In this house, on crawl, built in 2003 the main water line from the street runs under the footing. I can't say I remember seeing this before; I typically see it running through the foundation wall ââ¬â but I may be having a senior moment. Erosion is occurring under the footing from water running through this opening. Even though it has not rained here for months, there is still a puddle of water. My concern is that if the erosion continues - after a bunch of years the footing will be compromised. My questions: Is running the water line under the footing allowed? Is it even addressed in code? What would you say about this? Do you share my concern about the erosion and eventually compromising the footing? Click to Enlarge 44.55 KB Click to Enlarge 64.94 KB