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 D Instructions Part D Instructions

Part D Section 1

Part D Section 2

Wastewater Treatment Diagram Part D Section 3.1

Wastewater Treatment Wastewater Flows Part D Section 3.2

Part D Section 4.1

Closed Pond/Impoundment Unit Information Part D Section 4.2

Wastewater Treatment Unit Information - System Level Part D Section 5.1

Wastewater Treatment System Chemical Addition Part D Section 5.2

Part D Section 6.1

Part D Section 6.2

Part D Comments Part D Comments

Steam Electric Questionnaire Code Tables Code Tables

Pond/Impoundment System and Wastewater 

 Treatment System Equipment

Plant Pond/Impoundment Systems and Wastewater

 Treatment Systems

Pond/Impoundment System and Wastewater 

 Treatment System Identification

Steam Electric Questionnaire 

PART D - POND/IMPOUNDMENT SYSTEMS AND OTHER WASTEWATER TREATMENT 

OPERATIONS

Table of Contents

Active/Inactive/Open and Planned 

 Pond/Impoundment Unit Information

Pond/Impoundment System and Wastewater 

 Treatment System Costs

Approved: May 20, 2010
Steam Electric Questionnaire Part D. Instructions

Plant ID: Insert Plant ID

Plant Name: Insert Plant Name

PART D. 

A “wastewater treatment unit ” is defined as a unit operation used to remove pollutants 

from process wastewater. Wastewater treatment units include, but are not limited to: 

ponds/impoundments, chemical precipitation, pH adjustment, clarification, biological 

reactor, thickeners, filters, and constructed wetlands.

NOTE: If a pond/impoundment unit (as defined in Section 4.1) is part of a broader 

“wastewater treatment system” containing non-pond units (e.g., a 

pond/impoundment unit in a biological wastewater treatment system), it is not 

considered part of a pond/impoundment system.

A "pond/impoundment" is defined as a natural topographic depression, man-made

excavation, or diked area formed from earthen materials or man-made materials or a 

combination of them, which is designed to hold an accumulation of liquid process 

wastes or process wastes containing free liquids, and which is not an injection well. 

Examples of ponds/impoundments include holding, storage, settling, and aeration pits, 

ponds, and lagoons. It does not include building sumps and outdoor collection/transfer 

concrete basins.

A “pond/impoundment system ” is defined as a system consisting of one or more 

ponds/impoundments.

A “wastewater treatment system ” is defined as a combination of one or more 

“wastewater treatment units”, other than ponds/impoundments, designed to achieve 

wastewater treatment.

POND/IMPOUNDMENT SYSTEMS AND OTHER WASTEWATER 

TREATMENT OPERATIONS

INSTRUCTIONS

Part D requests information about all ponds/impoundments used (or planned to be used 

or under construction/installation by December 31, 2020) for the storage, treatment, 

and/or disposal of process wastewater, residues, or by-products (or sludges or water 

streams containing the residues or by-products) from the combustion of coal, petroleum 

coke, or oil, including but not limited to fly ash, bottom ash, boiler slag, or flue gas 

emission control residues. Additionally, Part D requests information about wastewater 

treatment systems, other than pond/impoundment systems, for the treatment of 

wastewaters from ash handling or FGD operations that are located at the plant or are 

planned to be located at the plant. Complete Part D if you operate one or more systems, 

or if you are currently constructing/installing, or planning to construct/install one or more 

systems by December 31, 2020.

Refer to the following definitions throughout Part D.

Approved: May 20, 2010
Steam Electric Questionnaire Part D. Instructions

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

requested in certain questions within Part D; 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 D, information is requested for pond/impoundment and wastewater 

treatment units and systems that are under construction/installation, or planned to be 

under construction/installation by December 31, 2020. Provide design information, or 

best engineering estimates as necessary, for these planned systems/units. Additionally, 

indicate “NA” if the information requested is not applicable for planned systems/units 

(e.g., a question that requests flow rate data for year 2009).

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

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

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

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

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

Part D, you may need to make copies of certain sections/questions. Instructions are 

provided throughout Part D regarding making copies. Note that pond/impoundment 

system (and unit) and wastewater treatment system ID's 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 pond/impoundment or 

wastewater treatment system.

Approved: May 20, 2010
Steam Electric Questionnaire Part D. Pond/Impoundment Systems a

Part: D

Section Title:

CBI? D1-1.CBI? D1-2.

 If you answered "No" to both Questions D1-1 and D1-2, do NOT complete the remainder of  Part D. Skip to the next Questionnaire Part. Otherwise, continue to Part D Section 2.

1. Plant Pond/Impoundment Systems and Wastewater Treatment SystemsDo you operate OR plan to operate (or begin construction/installation of) by December 31, 2020 any wastewater pond/impoundment systems, for the treatment of process wastewaters from ash handling or FGD operations?Have you used, do you use, OR do you plan to use (or begin construction/installation of) by December 31, 2020 a

storage, treatment, and/or disposal of process wastewater , residues , or by-products (or sludges or water stream

products) from the combustion of coal, petroleum coke, or oil, including but not limited to fly ash , bottom ash , boresidues? Note: This includes systems located on non-adjoining property that are under the operational control of the plant.Note: This includes ponds/impoundments located on non-adjoining property that are under the operational contro

Yes

YesNo

Yes

YesNo

D-1 
Steam Electric Questionnaire Part D. Pond/Impoundment Syst

Part: D

Section Title:

 Instructions:

CBI? D2-1.

 (Continue) 

CBI? D2-2. CBI? D2-3. 

 (Provide a copy of the summary/report) (Continue)Provide a description of the pilot- or full-scale study. Note the types of treatment technologies studied and the analytes measured wastewater treatment system. (Skip to Question D2-4)2. Pond/Impoundment System and Wastewater Treatment System IdentificationComplete Section 2 (Questions D2-1 through D2-7) for pond/impoundment systems and/or wastewater treatment systems that t

(or begin construction/installation of) by December 31, 2020, including those located on non-adjoining property, for the treatmenhandling or FGD operations. Please provide all free response answers in the highlighted yellow areas.Has the plant been involved with any ash or FGD wastewater treatment studies (pilot- or full-scale), including studies on pond/im

Are any of these studies ongoing? Was a summary and/or report describing/documenting the pilot- or full-scale study prepared (including internal and published re

Yes

YesYes

YesYesNoYesNoNo

D-2 
Steam Electric Questionnaire Part D. Pond/Impoundment Syst

CBI? D2-4.CBI? D2-5.

 (Continue)

CBI? D2-6.

 (Continue)NOTE: Do NOT include a pond/impoundment unit in Table D-1 if the pond/impoundment unit is or is planned to be part 

system containing non-pond wastewater treatment units (e.g., pond/impoundment unit in a biological wastewater treat

 (Skip to Section 4.1)List any ash or FGD wastewater treatment technologies that have been studied by the plant that are not covered by Questions D

been studied in bench-scale studies).List these pond/impoundment systems in Table D-1. For each pond/impoundment system, EPA assigned a number (e.g., PONDused throughout the remainder of the survey. In the "Plant Designation" column, provide the plant's name for each pond/impounPonds/Impoundments Included in the Pond System" column, identify all pond/impoundment units from Table A-4 that are includeDo you operate OR plan to operate (or begin construction/installation of) by December 31, 2020 any pond/impoundment system

adjoining property, for the treatment of process wastewaters from ash handling or FGD operations? Do you operate OR plan to operate (or begin construction/installation of) by December 31, 2020 any systems, including those loc

treatment of process wastewaters from ash handling or FGD operations? (Skip to Question D2-7)

