GRAIN ELEVATOR AND PROCESSOR NSPS INDUSTRY SURVEY 

INTRODUCTION AND GENERAL INSTRUCTIONS 

This survey form is to be completed by a respondent for each of its wholly owned facilities as described in the 

following four paragraphs (A-D), using the definitions at the end of this introductory section. Respondents must 

meet the requirements of paragraphs A, B, and C. 

A. This survey is limited to the following facilities: any “grain elevator” that would constitute a “grain 

terminal elevator” or a “grain storage elevator” (as those terms are defined by Subpart DD (40 CFR 

60.301)) if only permanent storage or both permanent and temporary storage at the grain elevator are 

taken into account. A respondent need not provide data for any facility not possessing this type of 

grain elevator. 

B. EPA is interested in obtaining information about the following categories of grain elevators: 

(1) Country grain elevators with storage capacity^ ≥ 2,500,000 bushels 

(2) Other stand-alone elevators with storage capacity^ ≥ 2,500,000 bushels 

(3) Wheat flour mill elevators *

(4) Wet corn mill elevators*

(5) Dry corn mill (human consumption) elevators*

(6) Rice mill elevators*

(7) Soybean oil extraction elevators* 

^”Storage capacity” may include only permanent storage capacity, or it may include both permanent and temporary 

storage capacity. 

*Grain elevators in categories 3-7 above must have storage capacity of ≥ 1,000,000 bushels. 

For each of the above seven categories, a respondent must submit a response for at least five 

facilities under its control. If a respondent has less than five facilities in a particular category, the 

respondent must provide information for all of its facilities in that category. 
C. EPA is also interested in obtaining information about the following types of facilities: 

 Grain elevators located in each EPA Region. 

 Five storage combinations: 

- Grain elevator alone 

- Grain elevator w/emergency storage 

- Grain elevator w/temporary storage 

- Grain elevator w/emergency and temporary storage 

- Grain elevator w/barge unloading 

 Facilities handling multiple grains. 

 Facilities handling only one grain. 

A respondent must submit a response for each of the facilities listed below to the extent it has any such 

facility under its control for each of the 7 categories listed in paragraph B: 

 At least one facility in each Region; 

 At least one facility with each of the grain storage combinations; 

 At least one facility that handles multiple grains; and 

 At least one facility that handles only one grain. 

For example, if a respondent has 18 facilities in the country grain elevator category, and 10 are in EPA 

Region 5 and eight are in EPA Region 6, the respondent shall provide information for a minimum of five 

grain elevators. At least one elevator must be in Region 5 and one in Region 6. In addition, if 

applicable, the respondent shall provide information on at least one facility with each of the five grain 

storage combinations. The respondent must also provide information for at least one facility that 

handles multiple grains and one that handles only one grain. In this example, assuming the respondent 

owned each of the different types of grain elevators of interest to EPA, it is possible to meet the EPA 

requirements with five facilities responding if the five chosen facilities can meet multiple requirements 

(e.g., handling multiple grains in EPA Region 5 and using each of the 5 storage methods). However, it 

may be necessary to provided additional facility responses to meet the EPA requirements if facilities 

cannot meet multiple EPA requirements. 

D. The total number of facilities for a respondent may exceed 35 (five facilities in each of the seven 

categories) when including the regional, combination, and grain information. However, no respondent 

is required to submit information about more than 51 facilities. 

 

Since one of the goals of this survey is to gather data on temporary storage facilities, EPA encourages 

respondents to exercise any discretion afforded by paragraphs A-D above in favor of submitting data on such 

facilities. For the same reason, EPA encourages respondents to include along with their required responses to 

this survey any supplemental data on such facilities that may go beyond the bounds of this survey but 

nevertheless would be helpful to EPA in understanding temporary storage facilities fully from the standpoint of 

Subpart DD. 

This survey is provided in paper format and by first-class mail. However, you may opt to complete this survey 

either in paper format or in electronic format. To obtain an electronic file (in Microsoft Word) to compile your 

responses, please contact Bill Schrock at schrock.bill@epa.gov. Please submit complete responses to Bill 

Schrock within 60 days after receipt by first-class mail. Any request for an extension of that 60-day period 

must be submitted to Bill Schrock within 30 days after receipt by first-class mail. Extensions will not be granted 

except upon a showing of undue hardship and then only for the minimum time reasonably necessary. 

It is important to note that, throughout this document, we have used the terms “permanent storage,” “temporary 

storage” and “emergency storage” to differentiate between those structures typically constructed of concrete 

and topped with metal roofs and the pyramid shaped storage units typically with low concrete walls and a vinyl 

top. The use of the terms “permanent storage” and “temporary storage” is strictly to reflect the current 
receipt by first-class mail. Any request for an extension of that 60-day period must be submitted 

to Bill Schrock within 30 days after receipt by first-class mail. Extensions will not be granted 

except upon a showing of undue hardship and then only for the minimum time reasonably 

necessary. 

It is important to note that, throughout this document, we have used the terms “permanent 

storage,” “temporary storage” and “emergency storage” to differentiate between those structures 

typically constructed of concrete and topped with metal roofs and the pyramid shaped storage 

units typically with low concrete walls and a vinyl top. The use of the terms “permanent storage” 

and “temporary storage” is strictly to reflect the current terminologies used in industry as defined 

by the U.S. Department of Agriculture (USDA) and in no way represents any EPA decision as to 

how these units will be treated in any subsequent action. See definitions section for a list of 

terms used in this survey. 

In addition to the items listed in the survey forms that follow this introduction, we are also 

requesting copies of the following information to the extent it relates to grain elevators or 

portions of processing plants that consist of grain elevators: 

1. Your current air quality operating permit, if you have one. 

2. Copies of the most recent results from PM/PM10 emissions testing conducted at your 

facility within the last 3 years, including but not limited to, opacity measurements and 

stack testing. No new testing is required for this survey. 

Following is a summary of the forms that comprise this survey: 

Form A General Form. One should be completed for each facility. 

Form B Storage Information. Please complete for storage units at each facility. 

Form C Receiving and Shipping. Complete for shipping/receiving units at each facility. 

Form D Temporary Storage. Please complete one form for each temporary storage area. 

Form E Emergency Storage. Complete one form for each emergency storage area. 

Form F Grain Dryers. Please complete one form for fuels used for grain dryers. 

Form G Permitted Sources. Please complete if any part of your facility is covered under 

an air quality operating permit. 

Form H Work Practices. Please complete if any part of your grain elevator or processing 

facility uses work practices for grain storage, shipping, and receiving operations. 

Form I Add-on Particulate Controls. Please complete for each add-on particulate 

control. 

 
Definitions (in addition to those in Subpart DD): 

Storage Unit – For the purposes of this survey, a storage unit is any building, bin, silo, or pile used to 

store corn, wheat, sorghum, rice, rye, oats, barley or soybeans. 

Permanent Storage – A storage unit with an immovable roof; a floor made of concrete, asphalt or 

similar material; and sidewalls made of steel, concrete or similar material. 

Temporary Storage – A storage unit that is comprised of: asphalt, concrete, or other comparable base 

material; rigid self-supporting sidewalls; a tarp, cover or the equivalent; and an aeration system. 

Emergency Storage – A form of storage other than permanent storage or temporary storage. 

Country Elevator – Any grain elevator where more than 50% of grain is received from farms. 

Other Stand-Alone Elevator – Any grain elevator where less than 50% of grain is received from farms 

AND grain processing is not the primary activity. 

Grain Processing – Equipment or processes used to alter the natural state of grain by fractioning, 

grinding, blending, conditioning, etc., in order to produce a product for human or animal consumption or 

the production of biofuels. 

Shipping Units – All equipment associated with loading grain from a storage unit. 

Receiving Units – All equipment associated with loading grain into a storage unit. 

Design or Work Practice – Any technique other than the installation of air pollution control equipment 

for the reduction of particulate matter emissions. 
FORM A Page 1 

Grain Elevator Survey

FORM A – General Information

A-1 Facility Name: 

A-2 (a) Facility Street Address: 

(b) Suite or P.O (specify): (c) City: 

(d) State: (e) Zip Code: (f) County: 

A-3 (a) Facility Manager: (b) Phone: 

A-4 (a) Technical contact (for information on this survey): 

(b) Title: (c) Telephone Number: 

(d) Email Address: 

A-5 Number of full-time employees at this location (total for all shifts): 

A-6 Number of seasonal employees at this location (total for all shifts): 

A-7 (a) Parent Company/ Co-Op: 

 (b) Is this a co-op? (check one) Yes No 

(c) Parent Company/ Co-Op Main Office Street Address: 

 

(d) Suite or P.O. (specify): (e) City: 

(f) State: (g) Zip Code: 

A-8 Number of full-time employees within all business units of the Parent Company: 

 (please check one): < 100 101- 249 250- 499 > 500 

A-9 Number of seasonal employees within all business units of the Parent Company 

 (please check one): < 100 101- 249 250- 499 > 500 

FACILITY ID: 

FACID:

(First 4 letters of company name plus first 

4 letters of city name. If not unique 

identifier, add number at end of ID) 

ARCHROGE ADM-Benson Quinn 100 Elevator Avenue P.O. Box 188 Rogers ND 58479 Barnes Cris Breidenbach 701-646-6000 Cris Breidenbach Manager 701-646-6000 cris.breidenbach@adm.com 153

Archer Daniels Midland ■

4666 Fairies Parkway

Decatur IL 62526 ■

■
FORM B - Storage Information 

(B-1) FACID: 

FORM B Page 1 

B-2 In what year was this facility first constructed? 

B-3 Total number of storage units: (a) "permanent" storage 

 (b) "temporary" storage 

 (c) "emergency" storage 

[Note: In completing the remainder of the survey, you will be able to group information for similar 

storage units. See B-4 for example.]

B-4 Please provide an overview flow diagram (or block flow diagram) of the grain elevator(s) at 

your facility. Please include permanent (P), temporary (T), and emergency (E) storage units, 

associated receiving (R) and shipping (S) units, and grain dryers (D). 

o Permanent Storage ID: use your current designation or assign a numerical value. If assigning 

an ID, please use “P-1, P-2, etc” format. You may group multiple storage units into one 

permanent storage ID; if not readily apparent, please provide explanations on the back of this 

sheet or indicate in your elevator diagram. 

o Temporary Storage ID: use your current designation or assign a numerical value. If assigning 

a new ID, please use “T-1, T-2” format. 

o Emergency Storage ID: use your current designation or assign a numerical value. If assigning 

a new ID, please use “E-1, E-2” format. 

o Receiving Units ID: use your current designation or assign a numerical value. If assigning an 

ID, please use “R-1, R-2” format. 

o Shipping Units ID: use your current designation or assign a numerical value. If assigning an 

ID, please use “S-1, S-2” format. 

o Grain Dryer ID: use your current designation or assign a numerical value. If assigning an ID, 

please use “D-1, D-2” format. 

o Capacity: please provide capacity in bushels. Do not use a pack factor. 

