
[Federal Register Volume 82, Number 133 (Thursday, July 13, 2017)]
[Proposed Rules]
[Pages 32287-32294]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-14748]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R08-OAR-2017-0298; FRL-9964-84-Region 8]


Approval and Promulgation; State of Utah; Salt Lake County and 
Utah County Nonattainment Area Coarse Particulate Matter State 
Implementation Plan Revisions to Control Measures for Point Sources

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

-----------------------------------------------------------------------

SUMMARY: The Environmental Protection Agency (EPA) is proposing to 
approve certain state implementation plan (SIP) revisions submitted by 
Utah on January 4, 2016, and certain revisions submitted on January 19, 
2017, for the coarse particulate matter (PM10) national 
ambient air quality standard (NAAQS) in the Salt Lake County and Utah 
County PM10 nonattainment areas. The revisions that the EPA 
is proposing to approve are located in Utah Division of Administrative 
Rule (DAR) R307-110-17 and SIP Subsection IX.H.1-4, and establish 
emissions limits for PM10, nitrogen oxides (NOx) and sulfur 
dioxide (SO2) for certain stationary sources in the 
nonattainment areas. These actions are being taken under section 110 of 
the Clean Air Act (CAA).

DATES: Written comments must be received on or before August 14, 2017.

[[Page 32288]]


ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R08-
OAR-2017-0298 at http://www.regulations.gov. Follow the online 
instructions for submitting comments. Once submitted, comments cannot 
be edited or removed from www.regulations.gov. The EPA may publish any 
comment received to its public docket. Do not submit electronically any 
information you consider to be Confidential Business Information (CBI) 
or other information whose disclosure is restricted by statute. 
Multimedia submissions (audio, video, etc.) must be accompanied by a 
written comment. The written comment is considered the official comment 
and should include discussion of all points you wish to make. The EPA 
will generally not consider comments or comment contents located 
outside of the primary submission (i.e., on the web, cloud, or other 
file sharing system). For additional submission methods, the full EPA 
public comment policy, information about CBI or multimedia submissions, 
and general guidance on making effective comments, please visit http://www2.epa.gov/dockets/commenting-epa-dockets.

FOR FURTHER INFORMATION CONTACT: James Hou, Air Program, U.S. 
Environmental Protection Agency (EPA), Region 8, Mail Code 8P-AR, 1595 
Wynkoop Street, Denver, Colorado 80202-1129, 303-312-6210, 
hou.james@epa.gov.

SUPPLEMENTARY INFORMATION:

I. General Information

    a. Submitting Confidential Business Information (CBI). Do not 
submit CBI to the EPA through www.regulations.gov or email. Clearly 
mark the part or all of the information that you claim to be CBI. For 
CBI information in a disk or CD ROM that you mail to the EPA, mark the 
outside of the disk or CD ROM as CBI and then identify electronically 
within the disk or CD ROM the specific information that is claimed as 
CBI. In addition to one complete version of the comment that includes 
information claimed as CBI, a copy of the comment that does not contain 
the information claimed as CBI must be submitted for inclusion in the 
public docket. Information so marked will not be disclosed except in 
accordance with procedures set forth in 40 CFR part 2.
    b. Tips for Preparing Your Comments. When submitting comments, 
remember to:
    1. Identify the rulemaking by docket number and other identifying 
information (subject heading, Federal Register date and page number).
    2. Follow directions--The agency may ask you to respond to specific 
questions or organize comments by referencing a Code of Federal 
Regulations (CFR) part or section number.
    3. Explain why you agree or disagree; suggest alternatives and 
substitute language for your requested changes.
    4. Describe any assumptions and provide any technical information 
and/or data that you used.
    5. If you estimate potential costs or burdens, explain how you 
arrived at your estimate in sufficient detail to allow for it to be 
reproduced.
    6. Provide specific examples to illustrate your concerns, and 
suggest alternatives.
    7. Explain your views as clearly as possible, avoiding the use of 
profanity or personal threats.
    8. Make sure to submit your comments by the comment period deadline 
identified.

