RESULTS OF THE NOVEMBER 2014 EMISSIONS TESTING 

OF THE ANODE BAKING FURNACE (A-446 SCRUBBER) 

Century Aluminum Sebree, LLC 

Robards, Kentucky

Submitted to: 

Brandon Coomes 

Century Aluminum Sebree, LLC 

9404 State Route 2096 

Robards, Kentucky 42452 

Prepared by: 

GEL Engineering, LLC 

Post Office Box 30712 

Charleston, South Carolina 29417 

December 19, 2014 

 
GEL Engineering, LLC 

A Member of The GEL Group, Inc. 

Nsas01214 

RESULTS OF THE NOVEMBER 2014 EMISSIONS TESTING OF 

THE ANODE BAKING FURNACE (A-446 SCRUBBER) 

 

Century Aluminum Sebree, LLC 

Robards, Kentucky

Table of Contents 

Section Subject Page 

 Signature Page .................................................................................................. iii 

 Executive Summary ........................................................................................... iv 

1.0 Introduction ...................................................................................................... 1 

2.0 Test Results ....................................................................................................... 1 

3.0 Location of Sampling ........................................................................................ 2 

4.0 Detailed Process Description ............................................................................ 2 

5.0 Identification of Method(s) Used ..................................................................... 2 

 5.1 Stack Sampling Locations ......................................................................... 3 

 5.2 Velocity and Volumetric Flow Rates ........................................................ 3 

 5.3 Dry Molecular Weight .............................................................................. 3 

 5.4 Moisture Content .................................................................................... 3 

 5.5 Emissions Determinations ....................................................................... 3 

 5.5.1 Fluoride Emissions Determination .............................................. 3 

 5.5.2 Polycyclic Organic Matter................................................... ............. 4 

6.0 Description of Source(s) Tested ........................................................................ 4 

7.0 Date of Performance Test ................................................................................. 4 

8.0 Test Plan and Procedures ................................................................................. 4 

9.0 Identification of Substance, Material or Product Sampled .............................. 4 

10.0 Deviations/Additions/Exclusions – Test Plan/ 

 Test Methods/Quality Manual ......................................................................... 4 

11.0 Specific Test Conditions/Environmental Conditions ........................................ 4 

12.0 Test Results: Uncertainty/Errors/Limiting Conditions ..................................... 4 
ii 

GEL Engineering, LLC 

A Member of The GEL Group, Inc. 

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RESULTS OF THE NOVEMBER 2014 EMISSIONS TESTING OF 

THE ANODE BAKING FURNACE (A-446 SCRUBBER) 

 

Century Aluminum Sebree, LLC 

Robards, Kentucky

Table of Contents (Cont.) 

Section Subject Page 

13.0 Equipment Calibration Certificates .................................................................. 4 

 13.1 Nozzles ..................................................................................................... 5 

 13.2 Pitot Tubes ............................................................................................... 5 

 13.3 Dry Gas Meter .......................................................................................... 5 

 13.4 Thermocouples ........................................................................................ 5 

 13.5 Balance ..................................................................................................... 5 

 13.6 Barometer ................................................................................................ 5 

14.0 Documentation and Sufficient Raw Data to 

 Verify and Reproduce Report Calculations ...................................................... 5 

Tables 

1 Stationary Source Test Log 

2 Capture Summary 

3 Concentration Summary 

4 Emissions Summary 

5 Production Based Emissions Summary 

Appendices 

I Summary of Test Results 

II Field Data Sheets 

III Test Method Formulas and Nomenclature 

IV Analytical Data 

V Plant Process Data 

VI Equipment Calibration Records 
iii 

GEL Engineering, LLC 

A Member of The GEL Group, Inc. 

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Signature Page

This document entitled, “Results of the November 2014 Emissions Testing of the Anode Baking 

Furnace (A-446 Scrubber),” has been prepared and reviewed by the undersigned at the request of 

and for the exclusive use of Century Aluminum Sebree, LLC facility located in Robards, Kentucky. It 

has been prepared in accordance with accepted quality control practices and it has been reviewed 

by the undersigned. 

Craig McKenzie, QSTI 

Senior Project Manager 

Kirk Alexander 

Senior Project Manager 

Keith McCullock 

Industrial Services Business Unit Manager 

December 19, 2014 

Date 

 
iv 

GEL Engineering, LLC 

A Member of The GEL Group, Inc. 

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Executive Summary 

Emission testing of the Anode Baking Furnace (A-446 Scrubber) located at the Century Aluminum 

Sebree, LLC facility in Robards, Kentucky, was performed by GEL Engineering, LLC (GEL) personnel 

on November 20-21, 2014. The following table provides a comparison of measured emission rates 

versus the permitted emission limits: 

A-446 SCRUBBER - EMISSIONS TEST RESULTS 

(Three-Run Averages) 

Pollutant (lb/hr)1 

(lb/ton anode 

processed)1,2 Permit Limit 

Total Fluoride 0.24 0.0015 0.20 lb/ton anode 

POM 0.59 0.037 0.18 lb/ton anode 

1

Note: This is the sum of all three (3) reactor runs. 

2

Note: lbs/ton processed = pounds per ton of aluminum processed. The green anode throughput for 

November was 15.9 tons per hour. 
GEL Engineering, LLC 

A Member of The GEL Group, Inc. 

Nsas01214 

RESULTS OF THE NOVEMBER 2014 EMISSIONS TESTING OF 

THE ANODE BAKING FURNACE (A-446 SCRUBBER) 

 

Century Aluminum Sebree, LLC 

Robards, Kentucky 

1.0 INTRODUCTION 

Stationary source sampling of the Anode Baking Furnace (A-446 Scrubber) located at the 

Century Aluminum Sebree, LLC (Century Aluminum) facility in Robards, Kentucky was 

performed by GEL Engineering, LLC (GEL) personnel on November 20-21, 2014. 

This test program consisted of determining the emissions of fluoride (Fl) and polycyclic 

organic matter (POM) from the source. These tests were conducted to demonstrate 

compliance with Title 40 of the Code of Federal Regulations Part 63, Subpart LL (40 CFR 63, 

Subpart LL) and Kentucky Department for Environmental Protection (DEP) Division for Air 

Quality (DAQ) permit number V-12-015 (Revision 2). 

The following table summarizes the participants in the testing event: 

Name Job Role Affiliation 

Craig McKenzie, QSTI Project Manager GEL 

Gregg Szymkowicz Field Team Leader GEL 

Sean Huber Sampling Technician GEL 

Charles Rice Sampling Technician GEL 

Derek Anderson Sampling Technician GEL 

Brandon Coomes Facility Contact Century Aluminum 

Paul Stratton Regulatory Observer DEP 

2.0 TEST RESULTS 

Testing on the Anode Baking Furnace consisted of sampling at each of the three A-446 

Scrubber stacks for one 240-minute run. There are a total of three stacks, one stack per 

scrubber reactor, which comprise the emission points of the Anode Baking Furnace dry 

scrubber/baghouse system. Testing was conducted using the following United States 

Environmental Protection Agency (EPA) methodologies. 

Parameter Test Method(s) 

Gas Flow Rates and Temperature 1 & 2 

Dry Molecular Weight 3 

Moisture Content 4 

Fl 13B 

POM 315 
Results of the November 2014 Emissions Testing of the 

Anode Baking Furnace (A-446 Scrubber) December 19, 2014 

Century Aluminum Sebree, LLC, Robards, Kentucky Page 2 

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A Member of The GEL Group, Inc. 

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. 

 

 Data is presented in Tables 2-5 as noted below: 

Table Description 

2 Capture summary 

3 Concentration summary 

4 Calculated mass emission rates for each pollutant 

5 Production based emissions summary 

The test results for this sampling event are also provided in the Executive Summary of this 

report. The summary of test results, test method formulas and nomenclature, field data 

sheets, analytical data, plant process data, and equipment calibration records are enclosed 

in Appendices I through VI, respectively.

3.0 LOCATION OF SAMPLING 

Stationary source sampling was conducted on the Anode Baking Furnace A-446 Scrubber. 

As detailed previously, the A-446 Scrubber has three exhaust stacks. As per the approved 

Site-Specific Test Plan (SSTP), each stack associated with the bake oven was sampled for 

240-minutes. 

4.0 DETAILED PROCESS DESCRIPTION 

The Anode Baking Furnace is the oven process from the production of carbon 

anodes which are used on-site in the potlines. The carbon anodes are a mixture of 

carbon coke and tar pitch, which is formed into green anodes in the Green Mill. The 

green anodes are placed in a ring furnace for a bake cycle, which consists of preheating, baking, and cooling. The furnace operates continuously with a production 

rate of approximately 400 anodes per day. After cooling, the baked anodes are 

supplied to the potlines for the use in the production process. The emissions from 

the baking furnace are ducted to a dry aluminum scrubber, also known as A-446 

Scrubber, which cleans the gases emitted by the baking process. The scrubber 

employs a baghouse to control the particulate emissions. 

5.0 IDENTIFICATION OF METHOD(S) USED 

Test parameters and sampling methods for the test program are summarized in Table 1. 

Sampling methods and analytical procedures recommended by the EPA were used during 

this test program. Laboratory and calibration procedures described in EPA Quality 

Assurance Handbook for Air Pollution Control Systems, Vol. III, (EPA/600/R-94/038c), and 

the QA/QC procedures specified in EPA Reference Methods 1, 2, 3, 4, 13B, and 315 were 

followed during execution of the test program. The sampling and analytical methodologies 

are described below. 
Results of the November 2014 Emissions Testing of the 

Anode Baking Furnace (A-446 Scrubber) December 19, 2014 

Century Aluminum Sebree, LLC, Robards, Kentucky Page 3 

GEL Engineering, LLC 

A Member of The GEL Group, Inc. 

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5.1 Stack Sampling Locations 

EPA Method 1 was used to determine the number and location of the sampling points for 

flow determination of the A-446 Scrubber. The approved SSTP detailed that each stack 

would be sampled for 240 minutes. The test points for the both sources are presented in 

Appendix II. Each stack is a 50.5-inch diameter stack and the sampling platform is located 

approximately 125 feet above the base of the stack. As specified by Method 1, a horizontal 

cross section of each stack was divided 24 equal areas with 12 traverse points located on 

one perpendicular diameter. 

5.2 Velocity and Volumetric Flow Rates 

EPA Method 2 was used to determine the stack gas velocity and volumetric flow 

rates for the Main Stack. Velocity and volumetric flow rates were calculated based 

on the average of the measurements for each test run. The temperature of the 

stack was measured by a calibrated Type K Thermocouple positioned in the stack in 

accordance with EPA Method 2. 

5.3 Dry Molecular Weight 

In accordance with the guidelines in EPA Method 2, the dry molecular weight was assumed 

to be that of ambient air or 29.0.

5.4 Moisture Content

EPA Method 4 was used to determine the moisture content of the stack gas. Following the 

protocol given in Method 4, the volume of the condensed water vapor collected in the 

impingers and the silica gel were weighed before and after sample collection. The 

difference in the two weights of the silica gel, the difference in the two weights of 

condensed water vapor captured in the impingers, and the volume of air sampled with the 

impingers train were used to calculate the moisture content of the stack gas. 

5.5 Emissions Determinations 

Sampling methods and analytical procedures recommended by the EPA were used 

during this test program. The sampling and analytical methodologies are described 

below. 

5.5.1 Fluoride Emissions Determinations 

One 240-minute test run was performed at each stack. The sampling train was equipped 

with a glass nozzle, a glass probe liner, a paper fiber filter, two impingers charged with 

deionized water, an empty knock-out impinger, and an impinger charged with silica gel. 

The Fl emissions were collected isokinetically through a heated sampling probe onto the 

heated filters. After completion of each sampling run, the sample train components 

including the nozzle, probe, and filter housing were rinsed and scrubbed until clean after 

each test run as per EPA Method 13B. The probe rinse/filter sample fractions, impinger 

solutions collected from each run, and a field blank were then submitted to the Element 
Results of the November 2014 Emissions Testing of the 

Anode Baking Furnace (A-446 Scrubber) December 19, 2014 

Century Aluminum Sebree, LLC, Robards, Kentucky Page 4 

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A Member of The GEL Group, Inc. 

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One laboratory and analyzed to determine particulate/gaseous Fl emissions. 

5.5.2 Polycyclic Organic Matter 

One 4-hour test runs using EPA Method 315 to determine the POM emission rates were 

conducted on each stack. The sampling train was equipped with a Pyrex nozzle and probe 

liner, a high purity quartz filter, one Greenburg-Smith impinger and one standard impinger 

both charged with deionized water, one empty standard impinger, and one impinger 

charged with silica gel. POM emissions were collected isokinetically through the nozzle and 

probe onto the heated filter. The sample train components, including the nozzle, probe, 

and filter housing, were rinsed and scrubbed until clean after each test run as per EPA 

Method 315. The samples were marked, labeled, and shipped to Resolution Analytics for 

analysis. 

6.0 DESCRIPTION OF SOURCE(S) TESTED 

Refer to Section 4.0 for a detailed description of each source. 

7.0 DATE OF PERFORMANCE TEST 

The performance test was conducted on November 20-21, 2014. 

8.0 TEST PLAN AND PROCEDURES 

A test plan was submitted to DEP by Century Aluminum for this performance test. Refer to 

Table 1 for a summary of the test parameters and sampling methods for the test program. 

9.0 IDENTIFICATION OF SUBSTANCE, MATERIAL OR PRODUCT SAMPLED 

Emission testing of the exhaust flue gas of the Anode Bake Oven A-446 was performed for 

Fl and POM. 

10.0 DEVIATIONS/ADDITIONS/EXCLUSIONS – TEST PLAN/TEST METHODS/QUALITY 

MANUAL 

A test plan was required for this performance test. The performance test was executed 

without any deviations, additions or exclusions to the test methods detailed in the test plan 

and GEL’s quality manual. 

11.0 SPECIFIC TEST CONDITIONS/ENVIRONMENTAL CONDITIONS

The Anode Baking Furnace process was operating under normal conditions. 

12.0 TEST RESULTS: UNCERTAINTY/ERRORS/LIMITING CONDITIONS 

The performance test was performed as per the test methods. There were no limiting 

conditions or errors during the execution of this testing event. 

13.0 EQUIPMENT CALIBRATION CERTIFICATES 

Equipment calibration data is included in Appendix VI. 
Results of the November 2014 Emissions Testing of the 

Anode Baking Furnace (A-446 Scrubber) December 19, 2014 

Century Aluminum Sebree, LLC, Robards, Kentucky Page 5 

GEL Engineering, LLC 

A Member of The GEL Group, Inc. 

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13.1 Nozzles

Each nozzle is purchased from a stack testing equipment supplier and inspected and 

calibrated before putting it into field use. Thereafter, it is inspected prior to use and if 

damaged, the nozzle is not used. A set of three measurements is made prior to use and 

must be within 0.002 inches. Nozzles are checked prior and after each source test. 

13.2 Pitot Tubes

All pitot tubes used by GEL are purchased along with the probe assembly from a stack 

testing equipment supplier. Prior to being used, the pitot tubes are calibrated as per 

Method 2. Pitot tubes are inspected before each source test and receive a complete 

calibration once per year. 

13.3 Dry Gas Meter 

Complete dry gas meter calibrations are performed annually. After a source test, a single 

point calibration is conducted at the average orifice meter (DH) and maximum vacuum 

readings encountered during the test. If the dry gas meter calibration factor differs from 

the annual calibration by more than +/- 0.05, it is repaired and given another annual 

calibration. 

13.4 Thermocouples

Each new thermocouple purchased by GEL is checked and calibrated prior to use. After 

each source test, all temperature-sensing devices used receive a one-point calibration 

check as per Method 2. 

13.5 Balance

GEL technicians utilize an Ohaus Model E12140 Serial No. G2391121320091P balance. 

The serial number for the calibration weight set is 39325. A copy of the calibration log will 

be provided upon request. 

13.6 Barometer

GEL utilizes the National Weather Service to determine the current barometric pressure. 

This is obtained either by telephone or using the Internet. 

