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HomeMy WebLinkAboutSW8990108_Historical File_19990803Stafe of North Carolina Department of Environment and Natural Resources Wilmington Regional Office James B. Hunt, Jr., Governor Wayne McDevitt, Secretary Division of Water Quality Mr. Charles E. Wells, Member/Partner CHARLES E. WELLS 1640 N.C. Hwy. 53 West Burgaw, NC 28425 Dear Mr.Wells: i, � • r NCDENR"" NORTH C;AROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES August 3, 1999 Subject: Permit No. SW8 990108 First National Bank Building High Density Stormwater Project Pender County The Wilmington Regional Office received a complete Stormwater Management Permit Application for First National Bank Building on June 28, 1999. Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Title 15ANCAC 2H.1000. We are forwarding Permit No. SW8 990108 dated August 3, 1999, for the construction of First National Bank Building. This permit shall be effective from the date of issuance until August 3, 2009, 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. Ifyou have any questions, or need additional information concerning this matter, please contact Scott Vinson, or me at (910) 395-3900. Sincerely, Rick Shiver Water Quality Regional Supervisor RSS/say. S:\WQS\STORMWATIPERMIT\990108.AUG cc: Jim Honeycutt, P.E. Rodney Scruggs, Pender County Inspections Scott Vinson Wilmington Regional Office Central Files 127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone 910-395-3900 FAX 910-350-2004 An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper State Stormwater Management Systems Permit No. SW8 990108 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 CHARLES E. WELLS First National Bank Building Pender 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 August 3, 2009 and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS 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 on page 3 of this permit, the Project Data Sheet. The stormwater control has been designed to handle the runoff from 39,511 square feet of impervious area. 3. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 4. The tract will be limited to the amount of built -upon area indicated on page 3 of this permit, and per approved plans. 2 n State Stormwater Management Systems Permit No. SW8 990108 Project Name: Permit Number: Location: Applicant: Mailing Address: Application Date: Water Body Receiving Stormwater Runoff: Classification of Water Body: If Class SA, chloride sampling results: Pond Depth, feet: Permanent Pool Elevation, FMSL: Total Impervious Surfaces, ft2: Offsite Area entering Pond, W: Required Surface Area, W: Provided Surface Area, ft2: Required Storage Volume, W: Provided Storage Volume, W: Temporary Storage Elevation, FMSL: Controlling Orifice: DIVISION OF WATER QUALITY 'ROJECT DESIGN DATA SHEET First National Bank Building SW8 990108 Pender County Mr. Charles E. Wells, Member/Partner CHARLES E. WELLS 1640 N.C. Hwy. 53 West Burgaw, NC 28425 June 28, 1999 Osgood Branch 1S - "C SW" n/a 4 39.00 39,511 18,295 3,466 3,468 3,252 3,894 40.00 0.75" diameter pipe 3 State Stormwater Management Systems Permit No. SW8 990108 H. SCHEDULE OF COMPLIANCE The stormwater management system shall be constructed in it's entirety, vegetated and operational for its intended use prior to the construction of any built -upon surface except roads. 2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. The permittee shall at all times 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 revegetation of side slopes. d. Immediate repair of eroded areas. e. Maintenance of side slopes in accordance with approved plans and specifications. f. Debris removal and unclogging of outlet structure, orifice device and catch basins and piping. g. Access to the outlet structure must be available at all times. h. The vegetated filter will be kept grassed with no erosion. The spreader mechanism will be kept clear. 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 will not be allowed in the stormwater treatment system. The facilities shall be constructed as shown on the approved plans. This permit shall become voidable 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. 8. 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. Prior to the sale of any portion of the property, an access/maintenance easement to the stormwater facilities shall be granted in favor of the permittee if access to the stormwater facilities will be restricted by the sale of any portion of the property. 10. The permittee is responsible for verifying thatthe proposed built -upon area does not exceed the allowable built -upon area. 11. The runoff from all built -upon area on the project must be directed into the permitted stormwater control system. 12. 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. 4 State Stormwater Management Systems Permit No. SW8 990108 13. The following items will require a modification to the permit: a. Any revision to the approved plans, regardless of size. b. Project name change. C. Transfer of ownership. d. Redesign or addition to the approved amount of built -upon area. e. Further subdivision of the project area. f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. In addition, the Director may determine that other revisions to the project should require a modification to the permit 14. 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. M. GENERAL CONDITIONS 1. This permit is not transferable. In the event there is a desire for the facilities to change ownership, or there is a name change of the Permittee, a formal permit request must be submitted to the Division of Water Quality accompanied by an application fee, 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. 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) which have 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 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 reissuance or termination does not stay any permit condition. Permit issued this the 3rd day of August, 1999. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION FOCam ` Kerr. T. Stevens, Director ? Division of Water Quality By Authority of the Environmental Management Commission Permit Number SWS 990108 FJ State Stormwater Management Systems Permit No. SW8 990108 First National Bank Building Stormwater Permit No. SW8 990108 Pender 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, 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 0 r State Stormwater Management Systems Permit No. SW8 990108 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. The outlet/bypass structure elevations are per the approved plan. 5. The outlet structure is located per the approved plans. 6. Trash rack is provided on the outlet/bypass structure. 7. All slopes are grassed with permanent vegetation. 8. Vegetated slopes are no steeper than 3:1. 9. The inlets are located per the approved plans and do not cause short-circuiting of the system. _`..10. The. permitted amounts of surface area and/or volume have been provided. 11. Required drawdown devices are correctly sized per the approved plans. 12. All required design depths are provided. 13. All required parts of the system are provided, such as a vegetated shelf, and a forebay. 