As RPI celebrates its 15th year and RPI Group enjoys its 6th, we are most definitely not resting on our laurels. We are just getting warmed up, and extensive efforts are being taken to demonstrate proof of concept documentation for our Trap & Treat® approach to in situ remediation. These activities include, but are not limited to, extensive laboratory testing, injection method documentation, injection system and tooling development, and post-injection data collection. Pay close attention, each month, as we introduce key aspects of these efforts, and also announce a new product (oops, did I just let CAT100™ out of the bag?).
RPI Group is compiling a database of pre and post remediation data from sites where monitoring wells have either been replaced or offset post injection to further the discussion started in our October 2016 Newsletter. We continue to welcome this practice and are willing to replace existing monitoring wells compromised during injection activities at no cost (as detailed in the aforementioned newsletter). We are confident in the RPI Approach to remediation and the results it generates. Two interesting projects from the database are highlighted below.
The first site presented is located in Colorado. Two of the on-site source area monitoring wells were replaced in May of 2015. Six post-replacement monitoring events have occurred and the data is provided in Figure 1 below. This application was designed and installed by the RPI Group project team of AST Environmental, Inc. (AST) and Vista Geoscience. The design was based on Remedial Design Characterization (RDC) data generated at no cost by the RPI Project Support Laboratory.
Figure 1. Pre and Post Injection Benzene Groundwater Concentrations (Colorado)
The second site, located in Finland, holds the distinction of being our only project to date where the wells were replaced not once, but twice. Due to site development and regarding operations, the replacement wells were reinstalled about 7 months after the initial replacement well reinstallation (Figure 2). This application was designed and installed by the RPI Group project team of AST and Ejlskov A/S. This site was also designed based on RDC data generated by the RPI Project Support Laboratory.
Figure 2. Pre and Post Injection Benzene Groundwater Concentrations (Finland)
As can be seen in the data presented, the groundwater from replacement monitoring wells is clear evidence (no pun intended) of treatment using the RPI Approach and BOS 200®.
For additional information on these sites or other sites from the database, please contact Mike Mazzarese (email) with AST.
Remediation Products, Inc.