Remediation Automation System (RAS)

Gregg’s Remediation Automation System (RAS) is out in the field proving its value again on another project.

For this current project, Gregg’s RAS is helping our field crews complete a 6-week project at a confidential DOD site. We are injecting ~300,000 gallons of a 2% Emulsified Vegetable Oil (EVO) solution into multiple Direct Push Injection Points. To maximize our onsite efforts, and to reduce overall field time, we are injecting simultaneously into 10 direct push points. We are utilizing a Track Mounted Geoprobe 7822 to advance 5-foot long Injection Tools, targeting 10-15 foot vertical treatment intervals. A high production rate project like this requires quite a bit of equipment, including 750 feet of Direct Push Tooling, 2,500 feet of Injection Hose and 1,200 feet of Hydrant Hose.

If you are not familiar with Gregg’s Remediation Automation System (RAS), it is a proprietary system created by the Gregg Team, that uses a combination of custom software and electrically actuated valves/hardware to aid our field crews during In Situ Remediation projects. In addition to the control mechanisms, the system is equipped with pressure transducers and digital flowmeters/totalizers which communicate with the software. The system is also fully grounded and controlled by emergency stop switches in multiple locations, as well as integrated safety shut-offs.


This is the RAS software home screen. In this window our Remediation Technicians enter the injection point ID number, treatment interval, gallons per interval, maximum flow rate, and maximum pressure. Once that data is entered, the software takes over maintaining the design parameters and automatically stops once the target volume has been reached.


This is the RAS software summary page. In this window our Remediation Technicians can easily monitor the progress of all active injection points.

Although we believe in our technology, we also believe in back-up systems. Each of the 10 manifold branches are equipped with both digital and analog data collection. We are constantly comparing both data sets to verify accuracy. There are also manual shut-offs on each actuated valve in the event the operator needs to manually override. Additionally, each actuated piece of equipment can be overridden through the software, or via a master control panel.

Additional mixing modules are currently being tested and developed for the Remediation Automation System (RAS). If you have a design that you are considering, that could be simplified with the RAS, please let us know.

If you have any questions, or if we can help support any of your current or upcoming projects, please contact myself at ( or reach out to your regional Gregg office.