April 24, 2009

Eric Ervin Plant Manager Holcim (US) Inc.
4070 Trident Road Three Forks, MT 59752

RE: Final Title V Operating Permit #OP0982-02

Dear Mr. Ervin:

The Department of Environmental Quality has prepared the enclo sed Final Operating Permit #OP0982- 02, for Holcim (US) Inc., located in Three Forks, Montana. Please revi ew the cover page of the attached permit for information pertaining to the action taking place on Permit #OP0982-02.

If you have any questions, please contact Skye Hatten, th e permit writer, at (406) 444-5287 or by email at shatten@mt.gov.

Sincerely,

Vickie Walsh Air Permitting Program Supervisor Air Resources Management Bureau (406) 444-9741 Skye Hatten, P.E. Environmental Engineer Air Resources Management Bureau (406) 444-5287

VW:SH: ob
Enclosure

Cc: Christopher Ajayi, US EPA Region VIII 8P-AR Betsy Burns, US EPA Region VIII, Montana Office Greg Gannon, 4070 Trident Road, Three Forks, MT 59752OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 i STATE OF MONTANA Department of Environmental Quality Helena, Montana 59620

AIR QUALITY OPERATING PERMIT OP0982-02

Issued to: Holcim (US), Inc.
4070 Trident Road Three Forks, MT 59752

Final Date: April 24, 2009 Expiration Date: April 24, 2014

Effective Date: April 24, 2009
Date of Decision: March 24, 2009 End of EPA 45-day Review: March 23, 2009 Proposed Issue Date: February 6, 2009

Application Deemed Technically Complete: January 6, 2009 Application Deemed Administratively Complete: December 10, 2008 Minor Modification Application Received: November 10, 2008
AFS Number: 030- 031-0005A

Permit Issuance and Appeal Processes: In accordance with Montana Code Annotated (MCA) Sections 75-2-217 and 218 and the Administrative Rules of Montana (ARM), ARM Title 17, Chapter 8, Subchapter 12, Operating Permit Progr am, this operating permit is hereby issued by the Department of Environmental Quality (Department) as effective and final on April 24, 2009. This permit must be kept on-site at the above named facility.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 i Montana Air Quality Operating Permit Department of Environmental Quality

SECTION I. GENERAL INFORMATION .............................................................................................. 1

SECTION II. SUMMARY OF EMISSION UNITS ............................................................................... 2

SECTION III. PERMIT CONDITIONS .................................................................................................. 3

A. F ACILITY -W IDE

........................................................................................................................... 3
B. E MITTING U NITS

– EU001 F UGITIVE E MISSIONS : D ISTURBED A REAS

........................................ 6
EU003 Q UARRY B LASTING

.......................................................................... 6
C. E MITTING U NITS

– EU006 R AW M ATERIAL S TORAGE P ILES

...................................................... 8
EU007 F UGITIVE E MISSIONS : H AUL R OADS

................................................ 8
D. E MITTING U NITS

– EU008 P RIMARY C RUSHER

........................................................................... 9
EU009 C RUSHER S CREEN

............................................................................. 9
E. E MITTING U NITS

– EU005 R AW M ATERIALS T RANSFER AND C ONVEYING

.............................. 11
EU010 R AW M ATERIAL S ILO #1: L OADING & U NLOADING

....................... 11
EU011 R AW M ATERIAL S ILOS #2 AND #3: L OADING & U NLOADING

........ 11
EU012 R AW M ATERIAL S ILOS #4 AND #5: L OADING & U NLOADING

........ 11
EU013 R AW M ATERIAL S ILOS #6 AND #7: L OADING & U NLOADING

........ 11
F. E MITTING U NITS

– EU014 C OAL /C OKE U NLOADING

............................................................... 13
EU015 C OAL T RANSFER

............................................................................. 13
EU018 C OAL /C OKE P RIMARY C RUSHER

.................................................... 13
EU019 C OAL S ILO L OADING & U NLOADING

, AND S ECONDARY C RUSHING 13
EU020 C OKE S ILO L OADING & U NLOADING

, AND S ECONDARY C RUSHING 13
G. E MISSION U NIT

– EU021 K ILN

............................................................................................... 15
K ILN A LTERNATE O PERATING S CENARIO #1 ............................................. 20
H. E MITTING U NIT

– EU022 C LINKER C OOLER

........................................................................... 25
I. E MITTING U NIT

– EU023 I NSIDE C LINKER T RANSFER FROM C OOLER

.................................... 27
J. E MITTING U NITS

– EU024 C LINKER S TORAGE S ILOS #1 AND #2 &
I NTERSTICE B IN L OAD /U NLOAD

................................................................. 29
EU027 O UTSIDE C LINKER B INS L OADING

................................................. 29
EU033 C LINKER T RANSFER TO #2 F INISH M ILL & #3 F INISH M ILL

........... 29
EU035 C LINKER T RANSFER TO #4 F INISH M ILL

......................................... 29
EU041 G YPSUM U NLOADING AND T RANSFER

........................................... 29
EU043 O UTSIDE C LINKER T RANSFER TO R ECLAIM B UILDING

.................. 29
K. E MITTING U NIT

– EU025 C EMENT K ILN D UST S ILO L OADING

............................................... 31
L. E MITTING U NITS

– EU026 C EMENT K ILN D UST S ILO U NLOADING TO T RUCK

......................... 33
EU028-031 O UTSIDE C LINKER S TORAGE S ILOS #1-#4 .............................. 33
EU038 D UST D ISCHARGE S POUT BETWEEN K ILN AND P RECIPITATOR

...... 33
EU040 I MPORT C LINKER U NLOADING AND T RANSFER

.............................. 33
EU059 P OST C ONSUMER R ECYCLED G LASS T RANSFERS

........................... 33
EU060 O VERFLOW G YPSUM T RANSFER TO G ROUND

................................ 33
EU061 O VERFLOW G YPSUM T RANSFER TO R ECLAIM B UILDING

............... 33
M. E MISSION U NIT

– EU032 #2 F INISH M ILL

............................................................................... 34
N. E MITTING U NIT

– EU034 #3 F INISH M ILL

............................................................................... 37
O. E MITTING U NITS

– EU036 #4 F INISH M ILL P RODUCT S EPARATOR

........................................... 39
EU037 #4 F INISH M ILL

............................................................................... 39
P. E MITTING U NITS

– EU044 C EMENT L OADED /U NLOADED AT S ILOS #1-#7, #10, #11, & #13 ... 41
EU045 C EMENT L OADED /U NLOADED AT S ILOS #8, #9, & #12 .................. 41 Q. E MITTING U NITS

– EU046 C EMENT T RANSFERRED F ROM S ILOS #1

- #13 TO B ULK L OAD S ILOS #14

- #25 ...................................................................... 43
EU0047 C EMENT L OADED /U NLOADED AT S ILOS #14

- #25....................... 43
EU049 B ULK C EMENT T RUCK T RANSFER /L OADOUT #1............................ 43
EU050 B ULK C EMENT T RUCK T RANSFER /L OADOUT #2............................ 43OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 ii EU051 B ULK C EMENT R AILCAR T RANSFER /L OADOUTS #1 AND #2 .......... 43
EU062CKD R ECYCLE D UST S COOPS

......................................................... 43
R. E MITTING U NIT

– EU048 C EMENT L OADED /U NLOADED AT S ILOS #26

- #30 ......................... 44
S. E MISSION U NIT

– EU053 CKD AND F LYASH T RANSFERS TO / FROM P OZZOLAN S ILO

............ 46
T. E MITTING U NIT

– EU054 L ANDFILLED C EMENT K ILN D UST (CKD) H ANDLING

.................... 48
U. E MITTING U NIT

– EU055 M ATERIAL H ANDLING S YSTEM FOR F EEDING THE F INISH M ILLS

... 49
V. E MITTING U NIT

– EU042 O UTSIDE C LINKER T RANSFER TO P ILE

............................................ 51

SECTION IV. NON-APPLICABLE REQUIREMENTS ..................................................................... 53

A. F ACILITY -W IDE

......................................................................................................................... 53
B. E MISSION U NITS

........................................................................................................................ 54

SECTION V. GENERAL PERMIT CONDITIONS............................................................................ 55

A. C OMPLIANCE R EQUIREMENTS

................................................................................................... 55
B. C ERTIFICATION R EQUIREMENTS

............................................................................................... 55
C. P ERMIT S HIELD

......................................................................................................................... 56
D. M ONITORING

, R ECORDKEEPING

, AND R EPORTING R EQUIREMENTS

......................................... 57
E. P ROMPT D EVIATION R EPORTING

............................................................................................... 58
F. E MERGENCY P ROVISIONS

.......................................................................................................... 58
G. I NSPECTION AND E NTRY

........................................................................................................... 59
H. F EE P AYMENT

........................................................................................................................... 59
I. M INOR P ERMIT M ODIFICATIONS

............................................................................................... 59
J. C HANGES N OT R EQUIRING P ERMIT R EVISION

.......................................................................... 60
K. S IGNIFICANT P ERMIT M ODIFICATIONS

...................................................................................... 61
L. R EOPENING FOR C AUSE

............................................................................................................. 61
M. P ERMIT E XPIRATION AND R ENEWAL

......................................................................................... 61
N. S EVERABILITY C LAUSE

............................................................................................................. 62
O. T RANSFER OR A SSIGNMENT OF O WNERSHIP

............................................................................. 62
P. E MISSIONS T RADING

, M ARKETABLE P ERMITS

, E CONOMIC I NCENTIVES

.................................. 62 Q. N O P ROPERTY R IGHTS C ONVEYED

........................................................................................... 62
R. T ESTING R EQUIREMENTS

.......................................................................................................... 63
S. S OURCE T ESTING P ROTOCOL

.................................................................................................... 63
T. M ALFUNCTIONS

........................................................................................................................ 63
U. C IRCUMVENTION

....................................................................................................................... 63
V. M OTOR V EHICLES

..................................................................................................................... 63
W. A NNUAL E MISSIONS I NVENTORY

.............................................................................................. 63
X. O PEN B URNING

......................................................................................................................... 63
Y. M ONTANA A IR Q UALITY P ERMITS

............................................................................................ 63
Z. N ATIONAL E MISSION S TANDARD FOR A SBESTOS

..................................................................... 64
AA. A SBESTOS

.................................................................................................................................. 64
BB. S TRATOSPHERIC O ZONE P ROTECTION

– S ERVICING OF M OTOR V EHICLE A IR C ONDITIONERS 64
CC. S TRATOSPHERIC O ZONE P ROTECTION

– R ECYCLING AND E MISSION R EDUCTIONS

.................. 65
DD. E MERGENCY E PISODE P LAN

...................................................................................................... 65
EE. D EFINITIONS

.............................................................................................................................. 65

APPENDIX A INSIGNIFICANT EMISSION UNITS........................................................................ A-1

APPENDIX B DEFINITIONS AND ABBREVIATIONS................................................................... B-1

APPENDIX C NOTIFICATION ADDRESSES .................................................................................. C-1

APPENDIX D AIR QUALITY INSPECTOR INFORMATION ....................................................... D-1

APPENDIX E POLLUTION CONTROL DEVICE INSPECTION AND

MAINTENANCE PLAN............................................................................................... E-1

APPENDIX F COMPLIANCE ASSURANCE MONITORING (CAM) .......................................... F-1OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 1 Terms not otherwise defined in this permit or in the Definitions and Abbrev iations Appendix of this permit have the meaning assigned to them in the referenced regulations.

SECTION I. GENERAL INFORMATION

The followin g general information is provided pursuant to ARM 17.8.1210(1).

Company Name: Holcim (US), Inc.

Mailing Address: 4070 Trident Road

City: Three Forks State: MT Zip: 59752

Plant Location: NE 1⁄4 Section 9, SE 1⁄4 Section 4, SW 1⁄4 Section 3, NW 1⁄4 Section 10, Township 2 North, Range 2 East, Gallatin County, MT

Responsible Official: Eric Ervin, Plant Manager Phone: (406) 285-3985

Facility Contact Person: Greg Gannon, Environmental Manager Phone: (406) 285-4977

Primary SIC Code: 3241 (plant), 1422 (quarry)

Nature of Business: Portland Cement Manufacturing

Description of Process:

The production of Portland cement begins at the quarry . Most of the raw material used in the cement process is combined high and low-grade limestone qu arried from Holcim’s quarry. Limestone rock and other raw materials are blasted and loaded onto trucks and transported to the crusher or to stockpiles. The raw materials are conveyed from the primary a nd secondary crushers to the storage bins.

From the storage bins, the raw materials are conveye d to the ball mill where the ore is ground with water to form slurry and is then sent to storage tanks. In the tanks, the slurry is blended thoroughly before entering the kiln.

The slurry is pumped to the uphill end of the kiln where the slurry is heated, evaporating water (H 2 O) from the slurry and turning it into clinker. The plant uses a combination of natural gas, coal and/or coke as fuel sources for the clinker production.

When the clinker leaves the kiln, it is cooled, tran sported by drag chains, pan conveyor and bucket elevator to the clinker bins or outside storage. From the clinker bins, clinker and gypsum go to the “finish” ball mills, where it is gr ound to produce portland cement. The final cement product is conveyed to storage silos where it is loaded into railroad cars or bulk trucks.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 2 SECTION II. SUMMARY OF EMISSION UNITS

The emission units regulated by this permit are the following (ARM 17.8.1211):

Emissions Unit
ID Description Pollution Control Device/Practice

EU001 Fugitive Emissions: Disturbed Areas None EU003 Quarry Blasting None
EU005 Raw Material Transfer and Conveying Baghouses

EU006 Raw Material Storage Piles Water and/or Chemical Dust Suppressant

EU007 Fugitive Emissions: Haul Roads Wate r and/or Chemical Dust Suppressant EU008 Primary Crusher Baghouse
EU009 Crusher Screen Baghouse

EU010 Raw Material Silo #1 Loading & Unloading Baghouse

EU011 Raw Material Silos #2 & #3 Loading & Unloading Baghouse

EU012 Raw Material Silos #4 & #5 Loading & Unloading Baghouse

EU013 Raw Material Silos #6 & #7 Loading & Unloading Baghouse
EU014 Coal/Coke Unloading Baghouse
EU015 Coal Transfer Baghouse

EU018 Coal/Coke Primary Crusher Baghouse
EU019 Coal Silo Loading & Unload ing & Secondary Crushing Baghouse

EU020 Coke Silo Loading & Unload ing, & Secondary Crushing Baghouse
EU021 Kiln ESP
EU022 Clinker Cooler Baghouse

EU023 Inside Clinker Transfer from Cooler Baghouse

EU024 Clinker Storage Silo #1, #2, & Interstice Bin Load/Unload Baghouse

EU025 Cement Kiln Dust Silo Loading Baghouse

EU026 Cement Kiln Dust Silo Unloading to Tr uck Water and/or Chemi cal Dust Suppressant

EU027 Outside Clinker Bins Loading Baghouse EU028-031 Outside Clinker Storage Silos 1-4 None
EU032 #2 Finish Mill Baghouse

EU033 Clinker Transfer to #2 Finish Mill & #3 Finish Mill Baghouse

EU034 #3 Finish Mill Baghouse

EU035 Clinker Transfer to #4 Finish Mill Baghouse

EU036 #4 Finish Mill Product Separator Baghouse

EU037 #4 Finish Mill Baghouse

EU038 Dust Discharge Spout between Kiln and Precipitator Baghouse

EU040 Import Clinker Unloading & Transfer Baghouse

EU041 Gypsum Unloading & Transfer Baghouse
EU043 Outside Clinker Transfer to Reclaim Building Baghouse

EU044 Cement Loaded/Unloaded at S ilos #1-7, 10, 11, & 13 2 Baghouses

EU045 Cement Loaded/Unloaded at Silos #8, 9 , & 12 2 Baghouses

EU046 Cement Transferred form Silos #1-13 to Bulk Load Silos #14-25 Baghouse

EU047 Cement Loaded/Unloaded at Silos #14-25 2 Baghouse

EU048 Cement Loaded/Unloaded at Silos #26-30 Baghouse
EU049-050 Bulk Cement Truck Transfer/Loadouts 1 & 2 2 Baghouses

EU051 Bulk Cement Railcar Tr ansfer/Loadouts 1 & 2 Baghouse

EU053 CKD and Flyash Transfers to/from Pozzolan Silo Baghouse

EU054 Landfilled Cement K iln Dust Handling None
EU055 Material Handling System for Feeding the Finish Mills 3 Baghouses
EU059 Post Consumer Recycled Glass Transfers None
EU060 Overflow Gypsum Transfer to Ground None
EU061 Overflow Gypsum Transfer to Reclaim Building Feed Hopper Enclosed in Building EU062 CKD Recycle Dust Scoops 2 BaghousesOP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 3 SECTION III. PERMIT CONDITIONS

The following requirements and conditions are applicab le to the facility or to specific emission units located at the facility (ARM 17.8.1211, 1212, and 1213).

A. Facility-Wide

Conditions Rule Citation Rule De scription Pollutant/Parameter Limit A.1 ARM 17.8.105 Testing Require ments Testing Requirements ------- A.2 ARM 17.8.304(1) Visible Ai r Contaminants Opacity 40% A.3 ARM 17.8.304(2) Visible Ai r Contaminants Opacity 20% A.4 ARM 17.8.308(1) Particulate Matter, Airborne Fugitive Opacity 20% A.5 ARM 17.8.308(2) Particulate Matter , Airborne Reasonable Precautions
-------

A.6 ARM 17.8.308 Particul ate Matter, Airborne Reasonable Precaution,
Construction 20%

A.7 ARM 17.8.309 Particulate Matter, Fuel Burning Equipment Particulate Matter E= 0.882 * H -0.1664 Or
E= 1.026 * H -0.233

A.8 ARM 17.8.310 Particulate Matt er, Industrial
Processes Particulate Matter E= 4.10 * P 0.67 or E= 55 * P 0.11 - 40

A.9 ARM 17.8.322(4) Sulfur Oxide Emissions, Sulfur in
Fuel Sulfur in Fuel (liquid or solid fuels) 1 lb/MMBtu fired

A.10 ARM 17.8.322(5) Sulfur Oxide Emissions, Sulfur in
Fuel Sulfur in Fuel (gaseous) 50 gr/100 CF

A.11 ARM 17.8.324(3) Hydrocarbon Emissions,
Petroleum Products Gasoline Storage Tanks -------

A.12 ARM 17.8.324 Hydrocarbon Emissions,
Petroleum Products 65,000 Gallon Capacity -------

A.13 ARM 17.8.324 Hydrocarbon Emissions,
Petroleum Products Oil-effluent Water Separator -------

A.14 ARM 17.8.340 New Source Performance
Standards All Applicable Provisions of Subparts F & Y -------

A.15 ARM 17.8.342 NESHAP s General Provisions SSM Plans Submittal

A.16 ARM 17.8.749 Permit Conditions, Facility Clinker Handling Operational Limit 500,000 tons/rolling 12-
Month Period of Clinker
Handled

A.17 40 CFR 63 National Emission Standards for
Hazardous Air Pollutants All Applicable Provisions of Subpart LLL ------ A.18 ARM 17.8.1212 Reporting Require ments Compliance Monitoring ------- A.19 ARM 17.8.1207 Reporting Require ments Annual Certification -------

Conditions

A.1. Pursuant to ARM 17.8.105, any person or pers ons responsible for the emission of any air contaminant into the outdoor atmosphere shall, upon written request of the Department, provide the facilities and necessary equipment (including instruments and sensing devices) and shall conduct test, emission or ambient, for such pe riods of time as may be necessary using methods approved by the Department.

Compliance demonstration frequencies that list “as required by the Department” refer to ARM 17.8.105. In addition, for such sources, complia nce with limits and conditions listing “as required by the Department” as the frequency, is verified annually using emission factors and engineering calculations by the Department’s compliance in spectors during the annual emission inventory review; in the case of Method 9 tests, compliance is monitored during the regular inspection by the compliance inspector.

A.2. Pursuant to ARM 17.8.304(1), Holcim shall not cau se or authorize emissions to be discharged into the outdoor atmosphere from any source installed on or before November 23, 1968, that exhibit an opacity of 40% or greater averaged over 6 con secutive minutes, unless otherwise specified by rule or in this permit.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 4 A.3. Pursuant to ARM 17.8.304(2), Holcim shall not cau se or authorize emissions to be discharged into the outdoor atmosphere from any source installed af ter November 23, 1968, that exhibit an opacity of 20% or greater averaged over 6 consecutive minutes, unless otherwise specified by rule or in this permit.

A.4. Pursuant to ARM 17.8.308(1), Holcim shall not cause or authorize the production, handling, transportation, or storage of any material unless reasonable precautions to control emissions of particulate matter are taken. Such emissions of airborne particulate matter from any stationary source shall not exhibit an opacity of 20% or greater averaged over 6 consecutive minutes, unless otherwise specified by rule or in this permit.

A.5. Pursuant to ARM 17.8.308(2), Holcim shall not cau se or authorize the use of any street, road or parking lot without taking reasonable precautions to control emissions of airborne particulate matter, unless otherwise specified by rule or in this permit.

A.6. Pursuant to ARM 17.8.308, Holcim shall not op erate a construction site or demolition project unless reasonable precautions are taken to control emi ssions of airborne particulate matter. Such emissions of airborne particulate matter from any stationary source shall not exhibit an opacity of 20% or greater averaged over 6 consecutive minutes, unless otherwise specified by rule or in this permit.

A.7. Pursuant to ARM 17.8.309, unless othe rwise specified by rule or in this permit, Holcim shall not cause or authorize particulate matter caused by th e combustion of fuel to be discharged from any stack or chimney into the outdoor atmosphere in excess of the maximum allowable emissions of particulate matter for existing fuel burning equi pment and new fuel burning equipment calculated using the following equations:

For existing fuel burning equipment (ins talled before November 23, 1968):
E =0.882 * H -0.1664

For new fuel burning equipment (insta lled on or after November 23, 1968):
E =1.026 * H -0.233

Where H is the heat input capacity in million BTU (MMBtu) per hour and E is the maximum allowable particulate emissions rate in pounds per MMBtu.

A.8. Pursuant to ARM 17.8.310, unless othe rwise specified by rule or in this permit, Holcim shall not cause or authorize particulate matter to be disch arged from any operation, process, or activity into the outdoor atmosphere in excess of the maximum hourly allowable emissions of particulate matter calculated using the following equations:

For process weight rates up to 30 tons per hour: E = 4.10 * P 0.67 For process weight rates in excess of 30 tons per hour: E = 55.0 * P 0.11 – 40

Where E = rate of emissions in pounds per hour and p = process weight rate in tons per hour.

A.9. Pursuant to ARM 17.8.322(4), Holcim shall not burn liquid or solid fuels containing sulfur in excess of 1 pound per million BTU fired, unless otherwise specified by rule or in this permit.

A.10. Pursuant to ARM 17.8.322(5), Holcim shall not burn any gaseous fuel containing sulfur compounds in excess of 50 grains per 100 cubic feet of gaseous fuel, calculated as hydrogen sulfide at standard conditions, unless otherwi se specified by rule or in this permit.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 5 A.11. Pursuant to ARM 17.8.324(3), Holcim shall not load or permit the loading of gasoline into any stationary tank with a capacity of 250 gallons or more from any tank truck or trailer, except through a permanent submerged fill pipe, unless such tank is equipped with a vapor loss control device or is a pressure tank as described in AR M 17.8.324(1), unless otherwise specified by rule or in this permit.

