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HomeMy WebLinkAboutSW8920903_HISTORICAL FILE_20120213 STORMWATER DIVISION CODING SHEET POST-CONSTRUCTION PERMITS PERMIT NO. SW81204(03 DOC TYPE ❑ CURRENT PERMIT ❑��APPROVED PLANS Lr HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE - 1 YYYYMMDD t i NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Charles Wakild, P. E. Dee Freeman Governor Director Secretary February 13, 2012 David Heatherly, Executive Vice President Coastal Carolina Community College 444 Western Blvd. Jacksonville, NC 28546 Subject: State Stormwater Management Permit No. SW8 920903 Coastal Carolina Community College-Maintenance Building High Density Commercial Wet Detention Pond Project Onslow County Dear Mr. Heatherly: The Wilmington Regional Office received a complete Stormwater Management Permit Application for Coastal Carolina Community College - Maintenance Building on February 10, 2012. 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 and Session Law 2008-211. We are forwarding Permit No. SW8 920903 dated February 13, 2012,for the construction, operation and maintenance of the BMP's and built-upon areas associated with the subject project. This permit shall be effective from the date of issuance until February 13, 2020,and shall be subject to the conditions and limitations as specified therein. Please pay special attention to the conditions listed in this permit regarding the Operation and Maintenance of the BMP(s), recordation of deed restrictions, procedures for changes of ownership, transferring the permit, and renewing the permit. Failure to establish an adequate system for operation and maintenance of the stormwater management system,to record deed restrictions,to transfer the permit,or to renew the permit, will result in future compliance problems. A Designers Certification is required within 60 days of completion of construction of the stormwater treatment facility. Refer to Section 11.5 of the permit for all Designers Certification requirements. If any parts, requirements,or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing by fling a written petition with the Office of Administrative Hearings(OAH). The written petition must conform to Chapter 150B of the North Carolina General Statutes, and must be filed with the OAH within thirty (30)days of receipt of this permit. Unless such demands are made this permit shall be final and binding. You should contact the OAH with all questions regarding the filing fee and/or the details of the filing process. The mailing address, telephone and fax numbers for the Office of Administrative Hearings are:6714 Mail Service Center, Raleigh, NC 27699-6714.Telephone 919-431-3000 or visit their website at www.ncoah.com. If you have any questions,or need additional information concerning this matter, please contact Chris Baker, at(910) 796-7215. Sincerely, RirectorAFor Charles akild, P. Division of Water Quality GDS/csb: S:\WQS\Stormwater\Permits&Projects\2012\920903 HD\2012 02 permit 920903 cc: Robert Bartlett, P. E.,PMM Afire— +l e 7-f- E — Onslow County Building Inspections Wilmington Regional Office Stormwater File Wilmington Regional Office 127 Cardinal Drive Extension,Wilmington,North Carolina 28405 One Phone:910-796-7215\FAX:910-350-M0 Customer service:1-877-623-6748 NorthCarolina Internet:w .ncwaterquality.org Naturally An Fmini nnmrLmiM%Ar,mnt aArr,n„Fmmaoa, State Stormwater Management,Systems Permit No. SW8 920903 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY COMMERCIAL 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 Coastal Carolina Community College Coastal Carolina Community College — Maintenance Building 444 Western Blvd., Jacksonville, Onslow County FOR THE construction, operation and maintenance of a wet detention pond in compliance with the provisions of 15A NCAC 2H .1000 and Session Law 2008-211 (hereafter collectively referred to as the "stormwater rules') 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 February 13, 2020, 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 a;; described in Section 1.8 on page 3 of this permit. The stormwater control has been designed to handle the runoff from 248,902 square feet of impervious area. 3. A 50' wide vegetative buffer must be provided adjacent surface waters, measured horizontally from and perpendicular to the normal pool of impounded structures, the top of bank of both sides of streams and rivers and the mean high water line of tidal waters. 4. The tract will be limited to the amount of built-upon area indicated on page 3 of this permit, and per approved plans. The built-upon area for the future development is limited to 58,992 square feet. 5. 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. 6. The runoff from all built-upon area within the permitted drainage area(s) of this project must be directed into the permitted stormwater control system. Page 2 of 7 State Stormwater Management Systems Permit No. SW8 920903 7. The following design criteria have been provided in the wet detention pond and must be maintained at design condition: a. Drainage Area, ycres: 7.82 Onsite, ft : 340,640 Offsite, ft2: N/A b. Total Impervious Surfaces, ft2: 248,902 Onsite, ft : 248,902 Offsite, ft2: N/A C. Design Storm, inches: 1.5 d. Average Pond Design Depth, feet: 3.5 e. TSS removal efficiency: 90% f. Permanent Pool Elevation, FMSL: 36.5 9. Permanent Pool Surface Areq, ft2: 27,670 h. Permitted Storage Volume, ft : 31,736 i. Temporary Storage Elevation, FMSL: 37.5 j. Pre-dev. 1 yr-24 hr. discharge rate, cfs: 21.15 k. Controlling Orifice: 2.5"0 pipe I. Orifice flowrate, cfs: 0.11 M. Permitted Forebay Volume, ft3: 17,325 n. Fountain Horsepower 1.3 o. Receiving Stream/River Basin: UT to Sandy Run Branch /White Oak P. Stream Index Number: 19-10-1 q. 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 times, provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency. The signed and approved Operation and Maintenance Agreement 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. Mowiny 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. 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. 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. Page 3 of 7 State Stormwater Management Systems Permit No. SW8 920903 6. Decorative spray fountains will be allowed in the stormwater treatment system, subject to the following criteria: a. The fountain must draw its water from less than 2' below the permanent pool surface. b. Separated units, where the nozzle, pump and intake are connected by tubing, may be used only if they draw water from the surface in the deepest part of the pond. c. The falling water from the fountain must be centered in the pond, away from the shoreline. d. The maximum horsepower for a fountain in this pond is 1/3 horsepower. 7. 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. 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 for inspection and maintenance shall be maintained via appropriate recorded 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. Redesign or addition to the approved amount of built-upon area or to the drainage area. C. Further development, subdivision, acquisition, lease or sale of any, 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. d. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. 11. Prior to the construction of any permitted future areas shown on the approved plans, the permittee shall submit final site layout and grading plans to the Division for approval. 12. 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. 13. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. A copy of the approved plans and specifications shall be maintained on file by the Permittee at all times. Page 4 of 7 State Stormwater Management Systems Permit No. SW8 920903 III. GENERAL CONDITIONS 1. This permit is not transferable to any person or entity except after notice to and approval by the Director. At least 30 days prior to a change of ownership, or a name change of the permittee or of the project, or a mailing address change, the permittee must submit a completed and signed Name/Ownership Change Form to the Division of Water Quality, accompanied by the supporting documentation as listed on the form. The approval of this request will be considered on its merits and may or may not be approved. 2. The; permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request. Neither the sale of the project in whole or in part, nor the conveyance of common area to a third party constitutes an approved transfer of the stormwater permit. 3. 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. 4. 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. 5. In the event that the facilities fail to perform satisfactorily, 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. 6. 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. 7. The permit remains in force and effect until modified, revoked, terminated or renewed. 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. 8. 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. 9. The permittee shall submit a permit renewal request at least 180 days prior to the expiration date of this permit. The renewal request must include the appropriate documentation and the processing fee. Permit issued this the 13th day of February, 2012. NO TH CAROLINNA ENVIRONMENTAL MANAGEMENT COMMISSION or Charl���/akild,� E., i�reltor Division of Water Quality By Authority of the Environmental Management Commission Page 5 of 7 State Stormwater Management Systems Permit No. SW8 920903 Coastal Carolina Community College — Maintenance Building Stormwater Permit No. SW8 920903 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 specifications: SEAL Signature Registration Number Date Page 6 of 7 State Stormwater Management Systems Permit No. SW8 920903 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 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 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 and located 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. 16. All components of the stormwater BMP are located in either recorded common areas, or recorded easements. cc: NCDENR-DWQ Regional Office Onslow County Building Inspections Page 7 of 7 MEMORY TRANSMISSION REPORT TIME :02-08-'12 12:06 FAX NO.1 : 910-350-2018 NAME :DENR Wilmington FILE NO. 356 DATE 02.08 12:05 TO 8 912 52 3990804 DOCUMENT PAGES 2 START TIME 02.08 12:05 END TIME 02.08 12:05 PAGES SENT 2 STATUS OK *** SUCCESSFUL TX NOTICE *** s.afa oa Np.-f4 ca.-pe:pp D<pax[me of Eavlro pl anA Na<aral Rmou rce u Wllmlpsloe Raefoaal 011lcv , dn•+arb Eavo ParK c, Goverpor FAX COVER 3.HEET fs«p eri..un, ga�rs<ary Fax: re10)350-2004 ifa/�'r��-'c �✓ry G i i� ->l�i i�-i..s �i i-a� /'¢-_st .��,.S '�— , 12� �vOln<I L)xlv6 Eixmnp<n Wnm(n Bann,N(�]Hin9 a(41a)'�Y6.1�15 a An EYYYI tjCPnwnitY AIA r'a�a[ivo Aenen EmPn±yc ' State of North Carolina Department of Environment and Natural Resources Wilmington Regional Office Beverly Eaves Perdue, Governor FAX COVER SHEET Dee Freeman, Secretary Date: _� 0� No. Pages (excl. cover): r To: � From: Jo Casmer Co: ��/ ��� �� ��% Phone: (910) 796-7336 Fax: ZS2 y�1O p Fax: (910)350-2004 '55? 4A Z�x Z- 1'7 Cardinal Drive Extension, Wilmington,NC 28405 o(910)796-7215 o An Equal ()ppo entity Affirmative Action Employ,, NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Charles Wakild, P. E. Dee Freeman Governor Director Secretary February 7, 2012 David Heatherly, Executive Vice President Coastal Carolina Community College 444 Western Blvd. Jacksonville, NC 28546 Subject: Request for Additional Information Stormwater Project No. SW8 920903 Coastal Carolina Community College Maintenance Building Onslow, County Dear Mr. Heatherly: The Wilmington Regional Office received a Stormwater Management Permit Application for Coastal Carolina Community College Maintenance Building on February 2, 2012. 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 permanent pool elevation for a stormwater wet pond must be no more than 6 inches above the seasonal high groundwater elevation. If the permanent pool elevation exceeds the 6 inch maximum then the pond must be designed with a clay or synthetic liner from the bottom of the pond to the permanent pool elevation. Please note that this request for additional information is in response to a partial, preliminary review. The requested information should be received by this Office prior to February 15, 2012, or the application will be returned as incomplete. The return of a project will necessitate resubmlttal of all required items, including the application fee. If you need additional time to submit the information, please mail, email or fax your request for a time extension to the Division at the address and fax number at the bottom of this letter. The request must indicate the date by which you expect to submit the required information. The Division is allowed 90 days from the receipt of a completed application to issue the permit. The construction of any impervious surfaces, other than a construction entrance under an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject to enforcement action pursuant to NCGS 143-215.6A. Please reference the State assigned project number on all correspondence. Any original documents that need to be revised have been sent to the engineer or agent. All original documents must be returned or new originals must be provided. Copies are not acceptable. If you have any questions concerning this matter please feel free to call me at (910) 796-7215 or email me at chrls.baker@ncdenr.gov. Sincerely, G VV-.+. 3) Chris Baker Environmental Engineer II GDS/csb: S:1WQS1StormwateAPermits 8 Projects119921920903 HM2012 03 addinfo 920903 cc: Robert Bartlett, P. E., MBAU Architecture Wilmington Regional Office Wilmington Regional Office 127 Cardinal Drive Extension,Wilmington,North Carolina 28405 One Phone:910-796-72151 FAX:910-350-20041 Customer Service:1-8776236748 North Carolina Internet:www.ncxaterquality.org Naturally An Equal Opportunity l AKimalive Actionfyl�/Employer K f DWQ USE ONLY Date Received Fee Paid P rmit Number Applicable Rules: ❑Coastal SW - N95 ❑Coastal SW- 20 8 ❑ Ph II- ost onstruction (select all that apply) ❑ Non-Coastal SW-HQW/ORW Waters ❑ Universal Stormwater Management Plan ❑Other WQ M mt Plan: State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM 77tis form may be photocopied for use as an original 1. GENERAL INFORMATION 1. Project Name (subdivision,facility,or establishment name-should be consistent with project name on plans, specifications, letters,operation and maintenance agreements,etc.): Coastal Carolina Community College-New Maintenance Building-(Parking Lot#4 Modification) 2. Location of Project(street address): 444 Western Blvd City:Jacksonville County:Onslow Zip:28546 3. Directions to project(from nearest major intersection): From intersection of NC Hwy 24+ US Hwy 17 proceed North 2.4 miles on Hwy 17 to Western Blvd., turn right. CCCC is 0.5 miles on left. 4. Latitucle:34°46' 20" N Longitude:77°23' 05" W of the main entrance to the project. if. PERMIT INFORMATION: 1.a.Specify whether project is (check one): ❑New ®Modification b.If this application is being submitted as the result of a modification to an existing permit, list the existing permit number 8920903 ,its issue date(if known) and the status of construction: ❑Not Started ❑Partially Completed* ® Completed' "provide a designer's certification 2. Specify the type of project(check one): ❑Low Density ®High Density ❑Drains to an Offsite Stormwater System ❑Other 3. If this application is being submitted as the result of a previously returned application or a letter from DWQ requesting a state stormwater management permit application,list the stormwater project number, if assigned, NA and the previous name of the project, if different than currently proposed, NA 4.a.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 ®Sedimentation/Erosion Control:9.03 ac of Disturbed Area ❑NPDES Industrial Stormwater ❑404/401 Permit: Proposed Impacts b.If any of these permits have already been acquired please provide the Project Name,Project/Permit Number, issue date and the type of each permit:NA RECEIVED FEB 0 2 .20)2 Form SWU-101 Version 07Jun2010 Page ] of 6 BY: III. CONTACT INFORMATION 1.a.Print Applicant/ Signing Official's name and title (specifically the developer, property owner, lessee, designated government official, individual,etc. who owns the project): Applicant/Organization:Coastal Carolina Community College Signing,Official&Title:David Heatherly, Executive Vice President b.Contact information for person listed in item la above: Street Address:444 Western Blvd City:lac_ksonville State:NC Zip:28546 Mailing;Address(if applicable): City: State: Zip: Phone: (910 ) 455-1221 (910-938-6789) Fax: ( ) Email:lleatherlyd@coastaicarolina.edu c.Please check the appropriate box.The applicant listed above is: ®The property owner (Skip to Contact Information, item 3a) ❑ Lessee* (Attach a copy of the lease agreement and complete Contact Information, item 2a and 2b below) ❑ Purchaser* (Attach a copy of the pending sales agreement and complete Contact Information, item 2a and 2b below) ❑ Developer*(Complete Contact Information, item 2a and 2b below.) 