Information for South Dakota
The Guidelines for Contamination Reduction provide proven practices to use during cleanup of a meth lab. The South Dakota does not evaluate, certify or license cleanup contractors however they do provide a list of companies on their website. Post testing is recommended and the preferred level is 0.1ug/100cm².
Regulations:
South Dakota Department of Environment & Natural Resources
523 E Capitol, Pierre SD 57501
605-773-3296
http://denr.sd.gov/des/wm/hw/hwmeth.aspx
The DEA has kept a catalog of properties since 2004 across the nation of locations of clandestine meth lab busts completed by their department, check to see if your property is on their list:
http://www.justice.gov/dea/clan-lab/index.shtml
EPA Voluntary Guidelines for Methamphetamine Laboratory Cleanup
http://www2.epa.gov/sites/production/files/documents/meth_lab_guidelines.pdf