In most cases where methamphetamine levels exceed 0.5 micrograms per 100 square centimeters, all porous materials will need to be removed as they can not effectively be decontaminated. Other nonporous items may or may not be able to be decontaminated. Following is a brief guide as to removal of contaminated materials and hazardous waste disposal.
The first thing is to test. Proper methamphetamine testing is the only way to know for sure if the property is contaminated.