Monitored natural attenuation definition
Monitored natural attenuation means representative groundwater monitoring of the natural attenuation of each substance in a groundwater plume to a concentration equal to or less than groundwater criteria, provided such monitoring demonstrates that:
Monitored natural attenuation means the reliance on natural attenuation processes, within the context of a carefully controlled and monitored site cleanup approach, to achieve site-specific remediation objectives within a time-frame that is reasonable compared to that offered by other more active methods.
Monitored natural attenuation means a methodology for remediation that relies upon a variety of naturally occurring chemical, physical and biological processes to achieve target concentrations in a manner that is equally as protective of public health, safety and welfare, and the environment as other methods, and that is accompanied by a program of monitoring to document the progress and results of the above-mentioned processes.
Examples of Monitored natural attenuation in a sentence
Monitored natural attenuation as a stand- alone remediation approach is therefore not considered viable for this site.
Monitored natural attenuation as a stand-alone remediation approach is therefore not considered viable for this site.
Savannah River National Laboratory, Aiken SC ▇▇▇▇▇▇▇▇ I, ▇▇▇▇▇▇▇▇ V, ▇▇▇▇▇▇ Y (2012) Monitored natural attenuation (MNA) of contaminated soils: State of the art in Europe—a critical evaluation.
Monitored natural attenuation has been explored as an option to continued pumping and treating.
Monitored natural attenuation requires that monitoring be conducted throughout the period of remediation to confirm that the natural processes are continuing to be effective.
More Definitions of Monitored natural attenuation
Monitored natural attenuation means an approach to the reduction in the concentration of chemicals of concern in environmental media due to naturally occurring physical, chemical, and biological processes.
Monitored natural attenuation. [MNA] means the use of natural attenuation processes in a carefully controlled and monitored approach to site remediation.
Monitored natural attenuation means a remediation process that monitors the natural or enhanced attenuation process.
Monitored natural attenuation or “MNA” means the collection of samples on an annual or semiannual basis from monitoring wells associated with SWMUs and AOCs. The purpose of MNA is to demonstrate that contaminant concentrations are decreasing due to one or more natural processes in the subsurface. If MNA shows no decreases in contaminant concentrations or that they are increasing, the Secretary may evaluate whether changes to the corrective measure or a new corrective measure is necessary.
Monitored natural attenuation means the reliance on natural attenuation processes, within the context of a carefully con- trolled and monitored site cleanup approach, to achieve site- specific remediation objectives within a time-frame that is rea- sonable compared to that offered by other more active meth- ods.
Monitored natural attenuation means an approach to the reduction in the concentration of chemicals of concern in environmental media due to naturally occurring physical, chemical and biological processes. processes, which is based on best available scientific information.
Monitored natural attenuation means a verifiable approach to the reduction in the concentration of chemicals of concern in environmental media due to naturally