20.4.5.17

CLEARANCE LEVELS FOR RESIDUAL CONTAMINATION. At a minimum, the remediation firm shall conduct sampling and testing for all of the constituents listed below unless evidence indicates that such constituents were not used in the operation of the clandestine drug laboratory. All interior areas of the residually contaminated portion of a property that will be occupied by people for any length of time for any purpose and all furnishings and materials intended for reuse shall meet the following post-remediation clearance levels.

Constituent Clearance Level Unlawfully manufactured controlled substance or its precursor drugs Surface area wipe <1.0 μg/ft² Volatile organic compounds (total) Indoor air ≤ 1 part per million Lead (total) Surface area wipe ≤ 40 μg/ft² Mercury (vapor) Indoor air < 0.3 μg/m³ Corrosives Surface pH of 6.0 to 8.0

Constituent

Clearance Level

Unlawfully manufactured controlled substance or its precursor drugs

Surface area wipe <1.0 μg/ft²

Volatile organic compounds (total)

Indoor air ≤ 1 part per million

Lead (total)

Surface area wipe ≤ 40 μg/ft²

Mercury (vapor)

Indoor air < 0.3 μg/m³

Corrosives

Surface pH of 6.0 to 8.0

[20.4.5.17 NMAC - N, 1/01/2008]