ECONOMICS AND VALUATION OF BIOAUGMENTATION - Bioaugmentation for Groundwater Remediation - page 325

typically less than 3% of total lifecycle costs for an EISB remedy and 6-8% of the initial
injection costs.
The key factors affecting the incremental cost of bioaugmentation include:

Whether a separate mobilization is required to bioaugment, or whether bioaugmenta-
tion can be done at the same time as electron donor additions;

Whether complete degradation must be occurring throughout the target treatment
volume immediately after bioaugmentation, or whether there is time available for the
introduced microbes to grow, disperse and colonize the subsurface;

Whether EISB is used for source treatment or as a reactive barrier;

Site conditions that affect organism growth and survival (e.g., pH, ORP or presence of
cocontaminants); and
Any site conditions that impact the ability to deliver the inoculum (e.g., depth,
heterogeneity or permeability).

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