Underground electrical box?
The other option is to put in a &quot;hand-hole&quot; so called - you've walked over them, some you have driven over (those ones cost more). They are (generally) like a box missing the bottom, with a removable top, and you set them over the conduits so the top is flush with the ground surface. You still need a waterproof splice method, but if you ever need to access it again it's a whole lot easier to find. The drive-over ones are usually made of concrete, the others are commonly plastic.
If you have &quot;brought the grade down two feet&quot; I'm wondering how much cover your conduit (or is that water pipe being used as conduit?) now has.