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HomeMy WebLinkAbout20170925 Ver 1_401 Application_201707171 amec foster wheeler Amec Foster Wheeler Environment and Infrastructure 4021 Stirrup Creek Drive, Suite 100 Durham, North Carolina 27703 Phone: (919) 381-9900 Fax: (919) 381-9901 LETTER OF TRANSMITTAL - - - TO: Ms. Karen Higgins DATE: July 24, 2017 1 v ti 7 NC DWR, 401 & Buffer Permitting Branch 512 North Salisbury Street PROJECT NO.: 7810-16-0762 Raleigh, NC 27604 PROJ. NAME: Belews Creek Steam Station PCN Application Saddle Dikes 1 and 2 Improvements SUBJECT: NWP 3 PCN Application WE TRANSMIT TO YOU: HEREWITH UNDER SEPARATE COVER SUBJECT: ACTION: SENT BY: ®DRAWINGS ❑FOR YOUR INFORMATION ❑MAIL ❑SPECIFICATIONS ®FOR YOUR COMMENT OR APPROVAL ❑CERTIFIED MAIL ❑CALCULATIONS ❑RETURNED FOR CORRECTION: RESUBMIT ❑EXPRESS ❑REPORT ❑APPROVED AS NOTED ❑COURIER ❑COST ESTIMATE []AS REQUESTED ®HAND DELIVERED ❑AS NOTED ❑FACSIMILE: CC: By: itherspoon Senior Ecologist Direct Phone: 919-381-1402 CONFIDENTIALITY NOTICE: This message is intended only for the use of the individual or entity to which it is addressed, and may contain information that is privileged, confidential, and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient, or the employee or agent responsible for delivering the message to the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by telephone and return the original message to us at the above address via the U.S. Postal Service. Thank you. If transmission is not received in good order, please call Josh Witherspoon at (919) 381-1402 Documents Form Revised !0/18/01 o�oF wn rFgO� M o Office Use Only: Corps action ID no. DWQ project no. Form Version 1.4 January 2009 Page 1 of 10 PCN Form — Version 1.4 January 2009 Pre -Construction Notification (PCN) Form A. Applicant Information 1. Processing 1a. Type(s) of approval sought from the Corps: ❑ Section 404 Permit ❑ Section 10 Permit 1b. Specify Nationwide Permit (NWP) number: 3 or General Permit (GP) number: 1 c. Has the NWP or GP number been verified by the Corps? ❑ Yes ❑X No 1 d. Type(s) of approval sought from the DWQ (check all that apply): ❑X 401 Water Quality Certification — Regular ❑ Non -404 Jurisdictional General Permit ❑ 401 Water Quality Certification — Express ❑ Riparian Buffer Authorization 1 e. Is this notification solely for the record because written approval is not required? For the record only for DWQ 401 Certification: ❑ Yes X❑ No For the record only for Corps Permit: ❑ Yes ❑X No 1f. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts? If so, attach the acceptance letter from mitigation bank or in -lieu fee program. ❑ Yes ❑X No 1g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1h below. ❑ Yes ❑X No 1 h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ❑ Yes 0 No 2. Project Information 2a. Name of project: Belews Creek Saddle Dikes 1 & 2 Improvements 2b. County: Stokes 2c. Nearest municipality / town: Walnut Cove, NC / Stokesdale, NC; Township of Belews Creek 2d. Subdivision name: N/A 2e. NCDOT only, T.I.P. or state project no: N/A 3. Owner Information 3a. Name(s) on Recorded Deed: Duke Energy Corporation 3b. Deed Book and Page No. Deed Book 535, Page No. 965 3c. Responsible Party (for LLC if applicable): js js=W12 lopL5 3d. Street address: 3195 Pine Hall Road 3e. City, state, zip: Belews Creek, NC 27009 JUL 3f. Telephone no.: 919-546-7457 3g. Fax no.: 401 & BUFFER PERMITTING 3h. Email address: Page 1 of 10 PCN Form — Version 1.4 January 2009 4. Applicant Information (if different from owner) 4a. Applicant is: ❑ Agent ❑X Other, specify: Duke Energy