Joe Manchin, III Randy C. Huffman

Governor Cabinet Secretary

West Virginia Department of Environmental Protection 

Division of Air Quality 

Permit to Operate

 

Pursuant to 

Title V 

of the Clean Air Act

Issued to:

Guardian Industries

Guardian Fiberglass Inc., Inwood, WV

R30-00300012-2008

John A. Benedict

Director

Issued: October 1, 2008 • Effective: October 15, 2008

Expiration: October 1, 2013 • Renewal Application Due: April 1, 2013
Title V Operating Permit R30-00300012-2008 MM01 Page 2 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

Permit Number: R30-00300012-2008

Permittee: Guardian Fiberglass Inc.

Facility Name: Inwood Plant

Mailing Address: 4812 Tabler Station Road, Inwood, West Virginia 25428

This permit is issued in accordance with the West Virginia Air Pollution Control Act (West Virginia Code §§ 22-5-1 et seq.) and 

45CSR30 — Requirements for Operating Permits. The permittee identified at the above-referenced facility is authorized to 

operate the stationary sources of air pollutants identified herein in accordance with all terms and conditions of this permit.

Facility Location: Inwood, Berkeley County, West Virginia

Mailing Address: 4812 Tabler Station Road, Inwood, WV 25428

Telephone Number: (304) 267-6085

Type of Business Entity: Corporation

Facility Description: Manufacturing of Wool Fiberglass Insulation

SIC Codes: 3296 Primary; None Secondary; None Tertiary

UTM Coordinates: 756.55 km Easting $ 4365.50 km Northing $ Zone 17

Permit Writer: Denton McDerment

Any person whose interest may be affected, including, but not necessarily limited to, the applicant and any person who 

participated in the public comment process, by a permit issued, modified or denied by the Secretary may appeal such action of

the Secretary to the Air Quality Board pursuant to article one [§§ 22B-1-1 et seq.], Chapter 22B of the Code of West Virginia. 

West Virginia Code §22-5-14.

Issuance of this Title V Operating Permit does not supersede or invalidate any existing permits under 45CSR13, 14 or 19, 

although all applicable requirements from such permits governing the facility's operation and compliance have been 

incorporated into the Title V Operating Permit.
Title V Operating Permit R30-00300012-2008 MM01 Page 3 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

Table of Contents

1.0. Emission Units and Active R13, R14, and R19 Permits........................................................5

1.1. Emission Units....................................................................................................................5

1.2. Active R13, R14, and R19 Permits...................................................................................12

2.0. General Conditions................................................................................................................13

2.1. Definitions.........................................................................................................................13

2.2. Acronyms..........................................................................................................................13

2.3. Permit Expiration and Renewal.........................................................................................14

2.4. Permit Actions ..................................................................................................................14

2.5. Reopening for Cause.........................................................................................................14

2.6. Administrative Permit Amendments.................................................................................15

2.7. Minor Permit Modifications..............................................................................................15

2.8. Significant Permit Modification........................................................................................15

2.9. Emissions Trading.............................................................................................................15

2.10. Off-Permit Changes ..........................................................................................................15

2.11. Operational Flexibility ......................................................................................................16

2.12. Reasonably Anticipated Operating Scenarios...................................................................17

2.13. Duty to Comply.................................................................................................................17

2.14. Inspection and Entry .........................................................................................................17

2.15. Schedule of Compliance ...................................................................................................18

2.16. Need to Halt or Reduce Activity not a Defense ................................................................18

2.17. Emergency ........................................................................................................................18

2.18. Federally-Enforceable Requirements................................................................................19

2.19. Duty to Provide Information .............................................................................................19

2.20. Duty to Supplement and Correct Information ...................................................................19

2.21. Permit Shield.....................................................................................................................20

2.22. Credible Evidence.............................................................................................................20

2.23. Severability .......................................................................................................................20

2.24. Property Rights .................................................................................................................20

2.25. Acid Deposition Control ...................................................................................................20

3.0. Facility-Wide Requirements..................................................................................................22

3.1. Limitations and Standards.................................................................................................22

3.2. Monitoring Requirements .................................................................................................25

3.3. Testing Requirements........................................................................................................27

3.4. Recordkeeping Requirements ...........................................................................................34

3.5. Reporting Requirements....................................................................................................36

3.6. Compliance Plan ...............................................................................................................40

3.7. Permit Shield.....................................................................................................................40
Title V Operating Permit R30-00300012-2008 MM01 Page 4 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

4.0. Raw Material Handling Operations (Group 001) Requirements ...................................... 42

4.1. Limitations and Standards.................................................................................................42

4.2. Monitoring Requirements .................................................................................................43

4.3. Testing Requirements........................................................................................................44

4.4. Recordkeeping Requirements ...........................................................................................44

4.5. Reporting Requirements....................................................................................................44

4.6. Compliance Plan ...............................................................................................................44

5.0. Melting & Refining Lines #1 & #2 (Groups 002 & 003) Requirements ............................ 45

5.1. Limitations and Standards.................................................................................................45

5.2. Monitoring Requirements .................................................................................................46

5.3. Testing Requirements........................................................................................................47

5.4. Recordkeeping Requirements ...........................................................................................47

5.5. Reporting Requirements....................................................................................................48

5.6. Compliance Plan ...............................................................................................................48

6.0. Forming & Collecting Line #1 & #2 (Groups 004 & 005) Requirements.......................... 49

6.1. Limitations and Standards.................................................................................................49

6.2. Monitoring Requirements .................................................................................................50

6.3. Testing Requirements........................................................................................................51

6.4. Recordkeeping Requirements ...........................................................................................51

6.5. Reporting Requirements....................................................................................................52

6.6. Compliance Plan ...............................................................................................................52

7.0. Curing & Cooling Line #1 & #2 (Groups 006 & 007) Requirements................................ 53

7.1. Limitations and Standards.................................................................................................53

7.2. Monitoring Requirements .................................................................................................54

7.3. Testing Requirements........................................................................................................55

7.4. Recordkeeping Requirements ...........................................................................................55

7.5. Reporting Requirements....................................................................................................55

7.6. Compliance Plan ...............................................................................................................55

8.0. Facing, Sizing & Packing Line #1 & #2 (Group 008) Requirements ................................ 56

8.1. Limitations and Standards.................................................................................................56

8.2. Monitoring Requirements .................................................................................................56

8.3. Testing Requirements........................................................................................................56

8.4. Recordkeeping Requirements ...........................................................................................56

8.5. Reporting Requirements....................................................................................................56

8.6. Compliance Plan ...............................................................................................................56

9.0. Supporting Facilities (Group 009) Requirements ...............................................................57

9.1. Limitations and Standards.................................................................................................57

9.2. Monitoring Requirements .................................................................................................59

9.3. Testing Requirements........................................................................................................59

9.4. Recordkeeping Requirements ...........................................................................................59

9.5. Reporting Requirements....................................................................................................59

9.6. Compliance Plan ...............................................................................................................60
Title V Operating Permit R30-00300012-2008 MM01 Page 5 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

1.0. Emission Units and Active R13, R14, and R19 Permits

1.1 Emission Units

Emission 

Unit ID

Emission 

Point ID Emission Unit Description Year Installed

Design 

Capacity

Control 

Device

RAW MATERIAL HANDLING OPERATIONS (Group 001)

ES1A FP11 Raw Material Storage Bin for Sand 07/25/1998 178.35 Tons CD1A

CD1A FP11 Whirl-Air Flow Bin Vent DC 07/25/1998 585 acfm None

Model: 195-42

ES1B FP11 Raw Material Storage Bin for Borax 07/25/1998 137.45 tons CD1B

CD1B FP11 Whirl-Air Flow Bin Vent DC 07/25/1998 585 acfm None

Model: 195-42

ES1C FP11 Raw Material Storage Bin for Borax 07/25/1998 137.45 tons CD1B

ES1D FP11 Raw Material Storage Bin for Soda Ash 07/25/1998 137.45 tons CD1D

CD1D FP11 Whirl-Air Flow Bin Vent DC 07/25/1998 585 acfm None

Model: 195-42

ES1E FP11 Raw Material Storage Bin for Soda Ash 07/25/1998 137.45 tons CD1D

ES1F FP11 Raw Material Storage Bin for Aplite 07/25/1998 137.45 tons CD1F

ES1J FP11 Raw Material Storage Bin for Cullet 07/25/1998 137.45 tons CD1F

CD1F FP11 Whirl-Air Flow Bin Vent DC 07/25/1998 585 acfm None

Model: 195-42

ES1G FP11 Raw Material Storage Bin for Lime 07/25/1998 109.5 tons CD1G

CD1G FP11 Whirl-Air Flow Bin Vent DC 2 07/25/1998 585 acfm None

Model: 195-42

ES1H FP11 Raw Material Storage Bin for Cullet 07/25/1998 108.50 Tons CD1I

ES1I FP11 Raw Material Storage Bin for Cullet 07/25/1998 108.50 Tons CD1I

CD1I FP11 Whirl-Air Flow Bin Vent DC 07/25/1998 585 acfm None

Model: 195-42

ES1K FP11 Raw Material Storage Bin for Baghouse Dust 07/25/1998 75.00 tons CD1K

CD1K FP11 Whirl-Air Flow Bin Vent DC 07/25/1998 165 acfm None

Model: 55-30

ES12A FP11 Batch Mixer Receiving Bin for 1st and 2nd 

Line

07/25/1998 8,000 lbs. CD12A

CD12A FP11 Whirl-Air Flow Bin Vent DC 07/25/1998 1,035 acfm None

Model: 345-56

ES22A FP11 Batch Mixer Receiving Bin for 2nd Line 2004 8,000 lbs. CD22A

CD22A FP11 IAC Bin-Vent 07/25/1998 2,917 acfm None

Model: 96TB-FRIP

ES12B FP11 Mixed Batch Storage backup day bin for 1st 

Line

07/25/1998 21.72 tons CD12D

CD12D FP11 Whirl-Air Flow Bin Vent DC 07/25/1998 390 acfm None

Model: 130-42

ES22B FP11 Mixed Batch Storage Day Bin for 2nd Line 2004 6.675 tons CD22C

CD22C FP11 IAC Bin-Vent 07/25/1998 2,917 acfm None

Model: 96TB-FRIP
Title V Operating Permit R30-00300012-2008 MM01 Page 6 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

Emission 

Unit ID

Emission 

Point ID Emission Unit Description Year Installed

Design 

Capacity

Control 

Device

ES22Bb FP11 Mixed Batch Storage Backup Day Bin for 

2nd Line

2004 42 tons CD22C

ES12D FP11 Mixed Batch Storage Day Bin for 1st Line 07/25/1998 39.0 tons CD12C

CD12C FP11 Whirl-Air Flow Bin Vent DC 07/25/1998 690 acfm None

Model: 230-56

ES12Db FP11 Mixed Batch Storage Silo for 1st Line 07/25/1998 1.31 tons CD12Cb

CD12Cb FP11 Whirl-Air Flow Bin Vent DC 07/25/1998 795 acfm None

Model: 265-42

TANKS (Group 001)

T3 FP11 Resin Storage Tank 07/25/1998 4,500 gallons NA

T4 FP11 Resin Storage Tank 07/25/1998 4,500 gallons NA

T5 FP11 Resin Storage Tank 07/25/1998 4,500 gallons NA

T6 FP11 Resin Storage Tank 07/25/1998 4,500 gallons NA

T7A FP11 Dedusting Oil/Wax Emulsion Storage Tank 07/25/1998 4,787 gallons NA

T7B FP11 Dedusting Oil/Wax Emulsion Tank 07/25/1998 4,787 gallons NA

T8 FP11 Ammonia (aqueous) Storage Tank 07/25/1998 6,000 gallons NA

M1 FP11 Pre-React Mix Tank 07/25/1998 1,200 gallons NA

Tank Type: Fixed Covers, an access hatch 

with cover, and an opening for the Mixing 

Impeller Shaft.

M2 FP11 Pre-React Holding Tank 07/25/1998 1,700 gallons NA

Tank Type: Fixed Covers, an access hatch 

with cover, and an opening for the Mixing 

Impeller Shaft.

M3 FP11 Pre-React Holding Tank 07/25/1998 3,200 gallons NA

M4 FP11 Additive Mix Tank 07/25/1998 150 gallons NA

M5 FP11 Mix Binder Tank 07/25/1998 1,700 gallons NA

M6 FP11 Pre-React Holding Tank 07/25/1998 50 gallons NA

M7 FP11 Ammonia (aqueous) Storage Tank 07/25/1998 50 gallons NA

M8 FP11 Process Water Tank 07/25/1998 50 gallons NA

M9 FP11 Additive Tank 07/25/1998 50 gallons NA

M10 FP11 Binder Holding Tank 2008 1,500 gallons

FP11 In-Plant Fugitive Emissions Released 07/25/1998 NA

MELTING & REFINING LINE 1 (Group 002) [8,000 lbs/hr or 35,040 TPY Production Rate]

ES12C EP12 Melter Hood for 1st Line 07/25/1998 4.56 TPH of glass 

batch; 4.0 TPH of 

melted glass

CD12B & 

Custom Built by Guardian Fiberglass CD12Bb

CD12B EP12 Mactiflo Cartridge Dust Collector Filter 2 07/25/1998 15,000 acfm None

Model: MAC 4 – MTF96

Configuration: Closed Pressure

Filter Material: Polyester Cartridge Filter

Cleaning Method: Pulse Air

Captured Efficiency: 99%

Filter Area: 28,320 ft
Title V Operating Permit R30-00300012-2008 MM01 Page 7 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

Emission 

Unit ID

Emission 

Point ID Emission Unit Description Year Installed

Design 

Capacity

Control 

Device

CD12Bb

(Backup)

EP12 Mactiflo Cartridge Dust Collector 07/25/1998 10,000 acfm None

Model: MactFlo 4MTF32 Filter

Configuration: Closed Pressure

Filter Material: Polyester cartridge filter

Cleaning Method: Pulse Air

Captured Efficiency: 99%

Filter Area: 3,520 ft2

ES12E EP12 

and 

EP13

Forehearth for 1st Line 07/25/1998 8,000 lbs/hr of 

Molten Glass

CD13A & 

Natural Gas Fired Brick Holding Process CD13B

Heater Tank

Max Heat Input Rate: 5.5 MMBtu/hr

Custom Design by Guardian Fiberglass

CD13A EP13 Water Spray with Dropout Boxes 07/25/1998 40,000 cfm None

Type: Wet Collecting System

Captured Efficiency: 99%

CD13B EP12 Water Spray with Dropout Boxes 07/25/1998 40,000 cfm None

Type: Wet Collecting System

Captured Efficiency: 99%

MELTING & REFINING LINE 2 (Group 003) [8,000 lbs/hr or 35,040 TPY Production Rate] 

ES22C EP22 Melter Hood for 2nd Line 2004 4.56 TPH of glass 

batch; 4.0 TPH of 

melted glass

CD22B & 

Custom Built by Guardian Fiberglass CD22Bb

CD22B

(duty 

cycled)

EP22 Mactiflo Cartridge Dust Collector 2004 15,000 acfm None

Model: MAC 4 – MTF96

Filter Configuration: Closed Pressure

Filter Material: Fabric Filter

Cleaning Method: Pulse Air

Captured Efficiency: 99%

Filter Area: 28,320 ft2

CD22Bb

(duty 

cycled)

EP22 Mactiflo Cartridge Dust Collector 2004 15,000 acfm None

Model: MAC 4 – MTF96

Filter Configuration: Closed Pressure

Filter Material: Fabric Filter

Cleaning Method: Pulse Air

Captured Efficiency: 99%

Filter Area: 28,320 ft2

ES22E EP23 Forehearth for 2nd Line 2004 8,000 lbs/hr of 

Molten Glass

CD23A, 

CD23B, 

CD23C Natural Gas Fired Brick Holding Process 

Heater Tank

Max Heat Input Rate: 6.0 MMBtu/hr

Custom Design by Guardian Fiberglass
Title V Operating Permit R30-00300012-2008 MM01 Page 8 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

Emission 

Unit ID

Emission 

Point ID Emission Unit Description Year Installed

Design 

Capacity

Control 

Device

CD23A EP23 Water Venturi Scrubbers 2004 40,000 cfm None

Manufacturer: Fisher-Klosterman, Inc

Model: MS-850H

Captured Efficiency: 85 %

Scrubbing Liquid: Water

CD23B EP23 Water Venturi Scrubbers 2004 40,000 cfm None

Manufacturer: Fisher-Klosterman, Inc

Model: MS-850H

Captured Efficiency: 85 %

Scrubbing Liquid: Water

CD23C

(non- resinated)

EP23 Water Venturi Scrubbers 2004 20,000 cfm None

Manufacturer: Fisher-Klosterman, Inc.

