### 1

From: "Van Der Meyden, Henk" <Henk.VanDerMeyden@alcoa.com>

To: Rochelle Boyd/RTP/USEPA/US@EPA

Cc: "Palazzolo, Michael A." <Michael.Palazzolo@alcoa.com>, "Shelby, Laurie M." <Laurie.Shelby@alcoa.com>

Date: 02/16/2011 03:52 PM

Subject: RE: CBI and Metals Data

Roch elle,

In response to the your request, attached please find a scanned image of the report from the 1993 testing

conducted on a Potline Scrubber Stack and a Potline Roof Monitor.

Thanks,

Henk van der Meyden, PG

Environmental Manager

Alcoa

- Mt. H olly

Office: (843) 572

- 5361

Cell: (843) 296

- 3359

Fax: (843) 572

- 5378

From: Boyd.Rochelle@epamail.epa.gov [ mailto:Boyd.Rochelle@epamail.epa.gov ]

Sent: Tuesday, February 15, 2011 12:40 PM

To: Van Der Meyden, Henk

Subject: RE: CBI and Metals Data

Thanks Henk, but I sent you a follow

- up e

- mail. I got the 3 page summaries but we need the whole

report, not just the summary. Thanks

Rochelle Boyd, Environmental Engineer

U.S. Environmental Pro tection Agency

Office of Air Quality Planning and Standards

Sector Policies and Programs Division

109 T.W. Alexander Drive, RTP, NC 27711

Mail Drop D243

- 02

Ph: (919) 541

- 1390 Fax: (919) 541

- 3207

Email: boyd.rochelle@epa.gov

From: "Van Der Meyden, Henk" <Henk.VanDerMeyden@alcoa.com>

To: Rochelle Boyd/RTP/USEPA/US@EPA

Cc: "Van Der Meyden, Henk" <Henk.VanDerMeyden@alcoa.com>

Date: 02/15/2011 12:17 PM

Subject: RE: CBI and Metals Data

Rochelle,

This CBI data that you are referring to is the production data from t he Potline fluoride emissions test reports that

were provided during the February 2010 site visit. David Green from RTI has requested that we pull the

production information from these reports so that he can reference the test data without compromising C BI. We

are evaluating his request.

I thought I had send you the metals data. The two PDF files are attached, one for a Potline Scrubber stack and one

for a Potline roof monitor. This data was collected in 1993 for use with permitting of and complianc e with air

toxics emissions under South Carolina Standard 8. The data is also used for use in the annual emissions inventory.

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The roof monitor samples were collected via the Method 14 down comer and then collected isokinetically using

the sampling appa ratus and methodology described in EPA Method 0012 “Methodology for the Determination of

Metals Emissions in Exhaust Gases from Hazardous Waste Incineration and Similar Combustion Processes.”

The scrubber stack samples were collected isokinetically usin g the sampling apparatus and methodology described

in EPA Method 0012 “Methodology for the Determination of Metals Emissions in Exhaust Gases from Hazardous

Waste Incineration and Similar Combustion Processes.”

Regards,

Henk

Henk van der Meyden, P G

Environmental Manager

Alcoa

- Mt. Holly

Office: (843) 572

- 5361

Cell: (843) 296

- 3359

Fax: (843) 572

- 5378



### -

_____________________________________________________________________________________

_______________________ From: Boyd.Rochelle@epamail.epa.gov [ mailto:Boyd.Rochelle@epamail.epa.gov ]

Sent: Tuesday, February 15, 2011 10:43 AM

To: Van Der Meyden, Henk

Subject: CBI

Hello Henk. The data that you are sending CBI is this the production data related to the metals testing or

is it some other testing that was done, because I have not received the Stack test report yet? Thanks

Rochelle Boyd, Environmental Engineer

U.S. Environmental Protection Agency

Office of Air Qua lity Planning and Standards

Sector Policies and Programs Division

109 T.W. Alexander Drive, RTP, NC 27711

Mail Drop D243

- 02

Ph: (919) 541

- 1390 Fax: (919) 541

- 3207

Email: boyd.rochelle@epa.gov[attachment "Potline Stack Metals Data 1993.pdf" deleted by Roc helle

Boyd/RTP/USEPA/US] [attachment "Potline Roof Monitor Metals Data 1993.pdf" deleted by Rochelle

Boyd/RTP/USEPA/US]