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HomeMy WebLinkAboutSW8080901_HISTORICAL FILE_20080905STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO SW8 O$ O g o I DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE 2 0 c g p G 0 5 YYYYMMDD F WATF �Q 90 Michael F Easley Governor 7 William G Ross Jr Secretary (• North Carolina Department of Environment and Natural Resources 'C Coleco H Sullins Director Division of Water Quality September 5, 2008 Garland W Tuton, Owner PO Box 1066 Jacksonville, NC 28541 Subject Stormwater Permit No SW8 080901 Doris Place High Density Project Onslow County Dear Mr Tuton The Wilmington Regional Office received a complete Stormwater Management Permit Application for Doris Place on September 5, 2008 Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H 1000 We are forwarding Permit No SW8 080901 dated September 5, 2008, for the construction of the subject project This permit shall be effective from the date of issuance until September 5, 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 adjudicatory hearing upon written request within thirty (30) days following receipt of this permit This request must be in the form of a written petition, conforming to Chapter 150B 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 information concerning this matter, please contact Chris Baker, or me at (910) 796-7215 Slnc 1 Edward Beck Regional Supervisor Surface Water Protection Section ENB/csb S \WQS\STORMWATER\PERMIT\080901 sep08 cc Jason Houston, E I , Parker and Associates Onslow County Building Inspections Chris Baker cWilmington Regional Office Central Files D�',�.'hCaro ma dValurn)/y North Carolina Division of Water Qunhty 127 Cardinal Drive Extension Wilmington NC 28405 Phone (910) 796 7215 Wilmington Regional Office Internet www ncwaterquality ore Fax (910) 350 2004 An Equal Opportunity/Affirmative Action Employer —50%Recycled/10%Post Consumer Paper Customer Service 1 877 623 6748 State Stormwater Management Systems Permit No SW8 080901 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 Garland W Tuton Dons Place Dons Avenue, Onslow County FOR THE 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 September 5, 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 51,864 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 project 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 project must be directed into the permitted stormwater control system Page 2 of 7 State Stormwater Management Systems Permit No SW8 080901 6 The following design criteria have been provided in the wet detention pond and must be maintained at design condition a Drainage Area, 9cres 206 Onsite, ft 89,798 Offsite, ft2 None b Total Impervious Surfaces, ft2 51,864 c Design Storm, inches 1 5 d Pond Depth, feet 7 (3 16 avg) e TSS removal efficiency 85 f Permanent Pool Elevation, FMSL 10 g Permanent Pool Surface Area, ft2 5,057 h Permitted Storage Volume, ft3 7,753 1 Temporary Storage Elevation, FMSL 11 2 I Controlling Orifice VO pipe k Permitted Forebay Volume, ft3 4,168 1 Fountain Horsepower, HP N/A m Receiving Stream/River Basin Mill Creek / White Oak n Stream Index Number 19 - 9 o Classification of Water Body "SC,NSW" 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 080901 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 5 Decorative spray fountains are only allowed when the permanent pool volume is 30,000 cubic feet or greater This wet detention basin volume is 15,969 cubic feet therefore, spray fountains are not allowed for this wet detention basin 6 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 7 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 Project 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 project 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 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 Page 4 of 7 State Stormwater Management Systems Permit No SW8 080901 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 a 5th day of September, 2008 NORT CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION for Coleen FT Sullins, Director Division