Updated March 10, 2010

Page 1

VDEQ Conceptual Description for the Inclusion of Distributed Generation Units in Base 

Year and Future Year Modeling Efforts

Issue: 

VDEQ has identified the need to examine more closely in modeling studies the effects 

on ozone air quality of distributed generation units. 

Background: 

Distributed generation units are mainly internal combustion engines that participate in 

some type of demand response program. These are small units, each usually no more 

than 2 or 3 megawatts in capacity, and they generally run on distillate fuel oil Most are 

permitted for well under 100 tons of NOx emissions annually and do not run frequently. 

Annual emissions of NOX are usually not very large from these units. However, ozone 

season daily emissions estimates from previous ozone SIPs show that facilities that 

have one or more of these types of units can be quite significant NOX emitters when 

examined on an ozone season daily basis. For instance, in 2002 in the Northern 

Virginia portion of the metro DC ozone nonattainment area, the inventory estimate for 

point sources includes about 60 tons/day of NOX. EGU’s account for 40 tons/day of 

NOX. Distributed generation units account for just over 10 tons/day NOX. In 2002 for 

the Northern Virginia region, distributed generation units were the second largest point 

source NOX-emitting category, and many new facilities of this type have been permitted 

since 2002.

In Northern Virginia especially, but across the Commonwealth, demand response 

programs are gaining in popularity, and utilities are actively recruiting participants. Such 

demand response programs are very helpful in maintaining the integrity of the power 

grid during high demand days or times when power capacity in small areas with 

transmission constraints is being taxed. However, older units can have very high 

emissions, and control strategies do exist to significantly reduce NOX from these units. 

Previous modeling efforts minimized the effects of these units on air quality because the 

annual emission rates were not very large (less than 100 tons/year NOX) and because 

the default profile of 365 days of operation annually was applied to the annual emission 

rate in the modeling inventories. This calculation methodology greatly minimized the 

impacts from these units.

VDEQ would like to facilitate the review of these units for potential future control 

strategies by creating a profile for distributed generation that more accurately reflects 

operating conditions. Such a profile will limit operations of such units to a smaller, more 

representative number of days during the year and to a limited number of hours during 

each day, as dictated by actual operating data. NOx emissions on a daily basis will 

therefore increase as compared to the daily NOX emissions based on the default profile. 

NOX emissions will also vary from day to day, depending on the number of hours of 
Updated March 10, 2010

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operation for that day. Once these units are more accurately represented in base year 

emissions inventories and modeling platforms, control strategy runs may be performed 

to determine if controlling these units will improve ozone air quality in the Northern 

Virginia/metro DC area.

Methodology:

To more accurately characterize emissions from distributed generation, VDEQ intends 

to follow these steps in the inventory and modeling process.

1. Inclusion of DG units in the Emissions Inventory: The first step is to ensure that 

as many distributed generation units are included in the base year inventory as 

possible. Often agencies use 10 tons/year of any criteria pollutant as a cutoff for 

inclusion of point sources in the point source modeling inventory. VDEQ used a 

10 ton/year level to ensure that as many units were captured as possible, while 

screening out sources with emissions that are too small to be of any

consequence. However, VDEQ also included stack/point/segment combinations 

identified by the regional office or by EIA data as distributed generation units, 

regardless of emissions rates. These line items were identified by county plant 

identifiers as well as stack, point, segment identifiers. 2007 data were retrieved

from CEDS on these line items, and this data was provided to the regional 

planning organization (MARAMA) as well as the base year emissions inventory 

contractor (MACTEC). A listing of the identified DG units in the 2007 base year 

inventory is contained in Table 5. The table identifies if the unit was originally 

part of the 2007 inventory or if it was added to the inventory as a DG unit.

2. Identification of DG units: VDEQ also intends to maintain a listing of 

stack/point/segment combinations that represent DG units both statewide and in 

the Northern Virginia area. The emissions profile created from base year 

(assumed to be 2007) operations data will be applied to all pollutant emissions

for each unit identified as a DG unit. This listing will also be helpful when 

applying a NOX control strategy reduction factor.

At least one regional office, the Northern Regional Office (NRO), has a detailed 

listing of registration numbers and units that are or may be distributed generation 

units. Additionally, EIA data can be used to identify other units. Analysis of the 

EIA data for Virginia units has already been performed to ensure that these units 

are in the Virginia database. CEDS data regarding hours of operation were

examined in creating the listing in Table 5. If a unit’s hours of operation as listed 

in CEDs indicated significantly more operational time than would normally be 

expected by a distributed generation unit, then that unit was removed from the 

listing and will not have the distributed generation profile applied in the 2007 

base year regional air quality modeling. Figure 1 below shows the locations of 

these facilities in the Commonwealth.
Updated March 10, 2010

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Figure 1: Location of DG Units in the Commonwealth

3. Inventory Review: After a listing of potential DG units was created from EIA and 

regional office input, the 2007 inventory data for all line items were examined and 

modified as follows:

3.a. Stack Parameters: Stack data for each stack/point/segment combination 

were examined to ensure all necessary modeling parameters exist in the 

database. A point to note is that many IC engines have horizontal stacks and are 

equipped with some type of sound muffler. Newer units are more often equipped 

with vertical stacks. For any stack with an obstructed or non-vertical discharge, 

the exit gas velocity was changed to 0.001 meters/second (0.003 feet/second). 

For any stack with no stack data due to the stack being labeled as a fugitive 

emissions source, the height was changed to 15 feet, the diameter was changed 

to 1.5 feet, the stack temperature was changed to 900 deg F, the stack 

configuration was changed to a horizontal discharge, and the exit gas velocity 

was changed to 0.001 meters/second (0.003 feet/second). A few line items did 

not have latitude and/or longitude data in the correct decimal format. That 

information was provided from the UTM converter in CEDS.
Updated March 10, 2010

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3.b. Non DG operations: Care was taken to remove from the inventory any 

engines that may be associated with rock processing plants, asphalt plants, or 

concrete plants. Also, for facilities that were beneath the 10 tons/year cut off 

and therefore would not normally be included in the 2007 point source modeling 

inventory, any line item in that facility’s inventory that was not related to DG 

operations was deleted and not added to the 2007 point source modeling 

inventory.

3.c. Non-operational units: For facilities that were beneath the 10 tons/year 

threshold and therefore not normally included in the 2007 point source modeling 

inventory, any distributed generator line item with zero emissions was deleted, 

even if the line item was considered to be planned for operations. Also deleted 

from the DG inventory was any line item identified as DG and normally in the 

2007 point source modeling inventory but that had zero 2007 emissions. 

3.d. Emissions inventory: The 2007 CEDS data only included the filterable 

portion of the particulate emissions from all units. Additionally, some DG units 

were coded with both PM10 and PM2.5, and some were coded with either PM10 or 

PM2.5. Some were also coded without any mention of PM10 and PM2.5. The main 

thrust of this inventory and modeling exercise is to examine DG units’ effect on 

ozone concentrations. However, since augmented data to help fill in data gaps 

were available from MACTEC, the augmented data containing filterable and 

condensable PM emissions fractions as well as data for PM10 and PM2.5 were 

included in the final DG inventory.

4. Creation of an emissions profile: VDEQ used 2007 operations data obtained 

from Dominion Virginia Power for their demand response programs (including the 

Manassas VMEA program) as well as data obtained from AOL, NOVEC, and 

duPont Fabros to create a 2007 profile for when these units generally operated. 

To simplify the creation of the profile, units are assumed to be operating at full 

capacity whenever they are being used. The generic profile will be applied to all 

units identified as DG units in the 2007 emissions inventory for Virginia.

5. Application of the emissions profile: VDEQ developed a generic profile in a

SMOKE readable format for each pollutant listed in the emissions inventory. This

profile simulates a step function, turning on and off the identified generation units 

depending on their operational mode. VDEQ passed on this profile to the 

emissions inventory contractors and requested that it be included in both base 

and future inventories for SMOKE modeling. 

Figure 2 below graphically presents the application of the chosen profile during 

May of 2007 on an example unit. Units are assumed to be on or off, and when 

on, the units are assumed to be operating at the same load and emissions rates. 
Updated March 10, 2010

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Figure 2: May 2007 DG Operations for 51-047-00044

6. Future year control strategies: In future years, control strategies that assume up 

to 90% -95% NOX reduction can be applied to the distributed generation units

that are not already controlled.

7. Growth Factors: In previous emissions inventory work, growth factors for these 

types of units were created using E-GAS, which underestimated the growth of 

this source sector between 2002 and 2009. One issue for future consideration is 

the creation of a better estimate of growth between base and future years for this 

source sector.

Development of the Emissions Profile:

Table 4 below summarizes the information collected from a variety of sources in the 

distributed generation sector. Dominion provided 2007 data for its stand-by generation

(SG) program. The program is also referred to as a curtailable service and stand-by 

generation program. The program requests that facilities reduce load such as shutting 

down a production line or requests that existing generation be brought on line to peak 

shave or sell power back to the grid. Dominion also provided 2007 operations data for 

the VMEA, which is a co-op with the City of Manassas. These units can operate as 

stand-by generation or peak shavers. 
Updated March 10, 2010

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The NRO staff provided data gathered during the execution of several enforcement 

actions against distributed generation units. Data from an America On-Line (AOL) data 

center site, a duPont Fabros (DFT) data center site, and Northern Virginia Electric 

Cooperative (NOVEC) are listed. These facilities have large amounts of generation on 

site, sometimes totaling more than 25 MW of capacity. The purpose of the generation

at data centers is to provide back up power to ensure that data center operations 

maintain a high level of up time, often required in contracts to be better than 99.9% 

reliable. These facilities also have lucrative contracts to use this generation in a 

distributed generation program. It should be noted that as a result of the enforcement 

actions brought by NRO, many of these units have been retrofitted with either open or 

closed loop SCR to reduce NOX emission by 80%-90%.

Table 4 demonstrates that in 2007, a significant amount of overlap existed for days and 

times when these units were in operation. Also, four days (grey highlighted rows) 

contain two separate time periods when units were called to participate in various 

programs. To create a generic profile, Table 4 examines two methods for analyzing the 

data.

The first method (option 1) includes every day that any program operated according to 

the known data. For any day that a program operated, the data for the day with the 

most hours of operation was included in the generic profile. These columns are labeled 

“Generic Profile, Any Run Day” in Table 1. When including all days for which data exist, 

the generic profile for 2007 would contain 514 hours of operation over 111 days during 

the year. When compared to the maximum that any one particular program operated 

(93 days, and 314 hours), this methodology tends to overestimate the amount of time 

any unit is on line. However, as shown in the examples below, the results are quite a bit 

higher than the application of the default profile.

