AIR QUALITY DIVISION (2024)

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AIR QUALITY DIVISION

Environmental Programs Department

Southern Ute Indian Tribe

PO Box 737 MS#84

Ignacio, CO 81137

Phone 970-563-4705

http://www.southernute-nsn.gov/environmental-programs/air-quality

July 21, 2025

Mr. Ethan Hinkley

Air Quality Compliance Manager

Red Cedar Gathering Company

125 Mercado St., Suite 201

Durango, CO 81301

RE: Part 70 Operating Permit – Permit Renewal

Title V Permit # V-SUIT-0037-2024.00

Red Cedar Gathering Company

Homestead Compressor Station

Mr. Hinkley,

The Southern Ute Indian Tribe Air Quality Division (AQD) has completed its review of Red Cedar

Gathering Company’s (Red Cedar) request to renew a Title V Permit to Operate, pursuant to the Title V

Operating Permit Program at 40 CFR Part 70, for the Homestead Compressor Station.

Based on the information submitted in Red Cedar’s application, the AQD hereby issues the enclosed

Title V Permit to Operate. The final permit will become effective on July 21, 2025.

A 30-day public comment period was held from February 7, 2025, to March 9, 2025. The AQD received

comments from Red Cedar during this time and no comments were received from the public, affected

states, or tribes. Following the 30-day public comment period, the AQD did not make the requested

changes. A response to comments document is attached below for reference.

A 45-day Administrative Review period at EPA Region 8 was held from June 4, 2025, to July 19, 2025.

No comments were received from EPA Region 8 during this review period.

Pursuant to RAC §2-109(8), within 60 days after the final permit has been issued, the applicant, any person

who participated in the public comment process and is aggrieved by the action, and any other person who

could obtain judicial review of that action under applicable law, may appeal to the Environmental

Commission in accordance with the Southern Ute Indian Tribe/State of Colorado Environmental

Commission’s Reservation Air Code (RAC) and the Commission’s Procedural Rules. Additionally, the

regulations at RAC §2-109(7) specify that any person may petition the EPA Administrator within 60 days

after the expiration of the Administrator’s 45-day review period to make an objection that the permit

would not be in compliance with applicable requirements. Any such petition must be based only on

objections to the permit that were raised with reasonable specificity during the public comment period

unless the petitioner demonstrates that it was impracticable to raise such objections within such period, or

unless the grounds for such objections arose after such period.

If you have any questions concerning the enclosed permit, please feel free to contact me.

Sincerely,

Mark Lamoreaux

Air Quality Scientist II - Permitting

Southern Ute Indian Tribe

(970) 563-2273

mlamoreaux@southernute-nsn.gov

Cc: US EPA Region 8 - r8airpermitting@epa.gov

AIR QUALITY DIVISION

ENVIRONMENTAL PROGRAMS DEPARTMENT

SOUTHERN UTE INDIAN TRIBE

PO BOX 737, MS 84, IGNACIO, CO 81137

(970) 563 – 4705 ∙ (970) 563 – 0384 FAX

July 21, 2025

Response to Comments Document

Operator: Red Cedar Gathering Company

Facility: Diamondback, Homestead, and Worford Ridge Compressor Stations

Permit Action: Title V Operating Permit Renewals

Comments From Red Cedar Gathering Company Received on Draft Title V Operating

Permits V-SUIT-0018-2024.00, V-SUIT-0037-2024.00, and V-SUIT-0046-2024.00

I. Permit Provision III.2.1.: 40 CFR Part 63, Subpart HH – National Emission Standards

for Hazardous Air Pollutants From Oil and Natural Gas Production Facilities [40 CFR

63.760 - 63.779, RAC 4-103]

Comments:

 Provision III.2.1.1.

Comment #1

- The requirement that the gas temperature and pressure recorded with the gas sample must

be used to determine annual emissions creates a situation that may not be the most

representative of actual annual operating conditions. Using gas temperature and pressure

recorded at the time of the gas sample provides an accurate emission estimate at the time of

the sample. However, operating conditions change during the course of a calendar year. If

annual average gas temperature and pressure data exists for a facility, using these values

will provide a more accurate actual emission estimate for a calendar year. Additionally, in

EPA’s approval for the use of ProMax as an alternative to the GRI GLYCalc model they

state that “Inputs to the ProMax software shall include the parameters listed below, which

must be representative of the actual operating conditions of the glycol dehydration unit”. An

annual average of the gas temperature and pressure are going to be more representative of

the actual operating conditions of the dehydration unit than those of a spot sample.

Comment #2

- As an example in other similar requirements, differential pressure across engine catalysts,

and even emission testing, can be based on the average monitored data. The pressure drop

reading can be a one-time measurement on that day, the average of performance test runs

performed on that day, or an average of all the measurements on that day if continuous

readings are taken.

Comment #3

- Red Cedar is not in control of the information that the laboratory conducting our gas

analysis includes in the gas analysis report. Requiring the analysis include the gas

temperature and pressure at which the sample was taken creates a potential compliance

issue that Red Cedar does not fully control.

- Suggested language: The permittee must obtain an extended wet gas analysis of the inlet

gas stream at least once per calendar year. The gas sample shall be taken at a point prior to

where the gas enters the dehydration system contact tower. The analysis shall include the gas

temperature and pressure at which the sample was taken shall be recorded. The gas analysis

results and corresponding temperature and pressure representative of actual operating

conditions during the calendar year documented during collection of the gas sample must be

used to determine the actual average benzene emissions annually, in accordance with

63.772(b)(2)(i) or (ii). If electing to make this demonstration according to 63.772(b)(2)(i),

using GRI-GLYCalc model, the permittee shall perform each model run using a single gas

analysis and the corresponding temperature and pressure documented during the collection

of the gas sample.

AQD’s Response:

For the reasons listed below, the AQD did not make the suggested changes.

AQD’s Response to Comment #1:

- The AQD agrees with Red Cedar that using the gas temperature and pressure recorded at

the time of the extended gas analysis sample provides an accurate emissions estimate at the

time of the sample. The AQD also agrees that operating conditions change throughout the

year. However, the AQD does not agree with Red Cedar that the averaging of available

temperature and pressure data represent a more accurate estimation of annual emissions.

First, this assertion does not take into consideration that gas composition data fluctuates

throughout the year, and that the emissions of benzene from the reboiler still vent, at any

given time, are directly correlated to the corresponding wet gas inlet temperature and

pressure of the glycol dehydration unit. Therefore, averaging certain data parameters and not

others may not result in the most accurate emissions estimates because averaged data could

increase the temperature and pressure model input values above the actual operating values

for portions of the year, and consequently, result in GLYCalc estimating benzene emissions

to be lower than in actuality. Additionally, if temperature and pressure data were only

available, or only averaged, for certain months of the year, this limited data set could

potentially result in average temperature and pressure model inputs that are not a good

representation of the actual values throughout the year.

Secondly, this approach would not yield inputs to the GRI-GLYCalc (GLYCalc) model that

are representative of actual operating conditions, as required by § 63.772(b)(2)(i), because at

no time during the year would the averaged parameters match actual operating conditions.

Conversely, using the actual operating parameters from the time of a gas analysis as inputs to

the model (i.e., the gas analysis and corresponding temperature and pressure), would meet

the requirement to use input model values representative of actual operating conditions. This

is further supported by the GLYCalc Version 4.0 User’s Manual which requires certain

model inputs, including the wet-gas (or absorber) temperature and pressure recorded at the

time of the wet gas sample.

Third, a main goal of the AQD’s enhanced reporting, recordkeeping, and monitoring

language is to establish a standardized methodology for accurately estimating benzene

emissions for documenting eligibility to the benzene exemption using the GLYCalc (or

ProMax) models.

The methodology proposed by Red Cedar does not align with this goal. Absent a

standardized methodology for determining eligibility to the benzene exemption, the permittee

has complete discretion in choosing which data to use and in choosing to average certain data

and not others. This approach is too non-standardized to provide consistency in the way

emissions are estimated by different permittees and at different regulated facilities, based on

available data, and accordingly, is inconsistent with the intent of § 63.772(b)(2)(i) to use

inputs to the model “representative of actual operating conditions”.

To allow an option for permittees to use multiple data points to better represent operating

conditions throughout the year, the AQD allows a permittee to average the model results of

multiple individual GLYCalc runs prepared using the gas analysis and corresponding

temperature and pressure. This option is consistent with the requirement to use inputs

representative of actual operating conditions, and it will yield an accurate emissions average,

because each individual run provides an accurate snapshot of emissions during actual

operating conditions, similar to a stack test. The method is also consistent with methodology

established for glycol dehydration units in several New Source Review permits issued by

EPA Region 8 for demonstrating 12-month rolling benzene emissions averages.

The AQD has conferred with EPA on these questions. EPA explained that the AQD’s

required methodology of using the gas temperature and pressure corresponding to the gas

analysis aligns with the intent of the rule in using inputs to the model representative of actual

operating conditions. The EPA similarly finds that Red Cedar’s requested method of

averaging would not be representative of actual operating conditions. The EPA also finds that

the AQD’s option for allowing the averaging of multiple gas analyses provides an accurate

method of estimating emissions, that is consistent with the requirement of using inputs to the

model representative of actual operating conditions, while also providing permittees the

flexibility to collect and use, in their estimations, multiple gas analyses from throughout the

year.

