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HomeMy WebLinkAboutNCS000229_Renewal Application_2011NPDES STORMWATER PERMIT RENEWAL APPLICATION NCS000229 WESTMORELAND PARTNERS, LLC ROANOKE VALLEY ENERGY FACILITY Prepared for: Westmoreland Partners, LLC Roanoke Valley Energy Facility 290 Power Place Weldon, North Carolina 27890 Prepared by: URS Corporation — North Carolina 1600 Perimeter Park Drive, Suite 400 Morrisville, North Carolina 27560 (919)461-1100 URS Project No. 31827518 December 2011 Roanoke Valley Energy Facility Westmoreland Partners, LLC December 22, 2011 Mr. Bradley Bennett Stormwater Permitting Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 RE: NPDES Stormwater Permit Coverage Renewal Roanoke Valley Energy Facility Permit Number NCS000229 Halifax County Dear Sir, p@[Eawmo DEC 2 9 2011 DENR- WATER QUALITY KTLAMSAND 5TDRMWATER BRANCH On behalf of Westmoreland Partners, LLC, attached is the application for the renewal of NPDES Permit NCS000229, which expires on June 30, 2012. Enclosed is the permit renewal application, which consists of the individual permit Renewal Application Form, the Supplemental Information Request form with required documentation, and the signed Stormwater Pollution Prevention Plan Certification. In a letter to you dated February 9, 2009, Westmoreland Partners, LLC, submitted a permit modification to request the removal of Total Aluminum as benchmark discharge characteristic. In your letter dated March 24, 2009, you state that the agency cannot make a determination until six more sample events are completed. We have continued to sample both inlet and outfall locations on site for Total Aluminum, the results of which are shown in Table 1 of the permit renewal application. Based on the additional sampling results, the facility asks that DWQ remove Total Aluminum as a discharge characteristic as the results are not indicative of potential contamination due to activities at the ROVA facility. The above correspondence with respect to this modification request is included as Appendix E. Additionally, there are two additional documents included in this renewal. Appendix F is a copy of a previous sampling point relocation request to move the sample locations for outfalls 005 and 006. The sampling point relocation request was originally submitted on March 1, 2011, but no response was received. Westmoreland Partners, LLC is requesting permission to move the sample locations for outfalls #5 and #6 from the front side of the drainage basins to the back side of the drainage basins next to the fence line. The attached document includes a detailed explanation of the request and pictures of the two drainage basins with the old and new sampling points for your review. 290 Power Place Weldon, North Carolina 27890 Phone: (252) 536-3200 Fax: (252) 536-4448 Roanoke Valley Energy Facility Westmoreland Partners, LLC If you have any questions please contact me at (252) 536-3200 ext. 230 or Chris Hews at ext. 232. Sincerel , Donald R. eisling President, Westmoreland — North Carolina Power, LLC GP, Westmoreland Partners CC: Fred Silva, NAES Brian Quinney, NAES Chris Hews Sr, NAES Libby Robinson, URS 290 Power Place Weldon, North Carolina 27890 Phone: (252) 536-3200 Fax: (252) 536-4448 STORM WATER PERMIT RENEW APPLICATION Roanoke Valley Projects I & II Submitted to: North Carolina Department of Environment and Natural Resources Division of Water Quality Storm Water and General Permits Unit 1617 Mail Service Center Raleigh, NC 27699 Prepared by. URS Corporation 1600 Perimeter Park Drive, Suite 400 Morrisville, NC 27560 On Behalf of.• Westmoreland Partners, LLC Roanoke Valley Projects I & II 290 Power Place Weldon, NC 27890 December 2011 TABLE OF CONTENTS Section page I. Permit Renewal Application Form........................................................................ I II. Supplemental Information...................................................................................... l A. Current Site Maps................................................................................................ I B. Summary of Analytical Monitoring..................................................................... 2-4 Table 1 C. Summary of Qualitative Monitoring.................................................................... 5-8 Table 2 D. Summary of Best Management Practices............................................................ 9 i. Indoor Storage.................................................................................................. 9 ii. Secondary Containment................................................................................... 10 iii. Primary Containment....................................................................................... 11 iv. Loading/Unloading/Conveying Activities....................................................... 11 v. Containment and Contact Management........................................................... 12 vi. Preventive Maintenance and Good Housekeeping .......................................... 13 vii. New Best Management Practices.................................................................... 