2.a.Print Property Owner's name and title below, if you are the lessee, purchaser or developer. (This is the person who owns the property that the project is located on): Property Owner/Organization:Coastal Carolina Community College Signing Official&Title:David Heatherly, Executive Vice President b.Contact information for person listed in item 2a above: Street Address:444 Western Blvd City:Jacksonville State:NC Zip:28546 Mailing Address(if applicable): City: State: Zip: Phone: (910 ) 455-1221 (910-938-6789) Fax: ( ) Email:heatherlyd@coastalcarolina.edu 3.a. (Optional)Print the name and title of another contact such as the project's construction supervisor or other person who can answer questions about the project: Other Contact Person/Organization: Signing Official &Title: b.Contact information for person listed in item 3a above: ZF CRIVED Mailing Address: B 0 9 012City— State: Zip: Form SWU-101 Version 07Jun2010 Page 2 of 7 Phone: ( ) Fax: ( ) Email: 4. Local jurisdiction for building permits: City of Jacksonville Point of Contact:Jeremy Smith Phone#: (910 ) 938-5294 IV. PROJECT INFORMATION 1. In the space provided below, briefly summarize how the stormwater runoff will be treated. High Density with runoff from the existingParking arking Lot#4 and proposed new maintenance building parkin g and drives will be directed to a stormwater wet detention basin(modifications required to existing stormwater pond) for treatment before discharging from the site 2.a.If claiming vested rights, identify the supporting documents provided and the date they were approved: ❑ Approval of a Site Specific Development Plan or PUD Approval Date: ❑ Valid Building Permit Issued Date: ❑Other: Date: b.If claiming vested rights, identify the regulation(s) the project has been designed in accordance with: ❑ Coastal SW- 1995 ❑ Ph II-Post Construction 3. Stormwater runoff from this project drains to the White Oak River basin. 4. Total Property Area:97.83 acres 5. Total Coastal Wetlands Area: acres 6. Total Surface Water Area: acres 7. Total Property Area (4)-Total Coastal Wetlands Area (5)-Total Surface Water Area (6) =Total Project Area*: 97.83 acres Total project area shall be calculated to exclude the followin the normal pool of irn ounded structures, the area between the banks of streams and rivers, the area below the Normal High Water(N=line or Mean High Water (MHW)line, and coastal wetlands landward from the NHW(or MHW) line. 77re resultant project area is used to calculate overall percent built upon area (BUA). Non-coastal wetlands landward of the NHW(or MHW) line may be included in the total project area. 8. Project percent of impervious area: (Total Impervious Area / Total Project Area)X 100 =41.64 % 9. How many drainage areas does the project have?1 (For high densihj, count 1 for each proposed engineered stormwater BMP. For low density and other projects, use 1 for the whole property area) 10. Complete the following information for each drainage area identified in Project Information item 9. If there are more than four drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below. :Y:-. EC EL VED EB 0 2 .2012 Form SWU-101 Version 07Jun2010 Page 3 of 7 Basin Information Drainage Area 1 Drainage Area_ Drainage Area_ Draina a Area_ Receiving Stream Name UNT to Sandy Run Branch Stream Class SC NSW Stream Index Number* 19-10-1 Total Drainage Area (so 340,640 On-site Drainage Area (so 340,640 Off-site Drainage Area(so 0 Proposed Impervious Area**(so 248,902 Impervious Area** total 73 07% Impervious"Surface Area Drainage Area_ Drainage Area_ Drainage Area_ Drainage Area_ On-site Buildings/Lots (so 17,017 On-site Sheets (so 39,968 On-site Parking (so 11,123 On-site Sidewalks (so 3,625 Other on-site (so 16,682 Future(so 58,992 Off-site (so Existing BUA***(so 101,495 Total (so: 248,902 Stream Class and Index Number can be determined at: http://vortal.ncdennor /wg ebhuq[ps/esu/classifications " Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas, sidewalks,gravel areas, etc. Report only that amount of existing BUA that will remain after development. Do riot report any existing BUA that is to be removed and which will be replaced by new BUA. 11. How was the off-site impervious area listed above determined?Provide documentation. NA Proieets in Union County: Contact DWQ Central Office staff to check if the project is located within a Threatened& Endangered Species watershed that may be subject to more stringent stormwater requirements as per NCAC 02B.0600. V. SUPPLEMENT AND O&M FORMS The applicable state stormwater management permit supplement and operation and maintenance(O&M) forms must be submitted for each BMP specified for this project. The latest versions of the forms can be downloaded from http:,t/portal.ncdennorg/web/wg/ws/su/bmp-manual. 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. A detailed application instruction sheet and BMP checklists are available from http://portal.ncdenr.org/web/wg/ws/su/statesw/forms dots. The complete application package should be submitted to the appropriate DWQ Office. (The appropriate office may be found by locating project on the interactive online map at http://portal.ncdenr.org/web/wq/ws/su/maps.) Please indicate that the following required information have been provided by initialing in the space provided for each item. All original documents MUST be signed and initialed in blue ink. Download the latest versions for each submitted application package from http://portal.ncdenr.org/web/wq/ws/su/statesw/forms does. Initials 1. Original and one copy of the Stormwater Management Permit Application Form. 2. Original and one copy of the signed and notarized Deed Restrictions&Protective Covenants VK r�_— Form. (if required as per Part VII below) 3. Original of the applicable Supplement Form(s) (sealed,signed and dated)and O&M agreement(s)for each BMP. 4. Permit application processing fee of$505 payable to NCDENR. (For an Express review, refer to http://www.envhelp.org/pages/onestopexRress.html for information on the Express program v ,v and the associated fees. Contact the appropriate regional office Express Permit Coordinator forFID additional information and to schedule the required application meeting.) FEB 0 2 .2012 FormSWII-101 Version 07Jun2010 Page 4 of 7 RV• 5. A detailed narrative(one to two pages) describing the stormwater treatment/managementfor the project. This is required in addition to the brief summary provided in the Project Information, item 1. 6. A USGS map identifying the site location. If the receiving stream is reported as class SA or the receiving stream drains to class SA waters within 1/s mile of the site boundary, include the 1/2 mile radius on the map. 7. Sealed, signed and dated calculations. 8. Two sets of plans folded to 8.5" x 14" (sealed,signed, &dated), including: a. Development/Project name. b. Engineer and firm. c. Location map with named streets and NCSR numbers. d. Legend. e. North arrow. f. Scale. g. Revision number and dates. h. Identify all surface waters on the plans by delineating the normal pool elevation of impounded structures,the banks of streams and rivers, the MHW or NHW line of tidal waters,and any coastal wetlands landward of the MHW or NHW lines. • Delineate the vegetated buffer landward from the normal pool elevation of impounded structures, the banks of streams or rivers,and the MHW(or NHW)of tidal waters. i. Dimensioned property/project boundary with bearings&distances. j. Site Layout with all BUA identified and dimensioned. k. Existing contours, proposed contours,spot elevations, finished floor elevations. 1. Details of roads, drainage features,collection systems,and stormwater control measures. m. Wetlands delineated,or a note on the plans that none exist. (Must be delineated by a qualified person. Provide documentation of qualifications and identify the person who made the determination on the plans. n. Exiting drainage(including off-site),drainage easements, pipe sizes, runoff calculations. o. Drainage areas delineated (included in the main set of plans, not as a separate document). p. Vegetated buffers(where required). 9. Copy of any applicable soils report with the associated SHWT elevations(Please identify elevations in addition to depths)as well as a map of the boring locations with the existing elevations and boring logs. Include an 8.5"xl1" copy of the NRCS County Soils map with the project:area clearly delineated. For projects with infiltration BMPs, the report should also include the soil type,expected infiltration rate,and the method of determining the infiltration rate. (Infiltration Devices submitted to WiRO:Schedule a site visit for DWQ to verify the SHWT prior to submittal, (910) 796-7378.) 10. A copy of the most current property deed. Deed book: 825 Page No:432 11. For corporations and limited liability corporations (LLC): Provide documentation from the NC Vk Secretary of State or other official documentation,which supports the titles and positions held by the persons listed in Contact Information, item la, 2a,and/or 3a per NCAC 2H.1003(e).The corporation or LLC must be listed as an active corporation in good standing with the NC Secretary of State,otherwise the application will be returned. hft://www.secretaiy.state.nc.us/CorDorations/CSearch.aspx VII. DEED RESTRICTIONS AND PROTECTIVE COVENANTS For all subdivisions, outparcels, and future development, the appropriate property restrictions and protective covenants are required to be recorded prior to the sale of any lot. If lot sizes vary significantly or the proposed BUA allocations vary,a table listing each lot number, lot size,and the allowable built-upon area must be provided as an attachment to the completed and notarized deed restriction form. The appropriate deed restrictions and protective covenants forms can be downloaded from htt orWl.ncdenr.org/web/wq/ws/su/statesw/forms does. Download the latest versions for each submittal. In the instances where the applicant is different than the property owner, it is the responsibility of the property owner to sign the deed restrictions and protective covenants form while the applicant is responsible for ensuring that the deed restrictions are recorded. By the notarized signature(s) below,the permit holder(s) certify that the recorded property restrictions and protective covenants for this project,if required,shall include all the items required in the permit and listed on the forms available on the website,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 NC DWQ and that they will be recorded prior to the sale of-any lot. RECEIVED-] Form SWU-]Ol Version 07Jun2010 Page 5 of 7 FEB 0 2 ,2012 RV• Vlll. CONSULTANT INFORMATION AND AUTHORIZATION Applicant: Complete this section if you wish to designate authority to another individual and/or firm (such as a consulting engineer and/or firm)so that they may provide information on your behalf for this project(such as addressing requests for additional information). Consulting Engineer: Robert S. Bartlett Consulting Firm: Bartlett Eneineering and Surveying PC Mailing Address:1906 Nash Street NW City:Wilsort State:NC Zip:27893 Phone: (252 ) 399-0704 Fax: (252 ) 399-0804 Email:-robertb@bartletteng.com IX. PROPERTY OWNER AUTHORIZATION (if Contact I nfornnation, item 2 has been filled out, complete this section,) 1, (print or type name of person listed in Contact Information, item 2a) certify that I own the property identified in this permit application,and thus give permission to (print or type name of person listed in Contact Information, item la) with (print or type name of organization listed in Contact information, itenn la) to develop the project as currently proposed. A copy of the lease agreement or pending property sales contract has been provided with the submittal, which indicates the party responsible for the operation and maintenance of the stormwater system. As the legal property owner I acknowledge, understand, and agree by my signature below, that if my designated agent(entity listed in Contact Information, item 1) dissolves their company and/or cancels or defaults on their lease agreement,or pending sale, responsibility for compliance with the DWQ Stormwater permit reverts back to me,the property owner. As the property owner, it is my responsibility to notify DWQ immediately and submit a completed Name/Ownership Change Form within 30 days;otherwise I will be operating a stormwater treatment facility without a valid permit. I understand that the operation of a stormwater treatment facility without a valid permit is a violation of NC General Statue 143-215.1 and may result in appropriate enforcement action including the assessment of civil penalties of up to$25,000 per day, pursuant to NCGS 143-215.6. Signature: Date: 1, a Notary Public for the State of County of do hereby certify that personally appeared before me this_day of and acknowledge the due execution of the application for a stormwater permit. Witness my hand and official seal, SEAL My commission expires RECEIVED FEB 0 2 .2012 Form SWU-101 Version 07Jun2010 Page 6 of 7 BY: X. APPLICANT'S CERTIFICATION I, (print or type name of person listed in Contact Information, item In) David Heatherly-Executive Vice President 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 the applicable storrmmwaater pules under 15A NCAC 2H .1000, L 2006-246(Ph. II- Post Construction) or SL 2008-211. Signature:_ Pf �7 � Date: 2 / } I, S a/i M Al m e'O' /c a Notary //ub`rlic for//t//he S//tt�ate of fyd�'�'�i- 6-r,0 h0. County of -, do hereby certify that,Iel/14 /Tea7hr�y personally appeared before me this rday of F�6� _10 7,and acknowledge the due execution of theapplication for a stormwater permit. Witness my hand and official seal, N1.1 QTA/1y d ` SEAL U i2 2 , My commission expires "•gNOVER 00 RECEIVED FEB 0 2 .2012 Form SWU-101 Version 07Jun2010 Page 7 of 7 BY: RTLETT 1906 Nash Street North Wilson,NC 27893-1726 Phone:(252)399-0704 Fax:(252)399-0804 jon@bardetteng.com January 31, 2012 NCDENR Washington Regional Office 943 Washington Square N12H Washington,NC 27889 REFERENCE: COASTALCAROLINA COMMUNITY COLLEGE-PARKING LOT 4 STORMWATER MODIFICATION- SOILS EVALUATION INTRODUCTION: A preliminary evaluation of soils and site characteristics was performed by Jon L. Meade, PhD on October 13, 2011 to evaluate potential suitability for onsite stormwater control modifying a previously permitted existing wet-detention pond. The soil series mapped for the location is GoA(Goldsboro) and Ra (Rains). METHODS: Two soil sample bore holes (#1 and #2) were performed for the detention pond. Locations are shown in Figure 1 with detailed information in Table 1. Soils are generally clay loam at upper depths to clay at deeper depths. CONCLUSIONS AND RECOMMENDATIONS: Soils in the proposed pond area were mainly GoA (Goldsboro) and Ra (Rains) series. Based on site contours, the existing ground elevations for the proposed pond expansion range between 41.3' to 41 X over the pond site. Soil layers were typically clay loam to clay and the estimated seasonal high water table (SHWT) was approximately 18" deep (Elevation approximately 39.8'-40.3'). The existing stormwater pond permanent pool elevation based on actual survey of the outlet pipe structure is 36.19' or approximately 41`1 below the SHWT elevation. The existing stormwater pond was permitted and constructed in 1992. The existing pond has been functioning properly for 19 years with no report of problems or issues. FEB 0 2 .2012 BY:___ —2— January 30,2012 For the expansion of the stormwater pond, the permanent pool elevation was set at elevation 36.5' to allow for the continued drainage patterns and treatment of the existing impervious areas previously permitted. If you have any questions or need additional information, please contact our office. Thank you. Sincerely, Bartlett Engineering & Surveying Robert S. Bartlett, PE Enclosure RECE WED FEB G 2 .2012 BY: TABLE 1: SOIL PROFILE DESCRIPTIONS LOCATION: BORE HOLE#1 (Wet-Detention Pond Expansion) SHWT-16"-18" BELOW EXISTING GROUND DEPTH " COLOR TEXTURE DESCRIPTION 0-6 10YR 2/1 TOPSOIL-LOAMY 6-12 10YR 5/4-5/6 SANDY CLAY 12-16 10YR 6/3 SANDY CLAY LOAM WITH SOME 5/8 16-18 10YR 6/2 SANDY CLAY LOAM ESIMATED SHWT 10YR 5/8 REDOX CONCENTRATIONS 18-24 10YR 6/2 SANDY CLAY MORE DISTINCT FEATURES 10YR 5/8 REDOX CONCENTRATIONS 24-30 10YR 611 SANDY CLAY MIXED 10YR 6/6 FAINT 30-36 10YR 6/1 SANDY CLAY 10YR 5/8 STREAKS 2.5YR 5/6 STREAKS 36-34 10YR 6/1 SANDY CLAY TO CLAYEY SAND TRANSITION 10YR 5/8 STREAKS 2.5YR 5/6 STREAKS LOCATION: BORE HOLE#2 (Wet-Detention Pond Expansion) SHWT-16"-22" DEPTH " COLOR TEXTURE DESCRIPTION 0-6 10YR 2/1 TOPSOIL-LOAMY 6-12 10YR 5/4-5/6 SANDY CLAY 12-16 10YR 6/3 SANDY CLAY LOAM WITH SOME 5/8 16-22 10YR 6/2 SANDY CLAY LOAM ESIMATED SHWT 10YR 5/8 REDOX CONCENTRATIONS 22-28 10YR 6/2 SANDY CLAY MORE DISTINCT FEATURES 10YR 5/8 REDOX CONCENTRATIONS 28-32 10YR 4/3 SANDY CLAY 10YR 5/8 REDOX CONCENTRATIONS 10YR 6/2 LOW CHROMA 32-40 10YR 4/3 CLAYEY MIXED 10YR 5/8 REDOX CONCENTRATIONS 10YR 6/2 LOW CHROMA FEB 0 2 .2012 BY: COASTAL CAROLINA COMMUNITY COLLEGE FIGURE 2: BORE HOLE LOCATIONS (EXISTING CONDITIONS) ; 40 '-c_ NOTE: SOIL SURVEY INFORMATION TAKEN FROM USDA j NATURAL RESOURCES CONSERVATION SERVICE NATIONAL COOPERATIVE SOIL SERVEY WEB SERVICE. 3935-- -m �,, T0� - GoA-GO SB 0 SERIES __ �•! lawwl Il lyyy"�_ rn`-. 4 / LD OR 40� / -.47., �,.y \\ °SIP II��( �,h _YP 0\_ / N / _may. SIT ra Ra-RAINS SERIES s°no --- li '/� v� 42 � I' Y.q•' 40/ .q\ `,1 aiT.yS ,\_ _ / a2F�`gz •v.a.�,1 `\,I") ----- POND EXPANSION X "4\.