## OMB Control Number: 2040-0281 Plant ID: Insert Plant ID

Approval Expires: 05/31/2013 Plant Name: Insert Plant Name

**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 We t FGD System Information Part B Section 4 FGD Solids Disposition and Marketing for W et FGD Systems Part B Section 4 Tables FGD W astewater Generation Part B Section 5 FGD Monitoring Data Instructions Part B Section 6 FGD Monitoring Data Part B Section 6 Table FGD W astewater 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 Code Tables Steam Electric Questionnaire Code Tables **Steam Electric Questionnaire PA** **RT B - FLUE GA S DESULFURIZA**  **TION (FGD) SYSTEMS Table of Contents** 

Approved: May 20, 2010

### Steam Electric Questionnaire Part B. Instructions 

## Plant ID: Insert Plant ID Plant Name: Insert Plant Name **PA RT B. FLUE GA** **S DESULFURIZA TION (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: W hen 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.

Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems 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-fueled electric 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 planning to construct/install one or more FGD systems by December 31, 2020, to service fossil-fueled electric generating units.

**Figure B-1. Example Recirculation Wet FGD Scrubber System Diagram** Insert Plant ID Insert Plant Name

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/installing or planning 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 systemthat the plant operates that services fossil-fueled electric generating units, or is currently constructing/installing or planning to construct/install to 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 systems 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) for the 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 planned uni ts) 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 system for all wet FGD systems (Note: mark "Not Applicable" for dry FGD systems). Also provide the design or actual sulfur dioxide removal efficiency for each FGD system. We t 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 blowdown in Figure B-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 discharge) is generated. Use 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, identify "other" and provide the type(s) of sorbent in the yellow highlighted box to the right. Yes Yes No

Yes

B-1 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems

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

B-2 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems
**Date System Initially Brought**  **On Line, or Planned to be**  **Brought On Line (month/year)**  **Steam Electric Units from Table A**

**8 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 Sulfur**  **Dioxide Removal**  **Efficiency (%)**  Primary: **01/1995** Secondary: **97.5** 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** 

**Type of Sorbent FGD System**  **ID** Forced Inhibited Natural Not Applicable Yes No SE Unit 1 SE Unit 2 SE Unit 3 SE Unit 4 SE Unit 5 SE Unit 8

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

SE Unit B SE Unit C SE Unit D Forced Inhibited Natural Not Applicable Yes No
Forced Inhibited Natural Not Applicable Yes No
Forced Inhibited Natural Not Applicable Yes No
Forced Inhibited Natural Not Applicable Yes No
Forced Inhibited Natural Not Applicable Yes No
Forced Inhibited Natural Not Applicable Yes No
Forced Inhibited Natural Not Applicable Yes No
Forced Inhibited Natural Not Applicable Yes No SE Unit 10 SE Unit 1 SE Unit 2 SE Unit 3 SE Unit 4 SE Unit 5 SE Unit 8

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

SE Unit B SE Unit C SE Unit D SE Unit 10 SE Unit 1 SE Unit 2 SE Unit 3 SE Unit 4 SE Unit 5 SE Unit 8

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

SE Unit B SE Unit C SE Unit D SE Unit 10 SE Unit 1 SE Unit 2 SE Unit 3 SE Unit 4 SE Unit 5 SE Unit 8

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

SE Unit B SE Unit C SE Unit D SE Unit 10 SE Unit 1 SE Unit 2 SE Unit 3 SE Unit 4 SE Unit 5 SE Unit 8

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

SE Unit B SE Unit C SE Unit D SE Unit 10 SE Unit 1 SE Unit 2 SE Unit 3 SE Unit 4 SE Unit 5 SE Unit 8

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

SE Unit B SE Unit C SE Unit D SE Unit 10 SE Unit 1 SE Unit 2 SE Unit 3 SE Unit 4 SE Unit 5 SE Unit 8

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

SE Unit B SE Unit C SE Unit D SE Unit 10 SE Unit 1 SE Unit 2 SE Unit 3 SE Unit 4 SE Unit 5 SE Unit 8

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

SE Unit B SE Unit C SE Unit D SE Unit 10 SE Unit 1 SE Unit 2 SE Unit 3 SE Unit 4 SE Unit 5 SE Unit 8

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

SE Unit B SE Unit C SE Unit D SE Unit 10

B-3 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems Plant ID: Insert Plant ID Plant Name: Insert Plant Name **Part:** B **Section Title: Instructions:** 

**CBI? B2-1.** 

**Maximum (gpm)**  **24-Hour**

**Daily Average**  **(gpm) Example**  **HYC-1, VFB-1 EQ-P, CP-1-1, CL-P-1, PH**  **1, FLT-S-1 1,200**  **1,000 06/2012** 

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, 2020 that is reported in Table B-1 and is expected to generate FGD slurry blowdown. Enter the planned method for handling solids generated, whether FGD scrubber purge (or slurry discharge ) will be generated, the type of wastewater treatment system , the design maximum and 24-hour daily average flow rate for the treatment system, and the date the treatment system will be brought on line. Use codes from the Code Tables tab, as appropriate, and separate multiple entries with commas. If you do not know the type of wastewater treatment 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/installed by December 31, 2020 that are reported in Table B-1 and are expected to generate FGD slurry blowdown . Please provide all free response answers in the highlighted yellow areas. 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 Rate for** 

**FGD Treatment System Estimated Date the New**  **FGD Treatment System Will be Brought On Line (or**  **Date FGD Scrubber Purge (or Slurry Discharge) Will**  **be Transferred to Existing**

