I wouldn't swim in it but dogs do all the time. Lots of hooks out there. This is a heavy fished area. There are better places to cool off.
If you want to swim you have neshaminy and nockamixon state parks both have pools. Core creek has the lowest watercraft rentals. Bicycle boats canoes and rowboats just to name a few. I see some pets out there but most people take their pets to the pet area and they have a plastic kiddie pool
I've never seen people swim there.
They have a lake not sure about the pool.
Thanks! Your answer is awaiting moderation.