## State of Utah

GARY R. HERBERT

Governor

GREG BELL

Lieutenant Governor 

### Department of Environmental Quality

Amanda Smith

Executive Director

DIVISION OF AIR QUALITY Cheryl Heying

Director

DAQE-AN0104230012-10

December 1, 2010

Gerry Gunning Interstate Brick Company

9780 South 5200 West West Jordan, UT 84081-5625

Dear Mr. Gunning:

Re: Approval Order: Modification to the Primary Crusher Emission Limit in Approval Order DAQEAN0104230008-08 Project Number: N010423-0012

The attached document is the Approval Order for th e above-referenced project. Future correspondence on this Approval Order should include the engineer 's name as well as the DAQE number as shown on the upper right-hand corner of this letter. The project e ngineer for this action is Nando Meli Jr. , who may be reached at (801) 536-4052.

Sincerely,

M. Cheryl Heying, Executive Secretary Utah Air Quality Board

MCH:NM:sa

cc: Mike Owens Salt Lake Valley Health Department

195 North 1950 West • Salt Lake City, UT Mailing Address: P.O. Box 144820 • Salt Lake City, UT 84114-4820 Telephone (801) 536-4000 • Fax (801) 536-4099 • T.D.D. (801) 536-4414

www.deq.utah.gov
Printed on 100% recycled paper

## STATE OF UTAH

Department of Environmental Quality

Division of Air Quality

APPROVAL ORDER: Modificat ion to the Primary Crusher Emission Limit in Approval Order DAQE-AN0104230008-08

Prepared By: Nando Meli Jr., Engineer Phone: (801) 536-4052 Email: nmeli@utah.gov

APPROVAL ORDER NUMBER

DAQE-AN0104230012-10

Date: December 1, 2010



## Interstate Brick Company Brick Manufacturing Plant

Source Contact: Mr. Joseph Eck Phone: (801) 280-5215

M. Cheryl Heying Executive Secretary Utah Air Quality Board

## Abstract

Interstate Brick Company (ISB) operates a brick and tile manufacturing plant in West Jordan City, Salt Lake County, Utah. ISB has requested an increase in the PM 10 emissions limit on the Primary Crusher Baghouse (PCB). The facility operates under AO nu mber DAQE-AN0104230008-08 issued November 12, 2008, which was for the replacement of the prim ary crusher and baghouse. The old primary crusher had a 120 tons/hour maximum throughput limit and the re placement crusher is 100 tons/hour. The limits for the replacement baghouse remained the same as the previous limits (0.016 grains/dscf and 0.12 lb/hr). In March 2009 a stack test was performed on the P CB and the test result was above the limit for the baghouse. The replacement baghouse controls two add itional conveyor drop points and handles a higher airflow than the previous baghouse. ISB has requested an increase in their stack limit to adjust for the actual emissions from the baghouse.

ISB is a Title V major source and is subject to the requirements of the State Implementation Plan (SIP). This AO modification will not affect the existing SIP limits. Salt Lake County is a nonattainment area of the NAAQS for PM 10 , PM 2.5 , and SO 2 , and is a maintenance area for ozone. ISB is a minor HAP source and the MACT standards for brick manufacturers are not applicable. There are no NSPS or NESHAP standards that apply. The emission rate limit for th e PCB will be permitted at the actual rate measured in the March 2009 source test, plus 25% for process variab ility, resulting in a new limit of 0.20 lb/hour. ISB has removed the line #5 dryer and baghouse to offset th e increase. The potential to emit totals, in tons per year, will remain as follows: PM 10 /PM 2.5 = 200.2, NO

x = 121.1, SO 2 = 90.1, CO = 312.8, VOC = 166.1

and HAPs = 18.2.

