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HomeMy WebLinkAboutNC0038377_Renewal Application_19960101Carolina Power & Light Company Mayo Electric Generating Plant 10660 Boston Road Roxboro NC 27573 File: 12520 B-1 Mr. A. Preston Howard, Jr., Director North Carolina Division of Environmental Management 512 N. Salisbury Street P O. Box 29535 Raleigh, North Carolina 27626-05354 GOT 24 1996 Subject: Carolina Power & Light Company Mayo Steam Electric Plant National Pollutant Discharge Elimination System (NPDES) Permit No. NCO038377 Dear Mr. Howard: W� The current NPDES permit for Carolina Power& Light Company's (CP&L) Mayo Steam Electric Plant in Person County expires on April 30, 1997 CP&L hereby requests that the NPDES permit::. for this facility be renewed. Enclosed are EPA Forms 1 and 2C (in triplicate) and a check for theme $400 00 application fee. a� The current permit reflects several point sources that discharge stormwater associated with industrial _D activity. These stormwater discharge points were recently permitted (December 29,1995) pursuant to a group application for stormwater. With this current renewal effort, we intend to complete an EPA 2F form. However, due to abnormal meteorological conditions, we have been unable to sample representative stormwater discharges at the outfalls. We will submit the 2F form once we are able to collect the proper samples. In the interim, the information submitted in the group application and reflected in the current permit remains accurate. Also, because of the infrequent discharge (less than once per year) of Discharge Point 001 (Cooling Tower Blowdown to the Lake) no samples could be collected. It is believed that this discharge would be consistent with the natural characteristics of lake water. CP&L appreciates the continued cooperation demonstrated by the NCDEM staff. If the are any questions regarding the information provided, please contact Mr. Ricky Miller at (919)362-3566. Enclosures Sincerely yours, G;" / 4) *i�!� Rodney W. Patefield - Manager Mayo Electric Generating Plant 10660 Boston Road Tel 910 599-0218 Fax 910 597-7415 Carolina Power & Light Company Mayo Steam Electric Plant National Pollutant Discharge Elimination System Permit Number NCO038377 Description of Waste Streams The Mayo Steam Electric Plant is a coal-fired generating plant with one unit rated at a maximum net dependable capacity of 745 MW. No. 2 fuel oil is used for start up and stabilization of the boiler flame. Chemical constituents contained in the discharges from this facility 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 fuel 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 in the discharges. More detailed descriptions of the individual waste streams are presented below. Outfall 001 - Cooling Tower Basin Drain Approximately once per year the cooling tower and circulating water system is drained by gravity to the reservoir to dewater the system for maintenance. That discharge is monitored and reported to the regional office. Outfall 002 - Ash Pond Discharge The ash pond receives ash transport water, coal pile runoff, storm water, cooling tower blowdown, and various low-volume wastes such as boiler blowdown, oily waste treatment, wastes/backwash water from water treatment processes, plant area wash down water, and Page 1 of 3 equipment heat exchanger water. The STP effluent is routed to the ash pond also. The pond provides treatment by sedimentation, oxidation, neutralization, equalization, and adsorption Ash Transport Water - Water for sluicing fly ash and bottom ash to the ash pond is withdrawn from the closed circulating water system. Some fly ash is handled dry by a pneumatic system and is transported off site. The water in the closed circulating water system is treated with a dispersant (acrylic acid polymer) and 1-Bromo-3-chloro-5,5-dimethylhydantoin for protection of the cooling tower fill. Coal Pile Runoff - The coal pile runoff is routed to the ash pond. Flow volumes are related to rainfall frequency and intensity. The annual daily average flow presented previously is based on a coal pile area of 5 acres, an annual average rainfall of 44 inches and a runoff coefficient of 1.0. Cooling Tower Blowdown - Normally, ash transport water withdrawal from the closed circulating water system is sufficient to control total dissolved solids (TDS) in the cooling water. During periods of maintenance, some molybdate waste from the closed cooling water system is routed to the ash pond. Also during periods of maintenance, the cooling tower basin is drained to the reservoir. Low Volume Wastes - Oily Wastes - Drains containing oily wastes or water are routed to the oily waste basin. The discharge from the oily waste basin is routed through the oily waste separator where the oil is removed and contained The treated water is then discharged to the ash pond. The fuel oil unloading area is bermed to prevent accidental release of oil to the reservoir. The fuel oil storage tank is in a containment area with a valved drain. This drain is routed to the oily waste basin. Boiler Blowdown - Boiler make-up water is withdrawn from the lake, treated by various processes and stored in tanks until needed. The boiler water is treated with ammonia and hydrazine Page 2 of 3 continuously when the boilers are in service. Sodium hydroxide is used when needed during abnormal conditions. Boiler blowdown is routed to the ash pond via the low-volume waste conveyance. Water Treatment Wastes - Water is withdrawn from the lake and is treated by clarification, sand filtration, carbon filtration, and demineralization. Various wastes such as filter backwash, and spent regeneration chemicals such as sulfuric acid and sodium hydroxide are routed to the ash pond via the low volume waste conveyance. Miscellaneous - Other miscellaneous sources such as wash down water and water from various plant drains are routed to the ash pond via the low volume waste conveyance. Miscellaneous equipment heat exchanger water can be routed to the ash pond via the alternate cooling tower blowdown line if needed. Sewage Treatment Plant (STP) - Domestic sewage from the approximately 80 employees on site and occasional extra contract maintenance