# liAR 1)2008 Georgia Department of Natural Resources Environmental Protection Division• Air Protection'"Bfa11ch 4244 International Parkway. Suite 120.Atlanta. Georgia 30354 

### 404/363-7000. Fax: 

### 404/363-7100 Noel Holcomb, Commissioner Carol A. Couch, Ph.D., Director 

## tMEtJl°RANDUM: 'TO: THROUGH: FROM: Karen Hays 

## ('J...tl) ,() Ross Winne, DeAnna Oser 

### P 

# U

.

# fJ!:::!
Daniel McCain 

# fiY'.

. SUBJECT: SOURCE TEST REPORT REVIEW The following test has been reviewed and was conducted in an acceptable fashion for the purpose intended. COMPANY NAME COMPANY LOCATION SOURCE TESTED POLLUTANT DETERMINED REPORT REVIEWED BY TEST WITNESSED BY DATE(S} OF TEST DATE RECEIVED BY APB MAXIMUM EXPECTED OPERATING CAPACITY OPERATING CAPACITY ALLOWABLE EMISSION RATE APPLICABLE REGULATION

CONTROL EQUIPMENT AND MONITORING DATA

TEST RUN# GAS TEMPERATURE Inlet (oF) Outlet GAS MOISTURE Inlet (%) Outlet GAS FLOW RATE Inlet (ACFM) Outlet GAS FLOW RATE Infet (DSCFM) Outlet POLLUTANT Inlet CONCENTRATION (PPM 

### @ 15% 02) Outlet EMISSION RATE Inlet 

### (NfA) Outlet DESTRUCTION EFFICIENCY 

### (%) OTHER INFORMATION

cc: Ross Winne Reference Number: 200800189 Southern Natural Gas-Hall Gate Compressor Station Milledgeville, GA Compressor Engine No. 3 Carbon Monoxide Daniel McCain Daniel McCain December 20, 2007 February 8, 2008 4730 Horsepower

4441.33 Horsepower
93% DRE Permit No. 4922-009-0035-V..Q2-O; Condition 3.2.1 40 CFR Part 63 Subpart ZZZZ Oxidation Catalyst (C003C) Catalyst Bed Inlet Temperature

# = 777.67 deg F, Pressure Drop Across the Bed

# = 2.73 in. H20, Engine Speed

# =1000.67 1 2 3 

### AVERAGE

239.82 238.31 240.45 239.52

7.34 7.52 7.17 7.34

96.933,

The RICE MACT requires that the catalyst bed percent reduction be tested by measuring the carbon monoxide concentration before and after the bed. Consequently, the air flow was not measured. The minumum reduction is 93 percent.

AIRS Number: 00900035 Printed: 

### 3/11/2008

## SOURCE EMISSIONS TEST AUDIT FOR: Southern Natural Gas

- Hall Gate Milledgeville, GA CompressorEngine (C003) December 20, 2007

### ~ Submitted: 

### 1117/08 By: Daniel McCain

Source and Information:



### The facility assists in the transport ofnatural gas through a pipeline byreceiving low pressure inlet natural gas and compressing the natural' gas to increase the pressure in the pipeline to maintain the downstream flow. The facility uses three compressor engines to compress the gas. These engines are COOl, C002, and C003.

Test Requirements and Procedures:



### The facility is subject to the requirements ofPenn it No. 4922-009-0035-V-02-0. According to the pennit, Engine C003 is subject to Condition 3.2.1, which requires a reduction ofCO emissions by 93% ormore under Subpart ZZZZ

### and PSD avoidance. To assure compliance with this condition, the facility elected to conduct a test for CO at the inlet and outlet ofthe catalyst for the engine. The test method used was ASTM Method 06522-00.

Audit Results:



### I arrived on site at about 9:20 a.m. and was met by 

### Mr. Jim Wilson and 

### Mr. Loren Hansen of SouthernNatural Gas. 

### Mr. Hansenwas to conductthe testing. After arriving on sitethe facilitywas attempting to start the engine up. After the engine had been started and the proper pressure was attained Mr. 