The second method (option 2) includes every day that any two programs operated 

according to the known data. For any day that two programs operated, the data for the 

day with the most hours of operation was included in the generic profile. These

columns are labeled “Generic Profile, Days with Two or More Data Points.” When 

including these parameters in the make-up of the generic profile, the profile for 2007 

would contain 381 hours and 92 day of operation. This methodology seems to better 

represent the maximum program times and days although it may still overestimate the 

number of hours of operation in the stand-by generation program operated by 

Dominion. Overestimation of the number of hours results in underestimation of daily 

and hourly emission rates for NOX.

As an example of how each profile may be applied, assume a facility has three units, 

each 2 MW. Two units reported emitting 10 tons of NOx in 2007, each. One unit 

emitted 5 tons of NOx in 2007. 

If the default, 365 day, 8760 hrs/year operational profile was assumed, the units would 

have the following emission rates in the modeling analysis:
Updated March 10, 2010

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Table 1: Example Emissions from a Hypothetical DG Facility, using 365 days/year

Unit Annual NOx Daily NOx

Unit 1 10 tons NOx/year 0.027 tons NOx/day

Unit 2 10 tons NOx/year 0.027 tons NOx/day

Unit 3 5 tons NOx/year 0.014 tons NOx/day

Total NOx in 2007 25 tons NOx 0.068 tons NOx/day

The calculation is as follows:

10 tons NOx/yr * 1 yr/8,760 hrs * 24 hrs/day = 0.027 tons NOx/day

Each day and each hour would have exactly the same amount of emissions.

If the first generic profile is used (option 1), 514 hours are divided up over 111 days. 

The maximum number of hours of operation in any day is 16, which occurs in 

December. Twelve hours is the maximum for the ozone season and occurs August 8

th

from 11:00 to 23:00. For this ozone season example, 12 hours will be used:

Table 2: Example Emissions from a Hypothetical DG Facility, using 111 days/year

Unit Annual NOx Daily Ozone Season NOx

Unit 1 10 tons NOx/year 0.23 tons NOx/day

Unit 2 10 tons NOx/year 0.23 tons NOx/day

Unit 3 5 tons NOx/year 0.12 tons NOx/day

Total NOx in 2007 25 tons NOx 0.58 tons NOx/day

10 tons NOx/yr * 1 yr/514 hr * 12 hours/day = 0.23 tons NOx/day

In the model, these hourly and daily emissions for August 8th would be assigned to 

11:00 through 23:00. Each day would vary, as noted in Table 4.

If the second generic profile is used (option 2), 381 hours will be divided over 92 days. 

Again, August 8th provides the summer day with the most hours of operation (12), so 

this day will be used for comparison:

Table 3: Example Emissions from a Hypothetical DG Facility, using 92 days/year

Unit Annual NOx Daily Ozone Season NOx

Unit 1 10 tons NOx/year 0.31 tons NOx/day

Unit 2 10 tons NOx/year 0.31 tons NOx/day

Unit 3 5 tons NOx/year 0.16 tons NOx/day

Total NOx in 2007 25 tons NOx 0.78 tons NOx/day

10 tons NOx/yr * 1 yr/381 hours * 12 hours/day = 0.31 tons NOx/day
Updated March 10, 2010

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This methodology is not nearly as accurate a procedure for assigning emissions as is 

the CAMD emissions data from CEMS. However, at the current time, it may be the best 

methodology available for better representing the emissions from the distributed 

generation category in the base year emissions inventory.

After review of the data, option 2 above was chosen to create the profile for the DG 

units. This approach omits days from the profile where only one system was running, 

which reduces the time operated by 19 days. It spreads the emissions over 381 hours 

in the year rather than 514 hours. This total hourly value is higher than any of the 

hourly operations of any of the systems as shown in Table 4 so that the estimates on an 

hourly basis from each system should be conservative, with little overestimation of 

hourly emission rates.
Updated March 10, 2010

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Table 4: Operational Data from Selected VA Companies Engaged in Distributed Generation

DATE NOVEC AOL DFT Dominion-SG Dominion-VMEA

Generic Profile, 

Any Run Day (option 1)

Generic Profile, Days 

with 2 or more data 

points (option 2)

Hrs Start 

Time

Stop 

Time Hrs

Start 

Time

Stop 

Time Hrs Hrs

Start 

Time

Stop 

Time Hrs

Start 

Time

Stop 

Time Hrs Start Time

Stop 

Time Hrs Start Time

Stop 

Time

1/3/2007 2 7:00 9:00 2 0700 0900 2.5 2 0700 0900 2 0700 0900

1/10/2007 1.75 7:00 8:40 1.5 0700 0830 2 1.75 7:00 8:40 1.75 7:00 8:40

1/10/2007 3 18:00 21:00 3 1800 2100 3.6 3 18:00 21:00 3 18:00 21:00

1/11/2007 1.5 7:00 8:30 1.5 0700 0830 2 1.5 7:00 8:30 1.5 7:00 8:30

1/17/2007 1.25 7:00 8:15 1 0700 0800 1.7 1.25 7:00 8:15 1.25 7:00 8:15

1/18/2007 2 7:00 9:00 2 0700 0900 2.6 2 7:00 9:00 2 7:00 9:00

1/26/2007 2 7:00 9:00 1.5 0700 0830 2.1 2 7:00 9:00 2 7:00 9:00

1/30/2007 1.25 7:00 8:15 1 0700 0800 1.7 1.25 7:00 8:15 1.25 7:00 8:15

2/1/2007 2 7:00 9:00 2 0700 0900 2.6 2 7:00 9:00 2 7:00 9:00

2/1/2007 2 18:00 20:00 2 1800 2000 2.6 2 18:00 20:00 2 18:00 20:00

2/5/2007 3 7:00 10:00 2 0700 0900 2.6 5 600 1100 4 500 900 5 600 1100 5 600 1100

2/5/2007 3 18:00 21:00 3 1800 2100 3.5 3 18:00 21:00 3 18:00 21:00

2/6/2007 3.25 6:00 9:15 3 0600 0900 3.6 5 600 1100 5 500 1000 5 500 1000 5 500 1000

2/16/2007 1.25 7:00 8:15 2 0700 0900 1.7 5 1700 2200 5 1700 2200 5 1700 2200

3/1/2007 3 6:00 9:00 3 0600 0900 3.4 3 6:00 9:00 3 6:00 9:00

3/5/2007 2.5 6:00 8:30 2.5 0600 0830 3 2.5 6:00 8:30 2.5 6:00 8:30

3/5/2007 3 18:00 21:00 3 1800 2100 3.6 3 18:00 21:00 3 18:00 21:00

3/6/2007 3 6:00 9:00 3 0600 0900 3.8 3 6:00 9:00 3 6:00 9:00

3/6/2007 2 19:00 21:00 2 1900 2100 2.5 2 19:00 21:00 2 19:00 21:00

3/7/2007 2.75 6:00 8:40 2.5 0600 0900 3 2.75 6:00 8:40 2.75 6:00 8:40

3/7/2007 2 19:00 21:00 2 1900 2100 2.3 2 19:00 21:00 2 19:00 21:00

3/8/2007 2.75 6:00 8:45 2.5 0600 0830 3.3 2.75 6:00 8:45 2.75 6:00 8:45

3/9/2007 2.25 0600 0800 2.25 0600 0800

4/6/2007 3 7:00 10:00 3 0700 1000 3.7 3 7:00 10:00 3 7:00 10:00

4/7/2007 3 7:00 10:00 3 0700 1000 3.7 3 7:00 10:00 3 7:00 10:00

4/7/2007 1 20:00 21:00 1 2000 2100 1.6 1 20:00 21:00 1 20:00 21:00

4/8/2007 3 7:00 10:00 3 0700 1000 3.7 3 7:00 10:00 3 7:00 10:00

4/9/2007 2 7:00 9:00 2 0700 0900 2.6 2 7:00 9:00 2 7:00 9:00
Updated March 10, 2010

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Table 4: Operational Data from Selected VA Companies Engaged in Distributed Generation

DATE NOVEC AOL DFT Dominion-SG Dominion-VMEA

Generic Profile, 

Any Run Day (option 1)

Generic Profile, Days 

with 2 or more data 

points (option 2)

Hrs Start 

Time

Stop 

Time Hrs

Start 

Time

Stop 

Time Hrs Hrs

Start 

Time

Stop 

Time Hrs

Start 

Time

Stop 

Time Hrs Start Time

Stop 

Time Hrs Start Time

Stop 

Time

4/10/2007 2 7:00 9:00 2 0700 0900 2.5 2 7:00 9:00 2 7:00 9:00

4/11/2007 1.5 7:00 8:20 2 0700 0900 1.7 2 0700 0900 2 0700 0900

4/25/2007 5 16:00 21:00 5 1600 2100 5.7 5 1600 2100 5 1600 2100

5/1/2007 5.5 16:00 21:35 5 1600 2100 5.5 5.5 16:00 21:35 5.5 16:00 21:35

5/2/2007 4 15:00 19:00 4 1500 1900 4.5 4 15:00 19:00 4 15:00 19:00

5/11/2007 3 15:00 18:00 3 1500 1800 3.5 3 15:00 18:00 3 15:00 18:00

5/25/2007 3 15:00 18:00 3 1500 1800 3.4 3 15:00 18:00 3 15:00 18:00

5/26/2007 3 15:00 18:00 3 1500 1800 3.5 3 15:00 18:00 3 15:00 18:00

5/27/2007 3 15:00 18:00 3.75 1500 1800 3.6 3.75 1500 1800 3.75 1500 1800

5/28/2007 3 15:00 18:00 3 1500 1800 3.3 3 15:00 18:00 3 15:00 18:00

5/29/2007 2 16:00 18:00 2 1600 1800 2.5 2 16:00 18:00 2 16:00 18:00

5/30/2007 2 16:00 18:00 2 1600 1800 2.4 2 16:00 18:00 2 16:00 18:00

5/31/2007 5 14:00 19:00 4 1400 1800 4.4 5 14:00 19:00 5 14:00 19:00

6/1/2007 2 16:00 18:00 2 1600 1800 2.4 2 16:00 18:00 2 16:00 18:00

6/8/2007 5 15:00 20:00 3 1500 1800 3.5 7 1400 2100 9 1200 2100 5 15:00 20:00 5 15:00 20:00