ARCHROGE 1954 6

1

0
FORM B 

Please check one: This page includes CBI □ This page does NOT include CBI [If no box is checked, EPA will assume that the page does NOT contain CBI]

FORM B – Storage Information 

(B-1) FACID: B-5. Please complete the following table for storage information. An example is provided. 

2005 2006 

Storage Type 

(P, T, E) 

Storage 

ID 

Year First 

Used 

Storage 

Capacity 

(Bushels)2

Grain 

Stored1 Through-put (actual bushels)2 Weeks per year utilized Through-put (actual bushels)2 Weeks per year utilized T

(ac

Corn 100,000 2 P - example P-1 1970 300,000 

Wheat 400,000 

50 

300,000 50 

P - example P-2 1985 400,000 Corn 400,000 52 400,000 50 

T - example T-1 2004 450,000 Corn 200,000 22 250,000 20 

1 Use grain designations: corn, wheat, sorghum, rice, rye, oats, barley, soybeans, or specify a different grain. 2 Storage capacity and throughput refer to the aggregated storage capacity and throughput of the units included in th

temporary and emergency storage units, storage capacity and throughput may be estimated based on operator’s knavailable. For permanent storage units, throughput may be estimated based on operator’s knowledge if actual data 

ARCHROGE PPP P-1 1956 41,934 Wheat 80,000 51 80,000 51 

P-2 1971 46,918 Wheat 46,918 51 46,918 51 P-3 1994 171,510 CN, SB, SW 500,000 51 500,000 51 

P P-4 2002 348,541 CN, SB, SW 3,000,000 51 3,000,000 51 P P-5 2004 607,843 CN, SB, SW 5,076,000 51 5,861,000 51 P P-6 2007 1,170,594 CN, SB, SW 0 0 0 0 

T T-1 2007 1,031,394 Corn 0 0 0 0 
FORM C 

Please check one: This page includes CBI □ This page does NOT include CBI [If no box is checked, EPA will assume that the page does NOT contain CBI]

FORM C – Receiving and Shipping Information 

(C-1) FACID: C-2 Please complete the following table for receiving and shipping operations at each storage unit (or grou

Storage, Shipping, and Receiving ID’s provided in B-4. An example is provided. 

What is the Maximum Loading Receiving/ Rate? 

Shipping 

ID 

Storage ID 

associated with 

receiving/ 

shipping unit 

How is Grain Received Into or 

Shipped (Loaded) Out of 

Storage?a Value Units 

Are there any add

on controls for th

receiving/ 

shipping unit (Y/N

R-1 P1 Fixed Conveyor Belt 

S-1 P1 Fixed Conveyor Belt 

R-1 T1 Portable Auger 

aLoading and unloading methods include: 

 portable auger  fixed receiving pit with leg to aeration tower  enmass drag conve

 portable inclined belt  fixed conveyor off main complex  pneumatic unloader  gravity fill spout  portable conveyor with trucks  or specify a differen front-end loader  marine leg  fixed drag conveyor  track hoe/clamshell unloader  fixed conveyor belt  continuous barge unloader bQualitative methods include opacity measurements as well as monitoring instruments (e.g. CEMS), and mon

indicate whether the air pollution control device is operating properly. 

ARCHROGE R-1 P1,P2,P3,P4,P5,P6,T1 fixed receiving pit with leg 10,000 BU/Hr Y 

R-2 P1,P2,P3,P4,P5,P6,T1 fixed drag conveyor 20,000 BU/Hr Y 

S1 P1,P2,P3,P4,P5,P6 4 fixed legs 55,000 BU/Hr Y S2 T1 front-end loader 8,000 BU/Hr Y 
FORM D – “Temporary” Storage 

(D-1) FACID: (D-2) Temporary Storage ID: 

FORM D Page 1 

 (Please copy this sheet and complete a separate sheet for each 

temporary storage at your facility) 

D-3 Please provide a diagram of each storage unit and indicate which pieces of equipment (e.g., 

walls, cover, floor, conveyance system, generator, housing for electrical, etc) remain in place 

year round and which are removed during specific times of the year. If this system is identical 

(or nearly identical) to another temporary system at the same facility, only one diagram is 

needed. Please include all applicable ID numbers on the diagram and explain any differences 

below. 

D-4 What are the materials of construction for this storage unit? 

(a) Walls: 

 (b) Cover/tarp: 

 (c) Floor: 

D-5 (a) Has the cover/tarp ever been replaced? (check one) Y N 

 (b) If yes, month(s)/year(s) cover/tarp was used before being replaced: 

ARCHROGE T-1

Round Bunker 280 feet diameter, feed by 20,000 enclosed belt conveyor, dispersed by ladder mechanism to 

control dust.

Concrete Poly

■

Asphalt

5 months
FORM D – “Temporary” Storage 

(D-1) FACID: (D-2) Temporary Storage ID: 

FORM D Page 2 

D-6 Describe the routine maintenance (including repair and replacement) that is conducted on the 

temporary storage units, including frequency of these activities. If you typically replace a 

component of a unit (e.g., replacement of a tarp/cover in sections, as opposed to entire 

replacement), indicate frequency and typical percent of the entire unit that is replaced. 

Walls: 

 Floors: 

Cover/Tarp: 

Aeration: 

Other equipment associated with storage (e.g., conveying equipment) 

D-7 Describe methods used to reduce particulate emissions during receiving and shipping, 

aeration (or other similar processes), and general storage. Indicate frequencies of any actions. 

(Please complete Form I for any add-on pollution control device).

ARCHROGE T-1

Cleaned each year Cleaned each year Purchased new each year Rescreened each year

Conveying equipment greased weekly and drive oil changed yearly.

Receiving is choke fed ladder system so grain flows instead of spilling into place. 

Loading is with front end loader. No stream for wind to catch. Most particulates can stay in truck.
FORM E – “Emergency” Storage 

(E-1) FACID: (E-2) Emergency Storage ID: 

FORM E Page 1

E- 3 Explain any approaches taken to minimize particulate emissions from the emergency storage 

pile. Indicate frequencies of any actions. 

ARCHROGE N/A
FORM F – Grain Dryers 

(F-1) FACID: 

 

FORM F Page 1 

F- Please complete the following table for grain dryers used at your facility. Use the Dryer, 

Storage, Shipping, and Receiving ID’s provided in B-3. An example is provided. 

How much fuel was used 

Grain Dryer ID 

Storage/Receiving/Ship

ping units associated 

with Dryer Fuel Used1

2005 2006 2007 

D-1 P-1, P-2, R-1, S-1 FO2 10,000 10,000 8,000 

D-2 T-1 FO2 1,000 1,000 1,000 

 

 

 

 

 

1

 Select fuel from list below. If other, please specify. 

FO2 - #2 Fuel Oil (gallons) 

FO6 - #6 Fuel Oil (gallons) 

NG – Natural Gas (MM cubic feet) 

Bio – Biofuel (gallons) 

O – Other, please specify type of fuel and unit of measure 

F- For each column dryer at your facility that does not include a perforated column plate in its 

design, please: (1) describe the design of that dryer, including whether it uses woven wire 

screening; (2) indicate the grain(s) for which the dryer is used; and (3) provide the year of 

original installation. 

ARCHROGE D-1 P1,P2,P3,P4,P5,P6,T1 O- Propane (Gallons) 45,600 95,100 143,765

1) Drier is tower design with interior fans. Screens are perforated plate. 

2) Corn, Soybeans, Wheat 

3) Installed 2004
FORM G –Permitted Sources 

(G-1) FACID: 

FORM G Page 1 

G-2 Please indicate the total number of each component listed below that you have at this facility 

and the number for which your operating permit specifies an applicable control requirement. 

Component Total Number at Site 

Number for which your permit 

specifies a control requirement? 

Truck receiving station 

Truck shipping station 

Barge and ship receiving station 

Barge and ship shipping station 

Railcar receiving station 

Railcar shipping station 

Grain dryer 

 

 

G-3 Is any grain handling equipment subjected to a control requirement in your permit? 

 (check one) Y N 

As defined in NSPS, Subpart DD, grain handling operations include, as an assemblage of equipment, bucket elevators or 

legs (excluding legs used to unload barges or ships), scale hoppers and surge bins (garners), turn heads, scalpers, 

cleaners, trippers, and the headhouse and other such structures. 

For purposes of Form G, the term “control requirement” refers only to particulate matter (PM) 

emission limits specified for the particular “component” in question and expressed in terms of 

emissions per unit of time or production (e.g., lb of PM/hr; grains/dscf), opacity (e.g., 20%), or a 

design or work practice (e.g., use of enclosure), and not to restrictions on operational parameters 

such as hours, feedstock or throughput. 

ARCHROGE 2 1

2 0

0 0

0 0

0 0

1 1

1 1

■
FORM H – Work Practices 

(H-1) FACID: 

FORM H Page 1 

H-2 Describe the design or work practices you follow to reduce emissions (e.g, choke flow, louvered grates, 

mineral oil, etc.). Please describe the frequency the activity is used (e.g, during each loading operation, 

all the time, etc) and the estimated time spent on the activity per usage (e.g, 20 minutes per loading 

event). For “barge and ship receiving station,” please provide copies of any equivalency determinations 

under 40 CFR 60.302(d) and any permit conditions resulting from such determinations. 

Truck receiving station 

Truck shipping station 

Barge and ship receiving station 

Barge and ship shipping station 

Railcar receiving station 

Railcar shipping station 

Grain dryer 

Grain handling operationsa 

a

As defined in NSPS, Subpart DD, grain handling operations include, as an assemblage of equipment, bucket elevators or 

legs (excluding legs used to unload barges or ships), scale hoppers and surge bins (garners), turn heads, scalpers, 

cleaners, trippers, and the headhouse and other such structures. 

