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PERMIT

PERMIT NO: 98PB0893 

INITIAL APPROVAL 

DATE ISSUED: MARCH 5, 2004 MODIFICATION -3

ISSUED TO: GCC Rio Grande, Inc.

THE SOURCE TO WHICH THIS PERMIT APPLIES IS DESCRIBED AND LOCATED AS FOLLOWS:

Portland cement manufacturing facility (including raw materials quarry), known as Rio Grande 

Cement Plant, located approximately six (6) miles south-southeast of Pueblo, in Pueblo County, 

Colorado. 

THE SPECIFIC EQUIPMENT OR ACTIVITY SUBJECT TO THIS PERMIT INCLUDES THE 

FOLLOWING:

This is a facility-wide permit covering all equipment / activities at this facility. Details of these 

equipment / activities are given in Attachment A. 

THIS PERMIT IS GRANTED SUBJECT TO ALL RULES AND REGULATIONS OF THE COLORADO 

AIR QUALITY CONTROL COMMISSION AND THE COLORADO AIR POLLUTION PREVENTION 

AND CONTROL ACT C.R.S. (25-7-101 et seq), TO THOSE GENERAL TERMS AND CONDITIONS 

INCLUDED IN THIS DOCUMENT AND THE FOLLOWING SPECIFIC TERMS AND CONDITIONS:

1. Construction of this source must commence within 18 months of initial approval permit issuance date or 

within 18 months of date on which such construction or activity was scheduled to commence as stated in 

the application. If commencement does not occur within the stated time the permit will expire on MARCH 

25, 2005. This is an 18-month extension from the previous expiration date not considering the interim 

extension given by Modification-2. (See General Condition No. 6., Item 1.) (Reference: Regulation No. 3, 

Part B, IV. G. 4.) 

2. If multiple provisions apply, compliance with less stringent provisions shall not excuse compliance with 

more stringent provisions. 

3. Post-construction monitoring of ambient concentrations and source impacts for Particulate Matter less than 

10 micrometers in aerodynamic diameter [PM10] shall be conducted for a period of one year. Such 

monitoring shall be started within thirty (30) days of the startup of operations. A monitoring protocol 

(including the proposed locations of monitoring stations) shall be submitted to, and approval obtained from, 

the Division. Results of such monitoring shall be reported to the Division on a quarterly basis within thirty 

(30) days of the end of the quarter. Such data shall be valid as long as the activity rates do not exceed the 

activity rates under which such monitoring was conducted. Prior to increasing the activities, the permittee 

shall approach the Division to determine if additional monitoring is required. 
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

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4. This source is subject to the odor requirements of Regulation No. 2. (State only enforceable) 

5. Within one hundred and eighty days (180) after commencement of operation, compliance with the 

conditions contained on this permit shall be demonstrated to the Division. It is the permittee's responsibility 

to self certify compliance with the conditions. Failure to demonstrate compliance within 180 days may 

result in revocation of the permit. (Information on how to certify compliance was mailed with the permit or 

can be obtained from the Division at 303-692-3189.) 

6. The manufacturer, model number and serial number of the subject equipment shall be provided to the 

Division prior to final approval, or no later than the commencement of operations. (Reference: Regulation 

No. 3, Part B, IV. E.) 

 

7. AIRS ID numbers (for example “AIRS ID: 005") shall be marked on the subject equipment (excluding the 

quarry) for ease of identification. (Reference: Regulation No. 3, Part B, IV. E.) (State only enforceable) 

8. For normal operation, and during shutdown, visible emissions shall not exceed twenty percent (20%) 

opacity. Visible emissions may not exceed 30 % opacity during periods of startup, process modification, 

fire box cleaning, or adjustment of control equipment, except that visible emissions may exceed 30 % 

opacity for up to a total of six (6) minutes in any sixty (60) consecutive minutes. Opacity shall be measured 

by EPA Method 9. (Reference: Regulation No. 1, Section II. A. 1. & 4.) 

9. This facility is subject to Title 40 CFR Part 63 - National Emission Standards for Hazardous Air Pollutants 

for Source Categories, Subpart LLL - National Emission Standards for the Portland Cement Manufacturing 

Industry. 

10. Revised Air Pollutant Emission Notices (APENs) shall be filed in accordance with Regulation No. 3, Part 

A, II. C. Penalties for non-compliance with this condition are specified in C.R.S § 25-7-122 (1)(c). 

11. Regulation No. 6 - Standards of Performance for New Stationary Sources, Part A - Federal Register 

Regulations Adopted By Reference, apply as follows: 

 

Subpart A - General Provisions: 

These apply to all emission sources to which standards under Part A apply. 

 Subpart F - Standards of Performance for Portland Cement Plants: 

These standards apply to kiln, clinker cooler, raw mill system, finish mill system, raw mill dryer, raw 

materials storage, clinker storage, conveyor transfer points, bagging and bulk loading and unloading 

systems, in accordance with Subpart F. 

 Subpart Y - Standards of Performance for Coal Preparation Plants: 

These standards apply to thermal dryers, pneumatic coal-cleaning equipment, coal processing and 

conveying equipment (including breakers and crushers), coal storage systems, and coal transfer and loading 

systems, in accordance with Subpart Y. 

 Subpart OOO - Standards of Performance for Non-Metallic Mineral Processing Plants: 

These standards apply to each crusher, grinding mill, screening operation, bucket elevator, belt conveyor, 

bagging operation, storage bin, enclosed truck or rail car loading station, in accordance with Subpart OOO. 

12. Regulation No. 6 - Standards of Performance, Part B - Specific Facilities and Sources, Non-Federal NSPS, 

apply as follows: 

 Subpart III - Standards of Performance for New Manufacturing Processes: 

C - Standard for Particulate Matter: Emissions of particulate matter shall not exceed the emission rate 
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

page 3 Air Pollution Control Division

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PERMIT 

determined by use of the equation: 

 E = 17.31 (P) 0.16

 Where: 

 E is the Allowable Particulate Matter Emissions in pounds per hour. 

 P is the Process Weight rate in tons per hour. 

Discharge into the atmosphere shall not exhibit opacity greater than 20 percent. 

D - Standard for Sulfur Dioxide: Emissions of sulfur dioxide shall be controlled by utilizing best 

practical control technology. Dry scrubbing (in 5-stage, low pressure loss, countercurrent preheater/ 

precalciner and raw mill) is used for control of sulfur dioxide in gases exiting the kiln to achieve an overall 

facility sulfur dioxide control efficiency of 85 %. 

In addition, the emission sources to which Part B applies, are also subject to Regulation 6, Part A, Subpart 

A - General Provisions. 

This condition is State only enforceable. 

13. The equipment / activities at this facility are subject to the provisions of Prevention of Significant 

Deterioration (PSD). Application of Best Available Control Technology (BACT) is required, as applicable 

to specific emission points. Emissions from various equipment / activities shall be controlled, and the 

permittee shall comply with the following BACT determinations: 

Activities resulting in emissions of particulate matter:

Particulate Matter:

Emissions of particulate matter shall be minimized / controlled by the following control measures: 

Application of water sprays during removal and handling of topsoil. 

 Compacting and revegetation of topsoil stockpiles. 

 Water injection in blasthole drilling. 

 Sequential blasting using delay action detonators to minimize formation of airborne particulate matter. 

 Raw materials (including coal) stockpiling inside complete enclosures, and dust collectors on the 

exhausts. 

 Raw materials reclamation from stockpiles by automated conveyor system, and emissions routed 

to the dust collectors. 

 Minimization of height of fall of materials being handled. Use of automatic devices in the stacking 

and reclamation operations. 

 Water sprays during truck dumping to the crusher hopper, and use of dust skirt, fabric filter dust 

collector at primary crushing. 

Partial enclosures, water sprays, and dust collectors at conveyors / transfer points. 

 Total enclosures for storage of raw materials, coal, and additives. 

 Total enclosures and dust collectors for automated conveyor reclamation of crushed products. 

