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HomeMy WebLinkAboutSW8080110_HISTORICAL FILE_20080111STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO SW8 080\ \ o DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE 2pOX 0 \ 1 YYYYMMDD W ATFR 0 � — .0 January 11, 2008 Virginia Eitner, Member Manager Morehead Enterprises, LLC PO Box 3320 New Bern, NC 28564 Subject Stormwater Permit No SW8 080110 Morehead Enterprises High Density Project Carteret County Dear Mrs Eltner Michael Faslry Gotcrnor William G Ross Jr Secretan North Carolina Department of rnvuonment and Natural Resources Coleen IF Sullins Director Dn ision of Water Qua] t} The Wilmington Regional Office received a complete Stormwater Management Permit Application for the modification of Morehead Enterprises on January 8, 2008 Staff review of the plans and specifications has determined that the protect, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H 1000 and Session Law 2006-246 We are forwarding Permit No SW8 080110 dated January 11, 2008, for the construction of the subject protect This permit shall be effective from the date of issuance until January 11, 2018, and shall be subject to the conditions and limitations as specified therein Please pay special attention to the Operation and Maintenance requirements in this permit Failure to establish an adequate system for operation and maintenance of the stormwater management system will result in future compliance problems If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adtudicatory hearing upon written request within sixty (60) days following receipt of this permit This request must be in the form of a written petition, conforming to Chapter 150E of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, P O Drawer 27447, Raleigh, NC 27611-7447 Unless such demands are made this permit shall be final and binding If you have any questions, or need additional contact Chris Baker, or me at (910) 796-7215 Si rely, Edward Beck Regional Supervisor Surface Water Protection Section information concerning this matter, please ENB/csb S \WQS\STORMWATER\PERMIT\080110 dec08 cc Ronald D Cullipher, PE, Stroud Engineering Carteret County Building Inspections Chris Baker Wilmington Regional Office Central Files North Carolina Division of Water Quality 127 Cardinal Drive Extension Wilmington NC 28405 Phone (910) 796 721 Wilmington Regional Office Internet ov,,o nc11 wtuquahh or Fax (910) 350 2004 No �hCarolina Jl�nturally Customer Sen ice 1 877 623 6748 An Equal OpportumtylAffrmative Action Employer — 50 % Recycled/10% Post Consumer Paper State Stormwater Management Systems Permit No SW8 080110 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY DEVELOPMENT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO Virginia Eitner and Morehead Enterprises, LLC Morehead Enterprises 5208 Highway 70, Carteret County 11i7Ci::l:11 construction, operation and maintenance of a wet detention pond in compliance with the provisions of 15A NCAC 2H 1000 (hereafter referred to as the "stormwater rules') and the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of this permit This permit shall be effective from the date of issuance until January 11, 2018, and shall be subject to the following specified conditions and limitations I DESIGN STANDARDS 1 This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data 2 This stormwater system has been approved for the management of stormwater runoff as described in Section 16 on page 3 of this permit The stormwater control has been designed to handle the runoff from 32,391 square feet of impervious area 3 The tract will be limited to the amount of built -upon area indicated on page 3 of this permit, and per approved plans 4 All stormwater collection and treatment systems must be located in either dedicated common areas or recorded easements The final plats for the protect will be recorded showing all such required easements, in accordance with the approved plans 5 The runoff from all built -upon area within the permitted drainage area of this protect must be directed into the permitted stormwater control system Page 2 of 7 State Stormwater Management Systems Permit No SW8 080110 6 The following design criteria have been provided in the wet detention pond and must be maintained at design condition a Drainage Area, Acres 1 28 Onsite, ft 55,944 Offsite, ftz None b Total Impervious Surfaces, ftz 32,391 c Design Storm, inches 1 d Pond Depth, feet 55 e TSS removal efficiency 90 f Permanent Pool Elevation, FMSL 1040 g Permanent Pool Surface Area, ftz 3,800 h Permitted Storage Volume, ft3 2,667 1 Temporary Storage Elevation, FMSL 1081 I Controlling Orifice 1"0 pipe k Permitted Forebay Volume, ft3 3,022 1 Fountain Horsepower, HP 1/8 m Receiving Stream/River Basin