Sealing a cement filled old duct hole in basement wall.

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Due to crazy weather (lots of snow immediately followed by lots of rain) and improper snow shoveling, I managed to create an ice dam on my driveway.

Which in turn caused my foundation wall to leak water at what appear to be an old duct hole, and only leak at that spot. The old duct hole has been filled with what appear to be regular cement, with some yellow stuff around it which I assume is some sort of epoxy? That spot is the only place where water is coming out of. The location is about half a foot to a foot below grade, right beside the driveway. The house is about 50 years old.

Now, I'm looking to fix the ice dam from the outside, but just wondering what can be done to seal the old duct hole. Can I cover it with some hydraulic cement? What about membranes and such? Is this a DIY or should I get professionals to come in?

I don't recall that area leaking during summer or fall, but it has constantly leaked in the last months or so due to the freeze thaw cycles as well as ice damming. The house is located in eastern Ontario.

Photos of the duct hole.

https://drive.google.com/file/d/1JLj...ew?usp=sharing

https://drive.google.com/file/d/1DNy...ew?usp=sharing

Photos of the ice dam.

https://drive.google.com/file/d/1Ne5...ew?usp=sharing

Any help is appreciated.

Thanks.
 

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