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TECHNICAL FAQ
>> What macronutrient levels are recommended for aerobic bioremediation?

>> How deep should I install the injection points?

>> The ground water contaminant concentrations increased after the injection. What happened?

>> Should I check for naturally occurring bacteria prior to using Cl-out or Petrox?

>> How can I determine whether the naturally occurring bacteria at the site can be stimulated to degrade the chemicals of concern?

>>If I have used potassium permanganate to treat ground water, can I follow up with CL-Out or Petrox microbes to treat residual contamination?

>>Are Cl-Out and Petrox compatible with ORC®?
Q> How deep should I install the injection points?

A> For soil and ground water treatment the injection points should be set with the screened interval at the same elevation as the target contamination zone. Please remember that in ground water, most of the injected microbial solution will be injected at the top of the screened interval. This is because the water pressure in the aquifer around the well screen increases with the depth. For soil injection, you should also consider the downward gravity drainage once the solution enters the soil around the well screen.

With LNAPL, you should also consider that there may be a "smear zone" in the soil above a fluctuating water table. If you have a smear zone, your well screen should be set at the same elevation as the smear zone.





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