Response to EPA CWA 308 and RCRA 3007 Information Request

Progress Energy Carolinas, Inc.

Asheville Steam Electric Plant

August 2010 Page 1 of 15 (1) Identify the name, address, telephone number, and location of the current legal owner(s) and

operator(s) of Progress Energy Carolina, Inc., As heville Steam Electric Plant, as well as the name,

address, telephone number, and location of its parent company.

Legal owner and operator:

Carolina Power & Light Company

d/b/a Progress Energy Carolinas, Inc.

Asheville Steam Electric Plant

200 CP and L Drive

Arden, NC 28704

(828) 687-5201

Parent Company:

Progress Energy, Inc.

410 South Wilmington Street

Raleigh, NC 27601 Plant Location:

Skyland, Buncombe County, NC

Source of Responses:

Fred Holt

Supervisor, Environmental Services

410 S. Wilmington Street, PEB4A

Raleigh, North Carolina 27601

(919) 546-5286 – phone

(919) 546-4409 – fax

Fred.Holt@pgnmail.com

(2) On a Topographic map, using the most recent USGS 71⁄2 minute or 15 minute topographic quadrangle

map, show the location of the facility boundaries, as well as surface water flows, including tributaries,

streams, rivers, lakes, ponds, and wetlands within the facility boundaries and that cross into or are

adjacent to the facility boundaries.

See Figure 1 for the USGS topographic map, showing the approximate Asheville Facility boundary

and nearby surface water flows.

(3) List and label each area at the facility that the company uses or has used to collect, store, treat, or

dispose of fly ash, bottom ash, slag, combined fly and bottom ash, flue gas desulfurization sludge, codisposed and co-managed ash and coal refuse, solid waste, hazardous waste, as well as wastewater,

including process wastewater, waste slurry or sludge, cooling water, storm water runoff, and sanitary

wastewater, on an episodic or routine basis (“managem ent areas”). For each of these areas, describe

its function in managing waste or wastewater. Management areas include, but are not limited to,

underground mines, underground injection wells, landfills, tanks, ponds, lagoons, basins, storm

drains, pipes, and surface impoundments.

Descriptions of the management areas, as defined in question 3, are provided in Table 1

.

References:

1. 2005 NPDES Permit Application ( Appendix A )

2. 2010 NPDES Permit Application ( Appendix B )

3. Ash pond storage volume documents ( Appendix C )

(4) For each management area, identify its location and boundaries on the map provided in response to

request #2.

See Figures 2 and 4 for location of “management areas” fo r waste and wastewater. For clarity,

Figure 4 is provided on a USGS topographical map and on an aerial, as Figure 4A.

(5) For each management area, describe the area’s approximate storage capacity, the volume of waste or

wastewater currently stored, and the approximate proportion of free liquid and settled solids within

the stored wastewater. Explain how the company calculated these volumes.

Approximations of the storage capacities, propor tion of free liquid and settled solids, as well as

references for these approximations for each management area may be found in Table 1 . The

proportions of free liquid and settled solids are not applicable for some management areas.Response to EPA CWA 308 and RCRA 3007 Information Request Progress Energy Carolinas, Inc.

Asheville Steam Electric Plant

Page 2 of 15 (6) Provide the name of any entity with whom you have contracted for the disposal, sale, or

reuse/recycling of coal combustion waste generated from your facility for the past five (5) years.

Identify the type and amount of coal combustion waste that the company disposed of through such

contracts each year for the past five (5) years.

Counterparties contracted with:

Buzzi Unicem USA/Signal Mountain

Charah, Inc.

PQ Corporation

Roanoke Cement Company, LLC

Synthetic Materials

United States Gypsum Company

Volumes sold, reused, or disposed of:

Year FGD WWTS Filter

Cake (tons) Ash

(wet tons) Gypsum

(wet tons)

2005 0 7,214 0

2006 451 292 39,881

2007 955 14,360 53,706

2008 12,27 183,936 57,077

2009 1,115 487,638 44,976

Filter cake from FGD wastewater treatment is sent to a landfill in South Carolina (Republic Services –

Union County Regional Landfill).

(7) Identify all the waste streams generated at the facility in the past five (5) years. Referring to the labels

provided for each management area, provide a flow diagram showing each waste stream from the

source of generation to its final disposition. In the flow diagram, include the following information:

(a) descriptions of the waste streams (including but not limited to, fly ash, bottom ash and slag,

combined fly and bottom ash, flue gas desulfurization sludge, co-disposed and co-managed ash and

coal refuse) and their chemical characterizations; (b) the daily and annual volume of each waste

stream flow; and (c) the final disposition of the waste streams, includin g recycled or otherwise

destined for beneficial use.

A summary of the waste streams is shown in Tables 2 and 3 , including a description of their final

disposition and daily and annual volumes produced.

