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HomeMy WebLinkAbout20041214 Ver 1_COMPLETE FILE_20040726MEMORANDUM TO: John Dorney Non-Discharge Branch Regional Contact: J. Steenhuis WO Supervisor: R Shiver Date: SUBJECT: WETLAND STAFF REPORT AND RECOMMENDATIONS Facility Name United Developers of NC, LLC (Karl Stimpson) County Carteret Project Number 04 1214 County2 Recvd From DCM Region Wilmington Received Date 7/26/04 Recvd By Region Project Type condominiums Certificates Stream Stream Impacts (ft.) Permit Wetland Wetland Wetland Stream Class Acres Feet ?? M Type Type Impact Score Index Prim. Supp. Basin Req. Req. 01 x.91 (TANIA high F7 Q N F 20.36 I t SB F # 30 03.F F Mitigation Wetland MitigationType Type Acres Feet Is Wetland Rating Sheet Attached? Q Y O N Did you request more info? Q Y O N Have Project Changes/Conditions Been Discussed With Applicant? Q Y O N Is Mitigation required? Q Y O N Recommendation: Q Issue O Issue/fond O Deny Provided by Region: Latitude (ddmmss) Longitude (ddmmss) Comments: There are no wetland impacts proposed for this eject, no 401 certification is needed. JHS 08/03/04 cc: Regional Office Central Office Page Number 1 The attached application is being processed through the DENR Express Permitting Pilot program. As such failure to respond the Wilmington Regional Office by the listed due date will be construed as a no comment. The express permitting program Anae „n* allnw far PYtP.ncians during the comment period. t Y NCDENR North Carolina Department of Environment and Natural Resources Division of Coastal Management Michael F. Easley, Governor Charles S. Jones, Director William G. Ross Jr., Secretary Express Permit July 23, 2004 MEMORANDUM: Exp 0®121 TO: John R. Dorney Environmental Biological Supervisor Division of Water Quality FROM: SUBJECT: Applicant: Project Location: Proposed Project: Jason Dail DCM Express Permitting Coordinator WETLANDS / 401 CROUR JUL 2 6 2004 WATER QUALITY SECTION CAMA/DREDGE & FILL Permit Application Review Karl Stimpson (United Developers of NC, LLC) Carteret County, at 4401 Arendell Street (Hwy 70), adjacent to 70 West Marina and Peletier Creek, in the Town of Morehead City. Proposes to construct a seven-story condominium complex with associated parking, swimming pool, covered gazebo, and pool house. Please indicate below your agency's position or viewpoint on the proposed project and return this form by August 12, 2004. If you have any questions regarding the proposed project, please contact Jason Dail at (910) 395-3900. When appropriate, in-depth comments with supporting data is requested. REPLY: This agency has no objection to the project as proposed. This agency has no comment on the proposed project. This agency approves of the project only if the recommended changes are incorporated. See attached. This agency objects to the project for reasons described in the attached comments. SIGNED DATE 127 Cardinal Drive Ext., Wilmington, North Carolina 28405-3845 Phone: 910-395-39001 FAX: 910-350-20041 Internet: www.nccoastalmanagement.net An Equal opportunity \ Affirmative Action Employer -50% Recycled 110% Post Consumer Paper DIVISION OF COASTAL MANAGEMENT FIELD INVESTIGATION REPORT 1. APPLICANT'S NAME: Karl Stimpson, United Developers of NC, LLC c/o 70 West Marina, LLC 2. LOCATION OF PROJECT SITE: Project site is located at 4401 Arendell Street (Hwy70), adjacent to 70 West Marina boat basin and Peletier Creek, in Morehead City, Carteret County Photo Index - 2000: 41-522, I,15-9 1995: 41-514, P,Q 6-9 1989: Not Available State Plane Coordinates - X: 813167 Y: 110932 Rover File: 0-071514A 3. INVESTIGATION TYPE: CAMA 4. INVESTIGATIVE PROCEDURE: Dates of Site Visit - 7/15/2004 Was Applicant Present - No 5. PROCESSING PROCEDURE: Application Received - 7/8/2004, completed 7/22/2004 Office - Wilmington 6. SITE DESCRIPTION: (A) Local Land Use Plan - Town of Morehead City Land Classification From LUP - Developed (B) AEC(s) Involved: ES . r - (C) Water Dependent: No (D) Intended Use: Residential Condominiums (E) Wastewater Treatment: Existing - Municipal Planned -None (F) Type of Structures: Existing- Marina, office, wet slips and dry stack storage Planned - Seven (7) story condominium complex with associated parking, swimming pool, covered gazebo and pool building (G) Estimated Rate of Erosion: N/A Source- N/A 7. HABITAT DESCRIPTION: [AREA] (A) Vegetated Wetlands Coastal (B) Non-Vegetated Wetlands (C) Other - High ground Disturbed 3.91 acres (D) Total Area Disturbed: 170,320 sq. ft. (3.91 acres) (E) Primary Nursery Area: No (F) Water Classification: SB Open: No 8. PROJECT SUMMARY: The applicant proposes to construct a seven-story condominium complex with associated parking, swimming pool, covered gazebo and pool house. Karl Stimpson Page Two 9. PROJECT DESCRIPTION Stroud Engineering, P.A., representing