13 E. Narrative of Significant Changes......................................................................... 14 F. Certifications........................................................................................................ 14 i. Development and Implementation of Storm Water Pollution Prevention Plan 14 Appendices A. Permit Renewal Application Form B. Checklist of Required Supplemental Information C. Current Site Maps D. Storm Water Pollution Prevention Plan Development and Implementation Certification E. 2009 Correspondence Regarding Total Aluminum Benchmark F. Sampling Point Relocation Request for Outfalls 005 and 006 Roanoke Valley Projects I & H December 2011 Page Storm Water Permit Renewal Application I. Permit Renewal Application Form The completed Permit Renewal Application Form can be found in Appendix A. II. Supplemental Information This section contains the Supplemental Information requested. A complete checklist of required supplemental information can be found in Appendix B. A. CURRENT SITE MAPS List of Drawings that can be found in Appendix C: • RVEF Site Drainage Map • Structures and Area Drainage Plan — RVP I & RVP II • Site Plan — RVP I & RVP II • Aerial Photo of Inlet and Outfall Locations B. SUMMARY OF ANALYTICAL MONITORING Analytical monitoring was performed semi-annually throughout the permit term as specified in the schedule shown in Table 2 of Part II Section B of the permit. Analytical monitoring is conducted for the following parameters: • Chemical Oxygen Demand (COD) • TSS • Total Aluminum • pH Additionally, storm event data (total rainfall in inches, and rainfall event duration in minutes) was collected for each sample. Monitoring results are compared to the benchmarks shown in Table 3 of Part II Section B of the permit. The monitoring results and benchmarks are summarized in the following table. As this permit renewal application must be submitted prior to conducting the final analytical monitoring (due Spring 2012), these results will be submitted to NC DWQ within 30 days of receipt of the laboratory results. Roanoke Valley Projects I & II December 2011 Page I .w .n ti O� ti O � O rl O p O ti p p O ^ ti N z (L ^O ry O O 0^ O^ N L en C A Q O Hd3 � a d a n pp M R S N M S OO M O O M N V� M N O � 0 N ^ N Vl Vi N O Op O 07 N V N o p CO Q 0 U#### C C O Q LO U#### C G C 0000 �; w a ^ ^0000 w w 2 q� V off h 9 O O O O O N W O W p .�- N W N O ti•r N O W n'i •--. ti � O � O p O O W .. iD oo O N W ti N d' O b M z h M N ^. V z� a� M �D 4 ^1 ti h 1� h 1p CD O M p p O O O ti O ti N Z Obi oN0 h N ti 000 N N ao r r� r ao R @ N � d O O W _R C r oo O O N H;3 a >o Y VJ 4 O p a d a 00 O O N N i0 l0 b N N M R Q � h O N O M S N M W V O N M O O� rr O � C " y C F �" � cCq 9 Storm Water Permit Renewal Application On February 9, 2009, Westmoreland Partners, LLC, submitted a permit modification to request the removal of Total Aluminum as a benchmark discharge characteristic. In a response letter dated March 24, 2009, the Division of Water Quality (DWQ) requested that six more sample events be completed prior to making a determination. We have continued to sample both inlet and outfall locations on site for Total Aluminum, the results of which are shown in Table 1 above. Based on the additional sampling results, the facility asks that DWQ remove Total Aluminum as a discharge characteristic as the results are not indicative of potential contamination due to activities at the ROVA facility. The above correspondence with respect to this modification request is included as Appendix E. C. SUMMARY OF QUALITATIVE MONITORING As required, qualitative monitoring was performed twice per year, once in the spring and once in the fall, for each outfall. The results are summarized in Table 2 below. Roanoke valley Projects I & II December 2011 Page 4 C D �., z z z z z Z z z z z z u � O CC C C C ys. 'Op O O C C C C oW o z v z z z z z z z z z a s CC C C C C C C C C C O= O z O z O z O z O z O z O z O z O z O z O z ca CC C C C C C C C C G L C w O z O z O z O z O z O z O z O z O z O z O z 7 d QC C C G p C Q C `" q U O O O O O O O O O O O z z z z z z z z z z h ttl N CE N C a) C N C U C d C N C a) C N C N C U C o z 0 2 0 z 0 z 0 2 0 z 0 2 0 z 0 z 0 Z 0 z �d y 'c7 jz� m ^' O O O O z O ^''`�'z z Rou ul u u u UM u v a O CE C C C C C C C 9 O Q O O O O O O O C O C O o z z z z z z z z z z 2 C g 2 c o 2 E _ 4 o W .� U .c F" '�.. .0 F U a s U U N N N d O V N N U U V N N U d m c U c U o N N O N O O O O O O O O O O O C D z z z z z z z zz y u G 3 w o 0 0 0 0 C C C C G z z 0 z 0 z 0 z 0 z 0 z 0 z a 0 3 O o o O o o O p z z z z z z z z a G q C C C C 0 C G G W zz z z z z z zC y 0 0 C C G GC C C C C q q Z Z Z z Z Z Z Z O OL O C C G C C C O O O O z O z O z O z O z O z O z O z � v y R G N W is y O^ � z z � �z T � U �U O d a O C C CC C C C C C C C o z z O z o z O z O z O z O z o z O z o z Z O L L L L L L L v v y v V N N N y V N N N H V N N N w U o U e U N E Q7tO� ON G V M G O d y u a O O O O O O O O O fi O oWo z z z z z z z z z a z 0 o a e m� o 0 y 0 m 0 d 0 v 0 m 0 m o w d o z z z z z z z z z a z s y G co a C 0 c c o 3 c L w O z O z O 0 z O z O z O z O z O z O zuz z _ 0 0 0 0 r 0 0 0 o °s z z z z z z z 0 z z4 z o w E 0 0 0 0 0 0 0 0 0 0 z z z z z z z z z w z v 'O 7 M N N N N M N 30 M a 04 i T y d vj .p bd A 7 z �F � 2 ;E 2 0 z G r N ^ R 3 00 N M N b z U U V U v a O C C C C C C C O O z z z z z z z z o z z C � q N � y c of II s o c c � IIp —°e ami � at°i d v � .a q `� G � ° � ❑ '9 U U U �� F• � I.. U o z a O m y O N N N p rI O ) § * 3 * ; z z 2 0 \\�\ z z ) \}/\ {` §\k{ c \\\� ]' z z z } } z \\}\ \ I■ ) / ) ; \ f� yEua ` 4 !]]