Environmental
In Tennessee, a 'natural attenuation' remediation approach for a contaminated site means:
APhysically removing all contaminated soil
BRelying on natural processes (dilution, biodegradation, dispersion) to reduce contamination over time under monitored conditions✓ Correct
CInstalling artificial soil amendments
DCovering contaminated soil with clean fill without treatment
Explanation
Monitored natural attenuation relies on documented natural processes — including biodegradation, dilution, volatilization, and dispersion — to reduce contamination to acceptable levels over time under TDEC oversight.
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