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HomeMy WebLinkAboutNC0001422_Review of LV Sutton Steam Plant_20110317 • A NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Dee Freeman Governor Director Secretary March 17, 2011 J. Mark Frederick, Plant Manager Sutton Steam Electric Plant Progress Energy 801 Sutton Steam Plant Road Wilmington, NC 28401 Subject: Review of Progress Energy's L.V. Sutton Steam Plant(NPDES Permit NC0001422): "Fishery Monitoring to Evaluate the Rerouting of Ash Pond Effluent, February 21, 2011". Dear Mr. Frederick, Thank you for your continued efforts to provide the North Carolina Division of Water Quality with annual fish selenium monitoring data from the lower Cape Fear River. As required by NPDES Permit NC0001422,fish tissue analysis is performed annually by Progress Energy at three locations near the L.V. Sutton Steam Plant in Wilmington, NC if the outfall from the ash pond discharges to the river for 120 days in a calendar year. To date, selenium concentrations in all targeted fish species have remained similar to the baseline concentrations reported in 1999. Progress Energy data from 2010 continues to show that the rerouting of the ash pond outfall in the Cape Fear River has had little effect on fish Selenium levels in the vicinity of the power plant and that all Selenium levels in fish are well below the Department of Health and Human Service's fish consumption action level of lOppm. As noted in our March 10,2010 letter,we are pleased to know that Progress Energy Carolinas Inc. is scheduling major changes to the Sutton Steam Electric Plant that will reduce mercury emissions by the year 2014. We see this as a unique monitoring opportunity for Progress Energy Carolinas Inc.and the North Carolina Division of Water Quality. Therefore,we are requesting that Progress Energy begin simultaneous mercury analysis of fish from the Lower Cape Fear River during all subsequent fish-selenium monitoring efforts. If you have any questions, please do not hesitate to contact me or my staff. Sincerely, y� "Tki‘.6ry Jay H. Sauber Chief, Environmental Sciences Section Cc: Chuck Waklid, Deputy Director Matt Matthews, Surface Water Protection Section Tom Belnick. NPDES Complex Permitting Unit Rick Shiver,Wilmington Regional Office Environmental Sciences Section 1621 Mail Service Center,Raleigh,North Carolina 27699-1621 Location:4401 Reedy Cr Road.Raleigh,North Carolina 27604 Phone:919-743-84001 FAX:919-743.85171 Customer Service:1-877.623-6748 One Internet:www.ncwaterquality.org NortthCarolliina An Equal Opportunity 1 Affirmative Action Employer Naturally Ly 6 7 Rotenone Cove CFP 04,w.p Pulop all Aodwqr-�- I.M. Sullon Steant Electflc Plait 0 zsOa0o1,000 Meta$ 0 77 1.7 3,000 Fed Public Boa Rapp Figure 1. Cape Fear River selenium monitoring locations. New Ash Pond N w , Pon(' S � Old Ash PLildl lilt *0 Canal DI Coo&V Pond Discliage "Of.11 RMjt DW v • k‘ .� Progress Energy J.Mark Frederick Plant Manager File No.: SUT 12520-B February 21,2011 Certified Mail$ Jay Sauber North Carolina Division of Water Quality(DWQ) 1621 Mail Service Center Raleigh,NC 27699-1621 FISHERY MONITORING TO EVALUATE THE REROUTING OF ASH POND EFFLUENT Dear Mr.Sauber: Carolina Power&Light Company d/b/a Progress Energy Carolinas,Inc.submit three(3)copies of the fish tissue monitoring report in accordance with Part I,Section A(12)of the L. V.Sutton Steam Electric Plant's National Pollutant Discharge Elimination System(NPDES)Permit Number NC0001422. The selenium fishery monitoring report is required annually when discharge of Outfall 004 to the Cape Fear River occurs for more than 120 calendar days in a calendar year. If you have any questions please contact Robin Bryson at(919)546-3962 or Reid Garrett at(919) 546-5434. Both Robin and Reid are Sr.Environmental Specialists with Progress Energy's Environmental Health and Safety Section. I cert, 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. Respectfully yours, J. Mark Frederick Progress Energy Carolinas,Inc. Sven Steam Plan 801 Sut•r, Stern Plan,F•i:rl 'A,111•i-cu•i N[78411• . L. V. Sutton Electric Plant NPDES Permit No. NC0001422 Selenium Monitoring of Fish in the Cape Fear River, 2010 New Hanover County, North Carolina Progress Energy Carolinas, Inc. Environmental Services Section February 2011 Table of Contents Page 1.0 Introduction 2 2.0 Study Site Description and Sampling Locations 2 3.0 Target Species 2 4.0 Field Sampling Methods 2 5.0 Laboratory Processing and Selenium