of Water Quality By Authority of the Environmental Management Commission Page 5 of 7 State Stormwater Management Systems Permit No SW8 080901 Dons Place Stormwater Permit No SW8 080901 Onslow 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 project, (Project) for (Project Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the project 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 080901 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 project 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 Onslow County Building Inspections Page 7 of 7 DWQ USE ONLY JP Date Received Fee Paid I Permit Number - { - 3 !" t'S 6 D 96 7 State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM This form may be photocopied for use as an original I GENERAL INFORMATION 1 Applicants name (specify the name of the corporation, individual, etc who owns the project) Garland W and Sue C Tuton 2 Print Owner/Signing Officials name and title (person legally responsible for facility and compliance) 3 Mailing Address for person listed in item 2 above City lacksonville State NC Zip 28541 Phone (910 ) 577-1441 Fax (910 ) 577- 7319 Email 4 Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc ) 5 Location of Project (street address) City lacksonville County Onslow Zip 28540 6 Directions to project (from nearest major intersection) Take 17 North turn left onto Gum Branch Road, then left onto Doris Ave Project is on the left 7 Latitude 35' 46' 40" N Longitude 77' 25' 05" W of project 8 Contact person who can answer questions about the project Name Jason A Houston, E I Telephone Number (910 ) 455-2414 Email 12aitext@bizec rr com II PERMIT INFORMATION 1 Specify whether project is (check one) ®New Form SWU-101 Version 03 27 08 Pagel of4 2 If this application is being submitted as the result of a renewal or modification to an existing permit, list the existing permit number 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, information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748) ❑CAMA Major ®SedLmentation/Erosion Control ❑404/401 Permit ❑NPDES Stormwater 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 Pond 2 Stormwater runoff from this project drains to the White Oak River basin 3 Total Property Area 3 44 acres 4 Total Wetlands Area 0 46 acres 5 100' Wide Strip of Wetland Area 0 46 acres (not applicable of no wetlands exist on site) 6 Total Project Area** 3 44 acres 7 Project Built Upon Area 34 6 % 8 How many drainage areas does the project have?l 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 For high density projects, complete the table with one drainage area for each engineered stormwater device Basin Information Drainage Area 1 Drainage Area 2 Receiving Stream Name Mill Creek Stream Class & Index No SC,NSW 19-9 Total Drainage Area (sf) 89,798 On -site Drainage Area (so 89,798 Off -site Drainage Area (sf) 0 Existing Impervious* Area (so 0 Proposed Impervious*Area (sf) 51,864 % Impervious* Area (total) 578 Impervious* Surface Area Drainage Area 1 Drainage Area 2 On -site Buildings (sf) 21,289 S F On -site Streets (sf) 0 On -site Parking (sf) 25,592 S F On -site Sidewalks (sf) 4,983 S F Other on -site (sf) 0 Off -site (so 0 Total (sf) 51,864 S F * Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas, sidewalks, gravel areas, etc **Total project area shall be calculated based on the current policy regarding met usu a a n area percentage calculation This is the area used to calculate percent project built a on area BL1 CFp 0 ? 2008 Form SWU-101 Version 03 27 08 Page 2 of 10 How was the off -site impervious area listed above derived? 