Offices nationwide 8 trinityconsultants.com 

East Sheridan, Suite 205, Oklahoma City, OK 73104 U.S.A. " (405) 228·3292 a Fa.x (405) 228-3293 

December 1, 2006 

Mr. Eddie Terrill 

Director, Air Quality Division 

Oklahoma Department of Environmental Quality 

P,O. Box 1677 

Oklahoma City, OK 73101-1677 

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RECEIVED 


[ DEC 0-1 2006 ] 

AIR Q6JAb~TY 

Re: 	 Visibility Modeling and BART Waiver Request 

Public Service Company ofOklahoma 

Riverside Power Station 

Dear Mr. Terrill: 

On behalf of the Public Service Company of Oklahoma (PSO), a unit of American Electric Power, Trinity 

Consultants is pleased to submit this BART Wavier Request for the Riverside Power Station. The 

Riverside Station has been identified as potentially subject to BART under the Regional Haze Program. 

Consequently, PSO contracted with Trinity Consultants to determine the visibility impact of the facility 

on the nearby Class I Areas. The report ofthe modeling study is enclosed. The CALPUFF refined 

modeling conducted by Trinity confmns that the visibility impact is less than the 0.5 deciview threshold 

at Class I receptors located within 300 kilometers from the Station. 

In accordance with OAC 252: 100-8-73, PSO is requesting a waiver from DEQ that a BART 

determination for the Riverside Power Station is not required. If you have any questions or need 

additional information, please call Mr. N. N. Dharrnajaran at (214) 777-l373 or me at (405) 228-3292. 

Sincerely, 

Principal Consultant 

Encl: Visibility Modeling Report 

Copy: N. N. Dharmajaran, American Electric Power 
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CALPUFF BART MODELING REpORT • REFINED ANALYSIS 

PUBLIC SERVICE COMPANY OF OKLAHOMA 

RIVERSIDE POWER STATION 

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PU.Lle 5.RVle. 

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OICI.AHOMA" 


AunitofAmerican Electric Power

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TULSA,OK 

Prepared by: 

N. N. Dharrnajaran· AEPlPublic Service Company ofOklahoma 

Vern Choquette • Principal Consultant 

Don Whitney, PE· Managing Consultant 

Eugene Chen, PE • Senior Consultant 

Jeremy Townley • Consultant 

TR1NITY CONSULTANTS 

120 East Sheridan 

Suite 205 

Oklahoma City, OK 73104 

(405) 228-3292 

November 28, 2006 

Project 063701.0005 

RECEIVED 


DECO~l 1006 

AIR QUALITY 


liimtyA CQnsultahts 

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TABLE OF CONTENTS 


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• 1. EXECUTIVE SUMMARY •.•••••..•••••.....••••••.•••••••••••••••••••••••••••••••••••.••.•••••••.•..••...••..•.. 1-1 


1.1 BACKGROUND.....................,...............................•.........•..............••....................... 1-1 


1.2 OBJECTIVE ............................................................................................................ 1-1 


1.3 LOCATION OF SOURCES AND RELEVANT CLASS I AREAS ..................................... 1-2 


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1.4 MODEL RESULTS .................................................................................................. 1-2 


2. CALPUFF MODELING SYSTEM.•....•...•....•..•..•.•.••.••.•...••..•..•........•.......•.......••.... 2-1


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2.1 MODEL VERSIONS................................................................................................. 2-1 


2.2 MODELING DOMAIN ............................................................................................. 2-2


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" 3. CALMET ............................................................................................................ 3-1 


3.1 GEOPHYSICAL DATA............................................................................................. 3-1 


3.1.1 TERRAIN DATA ................................................................................................... 3-1 


3.1.2 LANDUSEDATA ................................................................................................ 3-3 


3.2 METEOROLOGICAL DATA ..................................................................................... 3-4 


3.2.1 MESOSCALE MODEL DATA ................................................................................ 3-4 


3.2.2 SURFACE DATA .................................................................................................. 3-5
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3.2.3 UPPER AIR DATA................................................................................................ 3-5 
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4. CALPUFF........................................................................................................... 4-1 


4.1 BART-ELIGIBLE SOURCES ................................................................................... 4-1 


4.2 SOURCE EMISSIONS DATA .................................................................................... 4-1 


4.2.1 PM10 EMISSIONS ................................................................................................. 4-2 


4.2.2 STACK PARAMETERS .......................................................................................... 4-2 


4.3 RECEPTOR LOCATIONS.......................................................................................... 4-3 


4.4 B'ACKGROUND OZONE .......................................................................................... 4-5 


4.5 BACKGROUND AMMONIA ....................:................................................................ 4-6 


4.6 CALPUFF MODEL CONTROL PARAMETERS ........................................................ 4-6 


5. CALPOST........................................................................................................... 5-1 


5.1 LIGHT EXTINCTION ALGORI1lIM........................................................................... 5-1 


5.2 CALPOST PROCESSING METHOD......................................................................... 5-1 


5.3 NATURAL BACKGROUND ...................................................................................... 5-2 


5.4 EVALUATING BART-EXEMPTION ......................................................................... 5-2 


5.5 SUMMARY OF CALPOST CONTROL PARAMETERS............................................... 5-2 
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6. MODEL RESULTS .•••..••.••...........••..••.••..•.•......•......•........•...••.••..•....•...•..•..•..•...•..... 6-1
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• ApPENDIX A - EMISSION DATA 

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PSO 1 Trinity Consultants 

Riverside Power Station 063701.0905 
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ApPENDIX B - DATA FILE LIST 

APPENDIX C - MODEL INPUT/OUTPUT FILES 

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• LIST OF TABLES 

TABLE 2-1. CALPUFF MODELING SYSTEM VERSION NUMBERS ........................................................ 2-1 


TABLE 2-2. VERTICAL GRID STRUCTURE .......................................................................................... 2-3 


TABLE 3-1. SUMMARY OF CALMET INPUTS .................................................................................... 3-7 


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TABLE 4-1. BOILER CONSTRUCTION DATE SUMMARy...................................................................... 4-1
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• TABLE 4-2. ESTIMATED 24-HOUR AVERAGE EMISSION RATES ......................................................... 4-2 
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TABLE 4-3. SPECIATED PM10 EMISSIONS ......................................................................................... 4-2
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TABLE 4-4. POINT SOURCE STACK PARAMETERS.............................................................................. 4-2 


TABLE 4-5. SUMMARY OF CALPUFF INPUTS ................................................................................... 4-6 


TABLE 5-1. MONTHLY HUMIDITYFACTORS.......;..............;....~.-;, ..........................:............:..,........:... 5-1
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• TABLE5-2. DEFAULT AVERAGE ANNUAL NATURAL BACKGROUND LEVELS .................................. 5-2 


TABLE 5-3. SUMMARY oFCALPOST INPUTS ................................................................................... 5-2 


TABLE 6-1. VISIBILITY IMPACT MODEL RESULTS FOR CANEY CREEK 2001-03 ............................... 6-1 


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• TABLE 6-2. VISIBILITY IMPACT MODEL RESULTS FOR HERCULES GLADES 2001-03 ....................... 6-2 


TABLE 6-3. VISIBILITY IMPACT MODEL RESULTS FOR UPPER BUFFALO 2001-03 ............................ 6-3 


TABLE 6-4. VISIBILITY IMPACT MODEL RESULTS FOR WICHITA MOUNTAINS 2001-03 ................... 6-4 


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PSO 111 Trinity Consultants 

Riverside Power Station 063701.0005 
LIST OF FIGURES 

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• FIGURE 1-1. LOCATION OF RIVERSIDE POWER STATION AND NEARBY CLASS I AREAS .................. 1-3 


FIGURE 2-1. PROPOSED MODELING DOMAIN .................................................................................... 2-2


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FIGURE 3-1. PLOT OF MODELING DOMAIN USGS TERRAIN DATA ................................................... 3-2 


FIGURE 3-3. PLOT OF SURFACE STATIONS ....................................................:.................................... 3-5 


FIGURE 3-4. PLOT OF PRECIPITATION STATIONS ............................................................................... 3-6 


FIGURE 4-1.WICHITA MOUNTAINS WILDERNESS RECEPTOR LOCATIONS ......................................... 4-3 


FIGURE 4-2. CANEY CREEK WILDERNESS RECEPTOR LOCATIONS..................................................... 4-4 


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• FIGURE 4-3. HERCULES-GLADES WILDERNESS RECEPTOR LOCATIONS ............................................ 4-4 


FIGURE 4-4. UPPER BUFFALO WILDERNESS RECEPTOR LOCATIONS ................................................. 4-5
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1. EXECUTIVE SUMMARY 


1.1 BACKGROUND 

On July 1, 1999, the U.S. Environmental Protection Agency (EPA) published the final Regional Haze 

Rule (RHR). The objective of the RHR is to improve visibility in 156 specific areas across the United 

States, known as Class I areas. The Clean Air Act defmes Class I areas as certain national parks (over 

6,000 acres), wilderness areas (over 5,000 acres), national memorial parks (over 5,000 acres), and 

international parks that were in existence on August 7, 1977. 

On July 6, 2005, the EPA published amendments to its 1999 RHR, often called the BART rule, which 

included guidance for making source-specific Best Available Retrofit Technology (BART) 

determinations. The BART rule defines BART-eligible sources as sources that meet the following 

criteria: 

(1) Have potential emissions of at least250 tons per year of a visibility-impairing pollutant, 

(2) Were "in existence" between August 7, 1962 and August 7, 1977, and 

(3) Are listed as one ofthe 26 listed source categories in the guidance. 

A BART-eligible source is not automatically subject to BART. Rather, BART-eligible sources are 

subject-to-BART if the sources are "reasonably anticipated to cause or contribute to visibility 

impairment in any federal mandatory Class I area." EPA has determined that sources are reasonably 

anticipated to cause or contribute to visibility impairment ifthe visibility impacts from a source are 

greater than 0.5 deciviews (dv) when compared against a natural background. 

Air quality modeling is the tool that is used to determine a source's visibility impacts. States have the 

authority to exempt certain BART-eligible sources from installing BART controls ifthe results ofthe 

dispersion modeling demonstrate that the source cannot reasonably be anticipated to cause or 

contribute to visibility impairment in a Class I area. Further, states also have the authority to define 

the modeling procedures for conducting modeling related to making BART determinations. 

To promote consistency between states in the development of BART modeling protocols and to 

harmonize the approaches between adjacent RPOs, the Central States Regional Air Planning > 

(CENRAP) organization developed BART Modeling Guidelines (December 15,2005). The intent of 

the guidelines is to assist CENRAP states and source operators in the development of statewide and 

source-specific modeling protocols. 

1.2 OBJECTIVE 

The objective ofthis document is to provide a report summarizing the model results and the modeling 

methods and procedures that were followed by Trinity when conducting refined modeling for Public 

Service Company ofOklahoma (PSO), a unit ofAmerican Electric Power (AEP), Riverside Power 

Station located near Tulsa, OK in Tulsa County. 

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• 1.3 LOCATION OF SOURCES AND RELEVANT CLASS I AREAS 

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PSO's Riverside Power Station is located in Tulsa, OK, and has the potential to emit more than 250 

tpy of certain BART pollutants. The facility operates as an electricity-generating station and has 

several boilers that primarily consume natural gas. PSO has identified the sources listed in Appendix 

A at the Riverside Station as sources that meet the three criteria for being BART-eligible sources. 

These sources include: 

.. Unit 1, 4684 MMBtulhr boiler (Babcock & Wilcox) 

.. Unit 2, 4766 MMBtulhr boiler (Babcock & Wilcox) 

A detailed summary of BART-eligibility is included in Section 4.2. As described in CENRAP's 

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BART Modeling Guidelines, Class I areas within 300 km of the station are included in this refmed 

analysis. The following Class I areas fall within this 300 km radius: There are no other Class I areas 

within 300 km ofthe Riverside Station. Figure 1-1 provides a plot ofthe location ofthe Riverside 

Station in relation to these Class I areas. •

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Caney Creek Wilderness 239 

Hercules-Glades Wilderness 277 

Upper Buffalo Wilderness 224

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1.4 MODELREsULTS 

Model results from the refmed analysis are included in Section 6. As summarized in this section, the

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(December 15,2005). Note that while the procedures established in this report adhere to the 

Guideline, formal approval of the procedures and methods established in this document is still •

• pending from the Oklahoma DEQ. While these results should not be considered fmal, the qualitative 

analysis of BART applicability for the Riverside Station can be considered reliable. 