II. Background

    Under the 1990 amendments to the CAA, Salt Lake and Utah Counties 
were designated nonattainment for PM10 and classified as 
moderate areas by operation of law as of November 15, 1990 (56 FR 
56694, 56840; November 6, 1991). The air quality planning requirements 
for moderate PM10 nonattainment areas are set out in 
subparts 1 and 4, part D, Title I of the Act. As described in section 
110 and 172 of the Act, areas designated nonattainment based on failure 
to meet the PM10 NAAQS are required to develop SIPs with 
sufficient control measures to expeditiously attain and maintain the 
NAAQS.
    On July 8, 1994, the EPA approved the PM10 SIP for Salt 
Lake and Utah Counties (59 FR 35036). The SIP included a demonstration 
of attainment and various control measures, including emission limits 
at stationary sources. Because emissions of SO2 and 
NOX contribute significantly to the PM10 problem 
in the area, the SIP included limits on emissions of SO2 and 
NOX in addition to emissions of PM10.
    On September 26, 1995, the EPA designated Ogden City as 
nonattainment for PM10 and classified the area as moderate 
under section 107(d)(3) of the Act (60 FR 38726; July 28, 1995). 
Subsequently, the EPA approved a clean data determination for the Ogden 
City nonattainment area on January 7, 2013 (78 FR 885), suspending 
obligations to submit certain requirements of part D, subparts 1 and 4 
of the Act for so long as the area continues to attain.
    On July 3, 2002 Utah submitted SIP revisions adopting rule R307-
110-10, which incorporated revisions to portions of Utah's SIP Section 
IX, Part A, and rule R307-110-17, which incorporated revisions to 
portions of Utah's SIP Section IX Part H. These revisions were approved 
by the EPA on December 23, 2002 (67 FR 78181). The revisions to Utah's 
SIP Section IX Part H removed several stationary sources subject to 
reasonably available control technology (RACT) requirements from the 
initial list of RACT sources in the Utah County nonattainment area, 
based on SIP threshold limits for PM10, NOx, and 
SO2 of 100 tpy, 200 tpy, and 250 tpy, respectively. In doing 
so, the number of major stationary sources included in the SIP for the 
Utah County nonattainment area was reduced from 14 sources to 5 
sources. Notably, one of the sources retained in Utah's 2002 SIP was 
Geneva Steel, which underwent a protracted closure and had largely 
ceased operations by 2004. In 2005, the PacifiCorp--Lake Side Power 
Plant was constructed on a portion of the former Geneva Steel facility, 
utilizing banked emission credits from Geneva Steel's closure.
    On January 4, 2016, Utah submitted SIP revisions to R307-110-17 
titled ``Section IX, Control Measures for Area and Point Sources, Part 
H, Emission Limits'' and revisions to Subsection IX.H.1-4. The titles 
for Subsection IX.H.1-4 include: (1) General Requirements: Control 
Measures for Area and Point Sources, Emission Limits and Operating 
Practices, PM10 Requirements; (2) Source Specific Emission 
Limitations in Salt Lake County PM10 Nonattainment/
Maintenance Area; (3) Source Specific Emission Limitations in Utah 
County PM10 Nonattainment/Maintenance Area; and (4) Interim 
Emission Limits and Operating Practices. Additionally, on January 19, 
2017, Utah submitted revisions to Subsection IX.H.1-4. Further 
discussion of the revisions to R307-110-17 and Subsection IX.H.1-4 can 
be found below.

III. EPA's Evaluation of Utah's SIP

A. R307-110-17

    1. Section R307-110-17 incorporates the amendments to Section IX.H 
into state rules, thereby making them effective as a matter of state 
law. This is a ministerial provision and does not by itself include any 
control measures.

B. Subsection IX.H.1-4

    1. Subsection IX.H.1. General Requirements: Control Measures for 
Area and Point Sources, Emission Limits and Operating Practices, 
PM10 Requirements. This section establishes general 
requirements for record keeping,

[[Page 32289]]

reporting, and monitoring for the stationary sources subject to 
emissions limits under subsections IX.H.2-4. Additionally, this section 
establishes general refinery requirements, addressing limitations on 
emitting units common to the refineries in the nonattainment areas. 
These general refinery requirements include limits at fluid catalytic 
cracking units, limits on refinery fuel gas, restrictions on liquid 
fuel oil consumption, requirement for sulfur removal units, and 
requirements for hydrocarbon flares.
    2. Subsection IX.H.2. Source Specific Emission Limitations in Salt 
Lake County PM10 Nonattainment/Maintenance Area. This 
section establishes specific emission limitations for 14 sources. These 
sources are Big West Oil Refinery; Bountiful City Light and Power; 
Central Valley Reclamation Facility; Chevron Products Company; Hexcel 
Corporation; Holly Refining and Marketing Company; Kennecott Utah 
Copper (KUC): Bingham Canyon Mine; KUC: Copperton Concentrator; KUC: 
Power Plant and Tailings Impoundment; KUC: Smelter and Refinery; 
PacifiCorp Energy: Gadsby Power Plant; Tesoro Refining & Marketing 
Company; University of Utah; and West Valley Power Holdings, LLC. Major 
stationary sources were identified based on their potential to emit 
(PTE) of 100 tons per year (tpy) or more of PM10, NOx, or 
SO2. A summary of the current emission limits, for retained 
sources, is outlined in Table 1 below, and a summary of the proposed 
new emission limits is outlined in Table 2 below.