 Treatment of unpaved road surfaces with chemical dust suppressants in accordance with 

manufacturer’s recommendations, and adequate watering to effectively suppress the dust from 

getting air borne. Control efficiencies of, at least 85 % for Total Suspended Particulates, and at 

least 80 % for Particulate Matter less than 10 micrometers aerodynamic diameter [PM-10] shall be 

achieved. 

 Surfactant additive for water to enhance dust suppression. 

Cleaning of accumulations of debris on haul roads and other areas where they have the potential to get air 

borne. Such cleaning shall be done with the least delay, and such delay shall in no case exceed 

four (4) hours. The haul roads and other areas shall be inspected at least twice in a work shift. 

Time interval between the first and last inspection within a work shift shall be at least three (3) 

hours. 
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

page 4 Air Pollution Control Division

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Limiting the vehicle speeds on quarry haul roads, service roads, unpaved roads, and disturbed areas to a 

maximum of 18 miles per hour. Posting of speed limit signs. 

 Reclamation works and sequential extraction of material to keep the total disturbed areas at any 

one time to a minimum. 

 Plant entryway, truck service roads, and other traffic areas shall be concreted or graveled. 

Watering shall be implemented for additional controls, as necessary. 

 Minimization of disturbed areas, revegetation, and mulching. 

 When wind speed exceeds 30 miles per hour, as measured on the property for a period lasting 

longer than fifteen (15) minutes, all additional appropriate abatement and preventive measures, for 

control of fugitive emissions, shall be applied. These shall include the use of additional water 

sprays. Suspension of all quarry activities shall occur when wind speed reaches or exceeds 30 

miles per hour, as measured on the property for a period lasting longer than sixty (60) minutes. 

Resumption of activities shall only occur when wind speeds reduce to less than 30 miles per hour 

for a continuous period lasting longer than fifteen (15) minutes. 

Materials Processing and Handling, including storage of clinker, intermediate products, and finished 

products: 

 Particulate Matter: 

Dust collectors, which will limit the concentration of particulate matter in the outlet to a maximum of 0.005 

grain per dry standard cubic foot, shall be used on all processing / conveyor / handling systems. 

Preheater / Precalciner and Kiln System referenced under AIRS ID: 039

 Carbon Monoxide:

Controls: Good Combustion Practices (multi-stage firing) for minimizing emissions of Carbon Monoxide. 

Emissions not to exceed a 12-month rolling average of 2.11 pounds per ton of clinker produced. 

“Good Combustion Practices” (applicable to Carbon Monoxide) constitute monitoring and control of 

several operating parameters. These parameters may include, fuel flow rate, primary and secondary air 

flows, carbon monoxide concentration in the flue gas, level of excess air, and recirculating air flow. All 

relevant parameters and their optimal operating ranges as per the manufacturer’s recommendations, to 

ensure minimization of emissions, for various combustion devices shall be identified, and included in the 

Compliance Assurance Monitoring (CAM) plan required by 40 CFR Part 64. Continuous emission 

monitoring systems shall be programmed to send out warnings if the operating parameters are on the verge 

of going out of the established operating ranges, and alarms shall be triggered if the operating parameters go 

out of established operating range. This provision shall be implemented, within twelve (12) months of 

commencement of operations, through the Division approved CAM plan. 

 

Oxides of Nitrogen:

Controls: Low NOx combustion system (multi-stage firing) for minimizing emissions of Oxides of 

Nitrogen. Emissions not to exceed a 12-month rolling average of 2.32 pounds per ton of clinker produced. 

Particulate Matter:

Emissions of particulate matter shall be controlled by high temperature filter medium dust collector. The 

concentration of filterable particulate matter in the dust collector outlet shall not exceed 0.01 grain per dry 

standard cubic foot. Emissions of condensable particulate matter shall be minimized by appropriate quarry 

management practices. Emissions of all condensable particulate matter shall not exceed 0.105 pound per 

ton of clinker produced. 

Sulfur Dioxide: 

Emissions of sulfur dioxide shall be minimized by: using low sulfur coals containing a 12-month rolling 

average of less than 0.65 % sulfur on as-received basis, and control by 5-stage counter-current dry scrubber 

with an overall control efficiency of at least 85 % based on pyritic sulfur in the raw materials (excluding 

coal). Emissions not to exceed a 12-month rolling average of 1.99 pounds per ton of clinker produced. 
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

page 5 Air Pollution Control Division

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PERMIT 

Clinker Cooler: 

Particulate Matter:

Emissions of particulate matter shall be controlled by high temperature filter medium dust collector. The 

concentration of particulate matter in the dust collector outlet shall not exceed 0.01 grain per dry standard 

cubic foot. 

14. The emission sources shall be equipped with control devices / systems capable of reducing uncontrolled 

emissions of various pollutants as specified in Attachment A. These control devices / systems shall be 

operated as per the recommendations of the manufacturers. These parameters shall be contained in 

Operation and Maintenance plan, and updated as necessary. 

15. The source shall be limited to throughput as listed below. and all other activities, operational rates and 

numbers of equipment as stated in the permit. Throughput of individual equipment / activities shall be 

limited to the process rate limits specified in Attachment A. Monthly records of the actual throughput shall 

be maintained by the applicant and made available to the Division for inspection upon request. (Reference: 

Regulation No. 3, Part B, III. A. 4) 

 Cement clinker produced at this facility shall not exceed 950,000 tons per year, 

86,000 tons per month, and 2,890 tons per day. 

 Total of topsoil and overburden / waste rock handled at the quarries shall not 

exceed 405,000 tons per year, 52,000 tons per month, and 2,400 tons per day. 

 Total surface area disturbed and subject to wind erosion in the quarry shall not 

exceed 15.50 acres. Areas revegetated, or surface areas stabilized with 

geotextile netting or other similar measures, are not considered subject to wind 

erosion. 

 Total raw materials extracted from the quarries shall not exceed 1,470,000 tons 

per year, 163,000 tons per month, and 7,500 tons per day. 

 Total quantity of coal processed, and fired shall not exceed 122,250 tons per 

year, 11,000 tons per month, and 370 tons per day. 

 Facility-wide consumption of pipeline quality natural gas shall not exceed 352,770,000 SCF per 

year. 

 Combination of activities shall be limited to the emission limits specified. This shall be 

demonstrated by adequate recordkeeping of the activities and corresponding emissions. 

 Additionally the following operational restrictions apply: 

 Quarrying activities ( defined by loading of quarry raw materials to trucks, truck 

transport, and unloading of raw materials at primary crusher hopper, and primary 

crushing) shall be limited to a total of ten (10) hours per day, between the hours of 6:00 

AM and 9:00 PM. 

 Overburden activities (defined by overburden removal, overburden replacement, and 

scraper activity) shall be limited to a total of eight (8) hours per day, between the hours of 

7:00 AM and 7:00 PM. 

Records shall be kept of the actual hours of quarrying and overburden activities each day. 

During the first twelve (12) months of operation, compliance with the daily, monthly and yearly limitations 

shall be required. After the first twelve (12) months of operation, compliance with the daily and yearly 

limitations is required. Compliance with the yearly limits shall be determined on a rolling twelve (12) 

month total. 
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

page 6 Air Pollution Control Division

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PERMIT 

16. Emissions of air pollutants shall not exceed the following limitations (as calculated in the Division’s 

preliminary analysis): 

 Particulate Matter - Filterable.................................................................. 155.40 tons per year 

 .................................................................................................................. 13.25 tons per month 

 Particulate Matter < 10 μm [PM-10]- Filterable:..................................... 147.97 tons per year 

 .................................................................................................................. 12.62 tons per month

 ................................................................................................................831.00 pounds per day 

 Particulate Matter (all PM-10) - Condensable ........................................... 49.70 tons per year 

 .................................................................................................................... 4.60 tons per month 

 ................................................................................................................297.00 pounds per day 

 Particulate Matter - Fugitive:..................................................................... 42.64 tons per year 

 .................................................................................................................... 3.50 tons per month 

 Particulate Matter < 10 μm [PM-10] - Fugitive:........................................ 17.77 tons per year 

 .................................................................................................................... 1.48 tons per month 

 PM-10-Fugitive (non-wind erosion).......................................................159.00 pounds per day 

 PM-10-Fugitive (wind erosion) ..............................................................177.00 pounds per day 

 Oxides of Nitrogen: .............................................................................. 1,104.30 tons per year 

 ................................................................................................................ 100.40 tons per month 

 Sulfur Dioxide: ........................................................................................ 944.00 tons per year 

 .................................................................................................................. 85.80 tons per month 

 Volatile Organic Compounds: ................................................................... 24.20 tons per year 

 .................................................................................................................... 2.20 tons per month 

 Carbon Monoxide:................................................................................ 1,010.40 tons per year 

 .................................................................................................................. 91.90 tons per month 

 Lead.........................................................................................................75.00 pounds per year 

Note 1: These limits include emissions of combustion gases from explosives used in blasting, but do not 

include emissions of combustion gases from internal combustion engines mounted on mining 

related equipment and trucks hauling out the cement product from the facility. 

