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Other Environmental Projects:
    • Fairbanks FDOT Project
    • STOLLER – DOE STAR Center
    • NASA – Kennedy Space Center
    • Northrop Grumman – Georgia
    • Tampa Electric Company
    • LM Missiles
    • City of Ocala
    • Florida-based Engineering Co.

Related Links:
    • Water Resources
    • Civil / Land Development

Northrop Grumman – Georgia
HSW’s work at the former Northrop Grumman facility has involved on site restoration and environmental compliance utilizing innovative/sophisticated strategies in site assessment and regulatory negotiation. HSW has been responsible for assisting Northrop Grumman in their regulatory compliance activities under RCRA, UIC, NPDES, and industrial wastewater treatment and discharge to the local POTW. Moreover, Northrop Grumman continues to retain HSW at this and other facilities in other states, in a large part due to our innovative, streamlined approaches that have resulted in cost avoidance for the Milledgeville facility exceeding $500,000. The cost avoidance / streamlining measures included: negotiating a flexible Consent Agreement rather than a prescriptive RCRA permit or order; consolidating SWMUs for investigation / applying corrective measures; minimizing the generation, characterization, and disposal of IDW; applying the source of contamination presumption for managing contaminated media; identifying an upgradient source of contamination, and continually reviewing and introducing cost avoidance measures under the ongoing water quality monitoring program.

Human health and ecological risk assessment and hydrologic modeling played important roles in HSW’s development and ranking of remedial options. These tools, as well as detailed cost analyses of various alternatives, were used to focus remedial actions on areas where they were most needed based on current land uses and existing human health and ecological receptors. Management and disposal costs were minimized by applying sophisticated RCRA regulatory interpretations and guidance that allowed the affected media to be handled as non-hazardous waste. Bench scale testing of two technologies (in-situ chemical oxidation and enhanced in-situ bioremediation) indicated that bioaugmentation would be effective in reducing the VOC concentrations in a suspected source area, whereas long-term monitoring may prove more cost-effective for areas of lower concentration in the shallow groundwater. A bioaugmentation pilot study is currently in progress and should be completed in mid-2005.