dog seems to be leaking urine.?

1 year old lab/golden retriever mix. yes_ kindest animal I've ever met. she seems to be leaking urine for some reason. while laying underneath the kitchen table tonight during dinner, she left a small puddle of urine. she then left some pretty sizable drops on the floor while walking away. I did take her outside and get her to pee (quite a bit came out) because the door she normnally has to come in and out is shut (our outside air temp is almost 100F).

no obvious problems: no discharge and urine is not almost colorless (a surprise to me as of how hot it is out). my guess is that she drank so much darn water during the afternoon (SHE WQas in fact outside this afternoon) that she is having bladder conteoil problems (first time ever). should we be concnered?? TAHNK YOU.