ARCHROGE

Choke flow receiving pits, louvered gates, pollution control equipment. Pollution control equipment on transferring equipment. Spout is place in truck to reduce exposed grain stream. Pollution control equipment on transferring equipment. Spout is place in car to reduce exposed grain stream. Pollution control equipment on transferring equipment. Pollution control equipment on transferring equipment.
FORM I – Add-on Pollution Control Device 

(I-1) FACID: FORM I If data are not available or unknown, please enter ND I-2 Please complete the following table for any air pollution control devices at your facility. Please provide I

diagram. For each unit, please provide the most recent performance data you have. An example is pro

Air Pollution Control 

Device ID 

Type of Control [e.g., fabric 

filter/baghouse; cyclone; 

other (specify)] 

Points controlled 

by this control 

(Use ID’s from 

Forms B, C, and 

D) 

Type of Data Available [e.g., 

performance test, manufacturer’s 

specs or guarantee, engineering 

calculations, other (specify)] 

Desig

Efficien

APCD-1 example Cyclone R-1, R-2 Manufacturer’s specifications 40% APCD-2 example Fabric Filter S-1 Manufacturer’s specifications 90% Make additional copies, as necessary 

ARCHROGE APCD-1 Bag House R-2, S-1 Manufacture's specifications 90% 

APCD-2 Bag House R1 Manufacture's specifications 90% 
FORM I – Add-on Pollution Control Device 

(I-1) FACID: 

FORM I  Page 2 

I-3. Provide a copy of the most recent performance test for each air pollution control device 

 If no performance tests are available, complete questions I-4 through I-7. 

I-4. Please complete for each control device listed in I-2. 

Inlet Flow Pressure Drop Inlet Temperature 

APCD ID Max Units Min Max Units Min Max o

C/oF 

 

I-5 For each cyclone, please complete the following table 

APCD ID Particle Density Units 

 

ARCHROGE APCD-1 16,300 CFM 3 3 in 63 81 F

APCD-2 17,600 CFM 1.2 1.2 in 50 55 F
FORM I – Add-on Pollution Control Device 

(I-1) FACID: 

FORM I  Page 3 

I-6. For each fabric filter/baghouse, please provide the following information. 

 

APCD ID Number of bags Total Surface Area Units 

 

I-7 For each control not listed in I-5 and I-6, please describe the technology and the parameters that 

are relevant for operation of the control 

ARCHROGE APCD-1 153 2204 sq/ft APCD-2 156 2030 sq/ft
ENCLOSURE 2 

EPA's Information Gathering Authority 

Under Section 114 of the Clean Air Act 

 Under Section 114 of the Act (42 U.S.C. 7414), Congress has given the U.S. Environmental Protection 

Agency broad authority to secure information needed for the purpose of (i) developing or assisting in the 

development of any implementation plan under Section 110 or 111(d), any standard of performance under 

Section 111, or any emission standard under Section 112; (ii) determining whether any person is in violation of 

any such standard of any requirement of such a plan; or (iii) carrying out any provision of this Act. Among 

other things, Section 114 authorizes EPA to make inspections, conduct tests, examine records, and require 

owners or operators of emission sources to submit information reasonably required for the purpose of 

developing such standards. In addition, the EPA Office of General Counsel has interpreted Section 114 to 

include authority to photograph or require submission of photographs of pertinent equipment, emissions, or 

both. 

 Under Section 114, EPA is empowered to obtain information described by that section even if you 

consider it to be confidential. You may, however, request that EPA treat such information as confidential. 

Information obtained under Section 114 and covered by such a request will ordinarily be released to the public 

only if EPA determines that the information is not entitled to confidential treatment.1

 Procedures to be used for 

making confidentiality determinations, substantive criteria to be used in such determinations, and special rules 

governing information obtained under Section 114 are set forth in 40 CFR Part 2 published in the Federal 

Register on September 1, 1976 (40 FR 36902). 

 Pursuant to § 2.204(a) of EPA's Freedom of Information Act (FOIA) regulation, in the event a request is 

received, or it is determined that a request is likely to be received, or EPA desires to determine whether 

business information in its possession is entitled to confidential treatment even though no request for release 

of the information has been received, please be advised that EPA will seek, at that time, the following 

information to support your claim as required by § 2.204(e)(4) of EPA's FOIA regulations: 

1. Measures taken by your company to guard against undesired disclosure of the information to others; 

2. The extent to which the information has been disclosed to others, and the precautions taken in 

connection therewith; 

3. Pertinent confidentiality determinations, if any, by EPA or other Federal agencies, and a copy of any 

such determinations, or reference to it, if available; and 

4. Whether your company asserts that disclosure of the information would be likely to result in substantial 

harmful effects on the business' competitive position, and if so, what those harmful effects would be, 

why they should be viewed as substantial, and an explanation of the causal relationship between 

disclosure and such harmful effects. 

 

 1Section 114 requires public availability of all emission data and authorizes disclosure of confidential information in 

certain circumstances. See 40 FR 36902 - 36912 (September 1, 1976). 

NORTH DAKOTA

DEPARTMENT of HEALTH

ENVIRONMENTAL HEALTH SECTION

Gold Seal Center, 918 E. Divide Ave.

Bismarck, ND 58501-1947

701.328.5200 (fax)

www.ndhealth.gov

May 19, 2008

MS. Beth A ..York

EnvironroentalSpecialist

ADM Grain Division

1001 N Brush College Road

Decatur, IL 62521

Re: Air Pollution Control

Permit to Operate No. G08002 .

Dear Ms. York:

The Dep~rtment issued a Permit to.Construct on October 9, 2006, to

ADM-Benson Quinn for a grain elevator located' in Rogers, North

Dakota. The facility was inspected by Department personnel on

May 6, 2008. A copy of the inspection report is enclosed for your

information - .,-, • and'.records, - ,'.,"', .-~,-.. --'- .~;.;. ': .". ,:, ";.1 :L.~'..•'.i:.-

Based. on the review of the permit application, the' Air Quality

Effects Analysis, the Permit to Construct, and the results of the

inspection conducted,.. the Department hereby issues Permi t to

Operate No. G08002 for the source. The Department's issuance of

the permit is contingent upon compliance with applicable sections

of the North Dakota Air pollution Control Rules as well as the

attached conditions. please review each condition carefully and

note the restrictions placed on the source.

If you have any questions, contact me at (701)328-5188 .

. I'

Sincerely,

"Cris, Breidenbach, ADM-Benson Quinn - -""'-

Benjamin Gress i:

Environmental Scientist

Division of Ai~QuaHtYi

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Environmental Health"

Section Chiefs Office

701.328.5150

Division of

Air Quality

701.328.5188

, Division of

Municipal Facilities

701.328.5211

Printed on recycled paper.

Division of

Waste Management

701.328.5166

Division of

Water Quality

701.328.5210
NORTH DAKOTA

DEPARTMENT of HEALTH

ENVIRONMENTAL HEALTH SECTION

Gold Seal Center, 918 E. Divide Ave.

Bismarck, NO 58501-1947

701.328.5200 (fax)

www.ndhealth.gov

AIR POLLUTION CONTROL

MINOR SOURCE

PERMIT ,TO OPERATE

•

Pursuant to Chapter 23-25 of. the North Dakota Century Code, and the Air

Pollution Control Rules of the State of North Dakota, and in reliance on

statements and representations heretofore made by the owner designated below,

a Permit to Operate is hereby issued authorizing such owner to operate the

source unit(s) at the location designated below. This Permit to Operate is

subject to all applicable rules and orders now or hereafter in effect of the

North Dakota Department of Health and to any conditions specified below:

Permittee:

A. Name:

ADM-Benson Quinn

1.

B. Address:

1001 N Brush College Road

Decatur, IL 62521

2. A.

B.

Permit Number: G08002

Renewal No.: 0

Revision No.: 0

Permit Description:

True Minor Source: NDAC

33-15-14-03

•

3 . Source Name « Location:

Elevator, Rogers, North Dakota

Barnes County

•

4. Source TYPe:

Grain Elevator Complex

5. Expiration Date:

May 15, 2013.

6. Source Unites):

A. One elevator complex including the following equipment:

One truck receiving pit.

One Dakota Model 888 grain cleaner.

One.rail loadout.

One Zimmerman VT51 grain dryer.

One Intersystems PC22000 gravity cleaner.

Combination of grain bin with a total permit storage capacity'

of approximately 2.9 million bushels.

Two baghouses labeled east and west that control emissions

from the receiving, cleaning and transfer of grain at the

facility.

1)

2)

3 )

4)

5)

6 )

7)

Environmental Health

Section Chiefs Office

701.328.5150

Division of

Air Quality

701.328.5188

Division of

Municipal Facilities

701:328.5211

Printed on recycled paper.

Division of

Waste Management

701.328.5166

Division of

Water Quality

7of.328.5210

II
Page _2_ of _5_

Permit No. G08002

CONDITIONS

7. A. Emission Limits: Emission limits from the operation of the source

unit(s) identified in Item 6 of this Permit to Operate (hereafter

referred to as "permit") are as follows. Minor source units not

listed are subject to the applicable emission limits specified in

the North Dakota Air Pollution Control Rules.

Source* Air Emission

Unit Contaminant Limit

6.A.1-6.A.6 Opacity 20%

6 .A.7 Particulate* 0.01 gr/dscf**

Opacity 0%**

* Potential emissions of particulate matter shall not exceed 100

tons in any 12-month period (12-month rolling total) .

** Pursuant to the emission limits contained in 40.CFR Part 60,

Subpart DD, New Source Performance Standards for Grain

Elevators.

B. Fugitive Emissions Limitation: All reasonable precautions shall be

taken by the owner/operator to prevent and/or minimize fugitive

emissions of dust emission from the operation of the source unit(s)

identified under Item 6.

Source 6.A. may not discharge fugitive emissions from:

1) Any grain handling operation with exhibits greater than zero

percent opacity.

C. NewSource Performance Standards: The owner/operator shall operate

Source Unit 6.A. in accordance with the applicable requirements of

40 CFR Part 60, Subpart DD, Standards of Performance for New

Stationary Sources for Grain Elevators as referenced in Chapter 33-

15-12 of the North Dakota Air pollution Control Rules.

D. Annual Emission Inventory/Annual Production Reports: The

owner/operator shall submit an annual emission inventory report or

an annual production report, .upon request, on forms supplied or

approved by the Department.

