. liAR &. 6 2006' 

Georgia Department of Natural Resources 

Environmental Protection Division. Air Protection Branch 

4244 International Parkway. Suite 120 • AUanta • Georgia 30354 

404/363-7000. Fax: 404/363-7100 

Noel Holcomb. Commissioner 

Carol A Couch, Ph.D., Director .r 

MeMORANDUM: . 

TO: . Karen Hays tii;) 

THftOUGH: Ross Winne, Dehnna Oser ~ 

FROM: Dave Sheffield lJ <; P 

SUBJECT: SOURCE TEST REPORT REVIEW 

The following test hll\s been reviewed and was conqucted in an acceptable fashion for the purpose intended . .. 

COMPANY NAME Southern Natural Gas-Wrens Compressor Station 

COMPANY LOCATION Wrens.GA 

SOURCE .·TESTED RICEMACT .....-- C/)/)5 

POLLUTANT DETERMINED Carbon Monoxide 

REPORT ,gEVIEWED BY Dave Sheffield 

TEST WITNESSED BY Dave Sheffield 

DATE(S) OF TEST December 19.2007 

DATE RECEIVED BY APB February 7. 2008 

MAXIMUM EXPECTED 3530 Horsepower 

OPERATING CAPACITY 

OPERATING CAPACITY 3294.33 Horsepower 

ALLOWABLE EMISSION RATE 93% ORE 

APPLICABLE REGULATION 40 CFR Part 60 Subpart ZZZZ - RICE MACT; Permit 4922-163-0028-V-02-2 

CONTROL EQUIPMENT During the tests, the average catalyst bed inlet temperature was 784.33 degrees F. 

AND MONITORING DATA and the average pressure drop across the bed was 3.23". Engine monitoring data 

during the tests, as per permit condition 5.2.4, was average RPM of 998.67, 

averagesuctiQn pressure of63.67 psig, and average discharge pressure of 1092.67 

psig. . 

TEST RUN # 1A 1B 1C AVERAGE 

GAS TEMPERATURE Inlet to C 

(OA Outletfrc 

GAS MOISTURE Inlet to C ,. 

(%) Outlet fr{ 

GAS FLOW RATE Inlet to C 

(ACFM) Outlet fr< 

GAS FLOW RATE Inlet to C 

(DSCFM) Outlet fre: 

POLLUTANT 

CONCENTRATION 

Inlet to C 253.20 251.58 246.84 250.54 

(PPM @ 15% 02) Outlet fre 13.63 13.37 13.30 13.43 

EMISSION RATE Inlet to C 0 

(N/A) Outlet fr( 

DESTRUCTION . 94.638 

EFFICIENCY (%) 

OTHER INFORMATION 

cc: Ross Winne 

Reference Number: 200800187 

The RICE MACT requires that the catalyst bed percent reduction be tested by 

measuring the carbon monoxide concentratin before and after the bed. 

Consequently, the air flow was not measured. The minumum reduction is 93 

percent. 

AIRS Number: 16300028 

Printed: 3/3/2008 
TEST ~EP()RT TRANSMISSION SUMMARY 

(Submit separate summary sbeet for each pollutant test report) 

Submit to: ISMP Database 

, Ross Winne, Program Manager 

Industrial Source Monitoring Program 

42441ntemational Parkway. Suite 120 

Atlanta, GA 30354 

Wrens Compressor Station 

.... .f~.i!. ~!!~}!l..1! ~~!'!-:h. !l:s .. e.l}~1y J. ....... 

