also your ac evaporator or heater core putting off some condensation and/or water getting cycled out of your a/c system and your drain tube is clogged. check it out, probably not a problem though. check to see if the water is hot or cold, and you will find your problem
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98 se-r w/ p/r cai, stillen header, courtesy exhaust, JUN flywheel, ACT clutch, NOS nitrous kit, eibach springs, kyb struts, st sways, cusco camber plates, f/r strut braces, lotsa bushings, and a bunch of other crap not really worth mentioning