Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; State of Louisiana; Correction of Classification; Approval of the Maintenance Plan; Redesignation of Pointe Coupee Parish to Attainment for Ozone

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 52 and 81

[LA-34-1-7300a, FRL-5531-4]

Approval and Promulgation of Implementation Plans and Designation

of Areas for Air Quality Planning Purposes; State of Louisiana;

Correction of Classification; Approval of the Maintenance Plan;

Redesignation of Pointe Coupee Parish to Attainment for Ozone

AGENCY: Environmental Protection Agency (EPA).

ACTION: Direct final rule.

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

SUMMARY: This document announces the Administrator's decision to remove

Pointe Coupee Parish (Pointe Coupee), Louisiana, from the Baton Rouge

serious ozone nonattainment area, to reclassify Pointe Coupee from

serious to marginal, and to redesignate Pointe Coupee to attainment for

ozone. Pointe Coupee

[[Page 37834]]

was classified as a serious ozone nonattainment area by the EPA on

November 6, 1991 (56 FR 56694). However, the EPA has determined that

the strategy used in including Pointe Coupee as part of the Baton Rouge

serious ozone nonattainment area was incorrect. Pursuant to section

110(k)(6) of the Clean Air Act as amended in 1990 (the Act), which

allows the EPA to correct its actions, the EPA is today granting the

State's request to correct the classification of Pointe Coupee.

In addition to approving this correction of Pointe Coupee's

classification, the EPA is today approving a request from the State of

Louisiana to redesignate Pointe Coupee to attainment for ozone. On

December 20, 1995, the State of Louisiana submitted a maintenance plan

and request to redesignate the Pointe Coupee Parish ozone nonattainment

area to attainment. Under the Act, nonattainment areas may be

redesignated to attainment if sufficient data are available to warrant

the redesignation and the area meets the other redesignation

requirements. In this action, the EPA is approving Louisiana's

redesignation request and maintenance plan because it meets the

maintenance plan and redesignation requirements set forth in the Act,

and the EPA is approving the 1993 base year emissions inventory. The

approved maintenance plan will become a federally enforceable part of

the State Implementation Plan (SIP) for Louisiana.

DATES: This action is effective on September 20, 1996, unless notice is

postmarked by August 21, 1996 that someone wishes to submit adverse or

critical comments. If the effective date is delayed, timely notice will

be published in the Federal Register (FR).

ADDRESSES: Comments should be mailed to Thomas H. Diggs, Chief, Air

Planning Section (6PD-L), EPA Region 6, 1445 Ross Avenue, Dallas, Texas

75202-2733. Copies of the State's petition and other information

relevant to this action are available for inspection during normal

hours at the following locations:

Environmental Protection Agency, Region 6, Air Planning Section (6PD-

L), 1445 Ross Avenue, Suite 700, Dallas, Texas 75202-2733

Air and Radiation Docket and Information Center, Environmental

Protection Agency, 401 M Street, S.W., Washington, D.C. 20460

Louisiana Department of Environmental Quality, Office of Air Quality,

7290 Bluebonnet Boulevard, Baton Rouge, Louisiana 70810

Anyone wishing to review this petition at the EPA office is asked

to contact the person below to schedule an appointment 24 hours in

advance.

FOR FURTHER INFORMATION CONTACT: Lt. Mick Cote, Air Planning Section

(6PD-L), U.S. Environmental Protection Agency, Region 6, 1445 Ross

Avenue, Dallas, Texas 75202-2733, telephone (214) 665-7219.

SUPPLEMENTARY INFORMATION:

Background

Prior to the 1990 amendments to the Act, the EPA identified and

designated nonattainment areas with respect to the National Ambient Air

Quality Standards (NAAQS). For such areas, States submitted SIPs to

control emissions and achieve attainment of the NAAQS. Pointe Coupee

was originally designated as nonattainment for ozone on March 3, 1978.

The SIP for Pointe Coupee was first adopted in the early 1980's.

Pointe Coupee Parish was a rural ozone nonattainment planning area

prior to 1990. The parish is contiguous to the Baton Rouge Consolidated

Metropolitan Statistical Area (CMSA). The ozone design value for Pointe

Coupee for the years 1988 through 1990 was 0.127 parts per million,

which would have classified the parish as a marginal ozone

nonattainment area under the Act.

Following the 1990 amendments to the Act, the Louisiana Department

of Environmental Quality (LDEQ), in conjunction with other State

planning agencies, developed the boundaries for the Baton Rouge ozone

nonattainment area. Pointe Coupee was contiguous to the Baton Rouge

CMSA, and had two large nitrogen oxides (NOX) sources, Big Cajun I

and II power plants. It was concluded that the presence of these two

large NOX sources would contribute significantly to the ozone

levels in the Baton Rouge CMSA. Pointe Coupee was subsequently

classified as serious by operation of law and included as part of the

Baton Rouge serious ozone nonattainment area pursuant to sections

107(d) and 181(a) of the Act. Further citations will refer to the Act

unless otherwise specified. See 56 FR 56694 (November 6, 1991).