Karl Stimpson, Member of United Developers of NC, LLC, has requested that the attached application be processed under the Express Permit Review Pilot Program. The applicant's project is located at 4401 Arendell Street (Hwy 70), approximately 1.5 miles east of the intersection of Highway 24 and Highway 70, adjacent to Peletier Creek, in Morehead City, Carteret County. To find the property, take Highway 70 east from Kinston to Morehead City. Travel east, approximately 1.5 to 2 miles, from the intersection of Highway 24 and Highway 70. The property will be located along the southern side of the road, adjacent to Peletier Creek and Arendell Street (HWY 70). The subject property is bordered by both residential and commercial properties. The subject property currently operates as a marina (70 West Marina) and has historically been used as a marina facility, providing both dry and wet storage for recreational and commercial boaters. The property currently contains a workshop, gravel driveway, travel lift, bulkhead, boardwalk, above ground storage tanks (AST's), boat wash down area, dry storage building and multiple finger docks/slips (52). The property contains no "404" Type wetlands or coastal wetlands. High ground vegetation at the site consists primarily of Wax Myrtles (Merica cerifera) and Red Cedars (Juniperus virginiana). Elevation at the site ranges from approximately 4' to 12' above Mean Sea Level. According to Carteret County, the CAMA Land Use Classification for the area within, and around the project site is Developed. Peletier Creek/70 West boat basin borders the property to the south and commercial and residential properties border the site to the north, east and west. The waters of Peletier Creek, adjacent to the project site, are classified as SB by the North Carolina Division of Water Quality. The area is NOT designated as a Primary Nursery Area (PNA) by the N.C. Division of Marine Fisheries. According to the Division of Environmental Health, Shellfish Sanitation Section, the area located within the Peletier Creek/marina basin is CLOSED to the harvesting of shellfish. PROPOSED PROJECT The applicant proposes to redevelop the 3.91 acre tract by removing the two (2) existing metal buildings and AST's, and constructing a seven-story condominium complex with associated driveways, parking areas and utilities. The applicant is also proposing to construct a swimming pool, gazebo and pool house. Development would include grading, disturbing and/or filling the entire 3.91 acre tract for initial road construction and lot preparation. Tha applicant states that fill material brought to the site would be clean and free of any contaminants and would be provided by an upland source. The fill would also be compatible with the native sands. The seven-story condominium complex would provide approximately 63 units for single family/multifamily use. According to the application, the density of proposed development would equal 16.1 units/acre. Access to the complex would be provided by the construction of two (2) entrance/exit drives, one located along Arendell Street and one located off of Lake Ave. (bordering road west of property). The proposed asphalt drives would be located north and west of the centralized parking areas. As proposed, there would be a total of one hundred fifty (150) parking spaces associated with the condominium development. The parking areas would be split in half (one parking lot in the northwest corner and one along the southern most bulkhead) to accommodate both the condominiums as well as the marina. The seven-story condominium complex would be located in the southwest corner of the property. As proposed, the building/condos, swimming pool, pool house and covered gazebo, would be located outside of the 30' buffer, but within the 75' Area of Environmental Concern (AEC). The southern most portion of the property would contain the swimming pool (54' x 35'), pool house (10' x 12') and covered gazebo (24' x 16'). Access to the swimming pool, pool house and covered gazebo, would be provided by pedestrian access (concrete sidewalks and wooden boardwalks) from the condos and parking areas. Karl Stimpson Page Three The applicant has also proposed the construction of an 8' wide x 362' long boardwalk around the existing bulkhead, specifically along the peninsula, located along the south west corner of the property. The boardwalk would be constructed of wood and would be located atop the asphalt parking areas. The project site currently contains a large gravel driveway, parking area, concrete wash down station and workshop. When combined, these structures total approximately 25,082 square feet, or 74.10% impervious coverage within the 30' buffer and approximately 51,204 square feet, or 52.15% of impervious coverage within the 