Modeling Protocol 

for 

Southwestern Electric Power Company 

Flint Creek Plant 

Dry FGD Installation 

Prepared for 

Southwestern Electric Power Company 

for submittal to 

Arkansas Department of Environmental Quality 

Prepared by 

David J. Long, PE 

American Electric Power Service Corporation 

Environmental Services Division 

Air Quality Services Section 

November 19, 2009 

APSC Docket No. 12-008-U 

Sierra Club 1-43a, Attachment 2 

Page 1 of 21
Flint Creek Dry FGD Installation Modeling Protocol November 19, 2009 

 i 

Table of Contents 

LIST OF TABLES ........................................................................... i 

LIST OF FIGURES ......................................................................... i 

INTRODUCTION ...........................................................................1 

STACK PARAMETERS AND EMISSIONS .......................................... 1 

MODELING DOMAIN AND RECEPTOR GRID .................................... 2 

METEOROLOGIC DATA SELECTED ............................................... 3 

MODELING APPROACH ................................................................4 

MATERIALS TO BE SUBMITTED ................................................... 5 

APPENDIX – BPIP INPUTS AND OUTPUTS ....................................... 7 

List of Tables 

Table 1. Flint Creek Plant Operating Input Data ......................................... 2 

Table 2. Impact levels for use in determining if detailed modeling is required ...... 5 

List of Figures 

Figure 1. Flint Creek Modeling Domain ................................................... 3

APSC Docket No. 12-008-U 

Sierra Club 1-43a, Attachment 2 

Page 2 of 21
Flint Creek Dry FGD Installation Modeling Protocol November 19, 2009 

1 

INTRODUCTION 

In order to comply with the requirements of the Federal and State Best Available Retrofit 

Technology (BART) Rules, Southwestern Electric Power Company has elected to install 

a Dry FGD system and new Low NOx Burners with Overfire Air on its Flint Creek Plant. 

This document outlines the air quality modeling analyses to be conducted as part of the 

permitting process for this equipment to demonstrate that the installation of this 

equipment at Flint Creek Plant will not have an adverse impact on ambient air quality in 

the area surrounding the plant site. 

STACK PARAMETERS AND EMISSIONS 

Emissions and stack data to be used in this modeling are shown in Table 1. The current 

design calls for reuse of the existing stack; therefore the stack coordinates will not change 

between the existing and scrubbed cases. The existing full load exit velocity and 

temperature is based on the 2008 Part 75 Flow RATA performed on November 11, 2008. 

This was the only load tested during this RATA. The flow for the existing low load case 

is based on a temperature adjusted design flow from the low load FGD Case. The full 

and low load FGD Cases are based on design information from the technology supplier 

available at the time of protocol development. The mid load cases for both the existing 

and FGD cases are interpolated as being half way between the full and low load cases. 

SO2 emissions for the existing cases are based on the NSPS limit of 1.2 lb/MMBtu and 

the presumptive BART SO2 limit of 0.15 lb/MMBTU for the FGD cases. NOx emissions 

are similarly developed using the NSPS limit of 0.7 lb/MMBtu for the existing cases and 

the presumptive BART NOx limit of 0.23 lb/MMBtu for the control cases. CO is 

anticipated to increase as a result of the installation of the new Low NOx Burners and 

Overfire Air from the current full load permit limit of 822.3 lb/hr or 0.13 lb/MMBtu to 

0.15 lb/MMBtu or 948.6 lb/hr. It is not anticipated that the installation of the Dry FGD 

system will result in the change of emissions for any other permitted pollutant. The total 

particulate emissions, are based on a 0.123 lb/MMBtu emission rate which includes the 

primary particulate limit of 0.1 lb/MMBtu plus and allowance of 0.023 lb/MMBtu for 

condensible particulates, and lead which will be modeled based on a full load emission 

limit of 0.082 lb/hr for both cases. These values will then be scaled to develop the lower 

load emission estimates shown in Table 1. 

Based on the use of the USEPA Building Profile Input Program (BPIP) the existing stack 

height of 540 feet is slightly greater than the Good Engineering Practice (GEP) stack 

height calculated by BPIP of 513 feet, which will be used for the modeling. While it is 

not necessary to include building profile information in this case of a stack height at or 

above GEP, the BPIP outputs are being included in the modeling input files. The 

Appendix to this protocol contains the BPIP inputs and outputs for both the FGD and non 

FGD cases. 

APSC Docket No. 12-008-U 

Sierra Club 1-43a, Attachment 2 

Page 3 of 21
Flint Creek Dry FGD Installation Modeling Protocol November 19, 2009 

2 

Table 1. Flint Creek Plant input data. 