personnel is treated by an extended aeration treatment plant. The plant is designed for 0.0125 MGD and consists of a screen, comminuter, surge tank, aeration tank, clarifier, chlorine contact chamber, and a sludge holding tank. The STP is routed to the ash pond via the alternate cooling tower blowdown line. Page 3 of 3 Carolina Power & Light Company Mayo Steam Electric Plant National Pollutant Discharge Elimination System Permit Number NC0038377 ENCLOSUREI Form 1, Form 2C, and Application Processing Fee ' Please print or type in the unshaded areas only form Approved OMB No 2040-0086 Approval expires 7-31-88 (fill—in areas are spaced for elite type, i.e., 12 characterslrlch). no s FORM U.S. ENVIRONMENTAL PROTECTION AGENCY 1. EPA I.D. NUMBER wo \A,��� GENERAL INFORMATION t:onsohdated Permits Program A. Is this facility a publicly owned tnatmant works F N C 0 0 3 8 3 7 7 GENERAL (Read the "General Instructions" before starting) which results in a discharge to Waters of the U.S.?X GENERAL INSTRUCTIONS 1. EPA I.D. NUMBER X If a preprinted label has been provided, affix (FORM 2A) it in the designated space. Review the inform- ation carefully; If any of it is incorrect, cross 111. FAC LITY AME through it and enter the correct data in the appropriate fill—in area below. Also, if any of the preprinted data is absent (tile arae to the AGILITY v' /oft of the label space lists the information MAILIN ADDRESS Is this a facility which currently results in m" PEASE PLACE LABEL 1N THIS SPACE that should appear), please provide it in the X D. Is this a proposed facility to erthan those described proper fill—in areas) below. If the label is ate and correct, you need not complete p Nmp to waters of the U.S. other than those described in Items 1, III, V, and VI (except VI -8 which in A or B above) which will result in a discharge to must be comp/etad nWrd/essJ. Complete all FACILITY V 1. A or B above FORM 2C Items if no label has been provided. Refer to LOCATION water of the U.S.? (FORM 2D) the instructions for detailed Item descrip- tions and for the legal authorizations under 16 Z, which this data is collected. 11. POLLUTANT CHARACTERISTICS iiiiiiilllllll INSTRUCTIONS: Complete A through J to determine whether you need to submit any permit application forms to the EPA If you answer "yes" to any questions, you must submit this form and the supplemental form fated in the parenthesis following the question. Mark "X" in the box in the third column if the supplemental form is attached. If you answer "no" to each question, you need not submit any of these forms You may answer "no" if your activity is excluded from permit requirements; see Section C of the instructions See also, Section 0 of the instructions for definitions of bald—faced terms crA roan 3bIU-1IRev.10-80) CONTINUE ON REVERSE SPECIFIC QUESTIONS Tcs no rs wrrweow,s� PF SPECIFIC QUESTIONSres wo row'" w7rwe„col A. Is this facility a publicly owned tnatmant works B. Does or will this facility (eftber existing or proposed) which results in a discharge to Waters of the U.S.?X Include a 0011110111111 bill d animall feeding operation or X (FORM 2A) aquatic anlmal production facility which results in a diadlarge to waters of the U.S.? (FORM 2B) Is this a facility which currently results in m" X X D. Is this a proposed facility to erthan those described p to waters of the U.S. other than those described in in A or B above) which will result in a discharge to X A or B above FORM 2C water of the U.S.? (FORM 2D) Z, 16 Z, E Does or will this facility treat, store, or dispose of F. Do you or will you Infect at this facility Industrial or a hazarAouswastes? (FORM 3) X municipal effluent below the lowermost stratum con- X taining, within one quarter mile of the well bore, as 20 !, underground sources of drinking water? (FORM 4) „ ,_ „ G. you or will you Infect this facility any producedH. water or other fluids whichh are broughtht the surface Do you or will you inject at this facility fluids for spe- in connection with conventional oil or natural gas pro- X cial processes such as mining of sulfur by the Frasch X duction, inject fluids used for enhanced recovery of pry, solution mining of minerals, In situ combus- oil or natural gas, or infect fluids for storage of liquidtion of fossil fuel, or recovery of geothermal energy? h drocarbons? (FORM 4) >. ,s ,s 4) 27 !s ,s I. s this facility a proposed stationary source which is J. Is this facility a proposed stationary source which Is one of the 28 industrial categories listed in the in- NOT one of the 28 industrial categories listed in the structions and which will potentially emit 100 tons X instructions and which will potentially emit 250 tons X per year of any air pollutant regulated under the per year of any air pollutant regulated under the Clean Clean Air Act and may affect or be located In an Air Act and may affect or be located in an attain in. attainment area? (FORM 5) w a, .: area? (FORM 5) 1 43 1 so 45 III. NAME OF FACILITY sICIPM A Y O S T E A M E L E C T R I C P ISO L A N T IV. FACILITY CONTACT so I A. NAME & TITLE (last, first. & title) B. PHONE (area code & no ) C 2 P A T E F I E L D R 0 D N E Y M A N A G E R 9 1 0 5 9 9 1 0 2 1 8 V. FACILITY MAILING ADDRESS A. STREET OR P.O. BOX e 3 is 1,0 6 6 0 B O S T O N R 0 A D I It C B. CITY OR TOWN C.STATE D. ZIP CODE 4 1! N,. R 0 X B 0 R 0 - N C 2 7 5 7 3 VI. FACILITY LOCATION C A. STREET" ROUTE NO. OR OTHER SPECIFIC IDENTIFIER 5 1.0.6.6.0. B 0 S T 0 N R O A D re ,• B. COUNTY NAME se P ss E'R S 0 N C C. CITY OR TOWN , D.STATEJ E. ZIP CODE F• g R 0 X B 0 R 0 N C 2 7 5 7 3 crA roan 3bIU-1IRev.10-80) CONTINUE ON REVERSE VII. SIC CODES (4 -digit, in order of pri 1 A. FIRST !. SECOND (specify) (specify) 7 4{9 1 1 ELECTRIC POWER SERVICES C. THIRD 7 D. FOURTH PVil (specify) (specify) 1. OPERATOR INFORMATION F. CITY OR TOWN G.STATIJ H. ZIP CODE IX. INDIAN LAND c g R A L E I G H IN C 11 2 7 6 0 2 Is the faculty located on Indian lands YES ® NO as 16 t{ M Al {• 47 - 51 X. EXISTING ENVIRONMENTAL PERMITS A. NPDES (Discharges to Surface Water) D. PSD (Air Emissions from Proposed Sources) I C T 1 C T � 30 30 A. NAME .the name listed In ` IS 1{ 17 to - H falls 1 17 1 1{ - {o C. RCRA (Hazardous Wastes) E. OTHER (Specify) Item VIII -A also the 1 111[ fe 17, is XI. MAP Attach to this application a topographic map of the area extending to at least one mile beyond property bounderies. The map must show owner? g CAROL INA P OWER & L =GHT COMPANY Electric Utility I This facility is an electric generating plant using coal-fired boilers to produce steam for a turbine generator with a net dependable capacity of 745 MWe. ® YES EDNO ea C. STATUS OF OPERATOR (Enter the appropriate letter into the answer boa, If "Other", specify.) D. PHONE (area code & no.) F = FEDERAL M = PUBLIC (other than federal orstare) P (specifyl S= STATE O- OTHER (specify) A 9 1 0 5 9 9 0 2 1 $ P = PRIVATE u ,a {• - .. {. - :. E. STREET OR P.O. SOX P. O B 0 X 1 5 5 1 u :{ F. CITY OR TOWN G.STATIJ H. ZIP CODE IX. INDIAN LAND c g R A L E I G H IN C 11 2 7 6 0 2 Is the faculty located on Indian lands YES ® NO as 16 t{ M Al {• 47 - 51 X. EXISTING ENVIRONMENTAL PERMITS A. NPDES (Discharges to Surface Water) D. PSD (Air Emissions from Proposed Sources) I C T 1 C T � XIII. CERTIFICATION (see instrocdons) / certify under penalty of law that / have personally examined and am familiar with the information submitted in this application and all attachments and that, based on my inquiry of those persons immediatfidy responsible for obtaining the information contained in the application, / believe that the information is true, accurate and complete. / am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment i 1 A NAME R OFFICIAL TITLE (type orpnnt) B. SIGNATURE C. DATE IGNED Rodney Patefield - Manager /Y��9 / } COMMENTS FOR OFFICIAL USE ONLY 1! 1 ,. - - - 5171 EPA Form 3510-1 (Rev. 10410) Reverse 4 U.S Government Printing Office 1985 - 486-785/32991 30 30 e ulc (Underground Injection ofFluidsJ E. OTHER (Specify) E C1 T I 1C T 1 9 U N/A g 3 4 7 8 R 1 ('pe`�hl) Operation of air cleaning device IS 1{ 17 to - H falls 1 17 1 1{ - {o C. RCRA (Hazardous Wastes) E. OTHER (Specify) q C T 1 c T 1 (specify) 91R91RI INIA. 9 13 1 lf1f7 14 30 1 111[ fe 17, is XI. MAP Attach to this application a topographic map of the area extending to at least one mile beyond property bounderies. The map must show the outline of the facility, the location of each of its existing and proposed intake and discharge structures, each of its hazardous waste treatment, storage, or disposal facilities, and each well where it injects fluids underground. Include all springs, rivers and other surface k water bodies in the map area. See instructions for precise requirements. f XII. NATURE OF BUSINESS (provide a brief descnptron Electric Utility I This facility is an electric generating plant using coal-fired boilers to produce steam for a turbine generator with a net dependable capacity of 745 MWe. XIII. CERTIFICATION (see instrocdons) / certify under penalty of law that / have personally examined and am familiar with the information submitted in this application and all attachments and that, based on my inquiry of those persons immediatfidy responsible for obtaining the information contained in the application, / believe that the information is true, accurate and complete. / am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment i 1 A NAME R OFFICIAL TITLE (type orpnnt) B. SIGNATURE C. DATE IGNED Rodney Patefield - Manager /Y��9 / } COMMENTS FOR OFFICIAL USE ONLY 1! 1 ,. - - - 5171 EPA Form 3510-1 (Rev. 10410) Reverse 4 U.S Government Printing Office 1985 - 486-785/32991 $lease p;Int or type In the unshaded areas only PA LD NUMBER(COpy from Item 1 ofForel 1) NCO038377 r OMB No 20400086 Approval expires 7-31-88 FORM US ENVIRONMENTAL PROTECTION AGENCY n \�/��� APPLICATION FOR PERMIT TO DISCHARGE WASTEWATER L EXISTING MANUFACTURING, COMMERCIAL, MINING AND SILVICULTURAL OPERATIONS NPDES Consolidated Permits Program I. OUTFALL LOCATION For each outfall, list the latitude and longitude of Its location to the nearest 15 seconds and the name of the receiving water A OUTFALL NUMBER /ISf) B LATITUDE C LONGITUDE D RECEIVING WATER (name) 1 Owe 2 YIM 3 SEC t Oa. I MIN 3 SEC 001 36 31 15 78 52 56 Mayo Lake i 002 36 32 03 78 53 27 Mayo Lake 11. FLOWS, SOURCES OF POLLUTION, AND TREATMENT TECHNOLOGIES A. Attach a line drawing showing the water flow through the facility. Indicate sources of Intake water, operations contributing wastewater to the effluent, and treatment units labeled to correspond to the more detailed descriptions In Item B Construct a water balance on the line drawing by showing average flows between Intakes, operations, treatment units, and outfalls. If a water balance cannot be determined (e g., for certain mining activities), provide a plctonal description of the nature and amount of any sources of water and any collection or treatment measures. B For each outfall, provide a description of- (1) All operations contributing wastewater to the effluent, Including process wastewater, sanitary wastewater, cooling water, and storm water runoff; (2) The average flow contributed by each operation; and (3) The treatment received by the wastewater Continue on additional sheets If necessary. 1 OUT- 2 OPERATION(S) CONTRIBUTING FLOW 3 TREATMENT FALLNO (list) a. OPERATION (list) b AVERAGE FLOW (Include units) a DESCRIPTION b. LIST CODES FROM TABLE 2C -I Cooling tower 2 MG/event sedimentation 1-U 001 basin drain oxidation 2-B Low volume waste 1.5 MGD oxidation, sedimentation 2-B 1-U 002 neutralization 2-K Coal pile runoff 0.0135 MGD sedimentation 1-U annual daily average neutralization 2-K Ash transport/cooling tower 3.9 MGD sedimentation 1-U blowdown neutralization 2-K oxidation 2-B absorption 2-A Sewage treatment 0.002 MGD activated sludge 3-A sedimentation 1-U disinfection 2-F OFFICIAL USE ONLY (effluent guidelines sub-cdtegonea) C. =D FROM THE FRONT for storm runoff, leaks, or spills, are any of the discharges described In Items I I -A or B Intermittent or seasonal? YES (complete the following table) ❑ NO (go to Section III) III PRODUCTION A Does an effluent guideline limitation promulgated by EPA under Section 304 of the Clean Water Act apply to your facility? YES (complete Item III -B) ON 0 (to to Section IV) 11:3. Are the limitations in the applicable effluent guideline expressed in terms of production for othermeasure of