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 Forms canbe downloaded from http //h2o enr state nc us/su/bmp forms htm - deed restrictions 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 Forms can be downloaded from http M12o enr state nc us/su/bmp forms htm 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 Form SW401-Permeable Pavement 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 Permeable Pavement Supplement ,SFP 0 4 2008 Form SWU-101 Version 03 27 08 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 hup //h2o cnr state nc us/cu/msi maps him) Please indicate that you have provided the following required information by initialing in the space provided next to each item • Original and one copy of the Stormwater Management Permit Application Form • Original and one copy of the Deed Restrictions & Protective Covenants Form (if required as per Part IV above) • Original of the applicable Supplement Form(s) and O&M agreement(s) for each BMP • Permit application processing fee of $505 (Express $4,000 for HD, $2,000 for LD) payable to NCDENR • Calculations & detailed narrative description of stormwater treatment/management • Copy of any applicable soils report • Two 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 (ex designing engineer or firm) Designated agent (individual or firm) Jason A Houston, E I of Parker & Associates, Inc Mailing Address City Jacksonville Phone (910 ) 455-2414 Email paitext@bizec rr com VIII APPLICANT'S CERTIFICATION State NC Zip 28541 Fax (910 ) 455-3441 I, (print or type name of person listed in General Information, item 2) Garland W Tuton 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 covenants will be recorded, and that the proposed project complies with the requirements of 15A NCAC 2H 1000 Signature Form SWU-101 Version 03 27 08 Page 4 of j,Xoldwi uOµoV anquwj!lV ,pwnuoddp Ienbi UV- 9IZL`96L (016) • 50b8Z OM u019u'wpM miquclxq anuQ luu'Pm,0 LZI b0OZ-o5E 016 a 59ZL-96L OI6 auogd wnxd uapueS woi3 3uUlliwod ssajdx3 L (ianoo (3xa)sa9ed OR J M01,07 OI 00 pa" ,L��5 2I3A0� XV3 �onaae0� `(alsv� lavyai�y ,Gle;aloas ` if `ssoff 9 urvyl+M aa,,jp pnum3ag u013ulmptA saaanosa-d1le.an;le11 pule ;uawu0J1AUa f0 ;aawlivda(l Bugojuj gla0Nj3o 014S 8 'SINd S9 WI ]viol � K VZI NO xi Xdi 8 „9011 IPPESSPOI616 WV 9£ 60 90-d3S � d0 #W 31ON 3dAl S30dd Mi X1 a3AI3038 INVIS 31VO ON3S VON 09E 016 8N30ON '803 xt WV L£'60 NOW 90H-80-ES INOE8 NOIIOVSNVNI 10 'd PARKER & ASSOCIATES, INC. Shapfna Hor1gohS Consulting Engineers - Land Surveyors - Land Planners 306 New Bridge Street . P O Box 976 Jacksonville, NC 28541-0976 (910) 455-2414 • Fax (910) 455-3441pmrrrprr�• ARQ DORIS PLACE 0�� ., .0. i7ti9'••, JACKSONVILLE, NORTH CAROLINA ? �4QOEESSIp,9! _= SEAL STORMWATER WET DETENTION POND 14575 i ENGINEERING CALCULATIONS uN` AUGUST 2008 �'rprunn $-2$-0 8 1 AREA Total Drainage Area 89,798 SF Impervious Area Buildings, Streets, and Sidewalks 51,864 SF Percent Impervious = Impervious = 51,864 = 57 8 % Total 89,798 2 PERMANENT POND SURFACE AREA From Table 10-4 from NCDENR Stormwater BMP Manual for 60 % impervious, 3 0 average basin depth with Vegetative Filter (85% TSS Removal) Yields SA/DA = 5 00% 89,798 SF x 5 00 % = 4,490 SF surface area required Top of permanent pond elevation is 10 0 Area at 10 elevation = 5,057 SF provided OK EMAII ADDRESS TEY r MESSAGFS TOyaitextaibnec rr com MAPS AND PLANS TO paid raf(a�bizee rr com / ♦ ENVIRONMENTAL ENGINEERING ♦ STORMW ATER, WATFR AND WASTEWATER SYSTEMS ♦ FEASIBILITY AND DEVELOPMENT CONSUI TING ♦ CLOBAL POSITIONING SURVE\S ♦ SUBDIVISION AND CONS rRUC HON PLANS ENG-2 3 TEMPORARY DETENTION STORAGE VOLUME Retain 1 5' of runoff from area draining to pond Use Schueler "Simple Method" from Stormwater Best Management Practices Manual RV = 0 05 + 0 009 (1) RV = Runoff coefficient (inch per inch) I = Percent Impervious RV = 0 05 + 0 009 (57 8) = 0 57 inch / inch Find Temporary Water Quality Volume V = (Design Rainfall) (RV) (Drainage Area) _ (1 5 inch) (0 57 inch / inch) (1 ft ) (89,798 SF) (12 in ) = 6,398 CF Required 4 TEMPORARY WATER QUALITY STORAGE VOLUME Use 1 2 Ft Temporary Pool Area at 10 elevation (permanent pond) = 5,057 SF Area at 10 5 elevation (vegetated shelf) = 6,564 SF Average Area = 5,810 SF Storage Vol = 5,810 SF x 0 5 Height = 2,905 CF provided Area at 11 2 elevation = 7,288 SF Average Area = 6,926 SF Volume = 6,926 SF X 0 7 height = 4,848 CF Total Storage Volume = 2,905 CF + 4,848 LF = 7,753 CF provided 7,753 CF provided > 6,398 CF required OK ENG-3 5 RELIEVE TEMPORARY WATER QUALITY VOLUME IN 2 TO 5 DAYS Q = Cd A 2gh (onffce equation) Q = 6,398 CF - 2 days = 0 037 CFS Q = 6,398 CF - 5 days = 0 0148 CFS Cd=060 g = 32 2 fUsec h = 0 6 average height For 2 Day Release Solve For A = Q = 0 037 = 0 0099 SF Cd 2gh (0 6) 2(32 2)(0 60) Solve for Orifice Diameter, D A=00099SF=rrRI R=0056ft=0671nch D=13inch For 5 Day Release Solve For A = Q = 00148 = 0 0039 SF Cd 2gh (0 6) 2(32 2)(0 6) Solve for Orifice Diameter, D A=000039SF=nR2 R=00112ft=0131nch D = 27 inch Use 1 0 inch diameter orifice 0 if ENG-4 6 Forebay Volume Main Bay Area at Elevation 10 0 = 3,898 SF Bottom of Vegetative Shelf Elevation 9 5 = 2,695 SF Average Area = 3,296 SF Volume = 3,296 SF X 0 5 Ft = 1,648 CF Main Bay Area at Elevation 9 5 = 2,695 SF Main Bay Area at Elevation Bottom of Pond 3 0 = 429 SF Average Area = 1,562 SF Volume = 1562 SF X 6 5 Ft = 10,153 CF TOTAL MAIN BAY VOLUME 11,801 CF Forebay Area at Elevation 10 = 1,159 SF Forebay Area at Elevation 3 = 32 SF Average Area = 595 5 SF Volume = 595 5 SF X 7 Ft = 4,168 CF Forebay Volume shall contain approximately 20% of the total permanent pond volume Permanent Pool Volume= Mainbay & Forebay = 11,801 CF + 4,168 CF = 15,969 CF Forebay Volume = 4,168 CF v l-+:1 SFP 0 / 4 2008 / ENG-5 FOREBAY VOLUME / PERMANENT POOL VOLUME = 4,168 CF / 15,969 CF = 26 1 % O K 7 Mean Pond Depth Main Bay Mean Depth Volume (from above) = 11,801 CF Surface Area Main Bay (from above) = 3,898 SF Mean Depth = 11,801 CF = 3 027 Ft 3,898 SF Forebay Mean Depth from Permanent Pool to bottom of Forebay Volume (from above) = 4,168 CF Surface Area(from above) = 1,159 SF Mean Depth = 4,168 CF = 3 6 Ft 1,159 SF Weighted Mean Depth of Whole Pond Forebay = 26 1 % Main Bay = 73 9% Mean Depth = (3 6 Ft X 26 1 %) + (3 027 Ft X 73 9%) Mean Depth = 3 18 Ft cl JAH Dons calos r VI SFp 0 4 2008 z--2P Pond cFP r�T�FD Subcat Reach On Link Drainage Diagram for Dons Place Prepared by Parker 8 Associates Inc Printed 8/20/2008 FHOOCAD(D 8 50 s/n 005202 © 2007 HydroCAD Software Solutions LLC Doris Place ed by Paikei R Associates, Inc Type 1124-ht I Ycai 24-HR Rainfall=353" Printed 8/20/2008 Solution~ LLC Summary for Pond 2P Pond Inflow Area = 2 061 ac, 57 76% Impervious, Inflow Depth > 0 97" for 1 Year 24-HR event Inflow = 4 09 cfs a 11 97 hrs, Volume= 0 167 of Outflow = 0 03 cis o 20 00 Ins, Volume= 0 016 at, Atten= 99%, Lag-- 481 9 nun Primary = 00 3Tcfs a 20 00 hrs, Volume= 0 016 of PoS�- beudepmen} Oocwat nL1e., lyr -,; lkn SUM Routing by Stor-Ind method, Time Span= 5 00-20 00 Ins, dt= 0 02 hrs Peak Elev= 11 04' a 20 00 ]its Surf Area= 7,119 sf Storage= 6,585 cf Plug -Flow detention time=262 2 min calculated for 0 016 of (10% of inflow) Center-ol-Mass det tune= 157 2 min ( 967 3 - 810 1 ) Volume Invert Avail Storage Storage Description #1 1000, 22,644 cf Custom Stage Data (Prismatic) Listed below(Recalc) Elevation Surf Area Inc Store Cum Store (feet) (sq-ft) (cubic -feet) (cubic -feet) 1000 5,057 0 0 1050 6,564 2,905 2,905 11 00 7 078 3,411 6,316 1200 8,150 7 614 13,930 1300 9,278 8,714 22,644 / OuT14 P. Pe - Device Routing Invert Outlet Devices #1 Primary 8 00' 18 0" x 34 0' long Culvert CMP square edge headwall, Ke= 0 500 Outlet Invert= 7 00' S= 0 0294 7' Cc= 0 900 n= 0 024 ou8{e} S�+ueiurt #2 Device 1 11 20' 2 00' x 2 00' Honz Orifice/Grate Limited to weir flow C= 0 600 #3 Device 1 10 00' 1 0" Vert Orifice/Grate C= 0 600 E-- 1 0" dr pet #4 Primary 11 60' 15 0' long x 5 0' breadth Broad -Crested Rectangular Weir Head (feet) 020 040 060 080 100 120 140 160 180 200 250 300 3 50 4 00 4 50 5 00 5 50 s?' Iltrny Coef (English) 2 34 2 50 2 70 2 68 2 68 2 66 2 65 2 65 2 65 2 65 2 67 2 66 2 68 2 70 2 74 2 79 2 88 Primary OutF1o" Max=O 03 cis @ 20 00 firs H W=11 04' (Free Discharge) Culvert (Passes 0 03 cis of 11 88 cis potential flow) 2=0rifice/Grate ( Controls 0 00 cis) 3=Orifice/Grate (Onlice Controls 0 03 cis @ 4 81 fps) =Broad -Crested Rectangular Weir ( Controls 0 00 cis) SFp 0 4?008 Doris Place lipt, 11 24-hr l ur 24-11R Rainlall- 3.5,i " Prepared by Paiker&. Associates. Inc. Printed �ti 20 2008 1 kdni('A[),11 S,50 , 11 005202 1 200' 1 lvdr,,CAI) Sottwaje Solution, Ll PaLe 2 Pond 2P: Pond Inflow