Penn E&R was contracted to complete two phases of an in-situ bioremediation program at a former industrial facility in northeastern New Jersey. The scope of work involved the drilling, installation and development of 13 monitoring and injection wells followed by the completion of an in-situ bioremediation pilot injection testing program at the site. This pilot test program used a sodium bromide tracer to assess the solute velocity and radius of influence through the subsurface for subsequent full-scale injections.
KEY PROJECT FEATURES:
- Drilling and installation of 13 injection wells completed
- Well boring lithology logged using the Unified Soil Classification System
- Surge block and pumping techniques used to properly develop wells
- Pre-injection sampling of injection wells using low flow ground water sampling methods
- Injection of quick-release substrate (EOS® QR) to provide immediate highly biodegradable carbon and nutrient sources for microbes
- Injection of slow-release substrate (EOS® Pro) to provide long-term carbon and nutrient resources for microbes
- Data collected from injection wells used to determine if the aquifer was geochemically suitable for introduction of BAC-9 bacteria
- Bioaugmentation with BAC-9 bacteria
- Data collection during injection activities including temperature, pH, dissolved oxygen and specific conductivity
- Post-injection data analysis and reporting