Employee 4b. Name: Steve Cahoon 4c. Business name (if applicable): Duke Energy 4d. Street address: 410 S. Fayetteville Street 4e. City, state, zip: Raleigh, NC 27601 4f. Telephone no.: 919-546-7457 4g. Fax no.: 919-546-3669 4h. Email address: steve.cahoon@duke-energy.com 5. Agent/Consultant Information (if applicable) 5a. Name: 5b. Business name (if applicable): 5c. Street address: 5d. City, state, zip: 5e. Telephone no.: 5f. Fax no.: 5g. Email address: Page 2 of 10 B. Project Information and Prior Project History 1. Property Identification 1a. Property identification no. (tax PIN or parcel ID): 6982-00-64-2715 1 b. Site coordinates (in decimal degrees): Latitude: 36.31829834 Longitude: 80.0348 1c. Property size: 6099 acres 2. Surface Waters 2a. Name of nearest body of water to proposed project: Belews Lake 2b. Water Quality Classification of nearest receiving water: C 2c. River basin: Roanoke River 3. Project Description 3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this application: Belews Creek Steam Station includes a cooling lake, referred to as Belews Lake, that has five impounding structures functioning and permitted as dams. Belews Lake actually extends over several North Carolina counties, and the lake's dams are partly situated in Stokes County and partly situated in Rockingham County. 3b. List the total estimated acreage of all existing wetlands on the property: 29 3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: 142980 3d. Explain the purpose of the proposed project: The purpose is to remove vegetation and install flumes at Saddle Dike No.1 and Saddle Dike No. 2. See Attachment A for additional details. 3e. Describe the overall project in detail, including the type of equipment to be used: See project narrative in Attachment A. Typical construction equipment included tracked/wheeled excavators and dump trucks may be used. 4. Jurisdictional Determinations 4a. Have jurisdictional wetland or stream determinations by the Corps or State been requested or obtained for this property / project (includingall prior phases)in the past? ❑ Yes ❑X No ❑ Unknown Comments: 4b. If the Corps made the jurisdictional determination, what type of determination was made? El Preliminary F1 Final 4c. If yes, who delineated the jurisdictional areas? Name (if known): Amec Foster Wheeler Agency/Consultant Company: Amec Foster Wheeler Other: 4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation. 5. Project History 5a. Have permits or certifications been requested or obtained for this project (including all prior phases) in the past? ❑ Yes ❑X No ❑ Unknown 5b. If yes, explain in detail according to "help file" instructions. 6. Future Project Plans 6a. Is this a phased project? ❑ Yes Q No 6b. If yes, explain. Page 3 of 10 PCN Form — Version 1.4 January 2009 C. Proposed Impacts Inventory 1. Impacts Summary 1 a. Which sections were completed below for your project (check all that apply): ❑X Wetlands ❑X Streams — tributaries ❑ Buffers ❑ Open Waters ❑ Pond Construction 2. Wetland Impacts If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted. 2a. Wetland impact number Permanent (P) or Temporary T 2b. Type of impact 2c. Type of wetland 2d. Forested 2e. Type of jurisdiction Corps (404,10) or DWQ (401, other) 2f. Area of impact (acres) W1 P Fill Headwater Wetland Yes Corps 0.03 W2 Choose one Choose one Yes/No W3 Choose one Choose one Yes/No W4 Choose one Choose one Yes/No W5 Choose one Choose one Yes/No W6 Choose one Choose one Yes/No 2g. Total Wetland Impacts: 0.03 2h. Comments: 3. Stream Impacts If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this question for all stream sites impacted. 