4508 Federal Register / Vol. 87, No. 19 / Friday, January 28, 2022 / Rules and Regulations 

2018, for San Joaquin Valley with 

respect to the 1997 24-hour PM2.5

NAAQS. 

* * * * * 

■ 4. Section 52.244 is amended by 

adding paragraph (f)(3) to read as 

follows: 

§ 52.244 Motor vehicle emissions budgets. 

* * * * * 

(f) * * * 

(3) San Joaquin Valley, for the 1997 

24-hour PM2.5 NAAQS only (years 2017 

and 2020 budgets only), approved 

February 28, 2022. 

■ 5. Section 52.247 is amended by 

adding paragraph (p) to read as follows: 

§ 52.247 Control Strategy and regulations: 

Fine Particle Matter. 

* * * * * 

(p) Determination of Attainment: 

Effective February 28, 2022, the EPA has 

determined that, based on 2018 to 2020 

ambient air quality data, the San 

Joaquin Valley PM2.5 nonattainment 

area has attained the 1997 24-hour PM2.5

NAAQS by the applicable attainment 

date of December 31, 2020. Therefore, 

the EPA has met the requirement 

pursuant to CAA sections 179(c)(1) and 

188(b)(2) to determine whether the area 

attained the standard. The EPA has also 

determined that, based on the 

determination of attainment by the 

applicable attainment date, the 

requirement of CAA section 172(c)(9) to 

provide for contingency measures no 

longer applies to the San Joaquin Valley 

area for the 1997 24-hour PM2.5 NAAQS. 

[FR Doc. 2022–01728 Filed 1–27–22; 8:45 am] 

BILLING CODE 6560–50–P 

ENVIRONMENTAL PROTECTION 

AGENCY 

40 CFR Parts 52 and 81 

[EPA–R07–OAR–2021–0391; FRL–8693–02– 

R7] 

Air Plan Approval; Missouri 

Redesignation Request and 

Associated Maintenance Plan for the 

Jefferson County 2010 SO2 1-Hour 

NAAQS Nonattainment Area 

AGENCY: Environmental Protection 

Agency (EPA). 

ACTION: Final rule. 

SUMMARY: On December 27, 2017, the 

State of Missouri submitted a request for 

the Environmental Protection Agency 

(EPA) to redesignate the Jefferson 

County, Missouri, 2010 1-hour sulfur 

dioxide (SO2) National Ambient Air 

Quality Standard (NAAQS) 

nonattainment area to attainment and to 

approve a State Implementation Plan 

(SIP) revision containing a maintenance 

plan for the area. The State provided 

supplemental information on: May 15, 

2018; February 7, 2019; February 25, 

2019; and April 9, 2021. In response to 

these submittals, the EPA is taking the 

following final actions: Approve the 

State’s plan for maintaining attainment 

of the 2010 1-hour SO2 primary 

standard in the area; and approve the 

State’s request to redesignate the 

Jefferson County SO2 nonattainment 

area to attainment for the 2010 1-hour 

SO2 primary standard. 

DATES: This final rule is effective on 

February 28, 2022. 

ADDRESSES: The EPA has established a 

docket for this action under Docket ID 

No. EPA–R07–OAR–2021–0391. All 

documents in the docket are listed on 

the https://www.regulations.gov 

website. Although listed in the index, 

some information is not publicly 

available, i.e., confidential business 

information (CBI) or other information 

whose disclosure is restricted by statute. 

Certain other material, such as 

copyrighted material, is not placed on 

the internet and will be publicly 

available only in hard copy form. 

Publicly available docket materials are 

available through https://

www.regulations.gov or please contact 

the person identified in the FOR FURTHER

INFORMATION CONTACT section for 

additional information. 

FOR FURTHER INFORMATION CONTACT: 

Ashley Keas, Environmental Protection 

Agency, Region 7 Office, Air Quality 

Planning Branch, 11201 Renner 

Boulevard, Lenexa, Kansas 66219 at 

(913) 551–7629 or by email at 

keas.ashley@epa.gov. 

SUPPLEMENTARY INFORMATION: 

Throughout this document ‘‘we,’’ ‘‘us,’’ 

and ‘‘our’’ refer to the EPA. 

Table of Contents 

I. What is being addressed in this document? 

II. The EPA’s Responses to Comments 

III. Have the requirements for approval of a 

SIP revision been met? 

