House was built in 1950 and has a raised rubblestone foundation, so there's no footing under the ground. Typical dirt crawlspace. This is my mother's house. The previous owners had the natural gas water heater in the corner of the kitchen. Before my parents could buy the house, the FHA demanded that the former owners move the water heater elsewhere. To move it, they dug out an area of the crawlspace maybe 12 feet long x 3.5 to 4 feet wide and about 3 feet deep and poured a thick concrete floor for it. They built a cinderblock wall with mortar all the way around it, dug a hole to put a pump in the lower side and put the water heater at the upper end of said dug out area. Not exactly the smart thing to have done, but it is there.
Behind one particular corner of the wall, there is a hole in the crawlspace dirt about 2 to 2.5 feet below the back of that wall. This is also that same distance below outside ground level. When it rains a considerable amount, water comes out of that hole in the dirt, goes through the wall and into that dug out area to be pumped out. At various times of the year, it could take only an inch of water to make it flow out of that hole. Other times it might rain 4 inches within just 2-3 days and it stays dry completely. I don't understand this. There is a sewer drain pipe for the washing machine and bathroom sink that comes out of the back of the house house and joins a main clay sewer line just outside of the back of the house. This is about 5 feet from where that hole in the crawlspace dirt is. There is also a clay sewer line about 6-8 feet from it. Could this be some type of storm sewer backup leaking out of a hole underground in that sewer pipe? I'm in the state of Georgia, specifically just outside of Atlanta. No known springs in the area. The problem is just a couple of feet underground outside. I have marked the outside of the house where this hole is in the crawlspace and plan to dig down a few feet to see if I can find this hole and follow it to its source.
https://i.ibb.co/bgHpQV9/hole.jpg
https://i.ibb.co/0nVPxNh/2.jpg
https://i.ibb.co/BBbM3Xk/3.jpg
Any advice/suggestions?
Behind one particular corner of the wall, there is a hole in the crawlspace dirt about 2 to 2.5 feet below the back of that wall. This is also that same distance below outside ground level. When it rains a considerable amount, water comes out of that hole in the dirt, goes through the wall and into that dug out area to be pumped out. At various times of the year, it could take only an inch of water to make it flow out of that hole. Other times it might rain 4 inches within just 2-3 days and it stays dry completely. I don't understand this. There is a sewer drain pipe for the washing machine and bathroom sink that comes out of the back of the house house and joins a main clay sewer line just outside of the back of the house. This is about 5 feet from where that hole in the crawlspace dirt is. There is also a clay sewer line about 6-8 feet from it. Could this be some type of storm sewer backup leaking out of a hole underground in that sewer pipe? I'm in the state of Georgia, specifically just outside of Atlanta. No known springs in the area. The problem is just a couple of feet underground outside. I have marked the outside of the house where this hole is in the crawlspace and plan to dig down a few feet to see if I can find this hole and follow it to its source.
https://i.ibb.co/bgHpQV9/hole.jpg
https://i.ibb.co/0nVPxNh/2.jpg
https://i.ibb.co/BBbM3Xk/3.jpg
Any advice/suggestions?