Parameter Unit 1 

6324 MMBtu 

Unit 1 

4067 MMBtu 

Unit 1 

1810 MMBtu 

Stack UTM Coordinates Northing/Easting 4013440 

363080 

4013440 

363080 

4013440 

363080 

UTM Zone/NAD Zone 15 

NAD 83 

Zone 15 

NAD 83 

Zone 15 

NAD 83

Stack Height (meters) 156.37 156.37 156.37 

Stack Diameter (meters) 6.1 6.1 6.1 

Existing Case Stack Temperature (K) 412.9 408.2 405.4 

Existing Case Stack Flow Rate (acfm) 1,943,587 1322082 697512 

Existing Case Stack Exit Velocity (m/sec) 31.43 21.38 11.27 

Scrubbed Case Stack Temperature (K) 352.8 351.7 350.5 

Scrubbed Case Stack Flow Rate (acfm) 1,850,032 1,225,882 601,733 

Scrubbed Case Stack Exit Velocity (m/sec) 29.92 19.82 9.73 

Grade Elevation (meters) 353.6 353.6 353.6 

Particulate (TSP and PM10) lb/hr 778.4 406.7 181.0 

Particulate (TSP and PM10) g/sec 98.08 51.24 22.81 

Lead lb/hr 0.082 0.053 0.023 

Lead g/sec 0.010 0.007 0.003 

SO2 Existing – lb/hr 7588.8 4880.4 2172.0 

SO2 Existing - g/sec 956.17 614.92 273.67 

SO2 with FGD – lb/hr 948.6 610.1 271.5 

SO2 with FGD – g/sec 119.52 76.87 34.21 

NOx Existing – lb/hr 4426.8 2846.9 1267.0 

NOx Existing - g/sec 557.76 363.45 159.64 

NOx with LNB/OFA – lb/hr 1454.52 935.41 416.3 

NOx with LNB/OFA - g/sec 183.27 117.86 52.45 

CO Existing – lb/hr 822.3 528.71 235.3 

CO Existing - g/sec 103.61 66.62 29.65 

CO with LNB/OFA – lb/hr 948.6 610.1 271.5 

CO with LNB/OFA – g/sec 119.52 76.87 34.21 

MODELING DOMAIN AND RECEPTOR GRID 

The receptor grid has been developed using AERMAP version 09040. The overall 

receptor grid runs from a southwest corner of 313000 easting by 3963400 northing in 

UTM Zone 15 to a northeast extent of 413000 easting by 4063400 northing. The overall 

grid contains an interior zone of 100 meter receptors extending from 358000 easting by 

4008400 northing to 368100 easting by 4018500 for a total of 10,400 receptors. This is 

then surrounded by a 250 meter grid extending out approximately 10 additional 

kilometers with an extent of 348000 easting by 3998400 northing to 378250 easting by 

4028650 northing generating 13203 receptors with a spacing of 250 meters. This is then 

surrounded by a coarse grid of 1 kilometer spacing which covers the balance of the 

domain, resulting in an additional 9240 receptors with a spacing of 1 kilometer. The total 

number of receptors being modeled is 32847. Figure 1 shows the configuration of this 

grid with the interior zone, in yellow, representing the 100 meter grid, the green zone 

representing the extent of the 250 meter receptors, and the blue zone representing the 1 

APSC Docket No. 12-008-U 

Sierra Club 1-43a, Attachment 2 

Page 4 of 21
Flint Creek Dry FGD Installation Modeling Protocol November 19, 2009 

3 

kilometer receptors. The plant is denoted by the red dot roughly in the center of the 100 

meter receptor grid zone. 

Figure 1. Receptor Grid for Flint Creek. 

Note: Red dot in center grid denotes stack location. 

METEOROLOGIC DATA SELECTED 

The surface meteorologic data selected for this study was taken from the Automatic 

Surface Observation Station (ASOS) at the Northwest Arkansas Regional Airport near 

Bentonville, Arkansas. This data was selected based on a review of the surface 

characteristics of the Flint Creek Plant site and the area surrounding the meteorologic 

instruments at the airport. Additional sites were reviewed, but not deemed sufficiently 

representative of the Flint Creek Plant site due to excess urbanization near the 

meteorologic monitoring stations. The additional stations examined were at Ft. Smith, 

Arkansas; Tulsa, Oklahoma; and Springfield, Missouri. 

APSC Docket No. 12-008-U 

Sierra Club 1-43a, Attachment 2 

Page 5 of 21
Flint Creek Dry FGD Installation Modeling Protocol November 19, 2009 

4 

Following the selection of the Bentonville site as the preferred source of surface 

meteorologic data, data covering the period January 1, 2003 at 0000 UTC to January 31 

2009 at 2300 UTC was obtained in archived 3502 format from National Climatological 

Data Center (NCDC). This dataset typically reported three data lines per hour for the 

Bentonville ASOS site. This data was then examined to determine its completeness. 

This examination revealed that the data from 2003 through 2005 and 2007 through 2008 

was sufficiently complete to be used. However, the data for the year 2006 was rejected 

due to a gap in the data set from 0500 UTC on March 13 to 1635 UTC on July 19. 

Therefore, the five years of meteorologic data selected for the study are 2003, 2004, 

2005, 2007, and 2008. 