UT to Newport River / White Oak n Stream Index Number 21-(1) o Classification of Water Body "C" II SCHEDULE OF COMPLIANCE 1 The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use prior to the construction of any built -upon surface 2 During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately 3 The permittee shall at all time provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to a Semiannual scheduled inspections (every 6 months) b Sediment removal c Mowing and re -vegetation of slopes and the vegetated filter d Immediate repair of eroded areas e Maintenance of all slopes in accordance with approved plans and specifications f Debris removal and unclogging of outlet structure, orifice device, flow spreader, catch basins and piping g Access to the outlet structure must be available at all times Page 3 of 7 State Stormwater Management Systems Permit No SW8 080110 4 Records of maintenance activities must be kept and made available upon request to authorized personnel of DWQ The records will indicate the date, activity, name of person performing the work and what actions were taken Decorative spray fountains will be allowed in the stormwater treatment system, subject to the following criteria a The fountain must draw its water from less than 2' below the permanent pool surface b Separated units, where the nozzle, pump and intake are connected by tubing, may be used only if they draw water from the surface in the deepest part of the pond c The falling water from the fountain must be centered in the pond, away from the shoreline d The maximum horsepower for a fountain in this pond is 1/8 horsepower The facilities shall be constructed as shown on the approved plans This permit shall become void unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation Any deviations from the approved plans and specifications must be noted on the Certification A modification may be required for those deviations 8 If the stormwater system was used as an Erosion Control device, it must be restored to design condition prior to operation as a stormwater treatment device, and prior to occupancy of the facility 9 Access to the stormwater facilities shall be maintained via appropriate easements at all times 10 The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any modification to the approved plans, including, but not limited to, those listed below a Any revision to any item shown on the approved plans, including the stormwater management measures, built -upon area, details, etc b Protect name change c Transfer of ownership d Redesign or addition to the approved amount of built -upon area or to the drainage area e Further subdivision, acquisition, lease or sale of all or part of the project area The protect area is defined as all property owned by the permittee, for which Sedimentation and Erosion Control Plan approval or a CAMA Major permit was sought f Filling in, altering, or piping of any vegetative conveyance shown on the approved plan 11 The permittee shall submit final site layout and grading plans for any permitted future areas shown on the approved plans, prior to construction 12 A copy of the approved plans and specifications shall be maintained on file by the Permittee for a minimum of ten years from the date of the completion of construction Page 4 of 7 State Stormwater Management Systems Permit No SW8 080110 13 The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made III GENERAL CONDITIONS This permit is not transferable except after notice to and approval by the Director In the event of a change of ownership, or a name change, the permittee must submit a formal permit transfer request to the Division of Water Quality, accompanied by a completed name/ownership change form, documentation from the parties involved, and other supporting materials as may be appropriate The approval of this request will be considered on its merits and may or may not be approved The permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request 2 Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute 143-215 6A to 143-215 6C 3 The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances, which may be imposed by other government agencies (local, state, and federal) having jurisdiction 4 In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems 5 The permittee grants DENR Staff permission to enter the property during normal business hours for the purpose of inspecting all components of the permitted stormwater management facility 6 The permit may be modified, revoked and reissued or terminated for cause The filing of a request for a permit modification, revocation and re -issuance or termination does not stay any permit condition 7 Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual 8 Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit 9 The permittee shall notify the Division any name, ownership or mailing address changes within 30 days Permit issued this the 11th day of January, 2008 NORT AROLINA ENVIRONMENTAL MANAGEMENT COMMISSION for Cc een H Sullins, Director Division of Water Quality By Authority of the Environmental Management Commission Page 5 of 7 State Stormwater Management Systems Permit No SW8 080110 Morehead Enterprises Stormwater Permit No SW8 080110 Carteret County Designer's Certification I, , as a duly registered in the State of North Carolina, having been authorized to observe (periodically/ weekly/ full time) the construction of the protect, (Protect) for (Protect Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the protect construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications The checklist of items on page 2 of this form is included in the Certification Noted deviations from approved plans and specification Signature Registration Number Date SEAL Page 6 of 7 State Stormwater Management Systems Permit No SW8 080110 Certification Requirements 1 The drainage area to the system contains approximately the permitted acreage 2 The drainage area to the system contains no more than the permitted amount of built -upon area 3 All the built -upon area associated with the protect is graded such that the runoff drains to the system 4 All roof drains are located such that the runoff is directed into the system 5 The outlet/bypass structure elevations are per the approved plan 6 The outlet structure is located per the approved plans 7 Trash rack is provided on the outlet/bypass structure 8 All slopes are grassed with permanent vegetation 9 Vegetated slopes are no steeper than 3 1 10 The inlets are located per the approved plans and do not cause short- circuiting of the system 11 The permitted amounts of surface area and/or volume have been provided 12 Required drawdown devices are correctly sized per the approved plans 13 All required design depths are provided 14 All required parts of the system are provided, such as a vegetated shelf, and a forebay 15 The required system dimensions are provided per the approved plans cc NCDENR-DWQ Regional Office Carteret County Building Inspections Page 7 of 7 DWQ USE ONLY Received Fee Paid Permit Number ► 1 5Date 1 U N 130— q c 1(..-)G 6,)\,°o go I (0 State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM Tlus farm may be photocopied for use as an ongnial I GENERAL INFORMATION 1 Applicants name (specify the name of the corporation, individual, etc who owns the project) Morehead Enterprises, LLC 2 Print Owner/Signing Official's name and title (person legally responsible for facibty and compliance) Virginia Eitner, member managere 3 Mailing Address for person listed in item 2 above City New Bern State NC Zip 28564 Phone (252 ) 671-1771 Fax (252 ) 637-5576 Email veitner@suddenlmk net 4 Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans, specifications, letters, operation and mamtenance agreements, etc) Morehead Enterprises, LLC- Highway 70 Morehead City 5 Location of Project (street address) City Morehead City County 6 Directions to project (from nearest major intersection) from the intersection of US Hwy 70 and NC Hwy 24 in Morehead City, head west on US Hwy 70 Site is on the left approximately one mile 7 Lahtude N 34-44-22 Longitude W 76-48-39 of project 8 Contact person who can answer questions about the project Name RONALD D CULLIPHER, PE Telephone Number (252 ) 247-7479 Email rcullipherQstroudengmeer corn II PERMIT INFORMATION Form SWU-101 Version 8 07 Page I of 1 Specify whether project is (check one) ®New ❑Renewal [:]Modification 2 If this application is being submitted as the result of a renewal or modification to an existing permit, list the existing permit number na and its issue date (if known) 3 Specify the type of project (check one) ❑Low Density ®High Density []Redevelop ❑General Permit ❑Universal SMP []Other 4 Additional Project Requirements (check applicable blanks) ❑CAMA Major ®Sedimentation/Erosion Control 0404/401 Permit ❑NPDES Stormwater Information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748 III PROJECT INFORMATION 1 In the space provided below, summarize how stormwater will be treated Also attach a detailed narrative (one to two pages) describing stormwater management for the project wet -detention pond with forebay sized for 90% tss removal 2 Stormwater runoff from this project drains to the WHITE OAK River basin 3 Total Site Area 128 acres 4 Total Wetlands Area 0 acres 5 100' Wide Strip of Wetland Area NA acres (not applicable if no wetlands exist on site) 6 Total Project Area** 128 acres 7 Project Built Upon Area 57 89 % 8 How many drainage areas does the project have7l 9 Complete the following