What do you have for a foundation wall? Perhaps you have really pourous soil? Perhaps you need gutters where there AREN'T gutters? And I know you said you read the past Posts about Water In Basements BUT, did you go out in a 'heavy rain' to watch where the water is coming AND going? Don't assume anything as I once did only to FINALLY find the 'source' of my water was from my neighbor's downspout!!! (And yes, I too, did 'all the right stuff' but still got water. IE., I finally saw it was coming from my neighbor ...)
Anyways, do a 'live inspection'. Let us know later on how you make out and we'll go from there. My best to ya and hope this helps.