No. ;( 00 ¥ 0 Ii I ~ 7= 

Facility Name: ---------------------------------

Highway 17 North 

Facility Address: 

Wrens 

("Iy 

30833 

. Facility Contact~: ~R=an.:.::d:.i..y.:.;B.:.;ut:..::;;ts:..._ __________ _ Phone No. 706-547-2135 

PART A 

Emission Point (one only): Emission Unit C005 / Oxidation Catalyst 

Carbon Monoxide (CO) Reduction 12119/07 

Pollutant (one only): Date test performed,;...: ____ _ 

Applicable Rule(s). Rcgularion(s) or Permit Conditions: permit # 4922-163-002&-V.Q~-O Condition 4.? 2 (Anpual) 

(Indicate Permit # and Condition #'s) 

Maximum expected Qperating capacity:. 100% load. plus or minus 10010 ~----~~-------------~--~-------

Avcrage load fur 3 runs - 93.32% (see data summary page) 

Operating capacity during test: 

Computed allowable emission ratc(s) or limitation(s): Reduction QfCarbon Mqnoxide {COl by 93% or mQre 

(Determined for each applicable rule. regulation or perrni( condition using same units) 

Reported emissions to atmosphere: % reduction across the catalyst for the average of3 runs equals 94.64% (st!t! data 

summary page) 

(In same units as rule. regulation or permit condition) 

The test report sbould include a compilation of all CEMS data, confroldevise parameters and 

process operating data related to the test. 

PARTB 

For aoy facility operating under a Part 70 Permit, Condition 8.8.3 of that permit requires the 

following certification should be signed. by a responsible official and included with the report: 

li,. 

I certify that based on my informati~' and belief formed after reasonable inquiry, the statements 

and infonri,pon in this report are true, accurate, and complete. 

~s t!L~ ~d ~r.oIY/ko(/~ 3-:5-(8 

NAME SIGNATURE TITLE DATE 

Rev. 05130106 
RECEIVED 

February 6,2008 

Mr. James Eason AIR PROTECTION BRANCH 

Stationary Source Unit Manager 

Georgia Environmental Protection Division 

4244 International Parkway 

Suite 120 

Atlanta, Georgia 30354 

Re: Southern Natural Gas Company 

Wrens Compressor Station, Jefferson County 

Title V Permit No. 4922-163-0028-V-02-0 

Annual RICE MACT Compliance Test Results 

Dear Mr. Eason: 

A/southern e Natural Gas P an EI Paao company 

Attached are tables of results of the Annual RICE MACT testing at Wrens Compressor Station. CO tests 

were performed on-site December 19, 2007, using a portable analyzer for Emission. Unit C005 

(Compressor Engine No.5). 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. 

If you have any questions, please contact Mr. Wayne Parrott at 478-477-1221 ext 2024. 

ve;;;AL 

Thomas C. Dender 

Director. Southeast Division 

EWPbg 

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.: 1Z 334 569 02 94274888 

Southern Natural Gas 

1900 5~ Avenue Birmingham. Alabama 35203 

PO Box 2563 Birmingham. Alabama 35202.2563 
Emission Unit COOS (Compressor Engine No.5) 

Wrens Compressor Station 

Permit No. 4922-163-o028-V-02-o 

Date Tested: December 19, 2007 

CO Results CO Permit 

Limit 

Percent Reduction Across 

the Catalyst 

Run #1 94.62 

Run #2 94.69 

Run #3 94.61 >=93.00% 

Average 94.64 








INSTRt.renIONS 

• NO .. N02 ..... __ to bit calibrated prior to8latt or W&1IflC8llon dala collection. 

• I'rooIdIne- hlllOI1caI __ nat .""'1 allowing the. __ or W&1IflC8lfon, lind prior 1O"'11Ing theflnlt _ nm •• lIInIIlflcaUon __ or the UIlauoIINck _ be complated. Data must be 00I1ected at 

IOcallons or lG.7'l1., 5O%..nd 83.3% or the .....-_I_to ""ow lllatlhe .... _ COII_ba\lon. do not ""IY by m_1hen n.. To 4ICCOft1I)I1aI> Ill", In_ \he _ pralle InlOthe ....... UIII_at theflnlt 1rI_ poInl ond .... 11 tor\he .... dln"" 10 _1IIze (at_two limes the _lime _Ined on the cal Etror lab). CoIlacI_ (CO, NO, N02, lind 02) for. period or 5 mlnlJlea.nd --" on _ form. .... peal \he proceao oboII8lorlhe _ two Ira_ poinlS. 11_""" taUs _ S%.1hen _ \eot ...... con be umpled at elllngle till poInL • not, ..... _ run mUll! be umpied at \he _1rI_ pointe Rated oboII8. 