Model: MS-650H

Captured Efficiency: 85 %

Scrubbing Liquid: Water

FORMING & COLLECTING 1 (Group 004)

ES13A EP13 Fiber Forming Units with Advanced WaterJet Rings Forming Process Heater 07/25/1998 8,000 lbs/hr CD13A & 

CD13B

Natural Gas Fired

Max Heat Input Rate: 8.40 MMBtu/hr

Custom Design by Guardian Fiberglass

ES13B EP13 Vacuum Chamber for 1st Line 07/25/1998 8,000 lbs/hr CD13A & 

Custom Design by Guardian Fiberglass CD13B

ES13C EP13 Collection Plenum for 1st Line 07/25/1998 8,000 lbs/hr CD13A & 

Custom Design by Guardian Fiberglass CD13B

FORMING & COLLECTING 2 (Group 005)

ES23A EP23 Fiber Forming Units with Advanced WaterJet Rings Forming Process Heaters 2004 8,000 lbs/hr CD23A, 

CD23B, 

Natural Gas Fired CD23C

Max Heat Input Rate: 9.60 MMBtu/hr

Custom Design by Guardian Fiberglass

ES23B EP23 Vacuum Chamber for 2nd Line 2004 8,000 lbs/hr CD23A, 

CD23B, 

CD23C Custom Design by Guardian Fiberglass

ES23C EP23 Collection Plenum for 2nd Line 2004 8,000 lbs/hr CD23A, 

CD23B,

CD23C Custom Design by Guardian Fiberglass

CURING & COOLING LINE 1 (Group 006)

ES14A EP14 3 Zone Curing Oven for 1st Line 07/25/1998 8,000 lbs/hr CD14A

Manufacturer: B&M Steel of New Castle 

Indiana

Natural Gas Fired

Max Heat Input Rate: 18.0 MMBtu/hr
Title V Operating Permit R30-00300012-2008 MM01 Page 9 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

Emission 

Unit ID

Emission 

Point ID Emission Unit Description Year Installed

Design 

Capacity

Control 

Device

CD14A EP14 Thermal Oxidizer 07/25/1998 2.628 MMft3 / hr 

at 150.0 oF

None

Manufacturer: United McGill Corp.

Model No.: 2-151C306

Captured Efficiency: 95% for VOC

ES14B EP14 Cooling Table for 1st Line 07/25/1998 8,000 lbs/hr CD14A

CURING & COOLING LINE 2 (Group 007)

ES24A EP24 3 Zone Curing Oven for 1st Line 

Manufacturer: B&M Steel of New Castle 

Indiana 

Natural Gas Fired 

Max Heat Input Rate: 18.0 MMBtu/hr

2004 8,000 lbs/hr CD24A

CD24A EP24 McGill AirClean RTO Thermal Oxidizer 

Manufacturer: McGill AirClean 

Model No.: MCT 30.0 

Captured Efficiency: 95 % for VOC

2004 1.785 MMft3 / hr 

at 250.0 oF

None

ES24B EP24 Cooling Table for 2nd Line 2004 8,000 lbs/hr CD24B

CD24B EP24 Venturi Scrubber 2004 20,000 cfm None

Manufacturer: Fisher-Klosterman, Inc.

Model: MS-650H

Captured Efficiency: 85 %

Scrubbing Liquid: Water

FACING SIZING & PACKAGING FOR LINE 1 (Group 008)

ES15A FP15 Hot Roll – Facing Application 07/25/1998 50-400oF @ 180 

GPM

None

Manufacturer: Budzar

Model No.: 10T-180180-G0L

Type: Electric Hot Oil Heater

ES15Aa FP15 Infrared Radiation – Facing Application 2004 50-400oF @ 200 

amps

CD15A

Manufacturer: Solaronics IRT

Model No. IRT-MiniFlex

Type: Electric

ES15B FP15 Slitter Saw 07/25/1998 NA CD15A

Manufacturer: Guardian Fiberglass

Model No.: NA

Type: NA

CD15A FP15 Wet Collection System (Dynamic Separator) 07/25/1998 20,000 cfm None

Manufacturer: Quentin Keeney

Type: Air Tumber

Model No.: 35-W-C

Captured Efficiency: 80 %

ES15C FP15 EdgeTrimmer and Dicers (or Cubes) 07/25/1998 NA CD15A

Manufacturer: Guardian Fiberglass

Model No.: NA

Type: NA
Title V Operating Permit R30-00300012-2008 MM01 Page 10 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

Emission 

Unit ID

Emission 

Point ID Emission Unit Description Year Installed

Design 

Capacity

Control 

Device

ES15D FP15 Choppers 07/25/1998 NA CD15A

Manufacturer: United Tool

Model No.: UX-431

Type: NA

ES15E FP15 Roll Up 07/25/1998 NA CD15A

Manufacturer: Kaibel & Sieber

Model No.: WM87-3000

Type: NA

ES15F FP15 Batt Folder 07/25/1998 NA CD15A

Manufacturer: Guardian Fiberglass

Model No.: NA

Type: NA

ES15G FP15 Batt Packers 07/25/1998 NA CD15A

Manufacturer: Guardian Fiberglass

Model No.: NA

Type: NA

ES15H FP15 Dicers or Cubers 07/25/1998 NA CD15A

Manufacturer: Guardian Fiberglass

Model No.: NA

Type: NA:

ES15I FP15 Blowing Wool Bagger 07/25/1998 NA CD15A

Manufacturer: Guardian Fiberglass

Model No.: NA

Type: NA

ES15J FP15 Ring Wrapper 07/25/1998 NA CD15A

Manufacturer: Samuel Strapping Systems

Model No. SOA750

Type: NA

FACING SIZING & PACKAGING FOR LINE 2 (Group 008)

ES25A FP15 Infrared Radiation – Facing Application 2004 50-400 oF @ 

200 amps

None

Manufacturer: Solartronics IRT

Model No.: IRT-MiniFlex

Type: Electric

ES25B FP15 Slitter Saw 2004 NA CD25A

Manufacturer: Guardian Fiberglass

Model No.: NA

Type: NA

CD25A Water Venturi Scrubbers 2004 20,000 cfm None

Manufacturer: Fisher-Klosterman, Inc.

Model: MS-650H

Captured Efficiency: 85 %

Scrubbing Liquid: Water

ES25C FP15 EdgeTrimmer and Dicers (or Cubes) 2004 NA CD25A

Manufacturer: Guardian Fiberglass

Model No.: NA
Title V Operating Permit R30-00300012-2008 MM01 Page 11 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

Emission 

Unit ID

Emission 

Point ID Emission Unit Description Year Installed

Design 

Capacity

Control 

Device

Type: NA

ES25D FP15 Choppers 2004 NA CD25A

Manufacturer: United Tool

Model No.: UX-431

Type: NA

ES25F FP15 Batt Folder 2004 NA CD25A

Manufacturer: Guardian Fiberglass

Model No.: NA

Type: NA

ES25G FP15 Batt Packers 2004 NA CD25A

Manufacturer: Guardian Fiberglass

Model No.: NA

Type: NA

ES25H FP15 Dicers or Cubers 2004 NA CD25A

Manufacturer: Guardian Fiberglass

Model No.: NA

Type: NA

ES25I FP15 Blowing Wool Bagger 2004 NA CD25A

Manufacturer: Guardian Fiberglass

Model No.: NA

Type: NA

ES25J FP15 Dicers 2004 NA CD25A

Manufacturer: Guardian Fiberglass

Model No.: NA

Type: NA

CD25B FP15 Bag Filter Dust Collector 2004 NA None

Manufacturer: Guardian Fiberglass

Type: Fabric Filter

Captured Efficiency: 90 %

ES25K FP15 Silicone & De-Dusting Oil Application 2004 NA CD25B

Manufacturer: Guardian Fiberglass

Model No.: NA

Type: NA

ES25L FP15 Blowing Wool Bagger 2004 NA CD25B

Manufacturer: Guardian Fiberglass

Model No.: NA

Type: NA

SUPPORT FACILITIES (Group 009)

ESDG12 EP16 Emergency Generator 07/25/1998 Limited to 500 

Hours of 

Operations 

None

Manufacture: Caterpillar 

Diesel Fired Internal Combustion Engine

Model No.: 3406 400.2 
Title V Operating Permit R30-00300012-2008 MM01 Page 12 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

Emission 

Unit ID

Emission 

Point ID Emission Unit Description Year Installed

Design 

Capacity

Control 

Device

Fuel: Diesel MMBtu/hour-heat

ESDG13 EP17 Emergency Backup Generator 2004 Limited to 500 

Hours of 

Operations 

None

Manufacture: Caterpillar 

Diesel Fired Internal Combustion Engine

Model No.: 3456 400.2 

MMBtu/hour-heat Fuel: Diesel

ESFW11 EP18 Emergency Fire Water 07/25/1998 1,000 Gallons of 

Diesel Fuel 

None

Manufacturer: Cummins 

Diesel Fired Internal Combustion Engine

Model No.: NT-855-F1

Horsepower: 255 HP

Fuel: Diesel

ESSHB14 EP21 Space Heating Boiler 

1975

14.646 MMBtu/hr

Type: Horizontally Fired

Fuel: Pipeline Quality Natural Gas

14.6 MMBtu/hr

ESHW15 EP20 5-0.075 MMBtu/hr Water Heater 07/25/1998 0.375 MMBtu/hr

Fuel: Pipeline Quality Natural Gas

ESSH15 EP19 8.5 MMBtu/hr Makeup Air Handling Unit 07/25/1998 8.5 MMBtu/hr

Fuel: Pipeline Quality Natural Gas

ESSH16 EP22 Air Handling Unit; Rapid Engineering, 

Model 4089

2004 7.875 MMBtu/hr

Fuel: Pipeline Quality Natural Gas

1.2. Active R13, R14, and R19 Permits

The underlying authority for any conditions from R13, R14, and/or R19 permits contained in this operating permit is 

cited using the original permit number (e.g. R13-1234). The current applicable version of such permit(s) is listed 

below:

Permit Number Date of Issuance

R14-0015J March 3, 2009
Title V Operating Permit R30-00300012-2008 MM01 Page 13 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

2.0. General Conditions

2.1. Definitions

2.1.1. All references to the "West Virginia Air Pollution Control Act" or the "Air Pollution Control Act" mean those 

provisions contained in W.Va. Code §§ 22-5-1 to 22-5-18.

2.1.2. The "Clean Air Act" means those provisions contained in 42 U.S.C. §§ 7401 to 7671q, and regulations promulgated 

thereunder.

2.1.3. "Secretary" means the Secretary of the Department of Environmental Protection or such other person to whom the 

Secretary has delegated authority or duties pursuant to W.Va. Code §§ 22-1-6 or 22-1-8 (45CSR§30-2.12.). The 

Director of the Division of Air Quality is the Secretary's designated representative for the purposes of this permit.

2.2. Acronyms

CAAA Clean Air Act Amendments

CBI Confidential Business Information

CEM Continuous Emission Monitor

CES Certified Emission Statement

C.F.R. or CFR Code of Federal Regulations

CO Carbon Monoxide

C.S.R. or CSR Codes of State Rules

DAQ Division of Air Quality

DEP Department of Environmental 

Protection

FOIA Freedom of Information Act

HAP Hazardous Air Pollutant

HON Hazardous Organic NESHAP

HP Horsepower

lbs/hr Pounds per Hour

LDAR Leak Detection and Repair

M Thousand

MACT Maximum Achievable Control 

Technology

MM Million

MMBtu/hr or Million British Thermal Units per

 mmbtu/hr Hour

MMCF/hr or Million Cubic Feet Burned per

 mmcf/hr Hour

NA Not Applicable

NAAQS National Ambient Air Quality 

Standards

NESHAPS National Emissions Standards for 

Hazardous Air Pollutants

NOx Nitrogen Oxides

NSPS New Source 

Performance Standards

PM Particulate Matter

PM10 Particulate Matter less 

than 10μm in diameter

pph Pounds per Hour

ppm Parts per Million

PSD Prevention of Significant 

Deterioration

psi Pounds per Square Inch

SIC Standard Industrial 

Classification

SIP State Implementation 

Plan

SO2 Sulfur Dioxide

TAP Toxic Air Pollutant

TPY Tons per Year

TRS Total Reduced Sulfur

TSP Total Suspended 

Particulate

USEPA United States 

Environmental 

Protection Agency

UTM Universal Transverse 

Mercator

VEE Visual Emissions 

Evaluation

VOC Volatile Organic 

Compounds
Title V Operating Permit R30-00300012-2008 MM01 Page 14 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

2.3. Permit Expiration and Renewal

2.3.1. Permit duration. This permit is issued for a fixed term of five (5) years and shall expire on the date specified on 

the cover of this permit, except as provided in 45CSR§30-6.3.b. and 45CSR§30-6.3.c.

[45CSR§30-5.1.b.]

2.3.2. A permit renewal application is timely if it is submitted at least six (6) months prior to the date of permit 

expiration.

[45CSR§30-4.1.a.3.]

2.3.3. Permit expiration terminates the source's right to operate unless a timely and complete renewal application has 

been submitted consistent with 45CSR§30-6.2. and 45CSR§30-4.1.a.3.

[45CSR§30-6.3.b.]

2.3.4. If the Secretary fails to take final action to deny or approve a timely and complete permit application before the 

end of the term of the previous permit, the permit shall not expire until the renewal permit has been issued or 

denied, and any permit shield granted for the permit shall continue in effect during that time.

[45CSR§30-6.3.c.]

2.4. Permit Actions

2.4.1. This permit may be modified, revoked, reopened and reissued, or terminated for cause. The filing of a request by 

the permittee for a permit modification, revocation and reissuance, or termination, or of a notification of planned 

changes or anticipated noncompliance does not stay any permit condition.

[45CSR§30-5.1.f.3.]

2.5. Reopening for Cause

2.5.1. This permit shall be reopened and revised under any of the following circumstances:

a. Additional applicable requirements under the Clean Air Act or the Secretary's legislative rules become 

applicable to a major source with a remaining permit term of three (3) or more years. Such a reopening shall 

be completed not later than eighteen (18) months after promulgation of the applicable requirement. No such 

reopening is required if the effective date of the requirement is later than the date on which the permit is due 

to expire, unless the original permit or any of its terms and conditions has been extended pursuant to 

45CSR§§30-6.6.a.1.A. or B.

b. Additional requirements (including excess emissions requirements) become applicable to an affected source 

under Title IV of the Clean Air Act (Acid Deposition Control) or other legislative rules of the Secretary. 

Upon approval by U.S. EPA, excess emissions offset plans shall be incorporated into the permit.

c. The Secretary or U.S. EPA determines that the permit contains a material mistake or that inaccurate 

statements were made in establishing the emissions standards or other terms or conditions of the permit.

d. The Secretary or U.S. EPA determines that the permit must be revised or revoked and reissued to assure 

compliance with the applicable requirements.

[45CSR§30-6.6.a.]
Title V Operating Permit R30-00300012-2008 MM01 Page 15 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

2.6. Administrative Permit Amendments

2.6.1. The permittee may request an administrative permit amendment as defined in and according to the procedures 

specified in 45CSR§30-6.4.

[45CSR§30-6.4.]

2.7. Minor Permit Modifications

2.7.1. The permittee may request a minor permit modification as defined in and according to the procedures specified in 

45CSR§30-6.5.a.

[45CSR§30-6.5.a.]

2.8. Significant Permit Modification

2.8.1. The permittee may request a significant permit modification, in accordance with 45CSR§30-6.5.b., for permit 

modifications that do not qualify for minor permit modifications or as administrative amendments.

[45CSR§30-6.5.b.]

2.9. Emissions Trading

2.9.1. No permit revision shall be required, under any approved economic incentives, marketable permits, emissions 

trading, and other similar programs or processes for changes that are provided for in the permit and that are in 

accordance with all applicable requirements.

[45CSR§30-5.1.h.]

2.10. Off-Permit Changes

2.10.1. Except as provided below, a facility may make any change in its operations or emissions that is not addressed nor 

prohibited in its permit and which is not considered to be construction nor modification under any rule 

promulgated by the Secretary without obtaining an amendment or modification of its permit. Such changes shall 

be subject to the following requirements and restrictions:

a. The change must meet all applicable requirements and may not violate any existing permit term or condition.

b. The permittee must provide a written notice of the change to the Secretary and to U.S. EPA within two (2) 

business days following the date of the change. Such written notice shall describe each such change, 

including the date, any change in emissions, pollutants emitted, and any applicable requirement that would 

apply as a result of the change.

c. The change shall not qualify for the permit shield.

d. The permittee shall keep records describing all changes made at the source that result in emissions of 

regulated air pollutants, but not otherwise regulated under the permit, and the emissions resulting from those 

changes.

e. No permittee may make any change subject to any requirement under Title IV of the Clean Air Act (Acid 

Deposition Control) pursuant to the provisions of 45CSR§30-5.9.
Title V Operating Permit R30-00300012-2008 MM01 Page 16 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

f. No permittee may make any changes which would require preconstruction review under any provision of 

Title I of the Clean Air Act (including 45CSR14 and 45CSR19) pursuant to the provisions of 45CSR§30-

5.9.

[45CSR'30-5.9]

2.11. Operational Flexibility

2.11.1. The permittee may make changes within the facility as provided by § 502(b)(10) of the Clean Air Act. Such 

operational flexibility shall be provided in the permit in conformance with the permit application and applicable 

requirements. No such changes shall be a modification under any rule or any provision of Title I of the Clean Air 

Act (including 45CSR14 and 45CSR19) promulgated by the Secretary in accordance with Title I of the Clean Air 

Act and the change shall not result in a level of emissions exceeding the emissions allowable under the permit.

[45CSR§30-5.8]

2.11.2. Before making a change under 45CSR§30-5.8., the permittee shall provide advance written notice to the 

Secretary and to U.S. EPA, describing the change to be made, the date on which the change will occur, any 

changes in emissions, and any permit terms and conditions that are affected. The permittee shall thereafter 

maintain a copy of the notice with the permit, and the Secretary shall place a copy with the permit in the public 

file. The written notice shall be provided to the Secretary and U.S. EPA at least seven (7) days prior to the date 

that the change is to be made, except that this period may be shortened or eliminated as necessary for a change 

that must be implemented more quickly to address unanticipated conditions posing a significant health, safety, or 

environmental hazard. If less than seven (7) days notice is provided because of a need to respond more quickly 

to such unanticipated conditions, the permittee shall provide notice to the Secretary and U.S. EPA as soon as 

possible after learning of the need to make the change.

