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HomeMy WebLinkAbout20061804 Ver 10_401 Application_20131113OLD -1904 V 10 Environmental Consultants, 8412 Falls of Neuse Road, Suite 104, Raleigh, NC 27615 • Phone: (919) 846 -5900 • sandec.com November 6, 2013 S &EC Project #6658.P6 To: NC Division of Water Resources 401 & Buffer Permitting Unit Attn: Karen Higgins 512 N. Salisbury Street (e floor) Raleigh, NC 27604 From: Deborah Edwards Shirley Soil & Environmental Consultants, PA 8412 Falls of Neuse, Suite 104 Raleigh, NC 27615 Re: The Village at Flowers Plantation -POD 7C (The Nine) Clayton, Johnston County, NC On behalf of the applicant Rebecca Flowers, please find attached a complete application and supplemental information requesting a Riparian Buffer Authorization Approval. Please contact me at (919) 846 -5900 if you have any questions or require additional information. PROJECT SUMMARY Project Name The Village at Flowers Plantation -The Nine Project Type Residential Subdivision Owner / Applicant Rebecca Flowers County Johnston Nearest Town Clayton Waterbody Name I UT to Mill Creek Basin / Sub -basin Neuse /27 -39 Class WS-IV NSW IMPACT SUMMARY Wetland Impact (acres): 0 Open Water Impact (acres): 0 Total Impact to Waters of the U.S. (acres) 0 Total Stream Impact (linear feet): 0 Total Riparian Buffer Impacts (sq. ft.): 936 Zone 1 405 Zone 2 Attachments: J Pre - construction Notification Application Form Agent Authorization Form USGS Topographic Map & NRCS Soil Survey Map Q �fA(5 NBRRO 03-058 & IPRRO 08-013 404 Nationwide Permit Verification -AID SAW - 2008-01712 401 Water Quality Certification Approval -DWQ Project # 2006 -1804 v5 POD location Map NOV POD 7C-The Nine Construction Drawings - sheets C-01-C-7 POD 7C-The Nine Site work Calculations & Runoff Maps Data CD s� ot WA Lel- y � r o �c Office use Only: Corps action ID no. DWQ project no. Form Version 1.3 Dec 10 2008 Pre - Construction Notification (PCN) Form A. Applicant Information 1. Processing 1 a. Type(s) of approval sought from the Corps: ❑Section 404 Permit ❑Section 10 Permit 1 b. Specify Nationwide Permit (NWP) number. N/A or General Permit (GP) number. N/A 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 le. 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 1f. Is payment into a mitigation bank or in4ieu fee program proposed for mitigation of impacts? If so, attach the acceptance letter from mitigation bank or in4ieu 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: The Village at Flowers Plantation -POD 7C (The Nine) 2b. County: Johnston 2c. Nearest municipality / town: Clayton 2d. Subdivision name: The Village at Flowers Plantation 2e. NCDOT only, T.I.P. or state project no: WA 3. Owner Information 3a. Name(s) on Recorded Deed: DWF Development, Inc. 3b. Deed Book and Page No. Deed Book 4258, Page 040 3c. Responsible Party (for LLC if applicable): Rebecca D. Flowers 3d. Street address: 4880 Hwy 42 East 3e. City, state, zip: Clayton, NC 27527 3f. Telephone no.: 919 - 5534084 3g. Fax no.: N/A 3h. Email address: N/A Page 1 of 12 PCN Form — Version 1.3 December 10, 2008 Version 4. Applicant Information (if different from owner) 4a. Applicant is: ❑ Agent ® Other, specify: Owner please send correspondence to both Owner and Agent 4b. Name: Rebecca D. Flowers 4c. Business name (if applicable): DWF Development, Inc. 4d. Street address: 4880 Hwy 42 East 4e. City, state, zip: Clayton, NC 27527 4f. Telephone no.: 919 -553 -3084 4g. Fax no.: N/A 4h. Email address: N/A 5. Agent/Consultant Information (if applicable) 5a. Name: Deborah Edwards Shirley 5b. Business name (if applicable): Soil & Environmental Consultants, PA 5c. Street address: 8412 Falls of Neuse Road, Suite 104 5d. City, state, zip: Raleigh, NC 27615 5e. Telephone no.: 919 -846 -5900 5f. Fax no.: 919 - 846 -9467 5g. Email address: DShirley @SandEC.com Page 2 of 12 B. Project Information and Prior Project History 1. Property Identification la. Property identification no. (tax PIN or parcel ID): 1689962582 1b. Site coordinates (in decimal degrees): Latitude: 35.6633 Longitude: - 78.3603 (DD.DDDDDD) (- DD.DDDDDD) 1c. Property size: t 9.53 acres (this is a portion of the 65.47 acre tract) 2. Surface Waters 2a. Name of nearest body of water (stream, river, etc.) to UT to Mill Creek, 27 -39 proposed project: 2b. Water Quality Classification of nearest receiving water. WS -IV; NSW 2c. River basin: Neuse 03 -04 -02 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 existing conditions on site are forested. The general land use in the vicinity of the project are forested and new residential. 3b. List the total estimated acreage of all existing wetlands on the property: 0 acres 3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: Approximately 1,900 linear feet. 3d. Explain the purpose of the proposed project: The purpose of the proposed project is to provide a bypass channel for a level spreader. 3e. Describe the overall project in detail, including the type of equipment to be used: POD 7C, `The Nine" is a phase within the Village at Flowers Plantation project. Section 404 & 401 Individual Permit(Certification has previously been issued for the infrastructure within the development. The 401 Individual Certification requires a stormwater management plan to be designed and submitted for Approval per phase. For this phase, a level spreader has been designed. The level spreader requires a bypass channel through the riparian buffer. Equipment used will consist of excavators, dozers and other construction equipment. 4. Jurisdictional Determinations 4a. Have jurisdictional wetland or stream determinations by the Corps or State been requested or obtained for this property / project (including all prior phases) in the past? ® Yes ❑ No ❑ Unknown Comments: Sean Clark of Soil & Environmental Consultants, PA conducted a detailed wetland delineation and Neuse Buffer Evaluation. 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: Soil & Environmental Name (if known): Sean Clark Consultants, PA Other. 4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation. Action ID #'s 200320492; NBRRO 03 -058; IPRRO 08 -013 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. In 2010, an Individual Permit (AID SAW -2008 -01712) and Individual Certification (DWQ Project #20061804, Ver.3) were issued for the infrastructure within the Village at Flowers Plantation. These Approvals included 17 stream crossings. In 2013, a modification of Crossing #1 was requested. Updated Individual Permit and Individual Cet0cation were issued (DWQ Project #2006 -1804 v5). Page 3 of 12 PCN Form — Version 1.3 December 10, 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. N/A Page 4 of 12 C. Proposed Impacts Inventory 1. Impacts Summary la. 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 impact Type of wetland Forested (Corps - 404, 10 Area of impact Permanent (P) or (if known) DWQ — non -404, other) (acres) Temporary T W1 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W2 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W3 ❑ P [IT ❑ Yes ❑ Corps ❑ No ❑ DWQ W4 ❑ P [IT ❑ Yes ❑ Corps ❑ No ❑ DWQ W5 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W6 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ 2g. Total wetland Impacts 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. 3b. 3c. 3d. 3e. 3f. 3g. Stream impact Type of impact Stream name Perennial Type of jurisdiction Average Impact number - (PER) or (Corps - 404, 10 stream length Permanent (P) or intermittent DWQ — non -404, width (linear Temporary (T) (INT)? other) (feet) feet) S1 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ S2 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ S3 ❑ P [IT ❑ PER ❑ Corps ❑ INT ❑ DWQ S4 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ S5 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ S6 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ 3h. Total stream and tributary impacts 31. Comments: Page 5 of 12 PCN Form — Version 1.3 December 10, 2008 Version 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 indi 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 ❑P ❑T 02 ❑P ❑T 03 ❑P ❑T 04 ❑P ❑T R. Total open water impacts 4g. Comments: S. Pond or Lake Construction If pond or lake construction proposed, then complete the chart below. 