BIOX® is a registered trademark of BMS, Inc.
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| Case Study | Industrial Facility | |
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| Tetrachloroethene | Madison, Wisconsin | |
| Click here for a printable (PDF) version of this document | ||
Site Overview
Project SpecificationsA site investigation at this location revealed elevated levels of tetrachloroethene (perc) in the subsurface soils to a depth of 10 feet. The cleanup criterion for this site was established as 1.0 mg/kg. Due to the number of subsurface utilities present at the site and the shallow nature of the contaminants, our patented Direct Injection Delivery System (DID System) was utilized to advance the probe rod into the subsurface by hand on a 3 foot injection matrix.
| • | Contaminant: | Tetrachloroethene |
| • | Contaminated Media: | Soil only |
| • | Treatment Area: | 3,240 square feet |
| • | Soil Type: | Stiff Clay - traces of fine silty sand |
Project Results
Prior to treating the site with BIOX®, soil samples were collected and analyzed as a baseline. With the exception of sampling location GP-9 which required three treatment events, the site specific cleanup objective of 1 mg/kg was achieved with a single treatment event within two months. The following table shows the analytical results in mg/kg.
Tetrachloroethene (mg/kg) |
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| Location | Baseline | 2 Months | 4 Months | 12 Months | Reduction |
| GP-9 | 6,440 | 753 | 35 | 0.52 | 100% |
| GP-15 | 5.54 | 0.66 | NA | NA | 88% |
| GP-18 | 6.12 | 0.11 | NA | NA | 98% |
| GP-102 | 4.00 | 0.53 | NA | NA | 87% |
The treatment
area has been submitted to the State agency
as no further action is required.
The published paper for this site is available upon request.
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