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HomeMy WebLinkAboutSW8911202_Historical File_19920206State of North Carolina Department of Environment, Health, and Natural Resources Wilmington Regional Office James G. Martin, Governor Bob Jamieson William.. Cobey, Jr., Secretary Regional Manager February 6, 1992 DIVISION OF ENVIRONMENTAL MANAGEMENT Mr. Paul D. Dennis, President Sea Trail Corporation 651 Clubhouse Road Sunset Beach, North Carolina 28468 Subject: Certification of Compliance with Stormwater Regulations Project No. 911202 Sugar Sands Phase 3 at Sea Trail Plantation Brunswick County Dear Mr. Dennis: The Wilmington Regional Office received the Stormwater submittal for the subject project on December 3, 1991 and revised plans on January 31, 1992. Based on our review of the project plans and specifications which limit the built -upon area to 3,500 square feet on each of the 41 lots identified, we have determined that the project complies with the Stormwater Regulations set forth in Title 15A NCAC 2H. 1003(a)(2). This Certification shall be effective from the date of issuance until rescinded and the project shall be constructed in accordance with the plans and specifications as filed with the Wilmington Regional Office. Any modification of the plans submitted to this Office or further development of this site will require an additional Stormwater submittal/modification and approval prior to initiation of construction. Modifications include but are not limited to; project name changes, transfer of ownership, redesign of built -upon surfaces, addition of built -upon surfaces, redesign or further subdivision of project area. -continued- 127 Cardinal Drive Extension, Wilmington, N.. 28405-3845 Y Telephone 919-395-3900 • Fax 919-350-2004 An Equal Opportunity Affirmative Action Employer Stormwater Certification No. 911202 February 6, 1992 Page 2 of 2 ----------------------------------- Within thirty (30) days of the recording the required deed restrictions with the Registrar of Deeds Office a copy of the deed restrictions should be forwarded to the Department of Environmental Health and Natural Resources, Water Quality Section, 127.Cardinal Drive Extension, Wilmington North Carolina 28405. The deed restrictions provided to this Office must be accompanied with the deed book number and page. Failure to record and/or submit the deed restrictions is considered a violation of the Certification. If you have any questions concerning this matter, please call Paul Rawls or me at (919) 395-3900. Sincerely, S Dave Adkins Water Quality Regional Supervisor PER:DSK4:911202.FEB Attachment cc: Alan Lewis, Houston and Associates, P.A. Robert Tucker, P.E., Brunswick County Building Inspections Bill Mills, DEM Stormwater Wilmington Regional Files Central Files g1120Z �DIVISION OF ENVIRONMENTAL MANAGEMENT Submittal Form for Projects Using Density Limits for Stormwater Control PROJECT DATA Name of Project: Sugar Sands Phase 3 at Sea Trail Plantation Location (County, Township/Municipality, Address)_ Brunswick County, Shallotte Township Near Sunset Beach Applicant Name: Sea Trail Corporation Mailing Address: 651 Clubhouse Road Sunset Beach, NC 28468 Phone No.: (919) 579-2939 Submittal Date: 11/27/91 .. Brief Description (include map and appropriate drawings): Single Family Residential Subdivision and Access Roadway To Project Water Body Receiving Stormwater Runoff: Name of Water Body: Calabash"Creek Classification of Water Body: SA Total Area of Proposed Project (acres): 23.516 AC State/Federal Permits and Approvals Required: (Check Appropriate Blanks) CAMA Major Sedimendation and Erosion Control X 404 Permit DEM/DHS Sewage Disposal X Other (specify): CALCULATION OF BUILT -UPON AREA (Built -upon area means that portion of an individual development that is covered by impervious or partially pervious cover including buildings, pavement, recreation facilities, etc. but not including decking.) a) Built -upon area: 5.251 AC b) Total project area: 22.516 AC % built -upon = built -upon / total project area * 100 % built -upon area = 22.33% , If the water body receiving stormwater runoff is classified as SA, is the % built -upon area < 25%7 Yes X No If the water body receiving stormwater runoff is classified other than SA, is the % built -upon area < 30%7 .Yes No STORMWATER COLLECTION SYSTEM Is the only kind of stormwater collection system grass swales? Yes X No (Grassed -line swales should have a side slope of 3:1 (H:V) or less.) �If .no,..please provide .a detailed description. BUFFER AREA Is the built -upon area at least 30 feet from mean high water of all surface waters? Yes X No If no, please provide a detailed description. (Note: Only boat ramps, public roads, public bridges and walkways to water related facilities are allowed within 30 feet of mean high water if the project is intended to meet stormwater control requirements through density limits.) DEED RESTRICTIONS AND PROTECTIVE COVENANTS Do the deed restrictions and protective covenants ensure that subdivisions maintain the development consistent with the plans and specifications approved by the division and include the State as a beneficiary of the restrictions? Yes No (Include a copy of the restrictions and covenants with this form.) CERTIFICAT10N I, Paul D. Dennis , certify that the information included on this submittal form is correct, that the project will beconstructed in conformance with this information, and that to the best of my knowledge,- the proposed"project complies with the requriement of 15 NCAC 2H.1003 (b). 1.2— Signdtufe-Chtmer or Agent DcAte 651 Clubhouse Road, Sunset Beach, NC 28468 Address If agent, please list owner's name and address below: DIVISION OF ENVIRONMENTAL MANAGEMENT SIGN -OFF Regiona Office 2 _ � . D t lu Individual Evaating Forms/Plant G % 9 Z. a e Regional Water Quality Supervisor CC: Applicant/Region/Mills/CF HOUSTON and ASSOCIATES, PA Consulting Engineers SHALLOWS, NORTH CAROLINA 28459 Telephone (919) 754-6324 Facsimile (919) 754-2121 Mr. Paul Rawls, Environmental Engineer Division of Environmental Management North Carolina Department of Environment, Health, and Natural Resources 127 Cardinal Drive Extension Wilmington, North Carolina 28405 4918 Main Street Post Office Box 2927 Thursday, January 30, I992 RECEIVED .IAN 31 VP Wilmington Regional Office Subject: Sugar Sands Phase Three - Sea Trail Plantation Brunswick County, North Carolina Revised Subdivision Layout Submittal of Revised Stormwater Plan - Density Limits Option Dear Mr. Rawls: On November 27, 1991, we made submittal of the subject project for your department's review and approval. On December 13, 1991, we transmitted copies of revised plans and additional hydraulic calculations to you due to minor revisions we discovered that would be necessary to our original design plans. Since our last submittal to you on December 13, 1991, our Client has decided to revise the subdivision layout for this project. As you recall, we have briefly discussed this matter during a recent telephone conversation. The revised subdivision layout affects the previous submittals to your department as follows: (1) it will add additional lots (41 instead of the previous 39 lots), (2) it will add an additional amount of total impervious surface, (3) it will modify proposed drainage patterns and flow volumes and (4) it requires a minor modification of the original project limits. It should be noted that the total percent built -upon area for this project has been reduced from that which was originally proposed. In order to eliminate any confusion between our previous transmittals and the enclosed revised submittal package, we have prepared a completely new package. Enclosed are the following documents which have been revised accordingly: 1. Three (3) sets of our revised design plans. 2. Three (3) sets of our revised design calculations. 3. Two (2) revised originals of the Projects Using Density Limits for Stormwater Control form which has been executed by the Owner. Mr. Rawls Page Two Sugar Sands Phase 3 January 30, 1991 Sea Trail Plantation 4. Two (2) revised originals of the required restrictive covenant and deed restriction. 