\ 2 7 zo lz _& z « ;! f� ;3©®]\} 3 0 ,)] < § 3}7 z z \ ! ) ® ! _ ) 0 \\�\ \}/\ §\k{ 0 \\\� ]77k \ \\}\ \ ® !=m \\() \ yEua ` 4 Storm Water Permit Renewal Application D. SUMMARY OF BEST MANAGEMENT PRACTICES The Roanoke Valley Projects I & II (RVP I & II) use many Best Management Practices (BMP) throughout the entire plant site for both power generating units. The most appropriate BMP, or combination of BMP, was selected for a specific area, based on the desired pollution prevention purpose and the practicality of its use. In most cases, the same BMP utilized at Unit I was utilized at Unit II. The following is a brief summary of the types of BMP used in various plant areas and the intended purpose. L Indoor Storage Where possible, the plant chemicals are located within designated buildings to avoid contact with storm water. Since the buildings' design includes perimeter curbing, the inside area is contained. In addition, the buildings have sumps to contain small spills that may occur. The following describes the various buildings: The Cooling Tower Chemical Buildings store the cooling tower chemicals. The buildings are curbed, have roll -up doors and ramps for inside loading and unloading activities, and floor sumps to contain small spills and facilitate cleanup activities. • The Demineralizer Building does not currently contain chemicals. In the past, chemicals were used to pre -treat the water to the proper boiler feedwater quality. Since filtration is used to treat the water to the proper quality, chemicals are no longer needed, used or stored. Because chemicals were once stored in this building, the building design includes a sloped floor to direct spills to the trench -type floor which is routed to the coal pile pond. • The Boiler/Turbine Generator Buildings also contain the boiler feedwater chemicals, miscellaneous chemical tanks, including; cleaners, maintenance chemicals, lubricants and hydraulic oils. Also located within the buildings are small oil storage tanks for, boiler feed pump oil reservoirs, auxiliary generator, and self-contained steam turbine lube oil system. The boiler feedwater chemicals are placed on a specified curbed skid. The chemicals and oils within these buildings are in secondary containment, either permanent or portable units. The fire protection pump diesel engine tank is located in the pump station, and is within a concrete containment. Roanoke Dalley Projects I & II December 2011 Page 9 Storm Water Permit Renewal Application • The coal pile pond treatment chemicals are located in the Pond Area Treatment Shed. The chemicals are stored in polypropylene tanks, and on occasion, specific chemical barrels are stored in the building if needed for treatment. The polypropylene storage tanks have been installed and piped up in the same fashion as stationary tanks. The building is curbed for spill containment. • The Used Oil Area is located in a 3 -sided covered structure that is contained by a concrete floor, perimeter curbing and ramped access for inside loading and unloading activities. • Warehouse Sheds and Maintenance Warehouse Buildings house maintenance materials and spare parts. The structures are fully enclosed and have curbed foundations to contain spills. ii. Secondary Containment If it is not practical for the chemicals to be stored indoors, the chemical storage tanks are located outside, designed with secondary containment to contain the contents of the tank, with additional sufficient freeboard for precipitation. Each containment area is of the proper material for its use and is capable of collecting and holding spills, leaks, and a storm event. The concrete containment structures have a holding capacity equal to 10 % of the volume of all containers or 100% of the volume of the largest container, whichever is greater. The base of each concrete containment area is free of cracks or gaps, and sufficiently impervious to leaks, spills and rainfall. The permanent containment structures used are constructed of concrete floors and side-walls and the portable containment units used are of a plastic (polypropylene) material. All indoor and outdoor chemicals are located within either a permanent containment structure or a portable containment unit. Only a few chemical/oil tanks are located outside; these include the following tanks: • The sulfuric acid tanks, limestone storage vessel, and the urea tank (RV II only) are located outdoors. All of these tanks are contained separately using concrete containment structures, sized to contain 100% of each tank, with capacity for precipitation. • The main oil storage tank is