Eastern Redbud beside septic?

Hi there,
I’m looking for a taller nitrogen fixer to plant beside a septic field. I already have a couple of New jersey teas. I’

d love Eastern Redbud and have read it’s ok beside sepctics but I’m suspicious. Anyone know anything about this?

I live in Zone 4b and prefer native plants so was also thinking Buffalberry or Wild Senna but open to anything.

Thanks!