If Red Cedar is observing modeled benzene values that show a source above the 0.9 Mg

exemption levels using the methodology prescribed by the AQD, the AQD recommends Red

Cedar default to complying with the area source standards to avoid potential non-compliance.

AQD’s Response to Comment #2:

-Red Cedar provides two examples of data averaging used in other emissions calculation

applications, in support of their request to use averaged gas temperature and pressure as data

values that are more representative of actual operating conditions than those values recorded

at the time of a gas sampling event. These two examples are (1), differential pressure across

an engine catalyst and (2) the averaging of multiple engine emission testing results. The

AQD does not find these examples to support Red Cedar’s position because there is a distinct

difference between these data values and the averaging of glycol dehydration unit gas

temperatures and pressures. The most distinct difference is that the two data examples

provided by Red Cedar are data outputs, and not data inputs used in emission models or

emissions calculations for estimating emissions. For example, the differential pressure across

the catalyst is a measured data output that is used only as an indicator of operating conditions

that corresponded with a control device operating effectively in meeting emissions

limitations during an emissions testing event. This parameter is not used as input for

calculating estimated emissions. Next, the averaged value of three consecutive emission test

results is also a data output and is an example of using the outputs of three emissions tests

conducted during actual operating conditions and with corresponding data inputs, to calculate

an average emissions value. This latter example is, in concept, very similar to the option

provided by the AQD for averaging multiple modeled emissions runs, prepared using the

actual operating conditions data inputs recorded at the time of the gas sampling.

AQD’s Response to Comment #3:

- The AQD does not agree with Red Cedar’s assertion that the ability of a laboratory to

correctly list the temperature and pressure reading on a gas analysis report is a potential

compliance issue that Red Cedar cannot control. The laboratory conducting the gas analysis

should have a Quality Assurance Project Plan specifying how to ensure accuracy in

conducting the analysis and for listing data correctly on a final report. Furthermore, if Red

Cedar is questioning the ability of a laboratory to correctly report the temperature and

pressure recorded at the time of the gas sampling, it seems this could also bring into question

the accuracy of the gas analysis results transposed by the laboratory into the report, and

consequently, the accuracy of GLYCalc model runs used by Red Cedar for demonstrating

applicability and compliance with MACT Subpart HH. As an internal quality assurance

check, Red Cedar could easily verify the accuracy of gas temperatures and pressures listed on

a gas analysis report by recording their own record of the temperature and pressure at the

time of gas sample collections and comparing those values. Additionally, it is Red Cedar’s

responsibility to provide accurate records, including the gas analysis. If Red Cedar believes

their current laboratory is completing unreliable work, Red Cedar should consider

contracting with a more reliable company.

Southern Ute Indian Tribe

Air Quality Division

Title V Operating Permit

Southern Ute Indian Tribe

Environmental Programs Department

Air Quality Division

71 Mike Frost Way

Ignacio, Colorado 81137

AIR POLLUTION CONTROL

TITLE V PERMIT TO OPERATE

In accordance with the provisions of Title V of the Clean Air Act (42 U.S.C. 7661-7661f) and Part

1, Article II of the Southern Ute Indian Tribe/State of Colorado Environmental Commission’s

Reservation Air Code (RAC) and applicable rules and regulations,

Red Cedar Gathering Company

Homestead Compressor Station

is authorized to operate air emission units and to conduct other air pollutant emitting activities in

accordance with the conditions listed in this permit.

This source is authorized to operate at the following location:

Southern Ute Indian Reservation

Section 4, T32N, R8W

La Plata County, Colorado

Terms not otherwise defined in this permit have the meaning assigned to them in the referenced

regulations. All terms and conditions of the permit are enforceable by the Tribe and citizens under

the Clean Air Act.

Daniel Powers, Air Quality Division Head

Environmental Programs Department

Southern Ute Indian Tribe

AIR POLLUTION CONTROL

TITLE V PERMIT TO OPERATE

Red Cedar Gathering Company

Homestead Compressor Station

SUIT Account Identification Code: 2-024

Permit Number: V-SUIT-0037-2024.00

[Replaces Permit No.: V-SUIT-0037-2019.00]

Issue Date:

Revised Date:

Expiration Date:

July 21, 2025

N/A

July 21, 2030

The SUIT account identification code and permit number cited above should be referenced in future

correspondence regarding this facility.

Permit Issuance History

DATE

TYPE OF

ACTION

DESCRIPTION OF ACTION

PERMIT

NUMBER

January 2004

Permit Issued

Initial Part 71 Permit Issued

# V-SU-0037-04.00

May 2006

Revision

Administrative Amendment

# V-SU-0037-04.01

August 17, 2007

Revision

Administrative Amendment

# V-SU-0037-04.02

January 2008

Revision

Administrative Amendment

# V-SU-0037-04.03

June 2008

Revision

Administrative Amendment

# V-SU-0037-04.04

st

September 2009

Renewal

1 Renewal Permit Issued

# V-SU-0037-08.00

August 2010

Revision

Minor Permit Revision

# V-SU-0037-08.01

January 31, 2014

Permit Issued

Initial Part 70 Permit Issued

# V-SUIT-0037-2014.00

June 11, 2015

Revision

Minor Permit Revision

# V-SUIT-0037-2014.01

April 25, 2016

Revision

Administrative and Minor Permit Revision

 II.B.6.c Added 40 CFR 63.774(c)

Subpart HH compliance demonstration

plan

 II.C. Changed emission unit ID number

to match with newly added engine

# V-SUIT-0037-2014.02

June 14, 2019

Renewal

1st Part 70 Permit Renewal

# V-SUIT-0037-2019.00

July 21, 2025

Renewal

2nd Part 70 Permit Renewal

# V-SUIT-0037-2024.00

Table of Contents

Abbreviations and Acronyms ................................................................................................................................. 3

Section I – Source Information and Emission Unit Identification ............................................................................ 6

Source Information ..........................................................................................................................................6

Source Emission Points ....................................................................................................................................7

Section II – General Requirements ......................................................................................................................... 8

Title V Administrative Requirements ...............................................................................................................8

1.1.

Annual Fee Payment [RAC 2-110(1)(h) and RAC 2-118] ........................................................................ 8

1.2.

Compliance Requirements .................................................................................................................. 10

1.3.

Duty to Provide and Supplement Information [RAC 2-110(7)(e), 2-106(5), and 2-124] ....................11

1.4.

Submissions [RAC 2-105] .....................................................................................................................12

1.5.

Severability Clause [RAC 1-106 and RAC 2-110(1)(f)] .........................................................................12

1.6.

Permit Actions [RAC 2-110(3)] ............................................................................................................ 12

1.7.

Administrative Permit Revision [RAC 2-111(2)] .................................................................................13

1.8.

Minor Permit Revisions [RAC 2-111(3)] ..............................................................................................13

1.9.

Significant Permit Revisions [RAC 2-111(4)] .......................................................................................14

1.10.

Permit Reopenings, Revocations and Reissuances, and Terminations [RAC 2-112] .........................14

1.11.

Property Rights [RAC 2-110(3)(e)] .......................................................................................................16

1.12.

Inspection and Entry [RAC 2-110(9)(b)] ..............................................................................................16

1.13.

[Reserved] ............................................................................................................................................16

1.14.

Permit Transfers [RAC 2-113] ..............................................................................................................16

1.15.

Off-Permit Changes [RAC 2-116(2)]..................................................................................................... 16

1.16.

Permit Expiration and Renewal ..........................................................................................................17

Facility-Wide Requirements...........................................................................................................................18

2.1.

General Recordkeeping Requirements [RAC 2-110(6)] ...................................................................... 18

2.2.

General Reporting Requirements .......................................................................................................19

2.3.

Alternative Operating Scenarios [RAC 2-110(8)] ................................................................................20

2.4.

Permit Shield [RAC 2-110(10)(c)].........................................................................................................22

2.5.

Stratospheric Ozone and Climate Protection [40 CFR Part 82] ..........................................................22

Section III – Site Specific Permit Terms ................................................................................................................ 23

Reserved - New Source Performance Standards (NSPS) and 40 CFR Part 60 ................................................23

National Emission Standards for Hazardous Air Pollutants (NESHAP) and 40 CFR Part 63 ...........................23

2.1.

40 CFR Part 63, Subpart HH - National Emission Standards for Hazardous Air Pollutants from Oil

and Natural Gas Production Facilities [40 CFR 63.760 – 63.779 and RAC 4-103] ............................................. 23

2.2.