operationp ❑YES (complete Item III -C) ®NO (go to Section IV) C If you answered "yes" to Item 111-B, list the quantity which represents an actual measurement of your level of production, expressed In the terms and units used in the applicable effluent guideline, and Indicate the affected outfalls. a QUANTITY PER DAY I b UNITS OF MEASURE IV. IMPROVEMENTS 1 AVERAGE DAILY PRODUCTION C OPERATION, PRODUCT, MATERIAL. ETC (specify) 2 AFFECTED OUTFALLS (list outfall numbers) A Are you now required by any Federal, State or local authority to meet any implementation schedule for the construction, upgrading or operation of waste- water treatment equipment or practices or any other environmental programs which may affect the discharges described in this application? This includes, but is not limited to, permit conditions, administrative or enforcement orders, enforcement compliance schedule letters, stipulations, court orders, and grant or loan conditions ❑ YES (complete the following table) ® NO (go to Item IV -B) IDENTIFICATION OFCONDITION,J 2. AFFECTED OUTFALLS 1 4 FINAL COM AGREEMENT, ETC. 3 BRIEF DESCRIPTION OF PROJECT PLJANCE DATE _ E. NO. b. .OVRC. Or DIf CNAR6■rR0- OVIRED JECTED B OPTIONAL You may attach additional sheets describing any additional water pollution control programs (or other environmental projects which may affect your discharges) you now have underway or which ycu plan Indicate whether each program is now underway or planned, and indicate your actual or planned schedules for construction ❑MARK "X" IF DESCRIPTION OF ADDITIONAL CONTROL PROGRAMS IS ATTACHED EPA Form 3510-2C (Rev 2-85) PAGE 2 OF 4 CONTINUE ON PAGE 3. FREQUENCY 4 FLOW a DAYS PER WEEK (specify average) b MONTHS PER YEAR (spectfv average) a FLOW RATE (in mgd) b TOTAL VOLUME (specify with units) C. DUR- OUTFALL NUMBER (115 t) 2 OPERATION(S) _CONTRIBUTING FLOW (list) I LONG TERM AVERAGE 2 MAXIMUM DAILY I LONG TERM AVERAGE 2 MAXIMUM DAILY ATION (in da\s) 001 Draining of cooling tower 1MGD 2MGD 2 basin III PRODUCTION A Does an effluent guideline limitation promulgated by EPA under Section 304 of the Clean Water Act apply to your facility? YES (complete Item III -B) ON 0 (to to Section IV) 11:3. Are the limitations in the applicable effluent guideline expressed in terms of production for othermeasure of operationp ❑YES (complete Item III -C) ®NO (go to Section IV) C If you answered "yes" to Item 111-B, list the quantity which represents an actual measurement of your level of production, expressed In the terms and units used in the applicable effluent guideline, and Indicate the affected outfalls. a QUANTITY PER DAY I b UNITS OF MEASURE IV. IMPROVEMENTS 1 AVERAGE DAILY PRODUCTION C OPERATION, PRODUCT, MATERIAL. ETC (specify) 2 AFFECTED OUTFALLS (list outfall numbers) A Are you now required by any Federal, State or local authority to meet any implementation schedule for the construction, upgrading or operation of waste- water treatment equipment or practices or any other environmental programs which may affect the discharges described in this application? This includes, but is not limited to, permit conditions, administrative or enforcement orders, enforcement compliance schedule letters, stipulations, court orders, and grant or loan conditions ❑ YES (complete the following table) ® NO (go to Item IV -B) IDENTIFICATION OFCONDITION,J 2. AFFECTED OUTFALLS 1 4 FINAL COM AGREEMENT, ETC. 3 BRIEF DESCRIPTION OF PROJECT PLJANCE DATE _ E. NO. b. .OVRC. Or DIf CNAR6■rR0- OVIRED JECTED B OPTIONAL You may attach additional sheets describing any additional water pollution control programs (or other environmental projects which may affect your discharges) you now have underway or which ycu plan Indicate whether each program is now underway or planned, and indicate your actual or planned schedules for construction ❑MARK "X" IF DESCRIPTION OF ADDITIONAL CONTROL PROGRAMS IS ATTACHED EPA Form 3510-2C (Rev 2-85) PAGE 2 OF 4 CONTINUE ON PAGE EPA Form 3510-2C (RPv 2-R9;) PAGE 3 OF 4 CONTINUE ON REVERSE CONTINUED FROM THE FRONT VII. BIOLOGICAL TOXICITY TESTING DATA Do you have any knowledge or reason to believe that any biological test for acute or chronic toxicity has been made on any of your discharges or on a receiving water In relation to your discharge within the last 3 years? MYES (identify the test(s) and describe their purposes below) ❑ No (go to Section VIII) As required by the current NPDES permit, which was effective 2/1/96, two 24 -hr acute toxicity tests have been performed on the ash pond discharge (002). Both 24 -hr static, acute toxicity tests passed and the effluent was above the acute morality of 90%. II CONTRACT ANALYSIS INFORMATION Were any of the analyses reported In Item V performed by a contract laboratory or consulting flrm7 ® YES (list the name, address, and telephone number of, and pollutants analyzed by, each such laboratory or firm below) D No (go to Section IX) A NAME B. ADDRESS C.-T-91LEPHONE D. P 0 L L UTANTS ANALYZED (area code & no ) Ilictl Industrial & Environmental 3000 Weston Parkway Analysts, Inc. (IEA) Cary, NC 27513 IX. CERTIFICATION '(919) 677-0090 i All pollutant analyses reported in Item V were performed by a contract lab except Cl .flow, pH and temp. /certify under penalty of law that this document and aNattachments were prepared under my direction or supervision to accordance with a system designed to assure that quahbed personnel properlygather andevaluate the information submitted. Based on my inquiry of the person or persons who manage the system or those persons directlyresponsible forgathering the information, the information submitted is, to the best ofmyknowledge andbehef, true, accurate, and complete lam aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations A NAME & OFFICIAL TITLE (type or print) B PHONE NO (area code & no ) Rodney Patefield - Manager (910) 599-0218 C SIGNATURE D DATE SIGNED EPA Form 3510-2C (Rev 2-85) PAGE 4 OF 4 PLEASE PRINT OR TYPE IN THE UNSHADED AREAS ONLY You may report some or all of m I of Form 1) ' EPA 1 D NUMBER (copy from Iteform Approved this Information on separate sheets (use the same format) Instead of completing these pages OMB No 2040 0086 NCO038377 SEE INSTRUCTIONS. Approval expires 7 31 88 V. AK AND EFFLUENT CHARACTERISTICS (continued from page 3 of Form2-Cl Ol1T FALL NO )02 PART A - You must provide the results of at least one analysis for every pollutant in this table Complete one table for each outfall See instructions for additional details. 