Search
Latest news

 A special thanks to

MacEwen Petroleum

Alexandria Moulding

Desjardins Caisse Populaire de la Vallee

Scotiabank

Township of North Glengarry

_____________________

Please review the proposed association constitution that we wish to implement, following a vote, at the next Annual General meeting.

JOIN US ON FACEBOOK!
Blog Index
The journal that this archive was targeting has been deleted. Please update your configuration.
Navigation

Water Quality Starts at the Source (Loch Garry 2011)

Our Start:

  • 35 concerned citizens approached the Region Conservation Authority (RRCA) in the summer of 2011 to gain a better understanding of lake management issues
  • Formed in Fall 2011 to seek methods of controlling the EURASIAN MILFOIL in Loch Garry and the Loch Garry lake system
  • Target 200 plus members

Our Research Workshop October 19, 2011

  • Water Level Management - History & hydrology of Loch Garry (Roger Houde/Philip Barnes RRCA)
  • Eurasian milfoil and Invasive Species – prevention and control of invasive species (Matt Smith, Ontario Federation of Anglers and Hunters)
  • Loch Garry Fish Community – recent sampling and factors influencing fish kills (Anne Bendig, MNR)
  • Healthy Shorelines – Best management practices for shoreline landowners (Norm Genier, RRCA)
  • Charleston Lake example – Healthy lake planning (Bill Hallam, Charleston Lake Association)


Our Objective:
To improve the quality of the Loch Garry lake system including:

  • Improving the water quality resulting in:
    •  Return to normal and life-sustaining oxygen levels
    •  Decreased temperature stratification
    •  Improved odour and taste
    •  Reduced Disinfection By-Products (water treatment)
  • Natural recovery of fishing stock
  • Return to past levels of swimming, fishing and boating


Our Approach:

  • LGLA supports a broad-reaching solution to benefit the Loch Garry lake system including the residents of Alexandria
  • LGLA supports a long-term, effective and cost-efficient solution
  • LGLA desires to partner with the Township of North Glengarry to facilitate the solution


The Deterioration is not recent

  • Loch Garry is: Eutrophic, suffering serious oxygen depletion and rapidly congesting with Eurasian Milfoil. (Dany Boudrias Aquatic Ecologist 2006)**

 
Effects of Eutrophication on Water Users:

  • Complaints about taste and odour
  • Risk of exposure to potentially toxic organic compounds
  • Higher water treatment costs
  • Increased plumbing costs
  • Diminishes lake holding capacity caused by weed decay

 
Potential solutions are limited:
Mechanical harvesting and herbicides provide short-term control with high economic costs and negative impacts to non-target biota and ecosystems (Newman, R.M. 2004)*

  • Harvesting typically increases milfoil growth due to the cut pieces that remain in the water that re-root
  • Harvesting and water turbines can be more than $100K
  • The use of herbicides, especially in the case of Loch Garry, Middle Lake and Mill Pond could result in an important algae bloom. (Dany Boudrias Aquatic Ecologist 2006)**


Potential Biologic Control Agents:

  • The native milfoil weevil is the most extensively researched species and has been used to inoculate milfoil beds throughout the US and recently Ontario and Quebec (Newman, R.M. 2004)
  • Milfoil Solution Inc., a Canadian Subsidiary of EnviroScience Inc. has successfully introduced weevils to several lakes in the US and Ontario


Satisfied Customers:

  • Cedarville Bay, MI  |  15,500 Weevils 2007-2008
  • Puslinch Lake, ON  |  48,500 Weevils 2006-2008
  • Sawyer Lake, MI  |  81,000 Weevils 2003-2005
  • Lake Bonaparte, NY  |  214,600 Weevils 2002-2008
  • Bass Lake, MI  |  37,000 Weevils 2001-2003
  • Van Etten Lake, MI  |  130,000 Weevils 2000-2002
  • Lake St. Helen, MI  |  78,000 Weevils  1998-2002


Project Plan:

  • LGLA recommends the use of weevils to control and potentially eliminate milfoil
  • In accordance with the goal to improve overall water quality, weevils to be distributed in both Loch Garry (40,000) and Mill Pond (10,000)

Project Costs:

  • First year: $50,950.00 +HST
  • Four year range: $144,000-$162,040 +HST


Our Recommendation:

  • Township contracts Milfoil Solution Inc. to proceed in 2012 with 50,000 weevils.
  • LGLA will use best efforts to raise a minimum $40,000 over four years by grants, individual and corporate donations.
  • All money raised will be donated directly to a Township account to qualify for donor tax receipts.

 
Potential Donors:

  • LGLA members
  • Trillium
  • Scotiabank
  • RBC Clean Water Program
  • Muskie Canada
  • Ducks Unlimited
  • Ontario Federation of Anglers and Hunters
  • Individual and Corporate donation drive including residents of Alexandria

Benefits for Town of Alexandria:

  • Better water quality
  • Potential reduction in water treatment costs
  • Increase in property values 
  • Increase in tourism
  • Return of aquatic activities 


Benefits for Township: 

Shoreline residents:

  • Return of aquatic activities
  • Increase in property value at resale

Wildlife:

  • Survival and reproduction of sensitive fish species
  • Increase in wildlife habitats that milfoil has destroyed
  • Increase in natural vegetation

Township must act quickly to protect:

  • The source of potable water for the Town of Alexandria
  • The only in-land lake system in Ontario east of Ottawa
  • Land values in Alexandria and the Township
  • Their most important asset

 

References

  • *(Newman, R.M. 2004). Invited review: Biological control of Eurasian water milfoil by aquatic insects):
  • **Study of Loch Garry Dany Boudrias, Aquatic Ecologist.2006
  • Milfoil Ecology, Control and Implications for Drinking Water Supplies, Wagner, Mitchell, Berg & Gendron, 2008
  • Significance of eutrophication in water supply reservoirs, William W. Walker Jr., 1983 American water works Journal