Prairie State Energy Campus worksite

Prairie State Energy Campus CCR Landfill

Location: Marissa, Illinois

Client: Prairie State Generating Company, LLC

Services: Environmental


The Prairie State Energy Campus is a coal-fired power plant near Marissa, Illinois. The campus generates electricity for more than 1.5 million Midwest families. It creates more than 450 permanent jobs and injects $100 million into the regional economy. The campus includes an underground coal mine with the 1,600-megawatt power plant.

Prairie State Energy Campus Project Background

Geotechnology was selected to conduct a hydrogeologic investigation to support the design and permitting of a new 500 acre landfill for coal combustion residuals. The project team conducted a subsurface exploration to establish stratigraphy and groundwater conditions. Various tasks included continuous soil sampling, rock coring and packer testing. We also oversaw piezometer installation and groundwater monitoring.

Additionally, Geotechnology continues to provide groundwater monitoring and assessment services. We monitor well installation and abandonment services as well as leachate and surface water sampling and testing.

Geotechnology’s team of geologists, engineers and drill crews continue to provide the resources needed to complete projects on schedule. Our responsiveness and dedication to quality is a key contributor to our ongoing relationship with Prairie State.