75'AEC. The applicant has indicated that the newly proposed condo complex and associated amenities, would decrease the amount of impervious coverage in both the 75' AEC and 30' buffer. According to the site drawings, overall reduction within the 75' AEC would be 14.23% and reduction within the 30' buffer would be 42.33%. As proposed, a portion of the driveways, parking areas, pool decking and pedestrian walkways would be located within the 30' buffer, however no new impervious surfaces would be created during the construction of the facility. The existing gravel drives and parking areas would be replaced with asphalt and the existing walkways and decking would be replaced with concrete. In addition to the driveways, parking areas and walkways, the applicant also proposes to install three of the five sand filter systems within the 30' buffer. Sand filter systems 3,4 and 5 would be located between the bulkhead and proposed parking areas along the southern property line, while sand filters 1 and 2 would located in the center of the parking area, in the north western corner of the property. These filtration systems were approved as part of the high-density stormwater application submitted on 7/9/2004. The applicant has indicated that municipal water and sewer would be provided by Morehead City. The applicant submitted an Express High-Density Stormwater Permit application to the North Carolina Division of Water Quality. The Express Stormwater permit was issued on 7/16/2004, under project number SW8040706. The applicant has also submitted, and obtained approval of a Sedimentation and Erosion Control Plan (SECP) from the Division of Land Quality. The plan was approved on 7/15/2004, and was issued under Carte-2005-012. 10. ANTICIPATED IMPACTS: The initial grading of the property would result in the disturbance of approximately 3.91 acres of high ground. The proposed building/condos, driveways, parking areas, pedestrian walkways, swimming pool, pool house and gazebo, would result in the creation of approximately 100,761 square feet of impervious surface. The applicant has received an Express State Stormwater Permit with the Division of Water Quality (Stormwater permit # SW8040706). Under the high-density option, the Stormwater Permit restricts the total maximum built-upon area of the subdivision to 100,761 sq. ft., or 59.12% coverage for the entire tract. Submitted by: Jason Dail Date: July 23, 2004 Office: Wilmington Recommendations for State Permit - Karl Stimpson, United Developers of NC, LLC It is recommended that a permit be issued subject to the following conditions: In order to protect water quality, runoff from the construction must not visibly increase the amount of suspended sediments in adjacent waters. $ The Division of Water Quality is reviewing the application for this project under stormwater management rules established and enforced by the Environmental Management Commission. The applicant has received a High- Density State Stormwater Permit (SW8040706). Any violation of the permit approved by the DWQ will be considered a violation of this CAMA permit. Appropriate sedimentation and erosion control devices, measures or structures must be implemented to ensure that eroded materials do not enter adjacent wetlands, watercourses and property (e.g. silt fence, diversion swales or berms, sand fence, etc.). A ground cover sufficient to restrain erosion shall be provided within the shorter of 15 working or 30 calendar days of completion of any phase of grading on cut or filled slopes. NOTE: This permit does not eliminate the need to obtain any additional state, federal or local permits, approvals or authorizations that may be required. NOTE: Future development of the permittee's property may require a modification of this permit. Contact a representative of the Division at (910) 395-3900 prior to the commencement of any such activity for this determination. The permittee is further advised that many non-water dependent activities are not authorized within 30 feet of the normal high water level. NOTE: The permittee and/or his contractor is urged to meet with a representative of the Division prior to project initiation. Form DCM-MP-1 APPLICATION, (To be completed by all applicants) b. City, town, community or landmark d Cr` h.1 M ode inz e, 1. APPLICANT -- ??1?},•Psor a. Landowner: LM kd Deveiu(xrs of NC, LLC Name 'lo -10 W e SA Ma.r i w, k U- Address •p'5 btX 2(51 City P4 4+b"u i1 State Zip • 7th 0 Day Phone (2520 721r-`S1? Fax (ZSZ) 7Z?;- `-123 b. Authorized Agent: Name ;??n;t.?? E?vWince.????; ?P.X Address 'it I -A 1-6,t 21 City tVk o Y,_4vJ C .i State Ki Zips S Day Phone 2S Z-- ZN I --7 N 71 Fax Z52 - 2-14 1 - Li 0J,, c. Project name (if any) Rzt V Liu 1'e'i d C:, NOTE: Permit wiU be issued in name of landowner(s), and/or project name. 2. LOCATION OF PROPOSED PROJECT a. County 0 k V c. Str?exx address or second road number d. Is proposed wor w'thin city limits or planning jurisdiction? Yes No e. Name of body of water nearest proj (e.g. river, creek, sound, bay) Pe I , h e V CVI 3. DESCRIPTION AND PLANNED USE OF PROPOSED PROJECT a. List all development activities you propose (e.g. building a home, motel, marina, bulkhead, pier, and excavation and/or filling activities. 