E. Source Operations: Operations at the installation shall be in

accordance with statements, representations, procedures and

supporting data contained in the initial application, and any

supplemental information or renewal application(s). submitted

thereafter. Any operations not listed in this permit are subject

to all applicable North Dakota Air pollution Control Rules.
Page _3_ of ~

Permit No. G08002

F. Alterations, Modifications or Changes: Any alteration, repairing,

expansion, or change in the method of operation of the source which

results in the emission of an additional type or greater amount of

air contaminants or which results in an increase in the ambient

concentration of any air contaminant, must be reviewed and approved

by the Department prior to the start of such alteration, repairing,

expansion or change in the method of operation.

G. Recordkeeping: The owner/operator shall maintain any compliance

monitoring records required by this permit or applicable

requirements. The ownE:r/operator shall retain records. of all

required monitoring data and support information for a period of at

least five years from the date of the monitoring sample,

measurement, report or application. .Support information may

include all calibration and maintenance records and all original

strip-chart recordings/computer printouts for continuous monitoring

instrumentation, and copies of all reports required by the permit.

H. Nuisance or Danger: This permit shall in no way authorize the

maintenance of a nuisance or a danger to public health or safety.

I. Malfunction Notification: The owner/operator shall notify the

Department of any malfunction which can be expected to last longer

than twenty-four hours and can cause the emission of air

contaminants in violation of applicable rules and regulations.

J. Operation of Air Pollution Control Equipment: The owner/operator

shall maintain and operate all air pollution control equipment in

a manner consistent with good air pollution control practice for

minimizing emissions.

K. Permit Renewal and Invalidation: This permit shall be effective

from the date of its issuance until the date specified in Item 5

unless sooner suspended, revoked or surrendered. Application for

renewal of this permit shall be submitted ninety days prior to such

expiration date. The Department shall approve 'or disapprove the

renewal of the permit within ninety days of receipt of the renewal

application.

L. Change of OWnership: This permit may not be transferred and is to

be returned to the Department upon the destruction or change of

ownership of the source unit(s), or upon expiration, suspension or

revocation of this permit.

M. Right of Entry: Any duly authorized officer, employee or agent of

the North Dakota Department of Health may enter and inspect any

property, premise or place at which the source listed in Item 3 of

this permit is located at any time for the purpose of ascertaining

the state of compliance with the North Dakota Air Pollution Control

Rules. The Department may conduct tests and take samples of air
Date

Page _4_ of _5_

Permit No. G08002

contaminants, fuel, processing material, and other materials which

affect or may affect emissions of air contaminants from any source.

The Department shall have the right to access and copy any records

required by the Department's rules and to inspect moni toring

equipment located on the'premises.

N. Other Regulations: The owner/operator of the source unit(s)

described in Item 6 of this permit shall comply with all State and

Federal environmental laws and rules. In addition, the

owner/operator shall comply with all local burning, fire, zoning,

and other applicable ordinances, codes, rules and regulations.

O. Permit Issuance: This permit is issued in reliance upon the

accuracy and completeness of the information set forth in the

application. The conditions of this permit herein become, upon the

effective date of this permit, enforceable by the Department

pursuant to any remedies it now has, or may in the future have,

under the North Dakota Air pollution Control Law, NDCC Chapter 23-

25. Each and every condition of this permit is a material part

thereof, and is not severable.

P. OdorRestrictions: The owner/operator shall not discharge into the

ambient air any objectionable odorous air contaminant which is in

excess of the limits established in NDAC 33-15-16 and NDCC 23-25-

11.

Q. Sampling and Testing: The Department may require the owner/operator

to conduct tests to determine the emission rate of air contaminants

from the source. The Department may observe the testing and may

specify testing methods to be used. A signed copy of the test

results shall be furnished to the Department within 60 days of the

test date. The basis for this condition is NDAC 33-15-01-12 which

is hereby incorporated into this permit by reference. TO

facilitate preparing for and conducting such tests, and to

facilitate reporting the test results to the Department, the

owner/operator shall. follow the procedures and formats in the

Department's Emission Testing Guideline,

FOR THE NORTH DAKOTA

DEPARTMENT OF HEALTH

L~

~T~rry ~Clair, P.E.

DJ.rector

Division of Air Quality
	
	


	









 !!

	

Plant ID and Location: 

Archer Daniels Midland 

ADM-Benson Quinn 

Elevator Avenue 

P.O. Box 188 

Rogers, North Dakota 

Permit: PTC06014 

Emission Sources: 

Grain Handling 

Test Locations: 

East Baghouse Stack 

West Baghouse Stack 

Conveyor Bin 104 

Conveyor Bin 19 & 20 

Conveyor Bin 21 

Comprehensive 

Emissions Test Report 

East Baghouse Stack 

West Baghouse Stack 

Conveyor Load Bin 104 

Conveyor Load Bin 19 & 20 

Conveyor Load Bin 21 

ADM-Benson Quinn 

Particulate, Opacity 

 Compliance Testing 

Test Date: May 6-7, 2008 

Report Date: June 6, 2008

Prepared for: 

Jeffery M. Cleland, QSTI 

Archer Daniels Midland 

1000 60th Avenue SW 

Cedar Rapids, Iowa 

(319) 398-0753

Prepared by: 

Pace Analytical Services, Inc. 

Field Services Division 

1700 Elm Street, Suite 200 

Minneapolis, MN 55414 

(612) 607-1700 

Pace Project No. 0804-100 

Pace Analytical

FSD 0804-100

Report Date 6/6/2008

Archer Daniels Midland

Page 1 of 37
Table of Contents

Report Cover 1 

Table of Contents 2 

Executive Summary 3 

Introduction 4 

Results Summary 5 

Summary Tables 6 

 Table 1 Results Summary, East Baghouse Stack 7 

 Table 2 Results Summary, West Baghouse Stack 8 

Detail Tables 9 

 Table 3 Orsat & Moisture Detail, East Baghouse Stack 10 

 Table 4 Orsat & Moisture Detail, West Baghouse Stack 11 

 Table 5 Particulate Detail, East Baghouse Stack 12 

 Table 6 Particulate Detail, West Baghouse Stack 13 

 Table 7 Airflow Detail, East Baghouse Stack 14 

 Table 8 Airflow Detail, West Baghouse Stack 15 

 Table 9 Opacity Observations, East Baghouse Stack 16 

 Table 10 Opacity Observations, West Baghouse Stack 19 

 Table 11 Opacity Observations, Conveyor Bin 104 22 

 Table 12 Opacity Observations, Conveyor Bin 19 & 20 25 

 Table 13 Opacity Observations, Conveyor Bin 21 28 

Process Description 31 

Test Procedures 32 

 Figure 1 Test Location Schematic, East Baghouse Stack 35 

 Figure 2 Test Location Schematic, West Baghouse Stack 36 

Signatures 37 

Appendix A Field Data Sheets and Documentation A-1 

Appendix B Quantitation and Laboratory Reports B-1 

Appendix C Calculation Equations C-1 

Appendix D Quality Assurance Information D-1 

Appendix E Source/Process/Plant Information E-1 

Appendix F Test Protocol and Pretest Correspondence F-1 

Pace Analytical

FSD 0804-100

Report Date 6/6/2008

Archer Daniels Midland

Page 2 of 37
Executive Summary

Archer Daniels Midland (ADM) contracted Pace Analytical Services, Inc. to perform 

particulate and opacity emissions compliance testing on the East Baghouse Stack and 

the West Baghouse Stack at the ADM-Benson Quinn facility located in Rogers, North 

Dakota. Testing was performed on May 6-7, 2008. Summary results are highlighted in 

the following table: 

Test Results Summary

Parameter Run 1 Run 2 Run 3 Average

East Baghouse Stack 

Volumetric Airflow 

 ACFM 16,300 17,200 16,700 16,700 

 

 DSCFM 16,000 16,500 15,800 16,100 

Particulate Concentration, GR/DSCF 0.0001 0.0002 0.0009 0.0004 

Particulate Emission Rate, LB/HR 0.013 0.029 0.118 0.053 

West Baghouse Stack 

Volumetric Airflow 

 ACFM 17,600 17,600 17,200 17,500 

 

 DSCFM 17,800 17,700 17,300 17,600 

Particulate Concentration, GR/DSCF 0.0004 0.0003 0.0004 0.0004 

Particulate Emission Rate, LB/HR 0.068 0.051 0.058 0.059 

Particulate Emission Limit 0.01 GR/DSCF 

Pace Analytical

FSD 0804-100

Report Date 6/6/2008

Archer Daniels Midland

Page 3 of 37
Introduction

Pace Analytical Services, Inc. personnel conducted particulate and opacity emissions 

compliance testing on the East Baghouse Stack and the West Baghouse Stack at the 

ADM-Benson Quinn facility located in Rogers, North Dakota. Opactiy observations 

were also recorded for Conveyor Bins 104, 19 & 20, and 21. Mike Walter, Adam Birr 

and Matt McDermott performed on-site testing activities. Terry Borgerding provided 

administrative project management. Cris Breidenbach with ADM-Benson Quinn 

coordinated plant activities during testing. Jeff Cleland with ADM prepared a 

comprehensive test protocol that was submitted to the North Dakota Department of 

Health. On-site activities consisted of the following measurements: 

 - Particulate, three independent 84 minute samplings. 

 - Opacity, three independent one-hour observation periods. 

- Volumetric airflow, measurements collected in conjunction with isokinetic testing. 

The project objectives were to quantify particulate and opacity emission constituents 

and compare them to applicable air emissions regulations stipulated by North Dakota 

Department of Health and the facility permit. These measurements were performed at 

90+% capacity. Quality protocols comply with regulatory compliance testing 

requirements. 

Subsequent sections summarize the test results and provide descriptions of the process 

and test methods. Supporting information and raw data are in the appendices. 

Pace Analytical

FSD 0804-100

Report Date 6/6/2008

Archer Daniels Midland

Page 4 of 37
Results Summary

Results of particulate determinations are summarized in Table 1 and 2. The particulate 

emission rate from the East Baghouse Stack averaged 0.053 LB/HR at 0.0004 

GR/DSCF. The particulate emission rate from the West Baghouse Stack averaged 

0.059 LB/HR at 0.0004 GR/DSCF. The particulate emission limit for this source is 0.01 

GR/DSCF. Subsequent tables provide expanded detail of the testing results. 

Results of opacity observations are detailed in Tables 9-13. All of the observations on 

each source were zero percent. 

