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HomeMy WebLinkAbout20060009 Ver 2_401 Application_20090813AUG 1 .3 2?G9 8000 Regency Parkway, Suite 200 TUNDSANDST tK jLKU,r fl to " O 009 V a? Cary, North Carolina 27511 ORMWA*RBRANCH Phone: 919-463-5488 Fax: 919-463-5490 Letter of Transmittal To: 401 Oversight/Express Review Permitting S.O. No.: 0266 P At I Raleigh Regulatory Field Office Department of the Army, Corps of Engineers .:-------- 2321 Crabtree Blvd, Suite 250 Lick Creek Stream Restoration and Project: Enhancement Project Raleigh, NC 27604 Attn: Cyndi Karoly /Eric Kulz Date: August 7, 2009 We are forwarding the following: ® Attached ? Under Separate Cover ? Other DWG. NO. NO. COPIES TITLE OR DESCRIPTION COMMENTS 5 PCN Form 1 Check for permitting fee 5 Landowner Authorization Form 5 Design Plans 5 Figures 5 Photo Log THESE ARE TRANSMITTED as checked below: ? As requested ? No exception taken ® For review and comment ? Rejected - See remarks ? For your information ? Proceed subject to corrections noted ? Revise and resubmit ? Submit specified items ? Other GENERAL COMMENTS: Please find enclosed an application for a 401 permit along with supporting documentation for the Lick Creek Stream Restoration Project in Durham County. If you have any questions, please give me call at By: (919) 459-9044. Title: Page: Joshua White, PG Geomoroholooist 1 Of 1 Challenge August 7, 2009 Mr. Eric Alsmeyer Raleigh Regulatory Field Office Department of the Army, Corps of Engineers 3331 Heritage Trade Drive, Suite 105 Wake Forest, NC 27587 Ms. Cyndi Karoly/Eric Kulz 401 Oversight/Express Review Permitting Unit 2321 Crabtree Blvd, Suite 250 Raleigh, NC 27604 8000 Regency Parkway, Suite 200 Cary, North Carolina 27518 Phone: 919-463-5488 Fax: 919-463-5490 Re: Lick Creek Stream Restoration and Enhancement Project 401/404 Pre-Construction Notification Application Dear Mr. Alsmeyer, Ms. Karoly, and Mr. Kulz: Enclosed for your consideration and approval is the Pre-Construction Notification for the US Army Corps nationwide permit 27 and the Division of Water Quality's general certification 3689 for stream restoration, enhancement, and stabilization for the Lick Creek Stream Restoration and Enhancement Project. This project is located in Durham County. Please note that we have requested the application be reviewed before mid-September 2010 to enable site preparation to take place so that the riparian buffer may be planted during the appropriate dormant season at the end of this year. Thank you in advance for your assistance. The project meets the DWQ definition of stream restoration and funding was provided by grant funding. A permitting fee has been included with this package. This is not a stream mitigation project. If I can be of any further assistance, please contact me at (919) 459-9044. S5sa J ite, PG Enclosures: PCN, Landowner Authorization Form, Figures, Photolog, Construction Specs, and Check for fees oto- oooq Ua O?pF W A T?,9pG O < Office Use Only: Corps action ID no. DWQ project no. Form Version 1.0 November 2008 Pre-Construction Notification (PCN) Form A. Applicant Information I 1. Processing I a. Type(s) of approval sought from the Corps: ®Section 404 Permit ? Section 10 Permit 1b. Specify Nationwide Permit (NWP) number: 27 or General Permit (GP) number: 1c. Has the NWP or GP number been verified by the Corps? ® Yes ? No 1d. Type(s) of approval sought from the DWQ (check all that apply): ® 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 ® No For the record only for Corps Permit: ? Yes ® No If. 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 ® No 1g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h below. ? Yes ® No 1h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ? Yes ® No 2. Project Information 2a. Name of project: Lick Creek Stream Restoration 2b. County: Durham 2c. Nearest municipality / town: Durham 2d. Subdivision name: 2e. NCDOT only, T.I.P. or state project no: N/A 3. Owner Information 3a. Name on Recorded Deed: See Attached 3b. Deed Book and Page No. See Attached 3c. Responsible Party (for LLC if applicable): N/A 3d. Street address: See Attached 3e. City, state, zip: See Attached 3f. Telephone no.: See Attached 3g. Fax no.: See Attached 311. Email address: See Attached Page 1 of 12 PCN Form - Version 1.0 November 2008 Version Section A. Applicant Information, continued 4. Applicant Information (if different from owner) 4a. Applicant is: ? Agent ® Other, specify: Grant recipient 4b. Name: Eddie Culberson 4c. Business name (if applicable): Durham County Soil and Water Conservation District 4d. Street address: 721 Foster Street 4e. City, state;°ip: " Durham, NC, 27701 4f. Telephone no.: 919-560-0558 4g. Fax no.: 919-560-0563 4h. Email address: eculberson@co.durham.nc.us 5. Agent/Consultant Information (if applicable) 5a. Name: Joshua White 5b. Business name (if applicable): Michael Baker Engineering, Inc. 5c. Street address: 8000 Regency Parkway, Suite 200 5d. City, state, zip: Cary, NC, 27511 5e. Telephone no.: 919-463-5488 5f. Fax no.: 919-463-5490 5g. Email address: jawhite@mbakercorp.com Page 2 of 12 PCN Form - November 2008 Version B. Project Information and Prior Project History 1. Property Identification 1a. Property identification no. (tax PIN or parcel ID): See Attached 1 b. Site coordinates (in decimal degrees): See Attached'N - See Attached'W 1c. Property size: See Attached acres 2. Surface Waters 2a. Name of nearest body of water (stream, river, etc.) to Rocky Branch flows Lick Creek just below the project. proposed project: Lick Creek then flows into Falls Lake. 2b. Water Quality Classification of nearest receiving water: WS-IV; NSW 2c. River basin: Neuse 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: The stream is deeply insised below the rooting depth and eroding throughout the project area. The stream is presently widening rapidly and mass wasting of bank materials are being transported downstream at a high rate. Many large woody debris jams are contributing to the bank erosion. Please refer to the attached documents for further information on the current conditions of the site. 3b. List the total estimated acreage of all existing wetlands on the property: -10 acres of wetlands due to beaver impoundment which encompasses a very small area inside the conservation easement. 3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: 4,062 3d. Explain the purpose of the proposed project: Durham Soil and Water Conservation District proposes to restore 3,551 linear feet (LF) of stream along Lick Creek and two unnamed tributaries. 3e. Describe the overall project in detail, including the type of equipment to be used: Restoration of 3,551 feet of stream along Lick Creek and two unnamed tributaries. Work to be conducted with dozers, track hoes, and other equipment typically used for stream restoration projects. 4. Jurisdictional Determinations 4a. Have jurisdictional wetland or stream determinations by the Corps or State been requested or obtained for this property / ® Yes ? No ? Unknown project (including all prior phases) in the past? 4b. If the Corps made the jurisdictional determination, what type ®Preliminary ? Final of determination was made? 4c. If yes, who delineated the jurisdictional areas? Agency/Consultant Company: Name (if known): Other: 4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation. Baker Eng. walked the site with the Corp (Oct 2009) and determined that a wetland is on the right side of the project but would not be impacted since it would be outside of the construction limits. 5. Project History 5a. Have permits or certifications been requested or obtained for ® Yes ? No ? Unknown this project (including all prior phases) in the past? 5b. If yes, explain in detail according to "help file" instructions. The permits were obtained and the funding for the construction had not been released. So nothing was done to the site. The permits expired and we are now requesting for the project to be considered again. Page 3 of 12 PCN Form - Version 1.0 November 2008 Version B. Project Information and Prior Project History 6. Future Project Plans 6a. Is this a phased project? ? Yes ® No 6b. If yes, explain. Page 4 of 12 PCN Form - November 2008 Version C. Proposed Impacts Inventory 1. Impacts Summary I a. Which sections were completed below for your project (check all that apply): ? Wetlands ® 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. 2b. 2c. 2d. 2e. 2f. Wetland impact Type of jurisdiction number - Type of Type of wetland Forested (Corps - 404, Area of impact (acres) Permanent (P) or impact (if known) DWQ - non-404, other) Temporary M W1 ? P ? T ? Yes ? No ? Corps ? DWQ W2 ? P ? T ? Yes ? No ? Corps ? DWQ W3 ? P ? T ? Yes ? No ? Corps ? DWQ W4 ? P ? T ? Yes ? No ? Corps ? DWQ W5 ? P ? T ? Yes ? No ? Corps ? DWQ W6 ? P ? T ? Yes ? No ? Corps ? DWQ 2g. Total wetland impacts 2h. Comments: The project haul roads will run along the top of bank away from the wetlands that are located at the top of the project on the right side. Therefore there will be no impacts to wetlands. 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. 3b. 3c. 3d. 3e. 3f. Stream impact Type of Stream name Perennial (PER) or Average stream width (feet) Impact number - impact intermittent (INT)? length Permanent (P) or (linear feet) Temporary (T) Restorati S1 ® P ? T on/enhan Lick Creek ® PER ? INT 20 4062 cement S2 ? P ? T ? PER ? INT S3 ? P ? T ? PER ? INT S4 ? P ? T ? PER ? INT S5 ? P ? T ? PER ? INT S6 ? P ? T ? PER ? INT 3g. Total stream and tributary impacts 4062 1 3h. Comments: Page 5 of 12 PCN Form - Version 1.0 November 2008 Version C. Proposed Impacts Inventory, continued 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 individuall list all o en water impacts below. 