6/13/2007 3.75 1630 2015 3.75 1630 2015

6/18/2007 4 16:00 20:00 2 1600 1800 2.4 7 1400 2100 9 1200 2100 9 1200 2100 9 1200 2100

6/19/2007 5 15:00 20:00 3 1500 1800 3.4 7 1400 2100 9 1200 2100 9 1200 2100 9 1200 2100

6/26/2007 4 15:00 19:00 2 1500 1700 2.5 7 1400 2100 8 1200 2000 8 1200 2000 8 1200 2000

6/27/2007 5 15:00 20:00 3 1500 1800 3.5 7 1400 2100 8 1200 2000 8 1200 2000 8 1200 2000

6/28/2007 1 15:00 16:00 1 1500 1600 1.5 7 1400 2100 7 1300 2000 7 1300 2000 7 1300 2000

7/8/2007 4 16:00 20:00 2 1600 1800 2.4 4 16:00 20:00 4 16:00 20:00

7/9/2007 6 14:00 20:00 3 1500 1800 3.5 7 1400 2100 8 1100 1900 8 1100 1900 8 1100 1900

7/10/2007 5 15:00 20:00 4 1500 1900 4.5 7 1400 2100 7 1300 2000 7 1400 2100 7 1400 2100

7/16/2007 7 1400 2100 7 1300 2000 7 1400 2100 7 1400 2100

7/17/2007 7 1400 2100 7 1400 2100

7/18/2007 8 1200 2000 8 1200 2000

7/19/2007 7 1400 2100 7 1400 2100
Updated March 10, 2010

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Table 4: Operational Data from Selected VA Companies Engaged in Distributed Generation

DATE NOVEC AOL DFT Dominion-SG Dominion-VMEA

Generic Profile, 

Any Run Day (option 1)

Generic Profile, Days 

with 2 or more data 

points (option 2)

Hrs Start 

Time

Stop 

Time Hrs

Start 

Time

Stop 

Time Hrs Hrs

Start 

Time

Stop 

Time Hrs

Start 

Time

Stop 

Time Hrs Start Time

Stop 

Time Hrs Start Time

Stop 

Time

7/29/2007 3.25 1600 1915 3.25 1600 1915

8/1/2007 5 15:00 20:00 4 1500 1900 4.7 7 1400 2100 7 1400 2100 7 1400 2100

8/2/2007 5 15:00 20:00 4 1500 1900 4.5 7 1400 2100 7 1400 2100 7 1400 2100

8/3/2007 5 15:00 20:00 4 1500 1900 4.5 7 1400 2100 8 1300 2100 8 1300 2100 8 1300 2100

8/4/2007 5 15:00 20:00 4 1500 1900 4.5 5 15:00 20:00 5 15:00 20:00

8/6/2007 5 15:00 20:00 4 1500 1900 4.5 7 1400 2100 8 1300 2100 8 1300 2100 8 1300 2100

8/7/2007 5 15:00 20:00 4 1500 1900 4.5 7 1400 2100 7 1400 2100 7 1400 2100

8/8/2007 7 14:00 20:00 5 1400 1900 5.5 7 1400 2100 12 1100 2300 12 1100 2300 12 1100 2300

8/9/2007 1.5 14:00 15:30 2 1400 1600 2.8 7 1400 2100 9 1200 2100 9 1200 2100 9 1200 2100

8/15/2007 9 1200 2100 9 1200 2100

8/16/2007 10 1200 2200 10 1200 2200

8/25/2007 3.25 16:40 20:00 3.25 16:40 20:00

8/29/2007 11 1100 2200 11 1100 2200

8/30/2007 9 1200 2100 9 1200 2100

9/3/2007 3 16:00 19:00 2 1600 1800 3 16:00 19:00 3 16:00 19:00

9/4/2007 4 15:00 19:00 3 1500 1800 4 15:00 19:00 4 15:00 19:00

9/5/2007 4 15:00 19:00 3 1500 1800 4 15:00 19:00 4 15:00 19:00

9/6/2007 4 15:00 19:00 3 1500 1800 4 15:00 19:00 4 15:00 19:00

9/7/2007 4 15:00 19:00 3 1500 1800 4 15:00 19:00 4 15:00 19:00

9/8/2007 4 15:00 19:00 4 15:00 19:00

9/10/2007 4 15:00 19:00 3 1500 1800 9 1200 2100 9 1200 2100 9 1200 2100

9/10/2007 5 1600 2100 5 1600 2100

9/25/2007 9 1200 2100 9 1200 2100

9/26/2007 10 1100 2100 10 1100 2100

10/1/2007 6 15:00 21:00 6 1500 2100 6 15:00 21:00 6 15:00 21:00

10/2/2007 6 15:00 21:00 6 1500 2100 6 15:00 21:00 6 15:00 21:00

10/3/2007 6 15:00 21:00 6 1500 2100 6 15:00 21:00 6 15:00 21:00

10/4/2007 5 16:00 21:00 5 1600 2100 5 16:00 21:00 5 16:00 21:00
Updated March 10, 2010

Page 12

Table 4: Operational Data from Selected VA Companies Engaged in Distributed Generation

DATE NOVEC AOL DFT Dominion-SG Dominion-VMEA

Generic Profile, 

Any Run Day (option 1)

Generic Profile, Days 

with 2 or more data 

points (option 2)

Hrs Start 

Time

Stop 

Time Hrs

Start 

Time

Stop 

Time Hrs Hrs

Start 

Time

Stop 

Time Hrs

Start 

Time

Stop 

Time Hrs Start Time

Stop 

Time Hrs Start Time

Stop 

Time

10/6/2007 6 15:00 21:00 5 1500 2000 6 15:00 21:00 6 15:00 21:00

10/7/2007 6 15:00 21:00 5 1500 2000 6 15:00 21:00 6 15:00 21:00

10/8/2007 6 15:00 21:00 6 1500 2100 6 15:00 21:00 6 15:00 21:00

10/9/2007 6 15:00 21:00 6 1500 2100 6 15:00 21:00 6 15:00 21:00

11/2/2007 1 7:00 8:00 1 0700 0800 1 7:00 8:00 1 7:00 8:00

11/7/2007 2 7:00 9:00 2 0700 0900 2 7:00 9:00 2 7:00 9:00

11/8/2007 3 6:00 9:00 3 0600 0900 3 6:00 9:00 3 6:00 9:00

11/9/2007 2 6:00 8:00 2 0600 0800 2 6:00 8:00 2 6:00 8:00

11/16/2007 2 18:00 20:00 2 1800 2000 2 18:00 20:00 2 18:00 20:00

11/19/2007 2 6:00 8:00 2 0600 0800 2 6:00 8:00 2 6:00 8:00

11/19/2007 2 18:00 20:00 2 1800 2000 2 18:00 20:00 2 18:00 20:00

11/28/2007 3 6:00 9:00 2 0700 0900 3 6:00 9:00 3 6:00 9:00

11/28/2007 2 18:00 20:00 2 1800 2000 2 18:00 20:00 2 18:00 20:00

11/29/2007 1.75 7:00 8:45 1.5 0700 0830 1.75 7:00 8:45 1.75 7:00 8:45

11/29/2007 3 18:00 21:00 3 1800 2100 3 18:00 21:00 3 18:00 21:00

11/30/2007 2 7:00 9:00 2 0700 0900 2 7:00 9:00 2 7:00 9:00

11/30/2007 3 18:00 21:00 3 1800 2100 3 18:00 21:00 3 18:00 21:00

12/4/2007 3 18:00 21:00 3 1800 2100 3 18:00 21:00 3 18:00 21:00

12/5/2007 2 7:00 9:00 2 0700 0900 2 7:00 9:00 2 7:00 9:00

12/5/2007 3 17:00 20:00 3 1700 2000 3 17:00 20:00 3 17:00 20:00

12/6/2007 2 7:00 9:00 2 0700 900 2 7:00 9:00 2 7:00 9:00

12/6/2007 3 18:00 21:00 3 1800 2100 3 18:00 21:00 3 18:00 21:00

12/7/2007 2 7:00 9:00 2 0700 0900 5 1700 2200 5 1700 2200 5 1700 2200

12/7/2007 3 18:00 21:00 3 1800 2100 3 18:00 21:00 3 18:00 21:00

12/17/2007 1.25 7:00 8:15 1.5 0700 0830 1.25 7:00 8:15 1.25 7:00 8:15

12/17/2007 3 18:00 21:00 3 1800 2100 3 18:00 21:00 3 18:00 21:00

12/18/2007 2 7:00 9:00 2 0700 0900 2 7:00 9:00 2 7:00 9:00

12/19/2007 12 1000 2200 12 1000 2200
Updated March 10, 2010

Page 13

Table 4: Operational Data from Selected VA Companies Engaged in Distributed Generation

DATE NOVEC AOL DFT Dominion-SG Dominion-VMEA

Generic Profile, 

Any Run Day (option 1)

Generic Profile, Days 

with 2 or more data 

points (option 2)

Hrs Start 

Time

Stop 

Time Hrs

Start 

Time

Stop 

Time Hrs Hrs

Start 

Time

Stop 

Time Hrs

Start 

Time

Stop 

Time Hrs Start Time

Stop 

Time Hrs Start Time

Stop 

Time

12/20/2007 16 600 2200 16 600 2200

12/26/2007 3 1700 2000 3 1700 2000

Total 

Hours 314.0 281.0 186.6 141.0 234.0 513.5 381.0

Total 

Days 93 94 57 21 28 111 92
Updated March 10, 2010

Page 14

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

US Army - Fort 

Myer 71714 013 00009 13 13 1

COMBINED DIESEL 

GENERATOR 20300101 2.12 Y

2007

Pentagon 

Reservation 70030 013 00010 20 20 1

RDF 1-9 Cat. 3516B 

Diesel Gensets 20200102 4.25 Y

2007

Pentagon 

Reservation 70030 013 00010 21 21 1

Cummins QSK7B 

Diesel Genset 20200102 0.17 Y

2007 Fort AP Hill 40306 033 00017 4 4 1

28 DIESEL 

GENERATORS 39999992 1.16 Y

2007 Merillat - Culpeper40728 047 00032 1 1 1

Caterpillar G3412 

diesel generator 20200401 3.99 Y

2007

The Rochester 

Corporation 40369 047 00044 4 1 1

Caterpillar gen 725kW 

- diesel 20200102 29.38 Y

2007

Town of Culpeper 

/ Electric Power 

Plant 40927 047 00047 4 4 1

1275 hp-engine 

#7(FUEL OIL) 20100107 0.09 Y

2007

Wythe Park 

Power, LLC -

Petersburg 51007 053 00077 1 1 1

#1 Engine, liquid fuel 

thruput 20200102 7.72 Y

2007

Wythe Park 

Power, LLC -

Petersburg 51007 053 00077 1 2 1

#2 Engine, liquid fuel 

thruput 20200102 7.37 Y

2007

Wythe Park 

Power, LLC -

Petersburg 51007 053 00077 1 3 1

#3 Engine, liquid fuel 

thruput 20200102 4.89 Y

2007

US Army - Fort 

Belvoir 70550 059 00018 19 25 1

DCEETA*10 CAT. 

