### No. 223 / Wednesday, November 19, 1986 / Rules and Regulations

15 NCAC 2D.0505, Control ofParticulates

from Incinerators 15 NCAC2H.0603, (Permit) Applications

(ii) Other material-none. [FR Doc. 8&-26072 Filed 11-18-86; 8:45 am]

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40 CFR Part 62 [A-4-FRL-3113-9; NC-024] Approval and Promulgation of State Plans forDesignated Facilitiesand Pollutants, North Carolina; Minor Revisions to 111(d) Regulations AGENCY: Environmental Protection Agency. ACTION: 

### Finalrule.
SUMMARY: In this action, EPA is approving revisions to three North Carolina regulations which are part of the North Carolina 111(d) plans for sulfuric acid mist,total reduced sulfur, and fluorides from primary aluminum reduction plants.These revisions are minor and do not change the meaning of the current regulations. DATES: This action willbe effective January 20, 1987 unless notice is received within 30 days that adverse or critical comments willbe submitted. ADDRESSES: Copies ofthe documents relevant to this action are available for public inspection at the following locations and notice ofadverse or critical comments may be submitted to Janet Hayward at the EPARegional Office listed below: Environmental Protection Agency,

Region IV, Air Programs Branch, 345 Courtland Street NE., Atlanta, Georgia 30365 Air Quality Section, Division of

Environmental Management, North Carolina Department ofNatural Resources and Community Development, Archdale Building, 512 N. Salisbury Street, Raleigh, North Carolina, 27611.
FOR FURTHER INFORMATION CONTACT. Janet Hayward ofthe EPARegion IV, Air Programs Branch, at the above address and telephone (404) 347-3286 or FTS 257-3286.
SUPPLEMENTARY INFORMATION: On December 17, 1984, the North Carolina Division ofEnvironmental Management submitted numerous changes to the North Carolina Administrative Code to EPA for approval as part ofthe State Implementation Plan (SIP). These changes included several rule revisions which couldnot be processed as revisions tothe SIP under section 110 of the Clean Air Act (the Act), because they dealt with "designated pollutants" which are regulated under section 111(d) of the Act.These rules were: 2D.0517 (Emissionsfrom Plants Producing Sulfuric Acid), 2D.0528 (Total Reduced Sulfur from Kraft Pulp Mills) and 2D.0529 (Fluoride Emissions from Primary Aluminum Reduction Plants).

North Carolina resubmitted the above regulations onJuly 18, 1986, for approval

as minor changes to the State's 111(d) plans for those designated pollutants. There are no substantive differences in the effect of the North Carolina air pollution control regulations as a result ofthe changes. Terms have been changed to make them consistent with current usage and changes have been made in order to standardize nomenclature and to clarify the intent and applicability oftheregulations.

EPAis publishing this action without plior proposal because the Agency views this as a noncontroversial amendment and anticipates no adverse comments. This actionwill be effective 60 days from the date ofthis Federal Register unless,within 30 days ofits publication, notice is received that adverse orcritical comments willbe submitted.

Ifsuch notice is received, this action will be withdrawn before the effective date by publishing two subsequent notices. One notice will withdraw the final action and another will begin a
new rulemaking by announcing a proposal ofthe action and establishing a comment period. If no such comments

are received, the public is advised that this action will be effective January 20, 1987.
Final Action

After reviewing North Carolina's 111(d) plan revisions, EPA is approving these changes because they are routine wording changes and have no effect on the meaning ofthe regulations. Under 5 U.S.C. section 605(b), I certify that these revisions will not have a significant economic impact on a substantial number ofsmall entities. (See 46 FR 8709.)

The Office ofManagement and Budget has exempted thisrule from the requirements ofsection 3 ofExecutive Order 12291.

Under section 307(b)(1) ofthe Act, petitions forjudicial review ofthis action must be filed in the United States Court ofAppeals for the appropriate circuit by January 20, 1987. This action may not be challenged laterin proceedings to enforce its requirements (See 307(b)(2).). 