5a. Pond ID number 5b. Proposed use or purpose of pond 5c. Wetland Impacts (acres) 5d. Stream Impacts (feet) 5e. Upland (acres) 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: Page 6 of 12 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. ® Neuse ❑ Tar - Pamlico ❑ Other. Project is in which protected basin? ❑ Catawba ❑ Randleman 6b. 6c. 6d. 6e. 6f. 6g. Buffer impact number— Reason for impact Buffer Zone 1 impact Zone 2 impact Permanent (P) or Stream name mitigation (square feet) (square feet) Temporary T required? 131 ( #1) ® P C] T Bypass Channel UT to Mill Creek El Yes ® No 936 405 B2 ❑P ❑T ❑Yes ❑ No B3 ❑P [IT ❑Yes ❑ No B3 ❑P ❑T ❑Yes ❑ No 6h. Total buffer impacts 936 405 6i. Comments: Impact # 1 is an °allowable °use according to 15A NCAC 02B. 0233(6). Page 7 of 12 D. Impact Justification and Mitigation 1. Avoidance and Minimization la. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project. Per the most recent version of the DWQ BMP manual, a bypass channel is necessary for the proposed level spreader which will result in 1,341 ft2 of riparian buffer impacts. The width of the channel has been minimized and it has been designed to intercept the stream at an angle. 1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques. Measures such as tree protection fencing and sediment fencing to protect existing riparian buffers and water quality during construction activities will take place. 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 ❑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 1.3 December 10, 2008 Version 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 6c. Reason for impact 6d. Total impact (square feet) Multiplier 6e. Required mitigation (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 in4leu fee fund). 6h. Comments: Impacts proposed are an °allowable °use according to 15A NCAC 028.0233(6) Page 9 of 12 E. Stormwater Management and Diffuse Flow Plan (required by DWQ) 1. Diffuse Flow Plan la. 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? If no, explain why. ® Yes ❑ No Comments: 2. Stormwater Management Plan 2a. What is the overall percent imperviousness of this project? 13% 2b. Does this project require a Stormwater Management Plan? ❑ Yes ® No 2c. If this project DOES NOT require a Stormwater Management Plan, explain why: The stormwater from the roadside ditches will be directed to a flow splitter structure that will divert the 1 "storm to the 15' wide concrete level spreader. The overflow water is diverted into a hprap channel that discharges directly to the stream. 2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan: ❑ Certified Local Government 2e. Who will be responsible for the review of the Stormwater Management Plan? ❑ DWQ Stormwater Program ❑ DWQ 401 Unit 3. Certified Local Government Stormwater Review 3a. In which local government's jurisdiction is this project? ❑ Phase II 3b. Which of the following locally- implemented stormwater management programs ❑ NSW ❑ USMP apply (check all that apply): ❑ Water Supply Watershed ❑ Other. 3c. Has the approved Stormwater Management Plan with proof of approval been ❑ 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): ❑ 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 10 of 12 PCN Form — Version 1.3 December 10, 2008 Version F. Supplementary Information 1. Environmental Documentation (DWQ Requirement) la. Does the project involve an expenditure of public (federal /stateflocal) 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 2B .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): N/A 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. We have reviewed the "Draft Internal Policy, Cumulative impacts and the 401 Water Quality Certification and Isolated Wetlands Programs" document prepared by the NC Division of Water Quality on April 10, 2004, version 2.1. The draft states that many private developments are unlikely to cause cumulative impacts, including projects such as urban in -fill, most residential subdivisions and small commercial developments as well as agricultural and silvicultural operations. The POD 7, The Nine project is a 10 -lot development. We anticipate that the DWQ will advise us if any additional information is needed. 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 connects to an existing sanitary sewer system. The local municipality will ensure that the capacity of their treatment facility will not be exceeded. Page 11 of 12 PCN Form — Version 1.3 December 10, 2008 Version 5. Endangered Species and Designated Critical Habitat (Corps Requirement) — NIA 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? ❑ 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? 6. Essential Fish Habitat (Corps Requirement) — NIA 6a. Will this project occur in or near an area designated as essential fish habitat? FO Yes ❑ No 6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat? 7. Historic or Prehistoric Cultural Resources (Corps Requirement) — NIA 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? S. Flood Zone Designation (Corps Requirement) —NIA 8a. Will this project occur in a FEMA- designated 100 -year floodpiain? ❑ Yes ❑ No 8b. If yes, explain how project meets FEMA requirements: 8c. What source(s) did you use to make the floodpiain determination? Deborah E. Shirley November 6, 2013 Applicant/Agent's Printed Name Applicant/Agent's Signatu e Date (Agent's signature is valid only If an authorization letter from the licant is provided.) Page 12 of 12 Name: Environmental Consultants, PA Road • Raley North Canolma 27614 • Phow: (919) $t& 900 • Fax: (919) 846 -9467 waw.S- AEC.cam . AGENT AUTHORIZATION FORM All Blanks To Be Filled In y The Current Landowner Address: Phone: Project Name /Description: Date: lo- ( *"7 —1-3 The Department of the Army U.S. Army Corps of Engineers, Wilmington District P.O. Box 1890 Wilmington, NC 28402 Attn: Re: Wetlands Related Consulting and Permitting To Whom It May Concern: S&EC Project # U W Field Office: I, the current ro owner, hereby designate and authorize Soil & Environmental Consultants, PA to act in my behalf as my agent in the processing of permit applications, to furnish upon requeqt supplemental information in support of applications, etc. from this day forward. Theday of i1G�Qr( This notification supersedes any previous correspondence concerning the agent for this project. NOTICE: This authorization, for liability and professional c4S&EC is valid only for government officials to enter the property when accompanieYou should call S&EC to arrange a site meeting prior to visiting the site. . Row "s Print Property Owner's Name ignature cc: Ms. Karen Higgins cc: Ms. Deborah Edwards Shirley NCDENR - DW4 Soil & Environmental Consultants, PA 512 N. Salisbury St. Raleigh, NC 27604 j Overall Flowers Project Area (Approx.) t I / I-T� rl 4 W*E r The Nine Project Area (Approx. ) m V9'�w 'f ry�ryy� 2,000 4,000 Nor- Feet m 8,000 1 i Project No. USGS Vicinity Map 0 6658.P6 Flowers Property, Project Mgr.: The Nine DS Johnston Co., NC Scale: 1" = 2,000' 2013 -10 -31 2013 Flowers USGS Quadrangle m V9'�w 'f ry�ryy� 2,000 4,000 Nor- Feet m 8,000 1 i Cos Pat ::m qo Overall Flowers Project 1 *" Area (Approx.) T��, AAMI rlSfa...r cv::,a� I The \ y` Area (Approx. d or i Ge8 ' M.Q _ o'B Am u LAB J y • l Pat) q /l McB .. Y r � Project Ivo. Soil Survey Map 6658.P6 Flowers Property, Project Mgr.: The Nine DS Johnston Co., NC Scale: 1" = 2,000' 1994 Johnston Co. 2013 -10 -31 Soil Survey, Map Sheet 2 .A , 2,000 4,000 Feet ram McB MAA 8,000 1 State of North Carolina Department of Environment and Natural Resources Raleigh Regional Office Michael F. Easley, Governor William G. (Bill) Ross, Secretary RIT NCDENR Nonni CAROLINA DEPARTMeNT of ENVIRONMENT AND NA'LiRAL RE3ouRces Division of Water Quality March 10, 2003 Sean Clark Soil & Environmental Consultants, Inc. 11010 Raven Ridge Road Raleigh, NC 27614 Subject: Neuse River Basin Buffer Rules NBRRO 03 -058 Flowers Tract 2 S &EC #01 -6658 Clayton, Johnston County, NC Dear Mr. Clark: This letter will serve as confirmation of the buffer determination made by S&EC at the subject property referenced by the Raleigh Regional Office as NBRRO 03 -058. On September 4, 2002, I conducted a site visit of the features involved in the above referenced project as identified on the attached maps. It was determined that the features shown on the Johnston County Soil Survey and on the USGS Flowers, NC Quad map could potentially be subject to protection under the Neuse River Basin: Nutrient Sensitive Waters Management Strategy; Protection and Maintenance of Existing Riparian