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HomeMy WebLinkAboutSW8101018_HISTORICAL FILE_20101129STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW8 101 18 DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE 2 010 ►1 2�1 YYYYMMDD NCDENR North Carolina Department of Environment and Natural Resources Beverly Eaves Perdue Governor November 29. 2010 Robert E. Langdon II, Manager RHGC Investments, LLC 223 Highway 70 East, Suite 100 Garner, NC 27529 Division of Water Quality Coleen H. Sullins Director Subject: State Stormwater Management Permit No. SW8 101018 Cape Fear Dialysis High Density Commercial Wet Detention Pond Project New Hanover County Dear Mr. Langdon: Dee Freeman Secretary The Wilmington Regional Office received a complete Stormwater Management Permit Application for Cape Fear Dialysis on October 29, 2010. 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 101018 dated November 29, 2010, for the construction of the subject project. This permit shall be effective from the date of issuance until November 29, 2020, and shall be subject to the conditions and limitations as specified therein. Please pay special attention to the Operation and Maintenance requirements in this permit. Failure to establish an adequate system for operation and maintenance of the stormwater management system will result in future compliance problems. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adfudicatory hearing upon written request within thirty (30) days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150E of the North Carolina General Statutes, and filed with the Office of Administrative Heaings, P.O. Drawer r 27447, Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and binding. If you have any questions, or need additional information concerning this matter, please contact Chris Baker, or me at (910) 796-7215. Sincerely, Georgette `Scott Stormwater Supervisor Division of Water Quality GDS/csb: S:\WQS\STORMWATER\PERMIT\101018.nov10 cc: Phil Tripp, P. E., Tripp Engineering, P. C. New Hanover County Building Inspections City of Wilmington Development Services New Hanover County Engineering Wilmington Regional Office Wilmington Regional Office One 127 Cardinal Drive Extension, Wilmington, North Carolina 28405 1VorthCarol ina Phone: 910-796-72151 FAX: 910-350-20041 Customer Service: 1-877 623-6748 o // Internet: w ncwaterquality.org �/ ati� mild State Stormwater Management Systems Permit No. SW8 101018 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 RHGC Investments, LLC Cape Fear Dialysis Enterprise Drive, Wilmington, New Hanover 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 November 29, 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 as described in Section 1.8 on page 3 of this permit. The stormwater control has been designed to handle the runoff from 81,927 square feet of impervious area. 3. A 50' wide vegetative buffer must be provided adjacent impounded structures, streams, rivers and 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 4,720 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 101018 7 The following design criteria have been provided in the wet detention pond and must be maintained at design condition: a. Drainage Area, Acres: Onsite, ft : Offsite, ft2: b. Total Impervious Surfaces, ft2: Onsite, ft2: Offsite, ft2: C. Design Storm, inches: d. Average Pond Design Depth, feet: e. TSS removal efficiency: f. Permanent Pool Elevation, FMS.�: g. Permanent Pool Surface Areq, ft h. Permitted Storage Volume, ft : i. Temporary Storage Elevation, FMSL: j. Pre-dev. 1 yr-24 hr. discharge rate, cfs: k. Controlling Orifice: I. Orifice flowrate, cfs: M. Permitted Forebay Volume, ft3: n. Fountain Horsepower o. Receiving Stream/River Basin: P. Stream Index Number: q. Classification of Water Body: II. SCHEDULE OF COMPLIANCE 2. 2.9 126,222 None 81,927 81,927 None 1.5 3 90% 32 9,521 10,351 32.9 3.66 2"0 pipe 0.06 4,740 N/A Smith Creek / Cape Fear 18-74-62 "C; Sw" 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. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. The permittee shall at all time provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semiannual scheduled inspections (every 6 months). b. Sediment removal. C. Mowing and re -vegetation of slopes and the vegetated filter. d. Immediate repair of eroded areas. e. Maintenance of all slopes in accordance with approved plans and specifications. f. Debris removal and unclogging of outlet structure, orifice device, flow spreader, catch basins and piping. a. Access to the outlet structure must be available at all times. 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. Page 3 of 7 State Stormwater Management Systems Permit No. SW8 101018 5. 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. 6. 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. 7. 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. 8. Access to the stormwater facilities for inspection and maintenance shall be maintained via appropriate recorded easements at all times. 9. The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any modification to the approved plans, including, but not limited to, those listed below: a. Any revision to any item shown on the approved plans, including the stormwater management measures, built -upon area, details, etc. b. Project name change. C. Transfer of ownership. d. Redesign or addition to the approved amount of built -upon area or to the drainage area. e. Further 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. f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. 10. 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. 11. A copy of the approved plans and specifications shall be maintained on file by the Permittee at all times. 