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Re: Avenal Class I Impact Analysis 

Mike McCorison 

to: 

EWalther 

11/21/2007 04:59 PM 

Cc: 

"Eric Walther", Carol Bohnenkamp, federalpower, "Gary Rubenstein", mmccorison, 

"Gilliland, Steve", "Tracey Gilliland", tprocter, John_Bunyak, Mike McCorison, Trent 

Procter, James W Whitfield, Bruce Emmens, Suraj Ahuja, Martin Dumpis, Dee_Morse 

Hide Details 

From: Mike McCorison <mmccorison@fs.fed.us> Sort List... 

To: EWalther@sierraresearch.com 

Cc: "Eric Walther" <EWalther@sierraresearch.com>, Carol 

Bohnenkamp/R9/USEPA/US@EPA, federalpower@houston.rr.com, "Gary Rubenstein" 

<GRubenstein@sierraresearch.com>, mmccorison@fs.fed.us, "Gilliland, Steve" 

<steve.gilliland@synenco.com>, "Tracey Gilliland" <tegilliland@gmail.com>, 

tprocter@fs.fed.us, John_Bunyak@nps.gov, Mike McCorison <mmccorison@fs.fed.us>, 

Trent Procter <tprocter@fs.fed.us>, James W Whitfield <jwhitfield@fs.fed.us>, Bruce 

Emmens <bemmens@fs.fed.us>, Suraj Ahuja <sahuja@fs.fed.us>, Martin Dumpis 

<mdumpis@fs.fed.us>, Dee_Morse@nps.gov 

History: This message has been forwarded. 

The Forest Service manages several Class I areas in the areas adjacent to Pinnacles NM and 

Sequoia NP. We concur with Dee Morse's comments, that given the low emissions projected for 

this facility and the fact that these FS wilderness areas fall outside the 100 km modeling radius, we 

also do not anticipate the emissions from the Avenal Project will significantly impact the Forest 

Service managed Class I areas. 

thanks 

Mike Mc Corison 

USFS Southern California 

Air Resource Specialist 

Angeles National Forest 

Voice 626-574-5286 

Mobile 626-437-0624 

Fax 626-574-5233 

filfd/r·\nOCllment~~nd SettinQ~\chohnenk\LocalSettinQ~\Temn\note~RAAA2'5\~wehn24___ '5f) "nOll 
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-----Dee_Morse@nps.gov wrote: ----­

To: "Eric Walther" <EWalther@sierraresearch.com> 

From: Dee_Morse@nps.gov 

Date: 11/21/2007 09:38AM 

cc: Bohnenkamp.Carol@epamail.epa.gov, federalpower@houston.rr.com, "Gary Rubenstein"
 

<GRubenstein@sierraresearch.com>, mmccorison@fs.fed.us, "Gilliland, Steve"
 

<steve.gilliland@synenco.com>, "Tracey Gilliland" <tegilliland@gmail.com>, tprocter@fs.fed.us,
 

John_Bunyak@nps.gov
 

Subject: Re: Avenal Class I Impact Analysis
 

Eric, 

We reviewed the information you provided regarding the Avenal Energy 

Project in Avenal, California. Given the relatively low emission 

increases (144 TPY of NOx, 81 TPY of PM10 and 16 TPY of SOx) and the 

distance to two National Park Service Class I Air Quality Areas (113 km 

southeast of Pinnacles NM and 113 km west of Sequoia NP), we do not 

anticipate the emissions from the Avenal Project will significantly 

impact either National Park Service Class I area. However, I do want to 

inform you that the statement on page 11 of the Air Dispersion Modeling 

and Health Risk Assessment Protocol - Avenal Energy Project "The 

project is not located within 100 km of Class I areas, therefore the 

project although a major source will not need to evaluate impacts to 

visibility and other air quality related values at Class I areas." is 

incorrect. The Federal Land Managers of Class I areas are concerned 

about proposed facilities beyond 100 km if the emission increases are 

significantly large, and may request a full air quality analysis for 

these proposed facilities on a cases by case basis. Therefore, there is 

no automatic 100 km cutoff for Class I area impact analyses. 

Thanks, 

Dee Morse
 

Environmental Protection Specialist
 

Air Resources Division
 

Natural Resource Program Center
 

National Park Service
 

Phone: 303 969-2817
 

Fax: 303 969-2822
 

e-mail: dee_morse@nps.gov
 

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To: <Dee_Morse@nps.gov>, <tprocter@fs.fed.us>, 
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<mmccorison@fs.fed.us> 1 

I cc: "Gilliland, Steve" <steve.gilliland@synenco.com>, 

<federalpower@houston.rr.com>, "Tracey Gilliland" 1 

I <tegilliland@gmail.com>, "Gary Rubenstein" 

<GRubenstein@sierraresearch.com>, "Eric Walther" 

1 <EWalther@sierraresearch.com> 

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Subject: FW: Avenal Class I Impact Analysis 

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Dee, Trent and Mike: 

At the request of Carol Bohnenkamp, and confirmed in a call with Dee today, 

I am providing you the following maximum annual emissions from the proposed 

Avenal Energy Project, for which project Carol has already forwarded to you 

the Air Dispersion Modeling and Health Risk Assessment Protocol: 

NOx: 144.3 tpy 

SOx: 16.3 tpy 

PM10: 80.7 tpy 

As stated in the protocol, the closest distance from the Avenal Energy 

Project site to a Class I area, Pinnacles National Monument, is 

approximately 113 km. 

We appreciate your review of the protocol. Hopefully, your review of the 

emissions and distance will support our determination in the protocol that 

a Class I area impact analysis will not be required for this project. 

Eric 

Eric Walther 

Sierra Research 

1801 J Street 

Sacramento, CA 95811-3009 

916-444-6666 Main x121 

916-444-8373 Fax 

916-833-8774 Cell 

ewalther@sierraresearch.com 

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