Areas, Administrative Code T15A: 02B.0233 (NCAC .0233). feature starting point A subject throughout property B flag SC 01 C flag CGC 200 D flag WWC 34 E flag WWC 28 F subject, starts off property through to confluence of A 1628 Mail Service Center, Raleigh, NC 27699.1628 Telephone (919)571 -4700 FAX (919)571 -4718 An Equal Opportunity Affirmative Action Employer 50% recycled/10% post - consumer paper Zt S& EC �ArF9 QG �r�r♦ � S &EC Attn: Kevin Martin 11010 Raven Ridge Road Raleigh, NC 27614 Michael F. Easley, Governor William 0. Ross, Jr., Secretary North Carolina Department of Environment and Natural Resources February 25, 2008 INTERMITTENT/PERENNIAL (I/P) STREWDETERMINATION Project Name: Flowers Tract Coleen H. Sullins, Director Division of Water Quality FEB 2 B 2008 or sail S Ftr•em m^nr71 Catr,nitnls PA IPRRO.08 -013 County: Johnston Location/Directions: in all four quadrants of the intersection of Buffalo Road (SR 1003) and NC 42 Subject Stream(s): UTs to Mill Creek and Buffalo Creek Date of UP Determination(s): 2/5/2008 Feature I/P call* Location of I/P Point (GPS Points and/or Flag) Notes/Basis for CaU (Stream Form Rating, Biol. indicators, etc.). BC #1 P (not contested) At proposed crossing BC #2 P (not contested) At proposed crossing BC #3 p (not contested) At proposed crossing BC #5 (Mill Creek) P (not contested) At proposed crossing BC #6 I At proposed- crossing BC #7 P' (not contested) At proposed' crossing "BC #8 P (not contested) At proposed crossing BC #11 P (not contested) At proposed crossing BC #12 1 At proposed crossing BC #13 I At proposed crossing BC #14 I At proposed crossing *Intermittent/Perennial This on -site determination shall expire five (S) years from the date of this letter. Landowners or affected partles that dispute a determination made by the DWQ or Delegated Local may request a determination by the Director. A request for a determination by the Director shall be referred to the Director in writing do gndl Karoly, DWQ Wedan&1401 Unify 2321 Crabtree Blvd, Raleigh, NC 27604 -2260. You must act within 60 days of the date that you receive this letter. Applicants are hereb, Cate not j�d that-the 60-day statutory appeal time does not start until the affected party (including Naw downstream and adjacent landowners) is notified of this decision. DWQ recommends that the North Carolina Division of Water Quality Raleigh Regional Office Surface Water Protection Phone (919) 791 -4200 Customer Service Internet h2o enr state.rr us 1628 Mail Service Center Raleigh, NC 27699 -1628 FAX (919) S71 -4718 1- 877 - 623 -6748 An Equal OpportunilylAffmidve Adlon Employer— 50% Revided110% Post Consumer Paper 2/25/08 Page 2 of 2 applicant conduct this notification in order to be certain that third party appeals are made in a timely manner. To ask for a hearing, send a written petition, which conforms to 'Chapter 150B of the North Carolina General Statutes to the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, N._CC, 27699 -6714. This determination is fcnal and binding unless you ask for a hearing within 60 days. The (owner /future owners) should notify the Division of Water Quality (including any other Local; State, and Federal Agencies) of this decision concerning any future correspondences regarding the subject properly (stated above). This project may require a Section 4041401 Permit for the proposed activity. Any inquiries should be directed to the Division of Water Quality (Central Office) at (919)- 733- 1786, and the US Army Corp of Engineers (Raleigh Regulatory Field Of, juice) at (919) -876 -8441. Respectfully, Lauren C. Witherspoon Environmental Senior Specialist CC: DWQ -RRO Files Central Files DWQ 401Unit fitly North Carolina Division of Water Quality Raleigh Regional Office Surface Water Protection Phone (919) 791 -4200 Customer Service Intemet h2o.enrstate.nC.us 1628 Mail Service Center Raleigh, NC 27699 -1628 FAX (919) 571 -4718 1- 877 - 623 -6748 An Equal Opportunk /Affirmative Action Employer— 50% Recgdedll0% Post Consumer Paper DEPARTMENT OF THE ARMY WILMINGTON DISTRICT, CORPS OF ENGINEERS 69 DARUNGTON AVENUE WILMINGTON, NORTH CAROLINA 284031343 RMYTO OF: January 9, 2013 AMWW Regulatory Division/1200A Action ID.: SAW- 2008 -01712 Ms. Rebecca Flowers River Dell Company, Inc. 4880 NC 42 East Clayton, North Carolina 27527 Dear Ms. Flowers: RECEIVED JAN 1 i 2OU Reference the Department of the Army (DA) permit issued on April 22, 2010, which authorized permanent impacts to 868 linear feet (If) of important stream, 4161f of unimportant stream and 0.122 acre of non - riparian wetlands to construct seventeen (17) road crossings. In addition, the permit authorized temporary impacts to 1601f of important stream, 601f of unimportant stream and 0.005 acre of wetlands associated with the construction of these road crossings, at the intersection of NC Hwy 42 and SRI 003, east of Clayton, Johnston County, North Carolina Reference is also made to the letter from Ms. Deborah Edwards of Soil and Environmental Consultants (authorized agent) dated December 20, 2012, requesting modification of the impacts associated with Impact Area 1, and to Phase 1 of Special Condition "1 ". Impact area 1 is currently authorized for 1501f of permanent impacts and 201f of temporary impacts. You have requested that these impacts be reduced to 1081f of permanent impacts and 0 If of temporary impacts. Special Condition "P' currently states that for Phase 1 of the project, you are required to make payment to the North Carolina Ecosystem Enhancement Program (NCEEP) in the amount necessary to perform restoration to 150 If of stream before December 31, 2012. You have requested to modify this condition to now require the purchase of 108 credits from the EBX Neu -Con Stream Umbrella Mitigation Bank. The Corps has completed the evaluation of your request and concurs with your request for a change in impacts associated with your referenced DA permit, including the change to plans and mitigation method and amount, as requested. These changes are referenced in the following conditions. Special condition "a" of your permit is hereby modified to read: "All work authorized by this permit must be performed in strict compliance with the attached plans, Exhibit A and Exhibit B, which are a part of this permit. These plans reflect the original proposal, Exhibit A; and the modifications as depicted within the modification proposal as shown in Exhibit B. Only the attached modification plans reflect approved changes to the original plans; therefore, any additional deviations from the original plans are not approved per this modification and any further modification to the plans must be approved by the US Army Corps of Engineers (USACE) prior to implementation." Special condition "1" of your permit is hereby modified to read: "The applicant will make phased mitigation payments to either an approved mitigation bank or the NCEEP as listed in the table below. The cost of credits will be the current price at the time of payment, not the current price at the time the permit was issued. No work on any phase of the project shall begin until the payment for that phase has been issued. Phase Number Impact Areas Mitigation Construction/Mitlgation Mitigation Required Payment Deadline Provider 1 1 108 credits EBX Neu -Con 6/30/2013 Umbrella Mitigation Bank 2 2 115 If of stream 12/31/2015 NCEEP 981 of stream & NCEEP 0.019 acres of 5, 12, 18, and wetland (All wetland mitigation 12/31/2019 paid under the EEP % acre minimum 4 3 150 9 of stream 12/31/2021 NCEEP 5 6,7,8,13 and 14 2951 of stream 12/31/2025 NCEEP 601 of stream & NCEEP 6 11, 16, 17 0.007 acres of wetland (wetland 112/311=27 aid with phase 3 0.096 acres of NCEEP 7 9.10 wetland (paid with phase 12/31/2029 3 2 In order to compensate for impacts associated with this permit, mitigation shall be provided in accordance with the provisions outlined on the most recent version of the attached Compensatory Mitigation Responsibility Transfer Form. The requirements of this form, including any special conditions listed on this form, are hereby incorporated as special conditions of this permit authorization." Please note that all other permit conditions and exhibits remain in effect as written. Should you have questions, contact Mr. Thomas Brown, Raleigh Regulatory Field Office at telephone (919) 554 -4884, Extension 22. Attachments Sincerely, Jean B. Gibby Chief; Raleigh Regulatory Field Office 3 4 A- .D