A.12. Pursuant to ARM 17.8.324, unless othe rwise specified by rule or in this permit, Holcim shall not place, store or hold in any stationary tank, reser voir or other container of more than 65,000 gallon capacity any crude oil, gasoline or petroleum di stillate having a vapor pr essure of 2.5 pounds per square inch absolute or greater under actual storage conditions, unless such tank, reservoir or other container is a pressure tank maintaining worki ng pressure sufficient at all times to prevent hydrocarbon vapor or gas loss to the atmosphere, or is designed and equipped with a vapor loss control device, properly installed, in good working order and in operation.

A.13. Pursuant to ARM 17.8.324, unless othe rwise specified by rule or in this permit, Holcim shall not use any compartment of any single or multiple-com partment oil-effluent water separator, which compartment receives effluent water containing 200 gallons a day or more of any petroleum product from any equipment processing, refining, treating, storing or handling kerosene or other petroleum product of equal or greater volatility than kerosene, unless such compartment is equipped with a vapor loss control device, cons tructed so as to prevent emission of hydrocarbon vapors to the atmosphere, properly installed, in good working order and in operation.

A.14. Holcim shall comply with all applicable provi sions, as appropriate, of 40 CFR 60, Subpart F –
Standards of Performance for Portland Cement Pl ants and Subpart Y – Standards of Performance for Coal Preparation Plants (ARM 17.8.340, and 40 CFR 60, Subpart F and Y).

A.15. Pursuant to ARM 17.8.342 and 40 CFR 63.6, Holcim shall submit to the Department a copy of any startup, shutdown, and malfunction (SSM) plan required under 40 CFR 63.6(e)(3) within 30 days of the effective date of th is operating permit (if not previously submitted), within 30 days of the compliance date of any new National Em ission Standard for Hazardous Air Pollutants (NESHAPs) or Maximum Achievable Control Tech nology (MACT) standard, and within 30 days of the revision of any such SSM plan, when a pplicable. The Department requests submittal of such plans in electronic form, when possible.

A.16. Holcim shall limit clinker handling to 500,000 tons during any rolling 12-month period (ARM 17.8.749).

A.17. Holcim shall comply with all applicable provisions of 40 CFR 63, Subpart LLL – National
Emission Standards for Hazardous Air Pollutant s from the Portland Cement Manufacturing Industry. In 2000, the Trident facility was designated an area source for the purpose of determining the applicability of Portland Cement Maximum Achievable Control Technology (PC MACT). The compliance date for an owner or ope rator of an existing affected source subject to the provisions of Subpart LLL was June 14, 2002. Holcim shall comply with 40 CFR 63, Subpart LLL, which includes but is not limited to:

a. Notification to the Department within 15 days of a significant change in raw material or fuel;

b. Preparation of a written operations and maintenance plan for the kiln (40 CFR 63.6); and

c. Development and implementation of a written startup, shutdown, and malfunction plan (40 CFR 63.6).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 6 A.18. On or before February 15 and August 15 of each year, Holcim shall submit to the Department the compliance monitoring reports required by Section V.D. These reports must contain all information required by Section V.D, as well as the information required by each individual emissions unit. For the reports due by February 15 of each year, Holcim may submit a single report, provided that it contains all the inform ation required by Section V.B & V.D. Per ARM 17.8.1207,

any application form, report, or compliance certification submitted pursuant to ARM Title 17, Chapter 8, Subchapter 12 (including semiannual monitoring reports), shall contain certification by a responsible official of truth, a ccuracy and completeness. This certification and any other certificati on required under ARM Title 17, Chapter 8, Subchapter 12, shall state that, “based on information and belief formed after reasonable inqui ry, the statements and information in the document are true, accurate and complete.”

A.19. By February 15 of each year, Holcim shall submit to the Department the compliance certification required by Section V.B. The annual certifica tion required by Section V.B must include a statement of compliance based on the informa tion available which identifies any observed, documented or otherwise known instance of noncomp liance for each applicable requirement. Per ARM 17.8.1207,

any application form, report, or compliance certification submitted pursuant to ARM Title 17, Chapter 8, Subchapter 12 (including annual certifications), shall c ontain certification by a responsible official of truth, accuracy and completeness. This certification and any other certification required under ARM Title 17, Chapter 8, Subchapter 12, shall state that, “based on information and belief formed after reasonable inquiry, the statements and information in the document are true, accurate and complete.”

B. Emitting Units – EU001 Fugitive Emissions: Disturbed Areas EU003 Quarry Blasting

Condition(s) Pollutant/Parameter Permit Limit Compliance Demonstration Method Frequency Reporting Requirements

Method 9 As required by the Department

and Section

III.A.1. Semiannual B.1, B.2, B.3, B.4, B.5, B.6,
B.7 Opacity 20%

Visual Surveys Weekly Semiannual

Conditions

B.1. Holcim shall not cause or authorize the production, handling, transportation, or storage of any material unless reasonable precautions to control emissions of airborne particulate matter are taken. Such emissions of airborne particulate matter from any stationary source shall not exhibit an opacity of 20% or greater averaged over 6 consecutive minutes (ARM 17.8.308(1)).

Compliance Demonstration

B.2. Once per calendar week during daylight hours, Holc im shall visually survey emissions from the emitting units for any sources of excessive emissi ons. For the purpose of this survey, excessive emissions are considered to be any visible em issions, which meet or exceed 15% opacity. TheOP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 7 person conducting the survey does not have to be an EPA Method 9 certified observer. However,
the individual must have been certified as a Met hod 9 observer within the previous 2 years of the visual survey being performed. If sources of vi sible emissions are identified, Holcim shall immediately conduct a Method 9 or take corrective action to contain or minimize the source of emissions. If corrective actions are taken, then Holcim shall immediately conduct a subsequent visual survey to monitor compliance. The person conducting the visual survey shall record the results of the survey in a log, including any co rrective action taken. Conducting a visual survey does not relieve Holcim of a liability for a violation determined using Method 9.

Method 9 tests must be performed in accordance with the Montana Source Test Protocol and Procedures Manual, except that prior notification of the test is not required. Each observation period must be a minimum of 6 minutes unless any one reading is 20% or greater, then the observation period must be a minimum of 20 minutes or until a violation of the standard has been documented, whichever is a shorter peri od of time (ARM 17.8.106 and ARM 17.8.1213).

Recordkeeping

B.3. Holcim shall maintain a log to verify that the visual surveys were performed as specified in Section III.B.2. Each log entry must include the date, time, results of the survey, and observer's initials. Whether visual surveys or Method 9 t ests are conducted, if any corrective action is required, the time, date, observer’s initials, and any preventative or corrective action taken must be recorded in the log (ARM 17.8.1212).

B.4. All compliance source test recordkeeping shall be performed in accordance with the test method
used and the Montana Source Test Protocol and Procedures Manual, and shall be maintained on site (ARM 17.8.106 and ARM 17.8.1212).

Reporting

B.5. Any compliance source test reports must be submitted in accordance with the Montana Source
Test Protocol and Procedures Manua l (ARM 17.8.106 and ARM 17.8.1212).

B.6. The annual compliance certification required by Section V.B must contain a certification statement for the above applicable requirements (ARM 17.8.1212).

B.7. The semiannual monitoring report shall provide (ARM 18.8.1212):

a. A summary of the results of any compliance test conducted during the last reporting period;
and

b. Certification that the visual surveys were performed and logged as required in Sections
III.B.2 and III.B.3.

c. Identify any instances of excessive fugitive emissions and provide a summary of any
corrective action taken.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 8 C. Emitting Units – EU006 Raw Material Storage Piles EU007 Fugitive Emissions: Haul Roads

Condition(s) Pollutant/Parameter Permit Limit Compliance Demonstration Method Frequency Reporting Requirements

Method 9 As required by the Department

and Section

III.A.1. C.1, C.3, C.4, C.5, C.6, C.7,
C.8 Opacity 20%

Visual Survey Weekly Semiannual

C.2, C.3, C.4,

C.7, C.8 Airborne Particulate Matter Reasonable
Precaution Water and/or
Chemical Dust Suppressants As Needed Semiannual

Conditions

C.1. Holcim shall not cause or authorize the production, handling, transportation, or storage of any material unless reasonable precautions to control emissions of airborne particulate matter are taken. Such emissions of airborne particulate matter from any stationary source shall not exhibit an opacity of 20% or greater averaged over 6 consecutive minutes (ARM 17.8.308(1)).

C.2. Holcim shall not cause or authorize the use of any street, road, or parking lot without taking reasonable precautions to control emissions of ai rborne particulate matter (ARM 17.8.308(2)).

Compliance Demonstration

C.3. Once per calendar week during daylight hours, Holcim shall visually survey emissions from the emitting units for any sources of excessive emissi ons. For the purpose of this survey, excessive emissions are considered to be any visible em issions, which meet or exceed 15% opacity. The person conducting the survey does not have to be an EPA Method 9 certified observer. However,
the individual must have been certified as a Met hod 9 observer within the previous 2 years of the visual survey being performed. If sources of vi sible emissions are identified, Holcim shall immediately conduct a Method 9 or take corrective action to contain or minimize the source of emissions. If corrective actions are taken, then Holcim shall immediately conduct a subsequent visual survey to monitor compliance. The person conducting the visual survey shall record the results of the survey in a log, including any co rrective action taken. Conducting a visual survey does not relieve Holcim of a liability for a violation determined using Method 9.

Method 9 tests must be performed in accordance with the Montana Source Test Protocol and Procedures Manual, except that prior notification of the test is not required. Each observation period must be a minimum of 6 minutes unless any one reading is 20% or greater, then the observation period must be a minimum of 20 minutes or until a violation of the standard has been documented, whichever is a shorter peri od of time (ARM 17.8.106 and ARM 17.8.1213).

Recordkeeping

C.4. Holcim shall maintain, on site, a log to verify that the visual surveys were performed as specified in Section III.C.3. Each log entry must include th e date, time, results of the survey, and observer's initials. Whether visual surveys or Method 9 t ests are conducted, if any corrective action is required, the time, date, observer’s initials, and any preventative or corrective action taken must be recorded in the log (ARM 17.8.1212).

C.5. All compliance source test recordkeeping shall be performed in accordance with the test method
used and the Montana Source Test Protocol and Procedures Manual, and shall be maintained on site (ARM 17.8.106 and ARM 17.8.1212).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 9 Reporting

C.6. Any compliance source test reports must be submitted in accordance with the Montana Source
Test Protocol and Procedures Manua l (ARM 17.8.106 and ARM 17.8.1212).

C.7. The annual compliance certification required by Section V.B must contain a certification statement for the above applicable requirements (ARM 17.8.1212).

C.8. The semiannual monitoring report shall provide (ARM 17.8.1212):

a. A summary of the results of any compliance test conducted during the last reporting period;

b. Certification that the visual surveys were performed and logged as required in Sections III.C.3 and III.C.4; and

c. Identify any instances of excessive fugitive emissions and provide a summary of any
corrective action taken.

D. Emitting Units – EU008 Primary Crusher
EU009 Crusher Screen

Condition(s) Pollutant/Parameter Permit Limit Compliance Demonstration Method Frequency Reporting Requirements
D.1, D.5, D.9,

D.12, D.13,
D.14 Opacity 20% Method 9 Every 5 years Semiannual

D.2, D.6, D.9,

D.12, D.13,
D.14 Particulate Matter E= 4.10 * P 0.67 or E= 55 * P 0.11 - 40 Method 5 Every 5 years Semiannual

D.3, D.7, D.10,

D.13, D.14 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Operation and
Maintenance of

Baghouse(s) Whenever
Process Equipment is

Operating Semiannual

D.4, D.8, D.11,

D.13, D.14 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Covers and
Enclosures Whenever
Process Equipment is

Operating Semiannual

Conditions

D.1. Holcim shall not cause or authorize emissions to be discharged into the outdoor atmosphere from any source installed after November 23, 1968, that exhibits an opacity of 20% or greater averaged over 6 consecutive minutes (ARM 17.8.304(2)).

D.2. The particulate emissions from process weight shall not exceed the value calculated by E = 4.10 *
P 0.67 for process weight rates up to 30 tons per hour and/or E = 55.0 * P 0.11 – 40 for process weight rates in excess of 30 tons per hour, where E is the rate of emissions in pounds per hour and P is the process weight rate in tons per hour (ARM 17.8.310).

D.3. Holcim shall operate and ma intain baghouse(s) to control emissions from the emitting units (ARM 17.8.749).

D.4. When process equipment is operating, Holcim shall use and maintain, as they were intended, conveyor covers, transfer point covers, or st ructural enclosures surrounding process equipment (ARM 17.8.749).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 10 Compliance Demonstration

D.5. Holcim shall monitor compliance with the 20% opacity limit contained in Section III.D.1 by performing a Method 9 test once every 5 years or according to another testing/monitoring schedule as may be approved by the Department . The test methods and procedures shall be
conducted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106 and ARM 17.8.1213).

D.6. Holcim shall monitor compliance with the pa rticulate emission limitation contained in Section III.D.2 by performing a Method 5 test, or another test method approved by the Department, once every 5 years or according to another testing/m onitoring schedule as may be approved by the Department. The test methods and procedur es shall be conducted in accordance with the
Montana Source Test Protocol and Procedur es Manual (ARM 17.8.106 and ARM 17.8.1213).

D.7. Holcim shall monitor compliance with S ection III.D.3 by inspecting and maintaining the baghouse(s) in accordance with Appendix E of this permit (ARM 17.8.1213).

D.8. Holcim shall monitor compliance with Sec tion III.D.4 by documenting that conveyor covers, transfer point covers, or structural enclosur es surrounding process equipment were maintained and in place during operation of process equipment. The records shall include all repair and maintenance activity to all conveyor covers, transfer point covers, or structural enclosures. The records must include, but are not limited to, the date, time, and action(s) taken for repair and maintenance (ARM 17.8.1213).

Recordkeeping

D.9. All compliance source test recordkeeping shall be performed in accordance with the test method used and the Montana Source Test Protocol and Procedures Manual, shall be maintained on site, and shall be submitted to the Department upon request (ARM 17.8.106 and ARM 17.8.1212).

D.10. Holcim shall maintain records of all in spection and maintenance activities performed on the baghouse(s) in accordance with the requirements in Appendix E of this permit. All inspection and maintenance records must be available to the Department for inspection and must be submitted to the Department upon request (ARM 17.8.1212).

D.11. Holcim shall maintain the records required by Section III.D.8 on site and submit the information to the Department upon request (ARM 17.8.1212).

Reporting

D.12. Any compliance source test reports must be submitted in accordance with the Montana Source
Test Protocol and Procedures Manua l (ARM 17.8.106 and ARM 17.8.1212).

D.13. The annual compliance certification required by Section V.B must contain a certification statement for the above applicable requirements (ARM 17.8.1212).

D.14 The semiannual monitoring report shall provide (ARM 17.8.1212):

a. A summary of the results of any compliance test conducted during the last reporting period;

b. Certification that the baghouse(s) were opera ted, inspected, and maintained as required by Sections III.D.3 and III.D.7; and

c. Certification that the documentation requi red in Section III.D.8 was maintained.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 11 E. Emitting Units – EU005 Raw Mat erials Transfer and Conveying EU010 Raw Material Silo #1: Loading & Unloading EU011 Raw Material Silos #2 and #3: Loading & Unloading EU012 Raw Material Silos #4 and #5: Loading & Unloading EU013 Raw Material Silos #6 and #7: Loading & Unloading

Condition(s) Pollutant/Parameter Permit Limit Compliance Demonstration Method Frequency Reporting Requirements

E.1, E.5, E.9, E.12, E.13,
E.14 Opacity 20% Method 9 As Required by the Department

and Section

III.A.1 Semiannual

E.2, E.6, E.9, E.12, E.13,
E.14 Particulate Matter E= 4.10 * P 0.67 or E= 55 * P 0.11 - 40 Method 5 As Required by the Department

and Section

III.A.1 Semiannual

E.3, E.7, E10,

E13, E.14 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Operation and
Maintenance of

Baghouse(s) Whenever
Process Equipment is

Operating Semiannual

E.4, E.8, E.11,

E.13, E.14 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Covers and
Enclosures Whenever
Process Equipment is

Operating Semiannual

Conditions

E.1. Holcim shall not cause or authorize emissions to be discharged into the outdoor atmosphere from any source installed after November 23, 1968, that exhibits an opacity of 20% or greater averaged over 6 consecutive minutes (ARM 17.8.304(2)).

E.2. The particulate emissions from process weight shall not exceed the value calculated by E = 4.10 *
P 0.67 for process weight rates up to 30 tons per hour and/or E = 55.0 * P 0.11 – 40 for process weight rates in excess of 30 tons per hour, where E is the rate of emissions in pounds per hour and P is the process weight rate in tons per hour (ARM 17.8.310).

E.3. Holcim shall operate and ma intain baghouse(s) to control emissions from the emitting units (ARM 17.8.749).

E.4. When process equipment is operating, Holcim shall use and maintain, as they were intended, conveyor covers, transfer point covers, or st ructural enclosures surrounding process equipment (ARM 17.8.749).

Compliance Demonstration

E.5. Holcim shall monitor compliance with the 20% opacity limit contained in Section III.E.1 by performing a Method 9 test as required by the Depart ment and Section III.A.1. The test methods and procedures shall be conducted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106 and ARM 17.8.1213).

E.6. Holcim shall monitor compliance with the pa rticulate emission limitation contained in Section III.E.2 by performing a Method 5 test, or another test method approved by the Department, as required by the Department and Section III.A.1. The test methods and procedures shall be
conducted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106 and ARM 17.8.1213).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 12 E.7. Holcim shall monitor compliance with S ection III.E.3 by inspecting and maintaining the baghouse(s) in accordance with Appendix E of this permit (ARM 17.8.1213).

E.8. Holcim shall monitor compliance with Sec tion III.E.4 by documenting that conveyor covers, transfer point covers, or structural enclosur es surrounding process equipment were maintained and in place during operation of process equipment. The records shall include all repair and maintenance activity to all conveyor covers, transfer point covers, or structural enclosures. The records must include, but are not limited to, the date, time, and action(s) taken for repair and maintenance (ARM 17.8.1213).

Recordkeeping

E.9. All compliance source test recordkeeping shall be performed in accordance with the test method used and the Montana Source Test Protocol and Procedures Manual, shall be maintained on site, and shall be submitted to the Department upon request (ARM 17.8.106 and ARM 17.8.1212).

E.10. Holcim shall maintain records of all inspection and maintenance activities performed on the baghouse(s) in accordance with the requirements in Appendix E of this permit. All inspection and maintenance records must be available to the Department for inspection and must be submitted to the Department upon request (ARM 17.8.1212).

E.11. Holcim shall maintain the records required by Section III.E.8 on site and submit the information to the Department upon request (ARM 17.8.1212).

Reporting

E.12. Any compliance source test reports must be submitted in accordance with the Montana Source
Test Protocol and Procedures Manua l (ARM 17.8.106 and ARM 17.8.1212).

E.13. The annual compliance certification required by Section V.B must contain a certification statement for the above applicable requirements ARM 17.8.1212.

E.14 The semiannual monitoring report shall provide (ARM 17.8.1212):

a. A summary of the results of any compliance test conducted during the last reporting period;

b. Certification that the baghouse(s) were ope rated, inspected, and maintained as required by Sections III.E.3 and III.E.7; and

c. Certification that the documentation required in Section III.E.8 was maintained.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 13 F. Emitting Units – EU014 Coal/Coke Unloading
EU015 Coal Transfer EU018 Coal/Coke Primary Crusher EU019 Coal Silo Loading & Unloading, and Secondary Crushing EU020 Coke Silo Loading & Unloading, and Secondary Crushing

Condition(s) Pollutant/Parameter Permit Limit Compliance Demonstration Method Frequency Reporting Requirements

F.1, F.6, F.9,

F.12, F.13 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Operation and
Maintenance of

Baghouse(s) Whenever
Process Equipment is

Operating Semiannual

F.2, F.4, F.8, F.11, F.12,
F.13 Opacity 20% Method 9 Every 5 years Semiannual

F.2, F.5, F.8, F.11, F.12,
F.13 Particulate Matter 0.02 gr/dscf Method 5 Every 5 years Semiannual

F.3, F.7, F.10,

F.12, F.13 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Covers and
Enclosures Whenever
Process Equipment is

Operating Semiannual

Conditions

F.1. Holcim shall operate and maintain baghouse(s) to control emi ssions from the following coal and coke handling equipment (ARM 17.8.752):

a. Screw conveyor from the coal/coke crusher to the bucket elevator;

b. “Raw” coke storage silo, 290-ton;

d. Coke storage silo;

e. Two diverter valves;

f. Hammermill;

g. Bucket elevator;

h. Coal storage silo;

i. Belt conveyor with weighing system at the base of the “raw” coke storage silo;

j. Coke grinding mill; and

k. “Fine” coke storage silo, 220-ton.

F.2. Holcim shall not cause or authorize to be disch arged into the atmosphere from the coal and coke handling baghouse(s):

a. Particulate matter in excess of 0.02 grains per dry standard cubic foot (gr/dscf) (ARM 17.8.752); and

b. Visible emissions that exhibit an opacity of 20% or greater averaged over 6 consecutive minutes (ARM 17.8.304).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 14 F.3. When process equipment is operating, Holcim shall use and maintain, as they were intended, conveyor covers, transfer point covers, or st ructural enclosures surrounding process equipment (ARM 17.8.749).

Compliance Demonstration

F.4. Holcim shall monitor compliance with the 20% opacity limit in contained in Section III.F.2 by performing a Method 9 test once every 5 years or according to another testing/monitoring schedule as may be approved by the Department . The test methods and procedures shall be
conducted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106 and ARM 17.8.1213).

F.5. Holcim shall monitor compliance with the pa rticulate emission limitation in Section III.F.2 by performing a Method 5 test or another test method approved by the Department once every 5 years or according to another testing/monitoring schedule as may be approved by the Department. The test methods and procedures shall be conduc ted in accordance with the Montana Source Test Protocol and Procedures Manual (A RM 17.8.106 and ARM 17.8.1213).

F.6. Holcim shall monitor compliance with S ection III.F.1 by inspecting and maintaining the baghouse(s) in accordance with Appendix E of this permit (ARM 17.8.1213).

F.7. Holcim shall monitor compliance with Sec tion III.F.3 by documenting that conveyor covers, transfer point covers, or structural enclosur es surrounding process equipment were maintained and in place during operation of process equipment. The records shall include all repair and maintenance activity to all conveyor covers, transfer point covers, or structural enclosures. The records must include, but are not limited to, the date, time, and action(s) taken for repair and maintenance (ARM 17.8.1213).

Recordkeeping

F.8. All compliance source test recordkeeping shall be performed in accordance with the test method used and the Montana Source Test Protocol and Procedures Manual, shall be maintained on site, and shall be submitted to the Department upon request (ARM 17.8.106 and ARM 17.8.1212).

F.9. Holcim shall maintain records of all in spection and maintenance activities performed on the baghouse in accordance with the requirements in Appendix E of this permit. All inspection and maintenance records must be available to the Depa rtment for inspection and must be submitted to the Department upon request (ARM 17.8.1212).

F.10. Holcim shall maintain the records required by Section III.F.7 on site and submit the information to the Department upon request (ARM 17.8.1212).

Reporting

F.11. Any compliance source test reports must be submitted in accordance with the Montana Source
Test Protocol and Procedures Manua l (ARM 17.8.106 and ARM 17.8.1212).

F.12. The annual compliance certification required by Section V.B must contain a certification statement for the above applicable requirements (ARM 17.8.1212).