Yes

YesNo

Yes

YesNo

Yes

D-3 
Steam Electric Questionnaire Part D. Pond/Impoundment Syst

Pond/ Impoundment 

System ID

Year Initially Brought 

Online Plant Designation

POND-1POND-2POND-3POND-4POND-5POND-6POND-7POND-8POND-9POND-10

Table D-1. Plant Pond/Impoundment Systems

Active/Inactive/Open Pond/Impoundment Systems

Individual Pond/Impoundments (Ident

Pond/Impoundm

SPD - 1 SPD - 3 SPD - 5

SPD - 6

SPD - 7SPD - 8

SPD - 2 SPD - 4 SPD - 1 SPD - 3 SPD - 5

SPD - 6

SPD - 7SPD - 8

SPD - 2 SPD - 4 SPD - 1 SPD - 3 SPD - 5

SPD - 6

SPD - 7SPD - 8

SPD - 2 SPD - 4 SPD - 1 SPD - 3 SPD - 5

SPD - 6

SPD - 7SPD - 8

SPD - 2 SPD - 4 SPD - 1 SPD - 3 SPD - 5

SPD - 6

SPD - 7SPD - 8

SPD - 2 SPD - 4 SPD - 1 SPD - 3 SPD - 5

SPD - 6

SPD - 7SPD - 8

SPD - 2 SPD - 4 SPD - 1 SPD - 3 SPD - 5

SPD - 6

SPD - 7SPD - 8

SPD - 2 SPD - 4 SPD - 1 SPD - 3 SPD - 5

SPD - 6

SPD - 7SPD - 8

SPD - 2 SPD - 4 SPD - 1 SPD - 3 SPD - 5

SPD - 6

SPD - 7SPD - 8

SPD - 2 SPD - 4 SPD - 1 SPD - 3 SPD - 5

SPD - 6

SPD - 7SPD - 8

SPD - 2 SPD - 4 

D-4 
Steam Electric Questionnaire Part D. Pond/Impoundment Syst

RET-POND-1RET-POND-2RET-POND-3RET-POND-4RET-POND-5POND-APOND-BPOND-C

CBI? D2-7.

 (Continue)Do you operate OR plan to operate (or begin construction/installation of) by December 31, 2020 any wastewater treatment systeadjoining property, other than pond/impoundment systems for the treatment of process wastewaters from ash handling or FGD oList these wastewater treatment systems in Table D-2. For each wastewater treatment system, EPA assigned a number (e.g., Wbe used throughout the remainder of the survey. In the “Plant Designation” column, provide the plant’s name for each wastewate

plant operates a chemical precipitation FGD wastewater treatment system that discharges to an ash pond/impoundment system 

EPA_D-1 and EPA_D-2 located at the bottom of Part D Section 3.1) the FGD wastewater treatment system should be identified 

ash pond/impoundment system should have been previously identified in Table D-1 (e.g., as POND-1).

 (Skip to Section 3.1)

Retired/Closed Pond/Impoundment Systems

Note that "Approximate Length of Piping from FGD Scrubber System" refers to the length of piping from the FGD solids separati

scrubber absorber if no FGD solids separation) to the beginning of the FGD wastewater treatment system. "Approximate Length Discharge" refers to the length of piping from the end of the FGD wastewater treatment system to either the beginning of the sub

wastewater discharge point, as appropriate. 

Planned Pond/Impoundment Systems

Yes

YesNo

RET SPD - 1 RET SPD - 3RET SPD - 2 RET SPD - 4RET SPD - 1 RET SPD - 3RET SPD - 2 RET SPD - 4RET SPD - 1 RET SPD - 3RET SPD - 2 RET SPD - 4RET SPD - 1 RET SPD - 3RET SPD - 2 RET SPD - 4RET SPD - 1 RET SPD - 3RET SPD - 2 RET SPD - 4SPD - A SPD - C SPD - ESPD - B SPD - DSPD - A SPD - C SPD - ESPD - B SPD - DSPD - A SPD - C SPD - ESPD - B SPD - D

D-5 
Steam Electric Questionnaire Part D. Pond/Impoundment Syst

Approximate 

Length of Pipin

from FGD 

Scrubber Syste

(ft) 

WWT-1WWT-2WWT-3WWT-4WWT-5WWT-6WWT-AWWT-BWWT-C

Operating Wastewater Treatment Systems

Planned Wastewater Treatment Systems

Table D-2. Plant Wastewater Treatment Systems

Treatment System Footprint 

(ft2 Plant Designation )

FGD Waste

Year Initially Brought On 

Line

Wastewater 

Treatment System ID

D-6 
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and O

Plant ID: In

Plant Name: In

Pond/Impoundment System ID or Wastewater Treatment System ID: In

Part: D

Section Title: 3.1. Wastewater Treatment Diagram

 Instructions:

CBI? D3-1.

Complete Section 3.1 (Question D3-1) for each pond/impoundment system or wastewater treatment s

and Table D-2, including planned systems, systems under construction/installation, or planned to be u

December 31, 2020. Enter the pond/impoundment system ID or wastewater treatment system ID in th

provided above (use the pond/impoundment system ID or wastewater treatment system ID assigned iMake a copy of Section 3.1 for each pond/impoundment system or wastewater treatment system idenusing the "Copy Section 3.1" button below.Attach a block diagram that shows the pond/impoundment system or wastewater treatment system opwastewaters that currently enter or are planned to enter the pond/impoundment system or wastewater ultimate destinations of the pond/impoundment system or wastewater treatment system effluent(s). Sp

diagram are provided in the checklist below. The diagram should have a similar level of detail as EPAand EPA_D-2.NOTE: You may use an existing diagram, such as a water balance diagram included in the plan

the additional required information on the diagram by hand. Provide as many diagrams as necessary to convey the information requested in the checklist below. Nthe upper right corner; the first block diagram should be numbered D-1, the second D-2, etc. Include t

pond/impoundment system ID or wastewater treatment system ID in the upper right hand corner of the 

Diagram attached.

Copy Section 3.1

Yes

D-7 
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and O

Mark the boxes below to verify that you have completed each checklist item...

Identify the final, general destination of the treated process wastewater and waste streams (e.g

effluent to POTW or surface waters; solid wastes to on- or off-site destinations). Use codes froTables" tab provided at the end of this workbook, when applicable.Indicate, as appropriate, where treated process wastewater is reused or recycled within the pla

pond/impoundment water as fly ash sluice).Include the average annual (2009) flow rates for influent and effluent streams from the wastewadiagram (in gpm or gpd). For planned pond/impoundment systems and wastewater treatment srates for the system. Note that these should be the same flow rates that are entered into Tables 

and D3-3. If the actual number of days of operation for 2009 is not known, the total annual flow a comment added to the Comments page. If the process wastewater stream is intermittent, proexample “100 gal, twice/day, 100 dpy” or “1000 gpm, 4 hpd, 365 dpy”. For sludges, provide amInclude NPDES permit outfall numbers, if applicable.

Indicate where chemical addition occurs (i.e., into or between which wastewater treatment units

wastewater treatment units, indicate and note on the diagram where within or near the pond/imadded (e.g., within the pond/impoundment near the process wastewater influent point, within th

effluent, in the effluent/discharge canal). The chemicals indicated should correspond to the cheTable D-13.

Block Diagram Checklist

Include the block diagram number, plant name, plant ID, and pond/impoundment system ID or 

on the diagram.Include each pond/impoundment or wastewater treatment unit operation. Show all influent and and label all influent and effluent streams from the pond/impoundment system or wastewater tr

tables on the "Code Tables" tab provided at the end of this workbook. Note that the "Code Tablwastewater treatment units that are operated in series and/or in parallel (e.g., in EPA_D-1, CheTank 1-1 and Chemical Precipitation Reaction Tank 2-1 are in series). Effluent streams may incsludges . If applicable, use EPA-assigned numbers from Part A or B (e.g., FGD-1) to label process operadoes not have an EPA-assigned number (e.g., boiler, air preheater), use the plant-designated n

When sources or destinations are not shown on the diagram (i.e., the stream is entering from a 

diagram), describe the source or destination and add the block diagram number, when approprlocation can be seen. Use codes from the code tables on the "Code Tables" tab provided at the 

D-8 
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and O

Example EPA_D-1. Block Diagram for FGD Wastewater Treatment Sy

If you believe that the diagram should be treated as confidential, stamp it "Confidential" or write "Confiany diagram is not marked "Confidential", it will be considered nonconfidential under 40 CFR Part 2, S

If any of the statements above were not checked, revise the block diagram(s) and ensure all st

Review:

D-9 
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and O

NOTE: The codes used in these diagrams correspond the code tables on the "Code Tables" t

workbook.