IV. What are the actions the EPA is taking? 

V. Environmental Justice Concerns 

VI. Incorporation by Reference 

VII. Statutory and Executive Order Reviews 

I. What is being addressed in this 

document? 

On December 27, 2017, the State 

submitted a request for redesignation of 

the Jefferson County SO2 nonattainment 

area to attainment and a SIP revision 

containing a 10-year maintenance plan 

for the area. On May 15, 2018, the State 

submitted a clarifying letter that 

Appendix A (containing the emissions 

inventory for the area) and Appendix B 

(containing a Consent Agreement 

entered between Missouri and Ameren 

sources in the area) of the SIP submittal 

should be considered part of the SIP 

revision request. On February 7, 2019, 

and February 25, 2019, the State 

submitted supplemental modeling 

information to the EPA. On April 9, 

2021, the State submitted an addendum 

to the Consent Agreement which 

contains the emissions limits and 

monitoring, reporting, and 

recordkeeping requirements needed to 

determine compliance with the 

emissions limits for the covered sources. 

The EPA’s proposal at 86 FR 34177 

[June 29, 2021] discusses the EPA’s 

review of the redesignation request, the 

maintenance plan (including Consent 

Agreement and addendum), and the 

supplemental information and provides 

support for the EPA’s proposed 

approval of the request to redesignate 

the area to attainment and for proposed 

approval of the 10-year maintenance 

plan. Additional analysis of the 

redesignation request, 10-year 

maintenance plan, Consent Agreement 

and addendum, and supplemental 

modeling information is provided in a 

Technical Support Document (TSD) 

included in this docket. The public 

comment period on the EPA’s proposed 

rule opened on June 29, 2021, the date 

of its publication in the Federal 

Register, and closed on July 29, 2021. 

During this period, the EPA received 

one comment. The EPA additionally 

received a request to extend the 

comment period due to the technical 

support document being added to the 

docket partway through the comment 

period. Therefore, the EPA reopened the 

comment period on August 17, 2021, 

and closed on September 16, 2021 (86 

FR 45950). During this second comment 

period, the EPA received one additional 

comment. Both comments are addressed 

in section II. 

II. The EPA’s Responses to Comments 

Comment 1: On July 29, 2021, the 

EPA received a comment from Ameren 

Missouri. The comment was largely 

supportive of the EPA’s proposed 

redesignation of the Jefferson County 

area. Ameren also identified minor 

clarifications and corrections needed in 

the TSD. Specifically, Ameren noted 

that the TSD incorrectly stated that 

meteorological data was from the 

Weaver monitor when in fact the 

Weaver monitor does not collect 

meteorological data. 

Response 1: The EPA updated this 

reference to the Johnson Tall Tower, the 

source of the meteorological data 

underlying the pollution rose on page 


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Federal Register / Vol. 87, No. 19 / Friday, January 28, 2022 / Rules and Regulations 4509 

1While the term ‘‘SO2 Monitoring Network’’ is 

not defined in the Consent Agreement, the 

maintenance plan identifies the ‘‘SO2 Monitoring 

Network’’ to include the following monitors 

operated by Ameren: Weaver Road & Highway AA, 

Natchez, and Fults. 

28 of the revised TSD, included in the 

docket for this action. 

Comment 2: On September 16, 2021, 

the EPA received one comment from the 

Missouri Department of Natural 

Resources. The comment requested the 

EPA clarify statements in the proposed 

rule regarding the need for a SIP 

revision to remove monitoring 

requirements for the industrial 

monitoring sites located around Rush 

Island. Missouri references Appendix 1 

to the Consent Agreement, Additional 

QAPP Components, which includes the 

process for discontinuing any of the 

monitors around Rush Island, and states 

that the EPA’s approval of this Quality 

Assurance Project Plan (QAPP) into the 

SIP renders a SIP revision unnecessary 

to discontinue the operation of a 

monitor. Missouri requests that the EPA 

clarify that the monitors may be 

discontinued per the requirements of 

the Consent Agreement without the 

need for a SIP revision. 