Analysis 3 6.0 Data Analysis and Reporting 3 7.0 Reference 3 List of Tables Page Table 1 Baseline selenium concentrations in axial muscle of fish from the lower Cape Fear River, 1999 5 Table 2 Selenium concentrations in axial muscle of fish from the lower Cape Fear River,2010 6 List of Figures Page Figure 1 Cape Fear River selenium monitoring locations 4 1 1.0 Introduction Carolina Power & Light Company d/b/a Progress Energy Carolinas, Inc. (Company) owns and operates the L. V. Sutton Electric Plant(Sutton Plant) located on the east side of the Cape Fear River in New Hanover County. Sutton Plant is approximately twelve river miles upstream of Wilmington, North Carolina. As required by the Sutton Plant's National Pollutant Discharge Elimination System (NPDES) Permit No. NC0001422, monitoring selenium concentrations in fish from the Cape Fear River was conducted during 2010 to fulfill the monitoring requirements under Part I, Section A. (12) Fish Study and Monitoring to Evaluate the Rerouting of Ash Pond Effluent. 2.0 Study Site Description and Sampling Locations Fish from three locations of the lower Cape Fear River (Figure 1) were collected during four separate sampling trips in 2010. Multiple sampling attempts were made due to limited availability of some of the target species. As a result, some of the target species were not collected during 2010. Sampling Station UP is located approximately 1.5 miles upstream of the Sutton Plant discharge and is characterized as riverine with woody debris and overhanging trees. This station typically receives minimal influence of the tidal saltwater intrusion. Station DI is located near the plant discharge to the river and Station DW is located approximately 1.5 miles downstream of the discharge. The two stations are greatly affected by tidal saltwater intrusion. 3.0 Target Species The original primary target species in the study plan for the baseline pre-operational sampling was the blue catfish Ictalurus f urcatus. During 2010, in addition to blue catfish, channel catfish Ictalurus punctatus, bluegill Lepomis machrochirus, pumpkinseed Lepomis gibbosus, redear sunfish Lepomis auritus, and largemouth bass Micropterus salmoides were also collected as target species. An attempt was made to collect fish of similar size; however, due to limited availability, most target fish were retained and processed regardless of size if enough tissue was available for analysis. 2 4.0 Field Sampling Methods Standard fishery gear types were used during the collection effort including a boat electrofisher (pulsed DC current), angling, and trotlines. Trotlines were checked at approximately 24-hour intervals during the sampling period. High salinity waters at Stations DI and DW affected the availability of freshwater fish, particularly at Station DW, and as in past sampling years resulted in fewer target species being collected despite significant sampling effort during the four separate sampling trips. Ancillary fisheries data including species, numbers, total lengths, and total weights, were recorded. Fish collected for selenium analysis were placed in a labeled (date, station, target species, etc.) bag and placed on ice until they were transferred to an on-site freezer at the end of each day. Only live fish that showed little signs of deterioration were retained for analysis. 5.0 Laboratory Processing and Selenium Analysis All fish were processed in the Company's trace element laboratory for selenium analysis according to procedure NR-00107 (Revision 1)Trace Element Monitoring Laboratory Procedure of the Progress Energy Certified Biological Laboratory Standard Operating Procedures (SOPs). Most of the processed samples (lyophilized) were analyzed in-house according to procedure CHE-NGG-0044 Energy Dispersive Polarized X-ray Fluorescence Procedure. Eight fish were analyzed at an external laboratory for selenium using hydride generation/atomic absorption spectroscopy due to their small sample sizes. Fillets of left axial muscle were used for the analyses. The fish carcasses with sufficient tissue remaining were archived and will be kept up to two years in the event that re-analysis is needed. 