Wisconsin AIPG Sponsors Best Geology Project Vote
Christine Lilek, CPG #10195
Three companies competed in Wisconsin AIPG’s GoFundMe “Best 2016 Wisconsin Geoscience Project” scholarship fundrais- er: Project A – CBI: Geothermal Energy Project on Remediation Site, Project B – Natural Resource Technology: Groundwater Relief System, and Project C - Marek Landscaping LLC: Bluff for Wisconsin AIPG’s Student Scholarship Fund!
The final votes were cast on October 31. While each of the 3 projects received many votes of appreciation, the winner was Project B – Natural Resource Technology: Groundwater Relief System!
Project B was located at the Wisconsin Public Service Corporation’s (WPSC) former manufactured gas plant (MGP) site in Two Rivers, Wisconsin. In 2015, WPSC completed a Time Critical Removal Action (Removal Action) at their former Two Rivers MGP site (Site) in Two Rivers, Wisconsin to address MGP contaminated materials through the United States Environmental Protection Agency’s (USEPA) Superfund Alternative Site (SAS) program.
Located in a residential and industrial neighborhood, the Site covers approximately 4 acres. The Two Rivers MGP oper- ated from 1925 to 1946 and produced waste by-products such as coal tar. Handling of the waste resulted in contaminated soil and groundwater at this Site. To address the source area of MGP waste, approximately 80,000 cubic yards of coal tar-impacted soil were treated utilizing in situ solidification/ stabilization (ISS) and approximately 26,000 cubic yards (47,000 tons) of material were disposed at a licensed landfill. To accomplish the ISS treatment a complex groundwater relief system was designed and installed.
NRT’s design team evaluated how the addition of the imper- meable solidified soils underground would affect groundwater flow and potential for flooding adjacent properties.
Pre- and post-groundwater conditions were modeled and indicated a groundwater relief system would be required to prevent flooding. To address this, an innovative design was developed in which the groundwater relief system required the main excavation area to be backfilled with clear stone.
Photo Credit: Courtesy of NRT Restored Shoreline along the West Twin River
Groundwater relief trenches with clean, rounded 2-inch stone were installed underground from the relief system and around the solidified soils to direct the groundwater via grav- ity from the relief system to an area on site where wetland
soils remained.
Additional project details can be found at:
http://www.naturalrt.com/ sites/default/files/wire-pdfs/AIPG%20 Best%20Geoscience%20Proj%20 Submittal.pdf
The Wisconsin AIPG congratulates NRT on their award-winning project and looks forward to the submittal of other geoscience projects for our 2017 “Vote for the Best Wisconsin Geoscience Project” scholarship fundraiser!
Invitation from AIPG to Submit Articles!
Photo Credit: Courtesy of NRT Computer model used to design the groundwater relief system
www.aipg.org
Author instructions are avail- able on the AIPG website at
http://aipg.org/gettingpub- lished.
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