This air quality AO authorizes the project with the foll owing conditions and failure to comply with any of the conditions may constitute a violation of this order. This AO is issued to, and applies to the following:

Name of Permittee:

Interstate Brick Company

9780 South 5200 West West Jordan, UT 84081-5625 Permitted Location:

Brick Manufacturing Plant

9780 S. 5200 W. West Jordan, UT 84081-5625

UTM coordinates: 413,500 m Easting, 4,491,500 m Northing, UTM Zone 12

SIC code: 3251 (Brick & Structural Clay Tile)



### Section I: GENERAL PROVISIONS

I.1 All definitions, terms, abbreviations, and refere nces used in this AO conform to those used in

the UAC R307 and 40 CFR. Unless noted otherw ise, references cited in these AO conditions refer to those rules. [R307-101]

I.2 The limits set forth in this AO shall not be exceeded without prior approval. [R307-401]

I.3 Modifications to the equipment or pro cesses approved by this AO that could affect the emissions covered by this AO must be reviewed and approved. [R307-401-1]

I.4 All records referenced in this AO or in other applicable rules, which are required to be kept by the owner/operator, shall be made available to the Executive Secretary or Executive Secretary's representative upon request, and the records shall include the two-year period prior to the date of the request. Unless otherwise specified in this AO or in other applicable state and federal rules, records shall be kept for a minimum of two (2) years. [R307-401-8]DAQE-AN0104230012-10 Page 3

I.5 At all times, including periods of startup, shutdown, and malfunction, owners and operators shall, to the extent practicable, maintain a nd operate any equipment approved under this AO, including associated air pollution control equipm ent, in a manner consistent with good air pollution control practice for minimizing emissions. Determination of whether acceptable operating and maintenance procedures are being u sed will be based on information available to the Executive Secretary which may include, but is not limited to, monitoring results, opacity observations, review of operating and maintenance procedures, and inspection of the source. All maintenance performed on equipment author ized by this AO shall be recorded. [R307-401-4]

I.6 The owner/operator shall comply with R307-1 50 Series. Inventories, Testing and Monitoring. [R307-150]

I.7 The owner/operator shall comply with UAC R307-107. General Requirements: Unavoidable Breakdowns. [R307-107]



### Section II: SPECIAL PROVISIONS

II.A The approved installations shall consist of the following equipment:

II.A.1 Brick and Tile Manufacturing Plant

The operation includes raw materials (clays) stor age, crushing/blending operations, and three natural gas-fired kilns used to fire the products.

II.A.2 Line #1

Tunnel Kiln #1

II.A.3 Line #3

A. Line #3 kiln with packed tower scrubber and mist eliminator Scrubber air flow - 60,000 Actual Cubic Feet per Minute (ACFM)

B. Line 3 baghouse - MikroPul

II.A.4 Line #4

A. Line #4 kiln

Wet scrubber and mist eliminator Scrubber air flow - 89,800 ACFM

B. Line #4 vacuum cleaner

C. Line #4 shapes dryer

D. Line #4 baghouse - MikroPulDAQE-AN0104230012-10 Page 4

II.A.5 Grizzly Hopper

II.A.6 Primary and Secondary Crushers

A. Primary crusher with baghouse

Crusher manufacturer - Stedman Crusher capacity rating - 100 ton per hour

Baghouse manufacturer - MikroPul Baghouse type - Pulse jet Filter media - 16 oz. Polyester felt or polytetrafluoroethylene (PTFE) membrane or equivalent

Maximum Air-to-Cloth ratio - 8:1 Minimum pressure drop for polyester felt - 2" water gage (w.g.) Minimum pressure drop for PTFE membrane- 0.4" w.g.

B. Secondary crusher/grinding

C. Screens

II.A.7 Silos

Two lime silos

II.A.8 Clay Storage Piles

II.A.9 Miscellaneous Diesel Equipment

II.A.10 Miscellaneous Equipment

Extruder Vacuum Pumps, Storage Tanks, Vehicle Fueling Tanks, Space Heaters. This equipment is listed for in formational purposes only.

II.B Requirements and Limitations

II.B.1 Limitations and Test Procedures

II.B.1.a The primary crusher building shall be cont rolled by the primary crusher baghouse at all times when the crushing process is being operated. A ll air from the crusher building shall be routed through the baghouse before being exhaus ted to the atmosphere. [R307-401-8]

II.B.1.b ISB shall not operate Kiln #1 until the replacement scrubber for Kiln #1 has been approved. [R307-401-8]

II.B.1.c All exhaust air from Kiln #3 shall be routed through the wet scrubber before being vented to the atmosphere. [R307-401-8]DAQE-AN0104230012-10 Page 5

