Is there a water area for the dogs to get wet too? Or is it just for kids? I'm looking for a dog water park

Yes

I saw a little stream-like thing in the dog park

I saw people take their dogs on leashes to the stadium next to the water and swings where there is water splash pad.

Dogs are separate from the kids. It's probably a safety issue.

There is a dog park, but didn't see water.

There is a dog park. But no splash park for dogs.

The splash pad is public space, so if the dog is one a leash, it should be fine. I don't recall there being a splash area in the dog run.

I did not see one. Only for the kids. There's a dog water park in Fairfield. I'm sorry I don't remember the name