1 ?? ru ?`? ? ?t(t `? rp C° K I ama- Cx ?1 s•4rL<c ,? ? rc ? ? c + b. Is the proposed activity maintenance of an eicisting project, new work, or both? NtW LL; & Y K. c. Will the oject be for public, private or commercial use? 7" v A d. Give a brief description of purpose, use, methods of construction and daily operations of proposed project. If more space is needed, please attach additional pages. C r1S?ltitCj fyli7 Pty 601 uirnlw' BY: Revised 03/95 Form DCM-MP-1 4. LAND AND WATER CHARACTERISTICS a. Size of entire tract 3.9 1 A-i b. Size of individual lot(s) M 1p c. Approximate elevation of trait above MHW or NWL q, Q I ;?.O d. Soil type(s) and textures of tract `XICL h i'Cc K .( KX_ Sa I'- e. Vegetation on tract rs21 e?nlsSr,? are f. Man-made features now on tract ravel ?u., y kit tt,m i ?1?ar«s J J g. What is the CAMA Land Use Plan land classification of the site? (Consult the local laid use plan.) Conservation ?- Developed Rural Transitional Community Other h. How is the tract zoned by local government? 'YP L Is the proposed project consistent with the applicable zoning? --)C- Yes No (Attach zoning compliance certificate, if applicable) Has a professional archaeological assessment been done for the tract? Yes _ , No If yes, by whom?. k. Is the project located in a National Registered Historic District or does it involve a National Register listed or eligible property? Yes X No 1. Are there wetlands on the site? Yes )( No Coastal (marsh) Other If yes, has a delineation been conducted? (Anach dommentadon, if availabk) m. Describe existi g wastewater treatTnent facilities. n.. Describe location and type of discharges to waters of the state. (For example, surface runoff, sanitary wastewater, industrial/commercial effluent, "wash down" and residential discharges.) X tsfi' ?v wt wo.V r S.J a?v?v L-ul OeAJ A Sur o. Describe existing drinking water sup ly source. It t ,o IV I, V CiU.... 1t_ 5. ADDITIONAL INFORMATION In addition to the completed application form, the following items must be submitted: • A copy of the deed (with state application only) or other instrument under which the applicant claims title to the affected properties. If the applicant is not claiming to be the owner of said property, then forward a copy of the deed or other instrument under which the owner claims title, plus written permission from the owner to carry out the project. • An accurate, dated work plat (including plan view and cross-sectional drawings) drawn to scale in black ink on an 8 1/2 by 11" white paper. (Refer to Coastal Resources Commission Rule 7J.0203 for a detailed description.) Please note that original drawings are preferred and only high quality copies will be accepted. Blue-line prints or other larger plats are acceptable only if an adequate number of quality copies are provided by applicant. (Contact the U.S. Army Corps of Engineers regarding that agency's use of larger drawings.) A site or location map is a part of plat requirements and it must be sufficiently detailed to guide agency personnel unfamiliar with the area to the Form ACM-MP-1 site. Include highway or secondary road (SR) numbers, landmarks, and the like. • A Stormwater Certification, if one is necessary. • A list of the names and complete addresses of the adjacent waterfront (riparian) landowners and signed return receipts as proof that such owners have received a copy of the application and plats by certified mail. Such landowners must be advised that they have 30 days in which to submit comments on the proposed project to the Division of Coastal Management. Upon signing this form, the applicant further certifies that such notice has been provided. Name " r " J " . Address ' r t Z Phone ?icy r;3 9? Name Address Phone Name Address Phone • A list of previous state or federal permits issued for work on the project tract. Include permit numbers, permittee, and issuing dates. ?, (l ViM N1 ci • A check for $250 made payable to the Department of Environment, Health, and Natural Resources (DEHNR) to cover the costs of processing the application. • A signed AEC hazard notice for projects in oceanfront and inlet areas. • A statement of compliance with the N.C. Environmental Policy Ad (N.C.G.S. 113A - 1 to 10) If the project involves the expenditure of public funds or use of public land's, attach a statement documenting compliance with the North Carolina Environmental. Policy