water seepage into basement "help"

I am an landlord and in the basement unit there is water spots on the carpet near the foundation walls in one room. The house is 30 years old and never had any problems before! I have own the duplex for 5 years and never seen any water problems. It is spring time and there is a lot of water in the ground and it is raining out. There is no water on top of the grass. There is no sump in the house. What should I do ? Is there any tempulary fixes I can do until the ground thaws out.