A flow diagram of the wastewater streams and the es timated daily flow rates of the waste streams are

provided in Appendix D , as described in the 2010 NPDES permit application. A flow diagram of

waste streams other than wastewater is also provided in Appendix D.

Chemical compositions of the wastewater streams have been determined post-treatment, at the

discharge to surface waters (Outfalls 001, 002, an d SW-3). Analyses of the individual waste and

wastewater streams contributing to th e outfalls have not been conducted. The 2005 and 2010 NPDES

permit applications (Appendices A and B) includes chemical composition data of these discharges, in

forms 2C and 2F. Additionally, the facility ’s Discharge Monitoring Reports data ( Appendix E )

includes analysis of Internal Outfall 005 (the treated FGD wet scrubber wastewat er) as well as Outfalls

001 and 002. Chemical composition of the coal ash is provided to the North Carolina Department of

Environment and Natural Resources (N CDENR) on an annual basis; analyses for the past 5 years are

included in Appendix F . Additionally, analyses of the filter cake from FGD wastewater treatment

system (WWTS) and gypsum are provided in Appendices G and H

.

(8) Provide any testing and analyses relied on to determ ine the characterization of the waste streams, as

well as any sampling results of the waste streams obtained by the facility for the past five (5) years.

For any sampling results provided, include a description of the sampling procedures used.Response to EPA CWA 308 and RCRA 3007 Information Request Progress Energy Carolinas, Inc.

Asheville Steam Electric Plant

Page 3 of 15 Analyses of all the individual wastewater streams c ontributing to the outfalls have not been conducted.

The 2005 and 2010 NPDES permit application (Appe ndices A and B) includes all available chemical

characterization data of these discharges, in forms 2C and 2F, as indicated in question 7. Sampling

procedures for wastewaters include grab samp les, pump logs, records, and instantaneous

measurements.

Appendices F, G, and H contain anal yses conducted of coal ash, f ilter cake from th e FGD WWTS, and

gypsum shipped off-site. Sample procedures for these include obtaining grab samples by Progress

Energy facility personnel.

(9) Describe any wastewater discharges, including overflows, diversions, or other releases, that occur or

have occurred within the last ten (10) years from the management areas to surface waters, including

tributaries, streams, rivers, lakes, ponds, and wetland s. Identify the discharge points and runoff paths

on the map provided in response to request #2. Provide any analytical data or monitoring results from

the last five (5) years that demonstrate hazardous co nstituents in the wastewater discharges from the

management areas to surface waters. Identify the management plans and treatment technologies that

the company implements to control its wastewater discharges. Provide a copy of the National

Pollutant Discharge Elimination System (“NPDES”) permit that authorizes these wastewater

discharges. If the company has not obtained permit coverage, provide an explanation for this lack of

coverage. Submit any discharge monitoring reports in which the company reported wastewater

violations from the last five (5) years.

The Asheville Plant is authorized to discharge from Outfalls 001 and 002, Internal Outfalls 004 and

005, and six stormwater discharges, described below. No overflows, diversions, or other releases not

otherwise allowed by the permit have occurred in the past 10 years. Allowed alternate flow paths are

described below and in the flow diagrams provided in response to Question 7. Outfall locations are

shown on Figure 1

.

Outfall 001 - Discharge from Ash Pond to French Broad River

The Plant's ash pond (referred to as the 1982 ash pond), is located east of the French Broad River,

south of the plant and discharges into the French Broad River. The ash pond receives ash sluice water

from fly ash and bottom ash systems including selective catalytic reduction (SCR) system ammonia

slip (discharge began in spring 2000), various low volume wastes (including water treatment wastes,

boiler blowdown, plant drains, ash hopper seal water, air preheater cleaning wastes, and FGD

blowdown [Internal Outfall 005]), coal pile runoff, limestone pile runoff, gypsum loading area runoff,

fire protection system drainage, and chemical metal cleaning wastes (if not evap orated; Internal Outfall

004), stormwater (from the plant area, parking lots, combustion turb ine area, oil stor age and handling

facility, and substations) and other waters (such as turbine blade wash water, inlet filter cooling water,

condensate water, and water from equipment and tank drains) from the Combustion Turbine Facility

on the Plant's site. Wastewater from the plant's truc k wash and weigh stations also are directed to the

plant's 1982 Ash Pond.

