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HomeMy WebLinkAboutSW8960404_HISTORICAL FILE_19961017STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW8 (110 o A oq DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE q q Lo 101') YYYYMMDD ,. State of North Carolina Department of Environment, Health and Natural Resources Division of Water Quality James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director Mr. Odell Williamson Ocean Isle Beach Realty N2 Causeway Drive Ocean Isle Beach, North Carolina 28469 Dear Mr. Williamson: Q IDFEE HNR October 17, 1996 Subject: Permit No. SW8 960404 Ocean Isle Beach Motel High Density Commercial Brunswick County Stormwater Project The Wilmington Regional Office received the Stormwater Management Permit Application for Ocean Isle Beach Motel on April 3, 1996, with final information on September 30, 1996. Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000. We are forwarding Permit No. SW8 960404 dated October 17, 1996, for the construction of Ocean Isle Beach Motel. This permit shall be effective from the date of issuance until October 17, 2006, 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 ajudicatory hearing upon written request within thirty (30) days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and binding. If you have any questions, or need additional information concerning this matter, please contact Linda Lewis, or me at (910) 395-3900. Sincerely, C� t'cf4-cr- rOtL Jim Bushardt, P.E. Acting JBB/arl: S:\WQS\STORMWAT\PERMIT\960404.00T cc: David Bowmen, P.E. Delaney Aycock, Brunswick County Inspections Ed Brooks, DCM WiRO John Parker, DCM Raleigh Linda Lewis Wilmington Regional--Office---':t Central Files Regional Water Quality Supervisor P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-5083 FAX 919-733-9919 An Equal Opportunity Affirmative Action Employer State Stormwater Management Systems Permit No. SW8 960404 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY DEVELOPMENT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO Ocean Isle Beach Realty Ocean Isle Beach Motel Brunswick County FOR THE construction, operation and maintenance of an infiltration trench system with bypass in compliance with the provisions of 15A NCAC 2H .1000 (hereafter referred to as the "stormwater rules') and the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of this permit. This permit shall be effective from the date of issuance until October 17, 2006 and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. 2. This stormwater system has been approved for the management of stormwater runoff as described on page 3 of this permit, the Project Data Sheet. The stormwater control has been designed to handle the runoff from 34,575 square feet of impervious area. 3. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 2 Project Name: Permit Number: Location: Applicant: Mailing Address: Application Date: Water Body Receiving Stormwater Run Classification of Water Body: Trench Depth: Trench Bottom Elevation: Total Impervious Surfaces Allowed: Green Area entering Pond: Required Trench Length @10.97 cf/If: Provided Trench Length: Required Storage Volume: Provided Storage Volume: Seasonal High Water Table Elevation: Type of Soil: Expected Infiltration Rate: Drawdown time: State Stormwater Management Systems Permit No. SW8 960404 DIVISION OF WATER QUALITY PROJECT DATA SHEET Ocean Isle Beach Motel 960404 Brunswick County Mr. Odell Williamson Ocean Isle Beach Realty a2 Causeway Drive Ocean Isle Beach, North Carolina 28469 April 3, 1996 off: ICWW "SA" 3 feet 8 MSL 34,575 square feet 5,498 square feet 393 LF 435 LF 4,317 cubic feet 4,772 cubic feet 4 MSL Sand 11.2 gph/sf 1.22 days State Stormwater Management Systems Permit No. SW8 960404 4. The tract will be limited to the amount of built -upon area indicated on page 3 of this permit, and per approved plans. 5. The permittee is responsible for verifying that the proposed built -upon area does not exceed the allowable built - upon area. 6. The following items will require a modification to the permit: a. Any revision to the approved plans, regardless of size. b. Project name change. C. Transfer of ownership. d. Redesign or addition to the approved amount of built -upon area. e. Further subdivision of the project area. f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. In addition, the Director may determine that other revisions to the project should require a modification to the permit. 7. 