14. The overall dimensions of the system, as shown on the approved plans, are provided. cc: NCDENR-DWQ Regional Office Rodney Scruggs, Pender County Building Inspector 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, WFORMATION 1. Applicants name (specify the name of the corporation, individual, etc. who owns the project): CHAP.LES 'E . WELLS 2. Print Owner/Signing Official's name and title (the person who is legally responsible for the facility and its compliance): Charles E. Wells (Member, Partner) 3. Mailing Address for person listed in item 2 above: 1640 N. C. Hwy. 53 West BurQaW State N. C. 28425 TeiephoneNumber. ( 910 ) 259-4070 4. Project Name (subdivision, facility, or establishment mane - should be consistent with project name on plans, specifications, letters, operation arA maintenance agreements, etc.): FIRST NATIONAL BAND BUILDING 5. Location of Facility (street address): 301 East Freemont Street Bu26AW 28425 Cmt1,; PE-h)DER 6. Directions to facility (from nearest major intersection): From the Pender County Court House take Freemont Street going East; subject lot will be one block East of the Court House at the intersection of Freemont Street and Cowan Street. 7. LadWe 3 4 0 3?)' oo" ° 5 ' 00 '� of facility 8. Contact person who can answer questions about the facility: Name_ I rY) H oN E.4 GtJ T T Telephone N=&er. 10 3 5 0 - 00 3 ffl. PIERM T DOORMATION- 1. Specify whether project is (check one):—=—V-- New -----Renewal —Modification 2. If this application is being submitted the result of a renewal or modification to an exis ' permit, list ft Wd tit nUU* es' : ft and its issue date (if ]mown) Form SWU-101 April 1998 Page I of 4 3.,'. Specify the type of project check one): Low Density _ _�— High Density Redevelop General Permit Other 4, Additional Project Requi ents (check applicable blanks): ____.CAMA'?VUjor 7Sedunentation/Erosion Control Tll. PROJECT INFORMATION —40 Vermit 1. Inthe space provided below, summarize how stormwater will be treated. Also attach a detailed narrative (one to two pages) descrilying stormwater management for the project. iA)er PonJD 2. Storn'water runoff from this project drains to the CPE FEA)z River basin. 3. Total Project Axe& l ' l CP acres 4. Pw0ct Built i 1ponArex % % 5. How many drainage bashes does the project have?__ 6. Complete the following information for each drainage basin. If there are more than two drainage basins in the project, attach an additional sheet with the information for each basins provided in the same format ens below. r1W IOUt NOW Recceiving Stream Name Receiv!n& Stream Class Drains Basin Area Ex tin rvious' Area 2, Pra DeedImpetviousW= 11 % Ie ou a Area (total) 1110 - `'� S� YY •6•'. s''t' �r .y �A � +a`j '.b.sZ;�'. ^ j''� 7n-site BuddM On -sate Streets f on -site P j G On -site Sidewalks 2 3 IV In Other on -site A Off -site 2, Total: j� �= intpe vious arm is defined as the built upon area iractudirtg, but not limited to, buildirW, roads, parking areas, side vlks, gravel areas, etc. 7. plow was the off -site impexvicass area iisteci above tiexived? C!CArl 5= 510EW A J+ F99ff81 !tT 51 WWA LX ?75 t M-MOB PA'tf i N 6 050 + C.OLUAt-J PA'V`i n16 2-47 New PAWK6 onr MEET1'+onrf 31790 + New PAveMeWT -oaf UWAO 51-70 -f- 1307 NEW' Ce'A.Nt✓12. IV. DEED R.ESTRIC P ONS AND PROTECTFW COVENANTS NAlt TS 1 g) 29s Deed restrictions and protective covenants are required to be recorded for all law density projects and all subdivisions prior to tlhe sale of any IoL Please see Attachment A for the specific itms that must be recorded Farm S'WU-101 April 199% Page 2 of 4 py.your signature below, you certify that the recorded deed restrictions and protective covenants for this project shall include all the item required by the permit, that the covenants will be binding an all parties and persons claming Lander tha= 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. AGENT AUTHORIZATION If you wish to designate submittal authority to another individual or firm so that they may provide information on your behalf, please complete this section: 1. . . De*aWd agent(ual orN EK GJ TT EN 6 N F-E,_121 N 6 CA Ma,g P 0]BOX 1503 (n 0: WILt�nr1J�"fbN staw N.C. 2g8 Phorr `l10 350-OTC 3l �c q10 350-O(v31 VI. SUB1V11'ITAL REQUIREMENTS This application package will not be accepted by the Division of Water Quality unless all of the applicable items are included with the submittaL 1. Please indicate that you have provided the following required information by signing your initials in the space provided next to each item. Anvlicant'i initials o Original and one copy of the Stormwater Management Permit Application Forces VJL r' • One copy of the applicable Supplement Form(s) for each BUT (see Attachment A) W e Permit application processing fee (see Attachment A) • Two copies of plans and specifications including o Detailed narrative description of stormwaW treabnent/management a Two copies of plans and specifications, including. - Development/Project name - Engineer and Firm - Legend - North arrow - Scale - Revision number & date - Mean high water lane - Dimensioned pro"/project boundary - Location snap with named streets or NCSR numbers - Original contours, proposed contours, spot elevations, finished floor elevations Details of roads, parking, cul-de-sacs, sidewalks, and curb and gutter Wetlands delineated, or a note on plans that none exist - Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations - Drainage basins delineated Vegetated buffers (where required) vac, AFMC'ANTS CERTNICATION 1, (print or t fpe ream of person listed in General Irr m adm item 2) Charles B. Wells certify that the information included on this permit application form is correct, that the project will be constructed in conf,V'"o the approved plans, that the deed restrictions sat accordance with Attachment A of this form will beit�;�'NCAC condition, and that to the best of my knowledge the proposed project c 21'd .1d0U. December 29 1 1998 gam; Member Partner Form SWU-101 April 1998 Page 3 of 4 AT rACITIMIFNT A 1. Deed Itedrialian Li ngmge The following statements must be recorded for all low density projects and for all projects that involve the subdivision and selling of lots or outparcels: 1. No more than square feet of any lot, including that portion of the right-of-way between the edge of pavement and the front tot line, shall be covered by impervious structures including asphalt, gravel, concrete, brick, stone, slate or similar material but not including mood decking or the surface of swimming pools. This covenant is intended to insure continued compliance with the stori nwater permit issued by the State of North Carolina. The covenant may not be changed or deleted without the consent of the State. 2. No one may fill in, pipe, or after any roadside swale except as necessary to provide a minimum driveway crossing. NOTE: If lot sixes vary significantly, the owner/developer must provide an attachment listing each lot number, size and the allowable built -upon area for each lot_ For commercial projects that have outparcels or future development the following statements must also be recorded: 3. The connection from the ouiparcel or facture area into the stormwater system must be made into the forebay such that short-circuiting of the system does not occur. 