Lake San Antonio (Monterey County)

BRADLEY — Monterey County Public Works, Facilities and Parks is changing warning signs at Lake San Antonio from “Danger” to “Caution” regarding blue-green algae in the water.

Test results in August and September showed the lake water contained cyanotoxins, toxins produced by blue-green algae and prompted danger warnings. 

Results from additional testing done in mid-October show cyanotoxins remain but in reduced amounts, allowing the “Danger” posting at the lake to be downgraded to “Caution” as of last Monday, Nov. 14.

The more favorable results allow visitors to have more, but still limited, use of lake waters. 

Recommendations for lake use under the “Caution” posting include: 

  • Stay away from algae and scum in the water. 
  • Keep children away from algae in the water or on the shore 
  • Do not let pets and other animals drink or go into the water or eat scum on the shore. 
  • For fish caught here, throw away guts and clean fillets with tap water or bottled water before cooking. 
  • Do not use this water for drinking or cooking. 

For more information relating to harmful algae blooms, and information about what to do if advisory signs are posted, visit this link.

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A staff member wrote, edited or posted this article, which may include information provided by one or more third parties.


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