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HomeMy WebLinkAbout20081589 Ver 1_CAMA Application_20081223` Progress Energy o g -1s gq V2 ?. Mr. Chad Coburn North Carolina Department of Environment and Natural Resources Division of Water Quality 127 Cardinal Drive Extension Wilmington NC 28405 % ffs D Subject: Brunswick Steam Electric Plant DEC 2 3 2008 Diversion Structure - Additional Rip Rap TD?S ORMWA R 13POW ? Dear Mr. Coburn: Carolina Power & Light Company d/b/a Progress Energy Carolinas requests a modification to the existing water quality certification which allowed the installation of rip rap for re-establishing certain eroded sections of the shoreline that was connected to the fish diversion structure. During the repair of the damaged area it was noticed that at high tide water was coming in behind the rip rap that was used to stabilize the eroded area. In order to mitigate any further erosion issues PEC request permission to install approximately 40 more cubic yards of rip rap. A narrative summary of the project with photographs, detailed drawings and a location map is provided along with a check for $240.00. If you have any questions or need any further information please contact at (919) 546-7457. Sinc re Stephen G. Cahoon Sr. Environmental Scientist Progress Energy Carolinas, Inc. P.O. Box 1551 Raleigh, NC 27602 , Office Use Only' Form Version March 05 . USACE Action ID No. DWQ No. 0 g \ 5 $ C1 0 ?- (If any particular item is not applicable to this project, please enter "loot Appucame or NCH .) 1. Processing CAI Check all of the approval(s) requested for this project: ® Section 404 Permit ? Riparian or Watershed Buffer Rules ? Section 10 Permit ? Isolated Wetland Permit from DWQ ® 401 Water Quality Certification ? Express 401 Water Quality Certification 2. Nationwide, Regional or General Permit Number(s) Requested: 199000291 3. If this notification is solely a courtesy copy because written approval for the 401 Certification is not required, check here: ? 4. If payment into the North Carolina Ecosystem Enhancement Program (NCEEP) is proposed for mitigation of impacts, attach the acceptance letter from NCEEP, complete section VIII, and check here: ? 5. If your project is located in any of North Carolina's twenty coastal counties (listed on page 4), and the project is within a North Carolina Division of Coastal Management Area of Environmental Concern (see the top of page 2 for further details), check here: II. Applicant Information p lSI?J (= ? V L5 D 1. Owner/Applicant Information LL55 v Name: Mr. Edward L. Wills Jr. DEC 2 3 2008 Mailing Address: Brunswick Nuclear Plant R W"R R ?"? 8470 River Road SE WETLAO46STORMWP Southport NC 28461 Telephone Number: (910) 457- 3691 Fax Number: E-mail Address: ed.willsgpgnmail.com 2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter must be attached if the Agent has signatory authority for the owner/applicant.) Name: Steve Cahoon Company Affiliation: Progress Energy Carolinas, Inc. Mailing Address: PO Box 1551 Raleigh NC 27602 *Cahoon is the contact for my questions that may be associated with the permit application* Telephone Number: (919) 546-7457 Fax Number: (919) 546-4409 E-mail Address: steve.cahoonnpgnmail.com Updated 11/1/2005 Page 5 of 12 III. Project Information Attach a vicinity map clearly showing the location of the property with respect to local landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property boundaries and development plans in relation to surrounding properties. Both the vicinity map and site plan must include a scale and north arrow. The specific footprints of all buildings, impervious surfaces, or other facilities must be included. If possible, the maps and plans should include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion, so long as the property is clearly defined. For administrative and distribution purposes, the USACE requires information to be submitted on sheets no larger than 11 by 17-inch format; however, DWQ may accept paperwork of any size. DWQ prefers full-size construction drawings rather than a sequential sheet version of the full-size plans. If full-size plans are reduced to a small scale such that the final version is illegible, the applicant will be informed that the project has been placed on hold until decipherable maps are provided. 1. Name of project: BNP Diversion Structure Maintenance 2. T.I.P. Project Number or State Project Number (NCDOT Only): 3. Property Identification Number (Tax PIN): 208511656144 4. Location County: Brunswick Nearest Town: Southport Subdivision name (include phase/lot number): NA Directions to site (include road numbers/names, landmarks, etc.): From Wilmington take US17S toward Myrtle Beach Exit onto River Road SE (NC 133) towards SouthportFollow NC 133 through Belville Clarendon Orton continue on NC133 past Sunny Point Military Ocean Terminal until you see Brunswick Nuclear Plant entrance road on left. 5. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that separately lists the coordinates for each crossing of a distinct waterbody.) Decimal Degrees (6 digits minimum): 33° 53' 52" ON 78° 03' 18" °W 6. Property size (acres): 1200 acres (entire BNP site) 7. Name of nearest receiving body of water: Atlantic Ocean 8. River Basin: Cape Fear (Note - this must be one of North Carolina's seventeen designated major river basins. The River Basin map is available at http://h2o.enr.state.nc.us/admin/mUs/.) 9. Describe the existing conditions on the site and general land use in the vicinity of the project at the time of this application: Maintenance is proposed to be performed on the Diversion Structure at the BSEP. The Diversion structure is used to prevent the entrance of fish and Updated 11!1/2005 Page 6 of 12 turtles into the intake canal Canal is used to sppply the plant with once through cooling water from the Cape Fear River. 