|
|
An employee-owned company
|
|
|
|
|
|
|
|
|
| |
Major Oil Company
Wellfield Investigation and
Remedial Planning
Santa Monica, California |
Served as lead consultant for a PRP group involved in responding to a joint RWQCB and EPA investigation and remediation program. The specific tasks involved developing a conceptual model for the distribution of MtBE in the basin, evaluating, commenting and refining a regional groundwater model, and the development of a conceptual approach for a focused remedial program to address the MtBE sources that contributed to the regional impacts. The project involved extensive negotiations with the EPA, RWQCB, and other PRPs. Based, in part on these efforts, our Clients were able to reach a favorable settlement and regional remedial planning is current underway. |
Major Oil Company
Free Product Characterization
Site Closure Strategy
Los Angeles, California |
A major oil company client owns a retail service station site in an old Los Angeles, California industrial area that reportedly had a minor release of gasoline that when assessed, appeared to be much larger, with an extensive free-product plume floating on the groundwater beyond the extent of characterization. In response to the initial discovery, free product recovery was immediately started. It soon became evident that the volume of product recovered was much greater than what could possibly have been released at the site. Samples of the product were forensically speciated and found to be jet fuel, a product never dispensed at the site. Subsequent investigations identified pipelines beneath the adjacent street including one that had been operated on behalf of the U.S. Air Force. Entities involved with operation of the identified pipelines declined to get involved with the project. Based on these findings, the client requested regulatory closure, which the state regulatory agency denied because they want the floating plume defined.
EnviroSolve formulated a closure strategy that directed that all historic and current data be included in a comprehensive report that presents detailed analyses of the data which demonstrate that the soil plume associated with the minor onsite release of gasoline never encountered the water table and that there is a 3- to 5-foot separation between the jet fuel and gasoline plumes. Based on this presentation the client is in the process of appealing the case and is confident that the gasoline related matter will be granted regulatory closure in the very near future. |
|
| |
|
|
 |