The Clean Air Act, as amended in 1977, required areas that were

designated nonattainment based on a failure to meet the ozone NAAQS to

develop SIPs with sufficient control measures to expeditiously attain

and maintain the standard. Pointe Coupee was designated under section

107 of the 1977 Clean Air Act as nonattainment with respect to the

ozone NAAQS on March 3, 1978 (40 CFR 81.319). The most recent revision

to the ozone SIP occurred on May 5, 1994, when the EPA approved a SIP

revision for the State of Louisiana to correct certain enforceability

deficiencies in its volatile organic compounds (VOC) rules (59 FR

23164). For purposes of redesignations, the State of Louisiana has an

approved ozone SIP for Pointe Coupee.

The LDEQ has collected ambient monitoring data since 1991 that show

no violations of the ozone NAAQS of 0.12 parts per million. The LDEQ

has developed a maintenance plan for Point Coupee, and solicited public

comment. Subsequently, the LDEQ submitted a request, through the

Governor's office, to redesignate this parish to attainment with

respect to the ozone NAAQS. This maintenance plan and redesignation

request for Pointe Coupee was submitted to the EPA on December 20,

1995.

Correction of Error Under Section 110(k)(6)

Section 110(k)(6) provides whenever the Administrator determines

that the Administrator's action approving, disapproving, or

promulgating any plan or plan revision (or part thereof), area

designation, redesignation, classification, or reclassification was in

error, the Administrator may in the same manner as the approval,

disapproval, or promulgation revise such action as appropriate without

requiring any further submission from the State. Such determination and

the basis thereof shall be provided to the State and public. The EPA

interprets this provision to authorize the Agency to make corrections

to a promulgation when it is shown to the EPA's satisfaction that an

error occurred in failing to consider or inappropriately considering

information available to the EPA at the time of the promulgation, or

the information made available at the time of promulgation is

subsequently demonstrated to have been clearly inadequate.

Ground level ozone formation involves a photochemical reaction

between certain precursor chemicals when specific meteorological

conditions are present. Reactions between VOCs, NOX, and to a much

lesser degree, carbon monoxide (CO), form ground level ozone. The EPA's

initial action in classifying Pointe Coupee was based on the belief

that NOX emissions from Pointe Coupee would significantly impact

ozone levels in the Baton Rouge CMSA, and including the parish in the

Baton Rouge nonattainment area would assist in controlling future ozone

levels. That information was subsequently demonstrated to have been

[[Page 37835]]

inappropriately considered. The EPA has since determined, through a

recent Urban Airshed Modeling (UAM) demonstration, that NOX

reductions are not beneficial to attainment in the Baton Rouge CMSA,

and therefore contradicts the LDEQ's and the EPA's original reason for

the inclusion of Pointe Coupee in the Baton Rouge planning area.

In addition, Pointe Coupee's design value in the 1988-1990

timeframe was 0.127 ppm, which would have lead the EPA to classify the

area ``marginal''. Pointe Coupee is not part of the Baton Rouge CMSA,

and it is a rural parish. For these reasons, the EPA has determined

that the basis for including Pointe Coupee as part of the Baton Rouge

serious ozone nonattainment area was incorrect. Therefore, the EPA

believes it is appropriate to correct the EPA's initial decision by

removing Pointe Coupee Parish from the Baton Rouge serious ozone

nonattainment area and subsequently change the classification of Pointe

Coupee Parish from serious to marginal. Please see the technical

support document (TSD) in the official docket for the detailed UAM

analysis.

Redesignation to Attainment

Evaluation Criteria

The 1990 Amendments revised section 107(d)(3)(E) to provide five

specific requirements that an area must meet in order to be

redesignated from nonattainment to attainment: (1) The area must have

attained the applicable NAAQS; (2) the area must meet all applicable

requirements under section 110 and part D; (3) the area must have a

fully approved SIP under section 110(k); (4) the air quality

improvement must be permanent and enforceable; and, (5) the area must

have a fully approved maintenance plan pursuant to section 175A.

Section 107(d)(3)(D) allows a Governor to initiate the redesignation

process for an area to apply for attainment status. Please see the TSD

for a detailed discussion of these requirements.

(1) Attainment of the NAAQS for Ozone

Attainment of the ozone NAAQS is determined based on the expected

number of exceedances in a calendar year. The method for determining

attainment of the ozone NAAQS is contained in 40 CFR 50.9 and appendix

H to that section. The simplest method by which expected exceedances

are calculated is by averaging actual exceedances at each monitoring

site over a consecutive three year period. An area is in attainment of

the standard if this average results in expected exceedances for each

monitoring site of 1.0, or less, per calendar year. When a valid daily

maximum hourly average value is not available for each required

monitoring day during the year, the missing days must be accounted for

when estimating exceedances for the year. Appendix H provides the

formula used to estimate the expected number of exceedances for each

year.