--- --=--------- ` j �II Ra (Rams) �\il ; BORE HOLE#2 \�N \ j ,,'`\ GoA BORE HOLE#1 ON A 43. cc )\ \`( SOIL SERIES `.,' \ \ % z"0 BOUNDARY , I iil \ P �TCl7L` •r` INW\ �� \\ FEB 0 2 .2012 �. - y BAR TLE TT *s ,�, - �� o �Y:---- ENGINEERING & SURVEYING, PC 1906 NASH STREET NORTH GRAPHlu SCALE WILSON, NORTH CAROLINA 27893 TEL (252)399-0704 FAX (252)399-0804 100 0 50 100 200 400 License No. C-1551 www.bartletteng.com DATE: NOVEMBER 2011 CADFILE: 11153 SOIL MAP SCALE: 1' = 100' DRAWN BY: JM ( IN FEET ) CLIENT: MBAJ SURVEYED BY: 1 inch = 100 ft. COASTAL CAROLINA COMMUNITY COLLEGE FIGURE 2: BORE HOLE LOCATIONS NOTE: SOIL SURVEY INFORMATION TAKEN FROM USDA GoA—GOLDSBORO SERIES (PROPOSED SITE) NATURAL RESOURCES CONSERVATION SERVICE NATIONAL Ra—RAINS SERIES COOPERATIVE SOIL SERVEY WEB SERVICE. p Jam' yb•96 M•ZF g 4g'33"E �— % x + \SOIL SERIES g0Zs St2' �_ — — — — — — �\ BOUNDARY r . = z Ra \/\ / BORE — / (RAINS FINE / / HOLE#2 BORE SANDY LOAM) } / HOLE//1�)( I STORMWATER / POND EX POND EXPANSION \\ TO REMAINCD GckA I x co % _ _ ::::;nt;'.'• a` `S': \ (GOLDSBORO FINE t —..� '`" . :... : ` ,>:?:t:_ SANDY LOAM) L ....::::•.:.......:: ::. .::.............................. t 0) C o; / _ N z Yl RF�Cov-Ffol I 0 n B A R TLE TT FEB 0 2 .2M ENGINEERING & SURVEYING, PC GRAPHIC SCALE 1906 NASH STREET NORTH 60 0 30 so 120 BY' WILSON, NORTH CAROLINA 27893 zw TEL (252)399-0704 FAX (252)399-0804 License No. C-1551 www.bartletteng.com DATE: JANUARY 2012 CADFILE: 11153 SOIL MAP ( IN FEET ) SCALE: 1" = 60' DRAWN BY: JM 1 inch = 60 it. CLIENT: MBAJ SURVEYED BY: . �Ha f�-'Moorfle !' ya JIM fx T +Jac sonvflle& =�OR1 ely�Camp'-Lejeune• •'�,• + '"� • 'Piney', (yfjr,LO` ale IJi..Cr:C•L7 ii. .'7�5 '.7r7 7.S�( , 7e' q: �� 11J��1:]ii�'1�10• �11� 3�i�i% Y . . . • rr. . .. YD Hal oo lip / P r l na i�Camp'Lejeune AA 41 �� , � � .fly . .•J��ra �� '. . 5 r+, c. r T Y '' - a ! 1'• Jacksonville Co r COa51 I.Ca line "OMM un ,ColIM3e y , �.♦, t Y j r � t j v.. �v`�"y 1.✓{ � �' • -. ` ` :Y try ,A' , +�•' - Soil Map—Onslow County,North Carolina 3 2815W 2817M 2818M 281870 281840 282010 28MM MY 28 20 282 90 M'49 33' . 4 W .R _ e Fj 3 e r IT ti r� 7 N o 14 34'46'18" n - �' •• ie° `�1 34'46'18' 2516M 281730 2BI18M 281870 281940+ 202010 2520B0 2821W 282220 282290 Map She:1:3,300 if prMt.6 pn A size(B.5-x 11l sheet N Meters n r � 0 45 90 180 270 0 150 300 600 Feet 900 (USDA Natural Resources Web Soil Survey 1/30/2012 Conservation Service National Cooperative Soil Survey Page 1 of 3 � Y r_ N 3950280 J85 J50 JBSOMO J&JOSJO Jl50820 30W710 Q77•2Y 11' 77'23'1Y' § t♦o ,' TAU ' v o N 3S O N O S 8 w a v u �� a• � �,,per ,, 7 > � 0 0 77.22'Ir zr Js• ae sw ze ezo s n• Jsa J0.5 71a Y Y N y Y g"VECEI V EID FEB 0 2 .2012 BY: • 1. f j'f � Ay•p ... p CP f T f 4 s'. itIra �! fit.••'• r' '�•' jel •.r .. �lj v .4r 1 1• 'l 4rS.,• ' v-":'1LImG;t '✓ ram a r-�. �•. : tea. �• rvv' .F," ��' .r••�+ a 'Q•Lr. L•^•{ rf� yy�r�IY, I ' ip .ram "•`}+ Y �.am i j. at Ir. I r RECEIVED FEB 0 2 2012 BX: (Page 1 of 2) ' 1 it .q?Tl'OF gi 7L �A....TV: ` ro 87 MRH 26 AID 1_ 59 o95n%432 7MIs -RESENFED TO IAX OFFICE eTaTr OF NOATw caa0u CRAWFORD COLLINS � cr -- Excise Tax y3O.BO "' �g'O° Time, Book and Page Parcel Identifier Number ' Mail after recording to: Prepared by: GAYLOR, EDWARDS AND VATCHER Attorneys at Law 219 New Bridge Street Jacksonville, North Carolina 28541-1057 Brief description for index: RORT9 CAROLINA GOAL WARRANTY DEED This Deed made this 24th day of March 19 87 , by and between GRANTOR GRANTEE .. JACKSONVILLE COUNTRY CLUB, INC., a THE TRUSTEES OF North Carolina non-profit Corporation COASTAL CAROLINA COMMUNITY COLLEGE The designation Grantor and Grantee as used herein shall include said parties, oil their heirs Successors and assigns, and shall include singular, plural, masculine, feminine or neuter as required by context. WITINIS.SETH, that the Grantor, for a valuable consideration paid by the Grantee, the receipt of which is hereby acknowledged, 1as 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 Jacksonville Township Onslw County, North Carolina, more Particularly described as follows: COMMENCING at a concrete monument where the eastern edge of Western Boulevard's right-of-way intersects the northern edge of NCSR 1403's right-of-way, also known as Country Club Road; thence on a bearing of N 81 degrees 28 minutes 49 seconds E for . 2011.81 feet to an iron stake and the TRUE POINT OF BEGINNING. Thence from the TRUE POINT 07 BEGINNING and along the northern edge of NCSR 1403's right-ofway N 70 degrees 37 minutes 55 seconds E for 179.97 feet to a set iron stake, said point being a new division line in Jacksonville Country Club's property as recorded in Deed Book 252 on Page 403 in the Onslow County Registiy, thence for seven calls with the new division lines in said Property. First call, N 15 degrees 00 minutes 18 seconds W for 1713.43 feet to a set iron stake, Second call, N 60 degrees" 11 minutes 41 seconds W for 656.69 feet to a set iron stake. Third call, N 33 degrees 19 minutes 22 seconds W for 342.87 feet to a set iron stake, Fourth call, N 12 degrees 17.,minutes 32 seconds W for 299.34 feet to a set iron stake, Fifth call, N 74 degrees: 48 minutes 07 seconds E for 380.97 feet, Sixth call, N I 31 degrees 54 minutes 24 seconds W for 455.43. feet to a set -iron stake, Seventh gall, S 69 degrees 07 minutes 31 seconds W for 508.64 feet to a set iron stake, said stake being located in the existing line between Coastal Carolina Community College and a 7�A� st- Jacksonville division line tbetween ry �COastal 'Carol thence for i a Community munity Cols with llegeiand i _t-� i�,,,(� �[ y N.�� Jacksonville Country C1ub;. First call, S 5 degrees 24 minutes OC FEB 0 2 .2112 BY: Book 825. Pace 432. File Flacber (Page 2 of 3) . a'SK =!15I'!JJ .. seconds W. for $93.70 feet to an existing iron stake, Second call, S 70 degrees 19 minutes 39 seconds W for 277.70 feet to an exist-ng iron stake; thence with Country Club Villas as recorded :n Map Book 21, Page 172 S 20 degrees 40 minutes 21 seconds E for 6_2.90 feet to an existing iron stakes thence for five calls with G. E. Robinson's property, new or formerly, as recorded in -)eed 3ook 672 on Page 7 in the Onslw County Registry, First call, N 80 degrees 46 minutes 58 seconds E for 249.78 feet to an existing iron stake, Second call, N 67 degrees 27 minutes 13 seconds E for 324.64 feet to an existing iron stake, _Turd call, N 67 degrees 21 minutes 23 seconds E for 250.02 feet to an existing iron stake, Fourth call, N 67 degrees 32 minutes 55 seconds E for 124.90 feet to an existing iron stake, ?fifth call, S -9 degrees 57 minutes 52 seconds E for 282.31 feet to the TRUE PO:NT OF BEGINNING and containing 20.1 acres, and being a Dart ' of that property described in a deed from D.L. Phillips and vise, Louise E. Phillips to Jacksonville Country Club, 'Inc. dated January 5, 1955, and recorded in Book 252, Page 403 Onslow, County Registry. TO HAVE AND TO HOLD the aforesaid lot or parcel of land and all privileges and appurtenances thereto belonging to the Grantee in fee simple. And the Grantor covenants .with the Grantee that Grantor is seized of the premises in fee 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 w:11 warrant and defend the title against the lawful clams of all persons • whomsoever except for the exceptions stated herein. IN WITNESS WBEAE01, the Grantor has caused this _nstrvment to be signed in its corporate name by its duly authorized officers and its seal to be hereunto affixed by authority of its Board of Directors, this tie day and year first above written. JACKSONVILLE COUNTRY CLUB, INC. tald 1 • '; is ecretary Press ent `• .�;• ..(CORPORATE SEAL) NORTU�CAROLINA ONSLEi;COUNTY i'J •'1 a Notary Public in and for the county and state aforesaid, certify tut J.N. Mile per,onally appeared before me this day and a_knowle�e� e s Ahe 1s tth!e Ass't Secretary of JACKSONVILLE COUNTRY CLUB, =vC., a North Carolina corporation, and that by authority duly given and as tie act of the corporation, the foregoing instrument was signed in its name by ::s President, sealed with its corporate seal, and attested by him as _ts Ass't Secretary. witness my d official seal, this the 24th day of My Commission expiresx - `• Not Public J�DW co aom wmtar•4 sow taum . ni.;■.ae,,;r.,y,!w SteDhenle A. Lanier ��pp�//��i XX� T1�11ff'�� N.u.fM roW k ad,wa.a.`,.w.«�to W..m,...yw.w Ir'..M.a.r,..,L1 s W..ab r R-E— EI V L' D ,See lie. 6th"r Narrh- FEB 0 2 2012 BY: Hook 825. Pace 432, File mnvber Onslow County Property Records Site Page 1 of 1 Parcel ID: 040364 Map#: 346-2 Tax Year: 2011 Luc: Commercial/Ind/Primary Class: Commercial NBHD:Western Blvd. Commercial ONSLOW TECHNICAL INSTITUTE TRU 444 WESTERN BLVD Exempt: E Parcel Parcel 040364 Tax Year 2011 Property Addess 444 WESTERN BLVD Unit Desc Unit # NBHD 2509 - Western Blvd. Commercial Class Commercial Land Use Code 34 - Commercial/Ind/Primary Living Units Mapping Acres 70.56 LAMA Acres 70.557 Location Fronting Zoning B-1-B-1 Map # 346-2 PIN Number 438711561171 Total Cards 16 Record Type R Legal Legal Description SR 1470 Township 110 -JACKSONVILLE City Code 20 -JACKSONVILLE Jurisdiction 1020 - JACKSONVILLE CITY Plat Book-Page/Subd # NO-SUBDIV Owner Details Owned ONSLOW TECHNICAL INSTITUTE TRU Owner 2 Customer ID 999050001 Address 444 WESTERN BLVD JACKSONVILLE, NC 28540 Mailing Address %Ownership 100 Nature of Ownership - FEB 0 2 2012 BY: http://property.onslowcountync.gov/Forms/PrintDatalet.aspx?pin=040364&gsp=PROFILE... 1/30/2012 WET DETENTION POND ANALYSIS-ALL RULES FILE NAME: S:IWQSISTORMWATERIEXCELSPREADSHEETSIPOND1920903 PROJECT#:SW8 920903 REVIEWER: c baker Initial Run Date Ifi eb 6,2012 PROJECT NAME: !Coastal Carolina Community College Maintenam Last modified 06-Feb-12 Receiving Stream: UT to Sandy Run Branch Class: SC NSW Drainage Basin: (While Oak Within 1/2 mile SA? 0 Index No. 119-10-1 I Site Area 97.83 acres ODrainage Area 340640.00 square feet DA Area 7.82 acres Rules-"2008"or"Ph2" 2008 IMPERVIOUS AREAS-BUA Runoff C Buildings 17 0 .00 square feet 1 51 Street 5109191.00 Square feet 0.98 SW 3625.00 square feet 0.95 Future 58992.00 square feet 0.9s Offsite square feet N55 Other 118177.00 square feet 0.95 lBUA at diff.DSG) square feet 0.95 TOTAL 248902.00 square feet SURFACE AREA CALCULATION(with added DA and BUA at different design storm) Overall%Impervious 73.07% SA/DA Ratio 7.31% Average Design Depth 3.5 feet Req.SA 24890 sf TSS,85 or 90: 1 90 % Prov.SA 27670 st TEMPORARY POOL AND FOREBAY VOLUME CALCULATIONS New BUA Old BUA Drainage Area© 340640.00 at BUA 248902.00 0.00 sf Post development Rv= 0.708 #DIV/O! unitless Old BUA Design Storm inches Old BUA Design Volume 0 1.5"New BUA Design Storm Volume 30130 1 yr.24 hour precipitation depth(inches) 1.50 ham NOAA chart Predevelopment Rv value 0.05 Use 0.05 if no existing BUA 1 yr.24 hr.Pre-development volume 2129 cubic feet 1 yr.24 hr.Post-development volume 30130 cubic feet 2008 Design Volume r 30130 cubic feet Phase 2 Design Volume F30130 cubic feet Required Volume 30130 cf Area,sf Inc.volume Acc.volume Top of Sediment 31.50 mist. . . . . . . . . B429.o0 0.00 0.00 Bottom of Shelf 36.00 msl.......... 23652.00 72182.25 72182.25 Permanent Pool 36.50 mist. . . . . . . . . 27670.00 12830.50 85012.75 Top of Shelf 37.00 post.......... 32585.00 15063.75 100076.50 Temporary Pool 37.50 msl......... 34104.00 16672.25 116748.75 Volume met at elev - 38.31 msl FOREBAY Vol.Prov,at TP 31736.00 cf Perm.Pool Volume= 85013 Req.Forebay Volume= 17003 Provided Volume= 17325.00 Percent= 20.4% Calculated Average Depth,feet 13.52 Max Pump HP 113 ORIFICE CALCULATION Average Head 0.30 feet 02 Area= 9.54 sq.inches Flow Q2,cfs 0.174 cfs Q5 Area= 3.82 sq.inches Flow Q5,cfs 0.070 cfs Orifice Area= 4.91 sq.inches No.of Orifices 1 Avg.Flow Q= 0.090 cfs Diameter,inches 2.50 or weir H x W in x Drawdown= 3.9 days V of end contractions,N= 1 yr 24 hr intensity,in/hr 5.88 NOAA tl discharge coefficient,C= 3.30 Runoff Coefficient 0.77 unitless Effective weir length,L 1 yr 24 hr peak 35.34 cfs Orifice flow<lyr24hr? YES-OK COASTAL CAROLINA COMMUNITY COLLEGE MAINTENANCE BLDG. ADDITION 444 Western Blvd. Jacksonville, NC Onslow Co. STORMWATER BMP PRELIMINARY CALCULATIONS January 31, 2012 SEA 20106 : 131-11 B`........ �uu iman aoo\ BARTLETT BI( EM&Sl1NEYWG,K 1906 Nash Street North Wilson,NC 2 7893-1 726 Phone:(252)399-0704 Fax:(252)399-0804 Robma,banlenenecom �py� T� � 7?��('� FEB 0 2 2012 F3Y: y. January 31,2012 Wilmington Regional Office BAWLETT Department of Environment ENGII MING & SURVEYING, K and Natural Resources 1906 Nash Street North Wilson,NC 27893-1726 Attn: Stormwater Phone:(252)399-0704 Fax:(252)399-0804 127 Cardinal Drive Wilmington,NC 28405 REFERENCE: STORMWA1-ER NARRATIVE-COASTAL CAROLINA COMMUNITY COLLEGE- NEW NIAINIT.NANCE BUILDING JACKSONVILLE, NC To Whom It May Concern: STORMWATER: We are seeking a permit modification for the Coastal Carolina Commurtin, College stormwater permit# SW8920903. The current permit consists of a parking lot (Parking Lot#4) that utilizes a detention pond to treat runoff. Proposed modifications consist of addition of a new maintenance building and associated drive and parking that will utilize the existing detention pond with modifications as the BDfP. The, stormwater detention pond is designed to capture runoff generated by 1.5 inches of rainfall from all currently permitted and proposed impervious surfaces (including future parking lot) except one entrance drive to the site that is replacing an existing entrance drive that will be removed. The detention pond is designed to treat at 90% TSS removal without vegetated filter. The drainage area is approximately 340,640 SF with impervious area approximately 248,902 SF yielding a BUA/DA of 0.73. The SA/DA ratio value chosen was 7.5 from the Coastal (90%TSS Removal) SA/DA Table 10-4 based on an average pond depth of 3.5ft deep and 75%impervious area. Stormwater will be conveyed by sheet flow and piping to the modified stormwater detention pond before discharging the site into an existing drainage ditch. The ditch was evaluated by NCDENR Wilmington office (approximately end of November 2011)and determined it was not a stream feature near the point of discharge. If you have any questions or need additional information,please contact our office. Thank you. Sincerely, Robert S.Bartlett, PE Enclosure FEB 0 2 .2012 BY: STORMWATER DETENTION POND(Designed according to NCDENR BMP Manual) The stormwater detention pond was designed to meet the Coastal Stormwater Regulations. Detention pond designed at 90%TSS removal and runoff from 1.5" rainfall. Elevation: 36.5' (permanent pool)to 41.5' top of dike Storage Elevation: 37.5' (temporary pool) Inlet Box: Crest Elevation 39.75' Inlet Box-24"x36" Barrel: Free Outfall Diameter= 15.0" Emergency Weir Elevation=40.0' Length=10' Orifice Structure: 2.5"circular @ Elev. 36.5' Orifice Structure2: I opening(2.0' wide x 1.0' height)@ Invert Elev. 37.5' Drawdcwn: Approximately 3.5 days for 1.5"Runoff Coastal Carolina Community College-Jacksonville,NC STORMWATER BMP PRELIMINARY CALCULATIONS DESIGN STORM POST DEVELOPED RETURN EVENT DEPTH PEAK RUN-OFF MWSEL YEARS IN CFS (FT) 1 3.6 0.40 39.3 2 4.38 1.34 39.4 10 6.77 7.91 39.7 25 8.43 13.91 39.9 100 11.5 23.33 40.1 k;'f_G;C! L V ED FEB 0 2 .2012 BY: PRELIMINARY POND DESIGN DATA POND RESIDENTIAL DRAINAGE AREA(ACRES) 7.82 IMPERVIOUS AREA 5.71 MAX IMPERVIOUS AREA 73% AVG. POOL DEPTH(FEET) 3.5 TSS REMOVAL 90% SA/DA RATIO@75% imp area 7.5 (From NCDWQ Stormwater BMP Chart) SURFACE AREA REQUIRED(SF) 25,548 SURFACE AREA PROPOSED SF 27,670 DRAWDOWN ORIFICE SIZE(INCHES) 2.5 TEMP. POOL VOLUME PROVIDED 31,736 DRIVING HEAD(FT) 0.41 DISCHARGE(CFS) 0.105 DRAWDOWN TIME(DAYS) 3.50 OPTION#2 day = (0.25'(1+Aoot she A q perm boot))+((( boi Shen+gbot_pona)/2) Depth/Amt snen) Permanent Pool Elevation 36.5 Pond Bottom Elevation 31.50 Depth(Bottom of Vag. Shelf to Pond Bottom) 4.5 (Depth from bottom shelf to bottom pond) Abot_shett 23652 EIev=36.0 Apwm_pl 27670 EIev=36.5 Abot_bona 8429 deg 3.52 DESIGNED TO CAPTURE 1.5" RUN-OFF wQv D.A. BUILT UPON BUA./ Rv STORAGE BMP DRAINAGE AREA(BUA) D.A. REQUIRED AREA AREA SF SF CF DENTION BASIN 340,640 248,902 0.73 0.71 30130 FEB U 2 .2012 BY: WET DETENTION BASIN VOLUMES DETERMINED FROM PLAN CONTOURS PARKING LOT #4 MODIFICATION-NEW MAINTENANCE BLDG. (NCDENR) FOREBAY VOLUMES BELOW PERMANENT POOL AREA INCREMENTAL STORAGE VOLUME STAGE ELEV FT ACRES AREA ISO FT VOLUME (CU FT) (CUMMULATIVE AVG VOLUME CU FT 0 32.00 0.0556 2,421 0 0 0.5 32.50 0.0621 2,707 1,280 1,280 1 33.00 0.0686 2,990 1,423 2,703 2 34.00 0.0831 3,621 3,306 6,009 3 35.00 0.0987 4,300 3,961 9,970 4 36.00 0.1152 5,017 4,659 14,629 4.5 36.50 0.1324 5,768 2,696 17,325 MAIN POND VOLUMES BELOW PERMANENT POOL AREA INCREMENTAL STORAGE VOLUME STAGE ELEV FT ACRES AREA (SQ FT) VOLUME CU FT CUMMULATIVE AVG VOLUME CU FT) 0 31.50 0.1935 8,429 0 0 0.5 32.00 0.2157 9,398 4,456 4,456 1.5 33.00 0.2618 11,404 10,401 14,857 2.5 34.00 0.3100 13,505 12,455 27,312 3.5 35.00 0.3606 15,706 14,606 41,918 4.5 36.00 0.4130 17,991 16,849 58,767 5 36.50 0.5003 21,795 9,947 68,714 TOTAL POND VOLUMESABOVE PERMANENT POOL AREA INCREMENTAL STORAGE VOLUME STAGE ELEV FT ACRES AREA(SQ FT) VOLUME CU FT (CUMMULATIVE AVG VOLUME CU FT 0 36.50 0.6352 27,670 0 0 0.5 37.00 0.7480 32,585 15,603 15,603 1 37.50 0.7829 34,104 16,133 31,736 1.5 38.00 0.8304 36,171 17,568 49,304 2.5 39.00 0.9157 39,890 38,031 87,335 3.5 40.00 1.0164 44,275 42,083 129,418 4.5 41.00 1.1861 51,668 47,972 177,390 FEB 0 2 .2012 BY: Job File: P:\_PROJECT FILES\CCCCPOND\PS_PRE.PPW Rain Dir: P:\_PROJECT FILES\CCCCPOND\ --_-----JOB TITLE====_____ Project Date: 1/9/2012 Project Engineer: Robert S. Bartlett Project Title: Watershed Project Comments: RECEIVE' DI SIN: 121E01CO709D Bartlett Engineering and Surveying, PC FEB 0 2 2012 PondPack Ver. 9.0041 Time: 11:09 AM Date: 1/10/2012 BY: Table of Contents i Table of Contents as+aa+a+rraa++ar+aaa.r MASTER SUMMARY a+u a««+rra+aa.