                          Table 1--Current Source Specific Emission Limitations in the Salt Lake County PM10 Nonattainment Area
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                             Concentration based    Alternative emission
               Source                       Pollutant             Process unit         Mass based limits            limits                 limits
--------------------------------------------------------------------------------------------------------------------------------------------------------
Amoco Oil Company \1\..............  PM10..................  Facility Wide.........  113 tpy.
                                     NOX...................  Facility Wide.........  688 tpy..............
                                     SO2...................  Facility Wide.........  2,013 tpy............
Bountiful City Light and Power.....  PM10..................  Facility Wide.........  1.06 tpy.
                                     NOX...................  Facility Wide.........  250 tpy..............
                                     SO2...................  Facility Wide.........  5.97.................
Central Valley Water Reclamation     PM10..................  Facility Wide.........  0.67 tpy.
 Facility.                           NOX...................  Facility Wide.........  203.7 tpy............
                                     SO2...................  Facility Wide.........  3.95 tpy.............
Chevron Products Company...........  PM10..................  Facility Wide.........  175 tpy.
                                     NOX...................  Facility Wide.........  1,022 tpy............
                                     SO2...................  Facility Wide.........  2,578 tpy.
Flying J \2\.......................  PM10..................  Facility Wide.........  22 tpy.
                                     NOX...................  Facility Wide.........  278.7 tpy.
                                     SO2...................  Facility Wide.........  864.6 tpy.
Hercules Aerospace Company--Plant    ......................  ......................  .....................  .....................  175 MMscf natural gas
 #3 \3\.                                                                                                                            per year.
                                                                                                                                   10.8 MM pounds of
                                                                                                                                    carbon fiber
                                                                                                                                    produced per year.
Holly Refining and Marketing         PM10..................  Facility Wide.........  0.416 tpd.
 Company.                            NOX...................  Facility Wide.........  2.09 tpd.............
                                     SO2...................  Facility Wide.........  0.31 tpd.
Kennecott Utah Copper: Bingham       ......................  ......................  .....................  .....................  Maximum of 30,000
 Canyon Mine.                                                                                                                       daily miles for
                                                                                                                                    waste haul trucks.
                                                                                                                                   Fugitive road dust
                                                                                                                                    emission controls.
Kennecott Utah Copper: Power Plant.  PM10..................  Total Power Plant.....  257 tpy.
                                     NOX...................  Total Power Plant.....  5085 tpy.............
                                     SO2...................  Total Power Plant.....  6219 tpy.
Kennecott Utah Copper: Tailings      ......................  ......................  .....................  .....................  Fugitive dust
 Impoundment.                                                                                                                       maintenance program
                                                                                                                                    and mitigation
                                                                                                                                    procedures.
Kennecott Utah Copper: Smelter.....  PM10..................  Main Stack............  400 lb/hr.
                                     SO2 (daily avg).......  Main Stack............  5,700 lb/hr..........
                                     SO2...................  Acid Plant Tail Gas...  1200 lb/hr...........  650 ppmvd.
                                     NOX...................  Smelter Powerhouse....  20.8 lb/hr...........  80/9 ppmdv.
                                     PM10..................  Rotary Concentrate      4.2 lb/hr.
                                                              Dryer Stack.
                                     NOX...................  Rotary Concentrate      7.1 lb/hr............  67 ppmdv.
                                                              Dryer Stack.
Kennecott Utah Copper: Refinery....  PM10..................  Total Refinery........  51.9 tpy.
                                     SO2...................  Total Refinery........  162.6 tpy............
                                     NOX...................  Total Refinery........  121 tpy.
University of Utah.................  PM10..................  Source wide...........  74.3 tpy.
                                     NOX...................  Source wide...........  245.8 tpy.
                                     SO2...................  Source wide...........  219.3 tpy.
Utah Power and Light--Gadsby \4\...  PM10..................  Source Wide...........  61.3 tpy.
                                     NOX...................  Source wide...........  2,983 tpy............