5. Two (2) copies of the authorization by the Owner for our firm to submit design plans (no revision necessary). 6. Two (2) revised originals of the statement regarding reserved areas by Sea Trail. We have coordinated the revision of this project with Mr. Dan Sams for approval of the erosion control portion of this project. We trust that you received your copy of our resubmittal letter to Mr. Sams regarding this matter. We trust that you will find our enclosed submittal package in order and that this project warrants your department's approval. As always, we appreciate your prompt attention in this matter. Should you require any additional information, or have any comments, please do not hesitate to contact our office at your convenience. Sincerely, Alan C. s, Vice -President Houston and Associates, P.A. Enclosures cc: Mr. Dan Sams, P.E., NCDEHNR - Land Quality Section Mr. Dean Walters, Sea Trail Corporation File; 91-0426 (Sea Trail, Sugar Sands Phase 3 ECP & SW) Y RECEIVED J AN 1 1�-199 INilmingtnn Rc�1e�1 �iO� nati+� 4 I b T la,I Coy Cu.QQ.�r 35�0 SCALE: APPROVED BY DRAWN BY DATE: DRAWING NUMBER Houston and Associates; P.A. 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CONSULTING ENGINEERS 4918 Main Street Post Office Box 2927 Shallotte, North Carolina 28459 (919) 754-6324 JOB "' * - 44A-< T4, .-� SUBJECT kiP4,402 4".i'.-dX�7 2)IC64?1- SHEET NO. OFF CALCULATED BY AS ( DATE4 J° CHECKED BY DATE SCALE I 1 I ,.., ---r-ti--7---I-- 1 I I I --t--r--r--r-- I { I 1 --1--ti--�--r-- I I I , --r--r--r--�----ti--y--T--t-- I 1 I 1 --r--r--I--�-- --t--t--r--r-- I ---r--I--�---t-- I I 1 i --t r--r--r- /,p.y�.y 1 y� -�---1--�--T-- ' ✓%••o , r�� --r--r--r--�----�--T--T--r-- I I { I , 1 1 --r--r--I--�-- , 1 1 I --T--T--r--r-- 1 1 I 1 ---r--I--�--�-- -r--r--,----�--�---r--r-- --, r--I-- i-- --T--T--r--r-- I —11 I 1 I I 1 ! 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For overland flow, grassed surfaces, multiply Tc by 2. For overland flow, concrete or asphalt surfaces, multiply Tc by 0.4. For concrete channels, multiply Tc by 0.2. Figure 8.03a Time of concentration of small drainage basins. T_/-...:_♦ 8.03.4 Appendices -7) 6',1Ar 2C IE E 0 E L ii 4 In L U C T � y� c 10 - O.E j L O.E �1 Eel 0.1 5 23* WOV UON �i\��� ' • ������■�� NO Hill ■1llfl� H1N 10 20 40 60 2 3 4 6 8 12 18 24 Minutes Hours Figure 8.03b Rainfall intensity duration curves —Wilmington. 2C IC E E 0 4 U C (n _C O.E O.E `C 0.4 0.2 0.1 5 Duration ■ EN NI lid `!1�1 Illil ■N� 10 20 40 50 2 3 46 8 12 !8 24 Minutes Hours Duration Figure 8.03c Rainfall intensity duration curves —Hatteras. c �J Var VL- C-L)AIu z 8.03.5 ��'i'rivUill � Tables and Charts I Table 1 Runoff Coefficients for Use in Rational Formula of Land Use Commercial Industrial Apartments, schools, churches Residences, duplexes Residences, 5000-7000 sq ft lots Residences, 1/4-acre lots Residences, 1/2-acre lots Park Woodland C '- (slopes flatter (slopes steeper than 7%) than 7 ) 0.85 - 0.60-0.85 - 0.60 0.70 0.45 0.55 0.40 .50 0.38 '4d 0.48 0.35 0.3 0.4 0.2 0.2 Table 2 Selected Values for Manning n (See also Chart 6) Channel n Earth Channels, straight and bare 0.022 Earth Channels, grass lined, mown 0.030 Earth Channels, weeded sides 0.050 0.013 Wipe, concrete Pipe, corrugated metal 0.024 Pipe, clay 0.013 Concrete -lined Channels, troweled 0.013 Concrete -lined Channels, float finish 0.015 ' Values of Coefficient of Roughness (n) For Armco Corrugated Steel Pipe (Manninz's Formula)* Annular Helical I % x'/. in.'. 22/a x % in. (11,12) 22/3 x'/2 in. All 8 in. 10 in. 12 in. 24 in. 36 in. 48 in. 60 in. and Larger - Corrugations Diameters. Unpaved 0.024 O.U12 (1.( 14 111 V18in. 0.015 0.018 0.020 0.021 PAVED -INVERT 0.021 CUIVOWU.(li4 ll.