4a. 4b. 4c. 4d. 4e. Open water Name of impact number waterbody Type of impact Waterbody type Area of impact (acres) - Permanent (if (P) or applicable) -Temporary T 01 ?P?T 02 ?P?T 03 ?P?T 04 ?P?T 4f. Total open water impacts 4g. Comments: Page 6 of 12 PCN Form - November 2008 Version C. Proposed Impacts Inventory, continued 5. Pond or Lake Construction If and or lake construction pro osed, then complete the chart below. 5a. 5b. 5c. 5d. 5e. Wetland Impacts (acres) Stream Impacts (feet) Upland Pond ID Proposed use or (acres) number purpose of pond Flooded Filled Excavated Flooded Filled Excavated Flooded P1 P2 5f. Total 5g. Comments: 5h. Is a dam high hazard permit required? ? Yes ? No If yes, permit ID no: 5i. 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 an impacts require mitigation, then ou MUST fill out Section D of this form. 6a. ® Neuse ? Tar-Pamlico ? Other: Project is in which protected basin? ? Catawba ? Randleman 6b. 6c. 6d. 6e. 6f. 6g. Buffer impact number - Reason Buffer Zone 1 impact (square Zone 2 impact Permanent (P) for impact Stream name mitigation feet) (square feet) or Temporary required? T Stream 131 ? P ®T Restorati Lick Creek ? Yes ® No 45,000 on B2 ? P ? T ? Yes ? No B3 ?P?T ?Yes ?No 6h. Tota l buffer impacts 45,000 6i. Comments: The project will only be removing trees that have the potential for falling into the channel in the near future and for a haul road. They will be removed when sloping the banks and installing the structures. Any hardwood trees removed that are 10" or larger will be incorporated into the structures for stability and habitat. Stream restoration projects are exempt from the Neuse buffer rules. Page 7 of 12 PCN Form - November 2008 Version D. Impact Justification and Mitigation 1. Avoidance and Minimization 1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project. Proposed impacts are required to restore stream functions. Project will result in restoring approximately 3,551 linear feet (LF) of stream along Lick Creek. 1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques. Contractor will work from stream banks and only enter the channel when necessary in order to reduce the impacts. 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 ® 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 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: warm, cool, cold 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 8 of 12 PCN Form - Version 1.0 November 2008 Version D. Impact Justification and Mitigation, continued 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 buffer mitigation? ? Yes ® No 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. Zone Reason for impact Total impact (square feet) Multiplier Required mitigation (square feet) Zone 1 3 (2 for Catawba) Zone 2 1.5 Total buffer mitigation required: 6c. 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). 6d. Comments: Neuse buffer rules exempts stream restoration projects Page 9 of 12 PCN Form - November 2008 Version 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? 1 b. If yes, then is a diffuse flow plan included? ® Yes ? No 2. Determination if the Project Requires a Stormwater Management Plan 2a. Does the project require a Non-404 Jurisdictional General Permit? ? Yes ® No 2b. Is the project subject to General Certification 3704 or 3705? ? Yes ® No 3. Determination of Stormwater Review Jurisdiction 3a. Is this project subject to any of the following state-implemented stormwater ? Coastal counties management programs (check all that apply)? ? HQW ? ORW If so, attach one copy of the approval letter from the DWQ and one copy of the ? Session Law 2006-246 approved stormwater management plan. ? Other: 3b. In which local government's jurisdiction is this project? Durham County 3c. Is this local government certified to implement a state stormwater program? ? Yes ? No If so, attach one copy of the approval letter from the local government and one copy of the approved stormwater management plan (or one copy of the approved Stormwater management plan stamped as approved). 4. Information Required for DWQ 401 Unit Stormwater Review 4a. What is the overall percent imperviousness according to the most current site plan? <5% 4b. Does this project contain any areas that meet the criteria for "high density" per ? Yes ® No General Certifications 3704 and 3705? 4c. If the site is over 24% impervious and/or contains high density areas, then provide a brief narrative description of the stormwater management plan. 4d. Has a completed BMP Supplement Form with all required items been submitted ? Yes ® No for each stormwater BMP? Page 10 of 12 PCN Form - Version 1.0 November 2008 Version F. Supplementary Information 1. Environmental Documentation (DWQ Requirement) la. Does the project involve an expenditure of public (federal/state/local) funds or the ® Yes ? No use of public (federal/state) land? 1 b. 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 ® No or Riparian Buffer Rules (15A NCAC 213 .0200)? 2b. Is this an after-the-fact permit application? ? Yes ® 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 ? Yes ® 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. Page 11 of 12 PCN Form - Version 1.0 November 2008 Version F. Supplementary Information, continued 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 concerning Endangered Species Act Yes No ? impacts? C3 Raleigh 5c. If yes, indicate the USFWS Field Office you have contacted. ? Asheville 5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat? NC Natural Heritage Program Virtual Workroom 6. Essential Fish Habitat (Corps Requirement) 6a. Will this project occur in or near an area designated as essential fish habitat? ? Yes ® No 6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat? USFWS 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 ? 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? North Carolina Office of Archives and History website was searched. A letter was also sent to the NC Office of State Archaeology and the NC Historic Preservation Office. They responded that there would be no impacts. 8. Flood Zone Designation (Corps Requirement) 8a. Will this project occur in a FEMA-designated 100-year floodplain? ® Yes ? No 8b. If yes, explain how project meets FEMA requirements: The project was modeled and there is a no-rise in base flood elevations 8c. What source(s) did you use to make the floodplain determination? HEC-RAS, NC Floodplain Mapping Information System, Durham flooplain manager. T656 c, Wk l Applicant/Agent's Printed Name licant/Agent's Signature (Agent's signature is valid only if an authorization letter from the applicant Date is provided.) Page 12 of 12 PCN Form - November 2008 Version PCN Form Attachment Lick Creek Restoration Project 1. Matthew & Koren Kartes Deed Book: 004236, 004236 Page Number: 000556, 000556 Street Address: 401 Olive Branch RD, 452 Asbury CT City, State, Zip: Durham, NC 27703 Telephone no.: Fax no.: N/A Email Address: N/a Parcel ID: 193391, 193431 Latitude & Longitude: (35.967°N, 78.783°W) (35.968°N, 78.783°W) Property Size: 4.08 Acres, 0.47 Acres 2. Herbert W. & Mattie Lee Patrick Deed Book: 000375 Page Number: 000713 Street Address: 427 Olive Branch Road City, State, Zip: Durham, NC 27703 Telephone no.: Fax no.: N/A Email Address: N/A Parcel ID: 193434 Latitude & Longitude: (35.966°N, 78.783°W) Property Size: 16.3 Acres 3. Triple Crown Farm-Earnest W. Warner JR. Deed Book: 01954 Page Number: 00149 Street Address: 5438 Wake Forest HWY City, State, Zip: Durham, NC 27703 Telephone no.: Fax no.: N/A Email Address: N/A Parcel ID: 193746 Latitude & Longitude: (35.977°N, 78.778°W) Property Size: 176.2 Acres AGENT AUTHORIZATION FORM PROPERTY LEGAL DESCRIPTION: LOT NO. PLAN NO. PARCEL ID: 193746 STREET ADDRESS: 5438 Wake Forest H WY Durham, NC 27703 Please print: Triple Crown Farm - Earnest W Warner JR Property Owner: Property Owner: The undersigned, registered property owners of the above noted property, do hereby authorize Joshua White of Michael Baker Engineering, INC. (Contractor / Agent) (Name of consulting firm) to act on my behalf and take all actions necessary for the processing, issuance and acceptance of this permit or certification and any and all standard and special conditions attached. Property Owner's Address (if different than property above): 5436 Wake Forest HWY Durham, NC 27703 Telephone: 119 A14 Z 3 `f '??- We hereby certify the above information submitted in this application is true and accurate to the best of our knowledge. 4 4ouas Au orized Signature J Authorized Signature Date: Zy ° Date: AGENT AUTHORIZATION FORM PROPERLY LEGAL. DESCRIPTION: 193431, 193391 LOT NO. PLAN NO. PARCEL ID: SMEET ADDRESS: 452 Asbury CT Durham, NC 27703 Please 0"t* P Owner. Matthew Kartes Property Owner Koren Kartes The undersigned, regis6Pred property owners of the above noted property, do hereby authorize Joshua White of Michael Baker Engineering, INC. (Contractor / Agent) (Name of consorting firm) to act on my behalf and take all actions necessary for the processing, Issuance and acceptance of this permit or certification and any and all standard and special conditions attached. Property Owner's Address (if efferent than property above): 401 Olive Branch RD Durham, NC 27703 Telephone: (919) 598-8244 We hereby certify the above Information submitted in this application Is true and accurate t0 the best of our knowledge. Authorized Signature, A 1- Date: -712 Z?° Date: vv_ AGENT AUTHORIZATION FORM PROPERTY LEGAL DESCRIPTION: LOT NO. PLAN NO. PARCEL ID: STREET ADDRESS: 427 Olive Branch RD Durham, NC 27703 Please print: Mattie Lee Patrick Property Owner: Property Owner: The undersigned, registered property owners of the above noted property, do hereby authorize Joshua White (Contractor / Agent) (Name of consulting firm) to act on my behalf and take all actions necessary for the processing, issuance and acceptance of this permit or certification and any and all standard and special conditions attached. Property Owner's Address (if different than property above): Telephone: We hereby certify the above information submitted in this application is true and accurate to the best of our knowledge. Authorized Signature Authorized Signature 193434 of Michael Baker Engineering, INC. Date: ?? ` Date: N NG ge G n?. r? i Lick Creek Q,. 