## Development of Biological Treatment Maintenance Materials Factor

This excel file contains the following worksheets:

FGD_Cap_costs This excel workbook documents EPA's derivation of the factor used to estimate maintenance material costs associated with the biological treatment system. EPA obtained system level costs associated with General Electric's (GE) ABMet biological treatment system. These system level costs do not include costs associated with materials needed to perform routine maintenance activities. Maintenance material costs are included as part of the cost estimate to cover such expenses. EPA used data from plants reporting cost data for FGD wastewater treatment systems in the Steam Electric Survey

to estimate the these maintenance material costs as a percentage of the other operating and maintenance costs which include energy costs, chemical purchase costs, operating labor costs, and maintenance labor costs.

Output from the Steam Electric Survey Database for all responses to question D6-2 provided for FGD treatment systems. All treatment systems identified as FGD wastewater treatment systems are included in this worksheet. The costs associated with maintenance materials only

are included in this workbook. For these plants EPA compared the maintenance material cost to the total O&M cost reported by the plant to calculate the percentage associated with maintenance materials, this percentage is calculated in column AW. EPA used the average percentage (10%) and recalculated the percentage to reflect maintenance materials as a function of all O&M costs excluding maintenance materials. This results in an average value of 11% which is highlighted in yellow.**FGD_Wastewater_Treatment.plant_id plant_name**  3597Marshall Steam Station 8308Miami Fort Station 4547TransAlta Centralia Generation, LLC 3831RRI Energy Keystone Generating Station 7884Hatfield's Ferry Power Station 7884Hatfield's Ferry Power Station 5477Michigan South Central Power Agency 3146B L England 3146B L England 4543 Mountaineer Plant 904Muscatine Power and Water Generating Station 2269Bruce Mansfield Plant 2550Allen Steam Station 4122 PPL Brunner Island 4122 PPL Brunner Island 103W. H. Sammis Plant 5570Asheville Steam Electric Plant 4679Dominion - Chesterfield Power Station 4237Brandon Shores 4237Brandon Shores 6283 Pleasant Prairie Power Plant 6283 Pleasant Prairie Power Plant 2297Chalk Point Generating Station 1381EME Homer City Generation L.P. 2536JEA- St. Johns River Power Park 8353Jeffrey Energy Center 4702 Plant Crist 4861Kenneth C. Coleman Station 9671AES Cayuga LLC 9671AES Cayuga LLC 8661Belews Creek Steam Station 8661Belews Creek Steam Station 9225 Fort Martin Power Station 6377Tampa Electric - Big Bend Station 9805 PPL Montour 9805 PPL Montour2268Conemaugh 2268Conemaugh 5015 Dickerson Generating Station 7785Seminole Generating Station 7785Seminole Generating Station 7785Seminole Generating Station 5470Intermountain Power Project 14Gibson Generating Station 9161John E. Amos Plant 4533 Monroe Power Plant 6616Mirant Mid-Atlantic, LLC 3265Cardinal 1236Mitchell Plant 1402Conesville 3196Cayuga**cbi_FGD_wwts_tech FGD_wwts_tech_chemprecip**  **cbi_WWT_ID** [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] TRUE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] TRUE [Redacted] [Redacted] TRUE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] TRUE [Redacted] [Redacted] TRUE[Redacted] [Redacted] TRUE [Redacted] [Redacted] TRUE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] TRUE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] FALSE [Redacted] [Redacted] TRUE [Redacted] [Redacted] TRUE**WWT_Systems.System_ID Plant_Desig** 

WWT-1 FGD WWSRS and CWTS WWT-1 FGD Wastewater Treatment WWT-1 Boron Removal
WWT-1 FGD WWT WWT-1 FGD WWT WWT-2 Station Primary WWT WWT-1 WWTP WWT-1 Scrubber System WWT-2 Industrial Flows

[Redacted] [Redacted] WWT-1 Waste Water Treatment WWT-1 Little Blue Run WWT-1 FGD WWTS

[Redacted] [Redacted] [Redacted] [Redacted] WWT-1 FGD WWT WWT-1 FGD Treatment WWT-1 FGD WWT Plant WWT-1 Plant IWWT WWT-2 FGD WWT WWT-1 WPDES System WWT-2 FGD WWTS WWT-1 FGD WWTP WWT-1 WWT WWT-1 CWWTF WWT-1 FGD Blowdown Treatment System WWT-1 UIC Conditioning System WWT-1 WWT Clarifier & Multimedia Filters WWT-1 Process Water Reclamation Facility WWT-2 FGD Wasterwater Treatment System WWT-1 FGD WWTS WWT-2 Constructed Wetlands Treatment Sytem WWT-1 Plant WWT WWT-1 FGD Wastewater Treatment System

[Redacted] [Redacted] [Redacted] [Redacted][Redacted] [Redacted] [Redacted] [Redacted] WWT-1 FGD WWTP WWT-1 EPF Ponds WWT-2 Purgewaer Treatment WWT-3 Wastewater Treatment

[Redacted] [Redacted] WWT-1 WWT WWT-1 CPS WWTP WWT-1 FGD WWT WWT-1 FGD WWTP WWT-1 FGD CPS WWTP WWT-1 CPS WWTP

[Redacted] [Redacted] [Redacted] [Redacted]**Pond_WWT_OandM.plant_id Pond_WWT_OandM.System_ID**  3597WWT-1 8308WWT-1 4547WWT-1 3831WWT-1 7884WWT-1

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2550WWT-1 [Redacted] [Redacted] [Redacted] [Redacted] 103WWT-1 5570WWT-1 4679WWT-1

6283WWT-2 2297WWT-1 1381WWT-1 8353WWT-1 4702WWT-1 4861WWT-1

8661WWT-1 8661WWT-2 9225WWT-1 [Redacted] [Redacted] [Redacted] [Redacted][Redacted] [Redacted] [Redacted] [Redacted]

7785WWT-2 [Redacted] [Redacted] 14WWT-1 9161WWT-1 4533WWT-1 6616WWT-1 3265WWT-1 1236WWT-1 [Redacted] [Redacted] [Redacted] [Redacted]**cbi_Pond_WWT_OandM OM_Opr_Annual**  **OM_Opr_Rate_Hours** TRUE [Redacted] [Redacted] TRUE [Redacted] [Redacted] TRUE [Redacted] [Redacted]
TRUE [Redacted] [Redacted] FALSE 312833 55

TRUE [Redacted] [Redacted]

TRUE [Redacted] [Redacted] TRUE [Redacted] [Redacted] TRUE [Redacted] [Redacted] FALSE -555 -555 FALSE 46811.25 42.75 TRUE [Redacted] [Redacted]

TRUE [Redacted] [Redacted] FALSE -999 -999 TRUE [Redacted] [Redacted] FALSE -111 -999 FALSE -111 -999 TRUE [Redacted] [Redacted]

TRUE [Redacted] [Redacted] TRUE [Redacted] [Redacted] FALSE -111 -111 TRUE [Redacted] [Redacted]TRUE [Redacted] [Redacted]

TRUE [Redacted] [Redacted] TRUE [Redacted] [Redacted] FALSE -999 -999 FALSE -111 -111 TRUE [Redacted] [Redacted] TRUE [Redacted] [Redacted] TRUE [Redacted] [Redacted] TRUE [Redacted] [Redacted]**OM_Opr_Staffing_Workers OM_Opr_Staffing_hpd**  **OM_Opr_Staffing_dpy** [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] 1.3 24 184

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