ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 2 of 70 

SECTION I SOURCE IDENTIFICATION.............................................................. 2 

1. DESCRIPTION OF FACILITY................................................................................ 4 

2. FACILITY INVENTORY LIST............................................................................... 4 

SECTION II GENERAL CONDITIONS................................................................. 11 

1. DEFINITIONS........................................................................................................ 11 

2 ACRONYMS.......................................................................................................... 11 

3. EFFECTIVE DATE................................................................................................ 12 

4. PERMIT EXPIRATION ......................................................................................... 12 

5. PERMIT RENEWAL.............................................................................................. 12 

6. CONFIDENTIAL INFORMATION ...................................................................... 13 

7. PERMIT ACTIONS................................................................................................ 13 

8. PERMIT AVAILABILITY..................................................................................... 14 

9. REOPENING THE PART 70 PERMIT FOR CAUSE BY THE EPA .................... 14 

10. TRANSFER OF PERMIT....................................................................................... 14 

11. REVISION OF PART 70 PERMITS—GENERAL CONDITIONS....................... 14 

12. SIGNIFICANT PART 70 OPERATING PERMIT MODIFICATIONS ................ 15 

13. MINOR PERMIT MODIFICATIONS ................................................................... 16 

14. ADMINISTRATIVE PART 70 OPERATING PERMIT AMENDMENTS........... 19 

15. OFF-PERMIT CHANGES TO THIS SOURCE ..................................................... 20 

16. ON-PERMIT CHANGES TO SOURCES .............................................................. 22 

17. FEE PAYMENT ..................................................................................................... 24 

18. REQUIREMENTS FOR PERMITS TO CONSTRUCT AND APPROVALS ....... 24 

19. CONSOLIDATION OF PROCEDURES FOR PUBLIC PARTICIPATION......... 25 

20. PROPERTY RIGTS............................................................................................. 25 

21. SEVERABILITY.................................................................................................... 25 

22. INSPECTION AND ENTRY.................................................................................. 26 

23. DUTY TO PROVIDE INFORMATION ................................................................ 26 

24. COMPLIANCE REQUIREMENTS....................................................................... 27 

25. CREDIBLE EVIDENCE ........................................................................................ 27 

26. NEED TO HALT OR REDUCE ACTIVITY NOT A DEFENSE .......................... 27 

27. CIRCUMVENTION............................................................................................... 28 

28. PERMIT SHIELD................................................................................................... 28 

29. ALTERNATE OPERATING SCENARIOS .......................................................... 28 

SECTION III PLANT WIDE CONDITIONS ........................................................... 30 

1. PARTICULATE MATTER FROM CONSTRUCTION AND DEMOLITION..... 30 

2. OPEN BURNING ................................................................................................... 30 

3. AIR POLLUTION EPISODE ................................................................................. 30 

4. REPORT OF EXCESS EMISSIONS AND DEVIATIONS ................................... 30 

5. ACCIDENTAL RELEASE PROVISIONS ............................................................ 31 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 3 of 70 

6. GENERAL TESTING REQUIREMENTS............................................................. 32 

7. EMISSIONS TEST METHODS............................................................................. 32 

8. EMISSIONS CERTIFICATION REPORT ............................................................ 33 

9. COMPLIANCE CERTIFICATION REPORT ....................................................... 34 

10. CERTIFICATION BY RESPONSIBLE OFFICIAL.............................................. 34 

11. SAMPLING AND EMISSIONS TESTING RECORD KEEPING ........................ 35 

12. GENERAL RECORDKEEPING............................................................................ 36 

13. GENERAL CONFORMITY................................................................................... 36 

14. ASBESTOS PROVISIONS .................................................................................... 36 

15. OZONE DEPLETING REGULATIONS ............................................................... 36 

16. ACID RAIN PERMIT............................................................................................. 37 

SECTION IV PLANT SPECIFIC CONDITIONS.................................................... 38 

SECTION V INSIGNIFICANT ACTIVITIES........................................................ 67 

SECTION VI STATE ONLY ENFORCEABLE CONDITIONS............................ 70 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 4 of 70 

SECTION I SOURCE IDENTIFICATION

1. DESCRIPTION OF FACILITY 

ESSROC Cement Corporation, a division of the Italicementi Group, manufactures Portland cement 

and masonry cements at its Buckeystown, Frederick County, Maryland plant. The Frederick 

County site quarries stone for use as aggregate and as raw material for the wet process Portland 

cement plant. Aggregate processing operations are not owned or operated by ESSROC. 

Additional tenant operations occur on the Permittee’s geographical site, which ESSROC neither 

owns nor operates, including an asphalt manufacturing plant and a trucking terminal. The facility 

has been in operation at this location since 1958. 

FACILITY INVENTORY LIST 

1. Fugitive Sources - Not subject to MACT Requirements 

Emissions 

Unit Number 

Emissions Unit Name Emissions Unit Description Date of 

Installation

1A – Quarry 

EU-101 Overburden Removal Soil being removed from the quarry 

surface. (NP101) 

1958 

EU-1AA Drilling and Blasting Quarry mining activity 1958 

EU-102 Raw Material Loading 

(Limestone) 

Limestone from the quarry being 

loaded into haul trucks. (NP102) 

1958 

EU-1BB Raw Material Loading - Sand Loading through quarry haul roads 1958 

EU-103 Quarry Haul Roads Unpaved roads for transporting 

Limestone and sand to the stockpiles 

and the primary crusher - 

overburden being hauled to either 

plant berms or being hauled off site 

by a contractor. (NP103) 

1958 

1B – Raw Material Stockpiles, Unloading, and Handling 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 5 of 70 

Emissions 

Unit Number 

Emissions Unit Name Emissions Unit Description Date of 

Installation

EU-104 Limestone Stockpile A Outdoor limestone storage pile 

located at the primary crusher. 

(NP104) 

1958 

EU-105 Raw Material Unloading 

(Registration # 6-0467, 

formerly 6-0106) 

Limestone being moved from the 

limestone stockpile or directly from 

the quarry and unloaded into the 

primary crusher. (NP105) 

1958 

EU-204 Limestone Stockpile B Outdoor limestone storage pile for 

limestone crushed in the impactor if 

there is no room in the raw material 

storage area. (NP201) 

1958 

 

EU-301 Raw Material Unloading Unloading and storage of calcium, 

alumina, silica, and iron bearing 

materials. (NP301) 

1958 

EU-303-R Raw Material Storage Area 

(Registration # 6-0467, 

formerly 6-0106) 

Storage Area for quarried limestone, 

quarried sand, calcium, alumina, 

silica, and iron bearing materials. 

(NP303) 

1958 

EU-304 Raw Material Blending 

(Registration # 6-0467, 

formerly 6-0106) 

Blending limestone, sand, calcium, 

alumina, silica, and iron bearing 

materials. (NP304) 

1958 

EU-305 Raw Material Feed Bins 

(Registration # 6-0467, 

formerly 6-0106) 

Ten (10) feed bins for blended 

material from the blending area. 

Bins meter the flow of raw materials 

to the feed conveyors. (NP305) 

1958 

EU-309 Alumina Bearing Materials 

Stockpile 

Future outside stockpile for alumina 

bearing material. (NP309) 

1958 

EU-230 Iron Bearing Materials 

Stockpile 

Outside stockpile for iron bearing 

materials to EU301. (NP310) 

1958 

EU-311 Gysum Stockpile Outside stockpile for gypsum to 

EU505. (NP232) 

1958 

EU-3AA Calcium Bearing Material 

Stockpile 

Outside stockpile for calcium 

bearing material to EU301 

1958 

EU-3BB Silica Bearing Material 

Stockpile 

Outside stockpile for silica bearing 

material to EU301 

1958 

1C – Coal Feed System 

EU-302 Coal/Coke Unloading Unloading coal/coke. (NP302) 1958 

EU-303-F Coal/coke Storage Area 

(Registration # 6-0467, 

formerly 6-0106) 

Storage Area for coal/coke. 

(NP303) 

1958 

EU-308 Coal/Coke Stockpile Outside stockpile for coal/coke. 

(NP308) 

1958 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 6 of 70 

Emissions 

Unit Number 

Emissions Unit Name Emissions Unit Description Date of 

Installation

EU-3CC Coal/Coke Storage & 

Conveying 

Consisting of a bin, conveyor, 

bucket elevator, long conveyor, 

conveyors No.1 and 2, feed bin No. 

1 and 2, and weigh belts No.1 and 2 

1958 

EU-3DD Coal Mill NO.1 System Consisting of a coal mill and burner 

pipe 

1958 

EU-3EE Coal Mill NO.2 System Consisting of a coal mill and burner 

pipe 

1958 

1D – Clinker Handling 

EU-501 Clinker Stockpile A Outside stockpile. (NP501) 1958 

EU-502 Clinker Stockpile B Outside stockpile. (NP502) 1958 

1E – Waste Dust Collection and Handling 

EU-405 Recycled Dust Collection 

System (Registration # 6-0468, 

formerly 6-0064) 

Including dust screws 1-10, 2 bucket 

elevators, and east and west CKD 

tanks. (NP401) 

1958 

EU-407 CKD Loading to Truck 

(Registration # 6-0468, 

formerly 6-0064)

Excess cement kiln dust (CKD) 

being conditioned and then loaded 

into haul trucks. (NP402) 

1958 

EU-408 CKD Hauling Transporting conditioned cement 

kiln dust to the CKD disposal areas 

along the unpaved haul road. 

(NP403) 

1958 

EU-409 CKD Disposal Areas Outside disposal areas of 

conditioned CKD. (NP404) 

1958 

EU-415 Outside Storage of CKD Prior to shipment to end users New 

1F – Gypsum Unloading 

EU-505 Gypsum Unloading Natural gypsum and calcium sulfate 

being unloaded. (NP505) 

1958 

1G – Plant Hauling Roads 

EU-701 General - Plant Haul Roads Paved roads and unpaved roads used 

by trucks carrying cement, gypsum, 

coal/coke, calcium, alumina, silica, 

and iron bearing materials to and 

from various locations throughout 

the plant. (NP701) 

1958 

2. Point Sources - Not Subject to MACT requirements

Emissions Unit 

Number 

Emissions Unit Name Emissions Unit Description Date of 

Installation 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 7 of 70 

Emissions Unit 

Number 

Emissions Unit Name Emissions Unit Description Date of 

Installation 

2A – Raw Material Handling 

EU-201 Primary Crusher System 

(Registration # 6-0467, 

formerly 6-0106) 

Consisting of a hopper, feeder, jaw 

crusher, grizzly, and belt #1 

controlled by baghouse CD201. 

(EP201) 

1958 

EU-202 Impactor Building 

(Registration # 6-0467, 

formerly 6-0106)

Consisting the impactor, belts 1, 2, 

3, and 4, and 2 screens controlled by 

baghouse CD202. (EP202) 

1958 

EU-203 Transfer Tower 

(Registration # 6-0467, 

formerly 6-0106)

Transferring from Belt 2 to Belt 3 or 

the aggregate stone plant controlled 

by baghouse CD203. (EP203) 

1958 

2B – Dust Waste Collection and Handling 

EU-406 Dust System Discharge 

(Registration # 6-0468, 

formerly 6-0064) 

Including air slide, bucket elevator 

and rotary drum controlled by 

baghouse CD405. (EP402) 

1958 

modified in 

1985 

EU-410 CKD Transfer to Silos 

(Registration #6-0395) 

Including compressor, F- K pumps, 

and air slide controlled by baghouse 

CD-406. (EP403) 

1996 

EU-411 CKD Silo 31 (Registration 

#9-0147 and 6-0395, 

formerly 6-0028 and 6-0395) 

Controlled by baghouse CD407. 

(EP404) 

1958 

modified in 

1996 

EU-412 Recycled Dust Transfer 

(Registration # 6-0395N) 

Controlled by baghouse CD408. 

(EP405) 

1996 

EU-413 Dust Scoop NO. 1 Controlled by baghouse CD411. 

(EP408) 

New 

EU-414 Dust Scoop NO. 2 Controlled by baghouse CD412. 

(EP409) 

New 

3. Fugitive Emissions – Subject to MACT Requirements 

Emissions Unit 

Number 

Emissions Unit Name Emissions Unit Description Date of 

Installation

3A – Raw Meal Feed 

EU-306 Raw Material Conveyors #1 

(Registration # 6-0467, 

formerly 6-0106) 

Consisting of two (2) belts to move 

raw materials from the feed bins into 

Raw Mill 1. (NP306) 

1958 

EU-307 Raw Material Conveyors #2 

(Registration # 6-0467, 

Consisting of two (2) belts to move 

raw materials from the feed bins into 

1958 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 8 of 70 

Emissions Unit 

Number 

Emissions Unit Name Emissions Unit Description Date of 

Installation

formerly 6-0106) Raw Mill 2. (NP307) 

EU-3FF Raw Mill NO.1 Processing with water 1958 

EU-3GG Raw Mill NO.2 Processing with water 1958 

EU-3HH Kiln Feed System Consisting of 5 blending tanks & 3 

feed tanks 

1958 

3B – Clinker Handling 

EU-503 Clinker Storage Area 

(Registration # 6-0469, 6-

0470 and 6-0471, formerly 6-

0006, 6-0007 and 6-0008)

Clinker being transferred by drag 

conveyor to this covered storage 

area. (NP503) 

1958 

EU-504 Clinker Blending 

(Registration # 6-0469, 6-

0470 and 6-0471, formerly 6-

0006, 6-0007 and 6-0008)

Clinker being transferred here by 

crane and blended before entering 

the finish mill systems. (NP504) 

1958 

3C – Finish Mill Feed Systems 

EU-506 Gypsum Storage Area 

(Registration # 6-0469, 6-

0470 and 6-0471, formerly 6-

0006, 6-0007 and 6-0008)

Covered storage area for storing 

natural gypsum and calcium sulfate 

to be used in the finish mills. 

(NP506)

1958 

EU-507 Finish Mill NO.1 Feed 

System (Registration #6-

0469, formerly 6-0006) 

Consisting of two feed bins and one 

conveyor for feeding combined 

clinker, gypsum, recycled dust, 

quarried limestone, and calcium 

bearing materials. (NP507) 

1958 

EU-508 Finish Mill NO. 2 Feed 

System (Registration # 6-

0470, formerly 6-0007) 

Consisting of two feed bins and one 

conveyor for feeding combined 

clinker, gypsum, recycled dust, 

quarried limestone, and calcium 

bearing materials. (NP508) 

1958 

EU-509 Finish Mill NO. 3 Feed 

System (Registration #6-

0471, formerly 6-0008) 

Feed system consisting of three feed 

bins and two conveyors for feeding 

combined clinker, gypsum, recycled 

dust, quarried limestone, and 

calcium bearing materials. (NP509) 

1958 

4. Kilns– Point Sources - Subject to MACT requirements 

Emissions Unit 

Number 

Emissions Unit Name Emissions Unit Description Date of 

Installation 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 9 of 70 

Emissions Unit 

Number 

Emissions Unit Name Emissions Unit Description Date of 

Installation 

EU-401 Pyroprocessing Area - Kiln 

System #1 (Registration # 6-

0465, formerly 6-0002) 

Coal and distillate fuel oil-fired wet 

rotary kiln #1 equipped with a 

multiclone CD401 and an ESP 

CD403. (EP401) 

1958 

modified in 

1992 for tire 

burning 

EU-402 Pyroprocessing Area –Kiln 

System #2 (Registration # 6-

0466, formerly 6-0003) 

Coal and distillate fuel oil-fired wet 

rotary kiln #2 equipped with a 

multiclone CD401 and an ESP 

CD403. (EP401) 

1958 

modified in 

1992 for tire 

burning 

5. Clinker Coolers and Drag Conveyors–Subject to MACT requirements 

Emissions Unit 

Number 

Emissions Unit Name Emissions Unit Description Date of 

Installation 

EU-403 Clinker Cooler #1 and 

Clinker Drag Conveyors 

(Registration #6-0463, 

formerly 6-0004) 

Venting though baghouse CD 413 

and equipped with a continuous 

opacity monitor (COM) (EP410)

1958 

modified in 

2001 

EU-404 Clinker Cooler #2 and 

Clinker Drag Conveyors 

(Registration # 6-0464, 

formerly 6-0005) 

Venting though baghouse CD 414 

and equipped with a continuous 

opacity monitor (COM). (EP410) 

1958 

modified in 

2001 

6. Finish Mill Systems – Point Sources - Subject to MACT requirements 

Emissions Unit 

Number 

Emissions Unit Name Emissions Unit Description Date of 

Installation 

EU-510 Finish Mill #1 System (Reg. 