6e o? 'prY rt Figure 1 Project Vicinity Map Lick Creek Site Durham County )0 tvU irS Legend -° Lick Creek project reach Figure 2. Project Watershed Map Lick Creek watershed at Olive Branch Rd Lick Creek Site Lick Creek watershed at downstream extent q PA le.-, ! cf iIj x, � / C a _ 14 * Wn A: r 1 ' r l ^ Of cr Ltck Creek 'Y! GrB Crtl A!f PIC hls;; r %L .V,2 der .,. .. a,�rl Gu N ,� fA C. Durham soils Cra a MIB -A- " Soil symbol cc MIC - wsc ® GB ® PtC Figure 3. Soils Map GU PFE Y`.tic2 Lick Creek Site - w P.li.r•ti Lick Creek Photo Log Existing Condition Photos ??5 f ?L r vy. ,. 4 t - -? k w Ilk Pasture below Olive Branch Road on Patrick property. A ?:. len tree across the channel from the Kar rotnerty. Streambanks lacking woodv vegetation. adcut caused from runoff on Triple Crov property. t* 17 ream and pasture below Olive Branch Rd itrick property. Streambanks lacking woos veaetation. -bris jam and bank failure on Triple Cro% property. Erode bank on Triple Crown property. flit r r .-9 r}? N Headcut along a tributary working its way upstream trom LICK LreeK- t ripie 1 rown Ps I '10 v I , tl ;roded bank on south side of the Triple Crow? property. . WW *" - , Large woody debris jams on the Triple Crown Eroded right bank and large woody debris on south I Mt Bluff on the south side of the lower end of the Start of boulder bluff on the south side of the lower Triple Crown property. end of the Triple Crown property. !r- IV nlGdael esker Engirveerir g, inc. 400 Executive Boulevard P.O. Box 462 Elmsford, NY 10523 682 384 North Carolina Division of Water Quality 1650 Mail Service Center Raleigh NC 27699 PAYMENT SUMMARY VENDOR NO: 17329 PHONE NUMBER: VOUCHER NO: 0003 212645 VOUCHER DATE: 05/1312009 REF. DOC. REFERENCE NUMBER REF. DATE DOCUMENT DISCOUNT/ADJ NET AMOUNT AMOUNT AMOUNT INVOICE 12MAY09 05/12/2009 570.00 570.00 TOTALS 570.00 w? nwej ................. . .. Michael Baker Engk*erirg, kw_ 400 Executive Boulevard P.O. Box 462 Elmsford, NY 10523 TO THE ORDER North Carolina Division of Water Quality OF: 1650 Mail Service Center Raleigh NC 27699 Citizens Bank 919 North Market Street Wilmington, DE 19801 b2-115/311 • _ C?t64?'QAl'fE CifBCK NUAA?R' 05/13/2009 0003212645 VALID FOR 180 DAYS 11'000321264511' i:03110ii56i: 6 6 9 9000 it 5811' LICK CREEK STREAM RESTORATION PROJECT DURHAM COUNTY, NORTH CAROLINA EROSION CONTROL NARRATIVE AND TECHNICAL SPECIFICATIONS Prepared for: Durham County Soil and Water Conservation District Prepared by: Michael Baker Engineering 8000 Regency Parkway, Suite 200 Cary, NC 27518 August 2009 TABLE OF CONTENTS INTRODUCTION .................................................................................................................... 3 PROJECT DESCRIPTION ..................................................................................................... .. 3 SITE CONDITIONS ............................................................................................................... .. 3 EROSION AND SEDIMENTATION CONTROL MEASURES .......................................... .. 3 DESIGN STANDARDS ......................................................................................................... ..4 MAINTENANCE PLAN ........................................................................................................ .. 4 TECHNICAL SPECIFICATIONS ......................................................................................... .. 4 A. GENERAL SPECIFICATIONS ........................................................................................ .. 4 B. CONSTRUCTION SURVEY ............................................................................................ .. 5 C. MOBILIZATION AND DEMOBILIZATION .................................................................. .. 5 D. POLLUTION CONTROL STRUCTURES (Temporary Silt Fence) ................................ .. 6 E. PUMP-AROUND OPERATIONS ..................................................................................... .. 8 F. SPECIAL STILLING BASINS .......................................................................................... .. 8 G. IMPERVIOUS DIKE ......................................................................................................... .. 8 H. POLLUTION CONTROL SEEDING AND MULCHING ............................................... .. 8 1. PERMANENT SEED .......................................................................................................... .. 9 J. EXCAVATION, FILL, AND GRADING .......................................................................... 1 I K. STONE ............................................................................................................................... 12 L. INSTREAM STRUCTURES ............................................................................................. 13 M. FILTER FABRIC .............................................................................................................. 14 0. COIR FIBER MATTING .................................................................................................. 15 P. TRANSPLANTS ................................................................................................................ 16 Q. LIVE STAKING ................................................................................................................ 17 R. BARE-ROOT VEGETATION ......................................................................................... 18 S. SAFTEY FENCE ................................................................................................................ 19 T. CONSTRUCSTION SEQUENCE ..................................................................................... 20 INTRODUCTION This narrative is submitted as part of the proposed Sediment and Erosion Control Plan for the Lick Creek Stream Restoration and Enhancement Project. Construction of the project will involve the construction of reshaping the existing channel to restore stream function and to reduce the amount of sediment currently entering the channel through erosion. well as filling in some of the old stream channel and drainage ditches. A 401 Certification from the NC Division of Water Quality has not been obtained. The application for the 401 permit was submitted simultaneously with the Erosion Control Permit package. Once the 401 Certification has been issued, Baker Engineering will fax a copy to NC Division of Land Quality. PROJECT DESCRIPTION Durham County Soil and Water Conservation District proposes to restore and enhance approximately 4,062 linear feet (LF) of stream along Lick Creek. The site is located in Durham County, NC, east of the city of Durham (Figure 1). This stream has been channelized and straightened to promote agricultural drainage of the site. The channel is experiencing deep incision which relates to the excessive bank erosion and lack of root density to stabilize the channel. The goal of the restoration is to stabilize the stream banks while keeping an appropriate dimension, pattern, and profile and providing habitat. Total disturbed area for stream restoration is approximately 12.8 acres. SITE CONDITIONS The site has a recent history of agricultural and cattle production. Ditches on the site were used to promote drainage when the land was under agricultural production. Local relief within the project site is approximately twenty feet, with the highest location being the floodplain at the beginning of Reach I and the lowest location being the downstream end of Reach 2. Surrounding properties are characterized primarily by agriculture and low density development. EROSION AND SEDIMENTATION CONTROL MEASURES Erosion control methods to be used in the project include construction entrances/exits, silt fences, temporary rock dams/ silt checks, temporary stream and ditch crossings, mulch, temporary seeding, permanent seeding, and erosion control matting. All sediment and erosion control measures are to be built according to the plans and specifications. Grading activities will be performed on areas away from flowing ditches. No grading will be allowed within 10 feet of ditches until water flowing in the ditches has been diverted into a new stable channel. Cut material will be stockpiled as shown on the plans. Silt fences will be used to prevent erosion of the stockpiles toward the open ditches on site. A 10 foot wide plug of undisturbed soil will be left between the old and new channel until the new channel is prepared to receive water from the old channel. Once water has been turned into the sections of new stable channel, stockpiled material will be used to fill the old, abandoned channel as shown on the plans, and the site will be graded to final design elevations. Temporary sediment traps will be installed on the downstream end of ditches to be filled in. Silt fences will be used to prevent erosion of disturbed ground toward any flowing streams on site. DESIGN STANDARDS Standard erosion control practices, methods, and procedures described in these plans and specifications are based on those presented in the North Carolina Erosion and Sediment Control Planning and Design Manual. MAINTENANCE PLAN Qualified personnel on a daily basis will evaluate all temporary erosion and sediment control practices for stability and operation. Weekly inspections will be performed and logs kept. A rain gage will also be kept on site and rainfall amounts recorded. Any repairs needed, will be performed immediately to maintain all practices as designed. The selected Contractor will be responsible for the maintenance of temporary on-site erosion control measures. The Contractor will be responsible for implementing and following the approved Sediment and Erosion Control Plan. Maintenance requirements for permanent measures will be the responsibility of the restoration site sponsor - Durham County Soil and Water Conservation District: Mr. Eddie Culberson Durham County Soil and Water Conservation District 721 Foster Street Durham, NC 27701 (919) 560-0558 CULVERT DESIGN CALCULATIONS No culverts will be used within the Lick Creek Stream Restoration Project. TECHNICAL SPECIFICATIONS A. GENERAL SPECIFICATIONS 1. Construction is scheduled for Fall/Winter 2009. 