«araa+a Watershed. . . . . . . Master Network Summary . . . . . . . . . . . . . 1.01 DESIGN STORMS SUMMARY •••+•:rraa•+rarrara JACKSONVILLE. . . . Design Storms . . . . . . . . . . . . . . . . . . . . . . 2.01 TC CALCULATIONS +••+••:a+a.+++ti ar.a. PRE-DEV. . . . . . . . . Tc Calcs . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.01 CN CALCULATIONS PRE-DEV. . . . . . . . . Runoff CN-Area . . . . . . . . . . . . . . . . . . . . . 4.01 RUNOFF HYDROGRAPHS •••*•*•••+••rra*••+• Unit Hyd. Equations . . . . . . . . . . . . . . . . 5.01 PRE-DEV. . . . . . . . . Pre 1 Unit Hyd. Summary . . . . . . . . . . . . . . . . . . 5.03 SIN: 121E01CO709D Bartlett Engineering and Surveying, PC - PondPack Ver. 9.0041 Time: 11:09 AM Date: 1/10/2012 FEB U 2 .2012 i3Y: Type. . . . Master Network Summary Page 1.01 Name. . . . Watershed File. . . . P:\_PROJECT PILES\CCCCPOND\PS PRE.PPW MASTER DESIGN STORM SUMMARY Network Storm Collection: JACKSONVILLE Total Depth Rainfall Return Event in Type RNF ID Pre 1 3.6000 Synthetic Curve TypelI 24hr Pre 2 4.3800 Synthetic Curve TypeII 24hr Pre 10 6.7700 Synthetic Curve TypeII 24hr Pre 25 8.4300 Synthetic Curve TypeII 24hr Pre100 11.5000 Synthetic Curve TypeIi 24hr MASTER NETWORK SUMMARY SCS Unit Hydrograph Method (•Node=Outfall; Node=Diversion;) (Thin= HYG Truncation: Blank=None; L=Left; R=Rt; LR=Left&Rt) Max Return HYG Vol Qpeak Qpeak Max WSEL Pond Storage Node ID Type Event ac-ft Trun hrs cis ft ac-ft _______ ____ ______ __________ __ _________ ________ ____________ •OUT 10 JCT 1 .113 12.6000 .43 `OUT 30 JCT 2 .205 12.5000 .98 *OUT 30 JCT 10 .589 12.4500 3.66 'OUT 10 JCT 25 .917 12.4500 6.03 'OUT 10 JCT 100 1.604 12.4500 10.96 PRE-DEV AREA 1 .113 12.6000 .43 PRE-DEV AREA 2 .205 12.5000 .98 PRE-DEV AREA 10 .589 12.4500 3.66 PRE-DEV AREA 25 .917 12.4500 6.03 PRE-DEV AREA 100 1.604 12.4500 10.96 SIN: 121EOIC0709D Bartlett Engineering and Surveying, PC 1Ii`l. E11 W � PondPack Ver. 9.0041 Time: 11:09 AM Date: 1/10/2012 FEB 0 2 2012 BY: Type. . . . Design Storms Page 2.01 Name. . . . JACKSONVILLE File. . . . P:\_PROJECT FILES\CCCCPOND\ Title. . . Project Date: 1/9/2012 Project Engineer: Robert S. Bartlett Project Title: Watershed Project Comments: DESIGN STORMS SUMMARY Design Storm File,ID = JACKSONVILLE Storm -rag Name = Pre 1 _ ____________________________________ Data Type, File, ID = Synthetic Storm TypeII 24hr Storm Frequency = 1 yr Total Rainfall Depth= 3.6000 in Duration Multiplier = 1 Resulting Duration = 24.0000 hrs Resulting Start Time= .0000 hrs Step= .1000 hrs End= 24.0000 hrs Storm Tag Name = Pre 2 __ _________________________ _ ________ Data Type, File, ID Synthetic Storm TypeII 24hr Storm Frequency = 2 yr Total Rainfall Depth= 4.3800 in Duration Multiplier = 1 Resulting Duration = 24.0000 hrs Resulting Start Time= .0000 hrs Step= .1000 hrs End= 24.0000 hrs Storm Tag Name = Pre 10 __ _______ Data Type, File, ID = Synthetic Storm TypeII 24hr Storm Frequency = 10 yr Total Rainfall Depth= 6.7700 in Duration Multiplier = 1 Resulting Duration = 24.0000 hrs Resulting Start Time= .0000 hrs Step= .1000 hrs End= 24.0000 hrs Storm Tag Name = Pre 25 __ _ __________ ____________ Data Type, File, ID = Synthetic Storm TypeII 24hr Storm Frequency = 25 yr Total Rainfall Depth= 8.4300 in Duration Multiplier = 1 Resulting Duration = 24.0000 hrs Resulting Start Time= .0000 hrs Step= .1000 hrs End= 24.0000 hrs Storm Tag Name = PYe100 ____ _____ __ _________________________ - Data Type, File, ID Synthetic Storm TypeII 24hr Storm Frequency = 100 yr Total Rainfall Depth= 11.5000 in Duration Multiplier = 1 Resulting Duration = 24.0000 hrs Resulting Start Time= .0000 hrs Step= .1000 hrs End= 24.0000 hrs SIN: 121EOIC0709D Bartlett Engineering and Surveying, PC v �1i1 PondPack Ver. 9.0091 Time: 11:09 AM Date: 1/10/2012 FEB 0 2 2012 BY: Type. . . . Tc Calcs Page 3.01 Name. . . . PRE-DEV File. . . . P:\_PROJECT FILES\CCCCPOND\P5 PRE.PPW TIME OF CONCENTRATION CALCULATOR -------------------------------------------------------------- ---------- Segment 41: TC: SCS Lag Hydraulic Length 361.00 ft Runoff CN 55 Slope .002770 ft/ft Avg.Velocity .11 ft/sec Segment #1 Time; .8746 hrs ------------------------------------------------------------------------- Total Tc: .8746 hrs SIN: 121ROIC0709D Bartlett Engineering and Surveying PC �IVED PondPack Ver. 9.0041 Time: 11:09 AM Date: 1/10/2012 CEE FEB 0 2 2012 Type. . . . Tc Calcs Page 3.02 Name. . . . PRE-DEV File. . . . P:\_PROJECT FILES\CCCCPOND\PS PRE.PPW -------------------- _ _-------___--------_--_-_-- Tc Equations used. . . ------------------------------------------------------------------------ SCS Lag Tc = 0.000877 * (Lf**0.8) * ( (1000/CN) - 9)**0.7) * (Sf**-0.5) Where: Tc = Time of concentration, hrs Lf = Flow length, ft CN = SCS Curve Number Sf = Slope, ft/ft SIN: 121EOIC0709D Bartlett Engineering and Surveying, PC ♦ �CCL� 7 4 D PORdPaCk Ver. 9.0041 Time: 11:09 AM Date: 1/10/2012 `Y FEB 0 2 .2012 BY: Type. . . . Runoff CN-Area Page 4.01 Name. . . . PRE-DEV File. . . . P:\_PROJECT FILES\CCCCPOND\PS PRE.PPW RUNOFF CURVE NUMBER DATA -------------------------------------------------------------------------- Impervious Area Adjustment Adjusted Soil/Surface Description CN acres tC tuc CN , -------------------------------- ---- --------- ----- ----- ------ Woods - good 55 3.570 55.00 COMPOSITE AREA 6 WEIGHTED CN ---> 3.570 55.00 (55) SIN: 121E0IC0709D Bartlett Engineering and Surveying; PC Pond Pack Ver. 9.0041 Time: 11:09 AM Date: 1/10/2012 FEB 0 2 2M2 F3Y: Type. . . . Unit Hyd. Equations Page 5.01 Name. . . . File. . . . P:\_PROJECT FILES\CCCCPOND\PS PRE.PPW SCS UNIT HYDROGRAPH METHOD (Computational Notes) DEFINITION OF TERMS: ------------------------------------------------ At :: Total area (acres) : At is Ai+Ap Ai is Impervious area (acres) Ap is Pervious area (acres) CNi is Runoff curve number for impervious area CNp _ Runoff curve number for pervious area fLoss = f loss constant infiltration (depth/time) gxs .= Saturated Hydraulic Conductivity (depth/time) Md = Volumetric Moisture Deficit Psi := Capillary Suction (length) hK is Horton Infiltration Decay Rate (time-1) fo is Initial Infiltration Rate (depth/time) fc is Ultimate(capacity)Infiltration Rate (depth/time) Ia is Initial Abstraction (length) dt is Computational increment (duration of unit excess rainfall) Default dt is smallest value of 0.1333Tc, rtm, and th (Smallest dt is then adjusted to match up with Tp) UDdt is User specified override computational main time increment (only used if UDdt is => .1333Tc) D(t) is Point on distribution curve (fraction of P) for time step t K = 2 / (1 + (Tr/Tp) ) : default K = 0.75: (for Tr/Tp = 1.67) Ks = Hydrograph shape factor is Unit Conversions * K: ((lhr/3600sec) * (lft/12in) * ( (5280ft)**2/sq.mi)) * K Default Ks = 645.333 * 0.75 is 484 Lag is Lag time from center of excess runoff (dt) to Tp: Lag = 0.6Tc P is Total precipitation depth, inches Pa(t) is Accumulated rainfall at time step t Pi(t) = Incremental rainfall at time step t qp = Peak discharge (cfs) for lin. runoff, for lhr, for 1 sq.mi. is (Ks * A * Q) / Tp (where Q = lin. runoff, A=sq.mi.) Qu(t) = Unit hydrograph ordinate (cfs) at time step t Q(t) = Final hydrograph ordinate (cfs) at time step t Rai(t)= Accumulated runoff (inches) at time step t for impervious area Rap(t)= Accumulated runoff (inches) at time step t for pervious area Rii(t)= Incremental runoff (inches) at time step t for impervious area Rip(t)= Incremental runoff (inches) at time step t for pervious area R(t) = Incremental weighted total runoff (inches) Rtm = Time increment for rainfall table Si = S for impervious area: Si is (1000/CNi) - 10 Sp = S for pervious area: Sp is (1000/CNp) - 10 t = Time step (row) number Tc = Time of concentration Tb = Time (hrs) of entire unit hydrograph: Tb is Tp + Tr Tp is Time (hrs) to peak of a unit hydrograph: Tp is (dt/2) + Lag Tr is Time (hrs) of receding limb of unit hydrograph: Tr = ratio of Tp SIN: 123E•11C0709D Bartlett Engineering and Surveying, PC RE`Lil' ZV11` D PondPack Ver. 9.0041 Time: 11:09 AM Date: 1/10/2012 FEB U 2 2012 RY: Type. .. . Unit Hyd. Equations Page 5.02 Name. . . . File. . . . P:\_PROJECT FILES\CCCCPOND\PS PRE.PPW SCS UNIT HYDROGRAPH METHOD (Computational Notes) PRECIPITATION: ------------------ _------_-__-----_ ---_-- Column (1) : Time for time step t Column (2) : D(t) = Point on distribution curve for time step t Column (3) : Pi(t) = Pa(t) - Pa(t-1) : C01. (4) - Preceding Col. (4) Column (4) : Pa(t) = D(t) x P: Col. (2) x P PERVIOUS AREA RUNOFF (using SCS Runoff CN Method) ------------------------ Column (5) : Rap(t) = Accumulated pervious runoff for time step t If (Pa(t) is <= 0.2Sp) then use: Rap(t) = 0.0 If (Pa(t) is > 0.2Sp) then use: Rap(t) = (Co1. (4)-0.2Sp)**2 / (Col. (4)+0.8Sp) Column (6) : Rip(t) = Incremental pervious runoff for time step t Rip(t) = Rap(t) - Rap(t-1) Rip(t) = Col. (5) for current row - Col. (5) for preceding row. IMPERVIOUS AREA RUNOFF ------------------------------------ _----- Column (7 & 8) . . . Did not specify to use impervious areas. INCREMENTAL WEIGHTED RUNOFF: --------------------------------------------- Column (9) : R(t) = (AP/At) x Rip(t) + (Ai/At) x Rii(t) R(t) = (AP/At) x Col. (6) + (Ai/At) x Col. (8) SCS UNIT HYDROGRAPH METHOD: ---------------------------------------------- Column (10) : Q(t) is computed with the SCS unit hydrograph method using R() and Qu() . SIN: 121EOIC0709D Bartlett Engineering and Surveying, PC J"r l�'`y t, )-}�T"� Pond Pack Ver. 9.0041 Time: 11:09 AM Date: 1/10/2012 `1�� V l.�.D FEB 0 2 .2012 BY: Type. . . . Unit Hyd. Summary Page 5.03 Name. . . . PRE-DEV Tag: Pre 1 Event: 1 yr File. . . . P:\_PROJECT FILES\CCCCPOND\PS PRE.PPW Storm. . . TypeII 24hr Tag: Pre 1 SCS UNIT HYDROGRAPH METHOD STORM EVENT: 1 year storm Duration = 24.0000 hrs Rain Depth = 3.6000 in Rain Dir = P:\_PROJECT FILES\CCCCPOND\ Rain File -ID = - TypeII 24hr Unit Hyd Type = Default Curvilinear HYG Dir = P:\_PROJECT FILES\CCCCPOND\ HYG File - ID = - PRE-DEV Pre 1 Tc = .8746 hrs Drainage Area = 3.570 acres Runoff CN= 55 Computational Time Increment = .11662 his Computed Peak Time = 12.5944 hrs Computed Peak Flow = .43 cfs Time Increment for HYG File = .0500 hrs Peak Time, Interpolated Output = 12.6000 hrs Peak Flow, Interpolated Output = .43 cfs DRAINAGE AREA ------------------- ID:PRE-DEV CN = 55 Area = 3.570 acres S = 8.1818 in 0.2S = 1.6364 in Cumulative Runoff ------------------- .3801 in .113 ac-ft HYG Volume. . . .113 ac-ft (area under HYG curve) "— SCS UNIT HYDROGRAPH PARAMETERS ....• Time Concentration, TC = .87461 hrs (ID: PRE-DEV) Computational Incr, Tm = .11662 hrs = 0.20000 Tp Unit Hyd. Shape Factor = 483.432 (37.46% under rising limb) K = 483.43/645.333, K = .7491 (also, K = 2/(1.(Tr/Tp)) Receding/Rising, Tr/Tp = 1.6698 (solved from K = .7491) Unit peak, gp = 4.62 cfs Unit peak time Tp = .58307 hrs Unit receding limb, Tr = 2.33230 hrs Total unit time, Tb = 2:91537 hrs S/N: 121EO1C0709D Bartlett Engineering and Surveying, PC IE+C iLl: D PondPack Ver. 9.0041 Time: 11:09 AM Date: 1/10/2012 FEB 0 2, 2012 BY: Appendix A A-1 Index Of Starting Page Numbers for ID Names JACKSONVILLE. . . 2.01 _____ P _____ PRE-DEV. . . 3.01, 4.01, 5.03 _____ W _____ Watershed. . . 1.01 SIN: 121E01C0909D Bartlett Engineering and Surveying, PC �.It� `li 1u `V -D Pond Pack Ver. 9.0041 Time: 11:09 AM Date: 1/10/2012 FEB 0 2 2012 BY: Job File: P:\_PROJECT FILES\CCCCPOND\P5 POST.PPW Rain Dir: P:\_PROJECT FILES\CCCCPOND\ _----=-=JOB TITLE====_____ Project Date: 1/9/2012 Project Engineer: Robert S. Bartlett Project Title: Watershed ProjeCt Comments: r - SIN: 121EO1C0709D Bartlett Engineering and Surveying, PC PondPack Per. 9.0041 Time: 11:07 AM Date: 1/10/2012 FEB U 2 2012 ByY Table ol: Contents i Table of Contents ...+...x+++........+... MASTER SUMMARY +.+...+..:...ar.aa.... watershed. . . . . . . Master Network Summary . . . . . . . . . . . . . 1.01 +....a....a+...... DESIGN STORMS SUMMARY ••••••••+......:..+ ,JACKSONVILLE. . . . Design Storms . . . . . . . . . . . . . . . . . . . . . . 2.01 """'•"""••^"*• TC CALCULATIONS *••••••..•.•.•aa.a..x POST-DEV. . . . . . . . TC Calas . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.01 .+.......+.......+.... CN CALCULATIONS •'••'aaa.....a.a..a.. POST-DEV. . . . . . . . Runoff CN-Area . . . . . . . . . . . . . . . . . . . . . 4.01 +.a....+..a.a...+a+. RUNOFF HYDROGRAPHS Unit Hyd. Equations . . . . . . . . . . . . . . . . 5.01 POST-DEV. . . . . . . . Dev 1 Unit Hyd. Summary . . . . . . . . . . . . . . . . . . 5.03 ............+a.......a. POND VOLUMES a.....a:a.a...a.+..+... POND 10. . . . . . . . . Vol: Elev-Area . . . . . . . . . . . . . . . . . . . . . 6.01 SIN: 121EC•1C0709D Bartlett Engineering and Surveying, PC .i.iL `Y ✓._J� PondPa ck Ver. 9.0041 Time: 11:07 AM Date: 1/10/2012 FEB © 2 .2012 BY:�_ Table of Contents Table of Contents (continued) `••••"••••••+'+•••+ OUTLET STRUCTURES •'*'•*+*•*+•*••*+++•+ Outlet 2. . . . . . . . Outlet Input Data . . . . . . . . . . . . . . . . . . 7.01 Individual Outlet Curves . . . . . . . . . . . 7.04 Composite Rating Curve . . . . . . . . . . . . . 7.08 SIN! 121E01C0709D Bartlett Engineering and Surveying, PC _ PondPack Ver. 9.0041 Time: 11:07 AM Date: 1/10/2012 - 4 FEB 0 2 2012 '.3Y: Type. . . . Master Network Summary Page 1.01 Name. . . . Watershed File. . . . P:\_PROJECT FILES\CCCCPOND\PS POST.PPW MASTER DESIGN STORM SUMMARY Network Storm Collection: JACKSONVILLE Total Depth Rainfall Return Event in Type RNF ID Dev 1 3.6000 Synthetic Curve TypeII 24hr Dev 2 4.3800 Synthetic Curve TypeII 24hr Dev 10 6.7700 Synthetic Curve TypeII 24hr Dev 25 8.4300 Synthetic Curve TypeII 24hr Dev100 11.5000 Synthetic Curve TypelI 24hr MASTER NETWORK SUMMARY SCS Unit Hydrograph Method ('Node=Outfall; +Node=Diversion;) (Trun= HYG Truncation: Blank=None; L=Left; R=Rt; LR=Left4Rt) Max Return HYG Vol ppeak Opeak Max WSEL Pond Storage Node ID Type Event ac-ft Trun hrs cfs ft ac-ft ____ ______ __ _________ ________ ____________ •OUT 30 JCT 1 .509 14.1500 .40 -OUT 10 JCT 2 .703 12.9500 1.34 •OUT 10 JCT 10 1.339 12.4500 7.91 'OUT 10 JCT 25 1.802 12.3500 13.91 -OUT 10 JCT 100 2.677 12.3000 23.33 POND 10 IN POND 1 .532 12.2000 5.41 POND 30 IN POND 2 .727 12.2000 7.42 POND 10 IN POND 10 1.366 12.2000 13.82 POND 10 IN POND 25 1.829 12.1500 18.36 POND 10 IN POND 100 2.706 12.1500 26.79 POND 10 OUT POND 1 .509 14.1500 .40 39.29 .339 POND 10 OUT POND 2 .703 12.9500 1.34 39.40 .391 POND 10 OUT POND 10 1.339 12.4500 7.91 39.72 .547 POND 10 OUT POND 25 1.802 12.3500 13.91 39.87 .621 POND 10 OUT POND 100 2.677 12.3000 23.33 40.07 .721 SIN: 121EClC0709D Bartlett Engineering and Surveying, PC PondPa Ck Ver. 9.0041 Time: 11:07 AM Date: 1/10/2012 Il'i1L��J�,1 Y J�•,� FEB 0 2 2012 ,BY: Type. . . . Master Network Summary Page 1.02 Name. . . . Watershed File. . . . P:\_PROJECT FILES\CCCCPOND\PS POST.PPW MASTER NETWORK SUMMARY SCS Unit Hydrograph Method (+Node=Outfall; +Node=Diversion;) (True= HYG Truncation: Blank=None; L=Left; R=Rt; LR=Left6Rt) Max Return HYG Vol Qpeak Qpeak Max WSEL Pond Storage Node ID Type Event ac-ft Trun his cfs ft ac-ft ____________ POST-DEV AREA 1 .532 12.2000 5.41 POST-DEV AREA 2 .727 12.2000 7.42 POST-DEV AREA 10 1.366 12.2000 13.82 POST-DEV AREA 25 1.829 12.1500 18.36 POST-DEV AREA 100 2.706 12.1500 26.79 SIN: 121FOIC0709D Bartlett Engineering and Surveying, PC PondPack Ver. 9.0041 Time: 11:07 AM Date: 1/10/2012 s-�- FEB 0 2 2012 BY: Type. . . . Design Storms Page 2.01 Name. . . . JACKSONVILLE File. . . . P:\_PROJECT FILES\CCCCPOND\ Title. . . Project Date: 1/9/2012 Project Engineer: Robert S. Bartlett Project Title: Watershed Project Comments: DESIGN STORMS SUMMARY Design Storm File,ID = JACKSONVILLE Storm Tag Name = Dev 1 ___ __ _________________________________________ Data Type, File, ID = Synthetic Storm TypeII 24hr Storm Frequency = 1 yr Total Rainfall Depth= 3.6000 in Duration Multiplier = 1 Resulting Duration = 24.0000 hrs Resulting Start Time= .0000 hrs Step= .1000 hrs End= 24.0000 hrs Storm Tag Name = Dev 2 ---------------------------------------------------------------------- Data Type, File, ID = Synthetic Storm Typell 24hr Storm Frequency = 2 yr Total Rainfall Depth= 4.3800 in Duration Multiplier = 1 Resulting Duration = 24.0000 hrs Resulting Start Time= .0000 hrs Step= .1000 hrs End= 24.0000 hrs Storm Tag Name = Dev 10 ---------------------------------------------------------------------- Data Type, File, ID = Synthetic Storm TypeIT 24hr Storm Frequency = 10 yr Total Rainfall Depth= 6.7700 in Duration Multiplier = 1 Resulting Duration = 24.0000 hrs Resulting Start Time= .0000 hrs Step= .1000 hrs End= 24.0000 hrs Storm Tag Name = Dev 25 _________________________________________ _ _______ Data Type, File, ID = Synthetic Storm TypeII 24hr Storm Frequency = 25 yr Total Rainfall Depth= 8.4300 in Duration Multiplier = 1 Resulting Duration = 24.0000 hrs Resulting Start Time= .0000 hrs Step= .1000 hrs End= 24.0000 hrs Storm Tag Name = Dev100 _____ _____________________________________ __ Data Type, File, ID = Synthetic Storm TypeII 