14.0 DOCUMENTATION AND SUFFICIENT RAW DATA TO VERIFY AND REPRODUCE 

REPORT CALCULATIONS 

The field data sheets for this testing event are included in Appendix II, with the laboratory 

analytical data presents in Appendix IV. Test method formulas and nomenclature are 

included in Appendix III. Facility process data is included in Appendix V. 
TABLES 
Parameter EPA Methods

Gas Flow Rates and Temperature 1 & 2

Gas Molecular Weight 3A

Moisture Content 4

 Fluoride 13B

Polycyclic Organic Matter (POM) 315

 Run Number 

Parameter Source Units Stack 1 Stack 2 Stack 3 Average

Particulate Fluoride Exhaust mg 0.08 0.05 0.33 0.15

Gaseous Fluoride Exhaust mg 0.14 0.41 0.40 0.32

POM Exhaust mg 2.5 16.1 9.2 9.27

Notes:

 mg = milligrams

Anode Bake Oven Process

Century Aluminum Sebree, LLC

Robards, Kentucky

3 Runs 11/20-21/2014

3 Runs 11/20-21/2014

TABLE 2

POLLUTANT CAPTURE SUMMARY

3 Runs 11/20-21/2014

3 Runs 11/20-21/2014

3 Runs 11/20-21/2014

TABLE 1

STATIONARY SOURCE TEST LOG

Anode Bake Oven Process

Century Aluminum Sebree, LLC

Robards, Kentucky

Duration Dates
 Run Number 

Parameter Source Units Stack 1 Stack 2 Stack 3 Average

Particulate Fluoride Exhaust grains/dscf 6.62E-06 3.62E-06 2.80E-05 1.27E-05

Gaseous Fluoride Exhaust grains/dscf 1.11E-05 3.00E-05 3.45E-05 2.52E-05

POM Exhaust grains/dscf 2.34E-04 1.68E-03 8.77E-04 9.30E-04

Notes:

 grains/dscf = grains per dry standard cubic feet

 Run Number 

Parameter Source Units Stack 1 Stack 2 Stack 3 Average

Particulate Fluoride Exhaust lb/hr 1.12E-03 7.90E-04 6.04E-03 2.65E-03

Gaseous Fluoride Exhaust lb/hr 1.88E-03 6.54E-03 7.43E-03 5.29E-03

POM Exhaust lb/hr 0.04 0.37 0.18 0.20

Notes:

 lbs/hr = pounds per hour

Robards, Kentucky

Century Aluminum Sebree, LLC

Robards, Kentucky

TABLE 4

MASS EMISSIONS SUMMARY

Anode Bake Oven Process

Century Aluminum Sebree, LLC

TABLE 3

POLLUTANT CONCENTRATION SUMMARY

Anode Bake Oven Process
TABLE 5

PRODUCTION BASED EMISSIONS SUMMARY

Anode Bake Oven Process

Century Aluminum Sebree, LLC

Robards, Kentucky

Parameter Source Units Stack 1 Stack 2 Stack 3 Mean Permit Limit

Total Fluoride Exhaust lb/ton anode 1.89E-04 4.61E-04 8.47E-04 4.99E-04 -

POM Exhaust lb/ton anode 0.002 0.023 0.011 0.012 -

Total Fluoride 3 Reactors lb/ton anode 0.0015 0.20

POM 3 Reactors lb/ton anode 0.0369 0.18

Notes:

 lb/ton anode = pounds per ton of green anode processed.
 

APPENDIX I 

SUMMARY OF TEST RESULTS 
SUMMARY OF TEST RESULTS

POLYCYCLIC ORGANIC MATTER

ANODE BAKE OVEN EXHAUST

EPA Method 315

[Raw Data]

Century Aluminum Sebree, LLC

Robards, Kentucky

Run Number

Stack 1 Stack 2 Stack 3 Mean

Date Date of Test 11/21/2014 11/21/2014 11/21/2014 -

Start Start Time, Particulate Matter 7:53 AM 7:53 AM 7:53 AM -

Stop Stop Time, Particulate Matter 11:55 AM 11:55 AM 11:55 AM -

q Total Sampling Time, Particulate Matter 240.0 240.0 240.0 240.0

Pbar Barometric Pressure, in. Hg 29.95 29.95 29.95 29.95

Ds(w) Stack Diameter (Width), inches 50.50 50.50 50.50 50.50

Ds(d) Stack Diameter (Depth), inches 0.00 0.00 0.00 0.00

Dn Nozzle Diameter, inches 0.300 0.250 0.273 0.274

DP Average Velocity Head of Stack Gas, in. H2O 0.235 0.402 0.337 0.325

SQDP Average Squareroot Velocity Head of Stack Gas, 0.485 0.634 0.581 0.570

in. H2O

DH Average Pressure Differential 1.371 1.212 1.453 1.350

Across the Orifice Meter, in. H2O

Tm Absolute Dry Gas Meter Temperature, °F 38.9 39.5 41.2 40.0

Ts Absolute Stack Temperature, °F 169.5 177.0 170.5 172.0

Pg Stack Static Pressure, in. H2O -0.15 -0.25 -0.20 -0.20

Vlc Total Volume of Water Vapor Condensed 200.2 182.0 199.9 194.0

in Impingers, ml

Vwsg Total Volume of Water Vapor Condensed 19.8 11.2 29.3 20.1

in Silica Gel, g

%CO2 Percent CO2 by Volume, Dry Basis 1.50 1.50 1.50 1.50

%O2 Percent O2 by Volume, Dry Basis 18.10 18.10 18.10 18.10

%CO Percent CO by Volume, Dry Basis 0.0 0.0 0.0 0.0

%N2 Percent N2 by Volume, Dry Basis 80.40 80.40 80.40 80.40

Vm Volume of Gas Sample as 156.067 138.312 153.449 149.276

measured by Dry Gas Meter, dcf

Y Dry Gas Meter Calibration Factor 0.9930 1.0080 0.9970 0.9993

Cp Pitot Coefficient 0.83 0.84 0.84 0.84

Mn(POM) Polycyclic Organic Matter (POM) Catch, μg1

2,500 16,100 9,200 9,267

MW(C) Molecular Weight of Carbon, g/mole 12.00 12.00 12.00 12.00

MW(O2) Molecular Weight of Oxygen, g/mole 32.00 32.00 32.00 32.00

Tstd Standard Temperature, °R 528 528 528 528

Pstd Standard Pressure, in. Hg 29.92 29.92 29.92 29.92

1

Results blank corrected.
SUMMARY OF TEST RESULTS

POLYCYCLIC ORGANIC MATTER

ANODE BAKE OVEN EXHAUST

EPA Method 315

[Flowrate Calculations]

Century Aluminum Sebree, LLC

Robards, Kentucky

Run Number

Stack 1 Stack 2 Stack 3 Mean

An Cross Sectional Area of Nozzle, square feet 0.000491 0.000341 0.000406 0.000413

As Cross Sectional Area of Stack, square feet 13.91 13.91 13.91 13.91

Tm Absolute Dry Gas Meter Temperature, °R 499 500 501 500

Ts Absolute Stack Temperature, °R 630 637 631 633

Vmstd Volume of Gas Sample Measured by the Dry Gas 164.731 147.960 161.906 158.199

Meter, corrected to Standard Conditions, dscf

Vwcstd Volume of Water Vapor Condensed in the Impingers, 9.42 8.57 9.41 9.13

Corrected to Standard Conditions

Vwsgstd Volume of Water Vapor Condensed in the Silica Gel, 0.93 0.53 1.38 0.95

Corrected to Standard Conditions

Bws Water Vapor in the Gas Stream, proportion 0.059 0.058 0.062 0.060

by volume

Md Molecular Weight of Stack Gas, Dry Basis, lb/lb-mole 28.96 28.96 28.96 28.96

Ms Molecular Weight of Stack Gas, Wet Basis, lb/lb-mole 28.32 28.33 28.28 28.31

Ps Absolute Stack Gas Pressure, in. Hg 29.94 29.93 29.94 29.94

Vs Average Stack Gas Velocity, ft/sec 29.66 39.46 36.02 35.05

Qa Wet Volumetric Stack Gas Flow Rate at Actual 24,750 32,930 30,060 29,250

Conditions, acf/min

Qa Wet Volumetric Stack Gas Flow Rate at Actual 1,485,300 1,976,000 1,803,700 1,755,000

Conditions, acf/hr

Qs Dry Volumetric Stack Gas Flow Rate corrected 1,172,000 1,543,000 1,417,000 1,377,000

to Standard Conditions, dscf/hr

Qs Dry Volumetric Stack Gas Flow Rate corrected 19,530 25,720 23,620 22,960

to Standard Conditions, dscf/min

% I Isokinetics, % 99.5 97.8 97.9 98.4
SUMMARY OF TEST RESULTS

ANODE BAKE OVEN EXHAUST

EPA Method 315

[Pollutant Calculations]

Century Aluminum Sebree, LLC

Robards, Kentucky

Run Number

Stack 1 Stack 2 Stack 3 Mean

Cs(POM) Concentration of POM, grains/dscf 2.34E-04 1.68E-03 8.77E-04 9.30E-04

Cs(POM) Concentration of POM, mg/dscm 0.5 3.8 2.0 2.1

Mp(POM) Total POM Emissions Rate, lb/hr 0.04 0.37 0.18 0.20

Mp(POM) Total POM Emissions Rate, lb/hr Total for 3 Reactors) 0.59

PR(anode) Production Rate, tons/hr green anode processed 15.90 15.90 15.90 15.90

Mp(POM) POM Emissions Factor, lb/ton green anode processed 0.002 0.023 0.011 0.012

Mp(POM) POM Emissions Factor, lb/ton green anode processed (Total) 0.0369
SUMMARY OF TEST RESULTS

ANODE BAKE OVEN EXHAUST

EPA Method 13B

[Raw Data]

Century Aluminum Sebree, LLC

Robards, Kentucky

Run Number

Stack 1 Stack 2 Stack 3 Mean

Date Date of Test 12/20/2014 12/20/2014 12/20/2014 -

Start Start Time, Particulate Matter 3:15 PM 3:15 PM 3:15 PM -

Stop Stop Time, Particulate Matter 7:19 PM 7:19 PM 7:19 PM -

θ Total Sampling Time, Particulate Matter 240.0 240.0 240.0 240.0

Pbar Barometric Pressure, in. Hg 29.70 29.70 29.70 29.70

Ds(w) Stack Diameter (Width), inches 50.50 50.50 50.50 50.50

Ds(d) Stack Diameter (Depth), inches 0.00 0.00 0.00 0.00

Dn Nozzle Diameter, inches 0.320 0.300 0.273 0.298

DP Average Velocity Head of Stack Gas, in. H2O 0.244 0.401 0.392 0.346

SQDP Average Squareroot Velocity Head of Stack Gas, 0.494 0.633 0.626 0.580

in. H2O

DH Average Pressure Differential 1.883 2.508 1.646 2.010

Across the Orifice Meter, in. H2O

Tm Absolute Dry Gas Meter Temperature, °F 46.5 41.3 36.8 42.0

Ts Absolute Stack Temperature, °F 170.1 173.7 174.9 173.0

Pg Stack Static Pressure, in. H2O -0.15 -0.25 -0.20 -0.20

Vlc Total Volume of Water Vapor Condensed 228.1 264.7 232.4 241.7

in Impingers, ml

Vwsg Total Volume of Water Vapor Condensed 37.2 53.2 37.8 42.7

in Silica Gel, g

%CO2 Percent CO2 by Volume, Dry Basis 1.50 1.50 1.50 1.50

%O2 Percent O2 by Volume, Dry Basis 18.03 18.03 18.03 18.03

%CO Percent CO by Volume, Dry Basis 0.0 0.0 0.0 0.0

%N2 Percent N2 by Volume, Dry Basis 80.47 80.47 80.47 80.47

Vm Volume of Gas Sample as 182.860 200.882 169.657 184.466

measured by Dry Gas Meter, dcf

Y Dry Gas Meter Calibration Factor 0.9930 1.0080 0.9970 0.9993

Cp Pitot Coefficient 0.83 0.84 0.84 0.84

Mn(Fl) Particulate Fluoride Catch, μg 81 < 50 325 200

Mn(Fl) Gaseous Fluoride Catch, μg 136 414 400 317

Mn(Fl) Total Fluoride Catch, μg 217 464 725 469

MW(C) Molecular Weight of Carbon, g/mole 12.00 12.00 12.00 12.00

MW(O2) Molecular Weight of Oxygen, g/mole 32.00 32.00 32.00 32.00

Tstd Standard Temperature, °R 528 528 528 528

Pstd Standard Pressure, in. Hg 29.92 29.92 29.92 29.92
SUMMARY OF TEST RESULTS

ANODE BAKE OVEN EXHAUST

EPA Method 13B

[Flowrate Calculations]

Century Aluminum Sebree, LLC

Robards, Kentucky

Run Number

Stack 1 Stack 2 Stack 3 Mean

An Cross Sectional Area of Nozzle, square feet 0.000559 0.000491 0.000406 0.000485

As Cross Sectional Area of Stack, square feet 13.91 13.91 13.91 13.91

Tm Absolute Dry Gas Meter Temperature, °R 507 501 497 502

Ts Absolute Stack Temperature, °R 630 634 635 633

Vmstd Volume of Gas Sample Measured by the Dry Gas 188.772 213.020 179.176 193.656

Meter, corrected to Standard Conditions, dscf

Vwcstd Volume of Water Vapor Condensed in the Impingers, 10.74 12.46 10.94 11.38

Corrected to Standard Conditions

Vwsgstd Volume of Water Vapor Condensed in the Silica Gel, 1.75 2.51 1.78 2.01

Corrected to Standard Conditions

Bws Water Vapor in the Gas Stream, proportion 0.062 0.066 0.066 0.065

by volume

Md Molecular Weight of Stack Gas, Dry Basis, lb/lb-mole 28.96 28.96 28.96 28.96

Ms Molecular Weight of Stack Gas, Wet Basis, lb/lb-mole 28.28 28.24 28.24 28.25

Ps Absolute Stack Gas Pressure, in. Hg 29.69 29.68 29.69 29.69

Vs Average Stack Gas Velocity, ft/sec 30.36 39.53 39.12 36.34

Qa Wet Volumetric Stack Gas Flow Rate at Actual 25,340 32,990 32,650 30,330

Conditions, acf/min

Qa Wet Volumetric Stack Gas Flow Rate at Actual 1,520,300 1,979,500 1,959,000 1,819,600

Conditions, acf/hour

Qs Dry Volumetric Stack Gas Flow Rate corrected 1,186,000 1,527,000 1,510,000 1,408,000

to Standard Conditions, dscf/hour

Qs Dry Volumetric Stack Gas Flow Rate corrected 19,770 25,450 25,170 23,460

to Standard Conditions, dscf/min

% I Isokinetics, % 99.0 98.8 101.7 99.8
SUMMARY OF TEST RESULTS

ANODE BAKE OVEN EXHAUST

EPA Method 13B

[Pollutant Calculations]

Century Aluminum Sebree, LLC

Robards, Kentucky

Run Number

Stack 1 Stack 2 Stack 3 Mean

Cs(Fl) Concentration of Particulate Flouride, grains/dscf 6.62E-06 3.62E-06 2.80E-05 1.27E-05

Cs(Fl) Concentration of Gaseous Fluoride, grains/dscf 1.11E-05 3.00E-05 3.45E-05 2.52E-05

Cs(Fl) Concentration of Total Fluoride, grains/dscf 1.77E-05 3.36E-05 6.24E-05 3.79E-05

Cs(Fl) Concentration of Particulate Flouride, mg/dscm 1.51E-02 8.28E-03 6.40E-02 2.92E-02

Cs(Fl) Concentration of Gaseous Fluoride, mg/dscm 2.54E-02 6.86E-02 7.88E-02 5.76E-02

Mp(Fl) Total Fluoride Emissions Rate, lb/hr (Total for 3 Reactors) 4.06E-02 7.69E-02 1.43E-01 8.68E-02

Mp(Fl) Total Particulate Fluoride Emissions Rate, lb/hr 1.12E-03 7.90E-04 6.04E-03 2.65E-03

Mp(Fl) Total Gaseous Fluoride Emissions Rate, lb/hr 1.88E-03 6.54E-03 7.43E-03 5.29E-03

Mp(Fl) Total Fluoride Emissions Rate, lb/hr 3.01E-03 7.33E-03 1.35E-02 7.94E-03

Mp(Fl) Total Fluoride Emissions Rate, lb/hr (Total for 3 Reactors) 2.38E-02

PR(anode) Production Rate, tons/hour green anode processed 15.90 15.90 15.90 15.90

Mp(HF) HF (Front Half) Emissions Factor, lb/ton green anode processed 7.05E-05 4.97E-05 3.80E-04 1.67E-04

Mp(HF) HF (Back Half) Emissions Factor, lb/ton green anode processed 1.18E-04 4.11E-04 4.67E-04 3.32E-04

Mp(HF) HF (Total) Emissions Factor, lb/ton green anode processed 1.89E-04 4.61E-04 8.47E-04 4.99E-04

