108

Appendix B: Area Source Category Emission Calculation Methodologies 

Category: AREA SOURCES SCC SWCAA Methodology SWCAA Methodology

1997 & 1998 O3 Episodes 2002/2015 Future Year Episode

AREA SOURCES

 FUEL STORAGE AND TRANSPORT

Area Source Categories 25-01-000-000 Did not include Did not include

Marine Vessel Transport

Residual Oil 25-05-000-060 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Tanker - Gasoline 25-05-020-120 Contribution from Tidewater Barge Lines Contribution from Tidewater Barge Lines

Barge - Gasoline 25-05-020-121 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Jet Naphtha 25-05-000-150 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Aviation Fuel Distribution

Aircraft Fueling: Uncontrolled - Aviation Gas Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Aircraft Fueling: Controlled - Aviation Gas Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

UST Working Loss - All Fuels 22-75-900-202 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

UST Filling - All Fuels 22-75-900-201 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Truck Transport (Jet Naphtha) Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Truck Transport (Aviation Gas) Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Truck Transport (Jet Fuel) Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Vehicle Fuel Distribution

Stage I Uncontrolled 25-01-060-052 Calculated from SWCAA Database SWCAA and PSCAA data

Stage I Controlled 25-01-060-053 Calculated from SWCAA Database SWCAA and PSCAA data

Stage II Uncontrolled (doesn't exist) 25-01-060-101 Did Not Include Did Not Include

Stage II Controlled 25-01-060-102 Calculated from SWCAA Database No Stage II in out-year

UST Working Loss 25-01-060-201 These emissions included in other 25-01-060-xxx categories These emissions included in other 25-01-060-xxx categories

Truck Transport (Auto Gas) 25-05-030-120 Calculated using EIIP EF Did Not Include

 SOLVENT EVAPORATION/UTILIZATION

Surface Coating

Auto Refinishing 24-01-005-000 Actual Emissions from small source database Actual Emissions from SWCAA - EIIP for other counties

Factory Finished Wood 24-01-015-000

Wood Furniture 24-01-020-000

Paper 24-01-030-000 Not inventoried as area source (assumed point source) Not inventoried as area source (assumed point source)

Metal Cans 24-01-040-000

Metal Coils 24-01-045-000

Misc. Metals 24-01-050-000 Lumped into Industrial Coatings

Machinery & Equipment 24-01-055-000 2002 NEI data

Electronic & Other Electrical 24-01-065-000

Motor Vehicles 24-01-070-000

Marine 24-01-080-000

EIIP Chapter 8, Employees from County Business Patterns 

(SIC in 1997 and NAICS in 1998), VOC EF from Table 8.5-2.

Plastic Products 24-01-035-000 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Misc. Manufacturing 24-01-090-000 EIIP, Table 8.5-2 (9/26/97) EIIP, Table 8.5-2 (9/26/97)

Industrial Maintenance 24-01-100-000 EIIP, Table 8.5-2 (9/26/97) EIIP, Table 8.5-2 (9/26/97)

Special Purpose 24-01-200-000 EIIP, Table 8.5-2 (9/26/97) EIIP, Table 8.5-2 (9/26/97)

Traffic Markings 24-01-008-000 EIIP Chapter 14 (5/17/97), Alternative 1 EIIP Chapter 14 (5/17/97), Alternative 1

Architectural 24-01-001-000 EIIP Chapter 3 & Census/Paint and Allied Products EF dev

WDOE 2002 CERR data - EIIP Chapter 3 & Census/Paint and 

Allied Products EF dev

Surface Cleaning: Each category contains 4 subcategories

Furniture & Fixtures 24-15-005 to 305-000

Primary Metal Industries 24-15-010 to 310-000

Fabricated Metal Products 24-15-020 to 320-000

Industrial Machinery & Equipment 24-15-025 to 325-000

Electronic & Other Electrical 24-15-030 to 330-000

Transportation Equipment 24-15-035 to 335-000

Instruments & Related Products 24-15-040 to 340-000

Misc. Manufacturing 24-15-045 to 345-000

Transportation Maintenance Facilities 24-15-050 to 350-000

Automative Dealers 24-15-055 to 355-000

Auto Repair Services 24-15-065 to 365-000

Graphic Arts

All Processes & Solvents 24-25-000-000

Alternative method 2 from EIIP Chapter 7 (10/96): (SIC or 

NAICS employment) Subtract out to avoid double counting

Alternative method 2 from EIIP Chapter 7 (10/96): 