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. III. GENERAL CONDITIONS This permit is not transferable to any person or entity except after notice to and approval by the Director. In the event of a change of ownership, or a name change, the permittee must submit a completed Name/Ownership Change Form signed by both parties, to the Division of Water Quality, accompanied by the supporting documentation as listed on page 2 of the form. The approval of this request will be considered on its merits and may or may not be approved. Page 4 of 7 State Stormwater Management Systems Permit No. SW8 101018 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 nor the transfer of common area to a third party constitutes an approved transfer of the stormwater permit. 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, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 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. 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. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 10. The permittee shall notify the Division of any name, ownership or mailing address changes at least 30 days prior to making such changes. 11. 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 29th day of November, 2010. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION for coigen H. 6uwuns, uirector Division of Water Quality By Authority of the Environmental Management Commission Page 5 of 7 State Stormwater Management Systems Permit No. SW8 101018 Cape Fear Dialysis Stormwater Permit No. SW8 101018 New Hanover 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: Signature Registration Number Date SEAL Page 6 of 7 State Stormwater Management Systems Permit No. SW8 101018 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 New Hanover County Building Inspections Page 7 of 7 ..,.-:DWQ USE ONLY--- D"ate Received Fee Paid Permit Number Applicable Rules: ❑ Coastal SW -1995 ❑ Coastal SW - 2008 ❑ Ph II - Post Construction (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 This form may be photocopied for use as an original I. 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.): Cape Fear Dialvsis 2. Location of Project (street address): 3005 Enterprise Drive City:Wilmington County:NewHanover Zip:28405 3. Directions to project (from nearest major intersection): Travel approximate 800 if east of the intersection of INC 132 and SR 2206 (Northchase Pkwy SE) to SR 2683 Enterprise Drive. Site is on the left at the corner of SR 2683 and SR 2206 4. Latitude:34° 18' 16" N Longitude:77* 52' 30" W of the main entrance to the project. II. 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 , 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, and the previous name of the project, if different than currently proposed, 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 ❑NPDES Industrial Stormwater ®Sedimentation/Erosion Control: 2.9 ac of Disturbed Area 0404/401 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: OCT 2 9 2010 FormSWU-101 Version07Jun2010 Page Iof6 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: RHGC Investments LLC Signing Official & Title:Robert E. Langdon II . MA n a.. b.Contact information for person listed in item la above: Street Address:223 Highway 70 East, Suite 100 City:Garner State:NC Zip:27529 Mailing Address (if applicable):same State: Phone: (919) ) 662-1001 Fax: (919 ) 662-1002 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:Neuse River Corporation Signing Official & Title:Stephen Hill, President b. Contact information for person listed in item 2a above: Street Address:1435 Highwav 258 North City:Kinston State:NC Zip:28501 Mailing Address (if applicable):3320 Pauls Path Road City:La Grange State:NC Zip:28551 Phone: (252 ) 523-9094 Fax: (252 ) 523-0908 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/ Signing Official & b.Contact information for person listed in item 3a above: Mailing Address: City: State: Zip: Form SWU-101 Version 07Jun2010 Page 2 of 7 Phone: (407 ) 588-2124 Fax: Email:drew@hillgrayseven.com 4. Local jurisdiction for building permits: New Hanover County Point of Contact: Phone #: (910 ) 798-7175 IV. PROJECT INFORMATION 1. In the space provided below, briefly summarize how the stormwater runoff will be treated. one wet detention basin 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 Cape Fear River basin. 4. Total Property Area: 4.48 acres 5. Total Coastal Wetlands Area: 0 acres 6. Total Surface Water Area: 0 acres 7. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project Area`:4.48 acres Total project area shall be calculated to exclude thefollowing: the normal pool of inn ounded structures, the area between the banks of streams and rivers, the area below the Normal High Water (NSW) line or Mean High Water (MHW) line, and coastal wetlands landward from the NHW (or MHW) line. The 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 = 42.0 % 9. How many drainage areas does the project have?1 (For high density, carat I for each proposed engineered stornnoater BMP. For low densihj and other projects, use 1 for the whole properhj 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. RECEIVED OCT 2 9 2010 BY: Form SWU-101 Version 07Jun2010 Page 3 of 7 Basin Information Drainag a Area 1 Draina e Area _ Draina e Area _ Draina e Area _ Receiving Stream Name Smith Creek Stream Class * C; Sw Stream Index Number * 18-74-62 Total Drainage Area (so 126,222 On -site Drainage Area (so 126,222 Off -site Drainage Area (sf) 1 0 Pro osed Impervious Area** (so 81,927 % Im ervious Area** total 64.9 Impervious" Surface Aiea Drainage Area 1 Drainage Area _ Drainage Area Drainage Area On -site Buildings/Lots (so 11,905 On -site Streets (so 0 On -site Parking (so 62,599 On -site Sidewalks (so 2,703 Other on -site (so 0 Future (so 4,720 Off -site (so 0 Existing BUA*** (so 0 Total (so: 1 81,927 Stream Class and Index Number can be determined at: http://portal.ncdenr.or vebAi) sAsulclassilications 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 auount of existing BUA that will remain after development. Do not 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. Auto CAD Projects in Union County: Contact DWQ Central Ojjice 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://I)ortal.ticdenr.oriz/web/wq/ws/su/bmo-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 fromhttp://portal.ncdennorg/web/wq/ws/su/statesw/forms dots. Thecomplete 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/wg/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.ncdennorg/web/wg/ws/su/statesw/forms_docs. 