The State of Louisiana's request is based on an analysis of

quality-assured ozone air quality data which is relevant to both the

maintenance plan and to the redesignation request. The data come from

the State and Local Air Monitoring Station network. This request is

based on ambient air ozone monitoring data collected for more than

three consecutive years in the area. The New Roads monitoring site in

Pointe Coupee has collected ozone periodically since 1976, and

continuously since 1988. The data collected since 1991 clearly show an

expected exceedance rate of less than 1. The redesignation request and

maintenance plan are based on ambient air quality data collected

between 1991 and 1995. Please see the TSD for the detailed air quality

monitoring data.

In addition to the demonstration discussed above, the EPA required

completion of air network monitoring requirements set forth in 40 CFR

part 58. This included a quality assurance plan revision and a

monitoring network review to determine the adequacy of the ozone

monitoring network. The LDEQ fulfilled these requirements to complete

documentation for the air quality demonstration. The LDEQ has also

committed to continue monitoring in Pointe Coupee in accordance with 40

CFR part 58.

In summary, the EPA believes that the data submitted by the LDEQ

provides an adequate demonstration that Pointe Coupee attained the

ozone NAAQS. Moreover, the monitoring data continue to show attainment

to date.

(2) Section 110 Requirements and Part D Requirements

For purposes of redesignation, to meet the requirement that the SIP

contain all applicable requirements under the Act, the EPA has reviewed

the SIP to ensure that it contains all measures that were due under the

Act prior to or at the time the State submitted its redesignation

request, as set forth in policy. The EPA interprets section

107(d)(3)(E)(v) to mean that, for a redesignation request to be

approved, the State must have met all requirements that applied to the

subject area prior to or at the same time as the submission of a

complete redesignation request. In this case, the date of submission of

a complete redesignation request is December 20, 1995.

Requirements of the Act that come due subsequently continue to be

applicable to the area at later dates (see section 175A(c)) and, if

redesignation of any of the areas is disapproved, the State remains

obligated to fulfill those requirements. These requirements are

discussed in the following the EPA documents: ``Procedures for

Processing Requests to Redesignate Areas to Attainment,'' John

Calcagni, Director, Air Quality Management Division, September 4, 1992;

``State Implementation Plan (SIP) Actions Submitted in Response to

Clean Air Act (the Act) Deadlines,'' John Calcagni, Director, Air

Quality Management Division, October 28, 1992; and ``State

Implementation Plan (SIP) Requirements for Areas Submitting Requests

for Redesignation to Attainment of the Ozone and Carbon Monoxide (CO)

National Ambient Air Quality Standards (NAAQS) on or after November 15,

1992,'' Michael H. Shapiro, Acting Assistant Administrator, September

17, 1993.

The EPA has analyzed the Louisiana SIP and determined that it is

consistent with the requirements of amended section 110(a)(2). The SIP

contains enforceable emission limitations; requires monitoring,

compiling, and analyzing ambient air quality data; requires

preconstruction review of new major stationary sources and major

modifications to existing ones; provides for adequate funding, staff,

and associated resources necessary to implement its requirements; and

requires stationary source emissions monitoring and reporting. For

purposes of redesignation, the Pointe Coupee SIP was reviewed to ensure

that all requirements of section 110(a)(2), containing general SIP

elements, were satisfied. As noted above, the EPA believes all marginal

ozone nonattainment area requirements have been met for Pointe Coupee.

Part D Requirements. Before Pointe Coupee can be redesignated to

attainment, it must have fulfilled the applicable requirements of part

D. Under part D, an area's classification determines the requirements

to which it is subject. Subpart 1 of part D sets forth the basic

nonattainment requirements applicable to all nonattainment areas.

Subpart 2 of part D establishes additional requirements for

nonattainment areas classified under Table 1 of section 181(a). As

described in the General Preamble for the Implementation of Title 1,

specific requirements of subpart 2 may override subpart 1's general

provisions (57 FR

[[Page 37836]]

13501 (April 16, 1992)). With this action, Pointe Coupee is now subject

to the marginal requirements of section 182(a) rather than section

182(c). Therefore, in order to be redesignated, the State must meet the

applicable requirements of subpart 1 of part D-specifically sections

172(c) and 176, as well as the applicable requirements of subpart 2 of

part D.

Subpart 1 of Part D--Section 172(c) Requirements. Under section

172(b), the Administrator established that States containing

nonattainment areas shall submit a plan or plan revision meeting the

applicable requirements of section 172(c) no later than three years

after an area is designated as nonattainment, unless the EPA

establishes an earlier date.