II.B.1.d The Kiln #4 wet scrubber shall control pro cess streams from Kiln #4. All exhaust air from Kiln #4 shall be routed through the wet scrubbe r before being vented to the atmosphere. [R307-401-8]

II.B.1.e Emissions to the atmosphere from the indi cated emission point shall not exceed the following

rates and concentrations:

A. Scrubber Emissions - Tunnel Kiln #3:
Pollutant Limits

PM 10

(1-hr average) 24.0 lb/hr Annual average* 8.0 lb/hr

SO 2

1-hr average 12.0 lb/hr Annual average 6.0 lb/hr

NO

x

1-hr average 25.8 lb/hr Annual average 8.6 lb/hr

Fluorides

1-hr average 5.28 lb/hr Annual average 1.76 lb/hr

B. Scrubber Emissions - Tunnel Kiln #4:

Pollutant Limits

PM 10

1-hour average 38.13 lb/hr Annual average * 12.71 lb/hr

SO 2

1-hr average 18.0 lbs/hr Annual average 9.0 lbs/hr

NO

x

1-hr average 12.48 lbs/hr Annual average 4.16 lbs/hr

Fluorides

1-hr average 7.2 lbs/hr Annual average 2.4 lbs/hrDAQE-AN0104230012-10 Page 6

* PM 10 emission rates expressed as annual averages above for the scrubbers for Kilns #3, and #4 shall be demonstrated by a 3-hr stack test. Should PM 10 emissions test at a higher rate than the limits e xpressed above, ISB shall provide documentation which demonstrates that the limits are bei ng met, on an annual average basis, within 30 days of the date of the stack test. The method provided in the documentation shall be verifiable.

C. Line 3 Baghouse

Pollutant Limits

PM 10 0.16 lbs/hr 0.016 grains/dscf

D. Line 4 Baghouse

Pollutant Limits

PM 10 0.12 lbs/hr 0.016 grains/dscf

E. Primary Crusher Baghouse Vent

Pollutant Limits

PM 10 /PM 2.5 0.20 lbs/hr 0.010 grains/dscf. [R307-401-8]

II.B.1.f Stack testing to show compliance with th e emission limitations stated in the above condition (excluding annual average emission rates for SO 2 ) shall be performed as specified below:

Emission Point Pollutant Testing Test Status Frequency

Scrubber, Kiln #3

PM 10 ** @

SO 2 ** #

NO

x ** @

Fluorides ** @

Scrubber, Kiln #4

PM 10 ** @

SO 2 ** #

NO

x ** @

Fluorides ** @

Primary Crusher Baghouse

PM 10 *** @

Line 3 Baghouse

PM 10 * @

Line 4 Baghouse

PM 10 * @DAQE-AN0104230012-10 Page 7

Testing Status (To be applied above)

* Initial compliance testing has been performed.

** Initial compliance testing was performed on August 23-25, 2005. If the packing type and/or quantity of packing used in each scrubber is changed, then an initial compliance test shall be performed within 60 days of the change.

If the clay type and/or clay source is cha nged, then the initial compliance testing shall be performed within 60 days of the change.

*** A compliance test shall be performed as soon as possible and in no case later than 180 days after the date of this AO. The Executive Secretary shall be notified at least 30 days prior to conducting any testing. A source test protocol shall be submitted to DAQ when the testing notification is submitted to the Executive Secretary. If the filter media type used in the baghouse is changed, then an initial compliance test shall be performed within 60 days of the change.

The source test protocol shall be appr oved by the Executive Secretary prior to performing the test(s). The source test protocol shall outline the proposed test methodologies, stack to be tested, and procedures to be used. A pretest conference shall be held, if directed by the Executive Secretary.

@ Test every five years.

# Test required every year after initial compliance test. [R307-401-8]

A. Notification

The applicant shall provide a notification of the test date at least 30 days before the test. A pretest conference shall be held if directed by the Executive Secretary. It shall be held at least 15 days before the test between ISB, the tester, and the 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.

B. PM 10 emission limits shall use the following methods:

For stacks in which no liquid drops are pr esent, the following methods shall be used: 40 CFR 51, Appendix M, Methods 201 or 201a . The back half condensibles shall also be tested using the method specified by the Executive Secretary. All particulate captured shall be considered PM 10

.