[[Page 32290]]

 
                                     SO2...................  Source wide...........  67.7 tpy.
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ The Amoco Oil Company facility corresponds with the Tesoro Refining and Marketing Company in the proposed emission limits of Table 2.
\2\ The Flying J refinery corresponds with the Big West Oil facility in the proposed emission limits of Table 2.
\3\ The Hercules Aerospace Company--Plant #3 corresponds with the Hexcel Corporation in the proposed emission limits of Table 2.
\4\ Utah Power and Light--Gadsby, corresponds with PacifiCorp--Gadsby in the proposed emission limits of Table 2.


                         Table 2--Proposed Source Specific Emission Limitations in the Salt Lake County PM10 Nonattainment Area
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                             Concentration  based  Alternative  emission
               Source                       Pollutant             Process unit         Mass based limits            limits                 limits
--------------------------------------------------------------------------------------------------------------------------------------------------------
Big West Oil.......................  PM10..................  Facility Wide.........  1.037 tons per day
                                     NOX...................  Facility Wide.........   (tpd).
                                     SO2...................  Facility Wide.........  0.8 tpd..............
                                                                                     0.6 tpd..............
Bountiful City Light and Power.....  NOX...................  GT#1..................  0.6 g NOX/kW-hr.
                                     NOX...................  GT#2 and GT#3.........  7.5 lb NOX/hr........
Central Valley Water Reclamation     NOX...................  Facility Wide.........  0.648 tpd.
 Facility.
Chevron Products Company...........  PM10..................  Facility Wide.........  0.715 tpd.
                                     NOX...................  Facility Wide.........  2.1 tpd..............
                                     SO2...................  Facility Wide.........  1.05 tpd.............
Hexcel Corporations................  ......................  ......................  .....................  .....................  5.50 MMscf natural
                                                                                                                                    gas per day.
                                                                                                                                   0.061 MM pounds of
                                                                                                                                    carbon fiber
                                                                                                                                    produced per day.
Holly Refining and Marketing         PM10..................  Facility Wide.........  0.416 tpd.
 Company.                            NOX...................  Facility Wide.........  2.09 tpd.............
                                     SO2...................                          0.31 tpd.............
Kennecott Utah Copper: Bingham       ......................  ......................  .....................  .....................  Maximum of 30,000
 Canyon Mine.                                                                                                                       miles for waste haul
                                                                                                                                    trucks per day.
                                                                                                                                   Fugitive road dust
                                                                                                                                    emission control
                                                                                                                                    requirements.
Kennecott Copperton Concentrator...  ......................  ......................  .....................  .....................  Requirement to
                                                                                                                                    operate a gas
                                                                                                                                    scrubber operated in
                                                                                                                                    accordance with
                                                                                                                                    parametric
                                                                                                                                    monitoring.
Kennecott Utah Copper:.............  PM10..................  Power Plant Unit #5...  18.8 lb/hr.
 Power Plant and                     NOX...................  Power Plant Unit #5...  .....................  2.0 ppmdv (15% O2
                                                                                                             dry).
 Tailings Impoundment                NOX...................  Power Plant Unit #5     395 lb/hr.
                                                              Startup/Shutdown.
                                     PM10 (Filterable).....  Units #1, #2, #3, and   0.004 grains/dscf.
                                                              #4, Nov 1-Feb 28/29.
                                     PM10 (Filterable +      Units #1,# 2, #3, and   0.03 grains/dscf.
                                      Condensable).           #4, Nov 1-Feb 28/29.
                                     NOX...................  Units #1,# 2, and #3,   .....................  336 ppmdv (3% O2).
                                                              Nov 1-Feb 28/29.
                                     NOX...................  Unit #4, Nov 1-Feb 28/  .....................  336 ppmdv (3% O2).
                                                              29.
                                     PM10 (Filterable).....  Units #1,# 2, and #3,   0.029 grains/dscf.
                                                              Mar 1-Oct 1.
                                     PM10 (Filterable +      Units #1,# 2, and #3,   0.29 grains/dscf.
                                      Condensable).           Mar 1-Oct 1.
                                     PM10 (Filterable).....  Unit #4, Mar 1-Oct 1..  0.029 grains/dscf.
                                     NOX...................  Units #1,# 2, and #3,   .....................  426.5 ppmdv (3% O2)..
                                                              Mar 1-Oct 1.
                                     NOX...................  Unit #4, Mar 1-Oct 1..  .....................  384 ppmdv (3% O2)....
Kennecott Utah Copper: Smelter and   PM10 (Filterable).....  Main Stack............  89.5 lb/hr...........
 Refinery.
                                     PM10 (Filterable +      Main Stack............  439 lb/hr............
                                      Condensable).
                                     SO2 (3-hr rolling avg)  Main Stack............  552 lb/hr............
                                     SO2 (daily avg).......  Main Stack............  422 lb/hr............
                                     NOX (daily avg).......  Main Stack............  154 lb/hr............
                                     NOX...................  Refinery: Sum of 2      9.5 lb/hr............
                                                              tank house boilers.
                                     NOX...................  Refinery: Combined      5.96 lb/hr...........
                                                              Heat Plant.
                                     NOX...................  Molybdenum Autoclave    5.01 lb/hr...........
                                                              Project: Combined
                                                              Heat Plant.
PacifiCorp Energy: Gadsby Power      NOX...................  Steam Unit #1.........  179 lb/hr............
 Plant.

