# Update Presentation to the (2026)

> Briefs, arguments, decisions, and more.

URL: https://www.frixlaw.com/law-library/documents/tribal%3Asouthern_ute%3Add22e264f7ec95f4

## Record

- **Collection:** Tribal code
- **Document type:** Tribal code

## Text

Update Presentation to the
Southern Ute Indian Tribe/State
of Colorado Environmental
Commission
Jessica Ferko and Leah Martland
Planning and Policy Program, Air
Pollution Control Division
May 13, 2026

Agenda
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●
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●

Priority Toxic Air Contaminants
NSPS rule updates
Ozone State Implementation Plan (SIP) updates
Funding Sources for Colorado’s Air Program

Priority toxic air
contaminants

Public Protections from Toxic Air Contaminants Act
Define and
periodically revise list
of Colorado air toxics

●
●
●
●

Improve air toxics
emission inventory

Expand ambient air toxics
monitoring network
4

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Air Division developed initial list in October 2022.
Air commission revised list in April 2025, identifying
344 pollutants.
Commission must review this list every 5 years.
Prior to 2023, the emission inventory for air toxics was
largely based on Air Pollutant Emission Notices (APEN).
HB22-1244 required annual emissions reports from
larger sources, beginning with calendar year 2023.
Commission expanded annual reporting to certain
smaller sources, which starts in 2027 or 2028.
Seven new ambient monitors as of July 2025.
Each station monitors for 96 pollutants.
First annual report released October 2025.

Public Protections from Toxic Air Contaminants Act

●
●

Priority Toxic Air
Contaminants
●
(PTAC)
●

5

Commission adopted 5 PTAC in January 2025.
Commission adopted health-based standards for each
PTAC in September 2025, pending General Assembly
approval.
Division submitted PTAC Permitting Conceptual
Framework and Needs Assessment Report to General
Assembly in December 2025.
Commission must adopt control strategies by April
30, 2026.

What are the five PTAC?
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●
●
●
●

Benzene
Ethylene oxide
Formaldehyde
Hexavalent chromium
Hydrogen sulfide

TAC emissions from point sources (no toxicity weighting)

Distribution of TAC emissions - 2020 Point Source NEI
7

Toxicity weighted TAC emissions from point sources

Distribution of RSEI-weighted TAC emissions - 2020 Point Source NEI
8

What are the PTAC emission control strategies?
Pollutant

Proposal

Applicability

Basis for
proposal

Why was it
proposed

Benzene

Lower leak detection
threshold for pumps and
other covered
components.

Existing and new
petroleum
refineries.

Reviewed federal
consent decrees
and leak detection
programs in other
States.

Detection and
repair of additional
equipment leaks.

Ethylene
oxide

Emissions limitations for
abatement equipment
and fugitive releases and
enhanced monitoring.

Existing and new
sterilization
facilities that use
more than 400
lbs/year of
ethylene oxide.

Reviewed
NESHAP Subpart
O and South Coast
sterilizer rule.

More effective
destruction of
ethylene oxide
from abatement
equipment and
reduce fugitive
emissions.

What are the PTAC emission control strategies?
Pollutant

Proposal

Applicability

Basis for
proposal

Why was it
proposed

Formaldehyde

Require carbon
monoxide or
formaldehyde
emissions limitations
for stationary engines
and turbines.

Formaldehyde
emissions at or
above 4000 lb/yr
and, for existing
sources, located in
or within one mile
of a 2020 PTAC
cancer risk
screening area or
occupied area
within a
disproportionately
impacted
community.

Reviewed federal
NSPS and
NESHAP and
other rules and
programs
implemented by
other States.

Ensure additional
formaldehyde
reductions by
applying more
stringent emissions
limitations.

What are the PTAC emission control strategies?
Pollutant

Proposal

Applicability

Basis for
proposal

Why was it
proposed

Hexavalent
chromium

Prohibition on use of
decorative chrome
plating and work
practices for existing
decorative or new
functional plating and
anodizing.

Existing and new
plating or anodizing
operations that use
hexavalent chromium.

Reviewed
NESHAP Subpart
N and California
chromium control
measures.

Adoption of less
toxic alternatives
and work
practices to
reduce fugitive
emissions.

Hydrogen
sulfide

Control requirement for
asphalt operations and
best management
practices for anerobic
digesters.

Existing or new asphalt
processing plants,
asphalt roofing plant
operations, or anerobic
digesters with hydrogen
sulfide emissions at or
above 10,000 lb/yr.

Reviewed
operations and
maintenance
plans and
permits.

Reduce hydrogen
sulfide emissions.