ff A RIMA North Carolina Department of Environment and Natural Resources Division of Water Quality Pat McCrory Charles Wakild, P. E. John E. Skvarla, Ul Governor Director Secretary February 22, 2013 River Dell Company, Inc. Attn: Ms. Rebecca Flowers 4880 NC 42 East, Clayton, NC 27527 Subject: APPROVAL of 401 Water Quality Certification Authorization Certificate per the Neuse Riparian Buffer Rules The Village At Flowers Plantation USACE Action ID. No. SAW - 2008 -01712 Dear Ms. Flowers: DWQ #: 2006 -1804 v5 County: Johnston IV FEB 2 6 2013 DO By: soil B i�t+Faatla�tl1 C aehaE:a P� Attached hereto is a copy of Certification No. 3766 issued to Ms. Rebecca Flowers and River Dell Company, Inc., dated January 10, 2013. This Certification replaces the Certification issued to you on March 15, 2010. In addition, you should get any other federal, state or local permits before you go ahead with your project including (but not limited to) Sol!; Waste, Sediment and Erosion Control, Dam Safety, Non - discharge and Water Supply Watershed regulations. You can contest this Certification as provided in Articles 3 and 4 of General Statute 1506 by filing a written petition for an administrative hearing to the Office of Administrative Hearings. You may obtain a petition form from the Office of Administrative Hearings at htto: / /www.ncoah.com/ or call (919) 431 -3000 for Information. Within sixty (60) calendar days of receipt of this Certification, you must file the petition with the Office of Administrative Hearings. A petition is considered filed when the original and one (1) copy is- received in the Office of Administrative Hearings during normal office hours (Monday through Friday between 8:00am and 5:00pm, excluding official state holidays). The petition may be faxed to the Office of Administrative Hearings at (919) 431 -3100, provided the original and one copy of the petition is received by the Office of Administrative Hearings within five (5) business days following the faxed transmission. Wetlands. Suffers. St rilmter- Comotlante and PerrOng (Wetimpe) unit 1650 Mai; � ice Center, Raleigh. Ninth Carona 17699.1650 e Loce`in: 512 N SaW ury St Fb4h, Norgi iemlina 27604 MdfthCarolina Phone Ole 607•$?90 ' cAX 91P.801-194 t Cuilvi e Serv:ne 1 a77-?" C744 tlltlll'II�jP� Inlem,; ww:: ia,atw : it ly.ur.� The Wllage at Flowers PlantoWn Page 2 of 8 February 22, 2013 Mailing address for the Office of Administrative Hearings: Office of Administrative Hearings 6714 Mall Service Center Raleigh, NC 27699 -6714 One (1) copy of the petition must also be served to DENR: William Cary, General Counsel Department of Environment and Natural Resources 1601 Mail Service Center Raleigh, NC 27699 -1601 Unless such a petition is filed, this Certification shall be final and binding. If we can be of further assistance, do not hesitate to contact us. Sincerely, Karen Higgins, Supervisor Wetlands, Buffers, Stormwater — Compliance & Permitting Unit cc: Jeff Garnett, EPA, Sam Nunn Federal Center, 61 Forsyth Street SW, Atlanta, GA 30303 U.S. Army Corps of Engineers, Raleigh Regulatory Field Office, Wilmington District DWQ RRO 401 files ,.Deborah Edward_s;_S &EC, PA, -11010 Raven Ridge Road, Raleigh, NC 27614 File Copy Mmame: FBemme:05=4 Pt ntftnilohnsWn) 401 NBRdm The Village at Flowers Plantation Page 3 of 8 February 22, 2013 NORTH CAROLINA 401 WATER QUALITY CERTIFICATION THIS CERTIFICATION is issued in conformity with the requirements of Section 401 Public Laws 92- 500 and 95 -217 of the United States and subject to the North Carolina Division of Water Quality (DWQ) Regulations in 15 NCAC 02H .0500, to Ms. Rebecca Flowers and River Dell Company, Inc., who have authorization to place fill within or otherwise permanently impact 0.122 acres of 404 /wetiand,1,242 linear feet of stream, 76,644 square feet of Zone 1 Neuse River basin protected riparian buffer and 38,891 square feet of Zone 2 Neuse River basin protected riparian buffer, and to place fill within or otherwise temporarily impact 0.005 acres of 404 /wetland and 200 linear feet of stream, as described within your application received by the N.C. Division of Water Quality (Division) on May 1, 2008, and by Public Notice issued by the U. S. Army Corps of Engineers and received by the Division on May 30, 2008, with additional Information received July 16, 2008, September 12, 2008, October 23, 2008 and February 4, 2010 and modification request received December 20, 2012. The application and supporting documentation provides adequate assurance that the proposed work will not result in a violation of applicable Water Quality Standards and discharge guidelines. Therefore, the State of North Carolina certifies that this activity will not violate the applicable portions of Sections 301, 302, 303, 306, 307 of PL 92 -500 and PL 95-217 if conducted In accordance with the application, the supporting documentation, and conditions hereinafter set forth. This approval is for the purpose and design that you described in your application and as described in the Public Notice. If you change your project, you must notify us and you may be required to send us a new application. If the property is sold, the new owner must be given a copy of this Certification and approval letter and is thereby responsible for complying with all conditions. Any new owner must notify the Division and request the Certification be issued in their name. If total fills for this project (now or in the future) exceed one acre of wetland or 150 linear feet of stream, compensatory mitigation may be required as described in 15A NCAC 02H .0506 (h). This approval requires you to follow the conditions listed in the certification below. Conditions of Certification: 1. Impacts Approved The following impacts are hereby approved as long as all of the other specific and general conditions of this Certification (or Isolated Wetland Permit) are met. No other Impacts to wetlands, streams, and /or buffers, are approved including incidental impacts: Type of Impact Amount Approved (Units) Plan Location or Reference 404/Wetlands - permanent 0.122 (acres) lication and Public Notice 404/Wetlands - temporary 0.005 (acres) Application and Public Notice Stream - permanent 1,242 linear feet) Application and Public Notice Stream -temporary 200 (linear feet) Application and Public Notice Buffers Zone 1 76,644 (square ft.) Application and Public Notice The Village at Flowers Plantation Page 4 of S February 22, 2013 Buffers Zone 2 138,891 (square ft.) I Application and Public Notice 2. Mitigation In order to compensate for 0.122 acre of permanent impacts to wetlands, 0.005 acre of temporary impacts to wetlands, 826 linear feet of permanent impacts to streams, and 200 linear feet of temporary impacts to streams, the permittee shall make payment to the Neu - Con Stream Umbrella Mitigation Bank (Neu -Con) and the North Carolina Ecosystem Enhancement Program (NC EEP) in the amount determined by the NCEEP, sufficient to perform the restoration of 0.214 acre of non - riparian wetland and 826 linear feet of warm water stream in the Neuse River Basin, Cataloging Unit 03020201. Construction within jurisdictional areas on the property shall begin only after the permittee has made payments per the below mitigation table to the Neu -Con and /or NCEEP and provided a written confirmation to the'Corps that it agrees to accept responsibility for the mitigation work required, in compliance with the MOU between North Carolina Department of Environment and Natural Resources and the United States Army Corps of Engineers, Wilmington District, dated November 4, 1998. The applicant will make phased mitigation payments to the Neu -Con and /or NCEEP as listed in the table below. The cost of credits will be the current price at the time of payment, not the current price at the time the permit was issued. No work on any phase of the project shall begin until the payment for that phase has been issued to Neu -Con and /or NCEEP. In addition to the mitigation outlined above, the permittee shall also preserve 5,839 linear feet of Mill Creek with a 100 ft. undisturbed riparian buffer (13.67 acres) along the east side of Mill Creek, and shall preserve 1,543 linear feet of an unnamed tributary (UT) to Mill Creek with a full 50 ft. undisturbed riparian buffer (2.44 acres) along each side of the UT to Construction/ Phase Impact Mitigation Required Mitigation Mitigation Number Areas provider Payment