Mp(HF) HF (Total) Emissions Factor, lb/ton green anode processed (Total) 1.50E-03
SUMMARY OF TEST RESULTS

POLYCYCLIC ORGANIC MATTER

ANODE BAKE OVEN EXHAUST

EPA Method 5

[Raw Data]

Century Aluminum Sebree, LLC

Robards, Kentucky

Run Number

Stack 1 Stack 2 Stack 3 Mean

Date Date of Test 11/21/2014 11/21/2014 11/21/2014 -

Start Start Time, Particulate Matter 7:53 AM 7:53 AM 7:53 AM -

Stop Stop Time, Particulate Matter 11:55 AM 11:55 AM 11:55 AM -

q Total Sampling Time, Particulate Matter 240.0 240.0 240.0 240.0

Pbar Barometric Pressure, in. Hg 29.95 29.95 29.95 29.95

Ds(w) Stack Diameter (Width), inches 50.50 50.50 50.50 50.50

Ds(d) Stack Diameter (Depth), inches 0.00 0.00 0.00 0.00

Dn Nozzle Diameter, inches 0.300 0.250 0.273 0.274

DP Average Velocity Head of Stack Gas, in. H2O 0.235 0.402 0.337 0.325

SQDP Average Squareroot Velocity Head of Stack Gas, 0.485 0.634 0.581 0.570

in. H2O

DH Average Pressure Differential 1.371 1.212 1.453 1.350

Across the Orifice Meter, in. H2O

Tm Absolute Dry Gas Meter Temperature, °F 38.9 39.5 41.2 40.0

Ts Absolute Stack Temperature, °F 169.5 177.0 170.5 172.0

Pg Stack Static Pressure, in. H2O -0.15 -0.25 -0.20 -0.20

Vlc Total Volume of Water Vapor Condensed 200.2 182.0 199.9 194.0

in Impingers, ml

Vwsg Total Volume of Water Vapor Condensed 19.8 11.2 29.3 20.1

in Silica Gel, g

%CO2 Percent CO2 by Volume, Dry Basis 1.50 1.50 1.50 1.50

%O2 Percent O2 by Volume, Dry Basis 18.10 18.10 18.10 18.10

%CO Percent CO by Volume, Dry Basis 0.0 0.0 0.0 0.0

%N2 Percent N2 by Volume, Dry Basis 80.40 80.40 80.40 80.40

Vm Volume of Gas Sample as 156.067 138.312 153.449 149.276

measured by Dry Gas Meter, dcf

Y Dry Gas Meter Calibration Factor 0.9930 1.0080 0.9970 0.9993

Cp Pitot Coefficient 0.83 0.84 0.84 0.84

Mn(PM) Particulate Matter (PM) Catch, μg 2,500 1,100 15,900 6,500

MW(C) Molecular Weight of Carbon, g/mole 12.00 12.00 12.00 12.00

MW(O2) Molecular Weight of Oxygen, g/mole 32.00 32.00 32.00 32.00

Tstd Standard Temperature, °R 528 528 528 528

Pstd Standard Pressure, in. Hg 29.92 29.92 29.92 29.92
SUMMARY OF TEST RESULTS

POLYCYCLIC ORGANIC MATTER

ANODE BAKE OVEN EXHAUST

EPA Method 5

[Flowrate Calculations]

Century Aluminum Sebree, LLC

Robards, Kentucky

Run Number

Stack 1 Stack 2 Stack 3 Mean

An Cross Sectional Area of Nozzle, square feet 0.000491 0.000341 0.000406 0.000413

As Cross Sectional Area of Stack, square feet 13.91 13.91 13.91 13.91

Tm Absolute Dry Gas Meter Temperature, °R 499 500 501 500

Ts Absolute Stack Temperature, °R 630 637 631 633

Vmstd Volume of Gas Sample Measured by the Dry Gas 164.731 147.960 161.906 158.199

Meter, corrected to Standard Conditions, dscf

Vwcstd Volume of Water Vapor Condensed in the Impingers, 9.42 8.57 9.41 9.13

Corrected to Standard Conditions

Vwsgstd Volume of Water Vapor Condensed in the Silica Gel, 0.93 0.53 1.38 0.95

Corrected to Standard Conditions

Bws Water Vapor in the Gas Stream, proportion 0.059 0.058 0.062 0.060

by volume

Md Molecular Weight of Stack Gas, Dry Basis, lb/lb-mole 28.96 28.96 28.96 28.96

Ms Molecular Weight of Stack Gas, Wet Basis, lb/lb-mole 28.32 28.33 28.28 28.31

Ps Absolute Stack Gas Pressure, in. Hg 29.94 29.93 29.94 29.94

Vs Average Stack Gas Velocity, ft/sec 29.66 39.46 36.02 35.05

Qa Wet Volumetric Stack Gas Flow Rate at Actual 24,750 32,930 30,060 29,250

Conditions, acf/min

Qa Wet Volumetric Stack Gas Flow Rate at Actual 1,485,300 1,976,000 1,803,700 1,755,000

Conditions, acf/hr

Qs Dry Volumetric Stack Gas Flow Rate corrected 1,172,000 1,543,000 1,417,000 1,377,000

to Standard Conditions, dscf/hr

Qs Dry Volumetric Stack Gas Flow Rate corrected 19,530 25,720 23,620 22,960

to Standard Conditions, dscf/min

% I Isokinetics, % 99.5 97.8 97.9 98.4
SUMMARY OF TEST RESULTS

ANODE BAKE OVEN EXHAUST

EPA Method 5

[Pollutant Calculations]

Century Aluminum Sebree, LLC

Robards, Kentucky

Run Number

Stack 1 Stack 2 Stack 3 Mean

Cs(PM) Concentration of PM, grains/dscf 2.34E-04 1.15E-04 1.52E-03 6.21E-04

Cs(PM) Concentration of PM, mg/dscm 0.5 0.3 3.5 1.4

Mp(PM) Total PM Emissions Rate, lb/hr 0.04 0.03 0.31 0.12

Mp(PM) Total PM Emissions Rate, lb/hr Total for 3 Reactors) 0.37

PR(anode) Production Rate, tons/hr green anode processed 15.90 15.90 15.90 15.90

Mp(PM) PM Emissions Factor, lb/ton green anode processed 0.002 0.002 0.019 0.008

Mp(PM) PM Emissions Factor, lb/ton green anode processed (Total) 0.0233
SUMMARY OF TEST RESULTS

ANODE BAKE OVEN EXHAUST

EPA Method 13B

[Raw Data]

Century Aluminum Sebree, LLC

Robards, Kentucky

Run Number

Stack 1 Stack 2 Stack 3 Mean

Date Date of Test 12/20/2014 12/20/2014 12/20/2014 -

Start Start Time, Particulate Matter 3:15 PM 3:15 PM 3:15 PM -

Stop Stop Time, Particulate Matter 7:19 PM 7:19 PM 7:19 PM -

θ Total Sampling Time, Particulate Matter 240.0 240.0 240.0 240.0

Pbar Barometric Pressure, in. Hg 29.70 29.70 29.70 29.70

Ds(w) Stack Diameter (Width), inches 50.50 50.50 50.50 50.50

Ds(d) Stack Diameter (Depth), inches 0.00 0.00 0.00 0.00

Dn Nozzle Diameter, inches 0.320 0.300 0.273 0.298

DP Average Velocity Head of Stack Gas, in. H2O 0.244 0.401 0.392 0.346

SQDP Average Squareroot Velocity Head of Stack Gas, 0.494 0.633 0.626 0.580

in. H2O

DH Average Pressure Differential 1.883 2.508 1.646 2.010

Across the Orifice Meter, in. H2O

Tm Absolute Dry Gas Meter Temperature, °F 46.5 41.3 36.8 42.0

Ts Absolute Stack Temperature, °F 170.1 173.7 174.9 173.0

Pg Stack Static Pressure, in. H2O -0.15 -0.25 -0.20 -0.20

Vlc Total Volume of Water Vapor Condensed 228.1 264.7 232.4 241.7

in Impingers, ml

Vwsg Total Volume of Water Vapor Condensed 37.2 53.2 37.8 42.7

in Silica Gel, g

%CO2 Percent CO2 by Volume, Dry Basis 1.50 1.50 1.50 1.50

%O2 Percent O2 by Volume, Dry Basis 18.03 18.03 18.03 18.03

%CO Percent CO by Volume, Dry Basis 0.0 0.0 0.0 0.0

%N2 Percent N2 by Volume, Dry Basis 80.47 80.47 80.47 80.47

Vm Volume of Gas Sample as 182.860 200.882 169.657 184.466

measured by Dry Gas Meter, dcf

Y Dry Gas Meter Calibration Factor 0.9930 1.0080 0.9970 0.9993

Cp Pitot Coefficient 0.83 0.84 0.84 0.84

Mn(PM) PM Catch, μg 3,500 2,200 11,600 5,767

MW(C) Molecular Weight of Carbon, g/mole 12.00 12.00 12.00 12.00

MW(O2) Molecular Weight of Oxygen, g/mole 32.00 32.00 32.00 32.00

Tstd Standard Temperature, °R 528 528 528 528

Pstd Standard Pressure, in. Hg 29.92 29.92 29.92 29.92
SUMMARY OF TEST RESULTS

ANODE BAKE OVEN EXHAUST

EPA Method 13B

[Flowrate Calculations]

Century Aluminum Sebree, LLC

Robards, Kentucky

Run Number

Stack 1 Stack 2 Stack 3 Mean

An Cross Sectional Area of Nozzle, square feet 0.000559 0.000491 0.000406 0.000485

As Cross Sectional Area of Stack, square feet 13.91 13.91 13.91 13.91

Tm Absolute Dry Gas Meter Temperature, °R 507 501 497 502

Ts Absolute Stack Temperature, °R 630 634 635 633

Vmstd Volume of Gas Sample Measured by the Dry Gas 188.772 213.020 179.176 193.656

Meter, corrected to Standard Conditions, dscf

Vwcstd Volume of Water Vapor Condensed in the Impingers, 10.74 12.46 10.94 11.38

Corrected to Standard Conditions

Vwsgstd Volume of Water Vapor Condensed in the Silica Gel, 1.75 2.51 1.78 2.01

Corrected to Standard Conditions

Bws Water Vapor in the Gas Stream, proportion 0.062 0.066 0.066 0.065

by volume

Md Molecular Weight of Stack Gas, Dry Basis, lb/lb-mole 28.96 28.96 28.96 28.96

Ms Molecular Weight of Stack Gas, Wet Basis, lb/lb-mole 28.28 28.24 28.24 28.25

Ps Absolute Stack Gas Pressure, in. Hg 29.69 29.68 29.69 29.69

Vs Average Stack Gas Velocity, ft/sec 30.36 39.53 39.12 36.34

Qa Wet Volumetric Stack Gas Flow Rate at Actual 25,340 32,990 32,650 30,330

Conditions, acf/min

Qa Wet Volumetric Stack Gas Flow Rate at Actual 1,520,300 1,979,500 1,959,000 1,819,600

Conditions, acf/hour

Qs Dry Volumetric Stack Gas Flow Rate corrected 1,186,000 1,527,000 1,510,000 1,408,000

to Standard Conditions, dscf/hour

Qs Dry Volumetric Stack Gas Flow Rate corrected 19,770 25,450 25,170 23,460

to Standard Conditions, dscf/min

% I Isokinetics, % 99.0 98.8 101.7 99.8
SUMMARY OF TEST RESULTS

ANODE BAKE OVEN EXHAUST

EPA Method 13B

[Pollutant Calculations]

Century Aluminum Sebree, LLC

Robards, Kentucky

Run Number

Stack 1 Stack 2 Stack 3 Mean

Cs(PM) Concentration of PM, grains/dscf 2.86E-04 1.59E-04 9.99E-04 4.82E-04

Mp(PM) Total PM Emissions Rate, lb/hr (Total for 3 Reactors) 0.65 0.36 2.29 1.10

Mp(PM) PM Emissions Rate, lb/hr 0.05 0.03 0.22 0.10

Mp(PM) PM Emissions Rate, lb/hr (Total for 3 Reactors) 0.30
 

APPENDIX II 

FIELD DATA SHEETS 
EPA Method 1 Data Sheet

Century Aluminum (Sebree) Date

Robards, KY Project Code

Bake Oven Exhaust Technican

2 Distance from far wall to outside of port

2 Nipple length and/or wall thickness

6.0 Depth of Stack or Duct

Stack or Duct width (if rectangular)

Distance (in.) Diameters Equivalent Diameter (if rectangular)

188 3.0

222 4.0

Point Percent Distance from

of Duct Inside

Wall

1 2.1 1.05

2 6.7 3.35

3 11.5 5.75

4 17.7 8.85

5 25.0 12.50

6 35.5 17.75

7 64.4 32.20

8 75.0 37.50

9 82.3 41.15

10 88.2 44.10

11 93.3 46.65

12 97.9 48.95

GEL Engineering, LLC

A Member of The GEL Group, Inc.

2040 Savage Road, P.O. Box 30712, Charleston, SC 29407

(843) 769-7378 FAX (843) 769-7397

55.08

23.88

38.33

43.63

47.28

50.23

52.78

of Port

7.18

9.48

11.88

Port Inside Diameter 50

0.0

Number of Ports Available 56.125

14.98

18.63

Nearest Upstream Disturbance (B)

0.0

Nearest Downstream Disturbance (A)

Distance from

Outside

Number of Ports Used 6.125

Plant 11/20/2014

City/State nsas001214

Sampling Location GMS

Ports Diameters (in.)

2

5 1.25

7 1.75

8

6 1.50

2.00

0.50 24 or 25

20

16

12

12

16

UP DOWN

DIAMETERS

Velocity Particulate

Draw Horizontal Line Through Diameters ROUND STACK OR DUCT

4 6 8 10 12 14 16 18 20 22 24

1 6.7 4.4 3.2 2.6 2.1 1.8 1.5 1.4 1.3 1.1 1.1

2 25.0 14.6 10.5 8.2 6.7 6.7 4.3 4.4 3.9 3.5 3.2

3 75.0 29.4 19.4 14.6 11.5 9.9 8.5 7.5 6.7 6.0 5.5

4 93.3 70.4 32.3 22.6 17.7 14.6 12.5 10.9 9.7 8.7 7.8

5 85.4 67.7 34.2 25.0 20.1 16.9 14.6 12.9 11.6 10.5

6 95.8 80.6 65.8 35.5 26.9 22.0 18.8 16.5 14.5 13.2

7 89.5 77.4 64.4 36.6 28.3 23.6 20.4 18.0 16.1

8 96.4 85.4 75.0 63.4 37.5 29.5 25.0 21.8 19.4

9 91.8 82.3 73.1 62.5 38.2 30.6 26.2 23.0

10 97.4 88.2 78.9 71.7 61.8 38.8 31.5 27.2

11 93.3 85.4 78.0 70.4 61.2 39.3 32.3

12 97.9 90.1 83.1 76.4 69.4 60.7 39.8

13 94.3 87.5 81.2 75.0 68.5 60.2

14 98.3 91.5 85.4 79.6 73.8 67.7

15 95.1 89.1 83.5 78.2 72.8

16 98.4 92.5 87.1 82.0 77.0

17 95.6 90.3 85.4 80.6

18 98.6 93.3 88.4 83.9

19 96.1 91.3 86.8

20 96.7 94.0 89.5

21 96.5 92.1

22 98.9 94.5

23 96.8

24 98.9

SQUARE STACK OR DUCT

2 3 4 5 6 7 8 9 10 11 12

1 25.0 16.7 12.5 10.0 8.3 7.1 6.3 5.6 5.0 4.5 4.2

2 75.0 50.0 37.5 30.0 25.0 21.4 18.8 16.7 15.0 13.6 12.5

3 83.3 62.5 50.0 41.7 35.7 31.3 27.8 25.0 22.7 20.8

4 87.5 70.0 58.3 50.0 43.8 38.9 35.0 31.8 29.2

5 90.0 75.0 64.3 56.3 50.0 45.0 40.9 37.5

6 91.7 78.6 68.5 61.1 55.0 50.0 45.8

7 92.9 81.3 72.2 65.0 59.1 54.2

8 93.8 83.3 75.0 66.2 62.5

9 94.4 85.0 77.3 70.8

10 95.0 86.4 79.2

11 95.5 87.5

12 96.3

=

+

=

(Depth Width)

 2 (Depth) (Width) D e

Decimal to Fraction Conversion Table

Decimal Fraction Decimal Use These

Inches Inches Fraction

Range Inches

0.0000-0.0625 0

0.125 1/8 0.0625-0.1874 1/8

0.250 1/4 0.1875-0.3125 1/4

0.375 3/8 0.3125-0.4375 3/8

0.500 1/2 0.4375-0.5625 1/2

0.625 5/8 0.5625-0.6875 5/8

0.750 3/4 0.6875-0.8125 3/4

0.875 7/8 0.8125-0.9375 7/8

0.9375-1.0000 1
GEL Engineering, LLC

A Member of THE GEL GROUP, Inc.

