Specifications include, but are not limited to: Locate water service mains and / or other buried infrastructures. The process shall be
non-destructive using a combination of pressurized water (up to 2000 PSI) to soften the
soil and a vacuum system to remove the slurred mixture.
Remove up to 60 cubic yards of materials per day.
Dispose of material removed properly.
The equipment used shall be as follows:
Have a vacuum blower rated 5,300 CFM at 28” Hg vacuum minimum, a water
pump rated 19 GPM at 2,900 psi minimum and a storage capacity of at least 15
cubic yards. Smaller equipment shall not be allowed.
The equipment used shall be capable of opening a hole minimum of 8”in
diameter and 25ft deep.
The equipment provided shall have a heating unit that allows frozen ground to be
thawed and excavated.