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AIR QUALITY BUREAU ATTN: Application Log in 502 E 9th St Des
Moines IA 50319
EU4
11/2019 cmc For Assistance 1-877-AIR-IOWA (1-877-247-4692) DNR
Form 542-0936
FORM EU4: COOLING TOWER INFORMATION Please see instructions on
reverse side.
Company Name:
COOLING TOWER (EMISSION UNIT) DESCRIPTION AND SPECIFICATIONS
Tower 1 Tower 2 Tower 3 Tower 4
1. Emission Unit Name
2. Emission Unit (EU) ID
3. Tower Type (N: New, U: Unpermitted, M: Modification)
N U M N U M N U M N U M
4. Current Permit Number (if applicable)
5. Tower On-Site Installation Date
6. Tower Modification Date
7. Number of Cells in Tower
8. Tower Maximum Water Flow Rate
9. Measured Total Dissolved Solids (TDS) Content (if known)
10. Do You Use Additives in the Water?
Yes No Yes No Yes No Yes No
If yes, provide SDS sheets for each additive
11. Are there any mist eliminators? Yes No Yes No Yes No Yes
No
If yes, provide CE ID:
STACK/VENT INFORMATION
12. Emission Point (EP) ID
13. Cell Height from the Ground(ft)
14. Cell Stack Size (in dia. or in x in)
15. Cell Rated Air Flow Rate
( acfm scfm)
16. Total Rated Air Flow Rate
( acfm scfm)
17. Exhaust Exit Temperature (°F)
OPERATING LIMITS
18. Are you requesting any operating limits? Yes No
Operation Hour Limits:
TDS Limits (ppm):
Material Usage Limits:
Other:
Rationale for Requesting the Limit(s):
cconroySticky NoteThe following fields: Company Name, Emission
Unit Name, Emission Unit ID, and Tower Maximum Water Flow Rate (in
red) are required to ensure applicants and projects are identified
consistently. Additionally, please complete ALL fields on this
form. This will ensure faster turnaround time for issuing your
permit.
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EU4
2/2020 cmc For Assistance 1-877-AIR-IOWA (1-877-247-4692) DNR
Form 542-0936
Instructions for Form EU4: Cooling Tower Information
This form is intended for cooling towers and should be used in
place of forms EU, EP, and CE.
Up to four cooling towers may be applied for on this form. If
more than four towers are being installed, please complete an
additional Form EU4.
Understanding EU4 Form Information: Each number provides an
explanation for the corresponding field on the form. Company Name:
This is useful if application pages become separated. Cooling Tower
Description and Specifications 1. Emission Unit Name: Provide the
name of the emission unit, such as “Tower 1,” “Cooling Tower,” etc.
2. Emission Unit (EU) ID: Called the emissions unit (EU)
identification (ID). It can be any combination of letters or
numbers up to 16 characters in length. The ID should match the
ID for this equipment used on previous construction permit
applications and within this application. If also submitting an
operating permit application, the ID used in this application
should be consistent with those used in the operating permit
application.
3. Tower Type: Mark the type of cooling tower, such as a new
cooling tower to be constructed, an existing cooling tower
(as-built) needing a permit for the first time, or a cooling
tower that already has an existing construction permit that you are
requesting be modified.
4. Current Permit Number: If this is a modification to a cooling
tower with an existing construction permit, provide the current
construction permit number for the cooling tower.
5. Tower On-Site Installation Date: Provide the date when
on-site installation of the equipment began or will begin,
including the month and year.
6. Tower Modification Date: Provide the month and year of last
modification. In the case of proposed modification,
provide the best estimate of modification date. For the purpose
of this form, Modification means any physical change or change in
method of operation of any existing equipment or control
equipment.
7. Number of Cells in Tower: Provide the number of cells in this
cooling tower.
8. Tower Maximum Water Flow Rate: Provide the total maximum
water flow rate of this cooling tower and the units of measure used
to describe that flow rate (e.g. gallons per minute, gallons per
hour, etc.).
9. Measured TDS Content: If data is available, provide the
maximum Total Dissolved Solids (TDS) content of the water.
10. Additives in the Water: If any additives are used in the
water (biocide, chromium, anti-corrosion agents, etc.) provide a
Safety Data Sheet (SDS) for each additive. Indicate the amount of
additive used in gallons per month. SDS can be obtained from the
additive supplier.
11. Mist Eliminators: Indicate if there are mist eliminators
associated with the cooling tower. If so, complete a Form CE8
for each mist eliminator and proved the corresponding CE ID.
Stack/Vent Information 12. Emission Point (EP) ID: Provide the
emission point (EP) ID for the stack/vent. It can be any
combination of letters or
numbers up to 16 characters in length. The ID should match the
ID for this equipment used on previous construction permit
applications and within this application. If also submitting an
operating permit application, the ID used in this application
should be consistent with those used in the operating permit
application.