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. II. SCHEDULE OF COMPLIANCE 1. The permittee will comply with the following schedule for construction and maintenance of the stormwater management system: a. The stormwater management system shall be constructed in it's entirety, vegetated and operational for it's intended use prior to the construction of any built -upon surface except roads. b. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 2. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency. The approved Operation and Maintenance Plan must be followed in it's entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semiannual scheduled inspections (every 6 months). b. Sediment removal. C. Mowing and revegetation of side slopes. d. Immediate repair of eroded areas. e. Maintenance of side slopes in accordance with approved plans and specifications. f. Debris removal and unclogging of outlet structure, orifice device and catch basins and piping. g. Access to the outlet structure must be available at all times. 3. 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. 4. This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data. 4 State Stormwater Management Systems Permit No. SW8 960404 5. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation. Any deviations from the approved plans and specifications must be noted on the Certification. A copy of the approved plans and specifications shall be maintained on file by the Permittee for a minimum of ten years from the date of the completion of construction. III. GENERAL CONDITIONS This permit is not transferable. In the event there is a desire for the facilities to change ownership, or there is a name change of the Permittee, a formal permit request must be submitted to the Division of Water Quality accompanied by an application fee, documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request will be considered on its merits and may or may not be approved. 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- 215.6(a) to 143-215.6(c). The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances which may be imposed by other government agencies (local, state, and federal) which have jurisdiction. 4. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 5. The permittee grants DEHNR Staff permission to enter the property for the purpose of inspecting all components of the permitted stormwater management facility. 6. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and reissuance or termination does not stay any permit condition. Permit issued this the 17th day of October, 1996. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION t7'-.l C_ tL S (-1 c \'/ L (— 'X. Preston Howard, Jr., P.E., Director Division of Water Quality By Authority of the Environmental Management Commission Permit Number SW8 960404 State Stormwater Management Systems Permit No. SW8 960404 Ocean Isle Beach Motel Stormwater Permit No. SW8 960404 Brunswick County Engineer's Certification 1, ; as a duly registered Professional Engineer 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. Noted deviations from approved plans and specification: Signature Registration Number Date DIVISION OF ENVIRONMENTAL MANAGEMENT NORTH CAROLINA STORhIWATER N1AJNAGENMNT PERA11T APPLICATION I. GENERAL INFORMATION 1. Project Name Ocean Isle Beach Motel 2. Location, directions to project (include County, Address, State Road) Attach map...NC 904 South to Ocean Isle Beach, West @ end of 904 at intersection with First St 3. Owner's Name Odell Williamson Phone 910 579-7770 4. Owner's Mailing Address: #2 Causeway Drive City Ocean Isle Beach State NC Zip 28469 5. Nearest Receiving Stream '"tlantie 9c-ca" C W V1/ Class .g-B SA 6. Project description Construction of 28 motel units, pool, required parking area - See attached plans U. PERMIT INFORA4ATION 1. Permit No.(ro be fdfed b< by De+r) 5w'8 %04 o4 2. Permit Type X New Renewal_ Modification (ex. Permit No.?) 3. Project Type: Low Density _Detentio(E Infiltration Other 4. Other State/Federal Permits/Approvals Required meek approp i,. bL a,) CAMA Major X Sedimentation/Erosion Control X 404Permit III. BUILT UPON AREA (Pleaw ,ee ,vac 7N.10us dw .1007 for oppri,oble d,,,ay Gmin) Dpr�aiinage D�r�a'inaee Breakdown of Impervious Area Bub Bain Oycwe bdlenu belo.• ,).e dealgn impeMa.0 area) Classification _ -H 54 Buildings 0.40 AC 25 35 Allowable Impervious Area 0-07 0--4-2- A C Suess 0 Total Project Area 1.40 AC parkinglS W 0.63 AC Proposed Impervious Area 1.05 AC Other 0 % Impervious Area 74. 