Spreadsheet: 0c8f35be-4bb1-4d1c-9843-f55054797465
Sheet: Sheet1

Calculation Spreadsheet  for :  [NAME] (soybean/corn based) AND FEED MILLS - as of 2/96 | Unnamed: 1 | Unnamed: 2 | Unnamed: 3 | Unnamed: 4 | Unnamed: 5 | Unnamed: 6 | Unnamed: 7 | Unnamed: 8 | Unnamed: 9 | Unnamed: 10 | Unnamed: 11 | Page 1 of 3
 |  | - emission factors are devired from the AP-42 11/95 Interim Section on Grain Elevators and Processes.
In North Carolina, most of the grain handled is soybean and corn.   Therefore this table has been converted from the [NAME] table for wheat. |  |  |  |  |  |  |  |  |  |  |  | Table v.2  by [NAME] on 2-11-96
*** Many mills have high eff. triple cyclones; default to standard unless specified.
 |  | FACILITY : | [NAME] |  |  |  | Facility ID#: | 0#/##/000##
 |  |  | Type: (actual or potential) : | Actual | -  - Emission Factors are lbs per ton of corn/soybean processed* -  - |  |  |  |  |  | Actual | Actual
Elevator Operations : |  |  |  | Grain handled | TSP | One minus Control |  | PM-10 | One minus Control |  | PM | PM-10
 |  |  |  | (tpy) | Uncontrolled | Effeciency |  | Uncontrolled | Effeciency |  | (tpy) | (tpy)
 | Unloading (receiving)
dvr. 11/95 |  | General (dump end) |  | 0 | 1.5 | 1 |  | 0.375 | 1 |  | 0 | 0
11/95 |  | [NAME] Bottom Dump Pit | a | 0 | 0.15 | 1 |  | 0.0375 | 1 |  | 0 | 0
11/95 |  | [NAME] Bottom Dump Pit | a | 0 | 0.15 | 1 |  | 0.0375 | 1 |  | 0 | 0
 | Cleaning
11/95 |  | Grain Cleaning | b | 0 | 2.05 | 1 |  | 0.5125 | 1 |  | 0 | 0
 | Drying
11/95 |  | Column |  | 0 | 0.22 | 1 |  | 0.055 | 1 |  | 0 | 0
11/95 |  | Rack |  | 0 | 3 | 1 |  | 0.75 | 1 |  | 0 | 0
 | Internal operations |  | c
11/95 |  | belts, grain cleaner, headhouse |  | 0 | 0.825 | 1 |  | 0.2062 | 1 |  | 0 | 0
 |  | closed-loop system - w/o grn clean |  | 0 | 0 | 1 |  | 0 | 1 |  | 0 | 0
 | [NAME] (vents)
11/95 |  | General (handled twice) | d,h | 0 | 0.05 | 1 |  | 0.0125 | 1 |  | 0 | 0
 | Loadout (shipping)
11/95 |  | Truck or Rail |  | 0 | 0.0275 | 1 |  | 0.006875 | 1 |  | 0 | 0
Feed Mill Operations :
 |  |  |  |  | -  -   Emission Factors are lbs per ton of grain processed  -  - |  |  |  |  |  | EPA: Use Inherent (thus c.e)
 | Hammermill |  | g |  | before cntrl | inherent cntrl |  | before cntrl | inherent cntrl
11/95 |  | Cyclone (corn, soybean, wheat) | e | 0 | 0.9 | 0.12 |  | 0.45 | 0.06 |  | 0 | 0
11/95 |  | Baghouse (mixed) | ef | 0 | 0.9 | 0.009000000000000001 |  | 0.45 | 0.009000000000000001 |  | 0 | 0
 | Pellet Coolers |  | g
11/95 |  | Cyclone - Standard Eff. | e | 0 | 6.45 | 0.43 |  | 3.225 | 0.22 |  | 0 | 0
11/95 |  | Cyclone - Hig Eff. | e | 0 | 6.45 | 0.14 |  | 3.225 | 0.07 |  | 0 | 0
 |  |  |  |  |  |  |  |  |  | TOTAL : | 0 | 0
GRAIN (soybean/corn based) AND FEED MILLS - as of 2/96 |  |  |  |  |  |  |  |  |  |  |  | Page 2 of 3
 |  |  |  |  |  |  |  |  |  |  |  | Table v.2 by [NAME] on 2-11-96
Emission Factors in this table are based on the 11/95 Interim Section of AP-42.
This Table is in draft form and should not be cited or distributed outside of DEM.
A final version of this Table should be complete by Feb 1996.
Example calculation contained in this original spreadsheet :   N.C. Feed Mill producing pellet feed for chicken, turkey, hogs :
***Example Calculation:    Assume 60% corn & 40% soyb meal /other; 10% dump end, 40% choke fed truck, 50% rail, local corn 5% cleaned &  2% dried, closed loop system, all corn ground
*** and all pellet feed.   Assumptions also include all material is a dusty as corn;  option to consider the amount of  soybean meal , mixed grains, nutrients, etc.