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FIGURE 1-1. LOCATION OF RIVERSIDE POWER STATION AND NEARBY CLASS I AREAS 

Note: Riverside Power Station, Class I area, and domain boundary locations presented above are approximations for visual purposes and are not exact. 

1-3 PSO Trinity Consultants 


Riverside Power Station 063701.0005 

2. CALPUFF MODELING SYSTEM 


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The main components ofthe CALPUFF modeling system are CALMET, CALPUFF, and CALPOST. 

CALMET is the meteorological model that generates hourly three-dimensional meteorological fields 

such as wind and temperature. CALPUFF simulates the non-steady state transport, dispersion, and 

chemical transformation of air pollutants emitted from a source in "puffs". CALPUFF calculates 

hourly concentrations of visibility affecting pollutants at each specified receptor in a modeling ( 

domain. CALPOST is the post-processor for CALPUFF that computes visibility impacts from a 

source based on the visibility affecting pollutant concentrations that were output by CALPUFF. 

2.1 MODEL VERSIONS 

Earth Tech, Inc. is the primary developer ofthe CALPUFF modeling system and all related programs. 

The versions of the CALPUFF modeling system programs that Trinity used for the Riverside 

Station's modeling are listed in Table 2-1. Table 2-1 also compares the program versions that Trinity 

used with the program versions recommended by CENRAP. Note that some ofthe program versions 

are not the same as the program versions recommended by CENRAP. Certain programs were utilized 

in order to avoid data compatibility issues with previous versions ofthe CALPUFF system. Trinity 

used the following software version numbers listed below. Model selection was primarily driven by a 

desire to utilize the most recent release ofCALMET. CALPUFF and CALPOST executable versions 

were then selected as appropriate for compatibility. 

TABLE 2-1. CALPUFF MODELING SYSTEM VERSION NUMBERS 

Program CENRAP Suggested 

Riverside Station 

Refined Analysis 

Version Level Version Level Reason for Difference

TERREL 3.311 030709 3.311 030709 

CTGCOMP 2.42 030709 2.22 030528 Version recommended is not 

available 

CTGPROC 2.42 030709 2.42 030709 

MAKEGEO 2.22 030709 2.22 030709 

CALMM5 2.4 050413 2.4 050413 

CALMET 5.53a 040716 6.211 060414 Most recent release of 

CALMET 

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060410 Use version compatible with 

CALPUFF 6.112 

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• • 2.2 MODELING DOMAIN • Trinity utilized a modeling domain that extends at least 50 km in all directions beyond the Riverside 

Station and each ofthe four surrounding Class I areas. The map projection for the modeling domain 

is Lambert Conformal Conic (LCC) and the coordinate system will be North American Datum 1927 

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(NAD27), which is an LCC projection. The meteorological grid spacing is 3 km. •

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assigned as the 0, 0 reference point for the domain. The northeast comer ofthe modeling domain is 

approximately Latitude 37.25°N, Longitude 92°W. At a grid spacing of3 km, the number ofX grid 

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Figure 2-1 provides a plot ofthe modeling domain with respect to the sources and Class I areas. 

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FIGURE 2-1. PROPOSED MODELING DOMAIN 

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Tulsa OK Fayettevine .AR 

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For the purposes ofthis analysis, the CALMET and CALPUFF domains are identical for each 

analysis and are singularly referred to herein as the "domain." 
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The horizontal domain is comprised of grid cells, each containing a central grid point at which 

meteorological and computational parameters are calculated at each time step. For this analysis, grid 

spacing intervals of3 kIn are selected to resolve terrain features within the domain. Table 2-2 

summarizes the vertical grid structure selected for both analyses. The cell face height of each cell 

indicates its vertical extent. The vertical domain is also composed ofterrain-following grid cells, the 

number and size ofwhich are chosen so as to constrain the boundary layer in which dispersion and 

chemical transformations take place. 

TABLE 2-2. VERTICAL GRID STRUCTURE 

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3. CALMET 


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CALPUFF. The CALMET model requires the input of geophysical data, meteorological data, and 

model parameter settings. The CALMET modeling procedures that Trinity used generally follows 

the recommendations in CENRAP's protocol. It should be noted that Trinity used surface and

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precipitation data but not upper air observations in this CALMET analysis. As a result, some of 

CENRAP's recommendations may not apply.

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CALMET requires geophysical data to characterize the terrain and land use parameters that 

potentially affect dispersion. Terrain features affect flows and create turbulence in the atmosphere 

and are potentially subjected to higher concentrations of elevated puffs. Different land uses exhibit 

variable characteristics such as surface roughness, albedo, Bowen ratio, and leaf-area index that also 

effect turbulence and dispersion. 

3.1.1 TERRAIN DATA

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degree (1:250,000 scale or approximately 90 meter resolution) digital format. A list of the 

USGS terrain files used in the analyses is provided in Appendix B. A plot of the land •

elevation for the modeling domain based on the referenced files is provided in Figure 3-1. •

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FIGURE 3-1. PLOT OF MODELING DOMAIN USGS TERRAlN DATA 

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Trinity used the TERREL program to generate grid-cell elevation averages from the USGS 

terrain data across the modeling domain. 

3.1.2 LAND USE DATA 

Trinity used USGS Composite Theme Grid (CTG) format Land Use and Land Cover 

(LULC) data files at I:250,000 resolutions. Where I:250,000 land use data was not 

available, Trinity used USGS data at I: 100,000 resolutions. A list of the USGS land use 

files that were used is provided in Appendix B. 

Trinity used the CTGPROC program to generate land use for each grid cell from the LULC 

data across the modeling domain. Since the USGS CTG format LULC data files must be 

compressed prior to use in the CTGPROC utility processor, Trinity compressed the files 

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FIGURE 3-2. PLOT OF MODELING DOMAIN LAND USE LAND COVER DATA 

Lambert Conformal Conic (X) (km) 

3.2 METEOROLOGICAL DATA 

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CALMET was used to assimilate data for 200 I, 2002, and 2003 using mesoscale model output and 

National Weather Service (NWS) surface station observations, upper air station observations, and 

precipitation station observations to develop the meteorological field. •

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3.2.1 MESOSCALE MODEL DATA 

Hourly mesoscale data was used to supplement the hourly surface, upper air, and 

precipitation observation data. The mesoscale data was used to define the initial guess 

field for the CALMET simulations. Trinity used the following 5th generation mesoscale 

model meteorological data (or MM5 data): 

... 2001 MM5 data (12 Ian resolution), 

... 2002 MM5 data (36 Ian resolution), and 

... 2003 MM5 data (36 Ian resolution) 

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provides a substantial enhancement over the steady-state treatment ofobservations from a 

single meteorological station. Parameters affecting turbulent dispersion that are observed 

hourly at surface stations include wind speed and direction, temperature, cloud cover and 

ceiling, relative humidity, and precipitation type. Surface data were extracted from among 

the surface stations listed in Appendix B and are illustrated in Figure 3-3. These sources 

were selected from the available data inventory to optimize spatial coverage and 

representation of the domain. Raw observations from these stations were obtained from 

the National Climatic Data Center (NCDC), quality assured and were merged using the 

SMERGE pre-processor to create a single assimilated data file of surface observations for 

each year analyzed. 

FIGURE 3-3. PLOT OF SURFACE STATIONS 

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100 

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--Oo~---- ....-------­

WICHIT 

. 	 . <I)' lNOEPE MEDICI JOPlin~t!l15' 

, Hercules-Glades • • I SiltING OOAA I SENECA

I • 	 . . . • I i RIVERS GREAT BARTLE NOWATA 9tJLLSf 

. 	 . NORFOlj

WAYNQK ) 

PAWNEE e , I . . OILIJ,\lISl\;l.OK TU.S", MARSH"nllLw I AEP -Riverside • I . GIUlER • PAIm<E 

. STP~ 

<I) 	 I<USI<O<l 

PRECIPITATION DATA 

The effects of chemical transfonnations and deposition processes on ambient pollutant 

concentrations were considered in this analysis. Therefore, it was necessary to include 

observations of precipitation in the CALMET analysis. The precipitation stations from 

which Trinity extracted data are listed in Appendix B. The locations of the precipitation 

stations with respect to the modeling domain are shown in Figure 3-4. These stations were 

selected from the available data inventory to optimize spatial coverage and representation 

ofthe domain. Data from the stations were processed for use in CALMET using Version 

5.31, Level 030528 ofEPA's PMERGE program. 

FIGURE 3-4. PLOT OF PRECIPITATION STATIONS 

GEAAPklahomaqtty_OK FORTS ..u. ElKCI I 	 No"!,~K "'.,"" 

. . WP4.,ORO

, MCAlES BENGAl 

CanJ:,creek . . 	 I PINES

. LEHIGH 


CHIlDR 
 . cANEy AROMOR 

.......",. 

. t PRESCO 

MI.1.WO CAMDEN i 

cLAAAS ~ISY .CAl1ON 

----.---,,­ ----=~I FRISco ~~Jr.IOU}(f 

o 	 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 

Lambert Conformal Conic (Xl (km1 

3.3 CALMET PROCESSING CONTROL 

Table 3-1 provides a Iistmg of the CALMET parameters that Trinity used in the Riverside Station's 

modeling analysis. In addition to the parameters that were used for the Riverside Station's modeling, 

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to be used is different than what CENRAP recommended, a short explanation as to the difference is 

proved. Note that most ofthe differences from CENRAP's recommended parameters are due to the •

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TABLE 3-1. SUMMARY OF CALMET INpUTS

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CALMET Variable 

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Description 

Value Included in 

CENRAP Protocol 

Value Trinity 

Used Notes 

NUSTA Number of upper air 

data sites 

0 0 Only surface and 

precipitation 

observations were 

used 

NOWSTA Number of overwater 

data sites 

0 0 

mYR Starting year 2001 Appropriate 

met year 

Years 2001, 2002, 

2003 

mMO Starting month 1 Appropriate Due to file size, 

month analysis was 

completed by month 

mHR Starting hour 1 1 

mTZ Base time zone 6 6 

IRLG Length ofrun 8736 Varies with Due to file size, 

month analysis was 

completed by month 

IRTYPE Run type (1 for 

CALPUFF) 

1 1 

LCALGRD Compute CALFRID F F 

data fields (T run 

CALGRID) 

ITEST Stop run after SETUP 

to do input QA (2 

run) 

2 2 

PMAP Map projection LCC LCC 

RLATO Latitude (decimal 40N 33.25N Appropriate for 

degrees) ofprojection domain 

origin 

RLONO Longitude (decimal 97W 100.5W Appropriate for 

degrees) ofprojection domain 

origin 

XLATl Latitude of 1SI 

standard parallel 

33N 33N Appropriate for 

domain 

XLAT2 Latitude of 2nd 

standard parallel 

45N 40N Appropriate for 

domain 

DATUM Datum region for WGS-G WGS-G Selected datum to 

output coordinates match datum of •

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CALMET Variable Description 

Value Included ill 

CENRAP Protocol 

Value Trinity 

Used Notes 

NX Number ofX grid 

cells in 

meteorological grid 

300 256 Appropriate for 

domain 

NY Number ofY grid 

cells in 

meteorological grid 

192 155 Appropriate for 

domain 

DGRIDKM Grid spacing (km) 6.0 3.0 Refmedgrid 

spacing 

XORIGKM Ref. coordinate of 

SW comer of grid 

cell 

-1008 0 Appropriate for 

domain 

YORIGKM Ref. coordinate of 

SW comer ofgrid 

cell 

0.0 0 Appropriate for 

domain 

NZ Number of vertical 

layers 

10 10 

ZFACE Vertical cell face 

heights (NZ + 1 

values) 

0,20,40,80, 160, 

320,640,1200,2000, 

3000,4000 

0, 20, 40, 80, 

160,320,640, 

1200,2000, 

3000,4000 

LSAVE Save met. data fields 

in an unformatted 

file? 

