A visible bloom of blue-green algae has been observed in Lake Apsey but is not expected to adversely affect Espanola’s drinking water.
For the second time this year, the province has advised Public Health Sudbury & Districts that after testing samples taken last week, cyanobacteria have been confirmed in Lake Apsey.
Burgess Hawkins is with the health unit and says the ministry reports the Espanola Water Treatment Plant has an effective barrier to all algae and can reduce the levels of algae toxins found in raw water, which means the municipal drinking water supply is protected.
He adds residents who access their water from the water body should avoid using or drinking water where blooms are visible.
The agency is continuing its monitoring of the lake and will provide an update if there are any changes.
Blue-green algal blooms could also appear in other parts of the lake.
Because blooms are not anchored, they can move from one location to another through wind and water currents and new blooms can also form.
Blue-green algal blooms have an unsightly pea soup appearance and foul smell and can produce toxins.
Toxins from blue-green algae do not remain located with the algae bloom and can spread throughout the water body.
However, the highest concentrations of toxins are usually found in blooms and scum on the shoreline.
These dense accumulations pose the greatest potential risks to people and pets.
The algae toxins can irritate a person’s skin and, if ingested, cause diarrhea and vomiting.
If a person ingests high levels of toxin, they could suffer liver and nervous system damage.
Public Health Sudbury & Districts advises people using lakes and rivers to be on the lookout for algal blooms. If you see or hear of a bloom anywhere near your property or water intake line, avoid using it for any purpose including drinking or cooking and contact the Ministry and/or public health.
For more information on blue-green algae, visit phsd.ca or call Public Health Sudbury & Districts at 705.522.9200, ext. 464 (toll-free 1.866.522.9200).