[[Page 32291]]

 
                                     NOX...................  Steam Unit #2.........  204 lb/hr............
                                     ......................  Steam Unit #3.........  142 lb./hr (Nov 1-Feb
                                     NOX...................                           28/29).
                                     NOX...................  Steam Unit #3.........  203 lb/hr (Mar 1-Oct
                                                                                      31).
Tesoro Refining and Marketing        PM10..................  Facility Wide.........  2.25 tpd.
 Company.                            NOX...................  Facility Wide.........  1.988 tpd............
                                     SO2...................  Facility Wide.........  3.1 tpd.
University of Utah.................  NOX...................  Boiler #3.............  .....................  9 ppmdv (3% O2 Dry).
                                                             Boiler #4a & #4b......  .....................  9 ppmdv (3% O2 Dry).
                                                             Boiler #5a & #5b......  .....................  9 ppmdv (3% O2 Dry).
                                                             Turbine...............  .....................  9 ppmdv (3% O2 Dry).
                                                             Turbine and WHRU Duct   .....................  15 ppmdv (3% O2 Dry).
                                                              burner.
West Valley Power \5\..............  NOX...................  Sum of all five         1,050 lb/day.
                                                              turbines.
--------------------------------------------------------------------------------------------------------------------------------------------------------
\5\ West Valley Power was not a listed source in the 1994 SIP for the Salt Lake County PM10 NAA.

    3. Subsection IX.H.3. Source Specific Emission Limitations in Utah 
County PM10 Nonattainment/Maintenance Area. This section 
establishes specific emission limitations for 6 sources. These sources 
are Brigham Young University (BYU); Geneva Nitrogen Inc.; PacifiCorp 
Energy: Lake Side Power Plant; Payson City Corporation: Payson City 
Power; Provo City Power: Power Plant; and Springville City Corporation: 
Whitehead Power Plant. Major stationary sources were identified based 
on their PTE of 100 tons per year (tpy) or more for PM10, 
NOX, and SO2. It is important to note that the 
SIP threshold of 100 tpy for all three pollutants is less than the 
previous SIP major stationary source thresholds Utah established in its 
2002 SIP revision. The 2002 SIP revision had established major 
stationary source thresholds for PM10, NOX, and 
SO2 at 100 tpy, 200 tpy, and 250 tpy, respectively. By 
lowering the SIP threshold to 100 tpy for all three pollutants, three 
sources are now added into the SIP. These sources are BYU, Payson City 
Power and PacifiCorp Energy--Lake Side Power Plant. PacifiCorp Energy--
Lake Side Power Plant sits on a portion of the former Geneva Steel 
site. A summary of the current emission limits, for retained sources, 
is outlined in Table 3 below, and a summary of the proposed new 
emission limits are outlined in Table 4 below.