T T 

IFORMO Type of unformatted 

output file (I for 

CALPUFF) 

1 1 

LPRINT Print met. fields F F 

IPRINF Print intervals 1 I 

IUVOUT(NZ) Specify layers of u,v 

wind components to 

print 

NZ*O NZ*O 

IWOUT(NZ) Specify layers of w 

wind component to 

print 

NZ*O NZ*O 

ITOUT(NZ) Specify layers 000 

temperature field to 

print 

NZ*O NZ*O 

LOB Print met data and 

variables 

F F 

NNI 

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printed 

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CALMET Variable DescriPtion 

Value Included in 

CENRAP Protocol 

Value Trinity 

Used Notes 

NN2 Last time step for 

debug data to be 

printed 

1 2 Generated debug 

data for a total of 2 

time steps 

IOUTD Control variable for 

writing teslldebug 

wind fields 

0 0 

NZPRN2 Number of levels 

starting at surface to 

print 

0 I Default 

IPRO Print interpolated 

wind components 

0 0 

IPRI Print terrain adjusted 

surface wind 

components 

0 0 

IPR2 Print initial 

divergence fields 

0 0 

IPR3 Print final wind speed 

and direction 

0 0 

IPR4 Print final divergence 

fields 

0 0 

IPR5 Print winds after 

kinematic effects 

0 0 

IPR6 Print winds after 

Froude number 

adjustment 

0 0 

IPR7 Print winds after 

slope flows are added 

0 0 

IPR8 Print fmal wind field 

components 

0 0 

NOOBS No observation mode 

(2 = No surface, 

overwater, or upper 

air observations; use 

MM5 for surface, 

overwater, and upper 

air data) 

2 1 Used surface and 

precipitation 

observations only 

NSSTA Number of 

meteorological 

stations in 

SURF.DAT file 

0 47 Number of stations 

NPSTA 

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precipitation stations 

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0 135 Number of stations 

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CALMET Variable Description 

Value Included in 

CENRAP Protocol 

Value Trinity 

Used Notes 

ICLOUD Gridded cloud fields 

(0 no, 3 =Gridded 

cloud cover from 

prognostic relative 

humidity) 

3 3 

IFORMS Format ofsurface 

data (2 formatted) 

2 2 

IFORMP Format of 

precipitation data (2 

= formatted) 

2 2 

IFORMC Format of cloud data 

(2 =formatted) 

2 1 N/A - No cloud data 

used in model 

IWFCOD Generate winds by 

diagnostic wind 

module? (1 = yes) 

1 1 

IFRADJ Adjust winds using 

Froude number 

effects? (1 = yes) 

1 1 

IKINE Adjust winds using 

kinematic effects? (0 

= no) 

° 1 Computed 

kinematic effects in 

this analysis 

IOBR Use O'Brien 

procedure for vertical 

winds? (0 = no) 

° ° 

ISLOPE Compute slope 

flows? (1 = yes) 

1 1 

IEXTRP Extrapolate surface 

winds to upper layers 

(-1 no extrapolation 

and ignore layer 1 of 

upper air station data) 

-1 -1 

ICALM Extrapolate surface 

winds even if calm? 

(0 no) 

° ° 

BIAS Layer dependent 

biases weighting aloft 

measurements 

0,0,0,0,0,0,0,0,0, 

° 

0, 0, 0, 0,0, 0, 

0,0,0,0 

RMlN2 

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extrapolation distance 

Distance (km) around 

an upper air site 

where vertical 

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CALMET Variable Description 

Value Included in 

CENRAP Protocol 

Value Trinity 

Used Notes 

extrapolation is 

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IEXTRP ± 4) 

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IPROG Using prognostic or 

MM-FDDA data? (14 

Use winds from 

MM5.DAT as initial 

guess wind field) 

14 14 

ISTEPPG Timestep (hours) Of 

theMM5 data 

1 1 

LVARY Use varying radius of 

influence to develop 

surface winds? 

T T Use FLAG default 

RMAXI Maximum radius of 

influence over land in 

surface layer (lan) 

30 100 As included in 

IWAQM Phase 2 

case study 

RMAX2 Maximum radius of 

influence over land 

aloft (lan) 

30 500 As included in 

IWAQMPhase2 

case study 

RMAX3 Maximum radius of 

influence over water 

(lan) 

50 36 Same as MM5 data 

spacing 

RMIN Minimum radius of 

influence used 

anywhere (km) 

0.1 0.1 

TERRAD Radius ofinfluence 

ofterrain features 

(lan) 

12 12 

Rl Weighting of first 

guess surface field 

(lan) 

1 . 50 As included in 

IWAQM Phase 2 

case study 

R2 Weighting of first 

guess aloft field (lan) 

1 100 As included in 

IWAQM Phase 2 

case study 

RPROG MM5 windfield 

weighting parameter 

(lan) 

0 0 

DIVLIM Maximum acceptable 

divergence 

5.E-6 5.E-6 

NITER Max number of 

passes in divergence 

minimization 

50 50 

NSMMTH 

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CALMET Variable Description 

Value Included in 

CENRAP Protocol 

Value Trinity 

Used Notes 

through smoothing 

filter in each layer of 

CALMET(NZ 

values) 

4,4,4,4 

NITR2 Max number of 

stations used in each 

layer for the 

interpolation ofdata 

to a grid point (NZ 

values) 

5,5,5,5,5, 5, 5, 5, 5, 

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5,5, 5, 5, 5, 5, 

5, 5, 5, 5 

CRlTFN Critical Froude 

number 

1.0 LO 

ALPHA Kinematic effects 

parameter 

0.1 0.1 

FEXTR2 Scaling factor for 

extrapolating surface 

winds aloft 

NZ*O.O NZ*O.O 

NBAR Number of terrain 

barriers 

0 0 

IDIOTPI Compute temperature 

from observations (0 

= true) 

0 0 

ISURFT Surface station to use 

for surface 

temperature (between 

1 and NSSTA) 

4 4 

IDIOPT2 Domain-averaged 

wind component 

switch 

0 0 

IUPT Station for lapse rates 

(between 1 and 

NUSTA) 

2 2 

ZUPT Depth through which 

lapse rate is 

calculated 

200 200 

IDIOPT3 Domain averaged 

wind component 

switch 

0 0 

IUPWND Upper air station for 

domain winds 

-1 -1 

ZUPWND Bottom and top of 

layer through which 

the domain scale 

1., 1000. 1.,1000. 

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CALMET Variable Description 

Value Included in 

CENRAP Protocol 

Value Trinity 

Used Notes 

winds are computed 

IDIOPT4 Observed surface 

wind component 

switch 

0 0 

IDIOPT5 Observed aloft wind 

component switch 

0 0 

LLBREZE Use lake breeze 

module? 

F F 

NBOX Number of lake 

breeze regions 

0 0 

NLB Number of stations in 

the region 

0 0 

METBXID(NLB) Station IDs in the 

region 

0 0 

CONSTB Neutral stability 

mixing height 

coefficient 

l.4l l.4l 

CONSTE Convective stability 

mixing height 

coefficient 

0.15 0.15 

CONSTN Stable stability 

mixing height 

coefficient 

2400 2400 

CONSTW Overwater mixing 

height coefficient 

0.16 0.16 

FCORIOL. Absolute value of 

Coriolis parameter 

l.E-4 1.E-4 

IAVEZI Conduct spatial 

averaging? (1 

=yes) 

1 1 

MNMDAV Max search radius in 

averaging process 

(number of grid cells) 

10 10 

HAFANG Half-angle ofupwind 

looking cone for 

averaging (degrees) 

30 30 

ILEVZI Layers of wind use in 

upwind averaging 

(between 1 and NZ) 

1 1 

DPTMIN Minimum potential 

temperature lapse rate 

in the stable layer 

above the current 

convective mixing 

0.001 0.001 

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CALMET Variable Description 

Value Included in 

CENRAP Protocol 

Value Trinity 

Used Notes 

height 

DZZI Depth of layer above 

current convective 

mixing height 

through which lapse 

rate is computed (m) 

200 

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ZIMIN Minimum 0 

mixing hei 

50 50 

ZIMAX Maximum 

mixing height (m) 

3000 3000 

ZIMINW Minimum overwater 

mixing height (m) 

50 50 

ZIMAXW Maximum overwater 

missing height (m) 

3000 3000 

ITPROG 3D temperature from 

observations or from 

MM5? 

2 1 Used surface 

observations and 

precipitation data 

IRAD Type ofinterpolation 

(1 = lIr) 

1 1 

TRADKM Temperature 

interpolation radius 

of influence (km) 

36 36 

NUMTS Max number of 

stations for 

temperature 

interpolations 

5 5 

IAVET Spatially average 

temperature? (I = 

yes) 

I 1 

TGDEFB Temperature gradient 

below the mixing 

height over water 

(KIm) 

-.0098 -0.0098 

TGDEFA Temperature gradient 

above the mixing 

height over water 

(KIm) 

-.0045 -0.0045 

JWATl Beginning land use 

categories over water 

55 55 

JWAT2 Ending land use 

categories for water 

55 55 

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NFLAGP Precipitation 

interpolation flag (2 = 

II?) 

SIGMAP Radius of influence 

for precipitation 

interpolation (km) 

CUfP Minimum 

precipitation rate cut 

off(mmIhr) 

Value Included in 

CENRAP Protocol 

2 

50 

0.01 

Value Trinity 

Used 

2 

50 

0.01 

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meteorological data output by CALMET, source emissions data, receptor data, ozone and ammonia 

data, and model parameter settings. 

4.1 BART-ELIGmLE SOURCES 

As a fossil fuel-fired steam generating unit with a combined total ofmore than 250 MMBtu/hr heat 

input and a PTE of greater than 250 tpy, the Riverside Power Station is considered BART-eligible. In 

order to determine what specific units constitute the "BART-eligible" source, the construction dates 

of each ofthe station's units must be examined. A summary is provided below. 

TABLE 4-1. BOILER CONSTRUCTION DATE SUMMARY 

Unit No. Name Construction Date 

A-I Babcock & Wilcox 1971 

A-2 Babcock & Wilcox 1971 

Based upon the construction dates listed above, each ofthe boilers at the Riverside Power Station can 

be considered BART-eligible. 

4.2 SOURCE EMISSIONS DATA 

Trinity included emissions of S02, NOl(' and PM10 in the model. For source-specific analyses, 

CENRAP has suggested several sources of emission data in the foHowing priority:' 

... Continuous Emission Monitoring (CEM) data, for period 2001-03 


... CEM data for 2002 


... Actual 2002 emission rates in state emission inventories 


... Emission factors from AP-42 source profiles 


... Permit allowable emissions, or 


... Potential to emit 


Modeled emissions are obtained from CEMS data from 2001-05 and are based on the highest hourly 

emission rate (based on a 24-hour average) thatoccurred over that period. A detailed summary of 

emission rates and source data is included in Appendix A. Table 4-2 provides a summary ofthe . 

modeled emission rates. 

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TABLE 4-2. ESTIMATED 24-HOURAVERAGE EMISSION RATES 

Unit ID NO. PM10 S02 

lbs/hr Ibs/hr Ibs/hr 

1 1,135.30 46.52 3.72 

2 961.20 31.74 2.54 

4.2.1 PMIO EMISSIONS 

PMIO emissions are not directly entered into the model but are instead input as its coarse and flne 

constituents. The PMIO emissions from the boilers are speciated according to the Federal Land 

Managers' guidance to include the following: 2 

.A Coarse particulate matter (pMC, considered PM2.5-1O) 

.A Fine particulate matter (PMF, considered PM<2.5) 

.A Sulfates (S04) 

.A Secondary organic aerosols (SOA) 

.A Elemental carbon (EC) 

Based upon FLM guidance, PMIO etnissions from natural gas combustion consists ofprimarily coarse 

(25%) and fme (75%) particulate matter. A summary of speciated PMIO emissions is presented in 

Table 4-3. 