3a. Stream impact number Permanent (P) or Temporary (T) 3b. Type of impact 3c. Stream name 3d. Perennial (PER) or intermittent (INT)? 3e. Type of jurisdiction 3f. Average stream width (feet) 3g. Impact length (linear feet) S1 P Fill UT Belews Lake PER Corps 3 81 S2 P Fill UT Belews Lake PER Corps 3 21.4 S3 P Fill UT Belews Lake PER Corps 3 25.5 S4 Choose one S5 Choose one S6 Choose one 3h. Total stream and tributary impacts 128 3i. Comments: The installation of a trapezoidal flume will resultl in impacts to 0.03 acre of Wetland SSS and impacts to approximately 81 linear feet of Stream 137. The installation of a trapezoidal flume will result in impacts to approximately 21.4 and 25.5 linear feet of Stream 139. Page 4 of 10 PCN Form — Version 1.4 January 2009 4. Open Water Impacts If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of the U.S. then indivi ually list all open water impacts below. 4a. Open water impact number Permanent (P) or Temporary T 4b. Name of waterbody (if applicable) 4c. Type of impact 4d. Waterbody type 4e. Area of impact (acres) 01 Choose one Choose 0.003 02 Choose one Choose 0.005 03 Choose one Choose 04 Choose one Choose 4f. Total open water impacts 0.008 4g. Comments: 5. Pond or Lake Construction If pond or lake construction proposed, the complete the chart below. 5a. Pond ID number 5b. Proposed use or purpose of pond 5c. 5d. 5e. Wetland Impacts (acres) Stream Impacts (feet) Upland (acres) Flooded Filled Excavated Flooded Filled Excavated P1 Choose one P2 Choose one 5f. Total: 5g. Comments: 5h. Is a dam high hazard permit required? ❑ Yes ❑ No If yes, permit ID no: 51. Expected pond surface area (acres): 5j. Size of pond watershed (acres): 5k. Method of construction: 6. Buffer Impacts (for DWQ) If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts below. If any impacts require mitigation, then you MUST fill out Section D of this form. 6a. Project is in which protected basin? ❑ Neuse ❑ Tar -Pamlico ❑ Catawba ❑ Randleman ❑ Other: 6b. Buffer Impact number – Permanent (P) or T 6c. Reason for impact 6d. Stream name 6e. Buffer mitigation required? 6f. Zone 1 impact (square feet) 6g. Zone 2 impact (square feet —Temporary B1 Yes/No B2 Yes/No B3 Yes/No B4 Yes/No B5 Yes/No B6 Yes/No 6h. Total Buffer Impacts: 6i. Comments: Page 5 of 10 D. Impact Justification and Mitigation 1. Avoidance and Minimization 1 a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project. The locations of the proposed trapezoidal flumes were designed to minimize impacts wetlands and streams the the greatest extent practicable while allowing for the flumes to function properly. 1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques. Vegetation that is removed will be disposed of in upland areas. Silt fencing will be utilized around all construction tree removal activities to prevent sediment from leaving the limits of disturbance (LOD). 2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State 2a. Does the project require Compensatory Mitigation for impacts to Waters of the U.S. or Waters of the State? ❑ Yes Q No 2b. If yes, mitigation is required by (check all that apply): ❑ DWQ ❑ Corps 2c. If yes, which mitigation option will be used for this project? ❑ Mitigation bank El Payment to in -lieu fee program ❑ Permittee Responsible Mitigation 3. Complete if Using a Mitigation Bank 3a. Name of Mitigation Bank: 3b. Credits Purchased (attach receipt and letter) Type: Choose one Type: Choose one Type: Choose one Quantity: Quantity: Quantity: 3c. Comments: 4. Complete if Making a Payment