located outside. It is located in a concrete containment dike sized to hold 100% of the tank volume, as well as capacity for precipitation. • The induced fan (ID) lube oil reservoirs are located outdoors. Each of the three lube oil skids has self-contained reservoirs which are surrounded by a concrete dike containment. Roanoke Valley Projects I & 11 December 2011 Page 10 I Storm Water Permit Renewal Application • The electrical transformers are equipped with cooling oil reservoirs that contain Type I oil. RVP I & II has a total of ten transformers. All transformers are located outdoors and are surrounded by concrete diked containment. Each dike is filled with rock for fire protection and has a sump in one corner. The dikes are sized to contain 100% of the reservoir volume plus one -inch of precipitation. iii. Primary Containment The coal handling and storage area was designed to be "controlled and separated" from the other areas of the plant. Since this coal area is considered a "contact' area, all rain water runoff from this designated handling and storage area is collected and routed into the coal pond for containment, detention, and treatment prior to discharge as allowed per the Pretreatment Industrial User Permit. The pond is split into two sections to facilitate maintenance. The pond is sized for a 24 -hr, 10 -year storm, with sufficient freeboard for containing normal rain events. iv. Loading /Unloading/Conveying Activities For all the chemicals, oils, and materials handled at the plant, specific loading and unloading procedures have been developed and continue to be implemented to minimize the possibility of spill events and prevent possible pollution exposure. These include using guard posts, flexible hoses, valve sequence, activity supervision, storm drain covers, automatic flow shutoff valves, and local and remote high level alarms. The same procedures are followed for the materials, oils, and chemicals located within the various buildings. Because the loading/unloading activities are performed within the building, the potential for exposure of storm water to pollution is further reduced. The coal, limestone, and ash handling systems are controlled to mitigate fugitive emissions that could allow the material to come into contact storm water. The following BMP are used to limit exposure: • A water and surfactant mixture can be sprayed at several points in the coal • unloading and conveying systems to moisten the coal to minimize the fugitive emissions. • The coal silos, lime surge bin and silos, fly ash receiver, ash recycle silo and flyash silos use bin vent filters to control particulates. All coal handling and conveying operations are enclosed. • Limestone is conveyed pneumatically in a closed system. Roanoke Palley Projects I & H December 2011 Page 11 Storm Water Permit Renewal Application • All silos and surge bins have been provided with fabric filters and dedicated fans to further reduce fugitive dust emissions into the atmosphere, therefore, reducing contact with storm water. • Ash is loaded into the ash trucks from the ash silos. The ash can be sprayed or conditioned to the correct moisture content to minimize fugitive emissions during the activity. The ash silos are equipped with curtains to also assist in controlling ash emissions along with a misting halo around the discharge chute. The paved area surrounding the designated ash loading/unloading area is cleaned after the activities are completed. This area is curbed and the drainage does not commingle with "non -contact' drainage areas. v. Containment and Contact Management Procedures have been developed and implemented to inspect collected storm water in secondary containment areas. Storm water that accumulates in the containment areas is visually inspected as required in the Storm Water Permit and Storm Water Pollution Prevention (SWPP) Plan prior to the release of the collected water. If the accumulated storm water is determined to meet the visual permit limits, it is released through a normally closed manual valve. If the collected storm water appears to be contaminated, the liquid is pumped using a manual pump into 55 -gallon drums, properly labeled and stored with other liquids until it can be recycled or properly disposed. Each release from the containment is recorded as required per the Storm Water Permit and the records are kept on file at the plant. Areas where potential material contact can occur, such as ash area, Flue Gas Desulfurization (FGD) system area (which consists of limestone and lime slurry used for emission control of the flue gas) are curbed to contain, separate and minimize flow into non -contact drainage areas. If materials are spilled in these concrete curbed areas, clean up is performed immediately to limit exposure to storm water. The facility was designed with separate drainage systems, non -contact and contact. The non -contact drainage systems route "non -contact' storm water to the storm water outfalls. The contact drainage areas route storm water, which could potentially be exposed to contaminants, to the appropriate treatment system (i.e. the