Water proofing is a multi layered process and grading is a big part of that.

That being said, we don't install sump pumps around here. Staying dry doesn't rely on that. Staying dry is based on grading, passive drains, and waterproofing.

Reminds me of a house we were looking to tear down. Had a basement. It was just after a tropical storm and there was water in the basement. Turns out the power was out and so the sump pump wasn't working (found out later by property owner). That is the thing, power goes out during large rain events. We have more power outages with "ice" storms generally here but tropical storms/hurricanes too.

All these things are incredibly regional. But I would ask your builder what happens when it rains and the power goes out? Are you supposed to have a battery for your sump pump? Why do you need a sump pump? What happens when it fails - like all things do eventually?

Grading of both your house and the overall neighborhood is very important to the overall “drainage” plan. It directs water away from the house(s) into the storm water systems. As is your sump pump being fully operational to direct water away!

I spent most of my life on a flood plain that has some historically devastating floods (and a couple during my lifetime), one definitely wanted a sump pump as part of your overall plan (and to keep insurance premiums down!). You can install a sump pump alarm to warn you of failing, but also make a point to check it regularly to ensure it is working.

I live on a higher elevation now, but almost all new builds, including mine, are built with sump pumps and by local by-law new builds since 2005 must connect to the underground storm water system. Again, here they also factor in to reducing your insurance premiums.

Got a second response back from our site supervisor. He went to the house and noted the pipe on the exterior was missing to direct the sump water away from the house. He said he hooked up 20 feet of pipe to get the water away from the house and he feels that should take care of the problem. We are supposed to get rain intermittently all week, so time will tell!

Thanks for the responses.

There are 12 volt sump pumps, uses a battery similar to a car battery, hooked up to a permanent charger, hooked up to 110v. If the house loses power, the sump pump will continue to work.

does it look like the waterproofing and exterior drainage are adequate
(in combination with future grading and pump when needed)? The black
spray material and gravel/tubing at the bottom, specifically?

Sprayed-on asphalt cutback is dampproofing, not water proofing. It went out of favour in the Toronto Metro area where I build in the mid '90s when plastic waterproofing membranes became available at reasonable prices. (It's simply wrapped on top of the cutback.) All concrete eventually cracks and the asphalt cutback will not fill in or cover those future cracks.

Another approach is to backfill the foundation with loose material such as sand or recyled concrete and cover the ground around the foundation with an impermeable clay.

If you're not finishing the basement, elastomeric injection will easily repair future leaks.

You'll only be able to decide if all is ok once sump pump is setup and running to push water out since your foundation is setup for a sump pump; I think you said your builder has done that.