4 B. CONSTRUCTION SURVEY The Contractor is not required to provide construction surveying or layout services and is required to keep a laser level onsite and a person trained in its use for checking and maintaining grades. The design firm will provide construction surveying or layout services. C. MOBILIZATION AND DEMOBILIZATION SCOPE The work shall consist of the mobilization and demobilization of the Contractor's forces and equipment necessary for performing the work required under the contract. This work shall not include mobilization and demobilization for specific items of work for which payment is provided elsewhere in the contract. Mobilization will not be considered as work in fulfilling requirement for commencement of work. EQUIPMENT AND MATERIALS Mobilization shall include all activities and costs for transportation of personnel, equipment, and operating supplies to the site; establishment of offices, and other necessary facilities for the Contractor's operations at the site; premiums paid for performance and payment bonds, including coinsurance and reinsurance agreements as applicable; and other items as specified in this specification. Demobilization shall include all activities and costs for transportation of personnel, equipment, and supplies not included in the contract from the site; including the disassembly, removal and site clean up and repair of any facilities assembled on the site for this contract. This work includes mobilization and demobilization required by the contract at the time of the award. If additional mobilization and demobilization activities and costs are required during the performance of the contract as a result of the changed, deleted, or added items of work for which the Contractor is entitled to an adjustment in contract price, compensation for such costs will be included in the price adjustment for the item or items of work changed or added. METHODS Items of work to be performed in conformance with these specification and construction details therefore are: (1) This item shall consist of all work necessary to mobilize and demobilize construction equipment as described above. (2) The Contractor is required to properly and safely identify and secure the construction accesses, staging areas, and material handling areas. Prior to construction activities, the Contractor shall identify and mark boundaries of the staging area as directed by the Engineer. Acceptable materials for identifying the construction areas include highly visible tape, road signs, barricades, cables, and safety fencing. (3) Stockpile all construction materials, including stone, riprap, gravel, erosion control devices, etc. in the staging area. Any soil materials that are stockpiled shall have a silt fence properly installed to ensure materials are contained. Silt fence installation specifications are provided in the POLLUTION CONTROL specifications and will not be bid under this section. (4) To limit the disturbance of soils on site, the Contractor shall restrict the movement of all construction equipment within sensitive areas. Prior to construction activities, the Contractor shall identify the boundaries of all sensitive areas by using a highly visible tape or orange boundary fencing, and will stake the limits of where construction equipment is permitted to travel, as directed by the Engineer/ Project Manager. (5) The Contractor shall provide watertight tanks or barrels sealed with plastic sheets to be used to dispose of chemical pollutants, such as drained lubricating or transmission oils, greases, soaps, concrete mixer wash water, asphalt, etc., produced as a by-product of the construction work. At the completion of construction, facilities shall be disposed of without causing pollution. (6) Chemical toilets shall be placed 100 feet from streams and in the staging area away from heavy equipment. At the completion of construction work, facilities shall be disposed of without causing pollution. (7) The Contractor will identify all underground and aboveground utilities and is responsible for ensuring that these utilities are not damaged during construction. The Contractor will promptly notify the project engineer if there are conflicts between the utilities and the design. (8) The Contractor will install construction accesses per specification 6.06 in the North Carolina Erosion and Sediment Control Planning and Design Manual (2006) and shown on the drawing. (9) The Contractor shall properly remove and discard debris and trash. D. POLLUTION CONTROL STRUCTURES (TEMPORARY SILT FENCE) SCOPE The work shall consist of installing structural measures or performing work to control erosion and minimize the production of sediment and other pollutants to water during construction operations. 6 This item shall consist of all work necessary to control soil erosion and minimize the introduction of sediment and other pollutants to waterways. Pollution control for any disposal area is the responsibility of the Contractor unless the area is within the work limits of this project. Pursuant to NC Department of Environment and Natural Resources, Division of Water Quality regulations, the Contractor shall follow the approved Sediment and Erosion Control Plan for the site, as provided in the plans and these specifications. A copy of General Permit No. NCGO 10000 (General Permit To Discharge Stormwater Under the National Pollutant Discharge Elimination System) will be supplied to the Contractor prior to commencement of site work. The Contractor is required to follow the requirements of permit NCGO10000, which includes the following conditions: Weekly inspection of sediment and erosion control devices and documentation of their condition. Sediment and erosion control devices shall also be inspected within 24 hours following any rainfall event greater than 0.5 inches of rain per 24 hour period. Any devices which are not functioning adequately shall be immediately reported to the Project Engineer/Manager and repaired. A rainfall gage shall be maintained on the site and a record of rainfall amounts and dates shall be kept. A copy of the approved Sediment and Erosion Control Plan for the site, General Permit No. NCGO 10000, log of control device inspections, and log of rainfall events and amounts shall be kept in an accessible location on-site at all times during the construction project. The Contractor is responsible for following the approved Sediment and Erosion Control Plan for the site and for following the requirements of General Permit No. NCG010000, and assumes liability for any fines or regulatory actions that may be imposed by failure to do so. EQUIPMENT AND MATERIALS Refer to the North Carolina Sediment and Erosion Control Manual (2006). METHODS The measures and works shall include, but are not limited to, the following: Diversions and Temporary Sediment Traps - Diversions are used to divert water away from work areas and to collect runoff from work areas for treatment by temporary sediment traps. Temporary sediment traps will be installed at the end of the each new section of stream channel as the section is being constructed. These works are temporary and shall be removed and the area restored to its original state when they are no longer needed or permanent measures are installed. Refer to practice 6.20 "Diversion" and 6.60 "Temporary Sediment Trap" in the North Carolina Sediment and Erosion Control Manual (2006). 7 Sediment Fence (Silt Fence) - Geotextile sediment fences shall be used to trap sediment from areas of limited runoff. Sediment filters shall be properly anchored to prevent erosion under them. These works are temporary and shall be removed and the area restored to its original state when they are no longer needed or permanent measures are installed. Locations for sediment filters are shown on the plans. Refer to sediment fence specifications (6.62) in the North Carolina Sediment and Erosion Control Manual (2006). Other - Additional work as required by the Federal, State, or Local Government. All pollution control measures and works shall be adequately maintained in a functional condition as long as needed during the construction operation. All temporary measures shall be removed and the site restored to as nearly original conditions as practical. E. PUMP-AROUND OPERATIONS SCOPE No pump-around operations will be used during the project. The project has a drainage area of 6 square miles and is be difficult to pump-around. The contractor will work from the streambanks as much as possible and only enter the channel when necessary, in order to minimize impact. F. SPECIAL STILLING BASINS No special stilling basins will be used within the project. G. IMPERVIOUS DIKE No impervious dike will be used within the project. H. POLLUTION CONTROL SEEDING AND MULCHING SCOPE The work shall consist of installing measures or performing work to control erosion and minimize the production of sediment and other pollutants to water and air during construction operations. Temporary seeding will be used on all areas susceptible to erosion, including, but not limited to ditch banks, access areas, steeper slopes, and areas where excess soil will be spread over upslope fields. Seeding will take place immediately after construction activities are completed in the disturbed