information for each drainage area If there are more than two drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below Basin Information Drainage Area 1 Drainage Area 2 Receiving Stream Name UNNAMED TO NEWPORT Stream Class & Index No "C" 21-(1) Drainage Area (so 55944 SF Existing Impervious* Area (so TO BE REMOVED Proposed Impervious*Area (so 32391 SF % Impervious* Area (total) 57 89 % Impervious* Surface Area Drainage Area 1 Drainage Area 2 On -site Buildings (so 9050 SF On -site Streets (so NA On -site Parking (so 22126 SF On -site Sidewalks (so 1215 SF Other on -site (so 0 Off -site (so 0 Total (sf) 32391 SF * Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas, sidewalks, gravel areas, etc Form SWU-101 Version 8 07 Page 2 of **Total project area shall be calculated based on the current policy regarding inclusion of wetlands ni the built upon area percentage calculation 10 How was the off -site impervious area listed above IV DEED RESTRICTIONS AND PROTECTIVE COVENANTS One of the following deed restrictions and protective covenants are required to be recorded for all subdivisions, outparcels and future development prior to the sale of any lot If lot sizes vary significantly, a table listing each lot number, size and the allowable built -upon area for each lot must be provided as an attachment Form DRPC-1 High Density Commercial Subdivisions Form DRPC-2 High Density Developments with Outparcels Form DRPC-3 High Density Residential Subdivisions Form DRPC-4 Low Density Commercial Subdivisions Form DRPC-5 Low Density Residential Subdivisions Form DRPC-6 Low Density Residential Subdivisions with Curb Outlets By your signature below, you certify that the recorded deed restrictions and protective covenants for this project shall include all the applicable items required in the above form, that the covenants will be binding on all parties and persons claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted without concurrence from the State, and that they will be recorded prior to the sale of any lot V SUPPLEMENT FORMS The applicable state stormwater management permit supplement form(s) listed below must be submitted for each BMP specified for this project Contact the Stormwater and General Permits Unit at (919) 733-5083 for the status and availability of these forms Form SW401-Low Density Form SW401-Curb Outlet System Form SW401-Off-Site System Form SW401-Wet Detention Basin Form SW401-Infiltration Basin Form SW401-Infiltration Trench Form SW401-Bioretention Cell Form SW401-Level Spreader Form SW401-Wetland Form SW401-Grassed Swale Form SW401-Sand Filter Low Density Supplement Curb Outlet System Supplement Off -Site System Supplement Wet Detention Basin Supplement Infiltration Basin Supplement Underground Infiltration Trench Supplement Bioretention Cell Supplement Level Spreader/Filter Strip/Restored Riparian Buffer Supplement Constructed Wetland Supplement Grassed Swale Supplement Sand Filter Supplement Form SWU-101 Version 8 07 Page 3 of VI SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ) A complete package includes all of the items listed below The complete application package should be submitted to the appropriate DWQ Office (Appropriate office maybe found by locating project on the interactive online map at Imi) //h2o enr state nc us/su/msi maps him) Please indicate that you have provided the following required information by initialing in the space provided next to each item • Oi iginal and one copy of the Stormwater Management Permit Application Form • Original and one copy of the Deed Restrictions & Protective Covenants Form • Original of the applicable Supplement Form(s) and O&M agreement(s) for each BMP • Permit application processing fee of $505 ($4,000 for Express) payable to NCDENR • Calculations & detailed narrative description of stormwater treatment/management • Copy of any applicable soil report • Three copies of plans and specifications (sealed, signed & dated), including - Development/Project name - Engineer and firm -Legend - North arrow - Scale - Revision number & date - Mean high water line - Dimensioned property/project boundary - Location map with named streets or NCSR numbers - Original contours, proposed contours, spot elevations, finished floor elevations - Details of roads, drainage features, collection systems, and stormwater control measures - Wetlands delineated, or a note on plans that none exist - Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations - Drainage areas delineated - Vegetated buffers (where required) VII AGENT AUTHORIZATION If you wish to designate authority to another individual or firm so that they may provide information on your behalf, please complete this section Designated agent (individual or firm) Stroud Engineering, PA Marling