40 CFR Part 63, Subpart ZZZZ – National Emission Standards for Hazardous Air Pollutants for

Stationary Reciprocating Internal Combustion Engines [40 CFR 63.6580 – 63.6675 and RAC 4-103] .............24

Reserved – Tribal Minor New Source Review ................................................................................................31

Reserved – Prevention of Significant Deterioration Requirements ............................................................... 31

Reserved – Consent Decree Requirements ....................................................................................................31

Reserved – Compliance Assurance Monitoring (CAM) Requirements ...........................................................31

1

Enhanced Monitoring, Recordkeeping, and Reporting..................................................................................31

Section IV – Appendix .......................................................................................................................................... 32

Inspection Information ..................................................................................................................................32

1.1.

Driving Directions: ...............................................................................................................................32

1.2.

Global Positioning System (GPS): .......................................................................................................32

1.3.

Safety Considerations: ........................................................................................................................32

2

Abbreviations and Acronyms

4SLB

4SRB

AFS

AQD

bbl

BACT

CAA

CAM

CEMS

CFR

CMS

COMS

CO

CO2

dscf

dscm

EPA

gal

GPM

H 2S

HAP

hr

ID

kg

lbs

MACT

Mg

MMBtu

MMSCFD

mo

NESHAP

NMHC

NOx

NSPS

NSR

pH

PM

PM10

ppbvd

ppm

ppmvd

PSD

PTE

psi

psia

RAC

RICE

RMP

scf

scfm

SI

SO2

SUIT

tpy

Tribe

Four-Stroke Lean-Burn

Four-Stroke Rich-Burn

Air Facility System database

Southern Ute Indian Tribe’s Air Quality Division

Barrels

Best Available Control Technology

Clean Air Act [42 U.S.C. Section 7401 et seq.]

Compliance Assurance Monitoring

Continuous Emission Monitoring System

Code of Federal Regulations

Continuous Monitoring System (includes COMS, CEMS and diluent monitoring)

Continuous Opacity Monitoring System

Carbon monoxide

Carbon dioxide

Dry standard cubic foot

Dry standard cubic meter

United States Environmental Protection Agency

Gallon

Gallons per minute

Hydrogen sulfide

Hazardous Air Pollutant

Hour

Identification Number

Kilogram

Pounds

Maximum Achievable Control Technology

Megagram

Million British Thermal Units

Million standard cubic feet per day

Month

National Emission Standards for Hazardous Air Pollutants

Non-methane hydrocarbons

Nitrogen Oxides

New Source Performance Standard

New Source Review

Negative logarithm of effective hydrogen ion concentration (acidity)

Particulate Matter

Particulate matter less than 10 microns in diameter

Parts per billion by volume, dry

Parts per million

Parts per million by volume, dry

Prevention of Significant Deterioration

Potential to Emit

Pounds per square inch

Pounds per square inch absolute

Southern Ute Indian Tribe/State of Colorado Environmental Commission’s Reservation

Air Code

Reciprocating Internal Combustion Engine

Risk Management Plan

Standard cubic feet

Standard cubic feet per minute

Spark Ignition

Sulfur Dioxide

Southern Ute Indian Tribe

Ton(s) Per Year

Southern Ute Indian Tribe

3

US EPA

VOC

United States Environmental Protection Agency

Volatile Organic Compounds

4

Table of Figures

Table 1 - Emission Units................................................................................................................. 7

Table 2 - Insignificant Emission Units ........................................................................................... 7

5

Section I – Source Information and Emission Unit Identification

Source Information

Owner Name:

Red Cedar Gathering Company

Facility Name:

Homestead Compressor Station

Facility Location:

Section 4, T32N, R8W

Latitude:

37.044872 °N

Longitude:

State:

-107.731283 °W

Colorado

County:

La Plata

Responsible Official:

President – Chief Operating Officer

SIC Code:

1311

ICIS Identification Number:

SU00000008067U0018

EPA Facility Registry ID:

110020496346

Other Clean Air Act Permits

None

Process Description:

The Homestead Compressor Station, owned and operated by Red Cedar Gathering Company, is

located in Southwestern Colorado within the exterior boundaries of the Southern Ute Indian

Reservation. Homestead is a production field facility prior to the point of custody transfer.

Natural gas product is provided to Homestead from several upstream wells and compression

stations. The three (3) compressor engines pull gas from the low-pressure pipelines at

approximately 30 psi and compress that gas to approximately 350 psi. The gas is then processed

through the dehydration unit and discharged into Red Cedar’s mid-pressure pipeline. The station

can process 18-20 Mscf/day. The facility does not extract natural gas liquids from field gas nor

fractionate mixed NGL’s to natural gas products. The facility has storage vessels, but none with

the potential for flash emissions. Homestead’s primary emitters consist of three (3) compressor

engines and one glycol dehydration unit. The facility has several heaters, and tanks that qualify

as insignificant emission units. Homestead does not engage in pigging operations.

6

Source Emission Points

Table 1 - Emission Units

Emission

Unit ID

Control

Equipment

Description

Waukesha L7042GL (4SLB SI) Natural Gas-Fired Compressor Engine

1,377 Name Plate Rated HP

C-201

Serial No.

400439

Install Date:

11/19/2020

C-202

Serial No.

C-11530/1

Install Date:

07/06/2023

C-203

Serial No.

C-11520/1

Install Date:

11/15/2022

None

Ford ESG-642 (4SRB SI) Natural Gas-Fired Generator Engine

61 Name Plate Rated HP

G-102

Serial No.

02-03-003318

Install Date:

None

06/01/2015

PESCO Tri-Ethylene Glycol (TEG) Dehydrator

25 (MMscf/day)

X-301

Serial No.

N/A

Install Date:

None

06/01/2010

Table 2 - Insignificant Emission Units

Emission

Unit ID

Amount

Description

Size

Units

X-301a

H-501

H-502

H-504

H-101

H-401A, 401B

TK-501

TK-502

TK-503

TK-504

TK-505

TK-506

TK-507, 508

FUG

1

1

1

1

1

2

1

1

1

1

1

1

2

N/A

TEG Reboiler

Tank Heater (TK-501)

Tank Heater (TK-502)

Tank Heater (TK-504)

Catalytic Heater (Inlet Slug Catcher V-101)

Catalytic Heater (Fuel Gas Skid)

Production Water Tank

Waste Oil Drain Tank

Glycol Still Column Vent Tank (X-301)

Clean Water Blowcase Tank

TEG Storage Tank

Lube Oil Storage Tank

Engine Coolant Storage Tank

Fugitive Emissions

0.50

0.325

0.325

0.325

0.008

0.018

15,750

6,615

500

6,615

500

1,800

500

N/A

MMBtu/hr

MMBtu/hr

MMBtu/hr

MMBtu/hr

MMBtu/hr

MMBtu/hr

Gallons

Gallons

Gallons

Gallons

Gallons

Gallons

Gallons

N/A

7

Section II – General Requirements

Title V Administrative Requirements

1.1. Annual Fee Payment [RAC 2-110(1)(h) and RAC 2-118]

1.1.1. An annual operating permit emission fee shall be paid to the Tribe by the

permittee.

[RAC 2-118(2)]

1.1.2. The permittee shall pay the annual permit fee each year no later than April 1 st for

the preceding calendar year.

[RAC 2-118(2)]

1.1.3. Fee payments shall be remitted in the form of a money order, bank draft, certified

check, corporate check, or electronic funds transfer payable to the Southern Ute

Indian Tribe and sent or delivered by the United States Postal Service c/o

Environmental Programs Department Part 70 Program, P.O. Box 737 MS #84,

Ignacio, Colorado 81137; or by common carrier (such as UPS or FedEx) c/o

Environmental Programs Department Part 70 Program, 398 Ouray Drive, Ignacio,

Colorado 81137.

[RAC 2-118(4)(a)]

1.1.4. The permittee shall send an updated fee calculation worksheet submitted annually

by the same deadline as required for fee payment to the address listed in the

Submissions section of this permit.

[RAC 2-118]

1.1.5. The permittee shall submit the initial fee calculation work sheet using the most

recent form provided by the Tribe.

[RAC 2-118(2)(c)]

1.1.6. Basis for calculating annual fee:

1.1.6.1.

Subtotal annual fees shall be calculated by multiplying the applicable

emission fee set pursuant to RAC §2-119(1) of this code times the total

tons of actual emissions for each fee pollutant. In lieu of actual emissions,

annual fees may be calculated based on the potential to emit for each fee

pollutant. Emissions of any regulated air pollutant that already are

included in the fee calculation under a category of regulated pollutant,

such as a federally listed hazardous air pollutant that is already accounted

for as a VOC or as PM10, shall be counted only once in determining the

source’s actual emissions.

[RAC 2-119(2)(a)]

8

1.1.6.1.1.

“Actual emissions” means the actual rate of emissions in tpy of

any fee pollutant (for fee calculation) emitted from a Title V

source over the preceding calendar year or any other period

determined by the Tribe to be more representative of normal

operation and consistent with the fee schedule adopted by the Tribe

and approved by the Administrator. Actual emissions shall be

calculated using each emissions units actual operating hours,

production rates, in-place control equipment, and types of

materials processed, stored, or combusted during the preceding

calendar year or other period used for this calculation.

[RAC 1-103(2)]

1.1.6.1.2.

