Richmond, Virginia

RICHMOND, VIRGINIA

Proposed Rule: 62 FR 32258, 6/13/97
Final Rule: Effective date 12/17/97 (62 FR 1237, 11/17/97)

Maintenance Plan - Key Features

• 1993 attainment year inventory; projections to 2007
• control measures include: tion, and automobile refinishing; and source-specific seasonal NO_x emission limits (emission caps) on two point sources of NO_x in the nonattainment area
• track status and effectiveness of plan by updating the emission inventory annually and through periodic evaluations
• develop and submit to EPA comprehensive tracking inventories every three years during the maintenance period
• obtain source emissions data through annual emission statements program
• continue to monitor ambient ozone levels in accordance with 40 CFR part 58
• continue to follow appropriate QA/QC procedures and enter the data into AIRS
• submit a revised maintenance SIP eight years after redesignation to attainment; SIP will provide for maintenance for an additional ten years

Contingency Plan Trigger

• Trigger 1: VOC or NO_x emissions exceed regional emissions budgets with no more than one recorded ozone exceedance
• Trigger 2: two or more monitored exceedances of the ozone NAAQS at any one monitor
• Trigger 3: monitored violation of the ozone standard
• Trigger 4: violation of the ozone NAAQS at any one monitor after the I/M contingency measures has been implemented
• Trigger 5: more than 2 violations of the ozone NAAQS at any individual monitor following implementation of I/M and NO_x RACT contingency measures

Contingency Measures

• upon Trigger 1, state will prepare a complete VOC and NO_x emission inventory and implement voluntary control measures such as an ozone health advisory notification program
• upon Trigger 2, voluntary controls will continue to be implemented
• upon Trigger 3, state commits to implement a basic I/M program
• upon Trigger 4, state commits to implement NO_x RACT on sources emitting greater than 100 tons per year
• upon Trigger 5, more restrictive requirements on open burning will be implemented and, if appropriate, transportation control measures will be developed and implemented

Schedule

Basic I/M contingency measures will be implemented as follows:

1. Notification received from EPA that a contingency measure must be implemented, or 3 months after a recorded violation

2. Applicable regulation to be adopted 12 months after date established in "1" above

3. Regulation implemented within 8 months of adoption

4. Program will complete one full cycle 2 years after implementation

Other contingency measures will be implemented as follows:

1. Notification received from EPA that a contingency measure must be implemented, or 3 months after a recorded violation

2. Applicable regulation to be adopted 12 months after date established in "1" above

3. Regulation implemented within 6 months of adoption

4. Compliance achieved within 12 months of adoption

For further information:

Kristeen Gaffney

Ozone/Carbon Monoxide and Mobile Sources Section (3AT21)
U.S. EPA, Region III
841 Chestnut Bldg.
Philadelphia, PA 19107

Telephone: (215) 566-2092; Email: gaffney.kristeen@epamail.epa.gov