areas. The work shall consist of preparing the area, furnishing and placing seed and mulch, and anchoring mulch in the designated areas as specified. EOUIPMENT AND MATERIALS Temporary Seeding For temporary seeding, apply the following vegetation at the listed rates and times. A combination of the two seed types shall be used during the boundary months of March, April, August and September to ensure survival. Temporary Seeding (September to March): Rye grain 130 lbs per acre Temporary Seeding (April to August): Browntop Millet 40 lbs per acre Mulching Mulching shall be used to provide temporary protection of soil surfaces from erosion. Mulching should be performed within 48 hours of seeding. Grain straw mulch should be applied on seeded areas at a rate of 130 bales per acre. Apply mulch uniformly. METHODS On sites where equipment can be operated safely, the seedbed shall be adequately loosened. Disking may be needed in areas where soil is compacted. Steep banks may require roughening, either by hand scarifying or by equipment, depending on site conditions. The Engineer will determine condition needs onsite. If seeding is done immediately following construction, seedbed preparation may not be required except on compacted, polished or freshly cut areas. Mulching is used to provide temporary protection of soil surfaces from erosion. Mulching should be performed within 48 hours of temporary seeding. Grain straw mulch should be applied on temporary seeded areas at a rate of 3 bales per 1,000 ft (130 bales per acre). Mulch shall NOT be applied on streambanks when coir fiber matting matching C7 specifications is used. Apply mulch uniformly. 1. PERMANENT SEED SCOPE The work shall consist of applying permanent seeding on the site for the purposes of establishing stream buffer, wetland vegetation and controlling erosion. Permanent seeding will be placed on all disturbed areas targeted for stream buffer, wetland restoration, or where grading and earthmoving activities have left exposed soil when construction in the area is completed. Seeding will take place immediately after construction activities are completed. The work shall consist of furnishing and placing seed in designated areas. 9 EQUIPMENT AND MATERIALS Apply the following vegetation at the listed rates. Species may be substituted or removed from the specified mixtures upon approval of the Project Manager. Seed Mixture: Percent Seeding Common Name Scientific Name of Density Wetness Mixture lbs/acre Tolerance Redto A rostis alba 10% 1.5 FACW Virginia Wild rye El mus vir inicus 15% 2.25 FAC Switch grass Panicum vir atum 15% 2.25 FAC+ Eastern Gamma Tripsacum Grass dac loides 5% 0.75 FAC+ Pennsylvania Polygonum Smartweed enns lvanicum 5% 0.75 FACW Schizachyrium Little Blue Stem sco arium 5% 0.75 FACU Soft Rush Juncus a ffusus 5% 0.75 FACW+ Bidens frondosa (or Be gars Tick aristosa 5% 0.75 FACW Lance-Leaved Coreopsis Tick Seed lanceolata 10% 1.5 FAC Tioga Deer Dichanthelium Tongue clandestinum 15% 2.25 FAC W Andropogon Big Blue Stem erardii 5% 0.75 FAC Indian Grass Sor astrum nutans 5% 0.75 FACU METHODS It is anticipated that the soil will be sufficiently loosened after construction to allow for immediate planting of seed. Disking may be needed in areas where soil is compacted. Disking will be paid for under item J. Excavation, Fill, and Grading. The Engineer will determine condition needs onsite. Due to the small size of some permanent seed species and the low application rates, it may be necessary to mix the permanent seed with temporary seed or sand to distribute the seed at the stated application rate. If permanent seed is mixed with temporary seed, the temporary seed shall not be applied at a greater application rate than stated under the "POLLUTION CONTROL SEEDING AND MULCHING" specification without the permission of the Engineer. 10 J. EXCAVATION, FILL, AND GRADING SCOPE The Contractor shall excavate and grade the Channel and floodplain areas according to the design plans and as directed by the Engineer. Cross sections and contours are provided in the drawings. The excavated materials will be placed in the stockpile areas noted on the plans along the river. Some of the excavated material shall be used to fill and reshape banks as the design notes or direction of the engineer. The fill should be compacted with heavy equipment and does not have to meet specific compaction standards. In areas where excavation depths will exceed one (1) foot, approximately 8 inches of topsoil from the area will be stockpiled, and design grades should be cut 8 inches deeper than shown on the plans. Topsoil will then be placed back over these areas to a depth of approximately 8 inches to achieve design grades. METHODS GENERAL GRADING The Contractor shall ensure that final grades on all floodplain and open field areas are within 0.2 foot of the design contours shown on the plans. Bed elevations within the new stream channel and elevations of instream structures shall be within 0.03 foot of the design grades, unless otherwise directed by the Engineer. SITE ROUGHING Soil in the area of tree plantings shall be loosened to a depth of at least 8 to 10 inches. This is necessary only on compacted soil. CLEARING Clearing will be necessary in some areas of the site. These areas are shown on the plans. Prior to the clearing of these areas, vegetation appropriate for transplanting shall be removed and either placed along the newly constructed channel, or stockpiled in an area where the roots will remain wet until the transplants may be placed along the newly constructed channel. These areas for stockpiling transplant material will be determined by the Project Engineer. Any cleared trees, snag, roots, stumps, etc. not used to stabilize the new stream channel shall be removed from the site. GRUBBING Grubbing will be necessary in some areas of the site. Grubbing shall include satisfactory removal and disposal of all trees, brush, stumps and other objectionable material. These areas are shown on the plans. Prior to the grubbing of these areas, vegetation appropriate for transplanting shall be removed and either placed along the newly constructed channel, or stockpiled in an area where the roots will remain wet until the transplants may be placed along the newly constructed channel. These areas for stockpiling transplant material will be determined by the Project Engineer. Any cleared trees, snag, roots, stumps, etc. not used to stabilize the new stream channel shall be removed from the site. DITCH PL UGS Ditch plug areas will be constructed according to the detail located in the plans. Fill material used for ditch plugs shall be free of debris, rocks, trash, etc. and shall consist of compactable soil material. Fill shall be placed in the ditch plugs areas and compacted in lifts of no more than 12 inches per lift. The completed ditch plugs shall be free of voids and shall be impermeable to water flow through the block. FILLED CHANNEL The old channel will be filled with material from onsite. Fill material shall be placed in the channel and compacted with construction equipment. Areas of channel which have been filled shall have additional material bermed over the top of the fill to a depth of approximately 6 inches to offset future settling. If debris, tree limbs, roots, etc. are placed in the channel sections for burial, this material shall be placed at least 100 feet from any junction, channel block, or channel which will receive flowing water after construction. Under no circumstances will be Contractor place trash into filled channel sections. K. STONE SCOPE The work covered by this section consists of furnishing, stockpiling, placing and maintaining an approved stone to be utilized to construct constructed riffle structures, silt checks, and for use in other locations as directed by the Engineer. EQUIPMENT AND MATERIALS Stone for "Stone, Gravel" shall consist of uncrushed gravel. It shall be composed of clean, tough, durable fragments free from fines, organic matter and deleterious substances. Stone for "Gravel (57)", "Class A", "Class B", "Class II," and "Boulders" shall consist of blasted granite quarry stone stockpiled onsite and approved by the Engineer. The stone 12 shall be sound, tough, dense, resistant to the action of air and water, and suitable in all other respects for the purpose intended. All stone shall meet the approval of the Engineer. While no specific gradation is required, the various sizes of the stone shall be equally distributed within the required size range. The size of an individual stone particle will be determined by measuring its long dimension. REQUIRED STONE SIZES-INCHES CLASS MINIMUM AVERAGE MAXIMUM GRAVEL 57 0.25 0.5 1.5 CLASS A 2 4 6 CLASS B 5 8 12 CLASS II 6 10 14 BOULDERS 24 30 36 No more than 5.0% of the material furnished can be less than the minimum size specified. No more than 10.0% of the material can exceed the maximum size specified. METHODS The Contractor shall place stone in locations shown on the plans or as directed by the Engineer, to the thickness, widths, and lengths as shown on the plans and described in the specifications, or directed by the Engineer. All stone shall be placed to form an erosion control device or a constructed riffle stream structure in accordance with the plans, neatly and uniformly, and shall meet the approval of the Engineer. L. INSTREAM STRUCTURES SCOPE The work covered by this section consists of the construction of instream structures to stabilize streambanks and improve aquatic habitats. Instream structures include grade control rock and log j hooks, step pools, constructed riffles, and rock dams. The quantity of instream structures to be constructed will be affected by actual conditions that occur during the construction of the project. The type and quantity of structures may be increased or decreased at the direction of the Engineer. Such variations in quantity will not be considered as alterations in the details of construction or a change in the character of the work. MATERIALS Logs and root wads will be produced onsite, if available. Onsite rootwads will be selected by the Engineer. The tree shall have been alive when recently removed from the ground. Logs shall be cut approximately 15 - 20 feet in length. Root wads shall consist of the root mass and at least 8 feet of trunk. Tree basal diameter shall be a minimum of 10 inches. Root mass shall be dense and at least 2' in diameter. 