Oxidation Reagent Injections in Zone GH

During the last week of February we proceeded to inject the second batch of the second round of the Zone GH. A total of 7.000 L of hydrogen peroxide with prewash 24 hours before were injected.

In order to evaluate the effectiveness of prior wash a water sampling was performed before and after of the washing solution injection. Increased concentration of dissolved TPH were expected.

A new feature in the methodology for analysis of COVs is tuned. It is a sealed cell connected at one end to the injection head and on the other portable photoionization detector (PID). The concentration of isobutylene, xylene, benzene, hexane and toluene was monitored in real time.

In all the boreholes on the site of La CLICA water table depth was measured.