3516 GENSET 39999992 2.41 Y

2007

US Army - Fort 

Belvoir 70550 059 00018 19 25 2

DCEETA*4 

CAT.3516B GENSET 39999992 0.65 Y

2007

US Army - Fort 

Belvoir 70550 059 00018 26 26 3

B2444*Three Diesel 

Generators 20200401 5.49 Y

2007

US Army - Fort 

Belvoir 70550 059 00018 26 26 5

B2462*Four CAT.SR-4 

Genset 39999992 4.98 Y
Updated March 10, 2010

Page 15

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

US Army - Fort 

Belvoir 70550 059 00018 26 26 2

B2310*Three Diesel 

Generators 39999992 2.33 Y

2007

US Army - Fort 

Belvoir 70550 059 00018 26 26 1

B193*Cummins VT 

Diesel Gen. 20200401 0.17 Y

2007

US Army - Fort 

Belvoir 70550 059 00018 27 27 2

AMC*Gen.#2, Generac 

SD0750 39999992 0.22 Y

2007

US Army - Fort 

Belvoir 70550 059 00018 27 27 1

AMC*Gen.#1, Generac 

SD0750 39999992 0.19 Y

2007

US Army - Fort 

Belvoir 70550 059 00018 27 27 3

AMC*Gen.#3, Generac 

SD0600 39999992 0.12 Y

2007

US Army - Fort 

Belvoir 70550 059 00018 28 28 1

DTRA*Caterpillar SR4 Genset 39999992 1.25 Y

2007

US Army - Fort 

Belvoir 70550 059 00018 29 29 1

INSCOM*Two 

Cummins 750 Gen. 39999992 0.97 Y

2007

US Army - Fort 

Belvoir 70550 059 00018 30 30 1

PPS*12 Gen. 

Cummins, Cat., EMD 20200401 4.41 Y

2007

US Army - Fort 

Belvoir 70550 059 00018 45 45 1 Diesel Generators 20200401 0.01 Y

2007

US Army - Fort 

Belvoir 70550 059 00018 46 46 1 Diesel Generator 20200401 0.17 Y

2007

US Army - Fort 

Belvoir 70550 059 00018 47 47 1 Diesel Generator 20200401 0.54 Y

2007

US Army - Fort 

Belvoir 70550 059 00018 48 48 1

BLDG 2953 Generator 

(800 kW) 20200401 0.11 Y

2007

Inova Fairfax 

Hospital 70021 059 00022 4 4 1

Generators-Distillate 

Fuel 20200401 0.45 Y

2007

Inova Fairfax 

Hospital 70021 059 00022 20 20 1

EG7&8*Caterpillar 

3516B Genset 20300101 0.59 Y

2007

Washington Gas 

Light Company 70151 059 00056 1 1 1

1*CATERPILLER 

G399/GAS 20200202 15.27 Y

2007

Washington Gas 

Light Company 70151 059 00056 1 2 1

2*CATERPILLER 

G399/GAS 20200202 10.18 Y
Updated March 10, 2010

Page 16

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

Washington Gas 

Light Company 70151 059 00056 2 4 1

3*CATERPILLER 

G399/GAS 20200202 10.25 Y

2007

Washington Gas 

Light Company 70151 059 00056 2 5 1

4*CATERPILLER 

G399/GAS 20200202 9.57 Y

2007

Washington Gas 

Light Company 70151 059 00056 3 8 1

6*CATERPILLER 

G399/GAS 20200202 16.25 Y

2007

Washington Gas 

Light Company 70151 059 00056 3 7 1

5*CATERPILLER 

G399/GAS 20200202 9.52 Y

2007

Washington Gas 

Light Company 70151 059 00056 6 12 1

12*CUMMINS 

GENER./#2 OIL 20300101 0.02 Y

2007

Washington Gas 

Light Company 70151 059 00056 8 14 1

Volvo 500 RD Diesel 

Generator 20200401 0.27 Y

2007

George Mason 

University 70691 059 00277 10 10 1

24 SMALL EMER. 

GEN. (diesel) <447kW 

kw 20300101 1.78 Y

2007

George Mason 

University 70691 059 00277 11 11 1

2 LARGE EMER. 

GEN. (diesel) >447 kW 20300101 0.67 Y

2007

Science 

Applications 

International Corp. 71804 059 00402 1 1 1

1-4 CUMMINS GEN 

KTA2300GS 20200401 0.44 Y

2007

Science 

Applications 

International Corp. 71804 059 00402 2 2 1

6-8 WAKESHA GEN 

VHP667ODS 20200401 0.67 Y

2007

ExxonMobil 

Global Services 

Company 71847 059 00413 2 2 1 Generators G1-G4 750 20200102 4.93 Y

2007

ExxonMobil 

Global Services 

Company 71847 059 00413 3 3 1

Generators GC1 - GC2 

1100 20200102 2.91 Y

2007

Bush Center for 

Intelligence (CIA) 71757 059 00421 7 7 1

7 ALLISON 

TVRBINES/#2 OIL 20200101 18.93 Y

2007

Bush Center for 

Intelligence (CIA) 71757 059 00421 8 8 1

EMERG.DIESEL 

ENG.GENERATR 20200102 0.02 Y
Updated March 10, 2010

Page 17

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

National 

Reconnaissance 

Office 71988 059 00585 1 1 1

GS1-

5*CATERPILLAR 

3516 20200401 4.73 Y

2007 CRP 12100 SVD 72296 059 00733 1 1 1

#1-4 Caterpillar 3516B 

Generators rated at 

2200 kW 20200102 3.52 Y

2007

Dulles Discovery -

Phase 1 73340 059 73340 1 1 1 Engine Generator A 39999992 3.14 Y

2007

Dulles Discovery -

Phase 1 73340 059 73340 2 2 1 Engine Generator B 39999992 2.92 Y

2007

Dulles Discovery -

Phase 1 73340 059 73340 3 3 1 Engine Generator C 39999992 2.81 Y

2007

Dulles Discovery -

Phase 1 73340 059 73340 4 4 1 Engine Generator D 39999992 2.43 Y

2007

Naval Support 

Facility 40307 099 00001 1 1 1

3- 2500 KW Diesel 

Generators 20200401 14.94 Y

2007

Naval Support 

Facility 40307 099 00001 9 5 1

(32) DIESEL GEN UP 

TO 448 KW 20300101 1.91 Y

2007

Naval Support 

Facility 40307 099 00001 10 10 1

(3) DIESEL GEN > 

448 KW 20200401 4.35 Y

2007

Naval Support 

Facility 40307 099 00001 11 11 2

3B-NO 2 OIL 

GENERATORS (6) 20200401 5.42 Y

2007

America Online 

Incorporated 72346 107 00134 1 1 1

DIESL CAT#3516 

EMRG GEN w/o 

Selective Reduction 

Systems 20200102 0.92 Y

2007

America Online 

Incorporated 72346 107 00134 4 4 1

8 SMALL DIESL 

EMERG GEN 20200102 1.77 Y

2007

America Online 

Incorporated 72346 107 00134 5 5 1

7 DIESL CAT#3516 

EMRG GEN w/ 

Selective Reduction 

Systems 20200102 0.61 Y

2007 MCI-Verizon 72367 107 00141 1 1 1

1-8 CAT 

GENERATORS/#2

OIL 20300101 5.51 Y
Updated March 10, 2010

Page 18

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007 MCI-Verizon 72367 107 00141 4 4 1

