Where do I find a private property dam inspector in NJ?

There is land I'm interested in purchasing near Morristown New Jersey
which has a tiny 100 foot diameter 10'foot deep pond with a ten foot
tall embankment and a 1-foot diameter pipe about 5 feet long going thru
that bank to the next property.

Where do I find a POND & DAM INSPECTOR to inspect that?
The home inspector the real estate agent set up said just go to the
town but I'm afraid of the town (I'd rather get a private assessment
first).

I don't even know what to look for in my searches (hydraulic engineer?
dam inspector? pond inspector? civil engineer? waterway engineer?)

Whoever they are, I need to ask those dam people if they think the
embankment & outflow pipe is structurally sound and what it might need
to fix it.

Any help for me?