What is monitored natural attenuation?

What is monitored natural attenuation?

Monitored natural attenuation (MNA) is an in situ remediation technology that relies on naturally occurring and demonstrable processes in soil and groundwater which reduce the mass and concentration of the contaminants.

What are natural attenuation parameters?

The Environmental Protection Agency (EPA) defines natural attenuation as “a variety of physical, chemical, or biological processes that, under favorable conditions, act without human intervention to reduce the mass, toxicity, mobility, volume, or concentration of contaminants in soil or groundwater.

What is natural attenuation?

Natural attenuation relies on natural processes to decrease or “attenuate” concentrations of contaminants in soil and groundwater. Scientists monitor these conditions to make sure natural attenuation is working.

What is enhanced natural attenuation?

• Enhanced Attenuation (EA) is a plume remediation strategy to achieve groundwater. restoration goals by providing a “bridge” between source zone treatment and MNA and/or between MNA and slightly more aggressive methods.

What is the definition of monitored natural attenuation?


What does MNA stand for in ground water remediation?

The term MNA refers to the reliance on natural attenuation processes to achieve the applicable ground water remediation standard.

Where can I find NJDEP technical guidance documents?

To view the Department’s policy for varying from a rule and applying technical guidance, click here. The Technical Guidance Documents contained in this section were developed by the NJDEP prior to enactment of SRRA, and without extensive Stakeholder input/review.

What are the technical rules for site remediation in NJ?

1 INTENDED USE OF GUIDANCE DOCUMENT This technical guidance is designed to help the person responsible for conducting remediation to comply with the State of New Jersey Department of Environmental Protection (NJDEP or Department) requirements established by the Technical Requirements for Site Remediation (Technical Rules), N.J.A.C. 7:26E.