The data in this report are indicative of emission characteristics of the measured 

sources for process conditions at the time of the test. Representations to other sources 

and test conditions are beyond the scope of this report. 

Pace Analytical

FSD 0804-100

Report Date 6/6/2008

Archer Daniels Midland

Page 5 of 37
Summary Tables

Pace Analytical

FSD 0804-100

Report Date 6/6/2008

Archer Daniels Midland

Page 6 of 37
Archer Daniels Midland Table 1

Rogers, North Dakota Particulate Summary

Pace Project No. 0804-100 East Baghouse Stack

Report Date: 6/6/08 TEST 1

Parameter Run 1 Run 2 Run 3 Average

Date of Run 5/6/2008 5/6/2008 5/6/2008

Time of Run 835-1004 1030-1158 1225-1352

Volumetric Flow Rate

 ACFM 16,300 17,200 16,700 16,700

 DSCFM 16,000 16,500 15,800 16,100

Gas Temperature, °F 63 75 81 73

Gas Moisture Content, %v/v 0.7 0.8 1.2 0.9

Gas Composition, %v/v, dry

 Carbon Dioxide, CO2 20.9 20.9 20.9 20.9

 Oxygen, O2 0.0 0.0 0.0 0.0

 Nitrogen, N2 (by difference) 79.1 79.1 79.1 79.1

Particulate Mass Rate, LB/HR

 Filterable (Dry Catch) Particulate 0.013 0.029 0.118 0.053

 Dry Catch + Organic Wet Catch NA NA NA

 Dry Catch + M-202 (PM-10 Eq.) NA NA NA

Particulate Concentration, GR/DSCF

 Filterable (Dry Catch) Particulate 0.0001 0.0002 0.0009 0.0004

 Dry Catch + Organic Wet Catch NA NA NA

 Dry Catch + M-202 (PM-10 Eq.) NA NA NA

Pace Analytical

FSD 0804-100

Report Date 6/6/2008

Archer Daniels Midland

Page 7 of 37
Archer Daniels Midland Table 2

Rogers, North Dakota Particulate Summary

Pace Project No. 0804-100 West Baghouse Stack

Report Date: 6/6/08 TEST 1

Parameter Run 1 Run 2 Run 3 Average

Date of Run 5/7/2008 5/7/2008 5/7/2008

Time of Run 835-1012 1030-1208 1230-1409

Volumetric Flow Rate

 ACFM 17,600 17,600 17,200 17,500

 DSCFM 17,800 17,700 17,300 17,600

Gas Temperature, °F 50 52 55 52

Gas Moisture Content, %v/v 0.3 0.6 0.5 0.4

Gas Composition, %v/v, dry

 Carbon Dioxide, CO2 0.0 0.0 0.0 0.0

 Oxygen, O2 20.9 20.9 20.9 20.9

 Nitrogen, N2 (by difference) 79.1 79.1 79.1 79.1

Particulate Mass Rate, LB/HR

 Filterable (Dry Catch) Particulate 0.068 0.051 0.058 0.059

 Dry Catch + Organic Wet Catch NA NA NA

 Dry Catch + M-202 (PM-10 Eq.) NA NA NA

Particulate Concentration, GR/DSCF

 Filterable (Dry Catch) Particulate 0.0004 0.0003 0.0004 0.0004

 Dry Catch + Organic Wet Catch NA NA NA

 Dry Catch + M-202 (PM-10 Eq.) NA NA NA

Pace Analytical

FSD 0804-100

Report Date 6/6/2008

Archer Daniels Midland

Page 8 of 37
Detail Tables

Pace Analytical

FSD 0804-100

Report Date 6/6/2008

Archer Daniels Midland

Page 9 of 37
Archer Daniels Midland Table 3

Rogers, North Dakota Orsat & Moisture Detail

Pace Project No. 0804-100 East Baghouse Stack

Report Date: 6/6/08 TEST 1

Parameter Run 1 Run 2 Run 3

Date of Run 5/6/2008 5/6/2008 5/6/2008

Time of Run 835-1004 1030-1158 1225-1352

Orsat, %v/v

 Dry Basis

 Carbon Dioxide 20.90 20.90 20.90

 Oxygen 0.01 0.01 0.01

 Carbon Monoxide* * * *

 Nitrogen 79.09 79.09 79.09

 Wet Basis

 Carbon Dioxide 20.76 20.73 20.65

 Oxygen 0.01 0.01 0.01

 Carbon Monoxide* * * *

 Nitrogen 78.54 78.45 78.15

Portable Oxygen Monitor Result

 Time Weighted Average, %O2 20.9 20.9 20.9

Moisture Collected, ml 10.0 12.0 17.0

Moisture Content, %v/v 0.69 0.81 1.18

Moisture Content if Saturated, %v/v 1.98 3.02 3.57

Relative Humidity, % rH 35% 27% 33%

Molecular Weight of Flue Gas, lb/lb-mole

 Dry 31.34 31.34 31.34

 Wet 31.25 31.24 31.19

Fo 1.000 1.000 1.000

 *Carbon monoxide was not measured, assumed concentrations less than 0.01%.

Pace Analytical

FSD 0804-100

Report Date 6/6/2008

Archer Daniels Midland

Page 10 of 37
Archer Daniels Midland Table 4

Rogers, North Dakota Orsat & Moisture Detail

Pace Project No. 0804-100 West Baghouse Stack

Report Date: 6/6/08 TEST 1

Parameter Run 1 Run 2 Run 3

Date of Run 5/7/2008 5/7/2008 5/7/2008

Time of Run 835-1012 1030-1208 1230-1409

Orsat, %v/v**

 Dry Basis

 Carbon Dioxide 0.01 0.01 0.01

 Oxygen 20.90 20.90 20.90

 Carbon Monoxide* * * *

 Nitrogen 79.09 79.09 79.09

 Wet Basis

 Carbon Dioxide 0.01 0.01 0.01

 Oxygen 20.84 20.78 20.80

 Carbon Monoxide* * * *

 Nitrogen 78.88 78.62 78.72

Portable Oxygen Monitor Result

 Time Weighted Average, %O2 20.9 20.9 20.9

Moisture Collected, ml 4.0 9.0 7.0

Moisture Content, %v/v 0.26 0.59 0.47

Moisture Content if Saturated, %v/v 1.25 1.31 1.46

Relative Humidity, % rH 21% 45% 32%

Molecular Weight of Flue Gas, lb/lb-mole

 Dry 28.84 28.84 28.84

 Wet 28.81 28.77 28.79

 *Carbon monoxide was not measured, assumed concentrations less than 0.01%.