Deadline 1 1 108 LF of stream Neu -Con 01/30/2013 2 2 115 LF of stream NCEEP 12/31/2015 98 LF of stream & 0.019 acres of 3 5,12,18, and 19 wetland (All wetland mitigation paid NCEEP 12/31/2019 under the EEP X acre minimum) 4 3 150 LF of stream NCEEP 12/31/2021 5 6, 7, 8,13, 295 LF of stream NCEEP 12/31/2025 and 14 6 11,16,17 60 LF of stream & 0.007 acres of NCEEP 12/31/2027 wetland (wetland paid with phase 3) 7 9,10 0.096 acres of wetland NCEEP 12/31/2029 (paid with phase 3) In addition to the mitigation outlined above, the permittee shall also preserve 5,839 linear feet of Mill Creek with a 100 ft. undisturbed riparian buffer (13.67 acres) along the east side of Mill Creek, and shall preserve 1,543 linear feet of an unnamed tributary (UT) to Mill Creek with a full 50 ft. undisturbed riparian buffer (2.44 acres) along each side of the UT to The Village at Flowers Plantation Page 5 of a February 22, 2013 Mill Creek by means of Declaration of Restrictions. The Declaration of Restrictions shall be Identical to the model Declaration of Restrictions found on the USACE Wilmington District website, unless changes are authorized in writing by the Wilmington District. The Declaration of Restrictions shall be recorded at the Register of Deeds office within 90 days of the issuance of the 404 Individual Permit, and a copy of the recorded Declaration shall be provided to the Wilmington District and the DWQ within 30 days of its recordation. The permittee shall take no action inconsistent with the terms of the Declaration before its recordation. 3. Diffuse Flow Plan Approval by DWQ a) The SMP approved by the DWQ consists of three level spreaders and all associated stormwater conveyances, inlet and outlet strictures, and the grading and drainage patterns depicted on plan sheets dated June 29, 2011 and September 27, 2012, which are incorporated by reference into this approval and are enforceable by DWQ .provided however that any modification of the design for the stormwater management system that is accepted by DWQ shall take precedence over the original plans and specifications. b) The maximum allowable drainage areas and built upon areas for the approved level spreaders shall be in accordance with the table below. Any changes to these maximum areas shall require the applicant to submit and receive approval for a revised stormwater management plan by the DWQ. c) The footprint of all stormwater management devices as well as an additional 10 -foot wide area on all sides of the devices shall be located in either public rights -of - -way, dedicated common areas or recorded easement areas. The final plats for the project showing all such rights -of -way, common areas and easement areas shall be in accordance with the approved plans. d) Maintenance activities for the level spreaders shall be performed in accordance with the notarized O &M agreements signed by Ms. Rebecca Flowers (Owner) on December 19, 2012. The 0 &M agreement must transfer with the sale of the land or transfer of _ ownership /responsibility for the BMP facility. DWQ must be notified promptly of every transfer. 4. No waste, spoil, solids, or fill of any kind shall occur in wetlands, waters, or riparian areas beyond the footprint of the impacts depicted in the 404 /401Permit Application. All construction activities, Including the design, installation, operation, and maintenance of Maximum drainage area (square feet) Maximum built upon area (square feet) Levels reader 1 7,841 3,920 Level spreader 2 231,304 62,452 Level spreader 3 63,991 16,988 c) The footprint of all stormwater management devices as well as an additional 10 -foot wide area on all sides of the devices shall be located in either public rights -of - -way, dedicated common areas or recorded easement areas. The final plats for the project showing all such rights -of -way, common areas and easement areas shall be in accordance with the approved plans. d) Maintenance activities for the level spreaders shall be performed in accordance with the notarized O &M agreements signed by Ms. Rebecca Flowers (Owner) on December 19, 2012. The 0 &M agreement must transfer with the sale of the land or transfer of _ ownership /responsibility for the BMP facility. DWQ must be notified promptly of every transfer. 4. No waste, spoil, solids, or fill of any kind shall occur in wetlands, waters, or riparian areas beyond the footprint of the impacts depicted in the 404 /401Permit Application. All construction activities, Including the design, installation, operation, and maintenance of The Village at Flowers Plantation Page 6 of B February 22, 2013 sediment and erosion control Best Management Practices, shall be performed so that no violations of state water quality standards, statutes, or rules occur., S. Standard Erosion and Sediment Control Practices Erosion and sediment control practices must be in full compliance with all specifications governing the proper design, installation and operation and maintenance of such Best Management Practices and if applicable, comply with the specific conditions and requirements of the NPDES Construction Stormwater Permit issued to the site: a. Design, Installation, operation, and maintenance of the sediment and erosion control measures must be such that they equal or exceed the requirements specified in the most recent version of the North Carolina Sediment and Erosion Control Manual. The devices shall be maintained on all construction sites, borrow sites, and waste pile (spoil) projects, including contractor -owned or leased borrow pits.associated with the project. b. For borrow pit sites, the erosion and sediment control measures must be designed, Installed, operated, and maintained in accordance with the most recent version of the North Carolina Surface Mining Manual. c. Reclamation measures and implementation must comply with the reclamation in accordance with the requirements of the Sedimentation Pollution Control Act and the Mining Act of 1971. d. Sufficient materials required for stabilization and /or repair of erosion control measures and stormwater routing and treatment shall be on site at all times. 6. No Sediment and Erosion Control Measures in Wetlands or Waters Sediment and erosion control measures shall not be placed in wetlands or waters. If placement of sediment and erosion control devices in wetlands and waters is unavoidable, then design and placement of temporary erosion control measures shall not be conducted in a manner that may result in dis- equilibrium of wetlands, stream beds, or banks, adjacent to or upstream and downstream of the above structures. All sediment and erosion control devices shall be removed and the natural grade restored within two (2) months of the date that the Division of Land Resources (DLR) or locally delegated program has released the specific area within the project. 7. Construction Stormwater Permit NCGO10000 An NPDES Construction Stormwater Permit is required for construction projects that disturb one (1) or more acres of land. This Permit allows stormwater to be discharged during land disturbing construction activities as stipulated in the conditions of the permit. If your project is covered by this permit, full compliance with permit conditions including the erosion & sedimentation control plan, inspections and maintenance, self- monitoring, record keeping and reporting requirements is required. A copy of the general permit (NCG010000), inspection log sheets, and other information may be found at http: // portal. ncdenr. ora /web/wg /ws /su /npdessw#tab -w. The Village at Flowers Plantation Page 7 of 8 February 22, 2013 B. Protective Fencing The outside buffer, wetland or water boundary and along the construction corridor within these boundaries approved under this authorization shall be clearly marked with orange warning fencing (or similar high visibility material) for the areas that have been approved to Infringe within the buffer, wetland or water prior to any land disturbing activities 9. Deed Notifications Deed notifications or similar mechanisms shall be placed on all retained jurisdictional wetlands, waters and protective buffers in order to assure compliance for future wetland, water and buffer impact. These mechanisms shall be put in place at the time of recording of the property, or of individual lots, whichever is appropriate. A sample deed notification can be downloaded from the Wetlands, Buffers, Stormwater, Compliance and Permitting Unit web site at: http: / /oortal.ncdenr.ora/ web /w4 /swo /ws/ 401 /certsandpermits/apply /forms. The text of the sample deed notification may be modified as appropriate to suit to this project. 