(1i7 0.020 0.019 SMOOTH-FLO 0.012 411 0-012 0.012 0.012 0.012 HEL-COR CL 0.012 0.012 0L012 0.012 0.012 Annular Helical -3x 1 in. 48 in. 54 in. 60 in. (6 in. 72 in. 78 in. and Larger 3 x 1 in. Unpaved 0.027 0.023 0.023 0.024 0.025 0.026 0.027 PAVED -INVERT 0.023 0.020 0.020 0.021 0.022 0.022 0.023 SMOOTH-FLO 0.012 0.012 0.012 0.012 0.012 0.012 0.012 HEL-COR CL. 0.012 0.012 0.012 - 0.012 0.012 0.012 Annular Helical -5x1 in. 54 in. 60 in. 66 in. 72 in. and Largcr 5 x 1 in. Unpaved 0.025 0.022 0.023 0.024 0.025 PAVED -INVERT 0.022 0.019 0.020 0.021 0.022 SMOOTH-FLO 0.012 0.012 0.012 0.012 0.012 HEL-COR CL 0.012 0.012 0.012 0.012 0.012 'AISI Tests on helically corrugated pipe demonstrate a lower coefficient of roughness than for annually corru- gated steel pipe when there is a sig- nificant amount of helix or spiral in the pipe. For a given diameter, the greater the angle of helix, the less the friction factor. For a given helix, the greater the diameter, the less friction factor. The values in the above table are based on standard helical pipe man- ufactured from a 24-inch net width strip of steel. 10 Source: USDA-SCS Plate 1.36c Houston and Associates, P.A. .JOB _<EA -T�l� `c- 2 -s,40s -P"• 3 SUBJECT A :4 CONSULTING ENGINEERS SHEET NO. 11 OF ' 4918 Main Street Post Office Box 2927 CALCULATED BYDATE az 9' Z Shallotte, North Carolina 28459 (919) 754-6324 CHECKED BY DATE SCALE ---r--I--�--7-- 1 --t--r--r--r-- --1--�--T--T-- --r--r--r--r- ---I--Y--T--r-- --r--r--1--�-- --I--t--r--r-- ---r--r-�--�-- --r- �r--r--r-- -�--�---r--T-- --r--r--r--� - �--T--T--r-- --� --r--I---t-- --T--r--r--r-- 1 I �V 1 I 1- ---,---,-- i-- i-- -- i--7---,---,--- - --- --- i-- --r--r--{r I 1 i i I 17- I ' ' i 1"_ t i -; Cj .7 GJ -(� 4,9 i Q�LL /III 1 S.d aZ I I I I I 1 I 1 I I I I 1 1 1 1 1 1 Iec� a 1 1 I ! _f d W4, 1 I 1 I 1 1 1 1 1 1 1 I 1 I I I 1 I I I 1 I I I I 1 I I to- 1L`I'C. /r-I ---r--1---1--Z-- --T--r--r--r-- -'1--1--'7--T-- _ --r-'T -� .l -� T --T--T--r--r-- I ---r--,--�--�-- --T--r--r--r-- -�--�--�--T-- r--r--r--� - --�--�---r--r-- --I r--,-- ;-- ---�--T--r--r-- 1 l-- '(--, --� --�•-- m! ---' -G-- - �.1� ►T+ / 1 -I--'�--�--'r-- , 1 1 1 --L--L--'--J-- 1 1 1 1 -- I I 1 1 -- 1 1 1- 1-- �-- �' 7- 1 � 1 , I 1 I 1 �-- � T--r-- ! I 1 I 1 1 I •1 1 1 1 1 1 1 1 , 1 1 1 1 , 1 I I 1 I I I �1-T-T�- _- �_-1__y__y__ __+__r_-1•__`T �-"9-�-�}�Y — '� �y�y�l _4 � -�r�i���� __y__+__r__1-__ 1 I 1 I ---,---,--1-- -- I 1 I 1 1 1 1 1 1 i1 1 1 I I I 1 I 1 I 1 I I --7----r--r-- - -- - ---1--�-- --7- --1--7--r--r-- 1 1 1 �--7--T-- r--p--, 7 � , r--,-- i-- YA�e_LCLJSJ✓ ---'---'--J- - I I I I ---J=±lU17_-+ _L�_L/� ---IL - J-- �-- �-_ __ �--L--L--L-- -J--J--1--1-- _-L--L--L --1-- --J---1--•�--L-- --L--1 1 I ' --� --� -- I 1 I I 1 1 I 1 1 I I 1 1 1 CHANNEL IDENTIFICATION: SWALE A 1 1 1 I 1 1 1 I I I I 1 1 I I 1 I I FLOWRATE: 13.18513 CFS I I I ---r--I-- I--y-- I 1 I I I 1 --t CHANNEL SHAPE: TRIANGULAR . I f 1 1 1 1 I I 1 1 I .-I � I I 1 MANNINGS N VALUE: - 1 ----;--;--;-- --T SLOPE OF CHANNEL BOTTOM: .038 -SLOPE OF CHANNEL BANKS: .333 (VERT/HOR ) DEPTH OF FLOW: FT ---'---'-- --�-- .--i--i-- VELOCITY: 4.36490W4 FPS 1-_-4__4__1 ---------- I 1 1 hl 1 I ! 1 1 I I ---r--1--7---1-- I I I 1 --r--r--r--r-- I I 1 1 --,--7--�--T-- I 1 1 , --r--r--r--f-- I 1 I 1 --7--T--T--r-- ! 1 I I --r--r-ti--�-- 1 1 I 1 --T--T--r--r-- i 1 1 I 1 ` I 1 I I '1�, �1� yr �1, I p I I 1T�i���+-T--r--r--- p I ---r--� -1--�-- --T--r--r--r-- -�--11/--�-/-7-- i Jr �y�_ -- - r--r--i - --1--1--T--7-- � --1 yr--i -�-- ial`►---- J --1Z1--7--r--r-- l i i I- _I 'Cm. I 1-- j-- j-- ,- �- _�st -- I 1 1 1 I I I I I I I , 1 I Il 1 1 1 I 1 1 I I I I I LI I g I / 1 ' I I I I ! f I 1 1 I JOB ?SAIL -<&"R ---,AN_V ,lei Houston and Associates, P.A. CONSULTING ENGINEERS 4918 Main Street Post Office Box 2927 Shallotte, North Carolina 28459 (919) 754-6324 SUBJECT SHEET NO. aOF �S CALCULATED BY DATE / zz 9 Z CHECKED BY DATE SCALE t I 1 ---r--1--�--ti-- --t--r--r--r-- -7--y--ti--t-- 1 --r--r--r--r- --y--y--Y--t-- 1 :-r--r--I-- �-- --y--t--r--r-- 1 ---r--1---1--�-- - �--�t--r--r-- -�--�--�--T-- --r--r--r--� - --r-�--T--r-- --�--r--I---i-- --�--r--r--r-- I I f ---r--- 1 1 I ---r--r-- 1 1 1 I -I--�--�--T-- --I 1 J I r--r--r--{ - -----�- �--r-- --, r--1--�-- --�--T--r--r-- --, -- --,--- ---,---,-- ;-- ;-- --r--r--,---,--- - ;--�--�--T-- --r--r.