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HomeMy WebLinkAboutNC0005363_Permit (Modification)_20080916h*o�, Pro ess Energy MAR 0 5 2008 '� �� ,� J I March 5, 2008 Mar Mr. Gil Vinzani MAR - 6 2008 Supervisor, Eastern NPDES Program North Carolina Department of Environment and Natural Resources Division of Water Quality - 1 1617 Mail Service Center Raleigh, NC 27699 -1617 Subject: Carolina Power & Light Company d/b /a Progress Energy Carolinas, Inc. Weatherspoon Ste t NPDES Permit No Saion Request for Permit Dear Mr. Vinzani: Progress Energy Carolinas, Inc., requests an NPDES permit modification to incorporate the new storm water activity described herein. Enclosed is the completed EPA Form 2F, Application for Permit to Discharge Storm Water Discharges Associated with Industrial Activity, and the amended Form 2C Attachment 3 (bolded areas indicate change). As indicated in the current Form 2C, storm water from the industrial activity areas associated with the power plant operations flows into the cooling pond and, thus, is not considered part of this request. We understand that this request is a minor modification with no associated fee but could be a major modification and therefore a check for the associated fee of $1,030 is enclosed. The Weatherspoon Steam Electric Plant plans to pursue ash reclamation activities previously authorized in the latest NPDES permit application. These events will not alter the chemical character of the ash pond content and thus, no change in the nature of the discharge to the cooling pond is anticipated. Further, no additional discharges are expected. During ash removal projects, trucks are filled with moistened ash (about 15 -18 %) within the confines of the ash pond boundary and covered. The trucks are washed down prior to leaving the area and travel along a graveled on -site roadway before exiting the site via the existing plant access road. The approximately 0.6 mile long access road becomes a new source of industrial activity when this power plant by- product is transported along its route. Along the access road, there are three discrete conveyances of storm water runoff which ultimately discharges into the Lumber River. In section one, roadside ditches direct runoff into an unnamed tributary which flows to the river. Roadway runoff in sections two and three is collected in catch basins before being discharged to the river. Ash reclamation activities will not increase or change the quantity of storm water currently associated with the plant access road. Given that the drainage from all three sections of the roadway has the same characteristics, the three outfalls should have substantially identical storm water discharges. Thus, we request Progress Energy Carolinas,lnc. Weatherspoon Steam Plant 491 Power Plant Road Lumberton, NC 28358 Mr. Gil Vinzani, NCDENR 2 March 5, 2008 representative outfall status for any required analytical monitoring during ash reclamation projects. We propose to sample SW -1 because its receiving stream has the lowest flow. The currently proposed as reclamation project is scheduled to take about three years. Only on days without significant precipitation, twenty trucks per day carrying approximately 24 tons of ash per truck are planned. Specific quantities and timeframes may vary between projects. Progress Energy Carolinas, Inc., requests that the NPDES Permit for Weatherspoon Steam Electric Plant be modified to authorize the storm water discharges along the egress route for coal ash reclamation projects. We ask that if any requirements are imposed, they be required only for the time periods when an active ash reclamation project is ongoing. If there are any questions regarding the enclosed information, please contact Robin Bryson at (919) 546 -3962. I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations. Sincerely, C/ /�%" -azz� J. Mark Frederick Plant Manager JMF /rb Enclosures c: Mr. L. Baxley Ms. R. Bryson Mr. D. Mottola Carolina Power &,Light Company d /b /a WeathePspoon Steam Electric Plant Progress Energy Carolinas, Inc NPDES Permit Number NC0005363 Attachment 1. Site Drainage Maps The enclosed topographic map (Map 1) highlights the Weatherspoon Steam Electric Plant access road which will', become a new source of industrial activity when trucks begin to transport coal ash offsite. The enclosed drawn maps (Maps 2 and 3) detail the storm water drainage patterns and show the sections of roadway from which storm water is conveyed to either the Lumber River or an, unnamed tributary to the Lumber River. Storm water that drains from a small grassy area-adjacent to the power plant and from one of the administration area parking lots also flows into this drainage system. Storm water that falls on the power plant site is conveyed to the cooling pond, 'which discharges to the Lumber River through an NPDES -permitted outfall, and is not included in this'permit request. There are three distinct drainage areas along the access road The first storm water outfall (SW-1) is about 675 feet from the Power Plant Road' entrance and receives runoff -from ,approximately 1,640 feet of roadway. The road is sloped slightly such that most of the runoff flows towards the western edge -of the road which then drains along a grass - lined trough into a low area of an unnamed tributary,. An under -road culvert connects an offsite pond adjacent to an automobile parts business to this area also. l The second storm water outfall (SW-2) empties into the ,Lumber River near the power plant and receives drainage from approximately 1,720 feet of roadway A short concrete -lined ditch directs water from the eastern edge of the road into one of the drain junction boxes. Runoff from a side road drains into catch