### Hansenprepared to startRun 1. Duringthe firstrun, Mr. 

### Hansenplanned onrecording NOx, CO, NO, N02,and 02inorderto use thatrun as an interference check foreachanalyzerbeing used. Each subsequentrun would consistofrecordings that onlyincludedCO. As the firstrun was underway, 

### Mr. HansennoticedthattheNO was high andtheN02was low atthe inletof the catalyst, whiletheN02was high and theNO was low atthe outlet. 

### Mr. Hansen stoppedRun I and attempted

. to detennine ifthere was aproblem with any ofthe set up orequipment that may explain the NOx gas values. Afterperiod oftime ofcheckingthe equipment and setup, Mr. 

### Hansen determinedthat the values mustbe accurate sincethe setup was correctandthe equipmentwas functioningproperly. As he prepared to startRun 1, the engine hadto be shutdown and anotherengine had

### to bebrought online to maintain the proper pressure for the pipeline. I departed the facility at about 3:00 p.m. When I departed, Mr. 

### Wilson and 

### Mr. Hansen were still waiting to get the engines started up and running underthe proper conditions again.

## Source Emissions TestAudit- Methods 3A, 6C, 7E, 10 & 

## 20 ISMP·33 Rev. 

### 7/07

Company:

## Sbl.tf~**~+ly!( C~**  Company Contact:·

### _~.AC.J,.!!:MJo...-"w~1.:..:16~Yl=-- __ ...:....-

__


### Address:

## tfIIill-t~1lL ,J

## ,~ Test Team: 

## 5'0\...**~~** 

## t\r

....**l~(** 

## Ge.t

Source Tested:

## ~ 

# C60> TeamLeader: 

# Lo('tM 

# Ii**~**
Date: (/-

## 1).0/. 1- TestAuditor(s):

## ~vt.**McCa..~** 1.' Applicability
WhichMethod{s) does this audit cover? 3A 

# 0 6C D7E D 10 D 20 

# 0

- 

# 4bnt,**bbS'~~~tI**
Is this a low emitting source (<= 20 ppm)? Yes 

### I No (Method 7E only)



### 2. Measurement System Performance Specifications

Calibration Error: System Bias: 

## Drift:

. IIiterference N02 to NO ConverterEfI.:

. <± 2.0% (or<= 0.5 

### ppmv) ofthecalibration span <± 5.0% (or<= 0.5 ppmv) for low and upscale cal gases <± 3.0% (or <=0.5 ppmv) ofthe calibration span < 2.5% (or<0.5ppmv or <0.2 ppmv) ofthe calibration span >=90%



### 3. Apparatus and Calibration Gases Sampleprobe construction material? Glass 

# 0 Stainless 

# 0' Other 

# 0

Sample probe heated?**~/No.·** 

### ltPs/No Temperature:
Sample line heated? Temperature:

.Sample line construction material? Teflon 

# 0' Stainless DOther D

Particulate filter? Yes**~.** 

### In-stack 

# 0 Out-of-stack 

# 0 Heated? Yes 

### I No
Is concentration detennined onwet or 

### drybasis? 

### Wet!2( Dry

## ~
If

### drybasis, is moisture removal system adequate?

### ~No Ifwetbasis, is a dilution probe system used?**Yes/~** 

### .
Is sample pump non-reactive

## to gas stream sampled?**~/No·** 

### Is 

### flow rate control adequate?**~/No**



### Page 1 of

### 5

### When was the converter efficiencytest conducted? Date:

### ~**lyw'~** Which test method was used? N02 gas in calibration mode? Yes / No

N02 gas before dilution point for dilution systems? Yes / No

Tedlar Bag Procedure Yes / No Test Time Length (minutes):



### 7. System Bias and System Calibration ErrorChecks 

### ISMP·33 Rev

. . 

### 7/07

Note: A system bias check is conducted on a non-dilution sampling system. A calibration error check is conducted on 

### a dilution sampling system. Which cal gas best approximates measured emissions?

Record calibration data in the table at the end.

8. Determination ofStratification 

### Mid-Level 

# 0 High-Level 

# 0

When was the stratification test conducted? Date / Time

## /Vof.~ (;.r 

# lJT'#t.,**~~.**

How many points were sampled? 12 

# o 3 

# o Other:

.....____ -'--_

How were point locations determined?