Coal dust suppression is achieved by spraying a prop rietary chemical on coal at different stages of coal

use. Small amounts of excess dust suppression chemical have the potential to be discharged to the

1982 ash pond via plant drains or coal pile runoff. Accumulated water within the boundaries of the old

ash pond (referred to as the 1964 ash pond) may also from time to time be transferred to the 1982 pond

Water leaves the 1982 ash pond via a standpipe with skimmer and flows by pipe and lined ditch to a

secondary stilling basin, where it is discharged by ove rflow weir to an effluent channel that coveys it to

the French Broad River. Both the ash pond and the stilling basin provide treatment by equalization,

sedimentation and neutralization to the above-referenced individual waste streams. Additionally, both

ponds have oil absorbent/containment booms permanently deployed for added protection. Seepage

from both the 1982 pond and the 1964 pond drains directly to the French Broad River. Other seepage

from the 1964 pond drains to the settling basin and is discharged via Outfall 001.Response to EPA CWA 308 and RCRA 3007 Information Request Progress Energy Carolinas, Inc.

Asheville Steam Electric Plant

Page 4 of 15 Alum is added as needed to the ash sluice water to aid settling. Boiler water is treated with ammonia,

hydrazine, and sodium hydroxide. Sodium hydroxide is used as needed to maintain ash pond pH.

There is no formal management plan for this discharge.

Outfall 002 - Discharge of Once-Thro ugh Cooling Water to Lake Julian

Once-through cooling water is used to supply cooling water for the steam condensers. The component

cooling water system flows combine with unit 1 and 2 condenser flows prior to discharge to Lake

Julian, a re-circulating, man-made cooling water reservoir. There is no formal management plan for

this discharge.

Internal Outfall 004 – Chemical metal cleaning wastewater to Outfall 001

This waste stream may occasionally be discharged vi a Internal Outfa ll 004 to the ash pond treatment

system or to the old ash pond (with prior approval ). Generally chemical metal cleaning wastes are

treated by evaporation in boilers. There is no formal management plan for this discharge.

Internal Outfall 005 – Flue Gas Desulfurization wet scrubber wastewater treatment system to

Outfall 001

FGD wastewater is pretreated by chemical additio n and clarification for solids removal, redundant

filter presses and pH control using acid and caustic metering systems. Pre-treated FGD blowdown is

mixed with dilution water to lower the chloride concen tration and temperature prior to being sent to the

constructed wetlands treatment system (CWTS). The CWTS consists of a Bulrush area, a rock filter,

and a cattail area and discharged via Internal Outfall 005 thence to Outfall 001. This discharge began

in approximately November 2005. An Operations and Maintenance Manual is used as the primary

management plan for the FGD wastewater treatment system (see Appendix I ).

Stormwater Outfalls

Stormwater from the facility access roads used to tr ansport coal, oil and gypsum is discharged via

Outfalls SW-1, SW-2, SW-3, SW-4 and SW-6 to Lake Julian. Outfall SW-5 drains to an unnamed

tributary to Powell Creek. Outfalls SW-1, SW-2, and SW-6 utilize gra ssed swales for treatment. Other

outfalls are discharged via riprap ditches or directly through culverts.

The NPDES permit No. NC0000396 is attached in Appendix J

.

Available analytical data for hazar dous constituents (as defined at 40 CFR 261, Appendix VIII) for the

wastewater discharges are provided in the 2005 and 2010 NPDES renewal applications ( Appendices A

and B ) and the Discharge Monitoring Reports ( Appendix E ). One exceedance of the NPDES permit

limitations occurred in June 2007 for mercury (see Appendix E ).

References:

1. 2005 NPDES Permit Application ( Appendix A )

2. 2010 NPDES Permit Application ( Appendix B )

(10) For all stormwater discharges associated with industrial activity from the facility, as defined at 40

C.F.R. § 122.26(a)(14), identify the industrial activity (including the appropriate NAICS and SIC

codes) that requires coverage under an NPDES permit. In addition to the information provided about

these discharges in response to request #9, provide a copy of the facility’s current Stormwater

Pollution Prevention Plan (“SWPPP”), as well as co pies of its comprehensive site evaluations,

inspection records, and mon itoring results for the last five (5) yea rs. If the company has not developed

a SWPPP, provide an explanation for this decision.

Stormwater discharges (SW-1, SW-2, SW-3, SW-4, SW-5, and SW-6) ar e associated with the new and

old access roads and the rail line used to transport materials, including bulk chemicals, petroleum

products, coal, and limestone, gypsum and ash materials. The industrial activity that requires coverage

under the Clean Water Act is Electric Power Generation, Fossil Fuel, NAICS code 221112; and

Electric Power Generation by Fossil Fuels, SIC code 4911. The Stormwater Pollution Prevention PlanResponse to EPA CWA 308 and RCRA 3007 Information Request Progress Energy Carolinas, Inc.

Asheville Steam Electric Plant

Page 5 of 15 (SWPPP) is included as Appendix K to this response. Attachment 5 to the SWPPP includes

certificates for annual in spection of non-stormwater discharges. Attachment 6 to the SWPPP includes

records of Qualitative Monitoring inspections for stor mwater discharges since 2004. Attachment 7 to

the SWPPP includes records of seco ndary containment inspections.