# 6-0469, formerly 6-0006); Consisting of the finish mill, 2 air 

slides, 1 cyclone, 1 conveyor, 1 

separator, and 1 elevator controlled 

by baghouse CD501. (EP-501) 

1958 

Baghouse 

modified 

March 1981 

EU-511 Finish Mill #2 System (Reg. 

# 6-0470, formerly 6-0007) Consisting of the finish mill, 2 air 

slides, 1 cyclone, 1 conveyor, 1 

separator, and 1 elevator controlled 

by baghouse CD-502. (EP502) 

1958 

Baghouse 

modified 

March 1981 

EU- 512 Finish Mill #3 System (Reg. 

# 6-0471, formerly 6-0008) Consisting of the finish mill, 2 air 

slides, 1 cyclone, 1 conveyor, 1 

separator, and 1 elevator controlled 

by baghouse CD503. (EP503) 

1958 

Baghouse 

modified 

March 1981 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 10 of 70 

7. Cement Storage, Bagging, and Loadout - Point Sources - Subject to MACT 

requirements

Emissions Unit 

Number 

Emissions Unit Name Emissions Unit Description Date of 

Installation 

EU-513 Cement Cooler System 

(Registration #6-0469, 6-

0470, and 6-0471, formerly 

6-0006, 6-0007, and 6-0008) 

Consisting of 1 screw conveyor, 2 

cement coolers, 2 surge bins, and 5 

air slides controlled by baghouses 

CD501, 502 and 503. (EP501), 

(EP502), and (EP503) 

Prior to 

1970 

EU-601 Cement Storage Silos 

(Registration # 6-0028 & 

0395) 

Finished masonry cement being 

pneumatically pumped from the 

cement cooler system to the cement 

storage silos controlled by baghouse 

CD601. (EP601) 

1958 

Baghouse 

added in 

February 

1996 

EU-602 Bagging System 

(Registration # 6-0395) 

Consisting of a cyclone, 2 bins, 3 

airslides, a screw conveyor, a bucket 

elevator, a vibrating screen, an 

incline packer, a belt conveyor, a 

bag aligning belt, and a bag torture 

and cleaning unit controlled by 

baghouse CD602. (EP602) 

1996 

EU-603 Cement Storage Silos and 

StarBins (Registration # 9-

0147,formerly 6-0028) 

Consisting of 15 cement storage 

silos and 10 star bins controlled by 

baghouse CD603. (EP603) 

1958 

EU-604 Bulk Loading System 

(Registration #9-0147, 

formerly 6-0028) 

Consisting of loading bins 105, 205, 

and 305 and 3 F-K pumps controlled 

by baghouse CD604. (EP604) 

1958 

modified in 

1981 

EU-605 East Side Scale & Loading 

Station (Registration #9-

0147, formerly 6-0028) 

Cement being weighed and loaded 

into cement tanker trucks controlled 

by baghouse CD605. (EP605) 

1958 

modified in 

1981 

EU-606 West Side Scale & Loading 

Station (Registration #9-

0147, formerly 6-0028) 

Cement being weighed and loaded 

into cement tanker trucks controlled 

by baghouse CD606. (EP606) 

1958 

modified in 

1981 

8. Fuel Burning Equipment – Point Sources – Not Subject to MACT and NSPS 

Emissions Unit 

Number 

Emissions Unit Name Emissions Unit Description Date of 

Installation 

EU-702 Fuel burning - Boilers #1 and 

#2 (Registration # 4-0230 

and 4-0231, formerly 4-0008 

and 4-0029) 

7.5 million Btu per hour heat input 

fuel oil-fired Kewanee hot water 

boilers to provide heat and to the 

office and other buildings at the 

plant. (EP702) 

1958 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 11 of 70 

SECTION II GENERAL CONDITIONS

1. DEFINITIONS 

[COMAR 26.11.01.01] and [COMAR 26.11.02.01-26] 

The words or terms in this Part 70 permit shall have the meaning established in 

COMAR 26.11.01 and .02 unless otherwise stated in this permit. 

2. ACRONYMS 

ARMA Air and Radiation Management Administration 

BACT Best Available Control Technology 

Btu British Thermal Unit 

CAAA Clean Air Act (amended) 

CAM Compliance Assured Monitoring 

CEM Continuous Emissions Monitor 

CFR Code of Federal Regulations 

CO Carbon Monoxide 

COMAR Code of Maryland Regulations 

EPA Environmental Protection Agency 

FR Federal Register 

gr grains 

HAP Hazardous Air Pollutant 

MACT Maximum Achievable Control Technology 

MDE Maryland Department of the Environment 

NESHAPS National Emissions Standards for Hazardous Air Pollutants 

NOx Nitrogen Oxides 

NSPS New Source Performance Standards 

NSR New Source Review 

OTR Ozone Transport Region 

PM Particulate Matter 

PM10 Particulate Matter with Nominal Aerodynamic Diameter 

 of 10 micrometers or less 

ppm Parts per Million 

ppb Parts per Billion 

PSD Prevention of Significant Deterioration 

PTC Permit to Construct 

PTO Permit to Operate (State) 

SIC Standard Industrial Classification 

SIP State Implementation Plan 

SO2 Sulfur Dioxide 

TAP Toxic Air Pollutant 

tpy Tons Per Year 

VE Visible Emissions 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 12 of 70 

VOC Volatile Organic Compounds 

3. EFFECTIVE DATE 

The effective date of the conditions in this Part 70 permit is the date of permit 

issuance, unless otherwise stated in the permit. 

4. PERMIT EXPIRATION 

[COMAR 26.11.03.13B(2)]

Upon expiration of this permit, the terms of the permit will automatically continue 

to remain in effect until a new Part 70 permit is issued for this facility provided 

that the Permittee has submitted a timely and complete application and has paid 

applicable fees under COMAR 26.11.02.16. 

Otherwise, upon expiration of this permit the right of the Permittee to operate this 

facility is terminated. 

5. PERMIT RENEWAL 

[COMAR 26.11.03.02B(3)] and [COMAR 26.11.03.02E] 

The Permittee shall submit to the Department a complete application for renewal 

of this Part 70 permit at least 6 months, but not more than 12 months, before the 

expiration of the permit. Upon submitting a completed application, the Permittee 

may continue to operate this facility pending final action by the Department on 

the renewal. 

The Permittee, upon becoming aware that any relevant facts were omitted or 

incorrect information was submitted in the permit application, shall promptly 

submit such supplementary facts or corrected information no later than 10 days 

after becoming aware that this occurred. The Permittee shall also provide 

additional information as necessary to address any requirements that become 

applicable to the facility after the date a complete application was submitted, but 

prior to the release of a draft permit. This information shall be submitted to the 

Department no later than 20 days after a new requirement has been adopted. 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 13 of 70 

6. CONFIDENTIAL INFORMATION 

[COMAR 26.11.02.02G]

In accordance with the provisions of the State Government Article, Sec. 10-611 et 

seq., Annotated Code of Maryland, all information submitted in an application 

shall be considered part of the public record and available for inspection and 

copying, unless the Permittee claims that the information is confidential when it is 

submitted to the Department. At the time of the request for inspection or copying, 

the Department will ascertain the confidentiality of the information. The 

Permittee, when requesting confidentiality, shall identify the information in a 

manner specified by the Department and, when requested by the Department, 

promptly provide specific reasons supporting the claim of confidentiality. 

Information submitted to the Department without a request that the information be 

deemed confidential may be made available to the public. Subject to approval of 

the Department, the Permittee may provide a summary of confidential 

information that is suitable for public review. The contents of this Part 70 permit 

are not subject to confidential treatment. 

7. PERMIT ACTIONS 

[COMAR 26.11.03.06E(3)] and [COMAR 26.11.03.20A] 

This Part 70 permit may be revoked or reopened and revised for cause. The filing 

of an application by the Permittee for a permit revision or renewal; or a 

notification of termination, planned changes or anticipated noncompliance by the 

facility, does not stay a term or condition of this permit. 

The Department shall reopen and revise, or revoke the Permittee's Part 70 permit 

under the following circumstances: 

a. Additional requirements of the Clean Air Act become applicable to this 

facility and the remaining permit term is 3 years or more; 

b. The Department or the EPA determines that this Part 70 permit contains a 

material mistake, or is based on false or inaccurate information supplied 

by or on the behalf of the Permittee; 

c. The Department or EPA determines that this Part 70 permit must be 

revised or revoked to assure compliance with applicable requirements of 

the Clean Air Act; or 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 14 of 70 

d. Additional requirements become applicable to an affected source under 

the Federal Acid Rain Program. 

8. PERMIT AVAILABILITY 

[COMAR 26.11.02.13G]

The Permittee shall maintain this Part 70 permit in the vicinity of the facility for 

which it was issued, unless it is not practical to do so, and make this permit 

immediately available to officials of the Department upon request. 

9. REOPENING THE PART 70 PERMIT FOR CAUSE BY THE EPA 

[COMAR 26.11.03.20B]

The EPA may terminate, modify, or revoke and reissue a permit for cause as 

prescribed in 40 CFR § 70.7(g). 

10. TRANSFER OF PERMIT 

[COMAR 26.11.02.02E]

The Permittee may not transfer this Title V (Part 70) permit except as provided in 

COMAR 26.11.03.15. 

11. REVISION OF PART 70 PERMITS—GENERAL CONDITIONS 

[COMAR 26.11.03.14] and [COMAR 26.11.03.06A(8)]

a. The Permittee shall submit an application to the Department to revise a 

Part 70 permit when required under COMAR 26.11.03.15-.17. 

b. When applying for a revision to a Part 70 permit, the Permittee shall 

comply with the requirements of COMAR 26.11.03.02 and .03 except that 

the application for a revision need only include information listed that is 

related to the proposed change to the source and revision to the permit. 

This information shall be sufficient to evaluate the proposed change and to 

determine whether it will comply with all applicable requirements of the 

Clean Air Act. 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 15 of 70 

c. The Permittee may not change any provision of a compliance plan or 

schedule in a Part 70 permit as an administrative permit amendment or as 

a minor permit modification unless the change has been approved by the 

Department in writing. 

d. A permit revision is not required for a change that is provided for in this 

permit relating to approved economic incentives, marketable permits, 

emissions trading, and other similar programs. 

12. SIGNIFICANT PART 70 OPERATING PERMIT MODIFICATIONS 

[COMAR 26.11.03.17] 

The Permittee may apply to the Department to make a significant modification to 

its Part 70 Permit as provided in COMAR 26.11.03.17 and in accordance with the 

following conditions: 

a. A significant modification is a revision to the federally enforceable 

provisions in the permit that is not an administrative or minor permit 

modification, as defined in COMAR 26.11.03.15 or 26.11.03.16. 

b. This permit does not preclude the Permittee from making changes, 

consistent with the provisions of COMAR 26.11.03.17, that would make 

the permit or particular terms and conditions of the permit irrelevant, such 

as by shutting down or reducing the level of operation of a source or of an 

emissions unit within the source. Air pollution control equipment may not 

be shut down or its level of operation reduced if doing so would violate 

any term of this permit. 

c. Significant permit modifications are subject to all requirements of 

COMAR 26.11.03 as they apply to permit issuance and renewal, including 

the requirements for applications, public participation, and review by 

affected states and EPA, except: 

(1) An application needs only to include information pertaining to the 

proposed change to the source and modification of this permit, 

including a description of the change and modification, the 

emissions resulting from the change and modification, and any 

new applicable requirements of the Clean Air Act that will apply if 

the change occurs; 
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FREDERICK MD 21717 

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(2) Public participation, and review by affected states and EPA, is 

limited to only the application and those federally enforceable 

terms and conditions of the Part 70 permit that are affected by the 

significant permit modification. 

d. As provided in COMAR 26.11.03.15B(5), an administrative permit 

amendment may be used to make a change that would otherwise require a 

significant permit modification if procedures for enhanced preconstruction 

review of the change are followed that satisfy the requirements of 40 CFR 

Sec. 70.7(d)(1)(v). 

e. Before making a change that qualifies as a significant permit modification, 

the Permittee shall obtain all permits to construct and approvals required 

by COMAR 26.11.02. 

f. The Permittee may not make a significant permit modification that results 

in a violation of any applicable requirement of the Clean Air Act. 

g. The permit shield in COMAR 26.11.03.23 applies to a final significant 

permit modification that has been issued by the Department, to the extent 

applicable under COMAR 26.11.03.23. 

13. MINOR PERMIT MODIFICATIONS 

[COMAR 26.11.03.16] 

The Permittee may apply to the Department to make a minor modification to the 

federally enforceable provisions of this Part 70 permit as provided in COMAR 

26.11.03.16 and in accordance with the following conditions: 

a. A minor permit modification is a Part 70 permit revision that: 

(1) Does not result in a violation of any applicable requirement of the 

Clean Air Act; 

(2) Does not significantly revise existing federally enforceable 

monitoring, including test methods, reporting, record keeping, or 

compliance certification requirements except by: 

(a) Adding new requirements, 
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4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

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(b) Eliminating the requirements if they are rendered 

meaningless because the emissions to which the 

requirements apply will no longer occur, or 

(c) Changing from one approved test method for a pollutant 

and source category to another; 

(3) Does not require or modify a: 

(a) Case-by case determination of a federally enforceable 

emissions standard, 

(b) Source specific determination for temporary sources of 

ambient impacts, or 

(c) Visibility or increment analysis; 

(4) Does not seek to establish or modify a federally enforceable permit 

term or condition for which there is no corresponding underlying 

applicable requirement of the Clean Air Act, but that the Permittee 

has assumed to avoid an applicable requirement to which the 

source would otherwise be subject, including: 

(a) A federally enforceable emissions standard applied to the 

source pursuant to COMAR 26.11.02.03 to avoid 

classification as a Title I modification; and 

(b) An alternative emissions standard applied to an emissions 

unit pursuant to regulations promulgated under Sec. 

112(i)(5) of the Clean Air Act; 

(5) Is not a Title I modification; and 

(6) Is not required under COMAR 26.11.03.17 to be processed as a 

significant modification to this Part 70 permit. 

b. Application for a Minor Permit Modification. 