Was each point sampled for twice the system response time? Yes/No

What was the mean concentration for the points sampled?

Point and Mean Concentrations Required Sampling Point(s) for Test Runs Concentration at each point is <= ±5.0% of Single point that most closely matches the
mean concentration or <=±<>.5 ppm mean (whichever is less restrictive) = unstratified Concentration at each point is <= 

## +10.0% of Three (3) 

### points at 16.7, 50.0, and 83.3 percent

. mean concentt:ation or<= +1.0 ppm ofmeasurement line

(whichever is less restrictive) 

## =minimally. stratified Concentration at eachpoint is > 

## +10.0% of Twelve (12) points according to Table 1·1 or mean concentration or > 

### +1.0 ppm (whichever Table 1·2 in Method 1 is less restrictive) =stratified

9. Sample Collection



### Is the sampling rate within 10% ofthe flow rate determined during the system response time check?**Y~/No** 

### .
Was the sampling system purged for at least two times the system response time with the probe in the stackbefore starting to record data 

### for the test run?**~I** 

### No
Page 3 of5

### Calibration Certified System Gas 

### Level cal gas

. Response (units) Time (units)

Run#= Low-level gas Gas = 

### Upscale gas Run # = 

### Low-level gas Gas = 

### Upscale gas Run #

# = Low-level gas Gas 

# = Upscale gas Run # 

# = Low-level gas Gas = 

### Upscale gas Initial values System -BiasI or Cal EiTorz (% ofcal span) Final values System BiasI or Cal Errorz (% ofca,l span) 

### ISMP-33 Rev. 7/07



### Drift (% of cal span) D= ISBfinal '- SBil

Note: Response time should be the time it takes measured concentration to reach 95%'ofupscale gas or 5% ofthe**low~level** gas 

### or 

### 0.5ppm (whichever is less restrictive) ofthe certified gas concentration, whicheveris longer. I 

### Refers to the pre- and post-run system bias checks ofanon-dilution system. 2 Refers to the pre- and post-run system calibration error checks ofadilution'system.

Page 5 of5February 6, 2008

Mr. James Eason
, Stationary Source Unit Manager Georgia Environmental Protection Division 4244 International Parkway Suite 120 Atlanta, Georgia 30354

Re: Southern Natural Gas Company Hall Gate Compressor Station, Baldwin County Title V Permit No,**4922~009-0035-V-02-0** Annual RICE MACT Compliance Test Results

Dear Mr. Eason: 

# 'KdF 2Q:lgObl'i
At ISouthern 

# ep Natura! Gas

an EI Peso company

Attached are tables of results of the Annual RICE MACT testing at Hall Gate Compressor Station. CO tests were performed on-site December 20, 2007, using a portable analyzer for Emission Unit C003 (Compressor Engine No, 3), As shown on the following table, all average results are within permitted limits.

I certify that based on information and belief formed after reasonable inquiry, the statements and information in this document are true, accurate, and complete.

Ifyou have any questions. please contact Mr, Wayne Parrott at**478-477~1221** ext 2024.
Very truly yours, A 

# /l

# ~&:L- Thomas C. Dender Director, Southeast Division EWP/bg

UPS No.: 1Z 334 569 02 9258 9935

Cc: US EPA Region IV Air and EPCRA Enforcement Branch Sam Nunn Atlanta Federal Center 61 Forsyth Street, SW Atlanta, GA 30303·3104

UPS No.: 1Z334 569 02 94274888

Southern Natural Gas 1900 5'" Avenue Birmingham. Alabama 35203 PO Box 2563 Birmingham. Alabama 35202.2563Emission Unit C003 (Compressor Engine No.3) Hall.Gate Compressor Station Permit No. 4922-009-0035-V-02-O Date Tested: December 20,2007 CO Results CO Permit Limit
Percent Reduction Across the Catalyst Run #1 96.94 Run #2 

