[Just Sold]

Digging test pits without a soils engineer will do you no good. A soils engineer understands what soils are what, where the seasonal high water mark is etc. Also the soils engineer is licensed by the state of NH and would do the septic design. They also would have access to the excavation equipment you are asking for. There are lots of sources for excavation equipment so maybe someone here on the forum can provide the name(s) of a few soils engineers.

I know I am in the process of building a new home and have been through the process a while back.