1-8 Onan 

generators/#2oil 20300101 13.85 Y

2007

Conectiv 

Delmarva 

Generation Inc -

Bayview 40602 131 00008 1 1 1 1 E M D 16-645-ED4 20100102 23.39 Y

2007

Conectiv 

Delmarva 

Generation Inc -

Bayview 40602 131 00008 2 2 1 2 E M D 16-645-ED4 20100102 20.68 Y

2007

Conectiv 

Delmarva 

Generation Inc -

Bayview 40602 131 00008 3 3 1 3 E M D 16-645-ED4 20100102 22.51 Y

2007

Conectiv

Delmarva 

Generation Inc -

Bayview 40602 131 00008 4 4 1 4 E M D 16-645-ED4 20100102 16.28 Y

2007

Conectiv 

Delmarva 

Generation Inc -

Bayview 40602 131 00008 5 5 1 5 E M D 16-645-ED4 20100102 21.28 Y

2007

Conectiv 

Delmarva 

Generation Inc -

Bayview 40602 131 00008 6 6 1 6 E M D 16-645-ED4 20100102 21.73 Y

2007

US Marine Corps -

Quantico 70267 153 00010 23 23 1

(Bldg 3300) Caterpillar 

3512 Diesel-fired 

Emergency Gen 39999992 1.69 Y

2007

US Marine Corps -

Quantico 70267 153 00010 34 58 1

Fueling Station CNG

Compressor Engine -

NG fired 40600401 0.08 Y

2007

US Marine Corps -

Quantico 70267 153 00010 35 59 1

Hochmuth Hall 

Building 2033 -

Emergency Generator 3 39999992 0.63 Y
Updated March 10, 2010

Page 19

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

US Marine Corps -

Quantico 70267 153 00010 36 60 1

Diamond Hall Blg 3098 

Emergency Generator 

750 hp 39999992 0.10 Y

2007

US Marine Corps -

Quantico 70267 153 00010 37 61 1

Newlin Hall Building 

3255 Emergency 

Generator #1 39999992 0.14 Y

2007

US Marine Corps -

Quantico 70267 153 00010 38 62 1

Newlin Hall Building 

3255 Emergency 

Generator #2 39999992 0.11 Y

2007

US Marine Corps -

Quantico 70267 153 00010 39 63 1

Newlin Hall Building 

3255 Emergency 

Generator #3 39999992 1.07 Y

2007

US Marine Corps -

Quantico 70267 153 00010 40 64 1

NOC - 1 Network 

Operations Center 

Emergency Generator 39999992 1.10 Y

2007

US Marine Corps -

Quantico 70267 153 00010 41 65 1

Marsh Center Building 

3280 Emergency 

Generator 39999992 0.70 Y

2007

US Marine Corps -

Quantico 70267 153 00010 42 66 1

Water Plant Building 

1303 Emergency 

Generator 39999992 1.74 Y

2007

US Marine Corps -

Quantico 70267 153 00010 43 67 1

Sewage Plant Building 

660 Emergency 

Generator 39999992 0.84 Y

2007

US Marine Corps -

Quantico 70267 153 00010 44 68 1

EG #2 Sewage Plant 

Building 660 39999992 0.53 Y

2007

US Marine Corps -

Quantico 70267 153 00010 46 70 1

Whiteside Hanger 

Emergency Generator 39999992 0.45 Y

2007

US Marine Corps -

Quantico 70267 153 00010 47 71 1

Greenside Hanger 

Emergency Generator 39999992 0.34 Y

2007

US Marine Corps -

Quantico 70267 153 00010 48 72 1

Emer. Gen. - Harry Lee 

Hall Bldg. #17 39999992 0.03 Y

2007

Lockheed Martin 

Manassas 70261 153 00021 11 11 1

(EGEN 001) Cummins 

NTA400 Emergency 

Generator, 230 kW 

(400 hp engine) 20200102 0.05 Y
Updated March 10, 2010

Page 20

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

Lockheed Martin 

Manassas 70261 153 00021 12 12 1

(EGEN 101) Katolight 

Emergency Generator, 

gas-fired, 60 kW (80.5 

hp engine) 20200202 0.01 Y

2007

Lockheed Martin 

Manassas 70261 153 00021 13 13 1

(EGEN 105) Cummins 

NTA355 no.2 oil-fired, 

emergency generator, 

200 kW (355 hp 

engine) 20200102 0.04 Y

2007

Lockheed Martin 

Manassas 70261 153 00021 14 14 1

(EGEN 106) Cummins 

VT1710, no. 2 oil-fired 

emergency generator, 

450 kW (685 hp 

engine) 20200401 0.05 Y

2007

Lockheed Martin 

Manassas 70261 153 00021 15 15 1

(EGEN 110-1) 

Cummins NTA355 

no.2 oil-fired, 

emergency generator, 

200 kW (355 hp 20200102 0.04 Y

2007

Lockheed Martin 

Manassas 70261 153 00021 16 16 1

(EGEN 110-2) 

Caterpillar 3412, no. 2 

oil-fired emergency 

generator, 500 kW (747 

hp engine) 20200401 0.06 Y

2007

Lockheed Martin 

Manassas 70261 153 00021 17 17 1

(EGEN 120) Caterpillar 

3306PC, no. 2 oil-fired, 

emergency generator 

155 kW (275 hp 

engine) 20200102 0.04 Y

2007

Lockheed Martin 

Manassas 70261 153 00021 18 18 1

(EGEN 200) Caterpillar 

3412, no.2 oil-fired, 

emergency generator 

500 kW (747 hp 

engine) 20200401 0.06 Y
Updated March 10, 2010

Page 21

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

Lockheed Martin 

Manassas 70261 153 00021 20 20 1

(EGEN400) Cummins 

HS240, no.2 oil-fired, 

emergency generator, 

125 kW (240 hp 

engine) 20200401 0.02 Y

2007

America Online 

Inc 72368 153 00143 1 1 1

4 CAT Generators 

without SCR systems & 

3 Rotary power systems20200102 1.79 Y

2007

America Online 

Inc 72368 153 00143 3 3 2

6 Cat 3516B generators 

with Selective Catalytic 

Reduction Systems -

Uncontrolled 20200102 4.77 Y

2007

America Online 

Inc 72368 153 00143 3 3 1

6 Cat 3516B generators 

with Selective Catalytic 

Reduction Systems -

Controlled 20200102 1.43 Y

2007

Dupont Fabros 

Technology -

Porpoise Ventures 

LLC 73180 153 00812 1 1 2

Generators SCR (Ref 

#1, 2, 5, 6, 9, 10) When 

NOx reduction is less 

than 90% 39999992 9.52 Y

2007

Dupont Fabros 

Technology -

Porpoise Ventures 

LLC 73180 153 00812 1 1 5

Non-SCR Units (Ref# 

EG3, EG4, EG7, EG8, 

RPU 1, RPU 2, RPU3) 

51-75 % Load 39999992 3.26 Y

2007

Dupont Fabros 

Technology -

Porpoise Ventures 

LLC 73180 153 00812 1 1 1

Generators SCR (Ref # 

1, 2, 5, 6, 9, 10) When 

NOx is 90% reduced 39999992 2.00 Y

2007

Dupont Fabros 

Technology -

Porpoise Ventures 

LLC 73180 153 00812 1 1 4

Non-SCR Units (Ref# 

EG3, EG4, EG7, EG8, 

RPU 1, RPU 2, RPU3) 

26-50 % Load 39999992 1.46 Y

2007

Dupont Fabros 

Technology -

Porpoise Ventures 

LLC 73180 153 00812 1 1 3

Non-SCR Units (Ref# 

EG3, EG4, EG7, EG8, 

RPU 1, RPU 2, RPU3) 39999992 0.19 Y
Updated March 10, 2010

Page 22

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

Dupont Fabros 

Technology -

Porpoise Ventures 

LLC 73180 153 00812 1 1 6

Non-SCR Units (Ref# 

EG3, EG4, EG7, EG8, 

RPU 1, RPU 2, RPU3) 

76-100% Load 39999992 0.12 Y

2007 FBI Academy 40368 179 00020 7 7 1

(6) 1500 kW Emer. 