basins and flows below ground to the drain junction boxes. This outfall also receives drainage from the ditches alongside an abandoned rail line, a small grassy area udJacent to the power plant, and an administrative building parking lot. Two pipes from these junction boxes direct the storm water to the outfall. The third storm water outfall (SW -3) primarily discharges rainwater collected from the picnic area adjacent to -the power plant and- the runoff from the western, edge of the road which is funneled through an open collection pipe. Catch basins divert the water to the outfall. Al-1 03/04/2008 Carolina Power & Light Company d /b /a Weatherspoon Steam Electric Plant Progress Energy Carolinas Inc. NPDES Permit Number NC0005363 0 0.09 0.18 0.27 0.36 0.45 mi Map 1. Topographical map highlighting the access road to the Weatherspoon Plant. A1-2 03/04/2008 Carolina Power & Light Company d /b /a Weatherspoon Steam Electric Plant Progress Energy Carolinas, Inc. NPDES Permit Number NC0005363 —765 ft to top of grade Open Drainage from drain abandoned rail line pipe ditches and fields .�,uard *ouse : Q °; ' 4 Drain junction box q.• G • • 3 • 6 • •.r..�.�.�.v.r �.�n^�•ytrooms •• V N :.... ss� •. Scale (approximated) pproximated) M.•vw;Crovere 1 " = 80' '^ -" tat Appro —ated '~�'ti'��s Parking Lot /f 0 O ,`O G a` aG a� +`y Map 3. Drainage pattern for storm water discharge at outfalls SW -2 and SW -3. A1-4 03/04/ 0008 ti i •' •* Underground pipe s:�^_ •�p1Pe s •• :;;.: 111 � p � • ' Catch. ' •. •. basin SW-3 A q.• G • • 3 • 6 • •.r..�.�.�.v.r �.�n^�•ytrooms •• V N :.... ss� •. Scale (approximated) pproximated) M.•vw;Crovere 1 " = 80' '^ -" tat Appro —ated '~�'ti'��s Parking Lot /f 0 O ,`O G a` aG a� +`y Map 3. Drainage pattern for storm water discharge at outfalls SW -2 and SW -3. A1-4 03/04/ 0008 Progress Eneegy,,Carolinasjnc. Weatherspoon Steam Electric Plant National Pollutant Discharge Elimination System Permit Number NC0005363 Attachment 3 Form 2C - Item II- B,Flows, Sources of Pollution, and Treatment Technologies The Weatherspoon Plant is a coal -fired steam cycle electric generating plant with three units Four Internal Combustion, (IC) Turbines are also located on the plant, site The plant has a 225 -acre off stream cooling pond on the north side of the Lumber River in 'Robeson County, North Carolina Water is withdrawn from the Lumber River as required to make up evaporative and seepage losses from the cooling pond Water for plant use is also withdrawn from wells Makeup pumping rates from the rnverare highly variable depending upon, natural weather conditions, generation. load, plant operations, and cooling pond water level Chemical constituent's contained in both of these discharges will, in part, be 'representative of the,naturally occurring chemical quality of the intake water and will also have chemical constituents of such quality and quantity associated with similar discharges for fossil generating facilities of this size, type, and in this geographical location Eitherall,or part of the elements, enumerated in the Periodic Table, either singularly or in any combination, may from time' to time be contained 'in this discharge Each component of the discharges is described below OUTFAL'L 001 - DISCHARGE FROM`COOLING POND Plant waste streams are ,routed directly or, indirectly to the cooling pond and thereby recycled Releases from the cooling pond (Outfall 0011) are rare, occurring usually when a major storm is expected and additional freeboard is needed to prevent overtopping of the pond dikes On other occasions, the pond may need to be drawn down for maintenance purposes The cooling pond last discharged to the Lumber River in September of 1999 The permit required analyses were performed on, the discharge and submitted in the September 1999 Discharge Monitoring Report (DMR) The pH of -the cooling pond is neutralized when needed by adding acid or caustic at the discharge of the circulation water pumps A description of the waste streams -that discharge into the, cooling pond follows RECIRCULATED COOLINGWATER This flow provides condenser,cooling water for the three generating units The flow is discharged into the pond and routed through the pond° "by baffle dikes to achieve maximum surface cooling efficiency before reaching the•condenser cooling water intake,structure to be used again Cooling of the pond is achieved primarily by evaporation from the pond surface, which is estimated to consume a ,maximum of approximately 16 MGD above natural, evaporation rates, during times the units are in full operation_ Control of biological fouling on condenser surfaces is accomplished by chlorinating as required COAL PILE RUNOFF Rainfall runoff from the coal pile (approximately 6 acres) is routed to the cooling pond, which provides treatment by neutralization and sedimentation STORMWATER RUNOFF Rainfall runoff from the industrial portion of the site is ultimately routed to the cooling pond Sludges /sediments collected in sumps, catchment basins, etc are disposed of in the, ash pond ,or by other appropriate methods ASH SLUICE WATER Fly ash and bottom, ash from all three units is hydraulically conveyed by an ash sluice pipeline to the ash pond In addition, water from washing the interior of the precipitators is sent to the ash pond via the ash sluice pipeline A stand pipe allows for overflow release to a small secondary settling basin containing another.stand pipe,for release to the cooling pond' Progress Energy Carolinas, Inc. Weatherspoon Steam Electric Plant National Pollutant Discharge Elimination S stem Permit, Number NC0005363 'DOMESTIC WASTES Sanitary wastes are treated on -site by a septic tank and a sand and gravel drainage field which discharges to the cooling