Waterpump is NOT likely to make a whining noise Bud, I'd suggest investing in a stethascope to get a 100% for sure of whats noisy, but like Unity suggested...pull the bell and spin the pullies. Most likely its a tensioner/idler pulley or ever the alternator
Oh, and if your water pump makes a meowing sound, then get concerned...
LoL, I love it when my neighbors cats get in my belt! Haha