ERCS Contractor

Since 2001, GSI has been serving as a state contractor for the Nebraska Department of Environmental Quality Petroleum Remediation Section as an Emergency Response Clean-up Service (ERCS) contractor for orphaned underground storage tanks. This program is designed to use Risk Based Corrective Action to close sites, investigate and or remediate underground storage tank sites whose responsible parties are no longer solvent or can not be identified.

Since 1990, GSI has been recognized as a leader in the underground storage tank remediation arena. GSI has extensive understanding of the protocols of the state, has the expertise and capacity to sample soil and ground water, provide remediation recommendations and build/operate/maintain remediation systems. Since 2003, under the ERCS Contract, GSI has completed 42 Tier 1 Investigations, 15 Tier 2 Investigations and completed one Remedial Action Plan.

GSI has participated in special studies to assist the state in statistical research, forensic work and quality control investigations. At the direction of the state, GSI collected groundwater samples, which were analyzed for an extended list of chemical of concern. These included compounds used as oxygenates in motor fuel. GSI also investigated the work of a suspicious tank puller to verify the quality of work and appropriateness of clean closures.