Response 2: The EPA agrees with 

Missouri that the Appendix to the 

Consent Agreement contains a QAPP 

that outlines criteria that must be met in 

order for Ameren to request 

discontinuation of a monitor in the SO2

Monitoring Network.1 Specifically, the 

Consent Agreement and QAPP outline 

criteria to be submitted by Ameren to 

Missouri in order to request monitor 

discontinuation. The EPA agrees that 

our approval of the Consent Agreement 

and QAPP into Missouri’s SIP does 

allow Missouri to follow the process 

outlined in the Consent Agreement and 

QAPP for discontinuation of a monitor 

in Ameren’s SO2 Monitoring Network. 

To clarify the EPA’s position as stated 

in the proposed rule, if a monitor in the 

SO2 Monitoring Network is removed, a 

SIP revision would be triggered to 

update certain aspects of the 

maintenance plan that relied upon the 

operation of the monitor. 

Specifically, Missouri would need to 

update the contingency plan triggers as 

relied upon in the maintenance plan 

and Consent Agreement. Additionally, 

and as discussed further below, 

Missouri must still be able to 

demonstrate that they meet the 

requirements for an appropriate 

monitoring network in the area and an 

appropriate method for verifying 

continued attainment throughout the 

maintenance area for the duration of the 

maintenance period. 

Contingency Measures 

The Consent Agreement that the EPA 

is approving into the SIP requires 

Ameren to install and operate an SO2

Monitoring Network at locations 

representative of the impacts of Rush 

Island’s emissions and includes specific 

requirements to be undertaken by 

Ameren should a monitor within the 

SO2 Monitoring Network record an 

elevated concentration. As the EPA 

explained in the proposed rule, the EPA 

interprets these requirements to be 

contingency measures for purposes of 

Clean Air Act (CAA) section 175A. 

Additionally, the maintenance plan 

includes contingency plan triggers and 

requirements applicable to entities 

responsible for elevated values recorded 

in the Jefferson County maintenance 

area. This includes the Mott Street 

Monitor as well as the Weaver Monitor 

located within the maintenance area 

near Rush Island. 

Monitoring Network Commitment and 

Verification of Continued Attainment 

In addition, Missouri commits in the 

maintenance plan to continued 

operation of the ‘‘appropriate SO2

network’’ in the Jefferson County 

maintenance area and describes how the 

SO2 monitoring network was expanded 

in accordance with the Consent 

Agreement to include the Weaver Road 

& Highway AA, Natchez, and Fults 

monitors. The maintenance plan states 

that the SO2 monitoring network is 

reviewed annually through the Annual 

Network Monitoring Plan pursuant 40 

CFR part 58, and any discontinuation or 

relocation of the monitors would require 

review and approval by the EPA. 

The EPA agrees with Missouri that 

any proposed network modification of 

State or Local Area Monitoring Stations 

(SLAMS) is subject to the approval of 

the EPA Regional Administrator. For 

SLAMs that operate in a maintenance 

area, 40 CFR 58.14(c)(1) states that, 

‘‘. . . if the most recent attainment or 

maintenance plan adopted by the State 

and approved by EPA contains a 

contingency measure to be triggered by 

an air quality concentration and the 

monitor to be discontinued is the only 

SLAMS monitor operating in the 

nonattainment or maintenance area, the 

monitor may not be discontinued.’’ This 

provision would apply to the Mott 

Street monitor, as it is the only SO2

SLAMS operating within the Jefferson 

County area. 

The industrial source monitors 

operated by Ameren are not required to 

meet the discontinuation criteria or 

process outlined for SLAMS monitors in 

40 CFR part 58. However, these 

monitors characterize the air quality 

around the largest remaining source in 

the area, Rush Island, and certain 

concentration levels recorded by these 

monitors trigger contingency provisions 

per the maintenance plan and Consent 

Agreement. If Ameren were to request 

discontinuation of these industrial 

source monitors, the Consent Agreement 

would allow Missouri to approve such 

request without approval from the EPA. 

However, discontinuation of a monitor 

would impact the state’s ability to meet 

the requirement for verification of 

continued attainment and Missouri’s 

commitment to operating an appropriate 

monitoring network in the area, thereby 

materially changing Missouri’s 

maintenance plan and the basis for the 

EPA’s approval of Missouri’s 

maintenance plan. 