4. All built -upon area from the outparcel or future development must be directed into the permitted stormwater control system. 5. Built -upon area in excess of the permitted amount will require a permit modification prior to construction. For curb outlet systems, the following statement in addition to items I and 2 above must be recorded: 6. No one may pipe, fill in or alter any designated I00 foot long grassed swale used to meet the requirements of NCAC 2H .1008(g). 2. Supplement Farms The applicable supplement forms) listed below must be submitted for each BMP specified for this project: Forst SWL1-102 Wet Detention Basin Supplement Form SWU 103 Infiltration Basin Supplement Form SWU-104 Low Density Supplement Form SWU-105 Club Outlet System Supplement Form SVM-106 Off -Site System Supplement Form SWU-107 Underground Infiltration Trench Supplement Form SWU-108 Neuse River Basin Nutrient Management Strategy Supplement 3. Permit Application Fees (check made payable to NCDFNR and submitted to the appropriate Regional Office) Type of Permit Low Density High Density Other Director's Certification General Permit New, Modification, or Late R ewal 85 $225 $350 $50 Form SWU-101 April 1998 Page 4 of 4 Timely Renewal Without Modification n/a $225 n/a n/a n/a Permit 'No. .S W g tJq a) o State of North Carolina Department of Environment and Natural Resources Division of Water- Quality STOR.MWATER MANAOEMENT PERMIT APPLICATION FORM WET DETENTION BASIN SUPPLEMENT ENS' Thin forne may he phorocopmd for use ass an ongu=1 1DWoStormwater Managerraent Plan Review: AA c�m opTetestorrawwater management plan submittal includes a wet detention basin supplement for e ach design calculations, plans and specifications showing all basin and outlet structure details, and a signed. a basin, notarized operation and maintenance agreement. L PROJECT INFORKATION (please complete the following information).. Project Name : 125T IJATIDNA L gA-N'K BUILD11y'% tanact Person•J-1 1Hb1\_1 0 GUPho ne .,..,..�.. �,.�,,..._.. Number (G f 0) a5l7 — 0 (0 3J For projects with multiple basins, specify which basin this wonksheet applies to: Basin Bottom Elevation � 351 00 ft. (average elevation of the floor of the basin) Permanent Pool Elevation 3 , 0 0 ft. (elevation of'the orifice) emporguy Pool Elevation Q, QQ _ ft. (elevation of the discharge structure overflow) PeTmanent Pool Surface Area. LF (0 $ sq. ft, (water surface area at the orifice elevation) drainage Arra 1 9 — ac. (on -sate and off -site drainage to the basin) Impervious Area , 90 _ _ — ac. (can -site and off -site drainage to the basin) Permanent Pool Volume i"� 191 r] cu, ft. (combined volume ofmain basin and forebay) Tzmporary Pool Volume 38 3 cu. ft. (voiuint: detained above the permanent pool) Forebay Volume 013 cu. ft. S A/D.Al used. b µq (surface area to drainage area ratio) Diameter of Orifice in. Design TSS Removal Q h % (85% TSS removal rcxluimd, see item k below) ]ft- RF-QUIRED ITEMS CHECKLIST The hallowing checklist outlines design requirements per the Stormwata Best Management Practices Manual (N.C. Department of Environment, Health and Natural Resources, November 1995) and Administrative Code Section: 15 A NCAC 211.1008. Initial in the space providers to indicate the following design. requixcments have been met and supporting documentation is attached. If the applicant has designated an agent in the Stomawater Mwmgement perrauat Application Form, the agent may initial below. If a requirement has not been .met, attach justification. Farm SWU-lot Rev 1/August 1998 Page 1 of L The temporary pool controls runoff from the 1 inch storm event. a. The basin length to width ratio is greater than 3:1. The basin side slopes above the permanent pool are no steeper than 3:1. k A submerged and vegetated perimeter shelf at less than 6:1 is provided (show detail). :. Vegetation above the permanent pool elevation is specified. f: An emergency drain is provided to empty the basin. (CA0 etr ft- BLE R VM 0) reaue�A6e � g. The permanent pool depth is between 3 and; feet (required minimum of 3 feet). a. The temporary pool drays down in 2 to 5 days. .. A trash rack is provided for both the overflow and orifice. The forebay volume is approximately equal to 20% of the total basin volume. c. Sediment storage is provided in the permanent pool. IV/ tt i, a ju-foot vegetative filter is provided at the outlets (include erosive flow calculations) m. Recorded drainage easement for each basin including access to clearest right-of-way. n. A site specific operation and maintenance (O&M) plats is provided. o. A vegetation management/mowing schedule is provided in the O&M plan. p. Semi-annual inspections are specified in the O&M plan. q. A debris check to be performed after every storm event is specified in the O&M plan. r. Specific clean -out benchmarks are specified in the O&M plan (elevation or depth). s. A legally responsible party is designated in the O&M plan3 (include name and title). t. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified to be performed prior to use as a wet detention basin. Footnotes: 1 When using the Division SSA tables, the comect $A/DA ratio for permanent pool sizing should be computed based upm the actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the correct value for non- standard table entries. 2 The requirement for a vegetative filter may be waived if the wet detention basin is designed to meet 90°10 TSS removal. 3 The legally responsible party 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. IIIe WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT - kie wet detention basin system is defined as the wet detentions basks, forebay, non-integrated pretreatment systems (pretreatment other than forebays), and the vegetated filter if one is provided. This system (check one) 0 does fd d not incorporate a vegetated Filter. This systems (check one) ® does 'does not incorporate non-integrmted pretmtmeant. Maintenance activities shall be performs as follows: 1. After every significant runoff producing rainfall event and at least monthly: Form SWU-102 Rev 1/August 1999 Page 2 of 3 a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation, grass cover, and general condition. b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within 2 to 5 days. 2. Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, mow vegetative cover to maintain a maximum height of six inches, and remove trash as needed. 3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain proper functioning. 4. Remove accumulated sediment from the wet detention basin system senu-annually or when depth is reduced to 75% of the original design depth. Removed sediment shall be disposed of in an appropriate manner and shall not be handled in a manner that will adversely impact water quality (i.e. stockpiling near a wet detention basin or stream, etc.). The original design depth is: If d 0 F7-, The sediment removal benchmark depth is: 3, 0 5. Remove cattails and other indigenous wetland plants when they cover 75% of the basin surface. These plants shall be encouraged to grow along the basin perimeter. 6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through the emergency drain shall be minimized to the maximum extent practical. 