Note 2: Condensable particulate matter shall be measured by EPA Reference Test Methods 202, 8, and 

26A. The calculated sulfate and nitrate emissions from Method 202 shall be limited by the 

maximum sulfate and nitrate levels measured by Methods 8 and 26A. 

During the first twelve (12) months of operation, compliance with the daily, monthly and yearly emission 

limitations is required. After the first twelve (12) months of operation, compliance with the daily and 

yearly limits is required. Compliance with the yearly limits shall be determined on a rolling twelve (12) 

month total. By the end of each month, a new twelve month total shall be calculated based on previous 

twelve (12) calendar months’ data. The permit holder shall calculate monthly emissions and keep a 

compliance record on site for Division review. (Reference: Regulation No. 3, Part B. III. A. 4) 

 

Compliance with the fugitive particulate matter emission limits shall be demonstrated by not exceeding the 

throughput limits, and by applying, the emission control measures specified under BACT condition. 

17. Source compliance tests, and continuous emission monitor certification tests (certification tests for CO, 

NOx, and SO2 ) shall be conducted, prior to final approval, to measure the emission rate(s) for the 

pollutants listed below in order, to show compliance with emission limits, to demonstrate the performance 

of the emission control devices, and to certify the continuous emission monitoring system. The test 

protocol must be in accordance with the requirements of the Air Pollution Control Division Compliance 

Test Manual dated July 1, 1998, and shall be submitted to the Division for review and approval at least 

thirty (30) days prior to testing. No compliance test shall be conducted without prior approval from the 

Division. Any stack test conducted to show compliance with a monthly or annual emission limitation, for 

pollutants not continuously monitored, shall have the results projected up to the monthly or annual 

averaging time by multiplying the test results by the allowable number of operating hours for that averaging 

time. (Reference: Regulation No. 3, Part B. IV. H. 3) 
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

page 7 Air Pollution Control Division

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 Volatile Organic Compounds using EPA approved methods. 

 Oxides of Nitrogen using EPA approved methods. 

 Carbon Monoxide using EPA approved methods. 

 Sulfur Dioxide using EPA approved methods. 

 Particulate Matter using EPA approved methods. 

 Particulate Matter less than 10 μm [PM-10] using EPA approved methods. 

All emission sources subject to specific emission standards, and those with actual uncontrolled emissions of 

10 tons per year or greater, shall be tested. These are listed on Attachment C. However, the Division 

reserves the right to require testing of any other emission source. 

18. Prior to scheduling of the stack tests with respect to this permit, the permittee shall submit to the Division 

for approval: 

 

 An operating and maintenance plan for all control equipment and control practices, and, 

 A proposed record keeping format for demonstrating compliance on an ongoing basis. (Reference: 

Regulation No. 3, Part B. IV. B. 2) 

19. Continuous emission monitoring system (CEM) shall be installed, calibrated, maintained and operated on 

the cement kiln stack for measurement and recording of, concentrations and emission rates of Oxides of 

Nitrogen, Carbon Monoxide, and Sulfur Dioxide. The CEM shall conform to 40 CFR § 60.13. Semi-annual 

reports, of the excess emission rates and monitor system downtimes, shall be submitted to the Division 

within thirty (30) days of the ending of the semi-annual period. CEM data for Nitrogen Oxides, Carbon 

Monoxide, and Sulfur Dioxide shall be used for determining compliance. 

20. This source is subject to the Common Provisions Regulation Part II, Subpart E, Upset Conditions and 

Breakdowns. In order to be entitled to relief under this section, the permittee shall notify the Division of 

any upset condition which causes a violation of any emission limit or limits stated in this permit as soon as 

possible, but no later than two (2) hours after the start of the next working day, followed by written notice 

to the Division explaining the cause of the occurrence and that proper action has been or is being taken to 

correct the conditions causing said violation and to prevent such excess emission in the future. 

21. All previous versions of this permit are canceled upon issuance of this permit. 

 __________________ ________________________ 

 Ram N. Seetharam Roland C. Hea, P.E. 

 Permit Reviewer Unit Leader 

Permit History: 

Date Action Description 

This issuance IA Modification-3 18-month extension from previous expiration date (Modification-1) 

for commencing of construction. Deletion of prohibition of 

construction commencement. 

September 25, 2003 IA Modification-2 Extension of expiration date to March 31, 2004. This is an interim 

extension to maintain the validity of the permit. Construction not to 

commence until further modification is issued. 

May 16, 2002 IA Modification-1 Transfer of ownership (name change) from Rio Grande Portland 

Cement Corporation to GCC Rio Grande, Inc.; extension of 

construction commencement date from March 25, 2002 to September 

25, 2003. 

September 25, 2000 IA Initial Approval; issued to Rio Grande Portland Cement Corporation. 

 
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

page 8 Air Pollution Control Division

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PERMIT 

Notes to Permit Holder: 

1) The production / throughput or raw material processing limits and emission limits contained in this permit 

are based on the production/processing rates requested in the permit application. These limits may be 

revised upon request of the permittee providing there is no exceedance of any specific emission control 

regulation or any ambient air quality standard. A revised air pollution emission notice (APEN) and 

application form must be submitted with a request for a permit revision. 

2) The emission levels contained in this permit are based on the emission factors used in the Division’s 

preliminary analysis. 

3) This source is classified as a: 

 Major Stationary Source. 

 Major Source for applicability of operating permit. 

4) This source is subject to the provisions of Regulation No. 3, Part C - Operating Permits (Title V of the 

Federal Clean Air Act Amendments, 1990). The application for the Operating Permit is due within one 

year of commencing operation. 

5) The following emissions of non-criteria reportable air pollutants are estimated based upon the material 

consumption / throughput limits. This information is listed to inform the operator of the Division's analysis 

of the specific compounds, and are not enforceable limits. This information is listed on the Division's 

emission inventory system. 

 C.A.S. # SUBSTANCE EMISSIONS [LB/YR]

 7647-01-0 Hydrogen Chloride (Hydrochloric Acid) .................................................27,265.0 

 0 Manganese Compounds................................................................................817.0 

 0 Chromium Compounds.................................................................................133.0 

 71-43-2 Benzene ...................................................................................................15,200.0 

 74-87-3 Chloromethane..............................................................................................361.0 

 75-09-2 Methylene Chloride ......................................................................................466.0 

 7446-11-9 Sulfur Trioxide.........................................................................................13,300.0 

 7664-41-7 Ammonia ...................................................................................................9,500.0 

 Others, total................................................................................................2,192.0 
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

page 9 Air Pollution Control Division

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PERMIT 

ATTACHMENT A

EQUIPMENT / ACTIVITIES COVERED UNDER THIS FACILITY-WIDE PERMIT

AIRS 

ID

DESCRIPTION 

MAKE, MODEL, SERIAL NUMBER, DESIGN RATE, CAPACITY, DIMENSIONS, 

CONSTRUCTION DETAILS, CONSUMPTION, THROUGHPUT, EMISSION 

CONTROLS, EMISSIONS

REMARKS 

SPECIFIC PROVISIONS

001 GASOLINE AND DIESEL FUEL STORAGE AND DISPENSING

ONE (1) HORIZONTAL STORAGE TANK, 8000-GALLON CAPACITY, FOR 

STORAGE OF GASOLINE. 