24hr Storm Frequency = 100 yr Total Rainfall Depth= 11.5000 in Duration Multiplier = 1 Resulting Duration = 24.0000 hrs Resulting Start Time= .0000 hrs Step= .1000 hrs End= 24.0000 hrs SIN: 121E01CO709D Bartlett Engineering and Surveying, PCfM1^ y p l,� POndPa Ck Ver. 9.0041 Time: 11:07 AM Date: 1/10/2012 � ✓1 to FEB 0 � 2012 Type. . . . Tc Calcs Page 3.01 Name. . . . POST-DEV File. . . . P:\—PROJECT FILES\CCCCPOND\P5—POST.PPW TIME OF CONCENTRATION CALCULATOR ------------------------------------------------------------------------ Segment 41: Tc: SCS Lag Hydraulic Length 624.00 ft Runoff CN 81 Slope .005000 ft/ft Avg.Velocity .35 ft/sec Segment #1 Time: .4975 hrs ------------------------------------------------------------------------ Total Tc: .4975 hrs SIN: 121ECIlC0709D Bartlett Engineering and Surveying, PC PondPaCk Ver. 9.0041 Time: 11:07 AN Date: 1/10/2012 LV FEB 0 2 Z012 .' - - Type. . . . Tc Calcs Page 3.02 Name. . . . POST-DEV - File. . . . P:\_PROJECT FILES\CCCCPOND\PS POST.PPW _______________________ ________________________ _____ Tc Equations used. . . ________________________________________________________________________ SCS Lag Tc = 0.000877 ` (Lf`•0.8) * ((5000/CN) - 9)--0.7) ` (Sf••-0.5) Where: Tc = Time of concentration, bra Lf = Flow length, ft CN = SCS Curve Number Sf = Slope, ft/ft SIN: 121EOIC0709D Bartlett Engineering and Surveying, PC PondPack Ver. 9.0041 Time: 11:07 AM Date: 1/10/2012 .7 `f` ? �- Y-'�^-�• FEB 0 2 2012 Type. . . . Runoff CN-Area Page 4.01 Name. . . . POST-DEV File. . . . P:\_PROJECT FILES\CCCCPOND\PS POST.PPW RUNOFF CURVE NUMBER DATA __________________________________________________________________________ Impervious Area Adjustment Adjusted Soil/Sui:face Description CN acres tC %UC CN ________________________ ____ _____ _____ ------ Impervious Areas - Paved parking to 98 1.910 98.00 Open space (Lawns,parks etc.) - Goo 61 1.660 61.00 COMPOSITE AREA & WEIGHTED CN ---> 3.570 80.80 (81) SIN: 121EOIC0709D Bartlett Engineering and Surveying, PC - --- �7 PondPack Ter. 9.0041 Time: 11:07 AM Date: 1/10/2012 _ �,1 v _'t `y ZD FEB 0 2 2012 Type. . . . Unit Hyd. Equations Page 5.01 Name. . . . File. . . . P:\_PROJECT FILES\CCCCPOND\PS POST.PPW SCS UNIT HYDROGRAPH METHOD (Computational Notes) DEFINITION OF TERMS: ------------------------------------------------ At == Total area (acres) : At = Ai+Ap Ai == Impervious area (acres) Ap = Pervious area (acres) CNi = Runoff curve number for impervious area CNp = Runoff curve number for pervious area £Loss = f loss constant infiltration (depth/time) gKs = Saturated Hydraulic Conductivity (depth/time) Md = Volumetric Moisture Deficit Psi = Capillary Suction (length) hK = Horton Infiltration Decay Rate (time'-1) fo = Initial Infiltration Rate (depth/time) fc = Ultimate(capacity)Infiltration Rate (depth/time) is = Initial Abstraction (length) dt = Computational increment (duration of unit excess rainfall) Default dt is smallest value of 0.1333Tc, rtm, and th (Smallest dt is then adjusted to match up with Tp) UDdt = User specified override computational main time increment (only used if UDdt is => .1333TC) D(t) = Point on distribution curve (fraction of P) for time step t K = 2 / (1 ♦ (Tr/Tp)) : default K = 0.75: (for Tr/Tp = 1.67) Ks = Hydrograph shape factor = Unit Conversions = K: = ( (lhr/3600sec) • (lft/12in) - ( (5280ft)••2/sq.mi)) • K Default Ks = 645.333 ` 0.75 = 484 Lag = Lag time from center of excess runoff (dt) to Tp: Lag = 0.6Tc P = Total precipitation depth, inches Pa(t) = Accumulated rainfall at time step t Pi(t) = Incremental rainfall at time step t qp = Peak discharge (cfs) for tin, runoff, for ihr, for 1 sq.mi. = (Ks - A • Q) / Tp (where Q = lin. runoff, A=sq.mi.) Qu(t) = Unit hydrograph ordinate (cfs) at time step t Q(t) = Final hydrograph ordinate (cfs) at time step t Rai(t)= Accumulated runoff (inches) at time step t for impervious area Rap(t)= Accumulated runoff (inches) at time step t for pervious area Rii(t)= Incremental runoff (inches) at time step t for impervious area Rip(t)= Incremental runoff (inches) at time step t for pervious area R(t) = Incremental weighted total runoff (inches) Rtm = Time increment for rainfall table Si = S for impervious area: Si = (1000/CNi) - 10 Sp = S for pervious area: Sp = (1000/CNp) - 10 t = Time Step (row) number Tc = Time of concentration Tb = Time (hrs) of entire unit hydrograph: Tb = Tp ♦ Tr Tp = Time (hrs) to peak of a unit hydrograph: Tp = (dt/2) t Lag Tr = Time (hrs) of receding limb of unit hydrograph: Tr = ratio of Tp SIN: 121EU1C0709D Bartlett Engineering and Surveying, PC PondPack Ver. 9.0041 Time: 11:07 AM Date: 1/10/2012 F EB 0 2 2012 BX:�_ Type. . . . Unit Hyd. Equations Page 5.02 Name. . . . File. . . . P:\_PROJECT FILES\CCCCPOND\PS POST.PPW SCS UNIT HYDROGRAPH METHOD (Computational Notes) PRECIPITATION: ----------------------- _------_ Column (1) : Time for time step t Column (2) : D(t) = Point on distribution curve for time step t Column (3) : Pi(t) = Pa(t) - Pa(t-1) : Col. (4) - Preceding Col. (4) Column (4) : Pa(t) = D(t) x P: Col. (2) x P PERVIOUS AREA RUNOFF (using SCS Runoff CN Method) -- -------------- Column (5) : Rap(t) = Accumulated pervious runoff for time step t If (Pa(t) is <= 0.2Sp) then use: Rap(t) = 0.0 If (Pa(t) is > 0.2Sp) then use: Rap(t) _ (Col. (4)-0.2SP)`-2 / (Ccl. (4)+0.8Sp) Column (6) : Rip(t) = Incremental pervious runoff for time step t Rip(t) = Rap(t) - Rap(t-1) Rip(t) = Col. (5) for current row - Col. (5) for preceding row. IMPERVIOUS AREA RUNOFF ------------------ --------_-----------_--- Column (7 & 8) . . . Did not specify to use impervious areas. INCREMENTAL WEIGHTED RUNOFF: ----------------------- _-_---------- Column (9) : R(t) _ (Ap/At) x Rip(t) + (Ai/At) x Rii(t) R(t) _ (AP/At) x Col. (6) + (Ai/At) x Col. (8) SCS UNIT HYDROGRAPH METHOD: ----------------- _------__-_------_-- Column (10) : Q(t) is computed with the SCS unit hydrograph method using RO and Quo . SIN: 121EOIC0709D Bartlett Engineering and Surveying, PC PondPack Ver. 9.0041 Time: 11:07 AM Date: 1/10/2012 FEB U 2 2012 ,v- Type. . . . Unit Hyd. Summary Page 5.03 Name. . . . POST-DEV Tag: Dev 1 Event: 1 yr File. . . . P:\_PROJECT FILES\CCCCPOND\PS_POST.PPW Storm. . . TypeII 24hr Tag: Dev 1 SCS UNIT HYDROGRAPH METHOD STORM EVENT: 1 year Storm Duration = 24.0000 hrs Rain Depth = 3.6000 in Rain Dir = P:\_PROJECT FILES\CCCCPOND\ Rain File -ID = - TypeII 24hr Unit Hyd Type = Default Curvilinear HYG Dir = P:\_PROJECT FILES\CCCCPOND\ HYG File - ID = work_pad.hyg - POST-DEV Dev 1 Tc = .4975 hrs Drainage Area = 3.570 acres Runoff CN= 81 Computational Time Increment = 06633 hrs Computed Peak Time = 12.2056 hrs Computed Peak Flow = 5.42 cfs Time Increment for HYG File = .0500 hrs Peak Time, Interpolated Output = 12.2000 hrs Peak Flow, Interpolated Output = 5.41 cfs DRAINAGE AREA ------------------- 1D:POST-DEV CN = 81 Area = 3.570 acres S = 2.3457 in 0.2S = .4691 in Cumulative Runoff ------------------- 1.7899 in .532 ac-ft HYG Volume. . . .532 ac-ft (area under HYG curve) "'•• SCS UNIT HYDROGRAPH PARAMETERS ...•+ Time Concentration, Tc = .49751 hrs (ID: POST-DEV) Computational Incr, Tm = .06633 hrs = 0.20000 Tp Unit Hyd. Shape Factor = 483.432 (37.46% under rising limb) K = 483.43/645.333, K = .7491 (also, K = 2/(1+(Tr/Tp)) Receding/Rising, Tr/Tp = 1.6698 (solved from K = .7491) Unit peak, qp = 8.13 cfs Unit peak time Tp = .33167 hrs Unit receding limb, Tr = 1.32669 hrs Total unit time, Tb = 1.65837 hrs SIN: 121EO1C0709D Bartlett Engineering and Surveying, PC /'v}J � T_ PondPack Ver. 9.0041 Time: 11:07 AM Date: 1/10/2012 Y'La`4 CEA l V i/ FEB 0 2 201"2 I3X: Type. . . . Vol: Elev-Area Page 6.01 Name. . . . POND 10 File. . . . P:\_PROJECT FILES\CCCCPOND\PS POST.PPW Elevation Planimeter Area Al+A2+sgr(A1•A2) Volume Volume Sum (ft) (sq.in) (acres) (acres) (ac-ft) (ac-ft) ----------------------------" -----------_---------_---------- 38.50 ----- .3739 .0000 .000 .000 39.00 ----- .4543 1.2403 .207 .207 40.00 ----- .5045 1.4375 .479 .686 41.00 ----- .5563 1.5906 .530 1.216 POND VOLUME EQUATIONS Incremental volume computed by the Conic Method for Reservoir Volumes. Volume = (1/3) • (EL2-EL1) • (Areal + Area2 + sq.rt. (Areal•Area2)) where: EL1, EL2 Lower and upper elevations of the increment Areal,Area2 = Areas computed for ELI, EL2, respectively Volume = Incremental volume between EL1 and EL2 SIN: 121EO1C0709D Bartlett Engineering and Surveying, PC .f'41�7PQ 7 Pond Pack Ver. 9.0041 Time: 11:07 AM Date: 1/10/2012 'liJLi11 !/ FEB 0 2 .2012 73Y:�_ Type. . . . Outlet Input Data Page 7.01 Name. . . . Outlet 2 File. . . . P:\_PROJECT FILES\CCCCPOND\PS POST.PPW REQUESTED POND WE ELEVATIONS: Min. Elev.= 38.50 ft Increment = .25 ft Max. Elev.= 41.00 ft OUTLET CONNECTIVITY ara+aa.ru rrr+aaaarrraaaaa•:rraa++a.a urra«u. ---> Forward Flow Only (UpStream to DnStream) <--- Reverse Flow Only (DnStream to UpStream) <---> Forward and Reverse Both Allowed Structure No. Outfall E1, ft E2, ft ____________ -___ ------- --------- _______-_ Weir-Rectangular WR ---> TW 39.500 41.000 Inlet: Box IB ---> CV 39.250 41.000 Orifice-Circular 01 ---> CV 38.500 41.000 Culvert-Circular CV ---> TW 38.400 41.000 TW SETUP, US Channel SIN: 121EOIC0709D Bartlett Engineering and Surveying, PC .�' � PondPa Ck Ver. 9.0041 Time: 11:07 AM Date: 1/10/2012 FEB 0 2 2012 Type. . . . Outlet Input Data Page 7.02 Name. . . . Outlet 2 File. . . . P:\_PRO.IECT PILES\CCCCPOND\PS POST.PPW OUTLET STRUCTURE INPUT DATA Structure ID = WR Structure Type = Weir-Rectangular _____________ # of Openings = 1 Crest Elev. = 39.50 ft Weir Length = 16.00 ft Weir Coeff. = 2.800000 Weir TW effects (Use adjustment equation) Structure ID = IB Structure Type = Inlet Box ____________________________________ # of Openings = I invert Elev. = 39.25 ft Orifice Area = 3.5000 sq.ft Orifice Coeff. _ .600 weir Length = 8.00 ft Weir Coeff. = 2.800 x, Submerged = .000 x, Reverse = 1.000 Kb,Barrel = .000000 (per ft of full flow) Barrel Length = .00 ft Mannings n = .0000 Structure ID = 01 Structure Type = Orifice-Circular ____________________________________ # of Openings = 1 Invert Elev. = 38.50 ft Diameter = .1667 ft Orifice Coeff. _ .600 SIN: 121EQIC0709D Bartlett Engineering and Surveying, PC ll' E`�.)'�"�y PondPack Ver. 9.0042 Time: 11:07 AM Date: 1/10/2012 FEB 0 2 2012 BY:_ _ Type. . . . Outlet Input Data Page 7.03 Name. . . . Outlet 2 File. . . . P:\_PRO.7ECT FILES\CCCCPOND\PS POST.PPW OUTLET STRUCTURE INPUT DATA Structure ID = CV Structure Type = Culvert-Circular ------------------------------------ No. Barrels = 1 Barrel Diameter = 1.2500 ft Upstream Invert = 38.40 ft Dnstream Invert = 38.40 ft Horiz. Length = 115.00 ft Barrel Length = 115.00 ft Barrel Slope = .00000 ft/ft OUTLET CONTROL DATA. . . Mannings n = .0150 Re = .0000 (forward entrance loss) Kb = .030922 (per ft of full flow) Kr _ .5000 (reverse entrance loss) HW Convergence = .001 +/- ft INLET CONTROL DATA. . . Equation form = 1 Inlet Control K = .0078 Inlet Control M = 2.0000 Inlet Control c = .03790 Inlet Control Y = .6900 T1 ratio (HW/D) = 1.136 T2 ratio (HW/D) = 1.296 Slope Factor = -.500 Use unsubmerged inlet control Form 1 equ. below T1 elev. Use submerged inlet control Form 1 equ. above T2 elev. In transition zone between unsubmerged and submerged inlet control, interpolate between flows at T1 6 T2. . . At T1 Elev = 39.82 ft ---> Flow = 4.80 cfs At T2 Elev = 40.02 ft ---> Plow = 5.49 cfs Structure ID = TW Structure Type = TW SETUP, DS Channel ------------------------------------ FREE OUTFALL CONDITIONS SPECIFIED CONVERGENCE TOLERANCES. . . Maximum Iterations= 30 Min. TW tolerance = .01 ft Max. TW tolerance = .01 ft Min. HW tolerance = .01 ft Max. HW tolerance = .01 ft Min. Q tolerance = .10 cfs Max. Q tolerance = .10 cfs SIN: 121EOIC0709D Bartlett Engineering and Surveying, PC POndPack Ver. 9.0041 Time: 11:07 AM Date: 1/10/2012 FEB 0 2 2012 BY: Type. . . . Individual Outlet Curves Page 7.04 Name. . . . Outlet 2 File. . . . P:\_PROJECT PILES\CCCCPOND\PS POST.PPW RATING TABLE FOR ONE OUTLET TYPE Structure ID = WR (Weir-Rectangular) -------------------------------------- Upstream ID = (Pond water Surface) DNstream ID = TW (Pond Outfall) WE Elev,Device Q Tail Water Notes ---------------- --------------- ---- _------__-_-- WE Elev. Q TW Elev Converge ft cfs ft /-ft Computation Messages -------- ------- ------- ----- ------" __------__ 36.50 .00 Free Outfall WS below an invert; no flow. 38.75 .00 Free Outfall WE below an invert; no flow. 39.00 .00 Free Outfall WS below an invert; no flow. 39.25 .00 Free Outfall WE below an invert; no flow. 39.50 .00 Free Outfall WS below an invert; no flow. 39.75 5.60 Free Outfall H=.25; Htw=.00; Qfree=5.60; 40.00 15.84 Free Outfall H=.50; Htw=.00; Qfree=15.84; 40.25 29.10 Free Outfall H=.75; Htw=.00; Qfree=29.10; 40.50 44.80 Free Outfall H=1.00; Htw=.00; Qfree=44.80; 40.75 62.61 Free Outfall H=1.25; Htw=.00; Qfree=62.61; 41.00 82.30 Free Outfall H=1.50; Htw=.00; Qfree=82.30; SIN: 121E01C0709D Bartlett Engineering and Surveying, PC '�^ PondPack Ver. 9.0041 Time: 11:07 AM Date: 1/10/2012 - t-" -V ED FEB 0 2 .2012 Type. . . . Individual Outlet Curves Page 7.05 Name. . . . Outlet 2 File. . . . P:\_PROTECT FILES\CCCCPOND\PS POST.PPW RATING TABLE FOR ONE OUTLET TYPE Structure ID = IS (Inlet Box) ----- ------------------------- Upstream ID = (Pond Water Surface) DNstream ID = CV (Culvert-Circular) Pond WE. Device (into) Converge Next US HGL Q SUM US Chan. TW Elev. Q HW HGL US HGL US HGL Error Error TW Error ft ofs ft ft ft +/-ft +/-cfs ft +/-ft -------- -------- ------- -------- ------- ------ ------ ------- ------- 38.50 .00 . . . . . . . . . . . . . . . Free Outfall WS below an invert; no flow. 38.75 .00 . . . . . . . . . . . . . . . Free Outfall WS below an invert; no flow. 39.00 .00 . . . . . . . . . Free Outfall WS below an invert; no flow. 39.25 .00 . . . . . . . . . . . . . . . Free Outfall WS below an invert; no flow. 39.50 2.23 39.50 39.50 39.50 .000 .000 Free Outfall US HGL+Loss > crest: Flow set to Downstream outlet. 39.75 3.05 39.75 39.75 39.75 .000 .000 Free Outfall US HGL+Loss > crest: Flow set to Downstream outlet. 40.00 3.67 40.00 40.00 40.00 .000 .000 Free Outfall US HGL+LOss > crest: Flow set to Downstream outlet. 40.25 4.22 40.25 40.25 40.25 .000 .000 Free Outfall US HGL+Loss > crest: Flow set to Downstream outlet. 40.50 4.73 40.50 40.50 40.50 .000 .000 Free Outfall US HGL+Loss > crest: Flow set to Downstream Outlet. 40.75 5.19 40.75 40.75 40.75 .000 .000 Free Outfall US HGL+Loss > crest: Flow set to Downstream outlet. 41.00 5.63 41.00 41.00 41.00 .000 .000 Free Outfall DS HGL+Loss > crest: Flow set to Downstream outlet. SIN: 121EOIC0709D Bartlett Engineering and Surveying, PC � ' PondPack Ver. 9.0041 Time: 11:07 AM Date: 1/10/2012 FEB 0 2 2012 Type. . . . Individual Outlet Curves Page 7.06 Name. . . . Outlet 2 File. . . . P:\_PROJECT FILES\CCCCPOND\PS POST.PPW RATING TABLE FOR ONE OUTLET TYPE Structure ID = 01 (Orifice-Circular) -------------------------------------- Upstream ID = (Pond Water Surface) DNstream ID = CV (Culvert-Circular) Pond WS. Device (into) Converge Next DS HGL Q SUM US Chan. TW Elev. Q HW HGL US HGL US HGL Error Error TW Error ft cfs ft ft ft +/-ft +/-cfs ft +/-ft -------- -------- ------- -------- ------- ------ ------ ------- ------- 38.50 .00 . . . . . . . . . . . . . . . Free Outfall WS below an invert; no flow. 38.75 .04 38.75 38.59 38.59 .001 .000 Free Outfall H =.16 39.00 .06 39.00 38.62 39.62 .005 .000 Free Outfall H =.36 39.25 .08 39.25 38.65 38.64 .005 .000 Free Outfall H =.60 39.50 .00 39.50 39.50 39.50 .000 .000 Free Outfall Full riser flow. Q=0 this opening. 39.75 .00 39.75 39.75 39.75 .000 .000 Free Outfall Full riser flow. Q=0 this opening. 40.00 .00 40.00 40.00 40.00 .000 .000 Free Outfall Full riser flow. 0=0 this opening. 40.25 .00 40.25 40.25 40.25 .000 .000 Free Outfall Full riser flow. Q=o this opening. 40.50 .00 40.50 40,50 40.50 .000 .000 Free Outfall Full riser flow. Q=0 this opening. 40.75 .00 40.75 40.75 40.75 .000 .000 Free Outfall Full riser flow. Q=0 this opening. 