Section 172(c) sets forth general requirements applicable to all

nonattainment areas. Under section 172(b), the section 172(c)

requirements are applicable as determined by the Administrator, but no

later than three years after an area has been designated as

nonattainment under the Act. Furthermore, as noted above, some of these

section 172(c) requirements are superseded by more specific

requirements in subpart 2 of part D. Those sections which have been

superseded can be found in the subpart 2 discussion. In the case of

Pointe Coupee, the State has satisfied all of the section 172(c)

requirements.

As discussed under the section 110(k)(6) requirements above, Pointe

Coupee has been part of a larger serious ozone nonattainment area.

Serious ozone nonattainment areas have an attainment date of November

15, 1999. However, since this action classifies Pointe Coupee as

marginal, the area now has an attainment date of November 15, 1993.

Based on the monitoring data collected between 1991 and 1995, the EPA

agrees with the State that Pointe Coupee attained the ozone standard by

this earlier date.

The section 172(c)(1) non-Reasonably Available Control Technology

(RACT) control requirements have been met through satisfaction of the

section 182(a)(2)(A) requirements. The EPA has determined that the

section 172(c)(2) reasonable further progress requirement does not

apply for this redesignation request, since air quality data shows that

Pointe Coupee has already attained the ozone standard. The section

172(c)(3) emissions inventory requirements will be satisfied by the

approval of the 1993 attainment year inventory requirements of the

maintenance plan under section 175A. The section 172(c)(4) requirement

to identify and quantify emission increases is intended to be an

alternative to the offsets requirement of section 173(a), and is not a

prerequisite to redesignation. Moreover, once the area is redesignated

to attainment, these provisions will not apply since the Prevention of

Significant Deterioration requirements of part C will become effective.

As for the section 172(c)(5) New Source Review (NSR) requirement,

the EPA has determined that areas being redesignated need not comply

with the NSR requirement prior to redesignation provided that the area

demonstrates maintenance of the standard without part D NSR in effect.

See, memorandum from Mary Nichols, Assistant Administrator for Air and

Radiation, dated October 14, 1994, entitled Part D New Source Review

(part D NSR) Requirements for Areas Requesting Redesignation to

Attainment. The rationale for this view is described fully in that

memorandum, and is based on the EPA's authority to establish de minimis

exceptions to statutory requirements. See, Alabama Power Co. v. Costle,

636 F. 2d 323, 360-61 (D.C. Cir. 1979).

Section 172(c)(6) requires that other control measures be included

as necessary to provide for attainment and maintenance of the ozone

standard. Since attainment has been reached in Pointe Coupee, no

additional measures are needed for attainment. Any additional measures

required to ensure maintenance of the ozone standard are included in

the contingency plan submitted with the redesignation request. Section

172(c)(7) requires that the nonattainment plan meet the applicable

provision of section 110(a)(2). As discussed above under the section

110(a)(2) requirements, the SIP contains such measures and has met the

requirements of section 110(a)(2). Section 172(c)(8) allows the State

to use equivalent techniques for modeling, inventorying, or other

planning activities unless the EPA determines that the techniques are

less effective. This allowance will continue to apply to the

requirements of the maintenance plan. The section 172(c)(9)

requirements for contingency measures are directed at ensuring

reasonable further progress and attainment by the attainment date.

These requirements do not apply to Pointe Coupee, since the area has

attained the ozone standard. Furthermore, section 175A for maintenance

plans provides specific requirements for contingency measures that

effectively supersede the requirements of this section.

Section 176(c) requires States to revise their SIPs to establish

criteria and procedures to ensure that Federal actions, before they are

taken, conform to the air quality planning goals in the applicable

State SIP. The EPA believes it is reasonable to interpret the

conformity requirements as not being applicable requirements for

purposes of evaluating this redesignation request under section 107(d).

The rationale for this is based on a combination of two factors.

First, the requirement to submit SIP revisions to comply with the

conformity provisions of the Act continues to apply to areas after

redesignation to attainment. Second, the EPA's federal conformity rules

require the performance of conformity analyses in the absence of state-

adopted rules. For a complete description of the EPA's national policy

for the applicability of conformity requirements to redesignation

requests, please see the December 7, 1995 Federal Register at 60 FR

62748.

Finally, for purposes of redesignation, the Pointe Coupee SIP was

reviewed to ensure that all requirements of section 110(a)(2),

containing general SIP elements, were satisfied. As noted above, the

EPA believes the SIP satisfies all of those requirements.

Subpart 2 of Part D--Section 182(a) Requirements. The Act was

amended on November 15, 1990, Public Law 101- 549, 104 Stat. 2399,

codified at 42 U.S.C. 7401-7671q. The EPA was required to classify

ozone nonattainment areas according to the severity of their problem.