For stacks in which liquid drops are present, methods to eliminate the liquid drops should be explored. If no reasonable met hod to eliminate the drops exists, then the following methods shall be used: 40 CFR 60, Appendix A, Method 5, 5a, 5d, or 5e as appropriate. The back half condensibl es shall also be tested using the method specified by the Executive Secretary. Th e portion of the front half of the catch

considered PM 10 shall be based on information in AP-42, Appendix C or other data acceptable to the Executive Secretary.DAQE-AN0104230012-10 Page 8

The back half condensibles shall not be used for compliance demonstration but shall be used for inventory purposes.

C. PM 2.5 emission limits shall use the following methods:

For stacks in which no liquid drops are pr esent, the following methods shall be used: 40 CFR 51, Appendix M, Methods 201a or other methods approved by the Executive Secretary. The back half condensibles shall also be tested using the method specified by the Executive Secretary. All particulate captured shall be considered

PM 2.5

.

The back half condensibles shall not be used for compliance demonstration but shall be used for inventory purposes.

D. SO 2

40 CFR 60, Appendix A, Method 6, 6A, 6B or 6C

E. NO

x

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

F. Fluorides (as Total Fluorides)

40 CFR 60, Appendix A, Method 13B

G. Volumetric Flow Rate

40 CFR 60, Appendix A, Method 2

H. Calculations

To determine mass emission rates (lbs/hr, etc.), the pollutant concentration as determined by the appropriate methods above shall be multiplied by the volumetric flow rate and any necessary conversion factors determined by the Executive Secretary to give the r esults in the specified units of the emission limitation. [R307-401-8]

I. New Source Operation

For a new source/emission point, the production rate during all compliance testing shall be no less than 90% of the producti on rate listed in this AO. If the maximum AO allowable production rate has not been achieved at the time of the test, the following procedure shall be followed:

1) Testing shall be at no less than 90% of the production rate achieved to date.

2) If the test is passed, the new maximum allowable production rate shall be

110% of the tested achieved rate. This new allowable maximum production rate shall remain in effect until successfully tested at a higher rate.DAQE-AN0104230012-10 Page 9

3) ISB shall request a higher production rate when necessary. Testing at no less than 90% of the higher rate shall be conducted. A new maximum production rate (110% of the new rate) will then be allowed if the test is successful. This process may be repeated until the maximum AO production rate is achieved.

J. Existing Source Operation

For a source/emission point, the production rate during compliance testing shall be no less than 90% of the maximum allowable production rate listed in this AO. If the maximum allowable production rate cannot be achieved at the time of the test, the following procedure shall be followed:

1) Testing shall be at no less than 90% of the anticipated annual production rate.

2) If the test demonstrates compliance with the limits listed in Condition II.B.1.e, the maximum allowable production rate shall be 110% of the rate achieved during the latest test.

3) If a higher production rate is necessar y, upon notification to the Executive Secretary, ISB may increase production to 110% of the highest tested rate that demonstrates complian ce with the limits listed in Condition II.B.1.e. [R307-401-8]

II.B.1.g Compliance with annual average lim itations listed in Condition II.B.1.e for SO 2 , and total fluorides (fluorides) shall be determined through a method of mass balance. If ISB submits any additional revised mass balance methods for determining annual emissions to the Executive Secretary for approval, the plan sh all include, at a minimum, the following:

A. Proposed test methods and test frequency fo r determining the weight of the elemental sulfur and fluorides contained in the clays used to manufacture brick

B. Proposed test methods and test frequency fo r determining the weight of the elemental sulfur and fluorides contained in the finished product

C. A method of determining scrubber efficiencies as an annual average

D. Calculation method of determining annual emissions of SO 2 and total fluorides which will demonstrate compliance with the a nnual average emission rate(s) listed in

Condition #II.B.1.e of this AO.

Calculations of SO 2 , and fluoride emissions shall be dete rmined on an annual basis. Annual

emission calculations of SO 2 and fluorides shall be submitted to the Executive Secretary by February 28th of the following year.

