Bioremediation through bioaugmentation achieves immediate results at the point of injection. In most cases, the monitoring points are distant from the injection points. The speed of remediation depends on the rate of microbial dispersion from the injection point.
The following chart shows the speed of bioremediation at two monitoring points. Three months after the initial bioaugmentation, the total BTEX concentration decreased more than 99% in one well and 77% in the other well. Two months after the second bioaugmentation, the concentration in both monitoring wells was below detection limits.