7. All components of the wet detention basin system shall be maintained in good working order. I acknowledge and agree by my signature below that I am responsible for the performance of the above maintenance procedures. I agree to notify DWQ of any problems with the system or changes in the name of the project, responsible party, or address. Print name: CHARMS E. WELLS Address: 1640 N. C. Hwy. 53 West Bur-Cgw, X—C. 28425 Phone: Title: Signature: 910-259-4070 Date: December 29, 1998— - - I, Leola Loyd , a Notary Public for the State of North Carolina County of Pender , do hereby certify that Charles E. Wells personally appeared before me this 29th day of December . 19 98 , and acknowledge the due execution of the forgoing infiltration system maintenance requirements. Witness my hand and official seal, SEAL LEOLA LOYD MY co fission expires Janua 11 2001 0 NOTARY PUBUC PENDER COUNTY, NC FOM MU-102 Rev 1/August 1998 Page 3 of 3 State of North Carolina Department of Environment and Natural Resources Wilmington Regional Office James B. Hunt, Jr., Governor Wayne McDevitt, Secretary Division of Water Quality June 18, 1999 Mr. Jim Honeycutt, P.E. Honeycutt Engineering Co. PO Box 15036 Wilmington, NC 28408 jkw wxiiA A NCDENR NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES Subiect: ACKNOWLEDGEMENT OF RECEIPT AND REQUEST FOR ADDITIONAL INFORMATION Stormwater Project No. SW8 990108 First National Bank Building Pender County Dear Mr. Honeycutt: The Wilmington Regional Office received the resubmittal of Stormwater Management Permit Plans for First National Bank Building on April 27, 1999. A preliminary review of that information has determined that the application is not complete. The following information is needed to continue the stormwater review: 1. The original application and supplement form should have been sent with my additional information letter dated April 6, 1999. However since no new application and supplement form containing the changes from the original submittal were included in the April 27, 1999 package, I am including the originals now for changes. As soon as these changes are received they will be reviewed and the project can be permitted. Please note that this request for additional information is in response to a preliminary review. The requested information should be received by this Office prior to July 18, 1999, or the application will be returned as incomplete. The return of a project will necessitate resubmittal of all required items, including the application fee. The Division is allowed 90 days from the receipt of a completed application to issue the permit. If you have any questions concerning this matter please feel free to call me at (910) 395-3900. Sincerely, Scott A. Vinson Environmental Engineer RSS/sav: S:1WQSISTORMWATIADDINF01990108.APR cc: Wilmington Regional Office Charles E. Wells 127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone 910-395-3900 FAX 910-350-2004 An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper Excise Tax $OM F11-ED BK 148OPG3-D9 99 JUIN 10 PH 4: 15 JO' CE i�i. Slr'/ICEGOOD RE'ISTER OF DEEDS PE'tGER COUNTY, NC Rwordittg Tim, Book and Pape Tax Lot No. J071066 001 Parcel Identifier No. by =County on the _ day of 14 by Mail after recording to Moore & Kenan, P. O. Box 957, Burgaw, NC 28425 This instrument was prepared by Robert C. Kenan Jr. Brief Description for the index NORTH CAROLINA GENERAL WARRANTY DEED THIS DEED made this May 11 1999, by and between GRANTOR I GRANTEE LAIUVRENCE, FRANKIM F'07%—,H and wife, AMY W. FUTCH; RONALD D. GRAVES (Divorced); and CHARLES K WELLS and wife, ETHEL BANE WELLS PENDER DEVELOPERS, L,L,C. A North Carolina Limited Liability Company Enter in appropriate block far emb party; nice, addmµ and, lrepp gvistg ebaraeter of entity. ea.. ammaden m evnre,stde The designation Grantor and Grantee as used herein shall include said parries, their heirs, successors, and assigns, and shall include singular, plural, masculine, feminine or neuter as required by context. WITNESSEM, that the Grantor, for a valuable consideration paid by the Grantee, the receipt of which is hereby acknowledged, has and by these presents does grant, bargain, sell and convey unto the Grantee in fee simple, all that certain lot or parcel of land situated in the City of Burgaw, Burgaw Township, PENDER County, North Carolina and more particularly described as follows: Lying and being in the Town of Burgaw, and BEGINNING at the intersection of the Eastern line of Cowan Street with the Southern line of Fremont Street, and running thence with the Southernn line of Fremont Street North 73 degrees 30 minutes East to the run of Osgood Branch Canal; thence up the run of said Canal in a Southwesterly direction to the Eastern line of Cowan Street; thence with the Eastern line of Cowan Street North 16 degrees 30 minutes lot of BEGINNING. 'if aob s Qet ot1 ice 16. So � DeeaS teT f •RQ 6 N.C. Her Assoc. Porte No. 3A O 1976, Revised O 1971 Printed by Agm avant with the N.C. Bar Assm. 4003 The i11oPertl' hw1nabove d0"11 red was acquired by Grantor by insftment recorded in Book 1271, Page 52. A map showing the above described property is relwrded in , . RR pp G To HAVE AND TO HOLD the aforesaid lot or parcel of land and all privileges and appurtenances tSt U Pf f 0 simple. kmgtng to the Grantee in fee And the Grantor covenants with the Grantee, that Grantor is seized Of the premises in The simple, has the right to convey the same in fee simple, that title is marketable and free and clear of all encumbrances, and that Grantor will Warrant and defend the title against the lawfitl claims of all persona whomsoever xcent for the exceptions heminai}er stated. Tide to the property hereinabove described is subject to the following exceptions: IN WITNESS Wl , the Oranbr has hereunto set his hard sod seal, or if cwporete, has caused this Itahunnerrt to be signed in its caPntrate name by its duly authorized of ocis and its sed to be hereunto afted by authority of }hoard ofnirectom. The day and year fbat above wviltar. (Carpante Noma} President ATTEST: Seem ry(Carpoare sago (Corpaere Nano) President ATTEST: Secretary (earpaara Sad) Met Jane Walk (SEAL) (SEAL) (SEAL) T' - - -OFFitALS� Ecommission CAROLINA, PENDBRCounty. dersigred, a Notary Public of the County end State aforesaid, artily that Lawry ce Fnaklla get ch and wIk Amy W. Fatek �. KENAN, J R., Personally Appeared before me this day and acknowledged die ion of the fora NOTARY PUBLIC seal, this ID day e<.ltras.,19". Bo ea►. Witness My hand and offici. MENDER COUNTY, NO expires:GIS&I-3 Line Notary Pubic OFnCI& SMJJR. NORTH CAROLINA, PENDER County. 4 the undersigned, a Notary Public ofthe County and sate afbressid, certify cut $g 1� Orenntor, �gy aPPested Indare rr ROOER S? KENANthis day and acknowledged the c,=tIon of the forego' uutrtnrt Witneea my hand and oflieid s mNOTARY PUBLICI999. " OWWWPENDER COUNTY, My cammiasionn expires:. �8/Lyp3 Notary Public NORTH CAROLINA, PENDER County, DIRAOLB-9ET1 UAL theundersigned,allotary Public of the County and state aforesaid, artily that an el an Orentors anally appared before ore ihle day and acLroowkda executjodof the foregmng inrstrumaL Witness my hand anrd oincial stmpr KENAN, JR. thb[aeayoPUBLICOUNTY, NC eommia31011 expires: Notary Public The foregoing Certificate(s) of Isfare certified to be correct This instrument and this oatifiaa ere duly registered at the datea nd timeand llil o an�a�rce nn,..y9......