ISB shall determine the annual SO 2 and fluoride emissions using the most current approved mass balance plan. A copy of the mass bala nce plan that has been approved by DAQ is

attached to the NOI information submitted to DAQ on October 13, 2009.DAQE-AN0104230012-10 Page 10

ISB shall provide a notification of the scrubber effi ciency test date at least 30 days before the tests are performed for the mass balance plan. A pr etest conference shall be held if directed by the Executive Secretary. It shall be held at l east 15 days before the test and involve ISB, the tester, and the Executive Secretary or the Executive Secretary's designated representative. The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, and OSHA or MSHA approvable access sh all be provided to the test location. [R307-401-8]

II.B.1.h The following limitations shall not be exceeded:

A. Plant wide production/consumption limits

1) 2,880 tons raw clay consumption per 24-hours

2) 512,582 tons of brick produced per rolling 12-month period.

B. Tunnel Kiln #1 (Not operational until scrubber is online)

13.62 tons per hour averaged over a rolling 24-hour period

C. Tunnel Kiln #3

17.92 tons per hour averaged over a rolling 24-hour period

D. Tunnel Kiln #4

26.97 tons per hour averaged over a rolling 24-hour period

E. Clay Prep for Line 3 not Including Kiln # 3

6,240 hours of operation per rolling 12-month period

F. Clay Prep for Line 4 not Including Kiln # 4

6,240 hours of operation per rolling 12-month period

To determine compliance with a rolling 12-month total ISB shall calculate a new 12-month total by the twentieth day of each month using data from the previous 12 months. Records of consumption, production and or hours of operation sh all be kept for all periods when the plant is in operation. Production/consumption shall be determined by operator logs. The records of consumption/production shall be kept on a daily b asis. Hours of operation shall be determined by monitoring and maintaining an operations log. [R307-401-8]

II.B.1.i Visible emissions from the following emission points shall not exceed the following values:

A. All screens - 10% opacity

B. All conveyor transfer points - 10% opacity

C. All baghouses - 10% opacity

D. All buildings enclosing crushers - 10% opacityDAQE-AN0104230012-10 Page 11

E. All crushers - 15%

F. All other points - 20% opacity

Opacity observations of emissions from stationary sources shall be conducted according to 40 CFR 60, Appendix A, Method 9.

For sources that are subject to NSPS, opacity shall be determined by conducting observations in accordance with 40 CFR 60.11(b) and 40 CF R 60, Appendix A, Met hod 9. [R307-401-8]

II.B.1.j The moisture content of the clay shall be maintained at an average of no less than 4.0% by weight. The moisture content shall be tested if directed by the Executive Secretary using the appropriate ASTM method. [R307-401-8]

II.B.1.k The storage piles shall be watered to mini mize generation of fugiti ve dusts as dry conditions warrant or as determined necessary by the Executive Secretary. [R307-401-8]

II.B.2 Fuels

II.B.2.a ISB shall use natural gas as a fuel and pr opane as a backup fuel in the kilns. [R307-401-8]

II.B.3 Monitoring - General Process

II.B.3.a ISB shall install, calibrate, maintain, a nd operate a monitoring device for the continuous measurement of the change in pressure of the gas stream through the baghouse and scrubbers.

A. The minimum pressure drop in inches/w.g., for the baghouse and scrubbers

shall be as follows:

1) Primary crusher baghouse with polyester felt 2.0

with PTFE membrane 0.4

2) Kiln 3 scrubber 0.1

3) Kiln 4 scrubber 2.0

The monitoring device must be certified by the manufacturer to be accurate within plus or minus five percent of the w.g. design measuring device and must be calibrated

on an annual basis in accordance with th e manufacturer's instructions. When the scrubber(s) are in operation, the pressure dr op shall be within the limits specified above except during start-up and shut-down of the scrubber(s). When the primary crusher baghouse is in operation, the pr essure drop shall be within the limits specified above, except during a period of ten crusher operating days following the filter media replacement.DAQE-AN0104230012-10 Page 12

B. Monitoring

Once per operating day for each scrubber, ISB shall verify that the differential pressure is within the permitted range. All pressure gauges shall be located such that an inspector/operator can safel y read the indicator at any time.