Act. 6. CERTIFICATION AND PERMISSION TO ENTER ON LAND I understand that any permit issued in response to this application will allow only the development described in the application. The project will be subject to conditions and restrictions contained in the permit. I certify that to the best of my knowledge, the proposed activity complies with the State of North Carolina's approved Coastal Management Program and will be conducted in a manner consistent with such program. I certify that I am authorized to grant, and do in fact, grant permission to representatives of state and federal " review agencies to enter on the aforementioned lands in connection with evaluating information related to this permit application and follow-up monitoring of the project. 1 further certify that the information provided in this application is truthful to the best of my knowledge. i 7 This is the day of 19E?-. Print Name ??? r I A D ?? Signature Landowner or Authorized Agent Please indicate attachments pertaining to your proposed project. DCM MP-2 Excavation and Fill Information DCM MP-3 Upland Development DCM MP4 Structures Information DCM MP-5 Bridges and Culverts DCM MP-6 Marina Development NOTE. Please sign and date each attachment in the space provided at the bottom of each form. Form DCM-MP-2 EXCAVATION AND FILL (Except bridges and culverts) Attach this form to joint Application for CAMA Major Permit, Form DCM-MP-I. Be sure to complete all other sections of the Joint Application that relate to this proposed project. Describe below the purpose of proposed excavation or fill activities. All values to be given in feet. Average F W Existing "ed Access channel (MLW) or (NWL) Canal Boat basin Boat ramp Rock groin Rock breakwater Other (Excluding shomline stabilization) ,, , ?c? Pty 1. EXCAVATION N I N a. Amount of material to be excavated from below MHW or NWL in cubic yards b. Type of material to be excavated c. Does the area to be excavated include coastal wetlands (marsh), submerged aquatic vegetation (SAVs) or other wetlands? Yes No d. Highground excavation in cubic yards 2. DISPOSAL OF EXCAVATED MATERIAL N l ?- a. Location of disposal area b. Dimensions of disposal area c. Do you claim title to disposal area? Yes No If no, attach a letter granting permission from the owner. d. Will a disposal area be available for future maintenance? Yes No If yes, where? Revised 03195 Form DCM-MP-2 e. Does the disposal area include any coastal wetlands (marsh), SAVs or other wetlands? Yes No f. Does the disposal include any area in the water? Yes No 3. SHORELINE STABILIZATION N 1 ?- a. Type of shoreline stabilization Bulkhead Riprap b. Length c. Average distance waterward of MHW or NWL d. Maximum distance waterward of MHW or NWL e. Shoreline erosion during preceding 12 months (Source of inforniation) f. Type of bulkhead or riprap material g. Amount of fill in cubic yards to be placed below water level (1) Riprap (2) Bulkhead backfill h. Type of fill material i. Source of fill material 4. OTHER FILL ACTIVITIES (Excluding Shoreline Stabilization) a. Will fill material be brought to site? - Yes No If Yes, (1) Amount of material to be placed in the water 0 (2) Dimensi us of fill area _ 0 (3) Purpose of fill 41120 w 47, V, r b. Will fill material be placed in coastal wetlands (marsh), SAVs !?? erwetlands? Yes No If yes, (1) Dimensions of fill area (2) Purpose of fill 5. GENERAL a. How will excavated or fill material be kept on site and e o t n controlled? llzi b. What type of construction equipment will be used (for example, dragline, backhoe, or hydraulic dredge)?f II ff (lump fVt (r IC S `? !?Q u ? Ul/tc? ?V? J c. Will wetlands be cr5ssed in transporting equipment to project site? Yes _?L_ No If yes, explain steps that will be taken-to. 10-s?Q environmental impacts. \t Ap licant or .a/P4?{r 7tW c oject. signature ?l -7 /1 Date Revised 03/95 Form DCM-MP-3 UPLAND DEVELOPMENT (Construction and/or land disturbing activities) Attach this form to Joint Application for CAMA Major Permit, Form DCM-MP-1 Be sure to complete all other sections of the Joint Application that relate to this proposed project. a. Type and number of buildings, facilities, units or structures proposed 7-sbru L'x.t.iU'rtq b. Number of lots or parcels h. Projects that require a CAMA Major Development Permit may also require a Stormwater Certification. Has a site development plan been submitted to the Division of Environmental Management for review? ' Yes No If yes, date submitted 17 k (o i. Describe proposed method of sewage disposal. NfA.U S'r i p'6 C?'tt V-6 V_ c. Density (give the number of residential. units and the units per acre) I6-( i c c:r d. Size of area to be graded, filled or disturbed including roads, ditches, etc. 3-`1 't AC If the proposed project will disturb more than one acre of land, the