Area=2.061 ac Peak Elev=11.04' Storage=6,585 cf 5 6 7 b 9 1 (i 11 12 13 14 is 16 17 1 h 19 2D Time (hours) Doris Place Tree H 4-hrlq }car 24IIRRuinlall =6 03" Prepared by Parker S Associates, Inc -- Printed s 20200x fhdroC,1D s.50 ., n 0t15202 � '_00711vdroCAD Software Solution, 1,1 Paul 3 Summary for Pond 2P: Pond Inikn, rhea - 22061 aC 76",, Impervious Inflow Depth = 3.15" for 10 Yew 24-1IR cvem pillow = 12.9S cts tp I L96 hrs. Volume = 0.541 al' Outflow = 5.74 cis ,n- 12.05 hrs, V01umC= 0.35E el; Atten- 56",, I a, 5.5 min Pninar' = 5.74 ef,:6 12.05 hrs. Volume- 0355 of Routing by Stor-Ind mcihod, l imc Span= 5.00-20.00 hrs, di- 0.02 Ivs Peak I:lc\ 1 L.56' a 12.05 his SUrf.Aiea= 7,6H 1 sl Storage 10,465 of Plug -Flow detention lime- 124.7 min calculaled for 0.355 af(661',,, of inflow) C'Cnter-of-Ma,, det. time- 53.4 min ( 537.6 - 785.3 ) Volumc Invui Acail.Storage Storage Description I 10.00' 22.644 cf Custom Stage Data (Prismatic) Listed below (Rcealc) Elevation Surf.Area Inc.Store Cum.Store (feet) (,q-tt) (cubic -feet) (cubic -feet) IIL00 5,057 0 0 10.5O 6.564 2.905 2.905 1 1.00 7,075 3.41 1 6, + 16 12.00 S.150 7,614 13.930 13.00 9,275 5.714 22,644 Device Routing linen Outlet Dcaices I Primary 190' 18.0" x 34.0' Tong Culvert CMI', square edge headv+a1L Ike- 0.500 Outlet Invert= 7.00' S= 0,0294 "' Cc - 0.900 n= 0.024 _ Devicc 1 1 120' 2.00' x 2,00' Horiz. Orifice/Grate Limited to weir flow C= 0.600 Dcv ice I 10,00' 1.0" Vert. Orifice/Grate C= 0,600 j�4 Primary 1 1.60' 15.0' long x 5.0' breadth Broad -Crested Rectangular Weir I ead (fect) 0.20 0.40 0.60 0.50 1.00 1.20 1.40 1.60 1.80 2.00 2.50 100 3.50 4.00 4.50 5.00 5.50 Coei'. (English) 2.34 2.50 2.70 2.68 2.6S 2.66 2,05 2.65 2.65 2.65 2.67 '.66 2.6S 2.70 2.74 2.79 2.85 - rimarr' OutFlo" Max=5.70 cis {a 12.05 his HNV: 1156' (Free Discharge) =Culvert (Passes 5.70 cts of 13.04 cis potcntal Ilow) - 2=0rifice/Grate (Weir Controls ,.67 cfs au 1.96 fps) L3=Orifice/Grate (Orifice Controls 0 0- cis fig 5 93 fps) =Broad -Crested Rectangular Weir (Controls 0.00 cfs) Doris Place 7ipc11_'4-hr11)Scar24-11R Rabdall=6_63 Prepared h% Parker R AS,oclates, Inc. Printed 3;20=20m IIadIo( AD I� 8 50 . n 00S'0) , 200? IIN dro( AD Sof fare Solution, LI C Pace 4 Pond 2P: Pond I Iydrog rapt, F i,r,o,v 14 I 7., 's] IN Pnmary ,, Inflow Area=2.061 ac Peak Elev=11.56' 10 Storage=10,465 cf ti 7 8 9 i0 11 1" 73 14 15 16 17 18 19 20 Time (hours) Doris Place T171r1124-ki'100 )car_'4}7RRainlall=ll.ilY, Prclimcd by Parker :associates. Inc. - Primed 5 20 2005 I IvdroCAD 5.50 , n 005202 , 2007 I IN bo( AD Solw are Solutions LL( Pawc. 5 Summary for Pond 2P: Pond lullo(+- Area - 2.061 ac, 57.76", lmperviuus. Inflow Dcptll = 704" tier 100 Year 24-HR even) Inflow _ 2-1 77 ch a 1 1.96 hrs. Volume= 1.209 of Outilon' - 24.19 0'. a 12.00 hrs, Volume = 1,023 at. Altus = 13"��, 1 aw= 12 min Piimarc - 24.I9 cls ut 12.00 hrs. Voluma= 1.023 of _ Routing 1)5v Sloe -Ind method. Time Span= 5.00-20.00 Irs, (It- 0.02 hrs Peak HeN= 12.02''a 12.00 hrs Sud.Area= S 170 sf Storage-- 14,077 cf Plu�-Flog( detuuion time 70 .2 min calculated fhr 1 (123 uf(85°,"of milow) Centerol' Mass dct tine= 22() min ( 79 .0 - 767,3 ) V041111e Myer[ Avail.Slorawe Stora-pe Description t;I IO.00' 22,644 cf Custom Stage Data (Prismatic) Listed below(Recalc) Flex.ation Surt:Arca Inc.Storc ('um.Storc (fret) (sq-0) (cubic -feet) (cubic -legit) I O.00 5,057 0 0 10.50 0,564 2,905 2,905 11,00 7,07N 3.411 6,316 12.00 8.150 7.614 t3,930 13.00 927R R.714 22.644 Device Routing Invert Outlet Dcvices 41 Pnmara 5.00' 18.0" x 34.0' long Culvert CMP, square edge hcadwall, Ke- 0.500 (Outlet Invert- 7.00' S=- 0.0294 "' Cc- 0.900 n= 0.024 -2 Device I 11.20' 2.00' x 2.00' floriz. Orifice/Grate Limited to weir flow C= 0,600 Device I 10.00' 1.0" Vert. Orifice/Grate C=0.600 g4 Primary 11.60' 15.11' long x 5.0' breadth 13rond-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 O.SO 1,00 120 1.40 1.60 LSO 2.00 2.50 3.00 ,.50 4.00 4.50 5.01) 5.50 Coct: (English) 2.34 2.50 2.70 2.6R 2,08 2.66 265 2.65 2.65 2.65 ? (i7 2.66 2.6N 2.702.74 2.79 2.55 Primary OutFlo" Ma.x=24.09 cfs i 