Re: Source apportionment modeling files Zarena Post to: Erik Snyder 03/09/2012 07:58 AM Cc: "Dick Karp", "Doug Boyer", "Jim Smith", "Stephen Davis"

From: "Zarena Post" <Zarena.Post@tceq.texas.gov>
To: Erik Snyder/R6/USEPA/US@EPA Cc: "Dick Karp" <Dick.Karp@tceq.texas.gov>, "Doug Boyer" <Doug.Boyer@tceq.texas.gov>, "Jim Smith" <Jim.Smith@tceq.texas.gov>, " Stephen Davis" <Stephen.Davis@tceq.texas.gov> History: This message has been forwarded.
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Hi, Erik,

As we discussed yesterday, attached is a corrected version of the Matagorda

_ DVf

_ Contribution spreadsheet. I've appended "corrected" to the file name to distinguish it from the original.

Here is a summary of the changes in Matagorda contribution to various HGB monitors, as a result of corrections:

Matagorda contribution to MACP in 2006 goes from 1.05 to 0.70 p pb (Figure 26)

Matagorda contribution to HNWA in 2006 goes from 1.86 to 1.54 p pb (Figure 30)

Matagorda contribution to TXCT in 2006 goes from 1.63 to 0.55 p pb (Figure 32)

Matagorda contribution to WALV in 2006 remains unchanged at 0.46 p pb.

Let us know if you need anything else.

Thanks! Zarena

>>> Erik Snyder <Snyder.Erik@epamail.epa.gov> 3/6/2012 4:14 PM >>> That will work fine. I'll grab them first thing in the morning and let you know that I have them.

Thanks for the quick turnaround. -Erik

Lead Regional Air Quality Modeler EPA Region 6 Phone: 214-665-7305 Fax: 214-665-7263email: sn y der.erik @ epa. g ov

From: "Zarena Post" <Zarena.Post@tceq.texas.gov>
To: Erik Snyder/R6/USEPA/US@EPA Cc: "Doug Boyer" <Doug.Boyer@tceq.texas .gov>, "Jim Smith" <Jim.Smith @tceq.texas.gov>, "Stephen Davis" <Stephen.Davis@tceq.texas.gov>, "Zhaohua Fang" <Zhaohua.Fang@tceq.texas.gov>
Date: 03/06/2012 03:32 PM Subject: Re: Source apportionment modeling files

Hi, Erik,

I've posted a bunch of APCA-related files on our FTP site that will mirror at 2 AM tomorrow morning - unless you want them sooner, j ust let us know pretty quick.

The address will be ftp://amdaftp.tceq.texas.gov/ p ub/file

_ transfer/forEPA/ and within that directory will be a folder called "TCEQ Ozone TSD". You should be able to log in anonymously. I've included the APCA output files for both HGB and DFW; and 4 spreadsheets - 2 wavy bacon (one each for HGB and DFW) and 2 DVf contribution (one each for HGB and DFW).

Let us know if you have any questions.

Thanks! Zarena

>>> Erik Snyder <Snyder.Erik@epamail.epa.gov> 3/6/2012 11:43 AM >>> Hi Zarena,
I am writing to request the supporting materials for the comments that TCEQ provided for the proposed designations area in Houston and Dallas. Could you provide the source original apportionment files from the modeling run (I believe they are csv format). Could you also provide the information used for the graphics supplied in the letter. When I looked at the time series plots of the source apportionment, it did not appear that the actual county was plotted in the graphics in the color pdf version we received.

Due to our deadlines, we are trying to turn a summary of comments received around quickly and this information would help greatly in this process.

Please call me to discuss or if you have any questions Thanks, Erik
Lead Regional Air Quality ModelerEPA Re g ion 6 Phone: 214-665-7305 Fax: 214-665-7263 email: snyder.erik@epa.gov