                            Table 3--Current Source Specific Emission Limitations in the Utah County PM10 Nonattainment Area
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                             Concentration  based  Alternative  emission
               Source                       Pollutant             Process unit         Mass based limits            limits                 limits
--------------------------------------------------------------------------------------------------------------------------------------------------------
Geneva Nitrogen Inc: Geneva Plant..  PM10..................  Prill Tower...........  0.24 tpd.............
                                     NOX...................  Montecatini Plant.....  0.389 tpd............
                                     NOX...................  Weatherly Plant.......  0.233 tpd............
Provo City Power: Power Plant......  NOX...................  All engines combined..  2.45 tpd.............
Springville City Corporation:        NOX...................  All engines combined..  1.68 tpd.............
 Whitehead Power Plant.
--------------------------------------------------------------------------------------------------------------------------------------------------------


                            Table 4--Proposed Source Specific Emission Limitations in the Utah County PM10 Nonattainment Area
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                             Concentration  based  Alternative  emission
               Source                       Pollutant             Process unit         Mass based limits            limits                 limits
--------------------------------------------------------------------------------------------------------------------------------------------------------
Brigham Young University...........  NOX...................  Unit #1 \6\...........  9.55 lb/hr...........  95 ppmdv (7% O2 Dry).
                                     NOX...................  Unit #2...............  37.4 lb/hr...........  331 ppmdv (7% O2
                                                                                                             Dry).
                                     SO2...................  Unit #2...............  56.0 lb/hr...........  597 ppmdv (7% O2
                                                                                                             Dry).
                                     NOX...................  Unit #3...............  37.4 lb/hr...........  331 ppmdv (7% O2
                                                                                                             Dry).
                                     SO2...................  Unit #3...............  56.0 lb/hr...........  597 ppmdv (7% O2
                                                                                                             Dry).
                                     NOX...................  Unit #4 \7\...........  19.2 lb/hr...........  127 ppmdv (7% O2
                                                                                                             Dry).
                                     NOX...................  Unit #5...............  74.8 lb/hr...........  331 ppmdv (7% O2
                                                                                                             Dry).
                                     SO2...................  Unit #5...............  112.07 lb/hr.........  597 ppmdv (7% O2
                                                                                                             Dry).

[[Page 32292]]

 
                                     NOX...................  Unit #6 \7\...........  19.2 lb/hr...........  127 ppmdv (7% O2
                                                                                                             Dry).
Geneva Nitrogen Inc.: Geneva Plant.  PM10..................  Prill Tower...........  0.236 tpd............
                                     PM2.5.................  Prill Tower...........  0.196 tpd.
                                     NOX...................  Montecatini Plant.....  30.8 lb/hr.
                                     NOX...................  Weatherly Plant.......  18.4 lb/hr.
PacifiCorp Energy: Lakeside Power    NOX...................  Block #1 Turbine/HRSG   14.9 lb/hr.
 Plant.                                                       Stacks.
                                     NOX...................  Block #2 Turbine/HRSG   18.1 lb/hr.
                                                              Stacks.
Payson City Corporation: Payson      NOX...................  All engines combined..  1.54 tpd.
 City Power.
Provo City Power: Power Plant......  NOX...................  All engines combined..  2.45 tpd.
Springville City Corporation:        NOX...................  All engines combined..  1.68 tpd.
 Whitehead Power Plant.
--------------------------------------------------------------------------------------------------------------------------------------------------------
\6\ The NOX limit for Unit #1 is 95 ppm (9.55 lb/hr) until it operates for more than 300 hours during a rolling 12-month period, then the limit will be
  36 ppm (5.44 lb/hr). This will be accomplished through the installation of low NOX burners with Flue Gas Recirculation.
\7\ The NOX limit for Units #4 and #6 is 127 ppm (38.5 lb/hr) until December 31, 2018, at which time the limit will then be 36 ppm (19.2 lb/hr).

    4. Subsection IX.H.4. Interim Emission Limits and Operating 
Practices. R307-110-17 Section IX, Control Measures for Area and Point 
Sources, Part H, Emission Limits. This section establishes interim 
emission limits for sources whose new emission limits under Subsections 
IX.H.2 and 3 are based on controls that are not currently installed, 
with the provision that all necessary controls needed to meet the 
emission limits under Subsection IX.H.2 and IX.H.3 shall be installed 
by January 1, 2019. A summary of the proposed interim emission limits 
is outlined in Table 5 below.