(employment surrogate) Subtract out to avoid double counting

22-75-900-101

25-05-030-180

EIIP Chapter 8, Employees from County Business Patterns 

(SIC in 1997 and NAICS in 1998), VOC EF from Table 8.5-2.

EIIP Chapter 8, Employees from County Business Patterns 

(SIC in 1997 and NAICS in 1998), VOC EF from Table 8.5-2.

EIIP Chapter 8, Employees from County Business Patterns 

(SIC in 1997 and NAICS in 1998), VOC EF from Table 8.5-2. 2002 NEI data

Methodology per SIC employee emission factors given in EIIP, 

Chapt. 6. SIC employee data obtained from County Business 

Patterns website. SIC converted to NAICS (for 1998) (EIIP 

methodology, Chapt. 8). No total (all processes) entered into 

the database to avoid double counting. Open top degreasing 

categories added. 

Methodology per SIC employee emission factors given in 

EIIP, Chapt. 6. SIC employee data obtained from County 

Business Patterns website. SIC converted to NAICS (EIIP 

methodology, Chapt. 8). No total (all processes) entered into 

the database to avoid double counting. Open top degreasing 

categories added. 

EIIP Chapter 8, Employees from County Business Patterns 

(SIC in 1997 and NAICS in 1998), VOC EF from Table 8.5-2.

EIIP Chapter 8, Employees from County Business Patterns 

(SIC in 1997 and NAICS in 1998), VOC EF from Table 8.5-2. EIIP Chapter 8, Employees from County Business Patterns 

(SIC in 1997 and NAICS in 1998), VOC EF from Table 8.5-2.
109

Miscellaneous Non-Industrial : Commercial

Cutback Asphalt 24-61-021-000

Emulsified Asphalt 24-61-022-000

Roofing Asphalt 24-61-023-000 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Pesticide Application 24-61-850-000 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Fertilizer Application-Anhydrous Ammonia 28-01-700-001 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Fertilizer Application-Aqua Ammonia 28-01-700-002 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Fertilizer Application-Nitrogen Solutions 28-01-700-003 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Fertilizer Application-Urea 28-01-700-004 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Fertilizer Application-Ammonium Nitrate 28-01-700-005 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Fertilizer Application-Ammonium Sulfate 28-01-700-006 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Fertilizer Application-Other Straight Nitrogen 28-01-700-008 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Fertilizer Application-Ammonium Phosphates 28-01-700-009 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Fertilizer Application-Nitrous oxide 28-01-700-011 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Fertilizer Application-Nitric oxide 28-01-700-012 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Miscellaneous Non-Industrial: Consumer

Coatings and Related Products 24-60-500-000 EIIP, Table 5.4-1 (8/2/96) - Population Surrogate

WDOE 2002 CERR data - EIIP, Table 5.4-1 (8/2/96) - 

Population Surrogate

Personal care 24-65-100-000 EIIP, Table 5.4-1 (8/2/96) - Population Surrogate

WDOE 2002 CERR data - EIIP, Table 5.4-1 (8/2/96) - 

Population Surrogate

Household Products 24-65-200-000 EIIP, Table 5.4-1 (8/2/96) - Population Surrogate

WDOE 2002 CERR data - EIIP, Table 5.4-1 (8/2/96) - 

Population Surrogate

Auto Aftrmkt 24-65-400-000 EIIP, Table 5.4-1 (8/2/96) - Population Surrogate

WDOE 2002 CERR data - EIIP, Table 5.4-1 (8/2/96) - 

Population Surrogate

Adhesives/Sealants 24-65-600-000 EIIP, Table 5.4-1 (8/2/96) - Population Surrogate

