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For Immediate Release
May 28, 2021

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Public Notice: Revision to NH State Implementation Plan

In accordance with RSA 541‐A:6 and New Hampshire Administrative Rule Env‐A 204.01 and Title 40 of the Code of Federal Regulations Section 51.102, notice is hereby given that the New Hampshire Department of Environmental Services, Air Resources Division (the Department) has prepared, and intends to submit to the U.S. Environmental Protection Agency, a revision to the New Hampshire’s State Implementation Plan (SIP) to meet the requirements for submitting a second maintenance plan under Clean Air Act section 175A(b), pertaining to the 1997 8-hour ozone National Ambient Air Quality Standard (NAAQS) and the Boston-Manchester-Portsmouth (SE) Area. The purpose of this notice is to identify that public comments regarding this action will be received, and that a public hearing regarding this action will be held if one is requested.

Portions of southeastern New Hampshire were classified as moderate nonattainment for the 1997 ozone standard in 2004 and then redesignated unclassifiable/attainment in 2012. Part of New Hampshire’s 2012 redesignation submittal included a maintenance plan for the first 10-year period (through 2022). Therefore, this maintenance plan covers the second 10-year period (2023 through 2032). The Boston-Manchester-Portsmouth (SE) Area has continued to maintain attainment for the 1997 8-hour ozone NAAQS since 2012. Furthermore, this area has demonstrated attainment under the more stringent 2008 and 2015 8-hour ozone NAAQS. Ambient air quality monitoring data for these areas indicates ozone concentrations in these areas are continuing a downward trend.

The Department is hereby soliciting comments on the proposed SIP revision. The Department will receive written comments on the proposed SIP revision until 4:00 p.m. on Wednesday, June 30, 2021. If a request for a public hearing is received by Friday, June 25 at 4 p.m., the hearing will be held on Wednesday, June 30 at 10 a.m. in Room 208C, at the office of the New Hampshire Department of Environmental Services, located at 29 Hazen Drive in Concord, NH. The hearing will also be held online using the virtual meeting software WebEx. Please contact Karla McManus at [email protected] to obtain the WebEx link, meeting number and password.

Participants may also participate by phone:

  • Call-in number: 1-415-655-0001
  • Access Code: 1722 25 0067
  • Meeting Password: mDy59G8UPqr

Testimony may be presented orally at the public hearing. If a request for a public hearing is not received by Friday, June 25 at 4 p.m., the hearing will be cancelled. Notification of cancellation will be posted on the calendar of the Department website. Please submit written comments to Lisa Camire, SIP Planning Analyst, NHDES, Air Resources Division, PO Box 95, Concord, NH 03302-0095, Fax (603) 271-7053 or email at [email protected].

Copies of all documentation pertaining to New Hampshire’s SIP are available for inspection at the offices of the Department at 29 Hazen Drive, Concord, NH 03302. The proposed SIP revision is also posted on the NHDES website. Questions regarding the proposed SIP revision should be directed to Lisa Camire at [email protected] or (603) 271-4848.

The public comment period ends at 4:00 p.m. on Wednesday, June 30, 2021.