Document ID: EPA-R09-OAR-2012-0021-0220
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2012-11-16T05:00Z

"README" for modeling-related files

Arizona Regional Haze FIP, November 2012 - Final
covering AEPCO Apache, APS Cholla, and SRP Coronado BART
EPA Region 9

Note on Zip Archives of Modeling Files
The modeling files were first stored with no compression (e.g. wzzip -e0 Cholla_cpf_nocomp.zip); the contents are listed in a corresponding text file.  The "nocomp.zip" file was then compressed using LZMA compression (e.g. wzzip -el Cholla_cpf.zipx) to give about 99% compression.

=======================================================
APS Cholla

Remodeling of all NPR scenarios.  

Changes from NPR: EPRI method for H2SO4 throughout, merged stacks for units 2 & 3, unit 1 at 2011 CAMD SO2 emission rate to reflect recently upgraded wet FGD and also more recent coal (units 2, 3, and 4 remain at 0.15 lb/MMBtu ADEQ BART emission rates as in NPR); unit 2 PM speciation was revised.  Used in NFRM to give updated estimates of visibility benefits.

Input and output file-naming convention (different than for NPR):

CALPUFF and POSTUTIL file names have the format:
	XX_Cholla_SCEN_YYYY.inp   or  .lst

	XX = cf for CALPUFF, pu for POSTUTIL
	YYYY = 2001, 2002, or 2003
	SCEN = scenario, one of:
		ebase	Base case, LNB
		ectrl1	SCNR on u2,3,4
		ectrl2	SCR on u2,3,4
		ectrl2n	SCR on u2,3,4; no added SCR SO4

CALPOST file names have the format:
	ct_cholla_SCEN_VMETH_AREA_YYYY.inp   or  .lst

	VMETH = vm6a, vm6b, vm8a, m8b for MVISBK = 6 or 8, 
		and natural background concentrations based on annual average or best 20% of days.
	AREA = 4-letter abbreviation for Class I area

Cholla_cpf.zipx	CALPUFF files
Cholla_putil.zipx	POSTUTIL files
Cholla_cpost.zipx	CALPOST files
Cholla_visx.zipx	CSV files extracted from CALPOST output

	text listings of *nocomp.zip within the above:
	Cholla_remodel_ziplist.txt

Cholla_NFR_remodeling.xls
	CALPUFF input calculations, and extracted visibility results

2006FinalDryBottomPC_FGD_FFpmSpeciationProfile_Cholla-Unit2-filtPM.xls
	new speciation for unit 2, using FGD+FF consistent with units 3 & 4
	(formerly had used scrubber-only speciation)

-------------------------------------------------------
"mrg23"

Remodeling of all NPR scenarios to see effect of merged stack.

Changes from NPR: merged stacks for units 2 & 3 (did *not* change H2SO4 or unit 1 emissions).  Used in NFRM only to state effect of merged stack.

Cholla_mrg23_cpf.zipx	CALPUFF files
Cholla_mrg23_putil.zipx	POSTUTIL files
Cholla_mrg23_cpost.zipx	CALPOST files
Cholla_mrg23_visx.zipx	CSV files extracted from CALPOST output

	text listings of *nocomp.zip within the above:
	Cholla_mrg23_ziplist.txt

Cholla_mrg23_visx_table.xls
	Excel spreadsheet with tables comparing NPR cases to those with merged stack

=======================================================
SRP Coronado

"base_p" case: LNB on both units 1 and 2. 
For unit 1, NOx emission rate is 16.6 TPD from CAMD 2010-11-03 (same as NPR "base_rs" and "base_q"). For unit 2, it's a low-load LNB emission rate, meant to represent Consent Decree's "SCR" not operating at low loads; 6.842 tpd from CAMD 2012-04-01, in a low-load period identified by SRP. Used in NFRM only to compare "base_p" to "base_q" LNB on both units from the FIP Proposal to get benefit of unit 2 Consent Decree SCR.

Input and output file-naming convention is same as for NPR.

Coronado_NFRph1_cpf.zipx	CALPUFF files
Coronado_NFRph1_putil.zipx	POSTUTIL files
Coronado_NFRph1_cpost.zipx	CALPOST files
Coronado_NFRph1_visx.zipx	CSV files extracted from CALPOST output

	text listings of *nocomp.zip within the above:
	Coronado_NFRph1_ziplist.txt

Coronado_base_p_visx.xls
	Excel spreadsheet with tables comparing "base_p" to "base_q"; includes extracted CALPOST output