�-r:f � - --�--�-- T--r-- I r- ;-- ;--T--T J PM: I 1 71 Y 1 I I I 1 I 1 1 -_ t 1 1 I I I 1 1 I 1 I 1. __}__}-_}__ I 1 I 1 I 1 I I 1 I I I 1 I I 1 I I I 1 I 1 1 I ---�- ;-- --;-- CHANNEL IDENTIFICATION: SWALE B ; -_r-- 1 1 1 I 1 I FLOWRATE: 1.737135 CFS 1 I 1 1 1 1 --- ---�_-;-- CHANNEL SHAPE: TRIANGULAR MANN I NGS N VALUE: .035 SLOPE OF CHANNEL BOTTOM: .04 ---� - --~-- -- SLOPE OF CHANNEL BANKS: .F33 (V'ERT/HORZ) �--�-- ---r---;--;-- DEPTH OF FLOW: .44 FT. *--r-- 1 t 1 1 1 VELOCITY: 2.987944 FPS 1 1 { I 1 1 I 1 ---1---'--J--J----1--1--L--�-- -J--�--�--1-- --�'--�--�--1-- --J--1--1--1----L--L--t--J-- '--1--'-- -1--- I ---L--1---l--J----1--1--L--�'-- -1--J--J--1-- --1--L--L--t'-- ---1--1--1--1-- --L--L'--�---�-- --1--1--1--L-- 1 __1--1__ _- I 1 1 1 ! I I 1 I I I I I I I { I 1 I 1 { 1 1 I 1 1 I I ---r--1--�--�-- --T--r--r--r-- -�--�--�--T-- --r--r--r--r- --r--r--�--r-- --�--r-�--1-- ---r--Y--r--r-- , 1 I I 1 1 I I 1 I 1 I I 1 1 1 1 1 1 I 1 1 1 I 1 II ----------- __ __1__Y__t__ ---r-�--�--�-- --T--r--r--r-- -�--�"1--T-- --r--�--,---, ---I--T--T--T-- --, r--r--,-- --1--T--r--r-- ---I-- - --- -- --� --� --� -- ------- -- -- --�--'---L- ----'1-- -- -- --L--� ---J-- ---- -- --T -- 1 I 1 I t 1 1 1 1 I I I I I 1 I I 1 I I I I 1 1 1 I 1 1 Houston and Associates, P.A. CONSULTING ENGINEERS 4918 Main Street Post Office Box 2927 Shallotte, North Carolina 28459 (919) 754-6324 ---r--,---I--y----t--r--r--r- , ' �l•� L _� LI / JQB SUBJECT SHEET NO. OF 15- CALCULATED BY DATE Aa Z CHECKED BY DATE SCALE -ti--y--t--t----r--r--I--�----�--t--r--r-- I CHANNEL IDENTIFICATION: SWALE C 1 I 1 1 I FLOWRATE : ` .711'=-)`IS CF'S 1 1 1 1 --; --;-- ;-- ;-- 1 --;-- CHANNEL SHAPE: TRIANGULAR 1 1 1 1 t MANN I NGS N VALUE: . o'.-,5 1 1 1 1 I 1 1 1 1 1 SLOPE OF SLOPE OF CHANNEL BOTTOM: CHANNEL BANKS: . , 006 -----y--�-- 1 1 I 1 --+-- 1 DEPTH OF FLOW: 1.15 FT. 1 1 1 1 --r--I---1--ti-- 1 --t-- VELOCITY: 2. 195611 FP`,.i-- 1 I I I 1 I I 1 I I I 1 1 1 1 I I 1 I 1 (VERT/HORS.' I 1 1 1 I 1 I 1 1 I I I I I 1 I 1 I 1 I 1 1 1 1 1 I I 1 I I I 1 I I I 1 I 1 1 --�--r--r--r-- I 1 I I --�--r--r--r-- 1 I 1 I 1 I I I 1 1 I 1 1 1 1 I I 1 I I 1 1 I I --•1--1--L--1"-- 1 1 1 I 1 1 1 I I 1 1 -r-=r-- 1 I 1 I T- I I 1 I -r--r-- 1 1 I 1 I I I I I I 1 I I I 1 , I I 1 , I I I i •r--r-- I i I 1 I I �r--r-- I I I 1 1 4 1,1_5-- 0 m 0 cat c 0 n. 2 0 E. CD 0 E 0 Note: Use nomograph Tc for natural basins with well-defined channels, for overland flow on bare earth, and for mowed -grass roadside channels. For overland flow, grassed surfaces, multiply Tc by 2. For overland flow, concrete or asphalt surfaces, multiply Tc by 0.4. For concrete channels, multiply Tc by 0.2. Figure 8.03a Time of concentration of small drainage basins. "min) 200 100 50 10 l61 T5.�., � 4-, 8.03.4 q 4 V V m e HOUSTON and ASSOCIATES, PA 101r�' Consulting Engineers 1) E C 1 tin i SHALLOTM, NORTH CAROLINA 28459 p ieFi'taHal Cfffic �tmtngtQ F+CIIA Telephone (919) 754-6324 4918 Main Street Facsimile (919) 754-2121 Post Office Box 2927 Friday, December 13, 1991 Mr. Paul Rawls, Environmental Engineer Division of Environmental Management North Carolina Department of Environment, Health, and Natural Resources 127 Cardinal Drive Extension Wilmington, North Carolina 28405 Subject: Sugar Sands Phase Three - Sea Trail Plantation Brunswick County, North Carolina Minor Revisions to Plans Submittal of Revised Plans and Additional Calculations Dear Mr. Rawls: We have made several minor revisions to our plans for the subject project. We have eliminated one of the culverts at the two project access points and have sized the remaining culvert. We have also provided outlet energy dissipators for each culverts as required. During a review of our plans while we were performing the above mentioned revisions, I discovered that the project limits as shown on our original submittal (November 27, 1991) was incorrect in one location. The project limits should follow between the Jones Course Number 5 Tee and