2001 Tahoe---leaking???

I have a 2001 Tahoe LT just broke 100,000. Have had it from new. Outstanding condition, really babied. Well now it leaks in the rain. Drivers floorboard gets soaked. From front of drivers seat forward......appears to be really close to the exit of the emergency brake line. That seal actually had a rather large puddle of water in it. However it did seem to be sealed there. There seem to be no other signs of leakage any ideas?????


PS thanks I'll be cleaning my TB to eliminate rough idle! (I hope)

Well, no news on the leak I see......I did however clean the TB and she purrs like a kitten thanks for the help.