Andy Rezendes, Alpha Analytical Labs

www.alphalab.comPost – Sampling, when am I done?• Ambient air samples –should have some vacuum left incanister (i.e. 5 in. Hg) – more critical if not• Soil vapor samples –should have some vacuum left incanister (i.e. 5 in. Hg) – less critical if not• Grab samples – final vacuum not critical, can go to 0 in.Hg• Greater than 15 in. Hg – may be a need for dilution