station sump for oily water separation or the coal pile detention pond for sedimentation, clarification and pH adjustment) prior to discharge per the Industrial User Pretreatment Permit. The drainage systems do not commingle. Visual inspections are performed to ensure that "contact' storm water and/or process wastewater is not discharged into the storm water outfalls. Roanoke Valley Projects I & II December 2011 Page 12 Storm Water Permit Renewal Application vi. Preventive Maintenance and Good Housekeeping The facility uses a maintenance -tracking software program (MAXIMO) to schedule and perform routine and non -routine maintenance activities. Storm water inspection and maintenance activities and schedules, as required by the Storm Water Permit and the SWPP Plan, have been programmed into the MAXIMO Program. The ability for tracking special design modification projects, such as the wastewater drainage improvements project performed at the plant, is also a valuable function of this program. Most of the areas throughout the plant are paved, using concrete and asphalt. The paved areas facilitate and expedite clean up activities by using on-site equipment. Daily inspections are performed to ensure a "clean" plant and reduce the potential for pollutants entering the storm water conveyance system and flowing off-site. Common sense is also implemented; this includes the following: • store containers indoors and in an orderly fashion, • keep surfaces clean and free of chemicals and oils, • properly dispose of rags and towels, • sweep dry chemicals, and • clean up small liquid accumulations on the floor or ground. Drainage structures, dikes, ditches and storm water outfalls are inspected to ensure that there are no obstructions by sediment or debris. vii. New Best Management Practices The following are BMPs that have more recently been implemented at ROVA: • filter dams consisting of crushed stone were installed at Inlets A and B to reduce sediment from flowing onto the site, • filter socks were installed in blue drains by ash silos and coal crushers to reduce particulate, and • new sampling platforms were installed at all outfalls to provide better and safer access. Roanoke Valley Projects I & 11 December 2011 Page 13 Storm Water Permit Renewal Application G. NARRATIVE OF SIGNIFICANT CHANGES There were no significant changes in industrial activities at the permitted facility. H. CERTIFICATIONS The signed certification of Storm Water Pollution Prevention Plan Development and Implementation can be found in Appendix D. Roanoke Dalley Projects I & II December 2011 Page 14 APPENDIX A Permit Renewal Application Form 3Of W. Permit Permit Coverage _ e�Renewal Application Form �. National Pollutant Discharge Elimination System Permit Number Stormwater Discharge Permit NCS009229 The following is the information currently in our database for your facility. Please review this information carefully and make all corrections/additions as necessary in the space provided to the right of the current information. Owner Affiliation Information * Reissued Permit will be mailed to the owner address Owner/ Organization Name: Owner Contact: Mailing Address: Phone Number: Pax Number: E-mail address: Westmoreland - L O & E Parmers Mr. Don Keisling 290 Power PI Weldon, NC 27890 (252)536-3200 Facility/Permit Contact Information Facility Name: Roanoke Valley Energy Facility Facility Physical Address: 290 Power PI Weldon, NC 27890 Facility Contact: Mailing Address: Phone Number: Fax Number: E-mail address: Discharge Information Receiving Stream Stream Class: Basin: Sub -Basin: Number of Outfalls: Roanoke River Roanoke River Basin 03-02-08 .41111111 F43MIqtr Impaired Waters/TMDL Does this facility discharge to waters listed as impaired or waters with a finalized TMDL? O Yes Jd No ❑ Don't Know ( for information on these waters refer to hitp://h2o.enrstate.nc.us/su/Impaired Waters_TMD/J ) CERTIFICATION I certify that I am familiar with the information contained in the application and that to the best of my knowledge and belief such information is true, complete and accurate. Signature Date I ZI Z-7 12611 ➢prlald ietslmh t�testden� V3esh�twl�td-+�CPat� (u Print or type name of person sig mg above Title C l'r W -e S�'f11 W i2'r.p( Pyq-}tie, Please return this completed renewal application form to: Stonnwater Permitting Unit Attn: Brian Lowther 1617 Mail Service Center Raleigh, North Carolina 27699-1617 APPENDIX B Checklist of Required Supplemental Information SUPPLEMENTAL INFORMATION REQUIRED FOR RENEWAL OF INDIVIDUAL NPDES STORMWATER PERMIT Two copies of each of the following shall accompany this submittal in order for the application to be considered complete: (Do not submit the site Stormwater Pollution Prevention Plan) Initials 1 div 1. A current Site Map from the Stormwater Pollution Prevention Plan. The location of industrial activities (including storage of materials, disposal areas, process areas and loading and unloading areas), drainage structures, drainage areas for each outfall, building locations and impervious surfaces should be clearly noted. ' 2. A summary of Analytical Monitoring results during the term of the existing permit (if your permit required analytical sampling). Do not submit individual lab reports. The summary can consist of a table including such items as outfall number, parameters sampled, lab results, date sampled, and storm event data. H 3. A summary of the Visual Monitoring results. Do not submit individual monitoring reports. The summary can consist of a table including such items as outfall number, parameters surveyed, observations, and date monitoring conducted. 