As discussed previously, Pointe Coupee was designated as a serious

ozone nonattainment. See 40 CFR 81.319. Because of this classification,

Pointe Coupee originally had to meet the more stringent section 182(c)

requirements. The EPA has analyzed the SIP and determined that it is

consistent with the requirements of amended section 182. Below is a

summary of how the area has met the requirements of section 182(a) for

marginal areas.

Emissions Inventory. Section 182(a)(1) required an inventory of

actual emissions from all sources, as described in section 172(c)(3) by

November 15, 1992. On November 16, 1992, the LDEQ submitted an emission

inventory for Pointe Coupee as part of the Baton Rouge 1990 base year

submission. The EPA approved this 1990 base year inventory on March 15,

1995.

Reasonably Available Control Technology. To be redesignated, all

SIP revisions required by section 182(a)(2)(A) concerning RACT

requirements must have been submitted to the EPA and fully approved (59

FR

[[Page 37837]]

23166). Louisiana has met all RACT corrections requirements.

Vehicle Inspection and Maintenance (I/M). Section 182(a)(2)(B)

requires that States correct deficiencies in any existing I/M program.

There is not, however, any requirement under this section to implement

a new I/M program. Pointe Coupee did not have an I/M program in place

prior to 1990, so no outstanding I/M issues exist. It should be noted

that an I/M program has been adopted by the State in this parish, but

the EPA has not taken action to approve it.

Emissions Inventory Update and Statements. Section 182(a)(3)(A)

required a periodic update of the area's emission inventory under

paragraph (1) within three years of its submittal. The State included a

1993 inventory with the December 20, 1995 submittal of its maintenance

plan and redesignation request for Pointe Coupee. Section 182(a)(3)(B)

required a SIP submission by November 15, 1992, to require stationary

sources of NOX and VOCs to provide statements of actual emissions.

Louisiana submitted an annual emissions statement SIP revision on March

3, 1993. This revision was approved in the Federal Register on January

6, 1995 at 60 FR 2014.

General Offset Requirement. Section 182(a)(4) required the State to

develop VOC emission offset requirements in the ratio of 1.1 to 1. As

discussed previously under the section 172(c)(5) NSR requirements, the

EPA has determined that areas being redesignated need not comply with

the NSR requirement prior to redesignation. Section 172(c)(5)(c) of the

NSR requirements specifies the requirements for offsets.

(3) Fully Approved SIP Under Section 110(k)

Based on the approval of provisions under the pre-amended Act and

the EPA's prior approval of SIP revisions under the 1990 Amendments,

the EPA has determined that Pointe Coupee has a fully approved SIP

under section 110(k), which also meets the applicable requirements of

section 110 and part D as discussed above.

(4) Improvement in Air Quality Due to Permanent and Enforceable

Measures

The EPA approved the Louisiana SIP control strategy for Pointe

Coupee, satisfied that the rules and the emission reductions achieved

as a result of those rules were enforceable. The control measures to

which the emission reductions are attributed are VOC RACT regulations,

the Federal Motor Vehicle Control Program (FMVCP), and lower Reid Vapor

Pressure (RVP) for gasoline. The FMVCP and RVP reduced VOC emissions

from motor vehicles by 47 percent from 1990 to 1996. In addition, the

State permits program, the Prevention of Significant Deterioration

permits program, and the Federal Operating Permits program will help

counteract future emissions growth.

In association with its emission inventory discussed below, the

State of Louisiana has demonstrated that actual enforceable emission

reductions are responsible for the air quality improvement and that the

VOC emissions in the base year are not artificially low due to local

economic downturn. The EPA finds that the combination of existing the

EPA-approved state and federal measures contribute to the permanence

and enforceability of reduction in ambient ozone levels that have

allowed the area to attain the NAAQS.

(5) Fully Approved Maintenance Plan Under Section 175A

Section 175A sets forth the elements of a maintenance plan for

areas seeking redesignation from nonattainment to attainment. The plan

must demonstrate continued attainment of the applicable NAAQS for at

least ten years after the Administrator approves a redesignation to

attainment. Eight years after the redesignation, the State must submit

a revised maintenance plan which demonstrates attainment for the ten

years following the initial ten-year period. To provide for the

possibility of future NAAQS violations, the maintenance plan must

contain contingency measures, with a schedule for implementation,

adequate to assure prompt correction of any air quality problems. In

this document, the EPA is approving the State of Louisiana's

maintenance plan for Pointe Coupee because the EPA finds that

Louisiana's submittal meets the requirements of section 175A.

