ICR Number XXXX.XX Plant ID: Insert Plant ID

OMB Control Number: XXXX-XXXX Plant Name: Insert Plant Name

Expiration Date: mm/dd/yyyy

Section Title Tab Name

Part B Instructions Part B Instructions

General FGD System Information Part B Section 1

Planned FGD System Information Part B Section 2

FGD Additive Information Part B Section 3

Wet FGD System Information Part B Section 4

FGD Solids Disposition and Marketing for Wet FGD Systems Part B Section 4 Tables

FGD Wastewater Generation Part B Section 5

FGD Monitoring Data Instructions Part B Section 6

FGD Monitoring Data Part B Section 6 Table

FGD Wastewater Treatment Part B Section 7

Dry FGD System Information Part B Section 8

FGD Solids Disposition and Marketing for Dry FGD systems Part B Section 8 Tables

Part B Comments Part B Comments

Steam Electric Questionnaire Code Tables Code Tables

Steam Electric Questionnaire 

Second FRN Version Draft

PART B - FLUE GAS DESULFURIZATION (FGD) SYSTEMS

Table of Contents

Version: February 22, 2010
Steam Electric Questionnaire Part B. Instructions

Plant ID: Insert Plant ID

Plant Name: Insert Plant Name

PART B. FLUE GAS DESULFURIZATION (FGD) SYSTEMS

Use the Part B Comments tab to do the following: provide additional information as 

requested in certain questions within Part B; indicate atypical data (e.g., if 2009 

information is not representative of normal operations); and note methods used to make 

best engineering estimates in the event that exact data are not available.

Throughout Part B, information is requested on FGD systems that are under 

construction/installation or planned to be constructed/installed by December 31, 2020. 

Provide design information, or best engineering estimates as necessary, for these 

planned systems. 

As you are completing the electronic form, note the following: When you enter your plant 

name and plant ID on the Part B Table of Contents tab, all name and ID fields 

throughout Part B will automatically populate. Refer to the overall questionnaire 

instructions, the glossary, and the acronym list for assistance with completing Part B. 

INSTRUCTIONS

Part B requests information about flue gas desulfurization (FGD) systems that are 

located at the plant or are planned to be located at the plant. Complete Part B if you 

operate one or more FGD systems, or if you are currently constructing/installing or 

planning to construct/install one or more FGD systems by December 31, 2020. 

Please provide all free response answers in the highlighted yellow areas. Throughout 

Part B, you may need to make copies of certain sections/questions for multiple FGD 

systems. Instructions are provided throughout Part B regarding making copies. Note 

that system ID fields must be populated on the copied tab or section, located in the 

upper right corner under "Plant ID" and "Plant Name", in order to correlate the requested 

information with the correct system. 

Version: February 22, 2010
Steam Electric Questionnaire Part B. Flue Gas Desulfurizatio

Plant ID:

Plant Name:

Part: B

Section Title: 1. General FGD System Information

 Instructions:

CBI? B1-1.

(Continue)(Skip to next Questionnaire Part)

CBI? B1-2.

Part B requests information about flue gas desulfurization (FGD) systems that are located at the plant or are planned to be located at the plant that are used to service fossil-fuel

generating units. See Part A Section 8 for unit classifications. Complete Part B if you operate one or more FGD systems , or if you are currently constructing/installing or plannin

constructing one or more FGD systems to service fossil-fueled electric generating units.

Figure B-1. Example Recirculation Wet FGD Scrubber System Diagram

Insert PlaInsert Pla

Does the plant operate one or more flue gas desulfurization (FGD) systems that service fossil-fueled steam electric generating units, or is the plant currently constructing/installin

to construct/install one or more FGD systems to service fossil-fueled steam electric generating units by December 31, 2020? 

Complete Table B-1 for each FGD system that the plant operates that services fossil-fueled electric generating units, or is currently constructing/installing or planning to construc

service fossil-fueled electric generating units by December 31, 2020. Assign an FGD system ID to each FGD system using the drop down menu provided. Assign the FGD syste

sequentially using the numbered IDs (e.g., FGD-1, FGD-2) for the systems currently operating. Assign the FGD systems sequentially using the lettered IDs (e.g., FGD-A, FGD-B

systems that are planned to operate. Enter the date the system initially began operation or is planned to begin operation. Identify each steam electric unit (currently operating or that is serviced by each FGD system using the codes EPA assigned to steam electric units in Table A-8 and/or Table A-9. Identify the type of oxidation performed in the FGD sywet FGD systems (Note: mark "Not Applicable" for dry FGD systems). Also provide the design sulfur dioxide removal efficiency for each FGD system. 

Wet FGD systems capture sulfur dioxide from the flue gas using a wet slurry that generates a process wastewater that exits the scrubber absorber, shown as FGD slurry blowdo

1 for recirculation scrubbers, or as FGD slurry discharge in Figure B-2 for single pass scrubbers. Indicate for each FGD system if FGD slurry blowdown (or FGD slurry dischargeUse the drop down boxes to identify the type of FGD system and to specify the type(s) of sorbents used in the system. If a sorbent used is not provided in the drop down, identifprovide the type(s) of sorbent in the yellow highlighted box to the right.

Yes

YesNo

Yes

B-1 
Steam Electric Questionnaire Part B. Flue Gas Desulfurizatio

Figure B-2. Example Single Pass Wet FGD Scrubber System Diagram

B-2 
Steam Electric Questionnaire Part B. Flue Gas Desulfurizatio

Date System 

Initially Brought 

On Line, or 

Planned to be 

Brought On Line

(month/year)

Steam Electric Units from Table A8 and/or A-9 Serviced by This FGD 

System 

[check all boxes that apply]

Does (or Will) the 

System Generate a 

FGD Slurry 

Blowdown (or Slurry 

Discharge) Stream 

(i.e., is it a wet 

system)?

Type of 

Oxidation 

(Forced, 

Natural, or 

Inhibited)

Type of FGD 

System

Primary:

01/1995 Secondary: 

Tertiary:Quaternary:Primary:Secondary:Tertiary:Quaternary:Primary:Secondary:Tertiary:Quaternary:Primary:Secondary:Tertiary:Quaternary:Primary:Secondary:Tertiary:Quaternary:Primary:Secondary:Tertiary:Quaternary:Primary:Secondary:Tertiary:Quaternary:Primary:Secondary:Tertiary:Quaternary:Primary:Secondary:Tertiary:Quaternary:

Example:

Table B-1. FGD Systems in Operation or Planning to be Operated by December 31, 2020