[45CSR§30-5.8.a.]

2.11.3. The permit shield shall not apply to changes made under 45CSR§30-5.8., except those provided for in 

45CSR§30-5.8.d. However, the protection of the permit shield will continue to apply to operations and 

emissions that are not affected by the change, provided that the permittee complies with the terms and conditions 

of the permit applicable to such operations and emissions. The permit shield may be reinstated for emissions and 

operations affected by the change:

a. If subsequent changes cause the facility's operations and emissions to revert to those authorized in the permit 

and the permittee resumes compliance with the terms and conditions of the permit, or

b. If the permittee obtains final approval of a significant modification to the permit to incorporate the change in 

the permit.

[45CSR§30-5.8.c.]

2.11.4. "Section 502(b)(10) changes" are changes that contravene an express permit term. Such changes do not include 

changes that would violate applicable requirements or contravene enforceable permit terms and conditions that 

are monitoring (including test methods), recordkeeping, reporting, or compliance certification requirements.

[45CSR§30-2.39]
Title V Operating Permit R30-00300012-2008 MM01 Page 17 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

2.12. Reasonably Anticipated Operating Scenarios

2.12.1. The following are terms and conditions for reasonably anticipated operating scenarios identified in this permit.

a. Contemporaneously with making a change from one operating scenario to another, the permittee shall record 

in a log at the permitted facility a record of the scenario under which it is operating and to document the 

change in reports submitted pursuant to the terms of this permit and 45CSR30.

b. The permit shield shall extend to all terms and conditions under each such operating scenario; and

c. The terms and conditions of each such alternative scenario shall meet all applicable requirements and the 

requirements of 45CSR30.

[45CSR§30-5.1.i.]

2.13. Duty to Comply

2.13.1. The permittee must comply with all conditions of this permit. Any permit noncompliance constitutes a violation 

of the West Virginia Code and the Clean Air Act and is grounds for enforcement action by the Secretary or 

USEPA; for permit termination, revocation and reissuance, or modification; or for denial of a permit renewal 

application.

[45CSR§30-5.1.f.1.]

2.14. Inspection and Entry

2.14.1. The permittee shall allow any authorized representative of the Secretary, upon the presentation of credentials and 

other documents as may be required by law, to perform the following:

a. At all reasonable times (including all times in which the facility is in operation) enter upon the permittee's 

premises where a source is located or emissions related activity is conducted, or where records must be kept 

under the conditions of this permit;

b. Have access to and copy, at reasonable times, any records that must be kept under the conditions of this 

permit;

c. Inspect at reasonable times (including all times in which the facility is in operation) any facilities, equipment 

(including monitoring and air pollution Control equipment), practices, or operations regulated or required 

under the permit;

d. Sample or monitor at reasonable times substances or parameters to determine compliance with the permit or 

applicable requirements or ascertain the amounts and types of air pollutants discharged.

[45CSR§30-5.3.b.]
Title V Operating Permit R30-00300012-2008 MM01 Page 18 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

2.15. Schedule of Compliance

2.15.1. For sources subject to a compliance schedule, certified progress reports shall be submitted consistent with the 

applicable schedule of compliance set forth in this permit and 45CSR§30-4.3.h., but at least every six (6) months, 

and no greater than once a month, and shall include the following:

a. Dates for achieving the activities, milestones, or compliance required in the schedule of compliance, and 

dates when such activities, milestones or compliance were achieved; and

b. An explanation of why any dates in the schedule of compliance were not or will not be met, and any 

preventative or corrective measure adopted.

[45CSR§30-5.3.d.]

2.16. Need to Halt or Reduce Activity not a Defense

2.16.1. 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 this permit. However, 

nothing in this paragraph shall be construed as precluding consideration of a need to halt or reduce activity as a 

mitigating factor in determining penalties for noncompliance if the health, safety, or environmental impacts of 

halting or reducing operations would be more serious than the impacts of continued operations.

[45CSR§30-5.1.f.2.]

2.17. Emergency

2.17.1. 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 that causes the source to exceed a technology-based emission limitation under the permit, 

due to unavoidable increases in emissions attributable to the emergency. An emergency shall not include 

noncompliance to the extent caused by improperly designed equipment, lack of preventative maintenance, 

careless or improper operation, or operator error.

[45CSR§30-5.7.a.]

2.17.2. Effect of any emergency. An emergency constitutes an affirmative defense to an action brought for 

noncompliance with such technology-based emission limitations if the conditions of 45CSR§30-8.7.c. are met.

[45CSR§30-5.7.b.]

2.17.3. The affirmative defense of emergency shall be demonstrated through properly signed, contemporaneous 

operating logs, or other relevant evidence that:

a. An emergency occurred and that 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
Title V Operating Permit R30-00300012-2008 MM01 Page 19 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

d. Subject to the requirements of 45CSR§30-5.1.c.3.C.1, the permittee submitted notice of the emergency to 

the Secretary within one (1) working day of the time when emission limitations were exceeded due to the 

emergency and made a request for variance, and as applicable rules provide. This notice, report, and 

variance request fulfills the requirement of C. S. R. § 45-30-5.1.c.3.B. This notice must contain a detailed 

description of the emergency, any steps taken to mitigate emissions, and corrective actions taken.

[45CSR§30-5.7.c.]

2.17.4. In any enforcement proceeding, the permittee seeking to establish the occurrence of an emergency has the burden 

of proof.

[45CSR§30-5.7.d.]

2.17.5. This provision is in addition to any emergency or upset provision contained in any applicable requirement.

[45CSR§30-5.7.e.]

2.18. Federally-Enforceable Requirements

2.18.1. All terms and conditions in this permit, including any provisions designed to limit a source's potential to emit and 

excepting those provisions that are specifically designated in the permit as "State-enforceable only", are 

enforceable by the Secretary, USEPA, and citizens under the Clean Air Act. 

[45CSR§30-5.2.a.]

2.18.2. Those provisions specifically designated in the permit as “State-enforceable only” shall become “Federallyenforceable” requirements upon SIP approval by the USEPA.

2.19. Duty to Provide Information

2.19.1. The permittee shall furnish to the Secretary within a reasonable time any information the Secretary 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 Secretary copies 

of records required to be kept by the permittee. For information claimed to be confidential, the permittee shall 

furnish such records to the Secretary along with a claim of confidentiality in accordance with 45CSR31. If 

confidential information is to be sent to USEPA, the permittee shall directly provide such information to USEPA 

along with a claim of confidentiality in accordance with 40 C.F.R. Part 2.

[45CSR§30-5.1.f.5.]

2.20. Duty to Supplement and Correct Information

2.20.1. Upon becoming aware of a failure to submit any relevant facts or a submittal of incorrect information in any 

permit application, the permittee shall promptly submit to the Secretary such supplemental facts or corrected 

information.

[45CSR§30-4.2.]
Title V Operating Permit R30-00300012-2008 MM01 Page 20 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

2.21. Permit Shield

2.21.1. Compliance with the conditions of this permit shall be deemed compliance with any applicable requirements as 

of the date of permit issuance provided that such applicable requirements are included and are specifically 

identified in this permit or the Secretary has determined that other requirements specifically identified are not 

applicable to the source and this permit includes such a determination or a concise summary thereof.

[45CSR§30-5.6.a.]

2.21.2. Nothing in this permit shall alter or affect the following:

a. 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; or

b. The applicable requirements of the Code of West Virginia and Title IV of the Clean Air Act (Acid 

Deposition Control), consistent with § 408 (a) of the Clean Air Act.

c. The authority of the Administrator of U.S. EPA to require information under § 114 of the Clean Air Act or 

to issue emergency orders under § 303 of the Clean Air Act.

[45CSR§30-5.6.c.]

2.22. Credible Evidence

2.22.1. Nothing in this permit shall alter or affect the ability of any person to establish compliance with, or a violation of, 

any applicable requirement through the use of credible evidence to the extent authorized by law. Nothing in this 

permit shall be construed to waive any defenses otherwise available to the permittee including but not limited to 

any challenge to the credible evidence rule in the context of any future proceeding.

[45CSR§30-5.3.e.3.B. and §45-38]

2.23. Severability

2.23.1. The provisions of this permit are severable. If any provision of this permit, or the application of any provision of 

this permit to any circumstance is held invalid by a court of competent jurisdiction, the remaining permit terms 

and conditions or their application to other circumstances shall remain in full force and effect.

[45CSR§30-5.1.e.]

2.24. Property Rights

2.24.1. This permit does not convey any property rights of any sort or any exclusive privilege.

[45CSR§30-5.1.f.4]

2.25. Acid Deposition Control

2.25.1. Emissions shall not exceed any allowances that the source lawfully holds under Title IV of the Clean Air Act 

(Acid Deposition Control) or rules of the Secretary promulgated thereunder.
Title V Operating Permit R30-00300012-2008 MM01 Page 21 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

a. No permit revision shall be required for increases in emissions that are authorized by allowances acquired 

pursuant to the acid deposition control program, provided that such increases do not require a permit 

revision under any other applicable requirement.

b. No limit shall be placed on the number of allowances held by the source. The source may not, however, use 

allowances as a defense to noncompliance with any other applicable requirement. 

c. Any such allowance shall be accounted for according to the procedures established in rules promulgated 

under Title IV of the Clean Air Act.

[45CSR§30-5.1.d.]

2.25.2. Where applicable requirements of the Clean Air Act are more stringent than any applicable requirement of 

regulations promulgated under Title IV of the Clean Air Act (Acid Deposition Control), both provisions shall be 

incorporated into the permit and shall be enforceable by the Secretary and U. S. EPA.

[45CSR§30-5.1.a.2.]
Title V Operating Permit R30-00300012-2008 MM01 Page 22 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

3.0. Facility-Wide Requirements

3.1. Limitations and Standards

3.1.1. Open burning. The open burning of refuse by any person, firm, corporation, association or public agency is 

prohibited except as noted in 45CSR§6-3.1.

[45CSR§6-3.1]

3.1.2. Open burning exemptions. The exemptions listed in 45CSR§6-3.1 are subject to the following stipulation: 

Upon notification by the Secretary, no person shall cause, suffer, allow or permit any form of open burning 

during existing or predicted periods of atmospheric stagnation. Notification shall be made by such means as the 

Secretary may deem necessary and feasible.

[45CSR§6-3.2.]

3.1.3. Asbestos. The permittee is responsible for thoroughly inspecting the facility, or part of the facility, prior to 

commencement of demolition or renovation for the presence of asbestos and complying with 40 C.F.R. § 61.145, 

40 C.F.R. § 61.148, and 40 C.F.R. § 61.150. The permittee must notify the Secretary at least ten (10) working 

days prior to the commencement of any asbestos removal on the forms prescribed by the Secretary if the 

permittee is subject to the notification requirements of 40 C.F.R. § 61.145(b)(3)(i). A copy of this notice is 

required to be sent to the USEPA, the Division of Waste Management and the Bureau for Public Health -

Environmental Health.

[40 C.F.R. 61]

3.1.4. Odor. No person shall cause, suffer, allow or permit the discharge of air pollutants which cause or contribute to 

an objectionable odor at any location occupied by the public.

[45CSR§4-3.1 State-Enforceable only.]

3.1.5. Standby plan for reducing emissions. When requested by the Secretary, the permittee shall prepare standby 

plans for reducing the emissions of air pollutants in accordance with the objectives set forth in Tables I, II, and 

III of 45CSR11.

[45CSR§11-5.2]

3.1.6. Emission inventory. The permittee is responsible for submitting, on an annual basis, an emission inventory in 

accordance with the submittal requirements of the Division of Air Quality.

[W.Va. Code § 22-5-4(a)(14)]

3.1.7. Ozone-depleting substances. For those facilities performing maintenance, service, repair or disposal of 

appliances, the permittee shall comply with the standards for recycling and emissions reduction pursuant to 40 

C.F.R. Part 82, Subpart F, except as provided for Motor Vehicle Air Conditioners (MVACs) in Subpart B:

a. Persons opening appliances for maintenance, service, repair, or disposal must comply with the prohibitions 

and required practices pursuant to C.F.R. §§ 40-82.154 and 82.156.

b. Equipment used during the maintenance, service, repair, or disposal of appliances must comply with the 

standards for recycling and recovery equipment pursuant to C.F.R. § 40-82.158.
Title V Operating Permit R30-00300012-2008 MM01 Page 23 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

c. Persons performing maintenance, service, repair, or disposal of appliances must be certified by an approved 

technician certification program pursuant to C.F.R. § 40-82.161.

[40 C.F.R. 82, Subpart F]

3.1.8. Risk Management Plan. Should this stationary source, as defined in 40 C.F.R. § 68.3, become subject to Part 

68, then the owner or operator shall submit a risk management plan (RMP) by the date specified in 40 C.F.R. § 

68.10 and shall certify compliance with the requirements of Part 68 as part of the annual compliance certification 

as required by 40 C.F.R. Part 70 or 71.

[40 C.F.R. 68] 

3.1.9. No person shall cause, suffer, allow or permit emission of smoke and/or particulate matter into the open air from 

any process source operation which is greater than twenty (20) percent opacity, except as noted in 45CSR§§7-3.2 

(3.1.10.), and 3.7 (4.1.8.).

[45CSR§7-3.1.]

3.1.10. The provisions of 45CSR§7-3.1 (3.1.9.) shall not apply to smoke and/or particulate matter emitted from any 

process source operation which is less than forty (40) percent opacity for any period or periods aggregating no 

more than five (5) minutes in any sixty (60) minute period. 

[45CSR§7-3.2.]

3.1.11. No person shall cause, suffer, allow or permit particulate matter to be vented into the open air from any type 

source operation or duplicate source operation, or from all air pollution control equipment installed on any type 

source operation or duplicate source operation in excess of the quantity specified under the appropriate source 

operation type in Table 45-7A. The allowable particulate matter emission rate for line 1 is 16.0 lb/hr (aggregated 

emissions from EP12, EP13, EP14). The allowable particulate matter emission rate for line 2 is 17.0 lb/hr

(aggregated emissions from EP22, EP23, EP24). Compliance with the PM limits in conditions 5.1.6., 6.1.2., and 

7.1.1. assures compliance with the limits in this permit condition.

[45CSR§7-4.1.]

3.1.12. Any stack serving any process source operation or air pollution control equipment on any process source 

operation shall contain flow straightening devices or a vertical run of sufficient length to establish flow patterns 

consistent with acceptable stack sampling procedures. 

[45CSR§7-4.12.]

3.1.13. No person shall cause, suffer, allow, or permit any manufacturing process or storage structure generating fugitive 

particulate matter to operate that is not equipped with a system, which may include, but not be limited to, process 

equipment design, control equipment design or operation and maintenance procedures, to minimize the emissions 

of fugitive particulate matter. To minimize means such system shall be installed, maintained and operated to 

ensure the lowest fugitive particulate matter emissions reasonably achievable.

[45CSR§7-5.1.]

3.1.14. The owner or operator of a plant shall maintain dust control of the plant premises, and plant owned, leased or 

controlled access roads, by paving, application of asphalt, chemical dust suppressants or other suitable dust 

control measures. Good operating practices shall be implemented and when necessary dust suppressants shall be 

applied in relation to stockpiling and general material handling to prevent dust generation and atmospheric 

entrainment. 

[45CSR§7-5.2.] 
Title V Operating Permit R30-00300012-2008 MM01 Page 24 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

3.1.15. Due to unavoidable malfunction of equipment, emissions exceeding those set forth in 45CSR7 may be permitted 

by the Director for periods not to exceed ten (10) days upon specific application to the Director. Such 

application shall be made within twenty-four (24) hours of the malfunction. In cases of major equipment failure, 

additional time periods may be granted by the Director provided a corrective program has been submitted by the 

owner or operator and approved by the Director. 

[45CSR§7-9.1.]

3.1.16. Fugitive emissions from equipment (e.g. pipes, pumps, flanges, etc.), which are placed in toxic air pollutant 

service, as defined by 45CSR§27-2.11, shall be integrated into the existing Leak Detection and Repair program. 

This Leak Detection and Repair program shall comply with the provision of 40 C.F.R. 61 Subpart V. All reports 

and notification required by Subpart V shall be submitted to the Director instead of the U.S. EPA Administrator.

[45CSR14, R14-0015, 5.1.13.; 45CSR§§27-4.1. and 10.3. (State-enforceable only)]

3.1.17. The permittee shall install and maintain an industrial fence around this permitted facility as outlined in Appendix 

B of the December 7, 2001 submittal of the Prevention of Significant Deterioration Air Quality Dispersion 

Modeling Report. This industrial fence shall be constructed in such a manner to prevent the general public from 

accessing this permitted facility.

[45CSR14, R14-0015, 5.1.14.]

3.1.18. Process Modifications. On and after the date on which the performance test required to be conducted by 40 

C.F.R. §§ 63.7 and 63.1384 is completed, the owner or operator must operate all affected control equipment and 

processes according to the following requirements given under applicable requirement 40 C.F.R. §63.1382(b)(8). 

(i) The owner or operator must initiate corrective action within 1 hour when the monitored process 

parameter level(s) is outside the limit(s) established during the performance test as specified in 40 

C.F.R. §63.1384 for the process modification(s) used to control formaldehyde emissions and 

complete corrective actions in a timely manner according to the procedures in the operations, 

maintenance, and monitoring plan (permit condition 3.2.1.). 

(ii) The owner or operator must implement a QIP consistent with the compliance assurance monitoring 

provisions of 40 C.F.R. part 64, subpart D when the process parameter(s) is outside the limit(s) 

established during the performance test as specified in 40 C.F.R. §63.1384 for more than 5 percent 

of the total operating time in a 6-month block reporting period. 

