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 saidhe thought you (ARB) had estimated our mobile source emissions

### 1. 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 Office415.972.3848 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 94105From: 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