the existing roadway right-of-way instead of along the roadway right-of-way line. The project limits has been revised to the proper location so it conforms to the total project area earlier reported. In addition, the existing asphalt cart path was inadvertently left off of the earlier plans (it's area, however, was reported in the impervious area chart). We now show the location of this existing cart path. Enclosed are two (2) copies each of the revised plans and additional hydrologic and hydraulic calculations that are related to our revisions. We have add'd revision symbols, notes and revision dates to these revised plans to clearly indicate our modifications. We have resubmitted this project to Ms. Carol Miller of the NCDEHNR - Land Quality Division for review and approval. Mr. Rawls Page Two December 13, 1991 Sugar Sands Phase 3 Sea Trail Plantation We trust that you will find the enclosed information in order and that this project warrants your department's approval. As always, we appreciate your prompt attention in this matter. Should you require any additional information, or have any comments, please do not hesitate to contact our office at your convenience. Sincerely, w � r Alan C. Lewis, Vice -President Houston and Associates, P.A. Enclosures cc: Ms. Carol Miller, NCDEHNR - Land Quality Section Mr. Dean Walters, Sea Trail Corporation File; 91-0426 (Sea Trail, Sugar Sands Phase 3 ECP & SW) State of North Carolina Department of Enviror_ment, Health, and Natumal. ResourcesWilmington Regional Office James G. Martin, Governor Bob Jamieson William W. Cobey, Jr., Secretary Regional Manager December 12, 1991 DIVISION OF ENVIRONMENTAL MANAGEMENT Mr. Paul D. Dennis, President Sea Trail Corporation 651 Clubhouse Road Sunset Beach, North Carolina 28468 Subject: Certification of Compliance with Stormwater Regulations Project No. 911202 Sugar Sands Phase 3 at Sea Trail Plantation Brunswick County Dear Mr. Dennis: The Wilmington Regional Office received the Stormwater submittal for the subject project on December 3, 1991. Based on our review of the project plans and specifications which limit the built -upon area to 3,500 square feet on each of the 39 lots identified, we have determined that the project complies with the Stormwater Regulations set forth in Title 15A NCAC 2H.1003(a)(2). This Certification shall be effective from the date of issuance until rescinded and the project shall be constructed in accordance with the plans and specifications as filed with the Wilmington Regional Office. Any modification of the plans submitted to this Office or further development of this site will require an additional Stormwater submittal/modification and approval prior to initiation of construction. Modifications include but are not limited to; project name changes, transfer of ownership, redesign of built -upon surfaces, addition of built -upon surfaces, redesign or further subdivision of project area. -continued- 127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone 919-395-3900 • Fax 919-350.2004 An Equal Opportunity Affirmative Action Employer Stormwater Certification No. 911202 Page 2 of 2 ----------------------------------- If you have any questions concerning this matter, please call Mr. Paul Rawls or me at (919) 395-3900. Sincerely, 0 C3ave Adkins Water Quality Regional Supervisor PER:DSK4:911202.DEC Attachment cc: Robert Tucker P.E., Brunswick County Building Inspections Bill Mills, DEM Stormwater Wilmington Regional Files Central Files DIVISION OF ENVIRONMENTAL MANAGEMENT g//Lo2 Submittal Form for Projects Using Density Limits for Stormwater Control PROJECT DATA Name of Project: Sugar Sands Phase 3 at Sea Trail Plantat� Location (County, Township/Municipality, Address): Brunswick County, Shallotte_Township Near Sunset Beach Applicant Name: Sea Trail Corporation Mailing Address: 651 Clubhouse Road Sunset Beach, North Carolina 28468 Phone No.: (919) 579-2939 Submittal Date: 11/27/91 Brief Description (include map and appropriate drawings): Single Family Residential