partially caused by the application itself, which has a significant impact on the actual
dynamics of the groundwater; it could also be caused by the release of contaminants
temporarily caught in the unsaturated zone. The continual increase in the CHC
contamination in well B149 for 75 days after the nZVI application can be caused
by the combination of the above-mentioned factors or it could also be the result of an
inflow of new contamination from an area further upstream of RB. Due to the lack of
monitoring wells further upstream of RB, this claim is difficult either to prove or
refute.
Fig. 6.7 Results of redox potential and dissolved oxygen measurements
Fig. 6.8 CHC concentrations in B149 – inflow into RB
112
V. Stejskal et al.
dynamics of the groundwater; it could also be caused by the release of contaminants
temporarily caught in the unsaturated zone. The continual increase in the CHC
contamination in well B149 for 75 days after the nZVI application can be caused
by the combination of the above-mentioned factors or it could also be the result of an
inflow of new contamination from an area further upstream of RB. Due to the lack of
monitoring wells further upstream of RB, this claim is difficult either to prove or
refute.
Fig. 6.7 Results of redox potential and dissolved oxygen measurements
Fig. 6.8 CHC concentrations in B149 – inflow into RB
112
V. Stejskal et al.