Frostline charts?

[idigtractors]

Originally Posted by Kamper

Does anyone know a site or have a link to the frost depths in New Hampshire?

I am considerring a project to send my laundry water straight into my leach-tank (not leach-field). I am considerring other options too, but this data is understandably of interest to me.

Thanks in advance!

That's a hard one to answer as it can vary from one street to another no matter where you are located. A pretty set depth for not freezing is 4 feet or deeper. When I built our home and dug the foundation at the end of Jan beginning of Feb. it was just below 4 feet. Good luck.