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Proposed Air Quality Permits 7089-7093 - United States Department of the Interior

Friday, January 27, 2017


Proposed Air Quality Permits 7089-7093, United States Department of the Interior, Construction and operation of five 6.0 MMBTU/hr natural gas-fired boilers at 1849 C Street NW

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, 5th Floor, Washington, DC, intends to issue Permit Nos. 7089 through 7093 to the United States Department of the Interior to construct and operate five 6.0 MMBTU/hr rated heat input natural gas-fired boilers at the Department of the Interior facility, located at 1849 C Street NW, Washington DC 20240. The contact person for the facility is Richard Farr, Chief, Facilities Management and Services Division, at (202) 208 - 3056   


The estimated maximum annual emissions from each of the five 6.0 MMBTU/hr natural gas-fired boilers are expected to be as follows:


Maximum Annual Emissions for Each Boiler



Total Particulate Matter (PM Total)


Sulfur Dioxide (SO2)


Nitrogen Oxides (NOx)


Volatile Organic Compounds (VOC)


Carbon Monoxide (CO)


The proposed emission limits are as follows:

    1. Each of the five (5) identical 6.0 million BTU per hour AERCO Benchmark 6000 natural gas-fired boilers, shall not emit pollutants in excess of those specified in the following table [20 DCMR 201]:

Boiler Emission Limits


Short-Term Limit (lb/hr)

Carbon Monoxide (CO)


Oxides of Nitrogen (NOx)


Total Particulate Matter (PM Total)


Sulfur Dioxide (SO2)


*PM Total includes both filterable and condensable fractions.

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

d.   Total suspended particulate matter (TSP) emissions from each of the boilers shall not exceed 0.11 pound per million BTU. [20 DCMR 600.1]

The permit applications and supporting documentation, along with the draft permits 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 public 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 permits and any request for a public hearing should be addressed to:

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

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

[email protected]


No comments or hearing requests submitted after February 20, 2017 will be accepted.
For more information, please contact Stephen S. Ours at (202) 535-1747.