4. A summary of the Best Management Practices utilized at the permitted facility. Summary should consist of a short narrative description of each BMP's in place at the facility. If the implementation of any BMP's is planned, please include information on these BMP's. `AdU� 5. A short narrative describing any significant changes in industrial activities at the permitted facility. Significant changes could include the addition or deletion of work processes, changes in material handling practices, changes in material storage practices, and/or changes in the raw materials used by the facility. '12J� 6. Certification of the development and implementation of a Stormwater Pollution Prevention Plan for the permitted facility (Sign and return attached form). If the final year analytical monitoring of the existing permit term has not been completed prior to filing the renewal submittal, then the last years monitoring results should be submitted within 30 days of receipt of the laboratory reports. (i.e. do not withhold renewal submittal waiting on lab results) APPENDIX C Current Site Maps E c U O ■ • - w L G C 7AX.J APPENDIX D Storm Water Pollution Prevention Plan Development and Implementation Certification ATER POLL NU41OPT RUIN North Carolina Division of Water Quality — Stormwater Permitting Unit Facility Name: Roanoke Valley Energy Facility Permit Number: NCS000229 Location Address: 290 Power PI Weldon, NC 27890 County: Halifax "I certify, under penalty of law, that the Stormwater Pollution Prevention Plan (SPPP) document and all attachments were developed and implemented under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information required by the SPPP. Rased on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information gathered is, to the best of my knowledge and belief, true, accurate and complete." And I certify that the SPPP has been developed, signed and retained at the named facility location, and the SPPP has been fully implemented at this facility location in accordance with the terms and conditions of the Stormwater discharge permit." And "I am aware that there are significant penalties for falsifying information, including the possibility of fines and imprisonment for knowing violations." s Signature — DonzlC{ V,, slI Print or type name of person signirlg'above Date t z I`Z 7l Z6lI preg,de„+,tic Pow¢, -,t ( Tale 6fW25fMUT2lzna(PLrj1.Oz SPPP CaooarsM 5/09 APPENDIX E 2009 Correspondence Regarding Total Aluminum Benchmark Roanoke Valley Energy racility Westmoreland Partners, LLC Febivaty 9, 2009 Mr% Bradley Bennett Stormwater Permitting Unit Supervisor NC DNER Division of Water Quality 1617 Mail Service Center Raleigh, North Carolina 27699-1617 RE: Request for Permit Modification Westmoreland Partners, LLC NPDES Permit No., NCS000229 DearMr. Bennett On behalf of Westmoreland Partners, LLC, the purpose of this letter is to request a permit modification for the Roanoke Valley Energy Facility (ROVA) located at 290 Power Place, Weldon, North Carolina. Ms, Brittany Robinson of URS Corporation spoke with Ms. Bethany Georgoulias ofDWQ in December regarding this request„ Table .3 of the facility's NPDES Permit, requires that samples be tested for Total Aluminum and compared to a benchmark. It is noted that "the benchmark values in Table 3 are not permit limits but should be used as guidelines for the permittee's Stormwater Pollution Prevention Plan (S WPPP).. The permittee shall evaluate the sources of any benchmark exceedances and evaluate the effectiveness of any site BMPs. The permittee shall review and/or update the SWPPP and document any efforts to address stormwater contamination." Samnline Results Sampling for Total Aluminum began in the Fall of'2007. After the first sampling event, it was noted that the results at all outfalls were above the benchmark limit of'035 ppm, with some locations above the benchmark for COD and TSS. Corrective actions were taken and since the first sampling event, the results for all other benchmark characteristics (pH, COD and ISS) have been below their respective benchmarks while Total Aluminum remains above its benchmark. In addition to improving the effectiveness of BMPs, the facility also decided to test upstream samples (prior to exposure to industrial activities at ROVA) for Iotal Aluminum. Testing through 2008 shows that results for Inlet Samples #1 and #2 are consistently above the benchmark. Also, results for Outfall #4 have decreased dramatically, which is the location that has the highest potential for Total Aluminum due to coal fly ash loading in this drainage area Iable I summarizes all results with ones above the benchmark shaded in gray, Roanoke Valley Energy Facility Westmoreland Partners, LLC Table 1: Total Aluminum Results (ppm) Date _101512007 2/22/2008 1412812008 11117_12008 Inlet # 1 4.56 1.51 0.776 Inlet # 2 _ 3.14 1.79 5.08 Outlet #3 _ _ 7.1 1,94.