TABLE 4-3. SPECIATED PM10 EMISSIONS 

UnitID PM (coarse) PM (rme) 

lbs/hr Ibslhr 

1 11.63 34.89 

2 7.94 23.81 

4.2.2 STACK PARAMETERS 


Table 4-4 provides a summary of source exhaust parameters as listed in Permit No. 2003-360-TVR, 


issued by the Oklahoma DEQ. 

TABLE 4-4. POINT SOURCE STACK PARAMETERS 

Emission Latitude Longitude Exit Stack Stack Exit 

unit (degrees) (degrees) Velocity Height Diameter Temperature 

(ft/s) (feet) (feet) (Fahrenheit) 

I 35.997731 95.956234 53.40 300 18.0 249 

2 35.996664 95.955994 53.40 300 18.0 249 

2 http://www2.nature.nps.gov/airlPennitsiectlectGasFiredCT.cfin 

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Base elevation of each ofthe units is 186 meters (610 feet) above MSL based upon visual inspection 

ofUSGS topographic maps. 

4.3 RECEPTOR LOCATIONS 

The National Park Service (NPS) has electronic files for each Class I area available on their website 

containing the locations and elevations of discrete Class I area receptors. The receptor files for Caney 

Creek Wilderness, Hercules-Glades Wilderness, Upper Buffalo Wilderness, and Wichita Mountains 

Wildlife Refuge were downloaded from the NPS website, converted into the LCC NAD27 projection, 

and incorporated into the CALPUFF modeL Receptor locations for these Class I areas are shown in 

Figures 4-1 to 4-4. 

FIGURE 4-1.WICHITA MOUNTAINS WILDERNESS RECEPTOR LOCATIONS 

Wichita Mountains Wilderness within Wichita Mountains NWR 

59 Recepto rs 

FWS Wilderness Boundary Source: 

Region 2 GIS 

500 Gold Ava,. SW 

PO Box 1306 

Albuquerque, NM 87103 

FWS NWR Boundary Source: 

http://WMN,fw5,govld atalr2 gislb ou oda ry ,hIm I 

Septem ber 18, 2003 

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FIGURE 4-2. CANEY CREEK WILDERNESS RECEPTOR LOCATIONS 

Caney Creek Wilderness 

aD Receplor. 

USFS Boundary Source: 

FS Na~onal Coverage ile: 

NR IS - ALP ~roup

Corvallis, 0 

August 22,2003 

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FIGURE 4-3. HERCULES-GLADES WILDERNESS RECEPTOR LOCATIONS 

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USFS Boundary Source: 

FS National Coverage file: 

NRIS - .ALP group 

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FIGURE 4-4. UPPER BUFFALO WILDERNESS RECEPTOR LOCATIONS 

Background ozone concentrations are required in order to model the photochemical conversion of 

S02 and NOx to sulfates (S04) and nitrates (N03). CALPUFF can use either a single background 

value representative of an area or hourly ozone data from one or more ozone monitoring stations. 

CENRAP recommends either developing background ozone estimates from ambient monitors located 

within the particular domain being modeled or developing background ozone estimates from 

CENRAP's most recent CMAQ or CAMx sinlulation for the 2002 base year. Since the data from 

CENRAP's CMAQ and CAMx simulations is not readily available, Trinity used 40 ppb as the 

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USFS Boundary Source: 

FS National C0\1 erage file: 

NRIS- ALP group 

Corvallis, OR 

Aug usl 22,2003 

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background value. This background concentration is the value included in CENRAP's protocol as a 

default background value for the CENRAP region. 

4.5 BACKGROUND AMMONIA 

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ammonium nitrates. CENRAP recommends developing background ammonia estimates from •

• CENRAP's most recent CMAQ or CAMx simulation for the 2002 base year. Since CMAQ/CAMx 

modeled and observed monthly averaged ammonia concentrations exhibit wide spatial variability, •

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CENRAP recommends obtaining separate monthly-averaged ammonia concentrations from CMAQ 

or CAMx for the CENRAP north, central and south modeling domains, respectively. These would 

then be used as input to CALPUFF. Since the data from CENRAP's CMAQ and CAMx simulations 

is not readily available, Trinity used a m~nthly background concentration of 3 ppb. This background •

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4.6 CALPUFF MODEL CONTROL PARAMETERS 

Table 4-5 provides a listing of the CALPUFF parameters that Trinity used in PSO's modeling

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CENRAP's recommended parameters for comparison. In cases where a parameter to be used is 

different than what CENRAP recommended, a short explanation as to the difference is provided. 

TABLE 4-5. SUMMARY OF CALPUFF INpUTS •

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CALPUFF Value Included in 

Variable Description CENRAP Protocol Value Trinity Used 

METRUN All model periods 0 0 

in met files will be 

run 

mYR Starting year 2001 Appropriate met year 

mMO Starting month 1 1 

mDY· Starting day 1 1 

mHR Starting hour 1 1 

XBTZ Base time zone (6 6 6 

= CST) 

IRLG Length of run 8760 8760 

NSPEC Number of 10 10 

MESOPUFF II 

chemical species 

NSE Number of 8 4 

chemical species 

to be emitted 

ITEST Program is 2 2 

Notes 

Years 2001, 2002, 

2003 

Adjusted to fit 

emission profile of 

facility 

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Variable Description 

Value Included in 

CENRAP Protocol ' Value Trinity Used Notes 

executed after 

SETUP phase 

MRESTART Do not read or 

write a restart file 

during run 

0 0 

NRESPD File written only at 

last period 

0 0 

METFM CALMET binary 

file 

(CALMET.MET) 

I I 

ET Averaging time in 

minutes 

60 60 

PGTIME PG Averaging 

time in minutes 

60 60 

MGAUSS Gaussian 

distribution used 

in near field 

I I 

MCTADJ Partial plume path 

terrain adjustment 

3 3 

MCTSG Sub-grid-scale 

complex terrain 

not modeled 

0 0 

MSLUG Near-field puffs 

not modeled as 

elongated 

0 0 

MTRANS Transitional plume 

rise modeled 

I I 

MTIP Stack tip 

downwash used 

I I 

MSHEAR (0, 1) Vertical 

wind shear (not 

modeled, 

modeled) 

0 0 

MSPLIT Puffs are not split 0 I Allowed for puff 

splitting due to 

significant sourcereceptor distances 

MCHEM MESOPUFFII 

chemical 

parameterization 

scheme 

1 I 

MAQCHEM Aqueous phase 

transformation not 

0 0 

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CALPUFF 

Variable Description 

Value Included in 

CENRAP Protocol Value Trinity Used Notes 

modeled 

MWET Wet removal 

modeled 

I I 

MDRY Dry deposition 

modeled 

I I 

MDISP PG dispersion 

coefficients 

3 3 

MTURBVW Use both O'v and 

O'w from 

PROFILE.DAT to 

compute O'y and 0'. 

(n/a) 

3 3 

MDISP2 PG dispersion 

coefficients 

3 3 

MROUGH PG O'y and 0'. not 

adjusted for 

roughness 

0 0 

MPARTL No partial plume 

penetration of 

elevated inversion 

I 1 

MTINV Strength of 

temperature 

inversion 

computed from 

default gradients 

0 0 

MPDF PDF not used for 

dispersion under 

convective 

conditions 

0 0 

MSGTIBL Sub"grld TIBL 

module not used 

for shoreline 

0 0 

MBCON Boundary 

concentration 

conditions not 

modeled 

0 0 

MFOG Do not configure 

for FOG model 

output 

0 0 

MREG 

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must conform to 

USEPA Long 

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CALPUFF 

Variable Description 

Value Iricluded in 

CENRAP Protocol Value Trinity Used Notes 

'dance 

CSPEC CENRAP PSO - Riverside 

Output 

Group 

Species Modeled Emitted 

Dry 

Deposition 

Output 

Group r-I M~elu 

N . 

Emitted 

I 

Dry 

Deposition 

S02 I I I I

S04 I 0 2 0 2 

NOX I I I I I 

HN03 I 0 1 HN03 I 0 I 

N03 I 0 2 N03 I 0 2 

~ 1 1 NH3 1 1 I 

1 2 PMC 1 1 2 

1 2 PMF I 1 2 

EC I I 2 EC I I 2 

SOA 1 I 2 SOA 1 I 2 

PMAP .Map proiection UTM LCC 

NX Number ofX grid 

cells in 

meteorological 

grid 

66 256 Based on refmed grid 

parameters as 

specified in 

CALMETruns 

NY Number ofY grid 

cells in 

meteorological 

grid 

66 155 Based on refmed grid 

parameters as 

specified in 

CALMETruns 

NZ Number ofvertical 

layers in 

meteorological 

grid 

10 10 

DGRIDKM Grid spacing (km) 6 3 Refmed grid size 

ZFACE Cell face heights 

in meteorological 

grid (m) 

0, 20, 40, 80, 160, 

320,640,1200,2000, 

3000,4000 

0,20,40, 80, 160, 

320,640, 1200, 

2000,3000,4000 

XORIGKM Reference X 

coordinate for SW 

corner of grid cell 

of meteorological 

grid (kIn) 

5 0 Appropriate for 

domain (refined grid) 

YORIGKM Reference Y 

coordinate for SW 

corner ofgrid cell 

ofmeteorological 

3327 0 Appropriate for 

domain (refmed grid) 

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CALPUFF 

Variable Description 

grid (kIn) 

IUTMZN UTM zone of 

coordinates 

(NAD83) (Use 

only ifpMAP= 

UTM) 

IBCOMP X index of lower 

left comer of the 

computational grid 

JBCOMP Y index of lower 

left comer of the 

computational 

grids 

IECOMP X index ofupper 

right comer of the 

computational grid 

JECOMP Y index ofupper 

right comer of the 

computational grid 

LS Sampling grid is 

not used 

msAMP X index of lower 

left comer of 

sampling grid 

JBSAMP Y index oflower 

left comer of 

sampling grid 

IESAMP X index of upper 

right comer of 

sampling grid 

JESAMP Y index of upper 

right corner of 

sampling grid 

MESHDN Nesting factor of 

sampling grid 

ICON Output file 

CONC.DAT 

containing 

concentrations is 

created 

IDRY Output file 

DFLX.DAT 

containing dry 

Value Included in 

CENRAP Protocol 

12 

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I 

66 

66 

F 

1 

I 

66 

66 

1 

1 

1 

4-10 

Value Trinity Used 

14 

1 

1 

256 

155 

F 

1 

1 

256 

155 

1 

1 

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Notes 

N/A,LCC 

coordinates used 

Appropriate for 

domain (refmed grid) 

Appropriate for 

domain (refined grid) 

Appropriate for 

domain (refmed grid) 

Appropriate for 

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Variable Description 

Value InCluded in 

CENRAP Protocol Value Trinity Used Notes 

fluxes is created 

IWET Output file 

WFLX.DAT 

containing wet 

fluxes is created 

I I 

IVIS Output file 

containing relative 

humidity data is 

created 

I I 

LCOMPRS Perform data 

compression in 

output file 

T T 

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IMFLX Do not calculate 

mass fluzes across 

specific 

boundaries 

0 0 

IMBAL Mass balances for 

each species not 

reported hourly 

0 0 

ICPRT Print concentration 

fields to output list 

file 

I I 

IDPRT Do not print dry 

flux fields to 

output list file 

0 0 

IWPRT Do not print wet 

flux fields to 

output list file 

0 0 

ICFRQ Concentration 

fields are printed 

to output list file 

every hour 

I I 

IDFRQ Dry flux fields are 

printed to output 

list file every 1 

hour 

I 1 

IWFRQ Wet flux fields are 

printed to output 

list file every I 

hour 

1 I 

IPRTU Units for line 

printer output are 

in g/m3 for 

3 3 

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CALPUFF 

Variable Description 

Value Included in 

CENRAP Protocol Value Trinity Used Notes 

concentration and 

g/m2/s for 

deposition 

!MESO Messages tracking 

the progress of run 

written to screen 

2 2 

LDEBUO Logical value for 

debug output 

F F 

IPFDEB First puff to track I 1 

NPFDEB Number of puffs 

to track 

I 1 

NNl Meteorological 

period to start 

output 

1 I 

NN2 Meteorological 

period to end 

output 

10 10 

NHILL Number of terrain 

features 

0 0 

NCTREC Number ofspecial 

complex terrain 

receptors 

0 0 

MHILL Input terrain and 

receptor data for 

CTSO hills input 

in CTDM format 

2 2 

XHILL2M Conversion factor 

for changing 

horizontal 

dimensions to 

meters 

I I 

ZHILL2M Conversion factor 

for changing 

vertical 

dimensions to 

meters 

1 1 

XCTDMKM X origin of CTDM 

system relative to 

CALPUFF 

coordinate system 

(km) 