The EPA therefore disagrees with the 

commenter concerning whether a SIP 

revision is necessary if a monitor is 

discontinued pursuant to the terms of 

the Consent Agreement and finds that if 

a monitor is discontinued in the area, 

Missouri would need to revise the 

federally approved maintenance plan 

and include a justification for removal 

of the monitor in order to meet the 

requirements of section 110(l) of the 

CAA. The EPA expects that removal of 

a monitor would require a 

demonstration that the contingency 

provisions are adequately triggered in 

the absence of the monitor. In addition, 

Missouri must demonstrate that an 

appropriate SO2 monitoring network 

remains in place in the maintenance 

area and that the maintenance plan still 

meets the requirement for verification of 

continued attainment under section 

175A. 

III. Have the requirements for approval 

of a SIP revision been met? 

The State submission has met the 

public notice requirements for SIP 

submissions in accordance with 40 CFR 

51.102. The submission also satisfied 

the completeness criteria of 40 CFR part 

51, appendix V. The State provided 

public notice on the December 2017 SIP 

submittal from July 31, 2017, to 

September 7, 2017 and held a public 

hearing on August 31, 2017. The State 

received and addressed nineteen 

combined comments from a total of five 

sources. The State revised the 

maintenance plan based on public 

comment prior to submitting to the EPA. 

On April 9, 2021, Missouri submitted 

a supplement to the SIP revision to the 

EPA consisting of an addendum to the 

Consent Agreement between Ameren 

and Missouri. The Consent Agreement 

addendum incorporates monitoring, 

reporting and recordkeeping 


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4510 Federal Register / Vol. 87, No. 19 / Friday, January 28, 2022 / Rules and Regulations 

requirements needed to make the 

emissions limits contained in the 

Consent Agreement practically 

enforceable. Missouri held a public 

hearing for this SIP supplement on 

January 28, 2021, and made the 

supplement available for public review 

and comment from December 28, 2020, 

through February 4, 2021. Missouri 

received supportive comments from 

Ameren. 

In addition, as explained in the EPA’s 

proposed rule (and in more detail in the 

technical support document which is 

included in the docket for this action), 

the revision meets the substantive SIP 

requirements of the CAA, including 

section 110 and implementing 

regulations. 

IV. What are the actions the EPA is 

taking? 

The EPA is taking final action to 

approve the maintenance plan for the 

Jefferson County 2010 SO2 1-hour 

NAAQS nonattainment area into the 

Missouri SIP (as compliant with CAA 

section 175A). The maintenance plan 

demonstrates that the area will continue 

to maintain the 2010 1-hour SO2

NAAQS and includes contingency 

provisions to remedy any future 

violations of the 2010 1-hour SO2

NAAQS and procedures for evaluation 

of potential violations. 

Additionally, the EPA is taking final 

action to determine that the Jefferson 

County 2010 SO2 1-hour NAAQS 

nonattainment area has met the criteria 

under CAA section 107(d)(3)(E) for 

redesignation from nonattainment to 

attainment for the 2010 1-hour SO2

NAAQS. On this basis, the EPA is 

approving Missouri’s redesignation 

request for the area and changing the 

legal designation of the portion of 

Jefferson County designated 

nonattainment at 40 CFR part 81 to 

attainment for the 2010 1-hour SO2

NAAQS. 

V. Environmental Justice Concerns 

When the EPA establishes a new or 

revised NAAQS, the CAA requires the 

EPA to designate all areas of the U.S. as 

either nonattainment, attainment, or 

unclassifiable. Area designations 

address environmental justice concerns 

by ensuring that the public is properly 

informed about the air quality in an 

area. If an area is designated 

nonattainment of the NAAQS, the CAA 

provides for the EPA to redesignate the 

area to attainment upon a demonstration 

by the state authority that air quality is 

attaining the NAAQS and will continue 

to maintain the NAAQS in order to 

ensure that all those residing, working, 

attending school, or otherwise present 

in those areas are protected, regardless 

of minority and economic status. 

The EPA utilized the EJSCREEN tool 

to evaluate environmental and 

demographic indicators within the area. 

The tool outputs are contained in the 

docket for this action. While the EPA’s 

EJSCREEN tool demonstrates that 

demographic indicators are consistent 

or lower than national averages, there 

are vulnerable populations in the area 

including low-income populations and 

persons over 64 years of age. 