41.00 .00 41.00 41.00 41.00 .000 .000 Free Outfall Full riser flow. Q=0 this opening. SIN: 121EDIC0709D Bartlett Engineering and Surveying, PC RECIZI;i N E'sl'. J PondPa Ck Ver. 9.0041 Time: 11:07 AM Date: 1/10/2012 FEB 0 2 .2012 BY: Type. . . . Individual Outlet Curves Page 7.07 Name. . . . Outlet 2 File. . . . P:\_PROJECT FILES\CCCCPOND\PS POST.PPW RATING TABLE FOR ONE OUTLET TYPE Structure ID = CV (Culvert-Circular) -------------------------------------- Mannings open channel maximum capacity: .00 cfs UPstream ID's= IS, 01 DNstream ID = TW (Pond Outfall) Pond WS. Device (into) Converge Next DS HGL Q SUM DS Chan. TW Elev. Q HW HGL DS HGL DS HGL Error Error TW Error ft cfs ft ft ft +/-ft +/-cfs ft +/-ft -------- -------- ------- -------- ------- ------ ------ ------- ------- 38.50 .00 38.40 Free Free .000 .000 Free Outfall 38.75 .04 38.59 Free Free .000 .000 Free Outfall BACKWATER CONTROL. . Vh= .002ft hwDi= .183ft Lbw= 115.Oft 39.00 .06 30.62 Free Free .000 .000 Free Outfall BACKWATER CONTROL. . Vh= .003ft hwDi= .216ft Lbw= 115.Oft 39.25 .08 38.64 Free Free .000 .000 Flee Outfall BACKWATER CONTROL. . Vh= .004ft hwDi= .237ft Lbw= 115.Oft 39.50 2.23 39.50 Free Free .000 .000 Free Outfall BACKWATER CONTROL. . Vh= .066ft hwDi= 1.035ft Lbw= 115.Oft 39.75 3.05 39.75 Free Free .000 .000 Free Outfall FULL FLOW. . .Lfull=1.38ft Vh=.096ft HL=.100ft 40.00 3.67 40.00 Free Free .000 .000 Free Outfall FULL FLOW. . .Lfull=49.19ft Vh=.139ft HL=.351ft 40.25 4.22 40.25 Free Free .000 .000 Free Outfall FULL FLOW. . .Lfull=73.12ft Vh=.184ft HL=.600ft 40.50 4.73 40.50 Free Free .000 .000 Free Outfall FULL FLOW. . .Lfull=86.91ft Vh=.231ft HL=.850ft 40.75 5.19 40.75 Free Free .000 .000 FIee Outfall FULL FLOW. . .Lfu11=95.70ft Vh=.278ft HL=1.100ft 41.00 5.63 41.00 Free Free .000 .000 FIee Outfall FULL FLOW. . .Lfull=101.14ft Vh=.327ft HL=1.351ft SIN: 121E01CO709D Bartlett Engineering and Surveying, PC Y\JCiCU,1 Y ED Pond Pack Ver. 9.0041 Time: 11:07 AM Date: 1/10/2012 FEB © 2 2012 ) I Type. . . . Composite Rating Curve Page 7.08 Name. . . . Outlet 2 File. . . . P:\—PROJECT FILES\CCCCPOND\P5_POST.PPW ' '•... COMPOSITE OUTFLOW SUMMARY �••' WS Elev, Total Q Notes ________ Converge _________________________ Elev. Q TW Elev Error ft cfs it +/-ft Contributing Structures _______ ________ _____ __________________________ 38.50 .00 Free Outfall (no Q: WR,IB,01,CV) 38.75 .04 Free Outfall 01,CV (no Q: WR,IB) 39.00 .06 Free Outfall 01,CV (no Q: WR,IB) 39.25 .08 Free Outfall 01,Cv (no Q: WR,IB) 39.50 2.23 Free Outfall IB,CV (no Q: WR,01) 39.75 8.65 Free Outfall WR,IB,CV (no Q: 01) 40.00 19.51 Free Outfall WR,IB,Cv (no Q: 01) 40.25 33.32 Free Outfall WR,IB,CV (no Q: 01) 40.50 49.53 Pree Outfall WR,IB,CV (no Q: 01) 40.75 67.80 Free Outfall WR,IB,CV (no Q: 01) 41.00 87.93 Free Outfall WR,IB,CV (no 0: 01) ,A �e�L V 1�'Jlf SIN: 121E01C0709D Bartlett Engineering and Surveying, PC PondPack Ver. 9.0041 Time: 11:07 AM Date: 1/10/2012 FEB 0 2 2012 BY: Appendix A A_1 Index of Starting Page Numbers for ID Names JACKSONVILLE. . . 2.01 O ----- Outlet :2. . . 7.01, 7.04, 7.08 P ----- POND 10. . . 6.01 POST-DEV. . . 3.01, 4.01, 5.03 _____ N ----- Watershed. . . 1.01 SIN: 121E01CO709D Bartlett Engineering and Surveying, PC r •'!" Lj`w �' PondPack 'let. 9.0041 Time: 11:07 AM Date: 1/10/2012 FEB 0 2 .2012 ,:5Y: 20c( o� Fa DENR Use Reviewer: North Carolina Department of Environment and 2_ �I Natural Resources L ; of NCDENR Request for Express Permit Review [ -a � FILL-IN all the information below and CHECK the Permitis)you are requesting for express review. FAX or Email the completed form to Express Coordinator along with a completed DETAILED narraffve site plan(PDF rile)and vicinity map(same items expected in the application oackage of the project location.Please include this form in the application package. Asheville Region-Alison Davidson 828-2%4698;a11son.dav7dsonfdncmail.net Enter Relates a • Permhaof rogues • Fayetteville of Raleigh Region-David Lee 919-791d203;david.leeGdnomaiLnet • Mooresville&-Patrick Grogan 704-663.3772 or patrick.aropanAncmail.net SW 8920903 • Washington Region-Lyn Hardison 252-946.9215 or Ivn.hardison(ftcmall.net SW • Wilmington Region-Janet Russell910-350.2004 or lanet.russell(alncmaiLnet SW SW NOTE:Project application received slier 12 noon will be stamped in the following work day. Sw Project Name:COASTAL CAROLINA COMMUNITY COLLEGE-NEW MAINTENANCE BLDG County:ONSLOW Applicant:JON MEADE Company:BARTLETT ENGINEERING AND SURVEYING PC Address: 1906 NASH ST City:WILSON State:NC Zip:27693-_ Phone:252-399-0704 Fax:252-399- 804 Email:Lon @badlenera.mm Physical Location:JACKSONVILLE,NC Project Drains into UT TO SANDY RUNS BRANCH waters—Water dassificabon SC NSW(19-10-1 (for classification see- hao:lm2o enr state ric usibimslreoorls/reuortsWB htmn Project Located in WHITE OAK River Basin.Is project draining to class ORW waters?N,within%mile and draining to Cass SA waters N or within 1 mile and draining to class HOW waters?N Engineer/Consultant:JON MEADE Company:BARTLETT ENGINEERING AND SURVEYING PC RECEIVED Address: 1906NASHST City:WILSON State:NC Zip:27ss3-_ JAN 2 6 2012 Phone:222-39"704 Fax:252-399-OW Emailjon@b!gefl—w com SECTION ONE: REQUESTING A SCOPING MEETING ONLY ❑Scalping Meeting ONLY ❑DWO,❑DCM,❑DLR.❑OTHER: BY: SECTION TWO: CHECK ONLY THE PROGRAM(S).YOU ARE REQUESTING FOR EXPRESS PERMITTING. ❑401 Unit ❑Stream Origin Determination:_#of stream calls—Please attach TOPO map marking the areas in questions ❑Intermittent/Perennial Determination:_#of stream calls—Please attach TOPO map marking the areas in questions ❑401 Water Quality Certification ❑Isolated Welland(_linear It or_acres) ❑Riparian Buffer Authorization ❑Minor Variance ❑Major General Variance ®State Stormwater ®General ❑SFR, ❑SFR<1 ac. ❑Bkhd&Bt Rmp, ❑ Clear&Grub, ❑Utility ❑Other ❑Low Density ❑Low Density-Curb&Gutter _#Curb Outlet Swales ❑Off-site[SW_ (Provide permit#)J ®High Density-Detention Pond 1#Treatment Systems, ❑High Density-Infiltration _#Treatment Systems ❑High Density-Bio-Retenfion _#Treatment Systems ElHigh Density—SW Wetlands 1#Treatment Systems ❑High Density-Other _#Treatment Systems /®MOD:®Major❑Minor❑Plan_Revision❑Redev.Exclusion SW s920963(Provide perms 0) ❑Coastal Management ❑Excavation&Fill ❑Bridges&Culverts ❑Structures Information ❑Upland Development ❑Manna Development ❑Urban Waterfront ®Land Quality ®Erosion and Sedimentation Control Plan with 9_0 acres to be disturbed.(CK# (for DENR use)) SECTION THREE—PLEASE CHECK ALL THAT IS APPLICABLE TO YOUR PROJECT'(for'both oino'sco and express meetihn reouestl Wetlands on Site❑Yes®No Buffer Impacts:®No❑YES: _acre(s) Wetlands Delineation has been completed:❑Yes®No Isolated wetland on Property❑Yes®No US ACOE Approval of Delineation completed:❑Yes❑No 404 Application in Process w/US ACOE: ❑Yes ® No Permit Received from US ACOE❑Yes❑No •...........i....i.........u..!♦....i!!*Mti}ayYMRiq*FOL DENR use only*!*.�**.*...♦a!!luia*..u*asu*<psss�s!*.s�la!!s!<u giro Fee Splitfor multlPle units: Cheek# 1 Tota/FseAmount $ SUBMITTAL DATES Fee suB69TrAL 5ATE I Fee LAMA S Variance( Met 0 Min) s SW( HD, LD, Gen) S 401: g Los S Stream Dater,_ S NCDENR EXPRESS March 2009 January 26,2012 BAWLETT B�GMMG&OR-MG,K Wilmington Regional Office Department of Environment 1906 Nash Strew North Wilson,NC 27893.1726 and Natural Resources Phone:(252)399-0704 Fax:(252)399-0804 Attn:Stormwater 127 Cardinal Drive Wilmington,NC 28405 REFERENCE: SITE NARRATIVE-COASTAL CAROLINA COMMUNITY COLLEGE- NEW MAINTENANCE BUILDING JACKSONVILLE,NC To Whom It May Concern: STORMWATER: We are seeking a permit modification for the Coastal Carolina Community College stormwater permit# S\V8920903. The current permit consists of a parking lot (Parking Lot#4) that utilizes a detention pond to treat runoff. Proposed modifications consist of addition of a new maintenance building and associated drive and parking that will utilize the existing detention pond with modifications as the BMp.. The stormw^ater detention pond is designed to capture runoff from all currently permitted and proposed impervious surfaces (including future parking lot) generated by 1.5 inches of rainfall (drainage area is approximately 340,640 SF). Stormwater will be conveyed by sheet Flow and piping to the modified stormwater detention pond before discharging EROSION CONTROL The erosion control plan consists of modifying an entrance drive to the site, associated utility installation,new maintenance building and associated drives,parking,and modification to the existing detention pond (currently permitted through NCDENR). In addition, a new parking lot is planned with modifications to an existing storm"ter detention pond (stormwater permitted through the City of Jacksonville) for a total disturbed acreage of 9.03 acres. If you have any questions or need additional information,please contact our office. Thank you. Sincerely, RECEIVED JAN 2 6 2a12 jofiathan L.Meade t � Environmental Specialist BY: 1 3 8 4 5 8 ) 8 — -•—�'—^��' A A ,mom AT � S9yp yy ow�_ Iwwra � R n .r r -aa" k� B q NEW MT RE 1.W AG vA•\ - Y _ NUUNTENANCE IMPERMMS AREA A m BUILDING D / (*1 REWIRE A SEPMAIE EGS PUN�� ,w'� •.Imsu nm..lna ep. �_ r Qy s� 3• 1 NOT FOR :� "m'_ r" ,*ys"• �° , \ a ti . �; _ ' CONSTRUCTION ZT e r ..n.nia....wr.m.ur...wv ..n.w, — _ _ C • ,� 1.. !`\.\�1\t \\ .w SILT PENLE cnicuiwriorvs cRAPM scut olssle.ron PnolamEr enorcnwscr�EouE MNN SLIEOLLE(10.'EM 81piM—)—+ •� of lwS E%ISTNGPIPEOVREiS-0ISSIPATOR PPD.VVILET PROTELPOHSCMEOIILE y ? T i r 'ram ® ®"TM•'D SKINAER SEOIMN sashouE EROSION ®a ANDSEDIMENT f HIM. .. . r .. . ... , F •^ Lr�. �_ ,_ S �'_.'•'r�� C"' CONTROL — — •• •• ••..m F PLAN 1 --r rEwoRMvolveasmn cucuAno s BARTLETT EROSION AND SEDIAAIENT CONTROL PLAN PHASE 1 TTn co oz.osez C307 1 2 3 5 S ] S i �- I �..rYL ".4x'T NEW '� .4• ``-`\\, \/ k \\ il'- c•.. '.� \ , ?; -''>`�' MAINTENANCE \ \'- \ ',\�\F"\\;J. ? , -I\I\'. J BUILDING "-! a •� !_ `' i� � •, r, �i em..rmam. .w..nn NOT FOR CONSTRUCTION \ I %tkt= 'IiT fv�3' .s E ........... °�_ GW. scud MSnNG ,.. _ 'o �•m l Ili \ - .f. CONDRIONS PLAN F ..,. r awn. ma'mn'm,.rms.m ' .'^"' BARTu r F L E 1111 CD Pddw - vm c.vwr. mo rl t 2 3 < 5 S 7 S 0203.12 Clol • \\ \ //\` .INV:39.32 TOTAL LOT AREA: A/ „% TOTAL DISTURBED AREA: \ \ r /& F39.17 \ Ae �� \ rf o' \jr INV. C" 39.04/�� a IX 2' TRENCH \ 9RNN All I AOO \\\ a SILT \ yY \ JI FENCE CHECK DAM < F �11 1DEWATE ° 0� ,1 1 10 AiION` \ A, V ATTACH i J SKIMMER TO \ �i I I tq OUTLET f^ STRUCTURE 1 I I / III I ��% /.; ::::'•�::,�:;:;':�:;•::�:: i>:;�>:�:: I I I I T I I I I I I I I Ill i� F'.• . . : . :. "•.••:•>•::•.' : .::�:%:; :;::;:%'•.:: �::•':�:�.�%' .:.��:.��::�:�::'•�: � III I I tr • ::. .. �a. , I��` ii;�GW �.:">: : 9P1{ .: .: ::::....::: ••:•>�>:• :•: •� I III �'� I \\! o- I 1 't'+�RB �`:� ?f::� :�i:� :��''`'.';'�':"::�t:::':;%:•�'.�:.;.'� :��: II I� CONSTRUCTIONII III ' I I i iI�'>::?:.'; :}y :'j(•: ;: ii. ENTRANCE .: :::l:;. .� :�:.;�t :..:::: . •:. F; ::;•. � :>;;:�;':> �. •>: I�� j'� is•`;•:;;».. •�, •;:• �� III f I I ':' `. i::•':`i:>i-,�z�•: • III 1 :,� ::.; : ::. . :::•>:•:::•>:.;•: I FES �• --a.'� 4:�?>i�1;y[• ;�K� ::.f7�_<;.<;;:�•;: :} f: [ :>::<:::;f IIII IIII w�Y��'��^V��+�i3��� ,� :.''� ../ '•.'.a(j[:;:; ::!•:•:•:••f��.::•:4f•:^.:i: O>':;`•'i:•'?�'i: I IIIII �� 1 :;•'' .,'>:::>�:;;.::;:•:;: IIII II /i ZmTan S-amx y k i.` :..; i:' FI IIIII I � :. :*•• ..��::'.• IIII II �/ MA IAL II ITEMPORARY \-- MA AND PROVIDE SILT Nv. IIIII rl SQ STOCKPILE/ STAGING FENCE OUTLET AT 40.58 lI II WASTE AREA AREA LOWEST POINT li I I j j I II IIII II I JR CONSTRUCTION SEQUENCE: a�21 c;,cA ForDENRUseONLY Reviewer. 1 L it CIA'�� North Carolina Department of Environment and Submit I—7 l.of,s Natural Resources NCDENR Request for Express Permit Review Time: I C) o% Confirm: to-zce FILL-IN all the information below and CHECK the Permits)you are requesting for express review. FAX or Email the completed form to Express Coordinator along with a completed DETAILED narrative site plan(PDF file)and vicinity map(same items expected in the application packaoe of the project location.Please include this form in the application package. Enter Related SW a(a• 1 ,2(q • Asheville Region-.Alison Davidson 828.296-4698;alison.davidsonCaDncmail.net permits of request • Fayetteville or Raleigh Region-David Lee 919-7914203;david.180oncmail.net • Mooresville&-Patrick Grogan 704-663.3772 or Datrick.arogan(Mncmail.net SW 8920903 Ab • Washington Region-Lyn Hardison 252-946.9215 or Ivn.hardisonfrDncmait net SW • Wilmington Region-Janet Russell 910-350-2004 or ianetrussellfpincmail.net SW NOTE:Project application received after 12 noon will be stamped in the following work day. Sw Project Name:COASTAL CAROLINA COMMUNITY COLLEGE-DRIVE ADDITION County:ONSLOW Vt 3 Applicant:JON MEADE Company: BARTLETT ENGINEERING AND SURVEYING PC Address: 1906 NASH ST City:WILSON, State:NC Zip:27893-_ Phone:252-399-0704, Fax:252-399-0804,Email:ion@badlettena.com Physical Location:JACKSONVILLE,NC Project Drains into UT TO SANDY RUNS BRANCH waters-Water classification SC NSW(19-10-1 (for classification see- htto://h2o.enr.state,nC,Lls/bims/reports/reportsWB.htmi Project Located in WHITE OAK River Basin. Is project draining to class ORW waters?N,within''/I mile and draining to class SA waters N.or within 1 mile and draining to class HOW waters?N Engineer/Consultant:JON MEADE Company:BARTLETT ENGINEERING AND SURVEYING PC Address: 1906 NASH ST City:WILSON,State: NC Zip:27893-_ RECEIVED Phone:252-399-0704,Fax:252-399-0804,Email:jon@bartlettenD.com SECTION ONE: REQUESTING A SCOPING MEETING ONLY OCT 2 1 2011 ®Scoping Meeting ONLY ®DWQ, ❑OCM, ❑ DLR, ® OTHER:_ BY. SECTION TWO: CHECK ONLY THE PROGRAM (S)YOU ARE REQUESTING FOR EXPRESS PERIfifi �— ❑401 Unit ❑Stream Origin Determination:_#of stream calls-Please attach TOPO map marking the areas in questions ❑ Intermittent/Perennial Determination:_#of stream calls-Please attach TOPO map marking the areas in questions ❑401 Water Quality Certification ❑ Isolated Wetland(_linear ft or_acres) ❑ Riparian Buffer Authorizafion ❑ Minor Variance ❑ Major General Variance ®State Stormwater ® General ❑SFR, ❑SFR< 1 ac. ❑Bkhd&Bt Rni ❑ Clear&Grub, ❑ Utility ❑Other ❑Low Density ❑Low Density-Curb&Gutter _#Curb Outlet Swales ❑Off-site[SW_ (Provide permit#)] ®High Density-Detention Pond 1#Treatment Systems ❑High Density-Infiltration _#Treatment Systems ❑High Density-Bio-Retention _#Treatment Systems ❑High Density-SW Wetlands 1#Treatment Systems ❑High Density-Other _#Treatment Systems /® MOD:®Major❑ Minor❑ Plan Revision❑ Redev. Exclusion SW 8920903(Provide permit#) ❑Coastal Management ❑Excavation&Fill ❑ Bridges&Culverts ❑ Structures Information ❑Upland Development ❑ Marina Development ❑ Urban Waterfront ®Land Quality ®Erosion and Sedimentation Control Plan with 3_0 acres to be disturbed.(CK# (for DENR use)) SECTION THREE- PLEASE CHECK ALL THAT IS APPLICABLE TO YOUR PROJECT(for both scoping and express meeting request) Wetlands on Site❑Yes®No Buffer Impacts: ® No❑YES: _acre(s) Wetlands Delineation has been completed: ❑Yes❑ No Isolated wetland on Property El Yes®No US ACOE Approval of Delineation completed: ❑Yes❑ No 404 Application in Process w/US ACOE: ❑Yes ❑ No Permit Received from US ALOE❑Yes❑No +as++s++++r+rsrrssrsssasssasessss++++r+++rrrrrsssrssrsssFOr DENR use Only+++•sssssasassss+++++r+s♦rarsassas+sss++rss+++++rrrr+rssssrs Fees lit for multiplepermits: Check# Total Fee Amount $ SUBMITTAL DATES Fee SUBMITTAL DATES Fee CAM A $ Variance(❑Ma);❑Min) $ SW(❑HD,❑LD,❑Gen) $ 401: $ LOS $ Stream Deter,_ $ NCDENR EXPRESS;March 2009 2 J 4 5 6 J 8 A 1 m tl A a- urd a c \ NOT FOR CONSTRUCTION \A �C FTVED OCT 2 1 2011 E F BARI ET OVERALL PLAN .�.... �. �, © Fri — 1 12 1 3 l 1 5 6 1 7~ 1 8 my 2 ] 4 5 6 ) 6 RE IVED 3 - OCT 2 1 2011 Mgt--..,g j I NOT FOR �1} a CONSTRUCTION s- I BAR1lETT ®'�:T-- 'e crtvwc xus © _— _ � ., _ oasrwncornrraNs � mW rye -- 1 2 S 4 5 6 )M 8 Far DENRUse ONLY Scope �� Reviewer: LL._. ,Y- North Carolina Department of Environment and sum` 3 el Natural Resources - NCDENR' Request for Express Permit Review Time: �(�: 3�. Confirm: WIN all all the informal l on be wand CHECK the Permit(s)you are requesting for express review. FAX or Email the completed form to Express Coordinator along with' co leted DETAILED narrative site plan PDF file and vicinity ma same items expected in the application package of the project location. teas include this form in the application package. - --e.r..va sw • Asheville Region-Alison Davidson 828-296-4698;alison.davidson(o).ncmaiLnet • Fayetteville or Raleigh Region-David Lee 919-791-4203;david.lee(a)ncmail.net � oA • Mooresville&-Patrick Grogan 704-663-3772 or patrick.arocan(ftcmail.net 0 C�t1 v� • Washington Region-Lyn Hardison 252-946-9215 or Ivn.hardison(�ncmail.net 1 • Wilmington Region-Janet Russell 910-350.2004 or ianet.russell(aD-ncmail.net � v NOTE:Project application received after 12 noon will be stamped in the following wor. Project Name:COASTAL CAROLINA COMMUNITY COLLEGE-DRIVE ADDITION County:ONSI 3 Applicant:JON MEADE Company: BARTLETT ENGINEERING AND SURVEYING.PC Address: 1906 NASH ST City:WILSON, State: NC Zip:27893-_ Phone:252-399-0704,Fax:252-399-0804, Email:jon@badleftene.com Physical Location:JACKSONVILLE,NC Project Drains into UT TO SANDY RUNS BRANCH waters-Water classification SC NSW(19-10-1 (for classification see- hftp://h2o.enr.state.nc.us/bims/reports/reportsWB.htmi) Project Located in WHITE OAK River Basin. Is project draining to class ORW waters?N,within V2 mile and draining to class SA waters N or within 1 mile and draining to class HOW waters?N . .- - Engineer/Consultant:JON MEADE Company: BARTLETT ENGINEERING AND SURVEYING,PC Address: 1906 NASH ST City:WILSON, State: NC Zip:27893-_ Phone:252-399-0704, Fax:252-399-0804, Email:L@bartletteng.com i ECTION ONE: REQUESTING A SCOPING MEETING ONLY q feG•. Scoping Meeting QNLY ® DWQ, ❑DCM, ❑DLR, ®OTHER:_ - -- SECTION TWO: CHECK ONLY THE PROGRAM (S)YOU ARE REQUESTING FOR EXPRESS PERMITTING ❑401 Unit ❑Stream Origin Determination:_#of stream calls-Please attach TOPO map marking the areas in questions ❑ Intermittent/Perennial Determination:_#of stream calls-Please attach TOPO map marking the areas in questions ❑401 Water Quality Certification ❑ Isolated Wetland(_linear ft or_acres) ❑Riparian Buffer Authorization ❑Minor Variance ❑ Major General Variance ® State Stormwater ® General ❑ SFR, ❑SFR< 1 ac. ❑Bkhd&Bt Rmp, ❑ Clear&Grub, ❑Utility ❑Other ❑Low Density ❑Low Density-Curb&Gutter _#Curb Outlet Swales ❑ Off-site[SW (Provide permit#)] ®High Density-Detention Pond 1#Treatment Systems ❑High Density-Infiltration _#Treatment Systems ❑High Density-Bio-Retention _#Treatment Systems ❑High Density-SW Wetlands 1#Treatment Systems ❑High Density-Other _#Treatment Systems /®MOD:® Major❑Minor❑Plan Revision ❑Redev. Exclusion SW 8920903(Provide permit#) ❑Coastal Management ❑ Excavation&Fill ❑Bridges&Culverts ❑ Structures Information ❑ Upland Development . ❑ Marina Development ❑ Urban Waterfront ®Land Quality ®Erosion and Sedimentation Control Plan with?acres to be disturbed.