Upper Air data was obtained for the same years as the surface data from the 

NOAA/ERSL Radiosonde Database1

 for the Springfield, Missouri radiosonde site. This 

site was selected as being climatologically representative of the Flint Creek Plant site and 

is sufficiently complete to allow processing of the selected years of surface data. 

The data was ultimately processed into model ready form using AERMET version 06341. 

The surface parameters used in the Stage 3 processing of AERMET were developed for 

the Bentonville surface site using the AERSURFACE preprocessor over a 1 kilometer 

radius divided into eight 45 degree sectors. Due to format issues with the NCDC 

archived 3502 data and the inability of AERMET to accept this specific version of the 

3502 format, an additional step was taken prior to the exercising of AERMOD. This step 

used a program developed by Russell Lee2 and made freely available on his web site to 

convert the archived 3502 format data into SAMSON format data, select a single value to 

represent the hour in those hours where more than one value exists, and to convert the 

alpha descriptors for cloud cover into numerical values that AERMET can handle. This 

process was documented by Lee in a 2003 paper “Using the New ISHD Format 

Meteorological Data in the Lakes Environmental RAMMET View and AERMET 

View”3. The data from this process was then input as the surface data for AERMET. 

The upper air data required no supplemental processing for use in the AERMET 

processor. 

MODELING APPROACH 

AERMOD version 09292 will be used for the modeling done under this protocol. Initial 

modeling will be performed on emissions from the main stack for all pollutants shown in 

Table 1 at full, mid, and low loads as indicated in Table 1. The change in ambient 

concentration will then be evaluated against USEPA Significant Impact Levels (SIL), 

shown in Table 2, to determine if additional analyses will be required. For those 

pollutants that exceed the Prevention of Significant Deterioration (PSD) significance 

 

1

 http://raob.fsl.noaa.gov/Welcome.cgi 

2

 http://www.rflee.com/ 

3 Lee, Russell F., Using the New ISHD Format Meteorological Data in the Lakes 

Environmental RAMMET View and AERMET View, http://www.rflee.com/RFL_Pages/ISHD.pdf, 2003. 

APSC Docket No. 12-008-U 

Sierra Club 1-43a, Attachment 2 

Page 6 of 21
Flint Creek Dry FGD Installation Modeling Protocol November 19, 2009 

5 

levels for this project (likely only CO), or that the facility initially analyzed for PSD 

increment consumption, the additional analyses will include both an evaluation of the 

National Ambient Air Quality Standard (NAAQS) and PSD increment. For any non-PSD 

pollutant whose change in ambient concentration exceeds the (SIL), only an evaluation of 

the NAAQS will be performed. Should any of these additional analyses be required, 

ADEQ will be consulted to determine the appropriate sources and emission rates to 

include in the analysis. 

Since lead does not have an SIL established for modeling purposes, it will be evaluated 

for compliance with the 2008 ambient standard using the following technique. Three 

month rolling averages of peak monthly averages will be generated starting with March 

2003 and continuing forward to the December 2005 three month average. Due to the 

missing data issue with 2006, three month averages will be picked up again with the 

March 2007 value and continued through the December 2008 three month average. 

Should an average exceed the NAAQS, but come from different receptors, each involved 

receptor will be evaluated for the same three month period to determine if the standard is 

achieved. 

Further, in the event that an elevated concentration of regulatory interest is modeled in 

the 1 kilometer portion of the grid, the spaces between the elevated receptor and the 

adjacent receptors will be filled with 100 meter receptors to better define level of the 

elevated value and its spatial extent. 

 

Should a full NAAQS analysis be required for a monitored pollutant, background 

concentrations will be determined using the average of the two consecutive year highest 

high second high monitored values from a single monitor in the region that do not appear 

to be impacted by emissions from Flint Creek Plant from the period 2004 – 2008. 

Table 2. SILs to be used to determine if detailed modeling is required. 

Parameter and Averaging Time Significant Impact Level (μg) 

SO2 – 3 Hour 25 

SO2 – 24 Hour 5 

SO2 – Annual 1 

NOx - Annual 1 

PM10 - 24 Hour 5 

PM10 - Annual 1 

CO – 1 Hour 2000 

CO – 8 Hour 500 

MATERIALS TO BE SUMBITTED 

Once the modeling is completed, a final report will be prepared that describes the 

modeling exercise and results. Table(s) showing the changes in ambient impacts due to 

the project will be included as well as the results of any additional analyses performed. 

All input and output files will be supplied on CD or DVD media as appropriate for the 

APSC Docket No. 12-008-U 

Sierra Club 1-43a, Attachment 2 

Page 7 of 21
Flint Creek Dry FGD Installation Modeling Protocol November 19, 2009 

6 

amount of data being transferred. The final modeling report will also discuss in detail 

any deviations that were deemed necessary during the process of performing the 

modeling from the plans outlined in this protocol. 