Division of Land Resources must receive an erosion and sedimentation control plan at least 30 days before land disturbing activity begins. If applicable, has a sedimentation and erosion control plan been submitted to the Division of Land Resources? _ /- Yes No If yes, date submitted _ 1 `i D `i j.. Have the facilities described in Item i. above received state or local approval? (?ics (Aach appropriate docununradon) k. Describe location and type of proposed discharges to waters of the state (for example, surface runoff, sanitary wastewater, industrial /commercial effluent, "wash own" and rersiidential discharges).. W a, f d ,t s +1a rz?4e •-Wt u kxA L end 1. Describe proposed drinking water supply source (e.g. well, community, public system, etc.) ?QU IQ lfC Su -k }v? in. Will water be impounded? Yes _ No If ves_ how manv acres? f. List the materials (such as marl, paver stone, asphalt, or con rr•ete) to be used for paved surfaces. n ' ter D ? ,_yL{ rv l'1.t( ? . Q n1to I§t .? g. Give the percentage of the tract within 75 feet of MHW or NWL, or within 575 feet in the case of an Outstanding Resource Water, to be covered by impervious and/or built-upon surfaces, such as pavement, buildings, rooftops, or to be used for vehicular driveways or parking. If the project is a oceanfront development, when was the lot(s) platted and recorded? (N / /? I-kv6V- S'IJL Applicant or Project Name Signature Date 4 4 l , Cp\ ?,? \ \ ? I/' ~• it .A? `?. ti kT? .\` 1401 a` ??? s ?If•?. ?. ie i '1 • a b 1 7 / .i :./ / _a j / IC r '7 DATE: G/27/ SCALE: 1°= 100' SHEET 1 OF EXPRESS SITE PLAN CLIENT: UNITED DEVELOPERS OF NC, LLC S _SI'ROUD FWGIN131MING. C/O KARL STIMPSON 151A HIGHWAY 25 _,_•. HAR60RSiDE ADDRESS: 4401 ARENOELL STREET W-1Q )ICAD CITY. N.C. 2C5?7 MOREHEAD CITY. NC 24557 1252) 247-7479 MOREHEAD TOWNSHIP. CARTERET CO.. PHONE: (252) 726-5171 NORTH CAROLINA -•'• • vn w •. ` 5 y o r`te` / .3 / ? ? ? O uh -7 DATE: 6/23/04 1 60' SHEET 2. OF 3 EXPRESS SITE PLAN CLIENT: UNITED DEVELOPERS OF NC. LLC STROUD EN01NEFAIING,P.A. C/O KARL STIMPSON "15tH IIIC4lW Y 24 HARBORSIDE ADDRESS: 4401 ARENDELL STREET MOREHEAD CITY• N.C. 28557 MOREHEAD CITY. NC 28557 (252) 247-7479 IEAD TOWNSHIP. CARTERET CO.. PHONE: (252) 726-5171 NORTH CAROLINA 0 0 _- l /d yt r?R lhC ._k? .••h ,- 1?r ! h Q)?/ o / g' i l u e E: 1"= 60' EXPRESS SITE PLAN CLIENT: UNITED DEVELOPERS OF NC. LLC C/O KARL STIMPSON HARBORSIDE ADDRESS: M1401 OREHEADNDItY. STREET 0557 IEHEAD TOWNSHIP- CARTERET CO.. PHONE: (252) 726-5171 NORTH CAROLINA DATE, 6/29/04 SHEET 3 OF 3 r? srROUA ENi,lNT ERIN9, ir.A- 151A HIGHWAY 24 '---- MOREHEAD CITY. N.C. 20557 12521 24T-7479 Narrative Erosion and Sedimentation Control Plan Stormwater Management Plan CAMA Major HARBORSIDE July 7, 2004 Owner: United Developers of North Carolina, LLC c/o Karl Stimpson, Member P.O. Box 26 Pfafftown, NC 27040 (252) 726-5171 Engineer: Stroud Engineering, P.A. 151-A N.C. Hwy.24 Morehead City, North Carolina 28557 (252) 247-7479 A. Description of Project 1. Type of Development The Harborside project is located on a 3.91 acre tract and is being proposed as a 63-unit condominium project located approximately 1.5 miles east .of the intersection of Highways 70 and 24 on Highway 70E. We are proposing to utilize sand filters as the "BMP" with stormwater lift stations pumping the water to manifolds (flow spreader) which discharge to the required 30' vegetative swales. This project is for high ground development and no wetlands exist on site. 2. Earth Disturbing Activities a. Excavation and grading for the installation of the drive and parking area, drainage, and utility improvements, and stormwater treatment systems. 3. Drainage The site presently drains south to Peletier Creek, Class "0", by sheet flow and a single 12" metal pipe direct discharge though the existing bulkhead. B. Erosion and Sedimentation Control Measures The following measures are proposed for the site. If it becomes evident that additional erosion and sedimentation control measures are needed, they shall be installed immediately. It is intended that all grading and excavation activities within a certain area will be protected as soon as that activity is complete. 1. Sediment Fence - Sediment fence will be utilized as necessary in locations as shown on plans or as deemed necessary by the engineer to insure that off-site sedimentation in controlled. 2. Sediment Storage- Stormwater sand filter systems proposed for the site will serve as sediment storage areas during the construction phase of development. 3. Seeding - All disturbed areas will be seeded within 14 days following construction in accordance with the seeding schedule shown on plans. 4. Stone Construction Entrance - The present means of ingress/egress from this property are currently paved. Once asphalt is removed a stone construction entrance will be required. C. Construction Sequence 1. Install stone construction entrance. 