Notice of Public Comment Period - Draft Air Quality Permits 7174-A1, 7175-A1, and 7176-A1, U.S. General Services Administration

PUBLIC NOTICE

Draft Air Quality Permits 7174-A1, 7175-A1, and 7176-A1, U.S. General Services Administration
Construction and operation of two identical 3,500 kWe Cummins emergency generator sets and one 2,500 kWe Caterpillar emergency generator set with add-on emission control systems at the Saint Elizabeths West Campus, 2701 Martin Luther King Jr. Ave. SE

Notice is hereby given that, pursuant to 20 DCMR §210, the Air Quality Division (AQD) of the Department of Energy and Environment (DOEE), located at 1200 First Street NE, 5^th Floor, Washington, DC, intends to issue permits (Nos. 7174-A1, 7175-A1, and 7176-A1) to the U.S. General Services Administration to construct and operate two 3,500 kWe Cummins emergency generator sets and one 2,500 kWe Caterpillar emergency generator set (listed below), all with associated Selective Catalytic Reduction (SCR), Diesel Oxidation Catalyst (DOC), and Diesel Particulate Filter (DPF) systems (hereafter referred to in combination as “add-on emission control systems”), to be located at the Saint Elizabeths West Campus, 2701 Martin Luther King Jr., Ave. SE, Washington DC. The contact person for the facility is Gaftie Marlow Jr., Project Manager, at (202) 380-8511.

The following emergency generator sets are to be permitted:

Equipment Location	Generator Name	Generator Model	Generator Output (kWe)	Engine Size (hp)	Fuel Type	Permit Number
Central Utility Plant 2	Emg Gen 1	C3500  D6e	3,500	5,051	No. 2 Fuel Oil	7174-A1
Central Utility Plant 2	Emg Gen 2	C3500  D6e	3,500	5,051	No. 2 Fuel Oil	7175-A1
Central Utility Plant 2 Roof	Emg Gen 4	2500 DQKAN	2,500	3,640	No. 2 Fuel Oil	7176-A1

Estimated maximum emissions from the units are as follows:

Pollutant	Maximum Annual Emissions (tons/yr)
	Each 5,051 hp Engine	The 3,640 hp Engine	Total
Particulate Matter (PM)	0.07	0.05	0.19
Carbon Monoxide (CO)	7.26	5.23	19.75
Oxides of Nitrogen (NOx)	1.60	1.16	4.36
Volatile Organic Compounds (VOC)	0.40	0.31	1.11
Oxides of Sulfur (SOx)	0.02	0.01	0.05

The proposed emission limits are as follows:

a.   During startup, emissions from each of the generator sets shall not exceed those found in the following table (Table 1) 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)]:
^{For purposes of these permits, startup shall be defined as the period of time from the time the engine is turned on to the time the add-on emission control systems activate.}

Table 1: Pollutant Emission Limits (g/kWm-hr) during Startup
NMHC+NOx	CO	PM
6.4	3.5	0.20

b.   At all times the generator sets are operated, outside of startup periods, emissions shall not exceed those found in the following table (Table 2) as measured using the procedures set forth in 40 CFR 1039, Subpart F [20 DCMR 201]:

Table 2: Pollutant Emission Limits (g/kWm-hr) during Steady State Operation
NOx	NMHC	CO	PM
0.67	0.19	3.5	0.03

c.   Visible emissions shall not be emitted into the outdoor atmosphere from the generators, 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].

d.   In addition to Condition II(c), 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; and

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.

e.   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 application to construct and operate the emergency generator sets all with associated add-on emission control systems 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

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

[email protected]

No comments or hearing requests submitted after September 17, 2018 will be accepted.

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