Notes and Footnotes
* | The values in this table  are for soybean and corn.
 | The original emission factors from  [NAME] are based on wheat as the grain processed or handled.
 | To determine e.f. for other grains, multiply the factor for the relative dustiness:
 |  | soybeans | 2.5
 |  | Corn | 2.5
 |  | milo(sorghum) | 1.75
 |  | mixed | 1.95
 |  | wheat | 1
 |  | oats, barley, rice - to be determined
** | Control Efficiencies on operations should be given where appropriately documented.    Engineering calculations of air pollution
 | control equipment should be calculated carefully.
 | Other methods such as paritial enclosures, socks, and oil sprays should be evaluated and an appropriate control efficiency should be given.
 |  | - Multi-sided enclosure   : | DEM has historically given 10% c.e.for multi-sided enclosures.    This number needs to be re-evaluated.
 |  | - Loadout tubes, socks, extensions    : | Value ??
 |  | - Oil Addition/Spray    : | EPA is re-evaluating this operation.   Based on this information, use 50% c.e. until final data available.       AP-42 states mineral oil
 |  |  | dust supression for transfer of corn (using typical conditions and 25 psi oil spray pressure)  reduced PM by 69% and PM-10 by 48%.
 |  |  | Do not use the internal dust control of 80-90% for loading operations.   AQS policy plan  is to use 50% for both PM-10 and TSP.
a | -based on DEM conversation and phone conversation with Dallas Safriet of EPA in Dec 95, these values were concluded  to be for
 | choke-fed hopper bottom - - therefore 90% control/reduction was removed for not hopper-bottom/choke-fed.
b | -grain cleaning emissions factors were taken from the discussion in the 11/95 Interim Section which was comprised of 6 mixed
 | grain data points at five country elevators.   Values were adjusted to soyb/corn (2.5 * 1.6/1.95).  PM-10 was estimated using EPA's 25% of PM.
c | -internal operations refer to calculations for tunnel and gallery belts,  grain cleaner, and headhouse.    Except for the grain drying,
 | these are for the open systems.   Closed loop systems would not include this number.
 |  |  |  |  |  |  |  |  |  |  |  | Page 3 of 3
 |  |  |  |  |  |  |  |  |  |  |  | Table v.2 by [NAME] on 2-11-96
d | -emissions should be calculated for all [NAME] vents.   Actual is based on the total grain/product received (or shipped).   For Title V purposes, use EPA's 5-yr maximum for the potential
 | to emit for the country grain elevator.    Potenital would be based on the feed mill's maximum capacity of the elevator leg or the facility's bottleneck such as the batching operation.
 | Note for calculation purposes only, Soybean/Corn values :          Any grain elevator or feed mill with a bottleneck with a rated capacity of
 |  | 22.83 tons/hr  (or 815.4 bu/hr) would have a potential PM emission from a bin vent or combination of bin vents, of  5 tons PM.
e | [NAME] 11/95 established controlled rates for hammermill and pellet cooler operations.   DEM determined uncontrolled rates based efficiencies
 | on a more worst case particulate loading assuming 90% and 95% control  efficiencies and using the EPA assumption of PM-10 is 50% of PM.
 | Documentation needs to be provided by facility of the type of efficiency (standard, high) and the control efficiency value.
 | Many facilities have source tested, and these values must be used instead of the AP-42 values.
 |  |  |  |  | [ (ef / .1) + (ef / .05)] / 2 = uncontrolled particulate rate
 |  | Hammermill (w/ cyclone) |  |  | [ .12 /.1) +  (.12/.05)] / 2 =
 |  |  |  |  | [1.2 + 2.4] / 2 |  |  | uncontrolled PM | 0.45 | PM-10
 |  | Pellet [NAME] (w/ standard cyclone) |  |  | [ .43 /.1) +  (.43/.05)] / 2 =
 |  |  |  |  | [4.3 + 8.6] / 2 |  |  | uncontrolled PM | 3.225 | PM-10
 |  | [Compared to the EPA uncontrolled rate of 24 lbs per ton, this  calculated uncontrolled number of 6.45 is similar to the stack test values
 |  | from Golden Poultry / Gold Kist (4.93 lbs/ton).]
f | - EPA assumed all emissions from baghouse on hammermill would be PM-10.
g | - EPA stated in the 14 Nov 95 Seitz Memo that EPA's general PTE policy considers the effects of control measures (i) subject to
 |  | enforceable limits or (ii) inherent to the operation.    An example of "inherent" was the product recovery cyclones associated
 |  | with operations such as pellet cooling at feed mills.
h | - Am. Feed Industry Assoc. explained (11-95) that all grain is vented at least once, with corn transferred at least twice.   There estimate was 1.6 times for venting.
 |  | This spreadsheet uses 2.0 times for worse case.
Potential to Emit for Feed Mills
 |  | Potential to emit at feed mills will vary by facility depending on their bottleneck.
 |  | Possiblities include: capacity of the receiving area or loadout area,  capacity of the elevator leg,
 |  | and/or the capacity of the batch mixing operation.   [this latter is most likely for 24hr per day feed mills]
Potential to Emit for Country Grain Elevators
 |  | See EPA Nov 95 - PTE Guidance.   Basically, PTE equal the historical 5 year [NAME] actual * 1.2 growth factor.
Notes :
 |  | notes