Example EPA_D-2. Block Diagram for Ash Pond System

D-10 
Steam Electric Questionnaire Part D. Pond/Impou

Pond/Impoundment System ID or Wa

Part: D

Section Title: 3.2. Wastewater Treatment Wastewater Flows

 Instructions:

CBI? D3-2.

200 gpm 10 hpd 365 dpy

Other: OR gpd dpy Other:

175 gpm 24 hpd 365 dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

Wastewater Treatment Unit ID

Complete Section 3.2 (Question D3-2 and D3-3) for each pond/impoundment system or wastewater treatment system identified in Table D-1 and Table D-2, including planneor planned to be under construction/installation by December 31, 2020. Enter the pond/impoundment system ID or wastewater treatment system ID in the yellow highlighted ssystem ID or wastewater treatment system ID assigned in Table D-1 and Table D-2).Make a copy of Section 3.2 for each pond/impoundment system or wastewater treatment system identified in Table D-1 and Table D-2 using the "Copy Section 3.2" button beComplete a row in Table D-3 for each process wastewater stream or treated wastewater stream that enters this pond/impoundment system or wastewater treatment system. wastewater treatment systems, provide the design flow rates for the system. Use the process and treated wastewater terms provided in the drop down menus. Note that these Tables" tab provided at the end of this workbook.Note: The examples in Tables D-3 and D-4 are derived from the EPA examples diagrams, EPA_D-1 and EPA_D-2, provided at the bottom of Part D Section 3.1.

Table D-3. Pond/Impoundment System or Wastewater Treatment System Influent Flows in 2009

Process or Treated Wastewater Average Annual (2009) Wastewater Flow Rate

Example (from EPA_D-1):Example (from EPA_D-2):

Yes

FGD scrubber purgeWWT-1 Effluent

Copy Section 3.2

Equalization, PrimaryPond Unit - 1Wastewater Treatment Units

Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)

Wastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment Units

D-11 
Steam Electric Questionnaire Part D. Pond/Impou

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

gpm hpd dpy

Other: OR gpd dpy Other:

Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)Process or Treated Wastewater (Influent Table D-3)

Process or Treated Wastewater (Influent Table D-3)

Wastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment Units

D-12 
Steam Electric Questionnaire Part D. Pond/Impou

CBI? D3-3.

*Provide the NPDES permit outfall number of the effluent in the last column of the table, if applicable.

% Moisture

Example (from EPA_D-1):

175 gpm 24 hpd 365 dpy NA NA 

Other: OR NA gpd NA dpy Other: OthExample (from EPA_D-1):

NA gpm NA hpd NA dpy NA NA 

Other: OR 10,000 gpd 365 dpy Other: Oth

Example (from EPA_D-2):

NA gpm NA hpd NA dpy 500 30 

Other: OR NA gpd NA dpy Other: Oth

Example (from EPA_D-2):

5,000 gpm 24 hpd 365 dpy NA NA 

Other: OR NA gpd NA dpy Other: OthExample (from EPA_D-2):

1,175 gpm 24 hpd 365 dpy NA NA 

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

Treated Wastewater Average Annual (2009) Wastewater Flow Rate

Solids and Sludge

Amount (tpd or gpm) 

Table D-4. Pond/Impoundment System or Wastewater Treatment System Effluent Flows in 2009

Complete a row in Table D-4 for each treated wastewater stream or sludge stream that exits this pond/impoundment system or wastewater treatment system (i.e., streams thaplanned pond/impoundment systems and wastewater treatment systems, provide the design flow rates for the system. Use the treated wastewater, wastewater treatment unit, menus. Note that these terms originated from code tables on the "Code Tables" tab provided at the end of this workbook.

Fi

Wastewater Treatment Unit ID

Effluent - 1

Filter backwash

Sludge

Effluent - 2

Effluent - 3Treated Wastewater (Effluents Table D-4)

Treated Wastewater (Effluents Table D-4)Treated Wastewater (Effluents Table D-4)

Treated Wastewater (Effluents Table D-4)Treated Wastewater (Effluents Table D-4)Treated Wastewater (Effluents Table D-4)

Treated Wastewater (Effluents Table D-4)

Treated Wastewater (Effluents Table D-4)Treated Wastewater (Effluents Table D-4)

tpdgpmtpdgpmgpmtpdtpdgpmtpdgpmtpdgpmtpdgpmtpdgpmtpdgpmtpdgpmtpdgpmtpdgpmtpdgpm

NAEqualization, Secondary

NA

NA

NAWastewater Treatment Units

PONDNA

Haule

Reus

Disch

Desti

Yes

Wastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment Units

DestiDestiDestiDestiDestiDestiDestiDesti

tpd

gpm

D-13 
Steam Electric Questionnaire Part D. Pond/Impou

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

gpm hpd dpy

Other: OR gpd dpy Other: Oth

Treated Wastewater (Effluents Table D-4)

Treated Wastewater (Effluents Table D-4)Treated Wastewater (Effluents Table D-4)

Treated Wastewater (Effluents Table D-4)

Treated Wastewater (Effluents Table D-4)

Treated Wastewater (Effluents Table D-4)

Treated Wastewater (Effluents Table D-4)Treated Wastewater (Effluents Table D-4)

Treated Wastewater (Effluents Table D-4)Treated Wastewater (Effluents Table D-4)Treated Wastewater (Effluents Table D-4)

Treated Wastewater (Effluents Table D-4)

Treated Wastewater (Effluents Table D-4)Treated Wastewater (Effluents Table D-4)Treated Wastewater (Effluents Table D-4)Treated Wastewater (Effluents Table D-4)Treated Wastewater (Effluents Table D-4)Treated Wastewater (Effluents Table D-4)

tpdgpmtpdgpmtpdgpmtpdgpmtpdgpmtpdgpmtpdgpmtpdgpmtpdgpmtpdgpmtpdgpmtpdgpmtpdgpmtpdgpmtpdgpmtpdgpmtpdgpmtpdgpm

Wastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment Units

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D-14 
Steam Electric Questionnaire Part D. Pond/Impou

Part: D

Section Title:

 Instructions:

CBI? D4-1.

 (Continue)

CBI? D4-2.

Residence time, hours (as currently operated)Life of pond/impoundment unit, years (based on current estimation)

Number of cells in pond/impoundment unit

CBI? D4-3. Complete Table D-5. Provide the pond/impoundment unit's volume, surface area, bottom and top elevation, freeboard height, maximum height of berms and dams above 

placed in the pond/impoundment when it was originally built or planned/designed, at its current status, and at its expected end of life. Additionally, provide the expected yeacolumn. Volume should reflect the free water volume, including the stored solids. For planned pond/impoundment units, enter "NA" in all fields in the "Current" column. Figudimensions.Note: Respondents are not required to take new measurements to provide this data; however, best available information should be used to complete Table D-5.

4.1. Active/Inactive/Open and Planned Pond/Impoundment Unit InformationComplete Section 4.1 (Questions D4-1 through D4-12) for each active/inactive/open pond/impoundment unit used OR planned to be used (or constructed/installed), includ

December 31, 2020 for the storage, treatment, and/or disposal of process wastewater, residues , or by-products (or sludges or water streams containing the residues or bycoke, or oil, including but not limited to fly ash, bottom ash, boiler slag, or flue gas emission control residues. Use the pond/impoundment unit IDs assigned in Table A-4.

