Geologic Cross-Section of Alluvial Sediment

Geological / Groundwater Evaluation

Another specialty of Gredell Engineering, our site characterization services include the subsurface investigation methods and techniques to properly characterize the geologic and hydrologic conditions underlying a site. Through sample collection and characterization of soil, bedrock and groundwater, our staff geologists possess the experience and expertise in characterizing a site's geology and hydrogeology. Gredell Engineering provides monitoring well and piezometer construction services in general accordance with the Missouri Department of Natural Resources (MDNR) 10 CSR 23-4 regulations. Our well construction experience includes installations in soil and bedrock using drilling methods such as hollow-stem auger (HSA), solid-flight auger (SFA), direct-push, sonic, air rotary and rotary-wash techniques. The design, installation, monitoring and data management of groundwater monitoring networks is another specialty here at Gredell Engineering. We design groundwater monitoring systems, and prepare sampling and analysis plans (SAP). Through characterization of the subsurface geology and groundwater quality across the groundwater monitoring network, we apply statistical analysis techniques to determine an appropriate and effective statistical approach in accordance with the regulatory requirements. Gredell Engineering hydrogeologic flow analyses services begin with an extensive description of the subsurface through the collection of soil samples and/or whole-rock obtained during subsurface characterization activities (e.g., drilling). Geophysical well logging to correlate discrete intervals, packer and aquifer testing to determine the hydraulic conductivity value of the geologic strata, and two- and three-dimensional groundwater modeling techniques are just a few of the services we provide at Gredell Engineering.

News

Elke Boyd to Present on Wastewater Irrigation at MRWA Northeast Training Day
Elke B. Boyd, P.E., BCEE, Senior Civil Engineer with GREDELL Engineering Resources, Inc., will be Read More
Abra Spisso Joins Gredell Engineering
Abra Spisso, recently joined the staff of GREDELL Engineering Resources, Inc. (Gredell Engineering) Read More
Gredell Engineering's Baseline Site Investigations Lay Groundwork for New Center of Soy Innovation
GREDELL Engineering Resources, Inc. provided enviromental and geotechnical services to the Missouri Read More
City of Lanagan Obtains Grant Funding for Water System Upgrades
“Access to clean, safe drinking water and reliable, modern wastewater treatment is a necessity Read More
Staff Attend MWCC Conference
GREDELL Engineering Resources, Inc. staff recently attended the 2019 Missouri Waste Control Read More
Elliott and Gredell Present at MWCC Conference
GREDELL Engineering Resources, Inc. staff recently presented at the Missouri Waste Control Coalition Read More
Thomas Gredell Presents at Missouri Water & Wastewater Conference
Thomas R. Gredell, P.E., President of GREDELL Engineering Resources, Inc. presented a technical Read More
Ken Ewers Elected Vice-President of MWCC
Ken Ewers, R.G., of GREDELL Engineering Resources, Inc., Jefferson City, MO, was elected Read More
Gredell Engineering Wins Wears Creek Bank Stabilization Project
The State of Missouri has retained GREDELL Engineering Resources, Inc. (Gredell Engineering) to Read More
Gredell Attends Energy, Utility & Environment Conference
Thomas R. Gredell, P.E., President of GREDELL Engineering Resources, Inc., recently attended two Read More
Gredell Engineering Corecipient of the 25th Annual Carl V. Anderson Conservation Engineering Project Award
Natalie Little presents the Carl V. Anderson Engineering Project Award to the Missouri Department of Read More