Water Jet Studies
	Waterjets use high pressure fluids to cut through hard material. They can be used in subsurface work to make fairly precise cuts in soft (limestone) and hard (granite) bedrock with minimal surface disruption.   Waterjet cutting head High pressure fluids cut hard material. Water jets are used for quarrying granite and other types of rock. Waterjets can be used as a method for emplacement of PRBs, or Permiable Reactive Barriers. PRBs are vertical walls of material which react to, and can help remediate contaminants in groundwater. Waterjets work well for this because they can create a continuous slot in bedrock for a continuous PRB. This diagram of the waterjet cutting head shows important components that make it possible for the waterjet to do its job. Waterjet slot cut in granite Existing equipment used for the waterjet can also be used to contruct the PRB. For the use of constructing PRBs, deep plumes can be targeted using waterjets. This diagram shows an example of how the waterjet would be used to install and PRB in a bedrock environment.