(11) Describe any groundwater monitoring system in place at the facility. Provide any groundwater

sampling and analysis plans, groundwater monitoring results that detected releases of hazardous

constituents, and corrective actions taken in response to groundwater contamination. Identify the

location of groundwater monitoring wells, both active and inactive, on the map provided in response

to request #2.

Groundwater monitoring at the Asheville Steam Plant has been conducted in the vicinity of the 1964

and 1982 Ash ponds since 2006. The PZ-series wells (as shown in Figure 3) were installed in 2006 as

part of a Monofill (Ash) Siting Study. Additional monitoring wells (GW-series) were installed in 2007

(see Figure 3) as part of the voluntary monitoring effort conducted under the Utility Solid Waste

Activities Group (USWAG). The GW -series wells and PZ-19 and PZ-22 have been sampled on a

semi-annual basis since installation, and analytical results are summarized in Appendix L

. Groundwater sampling and analysis is conducted by a subcontractor (Pace Analytical Labs) and results

are provided to NCDENR on a semi-annual basis. A generalized water level map, well construction

records, and analytical re sults are also provided in Appendix L

.

(12) Describe any known spills or releases to groundwater from each management area within the last ten

(10) years.

No spills or releases to groundwater are known to have occurred in the last ten years from the

management areas. Groundwater quality results fr om the monitoring system around the active and

inactive ash pond (provided in question 11) show slightly elevated concentrations of some inorganic

constituents. However, note that these results are from inside the compliance boundary as defined by

the North Carolina 2L Groundwater standards. Progre ss Energy is in the process of siting background

wells and wells located at the compliance boundary so that an analysis can be completed to determine

if a statistically significant release has occurred.

(13) For each management area, identify any seepage flows as well as their origins, flow paths, and

destinations. Indicate the location of these flows on the map provided in response to request #2.

Provide any reports or documentation with sampling results and/or information about the volumes of

these seepage flows from the last five (5) years

1964 Ash Pond

Shoulder drains extend along a berm on the slope of the original earthen dam. Any seepage from this

area joins seepage from the area of the blanket dr ains described below. Flows have not been

documented other than qualitatively. Specific flow path of the flow is not documented but it is

expected to flow down gradient to join with the blanket drain flows.

Seepage and/or spring activity has been observed in a location along the downstream side of the

embankment about 100 feet north of the outlet structur e. This seepage appears to be located near the

exit of the drainage blanket along the juncture of the old and newer embankments. Flow volume of the

seepage was estimated at 5 to 10 gpm in 2007. Specific flow path of the flow is not documented but it

is expected to flow down gradient into the stilling basin and then toward the French Broad River.

Other seepage and/or spring activity is observed at the downstream toe north of the activity described

above.

There is a discharge from a drai npipe located near the downstream end of the flume which conveys

discharge from the 1982 Ash Pond to the NPDES monitoring point at the toe of the 1964 Ash Pond

Dam. This drainpipe is believed to be the outlet for a drain installed beneath the concrete flume.

Specific flow path of the seepage is not documented but it is expected to flow down gradient toward

the French Broad River.Response to EPA CWA 308 and RCRA 3007 Information Request Progress Energy Carolinas, Inc.

Asheville Steam Electric Plant

Page 6 of 15 Locations and direction are depicted on Figure 2

1982 Ash Pond

An internal blanket drain connected to toe-drainage piping along the downstream side of the dam

provides seepage control. This drainage enters tw o adjacent seepage flow monitoring weirs which are

located at the toe at the highest section of the dam. Flow of the seepage is measured monthly via these

weirs. Measurements from the last 5 years are attached in Appendix M . Seepage from these toe drains

flows to the French Broad River. The location of th e measurement weirs and di rection of drainage are

shown in Figure 2

.

Natural seepage occurs through th e embankment toe on the east abutment . The seepage at this location

is observed but no flow volumes have been recorded. Specific flow path of the seepage at this location

is expected to flow down gradient toward the French Broad River. The location of this seepage

condition is shown on in Figure 2

.

References:

1. MACTEC, November 26, 2007 “Five-Year Independ ent Consultant Inspection Report, Asheville

Steam Electric Plant, Cooling Lake Dam and As h Pond Dams”, Skyland, North Carolina.

(Attachment to OSWER response document)

2. S&ME, Inc. April 5, 2010 “Subsurface Investig ation and Slope Stability Analysis of 1964 Ash

Basin Dike”, Progress Energy – Asheville Plant report ( Appendix N ).

3. Plant Knowledge

(14) Provide any hydrological studies conducted at the facility within the last five (5) years.

No hydrological studies were cond uced at the Asheville Steam Plant within the last five years.

(15) Identify any known drinking water wells within a five (5) mile radius of the facility’s outer boundaries.

Provide any monitoring or sampling results that demonstrate hazardous constituents present within

these wells.