Actual emissions shall be computed using compliance methods

required by the permit.

[RAC 2-118(1)(b)]

1.1.6.1.3.

If actual emissions cannot be determined using the compliance

methods in the permit, the permittee shall use other federally

recognized procedures.

[RAC 2-118(1)(b)]

1.1.6.2.

The total annual fee submitted shall be the greater of the applicable

minimum fee or the sum of subtotal annual fees for all fee pollutants

emitted from the source.

[RAC 2-119(2)(b)]

[Explanatory note: The applicable emission fee amount and applicable minimum fee (if necessary)

are revised each calendar year to account for inflation, and they are available from AQD prior to

the start of each calendar year.]

1.1.6.3.

The permittee shall exclude the following emissions from the calculation

of fees:

1.1.6.3.1.

The amount of actual emissions of any one fee pollutant that the

source emits in excess of 4,000 tpy.

1.1.6.3.2.

Any emissions that come from insignificant activities not required

in a permit application pursuant to RAC §2-106(4).

[RAC 1-103(2)(c)]

1.1.7. Annual fee calculation worksheets shall be certified as to truth, accuracy, and

completeness by a responsible official.

[RAC 2-105 and RAC 2-118(2)(c)]

9

1.1.8. Failure of the permittee to pay fees by the due date shall subject the permittee to

assessment of penalties and interest in accordance with RAC §2-118(6).

[RAC 2-118(6)]

1.1.9. When notified by the Tribe of underpayment of fees, the permittee shall remit full

payment within 30 days of receipt of an invoice from the Tribe.

[RAC 2-119(3)(b)]

1.1.10. A permittee who thinks a Tribe assessed fee is in error and who wishes to

challenge such fee shall provide a written explanation of the alleged error to the

Tribe along with full payment of the assessed fee.

[RAC 2-119(3)(c)]

1.2. Compliance Requirements

1.2.1. Compliance with the Permit

1.2.1.1.

The permittee must comply with all conditions of this part 70 permit. Any

permit noncompliance with federally enforceable or Commission-only

permit conditions constitutes a violation of the RAC and Clean Air Act

and is grounds for enforcement action; for permit termination, revocation

and reissuance, or revision; or for denial of a permit renewal application.

[RAC 2-110(3)(a)]

1.2.1.2.

It shall not be a defense for a permittee in an enforcement action that it

would have been necessary to halt or reduce the permitted activity in order

to maintain compliance with the conditions of this permit.

[RAC 2-110(3)(b)]

1.2.1.3.

All terms and conditions of this permit which are required under the Clean

Air Act or under any of its applicable requirements, including any

provisions designed to limit a source’s potential to emit, are enforceable

by the Administrator and citizens under the Clean Air Act, except terms

and conditions the permit specifically designates as not being federally

enforceable under the Clean Air Act that are not required under the Clean

Air Act or under any of its applicable requirements. Terms and conditions

so designated are not subject to the requirements of RAC §§2-108, 2-111,

2-112, other than those contained in this paragraph.

[RAC 2-110(3)(f)]

1.2.1.4.

This permit, or the filing or approval of a compliance plan, does not

relieve any person from civil or criminal liability for failure to comply

with the provisions of the RAC and the Clean Air Act, applicable

regulations thereunder, and any other applicable law or regulation.

[RAC 2-110(3)(g)]

10

1.2.1.5.

For the purpose of submitting compliance certifications in accordance

with the Compliance Certifications condition below of this permit, or

establishing whether or not a person has violated or is in violation of any

requirement of this permit, nothing shall preclude the use, including the

exclusive use, of any credible evidence or information, relevant to whether

a source would have been in compliance with applicable requirements if

the appropriate performance or compliance test or procedure had been

performed.

[Section 113(a) and 113(e)(1) of the Act, 40 CFR §§51.212, 52.12, 52.33, 60.11(g), and 61.12]

1.2.2. Compliance Certifications

1.2.2.1.

The permittee shall submit to the Tribe and the Administrator an annual

certification of compliance which shall certify the source’s compliance

status with all permit terms and conditions and all applicable requirements

relevant to the source, including those related to emission limitations,

standards, or work practices. The compliance certification shall be

certified as to truth, accuracy, and completeness by a responsible official

consistent with RAC §2-110(9)(a). The certification of compliance shall

be submitted annually by April 1st and shall cover the preceding calendar

year in which the certification of compliance is due, except that the first

annual certification of compliance will cover the period from the issuance

date of this permit through December 31st of the same year.

[RAC 2-110(9)(c)]

1.2.3. Compliance Schedule

1.2.3.1.

For applicable requirements with which the source is in compliance, the

source will continue to comply with such requirements.

[RAC 2-106(4)(l)(ii)]

1.2.3.2.

For applicable requirements that will become effective during the permit

term, the source shall meet such requirements on a timely basis.

[RAC 2-106(4)(l)(iii)]

1.3. Duty to Provide and Supplement Information [RAC 2-110(7)(e), 2-106(5), and 2124]

1.3.1. The permittee shall furnish to the Tribe, within the period specified by the Tribe,

any information that the Tribe request in writing to determine whether cause

exists for reopening and revising, revoking, and reissuing, or terminating the

permit, or to determine compliance with the permit. Upon request, the permittee

shall also furnish to the Tribe copies of records that are required to be kept by the

permit, including information claimed to be confidential. Information claimed to

11

be confidential must be accompanied by a claim of confidentiality according to

the provisions of RAC 2-124.

[RAC 2-110(7)(e) and RAC 2-124]

1.3.2. The permittee, upon becoming aware that any relevant facts were omitted or

incorrect information was submitted in the permit application or in a supplemental

submittal, shall promptly submit such supplementary facts or corrected

information. In addition, a permittee shall provide additional information as

necessary to address any requirements that become applicable after the date a

complete application is filed, but prior to release of a draft permit.

[RAC 2-106(5)]

1.4. Submissions [RAC 2-105]

1.4.1. Any application, form, report, compliance certification, or other document

submitted by the permittee under this permit shall contain a certification by a

responsible official of truth, accuracy, and completeness. This certification shall

state that, based on information and belief formed after reasonable inquiry, the

statements and information in the document are true, accurate, and complete.

[Explanatory Note: The Tribe has developed a reporting form “CTAC” for certifying

truth, accuracy and completeness of part 70 submissions. The form may be found on the

AQD’s website (http://www.southernute-nsn.gov/environmental-programs/air-quality).]

1.4.2. Except where otherwise noted, any documents required to be submitted under this

permit, including reports, test data, monitoring data, notifications, compliance

certifications, fee calculation worksheets, and applications for renewals and

permit modifications shall be submitted:

by email at: airquality@southernute-nsn.gov

or by United States Postal Service:

Part 70 Program

Environmental Programs Department

Air Quality Division

P.O. Box 737 MS #84

Ignacio, Colorado 81137

or by Common Carrier:

Part 70 Program

Environmental Programs Department

Air Quality Division

398 Ouray Drive

Ignacio, CO 81137

1.5. Severability Clause [RAC 1-106 and RAC 2-110(1)(f)]

The provisions of this permit are severable, and in the event of any challenge to any portion

of this permit, or if any provision is held invalid, the remaining permit conditions shall

remain valid and in force.

1.6. Permit Actions [RAC 2-110(3)]

12

1.6.1. This permit may be modified, reopened and revised, revoked and reissued, or

terminated for cause.

[RAC 2-110(3)(c)]

1.6.2. The filing by the permittee of a request for a permit revision, reissuance, or

termination, or of a notification of planned changes or anticipated noncompliance

shall not stay any permit condition.

[RAC 2-110(3)(d)]

1.7. Administrative Permit Revision [RAC 2-111(2)]

1.7.1. The permittee may submit an application for an administrative permit revision as

defined in RAC §1-103.

[RAC 2-111(2)(a)]

1.7.2. The permittee may implement an administrative permit revision immediately

upon submittal of the request for the administrative revision.

[RAC 2-111(2)(c)]

[Note to permittee: If the provisions allowing for an administrative permit revision do not apply,

please contact the Air Quality Division for a determination of similarity prior to submitting your

request for an administrative permit revision.]

1.8. Minor Permit Revisions [RAC 2-111(3)]

1.8.1. The permittee may submit an application for a minor permit revision as defined in

RAC §1-103.

1.8.2. An application requesting the use of minor permit revision procedures shall meet

the requirements of RAC §2-106(4) and shall include the following:

1.8.2.1.

A description of the change, the emissions resulting from the change, and

any new applicable requirements that will apply if the change occurs;

1.8.2.2.

If changes are requested to the permit language, the permittee’s suggested

draft permit changes;

1.8.2.3.

Certification by a responsible official, consistent with RAC §2-105, that

the proposed revision meets the criteria for use of minor permit revision

procedures and a request that such procedures be used; and

1.8.2.4.

Completed forms for the Tribe to use to notify the Administrator and

affected programs as required under RAC §2-108.

13

1.8.2.5.

If the requested permit revision would affect existing compliance plans or

schedules, related progress reports, or certification of compliance

requirements, and an outline of such effects.