7% Totals 1.05 AC , TV. STOPNfWATER TREATMENT w ae +be he. Ae n ff w be n d) Fi`FN rst 16'runoff will drain to a series of catch basins and subsurface linfiltration system. Runoff in excess of First 1.13 will bypass infiltration system and directed to level spreaders, then flow at a nonerosive velocity Continued from front .., S[r over X', min. vegetative buffers toward the U-12ptik . 50 V. DEED RESTRICTIONS A1N-D PROTECTIVE COVENANTS Deed restrictions and protective covenants are required to be recorded for all low density projects and all subdivisions prior to the sale of any lot. Please Sce :;riachment A for the specific itcm� that matt be recorded tn; the type of project applied for. By your signature below, ,you certify that the recorded deed restrictions and protective covenants for this project shall include all the items required by the permit, that the covenants will be binding on all parties and persons claiming under them, that they will run with the land, that the covenant cannot be cbanged or deleted without concurrence from the State, and that they will be recorded prior to the sale of any lot. VI. OWNER'S CERTIFICATION I. Odell Williamson certify that the information included on this permit (Please Pi or rypc nan.e CL crly/ application form is correct, that the project will be constructed in conformance with the approved plans, that the deed restrictions will be recorded with all required permit conditions, and that to the best of my knowledge, the proposed project complies with the requirements of 15A NCAC 2H.1000. I authorize the byjo named person or firm to submit stormwater plans on my beba]f. Owner/Authorized VII. AIITHORIZATION (antis. ss coarpL=) Person or firm name Mailing Address and Title Date East Coast Engineering Company, P.A. P. 0. Box 2869 City Shallotte State NC Zip 28459 Phone (910)754-8029 Please submit form to the Regional Office that serves the area that the project is located, as indicated on Attachment B. cc: Applicant/WiRO//Central Files Office use only, � EA I only D E C E I V E APR 0 31996 1 PROJ # S(u $ Y(n0 4O4 Pax: 910.754.8049 Office: 910.754.8029 East Coast Engineering Company, P.A. Consulting Engineers Ms. Linda Lewis, Environmental Engineer Division of Water Quality North Carolina Department of Environment, Health, and Natural Resources 127 Cardinal Drive Extension Wilmington, North Carolina 28405 4918 Main Street Post Office Box 2869 Shallotte, NC 28459 Tuesday, September 17, 1996 Subject: Ocean Isle Beach Motel Stormwater Plan Ocean Isle Beach, North Carolina Dear Ms. Lewis: Thank you for your review comments dated September 10, 1996, pertaining to the Ocean Isle Beach Motel Stormwater Plan. We have added a vegetated filter detail to the plans showing the level spreader and width of filter. The vegetation type is covered by the Seeding Schedule. Also, we have attached calculations for the filter indicating a non -erosive velocity. Thank you for your helpfulness and willingness to work with us on this project. Should you require any additional information, or have any comments, please do not hesitate to contact our office. Enclosures pc: Mr. Robert Neill File: 96-0006 (Ocean Isle Beach Motel) Sincerely, Z�:�X/2 David B. Bowman, PE President East Coast Engineering Company P.A. , VIV AT R R D E C E I V E SEP 3 01996 D PROJ N�M`( aU40 - East Coast Engineering JOB c)' F. K07SL. Company, P.A. SUBJECT TO ZP1 wATE2 CA ts_ P.O. Box''_869 SHEET NO. J— OF Shallotte, North Carolina'_'8469 CALCULATED BY oB 910.754.8029 (0) 910.754-8049 (Fax.) 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Hunt, Jr. DIVISION OF WATER QUALITY Jonathan B. Howes Governor WATER QUALITY SECTION Secretary September 10, 1996 Mr. David Bowman, P.E. East Coast Engineering Post Office Box 2869 Shallotte, North Carolina 28459 Subject: ADDITIONAL INFORMATION Stormwater Project No. SW8 960404 Ocean Isle Beach Motel Brunswick County Dear Mr. Bowman: The Wilmington Regional Office received previously requested information for the Stormwater Management Permit Application for Ocean Isle Beach Motel on August 21, 1996. A preliminary review of that information has determined that the application is not complete. The following information is needed to continue the stormwater review: 1. Please add a vegetated filter detail to the plans. Indicate the flow spreader mechanism, the width of the filter, the type of vegetated cover, and calculations to indicate a non -erosive velocity. Please note that this request for additional information is in response to a preliminary review. The requested information should