pond Flow from ,the system is dependent upon fluctuating demand due to variations ,in the number of personnel ,on site When needed, residuals are disposed of off-site by a licensed contract disposal firm CHEMICAL METAL CLEANING WASTES 'Wastes from the chemical cleaning of °the boiler1ubes are normally disposed of by evaporation in boilers, either onsite or at another Progress Energy facility Boiler cleaning is usually performed evey 10 years Units 1 and 3 boiler cleanings are currently scheduled for spring 2008 and 2004, respectfully , Should boiler cleaning wastes not be evaporated, they will be treated by neutralization and precipitation in portable holding tanks The liquid fraction of the metal cleaning wastes will be discharged to the ash pond The sludge fraction of the metal cleaning wastes will be disposed of in either, the ash pond or by other appropriate methods In addition, wastes, from the, chemical cleaning of the condenser tubes and,;heat exchangers are normally disposed' of in the ash pond Should condenser and heat exchanger cleaning wastes not be discharged into the ash pond, they will be evaporated At, this time it is unclear as to how often condenser and heat exchanger cleaning may be ,performed , Currently, Unit 3 heat `exchanger cleaning is scheduled for Aprd,2004 , IC TURBINE SITE There are four Internal Combustion (IC) Turbines located at the, Weatherspoon Plant All drains from the IC turbine site, including drains collecting rainfall,, are routed through an oil -water separator which discharges to the cooling pond Sludges /sediments collected in sumps, catchment basins, etc are disposed of in the ash pond or by other,appropnate methods AIR PREHEATER'WASHES The air preheaters are water washed infrequently When the air preheaters are washed approximately 50,000 gallons of wastewater,is produced and discharged to the ash pond via the ash sluice pipelines SPENT SANDBLAST MATERIAL Periodically, sections of boilers, turbines and miscellaneous parts require sandblasting The sandblasting process produces approximately 500 to 700 pounds of spent material annually This material is discharged to the ash pond via the ash sluice lines or by other suitable methods depending on work location LOW- VOLUME WASTES Waste streams not identified above fall in the category of low volume wastes All low volume Wastes described below are routed by gravity flow to the cooling pond Sumps convey miscellaneous equipment leakage, equipment drainage for maintenance; equipment wash down water, sampling streams, and closed cooling water system blowdown Water treatment wastes consist of solutions of sodium chloride, used for water softener regeneration, and sodium hydroxide and sulfuric acid which are used in the regeneration of demineralizers Demmeralizer regeneration wastes Are routed to the ash, pond via the ash sluice line Water softener regeneration wastes are routed directly to the cooling pond Blowdown of boiler water to control boiler °chemistry is routed to a flash ,tank, which discharges to the cooling pond Drains from areas likely to contain oil filled equipment or storage are routed through an oil -water separator Sludges /sediments from sumps, catchment basins,, etc are disposed of "in the ash pond or by other appropriate methods A summary of process chemicals is provided in Attachment 4 In many cases, chemicals added during the plant processes are consumed or chemically altered Only trace amounts might be recoverable in water entering the cooling pond Because the,coolmg 2' Progress Energy Carolinas, Inc. Weatherspoon Steam Electric Plant National Pollutant Discharge Elimination System, Permit Number NC0005363 pond serves as a final treatment basin and receives significantly greater volumes of water from other inflows, detectable levels of,these chemicals should not occur in the cooling pond discharge ASH MANAGEMENT AND RECLAMATION From time to time fly and bottom ash in the ash pond may be stacked or relocated within the diked boundary of the ash pond system As this pond management activity does not alter the chemical character of the pond contents, no change in the nature of the discharge to the cooling pond is anticipated In the event a practicable market becomes available,, Progress Energy may exercise the option of reclaiming ash from the ash pond system In consideration of the scope of such an operation, no additional discharges are expected to result from ash reclamation efforts Best management practices are established for these activities. During ash removal projects, trucks are filled within the confines of the ash pond boundary and the load covered. The trucks are washed down prior -to leaving ,the, area ,and travel along a graveled on -site roadway before exiting the site via the plant access road. HERBICIDE'AND PESTICIDE USAGE IN THE TREATMENT SYSTEM' PONDS Herbicides may be used as needed to control nuisance aquatic vegetation These herbicides are applied by licensed applicators, or persons under the immediate supervision of a licensed, applicator, in accordance with the,manufacfurer's instructions Pesticides may be used as needed to perform biological assessments These Pesticides are applied by licensed' applicators, or persons under the immediate supervision of a licensed applicator, in accordance with the manufacturer's instructions OUTFALL 002 - SERVICE WATER NON - CONTACT COOLING' WATER Non - contact cooling water is withdrawn from the Lumber River and passed through heat exchangers, to provide non - contact ;cooling for the Plant's closed cooling water system After passing through the heat exchanger, non - contact cooling water is routed 'either to the cooling pond or to the Lumber River via outfall 002 depending on the need for