Major NW Rain: Basement has leak, but walls are dry
This is our second winter in our home (built in 1963). Former owners disclosed flooding when the Portland area had major flooding in 96' but put in drains etc. to solve the problem. Last winter we had very wet weather, but no problems. The carpet and basement show no signs of leaks, floods etc (no mildew, dampness, musty smell etc). In the last few days we have had tons of rain. Tonight we went to one corner of the basement and noticed the carpet was wet. We moved the furniture to find that the entire corner was soaked. We dried the area with towels as much as we could and then pulled carpet back and repeated. We now have a heater there and are running fans, but are unsure of our next step. As I said before the walls are totally dry, it seems to be only the floor.
What should we do next?