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Home My WebLink AboutSW8010647_COMPLIANCE_20040707STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW DOC TYPE ❑CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYMMDD 6el RECEIVED v``u TOWN OF SURF CITY JUL 0 7 2004 R O. BOX 2475 214 N. NEW RIVER DRIVE SURF CITY, NC Telephone: (910) 328-4131 Fax: (910) 328-4132 http://surfciry.govoffice.com A. I). (Zmdcr) Guy, Jr., Mayor Donald R. Helms, Council Member Nelva R. AINty, Mayor Pro-tem Douglas C. Medlin, Council Member Michacl H. Curley, Council Mcmbcr William J. (Buddy) Fowler, Council Mcmbcr June 8, 2004 Jim Gregson District Manager I)CM 127 Cardinal Dr. Ext. Wilmington, NC 28405-3845 The TON March 26, 20 The proper flit Fishing pier;'': }' wide ramp to 1Ve believe tliis'' 'I'hanlc YOU I -or consicl like to request a.modifc Xprlilber 3 ], Sincerely, 1, [vticlical Moore '['own Manager" - Surf City 1'd i beneFft>talose U5111L Per m>i 5-02 issued on Por l.liosc Using Fishing pler %vlth it env Park f'acilit.ies. A� 'lam � -..... ` a••a-",ti+�.w. „- �"^. � � � .J _.w.T'ii�. �sli�::'.-�- ti�i'':'�"--� C......+•r•^_ _�^ Yam..-._..� ' �+. :�t~'l•:'•^.. -,...-tY fir..... - �. r.:'-�� ,y_s:-ss:�-�•J•-+-'.r-... .� �_'r"�4._ .. .._. .�...:�r�'. :� pair• .....^+IY'..—..._.--•--• •� .�--.r.=.::::aw.�=�-"_ - .. .-w�""._-.. .tulle 14, 2004 Jin, Gregson Re; CAMA. Major Permit. No. 35-02 Dear Mr, Gregson, A retlLicst was made for modification to this hermit dated June 08, 2004 for an 8'x 16' restroom located beside the fishinlg pier. This restroom would be in place of the 1}reviously approved 15'x 20'restroom proposed beside the parking lot. This new location would better serve the pier and boat ramp. Sincerely, ev�C, adguett CANNA Local Permit Officer SurPCity C r b i ME r r i C N c � � 1 a • F STORMWATER CALCULATIONS SOUNDVI EW PARK SURF CITY, NORTH CAROLINA RECEIVED MAR 0 12002 DWQ PROJ # -5405 0/0(O PREPARED FOR: TOWN OF SURF CITY P.O. BOX 2475 SURF CITY, NORTH CAROLINA 28445 `'�g131r5+911►Ili/i/ J++1�111l9�1��1;� PREPARED BY: KEITH P. BULLA, P.E. 3202 BINFORD COURT WILMINGTON, NORTH CAROLINA 28405 (910) 791-4724 A NG A4c, rigFCL - I -51 -2- -ILL 107`3 ------- --- 0 ff6 7 --- IS P.) V-- - -2-0 �A��- �lb 5`�, -1 1,5.Sx,Sx_Z _�:7s�;_ �ox,s S7UD j I , --- -!��:75FT 670FT3 -70 FT �3 FT . ` - -_ ---- - - � - - _-- c+�� -_---_ ----- _-' __ -___--_-_--'----'-'--'-_ ---- ``~-- ' � -------'--- ------- ---Y '�--'--- -'-~-------- -- --��------�'�---- -`-'`-`-- ---' --- _--_--__ --_-_-- '-- - --'----'-- -' -------------------- ----------- - - - -- -- --'-- ' 1 ------- / x�u�_�_��_�_. '_-.... ............ ' S-S ^ - ---- '- - - ----' - -' � ' ' -'-----------'-- -'`--`- -- ----'-- ------�--- -----''-/y�---- -----'--� -----''--p�-�---- ''-- _ - '- '---' '----- -''---�-----'|-----�---'--'--'-----'----'----------------�---- '--�----- ---- � � / � 75�F�' ,!0_-7-��,' - _-__ -�4vo �-_-_--____-------- -' _ -_--- ____-_'------'-_--_'-_--__- '---_-''_____�___-------~ 71 --- ------'--'--- -T ,5'3 =77 � / A 2'��-7 �'-��-�-_-_' ---_-_--_- . __-__- ' --'--------- -r------- --- -- --'-- — -- -----'� ----- -----'-----� ----� ---/ /- ---/��/�v------ -1�� /+(/ / / �rr ~0- ------�--------- '7--� ' -- /- '----�----------7-�-'�---'--�/�o/y'�� -------` ' -__'_--- -_ --_-- ---' ----'------�-- `�'-- - ----~-' ��'- ---'--------'----,-----------'-'--------'�-- '- ..