10. Describe the overall project in detail, including the type of equipment to be used: Emergency maintenance is proposed to re-attach the connection of the wing walls with the shoreline this will be done by installing 96 linear feet of sheet pilings with a depth of aqpproximately 30 feet Approximately 80 cubic yards of rip rap will be used to stabilize any areas vulnerable to erosion Pilings will be installed with vibratory hammer, rip rap will be installed using an excavator on a barge Update - to provide an extra 40 cubic yards of rip rap for a total of 120 cubic yards of rip r p for the project 11. Explain the purpose of the proposed work: Re-establish wing wall connections of the Diversion Structure to the shoreline repair damaged turtle blocker fencing, and stabilize areas vulnerable to erosion. IV. Prior Project History If jurisdictional determinations and/or permits have been requested and/or obtained for this project (including all prior phases of the same subdivision) in the past, please explain. Include the USACE Action ID Number, DWQ Project Number, application date, and date permits and certifications were issued or withdrawn. Provide photocopies of previously issued permits, certifications or other useful information. Describe previously approved wetland, stream and buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project, list and describe permits issued for prior segments of the same T.I.P. project, along with construction schedules. Initial work for this project was approved on October 21, 2008 verbally by Ed Beck. V. Future Project Plans Are any future permit requests anticipated for this project? If so, describe the anticipated work, and provide justification for the exclusion of this work from the current application. None at this time. VI. Proposed Impacts to Waters of the United States/Waters of the State It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to wetlands, open water, and stream channels associated with the project. Each impact must be listed separately in the tables below (e.g., culvert installation should be listed separately from riprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts, permanent and temporary, must be listed, and must be labeled and clearly identifiable on an accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial) should be shown on a delineation map, whether or not impacts are proposed to these systems. Wetland and stream evaluation and delineation forms should be included as appropriate. Photographs may be included at the applicant's discretion. If this proposed impact is strictly for wetland or stream mitigation, list and describe the impact in Section VIII below. If additional space is needed for listing or description, please attach a separate sheet. Updated 11/1/2005 Page 7 of 12 I . Provide a written description of the proposed impacts: 96 feet of sheet pilings will be installed in the open water to a depth of 30 feet 120 cubic yards of riprap will be installed to help with erosion and existing turtle blocker mesh fencing will be repaired. 2. Individually list wetland impacts. Types of impacts include, but are not limited to mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams, se aratel list im acts due to both structure and flood' g. Wetland Impact Site Number (indicate on map) Type of Impact Type of Wetland (e.g., forested, marsh, herbaceous, bog, etc.) Located within 100-year Floodplain es/no Distance to Nearest Stream linear feet Area of Impact (acres) 1 Fill Marsh shoreline Yes 1 foot 0.03 Total Wetland Impact (acres) 3. List the total acreage (estimated) of all existing wetlands on the property: NA 4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed, plans and profiles showing the linear footprint for both the original and relocated streams must be included. To calculate acreage, multiply length X width, then divide by 43,560. Stream Impact Number indicate on ma Stream Name Type of Impact Perennial or Intermittent? Average Stream Width Before Impact Impact Length linear feet Area of Impact acres NA Total Stream Impact (by length and acreage) 5. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic Ocean and any other water of the U.S.). Open water impacts include, but are not limited to fill, excavation, dredging, flooding, drainage, bulkheads, etc. Open Water Impact Name Wat Type of Waterbody Area of Site Number ) (if applicable) Type of Impact (lake, pond, estuary, sound, bay, Impact (indicate on ma) ocean, etc.) (acres) I BSEP Intake Canal Placement of pilings BNP Discharge Canal 0.001 ac Updated 11/1/2005 Page 8 of 12 Total Open Water Impact (acres) 6. List the cumulative impact to all Waters of the U.S. resulting from the project: Stream Impact (acres): NA Wetland Impact (acres): 0.030ac Open Water Impact (acres): 0.001 ac Total Impact to Waters of the U.S. (acres) 0.031 ac Total Stream Impact (linear feet): NA 7. Isolated Waters Do any isolated waters exist on the property? ? Yes ® No Describe all impacts to isolated waters, and include the type of water (wetland or stream) and the size of the proposed impact (acres or linear feet). Please note that this section only applies to waters that have specifically been determined to be isolated by the USACE. 8. Pond Creation If construction of a pond is proposed, associated wetland and stream impacts should be included above in the wetland and stream impact sections. Also, the proposed pond should be described here and illustrated on any maps included with this application. Pond to be created in (check all that apply): ? uplands ? stream ? wetlands Describe the method of construction (e.g., dam/embankment, excavation, installation of draw-down valve or spillway, etc.): No pond construction. Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond, local stormwater requirement, etc.): Current land use in the vicinity of the pond: Size of watershed draining to pond: Expected pond surface area: VII. Impact Justification (Avoidance and Minimization) Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide information related to site constraints such as topography, building ordinances, accessibility, and financial viability of the project. The applicant may attach drawings of alternative, lower-impact site layouts, and explain why these design options were not feasible. Also discuss how impacts were minimized once the desired site plan was developed. If applicable, discuss construction techniques to be followed during construction to reduce impacts. Minimal disturbance will be used in the maintenance/ repair activity, the nilinas will be installed using a vibratory hammer, rip rap will be placed along shoreline using an excavator on a barge. VIII. Mitigation Updated 11/1/2005 Page 9 of 12 DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC Division of Water Quality for projects involving greater than or equal to one acre of impacts to freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial streams. USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide Permits, published in the Federal Register on January 15, 2002, mitigation will be required when necessary to ensure that adverse effects to the aquatic environment are minimal. Factors including size and type of proposed impact and function and relative value of the impacted aquatic resource will be considered in determining acceptability of appropriate and practicable mitigation as proposed. Examples of mitigation that may be appropriate and practicable include, but are not limited to: reducing the size of the project; establishing and maintaining wetland and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of aquatic resource functions and values by creating, restoring, enhancing, or preserving similar functions and values, preferable in the same watershed. If mitigation is required for this project, a copy of the mitigation plan must be attached in order for USACE or DWQ to consider the application complete for processing. Any application lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete. An applicant may also choose to review the current guidelines for stream restoration in DWQ's Draft Technical Guide for Stream Work in North Carolina (see DWQ website for most current version.). 1. Provide a brief description of the proposed mitigation plan. The description should provide as much information as possible, including, but not limited to: site location (attach directions and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet) of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view, preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a description of the current site conditions and proposed method of construction. Please attach a separate sheet if more space is needed. None proposed, project is for maintenance of the diversion structure and will affect less than 0,03 acres of wetland. 2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement Program (NCEEP). Please note it is the applicant's responsibility to contact the NCEEP at (919) 715-0476 to determine availability, and written approval from the NCEEP indicating that they are will to accept payment for the mitigation must be attached to this form. For additional information regarding the application process for the NCEEP, check the NCEEP website at http://www.nceep.net/pages/inlieureplace.htm. If use of the NCEEP is proposed, please check the appropriate box on page five and provide the following information: Amount of stream mitigation requested (linear feet): Amount of buffer mitigation requested (square feet): Amount of Riparian wetland mitigation requested (acres): Updated 11/1/2005 Page 10 of 12 Amount of Non-riparian wetland mitigation requested (acres Amount of Coastal wetland mitigation requested (acres): IX. Environmental Documentation (required by DWQ) 1. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land? Yes ? No 2. If yes, does the project require preparation of an environmental document pursuant to the requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)? Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA coordinator at (919) 733-5083 to review current thresholds for environmental documentation. Yes ? No ? 3. If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a copy of the NEPA or SEPA final approval letter. Yes ? No ? X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ) It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to required state and local buffers associated with the project. The applicant must also provide justification for these impacts in Section VII above. All proposed impacts must be listed herein, and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ Regional Office may be included as appropriate. Photographs may also be included at the applicant's discretion. 1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233 (Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify )? Yes ? No 2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers. If buffer mitigation is required calculate the required amount of mitigation by applying the buffer multipliers. I Impact I I Required Zone* Multiplier T, 1 3 (2 for Catawba) 2 1.5 Total * Zone I extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an additional 20 feet from the edge of Zone 1. 