### 96.84 Run #3 97.02 >=93.00% Average 

### 96.93

### 323.00 323.00 324.00 324.00**:"~'323:~ /7X,"~<?'"**  

## 32S.40**'O~06%' '5~bo%,'** 


### 321.00 320.00 321.00 321.00



### ,**"~20;6b'., 3~.4Q** 

### ..·· 0.87$ 

## 5.00%

326.00 327.00 327.00 325.00 

## ",326;00' '. 323.40·,."19 41 345 20 41 345 19 41 344 20 41 343 19 41 344 12.4 19 41 343 12.5 19 41 345 12.4 20 41 346 12.5 19 40 348 12.4 18 40 346 12.4 18 40 345 12.4 19 41 346 12.4 19 41 348 12.4 19 41 346 12.4 18 40 346 12.4 19 41 345 12.4 19 41 348 12.4 18 40 345 12.4 19 41 344 12.4 19 41 348 12.4 19 40 343 12.4 19 41 346 12.4 19 41 345 12.4 19 41 344 12.4 41 345 12.4 41 344 12.4 41 344 12.4 41 344 12.4 41 346 12.4 41 344 12.5 4111.00 12.40 43.00 14.00 11.00 44.00 11.00 12.40 44.00 14.00 10.00 44.00 14.00 11.00 12.40 43.00 14.00 10.00 44.00 14.00 ",.,..'**~;'** 11.00 12.40 44.00 15.00 10.00 44.00 14.00 

# t, 11.00 12.40 44.00 14.00 10.00 44.00 14.00

### ~" 11.00 12.40 43.00 14.00 10.00 44.00 15.00 

# l "
11.00 12.40 43.00 14.00 10.00 12.30 45.00 15.00 11.00 12.40 43.00 14.00 10.00 12.30 44.00 14.00**~,** 11.00 12.40 44.00 14.00 10.00 12.30 44.00 14.00**~',** 11.00 12.40 44.00 14.00 10.00 12.30 44.00 14.00 

## :F,"

11.00 12.40 43.00 14.00 11.00 12.40 43.00 14.00 

## :1' 

# r 11.00 12.40 43.00 14.00 11.00 12.40 43.00 14.00**~ ~~**  .:,' 11.00 12.40 42.00 14.00 10.00 12.40 43.00 14.00 !': 11.00 12.40 43.00 14.00 11.00 12.30 44.00 14.00 

# f 11.00 12.40 42.00 14.00 10.00 12.30 43.00 14.00 

## :i**~~~**

## ,:',

0" 11.00 12.40 43.00 14.00 11.00 12.30 44.00 14.00 it;

'f-",_ 11.00 12.40 43.00 14.00 10.00 12.40 43.00 14.00**;f';'~** 11.00 12.40 44.00 14.00 11.00 12.30 44.00 14.00 11.00 12.40 44.00 14.00 10.00 12.30 43.00 14.00**:~: ~**  11.00 12.40 44.00 14.00 10.00 12.40 43.00 14.00 

### "**;~:'** i. 11.00 12.40 44.00 14.00 10.00 12.30 44.00 14.00 11.00 12.40 43.00 14.00 10.00 12.30 44.00 14.00 11.00 12.40 44.00 14.00 10.00 12.40 43.00 14.00 11.00 12.40 43.00 14.00 10.00 12.30 43.00 14.00 10.00 12.40 44.00 14.00 10.00 12.30 44.00 14.00 10.00 12.30 44.00 14.00 10.00 12.30 43.00 14.00 10.00 12.40 43.00 14.00 10.00 12.30 44.00 14.00 11.00 12.40 43.00 14.00 10.00 12.30 44.00 14.00 10.00 12.40 43.00 14.00 11.00 12.30 44.00 14.00 11.00 12.40 44.00 14.00 11.00 12.30 44.00 14.00342 12.4 342 12.4 341 12.4 343 12.4 340 12.5 340 12.4 12.4 342 12.5 12.4 342 12.4 12.4 343 12.5 12.5 342 12.5 12.4 343 12.5 12.4 343 12.5 12.4 343 12.5 12.4 344 12.5 12.4 342 12.5 12.4 342 12.5 12.4 341 12.5 12.4 344 12.5 12.4 345 12.5 12.4 342 12.5 12.4 342 12.5 12.4 341 12.5 12.4 340 12.5 12.5 342 12.5 12.4 340 12.5 12.5 340 12.4 12.4 342 12.5 12.4 343 12.5 12.4 341 12.5 12.5 343 12.5 12.5 340 12.5'f

,**~~W·, -1~'** 

### ---1:63~**1~-**

__ 1i.'QQ:OQ

11!QJ,OQ, "**,11~** -'**~<Q3ioO;**

"GaSConc. 