13. Cell Height from the Ground: Provide the height in feet of
the top of the cell(s) from the ground.
14. Cell Stack Size: Provide size of the cell openings. It could
be inches diameter for circular openings, or inches times inches
for rectangular, square, or other shapes.
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EU4
2/2020 cmc For Assistance 1-877-AIR-IOWA (1-877-247-4692) DNR
Form 542-0936
15. Cell Rated Air Flow Rate: Indicate the rated exhaust flow
rate in either actual or standard cubic feet (check the appropriate
box) for each cell in the cooling tower.
16. Total Rated Air Flow Rate: Indicate the rated exhaust flow
rate in either actual or standard cubic feet (check the appropriate
box) for the entire cooling tower.
17. Exhaust Exit Temperature: Provide the temperature of the
exhaust at the cooling tower in degrees Fahrenheit. Operating
Limits 18. Operating Limits: If you wish to have permit limits
placed on the cooling tower, mark “Yes.” Then, check each type
of
limit that you would like applied to this emission unit and
provide the requested limit. For example, operating hour limits may
be in terms of hours per year; material usage limits may be in
gallons of additive per year. If you are not sure about a requested
operating limit, contact the Air Quality Bureau at
1-877-AIR-IOWA.
Company Name: 18 Are you requesting any operating limits:
OffRationale for Requesting the Limits: 1: Emission Unit Name T1:
Emission Unit Name T2: Emission Unit Name T3: Emission Unit Name
T4:
2: Emission Unit EU ID T1: Emission Unit EU ID T2: Emission Unit
EU ID T3: Emission Unit EU ID T4:
3: Tower Type N T1: Off Tower Type U T1: Off Tower Type M T1:
Off Tower Type N T2: Off Tower Type U T2: Off Tower Type M T2: Off
Tower Type N T3: Off Tower Type U T3: Off Tower Type M T3: Off
Tower Type N T4: Off Tower Type U T4: Off Tower Type M T4: Off
4: Current Permit Number T1: Current Permit Number T2: Current
Permit Number T3: Current Permit Number T4:
5: Tower On-Site Installation Date T1: Tower On-Site
Installation Date T2: Tower On-Site Installation Date T3: Tower
On-Site Installation Date T4:
6: Tower Modification Date T1: Tower Modification Date T2: Tower
Modification Date T3: Tower Modification Date T4:
7: Number of Cells in Tower T1: Number of Cells in Tower T2:
Number of Cells in Tower T3: Number of Cells in Tower T4:
8: Tower Max Water Flow Rate T1: Tower Max Water Flow Rate T2:
Tower Max Water Flow Rate T3: Tower Max Water Flow Rate T4:
9: Measured TDS Content T1: Measured TDS Content T2: Measured
TDS Content T3: Measured TDS Content T4:
If yes, provide CE ID T1: If yes, provide CE ID T2: If yes,
provide CE ID T3: If yes, provide CE ID T4: Do you Use Additives?
T1: OffDo you Use Additives? T2: OffDo you Use Additives? T3: OffDo
you Use Additives? T4: OffAre there any mist eliminators? T1:
OffAre there any mist eliminators? T2: OffAre there any mist
eliminators? T3: OffAre there any mist eliminators? T4: Off12:
Emission Point EP ID T1: Emission Point EP ID T2: Emission Point EP
ID T3: Emission Point EP ID T4:
13: Cell Height from Ground T1: Cell Height from Ground T2: Cell
Height from Ground T3: Cell Height from Ground T4:
14: Cell Stack Size T1: Cell Stack Size T2: Cell Stack Size T3:
Cell Stack Size T4:
15: Cell Rated Air Flow T1: Cell Rated Air Flow T2: Cell Rated
Air Flow T3: Cell Rated Air Flow T4: Cell Rated Air Flow acfm: Off
Cell Rated Air Flow scfm: Off
16: Total Rated Air Flow Rate T1: Total Rated Air Flow Rate T2:
Total Rated Air Flow Rate T3: Total Rated Air Flow Rate T4: Total
Rated Air Flow Rate acfm: Off Total Rated Air Flow Rate scfm:
Off
17: Exhaust Exit Temp T1: Exhaust Exit Temp T2: Exhaust Exit
Temp T3: Exhaust Exit Temp T4:
Operation Hour Limits T1: Operation Hour Limits T2: Operation
Hour Limits T3: Operation Hour Limits T4: TDS Limits T1: TDS Limits
T2: TDS Limits T3: TDS Limits T4: Material Usage Limits T1:
Material Usage Limits T2: Material Usage Limits T3: Material Usage
Limits T4: Other T1: Other T2: Other T3: Other T4: