Geological Survey Program
Environmental Assistance Unit
The Environmental Assistance Unit (EAU) provides geological and hydrological technical support to the general public, 
consultants, and other programs within the department. This support includes technical assistance to the public related to geologic hazards such as sinkhole collapse and landslides, the department’s Solid Waste Program in the characterization, permitting and monitoring of landfills in Missouri, and the performance of hydrogeological site evaluations for liquid and residential waste in support of the Water Protection Program.
Geological and Hydrological Site Evaluations for Liquid Waste Facilities
Liquid Waste – The EAU evaluates and determines the overall geologic and hydrologic limitations for proposed and existing liquid waste facilities. These systems include;
- Domestic Waste Lagoons
- Animal Waste Lagoons
- Municipal Wastewater Facilities
- Industrial and Process Facilities
- Land Application of Liquid Waste
- Subsurface distribution of Liquid Waste
- Large Scale Absorption (Cluster) Systems
Request for Geohydrologic Evaluation of Liquid-Waste Treatment Facility/Site, Form--MO 780-1688
Residential Housing Developments – The EAU evaluates the geologic and hydrologic limitations to established the density or lot size of individual onsite wastewater systems (septic tanks)
Provide Geological and Hydrological Technical Support
Solid Waste – The EAU provides regulatory oversight and technical support in determining the geologic and hydrologic characteristics of proposed solid waste
facilities. Additionally, the EAU assist in the design and implementation of groundwater monitoring programs at approved facilities
Request for Preliminary Investigation of Proposed Solid-Waste Disposal Area, Form--MO 780-1689.
Liquid Waste – The EAU provides technical support in determining the geologic and hydrologic characteristics of liquid waste facilities and assist in the design and implementation of groundwater monitoring programs
Geologic Hazards – The EAU provides technical assistance to the citizen of Missouri in evaluating the causes and repercussions of sinkhole and landslide development