to In -lieu Fee Program 4a. Approval letter from in -lieu fee program is attached. ❑ Yes 4b. Stream mitigation requested: linear feet 4c. If using stream mitigation, stream temperature: Choose one 4d. Buffer mitigation requested (DWQ only): square feet 4e. Riparian wetland mitigation requested: acres 4f. Non -riparian wetland mitigation requested: acres 4g. Coastal (tidal) wetland mitigation requested: acres 4h. Comments: 5. Complete if Using a Permittee Responsible Mitigation Plan 5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan. Page 6 of 10 PCN Form — Version 1.4 January 2009 6. Buffer Mitigation (State Regulated Riparian Buffer Rules) — required by DWQ 6a. Will the project result in an impact within a protected riparian buffer that requires ❑ Yes ❑ No buffer mitigation? 6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the amount of mitigation required. 6c. 6d. 6e. Zone Reason for impact Total impact Multiplier Required mitigation (square feet) (square feet) Zone 1 3 (2 for Catawba) Zone 2 1.5 6f. Total buffer mitigation required: 6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank, permittee responsible riparian buffer restoration, payment into an approved in -lieu fee fund). 6h. Comments: Page 7 of 10 E. Stormwater Management and Diffuse Flow Plan (required by DWQ) 1. Diffuse Flow Plan 1a. Does the project include or is it adjacent to protected riparian buffers identified ❑ Yes ❑ No within one of the NC Riparian Buffer Protection Rules? 1b. If yes, then is a diffuse flow plan included? If no, explain why. ❑ Yes ❑ No 2. Stormwater Management Plan 2a. What is the overall percent imperviousness of this project? 0 2b. Does this project require a Stormwater Management Plan? ❑ Yes ❑X No 2c. If this project DOES NOT require a Stormwater Management Plan, explain why: Stormwater will not be generated by the proposed project. 2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan: 2e. Who will be responsible for the review of the Stormwater Management Plan? 3. Certified Local Government Stormwater Review 3a. In which localgovernment's jurisdiction is thisproject? ❑ Phase II ❑ NSW 3b. Which of the following locally -implemented stormwater management programs ❑ USMP apply (check all that apply): ❑ Water Supply Watershed ❑ Other: 3c. Has the approved Stormwater Management Plan with proof of approval been El Yes ❑ No attached? 4. DWQ Stormwater Program Review ❑Coastal counties ❑HOW 4a. Which of the following state -implemented stormwater management programs apply ❑ORW (check all that apply): E] Session Law 2006-246 ❑ Other: 4b. Has the approved Stormwater Management Plan with proof of approval been ❑ Yes ❑ No attached. 5. DWQ 401 Unit Stormwater Review 5a. Does the Stormwater Management Plan meet the appropriate requirements? ❑ Yes ❑ No 5b. Have all of the 401 Unit submittal requirements been met? ❑ Yes ❑ No Page 8 of 10 PCN Form — Version 1.4 January 2009 F. Supplementary Information 1. Environmental Documentation (DWQ Requirement) 1a. Does the project involve an expenditure of public (federal/state/local) funds or the ❑ Yes ❑X No use of public (federal/state) land? 1b. If you answered "yes" to the above, does the project require preparation of an environmental document pursuant to the requirements of the National or State ❑ Yes ❑ No (North Carolina) Environmental Policy Act (NEPA/SEPA)? 1c. If you answered "yes" to the above, has the document review been finalized by the State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval ❑ Yes ❑ No letter.) Comments: 2. Violations (DWQ Requirement) 2a. Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards, ❑Yes Q No or Riparian Buffer Rules (15A NCAC 2B .0200)? 2b. Is this an after -the -fact permit application? El Yes Q No 2c. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s): 3. Cumulative Impacts (DWQ Requirement) 3a. Will this project (based on past and reasonably anticipated future impacts) result in El Yes Q No additional development, which could impact nearby downstream water quality? 3b. If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent DWQ policy. If you answered "no," provide a short narrative description. 4. Sewage Disposal (DWQ Requirement) 4a. 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. The project will not generate wastewater. There is no sewage disposal or treatment involved with this project. Page 9 of 10 PCN Form — Version 1.4 January 2009 5. Endangered Species and Designated Critical Habitat (Corps Requirement) 5a. Will this project occur in or near an area with federally protected species or ❑ yes No habitat? 5b. Have you checked with the USFWS conceming Endangered Species Ad Oyes ®No mph Sc. If yes, indicate the USFWS Field Office you have contacted. 5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat? USFWS Information, Planning, and Conservation System (IPaC) website and the N.C. Natural Heritage Program (NCNHP) Natural Heritage Database Search interactive website. 8. Essential Fish Habitat (Corps Requirement) Be. Will this project occur in or near an area designated as essential fish habitat? ❑ Yes ® No fib. What data sources did you use to determine whether your site would impact Essential Fish Habitat? htlWJArww. habltaLnoaa.govtprotectlon/aDVefhmappwAndexJ*nI 7. Historic or Prehistoric Cultural Resources (Corps Requirement) 7a. Will this project occur in or near an area that the state, federal or tribal governments have designated as having historic or cultural preservation 0 Yes ®No status (e.g., National Historic Trust designation or properties significant in North Carolina history and archaeology)? 7b. What data sources did you use to determine whether your site would impact historic or archeological resources? N.C. Dept. of Cultural Resources, State Hislorb Preservation Office (SHPO) Interactive website (HPOWEB). 8. Flood Zone Designation (Corps Requirement) Be. Will this project occur in a FEMA -designated 100 -year floodplain? ❑ Yes ® No 8b. if yes, explain how project meets FEMA requirements: 8c. Whet source(s) did you use to make the floodplain determination? NC Flood Maps. FEMA/FIRM number 3710688200K, dated July 3, 2007. ce.V00 71,? V/7 Applicant/Agent's Printed Name Applicant/Agenfs Signature Date (Agent's signature is valid only if an authorization letter from the applicant isprovided.) Page 10 of 10 USACE Pre -Construction Notification — NWP 3 Duke Energy Corporation Belews Creek Steam Station Saddle Dikes 1 & 2 Improvements Stokes County, NC ATTAC H M E NTS Attachment A Figure 1 Site Location Map Figure 2 USGS Topographic map Figure 3 NRCS Soils Map Figure 4 National Wetland Inventory Map Figure 5 Floodplain Map Figure 6 Jurisdictional Waters Map Saddle Dikes 1 & 2 Improvements Drawings ►_r■r_f i:I 140rr_l The Belews Creek Steam Station is located in Belews Creek, North Carolina, which is in Stokes County. The Station includes a cooling lake, referred to as Belews Lake, that has five impounding structures functioning and permitted as dams. Belews Lake actually extends over several North Carolina counties, and the lake's dams are partly situated in Stokes County and partly situated in Rockingham County. These dam structures include the