Iterative requirements to address PTAC are directed by law
●

Statute requires the Commission to periodically revisit
the PTAC by specific deadlines:
○ By September 30, 2029, determine whether to
identify any additional PTAC.
○ By September 30, 2029, review the health-based
standards for the initial 5 PTAC.
○ By September 30, 2030, propose health-based
standards for any new PTAC.
○ By September 30, 2030, adopt emission control
regulations for any new PTAC and review the
initial PTAC regulations.

●

And subsequently, every five years thereafter.

Priority Toxic Air
Contaminants
(PTAC)

12

Emission Guideline (EG)
OOOOc

What is EPA’s Emission Guideline (EG) OOOOc?
● In March 2024, EPA finalized new rules for reducing methane emissions at certain oil
and gas facilities and equipment: 40 CFR Part 60, Subpart OOOOc – Emissions
Guidelines for Greenhouse Gas Emissions from Existing Crude Oil and Natural Gas
Facilities.

● Colorado must adopt requirements for certain oil and gas “designated facilities”
based on the Emission Guidelines.
○ Colorado adopted requirements for pneumatic controllers and pumps (two
designated facilities) in February 2025.
○ Colorado adopted requirements for compressors and equipment at natural gas
processing plants and in the transmission and storage segment in February 2026.
● As a next step, the Division is evaluating potential revised requirements for
additional designated facilities.

What are “designated facilities”?
Equipment or
process

Location

Summary of
requirement

Well liquids unloading

Well site

Best management
practices to reduce
emissions

Associated gas

Centrifugal compressor
Reciprocating
compressor

Recover and route
gas to sales line,
onsite fuel,
reinjection
Centralized production
facility, natural gas
processing plant,
compressor station

Maintain a
volumetric flow rate

In EPA’s
OOOOc,
“designated
facilities” are
subject to
emissions
reductions
requirements.

What are “designated facilities” (continued)?
Equipment or
process

Location

Summary of
requirement

Process controller

Well site, centralized
production facility,
natural gas
processing plant,
compressor station

Operate with zero
emissions

Pump
Storage vessel

Reduce emissions by
95%

Fugitive emissions

Periodic leak
inspection and repair

In EPA’s
OOOOc,
“designated
facilities” are
subject to
emissions
reductions
requirements.

What is the Division proposing?
● Regulation Number 7 already includes requirements for oil and gas
equipment and operations, but not all align with EPA’s Emission
Guidelines.
● The Division is evaluating revisions related to requirements for:
○ Enclosed combustion devices.
○ Flares.
○ Closed vent systems.
○ Covers.
○ Well associated gas.
○ Storage vessels.

What is the Division proposing?
Equipment

Location

Current
Requirements

Potential Proposed
Requirements

Enclosed
combustion devices

Exploration and
production
operations, disposal
well facilities, well
sites, compressor
stations, natural gas
processing plants

Monitor pilot light

New design and
operation
requirements

Opacity
requirements

Flow metering

Natural gas
processing plants

Few requirements
for some facilities

New design and
operation
requirements

Flares

What is the Division proposing?
Equipment

Location

Current
Requirements

Potential Proposed
Requirements

Closed vent systems Exploration and
production
operations, disposal
well facilities, well
sites, compressor
stations, natural gas
processing plants

Certification and
inspection
requirements only
for pneumatic
controllers

Add standard
certification,
operation,
inspection, and
recordkeeping
requirements

Covers

Few requirements
for some facilities

Storage vessels,
compressors

What is the Division proposing?
Equipment

Location

Current
Requirements

Potential Proposed
Requirements

Storage vessels

Exploration and
production
operations, disposal
well facilities, well
sites, compressor
stations, natural gas
processing plants

Design, operation,
control, inspection,
and recordkeeping
requirements

Add new control
requirements and
clarify control
applicability

Associated gas
(wells)

Storage vessels,
compressors

Control
requirements

Add new control
requirements

What is the Division proposing?
● The Division will also develop Colorado’s 111(d) Plan.
● The federal Clean Air Act Section 111(d) requires the development and
submission to EPA of plans that establish performance standards to reduce
emissions from designated facilities. Elements of the plan include, but are not
limited to, demonstrating
○ Legal authority to implement the plan.
○ Identification of enforceable statement mechanisms (e.g., regulation) to
implement the plan.
○ Documentation of engagement on the plan.
○ Certification of required hearing on the plan.
● Colorado’s 111(d) Plan demonstrates that Colorado has adopted requirements
that meet EPA’s presumptive standards in EG OOOOc.

Fee increases

Why are
fees
collected?

23

Fees may be adjusted by the Commission to
cover direct and direct costs required to
develop and adminster programs established
under the Colorado Air Act.
● Direct and indirect program costs, include
but are not limited to:
○ Reviewing permit applications.
○ Enforcing permit requirements.
○ Emissions monitoring and tracking.
○ Developing regulations.
○ Emissions modeling.
○ Emissions inventory and tracking.
23

Why are
additional
fees
needed?