### List ofSubjects in 40CFR Part62 Air pollution control, Fluoride, Aluminum,Pulp and paper products industry, Sulfur oxides, Sulfuric acid plants.

Dated: November 7,1986. LeeM.Thomas, Administrator.


### PART 62-[AMENDED]

Part 62 ofChapter I,Title 40 of the Code ofFederal Regulations is amended

as follows:

1.The authority citation forPart 62 continues to read as follows:

Authority:42U.S.C. 7401-7642. Subpart Il-North Carolina

2. Section 62.8350 is amended by adding paragraph (b)(4) to read as follows:
§62.8350 Identification of Plan.

)** *** (b)

* 

### (4)The following revisions to Title 15 ofthe North Carolina Administrative Code (15 NCAC) were submitted to EPA

on July 18, 1986, following adoption by the North Carolina Environmental Management Commission on November 8, 1984: revised regulations 2D.0517- Emissions From Plants Producing Sulfuric Acid, 2D.0528-Total Reduced Sulfur From Kraft PulpMills, and 2D.0529-Fluoride Emissions From Primary Aluminum Reduction Plants.

[FRDoc. 86-26071 Filed 11-18-86; 8:45am]

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40 CFR Part 81

[A-9- FRL-3114-5] Designation ofAreas For AirQuality Planning Purposes; Las Vegas Valley, NV, Redesignation for Ozone
AGENCY: Environmental Protection Agency (EPA). ACTION: Final rule.
SUMMARY: This notice takes final action to approve the State ofNevada request for theredesignation of the Las Vegas Valley nonattainment area to attainment for ozone. EPA finds that the National Ambient Air Quality Standards (NAAQS) for ozone have not been violated, based on data available from 1983 to date measured in the area being redesignated. This action updates the attainment status for the area. Also, no additional Part D requirements need to be satisfied in the attainment area. 

### 41788 Federal Register / Vol. 51,

HeinOnline -- 51 Fed. Reg. 41788 1986

### Federal Register / Vol. 51, No. 223 / Wednesday, November 19,

DATES:

### This action will be effective January 20, 1987, unless notice is received within 30 days that adverse or critical comments will be submitted. ADDRESSES: The EPA Technical Support Document (June 1986) is available for public inspection during normal business hours at the EPARegion 9 address listed below and at the following locations: Nevada Department ofConservation

and Natural Resources, Division of Environmental Protection, 201 S. Fall Street, Carson City, NV 89710 Clark CountyHealth District,Air

Pollution Control Division,625 Shadow Lane, Las Vegas, NV 19106

FOR FURTHER INFORMATION CONTACT. Morris Goldberg (A-2-1), Technical Evaluation Section, Air Management Division, Environmental Protection Agency, Region 9, 215 Fremont Street, San Francisco CA 94105, Telephone: (415) 974-7651, (FTS) 454-7651.
SUPPLEMENTARY INFORMATION:. Background

On March 3, 1978 (43 FR 8962), under paragraph 107(d)(2) of the Clean Air Act,

as amended, EPA promulgated attainment status designations for all states. Ambient air quality data measured in Las Vegas Valley in 1977

was provided to EPA by the State along with a recommendation that the area be designated nonattainment for oxidant, in accord with paragraph 107(d)(1)(A) of the Act. EPA designated the Las Vegas Valley area nonattainment for oxidant.

On February 8, 1979 (44 FR 8220), the NAAQS were revised from 0.08 ppm oxidant, 1-hour average concentration, not to be exceeded more than onceper year, to 0.12ppm ozone, daily maximum 1-houraverage concentration, not expected to be exceeded more than an 1.0 times per year, averaged over the mostrecent three years forwhich data

are available. The attainment status designation table headings at 40 CFR Part 81 were revised accordingly.