**System) (month/year)**  **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

B-4 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems 

### Plant ID: Insert Plant ID Plant Name: Insert Plant Name **Part:** B **Section Title:** 3. FGD Additive Information **Instructions:**

**CBI? B3-1.** 

**Ad ditive**  **FGD System(s) in w hich A** **dditive is Used or is Planned to be Used**  Throughout this section, provide information for all FGD Systems listed in Table B-1. Please provide all free response answers in the highlighted yellow 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 provide a description of its purpose. [Check all boxes that apply.] **Table B-3. FGD A dditive Information**  **Purpose of A dditive** 

Sodium thiosulfate Adipic acid

Elemental sulfur Dibasic acid (DBA)

Formic acid Organosulfide Yes

FGD 1 FGD 2 FGD 3 FGD 4

FGD 5 FGD 6 FGD A FGD B FGD C Increase sulfur dioxide removal Increase mercury removal Inhibit oxidation of FGD solids Scale inhibitor Defoaming agent Other (specify below):
FGD 1 FGD 2 FGD 3 FGD 4

FGD 5 FGD 6 FGD A FGD B FGD C FGD 1 FGD 2 FGD 3 FGD 4

FGD 5 FGD 6 FGD A FGD B FGD C FGD 1 FGD 2 FGD 3 FGD 4

FGD 5 FGD 6 FGD A FGD B FGD C FGD 1 FGD 2 FGD 3 FGD 4

FGD 5 FGD 6 FGD A FGD B FGD C Increase sulfur dioxide removal Increase mercury removal Inhibit oxidation of FGD solids Scale inhibitor Defoaming agent Other (specify below):
Increase sulfur dioxide removal Increase mercury removal Inhibit oxidation of FGD solids Scale inhibitor Defoaming agent Other (specify below):
Increase sulfur dioxide removal Increase mercury removal Inhibit oxidation of FGD solids Scale inhibitor Defoaming agent Other (specify below):
Increase sulfur dioxide removal Increase mercury removal Inhibit oxidation of FGD solids Scale inhibitor Defoaming agent Other (specify below):
FGD 1 FGD 2 FGD 3 FGD 4

FGD 5 FGD 6 FGD A FGD B FGD C Increase sulfur dioxide removal Increase mercury removal Inhibit oxidation of FGD solids Scale inhibitor Defoaming agent Other (specify below):

B-5 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems 

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

None FGD 1 FGD 2 FGD 3 FGD 4

FGD 5 FGD 6 FGD A FGD B FGD C FGD 1 FGD 2 FGD 3 FGD 4

FGD 5 FGD 6 FGD A FGD B FGD C FGD 1 FGD 2 FGD 3 FGD 4

FGD 5 FGD 6 FGD A FGD B FGD C Increase sulfur dioxide removal Increase mercury removal Inhibit oxidation of FGD solids Scale inhibitor Defoaming agent Other (specify below):
Increase sulfur dioxide removal Increase mercury removal Inhibit oxidation of FGD solids Scale inhibitor Defoaming agent Other (specify below):

B-6 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfuriz ation (FGD) Systems 

### Plant ID: Insert Plant ID Plant Name: Insert Plant Name FGD System ID: Insert System ID **Part:** B **Section Title:** 4. W et FGD System Information **Instructions:**

**CBI? B4-1.**  (Continue) (Skip to Section 8)

**CBI? B4-2.**  Minimum operating concentration: ppm Maximum operating concentration: ppm Throughout this section, you will be required to provide information for each wet FGD system that the plant operates, reported in Table B-1. This section does not need to be completed for planned systems. Please provide all free response answers in the highlighted yellow areas. **Make copies of Section 4 and the Section 4 tables for each w et FGD system prev**  **iously defined in Table B-1 using the "Copy Section 4 and Section 4 Tables" button below**  **. Please note that you w ill create tw**  **o new tabs for these sections. You may delete unneeded tabs,**  **if accidently created. Enter the FGD system ID in the space prov ided abov** **e (use FGD system IDs assigned in Table B-1).**
Did 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 **S ection 4 and Section 4 Tables** 

Yes Yes Yes No

B-7 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfuriz ation (FGD) Systems 

### CBI? **B4-3.**

FGD system maximum design chlorides concentration: ppm FGD 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.**  gpm hpd dpy Provide the maximum design chlorides concentration for the FGD system and indicate which specific equipment unit(s) of the FGD system determine this concentration (e.g., FGD scrubber absorber, piping). Also provide the materials of construction for the specific FGD equipment that determine the maximum design chlorides concentration. If multiple materials are used in the construction of the FGD equipment that determines the maximum design chlorides concentration, identify the component that is the most vulnerable to corrosion due to chlorides concentrations. If the material of construction is not provided in the drop down menu, select "other" and provide the name in the yellow box provided.

Provide the typical flow rate, duration, and frequency of the mist eliminator wash water for the FGD system for calendar year 2009. Provide 2010 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 FGD system. [Check all boxes that apply.]