The Permittee may submit to the Department an application for a minor 

permit modification that satisfies the requirements of COMAR 26.11.03 

which includes the following: 
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FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

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(1) A description of the proposed change, the emissions resulting from 

the change, and any new applicable requirements that will apply if 

the change is made; 

(2) The proposed minor permit modification; 

(3) Certification by a responsible official, in accordance with COMAR 

26.11.02.02F that: 

(a) The proposed change meets the criteria for a minor permit 

modification, and 

(b) The Permittee has obtained or applied for all required 

permits to construct required by COMAR 26.11.03.16 with 

respect to the proposed change; 

(4) Completed forms for the Department to use to notify the EPA and 

affected states, as required by COMAR 26.11.03 .07--.12. 

c. Permittee’s Ability to Make Change 

(1) For changes proposed as minor permit modifications to this permit 

that will require the applicant to obtain a permit to construct, the 

permit to construct must be issued prior to the new change. 

(2) During the period of time after the Permittee applies for a minor 

modification but before the Department acts in accordance with 

COMAR 26.11.03.16F(2): 

(a) The Permittee shall comply with applicable requirements of 

the Clean Air Act related to the change and the permit 

terms and conditions described in the application for the 

minor modification. 

(b) The Permittee is not required to comply with the terms and 

conditions in the permit it seeks to modify. If the Permittee 

fails to comply with the terms and conditions in the 

application during this time, the terms and conditions of 

both this permit and the application for modification may 

be enforced against it. 
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4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

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d. The Permittee is subject to enforcement action if it is determined at any 

time that a change made under COMAR 26.11.03.16I is not within the 

scope of this regulation. 

e. Minor permit modification procedures may be used for the use of 

economic incentives, marketable permits, emissions trading, and other 

similar approaches, but only to the extent that the minor permit 

modification procedures provide as part of the Maryland SIP or other 

applicable requirements of the Clean Air Act. 

14. ADMINISTRATIVE PART 70 OPERATING PERMIT AMENDMENTS 

[COMAR 26.11.03.15]

The Permittee may apply to the Department to make an administrative permit 

amendment as provided in COMAR 26.11.03.15 and in accordance with the 

following conditions: 

a. An application for an administrative permit amendment shall: 

(1) Be in writing; 

(2) Include a statement certified by a responsible official that the 

proposed amendment meets the criteria in COMAR 26.11.03.15 

for an administrative permit amendment, and 

(3) Identify those provisions of this part 70 permit for which the 

amendment is requested, including the basis for the request. 

b. An administrative permit amendment: 

(1) Is a correction of a typographical error; 

(2) Identifies a change in the name, address, or phone number of a 

person identified in this permit, or a similar administrative change 

involving the Permittee or other matters which are not directly 

related to the control of air pollution; 

(3) Requires more frequent monitoring or reporting by the Permittee; 

(4) Allows for a change in ownership or operational control of a 

source for which the Department determines that no other revision 
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FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

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to the permit is necessary and is documented as per COMAR 

26.11.03.15B(4); 

(5) Incorporates into this permit the requirements from preconstruction 

review permits or approvals issued by the Department in 

accordance with COMAR 26.11.03.15B(5), but only if it satisfies 

40CFR70.7(d)(1)(v); 

(6) Incorporates any other type of change, as approved by the EPA, 

which is similar to those in COMAR 26.11.03.15B(1)--(4); 

(7) Notwithstanding COMAR 26.11.03.15B(1)--(6) for purposes of 

the acid rain portion of a Part 70 permit, are governed by 

regulations promulgated under Title IV of the Clean Air Act; or 

(8) Incorporates any change to a term or condition specified as 

State-only enforceable, if the Permittee has obtained all necessary 

permits to construct and approvals that apply to the change. 

c. The Permittee may make the change addressed in the application for an 

administrative amendment upon receipt by the Department of the 

application, if all permits to construct or approvals otherwise required by 

COMAR 26.11.02 prior to making the change have first been obtained 

from the Department. 

d. The permit shield in COMAR 26.11.03.23 applies to administrative permit 

amendments made under Sec. B(5) of COMAR 26.11.03.15, but only after 

the Department takes final action to revise the permit. 

e. The Permittee is subject to enforcement action if it is determined at any 

time that a change made under COMAR 26.11.03.15 is not within the 

scope of this regulation. 

15. OFF-PERMIT CHANGES TO THIS SOURCE 

[COMAR 26.11.03.19]

The Permittee may make off-permit changes to this facility as provided in 

COMAR 26.11.03.19 and in accordance with the following conditions: 
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4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

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a. The Permittee may make a change to this permitted facility that is not 

addressed or prohibited by the federally enforceable conditions of this Part 

70 permit without obtaining a Part 70 permit revision if: 

(1) The Permittee has obtained all permits and approvals required by 

COMAR 26.11.02 and .03; 

(2) The change is not subject to any requirements under Title IV of the 

Clean Air Act; 

(3) The change is not a Title I modification; and 

(4) The change does not violate an applicable requirement of the Clean 

Air Act or a federally enforceable term or condition of the permit. 

b. For a change that qualifies under COMAR 26.11.03.19, the Permittee shall 

provide contemporaneous written notice to the Department and the EPA, 

except for a change to an emissions unit or activity that is exempt from the 

Part 70 permit application, as provided in COMAR 26.11.03.04. This 

written notice shall describe the change, including the date it was made, 

any change in emissions, including the pollutants emitted, and any new 

applicable requirements of the Clean Air Act that apply as a result of the 

change. 

c. Upon satisfying the requirements of COMAR 26.11.03.19, the Permittee 

may make the proposed change. 

d. The Permittee shall keep a record describing: 

(1) Changes made at the facility that result in emissions of a regulated 

air pollutant subject to an applicable requirement of the Clean Air 

Act, but not otherwise regulated under this permit; and 

(2) The emissions resulting from those changes. 

e. Changes that qualify under COMAR 26.11.03.19 are not subject to the 

requirements for Part 70 revisions. 

f. The Permittee shall include each off-permit change under COMAR 

26.11.03.19 in the application for renewal of the Part 70 permit. 

g. The permit shield in COMAR 26.11.03.23 does not apply to off-permit 

changes made under COMAR 26.11.03.19. 
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4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

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h. The Permittee is subject to enforcement action if it is determined that an 

off-permit change made under COMAR 26.11.03.19 is not within the 

scope of this regulation. 

16. ON-PERMIT CHANGES TO SOURCES 

[COMAR 26.11.03.18]

The Permittee may make on-permit changes that are allowed under Section 

502(b)(10) of the Clean Air Act as provided in COMAR 26.11.03.18 and in 

accordance with the following conditions: 

a. The Permittee may make a change to this facility without obtaining a 

revision to this Part 70 permit, if: 

(1) The change is not a Title I modification; 

(2) The change does not result in emissions in excess of those 

expressly allowed under the federally enforceable provisions of 

this Part 70 permit for the permitted facility or for an emissions 

unit within the facility, whether expressed as a rate of emissions or 

in terms of total emissions; 

(3) The Permittee has obtained all permits and approvals required by 

COMAR 26.11.02 and .03; 

(4) The change does not violate an applicable requirement of the Clean 

Air Act; 

(5) The change does not violate a federally enforceable permit term or 

condition related to monitoring, including test methods, record 

keeping, reporting, or compliance certification requirements; 

(6) The change does not violate a federally enforceable permit term or 

condition limiting hours of operation, work practices, fuel usage, 

raw material usage, or production levels if the term or condition 

has been established to limit emissions allowable under this 

permit; 
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FREDERICK MD 21717 

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(7) If applicable, the change does not modify a federally enforceable 

provision of a compliance plan or schedule in this Part 70 permit 

unless the Department has approved the change in writing; and 

(8) This permit does not expressly prohibit the change under COMAR 

26.11.03.18. 

b. The Permittee shall notify the Department and the EPA in writing of a 

proposed on-permit change under COMAR 26.11.03.18 not later than 7 

days before the change is made. The written information shall include the 

following information: 

(1) A description of the proposed change; 

(2) The date on which the change is proposed to be made; 

(3) Any change in emissions resulting from the change, including the 

pollutants emitted; 

(4) Any new applicable requirement of the Clean Air Act; and 

(5) Any permit term or condition that would no longer apply. 

c. The responsible official of this facility shall certify in accordance with 

COMAR 26.11.02.02F that the proposed change meets the criteria for the 

use of on-permit changes under COMAR 26.11.03.18. 

d. The Permittee shall attach a copy of each notice required by condition b. 

above to this Part 70 permit. 

e. On-permit changes that qualify under COMAR 26.11.03.18 are not subject 

to the requirements for Part 70 permit revisions. 

f. Upon satisfying the requirements under COMAR 26.11.03.18, the 

Permittee may make the proposed change. 

g. The permit shield in COMAR 26.11.03.23 does not apply to on-permit 

changes under COMAR 26.11.03.18. 

h. The Permittee is subject to enforcement action if it is determined that an 

on-permit change made under COMAR 26.11.03.18 is not within the 

scope of the regulation or violates any requirement of the State air 

pollution control law. 
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FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

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17. FEE PAYMENT 

[COMAR 26.11.02.16A(2) & (5)(b)] 

a. The fee for this Part 70 permit is as prescribed in Regulation .19 of 

COMAR 26.11.02. 

b. The fee is due on and shall be paid on or before each 12-month 

anniversary date of the permit. 

c. Failure to pay the annual permit fee constitutes cause for revocation of the 

permit by the Department. 

18. REQUIREMENTS FOR PERMITS TO CONSTRUCT AND APPROVALS 

[COMAR 26.11.02.09] 

The Permittee may not construct or modify or cause to be constructed or modified 

any of the following sources without first obtaining, and having in current effect, 

the specified permits to construct and approvals: 

a. New Source Review source, as defined in COMAR 26.11.01.01, approval; 

b. Prevention of Significant Deterioration source, as defined in COMAR 

26.11.01.01, approval; 

c. New Source Performance Standard source, as defined in COMAR 

26.11.01.01, permit to construct; 

d. National Emissions Standards for Hazardous Air Pollutants source, as 

defined in COMAR 26.11.01.01, permit to construct; 

e. A stationary source of lead that discharges one ton per year or more of 

lead or lead compounds measured as elemental lead, permit to construct; 

f. All stationary sources of air pollution, including installations and air 

pollution control equipment, except as listed in COMAR 26.11.02.10, 

permit to construct. 
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FREDERICK MD 21717 

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g. In the event of a conflict between the applicability of (a-e) above and an 

exemption listed in COMAR 26.11.02.10, the provision that requires a 

permit applies. 

h. Approval of a PSD or NSR source by the Department does not relieve the 

Permittee obtaining an approval from also obtaining all permits to 

construct required by (c-g) above. 

19. CONSOLIDATION OF PROCEDURES FOR PUBLIC PARTICIPATION 

[COMAR 26.11.02.11C] and [COMAR 26.11.03.01K]

The Permittee may request the Department to authorize special procedures for the 

Permittee to apply simultaneously, to the extent possible, for a permit to construct 

and a revision to this permit. 

These procedures may provide for combined public notices, informational 

meetings, and public hearings for both permits but may not adversely affect the 

rights of a person, including EPA and affected states, to obtain information about 

the application for a permit, to comment on an application, or to challenge a 

permit that is issued. 

These procedures may not alter any existing permit procedures or time frames. 

20. PROPERTY RIGHTS 

[COMAR 26.11.03.06E(4)]

This Part 70 permit does not convey any property rights of any sort, or any 

exclusive privileges. 

21. SEVERABILITY 

[COMAR 26.11.03.06A(5)]

If any portion of this Part 70 permit is challenged, or any term or condition 

deemed unenforceable, the remainder of the requirements of the permit continues 

to be valid. 
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4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

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22. INSPECTION AND ENTRY 

[COMAR 26.11.03.06G(3)]

The Permittee shall allow employees and authorized representatives of the 

Department, the EPA, and the local Health Department, upon presentation of 

credentials or other documents as may be required by law, to: 

a. Enter at a reasonable time without delay and without prior notification the 

Permittee's property where a Part 70 source is located, emissions-related 

activity is conducted, or records required by this permit are kept; 

b. Have access to and make copies of records required by the permit; 

c. Inspect all emissions units within the facility subject to the permit and all 

related monitoring systems, air pollution control equipment, and practices 

or operations regulated or required by the permit; and 

d. Sample or monitor any substances or parameters at or related to the 

emissions units at the facility for the purpose of determining compliance 

with the permit. 

23. DUTY TO PROVIDE INFORMATION 

[COMAR 26.11.03.06E(5)]

The Permittee shall furnish to the Department, within a reasonable time specified 

by the Department, information requested in writing by the Department in order 

to determine whether the Permittee is in compliance with the federally 

enforceable conditions of this Part 70 permit, or whether cause exists for revising 

or revoking the permit. Upon request, the Permittee shall also furnish to the 

Department records required to be kept under the permit. 

For information claimed by the Permittee to be confidential and therefore 

potentially not discloseable to the public, the Department may require the 

Permittee to provide a copy of the records directly to the EPA along with a claim 

of confidentiality. 

The Permittee shall also furnish to the Department, within a reasonable time 

specified by the Department, information or records requested in writing by the 

Department in order to determine if the Permittee is in compliance with the Stateonly enforceable conditions of this permit. 
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FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

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24. COMPLIANCE REQUIREMENTS 

[COMAR 26.11.03.06.E(1)], [COMAR 26.11.03.06A(11)] and 

[COMAR 26.11.02.05] 

The Permittee shall comply with the conditions of this Part 70 permit. 

Noncompliance with the permit constitutes a violation of the Clean Air Act, 

and/or the Environmental Article Title 2 of the Annotated Code of Maryland and 

may subject the Permittee to: 

a. Enforcement action, 

b. Permit revocation or revision, 

c. Denial of the renewal of a Part 70 permit, or 

d. Any combination of these actions. 

The conditions in this Part 70 permit are enforceable by EPA and citizens under 

the Clean Air Act except for the State-only enforceable conditions. 

Under Environmental Article Sec. 2-609, Annotated Code of Maryland, the 

Department may seek immediate injunctive relief against a person who violates 

this permit in such a manner as to cause a threat to human health or the 

environment. 

25. CREDIBLE EVIDENCE 

Nothing in this permit shall be interpreted to preclude the use of credible evidence 

to demonstrate noncompliance with any term of this permit. 

26. NEED TO HALT OR REDUCE ACTIVITY NOT A DEFENSE 

[COMAR 26.11.03.06E(2)]

The need to halt or reduce activity in order to comply with the conditions of this 

permit may not be used as a defense in an enforcement action. 
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FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

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27. CIRCUMVENTION 

[COMAR 26.11.01.06]

The Permittee may not install or use any article, machine, equipment or other 

contrivance, the use of which, without resulting in a reduction in the total weight 

of emissions, conceals or dilutes an emissions which would otherwise constitute a 

violation of any applicable air pollution control regulation. 

28. PERMIT SHIELD 

[COMAR 26.11.03.23]

A permit shield as described in COMAR 26.11.03.23 shall only apply to terms 

and conditions in this Part 70 permit that have been specifically identified as 

covered by the permit shield. Neither this permit nor COMAR 26.11.03.23 alters 

the following: 

a. The emergency order provisions in Sec. 303 of the Clean Air Act, 

including the authority of EPA under that section; 

b. The liability of the Permittee for a violation of an applicable requirement 

of the Clean Air Act before or when this permit is issued or for a violation 

that continues after issuance; 

c. The requirements of the Acid Rain Program, consistent with Sec. 408(a) 

of the Clean Air Act; 

d. The ability of the Department or EPA to obtain information from a source 

pursuant to Maryland law and Sec. 114 of the Clean Air Act; or 

e. The authority of the Department to enforce an applicable requirement of 

the State air pollution control law that is not an applicable requirement of 

the Clean Air Act. 