0 0 

YCTDMKM Y origin ofCTDM 

system relative to 

0 0 

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Variable Description 

Value Included in 

CENRAP Protocol Value Trinity Used Notes 

CALPUFF 

coordinate system 

(km) 

S02 Diffusivity 0.1509 0.1509 

Alpha star 1000 1000 

Reactivity 8 8 

Mesophyll 

resistance 

0 0 

Henry's Law 

coefficient 

0.04 0.04 

NOX Diffusivity 0.1656 0.1656 

Alpha star 1 I 

Reactivity 8 8 

Mesophyll 

resistance 

5 5 

Henry's Law 

coefficient 

3.5 3.5 

HN03 Diffusivity 0.1628 0.1628 

Alpha star 1 1 

Reactivity 18 18 

Mesophyll 

resistance 

0 0 

Henry's Law 

coefficient 

8.0e-8 " 8.0e-8 

S04-2 Geomatric mass 

mean diameter of 

S04-2 (/.lm) 

0.48 0.48 

N03­ Geometric mass 

mean diameter of 

N03- (/.lm) 

0.48 0.48 

PMC 

PMF 

Geometric mass 

mean diameter of 

PMC (1J.Dl) 

6 6 

Geometric mass 0.48

mean diameter of 

PMF (1J.Dl) 

0.48 

EC Geometric mass 

mean diameter of 

EC (/.lm) 

0.48 0.48 

SOA Geometric mass 

mean diameter of 

SOA (/.lm) 

0.48 0.48 

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Variable Description 

Value Incl 

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RCUTR Reference cuticle 

I resistance (s/cm) 

30 30 

RGR Reference ground 

resistance (s/cm) 

10 10 

REACTR Reference 

pollutant reactivity 

8 8 

NINT Number of particle 

size intervals for 

effective particle 

deposition velocity 

9 9 

IVEG Vegetation in nonirregated areas is 

active and 

unstressed 

I 1 

S02 Scavenging 

coefficient for 

liquid precipitation 

(S·I) 

3.21E-05 3.21E-05 

Scavenging 

coefficient for 

frozen 

precipitation (S·I) 

0 0 

S04-2 Scavenging 

coefficient for 

liquid precipitation 

(S·l) 

1.0E-04 1.0E-04 

Scavenging 

coefficient for 

frozen 

precipitation (S·l) 

3.0E-05 3.0E-05 

RN03 Scavenging 

coefficient for 

liquid precipitation 

(S·I) 

6.0E-05 6.0E-05 

Scavenging 

coefficient for 

frozen 

precipitation (S·I) 

0 0 

N03­ Scavenging 

coefficient for 

liquid precipitation 

(S·l) 

1.0E-04 1.0E-04 

Scavenging 3.0E-05 3.0E-05 

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Variable Description 

Value Included in 

CENRAP Protocol Value Trinity Used Notes 

coefficient for 

frozen 

precipitation (S·I) 

NIB Scavenging 

coefficient for 

liquid precipitation 

(S-I) 

8.0E-05 NA 

Scavenging 

coefficient for 

frozen 

precipitation (S·I) 

0 NA 

PMC Scavenging 

coefficient for 

liquid precipitation 

(S·l) 

I.OE-4 1.0E-4 

Scavenging 

coefficient for 

frozen 

precipitation (S·l) 

3.0E-05 3.0E-05 

PMF Scavenging 

coefficient for 

liquid precipitation 

(S·I) 

1.0E-04 ~ 

1.0E-04 

Scavenging 

coefficient for 

frozen 

precipitation (S·I) 

3.0E-05 3.0E-05 

EC Scavenging 

coefficient for 

liquid precipitation 

(S·l) 

1.0E-04 1.0E-04 

Scavenging 

coefficient for 

frozen 

precipitation (S-I) 

3.0E-05 3.0E-05 

DC Scavenging 

coefficient for 

liquid precipitation 

(S-I) 

1.0E-04 1.0E-04 

Scavenging 

coefficient for 

frozen 

precipitation (S-I) 

3.0E-05 3.0E-05 

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CALPUFF 

Variable Description 

Value Included in 

CENRAP Protocol Value Trinity Used Notes 

MOZ Read ozone 

background 

concentrations 

from ozone.dat file 

(measured values) 

1 ° Used monthly 

background ozone 

value 

BCK03 Background ozone 

concentration 

(ppb) 

12*40 12*40 

BCKNH3 Background 

ammoma 

concentration 

(ppb) 

12*3 12*3 

RNITEI Nighttime N02 

loss rate is o/olhour 

0.2 0.2 

RNITE2 Nighttime NOX 

loss rate is o/olhour 

2 2 

RNITE3 

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Nighttime HN03 

loss rate is o/olhour 

2 2 

MH202 Background H202 

concentrations 

1 ° Need to choose 

°in 

order to use monthly 

background value 

BCKH202 Background 

monthly H202 

concentrations 

I 12*1 

BCKPMF Fine particulate 

concentration for 

SOA option 

()lg/m3) 

I I 

OFRAC Organic fraction of 

fme particulate for 

SOA option 

.2 0.15,0.15,0.2,0.2,0.2, 

0.2,0.2,0.2,0.2,0.2, 

0.2,0.15 

Irrelevant, since 

MCHEM not equal to 

4 

VCNX VOC/NOX ratio 

for SOA option 

50 50 

SYDEP Horizontal size of 

a puff in meters 

beyond which the 

time dependant 

dispersion 

equation of Heffter 

is used 

550 550 

MHFTSZ Do not use Heffter 

formulas for sigma 

z 

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Variable Description 

JSUP Stability class used 

to detennine 

dispersion rates for 

puffs above 

boundary layer 

CONKI Vertical dispersion 

constant for stable 

conditions 

CONK2 Vertical dispersion 

constant for 

neutraVstable 

conditions 

TBD Use ISC transition 

point for 

detennining the 

transition point 

between the 

Schulman-Scire to 

Huber-Snyder 

Building 

Downwash 

scheme 

lURE1 Lower range of 

land use categories 

for which urban 

dispersion is 

assumed 

IURB2 Upper range of 

land use categories 

for which urban 

dispersion is 

assumed 

ILANDUIN Land use category 

for modeling 

domain 

T £' ea 

g domain 

ZOIN Roughness length 

in meters for 

modeling domain 

ELEVIN Elevation above 

sea level 

XLATIN North latitude of 

Value Included in 

CENRAP Protocol 

5 

0.01 

0.1 

0.5 

10 

19 

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* 

* -

Value Trinity Used 

5 

0.01 

0.1 

0.5 

10 

19 

* 

* 

* 

* -

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Variable Description CENRAP Protocol Value Trinity Used Notes 

station in degrees 

XLONIN South latitude of 

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ANEMHT 

station in degrees 

Anemometer 10 10 

height in meters 

ISIGMAV . Sigma-v is read 1 I 

for lateral 

turbulence data 

CTDM Predicted mixing 

heights are used 

0 0 

XMXLEN 

XSAMLEN 

Maximum length 

of emitted slug in 

meteorological 

grid units 

Maximum travel 

1 

10 

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10 

distance of slug or 

puffin 

meteorological 

grid units during 

one sampl' 

MXNEW Maximum number 60 60 

of puffs or slugs 

released from one 

MXSAM 

source during one 

time step 

Maximum number 60 60 

of sampling steps 

during one time 

step for a puff or 

slug 

NCOUNT Number of 2 2 

iterations used . when computing 

the transport wind 

for a sampling step 

that includes 

transitional plume 

rise 

SYMIN Minimum sigma y I 1 

in meters for a 

new puffor slug 

SZMIN Minimum sigma z 

in meters for a 

1 1 

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CALPUFF 

Variable Description 

Value Included in 

CENRAP Protocol Value Trinity Used Notes 

new puff or slug 

SVMIN Minimum lateral 

turbulence 

velocities (m/s) 

0.5 0.5,0.5,0.5,0.5,0.5, 

0.5,0.37,0.37,0.37, 

0.37,0.37,0.37 

SWMIN Minimum vertical 

turbulence 

velocities (m/s) 

0.20,0.12,0.08,0.06, 

0.03,0.016 

0.20,0.12,0.08, 

0.06,0.03,0.016, 

0.20,0.12, 0.08, 

0.06 0.03,0.016 

WSCALM Minimum noncalm wind speeds 

(m/s) 

0.5 0.5 

XMA.XZI Maximum mixing 

height (m) 

3000 3000 

XMINZI Minimum mixing 

height (m) 

20 20 

SL2PF Maxmium cry/puff 

length 

10 10 

PLXO Wind speed 

power-law 

exponents 

0.07,0.07,0.10,0.15, 

0.35,0.55 

0.07,0.07,0.10, 

0.15, 0.35, 0.55 

WSCAT Upper bounds of 

1

51 5 wind speed 

classes 

1.54,3.09,5.14,8.23, 

10.80 

1.54,3.09,5.14, 

8.23, 10.80 

PGGO Potential temp 

gradients PG E & 

F (deg/km) 

0.020,0.035 0.020,0.035 

CDIV Divergence 

criterion for dw/dz 

(l/s) 

O.oI 0.01 

PPC Plume path 

coefficients (only 

if MCTADJ = 3) 

0.5,0.5,0.5,0.5, 

0.35,0.35 

0.5,0.5,0.5,0.5, 

0.35,0.35 

NSPLIT Number of puffs 

when split 

3 3 

IRESPLIT Hours when puff 

is eligible to split 

1900 Hour 17 Should be by hour of 

day - 1900 is hour 17 

ZISPLIT Previous hours 

minimum mixing 

height, m 

100 100 

ROLDMAX Previous max 

mixing 

height!current 

height ratio, must 

0.25 0.25 
CALPUFF 

Variable Description 

Value included in 

CENRAP Protocol Value Trinity Used Notes 

be less than this 

value to allow puff 

to split I 

NSPLITH Number of puffs 

resulting from a 

split 

5 5 

SYSPLITH Minimum sigma-y 

ofpuff before it 

may split 

1.0 1.0 

SHSPLITH Minimum puff 

elongation rate 

from wind shear 

before puffmay 

split 

2.0 2.0 

CNSPLITH Minimum species 

concentration 

before a pluff may 

split 

I.OE-07 I.OE-07 

EPSSLUG Criterion for 

SLUG sampling 

1.0E-04 1.0E-04 

EPSAREA Criterion for area 

source integration 

I.OE-06 I.OE-06 

DSRISE Trajectory step 

length for 

numerical site 

algorithm 

1.0 1.0 

NPTl Number of point 

sources with 

constant stack 

parameters or 

variable emission 

rate scale factors 

Varies by scenario 2 Appropriate for 

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IPTU Units for point 

source emission 

rates are gls 

I 3 Used different units 

(3 = lb/hr) 