For water sources that maybe used as a source of FGD reagent preparation water or absorber make-up water (e.g., fresh intake, recy cled process water), indicate the maximum chlorides concentration and maximum solids percentage that is acceptable for the water to be used for those purposes. Identify any other criteria that the source water must meet. Chlorides concentration, maintained less than Solids percentage, maintained between Other, explain:

Chlorides concentration: Solids percentage: Other, explain: Yes Yes

Yes

Yes

B-8 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfuriz ation (FGD) Systems 

### CBI? **B4-7.** gpm hpd dpy **CBI? B4-8.**  gpm hpd dpy **CBI? B4-9.**  gpm hpd dpy **CBI? B4-10.**  Provide the source of the mist eliminator wash water used. [Check all boxes that apply.] If the source is a process wastewater not provided in the dropdown box, select other and provide in the yellow box the name of the process wastewater and a short description. Provide the typical flow rate, duration, and frequency of the absorber make-up water for the FGD system for calendar year 2009. Provide 2010 data for systems that were not operating in 2009. Provide the typical flow rate, duration, and frequency of the FGD reagent preparation water for the FGD system for calendar year 2009. Provide 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 year 2009. Provide 2010 data for systems that were not operating in 2009.

Raw intake water Intake water that has been treated on site prior to use Process wastewater Other, explain: Yes

Yes

Yes Yes

B-9 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfuriz ation (FGD) Systems 

### 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 absorber make-up water used. [Check all boxes that apply.] If the source is a process wastewater not provided in the dropdown box, select other and provide in the yellow box the name of the process wastewater and a short description. Provide the source of the FGD reagent preparation water used. [Check all boxes that apply.] If the source is a process wastewater not provided in the dropdown box, select other and provide in the yellow box the name of the process wastewater and a short description.

Indicate the type of solids that are generated within the FGD scrubber system. Also provide the approximate percent of the total FGD solids 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 water Intake water that has been treated on site prior to use Process wastewater Other, explain:

Calcium sulfate (gypsum) Calcium sulfite Other, explain: Other, explain: Yes

Yes

Yes Intake water that has been treated on site prior to use Process wastewater Other, explain: Yes
Raw intake water

Yes No

B-10 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfuriz ation (FGD) Systems 

### CBI? **B4-15.**

**CBI? B4-16.** 

**CBI? B4-17.** 

**CBI? B4-18.** 
Typical concentration: ppm Minimum concentration: ppm Maximum concentration: ppm Provide the typical, maximum, and minimum chlorides concentration of the FGD solids produced by the FGD system in calendar year 2009. The chlorides concentration should be given on a wet basis (i.e., analysis of the FGD with the moisture content included); however, if the chlorides concentration is not known on a wet basis, provide the dry-basis concentration and note that it is a dry-basis concentration in the comments. 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). Refer to Figure B-1 for an example of a FGD solids separation system. Note that FGD solids separation and FGD solids dewatering are separate processes. [Check all boxes that apply.] Hydrocyclones Centrifuge Thickener Other, 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 filter Vacuum belt filter Gypsum stacking Other, explain: Yes

Yes

Yes Yes Yes No

B-11 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfuriz ation (FGD) Systems 

### CBI? **B4-19.** ppm % ppm Wh at parameters affect the ability of the FGD solids to be marketed, sold and/or given away? [Check all boxes that apply.] 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 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfuriz ation (FGD) Systems Plant ID: Insert Plant ID Plant Name: Insert Plant Name FGD System ID: Insert System ID **Part:** B **Section Title:** 4. FGD Solids Disposition and Marketing for W et FGD Systems **Instructions:**

**CBI? B4-20.** 

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

Other, explain: Other, explain: In Table B-4, indicate the ultimate destination of FGD solids from the FGD system and provide the tonnage for each type of storage/handling technique for calendar years 2005, 2007, and 2009. If the FGD solids are stored in an on-site landfill or pond/impoundment , including those located 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 are transferred to the pond/impoundment are dewatered and sold for use in wallboard manufacturing. In this case, the amount of FGD solids sold for w allboard manufacturing should be identified in BOTH the "Sent to Pond/Impoundment reported in Table A-4: Stored temporarily" category AND the "Marketed and Sold" category. In this same example, all the FGD solids that are transferred to the pond/impoundment and either left settling at the bottom of the pond/impoundment or used in increase the banks of the pond/impoundment should be identified as "Sent to Pond/Impoundment reported in Table A-4: Stored permanently."

**Ultimate Destination of FGD Solids Amount Disposed in 2009**  **(tons)** Throughout this section, you w ill be required to provide information on FGD solids disposition for each wet FGD system that the plant operates, reported in Table B-1. This section does not need to be completed for planned systems. Please provide all free response answ ers in the highlighted yellow areas.

**Table B-4. FGD Solids Disposition for 2005, 2007, and 2009 Amount Disposed in 2005** 

**(tons) Amount Disposed in 2007**  **(tons)** Sent to Landfills reported in Table A-6

Marketed and sold Given away Sent to Pond/Impoundment reported in Table A-4
Sent to Pond/Impoundment notreported in Table A-4 Sent to Landfills notreported in Table A-6 Yes

B-13 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfuriz ation (FGD) Systems **CBI? B4-21.** 

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

**CBI? B4-22.** 

$ $ $ Solids dewatering $ $ $ $ $ $ $ $ $ $ $ $ Other: $ $ $ Other: $ $ $ Other: $ $ $ **$ $**  **$** Cost of on site disposal **Process**

**Total** Cost of off site disposal Complete Table B-5 if the plant markets, sells, and/or gives aw ay the FGD solids from this FGD system. For each destination, provide the tons of FGD solids for w hich the FGD solids are marketed, sold, and/or given aw ay. Also provide the gross revenue generated from marketing/selling the FGD solids for each destination. **Table B-5. FGD Solids Marketed/Sold in 2005, 2007, and 2009**

