News Flash

Home - News Carousel

Posted on: June 21, 2022

Watch for Harmful Algae Blooms

Health Services image

Contra Costa Health Services advises caution on the part of anyone who boats, fishes or swims in or around Discovery Bay after large blooms of blue-green algae were discovered in multiple locations in and around the community. 

A bloom is a buildup of blue-green algae, or cyanobacteria, that creates a green, blue-green, white or brown coloring on the surface of slow-moving waterways.

Human exposure to water containing toxic harmful algae blooms, for example by direct body contact or ingestion, can result in a number of symptoms including the following:

  • Rashes
  • Eye, nose, mouth or throat irritation
  • Allergic reactions
  • Headache
  • Gastrointestinal upset, such as abdominal pain, nausea, vomiting and diarrhea

Learn more about harmful algae blooms.

See Health Services press release for more information and resources.

Facebook Twitter Email

Other News in Home - News Carousel

County Seal

UPDATE on Board of Supervisors Meeting

Posted on: August 11, 2022

Heat Safety Tips

Posted on: June 22, 2022
Residents  Contra Costa  County Guide-1

Wildfire Preparedness & Safety

Posted on: June 22, 2022
County Seal

Voter-Approved Measure X

Posted on: February 24, 2022
County Seal

Renter and Landlord Resources

Posted on: January 6, 2021
County Seal

COVID-19 Emergency Relief Fund

Posted on: June 21, 2022