WDOE 2002 CERR data - EIIP, Table 5.4-1 (8/2/96) - 

Population Surrogate

Pesticide(fifra) 24-65-800-000 EIIP, Table 5.4-1 (8/2/96) - Population Surrogate

WDOE 2002 CERR data - EIIP, Table 5.4-1 (8/2/96) - 

Population Surrogate

Miscellaneous 24-65-900-000 EIIP, Table 5.4-1 (8/2/96) - Population Surrogate

WDOE 2002 CERR data - EIIP, Table 5.4-1 (8/2/96) - 

Population Surrogate

Dry Cleaning

Solvents NEC 24-20-000-999 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Perchloroethylene

1996 = 24-20-000-055 

1999 = 4-01-001-13 Did Not Include (Not a VOC) Did Not Include (Not a VOC)

 WASTE DISPOSAL, TREATMENT, & RECOVERY

Open Burning

residential, garbage 26-10-030-000

All open burning based on past SWCAA survey's and 

extrapolated based on per capita growth. (Includes residential 

brush, debris, and garbage). 2002 CERR data from WDOE

commercial 26-10-020-000 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

residential, includes leaves & brush 26-10-000-000 Lumped in with 26-10-030-000 Lumped in with 26-10-000-400

residential, brush 26-10-000-400 Lumped in with 26-10-030-000 2002 CERR data from WDOE

residential, leaves 26-10-000-100 Lumped in with 26-10-030-000 Lumped in with 26-10-030-000

Municipal Landfills

Landfills 26-20-030-000 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Landfills (TV) 5-01-004-02 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Wastewater Treatment

POTW's 26-30-020-000 Did Not Include (Included in PT sources) Did Not Include (Included in PT sources)

Leaking Underground Storage Tanks

LUST's 26-60-000-000 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

 SMALL STATIONARY FUEL & WOOD USE

ind. fuel oil (dist. & kero) 21-02-004-000 Did Not Include (Included in PT sources) Did Not Include (Included in PT sources)

ind. fuel oil (residual) 21-02-005-000 Did Not Include (Included in PT sources) Did Not Include (Included in PT sources)

industrial LPG 21-02-007-000 Did Not Include (Included in PT sources) Did Not Include (Included in PT sources)

com. fuel oil (dist. & kero) 21-03-004-000 Residential and Commercial Fuel Use Based SWCAA Factors 2002 NEI data

com. fuel oil (residual) 21-03-005-000 Residential and Commercial Fuel Use Based SWCAA Factors Lumped into 21-03-004-000

commercial LPG 21-03-007-000 Residential and Commercial Fuel Use Based SWCAA Factors 2002 NEI data

commercial natural gas 21-03-006-000 Residential and Commercial Fuel Use Based SWCAA Factors 2002 NEI data

industrial natural gas 21-02-006-000 Residential and Commercial Fuel Use Based SWCAA Factors Lumped into point sources or Commercial Nat. Gas

residential fuel oil (dist. & kero) 21-04-004-000 Residential and Commercial Fuel Use Based SWCAA Factors 2002 NEI data

residential LPG 21-04-007-000 Residential and Commercial Fuel Use Based SWCAA Factors 2002 NEI data

residential natural gas 21-04-006-000 Residential and Commercial Fuel Use Based SWCAA Factors 2002 NEI data

Throughput from Chevron (sales to SW WA), methods from 

EIIP Chapt. 17 and Chevron/ODEQ Factors 2002 NEI data
110

Residential Wood Combustion

Fireplaces 21-04-008-001 Did Not Include (Insignificant in Summer)

Catalytic Wood Stoves 21-04-008-030 Did Not Include (Insignificant in Summer)

Non-catalytic Wood Stoves 21-04-008-050 Did Not Include (Insignificant in Summer)

Convetional Wood Stoves 21-04-008-051 Did Not Include (Insignificant in Summer)

Pellet Stoves 21-04-008-053 Did Not Include (Insignificant in Summer)