� ''- --' ' ---- '--' - ''-'-- --'- ---'--- - '--__/_� /2�/�7------� -- - -- ----^- -`--- ----- -- --- -`---- -- '- - --- /;y`� /_' - -- ' - - - ' -- - - - '-- -- -- - - / .,_-- _-- '- � -'-__-- .--_ --__-__-____---_---_.---_---___-_-__--'__-_--�'��-�_'-_---__/ -_'-----_ ---__--__'--__--_--_------ L��c , ) ---._--__ �_(_--_--._�_-_�__- --- - - ��'��—'--- --'----��l—��'�------------�----- -- 15 ;- }{ *cr-� � Li ... ...... Z, fvo 1r, Uj ---- --- -- r� ,c-- C1----._.� mac.... a.st.t�-=L.-- a ` r_ _ e_`_. C ... -- - -sc, 976 C - C .. -�-_ _ Y"5y U+ �, ct,( 74e Cl/ _ _i''e s %` 1`f �� _S Q--c .4, .... .... .. Jl Cl/7 C- , A_ - - --------- ----------- - ------ ----- -_--' _--_ --- ''-- --- '-----------------------'---- -----------�-'------'------------'-----------------'--' '�'------------ -------- ' - / /! --7�--l---- '------ '--- 2,6 --��'\ - - - ''--�l- '-----�-' '- ' - - --��-- - '--`�� -- --' -- --- -'--- -------- -- - S75 447 7 i c - t f -- - -- - - __ -i -Ss -.1-u3or.r-- - ----- - 3 ------ -- INFILTRATION BASIN ANALYSIS FILENAME: S:1WQS11NBASIN1010647-6.WK1 PROJECT NUMBER: 010647-6 DATE: 19-Mar-2002 PROJECT NAME: Soundview Par Basin #6 DRAINAGE BASIN: Cape Fear REVIEWER: L. Lewis RECEIVING STREAM: Topsail Sound CLASS: SA ORW Index No.: 18-87-10 If ORW, is site within the 575' AEC? YES overall low density is met SITE AREA 5.864 acres DRAINAGE AREA: 14490.' SF IMPERVIOUS AREA CALCULATION Rational C BUILDINGS PARKING/ASPHALT 7412 1 CONCRETE AREAS OTHER TOTAL :7412' C 056 Place a "I" here if Rational <. »1> % IMPERVIOUS, 1= ..5,1i:2% RV= .05+.009 (1) _ 0.5:1 ELEVATION OF SEASONAL HIGH WATER TABLE ._. ,75' FEET MSL REPORTED INFILTRATION RATE 6'. INCHES/HOUR or 0.5000. CUBIC FEET/HR/SF SURFACE AREAS AND ELEVATIONS AREA LENGTH VOLUME END AREA 10 175 1750 END AREA BOTTOM ARE 2625 SF VOLUME ! DEPTH 1 DRAWDOWN CALCULATION DESIGN STORM, INCHES ;15' DESIGN VOLUME 1:Q15 CUBIC FEET TOTAL VOLUME AVAILABLE 750 CUBIC FEET EXCESS VOLUME (PERCENT) 720/0 TIME TO DRAWDOWN 08. HOURS MUST BE <120 10 YEAR 10 MIN HIGH INTENSITY EVENT Intensity, i = 6.3 inches 1 hour. Volume for 10 yr. 10 min. event 704.61 CF < 1750 CF COMMENTS Volume and drawdown are (not) within Design Requirements. INFILTRATION BASIN ANALYSIS PROJECT NAME: Soundview Par Basin #1 DRAINAGE BASIN: Cape Fear RECEIVING STREAM: Topsail"Sound Index No.: 18-87-10 SITE AREA 5.864 acres IMPERVIOUS AREA CALCULATION BUILDINGS PARKING/ASPHALT CONCRETE AREAS OTHER TOTAL % IMPERVIOUS, 1= ELEVATION OF SEASONAL HIGH WATER TABLE REPORTED INFILTRATION RATE SURFACE AREAS AND ELEVATIONS END AREA END AREA BOTTOM ARE FILENAME: S:IWQSIINBASIN1010647-1.WK1 DATE: 19-Mar-2002 REVIEWER: L. Lewis CLASS: SA ORW If ORW, is site within the 575' AEC? YES overall low density is met DRAINAGE AREA: 4218 5F Rational C 2670 1 AREA LENGTH VOLUME 8.75 50 437.5 5.75 30 172.5 578 SF VOLUME / DEPTH / DRAWDOWN CALCULATION DESIGN STORM, INCHES DESIGN VOLUME TOTAL VOLUME AVAILABLE EXCESS VOLUME (PERCENT) TIME TO DRAWDOWN 10 YEAR 10 MIN HIGH INTENSITY EVENT Intensity, i = 6.3 inches / hour Volume for 10 yr. 10 min. event = CUBIC FEET CUBIC FEET HOURS 245.13 CF < COMMENTS Volume and drawdown are (not) within Design Requirements. MUST BE <120 610 CF INFILTRATION BASIN ANALYSIS PROJECT NUMBER: 010647-3 PROJECT NAME: Soundview Par Basin #3 DRAINAGE BASIN: Cape Fear RECEIVING STREAM: Topsail Sound Index No.: 18-87-10 SITE AREA 5.864 acres IMPERVIOUS AREA CALCULATION BUILDINGS PARKING/ASPHALT CONCRETE AREAS OTHER TOTAL FILENAME: S:IWQSIINBASIN1010647-3.WK1 DATE: 19-Mar-2002 REVIEWER: L. Lewis CLASS: SA ORW If ORW, is site within the 575' AEC? YES overall low density is met DRAINAGE AREA: 5895! SF Rational C 4507 1 A Place a 1" here if Rational s % IMPERVIOUS, 1= 76 5%` RV= .05+.009 (1) ELEVATION OF SEASONAL HIGH WATER TABLE <!>::1<' FEET MSL REPORTED INFILTRATION RATE { ; 6JINCHESIHOUR or 0.5000 CUBIC FEETIHRISF SURFACE AREAS AND ELEVATIONS AREA LENGTH VOLUME END AREA 5 30 150 END AREA 8 25 200 END AREA 11.25 47 528.75 BOTTOM ARE 1466 SF VOLUME I DEPTH 1 DRAWDOWN CALCULATION DESIGN STORM, INCHES DESIGN VOLUME TOTAL VOLUME AVAILABLE EXCESS VOLUME (PERCENT) TIME TO DRAWDOWN 10 YEAR 10 MIN HIGH INTENSITY EVENT Intensity, i = 6.3 inches I hour Volume for 10 yr. 10 min. event = 15' 'S8T CUBIC FEET 878.75. CUBIC FEET 51 < °/a HOURS MUST BE <120 403.15 CF < 878.75 CF COMMENTS Volume and drawdown are (not) within Design Requirements. r Keith P. Bulla, P.E. 3202 Binford Court Wilmington, N.C. 28405 Telephone: (910) 791-4724 February 28, 2002 Ms. Linda Lewis Environmental Engineer North Carolina Department of Environment and Natural Resources Division of Water Quality 127 Cardinal Drive Extension Wilmington, North Carolina 28405-3845 Re: Storm Water Management Permit Application Soundview Park, Pender County Town of Surf City, North Carolina Storm Water Project Number 010647 Dear Ms. Lewis: RECEIVED MAR 0 12002 DWQ PROD 4 C)'()i� 4n behalf of Mr. Patrick Thomas, Town Manager, Town of Surf City, I have enclosed for your review the revised storm water management application, one original and one copy; infiltration basin supplements; plans and specifications, in duplicate; calculations; project narrative; and, soil scientist report for the project Soundview Park. The $420.00 application fee was previously submitted with the original application. The enclosed documents have been revised in accordance with your comments with the exceptions noted below. The responses to like numbered comments to your correspondence dated December 5, 2001 and January 17, 2002 are as follows: December 5, 2001 Correspondence 1. The permit application has been revised to reflect a high density development. 2. The basins have been redesigned to provide a 50-foot long spillway bypass. As discussed with you at our January 1 t`s 2002 meeting, the shallow seasonal high groundwater table at the site is not conducive for construction of a collection basin with smart weir or directing flow with a swale. Either of these methods would require dropping the outlet elevation of the basins to below the seasonal high groundwater table. As stated in the attached soil scientist report, the seasonal High groundwater table is l 4-inches to 18-inches below ground surface. 