2 EFFLUENT 3 UNITS 4 INTAKE (optional) 1. POLLUTANT (apeclfv if blank) a MAXIMUM DAILY VALUE MAXI M 3 Y VALUE "tH a�ar9agre, c LONG lr� �t (tl aue?E�Ie R VALUE a LONG TERM d NO OF b NO OF (1) (:) MASS (I) a CONCEN- II) CONCENTRATION Ir) MASS a Biochemical CONCENTRATION CONCLNTN ATION (_) MASS 1 CONCENTRATION (_) Mwss ANALYSES TRATION b MASS ANALYSES Oxygen Demand 1 --- (BOD) 1 mg / 1 b. Chemical Oxygen Demand 25 --- (COD) 1 mg / 1 c. Total Organic Carbon (TOC) 3.2 110 1 mg/l lbs/day d Total Suspended Note1 Note (1) Solids (TSS J 22 954 22 8.7 299 8 mg/l lbs/day e. Ammonia (as N) 0.07 --- -;VALUE— 1 mg/l I Flow VALUE VALUE VALUE 4.13 MGD g Temperature VALUE VALUE VALUE VALUE (winter) 9.4 1 °C h Temperature VALUE VALUE VALUE VALUE (summer) 28 MINIMUM MAXIMUM MINIMUM MAXIMUM : ; 1 °C I pH 7.4 8.0 7 STANDARD UNITS PART B - Mark "X" In column 2-a for each pollutant you know or have reason to believe Is present Mark "X" in column 2-b for each believe to be hat which Is limited either directly, or Indirectly but expressly, in an effluent limitations guideline, you pollutant you absent If you mark column 2a for any pollutant must the least column 2a, you must provide quantitative data or an explanation of their provide results of one analysis for that pollutant For other pollutants for which you mark presence In your discharge Complete one table for each outfall Seethe Instructions for additional details and requirements 1. POLLUT- 2 MARK 'x' 3 EFFLUENT 4 UNITS 5 INTAKE (optional ANT AND, 8 eE- b 6E e. MAXIMUM DAILY VALUE b MAXI 1}1M 3 Y VALUE C.LONG T �1 M�Aa�(Re VALUE CAS NO. LIEVE LIEVE1/ al/al{aV.i e LONG TERM �Re (s MASS (1 (Ifeuotle6le) SENT LENT I ( ANO O ({ b[ No OF ANAL- a (-ONCEN- b MASS AVERAGE VALUE CONCENTRATION (3) MASS 1 CONCENTRATION CONCENTRATION (:) MASS YSES RATION ANAL - (f) MASS a Bromide CONCENTRATION YSES (24969.67-9) X < mg/1 b. Chlorine, lbs/da Total Residual X 0.010 .34 1 ppm c. Color X 10 NA 1 cpu d Fecal Coliform X < 5 NA Col. / 1 100 M/1 e Fluoride (16984-48.8) X 0.2 6.9 1 mg/1 lbs/da f N itrate— X lbs/da Nitrite(as N) 0.20 6.9 1 mg/l EPA Form 3510-2C (Rev 2-85) Note (1) Mass calculated using flow of 5.21 MGT) whi rh wa.,, rbP f1 nTa T.71 -,on cmmnl o r -giro,-, CONTINUF ON REVFRSE Tcam %I O /`/'f \ITIAII ICfI FCl T%A. c 1. POLLUT- z MARK 'x' 3 EFFLUENT 4 UNITS 5 INTAKE (optional) ANT AND CAS NO. a HE- IevE b eE- IEveo 8 MAXIMUM DAILY VALUE b MAXIM M 3o DpY VALUE I °Valla Die C.LONG T��jjiiM (!/aaallable/ - ��jj ��((�RtG�i VALUE d NO OF e. CONCEN- a ONG AVERAGE TERM VALUE NO OF ANAL- /!(auaJlable PRE- •ENT AB- SENT ANAL- YSES TR ATION b MASS Y$E$ ll CONCENTRATION 2 MASS ( ) CONCENTRATION (2) MASS CONCENTRATION (Z) MASS 1 CONCENTRATION (2) MASS g Nitrogen, Total Organic X 40.22 --- 1 mg/1 (ae N) h. Oil and Groom X 5 --- 8 Mg/1 1. Phosphorus (asp), Total X 0.058 2.0 1 mg/1 lbs/day (7723-14-0) J. Radioactivity (1) Alpha, Total X < 3.23 1 pCi/1 (2) Seta, Total X 10.9 1 pCi/1 (3) Radium, Total TESTINIC & REPORTING NOT REQUIRED (4) Radium 226, Total TESTINC & REPORTING NOT REQUIRED k. Sulfate (as804) X 69 2,376 1 mg/1 lbs/day (14808-79-8) 1. Sulfide (ds 19) X < 1 --- 1 Mg/1 m. Sutf Ito (as s03) X < 2 --- 1 Mg/1 (14286-46-3) n.Surfact.nts X 0.025 1 mg/1 o. Aluminum, Total X 440 15.155 1 Ug/1 lbs/day (7429-90-5) p. Barium. Total X < 500 --- 1 ug/1 (7440-39-3) q. Boron. Total X 0.48 16.5 1 mg/1 lbs/day (7440-42-8) r. Co t, Total X < 0.05 --- 1 Mg/1 (7440-48-4) a. Iron, Total (7439.89.6) X 0.11 3.7 1 mg/1 lbs/day t. Magnesium, Total X 5 --- 1 Mg/1 ( 7439.96.4) u. Molybdenum, Total X 0.18 6.1 1 mg/1 lbs/day (7439-98-7) v.anganese, Total X 0.05 1.7 1 mg/1 lbs/day (7439-96-6) w. Tin. Total (7440-31.5) X < 0.1 --- 1 mg/1 x. Titanium, Total X < 50 --- 1 Ug/1 (7440-32-6) 1 EPA Form 3510-2C (Rev 2-85) PAGt'V-Z GUNIINUt ON FAuc v -s EPA Form 3510-2C (Rev 2-85) PAGE V-3 CONTINUE ON REVERSE EPA 1 D NUMBER (copy from Hem 1 of Form 1) OUTFALL NUMBER Form Approved NCO038377 002 OMB No 2040-0086 , :ONTINUED FROM PAGE 3 OF FORM 2-C Approval expires 7-31-88 PART C - If you area primary Industry and this outfall contains process wastewater, refer to Table 2c-2 In the Instructions to determine which of the GC/MS fractions you must test for Mark "X" In column 2-a for all such GC/MS fractions that apply to your Industry and for ALL toxic metals, cyanides, and total phenols If you are not required to mark column 2-a (secondary Industries, nonprocess wastewater outfalls, and nonrequired GUMS fractions), mark "X" In column 2-b for each pollutant you know or have reason to believe Is present Mark "X" In column 2-c for each pollutant you believe Is absent If you mark column 2a for any pollutant, you must provide the results of at least one analysis for that pollutant If you mark column 2b for any pollutant, you must provide the results of at least one analysis for that pollutant If you know or have reason to believe it will be discharged In concentrations of 10 ppb or greater If you mark column 2b for acroleln, acrylonitrile, 2,4 dlnitrophenol, or 2-methyl-4, 6 dlnitrophenol, you must provide the results of at least one analysis for each of these pollutants which you know or have reason to believe that you discharge In concentrations of 100 ppb or greater Otherwise, for pollutants for which you mark column 2b, you must either submit at least one analysis or briefly describe the reasons the pollutant Is expected to be discharged Note that there are 7 pages to this part, please review each carefully Complete one table (all7 pages) for each outfall See Instructions for additional details and requirements. .POLLUTANT 2 MARK W 3. EFFLUENT 4. UNITS 5 INTAKE (optional) AND CAS NUMBER dre{r ING b ■E- IEve c ■E- a. MAXIMUM DAILY VALUE u■vE b. MAXI M 30 1 Mau DAY VALUE a e c LONG T M avaflahte AVR VALUE d NO.OF a CONCEN- a LONG TERM V L E b NO OF (it available) GUIIn PRIX- SENT AIS- {ENT (�) (2) MA{{ CONCENTRATION ANAL- YSES TRATION b MASS ANAL- YSES I11 CONCENTRATION (_) MAi{ III CONCENTRATION (2) MA{{ (1) CONCEN- Tq ATION (_) MAS{ AETALS, CYANIDE, AND TOTAL PHENOLS M. Antimony, 'otai (7440-36-0) X X < 0.05 --- 1 mg/1 W Arsenic, Total 7440.38-2) X 29 .998 1 ug/1 lbs/day IM. Beryllium, rotal, 7440.41-7) X X < 0.02 --- 1 mg/1 IM Cadmium, total (7440-43-9) X X < 2 --- 1 ug/1 W. Chromium, rota) (7440-47-3) X 12 .413 1 ug/1 lbs/day 74 Copper,0.60-8) Taal 7aao•co-e) X 8. 