10. Re- opener Clause Ms. Rebecca Flowers and River Dell Company, Inc. and its authorized agents shall conduct its activities in a manner consistent with State water quality standards (including any requirements resulting from compliance with section 303(d) of the Clean Water Act) and any other appropriate requirements of State law and federal law. Ms. Rebecca Flowers and River Dell Company, Inc. shall require its contractors (and /or agents) to comply with all of the terms of this Certification, and shall provide each of its contractors (and /or agents) a copy of this Certification. A copy of this Certification shall be included In the construction contract and available on the job site at all times. If the Division determines that such standards or laws are not being met (including the failure to sustain a designated or achieved use) or that State or federal law is being violated, or that further conditions are necessary to assure compliance, the Division may reevaluate and modify this certification to Include conditions appropriate to assure compliance with such standards and requirements in accordance with 15A NCAC 02H .0507(d). Before modifying the certification, the Division shall notify Ms. Rebecca Flowers and River Dell Company, Inc. and the U.S. Army Corps of Engineers and provide public notice in accordance with 15A NCAC 02H .0503. Any new or revised conditions shall be provided in writing to Ms. Rebecca Flowers and River Dell Company, Inc. shall be provided to the U.S. Army Corps of Engineers for reference in any permit issued pursuant to Section 404 of the Clean Water Act, and shall also become conditions of the 404 Permit for the project. 11. Certificate of Completion The applicant and /or authorized agent shall provide a completed Certificate of Completion Form to the DWQ Webscape Unit within ten days of project completion (available at: http: / /portal. ncdenr.ordweb /wcdswp /ws/ 401 /certsandi3ermits /appiv /forms). The Village at Flowers Plantation Page 8 of 8 February 22, 2013 12. This certification grants permission to the director, an authorized representative of the Director, or DENR staff, upon the presentation of proper credentials, to enter the property during normal business hours This approval to proceed with your proposed Impacts or to conduct Impacts to waters as depicted In your application shall expire upon expiration of the 404 or LAMA Permit. This the 22nd day of February 2013 DIVISION OF WATER QUALITY )Zl�arles Wakild, P.E. 3766 CW /kah :1019 kwllL:Z"Qw5F ow all L _S: t ter►;_. :1 .`. - 1. jI 'i% 71►\� Iil']01% aVflI�1is j�;. � ri DID- 1%04 V10 Flowers Plantation "The Nine" Owner/Developer: Rebecca Flowers 4880 NC 42 East Clayton, NC 27520 Phone: (800) 343-0669 (STOCK PVC 3 P.A. 1100 Eastern avenue Phone: 252.459.8196 PO Box 1108 Fax: 252.459.8197 Nashville, NC 27856 Mobile: 252.903.6891 Email: mstocks@stocksengineering.com Stocks Engineering, P.A. 1100 Eastern Avenue PO BOX 1108 Nashville, NC 27856 Project: Flowers The Nine Date: September 17, 2013 Page: I of I Post-Development 11401 A MAMMe W; I Atc f A 5 la 0.24 0.38 1.00 0.09 5 lb 1.81 0.35 1.00 0.63 5 Ila 0.08 0.65 1.00 0.05 5 lib 0.05 0.65 1.00 0.03 5 lic 0.27 0.37 1.00 0.10 5 lid 0.30 0.38 1.00 0.1 5 111 0.14 0.30 1.00 0.04 Totals 2.89 J Post-Development 1 1.07 1 ,,6?. MY 0 z0m= A 5 la 0.24 0.38 7.38 0.67 5 lb 1.81 0.35 7.38 4.68 5 Ila 0.08 0.65 7.38 0.38 5 Ilb 0.05 0.65 7.38 0.24 5 lic 0.27 0.37 7.38 0.74 5 lid 0.30 0.38 7.38 0.84 j 5 j III j 0.14 j 0.30 7.38 0.3 Totals 1 2.89 J Post-Development 1 7.86 1 v4x_O%i A-10, Aw-A n, 12A -0-1 'Zx;�; z0m= MMM 5 la 0.24 0.38 8.21 0.75 5 lb 1.81 0.35 8.21 5.20 5 Ila 0.08 0.65 8.21 0.43 5 fib 0.05 0.66 8.21 0.27 5 lic 0.27 0.37 8.21 0.82 5 lid 0.30 0.38 8.21 0.94 5 111 0.14 0.30 8.21 0.34 Totals 2.89 1 1 8.74 1 Runoff Computations I Inch Storm 10 Year Storm 26-Year Storm Culvert Report Hydraflow Express by Intellsoh+e Thursday, Sep 19 2013 Ilb Pipe Invert Elev Dn (ft) = 247.54 Calculations Pipe Length (ft) = 20.00 Qmin (cfs) = 0.62 Slope ( %) = 13.85 Qmax (cfs) = 0.62 Invert Elev Up (ft) = 250.31 Tailwater Elev (ft) = (dc +D) /2 Rise (in) = 15.0 Shape = Cir Highlighted Span (in) = 15.0 Qtotal (cfs) = 0.62 No. Barrels = 1 Qpipe (cfs) = 0.62 n -Value = 0.012 Qovertop (cfs) = 0.00 Inlet Edge = Projecting Veloc Dn (ft/s) = 0.77 Coeff. K,M,c,Y,k = 0.0045, 2, 0.0317, 0.69, 0.5 Veloc Up (ft/s) = 2.60 HGL Dn (ft) = 248.32 Embankment HGL Up (ft) = 250.62 Top Elevation (ft) = 252.27 Hw Elev (ft) = 250.72 Top Width (ft) = 8.00 Hw /D (ft) = 0.32 Crest Width (ft) = 8.00 Flow Regime = Inlet Control Mx- MWO Culvert Report Hydraflow Express by Intelisolve Thursday, Sep 19 2013 Ilc Pipe Invert Elev Dn (ft) = 228.00 Pipe Length (ft) = 20.00 Slope ( %) = 12.50 Invert Elev Up (ft) = 230.50 Rise (in) = 15.0 Shape = Cir Span (in) = 15.0 No. Barrels = 1 n -Value = 0.012 Inlet Edge = Projecting Coeff. K,M,c,Y,k = 0.0045, 2, 0.0317, 0.69, 0.5 Embankment Top Elevation (ft) = 233.00 Top Width (ft) = 8.00 Crest Width (ft) = 8.00 Elev (fl) 234.00 23300 23200 231.00 2M OO 229A0 228.00 227.00 Ilc Pipe Calculations Qmin (cfs) = 1.36 Qmax (cfs) = 1.36 Tailwater Elev (ft) = (dc +D) /2 Highlighted Qtotal (cfs) Qpipe (cfs) Qovertop (cfs) Veloc Dn (ft/s) Veloc Up (ft/s) HGL Dn (ft) HGL Up (ft) Hw Elev (ft) Hw /D (ft) Flow Regime = 1.36 = 1.36 = 0.00 = 1.52 = 3.28 = 228.86 = 230.96 = 231.13 = 0.50 = Inlet Control Hw Depth (It) 3.50 2.50 1.50 0.50 -0.50 •1.50 -2.50 •3.50 Reach (It) --- Ch culvert HGL Embank Channel Report Hydrafl= Express by Intelisolve Ditch la - Bare Soil Triangular Area (sgft) Side Slopes (z:1) = 4.00, 4.00 Total Depth (ft) = 2.00 Invert Elev (ft) = 100.00 Slope ( %) = 2.91 N Value = 0.020 Calculations Compute by: Known Q Known Q (cfs) = 0.67 Elev 103.00 102.50 102.00 101.50 101.00 100.50 100.00 99.50 Thursday, Sep 19 2013 Highlighted Depth (ft) = 0.24 Q (cfs) = 0.670 Area (sgft) = 0.23 Velocity (ft/s) = 2.91 Wetted Perim (ft) = 1.98 Crit Depth, Yc (ft) = 0.29 Top Width (ft) = 1.92 EGL (ft) = 0.37 2 4 6 8 10 12 14 16 18 20 Reach (ft) Depth (ft) 3.00 2.50 2.00 1.50 1.00 0.50 0.00 _n g;n Channel Report Hydraflow Express by Intelisolve Thursday, Sep 19 2013 Ditch la - Vegetated Triangular Highlighted Side Slopes (z:1) = 4.00, 4.00 Depth (ft) = 0.30 Total Depth (ft) = 2.00 Q (cfs) = 0.670 Area (sgft) = 0.36 Invert Elev (ft) = 100.00 Velocity (ft/s) = 1.86 Slope ( %) = 2.91 Wetted Perim (ft) = 2.47 N -Value = 0.035 Crit Depth, Yc (ft) = 0.29 Top Width (ft) = 2.40 Calculations EGL (ft) = 0.35 Compute by: Known Q Known Q (cfs) = 0.67 Elev (ft) Section 103.00 102.50 102.00 101.50 101.00 100.50 100.00 99.50 0 2 4 6 8 10 12 14 16 18 20 Reach (ft) Depth (ft) 3.00 2.50 2.00 1.50 1.00 0.50 M ■r.MMI'.i Channel Report Hydraflow Express by Intelisolve Ditch lb - Concrete Triangular = 5.350 Side Slopes (z:1) = 4.00, 4.00 Total Depth (ft) = 2.00 Invert Elev (ft) = 100.00 Slope ( %) = 13.85 N -Value = 0.013 Calculations = 2.68 Compute by: Known Q Known Q (cfs) = 5.35 Thursday, Sep 19 2013 Highlighted Depth (ft) = 0.33 Q (cfs) = 5.350 Area (sqft) = 0.44 Velocity (ft/s) = 12.28 Wetted Perim (ft) = 2.72 Crit Depth, Yc (ft) = 0.65 Top Width (ft) = 2.64 EGL (ft) = 2.68 Elev (ft) Section 103.00 102.50 102.00 101.50 101.00 100.50 100.00 99.50 2 4 6 8 10 12 14 16 18 20 Reach (ft) Depth (ft) 3.00 2.50 2.00 1.50 1.00 0.50 0.00 _n r%n Channel Report Hydraflow Express by Intellsolve Thursday, Sep 19 2013 Ditch lla - Bare Soil Triangular Highlighted Side Slopes (z:1) = 4.00, 4.00 Depth (ft) = 0.20 Total Depth (ft) = 2.00 Q (cfs) = 0.380 Area (sgft) = 0.16 Invert Elev (ft) = 100.00 Velocity (ft/s) = 2.38 Slope ( %) = 2.91 Wetted Perim (ft) = 1.65 N -Value = 0.020 Crit Depth, Yc (ft) = 0.23 Top Width (ft) = 1.60 Calculations EGL (ft) = 0.29 Compute by: Known Q Known Q (cfs) = 0.38 Elev (ft) Section 103.00 102.50 102.00 101.50 101.00 100.50 100.00 99.50 Depth (ft) 3.00 2.50 2.00 1.50 1.00 0.50 � _n sn 0 2 4 6 8 10 12 14 16 18 20 v vv Reach (ft) Channel Report Hydraflow Express by IntelisoNe Ditch Ila - Vegetated Triangular = 0.380 Side Slopes (z:1) = 4.00, 4.00 Total Depth (ft) = 2.00 Invert Elev (ft) = 100.00 Slope ( %) = 2.91 N -Value = 0.035 Calculations = 0.28 Compute by: Known Q Known Q (cfs) = 0.38 Elev 103.00 102.50 