Subdivision and Access Roadway to Proiect Water Body Receiving Stormwater Runoff: Name of Water Body: Calabash -Creek Classification of Water Body: SA Total Area of Proposed Project (acres): 20.293 AC State/Federal Permits and Approvals Required: (Check Appropriate Blanks) CAMA Major Sedimendation and Erosion r_. E uXV IIII 404 Permit DEM_/DHS Sewage Disposal U' Other ( specify) : 3 1991 CALCULATION OF BUILT -UPON AREA D E M (Built -upon area means that portion of an individual development that is covered by impervious or partially pervious cover including buildings, pavement, recreation facilities, etc. but not including decking.) a) Built -upon area: 4.746 AC b) Total project area: 20.293 AC % built -upon = built -upon / total project area * 100 % built -upon area = 23.39% If the water body receiving stormwater runoff is classified as SA, is the % built -upon area < 25%? Yes X No If the water body receiving stormwater runoff is classified other than SA, is the % built -upon area < 30%2 .Yes No STORMWATER COLLECTION SYSTEM Is the only kind of stormwater collection system grass swales? Yes X No (Grassed -line swales should have a side slope of 3:1 (H:v) or less.) e If .no, please provide.a detailed description. i r BUFFER AREA Is the built -upon area at least 30 feet from mean high water of all surface waters? Yes X No If no, please provide a detailed description. (Note: Only boat ramps, public roads, public bridges and walkways to water related facilities are allowed within 30 feet of mean high water if the project is intended to meet stormwater control requirements through density limits.) DEED RESTRICTIONS AND PROTECTIVE COVENANTS Do the deed restrictions and protective covenants ensure that subdivisions maintain the development consistent with the plans and specifications approved by the division and include the State as a beneficiary of the restrictions? Yes No (Include a copy of the restrictions and covenants with this form.) CERTIFICATION I, Paul D. Dennis , certify that the information included on this submittal form is correct, that the project will be constructed in conformance with this information, and that to the best of my knowledge,- the proposed :project complies with the requriement of 15 NCAC 2H.1003 (b). t ign tune -Owner or Agent Date 651 Clubhouse Road, Sunset Beach, NC 28468 11' Address C If agent, please list owner's name and address b&RINWE C E u U II U DEC 3 1991 DIVISION OF ENVIRONMENTAL MANAGEMENT SIGN-OFFD E M Regional Office i Da a I= 4/09.1 Date CC: Applicant/Region/Mills/CF ' E#aluating Forms/Plant ater Quality Supervisor HOUSTON and ASSOCIATES, PA Consulting Engineers SHALLO=, NORTH CAROLINA 28459 Telephone (919) 754-6324 Facsimile (919) 754-2121 4918 Main Street Post Office Box 2927 Wednesday, November 27, I991 Mr. Daniel E. Sams, P.E., Regional Engineer p V Land Quality Section ^ North Carolina Department of Environment, DEC 3 1991 Health, and Natural Resources 127 Cardinal Drive Extension D E M Wilmington, North Carolina 28405 # Subject: Sugar Sands Phase Three- Sea Trail Plantation Brunswick County, North Carolina Erosion Control Plan Submittal Dear Mr. Sams: On behalf of Sea Trail Corporation, we are pleased to submit for your review and approval two (2) copies each of the following documents: 1. Erosion Control Plan with Detail Sheet 2. Executed "Financial Responsibility/Ownership Form" These documents, together, represent the complete Erosion Control Plan we have developed for the subject project. We trust that you will agree that due to the simplistic nature of this particular project, hydrologic, hydraulic, and other such related calculations are unnecessary. As shown on the enclosed drawings,. the erosion control plan for this project implements only temporary erosion control measures. We calculate the disturbed area for this particular project to be 1.9 acres. Enclosed is a check from Sea Trail Corporation in the amount of fifty dollars ($50.00) to cover the required application fee. The application fee was calculated