4 . 2 8 9 1 u 1 g/ lbs/da y 7M Lead, Total 17439-92-11) X X < 10 , --- 1 ug/1 3M. Mercury, Total X X < 0.2 --- 1 ug/1 7439-97-6) W. Nickel. Total X X < 10 --- 1 ug/1 ;7440.02-0) 10MTot Selenium, X X < 5 --- 1 ug/1 Total (7782-49-2) 11M Silver, Total (7440-22-4) X X < 0.01 --- 1 Mg/1 Thallium, X X < 0.01 --- 1 mg/1 Tota Total (7440-28 0) 13M. ZJnc, Total (7440-66.6) X 13 .447 1 ug/1 lbs/day 14M Cyanide, Total (57-12-5) X X 0.01 --- 1 mg/1 15MPhenols, X X C 0.005 --- 1 mg/1 Total DIOXIN 2,3,7,6-Tetra DESCRIBE RESULTS chlorodibenzo-P- X Dioxin (1764-01-6) EPA Form 3510-2C (Rev 2-85) PAGE V-3 CONTINUE ON REVERSE ONTINIIEn FROM THE FRONT I POLLUTANT 2 MARK x 3 EFFLUENT 4 UNITS 5 INTAKE (optional) AND CAS NUMBER -Ta sr b fiE- Car: a MAXIMUM DAILY VALUE neve b Mf.XIM M 3 1 DUDi Y VALUE Q ¢ y gP C LONG T M VALUE JR RXP� VALUE, 1 QUQI Q ¢ NO OF a CONCEN- a LONG TERM RA E VALUE b NO OF (i(availubl') INT. OUIH- utve SlNT ANAL- USES TRATION b MASS ANAL- YSES SENT (I) CONCLNTRATION 13l MA]] (1) CONCGNTH ATION 1 MASS ( ) (I) CONCENTHATION 1�1 .1A]S 1 cONCEN- ( TR ATION 12) MAYS 3C/MS FRACTION —VOLATILE COMPOUNDS IV Acrolein 107-02-8) X X < 5 --- 1 ug/1 2V Acrylonitrile 107 13-1) X < )r --- 1 ug/1 X 3V Benzene (71-43-2) X - 5 --- 1 ug/1 X 4V Bis (Chloro- nethyl) Ether TE TING& EPORTING NOT REQUIRED (542-88-1) SV Bromoform X < 5 --- 1 ug/1 (75-25-2) X 3V Carbon < 5 Tetrachloride XX --- 1 ug/1 (56.23.5) (108-90-7) benzene X < 6 ___ 1 ug/1 X 8V Chlulodr bromomethane X X < 5 --- 1 ug/1 (124 48-1) 3V Chloroethane X < 10 --- 1 ug/1 (75-00.3) X 10V 2-Chloro- ethylvinyl Ether X X < 10 --- 1 ug/1 (110-75-8) 11 V. Chloroform X X < 5 ___ 1 ug/1 (67-66.3) 12V, Dlchloro- bromomethane X X < 5 --- 1 ug/1 (75-27-4) 13V Dichloro- dlfluoromethene TE TIN & EPORTING NOT REQUIRED (75-71-8) 14V. 1,1-Dlchloro- X X 5 --- 1 ug/1 ethane (75-34-3) 15V. 1,2-Dlchloro- X X < 5 --- 1 ug/1 ethane (107-06-2) 16V 1,1-Dichloro- X X < 5 --- 1 ug/1 ethylene (75-35-4) 17V 1,2-Dlchloro X X G 6 --- 1 ug/1 propane (78-87-5) 18V 1,3-Dichioro- X k < 5 --- 1 ug/1 propylene(542-75-6) 19V Ethylbenzene X X < 8 --- 1 ug/1 (10041 4) 20V Methyl X X 10 --- 1 ug/1 Bromide (7483-9) 21V Methyl X X 10 —_— 1 ug/1 Chloride (74 87 3) PA Form 3510-2C (Rev 2-85) PAGE V-4 CONTINUE ON PAGE V-5 P-, A -1 EPA 1 D NUMBER (copy from liem l Of F'Orm I) OV I -FALL NUMBER OMB No 2040 0086 INTINUED FROM PAGE V-4 NCO038377 002 Approval expires 7 31 88 POLLUTANT 2 MARK 'X' 3 EFFLUENT AND CAS 4 UNITS 5 INTAKE (uptlorlaJ) NUMBER !<rEsr b OE- G BE- a MAXIMUM DAILY VALUE b MAXIMUM 3 Ya?,AY VALUE c LONG T M VALUE INf. llEve LIEVE 1 aUOI a e �oopltu d NO OF 9 61 ) LONG TERM b NO OF ANAL- (If OV011et)IL') GEIR- SENT HNT 111 (31 Mw55 (1) (3) MASS 111 (z) MASS YSES C ONGl NTp AT... CONCENTRATION CONCENTRATION a CONCEN-b MASS TRATION �' E ANAL - (11 C CEN- (i) YS ;C/MS FRACTION — VOLATILE COMPOUNDS (continued) MwSB -Es TRA ION 2V Methylene ;hlorlde (75-09-2) X X < 5 --- 1 ug/1 3V 1,1,2,2-Tetra- t;ane 79-34. 79-34-6 X X < 7 ___ 1 ug/1 4V Tetrachloro- thylene (127-18-4) X X < 5 --- 1 ug/1 5V Toluene 108-88-3) X X < 6 --- 1 ug/1 6V 1,2-Trans- Ilchloroethylene 156-60-5) X X < 5 --- 1 ug/1 7V. 1,1,1-Tri- hloroethane X X < 5 --- 1 Lig/1 71-55-6) 8V 1,1,2-Trl- hloroethane 79-00-5) X X < 5 --- 1 ug/1 9V Trichloro- thylene (79-01-6) X X < 5 --- 1 ug/1 OV Trichloro- luoromethane X X <10 --- 1 Ug/1 75-69-4) 1V Vinyl ,hlorlde (75.01-4) X X < 10 --- 1 Ug/1 ;C/MS FRACTION — ACID COMPOUNDS 2 -Chlorophenol S 578 X x< 10 --- 1 ug/1 A 2,4-Dlchloro- henol(120832) X X < 10 --- 1 ug/1 A 2,4 -Dimethyl- honol (105 67 9) X X < 10 _-- 1 ug/1 A 4,6-Dinitro O- :resol (534-52 �) X X < 50 --- 1 Ug/1 A 2,4-Dinitro henol (51.28.5) X X < 50 --- 1 Ug/1 A 2-Nitrophenol 38 75.5) X X < 10 --- 1 llg/i A 4-Nitrophenol 100-02-7) X X < 50 --- 1 ug/1 P -chloro M r esol (59-50-7) X X < 10 --- 1 ug/1 A Pentachloro henol (87 86 5) X X < 50 --- 1 Ug/1 OA Phenol 10 108952) X X < 10 --- 1 Ug/1 1A 2,4,6 -Tri- hlorophenol X X < 10 --- -- 1 ug/1 38 06-2) ONTINUED FROM THE FRONT POLLUTANT 2 MARK x• 3 EFFLUENT 4 UNITS 5 INTAKE (optional) AND CAS NUMBER &TEsr b. ■!- c �!• a MAXIMUM DAILY VALUE LIE b MAXIMWM 37, 1 aUal Dp.Y VALUE a ¢)J C LONG T jiM 1 aUala y�[R VALUE �l 61 �'• e V NO OF a LONGTERM E VALUEPRL b NO OF ING UEv! ANAL- 8 CONCEN- b MASS ANAL !NT (IAD-) (i) MAS] 11) (31 MA55 III (z) MAST (I) CONCl N- 121 MASS (it available) 41IR 1CNT YSES TRATION YSES CONCENTRATION CONCENTRATION CONCENTNAl1ON TRATION ;C/MS FRACTION — BASE/NEUTRAL COMPOUNDS 93-32-9) Acenaphthene TE TIN & EPORTING NOT REQUIRED !B Acenaphtylene 208-96-8) IB Anthracene 120-12-7) M Benzidine 92-87.5) iB Benzo (a) anthracene '.56-55-3) 38. Benzo (a) lyrene (50-32-8) 7B. 3,4-Benzo- 7uoranthene 205-99.2) i8 Benzo (ahl) �eryiens '191-24-2) _ 1B. Benzo (k) FIuoranthene [207-08-9) 10B. Bis (2-Chloro- .thoxy) Methane 1111-91-11 11B Bis (2-Chloro- sthyl) Ether (111-44-4) 28 Bis (2-ChMraisa- vopyl) Ether (102-60- 1) 13B. Bic (2 -Ethyl - hexyl) Phthalate (117-81-7) 148. 4-Bronno- phenyl Phenyl Ether (101-55-3) 15B Butyl Benzyl Phthalate (85-68-7 16B. 2 -Chloro - naphthalene (91-58-7) 17B. 4 - Chloro -phenyl Phenyl Ether 7005-72-3) 18B Chrysene (218-01-9) 19B Dlbenzo (a,h) Anthracene (53-70-3) 20B 1,2-Dichloro- benzene(95.50-1) 21B. 1,3 -Dichloro- benzene (541-73-1 , PA Form 3510-2C (Rev 2-851 PAGE V-6 CONTINUE ON PAGE V-7 rM I u MUMBER (copy /nom Item I of Form 1) CONTINUED FROM PAGE V-6 NCO038377 OUTFALL NUMBER 002 -,, N_1o,,N,"rl:v OMB No 2040-0086 Approval expires 7 31 88 1 POLLUTANT AND CAS NUMBER (if available) 2 MARK W 3 EFFLUENT b MAXI MI(M 3� pqY VALUE c LONG TI M y�(R( VALUE diF fT b ■!- C �!- a MAXIMUM DAILY VALUE (I aUal D e ({%av abieJ' d NO OF IM4 LINE LIEV! N!