Address 151 A HWY 24 City MOREHEAD CITY State NC Zip 28557 Phone (252 ) 247-7479 Fax (252 ) 247-4098 Email rcullipher@stroudengineer com VIII APPLICANT'S CERTIFICATION I, (print or hype name of person listed in General Information, item 2) Virgina Ertner certify that the information included on this permit application form is, to the best of my knowledge, correct and that the project will be constructed in conformance with the approved plans, that the required deed restrictions and protective coverjants will be rec9rdec rid that the proposed project complies with the requirements of 15A NCAC 2H 1000 1 11 ( X Form SWU-101 Version 8 07 Page 4 of State Stormwater Permit Application Trackinz Cover Sheet Wilmington Revonal Office Project Name MOREHEAD ENTERPRISES LLC PROPERTY Project Category NEW Project Type HD - DETENTION POND App Accept Date Application Fee Amt S A/af Fee Check Number //�b Reviewer Name BAKER, CHRIS Record the following information from BIMS after project has been entered' Permit Number (B/MS) ��d�n�>, //0 Please update the SW Access System by entering the Permit Number for the proiectt Date Entered in Access 6/ i O R, C Entered in Access By �g,I�� Date Primed 11812008 2 57 J5 PM STORMWATER DRAINAGE CALCULATIONS FOR MOREHEAD ENTERPRISES, LLC HIGHWAY 70 MOREHEAD CITY MOREHEAD CITY, NORTH CAROLINA PREPARED FOR MOREHEAD ENTERPRISES, LLC C/O VIRGINIA EITNER PO BOX 3320 NEW BERN, NC 28562 STROUD ENGINEERING, P A. HESTRON PLAZA TWO 151-A HWY. 24 MOREHEAD CITY, NC 28557 D�1®er, P EE D t�`Y,'�I�IfCt11 Narrative A Description of Project I T)pe of Development This project consists of the demolition of existing buildings and infrastructure onsile and propose to redevelop with a strip shopping center 2 Earth Disturbing Activities a Demolition of onsne facilities b Excavation and fill for building foundation and floor slab c Grading associated with driveway and parking lot construction d Excavation and backfill for site utilities e Excavation and backfill for installation of site drainage and excavation of the proposed stormwater pond 3 Sal types According to the Carteret County Sod Survey the sods are classified as Leon sand 4 Drainage The 128 acre site presently drams by surface runoff to ditches that ultimately drams to the north along the west line of the property This ditch run generally in a northerly direction until reaching the Newport River Class SC B Erosion and Sedimentation Control Measures The following measures are proposed for the site If it becomes evident that additional erosion and sedimentation control measures are needed they shall be installed immediately It is intended that all grading and excavation activities wuhm a certain area will be protected as soon as that activity is complete 1 Sediment Fence Sediment fence will be utilized as necessary in locations as shown on plans or as deemed necessary by the engineer to insure that off -site sedimentation in controlled 2 Sediment Basins The detention pond to be constructed at the rear of the property will serve as a sediment basin during construction Once construction is completed basin shall be cleaned to the original design depth 3 Riprap outlet protection- Riprap to be installed at locations shown on plans to reduce energy at high velocity areas 4 Seeding - All disturbed areas will be seeded within 14 days following construction in accordance with the seeding schedule shown on plans 5 Drop Inlet Protection - Inlet protection, silt fence around inlets, will be used to reduce the amount of sediment entering the storm drainage piping system during construction C Time Sequence of Operations Construct temporary stone construction entrances as indicated on the drawing Locate all existing utilities within the property and right of way of US Hwy 70 and Industrial Drive Remove existing building and parking lot Install silt fence where indicated on the drawing within phase Initiate fill/grading activities Rough grade drives and parking areas and prepare building site Seed and mulch all areas of disturbance not to be paved within 14 days of land disturbance Excavate, rough grade and seed stormwater detention pond Install water and sewer services, storm drainage and any other utilities Initiate budding construction bme grade drives and parking area Install curb and gutter, abc stone and pave Remove any accumulated sediment from the stormwater detention pond Provide final landscaping for entire site D Design Assumptions Design storm is ten years The rational method was used for design E Wet Detention Basin Operation and Maintenance See attached Operation and Maintenance Agreement F Coastal Stormwater Regulations The North Carolina Division of Environmental Management implemented coastal stormwater regulations in coastal counties on January I, 1988 These regulations are detailed in 15 NCAC 211 1000 Stoimwater Runoff Disposal These rules allow for a development to be considered under various options This project is submitted for approval consideration under Section 1003(d)(2) STROUD ENGINEERING, P A Hestron Plaza Two 151 A Hwy 24 MOREHEAD CITY, NC 28557 (252) 247-7479 aoeJU(ZEHER& EtNTERIZISES reoat��,(1F1I9sc SHEET NO 1_�LOF CALCULATED DATE Q, CHECKED B DATE �+ .