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 Form. (if required as per Part VII below) RECEIVED 3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M agreement(s) for each BMP. OCT 2 9 2010 4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to h!!p://www.envheII2.org/pages/onestopexi2ress.html for information on the ExpresslMram and the associated fees. Contact the appropriate regional office Express Permit Coord natoi for additional information and to schedule the required application meeting.) Form SWU-101 Version 07Jun2010 Page 4 of 7 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 1/2 mile of the site boundary, include the Ih 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. I. 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. Existing 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"xll" 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 verifij the SHWT prior to submittal, (910) 796-7378.) 10. A copy of the most current property deed. Deed book: 5462 Page No: 2442 11. For corporations and limited liability corporations (LLC): Provide documentation from the NC 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.secretaly.state.nc.us/Corl2orations/CSearch.aspx CC`i VII. DEED RESTRICTIONS AND PROTECTIVE COVENANTS OCR 2 9 2��0 For all subdivisions, outparcels, and future development, the appropriate property restrictions and protectiv covenants are required to be recorded prior to the sale of any lot. If lot sizes vary signified�0yjor the pr poste ed BUA allocations vary, a table listing each lot number, lot size, and the allowable built-upoA-1drWm—ust 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 htto://aortalncdenr.org/web/wg/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. Form SWU-101 Version 07Jun2010 Page 5 of 7 'VIII. 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.Phillip G. Tripp, P.E. Consulting Firm: Tripp Engineering, P.C. Mailing Address:419 Chestnut Street City: W ilmington Phone: (910 ) 763-5100 Email: trippeng@ec.rr.com State:NC Zip:28401 Fax: (910 1 763-5631 IX. PROPERTY OWNER AUTHORIZATION (if Cott tact Information, item 2 has been filled out, complete this section) I, (print or type nante of person listed in Contact Information, item 2a) Stephen Hill , certify that I own the property identified in this permit application, and thus give permission to (print or hjpe name of person listed in Contact Information, itent la) Robert E. Langdon 11 with (print or type name of organization listed in Contact Information, item la) RHGC Investments, LLC 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 1 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 c•vi en (ties of u �a- 0 r ay, pursuant to NCGS 143-215.6. Signature � n-1- a, X) /J^ t• a Notary Public for the State of /�BiC/il Lg<!, Azolzounty of do hereby certify that le. personally appeared before me this aVo ay of D 0/0 and acknoww edge the due execution of the application for a stormwater permit. Witness my hand and official seal, •H' �"N •: SEAL My commission expires���tc �6.1 OGZ 2 9 2010 Form SWU-101 Version 07Jun2010 Page 6 of 7 A. APPLICANT'S CERTIFICATION I, (print or type name of person listed in Contact Information, item la) Robert E. Langdon It 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 stormwater rules under 15A NCAC 2I-I .1000, SL 2006-246 (Ph. II - Post Construction) or SL 2008-211. Signature: 4- 1Date:: 16'a6 �a�ir6 I, U ldt l t; 5 • / t oye- N, a Notary Public for the State of o✓W Q .root County of L" 01 r do hereby certify that R-DbtY+ 2. Lart kj z z personally appeared before me this day of QCIObQ✓ �O10 and acknowledge the due execution of the application for a stormwater permit. Witness my hand and official seal, MOO G OZggy _ = U G 2 SEAL My commission expires Pe e ern be-- q , a D 13 OCT 2 9 2010 Form SWU-101 Version 07Jun2010 Page 7 of 7 Name: I Project Location: wA ('rnun" (rnn<,n<`hl,lml I Add info required (vesfno)) Date received: I C/ Symbols for completing form: '✓'= Yes/OK; ' x'= No/Deficient; 'n/a' or Rule(s) Subject (check all that apply): ❑ 1995 Coastal ❑ 2008 Coastal ❑ Phase II ❑ Universal Paperwork: O'�Check for $505 (must be no older than 6 months) 2�_Application form with correct/original signatures (original plus 1 copy). If Corporation or.LLC also: Print the info from the NCSOS o Either, 1.) The applicant is listed on the NCSOS with his/her correct title or, 2.) A notarized letter of authorization has been provided: W---Supplements (1 original per BMP). BMP type(s): qD07 %Q-0 QUO&M with correct/original signatures (1 original per BMP, except level spreaders/filter strips and swales) Deed restrictions (if outparcel or subdividing) (original plus 1 copy) o Deed restriction template (signed and notarized) or o Proposed Declaration of Covenants and Restrictions (signed and notarized) LY" ils report identifying the SHWT p� Supporting calculations, signed & sealed (if necessary) 13-1�eceiving stream classification: c4L,) , If SA or ORW also: o SA: USGS topo map with the site, the receiving waters and the mile radius shown to scale. o ORW: 575 ft of MHWL for Area of Environmental Concern and max BUA per rule. I'LdKModifications: 1.) If built: Designer's Cert., 2.) If partially built: Partial Cert., 3.) If not built: No Cert. needed. Development Type (check all that apply): ❑ Residential or CKommercial ❑ Deed restrictions match? ❑ Subdivision or ®'S°ingle Lot ❑ Deed restrictions match? High Density or ❑ Low Density ❑ Deed restrictions match? ❑ Offsite project ❑ Redevelopment ❑ Modification ❑ Exempt ❑ NCG02 (bulkhead) ❑ NCG03 (clear/grade) ❑ NCG04 (linear) ,,/ Density: t� I `1 ❑, EtUA calculations include common areas, clubhouse, sidewalks, etc. ❑/BUA %: 1AJ , Matches high/low density requirement for rule and receiving stream class. Vo obvious math errors High Density: Design storm correct for rule and receiving stream class. Plans,�igned and sealed (2 sets): p Two