**UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION III**  **1650 Arch Street Philadelphia, Pennsylvania 19103** 

**- 2029** 

May 31 , 20 12 **SUB JECT**  **:** Technical Support Document

- Adequacy Findings for the Motor Vehicle Emissions Budgets in the 20 0 9 Attainment Plan for the Delaware Portion of the Philadelphia

- Wilmington

- Atlantic City Nonattainment Area (New Castle, Kent and Sussex Counties)

**FROM:** /S/

Martin Kotsch, Office of Air Program Planning (3AP30)

**TO:** Adm inistrative Record for the Adequacy Findings for the Motor Vehicle Emissions Budgets in the 20 0 9 Attainment Plan for the Delaware Portion of the Philadelphia

- Wilmington

- Atlantic City Nonattainment Area (New Castle, Kent and Sussex Counties)

**THRU :**  /S/

Donna Mastro, Acting Associate Director Office of Air Program Planning (3AP30)

I. Administrative Requirements For Making Adequacy Findings We have followed the process for determining the adequacy of the submitted S tate I mplementation P lan (SIP) Motor Vehicle Emissions B udgets (MVEBs) in accordance with the procedures listed in the January 2008 Conformity

Regulations contained in 40 CFR part 93

. 118(f) “ Adequacy review process for implementation plan submissions .”

On June 13 , 2007, the Delaware Department of Natural Resources and Environmental Control ( DNRE C ) formally submitted a combined 2008 Reasonable Further Progress Plan (hereafter the 2008 RFP Plan) and 2009 8

- Hour Ozone Attainment Demonstration Plan (hereafter th e 2009 attainment demonstration) for the Delaware Portion of the Philadelphia

- Wilmington

- Atlantic City 8

- Hour Ozone Nonattainment Area as a State Implementation Plan (SIP) revision. This TSD is only

addressing the MVEBs contained in the 200 9 attainment demonstration since on April 8, 2010 (75 FR 17893) EPA had previously approved and found adequate the MVEBs for the 2008 RFP plan

.EPA will be issuing its own Notice of Proposed Rulemaking for a 30

- day public comment period soliciting public comment as to the approvabilit y of the Delaware SIP submission. Concurrently with EPA’s Notice of Proposed Rulemaking, a notice will be posted on EPA’s website at http://www.epa.gov/otaq/stateresources/transconf/currsips.htm for the purpose of opening EPA’s 30

- d ay

public comment period on the adequacy /approvability

of the budgets in the SIP revision. That notice will inform the public of the availability of the Delaware SIP revision on its own website. EPA’s website notice will provide a link to the address for the website where interested members of the public could access the SI P revision. Following EPA’s public comment period, responses to an y comments received on the proposed mobile budgets in the Delaware SIP will be addressed in an amendment to this Techni cal Support Document (TSD).
**II. Evaluation of the Budgets Table 1** 

**- The Budgets** 

Clean Air Act Requirement Milestone Year Mobile Vehicle Emissions Budget for NOx in Tons Per Day Mobile Vehicle

Emissions Budget for VOC s in Tons Per Day
Attainment Demonstration New Castle County 200 9 19

. 23 9.89

Attainment Demonstration Kent County 200 9 9. 04 3.95

Attainment Demonstration Sussex County 200 9 1 1

. 93 7.0 5

**Table 2 Adequacy of the Budgets in the**  **200 9**  **Attainment Demonstration**  **for the Delaware Portion** 

**of the Philadelphia**

**- Wilmington** 

**- Atlantic City**  **Ozone Nonattainment Area (New Castle**  **, Kent and Sussex**  **Counties Budgets)**  **Transportation Conformity Rule**  **40 CFR Part 93, '**  **93.118 Review Criteria**  **Was the Criterion Satisfied? If Yes H**  **ow was this Criteria Satisfied?**  Sec. 93.118(e)(4)(i) Was the submitted control strategy implementation plan endorsed b y the Governor (or his or her designee) and subject to a State public hearing? Yes. The SIP was endorsed and submitted by

the Secre tary of DNREC, the Governor ’ s designee formally delegated the authority

to submit SIP revisions to EPA. A public hearing was held.

Sec. 93.118(e)(4)(ii) Before the control strategy implementation plan was submitted to EPA, did consultation between F ede ral, State and local agencies occur; was full implementation plan documentation provided to EPA, and was EPA ’ s stated concerns, if an y, addressed? Yes. Consultation has occurred among all required federal, state and local agencies.Sec. 93.118(e)(4)(ii i) Were the motor vehicle emissions budgets clearly identified and precisel y quantified? Yes. The 200 9 budgets are found in Table 9

- 2 of the attainment p lan submittal.

Sec. 93.118(e)(4)(iv) Are the motor vehicle emissions budgets , when considered together with all other emission reductions, consistent with applicable requirements for the control strategy implementation plan? Yes

. The budgets are consistent with the ROP plan ’ s requirements. The SIP submittal demonstrates that the control measures and strategy adopted and imposed by Delaware in New Castle, Kent and Sussex Counties achieve the reductions necessary to meet the ROP requirements. The control measures include the FMVCP and RVP, Tier I Vehicle Emission Standards, Enhanced I/M, RFG, H DDE, the NLEV Program and the Tier 2/Sulfur

- in Fuel Rule.Sec. 93.118(e)(4)(v) Are the motor vehicle emissions budgets consistent with and clearl y related to the emissions inventory

and the control measures in the submitted control str ategy implementation plan? Yes.

Sec. 93.118(e)(4)(vi) Revisions to previously submitted control strategy implementation plan: explain and document an y changes to previously

submitted budgets and control measures; impacts on point and area source emiss ions; any changes to established safety margins (see Sec. 93.101 for definition); and reasons for the changes (including the basis for an y changes related to emission factors or estimates of vehicle miles traveled). Yes. The SIP submission explains that the revised MVEBs are in response to EPA’s 1997 revision to the previous ozone standard. This revision revoked the previous1

- hour ozone standard and replaced with a more stringent 8 hour ozone standard

.

Sec. 93.118(e)(5) Did they provide and did we review public comments and the State ’ s responses to those comments with the submitted control strategy

SIP? There were no comments on

the proposed mobile emissions budgets in the SI P.

**III. Findings** 

- Based upon our review and evaluation of the budgets contained in the attainment demonstration for 200 9 submitted on June 12 , 2007 by the State of Delaware for New Castle, Kent and Sussex Counties, we recommend that the motor vehicle budgets be found adequate.

**IV. The Applicable Motor Vehicle Emissions**  **Budgets for Purposes of Demonstrating Conformity**  **for 200 9**  **in New Castle Counties , Kent and Sussex**  **Counties**

**-** The applicable motor vehicle emissions budgets for purposes of demonstrating conformity are 1 9

. 2 3 tons/day

of NOx and 9

. 89 tons/day VOC for New Cas tle County

and 9

. 04 tons/day

of NOx and 3

. 95 tons/day VOC for Kent County

and 1 1

. 93 tons/day of NOx and 7.0 5 tons/day of VOC for Sussex County

.