12.00 hrs HW-12.02' (Free Discharge) Culvert (13ancl Control, I 19C cf (j 7.91 fps) 2=Or i(ice/Gr ate ( Passe, < 17.39 cfs potemial flow) 3=0rifice/Grate (Passe 0.04 cfs potential ll(w) =Broad -Crested Rectangular Weir (Weir Controls 10.11 cfs ire 1.62 fps) aY p (fay . Doris Place Type 11 ?d-hr 100 }'(ar- 2a-11R Rainfidl- 11 3t)" Prepared by I)aiket & Associates. Inc. Primed 5 20 1-008 II�(it o(ADk R50 sn0g502 , 20071IN(11-AADSoth+'.,JeSitlwronsIL( Page6 Pond 2P: Pond Hydrograph FM I,flo.v Inflow Area=2.061 ac Peak Elev=12.02' 22 Storage=14,077 cf L 6 7 A y tp 11 12 1i 14 15 1el 17 18 19 Time (hours) Stormwater Narrative DORIS PLACE Dons Place is a 34-lot, high density, townhouse development The project drains to the Mill Creek which is classified as C, NSW waters The project boundary has a Total Area of 3 44 acres The project area or area that is tributary to the wet pond is 2 06 acres All Project Built Upon Areas will dram into the pipe network and pond For additional information, please refer to the Stormwater Management Permit Application Form, the Wet Detention Basin Supplement Operation ad Maintenance Agreement and the Engineering Calculations CI JAH Dons SW nar PARKER & ASSOCIATES, INC. Consulting Engineers - Land Surveyors - Land Planners 306 New Bridge Street . P O Box 976 Jacksonville, NC 28541-0976 (910)455-2414 + Fax (910) 455-3441 September 3, 2008 Mr Chris Baker NCDENR— Water Quality 127 Cardinal Drive Ext Wilmington, NC 28405 RE Dons Place Onslow County EXPRESS STORMWATER SUBMITTAL Dear Mr Baker, Please find enclosed the following items related to the above referenced project Two (2) copies of the plans (Sheets 1,2,4,7 and 9 of 9) One (1) original and one (1) copy of the Stonnwater Management Permit Application Form One (1) original Wet Detention Basin Supplement One (1) ongmal Wet Detention Basin Operations & Maintenance Agreement Wet Detention Pond Calculations Stonnwater Narrative One (1) check # 7913 in the amount of $4000 00 for the Express Review Fee If you have any questions or need additional information please contact me Sincerely, PARKER & ASSOCIA' J on A H /ston Enclosures xc Garland and Sue Tuton (w/paperwork) CF (P), LAM JAH/mn C2 JAH Baker (9 3 08) EMAIL ADDRESS TENT MESSAGES 70 oanextna b¢ec rr com MAPS AND PLANS TO aaidraft(n),brzec rr eom / ♦ ENVIRONMENTAL ENGINEERING ♦ STORMWATER WATER AND WASTEWATER SYSTEMS f FEASIBILITV AND DEVELOPMENT CONSULTING ♦ GLOBAL POSITIONING SURVEYS * SUBDIVISION AND CONSTRUC710N PLANS Re Dolly Place Subject Re Doris Place From "Parker & Associates, Inc " <paitext@bizec rr com> Date Wed, 27 Aug 2008 16 40 17 -0400 To "Janet Russell" <Janet Russell@ncmail net> That time is great We will see you then Jason A Houston, E I / ads Parker & Associates Inc (910) 455-2414 --- - Original Message ----- From Janet Russell To Jhouston(cDBIZEC RR COM Parker & Associates, Inc mtuton(a)-ec rr com Sent Wednesday August 27 2008 4 22 PM Subject Doris Place *Doris Place* August 27, 2008 The Express Stormwater Submittal Meeting for Doris Place has been scheduled with *Chris Baker on September 4, 2008 at 10 00 AM *here in the Wilmington Regional Office, 127 Cardinal Drive Ext The applicant or his representative must attend the meeting Please review the submittal requirements, attached Of particular note, please submit the plans folded (9"x 14") so that they will tit into our new file system Please respond ASAP to confirm and reserve the meeting time and date Thanks, Janet Russell Express Permitting I of 1 8/27/2008 4 50 PM Re Doris Place Subject Re Doris Place From "Parker & Associates, Inc " <partext@bizec rr com> Date Wed, 27 Aug 2008 10 28 53 -0400 To "Janet Russell" <Janet Russell@ncmail net> Ms Russell, We are both available anytime on Thursday, Sept 4 Is that day a possibility? Thank you, Jason A Houston, E I Parker & Associates, Inc (910)455-2414 ----- Original Message -- From Janet Russell To Parker & Associates, Inc Sent Tuesday August 26 2008 3 56 PM Subject Re Doris Place Thank you - that's the best idea Parker & Associates, Inc wrote > Ms Russell, > Thank you for your reply > Unfortunately, I have an obligation on that Toes morning > If acceptable, I will email you back soon with possible alternative > dates that our Client and I are available > Jason A Houston, E I / ads > Parker & Associates, Inc > (910) 455-2414 > ----- Original Message ----- > *From * Janet Russell <mailto Janet Russell(@ncmail nev > *To * Parker & Associates, Inc <mailto paitexQbizec rr com> , > Jhouston(a-)BIZEC RR COM <mailto Jhouston c BIZEC RR COM> > *Sent * Tuesday, August 26, 2008 3 39 PM > *Subject * Doris Place > August 26, 2008 I of 2 8/27/2008 11 24 AM Re Doris Place Subject Re Dons Place From "Parker & Associates, Inc " <paitext@bizec rr com> Date Tue, 26 Aug 2008 15 50 05 -0400 To "Janet Russell' <Janet Russell@ncmail net> Ms Russell, Thank you for your reply Unfortunately, I have an obligation on that Tues morning If acceptable, I will email you back soon with possible alternative dates that our Client and I are available Jason A Houston, E I / ads Parker & Associates, Inc (910) 455-2414 ----- Original Message ----- From Janet Russell To Parker & Associates, Inc Jhouston(o)BIZEC RR COM Sent Tuesday August 26 2008 3 39 PM Subject Dons Place August 26, 2008 *Doris Place* Jason The Express Stormwater submittal meeting has been scheduled with *Chris Baker on Tuesday, September 2, 2008 at 10 00 AM* here in the Wilmington Regional office The applicant or his assistant is required to attend the meeting Please review the submittal requirements, attached Also, please note that plans should be submitted folded to 9" x 14" to fit our new file system Please respond within 2 business days to reserve and confirm the submittal meeting date / time Thank you, Janet Russell Express Coordinator 1 of 1 8/26/2008 3 56 PM about blank August 26, 2008 Dons Place Jason The Express Stormwater submittal meeting has been scheduled with Chris Baker on September 2, 2008 at 10 00 AM here in the Wilmington Regional office The applicant or his assistant is required to attend the meeting Please review the submittal requirements, attached Also, please note that plans should be submitted folded to 9" x 14" to fit our new file system Please respond within 2 business days to reserve and confirm the submittal meeting date / time Thank you, Janet Russell Express Coordinator I of 1 8/26/2008 3 38 PM d On )�zN4S North Carolina Department of Environment and ©'A�n Natural Resources Request for Express Permit Review NCDENR FILL-IN all the Information below and CHECK the Permrt(s) you are Coordinator along with a completed DETAILED narrative, site plan i of the project location Include this form In the application package For DENR Use ONLY Reviewer G$ Submit G/g Time 10 ao Confirm for express review FAX or Email the completed form to Express • Asheville Region -Alison Daivrdson 828.2964698,alison davidsonfncmail net • Fayetteville or Raleigh Region -David Lee 919-791.4203, david IeeNncmail net • MooresvilleA-Patrick Grogan704-663.3772orPatrick gropanDncmailnet • Washington Region -Lyn Hardison 252 946-9215 or Ivn hardison®ncmail net • Wilmington Region -Janet Russe11910-350.2004 or tanet russellOncmad net NOTE Project application received after 12 noon will be stamped in the following work day Project Name DORIS PLACE County ONSLOW Applicant GARLAND W TUTON Company GARLAND W AND SUE C TUTON Address P 0 BOX 1066 City JACKSONVILLE State NC Zip 28541 Phone 910 577-1441 Fax 910 577 7319 Email _ Project is Drains into MILL CREEK waters Project Located in WHITE OAK River Basin Engineer/Consultant JASON A HOUSTON, E I Company PARKER & ASSOCIATES, INC Address P 0 BOX 976 City JACKSONVILLE, State NC Zip 28541 Phone 910-455-2414 Fax 910-455 3441 Email pait95bizec rr coin (Check all that ❑ Scoping Meeting ONLY ❑ DWQ, ❑ DCM, ❑ DLR, ❑ OTHER nE C E I V ED AUG 2 5 2008 DWO PROJ # ❑ Stream Origin Determination If of stream calls - Please attach TOPO map marbng the areas in questions ® State Stormwater ❑ General ❑ SFR, ❑Bkhd & Bt Rmp, ❑ Clear & Grub, ❑ Utility ❑ Low Density ❑ Low Density Curb & Gutter _ It Curb Outlet Swales ❑ Off site [SW (Provide permit If)] E High Density