Proposed Air Quality Permit 7101 - Potomac Electric Power Company

PUBLIC NOTICE

Proposed Air Quality Permit 7101, Potomac Electric Power Company, Operation of one existing 125 kWe diesel-fired emergency generator set at the Southwest Substation at 225 E Street SW

Notice is hereby given that, pursuant to 40 C.F.R. Part 51.161, D.C. Official Code §2-505, and 20 DCMR §210, the Air Quality Division (AQD) of the Department of Energy and Environment (DOEE), located at 1200 First Street NE, Washington, DC, intends to issue Permit #7101 to Potomac Electric Power Company, to operate an existing 125 kWe Stewart & Stevenson Services, Inc. emergency generator set. The unit is located at the Southwest Substation at 225 E Street SW, Washington, DC 20024. The contact person for the facility is Mary Pekot, Manager Electric Maintenance, phone number: (202) 388-2626.

The proposed emission limits are as follows:

a.   Visible emissions shall not be emitted into the outdoor atmosphere from this generator, except that discharges not exceeding forty percent (40%) opacity (unaveraged) shall be permitted for two (2) minutes in any sixty (60) minute period and for an aggregate of twelve (12) minutes in any twenty-four hour (24 hr.) period during start-up, cleaning, adjustment of combustion controls, or malfunction of the equipment [20 DCMR 606.1].

b.   An emission into the atmosphere of odorous or other air pollutants from any source in any quantity and of any characteristic, and duration which is, or is likely to be injurious to the public health or welfare, or which interferes with the reasonable enjoyment of life or property is prohibited. [20 DCMR 903.1]

The estimated maximum emissions from the emergency generator engine set are as follows:

The application to operate the emergency generator and the draft permit are available for public inspection at AQD and copies may be made between the hours of 8:15 A.M. and 4:45 P.M. Monday through Friday.  Interested parties wishing to view these documents should provide their names, addresses, telephone numbers and affiliation, if any, to Stephen S. Ours at (202) 535-1747.

Interested persons may submit written comments, a written request for a public hearing, or both, on the draft permit action within thirty (30) days of publication of this notice. The written comments or a written request for a public hearing must also include the person’s name, telephone number, affiliation, if any, mailing address and a statement outlining the air quality issues in dispute and any facts underscoring those air quality issues.  All relevant comments or outcome from a public hearing will be considered in issuing the final permit.

Comments on the proposed permit and any request for a public hearing should be addressed to:

Stephen S. Ours 
Chief, Permitting Branch - Air Quality Division

Department of Energy and Environment
1200 First Street NE, 5^th Floor
Washington, DC 20002

[email protected]

No written comments or hearing requests postmarked after December 19, 2016 will be accepted.

For more information, please contact Stephen S. Ours at (202) 535-1747.