29. ALTERNATE OPERATING SCENARIOS 

[COMAR 26.11.03.06A(9)] 

For all alternate operating scenarios approved by the Department and contained 

within this permit, the Permittee, while changing from one approved scenario to 
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4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

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another, shall contemporaneously record in a log maintained at the facility each 

scenario under which the emissions unit is operating and the date and time the 

scenario started and ended. 
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4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

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SECTION III PLANT WIDE CONDITIONS 

1. PARTICULATE MATTER FROM CONSTRUCTION AND 

DEMOLITION 

[COMAR 26.11.06.03D]

The Permittee shall not cause or permit any building, its appurtenances, or a road 

to be used, constructed, altered, repaired, or demolished without taking reasonable 

precautions to prevent particulate matter from becoming airborne. 

2. OPEN BURNING 

[COMAR 26.11.07] 

Except as provided in COMAR 26.11.07.04, the Permittee may not cause or 

permit an open fire from June 1 through August 31 of any calendar year. Prior to 

any open burning, the Permittee must request and receive approval from the 

Department. 

3. AIR POLLUTION EPISODE 

[COMAR 26.11.05.04]

When requested by the Department, the Permittee shall prepare in writing standby 

emissions reduction plans, consistent with good industrial practice and safe 

operating procedures, for reducing emissions creating air pollution during periods 

of Alert, Warning, and Emergency of an air pollution episode. 

4. REPORT OF EXCESS EMISSIONS AND DEVIATIONS 

[COMAR 26.11.01.07] and [COMAR 26.11.03.06C(7)]

The Permittee shall comply with the following conditions for occurrences of 

excess emissions and deviations from requirements of this permit including the 

State-only enforceable section: 
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4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

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a. Report any deviation from permit requirements that could endanger 

human health or the environment, by orally notifying the Department 

immediately upon discovery of the deviation; 

b. Promptly report all occurrences of excess emissions that are expected to 

last for one hour or longer by orally notifying the Department of the onset 

and termination of the occurrence; 

c. When requested by the Department the Permittee shall report all 

deviations from permit conditions, including those attributable to 

malfunctions as defined in COMAR 26.11.01.07A, within 5 days of the 

request by submitting a written description of the deviation to the 

Department. The written report must include the cause, dates and times of 

the onset and termination of the deviation, as well as the action planned or 

taken to reduce, eliminate, and prevent the recurrence of the deviation; 

d. The Permittee shall submit to the Department semi-annual monitoring 

reports that confirm that all required monitoring was performed, and that 

provide accounts of all deviations from permit requirements that occurred 

during the reporting periods. Reporting periods shall be January 1 through 

June 30 and July 1 through December 31, and reports shall be submitted 

within 30 days of the end of each reporting period. Each account of 

deviation shall include a description of the deviation, the dates and times 

of onset and termination, identification of the person who observed or 

discovered the deviation, causes and corrective actions taken, and actions 

taken to prevent recurrence. If no deviations from permit conditions 

occurred during a reporting period, the Permittee shall submit a written 

report that so states. 

e. When requested by the Department, the Permittee shall submit a written 

report to the Department within 10 days of receiving the request 

concerning an occurrence of excess emissions. The report shall contain 

the information required in COMAR 26.11.01.07D(2). 

5. ACCIDENTAL RELEASE PROVISIONS 

[COMAR 26.11.03.03B(23)] and [40 CFR Part 68] 

Should the Permittee become subject to 40 CFR Part 68 during the term of this 

permit, the Permittee shall submit risk management plans by the date specified in 

40 CFR Part 68.150 and shall certify compliance with the requirements of 40 CFR 
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FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

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Part 68 as part of the annual compliance certification as required by 40 CFR Part 

70. 

The Permittee shall initiate a permit revision or reopening according to the 

procedures of 40 CFR Part 70.7 to incorporate appropriate permit conditions into 

the Permittee's Part 70 Permit. 

6. GENERAL TESTING REQUIREMENTS 

[COMAR 26.11.01.04] 

The Department may require the Permittee to conduct, or have conducted, testing 

to determine compliance with this Part 70 permit. The Department, at its option, 

may witness or conduct these tests. This testing shall be done at a reasonable 

time, and all information gathered during a testing operation will be provided to 

the Department. 

7. EMISSIONS TEST METHODS 

[COMAR 26.11.01.04]

Compliance with the emissions standards and limitations in this Part 70 permit 

shall be determined by the test methods designated and described below or other 

test methods submitted to and approved by the Department. 

Reference documents of the test methods approved by the Department include the 

following: 

a. 40 CFR Part 60, appendix A 

b. 40 CFR Part 51, appendix M 

c. The Department's Technical Memorandum 91-01 "Test Methods 

and Equipment Specifications for Stationary Sources", (January 

1991), as amended through Supplement 2, (July 1, 1992) 
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FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

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8. EMISSIONS CERTIFICATION REPORT 

[COMAR 26.11.02.19C and D] and 26.11.01.05-1

The Permittee shall certify actual annual emissions of regulated pollutants from 

the facility on a calendar year basis. 

a. The certification shall be on a form obtained from the Department and 

submitted to the Department not later than April 1 of the year following 

the year for which the certification is required; 

 

b. The individual making the certification shall certify that the information is 

accurate to the individual's best knowledge. The individual shall be: 

(1) Familiar with each source for which the certification form is 

submitted, and 

(2) Responsible for the accuracy of the emissions information; 

c. The Permittee shall maintain records necessary to support the emissions 

certification including the following information if applicable: 

(1) The total amount of actual emissions of each regulated pollutant 

and the total of all regulated pollutants; 

(2) An explanation of the methods used to quantify the emissions and 

the operating schedules and production data that were used to 

determine emissions, including significant assumptions made; 

(3) Amounts, types, and analyses of all fuels used; 

(4) Emissions data from continuous emissions monitors that are 

required by this permit, including monitor calibration and 

malfunction information; 

(5) Identification, description, and use records of all air pollution 

control equipment and compliance monitoring equipment 

including: 

(a) Significant maintenance performed, 

(b) Malfunctions and downtime, and 

(c) Episodes of reduced efficiency of all the equipment; 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 34 of 70 

(6) Limitations on source operation or any work practice standards 

that significantly affect emissions; and 

(7) Other relevant information as required by the Department. 

 

9. COMPLIANCE CERTIFICATION REPORT 

[COMAR 26.11.03.06G(6) and (7)]

The Permittee shall submit to the Department and EPA Region III a report 

certifying compliance with each term of this Part 70 permit including each 

applicable standard, emissions limitation, and work practice for the previous 

calendar year by April 1 of each year. 

a. The compliance certification shall include: 

(1) The identification of each term or condition of this permit which is 

the basis of the certification; 

(2) The compliance status; 

(3) Whether the compliance was continuous or intermittent; 

(4) The methods used for determining the compliance of the source, 

currently and over the reporting period; and 

(5) Any other information required to be reported to the Department 

that is necessary to determine the compliance status of the 

Permittee with this permit. 

b. The Permittee shall submit the compliance certification reports to the 

Department and EPA simultaneously. 

10. CERTIFICATION BY RESPONSIBLE OFFICIAL 

[COMAR 26.11.02.02F]

All application forms, reports, and compliance certifications submitted pursuant 

to this permit shall be certified by a responsible official as to truth, accuracy, and 

completeness. The Permittee shall expeditiously notify the Department of an 

appointment of a new responsible official. 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 35 of 70 

The certification shall be in the following form: 

 "I certify under penalty of law that this document and all attachments were 

prepared under my direction or supervision in accordance with a system designed 

to assure that qualified personnel properly gather and evaluate the information 

submitted. Based on my inquiry of the person or persons who manage the system, 

or those persons directly responsible for gathering the information, the 

information submitted is, to the best of my knowledge and belief, true, accurate, 

and complete. I am aware that there are significant penalties for submitting false 

information, including the possibility of fine and imprisonment for knowing 

violations." 

11. SAMPLING AND EMISSIONS TESTING RECORD KEEPING 

[COMAR 26.11.03.06C(5)]

The Permittee shall gather and retain the following information when sampling 

and testing for compliance demonstrations: 

a. The location as specified in this permit, and the date and time that samples 

and measurements are taken; 

b. All pertinent operating conditions existing at the time that samples and 

measurements are taken; 

c. The date that each analysis of a sample or emissions test is performed and 

the name of the person taking the sample or performing the emissions test; 

d. The identity of the Permittee, individual, or other entity that performed the 

analysis; 

e. The analytical techniques and methods used; and 

f. The results of each analysis. 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 36 of 70 

12. GENERAL RECORD KEEPING 

[COMAR 26.11.03.06(C)(6)]

The Permittee shall retain records of all monitoring data and support information 

that supports the compliance certification for a period of five years from the date 

that the monitoring sample, measurement, application, report or emissions test 

was completed or submitted to the Department. 

These records and support information shall include: 

a. All calibration and maintenance records; 

 

b. All original data collected from continuous monitoring instrumentation; 

c. Records which support the annual emissions certification; and 

d. Copies of all reports required by this permit. 

13. GENERAL CONFORMITY 

[COMAR 26.11.26.09]

The Permittee shall comply with the general conformity requirements of 40 CFR 

Part 93, Subpart B and COMAR 26.11.26.09. 

14. ASBESTOS PROVISIONS 

[40 CFR Part 61, Subpart M]

The Permittee shall comply with 40 CFR Part 61, Subpart M when conducting 

any renovation or demolition activities at the facility. 

15. OZONE DEPLETING REGULATIONS 

[40 CFR Part 82, Subpart F] 

The Permittee shall comply with the standards for recycling and emissions 

reduction pursuant to 40 CFR Part 82, Subpart F, except as provided for MVACs 

in subpart B: 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 37 of 70 

a. Persons opening appliances for maintenance, service, repair, or disposal 

must comply with the prohibitions and required practices pursuant to 

§§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 §82.158. 

c. Persons performing maintenance, service, repairs or disposal of appliances 

must be certified by an approved technician certification program pursuant 

to §82.161. 

d. Persons performing maintenance, service, repairs or disposal of appliances 

must certify with the Administrator pursuant to §82.162. 

e. Persons disposing of small appliances, MVACS, and MVAC-like 

appliances as defined in §82.152, must comply with record keeping 

requirements pursuant to §82.166 . 

f. Persons owning commercial or industrial process refrigeration equipment 

must comply with the leak repair requirements pursuant to §82.156. 

g. Owners/operators of appliances normally containing 50 or more pounds of 

refrigerant must keep records of refrigerant purchased and added to such 

appliances pursuant to §82.166. 

16. ACID RAIN PERMIT- Not Applicable 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 38 of 70 

SECTION IV PLANT SPECIFIC CONDITIONS

This section is comprised of tables containing the emissions standards, emissions 

limitations and work practices applicable to each emissions unit located at this facility. 

The Permittee shall comply with all applicable emissions standards, emissions limitations 

and work practices contained herein. 

These tables also list testing, monitoring, record keeping and reporting requirements 

specific to each emissions unit. In addition to the requirements listed in Section IV, the 

Permittee is subject to the general testing, monitoring, record keeping and reporting 

requirements contained in Section III, Plant Wide Conditions of this permit. 

1. Fugitive Sources (Not subject to MACT Requirements) - 

1 Emissions Unit Number(s)

1A. Quarry 

a. EU-101 Quarry overburden removal 

b. EU-1AA Drilling and Blasting 

c. EU-102 Quarry Raw Material (Limestone) Loading 

 d. EU-1BB Raw Material Loading - Sand 

c. EU-103 Quarry Haul Roads 

1B. Raw Material Stockpiles, Unloading, Storage, and Handling 

a. EU-104 Limestone Stockpile A 

b. EU-105 Raw Material Unloading 

c. EU-204 Limestone Stockpile B 

d. EU-301 Raw Material Unloading 

e. EU-303-R Raw Material Storage Area 

f. EU-304 Raw Material Blending 

g. EU-305 Raw Material Feed Bins 

h. EU-309 Alumina Bearing Materials Stockpile 

i. EU-230 Iron Bearing Materials Stockpile 

j. EU-311 Gysum Stockpile 

k. EU-3AA Calcium Bearing Material Stockpile 

l. EU-3BB Silica Bearing Material Stockpile 

1C. Coal Feed System 

a. EU-302 Coal/Coke Unloading 

b. EU-303-F Fuel Storage Area 

c. EU-308 Coal/Coke Stockpile 

d. EU-3CC Coal/Coke Storage & Conveying 

e. EU-3DD Coal Mill No.1 System 

f. EU-3EE Coal Mill No.2 System 

1D. Clinker Handling 

a. EU-501 Clinker Stockpile A 

b. EU-502 Clinker Stockpile B 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

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1E. Waste dust collection and handling 

a. EU-405 Recycled Dust Collection System 

b. EU-407 CKD Loading to Truck 

c. EU-408 CKD Hauling 

d. EU-409 Recycled Dust Handling 

e. EU-415 Outside Storage of CKD 

1F. Gypsum Unloading 

 EU-505 Gypsum Unloading 

1G. Plant Hauling Roads 

 EU-701 Plant Haul Roads 

 Applicable Standards/Limits:

(1) COMAR 26.11.06.03C(1) - Particulate matter Emissions. A person may not 

cause or permit emissions from an unconfined source without taking 

reasonable precautions to prevent particulate matter from becoming airborne. 

(2) COMAR 26.11.06.03D - Particulate matter from Materials Handling and 

Construction. A person may not cause or permit any material to be handled, 

transported, or stored, or a building, its appurtenances, or a road to be used, 

constructed, altered, repaired, or demolished without taking reasonable 

precautions to prevent particulate matter from becoming airborne. 

 Testing Requirements:

None. 

 Monitoring Requirements:

(1) The Permittee shall comply with and update as needed the best management 

plan that describes the procedures and methods that will be used to take 

reasonable precautions. The management plan may be included in the written 

operation and maintenance plan required under the Portland Cement MACT. 

[COMAR 26.11.03.06C]

(2) The Permittee shall perform a walk through inspection of the facility to 

observe each emissions unit to verify that reasonable precautions are being 

implemented and to determine whether the reasonable precautions need to be 

revised. The inspection shall be conducted at a minimum of once per month at 

times when the effectiveness of the reasonable precautions can be assessed. 

[COMAR 26.11.03.06C] 

 Record Keeping Requirements:

The Permittee shall maintain the best management plan and records of the dates and 

inspection results for at least five (5) years and make them available to the 

Department upon request. At a minimum, the most recent two years of data shall be 

retained on site. The remaining three years of data may be retained off site. The 

files may be maintained on microfilm, on a computer, on floppy disks, on magnetic 

tape, or on microfiche. 

[COMAR 26.11.03.06C]

Reporting Requirements:

None 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 40 of 70 

A permit shield shall cover the applicable requirements of the Clean Air Act that are 

listed in the table above. 

