f 

t~	 (?~--rJ

"'. . "'C- __ :.-.'.:, to, •

~~~~;............. -':.:_,-

:. IIt.-.l ..-.. ~..~.. ;". .. '" ..
 [j ",--J vet, ''--' t;-:· '-,I. ,0 ' !
 

DEPARTMENT-of ENVIRONMENTAL QUALITY 

DIVISION OF AIR QUALITY 

Michael O. Leavitt ! 

GovclMl' 5 150 North 1950 Wcs: Reply to: State of ULah 

DialUlc R. Nielson, Ph.D. S.lt Lake City, UWl 84114 Division of Air Quality 

~Dit=or " (801) 536-4000 P.O. Box 144820 

RusseU A. Robens (801) 536-4099 Fax Salt Lake City; UWl 84\14-4820 

Dftelcr (801) 5364414 T.D.D. 

DAQE-0063-94 

February 3, 1994 

.Gene Marshall
 

Pacificorp
 

1407 West North Temple
 

Salt Lake City, Utah 84140
 

Re:	 Approval Order For SIP Change
 

Salt Lake County CDS A1 NA Title V Major
 

Dear Mr. Marshall: 

The attached document is an Approval Order for the above referenced project. 

Please direct .any technical questions you may have on this project to Mr. Tim Blanchard. He may be 

reached at (801) 536-4057. 

'.: 

/:~;:-7fJl0/! I / 1/ I t

/	 ./ / / ;; , /. ( , v v . '/ "j 

......'RUssell A. Roberts, E:x.ecutlve Secretary
 

Utah Air Quality Board
 

RAR:JTB:dn 

cc:	 Salt Lake City/County Health Depanment
 

EPA Region VIII, Mike Owens
 

-


Vol1 1.2.e-2 
STATE OF UTAH
 

Department..of Environmental Quality
 

Division ·of Air Quality
 

APPROVAL ORDER FOR GADSBY UNITS 1, 2,· AND 3
 

SIP CHANGES
 

Tim Blanchard, Engineer
 

APPROVAL ORDER NUMBER
 

DAQE-0063-94
 

Date: February 3, 1994
 

Source
 

PACIFICORP
 

Russell A. Roberts
 

Executive Secretary
 Voll 1.2.e-3 Utah Air Quality Board 
DAQE~063

Page 2 

Abstract 

utah Power will upgrade the Gadsby Units No.1 and No.2 to bring them into compliance with 

Section IX.H.2.b.BBB for Utah Power and ·Light in the State Implementation Plan (SIP) for Salt 

Lake County. The SIP requires that the Gadsby Plant be retrofited with new burners that meet 

Reasonable Available Control Technology (RAC1). 

The above-referenced project has been evaluat~ and found to be consistent with the requirements of the 

Utah Air Conservation Rules (UACR) and the Utah Air Conservation Act. A 30-day public comment 

period was held and all comments received were evaluated. The conditions of this Approval Order (AO) 

reflect any changes to the proposed conditions which resulted from the evaluation of the comments 

received. This air quality AO authorizes the project with the following conditions, and failure to comply 

with any of the conditions may constitute a violation of this onter. 

General Conditions: 

1.	 This AO applies to the following company: 

Utah Power
 

Division of Pacificorp
 

Electric Operations
 

1407 West North Temple
 

Salt Lake City, Utah 84140
 

Phone Number (801) 220-2235
 

FAX Number (801) 220-4307
 

The equipment listed below in this AO shall be operated at the following location: 

Gadsby Plant
 

1359 West North Temple
 

Salt Lake City, utah
 

Universal Transverse Mercator (UTM) Coordinate System: 

4,513.250 meters Northing, 421.650 meters Easting 

2.	 Definitions of terms, abbreviations, and references used in this AO conform to those used 

in the UACR, Utah Administrative Codes (UAC), State Implementation Plan (SIP) and 

Series 40 of the Code of Federal Regulations (40 CFR). 

These definitions take precedence unless specifically defined otherwise herein. 

3.	 .Utah Power shall operate the Gadsby Power Station according to the information 

submitted in the Notice of Intem datejAugust 17, 1993, with addi[ionaJ information 

submitted November l, 1993. 

4.	 Regardless of any inconsistency between conditions of this AO and Section 

IX.H.2.b.BBB of the SIP for Utah Power and Light, this AO shall take precedence as 

provided by R307-1-3.2.4, VA-C. Voll 1.2.e-4 
DAQE~3

Page 3 

5.	 A copy of this AO shall be posted on site. The AO shall be available to the employees 

who operate the air emission producing equipment. These employees shall receive 

instruction as to their responsibilities in operating the equipment according to all of the 

relevant conditions listed below. 