6.0 Data Analysis and Reporting For comparison purposes, the original baseline selenium concentrations (converted to µg/g wet weight) in fish collected in 1999 are shown in Table 1. The selenium concentrations (wet weight) collected in 2010 are shown in Table 2. In addition to the lengths and weight of each fish, the dry-to-wet weight ratios are presented for conversion the selenium concentrations between wet and dry weight values, if desired. Selenium values from the fish at all three stations 3 • were similar to or slightly above the range of values reported in the baseline data. Four fish at Station DI were slightly elevated above I ppm wet weight. However,all the results were below the US EPA and North Carolina(Health Department)screening values(NCDNER 2006). 7.0 References NCDENR.2006.Standard operating procedures fish tissue assessments,Raleigh,North Carolina. 4 1 Table 1. Baseline(prior to Outfall 004 operation)selenium concentrations in axial muscle of fish from the lower Cape Fear River, 1999. Length Weight Selenium Dry-to-wet* Fish Species Month Station (mm) (g) (wet wt.3Ig/g) Weight Ratio Bluegill January UP 142 49 0.3 0.18 Bluegill January UP 153 66 0.2 0.19 Bluegill January UP 153 66 0.4 0.19 Blue catfish January UP 427 618 0.2 0.18 Blue catfish January UP 310 242 0.2 0.16 Blue catfish January UP 421 572 0.1 0.18 Bluegill January DI 141 52 0.3 0.19 Bluegill January DI 145 48 0.2 0.18 Bluegill January DI 146 51 0.7 0.21 Blue catfish January DI 131 35 0.2 0.17 Bluegill January DW 130 33 0.4 0.18 Bluegill January DW 195 152 0.2 0.20 * To convert to a dry weight, divide the wet weight selenium concentrations by the tissue dry-to- wet weight ratio. 6 • , I Table 2. Selenium concentrations in axial muscle of fish from the lower Cape Fear River,2010. Length Weight Selenium Dry-to-wet* Fish Species Month Station (mm) (g) (wet wt.µg/g) Weight Ratio Bluegill June UP 196 189 0.3 0.22 Bluegill June UP 201 194 0.4 0.21 Bluegill June UP 168 98 0.4 0.20 Pumpkinseed June UP 180 112 0.2 0.18 Pumpkinseed June UP 163 82 0.5 0.20 Pumpkinseed June UP 176 109 0.4 0.20 Pumpkinseed June UP 164 98 0.4 0.20 Pumpkinseed June UP 157 86 , 0.5 0.18 Pumpkinseed June UP 166 105 0.5 0.19 Pumpkinseed June UP 163 86 0.4 0.18 Largemouth bass June UP 279 344 0.4 0.20 Largemouth bass June UP 279 314 0.4 0.19 Largemouth bass June UP 267 256 0.4 0.19 Largemouth bass June UP 282 284 0.4 0.19 Largemouth bass June UP 257 230 0.4 0.19 Largemouth bass June UP 267 276 0.5 0.19 Largemouth bass June UP 291 355 0.4 0.18 Largemouth bass June UP 314 508 0.5 0.22 Largemouth bass June UP 305 391 0.3 0.19 Largemouth bass June UP 267 291 0.2 0.19 Channel catfish June UP 475 1040 0.2 0.17 Blue catfish Sept UP 705 4075 0.4 0.26 Blue catfish Sept UP 490 975 0.2 0.14 Blue catfish Sept UP 728 4040 0.2 0.18 Blue catfish Sept UP 622 2450 0.1 0.17 Blue catfish Oct UP 710 4600 0.2 0.19 7 . 4 • • . r Length Weight Selenium Dry-to-wet* Fish Species Month Station (mm) (g) (wet wt.pg/g) Weight Ratio Blue catfish Oct UP 631 2800 0.1 0.16 Blue catfish Oct UP 701 3600 0.1 0.19 Blue catfish Oct UP 517 5150 0.1 0.19 Bluegill June DI 201 205 0.5 0.18 Bluegill June DI 177 116 0.5 0.20 Bluegill June DI 169 100 0.4 0.20 Bluegill June DI 171 95 2.2 0.20 Bluegill Sept DI 190 138 1.7 0.19 Bluegill Sept DI 171 110 0.2 0.20 Bluegill Sept DI 176 111 1.2 0.20 Bluegill Oct DI 212 208 0.3 0.18 Bluegill Oct DI 198 170 0.3 0.18 Redear Sunfish Oct DI 219 192 0.4 0.18 Largemouth bass June DI 371 882 0.6 0.21 Largemouth bass June DI 409 1100 0.6 0.21 Largemouth bass June DI 352 707 0.6 0.21 Largemouth bass June DI 349 697 0.6 0.22 Largemouth bass June DI 345 676 0.7 0.22 Largemouth bass June DI 350 654 0.4 0.16 Largemouth bass June DI 356 652 0.8 0.17 Largemouth bass June DI 308 438 1.3 0.20 Largemouth bass June DI 395 960 0.3 0.20 Largemouth bass June DI 336 526 0.7 0.21 Blue catfish Sept DI 784 5425 0.1 0.16 Blue catfish Sept DI 665 2900 0.2 0.17 Blue catfish Oct DI 725 5100 0.4 0.15 Blue catfish Oct DI 645 2800 0.2 0.17 Blue catfish Oct DI 548 1600 0.2 0.17 8 J. • . • Length Weight Selenium Dry-to-wet* Fish Species Month Station (mm) (g) (wet wt.µg/g) Weight Ratio Blue catfish Dec DI 725 4575 0.2 0.19 Blue catfish Dec DI 624 2700 0.2 0.19 Blue catfish Dec DI 644 3500 0.2 0.19 Largemouth bass Oct DW 296 448 0.3 0.20 Blue catfish Oct DW 663 3100 0.2 0.16 Blue catfish Oct DW 645 2800 0.2 0.18 Blue catfish Oct DW 830 5900 0.2 0.16 Blue catfish Oct DW 650 3150 0.2 0.18 Blue catfish Oct DW 720 4900 0.2 0.19 Blue catfish Oct DW 652 2850 0.1 0.17 Blue catfish Oct DW 650 3000 0.1 0.18 Blue catfish Oct DW 887 10500 0.2 0.18 Blue catfish Oct DW 678 3800 0.1 0.15 Blue catfish Oct DW 780 5800 0.2 0.15 *To convert to a dry weight, divide the wet weight selenium concentrations by the tissue dry-to- wet weight ratio. 9