 MISC. AREA SOURCES

Agricultural

Ag. field burning 28-01-500-000 Did Not Include (Insignificant in Summer) WDOE 2002 CERR data

Ag. propane burning 28-01-501-000 Did Not Include (Insignificant in Summer) Did Not Include (Insignificant in Summer)

Ag. stack burning 28-01-502-000 Did Not Include (Insignificant in Summer) Did Not Include (Insignificant in Summer)

Orchard Burning - Apples 28-01-500-320 Did Not Include (Insignificant in Summer) Did Not Include (Insignificant in Summer)

Orchard Burning - Cherries 28-01-500-350 Did Not Include (Insignificant in Summer) Did Not Include (Insignificant in Summer)

Orchard Burning - Grapes 28-01-500-500 Did Not Include (Insignificant in Summer) Did Not Include (Insignificant in Summer)

Orchard Burning - Hazelnuts 28-01-500-450 Did Not Include (Insignificant in Summer) Did Not Include (Insignificant in Summer)

Orchard Burning - Peaches 28-01-500-410 Did Not Include (Insignificant in Summer) Did Not Include (Insignificant in Summer)

Orchard Burning - Pears 28-01-500-420 Did Not Include (Insignificant in Summer) Did Not Include (Insignificant in Summer)

Orchard Burning - Prunes/Plums 28-01-500-430 Did Not Include (Insignificant in Summer) Did Not Include (Insignificant in Summer)

Orchard Burning - Walnuts 28-01-500-440 Did Not Include (Insignificant in Summer) Did Not Include (Insignificant in Summer)

Orchard Burning - Other 28-01-500-300 Did Not Include (Insignificant in Summer) Did Not Include (Insignificant in Summer)

Orchard Heaters - All Fuels 28-01-520-000 Did Not Include (Insignificant in Summer) Did Not Include (Insignificant in Summer)

Orchard Heaters - Propane 28-01-520-010 Did Not Include (Insignificant in Summer) Did Not Include (Insignificant in Summer)

Orchard Heaters - Diesel 28-01-520-004 Did Not Include (Insignificant in Summer) Did Not Include (Insignificant in Summer)

Other Combustion

Wildfires 28-10-001-000

Did Not Include (Checked episode dates and fire dates to assure 

these not significant) Did Not Include (Assumed Insignificant)

Prescribed Burning 28-10-015-000 Did Not Include (Assumed Insignificant) WDOE 2002 CERR data

Structure Fires 28-10-030-000 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Misc 

Commercial Charbroiling 23-02-002-000

Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Commercial Deep Fat Frying 23-02-080-001

Did Not Include (One large source included in Pt sources) Did Not Include (One large source included in Pt sources)

Hospital Sterilization 28-50-000-010 Did Not Include (Assumed Insignificant) Did Not Include (Assumed Insignificant)

Chrome Electroplating 3-09-010-XXX

Did Not Include (Insignificant) Did Not Include (Insignificant)

NONROAD MOBILE

Misc. 2-stroke, 4-stroke, Diesel 22-60,65,70-XXX-000 Nonroad 2002a Nonroad2004 model used to calculate 2015 data

Recreational Marine Vessels 22-82-XXX-XXX Nonroad 2002a Nonroad2004 model used to calculate 2015 data

Commercial Marine Vessels 22-80-002-000

Relied on OR data for Columbia, NWRTC Data for Puget 

Sound Area

ODEQ Calculated Columbia River data. WDOE 2002 CERR 

CMV data for all other counties 

Aircraft 22-75-000-000

Calculated based on SWCAA derived EF Included aircraft emissions from Puget Sound Region

Railroads 22-85-002-XXX ODEQ 1996 Research for WA state WDOE 2002 CERR Data. Applied EPA Factors to adjust for 

Tier 0-II standards and fleet turnover

ONROAD MOBILE

Onroad Mobile Emissions Mobile 6a (by ODEQ), RTC VMT, WDOE VMT Calculated directely for 2015

2002 CERR from WDOE lumped into 21-04-008-000