2. Point Sources (Not subject to MACT Requirements) 

2 Emissions Unit Number(s)

2A. Raw Material Handling 

a. EU-201 Primary Crusher 

b. EU-202 Impactor Building 

c. EU-203 Transfer Tower 

2B. Dust Waste Collection and Handling 

 a. EU-406 Dust System Discharge 

b. EU-410 CKD Transfer to Silos 

c. EU-411 CKD Silo 31 

d. EU-412 Recycled DustTransfer 

e. EU-413 Dust Scoop #1 

f. EU-414 Dust Scoop #2 

 Applicable Standards/Limits:

A. Visible Emissions 

COMAR 26.11.06.02C(1) - A person may not cause or permit the discharge of 

emissions from any installation or building, other than water in an uncombined form, 

which is greater than 20 percent opacity, except as provided under COMAR 

26.11.06.02A(2). 

B. Particulate Matter Emissions 

(1) For the installations constructed before January 17, 1972: 

 COMAR 26.11.06.03B(1)(b)(i) which prohibits the discharge of 

particulate matter emissions from confined sources into the atmosphere in 

excess of the limit determined from the Table 1 or determined by the 

following equation when the process rate exceeds 60,000 pounds per hour: 

E (lb/hr) = 55.0 x P(0.11 power) – 40, where P is the process weight in tons 

per hour. 

For those processes in which the process weight per hour exceeds 60,000 

pounds (27,200 kilograms), the maximum allowable weight of particulate 

matter discharged per hour may exceed that calculated by the equation 

shown above provided that the concentration of particulate matter in the 

gases discharged to the atmosphere is less than 0.05 gr/scfd (115 

mg/dscm). 

[COMAR 26.11.06.03B(1)(b)(ii)] 

(2) For the installations constructed on or after January 17, 1972: 

COMAR 26.11.06.03B(1)(b)(ii) - A person may not cause or permit 

particulate matter to be discharged from any installation in excess of 0.05 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 41 of 70 

gr/SCFD (114.5 mg/dscm). 

 Testing Requirements:

None 

 Monitoring Requirements:

A. The Permittee shall perform a monthly six-minute EPA Reference Method 9 test 

of the exhaust stack of each emissions unit. The test must be conducted while 

the emissions unit is in operation. 

The Permittee shall perform the following, if emissions are greater than 20 

percent opacity: 

(1) Inspect emission control system and process operations; 

(2) Perform all necessary adjustments and/or repairs to the emission unit within 

48 hours, so that visible emissions are reduced to below 20 percent opacity; 

(3) Document, in writing, the results of the inspections, adjustments and/or 

repairs; and 

(4) After 48 hours, if the required adjustments and/or repairs had not reduced 

the visible emissions below 20 percent opacity, perform Method 9 

observations once daily for 12 minutes until corrective actions have reduced 

emissions to less than 20 percent. 

[COMAR 26.11.03.06C] 

B1. The exhaust gas from each emissions unit shall vent through a dust collector 

designed to meet the particulate matter emissions limits before discharging into 

the atmosphere. 

[COMAR 26.11.03.06C]

B2. The Permittee shall comply with and update the preventative maintenance plan for 

each baghouse that describes the maintenance activity and time schedule for 

completing each activity. The preventative maintenance plan may be included in a 

written operation and maintenance plan required under the Portland Cement 

MACT. The Permittee shall perform maintenance activities within the timeframes 

established in the plan and shall maintain a log with records of the dates 

maintenance was performed. 

[COMAR 26.11.03.06C]

 Record Keeping Requirements:

A. The Permittee shall maintain records of the results of the monthly inspections for 

at least five (5) years and make them available to the Department upon request 

At a minimum, the most recent two years of data shall be retained on site. The 

remaining three years of data may be retained off site. The files may be 

maintained on microfilm, on a computer, on floppy disks, on magnetic tape, or 

on microfiche. 

[COMAR 26.11.03.06C] 

B. The log of inspection and maintenance records shall be kept for at least five (5) 

years and shall be made available to the Department upon request. At a 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 42 of 70 

minimum, the most recent two years of data shall be retained on site. The 

remaining three years of data may be retained off site. The files may be 

maintained on microfilm, on a computer, on floppy disks, on magnetic tape, or 

on microfiche. 

[COMAR 26.11.03.06C]

Reporting Requirements:

None 

A permit shield shall cover the applicable requirements of the Clean Air Act that are 

listed in the table above. 

3. Fugitive Sources (Subject to MACT Requirements) 

3 Emissions Unit Number(s)

3A. Raw Meal Feed 

 a. EU-306 Raw Material Conveyors #1 

b. EU-307 Raw Material Conveyors #2 

c. EU-3FF Raw Mill No.1 

d. EU-3GG Raw Mill No.2 

e. EU-3HH Kiln Feed System 

3B. Clinker Handling 

a. EU-503 Clinker Storage Area 

b. EU-504 Clinker Blending 

3C. Finish mill Feed System 

 a. EU-506 Gypsum Storage Area 

 b. EU-507 Finish Mill NO.1 Feed System 

 c. EU-508 Finish Mill NO.2 Feed System 

d. EU-509 Finish Mill NO.3 Feed System 

 Applicable Standards/Limits:

A. Visible Emissions 

40 CFR §63.1348 which limits opacity to 10% or less for each new or existing 

raw material, clinker, or finished product storage bin; conveying system transfer 

point; bagging system; and bulk loading or unloading system.

B. Particulate Matter Emissions 

(1) COMAR 26.11.06.03C(1) - Particulate Matter from Unconfined Sources 

- A person may not cause or permit emissions from an unconfined sources 

without taking reasonable precautions to prevent particulate matter from 

becoming airborne. 

(2) COMAR.26.11.06.03D - Particulate Matter from Materials Handling and 

Construction. A person may not cause or permit any material to be 

handled, transported, or stored, or a building, its appurtenances, or a road 

to be used, constructed, altered, repaired, or demolished without taking 

reasonable precautions to prevent particulate matter from becoming 

airborne. 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 43 of 70 

 Testing Requirements

A. and B. None 

 Monitoring Requirements

A1. The Permittee shall conduct a monthly 1-minute visible emissions test of each 

emissions unit in accordance with Method 22 of Appendix A to part 60. The test 

must be conducted while the emissions unit is in operation. If no visible 

emissions are observed in six consecutive monthly tests for any emissions unit, 

the Permittee may decrease the frequency of testing from monthly to semiannually for that emissions unit. If visible emissions are observed during any 

semi-annual test, the Permittee must resume testing of that emissions unit on a 

monthly basis and maintain that schedule until no visible emissions are observed 

in six consecutive monthly tests. If no visible emissions are observed during the 

semi-annual test for any emissions unit, the Permittee may decrease the frequency 

of testing from semi-annually to annually for that emissions unit. If visible 

emissions are observed during any annual test, the Permittee must resume testing 

of that emissions unit on a monthly basis and maintain that schedule until no 

visible emissions are observed in six consecutive monthly tests. 

If visible emissions are observed during any Method 22 test, the Permittee shall 

initiate the corrective actions specified in the written operations and maintenance 

plan and conduct the follow-up Method 22 test until the problem is resolved. 

[40 CFR §63.1350(a)(4)(i)-(iv)] 

A2. The Permittee shall comply with and update as needed the written operations and 

maintenance plan which includes the following information: 

(1) Procedures for proper operation and maintenance of the affected source and 

air pollution control devices in order to meet the emissions limits and 

operating limits of §§63.1348; and 

(2) Procedures to be used to periodically monitor affected sources. 

[40 CFR §63.1350(a) and (b)] 

B. None 

 Record Keeping Requirements

A. The Permittee shall maintain all records for at least five years following the date 

of each occurrence, measurement, maintenance, corrective action, report, or 

record. At a minimum, the most recent two years of data shall be retained on site. 

The remaining three years of data may be retained off site. The files may be 

maintained on microfilm, on a computer, on floppy disks, on magnetic tape, or on 

microfiche. 

[40 CFR §63.1355] 

B. None 

Reporting Requirements

A. The Permittee shall submit a summary report semiannually, which contains all 

failures to comply with any provision of the operation and maintenance plan 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 44 of 70 

developed in accordance with §63.1350(a). 

[40 CFR §63.1354(b)(9)(v)] 

B. None 

A permit shield shall cover the applicable requirements of the Clean Air Act that are 

listed in the table above. 

4. Kilns - Point Sources (Subject to MACT Requirements) 

4 Emissions Unit Number(s)

 a. EU-401 Pyroprocessing Area - Kiln System #1 

b. EU-402 Pyroprocessing Area –Kiln System #2 

Two (2) wet rotary kilns, each controlled by a multiclone and an electrostatic 

precipitator (ESP), installed in 1958. 

 Applicable Standards/Limits:

A. Visible Emissions 

(1) COMAR 26.11.06.02C (1) - A person may not cause or permit the 

discharge of emissions from any installation or building, other than water 

in an uncombined form, which is greater than 20 percent opacity, except as 

provided under COMAR 26.11.06.02A(2). 

(2) 40 CFR §63.1343(b)(2) which limits opacity from the kiln to 20% or less. 

B. Particulate Matter Emissions 

(1) COMAR 26.11.06.03B(1)(b)(i) which prohibits the discharge of 

particulate matter emissions from confined sources into the atmosphere in 

excess of the limit determined from the Table 1 or determined by the 

following equation when the process rate exceeds 60,000 pounds per hour: 

E (lb/hr) = 55.0 x P(0.11 power) – 40, where P is the process weight in tons 

per hour. 

For those processes in which the process weight per hour exceeds 60,000 

pounds (27,200 kilograms), the maximum allowable weight of particulate 

matter discharged per hour may exceed that calculated by the equation 

shown in (1) provided that the concentration of particulate matter in the 

gases discharged to the atmosphere is less than 0.05 gr/scfd (115 mg/dscm). 

[COMAR 26.11.06.03B(1)(b)(ii)]

(2) 40 CFR §63.1343(b)(1) which limits particulate matter emissions from the 

kiln and raw mill to 0.15 kg per MG (0.3 lb per ton) of feed (dry basis). 

C. Dioxins/Furans (D/F) 

40 CFR §63.1343(b)(3) which prohibits D/F in excess of 

(1) 0.2 ng per dscm (8.7 X 10 –11 gr per dscf)(TEQ) corrected to seven percent 

oxygen; or 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 45 of 70 

(2) 0.4 ng per dscm (1.7 x 10-10 gr dscf)(TEQ) corrected to seven percent 

oxygen, when the temperature at the inlet to the particulate matter air 

pollution control device is 204°C (400° F) or less. 

D. NOx Emissions 

(1) COMAR 26.11.09.08H(2)(a) which limits NOx emissions to 1,000 pounds 

per hour on a 30-day rolling average.

(2) COMAR 26.11.29.15C(1) which requires a person who owns or operates a 

cement manufacturing facility to either meet the applicable emissions 

standards in §C(2) of this regulation or implement one of the following 

control measures: 

(a) Install low NOx burners on each kiln; or 

(b) Modify each kiln to implement mid-kiln firing 

Note: The kiln has implemented mid-kiln firing. Compliance with the facility’s 

NOx emissions limit will be determined according to the NOx emissions 

collected on the main kiln stack.

E. SOx Emissions 

(1) COMAR 26.11.06.05B(1) which limits the sulfur dioxide concentration in 

the exhaust gases not to exceed 2000 parts per million by volume corrected 

to 7 percent oxygen. 

(2) COMAR 26.11.06.05B(2) which limits the content of sulfuric acid, sulfur 

trioxide, or any combination not to exceed 70 milligrams reported as 

sulfuric acid per cubic meter of gas corrected to 7 percent oxygen. 

F. VOC Emissions

COMAR 26.11.06.06B(2)(a) which limits Volatile Organic Compounds (VOC) 

emissions to 200 pounds per day, unless the discharge is reduced by 85 percent 

or more overall. 

 Testing Requirements

A, D, E, and F None 

B. The Permittee shall conduct a particulate matter emissions test at the interval 

stipulated in Subpart LLL (once every 5 years) using Method 5 or Method 17 of 

40 CFR Part 60, Appendix A. Each performance test shall consist of three 

separate runs under the conditions that exist when the affected source is 

operating under representative performance conditions in accordance with 40 

CFR Part 63, Subpart LLL. Each run shall be conducted for at least one hour, 

and the minimum sample volume shall be 0.85 dscm (30dscf). The average of 

the three runs shall be used to determine compliance. 

[40 CFR §63.1349(b)(1) and (c)] 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 46 of 70 

C. The Permittee shall conduct a dioxins/furans emissions test at the interval 

stipulated in Subpart LLL (once every 2 1/2 years) using Method 23 of 40 CFR 

Part 60, Appendix A. 

(1) Each performance test shall consist of three separate runs; each run shall be 

conducted under the conditions that exist when the affected source is 

operating under representative performance conditions in accordance with 

40 CFR Part 63, Subpart LLL. The duration of each run shall be at least 

three hours and the sample volume for each run shall be at least 2.5 dscm 

(90 dscf). The concentration shall be determined for each run and the 

arithmetic average of the concentrations measured for the three runs shall 

be calculated and used to determine compliance. 

(2) The temperature at the inlet to the kiln or in-line kiln/raw mill PMCD must 

be continuously recorded during the period of the Method 23 test, and the 

continuous temperature record(s) must be included in the performance test 

report. 

(3) One-minute average temperatures must be calculated for each minute of 

each run of the test. 

(4) The run average temperature must be calculated for each run, and the 

average of the run average temperatures must be determined and included 

in the performance test report and will determine the applicable 

temperature limit in accordance with §63.1344(b). 

[40 CFR §63.1349(b)(3) and (d)]

 Monitoring Requirements

The Permittee shall obtain permission from the Department before burning, or 

receiving on the property, raw materials or fuels other than limestone, sand, clay mill 

scale, coal, petroleum coke, No.2 fuel oil, Grinell foundry sand, used tires, used oil, or 

waste combustible fluids. 

[Permit to Operate 10-00013, issued May 10, 1999] 

A1. The Permittee shall install, calibrate, maintain, and continuously operate a 

continuous opacity monitor (COM) located at the outlet of the PM control device 

to continuously monitor the opacity. The COM shall be installed, maintained, 

calibrated, and operated as required by 40 CFR Part 63, Subpart A (general 

provision) and 40 CFR Part 63, Appendix B, Performance Specification 1. 

[40 CFR §63.1350 (c)(1)] and [COMAR 26.11.01.11B(2)(d)] 

A2. The COM shall automatically reduce all data to a 6-minute block average 

calculated from 36 or more equally spaced data points. 

[COMAR 26.11.01.11A(3) and .10G(2)(a)] 

A and B 

The Permittee shall keep all air pollution control equipment, including the electrostatic 

precipitators, properly maintained and in good working order so as to assure full and 

continuous compliance with all applicable regulations. 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 47 of 70 

[Permit to Construct 10-6-0002M]

A, B, and C 

The Permittee shall comply with and update the written operations and maintenance 

plan, which includes the following information: 

(1) Procedures for proper operation and maintenance of the affected source and 

air pollution control devices in order to meet the emissions limits and 

operating limits of §63.1344; 

(2) Corrective actions to be taken when required by §63.1350(e); and 

(3) Procedures to be used to during an inspection of the components of the 

combustion system of each kiln and each in-line kiln located at the facility 

at least once per year. 