6.	 The approved installations shall consist of the following equipment: 

A.	 Gadsby I - Replace the existing six burners with six new Todd Combustion, 

Inc. 1 Low-NO" burners on the existing front fired boiler. 

B.	 Gadsby 2 - Replace the existing six burners with six new Todd Combustion, Inc. 1 . 

Low-NO. burners on the existing front fired boiler. . 

Limitations and Tests Procedures 

7.	 Emissions to the atmosphere from L1e indicated emission point shall not exceed the 

.following rates and concentrations: 

A.	 Gadsby 1
 

Pollutant ppmdv
 

(3% Oh drY) 

NOx 179.00 336 

B.	 Gadsby 2 

Pollutant	 ppmdv 

(3% 0,. drY) 

204.00 336 

c.	 Gadsby 3 

a.	 Winter 

November 1 through February 28: 

Pollutant ppmdv 

(3% 0" drvl 

NOx [42.00 168 

Voll	 1.2.9-5 

I _ Or equivalent with equivalency determined by the Executive Secretary 
DAQE-D063 

Page 4 

b.	 Summer 

March Ithrough October 31: 

Pollutant ppmdv 

(3% 0," drv) 

NOx 203.00 168 

8.	 Stack testing to show compliance with the emission limitations stated in the above 

condition shall be performed as specified below: 

A.	 Emission Point Pollutant ~Testing Test 

Status Frequencv 

Gadsby 1 NO. * ** 

Gadsby 2 NO. * ** 

Gadsby 3 NO. * ** 

B.	 Testing Status ao be appl ied above -" 

*	 Initial"compliance testing is required. The initial test date shall be within 

180 days after the start-up of the unit. 

**	 Test every two (2) years after the initial testing. 

C.	 Notification 

The applicant shall provide a notification of the test date at least 45 days before 

the test. A pretest conference shall be held if directed by the E~utive

Secretary. It shall be held at least 30 days before the test between the 

owner/operator, the tester; and t1:le Executive Secretary. 

The emission point shall be designed to conform to the requirements of 40 CFR 

60, Appendix A, Method 1, and Occupational Safety and Health Administration 

(OSHA) or Mine Safety and Health Administration (MSHA) approvable access 

shall be provided to the test location. 

D.	 Samole LOC3JioTI
 

40 CFR 60. Appendix A, Method I
 

E.	 Volumetric Flow Rate
 

40 CFR 60, Appendix A, Method 2
 Vol1	 1.2.e-6 
DAQE-0063 

Page 5 

F.	 Nitrogen Oxides (NO.1 

40 CFR 60, Appendix A, Method 7, 7A, 78, 7C, 7D or 7E 

G.	 Calculations 

To determine mass emission rates (lbslhr, etc.), the pollutant concentration as 

determined by the appropriate methods above, shall be multiplied by the 

volumetric flow rate and any necessary conversion factors detennined by the 

Executive Secretary to give the results in the specified units of the emission 

limitation. 

H.	 Ex.isting Source Operation 

a.	 Gadsby I 

For an ex.isting source/emission point, the production rate during all 

compliance testing shall be no less than 90% of the input heat capacity 

(653 MMBTU/HR). . 

b.	 Gadsby 2 

For an existing source/emission point, the production rate during all 

compliance testing shall be no less than 90% of the input heat capacity 

(742 MMBTUIHR). 

c.	 Gadsby 3 

For a emission point, the production rate during compliance testing for 

the summer-time emissionlimitatioDS shall be preformed at no less than 

90% of the input heat capacity (1,040 MMBTUIHR), The production 

. rate during compliance testing for the winter-time emission limitation 

shall be no less .than 90% of the heat input rate correlating to 70% 

capacity factor used to calculate the winter-time emission rates (730 

MMBTU/HR). 

9.	 Visible emissions from the Gadsby stacks shall not exceed 10% opacity. Opacity 

observations of emissions from stationary sources shall be conducted in accordance with 

40 CFR 60, Appendix A, Method 9. 

10.	 . The owner/operator shall use only natural gas as a primary fuel and No.2 fuel oil or 

better as back-up fuel in the boilers. If any other fuel is to be used an AO shall be 

required in accordance with R307-l-3.1, UAC. The No.2 fuel oil may be used only 

during periods of natural gas cunailmem and for maintenance frrings. Maintenance ­

firings shall not exceed. one-percent of the annual plant 8TU requirement. In addition, -­

maintenance firings shall be scheduled between April 1 and November 30 of any calendar > 

year. Records of fuel oil use shall be kept which shows the date the fuel oil was fired, 

the duration in hours the fuel oil was fired, the amount of fuel oil consumed during each 

0 
DAQE-0063 

Page 6 

curtailment, and the reason for each tiring. Records shall be made available to the 

Executive Secretary or his representative upon request, and shall include a period of two 

years ending with the date of the request. 