sets received LVLayout (with proposed BUA dimensions) O-'�Grading ❑ Drainage area map (all HD systems 14 curb outlet swales) Vicinity map @--rroject Boundaries FAKegend W Wetlands: o Delineated on plans s--"No wetlands onsite" on plans ❑ Details: o Roads o Cul-de-sacs o Curbing o Sidewalk o--BMPs/ Level spreaders/ Filter strips/ Curb outlet swales o Buildings (Apts or Condos) Offsite Projects: ❑ Desi er's Certification has been submitted for the Offsite BMP receiving the runoff from the project. ❑ ed restrictions have been recorded and a copy submitted for the Offsite BMP permit. Lot size has not changed from what was approved under the Master Plan. ❑ Correct lot number is referenced on the supplement form. ❑ Offsite system is in compliance with its permit, if known. Infiltration Projects: Soils report: SHWT, soil type, and expected infiltration rate are provided. ❑ DWQ has conducted a site visit? Date: Wet Pon- : Permanent Pool Meets One of the Following: Is located no lower than 6" below the estimated SHWT. Is groundwater is quantified and evaluated, AND Storage volume verified, AND Outlet evaluated for free drainage to the receiving waters under SHWT conditions. Decision (check one): ❑ Complete: Return file to admin (Jo Casmer) to log in. (Stamped in received date = BIMS date) ❑ Slightly incomplete: E-mail consultant, request information to be returned within one business day (24 hours after request. Info requests on Friday, allow a return on the following business day). If info not returned, issue an application return letter and give everything to admin. (Add info received date = BIMS date) ❑ Substantially incomplete: Issue an application return letter and give everything to admin. TRII'P ENGINEERING, P.C. 0 419 Chestnut Street Wilmington, North Carolina 28401 Phone: (910) 763-5100 • FAX: (910) 763-5631 October 29, 2010 REIM uu I 4 3 LU 10 NCDENR Division of Water Quality 127 Cardinal Drive Wilmington, NC 28405-3845 Attn: Ms. Linda Lewis Re: Cape Fear Dialysis New Hanover County, NC TE 10027 Dear Linda: Enclosed please find the following items for the above referenced project: . 2 sets of plans • $505 check • Narrative • Stormwater application — one original and one copy • Wet Detention Basin Supplement • Wet Detention Basin Operation and Maintenance Agreement • 2 sets of calculations • USGS map • FEMA map • Soils Report • Copy of the Deed & Deed Restrictions • Secretary of State information Please review for approval and contact us with any questions, comments or if you need additional information. Thank you. Sincerely, Tripp Engineering, P.C. Zee f/Galloway ALG:dcb RECEIVED OCT 2 9 2010 BY:__ Enc. I - 1 TE 10027 Stormwater Drainage System & Erosion Control Narrative Cape Fear Dialysis 3005 Enterprise Drive, Wilmington, NC The Cape Fear Dialysis project is a proposed medical facility located on Enterprise Drive in Wilmington, NC, New Hanover County, parcel ID # R02620-004-019. Cape Fear Dialysis is owned by RHGC Investments, LLC. The entire site is approximately 4.48 acres of land, of which 2.0 acres is proposed for developed. The Cape Fear Dialysis facility will be serviced by CFPUA for public water and sewer systems. No wetlands exist on the project site. RHGC Investments, LLC is proposing to build an 11,905 sf. medical facility building, parking, sidewalks, landscape areas, a forebay and wet detention pond system. A future building is included in the proposed impervious area as 4,720 sf. New impervious area for this project is estimated to be 81,927 sf. (1.88 acres). After project completion, the total amount of impervious area for this site will be 81,927 sf. or 42% of the entire site. The estimated amount of disturbed area is 2.96 acres. The site will have one drainage area consisting of 2.90 acres. No off -site runoff flows onto the site and therefore, none will be routed to the proposed BMP. All outflow from the drainage basin will drain to Smith Creek; classification C;Sw, Index No. 18-74-53, in the Cape Fear River Basin. All built up areas (BUAs) will be collected and routed to a wet detention pond BMP. The drainage area will be treated by one wet detention pond sized to collect the first 1.5" of runoff storm and 90% TSS removal. The wet detention pond was designed to meet or exceed current State and County requirements and is designed for high density projects. The pond will be sized to hold the required pre/post development volume difference for a 24-hr. 1-yr., 2-yr., 10-yr. and 25-yr. storm events. The pond has also been designed to include a 16-foot emergency spillway to handle flow from a 100-yr. storm event. Outflow from the wet detention pond will be to a proposed 18" RCP drainage pipe that will tie into an existing outlet pipe in the adjacent west property. The SHGWT elevation is approximately 46" below the existing ground elevation, which is approximately 0.5' within the proposed normal pool elevation in the wet detention basin. Dj T OCT 2 9 20to 1 TE 10027 Prior to clearing of the site, two construction entrances and temporary silt fence will be installed. The removal of trees, vegetation, sidewalks, curbs and asphalt surfaces and will occur. After clearing of the project site, the detention pond will be constructed to include the proposed forebay, wet detention pond, and the temporary skimmer. The parking areas and building locations will then be graded. Underground utilities, including the stormwater drainage system will be installed and inlet protection put into place. The proposed buildings will be constructed followed by paving, sidewalk installation, final site grading, stabilization of the site and landscaping. Temporary erosion control measures will remain in -place until such time as when areas are stabilized. Permanent measures include permanent stands of grass and energy dissipaters. Specific measures and directions to the contractor are noted on the plans. Please refer to Sheet C2 for detail erosion control measures and construction sequence. Pre -Construction Runoff. The runoff from the site before disturbance is found using a coefficient of runoff "C" factor of 0.25, a 10-yr. rainfall intensity "I" of 9.43 in/hr and an area of 2.90 acres. Q pre = 0.25 x 9.43 x 2.90 = 6.84 cfs Post -Construction Runoff. The runoff after construction is determined using a "C" = 0.71 and the same intensity and area as before. Q post = 0.71 x 9.43 x 2.90 = 19.42 cfs Summary For this 2.90 ac. Drainage area, all on -site drainage will be collected by a stormwater drainage system and routed to a forebay and wet detention pond. The pond has been sized to retain the pre/post development runoff for the 24-hour 1-yr, 2-yr, l0-yr. and 25- yr. storm events and to capture the first 1.5" of runoff from the new development. The pond outlet structure was designed to release the required first 1.5" runoff volume over 2 days to 5 days as well as control the release of the various year storms to the existing stormwater outlet pipe located on Enterprise Dr. A 16-foot emergency spillway was added to the pond in order handle the drainage from a 100-yr. storm event. Temporary erosion control measures include two gravel construction entrances, silt fence, inlet protection and skimmer. Permanent erosion control measures include energy dissipaters and established grass areas. 10/25/2010 Cape Fear Dialysis 10027 ALG Stormwater Pond Calculations Total Drainacie Area s2 . ft. acres 126,222 2.90 Im ervious Area Land Use sq. ft. acres Parking Area 62,599 1.44 Sidewalk 2,703 0.06 Proposed Building 11,905 0.27 Future Building 4,720 0.11 Total 81,927 1.88 Stormwater Calculations: Time of Concentration Hydraulic Length (L) = 300 ft. change in Height (H) = 1 ft. Tc = (L' /H)'0' / 128 5.67 min. Flow for 1 year, 24 hour Storm (Q1) QPRE _ (CPRE) x (11) x (Area) 3.66 cfs QPosT = (CPosT) x (11) x (Area) 10.39 cfs Detention Pond Design: Main Does Area Drain to SA Waters? % impervious = 0.649 = 64.9% CPRE - 0.25 CPosT = (% imp.)(.95)+(1% imp.)(.25) 0.71 11 = 5.05 in/hr 110= 7.81 in/hr Flow for 10 year, 24 hour Storm (010) CPRE _ (QPRE) X (110) x (Area) 5.66 cfs QPosT = (CPosT) x (11o) x (Area) 16.07 cfs State Surface Area Reauired at normal Dool: Pond side slopes = 3 :1 Depth b/w Bot. of V.S. 8 5.00 Bot. Pool = SA/DA = 0.0754 Chart for 90%TSS Removal for Wet Detention Pond without Vegetative Filter) Red SA = SA/DA x Total Drainage Area 9,517 sq. ft. Provided SA - 9,521 sq. ft. or Banx 36.Uu 14,275 38,180 64,396 ITop of Bank 36.00 3,985 10,187 16,53, P. Pool 32.90 10,357 4,017 26,216 Temp. Pool 32.90 2,587 1,967 6,347 of V.S. 32.50 9,730 4,367 22,199 Perm. Pool 32.00 1,785 810 4,380 n. Pool 32.00 7,736 3,300 17,832 Bot. of V.S. 31.50 1,455 3,570 3,570 of V.S. 31.50 5,463 14,533 14,533 Bot. Pool 28.00 585 0 0 of Pool 26.50 350 0 0 Bottom SA = 350 sq. ft. /�lV Bottom of VS SA= 5,463 sq. ft. Permanent Pool SA = 7,736 sq, ft. Vol. = [((PP SA + Bottom VS SA)/2) x (PP el. - Bottom VS el.)] + [((Bottom VS SA + Bottom Pool SA)/2) x (Bottom VS el. - Bottom Pool el.)] Fore bay Provided Normal Forebav Pond Volume IEL= 16.0; Bottom of Pool SA= 585 sq. ft. 19.0; Permanent Pool SA = 1,785 sq. ft. Vol. = [(P.P. SA + Bottom SA) / 2) x (P.P. el. - Bottom el.) 4,740 cu. ft. Depth= 4.00 ft Required Forebay Volume 18%-22% required) Vol. = 22% of Permanent Pool volume of Pond and Forebay = 4,966 cu. ft. Volume required to contain from design storm(ft0)= 10,006 Therefore, maximum sta a is between stages and cumulative volumes (main pond plus forebay): Sta a Cuml. Volume 32.00 0 36.00 58,718 Total Provided PP Volume = 22,572 cu.ft. Actual % of Forebay Volume = 21.00 using Interpolation to determine stage at volume = 10,006 Maximum Stage (feet) = 32.68 A Therefore set Temporary Pool Elevation at or higher than Maximum Stage p p��i��i �p�•'FESSI. PP Elev 32 -Cape Fear Dialysis DEN Wet Detention Suppl 8 Pond Calc 10-19-10 1 of 4 -'111111101' Io•Z01•ID 10/25/2010 Cape Fear Dialysis 10027 ALG Stormwater Pond Calculations Provided Main Pond Storage Volume: Vol. _ [((PP SA + Top of VS SA)/2) x (Top of VS Elev. - PP Elev.)] + [((Top of VS SA+TP SA)/2) x (TP Elev. - Top of VS Elev.)] 8,384 cu. ft. Provided Forebay Storage Volume El. = 23.0; Permanent Pool SA = 1,785 sq. ft. EI. = 24.90; Temp. Pool SA = 2,587 s . ft. Vol. _ [((PP SA + Temp. Pool SA)/2) x (Temp. Pool Elev. - PP Elev.)] = 1,967 cu. ft. Total Provided Storage Volume Vol. = 10,351 cu.ft. State Volume Req. for Storage of first 1.5" runoff Rv= .05+.009(%imp) 0.634 V= (Design rainfall)(Rv)(Drainage Area) 10,006 cu.ft, Outlet Structure Design: Flow for 2-day drawdown: for Min. Volume required of stormwater, Q = Min. Vol. Req. 1172,800 sec. (2-days) 0.058 cfs Required Area of Pipe for 2-day drawdown: A= Q/ [Cd x SQRT(2 x g x h)] Cd = 0.6 9 = 32.2 ft./S2 h = (T.P. elev.- N.P. Elev.) /3 0.30 ft. A = 0.0220 s . ft. Diameter of Pipe for 2-day drawdown: DIA. = SQRT[(A x 4) / pi] 0.1672 ft. 2.01 in. Drawdown Calculation Orifice Used= 2 in. Drawdown rate= 0,058 cfs Drawdown lime= 2.08 days Outlet Structure Check: Using a 4' x 4' Basin, Perimeter(L = 16 ft. Q = CIA C = (% imp.)(.95) + (1 % imp.)(.25) = 0.71 1 = 7.81 in. for a 10 yr. Storm A = 2.90 Acres 16.07 cfs Flow for 5-day drawdown: for Min. Volume required of Stormwater, Q = Temp. Pool Vol. / 432,000 sec. (5-days) 0.024 cfs Required Area of Pipe for 5-day drawdown: A= Q/[CdxSQRT(2xgxh)] Cd = 0.6 9 = 32.2 ft./S2 h = (F.P. elev. - N.P. Elev.) 13 0.3 ft. A = 0.0091 s . ft. Diameter of Pipe for 5-day drawdown: DIA. = SQRT[(A x 4) / pi] = 0.1076 ft. 1.29 in. Q= Cwx Lx H" -7 H = [Q / (Cw x L))W Cw = 3 - 0.48 ft. Peak elevation = flood pool elevation + H 33.38 ft. PP Elev 32 -Cape Fear Dialysis DENR Wet Detention Suppl 8 Pond Calc 10-19-10 2 of 4 10/25/2010 Cape Fear Dialysis 10027 ALG Stormwater Pond Calculations Storage Volume - Non SA Waters - Minimum Volume Required Volume of Runoff = V = (3630) (Design Rainfall Depth) (Rv) (Drainage Area) where Rv = 0.05+0.0090A) Rv = Runoff Coefficient = storm runoff (inches) / storm rainfall (inches) IA = Impervious Fraction = Impervious portion of the drainage area (acres) / Drainage area (acres) IA= 64.9 % Rv= 0,634 Design Rainfall Depth = 1.50 in. Drainage Area = 2.90 acres Volume = 10,006 