July 1, 2011
I would like to take this opportunity to give you our fifty-sixth monthly update on the project.
There have not been any major changes with the operational strategy or sampling plan for the site in several months. Yesterday, Argus performed the annual sampling event. I expect in two weeks, we will have new groundwater data to share. The next report is the annual one, which is due on July 12, 2011.
A professional recommendation to turn the system off and enter monitoring or to continue to operate the system for another quarterly period will be in this report.
System Runtime & Performance:
We have received no notices of downtime lately. All air sparging wells are showing high flow rates as designed. Three of the multiphase treatment well network of 26 (originally 24) are turned off. In other words, there are only 23 vapor recovery wells being used to capture vapors. Only the ones in the area of the contamination are being used to recover groundwater. The target area is still the isolated area around monitoring wells MW-5, AW-10 & AW-28. Surprisingly, with the heavy rain events we have been getting the infiltration gallery has continued to perform well.
As stated above, the Year Four Quarter Four report is due on July 12, 2011. This one will include a milestone evaluation and a professional recommendation for the next course of action. I recently created a new work order to run the system for 90 days after this period, just in case it is needed. However, it is possible this report may have a recommendation to turn the system off.
There isn’t a new milestone evaluation for this update. In the past one, we had all wells having met milestones for the first time. The site showed the lowest levels of contamination yet at that time – the groundwater sampling event of March 2011.
I will not be able to submit the update on August 1st because I will be out of town, but I will send it on August 2nd 2011. However, I will likely contact you in the middle of the month with the new data before the monthly report.
I hope you have a great Fourth of July weekend. Please feel free to call me anytime if you need additional information or have any questions.
Environmental Case Manager
Environmental Protection Division
800 Mercy Drive, Suite 4
Orlando, FL 32808