This action addresses a redesignation 

determination for the Jefferson County, 

Missouri area. Under CAA section 

107(d)(3), the redesignation of an area to 

attainment is an action that affects the 

status of a geographical area and does 

not impose any additional regulatory 

requirements on sources beyond those 

imposed by state law. As discussed in 

this document and the associated 

technical support document, Missouri 

has demonstrated that the air quality in 

the Jefferson County area is attaining the 

NAAQS and will continue to maintain 

the NAAQS. For these reasons, this 

action does not result in 

disproportionately high and adverse 

human health or environmental effects 

on minority populations, low-income 

populations and/or indigenous peoples. 

VI. Incorporation by Reference 

In this document the EPA is 

amending regulatory text that includes 

incorporation by reference. In 

accordance with the requirements of 1 

CFR 51.5, the EPA is finalizing 

incorporation by reference of the 

Missouri State Implementation Plan 

described in the amendments to 40 CFR 

part 52 set forth below. The EPA has 

made, and will continue to make, these 

materials generally available through 

www.regulations.gov and at the EPA 

Region 7 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, redesignation of an 

area to attainment and the 

accompanying approval of a 

maintenance plan are actions that affect 

the status of a geographical area and do 

not impose any additional regulatory 

requirements on sources beyond those 

imposed by state law. A redesignation to 

attainment does not in and of itself 

create any new requirements, but rather 

results in the applicability of 

requirements contained in the CAA for 

areas that have been redesignated to 

attainment. Moreover, the Administrator 

is required to approve a SIP submission 

that complies with the provisions of the 

CAA and applicable Federal regulations. 

42 U.S.C. 7410(k); 40 CFR 52.02(a). 

Thus, in reviewing SIP submissions, 

EPA’s role is to approve state choices, 

provided that they meet the criteria of 

the CAA. Accordingly, this action 

merely approves state law as meeting 

Federal requirements and does not 

impose additional requirements beyond 

those imposed by state law. For these 

reasons, this action: 

• Is not a significant regulatory action 

subject to review by the Office of 

Management and Budget under 

Executive Orders 12866 (58 FR 51735, 

October 4, 1993) and 13563 (76 FR 3821, 

January 21, 2011); 

• 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 (Pub. L. 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 the 

National Technology Transfer and 

Advancement Act (NTTA) because this 

rulemaking does not involve technical 

standards; and 

• This action does not have 

disproportionately high and adverse 

human health or environmental effects 

on minority populations, low-income 

populations and/or indigenous peoples, 

as specified in Executive Order 12898 

(59 FR 7629, February 16, 1994). The 

basis for this determination is contained 

in Section V of this action, 

‘‘Environmental Justice Concerns.’’ 

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 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). 


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Federal Register / Vol. 87, No. 19 / Friday, January 28, 2022 / Rules and Regulations 4511 

The Congressional Review Act, 5 

U.S.C. 801 et seq., as added by the Small 

Business Regulatory Enforcement 

Fairness Act of 1996, generally provides 

that before a rule may take effect, the 

agency promulgating the rule must 

submit a rule report, which includes a 

copy of the rule, to each House of the 

Congress and to the Comptroller General 

of the United States. EPA will submit a 

report containing this action and other 

required information to the U.S. Senate, 

the U.S. House of Representatives, and 

the Comptroller General of the United 

States prior to publication of the rule in 

the Federal Register. A major rule 

cannot take effect until 60 days after it 

is published in the Federal Register. 

This action is not a ‘‘major rule’’ as 

defined by 5 U.S.C. 804(2). 

Under section 307(b)(1) of the CAA, 

petitions for judicial review of this 

action must be filed in the United States 

Court of Appeals for the appropriate 

circuit by March 29, 2022. Filing a 

petition for reconsideration by the 

Administrator of this final rule does not 

affect the finality of this action for the 

purposes of judicial review nor does it 

extend the time within which a petition 

for judicial review may be filed and 

shall not postpone the effectiveness of 

such rule or action. This action may not 

be challenged later in proceedings to 

enforce its requirements (see section 

307(b)(2)). 

List of Subjects 

40 CFR Part 52 

Environmental protection, Air 

pollution control, Incorporation by 

reference, Maintenance plan, 

Redesignation, Sulfur oxides. 

40 CFR Part 81 

Environmental protection, Air 

pollution control, Designations, 

Intergovernmental relations, 

Redesignation, Reporting and 

recordkeeping requirements, Sulfur 

oxides. 

Dated: January 14, 2022. 

Meghan A. McCollister, 

Regional Administrator, Region 7. 

For the reasons stated in the 

preamble, EPA amends 40 CFR parts 52 

and 81 as set forth below: 

PART 52—APPROVAL AND 

PROMULGATION OF 

IMPLEMENTATION PLANS 

■ 1. The authority citation for part 52 

continues to read as follows: 

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

Subpart AA—Missouri 

■ 2. In § 52.1320: 

■ a. The table in paragraph (d) is 

amended by adding the entry ‘‘(34)’’ in 

numerical order. 

■ b. The table in paragraph (e) is 

amended by adding the entry ‘‘(81)’’ in 

numerical order. 

The additions read as follows: 

§ 52.1320 Identification of plan. 

* * * * * 

(d) * * * 

EPA-APPROVED MISSOURI SOURCE-SPECIFIC PERMITS AND ORDERS

Name of source Order/permit 

number 

State effective 

date EPA approval date Explanation 

*******

(34) Ameren Missouri ...................... Consent Agreement and Addendum No. APCP–2015–034.12/14/2020 1/28/2022 [insert Federal Register 

citation].

........................

(e) * * * 

EPA-APPROVED MISSOURI NONREGULATORY SIP PROVISIONS

Name of nonregulatory 

SIP revision 

Applicable 

geographic or 

nonattainment area 

State submittal 

date EPA approval date Explanation 

*******

(81) Jefferson County 1- 

hour SO2 NAAQS 

Maintenance Plan and 

Supplemental Modeling Analyses.

Jefferson County .......... 12/27/17; 5/15/ 

18; 2/7/19; 2/ 

25/19; and 4/ 

9/21 

1/28/2022, [insert Federal Register citation].This action approves the Maintenance Plan and 

the Supplemental Modeling Analyses for the 

Jefferson County area. 

■ 3. In § 52.1343, add paragraph (c) to 

read as follows: 

§ 52.1343 Control strategy: Sulfur dioxide. 

* * * * * 

(c) Redesignation to attainment. As of 

February 28, 2022, the Jefferson County 

2010 SO2 nonattainment area is 

redesignated to attainment of the 2010 

SO2 1-hour National Ambient Air 

Quality Standard (NAAQS) in 

accordance with the requirements of 

Clean Air Act (CAA) section 107(d)(3) 

and EPA has approved its maintenance 

plan and supplemental modeling 

demonstration analyses as meeting the 

requirements of CAA section 175A. 

PART 81—DESIGNATION OF AREAS 

FOR AIR QUALITY PLANNING 

PURPOSES 

■ 4. The authority citation for part 81 

continues to read as follows: 

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


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4512 Federal Register / Vol. 87, No. 19 / Friday, January 28, 2022 / Rules and Regulations 

Subpart C—Section 107 Attainment 

Status Designations 

■ 5. In § 81.326, revise the entry 

‘‘Jefferson County, MO’’ in the table 

entitled ‘‘Missouri—2010 Sulfur 

Dioxide NAAQS [Primary]’’ to read as 

follows: 

§ 81.326 Missouri. 

* * * * * 

MISSOURI—2010 SULFUR DIOXIDE NAAQS 

[Primary] 

Designated area 1

Designation 

Date 2 Type 

*******

Jefferson County, MO ........................................................................................................................................... 2/28/2022 Attainment. 

Jefferson County (part) ......................................................................................................................................... ........................

That portion within Jefferson County described by connecting the following four sets of UTM coordinates 

moving in a clockwise manner: 

........................

(Herculaneum USGS Quadrangle), 718360.283, 4250477.056, 729301.869, 4250718.415, 729704.134, 

4236840.30, 718762.547, 4236558.715.

........................

(Festus USGS Quadrangle), 718762.547, 4236558.715, 729704.134, 4236840.30, 730066.171, 

4223042.637, 719124.585, 4222680.6.

........................

(Selma USGS Quadrangle), 729704.134, 4236840.30, 730428.209, 4236840.3, 741047.984, 4223283.996, 

730066.171, 4223042.637.

........................

(Valmeyer USGS Quadrangle), 729301.869, 4250718.415, 731474.096, 4250798.868, 730428.209, 

4236840.3, 729704.134, 4236840.30.

........................

* * * * * * * 

1 Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian 

country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is April 9, 2018, unless otherwise noted. 

* * * * * 

[FR Doc. 2022–01645 Filed 1–27–22; 8:45 am] 

BILLING CODE 6560–50–P 


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