FGD System ID Type of Sorbent

Spray

ForcedInhibitedNaturalNot Applicable

YesNo

FGD-1

SE Unit 1SE Unit 2SE Unit 3SE Unit 4SE Unit 5

SE Unit 8SE Unit 9SE Unit 7SE Unit 6 SE Unit A

SE Unit BSE Unit CSE Unit D

LimestoneSoda AshNot ApplicableNot Applicable

Type of FGD System

ForcedInhibitedNaturalNot Applicable

YesNo

FGD System ID

SE Unit 1SE Unit 2SE Unit 3SE Unit 4SE Unit 5

SE Unit 8SE Unit 9SE Unit 7SE Unit 6 SE Unit A

SE Unit BSE Unit CSE Unit D

Type of SorbentType of SorbentType of SorbentType of Sorbent

Type of FGD System

ForcedInhibitedNaturalNot Applicable

YesNo

FGD System ID

SE Unit 1SE Unit 2SE Unit 3SE Unit 4SE Unit 5

SE Unit 8SE Unit 9SE Unit 7SE Unit 6 SE Unit A

SE Unit BSE Unit CSE Unit D

Type of SorbentType of SorbentType of SorbentType of Sorbent

Type of FGD System

ForcedInhibitedNaturalNot Applicable

YesNo

FGD System ID

SE Unit 1SE Unit 2SE Unit 3SE Unit 4SE Unit 5

SE Unit 8SE Unit 9SE Unit 7SE Unit 6 SE Unit A

SE Unit BSE Unit CSE Unit D

Type of SorbentType of SorbentType of SorbentSelect

Type of FGD System

ForcedInhibitedNaturalNot Applicable

YesNo

FGD System ID

SE Unit 1SE Unit 2SE Unit 3SE Unit 4SE Unit 5

SE Unit 8SE Unit 9SE Unit 7SE Unit 6 SE Unit A

SE Unit BSE Unit CSE Unit D

Type of SorbentType of SorbentType of SorbentType of Sorbent

Type of FGD System

ForcedInhibitedNaturalNot Applicable

YesNo

FGD System ID

SE Unit 1SE Unit 2SE Unit 3SE Unit 4SE Unit 5

SE Unit 8SE Unit 9SE Unit 7SE Unit 6 SE Unit A

SE Unit BSE Unit CSE Unit D

Type of SorbentType of SorbentType of SorbentType of Sorbent

Type of FGD System

ForcedInhibitedNaturalNot Applicable

YesNo

FGD System ID

SE Unit 1SE Unit 2SE Unit 3SE Unit 4SE Unit 5

SE Unit 8SE Unit 9SE Unit 7SE Unit 6 SE Unit A

SE Unit BSE Unit CSE Unit D

Type of SorbentType of SorbentType of SorbentType of Sorbent

Type of FGD System

ForcedInhibitedNaturalNot Applicable

YesNo

FGD System ID

SE Unit 1SE Unit 2SE Unit 3SE Unit 4SE Unit 5

SE Unit 8SE Unit 9SE Unit 7SE Unit 6 SE Unit A

SE Unit BSE Unit CSE Unit D

Type of SorbentType of SorbentType of SorbentType of Sorbent

Type of FGD System

ForcedInhibitedNaturalNot Applicable

YesNo

FGD System ID

SE Unit 1SE Unit 2SE Unit 3SE Unit 4SE Unit 5

SE Unit 8SE Unit 9SE Unit 7SE Unit 6 SE Unit A

SE Unit BSE Unit CSE Unit D

Type of SorbentType of SorbentType of SorbentType of Sorbent

B-3 
Steam Electric Questionnaire 

Part: B

Section Title:

 Instructions:

CBI? B2-1.

Maximum 

(gpm)

Example HYC-1, VFB-1 EQ-P, CP-1-1, CL-P-1, PH1, FLT-S-1 1,200 

a – This question refers to the blowdown solids handling, not the treatment system solids handling.

Complete Table B-2 for each FGD system under construction/installation or planned to be constructed/installed by December 31, expected to generate FGD slurry blowdown. Enter the planned method for handling solids generated, whether FGD scrubber purgthe type of wastewater treatment system , the design maximum and 24-hour daily average flow rate for the treatment system, and brought on line. Use codes from the Code Tables tab, as appropriate, and separate multiple entries with commas. If you do not k

system that will be installed or the flow rate of the treatment system, enter "Unknown" into the appropriate columns in the table.Throughout this section, provide information for all FGD systems under construction/installation or planned to be constructed/instreported in Table B-1 and are expected to generate FGD slurry blowdown . Please provide all free response answers in the highlig

2. Planned FGD System Information

Table B-2. FGD Systems Planned or Under Construction/Installation

Type of Wastewater 

Treatment System 

Planned to Treat FGD 

Scrubber Purge(or Slurry 

Discharge) (See 

Wastewater Treatment 

Units Table in Code 

Tables Tab)

Design Flow 

FGD Treatme

FGD System ID 

Planned Solids Handling 

for the FGD Slurry 

Blowdown (See Solids 

Handling Table in Code 

Tables Tab) a

Will System 

Generate 

FGD 

Scrubber 

Purge (or 

Slurry 

Discharge)?

Will FGD 

Scrubber Purge 

(or Slurry 

Discharge) be 

Treated by New 

or Existing 

Treatment 

System

Yes

New

FGD System ID (no planned)FGD System ID (no planned)FGD System ID (no planned)FGD System ID (no planned)FGD System ID (no planned)FGD System ID (no planned)

Yes/No

FGD-A

New/ExistingNew/ExistingNew/ExistingNew/ExistingNew/ExistingNew/Existing

YesYes/NoYes/NoYes/NoYes/NoYes/No

B-4 
Steam Electric Questionnaire Pa

Part: B

Section Title: 3. FGD Additive Information

 Instructions:

CBI? B3-1.

Additive

FGD System(s) in which Additive is Used or 

is Planned to be Used

Sodium thiosulfate

Throughout this section, provide information for all FGD Systems listed in Table B-1. Please provide all free respo

areas. In Table B-3, indicate the additive(s) used or planned to be used in each FGD system listed in Table B-1, and prov[Check all boxes that apply.] 

Table B-3. FGD Additive Information

Purpose o

Adipic acid

Elemental sulfur

Dibasic acid (DBA)

Formic acid

Organosulfide

Yes

FGD 1FGD 2FGD 3

FGD 4FGD 5FGD 6

FGD AFGD BFGD C

Increase sulfur dioxide removal Increase mInhibit oxidation of FGD solids Scale inhib

FGD 1FGD 2FGD 3

FGD 4FGD 5FGD 6

FGD AFGD BFGD C

FGD 1FGD 2FGD 3

FGD 4FGD 5FGD 6

FGD AFGD BFGD C

FGD 1FGD 2FGD 3

FGD 4FGD 5FGD 6

FGD AFGD BFGD C

FGD 1FGD 2FGD 3

FGD 4FGD 5FGD 6

FGD AFGD BFGD C

Increase sulfur dioxide removal Increase mInhibit oxidation of FGD solids Scale inhibIncrease sulfur dioxide removal Increase mInhibit oxidation of FGD solids Scale inhibIncrease sulfur dioxide removal Increase mInhibit oxidation of FGD solids Scale inhibIncrease sulfur dioxide removal Increase mInhibit oxidation of FGD solids Scale inhib

FGD 1FGD 2FGD 3

FGD 4FGD 5FGD 6

FGD AFGD BFGD C

Increase sulfur dioxide removal Increase mInhibit oxidation of FGD solids Scale inhib

B-5 
Steam Electric Questionnaire Pa

Other (specify below):Other (specify below):

None

FGD 1FGD 2FGD 3

FGD 4FGD 5FGD 6

FGD AFGD BFGD C

FGD 1FGD 2FGD 3

FGD 4FGD 5FGD 6

FGD AFGD BFGD C

FGD 1FGD 2FGD 3

FGD 4FGD 5FGD 6

FGD AFGD BFGD C

Increase sulfur dioxide removal Increase mInhibit oxidation of FGD solids Scale inhibIncrease sulfur dioxide removal Increase mInhibit oxidation of FGD solids Scale inhib

B-6 
Steam Electric Questionnaire Part B. F

FG

Part: B

Section Title: 4. Wet FGD System Information

 Instructions:

CBI? B4-1.