A. Emissions Inventory-Attainment Year Inventory

On December 20, 1995, the State of Louisiana submitted

comprehensive inventories of VOCs, NOX, and CO emissions from

Pointe Coupee. The inventories include area, stationary, and mobile

sources using 1993 as the base year for calculations to demonstrate

maintenance. The 1993 inventory is considered representative of

attainment conditions because the NAAQS was not violated during 1993

and was one of the three years (1991-1993) upon which the attainment

demonstration was based. The EPA is approving the 1993 base year

inventory in this document.

The State submittal contains the detailed inventory data and

summaries by county and source category. The UAM Emission Processing

System 2.0 Utility Program Bureau of Economic Analysis Factors was used

to generate the growth projections for the emissions inventory. These

factors were applied to the 1993 inventory to reflect the expected

emission levels through 2006.

The emission projections show an increase above the base year

levels for NOX. Because of this increase, the LDEQ was required to

provide justification that Pointe Coupee could maintain its air quality

in light of this projected NOX increase. The LDEQ submitted a UAM

demonstration with the redesignation request. The UAM demonstration was

used to demonstrate the impact of NOX emission increases on ozone

formation. The UAM analysis showed that the projected future mix of

emissions will not cause a violation of the NAAQS. The EPA UAM guidance

documents were used in developing model inputs.

The model was run using 1992 and 1993 meteorological conditions and

monitored ozone concentration data. This UAM demonstration illustrates

that the projected NOX levels during the maintenance period (1993-

2006) will not adversely affect ozone levels in Pointe Coupee. Please

see the TSD for details regarding the emission inventory and

projections, as well as a copy of the UAM modeling results.

The following table is a summary of the revised average peak ozone

season weekday VOC and NOX emissions for the major anthropogenic

source categories for the 1993 attainment year inventory.

Summary of VOC Emission Projections for Pointe Coupee Parish in Tons Per

Day

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

1993 1999 2006

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

Point Source VOC................................ 2.50 2.52 2.50

Area Source VOC................................. 0.94 0.98 0.88

Nonroad Source VOC.............................. 1.55 1.70 1.51

Onroad Source VOC............................... 1.63 1.21 1.18

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

Total VOC................................... 6.62 6.41 6.07

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

Summary of NOX Emission Projections for Pointe Coupee Parish in Tons Per

Day

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

1993 1999 2006

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

Point Source NOX................................ 60.91 64.76 67.19

Area Source NOX................................. 0.03 0.03 0.03

Nonroad Source NOX.............................. 3.40 4.01 3.33

Onroad Source NOX............................... 2.56 2.19 2.12

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

[[Page 37838]]

Total NOX................................... 66.40 70.99 72.67

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

B. Continued Attainment

Continued attainment of the ozone NAAQS in Pointe Coupee will

depend, in part, on the Federal and State control measures discussed

previously. However, the ambient air monitoring site will remain active

at its present location during the maintenance period. These data will

be quality assured and submitted to the Aerometric Information and

Retrieval System on a monthly basis. A monitored violation of the ozone

NAAQS will provide the basis for triggering measures contained in the

contingency plans. Additionally, as discussed above, during year eight

of the maintenance period, the LDEQ is required to submit a revised

plan to provide for maintenance of the ozone standard in Pointe Coupee

for the next ten years.

C. Contingency Plan

Section 175A requires that a maintenance plan include contingency

provisions, as necessary, to promptly correct any violation of the

NAAQS that occurs after redesignation of the area to attainment. The

contingency plan should clearly identify the measures to be adopted, a

schedule and procedure for adoption and implementation, and a specific

time limit for action by the State. The State should also identify

specific triggers which will be used to determine when the measures

need to be implemented.

The LDEQ has selected new Control Techniques Guidelines or

Alternative Control Technology rule implementation and NOX RACT as

contingency measures in Pointe Coupee. If at any time during the

maintenance period Pointe Coupee records a violation of the ozone

NAAQS, the LDEQ will evaluate the potential source(s) of that violation

and promulgate either VOC or NOX RACT rules as appropriate for the

affected source categories. The LDEQ will adopt rules within 9 months

of the violation, and affected sources must be in compliance with the

these rules within 2 years of the violation. These contingency measures

and schedules for implementation satisfy the requirements of section

175A(d).

D. Subsequent Maintenance Plan Revisions

In accordance with section 175A(b), the State has agreed to submit

a revised maintenance SIP eight years after the area is redesignated to

attainment. Such revised SIP will provide for maintenance for an

additional ten years.

Final Action

In today's action, the EPA is correcting the error made by removing

Pointe Coupee from the Baton Rouge serious ozone nonattainment area,

establishing Pointe Coupee Parish as a separate planning area in

accordance with section 110(k)(6). In addition, the EPA is correcting

the classification of the area from serious to marginal for ozone. In

accordance with sections 107(d)(2)(B), and 110(k)(6), the correction

action portion of this document is a final publication of the

classification of Pointe Coupee Parish to a marginal ozone

nonattainment area, and is not subject to the notice and comment

provisions of sections 553 through 557 of title 5 of the Administrative

Procedures Act.