**Destination 2005** 

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, materials, transportation, and energy. Also provide the cost by component. Include other components not provided in the list of processes in the yellow box provided. **Table B-6. Cost Incurred to Remove or Dispose of FGD Solids in 2005, 2007, and 2009** Solids separation Hauling FGD solids **Total Costs Incurred 2005**  **2007 2009**  **Total Costs Incurred Total Costs Incurred**  **2009 2007**  Yes

Yes

B-14 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems Plant ID: Plant Name: **Part:** B **Section Title:** 5. FGD W astewater Generation **Instructions:**
**CBI? B5-1.** 

**Percent 80%**  **20% Other** 
Other
Other
Other
Other
Other
Other **FGD Reagent Preparation Water, A bsorber Make-Up Water, and Mist Eliminator Wash Water**  **(Sources, Percent Contribution, and Flow Rate) Source(s)**  **FGDB CTB**  **Example: FGD System ID**  Insert Plant ID Insert Plant Name

**Flow Rate (gpd)**  **48,000 12,000**  **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. For 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 source from the dropdown menu. For the percent contribution of the flow rates, provide the percentage based on the total flow rate for all these sources entering the FGD system. 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 does not need to be completed for planned systems. Please provide all free response answers in the highlighted yellow areas.

Yes

B-15 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems

**CBI? B5-2.** 

**200** gpm **10** hpd **240,000 12**  to **16 120,000**  gpd **365** dpy gpm hpd to gpd dpy gpm hpd to gpd dpy gpm hpd to gpd dpy gpm hpd to gpd dpy gpm hpd to gpd dpy gpm hpd to gpd dpy **CBI? B5-3.**  ppm ppm **Typical Range of Percent Solids of FGD Slurry**  **Blowdown (or Slurry Discharge) Exiting the**  **Ab sorber**  **(% )**  **Typical Duration AN**  **D Frequency of FGD Scrubber**  **Purge (or Slurry Discharge)**  **Generation (hpd A** **ND dpy) Typical A** **mount of FGD Scrubber Purge (or**  **Slurry Discharge) Sent**  **to Wastewater Treatment or Discharge**  **(gpm A ND gpd)**  **Typical A mount**  **of Solids Separation**  **Recycle Returned to**  **Ab sorber**  **(gpd) 180,000**  **Typical FGD Slurry Blowdown (or Slurry**  **Discharge) Flow Rate Exiting the A** **bsorber (gpd)**  **FGD System ID Example:**  **Ab sorber Type**  In Table B-8, provide information for each wetFGD system that the plant operates reported in Table B-1. **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 treatment system (after the FGD solids separation process, but prior to commingling with other process wastewater). Yes

Yes Chlorides content: Total suspended solids (TSS):

B-16 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems 

### 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 discharge ) in the 12 months prior to receiving the ICR for any of the following analytes:

**Note: The untreated FGD scrubber purge (or slurry discharge) stream is the**  **FGD wastewater stream leaving the solids**  **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 plant operates, reported in Table B-1. This section does not need to be completed for planned systems. Please provide all free response answers in the highlighted yellow areas.

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

**Note: You are not required to perform non-routine tests or measurements solely for the purpose of responding to this**  **question.** Provide the monitoring data in Table B-9 in the tab labeled "Part B Section 6 Table" for each different FGD scrubber purge stream for which the plant collected monitoring data. Report all results. Identify results that are less than the method detection limit (MDL), and results that are between the detection and reporting limits. For example, if the MDL is equal to 5 ng/L, the reporting limit is equal to 15 ng/L, and the value reported by the laboratory is 12 ng/L, report 12 ng/L as the measured value and identify and describe any qualifiers on the data in the corresponding column. Copy Table B-9 as many times as needed using the "Copy Table B-9" button below. Yes

Yes No



## Copy **T able B**  **- 9** 
B-17 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems



### The following information should be provided for each data point:

 Name of analyte and CAS Number;

 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);  Wh ether 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 FGD System IDs and associated steam electric generating units from Table B-1); and Note: If you operate multiple FGD solids separation processes (e.g., two sets of hydroclones), only provide monitoring data collected after the last solid separation process. If necessary, you may provide additional information regarding the sample collection techniques or analytical methods in the Comments section (e.g., sample collection followed EPA Method 1669 protocols, dynamic reaction cell was used in conjunction with analytical method).

 Measured value, including those reported below the laboratory reporting limit, including units (if not detected, list the detection limit value and select the less than (<) symbol in the non-detect indicator column);

B-18 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems Plant ID: Insert Plant ID Plant Name: Insert Plant Name **Part:** B **Section Title:** 6. FGD Monitoring Data **Instructions:**

**CBI? B6-2.** 

**Non Detect**  **Indicator Value**  **Units Value**  **Units Value**  **Units Analyzed as**  **Total Recoverable or**  **Dissolved  ** Flow Rate of**

**FGD Scrubber Purge (or Slurry**  **Discharge) at Time of**  **Sampling (gpm) Date**  **Sample Collected**  **Location**

**Collected Collected as** 

**a Grab or Composite**  **Description**

**of Qualifiers Method**  **Detection Limit Reporting Limit**  **Analyte** 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 12 months prior to receiving the ICR for any of the following analytes: metals (including monitoring data for total recoverable or dissolved metals analyses), ammonia, nitrate/nitrite, total Kjeldahl nitrogen (TKN), and total cyanide. Complete a separate table for each different FGD scrubber purge (or slurry discharge) stream for which the plant is providing monitoring data. Report all results. Identify results that are less than the method detection limit (MDL), and results that are between the detection and reporting limits. For Question B6-2, identify the FGD systems and steam electric generating units associated with the FGD scrubber purge data provided in the table. Refer to the instructions in Part B Section 6 if you need assistance completing Table B-9. Throughout this section, you will be required to provide information on monitoring data for untreated FGD scrubber purge (or slurry discharge ) for all wet FGD systems that the plant operates, reported in Table B-1. This section does not need to be completed for planned systems. Please provide all free response answers in the highlighted yellow areas.