F.13. The semiannual monitoring report shall provide (ARM 17.8.1212):

a. A summary of the results of any compliance test conducted during the last reporting period;OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 15 b. Certification that the baghouse(s) were ope rated, inspected, and maintained as required by Sections III.F.1 and III.F.6; and c. Certification that the documentation required in Section III.F.7 was maintained.

G. Emission Unit – EU021 Kiln

Condition(s) Pollutant/Parameter Permit Limit Compliance Demonstration Method Frequency Reporting Requirements
G.1, G.13, G.25, G.27, G.31, G.33, G.34, G.35 Opacity 20% Continuous
Monitor Ongoing Semiannual

G.2, G.14, G.26, G.33, G.34, G.35 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Operation and
Maintenance of
ESP Whenever
Process Equipment is

Operating Semiannual

G.3, G.15, G.27, G.31, G.33, G.34,
G.35 Particulate Matter 0.77 lb/ton of
Clinker Method 5 Annually Semiannual

G.4, G.16, G.27, G.31, G.33, G.34,
G.35 Sulfur Dioxide As Allowed in
ARM 17.8.322(6)(c) Method 6 Every 5 years Semiannual

G.5, G.17, G.27, G.28, G.29, G.31, G.33, G.34,
G.35 Sulfur Dioxide 124 lb/hr averaged over any rolling 30- Day Period Continuous
Monitor Ongoing Semiannual

G.6, G.18, G.28, G.33, G.34, G.35 Fuel Usage 100% Natural Gas, 100% Coal, 100%

Coke, or Any
Combination of

These Fuels Recordkeeping Monthly Semiannual

G.7, G.19, G.28, G.33, G.34, G.35 Clinker Operational Limit 425,000 tons/rolling
12-Month Period Recordkeeping Monthly Semiannual

Method 23 Every 30
Months Semiannual G.8, G.20, G.27, G.28, G.31, G.32, G.33, G.34,
G.35 Dioxins/Furans 0.20 or 0.40 ng per
dscm Corrected to

7% Oxygen— depending on avg. temp of source tests Inspection of
Combustion Components Annual Annual

G9, G.21, G.29, G.32, G.33, G.34,
G.35 Operational Limit Inlet Temperatures
to PMCD Continuous
Monitor Ongoing Semiannual

G.10, G.22, G.27, G28, G.29, G.31, G.33, G.34,
G.35 Nitrogen Oxide 1,568 lb/hr averaged over any rolling 30- Day Period Continuous
Monitor Ongoing Semiannual

G.11, G.23, G.29, G.33, G.34, G.35 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Covers and
Enclosures Whenever
Process Equipment is

Operating Semiannual

G.12, G.24, G.30, G.34,
G.35 PM 10 CAM Plan CAM Plan Appendix F CAM Plan Appendix F Ongoing SemiannualOP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 16 Conditions

G.1. Holcim shall not cause or authorize emissions to be discharged into the outdoor atmosphere from any source installed after November 23, 1968, that exhibits an opacity of 20% or greater averaged over 6 consecutive minutes (ARM 17.8.304(2)).

G.2. Holcim shall operate and maintain an electrost atic precipitator (ESP) to control kiln emissions (ARM 17.8.749).

G.3. Particulate emissions from the kiln are limited to 0.77 pound per ton (lb/ton) of clinker produced (ARM 17.8.749).

G.4. Holcim shall comply with the sulfur in fuel rule (ARM 17.8.322(6)(c)).

G.5. Holcim shall not cause or authorize to be di scharged into the atmosphere from the kiln any gases that contain sulfur dioxide (SO 2 ) in excess of 124 pounds per hour (lb/hr) averaged over any rolling 30-day period (ARM 17.8.749).

G.6. In the cement kiln, Holcim is authorized to burn up to 100% natural gas, up to 100% coal, up to 100% coke, or any combination of these fuels within the previously stated limits (ARM 17.8.749).

G.7. Holcim shall limit kiln production to 425,000 tons of clinker during any rolling 12-month period (ARM 17.8.749).

G.8. Holcim shall not cause to be discharged into the atmosphere from the kiln any gases that contain
dioxins and furans in excess of:

a. 0.20 ng per dscm (8.7x10 -11 gr/dscf)(TEQ) corrected to 7% oxygen; or

b. 0.40 ng per dscm (1.7x10 -10 gr/dscf) (TEQ) corrected to 7% oxygen, when the average of the performance test run average temperatures at the inlet to the particulate matter control device
is 204 o C (400 o F) or less (40 CFR 63.1343).

G.9. Holcim shall operate the kiln su ch that the temperature of the gas at the inlet of the kiln particulate matter control device (PMCD) does not exceed the appropriate temperature limit specified in 40 CFR 63.1344(b), as applicable (40 CFR 63.1344 and 40 CFR 63.6).

G.10. Holcim shall not cause or authorize to be di scharged into the atmosphere from the kiln any gases
that contain NO

x in excess of 1,568 lb/hr averaged over any rolling 30-day period (ARM 17.8.749).

G.11. When process equipment is operating, Holcim shall use and maintain, as they were intended, conveyor covers, transfer point covers, or st ructural enclosures surrounding process equipment (ARM 17.8.749).

G.12. Holcim shall provide a reasonable assurance of compliance with the emission limitations or standards for the operation of the emitting unit by following the Compliance Assurance Monitoring (CAM) plan contained in Appendix F of this permit (ARM 17.8.1504).

Compliance Demonstration

G.13. Within 180 days after Permit #OP0982-01 beco mes final, Holcim shall monitor compliance with Section III.G.1 by installing, calibrating, opera ting, and maintaining a Continuous Opacity Monitoring System (COMS) in accordance with Appendix B to 40 CFR 60, Performance Specification 1. In addition, Holcim shall insp ect and audit the COMS annually, using neutralOP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 17 density filters. Holcim shall conduct these audits using the applicable procedures and forms in
the EPA Technical Assistance Document: Perform ance Audit Procedures for Opacity Monitors (EPA-450/4-92-010, April 1992) (ARM 17.8.1213).

G.14. Holcim shall monitor compliance with Secti on III.G.2 by inspecting and maintaining the ESP in accordance with Appendix E of this permit (ARM 17.8.1213).

G.15. Holcim shall monitor compliance with Secti on III.G.3 by annually conducting a Method 5 test or another test method approved by the Department . The test methods and procedures shall be
conducted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106 and ARM 17.8.1213).

G.16. Holcim shall monitor compliance with Section III.G.4 by conducting a Method 6 test or another test method approved by the Department once every 5 years. The test methods and procedures
shall be conducted in accordance with the Mont ana Source Test Protocol and Procedures Manual (ARM 17.8.106 and ARM 17.8.1213).

G.17. Holcim shall monitor compliance with Secti on III.G.5 by documenting, by day, the lb/hr amount
of SO 2 emissions discharged into the at mosphere from the kiln. Total SO 2 emissions shall be
calculated from 7:00 a.m. to 7:00 a.m. on a da ily basis and averaged over 30-day rolling time periods. In addition, Holcim shall monitor compliance with Section III.G.5 by calibrating, maintaining, and operating Continuous Emissi on Monitoring System (CEM) monitors. The CEMs must be operated while the kiln is operating and must measure the SO 2 emissions, including the volumetric flow rate. These CEMs shall complete one cycle of operation (sampling, analyzing, and data recording) for each successive 15-minute period. The performance specification procedures conducted by Holcim must conform to 40 CFR part 60, Appendix B, Specification 2 and 6 and be appr oved by the Department. On-going quality assurance requirements must conform to 40 CFR Part 60, Appendix F (ARM 17.8.749 and ARM 17.8.1213).

G.18. Holcim shall maintain a log of the daily amount of coal, natural gas, and coke used in the kiln to demonstrate compliance with the limit in Section III. G.6. The log must be maintained on site and must be submitted to the Depart ment upon request (ARM 17.8.1213).

G.19. Holcim shall document, by month, the amount of clinker produced in the kiln. By the 25 th day of each month, Holcim shall total the amount of c linker produced during the previous month. The monthly information will be used to verify compliance with the rolling 12-month limitation
contained in Section III.G.7. The information for each of the previous months shall be submitted along with the annual emission inventory (ARM 17.8.749 and ARM 17.8.1213).

G.20. Holcim shall monitor compliance with Sec tion III.G.8 by conducting a Method 23 (40 CFR 60, Appendix A) performance test every 30 months. Ho lcim shall repeat the performance test for the kiln within 90 days of initiating any significant ch ange in the feed or fuel from that used in the previous performance test (40 CFR 63.1349 and ARM 17.8.1213). In addition, Holcim shall conduct an inspection of the components of the co mbustion system of the kiln at least once per year (40 CFR 63.1350 and ARM 17.8.1213).

G.21. Holcim shall monitor compliance with Secti on III.G.9 by calibrating, maintaining, and operating a monitor to record the temperature of th e exhaust gases from the kiln for monitoring
Dioxin/Furan emissions. The calibration of a ll thermocouples and other temperature sensors required by 40 CFR 63.1350 shall be verified at least once every 3 months (40 CFR 63.1350 and ARM 17.8.1213).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 18 G.22. Holcim shall monitor compliance with Secti on III.G.10 by documenting, by day, the lb/hr amount
of NO

x emissions discharged into the atmosphere from the kiln. Total NO

x emissions shall be calculated from 7:00 a.m. to 7:00 a.m. on a daily basis and averaged over rolling 30-day time periods (ARM 17.8.749 and 17.8.1213). In addition, Holcim shall monitor compliance with Section III.G.10 by calibrating, maintaining, a nd operating CEM monitors. The CEMS must be operated while the kiln is operating and must measure the NO

x emissions, including the volumetric flow rate. These CEMs shall complete one cycle of operation (sampling, analyzing, and data recording) for each successive 15-mi nute period. The performance specification procedures conducted by Holcim must conform to 40 CFR par 60, Appendix B, Specification 2 and 6 and be approved by the Department. On-going quality assurance requirements must conform to 40 CFR Part 60, Appendix F (ARM 17.8.1213).

G.23. Holcim shall monitor compliance with Sec tion III.G.11 by documenting that conveyor covers, transfer point conveyors, or structural enclos ures surrounding process equipment were maintained and in place during operation of process equipment. The records shall include all repair and maintenance activity to all conveyor covers, transfer point covers, or structural enclosures. The records must include, but are not limited to, the date, time, and action(s) taken for repair and maintenance (ARM 17.8.1213).

G.24. Holcim shall monitor compliance with Secti on III.G.12 by monitoring emissions according to the CAM Plan contained in Appendix F of this permit (ARM 17.8.1503 and ARM 17.8.1213).

Recordkeeping

G.25. Holcim shall maintain a file of all m easurements from the COMS, and performance testing measurements; all COMS performance evaluations ; all COMS or monitoring device calibration checks and audits; and adjustments and mainte nance performed on these systems or devices, recorded in a permanent form suitabl e for inspection. The file shall be retained on site for at least 5 years following the date of such measurements and reports. Holcim shall supply these records to the Department upon request (ARM 17.8.1212).

G.26. Holcim shall maintain records of all insp ection and maintenance activities performed on the ESP in accordance with Appendix E of this permit. All inspection and maintenance records must be
maintained on site and must be submitted to the Department upon request (ARM 17.8.1212).

G.27. All compliance source test recordkeeping shall be performed in accordance with the test method used and the Montana Source Test Protocol and Procedures Manual, shall be maintained on site and must be submitted to the Department upon request (ARM 17.8.106 and ARM 17.8.1212).

G.28. Holcim shall maintain records as required by Sections III.G.17, III.G.18, III.G.19, III.G.20, III.G.22, and III.G.23 on site and submit the information to the Department upon request (ARM 17.8.1212).

G.29. Holcim shall maintain calibration records as required by Sections III.G.17, III.G.21, and III.G.22
on site and submit the information to th e Department upon request (ARM 17.8.1212).

G.30. Holcim shall maintain CAM applicable reco rds in accordance with 40 CFR Part 64 and the CAM Plan contained in Appendix F of this permit (ARM 17.8.1212 and 40 CFR 64).

Reporting

G.31. Any compliance source test reports must be submitted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 19 G.32. Holcim shall submit a summary report semiannua lly, which contains the information specified in 40 CFR 63.10(e)(3)(vi). In addition, the summary report shall include:

a. All exceedances of maximum control device inlet gas temperature limits;

b. All failures to calibrate thermocouples and other temperature sensors required by 40 CFR 63.1350;

c. The results of any combustion system component inspections conducted within the reporting period; and

d. All failures to comply with any provision of the operation and maintenance plan (40 CFR 63.1354).

G.33. If any action taken by Holcim during a startup, shutdown, or malfunction is not consistent with the procedures specified in the affected source’s startup, shutdown, and malfunction plan, Holcim
shall record the actions taken for that event and shall report such actions within 2 working days after commencing actions inconsistent with the pl an, followed by a letter within 7 working days after the end of the event (40 CFR 63.6(e)(3)).

G.34. The annual compliance certification required by Section V.B must contain a certification statement for the above applicable requirements (ARM 17.8.1212).

G.35. The semiannual reporting shall provide (ARM 17.8.1212):

a. A summary of the results of any compliance test conducted during the last reporting period;

b. Certification that the ESP was operated, in spected, and maintained as required by Sections III.G.2 and III.G.14;

c. Certification that the COMS was installed, calibrated, operated, and maintained as required by Section III.G.13.

d. Certification that the tests required in Sections III.G.15, III.G.16, and III.G.20 were conducted;

e. Certification that the documents required in Sections III.G.17, III.G.18, III.G.19, III.G.20, III.G.21, III.G.22, III.G.23, III.G.25, and III.G.26 were maintained;

f. A summary of the amount of post-consumer recycled glass used in the kiln for the semiannual period;

g. A summary of the amount of clinker produced for the semiannual period;

h. Annual certification that the written report requi red in Section III.G.32 was submitted; and

i. Certification that the CAM Plan contained in Appendix F of this permit was followed.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 20 Kiln Alternate Operating Scenario #1 Firing Post-Consumer Recycled Container Glass

The use of post-consumer recycled container glass as a ra w material substitute in the cement kiln shall be considered an alternative-operating scenario pursuan t to ARM 17.8.1215. When the revisions to ARM 17.8.316, adopted by the Board of Environmental Review and effective on July 8, 1997, are incorporated into the State Implementation Plan (SIP), the appli cability of the version of ARM 17.8.316 currently in the SIP will no longer be federally enforceable a nd this alternative operati ng scenario will no longer be applicable.

Condition(s) Pollutant/Parameter Permit Limit Compliance Demonstration Method Frequency Reporting Requirements
G.36, G.51, G.64, G.66, G.70, G.72, G.73, G.74 Opacity 10% Continuous
Monitor Ongoing Semiannual

G.37, G.51, G.64, G.66, G.70, G.72, G.73, G.74 Opacity 20% Continuous
Monitor Ongoing Semiannual

G.38, G.52, G.65, G.72, G.73, G.74 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Operation and
Maintenance of
ESP Whenever
Process Equipment is

Operating Semiannual

G.39, G.53, G.66, G.70, G.72, G.73,
G.74 Particulate Matter 0.10 gr/dscf of Dry Flue Gas, Adjusted to
12% CO 2 & Calculated (no Auxiliary Fuel Had Been Used) Method 5 As Required by the Department

and Section

III.A.1 Semiannual

G.40, G.53, G.66, G.70, G.72, G.73,
G.74 Particulate Matter 0.77 lb /ton of Clinker Method 5 As Required by the Department

and Section

III.A.1 Semiannual

G.41, G.54, G.66, G.70, G.72, G.73,
G.74 Sulfur Dioxide As Allowed in ARM 17.8.322(6)(c) Method 6 As Required by the Department

and Section

III.A.1 Semiannual

G.42, G.55, G.66, G.67, G.68, G.70, G.72, G.73,
G.74 Sulfur Dioxide 124 lb/hr averaged over any rolling 30- Day Period Continuous
Monitor Ongoing Semiannual

G.43, G.56, G.67, G.72, G.73, G.74 Post-Consumer Recycled Container Glass Operational
Limit 800 tons/rolling 12-
Month Period Recordkeeping When Using
Glass Semiannual

G.44, G.57, G.67, G.72, G.73, G.74 Clinker Operational
Limit 425,000 tons/rolling
12-Month Period Recordkeeping Monthly Semiannual

Method 23 As Required by the Department

and Section

III.A.1 Semiannual G.45, G.58, G.66, G.67, G.70, G71 G.72,

G.73, G.74 Dioxins/Furans 0.20 or 0.40 ng per
dscm Corrected to 7% Oxygen—depending on avg. temp of source

tests Inspection of
Combustion Components Annual Semiannual

G.46, G.59, G.68, G.71, G.72, G.73,
G.74 Operational Limit Inlet Temperatures to
PMCD Continuous
Monitor Ongoing SemiannualOP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 21 G.47, G.60, G.66, G.67, G.68, G.70, G.72, G.73,
G.74 Nitrogen Oxide 1,568 lb/hr averaged over any rolling 30- Day Period Continuous
Monitor Ongoing Semiannual

G.48, G.61, G.67, G.72, G.73, G.74 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Covers and
Enclosures Whenever
Process Equipment is

Operating Annual

G.49, G.62, G.67, G.72, G.73, G.74 Recordkeeping Log Operating
Scenario When Switching from One
Scenario to Another Reporting As Required by the Department Semiannual

G.50, G.63, G.69, G.73,
G.74 PM 10 CAM Plan CAM Plan Appendix F CAM Plan Appendix F Ongoing Semiannual

Conditions

G.36. Holcim shall not cause or authorize to be disch arged into the outdoor atmosphere, emissions that exhibit an opacity of 10% or greater averaged over 6 consecutive minutes (ARM 17.8.316).

G.37. Holcim may not cause or authorize emissions to be discharged into the outdoor atmosphere from any source installed after November 23, 1968, that exhibit an opacity of 20% or greater averaged over 6 consecutive minutes (ARM 17.8.304(2)) (S tate Enforceable Only Until SIP Approval).

G.38. Holcim shall operate and maintain an ESP to control kiln emissions (ARM 17.8.749) (State Enforceable Only Until SIP Approval).

G.39. Holcim shall not cause or authorize to be di scharged into the outdoor atmosphere, particulate matter in excess of 0.10 gr/dscf of dry flue gas, adjusted to 12% carbon dioxide and calculated as if no auxiliary fuel had been used (ARM 17.8.316).

G.40. Particulate matter emissions from the kiln are limited to 0.77 lb/ton of clinker produced (ARM 17.8.749).

G.41. Holcim shall comply with the sulf ur in fuel rule (ARM 17.8.322(6)(c)).

G.42. Holcim shall not cause or authorize to be di scharged into the atmosphere from the kiln any gases
that contain SO 2 in excess of 124 lb/hr averaged over an y rolling 30-day period (ARM 17.8.749).

G.43. Holcim is limited to 800 to ns of post-consumer glass fired in the cement kiln during any rolling 12-month period (ARM 17.8.752).

G.44. Holcim shall limit kiln production to 425,000 tons of clinker during any rolling 12-month period (ARM 17.8.749).

G.45. Holcim shall not cause to be discharged into the atmosphere from the kiln any gases that contain
dioxins and furans in excess of:

a. 0.20 ng per dscm (8.7x10 -11 gr per dscf)(TEQ) corrected to 7% oxygen; or

b. 0.40 ng per dscm (1.7x10-10 gr per dscf) (TEQ) corrected to 7% oxygen, when the average of the performance test run average temperatures at the inlet to the particulate matter control
device is 204 o C (400 o F) or less (40 CFR 63.1343).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 22 G.46. Holcim shall operate the kiln such that the te mperature of the gas at the inlet of the kiln PMCD does not exceed the appropriate temperature limit specified in 40 CFR 63.1344(b), as applicable (40 CFR 63.1344 and 40 CFR 63.6).

G.47. Holcim shall not cause or authorize to be di scharged into the atmosphere from the kiln any gases
that contain NO

x in excess of 1,568 lb/hr averaged over any rolling 30-day period (ARM 17.8.749).

G.48. When process equipment is operating, Holcim shall use and maintain, as they were intended, conveyor covers, transfer point covers, or st ructural enclosures surrounding process equipment (ARM 17.8.749)

G.49. When making a change from one operating scenario to another, Holcim shall contemporaneously record, in a log at the permitted facility, a r ecord of the operating scenario under which the facility is operating (ARM 17.8.1215).

G.50. Holcim shall provide a reasonable assurance of compliance with the emission limitations or standards for the operation of the emitting unit by following the CAM plan contained in Appendix F of this permit (ARM 17.8.1504).

Compliance Demonstration

G.51. Within 180 days after Permit #OP0982-01 beco mes final, Holcim shall monitor compliance with Section III.G.36 and Section III.G.37 by installing, calibrating, operating, and maintaining a COMS in accordance with Appendix B to 40 CFR 60 , Performance Specification 1. In addition, Holcim shall inspect and audit the COMS annually, using neutral density filters. Holcim shall conduct these audits using the applicable proce dures and forms in the EPA Technical Assistance Document: Performance Audit Procedures for Op acity Monitors (EPA-450/4-92-010, April 1992) (ARM 17.8.1213).

G.52. Holcim shall monitor compliance with Secti on III.G.38 by inspecting and maintaining the ESP in accordance with Appendix E of this permit (ARM 17.8.1213).

G.53. Holcim shall monitor compliance with Sec tion III.G.39 and III.G.40 by conducting a Method 5 test or another test method approved by the Department, as required by the Department and Section III.A.1. The test methods and proce dures shall be conducted in accordance with the
Montana Source Test Protocol and Procedur es Manual (ARM 17.8.106 and ARM 17.8.1213).

G.54. Holcim shall monitor compliance with S ection III.G.41 by conducting, as required by the Department, a Method 6 test or another test method approved by the Department. The test methods and procedures shall be conducted in acco rdance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106 and ARM 17.8.1213).

G.55. Holcim shall monitor compliance with Secti on III.G.39 by documenting, by day, the lb/hr amount
of SO 2 emissions discharged into the at mosphere from the kiln. Total SO 2 emissions shall be
calculated from 7:00 a.m. to 7:00 a.m. on a da ily basis and averaged over 30-day rolling time periods. In addition, Holcim shall monitor compliance with Section III.G.39 by calibrating, maintaining, and operating CEM monitors. The CEMs must be operated while the kiln is operating and must measure the SO 2 emissions, including the volumetric flow rate. These CEMs shall complete one cycle of operation (sampli ng, analyzing, and data recording) for each successive 15-minute period. The performance specification procedures conducted by Holcim must conform to 40 CFR par 60, Appendix B, Specification 2 and 6 and be approved by the Department. On-going quality assurance require ments must conform to 40 CFR Part 60, Appendix F (ARM 17.8.749 and ARM 17.8.1213).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 23 G.56. Holcim shall document, by month, the amount of post-consumer recycled container glass used in the kiln. By the 25 th day of each month, Holcim shall total the amount of recycled glass used for the previous month. The monthly information will be used to verify compliance with the rolling
12-month limitation contained in Section III.G.43. The information for each of the previous months shall be submitted along with the a nnual emission inventory (ARM 17.8.749 and ARM 17.8.1213).

G.57. Holcim shall document, by month, the amount of clinker produced in the kiln. By the 25 th day of each month, Holcim shall total the amount of c linker produced during the previous month. The monthly information will be used to verify compliance with the rolling 12-month limitation
contained in Section III.G.44. The informati on for each of the previous months shall be submitted along with the annual emission i nventory (ARM 17.8.749 and ARM 17.8.1213).