be received by this Office prior to October 10, 1996, or the application will be returned as incomplete. The return of a project will necessitate resubmittal of all required items, including the application fee. If you have any questions concerning this matter please feel free to call me at (910) 395-3900. Sincerely, Ms. Linda Lewis Environmental Engineer JBB/arl: S:\WQS\STORMWAT\ADDINFO\960404.SEP cc: Linda Lewis Central Files 127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone 910.395-3900 • Fax 910-350-2004 An Equal Opportunity Affirmative Action Employer 7-7 (—,n East Coast AUG 2,1 iQgF Engineering Company, P:A.............. 49i 8 Rfinstreet Fax: 910.754.8049 Consulting Engineers Post Office Box 2869 Office: 910.754.8029 Shallotte, NC 28459 Tuesday, August 20, 1996 Ms. Linda Lewis, Environmental Engineer Division of Water Quality NCDEHNR 127 Cardinal Drive Ext. Wilmington, NC 28405 RE: Ocean Isle Beach Motel Stormwater Plan Project No. SW8 960404 Dear Ms. Lewis: We have once again revised the stotmwater plan for the proposed Ocean Isle Beach Motel site. Enclosed are three sets of plans, three sets of calculations, and a plan showing the proposed drainage areas. Since the bypass runoff now drains toward "SA" classified water, we have stored 1 1/2" runoff, and routed the bypass water through a 50' vegetated filter. Please review this plan for approval. We are forwarding a set of these revised plans to Mr. Ed Brooks of CAMA. If you have any questions or need additional information, please call Mr. Alan Lewis or myself at our office. Enclosures pc: Mr. Robert Neill File - 96-0008 (Ocean Isle Beach Motel) Sincerely, dl a��✓'��irw��'� David B. Bowman, PE President East Coast Engineering, Co., P.A. D E C E I V E AUG 211996 D DEM PROJ# East Coast Engineering IOB (=,' Company, P.A. SUBJECT P.O. Box''_S69 SHEET NO. 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'....3..?�. ...... I.... ...... H. c.:...:....:........ =..1R:. 9.7.s..... ......... ... Fii Pro ....:.... ..:..... i. J X :. .:.... 4.` . East Coast Engineering JOB ©tg -ram Company, P.A. SUBJECT s eMw^-r P.O. Box'_S69 SHEET NO. I— OF Shallotte. North Carolina 8469 CALCULATED BY V 910.764.S0'_9 (0) 910.76a-SO49 (Fax .l SCALE DATE _ .P�'EP.. .. :....:....:..._... ..i.i;...�,.-. . ........;..-.:....:.. IZi....-....7N.E ...............:...................._...-......... ..;.........;.... . ....:....:....:..AF. .�1!iJ la.1.3-Til I:FFS7;..C7.v-/+1. ....b.✓j.'CH...It.4. .oFF:..:TA..� ..-�7.RIi T7.. .Ih1....:....:...:.... 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A ....�-.8.�j..l ..............i... ....:...:........:....:....:...<.......... ....:....:...:....:.....,?iQ6:P..:.oF.. ;....;....;....; .... F.F.iJCYi..$ta'.. .... :..:....;...;......... M �;....3!.3.1 ;........ .. ..... ...1�..(a.sf��.;..If�7C3.;��........ ..;....;...;...:.... ... ....:...:...:....:... .l!JF1L'TK..A"Cl. .lJ.Pt1TE..=..1 .Z.4Al.%SP.INQ . X:.J.$.7.�a..SF.....:�,.1:A3�i,:Gi . l�1Fi�:....... . 'GF✓ of 5'rEM s 'C . f ....:....:..A ...... .... .....:....:...:.... yk .......... ;....: �.. ....:....:....i...........;...-;...-;........ :..............AQEA .. ?F. ...;....;. .. .. N.:.Sr�.....Nt.= ..;...;.....;...;.... .4d71 /' ..;. :.... .rl..i�'....7!� r.i....:...;...' ....sT ...:....:.... ... '....'....:.......trF�i.�P.P+a ....!?r.=!1 ...!%HK.1f....:....'...... s�'!.ttt.................y... ............. ....:......57a¢�+GE.......J.�Y. �..SYtkr�.=...1 .,...,c.4c� ... ... ........ :--- _...:.... ....:....:...<....i......rA`,H. ...t?F... NATVPAl-....P..fzt`.f..�.�.,).o ....=...fr.J.Z.�?F......................-i;...-..-.... i ... LOF..I1--.t ,. a. .;.. TF.. .1.1'..z.Gat.... .IH .. x..15 .1.Z9Z.. . l.i. NK......... �7D.R fsC� �.APA4 ...Y..i.'.. �Q..7.. ......:......(.� .....:....:........:. E...........:.......Tlf? ... Fig. .t �N q... .. ..'...4£i..z....;:... .,...%... -sz. ..4. .hPyis..>....... State of North Carolina Department of Environment, Health, and Natural Resources Wilmington Regional Office James B. Hunt, Jr. DIVISION OF WATER QUALITY Jonathan B. Howes Governor WATER QUALITY SECTION Secretary July 22, 1996 Mr. David Bowman, P.E. East Coast Engineering Post Office Box 2869 Shallotte, North Carolina 28459 Subject: ADDITIONAL INFORMATION Stormwater Project No. SW8 960404 Ocean Isle Beach Motel Brunswick County Dear Mr. Bowman: The Wilmington Regional Office received a Stormwater Management Permit Application for Ocean Isle Beach Motel on july 1, 1996. A preliminary review of that information has determined that the application is not complete. The following information is needed to continue the stormwater review: 1. Delineate the proposed contours in the infiltration pond areas. 