Development of Chemical Precipitation Operation and Maintenance Costs:

Annual Plant WWTS Flows for Plants Operating Chemical Precipitation

This Excel workbook consists of the following worksheets:

kpk_016_WWT_System_flows_at_C

Not FGD WWT Systems

Not CP Systems

New Systems

Notes

Additional information regarding the query performed to extract pertinant information f

the Steam Electric Survey Database.

This Excel workbook document EPA's derivation of annual wastewater treatment flows in gallons per year for plants operating 

chemical precipitation treatment of flue gas desulfurization wastewater. These annual plant flows are used to calculate certain c

factors, for example cost factors for maintenance labor and maintenance materials (see DCN SE01825.A46 'CBI_Chem Precip 

Maintenance Labor and Materials.xlsx'). 

Documents the development of annual plant chemical precipitation wastewater treatm

flows, using certain plant responses to the Steam Electric Survey. To select plant 

responses used to develop the plant flows, EPA started by extracting capital costs for 

wastewater treatment systems for plants operating chemical precipitation systems (as 

marked in B7-4 or identified via further evaluation of plant responses). Next, EPA exc

from the dataset records for those wastewater treatment systems that do not treat FG

wastewater, and systems subsequently determined by EPA to not use chemical 

precipitation. Also documents development of the capacity factor used in the Steam 

Electric cost model.

Documents Steam Electric Survey data excluded from use in this analysis because th

data do not represent treatment of flue gas desulfurization wastewater.

Documents Steam Electric Survey data excluded from use in this analysis because th

data do not represent treatment of flue gas desulfurization wastewater using chemica

precipitation.

Documents identification of new FGD wastewater treatment systems excluded in 

developing the capacity factor used in the Steam Electric cost model.
ce Costs:

extract pertinant information from 

er year for plants operating 

re used to calculate certain cost 

1825.A46 'CBI_Chem Precip 

ecipitation wastewater treatment 

c Survey. To select plant 

by extracting capital costs for all 

ical precipitation systems (as 

t responses). Next, EPA excluded 

 systems that do not treat FGD 

PA to not use chemical 

ty factor used in the Steam 

se in this analysis because the 

n wastewater.

se in this analysis because the 

n wastewater using chemical 

ent systems excluded in 

 cost model.
All plant-level data has been removed from this tab as a result of CBI sanitization. All data for wastewater tr
ation. All data for wastewater treatment systems used to determine flow factors is considered CBI or CBI deducible.
nsidered CBI or CBI deducible.
All plant-level data has been removed from this tab as a result of CBI sanitization. All data for 

wastewater treatment systems determined to not treat FGD wastewater is considered CBI or CBI 

deducible.
All plant-level data has been removed from this tab as a result of CBI sanitization. All data for wastewater 

treatment systems determined to not be chemical precipitation systems is considered CBI or CBI deducible.
plant_id FGD_id cbi_FGD_WWT_tbl FGD_slds_handling FGD_gen_purge FGD_WWTS_old_new

1185 FGD-B FALSE TH-1,VFB-1 Yes Existing

1185 FGD-A FALSE TH-1,VFB-1 Yes Existing

1245 FGD-A FALSE TH-1 Yes Existing

1245 FGD-B FALSE TH-2 Yes Existing

1493 FGD-A FALSE HYC-1, VFB-1 Yes Existing

1957 FGD-A FALSE -999 Yes Existing

3265 FGD-A FALSE HYC-4, VFB-4 Yes Existing

3709 FGD-A FALSE HYC-1, VFB-1&2 Yes Existing

3709 FGD-B FALSE HYC-2, VFB-1&2 Yes Existing

3719 FGD-B FALSE VF-1 Yes Existing

3719 FGD-A FALSE VF-1 Yes Existing

4533 FGD-B FALSE HYC-2, VFB-2 Yes Existing

4533 FGD-A FALSE HYC-1, VFB-1 Yes Existing

4679 FGD-A FALSE FP-1 Yes Existing

5762 FGD-B FALSE see comments Yes Existing

5762 FGD-A FALSE see comments Yes Existing

6370 FGD-A FALSE Gypsum Stacking Yes Existing

8013 FGD-B FALSE HYC-2, VF-1,VF-2 Yes Existing

8013 FGD-A FALSE HYC-1, VF-1,VF-2 Yes Existing

8065 FGD-A FALSE -999 Yes Existing

8179 FGD-D FALSE Gypsum Wet Stack Yes Existing

8179 FGD-C FALSE Gypsum Wet Stack Yes Existing

8179 FGD-B FALSE Gypsum Wet Stack Yes Existing

8179 FGD-A FALSE Gypsum Wet Stack Yes Existing

9161 FGD-A FALSE

HYC-1, HYC-2, HYC-3, VFB-1, VFB-2, 

VFB-3 Yes Existing

9166 FGD-A FALSE -111 Yes Existing

9971 FGD-A FALSE HYC-1, VF-1 Yes Existing
FGD_WWTS FGD_WWT_max FGD_WWT_24avg FGD_WWT_date_online

Pond-1 100 83 7-2011

Pond-1 100 83 7-2011

SPD-1 60 50 01/2013

SPD-1 60 50 01/2012

SPD-1, SW 85 79 04/2011

-999 -999 -999 -999

EQ-P, CP-1-1, CP-1-2, CL-P-1, CL-P-2, CL-S-1, CLS-2, CP-2-1, CP-2-2, PH-1 630 630 01/2012

EQ-P, CP-1-1, CL-P-1, CL-P-2, EQ-S, CP-2-1, CP-3-

1, CP-4-1, CL-S-1, CL-S-2, FLT-S-1, FLT-S-2, HT, 

PH-1 354 240 01/2012

EQ-P, CP-1-1, CL-P-1, CL-P-2, EQ-S, CP-2-1, CP-3-

1, CP-4-1, CL-S-1, CL-S-2, FLT-S-1, FLT-S-2, HT, 

PH-1 354 240 05/2012

MFA 2000 750 6/2013

MFA 2000 750 6/2013

EQ-s,CP1-1, CP2-1, CLP-1, FLTS-1 60 40 2014

EQ-s,CP1-1, CP2-1, CLP-1, FLTS-1 60 40 2014

CL-P-1, EQ-P, CP-1-1, CP-2-1, EQ-S 300 75 05/2011

SPD-4 1100 850 12/2013

SPD-4 350 260 12/2014

SPD-2 350 260 12/2014

SPD-3 17.5 17.5 03/2011

SPD-3 17.5 17.5 03/2011

-999 -999 -999 -999

SPD-1 6.5 6.2 05/2012

SPD-1 6.5 6.2 01/2011

SPD-1 6.5 6.2 05/2013

SPD-1 6.5 6.2 01/2014

EQ-P, CP-1-1, CP-1-2, CL-P-1, CL-P-2, CL-S-1, CLS-2, CP-2-1, CP-2-2, PH-1 -111 807 01/2011

POND-1, POND-A 400 400 4/2011

VF-1,HT,ST 100 50 06/2011
Notes

Contains data from the following survey questions:

A1-1 Plant Name

B7-4 FGD purge wastewater treatment

D5-3 WWT system definition

Purpose: Lists flow rates for all WWT systems at plants that have CP systems 

(as marked in B7-4 and based on evaluation of systems that did not mark CP in 

B7-4). Note: while only plants with CP systems are included, some of these 

plants have multiple treatment systems, including non-CP systems. All of the 

systems (including non-CP systems) are included.