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Proposed Air Quality Permits 6848-6850 – United States Department of Commerce

Friday, November 7, 2014


Proposed Air Quality Permits 6848-6850 – United States Department of Commerce, Three existing 2,000 kW diesel fired emergency generator sets at 1401 Constitution Avenue NW

Notice is hereby given that, pursuant to 40 C.F.R. Part 51.161, and D.C. Official Code §2-505, the Air Quality Division (AQD) of the District Department of the Environment (DDOE), located at 1200 First Street NE, 5th Floor, Washington, DC, intends to issue Permit Nos. 6848, 6849, and 6850 to the United States Department of Commerce, to operate three existing, identical, 2,000 kW Cummins emergency generator sets with associated 2,919 diesel fired engines (Unit 1, Unit 2, and Unit 3, respectively), located in Washington, DC. The contact person for the applicant is Anthony Kesslak, Manager, Safety & Occupational Health, at (202) 482-2520.

Emergency Generators to be Permitted

Equipment Location 


Generator Standby Rating (Engine Size)

Model Numbers (Engine/ Generator)

Permit Nos.

U.S. Department of Commerce

1401 Constitution Ave NW

Washington, DC 20230

2,000 kW

(2,919 bhp/2,177 kW)

Cummins/ 2000DQKAB

6848, 6849, 6850

The proposed emission limits are as follows:

  1. Emissions shall not exceed those found in the following table, as measured according to the procedures set forth in 40 CFR 89, Subpart E. [40 CFR 60.4205(b), 40 CFR 60.4202(a)(2) and 40 CFR 89.112(a)]

Emission Standards









b.   Visible emissions shall not be emitted into the outdoor atmosphere from each 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]

c.   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 each emergency generator are as follows:


Maximum Annual Emissions (tons/yr)

Carbon Monoxide (CO)


Oxides of Nitrogen (NOx)


Volatile Organic Compounds (VOC)


Total Particulate Matter , PM (Total)


Sulfur Dioxide (SOx)


The applications to operate the emergency generators and the draft set of permits and supporting documents are available for public inspection at AQD and copies may be made available 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 or may request a hearing on this subject within 30 days of publication of this notice.  The written comments 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 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

District Department of the Environment
1200 First Street NE, 5th Floor
Washington, DC 20002

[email protected]

No written comments or hearing requests postmarked after December 8, 2014 will be accepted.

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