1 Attachment 

Shirley: 

 

Thanks for the note on timing. 

 

Attached for your use are the District application forms that provide additional 

specifications on the proposed emitting equipment. 

 

Eric 

 

 

-----Original Message----- 

From: Rivera.Shirley@epamail.epa.gov [mailto:Rivera.Shirley@epamail.epa.gov] 

Sent: Wednesday, March 26, 2008 7:13 AM 

To: Eric Walther 

Cc: Hoag.Katherine@epamail.epa.gov

Subject: Pending - Re: Avenal #08-SJ-01: "Heads Up" list 

RE: Pending - Re: Avenal #08-SJ-01: "Heads Up" list 

Eric Walther 

to: 

Shirley Rivera 

03/26/2008 10:59 AM 

Cc: 

Katherine Hoag, "Jim Rexroad" 

Hide Details 

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

To: Shirley Rivera/R9/USEPA/US@EPA 

Cc: Katherine Hoag/R9/USEPA/US@EPA, "Jim Rexroad" <Jim.Rexroad@macquarie.com>

History: This message has been replied to. 

Forms set.pdf

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Eric, 

 

I intend to get Batch #1 out to you by noon tomorrow, if not by this 

early evening. - Shirl 

 

------------------------------------------- 

Shirley F. Rivera 

U.S. EPA, Region 9, Air Permits Office (AIR-3) | 75 Hawthorne St., San 

Francisco, CA 94105 

T: (415) 972-3966 | F: (415) 947-3579 | Rivera.Shirley@epa.gov

 

 

 

 

 

 Shirley 

 Rivera/R9/USEPA/ 

 US To 

 Eric Walther 

 03/20/2008 08:29 cc 

 AM Katherine Hoag/R9/USEPA/US@EPA 

 Subject 

 Avenal #08-SJ-01: "Heads Up" list 

 

 

 

 

 

 

 

 

 

 

Eric, 

 

I will rely on you to forward, as needed, w/in your team regarding this 

"heads up" per the previous string of e/m this morning. 

 

 a) Project Description - I will check internally what level of 

equipment description detail (specifics vs. generic) we need for our 

process. At a minimum, if detail is provided, we will ensure consistency 

with the PDOC, where applicable. 

 

 b) Emissions - I still need to develop my working spreadsheet to ensure 

I properly understand the potential worst-case scenarios (e.g. modeling 

related) and operations - normal, start-up/shutdown, and other transient 

periods. I will focus initial on the worst-case scenarios - emission 

estimates and description of operating scenarios. 

 

 c) BACT - 

 CO - - - At this point, I will check internally regarding the CO 4 

ppm level (proposed) compared to the proposed 2 ppm level of a 

comparable project to be located in SJVAPCD. 

 NH3 slip - - - At this point, I will check internally regarding 

the proposed NH3 slip level compared to our other recent projects and 

general approach for NH3 slip. 

 Technology evaluation - - - At this point, it is likely we will 

want a "top-down" assessment for the control technology evaluation. 

Therefore, initial thoughts: 

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 CTs/HRSG - - - May ask, at a minimum, for evaluation of Emerachem 

 technology. I also am going to see what other NOx technologies to 

 consider. 

 Others - - still processing on what we typically have internally for 

 the other equipment. 

 

 d) AQIA - Carol to address. See item (b) above. 

 

 e) Additional Impacts Analysis - Will be checking on Visibility 

Impairment Analysis requirement. Will also check on Soils and 

Vegetation. For a different PSD project I have oversight, I have two 

references given to me from a modeler. 

 "A Screening Procedure for the Impacts of Air Pollution Sources on 

 Plants, Soils, and Animals", EPA 450/2-81-078, December 1980 

 EPA's "Workbook for Plume Visual Impact Screening and Analysis 

 (Revised), EPA-454/R-92-023, October, 1992. 

So I will be looking at whether/how these are applicable to Avenal's 

analysis. 

 

 f) ESA - On-going. 

======= 

 

gotta run to training. checkin later - s. 

 

 

------------------------------------------- 

Shirley F. Rivera 

U.S. EPA, Region 9, Air Permits Office (AIR-3) | 75 Hawthorne St., San 

Francisco, CA 94105 

T: (415) 972-3966 | F: (415) 947-3579 | Rivera.Shirley@epa.gov

 

 

 

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