G.58. Holcim shall monitor compliance with Sec tion III.G.45 by conducting a Method 23 (40 CFR 60, Appendix A) performance test every 30 months. Ho lcim shall repeat the performance test for the kiln within 90 days of initiating any significant ch ange in the feed or fuel from that used in the previous performance test (40 CFR 63.1349 and ARM 17.8.1213). In addition, Holcim shall conduct an inspection of the components of the co mbustion system of the kiln at least once per year (40 CFR 63.1350 and ARM 17.8.1213).

G.59. Holcim shall monitor compliance with Secti on III.G.46 by calibrating, maintaining, and operating a monitor to record the temperature of th e exhaust gases from the kiln for monitoring
Dioxin/Furan emissions. The calibration of a ll thermocouples and other temperature sensors required by 40 CFR 63.1350 shall be verified at least once every 3 months (40 CFR 63.1350 and ARM 17.8.1213).

G.60. Holcim shall monitor compliance with Secti on III.G.47 by documenting, by day, the lb/hr amount
of NO

x emissions discharged into the atmosphere from the kiln. Total NO

x emissions shall be calculated from 7:00 a.m. to 7:00 a.m. on a daily basis and averaged over rolling 30-day time periods (ARM 17.8.749 and 17.8.1213). In addition, Holcim shall monitor compliance with Section III.G.47 by calibrating, maintaining, and operating CEM monitors. The CEMs must be operated while the kiln is operating and must measure the NO

x emissions, including the volumetric flow rate. These CEMs shall complete one cycle of operation (sampling, analyzing, and data recording) for each successive 15-mi nute period. The performance specification procedures conducted by Holcim must conform to 40 CFR par 60, Appendix B, Specification 2 and 6 and be approved by the Department. On-going quality assurance requirements must conform to 40 CFR Part 60, Appendix F (ARM 17.8.749 and ARM 17.8.1213).

G.61. Holcim shall monitor compliance with Sec tion III.G.48 by documenting that conveyor covers, transfer point conveyors, or structural enclos ures surrounding process equipment were maintained and in place during operation of process equipment. The records shall include all repair and maintenance activity to all conveyor covers, transfer point covers, or structural enclosures. The records must include, but are not limited to, the date, time, and action(s) taken for repair and maintenance (ARM 17.8.1213).

G.62. Holcim shall monitor compliance with Section III. G.49 by recording, in a log, the date and time when Holcim switches to or from using post-consum er recycled glass in the kiln within 24 hours of making a change from one operating scenario to another. The log shall be maintained as a permanent business record for at least 5 years following the activity, sha ll be available to the Department for inspection, and shall be s ubmitted to the Department upon request (ARM 17.8.1213).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 24 G.63. Holcim shall monitor compliance with Secti on III.G.50 by monitoring emissions according to the CAM Plan contained in Appendix F of this permit (ARM 17.8.1503 and ARM 17.8.1213). Recordkeeping

G.64. Holcim shall maintain a file of all m easurements from the COMS, and performance testing measurements; all COMS performance evaluations ; all COMS or monitoring device calibration checks and audits; and adjustments and mainte nance performed on these systems or devices, recorded in a permanent form suitabl e for inspection. The file shall be retained on site for at least 5 years following the date of such measurements and reports. Holcim shall supply these records to the Department upon request (ARM 17.8.1212).

G.65. Holcim shall maintain records of all insp ection and maintenance activities performed on the ESP in accordance with Appendix E of this permit. All inspection and maintenance records must be
maintained on site and must be submitted to the Department upon request (ARM 17.8.1212). G.66. All compliance source test recordkeeping shall be performed in accordance with the test method used and the Montana Source Test Protocol and Procedures Manual, shall be maintained on site and must be submitted to the Department upon request (ARM 17.8.106 and ARM 17.8.1212).

G.67. Holcim shall maintain records as required by Sections III.G.55, III.G.56, III.G.57, III.G.58, III.G.60, III.G.61, and III.G.62 on site and submit the information to the Department upon request (ARM 17.8.1212).

G.68. Holcim shall maintain calibration records as required by Sections III.G.55, III.G.59, and III.G.60
on site and submit the information to th e Department upon request (ARM 17.8.1212).

G.69. Holcim shall maintain CAM applicable reco rds in accordance with 40 CFR Part 64 and the CAM Plan contained in Appendix F of this permit (ARM 17.8.1212 and 40 CFR 64).

Reporting

G.70. Any compliance source test reports must be submitted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106).

G.71. Holcim shall submit a summary report semiannua lly, which contains the information specified in 40 CFR 63.10(e)(3)(vi). In addition, the summary report shall include:

a. All exceedances of maximum control device inlet gas temperature limits;

b. All failures to calibrate thermocouples and other temperature sensors required by 40 CFR 63.1350;

c. The results of any combustion system component inspections conducted within the reporting period; and

d. All failures to comply with any provision of the operation and maintenance plan (40 CFR 63.1354).

G.72. If any action taken by Holcim during a startup, shutdown, or malfunction is not consistent with the procedures specified in the affected source’s startup, shutdown, and malfunction plan, Holcim
shall record the actions taken for that event and shall report such actions within 2 working days after commencing actions inconsistent with the pl an, followed by a letter within 7 working days after the end of the event (40 CFR 63.6(e)(3)).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 25 G.73. The annual compliance certification required by Section V.B must contain a certification statement for the above applicable requirements (ARM 17.8.1212).

G.74. The semiannual reporting shall provide (ARM 17.8.1212):

a. A summary of the results of any compliance test conducted during the last reporting period;

b. Certification that the ESP was operated, insp ected, and maintained as required by Section III.G.38;

c. Certification that the COMS was installed, ca librated, operated, and maintained as required by Section III.G.51.

d. Certification that any tests required in Sections III.G.53, III.G.54, and III.G.58 were conducted;

e. Certification that documents required in Sections III.G.55, III.G.56, III.G.57, III.G.58, III.G.59, III.G.60, III.G.61, III.G.64, and III.G.65 were maintained;

f. A summary of the amount of post-consumer recycled glass used in the kiln for the semiannual period;

g. A summary of the amount of clinker produced for the semiannual period;

h. Annual Certification that the written report re quired in Section III.G.71 was submitted; and

i. Certification that the CAM Plan contained in Appendix F of this permit was followed.

H. Emitting Unit – EU022 Clinker Cooler

Condition(s) Pollutant/Parameter Permit Limit Compliance Demonstration Method Frequency Reporting Requirements
H.1, H.7, H.13,

H.17, H.18,
H.19 Opacity 20% Method 9 Every 5 years Semiannual

H.2, H.8, H.13,

H.17, H.18,
H.19 Particulate Matter E = 55.0P 0.11 – 40 Method 5 Every 5 years Semiannual

H.3, H.9, H.14,

H.18, H.19 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Operation and
Maintenance of Baghouse Whenever
Process Equipment is

Operating Semiannual

H.4, H.10, H.15, H.18,
H.19 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Covers and
Enclosures Whenever
Process Equipment is

Operating Semiannual

H.5, H.11, H.15, H.18,
H.19 Operational Limit 500,000 tons/rolling
12-Month Period
Clinker Handled Recordkeeping Monthly Semiannual

H.6, H.12, H.16, H.18,
H.19 PM 10 CAM Plan CAM Plan Appendix F CAM Plan Appendix F Ongoing Semiannual

Conditions

H.1. Holcim shall not cause or authorize emissions to be discharged into the outdoor atmosphere from any source installed after November 23, 1968, that exhibit an opacity of 20% or greater averaged over 6 consecutive minutes, unless otherwise specified by rule or in this permit (ARM 17.8.304(2)).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 26 H.2. The particulate emissions from process wei ght shall not exceed the value calculated by E =
55.0P 0.11 – 40, where E is the rate of emission in pou nds per hour and P is the process weight rate in tons per hour (ARM 17.8.310).

H.3. Holcim shall operate and maintain a baghou se to control emissions from the emitting unit (ARM 17.8.749).

H.4. When process equipment is operating, Holcim shall use and maintain, as they were intended, conveyor covers, transfer point covers, or st ructural enclosures surrounding process equipment (ARM 17.8.749).

H.5. Holcim shall limit clinker handling to 500, 000 tons during any rolling 12-month period (ARM 17.8.749).

H.6 Holcim shall provide a reasonable assurance of compliance with the emission limitations or standards for the operation of the emitting unit by following the CAM plan contained in Appendix F of this permit (ARM 17.8.1504).

Compliance Demonstration

H.7. Holcim shall monitor compliance with the 20% opacity limit contained in Section III.H.1 by performing a Method 9 test once every 5 years or according to another testing/monitoring schedule as may be approved by the Department . The test methods and procedures shall be
conducted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106 and ARM 17.8.1213).

H.8. Holcim shall monitor compliance with the pa rticulate emission limitation contained in Section III.H.2 by performing a Method 5 test or another test method approved by the Department once every 5 years or according to another testing/m onitoring schedule as may be approved by the Department. The test methods and procedur es shall be conducted in accordance with the
Montana Source Test Protocol and Procedur es Manual (ARM 17.8.106 and ARM 17.8.1213).

H.9. Holcim shall monitor compliance with S ection III.H.3 by inspecting and maintaining the baghouse(s) in accordance with Appendix E of this permit (ARM 17.8.1213).

H.10. Holcim shall monitor compliance with Sec tion III.H.4 by documenting that conveyor covers, transfer point covers, or structural enclosur es surrounding process equipment were maintained and in place during operation of process equipment. The records shall include all repair and maintenance activity to all conveyor covers, transfer point covers, or structural enclosures. The records must include, but are not limited to, the date, time, and action(s) taken for repair and maintenance (ARM 17.8.1213).

H.11. Holcim shall document, by month, the amount of clinker handled. By the 25 th day of each month, Holcim shall total the amount of clinker handled during the previous month. The monthly information will be used to verify compliance with the rolling 12-month limitation contained in
Section III.H.5. The information for each of the previous months shall be submitted along with the annual emission inventory (ARM 17.8.1213).

H.12. Holcim shall monitor compliance with Secti on III.H.6 by monitoring emissions according to the CAM Plan contained in Appendix F of this permit (ARM 17.8.1503 and ARM 17.8.1213).

Recordkeeping

H.13. All compliance source test recordkeeping shall be performed in accordance with the test method used and the Montana Source Test Protocol and Procedures Manual, shall be maintained on site and must be submitted to the Department upon request (ARM 17.8.106 and ARM 17.8.1212).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 27 H.14. Holcim shall maintain records of all in spection and maintenance activities performed on the baghouse in accordance with the requirements in Appendix E of this permit. All inspection and maintenance records must be available to the Depa rtment for inspection and must be submitted to the Department upon request (ARM 17.8.1212).

H.15. Holcim shall maintain records as required by Sections III.H.10 and III.H.11 on site and submit the information to the Department upon request (ARM 17.8.1212).

H.16. Holcim shall maintain CAM applicable reco rds in accordance with 40 CFR Part 64 and the CAM Plan contained in Appendix F of this permit (ARM 17.8.1212 and 40 CFR 64).

Reporting

H.17. Any compliance source test reports must be submitted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106).

H.18. The annual compliance certification required by Section V.B must contain a certification statement for the above applicable requirements (ARM 17.8.1212).

H.19 The semiannual reporting shall provide (ARM 17.8.1212):

a. A summary of the results of any compliance test conducted during the last reporting period;

b. Certification that the baghouse was operated, inspected, and maintained as required by Sections III.H.3 and III.H.9;

c. Certification that the documents required in Section III.H.10 were maintained;

d. A summary of the amount of clinker ha ndled during the semiannual period; and

e. Certification that the CAM Plan contained in Appendix F of this permit was followed.

I. Emitting Unit – EU023 Inside Clinker Transfer from Cooler

Condition(s) Pollutant/Parameter Permit Limit Compliance Demonstration Method Frequency Reporting Requirements

I.1, I.6, I.11, I.14, I.15, I.16 Opacity 20% Method 9 As Required by the Department

and Section

III.A.1 Semiannual

I.2, I.7, I.11, I.14, I.15, I.16 Particulate Matter E = 55.0P 0.11 – 40 Method 5 As Required by the Department

and Section

III.A.1 Semiannual

I.3, I.8, I.12,

I.15, I.16 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Operation and
Maintenance of Baghouse Whenever
Process Equipment is

Operating Semiannual

I.4, I.9, I.13,

I.15, I.16 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Covers and
Enclosures Whenever
Process Equipment is

Operating Semiannual

I.5, I.10, I.13,

I.15, I.16 Operational Limit 500,000 tons/rolling
12-Month Period
Clinker Handled Recordkeeping Monthly SemiannualOP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 28 Conditions

I.1. Holcim shall not cause or authorize emissions to be discharged into the outdoor atmosphere from any source installed after November 23, 1968, that exhibit an opacity of 20% or greater averaged over 6 consecutive minutes, unless otherwise specified by rule or in this permit (ARM 17.8.304(2)).

I.2. The particulate emissions from process wei ght shall not exceed the value calculated by E =
55.0P 0.11 – 40, where E is the rate of emission in pou nds per hour and P is the process weight rate in tons per hour (ARM 17.8.310).

I.3. Holcim shall operate and maintain a baghou se to control emissions from the emitting unit (ARM 17.8.749).

I.4. When process equipment is operating, Holcim shall use and maintain, as they were intended, conveyor covers, transfer point covers, or st ructural enclosures surrounding process equipment (ARM 17.8.749).

I.5. Holcim shall limit clinker handling to 500, 000 tons during any rolling 12-month period (ARM 17.8.749).

Compliance Demonstration

I.6. Holcim shall monitor compliance with the 20% opacity limit contained in Section III.I.1 by performing a Method 9 test as required by the Depart ment and Section III.A.1. The test methods and procedures shall be conducted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106 and ARM 17.8.1213).

I.7. Holcim shall monitor compliance with the pa rticulate emission limitation contained in Section III.I.2 by performing a Method 5 test, or another test method approved by the Department, as required by the Department and Section III.A.1. The test methods and procedures shall be
conducted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106 and ARM 17.8.1213).

I.8. Holcim shall monitor compliance with Section III.I.3 by inspecting and maintaining the baghouse(s) in accordance with Appendix E of this permit (ARM 17.8.1213).

I.9. Holcim shall monitor compliance with Sec tion III.I.4 by documenting that conveyor covers, transfer point covers, or structural enclosur es surrounding process equipment were maintained and in place during operation of process equipment. The records shall include all repair and maintenance activity to all conveyor covers, transfer point covers, or structural enclosures. The records must include, but are not limited to, the date, time, and action(s) taken for repair and maintenance (ARM 17.8.1213).

I.10. Holcim shall document, by month, the amount of clinker handled. By the 25 th day of each month, Holcim shall total the amount of clinker handled during the previous month. The monthly information will be used to verify compliance with the rolling 12-month limitation contained in
Section III.I.5. The information for each of the previous months shall be submitted along with the annual emission inventory (ARM 17.8.1213).

Recordkeeping

I.11. All compliance source test recordkeeping shall be performed in accordance with the test method used and the Montana Source Test Protocol and Procedures Manual, shall be maintained on site and must be submitted to the Department upon request (ARM 17.8.106 and ARM 17.8.1212).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 29 I.12. Holcim shall maintain records of all inspection and maintenance activities performed on the baghouse in accordance with the requirements in Appendix E of this permit. All inspection and maintenance records must be available to the Depa rtment for inspection and must be submitted to the Department upon request (ARM 17.8.1212).

I.13. Holcim shall maintain records as required by Sections III.I.9 and III.I.10 on site and submit the information to the Department upon request (ARM 17.8.1212).

Reporting

I.14. Any compliance source test reports must be submitted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106).

I.15. The annual compliance certification required by Section V.B must contain a certification statement for the above applicable requirements (ARM 17.8.1212).

I.16. The semiannual reporting shall provide (ARM 17.8.1212):

a. A summary of the results of any compliance test conducted during the last reporting period;

b. Certification that the baghouse was operated, inspected, and maintained as required by Sections III.I.3 and III.I.8;

c. Certification that the documents require d in Section III.I.9 were maintained; and

d. A summary of the amount of clinker handled during the semiannual period.

J. Emitting Units – EU024 Clinker Storage Silo s #1 and #2 & Interstice Bin Load/Unload EU027 Outside Clinker Bins Loading
EU033 Clinker Transfer to #2 Finish Mill & #3 Finish Mill
EU035 Clinker Transfer to #4 Finish Mill EU041 Gypsum Unloading and Transfer EU043 Outside Clinker Transfer to Reclaim Building

Condition(s) Pollutant/Parameter Permit Limit Compliance Demonstration Method Frequency Reporting Requirements

Method 9 As Required by the Department

and Section

III.A.1 Semiannual J.1, J.5, J.9, J.10, J.12, J.13,
J.14 Opacity 20% Operation and
Maintenance of

a Baghouse Whenever
Process Equipment is

Operating Semiannual

Method 5 As Required by the Department

and Section

III.A.1 Semiannual J.2, J.6, J.9, J.10, J.12, J.13,
J.14 Particulate Matter E = 55.0P 0.11 - 40 Operation and
Maintenance of

a Baghouse Whenever
Process Equipment is

Operating Semiannual

J.3, J.7, J.11,

J.13, J.14 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Covers and
Enclosures Whenever
Process Equipment is

Operating Semiannual

J.4, J.8, J.11,

J.13, J.14 Operational Limit 500,000 tons/rolling
12-Month Period
Clinker Handled Recordkeeping Monthly SemiannualOP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 30 Conditions

J.1. Holcim shall not cause or authorize emissions to be discharged into the outdoor atmosphere from any source installed after November 23, 1968, that exhibit an opacity of 20% or greater averaged over 6 consecutive minutes, unless otherwise specified by rule or in this permit (ARM 17.8.304(2)).

J.2. The particulate emissions from process wei ght shall not exceed the value calculated by E =
55.0P 0.11 – 40, where E is the rate of emission in pou nds per hour and P is the process weight rate in tons per hour (ARM 17.8.310).

J.3. When process equipment is operating, Holcim shall use and maintain, as they were intended, conveyor covers, transfer point covers, or st ructural enclosures surrounding process equipment (ARM 17.8.749).

J.4. Holcim shall limit clinker handling to 500, 000 tons during any rolling 12-month period (ARM 17.8.749).

Compliance Demonstration

J.5. Holcim shall monitor compliance with S ection III.J.1 by operating, and inspecting and maintaining the baghouse(s) in accordance with A ppendix E of this permit. In addition, as required by the Department and Section III.A.1, Holcim shall perform a Method 9 test in
accordance with the Montana Source Test Protoc ol and Procedures Manual (ARM 17.8.106 and ARM 17.8.1213).

J.6. Holcim shall monitor compliance with S ection III.J.2 by operating, and inspecting and maintaining the baghouse(s) in accordance with A ppendix E of this permit. In addition, as required by the Department and Section III.A.1, Ho lcim shall perform a Method 5 test or another test method approved by the Department. The t est methods and procedures shall be conducted in
accordance with the Montana Source Test Protoc ol and Procedures Manual (ARM 17.8.106 and ARM 17.8.1213).

J.7. Holcim shall monitor compliance with Sec tion III.J.3 by documenting that conveyor covers, transfer point covers, or structural enclosur es surrounding process equipment were maintained and in place during operation of process equipment. The records shall include all repair and maintenance activity to all conveyor covers, transfer point covers, or structural enclosures. The records must include, but are not limited to, the date, time, and action(s) taken for repair and maintenance (ARM 17.8.1213).

J.8. Holcim shall document, by month, the amount of clinker handled. By the 25 th day of each month, Holcim shall total the amount of clinker handled during the previous month. The monthly information will be used to verify compliance with the rolling 12-month limitation contained in
Section III.J.4. The information for each of the previous months shall be submitted along with the annual emission inventory (ARM 17.8.1213).

Recordkeeping

J.9. All compliance source test recordkeeping shall be performed in accordance with the test method used and the Montana Source Test Protocol and Procedures Manual, shall be maintained on site and must be submitted to the Department upon request (ARM 17.8.106 and ARM 17.8.1212).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 31 J.10. Holcim shall maintain records of all in spection and maintenance activities performed on the baghouse(s) in accordance with the requirements in Appendix E of this permit. All inspection and maintenance records must be available to the Department for inspection and must be submitted to the Department upon request (ARM 17.8.1212).

J.11. Holcim shall maintain records as required by Sections III.J.7 and III.J.8 on site and submit the information to the Department upon request (ARM 17.8.1212).

Reporting

J.12. Any compliance source test reports must be submitted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106).

J.13. The annual compliance certification required by Section V.B must contain a certification statement for the above applicable requirements (ARM 17.8.1212).

J.14. The semiannual reporting shall provide (ARM 17.8.1212):

a. A summary of the results of any compliance test conducted during the last reporting period;

b. Certification that the baghouse was operated, in spected, and maintained as required by Section III.J.6;

c. Certification that the documents required in Section III.J.7 were maintained; and

d. A summary of clinker handled during the semiannual period.

K. Emitting Unit – EU025 Cement Kiln Dust Silo Loading

Condition(s) Pollutant/Parameter Permit Limit Compliance Demonstration Method Frequency Reporting Requirements

K.1, K.5, K.9,

K.12, K.13,
K.14 Opacity 20% Method 9 As Required by the Department

and Section

III.A.1 Semiannual

K.2, K.6, K.9,

K12, K13,
K.14 Particulate Matter E = 55.0P 0.11 - 40 Method 5 As Required by the Department

and Section

III.A.1 Semiannual

K.3, K.7, K.10,

K.13, K.14 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Operation and
Maintenance of Baghouse Whenever
Process Equipment is

Operating Semiannual

K.4, K.8, K.11,

K.13, K.14 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Covers and
Enclosures Whenever
Process Equipment is

Operating Semiannual

Conditions

K.1. Holcim shall not cause or authorize emissions to be discharged into the outdoor atmosphere from any source installed after November 23, 1968, that exhibit an opacity of 20% or greater averaged over 6 consecutive minutes, unless otherwise specified by rule or in this permit (ARM 17.8.304(2)).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 32 K.2. The particulate emissions from process wei ght shall not exceed the value calculated by E =
55.0P 0.11 – 40, where E is the rate of emission in pou nds per hour and P is the process weight rate in tons per hour (ARM 17.8.310).

K.3. Holcim shall operate and maintain a baghou se to control emissions from the emitting unit (ARM 17.8.749).

K.4. When process equipment is operating, Holcim shall use and maintain, as they were intended, conveyor covers, transfer point covers, or st ructural enclosures surrounding process equipment (ARM 17.8.749).

Compliance Demonstration

K.5. Holcim shall monitor compliance with the 20% opacity limit contained in Section III.K.1 by performing a Method 9 test as required by the Depart ment and Section III.A.1. The test methods and procedures shall be conducted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106 and ARM 17.8.1213).

K.6. Holcim shall monitor compliance with the pa rticulate emission limitation contained in Section III.K.2 by performing a Method 5 test, or another test method approved by the Department, as required by the Department and Section III.A.1. The test methods and procedures shall be
conducted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106 and ARM 17.8.1213).

K.7. Holcim shall monitor compliance with S ection III.K.3 by inspecting and maintaining the baghouse in accordance with Appendix E of this permit (ARM 17.8.1213).