NSPTl Number of sourcespecies 

combinations with 

variable emissions 

scaling factors 

- -

NPT2 Number ofpoint 

sources with 

variable emission 

- -

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CALPUFF 

Variable Description 

Value lilcluded in 

CENRAP Protocol Value Trinity Used Notes 

parameters 

provided in 

external file 

MISC Other point source 

inputs include 

stack height, stack 

diameter, exit 

temperature, exit 

velocity, 

downwash flag 

and emissions by 

species 

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NARI Number of 

polygon area 

sources 

Varies by scenario 0 None modeled 

IARU Units for area 

source emission 

rates are g/m2/s 

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NSARI Number of source 

species 

combinations with 

variable emissions 

scaling factors 

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NAR2 Number of 

buoyant polygon 

area sources with 

variable location 

and emission 

parameters 

- -

NLN2 Number of 

buoyant line 

sources with 

variable location 

and emission 

parameters 

- 0 None modeled 

NUNES Number of 

buoyant line 

sources 

- -

ILNU Units for line 

source emission 

rates in gls 

- -

NSLNI Number of sourcespecies 

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CALPUFF 

Variable Description 

combinations with 

variable emissions 

scaling factors 

MXNSEG Maximum number 

of segments used 

to model each line 

NLRISE Number of 

distance at which 

transitional rise is 

om uted 

XL ge line 

source length (m) 

HBL Average height of 

line source height 

(m) 

WBL Average·building 

width (m) 

WML Average line 

source width (m) 

DXL Average 

separation 

between buildings 

(m) 

FPRIMEL Average buoyancy 

parameter (m4/s3) 

NYLl Number of vol""" A 

sources 

IVLU Units for volume 

source emission 

rates in 

grams/second 

NSVLl Number of sourcespecies 

combinations with 

variable emissions 

scaling factors 

IGRDVL Gridded volume 

source data is not 

used 

VEFFHT Effective height of 

emissions (m) 

VSIGYI Initial sigma-y 

value 

PSO 

Value Included in 

CENRAP Protocol 

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CALPUFF 

Variable Description 

Value Included in 

CENRAP Protocol Value Trinity Used Notes 

VSIGZI Initial sigma-z 

value 

- -

NREC Number of nongridded receptors 

5630 291 Corresponds to 

nearby Class I areas 

Receptor files as 

provided by NPS 

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• Trinity conducted a three-year CALPOST analysis to determine the change in light extinction caused 

by the Riverside Station's BART-eligible sources when compared to a natural background. The 

CALPOST model requires the input of concentration data output by CALPUFF. 

5.1 LIGHT EXTINCTION ALGORITHM 

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Trinity utilized EPA's currently approved algorithm for reconstructing light extinction (as opposed to 

the new equation for reconstructing light extinction recommended by the IMPROVE Steering 

Committee). The light extinction equation is provided below. 

bex! = 3*f(RH)*[(NH4)2S04] + 3*f(RH)*[NH4N03] + 4*[OC] + l*[PMf ] 

+ 0.6 *[PMc ] + lO*[EC] + bRay 

The algorithm was used to calculate the daily light extinction attributable to the Riverside Station's 

BART-eligible sources and light extinction attributable to a natural background. The change in 

deciviews based on the source and background light extinctions was evaluated using the equation 

below. 

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• !::. dv = 10* ext, background +bext, source 1 

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bext, background • 

5.2 CALPOST PROCESSING METHOD • 

Trinity used CALPOST Method 6, which calculates hourly light extinction impacts for the source and •

background using monthly average relative humidity adjustment factors. Trinity used monthly Class • I area-specific relative humidity adjustment factors based on the centroid of the Class I area as •

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included in Table A-3 of EPA's Guidance for Estimating Natural Visibility Conditions Under the 

Regional Haze Program. The factors for the relevant Class I areas in the analysis are provided in 

Table 5-1. •

TABLE 5-1. MONTHLY HUMIDITY FACTORS •

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Class I Area Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 

Caney Creek 3.4 3.1 2.9 3.0 3.6 3.6 3.4 3.4 3.6 3.5 3.4 3.5 

Hercules-Glades 3.2 2.9 2.7 2.7 3.3 3.3 3.3 I 3.3 3.4 3.1 3.1 3.3 

Upper Buffalo 3.3 3.0 2.7 2.8 3.4 3.4 3.4 3.4 3.6 3.3 3.2 3.3 • Wichita Mountains 2.7 2.6 2.4 2.4 3.0 2.7 2.3 2.5 2.9 2.6 2.7 2.8 •

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5.3 NATURAL BACKGROUND • 

For the Wichita Mountains, Trinity used default west natural background values. For all other Class I 

areas, default east natural background values were used. The annual average concentrations are •

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included in Table 2-1 ofEPA's Guidancefor Estimating Natural Visibility Conditions Under the 

Regional Haze Program and are provided in Table 5-2.

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TABLE 5-2. DEFAULT AVERAGE ANNUAL NATURAL BACKGROUND LEVELS 

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• Component 

Average Annual 

Natural Background 

West (Jlg/m3

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Average Annual 

Natural Background 

East (Jlg/m3

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Ammonium Sulfate 0.12 0.23 

Ammonium Nitrate 0.10 0.10 

Organic Carbon Mass 0.47 lAO 

Elemental Carbon 0.02 0.02 

Soil 0.50 0.50 

Coarse Mass 3.0 3.0 

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5.4 EVALUATING BART-EXEMPTION 

Trinity compared the high of the 200 I through 2003 daily 6.dv values output by CALPOST to a 

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contribution threshold of0.5 6.dv. Ifthe 98th percentile 6.dv values (the 7th highest value, 22nd highest. 


over three years) output by CALPOST is less 0.5 6.dv, then the source is exempt from BART 


requirements. Ifthe highest ofthe 6.dv values output by CALPOST is greater than 0.5 6.dv, then the 


• 
 source is considered subject to BART regulations and must start on a BART-determination process. 


5.5 SUMMARY OF CALPOST CONTROL PARAMETERS •

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• Table 5-3 provides a listing ofthe CALPOST parameters that Trinity used in the Riverside Station's 

modeling analysis. In addition to the parameters used for the Riverside Station's modeling, the table 

also lists CENRAP's recommended parameters for comparison. In cases where a parameter to be •

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used is different than what CENRAP recommended, a short explanation as to the difference is 

provided. 

TABLE 5-3. SUMMARY OF CALPOST INPUTS •

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CALPOST 

Variable Description 

Value Included in 

CENRAP Protocol Value Trinity Used Notes 

ISYR Starting year 2001 Appropriate met 

year 

Years 200 I, 2002, 

2003 

ISMO Starting month 1 1 

ISDY Starting day 1 1 

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Variable Description 

ISHR Starting hour 

NPER Number of periods to 

process 

NREP Process every hour of 

data? I yes 

Process species for 

visibility 

ILAYER Layer/deposition code; 

I for CALPUFF 

concentrations 

A Scaling factor, slope 

B Scaling factor, 

intercept 

LBACK Add hourly 

background 

concentrations of 

fluxes? 

LG Process gridded 

receptors? 

LD Process discrete 

receptors? 

LCT Process complex 

terraill receptors? 

LDRING Report receptor ring 

results? 

NDRECP Select all discrete 

receptors 

IBGRlD X index of LL comer 

of receptor grid 

JBGRlD Y index of LL comer 

of receptor grid 

IEGRID X index ofUR corner 

ofreceptor grid 

JEGRlD Y index of UR comer 

ofreceptor grid 

NGONOFF Number of gridded 

receptor rows 

NGXRECP Exclude specific 

gridded receptors, Yes 

=0 

Value Included in 

CENRAP Protocol 

0 

8760 

1 

VISIB 

F 

1 

0 

iO 

F 

F 

T 

F 

-1 

-1 

-I 

-1 

-I 

0 

0 

Value Trinity Used 

0 

8760 

I 

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1 

0 

0 

F 

F 

T 

F 

F 

Varies 

-I 

-I 

-1 

-1 

0 

VISIB 

0 

Notes 

AllCALPUFF 

periods will be 

included 

As appropriate for 

Class I area being 

analyzed 

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Variable Description 

RHMAX Maximum RH% used 

in particle growth 

curve 

LVS04 Compute light 

extinction for sulfate? 

LVN03 Compute light 

extinction for nitrate? 

LVOC Compute light 

extinction for organic 

carbon? 

LVMPC Compute light 

extinction for coarse 

particles? 

LVMPF Compute light 

extinction for fIne 

particles? 

LVEC Compute light 

extinction for 

elemental carbon? 

LVBK Include background in 

SPECPMC 

~ .1culation? 

particulate 

• 

Value Included in 

species 

SPECPMF Fine particulate 

species 

EEPMC Extinction efficiency 

for coarse particulates 

EEPMF Extinction efficiency 

for fme particles? 

EEPMCBK Extinction efficiency 

for coarse part. 

Background 

EES04 Extinction efficiency 

for ammonium sulfate 

EEN03 Extinction efficiency 

for ammonium nitrate 

EEOC Extinction efficiency 

for organic carbon 

EESOIL Extinction efficiency 

for soil 

EEEC Extinction efficiency 

for elemental carbon 

CENRAP Protocol 

95 

T 

T 

T 

T 

T 

T 

T 

PMC 

PM10 

0.6 

1.0 

0.6 

3.0 

3.0 

4.0 

1.0 

10.0 

Value Trinity Used 

95 

T 

T 

T 

T 

T 

T 

T 

PMC 

PMF 

0.6 

1.0 

0.6 

3.0 

3.0 

4.0 

1.0 

10.0 

Notes 

Notation difference 

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Variable Description 

Value Included in 

CENRAP Protocol Value Trinity Used Notes 

MVISBK Method 6 for 

background light 

extinction 

6 6 

BEXTBTBK Background extinction 

for MVISBK= 1 

12 Not Used Not necessary since 

MVISBK=6 

RHFRAC % ofparticles affected 

byRH 

10 Not Used Not necessary since 

MVISBK=6 

RHFAC Extinction coefficients 

for modeled and 

background 

hygroscopic species 

computed using EPA 

(2003) monthly RH 

adjustment factors 

Depends on Class I 

Area 

For Caney Creek: 

304,3.1,2.9,3.0, 

3.6,3.6,3.4,3.4, 

3.6,3.5,3.4,3.5 

Hercules-Glades: 

3.2,2.9,2.7,2.7, 

3.3,3.3,3.3,3.3, 

304,3.1,3.1,3.3 

Upper Buffalo: 

3.3,3.0,2.7,2.8, 

3.4,3.4,304,3.4, 

3.6,3.3,3.2,3.3 

Wichita Mountains: 

2.7, 2.6, 2.4, 204, 

3.0,2.7,2.3,2.5, 

2.9,2.6,2.7,2.8 

As appropriate for 

Class I area 

BKS04 i Background sulfate 

extinction coeff- east 

0.23 0.23 Used for HerculesGlades, Upper 

Buffalo, and Caney 

Creek 

BKN03 Background nitrate 

extinction coeff- east 

0.10 0.10 Used for HerculesGlades, Upper 

Buffalo, and Caney 

Creek 

BKPMC Background sulfate 

extinction coeff- east 

3.00 3.00 Used for HerculesGlades, Upper 

Buffalo, and Caney 

Creek 

BKOC Background organic 

carbon extinction 

coeff- east 

lAO lAO Used for HerculesGlades, Upper 

Buffalo, and Caney 

Creek 

BKSOIL Background soil 

extinction coeff- east 

0.50 0.50 Used for HerculesGlades, Upper 

Buffalo, and Caney 

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CALPOST Value Included in 

Variable Description CENRAP Protocol 

BKEC Background elemental 0.02 

carbon extinction 

coeff- east 

BKS04 Background sulfate 0.12 

extinction coeff- west 

BKN03 Background nitrate 0.10 

extinction coeff- west 

BKPMC Background sulfate 3.00 

extinction coeff- west 

BKOC Background organic 0.47 

carbon extinction 

coeff- west 

BKSOIL Background soil 0.50 

extinction coeff- west 

BKEC Background elemental 0.02 

carbon extinction 

coeff- west 

BEXTRAY Extinction due to 10.0 

Rayleigh scattering 

(l1Mm) 

LDOC Print documentation F 

image? 