2040 Savage Road, P.O. Box 30712, Charleston, S.C. 29407

Phone (803) 769-7378 FAX (803) 769-7397

Cyclonic Flow Determinations

Client Century Aluminum (Sebree) Date

Plant Site Robards, KY Run Number 1

Sampling location Bake Oven Exhaust Project Number

Condition normal Observer

Test Personnel GMS/SAH Agency

Data

Barometric Pressure Type of Pitot S

Manometer Number Pitot Number P-601

Duct Dimensions (inches) Pitot Coeffient 0.84

Preliminary Traverse

Start Time

Stop Time

Point Sample

Number Point

1 A1

2 A2

3 A3

4 A4

5 A5

6 A6

7 A7

8 A8

9 A9

10 A10

11 A11

12 A12

13 B1

14 B2

15 B3

16 B4

17 B5

18 B6

19 B7

20 B8

21 B9

22 B10

23 B11

24 B12

25

Mean

0.00 0

5

0

negitive

0.00

0.00

0.00

0.00

0.00

11/20/2014

2.1

0

0

5

0

0

0

5

5

Note: The mean of the rotation angle must be less than 20 degrees

0.10 5

0.10 5

0.10 5

0.00

0.00 0

0.10 5

0.00 0

negitive 5

negitive

50

0.00 0

0.20 5

0.00 0

0.00 0

0.00 0

DP @ 90o Rotation Angle (a)

(0o

 reference) for null DP

0.10

0.20

0.00 0
Location: Method: 

Source: Start Time: RUN No. 

Date: End Time: JOB No. 

% Moisture: 8 % est. METER BOX: Est. Tm: 50 °F 68 °F 527.67 Local Pbar (in. Hg) =

Barometric: 29.95 in Hg Y: 0.993 Est. Ts: 180 °F Elevation of meter above sea 

Static Press: -0.15 in H2O ∆H@: 1.782 in H2O Est. dP: 0.27 in H2O in Hg Actual Pbar (in. Hg) = 

Stack Press: 29.94 in Hg PROBE Est. Dn: 0.313 inches

%CO2: 2.00 % Cp: 0.83

%O2: 18.00 % NOZZLE: DGM initial 0.000 ______ 0.000 cf Pre Post Total (g)

%N2/CO: 80.00 % Dn: 0.300 in DGM final 0.004 ______ 0.003 cf DI: 309.2 509.4 200.2

Md: 29.04 lb/lb-mole Stack Area: ft2 Leak Rate 0.004 ______ 0.003 cfm SG: 264.1 283.9 19.8

Ms: 28.16 lb/lb-mole # of Points: 24 points Vacuum 12 ______ 6 in. Hg Other: 0

Pitot Pump 5.830

∆P Vac. Imp. Vs

Begin End (in. H2O) Inlet Outlet Stack Ideal Actual (in Hg) Probe Filter Exit (fps)

1 0.00 10.00 0.25 27.0 23.0 167 1.416 1.40 1 260 255 32 105.7 30.60 0.500

2 10.00 20.00 0.26 32.0 25.0 171 1.474 1.50 1 259 256 32 107.9 31.30 0.510 Ds(w) Inches

3 20.00 30.00 0.27 34.0 25.0 174 1.526 1.50 1 259 256 32 101.4 31.97 0.520 Ds(d) 50.00 Inches

4 30.00 40.00 0.26 35.0 27.0 169 1.486 1.50 1 259 256 34 102.6 31.25 0.510 Round ft2

5 40.00 50.00 0.27 36.0 28.0 170 1.544 1.50 1 258 259 34 100.6 31.87 0.520 Rectangle ft26 50.00 60.00 0.28 37.0 29.0 173 1.596 1.60 2 259 259 36 95.9 32.54 0.529

7 60.00 70.00 0.26 38.0 30.0 168 1.497 1.50 2 257 259 36 103.4 31.23 0.510

8 70.00 80.00 0.25 39.0 32.0 167 1.469 1.50 2 256 259 36 104.2 30.84 0.504

9 80.00 90.00 0.26 40.0 32.0 169 1.501 1.50 2 255 256 37 101.6 31.25 0.510

10 90.00 100.00 0.27 40.0 32.0 173 1.571 1.60 2 255 256 38 105.1 32.19 0.523 A B Post 

11 100.00 110.00 0.25 41.0 33.0 169 1.446 1.50 2 254 259 42 104.9 30.65 0.500 >= 3.0 >= 3.0 Pressu

12 110.00 120.00 0.24 41.0 34.0 168 1.392 1.40 2 254 260 44 100.7 30.00 0.490 Y Y Stable 

13 120.00 130.00 0.22 40.0 34.0 171 1.269 1.30 2 253 260 45 102.2 28.79 0.469

14 130.00 140.00 0.23 41.0 35.0 169 1.334 1.30 2 256 260 46 98.0 29.39 0.480

15 140.00 150.00 0.22 42.0 35.0 167 1.281 1.30 2 254 260 46 93.5 28.70 0.469

16 150.00 160.00 0.21 42.0 35.0 169 1.219 1.20 2 254 259 47 104.1 28.09 0.458

17 160.00 170.00 0.20 48.0 42.0 167 1.180 1.20 2 262 260 45 101.8 27.37 0.44718 170.00 180.00 0.19 50.0 43.0 167 1.125 1.10 2 261 259 43 102.4 26.67 0.43619 180.00 190.00 0.22 51.0 43.0 174 1.289 1.30 2 260 260 45 97.3 28.86 0.469 DGM initial ______ ______ 

20 190.00 200.00 0.23 51.0 45.0 170 1.358 1.40 2 259 260 45 97.8 29.42 0.480 DGM final ______ ______ 

21 200.00 210.00 0.20 53.0 48.0 168 1.191 1.20 2 260 259 46 109.1 27.39 0.447 Leak Rate ______ ______ 

22 210.00 220.00 0.21 53.0 48.0 169 1.248 1.30 2 258 260 45 92.0 28.09 0.458 Vacuum ______ ______ 

23 220.00 230.00 0.18 53.0 48.0 167 1.074 1.00 2 260 259 43 102.6 25.96 0.424

24 220.00 230.00 0.22 51.0 47.0 173 1.296 1.30 2 258 257 40 105.8 28.84 0.469

Final DGM: 0.485

Max

4.420 m3 5.966 mm 3.8 °C 76.4 °C Vac. 34.819 mm 9.021 m/s

230.00 min 156.067 ft3 0.235 in 38.9 °F 169.5 °F 2 1.371 in 104.1 29.597 ft/s 28.39 ##### #####

%H2O

4.6664 dscm 0.2933 scm (meas.) dscmm scmm - - kg/hr

164.792 dscf 10.355 scf 5.9 dscfm scfm - - lb/hr

Gregg Szymkowicz Craig McKenzie

Test Personnel (signature/date) Project Leader (signature/date)

 EXTRA LEAK CHECK

sqrt 

(dP)

Standard Temperature

29.92

Standard Pressure

Post Test LC Side

Pressure Tap (in. H2O)

Stable for 15 sec (Y/N)

Barometric Pressure C

Dry Gas 

Meter 

Reading (ft3)

 Standard DRY

(minutes)

721.1714.3

Pitot Tube Leak Check (Pretest)

STACK DATA EQUIPMENT

glass

707.2

700.401

Pit

Sample 

Point DGM ∆H (in H20) Gas Temperatures (°F)

FILTERS

Filter # Tare Weight

14Q-57

755.1727.9734.7741.3748.2

∆Η (H2O) Vs

(°F) % ISO

LEAK CHECKS

gr/dscf

Particulate Mass (mg)

FINAL CATCH

Liquid Vol. (ml)

220

Gas Temps

mg/dscm

Concentration Emission Rate

%ISO

RESULTS Vmstd Vwstd Run Time

Vm

856.468

K FACTOR =

1

761.9800.8795.0769.1

3p-602

ESTIMATES

∆P (H2O) Tm Ts

Stack Diameter

Bake Oven Exhaust 

813.2

Total Gain

Moisture

220

-

Qsd Qsw

#VALUE!#VALUE!

-

843.9776.0782.5788.8831.6849.8825.3819.2807.1838.2

Century Aluminum (Sebree) 315

7:53 AM

11/21/14 11:55 AM

Sample Time
Location: Method: 

Source: Start Time: RUN No. 

Date: End Time: JOB No. 

% Moisture: 8 % est. METER BOX: Est. Tm: 50 °F 68 °F 527.67 Local Pbar (in. Hg) =

Barometric: 29.95 in Hg Y: 1.008 Est. Ts: 172 °F Elevation of meter above sea 

Static Press: -0.25 in H2O ∆H@: 1.881 in H2O Est. dP: 0.27 in H2O in Hg Actual Pbar (in. Hg) = 

Stack Press: 29.93 in Hg PROBE Est. Dn: 0.31 inches

%CO2: 2.00 % Cp: 0.84

%O2: 18.00 % NOZZLE: DGM initial 0.000 ______ 0.000 cf Pre Post Total (g)

%N2/CO: 80.00 % Dn: 0.250 in DGM final 0.005 ______ 0.000 cf DI: 326.4 508.4 182

Md: 29.04 lb/lb-mole Stack Area: ft2 Leak Rate 0.005 ______ 0 cfm SG: 302.5 313.7 11.2

Ms: 28.16 lb/lb-mole # of Points: 24 points Vacuum 10 ______ 5 in. Hg Other: 0

Pitot Pump 3.076

∆P Vac. Imp. Vs

Begin End (in. H2O) Inlet Outlet Stack Ideal Actual (in Hg) Probe Filter Exit (fps)

1 0.00 10.00 0.48 27.0 25.0 175 1.402 1.40 2 226 255 32 96.8 43.19 0.693

2 10.00 20.00 0.47 30.0 25.0 177 1.373 1.40 2 227 254 32 98.5 42.80 0.686 Ds(w) Inches

3 20.00 30.00 0.45 34.0 26.0 177 1.321 1.30 3 230 256 32 103.5 41.88 0.671 Ds(d) 50.00 Inches

4 30.00 40.00 0.45 36.0 28.0 175 1.331 1.30 3 230 255 38 104.5 41.81 0.671 Round ft2

5 40.00 50.00 0.39 36.0 29.0 177 1.151 1.20 3 232 252 38 98.1 38.99 0.624 Rectangle ft26 50.00 60.00 0.38 38.0 31.0 175 1.130 1.10 3 230 248 40 97.0 38.43 0.616

7 60.00 70.00 0.36 38.0 32.0 175 1.072 1.10 3 230 250 41 101.4 37.40 0.600

8 70.00 80.00 0.35 38.0 33.0 178 1.038 1.00 3 230 250 42 102.9 36.96 0.592

9 80.00 90.00 0.33 38.0 33.0 177 0.981 0.98 3 234 254 46 100.1 35.86 0.574

10 90.00 100.00 0.31 39.0 34.0 173 0.929 0.90 3 232 259 45 104.7 34.65 0.557 A B Post 

11 100.00 110.00 0.35 39.0 34.0 177 1.042 1.00 3 230 258 46 95.2 36.94 0.592 >= 3.0 >= 3.0 Pressu

12 110.00 120.00 0.37 39.0 34.0 176 1.103 1.10 3 230 259 47 92.5 37.95 0.608 Y Y Stable 

13 120.00 130.00 0.33 40.0 35.0 180 0.980 0.98 3 239 255 46 94.2 35.95 0.574

14 130.00 140.00 0.45 42.0 36.0 176 1.347 1.40 3 244 254 46 99.9 41.85 0.671

15 140.00 150.00 0.42 44.0 38.0 180 1.255 1.30 3 245 259 47 106.7 40.56 0.648

16 150.00 160.00 0.38 45.0 39.0 177 1.144 1.10 3 244 259 47 102.8 38.49 0.616

17 160.00 170.00 0.45 49.0 43.0 180 1.358 1.30 3 250 251 46 95.6 41.98 0.67118 170.00 180.00 0.43 50.0 43.0 176 1.307 1.32 3 251 252 45 104.0 40.91 0.65619 180.00 190.00 0.38 51.0 45.0 179 1.153 1.20 3 247 255 45 100.0 38.55 0.616 DGM initial ______ ______ 

20 190.00 200.00 0.40 52.0 45.0 176 1.221 1.20 3 245 254 46 98.8 39.45 0.632 DGM final ______ ______ 

21 200.00 210.00 0.40 53.0 48.0 177 1.224 1.30 3 246 255 45 103.6 39.49 0.632 Leak Rate ______ ______ 

22 210.00 220.00 0.38 52.0 48.0 177 1.162 1.20 3 248 252 46 94.2 38.49 0.616 Vacuum ______ ______ 

23 220.00 230.00 0.49 52.0 48.0 180 1.490 1.50 3 250 256 45 101.7 43.81 0.700

24 220.00 230.00 0.48 53.0 48.0 179 1.463 1.50 3 253 256 43 98.9 43.32 0.693

Final DGM: 0.634

Max

3.917 m3 10.203 mm 4.2 °C 80.6 °C Vac. 30.776 mm 12.009 m/s

230.00 min 138.312 ft3 0.402 in 39.5 °F 177.0 °F 3 1.212 in 102.2 39.400 ft/s 28.4 ##### #####

%H2O

4.1883 dscm 0.2575 scm (meas.) dscmm scmm - - kg/hr

147.907 dscf 9.094 scf 5.8 dscfm scfm - - lb/hr

Gregg Szymkowicz Craig McKenzie

Test Personnel (signature/date) Project Leader (signature/date)

164.6101.2106.3111.2153.1147.3141.6129.4159.2

#VALUE!

Century Aluminum (Sebree) 315

7:53 AM

11/21/14 11:55 AM

∆P (H2O) Tm

2

Stack Diameter

Bake Oven Exhaust

135.3

Total Gain

Moisture

K FACTOR = 193.2

RESULTS Vmstd Vwstd Run Time

Vm

--

Qsd

gr/dscf

Particulate Mass (mg)

85.663.769.274.6

171.2

177.563

Ts

%ISO

mg/dscm

Concentration Emission Rate

90.8

123.6117.3

96.1

Qsw

#VALUE!

∆Η (H2O) Vs

(°F) % ISO

LEAK CHECKS FINAL CATCH

Liquid Vol. (ml)

193.2

Sample Time Gas Temps

ESTIMATES FILTERS

Filter # Tare Weight

STACK DATA EQUIPMENT

14Q-58

57.4

glass

45.2

39.251

7p-502

Stable for 15 sec (Y/N)

80.1

Pit

Sample 

Point DGM ∆H (in H20) Dry Gas Gas Temperatures (°F) Meter 

Reading (ft3)

 Standard DRY

(minutes)

Barometric Pressure C

51.2

Pitot Tube Leak Check (Pretest)

 EXTRA LEAK CHECK

sqrt 

(dP)

Standard Temperature

29.92

Standard Pressure

Post Test LC Side

Pressure Tap (in. H2O)
Location: Method: 

Source: Start Time: RUN No. 

Date: End Time: JOB No. 