The EPA has evaluated the State's redesignation request for Pointe

Coupee for consistency with the Act, the EPA regulations, and policy.

The EPA believes that the redesignation request and monitoring data

demonstrate that this area has attained the ozone standard. In

addition, the EPA has determined that the redesignation request meets

the requirements and policy set forth in the General Preamble and

policy memorandum discussed in this document for area redesignations,

and today is approving Louisiana's redesignation request for Pointe

Coupee Parish.

The EPA is publishing this action without prior proposal because

the EPA views this as a noncontroversial amendment and anticipates no

adverse comments. However, in a separate document in this Federal

Register publication, the EPA is proposing to approve the SIP revision

should adverse or critical comments be filed. This action will be

effective September 20, 1996, unless adverse or critical comments

concerning the redesignation portion of this document are postmarked by

August 21, 1996. If the EPA receives such comments, this action will be

withdrawn before the effective date by publishing a subsequent document

that will withdraw the final action. All public comments received

concerning the redesignation portion of this document will then be

addressed in a subsequent final rule based on this action serving as a

proposed rule. The EPA will not institute a second comment period on

this action. Any parties interested in commenting on this action should

do so at this time. If no such comments are received on this action,

the public is advised that this action will be effective September 20,

1996.

The EPA has reviewed this redesignation request for conformance

with the provisions of the Act and has determined that this action

conforms to those requirements.

Regulatory Process

Under the Regulatory Flexibility Act, 5 U.S.C. 600 et seq., the EPA

must prepare a regulatory flexibility analysis assessing the impact of

any proposed or final rule on small entities (5 U.S.C. 603 and 604).

Alternatively, under 5 U.S.C. 605(b), the EPA may certify that the rule

will not have a significant impact on a substantial number of small

entities. See 46 FR 8709. Small entities include small businesses,

small not-for-profit enterprises, and governmental entities with

jurisdiction over populations of less than 50,000.

SIP approvals under section 110 and subchapter I, part D do not

create any new requirements, but simply approve requirements that the

State is already imposing. Therefore, because the Federal SIP-approval

does not impose any new requirements, I certify that it does not have a

significant impact on small entities. Moreover, due to the nature of

the Federal-State relationship under the Act, preparation of a

regulatory flexibility analysis would constitute Federal inquiry into

the economic reasonableness of State action. The Act forbids the EPA

from basing its actions concerning SIPs on such grounds. Union Electric

Co. v. U.S. E.P.A., 427 U.S. 246, 256-66 (S.Ct. 1976); 42 U.S.C.

section 7410(a)(2). The Office of Management and Budget has exempted

this action from review under Executive Order 12866.

Under section 307(b)(1), petitions for judicial review of this

action must be filed in the United States Court of Appeals for the

appropriate circuit by September 20, 1996. Filing a petition for

reconsideration of this final rule by the Administrator does not affect

the finality of this rule for purposes of judicial review; nor does it

extend the time within which a petition for judicial review may be

filed, or postpone the effectiveness of this rule. This action may not

be challenged later in proceedings to enforce its requirements (see

section 307(b)(2)).

Nothing in this action shall be construed as permitting, allowing,

or establishing a precedent for any future

[[Page 37839]]

request for a revision to any SIP. Each request for revision to the SIP

shall be considered separately in light of specific technical,

economic, and environmental factors and in relation to relevant

statutory and regulatory requirements.

Unfunded Mandates

Under sections 202, 203, and 205 of the Unfunded Mandates Reform

Act of 1995, signed into law on March 22, 1995, the EPA must undertake

various actions in association with proposed or final rules that

include a Federal mandate that may result in estimated costs of $100

million or more to the private sector, or to State, local, or tribal

governments in the aggregate.

Through submission of this SIP or plan revision approved in this

action, the State and any affected local or tribal governments have

elected to adopt the program provided for under section 175A. The rules

and commitments approved in this action may bind State, local and

tribal governments to perform certain actions and also require the

private sector to perform certain duties. To the extent that the rules

and commitments being approved by this action will impose or lead to

the imposition of any mandate upon the State, local, or tribal

governments, either as the owner or operator of a source or as a

regulator, or would impose or lead to the imposition of any mandate

upon the private sector, the EPA's action will impose no new

requirements; such sources are already subject to these requirements

under State law. Accordingly, no additional costs to State, local, or

tribal governments, or to the private sector, result from this action.

Therefore, the EPA has determined that this final action does not

include a mandate that may result in estimated costs of $100 million or

more to State, local, or tribal governments in the aggregate or to the

private sector.