PROCESS RATE LIMIT: 

GASOLINE STORED / DISPENSED: 9,600 GALLONS PER YEAR

ONE (1) HORIZONTAL STORAGE TANK, 8000-GALLON CAPACITY, FOR 

STORAGE OF DIESEL FUEL. 

PROCESS RATE LIMIT: 

DIESEL FUEL STORED / DISPENSED: 9,600 GALLONS PER YEAR

ONE (1) HORIZONTAL STORAGE TANK, 10000-GALLON CAPACITY, FOR 

STORAGE OF DIESEL FUEL. 

PROCESS RATE LIMIT: 

DIESEL FUEL STORED / DISPENSED: 133,300 GALLONS PER YEAR

002 RAW MATERIALS QUARRY

PROCESS RATE LIMITS: 

TOTAL RAW MATERIALS QUARRIED: 1,470,000 TONS PER YEAR 

OVERBURDEN/WASTE ROCK, AND TOPSOIL HANDLED: 

 405,000 TONS PER YEAR 

EMISSION LIMITS: 

PARTICULATE MATTER (PM)-FUG.: 34.82 TONS PER YEAR 

PM-10 - FUG.: 14.33 TONS PER YEAR

PARTICULATE MATTER EMISSIONS 

CONTROL PLAN. 

CONTROL EFFICIENCY: 

A MINIMUM OF 90 % FOR PM-10, AND PM.

003 PRIMARY CRUSHER SYSTEM. STACK ID: 312A

PROCESS: RECEIVING OF RUN OF MINE RAW MATERIALS AT THE CRUSHER 

HOPPER, FEEDING TO THE CRUSHER, CRUSHING, CONVEYING/ 

TRANSFERRING TO TRANSFER TOWERS. 

EQUIPMENT: 

ONE (1) MAKE, MODEL, AND S/N: NOT AVAILABLE, IMPACT TYPE, ROCK 

CRUSHER, DESIGN INPUT RATED AT 750 TONS PER HOUR. THIS IS USED FOR 

CRUSHING OF RAW MATERIALS. 

SIX_(6) TRANSFER POINTS. 

PROCESS RATE LIMITS: 

RAW MATERIALS PROCESSED: 1,470,000 TONS PER YEAR 

EMISSION LIMITS: 

PARTICULATE MATTER (PM): 0.56 TON PER YEAR 

PM-10: 0.53 TON PER YEAR

HOPPER ENCLOSURE EQUIPPED WITH 

DUST CURTAINS, AND MAINTAINED AT 

NEGATIVE PRESSURE, AND EXHAUSTED 

THROUGH MEMBRANE FILTER DUST 

COLLECTOR. 

WATER, TREATED WITH SURFACE 

REACTIVE AGENTS, SPRAYED AT TIME OF 

DUMPING, AND TILL THE DUST SUBSIDES 

IN THE HOPPER ENCLOSURE. 

AIR SWEPT THROUGH THE CRUSHER IS 

EXHAUSTED THROUGH MEMBRANE 

FILTER MEDIUM DUST COLLECTOR. 

OUTLET PARTICULATE LOADING IS A 

MAXIMUM OF 0.005 GRAIN PER DRY 

STANDARD CUBIC FOOT. 

SUBJECT TO NSPS, OOO

ATTACHMENT A CONTINUED...
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

page 10 Air Pollution Control Division

101/0252/999 ver. 2/00 

DRAFT 

PERMIT 

ATTACHMENT A

EQUIPMENT / ACTIVITIES COVERED UNDER THIS FACILITY-WIDE PERMIT

AIRS 

ID

DESCRIPTION 

MAKE, MODEL, SERIAL NUMBER, DESIGN RATE, CAPACITY, DIMENSIONS, 

CONSTRUCTION DETAILS, CONSUMPTION, THROUGHPUT, EMISSION 

CONTROLS, EMISSIONS

REMARKS 

SPECIFIC PROVISIONS

004 RAW MATERIALS TRANSFER TOWER. STACK ID: 312B

TRANSFERRING OF CRUSHED LIMESTONE AND SHALE FROM CONVEYOR TO 

CONVEYOR. 

PROCESS RATE LIMITS: 

RAW MATERIALS TRANSFERRED: 1,470,000 TONS PER YEAR 

EMISSION LIMITS: 

PARTICULATE MATTER: 1.33 TONS PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 1.27 TONS PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

005 RAW MATERIALS TRANSFER TOWER. STACK ID: 312C

TRANSFERRING OF CRUSHED LIMESTONE AND SHALE. 

PROCESS RATE LIMITS: 

RAW MATERIALS TRANSFERRED: 1,470,000 TONS PER YEAR 

EMISSION LIMITS: 

PARTICULATE MATTER: 1.33 TONS PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 1.27 TONS PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

006 RAW MATERIALS TRANSFER TOWER. STACK ID: 312D

TRANSFERRING OF CRUSHED LIMESTONE AND SHALE. 

PROCESS RATE LIMITS: 

RAW MATERIALS TRANSFERRED: 1,470,000 TONS PER YEAR 

EMISSION LIMITS: 

PARTICULATE MATTER: 1.33 TONS PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 1.27 TONS PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

007 GYPSUM UNLOADING. STACK ID: 335A

UNLOADING OF GYPSUM FROM TRUCKS / RAILCARS. 

PROCESS RATE LIMITS: 

RAW MATERIALS TRANSFERRED: 70,000 TONS PER YEAR 

EMISSION LIMITS: 

PARTICULATE MATTER: 1.07 TONS PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 1.02 TONS PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

page 11 Air Pollution Control Division

101/0252/999 ver. 2/00 

DRAFT 

PERMIT 

ATTACHMENT A

EQUIPMENT / ACTIVITIES COVERED UNDER THIS FACILITY-WIDE PERMIT

AIRS 

ID

DESCRIPTION 

MAKE, MODEL, SERIAL NUMBER, DESIGN RATE, CAPACITY, DIMENSIONS, 

CONSTRUCTION DETAILS, CONSUMPTION, THROUGHPUT, EMISSION 

CONTROLS, EMISSIONS

REMARKS 

SPECIFIC PROVISIONS

ATTACHMENT A CONTINUED...

008 LIMESTONE FEED BIN. STACK ID: 410A

TRANSFERRING OF CRUSHED LIMESTONE AND SHALE INTO AND OUT OF 

FEED BIN. 

PROCESS RATE LIMITS: 

RAW MATERIALS TRANSFERRED: 1,470,000 TONS PER YEAR 

EMISSION LIMITS: 

PARTICULATE MATTER: 5.16 TONS PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 4.91 TONS PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

009 LIMESTONE FEED BIN. STACK ID: 410B

TRANSFERRING OF CRUSHED LIMESTONE AND SHALE INTO AND OUT OF 

FEED BIN. 

PROCESS RATE LIMITS: 

RAW MATERIALS TRANSFERRED: 1,470,000 TONS PER YEAR 

EMISSION LIMITS: 

PARTICULATE MATTER: 0.56 TON PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 0.53 TON PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

010 LIMESTONE FEED BIN. STACK ID: 410C

TRANSFERRING OF CRUSHED LIMESTONE AND SHALE INTO AND OUT OF 

FEED BIN. 

PROCESS RATE LIMITS: 

RAW MATERIALS TRANSFERRED: 1,470,000 TONS PER YEAR 

EMISSION LIMITS: 

PARTICULATE MATTER: 0.56 TON PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 0.53 TON PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

011 SANDSTONE FEED BIN. STACK ID: 410D

TRANSFERRING OF SANDSTONE INTO AND OUT OF FEED BIN. 