[RAC 2-111(3)(a)]

1.8.3. The permittee shall not submit multiple minor permit revision applications that

may conceal a larger revision that would not constitute a minor permit revision.

[RAC 2-111(3)(b)]

1.8.4. The permittee may make the change proposed in its minor permit revision

application immediately after it files such application, provided, however, for

sources that have previously utilized this provision during the term of the permit

and, on two or more occasions have failed to file a complete application, may

thereafter make the change only after the application is deemed complete. After

the permittee makes the change and until the Tribe takes any of the actions

specified in the following subsection, the permittee must comply with both the

applicable requirements governing the change and the proposed permit terms and

conditions. During this period, the permittee need not comply with the existing

permit terms and conditions it seeks to modify. If the permittee fails to comply

with its proposed permit terms and conditions during this period, however, the

existing permit terms and conditions it seeks to modify may be enforced against

it. The filing of a minor permit revision application does not authorize

construction or modification of a source under the NSR preconstruction permit

program. It is the permittee’s responsibility to determine if a preconstruction

permit is required prior to commencing construction, modification, or

reconstruction.

[RAC 2-111(3)(e)]

1.8.5. The permit shield under RAC §2-110(10) does not extend to minor permit

revisions.

[RAC 2-110(10)(d)]

1.9. Significant Permit Revisions [RAC 2-111(4)]

1.9.1. The permittee must request the use of significant permit revision procedures as

defined in RAC §1-103.

1.9.2. Significant permit revisions shall meet all requirements of the RAC for permit

issuance and renewal, including those for applications, review by the

Administrator and affected programs, and public participation.

[RAC 2-111(4), 2-109, and 2-106(3)]

1.10.

Permit Reopenings, Revocations and Reissuances, and Terminations [RAC 2112]

14

1.10.1. The permit may be reopened and revised for any of the reasons listed in the

paragraphs below. Alternatively, the permit may be revoked and reissued for the

reasons listed in the paragraphs below:

1.10.1.1.

Additional requirements under the Clean Air Act become applicable to a

major source with a remaining permit term of 3 or more years, provided

that the Tribe shall revise such permits to incorporate such additional

requirements no later than 18 months after promulgation of such

requirements, and no such reopening is required if the effective date of the

requirement is later than the permit expiration date unless the original

permit or any of its terms or conditions have been extended past the permit

expiration date pursuant to RAC §2-104(2)(b)(iii);

1.10.1.2.

Additional requirements (including excess emissions requirements)

become applicable to an affected source under the acid rain program.

Upon approval by the Administrator, excess emissions offset plans shall

be deemed to be incorporated into the permit;

1.10.1.3.

The Tribe or the Administrator determines that the permit contains a

material mistake or that inaccurate statements were made in establishing

the terms or conditions of the permit; or

1.10.1.4.

The Tribe or the Administrator determines that the permit must be revised

or revoked and reissued to assure compliance with applicable

requirements.

1.10.2. The permit may be terminated for any of the reasons listed below:

1.10.2.1.

The permittee fails to meet the requirements of an approved compliance

plan;

1.10.2.2.

The permittee has been in significant or repetitious noncompliance with

the operating permit terms or conditions;

1.10.2.3.

The permittee has exhibited a history of willful disregard for

environmental laws of any tribal or state authority, or of the United States;

1.10.2.4.

The permittee has knowingly misrepresented a material fact in any

application, record, report, plan, or other document filed or required to be

maintained under the permit;

1.10.2.5.

The permittee falsifies, tampers with, or renders inaccurate any monitoring

device or method required to be maintained under the permit;

1.10.2.6.

The permittee fails to pay fees required under RAC§§2-118 and 2-119; or

15

1.10.2.7.

1.11.

The Administrator has found that cause exists to terminate the permit.

Property Rights [RAC 2-110(3)(e)]

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

1.12.

Inspection and Entry [RAC 2-110(9)(b)]

Upon presentation of credentials and other documents as may be required by law, the

permittee shall allow authorized representatives of the Tribe or other authorized

representative to perform the following:

1.12.1. Enter upon the permittee’s premises where a source is located or emissionsrelated activity is conducted, or where records must be kept under the conditions

of the permit;

1.12.2. Have access to and copy, at reasonable times, any records that must be kept under

the conditions of the permit;

1.12.3. Inspect at reasonable times any facilities, equipment (including monitoring and air

pollution control equipment), practices, or operations regulated or required under

the permit; and

1.12.4. As authorized by the Clean Air Act, sample or monitor at reasonable times

substances or parameters for the purpose of assuring compliance with the permit

or applicable requirements.

1.13.

[Reserved]

1.14.

Permit Transfers [RAC 2-113]

1.14.1. This permit shall not be transferable, by operation of law or otherwise, from one

location to another or from one source to another, except that a permit may be

transferred from one location to another in the case of a portable source that has

notified the Tribe in advance of the transfer, pursuant to the RAC. A permit for a

source may be transferred from one person to another if the Tribe finds that the

transferee is capable of operating the source in compliance with the permit. This

transfer must be accomplished through an administrative permit revision in

accordance with the Administrative Permit Revisions section of this permit.

1.15.

Off-Permit Changes [RAC 2-116(2)]

16

1.15.1. The permittee is allowed to make, without a permit revision, certain changes that

are not addressed or prohibited by this permit provided that the following

requirements are met:

1.15.1.1.

Each such change meets all applicable requirements and shall not violate

any existing permit term or condition;

1.15.1.2.

Such changes are not subject to any requirements under title IV of the

Clean Air Act and are not modifications under title I of the Clean Air Act;

1.15.1.3.

Such changes are not subject to permit revision procedures under RAC §2111; and

1.15.1.4.

The permittee provides contemporaneous written notice to the Tribe and

the Administrator of each such change, except for changes that qualify as

insignificant activities. Such notice shall state when the change occurred

and shall describe the change, any resulting emissions change, pollutants

emitted, and any applicable requirement that would apply as a result of the

change.

[RAC 2-116(2)(a)]

1.15.2. The permit shield does not apply to changes made under this provision.

[RAC 2-110(10)(d)]

1.15.3. The permittee shall keep a record describing changes made at the source that

result in emissions of any regulated air pollutant subject to an applicable

requirement, but not otherwise regulated under the permit, and the emissions

resulting from those changes.

[RAC 2-116(2)(b)]

1.15.4. A copy of each off-permit change notification shall be made available to the Tribe

upon request.

[RAC 2-110(6)]

1.16.

Permit Expiration and Renewal

[RAC §§2-104(3), 2-106(2)(b), 2-107(7)(a), 2-107(7)(b), 2-110(1)(a), and 2-106(3)]

1.16.1. This permit shall expire five years from the issuance date of this permit.

[RAC 2-110(1)(a)]

1.16.2. Expiration of this permit terminates the permittee’s right to operate unless a

timely and complete permit renewal application has been submitted at least 6

months but not more than 18 months prior to the date of expiration of this permit.

[RAC 2-107(7)(b)]

17

1.16.3. If the permittee submits a timely and complete permit application for renewal,

consistent with RAC §2-106 but the Tribe has failed to issue or disapprove a

renewal permit before the end of the permit term, then the permit shall not expire

and all its terms and conditions shall remain in effect until the renewal permit has

been issued or disapproved.

[RAC 2-104(2)(b)]

1.16.4. The ability to operate under this permit shall cease if (1) the Tribe takes final

action to issue the permittee a renewal permit or deny the permittee a permit or

(2) the permittee fails to submit by the deadline specified in writing by the Tribe

any additional information identified as being needed to process the application.

[RAC 2-104(3)]

1.16.5. Renewal of this permit is subject to the same procedures, including those for

public participation and affected program and EPA review, as those that apply to

initial permit issuance.

[RAC 2-107(7)(a)]

1.16.6. The application for renewal shall include the current permit number, description

of permit revisions and off permit changes that occurred during the permit term,

any applicable requirements that were promulgated and not incorporated into the

permit during the permit term, and other information required by the application

form.

[RAC 2-106(4)(e)(ix)]

Facility-Wide Requirements

Conditions in this section of the permit apply to all emissions units located at the facility, including

any units not specifically listed in Table 1 or Table 2 of the Source Emission Points section of this

permit.

[RAC 2-110(1)(d)]

2.1. General Recordkeeping Requirements [RAC 2-110(6)]

The permittee shall comply with the following generally applicable recordkeeping

requirements:

2.1.1. If the permittee determines that his or her stationary source that emits (or has the

potential to emit, without federally recognized controls) one or more hazardous

air pollutants is not subject to a relevant standard or other requirement established

under 40 CFR part 63, the permittee shall keep a record of the applicability

determination, for a period of five years after the determination, or until the

source changes its operations to become an affected source, whichever comes

first. Each of these records shall be made available to the Tribe upon request. The

record of the applicability determination shall include an analysis (or other

18

information) that demonstrates why the permittee believes the source is

unaffected (e.g., because the source is an area source).

[40 CFR 63.10(b)(3)]

2.1.2. Records shall be kept of off permit changes made, as required by the Off Permit

Changes section of this permit.

