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Lake Manitou Area Association (LMAA)
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Drastic water fluctuations in Lake Manitou and Manitou River

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  • 30 Sep 2019 2:41 PM
    Reply # 7909902 on 7779084
    Anonymous member (Administrator)

    Submitted for Dave  Ham /  Assiginack  Township:

    Hi  There  :    The  Lake Manitou  water  level  problem  has  a  very  simple  solution.  My  permanent home  is   near  the  Manitoulin  Resort   ,  I  monitor  the water  level both winter  and  summer.  This  past  spring  the  level of  Manitou  was at  a  record  level because  of  the  record  snow.  Lifting  and  placing logs  in the  Sandfield  Dam  is  certainly  not  a  solution  to  the  problem..    After  speaking  to  various  people  with  Hydro  One ,  I  find  that  Lake  level control  has a solution  that  should  be  studied  .  Since  I  have  been  flying  around the  shores  on  Lake  Manitou  for  over  40  years it  is  quite  obvious  that  the  shortest  distance  to  the Lake  Huron   Georgian  Bay  water  levels  would  offer  an  excellent  opportunity to  generate  many  megawatts  of  power  while  at  the  same  time  keeping  Lake  Manitou at  reasonable levels.  These  systems  are  computer operated  and  work very well.  Just  for  your  information  the  distance  from  Assiginack  Bay on  Manitou  is  only  2 miles  with  an  estimated  fall  of  200ft.  By  increasing  the  size  of  the duct  this  system  could  keep  Manitou  plus  or  minus  a  few  inches.  When  the  lake  comes  into  balance  ,  the flip  of  a  switch  simply  shuts  off  the  flow.  Better  yet  a  automated  system  would  do  everything  automatically.  Having mentioned  this  to  Hydro  One  ,  they  seem  to  be  quire  interested in  a  project  to  generate  power  and  place  it  back  into  the  grid.  This  may  be  a  win  win  for  everyone .

    Last modified: 3 Oct 2019 8:51 PM | Anonymous member (Administrator)
  • 30 Sep 2019 2:44 PM
    Reply # 7909967 on 7779084
    Anonymous member (Administrator)

    Submitted for Don Payne, Franks Road area:

    We're not bothered by the changes in water levels because we have a floating dock and our shoreline is well fortified with rocks so that deeper water doesn't wash the shoreline away.

  • 1 Oct 2019 12:28 PM
    Reply # 7912842 on 7779084

    My unscientific observations support many of the comments.  In addition to the high water level early this year, larger climate changes, including much more intense precipitation events and more frequent East winds,  seem to be causing increased shoreline erosion on the West side of Green Bay.  Additionally, significant new road construction, and other land developments, have greatly increased the soil disturbances around the island.  I believe this is contributing to increased heavy run off and the increases of silt and cloudiness along our shoreline.  Changing the dam water release pattern to more accurately reflect the changing climate may sound like a good idea, but I suspect there is no easy or obvious way to do this.  By definition, climate change patterns are less predictable. There will likely be unexpected and unintended consequences  to changing seasonal lake level patterns and Manitou River flow patterns.  The targets outlined in the study should be adhered to until scientific study shows a better pattern.  Until then,  we should look at an affordable way to make more frequent incremental dam adjustments within the historic water level pattern. 

    Gwil Price-Rockville  

  • 3 Oct 2019 8:41 PM
    Reply # 7917053 on 7779084
    Anonymous member (Administrator)

    Submitted for Ken Stewart, Gibraltar Road Area

    We have no problem in Jumps Bay area

  • 3 Oct 2019 8:50 PM
    Reply # 7917058 on 7779084
    Anonymous member (Administrator)

    Submitted for: Dave Anderson, Oak Cliff Area

    We have owned property on Lake Manitou since 1988 in the Oak Cliff subdivision on Lot 11 Concession 11 Sandfield Ward of Central Manitoulin.  When the water levels are high (as they were this spring) and we get wave action from the east or north east there is significant shoreline erosion that creates a great deal of siltation along the shore.  This cloud of silt affects household water supplies as well as the inshore ecosystem covering the plants and gravel beds with a layer of silt.  I know that natural water level fluctuations are an integral part of a healthy ecosystem.  However, I believe it is time to review the policy governing the management of water levels on Lake Manitou.  I believe it is time that the primary driver of the policy needs to be overall ecosystem health and not focused to such a large degree on socio/economic issues.  For instance if Lake Manitou was managed at a lower level with adequate flow provided for the spring and fall spawning runs up the Manitou River there would be less shoreline erosion on Lake Manitou and enough water to support the spawning fish in the Manitou River.  I think that the OMNR needs to review the current policy and determine the benefits and or drawbacks of managing the lake at different levels and choose the option that will provide the best overall health for our ecosystem.

    Last modified: 3 Oct 2019 8:50 PM | Anonymous member (Administrator)
  • 9 Oct 2019 12:39 PM
    Reply # 7925019 on 7779084
    Anonymous member (Administrator)

    Submitted on behalf of Manitoulin Resort, Holiday Haven Road area:

    Thank you for including our business to comment on the fluctuations of Lake Manitou. As a staff at Manitoulin Resort, Myia asked me to reply to the concerns.

    There is a Ministry dock placed at the launch area but when the level of the water is so low, the dock is sitting on the ground with so little water it becomes useless. There are countless times lake/dock users have damaged their boats and their vehicles as they are backed in so deep into the water to attempt to put on/off their boats.

    Our resort docking area is in a desperate situation come August when the lake has drastically dropped to a point where some guests’ boats are sitting on the bottom of the lake while tied to their docks. People cannot launch their boats because of the incredibly low level. It becomes frustrating to them as well as us. It does impact our business as those who use this launch feel the need to come in to our store and vent at us regarding this issue which we have no control of. The town dock and use of the lake is a bonus point for the folks who bring their boats to fish and stay with the resort however it affects our resort reputation when we are placed as blame for the lake levels.

    As a cottage owner on Lake Manitou, I must pull my boat out of the water at the end of August every year because I can no longer get it off the marine railway because of the low levels. This is very frustrating!

    Thank you for your time,

    Sybil MacMillan for Manitoulin Resort

    Last modified: 9 Oct 2019 12:41 PM | Anonymous member (Administrator)
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