%%%i��i� r+ rrrr4. SCALE _\, 0IKOi �I �S- E_i__ -fQ�e. — -- �ioe!--- �! -3 I i�j I i I I I I i I I I t, E 3' I 30' ! ncrs I `-- ! -- -- -! - - I - - - - -- l1v !�IIARu I -- -- ' _S i I __ -- -- _ -I I - I -1- - I SZ _ D - - - I---- F cFS FS -_ �_ -- -- E - �- - Skp�l — - - - - - —' 4C - - I - -- -- - i - —� - ---- -- -- - t I -- - 4 _4 ! - - -- — --- --- !---I--- - _ _ -' tE- ---1--__i -- STROUD ENGINEERING, P A Hestron Plaza Two 151 A Hwy 24 MOREHEAD CITY, NC 28557 (252)247-7479 J0 Moeerlt�o �treeperscs �roPec�u(p n5a) SHEET NO _- OF CALCULATED B DATE pp CHECKED BY DATE �b scALE ,•Nut rry�Sry�--- .• _ cr% � I T--i S.— I -_T__ I ___ �t , .... .. DIC oil a S�ZE T= 1 D xi'1 li E I' C E- t I _ i i 3'221 p 5 - — = c i- =- — - -LET f x_Z a- o -All 1DI cF -I �0 >�) - �-� Z 0_ -- _ -I--T I less ! -_-1 — _ p- - --LB-- (rr -- 21�_ - C ___ P --�-- - I -'- I —a ---�- I - - - - - -- --- - - - - -�-- ! I --- I8-72 5t+ 0 9 DRAINAGE &SEWERAGE -HYDRAULIC COMPUTATIONS-/- 1000 900 Soo 700 Soo 500 400 300 200 100 90 N 80 70 W 60 U SO 40 Z_ 30 50 3 Example - Given discharge Q= 4 a c f s friction {actor n= 0 015 ,510pe of 0.0060 fper foot Find diameter /5 inches and ve /o ci ty of 3 5 ff per second, by fol/oriiny dashed /ine 120 108 96 90 84 78 N 72 W 66 u 60 Z 54 48 Z 42 39 36 Z 33 Q 30 T. 27 u- 21 O t6 - 6 J 0003 0004 Ln 0006 p 0008 O 0010 LO 00 0030 UL 0040 W (L -- - o 0200 0300 0400 0600 0800 1000 ... 0002 0003 0004 0006 0008 r1 0010 O O / II 0020/ 0O 0�0030 9g40 LL 1.1 0080 a 0100 OJ V) 0300 0400 0600 0600 1000 2 0 z 0 u W 0 UP Z Y H 6 U 0 J .7 W 9 10 1 12 -13 14 -15 z NOMOGRAPH FOR COMPUTING REQUIRED SIZE OF U CIRCLAR DRAIN FLOWING FULL n=0.013 OR 0.015 09 08 Ad a pfc d from Engineering Monuol , WoraDe porfi Corps �95f ngineer Sfl 5 o- 9 Morehead Enterprises LLC Property Stormwater Detention Pond Design 1/8/2008 DRAINAGE AREA = 55 944 SF DRAINAGE TO SC WATERS = 1 INCH PROPOSED IMPERVIOUS AREA BUILDINGS= 9050 SF PARKING/DRIVES = 22126 SF SIDEWALK = 1 215 SF TOTAL - 32 391 SF QC II (oe, IVA �epawrbpq . pP .....:,. 9� •., 1 ^'3*_ let, ..... U �N`e NEWPORT RIVER -CLASS SC % IMPERVIOUS = 57 90% 58 00% (USE FOR DESIGN) USE A 3 MINIMUM DEPTH POND WITH 90% TSS REMOVAL (SEE SA/DA CHART) SA/DA = 6 70% MIN REQ D SA @ PERMANENT 3748 SF SAREDD = (SA/DA)(DRAINAGE AREA) POOL= SA PROVIDED = 4810 SF MIN REQ D STORAGE VOLUME Rv = 0 05 + 0 009(%IMP)= 057 VOLUME RED D= 2667 CF VOLREDD=(1/12')(Rv)(DRAINAGE AREA) VOLUME PROVIDED = 3218 CF POOL @ 10 90 2 5 DAY ORIFICE SIZING REQ D VOLUME TO STORE = 2667 PERMANENT POOL EL = 1040 CALCULATED 1 STORAGE EL = 1081 ELEVATION HEAD (H.) = 0 137 FEET (BASED ON 113 PER BMP MANUAL) QZ (2 DAY FLOWRATE) _ Qs (5-DAY FLOWRATE) _ A=Q/(Ce(29Ho)'rz USE 1 DIAMETER ORIFICE 0 015 CFS 0 006 CFS AZ DAY = 0 009 FT 1 25 IN 2 DIAMETER= 126 IN A5 DAY = 0 003 FT 0 50 IN 2 DIAMETER = 0 80 IN AREA 1 ' _ Q (1 FLOWRATE) _ 0 79 IN 0 0097 CFS TIME = 318 DAYS 0 0055 FT S44 (P n P 9 MOREHEAD ENTERPRISES,LLC Pond Volumes 118/2008 Elevation Section SA SF Avg SA Ht (FT) 1040 Permanent pool 1551 1436 050 990 Contour 1320 1116 100 P71 890 Contour 912 744 100 790 Contour 576444 100 690 Forebay Bottom 312 Total Vol 3022 Q. 7 9 9rt CU Elevation Section SA SF Avg SA Ht. FT Vol CF 10 90&W XPM ; To of Shelf QAor r_4qj5250%0 Za.,=4525"b„�tt ' A 50M ,:ZZ2263 1040 Permanent pool 3800 Not included iri mainFbasmvolume 3175 050 1588 990 Bottom of Shelf 2550 2550 100 2550 890 Contour 2550 2550 100 2550 790 Contour 2550 2550 100 2550 690 Contour 2550 2550 1 100 2550 590 Contour 2550 2550 100 2550 490 Main Basin Bottom 2550 Surface Area 2654 Total Vol — Pond Construction Volume = Forebay % of Permanent Pool Volume = Average Depth = Volume at Top of Shelf = Volume at Bottom of Shelf = 17359 CF 21 08% (Main Basin + Forebay) 377 Calculated from Permanent Pool of Main Pond 16600 CF 12750 CF � n ( OF `) r r rrn 1 , Fstoragevolume required 2667 CF �ST__ORAGE,VOLUMEPROVIDEOW,1. �' ,,, „�."�..wa- e ?. -x:. `yak f�...'=_e .'Tx"�vz; 2Fn��,.. �. �__ 3 •7k C r Elevation Section SA SF Avg SA Ht FT Vol CF'. 