IPRTU Print output units for 3 

concentrations and for 

deposition 

LlHR Report 1 hr averaging F 

L3HR hr averaging 

0".00 

times 

F 

L24HR Report 24 hr averaging T 

times 

LRUNL Report run-length F 

averaging times 

LT50 Top 50 table F 

LTOPN Top N table 

NTOP Number ofTop-N 

values at each receptor 

ITOP Ranks ofTop-N 1,2,3,4 

values at each receptor 

LEXCD Threshold F 

exceedances counts 

Value Trinity Used 

0.02 • Used for Hercules0.12 

1 0.10 

0.47 

0.50 

0.02 

10.0 

F 

3 

F 

F 

T 

F 

T 

F 

4 

1,2,3,4 

F 

Notes 

Glades, Upper 

Buffalo, and Caney 

Creek 

Used for Wichita 

Mountains 

Used for Wichita 

Mountains 

Used for Wichita 

Mountains 

Used for Wichita 

Mountains 

Used for Wichita 

Mountains 

Used for Wichita 

Mountains 

Units preference 

Output preference 

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CALPOST 

Variable DescriPtion 

Value Included in 

CENRAP Protocol Value Trinity Used Notes 

THRESH 1 Averaging time 

threshold for 1 hr 

averages 

-1 -1 

THRESH3 Averaging time 

threshold for 3 hr 

averages 

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THRESH24 Averaging. time 

threshold for 24 hr 

averages 

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THRESHN Averaging time 

threshold for NAVGI hr averages 

-1 -1 

NDAY Accumulation period, 

days 

0 0 

NCOUNT Number of 

exceedances allowed 

1 1 

LECHO Echo option F F 

LTIME Time series option F F 

LPLT Plot file option F F 

LGRD Use grid fonnat 

instead ofDATA 

fonnat 

F F 

LDEBUG Output infonnation for 

debugging? 

F F 

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6. MODEL RESULTS 

A summary ofthe top 25 visibility-impairing days at each of the relevant Class I areas over the 

modeled 2001-03 period is summarized in Table 6-1 to 6-4 below. Shaded values indicate visibility 

impacts that exceed the 0.5 ~dv threshold for contribution to visibility impairment. 

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As seen in these tables, the 98th percentile values indicate that the Riverside Station's contribution to 

visibility impairment is below the 0.5 dv threshold at each ofthe neighboring Class I areas. These 

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results indicate that the Riverside Station therefore qualifies for exemption from BART. 

TABLE 6-1. VISIBILITY IMPACT MODEL RESULTS FOR CANEY CREEK 2001-03 

• Rank Modeled Background Extinction by Species (%) Year Day •

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TABLE 6-2. VISIBILITY IMPACT MODEL RESULTS FOR HERCULES GLADES 2001-03 

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Rank 

25 

Background Extinction by Species (%) Year Day 

0 0 0.16 

0.13 98.78 0 0 0.11 

262 

11 

2003 13 • 1.28 2002 355

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Rank Modeled 

Visibility 

Impact (Adv) 

Background E(~tinction by Species (%) Year Day 

PMF 

1.27 2001 362 

0.55 22 

0.234 0.04 98.46 0 1.35 2001 361 

0.88 2002 12 

0.48 2002 25 

2002 

2001 340 

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TABLE 6-4. VISIBILITY IMPACT MODEL RESULTS FOR WICHITA MOUNTAINS 2001-03 '.•

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19 

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21 0.06 99.76 0 

ercentile 

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24 

0.12 96.57 

0.06 98.92 

0 

PMC PMF 

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0.27 

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64 PSO Trinity Consultants 


Riverside Power Station 063701.0005 

ApPENDIX A - EMISSION DATA 

PSO Trinity Consultants 


Riverside Power Station 063701.0005 

•••••••••••••••••••••••••••••••••••••••••••• 

Printed 11/27/2006 

Source EmissillnS 

L.ocation UnUID Conslr. Dale' Hcat DUly 

(MMBtu/hr) 

Primary Fuel NO, 

Ibslhr 

Emission Dala Inpul 

TOlal PM,. PM (coarse)' PM (fine)' 

Ibs/hr Ibslhr Ibs/hr 

SO, 

IbS/hr 

H,SO. 

Ibs/hr Source 

Riverside I 

Riverside 2 

Mar-71 

Mar-71 

4,684 

4,766 

Natural Gas 

Natural Gas 

1135.30 

96120 

46.52 11.63 34.89 

31.74 7.94 23.81 

3.72 

2.54 

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CEMS Data, 712212005 (NO,), 113/2001 (PM 10, SO,), 

CEMS Data, 3/212005 (NO,), 3/4/2002 (PM 10, SO,), 

Riverside CEMS data from IIlnOOI to 12/3112005. Southwestern CEMS data from 111/2001 to 12/31/2005, 

Construction dates and sOul'\:e parameters as listed in Permits 97-090-TV, 2003-36Q.TVR. SW units IN, I S, and 2 constructed outside of lb. 7-Aug-62 to 7-Aug-77 BART eligibility window. 

1 Condensible/filterable PM speciation based on National Park Service guidance for NG-fired combustion turbines. http://www2,nature.nps.gov/air/PermitsiectlcctGasFiredCT.cfm 

PMlO_,., (filterable) 25% 

PM',5 (condensible) 75% 

Stack parameters (English) 1 

Location Unit ID Exit Velocity Stack Height Stack Oiameier Stack Temp. Base Elev: 

fIIsec reet reel Fahrenheit (feel) 

Riverside 1 53.40 300 18 249 610 

Riverside 2 53.40 300 18 249 610 

Stack parameters (Metric) 

Location UnitlD Exit Veloeity Stack Helghl Slack Diamder Stack Temp Base Elev. 

(m/s) (Ill) (m) Kelvin (melers) 

Riverside I 16,28 91.46 5.49 394 186 

Riverside 2 16.28 91.46 5.49 394 186 

5 Base elevations obtained from visual inspection of USGS topographic maps 

'--. 

AEP Riverside Page 1 of 1 Trinity Consultants 

BART Modeling AEP BART Emission Data - CEMS Summary.xls\Modeling Input Data 063701.0005 

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)5:i;.f.Y....•.... -95.567 

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• ApPENDIX B - DATA FILE LIST 

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• LIST OF SURFACE STAnONS 

Station No. Longitude 

Station ID Location (officiallD) Latitude (deg.) (dee.) 

IKWLD Winfield/Ark. Citv. KS 724502 37.166 -97.0)~ 

KBVO Bartlesvill~. 01<."--_________----'=, 72356..5 36.767 ............ 
-96.017

.... Childress:._TX:...!.-'-__...._.~_______ 723604 ._.~433 .-100.283 

lS:GN!L.... __ChanuUliM!!!,i.!l John. KS___ J..~.9.1\O"_.__~:Jj§7_...._ -95.483 

~~SM Clinion-Shenn.ll.Il. OK .._~__7235?§__ ..__ 35.333.~__:.2t6!.l_0~ 

KDTO Dentnn. TX 7"'2=25""8!..!.9___--'~= 33.200 ___-=.!.~C!:-_1 -97.183

...... lil Dorado/Goodwin.I).R 93992 33.217 -92.817 

KENO Vance AFBlEni.li. OK ~_.____7=2=35=3=5____--== 36.,133 -97.917

lS:f..~_9_~~IDen.nil!Q!)..J.:~t_____.__ .___.-.l?~§LL___ ........_}}.2.!.L -96.667 ..­ lS:fDR _.f.~tkr.i£!5.:...QK....._.. ____?f.f.??._.._..___ ..~~,1.~1.~..__. -98.983 

KFL.f__... Flinnin. AR.o_______...._ ....__.__ 5555~.____.... 36.30Q____.....:9..~~ 

lS:ITM....... Fort Smith. AE- 13964 35.333"--___-:9!C4"'.3""6'-'..7_ 


K.FYY Favetteville!DraJce.,I)..-"R'--__..____---"9:=.399~3'______"3!!:6.!!:00"'_0'_ -94.167 


I"K~~G!.!CA"'G'--._......-"G"'-al1"'e"__.0'=!K-"'--__,______.._____--'1~39~7~5___._""_"36,=_3,0=0____-_'_9_'_'9.-'.-'76"",7_-1 


lS:fffiR .Hobart. OK ._________......'.9=-39."-~8'_'6~___....__}.~,.Q9.P-'--__---'-9'_'_9=.0~Q_ 

lS::HOT ._....___...BQt..s..Il.:r.i!'-~"A~........__.__.....__...._......??}.:1:.!.~.....__.... ~:<IA§.?..._....._.....:-""93"-".01\~___ 


KHRO HlID,isonlBoone.Go.._A!L.......__..____ ._.. 13971_.___.._ ....]6.23~ ._:93.117....._ .. 


KTAB McConnell AFB. KS 3923 37.617 -97.267 


KTCT Wichna. KS 3928 37.650 -97.433 


!'Q!J'l'....... Jonlin E-~onal. lyfO ...... 723495 37.1 SO _9 A eM 


KLAW Lawton. OK 99999 .._3.:<1:,'?'{i7 -98.4-'_7_ 


K.Ie~__J"jQeral. KS .... ___.. _ ..............._..LU.L!..._...__....._._...HJm_·____-:100.9.~ 

lS:!J:f_.. Lit1:Ie...B!!£k/Adam!!:.AE- ......._..1.1963. __ 34.733..._.__ -92.~.~L..__... 


iKLRF Little Rock AFB. AR 723405 34.917 -92.150 


KMKO Mu.~kol1ee1Davis Field. 0lS:_ 11112 35.650 -95.367 


KMLC McAlester Remona!. OK 93950 34.900 -95.783 


~. KMWT Mella 1ntem@onal M1!f1.. AR 723435 _ .... 34.5~!l.. -94.217 

I!illlCC ....._.~'kl.!!h{)ma (;.i.tv. QJL~. __.__·_ ........._................_n.~......._..._._....~.409. -97.600 


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IKOUN _...._NQ!m.a.!1-Westheitl!!;!',..Q..K_,____...._.__..........Tl351!L............._-».c~}}.._ .....___..::.9.1.459...._ 

~~__ Me4.icine Lod!!e. KS 724520 37.283 -98.550 

iKPNC PoncaCitv.OK I 39i)9. 36.733 -97.100

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l"iK'-!..lP-'-PF'--__-'P'-"aTS""'"""on"'sIT"-!..!.n,·cC""i""tv'-'..""K""'S________...:..7-':4S""4""3-'...'___.......::3.71~""3____-:..<.95"'.""51'_'7_-I 

FiK'-!..lP!!oRX~___.-'...P!!!an_",·slCox F(eJ.4., T~_._____._ 33333 33.633 -95.450 

~ROG ROllers. AR 66666 36.367 -94.100 

~SGF Smin2f!~!1i. 1\19 ...._.__.._,,_ __. 1.3.995 -93.383 

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iKSLG Siloa""m"-S"'n!'-nn!!!Il""..!.:A"'R'--___.__ __~7'-'7'-'-7-'-77'--___.-'3=6.1.'_"8=_3__............:94.483 __ 

[5:SPS Wichita Falls. TX 13966 33.983 -98.517 

~SWO Stillwater. OK 11113 36.150 -97.083 

iKTBN Fort~nard Wood MO 724457 37.750 -92.150 . __ 

iKTTK Tinker AFB. OK 723540 .... 35.417 .~.,~!Q_ 

~TI.~L._. McKinnev. TX ___._..__2~.6?~ ____-"3~3_"__18:'_'3:.........___-?6.5~.L_ 

iKTUL Tulsa Tnt. Ajmort:. Of( 13968 36.200 -95.~~.~.....__.. 