2. Install silt fence at specified locations. 3. Demolition existing structures and gravel drives within new building area. 4. Install deep building foundation and under slab utilities. 5. Construct new retaining wall and begin vertical building construction. 6. Rough grade site and construct sand filter cells (utilize sand filters for sediment storage during construction). 7. Install underground storm drainage, lift stations and forcemains, water and sewer 8. Install curb and gutter, stone base for new parking lot. Clean out sand filters and place into permanent operation. 9. Install landscaping as shown on sheet CE3 and seed remaining disturbed areas. 10. Complete exterior building construction and construct pool. D. Design Assumptions 1. Design storm is ten years. 2. The rational method was used for design. 3. The sand filters are based on design criteria found in the NCDENR-Division of Water Quality "Best Management Practices" manual. E. Sand Filter System Operation and Maintenance 1. Depending on the types of activities occurring within the drainage area, most sand filters will show a decreased capacity for filtration after a few years. At least once a year, each filter must be inspected after a 1" design storm event to determine if the filter bed is passing the runoff within 24 hours. 2. If the filter is not passing the runoff completely within 24 hours, the first 2"-3" of discolored sand must be removed and replaced with new sand. The removed sand must be dewatered and disposed of properly. At the same time that maintenance is performed on the sand chamber, the sediment chamber should be pumped and cleaned. The removed sediment should be dewatered and disposed of properly. 4. At least once every quarter, check that the orifice is clear. F. Coastal Stormwater Regulations The North Carolina Division of Environmental Management implemented coastal stormwater regulations in coastal counties on January 1, 1988. These regulations are detailed in 15 NCAC 2H.1000 Stormwater Runoff Disposal. These rules allow for a development to be considered under various options. This project is submitted for approval consideration under Section .1003(d)(2). ?IIIIIIIIIf CAP SS74 SEAL 13343 oop O •? I STROUD ENGINEERING, P.A. Hestron Plaza Two 151 A Hwy. 24 MOREHEAD CITY, NC 28557 (252) 247-7479 Z JOB PM I U 3 6 dA9-R'0 RSt W q SHEET NO. I OF CALCULATED Gy DATE 2& 164 _ CHECKED DATE SCALE ,`11111 1j1???I CAROB .?. • FESS%? ??' ?'• o° • w SEAL 13343 0 /fi?'?NGtNE?:e' -FP-4c-r AREA = r'7 0 Li '15' SF- C 3 •`l t AC) •?'• 11j1111111111111 DP.A-t W5 TD t>b" W ATV2s -? pet,l= -t FR C 9_1E E K P2uPos&-D ttAPIF-RvIOUs ARuA IIt.Dk6tS MAi N ',LD41 Zo Li 0 (::> SF PAV t LUL D tit = Lit ) 2 SF FbOt? aLoc-L = 12.0 sr FAdZV-tP[c1 /D2.Iv es- (08571 . SF s tnt 4L KS = 6 683 sF t'ooL &PRO N.c y 6 y g s F TbTAU In07b I s? l $u tc.r V PbtJ - '59.12 `/. DRAMA,kC,1e-A2P4 = '1491115 SF /• TIMP. W /IN DA = 61-156-1- STROUD ENGINEERING, P.A. Hestron Plaza Two 151 A Hwy. 24 MOREHEAD CITY, NC 28557 (252) 247-7479 S M w?4?I? P1 P- G?1 G= ©• S 7 23 L Y'/i,r JOBS SHEET NO. _? OF CALCULATED B N ( DATE /6 CHECKED BY DATE 0 SCALE ???111111ff1ff CAz? ••FeS3/' ;?? '•, ? 1 SEAL o 13343 GIN ?Q. ?. 0.1CU 1 $1* `Z Tg 4* DA = 5310'B '5,F Qto = O Q,?? 23?( 1.23 = 7 1 1 &FS 16° PV C. Pl pu- F-Lc,W i 0 cq ruu- (2) w1 Y1= 0• o 1' y F L-'F S #Z?7:?>#y SAM Q to r-Rco-A a2# 2 ? JR?JN Qio = °711 (-,F S I b,, KCP Pi PE ?= LO\A) I N t7 FU LL, @ 1:1L1 `/• v ? a = 0.013 (? X 3.7 5 Cr S T RA 1? -=, -'.B ##15 6AME Q I o FP-01A _'D1t2 `7M_:!?#t4 a ?o = 7• I 1 C1=S I$" RCS' PIPE FLowI1LCI FULL ®I.o/w/ h- ?•pl3 Q = ib-7Z C-FS -j pmt -a> 1B ivcg p A 22005 SF C d• 5D 55'4<f> G1 to 0 5 = 2. 2 GF S i5'' PVL PIPE FL LAJJN67 FvLL. d 0•3'/ w? n =o.v I JR#5 -T3#•6 -PA - X18 82>7 s fr ( 2,26 14c) 010 = Q f? ?7 23?C 2.2b ?i) :_/3 /2 cps 214" PVC- PI PC Flow/ Al C7 FUL'Ll & O' V W1 {'L = 0- o J-Pi # :6 -? LI FrsT-A no td DA= 1 IUZ22 SF (z, s3 AC) _ ?-? n? C?•'z3?(o.?? r 14.63 4ff?S a.:=- `1, 6 U GFS 0 = l6-Il cFs STROUD ENGINEERING, P.A. Hestron Plaza Two 151 A Hwy. 24 MOREHEAD CITY, NC 28557 (252) 247-7479 Stormwater Sand Filter System 1 Drainage Area = 31201 sf 0.72 acre SHEET NO. _ CALCULATED CHECKED BY SCALE OF- DATE DATE ee?e to elll,ll? '?04 / 00, S ,r a 1v?-n4 ?:3 ???6`Iyiji'u?9 ?ee `? Sediment/Sand, Filter..Chamber.Design. Surface Area Req'd 36-`ft2 pe"r acre of drainage area 257.86 sf Volume Req'd.= 540 ft3 per acre of drainage area 386.79 cf Volume Design: Chamber Length = 130 ft Chamber Width = 2 ft Storage Depth = 1.5 ft Storage Volume = 390 ft3 Surface Area Prov'd 260.00 W Volume Prov'd 390.00 ft3 Collection Line Sizing Calculation Assume average sand infiltration rate = 0.04 gpm/ft2 Surface Area of Sand Filter= , . 