(iii) The owner or operator must operate the process modifications such that the monitored process 

parameter(s) is not outside the limit(s) established during the performance test as specified in

§63.1384 for more than 10 percent of the total operating time in a 6-month block reporting period.

[40 C.F.R. §63.1382(b)(8); 45CSR34]

3.1.19. The permitted facility shall be constructed and operated in accordance with the plans and specifications filed in 

Permit Application R14-0015, R14-0015A, R14-0015B, R14-0015C, R14-0015D, R14-0015E, R14-0015F, R14-

0015G, R14-0015H, R14-0015I, R14-0015J, and any modifications, administrative updates, or amendments 

thereto. The Secretary may suspend or revoke a permit if the plans and specifications upon which the approval 

was based are not adhered to.

[45CSR14, R14-0015, 2.5.1.; 45CSR§§13-5.11. and 10.3.]

3.1.20. All chemical processing units shall be properly instrumented to alert the operator of process upsets, leaks, and 

other abnormal discharges of toxic air pollutants into the air and the operator shall record all such incidents and 

the associated emissions estimated from direct measurements of toxic air pollutant concentration and/or 

calculations using other process measurements.

[45CSR§27-3.4. (State-enforceable only)]
Title V Operating Permit R30-00300012-2008 MM01 Page 25 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

3.1.21. Due to unavoidable malfunction of equipment or other conditions resulting in emissions exceeding a level 

established in the compliance program, emissions exceeding those provided for in this rule may be permitted by 

the Director for periods not to exceed ten (10) days upon specific application to the Director. Such application 

shall be made within twenty-four (24) hours of the malfunction. In cases of major equipment failure, additional 

time periods may be granted by the Director provided a corrective program has been submitted by the owner or 

operator and approved by the Director.

[45CSR§27-12.1. (State-enforceable only)]

3.1.22. On and after the date on which the performance test required to be conducted by 40 C.F.R. § 60.8 is completed, 

the permittee shall not cause to be discharged into the atmosphere from any affected facility any gases which 

contain particulate matter in excess of 5.5 kg/Mg (11.0 lb/ton) of glass pulled for each fiberglass production line. 

[40 C.F.R. §60.682; 45CSR16]

3.1.23. Operation and Maintenance of Air Pollution Control Equipment. The permittee shall, to the extent 

practicable, install, maintain, and operate all pollution control equipment listed in sub-section 1.1. and associated 

monitoring equipment in a manner consistent with safety and good air pollution control practices for minimizing 

emissions, or comply with any more stringent limits set forth in this permit or as set forth by any State rule, 

Federal regulation, or alternative control plan approved by the Secretary.

[45CSR14, R14-0015, 4.1.4., and 5.1.15.; 45CSR§13-5.11.]

3.1.24. Except as provided in 45CSR§§27-3.2 and 3.3, the owner or operator of a plant that discharges or may discharge 

a toxic air pollutant into the open air in excess of the amount shown in the Table A of 45CSR27 shall employ 

BAT at all chemical processing units emitting the toxic air pollutant: Provided, that any source or equipment 

specifically subject to a federal regulation or standard shall not be required to comply with provisions more 

stringent than such regulation or standard.

[45CSR§27-3.1. (State-enforceable only)]

3.2. Monitoring Requirements

3.2.1. Operations, Maintenance, and Monitoring Plan. On and after the date on which the performance test required 

to be conducted by 40 C.F.R. §§ 63.7 and 63.1384 is completed, the owner or operator of each wool fiberglass 

manufacturing facility must prepare for each glass-melting furnace, and rotary spin manufacturing line subject to 

the provisions of 40 C.F.R. 63 Subpart NNN, a written operations, maintenance, and monitoring plan. The plan 

must be submitted to the Administrator for review and approval as part of the application for a part 70 permit. 

The plan must include the following information: 

(1) Procedures for the proper operation and maintenance of process modifications (permit condition 

3.2.2.) and add-on control devices used to meet the emission limits in 40 C.F.R. §63.1382; 

(2) Procedures for the proper operation and maintenance of monitoring devices used to determine 

compliance, including quarterly calibration and certification of accuracy of each monitoring device 

according to the manufacturer’s instructions; and 

(3) Corrective actions to be taken when process parameters or add-on control device parameters deviate 

from the limit(s) established during initial performance tests.

(4) Process parameter(s) to be monitored to demonstrate compliance with the applicable emission limits 

in §63.1382. Examples of process parameters include LOI, binder solids content, and binder 

application rate;
Title V Operating Permit R30-00300012-2008 MM01 Page 26 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

(5) Correlation(s) between process parameter(s) to be monitored and formaldehyde emissions;

(6) A schedule for monitoring the process parameter(s); and

(7) Recordkeeping procedures, consistent with the recordkeeping requirements of §63.1386, to show that 

the process parameter value(s) established during the performance test is not exceeded.

The operations, maintenance, and monitoring plan must specify corrective actions to be followed in the event of a 

bag leak detection system alarm. Example corrective actions that may be included in the plan include the 

following:

(i) Inspecting the baghouse for air leaks, torn or broken bags or filter media, or any other conditions that 

may cause and increase in emissions.

(ii) Sealing off defective bags or filter media.

(iii) Replacing defective bags or filter media, or otherwise repairing the control device.

(iv) Sealing off a defective baghouse compartment.

(v) Cleaning the bag leak detection system probe, or otherwise repairing the bag leak detection system.

(vi) Shutting down the process producing the particulate emissions.

[40 C.F.R. §§ 63.1383(a), 63.1383(b)(2), and 63.1383(i)(3); 45CSR34]

3.2.2. Process Modifications Monitoring.

(1) The owner or operator who uses process modifications to control formaldehyde emissions must 

establish a correlation between formaldehyde emissions and a process parameter(s) to be monitored. 

(2) The owner or operator must monitor the established parameter(s) according to the procedures in the 

operations, maintenance, and monitoring plan (permit condition 3.2.1.).

(3) The owner or operator must include as part of their operations, maintenance, and monitoring plan 

(permit condition 3.2.1.) the following information: 

(i) Procedures for the proper operation and maintenance of the process; 

(ii) Process parameter(s) to be monitored to demonstrate compliance with the applicable emission 

limits in 40 C.F.R. §63.1382. Examples of process parameters include LOI, binder solids 

content, and binder application rate; 

(iii) Correlation(s) between process parameter(s) to be monitored and formaldehyde emissions;

(iv) A schedule for monitoring the process parameter(s); and 

(v) Record keeping procedures, consistent with the record keeping requirements of 40 C.F.R. 

§63.1386, to show that the process parameter value(s) established during the performance test 

is not exceeded.

[40 C.F.R. §63.1383(i); 45CSR34]
Title V Operating Permit R30-00300012-2008 MM01 Page 27 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

3.3. Testing Requirements

3.3.1. Stack testing. As per provisions set forth in this permit or as otherwise required by the Secretary, in accordance 

with the West Virginia Code, underlying regulations, permits and orders, the permittee shall conduct test(s) to 

determine compliance with the emission limitations set forth in this permit and/or established or set forth in 

underlying documents. The Secretary, or his duly authorized representative, may at his option witness or conduct 

such test(s). Should the Secretary exercise his option to conduct such test(s), the operator shall provide all 

necessary sampling connections and sampling ports to be located in such manner as the Secretary may require, 

power for test equipment and the required safety equipment, such as scaffolding, railings and ladders, to comply 

with generally accepted good safety practices. Such tests shall be conducted in accordance with the methods and 

procedures set forth in this permit or as otherwise approved or specified by the Secretary in accordance with the 

following:

a. The Secretary may on a source-specific basis approve or specify additional testing or alternative testing to 

the test methods specified in the permit for demonstrating compliance with 40 C.F.R. Parts 60, 61, and 63 in 

accordance with the Secretary’s delegated authority and any established equivalency determination methods 

which are applicable. If a testing method is specified or approved which effectively replaces a test method 

specified in the permit, the permit will be revised in accordance with 45CSR§30-6.4. or 45CSR§30-6.5 as 

applicable.

b. The Secretary may on a source-specific basis approve or specify additional testing or alternative testing to 

the test methods specified in the permit for demonstrating compliance with applicable requirements which 

do not involve federal delegation. In specifying or approving such alternative testing to the test methods, the 

Secretary, to the extent possible, shall utilize the same equivalency criteria as would be used in approving 

such changes under Section 3.3.1.a. of this permit. If a testing method is specified or approved which 

effectively replaces a test method specified in the permit, the permit will be revised in accordance with 

45CSR§30-6.4. or 45CSR§30-6.5 as applicable.

c. All periodic tests to determine mass emission limits from or air pollutant concentrations in discharge stacks 

and such other tests as specified in this permit shall be conducted in accordance with an approved test 

protocol. Unless previously approved, such protocols shall be submitted to the Secretary in writing at least 

thirty (30) days prior to any testing and shall contain the information set forth by the Secretary. In addition, 

the permittee shall notify the Secretary at least fifteen (15) days prior to any testing so the Secretary may 

have the opportunity to observe such tests. This notification shall include the actual date and time during 

which the test will be conducted and, if appropriate, verification that the tests will fully conform to a 

referenced protocol previously approved by the Secretary. 

[WV Code § 22-5-4(a)(15) and 45CSR13]

3.3.2. At such reasonable times as the Director may designate, the operator of any manufacturing process source 

operation may be required to conduct or have conducted stack tests to determine the particulate matter loading in 

exhaust gases. Such tests shall be conducted in such manner as the Director may specify and be filed on forms 

and in a manner acceptable to the Director. The Director, or his duly authorized representative, may at his option 

witness or conduct such stack tests. Should the Director exercise his option to conduct such tests, the operator 

will provide all the necessary sampling connections and sampling ports to be located in such manner as the 

Director may require, power for test equipment and the required safety equipment such as scaffolding, railings 

and ladders to comply with generally accepted good safety practices. 

[45CSR§7-8.1.] 
Title V Operating Permit R30-00300012-2008 MM01 Page 28 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

3.3.3. The Director, or his duly authorized representative, may conduct such other tests as he or she may deem 

necessary to evaluate air pollution emissions. 

[45CSR§7-8.2.] 

3.3.4. For all control device and process operating parameters measured during the initial performance tests, the owners 

or operators of glass-melting furnaces, or rotary spin manufacturing lines subject to 40 C.F.R. 63 Subpart NNN 

may change the limits established during the initial performance tests if additional performance testing is 

conducted to verify that, at the new control device or process parameter levels, they comply with the applicable 

emission limits in 40 C.F.R. §63.1382. The owner or operator shall conduct all additional performance tests 

according to the procedures in 40 C.F.R. 63 Subpart A and in 40 C.F.R. §63.1384.

[40 C.F.R. §63.1383(m); 45CSR34]

3.3.5. The owner or operator subject to the provisions of this 40 C.F.R. 63 Subpart NNN shall conduct a performance 

test to demonstrate compliance with the applicable emission limits in 40 C.F.R. §63.1382. Compliance is 

demonstrated when the emission rate of the pollutant is equal to or less than each of the applicable emission 

limits in 40 C.F.R. §63.1382. The owner or operator shall conduct the performance test according to the 

procedures in 40 C.F.R. part 63, subpart A and in this section.

(1) All monitoring systems and equipment must be installed, operational, and calibrated prior to the 

performance test. 

(2) Unless a different frequency is specified in this section, the owner or operator must monitor and record 

process and/or add-on control device parameters at least every 15 minutes during the performance tests. 

The arithmetic average for each parameter must be calculated using all of the recorded measurements 

for the parameter.

(3) During each performance test, the owner or operator must monitor and record the glass pull rate for 

each glass-melting furnace and, if different, the glass pull rate for each rotary spin manufacturing line. 

Record the glass pull rate every 15 minutes during any performance test required by 40 C.F.R. 63 

Subpart NNN and determine the arithmetic average of the recorded measurements for each test run and 

calculate the average of the three test runs.

(4) The owner or operator shall conduct a performance test for each existing and new glass-melting furnace.

(8) The owner or operator must conduct a performance test for each rotary spin manufacturing line, subject 

to 40 C.F.R. 63 Subpart NNN, while producing the building insulation with the highest LOI expected to 

be produced on that line.

(9) The owner or operator of each rotary spin manufacturing line regulated by 40 C.F.R. 63 Subpart NNN 

must conduct performance tests using the resin with the highest free-formaldehyde content. During the 

performance test of each rotary spin manufacturing line regulated by 40 C.F.R. 63 Subpart NNN, the 

owner or operator shall monitor and record the free-formaldehyde content of the resin, the binder 

formulation used, and the product LOI and density. 

(10) During the performance test, the owner or operator of a rotary spin manufacturing line who plans to use 

process modifications to comply with the emission limits in 40 C.F.R. § 63.1382 must monitor and 

record the process parameter level(s), as specified in the operations, maintenance, and monitoring plan

(permit condition 3.2.1.), which will be used to demonstrate compliance after the initial performance 

test. 
Title V Operating Permit R30-00300012-2008 MM01 Page 29 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

(12) During the performance test, the owner or operator of a rotary spin manufacturing line shall 

continuously record the operating temperature of each incinerator and record the average during each 1-

hour test; the average operating temperature of the three 1-hour tests shall be used to monitor 

compliance. 

(13) Unless disapproved by the Administrator, an owner or operator of a rotary spin manufacturing line 

regulated by 40 C.F.R. 63 Subpart NNN may conduct short-term experimental production runs using 

binder formulations or other process modifications where the process parameter values would be 

outside those established during performance tests without first conducting performance tests. Such runs 

must not exceed 1 week in duration unless the Administrator approves a longer period. The owner or 

operator must notify the Administrator and postmark or deliver the notification at least 15 days prior to 

commencement of the short-term experimental production runs. The Administrator must inform the 

owner or operator of a decision to disapprove or must request additional information prior to the date of

the short-term experimental production runs. Notification of intent to perform an experimental shortterm production run shall include the following information:

(i) The purpose of the experimental production run; 

(ii) The affected line;

(iii) How the established process parameters will deviate from previously approved levels;

(iv) The duration of the experimental production run; 

(v) The date and time of the experimental production run; and 

(vi) A description of any emission testing to be performed during the experimental production run. 

[Note: Compliance with this condition ensures compliance with 3.3.10. a.i., a.iv., a.v., a.viii., and c.]

[40 C.F.R. §63.1384(a); 45CSR34; 45CSR14, R14-0015, 4.5.3.]

3.3.6. To determine compliance with the PM emission limit for glass-melting furnaces, use the following equation: 

P

C Q K E

× × 1 = (Eq. 1)

Where: 

E = Emission rate of PM, kg/Mg (lb/ton) of glass pulled;

C = Concentration of PM, g/dscm (gr/dscf);

Q = Volumetric flow rate of exhaust gases, dscm/h (dscf/h);

K1 = Conversion factor, 1 kg/1,000 g (1 lb/7,000 gr); and

P = Average glass pull rate, Mg/h (tons/h). 

[40 C.F.R. §63.1384(b); 45CSR34]
Title V Operating Permit R30-00300012-2008 MM01 Page 30 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

3.3.7. To determine compliance with the emission limit for formaldehyde for rotary spin manufacturing lines, use the 

following equation: 

6

3

1 2

× ×10

× × × × = K PC MW Q K K E (Eq. 2)

Where:

E = Emission rate of formaldehyde, kg/Mg (lb/ton) of glass pulled; 

C = Measured volume fraction of formaldehyde, ppm; 

MW = Molecular weight of formaldehyde, 30.03 g/g-mol; 

Q = Volumetric flow rate of exhaust gases, dscm/h (dscf/h); 

K1 = Conversion factor, 1 kg/1,000 g (1 lb/453.6 g); 

K2 = Conversion factor, 1,000 L/m3 (28.3 L/ft3

); 

K3 = Conversion factor, 24.45 L/g-mol; and

P = Average glass pull rate, Mg/h (tons/h).

[40 C.F.R. §63.1384(c); 45CSR34]

3.3.8. The owner or operator shall use the following methods to determine compliance with the applicable emission 

limits: 

(1) Method 1 (40 C.F.R. part 60, appendix A) for the selection of the sampling port location and number of 

sampling ports; 

(2) Method 2 (40 C.F.R. part 60, appendix A) for volumetric flow rate; 

(3) Method 3 or 3A (40 C.F.R. part 60, appendix A) for O2 and CO2 for diluent measurements needed to 

correct the concentration measurements to a standard basis;

(4) Method 4 (40 C.F.R. part 60, appendix A) for moisture content of the stack gas;

(5) Method 5 (40 C.F.R. part 60, appendix A) for the concentration of PM. Each run shall consist of a 

minimum run time of 2 hours and a minimum sample volume of 60 dry standard cubic feet (dscf). The 

probe and filter holder heating system may be set to provide a gas temperature no greater than 177 ±14 

o

C (350 ±25 oF);

(6) Method 316 or Method 318 (appendix A of 40 C.F.R. 63) for the concentration of formaldehyde. Each 

run shall consist of a minimum run time of 1 hour; 

(7) Method contained in appendix A of 40 C.F.R. 63 Subpart NNN for the determination of product LOI;

(8) Method contained in appendix B of 40 C.F.R. 63 Subpart NNN for the determination of the freeformaldehyde content of resin; 
Title V Operating Permit R30-00300012-2008 MM01 Page 31 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

(9) Method contained in appendix C of 40 C.F.R. 63 Subpart NNN for the determination of product 

density;

(10) An alternative method, subject to approval by the Administrator. 