APSC Docket No. 12-008-U 

Sierra Club 1-43a, Attachment 2 

Page 8 of 21
Flint Creek Dry FGD Installation Modeling Protocol November 19, 2009 

7 

APPENDIX 

BPIP INPUTS AND RESULTS FOR THE EXISTING AND FGD 

CASES

APSC Docket No. 12-008-U 

Sierra Club 1-43a, Attachment 2 

Page 9 of 21
Flint Creek Dry FGD Installation Modeling Protocol November 19, 2009 

8 

EXISTING CASE INPUT FILE 

'Flint Creek BPIPPRM Run - Existing Case' 

'P' 

'METERS' 1.0 

'UTMY' 0.00 

21 

'CTRLRM' 1 353.54 

4 24.38 

 -24.38 0.0 

 0.0 0.0 

 0.0 15.24 

 -24.38 15.24 

'TURBRM' 1 353.54 

4 30.18 

 0.0 0.0 

 24.38 0.0 

 24.38 78.03 

 0.0 78.03 

'BKRBAY' 1 353.54 

4 56.16 

 24.38 15.24 

 35.66 15.24 

 35.66 54.03 

 24.38 54.03 

'TRPHSE' 1 353.54 

4 60.65 

 24.38 54.03 

 35.66 54.03 

 35.66 70.56 

 24.38 70.56 

'BLRHSE' 1 353.54 

4 65.84 

 35.66 17.81 

 72.78 17.81 

 72.78 65.40 

 35.66 65.40 

'ECNXITDC' 1 353.54 

4 39.47 

 72.78 33.76 

 77.56 33.76 

 77.56 51.15 

 72.78 51.15 

'PCPINDCT' 1 353.54 

10 26.56 

 77.56 33.76 

 89.13 33.76 

 94.80 28.09 

 99.05 28.09 

 146.77 37.53 

 146.77 45.57 

 99.05 57.14 

 94.80 57.14 

 89.13 51.15 

 77.56 51.15 

APSC Docket No. 12-008-U 

Sierra Club 1-43a, Attachment 2 

Page 10 of 21
Flint Creek Dry FGD Installation Modeling Protocol November 19, 2009 

9 

'PREC1A' 1 353.54 

4 35.14 

 99.05 57.14 

 146.77 45.57 

 150.55 62.34 

 102.36 73.67 

'PREC1B' 1 353.54 

4 35.14 

 99.05 28.09 

 146.77 37.53 

 150.55 21.72 

 102.36 11.32 

'1ADISDCT' 1 353.54 

8 30.94 

 81.75 67.53 

 86.01 67.53 

 86.01 73.67 

 97.62 73.67 

 150.55 62.34 

 151.50 65.86 

 97.62 77.45 

 81.75 77.45 

'1BDISDCT' 1 353.54 

8 30.94 

 81.75 17.94 

 81.75 7.78 

 97.62 7.78 

 151.50 18.42 

 150.55 21.72 

 91.62 11.32 

 86.01 11.32 

 86.01 17.94 

'1AAIRHTR' 1 353.54 

4 30.94 

 72.78 53.83 

 86.01 53.83 

 86.01 67.53 

 72.78 67.53 

'1BAIRHTR' 1 353.54 

4 30.94 

 72.78 17.94 

 86.01 17.94 

 86.01 30.93 

 72.78 30.93 

'DISCHDCT' 1 353.54 

4 39.47 

 87.69 40.48 

 93.32 40.48 

 93.32 81.47 

 87.69 81.47 

'ASHSILO' 1 353.54 

8 31.70 

 149.85 41.32 

 151.98 37.77 

 155.05 36.36 

 158.79 37.77 

APSC Docket No. 12-008-U 

Sierra Club 1-43a, Attachment 2 

Page 11 of 21
Flint Creek Dry FGD Installation Modeling Protocol November 19, 2009 

10 

 160.48 41.32 

 158.79 45.57 

 155.05 47.46 

 151.98 45.57 

'SERVBDG' 1 353.54 

4 4.42 

 -2.81 101.51 

 63.94 101.51 

 63.94 121.29 

 -2.81 121.29 

'WHSETOOL' 1 353.54 

4 5.99 

 99.98 142.32 

 99.98 170.75 

 76.49 170.75 

 76.49 142.32 

'CTRRSOOF' 1 353.54 

4 5.11 

 130.50 162.75 

 130.50 171.03 

 106.39 171.03 

 106.39 162.75 

'NAVCOWHS' 1 353.54 

4 4.82 

 149.67 136.17 

 149.67 172.26 

 134.83 172.26 

 134.83 136.17 

'RSOSHOP' 1 353.54 

4 5.19 

 123.46 109.55 

 123.46 123.77 

 104.92 123.77 

 104.92 109.55 

'OILHSE' 1 353.54 

4 3.66 

 80.20 101.52 

 80.20 113.88 

 75.87 113.88 

 75.87 101.52 

1 

 'Stack' 353.54 164.59 90.56 90.13 

APSC Docket No. 12-008-U 

Sierra Club 1-43a, Attachment 2 

Page 12 of 21
Flint Creek Dry FGD Installation Modeling Protocol November 19, 2009 

