The Division of Environmental Response and Revitalization (DERR) Geologist Group provides support for geologic and ground water issues related to the investigation and cleanup of contaminated sites, including:
- Resource Conservation and Recovery Act (RCRA) Subtitle C facility corrective actions and closures
- Comprehensive Environmental, Response, Compensation and Liability Act (CERCLA or Superfund) sites and federal facilities
- State-lead remedial response sites, properties regulated under Ohio’s Voluntary Action Program (VAP) and brownfield properties
The DERR Geologist Group advances Ohio EPA’s mission to protect human health and the environment through the development of regulatory and technical guidance that facilitates the investigation, regulation and remediation of chemical and petroleum hazards in ground water, soil and other environmental media.
The DERR Geologist Group maintains Ohio EPA’s Technical Guidance Manual (TGM) for Hydrogeologic Investigations and Ground Water Monitoring. The TGM is an agency-wide guidance document that provides technical recommendations for regulatory issues involving geologic and ground water concerns at potential or known pollution sources. The TGM promotes consistency across Ohio EPA’s various regulatory programs and informs the regulated community of the Agency’s technical recommendations and their scientific bases.
The following Ohio EPA divisions share and support the TGM: DERR, the Division of Material and Waste Management (DMWM), the Division of Drinking and Ground Waters (DDAGW), the Division of Surface Water (DSW) and the Division of Environmental and Financial Assistance (DEFA). In Ohio, the authority over pollution sources that impact land and water is shared among these Ohio EPA divisions as well as other state and local agencies, including but not limited to the Ohio Department of Natural Resources (ODNR), the Ohio Department of Health (ODH) and local health departments.