                                            Table 5--Proposed Interim Emission Limits and Operating Practices
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                             Concentration based    Alternative emission
               Source                       Pollutant             Process unit         Mass based limits            limits                 limits
--------------------------------------------------------------------------------------------------------------------------------------------------------
Big West Oil.......................  PM10..................  Facility Wide.........  0.377 tpd Oct 1-March
                                                                                      31.
                                                                                     0.407 tpd April 1-
                                                                                      Sept 30.
                                     SO2...................  Facility Wide.........  2.764 tpd Oct 1-March
                                                                                      31.
                                                                                     3.639 tpd April 1-
                                                                                      Sept 30.
                                     NOX...................  Facility Wide.........  1.027 tpd Oct 1-Mar
                                                                                      31.
                                                                                     1.145 tpd Apr 1-Sep
                                                                                      30.
Chevron Products Company...........  PM10..................  Facility Wide.........  0.234 tpd.
                                     SO2...................  Facility Wide.........  0.5 tpd.
                                     NOX...................  Facility Wide.........  2.52 tpd.
Holly Refining and Marketing         PM10..................  Facility Wide.........  0.44 tpd.
 Company.
                                     SO2...................  Facility Wide.........  4.714 tpd.
                                     NOX...................  Facility Wide.........  2.20 tpd.
Tesoro Refining and Marketing        PM10..................  Facility Wide.........  0.261 tpd.
 Company.
                                     SO2...................  Facility Wide.........  3.699 tpd Nov 1-Feb
                                                                                      28/29.
                                                                                     4.374 tpd Mar 1-Oct
                                                                                      31.
                                     NOX...................  Facility Wide.........  1.988 tpd.
--------------------------------------------------------------------------------------------------------------------------------------------------------


[[Page 32293]]

IV. Consideration of Section 110(l) of the CAA

    Under section 110(l) of the CAA, the EPA cannot approve a SIP 
revision if the revision would interfere with any applicable 
requirements concerning attainment and reasonable further progress 
(RFP) toward attainment of the NAAQS, or any other applicable 
requirement of the Act. In addition, section 110(l) requires that each 
revision to an implementation plan submitted by a state shall be 
adopted by the state after reasonable notice and public hearing.
    The Utah SIP revisions that the EPA is proposing to approve do not 
interfere with any applicable requirements of the Act. The DAR section 
R307-110-17 and Subsection IX.H.1-4, submitted January 4, 2016, and 
January 19, 2017 are intended to strengthen the SIP. Therefore, CAA 
section 110(l) requirements are satisfied.
    Specifically, the proposed emission limits for the retained sources 
in the Salt Lake County nonattainment area will result in a reduction 
of PM10, SO2, and NOX emissions by 
10.64 tpd, 12.87 tpd and 29.97 tpd, respectively, when compared to the 
limits established in the original PM10 SIP. Given the large 
net decrease in emissions from the retained major stationary sources in 
the Salt Lake County nonattainment area, the proposed action will 
enhance the area's ability to attain or maintain the NAAQS.
    The proposed emissions from Geneva Nitrogen, Provo City Power 
Plant, and the Springville City Corporation--Whitehead Power Plant are 
consistent with the 2002 SIP revisions for Utah County. Additionally, 
this proposed action adds three sources--BYU, Payson City Power and 
PacifiCorp Energy--Lake Side Power Plant. Both BYU and Payson City 
Power have been in existence since the original 1994 SIP, and BYU was 
initially included as a source in the original 1994 SIP, but was 
removed in 2002. The inclusion of these two sources do not reflect an 
increase in emissions into the Utah County nonattainment area airshed, 
but rather reflect a change in the approach of how stationary sources 
are included into the SIP. PacifiCorp Energy--Lake Side Power Plant is 
also being added into the SIP, but its addition does not reflect an 
emissions increase to the nonattainment area because the facility was 
required to use offsetting emissions, largely made available through 
the closure of the Geneva Steel facility. The closing of Geneva Steel 
resulted in the removal of approximately 1,700 tpy PM10, 
1,400 tpy SO2, and 4,200 tpy NOX from the Utah 
County airshed. These emission reductions were banked and made 
available for purchase for future major source construction and 
modifications. In order to construct the Lakeside Power Plant, banked 
emission credits were purchased and used at an offset ratio of 1.2:1 
(e.g. For every 1.0 tpy of emissions allowed at the Lakeside Power 
Plant, 1.2 tpy of banked emission credits must be spent from the Utah 
emissions credit offset registry.). In total the Lakeside Power Plant 
utilized banked emission credits for PM10, SO2, 
and NOX in the amounts of 257 tpy, 66 tpy, and 337 tpy, 
respectively. Given the offset ratio required for the construction of 
the Lakeside Power Plant, the inclusion of this source into the SIP 
does not result in any emissions increase to the Utah County airshed, 
and actually reflects a net decrease from the 2002 SIP. As a result of 
the decreased emissions from the closure of the Geneva Steel facility, 
and the offsetting ratio required to construct the Lake Side Power 
Plant, the proposed revision to the Utah County PM10 SIP 
will enhance the area's ability to attain or maintain the NAAQS.

