Form G is for general air pollution sources. Use specific forms when applicable. If this source burns fuel, then also
complete Form C.
1. Business Name:
Plant No:
2. SIC No.:
Date of Initial Operation
3. Name or Description:
Source No.:
S-
4. Make, Model, and Rated Capacity of Equipment:
5 Process Code
Material Code
Usage Unit
6. Total throughput, last 12 mos. usage units
2
Maximum operating rate: usage units
2
/hr
7. Typical % of total throughput: Dec-Feb %
Mar-May %
Jun-Aug %
Sep-Nov %
8. Typical operating times:
hrs/day
days/week
weeks/year
9. For batch or cyclic processes:
minutes/cycle
minutes between cycles
10. Exhaust gases from source:
Wet gas flowrate
cfm
at
F
(at maximum operation
)
Approximate water vapor content
volume%
EMISSION FACTORS (at maximum operating rate)
If this form is being submitted as part of an application for an authority to construct, completion of the following table is
mandatory. If not, and the Source is already in operation, completion of the table is requested but not required.
If this source also burns fuel, do not include those combustion products in the emission factors below; they are accounted
for on Form C. If source test or other data are available for composite emissions only, estimate from those data the
emissions attributable to just the general process and show below.
Check box if factors apply to emissions after Abatement Device(s).
Emission Factors
lb/Usage Unit
2
Basis Code
11. Particulate .....................................
12. Organics ........................................
13. Nitrogen Oxides (as N0
2
) ..............
14, Sulfur Dioxide ................................
15. Carbon Monoxide ..........................
16. Other:_______________________
17. Other:_______________________
18. With regard to air pollutant flow from this source, what sources(s), abatement device(s) and/or emission point(s) are
immediately downstream?
S-
S-
S-
A
A-
A-
P-
P-
P-
P-
P-
See Tables G-1 through G-7 for code
See Table G5 or the Material Codes Table (available upon request)
See Basis Code Table below
Person completing this form:
Date:
Form G revised 4/12/16
DATA FORM G
General Air Pollution Source
BAY AREA AIR QUALITY MANAGEMENT DISTRICT
375 Beale Street, Suite 600, San Francisco, CA 94105 (415) 749-4990 FAX (415) 749-5030
www.baaqmd.gov
10/08
Basis Code
Process Code Tables for General Air
Pollution Sources (Data Form G)
Codes
Method
Table
Process
0
Not applicable for this pollutant
G-1
Food & Agricultural
1
Source Testing or other measurement by plant
G-3
Metallurgical (Secondary Metals)
2
Source Testing or other measurement by BAAQMD
G-4
Mineral
3
Specification from vendor
G-5
Petroleum Refining
4
Material balance by plant using engineering
G-7
Chemical/Other
expertise and knowledge of process
G-8
Miscellaneous
5
Material balances by BAAQMD using engineering
G-9
Fugitive Emissions
expertise and knowledge of process
6
Taken from AP-42 ("Compilation of Air Pollutant
Emission Factors," E.P.A.)