Make a copy of Section 4.1 for each active/inactive/open and planned pond/impoundment units used (or planned to be used) for the storage, treatment, and/or disposal of 

sludges or water streams containing the residues or by-products) from the combustion of coal, petroleum coke, or oil, including but not limited to fly ash, bottom ash, boiler "Copy Section 4.1" button below.Provide the residence time of the process wastewater in the pond/impoundment unit, the life of the pond/impoundment unit (based on the current estimation), and the numDo you use OR plan to use (or begin construction/installation of) by December 31, 2020, any active/inactive/open ponds/impoundments, including those located on non-addisposal of process wastewater, residues, or by-products (or sludges or water streams containing the residues or by-products) from the combustion of coal, petroleum coke

ash, boiler slag, or flue gas emission control residues?

 (Skip to Section 4.2)NOTE: If a pond/impoundment unit is part of a broader wastewater treatment system containing non-pond wastewater treatment units (e.g., a pond/impoundment unit in a treatment system), complete questions in this section for the pond/impoundment unit.

Yes

Copy Section 4.1

Yes

YesNo

Yes

D-15 
Steam Electric Questionnaire Part D. Pond/Impou

Originally Built or 

Planned/Designed Current Expected End of Life

Volume, ft3Surface area, ft2Bottom elevation, ftTop elevation, ftFreeboard height, ftMaximum height of berms/dams above grade, ftTotal solids placed in the pond/impoundment, tonsExpected year of closure/retirement

Table D-5. Active/Inactive/Open and Planned Pond/Impoundment Information

 Figure D-1. Pond/Impoundment Dimensions

D-16 
Steam Electric Questionnaire Part D. Pond/Impou

CBI? D4-4.

 (Complete Table D-6)

Liner Layer Number (number 

from inner to outer layer) Type of Liner

Thickness of Liner Layer 

(cm)

Permeability of Liner Layer 

(cm/sec)

CBI? D4-5.

Year of last dredgingFrequency of dredging that year, dpyAmount of material removed that year, tonsNumber of times dredged in the last five yearsNumber of days dredged in the last five yearsAmount of material removed in the last five years, tons

 (Skip to Question D4-7) (Pond/Impoundment is planned to be constructed. Skip to Question D4-10)

Table D-6. Pond/Impoundment Unit Liner

Does the pond/impoundment unit have a liner ? (Pond/Impoundment is planned to be constructed. Information is currently unavailable. Skip to Question D4-10).

 (Skip to Question D4-5)Has the pond/impoundment unit ever been dredged?

Yes (Provide following information)NoNA

Yes

YesNoNA

Compacted clayGeosynthetic clayHigh density polyethylene (HDPE)Other (provide below:)

Yes

Compacted clayGeosynthetic clayHigh density polyethylene (HDPE)Other (provide below:)Compacted clayGeosynthetic clayHigh density polyethylene (HDPE)Other (provide below:)Compacted clayGeosynthetic clayHigh density polyethylene (HDPE)Other (provide below:)

D-17 
Steam Electric Questionnaire Part D. Pond/Impou

CBI? D4-6.CBI? D4-7.

 (Continue)

CBI? D4-8.CBI? D4-9.

$

CBI? D4-10.

(Skip to Question D4-12)

Provide the total cost associated with the expansion(s). Total costs should include labor, materials, energy, hazardous and nonhazardous waste disposal, purchased equip

engineering costs, construction expenses, and any other costs available.

Total cost of expansion

Indicate where the dredged solids are transferred or are planned to be transferred.Has the pond/impoundment unit been expanded since the date it was built?Describe any expansion(s), since January 1, 2000, to the pond/impoundment unit, including the starting and ending dimensions.Identify the type of expansion.Indicate the pollutants targeted for removal by this pond/impoundment unit using techniques other than solely settling (e.g., adding chemicals to remove certain metals). [C

 (Skip to Question D4-10) (Pond/Impoundment is planned to be constructed. Skip to Question D4-10)

Dredged solids used in embankment construction.Dredged solids transferred to landfill.Dredged solids marketed/sold for reuse.Other (Explain):

Yes

Yes No NA

Yes

Yes

Metals (specify):TSSNitrogen compounds (ammonia, nitrate, nitrite)Organic AcidsChlorine or other oxidizing agentsOil and greaseOther: NA

Yes

Lateral expansionVertical expansionBoth lateral and vertical expansion

Yes

D-18 
Steam Electric Questionnaire Part D. Pond/Impou

CBI? D4-11.

Pollutant:

Limitation:

Pollutant:

Limitation:

Pollutant:

Limitation:

CBI? D4-12.

 (Complete Table D-7)

Chemical Type Trade Name Manufacturer Purpose

Location of 

Chemical 

Addition

Average Dose 

Concentration 

(g/L)

A

Table D-7. Chemicals Used in Pond/Impoundment Unit Operations

 (Pond/impoundment is planned to be constructed. Provide information in Table D-7 to the extent possible based on plans.)

Did the plant add chemicals to this pond/impoundment unit in 2009?Note that "Chemical Type" refers to the generic name of the chemical added to the pond/impoundment (e.g., lime, sodium hydroxide, alum, polymer ). “Average concentration of the chemical within the pond/impoundment unit just after it is added to the unit. In the “Location of Chemical Addition” column, indicate wher

chemical is added (e.g., within the pond/impoundment near the process wastewater influent point, within the pond/impoundment near the effluent, in the efflueonly on a yearly basis, divide the yearly value by the approximate number of days the plant added chemicals (which should be the same estimate for the "FreqOf the pollutants listed in D4-10, which effluent limitation(s) drives/will drive the operation of this pond/impoundment unit? Provide the pollutant and the limitation (mg/L or u (Skip to Section 4.2)

Yes

YesNoNA

Yes

UnitsUnitsUnits

D-19 
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and Other W

Plant ID: Insert 

Plant Name: Insert 

Pond/Impoundment Unit ID: Insert 

Part: D

Section Title: 4.2. Closed Pond/Impoundment Unit Information

 Instructions:

CBI? D4-13.

 (Continue)Are there any ponds/impoundments closed on or after January 1, 2000, including those located on non

were used for the storage, treatment, and/or disposal of residues or by-products (or sludges or water st

residues or by-products) from the combustion of coal, petroleum coke, or oil, including but not limited to slag, or flue gas emission control residues?Complete Section 4.2 (Questions D4-13 through D4-24) for all pond/impoundment units closed on or aincluding those located on non-adjoining property, that were used for the storage, treatment, and/or diswastewater , residues , or by-products (or sludges or water streams containing the residues or by-produ

coal, petroleum coke, or oil, including but not limited to fly ash, bottom ash, boiler slag, or flue gas emis

pond/impoundment unit IDs assigned in Table A-4).Make a copy of Section 4.2 for each closed pond/impoundment unit, including those located on non-adjused for the storage, treatment, and/or disposal of process wastewater, residues, or by-products (or slucontaining the residues or by-products) from the combustion of coal, petroleum coke, or oil, including b

bottom ash , boiler slag, or flue gas emission control residues using the "Copy Section 4.2" button below

NOTE: If a pond/impoundment was part of a broader wastewater treatment system containing no

treatment units (e.g., a pond/impoundment unit in a biological wastewater treatment system), co

section for the pond/impoundment unit.

 (Skip to Section 5.1)

Copy Section 4.2

Yes

YesNo

D-20 
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and Other W

CBI? D4-14.

Date Closed (month/day/year)Life of pond/impoundment unit (years, actual)Number of cells in pond/impoundment unit

CBI? D4-15.