(Continue)

(Skip to Section 8)

CBI? B4-2.

Minimum operating concentration: ppmMaximum operating concentration: ppmThroughout this section, you will be required to provide information for each wet FGD system that the plant oper

section does not need to be completed for planned systems. Please provide all free response answers in the highMake copies of Section 4 and the Section 4 tables for each wet FGD system previously defined in Table Band Section 4 Tables" button below. Please note that you will create two new tabs for these sections. Yif accidently created. Enter the FGD system ID in the space provided above (use FGD system IDs assignDid you report use of a FGD system that generates FGD slurry blowdown (i.e., wet system) in Table B-1?Provide the operating concentration range of chlorides within the FGD scrubber absorber .

Copy Section 4 and Section 4 Tables

YesYes

YesNo

B-7 
Steam Electric Questionnaire Part B. F

CBI? B4-3.

FGD system maximum design chlorides concentration: ppmFGD equipment that determines maximum design concentration: FGD equipment that determines maximum design concentration: FGD equipment that determines maximum design concentration: FGD equipment that determines maximum design concentration: 

CBI? B4-4.

ppm

and %

CBI? B4-5.

ppm%

CBI? B4-6.

gpmhpddpy

Provide the maximum design chlorides concentration for the FGD system and indicate which specific equipment determine this concentration (e.g., FGD scrubber absorber, piping). Also provide the materials of construction for 

determine the maximum design chlorides concentration. If multiple materials are used in the construction of the F

the maximum design chlorides concentration, identify the component that is the most vulnerable to corrosion due material of construction is not provided in the drop down menu, select "other" and provide the name in the yellow 

Provide the typical flow rate, duration, and frequency of the mist eliminator wash water for the FGD system for ca

data for systems that were not operating in 2009.Indicate the FGD system parameter(s) that are used to determine when the FGD slurry is blown down from the F

apply.] For water sources that may be used as a source of FGD reagent preparation water or absorber make-up water (process water), indicate the maximum chlorides concentration and maximum solids percentage that is acceptable those purposes. Identify any other criteria that the source water must meet.

Chlorides concentration, maintained less thanSolids percentage, maintained between Other, explain: Chlorides concentration:Solids percentage:Other, explain: 

Yes

Select

YesYesYes

SelectSelectSelect

B-8 
Steam Electric Questionnaire Part B. F

CBI? B4-7.

gpmhpddpy

CBI? B4-8.

gpmhpddpy

CBI? B4-9.

gpmhpddpy

CBI? B4-10.

Provide the typical flow rate, duration, and frequency of the FGD reagent preparation water for the FGD system f

2010 data for systems that were not operating in 2009.Provide the typical flow rate, duration, and frequency of the FGD reagent slurry for the FGD system for calendar ysystems that were not operating in 2009.Provide the source of the mist eliminator wash water used. [Check all boxes that apply.] If the source is a proces

dropdown box, select other and provide in the yellow box the name of the process wastewater and a short descri

Provide the typical flow rate, duration, and frequency of the absorber make-up water for the FGD system for cale

data for systems that were not operating in 2009.

Raw intake waterIntake water that has been treated on site prior to useProcess wastewaterOther, explain: 

Process Wastewater

YesYesYesYes

B-9 
Steam Electric Questionnaire Part B. F

CBI? B4-11.CBI? B4-12.CBI? B4-13.

% FGD solids generated % FGD solids generated % FGD solids generated % FGD solids generated 

CBI? B4-14.

(Continue)(Skip to Question B4-16)

Provide the source of the FGD reagent preparation water used. [Check all boxes that apply.] If the source is a pro

the dropdown box, select other and provide in the yellow box the name of the process wastewater and a short deProvide the source of the absorber make-up water used. [Check all boxes that apply.] If the source is a process wdropdown box, select other and provide in the yellow box the name of the process wastewater and a short descri

Indicate the type of solids that are generated within the FGD scrubber system. Also provide the approximate perc

generated within the FGD system for each type (e.g., 85% calcium sulfate, 15% calcium sulfite).

Are the FGD solids combined with fly ash , bottom ash , or other material? 

Raw intake waterIntake water that has been treated on site prior to useProcess wastewater Other, explain: Calcium sulfate (gypsum)Calcium sulfiteOther, explain: Other, explain: 

Process Wastewater

YesYesYes

Intake water that has been treated on site prior to useProcess wastewaterOther, explain: 

Process Wastewater

Yes

Raw intake waterYesNo

B-10 
Steam Electric Questionnaire Part B. F

CBI? B4-15.CBI? B4-16.CBI? B4-17.CBI? B4-18.

Typical concentration: ppmMinimum concentration: ppmMaximum concentration: ppmProvide the typical, maximum, and minimum chlorides concentration of the FGD solids produced by the FGD sys

chlorides concentration should be given on a wet basis (i.e., analysis of the FGD with the moisture content includconcentration is not known on a wet basis, provide the dry-basis concentration and note that it is a dry-basis conc

Indicate the method of FGD solids dewatering used by the plant for the FGD solids. [Check all boxes that apply.] 

Is a cementitious/pozzolanic material produced with the FGD solids at the plant?

Indicate the methods of FGD solids separation used by the plant for FGD slurry blowdown (or slurry discharge). example of a FGD solids separation system. Note that FGD solids separation and FGD solids dewatering are seboxes that apply.] 

HydrocyclonesCentrifugeThickenerOther, explain: Blowdown sent directly to a pond system reported in Table D-1 (no FGD solids separation process)Blowdown sent directly to wastewater treatment system reported in Table D-2 (no FGD solids separation process)Vacuum drum filterVacuum belt filterGypsum stackingOther, explain: 

YesYesYesYes

YesNo

B-11 
Steam Electric Questionnaire Part B. F

CBI? B4-19.

ppmppm

ppm

What parameters affect the ability of the FGD solids to be marketed, sold and/or given away? [Check all boxes th

Chlorides content: Moisture content: Other, specify: None – Industry(ies) to which the FGD solids are marketed has not specified standards for the solids. N/A – FGD solids are not marketed, sold, or given away. 

Yes

B-12 
Steam Electric Questionnaire Part B. Flue Gas Desulfurizatio

Plant ID: Inser

Plant Name: Inser

FGD System ID: Inser

Part: B

Section Title: 4. FGD Solids Disposition and Marketing for Wet FGD Systems

 Instructions:

CBI? B4-20.

