From: Damon.Taylor@ocfl.net [mailto:Damon.Taylor@ocfl.net] Sent: Monday, December 03, 2007 3:19 PMTo: Mills, Louise OA1J1Cc: firstname.lastname@example.org; JRWebster@r-kidproperties.com; Renee.Parker@ocfl.net; Carlos.Gonzalez2@ocfl.netSubject: Monthly update for Sellers Auto / Artist Studio petroleum cleanup site 489201547 / 489201548 (Fourteenth update- December 3, 2007)Importance: High
I would like to take this opportunity to give you our Fourteenth monthly update on the project. The startup occurred in late February 2007, so we are approaching the one year mark of our scheduled 4-year cleanup schedule. This update is very brief as not very much has changed since our last one. I put the most important items in bold print below.
The Vapor Extraction System:
There were two problems mentioned in our last update with the oxidizer that were indeed addressed since then. These were:a) the motor that came with the oxidizer was in bad shape and was replaced. This also helped with the next item.b) the noise from the oxidizer was excessive when they started it up. The replacement of the motor mentioned above helped this tremendously.I don’t have a report that details a span of time since the oxidizer was installed, but I believe the oxidizer (installed right before our last update) has only run a minimal amount of time since being installed. A minor amount of down time is accountable due to the propane running out and being refilled. The propane was replenished once. I saw when I went there to check on it this afternoon that it was not running. I don’t know why this is the case.Again, I don’t know why this part of the system is down. I do know that when it does go down that that it cannot be re-started remotely. The onus is on Terramax to respond to system shutdowns or malfunctions within 3 business days of discovery in accordance with the Remedial Action Initiative. The County will have to issue the appropriate non-compliance letter as it looks like this requirement has not been met since the oxidizer was put in place. Although the oxidizer was not part of the original design, it’s operation is imperative to the operation of the vapor extraction system. I recommend that Terramax have someone closely watch the equipment to restart (respond) as necessary.
The Groundwater Recovery System:
This portion is also not running. Terramax informed me they are having a problem with the compressor that pneumatically drives the subsurface pumps. Terramax was going to get the manufacturer to service it to fix the alarm mode that was being indicated on the compressor. I haven’t heard that this was done. Likewise as with the Vapor extraction system, I recommend that Terramax get the compressor fixed and have someone closely watch the equipment to restart (respond) as necessary so this portion of the system may operate in accordance with the RAI.As stated in a past update, we had concerns that we weren’t able to accurately evaluate the recovery rate from each well and were only getting the total flows. The FDEP has funded from Terramax and the manufacturer with cost to put on individual flow meters on the wells in place of the existing air flow pulse measurement devices. These haven’t been installed yet, but Terramax attempted to do so since our last update and found they need bushings/couplings to do so. Orange County/FDEP is approving this today, so it should be done before the next update. These individual flowmeters aren’t necessary to make the system run, but we need them to better hone in on how each well is performing individually.
The Biosparge System:
Orange County / FDEP has concurred that due to the compressor capacity when it is running and the decreased concentrations by the lake, that this portion of the system is no longer necessary. It can be turned back on later if necessary, but the compressor should be focused on pneumatically operating the MPE recovery wells instead.
We are currently working on getting our review letter out for the Third Quarterly Operation & Maintenance Report, (dated 10/10/07), and a First Quarter Response to Comments (dated 10/02/07). I also have a Catalytic Oxidizer Startup report which documents the installation and setup of the oxidizer. We are working on getting a cost proposal approved to fund work for next year (to begin in January 2008) and are running out of time to do so. Terrmax’s insurance has expired and the FDEP does not allow work orders to be approved until they are fully qualified (auto, general, workers comp, etc).
The last set of updated data was from the August 2007 groundwater sampling event. New data should be available in our January 1st 2008 update.Please feel free to call me anytime if you need additional information or if you would like me to find something in our files. Also. I am always available to meet you onsite if you want to discuss the site in detail.
Damon Taylor, CFEA, LEP
Orange County Environmental Protection Division
800 N. Mercy Drive, Suite 4, Orlando, FL 32808
Main (407) 836-1400 Direct (407) 836-1480 Fax (407) 836-1417