13 Filter fabric for sealing structures shall be Type 2 non-woven, at least 75 mils thick with a minimum weight of 6 oz/sq yd. Filter fabric will be nailed to the log to create an adequate seal behind the log. All stone materials shall meet the requirements given in the STONE section. METHODS Items of work to be performed in conformance with this specification and the construction details therefore include: a. Excavation of Instream Structures (Rock Vanes, Log Vanes, J-hooks, and Root Wads). (1) This item shall consist of the excavation, placement of rock and wood materials, and backfill associated with the installation of bid item instream structures. (2) The Engineer may adjust the excavation limits to improve the channel foundation conditions during construction. (3) Excavated material shall be placed on the upstream side of the structures or transported to a stockpile location as directed by the Engineer. (4) Unless otherwise approved by the Engineer, excavation to prepare subgrade for the installation of instream structures shall be consecutive and continuous. Once the excavation of a structure has begun, the structure will be completed by the end of the workday. All equipment shall be removed from the stream at the end of each workday. (5) Any accumulation of sediment in the channel shall be cleaned as needed during construction and at the end of construction. No separate payment will be made for this clean-up work. Any disturbed soil shall be seeded utilizing temporary and permanent seeding methods. M. FILTER FABRIC SCOPE Filter fabric needed for the instream structures and silt checks. METHODS Filter fabric for sealing structures shall be Type 2 non-woven, at least 75 millimeters thick with a minimum weight of 6 oz/sq yd. 14 O. COIR FIBER MATTING SCOPE Furnish materials, install and maintain Coir Fiber Matting in locations shown on the plans or in locations as directed by the Engineer. Work includes providing all materials, excavating and backfilling, and placing and securing Coir Fiber Matting. Coir Fiber Matting will only be used in locations specified in the plans or by the Project Engineer/Manager. Locations will primarily be on new streambanks. Other problem areas may also require the placement of coir fiber matting. EQUIPMENT AND MATERIALS Ecostakes: Provide ecostakes made from wood not less than 12 in. (300 mm) in length with a notch cut 1 in. (25 mm) from the top. These stakes shall be used to stake the matting along the slopes. Wooden 3 ft. stakes spaced approximately 4 ft. apart shall be used to secure the matting at the toe of slope. The toe stakes shall have a minimum f- inch by 1-inch cross-section and shall be designed so that the matting can not slide past the exposed end of the stake. Matting: Provide coir fiber matting to meet the specifications of the C 7 or comparable matting. Netting material MUST be biodegradable. The erosion control blanket/channel lining shall be a machine-produced mat of 100% coconut fiber with the following properties: Matrix 100% Coconut Fiber Weight 20 oz/SY (678 gm/m2) Tensile Strength 1348 x 626 lb/ft minimum (1650.5 x 766.5 kg/m) Elongation 34% x 38% Open Area (measured) 50% Thickness 0.30 in minimum (7.6 mm) Flexibility (mg -cm) 65030 x 29590 Recommended Flow 11 feet/second (3.35 m/s) Size 6.6 x 164 ft (120 SY) or (100 SM) "C" Factor 0.002 Property Thickness Resiliency Mass per Unit Area Water Absorption Swell Stiffness/Flexibility Light Penetration Smolder Resistance Test Method ASTM D5199/ECTC ECTC Guidelines ASTM D5261 ASTM DI 117/ECTC ECTC Guidelines ASTM D1388/ECTC ECTC Guidelines ECTC Guidelines Typical 0.26 in (6.60 mm) 85% 10.72 oz/yd2 (360 g/m2) 155% 40% 0.11 oz-in (1,218 mg-cm) 16.40% Yes" 15 MD Tensile Strength ASTM D5035 342.00 lbs/ft (4.98 kN/m) MD Elongation ASTM D5035 7.60% TD Tensile Strength ASTM D5035 211.00 lbs/ft (3.08 kN/m) TD Elongation ASTM D5035 11.10% METHODS Provide a smooth soil surface free from stones, clods, or debris that will prevent the contact of the matting with the soil. Place the matting immediately upon final grading. Take care to preserve the required line, grade, and cross section of the area covered. Apply fertilizer, seed, and lime prior to installing blankets. Unroll the matting and apply without stretching such that it will lie smoothly but loosely on the soil surface. Bury the top slope end of each piece of matting in a narrow trench at least 6 in. (150 mm) deep and tamp firmly. Where one roll of matting ends and a second roll begins, overlap the end of the upper roll over the buried end of the second roll so there is a 6 in. (150 mm) overlap. Construct check trenches at least 12 in. (0.3 m) deep every 50 ft. (16 m) longitudinally along the edges of the matting or as directed by the Engineer/ Project Manager. Fold over and bury matting to the full depth of the trench, close and tamp firmly. Overlap matting at least 6 in. (150 mm) where 2 or more widths of matting are installed side by side. Place stakes across the matting at ends, junctions, and check trenches approximately 1 ft. (90.3 m) apart with notch facing upslope. Place stakes along the outer edges and down the center of each strip of matting 3 feet (1 meter) apart. Place stakes along all lapped edges 1 ft. (0.3 m) apart. Refer to details in the plan sheets. The Engineer/ Project Manager may require adjustments in the trenching or staking requirements to fit individual site conditions. P. TRANSPLANTS SCOPE The work shall consist of the removal, transport, and placement of available on-site vegetative material for the purpose of streambank stabilization and enhancement of stream habitat. EQUIPMENT AND MATERIALS The Contractor shall provide a rubber tired or track loader for the excavation, transport and installation of transplanted vegetation. The Contractor must have approval from the Engineer before using any other type of equipment for installing transplants. 16 METHODS Shrub and trees less than 3 inches in diameter shall be salvaged onsite in areas designated for construction, access areas, and other sites that will necessarily be disturbed. Vegetation to be transplanted will be identified by the Engineer personnel. Transplanted vegetation shall carefully be excavated with rootballs and surrounding soil remaining intact. Care shall be given not to rip limbs or bark from the shrub and tree transplants. Vegetation should be transplanted immediately, if possible. Otherwise, transplanted vegetation shall be carefully transported to designated stockpile areas and heeled-in in constantly moist soil or sawdust in an acceptable manner appropriate to weather or seasonal conditions. The solidity of the plants shall be carefully preserved. Individual transplants shall range in size from 0.5 to 2 square yards in size. Installation of shrub and tree transplants shall be located in designated areas along the top of the stream bank or in floodplain restoration areas as directed by Engineer. Soil in the area of vegetation transplants shall be loosened to a depth of at least 1 foot. This is only necessary on compacted soil. Transplants shall be replanted to the same depth as they were originally growing. The planting trench or hole shall be deep and wide enough to permit the roots to spread out and down without J-rooting. The plant stem shall remain upright. Soil shall be replaced around the transplanted vegetation and tamped around the shrub or tree firmly to eliminate air pockets. Spacing and location of vegetation transplants will be determined onsite by the Engineer. Q. LIVE STAKING SCOPE The work shall consist of the planting of live stakes on ditch banks to be protected from erosion. The Contractor will be responsible for identifying a source for live stakes near the project site, collecting and delivering the live stakes to the project site, and installation of the live stakes. Staking must take place during the dormant season (December - February). EQUIPMENT AND MATERIALS Live stakes may be of the following species: Common Name Scientific Name Percentage of Total Wetness Tolerance Buttonbush Ce halanthus occidentalis 25% OBL Silk Dogwood Cornus amonum 25% FACW+ Silk Willow Salix sericea 25% OBL Black Willow Salix ni ra 25% OBL 17 METHODS Live stake materials should be dormant and gathered locally or purchased from a reputable commercial supplier. Stakes should be''/z to 2 inches in diameter, 2 to 3 feet in length, and living based on the presence of young buds and green bark. Stakes shall be angled on the bottom and cut flush on the top with buds oriented upwards. All side branches shall be cleanly trimmed so the cutting is one single stem. Stakes should be kept cool and moist to improve survival and to maintain dormancy. Planting shall take place during the months of December - February. Stakes should be installed 2 to 3 feet apart along the stream banks on the outside of meander bends and 6 to 8 feet apart along the stream banks on the inside of meander bends and through tangent sections. Live stakes shall be installed along streambanks above the base flow water surface elevation. Site variations may require slightly different spacing. Stakes shall be driven into the ground using a rubber hammer or by creating a hole and slipping the stake into it. The stakes should be tamped in at a right angle to the slope with 4/5 of the stake installed below the ground