[40 C.F.R. §63.1385(a); 45CSR34]

3.3.9. Each performance test shall consist of 3 runs. The owner or operator shall use the average of the three runs in the 

applicable equation for determining compliance.

[40 C.F.R. §63.1385(b); 45CSR34]

3.3.10. For the purposes of demonstrating initial compliance with operational and emission limitations in conditions

6.1.2., 7.1.1., and 40 C.F.R. §63.7(a), the permittee shall conduct performance testing of the 1st and 2nd lines 

within 180 days after issuance of permit R14-0015H (October 17, 2007). Such testing shall determine the VOC, 

formaldehyde, and phenol emission rates from the collection and incinerator stacks of the both production lines. 

This testing shall establish and/or verify the operating parameters for the respective control devices of the 

production line. This testing shall be conducted as outlined in the following:

a. General Testing Requirements:

i. This testing shall consist of three test runs. Each test run must last at least one hour;

ii. Each test run must be conducted with the production line operating at no less 90 percent capacity;

iii. During each test run, sampling of the collection and incinerator must occur simultaneously to each 

other;

iv. The line must be using a resin with the highest free-formaldehyde content;

v. The line must be producing a product with a highest LOI expected to be produce by this line;

vi. Test(s) shall not be conducted during periods of startup, shutdown, or malfunctions as specified in 40 

C.F.R. §63.7(e)(1);

vii. During such testing, the permittee shall measure and record the free-formaldehyde content of the 

resin, the binder formulation used, and the product LOI, and density;

viii. During such testing, the permittee shall monitor and record all of the operating parameters respective 

to the production line as noted in condition 3.3.10. in fifteen (15) minute intervals. The arithmetic 

average shall be calculated for each parameters using all of recorded measurements. Such 

measurements and arithmetic averages shall be included with the testing report.

b. Demonstrating compliance with the VOC emission limit shall be conducted with a method(s) approved by 

the Director. The permittee may propose a testing method as part of the required protocol of condition 

3.3.1.;

c. Demonstrating compliance with the formaldehyde limits shall be conducted in accordance with U.S. EPA 

Method 316 or Method 318;

d. Demonstrating compliance with the phenol limits shall be conducted in accordance with U.S. EPA 

Method 318 or 320 or other method approved by the Director;
Title V Operating Permit R30-00300012-2008 MM01 Page 32 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

e. Compliance with the VOC, formaldehyde, and phenol limits shall be determined by taking sum of the 

arithmetic average of the respective pollutant from the collection stack and incinerator stack. The 

reported emission rates shall be in terms of pounds per ton of glass pulled;

f. Such testing shall be conducted in accordance with permit condition 3.3.1.

[45CSR14, R14-0015, 4.3.1.]

3.3.11. Within 180 days after completing modification of the 1st line to be capable of producing 8,000 pounds of glass 

pulled per hour, the permittee shall conduct performance testing to demonstrate compliance with the carbon 

dioxide, PM, VOC, formaldehyde, and phenol emission limits. Such testing shall be conducted as prescribed in 

condition 3.3.10. for VOC, formaldehyde, and phenol. For PM, such testing shall be conducted as outlined in 

condition 3.3.13. For carbon monoxide, such testing shall be conducted in accordance with U.S. EPA Method 

10. This testing shall establish and/or verify the operating parameters for the respective control devices of the 

production line.

[45CSR14, R14-0015, 4.3.2.]

3.3.12. Once every five years, the permittee shall conduct emission testing to demonstrate compliance with the permitted 

CO and NOx emission limits in 6.1.2. and 7.1.1. for the collection stack (EP13 and EP23) and incinerator stack 

(EP14 and EP24) of each production line and to verify and/or establish maximum Thermox reading in millivolts 

for the fiberizers and forethearth as stipulated in 6.1.3. and 6.1.4. This testing shall be conducted as outlined in 

permit conditions 3.3.1., 3.3.10.a., and as follows:

a. Demonstrating compliance with the carbon monoxide limits shall be conducted in accordance with U.S. EPA 

Method 10,

b. Demonstrating compliance with the oxides of nitrogen limits shall be conducted in accordance with U.S. 

EPA Method 7E.

[45CSR14, R14-0015, 4.3.3.]

3.3.13. Once every 5 years or within 180 days that when the production line will be producing a product with a LOI 

greater than the previous compliance test that demonstrated compliance with the permitted PM limits of this 

permit, the permittee shall conduct performance testing to determine the PM emission rate of the collection and 

incinerator stacks of the respective production line. Such testing shall be conducted as outlined in condition 

3.3.10.a. and U.S. EPA Method 5E. This testing shall establish and/or verify the operating parameters for the 

respective control devices of the production line.

[45CSR14, R14-0015, 4.3.4.; 40 C.F.R. §60.685; 45CSR16]

3.3.14. Should the permittee elect to change binder formula or produce a product with a LOI that is greater than the one 

that was produced during a compliance test that demonstrated compliance with the permitted VOC, 

formaldehyde, and phenol limits of this permit, the permittee shall conduct performance testing within 180 days 

of after making such change to demonstrate compliance with the VOC, formaldehyde, and phenol emission 

limits. Such testing shall be conducted as prescribed in conditions 3.3.1. and 3.3.10. for VOC, formaldehyde, 

and phenol of the respective line that the change is effecting. This testing shall establish and/or verify the 

operating parameters for the respective control devices of the production line.

[45CSR14, R14-0015, 4.3.5.]
Title V Operating Permit R30-00300012-2008 MM01 Page 33 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

3.3.15. Performance tests shall be conducted under such conditions as the Administrator shall specify to the plant 

operator based on representative performance of the affected facility. The owner or operator shall make available 

to the Administrator such records as may be necessary to determine the conditions of the performance tests. 

Operations during periods of startup, shutdown, and malfunction shall not constitute representative conditions for 

the purpose of a performance test nor shall emissions in excess of the level of the applicable emission limit 

during periods of startup, shutdown, and malfunction be considered a violation of the applicable emission limit 

unless otherwise specified in the applicable standard.

[40 C.F.R. §60.8(c); 45CSR16]

3.3.16. In conducting the performance tests required in 40 C.F.R. §60.8, the owner or operator shall use as reference 

methods and procedures the test methods in appendix A of 40 C.F.R. 60 or other methods and procedures as 

specified in 40 C.F.R. §60.685, except as provided in 40 C.F.R. §60.8(b). 

[40 C.F.R. §60.685(a); 45CSR16]

3.3.17. The owner or operator shall conduct performance tests while the product with the highest loss on ignition (LOI) 

expected to be produced by the affected facility is being manufactured.

[40 C.F.R. §60.685(b); 45CSR16]

3.3.18. The owner or operator shall determine compliance with the particulate matter standard in 40 C.F.R. §60.682 as 

follows: 

(1) The emission rate (E) of particulate matter shall be computed for each run using the following equation: 

P K

C Q E

avg

t sd =

where: 

E = emission rate of particulate matter, kg/Mg (lb/ton). 

Ct = concentration of particulate matter, g/dscm (gr/dscf). 

Qsd = volumetric flow rate of effluent gas, dscm/hr (dscf/hr). 

Pavg = average glass pull rate, Mg/hr (ton/hr). 

K = 1,000 g/kg (7,000 gr/lb).

(2) Method 5E (40 C.F.R. part 60, Appendix A) shall be used to determine the particulate matter 

concentration (Ct) and the volumetric flow rate (Qsd) of the effluent gas. The sampling time and sample 

volume shall be at least 120 minutes and 2.55 dscm (90.1 dscf). 

(3) The average glass pull rate (Pavg) for the manufacturing line shall be the arithmetic average of three glass 

pull rate (Pi) determinations taken at intervals of at least 30 minutes during each run. The individual glass 

pull rates (Pi) shall be computed using the following equation: 





 



 



 



 = ′ − 100

1.0 LOI Pi K LsWmM

where: 

Pi = glass pull rate at interval "i", Mg/hr (ton/hr). 

Ls = line speed, m/min (ft/min). 

Wm = trimmed mat width, m (ft). 

M = mat gram weight, g/m2 (lb/ft2

). 

LOI = loss on ignition, weight percent. 
Title V Operating Permit R30-00300012-2008 MM01 Page 34 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

K' = conversion factor, 6 x 10-5 (min-Mg)/ (hr-g) [3 x 10-2 (min-ton)/(hr-lb)].

(i) ASTM D2584-68 (Reapproved 1985) or 94 (incorporated by reference -- see 40 C.F.R. § 60.17), 

shall be used to determine the LOI for each run.

(ii) Line speed (Ls), trimmed mat width (Wm), and mat gram weight (M) shall be determined for each 

run from the process information or from direct measurements.

[40 C.F.R. §60.685(c); 45CSR16]

3.4. Recordkeeping Requirements

3.4.1. Monitoring information. The permittee shall keep records of monitoring information that include the 

following:

a. The date, place as defined in this permit and time of sampling or measurements;

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 the analyses; and

f. The operating conditions existing at the time of sampling or measurement.

[45CSR§30-5.1.c.2.A.; 45CSR14, R14-0015, 4.4.1. and 5.4.1.]

3.4.2. Retention of records. The permittee shall retain records of all required monitoring data and support information 

for a period of at least five (5) years from the date of monitoring sample, measurement, report, application, or

record creation date. Support information includes all calibration and maintenance records and all original stripchart recordings for continuous monitoring instrumentation, and copies of all reports required by the permit. 

Where appropriate, records may be maintained in computerized form in lieu of the above records.

[45CSR§30-5.1.c.2.B.]

3.4.3. Odors. For the purposes of 45CSR4, the permittee shall maintain a record of all odor complaints received. Such 

record shall contain an assessment of the validity of the complaints as well as any corrective actions taken.

[45CSR§30-5.1.c. State-Enforceable only.]

3.4.4. As required by 40 C.F.R. §63.10(b) of 40 C.F.R. 63, the owner or operator shall maintain files of all information 

(including all reports and notifications) required by the general provisions of 40 C.F.R. 63 and this 40 C.F.R. 63 

Subpart NNN: 

(i) The owner or operator must retain each record for at least 5 years following the date of each 

occurrence, measurement, maintenance, corrective action, report, or record. The most recent 2 years of 

records must be retained at the facility. The remaining 3 years of records may be retained off site;

(ii) The owner or operator may retain records on microfilm, on a computer, on computer disks, on magnetic 

tape, or on microfiche; and 
Title V Operating Permit R30-00300012-2008 MM01 Page 35 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

(iii) The owner or operator may report required information on paper or on a labeled computer disk using 

commonly available and EPA-compatible computer software.

[40 C.F.R. §63.1386(d)(1); 45CSR34]

3.4.5. In addition to the general records required by 40 C.F.R. §63.10(b)(2), the owner or operator shall maintain 

records of the following information: 

(i) Any bag leak detection system alarms, including the date and time of the alarm, when corrective actions 

were initiated, the cause of the alarm, an explanation of the corrective actions taken, and when the cause 

of the alarm was corrected;

(v) The formulation of each binder batch and the LOI and density for each product manufactured on a 

rotary spin manufacturing line subject to the provisions of 40 C.F.R. 63 Subpart NNN, and the free 

formaldehyde content of each resin shipment received and used in the binder formulation;

(vi) Process parameter level(s) for RS manufacturing lines that use process modifications to comply with the 

emission limits, including any period when the parameter level(s) deviated from the established limit(s), 

the date and time of the deviation, when corrective actions were initiated, the cause of the deviation, an 

explanation of the corrective actions taken, and when the cause of the deviation was corrected;

(viii) Incinerator operating temperature and results of periodic inspection of incinerator components, 

including any period when the temperature fell below the established average or the inspection 

identified problems with the incinerator, the date and time of the problem, when corrective actions were 

initiated, the cause of the problem, an explanation of the corrective actions taken, and when the cause of 

the problem was corrected; 

(ix) Glass pull rate, including any period when the pull rate exceeded the average pull rate established 

during the performance test by more than 20 percent, the date and time of the exceedance, when 

corrective actions were initiated, the cause of the exceedance, an explanation of the corrective actions 

taken, and when the cause of the exceedance was corrected. 

[40 C.F.R. §63.1386(d)(2); 45CSR34]

3.4.6. Written records shall be maintained that identify all pumps, compressors, pressure relief valves, valves, sampling 

connections, open-ended lines, and flanges of a chemical processing unit that are in toxic air pollutant service. 

These records shall record the results of all monitoring and inspections, emissions control measures applied and 

the nature, timing, and results of repair efforts.

[45CSR§27-10.3. (State-enforceable only)]

3.4.7. The permittee shall monitor and record the hourly production on a daily basis for each line. These records shall 

include the monthly total and the 12 month rolling total for each line respectively.

[45CSR14, R14-0015, 4.2.1.]

3.4.8. The permittee shall monitor and record the free-formaldehyde and phenol content of each resins shipment 

received at the facility. The free-formaldehyde shall be determined using the method prescribed in Appendix B 

of 40 C.F.R. 63, Subpart NNN.

[40 C.F.R. §63.1383(j); 45CSR34; 45CSR14, R14-0015, 4.2.3.]

3.4.9. The permittee shall monitor and record the formulation of each batch of binder used.

[40 C.F.R. §63.1383(k); 45CSR34; 45CSR14, R14-0015, 4.2.4.]
Title V Operating Permit R30-00300012-2008 MM01 Page 36 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

3.4.10. The permittee shall monitor and record the product LOI and density of the each resinated product manufactured. 

The frequency of such monitoring shall not be less than once every eight hours. The LOI and density shall be 

determined using the methods prescribed in Appendix A and C of 40 CFR 63, Subpart NNN respectively.

[40 C.F.R. §63.1383(l); 45CSR34; 45CSR14, R14-0015, 4.2.5.]

3.4.11. Record of Maintenance of Air Pollution Control Equipment. For all pollution control equipment listed in 

subsection 1.1, the permittee shall maintain accurate records of all required pollution control equipment 

inspection and/or preventative maintenance procedures.

[45CSR14, R14-0015, 4.4.2. and 5.4.2.]

3.4.12. Record of Malfunctions of Air Pollution Control Equipment. For all air pollution control equipment 

listed in subsection 1.1, the permittee shall maintain records of the occurrence and duration of any 

malfunction or operational shutdown of the air pollution control equipment during which excess emissions 

occur. For each such case, the following information shall be recorded:

a. The equipment involved.

b. Steps taken to minimize emissions during the event.

c. The duration of the event.

d. The estimated increase in emissions during the event.

For each such case associated with an equipment malfunction, the additional information shall also be 

recorded:

e. The cause of the malfunction.

f. Steps taken to correct the malfunction.

g. Any changes or modifications to equipment or procedures that would help prevent future recurrences of 

the malfunction.

[45CSR14, R14-0015, 4.4.3. and 5.4.3.]

3.4.13. The permittee shall maintain records of the any and all testing conducted as required in subsection 3.3.

[45CSR14, R14-0015, 4.4.4.]

3.5. Reporting Requirements

3.5.1. Responsible official. Any application form, report, or compliance certification required by this permit to be 

submitted to the DAQ and/or USEPA shall contain a certification by the responsible official that states that, 

based on information and belief formed after reasonable inquiry, the statements and information in the document 

are true, accurate and complete.

[45CSR§30-4.4. and 5.1.c.3.D.]

3.5.2. A permittee may request confidential treatment for the submission of reporting required under 45CSR§30-

5.1.c.3. pursuant to the limitations and procedures of W.Va. Code § 22-5-10 and 45CSR31.

[45CSR§30-5.1.c.3.E.]
Title V Operating Permit R30-00300012-2008 MM01 Page 37 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

3.5.3. All notices, requests, demands, submissions and other communications required or permitted to be made to the 

Secretary of DEP and/or USEPA shall be made in writing and shall be deemed to have been duly given when 

delivered by hand, or mailed first class with postage prepaid to the address(es) set forth below or to such other 

person or address as the Secretary of the Department of Environmental Protection may designate:

Director

WVDEP

Division of Air Quality

601-57th Street

Charleston, WV 25304

Phone: 304/926-0499

FAX: 304/926-0478

Associate Director

Office of Enforcement and Permits Review 

(3AP12)

U. S. Environmental Protection Agency

Region III

1650 Arch Street

Philadelphia, PA 19103-2029

3.5.4. Certified emissions statement. The permittee shall submit a certified emissions statement and pay fees on an 

annual basis in accordance with the submittal requirements of the Division of Air Quality. A receipt for the 

appropriate fee shall be maintained on the premises for which the receipt has been issued, and shall be made 

immediately available for inspection by the Secretary or his/her duly authorized representative.

[45CSR§30-8.]

3.5.5. Compliance certification. The permittee shall certify compliance with the conditions of this permit on the forms 

provided by the DAQ. In addition to the annual compliance certification, the permittee may be required to 

submit certifications more frequently under an applicable requirement of this permit. The annual certification 

shall be submitted to the DAQ and USEPA on or before March 15 of each year, and shall certify compliance for 

the period ending December 31. The permittee shall maintain a copy of the certification on site for five (5) years 

from submittal of the certification.

[45CSR§30-5.3.e.]

3.5.6. Semi-annual monitoring reports. The permittee shall submit reports of any required monitoring on September 

15 for the reporting period January 1 to June 30 and March 15 for the reporting period July 1 to December 31. 

All instances of deviation from permit requirements must be clearly identified in such reports. All required 

reports must be certified by a responsible official consistent with 45CSR§30-4.4.

[45CSR§30-5.1.c.3.A.]