% Moisture: 8 % est. METER BOX: Est. Tm: 50 °F 68 °F 527.67 Local Pbar (in. Hg) =

Barometric: 29.95 in Hg Y: 0.997 Est. Ts: 180 °F Elevation of meter above sea 

Static Press: -0.20 in H2O ∆H@: 1.873 in H2O Est. dP: 0.32 in H2O in Hg Actual Pbar (in. Hg) = 

Stack Press: 29.94 in Hg PROBE Est. Dn: 0.298 inches

%CO2: 2.00 % Cp: 0.84

%O2: 18.00 % NOZZLE: DGM initial 0.000 ______ 0.000 cf Pre Post Total (g)

%N2/CO: 80.00 % Dn: 0.273 in DGM final 0.006 ______ 0.012 cf DI: 305.5 505.4 199.9

Md: 29.04 lb/lb-mole Stack Area: ft2 Leak Rate 0.006 ______ 0.012 cfm SG: 270.8 300.1 29.3

Ms: 28.16 lb/lb-mole # of Points: 24 points Vacuum 12 ______ 10 in. Hg Other: 0

Pitot Pump 4.302

∆P Vac. Imp. Vs

Begin End (in. H2O) Inlet Outlet Stack Ideal Actual (in Hg) Probe Filter Exit (fps)

1 0.00 10.00 0.37 29.0 27.0 170 1.549 1.50 5 225 261 32 101.9 37.76 0.608

2 10.00 20.00 0.38 35.0 29.0 180 1.578 1.60 6 226 261 32 99.3 38.57 0.616 Ds(w) Inches

3 20.00 30.00 0.39 37.0 30.0 168 1.656 1.60 6 226 262 35 104.2 38.71 0.624 Ds(d) 50.00 Inches

4 30.00 40.00 0.40 38.0 32.0 173 1.689 1.70 6 225 260 42 98.6 39.36 0.632 Round ft2

5 40.00 50.00 0.41 39.0 32.0 176 1.725 1.70 6 226 259 43 99.0 39.94 0.640 Rectangle ft26 50.00 60.00 0.40 40.0 34.0 173 1.696 1.70 6 225 260 46 106.9 39.36 0.632

7 60.00 70.00 0.32 41.0 36.0 162 1.386 1.40 6 245 260 46 102.1 34.90 0.566

8 70.00 80.00 0.26 41.0 36.0 161 1.129 1.10 6 254 261 47 98.9 31.43 0.510

9 80.00 90.00 0.33 41.0 36.0 163 1.427 1.40 6 255 260 45 99.0 35.47 0.574

10 90.00 100.00 0.34 41.0 36.0 164 1.468 1.50 6 259 260 44 99.2 36.03 0.583 A B Post 

11 100.00 110.00 0.32 41.0 37.0 161 1.390 1.40 6 260 258 46 92.3 34.87 0.566 >= 3.0 >= 3.0 Pressu

12 110.00 120.00 0.31 42.0 37.0 157 1.356 1.40 6 259 259 49 99.9 34.21 0.557 Y Y Stable 

13 120.00 130.00 0.39 40.0 36.0 176 1.650 1.60 6 255 257 43 96.6 38.96 0.624

14 130.00 140.00 0.37 42.0 37.0 177 1.567 1.60 6 254 256 43 100.4 37.97 0.608

15 140.00 150.00 0.38 45.0 39.0 173 1.628 1.60 7 260 260 44 95.4 38.36 0.616

16 150.00 160.00 0.39 46.0 39.0 175 1.667 1.70 7 260 260 44 102.9 38.93 0.624

17 160.00 170.00 0.33 49.0 43.0 173 1.426 1.40 7 259 260 38 95.2 35.75 0.57418 170.00 180.00 0.31 49.0 44.0 174 1.339 1.30 6 261 260 37 99.8 34.68 0.55719 180.00 190.00 0.32 52.0 46.0 175 1.386 1.40 6 262 260 38 102.6 35.26 0.566 DGM initial ______ ______ 

20 190.00 200.00 0.36 53.0 47.0 175 1.562 1.60 6 263 260 39 98.1 37.40 0.600 DGM final ______ ______ 

21 200.00 210.00 0.30 53.0 48.0 177 1.300 1.30 6 260 259 40 100.9 34.19 0.548 Leak Rate ______ ______ 

22 210.00 220.00 0.31 53.0 49.0 176 1.346 1.40 6 257 260 40 94.3 34.73 0.557 Vacuum ______ ______ 

23 220.00 230.00 0.22 52.0 49.0 167 0.969 0.98 6 255 259 40 98.0 29.05 0.469

24 220.00 230.00 0.23 52.0 49.0 165 1.016 1.00 6 254 257 41 104.2 29.66 0.480

Final DGM: 0.581

Max

4.346 m3 8.562 mm 5.1 °C 76.9 °C Vac. 36.915 mm 10.952 m/s

230.00 min 153.449 ft3 0.337 in 41.2 °F 170.5 °F 7 1.453 in 102.2 35.931 ft/s 28.36 ##### #####

%H2O

4.5839 dscm 0.3055 scm (meas.) dscmm scmm - - kg/hr

161.881 dscf 10.788 scf 6.2 dscfm scfm - - lb/hr

Gregg Szymkowicz Craig McKenzie

Test Personnel (signature/date) Project Leader (signature/date)

231.6161.0167.2173.8219.5212.9206.4194.1225.7

#VALUE!

Century Aluminum (Sebree) 315

7:53 AM

11/21/14 11:55 AM

∆P (H2O) Tm

3

Stack Diameter

Bake Oven Exhaust

200.2

Total Gain

Moisture

K FACTOR = 229.2

RESULTS Vmstd Vwstd Run Time

Vm

--

Qsd

gr/dscf

Particulate Mass (mg)

142.5116.2123.1130.5236.8

242.466

Ts

%ISO

mg/dscm

Concentration Emission Rate

148.8187.0180.5155.2

Qsw

#VALUE!

∆Η (H2O) Vs

(°F) % ISO

LEAK CHECKS FINAL CATCH

Liquid Vol. (ml)

229.2

Sample Time Gas Temps

ESTIMATES FILTERS

Filter # Tare Weight

STACK DATA EQUIPMENT

14Q-59

109.4

glass

95.7

89.017

9p-502

Stable for 15 sec (Y/N)

136.9

Pit

Sample 

Point DGM ∆H (in H20) Dry Gas Gas Temperatures (°F) Meter 

Reading (ft3)

 Standard DRY

(minutes)

Barometric Pressure C

102.3

Pitot Tube Leak Check (Pretest)

 EXTRA LEAK CHECK

sqrt 

(dP)

Standard Temperature

29.92

Standard Pressure

Post Test LC Side

Pressure Tap (in. H2O)
Location: Method: 

Source: Start Time: RUN No. 

Date: End Time: JOB No. 

% Moisture: 8 % est. METER BOX: Est. Tm: 50 °F 68 °F 527.67 Local Pbar (in. Hg) =

Barometric: 29.70 in Hg Y: 0.993 Est. Ts: 180 °F Elevation of meter above sea 

Static Press: -0.15 in H2O ∆H@: 1.782 in H2O Est. dP: 0.27 in H2O in Hg Actual Pbar (in. Hg) = 

Stack Press: 29.69 in Hg PROBE Est. Dn: 0.312 inches

%CO2: 2.00 % Cp: 0.83

%O2: 18.00 % NOZZLE: DGM initial 0.000 ______ 0.000 cf Pre Post Total (g)

%N2/CO: 80.00 % Dn: 0.320 in DGM final 0.002 ______ 0.003 cf DI: 307.4 535.5 228.1

Md: 29.04 lb/lb-mole Stack Area: ft2 Leak Rate 0.002 ______ 0.003 cfm SG: 275.5 312.7 37.2

Ms: 28.16 lb/lb-mole # of Points: 24 points Vacuum 11 ______ 10 in. Hg Other: 0

Pitot Pump 7.546

∆P Vac. Imp. Vs

Begin End (in. H2O) Inlet Outlet Stack Ideal Actual (in Hg) Probe Filter Exit (fps)

1 0.00 10.00 0.25 38.0 36.0 177 1.847 1.80 1 259 250 37 102.1 30.97 0.500

2 10.00 20.00 0.22 44.0 38.0 175 1.644 1.60 1 255 248 39 100.4 29.01 0.469 Ds(w) Inches

3 20.00 30.00 0.22 45.0 39.0 171 1.658 1.70 1 254 249 39 94.3 28.92 0.469 Ds(d) 50.00 Inches

4 30.00 40.00 0.23 46.0 39.0 172 1.732 1.70 1 254 250 39 101.8 29.59 0.480 Round ft2

5 40.00 50.00 0.25 46.0 40.0 171 1.887 1.90 1 253 250 40 97.6 30.82 0.500 Rectangle ft26 50.00 60.00 0.26 45.0 40.0 169 1.966 2.00 2 254 253 41 107.3 31.38 0.510

7 60.00 70.00 0.25 45.0 39.0 168 1.892 1.90 2 254 254 45 98.8 30.75 0.500

8 70.00 80.00 0.24 44.0 39.0 169 1.812 1.80 2 255 256 50 98.3 30.15 0.490

9 80.00 90.00 0.25 44.0 38.0 172 1.876 1.90 2 255 254 53 98.0 30.85 0.500

10 90.00 100.00 0.26 43.0 37.0 164 1.972 2.00 2 256 254 53 102.2 31.26 0.510 A B Post 

11 100.00 110.00 0.24 42.0 37.0 163 1.821 2.00 2 254 255 54 99.6 30.01 0.490 >= 3.0 >= 3.0 Pressu

12 110.00 120.00 0.22 42.0 36.0 171 1.648 1.70 2 255 260 55 103.4 28.92 0.469 Y Y Stable 

13 120.00 130.00 0.25 42.0 36.0 172 1.869 1.90 2 259 260 53 105.1 30.85 0.500

14 130.00 140.00 0.24 42.0 36.0 173 1.792 1.80 2 257 257 51 107.3 30.25 0.490

15 140.00 150.00 0.21 42.0 36.0 172 1.571 1.60 3 256 259 48 100.0 28.27 0.458

16 150.00 160.00 0.20 42.0 36.0 171 1.499 1.50 3 255 258 46 103.9 27.57 0.447

17 160.00 170.00 0.22 42.0 36.0 163 1.669 1.70 3 255 258 46 98.5 28.73 0.46918 170.00 180.00 0.23 41.0 36.0 162 1.746 1.80 3 256 256 44 100.5 29.35 0.48019 180.00 190.00 0.23 41.0 36.0 165 1.738 1.70 3 256 255 44 104.8 29.42 0.480 DGM initial ______ ______ 

20 190.00 200.00 0.25 41.0 35.0 172 1.865 1.90 3 255 256 44 101.3 30.85 0.500 DGM final ______ ______ 

21 200.00 210.00 0.27 42.0 354.0 171 2.660 2.70 3 255 255 43 94.2 32.03 0.520 Leak Rate ______ ______ 

22 210.00 220.00 0.29 43.0 35.0 172 2.166 2.20 3 254 254 43 96.4 33.22 0.539 Vacuum ______ ______ 

23 220.00 230.00 0.30 43.0 35.0 173 2.237 2.30 3 254 253 42 108.2 33.82 0.548

24 220.00 230.00 0.28 43.0 35.0 175 2.082 2.10 3 254 253 42 100.1 32.72 0.529

Final DGM: 0.494

Max

5.179 m3 6.187 mm 8.1 °C 76.7 °C Vac. 47.837 mm 9.235 m/s

230.00 min 182.860 ft3 0.244 in 46.5 °F 170.1 °F 3 1.883 in 103.7 30.298 ft/s 28.36 ##### #####

%H2O

5.3476 dscm 0.3536 scm (meas.) dscmm scmm - - kg/hr

188.848 dscf 12.488 scf 6.2 dscfm scfm - - lb/hr

Gregg Szymkowicz Craig McKenzie

Test Personnel (signature/date) Project Leader (signature/date)

 EXTRA LEAK CHECK

sqrt 

(dP)

Standard Temperature

29.92

Standard Pressure

Post Test LC Side

Pressure Tap (in. H2O)

Stable for 15 sec (Y/N)

Barometric Pressure C

Dry Gas 

Meter 

Reading (ft3)

 Standard DRY

(minutes)

536.7530.0

Pitot Tube Leak Check (Pretest)

STACK DATA EQUIPMENT

glass

522.9

515.285

Pit

Sample 

Point DGM ∆H (in H20) Gas Temperatures (°F)

FILTERS

Filter # Tare Weight

pf-121

574.6544.1551.5559.8567.3

∆Η (H2O) Vs

(°F) % ISO

LEAK CHECKS

gr/dscf

Particulate Mass (mg)

FINAL CATCH

Liquid Vol. (ml)

265.3

Gas Temps

mg/dscm

Concentration Emission Rate

%ISO

RESULTS Vmstd Vwstd Run Time

Vm

698.145

K FACTOR =

1

582.0627.3620.4589.9

3p-602

ESTIMATES

∆P (H2O) Tm Ts

Stack Diameter

Bake Oven Exhaust 

641.3

Total Gain

Moisture

265.3

-

Qsd Qsw

#VALUE!#VALUE!

-

681.3597.3604.6612.5663.8690.2656.2648.6634.3673.5

Century Aluminum (Sebree) 13B

3:15 PM

11/20/14 7:19 PM

Sample Time
Location: Method: 

Source: Start Time: RUN No. 

Date: End Time: JOB No. 

% Moisture: 8 % est. METER BOX: Est. Tm: 50 °F 68 °F 527.67 Local Pbar (in. Hg) =

Barometric: 29.72 in Hg Y: 1.008 Est. Ts: 172 °F Elevation of meter above sea 

Static Press: -0.25 in H2O ∆H@: 1.881 in H2O Est. dP: 0.27 in H2O in Hg Actual Pbar (in. Hg) = 

Stack Press: 29.70 in Hg PROBE Est. Dn: 0.31 inches

%CO2: 2.00 % Cp: 0.84

%O2: 18.00 % NOZZLE: DGM initial 0.000 ______ 0.000 cf Pre Post Total (g)

%N2/CO: 80.00 % Dn: 0.300 in DGM final 0.006 ______ 0.003 cf DI: 322.2 586.9 264.7

Md: 29.04 lb/lb-mole Stack Area: ft2 Leak Rate 0.006 ______ 0.003 cfm SG: 264.2 317.4 53.2

Ms: 28.16 lb/lb-mole # of Points: 24 points Vacuum 12 ______ 11 in. Hg Other: 0

Pitot Pump 6.378

∆P Vac. Imp. Vs

Begin End (in. H2O) Inlet Outlet Stack Ideal Actual (in Hg) Probe Filter Exit (fps)

1 0.00 10.00 0.30 38.0 37.0 170 1.872 1.90 3 249 255 36 97.2 34.14 0.548

2 10.00 20.00 0.31 43.0 37.0 172 1.938 1.90 3 252 254 42 99.3 34.76 0.557 Ds(w) Inches

3 20.00 30.00 0.30 46.0 39.0 172 1.885 1.90 3 253 255 47 99.0 34.19 0.548 Ds(d) 50.00 Inches

4 30.00 40.00 0.33 48.0 40.0 174 2.073 2.00 3 254 255 47 100.9 35.92 0.574 Round ft2

5 40.00 50.00 0.36 48.0 41.0 170 2.276 2.30 3 253 255 49 102.5 37.40 0.600 Rectangle ft26 50.00 60.00 0.37 48.0 41.0 173 2.328 2.30 3 254 254 49 100.1 38.00 0.608

7 60.00 70.00 0.35 48.0 41.0 173 2.203 2.20 3 253 254 50 102.9 36.96 0.592

8 70.00 80.00 0.41 45.0 41.0 174 2.566 2.60 4 255 254 51 100.2 40.04 0.640

9 80.00 90.00 0.42 43.0 40.0 174 2.621 2.60 4 254 255 52 98.2 40.52 0.648

10 90.00 100.00 0.41 41.0 40.0 173 2.558 2.60 4 255 254 52 98.3 40.00 0.640 A B Post 

11 100.00 110.00 0.40 43.0 39.0 175 2.491 2.50 4 254 256 53 100.7 39.58 0.632 >= 3.0 >= 3.0 Pressu

12 110.00 120.00 0.42 44.0 38.0 183 2.582 2.60 5 253 257 53 101.3 40.81 0.648 Y Y Stable 

13 120.00 130.00 0.44 42.0 38.0 182 2.702 2.80 6 254 257 55 106.1 41.74 0.663

14 130.00 140.00 0.45 43.0 38.0 172 2.810 2.80 6 255 260 48 96.0 41.88 0.671

15 140.00 150.00 0.43 44.0 38.0 170 2.697 2.70 6 255 262 48 99.1 40.87 0.656

16 150.00 160.00 0.41 44.0 38.0 170 2.573 2.50 6 255 261 47 97.9 39.91 0.640

17 160.00 170.00 0.40 44.0 38.0 171 2.506 2.50 6 255 260 45 106.4 39.45 0.63218 170.00 180.00 0.42 44.0 38.0 171 2.631 2.60 6 254 260 45 101.5 40.43 0.64819 180.00 190.00 0.44 43.0 37.0 173 2.741 2.70 6 255 259 45 92.7 41.44 0.663 DGM initial ______ ______ 

20 190.00 200.00 0.46 43.0 37.0 177 2.847 2.90 6 254 259 45 100.0 42.51 0.678 DGM final ______ ______ 

21 200.00 210.00 0.45 43.0 37.0 176 2.790 2.80 7 260 260 44 105.5 42.01 0.671 Leak Rate ______ ______ 

22 210.00 220.00 0.47 44.0 37.0 175 2.921 2.90 7 257 256 43 97.6 42.90 0.686 Vacuum ______ ______ 

23 220.00 230.00 0.46 44.0 37.0 174 2.864 2.80 7 255 259 43 105.2 42.41 0.678

24 220.00 230.00 0.45 43.0 37.0 175 2.794 2.80 7 255 259 43 94.9 41.98 0.671

Final DGM: 0.633

Max

5.689 m3 10.180 mm 5.1 °C 78.7 °C Vac. 63.712 mm 12.029 m/s

230.00 min 200.882 ft3 0.401 in 41.3 °F 173.7 °F 7 2.508 in 103.1 39.465 ft/s 28.31 ##### #####

%H2O

6.0343 dscm 0.4238 scm (meas.) dscmm scmm - - kg/hr

213.100 dscf 14.964 scf 6.6 dscfm scfm - - lb/hr

Gregg Szymkowicz Craig McKenzie

Test Personnel (signature/date) Project Leader (signature/date)

1018.9

923.0931.6940.8

1000.8

991.9983.8966.2

1010.1

#VALUE!