3. The detail is not necessary since the storm water sheet flows from the basins and is not channeled or piped. 4. Mr. Lewis visited the site with our soil scientist, Eastern Soils Limited. Mr. Lewis suggested that the site be raised using fill material to obtain the 2-foot clearance of the seasonal high water table. We do not consider this as a viable option for this site. The filling of the site would require that the "'.r,<<, a - ". rA,.r+1,.. . •J1'. �i I' i'' 1' i.lj .'i� r, f •' _ •!.. ".(' •�+ r•' f r['1 .j -r 1• t,,.•rtilr:�f :fft'T+7Ck •.iCi",1J.•. � L' sr .,T II�:r'Fj _-t � �:r •r_r '1i r''N,y !1_.2 . . -,'- ;r,i t.,, nnl;i r'r .tif ...;i ivl /''F' + '-ii t ,J. i� ilr' . f l •r "Jli •,i� . 1 , it.7'l ra', ., . rll •, ffl'C' ,eft MAD,.1'if f: Lehi teleVJ 1'f.i1"['il' . r SV';� ? J J1 C,C;1 ;._. '?''' �k� ,r` �'� .Sir r•,..:I J::.f a r.�r',,,:(} ,.., ,? ;1:f� . =t`�i rE. es.;ul `• -�.I1'i:.-., " ., f11A .. �'. "a, r .'�f!_r+.:}`� , iJ •.ii'. _. T ..a'i'.'� 'r +_ -� i • )',!':,. ,�3r fi •+' .. I'll 01 I.J. 11,J It. y 1.4. �, ;N� ,. 11 ,, t � r ! i,:. .. !'I4 i•r. .'LNJ,,.. 1' )i ':r i' ",IS. J% , i+' ,fl .,r � r� �f, ',r i _.r t, •�rr�fei ..1L :i� ,. �tJr' .t. .. ,rr ,,� - y ')1'J {7 ,I t.' 1 .; '.r �il,�� r • k 'i t', 1i1. i , t [I -. '1 ... .�: . i..' r1i' ,r t.,iJ . J;'. '. `f+ri it e �- • :S:?f i' � t 71�r , � �+_ .fCr _ • tfiti' '.•� ., ry _,, ..''i _ � i .. J ,,,.J•I- existing access road be covered requiring it to be replaced. The required amount of fill would be a minimum of 2-foot. A maintainable fill slope of 3:1 would effectively reduce the useable uplands perimeter of the site by 6-foot thus reducing the parking, access roads and infiltration basin areas, dismissing this site as a viable project. Also, the filling of this site, that already has its challenges for stabilization, threatens the capacity of the existing soils to infiltrate runoff from the clogging of the voids in the existing sands by fine material from the proposed fill. January 17.2002 Correspondence 1. The basins have been designed to store more than the required l .5" minimum. 2. The overflow from each basin will discharge to vegetated filters. 3. Same as response to comment 2 for the December 5, 2001 correspondence. The overflows are directed to vegetated areas. 4. The porous pavement was not used. If you have any questions in regard to the revised storm water management plan, please advise. Sincerely, 0a, II, Keith P. Bulla, P.E. Project Engineer Enclosures cc: Mr. Patrick Thomas (w/o encs.) Charles Riggs & Associates (w/encs.) 4 1 r_ �r .rl.nl �� ¢'; }� r% 'ili.h r+',+t,. ry, til Ir i •� u_ t �. -'+ I (i �r I s } ;I r ;1 ��. at . • r ,rt rA.l, .�.,,''t- r .r' r;, , .r = t. r.l. , 1 r1Jllr..•_.. ..a ,r!. r .. i y' r tJr � 'r., r.,-•y,r n.._ �i r. It , r rrl,,. �•.t- '�. rs}�1:, � � � :iI+Y�LI'�rlti t..'1- 0 r' f1l:'.',, .! rtl' ,. !t 111yr... .Is: t isr!f ilJ TlTt!} ��.r. s �.- �r�' .f .�, , I Iy.r� Ali .. {I rr • rii lt'1r� i ire • [ � rl i ;1!. 1 ,r , 7 r ,Tt i u 1 .. r (II :`( Ir( i 1 . „�, !J. •� RECEIVED MAR o 12002 DWQ PROD # SEEDING SCHEDULE For Soundview Park Topsail Township Pender County, North Carolina Prepared For: Town of Surf City P.O. Box 2475 Surf City, North Carolina 28445 ,1` s .. �- VE Prepared By: Keith P. Buda, P.E. 3202 Binford Court Wilmington, North Carolina 28405 (910) 791-4724 y. 1 S T A E I: • .