[40 CFR §63.1350(a) and (b)] 

B. The exhaust gas from emissions unit shall vent through a dust collector designed 

to meet the particulate matter emissions limit before discharging into the 

atmosphere: 

[COMAR 26.11.03.06C] 

C1. The Permittee shall conduct an inspection of the components of the combustion 

system of each kiln at least once a year. 

[40 CFR §63.1350(i)] 

C2. The Permittee shall calibrate, maintain, and continuously operate a continuous 

monitor to record the temperature of the exhaust gases from the kiln at the inlet 

to or upstream of the PM control devices. 

(1) The recorder response range must include zero and 1.5 times either of the 

average temperature established according to the requirements in 

§63.1349(b)(3)(iv). 

(2) The reference method must be a National Institute of Standards and 

Technology calibrated reference thermocouple-potentiometer system or 

alternate reference, subject to approval by the Administrator. 

(3) The three-hour rolling average temperature shall be calculated as the 

average of 180 successive one-minute average temperatures. 

(4) The period of time when one-minute averages are not available shall be 

ignored when calculating three-hour rolling averages. When one-minute 

averages become available, the first one-minute average is added to the 

previous 179 values to calculate the three-hour rolling average. 

(5) The calibration of all thermocouples and other temperature sensors shall be 

verified at least once every three months. 

[40 CFR §63.1350(f)] 

D and E. 

(1). The Permittee shall use a continuous emissions monitoring system, (CEM) 
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FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

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to monitor NOx, carbon monoxide (CO), and SO2 emissions from the main 

exhaust stack. The Permittee shall install, operate, maintain, and calibrate 

the CEM in accordance with the Performance Specifications under 40 CFR 

Part 60, Appendix B and the Quality Assurance Procedures under 40 CFR 

Part 60, Appendix F and MDE’s Technical Memorandum TM-90-01. 

[COMAR 26.11.09.08H(1) and Administrative Order by Consent of 

September 13, 2001] 

(2). The Permittee shall operate the CEM to record not less than four equally 

spaced data points per hour and to automatically reduce data in terms of 

averaging times consistent with applicable emission standards. 

[COMAR 26.11.01.11D(3)] 

E. SO2 Emissions 

As an operational limit, the Permittee shall not burn in the kilns coal with a sulfur 

content that exceeds 3.5% by weight or distillate fuel oil with a sulfur content that 

exceeds 0.3 % by weight to support mass balance calculations of sulfur dioxide 

emissions from the kilns unless the Permittee applies for and obtains an approval or 

permit from the Department. The Permittee may burn whole tires and used oil or 

waste combustible fluid (as defined by COMAR 26.11.09.10B & C) as supplemental 

fuels in the kilns. 

[Permit to Construct 10-6-0002 M] 

F. VOC Emissions 

(1) The temperature between the preheating and calcining zones shall be at least 

1500° F when tires are burned. 

[Permit to Construct 10-6-0002 M] 

(2) The oxygen concentration in the flue gas leaving each kiln shall not fall below 

1.0 percent when tires are being burned. 

[Permit to Construct 10-6-0002 M]

(3) The Permittee shall store all tires, except those being fed to the kiln, in trailers. 

[Permit to Construct 10-6-0002 M] 

 Record keeping Requirements

A, B, and C 

The Permittee shall maintain all records collected from both testing and monitoring 

requirements for at least five years following the date of each occurrence, 

measurement, maintenance, corrective action, report or record. At a minimum, the 

most recent two years of data shall be retained on site; the remaining three years of 

data may be retained offsite. The files may be maintained on microfilm, on a 

computer, on floppy disks, on magnetic tape, or on microfiche. 

[40 CFR §63.1355] 

D and E. 

(1) The Permittee shall use the emissions data from the Facility’s SO2, CO, and NOx
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4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

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CEMs in all future permit applications submitted to the Department for the 

purpose of establishing the Facility’s baseline emissions or other emissions 

related purpose. 

[Administrative Order by Consent of September 13, 2001] 

(2) The Permittee shall maintain all records collected from both testing and 

monitoring requirements for at least five years following the date of each 

occurrence, measurement, maintenance, corrective action, report, or record. At a 

minimum, the most recent two years of data shall be retained on site. The 

remaining three years of data may be retained off site. The files may be 

maintained on microfilm, on a computer, on floppy disks, on magnetic tape, or 

on microfiche. 

[COMAR 26.11.03.06C] 

F. VOC Emissions 

(1) The Permittee shall record hourly the temperature between the preheating and 

calcining zones of the kilns. 

(2) The Permittee shall record the oxygen concentration and temperature in the flue 

gas leaving the kilns. 

(3) The Permittee shall keep the following records on site for at least 5 years and 

shall make them available to the Department upon request: 

(a) the kiln rotation rate, raw materials feed rate, and cement clinker 

production rate; 

(b) hourly fuel usage rate of each type of fuel used, the tire usage rate, 

and whole scrap tire charging rate; and 

(c) the oxygen concentration and temperature in the flue gas leaving the 

kiln. 

(d) Temperature recordings between the preheating and calcining zones of 

the kilns. 

[Permit to Construct 10-6-0002M] 

 Reporting Requirements

For five years from the effective date (September 13, 2001) of this order, the Permittee 

shall submit a copy the Facility’s annual emissions inventory report to EPA within 

twenty (20) days of submitting such report to MDE annually. Documents, including 

plans, reports, modifications and any other correspondence to be submitted pursuant to 

this Order shall be sent by certified or overnight mail to Christopher Pilla at the 

following address: 

Christopher Pilla (3AP12) 

Associate Director, Office of Air Enforcement 

And Permit Review, Air Protection Division 

U.S. EPA Region III 

Philadelphia, PA 19103 

[Administrative Order by Consent of September 13, 2001] 
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4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

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A. If the total continuous monitoring system downtime for any CEM or any 

continuous monitoring system (CMS) for the reporting period is ten percent or 

greater of the total operating time for the reporting period, the Permittee shall 

submit an excess emissions and continuous monitoring system performance 

report along with the summary report. 

[40 CFR §63.1354(b)(10)] 

A and C. 

The Company shall submit to the Department semiannually a Summary Report - 

Gaseous and Opacity Excess Emissions and Continuous Monitoring System 

(CMS) Performance on January 31st and July 31st of each year. The Summary 

Report shall include the following items: 

(1) Company name and address; 

(2) Identification of the hazardous pollutant; 

(3) A brief description of the process; 

(4) The emissions limit; 

(5) Name, title and signature of responsible party; 

(6) Date of report; 

(7) All exceedances of the three hour average inlet temperature limit to the 

Particulate matter control device; 

(8) All failures to calibrate thermocouples; 

(9) The results of any burner inspections; 

(10) All failures to comply with the operations and maintenance plan; 

(11) The date of the latest CMS certification or audit; 

(12) The total operating time of the affected source during the reporting period; 

and 

(13) A CMS performance summary, including: 

(a) the total CMS downtime during the operating period (in minutes); 

(b) the total CMS downtime expressed as a percent of the total operating 

time; and 

(c) a breakdown of total CMS downtime into periods due to: 

i. Monitoring equipment malfunctions, 

ii. Non monitoring equipment malfunctions, 

iii. Quality assurance/quality control calibrations, 

iv. Other known causes, and 

v. Other unknown causes. 

[40 CFR §63.1354b(9) and §63.10(e)(3)(vi)] 

A, D, and E 

The Permittee shall submit a quarterly summary report to the Department not later 

than 30 days following each calendar quarter. The report shall be in a format approved 
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4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

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by the Department, and shall include the following: 

(1) The cause, time periods, and magnitude of all emissions which exceed the 

applicable emissions standards; 

(2) The source downtime including the time and date of the beginning and end 

of each downtime period and whether the source downtime was planned or 

unplanned; 

(3) The time periods and cause of all CEM downtime including records of any 

repairs, adjustments, or maintenance that may affect the validity of 

emissions data; 

(4) Quarterly totals of excess emissions, installation downtime, and CEM 

downtime during the calendar quarter; 

(5) Quarterly quality assurance activities; 

(6) Daily calibration activities that include reference values, actual values, 

absolute or percent of span differences, and drift status; and 

(7) Other information required by the Department that is determined to be 

necessary to evaluate the data, to ensure that compliance is achieved, or to 

determine the applicability of this regulation. 

[Permit to Construct 10-6-0002M, COMAR 26.11.01.11A(3) and COMAR 

26.11.01.10G(2)(d)] 

B and C. 

(1) The Permittee shall submit the results of performance tests before the close 

of business on the 60th day following the completion of the performance 

test. 

[40 CFR §63.1354(b)(1)] & [40 CFR §63.10(d)(2)] 

(2) At least 30 days prior to each stack emissions testing, the Permittee shall 

submit to the Department a stack test protocol for review and approval. 

[COMAR 26.11.03.06C] 

D. NOx Emissions 

The Permittee shall submit emissions data to the Department for each control 

period by November 30 beginning with the 2002 control period. 

[COMAR 26.11.29.15B(1)(c)] 

E. SO2 Emissions 

The Permittee shall file with the Department a quarterly report of excess 

emissions of sulfur dioxide, including the date, time, duration, and cause of each 

occurrence. 

[COMAR 26.11.01.07C and Permit to Construct 10-6-0002M] 

F. None 

A permit shield shall cover the applicable requirements of the Clean Air Act that are 

listed in the table above. 
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4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

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5. Clinker Coolers and Drag Conveyors - (Subject to MACT Requirements) 

5 Emissions Unit Number(s)

a. EU-403 Clinker Cooler #1 and Clinker Drag Conveyors 

b. EU-404 Clinker Cooler #2 and Clinker Drag Conveyors 

Two Clinker Coolers each controlled by a baghouse and venting through a single stack 

equipped with a continuous opacity monitor (COM) 

 Applicable Standards/Limits:

A. Visible Emissions 

(1) COMAR 26.11.06.02C(1) - A person may not cause or permit the 

discharge of emissions from any installation or building, other than water 

in an uncombined form, which is greater than 20 percent opacity, except 

as provided under COMAR 26.11.06.02A(2). 

(2) 40 CFR §63.1345a(2), which limits opacity from the clinker cooler to 10 

percent or less. 

B. Particulate Matter Emissions 

(1) COMAR 26.11.06.03B(1)(b) which prohibits the discharge of particulate 

matter emissions from confined sources into the atmosphere in excess of 

the limit determined from the Table 1 or determined by the following 

equation when the process rate exceeds 60,000 pounds per hour: 

E (lb/hr) = 55.0 x P(0.11 power) – 40, where P is the process weight in 

tons per hour. 

For those processes in which the process weight per hour exceeds 60,000 

pounds (27,200 kilograms), the maximum allowable weight of particulate 

matter discharged per hour may exceed that calculated by the equation 

shown above provided that the concentration of particulate matter in the 

gases discharged to the atmosphere is less than 0.05 gr/scfd (115 

mg/dscm). 

[COMAR 26.11.06.03B(1)(b)(ii)]

(2) 40 CFR §63.1345a(1) which limits particulate matter from the clinker 

cooler to 0.050 kg per Mg (0.10 lb per ton) of feed (dry basis) to the kiln.

 Testing Requirements

A. None 

B. The Permittee shall conduct a particulate matter emissions test at the interval 

stipulated in Subpart LLL using Method 5 or Method 17 of 40 CFR Part 60, 

Appendix A. Each performance test shall consist of three separate runs under the 

conditions that exist when the affected source is operating under representative 

performance conditions in accordance with 40 CFR Part 63, Subpart LLL. Each 

run shall be conducted for at least one hour, and the minimum sample volume 
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4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

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shall be 0.85 dscm (30 dscf). The average of the three runs shall be used to 

determine compliance.

[40 CFR §63.1349(b) and (c)] 

 Monitoring Requirements

A1. The Permittee shall install, calibrate, maintain, and continuously operate a 

continuous opacity monitor (COM) located at the outlet of the PM control device 

to continuously monitor the opacity. The COM shall be installed, maintained, 

calibrated, and operated as required by 40 CFR Part 63, Subpart A (general 

provision) and 40 CFR Part 60, Appendix B, Performance Specification 1. 

[40 CFR §63.1350(d)(1)] 

A2. The COM shall automatically reduce all data to 6-minute block averages 

calculated from 36 or more equally spaced data points. 

[COMAR 26.11.01.10G(2)(a)] 

B. The exhaust gases from each Clinker Cooler and each Drag Conveyor shall vent 

through a dust collector designed to meet the particulate matter emissions limit 

before discharging into the atmosphere.

[COMAR 26.11.03.06C] 

A and B 

The Permittee shall comply with and update as needed the written operations and 

maintenance plan, which includes the following information: 

(1) Procedures for proper operation and maintenance of the affected source and 

air pollution control devices in order to meet the emissions limits and 

operating limits of §63.1345; 

(2) Corrective actions to be taken when required by §63.1350(e); and 

(3) Procedures to be used to periodically monitor affected sources subject to 

opacity standards under§63.1345. 

[40 CFR §63.1350(a) and (b)] 

 Record Keeping Requirements

A and B 

The Permittee shall maintain all records for at least five years following the date of each 

occurrence, measurement, maintenance, corrective action, report or record. At a 

minimum, the most recent two years of data shall be retained on site; the remaining 

three years of data may be retained offsite. The files may be maintained on microfilm, 

on a computer, on floppy disks, on magnetic tape, or no microfiche. 

[40 CFR §63.1355] 

 Reporting Requirements

A1. If the total continuous monitoring system downtime for any CEM or any 

continuous monitoring system (CMS) for the reporting period is ten percent or 

greater of the total operating time of the reporting period, the Permittee shall 

submit an excess emissions and continuous monitoring system performance 

report along with the summary report. 
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4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

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[40 CFR §63.1354(b)(10)] 

A2. The Permittee shall submit a quarterly summary report to the Department not 

later than 30 days following each calendar quarter. The report shall be in a 

format approved by the Department, and shall include the following: 

(1) The cause, time periods, and magnitude of all emissions which exceed the 

applicable emissions standards; 

(2) The source downtime including the time and date of the beginning and end 

of each downtime period and whether the source downtime was planned or 

unplanned; 

(3) The time periods and cause of all CEM downtime including records of any 

repairs, adjustments, or maintenance that may affect the validity of 

emissions data; 

(4) Quarterly totals of excess emissions, installation downtime, and CEM 

downtime during the calendar quarter; 

(5) Quarterly quality assurance activities; 

(6) Daily calibration activities that include reference values, actual values, 

absolute or percent of span differences, and drift status; and 

(7) Other information required by the Department that is determined to be 

necessary to evaluate the data, to ensure that compliance is achieved, or to 

determine the applicability of this regulation. 

[COMAR 26.11.01.11A(3) and COMAR26.11.01.10G(2)(d)] 

B1. The Permittee shall submit the results of performance tests before the close of 

business on the 60th day following the completion of the performance test. 

[40 CFR §63.1354(b)(1)] & [40 CFR §63.10(d)(2)] 

B2. At least 30 days prior to each stack emissions testing, the Permittee shall submit 

to the Department a stack test protocol for review and approval. 

[COMAR 26.11.03.06C] 

A and B 

The Permittee shall submit a summary report semiannually, which contains all failures 

to comply with any provision of the operation and maintenance plan developed in 

accordance with §63.1350(a). 

[40 CFR §63.1354(b)(9)(v)] 

A permit shield shall cover the applicable requirements of the Clean Air Act that are 

listed in the table above. 