7
Taken from literature, other than AP-42
8
Guess
TABLE G-1
FOOD AND AGRICULTURAL PROCESSES
CODE PROCESS
1028 Aging
1001 Brewing
1022 Cleaning
1021 Conveying/transferring
1003 Cooking
1020 Cooling/stoning
1004 Cotton ginning - cleaner
1005 Cotton ginning - stick/burr machine
1006 Cotton ginning - unloading fan
1026 Dehydration
1007 Direct fired kiln
1008 Direct fired roaster
1016 Dryer - rotary
1019 Dryer - spray
1023 Dryer - other
1009 Drying tower
1030 Extraction - mechanical
1029 Extraction - solvent
1027 Fermentation
1014 Grinding
1010 Indirect fired kiln
1011 Indirect fired roaster
1007 Kiln - direct fired
1010 Kiln - indirect fired
1012 Liquor aging
1013 Meat smoker
1024 Milling
1036 Mixing/blending
1025 Oven baking
1035 Packaging
1030 Pressing - extraction
1031 Pressing - other
1015 Prilling
1008 Roaster - direct fired
1011 Roaster - indirect fired
1016 Rotary dryer
1017 Screening
1018 Shipping & receiving
1019 Spray dryer
1032 Sterilization - food/pharmaceutical
products
1020 Stoning/cooling
1034 Storage
1033 Sulfuring - fruit/food stuff
1021 Transferring/conveying
1999 Other/not specified
10/08
TABLE G-3
METALLURGICAL (SECONDARY METALS)
DRYING (Kilns/Dryers/Ovens)
3002 Calcining kiln
3003 Concentrate dryer
3004 Oxide kiln
3005 Other/not specified
FURNACES
3030 Bake furnace
3007 Blast furnace
3008 Casting furnace
3009 Crucible furnace
3010 Cupola
3011 Cupola furnace
3012 Electric arc furnace
3013 Flux furnace
3014 Heat treating furnace
3015 Horizontal muffle furnace
3016 Induction furnace
3017 Open hearth furnace
3018 Open hearth furnace w/ oxygen lance
3019 Pot furnace
3020 Retort furnace
3059 Reverberatory - rotary
3022 Reverberatory - sweat
3021 Reverberatory - other
3023 Rotary furnace - non-reverberatory
3024 Smelt-crucible furnace
3025 Smelt-reverberatory furnace
3026 Sweating furnace
3027 Other/not specified
MATERIAL HANDLING/MISCELLANEOUS
3062 Abrasives blasting
3078 Alodyning
3029 Annealing
3065 Annealing - continuous
3063 Anodizing
3069 Buffing/polishing
3031 Can making operations
3046 Casting - miscellaneous
3033 Chlorination station
3062 Cleaning - abrasives blasting
3034 Cleaning - chemical
3076 Conveying
3068 Crushing/shredding
3035 Drawing
3036 Drilling
3037 Extruding
3047 Fabricating - miscellaneous
3039 Finishing - soak pit
3038 Finishing - other/not specified
3040 Foil converting
3041 Foil rolling
3042 Galvanizing
3043 Grinding
3044 Honing
3045 Lead oxide manufacturing
3067 Machine shop operations
3061 Milling/turning
3046 Miscellaneous casting
3047 Miscellaneous fabricating
3048 Mixing
3064 Non-destructive coating
3049 Paste mixer (lead batteries)
3072 Pickling
3050 Pitch treating (furnace electrode mfg)
3051 Plating (not chrome)
3070 Plating dec chrome-hexavalent <=500,000
amphr
3080 Plating dec chrome-hexavalent >500,000
amphr
3079 Plating dec chrome-trivalent
3071 Plating hard chrome-hexavalent
3081 Plasma metal application (thermal spraying)
3052 Reaming
3073 Refining
3053 Rolling
3054 Sand handling
3055 Sanding
3056 Sawing
3077 Screening
3060 Sintering
3075 Soldering
3057 Storage
3074 Ventilation
3066 Welding
3999 Other/not specified
10/08
TABLE G-4
MINERAL PROCESSES
DRYING (Kilns/Dryers/Ovens)
4002 Calcimatic kiln
4082 Cement calcining kiln
4003 Coke dryer
4004 Curing oven
4005 Fluidized bed kiln
4006 Rotary dryer
4070 Rotary kiln
4007 Vertical kiln
4008 Other/not specified
FURNACES
4010 Cupola
4012 Electric furnace
4011 Electric induction furnace
4013 Reverberatory furnace - other
4014 Reverberatory furnace - recupex
4015 Reverberatory furnace - regenex
4071 Rotary - non-reverberatory
4016 Soda lime genl furnace (glass
manufacturing)
4072 Vertical furnace - other
4017 Other/not specified
MATERIAL HANDLING/MISCELLANEOUS
4073 Abrasives blasting
4019 Asphalt blowing