` . l� .. � � - -_�i � q.I � � � � = f 1.0 SEEDING SCHEDULE SOUND VIEW PARK TOWN OF SURF CITY PENDER COUNTY, NORTH CAROLINA February 28, 2002 PLANTING SPECIFICATIONS Seeding, mulching, and conditioning of the soils on the subject site is to be performed to North Carolina Department of Transportation requirements, Section 880, Standard Specifications for Roads & Structures, with the following provisions: 1.1 Seeding, mulching, and conditioning shall be done on all earth areas disturbed or filled by channel dredging, construction or as designated by the Engineer. 1.2 Seeding, mulching, and conditioning shall be accomplished as soon as possible after land disturbance to stabilize the soils and prevent erosion. The soils shall be stabilized permanently between the months of April and June. Prior to permanent seeding, the soils shall be seeded, mulched, and conditioned for a temporary grass cover as herein specified. 1.3 In order to prevent excessive soil erosion and sfltation, a grass cover shall be established as soon as possible following dredging and construction operations. The Contractor shall complete grading to the proper final grade and then perform seeding, mulching, and conditioning as the final grading progresses or within 30 days thereof, unless there is a specific permissible length of delay due to circumstances beyond the control of the Contractor. 1.4 Superficial scratching of the slope surface wifl not be sufficient seedbed preparation. On 2:1 or 12:1 slopes, a seedbed preparation will be required approaching the degree of preparation required on flatter areas as far as depth is concerned although the same degree of smoothness of seedbed will not be required. 1.5 The kind of seed, the rate of application of seed, limestone, and fertilizer is as follows (Contractor will be responsible for performing tests of on -site soils): Temporary Seeding - Fall Soundview Park Seeding Schedule Seeding Mixture Species: Rye (grain) Rate (lb/acre): 120 Seeding Dates: August 15 - December 30 Soil Amendments: Follow recommendations of soil tests from the Agriculture Extension Service for fertilizer and lime application rates. Keith P. Bulla, P.E. February 28, 2002 F.P fit 11 I If PIT. t 'o,", fT tk Z'e PIf "if, C. Col X! r--e :(4 r*I '{]IC I 41 st. Al t(- Li'e; Mulch. Apply 4,000 lb/acre straw. Anchor straw by tacking with asphalt, netting, or a mulch anchoring tool. A disk with blades set nearly straight can be used as a mulch anchoring tool. Maintenance: Repair and refertilize damaged areas immediately. Topdress with 50 lb/acre of nitrogen in March. If it is necessary to extend temporary cover beyond June 15, overseed with 50 lb/acre Kobe. Temporary Seeding - Late Winter and Early Spring Seeding Mixture Species: Rye (grain) Rate (lb/acre): 120 Annual lespedeza Rate (lb/acre): 50 (Kobe) Omit annual Iespedeza when duration of temporary cover is not to extend beyond ,rune. Seeding Dates: December 1 - April 15 Soil Amendments: Follow recommendations of soil tests from the Agriculture