_ a1.The Pape Inereof. PAY TO THE ORDER C N. C. Date: t a Project Name: Pro ect No:/e Y County - Project The Wilmington Regionalf�i Rthe Division of Water enewnl Application and on received your Stormwat You will be notified if �� contact any member otion is needed - the St rmwater have any questions, p review staff in the Wilmington Regiorml office at (910) 796-7215. Janet Simmons Administrative Assistant Srt.rit r°6�.°`p .tent See 3a rk�o. air tails. H_ 1222 PENDER DEVELOPERS, LLC PH. 910459AO70 86-134/5311 1sw NC }iIGHWAY 83 WEST 83 17, 2009 BURGAW, NC 28M DATE FebZl]arV &-mr; Yrwn ant and Natural ResOuzces 505. 00 t`xve niuuuc.i - FNB BOOTHZ &ST E FREEIu1GNT STREET OFFC FOR e' 11@ 00 12 2 2 its 40 5 3 0 13 4 L 1: 831L&aS63118 OLLARS 8 HONEYCUTT ENGINEERING CO. CONSULTING ENGINEERS 610 HIDDEN VALLEY ROAD WILMINGTON, NC 28409 910-350-0631 April 22, 1999 State of North Carolina Department of Environment and Natural Resources Division of Environmental Management Water Quality Section ATTN: Scott A. Vinson Re: Stormwater Project No. SW8 990108 First National Bank Building Pander County Dear Mr. Vinson: RECEIVED APR 2 ,f 1999 BY. Enclosed are two copies of the site plan and one copy of the calculations for your review. I am addressing your comments as follows: 1. The runoff from the additional street parking on Cowan and Fremont Streets has been redirected toward the pond. The new calculations and plans will show the changes. The narrative was revised to reflect this change. 2. Details have been included on the plans. 3. A larger discharge pipe with a cap and drilled orifice has been shown on the plans as suggested. 4. A note stating that there are no wetlands on site has been included on plans. If you have any questions regarding this project, please give us a call, Sincerely, James R. Bone4att4p" ,Jr. P.E. Drainage Calculations for First National Bank, 6urgaw, NC Page i Project $039 12/30/98 50762 Revised 4/22/99 A site .= A site = 1.1653 acres ...total area 43560 A , _ 18574 A = 0.426 ...that area between the roe line and the center of ofisite ' ` 43560 offsite property dy the two streets that will be routed to the pond A total := A site + A offsits A total = 1.5917 acres ..total drainage area A _ 901 + 775 + 4056 + 3780 + 2306 + 5170 + 1307 paved, - 43560 A paved1 z 0.42 ... that paved area between the property line and the center of the two streets that will be routed to the pond (including existing and new pavement) A paved 15753 A paved = 0•362 acres ...paved and gravel areas 43560 A side 723 A side = 0.017 acres ... sidewalk areas 43560 A bld 4740 A bid 0.109 acres ....building area g 43560 g A imp : = A paved + A side + A paved, A imp = 0.79$ acres - total impervious area excl. bldgs A other A total A imp - A bidg A other = 0.685 C pro := .30 ...pre -development C C bldg 1.00 C imp .95 ...paved area C A other A imp A Bldg C camp �= C pre" q total + C imp A total + C bldg A total C comp ' 0.67 ...composite C (post -development} L := 400 ft ...hydraulic length H := 5 ft ...height H3ue _ {}.s c T 128 T c = 4.26 ...time of concentration -fl `&1"I-/ f('-' a Drainage Calculations for First National Bank, Burgaw, NC T c 5 ...use 5 minutes minimum Intensity -Duration -Frequency Relationships: Values of G and H° R G H 10 252 30 50 338 33 R= Return Period *Source: Master Drainage Plan for City of Wilmington T := T c Time of duration G10:=252 H10:=30 110. H G 10 110 = 7.2 in/hr 10 T G 50 := 338 H 50 : = 33 150 := G 50 150 = 8.885 In/hr H 50 T) Compute runoff rates: ...10 year storm intensity ..50 year storm C pre C pre-1 10. CA total) C pre = 3.44 cfs ...pre -development runoff from 10 yr. storm C 10 C comp 110- (A total Q 10 = 7.72 cfs ...post -development discharge rate to pond from 10 yr. storm a 50 : = C comp' 150- (A total) Q 50 = 9.54 cfs ...post -development discharge rate to pond from 50 yr. storm Volume of runoff from developed area of site: P := 4.8 in Soil type = Urban Land CN := 63 Curve No. 8 := CHI - 10 S = 5.873 R depth = (P - 0.2• S )2 R depth = 1.384 in. ...runoff depth P+.8•S Page 2 Drainage Calculations for First National Bank, Burgaw, NO Page 3 R vol R depth' (A total) -43560' 12 R vol = 7995 cubic feet ...total runoff volume R depth' (A total) 1 43560. 1 �. p 1.39 Q 1011 (12) 60 C 1 T p - 12.41 ...time to peak flow Now compute for fifty year storm: P 50 := 6A (P 50 - 0.2•S)2 R50 depth. = P , + 8 S R50 depth = 2.46 R50 Vol R50 depth- (A total' 43560.12 T50 := R50 depth- {A total 1 .43560. 1 p 1.39 CQ 50 12) 60 T50 p = 17.87 ..time to peak flow In. ...runoff depth R50 Vol = 14215 cubic feet Determine size of pond without vegetative filter: depth := 4.0 ft.1we-5 3 �aS IMP% : A imp i A bldg IMP% - 0.5598 A total DA CA total. 43560 SA req : _ ( IMP) • DA SA req. a 34W sq.ft. IMP% 50 : _ .043 IMP% 60 = .053 i-0..1 x. vyi:= 0 IMP% 50 0 MP% 60 vx.:= x IMP := linterp(vx,vy, IMP%-100) IMP = 0.049985 ...Required surface area Drainage Calculations for first National Bank, Burgaw, NC i 102 ..length of permanent pool w :_ (depth - 2)•2.5.2 + 2.2.6 w = 34 ...minimum width of permanent pool w 34 ft. - width chosen 1 = 3 ...must be =4 - O.K. w ..40 SA prov I'w SA prov w 3468 -••sq-ft• of surface area provided must be >=SA Mq = 3466 sq.ft. Determine storage volume required for treatment of first inch of runoff: Ccomp =0.674 V 1 - (A total).43560• C comp V = 3M cubic feet of storage required III WA-2 A &A boo Solve for depth ' " to provide required storage: d : = 1.5 ...guess value f(d) := 1-w + (I + 6.2)-(w + 6-d) d ...function of d for rectangular pond w13A side slopes g(d) := V d := root((f(d) - g(d)),d) d = 1 It. - depth required to provide required storage for 1 inch with site fully developed V Q 2day _2.24.60.60 v Q 5day ' = 5. 24. 60. 00 g 32.2 Q 2d6y = 0.0225 cfs ...Max discharge for 2 day drawdown Q 5day = 0.009 cfs ...Max discharge for 5 day drawdown C d := .6 ...orifice coefficient h 2 h = 0.5 fi ...avg. head A odiice Q 2day A orifice = 0.007 Square ft. C d-(2.g-h).s Page 4 Drainage Calculations for first National Bank, Burgaw, NC .5 D .= 4. orifice 12 3.14 C Sday = 0.009 cis A orifice ; _ Q Sday Cd.(2_g.b).s D = 1.102 in. - for 2 day drawdown A orifice = 0.003 Square ft. 5 3.14 )' D := (4- A orifice ,12 D - 0.697 in - for 5 day drawdown Use..75 Inch diameter &g in routing chart '11,fgM•nS a Determine volume of permanent pool In order to size forebay: } . o.. a Ai : = k 1.. 