6. Finish Mills - Point Sources (Subject to MACT Requirements) 

6 Emissions Unit Number(s)

a. EU-510 Finish Mill #1 System 

b. EU-511 Finish Mill #2 System 

c. EU-512 Finish Mill #3 System 
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FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 55 of 70 

 Applicable Standards/Limits:

A. Visible Emissions 

(1) COMAR 26.11.06.02C(1) - A person may not cause or permit the 

discharge of emissions from any installation or building, other than water in 

an uncombined form, which is greater than 20 percent opacity, except as 

provided under COMAR 26.11.06.02A(2). 

(2) 40 CFR §63.1347 which limits opacity from the finish mills to 10 percent 

or less. 

B. Particulate Matter Emissions 

COMAR 26.11.06.03B(1)(b)(i) which prohibits the discharge of particulate 

matter emissions from confined sources into the atmosphere in excess of the limit 

determined from the Table 1 or determined by the following equation when the 

process rate exceeds 60,000 pounds per hour: 

E (lb/hr) = 55.0 x P(0.11 power) – 40, where P is the process weight in tons per 

hour. 

For those processes in which the process weight per hour exceeds 60,000 pounds 

(27,200 kilograms), the maximum allowable weight of particulate matter 

discharged per hour may exceed that calculated by the equation shown above 

provided that the concentration of particulate matter in the gases discharged to the 

atmosphere is less than 0.05 gr/scfd (115 mg/dscm). 

[COMAR 26.11.06.03B(1)(b)(ii)] 

 Testing Requirements

A. None 

B. None 

 Monitoring Requirements

A1. The Permittee shall monitor opacity by conducting daily visual emissions 

observations of the mill sweep and air separator PMCDs of these affected 

sources, in accordance with the procedures of Method 22 of appendix A of part 

60 of this chapter. The Method 22 test shall be conducted while the source is 

operating under representative performance conditions in accordance with 40 

CFR 63.7(e). The duration of the Method 22 test shall be six minutes. If visible 

emissions are observed during any Method 22 visible emissions test, the 

Permittee shall: 

(1) Initiate, within one-hour, the corrective actions specified in the site specific 

written operations and an maintenance plan required under 40 CFR 

§63.1350(a); 

(2) Within 24 hours of the end of the Method 22 test in which visible 

emissions were observed, conduct a follow-up Method 22 test of each stack 

from which visible emissions were observed during the previous Method 

22 test; and 
ESSROC CEMENT CORPORATION 

FREDERICK CEMENT PLANT 

4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 56 of 70 

(3) If visible emissions are observed during the follow-up Method 22 test, 

conduct a visual opacity test of each stack from which visible emissions 

were observed in accordance with Method 9 of Appendix A of 40 CFR Part 

60. The Method 9 test shall be conducted within one-hour of the end of the 

follow-up Method 22 test and the duration of the Method 9 test shall be at 

least thirty minutes. 

[40 CFR §63.1350(e)] 

A2. The Permittee shall comply with and update as needed the written operations and 

maintenance plan. The plan shall include the following information: 

(1) Procedures for proper operation and maintenance of the affected source and 

air pollution control devices in order to meet the emissions limits and 

operating limits of §63.1347; and 

(2) Procedures to be used to periodically monitor affected sources. 

[40 CFR §63.1350(a) and (b)] 

B1. The exhaust gases from each emissions unit shall vent through a dust collector 

designed to meet the particulate matter emissions limit before discharging to the 

atmosphere. 

[COMAR 26.11.03.06C] 

B2. The Permittee shall comply with and update the preventative maintenance plan for 

each baghouse that describes the maintenance activity and time schedule for 

completing each activity. The preventative maintenance plan may be included in a 

written operation and maintenance plan required under the Portland Cement 

MACT. The Permittee shall perform maintenance activities within the timeframes 

established in the plan and shall maintain a log with records of the dates 

maintenance was performed. 

[COMAR 26.11.03.06C]

 Record Keeping Requirements

A. The Permittee shall maintain all records for at least five years following the date 

of each occurrence, measurement, maintenance, corrective action, report or 

record. At a minimum, the most recent two years of data shall be retained on 

site; the remaining three years of data may be retained offsite. The files may be 

maintained on microfilm, on a computer, on floppy disks, on magnetic tape, or 

no microfiche. 

[40 CFR §63.1355] 

B. The log of inspection and maintenance records shall be kept for at least five (5) 

years and shall be made available to the Department upon request. At a 

minimum, the most recent two years of data shall be retained on site. The 

remaining three years of data may be retained off site. The files may be 

maintained on microfilm, on a computer, on floppy disks, on magnetic tape, or on 

microfiche. 
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4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

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[COMAR 26.11.03.06C] 

 Reporting Requirements

A1. The Permittee shall submit a summary of excess emissions in a semiannual 

monitoring report. (See also Condition 4, Report of Excess Emissions and 

Deviations on page 30). The report shall be delivered or postmarked by the 30th

day following the end of each calendar half. 

[40 CFR §63.10(e)(3)(v)] 

A2. The Permittee shall submit a summary report semiannually, which contains all 

failures to comply with any provision of the operation and maintenance plan 

developed in accordance with §63.1350(a). 

[40 CFR §63.1354(b)(9)(v)] 

B. None included in

A permit shield shall cover the applicable requirements of the Clean Air Act that are 

listed in the table above. 

7. Cement Storage, Bagging, and Loadout - Point Sources (Subject to MACT 

Requirements)

7 Emissions Unit Number(s)

a. EU-513 Cement Cooler System 

b. EU-601 Cement Storage Silos 

c. EU-602 Bagging System 

d. EU-603 Cement Storage Silos and StarBins 

e. EU-604 Bulk Loading System 

f. EU-605 East Side Scale & Loading Station 

g. EU-606 West Side Scale & Loading Station 

 Applicable Standards/Limits:

A. Visible Emissions

(1) COMAR 26.11.06.02C(1) - A person may not cause or permit the 

discharge of emissions from any installation or building, other than water in 

an uncombined form, which is greater than 20 percent opacity, except as 

provided under COMAR 26.11.06.02A(2). 

(2) 40 CFR §63.1348 which limits opacity to 10% or less for each new or 

existing raw material, clinker, or finished product storage bin; conveying 

system transfer point; bagging system; and bulk loading or unloading 

system. 

B. Particulate Matter Emissions 

(1) Permit to Construct 10-6-0395M - The particulate matter emissions from 

the masonry production and packaging operation shall be less than 

0.021gr/SCFD (48.1 mg/dscm) unless the Permittee can demonstrate to the 

Department that the net PM10 emissions increase resulting from the masonry 

production and packaging operation is less than 15 tons per year. 

(2) COMAR 26.11.06.03B(1)(b) which prohibits the discharge of particulate 
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4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 58 of 70 

matter emissions from confined sources into the atmosphere in excess of the 

limit determined from the Table 1 or determined by the following equation 

when the process rate exceeds 60,000 pounds per hour: 

E (lb/hr) = 55.0 x P(0.11 power) – 40, where P is the process weight in tons 

per hour. 

For those processes in which the process weight per hour exceeds 60,000 

pounds (27,200 kilograms), the maximum allowable weight of particulate 

matter discharged per hour may exceed that calculated by the equation 

shown above provided that the concentration of particulate matter in the 

gases discharged to the atmosphere is less than 0.05 gr/scfd (115 mg/dscm). 

[COMAR 26.11.06.03B(1)(b)(ii)] 

 Testing Requirements

None 

 Monitoring Requirements

A1. The Permittee shall conduct a monthly 1-minute visible emissions test of the 

exhaust stack of each affected source in accordance with Method 22 of Appendix 

A to Part 60. The test must be conducted while the affected source is in 

operation. If no visible emissions are observed in six consecutive monthly tests 

for the exhaust stack of any affected source, the Permittee may decrease the 

frequency of testing from monthly to semi-annually for the exhaust stack of that 

affected source. If visible emissions are observed during any semi-annual test, 

the Permittee shall resume testing of the exhaust stack of that affected source on 

a monthly basis and maintain that schedule until no visible emissions are 

observed in six consecutive monthly tests. If no visible emissions are observed 

during the semi-annual test for the exhaust stack of any affected source, the 

Permittee may decrease the frequency of testing from semi-annually to annually 

for the exhaust stack of that affected source. If visible emissions are observed 

during any annual test, the Permittee shall resume testing of the exhaust stack of 

that affected source on a monthly basis until no visible emissions are observed in 

six consecutive monthly tests. 

If visible emissions are observed on any stack during any Method 22 test, the 

Permittee shall initiate, within one hour, the corrective actions specified in the 

written operations and maintenance plan. Within 24 hours at the end of the 

Method 22 test, the Permittee shall conduct a follow-up Method 22 test of each 

stack from which visible emissions were observed during the previous Method 22 

test. If visible emissions are still observed, conduct a visual opacity test in 

accordance with Method 9 of Appendix A of 40 CFR Part 60. The Method 9 test 

shall be conducted within one-hour of the end of the follow-up Method 22 test 

and the duration of the Method 9 test shall be at least six minutes. 

[40 CFR §63.1350(a)(4)(i)-(iv)] 

A2. The Permittee shall comply with and update as needed the written operations and 

maintenance plan which includes the following information: 
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4120 BUCKEYSTOWN PIKE, 

FREDERICK MD 21717 

PART 70 OPERATING PERMIT NO. 24-21-00013 

Page 59 of 70 

(1) Procedures for proper operation and maintenance of the affected source and 

air pollution control devices in order to meet the emissions limits and 

operating limits of §§63.1348; and 

(2) Procedures to be used to periodically monitor affected sources. 

[40 CFR §63.1350(a) and (b)] 

B1. The total operating hour for the bagging operation for any 12 consecutive months 

shall be less than 7,000 hours unless the Permittee can demonstrate to the 

Department that the net PM10 emissions increase resulting from the masonry 

production and packaging operation is less than 15 tons per year. 

[Permit to Construct 10-6-0395M] 

B2. The exhaust gases from each emissions unit shall vent through a dust collector to 

meet the particulate matter emissions limit before discharging into the 

atmosphere. 

[Permit to Construct 10-6-0395M and COMAR 26.11.03.06C] 

 Record Keeping Requirements

A. The Permittee shall maintain all records for at least five years following the date 

of each occurrence, measurement, maintenance, corrective action, report or 

record. At a minimum, the most recent two years of data shall be retained on 

site; the remaining three years of data may be retained offsite. The files may be 

maintained on microfilm, on a computer, on floppy disks, on magnetic tape, or on 

microfiche. 

[40 CFR §63.1355] 

A and B 

The pressure drop across the baghouse used to control the bagging operation shall 

be recorded at least once per operating day. 

[Permit to Construct 10-6-0395M] 

B. The Permittee shall maintain the log of inspection and maintenance 

records for at least five (5) years and make it available to the Department 

upon request. At a minimum, the most recent two years of data shall be 

retained on site. The remaining three years of data may be retained off 

site. The files may be maintained on microfilm, on a computer, on floppy 

disks, on magnetic tape, or on microfiche. 

[COMAR 26.11.03.06C] 

 Reporting Requirements

A. The Permittee shall submit a summary report semiannually, which contains all 

failures to comply with any provision of the operation and maintenance plan 

developed in accordance with §63.1350(a). 

[40 CFR §63.1354(b)(9)(v)] 

B. None be included in
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A permit shield shall cover the applicable requirements of the Clean Air Act that are 

listed in the table above. 

8. Fuel Burning Equipment - (Not Subject to MACT or NSPS Requirements)

8 Emissions Unit Number(s) 

EU-702 Two 7.5 million Btu per hour heat input fuel oil-fired Kewanee hot water 

boilers 

Applicable Standards/Limits:

A. Visible Emissions

COMAR 26.11.09.05A(1) which prohibits visible emissions from any fuel 

burning equipment, other than water in an uncombined form, which is greater 

than 20 percent opacity. This requirement does not apply to emissions during 

load changing, soot blowing, start-up, or adjustments or occasional cleaning of 

control equipment if: 

(1) The visible emissions are not greater than 40 percent opacity; and 

(2) The visible emissions do not occur for more than 6 consecutive minutes in 

any sixty-minute period. 

B. Sulfur Dioxide Emissions 

COMAR 26.11.09.07A(1)(c), which limits the sulfur content of distillate fuel oil 

to 0.3 percent by weight.

 Testing Requirements

None

 Monitoring Requirements

A1. The Permittee shall properly operate and maintain the boilers in a manner to 

prevent visible emissions. 

A2. The Permittee shall visually inspect the exhaust stack of each boiler using 40 CFR 

60 Appendix A, Reference Method 22 (one-minute) observation monthly and 

record the results of each observation. If the emissions in the exhaust gases are 

visible, the facility will perform the following: 

(1) Inspect all process and/or control equipment that may affect visible 

emissions; 

(2) Perform all necessary adjustments and/or repairs to processes and/or control 

equipment within 72 hours, so that visible emissions in the exhaust gases are 

eliminated; 

(3) Document in writing the results of the inspections, adjustments and/or 

repairs to the boiler; and 

(4) After 72 hours, if the required adjustments and/or repairs had not 

eliminated the visible emissions, perform Method 9 observations once 

daily for a 6-minute period until corrective actions have confirmed that 

visible emissions are below 20% opacity. 

[COMAR 26.11.03.06C] 
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B. The Permittee shall obtain a certification from the fuel supplier that the fuel oil is 

in compliance with the sulfur in fuel limitation. 

[COMAR 26.11.03.06C] 

A and B. 

The Permittee shall only burn No. 2 fuel oil in each boiler unless the Permittee 

applies for and receives an approval or permit from the Department to burn 

alternate fuels. 

[COMAR 26.11.02.09A] 

 Record Keeping Requirements

A1. The Permittee shall maintain an operation manual and preventive maintenance 

plan. 

[COMAR 26.11.03.06C]

A2. The Permittee shall maintain the log of the visible emissions observations and 

the inspection and maintenance that relates to combustion performance for at 

least five (5) years and make it available to the Department upon request. At a 

minimum, the most recent two years of data shall be retained on site. The 

remaining three years of data may be retained off site. The files may be 

maintained on microfilm, on a computer, on floppy disks, on magnetic tape, or 

on microfiche. 

[COMAR 26.11.03.06C]

B. The Permittee shall maintain annual fuel supplier certifications stating that the 

fuel is in compliance with this regulation for at least 5 years. 

[COMAR 26.11.03.06C] 

 Reporting Requirements

A. The Permittee shall report incidents of visible emissions in accordance with permit 

condition 4, Section III “Report of Excess Emissions and Deviations” 

[COMAR 26.11.03.06C] 

B. The Permittee shall report the annual fuel supplier certifications to the 

Department upon request. 

[COMAR 26.11.09.07C] 

A permit shield shall cover the applicable requirements of the Clean Air Act that are 

listed in the table above. 

MACT Requirements

(Applies to MACT Sources Only)

Applicable Standards and Regulations
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The Permittee shall comply with the following sections of the General Provisions. The 

provisions, which do not apply, have been deleted. 