Originally Built End of Life

Volume, ft3Surface area, ft2Bottom elevation, ftTop elevation, ftFreeboard height, ftMaximum height of berms/dams above grade, ftTotal solids placed in the pond/impoundment, tons

Table D-8. Closed Pond/Impoundment Information

Provide the date the pond/impoundment unit was closed, the actual life of the pond/impoundment unit, 

the pond/impoundment unit.Complete Table D-8. Provide the pond/impoundment unit's volume, surface area, bottom and top eleva

maximum height of berms and dams above the surrounding grade, and the total quantity of solids placewhen it was originally built and at its end of life, prior to any solids removal/cleaning. Volume should refl

(accounting for any expansions) free water volume, including the stored solids. Please refer back to Figpond/impoundment dimensions.

YesYes

D-21 
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and Other W

CBI? D4-16.

 (Complete Table D-9)

Liner Layer Number 

(number from inner to 

outer layer) Type of Liner 

Thickness of Liner 

Layer (cm)

Per

 (Skip to Question D4-17)

Table D-9. Pond/Impoundment Unit Liner

Does the pond/impoundment unit have a liner ?

Yes

Compacted clayGeosynthetic clayHigh density polyethylene (HDPE)Other (provide below:)Compacted clayGeosynthetic clayHigh density polyethylene (HDPE)Other (provide below:)Compacted clayGeosynthetic clayHigh density polyethylene (HDPE)Other (provide below:)Compacted clayGeosynthetic clayHigh density polyethylene (HDPE)Other (provide below:)Compacted clayGeosynthetic clayHigh density polyethylene (HDPE)Other (provide below:)

YesNo

D-22 
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and Other W

CBI? D4-17.

 (Complete Table D-10)

Cap/Cover Layer Number 

(number from inner to 

outer layer) Type of Cap/Cover Layer

Thickness of 

Cap/Cover Layer (cm)

Pe

 (Skip to Question D4-18)

Table D-10. Pond/Impoundment Unit Cap/Cover

Does the pond/impoundment unit have a cap/cover?

YesNo

Yes

Compacted clayGeosynthetic clayVegetative coverHigh density polyethylene (HDPE)Other (provide below:)Compacted clayGeosynthetic clayVegetative coverHigh density polyethylene (HDPE)Other (provide below:)Compacted clayGeosynthetic clayVegetative coverHigh density polyethylene (HDPE)Other (provide below:)

D-23 
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and Other W

Compacted clayGeosynthetic clayVegetative coverHigh density polyethylene (HDPE)Other (provide below:)Compacted clayGeosynthetic clayVegetative coverHigh density polyethylene (HDPE)Other (provide below:)Compacted clayGeosynthetic clayVegetative coverHigh density polyethylene (HDPE)Other (provide below:)

D-24 
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and Other W

CBI? D4-18.

 (Continue)

CBI? D4-19.CBI? D4-20.

$

CBI? D4-21.

 (Provide a copy of the closure plan)

 (Continue) (Skip to Question 4-21)Was the pond/impoundment unit expanded during its life?Identify the type of expansion.Describe any expansion(s), since January 1, 2000, to the pond/impoundment unit, including the starting Did the plant have a closure plan for this pond/impoundment unit?Provide the total cost associated with the expansion(s). Total costs should include labor, materials, ene

nonhazardous waste disposal, purchased equipment, installation, buildings, site preparation, land, engi

expenses, and any other costs available.

Total cost of expansion

Yes No

Lateral expansionVertical expansionBoth lateral and vertical expansions

YesNo

YesYesYesYes

D-25 
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and Other W

CBI? D4-22.CBI? D4-23. Has the plant built any structures on top of the closed pond/impoundment?

 (Continue)

CBI? D4-24. Is the plant performing or does it intend to perform long-term groundwater, soil, or overflow monitoring o

pond/impoundment unit?Provide a description of the structure(s) and any challenges that the plant faced building on top of the p (Skip to Question D4-24)Describe the closure process, the required steps, and the costs associated with the closure.Note: Total costs should include labor, materials, energy, hazardous and nonhazardous waste dequipment, installation, buildings, site preparation, land, engineering costs, construction expens

available.Note: If you attached a closure plan for the previous question that includes information on the reassociated costs of the closure, do not answer this question and indicate that the information is 

closure plan.

Information provided in attached closure plan.

Yes

Yes

Yes

YesNo

Yes. Describe the monitoring plan:No

D-26 
Steam Electric Questionnaire Part D. Pond/Impoundment Syst

Wastewater 

Part: D

Section Title:

 Instructions:

CBI? D5-1.

 (Continue)

CBI? D5-2.

Plant Designation

Date Added to 

Wastewater 

Treatment System 

(month/day/year)

Volume 

(ft3)

Footprint/ 

Surface 

Area (ft2)

Residence 

Time (hours)

Other:

Pond ID:

Other:

Pond ID:

Other:

Pond ID:

Other:

Pond ID:

 (Skip to Part D Section 6.1)

5.1. Wastewater Treatment Unit Information - System LevelDid you identify any wastewater treatment systems in Table D-2?

Wastewater Treatment Unit ID

Table D-11. Wastewater Treatment Units

Complete Section 5.1 (Questions D5-1 through D5-12) for each wastewater treatment system identified in Table D-2, including planned (under construction/i

construction/installation by December 31, 2020) wastewater treatment systems. Enter the wastewater treatment system ID in the space provided above (use in Table D-2).Make a copy of Section 5.1 for each wastewater treatment system identified in Table D-2 using the "Copy Section 5.1" button below.NOTE: If the wastewater treatment system includes a pond/impoundment unit, include the pond/impoundment unit in Table D-11.

Materials of Cons

In Table D-11, list all wastewater treatment units comprising the wastewater treatment system including units that are under construction/installation, or plann

by December 31, 2020, included in the wastewater treatment system. For each wastewater treatment unit, assign an ID using the wastewater treatment unit t(e.g., Clarification, Primary-1), which will be used throughout the remainder of the survey; however, if a pond/impoundment unit is included as part of the waspond/impoundment unit ID assigned in Table A-4 in the space labeled "Pond ID". The drop down menu accounts for the possibility of multiple wastewater trea

sequentially. Note that these terms originated from the code tables on the "Code Tables" tab, provided at the end of this workbook. 

For example, if the wastewater treatment system includes two clarifiers, select Clarification, Primary-1 for the first clarifier and Clarification, Secondary-1 for thcolumn, provide the plant’s name for each wastewater treatment unit. In the “Date Added to WWT System” column, either enter the date the unit was/will be i“original” if the unit was part of the original wastewater treatment system installation. 

Yes

Wastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment Units

Copy Section 5.1

Yes

YesNo

316L stainless steel317LM stainless steel317LMN stainless steel

Carbon steel, lined with: 

316L stainless steel317LM stainless steel317LMN stainless steelCarbon steel, lined with: 316L stainless steel317LM stainless steel317LMN stainless steelCarbon steel, lined with: 316L stainless steel317LM stainless steel317LMN stainless steelCarbon steel, lined with: 

D-27 
Steam Electric Questionnaire Part D. Pond/Impoundment Syst

Other:

Pond ID:

Other:

Pond ID:

Other:

Pond ID:

Other:

Pond ID:

Other:

Pond ID:

Other:

Pond ID:

Other:

Pond ID:

Other:

Pond ID:

Other:

Pond ID:

Other:

Pond ID:

Other:

Pond ID:

Other:

Pond ID:

Other:

Pond ID:

Other:

Pond ID:

Other:

Pond ID:

Wastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment Units

Wastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment Units

Wastewater Treatment Units

Wastewater Treatment UnitsWastewater Treatment Units

316L stainless steel317LM stainless steel317LMN stainless steelCarbon steel, lined with: 316L stainless steel317LM stainless steel317LMN stainless steelCarbon steel, lined with: 316L stainless steel317LM stainless steel317LMN stainless steelCarbon steel, lined with: 316L stainless steel317LM stainless steel317LMN stainless steelCarbon steel, lined with: 316L stainless steel317LM stainless steel317LMN stainless steelCarbon steel, lined with: 316L stainless steel317LM stainless steel317LMN stainless steelCarbon steel, lined with: 316L stainless steel317LM stainless steel317LMN stainless steelCarbon steel, lined with: 316L stainless steel317LM stainless steel317LMN stainless steelCarbon steel, lined with: 316L stainless steel317LM stainless steel317LMN stainless steelCarbon steel, lined with: 316L stainless steel317LM stainless steel317LMN stainless steelCarbon steel, lined with: 316L stainless steel317LM stainless steel317LMN stainless steelCarbon steel, lined with: 316L stainless steel317LM stainless steel317LMN stainless steelCarbon steel, lined with: 316L stainless steel317LM stainless steel317LMN stainless steelCarbon steel, lined with: 316L stainless steel317LM stainless steel317LMN stainless steelCarbon steel, lined with: 316L stainless steel317LM stainless steel317LMN stainless steelCarbon steel, lined with: 

D-28 
Steam Electric Questionnaire Part D. Pond/Impoundment Syst

Other:

Pond ID:

Other:

Pond ID:

Other:

Pond ID:

Other:

Pond ID:

CBI? D5-3.