4020 Asphalt dipping
4077 Asphalt mixing - batch/continuous
4078 Asphalt mixing - rotary drum
4021 Asphalt spraying
4022 Bagging
4073 Blasting - abrasives cleaning
4023 Blasting - quarry
4024 Blow chamber
4075 Calcining
4025 Coal cleaning - therm/flash
4026 Coal cleaning - therm/fluid bed
4027 Coal cleaning - therm/multi low pd
4028 Concrete batching - asbestos/cement
products
4029 Concrete batching - other
4030 Conveying
4031 Cooling
4032 Crushing
4033 Drying (open air)
4034 Electric arc melting
4035 Fiberizing
4036 Forming line (fiberglass
manufacturing)
4037 Furnace room venting
4074 Glass enamel spraying
4038 Glass manufacturing - batching
4039 Glass manufacturing - material
receiving
4040 Glass manufacturing - material storage
4041 Glass manufacturing - mixing
4042 Glass manufacturing - molten holding
tanks
4043 Glass manufacturing - other/not
specified
4044 Grinding
4045 Hold/shakeout
4046 Hydrator
4079 Loading - feed/surge/weigh bins
4080 Loading/unloading (non-mining/quarry)
4047 Milling
4048 Mining/quarry - cobbing
4053 Mining/quarry - crushing (primary)
4054 Mining/quarry - crushing (secondary)
4069 Mining/quarry - crushing (tertiary)
4061 Mining/quarry - loading/unloading
4049 Mining/quarry - open pit blasting
4050 Mining/quarry - open pit cobbing
4051 Mining/quarry - open pit drilling
4052 Mining/quarry - ore concentrating
4055 Mining/quarry - stockpiling
4056 Mining/quarry - stripping
4057 Mining/quarry - surface blasting
4058 Mining/quarry - surface drilling
4059 Mining/quarry - tailing piles
4060 Mining/quarry - tailings
4062 Mining/quarry - ventilating
4068 Mining/quarry - other
4081 Mixing operations
4063 Road surfacing
4073 Sand blasting
4064 Screening
4065 Sintering
4066 Stone cutting
4067 Storage - contained
4076 Storage - open
4037 Venting - furnace room
4099 Other/not specified
10/08
TABLE G-5
PETROLEUM REFINING PROCESSES
CODE PROCESS CODE MATERIAL USAGE UNITS
5040 Air Stripping/DAF processing 300 Waste Water 1000 barrels
5030 Alkylation 195 Hydrocarbons - olefinic 1000 barrels feed
5001 Asphalt oxidizer 30 Asphalt tons processed
5002 Blow-down system - w/ controls 340 Crude oil * 1000 bbl/day ref cap
5003 Blow-down system - w/o controls 340 Crude oil * 1000 bbl/day ref cap
5004 Catalytic reforming 342 Cat reformer fresh feed 1000 barrels fresh feed
5023 Chemical treating - other 239 Feedstock 1000 barrels
5038 Coke storage piles (open) 80 Coke tons
5025 Converting - other/not specified 239 Feedstock 1000 barrels
5005 Cooling tower 428 Water - brackish/sea 1000 gallons
5005 Cooling tower 415 Water - fresh 1000 gallons
5005 Cooling tower 300 Waste Water 1000 barrels
5018 Delayed coking 343 Delayed coke product tons produced
5027 Distillation - crude 89 Crude oil 1000 barrels
5032 Distillation - vacuum 339 Vacuum distillation feed 1000 barrels
5028 Distillation - other 239 Feedstock 1000 barrels
5034 Flexicoking 346 Coker fresh feed 1000 barrels fresh feed
5007 Fluid cat cracker 344 FCC fresh feed 1000 barrels fresh feed
5008 Fluid coking - cooling 345 Fluid coke product tons produced
5009 Fluid coking - general 346 Coker fresh feed 1000 barrels fresh feed
5010 Fluid coking - storage 345 Fluid coke product tons produced
5011 Fluid coking - transportation 345 Fluid coke product tons produced
5021 Hydrocracking 239 Feedstock 1000 barrels
5026 Hydrogen manufacturing 50 C1-C2 paraffins million cubic feet
5026 Hydrogen manufacturing 52 C3+ paraffins 1000 barrels feed
5026 Hydrogen manufacturing 188 Naphtha 1000 barrels feed
5022 Hydrotreating/hydrofining 239 Feedstock 1000 barrels
5031 Isomerization 52 C3+ paraffins 1000 barrels feed
5039 Marine loading/unloading berths 80 Coke tons
5017 Oil-water separator 300 Waste water 1000 barrels
5017 Oil-water separator 427 Process water 1000 gallons