PROCESS RATE LIMITS: 

RAW MATERIALS TRANSFERRED: 130,000 TONS PER YEAR 

EMISSION LIMITS: 

PARTICULATE MATTER: 0.56 TON PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 0.53 TON PER YEAR

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

page 12 Air Pollution Control Division

101/0252/999 ver. 2/00 

DRAFT 

PERMIT 

ATTACHMENT A

EQUIPMENT / ACTIVITIES COVERED UNDER THIS FACILITY-WIDE PERMIT

AIRS 

ID

DESCRIPTION 

MAKE, MODEL, SERIAL NUMBER, DESIGN RATE, CAPACITY, DIMENSIONS, 

CONSTRUCTION DETAILS, CONSUMPTION, THROUGHPUT, EMISSION 

CONTROLS, EMISSIONS

REMARKS 

SPECIFIC PROVISIONS

ATTACHMENT A CONTINUED...

012 RAW MATERIALS UNLOADING. STACK ID: 851B

UNLOADING OF RAW MATERIALS - SILICA SAND, HEMATITE, BOTTOM ASH, 

AND COAL. 

PROCESS RATE LIMITS: 

TOTAL RAW MATERIALS UNLOADED: 354,000 TONS PER YEAR 

EMISSIONS LIMITS: 

PARTICULATE MATTER: 2.14 TONS PER YEAR 

PARTICULATE MATTER < 10 μM: 2.04 TONS PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

013 RAW MILL FEED CONVEYOR / TRANSFER. STACK ID: 410E

CONVEYING AND TRANSFERRING OF RAW MILL FEED. 

PROCESS RATE LIMITS: 

MATERIAL CONVEYED / TRANSFERRED: 1,780,000 TONS PER YEAR 

EMISSIONS LIMITS: 

PARTICULATE MATTER: 1.33 TONS PER YEAR 

PARTICULATE MATTER < 10 μM: 1.27 TONS PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

014 RAW MILL FEED CONVEYOR / TRANSFER. STACK ID: 420A 

CONVEYING AND TRANSFERRING OF RAW MILL FEED. 

PROCESS RATE LIMITS: 

MATERIAL TRANSFERRED / CONVEYED: 1,780,000 TONS PER YEAR 

EMISSIONS LIMITS: 

PARTICULATE MATTER: 1.97 TONS PER YEAR 

PARTICULATE MATTER < 10 μM: 1.88 TONS PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

015 RECYCLING IN RAW MILL SYSTEM. STACK ID: 420B

RAW MILL OPERATES IN CLOSED-CIRCUIT. PRODUCT FROM RAW MILL IS 

SEPARATED INTO COARSE AND FINE FRACTIONS. COARSE FRACTION IS FED 

BACK TO THE MILL. 

PROCESS RATE LIMITS: 

COARSE FRACTION CONVEYED/TRANSFERRED: 900,000 TONS PER YEAR 

EMISSIONS LIMITS: 

PARTICULATE MATTER: 0.37 TON PER YEAR 

PARTICULATE MATTER < 10 μM: 0.35 TON PER YEAR

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

page 13 Air Pollution Control Division

101/0252/999 ver. 2/00 

DRAFT 

PERMIT 

ATTACHMENT A

EQUIPMENT / ACTIVITIES COVERED UNDER THIS FACILITY-WIDE PERMIT

AIRS 

ID

DESCRIPTION 

MAKE, MODEL, SERIAL NUMBER, DESIGN RATE, CAPACITY, DIMENSIONS, 

CONSTRUCTION DETAILS, CONSUMPTION, THROUGHPUT, EMISSION 

CONTROLS, EMISSIONS

REMARKS 

SPECIFIC PROVISIONS

ATTACHMENT A CONTINUED...

016 RAW MILL CRUDE DUST COLLECTOR. STACK ID: 430A

AUXILIARY DUST COLLECTOR IN THE CRUDE (RAW) MILL RECYCLE 

SYSTEM. 

PROCESS RATE LIMITS: 

COARSE FRACTION CONVEYED/TRANSFERRED: 900,000 TONS PER YEAR 

EMISSIONS LIMITS: 

PARTICULATE MATTER: 0.27 TON PER YEAR 

PARTICULATE MATTER < 10 μM: 0.26 TON PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

017 CRUDE SILO 1. STACK ID: 440A

MILLED RAW MATERIAL (CRUDE, ALSO REFERRED AS RAW MEAL) IS 

CONVEYED AND TRANSFERRED INTO THE SILO FOR HOMOGENIZING. 

PROCESS RATE LIMITS: 

RAW MEAL TRANSFERRED/CONVEYED: 1,760,000 TONS PER YEAR 

EMISSION LIMITS: 

PARTICULATE MATTER: 1.47 TONS PER YEAR 

PARTICULATE MATTER < 10 μM: 1.40 TONS PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

018 BIN SCALE FINES FEEDBACK. STACK ID: 510A

HANDLING (TRANSFER / CONVEYING) OF EXCESS MATERIAL FROM CRUDE 

BIN SCALE. 

PROCESS RATE LIMITS: 

MATERIAL TRANSFERRED/CONVEYED: 350,000 TONS PER YEAR 

EMISSION LIMITS: 

PARTICULATE MATTER: 0.46 TON PER YEAR 

PARTICULATE MATTER < 10 μM: 0.44 TON PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

019 CRUDE FEED BIN SCALE. STACK ID: 520A
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

page 14 Air Pollution Control Division

101/0252/999 ver. 2/00 

DRAFT 

PERMIT 

ATTACHMENT A

EQUIPMENT / ACTIVITIES COVERED UNDER THIS FACILITY-WIDE PERMIT

AIRS 

ID

DESCRIPTION 

MAKE, MODEL, SERIAL NUMBER, DESIGN RATE, CAPACITY, DIMENSIONS, 

CONSTRUCTION DETAILS, CONSUMPTION, THROUGHPUT, EMISSION 

CONTROLS, EMISSIONS

REMARKS 

SPECIFIC PROVISIONS

HANDLING (TRANSFER / CONVEYING) OF CRUDE INTO AND FROM CRUDE 

BIN SCALE. 

PROCESS RATE LIMITS: 

MATERIAL TRANSFERRED/CONVEYED: 1,600,000 TONS PER YEAR 

EMISSION LIMITS: 

PARTICULATE MATTER: 0.83 TON PER YEAR 

PARTICULATE MATTER < 10 μM: 0.79 TON PER YEAR

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

ATTACHMENT A CONTINUED...

020 CRUDE RECYCLE SYSTEM. STACK ID: 520B

HANDLING OF RAW MEAL (CRUDE) IN RECYCLE SYSTEM. 

PROCESS RATE LIMITS: 

MATERIAL TRANSFERRED/CONVEYED: 1,600,000 TONS PER YEAR 

EMISSION LIMITS: 

PARTICULATE MATTER: 0.60 TON PER YEAR 

PARTICULATE MATTER < 10 μM: 0.57 TON PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

021 CRUDE FEED TO SILOS 1 AND 2. STACK ID: 520C

TRANSFERS OF CRUDE FEED TO STORAGE SILOS. 

PROCESS RATE LIMITS: 

MATERIAL TRANSFERRED/CONVEYED: 800,000 TONS PER YEAR 

EMISSION LIMITS: 

PARTICULATE MATTER: 0.87 TON PER YEAR 

PARTICULATE MATTER < 10 μM: 0.83 TON PER YEAR

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

022 CLINKER COOLER DISCHARGE. STACK ID: 571A

TRANSFER OF CLINKER FROM COOLER TO CONVEYOR. 