C. Record Keeping

Results of the change in pressure shall be recorded on a daily basis. Continuous recording for the monitoring device is not required. [R307-401-8]

II.B.3.b ISB shall install, calibrate, maintain, a nd operate a monitoring device for the continuous measurement of the pH of the scrubbing soluti on of the gas stream through each scrubber.

A. The pH range for the scrubbers shall be as follows:

1) Kiln 3 5-9

2) Kiln 4 5-9

The monitoring device must be certified by the manufacturer to be accurate within plus or minus five percent of the desi gn pH and must be calibrated on an annual

basis in accordance with the manufacturer 's instructions. When the scrubber(s) are in operation, the pH shall be with in the ranges specified above except during start-up and shut-down of the scrubber(s).

B. Monitoring

Once per operating day for each scrubber, ISB shall verify that the pH is within the permitted range. If a meter is u sed, it shall be located such that an inspector/operator can safely read the indicator at any time.

C. Record Keeping

Results of the pH shall be recorded on a daily basis. Continuous recording for the monitoring device is not required. [R307-401-8]

II.B.3.c ISB shall install, calibrate, maintain, a nd operate a monitoring device for the continuous

measurement of the flow rate of the scrubbi ng solution of the gas stream through each

scrubber.

A. The minimum scrubbing liquid flow rate in gallons per minute (gpm), for the

scrubbers shall be as follows:

1) Kiln 3 200

2) Kiln 4 600DAQE-AN0104230012-10 Page 13

The monitoring device must be certified by the manufacturer to be accurate within plus or minus five percent of the desi gn scrubbing liquid flow rate and must be

calibrated on an annual basis in accordan ce with the manufacturer's instructions. When the scrubber(s) are in operation, the scrubbing liquid flow rate shall be no less than the flow rates specified above except during start-up and shut-down of the scrubber(s).

B. Monitoring

Once per operating day for each scrubber, ISB shall verify that the liquid flow rate is within the permitted range. All flow gauges shall be located such that an inspector/operator can safely read the indicator at any time.

C. Record Keeping

Results of the scrubbing liquid flow rate shall be recorded on a daily basis. Continuous recording for the monitoring device is not required. [R307-401-8]

II.B.4 VOC and HAP Limitations

II.B.4.a The plant-wide emissions of VOCs from the brick manufacturing plant and associated operations shall not exceed 150.9 tons per rolling 12-month period for VOCs.

Compliance with the limitation shall be determ ined on a rolling 12-month total. Based on the twentieth day of each month, a new 12-month to tal shall be calculated using data from the previous 12 months.

The VOC emissions shall be determined by ma intaining a record of VOC-emitting materials

used each month. The record shall include the following da ta for each material used:

A. Name of the VOC-emitting material, such as: paint, adhesive, solvent, thinner, reducers, chemical compounds, toxics, isocyanates, etc.

B. Density of each material used (pounds per gallon)

C. Percent by weight of all VOC in each material used

D. Gallons of each VOC-emitting material used

E. The amount of VOC emitted monthly by each material used shall be calculated by the following procedure:

VOC = % VOC by Weight x [Density ( lb )] x Gal Consumed x 1 ton (100) (gal) 2000 lb

F. The amount of VOC emitted monthly from all materials used.DAQE-AN0104230012-10 Page 14

G. The amount of VOCs reclaimed for the month shall be similarly quantified and subtracted from the quantities calculate d above to provide the monthly total VOC emissions. [R307-401-8]

II.B.4.b The plant-wide emissions of HAPs from the brick manufacturing plant and associated operations shall not exceed:

7.2 tons per rolling 12-month period for HCl 6.7 tons per rolling 12-month period for HF 7.0 tons per rolling 12-month period for miscellaneous HAPs 18.2 tons per rolling 12-month period for all HAPs combined

Compliance with the limitation shall be determ ined on a rolling 12-month total. Based on the twentieth day of each month, a new 12-month to tal shall be calculated using data from the previous 12 months.

Compliance with HF and HCl limitations listed above shall be determined through a method of mass balance. The mass balance plan approve d by the Executive Secretary was submitted by ISB on October 22, 2009. If ISB submits any additional revised mass balance methods for determining annual emissions to the Executive S ecretary for approval, the plan shall include, at a minimum, the following:

A. Proposed test methods and test frequency for determining the weight of the elemental fluorine contained in the clays used to manufacture brick

B. Proposed test methods and test frequency for determining the weight of the elemental fluorine contained in the finished product

C. Calculation method of determining emissions of HCL and HF which will demonstrate compliance with the HCl and HF emission limitations listed above.