- ►Nl- AM- 4 UNITS a CONCEN- TRATION b MASS 5 INTAKE (I)ptlorlaf/ -.LONG TERM A E V LVE b NO OF (ITN Irl OU111- SENT fENT 111 (i) MASS CONCI NTIIATIUN 111 CONCLNTNAiION 111 Mw55 111 CUNCENTNATION 1,1 MAS. ANAL- YSES GC/MS FRACTION — BASE/NEUTRAL COMPOUNDS (continued) Al10NN MASS YSEL 22B 1,4 -Dichloro- benzene (106-46.7 MUING & REPORTING NOT REQUIR D — 23B 3,3'-Dichloro benzidine (9194-1) --- — — — 24B Diethyl Phthalate (84-66-2) 25B. Dimethyl Phthalate (131-11-3) - -- '- 26B DI -N -Butyl Phthalate (84-74-2) 27B. 2,4-Dinitro- toluene (121-14-2) 28B. 2, 6-D In itro- toluene (606-20.2) 29B. DI-N-Octyl Phthalate (117-84-0) 30B. 1,2 -Diphenyl - hydrazine (ae Azo- benzene)(122-66-7 31B Fluoranthene (206-44-0) 3213. Fluorene (86-73-7) 33B Hexechlorobenzen 111 R-71.1 � 34B. Hexa- chlorobutadlene (87.68.3) 35B. Hexechloro- cyclopentedlege (77-47-4) 36B. Hexechloro- ethene (67-72-1) 37 B. 1 ndeno (1,2,3 -cd) Pyrene (193-39-5) 3813. Isophorone (78-59-1) 39B. Naphthalene (91-20-3) 40B Nitrobenzene (98-95-3) 41B N -N Itro- sodlmethylamine (62-75-9) — 42B N-Nitrosodl- N-Propylemine (621-64-7) — — -- ---- CONTINUED FROM THE FRONT I POLLUTANT AND CAS 2 MARK X' 3 EFFLUENT 4 UNITS 5 INTAKE (optional) NUMBER Brt sT b ■E- C ■E 8 MAXIMUM DAILY VALUE LICVE b MAXIMUM 3 if aval �Y VALUE q a VIA C LONG TfiRM AVRG VALUE 1 aUp7 p e ii l b! 1 [I NO OF a LONG TERM RA E ALUE b NO OF (it available) ]NG NE- OIIIR uEve ►n E- FENT ANAL YSES e CONCEN TRATION ) MASS ANAL we ■ENT Ill (rl rtwss III (: wss l'A III (�) ASS Ill CONCt'N In CON( LNTRATION -- CONCE NTII I]tION -- --- CONLENTN wT1UN _ THAT,ON Irl MAEs YSES GC/MS FRACTION — BASE/NEUTRAL COMPOUNDS (continued) 143B. N-Nltro- sodiphenylamine (8630-6) 44B. Phenanthrene (85-01.8) 45B Pyrene (129-00.0) -- — - - 46B. 1,2,4 - Trl- -- chlorobenzene (120-82-1) GC/MS FRACTION — PESTICIDES 1P Aldrin (309-00-2) TESTING & ZEPORTING qOT REQUIR D 2P a. -BHC (319-84-6) 3P -BHC (319-657) 4P 'r BHC (58-89-9) 5P 6 -BHC (319-86-8) 6P Chlordane (57-749) 7P 4,4' -DDT (5029-3) 8P 4,4' -DDE (72-55-9) 9P 4,4' -DDD (72-54-8) 10P Dieldrin (60.57-1) 11P a-Endosulfan (115-29.7) 12P. Q-Endosulfan (116-29-7) 13P ndosulfan Sulfate (1031-07-8 14P Endrin (72-208) 15P Endrin Aldehyde (7421-934) I 16P Heptachlor I (76 44 8) CrM roan 410 IU -e -t. InrV c-001 rM%.r- V-0 CONTINUE ON PAGE V-9 ONTINUED FROM PAGE V-8 EPA I D NUMBER (OOpV from Item 1 O%/'OMi 1) NCO038377 OUTFALL NUMBER 002 'u"I'No 2 40 OMB Na rove 0086 Approval expires 7 31 88 I POLLUTANT AND CAS NUMBER !/!1l'lillllll!'' ! I 2 MARK x' resroEC®E- a MAXIMUM 1"lIR SENT SENT CDN( l N'TIIATIUN I DAILY VALUE 3 b MAXIMI/M 30 / at aiU EFFLUENT DAY VALUE ! 6l el C LONG T M ilp Vaj(a(t�e p��( VALUE 11 NO OF ANAL YSES 4 UNITS a CONCEN TRATION b MASS 5 INTAKE a LON(, I�qE(1 St (Itptllnla!) CRMNO VALUE (l) MATS OF ANAL- YSES (:) MASS ('1 C()NCtfITNw _ (�) Mw]sI'1 ---- - - --- ------_ --- ------ - C-CENTNIITION (f) MA]S II) 1-- 3C/MS FRACTION - PESTICIDES (continued) --- --- T"ATION — 17P Heptachlor I-poxlde (102457-3) -- - ----- --- - - -- -- -- -- ------ - ----- -- 18P PCB -1242 (53469-21-9) 19P PCB -1254 (1 1097-69.1) -- - -- ---- ---- - LOP PCB -1221 (11104-28-2) - - 21P PCB -1232 (11141-16-5) - - - ---- - --- --- - - - -- ------ -- -- - --- ---- - 22P PCB -1248 (12672-29-6) --- ------ - ---- --- -- - ---- - - - - - ------ - ---- --- ---- - - - - �3P PCB -1260 (11096-82 5) - ------- ------- ?4P PCB 1016 112674.11 2) - - --- - - 25P Toxaphene (8001-352) - Carolina Power & Light Company Mayo Steam Electric Plant National Pollutant Discharge Elimination System Permit Number NC0038377 ENCLOSURE2 Form I Item XI I$ 8� A R G et = j=ai X C O u N i r9 Mayo Plant z py / r' Iepp Ili\ Ii„ M/1M 11502 LZk 7. a 12 '� s -503 �<I • y sal 2m IS14 IA L-L�.W—K Q ROXBORO f' ror i ssi � n 1 ymYidoM N 36'25 SCALE 2 3 A WLES 0 05 1 MRE SCALE FOR ENLARGEMENTS 0 1 2 Enclosure 2 Form 1 - Item XI Carolina Power & Light Company Mayo Steam Electric Plant Person County, N.0 Page 2 of 2 November 1996 Carolina Power & Light Company Mayo Steam Electric Plant National Pollutant Discharge Elimination System Permit Number NC0038377 ENCLOSURE3 Schematic of Water Flow 16 Outfall 002 Evaporation 11 Cooling Towers Outfall 001 Mayo Reservoir 14 1 14 Misc Equipment Heat Exchangers 2 3 Intake Structure Raw Water Potable & _ 5 Treatment Sanitary Syste alternate_ g 13 4 Ash Sluice Water Condensers Fire Protection Water Storage Sewage Treatment 12 Boiler & Turbine Condensate Storage Ion Exchange g Oily Waste Treatment s I Ash Pond 15 Coal Pile Runoff Misc Low Volume 14 Heat Exchanger (primary route) 8.5 MGD recirculating flow 15 Coal Pile Runoff 0.0135 MGD annual daily average 16 Ash Pond 7.3 MGD NOTES: Flow rates may not balance due to miscellaneous losses and system evaporation Enclosure 3 Carolina Power & Light Company Mayo Steam Electric Plant Person County, N C. Schematic of Water Flow Page 2 of 2 October 1996 Carolina Power & Light Company Mayo Steam Electric Plant National Pollutant Discharge Elimination System Permit Number NCO038377 Water Flow Rates Stream Average Flow 1 Intake 14 MGD 2 Cooling Tower (make-up) 13.7 MGD 3 Raw Water Treatment 0.36 MGD 4 Sewage Treatment Plant (STP) 0.002 MGD (0.0125 design) 5 Backwash 0.00175 MGD 6 Treated Water 0.36 MGD 7 Oily Waste (infrequent) 300 GPM (Max rate) 8 Low Volume Wastes 1.5 MGD 9 Boiler Blowdown 0.05 MGD at startup 10 Cooling Tower Basin Drain 2 MG/event, 1/yr. 11 Evaporation 9 MGD 12 Ash Transport 3.9 MGD 13 Intermittent _blowdown of circulating variable, as needed (blowdown) water from heat exchangers 14 Heat Exchanger (primary route) 8.5 MGD recirculating flow 15 Coal Pile Runoff 0.0135 MGD annual daily average 16 Ash Pond 7.3 MGD NOTES: Flow rates may not balance due to miscellaneous losses and system evaporation Enclosure 3 Carolina Power & Light Company Mayo Steam Electric Plant Person County, N C. Schematic of Water Flow Page 2 of 2 October 1996 Carolina Power & Light Company Mayo Steam Electric Plant National Pollutant Discharge Elimination System Permit Number NC0038377 ENCLOSURE4 Description of Waste Streams Carolina Power & Light Company Mayo Steam Electric Plant National Pollutant Discharge Elimination System Permit Number NC0038377 Description of Waste Streams The Mayo Steam Electric Plant is a coal-fired generating plant with one unit rated at a maximum net dependable capacity of 745 MW. No. 2 fuel oil is used for start up