K.8. Holcim shall monitor compliance with Sec tion III.K.4 by documenting that conveyor covers, transfer point covers, or structural enclosur es surrounding process equipment were maintained and in place during operation of process equipment. The records shall include all repair and maintenance activity to all conveyor covers, transfer point covers, or structural enclosures. The records must include, but are not limited to, the date, time, and action(s) taken for repair and maintenance (ARM 17.8.1213).

Recordkeeping

K.9. All compliance source test recordkeeping shall be performed in accordance with the test method used and the Montana Source Test Protocol and Procedures Manual, shall be maintained on site and must be submitted to the Department upon request (ARM 17.8.106 and ARM 17.8.1212).

K.10. Holcim shall maintain records of all in spection and maintenance activities performed on the baghouse in accordance with the requirements in Appendix E of this permit. All inspection and maintenance records must be available to the Depa rtment for inspection and must be submitted to the Department upon request (ARM 17.8.1212).

K.11. Holcim shall maintain records as required by S ection III.K.8 on site and submit the information to the Department upon request (ARM 17.8.1212).

Reporting

K.12. Any compliance source test reports must be submitted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 33 K.13. The annual compliance certification required by Section V.B must contain a certification statement for the above applicable requirements (ARM 17.8.1212).

K.14. The semiannual reporting shall provide (ARM 17.8.1212):

a. A summary of the results of any compliance test conducted during the last reporting period;

b. Certification that the baghouse was operated, inspected, and maintained as required by Sections III.K.3 and III.K.6; and

c. Certification that the documents required in Section III.K.7 and III.K.8 were maintained.

L. Emitting Units – EU026 Cement Kiln Dust Silo Unloading to Truck EU028-031 Outside Clinker Storage Silos #1-#4 EU038 Dust Discharge Spout between Kiln and Precipitator EU040 Import Clinker Unloading and Transfer EU059 Post Consumer Recycled Glass Transfers EU060 Overflow Gypsum Transfer to Ground EU061 Overflow Gypsum Transfer to Reclaim Building

Condition(s) Pollutant/Parameter Permit Limit Compliance Demonstration Method Frequency Reporting Requirements

L.1, L.4, L.7, L.9, L.10, L.11 Opacity 20% Method 9 As Required by the Department

and Section

III.A.1 Semiannual

L.2, L.5, L.7, L.9, L.10, L.11 Particulate Matter E = 55.0P 0.11 - 40 Method 5 As Required by the Department

and Section

III.A.1 Semiannual

L.3, L.6, L.8,

L.10, L.11 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Covers and
Enclosures Whenever
Process Equipment is

Operating Semiannual

Conditions

L.1. Holcim shall not cause or authorize emissions to be discharged into the outdoor atmosphere from any source installed after November 23, 1968, that exhibit an opacity of 20% or greater averaged over 6 consecutive minutes, unless otherwise specified by rule or in this permit (ARM 17.8.304(2)).

L.2. The particulate emissions from process wei ght shall not exceed the value calculated by E =
55.0P 0.11 – 40, where E is the rate of emission in pou nds per hour and P is the process weight rate in tons per hour (ARM 17.8.310).

L.3. When process equipment is operating, Holcim shall use and maintain, as they were intended, conveyor covers, transfer point covers, or st ructural enclosures surrounding process equipment (ARM 17.8.749).

Compliance Demonstration

L.4. Holcim shall monitor compliance with the 20% opacity limit contained in Section III.L.1 by performing a Method 9 test as required by the Depart ment and Section III.A.1. The test methods and procedures shall be conducted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106 and ARM 17.8.1213).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 34 L.5. Holcim shall monitor compliance with the pa rticulate emission limitation contained in Section III.L.2 by performing a Method 5 test, or another test method approved by the Department, as required by the Department and Section III.A.1. The test methods and procedures shall be
conducted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106 and ARM 17.8.1213).

L.6. Holcim shall monitor compliance with Sec tion III.L.3 by documenting that conveyor covers, transfer point covers, or structural enclosur es surrounding process equipment were maintained and in place during operation of process equipment. The records shall include all repair and maintenance activity to all conveyor covers, transfer point covers, or structural enclosures. The records must include, but are not limited to, the date, time, and action(s) taken for repair and maintenance (ARM 17.8.1213).

Recordkeeping

L.7. All compliance source test recordkeeping shall be performed in accordance with the test method used and the Montana Source Test Protocol and Procedures Manual, shall be maintained on site and must be submitted to the Department upon request (ARM 17.8.106 and ARM 17.8.1212).

L.8. Holcim shall maintain records as required by S ection III.L.6 on site and submit the information to the Department upon request (ARM 17.8.1212).

Reporting

L.9. Any compliance source test reports must be submitted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106).

L.10. The annual compliance certification required by Section V.B must contain a certification statement for the above applicable requirements (ARM 17.8.1212).

L.11. The semiannual reporting shall provide (ARM 17.8.1212):

a. A summary of the results of any compliance test conducted during the last reporting period; and

b. Certification that the document required in Section III.L.6 was maintained.

M. Emission Unit – EU032 #2 Finish Mill

Condition(s) Pollutant/Parameter Permit Limit Compliance Demonstration Method Frequency Reporting Requirements
M.1, M.6, M.12, M.16, M.17, M.18 Opacity 10% Method 9 Every 5 years Semiannual

M1, M.7, M.12, M.16, M.17, M.18 Particulate Matter 0.02 gr/dscf Method 5 Every 5 years Semiannual

M.2, M.8, M.13, M.17,
M.18 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Operation and
Maintenance of Baghouse Whenever
Process Equipment is

Operating Semiannual

M.3, M.9, M.14, M.17,
M.18 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Covers and
Enclosures Whenever
Process Equipment is

Operating Semiannual

M.4, M.10, M.14, M.17,
M.18 Operational Limit 245,280 tons/rolling
12-Month Period
Clinker Handled Recordkeeping Monthly Semiannual

M.5, M.11, M.15, M.17,
M.18 PM 10 CAM Plan CAM Plan Appendix F CAM Plan Appendix F Ongoing SemiannualOP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 35 Conditions

M.1. Holcim shall not cause or authorize to be disch arged into the atmosphere, from the Finish Mill #2 baghouse:

a. Particulate matter in excess of 0.02 gr/dscf (ARM 17.8.752); and

b. Visible emissions that exhibit an opacity of 10% or greater averaged over 6 consecutive minutes, as required by 40 CFR Part 60, Subpart F (ARM 17.8.340).

M.2. Holcim shall operate and maintain baghouse(s) to control emissions from the Finish Mill #2 sources listed below (ARM 17.8.752):

a. A replacement air slide;

b. The clinker/gypsum feed belt via a booster fan;

c. The Finish Mill #2;

d. The bucket elevator; and

e. The product separator.

M.3. When process equipment is operating, Holcim shall use and maintain, as they were intended, conveyor covers, transfer point covers, or st ructural enclosures surrounding process equipment (ARM 17.8.749).

M.4. Holcim shall limit clinker handling to 245, 280 tons during any rolling 12-month period (ARM 17.8.749).

M.5. Holcim shall provide a reasonable assurance of compliance with the emission limitations or standards for the operation of the emitting unit by following the CAM plan contained in Appendix F of this permit (ARM 17.8.1504).

Compliance Demonstration

M.6. Holcim shall monitor compliance with the 10% opacity limit contained in Section III.M.1.b by performing a Method 9 test once every 5 years or according to another testing/monitoring schedule as may be approved by the Department . The test methods and procedures shall be
conducted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106 and ARM 17.8.1213).

M.7. Holcim shall monitor compliance with the par ticulate emission limitation in Section III.M.1.a by performing a Method 5 test or another test method approved by the Department once every 5 years or according to another testing/monitoring schedule as may be approved by the Department. The test methods and procedures shall be conduc ted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8. 106, ARM 17.8.340, and ARM 17.8.1213).

M.8. Holcim shall monitor compliance with S ection III.M.2 by inspecting and maintaining the baghouse(s) in accordance with Appendix E of this permit (ARM 17.8.1213).

M.9. Holcim shall monitor compliance with Sec tion III.M.3 by documenting that conveyor covers, transfer point covers, or structural enclosur es surrounding process equipment were maintainedOP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 36 and in place during operation of process equipment. The records shall include all repair and maintenance activity to all conveyor covers, transfer point covers, or structural enclosures. The records must include, but are not limited to, the date, time, and action(s) taken for repair and maintenance (ARM 17.8.1213).

M.10. Holcim shall document, by month, the amount of clinker handled. By the 25 th day of each month, Holcim shall total the amount of clinker handled during the previous month. The monthly information will be used to verify compliance with the rolling 12-month limitation contained in Section III.M.4. The information for each of the previous months shall be submitted along with the annual emission inventory (ARM 17.8.1213).

M.11. Holcim shall monitor compliance with Secti on III.M.5 by monitoring emissions according to the CAM Plan contained in Appendix F of this permit (ARM 17.8.1503 and ARM 17.8.1213).

Recordkeeping

M.12. All compliance source test recordkeeping shall be performed in accordance with the test method used and the Montana Source Test Protocol and Procedures Manual, shall be maintained on site, and shall be submitted to the Department upon request (ARM 17.8.106 and ARM 17.8.1212).

M.13. Holcim shall maintain records of all inspection and maintenance activities performed on the baghouse in accordance with the requirements in Appendix E of this permit. All inspection and maintenance records must be available to the Depa rtment for inspection and must be submitted to the Department upon request (ARM 17.8.1212).

M.14. Holcim shall maintain the records required by Sections III.M.9 and III.M.10 on site and submit the information to the Department upon request (ARM 17.8.1212).

M.15. Holcim shall maintain CAM applicable reco rds in accordance with 40 CFR Part 64 and the CAM Plan contained in Appendix F of this permit (ARM 17.8.1212 and 40 CFR 64).

Reporting

M.16. Any compliance source test reports must be submitted in accordance with the Montana Source
Test Protocol and Procedures Manua l (ARM 17.8.106 and ARM 17.8.1212).

M.17. The annual compliance certification required by Section V.B must contain a certification statement for the above applicable requirements (ARM 17.8.1212).

M.18. The semiannual monitoring reporting shall provide (ARM 17.8.1212):

a. A summary of the results of any compliance test conducted during the last reporting period;

b. Certification that the documents require d in Section III.M.9 were maintained;

c. A summary of the amount of clinker handled in the semiannual period; and

d. Certification that the CAM Plan contained in Appendix F of this permit was followed.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 37 N. Emitting Unit – EU034 #3 Finish Mill

Condition(s) Pollutant/Parameter Permit Limit Compliance Demonstration Method Frequency Reporting Requirements

Method 9 Every 5 years Semiannual N.1, N.6, N.11,

N.12, N.15, N.16, N.17 Opacity 40% Operation and
Maintenance of

a Baghouse Whenever
Process Equipment is

Operating Semiannual

Method 5 Every 5 years Semiannual N.2, N.7, N.11,

N.12, N.15, N.16, N.17 Particulate Matter E = 55.0P 0.11 – 40 Operation and
Maintenance of

a Baghouse Whenever
Process Equipment is

Operating Semiannual

N.3, N.8, N.13,

N.16, N.17 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Covers and
Enclosures Whenever
Process Equipment is

Operating Semiannual

N.4, N.9, N.13,

N.16, N.17 Operational Limit 245,280 tons/rolling
12-Month Period
Clinker Handled Recordkeeping Monthly Semiannual

N.5, N.10, N.14, N.16,
N.17 PM 10 CAM Plan CAM Plan Appendix F CAM Plan Appendix F Ongoing Semiannual

Conditions

N.1. Holcim shall not cause or authorize emissions to be discharged into the outdoor atmosphere from any source installed after November 23, 1968, that exhibit an opacity of 40% or greater averaged over 6 consecutive minutes, unless otherwise specified by rule or in this permit (ARM 17.8.304(1)).

N.2. The particulate emissions from process wei ght shall not exceed the value calculated by E =
55.0P 0.11 – 40, where E is the rate of emission in pou nds per hour and P is the process weight rate in tons per hour (ARM 17.8.310).

N.3. When process equipment is operating, Holcim shall use and maintain, as they were intended, conveyor covers, transfer point covers, or st ructural enclosures surrounding process equipment (ARM 17.8.749).

N.4. Holcim shall limit clinker handling to 245, 280 tons during any rolling 12-month period (ARM 17.8.749).

N.5. Holcim shall provide a reasonable assurance of compliance with the emission limitations or standards for the operation of the emitting unit by following the CAM plan contained in Appendix F of this permit (ARM 17.8.1504).

Compliance Demonstration

N.6. Holcim shall monitor compliance with S ection III.N.1 by operating, and inspecting and maintaining the baghouse(s) in accordance with A ppendix E of this permit. In addition, once every 5 years or according to another testing/m onitoring schedule as may be approved by the Department, Holcim shall perform Method 9 test in accordance with the Montana Source Test
Protocol and Procedures Manual (ARM 17.8.106 and 17.8.1213).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 38 N.7. Holcim shall monitor compliance with S ection III.N.2 by operating, and inspecting and maintaining the baghouse(s) in accordance with A ppendix E of this permit. In addition, once every 5 years or according to another testing/m onitoring schedule as may be approved by the Department, Holcim shall perform a Method 5 t est or another Department approved test in
accordance with the Montana Source Test Protoc ol and Procedures Manual (ARM 17.8.106 and 17.8.1213).

N.8. Holcim shall monitor compliance with Sec tion III.N.3 by documenting that conveyor covers, transfer point covers, or structural enclosur es surrounding process equipment were maintained and in place during operation of process equipment. The records shall include all repair and maintenance activity to all conveyor covers, transfer point covers, or structural enclosures. The records must include, but are not limited to, the date, time, and action(s) taken for repair and maintenance (ARM 17.8.1213).

N.9. Holcim shall document, by month, the amount of clinker handled. By the 25 th day of each month, Holcim shall total the amount of clinker handled during the previous month. The monthly information will be used to verify compliance with the rolling 12-month limitation contained in
Section III.N.4. The information for each of the previous months shall be submitted along with the annual emission inventory (ARM 17.8.1213).

N.10. Holcim shall monitor compliance with Secti on III.N.5 by monitoring emissions according to the CAM Plan contained in Appendix F of this permit (ARM 17.8.1503 and ARM 17.8.1213).

Recordkeeping

N.11. All compliance source test recordkeeping shall be performed in accordance with the test method used and the Montana Source Test Protocol and Procedures Manual, shall be maintained on site and must be submitted to the Department upon request (ARM 17.8.106 and ARM 17.8.1212).

N.12. Holcim shall maintain records of all in spection and maintenance activities performed on the baghouse in accordance with the requirements in Appendix E of this permit. All inspection and maintenance records must be available to the Depa rtment for inspection and must be submitted to the Department upon request (ARM 17.8.1212).

N.13. Holcim shall maintain records as required by Sections III.N.8 and III.N.9 on site and submit the information to the Department upon request (ARM 17.8.1212).

N.14. Holcim shall maintain CAM applicable reco rds in accordance with 40 CFR Part 64 and the CAM Plan contained in Appendix F of this permit (ARM 17.8.1212 and 40 CFR 64).

Reporting

N.15. Any compliance source test reports must be submitted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106).

N.16. The annual compliance certification required by Section V.B must contain a certification statement for the above applicable requirements (ARM 17.8.1212).

N.17. The semiannual monitoring report shall provide (ARM 17.8.1212):

a. A summary of the results of any compliance test conducted during the last reporting period;OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 39 b. Certification that the baghouse was operated, inspected, and maintained as required by Sections III.N.6 and III.N.7;

c. Certification that the documents required in Section III.N.8 were maintained;

d. A summary of the amount of clinker handled in the semiannual period; and

e. Certification that the CAM Plan contained in Appendix F of this permit was followed.

O. Emitting Units – EU036 #4 Finish Mill Product Separator
EU037 #4 Finish Mill

Condition(s) Pollutant/Parameter Permit Limit Compliance Demonstration Method Frequency Reporting Requirements
O.1, O.7, O.13,

O.17, O.18,
O.19 Opacity 10% Method 9 Every 5 years Semiannual

O.2, O.8, O.13,

O.17, O.18,
O.19 Particulate Matter E = 55.0P 0.11 – 40 Method 5 Every 5 years Semiannual

O.3, O.9, O.14,

O.18, O.19 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Operation and
Maintenance of Baghouse Whenever
Process Equipment is

Operating Semiannual

O.4, O.10, O.15, O.18,
O.19 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Covers and
Enclosures Whenever
Process Equipment is

Operating Semiannual

O.5, O.11, O.15, O.18,
O.19 Operational Limit 395,000 tons/rolling
12-Month Period
Clinker Handled Recordkeeping Monthly Semiannual

O.6, O.12, O.16, O.18,
O.19 PM 10 CAM Plan CAM Plan Appendix F CAM Plan Appendix F Ongoing Semiannual

Conditions

O.1. Holcim shall not cause or authorize emissions to be discharged into the outdoor atmosphere from
the Finish Mill #4 visible emissions that exhibit an opacity of 10% or greater averaged over 6 consecutive minutes, as required by 40 CFR Part 60, Subpart F (ARM 17.8.340).

O.2. The particulate emissions from process wei ght shall not exceed the value calculated by E =
55.0P 0.11 – 40, where E is the rate of emission in pou nds per hour and P is the process weight rate in tons per hour (ARM 17.8.310).

O.3. Holcim shall operate and maintain baghouse to control emissions from the emitting units (ARM 17.8.749).

O.4. When process equipment is operating, Holcim shall use and maintain, as they were intended, conveyor covers, transfer point covers, or st ructural enclosures surrounding process equipment (ARM 17.8.749).

O.5. Holcim shall limit clinker handling to 395, 000 tons during any rolling 12-month period (ARM 17.8.749).

O.6. Holcim shall provide a reasonable assurance of compliance with the emission limitations or standards for the operation of the #4 Finish Mill (EU037) by following the CAM plan contained in Appendix F of this permit (ARM 17.8.1504).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 40 Compliance Demonstration

O.7. Holcim shall monitor compliance with the 10% opacity limit in Section III.O.1 by performing a Method 9 test once every 5 years or according to another testing/monitoring schedule as may be approved by the Department. The test methods and procedures shall be conducted in accordance
with the Montana Source Test Protocol and Pr ocedures Manual (ARM 17.8.106 and 17.8.1213).

O.8. Holcim shall monitor compliance with the pa rticulate emission limitation in Section III.O.2 by performing a Method 5 test or another test method approved by the Department once every 5 years or according to another testing/monitoring schedule as may be approved by the Department. The test methods and procedures shall be conduc ted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106, 17.8.340, and ARM 17.8.1213).

O.9. Holcim shall monitor compliance with S ection III.O.3 by inspecting and maintaining the baghouse(s) in accordance with Appendix E of this permit (ARM 17.8.1213).

O.10. Holcim shall monitor compliance with Sec tion III.O.4 by documenting that conveyor covers, transfer point covers, or structural enclosur es surrounding process equipment were maintained and in place during operation of process equipment. The records shall include all repair and maintenance activity to all conveyor covers, transfer point covers, or structural enclosures. The records must include, but are not limited to, the date, time, and action(s) taken for repair and maintenance (ARM 17.8.1213).

O.11. Holcim shall document, by month, the amount of clinker handled. By the 25 th day of each month, Holcim shall total the amount of clinker handled during the previous month. The monthly information will be used to verify compliance with the rolling 12-month limitation contained in
Section III.O.5. The information for each of the previous months shall be submitted along with the annual emission inventory (ARM 17.8.1213).

O.12. Holcim shall monitor compliance with S ection III.O.6 by monitoring emissions from the #4 Finish Mill (EU037) according to the CAM Plan contained in Appendix F of this permit (ARM 17.8.1503 and ARM 17.8.1213).

Recordkeeping

O.13. All compliance source test recordkeeping shall be performed in accordance with the test method used and the Montana Source Test Protocol and Procedures Manual, shall be maintained on site, and shall be submitted to the Department upon request (ARM 17.8.106 and ARM 17.8.1212).

O.14. Holcim shall maintain records of all in spection and maintenance activities performed on the baghouse in accordance with the requirements in Appendix E of this permit. All inspection and maintenance records must be available to the Depa rtment for inspection and must be submitted to the Department upon request (ARM 17.8.1212).

O.15. Holcim shall maintain records as required by Sections III.O.10 and III.O.11 on site and submit the information to the Department upon request (ARM 17.8.1212).

O.16. Holcim shall maintain CAM applicable reco rds in accordance with 40 CFR Part 64 and the CAM Plan contained in Appendix F of this permit (ARM 17.8.1212 and 40 CFR 64). Reporting

O.17. Any compliance source test reports must be submitted in accordance with the Montana Source
Test Protocol and Procedures Manua l (ARM 17.8.106 and ARM 17.8.1212).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 41 O.18. The annual compliance certification required by Section V.B must contain a certification statement for the above applicable requirements (ARM 17.8.1212).

O.19. The semiannual monitoring report shall provide (ARM 17.8.1212):

a. A summary of the results of any compliance test conducted during the last reporting period;

b. Certification that the baghouse was operated, inspected, and maintained as required by Sections III.O.3 and III.O.9;

c. Certification that the documents required in Section III.O.10 were maintained;

d. A summary of the amount of clinker handled during the semiannual period; and

e. Certification that the CAM Plan contained in Appendix F of this permit was followed.

P. Emitting Units – EU044 Cement Loaded/Unloaded at Silos #1-#7, #10, #11, & #13 EU045 Cement Loaded/Unloaded at Silos #8, #9, & #12

Condition(s) Pollutant/Parameter Permit Limit Compliance Demonstration Method Frequency Reporting Requirements

Method 9 As Required by the Department

and Section

III.A.1 Semiannual P.1, P.4, P.7, P.8, P.10, P.11,
P.12 Opacity 40% Operation and
Maintenance of

a Baghouse Whenever
Process Equipment is

Operating Semiannual

Method 5 As Required by the Department

and Section

III.A.1 Semiannual P.2, P.5, P.7, P.8, P.10, P.11,
P.12 Particulate Matter E = 55.0P 0.11 – 40 Operation and
Maintenance of

a Baghouse Whenever
Process Equipment is

Operating Semiannual

P.3, P.6, P.9,

P.11, P.12 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Covers and
Enclosures Whenever
Process Equipment is

Operating Semiannual

Conditions

P.1. Holcim shall not cause or authorize emissions to be discharged into the outdoor atmosphere from any source installed after November 23, 1968, that exhibit an opacity of 40% or greater averaged over 6 consecutive minutes, unless otherwise specified by rule or in this permit (ARM 17.8.304(2)).

P.2. The particulate emissions from process wei ght shall not exceed the value calculated by E =
55.0P 0.11 – 40, where E is the rate of emission in pou nds per hour and P is the process weight rate in tons per hour (ARM 17.8.310).

P.3. When process equipment is operating, Holcim shall use and maintain, as they were intended, conveyor covers, transfer point covers, or st ructural enclosures surrounding process equipment (ARM 17.8.749).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 42 Compliance Demonstration

P.4. Holcim shall monitor compliance with S ection III.P.1 by operating, and inspecting and maintaining the baghouse(s) in accordance with A ppendix E of this permit. In addition, as required by the Department and Section III.A.1, Holcim shall perform a Method 9 test in
accordance with the Montana Source Test Protoc ol and Procedures Manual (ARM 17.8.106 and ARM 17.8.1213).

P.5. Holcim shall monitor compliance with S ection III.P.2 by operating, and inspecting and maintaining the baghouse(s) in accordance with A ppendix E of this permit. In addition, as required by the Department and Section III.A.1, Ho lcim shall perform a Method 5 test or another test method approved by the Department in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106 and ARM 17.8.1213).