Potable water for the facility is provided by the City of Asheville. Progress Energy is not aware of

drinking water wells in the vicinity of the Asheville Steam Plant.

(16) Describe the cooling system at the facility. If applicable, submit the source of the water withdrawn

and the amount of water withdrawn in gallons per day. If applicable, describe the cooling water

intake screen backwash system and identify the individual backwash flows, the volume, and the

discharge points for each flow. Submit any sampling results of the backwash.

The cooling system at the Ashville Steam Electric Plant is a once-through system with an estimated

average water intake of 256.59 million gallons per day (MGD) of which 255.1 MGD is routed to the

Unit 1 and 2 condensers. The maximum condenser flows for Units 1 and 2 are 150 MGD and 156

MGD, respectively. The source of cooling water is Lake Julian, located northeast of the facility. The

cooling system does not include a conventional intake screen but does have a bar screen and a coarse

mesh fixed screen (chicken wire). There is no backwash system.

(17) Provide analyses performed on slope stability, inflow design floods, or dam breaks for any of the

management areas within the last five (5) years.

1964 Ash Pond

Slope stability analyses were conducted as described in Subsurface Investigation and Slope Stability

Analysis of 1964 Ash Basin Dike , Progress Energy – Asheville Plant report, provided in Appendix N.

1982 Ash Pond

Slope stability analyses were conducted in 2007 as documented in the report 5-Year IndependentResponse to EPA CWA 308 and RCRA 3007 Information Request Progress Energy Carolinas, Inc.

Asheville Steam Electric Plant

Page 7 of 15 Consultant Inspection of the Cooling Lake Dam and Ash Pond . The stability model diagrams are

included in Appendix O of this response. The complete report was submitted in response to the

previous OSWER request.

Inundation Design Floods

Maps documenting the potential inundation areas are provided in Appendix P.

References:

1. MACTEC, November 26, 2007 “Five-Year Independ ent Consultant Inspection Report, Asheville

Steam Electric Plant, Cooling Lake Dam and As h Pond Dams”, Skyland, North Carolina.

(Attachment to OSWER response document and Appendix O for stability model diagrams)