Average design flow rate, gpmMaximum design flow rate, gpmTypical flow rate in 2009, gpmMaximum daily flow rate in 2009, gpmMaximum daily flow rate in 2009, gpdDuration of effluent transfers from treatment system in 2009, hpdFrequency of effluent transfers from treatment system in 2009, dpy

CBI? D5-4.

(Skip to Question D5-6)

Provide the design flow rate for the wastewater treatment system, as well as both the average and maximum flow rates for 2009. In addition, provide the dura

transfers from the wastewater treatment system in 2009. If the wastewater treatment system is planned, only provide the design flow rate and enter "NA" in aIndicate the pollutants targeted for removal by this wastewater treatment system using techniques other than solely settling (e.g., adding chemicals to remove [Check all boxes that apply.]

Yes

Wastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment Units

316L stainless steel317LM stainless steel317LMN stainless steelCarbon steel, lined with: 316L stainless steel317LM stainless steel317LMN stainless steelCarbon steel, lined with: 316L stainless steel317LM stainless steel317LMN stainless steelCarbon steel, lined with: 316L stainless steel317LM stainless steel317LMN stainless steelCarbon steel, lined with: 

Metals (specify):TSSNitrogen compounds (ammonia, nitrate, nitrite)Organic AcidsChlorine or other oxidizing agentsOil and greaseOther: NA

Yes

D-29 
Steam Electric Questionnaire Part D. Pond/Impoundment Syst

CBI? D5-5.

Pollutant:

Limitation:

Pollutant:

Limitation:

Pollutant:

Limitation:

CBI? D5-6.

 (Continue) (Skip to Question D5-8)

CBI? D5-7. Is the plant currently performing sulfide addition?CBI? D5-8.CBI? D5-9.CBI? D5-10.

Provide information on any impacts that climate had, or will have, on the installation of the wastewater treatment system (e.g., equipment had to be housed in

was necessary to protect equipment in winter, warm climate allowed all wastewater treatment to be located outdoors).Provide any bid proposals and/or engineering reports that were prepared since January 1, 1995 for the wastewater treatment system.Note: All bid proposals and/or engineering reports originally submitted to the plant as CBI, should be marked CBI for the purpose of this collection 

Of the pollutants listed in D5-4, which effluent limitation(s) drives/will drive the operation of this wastewater treatment system? Provide the pollutant and the lim

ug/L).Is this wastewater treatment system capable of performing sulfide addition?Provide information on any impacts that space availability had, or will have, on the design and/or cost of the wastewater treatment system (e.g., cost increase

system units into tight spaces and/or moving other equipment to accommodate the treatment system units).

I have attached the bid proposals/engineering reports.I did not attach the bid proposals/engineering reports. Below, explain why:

YesYesYesYes

UnitsUnitsUnits

Yes

YesNo

Yes

YesNo

D-30 
Steam Electric Questionnaire Part D. Pond/Impoundment Syst

CBI? D5-11.

Description of Improvement

Expected Date of 

Improvement 

(month/day/year)

Total 

Capital 

Cost ($)

Other:

Pond ID:

Other:

Pond ID:

Other:

Pond ID:

Other:

Pond ID:

Other:

Pond ID:

CBI? D5-12.

 (Continue) (Skip to Section 5.2)

Table D-12. Planned Improvements to the Wastewater Treatment System

In Table D-12, list all planned improvements (including those currently under construction/installation or those planned to be under construction/installation by 

treatment system. For each planned improvement to the wastewater treatment system, provide the WWT Unit ID the improvement pertains to (if applicable), however, if the improvement relates directly to a pond/impoundment, use the pond/impoundment ID assigned in Table A-4. Provide a description of the improimprovement, and the total capital cost related to the improvement.Note: Total capital costs should include purchased equipment, installation, buildings, site preparation, land, engineering costs, construction expePlease identify which pollutants and/or limits, in particular, the improvements or system will target.

Wastewater Treatment Unit ID

Were any of the above planned improvements to the wastewater treatment system, or the planned wastewater treatment system, planned in preparation for p

Yes

Wastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment Units

Yes

YesNo

D-31 
Steam Electric Questionnaire Part D. Pond/Impound

W

Part: D

Section Title:

 Instructions:

CBI? D5-13.

 (Complete Table D-13) (Skip to Section 6.1)

Chemical Type Trade Name Manufacturer Purpose

Average Dose 

Concentration (g/L)

Other:Other:Other:Other:Other:Other:Other:

Wastewater Treatment Unit ID 

(Identified in Table D-11)

5.2. Wastewater Treatment System Chemical Addition

Averag

Complete Section 5.2 (Question D5-13) for each wastewater treatment system identified in Table D-2 (including those under construction/installation or planned to be 2020). Enter the wastewater treatment system ID in the spaces provided above (use wastewater treatment system IDs assigned in Table D-2).Make a copy of Section 5.2 for each wastewater treatment system identified in Table D-2 using the "Copy Section 5.2" button below.

Table D-13. Chemicals Used in Wastewater Treatment Unit Operations

Complete Table D-13 for each unit (as defined in Table D-11) that chemicals are added to in the wastewater treatment system. Complete a row for each chemical addNote that "Chemical Type" refers to the generic name of the chemical added to the wastewater treatment unit (e.g., lime, organosulfide). "Average Dose Concentratiochemical within the wastewater treatment unit just after it is added to the unit. If chemical addition is known only on a yearly basis, divide the yearly value by the appro(which should be the same estimate for the "Frequency of Addition" column).Did the plant add chemicals to any wastewater treatment units in 2009?

 (Wastewater treatment unit is planned to be constructed. Provide information in Table D-13 to the extent possible based on plans.)

Yes

NoNA

Copy Section 5.2

Wastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment Units

Yes

D-32 
Steam Electric Questionnaire Part D. Pond/Impound

Other:Other:Other:Other:Other:Other:Other:Other:Other:Other:Other:Other:Other:Other:Other:Other:Other:Other:Other:Other:

Wastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment Units

D-33 
Steam Electric Questionnaire Part D. Pond/Impound

Other:Other:

Wastewater Treatment UnitsWastewater Treatment UnitsWastewater Treatment Units

D-34 
Steam Electric Questionnaire Part D. Pond/Impoundment Syste

Pond/Impoundment System ID or Wastewater T

Part: D

Section Title:

 Instructions:

CBI? D6-1.

 (Continue) (Skip to next Questionnaire Part)

CBI? D6-2.

