While not the actual pipe in question, I discovered some water dripping off of an overhead, copper pipe down cellar, which looks alot like this one does. Green corrosion on the outside and now it's dripping in 2 places. Texted and emailed the landlord, she has a call in to her handyman. So far, no word from him, it's been several hours. Luckily it's currently just dripping, I have a dehumidifier going and there is a plastic tub collecting the water that is splashing onto the washer. The green stain on top of the washer and a pool of water alerted me to the situation this afternoon.