New pond build heavy rain yesterday wondering why I have a layer of haze on my water.

My pond goes through hazy phases and they are quite mysterious to me. The following link may prove to be helpful. It covers many natural causes for surface scums. If nothing else, it helps rule out the nasty ones...

https://www.townofchapelhill.org/home/showdocument?id=28866

This time of year the haze on my pond is mostly from tree pollen.

Haze on the water is fine, so long as you don't have fire in the sky.

That's "smoke on the water" anthropic! It's "purple haze all in the brain" that's not a concern. lol