 **Gas stream reflects ambient air, published values were used.

Pace Analytical

FSD 0804-100

Report Date 6/6/2008

Archer Daniels Midland

Page 11 of 37
Archer Daniels Midland Table 5

Rogers, North Dakota Particulate Detail

Pace Project No. 0804-100 East Baghouse Stack

Report Date: 6/6/08 TEST 1

Parameter Run 1 Run 2 Run 3

Date of Run 5/6/2008 5/6/2008 5/6/2008

Time of Run 835-1004 1030-1158 1225-1352

Sample Duration, Minutes 84.0 84.0 84.0

Average Flue Gas Temperature, °F 63.0 75.4 80.5

Moisture Content of Flue Gas, %v/v 0.69 0.81 1.18

Particulate Collected, mg

 Dry Catch 0.4 0.9 3.8

 Inorganic Wet Catch NR NR NR

 Organic Wet Catch NR NR NR

Volumetric Flow Rate

 ACFM 16,270 17,190 16,660

 SCFM 16,130 16,650 15,980

 DSCFM 16,020 16,520 15,790

Sample Volume, Cubic Feet

 Meter Conditions 69.35 72.71 70.38

 Dry Standard 67.49 69.58 66.84

Isokinetic Variation, % 104.6 104.5 105.0

Particulate Concentration

 Dry Catch, GR/DSCF 0.0001 0.0002 0.0009

 Inorganic Wet Catch, GR/DSCF NR NR NR

 Organic Wet Catch, GR/DSCF NR NR NR

 Dry Catch+Organic WC, GR/DSCF NA NA NA

 Total Particulate (PM-10 Eq.), GR/DSCF NA NA NA

Particulate Emission Rate

 Dry Catch Only, LB/HR 0.013 0.029 0.118

 Inorganic Wet Catch Only, LB/HR NR NR NR

 Organic Wet Catch Only, LB/HR NR NR NR

 Dry Catch+Organic WC, LB/HR NA NA NA

 Total Particulate (PM-10 Eq.), LB/HR NA NA NA

 NR=Not required or not requested. NA = Not applicable 

Pace Analytical

FSD 0804-100

Report Date 6/6/2008

Archer Daniels Midland

Page 12 of 37
Archer Daniels Midland Table 6

Rogers, North Dakota Particulate Detail

Pace Project No. 0804-100 West Baghouse Stack

Report Date: 6/6/08 TEST 1

Parameter Run 1 Run 2 Run 3

Date of Run 5/7/2008 5/7/2008 5/7/2008

Time of Run 835-1012 1030-1208 1230-1409

Sample Duration, Minutes 96.0 96.0 96.0

Average Flue Gas Temperature, °F 50.3 51.5 54.5

Moisture Content of Flue Gas, %v/v 0.26 0.59 0.47

Particulate Collected, mg

 Dry Catch 2.1 1.6 1.8

 Inorganic Wet Catch NR NR NR

 Organic Wet Catch NR NR NR

Volumetric Flow Rate

 ACFM 17,590 17,620 17,220

 SCFM 17,850 17,840 17,340

 DSCFM 17,810 17,730 17,260

Sample Volume, Cubic Feet

 Meter Conditions 71.43 73.24 71.08

 Dry Standard 71.24 71.35 69.25

Isokinetic Variation, % 99.7 100.3 100.0

Particulate Concentration

 Dry Catch, GR/DSCF 0.0004 0.0003 0.0004

 Inorganic Wet Catch, GR/DSCF NR NR NR

 Organic Wet Catch, GR/DSCF NR NR NR

 Dry Catch+Organic WC, GR/DSCF NA NA NA

 Total Particulate (PM-10 Eq.), GR/DSCF NA NA NA

Particulate Emission Rate

 Dry Catch Only, LB/HR 0.068 0.051 0.058

 Inorganic Wet Catch Only, LB/HR NR NR NR

 Organic Wet Catch Only, LB/HR NR NR NR

 Dry Catch+Organic WC, LB/HR NA NA NA

 Total Particulate (PM-10 Eq.), LB/HR NA NA NA

 NR=Not required or not requested. NA = Not applicable 

Pace Analytical

FSD 0804-100

Report Date 6/6/2008

Archer Daniels Midland

Page 13 of 37
Archer Daniels Midland Table 7

Rogers, North Dakota Preliminary Airflow

Pace Project No. 0804-100 East Baghouse Stack

Report Date: 6/6/08 Test 1

Date of Run 5/6/2008

Time of Measurement 0000

Number of Sampling Ports 2

Number of Points Sampled 24

Barometric Pressure (In. Hg) 29.35

Static Pressure (In. WC) 0.45

Absolute Flue Gas Pressure (In. Hg) 29.38

Average Flue Gas Temperature (F) 57

Average Moisture Content (%v/v) 1

Flue Gas Average Velocity (Feet/Second) 63.14

Duct Dimension (Inches) 28

Duct Cross-sectional Area (Square Feet) 4.28

Volumetric Flow Rate

 ACFM 16200

 SCFM 16250

 DSCFM 16080

Pace Analytical

FSD 0804-100

Report Date 6/6/2008

Archer Daniels Midland

Page 14 of 37
Archer Daniels Midland Table 8

Rogers, North Dakota Preliminary Airflow

Pace Project No. 0804-100 West Baghouse Stack

Report Date: 6/6/08 Test 1

Date of Run 5/7/2008

Time of Measurement 0815

Number of Sampling Ports 2

Number of Points Sampled 24

Barometric Pressure (In. Hg) 29.32

Static Pressure (In. WC) 0.10

Absolute Flue Gas Pressure (In. Hg) 29.33

Average Flue Gas Temperature (F) 41

Average Moisture Content (%v/v) 1

Flue Gas Average Velocity (Feet/Second) 56.55

Duct Dimension (Inches) 30

Duct Cross-sectional Area (Square Feet) 4.91

Volumetric Flow Rate

 ACFM 16650

 SCFM 17200

 DSCFM 17030

Pace Analytical

FSD 0804-100

Report Date 6/6/2008

Archer Daniels Midland

Page 15 of 37
Archer Daniels Midland Table 9

Rogers, North Dakota Opacity Evaluation

Pace Project No. 0804-100 East Baghouse Stack

Report Date: 6/6/08 Test 1

Run 1

Percent Opacity Optical Density Relative Frequency

0 0.000 100.00

5 0.022 0.00

10 0.046 0.00

15 0.071 0.00

20 0.097 0.00

25 0.125 0.00

30 0.155 0.00

35 0.187 0.00

40 0.222 0.00

45 0.260 0.00

50 0.301 0.00

55 0.347 0.00

60 0.398 0.00

65 0.456 0.00

70 0.523 0.00

75 0.602 0.00

80 0.699 0.00

85 0.824 0.00

90 1.000 0.00

95 1.301 0.00

99 2.000 0.00

Average > 0.0 0.000 Total > 100

Average Opacity Per Sequential Six Minute Period: High Six Minute Average: 0.0

Period Opacity Period Opacity Maximum reading: 0.0

1 0.0 6 0.0 Minumum reading: 0.0

2 0.0 7 0.0

3 0.0 8 0.0 Observer: M Mcdermott

4 0.0 9 0.0 Date of test: 5/6/2008

5 0.0 10 0.0 Time of test: 835-935

NOTE: The High Six minute Average opacity is the maximum value for any consecutive 24 readings

Pace Analytical

FSD 0804-100

Report Date 6/6/2008

Archer Daniels Midland

Page 16 of 37
Archer Daniels Midland Table 9 Continued

Rogers, North Dakota Opacity Evaluation

Pace Project No. 0804-100 East Baghouse Stack

Report Date: 6/6/08 Test 1

Run 2

Percent Opacity Optical Density Relative Frequency

0 0.000 100.00

5 0.022 0.00

10 0.046 0.00

15 0.071 0.00

20 0.097 0.00

25 0.125 0.00

30 0.155 0.00

35 0.187 0.00

40 0.222 0.00

45 0.260 0.00

50 0.301 0.00

55 0.347 0.00

60 0.398 0.00

65 0.456 0.00

70 0.523 0.00

75 0.602 0.00

80 0.699 0.00

85 0.824 0.00

90 1.000 0.00

95 1.301 0.00

99 2.000 0.00

Average > 0.0 0.000 Total > 100

Average Opacity Per Sequential Six Minute Period: High Six Minute Average: 0.0

Period Opacity Period Opacity Maximum reading: 0.0

1 0.0 6 0.0 Minumum reading: 0.0

2 0.0 7 0.0

3 0.0 8 0.0 Observer: M Mcdermott

4 0.0 9 0.0 Date of test: 5/6/2008

5 0.0 10 0.0 Time of test: 1030-1130

NOTE: The High Six minute Average opacity is the maximum value for any consecutive 24 readings

Pace Analytical

FSD 0804-100

Report Date 6/6/2008

Archer Daniels Midland

Page 17 of 37
Archer Daniels Midland Table 9 Continued

Rogers, North Dakota Opacity Evaluation

Pace Project No. 0804-100 East Baghouse Stack

Report Date: 6/6/08 Test 1

Run 3

Percent Opacity Optical Density Relative Frequency

0 0.000 100.00

5 0.022 0.00

10 0.046 0.00

15 0.071 0.00

20 0.097 0.00

25 0.125 0.00

30 0.155 0.00

35 0.187 0.00

40 0.222 0.00

45 0.260 0.00

50 0.301 0.00

55 0.347 0.00

60 0.398 0.00

65 0.456 0.00

70 0.523 0.00

75 0.602 0.00

80 0.699 0.00

85 0.824 0.00

90 1.000 0.00

95 1.301 0.00

99 2.000 0.00

Average > 0.0 0.000 Total > 100

Average Opacity Per Sequential Six Minute Period: High Six Minute Average: 0.0

Period Opacity Period Opacity Maximum reading: 0.0

1 0.0 6 0.0 Minumum reading: 0.0

2 0.0 7 0.0

3 0.0 8 0.0 Observer: M Mcdermott

4 0.0 9 0.0 Date of test: 5/6/2008

5 0.0 10 0.0 Time of test: 1230-1330

NOTE: The High Six minute Average opacity is the maximum value for any consecutive 24 readings

Pace Analytical

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Archer Daniels Midland

Page 18 of 37
Archer Daniels Midland

Rogers, North Dakota Opacity Evaluation

Pace Project No. 0804-100 West Baghouse Stack

Report Date: 6/6/08 Test 1

Run 1

Percent Opacity Optical Density Relative Frequency

0 0.000 100.00

5 0.022 0.00

10 0.046 0.00

15 0.071 0.00

20 0.097 0.00

25 0.125 0.00

30 0.155 0.00

35 0.187 0.00

40 0.222 0.00

45 0.260 0.00

50 0.301 0.00

55 0.347 0.00

60 0.398 0.00

65 0.456 0.00

70 0.523 0.00

75 0.602 0.00

80 0.699 0.00

85 0.824 0.00

90 1.000 0.00

95 1.301 0.00

99 2.000 0.00

Average > 0.0 0.000 Total > 100

Average Opacity Per Sequential Six Minute Period: High Six Minute Average: 0.0

Period Opacity Period Opacity Maximum reading: 0.0

1 0.0 6 0.0 Minumum reading: 0.0

2 0.0 7 0.0

3 0.0 8 0.0 Observer: M McDermott

4 0.0 9 0.0 Date of test: 5/7/2008

5 0.0 10 0.0 Time of test: 850-950

NOTE: The High Six minute Average opacity is the maximum value for any consecutive 24 readings

Table 10

Pace Analytical

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Report Date 6/6/2008

Archer Daniels Midland

Page 19 of 37
Archer Daniels Midland Table 10 Continued

Rogers, North Dakota Opacity Evaluation

Pace Project No. 0804-100 West Baghouse Stack

Report Date: 6/6/08 Test 1

Run 2

Percent Opacity Optical Density Relative Frequency

0 0.000 100.00

5 0.022 0.00

10 0.046 0.00

15 0.071 0.00

20 0.097 0.00

25 0.125 0.00

30 0.155 0.00

35 0.187 0.00

40 0.222 0.00

45 0.260 0.00

50 0.301 0.00

55 0.347 0.00

60 0.398 0.00

65 0.456 0.00

70 0.523 0.00

75 0.602 0.00

80 0.699 0.00

85 0.824 0.00

90 1.000 0.00

95 1.301 0.00

99 2.000 0.00

Average > 0.0 0.000 Total > 100

Average Opacity Per Sequential Six Minute Period: High Six Minute Average: 0.0

Period Opacity Period Opacity Maximum reading: 0.0

1 0.0 6 0.0 Minumum reading: 0.0

2 0.0 7 0.0

3 0.0 8 0.0 Observer: M McDermott

4 0.0 9 0.0 Date of test: 5/7/2008

5 0.0 10 0.0 Time of test: 1045-1145

NOTE: The High Six minute Average opacity is the maximum value for any consecutive 24 readings

Pace Analytical

FSD 0804-100

Report Date 6/6/2008

Archer Daniels Midland

Page 20 of 37
Archer Daniels Midland Table 10 Continued

Rogers, North Dakota Opacity Evaluation

Pace Project No. 0804-100 West Baghouse Stack

Report Date: 6/6/08 Test 1

Run 3

Percent Opacity Optical Density Relative Frequency

0 0.000 100.00

5 0.022 0.00

10 0.046 0.00

15 0.071 0.00

20 0.097 0.00

25 0.125 0.00

30 0.155 0.00

35 0.187 0.00

40 0.222 0.00

45 0.260 0.00

50 0.301 0.00

55 0.347 0.00

60 0.398 0.00

65 0.456 0.00

70 0.523 0.00

75 0.602 0.00

80 0.699 0.00

85 0.824 0.00

90 1.000 0.00

95 1.301 0.00

99 2.000 0.00

Average > 0.0 0.000 Total > 100

Average Opacity Per Sequential Six Minute Period: High Six Minute Average: 0.0

Period Opacity Period Opacity Maximum reading: 0.0

1 0.0 6 0.0 Minumum reading: 0.0

2 0.0 7 0.0

3 0.0 8 0.0 Observer: M McDermott

4 0.0 9 0.0 Date of test: 5/7/2008

5 0.0 10 0.0 Time of test: 1235-1335

NOTE: The High Six minute Average opacity is the maximum value for any consecutive 24 readings