and stabilization of the boiler flame. Chemical constituents contained in the discharges from this facility 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 fuel 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 in the discharges. More detailed descriptions of the individual waste streams are presented below. Outfall 001 - Cooling Tower Basin Drain Approximately once per year the cooling tower and circulating water system is drained by gravity to the reservoir to dewater the system for maintenance. That discharge is monitored and reported to the regional office. Outfall 002 - Ash Pond Discharge The ash pond receives ash transport water, coal pile runoff, storm water, cooling tower blowdown, and various low-volume wastes such as boiler blowdown, oily waste treatment, wastes/backwash water from water treatment processes, plant area wash down water, and Page 1 of 3 equipment heat exchanger water. The STP effluent is routed to the ash pond also. The pond provides treatment by sedimentation, oxidation, neutralization, equalization, and adsorption. Ash Transport Water - Water for sluicing fly ash and bottom ash to the ash pond is withdrawn from the closed circulating water system. Some fly ash is handled dry by a pneumatic system and is transported off site. The water in the closed circulating water system is treated with a dispersant (acrylic acid polymer) and 1-Bromo-3-chloro-5,5-dimethylhydantoin for protection of the cooling tower fill. Coal Pile Runoff - The coal pile runoff is routed to the ash pond. Flow volumes are related to rainfall frequency and intensity. The annual daily average flow presented previously is based on a coal pile area of 5 acres, an annual average rainfall of 44 inches and a runoff coefficient of 1.0. Cooling Tower Blowdown - Normally, ash transport water withdrawal from the closed circulating water system is sufficient to control total dissolved solids (TDS) in the cooling water. During periods of maintenance, some molybdate waste from the closed cooling water system is routed to the ash pond. Also during periods of maintenance, the cooling tower basin is drained to the reservoir. Low Volume Wastes - Oily Wastes - Drains containing oily wastes or water are routed to the oily waste basin. The discharge from the oily waste basin is routed through the oily waste separator where the oil is removed and contained. The treated water is then discharged to the ash pond. The fuel oil unloading area is bermed to prevent accidental release of oil to the reservoir. The fuel oil storage tank is in a containment area with a valved drain. This drain is routed to the oily waste basin. Boiler Blowdown - Boiler make-up water is withdrawn from the lake, treated by various processes and stored in tanks until needed. The boiler water is treated with ammonia and hydrazine Page 2 of 3 continuously when the boilers are in service. Sodium hydroxide is used when needed during abnormal conditions. Boiler blowdown is routed to the ash pond via the low-volume waste conveyance. Water Treatment Wastes - Water is withdrawn from the lake and is treated by clarification, sand filtration, carbon filtration, and demineralization. Various wastes such as filter backwash, and spent regeneration chemicals such as sulfuric acid and sodium hydroxide are routed to the ash pond via the low volume waste conveyance. Miscellaneous - Other miscellaneous sources such as wash down water and water from various plant drains are routed to the ash pond via the low volume waste conveyance. Miscellaneous equipment heat exchanger water can be routed to the ash pond via the alternate cooling tower blowdown line if needed. Sewage Treatment Plant (STP) - Domestic sewage from the approximately 80 employees on site and occasional extra contract maintenance personnel is treated by an extended aeration treatment plant. The plant is designed for 0.0125 MGD and consists of a screen, comminuter, surge tank, aeration tank, clarifier, chlorine contact chamber, and a sludge holding tank. The STP is routed to the ash pond via the alternate cooling tower blowdown line. Page 3 of 3 Carolina Power & Light Company Mayo Steam Electric Plant National Pollutant Discharge Elimination System Permit Number NC0038377 ENCLOSURES Chemicals Used in Process Control Carolina Power & Light Company Mayo Steam Electric Plant National Pollutant Discharge Elimination System Permit Number NCO038377 CHEMICALS USED IN PROCESS STREAMS Chemical Used/Year Frequency Purpose Aluminum sulfate 1000 gals. Continuous Improve settleability in clarifier Polymer 50 lbs. Continuous Improve settleability in clarifier Sulfuric acid 93 % 87 tons As required Demineralizer regeneration Sodium hydroxide 47 dry tons As required Demineralizer regeneration Sodium molybdate 55 gals. As required Corrosion control Hydrazine 700 gals. Continuous Oxygen scavenger Aqua ammonia 11,500 gals. Continuous Boiler water pH control Sodium hydroxide 20 lbs. As required pH control Sodium hypochlorite 100 gals. Continuous Potable water Polyphosphate 55 gals. Continuous Corrosion control 15 % Liquid caustic 700 gals. Continuous STP, potable water 1-Bromo-3-chloro-5,5- dimethylhydantoin 4.5 tons Continuous Biofouling control Dispersant (acrylic acid polymer) 1,100 gals. Continuous Biofouling control Enclosure 5 Carolina Power & Light Company Mayo Steam Electric Plant Person County, N.C. October 1996 Carolina Power & Light Company Mayo Steam Electric Plant National Pollutant Discharge Elimination System Permit Number NCO038377 ENCLOSURE6 Mayo Plant Outfalls Mayo Plant Outfalls 3632' 02.989"N 7653'26.848"W Ashpond Outfall 002 36 31' 50.324"N 78"53' 43.776"W Ash Pond Influent ry Building 36'31'45.498"N 78'53' 20.697"W Outfall 004 46 • Outfalls. /AV/' Road. 3632' 06.626"N 78°53' 01.615"W Outfall 007B '1 36 32' 02.156'N 78' 53' 08.939"W Outfall 007A 36 31' 39.549"N 78'53' 16.841"W Outfal� 5 36r 31' 36.042"N 7e53'07 ' 236"W 3631' 34.538"N Outfall 00A 78°53' 01.792"W OutfallOosB Cooling Towers Adminstration Building 36r 31' 30.396"N 78 52' 55.505"W 3fi 31' 29.160"N -Outfall 006C 7652' 56.595"W Outfall 006D �36 31'28.152"N 36er31' 28.919"N 78 52' 55.735"W 78°52' 57.022"W Cooling Tower Drain Outfall 006E Outfall 001 500 0 500 1000 Meters