Century Aluminum (Sebree) 13B

3:15 PM

11/20/14 7:19 PM

∆P (H2O) Tm

2

Stack Diameter

Bake Oven Exhaust

975.1

Total Gain

Moisture

K FACTOR = 317.9

RESULTS Vmstd Vwstd Run Time

Vm

--

Qsd

gr/dscf

Particulate Mass (mg)

897.9865.0873.2881.3

1028.3

1036.674

Ts

%ISO

mg/dscm

Concentration Emission Rate

906.3957.9949.3914.6

Qsw

#VALUE!

∆Η (H2O) Vs

(°F) % ISO

LEAK CHECKS FINAL CATCH

Liquid Vol. (ml)

317.9

Sample Time Gas Temps

ESTIMATES FILTERS

Filter # Tare Weight

STACK DATA EQUIPMENT

pf-122

857.3

glass

842.8

835.792

7p-502

Stable for 15 sec (Y/N)

889.4

Pit

Sample 

Point DGM ∆H (in H20) Dry Gas Gas Temperatures (°F) Meter 

Reading (ft3)

 Standard DRY

(minutes)

Barometric Pressure C

850.1

Pitot Tube Leak Check (Pretest)

 EXTRA LEAK CHECK

sqrt 

(dP)

Standard Temperature

29.92

Standard Pressure

Post Test LC Side

Pressure Tap (in. H2O)
Location: Method: 

Source: Start Time: RUN No. 

Date: End Time: JOB No. 

% Moisture: 8 % est. METER BOX: Est. Tm: 50 °F 68 °F 527.67 Local Pbar (in. Hg) =

Barometric: 29.72 in Hg Y: 0.997 Est. Ts: 180 °F Elevation of meter above sea 

Static Press: -0.20 in H2O ∆H@: 1.873 in H2O Est. dP: 0.32 in H2O in Hg Actual Pbar (in. Hg) = 

Stack Press: 29.71 in Hg PROBE Est. Dn: 0.298 inches

%CO2: 2.00 % Cp: 0.84

%O2: 18.00 % NOZZLE: DGM initial 0.000 ______ 0.000 cf Pre Post Total (g)

%N2/CO: 80.00 % Dn: 0.273 in DGM final 0.003 ______ 0.006 cf DI: 330.6 563 232.4

Md: 29.04 lb/lb-mole Stack Area: ft2 Leak Rate 0.003 ______ 0.006 cfm SG: 278.6 316.4 37.8

Ms: 28.16 lb/lb-mole # of Points: 24 points Vacuum 14 ______ 16 in. Hg Other: 0

Pitot Pump 4.302

∆P Vac. Imp. Vs

Begin End (in. H2O) Inlet Outlet Stack Ideal Actual (in Hg) Probe Filter Exit (fps)

1 0.00 10.00 0.40 38.0 37.0 175 1.693 1.70 5 245 260 37 101.4 39.57 0.632

2 10.00 20.00 0.38 42.0 38.0 172 1.624 1.60 6 250 260 40 108.5 38.48 0.616 Ds(w) Inches

3 20.00 30.00 0.37 43.0 38.0 168 1.593 1.60 7 249 260 42 106.5 37.85 0.608 Ds(d) 50.00 Inches

4 30.00 40.00 0.36 43.0 38.0 181 1.519 1.60 8 250 259 44 95.5 37.72 0.600 Round ft2

5 40.00 50.00 0.37 40.0 38.0 177 1.566 1.60 8 253 260 45 95.7 38.12 0.608 Rectangle ft26 50.00 60.00 0.38 40.0 37.0 175 1.612 1.60 9 254 258 46 107.6 38.57 0.616

7 60.00 70.00 0.41 40.0 37.0 173 1.743 1.80 9 255 259 46 103.5 40.00 0.640

8 70.00 80.00 0.39 40.0 38.0 173 1.660 1.70 9 254 258 46 103.1 39.01 0.624

9 80.00 90.00 0.37 40.0 38.0 172 1.578 1.60 9 254 257 46 102.7 37.97 0.608

10 90.00 100.00 0.39 39.0 38.0 171 1.665 1.40 9 253 260 46 94.2 38.95 0.624 A B Post 

11 100.00 110.00 0.41 39.0 38.0 171 1.750 1.60 9 251 260 47 97.6 39.94 0.640 >= 3.0 >= 3.0 Pressu

12 110.00 120.00 0.38 38.0 36.0 178 1.599 1.60 9 254 259 43 105.2 38.66 0.616 Y Y Stable 

13 120.00 130.00 0.37 37.0 35.0 178 1.554 1.60 9 254 260 42 102.3 38.15 0.608

14 130.00 140.00 0.40 37.0 35.0 177 1.682 1.70 9 255 259 40 101.3 39.64 0.632

15 140.00 150.00 0.38 36.0 34.0 173 1.605 1.60 9 254 259 39 102.3 38.51 0.616

16 150.00 160.00 0.38 36.0 34.0 174 1.603 1.60 9 254 259 38 106.8 38.54 0.616

17 160.00 170.00 0.37 36.0 34.0 174 1.561 1.60 10 255 260 38 100.7 38.03 0.60818 170.00 180.00 0.39 36.0 34.0 174 1.645 1.60 10 254 260 38 106.9 39.04 0.62419 180.00 190.00 0.40 36.0 34.0 175 1.684 1.70 10 256 260 38 104.2 39.57 0.632 DGM initial ______ ______ 

20 190.00 200.00 0.42 35.0 34.0 176 1.764 1.60 10 256 260 38 103.3 40.58 0.648 DGM final ______ ______ 

21 200.00 210.00 0.44 35.0 33.0 178 1.840 1.80 10 256 259 38 108.1 41.60 0.663 Leak Rate ______ ______ 

22 210.00 220.00 0.45 35.0 33.0 179 1.878 1.90 10 256 259 37 104.3 42.11 0.671 Vacuum ______ ______ 23 220.00 230.00 0.41 35.0 33.0 177 1.717 1.70 10 257 258 37 109.0 40.13 0.640

24 220.00 230.00 0.40 35.0 33.0 177 1.675 1.70 10 255 254 37 99.0 39.64 0.632

Final DGM: 0.626

Max

4.805 m3 9.962 mm 2.7 °C 79.4 °C Vac. 41.804 mm 11.910 m/s

230.00 min 169.657 ft3 0.392 in 36.8 °F 174.9 °F 10 1.646 in 106.1 39.076 ft/s 28.31 ##### #####

%H2O

5.0762 dscm 0.3602 scm (meas.) dscmm scmm - - kg/hr

179.266 dscf 12.718 scf 6.6 dscfm scfm - - lb/hr

Gregg Szymkowicz Craig McKenzie

Test Personnel (signature/date) Project Leader (signature/date)

1072.2

993.3

1000.41007.21056.81049.51042.31028.31064.6

#VALUE!

Century Aluminum (Sebree) 13B

3:15 PM

11/20/14 7:19 PM

∆P (H2O) Tm

3

Stack Diameter

Bake Oven Exhaust

1035.0

Total Gain

Moisture

K FACTOR = 270.2

RESULTS Vmstd Vwstd Run Time

Vm

--

Qsd

gr/dscf

Particulate Mass (mg)

973.0944.9951.3958.6

1079.8

1086.615

Ts

%ISO

mg/dscm

Concentration Emission Rate

979.9

1021.11014.2

986.4

Qsw

#VALUE!

∆Η (H2O) Vs

(°F) % ISO

LEAK CHECKS FINAL CATCH

Liquid Vol. (ml)

270.2

Sample Time Gas Temps

ESTIMATES FILTERS

Filter # Tare Weight

STACK DATA EQUIPMENT

pf-123

938.6

glass

924.0

916.958

9p-502

Stable for 15 sec (Y/N)

965.9

Pit

Sample 

Point DGM ∆H (in H20) Dry Gas Gas Temperatures (°F) Meter 

Reading (ft3)

 Standard DRY

(minutes)

Barometric Pressure C

931.4

Pitot Tube Leak Check (Pretest)

 EXTRA LEAK CHECK

sqrt 

(dP)

Standard Temperature

29.92

Standard Pressure

Post Test LC Side

Pressure Tap (in. H2O)
 

APPENDIX III 

TEST METHOD FORMULAS AND NOMENCLATURE 
[last updated February 13, 2009] 

GEL Engineering, LLC 

A Member of The GEL Group, Inc.

TEST METHODS FORMULAS FOR STACK TESTING

INDEX 

page 

1. AREAS 2 

2. TEMPERATURE CONVERSIONS 2 

3. VOLUME OF AIR COLLECTED 3 

4. MOISTURE DETERMINATION 3 

5. MOLECULAR WEIGHT OF STACK GAS 3 

6. FLOW DETERMINATIONS 4 

7. ISOKINETICS DETERMINATION 5 

8. POLLUTANT DETERMINATIONS 5 

9. POLLUTANT CORRECTIONS 7

10. EFFICIENCY EQUATIONS 8 

11. METHOD 8 EQUATIONS 8 

12. NOMINAL NOZZLE SIZE 9 

13. F-FACTOR EQUATIONS 9 

14. CYCLONIC FLOW 11 

15. METHOD 5 POST TEST CALIBRATION 11 

16. WET BULB/DRY BULB 12 

17. VOLUME PER POINT (ISOKINETIC TESTING) 12 

 

18. INSTRUMENT TESTING 13 

19. HEAT INPUT 13 

20. CONVERSION FACTORS 14 

21. CONSTANTS 15 

22. NOMENCLATURE 16 
Page 2 

1. AREAS 

1.1 Area of Stack, Square feet (Round Stack)

As = 

Ds(width )

2

π

4











ft2

144 in2











1.2 Area of Stack, Square feet (Square Stack) 

As = D( ) s(width ) ( ) Ds(depth )

ft2

144 in2











1.3 Area of Nozzle, Square feet

An = 

Dn

2π

4











ft2

144 in2











2. TEMPERATURE CONVERSIONS 

2.1 Temperature, Degrees Celsius—> Degrees Fahrenheit

2.2 Dry Gas Meter Temperature, Degrees Fahrenheit—>Degrees Rankin

 Tm

oR = Tmo

F + 460

2.3 Stack Temperature, Degrees Fahrenheit—> Degrees Rankin

 Ts

oR = Tso

F + 460

 

T

o

F = To

( C)(9 / 5)+ 32
Page 3 

3. VOLUME OF AIR COLLECTED

3.1 Volume of Dry Gas Sample, Corrected to Standard Conditions (cubic feet)

Vm(std) = V( ) m ( ) Y

Tstd

Tm°R









Pbar +

∆H

13.6









Pstd

3.2 Volume of Dry Gas Sample, Corrected to Standard Conditions (liters)

Vm(std) = 

(Vm)(Y)(Pbar)(Tstd)

( ) Tm°R ( ) Pstd

4. MOISTURE DETERMINATION

4.1 Volume of Water Vapor Condensed in Impingers, Corrected to 

Standard Conditions 

Vwc(std) = V( lc)(0.04707)

4.2 Volume of Water Vapor Collected in Silica Gel, Corrected to 

Standard Conditions 

Vwsg(std) = V( wsg)(0.04715)

4.3 Water Vapor in the Stack Gas, Proportion by Volume 

Bws = 

Vwc(std) + Vwsg(std)

Vwc(std) + Vwsg(std) + Vm(std)

4.4 Dry Mole Fraction of Flue Gas 

Mfd =1 - Bws

5. MOLECULAR WEIGHT OF STACK GAS 

5.1 Nitrogen Content of Stack Gas, Percent 
Page 4 

%N2dry = 100 - %CO2dry - %O2dry - %COdry

5.2 Dry Molecular Weight of the Stack Gas 

Md = 0.44 %CO ( 2dry) + 0.32 %O ( 2 dry) + 0.28 %N ( 2dry + %COdry)

5.3 Wet Molecular Weight of the Stack Gas 

Ms = M( d)(Mfd) + 18 B( ws)

5.4 Sample Gas Density, pounds per cubic foot 

Ps(sgd) =

(Md)(Mfd)+ (18)(1 − Mfd)

385.3

5.5 Total Weight of Gas Sampled, pound 

Wsg = (Vm(std) + Vwc(std) + Vwsg(std))(Ps(std))

5.6 Excess Air, percent 

%EA =

%O2dry - 0.5 ( )(%COdry)

( ) 0.264 ( ) %N2 dry −( ) %O2dry − ( ) 0.5 ( ) %COdry











100

6. FLOW DETERMINATIONS 

6.1 Absolute Stack Gas Pressure 

Ps = Pbar + 

Pg

13.6

6.2 Average Stack Gas Velocity, feet per second 

Vs = K( )p ( ) Cp ( ) ∆P

Ts°R

( ) Ps ( ) Ms

6.3 Wet Volumetric Stack Gas Flow Rate, Actual Conditions, cubic feet 

per minute 

( )( ) 











=

min

60sec Qa Vs As
Page 5 

6.4 Dry Volumetric Stack Gas Flow Rate, Corrected to Standard Conditions, 

cubic feet per hour 

Qs = V( )s ( ) As

3600 sec

hr









( ) Mfd

Ps

Ts









Tstd

Pstd









7. ISOKINETICS DETERMINATION

7.1 Raw Isokinetic Variation, Percent 

Raw %I = 

( ) Ts°R ( ) K4 ( ) Vlc +

Vm

Tm°R

















Pbar +

∆H

13.6

















( ) 60 ( ) Vs ( ) Ps ( ) θ ( ) An



















100

K4 = 0.002676

7.2 Isokinetic Variation, Percent 

%I = (Ts°R)(Vm(std))(Pstd)

( ) 60 ( ) Vs ( ) Ps ( )θ ( ) An ( ) Mfd ( ) Tstd











100

7.3 Determining K-Factor 

K = ( ) 846.72 Dn

4

( )( ) ∆H@ Cp

2

( ) Mfd

2

( ) (Md)(Tm°R)(Ps)

( ) Ms ( ) Ts°R ( ) Pm













7.4 Determining DH 

∆H =[K]∆P

8. POLLUTANT DETERMINATIONS 

8.1 Concentration of Pollutant, Grains per Dry Standard Meter 

Csd = 

Mn

Vmstd









g

1,000,000 μg











15.432 grains

g










Page 6 

8.2 Concentration of Pollutant, Milligrams per Dry Standard Cubic Meter 

































μ













3

3

mstd

n

sd

m

5.315 ft 

1,000 g

g

V

M

C = 

3

8.3 Emission Rate for Pollutant, Grains per Dry Standard Cubic Foot —> 

Pounds per Hour 

Mp = C( ) sd ( ) Qs

lb

7000 gr











8.4 Emission Rate for Pollutant, Pounds per Hour—> Pounds per Million BTU 

( ) 











−

















=

20 9. % 2

20 9.