2.2. General Reporting Requirements

2.2.1. The permittee shall submit to the Tribe all reports of any required monitoring

under this permit semiannually, by April 1 and October 1 of each year. The

report due on April 1 shall cover the July 1 - December 31 reporting period of the

previous calendar year. The report due on October 1 shall cover the January 1 June 30 reporting period of the current calendar year. All instances of deviations

from permit requirements shall be clearly identified in such reports. All required

reports shall be certified by a responsible official consistent with the Submissions

section of this permit.

[RAC 2-110(7)(a)]

2.2.2. “Deviation” means any situation in which an emissions unit fails to meet a permit

term or condition. A deviation is not always a violation. A deviation can be

determined by observation or through review of data obtained from any testing,

monitoring, or recordkeeping established in accordance with RAC 2-110(5) and

(6). For a situation lasting more than 24 hours which constitutes a deviation, each

24 hour period is considered a separate deviation. Included in the meaning of

deviation are any of the following:

2.2.2.1.

A situation where emissions exceed an emission limitation or standard;

2.2.2.2.

A situation where process or emissions control device parameter values

indicate that an emission limitation or standard has not been met; or

2.2.2.3.

A situation in which observations or data collected demonstrate

noncompliance with an emission limitation or standard or any work

practice or operating condition required by the permit.

2.2.2.4.

A situation in which an exceedance or an excursion, as defined in 40 CFR

Part 64 occurs.

[RAC 1-103(21)]

2.2.3. The permittee shall promptly report to the Tribe deviations from permit

requirements, (including emergencies), including the date, time, duration, and the

probable cause of such deviations, the quantity and pollutant type of excess

emissions resulting from the deviation, and any preventative, mitigation, or

19

corrective actions or measures taken. Prompt deviation reports shall be submitted

to the following email address: airquality@southernute-nsn.gov

2.2.4.

“Prompt” is defined as follows:

2.2.4.1.

Where the underlying applicable requirement contains a definition of

“prompt” or otherwise specifies a time frame for reporting deviations, that

definition or time frame shall govern.

2.2.4.2.

Where the underlying applicable requirement fails to address the time

frame for reporting deviations, reports of deviations will be submitted

based on the following schedule:

2.2.4.2.1.

For emissions of a hazardous air pollutant or a toxic air pollutant

(as identified in the applicable regulation) that continue for more

than an hour in excess of permit requirements, the report must be

made by email, telephone, verbal, or facsimile communication by

the close of business the next working day, upon discovery of the

occurrence, and in writing within 10 working days from the

occurrence;

2.2.4.2.2.

For emissions of any regulated air pollutant, excluding those listed

in RAC §2-110(7)(b)(i), that continue for more than 2 hours in

excess of permit requirements, the report must be made by email,

telephone, verbal, or facsimile communication by the close of

business the next working day, upon discovery of the occurrence,

and in writing within 10 working days from the occurrence;

2.2.4.2.3.

For all other deviations from permit requirements, the report shall

be contained in the report submitted with the semi-annual

monitoring report.

[RAC 2-110(7)(b)]

2.3. Alternative Operating Scenarios [RAC 2-110(8)]

2.3.1. Replacement of an existing engine or turbine identified in this permit shall be

allowed as an off-permit change pursuant to the Off Permit Changes provisions of

this permit provided all of the following conditions are met:

2.3.1.1.

The engine or turbine replacement is not subject to any requirements

under Title IV of the Clean Air Act and is not a modification under Title I

of the Clean Air Act;

2.3.1.2.

The replacement engine or turbine is of the same make, model,

horsepower rating, and configured to operate in the same manner as the

engine or turbine being replaced.

20

2.3.1.3.

The replacement engine or turbine meets all applicable requirements

identified in this permit that apply to the existing engine or turbine being

replaced.

2.3.1.4.

All applicable requirements that apply to the replacement engine or

turbine are already included in the permit. Replacement of an existing

engine or turbine identified in this permit with a new, modified, or

reconstructed engine must utilize a Minor Permit Revision as specified in

RAC 2-111(3) or a Significant Permit Revision as specified in RAC 2111(4) to incorporate any new applicable requirements. The applicable

requirements include, but may not be limited to:

2.3.1.4.1.

Standards of Performance for Stationary Compression Ignition

Internal Combustion at 40 CFR Part 60, Subpart IIII;

2.3.1.4.2.

Standards of Performance for Stationary Spark Ignition Internal

Combustion Engines at 40 CFR Part 60, Subpart JJJJ;

2.3.1.4.3.

National Emission Standard for Hazardous Air Pollutants for

Stationary Reciprocating Internal Combustion Engines at 40 CFR

Part 63, Subpart ZZZZ;

2.3.1.4.4.

Standards of Performance for Stationary Gas Turbines at 40 CFR

Part 60, Subpart GG;

2.3.1.4.5.

Standards of Performance for Stationary Combustion Turbines at

40 CFR Part 60, Subpart KKKK;

2.3.1.4.6.

National Emission Standard for Hazardous Air Pollutants for

Stationary Combustion Turbines at 40 CFR Part 63, Subpart

YYYY;

2.3.1.4.7.

Requirements established in a permit or permits issued pursuant to

the Federal Minor New Source Review Program in Indian Country

at 40 CFR Part 49;

2.3.1.4.8.

Requirements established in a permit or permits issued pursuant to

the Prevention of Significant Deterioration of Air Quality Program

at 40 CFR Part 52; or

2.3.1.4.9.

Requirements established in any promulgated Federal

Implementation Plan that may apply to engines located on the

Southern Ute Indian Reservation.

21

2.3.2. The permittee shall provide contemporaneous written notice to the Tribe and the

Administrator of any replacement of an existing engine or turbine identified in

this permit. Such notice shall state when the replacement occurred and shall

describe the replacement and any applicable requirement that would apply as a

result of the replacement.

2.3.3. The permittee shall keep a record of the engine or turbine replacement.

2.3.4. The use of a backup thermal oxidizer with equivalent capacity and emission

destruction efficiency and configured to operate in the same manner as the

primary thermal oxidizer shall be an allowed alternative operating scenario under

this permit provided that the following conditions are met:

2.3.4.1.

Any emission limits, requirements, testing or other provisions that apply to

the primary thermal oxidizer shall also apply to the backup thermal

oxidizer except that an annual performance test shall only be conducted on

the backup thermal oxidizer if the unit operates for more than 500 hours in

any calendar year.

2.3.4.2.

At no time shall the backup thermal oxidizer operate at the same time the

primary thermal oxidizer is operating except periods of transition between

the primary and backup thermal oxidizers. Transition events shall be

documented, last no more than 30 minutes in duration, and will be

reported as excess emission events.

2.4. Permit Shield [RAC 2-110(10)(c)]

Nothing in this permit shall alter or affect the following:

2.4.1. The provisions of Section 303 of the Clean Air Act, 42 U.S.C. §7603 concerning

emergency powers, including the respective authorities of the Administrator under

those sections;

2.4.2. The liability of a permittee for any violation of applicable requirements prior to or

at the time of permit issuance;

2.4.3. The applicable requirements of the acid rain program consistent with section

408(a) of the Act; or

2.4.4. The ability of the Administrator respectively to obtain information from a source

pursuant to Section 114 of the Clean Air Act, 42 U.S.C. §7414.

2.5. Stratospheric Ozone and Climate Protection [40 CFR Part 82]

22

The permittee shall comply with the standards for recycling and emissions reduction

pursuant to 40 CFR Part 82, Subpart F:

2.5.1. Persons opening appliances for maintenance, service, repair, or disposal must

comply with the required practices pursuant to 40 CFR §82.156.

2.5.2. Equipment used during the maintenance, service, repair, or disposal of appliances

must comply with the standards for recycling and recovery equipment pursuant to

40 CFR §82.158.

2.5.3. Persons performing maintenance, service, repair, or disposal of appliances must

be certified by an approved technician certification program pursuant to 40 CFR

§82.161.

Section III – Site Specific Permit Terms

Reserved - New Source Performance Standards (NSPS) and 40 CFR Part 60

National Emission Standards for Hazardous Air Pollutants (NESHAP) and 40 CFR

Part 63

2.1. 40 CFR Part 63, Subpart HH - National Emission Standards for Hazardous Air

Pollutants from Oil and Natural Gas Production Facilities [40 CFR 63.760 –

63.779 and RAC 4-103]

The permittee is the owner or operator of a glycol dehydration unit that is exempt from

the standards of 40 CFR §63.764(d). The permittee shall retain each determination used

to demonstrate that the actual average benzene emissions from each dehydrator are

below 0.90 megagram per year.

