Environmental

Oklahoma has areas of naturally occurring radioactive material (NORM) contamination related to:

ANuclear power plant waste
BHistoric oil field operations where NORM-contaminated scale and sludge were deposited✓ Correct
CMilitary base contamination
DAgricultural pesticide residue

Explanation

Naturally occurring radioactive material (NORM) in Oklahoma is associated with oil and gas production. Radioactive scale and sludge produced during oil field operations can contaminate well sites, equipment, and soil, requiring specialized cleanup.

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