cooling pond makeup water Sodium hypochlonte (chlorine) is added at the non - contact cooling water pump intake, as required, 'to control biological fouling of the heat exchanger surfaces As established by written plant procedure, chlorine is only added during times where non - contact cooling water is routed to the cooling pond Upon completion of chlorine addition, the non - contact cooling water system as operated with discharge to the cooling pond for, a period of at least one hour prior to any redirection to outfall 002 This procedure has been implemented to prevent the discharge of chlorine to the, river via outfall 002 STORM WATER OUTFALLS ALONG ACCESS ROAD During periods when coal ash removal projects are conducted, and the access road to the power plant becomes part of an industrial activity, three storm water outfalls along the road are addressed in EPA,Form 2F. Storm water fromAhese three discrete,conveyances'is ultimately discharged into the Lumber River. 'Carolina Power &'Light Company d /b /a 'Weatherspoon Steam Electric Plant Progress Energy Carolinas, Inc NPDES Permit Number NC0005363. N Scale 1approximated) V7 ='270' NC 72 Power Plant Road Used auto parts business .�.,. Small pond offsite S -1 Unnamed tributary to the Lumber River Top of grade Map 2. Drainage pattern for storm water discharge at outfall SW -1. A1-3 03/04/2008 Progress Energy BIOCIDE CONDITION "The permittee shall not discharge any biocides that have not been previously approved in conjunction with the permit application. For biocides not previously approved by the Division of Water Quality, the permittee shall notify the Director in writing prior to use of these biocides. Completion of Biocide Worksheet Form 101 is not necessary for those outfalls with toxicity testing requirements." Progress Energy Carolinas also requests that Footnote 3 on the Section A(2) page be amended to read "Monitoring requirements apply only if chlorine is discharged through outfall 002." Sodium hypochlorite (chlorine) is added at the non - contact cooling water pump intake, as needed, to control biological fouling of the heat exchanger surfaces. As established by written plant procedure, if chlorine is added for biofouling control, this chlorinated non - contact cooling water discharge is routed to the cooling pond. Upon completion of chlorine addition, the non - contact cooling water system is operated with discharge to the cooling pond for a period of at least one hour prior to any redirection to Outfall 002. This procedure has been implemented to prevent the discharge of chlorine to the river. Thank you in advance for your consideration of the above requested items. If there are any questions regarding our requests or the enclosed application information, please contact Ms. Robin Bryson at (919) 362 -3962. I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations. Sincerely, (�;/PL_,ie z� � J. Mark Frederick Manager - Weatherspoon Plant JF /rb Enclosures: EPA Form 1 — General Information EPA Form 2C — Wastewater Discharge Information EPA Form 2F — Storm Water Discharges Associated with Industrial Activity c: NCDENR -DWQ Fayetteville Regional Office Robin Bryson, Progress Energy Carolinas, Inc. Progress Energy Carolinas, Inc. Weatherspoon Steam Plant 491 Power Plant Road Lumberton, NC 28358 `� Progress Energy Progress Energy Weatherspoon Steam Electric Plant 491 Power Plant Rd. Lumberton, NC 28358 Mrs. Dina Sprinkle NCDENR Division of Water Quality Point Source Branch 1617 Mail Service Center Raleigh, N. C. 27699 -1617 RECEIVED January 26, 2009 JAN 2 8 2009 DENR - WATER QUALITY File No: WSPN — 12520 -13-01 POINT SOURCE BRANCH Subject: Carolina Power & Light Company d/b /a Progress Energy Carolinas, Inc. Weatherspoon Steam Electric Plant, Robeson County, Lumberton, North Carolina National Pollutant Discharge Elimination System ( NPDES) Permit No. NC0005363 Renewal Application Dear Mrs. Sprinkle: The current NPDES permit for the Progress Energy Carolina's Weatherspoon Steam Electric Plant expires on July 31, 2009. By this correspondence, Progress Energy Carolinas respectfully requests that the NPDES permit for the facility be reissued. Enclosed are the completed application forms with attachments, one signed original and two copies. Progress Energy Carolinas has submitted five amendments to the last NPDES permit application. There were two amendments to add coal freeze conditioning agents to Form 2C, Attachment 4 (November 2004 and December 2008); an amendment to incorporate the reverse osmosis water treatment system into full operation (March 2005); an amendment to add three storm water outfalls along the access road to allow for coal ash reclamation activities (March 2008); and an amendment to increase the predicted number of trucks leaving the site with reclaimed ash (September 2008). The enclosed Form 2F includes sampling data results from the new storm water outfalls as required by regulation. Some of the analyses have not been conducted but the results will be submitted by the March 2010 due date under another transmittal. The description of the management of solids generated during wastewater treatment at the Weatherspoon Steam Electric Plant is described in Form 2C, Attachment 3. Progress Energy Carolinas requests that the following condition be added to the renewed NPDES permit. The purpose of this condition is to formally recognize the guidance and understanding we have received from the Division in the past. Progress Energy Carolinas, Inc. Weatherspoon Steam Plant 491 Power Plant Road Lumberton, NC 28358 Progress Energy Carolinas, Inc. NPDES Permit Number NC0005363 Weatherspoon Steam Electric Plant 2009 Renewal Application Attachment 1 Form 1 Item XI Maps 21 I" 1 �y r ' J � US