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Federal Register / Vol. 86, No. 87 / Friday, May 7, 2021 / Proposed Rules
The written comment is considered the official comment and should include discussion of all points you wish to make. 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, please contact the person identified in the FOR FURTHER
INFORMATION CONTACT section. For 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:
Katie Mullen, Environmental Engineer, Attainment Planning and Maintenance Section, Air Programs Branch AR18J, Environmental Protection Agency, Region 5, 77 West Jackson Boulevard, Chicago, Illinois 60604, 312 3533490, mullen.kathleen@epa.gov. The EPA
Region 5 office is open from 8:30 a.m.
to 4:30 p.m., Monday through Friday, excluding Federal holidays and facility closures due to COVID19.
SUPPLEMENTARY INFORMATION:
Throughout this document whenever we, us, or our is used, we mean EPA. This supplementary information section is arranged as follows:
I. What is EPA proposing?
II. What is the background for this action?
III. What is EPAs evaluation of Illinois VOC
RACT submittal?
IV. What action is EPA taking?
V. Incorporation by Reference VI. Statutory and Executive Order Reviews
I. What is EPA proposing?
EPA is proposing to approve VOC
RACT SIP revisions submitted by Illinois on January 10, 2019 and supplemented on April 30, 2020. EPA is also proposing to approve the Stepan Co. construction permit submitted by Illinois on March 29, 2021 as a revision to the Illinois SIP, making the throughput limits federally enforceable.
These revisions satisfy the moderate VOC RACT requirements of section 182b2 of the CAA for the Illinois portion under the 2008 8-hour ozone standard.
II. What is the background for this action?
VOCs contribute to the production of ground-level ozone, or smog, which harms human health and the environment. Sections 172c1 and 182b2 of the CAA require states to implement RACT in ozone nonattainment areas classified as moderate and higher. Specifically, these areas are required to implement
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RACT for all major VOC sources and for all sources covered by a Control Techniques Guideline CTG. A CTG is a document issued by EPA which establishes a presumptive norm for RACT for a specific VOC source category. States must submit rules, or negative declarations when no such sources exist for CTG source categories.
EPAs SIP Requirements Rule for the 2008 ozone NAAQS indicates that states may meet RACT through the establishment of new or more stringent requirements that meet RACT control levels, through a certification that previously adopted RACT controls in their SIPs approved by EPA for a prior ozone NAAQS also represent adequate RACT control levels for attainment of the 2008 ozone NAAQS, or with a combination of these two approaches.
See 80 FR 12,264, 12,27879 Mar. 6, 2015. As stated above, a state may submit a negative declaration in instances where there are no CTG
sources.
On June 11, 2012, EPA designated the Chicago-Naperville, IL-IN-WI
nonattainment area as a marginal nonattainment area for the 2008 ozone NAAQS 77 FR 34221. The Illinois portion includes Cook, DuPage, Kane, Lake, McHenry, and Will Counties and parts of Grundy and Kendall Counties.
On May 4, 2016, pursuant to section 181b2 of the CAA, EPA determined that the Chicago-Naperville, IL-IN-WI
nonattainment area failed to attain the 2008 ozone NAAQS by the July 20, 2015, marginal area attainment deadline and thus reclassified the area from marginal to moderate nonattainment 81
FR 26697. In that action, EPA
established January 1, 2017, as the due date for the state to submit all moderate area nonattainment plan SIP
requirements applicable to newly reclassified areas. On August 23, 2019, pursuant to section 181b2 of the CAA, EPA determined that the ChicagoNaperville, IL-IN-WI nonattainment area failed to attain the 2008 ozone NAAQS
by the July 20, 2018, moderate area attainment deadline and thus reclassified the area from moderate to serious nonattainment 84 FR 44238. In that action, EPA established August 3, 2020 and March 23, 2021 as the due dates for serious area nonattainment plan SIP submissions for newly reclassified areas. This action only addresses the moderate VOC RACT SIP
submissions.
III. What is EPAs evaluation of Illinois VOC RACT submittal?
Illinois previously addressed RACT
requirements for the Illinois portion under the 1979 and 1997 ozone
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standards 45 FR 11472, 52 FR 45333, 59 FR 46562, and 77 FR 16940. Illinois VOC RACT rules for the Illinois portion are contained in 35 Ill. Adm. Code Part 218 Part 218. Illinois has evaluated the regulations previously approved by EPA
and determined that these rules continue to satisfy RACT requirements under the 2008 ozone NAAQS.
The rules in Part 218 include rules addressing CTG categories adopted by EPA through 2018 for which there are existing sources in the Illinois portion.
Negative declarations for other CTG
categories are detailed below.
Major non-CTG VOC sources, which are subject to RACT, are stationary sources that have the potential to emit PTE at least 100 tons per year TPY of VOCs in moderate ozone nonattainment areas and are not subject to the applicability criteria in the CTGs. Many major non-CTG VOC sources located in the ozone nonattainment area that are not subject to specific RACT rules are subject to generic RACT rules. Thus, Illinois has met the obligation to implement RACT for many major nonCTG VOC sources in the Illinois portion with SIP-approved regulations under Part 218 subparts PP, QQ, RR, and TT.
Illinois has previously submitted several negative declarations for CTG
categories for which there were no applicable sources found in Illinois that meet the applicability criteria for those CTGs. In those cases, it was unnecessary to adopt new state rules and submit SIP
revisions to address those CTG
categories. Illinois has determined that these negative declarations are still valid and appropriate for the CTGs for the Shipbuilding and Ship Repair Industry, Natural Gas/Gasoline Processing Plants, Aerospace Manufacturing and Rework Facilities, High-Density Polyethylene/
Polypropylene Manufacturing, Vegetable Oil Processing, and Oil and Natural Gas Industry.
Shipbuilding and Ship Repair Industry On November 11, 1996, Illinois submitted to EPA a negative declaration letter for the Ship Building and Ship Repair Industry. This CTG applies to sources with potential emissions greater than or equal to 25 tons of VOC per year for this category. Illinois determined that there were no such sources in the Illinois portion of the nonattainment area.
Illinois reviewed its most recent inventory to determine if any sources fall under this category. Illinois found four sources that required further review. All four of these sources are barge cleaning sources with VOC
emissions limitations under 25 TPY.

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