ft3 PP Elev 32 - Cape Fear Dialysis DENR Wet Detention Suppl & Pond Calc 10-19-10 3 of 4 10/25/2010 Cape Fear Dialysis 10027 ALG Stormwater Pond Calculations Average Depth Calculated Permanent Pool Volume (ft') 22,572.3 Permanent Pool Area (ft) 9,521.0 Option 1 - Average Depth (ft) 2.37 Bottom Vegetated Shelf Area (ft') 6918.0 Permanent Pool Area (ft) 9521.0 Bottom Pond Area (it') 350.0 Depth (ft) 5.0 Option 2 - Average Depth (ft) 3.06 Average Depth for use in Table (ft) 3.06 Round to nearest 0.5 for SA/DA (ft) ' $7�3 00:- i PP Elev 32 -Cape Fear Diatysis DENR Wet Detention Suppl 8 Pond Calc 10.19-10 4 0f 4 Table 1.1 85% TSS Removal 30 Foot Vegetated Filter Required Average Depth IMP% 3.0' 3.5' 4.0' 4.5' 5.0' 5.5' 6.0' 1 6.5' 7.0' 7.5' 10% 0.9 0.8 0.7 0.6 0.5 0.0 0.0 0.0 0.0 0.0 20% 1.7 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 30% 2.5 2.2 1.9 1.8 1.6 1.5 1.3 1.2 1.0 0.9 40% 3.4 3.0 2.6 2.4 2.1 1.9 1.6 1.4 1.1 1.0 50% 4.2 3.7 3.3 3.0 2.7 2.4 2.1 1.8 1.5 1.3 60% 5.0 4.5 3.8 3.5 3.2 2.9 2.6 2.3 2.0 1.6 70%1 6.0 1 5.2 1 4.5 1 4.1 1 3.7 1 3.3 1 2.9 2.5 1 2.1 1.8 80% 6.8 6.0 5.2 4.7 4.2 3.7 3.2 1 2.7 2.2 2.0 90%1 7.5 1 6.5 5.8 5.3 1 4.8 4.3 1 3.8 1 3.3 2.8 1.3 100%1 8.2 1 7.4 1 6.8 1 6.2 1 5.6 1 5.0 1 4.4 1 3.8 1 3.2 1 2.6 90% TSS Removal No Vegetated Filter Required Average Depth IMP% 3.0' 3.5' 4.0' 4.5' 5.0' 5.5' 6.0' 6.5' 7.0' 7.5' 10% 1.3 1.0 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 20% 2.4 2.0 1.8 1.7 1.5 1.4 1.2 1.0 0.9 0.6 30% 3.5 3.0 2.7 2.5 2.2 1.9 1.6 1.3 1.1 0.8 40% 4.5 4.0 3.5 3.1 2.8 2.5 2.1 1.8 1.4 1.1 50% 5.6 5.0 4.3 3.9 3.5 3.1 2.7 2.3 1.9 1.5 60% .0 6.0 5.3 4.8 4.3 3.9 3.4 2.9 2.4 1.9 70% 8.1 5.5 5.0 4.5 3.9 3.4 2.9 2.3 80% 9.4 6.4 5.7 5.2 4.6 4.0 3.42.8 90% 10.7 E7.OE 7.2 65 59 5.2 4.6 3.9100% 12.0 8.1 7.3 6.6 5.8 5.1 4.3 3.6 Note: The required surface area calculated from the tables is to be provided at the permanent pool elevation. Hobbs, Upchurch and Associates, P.A. PP Elev 32 - Cape Fear Dialysis DENR Wet Detention Suppt & Pond Calc 10-19-10.xls Myrtle Beach, South Carolina 10/25/2010 Cape Fear Dialysis 10027 ALG Skimmer & Orifice Calculations Skimmer Size Calcs 10027 Volume = (1,800 cf/ac ` 2.9 ac) Volume = 5,220 cf, Pond Determine Skimmer Size: Volume Required = 5,220 cf. Draw Down Time= 2 Days 2 Day Draw Down: 2.5 in skimmer From Chart: 12,468.00 cf. (11/07 Determine Orifice Size: 2 Day Factor: 2,540 2 Day Area of Orifice = Required Vol/ 2 Day Factor 2.06 sq. in. 2 Day Diameter of Orifice = (sgrt of (2 day orifice / Tr)) x 2 = 1.62 in Use: 2.5 inch skimmer with 1.62 inch orifice 10/25/2010 Cape Fear Dialysis 10027 ALG 25 Year Storm Pipe and HGL Calculations 25 Year LOCATION AREA RUNOFF COEFF. C RAIN INT. I in/hr INCREMENTAL FLOW TOTAL FLOW PIPE DATA _ FROM TO SUB TOTAL (Acre) TOTAL Acre O=CIA (C.F.S. REO'D O=CIA (C.F.S. REO'D TYPE N LENGTH k S% SIZE in VEL. (fps) O AVAIL. cts) Friction Loss(Hf) (k Pond Elev. ft Inlet WS Elev. k Rim Efev. it CI #8 CI #7 0.23 0.23 a80 10.64 1.96 1.96 RCP 0.013 63 1.00% 15 1.6 6.48 0.0398 33.00 33.42 35.20 CI #7 CI #1 0.33 0.56 0.80 10.64 2.81 4.77 RCP 0.013 128 0.30% 18 2.7 5.77 0.1928 33.00 33.38 35.20 CI #6 CI #5 0.41 0.41 0.80 10.64 3.49 3.49 RCP 0.013 106 0.30% 15 2.8 3.55 0.2130 33.00 34.92 35.20 CI #5 CI #4 0.19 0.60 0.80 10.64 1.62 5.11 RCP 0.013 97 0.30% 18 2.9 5.77 0A677 33.00 34.71 35.20 CI #4 CI #3 0.23 0.83 0.80 10.64 1.96 7.06 RCP 0.013 97 0.50 % 18 4.0 7.45 0.3210 33.00 34.54 35.20 CI #3 CI #2 0.25 1.08 0.80 10.64 2.13 9.19 RCP 0.013 152 1.00% 18 5.2 10.53 0.8517 33.00 34.22 35.20 CI #2 CI #1 0A0 1.18 0.80 10.64 0.85 10.04 RCP 0.013 115 0.30% 24 3.2 12.42 0.1825 33.00 33.37 35.20 CI*1 Pond 0.35 2.09 0.80 10.64 2.98 17.79 RCP 0.013 37 0.60% 24 5.7 17.57 0.1842 33.00 33.18 35.20 ASSUME FULL CAPACITY @ 1.73% Pond Required Zone 1 for a 24" 6'x8'x 18" Energy Dissipater Sizing (WxLxH) Minimum Provided Zone 1 for a 24" 6'x8'x 18" &VOOS201 N10027-Cape Fear O 1013Yskula ms1f0027 250drah apes 1e25-10 June 23, 2009 Soils Engineering and Testing Services Tripp Engineering, P.C. 419 Chestnut Street Wilmington, North Carolina 28401 Attention: Mr. Larry Knoerl Reference: Seasonal High Watertable Estimate Proposed Stormwater Pond Expansion Britthaven Northchase Wilmington, North Carolina RFTS Job No. 479-09 Dear Mr. Knorel: M ocT 2 9 2010 RFTS is pleased to provide testing services during the design of the stormwater pond expansion at the Britthaven development located in Northchase in Wilmington, North Carolina. DESCRIPTION OF ACTIVITIES AND FINDINGS As requested, our staff visited the site on June 18, 2009 to estimate the seasonal high watertable at one location as identified by you. Seasonal High Watertable Estimates A hand auger boring was advanced to a depth of approximately 6 feet below the ground surface within the area of the proposed pond expansion. The encountered soils were logged and visually classified by depth and a Munsell Soil Color Chart was used to determine the hue, value, and chroma of the visually distinct soil layers. Our soil logs are presented in Table I. Location I Soils encountered in our boring location consisted of relatively clean interbedded fine to medium sands with a trace of silt (USCS Soil Group `SP-SM') throughout the entire boring depth of 74 inches below the existing ground surface. Comparison of the soils to the Mansell Chart suggests the presence of a zone of aerated soils indicative of their occurring above the seasonal high water table extending to a depth approximately 40 inches below the existing ground surface. A measurement made 30 minutes after angering indicated a depth to standing water in the borehole of 69 inches below the existing ground surface. RFTS, PLLC Committed to Responsive Service Office: 910-458-1377 1305 3A Carolina Beach Ave N Carolina Beach. Nolh Carolina 28428 ?VU`tV.rftSp1lL.eoo1 Fax 910-458-5261 Tripp Engineering, P.C. RFTS Job No. 479-09 CLOSURE June 23, 2009 Page Two This seasonal high water estimate should be reviewed by appropriate regulatory authorities before finalizing the details of any civil design. Please find attached our field data. If