SIP Actions Exempt From OMB Review

This action has been classified for signature by the Administrator

under the procedures published in the Federal Register on January 19,

1989 (54 FR 2214-2225), as revised by a July 10, 1995, memorandum from

Mary Nichols, Assistant Administrator for Air and Radiation. The Office

of Management and Budget has exempted this regulatory action from

Executive Order 12866 review.

Submission to Congress and the General Accounting Office

Under section 801(a)(1)(A) of the Administrative Procedure Act

(APA) as amended by the Small Business Regulatory Enforcement Fairness

Act of 1996, EPA submitted a report containing this rule and other

required information to the U.S. Senate, the U.S. House of

Representatives and the Comptroller General of the General Accounting

Office prior to publication of the rule in today's Federal Register.

This rule is not a ``major rule'' as defined by section 804(2) of the

APA as amended.

List of Subjects

40 CFR Part 52

Environmental protection, Air pollution control, Incorporation by

reference, Intergovernmental regulations, Ozone, Reporting and

recordkeeping requirements, Volatile organic compounds.

40 CFR Part 81

Air pollution control, National Parks, Wilderness areas.

Dated: June 27, 1996.

Carol M. Browner,

Administrator.

40 CFR Parts 52 and 81 are amended as follows:

PART 52--[AMENDED]

1. The authority citation for part 52 continues to read as follows:

Authority: 42 U.S.C. 7401-7671q.

Subpart T--Louisiana

2. Section 52.970 is amended by adding paragraph (c)(70) to read as

follows:

Sec. 52.970 Identification of plan.

* * * * *

(c) * * *

(70) The Louisiana Department of Environmental Quality submitted a

redesignation request and maintenance plan for Pointe Coupee Parish on

December 20, 1995. The redesignation request and maintenance plan meet

the redesignation requirements in section 107(d)(3)(E) of the Act as

amended in 1990. The redesignation meets the Federal requirements of

section 182(a)(1) of the Clean Air Act as a revision to the Louisiana

ozone State Implementation Plan for Pointe Coupee Parish. The EPA

therefore approved the request for redesignation to attainment with

respect to ozone for Pointe Coupee Parish on September 20, 1996.

(i) Incorporation by reference.

(A) Letter dated August 31, 1995, from Mr. Gustave Von Bodungen,

P.E., Assistant Secretary, Louisiana Department of Environmental

Quality, transmitting a copy of the Pointe Coupee Parish maintenance

plan for the EPA's approval.

(ii) Additional material.

(A) Letter dated August 28, 1995, from Governor Edwin E. Edwards of

Louisiana to Ms. Jane Saginaw, Regional Administrator, requesting the

reclassification and redesignation of Pointe Coupee Parish to

attainment for ozone.

(B) The ten year ozone maintenance plan, including emissions

projections and contingency measures, submitted to the EPA as part of

the Pointe Coupee Parish redesignation request on December 20, 1995.

3. Section 52.975 is amended by adding paragraph (d) to read as

follows:

Sec. 52.975 Redesignations and maintenance plans: Ozone.

* * * * *

(d) Approval. The Louisiana Department of Environmental Quality

submitted a redesignation request and maintenance plan for Pointe

Coupee Parish on December 20, 1995. The redesignation request and

maintenance plan meet the redesignation requirements in section

107(d)(3)(E) of the Act as amended in 1990. The redesignation meets the

Federal requirements of section 182(a)(1) of the Clean Air Act as a

revision to the Louisiana ozone State Implementation Plan for Pointe

Coupee Parish. The EPA therefore approved the request for redesignation

to attainment with respect to ozone for Pointe Coupee Parish on

September 20, 1996.

PART 81--[AMENDED]

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

Authority: 42 U.S.C. 7401-7671q.

2. In Sec. 81.319, the ozone table is amended by revising the

entries for the Baton Rouge Area and adding an entry for Pointe Coupee

Area in alphabetical order to read as follows:

Sec. 81.319 Louisiana.

* * * * *

[[Page 37840]]

Louisiana--Ozone

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

Designation Classification

Designated area -------------------------------------------------------------------------------

Date \1\ Type Date Type

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

Baton Rouge Area:

Ascension Parish............ .................. Nonattainment..... .................. Serious.

East Baton Rouge Parish..... .................. Nonattainment..... .................. Serious.

Iberville Parish............ .................. Nonattainment..... .................. Serious.

Livingston Parish........... .................. Nonattainment..... .................. Serious.

West Baton Rouge Parish..... .................. Nonattainment..... .................. Serious.

* * * * * *

*

Pointe Coupee Area:

Pointe Coupee Parish........ September 20, 1996 Attainment........ .................. ..................

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

\1\This date is November 15, 1990, unless otherwise noted.

* * * * *

[FR Doc. 96-18194 Filed 7-19-96; 8:45 am]

BILLING CODE 6560-50-P