11 

EXISTING CASE OUTPUT 

FLINT CREEK BPIPPRM RUN - EXISTING CASE 

 BPIP (DATED: 04274) 

 DATE : 11/12/2009 

 TIME : 15:59:53 

 FLINT CREEK BPIPPRM RUN - EXISTING CASE 

 ============================ 

 BPIP PROCESSING INFORMATION: 

 ============================ 

 THE P FLAG HAS BEEN SET FOR PREPARING DOWNWASH RELATED DATA 

 FOR A MODEL RUN UTILIZING THE PRIME ALGORITHM. 

 INPUTS ENTERED IN METERS WILL BE CONVERTED TO METERS USING 

 A CONVERSION FACTOR OF 1.0000. OUTPUT WILL BE IN METERS. 

 THE UTMP VARIABLE IS SET TO UTMY. THE INPUT IS ASSUMED TO BE IN 

 UTM COORDINATES. BPIP WILL MOVE THE UTM ORIGIN TO THE FIRST PAIR OF 

 UTM COORDINATES READ. THE UTM COORDINATES OF THE NEW ORIGIN WILL 

 BE SUBTRACTED FROM ALL THE OTHER UTM COORDINATES ENTERED TO FORM 

 THIS NEW LOCAL COORDINATE SYSTEM. 

 PLANT NORTH IS SET TO 0.00 DEGREES WITH RESPECT TO TRUE NORTH. 

 FLINT CREEK BPIPPRM RUN - EXISTING CASE 

 PRELIMINARY* GEP STACK HEIGHT RESULTS TABLE 

 (OUTPUT UNITS: METERS) 

 STACK-BUILDING PRELIMINARY* 

 STACK STACK BASE ELEVATION GEP** GEP STACK 

 NAME HEIGHT DIFFERENCES EQN1 HEIGHT VALUE 

 STACK 164.59 0.00 156.37 156.37 

 * RESULTS ARE BASED ON DETERMINANTS 1 & 2 ON PAGES 1 & 2 OF THE GEP 

 TECHNICAL SUPPORT DOCUMENT. DETERMINANT 3 MAY BE INVESTIGATED FOR 

 ADDITIONAL STACK HEIGHT CREDIT. FINAL VALUES RESULT AFTER 

 DETERMINANT 3 HAS BEEN TAKEN INTO CONSIDERATION. 

 ** RESULTS WERE DERIVED FROM EQUATION 1 ON PAGE 6 OF GEP TECHNICAL 

 SUPPORT DOCUMENT. VALUES HAVE BEEN ADJUSTED FOR ANY STACK-BUILDING 

 BASE ELEVATION DIFFERENCES. 

 NOTE: CRITERIA FOR DETERMINING STACK HEIGHTS FOR MODELING EMISSION 

 LIMITATIONS FOR A SOURCE CAN BE FOUND IN TABLE 3.1 OF THE 

 GEP TECHNICAL SUPPORT DOCUMENT. 

APSC Docket No. 12-008-U 

Sierra Club 1-43a, Attachment 2 

Page 13 of 21
Flint Creek Dry FGD Installation Modeling Protocol November 19, 2009 

12 

 BPIP (DATED: 04274) 