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

**CAS Number**  **Analytical method**  **Measured Value Including**

**Units***Identify the FGD systems and steam electric generating units associated with the FGD scrubber purge (or slurry discharge) monitoring data provided in the table below. Use the FGD system IDs identified in Table B1 and the SE unit IDs identified in Table A-8. [Check all that apply.] Yes

FGD - 1 FGD - 2 FGD - 3 FGD - 4

FGD - 5 FGD - 6 SE Unit- 1 SE Unit- 2 SE Unit- 3 SE Unit- 4

SE Unit- 5 SE Unit- 6 SE Unit- 7

SE Unit- 8 SE Unit- 9 SE Unit- 10

B-19 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems

**Only answer for metals *If not detected, list the detection limit value and select the less than (<) symbol in the non-detect indicator column.

B-20 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems 

### Plant ID: Plant Name: **Part:** B **Section Title:** 7. FGD W astewater Treatment **Instructions:**

**CBI? B7-1.**  (Continue) (Skip to Question B7-4) **CBI? B7-2.** 

**CBI? B7-3.**  Insert Plant ID Insert Plant Name

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 plant operates, reported in Table B1. This section does not need to be completed for planned systems. Please provide all free response answers in the highlighted yellow areas.

Indicate which process wastewaters are commingled with the FGD scrubber purge (or slurry discharge) in the settling pond. [Check all boxes that apply.]

If the FGD scrubber purge (or slurry discharge) is commingled with bottom ash or fly ash sluice water in the pond(s), select the option below that best describes the configuration of the pond(s). If neither option applies, provide an explanation in the space provided: Yes Yes No

Fly ash sluice Metal cleaning waste Mill reject sluice None Bottom ash sluice Boiler blowdown Other, explain: Other, explain:

“True” commingling: FGD scrubber purge (or slurry discharge) and bottom ash and/or fly ash sluice water are combined in one p ond dedicated to the treatment of both waters FGD scrubber purge (or slurry discharge) is treated in a FGD pond and subsequently commingled with ash water in a dedicated a sh pond FGD scrubber purge (or slurry discharge) is not commingled with other wastewaters Other, explain: FGD scrubber purge (or slurry discharge) wastewater is treated using a wastewater treatment system other than a settling pond an d subsequently commingled with ash water in a dedicated ash pond Yes

Yes

B-21 Approved: May 20, 2010Part B. Flue Gas Desulfurization (FGD) Systems 

### Insert Plant ID Insert Plant Name
that the plant operates, reported in Table B1. This section does not need to be completed for planned systems. Please provide all free response answers in the highlighted yellow

are commingled with the FGD scrubber purge (or slurry discharge) in the settling pond. [Check all

water in the pond(s), select the option below that best describes the configuration of the pond(s). If neither option applies, provide an explanation in the space provided:

d subsequently commingled with ash water in a dedicated ash pond

B-22 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems



### CBI? **B7-4.**

**CBI? B7-5.** 

**CBI? B7-6.** 
(Continue) (Skip to Section 8)
gpd dpy Indicate all intermediate and final destination(s) of the treated FGD scrubber purge (or slurry discharge). If the plant recycles the treated FGD scrubber purge (or 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 handling of gypsum. Examples of gypsum-related waters are gypsum wash water and gypsum pile runoff . Are gypsum-related waters generated at the plant? Note: gypsum-related water does notinclude FGD slurry blowdown or FGD scrubber purge (or slurry discharge).

If yes, provide the typical volume of gypsum-related waters generated per day (gpd) and the frequency of water generation (dpy) for calendar year 2009. Indicate wastewater treatment technologies used to treat the FGD scrubber purge (or slurry discharge). [Check all boxes that apply.] Settling pond Biological reactor – aerobic Mechanical vapor compression (brine concentrator) Mechanical vapor compression (brine concentrator) with spray dryer Chemical precipitation Biological reactor – anoxic/anaerobic
Mechanical vapor compression (brine concentrator) with crystallizer Other, explain: Constructed wetlands

Yes No Yes

Yes

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

B-23 Approved: May 20, 2010Part B. Flue Gas Desulfurization (FGD) Systems



### FGD scrubber purge (or slurry discharge). If the plant recycles the treated

Plants that produce gypsum from wet FGD systems may generate water from the storage and handling of gypsum. Examples of . Are gypsum-related waters generated at the plant? Note:

If yes, provide the typical volume of gypsum-related waters generated per day (gpd) and the frequency of water generation (dpy) for Indicate wastewater treatment technologies used to treat the FGD scrubber purge (or slurry discharge). [Check all boxes that apply.]

B-24 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems



### CBI? **B7-7.** Indicate how the gypsum-related waters are handled. [Check all boxes that apply.] Reused in FGD process Reused 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 ap ply.]