260.00 sf Req'd flowrate of outlet pipe 10.4 gpm 0.023 cfs Diamteter Outlet Req'd = 1.87 in. "(assuming slope is 0.5%) STROUD ENGINEERING, P.A. .,oe 1 SIUr Hestron Plaza Two SHEET NO. OFn ...151 A Hwy.:24: CALCULATED BY QNT DATE MOREHEAD CITY NC 28557 CHECKEDBY DATE_ (252)'247-7479 SCALE r• a 12'11--._ Stormwater Sand Filter System 2 Drainage Area = 53720 sf 1.23 acre Sediment/Sand Filter Chamber Design Surface Area Req'd = 360 ft2 per acre of drainage area 443.97 sf Design: SYSTEM 2A Chamber Length = 48 ft Chamber Width = 1.5 ft Storage Depth = 1.5 ft Storage Volume = 108 ft3 SYSTEM 2B Chamber Length = 39 ft Chamber Width = 3 ft Storage Depth = 1.5 ft Storage Volume = 175.5 fe SYSTEM 2C Chamber Length = 102 ft Chamber Width = 3 ft Storage Depth = 1.5 ft Storage Volume = 459 fe Surface Area Prov'd 495 fe TOTAL Volume Prov'd 742.50 ft3 Collection Line Sizing Calculat ion Assume average sand infiltration rate = 0.04 gpm/ft2 Surface Area of Sand Filter = 495.00 sf Req'd flowrate of outlet pipe= 19.8 gpm 0.044 cfs Diamteter Outlet Req'd = 2.38 in. "(assuming slope is 0.5%) ? 0Q? ........ Z? ?i SEAL ` 13343 i • IN .0 tC13 `,,?? STROUD ENGINEERING, P.A. Hestron Plaza Two 151 A Hwy. 24 MOREHEAD CITY, NC 28557 (252) 247-7479 Stormwater Sand Filter System 3 Drainage Area = 22005 sf 0.51 acre JOB PM 143(6 MP-Bt7eg1DF SHEET NO. S OF II CALCULATED BY T DATE b CHECKED BY 14 1Q'A DATE D SCALE .NIIIIffe._ .•`' R ,'r 00 C A 9z .10, .446'. J. 10, $'o •?; JFGSS/p?eeq . r ° SEAL N ` 13343 z 90 :• F P:' <v •• NGINSL? 2 , •.e ee.'•e ?? cif ?o De C••• ??fff1111l111?,• Sediment/Sand Filter Chamber Design Surface Area Req'd = 360 ft2 per acre of drainage area 181.86 sf Volume Req'd = 540 ft3 per acre of drainage area 272.79 cf Volume Design: Chamber Length = 130 ft Chamber Width = 1.5 ft Storage Depth = 1.5 ft Storage Volume = 292.5 ft3 Surface Area Prov'd 195 fe Volume Prov'd 292.50 ft3 Collection Line Sizing Calculation Assume average sand infiltration rate = 0.04 gpm/fe Surface Area of Sand Filter = 195.00 sf Req'd flowrate of outlet pipe = 7.8 gpm 0.017 cfs Diamteter Outlet Req'd = 1.68 in. *(assuming slope is 0.5%0) STROUD ENGINEERING, P.A. Hestron Plaza Two 151 A Hwy. 24 MOREHEAD CITY, NC 28557 (252) 247-7479 Stormwater Sand Filter System 4 Drainage Area = 23126 sf 0.53 acre Sediment/Sand Filter Chamber Design Surface Area Req'd = 360 ft2 per acre of drainage area 191.12 sf Volume Req'd = 540 ft3 per acre of drainage area 286.69 cf Volume Design: Chamber Length = 130 ft Chamber Width = 1.5 ft Storage Depth = 1.5 ft Storage Volume = 292.5 ft3 Surface Area Prov'd 195 ft2 Volume Prov'd 292.50 ft3 Collection Line Sizing Calculat ion Assume average sand infiltration rate = 0.04 gpm/ft2 Surface Area of Sand Filter = 195.00 sf Req'd flowrate of outlet pipe = 7.8 gpm 0.017 cfs Diamteter Outlet Req'd = 1.68 in. *(assuming slope is 0.5%) joB PMIU31 1-AQ1;DRSt SHEET NO. Le OF ! CALCULATED B DATE -11 L CHECKED BY DATE 0 SCALE R :C to (` A .. ?s_ 1334 - 3 ' D v a "litalloW STROUD ENGINEERING, P.A. Hestron Plaza Two 151 A Hwy. 24 MOREHEAD CITY, NC 28557 (252) 247-7479 Stormwater Sand Filter System 5 Drainage Area = 11383 sf 0.26 acre joB PM 1H 31o AP-6p R51 DP SHEET NO. _ OF CALCULATED B _ DATE n CHECKED BY DATE D SCALE .t"ItIl IV ilo ? ,,??•Q,?H Cqk I. SEAL 13343 s" Q, : Q 'e ..GINS t). cu?vx Sediment/Sand Filter Chamber Design Surface Area Req'd = 360 ft2 per acre of drainage area 94.07 sf Volume Req'd 540 ft3 per acre of drainage area 141.11 cf Volume Design: Chamber Length = 65 ft Chamber Width= 1.5 ft Storage Depth = 1.5 ft Storage Volume = 146.25 ft3 Surface Area Prov'd 97.5 ft2 Volume Prov'd 1 46.25 ft3 Collection Line Sizing Calculation Assume average sand infiltration rate = 0.04 gpm/ft2 Surface Area of Sand Filter = 97.50 sf Req'd flowrate of outlet pipe = 3.9 gpm 0.009 cfs Diamteter Outlet Req'd = 1.30 in. '(assuming slope is 0.5%) STROUD ENGINEERING, P.A. JOB I _V Hestron Plaza Two SHEET NO. _ 151 A Hwy. 24 CALCULATED MOREHEAD CITY, NC 28557 CHECKED BY (252) 247-7479 SCALE vA ,- = 312-o l s F C 0.72 Ac-) St? D STt?l2 t??i? I2A? p'Q,L7 = le,00 C P/AG ?C-D. STbPINC-1 pteG'b = 12416 CF ..... OF- DATE SEA 'y . r • ?^^ 13,343 4;. °. • ONES % r,?,'d,OY C U, ; ?Q, >Fv. Stae C-?? P(?ov?D .- 130 LIP Y- 2 Li " x 30 " = 6 SO GF Z GH1!?tvtB?2 = 13C)o CF -s-Mp-A66 AV41L?3trt DA2 = 53?'2o SF ( i• 2.3 AC) 6-D• STDI-A(-j E- Pt---Q' D = 221 ?? Lr 2-A = LI S 1?7- x 1511 x W" X 2 c 1+AtitP l = 3bo G? 2?3 = 3g r x I" x 3?" x ?-1 Ca+t?rti6?2s = r 6G.--F 2= 1 D 2 L x ib 11 x 3ok x q CH AwLP.?t3a ' - 153Dc.F T-OTIV . sTVt C? = 2y..? c i= STb RA6--qtr AVA+ LA-O L G ?D STaRA{?? iZ?rD = X118 ScD. sir C,? FRo'J'fl = 1301,F x ice" X 3D" X- 2 C4C-mWZs= ' 7?; GF 5Tffmt?- AVAK-?9 LC k4 = 23.21 5t= (o•s3AC) sue. Si-e ,C RCC-'D ='q? 44:-F -'b, Srb? 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