I noticed something on my basement floor... whatever it is seems to be coming from a small hole in my basement wall. The substance is running directly into the sump pump and is only in the one spot in the basement. Does anyone have any idea what it could be? It has the consistancy and looks like motor oil. We live in the city and therefor are on the city's septic system. The house was built in the early 1900's. I have no idea what to do or even who to call to check this out so any help would be greatly appreciated!