Discharged to surface water. Provide NPDES permitted outfall number (from Part A Section 2.2): Indirect discharge to a publicly or privately owned treatment works Other, explain: Yes

Settling pond Biological reactor – aerobic Mechanical vapor compression (brine concentrator) Mechanical vapor compression (brine concentrator) with spray dryer Chemical precipitation Biological reactor – anoxic/anaerobic
Mechanical vapor compression (brine concentrator) with crystallizer Other, explain: Constructed wetlands

B-25 Approved: May 20, 2010Part B. Flue Gas Desulfurization (FGD) Systems

B-26 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems 

### Plant ID: Insert Plant ID Plant Nam e: Insert Plant Nam e FGD System ID: Insert System ID **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 inform ation for each dry FGD system that the plant operates, reported in Table B-1. This section does not need to be com pleted for planned system s. Please provide all free response answers in the highlighted yellow areas. **Make copies of Section 8 and Section 8 tables for each dry** **FGD system previously defined in Table B-1 using the Copy Section 8 and Section 8 Tables button below**  **. Please note that you w ill create tw**  **o new tabs for these sections. You**  **may delete unneeded tabs, if accidently created. Enter the FGD system ID in the space provided above (use FGD system IDs assigned in Table B-1).**  Did you report use of a dry FGD system in Table B-1?

Indicate how the FGD solid is rem oved from the flue gas. Yes
Fabric filter Other, specify ESP Yes Yes No 

## Copy **S ection 8 and Section 8 Tables** 

B-24 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems



### CBI? **B8-3.**

**CBI? B8-4.** 
ppm % **CBI? B8-5.**  gpm hpd dpy **CBI? B8-6.** 

**CBI? B8-7.**  (Continue) Provide the flow rate, duration, and frequencyof the FGD reagent preparation water for the FGD sy stem for calendar year 2009.

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

Is any FGD w

astew ater generated from the operation of the dryFGD scrubber? For water sources that m ay be used as a source of FGD reagent preparation water (e.g., fresh intake, recy cled process water), indicate the m axim um chlorides concentration and m axim um solids percentage that is acceptable for the water to be used for those purposes. Identifyany other criteria that the source water m ust m eet. 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 water Intake water that has been treated on site prior to use Process wastewater, specify Other, explain:

Yes No Upstream of fly ash collection Downstream of fly ash collection Yes

Yes

Yes

Yes

Yes

B-25 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems



### CBI? **B8-8.**

**CBI? B8-9.**  (Continue) Provide the volum e and frequency of wastewater generated from the dry FGD scrubber in 2009. gpd over days Indicate all interm ediate and final destination(s) of the FGD wastewater. If the plant recy cles the FGD wastewater, indicate the plant process to which this water is recy cled. [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 scheduled generating unit outages)? Yes No Yes

Indirect discharge to a publicly or privately owned treatment works Immediately 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 injection Other, explain: Transferred to treatment system reported in Tables D - 1 or D - 2. Identify the type of treatment system below. [Check all boxes t hat apply.] Settling pond Biological reactor – aerobic Mechanical vapor compression (brine concentrator) Mechanical vapor compression (brine concentrator) with spray dryer Chemical precipitation Biological reactor – anoxic/anaerobic
Mechanical vapor compression (brine concentrator) with crystallizer Other, explain: Constructed wetlands

Yes

B-26 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems



### CBI? **B8-10.**

**CBI? B8-11.**  ppm ppm ppm Wh at param eters affect the abilityof the FGD solids to be m arketed, sold and/or given away ? [Check all boxes that apply .] Indicate all interm ediate and final destination(s) of the FGD wastewater from cleaning. If the plant recy cles the FGD wastewater from cleaning, indicate the plant process to which this water is recy cled. [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 works Immediately 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 injection Other, explain: Transferred to treatment system reported in Tables D - 1 or D - 2. Identify the type of treatment system below. [Check all boxes t hat apply.] Settling pond Biological reactor – aerobic Mechanical vapor compression (brine concentrator) Mechanical vapor compression (brine concentrator) with spray dryer Chemical precipitation Biological reactor – anoxic/anaerobic
Mechanical vapor compression (brine concentrator) with crystallizer Other, explain: Constructed wetlands Yes

B-27 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems Plant ID: Insert Plant ID Plant Name: Insert Plant Name FGD System ID: Insert System ID **Part:** B **Section Title:** 8. FGD Solids Disposition and Marketing for Dry FGD Systems **Instructions:**

**CBI? B8-12.** 

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

Other, explain: Other, explain: **Ultimate Destination of FGD Solids** Sent to Landfills reported in Table A-6 **Am ount Disposed in 2009**  **(tons)**

Marketed and sold Sent to Pond/Impoundment reported in Table A-4
Sent to Pond/Impoundment notreported in Table A-4 Sent to Landfills notreported in Table A-6 **Am ount Disposed in 2005**  **(tons) Am**  **ount 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 storage/handling technique for calendar years 2005, 2007, and 2009. If the FGD solids are stored in a landfill or pond/impoundment , provide the amount of 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 later be removed from the landfill and sold for use in wallboard manufacturing. In this case, the amount of FGD solids sold for wallboard manufacturing should be identified in BOTH the "Landfills reported in Table A-6: Stored temporarily" category AND the "Marketed and Sold" category. In this same example, all the FGD solids that are transferred to the landfill and left in the landfill should be identified as "Landfills reported in Table A-6: Stored permanently."

Given away Throughout this section, you will be required to provide information on FGD solids disposition for all dry FGD systems that the plant operates reported in Table B-1. This section does not need to be completed for planned systems. Please provide all free response answers in the highlighted yellow areas.

