I personally would have allowed the service raceway here, containing the service entrance conductors to be installed without the concrete encasement.
There are millions of these installations around the USA. During my own career while inspecting service raceways in the Northeast, I have seen many that had to pass over the oil tank to reach the service equipment because of the entry into a basement.
I believe the LA City Code includes some rule that allows the raceway with service entrance conductors to be run into a building for more than 25 feet.
I don't have that Code, so I cannot be sure.
If someone from the Los Angeles area can take a look, I would appreciate that help.
Joe Tedesco, NEC Consultant