Southeas Berton (NC) Qu s 01'x$9 LCJ '•i� All i h,tsReser NotForNavigat n I rW_,;' h, ,.Ao 1'" fg 4"1 A A 0 0.4 0.8 1.2 1.6 2 miles 1 -1 \ • 1 S Plant Co In Lak y �- ,. — r •fir% .. I Weathempoon Steam Electric Plant Site � X90 NORTH CAROLINA 0 0.4 0.8 1.2 1.6 2 miles 1 -1 Progress Energy Carolinas, Inc. NPDES Permit Number NC0005363 Weatherspoon Steam Electric Plant 2009 Renewal Application Attachment 1 continued 0 0.1 0.2 0.3 0.4 05 mile 1 -2 Progress Energy Carolinas, Inc. NPDES Permit Number,, NCO005363 Weatherspoon Steam Electric Plant 2009 Renewal Application Attachment 2 Form 2C Item II -A Flows, Sources of Pollution, and Treatment Technologies - Source Estimated Average Flow Comments A 4 -16 MGD Make up waterfrom Lumber River, Maximum rate is 9 12 MGD B 4 03 MGD Non - contact cooling water discharge, Maximum rate is 9 12 MGD C 0 7 MGD Make up for cooling pond, Maximum rate is 9.12 MGD D 193 MGD Condenser cooling water - all three units operating E 2,400 GPM Maximum make -up rate for fire water system F 1`00 GPD Low volume wastes to the ash pond G 21 MGD Ash pond discharge to cooling pond H 191 MGD Condenser discharge to cooling pond 1 120 GPM Intermittent flow as required J 0 14 MGD Discharge to cooling pond from oil /water separator K 0 024 MGD Estimated using average daily rainfall L 0 14 MGD Variable due to intermittent processes and runoff M 0.7 MGD Maximum estimated rate is 1 6.MGD N 0 MGD Pond does not normally discharge See Attachment 3 for details O 0 00125 MGD Sanitary wastes P 50,000 gal /event - Units 1 & 2 42,000 gal /event - Unit.3 Amounts estimated, Usually evaporated in boiler Q 0 19 MGD ,Estimated using average daily rainfall R 0 011 MGD Estimated using average daily rainfall S 4,000 GPD Low volume waste (reverse osmosis reject water) 2 -1 Progress Energy Carolinas, Inc. NPDES Permit Number NC0005363 Weatherspoon Steam Electric Plant 2009 Renewal Application Attachment 2 continued Combustion Turbine Site 2 -2 Evaporation Potable Water - Sanitary Waste Septic Sand & Q System System Tank Gravel P Bed Metal Cleaning Wastes Wells i I Plant Systems Low Volume L Wastes Plant Drains Lumber River i F A I i oily Wastes River Intake i ' NV Structure s Ash�Siuice Condenser stem Retention I I Basin Heat Exchancier i Plant Drains i i ' D � E OiUVNater Fire "Water Internal Intake Separator S stem Structure J Q Plant Area Storm Ash Water Runoff Pond S Low Volume Wastes Coal Pile Runoff Secondary Settling K Evaporation & Basin Seepage M G C Cooling - Pond B 7Separator N Storm Water Lumber River NV Outfalls Outfa11002 Vater Outfa11001 Combustion Turbine Site 2 -2 Progress Energy Carolinas, Inc. NPDES Permit Number NC0005363 Weatherspoon Steam Electric Plant 2009 Renewal Application Attachment 3 Form 2C Item II -B Flows, Sources of Pollution, and Treatment Technologies The Weatherspoon Steam Electric Plant is a steam cycle electric generating plant with three coal - burning units and four internal combustion turbines Source water is withdrawn from the Lumber River as, required to make up evaporative and seepage losses from the power plant's cooling pond Makeup pumping rates from the river are, highly variable depending upon natural weather conditions, generation load, plant operations, and cooling pond water level Water for,power plant' use is also'withdrawn from groundwater wells Chemical constituents of the power plant discharges will, in part, be representative of the naturally occurring chemical quality of the intake water and will also have chemical constituents of such quality and quantity associated with similar discharges,for fossil generating facilities of'this size, type, and in this geographical location Either all or part of the elements enumerated in the Periodic Table, either singularly or in any combination, may from time to time be contained,m this discharge, There are-five permitted outfalls at the Weatherspoon Steam Electric Plant, three of which are for storm water along the access road Components of the discharges are described below OUTFALL 001 - DISCHARGE FROM COOLING POND Most of the power,plant waste streams are routed directly or indirectly to the 225 -acre off - stream cooling pond located on the north side, of the Lumber'River in Robeson County, North Carolina, and thereby recycled Releases from the cooling pond are rare, occurring usually when a mayor storm is expected and additional freeboard is needed to prevent °overtopping of the,pond -dikes On other occasions, the, pond may need to be drawn down for maintenance purposes The cooling pond last discharged to the Lumber River in September of 1999 There are also incidental seepages and leaks through the dikes and retaining wall (sheet pilings) to ifie Lumber River from the cooling pond The pH of the cooling pond is neutralized when needed by adding acid or caustic at the circulation water pumps A description of the waste streams that discharge info the - cooling ipond follows Recirculated Cooling Water This flow provides condenser cooling water for,the three generating units The`flow is,discharged into the cooling pond and routed through the cooling pond by baffle dikes to achieve maximum surface cooling efficiency before reaching the condenser cooling water circulating water'pumps to be used again Cooling of the water is achieved primarily by evaporation from the pond surface, which'is estimated to consume a maximum of approximately 1 6 MGD above natural evaporation rates during times the units' are in full operation Control of'biolog'ical fouling on condenser surfaces is accomplished by chlorination, as needed Coal Pile Runoff Rainfall runoff from the coal pile (approximately 6 acres) is routed to the cooling, pond, which provides treatment by sedimentation Freeze conditioning agents may be applied to coal shipped via trains to the power plant typically between November 15 and March 15 Storm Water Runoff Rainfall runoff from power plant areas is ultimately routed ,to the cooling pond Sludges /sediments collected `in sumps, catchment basins, etc are disposed of'in the ash pond or by,other appropriate methods Ash Sluice Water Fly ash and bottom ash'from all three units is hydraulically conveyed by a ash sluice pipeline system to the ash pond In addition, water from washing the interior of the precipitators is sent to the ash 3 -1 Progress'Energy Carolinas, Inc. 