8 ...area of contour 35.00 ...area of contour 35.50 ...area of contour 36.00 ...area of contour 36.50 ...area of contour 37.00 ...area of contour 37.50 ...area of contour 38.00 ...area of contour 38.50 ...area of contour 39.00 DI corresponding depth from contour above K-1 +Ak Vk := 2 •Dk ...incremental volume V i and : = IV ...total volume equals the sum of the incremental volumes V pond - 4817 -f ...total volume in permanent pool I wo I -1 t6 -14f V required : = •201V pond ...forebay volume equals 20% of total pool volume V required 0 963 •f ...cu.ft. required in forebay 2rw. s 343M Page 5 Drainage Calculations for First National Bank, Burgaw, NC Page 6 Determine volume In forebay: m:=0..8 n:=1..8 am dm corresponding depth from contour above ...area of contour 35.00 ...area of contour 35.50 ...area of contour 36.00 ...area of contour 36.50 ...area of contour 37.00 ...area of contour 37.50 ...area of contour 38.00 ...area of contour 38.50 ...area of contour 39.00 Vn := an_ 2+ an. dn ...incremental volume V forebay : _ �v ...total volume in forebay equals the sum of the incremental volumes V forebay =1013 -ft? ...total volume in forebay must be >= V required = 963 •ft Check capacity of emergency spillway to pass 50 year peak flow: L : = 9 It ...Length of weir H 6 ft ...Driving head C w 3.0 ...Weir coefficient 12 Q C ay L- H1.5 ...Weir capacity Q = 9.65 must be => Q r6o = 9.54 OX Using a 15" barrel, check velocity at outlet from pond: D := 1.25 ft q := 2.64 cfs ...max barrel discharge from routing sheets A %' D2 = 1.227 pipe 4 Pipe V ouflet:= q V outlet = 2.15 fps Drainage Calculations for First National Bank, Burgaw, NC Page 7 Determine outlet apron dimensions and riprap size for discharge from pond: From Figure 8.06.b.1 and figure 8.06.b.2 choose Zone 1. L a := 4-D L a = 5 ft- minimum length of apron from figure BMW W : = 3- D W = 3.75 ft - minimum width of apron from figure BMW die : = 6 diameter of stone in inches d max := 1.5-dia d max = 9 max. stone diameter t := 14 in. min. thickness of apron in inches Determine outlet apron dimensions and riprap size for discharge to pond V := 3.6 fps - from pipe sizing chart D : = 1.25 ft From Figure 8.06.b.1 and Figure 8.06.b.2 choose Zone 1. L a := 4-D L a 05 ft - minimum length of apron from figure 8.06W W : = 3- D W = 3.75 ft - minimum width of apron from figure 8.06b2 dia : = 6 diameter of stone in inches d max 1.5-dia d max = 9 max. stone diameter t := 14 in. min. thickness of apron in inches Size new pipe along Cowan Street: d := 1.5 ft. ...diameter of existing pipe discharging into ditch headwater := 45.89 - 41.20 headwater = 4.69 ft. hwd := headwater hwd 4 3.127 d $ pipe := 18 cis - From "Hydraulic Design of Highway Culverts", a 18" pipe with headwater depth of 4.69' Size new pipe to handle this flow plus flow from street and additional parking. See pipe sizing chart for pipe size Determine outlet apron dimensions and riprap size for pipe outlet: V : = 7.8 fps - from pipe sizing chart D:=2 ft From Figure 8.06.b.1 and Figure 8.06.b.2 choose Zone 2. L a := 6-0 L a = 12 ft - minimum length of apron from figure 8.06b2 W : = 3- D W = 6 fit - minimum width of apron from figure 8.06b2 dia : = 6 diameter of stone in inches d max 1.5-dia d max = 9 max. stone diameter t : = 14 in. min. thickness of apron in inches Drainage Calculations for First National Bank, Burgaw, NC Page 8 Size swale over new pipe along Cowan Street : Q : = 1.3 ..flow in channel in cfs (from pipe routing sheet) B := 0 ...bottom width of channel (ft) M : = 5 ...side slopes s := 40.96 -38.00 s - 0.0154 ...channel slope n : = 0.135 ...roughness coeff. for retardance factor "D" (must be consistent with depth of flow) Z req :_ - Q-n Z req a 0.949 ...Z required (from R.Malcolm) 1.49-I y :_ .64 ...depth of flow (ft.) - vary this number until Zav (below) is approx. equal to Z.req (above) - may also have to vary n above to be consistent with this depth A := B•y + M• (y)2 ...Cross -sectional area of flow (sq.ft.) at depth y P := B + 2-y- 1 + M2 ...Wetted perimeter (ft.) at depth y R : _ A ...Hydraulic radius (ft.) at depth y 2 Z av : = A. (R) 3 Z ev = 0.946 ...Z available Now compute velocity at this depth: 2 1 V 1.49 R3. 62 V = 0.633 fps n V-R = 0.199 Using this value, choose n from Figure 8.05c page 8.05.7 and adjust n above until consistent From Table 8.05a page 8.05A V P := 4.5 fps - Permissible Velocity for channels lined with specified with slopes 0-4.5% in easily erodible non -plastic soils Sil3ce V<Vp, channel lining OX Size new pipe along Fremont Street: Size new pipe to handle flow from street and additional parking. See pipe sizing chart for pipe size Determine outlet apron dimensions and riprap size for pipe outlet: Drainage Calculations for First National Bank, Burgaw, NC Page 9 V : = 13.6 fps -from pipe sizing chart D := 1.25 ft From Figure 8.06.b.1 and Figure 8.06.b.2 choose Zone 2. L a := 6- D L a = 7.5 ft - minimum length of apron from figure 8.06b2 W : = 3• D W m 3.75 ft - minimum width of apron from figure 8.O6b2 dia := 6 diameter of stone in inches d max 1.5-dia d max' 9 max. stone diameter t := 18 in. min. thickness of apron in inches REFER TO ATTACHED SHEETS FOR ROUTING RESULTS Note: References to chart nos., table nos., and page nos. refer to Erosion and Sediment Control Planning and Design Manual unless noted otherwise r� A �u� 1 :111 GIII9 090111�99 ioi n III W N (A if a w w oc FYI q� ROUTING SWEETS FOR 10 YEAR STORM S Z CONTOUR INCR ACCUM CONTOUR AREA VOL VOL STAGE In S In Z Z est 39.00 3468 0 0 0.00 0.00 39.50 3885 1838 1838 0.50 7.5168 -0.6931 0.52 40.00 4320 2051 3890 1.00 8.2660 0.0000 0.98 40.50 4773 2273 6163 1.50 8.7263 0.4055 1.45 41.00 5244 2504 8667 2.00 9.0673 0.6931 1.94 41.50 5733 2744 11411 2.50 9.3424 0.9163 2.46 42.00 6240 2993 14405 3.00 9.5753 1.0986 3.00 42.50 6785 3251 17656 3.50 9.7788 1.2528 3.56 43.00 7308 3518 21174 4.00 9.9605 1.3863 4.16 Regression Output: Constant 8.2860479 Ks= 3968 Std Err of Y Est 0.03596W b= 1.17 R Squared 0.9983794 No. of Observations 8 X Coefficient(s) 1.1749902 Std Err of Coef. 0.0193264 STAGE -DISCHARGE FOR RISER/BARREL SPILLWAY WITH EMERGENCY WEIR RISER/BARREL: 7:6 Dr = 3.516 Area of grate openings Etop = 40.00 Elev. top riser (ft) Cwr - 3 Riser weir coefficient Cdr = 0.59 Riser orifice coefficient Do - 0.75 Orifice dia.(In) Einv - 39.00 Elev Inv. orifice (ft) Co = 0.6 Orifice coeff. Db - 1.25 ft. Binv w 37.00 Barrel invert Cdb 0.6 ;MERGENCY WEIR: Cw = 3 Weir coefficient Ecr = 40.30 Elev. weir crest (ft) Lw = 6 Weir length (ft) 1 2 3 4 5 6 7 8 Stage Riser Riser Barrel .75" Princ. Emerg. Total (weir) (orifice) orifice Spillway Weir Outflow [ft) [afsj lcrsa Cots) Ids) [cl's) [cfs3 Ids] 39.00 0.00 0.00 0.00 0.000 0.00 0.00 0.00 39.20 0.00 0.00 0.00 0.006 0.01 0.00 0.01 39.40 0.00 0.00 0.00 0.009 0.01 0.00 0.02 39.60 0.00 0.00 0.00 0.011 0.01 0.00 0.02 39.80 0.00 0.00 0.00 0.013 0.01 0.00 0.03 40.00 0.00 0.00 10.23 0.015 0.00 0.00 0.01 40.20 2.01 7.44 10.56 0.016 2.01 0.00 2.03 40.40 5.69 10.53 10.89 0.017 5.69 0.57 8.28 40.60 10.46 12.89 11.21 0.018 10.46 2.96 13.43 40,80 16.10 14.89 11.51 0.020 11.51 6.38 17.90 41.00 22.50 16.65 11.01 0.021 11.81 10.64 22.37 41.20 29.58 18.24 12.10 0.022 12.10 15.37 27.49 41.40 37.27 19.70 12.39 0,023 12.39 20.77 33.18 41.60 45.54 21.08 12.67 0.0244 12.67 26.68 39.37 41.80 54.34 22.33 12.94 0.025 12.94 33.07 46.03 42.00 63.64 23.54 13.21 0.025 13.21 39.90 53.13 42.20 73.42 24.69 13.47 0.026 13.47 47.14 60.64 O O N O O q V Q N O m N co O 3E�21tlN�Siq N C GD 9 CHAINSAW ROUTING Input data: Cap= 7.72 RESULTS: Tp= 12.4 OUTFLOW PEAK-- 3.34 MAX STAGE= 40.28 dT= 1.2 Ks= 3968 b= 1.17 7.5 Etop = 40.00 Top of riser Dr = 3.518 Area of grate openings Db= 1.25 Binv= 37.00 N= 1 No. of orifices Cd= 0.6 Orifice coeff. D= 0.75 Dia. of orifice Z1= 39.00 Inv. elevation Cw= 3 Weir Coefficient L= 6 Length of overflow