Stored permanentlyStored temporarily (later hauled offsite/marketed)Stored permanentlyStored temporarily (later hauled offsite/marketed)

Other, explain: Other, explain: Throughout this section, you will be required to provide information on FGD solids disposition for each wet FGD system that the pla

reported in Table B-1. This section does not need to be completed for planned systems. Please provide all free response answers in 

highlighted yellow areas. 

Table B-4. FGD Solids Disposition for 2005, 2007, and 2009

In Table B-4, indicate the ultimate destination of FGD solids from the FGD system and provide the tonnage for each type of storage/htechnique for calendar years 2005, 2007, and 2009. If the FGD solids are stored in an on-site landfill or pond/impoundment , includinlocated on non-adjoining property, provide the amount of FGD solids stored permanently and/or temporarily.For example, a plant may operate a gypsum stacking operation using a pond/impoundment, and some amount of FGD solids that ar

to the pond/impoundment are dewatered and sold for use in wallboard manufacturing. In this case, the amount of FGD solids sold fomanufacturing should be identified in BOTH the "Sent to Pond/Impoundment reported in Table A-4: Stored temporarily" category AN

"Marketed and Sold" category. In this same example, all the FGD solids that are transferred to the pond/impoundment and either lefbottom of the pond/impoundment or used in increase the banks of the pond/impoundment should be identified as "Sent to Pond/Imporeported in Table A-4: Stored permanently." 

Ultimate Destination of FGD Solids Amount Disp

(ton

Amount Disposed in 2005 

(tons)

Amount Disposed in 2007 

(tons)

Sent to Landfills reported in Table A-6Marketed and soldGiven awaySent to Pond/Impoundment reported in Table A-4Sent to Pond/Impoundment not reported in Table A-4

Sent to Landfills not reported in Table A-6

Yes

B-13 
Steam Electric Questionnaire Part B. Flue Gas Desulfurizatio

CBI? B4-21.

Tons Gross Revenue Generated ($) Tons Gross Revenue Generated ($) Tons Gro

Ge

CBI? B4-22.

$ $ $

Solids dewatering $ $ $

$ $ $$ $ $$ $ $

Other: $ $ $Other: $ $ $Other: $ $ $Total $ $ $Cost of off site disposal Complete Table B-5 if the plant markets, sells, and/or gives away the FGD solids from this FGD system. For each destination, provid

FGD solids for which the FGD solids are marketed, sold, and/or given away. Also provide the gross revenue generated from marketin

FGD solids for each destination.

Table B-5. FGD Solids Marketed/Sold in 2005, 2007, and 2009

Destination

2005 2007

Solids separation Hauling FGD solidsCost of on site disposal 

Process

In Table B-6, provide the total cost incurred to remove or dispose of FGD solids from 2005 to 2009 including the cost for labor, mater

transportation, and energy. Also provide the cost by component. Include other components not provided in the list of processes in the provided.

Table B-6. Cost Incurred to Remove or Dispose of FGD Solids in 2005, 2007, and 2009

Total Cost

2005 2007 20

Total Costs Incurred Total Costs Incurred

20

YesYes

FGD Solids MarketingFGD Solids MarketingFGD Solids MarketingFGD Solids MarketingFGD Solids MarketingFGD Solids Marketing

B-14 
Steam Electric Questionnaire Part B. Flue Gas Des

Plant ID:

Plant Name:

Part: B

Section Title: 5. FGD Wastewater Generation

 Instructions:

CBI? B5-1.

Percent

80%20%

OtherOtherOtherOtherOtherOtherOtherCTB

Example:

FGD Reagent Preparation Water, Absorber Make-Up Water, and Mist Eliminator Wash 

Water

(Sources, Percent Contribution, and Flow Rate)

Source(s)

FGDB

FGD System ID

Flow Rate

(gpd)

48,00012,000

Table B-7. FGD System Water Sources and Flow Rates

In Table B-7, provide information for each wet FGD system that the plant operates reported in Table B-1. This table does not need to be completed for p

the source of FGD reagent preparation water, absorber make-up water, and mist eliminator wash water, you may enter more than one source. Select a sdropdown menu. For the percent contribution of the flow rates, provide the percentage based on the total flow rate for all these sources entering the FG

Throughout this section, you will be required to provide information for all wet FGD systems that the plant operates, reported in Table B-1. This section d

completed for planned systems. Please provide all free response answers in the highlighted yellow areas. 

FGD System Water SourceFGD System Water SourceFGD System Water Source

FGD System ID

FGD-1

SelectSelectSelect

Select

SelectSelectSelect

Select

SelectSelectSelect

Select

SelectSelectSelect

Select

SelectSelectSelect

Select

Yes

FGD System Water SourceFGD System Water SourceFGD System Water Source

FGD System ID

FGD System Water SourceFGD System Water SourceFGD System Water Source

FGD System ID

Bottom ash sluiceFGD System Water SourceFGD System Water Source

FGD System ID

FGD System Water SourceFGD System Water SourceFGD System Water Source

FGD System ID

FGD System Water SourceFGD System Water SourceFGD System Water Source

FGD System ID

B-15 
Steam Electric Questionnaire Part B. Flue Gas Des

CBI? B5-2.

200 gpm 

240,000 12 to 16 120,000 gpd 

gpm 

to gpd 

gpm 

to gpd 

gpm 

to gpd 

gpm 

to gpd 

gpm 

to gpd 

gpm 

to gpd 

CBI? B5-3.

ppmppm

Typical Range of Percent 

Solids of FGD Slurry 

Blowdown (or Slurry 

Discharge) Exiting the 

Absorber

(%)

Typical Amount of FGD 

Scrubber Purge (or 

Slurry Discharge) Sent 

to Wastewater 

Treatment or Discharge

(gpm AND gpd)

Typical Amount 

of Solids 

Separation 

Recycle 

Returned to 

Absorber

(gpd)

180,000

Typical FGD Slurry 

Blowdown (or Slurry 

Discharge) Flow Rate Exiting 

the Absorber

FGD System ID (gpd)

Example:

Absorber Type

In Table B-8, provide information for each wet FGD system that the plant operates reported in Table B-1. This table does not need to be completed for p

Table B-8. Water Generated from Wet FGD Systems

Provide the typical chlorides and solids concentrations of the untreated FGD scrubber purge (or slurry discharge ) transferred to the wastewater treatme

FGD solids separation process, but prior to commingling with other process wastewater).

Yes

FGD-1 Recirculation

FGD System ID (no planned) Recirculation/Single Pass

FGD System ID (no planned) Recirculation/Single PassFGD System ID (no planned) Recirculation/Single Pass

FGD System ID (no planned) Recirculation/Single PassFGD System ID (no planned) Recirculation/Single Pass

FGD System ID (no planned) Recirculation/Single Pass

Yes

Chlorides content: Total suspended solids (TSS): 

B-16 
Steam Electric Questionnaire Part B. Flue Gas Desulfu

Plant ID: Insert Plant ID

Plant Name: Insert Plant Name

Part: B

Section Title: 6. FGD Monitoring Data Instructions

 Instructions:

CBI? B6-1.