2. Show/label the connections from the catch basins into the infiltration system. 3. There is perforated pipe shown at the entrances, but no indication is given as to how the runoff enters the infiltration system, or is bypassed. 4. The calculations must be sealed. 5. The more conservative value in a range of values should be used for the drawdown time, ie., 11.2 gallons/square foot/hour. 127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone 910-395-3900 • Fax 910-350-2004 An Equal Opportunity Affirmative Action Employer Mr. Bowman July 22, 1996 Stormwater Project No. SW8 960404 Please note that this request for additional information is in response to a preliminary review. The requested information should be received by this Office prior to August 22, 1996, or the application will be returned as incomplete. The return of a project will necessitate resubmittal of all required items, including the application fee. If you have any questions concerning this matter please feel free to call me at (910) 395-3900. Sincerely, Ms. Linda Lewis Environmental Engineer DA/arl: S:\WQS\STORMWAT\ADDINFO\960404.JUL cc: Linda Lewis Central Files 2 LA 1; o F '762040¢ _ behl'17 CLC//_ cr 3C�� oyVU-✓ion No_ l /p- 2G7 !U 5-017 l 21 —1dU lk _ �lPrm 2/1I_2 I 1 � --- vFYV_G�/_Q S �SiCl2—s5e1 �2Gk. _J_i�Uc,lU/r_¢S YnuSi�IJf'- d�nCe�-1 -- Fw cl av e (Gem Cif — -- - - -- - - --- I} f'�v�Q �-��•cic-_ un c��+- c�,u n e, 2---��hz_bl n eecl - _—I�PDt ci+sc% ii i i. i i ii el Fax: 910.754.8049 Office: 910.754.8029 East Coast Engineering Company, P.A. Consulting Engineers 4918 Main Street Post Office Box 2869 Shallotte, NC 28459 Thursday, June 27, 1996 Ms. Linda Lewis, Environmental Engineer Division of Environmental Management North Carolina Department of Environment, Health, and Natural Resources 127 Cardinal Drive Extension E C E l V E DWilmington, North Carolina 28405 p JUL 011996 D Subject: Ocean Isle Beach Motel Stormwater Plan Ocean Isle Beach, North Carolina PROJvE2lG�d 4CX� Dear Ms. Lewis Thank you for your review comments dated May 3, 1996, pertaining to the Ocean Isle Beach Motel Stormwater Plan. As you are aware, the plans were submitted to CAMA for their approval also. We were waiting to receive their comments before responding to your letter, because we wanted to see whether there were significant changes requested in the site plan. Since they have required all parking and drainage structures to be removed from within their 60' setback, the stormwater management design has had to be completely redesigned. Enclosed are four sets of the revised plans, as well as a copy of the revised calculations and a copy of the soils report. I believe the following revisions to the plans address the concerns mentioned in your review. 1) We have included a typical building footprint and have labeled drives, walks, and buildings on the plan. One reason this plan is a little harder to follow than most, is that there are drives and parking areas located underneath the buildings; 2) The trench widths for the infiltration trenches have been revised. The revised trench dimensions are shown on the plans, as well as in the calculations; 3) The revised calculations are based on differing trench widths for each trench. These are shown in the calculations; 4) The pool deck is to be constructed of treated lumber; 5) A revised bypass plan has been designed, consisting of an additional pipe system, which is separate from the infiltration pipe. The invert of the bypass pipe is no lower than the top of the filter trench. The bypass water will not be run through the infiltration pipe; 6) The Seasonal High Water Table is at an elevation of 6.5'. The system meets the 2' separation requirement; 7) According to the soils evaluation completed by Soil Tech Engineering, the soils on this site are relatively clean, free draining sands, which generally contain less than 1.0% fines; 8) The expected average drawdown times of the system, for the first 1" of runoff, are shown in the calculations. These times are based on an average infiltration rate of 18 gal/SF/hour , as indicated in the soils evaluation; 9) The vegetated filters have been revised and relocated from those shown on previous plans. The reference to vegetated buffers has been removed from the plans. Thank you for your helpfulness and willingness to work with us on this project. Should you require any additional information, or have any comments, please do not hesitate to contact our office. Sincerely, d��Z� David B. Bowman, PE President East Coast Engineering Company, P.A. Enclosures pc: Mr. Robert Neill File: 96-0006 (Ocean Isle Beach Motel) Coast Engineering WL JOB o M=Company, P.A. SUBJECTP.O. Box'_369 E SHEET NO. ! OF te, North Carolina'_3469 CALCULATED BY 0^-9 (0) 910.754-3049 (Fax.) SCALE DATE - - _.:...It-1;. .