V. Summary of Proposed Action and Request for Public Comment

    The EPA is proposing approval and requesting public comment on 
revisions to Administrative Rule R307-110-17 and revisions to 
Subsection IX.H.1-4 as submitted by the State of Utah on January 4, 
2016, and January 19, 2017. These revisions establish emissions 
limitations and related requirements for certain stationary sources of 
PM10, NOX and SO2, and will therefore 
serve to continue progress towards attainment and maintenance of the 
PM10 NAAQS in the nonattainment areas. The proposed 
revisions reflect more stringent emission levels for total emissions of 
PM10, SO2, and NOX for each of the 
affected facilities, as well as updates the inventory of major 
stationary sources to accurately reflect the current sources in both 
the Salt Lake County and Utah County nonattainment areas (e.g., 
removing sources which no longer exist, or are now covered under an 
area source rule). The updated list of sources and revised emission 
limits for the major stationary sources in the two nonattainment areas 
will serve to enhance both area's ability to attain or maintain the 
NAAQS.

VI. Incorporation by Reference

    In this rule, the EPA is proposing to include in a final EPA rule 
regulatory text that includes incorporation by reference. In accordance 
with requirements of 1 CFR 51.5, the EPA is proposing to incorporate by 
reference the DAQ PM10 SIP revisions as discussed in section 
III of this preamble. The EPA has made, and will continue to make, 
these materials generally available through www.regulations.gov and/or 
at the EPA Region 8 Office (please contact the person identified in the 
FOR FURTHER INFORMATION CONTACT section of this preamble for more 
information).

VII. Statutory and Executive Order Reviews

    Under the CAA, the Administrator is required to approve a SIP 
submission that complies with the provisions of the Act and applicable 
federal regulations. 42 U.S.C. 7410(k); 40 CFR 52.02(a). Thus, in 
reviewing SIP submissions, the EPA's role is to approve state choices, 
provided that they meet the criteria of the CAA. Accordingly, this 
action merely proposes to approve state law as meeting federal 
requirements and does not impose additional requirements beyond those 
imposed by state law. For that reason, this proposed action:
     Is not a ``significant regulatory action'' subject to 
review by the Office of Management and Budget under Executive Order 
12866 (58 FR 51735, October 4, 1993);
     does not impose an information collection burden under the 
provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.);
     is certified as not having a significant economic impact 
on a substantial number of small entities under the Regulatory 
Flexibility Act (5 U.S.C. 601 et seq.);
     does not contain any unfunded mandate or significantly or 
uniquely affect small governments, as described in the Unfunded 
Mandates Reform Act of 1995 (Public Law 104-4);
     does not have federalism implications as specified in 
Executive Order 13132 (64 FR 43255, August 10, 1999);
     is not an economically significant regulatory action based 
on health or safety risks subject to Executive Order 13045 (62 FR 
19885, April 23, 1997);
     is not a significant regulatory action subject to 
Executive Order 13211 (66 FR 28355, May 22, 2001);
     is not subject to requirements of Section 12(d) of the 
National Technology Transfer and Advancement Act of 1995 (15 U.S.C. 272 
note) because application of those requirements would be inconsistent 
with the CAA; and
     does not provide the EPA with the discretionary authority 
to address, as appropriate, disproportionate human health or 
environmental effects, using practicable and legally permissible 
methods, under Executive Order 12898 (59 FR 7629, February 16, 1994).

[[Page 32294]]

    In addition, the SIP is not approved to apply on any Indian 
reservation land or in any other area where the EPA or an Indian tribe 
has demonstrated that a tribe has jurisdiction. In those areas of 
Indian country, the proposed rule does not have tribal implications and 
will not impose substantial direct costs on tribal governments or 
preempt tribal law as specified by Executive Order 13175 (65 FR 67249, 
November 9, 2000).

List of Subjects in 40 CFR Part 52

    Environmental protection, Air pollution control, Ammonia, 
Incorporation by reference, Intergovernmental relations, Nitrogen 
dioxide, Particulate matter, Reporting and recordkeeping requirements, 
Sulfur dioxide, Volatile organic compounds.

    Authority: 42 U.S.C. 7401 et seq.

    Dated: June 30, 2017.
Debra H. Thomas,
Acting Regional Administrator, Region 8.
[FR Doc. 2017-14748 Filed 7-12-17; 8:45 am]
 BILLING CODE 6560-50-P