O&M Cost Category

Operating labor $ $ Maintenance labor $ $ Maintenance materials $Chemicals $6.1. Pond/Impoundment System and Wastewater Treatment System CostsProvide annual O&M cost data in Table D-14 for each pond/impoundment system identified in Table D-1, that includes at least one pond/impoundment after January 1, 2000, and/or wastewater treatment system, identified in Table D-2, that began operating at the plant on or after January 1, 2000, that w

engineering estimates when actual data are not readily available. If you provide an estimate, note the methods that were used to make the estimates in 

2009 Annual Cost 2009 Rate 

Complete Sections 6.1 and 6.2 (Questions D6-1 through D6-6) for each pond/impoundment system identified in Table D-1, that includes at least one po

at the plant on or after January 1, 2000. For example if a pond/impoundment system began operating in 1996, but a new pond/impoundment was added pond/impoundment system must be provided for this section. Also complete Sections 6.1 and 6.2 (Questions D6-1 through D6-6) for each wastewater t

that began operating at the plant on or after January 1, 2000. These pond/impoundment systems and wastewater treatment systems also include those planned to be under construction/installation by December 31, 2020. Enter the pond/impoundment system ID or wastewater treatment system ID in the 

pond/impoundment system IDs and wastewater treatment system IDs assigned in Table D-1 and Table D-2).Make a copy of Sections 6.1 and 6.2 for each pond/impoundment system and/or wastewater treatment system identified in Table D-1 and Table D-2 usbutton below. Just pressing this button once will generate copies of both tabs.

Table D-14. O&M Cost for the Pond/Impoundment System or Wastewater Treatment System for 2009

Note: Do NOT include corrective actions in the O&M costs for the ponds/impoundments in the system.Did any ponds/impoundments , including those that are part of a pond/impoundment system identified in Table D-1, and/or wastewater treatment systemoperating (or plan to begin operating) after January 1, 2000?

per hour (ave

rate of labo

per hour (ave

rate of labo

Yes

Copy Section 6.1 and 6.2

Yes

YesNo

D-35 
Steam Electric Questionnaire Part D. Pond/Impoundment Syste

Energy - Power for pumping $ $ per kWh Energy - Power for operations other than pumping $ $ per kWh Steam $ $ per pound Hazardous Sludge Disposal - Dredging $ $ per Hazardous Sludge Disposal - Landfilling $ $ per Nonhazardous Sludge Disposal - Dredging $ $ per Nonhazardous Sludge Disposal - Landfilling $ $ per Other:

$

Other:

$

Total O&M Cost (2009) $

CBI? D6-3. Provide cost data in Table D-15 only for those ponds/impoundments, within the pond/impoundment system identified in Table D-1, that began operating 

wastewater treatment systems, identified in Table D-2, that began operating at the plant on or after January 1, 2000. These ponds/impoundments and wretired/closed ponds/impoundments, planned ponds/impoundments, and planned wastewater treatment systems (including those under construction/insconstruction/installation by December 31, 2020). Additionally, include any costs incurred by the pond/impoundment system since January 1, 2000. For e

was installed in 1996, and one new pond was added in 2002, report the capital costs for the new pond only, and any capital costs (i.e., piping, pumps) insystem since 2000. 

Provide best engineering estimates when actual data are not readily available. For all costs, do not adjust for inflation. For example, if the plant incurred “Cost” column and enter “2002” in the “Year on which Cost is Based” column.NOTE: If no records are available on this wastewater treatment system, provide an explanation in the Comments page.

GallonTon

GallonTon

GallonTonGallonTon

Yes

D-36 
Steam Electric Questionnaire Part D. Pond/Impoundment Syste

Project

$$$$$

Total Direct Costs $Engineering Costs (includes process design and general engineering, 

cost engineering, consulting fees, supervision, inspection for each category below: a. Engineering Contract Firm Costs $

 b. Owner's Overhead Engineering Costs $

$$$

Total Indirect Costs $Total Capital Cost $Site preparation (includes site clearing, all demolition, grading, roads, 

walking areas, fences)

Cost 

Table D-15. Capital Cost for the Pond/Impoundment System or Wastewater Treatment System

Year on which Cost is 

Based

Purchased equipment installation (includes installation of all 

equipment; piping; instrumentation/calibration; electrical equipment; mechanical equipment; structural supports, insulation, and paint)Construction expenses (includes temporary construction offices, roads, communications, fencing; construction tools and equipment; permits, taxes, insurance)Other Contractor's Fees

Contingency actually expended (to compensate for unpredictable 

events such as storms, floods, strikes, price changes, errors in estimates, design changes, etc.)Indirect CostsDirect CostsPurchased equipment (includes all equipment for the installation or 

the upgrade: mechanical equipment; piping; instrumentation; electrical equipment; spare parts; freight charges; taxes; insurance; and duties) Land (includes property costs and survey fees)Buildings (buildings constructed to house pond/impoundment system 

and/or wastewater treatment system components, operator rooms, or other operations associated with the system; also includes plumbing, heating, ventilation, dust collection, air conditioning, lighting, telephones, intercoms, painting, sprinklers, fire alarms)

Hired outside engineering firm to oversee design and/or installation of the treatment system.

D-37 
Steam Electric Questionnaire Part D. Pond/Impoundment Syste

CBI? D6-4.

 (Skip to Question D6-5) (Continue)

CBI? D6-5.CBI? D6-6. If applicable, indicate whether the FGD wastewater treatment system, for which the plant provide capital cost data in Table D-15, was purchased as par

Are all components of the pond/impoundment system and/or wastewater treatment system included in the capital costs reported in Table D-15?Please explain what system components are included in the capital costs listed in Table D-15. Additionally, identify the key components of the pond/imptreatment system that are not included in the capital costs reported in Table D-15.

If applicable, indicate whether the FGD wastewater treatment system, for which the plant provided capital cost data in Table D-15, was a retrofit or was 

system was installed. 

FGD wastewater treatment system was a retrofitFGD wastewater treatment system was installed when the FGD scrubber system was installedNA

YesYes

FGD wastewater treatment system was purchased as part of the FGD scrubber packageFGD wastewater treatment system was not purchased as part of the FGD scrubber packageNA

Yes Yes

No

D-38 
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and Other W

Plant ID: Insert 

Plant Name: Insert 

Pond/Impoundment System ID or Wastewater Treatment System ID: Insert S

Part: D

Section Title:

 Instructions:

CBI? D6-7.

Examples of ancillary equipment:AeratorAgitatorChemical feed system (specify chemicals)Pump, sludge (specify purpose/location)Pump, wastewater (specify purpose/location)6.2. Pond/Impoundment System and Wastewater Treatment System Equipmen

Complete Section 6.2 (Question D6-7) for all ancillary pieces of equipment inclupond/impoundment or wastewater treatment system that contribute to the capiD-15.Note: This tab will copy with every copy made for the previous tab (Part D information is directly related.In Table D-16, list any ancillary pieces of equipment (i.e., equipment such as puincluded in the pond/impoundment system or wastewater treatment system tha

the capital costs provided in Table D-16 and provide the total number of pieces in the system. Refer to the examples of ancillary equipment shown below. 

