| While the quality of surface waters has dramatically improved over the last several decades under the Clean Water Act, regulators have only recently begun to address the legacy of contaminated sediments left behind in our lakes and rivers. The Great Lakes Legacy Act of 2002, which authorized $270 million over five years, is but one example of our national commitment toward cleaning up contaminated sediments.
Scientifically sound assessment and management tools are critical to balancing cost control with agency-accepted solutions. Natural Resource Technology has assisted clients in developing technically-defensible sampling, assessment and management strategies to address contaminated sediment issues. Our sediment experience includes:
- Evaluation of historical source inputs
- Field reconnaissance and stream/river morphology surveys
- Sediment quality characterization studies
- Various sampling techniques including Ponar™, coring, drilling and Vibracore methods
- Development of site conceptual models
- Data management, interpretation and statistical evaluations
- Agency negotiations and management strategy development
- Risk assessments
- Remedial design for dredging, treatment/disposal and capping technologies
- Engineering cost development and comparisons for sediment management options
- Contractor procurement
- Remedial oversight and documentation
- Obtaining state and federal funding assistance
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