24

Colorado law requires the Division to further improve
Colorado's air quality and achieve the state's climate,
environmental justice, air toxics, and regulatory goals.
Colorado has to undertake additional work to meet
state and federal requirements.
Current fees do not support the enhanced and
expanded work. To cover additional costs, the Division
is proposing increases to:
● Emissions fees.
● APEN filing fees.
● Permit processing fees.
● Application fees.
24

What is the Division proposing revising?

Regulation Number 7, Part B, Section V.
Fee

Current rate

Unit

Percent
increase

Potential increased rate*

Annual fee for criteria pollutant
emissions

$84.00 in 2026, $60.00 for years
after

Per ton

95%

$164 in 2027 (2026 emissions)

Annual fee for hazardous air
pollutant (HAP) emissions

$557.00 in 2026, $398.00 for
years after

Per ton

95%

$1090 in 2027 (2026 emissions)

Annual fee for greenhouse gas
(GHG) emissions

Varies by facility or company,
total of $6.5 million

Per ton

11%

Varies by facility or company, 2027
total is $7.25 million

Air pollutant emissions notice
(APEN) filing

$363.00

Per APEN

86%

$675 starting effective date

Emissions reporting notice filing
(Section V. reporters)

NA

Per Notice

NA

$270 per AIRS point

Permit processing

$180.00

Per hour

127%

$410 starting effective date

25

25

Ozone SIP

Ozone nonattainment
●

●

Ozone is a colorless, odorless gas that forms following a reaction
between pollutants (specifically nitrogen oxides (NOx) and volatile
organic compounds (VOC)) in the presence of sunlight.
Ground-level ozone has a harmful effect on human health and the
environment.

More information:
https://cdphe.colorado.gov/severe-ozone-planning

Ozone nonattainment
● Nonattainment under two
national ambient air
quality standards (NAAQS)
● 2008 NAAQS: severe,
attainment date July
20, 2027
● 2015 NAAQS: serious,
attainment date
August 3, 2027

Ozone nonattainment
3-year running design values - Ozone
(*2025 preliminary data)

90

Parts per billion

85
Chatfield
State Park

80
75

Fort Collins West

70
65
60

Design Value Years

*Design Values
defined as the 4th
highest daily
maximum 8-hour
average
concentration,
averaged over a 3year period

Other Upcoming Rule
Revisions or Proposals

Other ongoing or upcoming regulatory efforts
●
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●

●

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Updates to industrial manufacturing requirements in Regulation 27 (GEMM)
Request reclassification to attainment for PM10 and repeal maintenance plans
Procedural Rules and Regulation Number 10 – repeal outdate rulemaking procedures and
requirement for non-routine conformity determinations to be presented to the Air Quality
Control Commission
Regulation Numbers 6 and 8 – updates to the incorporation by reference of federal New
Source Performance Standards (Reg 6) and National Emissions Standards for Hazardous Air
Pollutants (Reg 8)
Update the maximum penalty in the Common Provisions
Develop a PM2.5 infrastructure SIP for submission to EPA
Update Regulation 19 to include recent federal changes related to lead abatement
Potential expansion of lawn and garden use restrictions in Regulation 29 to commercial
operators

Locations of additional information
●

Recent Air Quality Control Commission hearings materials:
○
○
○
○
○

EG OOOOc (Feb. 2025):
https://drive.google.com/drive/folders/1pa3OR_MtSXZ_uGnklBqPqsK64gyc0d8c
EG OOOOc (Feb. 2026):
https://drive.google.com/drive/folders/1pIMsvvDuDoOSJewpiAdA5d7mQUib9Bah
EG OOOOc (Sept. 2026):
https://drive.google.com/drive/folders/1LA6zy4sqWUzu8RmqPSsh1quazORzVPYW
PTAC control strategies:
https://drive.google.com/drive/folders/1Scl7f9WlX8tzasiY3lbFQu3CcDVqoKop
Fees (May 2026): https://drive.google.com/drive/folders/1s4097w2ZY9-NLnYw0DNN9B2ggRy3JwE

●

Air Quality Control Commission (AQCC) hearing public participation opportunities:
https://cdphe.colorado.gov/aqcc-public-participation-and-hearing-guidance

●

Air Pollution Control Division listening and engagement sessions:
https://cdphe.colorado.gov/APCD/Outreach

Questions?
Thank you!

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Source: Frix Law Library, https://www.frixlaw.com/law-library/documents/tribal%3Asouthern_ute%3Add22e264f7ec95f4. Public record. Not legal advice.