11.	 The sulfur content of any fuel burned shall not exceed 0.45% by weight as determined 

by ASTM Method D-4294-89 or approved equivalent. The sulfur content shall be tested 

if directed by the Executive Secretary. 

Records & Miscellaneous 

12.	 The Executive Secretary shall be notified in writing upon start-up of the installation as 

an initial compliance inspection is required. Eighteen months from the date of this AO 

the Executive Secretary shall be notified irx writing of the status of installation if 

installation is not completed. At that time the Executive Secretary shall require' 

documentation of the continuous installation of the operation and may revoke the AO in 

accordance with R307-1-3.1.5, UAC. If construction is complete and operation has 

commenced a notice is not required. 

13.	 All records referenced in this AO which are required to be kept by the owner/operator 

shall be made available to the Executive Secretary or his representative upon request. 

Examples of records to be kept at this source shall include the following as applicable: 

A.	 Fuel oil consumption (Condition 10) 

B.	 Maintenance records (Condition 10) 

C.	 Upset, breakdown episodes (Condition 16) 

D.	 Emergency plan (Condition 17) 

14.	 All installations and facilities authorized by this AO shall be adequately and properly 

maintained. All pollution comrol vendor recommended equipment shall be installed, 

maintained, and operated. Instructions from the vendor or established. maintenance 

practices that maximize pollution control shall be used. All necessary equipment control 

and operating devices such as pressure gauges, amp meters, volt meters, flOw.rate 

indicators, temperature gauges, CEMs, etc., shall be installed and operated. properly and 

easily accessible to compliance inspectors. A copy of all manufacturers' operating 

instruction for pollution control equipment and pollution emitting equipment shall be kept 

on site. These instructions shall be available to all employees who operate the 

equipment, and shall be made available to compliance inspectors upon their request. 

15.	 The ownerfoperator shall comply with R307-1-3.5, UAC. This rule addresses emission 

inventory reponing requirements. 

16.	 The owner/operator shall comply with R307 -1-4. 7, UAC. This rule addresses 

unavoidable breakdown reponing reqUirements. The ownerfoperator shall 

calculatelestimate the excess emissions whenever a breakdo\vn occurs. The total of co

excess	 emissions shall be reponed to the Executive Secretary as directed for each , 

- calendar year.	 c"! --. 

17. The ownerfoperator shall submit to the Executive Secretarv an emergency Dian within 60 -'0 

days of the date of th is AG. The plan shall identify what control measures the >

owner/operator shall implement when an emergency episode is declared by the Executive 
DAQE-0063 

Page 7 

Director of the Depanment of Environmental Quality. Specific emisSion reduction 

.measures shall be outlined for all three levels (Alert, Warning, Emergency). The values 

for the various levels are listed in R307-1-5, UAC. Also see 40 CFR, Part 51, Subpart 

H (40 CFR 51.150 to 153) and appendix L. The emergency plan shall be approved by . 

the Executive Secretary. The Alert.Level actions.to be taken should be curtailment of 

all unnecessary activities causing air pollution. The other two levels of actions should 

be a progressive curtailment of production and activities causing pollution, to the point 

of complete shutdown of operations. 

Any future modifications to the equipment approved by this order must also be approved in accordance 

with R307-1-3.1.1, UAC. 

This AO in no way releases the owner or operator from altY liability for compliance with all other 

applicable federal, state, and local regulations including the UACR. 

Annual emissions for this source, the Gadsby power station, are currently calculated at the following 

values: 

Pollutant Tons/vr 

Paniculate 63.15
 

PM10 61.31
 

SO:2 67.73
 

NO. 2511.58
 

CO 458.61
 

VOC nonrnethane 16.55
 

These calculations are for the purposes of determining the applicability of Prevention of Significant 

Deterioration and nonattainment area major source requirements of the UACR. . 

In accordance with the requirements of Title V of the 1990 Clean Air Act, the following pollutants may 

be subject to an operating permit fee. Both the fee rate and the class of pollutants are subject to "t:hange 

by state, the federal agencies, or both. 

Pollutant Tons/vr 

PM10 61.31
 

SO. 67.73
 

NO. 2511.58
 

CO 458.61
 

VOC nonmethane 16.55
 

KZ1f1J7/l Vol \ , .2.e-9 

\g!J~1l A. Roberts, Executive Secretary 

Division of Air Quality