3.5.7. Emergencies. For reporting emergency situations, refer to Section 2.17 of this permit.

3.5.8. Deviations. 

a. In addition to monitoring reports required by this permit, the permittee shall promptly submit supplemental

reports and notices in accordance with the following:

1. Any deviation resulting from an emergency or upset condition, as defined in 45CSR§30-5.7., 

shall be reported by telephone or telefax within one (1) working day of the date on which the 

permittee becomes aware of the deviation, if the permittee desires to assert the affirmative 

defense in accordance with 45CSR§30-5.7. A written report of such deviation, which shall 

include the probable cause of such deviations, and any corrective actions or preventative 

measures taken, shall be submitted and certified by a responsible official within ten (10) days 

of the deviation.
Title V Operating Permit R30-00300012-2008 MM01 Page 38 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

2. Any deviation that poses an imminent and substantial danger to public health, safety, or the 

environment shall be reported to the Secretary immediately by telephone or telefax. A written 

report of such deviation, which shall include the probable cause of such deviation, and any 

corrective actions or preventative measures taken, shall be submitted by the responsible 

official within ten (10) days of the deviation.

3. Deviations for which more frequent reporting is required under this permit shall be reported on 

the more frequent basis.

4. All reports of deviations shall identify the probable cause of the deviation and any corrective 

actions or preventative measures taken.

[45CSR§30-5.1.c.3.C.]

b. The permittee shall, in the reporting of deviations from permit requirements, including those attributable 

to upset conditions as defined in this permit, report the probable cause of such deviations and any 

corrective actions or preventive measures taken in accordance with any rules of the Secretary.

[45CSR§30-5.1.c.3.B.]

c. Every report submitted under this subsection shall be certified by a responsible official.

[45CSR§30.5.1.c.3.D.]

3.5.9. New applicable requirements. If any applicable requirement is promulgated during the term of this permit, the 

permittee will meet such requirements on a timely basis, or in accordance with a more detailed schedule if 

required by the applicable requirement.

[45CSR§30-4.3.h.1.B.]

3.5.10. Notifications. As required by 40 C.F.R. §§ 63.9(b) through (h), the owner or operator shall submit the following 

written initial notifications to the Administrator:

(4) Notification of intention to construct a new major source or reconstruct a major source; of the date 

construction or reconstruction commenced; of the anticipated date of startup; of the actual date of 

startup, where the initial startup of a new or reconstructed source occurs after June 14, 2002, and for 

which an application for approval or construction or reconstruction is required (See 40 C.F.R. §§ 

63.9(b)(4) and (5));

(5) Notification of special compliance obligations; 

(6) Notification of performance test; and 

(7) Notification of compliance status.

[40 C.F.R. §63.1386(a); 45CSR34]

3.5.11. Performance test report. As required by 40 C.F.R. §63.10(d)(2) of the general provisions, the owner or 

operator shall report the results of the initial performance test as part of the notification of compliance status 

required in permit condition 3.5.10. (7).

[40 C.F.R. §63.1386(b); 45CSR34]
Title V Operating Permit R30-00300012-2008 MM01 Page 39 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

3.5.12. Startup, shutdown, and malfunction plan (SSMP). The owner or operator of an affected source must develop 

and implement a written startup, shutdown, and malfunction plan that describes, in detail, procedures for 

operating and maintaining the source during periods of startup, shutdown, and malfunction; a program of 

corrective action for malfunctioning process; and air pollution control and monitoring equipment used to comply 

with the relevant standard. This plan must be developed by the owner or operator by the source's compliance date 

for that relevant standard. The purpose of the startup, shutdown, and malfunction plan is to –

(A) Ensure that, at all times, the owner or operator operate and maintain affected sources, including associated 

air pollution control and monitoring equipment, in a manner consistent with safety and good air pollution 

control practices for minimizing emissions to the levels required by the relevant standards; 

(B) Ensure that owners or operators are prepared to correct malfunctions as soon as practicable after their 

occurrence in order to minimize excess emissions of hazardous air pollutants; and 

(C) Reduce the reporting burden associated with periods of startup, shutdown, and malfunction (including 

corrective action taken to restore malfunctioning process and air pollution control equipment to its normal 

or usual manner of operation).

This plan shall include:

(i) Procedures to determine and record the cause of the malfunction and the time the malfunction began 

and ended; 

(ii) Corrective actions to be taken in the event of a malfunction of a control device or process modification, 

including procedures for recording the actions taken to correct the malfunction or minimize emissions; 

and

(iii) A maintenance schedule for each control device and process modification that is consistent with the 

manufacturer's instructions and recommendations for routine and long-term maintenance.

[40 C.F.R. §§ 63.1386(c)(1), and 63.6(e)(3); 45CSR34]

3.5.13. The owner or operator shall also keep records of each event as required by 40 C.F.R. §63.10(b) and record and 

report if an action taken during a startup, shutdown, or malfunction is not consistent with the procedures in the 

plan as described in 40 C.F.R. §63.10(e)(3)(iv).

[40 C.F.R. §63.1386(c)(2); 45CSR34]

3.5.14. As required by 40 C.F.R. §63.10(e)(3)(v), the owner or operator shall report semiannually if measured emissions 

are in excess of the applicable standard or a monitored parameter deviates from the levels established during the 

performance test. The report shall contain the information specified in 40 C.F.R. §63.10(c) of this part as well as 

the additional records required by the recordkeeping requirements of 40 C.F.R. §63.1386 (d). When no 

deviations have occurred, the owner or operator shall submit a report stating that no excess emissions occurred 

during the reporting period.

[40 C.F.R. §63.1386(e); 45CSR34]

3.5.15. The emission to the air of any toxic air pollutant resulting from an abnormal release or spill in excess of the 

following amounts shall be reported to the Director or his authorized representative not later than 24-hours after 

the chemical processing unit owner/operator has knowledge of such emission:

a. For ethylene oxide, and vinyl chloride, one (1) pound

b. For acrylonitrile, and butadiene, ten (10) pounds

c. For all other toxic air pollutants, fifty (50) pounds
Title V Operating Permit R30-00300012-2008 MM01 Page 40 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

The owner or operator shall file a written report with the Director stating the details of all such incidents resulting 

in the emission of more than fifty (50) pounds of any toxic air pollutant within seven (7) days of the occurrence. 

The owner/operator shall submit to the Director, at his request, records of all abnormal toxic air pollutant 

discharges to the air.

[45CSR14, R14-0015, 5.5.1.; 45CSR§27-10.4. (State-enforceable only)]

3.5.16. The permittee shall submit the results of testing required in subsection 3.3. before the close of business on the 

60th day following the completion of such testing to the Director.

[45CSR14, R14-0015, 4.5.1.]

3.5.17. Any period of failure or inoperability of air pollution control equipment required by 45CSR27 shall be reported 

to the Director not later than 24-hours after the owner/operator has knowledge of such failure. Such reports shall 

be made in conjunction with necessary requests for variances as provided under 45CSR§27-12 (permit condition 

3.1.21.).

[45CSR§27-10.5. (State-enforceable only)]

3.6. Compliance Plan

3.6.1. There is no compliance plan since a responsible official certified compliance with all requirements in the renewal 

application.

3.7. Permit Shield

3.7.1. The permittee is hereby granted a permit shield in accordance with 45CSR§30-5.6. The permit shield applies 

provided the permittee operates in accordance with the information contained within this permit.

3.7.2. The following requirements specifically identified are not applicable to the source based on the 

determinations set forth below. The permit shield shall apply to the following requirements provided the 

conditions of the determinations are met.

3.7.2.1. 40 C.F.R. Part 64 – Compliance Assurance Monitoring

One or more of the following characteristics of the permittee’s emission units make the emission units, 

on a pollutant-specific basis, not subject to CAM.

a. The emission unit emits particulate matter, and thereby emissions of that pollutant are subject 

to 40 C.F.R. 60 Subpart PPP.

b. The emission unit emits a chromium compound or formaldehyde, and thereby emissions of 

that pollutant are subject to 40 C.F.R. 63 Subpart NNN.

c. The emission unit emits other criteria pollutant(s) or HAPs in pre-control amounts less than 

the respective major source threshold.

3.7.2.2. 45CSR10 to certain sources

The emission units in the following table are not subject to 45CSR10:
Title V Operating Permit R30-00300012-2008 MM01 Page 41 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

Emission Unit ID Description of Emission Unit Rationale for Non-applicability of 45CSR10

ESDG12 Emergency backup generator, 

diesel IC engine

Internal combustion engines, including gas turbines and 

emergency generators, are not subject to 45CSR10 as per 

Director’s verbal guidance.

ESDG13 Emergency backup generator, 

diesel IC engine

Internal combustion engines, including gas turbines and 

emergency generators, are not subject to 45CSR10 as per 

Director’s verbal guidance.

ESFW11 Fire suppression water, diesel IC 

engine

Internal combustion engines, including gas turbines and 

emergency generators, are not subject to 45CSR10 as per 

Director’s verbal guidance.

ESHW15 Hot water heaters (5 units) rated 

at 75,100 Btu/hr each

Not a “source operation” defined in 45CSR§10-2.19., 

therefore 4.1. does not apply. Also, exempt from sections 

3, and 6 through 8 since less than 10 MMBtu/hr (per 

45CSR§10-10.1.).

ESSH15 Space heating natural gas-fired 

make-up air heat exchanger, 

8.525 MMBtu/hr

Not a “source operation” defined in 45CSR§10-2.19., 

therefore 4.1. does not apply. Also, exempt from sections 

3, and 6 through 8 since less than 10 MMBtu/hr (per 

45CSR§10-10.1.).

ESSH16 Space heating natural gas-fired 

make-up air heat exchanger, 

7.875 MMBtu/hr

Not a “source operation” defined in 45CSR§10-2.19., 

therefore 4.1. does not apply. Also, exempt from sections 

3, and 6 through 8 since less than 10 MMBtu/hr (per 

45CSR§10-10.1.).

3.7.2.3. 40 C.F.R. 60 Subpart Kb - Standards of Performance for Volatile Organic Liquid Storage 

Vessels (Including Petroleum Liquid Storage Vessels) for Which Construction, Reconstruction, 

or Modification Commenced After July 23, 1984

All of the permittee’s tanks listed in section 1.1. of the permit were constructed after July 23, 1984. 

Also, the tanks are used to hold either volatile organic liquid or petroleum liquid. In addition to the 

construction date and content criteria, this regulation applies to each storage vessel with a capacity 

greater than or equal to 75 m3 (19,812.9 U.S. gallons). Each of the tanks listed in section 1.1. have 

a capacity less than this threshold; therefore, Subpart Kb does not apply.
Title V Operating Permit R30-00300012-2008 MM01 Page 42 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

4.0. Source-Specific Requirements [Raw Material Handling Operation (Group 001) and emission unit IDs 

ES1A, CD1A, ES1B, CD1B, ES1C, ES1D, CD1D, ES1E, ES1F, CD1F, ES1G, CD1G, ES1H, ES1I, 

CD1I, ES1J, CD1F, ES1K, CD1K, ES12A, CD12A, ES22A, CD22A, ES12B, CD22D, CD12D, ES22B, 

CD22C, ES12D, CD12C, ES22D, ES12Db, CD12Cb, CD22Cb; Tanks (Group 1) with emission Unit IDs

T3, T4, T5, T6, T7A, T7B, T8, M1, M2, M3, M4, M5, M6, M7, M8, and M9] – Emission Point I.D. FP11

4.1. Limitations and Standards

4.1.1. The following storage devices shall be equipped and operated with the corresponding control devices or an 

equivalent bin vent manufactured by Whirl-Air or IAC or equivalent:

Emission 

Unit ID

Description Control Equipment Control 

Device ID

ES1A Raw Material Storage Bin

(sand) Whirl-Air Flow Bin-Vent Model 195-42 CD1A

ES1B Raw Material Storage Bin

(borax) Whirl-Air Flow Bin-Vent Model 195-42 CD1B

ES1C Raw Material Storage Bin

(borax) Whirl-Air Flow Bin-Vent Model 195-42 CD1B

ES1D Raw Material Storage Bin

(soda ash) Whirl-Air Flow Bin-Vent Model 195-42 CD1D

ES1E Raw Material Storage Bin

(soda ash) Whirl-Air Flow Bin-Vent Model 195-42 CD1D

ES1F Raw Material Storage Bin

(aplite) Whirl-Air Flow Bin-Vent Model 195-42 CD1F

ES1G Raw Material Storage Bin

(spare) Whirl-Air Flow Bin-Vent Model 195-42 CD1G

ES1H Raw Material Storage Bin

(cullet) Whirl-Air Flow Bin-Vent Model 195-42 CD1I

ES1I Raw Material Storage Bin

(cullet) Whirl-Air Flow Bin-Vent Model 195-42 CD1I

ES1J Raw Material Storage Bin

(lime) Whirl-Air Flow Bin-Vent Model 195-42 CD1F

ES1K Raw Material Storage Bin

(baghouse dust) Whirl-Air Flow Bin-Vent Model 195-42 CD1K

ES12A Batch Mixer Receiving Hopper

(1st Line) Whirl-Air Flow Bin-Vent Model 345-56 CD12A

ES22A Batch Mixer Receiving Hopper

(2nd Line) IAC Bin-Vent Model No. 96TB-FRIP CD22A

ES12B Mixed Batch Storage Day Bin

(1st Line) Whirl-Air Flow Bin-Vent Model 260-42 CD12D

ES22B Mixed Batch Storage Bin

(2nd Line) IAC Bin-Vent Model No. 96TB-FRIP CD22C

ES12D Mixed Batch Storage Day Bin

(1st Line) Whirl-Air Flow Bin-Vent Model 230-56 CD12C

ES12Db Mixed Batch Storage Bin 

(1st Line) Whirl-Air Flow Bin-Vent Model 55-30 CD12Cb

[45CSR14, R14-0015, 5.1.1.]
Title V Operating Permit R30-00300012-2008 MM01 Page 43 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

4.1.2 The four resin (T3, T4, T5, and T6) and two de-dusting oil (T7A and T7B) storage tanks shall not be operated 

in such a manner where the combined total potential to emit of VOCs exceed over 1,695 pounds of VOCs per 

year.

[45CSR14, R14-0015, 5.1.11.]

4.1.3. The pre-react tanks (mixing tank M1 and holding tanks M2 and M3) shall not be operated in such a manner 

where the combined total potential to emit of VOC from these sources exceed over 11.8 tons of VOCs per year.

[45CSR14, R14-0015, 5.1.12.]

4.1.4. On and after the date on which the performance test required to be conducted by 40 C.F.R. §§ 63.7 and 63.1384 

is completed, the owner or operator must operate all affected control equipment and processes according to the 

following requirements. 

(i) The owner or operator must use a resin in the formulation of binder such that the free-formaldehyde content 

of the resin used does not exceed the free-formaldehyde range contained in the specification for the resin 

used during the performance test as specified in 40 C.F.R. §63.1384. 

(ii) The owner or operator must use a binder formulation that does not vary from the specification and 

operating range established and used during the performance test as specified in 40 C.F.R. § 63.1384. For 

the purposes of this standard, adding or increasing the quantity of urea and/or lignin in the binder 

formulation does not constitute a change in the binder formulation. 

[40 C.F.R. §§ 63.1382(b)(9) and (10); 45CSR34]

4.1.5. Owners and operators of chemical processing units or facilities subject to the requirements of this regulation 

shall prevent and control working and filling losses of toxic air pollutants from tanks by routing such tank 

emissions to BAT control devices. The Director may approve the use of floating roof storage tanks as BAT, 

provided that such tanks are designed and operated in a manner which minimizes toxic air pollutant emissions 

taking into consideration the toxic air pollutant emission rate, tank size, and control efficiency associated with 

such tanks. On a case-by-case basis, the Director may exempt very small process or storage tanks or tanks 

storing material mixtures containing low mass fractions of toxic air pollutants from the BAT requirements 

taking into consideration the actual level of emissions control and/or the toxic air pollutant emission rate from 

the tank.

[45CSR§27-5.1. (State-enforceable only)] (M1, M2, M3, M4, M5, M6, M7, M8, M9, T3, T4, T5, T6, and T8)

4.1.6. The amount of resin consumed shall not exceed 1,692,850 gallons per year, calculated as the sum during a 

consecutive 12 month period.

[45CSR14, R14-0015, 5.1.9.]

4.1.7. The amount of de-dusting oil consumed shall not exceed 1,144,095 gallons per year, calculated as the sum 

during a consecutive 12 month period

[45CSR14, R14-0015, 5.1.10.]

4.1.8. No person shall cause, suffer, allow or permit visible emissions from any storage structure(s) associated with 

any manufacturing process(es) that pursuant to 45CSR§7-5.1. (See permit condition 3.1.13.) is required to have 

a full enclosure and be equipped with a particulate matter control device.

[45CSR§7-3.7.] (ES1A, ES1B, ES1C, ES1D, ES1E, ES1F, ES1G, ES1H, ES1I, ES1J, ES1K, ES12A, ES22A, 

ES12B, ES22B, ES22Bb, ES12D, ES12Db)

4.2 Monitoring Requirements

4.2.1. Reserved.
Title V Operating Permit R30-00300012-2008 MM01 Page 44 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

4.3 Testing Requirements

4.3.1. Reserved.

4.4 Recordkeeping Requirements

4.4.1. To demonstrate compliance with condition 4.1.6., the permittee shall monitor and record on a monthly basis the 

amount of resin consumed at the permitted facility. 

[45CSR14, R14-0015, 5.2.1.]

4.4.2. To demonstrate compliance with conditions 4.1.2. and 4.1.7., the permittee shall monitor and record on a 

monthly basis the amount of de-dusting oil and wax emulsion consumed at the permitted facility. 