'NPDES, Permit Number NC0005363 Weatherspoon Steam Electric Plant 2009 Renewal Application pond via the-ash sluice pipeline In the ash pond,,a stand pipe allows for overflow release to a small secondary settling basin containing another stand pipe for release, to the cooling pond Sanitary Waste `Sanitary waste is treated on -site by a septic tank and a sand and' gravel drainage field which discharges to the cooling pond Flow from the system is dependent upon fluctuating demand due to variations in the number of personnel on site When needed, residuals are,disposed of off -site by'a licensed contract disposal firm Metal Cleaning Waste Wastes from the chemical cleaning of the boiler,tubes are normally disposed of by evaporation in boilers, either onsite or at another Progress Energy facility Boiler cleaning is usually performed every 10 years Should boiler cleaning wastes not be evaporated, they will be treated by neutralization and precipitation in portable holding tanks The liquid fraction of °the metal cleaning wastes will be discharged to the ash pond The sludge fraction of the metal cleaning wastes will be disposed of in either the ash pond or by other,appropnate methods Internal Combustion Turbine (CT)-Site There are four internal combustion turbines located at the Weatherspoon Plant' All drains from the CT site, including drains collecting rainfall, are routed through an oil -water separator which discharges to the cooling pond Sludges /sediments collected in sumps, catchment basins; etc are disposed of in the ash pond or by other appropriate methods Low - Volume Waste All low volume wastes are routed by gravity flow to the cooling pond Sumps collect °and convey miscellaneous equipment, leakage, .equipment drainage for maintenance, equipment wash down water, sampling streams, and closed cooling water system blowdown Water treatment wastes consist of solutions of sodium chloride, used for water softener regeneration, and sodium hydroxide and sulfuric acid which are used in the regeneration of'derniineralizers Demineraliier regeneration wastes are routed to the ash pond via the ash sluice line Reverse osmosis reject water and cleaning solutions, and water'softener regeneration wastes are routed directly to the cooling pond Blowdown of boilervater to control boiler chemistry is routed to a flash tank, which discharges to the cooling pond Drains from areas likely to contain oil filled equipment or storage are routed through an oil - water separator Sludges /sediments from sumps, catchment basins, etc are disposed of in the ash pond ,or by other appropriate methods The air preheaters are water washed infrequently, When the air preheaters are Washed, approximately 50,000 gallons of wastewater is produced and discharged to the ash pond via1he ash sluice pipelines In addition, wastes from the chemical cleaning of the condenser tubes and heat exchangers are normal ly,disposed , of,in the ash pond' Should condenser and heat exchanger cleaning wastes not be discharged into the -ash pond, they will be evaporated At this -time it is unclear as to how often condenser and heat exchanger cleaning may be performed In, many cases, chemicals added during,the, plant processes are consumed or chemically altered Only trace amounts might be discernable in water entering the cooling pond Because the cooling pond serves as a final treatment basin and receives significantly ,greater volumes,of water from other inflows, detectable levels,of these chemicals should not occur in the infrequent cooling pond discharge Non- contact Cooling Water Non - contact cooling water withdrawn from, the Lumber River passes through heat exchangers to provide non - contact cooling for the power plant's closed cooling water system which is typically discharged to Outfall 002 As necessary, however, the non- contact cooling water may be routed temporarily to the cooling pond depending on the need for cooling pond makeup water Sodium hypochlonte (chlorine) is added at the non - contact cooling water pump intake, as needed, to control biological fouling of the heat exchanger surfaces 3 -2 Progress Energy Carolinas, Inc. NPDES Permit Number NC0005363 Weathers'noon Steam Electric Plant 2009' Renewal Application Miscellaneous Waste Streams to the Cooling Pond `Coal Ash Management From time to time fly and bottom ash in the ash pond may be stacked or relocated within the diked boundary of the,ash pond system As this pond management activity does not alter the chemical character of the pond contents, no change in the nature of,the discharge to the cooling pond is anticipated Coal Ash Reclamation In the event a practicable market becomes available, Progress Energy may exercise the option of reclaiming coal ash from the ash pond system In consideration of the scope of such an operation, no additional discharges are expected to result from coal ash reclamation efforts Bestmanagement practices are established for these activities During ash removal projects, trucks are filled within the confines of the ash pond boundary and the load covered The trucks are washed down prior, to leaving the area and travel along a