(CK# (for DENR use)) SECTION THREE-PLEASE CHECK ALL THAT IS APPLICABLE TO YOUR PROJECT(for both scoping and express meeting request) Wetlands on Site❑Yes® No Buffer Impacts: ®No❑YES: _acre(s) Wetlands Delineation has been completed: El Yes[I No Isolated we0and on Property El Yes® No US ACOE Approval of Delineation completed: ❑Yes❑ No 404 Application in Process w/US ACOE: ❑Yes ❑ No Permit Received from US ACOE ❑Yes❑ No *For DENR use only*.**.....rrrrar.s+r**r*rr+r*.***..rrrrr***.rrrr**r.*r.*r*.*• S lit for multiplepermits: Check# Total Fee Amount $ SUBMITTAL DATES 1 Fee I I SUBMITTAL DATES Fee CAMA $ 1 Variance(❑Maj;❑Min) $ SW(❑HD,❑LD,❑Gen) $ 401: $ LOS $ Stream Deter— $ NCDENR EXPRESS March 2009 GC- � � � l� T 4 `� 20c-�03 �� sk-r�- � LPL � ccesS � 0dC�on Cow Cd � L408 � � ao CD • Instrument Prepared By: City of Jacksonville Attorney's Office Brief Description for Index: Parcel Identifier: Mail After Recording To: City Attorney's Office PO Box 128 Jacksonville,NC 28541 STATE OF NORTH CAROLINA COUNTY OF ONSLOW CITY OF JACKSONVILLE'S STORMWATER OPERATION, MAINTENANCE, EASEMENT AND ACCESS AGREEMENT FOR STRUCTURAL STORMWATER MANAGEMENT OF BMPS THE CITY OF JACKSONVILLE'S STORMWATER OPERATION, MAINTENANCE, EASEMENT AND ACCESS AGREEMENT FOR STRUCTURAL STORMWATER MANAGEMENT OF BMPS (the"Agreement") made this 8th day of April 12009 by and between Coastal Carolina Community College whose address and telephone number are 444 Western Blvd. (910) 455-1221 (hereinafter referred to as "Developer") with, to and for the benefit of the CITY OF JACKSONVILLE, a municipal corporation of the State of North Carolina, whose address is PO Box 128, Jacksonville, North Carolina 28541 (hereinafter referred to as the "City"). Developer, or any subsequent successors and assigns are herein referred to collectively as the "Owners" and individually as "Owner". Operation and Maintenance Agreement—Non-Association Page 10 of 49 March 1,2:009 WITNESSETH WHEREAS, the City, under various state and federal laws, is required to regulate the maintenance of Structural BMPs (as defined herein) constructed to serve new or re-development within the City's planning jurisdiction to ensure that, following initial construction, the Structural BMPs are operated, maintained, and to the extent necessary, repaired in accordance with applicable state and federal laws; and WHEREAS, the City may be subject to substantial regulatory and financial penalties from the State of North Carolina and the federal government if the above-referenced rules and regulations are not applied to new or re-developments occurring within the planning jurisdiction of the City; and WHEREAS, the City Council of the City of Jacksonville has determined that, to maintain the City of Jacksonville's compliance under applicable state and federal regulations, certain obligations are to be met by Developers and subsequent owners of Structural BMPs; and WHEREAS, Developer is the owner in fee simple of that certain "Property" situated in Onslow County, North Carolina and more particularly described on Exhibit A; and WHEREAS, the Property is located within the planning jurisdiction of the City and subject to certain stormwater standards set forth in Jacksonville City Ordinance 2009-07 (the "Ordinance"), as may be amended from time to time; and WHEREAS, the Developer has submitted construction drawings depicting the Stormwater Area and Structural BMPs (both herein defined), for the purpose of establishing a stormwater management system for the Property, and WHEREAS, these Structural BMPs are required to comply with the Ordinance and that failure to maintain the Structural BMPs is a violation of the Ordinance potentially subjecting each lot owner of the Property to significant daily civil penalties and other enforcement actions; and WHEREAS, the City also requires that the Developer grant or dedicate to the City an access and maintenance easement over and across the Property and Stormwater Areas for the purpose of inspecting, maintaining, repairing, reconstructing and replacing the Structural BMPs set forth in the Ordinance and this Agreement; and WHEREAS, this Agreement has been procured in accordance with the requirements of N.C. General Statutes Chapter 143, Article 21, Part 1 and Jacksonville City Ordinance 2009-07. NOW, THEREFORE, for a valuable consideration, including benefits Developer may derive there from,the receipt of which is hereby acknowledged, the Owner and City hereby agree as follows: I. RECITALS. The foregoing recitals shall constitute an integral part of this Agreement, and this Agreement shall be incorporated herein and made a part thereof. 2. PROPERTY. As required by the City in connection with the development of this Property, the Developer shall install engineered stormwater control structures and other stormwater Operation and Maintenance Agreement—Non-Association page 11 of 49 March 1,2009 structural Best Management Practices (BMPs) and associated appurtenances and vegetation (collectively, the "Structural BMPs") as shown on the construction drawings prepared by Parker & Associates, Inc. entitled C.C-C.C. addrg Lot H5 Fqm� and dated 04 06 09 —on portion of Property as described in Exhibit B (the"Stormwater Areas"), for purposed of establishing a stormwater management system for the Property, and that Developer assumes specific maintenance, replacement, reconstruction and repair, responsibilities set forth in the Ordinance and with respect to the Structural BMPs; and 3. GRANT OF EASEMENT. Developer hereby dedicate, bargain, sell, grant, and convey unto the City, its successors and assigns, a perpetual, non-exclusive and irrevocable right and easement over, under, through, and across the Stormwater Areas and access through the Property to and from the Stormwater Areas for the purpose of permitting City inspection and, if deemed necessary, as determined by the City; maintenance, replacement, reconstruction, and repair of the Structural BMPs, as more fully set forth herein and in the Ordinance (the "Protection Easement"). Said easement shall be clearly identified and labeled on the approved final plat for Property. Said easements shall be permanent and shall run with the land. 4. CONSTRUCTION AND MAINTENANCE STORMWATER MANAGEMENT FACILITIES. The Developer shall be responsible for the construction of the Stormwater BMPs; and prior to conveying control of the Stormwater Area, their appurtenances and vegetation to another Owner by deed or easement, the Developer will be responsible for maintenance, repair, reconstruction, and replacement thereof in the manner specified herein and in strict compliance with the Stormwater Ordinance 2009-07 which is incorporated herein by reference and made a part thereof (the "Ordinance"). At all times, the Stormwater BMPs shall perform as designed and shall at all times comply with all applicable laws, ordinances, regulations, rules and directives of governmental authorities. 5. OWNERSHIP AND/OR TRANSFER OF PROPERTY AND STORMWATER AREAS. Developer agrees that it shall not transfer ownership and/or control of the Structural BMPs until construction has been completed in accordance with the Stormwater Permit, as defined in the Ordinance, approved Stormwater Areas and Structural BMPs plans, and the City has inspected and approved the same. In addition, the Developer and any new Owner must request that the Permit for the Structural BMPs be reissued to any subsequent Owner. The Developer agrees that it shall not transfer, convey, assign or otherwise relinquish or release its responsibility for the operation and maintenance of its Structural BMPs until a Permit has been issued to Developer's successor, or new owner at which time Developer shall be released from any obligations hereunder arising from events or circumstances occurring after the date the Structural BMPs is transfen-ed and the Permit is reissued to the new Owner of the Property; and 15. INSPECTION. The Developer, its successors and assigns, shall ensure that the Structural BMPs are inspected by one of the following professional services: Qualified Registered North Carolina Professional engineer, surveyor, landscape architect, soil scientist, aquatic biologist, or person certified by the North Carolina Cooperative Extension Service for Stormwater treatment practice inspection and maintenance (the "Professional"). The Professional shall submit an annual inspection report, a copy attached hereto as Exhibit C, which may be amended from time to time, to the City. The inspection report shall be due annually 30 days from the date of the final structural stormwater BMP construction Operation and Maintenance Agreement—Non-Association Page 12 of 49 March 1,2009 inspection approval by the City. The inspection shall cover the entire Stormwater Area as well as any Structural BMPs. 7. USE OF PROTECTION EASEMENT. The City, its officers, employees, contractors and agents may access the Property and enter the Stormwater Areas for purposes of exercising City's rights hereunder. This Agreement shall in no way obligate the City to maintain, replace, reconstruct and repair the Structural BMPs, and the City shall not be liable to any person, firm, partnership, company, corporation, governmental agency, or entity for the condition or operation of the Structural BMPs. Further, this Agreement shall in no way diminish, limit, or restrict the right of the City to enforce any of its ordinances as permitted by law. 8. DEFAULT. If the Developer, or subsequent Owners shall fail to comply with the foregoing requirements or any other obligations imposed herein, in the Ordinance as the same may be amended from time to time, the City, in its sole discretion, may perform such work and recover the costs thereof from the person who is then responsible for the performance of such requirements and obligations provided, however, that, except in cases of emergencies, the City will give the Owner written notification of deadline for correcting the violation and an opportunity to cure the Owner's default hereunder. If the City exercises its right hereunder and maintains, repairs, reconstructs or replaces all or a portion of the Structural BMPs, then following acceptance and payment of the work, the City shall deliver to the Owner written notice of the costs of such work, and the Owner shall pay all such costs within forty-five (45) days after receipt of such notice. Any costs not paid by the Owner to the City within the forty-five (45) day period shall be delinquent, and the Owner shall be considered in default of this Agreement. In the event of such default, the City may either bring an action at law against the Owner for the cost of the work, plus interest at the rate of eight percent (8%) per annum, collection costs, and reasonable attorney fees, or foreclose a lien against the Property, or both. Any payment required by this Agreement which is not paid to the City within thirty (30) days after its due date shall be delinquent. In the event of such default, the City may bring an action against the Owner for nonpayment plus interest at a rate of eight percent (8%) per year, collection costs, a late payment charge of three hundred dollars ($300) during the first forty five (45) days of default and five hundred dollars ($500) thereafter and reasonable attorneys' fees. The remedies set forth herein are cumulative; the City may, for example, bring an action for collection and foreclose its lien claim. 9. RESERVATION BY RECORD OWNER. The Developer and its successors and assigns shall in all other respects remain the owner of the Property, subject to the Protection Easement, and may make al I lawful uses of the Property not inconsistent therewith. 10. NO WAIVER OF RIGHT. The City does not waive or forfeit the right to take action to ensure compliance with the terms, conditions and purposes of this Agreement by a prior failure to act. 11. NOTICE. Written notice as required hereunder shall be provided to the City Manager of the City of Jacksonville at PO Box 128, Jacksonville, NC 28541, and to the Owner at Coastal Carolina Cortunur ty Collecte at 444 Western Blvd. , Jacksonville NC 28546 Written notice shall be deemed received four (4) days following its deposit, first class mail, with the United States postal system. In the event notice to the Owner is returned, the City may notify the Owner at the mailing address provided by the Onslow County Tax Assessor. Operation and Maintenance Agreement—Non-Association Page 13 of 49 March 1,2009 12. SUCCESSORS AND ASSIGNS. The designation of Developer and Owner shall include the heirs, assigns, and successors to the Developer and Owner. The designation of City shall include the assigns and successors to the City. 13. TERM. This Agreement shall continue as a servitude running in perpetuity with the Property. 14. CONTROLLING LAW. This Agreement is to be governed by the laws of the State of North Carolina. Any and all applicable laws, rules, and regulations, ordinances, codes, and orders of any and all governmental bodies, agencies, authorities, and courts will be construed pursuant to the laws of the State of North Carolina. All claims and disputes arising from any contract shall be construed pursuant to the laws of the State of North Carolina. The State of North Carolina is the proper jurisdiction for all claims and disputes arising under any contract and the proper venue is the Onslow County Superior Court. 15. INDEMNIFICATION. Developer and successors and assigns agree to protect, defend, indemnify and hold the City, its officers, employees and agents free and harmless from and against any losses, penalties, damages, settlements, costs, charges, professional fees or other expenses or liabilities in connection with or arising out of this Agreement and/or the performance hereof that are due to the negligent:acts of the Developer, its officers, employees, or agents. TO HAVE AND TO HOLD the aforesaid rights, privileges and easements herein to the City, its successors and assigns forever, and Developer does covenant that Developer are seized of said premises in fee or by easement and have the right to convey the same, the Developer will warrant and defend such title to the same against claims of all persons whosoever. IN WITNESS WHEREOF, the Developer and City have executed this Agreement and under seal as of the day and year first above written. P.EVEWPER- By: Coastal Carolina Ommxity (SE L) Name: David Heatherly Its: Executive Vice President (Title) Operation and Maintenance Agreement—Non-Association Page 14 of 49 March 1,2009 STATE OF NORTH CAROLINA DEVELOPER COUNTY OF ACKNOWLEDGEMENT I, the undersigned Notary Public, certify aV t 1Aecc� er�V personally came before me this day and acknowledged he/she is the (title) F><2Lu k 1 V� c�P0- - of Ccxxs5}--A Cvr-c+trr.' C-Uru-,.u� -y C�1\WCAJ2- (name of entity) a (circle one) corporation, limited liability company, general partnership and the he/she as such officer being authorized to do so executed the foregoing instrument on behalf of said entity. WITNESS my hand and official stamp seal this the � h day of f t 20 09 y �Cowr rSE � otary Pu 'c My Commission Expires: r Operation and Maintenance Agreement—Non-Association Page 15 of 49 March 1,2009 CITY OF JACKSONVILLE: By: (SEAL) Name: Kristoff T. Bauer Its: City Manager (Title) ATTEST: City Clerk STATE OF NORTH CAROLINA CITY MANAGER COUNTY OF ONSLOW ACKNOWLEDGEMENT This is to certify that on the day of 20 before me personally came , with whom I am personally acquainted, who, being by me duly sworn, says that she is the City Clerk and Kristoff T. Bauer is the City Manager of the City of Jacksonville, the municipal corporation described in and which executed the foregoing; that she knows the corporate seal of said municipal corporation; that the seal affixed to the foregoing instrument is said corporate seal, and the name of the municipal corporation was subscribed thereto by the said City Clerk and that the said corporate seal was affixed, all by order of the governing body of said municipal corporation, and that the said instrument is the act and deed of said municipal corporation. WITNESS my hand and official stamp seal this the day of 20 (SEAL) Notary Public My Commission Expires: APPROVED AS TO FORM: City Attorney Date Operation and Maintenance Agreement—Non-Association Page 16 of 49 March 1,2009 f- PG�c30NVILLEAVC FOR OFFICE USE ONLY V Date Received: n Q 1 Review Fee:5 � `o- 'r4p 0' Permit No: te',It•ONE�ippCX4. City of Jacksonville Date Issued: Application for Stormwater Permit Proiect Information Project Name: C.C.C.C. Parking Lot #5 Expansion Project Location: Highway/Street: Off Western Blvd. on Coastal Carolina Road Latitude:_34 .7733 Longitude:_7 7 • 381 5 Property Owner: David Heatherly, Executive virp President- Property Owner Address: 444 Western Blvd. Property Owner Telephone: ( 91 0 ) 4 5 5-1 2 21 _ Deed Boolc 390 Page No. 627 _ PINS 438711 5611 71 Lot Acreage 70. 56 _ Purpose of Development: ResideE)l Comocial Xpther Existing Impervious Coverage(acres) N/A Proposed Impervious Coverage(acres) 0 . 