Gen-N6G1 thru N6G6 20200401 1.34 Y

2007 FBI Academy 40368 179 00020 8 8 1

(2) 1500 kW Emer gen19G1 & 19G2 20200401 1.23 Y

2007 FBI Academy 40368 179 00020 9 9 1

(1) 800 kW Emer Gen9-C-G1 20200401 0.29 Y

2007 FBI Academy 40368 179 00020 10 10 1

(1) 300 kW Emer GenN7-G1 20300101 0.03 Y

2007 FBI Academy 40368 179 00020 11 11 1

(1) 425 kW Emer Gen16G1 20200401 0.08 Y

2007 FBI Academy 40368 179 00020 12 12 1

(7) Gen, dieselELSG1&2, 10G1, 

12G1, 6G1, HRLSG1, 

17G1 20300101 0.82 Y

2007

City of 

Manassas/VMEA 71977 683 00090 1 1 1

V3-10 CAT 3516TAENGINES 39999991 49.59 Y

2007

City of 

Manassas/VMEA 71977 683 00090 2 2 1

V1-2, C7-10 Cat 

3516TA Engines 39999991 21.35 Y

2007

City of 

Manassas/VMEA 71977 683 00090 3 3 1

V11-12 CAT3516TAENG 39999991 7.01 Y

2007

Manassas City -

Church Street 

Power Generation 

Fac 72004 683 00094 1 1 1

1#DETROIT 

DIESEL9163-7305 39999991 2.54 Y

2007

Manassas City -

Church Street 

Power Generation 

Fac 72004 683 00094 2 2 1

2*DETROIT 

DIESEL9163-7305 39999991 2.26 Y
Updated March 10, 2010

Page 23

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

Manassas City -

Church Street 

Power Generation 

Fac 72004 683 00094 3 3 1

3*CATERPILLAR 

3512 DITA 6 39999991 2.41 Y

2007

Manassas City -

Church Street 

Power Generation 

Fac 72004 683 00094 4 4 1

4*DETROIT 

DIESEL9163-7305 39999991 2.11 Y

2007

Manassas City -

Church Street 

Power Generation 

Fac 72004 683 00094 5 5 1

5*CATERPILLAR 

3516 DITA 39999991 4.07 Y

2007

Manassas City -

Church Street 

Power Generation 

Fac 72004 683 00094 6 6 1

6*CATERPILLAR 

3516 DITA 39999991 4.06 Y

2007

Micron 

Technology 

Incorporated 72299 683 00131 4 4 1

EG -1 Emergency 

generator - CAT 3508 

600 kW 39999992 0.07 Y

2007

Micron 

Technology 

Incorporated 72299 683 00131 5 5 1

EG2 Emergency 

Generator - CAT 3508 

720 kW 39999992 0.24 Y

2007

Micron

Technology 

Incorporated 72299 683 00131 6 6 1

EG-3 Emergency 

Generator CAT 3412 

470kW 39999992 0.03 Y

2007

Micron 

Technology 

Incorporated 72299 683 00131 7 7 1

EG-4 Emergency 

Generator CAT 3406DI 

250 kW 519 bhp 39999992 0.03 Y

2007

Micron 

Technology 

Incorporated 72299 683 00131 8 8 1

EG5, EG6, EG7 

Emergency Generators 

CAT 3512, 1250 kW, 

1786 bhp 39999992 0.41 Y

2007

Micron 

Technology 

Incorporated 72299 683 00131 9 9 1

EG9 Emergency 

Generators CAT 3512, 

1250 kW, 1786 bhp 39999992 0.10 Y
Updated March 10, 2010

Page 24

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

Micron 

Technology 

Incorporated 72299 683 00131 10 10 1

EG8, CAT 3516, 

1040kW, Nat. Gas fired 20100202 0.05 Y

2007

Manassas City of -

Central Park Plant 72327 683 00134 1 1 1

4 Caterpillar Gensets -

3516B 39999991 7.32 Y

2007

Manassas City of -

Central Park Plant 72327 683 00134 2 2 1

1 R.R. AVON 1533 

TURBINE 39999991 0.62 Y

2007

Wythe Park 

Power, LLC 

Richmond Plant 51055 760 00405 1 1 2

Dual Fuel emissions for 

all three (3) KTA-50 

engines 20100201 5.00 Y

2007

Wythe Park 

Power, LLC 

Richmond Plant 51055 760 00405 1 1 1

Single Fuel emissions 

for all three (3) KTA50 engines 20100201 0.04 Y

2007

A and N Electric 

Cooperative -

Tangier Island 40564 001 00012 1 1 1 1-4 Generators/#2 oil 20100102 1.63 N

2007

Old Dominion 

Electric 

Cooperative - Unit 

7 61410 001 61410 1 1 1

Diesel Generators 

(UNIT 7) 20200401 1.63 N

2007

Old Dominion 

Electric 

Cooperative - Unit 

8 61411 001 61411 1 1 1

Diesel Generator 

(UNIT 8) 20200401 1.33 N

2007

Old Dominion 

Electric 

Cooperative -

UNIT 5 61412 001 61412 1 1 1

Diesel Generator 

(UNIT 5) 20200401 1.61 N

2007

Old Dominion 

Electric 

Cooperative - Unit 

6 61413 001 61413 1 1 1

Diesel Generator 

(UNIT 6) 20200401 1.50 N

2007

Old Dominion 

Electric 

Cooperative -

UNIT 9 61414 001 61414 1 1 1

Diesel Generator (Unit 

9) 20200401 1.47 N
Updated March 10, 2010

Page 25

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

Old Dominion 

Electric 

Cooperative -

UNIT 10 61415 001 61415 1 1 1

Diesel Generator (Unit 

10) 20200401 1.72 N

2007

Pointon 

Substation-Amelia 

County-Unit 4 51934 007 51934 1 1 1

Caterpillar diesel 

engine 39999992 1.08 N

2007

MWAA - Ronald 

Reagan National 

Airport 70005 013 00015 15 15 1 EM.GEN.&PUMP 20300101 1.60 N

2007

Virginia Hospital 

Center - Arlington 70226 013 00163 2 2 1

G1-8*DIESEL 

GENERATORS 20200102 1.51 N

2007

Verizon Virginia 

Incorporated -

North Irving St 73302 013 00812 1 2 2

Spectrum Gen Set -

1600|DS60 39999992 0.26 N

2007

Verizon Virginia 

Incorporated -

North Irving St 73302 013 00812 1 1 1

Spectrum Gen Set -

1600|DS60 39999992 0.27 N

2007

Dominion - Bath 

County Power 

Station 80834 017 00003 1 1 1

1 EMERG DZL GEN 

9163-7305 20100102 0.22 N

2007

Dominion - Bath 

County Power 

Station 80834 017 00003 2 2 1

2 EMERG DZL GEN 

9163-7305 20100102 0.17 N

2007

Dominion - Bath 

County Power 

Station 80834 017 00003 3 3 1

3 EMERG DZL GEN 

1043-7305 20100102 0.03 N

2007

Culpeper Regional 

Hospital 40265 047 00017 1 1 1

Caterpillar Generator 

Model 3412 20300101 0.66 N

2007

Culpeper Regional 

Hospital 40265 047 00017 1 1 2

Kohler Generator 

Model 230RO7271 20300101 0.15 N

2007

US ArmyWarrenton 

Training Center 

Station D 40901 047 00042 1 1 1

(4) Diesel Emergency 

Generators 20200102 0.60 N
Updated March 10, 2010

Page 26

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

Culpeper 

Wastewater 

Treatment Plant 41019 047 00055 1 1 1

750 kW Emergency 

Generator 20300101 0.13 N

2007

Culpeper 

Wastewater 

Treatment Plant 41019 047 00055 2 2 1

1825kW Emergency 

Generator 20300101 1.17 N

2007

Town of Culpeper 

Light & Power 41024 047 00057 1 1 1

#1 Cat 3516B Diesel 

Eng 20200401 3.22 N

2007

Town of Culpeper 

Light & Power 41024 047 00057 2 2 1

#2 Cat 3516B Diesel 

Eng 20200401 3.22 N

2007

Town of Culpeper 

Light & Power 41024 047 00057 3 3 1

#3 Cat 3516B Diesel 

Eng 20200401 2.77 N

2007

National Audio 

Visual 

Conservation 

Center 41039 047 00061 3 3 2 G1 Genset Diesel Fuel 20200401 N

2007

National Audio 

Visual 

Conservation 

Center 41039 047 00061 3 3 1

G1 Genset Hours 

Operated 39999992 0.28 N

2007

National Audio 

Visual 

Conservation 

Center 41039 047 00061 4 4 2 G2 Genset Diesel Fuel 20200401 N

2007

National Audio 

Visual 

Conservation 

Center 41039 047 00061 4 4 1

G2 Genset Hours 

Operated 39999992 0.23 N

2007

National Audio 

Visual 

Conservation 

Center 41039 047 00061 5 5 2 G3 Genset Diesel Fuel 20200401 N

2007

National Audio 

Visual 

Conservation 

Center 41039 047 00061 5 5 1

G3 Genset Hours 

Operated 39999992 0.24 N
Updated March 10, 2010

Page 27

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

National Audio 

Visual 

Conservation 

Center 41039 047 00061 6 6 2 G4 Genset Diesel Fuel 20200401 N

2007

National Audio 

Visual 

Conservation 

Center 41039 047 00061 6 6 1

G4 Genset Hours 

Operated 39999992 0.24 N

2007

US Geological 

Survey 71723 059 00343 8 8 2

G4*Caterpillar 3306 

genset/oil 39999992 0.08 N

2007

US Geological 

Survey 71723 059 00343 8 8 1

G2, G3*Cummins AP800 gen./oil 39999992 0.35 N

2007

US Geological 

Survey 71723 059 00343 9 9 1

G1*Cummins GTA28 

genset/gas 39999992 0.11 N

2007

US Geological 

Survey 71723 059 00343 9 9 2

G5*Cummins GTA-50 

genset/gas 39999992 0.37 N

2007

GANNETT 

OFFSETSPRINGFIELD 71883 059 00439 3 31 1

G1 KATOLIGHT 

D2000F Y4 DIESEL 

GENSET 20300101 0.30 N

2007

Reston Hospital 

Center 71918 059 00558 2 40 1 Two Emerg. Generators20200102 0.38 N

2007

CENTRAL 

INTELLIGENCE 

AGENCY 72289 059 00729 1 1 1

1*CATERPILLAR 

200KW DIEGN 20200102 0.05 N

2007

CENTRAL 

INTELLIGENCE 

AGENCY 72291 059 00731 1 1 1

1*CATERPILLAR 

900KW DIEGN 20200102 0.12 N

2007 Fannie Mae 72292 059 00732 1 1 1

1*CATERPILLER 

1500KW DGEN 20200102 1.51 N

2007 Fannie Mae 72292 059 00732 2 2 1

2*CATERPILLAR 

1500KW DGEN 20200102 1.51 N

2007 Fannie Mae 72292 059 00732 3 3 1

3*CATERPILLAR 

1500KW DGEN 20200102 1.21 N

2007 Fannie Mae 72292 059 00732 4 4 1

4*CATERPILLAR 

1500KW DGEN 20200102 0.60 N
Updated March 10, 2010

Page 28

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007 Fannie Mae 72292 059 00732 5 5 1