surface. At least two buds (lateral and/or terminal) shall remain above the ground surface. The soils shall be firmly packed around the hole after installations. Split stakes shall not be installed. Stakes that split during installations shall be replaced. R. BARE-ROOT VEGETATION SCOPE The work shall consist of the planting of bare-root tree species. The Contractor will be responsible for the purchase of the trees. Bare-root tree species will be planted in areas as shown in the vegetation planting plan. Planting must take place during the dormant season (November 22°d - March 4'). EQUIPMENT AND MATERIALS Choose 8 of the I I listed species based on the availability at the time the vegetation order is placed. Maintain the same relative percentage. Containerized and bare root vegetation shall be installed randomly 10 feet apart from the top of the streambank out to the edge of the revegetation limits. Common Name Scientific Name Percentage Sycamore Platanus occidentalis 15 Willow Oak uercus hellos 10 River Birch Betula ni a 15 Green Ash Fraxinus enns lvanica 15 Water Oak uercus ni a 10 White Basswood Tilia hetero lla 5 Persimmon Dios ros vir iniana 5 Pawpaw Asimina triloba 5 18 Witch-Hazel Hamamelis vir iniana 5 Possumhaw viburnum nudum 5 S icebush Lindera benzoin 10 METHODS Planting shall take place during the months of November - March. Immediately following delivery to the project site, all plants with bare-roots, if not promptly planted, shall be heeled-in in constantly moist soil or sawdust in an acceptable manner corresponding to generally accepted horticultural practices. While plants with bare-roots are being transported to and from heeling-in beds, or are being distributed in planting beds, or are awaiting planting after distribution, the contractor shall protect the plants from drying out by means of wet canvas, burlap, or straw, or by other means acceptable to Engineer and appropriate to weather conditions and the length of time the roots will remain out of the ground. Soil in the area of tree plantings shall be loosened to a depth of at least 5 inches. This is necessary only on compacted soil. Bare-root vegetation may be planted in a hole made by a mattock, dibble, planting bar, or other means approved by Engineer. Rootstock shall be planted in a vertical position with the root collar approximately ''/z inch below the soil surface. The planting trench or hole shall be deep and wide enough to permit the roots to spread out and down without J-rooting. The plant stem shall remain upright. Soil shall be replaced around the transplanted vegetation and tamped around the shrub or tree firmly to eliminate air pockets. S. SAFTEY FENCE SCOPE The work of "Safety Fence" shall consist of furnishing, installing and maintaining polyethylene or polypropylene fence at locations shown on the plans or as directed by the Engineer/ Project Manager in accordance with special provisions included herein. Sections of safety fence shall be installed within one working day following mobilization operations. Unless prior approval is received from the Engineer/ Project Manager, failure to install the fence as specified herein will result in stoppage of all operations until the necessary safety fence is installed. MATERIALS Polyethylene or polypropylene fence shall be preconstructed safety fence approved by the Engineer/ Project Manager. 19 Steel posts are required and shall be a length of at least 5 feet; approximately 13/8" wide measured parallel to the fence, and have a minimum weight of 1.25 lb/ft of length. The steel post shall be equipped with an anchor plate having a minimum area of 14 square inches. CLEARING AND GRUBBING No additional clearing and grubbing is anticipated for the installation of this fence; however, if any clearing and grubbing is required, it will be the minimum required for installation of the safety fence. Such clearing shall include satisfactory removal and disposal of all trees, brush, stumps and other objectionable material. The fence shall be erect to conform to the general contour of the ground. When determined necessary by the Engineer/ Project Manager, minor grading along the fence line shall be done to meet this requirement provided no obstructions to proper drainage are created. INSTALLATION Posts shall be set and maintained in a vertical position and may be hand set or set with a post driver. If hand set, all backfill material shall be thoroughly tamped. The fence fabric shall be attached to the steel posts with wire or other acceptable means. The Contractor shall be required to maintain the safety fence in a satisfactory condition for the duration of the project as determined by the Engineer/ Project Manager. T. CONSTRUCSTION SEQUENCE A Baker Engineering Project Manager will provide construction observation during the construction phase of this project. The following construction sequence shall be used during implementation of the plan. 1. Prior to beginning any land disturbing activities, notification and approval must be granted from NCDENR Division of Land Resources - Land Quality Section, US Army Corp of Engineers, and NC Division of Water Quality. 2. The Contractor shall contact North Carolina "One Call" Center (1.800.632.4949) and Land Quality (919.791.4200) before any excavation. 3. The Contractor will mobilize equipment and materials to the site by installing and using the construction entrance (that is shown on the plans) along Olive Branch Road. 4. The Contractor will utilize the haul roads and stream crossing as shown on the plans. Construction traffic shall be restricted to the area denoted as "Limits of Disturbance" on the construction plans. 5. The Contractor shall install temporary silt fence around the staging areas and safety fence as shown on plans. 20 6. The Contractor shall install all temporary stream crossings as shown on plans in accordance with the NC Erosion and Sediment Control Planning and Design Manual. Ditches and stream reaches on site will be left open during the initial stages of construction to allow for drainage and to keep site accessible. 7. Contractor shall begin construction on each stream reach and complete that stream reach before moving to the next reach. A temporary rock dam shall be installed at the upstream and downstream end of each reach. 8. Contractor will perform all work in the wet along both reaches. The Contractor shall only work in areas that can be seeded, mulched, and matted within the same day. 9. Immediately upon completion of bank grading and in-stream structure installation, the slope will be reseeded, mulched, and matted with erosion control fabric. 10. Upon completion of each reach, all disturbed floodplain areas including staging areas and haul roads, shall be seeded and covered with mulch. Trees shall be planted in accordance with the planting plan. Permanent seeding mixtures shall be applied as shown on the vegetation plan. Temporary seeding shall be applied in all areas susceptible to erosion (i.e. disturbed ditch banks, steep slopes, and spoil areas) such that ground cover is established within 21 working days following completion of any phase of grading. Permanent ground cover shall be established for all disturbed areas within 15 working days or 90 calendar days (whichever is shorter) following completion of construction. 11. All areas should be seeded and mulched before leaving the project reach. Remove temporary stream crossings and any in-stream temporary rock dams. All waste material must be removed from the project reach. 12. The Contractor shall ensure that the reach is free of trash and leftover materials prior to mobilization of equipment from the reach to the next reach. 13. The Contractor shall start the stream work at the bottom of the Reach 2 and work upstream to the top of the reach. Before moving onto Reach 1, all work shall be completed along Reach 2 (i.e. all temporary rock dams and haul roads must be removed and all disturbed areas seeded and mulched). 14. The Contractor shall start the stream work along Reach 1 at the bottom of the Reach 1, in order to work their way out of the project and to stabilize disturbed areas as quick as possible so that vegetation can get established. 15. Once the project has been completed, the contractor shall ensure that the project is free of trash and leftover materials prior to demobilization of equipment from the site. 21 N NC 96 "fp A? 1 (? Sri %_Ick Creek . 01 19 k? Figure 1 Project Vicinity Map lick Creek Site Durham Cocnty 70 O 22 74 r ? , *MW Legend -- Lick Creek project reach Figure 2. Project Watershed Map Lick Creek watershed at Olive Branch Rd Lick Creek Site Lick Creek watershed at downstream extent J 5 t PATS 23 ae. Prc CIO Nil, I I,l 24 C (reeK PrT;,-e ?, NORTH CAROLINA DEPARTMENT OF ENVIRONMENT & NATURAL RESOURCES LAND QUALITY SECTION EROSION and SEDIMENTATION CONTROL PLAN PRELIMINARY REVIEW CHECKLIST The following items shall be incorporated with respect to specific site conditions, in an erosion & sediment control plan: LOCATION INFORMATION 55 Jvcr?v?.ry,2 STORMWATER CALCULATIONS V Project location (oadltteets,rlandmarks) _i,.-" North arrow and scale p/?,? S¢s Pre-construction runoff calculations for each outlet from the site (at peak discharge points) GENERAL SITE FEATURES (Plan elements) ? 0ls?W•F5 Legend: North arrow, scale, etc: Property lines P(?.. ?; ??'! 5 V-7r Existing contours (topographic lines) S r/ Proposed contours fe Y-? Limits of disturbed area (provide acreage total, delineate limits, and label) J'L /, Y-5- Planned and existing building locations and elevations S?rlS !ee¢f V11, Planned & existing road locations & elevations Lot and/or building numbers ? Geologic features: rock outcrops, seeps, springs, wetland and their limits, streams, lakes, ponds, dams, etc. 5r:-+,c 4 t? Easements and drainage ways & ,fee ?S Profiles of streets, utilities, ditch lines, etc.0o-;4 Stockpiled topsoil or subsoil locations fe- lf the same person conducts the land-disturbing activity & any related borrow or waste activity, the related borrow or waste activity shall constitute part of the land-disturbing activity unless the borrow or waste activity is regulated under the Mining Act of 1971 or is a landfill regulated by t/ Design calculations for peak discharges of runoff (including the construction phase & the final runoff coefficients of the site) k.c,rlof?