Pace Analytical

FSD 0804-100

Report Date 6/6/2008

Archer Daniels Midland

Page 21 of 37
Archer Daniels Midland

Rogers, North Dakota Opacity Evaluation

Pace Project No. 0804-100 Conveyor Load Bin 104

Report Date: 6/6/08 Test 1

Run 1

Percent Opacity Optical Density Relative Frequency

0 0.000 100.00

5 0.022 0.00

10 0.046 0.00

15 0.071 0.00

20 0.097 0.00

25 0.125 0.00

30 0.155 0.00

35 0.187 0.00

40 0.222 0.00

45 0.260 0.00

50 0.301 0.00

55 0.347 0.00

60 0.398 0.00

65 0.456 0.00

70 0.523 0.00

75 0.602 0.00

80 0.699 0.00

85 0.824 0.00

90 1.000 0.00

95 1.301 0.00

99 2.000 0.00

Average > 0.0 0.000 Total > 100

Average Opacity Per Sequential Six Minute Period: High Six Minute Average: 0.0

Period Opacity Period Opacity Maximum reading: 0.0

1 0.0 6 0.0 Minumum reading: 0.0

2 0.0 7 0.0

3 0.0 8 0.0 Observer: M. McDermott

4 0.0 9 0.0 Date of test: 5/6/2008

5 0.0 10 0.0 Time of test: 835-935

NOTE: The High Six minute Average opacity is the maximum value for any consecutive 24 readings

Table 11

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Page 22 of 37
Archer Daniels Midland Table 11 Continued

Rogers, North Dakota Opacity Evaluation

Pace Project No. 0804-100 Conveyor Load Bin 104

Report Date: 6/6/08 Test 1

Run 2

Percent Opacity Optical Density Relative Frequency

0 0.000 100.00

5 0.022 0.00

10 0.046 0.00

15 0.071 0.00

20 0.097 0.00

25 0.125 0.00

30 0.155 0.00

35 0.187 0.00

40 0.222 0.00

45 0.260 0.00

50 0.301 0.00

55 0.347 0.00

60 0.398 0.00

65 0.456 0.00

70 0.523 0.00

75 0.602 0.00

80 0.699 0.00

85 0.824 0.00

90 1.000 0.00

95 1.301 0.00

99 2.000 0.00

Average > 0.0 0.000 Total > 100

Average Opacity Per Sequential Six Minute Period: High Six Minute Average: 0.0

Period Opacity Period Opacity Maximum reading: 0.0

1 0.0 6 0.0 Minumum reading: 0.0

2 0.0 7 0.0

3 0.0 8 0.0 Observer: M. McDermott

4 0.0 9 0.0 Date of test: 5/6/2008

5 0.0 10 0.0 Time of test: 1030-1130

NOTE: The High Six minute Average opacity is the maximum value for any consecutive 24 readings

Pace Analytical

FSD 0804-100

Report Date 6/6/2008

Archer Daniels Midland

Page 23 of 37
Archer Daniels Midland Table 11 Continued

Rogers, North Dakota Opacity Evaluation

Pace Project No. 0804-100 Conveyor Load Bin 104

Report Date: 6/6/08 Test 1

Run 3

Percent Opacity Optical Density Relative Frequency

0 0.000 100.00

5 0.022 0.00

10 0.046 0.00

15 0.071 0.00

20 0.097 0.00

25 0.125 0.00

30 0.155 0.00

35 0.187 0.00

40 0.222 0.00

45 0.260 0.00

50 0.301 0.00

55 0.347 0.00

60 0.398 0.00

65 0.456 0.00

70 0.523 0.00

75 0.602 0.00

80 0.699 0.00

85 0.824 0.00

90 1.000 0.00

95 1.301 0.00

99 2.000 0.00

Average > 0.0 0.000 Total > 100

Average Opacity Per Sequential Six Minute Period: High Six Minute Average: 0.0

Period Opacity Period Opacity Maximum reading: 0.0

1 0.0 6 0.0 Minumum reading: 0.0

2 0.0 7 0.0

3 0.0 8 0.0 Observer: M. McDermott

4 0.0 9 0.0 Date of test: 5/6/2008

5 0.0 10 0.0 Time of test: 1230-1330

NOTE: The High Six minute Average opacity is the maximum value for any consecutive 24 readings

Pace Analytical

FSD 0804-100

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Archer Daniels Midland

Page 24 of 37
Archer Daniels Midland

Rogers, North Dakota Opacity Evaluation

Pace Project No. 0804-100 Conveyor Load Bin 19 & 20

Report Date: 6/6/08 Test 1

Run 1

Percent Opacity Optical Density Relative Frequency

0 0.000 100.00

5 0.022 0.00

10 0.046 0.00

15 0.071 0.00

20 0.097 0.00

25 0.125 0.00

30 0.155 0.00

35 0.187 0.00

40 0.222 0.00

45 0.260 0.00

50 0.301 0.00

55 0.347 0.00

60 0.398 0.00

65 0.456 0.00

70 0.523 0.00

75 0.602 0.00

80 0.699 0.00

85 0.824 0.00

90 1.000 0.00

95 1.301 0.00

99 2.000 0.00

Average > 0.0 0.000 Total > 100

Average Opacity Per Sequential Six Minute Period: High Six Minute Average: 0.0

Period Opacity Period Opacity Maximum reading: 0.0

1 0.0 6 0.0 Minumum reading: 0.0

2 0.0 7 0.0

3 0.0 8 0.0 Observer: M. McDermott

4 0.0 9 0.0 Date of test: 5/7/2008

5 0.0 10 0.0 Time of test: 850-950

NOTE: The High Six minute Average opacity is the maximum value for any consecutive 24 readings

Table 12

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Page 25 of 37
Archer Daniels Midland Table 12 Continued

Rogers, North Dakota Opacity Evaluation

Pace Project No. 0804-100 Conveyor Load Bin 19 & 20

Report Date: 6/6/08 Test 1

Run 2

Percent Opacity Optical Density Relative Frequency

0 0.000 100.00

5 0.022 0.00

10 0.046 0.00

15 0.071 0.00

20 0.097 0.00

25 0.125 0.00

30 0.155 0.00

35 0.187 0.00

40 0.222 0.00

45 0.260 0.00

50 0.301 0.00

55 0.347 0.00

60 0.398 0.00

65 0.456 0.00

70 0.523 0.00

75 0.602 0.00

80 0.699 0.00

85 0.824 0.00

90 1.000 0.00

95 1.301 0.00

99 2.000 0.00

Average > 0.0 0.000 Total > 100

Average Opacity Per Sequential Six Minute Period: High Six Minute Average: 0.0

Period Opacity Period Opacity Maximum reading: 0.0

1 0.0 6 0.0 Minumum reading: 0.0

2 0.0 7 0.0

3 0.0 8 0.0 Observer: M. McDermott

4 0.0 9 0.0 Date of test: 5/7/2008

5 0.0 10 0.0 Time of test: 1045-1145

NOTE: The High Six minute Average opacity is the maximum value for any consecutive 24 readings

Pace Analytical

FSD 0804-100

Report Date 6/6/2008

Archer Daniels Midland

Page 26 of 37
Archer Daniels Midland Table 12 Continued

Rogers, North Dakota Opacity Evaluation

Pace Project No. 0804-100 Conveyor Load Bin 19 & 20

Report Date: 6/6/08 Test 1

Run 3

Percent Opacity Optical Density Relative Frequency

0 0.000 100.00

5 0.022 0.00

10 0.046 0.00

15 0.071 0.00

20 0.097 0.00

25 0.125 0.00

30 0.155 0.00

35 0.187 0.00

40 0.222 0.00

45 0.260 0.00

50 0.301 0.00

55 0.347 0.00

60 0.398 0.00

65 0.456 0.00

70 0.523 0.00

75 0.602 0.00

80 0.699 0.00

85 0.824 0.00

90 1.000 0.00

95 1.301 0.00

99 2.000 0.00

Average > 0.0 0.000 Total > 100

Average Opacity Per Sequential Six Minute Period: High Six Minute Average: 0.0

Period Opacity Period Opacity Maximum reading: 0.0

1 0.0 6 0.0 Minumum reading: 0.0

2 0.0 7 0.0

3 0.0 8 0.0 Observer: M. McDermott

4 0.0 9 0.0 Date of test: 5/7/2008

5 0.0 10 0.0 Time of test: 1235-1335

NOTE: The High Six minute Average opacity is the maximum value for any consecutive 24 readings

Pace Analytical

FSD 0804-100

Report Date 6/6/2008

Archer Daniels Midland

Page 27 of 37
Archer Daniels Midland

Rogers, North Dakota Opacity Evaluation

Pace Project No. 0804-100 Conveyor Load Bin 21

Report Date: 6/6/08 Test 1

Run 1

Percent Opacity Optical Density Relative Frequency

0 0.000 100.00

5 0.022 0.00

10 0.046 0.00

15 0.071 0.00

20 0.097 0.00

25 0.125 0.00

30 0.155 0.00

35 0.187 0.00

40 0.222 0.00

45 0.260 0.00

50 0.301 0.00

55 0.347 0.00

60 0.398 0.00

65 0.456 0.00

70 0.523 0.00

75 0.602 0.00

80 0.699 0.00

85 0.824 0.00

90 1.000 0.00

95 1.301 0.00

99 2.000 0.00

Average > 0.0 0.000 Total > 100

Average Opacity Per Sequential Six Minute Period: High Six Minute Average: 0.0

Period Opacity Period Opacity Maximum reading: 0.0

1 0.0 6 0.0 Minumum reading: 0.0

2 0.0 7 0.0

3 0.0 8 0.0 Observer: M. McDermott

4 0.0 9 0.0 Date of test: 5/7/2008

5 0.0 10 0.0 Time of test: 850-950

NOTE: The High Six minute Average opacity is the maximum value for any consecutive 24 readings

Table 13

Pace Analytical

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Page 28 of 37
Archer Daniels Midland Table 13 Continued