Detention Pond 1 # Treatment Systems ❑ High Density Infiltration _ #Treatment Systems ❑ High Density -Bio Retention _ # Treatment Systems ❑ High Density-Constructwe Wetlands _ # Treatment Systems ❑ High Density Other _ # Treatment Systems ❑ MODIFICATION SW _ (Provide permit #) ❑ Coastal Management ❑ Excavation & Fill ❑ Bridges & Culverts ❑ Structures Information ❑ Upland Development ❑ Manna Development ❑ Urban Waterfront ❑ Land Quality ❑ Erosion and Sedimentation Control Plan with _ acres to be disturbed (CK It (tor DENR use)) WETLANDS QUESTIONS MUST SE ADDRESSED BELOW ❑ Wetlands (401/ Check all that apply Wetlands on Site E Yes ❑ No Wetlands Delineation has been completed E Yes ❑ No US ACOE Approval of Delineation completed E Yes ❑ No 404 Application in Process w/ US ACOE ❑ Yes E No Permit Received from US ACOE ❑ Yes E No Fee SDIrt for muftle oermrts (Check # Isolated wetland on Property ❑ Yes E No Buffer Impacts E No ❑ YES acres) Minor Variance E No ❑ YES Major General Variance E No ❑ YES 401 Application required ❑Yes E No If YES ❑ Regular Perennial, Blue line stream etc on site ❑ yes ❑ No For DENR use only Total Fri dmniint SUBMrTTAL DATES 1 Fee SUBMrrTAL DATES Fee CAMA $ Variance Mel, El Min) $ SW ❑ HD, ❑ LD ❑ Gen $ 401 $ LDS $ Stream Deter,_ $ S'TORMWA'TER NARRATIVE 1 General Information a Name of Project DORIS PLACE b Street Address, City, County From intersection of US 17 and 24, take 17 North then turn left onto Gum Branch Road, then left onto Dons Ave Project is on left c Acres in Tract 344 d Acres being disturbed 26 e Acres in Wetland 046 1 Wetlands Must Be Delineated & Sign -Off Obtained From The Corps — Completed 2 Proposed Wetland Impacts Require Permits From Corps & DWQ No f Ownership Information From NC Secretary of State Web Site Garland W and Sue C Tuton g Description of Development Proposal Dons Place is a 34 lot High Density Townhouse Subdivision Site is a mix of wooded and previously developed parcel 1 Previously or Existing Permits None 2 Tax Parcel ID Number 442-17,442-16 h Pre — 1988 Built Upon Area, if applicable (� E C E ( V E D U^u( A;IG 2 5 2008 IIII 13,350 SF for old building and parking Discuss Phasing of the Project & Stormwater Facilities when applicable n/a Discuss Proposed Waster Water Treatment & Water Supply City of Jacksonville Sewer and Water k Identify Historical Sites & Projects Being Funded With Public Monies n/a l Disclose Any/All Non -Compliance Issues with DENR Agencies n/a 2 Stormwater Information a Provide River Basin, Stream Classification & Index Number for All water Bodies On or Adjacent To The Project or Closest to The Project Area Mill Creek SC, NSW, 19-9 b Identify Whether the Stormwater Design is High Density or Low Density, Commercial or Residential, State Stormwater or NPDES Phase II, Address Vested Rights When Applicable, Identify Pockets of High Density High Density Residential NPDES, Phase II c Proposed Total % Impervious Surface 34 6% d Number of Proposed Treatment Measures, Type(s) of Collection System 1 wet pond e Will All Built Upon Area Be Collected R E C E I V ED yes AUG 2 5 2008 DWO PROJ 4 f Identify Whether or Not the Project Has Buffer Requirements & Whether or Not Development Is Proposed Within A Buffer no g Discuss Coastal Management Areas of Environmental Concern When Applicable n/a h Disclose Whether or Not Off -Site Runoff Is Coming Onto The Site or Into The Proposed BMP no i Discuss Whether Road Construction Across Other property Is Necessary To Access This Project no J If An On -Site Evaluation Of The Soils Has Been Done, Discuss Infiltration Rates, Seasonal High Water Table, etc, and Include Date of Site Evaluation This Is Required For Infiltration Protect) n/a C 1 forms stormwater donsplace gen info nar nE C E I V ED I�lnllf AUG 2 5 2008 DWQ PROJ # uul II/Cl mvtA r.�u��k i Id —_ — III I /III I. II/ e / 1 I � PI � ,•-_• II / fG III 11� r....s .....�.er......... �....... xx— s r 1 I PY19IXJ AW 4Da4}lfATCIi ` \ DFAPIAGEFiPEaNRI � I r� _ �� GnEmy DfuuB, @oYnkblmvWtm CVNtl Pm ,• \ Dons Place VD A— C WdW kSueCTum ra A0B SCALL 1 -30E -JD W _ark� Aaeocte4e INC