graveled on -site roadway before exiting the site via the plant access road Herbicide and Pesticide Usage in the Treatment System Ponds Herbicides may be used as, needed to control nuisance aquatic vegetation These herbicides are applied by licensed applicators, or persons under the immediate supervision of a licensed applicator, in accordance with the manufacturer's instructions Pesticides may be used as needed to, perform biological assessments These Pesticides are applied by licensed applicators, or persons under the immediate supervision of a licensed applicator, in accordance with the manufacturer's instructions OUTFALL 002 — NON - CONTACT COOLING WATER Non - contact cooling water is withdrawn from the. Lumber River and passed - through heat exchangers to provide non - contact cooling for the plant's closed cooling water,system After passing through the heat exchanger, non - contact cooling water is routed to the Lumber River via Outfall 002 Depending-on _ the need forcooling pond ,makeup water, the non- contact cooling water may be directed to the cooling pond Sodium hypochlonte (chlonne),is,added at the non - contact cooling water pump intake,, as needed, to control biological fouling of the heat exchanger surfaces As established by written plant procedure, chlorine is only added during times where non - contact cooling water is. routed to the cooling pond Upon completiori of chlorine addition, the non - contact cooling water system is operated with discharge to the cooling pond for a period of at least one hour prior to any redirection to Outfall 002 This procedure has been'implernented to prevent the discharge of chlorine to the river OUTPAL' LS SW-1, SW -1, AND SW -3 — STORM WATER During periods when coal ash removal prolects,are,conducted, the access road'to,the power plant becomes part of an industrial activity with three storm water outfalls along the road which are addressed in EPA Form 2F Storm water from these three discrete,conveyances is ultimately discharged into the Lumber River 3 -3 Progress Energy Carolinas, Inc: NPDES Permit Number NC0005363 Weatherspoon Steam Electric Plant 2009 Renewal Application Attachment 4 Form 2C Item VI Potential Discharges Not Covered by Analysis Chemical Quantity Frequency Purpose (used /yr) Hydrazine 165 gal Continuous - when units are operational Oxygen scavenger in boiler TrisodiUm phosphate 1,000 lb As needed pH control in boiler Disodium phosphate 5001b As needed pH, control in boiler Morpholine 275 gal Continuous - when pH control in boiler units are operational Sodium hypochlorite 12,950 gal As, needed Condenser and heat exchanger biofouling control Sodium hydroxide 9,000 gal As needed Deminerahzer regeneration Sodium hydroxide As needed As needed Cooling pond neutralization Sulfuric acid 2,000 gal As needed Demrneralizer regeneration Sulfuric acid 19,000 gal, As needed Cooling pond neutralization Molybdenum trioxide 330 gal As needed Corrosion control in,boder Sodium chloride 8,000 lb Twice per month Water softener regeneration Sulfur, elemental 75 ton Continuous - when Flue gas, conditioning Unit 3 is operational Citric acid, 50% 1,460 gal /event Approximately once Boiler cleaning per 10 years per unit Citric acid, dry 3,500 lb/unit/event Approximately once Boiler cleaning per 10 ears er,unit _ Ammonium hydroxide 1,560 gal /event Approximately once goiler,cleaning er 10 years per unit 1,775 lb/event - 'Sodium Nitrite Units 1 & 2 Approximately once Boiler cleaning 1,450 lb/event - per 10 years per unit _ Unit 3 - Corrosion Inhibitor 55 gal`` /,'unit/event Approximately once Boiler cleaning per 10 years per unit 475 lb/event — Amm`onium bicarbonate Units 1 & 2 Approximately once 375 lb/event — per 10 years per unit Boiler cleaning Unit 3 EDTA, 39% 6,000 Approximately once Boiler cleaning al /unit/event per 10 years per unit Hydrochloric,acid 1,000 gal /event As,needed Condenser cleaning Rodine 213 5 gal /event As needed Condenser cleaning Ammonium bifluonde 100 lb/event As needed Condenser cleaning 4 -1 Progress Energy Carolinas, Inc. NPDES Permit Number N00005363 Weatherspoon Steam Electric Plant 2009 Renewal Application Chemical Quantity (used'' /yr) Frequency Purpose ,FAF -10 foam agent 110 gal /,event As needed Condenser cleaning FAF -20 anti -foam agent 20 gal /event As needed Condenser cleaning Sodium carbonate 500 'lb /event As needed Condenser cleaning Sodium hydroxide 400 gal /event As needed Condenser cleaning Sandb►ast,Media 500 -700 Ib As needed Equipment cleaning Rhodamine liquid dye 0 01 -0 03 al /event As needed Performance testing Hypersperse MDC120 25 lb/MG Duping operation 'Reverse osmosis anti - scalent Solisep MPT150 17 lb/MG During operation 'Reverse osmosis coagulant Kleen MCT403 - 48 lb/event Quarterly or as needed Reverse osmosis membrane cleaning Kleen MCT411 24 lb/event Quarterly or as needed Reverse osmosis membrane cleaning O'B Freezetrol 60 Variable As needed Coal freeze conditioning agent O'B Freezetrol 62 Variable As needed Coal freeze conditioning agent O'B Freezetrol 76 -T Variable As needed Coal freeze conditioning agent FCA- 1'000 Variable As needed " Coal freeze conditioning agent ,FCA -1010 Variable As needed Coal freeze conditioning agent 'FCA -2000 Variable As needed Coal freeze conditioning agent FCA -2500 Variable As needed Coal freeze conditioning agent FCA -3070 Variable As,needed Coal freeze conditioning agent, SRA -6000 Variable As needed Coal °freeze conditioning agent SRA -7000 Variable, As needed Coal freeze conditioning agent Flomin ST- Geomelt55 Variable As needed Coal freeze conditioning agent Flomin ST -944 Variable As needed Coal freeze conditioning agent AKJ FC =504 Variable As needed Coal freeze'conditioning agent BT 910 Variable As, needed Coal freeze conditioning agent NALCO 8880 Variable As needed ent Coal freeze conditioning agent 1310 -PRO 55 Variable As needed Coal freeze conditioning agent FreeFlow SR -300 Variable As needed Coal freeze conditioning agent 4 -2 Progress Energy Carolinas, Inc. NPDES Permit Number NC0005363 Weatherspoon Steam Electric Plant 2009 Renewal Application Attachment 6 Form 2F Item III Site Drainage Maps 1 -4 AO7;0�- Imo" i I I W. Ll M �! 