The miscellaneous HAP emissions shall be determined by maintaining a record of HAPemitting materials used each month. The reco rd shall include the following data for each

material used:

D. Name of the HAP-emitting material, such as: paint, adhesive, solvent, thinner, reducers, chemical compounds, toxics, isocyanates, etc.

E. Density of each material used (pounds per gallon)

F. Percent by weight of all HAP in each material used

G. Gallons of each HAP-emitting material used

H. The amount of HAP emitted monthly by each material used shall be calculated by the following procedure:

HAP = % HAP by Weight x [Density ( lb )] x Gal Consumed x 1 ton (100) (gal) 2000 lbDAQE-AN0104230012-10 Page 15

I. The amount of HAPs emitted monthly from all materials used.

J. The amount of HAPs reclaimed for the month shall be similarly quantified and subtracted from the quantities calculated above to provide the monthly total VOC emissions. [R307-401-8]



### PERMIT HISTORY

This AO is based on the following documents:

Incorporates Additional Information dated August 26, 2010 Incorporates Additional Information dated June 28, 2010 Incorporates Additional Information dated May 20, 2010 Incorporates Additional Information dated May 4, 2010 Incorporates Additional Information dated March 8, 2010 Incorporates Additional Information dated January 12, 2010 Incorporates Additional Information dated November 19, 2009 Incorporates Additional Information dated October 13, 2009 Incorporates Additional Information dated October 7, 2009 Incorporates Additional Information dated September 8, 2009 Incorporates Additional Information dated August 6, 2009 Incorporates Notice of Intent dated July 2, 2009 Supersedes DAQE-AN0104230008-08 dated November 12, 2008



### ADMINISTRATIVE CODING

The following information is for UDAQ internal classification use only:

Salt Lake County

CDS A Nonattainment or Maintenance Area, PM 10 SIP / Maint Plan, Title V (Part 70) Major sourceDAQE-AN0104230012-10 Page 16



### ACRONYMS

The following lists commonly used acronyms and as sociated translations as they apply to this

document:

40 CFR Title 40 of the Code of Federal Regulations

AO Approval Order

BACT Best Available Control Technology

CAA Clean Air Act

CAAA Clean Air Act Amendments

CDS Classification Data System (used by EPA to classify sources by size/type)

CEM Continuous emissions monitor

CEMS Continuous emissions monitoring system

CFR Code of Federal Regulations

CO Carbon monoxide

CO 2 Carbon Dioxide

CO 2 e Carbon Dioxide Equivalent - 40 CFR Part 98, Subpart A, Table A-1

COM Continuous opacity monitor DAQ Division of Air Quality (typically interchangeable with UDAQ) DAQE This is a document tracking code for internal UDAQ use

EPA Environmental Protection Agency

GHG Greenhouse Gas(es) - 40 CFR 52.21 (b)(49)(i)

GWP Global Warming Potential - 40 CFR Part 86.1818-12(a)

HAP or HAPs Hazardous air pollutant(s)

ITA Intent to Approve

LB/HR Pounds per hour

MACT Maximum Achievable Control Technology

MMBTU Million British Thermal Units

NAA Nonattainment Area NAAQS National Ambient Air Quality Standards

NESHAP National Emission Standards for Hazardous Air Pollutants

NOI Notice of Intent

NO

x Oxides of nitrogen

NSPS New Source Performance Standard

NSR New Source Review

PM 10 Particulate matter less than 10 microns in size

PM 2.5 Particulate matter less than 2.5 microns in size

PSD Prevention of Significant Deterioration

PTE Potential to Emit

R307 Rules Series 307

R307-401 Rules Series 307 - Section 401

SO 2 Sulfur dioxide

Title IV Title IV of the Clean Air Act

Title V Title V of the Clean Air Act

TPY Tons per year UAC Utah Administrative Code UDAQ Utah Division of Air Quality (t ypically interchangeable with DAQ)

VOC Volatile organic compounds