Geophysical Survey: Prepared and submitted preliminary site investigation request and detailed site investigation (DSI) work plan to the Missouri Department of Natural Resources-Geological Survey Program (MDNR-GSP) for a proposed 40-acre utility waste landfill within the New Madrid Seismic Zone of Scott County, Missouri. Services included the planning and oversight of a comprehensive geophysical survey for the initial phase of the DSI, which consisted of ground penetrating radar (GPR) technology to identify potential morphoseismic features (caused by liquefaction). Services also included the excavation and description of verification soil test pits and the GPR survey report preparation for submittal to the MDNR-GSP.
Groundwater Monitoring & Statistical Analysis: Services provided included the collection of quarterly groundwater samples, water quality analytical review, and groundwater monitoring reports of the 36 monitoring well network at the Ameren Missouri Labadie Energy Center's utility waste landfill. Services also included the preparation of a Sampling and Analysis Plan (SAP) and the statistical analysis of eight rounds of background water quality data.
Karst Assessment: Provided a professional opinion concerning an impoundment (i.e., pond) located on a property in Boone County, Missouri to determine if the impoundment was an actual karst-related sinkhole. The karst assessment was a requirement of the county health department for the permit approval of an onsite wastewater treatment system (OWTS) to serve a proposed single-family residence that was geologically mapped in the Burlington-Keokuk Limestone bedrock, where sinkhole development is extensive. Services included a site evaluation, geological literature review and letter report regarding the site.
References Available Upon Request
Debbie Hartman recently joined the staff of GREDELL Engineering Resources,Inc. (Gredell Engineering) Read More
GREDELL Engineering Resources is sponsoring the 2020 Association of Conservation Engineers Virtual Read More
Our Open House yesterday was a huge success. We appreciated seeing so many of our friends and Read More
Brian W. Robben, P.E., R.G./P.G., recently joined the staff of GREDELL Engineering Resources, Inc. Read More
Paul Vitzthum recently joined the staff of GREDELL Engineering Resources, Inc. (Gredell Engineering) Read More
Gary Pendergrass, P.E., R.G., recently joined the staff of Gredell Engineering as a Senior Project Read More
Elke B. Boyd, P.E., BCEE, Senior Civil Engineer with GREDELL Engineering Resources, Inc., will be Read More
Unfortunately, due to the increasing COVID-19 infection rate, employer travel restriction, and Read More
Chandler Olmsted recently joined the staff of Gredell Engineering as an engineering intern. Chandler Read More
Elke B. Boyd, P.E., BCEE, Senior Civil Engineer with GREDELL Engineering Resources, Inc., presented Read More
GREDELL Engineering Resources, Inc. staff recently attended the 2019 Missouri Waste Control Read More
“Access to clean, safe drinking water and reliable, modern wastewater treatment is a necessity Read More
Abra Spisso, recently joined the staff of GREDELL Engineering Resources, Inc. (Gredell Engineering) Read More