 DATE : 11/12/2009 

 TIME : 15:59:53 

 FLINT CREEK BPIPPRM RUN - EXISTING CASE 

 BPIP OUTPUT IS IN METERS 

 SO BUILDHGT STACK 60.65 60.65 60.65 65.84 65.84 65.84 

 SO BUILDHGT STACK 65.84 60.65 60.65 56.16 39.47 39.47 

 SO BUILDHGT STACK 39.47 39.47 65.84 65.84 56.16 60.65 

 SO BUILDHGT STACK 60.65 60.65 60.65 65.84 65.84 65.84 

 SO BUILDHGT STACK 65.84 60.65 60.65 56.16 39.47 39.47 

 SO BUILDHGT STACK 39.47 39.47 65.84 65.84 56.16 60.65 

 SO BUILDWID STACK 56.82 63.52 68.29 59.03 60.32 59.77 

 SO BUILDWID STACK 57.42 60.35 52.75 57.80 40.44 83.96 

 SO BUILDWID STACK 85.83 85.09 55.94 51.16 56.37 48.40 

 SO BUILDWID STACK 56.82 63.52 68.29 59.03 60.32 59.77 

 SO BUILDWID STACK 57.42 60.35 52.75 57.80 40.44 83.96 

 SO BUILDWID STACK 85.83 85.09 55.94 51.16 56.37 48.40 

 SO BUILDLEN STACK 53.31 57.42 59.77 60.32 59.03 55.94 

 SO BUILDLEN STACK 51.16 49.64 48.40 56.82 19.31 62.40 

 SO BUILDLEN STACK 60.19 60.32 59.77 57.42 60.35 52.75 

 SO BUILDLEN STACK 53.31 57.42 59.77 60.32 59.03 55.94 

 SO BUILDLEN STACK 51.16 49.64 48.40 56.82 19.31 62.40 

 SO BUILDLEN STACK 60.19 60.32 59.77 57.42 60.35 52.75 

 SO XBADJ STACK -80.75 -86.74 -90.08 -90.69 -88.54 -83.70 

 SO XBADJ STACK -76.32 -71.44 -66.18 -61.78 0.26 -35.18 

 SO XBADJ STACK -26.16 -16.34 -6.03 4.46 7.78 19.57 

 SO XBADJ STACK 27.44 29.32 30.31 30.37 29.52 27.76 

 SO XBADJ STACK 25.17 21.80 17.78 4.95 -19.57 -27.22 

 SO XBADJ STACK -34.03 -43.97 -53.74 -61.88 -68.13 -72.32 

 SO YBADJ STACK 33.36 23.73 13.38 -3.35 -13.81 -23.85 

 SO YBADJ STACK -33.17 -37.96 -45.95 -56.34 -27.42 -48.10 

 SO YBADJ STACK -47.77 -46.00 -55.73 -50.74 -49.99 -41.98 

 SO YBADJ STACK -33.36 -23.73 -13.38 3.35 13.81 23.85 

 SO YBADJ STACK 33.17 37.96 45.95 56.34 27.42 48.10 

 SO YBADJ STACK 47.77 46.00 55.73 50.74 49.99 41.98 

APSC Docket No. 12-008-U 

Sierra Club 1-43a, Attachment 2 

Page 14 of 21
Flint Creek Dry FGD Installation Modeling Protocol November 19, 2009 

13 

FGD CASE INPUT 

'Flint Creek BPIPPRM Run - FGD Case' 

'P' 

'METERS' 1.0 

'UTMY' 0.00 

33 

'CTRLRM' 1 353.54 

4 24.38 

 -24.38 0.0 

 0.0 0.0 

 0.0 15.24 

 -24.38 15.24 

'TURBRM' 1 353.54 

4 30.18 

 0.0 0.0 

 24.38 0.0 

 24.38 78.03 

 0.0 78.03 

'BKRBAY' 1 353.54 

4 56.16 

 24.38 15.24 

 35.66 15.24 

 35.66 54.03 

 24.38 54.03 

'TRPHSE' 1 353.54 

4 60.65 

 24.38 54.03 

 35.66 54.03 

 35.66 70.56 

 24.38 70.56 

'BLRHSE' 1 353.54 

4 65.84 

 35.66 17.81 

 72.78 17.81 

 72.78 65.40 

 35.66 65.40 

'ECNXITDC' 1 353.54 

4 39.47 

 72.78 33.76 

 77.56 33.76 

 77.56 51.15 

 72.78 51.15 

'PCPINDCT' 1 353.54 

10 26.56 

 77.56 33.76 

 89.13 33.76 

 94.80 28.09 

 99.05 28.09 

 146.77 37.53 

 146.77 45.57 

 99.05 57.14 

 94.80 57.14 

 89.13 51.15 

 77.56 51.15 

APSC Docket No. 12-008-U 

Sierra Club 1-43a, Attachment 2 

Page 15 of 21
Flint Creek Dry FGD Installation Modeling Protocol November 19, 2009 

14 

'PREC1A' 1 353.54 

4 35.14 

 99.05 57.14 

 146.77 45.57 

 150.55 62.34 

 102.36 73.67 

'PREC1B' 1 353.54 

4 35.14 

 99.05 28.09 

 146.77 37.53 

 150.55 21.72 

 102.36 11.32 

'1ADISDCT' 1 353.54 

8 30.94 

 81.75 67.53 

 86.01 67.53 

 86.01 73.67 

 97.62 73.67 

 150.55 62.34 

 151.50 65.86 

 97.62 77.45 

 81.75 77.45 

'1BDISDCT' 1 353.54 

8 30.94 

 81.75 17.94 

 81.75 7.78 

 97.62 7.78 

 151.50 18.42 

 150.55 21.72 

 91.62 11.32 

 86.01 11.32 

 86.01 17.94 

'1AAIRHTR' 1 353.54 

4 30.94 

 72.78 53.83 

 86.01 53.83 

 86.01 67.53 

 72.78 67.53 

'1BAIRHTR' 1 353.54 

4 30.94 

 72.78 17.94 

 86.01 17.94 

 86.01 30.93 

 72.78 30.93 

'DISCHDCT' 1 353.54 

4 39.47 

 87.69 40.48 

 93.32 40.48 

 93.32 81.47 

 87.69 81.47 

'ASHSILO' 1 353.54 

8 31.70 

 149.85 41.32 

 151.98 37.77 

 155.05 36.36 

 158.79 37.77 

APSC Docket No. 12-008-U 

Sierra Club 1-43a, Attachment 2 

Page 16 of 21
Flint Creek Dry FGD Installation Modeling Protocol November 19, 2009 