0 0.1 0.2 03 0.4 0.5 miles 6 -1 Progress Energy Carolinas, Inc. NPDES Permit Number NC0005363 Weatherspoon Steam Electric Plant 2009 Renewal Application Attachment 6 continued —765 ft to top of grade Open Drainage from drain abandoned rail line pipe ditches and fields i cuardC.,® �,��Drain junction ba Underground pips •. '• Catch °y'� •'• •• 1' SW -2 basin •' '.. '•.;�, SW -3 ;h.• .A�� �..• ''•.. •. Od G d Old fQStroams •. Parking Lot N 1 Scale (approximated) covered I111 = $O, picnic table Approximated 6-2 \`c�Q o° vo a` a� ��A ao a� Jy `ca Progress Energy Carolinas, Inc. NPDES Permit Number NC0005363 Weatherspoon Steam Electric Plant 2009 Renewal Application Attachment 6 continued N 1 Scale (approximated) I 1" = 270' NC 72 Power Plant Road Used auto parts business Small pond offsite SW-1 Unnamed tributary to the Lumber River Top of grade 6 -3 Coal Fired plants in NC Progress Energy Weatherspoon.— NC0005363 — East Issued Modification 5/13/32008, (original issued 9/27/2004) Expire: 7/31/2009 There is no FGD process. There is one ash pond that discharges to, the main cooling pond. The, cooling pond_ has a designated outfall with limits Modification was to address storm water management requirements. There is no special condition for Dike inspection In the last-renewal there was no pursuit of an RPA since—no changes or reduction in limits /monitonng lwere considered valid. Fact Sheet supports last permit renewal. Narrative reviewed, no problems noted: Reviewed,By. Ron Berry Review'Date '1/16/09 Cv Progress Energy December 1, 2008 Mr. Gil Vinzani, Supervisor, Eastern NPDES Program Division of Water Quality North Carolina Department of Environment and Natural Resources 1617 Mail Service Center Raleigh, NC 27699 -1617 Subject: Carolina Power & Light Company dba Progress Energy Carolinas, Inc. Asheville Steam Electric Plant NPDES Permit Number NC0000396 Cape Fear Steam Electric Plant NPDES Permit Number NC0003433 Lee Steam Electric Plant NPDES Permit Number NC0003417 Mayo Steam Electric Plant NPDES Permit Number NCO038377 Roxboro Steam Electric Plant NPDES Permit Number NC0003425 Sutton Steam Electric Plant NPDES Permit Number NC0001422 Weatherspoon Steam Electric Plant NPDES Permit Number NC0005363 NPDES Permit Application Amendment Dear Mr. Vinzani: Progress Energy Carolinas, Inc. (PEC) proposes to amend the NPDES Permit application for the subject facilities to add three additional freeze conditioning agents. These facilities expect to receive shipments of coal treated with freeze conditioning agents during the winter months (November 15 through March 15). Freeze conditioning agents, needed depending upon expected weather conditions during transport to ensure coal does not freeze in railcars, will be applied at an approximate rate of 2 pints per ton of coal. The product names used by the various coal mines which supply fuel to Progress Energy Carolinas power plants could include one or more of the additional following products (MSDSs enclosed): Product Name Primary Composition FreeFlow SR -300 30 -50% glycerin Flomin ST -944 SRA > 50% diethylene glycol mixture and polymer /surfactant blend Bio -Pro 55 55% glycerin Coal pile runoff at each of these facilities flows to a treatment system (e.g., ash pond, cooling pond, settling basin). However, since there is a slight potential that these chemicals could be present in the wastewater that is ultimately discharged via a permitted outfall, PEC requests that these products be appended to the NPDES permit application. Note that toxicity testing is a permit requirement at each power plant outfall which contains the coal pile runoff waste stream. `f� Progress Energy eptember T5, 2008 Mr. Gil Vinzani S E P 15 2008 Supervisor, Eastern NPDES Program North Carolina Department of Environment and Natural Resources Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699 -1617 ii r L� SEP �' g 2008 ' /6 i DE %'R - WATER GJALITY I - •-- _.-- -` �1'tiT SOU? �_�_?�.DN - ___._. �._ Subject: Carolina Power & Light Company d/b /a Progress Energy Carolinas, Inc. Weatherspoon Steam Electric Plant NPDES Permit No. NC0005363 Permit Application Amendment Dear Mr. Vinzani: Progress Energy Carolinas, Inc., is amending our NPDES permit application to reflect an increase in the planned number of trucks per day to transport coal ash off site as part of the ash reclamation activity at the Weatherspoon Steam Electric Plant. The ash reclamation activity currently conducted by the Weatherspoon Steam Electric Plant was described in the latest NPDES permit application. In the cover letter, we indicated that twenty trucks per day were planned. Due to changing market conditions, we are planning to increase the number of trucks per day to approximately forty. We will continue to follow our Best Management Practices (BMPs) and thus we do not expect any increased discharges into the three permitted storm water outfalls. Please amend your files accordingly. If there are any questions, please contact Robin Bryson at (919) 546 -3962. I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. 1 am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations. Sincerely, /- 17 1 e— i -; �A-.' � Mark Frederick, Plant Manager JMF /rb Enclosures c: Mr. L. Baxley Ms. R. Bryson A I PAYrpgAts,Inc. 491 Power Plant Road Lumberton, NC 26358