(Provide the monitoring data as instructed below)

(Skip to Section 7)

Has your plant collected monitoring data (for any reason) for untreated FGD scrubber purge (or slurry discharmonths prior to recieving the ICR for any of the following analytes:Note: The untreated FGD scrubber purge (or slurry discharge) stream is the FGD wastewater stream l

separation process prior to commingling with other water streams (see Figures B-1 and B-2). Throughout this section, you will be required to provide monitoring data for all wet FGD systems that the plan

in Table B-1. This section does not need to be completed for planned systems. Please provide all free respon

highlighted yellow areas. 

• Metals (including monitoring data for total recoverable or dissolved metals analyses, or trace metals analy• Ammonia;• Nitrate/nitrite; and• Total Kjeldahl nitrogen (TKN).

Note: You are not required to perform non-routine tests or measurements solely for the purpose of requestion.

Provide the monitoring data in Table B-9 in the tab labeled "Part B Section 6 Table" for each different FGD scfor which the plant collected monitoring data. Report all results. Identify results that are less than the method (MDL), and results that are between the detection and reporting limits. Copy Table B-9 as many times as needTable B-9" button below. 

Yes

YesNo

Copy Table B-9

B-17 
Steam Electric Questionnaire Part B. Flue Gas Desulfu

The following information should be provided for each data point:

• Name of analyte and CAS Number;• Measured value including units (if not detected, list the detection limit value preceded by a less than (<) sy• Analytical method used;• Sample-specific detection limit for the method used;• Sample-specific nominal quantitation limit stipulated for the method used;• Date the sample was collected;• Location where the sample was collected (e.g., purge tank which collects secondary hydroclone overflow);• Whether the sample was collected as a grab or as a composite (and note the compositing period used);• Description of any qualifiers for the measurement;• For metals, whether the sample was analyzed as total recoverable or dissolved;• Flow rate (only if flow rate data were recorded at the sampling point during the sampling period).• Identification of FGD system(s) and steam electric generating unit(s) that the sample represents (report FG System IDs and associated steam electric generating units from Table B-1); and

Note: If you operate mulitiple FGD solids separation processes (e.g., two sets of hydroclones), only provide m

collected after the last solid separation process. If necessary, you may provide additional information regardin

collection techniques or analytical methods in the Comments section (e.g., sample collection followed EPA Me

protocols, dynamic reaction cell was used in conjunction with analytical method).

B-18 
Steam Electric Questionnaire 

Part: B

Section Title: 6. FGD Monitoring Data

 Instructions:

CBI? B6-2.

Value Units Value Units Value Units

Date 

Sample 

Collected

Location 

Collected

Collected as 

a Grab or 

Composite

Descri

of Qua

Method 

Detection Limit

Measured 

Value Including 

Units* Reporting Limit

Analyte

CAS 

Number

Analytical 

method

Identify the FGD systems and steam electric generating units associated with the FGD scrubber purge (or slurry discharge) monitoring data pro

system IDs identified in Table B-1 and the SE unit IDs identified in Table A-8. [Check all that apply.]Complete Table B-9 for all monitoring data for untreated FGD scrubber purge (or slurry discharge) collected by the plant (for any reason) in the 

any of the following analytes: metals (including monitoring data for total recoverable or dissolved metals analyses), ammonia, nitrate/nitrite, and separate table for each different FGD scrubber purge (or slurry discharge) stream for which the plant is providing monitoring data. Report all rethe method detection limit (MDL), and results that are between the detection and reporting limits. For Question B6-2, identify the FGD systems associated with the FGD scrubber purge data provided in the table. Refer to the instructions in Part B Section 6 if you need assistance complet

Throughout this section, you will be required to provide information on monitoring data for untreated FGD scrubber purge (or slurry discharge ) f

operates, reported in Table B-1. This section does not need to be completed for planned systems. Please provide all free response answers in 

Table B-9. Monitoring Data for Untreated FGD Scrubber Purge (or Slurry Discharge)

Yes

Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite 

FGD-1FGD-2FGD-3

FGD-4FGD-5FGD-6

SE Unit-1SE Unit-2SE Unit-3

SE Unit-4SE Unit-5SE Unit-6

SE Unit-7SE Unit-8SE Unit-9

SE Unit-10

B-19 
Steam Electric Questionnaire 

*If not detected, list the detection limit value preceded by a less than (<) symbol**Only answer for metals

Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite Units Units Units Grab/Composite 

B-20 
Steam Electric Questionnaire Part B. 

Part: B

Section Title: 7. FGD Wastewater Treatment

 Instructions:

CBI? B7-1.

(Continue)(Skip to Question B7-4)

CBI? B7-2.CBI? B7-3.

Does the plant transfer the FGD scrubber purge (or slurry discharge ) to a settling pond ? Throughout this section, you will be required to provide information for all wet FGD systems that the 

B-1. This section does not need to be completed for planned systems. Please provide all free responyellow areas. Indicate which process wastewaters are commingled with the FGD scrubber purge (or slurry discharboxes that apply.]If the FGD scrubber purge (or slurry discharge) is commingled with bottom ash or fly ash sluice wate

below that best describes the configuration of the pond(s). If neither option applies, provide an explan

Yes

YesNo

Fly ash sluiceMetal cleaning wasteMill reject sluice None

Bottom ash sluiceBoiler blowdownOther, explain: Other, explain: 

“True” commingling: FGD scrubber purge (or slurry discharge) and bottom ash and/or fly ash sluice water are combined in one pond dedicated to FGD scrubber purge (or slurry discharge) is treated in a FGD pond and subsequently commingled with ash water in a dedicated ash pondFGD scrubber purge (or slurry discharge) is not commingled with other wastewatersOther, explain: FGD scrubber purge (or slurry discharge) wastewater is treated using a wastewater treatment system other than a settling pond and subsequently 

YesYes

B-21 
Steam Electric Questionnaire Part B. 

CBI? B7-4.CBI? B7-5.CBI? B7-6.

(Continue)

(Skip to Section 8)gpd dpy

What is the destination(s) of the treated FGD scrubber purge (or slurry discharge)? If the plant recyc

slurry discharge), indicate the plant process to which this water is recycled. [Check all that apply.]Plants that produce gypsum from wet FGD systems may generate water from the storage and handligypsum-related waters are gypsum wash water and gypsum pile runoff . Are gypsum-related waters gypsum-related water does not include FGD slurry blowdown or FGD scrubber purge (or slurry dischIf yes, provide the typical volume of gypsum-related waters generated per day (gpd) and the frequenccalendar year 2009.Indicate wastewater treatment technologies used to treat the FGD scrubber purge (or slurry discharg

Settling pondBiological reactor – aerobicMechanical vapor compression (brine concentrator)Mechanical vapor compression (brine concentrator) with spray dryer

Chemical precipitationBiological reactor – anoxic/anaerobic

Mechanical vapor compression (brine concentrator) with crystallizerOther, explain: 

Constructed wetlands

YesNo

YesYesYes

Indirect discharge to a publicly or privately owned treatment worksOther, explain:Immediately recycled back to plant process. Please describe how the treated FGD scrubber purge (or slurry discharge) is reused:Discharged to surface water. Provide NPDES permitted outfall number (from Part A Section 2.2):Deep well injection

B-22 
Steam Electric Questionnaire Part B. 