15 

 160.48 41.32 

 158.79 45.57 

 155.05 47.46 

 151.98 45.57 

'SERVBDG' 1 353.54 

4 4.42 

 -2.81 101.51 

 63.94 101.51 

 63.94 121.29 

 -2.81 121.29 

'WHSETOOL' 1 353.54 

4 5.99 

 99.98 142.32 

 99.98 170.75 

 76.49 170.75 

 76.49 142.32 

'CTRRSOOF' 1 353.54 

4 5.11 

 130.50 162.75 

 130.50 171.03 

 106.39 171.03 

 106.39 162.75 

'NAVCOWHS' 1 353.54 

4 4.82 

 149.67 136.17 

 149.67 172.26 

 134.83 172.26 

 134.83 136.17 

'RSOSHOP' 1 353.54 

4 5.19 

 123.46 109.55 

 123.46 123.77 

 104.92 123.77 

 104.92 109.55 

'OILHSE' 1 353.54 

4 3.66 

 80.20 101.52 

 80.20 113.88 

 75.87 113.88 

 75.87 101.52 

'FGDINDCT' 1 353.54 

7 35.66 

 102.57 -6.18 

 118.02 -6.18 

 103.80 0.62 

 93.32 11.74 

 93.32 43.27 

 87.69 43.27 

 87.69 9.89 

'INLPLNM' 1 353.54 

6 37.03 

 102.57 -6.18 

 118.02 -6.18 

 118.02 -18.54 

 130.27 -27.82 

 90.71 -27.82 

APSC Docket No. 12-008-U 

Sierra Club 1-43a, Attachment 2 

Page 17 of 21
Flint Creek Dry FGD Installation Modeling Protocol November 19, 2009 

16 

 102.57 -18.54 

'FNGRDCTS' 1 353.54 

4 38.86 

 90.71 -27.82 

 130.27 -27.82 

 130.27 -32.77 

 90.71 -32.77 

'SDAINLT' 1 353.54 

4 38.86 

 90.71 -32.77 

 130.27 -32.77 

 130.27 -36.48 

 90.71 -36.48 

'SDAUNIT' 1 353.54 

4 46.18 

 90.71 -36.48 

 130.27 -36.48 

 130.27 -52.55 

 90.71 -52.55 

'SDAOUTLT' 1 353.54 

7 22.86 

 116.05 -82.83 

 116.05 -69.24 

 65.36 -69.24 

 65.36 -72.95 

 69.69 -75.42 

 91.32 -75.42 

 104.30 -82.83 

'BAGHOUSE' 1 353.54 

4 30.40 

 123.46 -133.52 

 123.46 -82.83 

 96.88 -82.83 

 96.88 -133.52 

'DISFANS' 1 353.54 

15 6.25 

 80.82 -65.52 

 80.82 -32.14 

 76.49 -23.49 

 76.49 -15.45 

 93.18 4.94 

 87.69 9.89 

 70.93 -12.98 

 70.93 -23.49 

 65.36 -32.14 

 65.36 -65.52 

 69.07 -65.52 

 69.07 -32.14 

 73.40 -28.43 

 77.73 -32.14 

 77.73 -65.52 

'SDAMECH' 1 353.54 

4 28.04 

 125.32 -76.66 

 125.32 -71.71 

 116.05 -71.71 

APSC Docket No. 12-008-U 

Sierra Club 1-43a, Attachment 2 

Page 18 of 21
Flint Creek Dry FGD Installation Modeling Protocol November 19, 2009 

17 

 116.05 -76.66 

'LIMEASHS' 1 353.54 

8 31.70 

 161.59 41.32 

 163.66 37.77 

 166.79 36.36 

 170.53 37.77 

 172.22 41.32 

 170.53 45.57 

 166.79 47.46 

 163.66 45.57 

'LAMBDG' 1 353.54 

4 5.49 

 182.25 33.90 

 182.25 48.12 

 172.98 48.12 

 172.98 33.90 

'SDASGBDG' 1 353.54 

4 5.49 

 78.34 -121.16 

 78.34 -87.78 

 63.51 -87.78 

 63.51 -121.16 

1 

 'Stack' 353.54 164.59 90.56 90.13 

APSC Docket No. 12-008-U 

Sierra Club 1-43a, Attachment 2 

Page 19 of 21
Flint Creek Dry FGD Installation Modeling Protocol November 19, 2009 

18 

FGD CASE OUTPUT 

Flint Creek BPIPPRM Run - FGD Case 

 BPIP (Dated: 04274) 

 DATE : 11/13/2009 

 TIME : 10:14:51 

 Flint Creek BPIPPRM Run - FGD Case 

 ============================ 

 BPIP PROCESSING INFORMATION: 

 ============================ 

 The P flag has been set for preparing downwash related data 

 for a model run utilizing the PRIME algorithm. 