'. 

·'<CO<RRm "' •• <~~;' 

21.00 11.80 11.80 

21.00 11.80 19.00 11.70 

21.00 11.80 20.00 11.80 

22.00 11.80 20.00 11.80 

21.00 11.80 21.00 11.80 

22.00 11.80 21.00 11.80 

21.00 11.80 21.00 11.80 

21.00 11.80 21.00 11.80 

22.00 11.80 21.00 l'.S0 

22.00 11.80 21.00 11.80 

22.00 11.80 21.00 11.80 

22.00 11.80 20.00 11.80 

21.00 11.80 20.00 11.80 

21.00 11.80 20.00 11..8 

21.00 11.80 20.00 11.80 

21.00 11.80 20.00 11.80 

21.00 11.70 20.00 11.80 

20.00 l'.S0 20.00 11.80 

20.00 11.80 21.00 11.80 

21.00 11.80 21.00 11.80 

21.00 11.80 21.00 11.80 

20.00 11.70 21.00 11.70 

20.00 11.70 20.00 11.80 

20.00 11.80 20.00 11.80 

20.00 11.80 21.00 11.80 

20.00 11.80 21.00 11.80 

20.00 11.70 21.00 11.80 

20.00 11.70 20.00 11.70 

20.00 11.80 21.00 11.70 

20.00 11.80 21.00 11.80 

19.00 11.90 21.00 11.80 
391 11.6 

389 11.7 

389 11.7 

388 11.7 

388 11.7 

391 11.7 

391 11.7 

387 11.7 

389 11.7 

388 11.7 

391 11.7 

392 11.7 

389 11.7 

389 11.7 

386 11.7 

387 11.7 

385 11.6 

389 11.7 

387 11.7 

387 11.7 

386 11.7 

384 11.7 

386 11.7 

387 11.7 

386 11.8 

388 11.6 

387 11.7 

389 11.7 

385 11.7 
;·CA~) ,;.·'OiC;:i:", ';t~l" 

21.00 11.70 r," c, 

21.00 11.70 

21.00 11.70 I>: .. ...... 21.00 11.70 ~;:' 

'. 21.00 11.70 

21.00 11.70 t'. 

21.00 11.70 

21.00 11.70 [, 

: 20.00 11.70 i; 

., 21.00 11.70 ti, 

21.00 11.70 

L 21.00 11.70 '''~, . '}-

" 21.00 11.70 " ,,,-, ~,:, 

21.00 11.70 ,-,~ .{';:, 

21.00 11.70 " ',-;'-

.... ,. 21.00 11.70 r 

· 21.00 11.70 ,;",c" 

• 21.00 11.70 t·,. 

21.00 11.70 

· 

21.00 11.70 '; 

21.00 11.70 . , 21.00 11.70 ~,~~' ;;!' . 20.00 11.70 

20.00 11.70 f"~ 

, 

21.00 11.70 , ,~-,,-: ,,~.~ 20.00 11.70 

" 

21.00 11.70 

.... 20.00 11.70 fc ••••• 21.00 11.70 ',> 

~",. , 21.00 11.70 

.... 21.00 11.70 ~"";:; 

Y./· . .• ".' ":' 

GAS COMPOSITION IBased onEPA standard conditions of 14.696 osia and 68 F 

Constituent 1< ·Mol~flacttont 1M welahtedMW 

NITROGEN 0.3714 28.0134 10.4042 

CARBON DIOX. 0.6739 44.01 29.6583 

METHANE 97.0638 16.04315 1557.2091 .. 