[40 CFR 63.764(e)(1), 63.772(b), and 63.774(d)(1)]

2.1.1. The permittee must obtain an extended wet gas analysis of the inlet gas stream at

least once per calendar year. The gas sample shall be taken at a point prior to

where the gas enters the dehydration system contact tower. The analysis shall

include the gas temperature and pressure at which the sample was taken. The gas

analysis results and corresponding temperature and pressure documented during

collection of the gas sample must be used to determine the actual average benzene

emissions annually, in accordance with §63.772(b)(2)(i) or (ii). If electing to

make this demonstration according §63.772(b)(2)(i), using the GRI-GLYCalc TM

model, the permittee shall perform each model run using a single gas analysis and

the corresponding temperature and pressure documented during collection of the

gas sample. The permittee may elect to average the results of multiple GRIGLYCalcTM model runs in determining actual average benzene emissions

annually, if multiple gas samples are collected within a 12-month period.

[RAC 2-110(5)(b)]

23

2.2. 40 CFR Part 63, Subpart ZZZZ – National Emission Standards for Hazardous

Air Pollutants for Stationary Reciprocating Internal Combustion Engines [40

CFR 63.6580 – 63.6675 and RAC 4-103]

This facility is subject to the requirements of 40 CFR Part 63, Subpart ZZZZ for existing

non-emergency SI 4SRB stationary reciprocating internal combustion engines (RICE)

with a site rating less than 100 brake horsepower located at a major source of hazardous

air pollutants (HAPs). Notwithstanding conditions in this permit, the permittee shall

comply with all applicable requirements of 40 CFR Part 63, Subpart ZZZZ.

2.2.1. Affected Sources

The following emission units are considered affected sources under 40 CFR Part

63, Subpart ZZZZ:

G-102 – Ford ESG-642 (4SRB SI) Natural Gas-Fired Generator Engine, 57 Site

Rated HP

[40 CFR 63.6585 & 63.6590]

2.2.2. Emission and Operating Limitations

2.2.2.1.

If you own or operate an existing stationary RICE with a site rating of

equal to or less than 500 brake HP located at a major source of HAP

emissions, you must comply with the emission limitations and other

requirements in Table 2c to this subpart which apply to you.

[40 CFR 63.6602]

Table 2c to Subpart ZZZZ of Part 63 – Requirements for Existing Spark Ignition Stationary RICE ≤ 500

HP Located at a Major Source of HAP Emissions

As stated in §§63.6600, 63.6602, and 63.6640, you must comply with the following requirements for existing

spark ignition stationary RICE ≤500 HP located at a major source of HAP emissions

For Each…

7. Non-Emergency,

non-black start

stationary SI RICE

<100 HP that are not

2SLB stationary RICE

You must meet the following requirements, except

during periods of startup…

a. Change oil and filter every 1,440 hours of

operation or within 1 year + 30 days of the previous

change, whichever comes first;2

b. Inspect spark plugs every 1,440 hours of operation

or within 1 year + 30 days of the previous inspection,

whichever comes first, and replace as necessary

During periods of startup you

must…

Minimize the engine’s time

spent at idle and minimize the

engine’s startup time at startup

to a period needed for

appropriate and safe loading of

the engine, not to exceed 30

minutes, after which time the

non-startup emission limitations

apply.3

c. Inspect all hoses and belts every 1,440 hours of

operation or within 1 year + 30 days of the previous

inspection, whichever comes first, and replace as

necessary3

2

Sources have the option to utilize an oil analysis program as described in §63.6625(i) or (j) in order to extend the

specified oil change requirement in table 2c of this subpart.

24

3

Sources can petition the Administrator pursuant to the requirements of 40 CFR 63.6(g) for alternative work

practices.

2.2.3. General Compliance Requirements

2.2.3.1.

You must be in compliance with the emission limitations, operating

limitations, and other requirements in this subpart that apply to you at all

times.

[40 CFR 63.6605(a)]

2.2.3.2.

At all times you must 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. The general duty to minimize emissions does not

require you to make any further efforts to reduce emissions if levels

required by this standard have been achieved. Determination of whether

such operation and maintenance procedures are being used will be based

on information available to the Administrator which may include, but is

not limited to, monitoring results, review of operation and maintenance

procedures, review of operation and maintenance records, and inspection

of the source.

[40 CFR 63.6605(b)]

2.2.4. Monitoring, Instillation, Collection, Operation, and Maintenance

Requirements

2.2.4.1.

You must operate and maintain the stationary RICE and after-treatment

control device (if any) according to the manufacturer's emission-related

written instructions or develop your own maintenance plan which must

provide to the extent practicable for the maintenance and operation of the

engine in a manner consistent with good air pollution control practice for

minimizing emissions.

[40 CFR 63.6625(e)]

2.2.4.2.

You must minimize the engine's time spent at idle during startup and

minimize the engine's startup time to a period needed for appropriate and

safe loading of the engine, not to exceed 30 minutes, after which time the

emission standards applicable to all times other than startup in Table 2c to

this subpart.

[40 CFR 63.6625(h)]

2.2.4.3.

You have the option of utilizing an oil analysis program in order to extend

the specified oil and filter change requirement in table 2c. The oil analysis

must be performed at the same frequency specified for changing the oil

and filter in table 2c. The analysis program must at a minimum analyze the

25

following three parameters: Total Acid Number, viscosity, and percent

water content. The condemning limits for these parameters are as follows:

Total Acid Number increases by more than 3.0 milligrams of potassium

hydroxide (KOH) per gram from Total Acid Number of the oil when new;

viscosity of the oil has changed by more than 20 percent from the

viscosity of the oil when new; or percent water content (by volume) is

greater than 0.5. If all of these condemning limits are not exceeded, the

engine owner or operator is not required to change the oil and filter. If any

of the limits are exceeded, the engine owner or operator must change the

oil and filter within 2 business days of receiving the results of the analysis;

if the engine is not in operation when the results of the analysis are

received, the engine owner or operator must change the oil and filter

within 2 business days or before commencing operation, whichever is

later. The owner or operator must keep records of the parameters that are

analyzed as part of the program, the results of the analysis, and the oil and

filter changes for the engine. The analysis program must be part of the

maintenance plan for the engine.

[40 CFR 63.6625(j)]

2.2.5. Continuous Compliance Requirements

2.2.5.1.

You must demonstrate continuous compliance with each emission

limitation, operating limitation, and other requirements in Table 2c that

apply to you according to methods specified in Table 6 to this subpart.

[40 CFR 63.6640(a)]

Table 6 to Subpart ZZZZ of Part 63 – Continuous Compliance with Emission Limitations, and

Other Requirements

As stated in §63.6640, you must continuously comply with the emissions and operating limitations

and work or management practices as required by the following:

Complying with the

You must demonstrate

For Each…

requirement to…

continuous compliance by…

9. Existing non-emergency

a. Work or Management

i. Operating and maintaining the

stationary RICE <100 HP located practices

stationary RICE according to the

at a major source of HAP

manufacturer's emission-related

operation and maintenance

instructions; or

ii. Develop and follow your own

maintenance plan which must

provide to the extent practicable for

the maintenance and operation of

the engine in a manner consistent

with good air pollution control

practice for minimizing emissions.

2.2.5.2.

You must report each instance in which you did not meet each emission

limitation or operating limitation in Table 2c that apply to you. These

26

instances are deviations from the emission and operating limitations in this

subpart. These deviations must be reported according to the requirements

in §63.6650. If you change your catalyst, you must reestablish the values

of the operating parameters measured during the initial performance test.

When you reestablish the values of your operating parameters, you must

also conduct a performance test to demonstrate that you are meeting the

required emission limitation applicable to your stationary RICE.

[40 CFR 63.6640(b)]

2.2.5.3.

You must also report each instance in which you did not meet the

requirements in Table 8 to this subpart that apply to you.

[40 CFR 63.6640(e)]

2.2.6. Notifications, Reports, and Records

2.2.6.1.

You must keep the records required in Table 6 of this subpart to show

continuous compliance with each emission or operating limitation that

applies to you.

[40 CFR 63.6655(d)]

2.2.6.2.

You must keep records of the maintenance conducted on the stationary

RICE in order to demonstrate that you operated and maintained the

stationary RICE and after-treatment control device (if any) according to

your own maintenance plan.

[40 CFR 63.6655(e)]

2.2.6.2.1.

In order to demonstrate compliance with the maintenance

requirements, maintenance records will record the information

including, but not limited to, the following:

2.2.6.2.1.1.

Date the maintenance activity occurred.

2.2.6.2.1.2.

Hours of engine operation.

2.2.6.2.1.3.

Engine serial number.

2.2.6.2.1.4.

If an engine oil sample was pulled, if the engine oil analysis

program is allowed under §63.6625(j).

2.2.6.2.1.5.

If the engine oil was replaced.

2.2.6.2.1.6.

If the engine oil filter was replaced.

2.2.6.2.1.7.

If the belts were inspected or replaced.

27

2.2.6.2.1.8.

If the hoses were inspected or replaced.

2.2.6.2.1.9.

If the sparkplugs were inspected or replaced.

[RAC 2-110(6)]

2.2.6.3.

Records must be in a form suitable and readily available for expeditious

review according to §63.10(b)(1).

[40 CFR 63.6660(a)]

2.2.6.4.

As specified in §63.10(b)(1), you must keep each record for 5 years

following the date of each occurrence, measurement, maintenance,

corrective action, report, or record.