Q O

F

s

M

M

p

pBtu

8.5 Emission Rate of Pollutant based on Production Rate, Pounds per Hour—> 

Pounds per Ton 

Mpro =

Mp

P









8.6 Emission Rate of Pollutant, Actual Flowrate, Parts per Million -> 

Pounds per Hour 

Mp = 

Mn

1,000,000









( ) Qa

m

3

35.315 dscf











mole

0.02404 m3









Ps

Ts°R









Tstd

Pstd









MW g

mole









lb

453.6 g











8.7 Emission Rate of Pollutant, Standard Flowrate, Parts per Million -> 

Pounds per Hour 

Mp = 

Mn

1,000,000









( ) Qs

m

3

35.315 dscf











mole

0.02404 m3









MW g

mole









lb

453.6 g










Page 7 

9. POLLUTANT CORRECTIONS 

9.1 Concentration Correction to 12% Carbon Dioxide

Cs12 = C( )s

12

%CO2dry









9.2 Concentration Correction to 50% Excess Air Concentration 

Cs50 = C( )s

100 +%EA

150









9.3 Concentration Correction to 50% Excess Air Concentration using 

Raw ORSAT Data 

Cs50 =

Cs

1- ( ) 1.5 ( ) %O2dry − ( ) 0.133 ( ) %N2dry − ( ) 0.75 ( ) %COdry

21











9,4 Leak Rate Adjustment 

Vm = [ ] Vm − ( ) L1 − La θ − ( ) L1 − La

i = 2

N

∑ θi − (Lp − La)θp

9.5 Concentration of Pollutant, Corrected for Moisture, ppm 

Mn = 

Mn

Mfd









9.6 Concentration of Volatile Organic Compounds, Corrected to 

Standard Conditions, ppm as Carbon 

Mn VOC [ ] = 

( ) Mnp

3 Carbon

Propane











Mfd





















9.7 Concentration of Pollutant, Corrected for Oxygen, ppm 

Mn = M( )n

20.9 - %O2Corr

20.9 - %O2dry








Page 8 

9.8 Concentration of Pollutant (CO, NOx), Corrected for Carbon Dioxide, ppm 

Mn = M( )n 1 - %CO2dry

100









10. EFFICIENCY EQUATIONS 

10.1 Capture Efficiency, percent 

%C = Mp(outlet )

Mp(inlet)









100

10.2 Destruction Reduction Efficiency, percent 

%DRE = Mp(inlet) - Mp(outlet )

Mp(inlet )









100

11. METHOD 8 EQUATIONS 

11.1 Emission Rate of Pollutant (SO2), pounds/cubic foot 

CSO 2 = ( ) K3

N V( ) t − Vtb

Vsolution

Valiquot









Vmstd



















K3 = 7.061 ×10-5 lb / meq

11.2 Emission Rate of Pollutant (H2SO4), pounds/cubic foot 

CH 2SO 4 = ( ) K2

N V( ) t − Vtb

Vsolution

Valiquot









Vmstd



















K2 =1.081× 10-4 lb / meq
Page 9 

12. NOMINAL NOZZLE SIZE 

12.1 Nozzle Determination, inches 

Dn =

( ) 0.0358 ( ) Qm ( ) Pm

( ) Tm°R ( ) Cp ( ) Mfd

( ) Ts°R ( ) Ms

( ) Ps ∆ P













12.2 PM10 Nozzle Determination, inches 

 

Qa is obtained from PM10 manual (acfm) 

13. F-FACTOR EQUATIONS 

Note: All Cs values must be in pounds per standard cubic foot (lbs/scf) 

 See EPA 40 CFR 60, App. A, Method 9, Sec. 2.0.

Conversion Factors for Concentration 

From To Multiply by

g/scm ng/scm 1.00E+09 

mg/scm ng/scm 1.00E+06 

lb/scf ng/scm 1.60E+13 

ppm SO2 ng/scm 2.66E+06 

ppm NOx ng/scm 1.91E+06 

ppm SO2 lb/scf 1.66E-07 

ppm NOx lb/scf 1.19E-07 

13.1 Oxygen-Based F Factor, Dry Basis 

E = ( ) Cd ( ) Fd

20.9

20.9 − %O2dry









13.1a Oxygen-Based F Factor, Dry Basis, correcting to 7% Oxygen 

Dn =

Qa

Cp DP ( ) 85.49 * 3.1416 *60

576













Ts°R

( ) Ps ( ) Ms
















Page 10 

E = ( ) Cd ( ) Fd

20.9 − 7.0

20.9 − %O2dry









13.2 Oxygen-Based F Factor, Wet Basis 

( )( ) ( ) 













− −

=

w 2wet

w d

20 9 1 B s O

20 9

E C F

. %

.

13.3 Oxygen-Based F Factor, Dry/Wet Basis 

( )( )

( ) ws ( ) 2dry

w d

1 B 20 9 O

C F 20 9

E

− − %

=

.

.

Note: When pollutant is measured on wet basis and %O2 is measured on a dry basis.

13.4 Oxygen-Based F Factor, Dry/Wet Basis 

( )( )

( ) 20 9 O2wet

CdFd 20 9 1 Bws E

. %

.

−

−

=

Note: When pollutant is measured on dry basis and %O2 is measured on a wet basis.

E = ( ) Cdry ( ) Fc

100

%CO2dry









13.5 Carbon Dioxide-Based Factor, Wet Basis 

E = ( ) Fc ( ) Cwet

100

%CO2wet









13.6 Carbon Dioxide-Based Factor, Dry/Wet Basis 

E =

(Cw)(Fc)

Mfd













100

%CO2dry









Note: When pollutant is measured on wet basis and %O2 is measured on a dry basis.

13.7 Carbon Dioxide-Based Factor, Dry/Wet Basis 

E =

(Cdry)(Mfd)(Fc)100

%CO2 wet









Note: When pollutant is measured on dry basis and %O2 is measured on a wet basis.
Page 11 

14. CYCLONIC FLOW

14.1 Average Stack Gas Velocity, feet per second (Cyclonic), used for 

Isokinetic Determination Only 

Vs[cyc] = K( )p ( ) Cp ( ) ∆P

Ts

( ) Ps ( ) Ms

14.2 Average Stack Gas Velocity, feet per second (Laminar) 

Vs[lam] = K( )p ( ) Cp ( cosφ ∆( ) P )

Ts

( ) Ps ( ) Ms

Note: When using Microsoft Excel, the Cosine function is in Radians. To convert Degrees to Radians multiply 

by /180 (where =3.1416). 

14.3 Determination of Sampling Time 

Minutes / Point = cosφ(Base Time)

14.4 Average Differential Pressure 

∆Pvavg =

∑cosφ ∆P

n













2

14.5 Axial Volumetric Flow Rate

Qs = KpCpAs

Ts

PsMs

( ∆Pi cos φi)

i

n

∑

n

15. METHOD 5 POST TEST CALIBRATION 

15.1 Alternative Method 5 Post-Test Calibration 
Page 12 

Yqa =

θ

Vm









( ) ∆Havg

Pstd

Tstd









( ) Qm

2

( ) Tm°R ( ) Md(AMB)

( ) ∆H @ Pbar +

∆Havg

13.6









( ) Md

15.2 CRITICAL ORIFICE 

Vmstd = K1 ( )( ) Vm

Pbar +

∆H

13.6

Tm°R

















Vcr(std) = K( ) co ( )θ

Pbar

Tamb









Y =

Vcr(std)

Vm(std)









16. WET BULB/DRY BULB 

16.1 %Moisture at Saturation As a Function of Temperature 

W2 =

10

6.6911−

3144

TW +390.86

































Pb +

Ps

13.6









W2=Value in %Moisture at Saturation As a Function of Temperature Table 

* Note: Use Equation when Stack Temperature is greater than 211°F or less than 50°F. 

Also use Equation if the absolute value of the Static Stack Pressure is greater than 1.

16.2 Percent Moisture in Stack Gas 

%H2O = W2 − ( ) 0.000367 Td − Tw( ) 1+

Tw − 32

1571





















( ) 100

16.3 Water Vapor in the Stack Gas, Proportion by Volume 

Bws =

%H2O

100

17. VOLUME PER POINT (ISOKINETIC TESTING) 

17.1 Volume per Point 
Page 13 

Vm

Point

=

60 (Vs)(Ps)(θ)(An)(Mfd )(Tm°R)

( ) Υ Pbar +

∆H

13.6









( ) Ts°R

18. INSTRUMENT TESTING 

18.1 EFFLUENT GAS CONCENTRATION 

Cgas = ( ) Cavg − Co

Cma

Cm − Co









[EPA 40 CFR 60, App. A, Method 6C, 8.0; Method 7E, 8.0]

18.2 Concentration of Carbon Monoxide, Corrected for Carbon Dioxide, ppm 

Mn CO [ ] = M( ) n CO [ ] 1 - %CO2

100









[EPA 40 CFR 60, App. A, Method 10, 9.0]

18.3 SYSTEM CALIBRATION BIAS 

System Calibration Bias = System Cal. Response - Analyzer Cal. Response

Span











100

18.4 DRIFT CHECK 

%Drift = Final System Cal. Response - Initial System Cal. Response

Span











100

19. HEAT INPUT 

19.1 Heat Input Rate 

HI =

Qs

F









20.9 −%O2

20.9








Page 14 

20. CONVERSION FACTORS 

Conversion Factors for Concentration 

From To Multiply By Reference 

g/scm ng/scm 1.00E+09 EPA 40 CFR 60, App. A, 

Method 19 

mg/scm ng/scm 1.00E+06 EPA 40 CFR 60, App. A, 

Method 19 

lb/scf ng/scm 1.60E+13 EPA 40 CFR 60, App. A, 

Method 19 

ppm SO2 ng/scm 2.66E+06 EPA 40 CFR 60, App. A, 

Method 19 

ppm NOx ng/scm 1.91E+06 EPA 40 CFR 60, App. A, 

Method 19 

ppm SO2 lb/scf 1.66E-07 EPA 40 CFR 60, App. A, 

Method 19 

ppm NOx lb/scf 1.19E-07 EPA 40 CFR 60, App. A, 

Method 19 

scf m3 0.02832 EPA 40 CFR 60, App. A, 

Method 5 

g/ft3 gr/ft3 15.43 EPA 40 CFR 60, App. A, 

Method 5 

g/ft3 lb/ft3 2.205 X 10-3 EPA 40 CFR 60, App. A, 

Method 5 

g mg 0.001 EPA 40 CFR 60, App. A, 

Method 5 
Page 15 

21. CONSTANTS

Constants 

Abbreviation Name Value Units Reference 

Kp Pitot Constant 85.49 EPA 40 CFR 

60, App. A, 

Method 2 

Mw Molecular 

Weight of 

Water 

18.0 lb/lb-mole EPA 40 CFR 

60, App. A, 

Method 5 

P(std) Standard 

Pressure 

29.92 In. Mercury EPA 40 CFR 

60, App. A, 

Method 2 

T(std) Standard 

Temperature 

528 degrees Rankin EPA 40 CFR 

60, App. A, 

Method 2 

R Ideal gas 

constant 

21.85 ft3/lb-mole EPA 40 CFR 

60, App. A, 

Method 5 

%O2(amb) Ambient 

Percent Oxygen

20.9 %O2 by volume EPA 40 CFR 

60, App. A, 

Method 3B 

%CO2(amb) Ambient 

Percent Carbon 

Dioxide 

0.03 %O2 by volume EPA 40 CFR 

60, App. A, 

Method 3B 

ρω Density of 

Water 

0.002201 lb/ml EPA 40 CFR 

60, App. A, 

Method 5 

π PI 3.1416 
Page 16 

22. NOMENCLATURE 

 Symbol Description Unit 

 An Area of the Nozzle Square feet (ft2) 

 As Area of the Stack Square feet (ft2) 

 Bws Water vapor in the stack gas Proportion by volume 

 Bwa Moisture content of ambient air Proportion by volume 

 Cdry Particulate concentration, dry basis Mass/Volume 

 CH2SO4 Emission Rate of Hydrogen Sulfide Milligrams per cubic foot 

 Cp Pitot Coefficient Dimensionless 

 Cs Particulate concentration Mass/Volume 

 Cs12 Concentration correction to 12% Mass/Volume 

 Carbon Dioxide 

 Cs50 Concentration correction to 50% Mass/Volume 

 Excess Air 

 Csd Particulate concentration Grains per dry standard 

 cubic feet (gr/dscf) 

 Cwet Particulate concentration Mass/Volume, wet basis 

 Dn Diameter of the Nozzle Inches (in.) 

 dscf Unit of Flow measurement Dry standard cubic feet 

 Ds(depth) Depth of the stack Inches (in.) 

 Ds(width) Width of the stack Inches (in.) 

 E Emission rate Mass per heat BTU input 

 
Page 17 

 Symbol Description Unit 

 

 F F-Factor Using Fc or Fd

 Fc F-Factor, wet basis Using Cs and %CO2 on 

 a wet or dry basis

 Fd F-Factor, dry basis Using Cs and %O2 on 

 a dry basis 

 Fw F-Factor Using Cws and %O2 on 

 a wet basis 

 ft Unit of measurement Feet 

 g Unit of measurement Grams 

 gr Unit of measurement Grains 

 HI Heat Input mmBTU/hr 

 hr Unit of time measurement Hour 

 in Unit of measurement Inch 

 K Constant Constant used for DGM 

 K2 Constant used for H2SO4 titrations 7.061 X 10-5 lb/meq 

 K3 Constant used for SO2 titrations 7.061 X 10-5 lb/meq 

 K4 Constant used for Raw Isokinetics 2.676 X 10-3 lb/meq 

 Kcf Constant Correction Factor Constant 

 Kco Constant for Critical Orifice Constant 

 Kp Unit Conversion Constant for Velocity 85.49 

 La Average Leakrate Cubic feet 

 lbs Unit of Weight measurement Pounds 

 Li Initial Leakrate Cubic feet 

 
Page 18 

 Symbol Description Unit 

 

 Lp Post Leakrate Cubic feet 

 Md Molecular weight of stack gas, dry basis Pound per pound-mole 

 (lb/lb-mole) 

 Mfd Mole fraction dry basis of stack gas Percent 

 min Unit of time measurement Minutes 

 mg Unit of weight measurement Milligrams

 Mn Mass pollutant found in sampling train Micrograms (μg) 

 MnVOC Mass pollutant (VOC) determined with parts per million (ppm) 

 FID (as carbon) 

 MnP Mass pollutant (VOC) determined with parts per million (ppm) 

 FID (as propane) 

 Mp Total pollutant mass emissions rate Pounds per hour (lb/hr) 

 Mpro Total pollutant mass emissions rate Pounds per ton (lb/ton) 

 based on production rate 

 Mp(Off) Total pollutant mass emissions rate, Pounds per hour (lb/hr) 

 while the scrubber is Off 

 Mp(On) Total pollutant mass emissions rate Pounds per hour (lb/hr) 

 while the scrubber is On 

 Mp(inlet) Total pollutant mass Pounds per hour (lb/hr) 

 emissions rate, inlet 

 Mp(outlet) Total pollutant mass Pounds per hour (lb/hr) 

 emissions rate, outlet 

 Ms Molecular weight of stack gas, Pound per pound-mole 

 wet basis (lb/lb- mole) 

 MW Molecular weight of pollutant Grams per mole (g/mole) 

 n Number of sampling points Number 

 
Page 19 

 Symbol Description Unit 

 

 Pbar Barometric pressure Inches of mercury (in. of Hg) 

 Pg Pressure of stack gas Inches of water (in. of H2O) 

 (static pressure) 

 PMR Pollutant Mass Rate Mass per volume 

 ppm Unit of Measurement Parts per Million 

 Ps Absolute stack gas pressure Inches of mercury (in. of Hg) 

 Ps(sgd) Sample Gas Density Pounds per cubic foot 

 Ps(std) Absolute stack gas pressure, Inches of mercury (in. of Hg) 

 Pstd Standard pressure, 29.92 in. Hg Inches of mercury 

 (in. of Hg) 

 Qa Wet volumetric stack gas Actual cubic feet/hour 

 flow rate at actual conditions (acf/hr) 

 Qm Orifice Meter Calibration Dry standard cubic feet 

 per minute (dscf/min) 

 (Qm=0.75 cfm) 

 [at standard conditions] 

 Qs Dry Volumetric Stack Gas Flow Rate Dry standard cubic feet 

 corrected to Standard Conditions per hour (dscf/hr) 

 Qs(avg) Dry Volumetric Stack Gas Flow Rate Dry standard cubic feet 

 corrected to Standard Conditions per hour (dscf/hr) 

 Average flow before and after flow 

 measurement 

 Td Absolute dry gas stack temperature Degrees Rankin (°R) 

 Dry Bulb Temperature 

 Tm°R Absolute dry gas meter temperature Degrees Rankin (°R) 

 Ts°R Absolute stack temperature Degrees Rankin (°R) 

 Tstd Standard temperature (528°R) Degrees Rankin (°R) 

 
Page 20 

 Symbol Description Unit 

 

 Tw Absolute wet gas stack temperature Degrees Rankin (°R) 

 Wet Bulb Temperature 

 T°C Temperature in Celsius Degrees Celsius (°C) 

 T°F Temperature in Fahrenheit Degrees Fahrenheit (°F) 

 T°R Temperature in Rankin Degrees Rankin (°R) 

 sec Unit of time measurement Seconds 

 Valiquot Volume of Aliquot Milliliter (ml) 

 Vcr(std) Volume of gas passed through the critical Dry standard cubic feet (dcf) 

 orifice, correct to standard conditions. 