2. S&ME, Inc. April 5, 2010 “Subsurface Investig ation and Slope Stability Analysis of 1964 Ash

Basin Dike”, Progress Energy – Asheville Plant report ( Appendix N ).Response to EPA CWA 308 and RCRA 3007 Information Request Progress Energy Carolinas, Inc.Asheville Steam Electric PlantPage 8 of 15Table 1. Waste and Wastewater “Management Areas”No.onMapWaste andWastewaterManagement AreaManagement Area Description/ FunctionStorageCapacityVolume ofWasteCurrentlyStoredAdditionalInformation/Comments11Old Ash Pond (alsoknown as the ’64Pond)Materials currently stored in the inactive ash pond include flyash, bottom ash, boiler slag, flue gas emissions control residualsin the constructed wetlands and stormwater. The duck pond (thefree water area on the surface of the ’64 Pond) receivesstormwater from nine storm drains from within the 230kVswitchyard located near the center of the plant property, as wellas water from two storm drainsfrom the wastewater treatmentbuilding yard, and one from thearea between the rail car storageand the 230kV switchyard. Sludge from various catch basinsand sumps collected during maintenance activities are permittedto be stored in the ’64 Pond but typically are placed in the ’82Pond. The duck pond allows received stormwater to evaporateand does not discharge tosurface waters under normalconditions.1,380 acre-ft1098 acre-ft(estimated)Storage capacity derived from thejob description summary sheet andcalculation inAppendix C. Theremaining pond area typically doesnot store free water with theexception of the “duck pond”,which comprises approximately3% of the total storage capacity,estimated from an assumed 3.1acre surface area and assumed 15foot of depth.2Current Ash Pond(also known as the’82 Pond) [NPDESOutfall 001]Materials currently stored in the pond include fly ash, bottomash, and boiler slag. Also receives ash sluice water, coal pilerunoff, stormwater runoff, intermittent chemical metal cleaningwastewater(if not evaporated),and various low volume wastes(boiler blowdown, backwash from the water treatmentprocesses, ash hopper seal water, plant drains, air preheatercleaning water). The ’82 pondprovides equalization andneutralization and allows solids to settle prior to water dischargeto the French Broad River. During maintenance, sludge fromcatch basins and sumps from the following sources may bedisposed of in the 1982 pond: from coal, limestone, and gypsumpiles, stormwater drainage system, and low volume wastes. Intimes of excessive rain events, water from the duck pond in the’64 ash pond may be transferred to the ’82 pond to avoidoverflows.~1,400 acre-ft 1,260 acre-ftStorage capacity and volumecurrently stored were provided inthe OSWER response letter, whichrelied upon the MACTEC analysissheet inAppendix C.Approximately 10% of thecapacity is free liquid.Response to EPA CWA 308 and RCRA 3007 Information Request Progress Energy Carolinas, Inc.Asheville Steam Electric PlantPage 9 of 15Table 1. Waste and Wastewater “Management Areas”, continuedNo.onMapWaste andWastewaterManagement AreaManagement Area Description/ FunctionStorageCapacityVolume ofWasteCurrentlyStoredAdditionalInformation/Comments13 Ash sluice pipesTransfers ash from the facility to the ash pond.No permanentstoragecapacityTransfer pipe;not used forstorage4Gypsum storagedomeLocated adjacent to the FGDsystem and is capable oftemporarily storing gypsum prior to sale and off-site shipment.4,700 tonsgypsumNegligible;continuouslyshipped offsiteGypsum analyses indicate gypsumbyproduct is approximately 20%moisture.5FGD wastewatertreatment system(WWTS)Receives wastewater from the flue gas desulfurization (FGD)absorbers’ blowdown. The treatment system includes influentequalization with chemical feed, clarifier for solids removal,effluent equalization with chemical feed, equalization & coolingprior to wetlands. Pretreated FGD blowdown is mixed withdilution water to lower the chloride concentration andtemperature prior to being sent to the constructed wetlands.73 gpm(design)WWTS is notused forstorage;system iscontinuousflow through.Design Inlet flow is basis ofcalculation. TSS of this wastestream is < 26,000 mg/L; outlet200 mg/L, therefore the stream is<2% solids. Clarifier sludge isshipped off-site for disposal.6Constructedwetlands treatmentsystem (CWTS)[NPDES InternalOutfall 005]Receives pre-treated FGD blowdown. The constructed wetlandsconsist of equalization basins, a Bulrush area, a rock filter, and acattail area, and are designed to remove selenium and mercuryfrom the FGD blowdown. The CWTS is located within the ’64Pond.Approximately750,000 cubicfeetCWTS is notused forstorage;system iscontinuousflow through.Capacity is estimated from500,000 surface area with a designdepth of 1 to 1.5 feet for wetlandplants.7Hot Pond[NPDES Outfall002]Cooling water from once-through cooling system (~255 MGD)is sent to the pond prior to discharge to Lake Julian throughOutfall 002.45 acre-feet 42 acre footCapacity estimated based onapproximate 3acre surface area andassumed 15 foot of depth. Onefoot of freeboard is assumed for ofwastewater. No significant solidscontent anticipated.Response to EPA CWA 308 and RCRA 3007 Information Request Progress Energy Carolinas, Inc.Asheville Steam Electric PlantPage 10 of 15Table 1. Waste and Wastewater “Management Areas”, continuedNo.onMapWaste andWastewaterManagement AreaManagement Area Description/ FunctionStorageCapacityVolume ofWasteCurrentlyStoredAdditionalInformation/Comments18Storm drainage toash pondCollect stormwater within the plant footprint from storm drains(with the exception of those noted in this table) and direct to theash pond.No permanentstoragecapacityStormwaterdrainagesystem is notused forstorage;system iscontinuousflow through.No significant solids content.9Administrationbuilding stormdrainageCollect stormwater from the Administration building parking lotonly and direct it to Lake Julian.No permanentstoragecapacityStormwaterdrainagesystem is notused forstorage;system iscontinuousflow through.No significant solids content.10Sanitary sewerpipelinesCollect and transfer sanitary sewer wastewater to the City ofAsheville’s Metropolitan Sewage District System.No permanentstoragecapacityTransfer pipe;not used forstorageEstimated location.11Boiler CleaningWaste BasinBasin has not been used for approx. 25 years and has been filledin and built over.Not applicable,basin filled in.Not applicable,basin filled in.1.Per request #5, the additional information includes the approximate proportion of free liquid and settled solids in stored wastewater and an explanation of howthese volumes were determined.Response to EPA CWA 308 and RCRA 3007 Information Request Progress Energy Carolinas, Inc.Asheville Steam Electric PlantPage 11 of 15Table 2. Waste Streams Generated at the Asheville Steam Electric Plant in the Past Five YearsResponse to Question 7Waste Stream DescriptionFinal Disposition of Waste StreamDaily flow(MGD)Annualflow(3)(MG/yr)Wastewater(1)Potable and sanitary wastewater City of Asheville’s Metropolitan Sewage District System. 0.002 0.47Low Volume Waste: -- -Ash Hopper Seals Outfall 001 - French Broad River(5)0.05 11.86Boiler Blowdown Outfall 001 - French Broad River(5)0.006 1.42Truck Wash Outfall 001 - French Broad River(5)Variable VariableWater purification process waste Outfall 001 - French Broad River(5)Variable VariableAir Preheater Cleaning Outfall 001 - French Broad River(5)0.02 4.75FGD Blowdown Outfall 005 thence to Outfall 001 - French Broad River 0.376 89.2Ash Sluice Water Outfall 001 - French Broad River(5)3.03 718.87Coal Pile Runoff Outfall 001 - French Broad River(5)0.01 3.65Storm WaterOutfalls SW- 1,2,3,4,6 which flow to Lake Julian; andOutfall SW-5 – Tributary to Powell Creek0.07 0.621Chemical Metal Cleaning WastesEvaporation in boilers or discharge via Internal Outfall 004 thence toOutfall 001 – French Broad River(5)0 0Water from Combustion Turbine Facility (bladewashing)(6)Outfall 001 - French Broad River(5)0.02 0.08Fire Protection Water Outfall 001 - French Broad River(5)0.01 2.37Emergency Fire Protection Water Outfall 001 - French Broad River(5)0 0Cooling Water Discharge Outfall 002 - Lake Julian 255.1 60,522Seepage from’82 ash pond French Broad River 0.09 UnknownSeepage from ’64 ash pond French Broad River 5 to 10 gpm UnknownResponse to EPA CWA 308 and RCRA 3007 Information Request Progress Energy Carolinas, Inc.Asheville Steam Electric PlantPage 12 of 15Table 2. Waste Streams Generated at the Asheville Steam Electric Plant in the PastFive Years, continuedWaste Stream DescriptionFinal Disposition of Waste StreamDailyProduction(4)(tpd)AnnualProduction(4)(tons/yr)Solid Waste(2)Bottom Ash ’82 Ash Pond for disposal or sale for beneficial use 599 142,000Fly Ash ’82 Ash Pond for disposal or sale for beneficial use 2,394 568,000Gypsum from FGD Recycled- sold for wallboard or cement production ~150-200 50,000Filter Cake from FGD Blowdown Shipped to off-site landfill (see question 6) ~ 3- 4 1,100 – 1,200Asbestos Shipped off-site for disposal Infrequent See Table 3Miscellaneous hazardous waste (lead-acidbatteries, solvents, ignitable waste, etc.) Shipped tooff-site hazardous waste facility Infrequent See Table 3Miscellaneous non-hazardous waste Shipped tooff-site waste facility infrequent See Table 3(1)By definition in the Information Request, wastewater includes“process wastewater, waste slurryor sludge, cooling water, storm water runoff, and sanitarywastewater.”(2)By definition in the Information Request,waste streams other than wastewater include“by-products, residues, solid waste, andhazardous waste”.(3)Annual flow of wastewater streams is estimated from daily flows, as stated in2010 NPDES permit application, with a plant capacity factor of 85% assumed.(4)Annual production of bottom ash and fly ash is estimated using combustion calculations and assumption of 80% fly ash and 20%bottom ash produced.Daily production of ash has been estimated using the annual volume and a plant capacity factor of 65%.(5)These wastes are directed to the ’82 Ash Pond for treatment prior to discharge through Outfall 001 to the French Broad River.