�(.ls�u..;.....M...CA.1r411 .:. ...........:....... '....:.. n .... ;........,.... ..1...;..... .................. J4P..0 ;... _....... IZ S..�w . . .... - - - P,n .......... ...:.... ..... :....:...:... ......A ....Z.......4 :.. :.........: . 17!NGr..........Z.fc:0.7..sF............ :... :....... .........:....P�..eiaT...:......zG.:l.a.sv..........: _ t V A Al : 4 sFr ....:................... .... ..............— .. ....i....i....:...........i...........' ,P.sTlQA1........i..9.�G....`,F... A... ......s1 ...;....PH J WJiJG..:....:.......'d G! Q J...sF.. ... .................. .... ............ Fro r...........2 4.7. K?. u..... �. T...........z4.7.a.5r............ J) lt, n{ k. f fsaLF -N k .........;... :............................ ISM*- 9.s�. sf .......... ........................ � V _ a ..... .... .......;a. t.Q,t: .:....:........:ze ,..; ....:....;....;..�.... Al1G..2- ..1996 ..�.............. 40'-0" 6'-0" 6'-0„ 27'-6" —11 — — — — — — — — — I PILING (TYP) I �BLDG. LINE ABOVE I I I .7'-6" 1. 27'-6" 7'-6„ I i I+ 0 E C E I V E JUL 011996 D PROJ k D E M ry °M"01 o -MOTH. B �1IBM FOOTPRM �':�$ �g _ oc�w s1� oEvacwNarr.,, H ` April 14, 1995 Ocean Isle Beach Construction Company, Incorporated 6000 Pro Shop Drive Ocean Isle, North Carolina 28469 Attention: Mr. D. Carroll Williamson Reference: Infiltration Testing Ocean Isle Condominiums Ocean Isle Beach, North Carolina Job No. 701-95 Dear Mr. Williamson: 7650 MARKET STREET WILMINGTON, NORTH CAROLINA 28405 OFFICE: 910-686-9114 FAX: 910-686-9666 D E C E I V E JUL 011996 D PROJ.# �r"caCo4C�4" Soil Tech Engineering, Inc. has recently completed an investigation of the subsurface soils at the site of the proposed Ocean Isle Condominium project, planned on Ocean Isle Beach, North Carolina. Our investigation consisted of evaluating the subsurface soils for soil type and infiltration rate. Two test borings were advanced on -site to a depth of 10 feet below the ground surfaces. Each soil test boring, conducted in accordance with procedures specified by ASTM D-1586, determined the consistency of the subsurface conditions and provided a classification of the soils encountered to the depth of each boring. Selected samples of this subsurface soils encountered were also tested for grain size analysis in accordance with the American Society for Testing & Materials (ASTM) procedures entitled ASTM D-422; Particle Size Analysis of Soils." Infiltration testing was also conducted at three locations on -site at the approximate depth where the designed stormwater discharge is anticipated. Based on the results of our field and laboratory testing, the subsurface soils were found to be a relatively clean, free draining sands, which generally contained less than 1.0 % fines (material passing the No. 200 Sieve). Our infiltration testing determined that a rate from 11.2 to 26.2 gallons per hour per square foot, should be used in design of the stormwater discharge system. From our site observations of the subsurface conditions, we predicted that the,seasonal high watertable is approximately 6 feet below the existing ground surface.: Because of the close •proximity of the ocean, we anticipate that during extreme high tides, this water level will be temporarily higher. Ocean Isle Condominiums April 14, 1995 Page Two Attached please find the results of our testing. If you have any questions, please contact us. Very truly yours, SOR�TECH ENGINEERING Pail`cs A. Downing, Jr. Manager John S. Tunstall, P.E. Staff Engineer PADjr.JST/dm 701a4-14 -70 '1QP Dunes I 01 02 03 B-1 B-2 I Proposed Ocean Isle Condominium r Beach Road ® Denotes Infiltration Testing 0 Denotes Soil Test Boring Location North ��rJ Ocean Isle Condominiums Ocean Isle.Beach, N.C. Job No. 701-95 ty 0 ft- 5 ft- 10 f t- 15 ft- 20 ft- 25 ft- SOIL TEST BORING LOG BORING # B-1 BLOWS/FOOT SOIL DESCRIPTION 5 10 15 20 Brown Fine SAND 5 • I5 • Tan Fine SAND I Brown Fine to • 7 Medium SAND Boring terminated at 10 feet below the surface. BORING # B-2 BLOWS/FOOT SOIL DESCRIPTION 5 10 15 20 Brown Fine SAND 4 • Tan Fine SAND Brown Fine to Mediu • 14 SAND Brown Fine