From:•King.Melanie@epamail.epa.gov

Sent:•Tuesday, August 03, 2010 10:48 AM

To:•Higgins, Cortney

Cc:•horowitz.michael@epamail.epa.gov; Wayland.Robertj@epamail.epa.gov;

Nagelhout.Peter@epamail.epa.gov; Talcott.Fred@epamail.epa.gov;

Sorrels.Larry@epamail.epa.gov; Lamson.Amy@epamail.epa.gov

Subject:•Re: Interagency Comments on RICE - SI

Attachments:•Existing SI RICE NESHAP cost per ton and emission reduction 

estimates 8-2_-

10.xls; Interagency comments on RICE - EPA responses 8-2-10.doc

Hi Cortney,

Attached are EPA's responses to the initial set of interagency comments.

We'll be sending responses to the second set of comments separately. As we

were working to address the comments, some questions arose regarding the HAP

emission factors developed by our contractors. Therefore, we determined that

it would be more appropriate to use the HAP emission factors from AP-42, which

is the approach that SBA recommended we use.

We have revised the emission reduction and cost per ton estimates to use the

AP-42 emission factors for HAP. The estimates for VOC also change since the

VOC emissions are a function of the HAP emissions. The revised estimates are

attached.

(See attached file: Existing SI RICE NESHAP cost per ton and emission

reduction estimates 8-2-10.xls)(See attached file: Interagency comments on

RICE - EPA responses 8-2-10.doc)

Melanie King

Energy Strategies Group

Sector Policies and Programs Division

Office of Air Quality Planning and Standards U.S. Environmental Protection

Agency

Mail Code D243-01

RTP, NC 27711

Phone: (919) 541-2469

Fax: (919) 541-5450

king.melanie@epa.gov

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|"Higgins, Cortney" <Cortney_Higgins@omb.eop.gov>

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|Melanie King/RTP/USEPA/US@EPA

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|07/29/2010 02:30 PM

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|Interagency Comments on RICE - SI

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Hi Melanie,

Attached are interagency comments received so far on the RICE rule.

Please let me know if you have any questions.

Regards,

Cortney

[attachment

"InteragencyWorkingCommentsonEPA_RICE_SI_EO12866Review_07292010.pdf"

deleted by Melanie King/RTP/USEPA/US]