[45CSR14, R14-0015, 5.2.2.]

4.4.3. To demonstrate compliance with condition 4.1.4., refer to conditions 3.4.8. and 3.4.9.

4.4.4. To demonstrate compliance with condition 4.1.3., the permittee shall monitor and record on a monthly basisthe 

actual raw material throughput for the pre-react tanks (mixing tank M1 and holding tanks M2 and M3).

[45CSR§§30-5.1.c. and 12.7.]

4.5 Reporting Requirements

4.5.1. Reserved.

4.6 Compliance Plan

4.6.1. There is no compliance plan since a responsible official certified compliance with all requirements in the 

renewal application.
Title V Operating Permit R30-00300012-2008 MM01 Page 45 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

5.0 Source-Specific Requirements [Melting & Refining Line #1 (Group 002) and emission unit IDs ES12C, 

CD12B, CD12Bb (backup) – Emission Point I.D. EP12] and Melting & Refining Line #2 (Group 003)

and emission unit IDs ES22C, CD22B, CD22Bb (backup) – Emission Point I.D. EP22]

5.1. Limitations and Standards

5.1.1. On and after the date the initial performance test is completed or required to be completed under 40 C.F.R. 

§63.7, whichever date is earlier, the owner or operator shall not discharge or cause to be discharged into the 

atmosphere in excess of 0.25 kilogram (kg) of particulate matter (PM) per megagram (Mg) (0.5 pound [lb] of 

PM per ton) of glass pulled for each new or existing glass-melting furnace.

[40 C.F.R. §63.1382(a)(1); 45CSR34] (Emission Point IDs: EP12 and EP22)

5.1.2. On and after the date on which the performance test required to be conducted by 40 C.F.R. §§ 63.7 and 63.1384 

is completed, the owner or operator must operate all affected control equipment and processes according to the 

following requirements.

(i) The owner or operator must initiate corrective action within 1 hour of an alarm from a bag leak 

detection system and complete corrective actions in a timely manner according to the procedures in the 

operations, maintenance, and monitoring plan (permit condition 3.2.1.).

(ii) The owner or operator must implement a Quality Improvement Plan (QIP) consistent with the 

compliance assurance monitoring provisions of 40 CFR part 64, subpart D when the bag leak detection 

system alarm is sounded for more than 5 percent of the total operating time in a 6-month block 

reporting period.

[40 C.F.R. §63.1382(b)(1); 45CSR34] (Control Device IDs: CD12B, CD12Bb, CD22B, CD22Bb)

5.1.3. On and after the date on which the performance test required to be conducted by 40 C.F.R §§ 63.7 and 63.1384 

is completed, the owner or operator must operate all affected control equipment and processes according to the 

following requirements.

(i) The owner or operator must initiate corrective action within 1 hour when the average glass pull rate of 

any 4-hour block period for glass melting furnaces equipped with continuous glass pull rate monitors, 

or daily glass pull rate for glass melting furnaces not so equipped, exceeds the average glass pull rate 

established during the performance test as specified in 40 C.F.R. §63.1384, by greater than 20 percent 

and complete corrective actions in a timely manner according to the procedures in the operations, 

maintenance, and monitoring plan (permit condition 3.2.1.).

(ii) The owner or operator must implement a QIP consistent with the compliance assurance monitoring 

provisions of 40 C.F.R. Part 64, subpart D when the glass pull rate exceeds, by more than 20 percent, 

the average glass pull rate established during the performance test as specified in 40 C.F.R. § 63.1384 

for more than 5 percent of the total operating time in a 6-month block reporting period.

(iii) The owner or operator must operate each glass-melting furnace such that the glass pull rate does not 

exceed, by more than 20 percent, the average glass pull rate established during the performance test as 

specified in 40 C.F.R. § 63.1384 for more than 10 percent of the total operating time in a 6-month 

block reporting period. 

[40 C.F.R. §63.1382(b)(5); 45CSR34] (Emission Unit IDs: ES12C, ES12E, ES22C, ES22E)
Title V Operating Permit R30-00300012-2008 MM01 Page 46 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

5.1.4. Production of fiberglass insulation from the 1st line shall not exceed 8,000 pounds of glass pulled per hour or 

35,040 TPY. Compliance with this limit shall be based on a 12-month rolling total.

[45CSR14, R14-0015, 4.1.1.a.] (Emission Unit IDs: ES12C, ES12E)

5.1.5. Production of fiberglass insulation from the 2nd line shall not exceed 8,000 pounds of glass pulled per hour and 

35,040 TPY. Compliance with this limit shall be based on a 12-month rolling total.

[45CSR14, R14-0015, 4.1.2.a.] (Emission Unit IDs: ES22C, ES22E)

5.1.6. Emissions from the line shall not exceed the following limits with respect to the corresponding emission point 

and pollutant:

Emission Limits for 1st and 2nd Lines

Emission 

Point ID

CO 

(lb/TGP)

NOx 

(lb/TGP)

PM 

(lb/TGP)

PM10

(lb/TGP)

EP12 0.73 0.03 0.07 0.07

EP22 0.73 0.03 0.07 0.07

lb/TGP – pounds of pollutant per ton of glass pulled

[45CSR14, R14-0015, 4.1.1.b. and 4.1.2.b.]

5.1.7. Exhaust from the electric melter (ES12C) shall be vented into a closed loop system that routes this stream 

directly to either one of identified baghouses (CD12B or CD12Bb) at all times when the line is operating.

[45CSR14, R14-0015, 4.1.1.c.]

5.1.8. Exhaust from the electric melter (ES22C) shall be vented into a closed loop system that routes this stream 

directly to either one of identified baghouses (CD22B or CD22Bb) at all times when the line is operating

[45CSR14, R14-0015, 4.1.2.c.]

5.2. Monitoring Requirements

5.2.1. Where a baghouse is used to control PM emissions from a glass-melting furnace, the owner or operator shall 

install, calibrate, maintain, and continuously operate a bag leak detection system. 

(i) The bag leak detection system must be certified by the manufacturer to be capable of detecting PM 

emissions at concentrations of 10 milligrams per actual cubic meter (0.0044 grains per actual cubic foot) or 

less.

(ii) The bag leak detection system sensor must produce output of relative PM emissions.

(iii) The bag leak detection system must be equipped with an alarm system that will sound automatically when 

an increase in relative PM emissions over a preset level is detected and the alarm must be located such that 

it can be heard by the appropriate plant personnel.

(iv) For positive pressure fabric filter systems, a bag leak detection system must be installed in each baghouse 

compartment or cell. If a negative pressure or induced air baghouse is used, the bag leak detection system 

must be installed downstream of the baghouse. Where multiple bag leak detection systems are required (for 

either type of baghouse), the system instrumentation and alarm may be shared among the monitors.
Title V Operating Permit R30-00300012-2008 MM01 Page 47 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

(v) A triboelectric bag leak detection system shall be installed, operated, adjusted, and maintained in a manner 

consistent with the U.S. Environmental Protection Agency guidance, "Fabric Filter Bag Leak Detection 

Guidance" (EPA-454/R-98-015, September 1997). Other bag leak detection systems shall be installed, 

operated, adjusted, and maintained in a manner consistent with the manufacturer's written specifications 

and recommendations.

(vi) Initial adjustment of the system shall, at a minimum, consist of establishing the baseline output by adjusting 

the range and the averaging period of the device and establishing the alarm set points and the alarm delay 

time.

(vii)Following the initial adjustment, the owner or operator shall not adjust the range, averaging period, alarm 

setpoints, or alarm delay time except as detailed in the approved operations, maintenance, and monitoring 

plan (permit condition 3.2.1.). In no event shall the range be increased by more than 100 percent or 

decreased more than 50 percent over a 365-day period unless a responsible official as defined in 40 C.F.R. 

§63.2 of the general provisions in 40 C.F.R. 63 Subpart A of this part certifies that the baghouse has been 

inspected and found to be in good operating condition.

A bag leak detection system (BLDS) shall be installed and operated on the fabric filter baghouses identified as 

CD12B, CD12Bb, CD22B, and CD22Bb.

[40 C.F.R. §63.1383(b)(1); 45CSR34; 45CSR14, R14-0015, 4.1.3.a.]

5.2.2. On and after the date on which the performance test required to be conducted by 40 C.F.R. §§ 63.7 and 63.1384 

is completed, the owner or operator must monitor all affected control equipment and processes according to the 

following requirements.

(1) The owner or operator of an existing glass-melting furnace equipped with continuous glass pull rate 

monitors must monitor and record the glass pull rate on an hourly basis. For glass-melting furnaces 

that are not equipped with continuous glass pull rate monitors, the glass pull rate must be monitored 

and recorded once per day.

(2) On any new glass-melting furnace, the owner or operator must install, calibrate, and maintain a 

continuous glass pull rate monitor that monitors and records on an hourly basis the glass pull rate.

[40 C.F.R. §63.1383(f); 45CSR34; 45CSR14, R14-0015, 4.1.2.g.]

5.3. Testing Requirements

5.3.1. To demonstrate compliance with condition 5.1.1., refer to condition 3.3.6.

5.3.2. To demonstrate compliance with condition 5.1.6., refer to conditions 3.3.8.

5.4. Recordkeeping Requirements

5.4.1. The permittee shall record the date and time of any bag leak detection system alarm. Such record shall include 

when corrective actions were initiated, the cause of the alarm, an explanation of the corrective actions taken, 

and when the cause of the alarm was corrected.

[40 C.F.R. §63.1386(d)(2)(i); 45CSR34; 45CSR14, R14-0015, 4.4.5.]
Title V Operating Permit R30-00300012-2008 MM01 Page 48 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

5.5. Reporting Requirements

5.5.1. To demonstrate compliance with the operational requirements of conditions 5.1.7. and 5.1.8., the permittee shall 

submit a corresponding statement of compliance as part of the semiannual monitoring report required in 

condition 3.5.6.

[45CSR§30-5.3.e.]

5.6. Compliance Plan

5.6.1. There is no compliance plan since a responsible official certified compliance with all requirements in the 

renewal application.
Title V Operating Permit R30-00300012-2008 MM01 Page 49 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

6.0. Source-Specific Requirements [Forming & Collecting Line 1 (Group 004) and Emission Unit IDs 

ES12E, ES13A, ES13B, ES13C, CD13A, and CD13B – Emission Point ID EP13] and [Forming & 

Collecting Line 2 (Group 005) and emission unit IDs ES22E, ES23A, ES23B, ES23C, CD23A, CD23B, 

and CD23C - Emission Point ID EP23]

6.1. Limitations and Standards

6.1.1. Rotary spin manufacturing lines. On and after the date the initial performance test is completed or required to

be completed under 40 C.F.R. §63.7 (permit condition 3.3.5.), whichever date is earlier, the owner or operator 

shall not discharge or cause to be discharged into the atmosphere in excess of:

(i) 0.6 kg of formaldehyde per megagram (1.2 lb of formaldehyde per ton) of glass pulled for each 

existing rotary spin manufacturing line.

(ii) 0.4 kg of formaldehyde per megagram (0.8 lb of formaldehyde per ton) of glass pulled for each new 

rotary spin manufacturing line.

[40 C.F.R. §63.1382(a)(2); 45CSR34]

6.1.2. Emissions from the line shall not exceed the following limits with respect to the corresponding emission point 

and pollutant:

Emission Limits for 1st and 2nd Lines

Emission 

Point ID

CO 

(lb/TGP)

NOx 

(lb/TGP)

PM 

(lb/TGP)

PM10

(lb/TGP)

VOC (1)

(lb/TGP)

HCOH 

(lb/TGP)

Phenol 

(lb/TGP)

NH3

(lb/TGP)

EP13 5.28 0.32 3.47 3.47 2.86 (2) 0.80 (2) 1.55 (2) 3.77

EP23 5.28 0.32 3.25 3.25 2.86 (3) 0.80 (3) 1.55 (3) 3.77

lb/TGP – pounds of pollutant per ton of glass pulled.

(1) VOC emissions shall not include methane and ethane.

(2) Compliance with the emission limit shall be the sum of the respective pollutant from both EP13 and EP14 

(condition 7.1.1.).

(3) Compliance with the emission limit shall be the sum of the respective pollutant from both EP23 and EP24 

(condition 7.1.1.).

[45CSR14, R14-0015, 4.1.1.b. and 4.1.2.b.]

6.1.3. The fiberizers and forehearth of the 1st line shall be operated in such a manner the following air to fuel ratios are 

not exceeded:

Thermox Gas Ratio Setting for the fiberizers: 962 millvolts

Thermox Gas Ratio Setting for the forehearth: 823 millvolts

[45CSR14, R14-0015, 4.1.1.d.]

6.1.4. The fiberizers and forehearth of the 2nd line shall be operated in such a manner the following air to fuel ratios 

are not exceeded:

Thermox Gas Ratio Setting for the fiberizers: 962 millvolts

Thermox Gas Ratio Setting for the forehearth: 823 millvolts

[45CSR14, R14-0015, 4.1.2.d.]
Title V Operating Permit R30-00300012-2008 MM01 Page 50 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

6.1.5. Exhaust from the forehearth and fiberizers of the 1st line shall be vented into a closed loop system that routes 

this stream directly to either one of identified water sprays with drop-out boxes (CD13A or CD13B) at all times 

when the line is operating.

[45CSR14, R14-0015, 4.1.1.e.]

6.1.6. Exhaust from the forehearth and fiberizers of the 2nd line shall be vented into a closed loop system that routes 

this stream directly to one of three venturi scrubbers (CD23A, CD23B, or CD23C). Scrubbers CD23A or / and 

CD23B shall be operated when one or more of the fiberizers over the large collection chamber is in operation. 

Scrubber CD23C shall be operated when one or more of the fiberizers over the small collection chamber is in 

operation. 

[45CSR14, R14-0015, 4.1.2.e.]

6.1.7. Each fiberizer that produces resinated (bonded) fiberglass shall be equipped, maintained, and operated with an

advance water-jet ring to minimize formaldehyde emissions from the fiber forming process.

[45CSR14, R14-0015, 4.1.3.b.]

6.2. Monitoring Requirements

6.2.1. An owner or operator subject to the provisions of this 40 C.F.R. 60 Subpart PPP who uses a wet scrubbing 

control device to comply with the mass emission standard shall install, calibrate, maintain, and operate 

monitoring devices that measure the gas pressure drop across each scrubber and the scrubbing liquid flow rate 

to each scrubber. The pressure drop monitor is to be certified by its manufacturer to be accurate within 250

Pascal (±1 inch water gauge) over its operating range, and the flow rate monitor is to be certified by its 

manufacturer to be accurate within 5 percent over its operating range.

[40 C.F.R. §60.683(a); 45CSR16]

6.2.2. All monitoring devices required under 40 C.F.R. §60.683 (conditions 6.2.4. and 6.2.5.) are to be recalibrated 

quarterly in accordance with procedures under 40 C.F.R. §60.13(b).

[40 C.F.R. §60.683(c); 45CSR16]

6.2.3. The permittee shall install, calibrate, maintain, and operate two Thermox Premix (air to fuel) analyzers to 

measure and record the air to fuel ratio being fed to the fiberizers and forehearth for each production line. Each 

analyzer shall be maintained in such a way that the analyzer is available to analyze samples 90 percent of the 

time or greater. Each analyzer shall be calibrated once a month in accordance with the manufacturer’s 

specifications and follow the Quality & Assurance guidelines recommended by the manufacturer. Readings 

shall be taken and recorded twice a day with a minimum of ten hours between readings.

[45CSR14, R14-0015, 4.2.6.]

6.2.4. A device that continuously measures and records the pressure drop across the scrubber shall be installed, 

calibrated, maintained, and operated for each venturi scrubber (CD23A, CD23B, CD23C, and CD24B). Such 

device is to be certified by its manufacturer to be accurate within ± 250 pascals (± 1 inch water gauge) over its 

operating range.

[45CSR14, R14-0015, 4.1.3.c. and 4.2.2.; 40 C.F.R. §60.683(a); 45CSR16]
Title V Operating Permit R30-00300012-2008 MM01 Page 51 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

6.2.5. A device that continuously measures and records the scrubbing liquid flow to each scrubber and drop-out box 

shall be installed, calibrated, maintained, and operated for each venturi scrubber and drop-out box (CD13A, 

CD13B, CD23A, CD23B, CD23C, and CD24B). Such device is to be certified by its manufacturer to be 

accurate within ± 5 percent over its operating range.

[45CSR14, R14-0015, 4.1.3.d. and 4.2.2.; 40 C.F.R. §60.683(a); 45CSR16]

6.2.6. A device that continuously measures and records the scrubbing liquid pressure at delivery to each drop-out box 

shall be installed, calibrated, maintained, and operated for each drop-out box (CD13A, and CD13B). Such 

device is to be certified by its manufacturer to be accurate within ± 5 percent over its operating range.

[45CSR14, R14-0015, 4.1.3.e. and 4.2.2.]

6.3. Testing Requirements

6.3.1. To demonstrate compliance with condition 6.1.1., refer to condition 3.3.7.

6.3.2. To comply with 40 C.F.R. §60.684(d) (permit condition 6.4.3.), the owner or operator shall record 

measurements as required in 40 C.F.R. §60.684(a) (permit condition 6.4.1.) using the monitoring devices in 40 

C.F.R. §60.683(a) (permit condition 6.2.1.) during the particulate matter runs.

[40 C.F.R. §60.685(d); 45CSR16]

6.3.3. To demonstrate compliance with the ammonia (NH3) emission limits in 6.1.2., the permittee shall use US EPA 

Method 320 (FTIR) or US EPA Method CTM-027 (wet chemistry). Testing shall be performed within 180 days

after making a binder formulation change or if the facility needs to qualify a higher LOI than previously 

qualified. During such testing, the permittee shall also demonstrate compliance with the VOC, formaldehyde, 

and phenol emission limits in accordance with condition 3.3.14.

