human
How do I know when it is safe to swim in my local lake?
assistant
The best way to determine if a body of water is safe for swimming is to check the local health department's website or call them directly. They will be able to provide you with the most up-to-date information about any advisories or warnings related to that particular body of water. Additionally, you can also consult your local weather reports and look out for any signs posted at the beach such as "no swimming" or "warning flags."