 and is protected from urban expansion and non-agricultural uses. Recreational activities, predominately fishing, and tourism centred around the lake contribute $200 million to the local economy each year (EC). This watershed has an evolving landscape and must contend with increasing development.
Picture
Lake Simcoe Watershed [Picture Source: EC]
References
  • Environment Canada. (2014, September 5). Lake Simcoe/South-eastern Georgian Bay Clean-Up Fund (LSGBCUF). In Environment Canada - Water - Lake Simcoe Clean-Up Fund. Retrieved September 15, 2014, from http://www.ec.gc.ca/eau-water/default.asp?lang=En&n=85C54DAE-1

  • Lake Simcoe Regional Conservation Authority. (n.d.). Our Watershed. In The Lake Simcoe Watershed. Retrieved September 22, 2014, from http://www.lsrca.on.ca/about/watershed.php

  • Planscape. (2009). Holland Marsh Agricultural Impact Study (p. 10). Ontario, Canada: Friends of the Greenbelt Foundation & Holland Marsh Growers’ Association.


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