PROCESS RATE LIMITS: 

MATERIAL TRANSFERRED: 950,000 TONS PER YEAR 

EMISSION LIMITS: 

PARTICULATE MATTER: 0.64 TON PER YEAR 

PARTICULATE MATTER < 10 μM: 0.61 TON PER YEAR

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

023 CLINKER CONVEYOR / TRANSFER. STACK ID: 571B
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

page 15 Air Pollution Control Division

101/0252/999 ver. 2/00 

DRAFT 

PERMIT 

ATTACHMENT A

EQUIPMENT / ACTIVITIES COVERED UNDER THIS FACILITY-WIDE PERMIT

AIRS 

ID

DESCRIPTION 

MAKE, MODEL, SERIAL NUMBER, DESIGN RATE, CAPACITY, DIMENSIONS, 

CONSTRUCTION DETAILS, CONSUMPTION, THROUGHPUT, EMISSION 

CONTROLS, EMISSIONS

REMARKS 

SPECIFIC PROVISIONS

TRANSFERRING AND CONVEYING OF CLINKER. 

PROCESS RATE LIMITS: 

CLINKER TRANSFERRED: 950,000 TONS PER YEAR 

EMISSION LIMITS: 

PARTICULATE MATTER: 1.61 TONS PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 1.53 TONS PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

ATTACHMENT A CONTINUED...

024 CLINKER CONVEYOR. STACK ID: 571C

TRANSFERRING AND CONVEYING OF CLINKER. 

PROCESS RATE LIMITS: 

CLINKER TRANSFERRED: 950,000 TONS PER YEAR 

EMISSION LIMITS: 

PARTICULATE MATTER: 0.87 TON PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 0.83 TON PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

025 BUNKER 1 (CLINKER) DISCHARGE. STACK ID: 571D

TRANSFERRING (DISCHARGING) FROM CLINKER BUNKER. 

PROCESS RATE LIMITS: 

CLINKER TRANSFERRED: 950,000 TONS PER YEAR 

EMISSION LIMITS: 

PARTICULATE MATTER: 1.74 TONS PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 1.66 TONS PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

026 SPECIAL CLINKER SILO. STACK ID: 573A

TRANSFER OF CLINKER INTO AND FROM CLINKER SILO. 

PROCESS RATE LIMITS: 

CLINKER TRANSFERRED: 500,000 TONS PER YEAR 

EMISSION LIMITS: 

PARTICULATE MATTER: 1.61 TONS PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 1.53 TONS PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

page 16 Air Pollution Control Division

101/0252/999 ver. 2/00 

DRAFT 

PERMIT 

ATTACHMENT A

EQUIPMENT / ACTIVITIES COVERED UNDER THIS FACILITY-WIDE PERMIT

AIRS 

ID

DESCRIPTION 

MAKE, MODEL, SERIAL NUMBER, DESIGN RATE, CAPACITY, DIMENSIONS, 

CONSTRUCTION DETAILS, CONSUMPTION, THROUGHPUT, EMISSION 

CONTROLS, EMISSIONS

REMARKS 

SPECIFIC PROVISIONS

027 CLINKER BELT CONVEYOR. STACK ID: 574A

TRANSFERRING AND CONVEYING OF CLINKER 

PROCESS RATE LIMITS: 

CLINKER TRANSFERRED/CONVEYED: 950,000 TONS PER YEAR 

EMISSION LIMITS: 

PARTICULATE MATTER: 1.20 TONS PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 1.14 TONS PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

ATTACHMENT A CONTINUED...

028 CLINKER BELT CONVEYOR. STACK ID: 574B

TRANSFERRING AND CONVEYING OF CLINKER 

PROCESS RATE LIMITS: 

CLINKER TRANSFERRED/CONVEYED: 950,000 TONS PER YEAR 

EMISSION LIMITS: 

PARTICULATE MATTER: 0.41 TON PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 0.39 TON PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

029 CLINKER FEED BIN. STACK ID: 574C

TRANSFER INTO AND OUT OF CLINKER FEED BIN. 

PROCESS RATE LIMITS: 

CLINKER TRANSFERRED: 950,000 TONS PER YEAR 

EMISSIONS LIMITS: 

PARTICULATE MATTER: 0.33 TON PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 0.31 TON PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

030 CLINKER FEED BIN. STACK ID: 574D
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

page 17 Air Pollution Control Division

101/0252/999 ver. 2/00 

DRAFT 

PERMIT 

ATTACHMENT A

EQUIPMENT / ACTIVITIES COVERED UNDER THIS FACILITY-WIDE PERMIT

AIRS 

ID

DESCRIPTION 

MAKE, MODEL, SERIAL NUMBER, DESIGN RATE, CAPACITY, DIMENSIONS, 

CONSTRUCTION DETAILS, CONSUMPTION, THROUGHPUT, EMISSION 

CONTROLS, EMISSIONS

REMARKS 

SPECIFIC PROVISIONS

TRANSFER INTO AND OUT OF CLINKER FEED BIN. 

PROCESS RATE LIMITS: 

CLINKER TRANSFERRED: 950,000 TONS PER YEAR 

EMISSIONS LIMITS: 

PARTICULATE MATTER: 0.46 TON PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 0.44 TON PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

031 CEMENT MILL 1 FEED CONVEYOR. STACK ID: 610A

CONVEYING TRANSFERRING OF FEED TO FINISH CEMENT MILL 

PROCESS RATE LIMITS: 

FINISH MILL FEED CONVEYED: 1,000,000 TONS PER YEAR 

EMISSIONS LIMITS: 

PARTICULATE MATTER: 1.10 TONS PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 1.05 TONS PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

ATTACHMENT A CONTINUED...

032 CEMENT CONVEYOR FROM FINISH MILL. STACK ID: 620B

TRANSFERRING AND CONVEYING OF CEMENT. 

PROCESS RATE LIMITS: 

CEMENT CONVEYED/TRANSFERRED: 1,000,000 TONS PER YEAR 

EMISSIONS LIMITS: 

PARTICULATE MATTER: 0.74 TON PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 0.70 TON PER YEAR

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

033 CEMENT SILO 1. STACK ID: 630A

TRANSFER OF CEMENT INTO STORAGE SILO. 

PROCESS RATE LIMITS: 

CEMENT TRANSFERRED: 1,000,000 TONS PER YEAR 

EMISSIONS LIMITS: 

PARTICULATE MATTER: 0.56 TON PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 0.53 TON PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

034 CEMENT SILO 2. STACK ID: 630B
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

page 18 Air Pollution Control Division

101/0252/999 ver. 2/00 

DRAFT 

PERMIT 

ATTACHMENT A

EQUIPMENT / ACTIVITIES COVERED UNDER THIS FACILITY-WIDE PERMIT

AIRS 

ID

DESCRIPTION 

MAKE, MODEL, SERIAL NUMBER, DESIGN RATE, CAPACITY, DIMENSIONS, 

CONSTRUCTION DETAILS, CONSUMPTION, THROUGHPUT, EMISSION 

CONTROLS, EMISSIONS

REMARKS 

SPECIFIC PROVISIONS

TRANSFER OF CEMENT INTO STORAGE SILO. 

PROCESS RATE LIMITS: 

CEMENT TRANSFERRED: 1,000,000 TONS PER YEAR 

EMISSIONS LIMITS: 

PARTICULATE MATTER: 0.56 TON PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 0.53 TON PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

035 CEMENT DISCHARGE, SILO 1 (LOADOUT). STACK ID: 732A

CEMENT DISCHARGE FROM SILO FOR LOADING INTO TRUCKS / RAILCARS. 

PROCESS RATE LIMITS: 

CEMENT DISCHARGED: 1,000,000 TONS PER YEAR 

EMISSIONS LIMITS: 

PARTICULATE MATTER: 0.74 TON PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 0.70 TON PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

ATTACHMENT A CONTINUED...

036 CEMENT DISCHARGE, SILO 2 (LOADOUT). STACK ID: 732B 

CEMENT DISCHARGE FROM SILO FOR LOADING INTO TRUCKS / RAILCARS. 

