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Proposed Air Quality Permit 7098 - Potomac Electric Power Company

Friday, April 21, 2017

PUBLIC NOTICE

Proposed Air Quality Permit 7098, Potomac Electric Power Company, Operation of one existing 300 kWe diesel-fired emergency generator set at the Alabama Avenue Substation, 3302 15th Street SE

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 No. 7098 to Potomac Electric Power Company, to operate a 300 kWe emergency generator set powered by a 463 hp John Deere diesel-fired engine. The unit is located at the Alabama Avenue Substation, 3302 15th Street SE, Washington, DC 20032. 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.   Emissions from the generator set shall not exceed those found in the following table as measured using the procedures set forth in 40 CFR 89, Subpart E for NMHC, NOx, and CO and 40 CFR 89.112(c) for PM [40 CFR 60.4205(b), 40 CFR 60.4202(a), and 40 CFR 89.112(a)-(c)]:

Pollutant Emission Limits (g/kW-hr)

NMHC+NOx

CO

PM

4.0

3.5

0.20

b.   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].

c.   In addition to Condition (b), exhaust opacity, measured and calculated as set forth in 40 CFR 86, Subpart I, shall not exceed [40 CFR 60.4205(b), 40 CFR 60.4202(a), and 40 CFR 89.113]:

1.   20 percent during the acceleration mode;

2.   15 percent during the lugging mode;

3.   40 percent during the peaks in either the acceleration or lugging modes.  Note that this condition is streamlined with the requirements of 20 DCMR 606.1.

d.   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 set are as follows:

Pollutant

Maximum Annual Emissions (tons/yr)

Carbon Monoxide (CO)

0.17

Oxides of Nitrogen (NOx)

0.72

Volatile Organic Compounds (VOC)

0.01

Total Particulate Matter (PM Total)

0.02

Oxides of Sulfur (SOx)

0.24

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, 5th Floor

Washington, DC 20002


[email protected]


No comments or hearing requests submitted after May 22, 2017 will be accepted.

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