you have any questions after reviewing this letter, please do not hesitate to contact us at your convenience. Sincerely, RFTS,PLLC David L. Winstead Field Operations Manager DLW/dlw Attachments Table 1 Munsell Soil Classifications Stormwater Pond Expansion Britthaven at Northchase Wilmington, North Carolina RPTS Job No. 479-09 Loc Soil Description Hue Value Chroma Depth Comments (in.) 1 Topsoil - - 0-6 - Very Dark Grayish Brown fine to 1 OYR 3 2 6-12 - medium SAND, trace of Silt Very Dark Gray fine to medium 5YR 3 1 12-18 - SAND, trace of Silt Black fine to medium SAND, 5YR 2.5 1 18-32 - trace of Silt Dark Brown fine to medium I OYR 3 3 3240 - SAND Black fine to Medium SAND, 5Y 2.5 2 4046 SHWT trace of Silt Dark Brown fine to medium 7.5YR 3 2 46-57 Slightly moist SAND Dark Yellowish Brown fine to IOYR 3 4 57-74 H20@69" medium SAND 10 I r0E[ LV Ciii AY i i s e.vi c�r,tn asl oca-5or.io=4isma .re^I sslwweoe mrt :In3nNllbu 1 m+v �a� imam—mm��\64A Gi��I�FJI �• w"., •••per. 7� W I axuiKt' ' i> J ceurt3f d J a 'r �. - IOL'K /el tMTn] Ce49M1] _ it ®TI?TIZ TI—I � I tlW..B 9^.R9 AF w>unpOY��,�;�yj_I�� I I I I I I I I I I I —I-__� I e ! ntllv�ra•I I r — I lnYll r suWa-- /. L® I wmrc :c .i� `fr Ierlr Ytl I ®I �4 ICI Lm1 U 1 Li L Li -L 2j 1 I._� �. •`° t I irk rir AiL.Ol.4tb+� __ /ram �' _ _ _ _ _ ^`• VV=c}2SI�� ``11 - Test location 1 Legend DRAWING PROVIDED BY TRIPP ENGINEERING, P.C. e APPROXIMATE TEST LOCATION R SEASONAL HIGH WATER ESTIMATE FIGURE 1 POND EXPANSION DRAWING NOT TO SCALE Residential Foundation Testing Services, PLLC BRITTHAVEN AT NORTHCHASE DATE: 6/23/09 Caro 8A Carolina Beach Ave N WILMINGTON, NORTH CAROLINA SKETCH: DLW Carolina Beach, North Carolina 28428 Residential Foundation Fax: 9-458-526177 Testing Services, PLLC JOB NO. 479-09 REVIEW: SDK Fax: 910 458-5261 Ohl r,%�� i ! 1rc `•^i yto„��r : �5,,�� .�j� ° t1 y, (/�tr�/n1 .: 1 .�, �5 !� �Y)"'�:% r ,,\t' i'��ti-.l yf."� r t`,aiA 1.GJ,r \C" W CI i + •' � 1!.\ ` � ,J` '.!' � >1r -•, 40� i (} v nn 0. r s � ? 1( 9p •df t t• / r \ Cx t y: �, 7 i4 1 . y �`t�.j rri t {✓`Pr Yy��.`t + 3°' ;�r��� 1��, r - l , j . ` �.. . ti } Kl I r s• �5/ 7 � f I !' i� �• r S r i.. A .! J.. r 1 'fit -i-✓r , r� . l; to .' J� ^�i GF �1J .�-4 1 F 1. (: t .t;w� ✓ 1� I. t<. ,''I A V t � �- '• Mh t� y AS J f. , , ^ �r tt !_jl,. J r.; „` � � /7'J,���"'!�' -h r�i� / s SS 1J 9 � j \•�'� 1. l i� '`.���1.v1 C .5�:✓' 1 t1��i %a .`. `. r��' � t .1 .� •i,rn �i�5.f%1/C�'^±ti 0 0.75 Mt 400 0 4000 Ft Map provided by QWEL 904,. _. FIRM � - FLOOD INSURANCE - - RATE MAY .PANEL 2'30 tfrun Maw "0 V 77T. VVE DATE T I Q 1 m im r;�%- North Carolina Elaine F. Marshall DEPARTMENT or- THE Secretary SECRETARY OF STATE PO Box 29622 Raleigh. NC 2762"622 (919)807-2400 Date: 10/25/2010 Click here to: View Document Filings I Sign Up for E-Notifications J Print apre-populated Annual Report Form I Annual Report Count I File an Annual Report I Corporation Names Name Name Type NC NEUSE RIVER LEGAL CORPORATION Business Corporation Information SOSID: 0501069 Status: Current -Active Effective Date: 7/23/1999 Dissolution Date: Annual Report Due Date: Citizenship: DOMESTIC State of Inc.: NC Duration: PERPETUAL Registered Agent Agent Name: LINDBERG, ERIK Office Address: 223 HWY 70 EAST GARNER NC 27529 Mailing Address: PO BOX 1010 GARNER NC 27529 Principal Office Office Address: 1435 HWY 258 NORTH KINSTON NC 28501 Mailing Address: 1435 HWY 258 NORTH KINSTON NC 28501 Officers Title: PRESIDENT Name: STEPHEN HILL Business Address: 3320 PAULS PATH ROAD LA GRANGE NC 28551 Title: SECRETARY Name: R HILL Business Address: 6275 NORTH OCEAN BLVD OCEAN BEACH FL 33435 Title: VICE PRESIDENT Name: ROBERT HILL North Carolina Elaine F. Marshall DEPARTMENT OF THE Secretary SECRETARYOFSTATE PO Box 29622 Raleigh, NC 27626-0622 (919)807-2000 Date: 10/29/2010 Click here to:. View Document Filings I Sign Up for E-Notifications '� Print apre-populated Annual Report Form I Annual Report Count I File an Annual Report I Corporation Names Name Name Type NC RHGC INVESTMENTS, LEGAL LLC Limited Liability Company Information SOSID: 0898351 Status: Current -Active Effective Date: 2/14/2007 Dissolution Date: Annual Report Due Date: Citizenship: DOMESTIC State of Inc.: NC Duration: PERPETUAL Registered Agent Agent Name: LANGDON, ROBERT E., II. Office Address: 223 HWY 70 EAST, SUITE 100 GARNER NC 27529 Mailing Address: 223 HWY 70 EAST, SUITE 100 GARNER NC 27529 Principal Office Office Address: 223 HWY 70 EAST, SUITE 100 GARNER NC 27529 Mailing Address: 223 HWY 70 EAST, SUITE 100 GARNER INC 27529 Officers Title: MANAGER Name: Business Address: 2510 TRAILS END KINSTON NC 28504 Title: MANAGER' - Name: Y Business Address: 6275 NORTH OCEAN BLVD� OCEAN RIDGE FL 33435 OCR Title: MANAGER / Name: �L Business Address: 3320 PAULS PATH ROAD Y� LA GRANGE NC 28551 Title: MANAGER Name: Business Address: 223 HWY 70 EAST,STE. 100 GARNER NC 27529 This website is provided to the public as a part of the Secretary of Stale Knowledge Base (SOSKB) system. Version: 191 HGCINVE 0411512010 10:29 AM LIMITED LIABILITY COMPANY ANNUAL REPORT NAME OF LIMITED LIABILITY COMPANY: RHGC INVESTMENTS, LLC STATE OF INCORPORATION: NC SECRETARY OF STATE L.L.C. 10 NUMBER: 0898351 NATURE OF BUSINESS: REAL ESTATE INVESTMENTS REGISTERED AGENT: ROBERT E. LANGDON, II SOSID: 0898351 Date Filed: 8/25/2010 4:42:00 PM Elaine F. Marshall North Carolina Secretary of State CA201012303552 FEDERAL EMPLOYER 10 NUMBE Privacy Redaction REGISTERED OFFICE MAILING ADDRESS: 223 HWY 70 EAST, SUITE 100 GARNER NC 27529 REGISTERED OFFICE STREET ADDRESS: 223 HWY 70 EAST, SUITE 100 GARNER NC 27529 WAKE SIGNATURE OF THE NEW REGISTERED AGENT: SIGNATURE CONSTITUTES CONSENT TO THE APPOINTMENT PRINCIPAL OFFICE TELEPHONE NUMBER: 919 - 6 62 -10 01 PRINCIPAL OFFICE MAILING ADDRESS: 223 HIGHWAY 70 EAST, SUITE 100 GARNER NC 27529 PRINCIPAL OFFICE STREET ADDRESS: 223 HIGHWAY 70 EAST, SUITE 100 GARNER NC 27529 MANAGERSIMEMBERSIORGAN IZERS: Name: ROBERT HILL, JR Title: MANAGER Name: ROBERT E . LANGDON II Title: MANAGER Name: STEPHEN B. HILL Title: MANAGER OCT 2 9 2010 Address: 7919 MASONBORO SOUND ROAD City: WILMINGTON