Client: Gayston Corporation
Project: Soil Vapor Extraction, Air and Ozone Sparging System
Location: Dayton, Ohio
Contract Value: $219,000

Description: A.S.T. performed all design, construction, and installation services for a soil vapor extraction/air sparging (SVE/AS) system to remove volatile organic contamination in soils and groundwater. This SVE/AS system included one horizontal and six vertical extraction wells and four air sparging wells. A.S.T. performed initial testing and start-up of the system. We were also awarded a contract for the monthly operation, maintenance, and monitoring of the system. A.S.T. performed the weekly and monthly emissions sampling, in addition to the quarterly groundwater sampling at this site.

A.S.T. also constructed and installed two ozone injection systems. The system utilizes six ozone injection wells (three with each system) and three monitoring wells. A.S.T. excavated trenches and installed PVC conduit to house all air supply and electrical lines, mounted each unit, connected all lines and installed each well assembly. We also programmed each unit and performed initial testing and start-up of the systems. A.S.T. continues to perform groundwater sampling from the monitoring wells for this on-going project.

Description: A.S.T. developed and installed the system for chemical injection of potassium permanganate to chemically oxidize solvent contamination at this industrial site. Approximately 30 injection points were initially installed as part of a pilot test. Results indicated excellent (80 -95%) reduction of solvent levels at every sampling location. A full-scale system was subsequently installed utilizing a total of 310 injection points

For more information about these and other projects, please Contact A.S.T.