I certainly don't want to tell you anything dangerous, but last year our lawn was fertilzed in error (they were supposed to dout next door neighbor's) I called and complained and complained, andthey told me, it should be perfectly safe in 24-48 hours and I could speed that along with watering. ( Yeah, and what was I supposed to do with 2 large dogs inthe mean time?)

I had to let them out, set up the sprinkler for awhile and did the best I could to get is dissolved. We had no issues ( Course I don't know if cats are more or less resiliant then dogs...)