A proprietary injectable amendment designed to treat petroleum hydrocarbons in groundwater and soil through sorption and biodegradation.
How It Works
BOS 200® is a complete system effecting accelerated biodegradation of various organic compounds on an activated carbon platform that includes micro and macro nutrients, time release terminal electron acceptors, and a blend of facultative organisms designed to flourish within the aerobic to anaerobic conditions present in the pore structure of the carbon. It has been demonstrated to be effective with LNAPL, fuel oxygenates, alcohols, glycols, and cyclic ethers. No toxic byproducts such as sulfide are produced. The product is insensitive to groundwater geochemistry and is effective under aerobic and anaerobic conditions and over a broad range of pH. High salinity and TDS of 30,000 ppm are also not detrimental to performance.
Mechanism:
- Sorption: High-surface-area carbon adsorbs hydrocarbons on contact, significantly reducing dissolved-phase mass.
- Biodegradation Support: BOS 200 includes a proprietary blend of micro and macro nutrients, time release terminal electron acceptors, and facultative organisms
- Sustained Remediation: Combines immediate mass reduction with long-term biological activity for continued performance after injection.
BOS 200 is highly effective even in coarse-grained soils and can be injected into smear zones, residual LNAPL areas, and dissolved groundwater plumes.
Common applications:
- BTEX, LNAPL, and TPH plumes
- Residual smear zones
- Fuel depot or UST releases
- MNA supplement or post-excavation polishing
Typical site types:
- Gas stations
- Refineries and terminals
- Rail yards and logistics hubs
- Military fueling areas
- Airports
- Emergency spill response sites
Performance Results



Product Comparison
| Feature / Spec | BOS 100® | CAT 100® | BOS 200® | BOS 200+® |
|---|---|---|---|---|
| Target Contaminants | Chlorinated solvents (TCE, PCE, DCE, VC) | CVOCs, DNAPL, mixed chlorinated solvent mass | Petroleum hydrocarbons (BTEX, TPH, LNAPL) | Complex PHC sites: LNAPL, MTBE, glycols, etc. |
| Ideal Use Cases | CVOC dissolved groundwater plumes, low-high perm zones, permeable reactive barriers (PRB) | DNAPL source zones, high-mass CVOC, mixed plumes | BTEX/LNAPL plumes, blend into backfill of excavation | LNAPL source zones, high-mass VOC, PRBs |
| Treatment Mechanism | Adsorption + abiotic reductive dechlorination (ZVI) | Adsorption + catalytic degradation + engineered bio | Adsorption + aerobic biodegradation | Adsorption + enhanced bio (aerobic & anaerobic) |
| Activated Carbon Type | Granular AC impregnated with reactive iron | Granular AC impregnated with reactive iron | Powdered activated carbon | Granular AC impregnated with reactive iron |
| Biological Degradation Component | No | Yes | Yes | Yes |
| Delivery Methods | Direct push, trench, soil mix, packer, GeoTAP | Direct push, trench, soil mix, packer, GeoTAP | Direct push, trench, soil mix, packer, GeoTAP | Direct push, trench, soil mix, packer, GeoTAP |
| Year Released | 2004 | 2016 | 2002 | 2016 |
| Projects Completed | 100+ | 50+ | 1000+ | 200+ |