5024 Polymerization 195 Hydrocarbons - olefinic 1000 barrels feed
5012 Process drain - w/controls 442 Waste water - sour 1000 barrels
5012 Process drain - w/controls 300 Waste water 1000 barrels
5013 Process drain - w/o controls 442 Waste water - sour 1000 barrels
5013 Process drain - w/o controls 300 Waste water 1000 barrels
5017 Separator - oil/water 300 Waste water 1000 barrels
5017 Separator - oil/water 427 Process water 1000 gallons
5014 Sludge converter 347 Sludge tons produced
5029 Solvent extraction *** (use specific Materials Code)
5037 Sour water stripping 442 Waste water - sour 1000 barrels
5035 Sulfur removal - other/caustic 238 Refinery fuel gas million cubic feet
5019 Thermal cracking 446 Thermal cracker fresh feed 1000 barrels feed
5020 Thermal processing - other 446 Thermal cracker fresh feed 1000 barrels feed
5032 Vacuum distillation 339 Vacuum distillation feed 1000 barrels
5015 Vacuum jet - w/ controls 339 Vacuum distillation feed 1000 barrels
5016 Vacuum jet - w/o controls 339 Vacuum distillation feed 1000 barrels
5033 Wastewater storage - ponds 300 Waste water 1000 gallons
5036 Wastewater storage - tanks 300 Waste water 1000 gallons
5993 Other/not specified 80 Coke tons
5994 Other/not specified 89 Crude oil 1000 barrels
5995 Other/not specified 239 Feedstock 1000 barrels feed
5997 Other/not specified 339 Vacuum distillation feed 1000 barrels
5998 Other/not specified 338 Waste gases million cubic feet
5999 Other/not specified 321 Other petroleum products 1000 gallons
NOTE: Each process listed in Table G-5 has a specific material associated with it for use on the G-Form.
*Code 340 for crude oil for these processes must be used; emissions are dependent on total refinery
capacity rather than on throughput. Use code 89 for crude oil in any other process.
10/08
TABLE G-7
CHEMICAL PROCESSES
7019 Air blow ml brine
7020 Ammoniating
7016 Ammonium sulfate mfg - NH
3
/H
2
SO
4
proc
7018 Ammonium sulfate mfg - coke oven byprdcts
7131 Biological oxidation
7021 Bodying oil
7022 Boiling tub
7023 Brine evaporation
7096 Calcining - rotary kiln
7024 Calcining - other
7030 Carbon black manufacturing - other process
7132 Carbon dioxide liquifaction plant
7031 Carpet operation
7032 Caulking
7998 Chemical reaction - other/not specified
7173 Chemical reactor – greater than 1000 gallons
7073 Chemical reactor - other/not specified
7055 Claus - modified 2 stage
7056 Claus - modified 3 stage
7057 Claus - modified 4 stage
7033 Condensing
7155 Contaminated ground water stripping
7156 Contaminated soil remediation
7034 Cooking
7035 Creosote pressure treating
7114 Crystallizing
7036 Cyclohex - general
7151 Dipping/cleaning tank
7037 Distillation
7133 Etching
7038 Ethylene dichloride mfg - direct chlorination
7039 Ethylene dichloride mfg - oxychlorination
7023 Evaporation - brine
7110 Evaporation - other
7040 Fabrics manufacturing - bleaching
7041 Fabrics manufacturing - yarn prep
7042 Fabrics manufacturing - other/not specified
7152 Feed/holding tank
7158 Gas collection system
7044 Gas purging
7046 Gypsum pond
7130 Hydrochloric acid manufacturing
7148 Hydrochloric acid regeneration
7043 Injection – NOx control system
7144 Laboratory
7145 Landfill with gas collection system
7159 Landfill without gas collection system
7132 Liquifaction - CO2 plant
7053 Liquifaction - diaphragm
7054 Liquifaction - merc cell
7055 Mod-Claus 2 stage
7056 Mod-Claus 3 stage
7057 Mod-Claus 4 stage
7097 Neutralizing
7062 Nitration reactors
7051 Nitric acid - paraxylen gen
7052 Nitric acid concentrators
7063 Nitric acid mfg - ammonia oxid new
7064 Nitric acid mfg - ammonia oxid old
7131 Oxidation, biological
7065 Phosphoric acid manufacturing - thermal
7066 Phosphoric acid manufacturing - wet process