PROCESS RATE LIMITS: 

CEMENT DISCHARGED: 1,000,000 TONS PER YEAR 

EMISSIONS LIMITS: 

PARTICULATE MATTER: 0.74 TON PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 0.70 TON PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

037 COAL MILL
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

page 19 Air Pollution Control Division

101/0252/999 ver. 2/00 

DRAFT 

PERMIT 

ATTACHMENT A

EQUIPMENT / ACTIVITIES COVERED UNDER THIS FACILITY-WIDE PERMIT

AIRS 

ID

DESCRIPTION 

MAKE, MODEL, SERIAL NUMBER, DESIGN RATE, CAPACITY, DIMENSIONS, 

CONSTRUCTION DETAILS, CONSUMPTION, THROUGHPUT, EMISSION 

CONTROLS, EMISSIONS

REMARKS 

SPECIFIC PROVISIONS

MILLING OF COAL FOR FIRING INTO KILN/PREHEATER/PRECALCINER 

PROCESS RATE LIMITS: 

COAL MILLED: 122,250 TONS PER YEAR 

A SLIP STREAM OF HOT GASES FROM PRE-CALCINER / PRE-HEATER IS 

ROUTED THROUGH THE COAL MILL FOR DRYING OF COAL. OFF GASES 

FROM THE COAL MILL ARE ROUTED TO A FABRIC FILTER BAGHOUSE AND 

THEN TO THE MAIN KILN STACK (AIRS ID: 039). 

SUBJECT TO NSPS, F. 

NO SEPARATE EMISSION STACK FOR THIS 

PROCESS UNIT 

038 TRANSFER TOWER - COAL. STACK ID: 851D 

TRANSFER OF INCOMING COAL TO CONVEYOR SYSTEM. 

PROCESS RATE LIMITS: 

COAL TRANSFERRED: 122,250 TONS PER YEAR 

EMISSION LIMITS: 

PARTICULATE MATTER: 0.56 TON PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 0.53 TON PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

ATTACHMENT A CONTINUED... 

039 CEMENT KILN INCLUDING 5-STAGE PREHEATER/PRECALCINER. STACK 

ID: STACK 1
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

page 20 Air Pollution Control Division

101/0252/999 ver. 2/00 

DRAFT 

PERMIT 

ATTACHMENT A

EQUIPMENT / ACTIVITIES COVERED UNDER THIS FACILITY-WIDE PERMIT

AIRS 

ID

DESCRIPTION 

MAKE, MODEL, SERIAL NUMBER, DESIGN RATE, CAPACITY, DIMENSIONS, 

CONSTRUCTION DETAILS, CONSUMPTION, THROUGHPUT, EMISSION 

CONTROLS, EMISSIONS

REMARKS 

SPECIFIC PROVISIONS

PYROPROCESSING OF CRUDE IN A 5-STAGE PRE-HEATER/PRE-CALCINER AND 

CLINKERING ROTARY KILN TO PRODUCE CEMENT CLINKER. 

PROCESS RATE LIMITS: 

CEMENT CLINKER PRODUCED: 950,000 TONS PER YEAR 

EMISSIONS LIMITS: 

PARTICULATE MATTER - FILTERABLE: 48.20 TONS PER YEAR 

PM-10 - FILTERABLE: 45.90 TONS PER YEAR 

PARTICULATE MATTER - CONDENSABLE: 49.70 TONS PER YEAR 

( ALL PM-10) 

OXIDES OF NITROGEN: 1,100.00 TONS PER YEAR 

SULFUR DIOXIDE: 943.35 TONS PER YEAR 

VOLATILE ORGANIC COMPOUNDS: 23.80 TONS PER YEAR 

CARBON MONOXIDE: 1,000.00 TONS PER YEAR 

SUBJECT TO NSPS, F. 

MULTI-STAGE COMBUSTION FOR 

MINIMIZATION OF EMISSIONS OF OXIDES 

OF NITROGEN AND CARBON MONOXIDE. 

OTHER THAN THOSE LIMITED GASES 

USED TO DRY COAL IN THE COAL MILL, 

GASES EXITING THE PREHEATER ARE 

ROUTED THROUGH THE RAW MILL, FOR 

AT LEAST 95 % OF THE OPERATIONS OF 

THE KILN, FOR ADDITIONAL 

ABSORPTION OF SULFUR DIOXIDE. NO 

SEPARATE STACK FOR RAW MILL 

PARTICULATE EMISSIONS CONTROLLED 

BY HIGH TEMPERATURE FILTER MEDIUM 

DUST COLLECTOR. 

PARTICULATE LOADING IN THE OUTLET: 

MAXIMUM OF 0.01 GRAIN PER DSCF. 

WHEN RAW MILL IS NOT OPERATING, 

GASES FROM THE PREHEATER WILL BE 

ROUTED THROUGH THE CONDITIONING 

TOWER. 

GASES EXITING COAL MILL BAGHOUSE 

(AIRS ID: 037) ARE ROUTED INTO THIS 

KILN STACK.

040 CLINKER COOLER. STACK ID: STACK 2

AIR COOLING OF CLINKER DISCHARGED FROM CEMENT KILN. 

PROCESS RATE LIMITS: 

CLINKER COOLED: 950,000 TONS PER YEAR 

EMISSIONS LIMITS: 

PARTICULATE MATTER: 48.38 TONS PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 46.08 TONS PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY HIGH TEMPERATURE FILTER MEDIUM 

DUST COLLECTOR. 

PARTICULATE LOADING IN THE OUTLET: 

MAXIMUM OF 0.01 GRAIN PER DSCF.

ATTACHMENT A CONTINUED... 

041 CEMENT MILL 1. STACK ID: STACK 3
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

page 21 Air Pollution Control Division

101/0252/999 ver. 2/00 

DRAFT 

PERMIT 

ATTACHMENT A

EQUIPMENT / ACTIVITIES COVERED UNDER THIS FACILITY-WIDE PERMIT

AIRS 

ID

DESCRIPTION 

MAKE, MODEL, SERIAL NUMBER, DESIGN RATE, CAPACITY, DIMENSIONS, 

CONSTRUCTION DETAILS, CONSUMPTION, THROUGHPUT, EMISSION 

CONTROLS, EMISSIONS

REMARKS 

SPECIFIC PROVISIONS

FINISH MILLING OF CLINKER AND ADDITIVES TO PRODUCE PORTLAND 

CEMENT. 

PROCESS RATE LIMITS: 

CEMENT PRODUCED: 1,000,000 TONS PER YEAR 

EMISSIONS LIMITS: 

PARTICULATE MATTER: 18.40 TONS PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 17.52 TONS PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

042 TRANSFER TOWER, RAW MATERIALS. STACK ID: 312E

TRANSFER OF RAW MATERIALS (RECEIVED FROM OUTSIDE SOURCES) ONTO 

CONVEYOR SYSTEM. 

PROCESS RATE LIMITS: 

TOTAL RAW MATERIALS TRANSFERRED: 170,000 TONS PER YEAR 

EMISSIONS LIMITS: 

PARTICULATE MATTER: 1.33 TONS PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 1.27 TONS PER YEAR 

SUBJECT TO NSPS, F. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

043 TRANSFER TOWER, RAW MATERIALS. STACK ID: 324A

TRANSFER OF RAW MATERIALS (RECEIVED FROM OUTSIDE SOURCES: SILICA 

SAND, HEMATITE, BOTTOM ASH, AND COAL) ONTO CONVEYOR SYSTEM. 

PROCESS RATE LIMITS: 

TOTAL RAW MATERIALS TRANSFERRED: 290,000 TONS PER YEAR 

EMISSIONS LIMITS: 

PARTICULATE MATTER: 1.33 TONS PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 1.27 TONS PER YEAR

SUBJECT TO NSPS, F AND Y 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

044 TRANSFER TOWER, COAL. STACK ID: 851C

TRANSFER OF COAL RECEIVED FROM OUTSIDE ONTO CONVEYOR SYSTEM. 