Main Dam (ROCKI-236), Saddle Dike No. 1 (STOKE -117), Saddle Dike No. 2 (STOKE -118), Saddle Dike No. 3 (STOKE -119), and Saddle Dike No. 4 (ROCKI-235). Purpose of this project is to remove existing trees including root -balls on the upstream slope of Saddle Dike No. 1. Trees growing on dams are considered a risk due the potential for uprooting during a storm events causing loss of earthen embankment sections. Tree roots provide preferential seepage paths and over time could result in increased seepage flow and associated loss of embankment material. Also included in the scope of work is installation of 1 trapezoidal flume at the downstream toe of Saddle Dike No. 1 and 2 trapezoidal flumes at the downstream toe of Saddle Dike No. 2. These flumes are needed to quantitatively monitor the seepage emerging at the toe of these embankments on a bi-weekly basis. This monitoring is required to identify any potential Dam safety concerns due to changes in seepage volume and enables the owner to proactively take actions to avoid catastrophic events. Installation of such flumes is a good Dam Safety practice that is widely accepted by agencies such as USACOE, FEMA, USBR. �i.in!,r I, -I k _ , © OpenStreetMap (and) contributors, CC -BY -SA Belews Lake 0 Sources: Esri, HERE, DeLorme, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), swisstopo, Mapmylndia, © OpenStreetMap contributors, and the GIs User Community Saddle Dikes 1 & 2 Improvements Legend 0 500 1,000 2,000 Site Location Map QProject Area Feet (•� DUKE ameL Belews Creek Steam Station ENERGY® foster 1 inch = 1,000 feet Stokes County, NC wheeler AMEC FW PROJECT NO: 7810-16-0762.01 FIGURE NO: Pine Hall Oc OpenStreetMap (and) contributors, � ^ CC -BY -SA �. 1 N LA_ - w • , _ ( r a i ,•, Saddle Dike 2w' Gott .� �' ", � ,•%'r 3 ' `` 1 r �W • Y Y Belews Lake' a- ry a ,,Saddle Dike 1 �,,.. � � ..--r•J ,,^"' a. , JAI. If �r h.. �`"-� �"'`� `_,i �•�/ ,/y � _ 3 c�/.•/S'3' y` �«r V.`'�I ,d �✓ �`1 '"(�j(��'/}'•.� ���• � . e f • _. .';��► \ 4 v,,., r' Copynght ©2013 National Geographic Society, i -cubed. Saddle Dikes 1 & 2 Improvements Legend 0 500 1,000 2,000 USGS Topographic Map ( DUKE amec Q ProjectArea 1 inch = 1,000 feet Feet Belews Creek Steam Station ENERGY foster Stokes County, NC wheeler AMEC FW PROJECT NO: 7810-16-0762.01 FIGURE NO: 2 •F �'J y' f �$" \� hWO tY t i "."\r 'Cr+^ 4,rA �"`'�", j 'a'�Y�A- �~ i •' � � "L f i _ 4 +� t,. %s `w'' � a �Vc . 4 t (�} ����•. ��,#� ` �`` "ire i1�' ,, �� �r a*� � ,.i „• .. y , , s•ii .. �' t, © OpenStreetMap (and) contributors,a,�", s_*. CC -BY -SA *04 1� t1 • gyp, rYy� � amec foster wheeler `i•}:'.`a, c 1+�. Y.. ., .n.. ifr'•.-.wY!'F 4�M... :trt 3..st.,�._is �14 aR J 4 't •"r^ Cis1A,t "!t^' "} . �•, ].: a�... PF A Y v R' SUI t w J hi f �� d`♦Yn. � � - • }a FsD2 ` Legend Project Area Soils Saddle Dikes 1 & 2 Improvements 0 250 500 1,000 NRCS Soils Map Feet 1 inch = 500 feet Belews Creek Steam Station Stokes County, NC AMEC FW PROJECT NO: 7810-16-0762.01 FIGURE NO: 3 DUKE ENERGY . r I {.' t _� r!J"•` ' d'4 `y�,`it. y,� C i l� �t $$ .