102.00 101.50 101.00 100.50 100.00 99.50 Thursday, Sep 19 2013 Highlighted Depth (ft) = 0.24 Q (cfs) = 0.380 Area (sqft) = 0.23 Velocity (fVs) = 1.65 Wetted Perim (ft) = 1.98 Crit Depth, Yc (ft) = 0.23 Top Width (ft) = 1.92 EGL (ft) = 0.28 Depth (ft) 3.00 2.50 2.00 1.50 1.00 0.50 0.00 -n rn 0 2 4 6 8 10 12 14 16 18 20 v vv Reach (ft) Channel Report Hydraflow Express by Intelisolve Thursday, Sep 19 2013 Ditch llb through lid - Concrete Triangular Highlighted Side Slopes (z:1) = 4.00, 4.00 Depth (ft) = 0.24 Total Depth (ft) = 2.00 Q (cfs) = 2.200 Area (sgft) = 0.23 Invert Elev (ft) = 100.00 Velocity (ft/s) = 9.55 Slope ( %) = 13.85 Wetted Perim (ft) = 1.98 N -Value = 0.013 Crit Depth, Yc (ft) = 0.46 Top Width (ft) = 1.92 Calculations EGL (ft) = 1.66 Compute by: Known Q Known Q (cfs) = 2.20 Elev (ft) Section 103.00 102.50 102.00 101.50 101.00 100.50 100.00 99.50 0 2 4 6 8 10 12 14 16 18 20 Reach (ft) Depth (ft) 3.00 2.50 2.00 1.50 410 0.50 we ■ AILT11 Channel Report Hydraflow Express by Intelisolve Thursday, Sep 19 2013 Ditch III - Rip Rap Triangular Highlighted Side Slopes (z:1) = 4.00, 4.00 Depth (ft) = 0.88 Total Depth (ft) = 1.00 Q (cfs) = 7.860 Area (sgft) = 3.10 Invert Elev (ft) = 100.00 Velocity (ft/s) = 2.54 Slope ( %) = 1.00 Wetted Perim (ft) = 7.26 N -Value = 0.033 Crit Depth, Yc (ft) = 0.76 Top Width (ft) = 7.04 Calculations EGL (ft) = 0.98 Compute by: Known Q Known Q (cfs) = 7.86 Elev (ft) 102.00 = 101.50 101.00 100.50 ril1� 99.50 0 1 2 3 4 Section 5 Reach (ft) 6 7 8 9 Depth (ft) 2.00 1.50 1.00 0.50 m 1 -0.50 10 Channel Report Hydraftow Express by Intelisolve Outfall Ditch - Rip Rap Triangular = 6.790 Side Slopes (z:1) = 4.00, 4.00 Total Depth (ft) = 1.00 Invert Elev (ft) = 100.00 Slope ( %) = 20.00 N -Value = 0.033 Calculations = 1.32 Compute by: Known Q Known Q (cfs) = 6.79 Elev (ft) Section 102.00 101.50 101.00 100.50 100.00 4%. 1111 Thursday, Sep 19 2013 Highlighted Depth (ft) = 0.48 Q (cfs) = 6.790 Area (sgft) = 0.92 Velocity (ft/s) = 7.37 Wetted Perim (ft) = 3.96 Crit Depth, Yc (ft) = 0.71 Top Width (ft) = 3.84 EGL (ft) = 1.32 1 2 3 4 5 6 7 8 9 10 Reach (ft) Depth (ft) 2.00 1.50 1.00 0.50 _n r%n Channel Report Hydrafim Express by intellsolve Temporary Diversion la - lb - Bare Soil Triangular = 5.350 Side Slopes (t:1) = 4.00, 4.00 Total Depth (ft) = 1.00 Invert Elev (ft) = 100.00 Slope ( %) = 13.85 N -Value = 0.020 Calculations = 1.59 Compute by: Known Q Known Q (cfs) = 5.35 Elev (ft) Section 1 02.00 101.50 101.00 10050 100.00 99.50 1 2 3 4 5 6 Reach (ft) Thursday, Sep 19 2013 Highlighted Depth (ft) = 0.39 Q (cfs) = 5.350 Area (sqft) = 0.61 Velocity (ft/s) = 8.79 Wetted Perim (ft) = 3.22 Crit Depth, Yc (ft) = 0.65 Top Width (ft) = 3.12 EGL (ft) = 1.59 Depth (ft) 2.00 1.50 m 0.50 I iY W61LIf e 7 8 9 10 - -- Channel Report Hydraflow Express by IntelisoMe Temporary Diversion la - lb - Vegetated Triangular = 5.350 Side Slopes (z:1) = 4.00, 4.00 Total Depth (ft) = 1.00 Invert Elev (ft) = 100.00 Slope ( %) = 13.85 N -Value = 0.035 Calculations = 1.00 Compute by: Known Q Known Q (cfs) = 5.35 Elev (ft) Section 102.00 101.50 101.00 100.50 100.00 99.50 Thursday, Sep 19 2013 Highlighted Depth (ft) = 0.48 Q (cfs) = 5.350 Area (sgft) = 0.92 Velocity (ft/s) = 5.81 Wetted Perim (ft) = 3.96 Crit Depth, Yc (ft) = 0.65 Top Width (ft) = 3.84 EGL (ft) = 1.00 1 2 3 4 5 6 7 8 9 10 Reach (ft) Depth (ft) 2.00 1.50 1.00 0.50 11MI -n j;n Channel Report Hydreflow Express by IntellsoW Thursday, Sep 19 2013 Temporary Diversion Ila - lid - Bare Soil Triangular Highlighted Side Slopes (z:1) = 4.00, 4.00 Depth (ft) = 0.28 Total Depth (ft) = 1.00 Q (cfs) = 2.200 Area (sgft) = 0.31 Invert Elev (ft) = 100.00 Velocity (ft/s) = 7.02 Slope ( %) = 13.85 Wetted Perim (ft) = 2.31 N -Value = 0.020 Crit Depth, Yc (ft) = 0.46 Top Width (ft) = 2.24 Calculations EGL (ft) = 1.05 Compute by: Known Q Known Q (cfs) = 2.20 Elev (ft) 102.00 --1 101.50 101.00 100.50 100.00 99.50 1 2 3 4 Section 5 Reach (ft) 6 7 8 9 Depth (ft) 2.00 1.50 M 0.50 M 1 -0.50 10 Channel Report Hydraflow Express by Intelisolve Temporary Diversion Ila - Ild - Vegetated Triangular = 2.200 Side Slopes (z:1) = 4.00, 4.00 Total Depth (ft) = 1.00 Invert Elev (ft) = 100.00 Slope ( %) = 13.85 N -Value = 0.035 Calculations 0.66 Compute by: Known Q Known Q (cfs) = 2.20 Elev (ft) Section 102.00 101.50 101.00 100.50 100.00 99.50 1 2 3 4 5 6 Reach (ft) Thursday, Sep 19 2013 Highlighted Depth (ft) = 0.35 Q (cfs) = 2.200 Area (sqft) = 0.49 Velocity (ft/s) = 4.49 Wetted Perim (ft) = 2.89 Crit Depth, Yc (ft) = 0.46 Top Width (ft) = 2.80 EGL (ft) .= 0.66 7 8 9 10 Depth (ft) 2.00 1.50 1.00 0.50 low _n r%n Channel Report Hydraflow Express by Intellsolve Thursday, Sep 19 2013 Temporary Diversion III - Bare Soil Triangular Highlighted Side Slopes (z:1) = 4.00, 4.00 Depth (ft) = 0.73 Total Depth (ft) = 1.00 Q (cfs) = 7.860 Area (sgft) = 2.13 Invert Elev (ft) = 100.00 Velocity (ft/s) = 3.69 Slope ( %) = 1.00 Wetted Perim (ft) = 6.02 N -Value = 0.020 Crit Depth, Yc (ft) = 0.76 Top Width (ft) = 5.84 Calculations EGL (ft) = 0.94 Compute by: Known Q Known Q (cfs) = 7.86 Elev (ft) 102.00 --7 101.50 iH1'MIA 100.50 100.00 99.50 1 2 3 4 Section 5 Reach (ft) 6 7 8 9 1 10 Depth (ft) 2.00 1.50 1.00 0.50 M Channel Report Hydraflow Express by Intelisolve Thursday, Sep 19 2013 Temporary Diversion III - Vegetated Triangular Highlighted Side Slopes (z:1) = 4.00, 4.00 Depth (ft) = 0.73 Total Depth (ft) = 1.00 Q (cfs) = 7.860 Area (sgft) = 2.13 Invert Elev (ft) = 100.00 Velocity (ft/s) = 3.69 Slope ( %) = 1.00 Wetted Perim (ft) = 6.02 N Value = 0.020 Chit Depth, Yc (ft) = 0.76 Top Width (ft) = 5.84 Calculations EGL (ft) = 0.94 Compute by: Known Q Known Q (cfs) = 7.86 Elev (ft) 102.00 --1 101.50 101.00 100.50 100.00 99.50 J 1 2 3 4 Section 5 Reach (ft) 6 7 8 9 Depth (ft) 2.00 1.50 1.00 0.50 01 11 1 -0.50 10 Skimmer Sediment Basin Worksheet (Drainage Area Most be Less Than 10 Acres) Area Disturbed = 0. ` 7 Acres Runoff Area = ;. Z 2) Acres Q10 = C x I x A =. 35 x 7.'f8 x 3.2-8 = 6.5-5 cfs Basin Volume Calculation: Volume of Sediment=( 7 Ac.) x (1800 cf sed. /year) x (1 year) i (o cf Assume Z foot of basin depth, therefore area of the pit $7 3 Square Feet Try ( wide) x ( long) x ( Surface Area Calculation: Surface Area (SF) = Qjo x 325 sf /cfs = P.59 x 325 sf /cfs sf foot deep) Sediment Basin Surface Area — Use ( 38 wide) x ( i5 long) x ( 2— foot deep) Sediment Basin = 2�SSd 2 -7q2- Surface Area — 6 /G Weir Desian and Velocity Check: Q10 = 8.S--5 cfs; Q = CLH32; H = [Q /CL]2'3 = [ $. S9 / (2.68)( )]2/3 = o. 3(p feet Velocity Check 4 ( -�`% )/( !S ) ( 0.3& ) = I • 5"7 _fps, OK ✓ JX/ m s 0 Skimmer Orifice ®es6e�n B — N , - it -saa, - -qt -3aa. er WOO lMw IMM 94aht weler Stwase Volume tfl'0) Figure 2. Skimmer orifice diameter as a function of the basin volume and basin dewatering time. Basin Volume (From Worksheet: Basin Dewatering Time (1 -3 Days): Skimmer Orifice Diameter (From Chart): q 0 it Form SW401 - LS-VFS - 29June2012 - Rev.10 page 1 of 3 j NCDEHR STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM LEVEL SPREADER - VEGETATED FILTER STRIP (LS -VFS) SUPPLEMENT This form must be completely filled out, printed, Initialed, and submitted. I. PROJECT INFORMATION Project name Flowers Plantation -'The Nine" Contact name Kevin Vamell Phone number 252.459.8196 Date September 17, 2013 Drainage area number I II. DESIGN INFORMATION The purpose of the LS-VFS Buffer Rule: Diffuse Flow Stormwaterenters LS-VFS from The drainage area Type of VFS Engineered filter strip (graded & sodded, slope < 8%) Explanation of any 'Other" responses above If Stommater Enters the LS-VFS from the Drainage Area Drainage area 125,888 fe Impervious surface area 28,980 fe Percent impervious 23.02 % Rational C coefficient 0.37 Peak flow from the 1 in/hr storm 1.07 cis Time of concentration 5.00 min Rainfall Intensity, 10- yrstorm 7.38 Mr Peak flow from the 10-yr storm 7.86 cis Design storm 1 inchlhourstorm Maximum amount of flow directed to the LS-VFS 1.07 cis Is a flow bypass system going to be used? Y (Y or N) Explanation of any "Other' responses above If Stormwater Enters the LS -VFS from a BMP Do not complete this section of the form. Type of BMP Pick one: Peak discharge from the BMP during the design storm CIS Peak discharge from the BMP during the 10-year storm cis Do not complete this section of the form. Maximum capacity of a 100400t long LS-VFS 10 cis Peak flow directed to the LS-VFS cis Do not complete this section of the form. Is