 Inputs entered in METERS will be converted to meters using 

 a conversion factor of 1.0000. Output will be in meters. 

 The UTMP variable is set to UTMY. The input is assumed to be in 

 UTM coordinates. BPIP will move the UTM origin to the first pair of 

 UTM coordinates read. The UTM coordinates of the new origin will 

 be subtracted from all the other UTM coordinates entered to form 

 this new local coordinate system. 

 Plant north is set to 0.00 degrees with respect to True North. 

 Flint Creek BPIPPRM Run - FGD Case 

 PRELIMINARY* GEP STACK HEIGHT RESULTS TABLE 

 (Output Units: meters) 

 Stack-Building Preliminary* 

 Stack Stack Base Elevation GEP** GEP Stack 

 Name Height Differences EQN1 Height Value 

 Stack 164.59 0.00 156.37 156.37 

 * Results are based on Determinants 1 & 2 on pages 1 & 2 of the GEP 

 Technical Support Document. Determinant 3 may be investigated for 

 additional stack height credit. Final values result after 

 Determinant 3 has been taken into consideration. 

 ** Results were derived from Equation 1 on page 6 of GEP Technical 

 Support Document. Values have been adjusted for any stack-building 

 base elevation differences. 

 Note: Criteria for determining stack heights for modeling emission 

 limitations for a source can be found in Table 3.1 of the 

 GEP Technical Support Document. 

APSC Docket No. 12-008-U 

Sierra Club 1-43a, Attachment 2 

Page 20 of 21
Flint Creek Dry FGD Installation Modeling Protocol November 19, 2009 

19 

 BPIP (Dated: 04274) 

 DATE : 11/13/2009 

 TIME : 10:14:51 

 Flint Creek BPIPPRM Run - FGD Case 

 BPIP output is in meters 

 SO BUILDHGT Stack 60.65 60.65 60.65 65.84 65.84 65.84 

 SO BUILDHGT Stack 65.84 60.65 60.65 56.16 39.47 39.47 

 SO BUILDHGT Stack 39.47 39.47 65.84 65.84 56.16 60.65 

 SO BUILDHGT Stack 60.65 60.65 60.65 65.84 65.84 65.84 

 SO BUILDHGT Stack 65.84 60.65 60.65 56.16 39.47 39.47 

 SO BUILDHGT Stack 39.47 39.47 65.84 65.84 56.16 60.65 

 SO BUILDWID Stack 56.82 63.52 68.29 59.03 60.32 59.77 

 SO BUILDWID Stack 57.42 60.35 52.75 57.80 40.44 83.96 

 SO BUILDWID Stack 85.83 85.09 55.94 51.16 56.37 48.40 

 SO BUILDWID Stack 56.82 63.52 68.29 59.03 60.32 59.77 

 SO BUILDWID Stack 57.42 60.35 52.75 57.80 40.44 83.96 

 SO BUILDWID Stack 85.83 85.09 55.94 51.16 56.37 48.40 

 SO BUILDLEN Stack 53.31 57.42 59.77 60.32 59.03 55.94 

 SO BUILDLEN Stack 51.16 49.64 48.40 56.82 19.31 62.40 

 SO BUILDLEN Stack 60.19 60.32 59.77 57.42 60.35 52.75 

 SO BUILDLEN Stack 53.31 57.42 59.77 60.32 59.03 55.94 

 SO BUILDLEN Stack 51.16 49.64 48.40 56.82 19.31 62.40 

 SO BUILDLEN Stack 60.19 60.32 59.77 57.42 60.35 52.75 

 SO XBADJ Stack -80.75 -86.74 -90.08 -90.69 -88.54 -83.70 

 SO XBADJ Stack -76.32 -71.44 -66.18 -61.78 0.26 -35.18 

 SO XBADJ Stack -26.16 -16.34 -6.03 4.46 7.78 19.57 

 SO XBADJ Stack 27.44 29.32 30.31 30.37 29.52 27.76 

 SO XBADJ Stack 25.17 21.80 17.78 4.95 -19.57 -27.22 

 SO XBADJ Stack -34.03 -43.97 -53.74 -61.88 -68.13 -72.32 

 SO YBADJ Stack 33.36 23.73 13.38 -3.35 -13.81 -23.85 

 SO YBADJ Stack -33.17 -37.96 -45.95 -56.34 -27.42 -48.10 

 SO YBADJ Stack -47.77 -46.00 -55.73 -50.74 -49.99 -41.98 

 SO YBADJ Stack -33.36 -23.73 -13.38 3.35 13.81 23.85 

 SO YBADJ Stack 33.17 37.96 45.95 56.34 27.42 48.10 

 SO YBADJ Stack 47.77 46.00 55.73 50.74 49.99 41.98 

APSC Docket No. 12-008-U 

Sierra Club 1-43a, Attachment 2 

Page 21 of 21