Table 1 to Subpart LLL of Part 63—Applicability of General Provisions 

General Provisions 

40 CFR Citation 

Requirement Comment 

63.1(a)(1) through (4) Applicability 

63.1(a)(6) through (a)(8) Applicability 

63.1(a)(10) through (14) Applicability 

63.1(b)(2) and (3) Initial Applicability Determination 

63.1(c)(1) Applicability after Standard 

 Established 

63.1(c)(2) Permit Requirements Area Sources Must Obtain 

Title V 

Permits 

63.1(c)(4) and (5) Extensions, Notifications 

63.1(e) Applicability of Permit Program 

63.2 Definitions Additional Definitions in 

§63.1341 

63.3(a) through (c) Units and Abbreviations 

63.4(a)(1) through (a)(3) Prohibited Activities 

63.4(a)(5) Compliance Date 

63.4(b) and (c) Circumvention, Severability 

63.5(a)(1) and (2) Construction/Reconstruction 

63.5(b)(1) Compliance Dates 

63.5(b)(3) through (6) Construction Approval. 

Applicability 

63.5(d)(1) through (4) Approval of Construction/ 

Reconstruction 

63.5(e) Approval of Construction/ 

Reconstruction 

63.5(f)(1) and (2) Approval of Construction/ 

Reconstruction 

63.6(a) Compliance for Standards and 

Maintenance 

63.6(b)(1) through (5) Compliance Dates 

63.6(b)(7) Compliance Dates 

63.6(c)(1) and (2) Compliance Dates 

63.6(c)(5) Compliance Dates 

63.6(e)(1) and (e)(2) Operation & Maintenance 

63.6(e)(3) Start-up, Shut-Down and 

 Malfunction 
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63.6(f)(1) through (3) Compliance with Emissions 

Standards 

63.6(g)(1) through (g)(3) Alternative Standard 

63.6(h)(1) and (2) Opacity/VE Standards 

63.6(h)(4) and (h)(5)(i) Opacity/VE Standards 

63.6(h)(6) Opacity/VE Standards 

63.6(h)(7) Opacity/VE Standards 

63.6(i)(1) through (i)(14) Extension of Compliance 

63.6(i)(16) Extension of Compliance 

63.6(j) Exemption from Compliance 

63.7(a)(1) through (a)(3) Performance Testing 

Requirements 

§63.1349 has specific 

requirements 

63.7(b) Notification 

63.7(c) Quality Assurance/Test Plan 

63.7(d) Testing Facilities 

63.7(e)(1) through (4) Conduct of Tests 

63.7(f) Alternative Test Method 

63.7(g) Data Analysis 

63.7(h) Waiver of Tests 

63.8(a)(1) Monitoring Requirements 

63.9(a) Notification Requirements 

63.9(b)(1) through (5) Initial Notifications 

63.9(c) Request for Compliance Extension 

63.9(d) New Source Notification for 

Special Compliance Requirements 

63.9(e) Notification of Performance Test 

63.9(f) Notification of VE/Opacity Test Notification not required for

VE/opacity test under 

§63.1350(e) and (j) 

63.9(h)(1) through (h)(3) Notification of Compliance Status 

63.9(h)(5) and (h)(6) Notification of Compliance Status 

63.9(i) Adjustment of Deadlines 

63.9(j) Change in Previous Information 

63.10(a) Record keeping/Reporting 

63.10(b) General Requirements 

63.10(d)(1) General Reporting Requirements 

63.10(d)(2) Performance Test Results 

63.10(d)(3) Opacity or VE Observations 

63.10(d)(4) Progress Reports 

63.10(d)(5) Start-up, Shutdown, Malfunction 

Reports 

63.10(e)(1) and (e)(2) Additional CMS Reports 
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63.10(e)(3) Excess Emissions and CMS 

Performance Reports 

Exceedances are defined in 

subpart LLL 

63.10(f) Waiver for Record Keeping/ 

Reporting 

63.12(a)-(c) State Authority and Delegations 

63.13(a)-(c) State/Regional Addresses 

63.14(a) and (b) Incorporation by Reference 

63.15(a) and (b) Availability of Information 

9. Facility Wide- MACT Sources Only 

9 Emissions Unit Number(s)

Facility Wide- MACT Sources Only 

Applicable Standards/Limits:

40 CFR §63.1350 which requires that the Permittee comply with the 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. 

40 CFR §63.6(e)(3)(viii) which states that the Permittee may periodically revise the startup, shutdown, and malfunction plan for the affected source as necessary to satisfy the 

requirements of this Part or to reflect changes in equipment or procedures at the affected 

source. Unless the permitting authority provides otherwise, the Permittee may make 

such revisions to the start-up, shutdown, and malfunction plan without prior approval by 

the Administrator or the permitting authority. However, each revision to a start-up, 

shutdown, and malfunction plan must be reported in the semiannual report required by 

§63.10(d)(5). If the start-up, shutdown, and malfunction plan fails to address or 

inadequately addresses an event that meets the characteristics of a malfunction but was 

not included in the start-up, shutdown, and malfunction plan at the time the Permittee 

developed the plan, the Permittee must revise the start-up, shutdown, and malfunction 

plan within 45 days after the event to include detailed procedures for operating and 

maintaining the source during similar malfunction events and a program of corrective 

action for similar malfunctions of process or air pollution control and monitoring 

equipment. In the event that the Permittee makes any revision to the start-up, shutdown, 

and malfunction plan which alters the scope of the activities at the source which are 

deemed to be a start-up, shutdown, and malfunction, or otherwise modifies the 

applicability of any emissions limit, work practice requirement, or other requirement in a 

standard established under this part, the revised plan shall not take effect until after the 

Permittee has provided a written notice describing the revision to the permitting 

authority. 

Testing Requirements- None 

Monitoring Requirements

At all times, including periods of start-up, shutdown, and malfunction, the Permittee shall 
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operate and maintain any affected source, including associated air pollution control 

equipment 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, i.e., meet the emissions standard or comply with the start-up, shutdown, and 

malfunction plan. Malfunctions shall be corrected as soon as practicable after their 

occurrence in accordance with the start-up, shutdown, and malfunction plan. To the 

extent that an unexpected event arises during a start-up, shutdown, and malfunction, the 

Permittee shall comply by minimizing emissions during such a start-up, shutdown, or 

malfunction event consistent with safety and good air pollution control practices. 

[40 CFR §63.6] 

Record Keeping Requirements

When actions taken by the Permittee during a start-up, shutdown, or malfunction 

(including actions taken to correct a malfunction) are consistent with the procedures 

specified in the affected source’s start-up, shutdown, and malfunction plan, the Permittee 

shall keep records for that event which demonstrate the procedures specified in the plan 

were followed. These records may take the form of a “checklist”, or other effective form 

of record keeping that confirms conformance with the start-up, shutdown, and malfunction

plan for that event. In addition, the Permittee shall keep records of these events as 

specified in §63.10(b), including records of the occurrence and duration of each start-up, 

shutdown, or malfunction of operation and each malfunction of the air pollution control 

and monitoring equipment. Furthermore, the Permittee shall confirm that action taken 

during the relevant reporting period during periods of start-up, shutdown, or malfunction 

were consistent with the affected source’s start-up, shutdown, and malfunction plan in the 

semiannual (or more frequent) start-up, shutdown, and malfunction report required in 

§63.10(d)(5). 

If an action taken by the Permittee during a startup, shutdown, or malfunction (including 

an action taken to correct a malfunction) is not consistent with the procedures specified in 

the affected source’s startup, shutdown, and malfunction plan, and the source exceeds the 

relevant emissions standard, then the Permittee shall record the actions taken for that 

event and shall report such actions within 2 working days after commencing actions 

inconsistent with the plan, followed by a letter within 7 working days after the end of the 

event, in accordance with §63.10(d)(5) (unless the Permittee makes alternative reporting 

arrangements , in advance, with the Administrator). 

The Permittee shall maintain at the affected source a current startup, shutdown, and 

malfunction plan and shall make the plan available upon request for inspection and 

copying by the Administrator. In addition, if the startup, shutdown, and malfunction plan 

is subsequently revised, the Permittee shall maintain at the affected source each previous 

(i.e., superseded) version of the startup, shutdown, and malfunction plan, and must make 

each such previous version available for inspection and copying by the Administrator for 

a period of 5 years after revision of the plan. If at any time after adoption of a startup, 

shutdown, and malfunction plan the affected source ceases operation or is otherwise no 

longer subject to the provisions of this Part, the Permittee shall retain a copy of the most 

recent plan for 5 years from the date the source ceases operation or is no longer subject to 
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this Part and shall make the plan available upon request for inspection and copying by the 

Administrator. 

[40 CFR §63.6] 

Reporting Requirements

The Permittee shall, if actions taken are consistent with the procedures specified in the 

start-up, shutdown, or malfunction plan, during a start-up, shut down, or malfunction of an 

affected source (including actions taken to correct a malfunction), state such information 

in a semiannual report. Reports shall only be required if a start-up, shutdown, or 

malfunction occurred during the reporting period. The start-up, shutdown, and 

malfunction report may be submitted simultaneously with the excess emissions and 

continuous monitoring system performance reports. 

Any time an action taken by the Permittee during a start-up, shut-down, or malfunction 

(including actions taken to correct a malfunction) is not consistent with the procedures in 

the start-up, shut-down, or malfunction plan, the Permittee shall make an immediate report

of the actions taken for that event within 2 working days, by telephone call or fax 

transmission. The immediate report shall be followed by a letter, certified by the 

Permittee explaining the circumstances of the event, the reasons for not following the 

start-up, shut-down, or malfunction plan, and whether any excess emissions and/or 

parameter monitoring exceedances are believed to have occurred. 

[40 CFR §63.1354]

A permit shield shall cover the applicable requirements of the Clean Air Act that are 

listed in the table above. 
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SECTION V INSIGNIFICANT ACTIVITIES 

This section contains a list of the insignificant emissions units that were reported in the 

Title V permit application. The applicable Clean Air Act requirements, if any, are listed 

below the insignificant activity. 

(1) No.__2__ Stationary internal combustion engines with less than 1,000 brake 

horsepower (746 kilowatts) operating less than 2000 hours, and 

any stationary internal combustion engines with less than 500 

brake horsepower (373 kilowatts). 

(a) Emissions During Idle Mode (COMAR 26.11.09.05B(2)). 

The Permittee may not cause or permit the discharge of 

emissions from any engine, operating at idle, greater than 10 

percent opacity. 

(b) Emissions During Operating Mode (COMAR 

26.11.0905b(3)). The Permittee may not cause or permit the 

discharge of emissions from any engine, operating at other 

than idle conditions greater than 40 percent opacity. 

Exceptions: 

(i) COMAR 26.11.09.5B(2) does not apply for a period of 2 

consecutive minutes after a period of idling of 15 consecutive 

minutes for the purpose of clearing the exhaust system. 

(ii) COMAR 26.11.09.5B(3) does not apply to emissions resulting 

directly from cold engine start-up and warm-up for the 

following maximum periods: 

(1) Engines that are idled continuously when not in service: 

30 minutes; 

(2) All other engines: 15 minutes; 

(iii) COMAR 26.11.09.05B(2) & (3) does not apply while 

maintenance, repair or testing is being performed by qualified 

mechanics.

(2) No.__2__ Unheated VOC dispensing containers or unheated VOC rinsing 

containers of 60 gallons (227 liters) capacity or less; 
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(a) The Permittee shall not use any VOC degreasing material that 

exceeds a vapor pressure of 1 mmHg at 20° Celsius (COMAR 

26.11.19.09D(2)(b)). 

(b) The Permittee shall implement good operating practices to 

minimize spills and evaporation of VOC degreasing material. 

These practices shall include covers (including water covers), 

lids, or other methods of minimizing evaporative losses, and 

reducing the time and frequency during which parts are 

cleaned (COMAR 26311.19.09D(3)(a-d)). 

(c) The Permittee shall not use a halogenated substance that is a 

VOC in any cold degreasing operations (COMAR 

263.11.19.09D(3)(a-d)). 

The Permittee shall maintain the following records of operating data 

at the sire for at least five (5) years and shall make available to the 

Department upon request: 

(a) Monthly records of the total VOC degreasing material used 

(COMAR 26.11.19.09F); and 

(b) The good operating practices established by COMAR 

26.11.19.09D established in Writing and displayed so they are 

clearly visible to the operator at the facility (COMAR 

26.11.19.09D(3)(a-d)). 

Containers, reservoirs, or tanks used exclusively for: 

(3) ___X___ Storage of butane, propane, or liquefied petroleum, or natural gas; 

 

(4) ___X___ Storage of lubricating oils: 

(a) constructed before July 23, 1984, or 

(b) constructed after July 23, 1984 and are less than 10,000 gals; 

(5) ___X___ Storage of lubricating oils greater than 10,000 gals. and constructed 

after July 23, 1984; (NOTE: tanks may have applicable 

requirements in 40 CFR Part 60) 
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(6) No.__5__ Storage of Numbers 1, 2, 4, 5, and 6 fuel oil and aviation jet engine 

fuel; 

(a) constructed before July 23, 1984, or 

(a) constructed after July 23, 1984 and are less than 10,000 gals; 

(7) No__3__ Storage of Numbers 1,2,4,5, and 6 fuel oil and aviation jet engine 

fuel greater than 10,000 gals. and constructed after July 23, 1984; 

(NOTE: this condition has applicable requirements in 40 CFR Part 

60) 

(8) ___1___ Storage of motor vehicle gasoline, having an individual tank 

capacity of 2,000 gallons or less; 

(9) ___X___ Emissions resulting from the use of explosives for blasting at 

quarrying operations and from the required disposal of boxes used to 

ship the explosive; 

(10) ___X___ Comfort air conditioning subject to requirements of title VI the 

Clean Air Act; 

(11) ___X___ Natural draft hoods or natural draft ventilators that exhaust air 

pollutants into the ambient air from manufacturing/industrial or 

commercial processes; and 

(12) ___X___ Laboratory fume hoods and vents. 
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SECTION VI STATE ONLY ENFORCEABLE CONDITIONS

The Permittee is subject to the following state-only enforceable requirements: 

A. Applicable Regulations 

(1) COMAR 26.11.06.08 which prohibits the operation or maintenance of an 

installation or premises in such a manner that a nuisance or air pollution is 

created. 

(2) COMAR 26.11.06.09 which prohibits the discharge into the 

atmosphere of gases, vapors, or odors beyond the property line in such 

a manner that a nuisance or air pollution is created. 

(3) COMAR 26.11.06.10, which contains the requirements for burning 

used oil or waste combustible fluids. 

(4) COMAR 26.11.15.05, which requires that the Permittee implement 

“Best Available Control Technology for Toxics” (T – BACT) to 

control emissions of toxic air pollutants. 

(5) COMAR 26.11.15.06, which prohibits the discharge of toxic air 

pollutants to the extent that such emissions will unreasonably 

endanger human health. 

(6) COMAR 26.11.01.11B(7), a person is required by this regulation or 

Regulation .10 of this chapter to install a CEM shall install data 

telemetry for all required CEMs. This system shall be designed and 

installed in accordance with specifications approved by the 

Department. The system shall be operational by the date specified in 

Regulation .10D(1) of this chapter.” 

B. Compliance Demonstration 

The Permittee shall submit to the Department, by April 1 of each year during the 

term of this permit, a written certification of the results of an analysis of emissions 

of toxic air pollutants from the Permittee’s facility during the previous calendar 

year. The analysis shall include either: 

(1) a statement that previously submitted compliance demonstrations for 

emissions of toxic air pollutants remain valid, or 

(2) a revised compliance demonstration, developed in accordance with 

requirements included under COMAR 26.11.15 & 16, that accounts for 

changes in operations, analytical methods, emissions determinations, or 

other circumstances that have invalidated previous demonstrations.