P.6. Holcim shall monitor compliance with Sec tion III.P.3 by documenting that conveyor covers, transfer point covers, or structural enclosur es surrounding process equipment were maintained and in place during operation of process equipment. The records shall include all repair and maintenance activity to all conveyor covers, transfer point covers, or structural enclosures. The records must include, but are not limited to, the date, time, and action(s) taken for repair and maintenance (ARM 17.8.1213).

Recordkeeping

P.7. All compliance source test recordkeeping shall be performed in accordance with the test method used and the Montana Source Test Protocol and Procedures Manual, shall be maintained on site and must be submitted to the Department upon request (ARM 17.8.106 and ARM 17.8.1212).

P.8. Holcim shall maintain records of all in spection and maintenance activities performed on the baghouse(s) in accordance with the requirements in Appendix E of this permit. All inspection and maintenance records must be available to the Department for inspection and must be submitted to the Department upon request (ARM 17.8.1212).

P.9. Holcim shall maintain records as required by S ection III.P.6 on site and submit the information to the Department upon request (ARM 17.8.1212).

Reporting

P.10. Any compliance source test reports must be submitted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106).

P.11. The annual compliance certification required by Section V.B must contain a certification statement for the above applicable requirements (ARM 17.8.1212).

P.12. The semiannual monitoring report shall provide (ARM 17.8.1212):

a. A summary of the results of any compliance test conducted during the last reporting period;

b. Certification that the baghouse(s) were opera ted, inspected, and maintained as required by Section III.P.5; and

c. Certification that the document required in Section III.P.6 was maintained.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 43 Q. Emitting Units – EU046 Cement Transferred From Silos #1 - #13 to Bulk Load Silos #14 - #25
EU0047 Cement Loaded/Unloaded at Silos #14 - #25
EU049 Bulk Cement Truck Transfer/Loadout #1
EU050 Bulk Cement Truck Transfer/Loadout #2
EU051 Bulk Cement Railcar Transfer/Loadouts #1 and #2 EU062CKD Recycle Dust Scoops

Condition(s) Pollutant/Parameter Permit Limit Compliance Demonstration Method Frequency Reporting Requirements

Method 9 Every 5 years Semiannual Q.1, Q.4, Q.7,

Q.8, Q.10, Q.11, Q.12 Opacity 20% Operation and
Maintenance of

a Baghouse Whenever
Process Equipment is

Operating Semiannual

Method 5 Every 5 years Semiannual Q.2, Q.5, Q.7,

Q.8, Q.10, Q.11, Q.12 Particulate Matter E = 55.0P 0.11 – 40 Operation and
Maintenance of

a Baghouse Whenever
Process Equipment is

Operating Semiannual

Q.3, Q.6, Q.9,

Q.11, Q.12 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Covers and
Enclosures Whenever
Process Equipment is

Operating Semiannual

Conditions

Q.1. Holcim shall not cause or authorize emissions to be discharged into the outdoor atmosphere from any source installed after November 23, 1968, that exhibit an opacity of 20% or greater averaged over 6 consecutive minutes, unless otherwise specified by rule or in this permit (ARM 17.8.304(2)).

Q.2. The particulate emissions from process wei ght shall not exceed the value calculated by E =
55.0P 0.11 – 40, where E is the rate of emission in pou nds per hour and P is the process weight rate in tons per hour (ARM 17.8.310).

Q.3. When process equipment is operating, Holcim shall use and maintain, as they were intended, conveyor covers, transfer point covers, or st ructural enclosures surrounding process equipment (ARM 17.8.749).

Compliance Demonstration

Q.4. Holcim shall monitor compliance with S ection III.Q.1 by operating, and inspecting and maintaining the baghouse(s) in accordance with A ppendix E of this permit. In addition, once every 5 years or according to another testing/m onitoring schedule as may be approved by the Department, Holcim shall perform a Method 9 t est in accordance with th e Montana Source Test Protocol and Procedures Manual (A RM 17.8.106 and ARM 17.8.1213).

Q.5. Holcim shall monitor compliance with S ection III.Q.2 by operating, and inspecting and maintaining the baghouse(s) in accordance with A ppendix E of this permit. In addition, once every 5 years or according to another testing/m onitoring schedule as may be approved by the Department, Holcim shall perform a Method 5 t est or another test method approved by the Department in accordance with the Montana Sour ce Test Protocol and Procedures Manual (ARM 17.8.106 and ARM 17.8.1213).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 44 Q.6. Holcim shall monitor compliance with Sec tion III.Q.3 by documenting that conveyor covers, transfer point covers, or structural enclosur es surrounding process equipment were maintained and in place during operation of process equipment. The records shall include all repair and maintenance activity to all conveyor covers, transfer point covers, or structural enclosures. The records must include, but are not limited to, the date, time, and action(s) taken for repair and maintenance (ARM 17.8.1213).

Recordkeeping

Q.7. All compliance source test recordkeeping shall be performed in accordance with the test method used and the Montana Source Test Protocol and Procedures Manual, shall be maintained on site and must be submitted to the Department upon request (ARM 17.8.106 and ARM 17.8.1212).

Q.8. Holcim shall maintain records of all inspection and maintenance activities performed on the baghouse in accordance with the requirements in Appendix E of this permit. All inspection and maintenance records must be available to the Depa rtment for inspection and must be submitted to the Department upon request (ARM 17.8.1212).

Q.9. Holcim shall maintain records as required by S ection III.Q.6 on site and submit the information to the Department upon request (ARM 17.8.1212).

Reporting

Q.10. Any compliance source test reports must be submitted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106).

Q.11. The annual compliance certification required by Section V.B must contain a certification statement for the above applicable requirements (ARM 17.8.1212).

Q.12. The semiannual monitoring report shall provide (ARM 17.8.1212):

a. A summary of the results of any compliance test conducted during the last reporting period;

b. Certification that the baghouse was operated and maintained as required by Section III.Q.5;
and

c. Certification that the document required in Section III.Q.6 was maintained.

R. Emitting Unit – EU048 Cement Loaded/Unloaded at Silos #26 - #30

Condition(s) Pollutant/Parameter Permit Limit Compliance Demonstration Method Frequency Reporting Requirements
R.1, R.5, R.9,

R.12, R.13,
R.14 Opacity 10% Method 9 Every 5 years Semiannual

R.2, R.6, R.9,

R.12, R.13,
R.14 Particulate Matter E = 55.0P 0.11 - 40 Method 5 Every 5 years Semiannual

R.3, R.7, R.10,

R.13, R.14 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Operation and
Maintenance of Baghouse Whenever
Process Equipment is

Operating Semiannual

R.4, R.8, R.11,

R.13, R.14 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Covers and
Enclosures Whenever
Process Equipment is

Operating SemiannualOP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 45 Conditions

R.1. Holcim shall not cause or authorize emissions to be discharged into the outdoor atmosphere from any source, visible emissions that exhibit an opacity of 10% or greater averaged over 6 consecutive minutes, as required by 40 CFR Part 60, Subpart F (ARM 17.8.340).

R.2. The particulate emissions from process wei ght shall not exceed the value calculated by E =
55.0P 0.11 – 40, where E is the rate of emission in pou nds per hour and P is the process weight rate in tons per hour (ARM 17.8.310).

R.3. Holcim shall operate and maintain baghouse to control emissions from the emitting units (ARM 17.8.749).

R.4. When process equipment is operating, Holcim shall use and maintain, as they were intended, conveyor covers, transfer point covers, or st ructural enclosures surrounding process equipment (ARM 17.8.749)

Compliance Demonstration

R.5. Holcim shall monitor compliance with the 10% opacity limit in Section III.R.1 by performing a Method 9 test once every 5 years or according to another testing/monitoring schedule as may be approved by the Department. The test methods and procedures shall be conducted in accordance
with the Montana Source Test Protocol and Pr ocedures Manual (ARM 17.8.106 and 17.8.1213).

R.6. Holcim shall monitor compliance with the pa rticulate emission limitation in Section III.R.2 by performing a Method 5 test, or another test method approved by the Department, once every 5 years or according to another testing/monitoring schedule as may be approved by the Department. The test methods and procedures shall be conduc ted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106, 17.8.340, and ARM 17.8.1213).

R.7. Holcim shall monitor compliance with S ection III.R.3 by inspecting and maintaining the baghouse(s) in accordance with Appendix E of this permit (ARM 17.8.1213).

R.8. Holcim shall monitor compliance with Sec tion III.R.4 by documenting that conveyor covers, transfer point covers, or structural enclosur es surrounding process equipment were maintained and in place during operation of process equipment. The records shall include all repair and maintenance activity to all conveyor covers, transfer point covers, or structural enclosures. The records must include, but are not limited to, the date, time, and action(s) taken for repair and maintenance (ARM 17.8.1213).

Recordkeeping

R.9. All compliance source test recordkeeping shall be performed in accordance with the test method used and the Montana Source Test Protocol and Procedures Manual, shall be maintained on site, and shall be submitted to the Department upon request (ARM 17.8.106 and ARM 17.8.1212).

R.10. Holcim shall maintain records of all in spection and maintenance activities performed on the baghouse in accordance with the requirements in Appendix E of this permit. All inspection and maintenance records must be available to the Depa rtment for inspection and must be submitted to the Department upon request (ARM 17.8.1212).

R.11. Holcim shall maintain records as required by S ection III.R.8 on site and submit the information to the Department upon request (ARM 17.8.1212).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 46 Reporting

R.12. Any compliance source test reports must be submitted in accordance with the Montana Source
Test Protocol and Procedures Manua l (ARM 17.8.106 and ARM 17.8.1212).

R.13. The annual compliance certification required by Section V.B must contain a certification statement for the above applicable requirements (ARM 17.8.1212).

R.14 The semiannual monitoring report shall provide (ARM 17.8.1212):

a. A summary of the results of any compliance test conducted during the last reporting period;

b. Certification that the baghouse was operated a nd maintained as required by Section III.R.7;
and

c. Certification that the document required in Section III.R.8 was maintained.

S. Emission Unit – EU053 CKD and Flyash Transfers to/from Pozzolan Silo

Condition(s) Pollutant/Parameter Permit Limit Compliance Demonstration Method Frequency Reporting Requirements

S.1, S.5, S.10,

S.13, S.14,
S.15 Opacity 20% Method 9 As Required by the Department

and Section

III.A.1 Semiannual

S.1, S.6, S.10, S13, S14, S.15 Particulate Matter 0.02 gr/dscf Method 5 As Required by the Department

and Section

III.A.1 Semiannual

S.2, S.7, S.11,

S.12, S.14,
S.15 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Operation and
Maintenance of Baghouse Whenever
Process Equipment is

Operating Semiannual

S.3, S.8, S12,

S14, S.15 Enclosures Installation, Use,
and Maintenance of
Enclosures Use and
Maintenance Whenever
Process Equipment is

Operating Semiannual

S.4, S.9, S.12,

S.14, S.15 Operational Limit 50,000 tons/rolling
12-Month Period
Pozzolan Material
Handled Recordkeeping Monthly Semiannual

Conditions

S.1. Holcim shall not cause or authorize to be discharged into the atmosphere, from the pozzolan material silo baghouse:

a. Particulate matter in excess of 0.02 gr/dscf (ARM 17.8.752); and

b. Visible emissions that exhibit an opacity of 20% or greater averaged over 6 consecutive minutes (ARM 17.8.752).

S.2. Holcim shall operate and maintain baghouse(s) to control emissions from the pozzolan material silo (ARM 17.8.752).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 47 S.3. Holcim shall use and maintain enclosures ar ound the pozzolan material system components listed below (ARM 17.8.752):

a. Rotary feeder;

b. Weighbelt conveyor; and

c. Screw line (conveyor).

S.4. Holcim shall not use, in any rolling 12-mont h period, greater than 50,000 tons of pozzolan material in the pozzolan material system (ARM 17.8.752).

Compliance Demonstration

S.5. Holcim shall monitor compliance with the 20% opacity limit contained in Section III.S.1 by performing a Method 9 test as required by the Depart ment and Section III.A.1. The test methods and procedures shall be conducted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106 and 17.8.1213).

S.6. Holcim shall monitor compliance with the pa rticulate emission limitation in Section III.S.1 by performing a Method 5 test or another test me thod approved by the Department, as required by the Department and Section III.A.1. The test methods and procedures shall be conducted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106, 17.8.340, and ARM 17.8.1213).

S.7. Holcim shall monitor compliance with S ection III.S.2 by inspecting and maintaining the baghouse(s) in accordance with Appendix E of this permit (ARM 17.8.1213).

S.8. Holcim shall monitor compliance with Section III.S.3 by documenting that enclosures surrounding process equipment were maintained and in place during operation of process equipment. The records shall include all repa ir and maintenance activity to all structural enclosures. The records must include, but are not limited to, the date, time, and action(s) taken for repair and maintenance (ARM 17.8.1213).

S.9. Holcim shall document, by month, the amount of pozzolan material used in the pozzolan material system. By the 25 th day of each month, Holcim shall total the amount of pozzolan material used in the pozzolan material system during the previous month. The monthly information will be used to verify compliance with the rolling 12-month limitation contained in Section III.S.4. The information for each of the previous months shall be submitted along with the annual emission inventory (ARM 17.8.1213).

Recordkeeping

S.10. All compliance source test recordkeeping shall be performed in accordance with the test method used and the Montana Source Test Protocol and Procedures Manual, shall be maintained on site, and shall be submitted to the Department upon request (ARM 17.8.106 and ARM 17.8.1212).

S.11. Holcim shall maintain records of all inspection and maintenance activities performed on the baghouse in accordance with the requirements in Appendix E of this permit. All inspection and maintenance records must be available to the Depa rtment for inspection and must be submitted to the Department upon request (ARM 17.8.1212).

S.12. Holcim shall maintain records as required by S ection III.S.7, III.S.8 and III.S.9 on site and submit the information to the Department upon request (ARM 17.8.1212).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 48 Reporting

S.13. Any compliance source test reports must be submitted in accordance with the Montana Source
Test Protocol and Procedures Manua l (ARM 17.8.106 and ARM 17.8.1212).

S.14. The annual compliance certification required by Section V.B must contain a certification statement for the above applicable requirements (ARM 17.8.1212).

S.15. The semiannual monitoring report shall provide (ARM 17.8.1212):

a. A summary of the results of any compliance test conducted during the last reporting period;

b. Certification that the baghouse was inspecte d and maintained as required by Section III.S.7;

c. Certification that the documents required in Section III.S.8 were maintained; and

d. A summary of the amount of pozzolan material u sed in the pozzolan material system for the semiannual period.

T. Emitting Unit – EU054 Landfilled Cement Kiln Dust (CKD) Handling

Condition(s) Pollutant/Parameter Permit Limit Compliance Demonstration Method Frequency Reporting Requirements

T.1, T.4, T.7,

T.10, T.11 Opacity 20% Water Spray As Needed Semiannual

T.2, T.5, T.8,

T.10, T.11 Airborne Particulate Matter Reasonable
Precautions Water and/or
Chemical Dust Suppressants As Needed Semiannual

T.3, T.6, T.9,

T.10, T.11 Operational Limit 85,000 Tons of
Landfilled CKD/Rolling 12-

Month Period Recordkeeping Monthly Semiannual

Conditions

T.1. Holcim shall not cause or authorize emissions to be discharged into the outdoor atmosphere from any source installed after November 23, 1968, that exhibit an opacity of 20% or greater averaged over 6 consecutive minutes, unless otherwise specified by rule or in this permit (ARM 17.8.304(2)),

T.2. Holcim shall not cause or authorize the use of any street, road, or parking lot without taking reasonable precautions to control emissions of ai rborne particulate matter (ARM 17.8.308(2)).

T.3. Holcim shall not handle mo re than 85,000 tons of landfille d CKD in any rolling 12-month period (ARM 17.8.752).

Compliance Demonstration

T.4. Holcim shall monitor compliance with Section III.T.1 by using water spray, as necessary, when handling landfilled CKD (ARM 17.8.752 and 17.8.1213).

T.5. Holcim shall monitor compliance with Section III.T.2 by treating all unpaved portions of the haul roads, access roads, parking lots, or the genera l plant area with water and/or chemical dust suppressant, as necessary (ARM 17.8.749).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 49 T.6. Holcim shall document, by month, the am ount CKD reclaimed from the landfill. By the 25 th day of each month, Holcim shall total the amount of CKD reclaimed from the landfill during the previous month. The monthly information will be used to verify compliance with the rolling 12- month limitation contained in Section III.T.3. The information for each of the previous months shall be submitted along with the annua l emission inventory (ARM 17.8.1213).

Recordkeeping

T.7. Holcim shall maintain records that water sp ray was used, as necessary, when handling landfilled CKD. The records must include, but are not limited to, the date and time that water spray was used (ARM 17.8.1213).

T.8. Holcim shall maintain records that all unpave d portions of the haul roads, access roads, parking lots, or the general plant area were treated with water and/or chemical dust suppressant, as necessary. The records must include, but are not limited to, the date and time of the application
of the water and/or chemical dust suppressant (ARM 17.8.1213).

T.9. Holcim shall maintain records as required by Sections III.T.6 on site and submit the information to the Department upon request (ARM 17.8.1212).

Reporting

T.10. The annual compliance certification required by Section V.B must contain a certification statement for the above applicable requirements (ARM 17.8.1212).

T.11. The semiannual monitoring report shall provide (ARM 17.8.1212):

a. A summary of the water spray use when hand ling landfilled CKD for the semiannual period;

b. A summary of the water and/or chemical dus t suppressant applications for the semiannual period; and

c. A summary of the amount of CKD reclaimed from the landfill for the semiannual period.

U. Emitting Unit – EU055 Material Handling System for Feeding the Finish Mills

Condition(s) Pollutant/Parameter Permit Limit Compliance Demonstration Method Frequency Reporting Requirements

Method 9 As Required by the Department

and Section

III.A.1 Semiannual U.1, U.4, U.7,

U.8, U.10, U.11, U.12 Opacity 20% Operation and
Maintenance of a Baghouse(s) Whenever
Process Equipment is

Operating Semiannual

Method 5 As Required by the Department

and Section

III.A.1 U.2, U.5, U.8,

U.11, U.12 Particulate Matter E = 55.0P 0.11 - 40 Operation and
Maintenance of a Baghouse(s) Whenever
Process Equipment is

Operating Semiannual

U.3, U.6, U.9,

U.11, U.12 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Covers and
Enclosures Whenever
Process Equipment is

Operating SemiannualOP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 50 Conditions

U.1. Holcim shall not cause or authorize the production, handling, transportation, or storage of any material unless reasonable precautions to control emissions of airborne particulate matter are taken. Such emissions of airborne particulate matter from any stationary source shall not exhibit an opacity of 20% or greater averaged over 6 consecutive minutes (ARM 17.8.308).

U.2. The particulate emissions from process wei ght shall not exceed the value calculated by E =
55.0P 0.11 – 40, where E is the rate of emission in pou nds per hour and P is the process weight rate in tons per hour (ARM 17.8.310).

U.3. When process equipment is operating, Holcim shall use and maintain, as they were intended, conveyor covers, transfer point covers, or st ructural enclosures surrounding process equipment (ARM 17.8.749)

Compliance Demonstration

U.4. Holcim shall monitor compliance with S ection III.U.1 by operating, and inspecting and maintaining the baghouse(s) in accordance with A ppendix E of this permit. In addition, as required by the Department and Section III.A.1, Holcim shall perform a Method 9 test in
accordance with the Montana Source Test Protoc ol and Procedures Manual (ARM 17.8.106 and 17.8.1213).

U.5. Holcim shall monitor compliance with S ection III.U.2 by operating, and inspecting and maintaining the baghouse(s) in accordance with A ppendix E of this permit. In addition, as required by the Department and Section III.A.1, Ho lcim shall perform a Method 5 test, or another test method approved by the Department, in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106 and 17.8.1213).

U.6. Holcim shall monitor compliance with Sec tion III.U.3 by documenting that conveyor covers, transfer point covers, or structural enclosur es surrounding process equipment were maintained and in place during operation of process equipment. The records shall include all repair and maintenance activity to all conveyor covers, transfer point covers, or structural enclosures. The records must include, but are not limited to, the date, time, and action(s) taken for repair and maintenance (ARM 17.8.1213).

Recordkeeping

U.7. All compliance source test recordkeeping shall be performed in accordance with the test method used and the Montana Source Test Protocol and Procedures Manual, shall be maintained on site and must be submitted to the Department upon request (ARM 17.8.106 and ARM 17.8.1212).

U.8. Holcim shall maintain records of all inspection and maintenance activities performed on the baghouse in accordance with the requirements in Appendix E of this permit. All inspection and maintenance records must be available to the Depa rtment for inspection and must be submitted to the Department upon request (ARM 17.8.1212).

U.9. Holcim shall maintain records as required by Section III.U.6 and submit the information to the Department upon request (ARM 17.8.1212).

Reporting

U.10. Any compliance source test reports must be submitted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 51 U.11. The annual compliance certification required by Section V.B must contain a certification statement for the above applicable requirements (ARM 17.8.1212).

U.12. The semiannual monitoring report shall provide (ARM 17.8.1212):

a. A summary of any compliance tests conducted during the last reporting period;

b. Certification that the document required in Sections III.U.6 and III.U.8 were maintained; and

V. Emitting Unit – EU042 Outside Clinker Transfer to Pile

Condition(s) Pollutant/Parameter Permit Limit Compliance Demonstration Method Frequency Reporting Requirements

V.1, V.3, V.5, V.7, V.8, V.9 Opacity 20% Method 9 As Required by the Department

and Section

III.A.1 Semiannual

V.2, V.4, V.6, V.7, V.8, V.9 Emission Control Equipment Operation and
Maintenance of
Emission Control Equipment Covers and
Enclosures Whenever
Process Equipment is

Operating Semiannual

Conditions

V.1. Holcim shall not cause or authorize the production, handling, transportation, or storage of any material unless reasonable precautions to control emissions of airborne particulate matter are taken. Such emissions of airborne particulate matter from any stationary source shall not exhibit an opacity of 20% or greater averaged over 6 consecutive minutes (ARM 17.8.308).

V.2. When process equipment is operating, Holcim shall use and maintain, as they were intended, conveyor covers, transfer point covers, or st ructural enclosures surrounding process equipment (ARM 17.8.749)

Compliance Demonstration

V.3. Holcim shall monitor compliance with Section III.V.1 by conducting a Method 9 test, as required by the Department and Section III.A.1, in accord ance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106 and 17.8.1213).

V.4. Holcim shall monitor compliance with Sec tion III.V.3 by documenting that conveyor covers, transfer point covers, or structural enclosur es surrounding process equipment were maintained and in place during operation of process equipment. The records shall include all repair and maintenance activity to all conveyor covers, transfer point covers, or structural enclosures. The records must include, but are not limited to, the date, time, and action(s) taken for repair and maintenance (ARM 17.8.1213).

Recordkeeping

V.5. All compliance source test recordkeeping shall be performed in accordance with the test method used and the Montana Source Test Protocol and Procedures Manual, shall be maintained on site and must be submitted to the Department upon request (ARM 17.8.106 and ARM 17.8.1212).

V.6. Holcim shall maintain records as required by S ection III.V.4 on site and submit the information to the Department upon request (ARM 17.8.1212).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 52 Reporting

V.7. Any compliance source test reports must be submitted in accordance with the Montana Source Test Protocol and Procedures Manual (ARM 17.8.106).

V.8. The annual compliance certification required by Section V.B must contain a certification statement for the above applicable requirements (ARM 17.8.1212).