5*CATERPILLAR 

500KW DGEN 20300101 0.04 N

2007 Quest Diagnostics 72342 059 00745 2 2 1

1-2*CATPLER GEN / 

DIESEL 20200102 0.39 N

2007

Washington 

International 

Teleport 72349 059 00749 1 1 1

A,B*ONAN450 

DFECGENERATOR 20300101 0.68 N

2007

Washington 

International 

Teleport 72349 059 00749 2 2 1

3,4*ONAN250 

DFBE/CAT.SR4F 20300101 0.47 N

2007

Inova Fair Oaks 

Hospital 72353 059 00753 2 2 1

1-2 Magna Diesel 

Generators 20200102 0.30 N

2007

Inova Fair Oaks 

Hospital 72353 059 00753 4 4 1

3* Kohler Emergency 

Diesel Gen. 20200102 0.13 N

2007

Mainrock II 

Chantilly LLC 72375 059 00761 1 1 1 Generator 1 39999992 0.06 N

2007

Mainrock II 

Chantilly LLC 72375 059 00761 2 2 1 Generator 2 39999992 0.06 N

2007

Mainrock II 

Chantilly LLC 72375 059 00761 3 8 1 Generator 3 39999992 0.06 N

2007

Freddi Mac 

Corporation 73105 059 00763 1 1 1

4 diesl engine gen sets 

2000 KW 39999992 0.90 N

2007

Lemur Properties 

Limited Liability 

Corporation 73162 059 00817 1 01 1

1-18 Caterpillar 3516B 

Dsl-Gen. 20200102 2.33 N

2007

Time Warner 

Cable 73170 059 00819 1 1 1

1-2*Caterpillar model 

3508B gen 39999992 1.21 N

2007

Time Warner 

Cable 73170 059 00819 2 2 1

1-2*Caterpillar model 

3508B gen 39999992 1.15 N

2007

National Air & 

Space Museum 73220 059 00829 4 4 1

900 kW Kohler 

Emergency Generator 39999992 0.44 N

2007

National Air & 

Space Museum 73220 059 00829 5 5 1

400 kW Kohler 

Emergency Generator 39999992 0.20 N
Updated March 10, 2010

Page 29

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

Gannett Satellite 

Information 

Network 

Incorporated 73230 059 00832 1 1 1

CAT 3508B Engine 

Generator #1 39999992 0.01 N

2007

Gannett Satellite 

Information 

Network 

Incorporated 73230 059 00832 2 2 1

CAT 3508B Engine 

Generator #2 39999992 0.01 N

2007

Gannett Satellite

Information 

Network 

Incorporated 73230 059 00832 3 3 1

CAT 3508B Engine -

Generator #3 39999992 0.01 N

2007

Gannett Satellite

Information 

Network 

Incorporated 73230 059 00832 4 4 1

CAT 3508B Engine -

Generator #4 39999992 0.01 N

2007

Unisys 

Corporation 73279 059 00840 1 1 1

Cummins generator sets 

(ref. 1 & 2) 20100102 0.29 N

2007 UOSA - Cub Run 73282 059 00841 1 1 1

Kohler Diesel Genset 

(GEN 1) 39999992 0.24 N

2007 UOSA - Cub Run 73282 059 00841 2 2 1

Kohler Diesel Genset 

(GEN 2) 39999992 0.21 N

2007

Nextel 

Communications 

of the Mid 

Atlantic, Inc. 73287 059 00842 1 1 1 Diesel engine exhaust 39999992 0.28 N

2007

Nextel 

Communications 

of the Mid 

Atlantic, Inc. 73288 059 00843 1 1 1

Diesel engine/generator 

exhaust 39999992 0.22 N

2007

Nextel 

Communications 

of the Mid 

Atlantic, Inc. 73289 059 00844 1 1 1

Diesel engine/generator 

exhaust stack 39999992 0.20 N
Updated March 10, 2010

Page 30

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

Verizon Virginia 

Incorporated -

Moore Road 73303 059 00849 1 1 1

Diesel Driven Engine 

1700 hp 39999992 0.37 N

2007

Nextel NOC MSO 

Tech Lab PKT 

Data 73342 059 00864 1 1 1

Onan Gen - DFED/K 

5005243A 20100102 0.38 N

2007

Nextel NOC MSO 

Tech Lab PKT 

Data 73342 059 00864 1 4 1

Onan Gen - DFED/K 

404657SE 20100102 0.38 N

2007

Nextel NOC MSO 

Tech Lab PKT 

Data 73342 059 00864 1 2 1

Onan Gen - DFFD1715 20100102 0.38 N

2007

Nextel NOC MSO 

Tech Lab PKT 

Data 73342 059 00864 1 3 1

Onan Gen - DFD3387771 20100102 0.38 N

2007

Nextel NOC MSO 

Tech Lab PKT 

Data 73342 059 00864 1 5 1 Kohler Generator 20100102 0.27 N

2007 Clearwire 73343 059 00865 1 1 1 Caterpillar Generator 20100102 0.25 N

2007

Nextel National 

Headquarters 73344 059 00866 1 1 1 Caterpillar Generator 20100102 0.58 N

2007 Mitre Corporation 73345 059 00867 2 5 1

diesel fired generator 

(G1) 39999992 0.46 N

2007 Mitre Corporation 73345 059 00867 3 6 1

diesel fired generator 

(G2) 39999992 0.12 N

2007 Mitre Corporation 73345 059 00867 4 7 1

diesel fired generator 

(G3) 39999992 0.39 N

2007 Mitre Corporation 73345 059 00867 5 8 1

diesel fired generator 

(G4) 39999992 0.09 N

2007 Mitre Corporation 73345 059 00867 6 9 1

diesel fired generator 

(G5) 39999992 0.41 N

2007 Mitre Corporation 73345 059 00867 7 10 1

diesel fired generator 

(G6) 39999992 0.16 N
Updated March 10, 2010

Page 31

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

Enersol 

Technologies 

Incorporated 72359 059 72359 2 21 3

DIESEL GEN. 

KILOWATT-HRS 39999991 0.25 N

2007

Enersol 

Technologies 

Incorporated 72359 059 72359 2 21 2

DIESEL 

GENERATORSHOURS 39999992 0.51 N

2007

Sprint United 

Management 

Company 73515 059 73515 1 1 1

Cat 3512 diesel 

generator 20100102 0.63 N

2007

Sprint United 

Management 

Company 73515 059 73515 2 2 1

Cat 3512 diesel 

generator 20100102 0.63 N

2007

Sprint United 

Management 

Company 73515 059 73515 3 3 1

Cat 3512 diesel 

generator 20100102 0.63 N

2007

Sprint United 

Management 

Company 73515 059 73515 4 4 1

Cat 3512 diesel 

generator 20100102 0.63 N

2007

Sprint United 

Management 

Company 73515 059 73515 5 5 1

Cat 3512 diesel 

generator 20100102 0.14 N

2007

Sprint United 

Management 

Company 73515 059 73515 6 6 1

Cat 3512 diesel 

generator 20100102 0.29 N

2007

Sprint United 

Management 

Company 73515 059 73515 7 7 1

Cat 3516 B diesel 

generator 20100102 0.56 N

2007

Sprint United 

Management 

Company 73515 059 73515 8 8 1

Cummins DQKAB -

2919 BHP 20100102 0.05 N

2007

U. S. ArmyWarrenton 

Training Station A 40384 061 00022 2 2 2

(3) Diesel Emergency 

Generators 20200102 2.02 N

2007

Warrenton 

Training Center 

Station C 40900 061 00055 1 1 1

(2) Diesel Emergency 

Generators 20200102 0.10 N
Updated March 10, 2010

Page 32

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

Warrenton 

Training Station B 40902 061 00056 1 1 1

(19) diesel generators 

<400 kW ea 20200102 0.33 N

2007

Warrenton 

Training Station B 40902 061 00056 3 3 1

(10) Cat 3516B Diesel 

Generators 20200401 4.97 N

2007

Potomac 

Consolidated 

Tracon (FAA) 41047 061 00068 1 1 1 Engine Generator #1 39999992 0.24 N

2007

Potomac 

Consolidated 

Tracon (FAA) 41047 061 00068 2 2 1 Engine Generator #2 39999992 0.31 N

2007

Potomac 

Consolidated 

Tracon (FAA) 41047 061 00068 3 3 1 Engine Generator #3 39999992 0.37 N

2007

Potomac 

Consolidated 

Tracon (FAA) 41047 061 00068 4 4 1 Engine Generator #4 39999992 0.32 N

2007 Air BP 71734 107 00064 7 7 1

FF-EG1 Caterpillar 

diesel generator 39999992 0.27 N

2007

MWAA -

Washington Dulles 

International 

Airport 70003 107 00074 16 16 1

ALL OTHER DIESEL 

GENRATRS 20200102 0.02 N

2007

Dominion -

Loudoun 

Compressor 

Station 71809 107 00075 1 2 2

Caterpillar Model 

G3616 20200202 0.16 N

2007

Dominion -

Loudoun

Compressor 

Station 71809 107 00075 1 1 1

Caterpillar Model 

G3616 Compressor 

Engines 20200202 0.14 N

2007

Dominion -

Loudoun 

Compressor 

Station 71809 107 00075 2 3 1

Internal combustion 

compressor engine 20200202 0.61 N
Updated March 10, 2010

Page 33

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

Town of 

Leesburg/Water 

Poll Control Div 72260 107 00124 2 2 1

CATERPILLAR 3512 

GENSET (G1) 20200102 0.30 N

2007

Town of 

Leesburg/Water 

Poll Control Div 72260 107 00124 3 3 1

CUMMINS 

1500DFMB GENSET 

(G2) 20200102 0.54 N

2007

Iridium Satellite, 

L.L.C 72302 107 00128 1 1 1

Emerg. Generator, Cat. 

3516TA 20300101 0.51 N

2007

Inova Loudoun 

Hospital 72307 107 00130 3 21 1

E1,2,3*CATERPILLAR 

3412 20200102 0.11 N

2007

TOWN OF 

LEESBURGWATER SUPPLY 

DIVISION 72328 107 00133 1 1 1

1 Caterpillar 1000 KW 

GEN.3512 20300101 0.30 N

2007

TOWN OF 

LEESBURGWATER SUPPLY 

DIVISION 72328 107 00133 3 3 1

1 Caterpillar 1000 KW 

GEN.3512 20300101 0.18 N

2007

NTTA 

Communications 72376 107 00144 1 1 1

Diesel engine exhaust 

EGU 1 39999992 0.67 N

2007

NTTA 

Communications 72376 107 00144 2 2 1

Diesel engine exhaust 

(EGU2) 39999992 0.15 N

2007

NTTA 

Communications 72376 107 00144 3 3 1

Diesel engine exhaust 

(EGU3) 39999992 0.69 N

2007

NTTA 

Communications 72376 107 00144 4 4 1

Diesel engine exhaust 

(EGU 5) 39999992 0.34 N

2007

NTTA 

Communications 72376 107 00144 5 5 1

Diesel engine exhaust 

(EGU 6) 39999992 0.71 N

2007

Qwest 

Communications 

Corporation -

Sterling 73158 107 00814 1 1 1

1-3*Caterpillar 3516B 

Genset 20200102 0.57 N
Updated March 10, 2010

Page 34

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

Qwest 

Communications 

Corporation -

Sterling 73158 107 00814 2 2 1

1-10*Cummins Onan 

Genset 20200102 1.24 N

2007

Equinix 

Incorporated 73199 107 00820 1 1 1

DC4-1,1-7*Caterpillar 

3516B Gen 20100101 3.91 N

2007

Equinix 

Incorporated -

21711 Filigree 

Court 73233 107 00823 1 1 2

C1-3* Caterpillar 

3412B Genset 39999992 0.43 N

2007

Equinix 

Incorporated -

21711 Filigree 

Court 73233 107 00823 2 2 2

F1-6* Caterpillar 

3516B Genset 39999992 4.81 N

2007

Equinix 

Incorporated -

21711 Filigree 

Court 73233 107 00823 3 3 2

G1-7* Caterpillar 

3516C genset 39999992 0.72 N

2007

AT&T Web 

Hosting Facility 73240 107 00824 1 1 1 1-6 GenSets #2 Oil 20200102 0.92 N

2007

AT&T Web

Hosting Facility 73240 107 00824 2 2 1

G7 - CAT 3516C 

GenSet, 2000 kW, 

Diesel Fueled 39999992 0.64 N

2007

AT&T Web 

Hosting Facility 73240 107 00824 3 3 1

G8 - CAT 3516C 

GenSet, 2000 kW, 

Diesel Fueled 39999992 0.64 N

2007

AT&T Web 

Hosting Facility 73240 107 00824 4 4 1

G9 - CAT 3516C 

GenSet, 2000 kW, 

Diesel Fueled 39999992 0.64 N

2007

AT&T Web 

Hosting Facility 73240 107 00824 5 5 1

G10 - CAT 3516C 

GenSet, 2000 kW, 

Diesel Fueled 39999992 0.64 N

2007

AT&T Web 

Hosting Facility 73240 107 00824 6 6 1

G11 - CAT 3516C 

GenSet, 2000 kW, 

Diesel Fueled 39999992 0.64 N
Updated March 10, 2010

Page 35

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

AT&T Web 

Hosting Facility 73240 107 00824 7 7 1

G12 - CAT 3516C 

GenSet, 2000 kW, 

Diesel Fueled 39999992 0.64 N

2007

LCSA - Broad 

Run Water 

Reclamation 73268 107 00831 1 1 2

G1-3*Cummins 

2000DQKC, kW-hrs 39999991 0.01 N

2007

LCSA - Broad 

Run Water 

Reclamation 73268 107 00831 1 1 1

G1-3*Cummins 

2000DQKC Gen. 39999992 0.16 N

2007

Nextel Sterling 

Lab VA-9 73286 107 00838 1 1 1 Diesel engine exhaust 39999992 0.17 N

2007

VeriSign 

Incorporated 

Broad Run 

Facility2 73341 107 00843 1 1 1 Desiel fuel firing 39999992 0.72 N

2007

VeriSign 

Incorporated 

Broad Run 

Facility2 73341 107 00843 2 2 1 Desiel fuel firing 39999992 0.72 N

2007

VeriSign 

Incorporated 

Broad Run 

Facility2 73341 107 00843 3 3 1 Desiel fuel firing 39999992 0.72 N

2007

HB Mellott Estate 

Incorporated - Bull 

Run Plant 73356 107 00847 2 2 1 diesel fuel firing 39999992 0.42 N

2007

HB Mellott Estate 

Incorporated - Bull 

Run Plant 73356 107 00847 3 3 1 diesel fuel firing 39999992 0.44 N

2007

HB Mellott Estate 

Incorporated - Bull 

Run Plant 73356 107 00847 4 4 1 diesel fuel firing 39999992 1.23 N

2007

HB Mellott Estate 

Incorporated - Bull 

Run Plant 73356 107 00847 5 5 1 diesel fuel firing 39999992 1.82 N
Updated March 10, 2010