7147 Phosphoric acid manufacturing - other
7154 Photographic equipment
7067 Pressure treating - other
7068 Prilling
7153 Process tank
7071 Pulpboard manufacturing
7072 Pyrolysis
7073 Reactor - other/not specified
7074 Regenerator
7075 Rubberized fabric mfg - hot melt coating
7076 Rubberized fabric mfg - impregnation
7077 Rubberized fabric mfg - wet coating
7078 Rubberized fabric mfg - other/not spec
7080 Scrubber
7081 Seelite exhaust
7160 Separating – DAF processing
7103 Separating - oil/water
7098 Separating - other
7290 Sewage - Digesters
7270 Sewage - Disinfection
7230 Sewage - Flow equalization
7210 Sewage - Preliminary treatment
7220 Sewage - Primary treatment
7300 Sewage - Reclamation
7250 Sewage - Secondary clarifiers
7240 Sewage - Secondary treatment
7280 Sewage - Sludge handling processes
7260 Sewage - Tertiary treatment
7200 Sewage - Wastewater treatment plant
7058 Sodium carbonate Solvay - NH3 recovery
7059 Sodium carbonate Solvay - handling
7060 Sodium carbonate Trona - calcining
7061 Sodium carbonate Trona - dryer
7146 Sterilization - medical equipment
7089 Sulfate pulping - other/not specified
7082 Sulfate pulping - blow tank accumulator
7083 Sulfate pulping - fluidbed calciner
7084 Sulfate pulping - liquor oxidation tower
7085 Sulfate pulping - mult-effect evaporation
7086 Sulfate pulping - smelt dissolv tank
7087 Sulfate pulping - turpentine condenser
7088 Sulfate pulping - washer/screen
7090 Sulfite pulping - digester
7091 Sulfite pulping - evaporator
7092 Sulfite pulping - liquor recovery
7093 Sulfite pulping - pulp digester
7094 Sulfite pulping - smelt tank
7095 Sulfite pulping - other/not specified
7047 Sulfuric acid mfg - chamber process
7048 Sulfuric acid mfg - contact process
7050 Sulfuric acid mfg - other/not specified
7049 Sulfuric acid regenerators
7157 Tank/drum/container cleaning
7073 Other chemical - reactor
7998 Other chemical reaction - other/not spec
7999 Other process/not specified
7353 Sub Slab Depressurization
10/08
TABLE G-8
MISCELLANEOUS PROCESSES
DRYING (Dehydration/Kilns/Dryers/Ovens)
7006 Natural gas dehydrating
7002 Pigment drying
7003 Spray drying
7004 Veneer drying
7005 Drying - other/not specified
MATERIAL HANDLING
7116 Bagging/packaging
8007 Coke storage pile
7007 Drying
7045 Granulating
7008 Grinding
7009 Loading - storage tank
7010 Loading - tank car
7108 Milling
7011 Mixing
7115 Pelletizing
7017 Pumping facility - organic liquids
7012 Sanding
7014 Storage
7013 Material handling - other/not spec
MISCELLANEOUS
7109 Abrasives blasting
7109 Cleaning - abrasives blasting
8001 Coating operation - powder, other non-
solvent
8010 Conveying
7164 Composting - windows
7165 Composting - aerated static piles
7166 Composting - in-vessel
7105 Cooling - pond
7104 Cooling - tower
7106 Cooling - other
8011 Crematory retort
8003 Expanders - plastics, other
8004 Extruders - plastics, other
7045 Granulating
7143 Insulation stripping - wire
7143 Laser-stripping - wire insulation
7170 Latex dipping
8005 Material working equipment - plastics,
other
7111 Molding/curing - plastics
7112 Molding/curing - rubber
7113 Molding/curing - other/not specified
8002 Oven
8006 Paper/paperboard handling equipment
7109 Sand blasting
7079 Sawmill operation
8008 Screening/Separating
8009 Shredding/Mangling/Cutting
8012 Waste material grinding
7161 Wastewater – industrial storage ponds
7143 Wire insulation stripping - laser
7107 Woodworking - other/not specified
8999 Other process - not specified
TABLE G-9
FUGITIVE EMISSION SOURCES
FUGITIVE EMISSIONS
9000 Combined fugitive emission sources
9010 Refinery flaring/blowdown
9070 Refinery pressure relief valves
9080 Refinery process drains
9040 Refinery process vessels
9060 Refinery pumps/compressors
9030 Refinery vacuum products
9050 Refinery valves/flanges