-* Design calcs of culverts and storm sewers _tz- Discharge and velocity calculations for open??p r5 ?. channel and ditch flows (easement & right-of-ways) Design calcs of cross sections and method of stabilization of existing and planned channels (include temporary linings) 401 Design calcs and construction details of energy ?,1G dissipators below culvert and storm sewer ? outlets (diameters & apron dimensions) t. V Design calcs and dimension of sediment basins ^Zk Surface area and settling efficiency information for proposed sediment traps and/or basins r/s VEGETATIVE STABILIZATION Area & acreage to be vegetatively stabilized Sf? ?a •,(! 1?- Method of soil preparation ,voff- V4 T Seed type & rates (temporary & permanent JVW/r? tvYl /V/H- Fertilizer type and rates %/ Mulch type and rates the Division of Waste Management. If the land-disturbing activity and any related borrow or waste activity are not NOTE: Plan should include provisions for groundcover conducted by the same person, they shall be considered on exposed slopes within 21 calendar days following separate land disturbing activities and must be permitted completion of any phase of grading; permanent groundcover either thru the Sedimentation Pollution Control Act as a for all disturbed areas within 15 working days or 90 calendar days / one-use borrow site or through the Mining Act. (whichever is shorter) following completion of V Required Army Corps 404 permit and Water Quality 401 construction or development. certification (e.g. stream disturbances over 150 linear feet) '- i I,-- 010 fwz w. FINANCIAL RESPONSIBILITYIOWNERSHIP FORM EROSION CONTROL MEASURES (on plan'() D Legend f1wh "1,'y4i FC-!, EC t/-S Location of temporary measures C-L y'S Location of permanent measures C,/,,. 5t ?S Construction drawings and details for temporary and permanent measures R.'o fbi Maintenance requirements of measures& /, -tT Contact person responsible for maintenance ?,ive?rctl r SITE DRAINAGE FEATURES ee Existing and planned drainage patterns (include / off-site areas that drain through project) (/ Method of determination of and calculations for Acreage of land being disturbedC4o/f t e Z Size and location of culverts and sewers .14 V Soil information: type, special characteristics -/4- Soil information below culvert storm outlets _ Name and classification of receiving water course or name of municipal operator (only where stormwater discharges are to occur) r-y /IS, ?L AJ , e' i C? Cittok- 14A fe- Completed, signed & notarized FR/O Form/ 4 Accurate application fee ($65.00 per acre rounded up the next acre with no ceiling amount) Nr'? Certificate of assumed name, if the owner is a partnership Name of Registered Agent (if applicable) -&4r& Copy of the most current Deed for the site NOTE: For the Express Permitting Option, inquire at the local Regional Office for availability. NARRATIVE AND CONSTRUCTION SEQUENCE Narrative describing the nature & purpose of the construction activity ti/yr r?? `? t. V Construction sequence related to erosion and *-6(3 sediment control (including installation of critical measures prior to the initiation of the land- disturbing activity & removal of measures after areas they serve are permanently stabilized) Bid specifications related only to erosion control Al. fve- Micinael Baker Engineering, Inc. 400 Executive Boulevard P.O. Box 462 Elmsford, NY 10523 North Carolina DENR Division of Land Resources 1612 Mail Service Center Raleigh NC 27699-1612 881994 PAYMENT SUMMARY VENDOR NO: 9635 PHONE NUMBER: VOUCHER NO: 0003 212 644 VOUCHER DATE: 05/13/2009 REF. DOC. REFERENCE NUMBER REF. DATE DOCUMENT DISCOUNTIADJ NET AMOUNT AMOUNT AMOUNT INVOICE 12MAY09 05/12/2009 845.00 845.00 TOTALS 845.00 wenen naq Kwhael Baker Engineering, Inc. 400 Executive Boulevard 62-115/311 P.O. Box 462 Elmsford, NY 10523 ??#3A'tE CF?6CI??IEH 05/13/2009 0003212644 1' I t' t t I I VALID FOR 180 DAYS TO $********84,5_00 THE North Carolina DENR ORDER Division of Land Resources OF: 1612 Nail Service Center Raleigh NC 27699-1612 Citizens Bank 919 North Market Street Hilaington, DR 19801 111000032L2644116 1:03 L LO L L561: 669900045811' FINANCIAL RESPONSIBILITY/OWNERSHIP FORM SEDIMENTATION POLLUTION CONTROL ACT No person may initiate any land-disturbing activity on one or more acres as covered by the Act before this form and an acceptable erosion and sedimentation control plan have been completed and approved by the Land Quality Section, N.C. Department of Environment and Natural Resources. (Please type or print and, if the question is not applicable or the e-mail and/or fax information unavailable, place N/A in the blank.) Part A. 1 Project Name: Lick Creek Stream Restoration Project 2. Location of land-disturbing activity: County: Durham City or Township: Durham Highway/Street: Olive Branch Road Latitude: 35°58'02"N Longitude: 78°46'44"W 3. Approximate date land-disturbing activity will commence: Fall 2009 4. Purpose of development (residential, commercial, industrial, institutional, etc.): Stream Restoration and Enhancement 5. Total acreage disturbed or uncovered (including off-site borrow and waste areas): 12.8 Acres 6. Amount of fee enclosed: 845.00. The application fee of $65.00 per acre (rounded up to the next acre) is assessed without a ceiling amount (Example: a 9-acre application fee is $585). 7. Has an erosion and sediment control plan been filed? Yes: No Enclosed X_ 8. Person to contact should erosion and sediment control issues arise during land-disturbing activity: Name: Joshua White E-mail Address: Jawhite(abmbakercorp.com Telephone: 919463-5488 Fax# 919-463-5490 9. Landowner(s) of Record (attach accompanied page to list additional owners): See Attached See Attached See Attached Name Telephone Fax Number See Attached See Attached Current Mailing Address Current Street Address See Attached See Attached City State Zip City State Zip 10. Deed Book No. See Attached Page No. See Attached Provide a copy of the most current deed. Part B. 1 Person(s) or firm(s) who are financially responsible for the land-disturbing activity (Provide a comprehensive list of all responsible parties on an attached sheet): Name: Talmage Layton E-mail Address: eculbersonAco.durham.nc.us Current Mailing Address: 721 Foster Street City, Durham State: NC Zip: 27701 Current Street Address: Same as Mailing Address Telephone: 919-560-0558 Fax Number- 919-560-0563 2. (a) If the Financially Responsible Party is not a resident of North Carolina, give name and street address of the designated North Carolina Agent: N/A Name E-mail Address Current Mailing Address Current Street Address City State Zip City State Zip Telephone Fax Number (b) If the Financially Responsible Party is a Partnership or other person engaging in business under an assumed name, attach a copy of the Certificate of Assumed Name. If the Financially Responsible Party is a Corporation, give name and street address of the Registered Agent: Name of Registered Agent E-mail Address Current Mailing Address Current Street Address City State Zip City State Zip Telephone Fax Number The above information is true and correct to the best of my knowledge and belief and was provided by me under oath (This form must be signed by the Financially Responsible Person if an individual or his attorney-in-fact, or if not an individual, by an officer, director, partner, or registered agent with the authority to execute instruments for the Financially Responsible Person). I agree to provide corrected information should there be any change in the information provided herein. Talma a Layton Durham Soil and Water Conservation Chair Type or print name Title or Authority O's, X51e I X4? a ?s- Signature Date( l SC`-' ?J • ' ' ,Q?? , a Notary Public of the County of State of North Carolina, hereby certify that O appeared personally before me this day and being duly sworn a nowledg d that the above form was executed by him. Witness my hand and notarial`p6#1ih, day of 1s111? , 200 MAR0 y 7. NOTARY Notary Seal PUBLIC ty G? My commission expires O r 4 ao) '????ijj .00 Financial Responsibility Form Attachment Lick Creek Restoration Project 1. Matthew & Koren Kartes (2 parcels) Deed Book: 004236, 004236 Page Number: 000556, 000556 Street Address: 401 Olive Branch RD, 452 Asbury CT City, State, Zip: Durham, NC 27703 Telephone no.: Fax no. • N/A Email Address: N/A Parcel ID 193391, 193431 Latitude & Longitude. (35.967°N, 78.783°W) (35.968°N, 78.783°W) Property Size: 4.08 Acres, 0.47 Acres 2 Herbert W. & Mattie Lee Patrick Deed Book. 000375 Page Number: 000713 Street Address: 427 Olive Branch Road City, State, Zip: Durham, NC 27703 Telephone no.: Fax no.: N/A Email Address. N/A Parcel ID: 193434 Latitude & Longitude: (35.966°N, 78.783°W) Property Size: 16.3 Acres 3 Triple Crown Farm-Earnest W. Warner JR. Deed Book: 01954 Page Number: 00149 Street Address: 5438 Wake Forest HWY City, State, Zip: Durham, NC 27703 Telephone no.: Fax no.: N/A Email Address: N/A Parcel ID: 193746 Latitude & Longitude: (35.977°N, 78.778°W) Property Size: 176.2 Acres m z z k64 - - - - - - - - - - - - - - - - - - - o a m I ?. I o ?g ? v se C" I I W Z °z -low r- ----- I R? r W ?,\?`? Iw I off{ z o ? 1 Is, P ,;; x I I a [? w Q U. U. q x 10" z o W o ?? s - - - - - - - - - - - - - - - ? U w V? t ? i v ? a+ 0 w? I? -- ?,? I ? J ? W - ---?' I W 15 O w. V U W o z a. O qw I I 4 V oo I I o e a Z of h I I "W ? o w j I ?1 ? j ? 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