to • B Medium SAND • 12 Boring terminated at 10 feet below the surface. Groundwater was encountered at 8.0'•below the surface at B-j and 7.51 below the surface at B-2, at the time of boring. Ocean Isle Condominiums Ocean Isle Beach, NC I orntoo 1 #1 PENETROMETER TESTING OCEAN ISLE CONDOMINIUMS OCEAN ISLE BEACH, NORTH CAROLINA Job No. 701-95 Depth Blows per 13/4 Below (F1) Inch Increment Soil Depth and Description 0" - 3" White fine/medium SAND 3" - 72" Tan fine/medium SAND No groundwater encountered to depth investigated #2 0" - 4" White fine/medium SAND 4" - 60" .' Tan fine/medium SAND 60" - 72" White fine/medium SAND No groundwater encountered to depth investigated #3 0" - 4b" . Light Tan fine/ •. medium SAND 40" - 48" Tan fine/medium SAND 48" - 72" Light Tan fine/ medium SAND No groundwater encountered to depth investigated LOCATION DEPTH: #10 # 40 # 80 #200 PERCENT MOISTURE: SOIL DESCRIPTION: GRAIN SIZE ANALYSIS OCEAN ISLE CONDOMINIUMS OCEAN ISLE BEACH, NC JOB NO.701-95 #1 #3 3"-72" 0"40" % PASSING. BY WEIGHT 99.9 99.8 98.7 89.1 11.0 6.4 1.0 0.8 3.6 3.5 Light ..Tan Tan Fine to Fine to Medium Medium SAND SAND .z ' State of North Carolina Department of Environment, Health, and Natural Wilmington Regional Office James B. Hunt, Jr. DIVISION OF ENVIRONMENTAL MANAGEMENT Governor WATER QUALITY SECTION May 3, 1996 Mr. David Bowman, P.E. East Coast Engineering Post Office Box 2869 Shallotte, North Carolina 28459 Resources Jonathan B. Howes Secretary Subject: ADDITIONAL INFORMATION Stormwater Project No. SW8 960404 Ocean Isle Beach Motel Brunswick County Dear Mr. Bowman: The Wilmington Regional Office received a Stormwater Management Permit Application for Ocean Isle Beach Motel on April 3, 1996. A preliminary review of that information has determined that the application is not complete. The following information is needed to continue the stormwater review: 1. I am unable to discern the buildings from the pavement. Please add some contrast or provide the typical footprint of the building. Label all sidewalks, asphalt drives, steps, etc. 2. The trench detail shows two widths, 3' for Area A and 4' for Area B. There are no notations on the plans as to what constitutes Area A and Area B. 3. The trench detail also shows a cross-section that is 3' wide and 30" high. You use an area 3' by 3' to calculate the storage volume. If a 3' x 30" area is used, the volume provided will not be adequate. Please revise. 4. Please label the pool deck material. If it is concrete, show spot elevations and how the pool deck will drain to the infiltration area. 5. The bypass you propose will not meet the State requirements. The pollutants in the first inch will be flughed through the filter media by the incoming ninoff. The runoff must be redirected before it has a chance to even reach the system. 127 Cardinal Drive Extension. Wilmington. N.C. 28405.3845 • Telephone 910-395-3900 • Fax 910-350-2004 An Equal Oppormnity Affirmative Action Employer Mr. Bowman May 3, 1996 Stormwater Project No. SW8 960404 6. Please state in the calculations what depth the Seasonal High Water Table is, and whether or not the system meets the 2' separation requirement. 7. Please state the type of soil, and it's expected infiltration rate. 8. Please calculate the expected dmwdown time of the system assuming static conditions. 9. Technically, the vegetated overflow areas are filters, not buffers. Buffers imply undisturbed or planted areas that provide a screen between commercial and residential development. It is not clear from the plans how the excess runoff from the front basins will be directed to the vegetated filter areas. Please note that this request for additional information is in response to a preliminary review. The requested information should be received by this Office prior to June 2, 1996, or the application will be returned as incomplete. The return of a project will necessitate resubmittal of all required items, including the application fee. If you have any questions concerning this matter please feel free to call me at (910) 395-3900. Sincerely, /l ✓'Lt4'7A ✓" Ms. Linda Lewis Environmental Engineer DA/arl: S:\WQS\STORMWAT\ADDINFO\960404.MAY cc: (I_inda_Lew.isT Central Files K (fir -;ram ;rrt�r'a r, East Coast J cUEngineering CompanPARR 0 3 �QQn 4918 Main Street Fax: 917.754B0g9 Consulting Engineers 15W?q 0 464-Post Office Box 2869 Office: 910.754.8029---------------------5teettette, NC 28459 SMARTER Monday, April 1, 1996 Ms. Linda Lewis, Environmental Engineer Division of Environmental Management