10 1040 Permanent pool 4810 6436 050 3218 1090 Top of Shelf 6550 7306 100 7306 11 90 Contour 8062 8882 100 8882 1290 Contour 9702 0 Total Vol 19 006 DISTURBED AREA= 1 ACRES SEDIMENT RATE = 1800 CF/ACRE REQUIRED STORAGE VOL = 2304 CF FOREBAY VOLUME = 3022 CF "USE FOREBAY OF WETPOND AS SEDIMENT POND DURING CONSTRUCTION AND CLEAN TO DESIGN STANDARDS ONCE DRAINAGE AREA IS STABILIZED � ` q," p r n t `0 ,,,�� SH8 of NCDENR Stormwater BMP Manual Chapter Revised 09-28-07 Table 10-4 Surface Area to Drainage Area Ratio for Permanent Pool Sizmg to Achieve 90 Percent TSS Pollutant Removal Efficiency in the Coastal Region, Adapted from Driscoll,1986 Percent Permanent Pool Average Depth (ft) Impervious Cover 30 35 40 45 50 55 60 65 70 75' 10% 13 10 08 07 06 05 04 03 02 01 20% 24 20 18 17 15 14 12 10 09 06 30% 35 30 27 25 22 19 16 13 11 08 40% 45 40 35 31 28 25 21 18 14 11 50% 56 50 43 39 35 31 27 23 19 15 60% 70 60 53 48 43 39 34 29 24 19 70% 81 70 60 55 50 45 39 34 29 23 80% 94 80 70 64 57 52 46 40 34 28 90% 107 90 79 72 65 59 52 46 39 33 1000/. 12 100 88 81 73 66 58 51 43 36 The engineering design of a wet detention basin must include a 10-foot-wide (minimum) vegetated shelf around the full perimeter of the basin The inside edge of the shelf shall be no deeper than 6" below the permanent pool level, and the outside edge shall be 6" above the permanent pool level For a 10' wide shelf, the resulting slope is 101 With half the required shelf below the water (maximum depth of 6 inches), and half the required shelf above the water, the vegetated shelf will provide a location for a diverse population of emergent wetland vegetation that enhances biological pollutant removal, provides a habitat for wildlife, protects the shoreline from erosion, and improves sediment trap efficiency A 10 wide shelf also provides a safety feature prior to the deeper permanent pool Short-circuiting of the stormwater must be prevented The most direct way of minimizing short-circuiting is to maximize the length of the flow path between the inlet and the outlet basms with long and narrow shapes can maximize the length of the flow path Long and narrow but irregularly shaped wet detention basins may appear more natural and therefore may have increased aesthetic value If local site conditions prohibit a relatively long, narrow facility, baffles may be placed in the wet detention basin to lengthen the stormwater flow path as much as possible Baffles must extend to the temporary pool elevation or higher A minimum length -to -width ratio of 1 51 is required, but a flow path of at least 3 1 is recommended Basin shape should minimize dead storage areas, and where possible the width should expand as it approaches the outlet Although larger wet detention basins typically remove more pollutants, a threshold size seems to exist above which further improvement of water quality by sedimentation is negligible The water treatment volume within a wet detention basin is calculated as the total volume beneath the permanent pool water level, and above the sediment storage volume, including any such volume within the forebay Wet Detention Basin 1010 July 2007 EXAMPLE AVERAGE HEAD I DRAWDOWN CALCULATION Q ` (with outlet set above the calculated Temp Pool Elevation) O Given Required volume to store = 25 000 cubic feet Permanent Pool Elevation = 10 0 Calculated minimum 1" storage elevation = 11 35 Outlet weir set at elevation 13 0 (Temporary Pool Elevation) V? Average Head = s/2 (13-10) = 1 5 (Approximate) 02 (2 day flowrate) = 25000 1172800 = 145 cfs Q, (5 day flowrate) = 25000 / 432000 = 058 cfs Rearrange the orifice equation and solve for Area A = Q I (Cd (2gh)05) where A is the orifice area in square feet Q is the 2 and 5 day flowrates cfs Cdis06 g = 32 2 fVs2 And h = average head feet A, for the 2 day flowrate = 145 / ( 6 (2132 2'1 5)D5) = 0246 fl' A for the 5 day flowrate = 058 / ( 6 (2`32 2'1 5)p5) = 0098 ft' 0246 x 144 = 3 542 square inches 0098 x 144 = 1 411 square inches Solving for the radius R and diameter D A=TrxR2 R=(A/T005 R, = (3 542 / Tr)" 5 = 1 062 inches D2 = 2R2 = 2 12 inches R, _ 0 411 / Tr)° 5 = 0 67 inches D, = 2Rti = 1 34 inches T.PE = 1.3. o EXAMPLE AVERAGE HEAD / DRAWDOWN CALCULATION (with outlet set at the calculated Temp Pool Elevation) Given Required volume to store = 25,000 cubic feet Permanent pool Elevation = 10 0 Calculated minimum 1' storage elevation = 11 35 Outlet weir set at elevation 11 35 (Temporary Pool Elevation) Average Head = %2(11 35-10) = 675 (Approximate) Q2 (2 day flowrate) = 25000 1172800 = 145 cfs Q5 (5 day flowrate) = 25000 1432000 = 058 cfs Rearrange the orifice equation and solve for Area A = Q I (Cd (2ghf) where A is the orifice area in square feet Q is the 2 and 5 day flowrates, cfs Cdts06 g=322ft/s And h = average head feet A, for the 2 day flowrate = 145 / ( 6 (2'32 2` 675)0') = 0367 ft' A5 for the 5 day flowrate = 058 / ( 6 (2`32 2" 675V 5) = 0147 ft2 0367 x 144 = 5 285 square inches 0147 x 144 = 2 117 square inches Solving for the radius, R and diameter D A=TrxR' R=(A/Tr)05 R2 = (5 285 / Tr)° " = 1 297 inches Dz = 2R, = 2 59 inches R5 = (2 117 1 Tr)'s = 0 821 inches D5 = 21R5 = 1 64 inches E.