(6)The volume of water from the combustion turbine facility is estimated from 2 blade washing events per year, 2 turbines at thesite, and consumption of 0.02MGD per wash event per turbine.Response to EPA CWA 308 and RCRA 3007 Information Request Progress Energy Carolinas, Inc.Asheville Steam Electric PlantPage 13 of 15Table 3 Hazardous and Non Hazardous Waste Streams Generated at Asheville SteamElectric Plant in the Last Five YearsResponse to Question 7Waste Stream Year Shipped Amount Shipped*(pounds,unless otherwise noted)Hazardous WasteRQ, NA3077, Hazardous Waste Solidn.o.s (lead), 9,PGIII 2010 500RQ, NA3077, Hazardous Waste Solidn.o.s (lead), 9,PGIII 2009 20UN3432 Polychlorinated Biphenyls solid, 9 PG III ** 2009 51 kgUN1950, Waste Aerosols, 2.1 2009 150UN3432 Polychlorinated Biphenyls solid, 9 PG III ** 2008 10Hazardous Waste Solid n.o.s (lead), 9,NA3077, PGIII(D008) 2006 5 gallonsWaste paint and Related material, 3, UN1263,PGII 2006 55 gallonsHazardous Waste Solid n.o.s (lead), 9,NA3077, PGIII (lead) 2006 1062Waste Flammable Liquids,n.o.s 3, UN 1993, PGII, (acetone) 2005 500Non-Hazardous WasteUN2795, Batteries Wet, filled with acid 8, PG III 2010 300UN2809, Mercury contained in manufactured articles, 8, PGII 2010 7Non hazardous, non regulated material (oily rags) 2010 800Non hazardous, non regulated material (oily rocks) 2010 3,600UN2800, Batteries, wet, non spillable, 8, PGIII 2010 50UN3090, Lithium batteries, 9, PGII 2010 10Universal Waste Batteries, Batteries, dry,sealed, n.o.s. (nickel/cadmium) 2010 5Universal Waste Batteries, dry, sealed, n.o.s. (alkaline) 2010 50Universal Waste Lamps, 4 foot 2010 30Universal Waste Lamps, 8 foot 2010 45Universal Waste Lamps, metal halide 2010 25Mercury contained in manufactured articles, 8 UN2809, PGII 2009 10UN2800, Batteries, wet, nonspillable, 8, PGIII 2009 100Alkaline Batteries, DOT non-regulated 2009 110Universal Waste Lamps, 8 foot 2009 100Universal Waste Lamps, 4 foot u shaped 2009 130Response to EPA CWA 308 and RCRA 3007 Information Request Progress Energy Carolinas, Inc.Asheville Steam Electric PlantPage 14 of 15Table 3 Hazardous and Non Hazardous Waste Streams Generated at Asheville Steam Electric Plant in the Last Five Years, continuedWaste Stream Year Shipped Amount Shipped *(pounds, unless otherwisenoted)Universal Waste Lamps, 4 foot 2009 300Universal Waste Lamps, metal halide 2009 90Universal Waste Lamps, 6 foot 2009 50Non regulated waste, water and mud 2009 1,200 gallonsUN2794, batteries, wet filled with acid, 8, PGIII 2009 150Non hazardous non regulated material, oily gravel 2009 500Non hazardous non regulated material, oily absorbents 2009 150Non hazardous non regulated material, oils 2009 200Universal Waste Lamps, less than 4 foot 2008 50Universal Waste Lamps, greater than 4 foot 2008 40Non hazardous non regulated material, parts washer fluid 2008 290UN2794, Batteries, wet, filled with acid, 8, PGIII 2008 80Universal Waste Lamps, metal halide 2008 20Batteries, dry (alkaline) 2008 80Non hazardous, non regulated material (oily water) 2008 1,000Non hazardous non regulated material (oily absorbent) 2008 100Non hazardous non regulated material (ethylene glycol) 2008 900Non hazardous non regulated material (oily rocks) 2008 300Universal waste lamps (not specified) 2008 250Universal waste batteries (not specified) 2008 160Non hazardous liquids (n.o.s) vibratory eliminators/used oil 2007 400Non hazardous solids (n.o.s) fluorescent light bulbs 2007 150Non hazardous non regulated material (oily water) 2007 213 gallonsBatteries, wet, filled with acid, 8,UN2794, PGIII 2007 Unknown,manifest lists 4 drumsMercury contained in manufactured articles 2007 30Mercury contained in manufactured articles (batteries) 2007 Unknown,manifest indicates 88 piecesNon hazardous liquid not specified 2007 55 gallonsResponse to EPA CWA 308 and RCRA 3007 Information Request Progress Energy Carolinas, Inc.Asheville Steam Electric PlantPage 15 of 15Table 3 Hazardous and Non Hazardous Waste Streams Generated at Asheville Steam Electric Plant in the Last Five Years, continuedWaste StreamYear ShippedAmount Shipped *(pounds, unless otherwisenoted)Universal Waste Lamps, 4 foot 2007 166 piecesUniversal Waste Lamps, 8 foot 2007 40 piecesUniversal Waste Lamps, small bulbs 2007 31 piecesRQ, mercury contained in manufactured articles, 8, UN2809, PGIII 2006 500Non regulated liquids, used oil 2006 55 gallonsNon hazardous liquid not specified 2006 330 gallonsNon hazardous solids not specified 2006 1,000Non regulated solids centrifuge parts 2006 4 piecesStockpiled soil 2006 106.26 tonsUniversal waste - manometer 2006 10Non hazardous material n.o.s., oil, sand and water 2006 596 gallonsNon hazardous material n.o.s., oil and sand 2006 498 gallonsUniversal waste bulbs 2006 3 containersNon hazardous material, used grease 2006 40Non hazardous liquid, turbine oil 2006 495 gallonsUniversal waste, batteries 2006 75Non hazardous solid n.o.s (soil contaminated with hydraulic fluid) 2006 7,500Universal waste bulbs not specified 2005 Not specifiedMercury contained in manufactured articles 2005 172Universal waste batteries 2005 18 packagesMercury contained in manufactured articles, 8, UN 2809 (lamps) 2005 50Universal waste thermometers 2005 21 packagesNon regulated liquid, pulv. oil 2005 330 gallonsMercury contained in manufactured articles 2005 14 packagesUniversal waste batteries 2005 2 packagesNon regulated solids n.o.s.(oily materials) 2005 1,500*Daily and annual production of these wastes varies in response to maintenance and operation activities at the site.**Replacement light bulbs not otherwise labeled as PCB free. Not believed to be hazardous materials.Note: Data are based on waste manifests, included inAppendix Q.