weir Zcr= 40.30 Elev. of overflow weir 1 2 3 TIME INFLOW STORAGE [min] [cfsl ICU ft] 4 5 6 7 8 STAGE OUTFLOW 0.75" ORI. WEIR RISER/ [ft] [cfs] [cgs] [cfs] BARREL 0 0.00 0 39.00 0.00 0.000 0.00 0.00 1.2 0.18 0 39.00 0.00 0.000 0.00 0.00 2.4 0.69 13 39.01 0.00 0.000 0.00 0.00 3.6 1.50 62 39.03 0.00 0.001 0.00 0.00 4.8 2.52 170 39.07 0.00 0.003 0.00 0.00 6 3.66 351 39.13 0.00 0.005 0.00 0.00 7.2 4.82 614 39.20 0.01 0.006 0.00 0.00 8.4 5.90 961 39.30 0.01 0.008 0.00 0.00 9.6 6.78 1385 39.41 0.01 0.009 0.00 0.00 10.8 7.40 1873 39.53 0.01 0.010 0.00 0.00 12 7.70 2405 39.65 0.01 0.012 0.00 0.00 13.2 7.64 2968 39.78 0.01 0.013 0.00 0.00 14.4 7.24 3508 39.90 0.01 0.014 0.00 0.00 15.6 6.54 4028 40.01 0.05 0.015 0.00 0.03 16.8 5.77 4495 40.11 0.86 0.015 0.00 0.84 18 5.08 4849 40.19 1.82 0.016 0.00 1.80 19.2 4.48 5084 40.23 2.57 0.016 0.00 2.56 20.4 3.95 5221 40.26 3.05 0.016 0.00 3.04 21.6 3.49 5286 40.28 3.29 0.016 0.00 3.27 22.8 3.07 5300 40.28 3.34 0.016 0.00 3.32 24 2.71 5281 40.28 3.27 0.016 0.00 3.25 25.2 2.39 5241 4027 3.12 0.016 0.00 3.11 26.4 2.11 5188 40.26 2.94 0.016 0.00 2.92 27.6 1.86 5129 40.24 2.73 0.016 0.00 2.71 28.8 1.64 5066 40.23 2.52 0.016 0.00 2.50 30 1.45 5003 40.22 2.31 0.016 0.00 2.29 31.2 1.28 4941 40.21 2.11 0.016 0.00 2.09 32.4 1.12 4881 40.19 1.92 0.016 0.00 1.90 33.6 0.99 4824 40.18 1.75 0.016 0.00 1.73 34.8 0.87 4770 40.17 1.59 0.016 0.00 1.57 36 0.77 4719 40.16 1.44 0.016 0.00 1.42 37.2 0.68 4670 40.15 1.31 0.016 0.00 1.29 38.4 0.60 4825 40.14 1.19 0.016 0.00 1.17 39.6 0.53 4583 40.13 1.08 0.015 0.00 1.06 40.8 0.47 4544 40.12 0.98 0.015 0.00 0.96 42 0.41 4507 40.11 0.89 0.015 0.00 0.87 43.2 0.36 4473 40.11 0.81 0.016 0.00 0.79 44.4 0.32 4441 40.10 0.73 0.015 0.00 0.72 45.6 0.28 4411 40.09 0.67 0.015 0.00 0.65 46.8 0.25 4384 40.09 0.61 0.015 0.00 0.59 48 0.22 4358 40.08 0.65 0.015 0.00 0.54 49.2 0.19 4334 40.08 0.50 0.015 0.00 0.49 50.4 0.17 4311 40.07 0.46 0.015 0.00 0.45 51,6 0.15 4291 40.07 0.42 0.015 0.00 0.41 52.8 0.13 4271 40.06 0.38 0.015 0.00 0.37 54 0.12 4263 40.06 0.35 0.015 0.00 0.34 55.2 0.10 4236 40.06 0.32 0.016 0.00 0.31 1 2 3 4 5 6 7 8 TIME INFLOW STORAGE STAGE OUTFLOW 0.75" ORI. WEIR RISER/ [min] [ds] ICU ft] Iftl Iofsl Ill [Cis] BARREL 56A 0.09 4220 40.05 0.30 0.015 0.00 0.28 57.6 0.08 4205 40.05 0.27 0.015 0.00 0.26 58.8 0.07 4192 40.06 0.25 0.015 0.00 0.23 60 0.06 4179 40.05 0.23 0.015 0.00 0.21 70 0.02 4078 40.02 0.10 0,015 0.00 0.08 80 0.01 4034 40.01 0.05 0.015 0.00 0.04 90 0.00 4007 40.01 0.03 0.016 0.00 0.02 100 0.00 3990 40.00 0.02 0.015 0.00 0.01 110 0.00 3977 40.00 0.02 0.015 0.00 0.00 120 0.00 3968 40.00 0,01 0.015 0.00 0.00 130 0.00 3959 40.00 0.01 0,015 0.00 0.00 140 0.00 3950 40.00 0.01 0.015 0.00 0.00 150 0.00 3942 39.99 0.01 0.014 0.00 0.00 160 0.00 3933 39.99 0.01 0.014 0.00 0.00 170 0.00 3924 39.99 0.01 0.014 0.00 0.00 180 0.00 3915 39.99 0.01 0.014 0.00 0.00 190 0.00 3907 39.99 0.01 0.014 0.00 0.00 200 0.00 3898 39.98 0.01 0.014 0.00 0.00 210 0.00 3889 39.98 0.01 0.014 0.00 0.00 220 0.00 $881 39.98 0.01 0.014 0.00 0.00 230 0.00 3872 39.98 0.01 0.014 0.00 0.00 240 0.00 3864 39.98 0.01 0.014 0.00 0.00 250 0.00 3855 39.98 0.01 0.014 0.00 0.00 260 0.00 3846 39.97 0.01 0.014 0.00 0.00 270 0.00 3838 39.97 0.01 0.014 0.00 0.00 290 0.00 3821 39.97 0.01 0.014 0.00 0.00 310 0.00 3803 39.96 0.01 0.014 0.00 0.00 330 0.00 3786 39.96 0.01 0,014 0.00 0.00 350 0.00 3769 39.96 0.01 0.014 0.00 0.00 370 0.00 3752 39.95 0.01 0.014 0.00 0.00 390 0.00 3735 39.95 0.01 0.014 0.00 0.00 410 0.00 3718 39.95 0.01 0.014 0.00 0.00 430 0.00 3701 39.94 0.01 0.014 0.00 0.00 450 0.00 3684 39.94 0.01 0.014 0.00 0.00 470 0.00 3667 39.94 0.01 0.014 0.00 0.00 490 0.00 3561 39.03 0.01 0.014 0.00 0.00 510 0.00 3634 39.03 0.01 0.014 0.00 0.00 530 0.00 3617 39.02 0.01 0.014 0.00 0.00 550 0.00 3600 39.92 0.01 0.014 0.00 0.00 570 0.00 3584 39.92 0.01 0.014 0.00 0.00 600 0.00 3559 39.91 0.01 0.014 0.00 0.00 830 0.00 3534 39.91 0.01 0.014 0.00 0.00 660 0.00 3509 39.90 0.01 0,014 0.00 0.00 690 0.00 3484 39.90 0.01 0.014 0.00 0.00 720 0.00 3459 39.89 0.01 0.014 0.00 0.00 750 0.00 3435 39.88 0.01 0.014 0.00 0.00 780 0.00 3410 39.88 0.01 0.014 0.00 0.00 1 2 3 4 5 6 7 8 TIME INFLOW STORAGE STAGE OUTFLOW 0.75" ORI. WEIR RISER/ [min] [mil [cu M [ftl [mil [mil [cfsl BARREL 810 0.00 3386 39.87 0.01 0.014 0.00 0.00 840 0.00 3361 39.87 0.01 0.014 0.00 0.00 870 0.00 3337 39.86 0.01 0.013 0.00 0.00 900 0.00 3313 39.80 0.01 0.013 0.00 0.00 930 0.00 3289 39.85 0.01 0.013 0.00 0.00 980 0.00 3284 39.85 0.01 0.013 0.00 0.00 990 0.00 3240 39.84 0.01 0.013 0.00 0.00 1050 0.00 3193 39.83 0.01 0.013 0.00 0.00 1110 0.00 3145 39.82 0.01 0.013 0.00 0.00 1170 0.00 3098 39.81 0.01 0.013 0.00 0.00 1230 0.00 3051 39.80 0.01 0.013 0.00 0.00 1290 0.00 3004 39.79 0.01 0.013 0.00 0.00 1350 0.00 2958 39.78 0.01 0.013 0.00 0.00 1410 0.00 2912 39.77 0.01 0.013 0.00 0.00 1470 0.00 2866 39.76 0.01 0.013 0.00 0.00 1530 0.00 2821 39.75 0.01 0.013 0.00 0.00 1590 0.00 2776 39.74 0.01 0.012 0.00 0.00 1650 0.00 2731 39.73 0.01 0.012 0.00 0.00 1710 0.00 2687 39.72 0.01 0.012 0.00 0.00 1770 0.00 2643 39.71 0.01 0.012 0.00 0.00 1830 0.00 2599 39.70 0.01 0.012 0.00 0.00 1890 0.00 2556 39.69 0.01 0.012 0.00 0.00 2130 0.00 2384 39.65 0.01 0.012 0.00 0.00 2370 0.00 2217 39.61 0.01 0.011 0.00 0.00 2610 0.00 2055 39.57 0.01 0.011 0.00 0.00 2850 0.00 1899 39.53 0.01 0.010 0.00 0.00 3090 0.00 1748 39.50 0.01 0.010 0.00 0.00 3330 0.00 1603 39.40 0.01 0.010 0.00 0.00 3570 0.00 1463 39.43 0.01 0.000 0.00 0.00 3810 0.00 1329 39.39 0.01 0.009 0.00 0.00 40500 0.00 1201 39.36 0.01 0.008 0.00 0.00 4290 0.00 1079 39.33 0.01 0.008 0.00 0.00 4530 0.00 983 39.30 0.01 0.008 0.00 0.00 4770 0.00 853 39.27 0.01 0.007 0.00 0.00 5010 0.00 749 39.24 0.01 0.007 0.00 0.00 52260 0.00 651 39.21 0.01 0.006 0.00 0.00 5490 0.00 560 39.19 0.01 0.006 0.00 0.00 5730 0.00 476 39.16 0.01 0.005 0.00 0.00 5970 0.00 398 39.14 0.00 0.005 0.00 0.00 6210 0.00 328 39.12 0.00 0.004 0.00 0.00 6450 0.00 264 39.10 0.00 0.004 0.00 0.00 6690 0.00 209 39.08 0.00 0.003 0.00 0.00 6930 0.00 161 39.07 0.00 0.003 0.00 0.00 7170 0.00 122 39.05 0.00 0.002 0.00 0.00 7410 0.00 94 39.04 0.00 0.001 0.00 0.00 7650 0.00 73 39.03 0.00 0.001 0.00 0.00 7890 0.00 59 39.03 0.00 0.001 0.00 0.00 1 2 3 4 5 6 7 8 TIME INFLOW STODGE STAGE OUTFLOW 0.76" ORI, WEIR RISER/ [min] [cis] [cu ft] ['Ol [r-fsl lets] Ids] BARREL 8130 0.00 48 39.02 0.00 0.001 0.00 0.00 8370 0.00 39 39.02 0.00 0.000 0.00 0.00 8610 0.00 32 39.02 0.00 0.000 0.00 0.00 8850 0.00 27 39.01 0.00 0.000 0.00 0.00 9090 0.00 23 39.01 0.00 0.000 0.00 0.00 9330 0.00 20 39.01 0.00 0.000 0.00 0.00 9570 0.00 17 39.01 0.00 0.000 0.00 0.00 9810 0.00 15 39.01 0.00 0.000 0.00 0.00 10050 0.00 13 39.01 0.00 0.000 0.00 0.00 10290 0.00 11 39.01 0.00 0.000 0.00 0.00 10530 0.00 10 39.01 0.00 0.000 0.00 0.00 10770 0.00 9 39.01 0.00 0.000 0.00 0.00 11010 0.00 8 39.00 0.00 0.000 0.00 0.00 11250 0.00 7 39.00 0.00 0.000 0.00 0.00 11490 0.00 6 39.00 0.00 0.000 0.00 0.00 11730 0.00 6 39.00 0.00 0.000 0.00 0.00 11970 0.00 5 39.00 0.00 0.000 0.00 0.00 A N e� O STATE of NORTH CAROLINA DEPARTMENT OF TRANSPORTATION JAMES B. HUNT JR. GOVERNOR DIVISION OF HIGHWAYS April 13, 1999 Mr. Scott A. Vinson Environmental Engineer North Carolina Department of Environment and Natural Resources 127 Cardinal Drive