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

B-28 Approved: May 20, 2010Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems

**CBI? B8-13.** 

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

**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 destination, provide the tons of FGD solids for which the FGD solids are marketed, sold, and/or given away. Also provide the gross revenue generated from marketing/selling the FGD solids for each destination. **Table B-11. FGD Solids Marketed/Sold in 2005, 2007, and 2009**

**Destination 2005**  **2007 2009** 

**2007 2009**  **Total Costs Incurred Total Costs Incurred**  **Total Costs Incurred** In Table B-12, provide the total cost incurred to remove or dispose of FGD solids from 2005 to 2009 including the cost for labor, materials, transportation, and energy. Also provide the cost by component. Include other components not provided in the list of processes in the yellow box provided. **Table B-12. Cost Incurred to Remove or Dispose of FGD Solids**

**Total** Solids separation Hauling FGD solids Cost of on site disposal Cost of off site disposal **Process 2005**  Yes

Yes

B-29 Approved: May 20, 2010

### Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems 

### Plant Name: Insert Plant ID Plant ID: Insert Plant Name **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 comment by checking the box next to “Yes” under "CBI?" (Confidential Business Information).

**Comment** Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes 

### B-30 Approved: May 20, 2010

### Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems



### CBI? **CBI? CBI?**  **CBI? CBI?**  **CBI? CBI?**  **CBI? CBI?**  **CBI? CBI?**  **CBI? CBI?**  **CBI?** Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes



### B-31 Approved: May 20, 2010

### Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems



## Air heater cleaning water AHCW Ash pile runoff APR Effluent - 1 EFF-1 Boiler blowdown BB Effluent - 2 EFF-2 Boiler fireside cleaning water BFCW Effluent - 3 EFF-3 Boiler tube cleaning water BTCW Effluent - 4 EFF-4 Bottom ash sluice BAS Effluent - 5 EFF-5 Carbon capture wastewater CCAPW Effluent - 6 EFF-6 Coal pile runoff CPR Filter backwash FltBW Combined ash sluice CAS Sludge SLDG Combustion turbine cleaning (combustion gas portion of turbine) water COMBCW Combustion turbine cleaning (compressor portion of the turbine) water COMPRCW POND-1 Effluent POND-1-EFF Combustion turbine evaporative coolers blowdown TECB POND-2 Effluent POND-2-EFF Cooling tower blowdown CTB POND-3 Effluent POND-3-EFF FGD scrubber purge SCRBP POND-4 Effluent POND-4-EFF FGD slurry blowdown FGDB POND-5 Effluent POND-5-EFF Filter Backwash FLTBW POND-6 Effluent POND-6-EFF Floor drain wastewater FDW POND-7 Effluent POND-7-EFF Flue gas mercury control system wastewater FGMCW POND-8 Effluent POND-8-EFF Fly ash sluice FAS POND-9 Effluent POND-9-EFF General runoff GR POND-10 Effluent POND-10-EFF Gypsum pile runoff GPR POND-A Effluent POND-A-EFF Gypsum wash water GYPW W POND-B Effluent POND-B-EFF Ion exchange wastewater IXW POND-C Effluent POND-C-EFF Landfill runoff - capped landfill LRC WWT -1 Effluent WWT-1-EFF Landfill runoff - uncapped landfill LRUC WWT -2 Effluent WWT-2-EFF Leachate LEACH WWT -3 Effluent WWT-3-EFF Limestone pile runoff LPR WWT -4 Effluent WWT-4-EFF Mill reject sluice MRS WWT -5 Effluent WWT-5-EFF **For Use as Influents to Pond/Impoundment Systems and/or Wastewater Treatment Systems in Part D, Table D-3, AND**  **Recycled Waters Throughout Questionnaire.** 

## Steam Electric Questionnaire Code Tables **For Use as Effluents from Pond/Impoundment Systems and/or Wastewater Treatment Systems in Part D, Table D-4.**  

## Process Wastew **aters Treated Wastew**  **aters For Use in Tables and Questions throughout Parts A, B, C, D, and F.** 

Approved: May 20, 2010

### Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems 

## Steam Electric Questionnaire Code Tables
Once -through cooling water CW WWT -6 Effluent WWT-6-EFF Reverse osmosis reject water RORW WWT -A Effluent WWT-A-EFF SCR catalyst regeneration wastewater SCRRW WWT -B Effluent WWT-B-EFF SCR catalyst washing wastewater SCRW W WWT -C Effluent WWT-C-EFF Soot blowing wash water SOOTW Steam turbine cleaning water STCW Yard drain wastewater YARDW

**For Use in Tables and Questions throughout Parts A, B, C, D, and F. For Use as Influents to Pond/Impoundment Systems and/or**  **Wastewater Treatment Systems in Part D, Table D-3, AND Recycled Waters Throughout Questionnaire.**  