Extension Service for fertilizer and lime application rates. Mulch: Apply 4,000 lb/acre straw. Anchor straw by tacking with asphalt, netting, or a mulch anchoring tool. A disk with blades set nearly straight can be used as a mulch anchoring tool. Maintenance: Refertilize if growth is not fully adequate. Reseed, refertilize and mulch immediately following erosion or other damage. Soundriew Park Keith P. Build, P.E. Seeding Schedule February 28, 2002 '�: 1 �' :, r St `. i� 1. ' . . �� • '�.. ifr'I rT11, :!T:i rf.rli !. IfI..J,I frfl't'}. �/f .. 1 �U''!t1 �'- i � •?,ir. a' "f� ' f r �•1.:;! ,�41• . .f l i f.l. fl 1 I l:fr! �li'T.. �� ,',4:F' �.,f��F�, r ��.,., r.. 'i4 r ^C t'~`'. ,•r ,' � i �'I I):- '.iJ 'I l' r. '!' �' 1 • ' fill I; +r .!r)!J ,_J J 'I I. - _ _ � ii r .. .I. rl - ;1 :1 I frft; li . r.ir 'ri � .ill. II.I f � 'F .� �T ..L t r 'I � •_ I. �. . .lJ .. ,._ .r•..` '. - r J _'t,, T r•I;. l' :.E I" f. Fj I i Temporary Seeding - Summer Seeding Mixture Species: German millet Rate (lb/acre): 40 Seeding Dates: April 15 - August 15 Soil Amendments: Follow recommendations of soil tests from the Agriculture Extension Service for fertilizer and lime application rates. Mulch: Apply 4,000 lb/acre straw. Anchor straw by tacking with asphalt, netting, or a mulch anchoring tool. A disk with blades set nearly straight can be used as a mulch anchoring tool. Maintenance: Refertilize if growth is not fully adequate. Reseed, refertilize and mulch immediately following erosion or other damage. Permanent Seeding Seeding Mixture Species: Pensacola Bahiagrass Sericealespedeza Centipedegrass German millet Seeding Dates: April I - July 15 Rate (lb/acre): 50 30 5 10 Soil Amendments: Apply lime and fertilizer according to soil tests from the Agriculture Extension Service Mulch: Apply 4,000 lb/acre grain straw or equivalent cover of another suitable mulch. Anchor by tacking with asphalt, roving or netting or by crimping with a mulch anchoring tool. A disk with blades set nearly straight can be used as a mulch anchoring tool. Maintenance: Refertilize the following April with 50 lb/acre nitrogen. Repeat as growth requires. May be mowed only once a year. Where a neat appearance is desired, omit sericea and chow as often as needed. Limestone shall contain not less than 85 percent of calcium and magnesium carbonates and shall conform to the following minimum standards: one hundred percent (100%) must pass through U.S. Standard 10 mesh screen and forty percent (40%) must pass through U.S. Standard 100 mesh screen. 1.6 Equipment to be used for the application, covering, and compaction of limestone, fertilizer, and seed shall be approved for that use. Application of seed and fertilizer in Soundview Park Keith P. Huila, RE Seeding Schedule February 18, 2002 ,Il, l I.i!'1�. ' f�rrJ 1'r" 'gi,it�f,,'• •• . • •.;I', 7 1� �'.f�i! .+ .'` F'.. Tli7{jt �.{ _t �. f•{' k.� !Ff',.'�t�� { r, .r.. I' 1 ,I'a ✓:l. I' � r �.k, t{„`! s '; [Y��:7.:.. �'•r""1 f11!°+:�i.'. ..! .. ;�7fv:.':+�� r r S,,r 1 �.11llfrs .' . ,. .� „ ,i ,�.+._ .Y. ". . �, }. LEI •f ,�� •* tl •+ . �}� � ',' _ lili. i "r. :fr•»1 {'� '1{ ..-1 � i1.l�'� L :.11+Jr ✓}.``r,� :r�'-.}f,.:.�"J:TT! IiI�J r +'k.. •l.