Monthly update for Sellers Auto / Artist Studio petroleum cleanup site 489201547 / 489201548 (eleventh update- September 13, 2007)

From: []
Sent: Thursday, September 13, 2007 4:19 PM
To: Mills, Louise P21324
Subject: Monthly update for Sellers Auto / Artist Studio petroleum cleanup site 489201547 / 489201548 (eleventh update- September 13, 2007)
Ms. Mills,
I would like to take this opportunity to give you our eleventh monthly update on the project. I am about 13 days late on sending this because I was on vacation since late August, as I mentioned in my last update. Since my last update, we’ve been experiencing problems with the remediation system processes. I am including a summary from the consultant as an attachment to this email to help clarify what these recent issues are.

Vapor Recovery System Update:
This part of the system that is still down due to the need to use a catalytic oxidizer. This oxidizer cannot be used until full fiscal approval to implement the Remedial Action Plan Modification. Terramax is working on the logistics of using propane vs. natural gas. The first version of the change order request (for $34,946) was dated July 9th and wasn’t approvable. Unfortunately we are still not there after all of this time. I will meet with our engineer, Mr. David Jones to get his guidance on how to speed up the process. I still need to issue the approval order to FDEP, but that will not delay getting the change order from being corrected. Once there is full engineering and fiscal approval, it should move quickly.

The Groundwater Recovery System Update:
Apparently, some of the failsafe shutoffs and noise problems are related to a low groundwater recovery rate. Terramax says that the low water table is causing us to have lower rates which has caused the air stripper to suck air and cause excessive noise. I think Terramax’s attached email (comment #1) addresses this. Optimum use of the existing programmable logic controller is the best way to prevent problems like this.

Since the groundwater recovery is done pneumatically at this site, temperature problems with the air compressor is another potential problem in keeping the groundwater recovery system running. The recent email from Terramax was the first time that we experienced this. Addressing the temperature issues isn’t a insurmountable problem though. Proper use of the existing fan and perhaps adding another ventilation hole would be enough.

The Biosparge Wells by the lake Update: These are still functioning as long as the compressor is operating.

Report Status: The Startup Report and the First Quarterly operation and maintenance report have both been reviewed and received Orange County response letters since my last update on August 1st. There were several deficiencies in each report and Terramax is responding in kind to each of our letters. We also issued a response to the Remedial Action Modification for the oxidizer approving Remedial Action Modification.

The next full report due from Terramax is the Second Quarterly operation and maintenance report, which is due September 30th. They will also be responding to our comment letters for the Startup and First Quarterly report as well.

In conclusion, we are probably still 60 days from getting the oxidizer fully online. This is only my estimate and I hope Terramax can meet or beat this date. In the State program, milestones must be met each quarter or be properly justified as to why they weren’t met. Also, in the State program , a remedy must be proposed if milestones aren’t met. Baseline data and the cleanup timetable, four years in our case, are usually not reset. This means that there isn’t a “time-out” called for the milestone schedule while problems like these are worked out.

This month’s summary is brief, but I hope to have more information for you in the next progress update on October 1st. If the Second Quarterly report is submitted on time there will be new milestone data to share with you.

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 show me of any concerns you have.

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

–Forwarded Message Attachment–
Subject: RE: down time at Artist Studio / Sellers Auto 4892201547 / 4892201548
Date: Thu, 13 Sep 2007 09:55:50 -0400


Yes, we had several issues over the past couple of weeks. They included the following:

1. Noise complaints on several occasions – I got calls from neighbors complaining about a loud shrieking noise coming from our system that did not go away. We tried a couple of fixes until we determined that the noise was because the water levels had dropped and the air stripper blower was operating without any water passing through the system. We had the program changed to shut down the air stripper blower 10-15 minutes after the oil/water separator transfer pump stopped pumping.

2. Air compressor faults – the air compressor would shut down on some days when the temperature was excessive. According to the manufacturer, the ambient temperature around the compressor should be less than 105 ?F. After observing the temperature in the control room, we adjusted the ventilation fan to operate as long as temperature is above 85 ?F. We are also working with Bisco to get an additional vent installed in the control room to allow more air movement to help cool the compressor. We have a temporary fix to allow the inlet to receive more air but hope to have the permanent fix implemented within the next 2 weeks.

3. Infiltration gallery switches sending high level signal to the control system preventing the system from operating – When we were completing the last quarterly system and milestone sampling, there were several storms in the area. We believe that one of the storms included a lightning strike that sent a surge from the reference probes in the infiltration gallery through to the EOS control system rendering several channels useless. We sent the panel back to the factory and they did a warranty repair (no charge) and returned the unit. Additionally, Bisco sent a float switch assembly to replace the conductivity probes that would have a ground and prevent surges from reaching the control system. That was installed on 9/11/2007 and the system was restarted and is still operational as of 9:15am today.

4. We have done all the appropriate maintenance for the operating components – the main component that needed maintenance include inspecting the oil/water separator, air stripper, transfer pumps, and mainly the air compressor (maintaining proper oil level, checking filters, checking belt tension).

I have been working on the VCO for the catox getting information to find out the best path for the natural gas vs. propane issue. I have just gotten back a propane quote that appears to be very reasonable. Amerigas can help by providing a 1,000 gallon tank to be placed in either of two locations (the elevated grassy platform inside the equipment staging area or on Tempaco property to the north). Their price is $1.77 per gallon for propane plus tax, etc. I am comparing the overall costs to natural gas, which is available but only at residential pressure (0.25 psi). The volume seems to be sufficient (500 scfh) but a booster is needed to raise the pressure to above 1 psi. I hope to have the VCO submitted by the end of next week.

Please let me know if you need additional information. Thanks.

Robert Horton, P.E.
Terra-Max Engineering, Inc.
1768 Park Center Drive, Suite 380
Orlando, FL 32835
Office: (407) 578-2763 ext 112
Fax: (407) 578-2953

From: []
Sent: Thursday, September 13, 2007 8:59 AM
Subject: down time at Artist Studio / Sellers Auto 4892201547 / 4892201548
Importance: High

I just got back from vacation and am reviewing the down time notifications (8/27/07, 09/03/07, 09/06/07 and 09/11/07). It looks like we have experienced a lot of down time recently. Has the system been down most or all of the last three weeks? Please let me know if we are through with the down time and can expect to run smoothly again.

I am still going through my in box, but I’d like to follow up with the catox VCO to ensure it moves along. We have been successful in addressing the address change and the original RAPM order to FDEP, but I think we still need a RAPM for the catox. If that is something that still needs to be done, I think I can get it out by early next week.


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

Leave a Reply

Please log in using one of these methods to post your comment: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s