Page 36

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

Savvis 

Communications 

Corporation-DC

Four Facility 73641 107 00885 1 1 1

Cummins Diesel 

GenSet, EG R (1) 39999992 0.16 N

2007

Savvis 

Communications 

Corporation-DC 

Four Facility 73641 107 00885 2 2 1

Cummins Diesel 

GenSet, EG A (2) 39999992 0.20 N

2007

Savvis 

Communications 

Corporation-DC 

Four Facility 73641 107 00885 3 3 1

Cummins Diesel 

GenSet, EG B (3) 39999992 0.20 N

2007

Savvis 

Communications 

Corporation-DC 

Four Facility 73641 107 00885 4 4 1

Cummins Diesel 

GenSet, EG C (4) 39999992 0.16 N

2007

Savvis 

Communications 

Corporation-DC 

Four Facility 73641 107 00885 5 5 1

Cummins Diesel 

GenSet, EG D (5) 39999992 0.15 N

2007

Savvis 

Communications 

Corporation-DC 

Four Facility 73641 107 00885 6 6 1

Cummins Diesel 

GenSet, EG E (6) 39999992 0.16 N

2007

Savvis 

Communications 73160 107 73160 1 1 1

1-5*Caterpillar model 

3512 gen. #2 oil 39999992 0.92 N

2007

Savvis 

Communications 73160 107 73160 2 2 1

1-6 2000 kw 

Emergency generators 

#2 oil 39999992 0.80 N

2007

Savvis 

Communications 73160 107 73160 3 3 1

Caterpillar model 3512-

C 1250 kW GenSet. 

Diesel Fuel 39999992 0.09 N

2007 Blackstone Town 30881 135 00033 1 1 1

DSL GEN hours of 

operation 28888803 1.21 N

2007

American Tower 

Corporation 40876 137 00031 1 1 1 Segment 1 Description 20200102 0.12 N
Updated March 10, 2010

Page 37

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

Danville City -

Department of 

Utilities 32039 143 00157 1 1 1 Generator - distillate oil 20200401 0.43 N

2007

Prince William 

Hospital 

Corporation 70006 153 00011 5 5 1

EG-1 through EG-5 

Generators 20300101 2.02 N

2007 Potomac Hospital 70295 153 00047 3 9 1

HG-4 - 1500 kW 

Caterpillar 3512B 

emergency generator 20200102 0.43 N

2007 Potomac Hospital 70295 153 00047 3 3 1

HG-3 - 1500 kW 

Caterpillar 3512B 

emergency generator 20200102 0.64 N

2007

Comcast 

Cablevision of 

Virginia 

Incorporated 72374 153 00144 1 1 1

Two diesel-driven 

emergency generators 39999992 0.27 N

2007 Verizon Business 73200 153 00147 1 1 1

Emergency Generators 

(Ref #s 1-7) 39999992 3.60 N

2007

City of Manassas 

WTP 73229 153 00817 1 1 2

Caterpillar 3516B 

diesel generator -

kilowatt/hours 39999991 1.16 N

2007

Architect of the 

Capitol 73264 153 00889 2 2 1

Cummins generator, 

Model KTA5063, 1250 

kw, EG 250-1 20100102 1.09 N

2007

Architect of the 

Capitol 73264 153 00889 3 3 1

Cummins generator, 

Model VT1710, 450 

kW, EG 250-2 20100102 0.39 N

2007

Architect of the 

Capitol 73264 153 00889 4 4 1

#1 Cummins generator, 

QSK60-G6, rated at 

2000kW 20100102 0.44 N

2007

Architect of the 

Capitol 73264 153 00889 7 5 1

#2 Cummins generator, 

QSK60-G6, rated at 

2000kW 20100102 0.88 N
Updated March 10, 2010

Page 38

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

Old Dominion 

Electric 

Cooperative -

Portable 61416 61416 175 61416 1 1 1

2000 kW Diesel 

Generator-Unit 1

23636 Meherrin Rd, 

Courtland VA 23837 20200401 0.89 N

2007

Old Dominion 

Electric 

Cooperative -

Portable 61417 61417 175 61417 1 1 1

2000 kW Diesel 

Generator, 23636 

Meherrin Rd, Courtland 

VA 23837 20200401 0.94 N

2007

GM Powertrain 

Fredericksburg 40684 177 00043 5 6 1

Emergency Generator 

(540bhp) 20200102 0.15 N

2007

GM Powertrain 

Fredericksburg 40684 177 00043 6 7 1 Fire Pump - 255bhp 20200102 0.05 N

2007

Spotsylvania Co 

Water TreatmentNi River 40887 177 00079 1 1 1Cummins Emergency 

Generator-No. 2 fuel oil20200401 0.12 N

2007

Spotsylvania Co 

Water TreatmentNi River 40887 177 00079 1 2 1Emergency Generator -

400 kW 20300101 0.14 N

2007

Rappahannock

Electric Coop 

Thornburg Middle 

Sch 40980 177 00099 1 1 1

2000 kW Caterpillar 

Genset 20100102 7.13 N

2007

FMC Waste Water 

Treatment Plant 41009 177 00105 1 3 1

100 kW emerg. 

genrator, falls under 

emerg. generator rule 20200102 0.07 N

2007

FMC Waste Water 

Treatment Plant 41009 177 00105 1 1 1

Caterpillar DP100P4, 

750 kW 20200401 0.08 N

2007

FMC Waste Water 

Treatment Plant 41009 177 00105 1 2 1

Emerg. Generator - 625 

kW 20200401 0.07 N

2007

Spotsylvania 

County Utilities 

Dept. Motts Run 

WTP 41010 177 00106 1 1 1 Emerg. Generator 20200102 0.19 N

2007

STAFFORD 

CORRECTIONAL 

UNIT 21 40569 179 00013 1 1 1

CUMMINGS DIESEL 

176 BHP 20300101 4.53 N
Updated March 10, 2010

Page 39

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

Inova Alexandria 

Hospital 70268 510 00035 1 4 1

CATERPLR #1 

GENERATOR 20200102 0.85 N

2007

Inova Alexandria 

Hospital 70268 510 00035 1 4 2

CATERPLR #2 

GENERATOR 20200102 0.85 N

2007

Surface 

Deployment 

Distribution 

Command 73362 510 00367 1 1 2

G-2 Cummins Onan 

diesel genset 39999992 0.20 N

2007

Surface 

Deployment 

Distribution 

Command 73362 510 00367 1 1 1

G-1 Cummins Onan 

diesel genset 39999992 0.84 N

2007

Danville City -

Department of 

Utilities 32037 590 00152 1 1 1 Generator - distillate oil 20200401 0.45 N

2007

Danville City -

Department of 

Utilities 32038 590 00153 1 1 1 Generator - distillate oil 20200401 0.38 N

2007

Verizon Virginia 

Incorporated - Lee 

Highway 73301 600 00848 1 1 1

Two 1000 kW 

Generators 39999992 0.52 N

2007

Franklin City -

Electric Dept -

Mechanic Street 60182 620 00011 1 1 1

2 DIESEL 

GENERATORS 20100102 5.82 N

2007

Franklin City -

Pretlow Power 

Plant 61419 620 00056 1 1 1

2 - PEAK SHAVING 

GENERATORS 20200401 0.04 N

2007

The Harrisonburg 

Electric 

Commission 81272 660 00146 1 1 1

RROYCEAVON1533 

OIL TURBI 20100101 4.63 N

2007

The Harrisonburg 

Electric 

Commission 81272 660 00146 2 2 1

Caterpillar model 

3516B compression 

ignition engine driven 

electri generator 20100102 0.83 N
Updated March 10, 2010

Page 40

Table 5: Line items in the DG inventory

Year Plant Name Reg # FIPS Plant ID

Stack #

Point #

Seg #

Segment Description SCC NO2 TPY

Submitted with 

initial 2007

inventory?

2007

The Harrisonburg 

Electric 

Commission 81272 660 00146 3 3 1

Caterpillar Model 

3516B D-6 generator 20200102 1.01 N

2007

Harrisonburg 

Electric 

Commission - Mt 

Clinton Pike 81342 660 00155 1 1 1

Stationary Gas Turbine 

#2 20100101 2.92 N

2007

Harrisonburg 

Electric 

Commission - Mt 

Clinton Pike 81342 660 00155 2 2 1

Caterpillar model 

3516B-D2 

compression-ignition 

engine driven generator 20100102 1.03 N

2007

Harrisonburg 

Electric 

Commission - Mt 

Clinton Pike 81342 660 00155 3 3 1

Caterpillar model 

3516B -D3 

compression-ignition 

engine driven generator 20100102 0.94 N

2007

Harrisonburg 

Electric 

Commission - Mt 

Clinton Pike 81342 660 00155 4 4 1

Caterpillar model 

3516B -D5 

compression-ignition 

engine driven generator 20100102 0.95 N

2007

City of Manassas -

Gateway 

Generation 73642 683 00155 1 1 1

EU01*1825 kW 

Caterpillar/ kW-hrs 39999991 2.80 N

2007

City of Manassas -

Portable Genset 1 73569 683 73569 1 1 1

PG-1*Caterpillar 

3516B- kW-Hours 39999991 2.32 N

2007

City of Manassas -

Portable Genset 2 73570 683 73570 2 2 1

PG-2*Caterpillar 

3516B- kW-hours 39999991 2.09 N

2007

Salem Water 

Treatment Plant 21403 775 00252 1 1 1

Emergency Diesel 

Generator 39999992 4.90 N

Total of NOx for units submitted with 

initial 2007 inventory: 530.12

Total of NOx for units not submitted 

with initial 2007 inventory: 155.88

Total NOx, all DG units: 686.00