V.9. The semiannual monitoring report shall provide (ARM 17.8.1212):

a. A summary of any compliance tests conducted during the last reporting period; and

b. Certification that the document required in Section III.V.4 was maintained.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 53 SECTION IV. NON-APPLICABLE REQUIREMENTS

Air Quality Administrative Rules of Montana (ARM) a nd Federal Regulations identified as not applicable to the facility or to a specific emissions unit at th e time of the permit issuance are listed below (ARM 17.8.1214). The following list does not preclude the n eed to comply with any new requirements that may become applicable during the permit term.

A. Facility-Wide

The following table contains non-appl icable require ments which are administrated by the Air Resources Management Bureau of the Department of Environmental Quality.

Rule Citation Reason

ARM 17.8.320
ARM17.8.324 These rules are not applicable because the facility does not have the specific emissions unit cited in the rules.

ARM 17.8.321
ARM 17.8.331
ARM 17.8.332
ARM 17.8.333
ARM 17.8.334
ARM 17.8.323
ARM 17.8.610
40 CFR 57 These rules are not applicable because the facility is not listed in the source category cited in the rules.

40 CFR 55
40 CFR 59 40 CFR 60 Subpart B 40 CFR 60 Subparts C, Ca, Cb, Cc, Cd, and Ce 40 CFR 60 Subparts D, Da, Db, Dc 40CFR 60 Subpart E, Ea, Eb, and Ec 40 CFR 60 Subparts G, H, I, J 40 CFR 60 Subparts K, Ka, Kb 40 CFR 60 Subparts L-X 40 CFR 60 Subpart Z 40 CFR 60 Subparts AA-EE 40 CFR 60 Subparts GG-HH 40 CFR 60 Subparts KK-NN 40 CFR 60 Subparts PP-XX 40 CFR 60 Subparts AAA-BBB 40 CFR 60 Subparts DDD 40 CFR 60 Subparts FFF-LLL 40 CFR 60 Subparts NNN-WWW 40 CFR 60 Subparts AAAA-DDDD 40 CFR 60 Subpart HHHH 40 CFR 60 Appendix G 40 CFR 60 Appendix I 40 CFR 61 Subparts B-F 40 CFR 61 Subparts H-L 40 CFR 61 Subparts N-R 40 CFR 61 Subpart T 40 CFR 61 Subparts V-W 40 CFR 61 Subpart Y 40 CFR 61 Subpart BB 40 CFR 61 Subpart FF 40 CFR 61 Appendices A-E 40 CFR 63 Subparts F-J 40 CFR 63 Subparts L,O 40 CFR 63 Subpart Q-U 40 CFR 63 Subparts W-Y 40 CFR 63 Subparts AA-EE 40 CFR 63 Subparts GG-MM 40 CFR 63 Subparts OO-YY 40 CFR 63 Subparts CCC-EEE These requirements are not applicable because the facility is not an affected source as defined in these regulations.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 54 40 CFR 63 Subparts GGG-KKK 40 CFR 63 Subparts MMM-RRR 40 CFR 63 Subparts TTT-XXX 40 CFR 63 Subpart AAAA 40 CFR 63 Subparts CCCC-KKKK 40 CFR 63 Subparts MMMM-ZZZZ 40 CFR 63 Subparts AAAAA-TTTTT
40 CFR 68
40 CFR 79-80
40 CFR 85-99

40 CFR 72
40 CFR 73
40CFR 74
40 CFR 75
40 CFR 76
40 CFR 77
40 CFR 78 These requirements are not applicable because the facility is not an affected source as defined by the acid rain regulations.

40 CFR 82 Subpart A 40 CFR 82 Subparts C-D 40 CFR 82 Subparts G-H These rules refers to processes, equipment and/or activities that are not used at the facility

B. Emission Units

The perm it application identified applicable requireme nts: non-applicable requirements for individual or specific emission units were not listed. The Depart ment has listed all non-applicable requirements in Section IV.A, these requirements relate to each specific unit, as well as facility wide.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 55 SECTION V. GENERAL PERMIT CONDITIONS

A. Compliance Requirements ARM 17.8, Subchapter 12, Operating Permit Program §1210(2)(a)-(c)& (e), §1206(6)(c)&(b)

1. The permittee must comply with all conditions of the permit. Any noncompliance with the terms or conditions of the permit constitutes a violation of the Montana Clean Air Act, and may result in enforcement action, permit modification, revocation and reissuance, or termination, or denial of a permit renewal application under ARM Title 17, Chapter 8, Subchapter 12.

2. The filing of a request by the permittee for a pe rmit modification, revocation and reissuance, or termination, or of a notification of planned ch anges or anticipated noncompliance does not stay any permit condition.

3. It shall not be a defense for a permittee in an enforcement action that it would have been necessary to halt or reduce the permitted activity in order to maintain compliance with the conditions of the permit. If appropriate, this factor may be considered as a mitigating factor in assessing a penalty for noncompliance with an applicable requirement if the source demonstrates that both the health, safety or environmental impacts of halting or reducing operations would be more serious than the impa cts of continuing operations, and that such health, safety or environmental impacts were unf oreseeable and could not have otherwise been
avoided.

4. The permittee shall furnish to the Department, w ithin a reasonable time set by the Department (not to be less than 15 days), any information that the Department may request in writing to determine whether cause exists for modifying, revoking and reissuing, or terminating the permit, or to determine compliance with the permit. Upon request, the permittee shall also furnish to the Department copies of those records that are required to be kept pursuant to the terms of the permit. This subsection does not impair or otherwise limit the right of the permittee to assert the confidentiality of the information requested by the Department, as provided in 75-2-105, MCA.

5. Any schedule of compliance for applicable requirements with which the source is not in compliance with at the time of permit issuance sh all be supplemental to, and shall not sanction noncompliance with, the applicable requirements on which it was based.

6. For applicable requirements that will become e ffective during the permit term, the source shall meet such requirements on a timely basis unless a more detailed plan or schedule is required by the applicable requirement or the Department.

B. Certification Requirements ARM 17.8, Subchapter 12, Operating Pe rmit Program §1207 a nd §1213(7)(a)&(c)-(d)

1. Any application form, report, or compliance cer tification submitted pursuant to ARM Title 17, Chapter 8, Subchapter 12, shall contain certifica tion by a responsible official of truth, accuracy and completeness. This certification and any other certification require d under ARM Title 17, Chapter 8, Subchapter 12, shall state that, based on information and belief formed after reasonable inquiry, the statements and inform ation in the document are true, accurate and complete.

2. Compliance certifications shall be submitted by February 15 of each year, or more frequently if otherwise specified in an applicable requirement or elsewhere in the permit. Each certification must include the required information for th e previous calendar year (i.e., January 1 – December 31).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 56 3. Compliance certifications shall include the following:

a. The identification of each term or condition of the permit that is the basis of the certification;

b. The identification of the method(s) or other means used by the owner or operator for determining the status of compliance with each term and condition during the certification period, consistent with ARM 17.8.1212;

c. The status of compliance with each term a nd condition for the period covered by the certification, including whether compliance during the period was continuous or
intermittent (based on the method or means identified in ARM 17.8.1213(7)(c)(ii), as described above); and

d. Such other facts as the Department may require to determine the compliance status of the

source.

4. All compliance certifications must be submitted to the Environmental Protection Agency, as well as to the Department, at the addresses liste d in the Notification Addresses Appendix of this permit.

C. Permit Shield ARM 17.8, Subchapter 12, Oper ating Per mit Program §1214(1)-(4)

1. The applicable requirements and non-federally enforceable requirements are included and specifically identified in this permit and the permit includes a precise summary of the requirements not applicable to the source. Compliance with the conditions of the permit shall be deemed compliance with any applicable re quirements and any non-federally enforceable requirements as of the date of permit issuance.

2. The permit shield described in 1 above shall rema in in effect during the appeal of any permit action (renewal, revision, reopening, or re vocation and reissuance) to the Board of Environmental Review (Board), until such time as the Board renders its final decision.

3. Nothing in this permit alters or affects the following:

a. The provisions of Sec. 7603 of the FCAA, including the authority of the administrator under that section;

b. The liability of an owner or operator of a source for any violation of applicable requirements prior to or at the time of permit issuance;

c. The applicable requirements of the Acid Rain Program, consistent with Sec. 7651g(a) of the FCAA;

d. The ability of the administrator to obtain in formation from a source pursuant to Sec. 7414 of the FCAA;

e. The ability of the Department to obtain info rmation from a source pursuant to the Montana Clean Air Act, Title 75, Chapter 2, MCA;

f. The emergency powers of the Department un der the Montana Clean Air Act, Title 75, Chapter 2, MCA; andOP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 57 g. The ability of the Department to establish or revise requirements for the use of Reasonably Available Control Technology (RACT) as define d in ARM Title 17, Chapter 8. However, if the inclusion of a RACT into the permit pursuant to ARM Title 17, Chapter 8, Subchapter 12, is appealed to the Board, the permit shield, as it applies to the source’s existing permit, shall remain in effect until such time as the Board has rendered its final
decision.

4. Nothing in this permit alters or affects the ability of the Department to take enforcement action for a violation of an applicable requirement or permit term demonstrated pursuant to ARM 17.8.106, Source Testing Protocol.

5. Pursuant to ARM 17.8.132, for the purpose of s ubmitting a compliance certification, nothing in these rules shall preclude the use, including the exclusive use, of any credible evidence or information relevant to whether a source would have been in compliance. However, when compliance or noncompliance is demonstrated by a test or procedure provided by permit or other applicable requirements, the source sha ll then be presumed to be in compliance or noncompliance unless that presumption is overcom e by other relevant credible evidence.

6. The permit shield will not extend to minor perm it modifications or changes not requiring a permit revision (see Sections I & J).

7. The permit shield will extend to significant perm it modifications and transfer or assignment of ownership (see Sections K & N).

D. Monitoring, Recordkeeping, and Reporting Requirements ARM 17.8, S ubchapter 12, Oper ating Permit Program §1212(2)&(3)

1. Unless otherwise provided in this permit, the permittee shall maintain compliance monitoring records that include the following information:

a. The date, place as defined in the permit, and time of sampling or measurement;

b. The date(s) analyses were performed;

c. The company or entity that performed the analyses;

d. The analytical techniques or methods used;

e. The results of such analyses; and

f. The operating conditions at the time of sampling or measurement.

2. The permittee shall retain records of all require d monitoring data and s upport information for a period of at least 5 years from the date of the monitoring sample, measurement, report, or application. Support information includes a ll calibration and maintenance records and all original strip-chart recordings for continuous monitoring instrumentation, and copies of all reports required by the permit. All monitoring data, support information, and required reports and summaries may be maintained in computerized form at the plant site if the information is made available to Department personnel upon request, which may be for either hard copies or computerized format. Strip-charts must be mainta ined in their original form at the plant site
and shall be made available to Department personnel upon request.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 58 3. The permittee shall submit to the Department, at the addresses located in the Notification Addresses Appendix of this permit, reports of any required monitoring by February 15 and August 15 of each year, or more frequently if othe rwise specified in an applicable requirement or elsewhere in the permit. The monitoring report submitted on February 15 of each year must include the required monitoring information for the period of July 1 through December 31 of the previous year. The monitoring report submitted on August 15 of each year must include the required monitoring information for the period of Ja nuary 1 through June 30 of the current year. All instances of deviations from the permit requi rements must be clearly identified in such reports. All required reports must be certified by a responsible official, consistent with ARM
17.8.1207.

E. Prompt Deviation Reporting ARM 17.8, S ubchapter 12, Oper ating Permit Program §1212(3)(c)

The permittee shall promptly report deviations from permit requirements, including those attributable to upset conditions as defined in the permit, the pr obable cause of such deviations, and any corrective actions or preventive measures taken. To be considered prompt, deviations shall be reported as part of the routine reporting requirements under ARM 17. 8.1212(3)(b) and, if applicable, in accordance with the malfunction reporting requirements under ARM 17.8.110, unless otherwise specified in an applicable requirement.

F. Emergency Provisions ARM 17.8, S ubchapter 12, Operating Perm it Program §1201(13) and §1214(5), (6)&(8)

1. An “emergency” means any situation arising from sudden and reasonably unforeseeable events beyond the control of the source, including acts of God, which situation requires immediate corrective action to restore normal operation and causes the source to exceed a technologybased emission limitation under this permit due to the unavoidable increases in emissions attributable to the emergency. An emergenc y shall not include noncompliance to the extent caused by improperly designed equipment, lack of reasonable preventive maintenance, careless or improper operation, or operator error.

2. An emergency constitutes an affirmative defense to an action brought for noncompliance with a technology-based emission limitation if the pe rmittee demonstrates through properly signed, contemporaneous logs, or othe r relevant evidence, that:

a. An emergency occurred and the permittee can identify the cause(s) of the emergency;

b. The permitted facility was at the time being properly operated;

c. During the period of the emergency the permittee took all reasonable steps to minimize levels of emissions that exceeded the emission standards or other requirements in the permit; and

d. The permittee submitted notice of the emergency to the Department within 2 working days
of the time when emission limitations were ex ceeded due to the emergency. This notice fulfills the requirements of ARM 17.8.1212(3)(c ). This notice must contain a description of the emergency, any steps taken to mitiga te emissions, and corrective actions taken.

3. These emergency provisions are in addition to any emergency, malfunction or upset provision contained in any applicable requirement.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 59 G. Inspection and Entry ARM 17.8, Subchapter 12, Oper ating Permit Program §1213(3)&(4)

1. Upon presentation of credentials and other requirements as may be required by law, the permittee shall allow the Department, the admini strator, or an authorized representative (including an authorized contractor acting as a representative of the Department or the administrator) to perform the following:

a. Enter the premises where a source required to obtain a permit is located or emissionsrelated activity is conducted, or where record s must be kept under the conditions of the permit;

b. Have access to and copy, at reasonable times, any records that must be kept under the conditions of the permit;

c. Inspect at reasonable times any facilities, em ission units, equipment (including monitoring and air pollution control equipment), practices, or operations regulated or required under the permit; and

d. As authorized by the Montana Clean Air Act and rules promulgated thereunder, sample or monitor, at reasonable times, any substances or parameters at any location for the purpose of assuring compliance with the permit or applicable requirements.

2. The permittee shall inform the inspector of all workplace safety rules or requirements at the time of inspection. This section shall not limit in any manner the Department’s statutory right of entry and inspection as provided for in 75-2-403, MCA.

H. Fee Payment ARM 17.8, Subchapter 12, Opera ting Permit Program §1210(2)(f) and ARM 17.8, Subchapter 5, Air Quality Permit Application, Operation, and Open Burning Fees §505(3)-(5) (STATE ONLY)

1. The permittee must pay application and operating fees, pursuant to ARM Title 17, Chapter 8, Subchapter 5.

2. Annually, the Department shall provide the permittee with written notice of the amount of the fee and the basis for the fee assessment. The air quality operation fee is due 30 days after receipt of the notice, unless the fee assessment is appealed pursuant to ARM 17.8.511. If any portion of the fee is not appealed, that portion of the fee that is not appealed is due 30 days after receipt of the notice. Any remaining fee, which may be due after the completion of an appeal, is due immediately upon issuance of the Board’s decision or upon completion of any judicial
review of the Board’s decision.

3. If the permittee fails to pay the required fee (or an y required portion of an appealed fee) within 90 days of the due date of the fee, the Depart ment may impose an additional assessment of 15% of the fee (or any required portion of an appeal ed fee) or $100, whichever is greater, plus interest on the fee (or any required portion of an appealed fee), computed at the interest rate established under 15-31-510(3), MCA.

I. Minor Permit Modifications ARM 17.8, Subchapter 12, Opera ting Permit Program §1226(3)&(11)

1. An application for a minor permit modification need only address in detail those portions of the permit application that require revision, updatin g, supplementation, or deletion, and may reference any required in formation that has been previously submitted.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 60 2. The permit shield under ARM 17.8.1214 will not extend to any minor modifications processed pursuant to ARM 17.8.1226.

J. Changes Not Requiring Permit Revision ARM 17.8, Subchapter 12, Operating Per mit Program §1224(1)-(3), (5)&(6)

1. The permittee is authorized to make changes w ithin the facility as described below, provided the following conditions are met:

a. The proposed changes do not require the permittee to obtain an air quality preconstruction permit under ARM Title 17, Chapter 8, Subchapter 7;

b. The proposed changes are not modifications under Title I of the FCAA, or as defined in ARM Title 17, Chapter 8, Subchapters 8, 9, or 10;

c. The emissions resulting from the proposed cha nges do not exceed the emissions allowable under this permit, whether expressed as a rate of emissions or in total emissions;

d. The proposed changes do not alter permit term s that are necessary to enforce applicable
emission limitations on emission un its covered by the permit; and

e. The facility provides the administrator and the Department with written notification at least 7 days prior to making the proposed changes.

2. The permittee and the Department shall attach each notice provided pursuant to 1.e above to their respective copies of this permit.

3. Pursuant to the conditions above, the permittee is authorized to make Section 502(b)(10) changes, as defined in ARM 17.8.1201(30), without a permit revision. For each such change, the written notification required under 1.e above shall include a description of the change within the source, the date on which the change will occur, any change in emissions, and any permit term or condition that is no longer applicable as a result of the change.

4. The permittee may make a change not specifically addressed or prohibited by the permit terms and conditions without requiring a permit revision, provided the following conditions are met:

a. Each proposed change does not weaken the enforceability of any existing permit conditions;

b. The Department has not objected to such change;

c. Each proposed change meets all applicable requirements and does not violate any existing permit term or condition; and

d. The permittee provides contemporaneous wr itten notice to the Department and the administrator of each change that is above the level for insignificant emission units as defined in ARM 17.8.1201(22) and 17.8.1206(3), and the written notice describes each such change, including the date of the change , any change in emissions, pollutants emitted, and any applicable requirement that would apply as a result of the change.

5. The permit shield authorized by ARM 17.8.1214 shall not apply to changes made pursuant to ARM 17.8.1224(3) and (5), but is applicable to terms and conditions that allow for increases and decreases in emissions pursuant to ARM 17.8.1224(4).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 61 K. Significant Permit Modifications ARM 17.8, Subchapter 12, Operati ng Permit Program §1227(1), (3)&(4)

1. The modification procedures set forth in 2 below must be used for any application requesting a significant modification of this permit. Signi ficant modifications include the following:

a. Any permit modification that does not qualify as either a minor modification or as an administrative permit amendment;

b. Every significant change in existing pe rmit monitoring terms or conditions;

c. Every relaxation of permit reporting or recor dkeeping terms or conditions that limit the Department’s ability to determine compliance with any applicable rule, consistent with the requirements of the rule; or

d. Any other change determined by the Department to be significant.

2. Significant modifications shall meet all require ments of ARM Title 17, Chapter 8, including those for applications, public participation, and re view by affected states and the administrator, as they apply to permit issuance and renewal, excep t that an application for a significant permit modification need only address in detail those porti ons of the permit application that require revision, updating, supplementation or deletion.

3. The permit shield provided for in ARM 17.8.1 214 shall extend to significant modifications.

L. Reopening for Cause ARM 17.8, S ubchapter 12, Oper ating Permit Program §1228(1)&(2)

This permit may be reopened and revi sed under the following circumstances:

1. Additional applicable requirements under the FCAA become applicable to the facility when the permit has a remaining term of 3 or more years. Reopening and revision of the permit shall be completed not later than 18 months after promulgation of the applicable requirement. No reopening is required under ARM 17.8.1228(1)(a) if the effective date of the applicable requirement is later than the date on which th e permit is due to expire, unless the original permit or any of its terms or conditions have been extended pursuant to ARM 17.8.1220(12) or 17.8.1221(2);

2. Additional requirements (including excess emission requirements) become applicable to an affected source under the Acid Rain Program. Upon approval by the administrator, excess emission offset plans shall be deemed incorporated into the permit;

3. The Department or the administrator determines th at the permit contains a material mistake or
that inaccurate statements were made in estab lishing the emission standards or other terms or conditions of the permit; or

4. The administrator or the Department determines that the permit must be revised or revoked and reissued to ensure compliance w ith the applicable requirements.

M. Permit Expiration and Renewal ARM 17.8, S ubchapter 12, Operating Permit Pr ogram §1210(2)(g), §1220(11)&(12), and §1205(2)(d)

1. This permit is issued for a fixed term of 5 years.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 62 2. Renewal of this permit is subject to the same procedural requirements that apply to permit issuance, including those for application, content, public participation, and affected state and
administrator review.

3. Expiration of this permit terminates the permittee’s right to operate unless a timely and administratively complete renewal applicati on has been submitted consistent with ARM 17.8.1221 and 17.8.1205(2)(d). If a timely and administratively complete application has been submitted, all terms and conditions of the permit, including the application shield, remain in effect after the permit expires until the pe rmit renewal has been issued or denied.

4. For renewal, the permittee shall submit a comple te air quality operating permit application to the Department not later than 6 months prior to the expiration of this permit, unless otherwise specified. If necessary to ensure that the terms of the existing permit will not lapse before renewal, the Department may specify, in wr iting to the permittee, a longer time period for submission of the renewal application. Such written notification must be provided at least 1 year before the renewal application due date established in the existing permit.

N. Severability Clause ARM 17.8, Subchapter 12, Opera ting Permit Program §1210(2)(i)&(l)

1. The administrative appeal or subsequent judicial review of the issuance by the Department of an initial permit under this subchapter sha ll not impair in any manner the underlying applicability of all applicable requirements, a nd such requirements continue to apply as if a final permit decision had not been reached by the Department.

2. If any provision of a permit is found to be i nvalid, all valid parts that are severable from the invalid part remain in effect. If a provision of a permit is invalid in one or more of its applications, the provision remains in effect in all valid applications that are severable from the invalid applications.

O. Transfer or Assignment of Ownership ARM 17.8, Subchapter 12, Oper ating Permit Program §1225(2)&(4)

1. If an administrative permit amendment involves a change in ownership or operational control, the applicant must include in its request to the Department a written agreement containing a specific date for the transfer of permit responsib ility, coverage and liability between the current and new permittee.

2. The permit shield provided for in ARM17.8.1214 shall not extend to administrative permit
amendments.

P. Emissions Trading, Marketable Permits, Economic Incentives ARM 17.8, Subchapter 12, Op erating Permit Program §1226(2)

Notwithstanding ARM 17.8.1226(1) and (7), mi nor air quality operating permit modification procedures may be used for permit modificati ons involving the use of economic incentives, marketable permits, emissions trading, and other si milar approaches, to the extent that such minor permit modification procedures are explicitly provide d for in the Montana State Implementation Plan or in applicable requirements promulgated by the administrator.

Q. No Property Rights Conveyed ARM 17.8, Subchapter 12, Oper ating Permit Program §1210(2)(d)

This permit does not convey any property rights of any sort, or any exclusive privilege.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 63 R. Testing Requirements ARM 17.8, Subchapter 1, General Provisions §105

The permittee shall comply with ARM 17.8.105.

S. Source Testing Protocol ARM 17.8, S ubchapter 1, General Provisions §106

The permittee shall comply with ARM 17.8.106.

T. Malfunctions ARM 17.8, S ubchapter 1, General Provisions §110

The permittee shall comply with ARM 17.8.110.

U. Circumvention ARM 17.8, S ubchapter 1, General Provisions §111

The permittee shall comply with ARM 17.8.111.

V. Motor Vehicles ARM 17.8, S ubchapter 3, Emission Standards §325

The permittee shall comply with ARM 17.8.325.

