Happens to my boat all the time. It's fresh water and it's going in your bilge as designed. Now.... if it's not
going in the bilge (i.e., puddling at a bulkhead), thats another issue. That happened to me once when the mast drain became blocked.
So, two good things. Your boat is functioning as designed, and you've got a Keel stepped mast! Be happy....why worry!
Besides, there are so many other real issues to worry about on a boat!