NWETC's sampling courses are designed to provide valuable information and hands-on, practical experience in the field sampling of environmental media.  These media include soil and other solids; surface and groundwater; sediment; indoor and ambient air; solid and hazardous waste; and chemicals of commerce.  These courses are intended for those engaged in the collection and preparation of field samples for analysis, or those who want to gain a deeper understanding about correct sampling procedures as established by EPA and other regulatory and standards organizations.