On April 1, 1986, the State ofNevada requested that EPA redesignate the Las Vegas Valley area to attainment for

ozone. The request indicated that the implementation ofEPA-approved control measures had resulted in only

one exceedance ofthe NAAQS at each of two monitoring stations and less than 1.0 expected exceedances at each of three sites in the last three years.
Evaluation

EPA reviewed the ozone ambient air quality data from the three monitoring sites in the Las Vegas Valley and found itconsistent with the data in the 

### redesignation request. EPAfound one exceedance ofthe NAAQS at each of two ofthe three sites during the past three years. The exceedances were recorded on September 14, 1983, at the Casino Center site and on February 15, 1985, at the Henderson monitoring site. Based on the completeness ofthe data, EPAfound 0.4 and 0.3 expected exceedances ofthe NAAQS, averaged
over the most recent three years at the Las Vegas-Casino Center and Henderson-Powerline monitoring sites, respectively.Also no exceedances have beenmeasured to-date in 1986 at any Las Vegas Valley monitoring station.

The ozone implementation plan for theLas Vegas Valley was submitted by the State ofNevada onJanuary 11, 1985 and fully approved on August 21, 1986 (51FR 29923). The approved plan contains chlorine stationary source emission limitations and new source review rules. These regulations, adopted
on May 18, 1984, assure EPA that the 90%reduction in chlorine emissions obtained between 1979 and 1983 would continue. EPA also approved the plan's demonstration (ofattainment) ofthe effect ofthe chlorine emission control strategy on the ozone ambient air quality concentrations in the area. EPA's approval ofthe control strategy containing these measures indicates that the plan satisfactorily demonstrates that these measures, when implemented, have thepotential to provide the emission reduction necessary forthe attainment and maintenance of the designated national ambient airquality standard. Theplan also contains approved control measures for volatile organic compounds, asrequired by EPA, to ensure that ozone caused bythe more traditional precursors is controlled.

Thus, EPAconcludes, as did the State, that the implementation offederally enforceable control measures has resulted in air qualitybetter than that needed forredesignation ofthe area. Thus, EPA concurs with the redesignation ofthe area from nonattainment to attainment forozone. EPA Action

This notice takes final action to redesignate the Las Vegas Valley, Nevada, from nonattainment to attainment for ozone, as requested by the State. Direct Final

EPA's approval ofthe above redesignation in Nevada is being done without priorproposal because the redesigation is not considered to be controversial. The public shouldbe advised that this approval action willbe effective 60 days from the date this approval ispublished in theFederal Register. However,ifnotice is received byEPA within 30 days indicating that

someone wishes to submit adverse or cirtical comments, this approval action willbe withdrawn and a subsequent notice will be published before the effective date. The subsequent notice willindefinitely postpone the effective date, modify thefinal action to a proposed action, and establish a comment period. Regulatory Process

The Office ofManagement and Budget has exempted this action from the requirements ofsection 3ofExecutive Order 12291.

Under section 307(b)(1) ofthe Act, petitionsforjudicial review of this actionmust be filed in the United States Court ofAppeals for the appropriate circuit byJanuary 20, 1987.This action may notbe challenged later in processing to enforce its requirements (See 307(b)(2)).

Under 5U.S.C.605(b), I certifythat this action will not have a significant economic impact on a substantial number ofsmall business entities. [46 FR 8709].
List of Subjects in40 CFR Part81

Airpollution control,National parks, Wilderness areas.

Dated: October 17, 1986. 

### Lee M. Thomas, Administrator.


### PART 81-[AMENDED]

40CFR Part 81 is amended as follows: Subpart C-Section 107 Attainment Status Designations

1.The authority citation for Part 81 continues to read as follows:

Authority:42 U.S.C.7401-7642. 

### 2.In §81.329 the Nevada attainment
status designation tabie forozone (03) is 

### revised toread as follows:
§81.329 Nevada.

NEVADA-0 3

Cannot Does be not classit fied or Designated area meet betler pnmary than stand- national ards standards

Entire State

............................................................. X



### [FR Doc. 86-26073 Filed11-18-86; 8:45 am]
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### 1986 / Rules and Regulations 41789

HeinOnline -- 51 Fed. Reg. 41789 1986