�r l•' 1.Jr`}f l..) •f.. .1'! ./ `i1 'li ''' + .I1�. t 7 .' 'k(n.. 'r 1 :��f•,{I '4h'r' :l{,,( 'l J >.. �-1 �`J.i1,( � + a, e,�r.' 'f 1:1. _ ' {:. �' :, II .F°CH il' '+r^ ,n/��•�,,; Ilr: . u to Iilh ' � . fI rt, r, I,rt,' tr.. � ' . ,., 1• 1 ...1 � ... :{'.-. :F J If(ia J. •I SI' f ,` rS ,f J i{'.r .. �li � . .1. s., 1_rI-P ,V I f i•.7Ifl' - r i ';1 I. F.' �' . � .i+ li i'rl' J� •+ _. ..Sr! '1 1 water suspension or by air blast methods will not be permitted on slopes flatter than 2:1. Should a hydraulic seeder be used for application of seed and fertilizer, the seed shall not remain in water containing fertilizer for more than 30 minutes prior to application. 1.7 Mulching - Mulch shall be spread uniformly over the area by hand or by means of appropriate mechanical spreaders or blowers to obtain an application satisfactory to the Engineer. It is the intent of this specification that satisfactory applications shall allow some sunlight to penetrate and air to circulate, but also partially shade the ground, reduce erosion, and conserve soil moisture. Care shall be exercised to prevent displacement of soil or seed or other damage to the seeded area during mulching. 1.8 The Contractor shall be required to take sufficient precautions to prevent mulch entering catch basins or pipe lines through displacement by wind, water or other causes. The Contractor shall apply a sufficient amount of asphalt to insure that the mulch is properly held in place. 1.9 In the application of fertilizer in seeding operations, or in the application of asphalt materials during mulching operations, adequate precautions shall be taken to prevent damage to concrete or metal structures. Such structures shall be adequately covered or application methods changed so as to avoid damage. Where any damage occurs as a result of the Contractor's failure to take adequate precautions, the Contractor will be required to repair such damage including any. cleaning that may be necessary before final acceptance of the work. 1.10 Once an area has been seeded and mulched, the Contractor is required to take adequate precautions to insure that all future construction operations do not damage these areas. No payment will be made for repairs of any kind that are due to negligence of the Contractor. 1. l 1 Fertilizer shall be the standard commercial product of analysis. All fertilizer shall be delivered in bags bearing the manufacturer's name, the chemical analysis of the project, and its weight. If not used immediately after delivery, fertilizer shall be stored in a manner that will not allow it to harden or destroy its effectiveness. 1.12 Seed shall be certified seed or equivalent based on North Carolina Seed Improvement Association requirements for certification. If the seed is not grown in the state where it is to be used, it shall meet the certification requirements of the Seed Improvement Association for the state in which it is grown. All seed shall be furnished in sealed standard containers. Seed which has become wet, moldy, or otherwise damage prior to seeding, will not be acceptable. 1.13 Mulch shall be any of the materials noted below: Soundview Park Keith P. Sulla, P.E Seeding Schedule February 28, 2002 ,•- '•,. . r:.