PROCESS RATE LIMITS: 

COAL TRANSFERRED: 122,250 TONS PER YEAR 

EMISSIONS LIMITS: 

PARTICULATE MATTER: 0.56 TON PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 0.53 TON PER YEAR

SUBJECT TO NSPS, Y. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

ATTACHMENT A CONTINUED... 
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

page 22 Air Pollution Control Division

101/0252/999 ver. 2/00 

DRAFT 

PERMIT 

ATTACHMENT A

EQUIPMENT / ACTIVITIES COVERED UNDER THIS FACILITY-WIDE PERMIT

AIRS 

ID

DESCRIPTION 

MAKE, MODEL, SERIAL NUMBER, DESIGN RATE, CAPACITY, DIMENSIONS, 

CONSTRUCTION DETAILS, CONSUMPTION, THROUGHPUT, EMISSION 

CONTROLS, EMISSIONS

REMARKS 

SPECIFIC PROVISIONS

045 COAL SILO. STACK ID: 851E

TRANSFER INTO AND OUT OF STORAGE SILO. 

PROCESS RATE LIMITS: 

COAL TRANSFERRED: 122,250 TONS PER YEAR 

EMISSIONS LIMITS: 

PARTICULATE MATTER: 0.56 TON PER YEAR 

PARTICULATE MATTER < 10 μM [PM-10]: 0.53 TON PER YEAR 

SUBJECT TO NSPS, Y. 

PARTICULATE EMISSIONS CONTROLLED 

BY MEMBRANE FILTER MEDIUM DUST 

COLLECTOR. PARTICULATE LOADING IN 

THE OUTLET: MAXIMUM 0.005 GRAIN PER 

DSCF. 

046 CEMENT PRODUCT HAULOUT. 

TRUCK HAULAGE ON PAVED SURFACES. CEMENT PRODUCT IS HAULED BY 

TRUCKS. 

PROCESS RATE LIMITS: 

CEMENT HAULED OUT BY TRUCKS: 350,000 TONS PER YEAR. 

EMISSIONS LIMITS: 

PARTICULATE MATTER - FUGITIVE: 7.22 TONS PER YEAR 

PM-10 - FUGITIVE: 3.44 TONS PER YEAR 

FUGITIVE DUST CONTROL MEASURES. 

DAILY CLEANING OF THE PAVED HAUL 

SURFACES, AS NECESSARY, BASED ON 

VISUAL INSPECTION. 

END OF ATTACHMENT A.
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

page 23 Air Pollution Control Division

101/0252/999 ver. 2/00 

DRAFT 

PERMIT 

ATTACHMENT B

PARTICULATE EMISSIONS CONTROL PLAN FOR MINING AND PROCESSING ACTIVITIES

THE FOLLOWING PARTICULATE EMISSIONS CONTROL MEASURES SHALL BE USED FOR 

COMPLIANCE PURPOSES ON THE ACTIVITIES COVERED BY THIS PERMIT, AS REQUIRED BY THE 

AIR QUALITY CONTROL COMMISSION REGULATION NO.1, SECTION III. D. 1. b. THIS SOURCE IS 

SUBJECT TO THE FOLLOWING EMISSION GUIDELINES: 

a. Mining and Processing Activities - Visible emissions not to exceed 20%, no off-property transport of 

visible emissions. 

b. Haul Roads - No off-property transport of visible emissions shall apply to on-site haul roads, the nuisance 

guidelines shall apply to off-site haul roads. 

c. Haul Trucks - No off-property transport of visible emissions. Mud and dirt carry-out on all haul trucks 

leaving the facility shall be minimized. Deposition of mud and dirt before entering onto improved public 

streets and roads shall be prevented, as necessary to control fugitive dust emissions. 

Control Measures

Refer to the control measures under BACT condition. 
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

page 24 Air Pollution Control Division

101/0252/999 ver. 2/00 

DRAFT 

PERMIT 

ATTACHMENT C

EMISSION SOURCES REQUIRED TO BE STACK TESTED 

1. Raw materials crushers. 

2. Preheater / precalciner / kiln / raw mill. 

3. Clinker cooler. 

4. Coal mill. 

5. Cement finish mills. 

6. Representative baghouses (at least one in five) identified in the protocol and approved by the Division.
GCC Rio Grande, Inc. 

Permit No. 98PB0893 

Initial Approval - Modification-3 Colorado Department of Public Health and Environment 

page 25 Air Pollution Control Division

101/0252/999 ver. 2/00 

DRAFT 

PERMIT 

GENERAL TERMS AND CONDITIONS: (IMPORTANT! READ ITEMS 5,6,7 AND 8)

1. This permit is issued in reliance upon the accuracy and completeness of information supplied by the 

applicant and is conditioned upon conduct of the activity, or construction, installation and operation of the 

source, in accordance with this information and with representations made by the applicant or applicant's 

agents. It is valid only for the equipment and operations or activity specifically identified on the permit. 

2. Unless specifically stated otherwise, the general and specific conditions contained in this permit have been 

determined by the APCD to be necessary to assure compliance with the provisions of Section 25-7-

114.5(7)(a), C.R.S. 

3. Each and every condition of this permit is a material part hereof and is not severable. Any challenge to or 

appeal of, a condition hereof shall constitute a rejection of the entire permit and upon such occurrence, this 

permit shall be deemed denied ab initio. This permit may be revoked at any time prior to final approval by 

the Air Pollution Control Division (APCD) on grounds set forth in the Colorado Air Quality Control Act 

and regulations of the Air Quality Control Commission (AQCC), including failure to meet any express term 

or condition of the permit. If the Division denies a permit, conditions imposed upon a permit are contested 

by the applicant, or the Division revokes a permit, the applicant or owner or operator of a source may 

request a hearing before the AQCC for review of the Division’s action. 

4. This permit and any required attachments must be retained and made available for inspection upon request 

at the location set forth herein. With respect to a portable source that is moved to a new location, a copy of 

the Relocation Notice (required by law to be submitted to the APCD whenever a portable source is 

relocated) should be attached to this permit. The permit may be reissued to a new owner by the APCD as 

provided in AQCC Regulation No. 3, Part B, Section III. B. upon a request for transfer of ownership and 

the submittal of a revised APEN and the required fee. 

5. Issuance (initial approval) of an emission permit does not provide "final" authority for this activity or 

operation of this source. Final approval of the permit must be secured from the APCD in writing in 

accordance with the provisions of 25-7-114.5(12)(a) C.R.S. and AQCC Regulation No. 3, Part B, Section 

IV. H. Final approval cannot be granted until the operation or activity commences and has been verified by 

the APCD as conforming in all respects with the conditions of the permit. If the APCD so determines, it 

will provide written documentation of such final approval, which does constitute "final" authority to 

operate. Compliance with the permit conditions must be demonstrated within 180 days after 

commencement of operation.

6. THIS PERMIT AUTOMATICALLY EXPIRES IF you (1) do not commence construction or operation 

within 18 months after either the date of issuance of this permit or the date on which such construction or 

activity was scheduled to commence as set forth in the permit, whichever is later; (2) discontinue 

construction for a period of 18 months or more; or (3) do not complete construction within a reasonable 

time of the estimated completion date. Extensions of the expiration date may be granted by the APCD upon 

a showing of good cause by the permittee prior to the expiration date. 

7. YOU MUST notify the APCD at least thirty days (fifteen days for portable sources) prior to 

commencement of the permitted operation or activity. Failure to do so is a violation of Section 25-7-

114.5(12)(a), C.R.S. and AQCC Regulation No. 3, Part B, Section IV. H. 1., and can result in the 

revocation of the permit. You must demonstrate compliance with the permit conditions within 180 days 

after commencement of operation as stated in condition 5.

8. Section 25-7-114.7(2)(a), C.R.S. requires that all sources required to file an Air Pollution Emission Notice 

(APEN) must pay an annual fee to cover the costs of inspections and administration. If a source or activity 

is to be discontinued, the owner must notify the Division in writing requesting a cancellation of the permit. 

Upon notification, annual fee billing will terminate. 

9. Violation of the terms of a permit or of the provisions of the Colorado Air Pollution Prevention and control 

Act or the regulations of the AQCC may result in administrative, civil or criminal enforcement actions 

under Sections 25-7-115 (enforcement), -121 (injunctions), -122 (civil penalties), -122.1 (criminal 

penalties), C.R.S.