Field-Scale Treatability Study for Enhanced In Situ Bioremediation of Explosives in Groundwater: BioBarrier Installation and Hot Spot Treatment Using DPT Injection
Abstract
West Virginia Ordnance Works (WVOW) was a TNT manufacturing facility from 1942-1945. The WVOW site is located on the east bank of the Ohio River, six miles north of Point Pleasant, WV. WVOW included 12 TNT production lines. TNT production resulted in soil and groundwater contamination. Complete decontamination was not achieved, so portions were transferred to the state of West Virginia for use as a wildlife management reserve. The site is now the McClintic Wildlife Management Area. Four study areas: Seep Area, SE Hot Spot 1, SE Hot Spot 2, and SE Hot Spot 3. Primary chemicals of concern (COCs) include: 2,4,6- Trinitrotoluene (TNT), 2,4-Dinitrotoluene (2,4-DNT), 2,6- DNT, 2-Amino-4,6-DNT (2ADNT), and 4-Amino-2,6-DNT (4ADNT). Enhanced in situ bioremediation (EISB) was selected for field-scale evaluation. Three different carbon sources are being compared for their effectiveness: SRS (Trademark) Emulsified Vegetable Oil (Terra Systems, Inc.), HRC-X (Trademark) (Regenesis), and LactOil (Trademark) (JRW). The study is focused only on groundwater treatment. Soil Retention Tests were performed to confirm adequate injection solution concentration. Slug tests were performed to determine hydraulic conductivity and groundwater flow rate. Baseline sampling was performed prior to injection of the carbon source in the study areas. Nine wells and four seep locations were sampled. Performance sampling was conducted quarterly after injection. Sampling will continue on a quarterly basis for the first year followed by semi-annual sampling for a second year. A comprehensive evaluation report will be prepared at the conclusion of the study.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 2011
- Accession Number
- ADA565675
Entities
People
- Richard Meadows
- Steven T. Downey
- Xihong Zhai