Harmful Algae Bloom Observed in a Cove on Lake Wylie
Published on August 14, 2025
FOR IMMEDIATE RELEASE
Contact: Olivia Edwards
Olivia.Edwards@MeckNC.gov
Mecklenburg County, N.C. - Active Harmful Algae Bloom (HAB) has been found in a cove on Lower Lake Wylie (see map below). Residents are advised to avoid this area of the lake until the bloom is no longer present.
The bloom was observed by Charlotte-Mecklenburg Storm Water Services staff during a routine monitoring effort. The algae found in this bloom has been confirmed as cyanobacteria, and, therefore, it can produce toxins that have been linked to severe illness in humans and animals if ingested.
You cannot tell whether a bloom is harmful just by looking at it, so it is best to avoid the following activities around possible algal blooms:
- Swimming, boating, kayaking, fishing, jet-skiing, water-skiing, or wading through the water
- Touching or handling mats of algae
- Ingesting the water
- Using the water for washing of irrigation
- Pets and children are at a higher risk of exposure so keep them away from water that appears discolored or scummy
If you accidentally come in contact with a harmful algae bloom, take the following actions:
- Wash thoroughly
- Immediately seek veterinary care if your pet appears to stumble, stagger, collapse or vomit uncontrollably after being in contact with the water
- Immediately seek medical care if a child or adult appears ill after being in contact with the water
Staff with Charlotte-Mecklenburg Storm Water Services will continue to survey the area and provide updates as needed.
If you see a bloom, please make sure to report it so staff can investigate:
- In North Carolina, please report to NCDEQ at Algae.NC.gov.
- In South Carolina, please report to SCDES by calling (803)-898-8374.
To receive notifications of Lake Advisories in Mecklenburg County, text MECKNOSWIM to 888-777.
Approximate Location of Harmful Algae Bloom (HAB) is outlined in "Purple” Below
Related Links
Learn More at Storm Water Services