CBI? B7-7. Indicate how the gypsum-related waters are handled. [Check all boxes that apply.]

Reused in FGD processReused in other process operations. Please describe how the gypsum-related waters are reused:Transferred to treatment system reported in Tables D-1 or D-2. Identify the type of treatment system below. [Check all that apply.]Discharged to surface water. Provide NPDES permitted outfall number (from Part A Section 2.2):Indirect discharge to a publicly or privately owned treatment worksOther, explain: 

Yes

Settling pondBiological reactor – aerobicMechanical vapor compression (brine concentrator)Mechanical vapor compression (brine concentrator) with spray dryer

ChemicaBiologica

Mechanical vapor compression (brine concentrator) with crystallizerOther, explain: 

Construc

B-23 
Steam Electric Questionnaire Part B. Flu

Pla

FGD S

Part: B

Section Title: 8. Dry FGD System Information

 Instructions:

CBI? B8-1.

(Continue)(Skip to next Questionnaire Part)

CBI? B8-2.

Throughout this section, you will be required to provide information for each dry FGD system that Table B-1. This section does not need to be completed for planned systems. Please provide all fre

highlighted yellow areas. Make copies of Section 8 and Section 8 tables for each dry FGD system previously defined Section 8 and Section 8 Tables button below. Please note that you will create two new tabs delete unneeded tabs, if accidently created. Enter the FGD system ID in the space provided assigned in Table B-1).Did you report use of a dry FGD system in Table B-1?

Indicate how the FGD solid is removed from the flue gas. 

Yes

Fabric filterOther, specifyESP

Yes

YesNo

Copy Section 8 and Section 8 Tables

B-24 
Steam Electric Questionnaire Part B. Flu

CBI? B8-3.CBI? B8-4.

ppm%

CBI? B8-5.

gpmhpddpy

CBI? B8-6.CBI? B8-7.

(Continue)

Provide the flow rate, duration, and frequency of the FGD reagent preparation water for the FGD s

Provide the source of the FGD reagent preparation water used. [Check all boxes that apply.] Is any FGD wastewater generated from the operation of the dry FGD scrubber? 

For water sources that may be used as a source of FGD reagent preparation water (e.g., fresh inta

indicate the maximum chlorides concentration and maximum solids percentage that is acceptable those purposes. Identify any other criteria that the source water must meet.Is the FGD system located upstream or downstream of the fly ash collection system?

(Skip to Question B8-9)

Chlorides concentration:Solids percentage:Other, explain: Raw intake waterIntake water that has been treated on site prior to useProcess wastewater, specifyOther, explain: 

YesNo

Upstream of fly ash collectionDownstream of fly ash collection

YesYesYesYesYes

Process Wastewater

B-25 
Steam Electric Questionnaire Part B. Flu

CBI? B8-8.CBI? B8-9.

(Continue)

Indicate the destination(s) of the FGD wastewater. If the plant recycles the FGD wastewater, indica

this water is recycled. [Check all that apply.]

(Skip to Question B8-11)

Is any FGD wastewater generated from cleaning the dry FGD scrubber (e.g., power washing during 

outages )?

YesNo

Yes

Indirect discharge to a publicly or privately owned treatment worksImmediately recycled back to plant process. Please describe how the FGD wastewater is reused:Discharged to surface water. Provide NPDES permitted outfall number (from Part A Section 2.2):Deep well injectionOther, explain:Transferred to treatment system reported in Tables D-1 or D-2. Identify the type of treatment system below. [Check all boxes that apply.]

Settling pondBiological reactor – aerobicMechanical vapor compression (brine concentrator)Mechanical vapor compression (brine concentrator) with spray dryer

Chemical precipitationBiological reactor – anoxic/anaero

Mechanical vapor compression (brine concentrator) with crystallizerOther, explain: 

Constructed wetlands

Yes

B-26 
Steam Electric Questionnaire Part B. Flu

CBI? B8-10.CBI? B8-11.

ppmppmppm

What parameters affect the ability of the FGD solids to be marketed, sold and/or given away? [CheIndicate the destination(s) of the FGD wastewater from cleaning. If the plant recycles the FGD wasprocess to which this water is recycled. [Check all that apply.]

Yes

Chlorides content: Moisture content: Other, specify: None – Industry(ies) to which the FGD solids are marketed has not specified standards for the solids. N/A – FGD solids are not marketed, sold, or given away. 

Indirect discharge to a publicly or privately owned treatment worksImmediately recycled back to plant process. Please describe how the FGD wastewater is reused:Discharged to surface water. Provide NPDES permitted outfall number (from Part A Section 2.2):Deep well injectionOther, explain:Transferred to treatment system reported in Tables D-1 or D-2. Identify the type of treatment system below. [Check all boxes that apply.]

Settling pondBiological reactor – aerobicMechanical vapor compression (brine concentrator)Mechanical vapor compression (brine concentrator) with spray dryer

Chemical precipitationBiological reactor – anoxic/anaero

Mechanical vapor compression (brine concentrator) with crystallizerOther, explain: 

Constructed wetlands

Yes

B-27 
Steam Electric Questionnaire Part B. Flue Gas Desulfuri

Plant ID: I

Plant Name: I

FGD System ID: I

Part: B

Section Title: 8. FGD Solids Disposition and Marketing for Dry FGD Systems

 Instructions:

CBI? B8-12.

Stored permanentlyStored temporarily (later hauled offsite/marketed)Stored permanentlyStored temporarily (later hauled offsite/marketed)

Other, explain: Other, explain: 

Ultimate Destination of FGD Solids

Sent to Landfills reported in Table A-6

Amount D

Marketed and sold

Sent to Pond/Impoundment reported in Table A-4Sent to Pond/Impoundment not reported in Table 

A-4Sent to Landfills not reported in Table A-6

Amount Disposed in 2005 

(tons)

Amount Disposed in 2007 

(tons)

In Table B-10, indicate the ultimate destination of FGD solids from the FGD system and provide the tonnage for each type of 

technique for calendar years 2005, 2007, and 2009. If the FGD solids are stored in a landfill or pond/impoundment , provide FGD solids stored permanently and/or temporarily. For example, a plant may operate a gypsum landfill, and some amount of FGD solids that are transferred to the landfill may lafrom the landfill and sold for use in wallboard manufacturing. In this case, the amount of FGD solids sold for wallboard manube identified in BOTH the "Landfills reported in Table A-6: Stored temporarily" category AND the "Marketed and Sold" catego

example, all the FGD solids that are transferred to the landfill and left in the landfill should be identified as "Landfills reported Stored permanently." Given awayThroughout this section, you will be required to provide information on FGD solids disposition for all dry FGD systems that treported in Table B-1. This section does not need to be completed for planned systems. Please provide all free response anshighlighted yellow areas. 