W. Annual Emissions Inventory ARM 17.8, Subchapter 5, Air Quality Permit A pplication, Operation and Open Burning Fees §505 (STATE ONLY)

The permittee shall supply the Department with annual production and other information for all emission units necessary to calculate actual or estimated actual amount of air pollutants emitted during each calendar year. Information shall be gathered on a calendar-year basis and submitted to the Department by the date required in the emi ssion inventory request, unless otherwise specified in this permit. Information shall be in the units required by the Department.

X. Open Burning ARM 17.8, S ubchapter 6, Open Burning §604, 605 and 606

The permittee shall comply with ARM 17.8.604, 605 and 606.

Y. Montana Air Quality Permits ARM 17.8, Subchapter 7, Permit, Construction a nd Operation of Air Contaminant Sources §745 and
764 (ARM 17.8.745(1) and 764(1)(b) are STATE ENFORCEABLE ONLY until approval by the EPA as part of the SIP)

1. Except as specified, no person shall construct, inst all, alter or use any air contaminant source or stack associated with any source without first obt aining a permit from the Department or Board. A permit is not required for those sources or stacks as specified by ARM 17.8.744(1)(a)-(k).

2. The permittee shall comply with AR M 17.8.743, 744, 745, 748, and 764.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 64 3. ARM 17.8.745(1) specifies de minimis chang es as construction or changed conditions of operation at a facility holding an air quality pr econstruction permit issued under Chapter 8 that does not increase the facility’s potential to emit by more than 15 tons per year of any pollutant, except (STATE ENFORCEABLE ONLY until approv ed by the EPA as part of the SIP):

a. Any construction or changed condition that would violate any condition in the facility’s existing air quality preconstruction permit or any applicable rule contained in Chapter 8 is prohibited, except as provided in ARM 17.8.745(2);

b. Any construction or changed conditions of operation that would qualify as a major modification under Subchapters 8, 9 or 10 of Chapter 8;

c. Any construction or changed c ondition of operation that would affect the plume rise or dispersion characteristic of emissions that w ould cause or contribute to a violation of an ambient air quality standard or ambient air increment as defined in ARM 17.8.804;

d. Any construction or improvement project with a potential to emit more than 15 tons per year may not be artificially split into smalle r projects to avoid air quality preconstruction permitting; or

e. Emission reductions obtained th rough offsetting within a facility are not included when determining the potential emission increase fro m construction or ch anged conditions of operation, unless such reductions are made federally enforceable.

4. Any facility making a de minimis change pursuant to ARM 17.8.745(1) shall notify the Department if the change would include a change in control equipment, stack height, stack diameter, stack gas temperature, source location or fuel specifications, or would result in an increase in source capacity above its permitted opera tion or the addition of a new emission unit. The notice must be submitted, in writing, 10 days prior to start up or use of the proposed de minimis change, or as soon as reasonably prac ticable in the event of an unanticipated circumstance causing the de minimis change, and must include the information requested in ARM 17.8.745(1) (STATE ENFORCEABLE ONLY until approval by the EPA as part of the SIP).

Z. National Emission Standard for Asbestos 40 CFR, Part 61, Subpart M

The permittee shall not conduct any asbestos abat ement activities except in accordance with 40 CFR 61, Subpart M (National Emission Standard for Hazardous Air Pollutants for Asbestos).

AA. Asbestos ARM 17.74, Subchapter 3, General Provisions and Subchapter 4, Fees

The permittee shall comply with ARM 17.74.301, et seq ., and ARM 17.74.401, et seq . (State only)

BB. Stratospheric Ozone Protection – Serv icing of Motor Vehicle A ir Conditioners 40 CFR, Part 82, Subpart B

If the permittee performs a service on motor vehicles and this service involves ozone-depleting substance/refrigerant in the motor vehicle air conditioner (MVAC), the permittee is subject to all the applicable requirements as specified in 40 CFR 82, Subpart B.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 65 CC. Stratospheric Ozone Protection – Recycling and Emission Reductions 40 CFR, Part 82, Subpart F

The permittee shall comply with the standards for recycling and emission reductions in 40 CFR 82, Subpart F, except as provided for MVACs in Subpart B:

1. Persons opening appliances for maintenance, service, repair, or disposal must comply with the required practices pursuant to §82.156;

2. Equipment used during the maintenance, service, re pair or disposal of appliances must comply with the standards for recycling and r ecovery equipment pursuant to §82.158;

3. Persons performing maintenance, service, repair or disposal of appliances must be certified by an approved technical certification program pursuant to §82.161;

4. Persons disposing of small appliances, M VACs and MVAC-like (as defined at §82.152) appliances must comply with recordkeep ing requirements pursuant to §82.166;

5. Persons owning commercial or industrial process re frigeration equipment must comply with the leak repair requirements pursuant to §82.156; and

6. Owners/operators of appliances normally containing 50 or more pounds of refrigerant must keep records of refrigerant purchased and adde d to such appliances pursuant to §82.166.

DD. Emergency Episode Plan

The perm ittee shall comply with the requirements c ontained in Chapter 9.7 of the State of Montana Air Quality Control Implementation Plan.

Each major source emitting 100 tons per year located in a Priority I Air Quality Control Region, shall submit to the Department a legally enforceable Em ergency Episode Action Plan (EEAP) that details how the source will curtail emissions during an ai r pollutant emergency episode. The industrial EEAP shall be in accordance with the Department ’s EEAP and shall be submitted according to a timetable developed by the Department, following Priority I reclassification.

EE. Definitions

Term s not otherwise defined in this permit or in the Definitions and Abbrev iations Appendix of this permit, shall have the meaning assigned to them in the referenced regulations.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 66 

# APPENDICESOP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 A-1 Appendix A INSIGNIFICANT EMISSION UNITS

Disclaimer: The information in this appendix is not Stat e or Federally enforceable, but is presented to assist Holcim, the permitting authority, inspectors, and the public.

Pursuant to ARM 17.8.1201(22)(a), an insignificant emission unit means any activity or emissions unit located within a source that: (i) has a potential to emit less than 5 tons per year of any regulated pollutant; (ii) has a potential to emit less than 500 pounds per year of lead; (iii) has a potential to emit less than 500 pounds per year of hazardous air pollutants listed pursuant to Sec. 7412 (b) of the FCAA; and (iv) is not regulated by an applicable requirement, other than a generally applicable requirement that applies to all emission units subject to Subchapter 12.

List of Insignificant Activities:

The following table of insignificant sources and/or act ivities were provided by Holcim. Because there are no requirements to update such a list, the emission un its and/or activities may change from those specified
in the table.

Emissions Unit ID Description EU002 Quarry Drilling EU004 Limestone, Sand and Shale Removal

EU016 Coal Storage Piles

EU017 Coke Storage Piles
EU039 Transfer of Reclaimed Clinker to Ground
EU052 Fuel Tanks EU056 Space Heating

EU057 Storage Pile for Finish Mill Material Handling System

EU058 Post Consumer Recycled Glass Piles EU063 Emergency GeneratorsOP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 B-1 Appendix B DEFINITIONS and ABBREVIATIONS

"Act" means the Clean Air Act, as amended, 42 U.S. 7401, et seq

.

"Administrative permit amendment" means an air quality operating permit revision that:

(a) Corrects typographical errors;

(b) Identifies a change in the name, address or pho ne number of any person identified in the air quality operating permit, or identifies a similar minor administrative change at the source;

(c) Requires more frequent monitoring or reporting by Holcim;

(d) Requires changes in monitoring or reporting requi rements that the Department deems to be no less stringent than current monitoring or reporting requirements;

(e) Allows for a change in ownership or operational control of a source if the Department has determined that no other change in the air qua lity operating permit is necessary, consistent with ARM 17.8.1225; or

(f) Incorporates any other type of change which the Department has determined to be similar to those revisions set forth in (a)-(e), above.

"Applicable requirement" means all of the following as they apply to emission units in a source requiring an air quality operating permit (including requi rements that have been promulgated or approved by the Department or the administrator through rule making at the time of issuance of the air quality operating permit, but have future-effective compliance dates, provided that such requirements apply to sources covered under the operating permit):

(a) Any standard, rule, or other requirement, including any requirement contained in a consent decree or judicial or administrative order entere d into or issued by the Department, that is contained in the Montana state implementa tion plan approved or promulgated by the administrator through rule making under Title I of the FCAA;

(b) Any federally enforceable term, condition or other requirement of any air quality preconstruction permit issued by the Department under Subchapters 7, 8, 9 and 10 of this chapter, or pursuant to regu lations approved or promulgated through rule making under Title I of the FCAA, including parts C and D;

(c) Any standard or other requirement under Sec. 7411 of the FCAA, including Sec. 7411(d);

(d) Any standard or other requirement under Sec. 7412 of the FCAA, including any requirement concerning accident prevention under Sec. 7412(r)(7), but excluding the contents of any risk management plan required under Sec. 7412(r);

(e) Any standard or other requirement of the acid rain program under Title IV of the FCAA or regulations promulgated thereunder;

(f) Any requirements established pursuant to Sec. 7661c(b) or Sec. 7414(a)(3) of the FCAA;

(g) Any standard or other requirement governing soli d waste incineration, under Sec. 7429 of the FCAA;OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 B-2 (h) Any standard or other requirement for c onsumer and commercial products, under Sec. 7511b(e) of the FCAA;

(i) Any standard or other requirement for ta nk vessels, under Sec. 7511b(f) of the FCAA;

(j) Any standard or other requirement of the regul ations promulgated to protect stratospheric ozone under Title VI of the FCAA, unless the administrator determines that such requirements need not be contained in an air quality operating permit;

(k) Any national ambient air quality standard or in crement or visibility requirement under part C of Title I of the FCAA, but only as it would ap ply to temporary sources permitted pursuant to Sec. 7661c(e) of the FCAA; or

(l) Any federally enforceable term or condition of any air quality open burning permit issued by the Department under Subchapter 6.

"Department" means the Montana Department of Environmental Quality.

“Excess Emissions” means any visible emissions from a stack or source, viewed during the visual surveys, that meets or exceeds 15% opacity (or 30% opacity if associ ated with a 40% opacity limit) during normal operating conditions.

"Emissions unit" means any part or activity of a stationary source that emits or has the potential to emit any regulated air pollutant or any pollutant listed under Sec. 7412(b) of the FCAA. This term is not
meant to alter or affect the definition of the te rm "unit" for purposes of Title IV of the FCAA.

"FCAA" means the Federal Clean Air Act, as amended.

"Federally enforceable" means all limitations and conditi ons which are enforceable by the administrator, including those requirements developed pursuant to 40 CFR Parts 60 and 61, requirements within the Montana state implementation plan, and any permit requirement established pursuant to 40 CFR 52.21 or under regulations approved pursuant to 40 CFR Part 51, Subpart I, including operating permits issued under an EPA approved program th at is incorporated into the Montana state implementation plan and expressly requires adhere nce to any permit issued under such program.

"Fugitive emissions" means those emissions which could not reasonably pass through a stack, chimney, vent, or other functionall y equivalent opening.

"General air quality operating permit" or "general permit" means an air quality operating permit that meets the requirements of ARM 17.8.1222, covers multip le sources in a source category, and is issued in lieu of individual permits being issued to each source.

"Hazardous air pollutant" means any air pollutant listed as a hazardous air pollutant pursuant to Sec. 112(b) of the FCAA.

"Non-federally enforceable requirement" means the following as they apply to emission units in a source requiring an air quality operating permit:

(a) Any standard, rule, or other requirement, including any requirement contained in a consent decree, or judicial or administrative order entered into or issued by the Department, that is not contained in the Montana state implementa tion plan approved or promulgated by the administrator through rule making under Title I of the FCAA;OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 B-3 (b) Any term, condition or other requirement contained in any air qualit y preconstruction permit issued by the Department under Subchapters 7, 8, 9 and 10 of this chapter that is not federally enforceable;

(c) Does not include any Montana ambient air quality st andard contained in Subchapter 2 of this chapter.

"Permittee" means the owner or operator of any source s ubject to the permitting requirements of this subchapter, as provided in ARM 17.8.1204, that hol ds a valid air quality operating permit or has submitted a timely and complete perm it application for issuance, renewal, amendment, or modification pursuant to this subchapter.

"Regulated air pollutant" means the following:

(a) Nitrogen oxides or any volatile organic compounds;

(b) Any pollutant for which a national ambient ai r quality standard has been promulgated;

(c) Any pollutant that is subject to any standard promulgated under Sec. 7411 of the FCAA;

(d) Any Class I or II substance subject to a standard promulgated under or established by Title VI of the FCAA; or

(e) Any pollutant subject to a standard or othe r requirement established or promulgated under Sec. 7412 of the FCAA, including but not limited to the following:

(i) Any pollutant subject to requirements under Sec. 7412(j) of the FCAA. If the administrator fails to promulgate a standard by the date established in Sec. 7412(e) of the FCAA, any pollutant for which a subject source would be major shall be considered to be regulated on the date 18 months after the app licable date established in Sec. 7412(e) of the FCAA;

(ii) Any pollutant for which the requirements of Sec. 7412(g)(2) of the FCAA have been met but only with respect to the individual source subject to Sec. 7412(g)(2) requirement.

"Responsible official" means one of the following:

(a) For a corporation: a president, secretary, treasurer, or vice-president of the corporation in charge of a principal business function, or a ny other person who performs similar policy or decision-making functions for the corporation, or a duly authorized representative of such person if the representative is responsible for the overall operation of one or more manufacturing, production, or operating facilities applying for or subject to a permit and
either:

(i) The facilities employ more than 250 persons or have gross annual sales or expenditures exceeding $25 million (in second quarter 1980 dollars); or

(ii) The delegation of authority to such re presentative is approved in advance by the Department.

(b) For a partnership or sole proprietorship: a ge neral partner or the proprietor, respectively.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 B-4 (c) For a municipality, state, federal, or other pub lic agency: either a pr incipal executive officer or ranking elected official. For the purposes of this part, a principal executive officer of a federal agency includes the chief executive officer having responsibility for the overall operations of a principal geographic unit of the agency (e.g., a regional administrator of the environmental protection agency).

(d) For affected sources: the designated representative in so far as actions, standards, requirements, or prohibitions under Title IV of the FCAA or the regulations promulgated thereunder are concerned, and the designated representative for any other purposes under this subchapter.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 B-5 Abbreviations:

ARM Administrative Rules of Montana ASTM American Society of Testing Materials BACT Best Available Control Technology BDT bone dry tons
BTU British Thermal Unit CFR Code of Federal Regulations
CO carbon monoxide DEQ Department of Environmental Quality dscf dry standard cubic foot dscfm dry standard cubic foot per minute EEAP Emergency Episode Action Plan EPA U.S. Environmental Protection Agency EPA Method Test methods contained in 40 CFR 60, Appendix A
EU emissions unit
FCAA Federal Clean Air Act gr grains HAP hazardous air pollutant IEU insignificant emissions unit
Mbdft thousand board feet Method 5 40 CFR 60, Appendix A, Method 5 Method 9 40 CFR 60, Appendix A, Method 9
MMbdft million board feet
MMBTU million British Thermal Units NOx oxides of nitrogen
NO 2 nitrogen dioxide
O 2 oxygen Pb lead PM particulate matter PM10 particulate matter less than 10 microns in size psi pounds per square inch
scf standard cubic feet
SIC Source Industrial Classification
SO 2 sulfur dioxide
SOx oxides of sulfur TPY tons per year
U.S.C. United States Code
VE visible emissions VOC volatile organic compoundOP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 C-1 Appendix C NOTIFICATION ADDRESSES

Compliance Notifications:

Montana Department of Environmental Quality Permitting and Compliance Division Air Resources Management Bureau
P.O. Box 200901 Helena, MT 59620-0901

United States EPA Air Program Coordinator Region VIII, Montana Office
10 W. 15 th Street, Suite 3200 Helena, MT 59626

Permit Modifications:

Montana Department of Environmental Quality Permitting and Compliance Division Air Resources Management Bureau
P.O. Box 200901 Helena, MT 59620-0901

Office of Partnerships and Regulatory Assistance Air and Radiation Program US EPA Region VIII 8P-AR 1595 Wynkoop Street Denver, CO 80202-1129OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 D-1 Appendix D AIR QUALITY INSPECTOR INFORMATION

Disclaimer: The information in this appendix is not State or Federally enforceable, but is presented to assist Holcim, permitting authority, inspectors, and the public.

1. Direction to Plant:

Exit Interstate 90 at the Three Forks/Trident, M ontana exit. Proceed north towards the Missouri River Headwaters Park. The facility is located nor th of the Headwaters Park with the main office located just east of the railroad tracks.

2. Safety Equipment Required:

Anyone entering the Holcim facility shall, at a mi nimum, have and utilize the following personnel protective equipment:

a. Hard Hat,
b. Safety Glasses,

c. Hearing Protection, and
d. Protective Footwear.

Additional personnel protective equipment may be required at the direction of a Holcim representative.

3. Facility Plot Plan:

A copy of the facility Plot Plan is on file with the Department or may be received by contacting a Holcim representative.OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 E-1 Appendix E POLLUTION CONTROL DEVICE INSPECTION AND MAINTENANCE PLAN

Although the hard copy of Appendix E has been remo ved from the permit, the contents of Appendix E, Pollution Control Device Inspection and Maintenance Plan , remain as applicable requirements as stated in the Title V Operating Permit #0982-02. To receive a ha rd copy of this appendix, please contact one of the following:

The Department of Environmental Quality Permitting and Compliance Division Air Resources Management Bureau
1520 E. Sixth Ave.
P.O. Box 200901 Helena, MT 59620-0901 Bureau Telephone # (406) 444-3490

OR

Holcim (US), Inc.
4070 Trident Road Three Forks, MT 59752OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 F-1 Appendix F COMPLIANCE ASSURANCE MONITORING (CAM)

I. Emitting Unit: EU021 – Kiln
Pollutant: PM 10 Control Device: ESP
Emission Limit: 0.77 lb/ton Clinker Monitoring Approach: Key elements of the monitoring approach for this CAM applicable emitting unit are contained in Table I. A complete CAM plan is contained in Holcim’s application for Title V operating permit renewal (#0982-01) a nd is on file with the Department. Complete copies of this CAM plan are available from the Department upon request.

Table I

A. General Criteria
Indicator ESP Power

Measurement Approach Electrical power input is measured using a voltmeter and an ammeter. The total power (P) input to the ESP is the sum of the products of the secondary voltage (V) and current (I) in each field. (P = V 1 I 1 + V 2 I 2 ).

Indicator Range Due to the nature of ESP’s, only a lower end value will be established for power input. An excursion occurs if the hourly average power input drops below its respective hourly average
indicator value. The indicator value will be established during a source test (See stack test below). An excursion triggers an inspection, corrective action, and a reporting requirement.

B. Performance Criteria

Data Representativeness The voltage and current are measured using the instrumentation (voltmeter and ammeter) specifically designed and installed on the ESP to measure and control the performance of the ESP.. Verification of Op erational Status Continuous monitoring of total ESP power input (kW).

Quality Assurance/Quality Control Validate voltmeter and ammeter ou tput on an annual basis in accordance with good e ngineering practices. Monitoring Frequency Continuous (at least every minute)

Data Collection Procedures The secondary voltage monitor and current monitor will measure their respective values on a one minute or less basis. The plant will calculate a one-hour block kW arithmetic mean
value based on the available values. The data will be permanently stored in the plant data historian. Averaging Period One-hour block average.

Stack Test/Monitoring Initiation After Department approval of the CAM Plan, Holcim will schedule and conduct Method 5 testing to establish a suitable minimum power indicator value. The indicator value shall be 80% of the lowest average power (kW) applied to the ESP over the duration of any one run that resulted in emissions less than the emission limit during the afore mentioned test. The indicator value shall be established as expeditiously as practicable after Department approval (Department Decision on OP0982-01) but in no case shall the establishment of the indicator value prevent monitoring from beginning within 180 days after Department approval of the permit (ARM 17.8.1508(4)).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 F-2 II. Emitting Unit: EU022 – Clinker Cooler
Pollutant: PM 10 Control Device: Baghouse
Emission Limit: E = 55.0P 0.11 -40 Monitoring Approach: Key elements of the monitoring approach for this CAM applicable emitting unit are contained in Table II. A complete CAM plan is contained in Holcim’s application for Title V operating permit renewal (#0982-01) a nd is on file with the Department. Complete copies of this CAM plan are available from the Department upon request.

Table II

A. General Criteria
Indicator Baghouse differential pressure.

Measurement Approach Inlet and outlet of the baghouse is monitored using a differential pressure transducer. The signal from the pressure transducer is recorded using a data acquisition system. One-minute differential pressure values collected will be summed and averaged every 24 hours.

Indicator Range An excursion is defined as a daily average differential pressure of below 1.0 or above 10 inches of water pressure. An excursion triggers an inspectio n and possible corrective action.

B. Performance Criteria

Data Representativeness Pressure drop across the baghouse is measured across the tube sheet. The minimum accuracy of the device is ± 1 inch of

water. Verification of Op erational Status Pressure drop is continuously monitored and recorded.

Quality Assurance/Quality Control Pressure transducer is ca librated in accordance with
manufacturer’s recommendations. Monitoring Frequency Every minute

Data Collection Procedures Inlet and outlet of the baghouse is monitored using a differential pressure transducer. The signal from the pressure transducer is recorded using a data acquisition system. The data will be permanently stored in the plant data historian. Averaging Period 24-hour

Monitoring Initiation The monitoring shall commence as expeditiously as practicable after Department approval (Dep artment Decision on OP0982- 01) but no later than 180 days after Department approval of the permit (ARM 17.8.1508(4)).OP0982-02 Date of Decision: 03/24/09
Effective Date: 04/24/09 F-3 III. Emitting Units: EU032, EU034, and EU037 – Finish Mills #2, #3, and #4
Pollutant: PM 10 Control Device: Pulse Jet Baghouses
Emission Limit: 0.02 gr/dscm (EU032 only), E = 55.0P 0.11 -40 (EU034 and EU037 only) Monitoring Approach: Key elements of the monitoring approach for this CAM applicable emitting unit are contained in Table III. A complete CAM plan is contained in Holcim’s application for Title V operating permit renewal (#0982-01) a nd is on file with the Department. Complete copies of this CAM plan are available from the Department upon request.

Table III

A. General Criteria
Indicator Baghouse differential pressure.

Measurement Approach Inlet and outlet of the baghouses is monitored using a differential pressure transducer. The signal from the pressuretransducer is recorded using a data acquisition system. Oneminute differential pressure values collected will be summed and averaged every 24 hours.

Indicator Range An excursion is defined as a daily average differential pressure of below 2.5 or above 10 inches of water pressure. An excursion triggers an inspectio n and possible corrective action.

B. Performance Criteria

Data Representativeness Pressure drop across the baghouses is measured across the tube sheet. The minimum accuracy of the device is ± 1 inch of

water. Verification of Op erational Status Pressure drop is continuously monitored and recorded.

Quality Assurance/Quality Control Pressure transducer is ca librated in accordance with
manufacturer’s recommendations. Monitoring Frequency Every minute

Data Collection Procedures Inlet and outlet of the baghouses is monitored using a differential pressure transducer. The signal from the pressure transducer is recorded using a data acquisition system. The data will be permanently stored in the plant data historian. Averaging Period 24-hour

Monitoring Initiation The monitoring shall commence as expeditiously as practicable after Department approval (Dep artment Decision on OP0982- 01) but no later than 180 days after Department approval of the permit (ARM 17.8.1508(4)).