North Carolina Department of Environment, Health, and Natural Resources 127 Cardinal Drive Extension Wilmington, North Carolina 28405 Subject: Ocean Isle Beach Motel Stormwater Plan Ocean Isle Beach, North Carolina Dear Ms. Lewis: We are pleased to submit for your review and approval two (2) sets of the project plans, with supporting documentation included thereon, for the subject project. Enclosed are two (2) copies of the hydraulic and hydrologic calculations. Also enclosed, are one (1) original and one (1) copy each of executed Stormwater Management Permit Application and the executed Underground Infiltration Trench Maintenance Requirements. Enclosed is a check from our Client in the amount of $385.00 to cover the required application fee. We have forwarded copies of the plans for approval of the Sedimentation and Erosion Control portion of this project to Mr. Druid Roberson, Town of Ocean Isle Beach Erosion Control Officer. We will forward the required major CAMA permit application to Mr. Ed Brooks of the Division of Coastal Management this week. We trust that you will find our submittal package in order and that this project warrants your department's approval. We appreciate the assistance you gave us during the presubmittal project coordination meeting in your office. Should you require any additional information, or have any comments, please do not hesitate to contact our office at your convenience. Sincerely, l o Alan C. Lewis, Vice -President East Coast Engineering Company, P.A. Enclosures pc: Mr. Robert Neill File: 96-0006 (Ocean Isle Beach Motel) -60,.,c � z-t/lJv' ay+ w--7 (�—,(Yt � o�n� V+527.p `4 s auk - asOW aNdr - - -- -- �iv,woav� ayf �q `4 �T yob ti+ �alghCi- j -- �1rm s f 4'n//OGJ ayL 'a/gZla'aj 4ou si paq+aru Sg'cC��r�-�----------- apv i 1S � �v,ss�'a�S�s at1� �p a'ro----- a12 r-Cy" /J u! Palaa ;ka s f • vo y z�das , Z a'1.} s faa ut ��� �,s at7+ �cx� y ys ayf�� ul oa�oa •'-` v Y% 5� ��s rnoYs ta�a��w� �r - •fie �ta�Zw -�IaaP 1 I��I�� �'Q---- aaS uc� z 9 za za.y%- �- Sa�t�R u'.R (S �' S2 a•►2/ S �S �u ✓o " by �a f L'o, cz/-- C: I-V —ayf vo ns as n /—y I°• S ca.rc waa-lb 5novi �dG�w� valu s wow �u�i v.�a �s7o �ou r�z J10. tO OO)b ems ' ---- I 1' I < r^. i-• 1.-,� -._ l t East Coast Engineering JOB Company, PA. SUBJECr P.O. Box 2869 SHEEP NO. OF Shallotte. North LCarolina 23469 CALCULATED BY L IF 910.754.80::9 (0) 910.754-8049 Fax. 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State of North Carolina Department of Environment, Health, and Natural Resources Wilmington Regional Office James G. Martin, Governor Bob Jamieson William W. Cobey, Jr., Secretary Regional Manager October 15, 1992 Mr. J. G. Johnson, A.I.A. A Johnson/Renaud Architects P.A. 850 Beach Drive S.W. Sunset Beach, NC 28468 RE: Ocean Isle Motel Dear Mr. Johnson: The letter is a response to the request that you and Mr. Ken Stewart made of me during your office visit on Monday, October 12, 1992. I have reviewed the site plat that you provided me of the current construction of the Ocean Isle Motel to assess applicable provisions of the North Carolina Sedimentation Pollution Control Act. Reiterating our discussion, I expressed concern that the plat you provided while only 15,000 square feet in size in of itself, might be part of a larger project that is being phased in, in increments of less than one acre each in an effort to (incorrectly) avoid the N.C. Sedimentation Pollution Control Act. As I explained during our meeting, if a project is planned to exceed a total of one acre anytime during its land disturbance or disturbances, sedimentation and erosion control plan approval is necessary. Although you and Mr. Stewart admitted that an adjacent site was also part of the Ocean Isle Motel, the combined land disturbances would be approximately one acre (no one was able to assure complete accuracy). Since the former phase is complete and causing no problems and this phase is to less than 15,000 square feet in total development, a sedimentation and erosion control plan is not deemed necessary. If further phases of this project are planned, our office will request that a total site plan be developed for this project. We hope this clarifies the Land Quality Section position in this matter. If you have further questions, please contact our office. DES/dan Sincerely, Daniel Sams, P.E. Wilmington Regional Engineer Land Quality Section 127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • telephone 919-395-3900 • Fax 9193562004 An Equal Opponuniry Affirmative Action Employer