# am**~** 

## GilD

,**_~1'.QO** 

# - 12.40 11.00 12.30 11.00 12.30 ,11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 

# 'Rwi2B

'.,

,

### . '. 

# ','Poe;t

..Catalyst

'·,'ibne'< 

# " 217:Gl.:oO**~.** 1 ." '.,'**~** '. t' ,: '.**,1l7t~:QQ** 11.00 12.30**~,~,** 

# •••• 11.00 12.30**i'~** f 11.00 12.30 I, 11.00 12.30 [ 

## f 11.00 12.30 

### r ,17:,Q:OQ ' 11.00 12.30 i.' 

### f 17:1.1;01} " 11.00 12.30**~, tt:~**  11.00 12.30 

# r.**1~:j~m,** 11.00 12.30 

## f 1:1:

### tft.:OIl 11.00 12.30**~' ,f~:tS:®**  11.00 12.30 

## k 11:f6!OO 11.00 12.30**~** '11;1 i

### 1:00 11.00 12.30**~** 

## -nm);Oo: 11.00 12.30**~" i~**  -j1:19-,.9P 11.00 12.30

,j**,17~q;0()** 11.00 12.30
-iu

. 

### • 'n:21,OO, 11.00 12.30**~:** ti\**:17:~QQ** 11.00 12.30 t 17:23:OQ 11.00 12.30 f'**~,\,** 17:?4:QO ,,' 11.00 12.30 I, 

### ,17:25;00

- 11.00 12.30 \, k 

## 11:26.-00 11.00 12.30 -\':' 

### f 17:ai:OO 10.00 12.30 k'-'" 

### 17:211:00-"', 10.00 12.30 f 

### , 

## 1taoo 10.00 12.30**~** It 

# t __**17;~** 11.00 12.30**,1!:~t:Q()** - 11.00 12.30**l::~** 

## , 17:32:00 10.00 12.30**17~;oO-** 11.00 12.30 "1,7:34100, 10.00 12.30

lO.92345 12.5 346 12.6 346 12.5 346 12.5 344 12.5 345 12.5 344 12.5 344 12.5 345 12.5 347 12.5 346 12.5 345 12.5 345 12.5 346 12.5 344 12.5 344 12.5 343 12.5 346 12.5 344 12.5 345 12.5 345 12.5 344 12.5 345 12.5 344 12.4 343 12.5 343 12.5 347 12.5 345 12.5 343 12.5, ':-'-,," ) 

### Oai%) , 

## ,COusPm) 10.00 12.40 10.00 12.30 11.00 12.40 10.00 12.30 11.00 12.40 11.00 12.30 11.00 12.30 10.00 12.30 11.00 12.30 10.00 12.30 11.00 12.30 10.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 10.00 12.30 11.00 12.30 10.00 12.30 11.00 12.30 11.00 12.30 11.00 12.30 10.00 12.30 11.00 12.30 10.00 12.30 11.00 12.30 10.00 12.30 11.00 12.30 10.00 12.30 11.00 12.30 10.00 12.30 11.00 12.30 10.00 12.30 11.00 12.30 10.00 12.30 11.00 12.30 10.00 12.30 11.00 12.30 10.00 12.30 11.00 12.30 10.00 12.30 11.00 12.30 10.00 12.30 10.00 12.30 10.00 12.30 10.00 12.30 10.00 12.30 11.00 12.30 10.00 12.30 11.00 12.30 10.00 12.30 10.00 12.30 10.00 12.30 10.00 12.30 10.00 12.30 10.00 12.30 10.00 12.30 10.00 12.30 10.00 12.30 10.00 12.30 10.00 12.30 10.00 12.30 10.00 12.30780.00 2.70 

