Monthly update for Sellers Auto / Artist Studio petroleum cleanup site 489201547 / 489201548 (Thirtieth update- May 1, 2009)


Thank you for this latest update and for letting us know of potential changes to the Inland Trust Fund which might negatively affect the outcome of this project. It would be a real shame if the project is put on hold or worse. You and your team should be commended for your continued diligent efforts toward completing the remediation within project parameters, including well within the original estimated timeframe.

Please keep us informed as you learn more from the FDEP. Meanwhile, you have the continued appreciation from all of us in the Lake Formosa Neighborhood for keeping our citizens duly informed on activities throughout project duration.

Best regards,

Louise Mills
Secretary, LFNA Board of Directors

–Forwarded Message Attachment–
Subject: Monthly update for Sellers Auto / Artist Studio petroleum cleanup site 489201547 / 489201548 (Thirtieth update- May 1, 2009)
Date: Fri, 1 May 2009 09:23:34 -0400

May 1, 2009

Ms. Mills,

I would like to take this opportunity to give you our thirtieth monthly update on the project.

Some bad news. In a separate e-mail, I may be providing some information in the next few days or weeks on the state of the FDEP Preapproval Program which funds this site. Right now, there is a high chance that funding may be suspended with the score being raised and/or a complete shut down of the program. The House and Senate have been working out the details of what is to be done with Inland Protection Trust Fund, but it does not look promising at all. This means that funding will not be available to continue cleanup and the responsibility to continue would fall back to the property owner. This is not the official notice of this, but I wanted to let you know it is probably coming. Even if the program is shut down, I will continue to provide the updates until the end. We haven’t gotten official notice from FDEP about this, so as of the time I am writing this e-mail it is business as usual.

Report Status / General Status:

The system is currently running in the same configuration as the last several updates. The latest Operation and Maintenance Report states that multiphase extraction (MPE) 9,15,16,18,20,21,22,23,24 were shut down, thus only leaving up MPE-1,2,3,4,5,6,7,8,10,11,12,13,14,17 & 19 running. This portion of the existing points that are running (62%) is more than what is needed to treat our problem area, but the extra throughput is needed to match and balance the equipment. MPE treatment points MPE-3, MPE-4 and MPE-5 are being maximized for treatment around MW-5.

The system has recovered and treated about 10.5 million gallons of GW to date and with an average flow rate varying from 4.1 to 2.7 gallons per minute in the past year.

We currently have three reports in house from Argus.

* One of them is the pre-Remedial Action Plan modification Assessment (received 04/20/09), which was needed to get better delineation of our problem area around MW-5. The soil and GW were assessed in multiple ways using 14 direct sensing soil probes, 6 soil boring/temporary wells and finally 3 additional monitoring wells. During this work the air sparge pilot well was also installed.

It looks like the confirmed soil contamination extends as far as 45′ southwest of MW-5 and only 25′ directly south. This is based on the soil contamination found between 13′ to 17′ below land surface during three of the six soil boring/temp well installations.

Also, using MW-5 as a reference point, GW contamination is confirmed 45′ to the southwest and up to 70′ directly south. The most contaminated during the temporary well installations was TMW-6, which is only approximately 25′ directly south of MW-5 (approximately 15-17′ south of our nearest treatment point). The permanent well installed a few days later adjacent to TMW-6 is AW-28, which not surprisingly has contaminant levels similar to that of what we have been seeing in MW-5. However, we installed a permanent well to the south, AW-26, which we expected to be a clean perimeter well and this one was significantly more contaminated than MW-5. Existing well MW-3 is only 25′ away though and is below groundwater cleanup target levels. Argus recommends that further delineation may be needed to the south and to the east (I believe they mean west).

* The second report we are currently reviewing is the Pilot Test Plan (received 04/27/09). Once authorized, we should be able to perform the pilot test rather quickly and I will ask that we do that under a change order so that we won’t have to write a separate work order for it.

* The third report we have is the Year Four Quarter Four Operation and Maintenance Report (received 04/28/09). Though I haven’t completed my review on this one yet, so far it looks like the run time was pretty good and the report indicates that the most important treatment points are the ones that are being focused on, while we work towards enhancing the system to the south, southwest of MW-5. The groundwater data and milestone update for this report is the same one that was reported to you during my last update.

I anticipate I’ll have the review letters for each of these three reports within the next 3 weeks or sooner.

System Status:

There is no configuration change this period, but the most important treatment wells are MPE-3, MPE-4 and MPE-5 to treat the area around MW-5 and MPE-10,11 and 12 to treat around AW-7. AW-7 was below Groundwater cleanup levels last time and probably won’t need to be focused on much further.

Milestone Update:

The next milestone update should be available by June 1st or at about that time. I will send the next update on June 1, 2009. Please feel free to call me anytime if you need additional information or have any questions.

Thank you,

Damon Taylor, CFEA, LEP
Orange County Environmental Protection Division
Petroleum Cleanup Team
800 N. Mercy Drive, Suite 4, Orlando, FL 32808
Voice (407) 836-1480, Fax (407) 836-1417

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