:K.TXK ......._......I~l!.alJsana ~!ll!ional. TX:................._._____.......Jl-'--'97c.:.7__.• __1?A~Q._. -94·9.QQ ........_ 


KVBT Ben!I.l.!!ville·.AR____..____•..._!.!.~.888 J.!i:.l~..Q.._... -94:611...__ 


KWDG___1:l.n!Ql.FI.l..Q.cirinll. OK 


KADM Ardmore Municinal. OK 723SSS 34.300 -97.017 


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LIST OF PRECIPITATION STATIONS 

Cooperative Latitude Longitude 

station ID 

30130 _.......::.Ac.;:L:..:;UM. FORK 

30178 ANTOiNE AR 34.020 -93.250 

Location/name State 

,-"'#~,--,--"-.---..----~,,#_-"'---.-.---~.-,~~"'..---~-,---..­

30220____..__A~.!?.~hfHIA.~..!:L........._..........___... _....~~__..~:I:Q2Q .... __-9::..:3:.:;.0:::3.:::..0_ 


30458 BATESVILLE LIVESTOCK ..._ .......................:...A;:::.R'--_ 35.500 -91.460 


30764 BLAKELY MOUNTAiN DAM AR 34.340 -93.120 --....-.~-..--..... _.._-- ..._------.,-,.---_.­

30798 BLUE MOUNTAiN DAM AR 35.070 ..93.390 ..---. ._-_. 

30832 BOONEVILLE 3 SSE AR 35.060 -93.550 

30842 BOTKiNBURG 3 NE AR 35.430 -92.280 

30900 BRIGGSVILLE AR 34.560 -93.300 

31020 BULL SHOALS DAM AR 36.220 -92.340 

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31140 CALIONL&D AR 33.180 -92.290 

-93.180 

32300 _..__..__EL .. DORADO GOODWiN FD AR 33.130 .._--_.. -92.490 

32356 EUREKA SPRINGS 3 WNW AR 36.250 -93.470 

32444 FAYETIEVILLE EXP STN AR 36.060 -94.100 

32489 FERNDALE6E AR 34.460 -92.270 

32544 FOREMAN AR 33.430 -94.230 

32574 FORT SMITH MU, OK AR 35.200 ·94.220 

PSO Trinity Consultants 

Riverside Power Station 063701.0005 

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35.590 -92. 

34.120 -94.150 

AR 35.310 -92.000 ,"..---~-~--, 

F~____~W_S_ON_I_AA__AP=-______~'-'--_ AR 36.160 -93,090 

AR 36.040 -93.450 ..-.--------..­....... 

~=~____~L~E~W~IS~V~I~LL~E~________ AR 33.220 -93.340 

!=-"::..:.:::.___---=Nc:"ORTH UTILE ROCKJMUNICI::;,P.:.:A=L_.-:;,,;:,::.::......_--=.~=-=- AR 34.500 __-"-=:.:..:.::-=---~ -92.160

34756 AR 34.340 -94.160 

34839 -93.590 

34988 MOUNT IDA 3 SE AR 34.320 --,-~~,----------,-,----,-------'-~--~=-'-- -93.350 

AR 34.090 -93.430 

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~?'?'Q_O__ "",_",_"",_"_"_,,,N_IM_R_O_D.P=-A:..::M::.::.._______,,,.;;,,:;,:~, AR -93.100 

35228 

35320 NORTH LITILE ROCKJMUNICIPAL AR 34.500 -92.160 -,--.~---------.---~- ""-----­

35602 AR 35.570 -93.150 

35754 PINE BLUFF AR 34.140 -92.010 

Fl...::42::.:1c:::64-'--___:QO-'--DG~E-'C'_'_IT.=.Y~M_U--',_K-'S___,_,____K_S_,___3_7,.46.0_,__-22..:580 

142432 ELKHART KS 37.000 -101.530 

FI4,,:,,:2:.:,9-=-80"---__---=:GARDEN CITY EXP STN KS 38.000 -100.490 

143954 

143984 

KS 37.170 -9S.330 

KS 37.390 -97.260 "".,~''''---.,--

F1.:4,S""'S:::,:30"---___W=ICHlTA KS. 

230789 

F2,;:,:32::::3..::.02=--___=DQ~_.,__ ,_________, -,-,_MO ..._._..__._' 36.470 ........ -92.140

F2"-34=3~15'-____ JQPLIN M_UNICIPALA"-p_____,MO 37.090 -94.300 

234544 MO 40.120 -92.340 

234825 MO 37.410 -92.420 

F2"-34~9o-'-19"---___LICKING 4,.;.N_________..:..:.:.:"--_.....: MO 37.330 -91.530 

MO 37.200 -92.550 ----.."",---,--_.._-,­

MILLER I E:...........___, """""_,,,· MO ___

37.130 ___-93.500•••__

o:=.::..:.:-_:;,."",,__---'O::.:Z:::A,_~_B_Et\CH MO 36.400 -93,OSO 

PSO Trinity Consultants 


Riverside Power Station 063701.0005 

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-91.320 

MO 37.140 -93.230 .--"'''~-,~''''- f.379.?§_..__ SPRlN9..~I.I.!!::Q(MY.N· MO.... 

F-:":":::=-"'" .._...•..~J_O_CIS.!'9~_D_AM.........____ MO 37.420 -93.460 

MO 36.360 -93.180 ,,,,,-,..,.""""""-""""" ...---~.~-,-,--. 

.......__. ___ gK_....._3_4_.35_O' __..-.::-99.200 

OK 34.100 -97.080 

OK 36.450 -96.000 ,.,.,.." ...,-.-~-,~..---.-..................--...---~.. 

OK 

OK 

35.030 -97.550 

'-"--__-97.580 

_ ......__.........9K=--_.....:;36.180 __....;:-9;..:.9..:....4:..:.60.:..., 

-98.190 

OK 36.450 -98.080 ,..--...-....---~-- ....."..~.,..,-,.,..... ...---...... 

..=.:==...___..._....___-'O:..;:K:::......-_ 35.290 -97.400 

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3455_89__ ......M1!!:.~!fA_LL._.._.._.__...._.. ___....__9_K__.~§:Q~Q_._.:2_7._3?Q. 

345664 MCALESTER MUNI AP ___.......:::OK._~~.:~~Q._~_ -95.470 

346485___.......::..NOWATA=--__....._ ...................___.__.........::.O.::.:K:..... 36.420 -95.380 

346616 OILTON 2 SE OK 3c.:: 6 0...:. 40 -96.340 ---::.=-............-~.-~....--...................~--..-....::..::.=-­ :. 

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• 346944 .:....;..:.-_.._.._._PAWNEE .............._................ 5 N __......_.. _-- .--="'--_ OK ..__36.240 .._.........__._.........-96.490 -'-=..:...;..:.--1 

3474.:..:1.::.2___--=..:RANGE ____......._.........._....__.____O_K.___ .... _.}§}_3_0___._:}.9"!:~Q. 

347660 .___....:RI-=--V=E~S.ID~.4:'Y ___ .........___..__O_~_.. __..._.1.§,4.?9___-!gg.2SQ... 


348992 

349404 !Y~Y!':IQ..KA .__....._____......._O_~. __36_.3_2_0........_-=?.~.. 530 

349629 WICHITA MTN WL REF ____-'OK 34.440 -98.430 

PSO Trinity Consultants .• Riverside Power Station 063701.0005

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_c:::C.:::LA:..:RK=S::...V.:...:I=L=LE=_:I:....:..;W'---_____.TX _.___3~3_.3.?Q___ -95.01.0 

COMMERCE ____ T~X=-__3~3~.l=2.o~_~-9~5.~56~.o_1 

TX 3.0.2.00 -95.29.0 

p=..:.::........___----'D::.:Ac::L::.:L:::.A:.::S:....:-F:...:O:..:R.:.:Tc....:V!..._O_RT_WF_OR_T_. T.~:___T_X___32_.5_40___._.....::?.7.:'OI.o 

DALLAS LOVE _._,---­ FIELD _T..:.:X:..::.-_--=.;32:::.::..:51.•Q....._._............:2.~.:.?..!.Q 

DENTON 2 SE _.._-----_._-_. TX 33.12.0 -97.06.0 ................................. 

FORT WORTH MEACHAM F TX 32.49.0 -97.21.0 

r==..:.:__.__	F_O_RT WORTH WSFO TX 32.5.0.0 -97.18.0 

FruSC~O,---_______ TX 33 ..090 -96.49.0 

TX 32.57.0 -97.03.0 

HERE!'.Q.~_..._____.__._...__......_...__1](.=--_-=-34:.:...4.:.:9O.::...-__-:..:1O=2:.::.2.:..4.0, 

HUNT I.oW ________...::T.:..:X'----_-"-3.o..o30 -99.31.0 

_.....::.::JA...::..C::.:Kc:::S:::::B:...:O:..:R.:.:O'--_______--'-T:..:X__..::.;33.14.o=---_........:;.9...::..8:::.
 ..o:...:9.o~_1 

. ___ .~_..._._ .._. LEXlli.<LT..9N_....____ __IK__.~Q)5.o -97 . .010 

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LUBBOCKJLUBBOCK __......._....-...____.........._._......_..........INTL _ ..__._________ TX. TX "...,.."_"""""'_"""
 33.39.0 -101.490

MIDLOTHIAN 2 TX 32.290::..:::....__-'-9:..:,7.:..:.0.:::...0.0, 

MINERAL WELLS MUN AP TX 32.47.0 -98.04.0 

MOUNT PLEASANT TX 33.1.0.0 

TX 33.11.0 -102.5.0.0 

TX 32.15.0 -98.12.0 

_'---S::.:UL=PHU~§I'~_Ci§.. ______T.:.:X'-"-_-=:::33:..:..o""9c:::0___-..:::.9::...5.::...38:::;.0'-----1 

......__....___T_E_Jq\RKA_N_A••..•__.______--=.T=X 33.2::::5::....0___.9::._4:.:::.0.:::..5.0::..........---1 

WEAI!f_E_RF_O_~_ ............__.____....I~......._ 32.45.o"--_...........c.9:..:7.:...:.4.:::..60::..........-J 

WICHITA FALLS/SHEPS AFB TX TX 33.59.0 -98.3.0.0 

PSO Trinity Consultants 


Riverside Power Station 063701.0005 

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List of USGS Terrain Files (1-deg format) 

t· 

37 

36 

35 

34 

33 

Dodge Cily-E PraU-W Pralt-E Wichita-W Wichita~E Joplin-W Joplin-E SpringOeld-W Springlield-E Rolla-W 

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PcrrylOn-E Woodward-W Woodward-E Enid-W Enid-E Tulsa-W Tulsa-E Harrison·W Harrison-E 

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Poplar BluJT-W 

Plainvicw-E Clinlon-W Clinton-E Oklahoma City-W Oklahoma City-E FortSmilh-W Fort Smith-E Russcllvillc-W Russcllvillc-E Mcmphis~W 

Amarillo-E LaW1on-W Lawtoll-E Ardmorc-W Ardmorc~E Me Aleslcr-W Me Alcslcr-E Link Rock-W LiUle Roek-Il Helena-W 

Lubbock-E Wichita faUs-W Wichita FaU.-E Shcrman-W Sherman-E Tcxarkana~ W Tcxarkana-E EI Dorado-W 

--­

EI Dorado-E Grccnwood-W 

101 100 99 98 97 96 95 94 93 92 
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List of USGS Land Use Lan~ Cover (LULC) Files (1 :250,000 km Format) 

38.S 

37.S 

36.S 

3S.S 

., 

~ 

I 34.S 

Dodge City Pratt Wichita Joplin Springfield Rolla 

Perryton Woodward Enid Tulsa Harrison Poplar Bluff 

Plainview Clinton Oklahoma City Fort Smith 

Russellville, Conway, 

Flygap Mountain, 

Mountain View 

Memphis) 

Amarillo Lawton Ardmore Mc Alester, Antlers, 

DeQueen, Mena 

Little Rock Helena 

Lubbock Wichita Falls Sherman Texarkana El Dorado Greenwood 

102 100 98 96 94 92 

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,r.;< ~:";·~·_~"t~t~~~t~~-ii~~,••/u",!,~,:,~,_·~U:~,i~~~-~~O:d.-~--Jj:~_~~~~:;;A.I&~~- ~4.. ,~.,,"-~,~.JO::.ir;!,,
r,~;c .e 

'jr, .', 

ApPENDIX C - MODEL INPUT/OUTPUT FILES 

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PSO Trinity Consultants 


Riverside Power Station 063701.0005