3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation of Property, Riparian Buffer Restoration / Enhancement, or Payment into the Updated 11/1/2005 Page 11 of 12 Riparian Buffer Restoration Fund). Please attach all appropriate information as identified within 15A NCAC 2B .0242 or .0244, or .0260. NA XI. Stormwater (required by DWQ) Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss stormwater controls proposed in order to protect surface waters and wetlands downstream from the property. If percent impervious surface exceeds 20%, please provide calculations demonstrating total proposed impervious level. No impervious surface acreage will be added during this project. XII. Sewage Disposal (required by DWQ) Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility. No sewage disposal associated with the project However the dredge spoil form the project will be disposed of in an upland spoil pond maintained by the plant for this purpose. XIII. Violations (required by DWQ) Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules? Yes ? No Is this an after-the-fact permit application? Yes ? No E XIV. Cumulative Impacts (required by DWQ) Will this project (based on past and reasonably anticipated future impacts) result in additional development, which could impact nearby downstream water quality? Yes ? No If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent North Carolina Division of Water Quality policy posted on our website at http://h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description: XV. Other Circumstances (Optional): It is the applicant's responsibility to submit the application sufficiently in advance of desired construction dates to allow processing time for these permits. However, an applicant may choose to list constraints associated with construction or sequencing that may impose limits on work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and Threatened Species, accessibility problems, or other issues outside of the applicant's control). 0 (--Applicant/Agent's Signature Date (Agent's signature is valid only if an authorization letter from the applicant is provided.) Updated 11/1/2005 Page 12 of 12 A 70LA.. NCDENR North Carolina Department of Environment and Natural Resources Division of Coastal Management Michael F. Easley, Govemor James H. Gregson, Director William G. Ross Jr., secretary October 22, 2008 Progress Energy Carolinas, Inc. PO Box 10429 Southport, NC 28461 Dear Sirs: On October 1 e, 2008, a check in the amount of $240.00 was submitted to this office to cover the processing of a minor modification to CAMA Permit No. 293. The actually processing fee for this modification should have.been $100.00. Therefore, an additional $140.00 was submitted. In lieu of a refund of this overage, the Division has.been asked to provide Progress Energy with a $140.00 credit that can be used to offset future, permit processing fees. Based on this request, please treat this letter as a permit processing fee credit of $140.00. When utilizing this credit, please submit a copy of this memo in lieu of the required processing fee. Should you have any questions concerning this matter, please feel free to contact me at (252) 8082808. Sincerely, O Doug Huggett Major Permits Coordinator Cc: Heather Coats, DCM Wilmington 400 Commerce Avenue, Morehead City, North:Carolina 28557 Phone: ` 252-808-28081 FAX: 252-247-33301 Internet: www riccoastalmanagement.net An Equal Opportunity 1 Affirmative Action Employer - 50% Recycled .l 10% Post Consumer Paper Project Narrative The Brunswick Steam Electric Plant (BSEP) has a fish diversion structure at the mouth of the cooling water intake canal located on the Cape Fear River in Southport, NC. The fish diversion structure was originally installed in 1982 and is a "V" shaped structure that spans the mouth of the intake canal at a distance of approximately 400 feet. The diversion structure has fence facings which are designed to prevent the entrance of fish and turtles into the intake canal. The fish diversion structure has wing walls which extend into the shoreline on each end of the structure. Fencing is also present beyond the wing walls and continues along the shoreline. The purpose of the fencing is to also prevent the entrance of fish and turtles into the intake canal at high tides. Recent meteorological events have eroded a portion of the shoreline that joined the wing wall on the north side of the structure and have also caused the fencing to be undermined, and create an open water gap of approximately 60 feet. The BSEP has re-established the connection of the wing walls with the shoreline and closed the gap by installing approximately 96 linear feet of sheet pilings with a depth of approximately 30 feet. The steel sheet pile tip elevation matches the bottom of the existing pre- -stressed concrete pile cap on the existing wing wall (~ EL. 4'). Rip rap (18"-36" greatest dimension) was used to stabilize areas vulnerable to erosion. Approximately 80 cubic yards of rip rap was placed along the shoreline where the steel sheet pile intersects the bank. Approximately 5 cubic yards was placed where the existing pre-stressed concrete pile overlaps the steel sheet pile. The existing turtle blocker mesh fencing damaged by the erosion was repaired by installing replacement fencing along the shoreline. The replacement fencing was routed in the same manner as the originally installed configuration to prevent the entrance of fish and turtles into the intake canal at high tides. During the repair of the structure it was noticed that at high tide water was coming in behind the newly placed rip rap, which has raised concerns about another potential wash out of the shoreline during heavy storms. This letter requests that the BSEP be allowed to install an additional 40 cubic yards of rip rap along the shoreline to prevent additional water washing in behind the existing rip rap. This new rip rap will be placed along a shoreline that is perpendicular to the rip rap that was just installed. Please see the attached drawings and photographs for further details. LOCATION MAP lk - 7 ' , 3> ' N ?f u CL 77) .. /? U w w Q W I-- U H z m z LL P 1 ?l i t r., 971-1' f.