[45CSR§30-12.7.]

6.4. Recordkeeping Requirements

6.4.1. At 30-minute intervals during each 2-hour test run of each performance test of a wet scrubber control device and 

drop-out boxes at least once every 4 hours thereafter, the owner or operator shall record the measurements 

required by 40 C.F.R. §60.683(a) (condition 6.2.1. of this permit).

[40 C.F.R. §60.684(a); 45CSR16; 45CSR14, R14-0015, 4.5.2.]

6.4.2. Records of the measurements required in paragraph (a) of 40 C.F.R. §60.684 (condition 6.4.1. of this permit) 

must be retained for at least 2 years.

[40 C.F.R. §60.684(c); 45CSR16]

6.4.3. Each owner or operator shall submit written semiannual reports of exceedances of control device (CD13A, 

CD13B, CD23A, CD23B, and CD23C) operating parameters required to be monitored by paragraph (a) of 40 

C.F.R. §60.684 (condition 6.4.1. of this permit) and written documentation of, and a report of corrective 

maintenance required as a result of, quarterly calibrations of the monitoring devices required in 40 C.F.R. 

§60.683(c) (condition 6.2.2. of this permit). For the purpose of these reports, exceedances are defined as any 

monitoring data that are less than 70 percent of the lowest value or greater than 130 percent of the highest value 

of each operating parameter recorded during the most recent performance test.

[40 C.F.R. §60.684(d); 45CSR16; 45CSR14, R14-0015, 4.5.2.]
Title V Operating Permit R30-00300012-2008 MM01 Page 52 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

6.5. Reporting Requirements

6.5.1. To demonstrate compliance with the operational requirements of conditions 6.1.5. and 6.1.6., the permittee shall 

submit a corresponding statement of compliance as part of the semiannual monitoring report required in 

condition 3.5.6.

[45CSR§30-5.3.e.]

6.6. Compliance Plan

6.6.1. There is no compliance plan since a responsible official certified compliance with all requirements in the 

renewal application.
Title V Operating Permit R30-00300012-2008 MM01 Page 53 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

7.0 Source-Specific Requirements [Curing & Cooling Line 1 Group 006 and emission unit ID(s) (ES14A, 

CD14A, and ES14B) – Emission I.D. EP-14] and [Curing & Cooling Line 2 Group 007 and emission 

point unit ID(s) (ES24A, CD24A, ES24B, and CD24B) – Emission Point I.D. EP-24]

7.1. Limitations and Standards

7.1.1. Emissions from the line shall not exceed the following limits with respect to the corresponding emission point 

and pollutant:

Emission Limits for 1st and 2nd Lines

Emission 

Point ID

CO 

(lb/TGP)

NOx 

(lb/TGP)

PM 

(lb/TGP)

PM10

(lb/TGP)

VOC (1)

(lb/TGP)

HCOH 

(lb/TGP)

Phenol 

(lb/TGP)

NH3

(lb/TGP)

EP14 1.13 3.75 0.46 0.46 2.86 (2) 0.80 (2) 1.55 (2) 0.87

EP24 1.31 3.75 0.93 0.93 2.86 (3) 0.80 (3) 1.55 (3) 0.87

lb/TGP – pounds of pollutant per ton of glass pulled.

(1) VOC emissions shall not include methane and ethane.

(2) Compliance with the emission limit shall be the sum of the respective pollutant from both EP14 and EP13 

(condition 6.1.2).

(3) Compliance with the emission limit shall be the sum of the respective pollutant from both EP24 and EP23 

(condition 6.1.2).

[45CSR14, R14-0015, 4.1.1.b. and 4.1.2.b.]

7.1.2. Exhaust from the curing oven shall be vented into a closed loop system that routes this stream directly to the 

United McGill Thermal Oxidizer identified as CD14A at all times when the line is operating. The oxidizer shall 

be operated and maintained in accordance with the following:

i. The temperature of combustion chamber shall not fall below 1,500oF or the average temperature recorded 

during the most recent performance testing that demonstrated compliance with the VOC, formaldehyde, 

and phenol emissions limits. Compliance with this limit shall be based on rolling three hour average.

ii. The oxidizer shall not consume more than 5,000 cubic feet of natural gas per hour or 43.8 MMscf per year

[45CSR14, R14-0015, 4.1.1.f.; 40 C.F.R. §63.1382(b)(6); 45CSR34]

7.1.3. Exhaust from the curing oven shall be vented into a closed loop system that routes this stream directly to the 

McGill AirClean Thermal Oxidizer identified as CD24A at all times when the line is operating. The oxidizer 

shall be operated and maintained in accordance with the following:

i. The temperature of combustion chamber shall not fall below 1,500oF or the average temperature recorded 

during the most recent performance testing that demonstrated compliance with the VOC, formaldehyde, 

and phenol emissions limits. Compliance with this limit shall be based on rolling three hour average.

ii. The oxidizer shall not consume more than 5,000 cubic feet of natural gas per hour or 43.8 MMscf per year

[45CSR14, R14-0015, 4.1.2.f.; 40 C.F.R. §63.1382(b)(6); 45CSR34]

7.1.4. Exhaust from the cooling table of the 2nd line shall be vented into a closed loop system that routes this stream 

directly to a venturi scrubber (CD24B) at all times when the line is operating.

[45CSR14, R14-0015, 4.1.2.h.]
Title V Operating Permit R30-00300012-2008 MM01 Page 54 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

7.2. Monitoring Requirements

7.2.1. Thermal Incinerator Firebox Temperature Monitoring

(1) The owner or operator who uses an incinerator to control formaldehyde emissions from forming or 

curing shall install, calibrate, maintain, and operate a monitoring device that continuously measures 

and records the operating temperature in the firebox of each incinerator. 

(2) The owner or operator must inspect each incinerator at least once per year according to the 

procedures in the operations, maintenance, and monitoring plan (permit condition 3.2.1.). At a 

minimum, an inspection must include the following: 

(i) Inspect all burners, pilot assemblies, and pilot sensing devices for proper operation and clean 

pilot sensor, as necessary; 

(ii) Ensure proper adjustment of combustion air and adjust, as necessary; 

(iii) Inspect, when possible, internal structures, for example, baffles, to ensure structural integrity 

per the design specifications; 

(iv) Inspect dampers, fans, and blowers for proper operation; 

(v) Inspect for proper sealing; 

(vi) Inspect motors for proper operation; 

(vii) Inspect combustion chamber refractory lining and clean and repair/replace lining, as 

necessary; 

(viii) Inspect incinerator shell for corrosion and/or hot spots; 

(ix) For the burn cycle that follows the inspection, document that the incinerator is operating 

properly and make any necessary adjustments; and 

(x) Generally observe that the equipment is maintained in good operating condition. 

(xi) Complete all necessary repairs as soon as practicable.

[40 C.F.R. §63.1383(g); 45CSR34]

7.2.2. A device that continuously measures and records the temperature of the combustion chamber for each thermal 

oxidizer (CD14A, CD24A) shall be installed, calibrated, maintained, and continuously operated. Such device 

shall be certified by the manufacturer to be accurate within ± one (1) degree Fahrenheit.

[45CSR14, R14-0015, 4.1.3.g. and 4.2.2.]

7.2.3. Refer to permit condition 6.2.4. for CD24B.

7.2.4. Refer to permit condition 6.2.5. for CD24B.
Title V Operating Permit R30-00300012-2008 MM01 Page 55 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

7.3. Testing Requirements

7.3.1 To demonstrate compliance with the ammonia (NH3) emission limits in 7.1.1., the permittee shall use US EPA 

Method 320 (FTIR) or US EPA Method CTM-027 (wet chemistry). Testing shall be performed within 180 days

after making a binder formulation change or if the facility needs to qualify a higher LOI than previously 

qualified. During such testing, the permittee shall also demonstrate compliance with the VOC, formaldehyde, 

and phenol emission limits in accordance with condition 3.3.14.

[45CSR§30-12.7.]

7.4. Recordkeeping Requirements

7.4.1. To demonstrate compliance with conditions 7.1.2.ii. and 7.1.3.ii., the permittee shall maintain monthly records 

and 12 month rolling total of hours operated and natural gas consumed by the United McGill Thermal Oxidizer 

Model 2-151C306 (CD14A) and the McGill AirClean Thermal Oxidizer Model MCT 30.0 (CD24A).

[45CSR§30-5.1.c.]

7.5. Reporting Requirements

7.5.1. Reserved.

7.6. Compliance Plan

7.6.1. There is no compliance plan since a responsible official certified compliance with all requirements in the 

renewal application.
Title V Operating Permit R30-00300012-2008 MM01 Page 56 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

8.0 Source-specific Requirements [Facing Sizing & Packaging for Line 1 (Group 008) and emission unit IDs 

ES15A, ES15B, CD15A, ES15C, ES15D, ES15E, ES15F, ES15G, ES15H, ES15I, and ES15J – Emission 

Point ID FP15] and [Facing Sizing & Packaging for Line 2 (Group 008) and emission unit IDs ES25A, 

ES25B, CD25A, ES25C, ES25D, ES25E, ES25F, ES25G, ES25H, ES25I, ES25J, CD25B, ES25K, and 

ES25L – Emission Point ID FP15]

8.1. Limitations and Standards

8.1.1. The permittee shall install, maintain, and operate the Quentin Keeney Air Tumblers (CD15A), the FisherKlosterman Scrubber (CD25A) and the bag filter dust collector (CD25B) in such a way that the PM and PM-10 

emissions from FP15 do not exceed 0.25 pounds per hour and 1.1 tons per year.

[45CSR14, R14-0015, 5.1.2.]

8.1.2. Refer to permit condition 3.1.23.

8.2. Monitoring Requirements

8.2.1. Reserved.

8.3. Testing Requirements

8.3.1. Reserved.

8.4. Recordkeeping Requirements

8.4.1. Refer to permit conditions 3.4.11. and 3.4.12.

8.5. Reporting Requirements

8.5.1. Reserved.

8.6. Compliance Plan

8.6.1. There is no compliance plan since a responsible official certified compliance with all requirements in the 

renewal application.
Title V Operating Permit R30-00300012-2008 MM01 Page 57 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

9.0. Source-Specific Requirements [Supporting Facilities (Group 009) and emission unit IDs ESDG12, 

ESDG13, ESFW11, ESSHB14, ESSH15, and ESHW15 – Emission Point IDs EP16, EP17, EP18, EP19, 

EP20, EP21 and EP22]

9.1. Limitations and Standards

9.1.1. Emissions of the following pollutants to the atmosphere from the associated emission points shall not exceed the 

following:

 

Caterpillar 3406 (Emission Point EP16 )

Pollutant

Maximum Allowable 

Emission Rate

lb/hr TPY

Particulate Matter 0.58 0.15

Sulfur Dioxide 3.80 0.90

Nitrogen Oxides 9.13 2.30

Carbon Monoxide 4.16 1.04

Volatile Organic Compounds 0.10 0.03

Caterpillar 3456 (Emission Point EP17 )

Pollutant Maximum Allowable 

Emission Rate

lb/hr TPY

Particulate Matter 0.09 0.03

Sulfur Dioxide 3.80 0.90

Nitrogen Oxides 10.96 2.74

Carbon Monoxide 0.62 0.56

Volatile Organic Compounds 0.11 0.03

Cummins NT-855-F1 (Emission Point EP18)

Pollutant

Maximum Allowable 

Emission Rate

lb/hr TPY

Particulate Matter 0.59 0.2

Sulfur Dioxide 0.56 0.1

Nitrogen Oxides 8.5 2.1

Carbon Monoxide 1.8 0.5

Volatile Organic Compounds 0.69 0.2

[45CSR14, R14-0015, 5.1.3.; 45CSR§30-12.7.] (Emission Unit IDs: ESDG12, ESDG13, and ESFW11)
Title V Operating Permit R30-00300012-2008 MM01 Page 58 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

9.1.2. The two Caterpillar 3406 and 3456 (ID. No. ESDG12 and ESDG13) and Cummins NT-855-F1 (ID. No. 

ESFW11) internal combustion engines shall not operate more than 500 hours per year, calculated as the sum 

during a consecutive 12 month period.

[45CSR14, R14-0015, 5.1.4.] (Emission Unit IDs: ESDG12, ESDG13, and ESFW11)

9.1.3. The two Caterpillar 3406 and 3456, and Cummins NT-855-F1 internal combustion engines shall not consume a 

fuel with a sulfur content of greater than 0.5 percent by weight.

[45CSR14, R14-0015, 5.1.5.] (Emission Unit IDs: ESDG12, ESDG13, and ESFW11)

9.1.4. The 14.6 MMBTU/hr boiler (ID. No. ESSHB14), 8.5 MMBTU/hr makeup air handling unit (ID. No. ESSH15), 

7.875 MMBtu/hr Air Handling Unit (ID. No. ESSH16), and five (5) 75 MBTU/hr binder water heaters (ID. No. 

ESHW15) shall only be fired with pipeline quality natural gas.

[45CSR14, R14-0015, 5.1.6.]

9.1.5. Emissions of the following pollutants to the atmosphere at emission point EP21 from the 14.6 MMBTU/hr 

boiler (ID. No. ESSHB14) shall not exceed the following:

Pollutant

Hourly Emission Rate Annual Emission Rate

lb/hr TPY

Particulate Matter 0.05 (1) 0.2

Particulate Matter-10 0.05 (1) 0.2

Nitrogen Oxides 1.5 6.6

Carbon Monoxide 0.29 1.3

Volatile Organic Compounds 0.08 0.3

(1) Compliance with this streamlined limit ensures compliance with 45CSR§2-4.1.b.

[45CSR14, R14-0015, 5.1.7.; 45CSR§2-4.1.b.]

9.1.6. Emissions of the following pollutants to the atmosphere from the 8.5 MMBTU/hr makeup air handling unit (ID 

No. ESSH15) shall not exceed the following:

Pollutant

Hourly Emission Rate Annual Emission Rate

lb/hr TPY

Particulate Matter 0.03 0.1

Particulate Matter-10 0.03 0.1

Nitrogen Oxides 0.85 3.7

Carbon Monoxide 0.17 0.8

Volatile Organic Compounds 0.05 0.2

[45CSR14, R14-0015, 5.1.8.]
Title V Operating Permit R30-00300012-2008 MM01 Page 59 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

9.1.7. No person shall cause, suffer, allow or permit emission of smoke and/or particulate matter into the open air from 

any fuel burning unit which is greater than ten (10) percent opacity based on a six minute block average.

[45CSR§2-3.1.] (Emission Unit IDs: ESSHB14, ESHW15, ESSH15, ESSH16)

9.1.8. No person shall cause, suffer, allow or permit the discharge of sulfur dioxide into the open air from all stacks 

located at one plant in excess of 46.9 lb/hr.

[45CSR§10-3.3.f.] (Emission Unit ID: ESSHB14)

9.1.9. Due to unavoidable malfunction of equipment or inadvertent fuel shortages, emissions exceeding those provided 

for in 45CSR10 may be permitted by the Director for periods not to exceed ten (10) days upon specific 

application to the Director. Such application shall be made within twenty-four (24) hours of the equipment 

malfunction or fuel shortage. In cases of major equipment failure or extended shortages of conforming fuels, 

additional time periods may be granted by the Director provided a corrective program has been submitted by the 

owner or operator and approved by the Director.

[45CSR§10-9.1.]

9.1.10. No owner or operator subject to the provisions of 45CSR10 shall build, erect, install, modify or use any article, 

machine, equipment or process, the use of which purposely conceals an emission which would otherwise 

constitute a violation of an applicable standard. Such concealment includes, but is not limited to, the use of 

gaseous diluents to achieve compliance with a standard that is based on the concentration of a pollutant in the 

gases discharged to the atmosphere.

[45CSR§10-11.1.]

9.2. Monitoring Requirements

9.2.1. Reserved.

9.3. Testing Requirements

9.3.1 Reserved.

9.4. Recordkeeping Requirements

9.4.1. To demonstrate compliance with conditions 9.1.1. and 9.1.2., the permittee shall monitor and record the hours 

of operation of the engines for the generators and fire water pumps. Such records shall be kept on both a 

monthly and 12-month rolling total basis.

[45CSR14, R14-0015, 5.2.3.; 45CSR§30-5.1.c.] (Emission Unit IDs: ESDG12, ESDG13, and ESFW11)

9.4.2. To demonstrate compliance with conditions 9.1.1. and 9.1.3., the permittee shall maintain records of sulfur 

content of the fuel oil received and/or vendors contractual sulfur specifications for the fuel oil.

[45CSR14, R14-0015, 5.4.4.] (Emission Unit IDs: ESDG12, ESDG13, and ESFW11)

9.5. Reporting Requirements

9.5.1. To demonstrate compliance with conditions 9.1.4., 9.1.5., and 9.1.6., the permittee shall certify in the 

semiannual monitoring report (permit condition 3.5.6.) that only pipeline quality natural gas was combusted as 

fuel in the affected emission units.

[45CSR§30-5.1.c.]
Title V Operating Permit R30-00300012-2008 MM01 Page 60 of 60

Guardian Fiberglass, Inc.$ Inwood Plant

West Virginia Department of Environmental Protection • Division of Air Quality

Approved: October 1, 2008 • Revised: April 28, 2009

9.6. Compliance Plan

9.6.1. There is no compliance plan since a responsible official certified compliance with all requirements in the 

renewal application.