ETHANE 1.5348 30.0703 46.1519 

PROPANE 0.1844 44.0975 8.1316 

I-BUTANE 0.0432 58.1246 2.5110 

N-BUTANE 0.0489 58.1246 2.8423 

I-PENTANE .. 0.0214 72.1518 1.5440 

N·PENTANE 0.0144 72.1518 1.0390 

HEXANE + 0.0438 95.958 4.2030 

100.0000 MW 1663.6944 

Upper Dry Heat Value btu/dscf Mole Weight 

Low Dry Heat Value btu/dscf EPA F·Factor (calc) 

Specific GravIty -2.8717 

Density 4.4168 Ib/scf 

C+Hl4 201.7683 

Total Carbons 101.5273 Total H 400.9639 
ORIFICE FLOW CALCULAnONS 

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 seth) 

Fuel Flow setm) #VALUE! #VALUEI #VALUE! 

PIPE 1.0. 0.00 0.00 0.00 

ORIFICE 1.0. 0.00 0.00 0.00 

PRESS TAP? (1-UP 2-0N) 0.00 0.00 0.00 

SP. GRAVITY -2.87 -2.87 -2.81 

BETA #OIVIOI #OIVlOI #OIVlOI 

K #OIVlO!· #OtVIOI #OIVIOI 

K1 #OIVlOI #OIVlOI #OlVIO! 

Be #OIVlOI #OIVIOI #OIVlOI 

E #OIVIOI #OIVIO! #OIVlOI 

kflanQ #OIVIO! #OIVlO! #OIVIOI 

Ko #OIVlO! #OIVIO! #OIVlO! 

Fb #OIVlOI #OIVlOI 1I0lVlOI 

BS #OIViOI #OIViOI #OIViOI 

Fr #OIViOI #OIVIOI 10lVIOI 

Fpb 1.00 1.00 1.00 

Ftb 1.00 1.00 1.00 

Ftf 1.06 1.06 1.06 

FG #NUMI #NUM! #NUMI 

Fpv 1.00 1.00 1.00 

R #OIViOl 10lVIOI 10lVIOI 

QY #lOIVlOI #OIVIOI #DIVIOI 

C #OIVIOI #OIVlO! #OIVIOI 

Qfh 

Qfm #VALUEI #VALUEI #VALUE! 

K1 for BETA < 0.5 #OIVlOI #tOIVlO! #OIV/O! 

K1 for BETA> 0.1 #OIViOI #OIVlOI #DIVlOl 

QY (DOWNSTREAM TAP) #OIViOI #tOIViOI #OIVlOI 

Atm. Press for cales (psia) 0.00 0.00 0.00 
DENSITY 

0.07433 

0.11677 

0.04256 

0.07978 

0.11700 

0.15422 

0.15422 

0.19144 

0.19144 

0.32146 

Carbon Wt. %; 0.737848 

Hydrogen Wt. %: 0.242936 

Oxygen Wt. %: 0.012962 

Nitrogen wt. %: 0.006254 

1.0000 

1663.6944 btu/dscf ---#~V"":"AL~UE~I --dscfIMMbtu 

HHVideal 

1010 

1769.6 

2516.1 

3251.9 

3262.3 

4000.9 

4008.9 

5278 

b(i) 

0.00163416 

0.01327583 

1.12594008 

0.03668172 

0.00634336 

0.00197856 

0.00233742 

0.00124334 

0.00090864 

0.00351276 

1.19385587 

HHV(i) ideal 

0 

0 

98034.438 

2715.98208 

463.96884 

140.48208 

159.52647 

85.61926 

57.72816 

231.1764 

HHVreal 

Compressibility 

-19.99454878 

~ 0 

-4903.06 

-135.84 

-23.20 

-7.03 

-7.98 

-4.28 

-2.89 

-11.56 

-5095.83 
2 glbhp-hr 

Iblhr 

ppm 

2 Calculated 

Panel 

Heat Rate Curve 
782.30 

782.40 

782.40 

782.40 

782.40 

782.50 

782.50 

782.50 

782.50 

785.90 

785.90 

786.00 

786.00 

786.00 

786.00 

786.00 

786.00 

786.00 


i>