MUN	Municipal (incorporated).  Includes water supply or wastewater treatment facilities
IND	Industrial facility
CMBMI	Combined "MUN" and "IND"
AGRI	Agricultural site.  Includes raw crops, feedlots, grazing, and silviculture (forestry)
DOMEST	Domestic (residential) domicile or facility.  Includes water supplies and on-lot septic systems for private dwellings
DISPOS	Waste (solid or liquid) disposal site
ABANDN	The site from which samples are gathered is abandoned
