Table 1.

Mass balance of BTEX in centrifuge tests ([15], with permission from ASCE).

Contaminants	Migration for 1 year	SVE for 2 months	SVE for 4 months
Benzene	46%	13%	9%
Toluene	88%	53%	32%
Ethylbenzene	90%	64%	41%
o-Xylene	100%	58%	36%
Total BTEX	88%	53%	32%