` 2.21 ` Outlet # 4 12 - _ 0.237 0.238 _Outlet # 5 _ 2.5 4.49 1.11 Outlet # 6 1.5 _ 4.42 Benchmark for Total Aluminum is 0.75 ppm. In an effort to better understand the characteristics of the stormwater coming on-site, the facility also tested upstream samples for iron during an October 2008 sampling event. The results in Table 2 show that iron is above the typical benchmark of 1 •.0 ppm. Table 2: Iron Results (ppm) of averaged duplicate samples (Inlet 1: Modification Re uest Based on these observations, the facility asks that DWQ remove Total Aluminum as a discharge characteristic as the results are not indicative of potential contamination due to activities at the ROVA facility. "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." Thanks in advance for your consideration. If you have any comments or questions, please contact W. Chris Hews of my staff at 252-5.36-3200 x 232 Sincerely, �`r C Donald R. Keisling General Manager and Director of Operations Roanoke Valley Energy Facility Roanoke Valley Energy Facility Westmoreland Partners, LLC CC: DWQ - Regional Office (2) copies Fred Silva, NAES Biian Quinney, NAES Cluis Hews Sr„ NAES Brittany Robinson, URS Roanoke Valley Energy Facility Westmoreland Partners, LLC March 19, 2009 Myrl Nisely Environmental Chemist Division of Water Quality North Carolina Department of'Environment and Natural Resouces 1628 Mail Service Center Raleigh, North Carolina 27699-1628 Re: Aluminum in Storm Water Dear Mr. Nisely, Per your phone request on March 19, 2009,1 am sending you a site layout with the locations of the outfalls and Inlet sampling points indicated. I am also sending you a map of the drainage areas in the plant which shows the areas for each outfall and a previous sampling we did on just the inlet run-on sites February 22, 2008. On the February sampling the #3 inlet showed a level of 19..8 mgll for Aluminum, yet on subsequent samplings it was even within permit limits.. This is why it is almost impossible to keep the outfalls within limits and why we are requesting that Aluminum be removed.. In out letter to request the change we indicated that Iron is also running high in this area in the oncoming flows.. Ihis will hopefully aide in our decision should you choose to monitor for a different metal.. Respectfully, Chris E. Hews Sr.— _..._. Environmental Manger Roanoke Valley Energy Facility 290 Power Place Weldon, North Carolina 27890 Phone: (252) 536-3200 Fax: (252) 536-4448 Client Sample Marks: DAY 1 INLET#1 RUN ON Microbac Laboratories, Inc. Sample Collection Date: 2/22/2008 SOUTHERN TES'TOVO & RESEARCH DIVISION Matrix: WW .3809AIRPOR7 DRIVE, NW t WILSON, NC 278968649 CAT No. ANALYSES (252) 277-4175 (252) 237-9341 (%ax) ANALYZED by POL RESULT UNIT www. southerntestingcorn REPORT Of ANALYSIS SAMPLE No: T1701-001 / A857923 EP 001 Digestion(ICP/FAAS) Date Reported: Thursday, March 06, 2008 CHRIS HEWS EW -007-13 Chemical Oxygen Demand ROANOKE VALLEY ENERGY 2/27/2008 AJF 10 23 8 mgt 290 POWER PLACE Phone / Fax: 252-536-3200/252-536-4448 W ELDON NO 27890 P 0: 2080220 Client Sample Marks: DAY 1 INLET#1 RUN ON Sample Collection Date: 2/22/2008 11:31:00 AM Matrix: WW Lab Submittal Date: 2/25/2008 1:40:00 PM Classification: E CAT No. ANALYSES METHOD ANALYZED by POL RESULT UNIT EM 013-L Aluminum (ICP) EPA 200 7 3/5/2008 GAR` 0 010 4 56 mg/L. EP 001 Digestion(ICP/FAAS) EPA 2007 2/27/2000 DJS Yes EW -007-13 Chemical Oxygen Demand HACH 8000 2/27/2008 AJF 10 23 8 mgt Sample Comments: w ed dnd Approved by: ZR L helm'Innant Manager, Analytical Sciences Department Page 1 of 8 _ Admin 3/6/2008 10:47:45 AM Wilson Division - NCO0120 Certification: Drinking Water #37708 Wastewater #21 - (-G) Greensboro Division - NCO01754 Certification: Drinking Water #37795 Wastewater #637 Forany feedback conceming our services, please contact Rob Denner, Managing Director, at rdermerOmicrobao com, or Trevor Boyce, President, at president®microbac cam Chemical and Microbiological Analysis: Environmental • Agrochemical •Foods • Pharmaceuticals I' Microbae Laboratories, Inc. Matrix: SOUTHE'RNTES77NC&RESEARCH DI VISION 3809AIRPORTDRIVE; NW e WLSON, NC 27896-8649 E (152)137-4175 (252) 237-9341(fax) CAT No. ANALYSES WWW. southernte51U7$.com REPORT Of ANALYSIS SAMPLE No: T1701.002 / AB57924 _ Date Reported: Thursday, March 06, 2008 CHRIS HEWS - ROANOKE VALLEY ENERGY DJS Yes 290 POWER PLACE Phone / Fax: 252-53&3200/252-536.4448_ WELDON NC 27890 P O: 2080220 Client Sample Marks: DAY 1 INLET#2 RUN ON Sample Collection Dale: 2/22/2008 11:23:00 AM Matrix: WW Lab Submittal Date: 2/25/2008 1:40:00 PM I Classification: E CAT No. ANALYSES METHOD ANALYZED by POL RESULT' UNIT EM -013L Aluminum (ICP) EPA2007 3/5/2008 GAR 0010 314 mg/L. EP -001 Digestion (ICP/FAAS) EPA 200 7 2/27/2000 DJS Yes EW -007-G Chemical Oxygen Demand _ HACH 8000 2(27/2008 AJF 10 <10 mg/L Sample Comments: _. __.._...