�vr81`� � .. Ac , ri 'Y" C 4K TM \ \ey OpenStreetMap (and) contributors, CC -BY -SA 1 PI -1 !01 iA P442� I N, 103 J�, Alar iq T, "AWN 54 ACX 14 -jj- tl V11 rAIA"T Saaule;LJIK-' M 0770W MW MM M N N 'Ire, 0 VIA, Fri ,4 IA OFA 7 kv • Saddle Dikes 1 & 2 Improvements Legend 0 250 500 1,000 Floodplain Map amec Project Area 1 inch = 500 feet Feet Belews Creek Steam Station foster 100yr Flood Boundary Stokes County, NC wheeler AMEC FW PROJECT NO: 7810-16-0762.01 FIGURE NO: 5 4DUKE ENERGY, OpenStreetMap (and) contributors, CC -BY -SA R• ,�, 4f �� � „��" �? ��y3 132 Xl� fi Al "k �A W". A—, �" , Vt' A e 4 , K'l S r4' t C.4 Aw- N'a iR z1v '411KY -Ak �v 74, N N" v 41" 'f ti m L S' 0.03ac 18 SILT FENCE VEGETATION REMOVAL AREA 0 1 / (0.49 ACRES) / I ;1 TRAPEZOIDAL FLUME (SEE DRAWINGS NOS. 11-13) 80.8ft —� LIMIT OF SURVEY \ (SEE NOTE 1) JJJ WATTLE BREAK / REPAIR EROSION AREAS O I ALONG GROIN DITCHES `l.,l X- / WITH ADDITIONAL RIPRAP AS NEEDED zx / SPOT REPAIR BARE AREAS OF DOWNSTREAM SLOPE WITH PERMANENT HYDROSEED / CONSTRUCTION ACCESS TO CONSTRUCTION 4 RAKE TO BARE EARTH SADDLE DIKE 1 TOE AREA ENTRANCE 18 AND APPLY PERMANENT VEGETATION \ — HYDROSEED REM!(0.77 AREA y2 \ � � ACRES) GRAVEL ROAD (SADDLE DIKE NO. 1 CREST) 18 WATTLE BREAK �� .�— X X J REV. 0 X 4 / 4 /f \ JJ / 4 WATTLE BREAK 18 X / XX X /g � X / 2 / 4' CONSTRUCTION ACCESS TO X 18 / SADDLE DIKE N0. 2 TOE AREA / - SEE DRAWING N0. 10 X X 4f / X CONSTRUCTION / 4 / STAGING AREA (/ r � � AREA (0.1.1 5 AC.) \ REMOVE OLD STRUCTUREX / FOUNDATION AND RESTORE ` AREA (SEE NOTE 9) X CC � �.r-•i„ X � X X — sF: X �iCX \\ �� 0 I 40 80 -SL�� XXu. X X X SCALE IN FEET LIMITS OF-/ -�' Y =� ` X WATTLE BREAK 2 X / fURBANCE 18 X�` 18 SILT FENCE 1 . � XX X X xx XX X / X / --X \ X X X X % XX X X 200 LF TEMPORARY i 2 3 X —\ TURBIDITY CURTAIN 19 19 19 \%(� X (SEE NOTE 6) X BELEWS LAKE NORMAL WATER \\ XX ELEV: 724.36 -FT (NAVD88) `)0< pC X X X X /� X / X X LIMIT OF SURVEY EXISTING MAJOR CONTOURS EXISTING MINOR CONTOURS EXISTING TREE UNE GRAVEL ROAD X SURVEY POINT _ LIMITS OF DISTURBANCE p� PROPOSED TURBIDITY CURTAIN EXISTING RIPRAP VEGETATION CLEARING AREA SF — SILT FENCE WATTLE BREAK NOTES: 1. TOPOGRAPHIC SURVEY OF THE SITE INSIDE THE LIMIT OF SURVEY IS BASED ON DATA COMPILED BY S.D. PUCKETT AND ASSOCIATES, INC. ONOCTOBER 6-9, 2015. TOPOGRAPHIC SURVEY OUTSIDE OF THE LIMITS OF SURVEY IS BASED ON NCDOT UDAR GIS DATA. 2. HORIZONTAL DATUM IS NORTH CAROLINA STATE PLANE NAD83 AND VERTICAL DATUM IS NAVD88. 3. TOTAL AREA OF LAND DISTURBANCE IS 1.81 ACRES. 4. CONTRACTOR TO COORDINATE WITH OWNER ON LOCATION OF CONSTRUCTION LAYDOWN/STAGING/STOCKPILE AREAS AND CONSTRUCTION ENTRANCE; HOWEVER, THESE AREAS AND THE CONSTRUCTION ENTRANCE MUST BE LOCATED WITHIN THE DELINEATED LIMITS OF DISTURBANCE. 5. THE RECEIVING WATER BODIES FOR STORMWATER DISCHARGES ARE BELEWS LAKE AND THE DAN RIVER MICH ARE PART OF THE ROANOKE RIVER BASIN. 6. PROVIDE SANDBAG COFFERDAM AT SHOREUNE AS NEEDED FOR TREE REMOVAL TO PROTECT WORK AREAS FROM WATER INTRUSION. DEWATER WORK AREA BY PUMPING. 7. EARTHWORK ALONG THE SHORELINE AND WITHIN NEAR PROXIMITY OR BELOW THE POOL LEVEL SHALL REQUIRE THE INSTALLATION OF A TEMPORARY TURBIDITY CURTAIN OR OTHER SUCH DEVICES (APPROVED BY THE ENGINEER) TO PROTECT THE DISCHARGE WATER FROM EXCESSIVE SUSPENDED PARTICLES. 8. NORMAL WATER ELEV. IS BASED ON THE ELEVATION OF TAINTOR GATES AT SPILLWAY. 9. FOUNDATION REMNANTS FROM AN OLD STRUCTURE ONCE IN-PLACE ALONG EAST CREST OF SADDLE DIKE NO. 1 SHALL BE REMOVED. ALL BELOW GRADE STRUCTURES SHALL BE FULLY REMOVED AND VOID SPACES/EXCAVATIONS BACKFILLED IN ACCORDANCE VATH THE 02330 EARTHWORK SPECIFICATIONS. 0 SITE IMPROVEMENTS PLAN - SADDLE DIKE NO. 1 DUKE ENERGY ISSUE NOS. BC -402 & BC -419 (PHASE II) SADDLE DIKE NOS. 1,2 & 3 (STOKE -117,-118 & -119) �NCARD �0� oFESS /a��'yy SEAL 026889 2(to -zo(' BOG FYGINEE� P�� C� AS W G STOKES COUNTY, NORTH CAROLINA FOP BELEWS CREEK STEAM STATION DUKE ENERGY® SCALE: 1'•40' DES: CWl DW0 TYPE: CVL DFTR: Cwo JOB N0: 60519806 CNKD: BAB DATE: 02-10-2017 ENGR: JSS FILENAME: 10_Site Improvements Plan.Owp JAPPO: DNC OWO SIZE DRAWING NO. I REVISIT ASHD 2 4.0'xJS.S DRAWING NO. 09 0 0