a flow bypass system going to be used? (Y or N) Explanation of any "Other' responses above Form SW401 - LS-VFS - 29June2012 - Rev.10 page 1 of 3 LS-VFS Design Forebay surface area Depth of forebay at stommxater entry point Depth of forebay at stomtwater exit point Feet of level lip needed per cis Computed minimum length of the level lip needed Length of level lip provided Width of VFS Elevation at downslope base of level Up Elevation at the end of the VFS that Is farthest from the LS Slope (from level Up to the end of the VFS) Are any draws present to the VFS? Is there a collector swale at the end of the VFS? Bypass System Design (if applicable) Is a bypass system provided? Is there an engineered flow splitting device? Dimensions of the channel (see diagram below): M 8 W y (flow depth for 10•year storm) freeboard (during the 10 -year storm) Peak velocity In the channel during the 10-yr stone Channel lining material Does the bypass discharge through a wetland? Does the channel enter the stream at an angle? Explanation of any 'Other' responses above 80 sq ft 12 in 12 in 10 ftfcfs 11 it 15 It 30 ft 220.40 final 218.00 fmsl 8.00 % N (Y or N) N (Y or N) Forebay is adequately sized Depth is appropriate. OK Y (Y or N) Y (Y or N) Please provide plan details of flow splitter & supporting calcs. 4.00 It 0.00 ft 8.00 It 0.48 It 1.00 It 7.37 ftlsec Rip -rap N (Y or N) Y (Y or N) W _i B Form SW401- LS-VFS - 2eJune2012 - Rev. 10 page 2 of 3 III. REQUIRED ITEMS CHECKLIST EDIT Please indicate the page or plan sheet numbers where the supporting documentation can be found. M incomplete submittal package will result in a request for additional Information. This will delay final review and approval of the project. Initial in the space provided to Indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Requried Item: initials Page or sheet number and any notes: 1. Plans (1° - 5V or larger) of the entire site showing: w ;Ian C - Design at ultimate build -out, - Off -site drainage Of applicable), - Delineated drainage basins (include Rational C coefficient per basin), - Forebay (if applicable), - High flow bypass system, - Maintenance access, - Proposed drainage easement and public right of way (ROM, and - boundaries of drainage easement 2. Plan details (1* = 39 or larger) for the level spreader showing: - Forebay (id applicable), - High flow bypass system, - One foot topo lines between the level lip and top of stream bank, - Proposed drainage easement, and - Design at ultimate build-out t-3 3. Section view of the level spreader (1° = 2(y or larger) showing: - Underdrain system (if applicable), - Level lip, - Upslope channel, and - Downslope filter fabric. 4. Plan details of the flow splitting device and supporting calculations (If applicable). e.-3 5. A construction sequence that shows how the level spreader will be protected from sediment until the entire drainage area is stabilized. 6. If a non-engineered VFS Is being used, then provide a photograph of the VFS showing that no draws are present. /� 7. The supporting calculations. 3(v— `�G s 8. A copy of the signed and notarized operation and maintenance (O &M) agreement jr-V I O f IK Form SW401- LS-VFS - 29June2012 - Rev. 10 page 3 of 3 T r pp '� X � � TI X r. o N 0 N` c x P r1 c N .► 0 O W O J c�Nw N �p r n � S Permit Number. (to be provided by DWQ) Dminege Area Number. Filter Strip, Restored Riparian Buffer and Level Spreader Operation and Maintenance Agreement I will keep a maintenance record on this BMP. This maintenance record will be kept in a Iog in a known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the removal efficiency of the BMP. Important maintenance procedures: - immediately after the filter strip is established, any newly planted vegetation will be watered twice weekly if needed until the plants become established (commonly six weeks). - Once a year, the filter strip will be reseeded to maintain a dense growth of vegetation - Stable groundcover will be maintained in the drainage area to reduce the sediment load to the vegetation. - Two to three times a year, grass filter strips will be mowed and the clippings harvested to promote the growth of thick vegetation with optimum pollutant removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and may be allowed to grow as tall as 12 inches depending on aesthetic requirements WIPC,1993). Forested filter strips do not require this type of maintenance. - Once a year, the soil will be aerated if necessary. - Once a year, soil pH will be tested and lime will be added if necessary. After the filter strip is established, it will be inspected quarterly and within 24 hours after every storm event greater than 1.0 inch (or 15 inches if in a Coastal County). Records of operation and maintenance will be kept in a known set location and will be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: Potential problenc How I will remediate the roblem: The entire filter strip Trash/ debris is present. Remove the trash /debris. stem The flow sputter device The flow splitter device is Unclog the conveyance and dispose (if applicable) dogged. of any sediment off -site. The flow sputter device is Make any necessary repairs or damaged. replace if damage is too large for air. Form SWU401 -Level Spreader, Filter Strip, Restored Riparian Buffer O&M -Rev.3 Page 1 of 3 BMF element: Potential blew How I will remediate the roblem; The swale and the level UP The swale is clogged with sediment Remove the sediment and dispose of it off -site. The level Hp is cracked, Repair or replace lip. settled, undercut, eroded or otherwise There is erosion around the Regrade the soil to create a berm end of the level spreader that that is higher than the level lip, and shows stormwater has then plant a ground cover and bypassed it water until it is established. Provide Hine and a one -time fertilizer a pp1hUcation. Trees or shrubs have begun Remove them. to grow on the swale or just downslo a of the level lip. The bypass channel Areas of bare soil and /or Regrade the soil if necessary to erosive gullies have formed. remove the gully, and then reestablish proper erosion control. Turf reinforcement is Study the site to see if a larger damaged or ripap is rolling bypass channel is needed (enlarge if downhill. necessary). After this, reestablish the erosion control material. The filter strip Grass is too short or too long Maintain grass at a height of if applicable). a roximatel three to six inches. Areas of bare soil and /or Regmde the soil if necessary to erosive gullies have formed. remove the gully, and then plant a ground cover and water until it is established. Provide lime and a one -time fertilizer application. Sediment is building up on Remove the sediment and the filter strip. restabilize the soil with vegetation ff necessary. Provide lime and a one- time fertilizer application. Plants are desiccated. Provide additional irrigation and fertilizer as needed. Plants are dead diseased or Determine the source of the dying. problem soils, hydrology, disease, etc. Remedy the problem and replace plants. provide a one -time fertilizer application. Nuisance vegetation is Remove vegetation by hand if choking out desirable species. possible. If pesticide is used, do not allow it to get into the receiving water. The receiving water Erosion or other signs of Contact the NC Division of Water damage have occurred at the Quality local Regional Office, or the outlet 1401 Oversight Unit at 919- 733.1786. Form SWU401- level Spreader, Filter Strip, Restored Riparian Buii'er O&M -Rev.3 Page 2 Of 3 Permit Number: #o•be provided by DW0 I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance.procedwres listed,above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name:Flowera Plantation : "The .Nine" BAP drainage area nwnber:NA Print name:Rebecca Flowers Title:Owner Address:4880 NC 42 E. Clayton. NC 27520 Date: _f 0 Note: The legally responsible pirly should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president a Notary Public for the State of ty o .do hereby certify that Uq . -��► Personally appeared before me this p�Q and acknowledge the due execution of the forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements. Witness my hand and official seal, Ann M. Flowers Notary Publlo Johnston Caourdy, NO M C0MMIUIaf► IMG "y ` My commission expires ZZ -1!4-- a'Dl Form SWU401 -Level Spreader, Fiber Strip, Restored Riparian Buffer O&M-Rev-3 Page 3 Of 3