## Treated Wastew **aters Process Wastew**  **aters**

Approved: May 20, 2010

### Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems 

## Steam Electric Questionnaire Code Tables
Adsorptive media ADSORB Burned on site BURN Aerobic Biological Reactor AERBIO Deep-well injection DW ELL Anaerobic Biological Reactor ANBIO Discharge to POTW POTW Aerobic/Anaerobic Biological Reactor AER/ANBIO Discharge to PrOTW PrOTW Chemical Precipitation Reaction Tank 1 - 1 CP-1-1 Discharge to surface water SW Chemical Precipitation Reaction Tank 1 - 2 CP-1-2 Evaporation EVAP Chemical Precipitation Reaction Tank 2 - 1 CP-2-1 Hauled off site for reuse (removal fee) HAULR - RF Chemical Precipitation Reaction Tank 2 - 2 CP-2-2 Hauled off site for reuse (given away) HAULR - GA Chemical Precipitation Reaction Tank 3 - 1 CP-3-1 Hauled off site for reuse (marketed and sold) SOLD Chemical Precipitation Reaction Tank 3 - 2 CP-3-2 Hauled off site for disposal HAUL Clarification, Primary - 1 CL-P-1 Mixed with fly ash for disposal MFA Clarification, Primary - 2 CL-P-2 On-site landfill (as reported in Table A-6) LANDF Clarification, Secondary - 1 CL-S-1 POND-1 POND-1 Clarification, Secondary - 2 CL-S-2 POND-2 POND-2 Clarification, Tertiary - 1 CL-T-1 POND-3 POND-3 Clarification, Tertiary - 2 CL-T-2 POND-4 POND-4 Constructed wetland - Cell 1 CW L -1 POND-5 POND-5 Constructed wetland - Cell 2 CW L -2 POND-6 POND-6 Constructed wetland - Cell 3 CW L -3 POND-7 POND-7 Constructed wetland - Cell 4 CW L -4 POND-8 POND-8 Constructed wetland - Cell 5 CW L -5 POND-9 POND-9 Constructed wetland - Cell 6 CW L -6 POND-10 POND-10 Constructed wetland system CW TS POND-A POND-A Equalization, Primary EQ-P POND-B POND-B Equalization, Secondary EQ-S POND-C POND-C Filter, Microfiltration - 1 FLT-M-1 WWT -1 WWT-1 Filter, Microfiltration - 2 FLT-M-2 WWT -2 WWT-2

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



## Wastew **ater Treatment Units Destinations**  **For Use in Tables and Questions Throughout Parts A, C, D, and F.** 

Approved: May 20, 2010

### Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems 

## Steam Electric Questionnaire Code Tables
Filter, Microfiltration - 3 FLT-M-3 WWT -3 WWT-3 Filter, Microfiltration - 4 FLT-M-4 WWT -4 WWT-4 Filter, Sand/Gravity - 1 FLT-S-1 WWT -5 WWT-5 Filter, Sand/Gravity - 2 FLT-S-2 WWT -6 WWT-6 Filter, Sand/Gravity - 3 FLT-S-3 WWT -A WWT-A Filter, Sand/Gravity - 4 FLT-S-4 WWT -B WWT-B Filter, Ultrafiltration - 1 FLT-U-1 WWT -C WWT-C Filter, Ultrafiltration - 2 FLT-U-2 Reuse as boiler water RECYC - BW Filter, Ultrafiltration - 3 FLT-U-3 Reuse as bottom ash sluice RECYC - BAS Filter, Ultrafiltration - 4 FLT-U-4 Reuse as combined ash sluice RECYC - CAS Filter press - 1 FP-1 Reuse as FGD slurry preparation water RECYC - FGDP Filter press - 2 FP-2 Reuse as FGD absorber makeup RECYC - FGDAB Holding tank HT Reuse as fly ash sluice RECYC - FAS Ion exchange IX Reuse as mill reject sluice RECYC - MRS Natural wetlands NW Reuse in cooling towers RECYC - CW pH adjustment - 1 PH-1 pH adjustment - 2 PH-2 pH adjustment - 3 PH-3 Reverse osmosis ROS Pond Unit - 1 SPD-1 Pond Unit - 2 SPD-2 Pond Unit - 3 SPD-3 Pond Unit - 4 SPD-4 Pond Unit - 5 SPD-5 Pond Unit - 6 SPD-6 Pond Unit - 7 SPD-7 Pond Unit - 8 SPD-8 Pond Unit - 9 SPD-9

**For Use in Tables and Questions Throughout Parts D and F. For Use in Tables and Questions Throughout Parts A, C, D,**  **and F.** 

## Destinations **Wastew ater Treatment Units** 

Approved: May 20, 2010

### Steam Electric Questionnaire Part B. Flue Gas Desulfurization (FGD) Systems 

## Steam Electric Questionnaire Code Tables
Pond Unit - 10 SPD-10 Centrifuge - 1 CENT-1 Pond Unit - 11 SPD-11 Centrifuge - 2 CENT-2 Pond Unit - 12 SPD-12 Centrifuge - 3 CENT-3 Pond Unit - 13 SPD-13 Centrifuge - 4 CENT-4 Pond Unit - 14 SPD-14 Hydrocyclones - 1 HYC-1 Settling tank - 1 ST-1 Hydrocyclones - 2 HYC-2 Settling tank - 2 ST-2 Hydrocyclones - 3 HYC-3 Settling tank - 3 ST-3 Hydrocyclones - 4 HYC-4 Settling tank - 4 ST-4 Filter press - 1 FP-1 Settling tank - 5 ST-5 Filter press - 2 FP-2 Thickener - 1 TH-1 Thickener - 1 TH-1 Thickener - 2 TH-2 Thickener - 2 TH-2 Vacuum drum filter - 1 VF-1 Vacuum drum filter - 1 VF-1 Vacuum drum filter - 2 VF-2 Vacuum drum filter - 2 VF-2 Vacuum filter belt - 1 VFB-1 Vacuum filter belt - 1 VFB-1 Vacuum filter belt - 2 VFB-2 Vacuum filter belt - 2 VFB-2 **Solids Handling Wastew**  **ater Treatment Units For Use in Tables and Questions Throughout Parts D and F.**  **For Use as Planned Solids Handling for the FGD Slurry Blowdown in Part B Table B-2.** 

Approved: May 20, 2010