Extension Wilmington, NC 28405 Subject: State Stormwater Permit for First National Bank By Applicant — Charles E. Wells E. NORRIS TOLSON SECRETARY Thank you for your letter dated April 7, 1999 and a copy of the application for the above mentioned permit. The site of the proposed bank is at the corner of Fremont and Cowan Street. The Town of Burgaw and not the Department of Transportation maintains both of these streets. Therefore we would not have any comments regarding this site. Respectfully, :�2e Donnie Huffinan District Engineer 410 New Bridge Street, Suite 7A, Jacksonville, North Carolina 28540 Telephone 910-346-2040 Fax Number 910-346-8030 State of North Carolina Department of EnvironmentA A F�A&S, w I J and Natural Resources Wilmington Regional Office f James B. Hunt, Jr., Governor NCDENR Wayne McDevitt Secretary NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NxruRAL RESOURCES Division of Water Quality April 7, 1999 Mr. D.R.Huffman, District Engineer NCDOT-Div.3, Distirct 1 Office 410 New Bridge Street, Suite 7-A Jacksonville, NC 28640 Mr. Huffman, I am sending you a copy of an application for a State Stormwater Permit, where in it is proposed to have additional parking outside of the property boundary and what I am sure is the right-of-way to Fremont Street located within the city of Burgaw. The proposed project is located on the southeast corner of Fremont and Cowan Street. I am not opposed to the additional parking to be constructed, I leave that between you and Mr. Charles E. Wells (the applicant), however they will be required to collect and treat any constructed impervious surface runoff within the project boundaries. I am concerned that this will collect additional runoff from Fremont Street depending on the grade, which was not given on the project plans. Again this is fine with us, the more runoff being treated by a detention pond the better. The purpose of this letter is only to inform you of the nine parking spaces being proposed within the right-of-way. If you are already aware of this proposal and have given Mr. Wells approval then the only conflict of interest is between Mr. Wells and DENR for the runoff from these parking places not being collected within their pond. If you are only now becoming aware of this project please inform me as to your position in the matter. Please call or write at your convenience, (910) 395-3900. Sincerely, Scott A. Vinson Environmental Engineer RSS/sav: S:\WQS\STORMWAT\LETTERS\990108.APR cc: Wilmington Regional Office 127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone 910-395-3900 FAX 910-350-2004 An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper State of North Carolina Department of Environment and Natural Resources Wilmington Regional Office James B. Hunt, Jr., Governor Wayne McDevitt, Secretary Division of Water Quality April 6, 1999 Mr. Jim Honeycutt, P.E. Honeycutt Engineering Co. PO Box 15036 Wilmington, NC 28408 a" Al L74 fee �.rm �twk W NCDENR NORTH CAROUNA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES Subject: ACKNOWLEDGEMENT OF RECEIPT AND REQUEST FOR ADDITIONAL INFORMATION Stormwater Project No. SW8 990108 First National Bank Building Pender County Dear Mr. Honeycutt: The Wilmington Regional Office received a Stormwater Management Permit Application for First National Bank Building on January 7, 1999. A preliminary review of that information has determined that the application is not complete. The following information is needed to continue the stormwater review: 1. Since the nine additional parking spaces are part of the project and will be newly constructed impervious surface, the runoff will have to be redirected toward the pond and new pond calculations will have to be submitted along with plans showing the redirection of the runoff. From the top left corner of the plans it is noted that only 12 spaces are required, it may be more feasible if the ones located within the Fremont Street right-of-way are not constructed. Either way, please include a short narrative as to what will be decided and two new sets of plans showing the change. 2. Please include a detail of the parking, sidewalks, and curbs as per section VI. Submittal Requirements of the application form. 3. To reduce the risk of clogging, please use a larger pipe, i.e. 1.5" to 2" diameter, with a cap on the end with the proposed 0.75 in. orifice hole drilled through the cap. We have found in the past that a 0.75 in. diameter pipe can and does become easily clogged with debris from the pond. 4. Please delineate all wetlands on site, or note on the plans that none exist. 127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone 910-395-3900 FAX 910-350-2004 An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper Mr. Honeycutt April 6, 1999 Stormwater Project No. SW8 990108 Please note that this request for additional information is in response to a preliminary review. The requested information should be received by this Office prior to May 6, 1999, or the application will be returned as incomplete. The return of a project will necessitate resubmittal of all required items, including the application fee. The Division is allowed 90 days from the receipt of a completed application to issue the permit. If you have any questions concerning this matter please feel free to call me at (910) 395-3900. Sincerely, Scott A. Vinson Environmental Engineer RSS/sav: S:1WQSISTORMWATIADDINFO1990108.APR cc: Wilmington Regional Office Charles E. Wells FIRST NATIONAL BANK BUILDING 301 EAST FREMONT STREET NARRATIVE ON STORMWATER MANAGEMENT This development consists of a 1.16 acre site upon which a bank with a drive - through and associated parking will be constructed. Additional parking will be constructed outside the property line along both Cowan and Fremont Streets. The storm water from the this site, including that from the street, will be collected through a piped system and routed to a storm water treatment pond prior to being discharged into Osgood Canal. The pond discharge structure is sized to release the first inch of runoff over a period of two to five days. The pond is sized to handle the flow from the ten-year storm without overflowing. A No -Rise Certification Study and Hydraulic Analysis was prepared by Lloyd A. Tyndall, P.E. for this site. This study requires that a cut be made in a portion of the bank of Osgood Canal running along this property in order to minimize any flooding impact. Silt fence will be installed along the bottom of the cut in the canal to prevent sediment from entering the creek. Silt fence will also be installed along the top of the bank of the canal as it runs along the edge of the new pond. We intend to use the stormwater pond as a temporary sediment basin to collect sediment from the site. The discharge from an existing 1 S° pipe along with drainage from the road and additional parking along Cowan Street will be collected and routed in a 24" pipe to Osgood Canal at the south end of the Property. An energy dissipator will be installed at the end of this pipe. A deck dam will be installed in the ditch prior to installing the 24" pipe. As catch basins are installed temporary inlet filters will be put in to catch sediment before it gets into pipes.