## >,e;::,"11?Jiiiiws

# m1li'**.~'** 4362.00GAS COMPOSITION (Based onEPA standard conditions of 14.696 psia and 68 f Constituent MokFraction

. MW welahtedMW

NITROGEN 

### 0.3573 28.0134 10.0082 CARBON DIOX. 

### 0.6797 44.01 29.9139 METHANE 

### 96.9378 16.04315 1555.1882

ETHANE 

### 1.6228 30.0703 48.7972 PROPANE 

### 0.2158 44.0975 9.5159 I-BUTANE 

### 0.0486 58.1246 2.8258 N-BUTANE 

### 0.0531 58.1246 3.0837 I-PENTANE 

### 0.0229 72.1518 1.6487 N-PENTANE 

### 0.0149 72.1518 1.0772 

### HEXANE 

### + 0.016136 95.958 1.5484 99.9690 MW 

### 1663.6073
Upper Dry 

### Heat Value btu/dscf MoleWeight

Low Dry 

### Heat Value btu/dscf EPA F-Factor (calc) SpecHic GravHy 

### -2.8710 Density 

### 4.4147 Ib/scf

C+Hl4 

### 201.7676



### Total Carbons 101.5344 

### Total H 400.9327

### ORIFICE FLOW CALCULATIONS Run Number 1 2 

### 3 Supply Pressure (PSIG) 0.00 0.00 0.00 Differential (-H2O 0.00 0.00 0.00 Temperature (OF 0.00 0.00 0.00 Fuel Flow scfh) Fuel Flow scfm) IVALUEI IVALUEI IVALUEI PIPE 1.0. 0.00 0.00 0.00 ORIFICE 1.0. 0.00 0.00 0.00 PRESS TAP? (1-UP,2-DN) 0.00 0.00 0.00 SP. GRAVITY

.. 2.87 -2.87 -2.87 BETA IDIV/oI IDIVIOI IDIVIOI K IDIV/o! IDIV/OI IDIV/oI K1 IDIVIOI IDIVIOI IDIV/oI Be IDIV/oI IDIV/o! IDIVIOI 

### E ,DIVIOI 'DIVIOI 'DIVIO! 

### kflana WIVIO! 'DIVlC! 'DIVIO! Ko IDIVlO! IDIVlO! IDIV/o! Fb IDIVlO! IDIVIOI 'DIVlO! BB IDIV/o! IDIVlO! IDIVIOI Fr IDIVIO! IDIVlO! IDIVlOl Fpb 1.00 1.00 1.00 Ftb 1.00 1.00 1.00 Ftf 1.06 

### 1.06 1.06 FG #NUM! INUMI INUM! Fpv 1.00 1.00 1.00 A IDIV/ol IDIVlO! IDIV/OI QV 'DIVIOI IDIVlOI IDIVlO! C IDI

### VIa! IDIVlOI IDIVlO! Qfh Qfm IVALUEI IVALUEI flVALUEI K1 for BETA < 0.5 IDIV/OI #DIVIOI #DIV/o1 K1 for BETA > 0.7 flOIV/O! IDIVIOI IDIV/OI QV (DOWNSTREAM TAP) 'DIVlO! IDIVIOI IDIVIOI Atm. Press for cales (psia) 0.00 0.00 0.00DENSITY 0.07433 0.11677 0.04256 0.07978 0.11700 0.15422 0.15422 0.19144 0.19144 0.32146 Carbon Wt. %: 0.737980 Hydrogen Wt. %: 0.242930

Oxygen Wt. 

### %: 0.013074 Nitrogen Wt. %: 0.006016 

### 1.0000

1663.6073 btu/dscf**--~'V~A~l~U=E::;"1**--dscfIMMbtu

HHVideal

1010 1769.6 2516.1 3251.9 3262.3 

### 4000.9 4008.9

5278

b(i) 0.001571962 0.013390228 1.124478886 0.038784203 0.007423245 0.002226659 0.002535933 0.001327643 0.000942083 0.001294107 1.193974949 HHVCil ideal 0 0 97907.21335 2871.653792 542.9542512 158.0976223 173.0748019 91.4245659 59.852877 85.165808 HHVreal

Compressibility -19.9987371 HHVCi} real 0 0 -4895.67 -143.59 -27.15 -7.91 -8.65 -4.57 -2.99 -4.26 -5094.792 gtbhp-hr Ib/hr ppm 2 Calculated Panel Heat Rate Curve

# ..