 Vlc Volume of water vapor condensed in Milliliter (ml) 

 the impingers 

 Vm Volume of gas sample as measured by the Dry cubic feet (dcf) 

 dry gas meter 

 Vm(std) Volume of gas sample as measured by the Dry standard cubic feet 

 dry gas meter, corrected to standard (dscf) 

 conditions 

 Vm(std)(Total) Volume of gas sample as measured by the Dry standard cubic feet 

 dry gas meter, corrected to standard (dscf) 

 conditions 

 Vs Average stack gas velocity Feet per second (ft/sec) 

 Vsolution Volume of Solution (Sample) Milliliter (ml) 

 Vwsg Weight of water vapor condensed in Grams (g) 

 silica gel 

 Vw(std) Volume of water vapor in the gas sample, Standard cubic feet (scf) 

 corrected to standard conditions 

 Vwc(std) Volume of water vapor condensed in Standard cubic feet (scf) 

 impingers, corrected to standard conditions 

 
Page 21 

 Symbol Description Unit 

 Vt Volume of Titrant used Milliliters (ml) 

 Vtb Volume of Titrant used on Blank Milliliters (ml) 

 Vwsg(std) Volume of water vapor condensed in Standard cubic feet (scf) 

 silica gel, corrected to standard 

 conditions 

 Wsg Total weight of Gas sampled Pounds 

 W2 Calculated constant, saturation %H2O Pounds 

 at Tw 

 Y Dry gas meter calibration factor Dimensionless 

 Yaq Dry gas meter calibration check value Dimensionless 

∆H@ Pressure drop across orifice meter of Inches of water (in. of H2O) 

 dry gas meter 

∆H Average pressure differential across Inches of water (in. of H2O) 

 the orifice 

∆P Average velocity head of stack gas Inches of water (in. of H2O) 

P Average squareroot velocity head of Inches of water (in. of H2O) 

 stack gas 

 %C Percent Capture Efficiency Percent (%) 

 %COdry Percent carbon monoxide by volume, Percent (%) 

 dry basis 

 %CO2dry Percent carbon dioxide by volume, dry Percent (%) 

 basis 

 %CO2wet Percent carbon dioxide by volume, wet Percent (%) 

 basis 

 %DRE Percent Destruction Reduction Efficiency Percent (%) 

 %EA Percent Excess Air Percent (%) 
Page 22 

 Symbol Description Unit 

 %I Isokinetic Variation Percent (%) 

 Raw %I Raw Isokinetic Variation Percent (%) 

 %N2 Percent nitrogen by volume, dry basis Percent (%) 

 %O2dry Percent oxygen by volume, dry basis Percent (%) 

 %O2wet Percent oxygen by volume, wet basis Percent (%) 

 %O2Corr Percent oxygen Correction Factor Percent (%) 

 %Scrubber Percent Scrubber Efficiency Percent (%) 

θ Total sampling time Minutes (min) 

θi Initial sampling time Minutes (min) 

θp Final sampling time Minutes (min) 

π pi, π = 3.1416 Constant 

 ø Angle between velocity vector and Degrees 

 stack axis 
 

APPENDIX IV 

ANALYTICAL DATA 
GEL Laboratories, LLC

2040 Savage Road

Charleston, SC 29407

Project Number: NSAS00214

Total Fluoride 

EPA Methods 13B 

Analytical Report

23618

Element One, Inc.

6319-D Carolina Beach Rd., Wilmington, NC 28412 el1 910-793-0128 FAX: 910-792-6853 e1lab@e1lab.com

elementOne 

23618 GEL M13B Report Packet

Page 3 of 15

SUMMARY OF RESULTS
elementOne 

23618 GEL M13B Report Packet

Page 4 of 15

Summary of Analysis

Summary of Method 13B Fluoride Analysis

Stack 1-R1 Stack 2-R2 Stack 3-R3

e23618-1 e23618-2 e23618-3

Element Total mg Total mg Total mg

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

Particulate F- 0.081 < 0.05 0.325

Gaseous F- 0.136 0.414 0.400

Reagent Blank 

DI H2O

Reagent Blank

Acetone

Reagent Blank

Filter

e23618-4 e23618-5 e23618-6

Element Total mg Total mg Total mg

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

Particulate F------ < 0.05 < 0.05

Gaseous F- < 0.05 ----- -----
elementOne 

23618 GEL M13B Report Packet

Page 5 of 15

ANALYTICAL NARRATIVE
elementOne 

23618 GEL M13B Report Packet

Page 6 of 15

Element One Analytical Narrative

Client: GEL Laboratories, LLC Element One #: 23618

Client ID: NSAS00214 Analyst: PQT

Method: M13B Dates Received: 12/04/14

Analytes: Total F Dates Analyzed: 12/05-11/14

Summary of Analysis

The initial volumes of the liquid samples were taken and the acetone probe wash

samples were evaporated to dryness, then reconstituted with DI water. The 

liquid samples were filtered through a #541 filter. The original sample filter and 

the filter used for the filtration of the probe wash were placed in a nickel crucible; 

made basic with calcium oxide, macerated and heated to dryness in a 100oC 

oven followed by ashing in a 600oC furnace. The ash was then combined with 

NaOH and returned to the furnace for fusion. The crucible contents were then 

dissolved in 25% H2SO4, recombined with the corresponding probe wash filtrate 

and brought to a final volume of 500mL with DI water. The impinger catch 

sample was prepared in the same manner, with the exclusion of the sample filter, 

and was brought back to the original sample volume with DI water. The reagent 

blank samples were prepared in the same manner and brought to a final volume 

of 500mL. An aliquot of the samples were then distilled. From the distillate, the 

total F- was determined with an Accumet® AR25 pH/ion meter and a Symphony 

combination fluoride electrode. 

Detection Limits

The Accumet® AR25 pH/ion meter reporting limit was 0.1μg/ml for fluoride. 

Analysis QA/QC

For Total Fluoride analysis, duplicate analyses relative percent difference (RPD) 

and spike sample recovery data are summarized in the Quality Control Section. 

Additional Comments

The reported results have not been corrected for any blank values or spike 

recovery values. The reported results relate only to the items tested or 

calibrated. 
elementOne 

23618 GEL M13B Report Packet

Page 7 of 15

QUALITY CONTROL SUMMARY
elementOne 

23618 GEL M13B Report Packet

Page 8 of 15

Summary of Quality Control Data

Fluoride Duplicate Analysis RPD

(Laboratory QC limits: <10% for RPD)

Stack 2-R2

Element RPD

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

Particulate Fluoride NA

Gaseous Fluoride 8.3%

Fluoride Spike Recoveries

(Laboratory QC limits: 90-110% for Spike Recoveries)

Stack 3-R3

Element Recovery

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

Particulate Fluoride 104%

Gaseous Fluoride 94%
elementOne 

23618 GEL M13B Report Packet

Page 9 of 15

SAMPLE CUSTODY
elementOne 

23618 GEL M13B Report Packet

Page 10 of 15
elementOne 

23618 GEL M13B Report Packet

Page 11 of 15

ANALYTICAL DATA
elementOne 

23618 GEL M13B Report Packet

Page 12 of 15

Analytical Calculations

Spike RecoverySpike (%) = ((Spiked Result (μg/L) + Spike Flush Result (μg/L)) – Sample Result (μg/L)) X100

 Spike Amount (μg/L)

WhereSpike Result = Raw sample concentration (ppb)—13B-Data Sheet

Spike Flush Result = Raw sample concentration (ppb)—13B-Data Sheet

Sample Result = Raw sample concentration (ppb) – 13B -Data Sheet

Spike Amount—13B- Data Sheet

Duplicate Analysis RPDRPD (%) = (Duplicate Result (μg/L) - Sample Result (μg/L)) X100

 Average (μg/L)

WhereDuplicate Result = Raw sample concentration (ppb)—13B -Data Sheet

Sample Result = Raw sample concentration (ppb)—13B -Data Sheet

Average= (Duplicate + Sample Results)

2
elementOne 

23618 GEL M13B Report Packet

Page 13 of 15
elementOne 

23618 GEL M13B Report Packet

Page 14 of 15
elementOne 

23618 GEL M13B Report Packet

Page 15 of 15
Client: GEL

RFA #: NSAS00214

Method: EPA M315

0.6 mg

19.1 mg (in 130 mls)

0.3 mg (in 150 mls)

2.5 mg

16.1 mg

9.2 mg

MCEM

Acetone Blank

Report Summary

Filter Blank

MeCl Blank

Total

SAMPLE ID

Run 1 Stack 1

Run 2 Stack 2

Run 3 Stack 3
 

APPENDIX V 

PLANT PROCESS DATA 
1

McKenzie, Craig

From: Coomes, Brandon <Brandon.Coomes@centuryaluminum.com>

Sent: Friday, December 05, 2014 9:56 AM

To: McKenzie, Craig

Subject: A446 Testing - Anode Production Rates

Attachments: Alcan A446 HF report 12662-21.doc

Craig, 

The average green anode throughput on 11/20 and 11/21 was 15.9 ton green anode per hour. Please use this rate for 

calculating the A446 scrubber total fluoride and POM emission rates. 

Please reference the 2012 A446 13B test report if you have any questions on how to show the emission results. 

 Thanks, 

Brandon Coomes

Environmental Engineer, Sebree

 

9404 State Route 2096 

Robards, KY 42452 

270.521.7454 (Century Aluminum Sebree, LLC) 

270.860.0057 (Mobile) 

brandon.coomes@centuryaluminum.com
 

APPENDIX VI 

EQUIPMENT CALIBRATION RECORDS 






Annual calibration date:

Pitot

Runs------------ R1 Cp R2 Cp R3 Cp R1 Cp R2 Cp R3 Cp

P-202 0.440 0.835 0.460 0.817 0.460 0.817 0.440 0.835 0.420 0.855 0.410 0.865 0.320 0.310 0.310 0.313 0.990 0.84 *

P-301 0.440 0.835 0.450 0.826 0.420 0.855 0.440 0.835 0.440 0.835 0.450 0.826 0.320 0.310 0.310 0.313 0.990 0.84 *

P-303 0.390 0.887 0.400 0.876 0.400 0.876 0.500 0.784 0.510 0.776 0.500 0.784 0.320 0.310 0.310 0.313 0.990 0.83 *

P-501 0.460 0.817 0.470 0.808 0.480 0.800 0.430 0.845 0.410 0.865 0.420 0.855 0.320 0.310 0.310 0.313 0.990 0.83 *

P-502 0.430 0.845 0.440 0.835 0.450 0.826 0.420 0.855 0.420 0.855 0.430 0.845 0.320 0.310 0.310 0.313 0.990 0.84 *

P-503 0.430 0.845 0.440 0.835 0.440 0.835 0.430 0.845 0.430 0.845 0.440 0.835 0.320 0.310 0.310 0.313 0.990 0.84 *

P-504 0.410 0.865 0.400 0.876 0.390 0.887 0.440 0.835 0.450 0.826 0.440 0.835 0.320 0.310 0.310 0.313 0.990 0.85 *

P-505 0.440 0.835 0.440 0.835 0.450 0.826 0.430 0.845 0.450 0.826 0.440 0.835 0.320 0.310 0.310 0.313 0.990 0.83 *

P-507 0.440 0.835 0.460 0.817 0.450 0.826 0.420 0.855 0.420 0.855 0.410 0.865 0.320 0.310 0.310 0.313 0.990 0.84 *

P-601 0.450 0.826 0.430 0.845 0.440 0.835 0.420 0.855 0.430 0.845 0.430 0.845 0.320 0.310 0.310 0.313 0.990 0.84 *

P-602 0.480 0.800 0.480 0.800 0.490 0.792 0.410 0.865 0.420 0.855 0.410 0.865 0.320 0.310 0.310 0.313 0.990 0.83 *

P-603 0.430 0.845 0.430 0.845 0.420 0.855 0.460 0.817 0.470 0.808 0.460 0.817 0.320 0.310 0.310 0.313 0.990 0.83 *

P-604 (inc) 0.440 0.835 0.450 0.826 0.450 0.826 0.440 0.835 0.450 0.826 0.460 0.817 0.320 0.310 0.310 0.313 0.990 0.83 *

P-701 0.430 0.845 0.430 0.845 0.440 0.835 0.460 0.817 0.470 0.808 0.470 0.808 0.320 0.310 0.310 0.313 0.990 0.83 *

P-702 (inc) 0.450 0.826 0.440 0.835 0.440 0.835 0.430 0.845 0.440 0.835 0.430 0.845 0.320 0.310 0.310 0.313 0.990 0.84 *

P-705 0.420 0.855 0.410 0.865 0.420 0.855 0.450 0.826 0.460 0.817 0.460 0.817 0.320 0.310 0.310 0.313 0.990 0.84 *

P-901 0.420 0.855 0.420 0.855 0.430 0.845 0.430 0.845 0.430 0.845 0.420 0.855 0.320 0.310 0.310 0.313 0.990 0.85 *

P-1001 0.390 0.887 0.390 0.887 0.380 0.899 0.470 0.808 0.460 0.817 0.460 0.817 0.320 0.310 0.310 0.313 0.990 0.85 *

P-1002 0.420 0.855 0.430 0.845 0.430 0.845 0.430 0.845 0.430 0.845 0.440 0.835 0.320 0.310 0.310 0.313 0.990 0.85 *

PTC-301 0.430 0.845 0.440 0.835 0.430 0.845 0.410 0.865 0.410 0.865 0.420 0.855 0.320 0.310 0.310 0.313 0.990 0.85 *

PTC-501 0.440 0.835 0.450 0.826 0.450 0.826 0.410 0.865 0.410 0.865 0.400 0.876 0.320 0.310 0.310 0.313 0.990 0.85 *

PTC-601(inc) 0.430 0.845 0.420 0.855 0.430 0.845 0.440 0.835 0.430 0.845 0.420 0.855 0.320 0.310 0.310 0.313 0.990 0.85 *

PTC-602 0.420 0.855 0.430 0.845 0.420 0.855 0.420 0.855 0.430 0.845 0.420 0.855 0.320 0.310 0.310 0.313 0.990 0.85 *

PTC-701 0.440 0.835 0.430 0.845 0.440 0.835 0.440 0.835 0.440 0.835 0.430 0.845 0.320 0.310 0.310 0.313 0.990 0.84 *

PTC-702 0.440 0.835 0.440 0.835 0.450 0.826 0.410 0.865 0.400 0.876 0.410 0.865 0.320 0.310 0.310 0.313 0.990 0.85 *

PTC-1001 0.430 0.845 0.440 0.835 0.440 0.835 0.440 0.835 0.430 0.845 0.430 0.845 0.320 0.310 0.310 0.313 0.990 0.84 *

PTC-1002 0.420 0.855 0.420 0.855 0.420 0.855 0.460 0.817 0.460 0.817 0.460 0.817 0.320 0.310 0.310 0.313 0.990 0.84 *

SP-502 0.430 0.845 0.430 0.845 0.420 0.855 0.430 0.845 0.440 0.835 0.430 0.845 0.320 0.310 0.310 0.313 0.990 0.85 *

SP-2 0.450 0.826 0.460 0.817 0.460 0.817 0.440 0.835 0.430 0.845 0.430 0.845 0.320 0.310 0.310 0.313 0.990 0.83 *

SP-5 0.430 0.845 0.420 0.855 0.410 0.865 0.440 0.835 0.440 0.835 0.430 0.845 0.320 0.310 0.310 0.313 0.990 0.85 *

SP-6 0.470 0.808 0.470 0.808 0.460 0.817 0.420 0.855 0.420 0.855 0.430 0.845 0.320 0.310 0.310 0.313 0.990 0.83 *

Client

City, State R-1

Source R-2

Project No. R-3

Date Operators

GEL Engineering, LLC

A Member of The GEL Group, Inc.

2040 Savage Road, P.O. Box 30712, Charleston, SC 29407

(843) 769-7378 FAX (843) 769-7397

12/15/2014 Craig McKenzie

Anode Bake Furnace P602/502/702 Yes

nsas01214 P602/502/702 Yes

Century Sebree, LLC Pitot Tubes Used Post Inspection OK

Robards, Ky P602/502/702 Yes

Pitot Calibration 8/7/2014

Positive Leg ∆P Negative Leg ∆P

∆P (standard) Avg. Cp

Type S 

AVG 

Cp