Table B-10. FGD Solids Disposition for 2005, 2007, and 2009

Yes

B-28 
Steam Electric Questionnaire Part B. Flue Gas Desulfuri

CBI? B8-13.

Tons Gross Revenue Generated ($) Tons Gross Revenue Generated ($) Tons 

CBI? B8-14.

$ $ $

Solids dewatering $ $ $

$ $ $$ $ $$ $ $

Other: $ $ $Other: $ $ $Other: $ $ $

$ $ $

Complete Table B-11 if the plant markets, sells, and/or gives away the FGD solids from this FGD system. For each destinatiotons of FGD solids for which the FGD solids are marketed, sold, and/or given away. Also provide the gross revenue generatemarketing/selling the FGD solids for each destination.

Table B-11. FGD Solids Marketed/Sold in 2005, 2007, and 2009

Destination

2005 2007 

In Table B-12, provide the total cost incurred to remove or dispose of FGD solids from 2005 to 2009 including the cost for lab

transportation, and energy. Also provide the cost by component. Include other components not provided in the list of process

box provided.

Table B-12. Cost Incurred to Remove or Dispose of FGD Solids

2007 

Total Costs Incurred Total Costs Incurred Total C

TotalSolids separation Hauling FGD solidsCost of on site disposal Cost of off site disposal 

Process

2005

YesYes

FGD Solids MarketingFGD Solids MarketingFGD Solids MarketingFGD Solids MarketingFGD Solids MarketingFGD Solids Marketing

B-29 
Steam Electric Questionnaire Part B. Flue 

Plant N

Pla

Part: B

Section Title: Part B Comments

Instructions:

Question 

Number

CBI?CBI?CBI?CBI?CBI?CBI?CBI?CBI?CBI?

Cross reference your comments by question number and indicate the confidential status of your co

next to “Yes” under "CBI?" (Confidential Business Information). 

Comment

YesYesYesYesYesYesYesYesYes

B-30 
Steam Electric Questionnaire Part B. Flue 

CBI?CBI?CBI?CBI?CBI?CBI?CBI?CBI?CBI?CBI?CBI?CBI?CBI?CBI?

YesYesYesYesYesYesYesYesYesYesYesYesYesYes

B-31 
Steam Electric Questionnaire Part B. Flue Gas 

Air heater cleaning water AHCWAsh pile runoff APR Effluent - 1 Boiler blowdown BB Effluent - 2 Boiler fireside cleaning water BFCW Effluent - 3 Boiler tube cleaning water BTCW Effluent - 4 Bottom ash sluice BAS Effluent - 5 Carbon capture wastewater CCAPW Effluent - 6 Coal pile runoff CPR Filter backwash Combined ash sluice CAS Sludge 

Combustion turbine cleaning (combustion gas portion of turbine) water

COMBCW

Combustion turbine cleaning (compressor portion of the turbine) water

COMPRCW POND-1 Effluent 

Combustion turbine evaporative coolers blowdown TECB POND-2 Effluent Cooling tower blowdown CTB POND-3 Effluent FGD scrubber purge SCRBP POND-4 Effluent FGD slurry blowdown FGDB POND-5 Effluent Filter Backwash FLTBW POND-6 Effluent Floor drain wastewater FDW POND-7 Effluent Flue gas mercury control system wastewater FGMCW POND-8 Effluent Fly ash sluice FAS POND-9 Effluent General runoff GR POND-10 Effluent Gypsum pile runoff GPR POND-A Effluent Gypsum wash water GYPWW POND-B Effluent Ion exchange wastewater IXW POND-C Effluent Landfill runoff - capped landfill LRC WWT-1 Effluent Landfill runoff - uncapped landfill LRUC WWT-2 Effluent Leachate LEACH WWT-3 Effluent Limestone pile runoff LPR WWT-4 Effluent Mill reject sluice MRS WWT-5 Effluent 

For Use as Influents to Pond/Im

Wastewater Treatment System

Recycled Waters Throu

Steam Electric Questionnaire Code Tables

For Use as Effluents from Po

and/or Wastewater Treatment 

Process Wastewaters Treated Wa

For Use in Tables and Questions throughout Parts A, B, C, D, and F.
Steam Electric Questionnaire Part B. Flue Gas 

Steam Electric Questionnaire Code Tables

Once -through cooling water CW WWT-6 Effluent Reverse osmosis reject water RORW WWT-A Effluent SCR catalyst regeneration wastewater SCRRW WWT-B Effluent SCR catalyst washing wastewater SCRWW WWT-C Effluent Soot blowing wash water SOOTWSteam turbine cleaning water STCWYard drain wastewater YARDW

For Use in Tables and Questions throughout Parts A, B, C, D, and F.

For Use as Influents to Pond/Im

Wastewater Treatment System

Recycled Waters Throu

Process Wastewaters Treated Wa
Steam Electric Questionnaire Part B. Flue Gas 

Steam Electric Questionnaire Code Tables

Adsorptive media ADSORB Burned on site Aerobic Biological Reactor AERBIO Deep-well injection Anaerobic Biological Reactor ANBIO Discharge to POTW Aerobic/Anaerobic Biological Reactor AER/ANBIO Discharge to PrOTW Chemical Precipitation Reaction Tank 1 - 1 CP-1-1 Discharge to surface water Chemical Precipitation Reaction Tank 1 - 2 CP-1-2 Evaporation Chemical Precipitation Reaction Tank 2 - 1 CP-2-1 Hauled off site for reuse 

(removal fee)

Chemical Precipitation Reaction Tank 2 - 2 CP-2-2 Hauled off site for reuse (gi

away)

Chemical Precipitation Reaction Tank 3 - 1 CP-3-1 Hauled off site for reuse 

(marketed and sold)

Chemical Precipitation Reaction Tank 3 - 2 CP-3-2 Hauled off site for disposal Clarification, Primary - 1 CL-P-1 Mixed with fly ash for dispoClarification, Primary - 2 CL-P-2 On-site landfill (as reported 

Table A-6)

Clarification, Secondary - 1 CL-S-1 POND-1 Clarification, Secondary - 2 CL-S-2 POND-2 Clarification, Tertiary - 1 CL-T-1 POND-3 Clarification, Tertiary - 2 CL-T-2 POND-4 Constructed wetland - Cell 1 CWL -1 POND-5 Constructed wetland - Cell 2 CWL -2 POND-6 Constructed wetland - Cell 3 CWL -3 POND-7 Constructed wetland - Cell 4 CWL -4 POND-8 Constructed wetland - Cell 5 CWL -5 POND-9 Constructed wetland - Cell 6 CWL -6 POND-10 Constructed wetland system CWTS POND-A Equalization, Primary EQ-P POND-B Equalization, Secondary EQ-S POND-C Filter, Microfiltration - 1 FLT-M-1 WWT-1 Filter, Microfiltration - 2 FLT-M-2 WWT-2 

For Use in Tables and Questions Throughout Parts D and F.

