[Federal Register Volume 82, Number 223 (Tuesday, November 21, 2017)]
[Proposed Rules]
[Pages 55339-55340]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-25169]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 60

[EPA-HQ-OAR-2016-0442; FRL-9971-03-OAR]
RIN 2060-AS92


National Emission Standards for Hazardous Air Pollutants From the 
Portland Cement Manufacturing Industry; Residual Risk and Technology 
Review

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule; notice of data availability.

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SUMMARY: The Environmental Protection Agency (EPA) is issuing this 
notice of data availability (NODA) in support of the proposed rule 
titled ``National Emission Standards for Hazardous Air Pollutants From 
the Portland Cement Manufacturing Industry; Residual Risk and 
Technology Review,'' which was published on September 21, 2017. In this 
document, the EPA is soliciting public comment on information added to 
the docket (EPA-HQ-OAR-2016-0442) on November 3, 2017.

DATES: Comments must be received on or before December 4, 2017.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-HQ-
OAR-2016-0442, at https://www.regulations.gov. Follow the online 
instructions for submitting comments. Once submitted, comments cannot 
be edited or removed from 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 https://www2.epa.gov/dockets/commenting-epa-dockets.

FOR FURTHER INFORMATION CONTACT: Mr. Brian Storey, Sector Policies and 
Programs Division (D243-04), Office of Air Quality Planning and 
Standards, U.S. Environmental Protection Agency, Research Triangle 
Park, North Carolina 27711; telephone number: (919) 541-1103; fax 
number: (919) 541-4991; and email address: [email protected].

SUPPLEMENTARY INFORMATION:
    Organization of This Document. The information presented in this 
document is organized as follows:

I. Background
II. Purpose of the NODA

I. Background

    On September 21, 2017, the EPA proposed amendments to the National 
Emission Standards for Hazardous Air Pollutants From the Portland 
Cement Manufacturing Industry to address the results of the residual 
risk and technology review (RTR) in accordance with section 112 of the 
Clean Air Act (CAA). The proposed rule indicated that the EPA found 
risks due to emissions of air toxics to be acceptable from this source 
category, and identified no cost-effective controls under the 
technology review to achieve further emissions reductions. In addition, 
the proposed rule included amendments to correct and clarify rule 
testing and monitoring provisions. In support of the proposed rule, the 
EPA posted over 160 documents to the docket to allow the public to 
provide comment on the rule and on documents used to develop the rule, 
in accordance with section 307(d) of the CAA. The subject matter of 
these docketed items included various correspondence with stakeholders, 
summary of meeting minutes, and technical memoranda related to the risk 
assessment and technology review process.

II. Purpose of the NODA

    On November 1, 2017, the EPA became aware that two memoranda 
prepared to support the September 21, 2017, proposed rule were 
inadvertently omitted from the docket. The subject of the two memoranda 
are ``Development of the RTR Risk Modeling Dataset for the Portland 
Cement Manufacturing Source Category,'' and ``Technology Review for the 
Portland Cement Production Source Category.''
    The purpose of the memorandum with the subject title of 
``Development of the RTR Risk Modeling Dataset for the Portland Cement 
Manufacturing Source Category'' is to document the technical approach 
and rationale used to develop the risk modeling input data used to 
perform the residual risk assessment, pursuant to section 112(f) of the 
CAA. It includes discussions of the methods used to develop a list of 
facilities subject to the source category; the development of actual, 
acute, and allowable emissions datasets; and discussions of how stack 
parameter data and stack locations were derived. The memorandum was 
actually included in the docket as Appendix 1 of the document, 
``Residual Risk Assessment for the Portland Cement Manufacturing Source 
Category in Support of the September 2017 Risk and Technology Review 
Proposed Rule.'' This document was posted to the docket prior to 
publication of the proposed rule as Docket Item No. EPA-HQ-OAR-2016-
0442-0153. However, we also intended to include this memorandum as a 
stand-alone document.
    The purpose of the memorandum with the subject title of 
``Technology Review for the Portland Cement Production Source 
Category'' is to provide a summary of the methods used to determine 
what, if any, new developments in practices, processes, and control 
technologies exist for the Portland Cement Manufacturing source 
category to support our proposed determination regarding whether 
revisions to the rule are warranted under section 112(d)(6) of the CAA. 
The information provided by this memorandum was summarized in the 
preamble of the September 21, 2017, proposed rule.
    The EPA recognizes the importance of these two documents, and 
posted both documents to the docket on November 3, 2017. The docket 
item numbers are EPA-HQ-OAR-2016-0442-0188 for ``Development of the RTR 
Risk Modeling Dataset for the Portland Cement Manufacturing Source 
Category'' and EPA-HQ-OAR-2016-0442-0189 for ``Technology Review for

[[Page 55340]]

the Portland Cement Production Source Category.''
    We are issuing this NODA to provide notice and ensure that parties 
have an opportunity to submit comments on these documents for a period 
of 30 days after their insertion in the docket. Although the public 
comment period for the proposed rule is scheduled to close on November 
21, 2017, the public will be allowed to submit their comments, as well 
as provide comments on the proposed conclusions the EPA reached when it 
relied on these documents to propose the RTR rulemaking, for a period 
of 30 days, as required by the CAA. The comment period for the two 
aforementioned documents added to the docket was opened on November 3, 
2017, and will close on December 4, 2017.

    Dated: November 14, 2017.
Stephen Page,
Director, Office of Air Quality Planning and Standards.
[FR Doc. 2017-25169 Filed 11-20-17; 8:45 am]
BILLING CODE 6560-50-P