Rogers, North Dakota Opacity Evaluation

Pace Project No. 0804-100 Conveyor Load Bin 21

Report Date: 6/6/08 Test 1

Run 2

Percent Opacity Optical Density Relative Frequency

0 0.000 100.00

5 0.022 0.00

10 0.046 0.00

15 0.071 0.00

20 0.097 0.00

25 0.125 0.00

30 0.155 0.00

35 0.187 0.00

40 0.222 0.00

45 0.260 0.00

50 0.301 0.00

55 0.347 0.00

60 0.398 0.00

65 0.456 0.00

70 0.523 0.00

75 0.602 0.00

80 0.699 0.00

85 0.824 0.00

90 1.000 0.00

95 1.301 0.00

99 2.000 0.00

Average > 0.0 0.000 Total > 100

Average Opacity Per Sequential Six Minute Period: High Six Minute Average: 0.0

Period Opacity Period Opacity Maximum reading: 0.0

1 0.0 6 0.0 Minumum reading: 0.0

2 0.0 7 0.0

3 0.0 8 0.0 Observer: M. McDermott

4 0.0 9 0.0 Date of test: 5/7/2008

5 0.0 10 0.0 Time of test: 1045-1145

NOTE: The High Six minute Average opacity is the maximum value for any consecutive 24 readings

Pace Analytical

FSD 0804-100

Report Date 6/6/2008

Archer Daniels Midland

Page 29 of 37
Archer Daniels Midland Table 13 Continued

Rogers, North Dakota Opacity Evaluation

Pace Project No. 0804-100 Conveyor Load Bin 21

Report Date: 6/6/08 Test 1

Run 3

Percent Opacity Optical Density Relative Frequency

0 0.000 100.00

5 0.022 0.00

10 0.046 0.00

15 0.071 0.00

20 0.097 0.00

25 0.125 0.00

30 0.155 0.00

35 0.187 0.00

40 0.222 0.00

45 0.260 0.00

50 0.301 0.00

55 0.347 0.00

60 0.398 0.00

65 0.456 0.00

70 0.523 0.00

75 0.602 0.00

80 0.699 0.00

85 0.824 0.00

90 1.000 0.00

95 1.301 0.00

99 2.000 0.00

Average > 0.0 0.000 Total > 100

Average Opacity Per Sequential Six Minute Period: High Six Minute Average: 0.0

Period Opacity Period Opacity Maximum reading: 0.0

1 0.0 6 0.0 Minumum reading: 0.0

2 0.0 7 0.0

3 0.0 8 0.0 Observer: M. McDermott

4 0.0 9 0.0 Date of test: 5/7/2008

5 0.0 10 0.0 Time of test: 1235-1335

NOTE: The High Six minute Average opacity is the maximum value for any consecutive 24 readings

Pace Analytical

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Report Date 6/6/2008

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Page 30 of 37
Process Description

ADM – Benson Quinn operates a grain handling facility located in Rogers, North 

Dakota. The theoretical capacity of the West Grain Dump handing processes is 

160,000 bushels per 8 hours and 80,000 bushels per 8 hours for the East Grain Dump 

for a total capacity of 240,000 bushels per 8 hours. The through-put during testing on 

the East Baghouse (5/6/08) was 144,832 from the West Grain Dump and 71,815 from 

the East Grain Dump for a total of 216,647 bushels. The through-put during testing on 

the West Baghouse (5/7/08) was 145,810 from the West Grain Dump and 70,925 from 

the East Grain Dump for a total of 216,735 bushels. The pressure drop across the West 

Baghouse remained constant at 3 inches WC. The pressure drop across the East 

Baghouse remained constant at 1.2 inches WC. 

Pace Analytical

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Page 31 of 37
Test Procedures

EPA Method 1 specifies test location acceptability criteria and defines the minimum 

number of traverse points for representative sampling. Linear measurements from 

upstream and downstream flow disturbances and the duct equivalent diameter are 

compared and the distances related to number of diameters. A flow disturbance can be 

defined as anything that changes or upsets the direction of flow within the duct including 

bends, dampers, fans, shape or size transitions and open flames. Method 1 stipulates 

that test ports should be located at least eight diameters downstream and two diameters 

upstream of any flow disturbance. The minimum acceptable criteria are two diameters 

downstream and 0.5 diameters upstream of flow disturbances. The test location must 

also be free of cyclonic or multidirectional flow. Once the distances have been 

determined, the values are used to select the minimum number of traverse points for 

representative sampling. Shorter distances require a greater number of traverse points. 

The test site configuration is shown in Figure 1 and 2 and has the following 

characteristics: 

 Test Location: East BH Stack West BH Stack 

 Duct Cross-sectional Dimension: 28” 30” 

 Distance From Upstream Disturbance: 55“ 60” 

 Number of Duct Diameters: 2 2 

 Distance To Downstream Disturbance: 23” 36 “ 

 Number of Duct Diameters: 0.5 0.5 

 Cyclonic or Multidirectional Flow: No, verified No, verified 

 Number of Traverse Points: 24 24

EPA Method 2 defines procedures used to measure linear velocity and volumetric flow 

rate of a confined gas stream. Using traverse points determined by EPA Method 1, 

multiple differential pressure measurements (pitot impact opening versus static 

pressure) are made using a pitot tube and differential pressure gauge. The individual 

measurements are averaged and combined with the gas density to calculate the 

average gas velocity. The velocity and duct cross-sectional area are used to calculate 

the volumetric flow rate. The volumetric flow rate is expressed as actual cubic feet per 

minute (ACFM), standard cubic feet per minute (SCFM), and dry standard cubic feet per 

minute (DSCFM). The technician maintains comprehensive test records on handwritten 

field data sheets. Details of the equipment used to measure gas velocity include: 

 Pitot Tube: S-Type 

 Differential Pressure Gauge: Oil Manometer 

 Temperature Device: Type K Thermocouple 

 Barometer Type: Electronic Digital Barometer 

 Gas Density Determination: EPA Method 3 

 Gas Moisture Determination: EPA Method 4 

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Page 32 of 37
EPA Method 3 allows the use of published or ambient gas concentrations in cases 

where the source gas is free of combustion components. For this test, ambient gas 

concentrations are used to calculate gas molecular weight. 

EPA Method 4 defines procedures to measure the moisture content of emissions gas 

streams from stationary sources. The moisture content of the gas stream is determined 

in conjunction with the isokinetic sampling train described below. Collected water 

condensate is measured from the back half of the isokinetic train. Method 4 equations 

convert the condensed liquid volume to a gas volume. The water vapor volume 

compared with the dry standard gas volume collected through the isokinetic train 

determines the moisture content of the emissions gas stream and is reported in percent 

by volume. 

 Probe Material: Borosilicate glass 

 Filter Media: Quartz fiber, >99.95% efficient at 0.3 μm 

 Impinger Train Material: Borosilicate glass 

 Desiccant: Drierite 

 Condensate Measure: Graduated Cylinder 

 Desiccant Measure: Electronic balance 

EPA Method 5 defines procedures to measure particulate emissions from stationary 

sources. Using traverse points determined from EPA Method 1 and incorporating 

procedures from EPA Methods 2, 3, and 4, a sample gas stream is isokinetically drawn 

from the emission stream. To attain isokinetic sampling, a sampling nozzle of a known 

diameter points directly into the oncoming gas steam. The train operator calculates and 

adjusts the gas sampling rate to match the gas velocity entering the nozzle with the 

emission stream velocity. Isokinetic sampling eliminates biases from differing 

particulate aerodynamic characteristics. The particulate dry fraction collects in the 

sampling probe and on a quartz or glass-fiber filter. The probe and filter components of 

the sampling train are unheated per sub part DD. The filtered sample gas stream 

passes through a series of impingers to condense water vapor and collect gaseous 

constituents. The first two impingers initially contain deionized water and a third 

impinger is empty. A desiccant packed drying column follows the impingers to 

quantitatively collect the remaining moisture. An ice bath maintains the impinger train 

temperature (outlet) at 68°F or less. The impinger contents can be discarded or saved 

for additional analyses. Sample recovery and train clean up are performed after each 

run using procedures to ensure sample integrity and quantitative recovery. The train 

operator maintains comprehensive test records on handwritten field data sheets. 

Details of particulate testing are outlined below: 

 Nozzle/Probe Material: Stainless steel and borosilicate glass 

 Filter Holder Material: Borosilicate glass 

 Filter Media: Glass fiber, >99.95% efficient at 0.3 μm 

 Impinger Train Material: Borosilicate glass 

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Page 33 of 37
Impinger Reagents: Deionized water 

 Recovery Reagents: Acetone 

 Deionized water 

 Control Train: Gas meter, orifice, differential pressure gauges, 

 pump, valves, temperature monitors and controllers 

Analytical Techniques: Gravimetric 

EPA Method 9 defines procedures to evaluate the opacity of the plume emitted from a 

source stack. An independently certified visible emissions observer visually estimates 

the opacity of the non-moisture plume from the source. The observer positions 

themselves with the sun (or other light source) at their back and perpendicular to the 

plume when directly facing the emission point. The observer must also ensure a clear 

and contrasting background behind the plume. The certified observer then estimates 

(based on certification trials) the percentage of the background blocked by the source 

plume (plume opacity) in increments of 5%. Observed opacity readings are recorded at 

15-second intervals throughout the run. Tabulated results include run average and 

successive six-minute averages. The spreadsheet software also searches the data set 

for a group of 24 consecutive readings that yield the highest possible six-minute 

average. Details of the opacity evaluation are outlined below. 

 Evaluation Period: One hour 

 Observation Frequency: 15 Seconds 

No. of Observations: 240 

No. of Six-minutes Averages: 10 

Observer Certifications: Semi-annual 

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Page 34 of 37
Pace Analytical

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Page 35 of 37
Pace Analytical

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Page 36 of 37
Report Signatures

Field Testing and Reporting Performed by: Pace Analytical Services, Inc. 

 Field Services Division 

1700 Elm Street, Suite 200 

 Minneapolis, MN 55414 

Field Testing Affirmation

All field testing was performed in accordance with stated test methods subject to modifications 

and deviations listed herein. Raw field data presented in this report accurately reflects results 

and information as recorded at the time of tests or otherwise noted. 

_________________________________ Date _____________ 

Mike Walter 

Field Analyst 

Report Affirmation

To the best of my knowledge, this report accurately represents the compiled field and laboratory 

information with no material omissions, alterations or misrepresentations. 

Responsible Charge Affirmation

I have reviewed the information herein and it is approved for distribution. 

_________________________________ Date _____________ 

Terence J. Borgerding 

Operations Manager, Air 

Pace Analytical

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Page 37 of 37