using the fee schedule previously provided us (ie_ $30.00 for the first acre of disturbed area and $20.00 for each additional acre of disturbed area or any part thereoO. We trust that you will find our enclosed submittal to be in order and that it warrants approval for the erosion control portion of this project. Mr. Sams Page Two November 27, 1991 Sea Trail Plantation Sugar Sands Phase 3 As always, we appreciate your prompt attention in this matter. Should you require any additional information, or have any comments, please do not hesitate to contact our office at your convenience. Sincerely, Alan C. Lewis, Vice -President Houston and Associates, P.A. Enclosures p E G E 0 U L I` U cc: Mr. Paul Rawls, NCDEM DEC 3 1991 Mr. Dean Walters, Sea Trail Corporation D E M File; 91-0426 (Sea Trail, Sugar Sands Phase 3 ECP & SW?3 9//7-0 Z HOUSTON and ASSOCIATES, PA RECEIVED Consulting Engineers [ C 1 n o 1 SHALLOTTE, NORTH CAROLINA 28459 MIMI lea Aegidnal Ofiioi Telephone (919) 754-6324 4918` gn Street Facsimile (919) 754-2121 Post Office Box 2927 Wednesday, November 27, 1991 p E�L��U I Mr. Paul Rawls, Environmental Engineer U ' Division of Environmental Management DEC 3 1991 North Carolina Department of Environment, Health, and Natural Resources f) E 127 Cardinal Drive Extension Z,0J # V4Le'2- Wilmington, North Carolina 28405 Subject: Sugar Sands Phase Three - Sea Trail Plantation Brunswick County, North Carolina Submittal of Stormwater Plan - Density Limits Option Dear Mr. Rawls: We are pleased to submit for your review and approval three (3) sets of the project plans, with supporting documentation included thereon, for the subject project. Also enclosed, are two (2) originals of the Projects Usinss Densitv Limits for Stormwater Control form which has been executed by the Owner. Enclosed are two (2) originals each of the required executed and notarized statements relating to this project. These statements refer to (1) the required restrictive covenant and deed restriction, (2) authorization by the Owner for our firm to submit these plans, and, (3) statement regarding reserved areas by Sea Trail. We trust that you will find our submittal package in order and that this project warrants your department's approval. As always, we appreciate your prompt attention in this matter. Should you require any additional information, or have any comments, please do not hesitate to contact our office at your convenience. Sincerely, Alan C. Lewis, Vice -President Houston and Associates, P.A. Enclosures cc: Mr. Dan Sams, P.E., NCDEHI,- R - Land Quality Section Mr. Dean Walters, Sea Trail Corporation File; 91-0426 (Sea Trail, Sugar Sands Phase 3 ECP & SW) AUTHORIZATION FOR PREPARATION OF STORMWATER PLANS AND SPECIFICATIONS AND SUBMITTAL TO THE NORTH CAROLINA DIVISION OF ENVIRONMENTAL MANAGEMENT PROJECT: SEA TRAIL SUGAR SANDS, PHASE 3 I, Paul D. Dennis, President of Sea Trail Corporation, do hereby authorize Houston and Associates, P.A., Consulting Engineers, located in Shallotte, North Carolina, to prepare stormwater plans and specifications for Sea Trail Sugar Sands Phase 3 as necessary to make submittal to, and obtain approval from, the North Carolina Department of Environment, Health and Natural Resources, Division of Environmental Management (NCDEHNR- DEM). It is my understanding that said submittal is to be made to the NCDEHNR- DEM on behalf of Sea Trail Corporation, as required under 15A NCAC 2H. 1003, for compliance to the North Carolina Stormwater Regulations. WITNESS my hand this -2% -,",day of November, 1991. Paul D. Dennis, President Sea Trail Corporation 651 Clubhouse Road Sunset Beach, North Carolina 28459 (919) 579-2939 STATE OF NORTH CAROLINA COUNTY OF BRUNSWICK 1, ' X;,/ i,,, v , a Notary Public of the State of North Carolina, County of Brunswick do hereby certify that Paul D. Dennis personally appeared before me this day and executed the above authorization. WITNESS, my hand and notarial seal this the .2�day of November, 1991. NOTARY PUBLIC My Commission expires //- .