From: Armen Kamian

To: LEVIN, NANCY

Subject: FW: PM 2.5 Emissions Inventory

Date: Friday, December 13, 2013 4:21:32 PM

Attachments: image002.png

Hi Nancy,

This came back quickly. I’m just about out of here, but I hope this information helps -

Armen

From: Ruiz, Gabe@ARB [mailto:gruiz@arb.ca.gov] 

Sent: Friday, December 13, 2013 4:20 PM

To: Armen Kamian

Subject: RE: PM 2.5 Emissions Inventory

Yes, we provided the mobile source emission estimates. We used EMFAC2011 for on-road sources;

however, we did not have an OFFROAD2011 model per se. Instead, the various off-road categories

were updated using individual modules. Let me know if you have any further questions.

--Gabe

From: Armen Kamian [mailto:akamian@bcaqmd.org] 

Sent: Friday, December 13, 2013 4:11 PM

To: Ruiz, Gabe@ARB

Subject: FW: PM 2.5 Emissions Inventory

Gabe, thanks for your help earlier – I have one more question from Nancy Levin at EPA- David said

he thought you (ARB) had estimated our mobile source emissions1. Please confirm that mobile source emissions were estimated by CARB using the

EMFAC 2011 and OFFROAD2011 models

Armen

From: LEVIN, NANCY [mailto:Levin.Nancy@epa.gov] 

Sent: Friday, December 13, 2013 3:55 PM

To: Armen Kamian

Subject: RE: PM 2.5 Emissions Inventory

Hi Armen,

I just need the info requested in #2 below - what model was used by CARB to develop your off-road

emissions inventory numbers.

Thanks.

______________________________________________

Nancy Levin Air Rules Office
415.972.3848 levin.nancy@epa.gov

US EPA Region 9, 75 Hawthorne St (AIR-4) San Francisco, CA 94105

From: Armen Kamian [mailto:akamian@bcaqmd.org] 

Sent: Friday, December 13, 2013 1:11 PM

To: LEVIN, NANCY

Subject: RE: PM 2.5 Emissions Inventory

Nancy,

Have you received everything you needed from me? I’m sorry this has been such a long process....

Armen

From: LEVIN, NANCY [mailto:Levin.Nancy@epa.gov] 

Sent: Monday, December 09, 2013 4:09 PM

To: Armen Kamian; David Lusk

Subject: FW: PM 2.5 Emissions Inventory

Hi – Just following up with the few remaining issues on the PM2.5 inventory:

2. Please confirm the starting and ending month for the “winter” inventory.

3. Please confirm that mobile source emissions were estimated by CARB using the EMFAC 2011 and OFFROAD2011 models

4. Please explain the following - The District developed the woodstove/fireplace emissions numbers using “calculations from the

Rule 207 requirements.”

Thanks!

______________________________________________

Nancy Levin Air Rules Office

415.972.3848 levin.nancy@epa.gov

US EPA Region 9, 75 Hawthorne St (AIR-4) San Francisco, CA 94105

From: LEVIN, NANCY 

Sent: Monday, September 23, 2013 2:45 PM

To: 'Armen Kamian'

Subject: RE: PM 2.5 Emissions Inventory

Hi Armen,

Thank you (and David Lusk, of course) for the information on the PM2.5 inventory modeling. As I

mentioned today, I have some follow-up questions, which I indicated in the email below.

Regards,

Nancy

______________________________________________

Nancy Levin Air Rules Office

415.972.3848 levin.nancy@epa.gov

US EPA Region 9, 75 Hawthorne St (AIR-4) San Francisco, CA 94105
From: Armen Kamian [mailto:akamian@bcaqmd.org] 

Sent: Friday, August 09, 2013 10:20 AM

To: LEVIN, NANCY

Subject: FW: PM 2.5 Emissions Inventory

Hi Nancy,

Please see David’s reply below in response t your question on inventory modeling. If you have any

questions, please let me know.

Armen Kamian

Associate Air Quality Planner

Butte County Air Quality Management District

629 Entler Avenue, Suite 15

Chico, CA 95928

530-332-9400, x108

www.bcaqmd.org

From: David Lusk 

Sent: Friday, August 09, 2013 9:34 AM

To: Armen Kamian

Subject: RE: PM 2.5 Emissions Inventory

Armen,

We follow ARB’s methodology for most categories. These can be found at:

http://www.arb.ca.gov/ei/areasrc/index0.htm

Question: Could you specify the categories that used ARB models, and which used other models? 

For the PM2.5 inventory, we developed the woodstove/fireplace emissions numbers using our calculations from the

Rule 207 requirements.

Question: Could you explain this a little more? Also, if the methodology was based on inputs for

number and type of devices in use, what were these assumptions?

For the PM2.5 inventory, we adjusted the rice tillage calculations b/c they were based on the San Joaquin Valley

data with different soils data and planting schedule. These adjustments were all coordinated with ARB staff in

charge of these areas.

Question: Can you further describe these changes, and provide any documentation of the

coordination with ARB that would be relevant?

David

David J. Lusk

Senior Air Quality Engineer
Butte County Air Quality Management District

629 Entler Avenue, Suite 15

Chico, CA 95928

Phone: (530) 332-9400, ext. 107

FAX (530) 332-9417

email: dlusk@bcaqmd.org

From: Armen Kamian 

Sent: Friday, August 09, 2013 9:01 AM

To: David Lusk

Subject: FW: PM 2.5 Emissions Inventory

See #4 below –

Armen

From: LEVIN, NANCY [mailto:Levin.Nancy@epa.gov] 

Sent: Thursday, August 08, 2013 10:39 AM

To: Armen Kamian

Subject: PM 2.5 Emissions Inventory

Hi Armen,

Thanks for taking my call this morning. I am reviewing the Chico/Butte County 2012 PM 2.5

emissions inventory for John Ungvarsky, and am just looking for a few pieces of information

to complete my review. I’ve listed them below. Feel free to call if you have questions. My

phone is 415-972-3848.

1. I have a copy of the August 17, 2012 public notice for the September 27, 2012 public

hearing, but I also need a proof of publication or other evidence of publication for

the notice (where and when published);

2. I wanted to confirm that EMFAC11 and OFFROAD11 models were used for the

mobile source inventories, and if not, what models were used;

3. Could you tell me why the base year of 2005 was used, rather than a more recent

year?

4. Would you be able to provide the name or type of methodology used to estimate

general area sources, such as solvent evaporation?

5. Were there any public comments on this inventory?

Thanks!

Regards,

Nancy

______________________________________________
Nancy Levin Air Rules Office

415.972.3848 levin.nancy@epa.gov

US EPA Region 9, 75 Hawthorne St (AIR-4) San Francisco, CA 94105