[40 CFR 63.6660(b)]

2.2.6.5.

You must keep each record readily accessible in hard copy or electronic

form for at least 5 years after the date of each occurrence, measurement,

maintenance, corrective action, report, or record, according to

§63.10(b)(1).

[40 CFR 63.6660(c)]

2.2.7. Other Requirements and Information

2.2.7.1.

Table 8 to this subpart shows which parts of the General Provisions in

§§63.1 through 63.15 apply to you.

[40 CFR 63.6665]

Table 8 to Subpart ZZZZ of Part 63—Applicability of General Provisions to Subpart ZZZZ

General

provisions

citation

§63.1

§63.2

§63.3

§63.4

§63.5

§63.6(a)

Applies

to

Explanation

subpart

General applicability of the General Provisions Yes.

Definitions

Yes

Additional terms defined in §63.6675.

Units and abbreviations

Yes.

Prohibited activities and circumvention

Yes.

Construction and reconstruction

Yes.

Applicability

Yes.

Compliance dates for new and reconstructed

§63.6(b)(1)-(4)

Yes.

sources

§63.6(b)(5)

Notification

Yes.

Compliance dates for new and reconstructed

§63.6(b)(7)

Yes.

area sources that become major sources

§63.6(c)(1)-(2)

Compliance dates for existing sources

Yes.

Compliance dates for existing area sources that

§63.6(c)(5)

Yes.

become major sources

§63.6(f)(2)

Methods for determining compliance

Yes.

§63.6(f)(3)

Finding of compliance

Yes.

Subject of citation

28

§63.6(g)(1)-(3)

§63.6(i)

§63.6(j)

Use of alternate standard

Compliance extension procedures and criteria

Presidential compliance exemption

Yes.

Yes.

Yes.

§63.7(a)(1)-(2)

Performance test dates

Yes

§63.7(a)(3)

CAA section 114 authority

Yes.

§63.7(b)(1)

Notification of performance test

Yes

§63.7(b)(2)

Notification of rescheduling

Yes

§63.7(c)

Quality assurance/test plan

Yes

§63.7(d)

Yes.

§63.7(h)

Testing facilities

Conduct of performance tests and reduction of

data

Test run duration

Administrator may require other testing under

section 114 of the CAA

Alternative test method provisions

Performance test data analysis, recordkeeping,

and reporting

Waiver of tests

§63.8(a)(1)

Applicability of monitoring requirements

Yes

§63.7(e)(2)

§63.7(e)(3)

§63.7(e)(4)

§63.7(f)

§63.7(g)

§63.8(a)(2)

§63.8(b)(1)

Performance specifications

Monitoring

Multiple effluents and multiple monitoring

§63.8(b)(2)-(3)

systems

§63.8(c)(1)

Monitoring system operation and maintenance

§63.8(c)(1)(ii) SSM not in Startup Shutdown Malfunction Plan

§63.8(c)(2)-(3)

Monitoring system installation

Yes

Except that §63.7(b)(1) only applies as

specified in §63.6645.

Except that §63.7(b)(2) only applies as

specified in §63.6645.

Except that §63.7(c) only applies as

specified in §63.6645.

Subpart ZZZZ specifies test methods

at §63.6620.

Yes.

Yes.

Yes.

Yes.

Yes.

Subpart ZZZZ contains specific

requirements for monitoring at

§63.6625.

Yes.

Yes.

Yes.

Yes.

Yes.

Yes.

§63.8(c)(4)

Continuous monitoring system (CMS)

requirements

Yes

§63.8(c)(6)-(8)

CMS requirements

Yes

§63.8(d)

CMS quality control

Yes.

§63.8(e)

CMS performance evaluation

Yes

§63.8(f)(1)-(5)

Alternative monitoring method

Yes

§63.8(f)(6)

Alternative to relative accuracy test

Yes

§63.8(g)

Data reduction

Yes

29

Subpart ZZZZ contains performance

test dates at §§63.6610, 63.6611, and

63.6612.

Except that subpart ZZZZ does not

require Continuous Opacity

Monitoring System (COMS).

Except that subpart ZZZZ does not

require COMS.

Except for §63.8(e)(5)(ii), which

applies to COMS.

Except that §63.8(e) only applies as

specified in §63.6645.

Except that §63.8(f)(4) only applies as

specified in §63.6645.

Except that §63.8(f)(6) only applies as

specified in §63.6645.

Except that provisions for COMS are

not applicable. Averaging periods for

demonstrating compliance are

specified at §§63.6635 and 63.6640.

§63.9(a)

Applicability and State delegation of

notification requirements

Yes.

§63.9(b)(1)-(5)

Initial notifications

Yes

§63.9(c)

Request for compliance extension

Yes

§63.9(d)

Notification of special compliance requirements

for new sources

Yes

§63.9(e)

Notification of performance test

Yes

§63.9(g)(1)

Notification of performance evaluation

Yes

§63.9(g)(3)

Notification that criterion for alternative to

RATA is exceeded

Yes

§63.9(h)(1)-(6)

Notification of compliance status

Yes

§63.9(i)

§63.9(j)

Adjustment of submittal deadlines

Change in previous information

Administrative provisions for

recordkeeping/reporting

Yes.

Yes.

Record retention

Yes

§63.10(a)

§63.10(b)(1)

Yes.

§63.10(b)(2)(vi)(xi)

§63.10(b)(2)(xii)

Records

Yes.

Record when under waiver

Yes.

§63.10(b)(2)(xiii)

Records when using alternative to RATA

Yes

§63.10(b)(2)(xiv)

§63.10(b)(3)

Records of supporting documentation

Records of applicability determination

Yes.

Yes.

§63.10(c)

Additional records for sources using CEMS

Yes

§63.10(d)(1)

§63.10(d)(2)

§63.10(d)(4)

§63.10(e)(1) and

(2)(i)

General reporting requirements

Report of performance test results

Progress reports

Yes.

Yes.

Yes.

Additional CMS Reports

Yes.

§63.10(e)(3)

§63.10(f)

§63.12

§63.13

Excess emission and parameter exceedances

reports

Waiver for recordkeeping/reporting

State authority and delegations

Addresses

30

Except that §63.9(b)(3) is reserved.

Except that §63.9(b) only applies as

specified in §63.6645

Except that §63.9(c) only applies as

specified in §63.6645.

Except that §63.9(d) only applies as

specified in §63.6645.

Except that §63.9(e) only applies as

specified in §63.6645.

Except that §63.9(g) only applies as

specified in §63.6645.

If alternative is in use.

Except that §63.9(g) only applies as

specified in §63.6645.

Except that notifications for sources

using a CEMS are due 30 days after

completion of performance

evaluations. §63.9(h)(4) is reserved.

Except that §63.9(h) only applies as

specified in §63.6645.

Yes.

Yes.

Yes.

Yes.

Except that the most recent 2 years of

data do not have to be retained on site.

For CO standard if using RATA

alternative.

Except that §63.10(c)(2)-(4) and (9)

are reserved.

Except that §63.10(e)(3)(i) (C) is

reserved.

§63.14

Incorporation by reference

Yes.

§63.15

Availability of information

Yes.

Reserved – Tribal Minor New Source Review

Reserved – Prevention of Significant Deterioration Requirements

Reserved – Consent Decree Requirements

Reserved – Compliance Assurance Monitoring (CAM) Requirements

Enhanced Monitoring, Recordkeeping, and Reporting

7.1. Any documents required to be submitted under this Title V operating permit,

including but not limited to, reports, test data, monitoring data, notifications,

compliance certifications, fee calculation worksheets, and applications for renewals

and permit modifications shall be submitted to the Tribe:

by email at: airqualty@southernute-nsn.gov

or by United States Postal Service:

or by Common Carrier:

Part 70 Program

Environmental Programs Department

Air Quality Division

P.O. Box 737 MS #84

Ignacio, Colorado 81137

Part 70 Program

Environmental Programs Department

Air Quality Division

398 Ouray Drive

Ignacio, CO 81137

31

Section IV – Appendix

Inspection Information

1.1. Driving Directions:

From Hwy 550 and CR 310/318 going east, travel approximately 10 miles and turn right

at the dirt road. Traveling south 1.5 miles up Herrera Hill, stay to the right at the top of

the hill. At the next intersection, SU 151, go straight through and continue approximately

2.5 miles. The station will be on your right.

1.2. Global Positioning System (GPS):

Latitude: 37.044872 °N

Longitude: -107.731283 °W

1.3. Safety Considerations:

All visitors to the facility are expected to adhere to Red Cedar Gathering Company’s

safety policies. Policies of particular concern are those regarding Personal Protective

Equipment (PPE) and performance of Hot Work. As posted at the entrance to the station,

Red Cedar Gathering Company requires persons entering the site to wear a hard hat,

safety glasses, safety toe footwear, hearing protection, and fire-retardant clothing. Red

Cedar Gathering Company also requires a permit be issued prior to the performance of

any Hot Work at the station.

32

This is a copy of a public record, reproduced as it was published. It is not legal advice, and it may not be the version a court would rely on. Check the official source before you cite it.

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