=11.3 ;E,- 10.0 Page 1 of 2 matt montanye From Sugg, Mickey T SAW [Mickey T Sugg@saw02 usace army mil] Sent Tuesday, November 13, 2007 10 07 AM To Whit@BeaufortRealtyNC com Cc veitner@suddenlink net, matt montanye, fredmortoncommercial@embargmail com, rculliipher@stroudengineer com Subject RE Written waiver of jurisdictional wetlands To all - The US Army Corps of Engineers does not have any jurisdictional authority within the ditch along the property line between Pier I and the car wash on the north side of US Hwy 70 in Morehead City Therefore no authorization is required from our office to undertake any activity within this subject ditch This does not alleviate your responsibility of obtaining any other federal, state, or local government authorizations If you have questions, please do not hesitate to contact me at (910) 251-4811 Mickey Sugg Project Manager US Army Corps of Engineers PO Box 1890 Wilmington, NC 28402-1890 From Whit Procter [mailto Whit@BeaufortRealtyNC com] Sent Thursday, November 08, 2007 10 53 AM To Hardman, Lisa D SAW, Sugg, Mickey T SAW Cc veitner@suddenlink net, 'matt montanye', fredmortoncommeraal@embargmail com, rcullnpher@stroudengineer com Subject Written waiver of jurisdictional wetlands Lisa Thanks for your help with this If there is a form that needs to accompany this recognition of no jurisdictional wetlands can you attach a copy to this note? If you need any additional property information, please let me know - Whit Site 5208 Hwy 70 Morehead City NC (Corner of Hwy 70 West & Industrial Drive) Former Tenant Randy's Fast Lube dba American Pride Car Wash Engineers Stroud Engineering - Matt Montayne & Ron Cullipher Subject Jurisdiction over drainage ditch on western edge of property Buyers Broad Creek Holdings dba Dunkin Donuts Sellers 971 Associates Inc (Fred Morton & Ron Barnes) Mr Sugg, 1 /8/2008 Page 2 of 2 Regarding the property identified above, Matt Montayne with Stroud Engineering has been working with my client on the redevelopment of this site It is understood that after a review of the site by your office, verbal confirmation of no jurisdictional wetlands over the drainage ditch on the western property line (between the subject site and the current Radio Shack/ Pier 1 strip center) was given Matt had been asked by the Buyer to follow up with your office and get this confirmation in writing He indicated that it should be a relatively easy to get this acknowledgement and that even an email to this effect would suffice Several weeks have gone by and everyone is still looking for this written confirmation The Buyer is scheduled to close today (Thursday, November 8, 2007) however, without this written confirmation from your office, the closing cannot be completed Matt is out of the office until next week He did not confirm receipt of this notification from your office prior to leaving If this waiver as already been sent, can a copy be forwarded to my office that I can communicate to the Buyer? If it has not been sent, is it possible to issue this today? (My email and fax # are below) Each day the closing is delayed is a considerable expense to both Buyer and Seller If you have any questions or if I can be of help in anyway I am at your disposal Thank you in advance - your assistance is greatly appreciated Whit Procter Broker Associate, a -Pro, ABR, SRES Beaufort Realty 325 Front St Beaufort, NC 28516 O 800-548-2961 M 252-422-4822 F 252-728-1322 1 /8/2008 - � N LIMITED LIABILITY e ANNUAL REPORT NAME OF LIMITED LIABILITY COMPANY Morehead Ente uses LLC SECRETARY OF STATE R L L P ID NUMBER 1010959 NATURE OF BUSINESS Property Ownership REGISTEREDAGENT Edner PrginlaJ REGISTERED OFFICE MAILING ADDRESS PO Box 3320 New Bern NC REGISTERED OFFICE STREET ADDRESS 41811adamMo s Late New Bern NC 1 562 Cra SIGNATURE OF THE NEW REGISTERED AGENT r S GNATUR PRINCIPAL OFFICE TELEPHONE NUMBER 252-671-1771 PRINCIPAL OFFICE MAILING ADDRESS PO Box 3320 New Bern NC PRINCIPAL OFFICE STREET ADDRESS 418 Madam Mooes Lane New Bern NC 18 61 MANAGERS/MEMBERS/ORGANIZERS SOSID 1010959 Date Filed 6/27/2007 9 43 INI AM Elaine F Marshall North Carolina Secretary of State 2007178 00216 STATE OF INCORPORATION NC APPOINTMENT Name Witham E Jayne III Name Bruce A J yne Name Dole R Jayne Title Manger Title Manager Title Manager Address Address Address PO Box 3320 PO Box 3320 PO Box 3320 New Bern NC 28564 New Bern NC 18 64 New Bern NC 28564 CERTIFICATION OF ANNUAL REPORT MUST BE COMPLE1 ED BY ALL LIMITED LIABILITY COMPANIES William Jeyx 20080102 FORM MUST BE SIGNED BY A MANAGER/MEMBER DATE Wilham Jayne Manager TYPE OR PRINT NAME ANNUAL REPORT FEE E-Pud MAIL TO Seamy of TYPE OR PRINT TITLE CoTporatim Dmuoo • Pan Offim Box 29525 Ralw* NC 27626-0525