Wastewater Treatment Units Destina

For Use in Tables and Questio

and 
Steam Electric Questionnaire Part B. Flue Gas 

Steam Electric Questionnaire Code Tables

Filter, Microfiltration - 3 FLT-M-3 WWT-3 Filter, Microfiltration - 4 FLT-M-4 WWT-4 Filter, Sand/Gravity - 1 FLT-S-1 WWT-5 Filter, Sand/Gravity - 2 FLT-S-2 WWT-6 Filter, Sand/Gravity - 3 FLT-S-3 WWT-A Filter, Sand/Gravity - 4 FLT-S-4 WWT-B Filter, Ultrafiltration - 1 FLT-U-1 WWT-C Filter, Ultrafiltration - 2 FLT-U-2 Reuse as boiler water Filter, Ultrafiltration - 3 FLT-U-3 Reuse as bottom ash sluice Filter, Ultrafiltration - 4 FLT-U-4 Reuse as combined ash sluFilter press - 1 FP-1 Reuse as FGD slurry 

preparation water

Filter press - 2 FP-2 Reuse as FGD absorber 

makeup

Holding tank HT Reuse as fly ash sluice Ion exchange IX Reuse as mill reject sluice Natural wetlands NW Reuse in cooling towers pH adjustment - 1 PH-1pH adjustment - 2 PH-2pH adjustment - 3 PH-3Reverse osmosis ROSPond Unit - 1 SPD-1Pond Unit - 2 SPD-2Pond Unit - 3 SPD-3Pond Unit - 4 SPD-4Pond Unit - 5 SPD-5Pond Unit - 6 SPD-6Pond Unit - 7 SPD-7Pond Unit - 8 SPD-8Pond Unit - 9 SPD-9

For Use in Tables and Questions Throughout Parts D and F. For Use in Tables and Questio

and 

Wastewater Treatment Units Destina
Steam Electric Questionnaire Part B. Flue Gas 

Steam Electric Questionnaire Code Tables

Pond Unit - 10 SPD-10

Centrifuge - 1 

Pond Unit - 11 SPD-11 Centrifuge - 2 Pond Unit - 12 SPD-12 Centrifuge - 3 Pond Unit - 13 SPD-13 Centrifuge - 4 Pond Unit - 14 SPD-14 Hydrocyclones - 1 Settling tank - 1 ST-1 Hydrocyclones - 2 Settling tank - 2 ST-2 Hydrocyclones - 3 Settling tank - 3 ST-3 Hydrocyclones - 4 Settling tank - 4 ST-4 Filter press - 1 Settling tank - 5 ST-5 Filter press - 2 Thickener - 1 TH-1 Thickener - 1 Thickener - 2 TH-2 Thickener - 2 Vacuum drum filter - 1 VF-1 Vacuum drum filter - 1 Vacuum drum filter - 2 VF-2 Vacuum drum filter - 2 Vacuum filter belt - 1 VFB-1 Vacuum filter belt - 1 Vacuum filter belt - 2 VFB-2 Vacuum filter belt - 2 

Wastewater Treatment Units Solids H

For Use in Tables and Questions Throughout Parts D and F. For Use as Planned Solids H

Blowdown in Pa
Steam Electric Questionnaire Pa

Yes/No Recirculation/Single Pass FGD System ID FGD System Water Source Process Wastewater Yes/No Recirculation/Single Pass FGD System ID FGD System Water Source Process Wastewater Select Select Select Select Select 

No Recirculation FGD-1 Air heater cleaning water Air heater cleaning water 

Yes Single Pass FGD-2 Ash pile runoff Ash pile runoff 

FGD-3 Boiler blowdown Boiler blowdown 

Steam Electric Generating Units FGD-4 Boiler fireside cleaning water Boiler fireside cleaning water 

Materials of Construction Steam Electric Generating Units FGD-5 Boiler tube cleaning water Boiler tube cleaning water 

Materials of Construction Select FGD-6 Bottom ash sluice Bottom ash sluice Select SEUnit-1 FGD-A Carbon capture wastewater Carbon capture wastewater 2205 stainless steel SEUnit-2 FGD-B Coal pile runoff Coal pile runoff 255 stainless steel SEUnit-3 FGD-C Combined ash sluice Combined ash sluice 316L stainless steel

SEUnit-4

Combustion turbine cleaning (combustion gas portion of turbine) water

Combustion turbine cleaning (combustion gas portion of turbine) water 

317LM stainless steel

SEUnit-5 FGD System ID (no planned)

Combustion turbine cleaning (compressor portion of the turbine) water

Combustion turbine cleaning (compressor portion of the turbine) water 

317LMN stainless steel

SEUnit-6 FGD System ID (no planned)

Combustion turbine evaporative coolers blowdown

Combustion turbine evaporative coolers blowdown

625 stainless steel SEUnit-7 Select Cooling tower blowdown Cooling tower blowdown 

Carbon Steel SEUnit-8 FGD-1

FGD scrubber purge (or slurry discharge)

FGD scrubber purge (or slurry discharge) 

Ceramic SEUnit-9 FGD-2 FGD slurry blowdown FGD slurry blowdown Duplex Stainless Steel SEUnit-10 FGD-3 Filter Backwash Filter Backwash Fiberglass FGD-4 Floor drain wastewater Floor drain wastewater Masonry Tile Lined Carbon Steel Type of FGD System FGD-5

Flue gas mercury control system wastewater

Flue gas mercury control system wastewater 

Masonry Tile Lined Concrete Type of FGD System FGD-6 Fly ash sluice Fly ash sluice Mild Stainless Steel Select General runoff General runoff 

Nickel Alloy Steel Circulating dry scrubber Gypsum pile runoff Gypsum pile runoff Nickel Alloy Steel Lined Carbon Steel Jet bubbling reactor Type of Sorbent Gypsum wash water Gypsum wash water 

Plastic Mechanically aided Type of Sorbent Ion exchange wastewater Ion exchange wastewater 

Plastic Lined Carbon Steel Packed Select Landfill runoff - capped landfill Landfill runoff - capped landfill Rubber Lined Carbon Steel Spray Lime

Landfill runoff - uncapped landfill Landfill runoff - uncapped landfi

Rubber Lined Concrete Spray/Tray Limestone Leachate LeachateSuper Austenitic Stainless Steel Spray Dryer Magnesium Lime Limestone pile runoff Limestone pile runoffOther (specify to the right) Tray Magnesium Oxide Mill reject sluice Mill reject sluice

Venturi Soda Ash Once -through cooling water Once -through cooling water

Grab/Composite Other (specify below) Sodium Hydroxide Raw intake water Reverse osmosis reject water

Grab/Composite

Other (specify)

Raw intake water as makeup

SCR catalyst regeneration wastewater

Select New/Existing Not Applicable

Reverse osmosis reject water SCR catalyst washing 

wastewater

Composite New/Existing

SCR catalyst regeneration wastewater

Soot blowing wash water

Grab Select FGD System ID (Planned)

SCR catalyst washing wastewater

Steam turbine cleaning water

Existing FGD System ID (Planned) Soot blowing wash water Yard drain wastewaterNew Select Steam turbine cleaning water Other (specify to the right)

FGD-A Treated intake waterFGD-B Treated intake water as makeupFGD-C Yard drain wastewater