Yes

D-39 
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and Other W

Ancillary Equipment (if applicable)

Number of Ancillary 

Equipment Pieces in the 

System

Pump, sludge (serving underflow 

from clarifiers) 2

Table D-16. Ancillary Equipment of the Pond/Impoundment 

System or Wastewater Treatment System

D-40 
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and Other W

D-41 
Steam Electric Questionnaire Part D. Pond/Impoundment System

Part: D

Section Title:

 Instructions:

Question 

Number

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

Comments

Cross reference your comments by question number and indicate the confidential status of your comment by checking t

(Confidential Business Information). Part D Comments

Yes

YesYesYes

YesYes

Yes

Yes

YesYes

Yes

Yes

D-42 
Steam Electric Questionnaire Part D. Pond/Impoundment System

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

Yes

Yes

Yes

YesYesYes

Yes

Yes

YesYesYes

Yes

D-43 
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and Other Was

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 

Steam Electric Questionnaire Code Tables

For Use as Effluents from Pon

and/or Wastewater Treatment S

Process Wastewaters

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 Throug

Treated Was
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and Other Was

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 Throug

Process Wastewaters Treated Was
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and Other Was

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 (give

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 disposaClarification, Primary - 2 CL-P-2 On-site landfill (as reported in 

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 Question

and F

Wastewater Treatment Units Destina

For Use in Tables and Questions Throughout Parts D and F.
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and Other Was

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 sluicFilter 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 Question

and F

Wastewater Treatment Units Destina
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and Other Was

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 

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

Blowdown in Par

Wastewater Treatment Units Solids Ha
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and Other Wastewater Treatment Operations

Part D Drop Downs

Process Wastewaters

Process Wastewaters

Select

Air heater cleaning water

Ash pile runoff

Boiler blowdown

Boiler fireside cleaning water

Boiler tube cleaning water

Bottom ash sluice

Carbon capture wastewater

Coal pile runoff

Combined ash sluice 

Combustion turbine cleaning (combustion gas portion of turbine) water

Combustion turbine cleaning (compressor portion of the turbine) water

Combustion turbine evaporative coolers blowdown

Cooling tower blowdown

FGD scrubber purge

FGD slurry blowdown

Filter Backwash

Floor drain wastewater

Flue gas mercury control system wastewater

Fly ash sluice 

General runoff

Gypsum pile runoff

Gypsum wash water

Ion exchange wastewater 

Landfill runoff - capped landfill

Landfill runoff - uncapped landfill

Leachate

Limestone pile runoff

Mill reject sluice

Once -through cooling water

Reverse osmosis reject water

SCR catalyst regeneration wastewater

SCR catalyst washing wastewater

Soot blowing wash water

Steam turbine cleaning water

Yard drain wastewater

Other

Treated Wastewaters

Treated Wastewaters

Select

Effluent - 1

Effluent - 2

Effluent - 3

Effluent - 4

Effluent - 5

Effluent - 6

Filter backwash

POND-1 Effluent

POND-2 Effluent

POND-3 Effluent

POND-4 Effluent

POND-5 Effluent

POND-6 Effluent

POND-7 Effluent

Approved: May 20, 2010
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and Other Wastewater Treatment Operations

POND-8 Effluent

POND-9 Effluent

POND-10 Effluent

POND-A Effluent

POND-B Effluent

POND-C Effluent

Sludge

WWT-1 Effluent

WWT-2 Effluent

WWT-3 Effluent

WWT-4 Effluent

WWT-5 Effluent

WWT-6 Effluent

WWT-A Effluent

WWT-B Effluent

WWT-C Effluent

Other

Process or Treated Wastewater (Influent Table D-3)

Process or Treated Wastewater (Influent Table D-3)

Select

Air heater cleaning water

Ash pile runoff

Boiler blowdown

Boiler fireside cleaning water

Boiler tube cleaning water

Bottom ash sluice

Carbon capture wastewater

Coal pile runoff

Combined ash sluice 

Combustion turbine cleaning (combustion gas portion of turbine) water

Combustion turbine cleaning (compressor portion of the turbine) water

Combustion turbine evaporative coolers blowdown

Cooling tower blowdown

FGD scrubber purge

FGD slurry blowdown

Filter Backwash

Floor drain wastewater

Flue gas mercury control system wastewater

Fly ash sluice 

General runoff

Gypsum pile runoff

Gypsum wash water

Ion exchange wastewater 

Landfill runoff - capped landfill

Landfill runoff - uncapped landfill

Leachate

Limestone pile runoff

Mill reject sluice

Once -through cooling water

Reverse osmosis reject water

SCR catalyst regeneration wastewater

SCR catalyst washing wastewater

Sludge

Soot blowing wash water

Steam turbine cleaning water

Yard drain wastewater

POND-1 Effluent

Approved: May 20, 2010
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and Other Wastewater Treatment Operations

POND-2 Effluent

POND-3 Effluent

POND-4 Effluent

POND-5 Effluent

POND-6 Effluent

POND-7 Effluent

POND-8 Effluent

POND-9 Effluent

POND-10 Effluent

POND-A Effluent

POND-B Effluent

POND-C Effluent

WWT-1 Effluent

WWT-2 Effluent

WWT-3 Effluent

WWT-4 Effluent

WWT-5 Effluent

WWT-6 Effluent

WWT-A Effluent

WWT-B Effluent

WWT-C Effluent

Other

Treated Wastewater (Effluents Table D-4)

Treated Wastewater (Effluents Table D-4)

Select

Effluent - 1

Effluent - 2

Effluent - 3

Effluent - 4

Effluent - 5

Effluent - 6

Filter backwash

Sludge

Other

Wastewater Treatment Units

Wastewater Treatment Units

Select

Adsorptive media

Aerobic Biological Reactor

Aerobic/Anaerobic Biological Reactor

Anaerobic Biological Reactor

Brine concentrator

Chemical Precipitation Reaction Tank 1 - 1

Chemical Precipitation Reaction Tank 1 - 2

Chemical Precipitation Reaction Tank 2 - 1

Chemical Precipitation Reaction Tank 2 - 2

Chemical Precipitation Reaction Tank 3 - 1

Chemical Precipitation Reaction Tank 3 - 2

Clarification, Primary - 1

Clarification, Primary - 2

Clarification, Secondary - 1

Clarification, Secondary - 2

Clarification, Tertiary - 1

Clarification, Tertiary - 2

Dryer

Constructed wetlands

Approved: May 20, 2010
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and Other Wastewater Treatment Operations

Equalization, Primary

Equalization, Secondary

Evaporator

Filter press - 1

Filter press - 2

Filter, Microfiltration - 1

Filter, Microfiltration - 2

Filter, Microfiltration - 3

Filter, Microfiltration - 4

Filter, Sand/Gravity - 1

Filter, Sand/Gravity - 2

Filter, Sand/Gravity - 3

Filter, Sand/Gravity - 4

Filter, Ultrafiltration - 1

Filter, Ultrafiltration - 2

Filter, Ultrafiltration - 3

Filter, Ultrafiltration - 4

Holding tank

Ion exchange 

Natural wetlands

pH adjustment - 1

pH adjustment - 2

pH adjustment - 3

Pond Unit - 1

Pond Unit - 2

Pond Unit - 3

Pond Unit - 4

Pond Unit - 5

Pond Unit - 6

Pond Unit - 7

Pond Unit - 8

Pond Unit - 9

Pond Unit - 10

Pond Unit - 11

Pond Unit - 12

Pond Unit - 13

Pond Unit - 14

Reverse osmosis

Settling tank - 1

Settling tank - 2

Settling tank - 3

Settling tank - 4

Settling tank - 5

Thickener - 1

Thickener - 2

Vacuum drum filter - 1

Vacuum drum filter - 2

Vacuum filter belt - 1

Vacuum filter belt - 2

NA

Other

Destinations

Destinations

Select

Burned on site

Deep-well injection

Discharge to POTW

Approved: May 20, 2010
Steam Electric Questionnaire Part D. Pond/Impoundment Systems and Other Wastewater Treatment Operations

Discharge to PrOTW

Discharge to surface water

Evaporation

Hauled off site for reuse (given away)

Hauled off site for reuse (marketed and sold)

Hauled off site for reuse (removal fee)

Hauled off site for disposal

Mixed with fly ash for disposal

On-site company owned landfill

POND-1 

POND-2 

POND-3

POND-4 

POND-5

POND-6 

POND-7 

POND-8 

POND-9

POND-10

POND-A 

POND-B 

POND-C 

Reuse as boiler water

Reuse as bottom ash sluice

Reuse as combined ash sluice

Reuse as FGD absorber makeup

Reuse as FGD slurry preparation water

Reuse as fly ash sluice

Reuse as mill reject sluice

Reuse in cooling towers

WWT-1 

WWT-2 

WWT-3

WWT-4 

WWT-5 

WWT-6 

WWT-A 

WWT-B 

WWT-C 

NA

Other

Units

Units

Select

μg/L

mg/L

Approved: May 20, 2010