State: NC Zip: 28409 Address: 223 HWY 70 EAST, SUITE 100 City: GARNER State: NC Zip: 27529 Address: 3320 PAULS PATH ROAD City: LA GRANGE State: NC zip 28551 CERTIFICATION OF ANNUAL REPORT MUST BE COMPLETED BY ALL LIMITED LIABILITY COMPANIES & ze4dz - - FORM MUST BE SIGNED BY A MANAGER/MEMBER DATE TYPE OR FqIINT NAME TYPE OR kINT TITLE ANNUAL REPORT FEE: $200 MAIL TO: Secretary of State 0 Corporations Division 0 Post Office Box 29525 0 Raleigh, NC 27626-0525 ®5k 201000110001306 FOR REIISiROTION REG15rFR OF DEEDS JENR[FEq N NRCNE ISN NE R HRNavER CGDNLY NC 2010 JAN 15 02 20 38 PM 8K 5462 PG NNW FEE S22 00 NC REV STAMP $314 00 INSI NI M000M NORTH CAROLINA GENERAL WARRANTY DEED Excise Tax 5314.00 (Purchase Price S157,000 UO) Recording Time, Book and Page Tax Map No Parcel Identifier No R 02620-004-001-000 Mad after recording Io0FPb'st'bifice Box 0 0 Gamer, NC 27529 This Instrument was prepared by Erik Lindberg, Adomey at Law Bntthaven, Inc THIS DEED made this // 6' day of January, by and between GRANTOR GRANTEE Neuse River Carpornuop 1435 Highway 258 North, Kinston, NC 28501 The designation Grantor and Grantee as used herein shall include said parties, their heirs, successors, and assigns, and shall include singular, plural, masculine, feminine or neuter as required by context WITNESSETH, that the Grantor, for a valuable conslderahon paid by the Grantee, the receipt of which is hereby acknowledged, has and by these presents does grant, bargain, sell and convey unto the Grantee In fee simple, all that certain lot or parcel of land and more particularly described as follows BEING ALL of Lot G, Section 5 of NORTHCHASE PARK OF CO)IKERCE as the same is shown on a map thereof recorded in Hap Book 33 at Page 389 of the New Hanover County Registry, reference to which is hereby made for a more particular description. TOGETHER WITH and subject to the Declaration of Covenants recorded in Book 1491 at Page 1558 in the New Hanover County Registry. All or a portion of the property heremabove described was acquired by Grantor by instrument recorded in Book 1807 'Page 1077 , New Hanover County Registry A map showing the above described property is recorded in Plat Book , Page , and referenced within this instrument 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 will warrant and defend the title against the lawful claims of all persons whomsoever except for the exceptions hereinafter stated Title to the property heremabove described Is subject to the following exceptions 0c, 2 9 ZmO IN WITNESS WHEREOF, the Grantor has hereunto set his hand and seal, or if corporate, has caused this instrument to be signed in its corporate name by its duly authorized officer(s), the day and year first above written. Brihhaven Inc (SEAL) (ENTITY M By awe (SEAL) Title President By (SEAL) (SEAL) NORTH CAROLINA LAA*.( COUNTY I, cerbfy that the following person(s) personally appeared before me this day, each acknowledging tome that he or shR voluntarily signed the foregoing document for the purpose stated therein and in the capacity indicated =d! .Li....f , Grantor(s) Witness my hand and official stamp or seal, this the //bR day of My Co�OnTcxppe -7- y 3 /d �B17m Notary Public Print Notary Name �&Ve/ 1iii H JJknst COUNTY I, certify that the following person(s) personally appeared before me this day, each acknowledging to me that he or she voluntarily signed the foregoing document for the purpose stated therein and in the capacity indicated .Grantor(s) Witness my hand and official stamp or seal, this the _day of My Commission Expires Notary Public Print Notary Name NORTH CAROLINA COUNTY I, certify that the following person(s) personally appeared before me this day, each acknowledging to me that he or she voluntarily signed the foregoing document for the purpose staled therein and in the capacity indicated ,Grantor(s) Witness my hand and official stamp or seal, this theday of My Commission Expires Notary Public Print Notary Name \RlnIIFn% JENNIFER H MACNEISH REGISTER OF DEEDS, NEW HANOVER 216 NORTH SECOND STREET WILMINGTON, NC 28401 ...........aa.. a..u... u u a+re.. a...u. a. a.aa.aa..w..u.a a aa.. uu.0 o a.u..a....... u..as .............aa.....x......... Filed For Registration, 0111512010 02.20:38 PM Book. RE 5462 Page 2440-2442 Document No.: 2010001306 3 PGS $22 00 NC REAL ESTATE EXCISE TAX: $314.00 Recorder JOHNSON, CAROLYN State of North Carolina, County of New Hanover PLEASE RETAIN YELLOW TRAILER PAGE WITH ORIGINAL DOCUMENT. *2010001306* 2010001306 CA201012303552 RHGCINVE 041151201010:29 AM LIMITED LIABILITY COMPANY ANNUAL REPORT NAME OF LIMITED LIABILITY COMPANY: RHGC INVESTMENTS, LLC STATE OF INCORPORATION: NC SECRETARY OF STATE L.L.C. ID NUMBER: 0898351 NATURE OF BUSINESS: REAL ESTATE INVESTMENTS REGISTERED AGENT: ROBERT E. LANGDON, II SOSID: 0898351 Date Filed: 8/25/2010 4:42:00 PM Elaine F. Marshall North Carolina Secretary of State CA201012303552 Privacy Redaction FEDERAL EMPLOYER ID NUMBE REGISTERED OFFICE MAILING ADDRESS: 223 HWY 70 EAST, SUITE 100 GARNER NC 27529 REGISTERED OFFICE STREET ADDRESS: 223 HWY 70 EAST, SUITE 100 GARNER NC 27529 WAKE SIGNATURE OF THE NEW REGISTERED AGENT: SIGNATURE CONSTITUTES CONSENT TO THE APPOINTMENT PRINCIPAL OFFICE TELEPHONE NUMBER: 919-662-1001 PRINCIPAL OFFICE MAILING ADDRESS: 223 HIGHWAY 70 EAST, SUITE 100 GARNER NC 27529 PRINCIPAL OFFICE STREET ADDRESS: 223 HIGHWAY 70 EAST, SUITE 100 GARNER NC 27529 MANAGERS/MEMBERS/ORGANIZERS: Name: ROBERT HILL, JR Address: 7919 MASONBORO SOUND ROAD Title: MANAGER City: WILMINGTON State: NC Zip: 28409 Name: ROBERT E . LANGDON II Address: 223 HWY 70 EAST, SUITE 100 Title: MANAGER City: GARNER State: NC Zip: 27529 Name: STEPHEN B. HILL Address: 3320 PAULS PATH ROAD Title: MANAGER City: LA GRANGE state: NC Zip 28551 CERTIFICATION OF ANNUAL REPORT MUST BE COMPLETED BY ALL LIMITED LIABILITY COMPANIES TI L�'11.yd�gr ts-0141 o FORM MUST BE SIGNE BY A MANAGER/MEMBER DATE / 066yt E, ma -el -aye TYPE OR INT NAME TYPE OR PRINT TITLE ANNUAL REPORT FEE: $200 MAIL TO: Secretary of State 0 Corporations Division 0 Post Office Box 29525 0 Raleigh, NC 27626-0526