Today's date: Thursday June 21, 2018
column width padding column width padding

The Wellington Advertiser Masthead Logo

We Cover The County...
40,251 Audited Circulation

WEEKLY POLL   |   Community News   |   EQUINE   |   Schools & Buses

column width padding column width padding

Tests confirm algae toxins at Conestogo Lake

MAPLETON - Recent samples taken from Conestogo Lake have tested positive for low levels of algae toxins.

On Aug. 1 the Grand River Conservation Authority (GRCA) confirmed that July 20 samples collected at the lake by the Ministry of the Environment and Climate Change (MOECC) did contain microcystin toxins.

However, the GRCA added the toxin levels were “well below” the recreation guideline of 20 parts per billion.

“Based on these results, while the risk to recreational users of the reservoir in areas where no algae is visible is low, the [GRCA] advises that users should continue to avoid any algae mats on the shoreline as well as algae “scum” floating in the water,” states the GRCA press release.

May appear at any time

Officials say the weather conditions this week “are ideal for the formation of blue-green algae and reservoir users should be aware that blooms may appear at any time.”

Anyone who spots a blue-green algae bloom can call the Spills Action Centre at 416-325-3000 or 1-800-268-6060.

Those with health concerns after using the reservoir, such as a skin rash, should contact Wellington-Dufferin-Guelph Public Health at 1-800-265-7293 ext.4753.

“Algae blooms are a natural phenomenon” that “tend to occur during hot, dry weather,” officials say, adding “when the algae die, the toxin is released in the water, where it naturally breaks down in about five to seven days.”

More information on blue-green algae is available at

August 11, 2017


Tell Us What You Think

Login to submit a comment

Comments appearing on this website are the opinion of the comment writer and do not represent the opinion of the Wellington Advertiser. Comments that attack other individuals or are offensive, unsubstantiated or otherwise inappropriate will be removed. You must register or log in in order to post a comment. For more information, read our detailed Comment Policy and Guidelines.




Wellington County

Related Stories

  • Successful tree establishment takes much advance planning
  • 4-H alive and well in Mapleton
  • 4-H club has sporting focus
  • 4-H craft club visits Waterloo art studio
  • 4-H Kukoo Crafties meet
  • 4-H members discuss etiquette
  • Acting CAO appointed by Mapleton council
  • AG society plans ATV raffle to raise funds
  • Agricultural construction continues to drive local building numbers
  • Barn destroyed, 72 cattle perish in deadly blaze
  • Bridge projects receive approval
  • Children’s Farm Safety Day
  • Chinese delegates visit environmental farming operation
  • Chinese food safety delegation visits Mapleton facilities
  • Clovermead Farms recognized with Farm Family Award
  • Consulting firm engaged on urban design guidelines for Community Improvement Plan
  • column width padding column width padding column width padding

    The Wellington Advertiser





    Digital Publications


    Twitter Logo

    Free Press News Network Logo