60 © High Density ❑ Low Density Applicant Information(OwnerlDeveloper) BusinessName(s): Coastal Carolina Community Colleges___ ApplicantName(s): David Heatherly, Executive Vice President Address: 444 Western Blvd. Jacksonville, NC 7jp 28540 Telephone: ( 91 0 ) 455-1 221 Fax: 91 0 937-01 22 Email Address: heatherd@coastal.cc.nc.us Designer lnformadon(Person to contact regarding questions or revisions to the plan) Company: Parker & Associates, Inc. Cordacthlame: Jason A. Houston, PE Address: 306 New Bridge Street Jacksonville, NC Zip 28540 Telephone: (91 0 ) 455-241 4 Fax: ( 91 0 ) 455-3441 Email Address: jhouston@bizec.rr.COmton@bizec,rr.com ATTACH PERMIT TO THIS APPLICATION Stormwater Application Page 30 of 49 March 1,2009 1� _ v DESIGNER'S CERTIFICATION "I hereby certify that, to the best of my ability,this plan has been prepared in accordance with the latest City of Jacksonville Manual of ecification and a rd Details and City Code." CARI��i�� Signature: yy9 i 4 SEAL r Printed Name/ndTitle: Jason A. Houston, PE = 34978 Date: 04/08/09 Registration Number: PE34978 0kgiiHW��\\`\ OWNER'S/DEVELOPER'S CERTIFICATION "I/We hereby certify that all site construction, drainage and grading will be done pursuant to this plan and that the applicable Stormwater Management conditions and requirements of the City of Jacksonville, the State of North Carolina and the Federal Government and its agencies are hereby made part of this plan." Signature:Printed Name: David L. Heatherly Title: Executive VP Date: o4/o8/09 DESIGNER'S CERTIFICATION "I hereby certify that,to the best of my ability, this plan has be n prepared in accordance with the latest City of Jacksonville Manua Specifications- d andard Details and rr C1(1Qdd@jj� ZH CARA�/i�� Signature: 11 4x SEAL 9r; Printed Na yr = 34978 Date: ` 18109 Registration Number: PE 3`!978 � S '• . t � g N,A 11110 HO\)S ssss OWNER'S/DEVELOPER'S CERTIFICATION "I/We hereby certify that all site construction, drainage and grading will be done pursuant to this plan and that the applicable Stormwater Management conditions and requirements of the City of Jacksonville, the State of North Carolina and the Federal Government and its agencies are hereby made part of this plan." Signature: Printed Name: Jti"� ,c� Title: V—�Pe,,c7 je__ �� Date:` 0 `1 r r. Submittal Worksheet for Dry Detention, Wet Retention, Extended Detention Wetland Basins, and other BMP Facilities: The City of Jacksonville will follow the City Code and the North Carolina Department of Environment and Natural Resources, Division of Water Quality Stormwater Site Planning Guidance Manual and the Stormwater Best management Practices Handbook with regard to Dry Detention, Wet Retention Basin, Extended Detention Wetland Basins and other BMP's within the City's jurisdiction. Please provide complete documentation and details where applicable. A complete stormwater management plan submittal includes a worksheet for each basin, design calculations, plan and specifications showing all basin and outlet structure details, and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for additional information and will substantially delay final review and approval of the project. Indicate "Not Applicable" where appropriate if design is a dry detention basin. I. Project Information (please complete the following information): Project Name:_ C.C.c.c. Parking Lot N5 Expansion For projects with multiple basins, specify which basin this worksheet applies to: Basin Bottom Elevation ft. (average elevation of the floor of the 32.5 basin) Permanent Pool Elevation 39.5 ft. (elevation of the orifice invert out) Temporary Pool Elevation 40.0 ft. (elevation of the outlet structure invert in) Permanent Pool Surface (water surface area at permanent pool Area 6,075 sq. ft. elevation) Drainage Area 1 .03 ac. (on-site and off-site drainage to the basin) Impervious Area 0.61 ac. (on-site and off-site drainage to the basin) Permanent Pool Volume cu. ft. (combined volume of main basin and 19,322 forebay) Temporary Pool Volume cu. ft. (volume oli me detained on top of the permanent 3,513 Forebay Volume cu. ft. (volume detained on top of the forebay a;R44 pool) SA/DA used 7_0% (surface area to drainage area ratio) Diameter of Orifice and 1 .o in./ (draw down orifice diameter and number Number of) Submittal W orksheel March 1,2009 Page 39 of 49 Applicant's WeOetention Ponds Initials . (items to be added to Dry Detention pond requirements:to yield a Wet SA/DA is based on minimum $9% TSS removal (based on Coastal Counties Tables). To% The temporary pool, located above the permanent pool, sized to detain the 41Xrunoff volume from the 15`4as1\of runoff ("first flush"). The 15t+nch draws down r in a minimum of 2 to 5 days. 1• " 1•5-° _ Minimum permanent water quality pool depth is 3 to 6 feet with minimum of 3 feet. The forebay volume is approximately equal to a minimum of 20% of the total basin volume Sediment storage is provided in the permanent pool The storage for flood control located above both the permanent and temporary (15t in� of runoff) water quality pools. A merged and vegetated 10' wide perimeter shelf provided (below the normal pool elevation) at a slope not exceeding 79:1. Inward from edge of shelf, basin side slopes are no steeper than 3:1. 1O An emergency basin drain with gate valve is provided to drain the basin sufficient to drain the pond in 24 hours for riser repairs and sediment removal. ,U/,4 A minimum 30-foot vegetated filter is provided at the outlet A specific sediment clean-out benchmark is listed (elevation or depth) in the O&M plan PARKER & ASSOCIATES INC. 9 5,aping Consulting Engineers - Land Surveyors - Land Planners S 306 New Bridge Street + P.O. Box 976 Jacksonville, NC 28541-0976 ..:':,:": >':;:'::,':<::'::: (910) 455-2414 . Fax: (910) 455-3441 COASTAL CAROLINA COMMUNITY COLLEGE PARKING LOT #5 EXPANSION JACKSONVILLE, NORTH CAROLINA 'A ICIAI/l��i STORMWATER WET DETENTION POND NESS/���y�'. G '7 ENGINEERING CALCULATIONS = :4� SEALr; 34078 APRIL 2009Cl 0�. 11 y/o8/oy 1. AREA Total Drainage Area 45,000 SF Impervious Area: Parking Lot 26,362 SF Percent Impervious = Impervious = 26,362 = 58.6 % Total 45,000 2. PERMANENT POND SURFACE AREA From Table 10-4 from NCDENR Stormwater BMP Manual for 60 % impervious, 3.0 average basin depth without Vegetative Filter (90% TSS Removal) Yields SA/DA = 7.00% 45,000 SF x 7.00 % = 3,150 SF surface area required Permanent pool elevation is 39.5 Area at 39.5 elevation = 6,075 SF provided OK EMAIL ADDRESS: TEXT MESSAGES TO: paite:tAbizee.rr.com MAPS AND PLANS TO: paid raft(a)bizec rr.com ♦ ENVIRONMENTAL ENGINEERING i STORMWATER,WATER AND WASTEWATER SYSTEMS 4 FEASIBILITY AND DEVELOPMENT CONSULTING ♦ GLOBAL POSITIONING SURVEYS ♦SUBDIVISION AND CONSTRUCTION PLANS ENG-2 3. REQUIRED TEMPORARY WATER QUALITY 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 (58.6) = 0.577 inch / inch Find Temporary Water Quality Volume V = (Design Rainfall) (RV) (Drainage Area) _ (1.5 inch) (0.577 inch / inch) (1 ft.) (45,000 SF) (12 in.) = 3,246 CF Required 4. DESIGN TEMPORARY WATER QUALITY STORAGE VOLUME Use 0.5 Ft. Temporary Pool Depth Area at 39.5 elevation (permanent pond) = 6,075 SF Area at 40.0 elevation (vegetated shelf) = 7,975 SF Average Area = 7,025 SF Storage Vol.= 7,025 SF x 0.5 Height = 3,513 CF provided 3,513 CF provided > 3,246 CF required OK ENG-3 5. RELIEVE TEMPORARY WATER QUALITY VOLUME IN 2 TO 5 DAYS Q = Cd A 2gh (orifice equation) Q = 3,246 CF - 2 days = 0.0188 CFS Q = 3,246 CF _ 5 days = 0.0075 US Cd = 0.60 g = 32.2 fUsec h = 0.25 average height For 2 Day Release Solve For A = Q = 0.0188 = 0.0078 SF Cd 2gh (0.6) 2(32.2)(0.25) Solve for Orifice Diameter, D A = 0.0078SF = rrR2 R = 0.0498 ft. = 0.598 inch D = 1.2 inch For 5 Day Release Solve For A = Q = 0.0075 = 0.0031 SF Cd 2gh (0.6) 2(32.2)(0.25) Solve for Orifice Diameter, D A = 0.0031 SF = rr R2 R = 0.0315 ft. = 0.38 inch D = .76 inch Use 1.0 inch diameter orifice } ENG-4 6. FOREBAY VOLUME Main Bay Area at Elevation 39.5 = 4,500 SF Bottom of Vegetative Shelf Elevation 39.0 = 3,255 SF Average Area = 3,878 SF Volume = 3,878 SF X 0.5 Ft. = 1,939 CF Main Bay Area at Elevation 39.0 = 3,255 SF Main Bay Area at Elevation Bottom of Pond 32.5 = 603 SF Average Area = 1,929SF Volume = 1,929 SF X 6.5 Ft. = 12,539 CF TOTAL MAIN BAY VOLUME 14,478 CF Forebay Area at Elevation 39.5 = 1,350 SF Forebay Area at Elevation 32.5 = 34 SF Average Area = 692 SF Volume = 692 SF X 7 Ft. = 4,844 CF Forebay Volume shall contain at a minimum 20% of the total permanent pool volume. Permanent Pool Volume= Mainbay & Forebay = 14,478 CF + 4,844 CF = 19,322 CF Forebay Volume = 4,844 CF FOREBAY VOLUME / PERMANENT POOL VOLUME = 4,844 CF / 19,322 CF = 25.1 % O.K. } ` ENG-5 7. AVERAGE DEPTH Total Pond Volume = 19,322 CF Permanent Pool Surface Area = 6,075 SF Average Depth = 19,322 CF = 3.18 Ft. O.K. 6,075 SF 8. POND ROUTING Pre-development discharge, Post Development Q (CFS) and Post Development discharge. See attached HydroCAD Pond Routing Diagram and Calculations. c 1.JAH.CCCC_Park i ng Lot5Expa nsion.Ca I cs.4.6.09 '-•�4yr,57'.• _t t. 15 2P Parking Area (post) Wet Pond Parking Area (pre) Subs\\ a Reach on Llnk Dinage Diagram for CCCC Parking Lot#5 Expansion / Prepared by Parker 8 Associates, Inc, Printed 4/1/2009 FHydr.0 D®8.50 s/n 005202 ©2007 HydroCAD Software Solutions LLC CCCC Parking Lot#5 Expansion Type 11 24-hr 1 Year 24-HR Rainfall=3.53" Prepared by Parker & Associates, Inc Printed 4/1/2009 HydroCAD®8.50 s/n 005202 @ 2007 HydroCAD Software Solutions LLC Page 2 Summary for Subcatchment IIS: Parking Area (post) Runoff 2.89 cfs @ 11.96 hrs, Volume= 0.120 af, Depth> 1.39" Runoff by SCS TR-20 method, UH=SCS, Time Span= 4.00-19.99 hrs, dt= 0.03 hrs Type II 24-hr 1 Year 24-HR Rainfall=3.53" Area (sf) CN Description 26,362 95 18,638 55 45,000 78 Weighted Average 45,000 Pervious Area Tc Length Slope Velocity Capacity Description min (feet) (ft/ft) (f/sec) (cfs) 5.0 Direct Entry, Subcatchment 1S: Parking Area (post) Hydrograph e Runoff 3 p45� -Q pe II 24-hr 1 Year 24-HR Rainfall=3.53" Ti : Runoff Area=45,000 sf 2 Runoff Volume=0.120 of Runoff Depth>1.39" Tc=5.0 min CN=78 jw" 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Time (hours) CCCC Parking Lot#5 Expansion Type 1124-hr 1 Year 24-HR Rainfall=3.53" Prepared by Parker & Associates, Inc Printed 4/1/2009 HydroCAD@ 8.50 s/n 005202 @ 2007 HydroCAD Software Solutions LLC Page 3 Summary for Subcatchment 3S: Parking Area (pre) Runoff = 0.44 cfs @ 11.99 hrs, Volume= 0.026 af, Depth> 0.30" Runoff by SCS TR-20 method, UH=SCS, Time Span= 4.00-19.99 hrs, dt= 0.03 hrs Type II 24-hr 1 Year 24-HR Rainfall=3.53" Area (sf) CN Description 26,362 55 18,638 55 45,000 55 Weighted Average 45,000 Pervious Area Tc Length Slope Velocity Capacity Description min (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 3S: Parking Area (pre) Hydrograph 0.48 ❑RunoH 042 Chn� a�� 0L15 Type II 24-hr 1 Year 24-HR 04 0.38 Rainfall=3.53" � 0.3 0.34 Runoff Area=45 000 sf - 0.32 ) Runoff Volume=0.026 of 0.3- 0.28 Runoff Depth>0.30" 0.26 3 0.24 Tc=5.0 min u 0.22 0.2 CN=55 0.18 o.16 0.14" o.12- 0.1 0.08 0.06 0.04 0.02 / 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Time (hours) CCCC Parking Lot#5 Expansion Type // 24-hr 1 Year 24-HR Rainfall=3.53" Prepared by Parker & Associates, Inc Printed 4/1/2009 HydroCADO 8.50 s/n 005202 ©2007 HydroCAD Software Solutions LLC Page 4 Summary for Pond 2P: Wet Pond Inflow Area = 1.033 ac, 0.00% Impervious, Inflow Depth > 1.39" for 1 Year 24-HR event Inflow = 2.89 cfs @ 11.96 hrs, Volume= 0.120 of Outflow = 0.09 cfs @ 14.22 hrs, Volume= 0.037 af, Atten= 97%, Lag= 135.4 min Primary = 0.09 cfs @ 14.22 hrs, Volume= 0.037 of Routing by Dyn-Stor-Ind method, Time Span= 4.00-19.99 hrs, dt= 0.03 hrs Peak Elev= 40.02' @ 14.22 hrs Surf.Area= 8,000 sf Storage= 3,673 cf Plug-Flow detention time= 257.6 min calculated for 0.037 of (31% of inflow) Center-of-Mass det. time= 168.2 min ( 962.9 - 794.7 ) Volume Invert Avail.Storage Storage Description #1 39.50' 21,971 cf Custom Stage Data (Prismatic)Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 39.50 6,075 0 0 40.00 7,975 3,513 3,513 41.00 9,211 8,593 12,106 42.00 10,519 9,865 21,971 Device Routing Invert Outlet Devices #1 Primary 39.50' 15.0" x 115.0' long Culvert Ke= 0.600 A- CLOlc+- Wuvk Outlet Invert= 39.50' S= 0.0000 '/' Cc= 0.900 n= 0.013 #2 Device 1 39.50' 1.0" Vert. Orifice/Grate C= 0.600 4-- 1" Or;-AuL #3 Device 1 40.00' 2.00' x 2.00' Horiz. Orifice/Grate Limited to weir flow C= 0.600 &-41°fir #4 Primary 40.50' 10.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 ��°` 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 OutFlow Max=0.09 cfs @ 14.22 hrs HW=40.02' (Free Discharge) Culvert (Passes 0.09 cfs of 0.39 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.02 cfs @ 3.33 fps) 3=Orifice/Grate (Weir Controls 0.07 cfs @ 0.46 fps) =Broad-Crested Rectangular Weir ( Controls 0.00 cfs) 1 1 CCCC Parking Lot#5 Expansion Type 1124-hr 1 Year 24-HR Rainfall=3.53" Prepared by Parker & Associates, Inc Printed 4/1/2009 HydroCADO 8.50 s/n 005202 ©2007 HydroCAD Software Solutions LLC Page 5 Pond 2P: Wet Pond Hydrograph G Inflow z.es cls G Primary 3_ Inflow Area=1 .033 ac Peak Elev=40.02' i Storage=3,673 cf 2 : u o x , LL 1' Y� 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Time (hours) 01 C F5 4 (c« d lR Pre -ca o� o yy FS Poi Q � Lvj Pry-Q 0� �iLrited �.erseRaa27� asza�.�ddoaia�d�eYytG CONSULTING ENGINEERS ARD LAND SURVEYORS LETTER OF TRANSMITTAL P. 0. DRAWER 976 JACKSONVILLE, NORTH CAROLINA 28541 0976 919.455-2414 TO: Date: -November 2, 1992 ------------------------------- Attn: _Ms_._J inda_L�e�tj_s-------------- Ms. -Linda Lewis ___________ Ref: __L9astal_4ar91ina_____________ sion Of Environmentar Management 127 Cardi_naf Drive Extension ------LLDrUm11nl.ty__CojdP.ge_______-____ --- Wi fmi ngton,- Nortfi Cai offna -287+Z-51 384+3--------- ------P�ag-Lot_.#4t--------------- JESA Job No. ________________ GENTLEMEN: WE ARE SENDING YOU ® ATTACHED ❑ UNDER SEPARATE COVER ❑ PRINTS ❑ PLANS ❑ SPECIFICATIONS ❑ COPY OF LETTER ❑ OTHER DESCRIPTION: ----Notarized-Operation and Maintenance Plan for the above referenced project. --------------------------------------------------------------------------------------------------- -------------------------------------------------------------------------------------------------- -------------------------------------------------------------------------------------------------- THESE ARE TRANSMITTED AS CHECKED BELOW: ❑ FOR APPROVAL El AS REQUESTED ❑ FOR REVIEW AND COMMENT M FOR YOUR USE ❑ FOR BIDS DUE -------------------------------------------------------------------- 19------ ❑ PRINTS RETURNED AFTER LOAN TO US ❑ OTHER ----------------------------- REMARKS u UuuuU U � ---RECEIVED---------- ------ � ---- k ------------ �0Y 1442------------ -1 - ---- ---------=------ --------- ------ - --- ng � ia1 -------- NOV-0 d 1992---- ---------------------------w11mItD Regional-0-11-1-:-1 ------------------- - ---- --------------------------------nFm =------- DEM ----------------- � - _ ------------ Gordon Adams , P.E. CF (P) COPIES TO: ------------------------------------ (if enclosures are not as noted, kindly notify us at once) GRM/mew OPERATION AND MAINTENANCE SECTION III To assure that the stormwater pond operates as it was designed, proper maintenance of the stormwater pond and all appurtenances are necessary. Coastal Carolina Community College, as OWNER, will be responsible for proper maintenance of the pond. The following list is a guideline to help the OWNER properly maintain this system. 1. To assure that the pond will not fill with sediment during the construction period of Parking Lot #4, it is imperative that the erosion and sediment control measures designed be installed and maintained properly to prohibit any sediment from entering the pond until stabilization of the entire site has occurred. Grassing requirements should he followed strictly and a stand of grass shall be provided within 30 days to stabilize the dike and embankments and assure minimal erosion. Rip rap structures should be installed and maintained as shown and described in the plans and the erosion and sedimentation control "Narrative Report" to help reduce erosive velocities of stormwater encountered. Once stabilization has occurred these items should be checked on a monthly basis and properly repaired should any damage occur. 2. A pumping system will be required to completely drain the pond for maintenance. Bottom of pond elevations should be checked every year to determine the amount of sediment build-up. If sediment build-up is greater than one foot, the pond should be drained and excavated to the original pond bottom elevation. I� IS C RECEIVED NOV 0 4 1992 DEM NOV 3 1992 rROJ # 910203 Wilmington Regional Office DEM 3. The riser pipe, trash rack and small orifice opening should be checked every month to assure no clogging of the system or damage to the system has occurred. The trash rack screen and small orifice should be cleaned monthly to assure proper operation of the pond. 4. Mow back slope of dam frequently enough to preclude growth of trees which may result in soil piping along root channels. AGREED TO : PoM OWENS astal Carolina Community College 444 Western Blvd. Jacksonville, NC 28540 STATE OF NORTHCAROLINA COUNTY OF Q�lZoe�teecC� I, a Notar Public for said County and State, do r y certify that Lkv-�� personally appeared before me this day and a nowledged the due execution of the foregoing instrument. W n ss my hand and official seal, this the a 9 - day of 19 9� Notary Public My commission expires: SUMMER NOV 0 4 1992 D E M p.RoJ gtogc3 -2-