__. R[�(i Land keproved by: — SF1'etra"Hinnant Manager, Analytical Sciences Department Page 2 of 8 _ Admin 3/6/2008 10:47:45 AM Wilson Division - NC00120 Certification: Drinking Water #37708 Wastewater #21 (•G) Greensboro Division - NCO01754 Certification: Drinking Water #37795 Wastewater 9637 For any feedback concerning our services, please contact Rob Dermer, Managing Director, - at rdermeriti?mfcrobac com, or Trevor Boyce, President, at president ®mforobac cam . Chemical and Microbiological Analysis: Environmental • Ancehemical • Foods • Pharmaceuticals I Sample Comments: Re ' d and Approved by: hinnant-11 Manager, Analytical Sciences Department Page 3 of 8 Admin 3/6/2008 10:47:46 AM Wilson Division - NCO0120 Certification: Drinking Water #37708 Wastewater #21 (-G) Greensboro Division - NCO01754 Certification: Drinking Water 437795 Wastewater #637 For any leedback concerning our services, please contact Rob Denner, Managing Director, at rdermer@microbac com, or Trevor Boyce, President, at president microbac corn Chemical and Microbiological Analysis: Environmental • Amnchemical • Foods • Pharmaceuticals i Microbac Laboratories, Inc. SOUTIIERY TESTING & RESEARCH DIVISION 3809AIPPORT DRIVE; NIP . WILSON, NC 278968649 (252)2;7.4175 (252)237-9341(f") W1t+1Y.5outherntesting. cont REPORT of ANALYSIS SAMPLE No: T1701-003 / AB57925 _ Date Reported: Thursday, March 06, 2008 CHRIS HEWS — — ROANOKE VALLEY ENERGY 290 POWER PLACE Phone / Fax: 252-536-3200/252-536-4448 _. WELDON NC 27890 P 0.: 2080220 Client Sample Marks: DAY 1 INLET#3 RUN ON Sample Collection Date: 2/22/2008 11:15:00 AM Matrix: _ WIN Lab Submittal Date: 2/25/2008 1:40:00 PM Classification_ E CAT No. ANALYSES METHOD ANALYZED by POL RESULT UNIT EM -013-1. Aluminum(ICP) EPA2007 3/5/2008 GAR 0010 198 mg/L EP -001 Digestion(ICP/FAAS) EPA 2007 2/27/2000 DJS Yes i EW -007-G Chemical Oxygen Demand MACH 8000 2/27/2008 AJF 10 51 3 mg/L Sample Comments: Re ' d and Approved by: hinnant-11 Manager, Analytical Sciences Department Page 3 of 8 Admin 3/6/2008 10:47:46 AM Wilson Division - NCO0120 Certification: Drinking Water #37708 Wastewater #21 (-G) Greensboro Division - NCO01754 Certification: Drinking Water 437795 Wastewater #637 For any leedback concerning our services, please contact Rob Denner, Managing Director, at rdermer@microbac com, or Trevor Boyce, President, at president microbac corn Chemical and Microbiological Analysis: Environmental • Amnchemical • Foods • Pharmaceuticals i APPENDIX F Sampling Point Relocation Request for Outfalls 005 and 006 Roanoke Valley Energy Facility Westmoreland Partners, LLC March 1, 2011 Coleen H. Sullins, Director Division of Water Quality 1617 Mail Service Center Raleigh, North Carolina 27699-16I7 RE: Moving of Sample Locations for Outfalls #5 and #6 on Permit #NCS000229 Roanoke Valley Energy Facility Halifax County Dear Ms. Sullins; On behalf of Westmoreland Partners, LLC, I would like to request permission to move the sampling points for Outfalls #5 and #6 on Permit #NCS000229 from the front side of the drainage basins to the back side of the drainage basins next to the fence line. Permit Condition Part III.D.1. requires that "all samples shall be taken before the discharge joins or is diluted by any other waste stream, body of water, or substance." Currently, the sample locations for Outfall 005 and 006 are located where storm water enters each drainage basin rather than the discharge from the basins at the property boundary. In several cases during qualifying rainfall events, storm water was sampled at the basin inlets, but has not discharged from the site. Therefore, the facility collected and reported results when there was actually no discharge at these sample points. For this reason, the facility proposes to move the sample outfall locations so storm water is collected after the drainage basins and just prior to the discharge leaving the property. This will be a more accurate sample of what is actually leaving the site. Attached are several pictures of the two drainage basins with the old and new sampling points. If you have any questions please contact me at (252) 536-3200 ext. 230 or Chris Hews at ext. 232. Sincerely, Donald R. Keisling President, Westmoreland — North Carolina Power, LLC GP, Westmoreland Partners 290 Power Place. Weldon. North Carolina 27890 Tel: (252) 536-3200 Fax (252) 536-4448 Roanoke Valley Energy Facility Westmoreland Partnere, LLC CC: Fred Silva, NAES Brian Quinney, NAES Chris Hews, NAES Brittany Robinson, URS 290 Power Place. Weldon. North Carolina 27890 Tel: (252) 536-3200 Fax: (252) 5364448 Outfall 005 Proposed and Current Outfall Location Outfall 005 Proposed and Current Outfall Location I Current Outfall Location I T, 3: sem . T �•A 1 Outfall 006 Proposed and Current Outfall Location Fence Line — Property Boundary Where discharge leaves site Proposed Outfall Location 7'n°. v.41 / ,, i'. �,� �✓ iN r yr , � � , Current Outfall Location is Upgradient and not seen on the picture fn h tN 7'n°. v.41 / ,, i'. �,� �✓ iN r yr , � � , Current Outfall Location is Upgradient and not seen on the picture