Guidance on Meth Lab Cleanup: Summary
http://www.health.state.mn.us/divs/eh/meth/lab/guidance0407.pdf

• Does not use a "standard" level for meth cleanup
• Relies on a remediation process rather than achievement of a number that is not
  science-based.
  
• Reasons:
  
  • There is no solid research available on:
    
    • Impact of human health from exposures within a methcontaminated
      structure
      
    • Absorption of skin or distribution of meth throughout the body.
      
    • Levels in meth in air of former meth labs that may be harmful
      
    • An established safe level for meth in the environment.
      
  • A zero meth level will provide the lowest risk to occupants of a former
    meth lab.
    
  • Research has shown that sampling for meth is not a reliable measure of
    the entire volume of meth in a structure.
    
• This process reduces risk by reducing exposure to contamination through a
  combination of disposal, remediation, and encapsulation activities.
  
• Does not want to set a standard that is unachievable or will cost a lot to achieve
  without knowing the benefits
  
• This remediation process allows the local authority to:
  
  • Allow cleaning and salvage of items and materials that will not be
    readily available to children and that would otherwise have to be
    discarded
    
  • Distinguish between heavily-contaminated smoke labs or those that have
    been peripherally contaminated or just used for smoking
    
  • Allow for differences in the use of structure
    
  • Allow other special circumstances in the limit of practice.
    
• Gives guidance on what to keep, what to throw out, and the ways to go about it. A lot of it is recommended, some of it is mandatory. It all depends on the use of
  the item, the amount of contamination, etc.
  
• Ohio follows the Minnesota guidelines.

Minnesota Guidance on Meth Lab Clean Up (pdf version)