�`i, ... ,� I i �. �- �•. ,• ,. !-r J. ! '�l ,L,•?, ,J}J11.�', u� r -.�., •t, lr, < ,a th '� t•^: 1' ,� ,!, •.>k� r+ ,€ ,, . ,f ,1 ;a� .. r,'i' .. , Y. r�'-- it'1,i3. ., .,� ., j' i. , ! - I•. .,.� ,`..}if 11L r'. it�rr. Irklr .r ,I,r;€1 {� r:.,f :� :• ^r' •+.. l.','I - - , (kl , r I. r.•(i lJ:. r.'•rr +1�•rlt.Jt�.al. ,r 4 � 'S 1 L• I 11 � r r• r {�r- •.' ,:. :"_.. ., Iu ...! .. , .',`: i•S...i 'T']'l, •i... fib€�.. 1:+' f , 1+]7'.% :1 }' ,. rji Ft !',jrl -rl� t.1it Itr, r i. r '- 1- ikJ'• f•': I J, , 11:: r, IT, `+Jr'i rJ f,, CJ) r,•^!` ,, t! ' ',,. J. 1 rrr --r?' Iv `•" t !f3 + -y . �t(J'r t, • 1 If �1if, Sl, �tl ,t'1'I' IY, f,� Ili F .�� I ,.il � jt .� IF.,'/ �)r `. Cry, �� ,iJ to �..''=yyt, r,: r. �' }1'I'. . .. j:r A r, h Zt rr. •. .L ' ;'yt � ). � If13.a r,L .. '{' V'} ;t.. [ k. r- .r In !� ir• , �. �� r' lf.,'i 'rt I ... .tf � -1 ... •F-I3.ITli� ✓ f.�a. n �•('. �, �' • alrJl� rJlf>~"€fi-.'. .- { , y ,i, 1 • r; ! ,! .,il. , 1^ l ,,fry :fbi :,� ,"+', rl� ...s•i:'r I , !fi-. r,- ,, i� r�i Ne ':1' r l.;ti f •r :!Jllx? i "..! .F. rsl. al :r %Ill•ti, 1, ."-..}:. ,1'r ,i r;,. .,- ', -. ,1 }: l.t. {1 I .-� l _,1?i 'tf it;• ! . . 1'. ttl)t' -.4 yi - a,i .'1r, r- '1 - rr �L, 4 J(,, .{- yr ;I .r r, r:! Ir ,tr • •� •• r,.,_ :. .t`. € ]L,. ,,fr., .. ,,"r � � '!. •, , ?I ' !. ! I ;f. IJ r,, I ,.f�,l.r !' !f, rr,T, A) Grain straw or dry hay: Mulch materials which contain an excessive quantity of mature seed of noxious weed or other species which would hinder the establishment of desirable vegetation will not be acceptable. Any mulch material which is in an advanced stage of decomposition as to smother or retard growth of grass will not be acceptable. B) Asphaltic adhesive: Asphaltic material to anchor straw mulch shall be thin enough to be blown from spray equipment. It shall be SS-1 emulsion or RS liquid asphalt 1 or 2. 1.14 Seed: Furnish duplicate signed copies of a statement from vendor certifying that each container of seed is fully labeled in accordance with the Seed Improvement Association requirements for certification. This certification shall appear on, or with, all copies of invoices for the seed. Each lot of seed will be subject to sampling and testing at the discretion of the Engineer. Sampling and testing will be in accordance with the latest regulation under the Federal Seed Act. 1.15 Fertilizer and Lime: Furnish duplicate copies of invoices for all fertilizer and lime used on the project. Invoices for fertilizer shall show the analysis and the quantity furnished. Invoices for lime shall show the percentage of magnesium oxide and quantity furnished. Upon completion of the project, a final check of the total quantities of fertilizer and time used will be made against the total area seeded and if the rates of application have not been met, additional quantities of these materials shall be applied to make up the application specified. 1.16 Prior to or during grading and tillage operations, the ground surface shall be cleared of stumps, stones, roots, cable, wire, grade stakes, and other materials that might hinder proper grading, tillage, seeding, or subsequent maintenance operations. 1.17 Grades on the area to be treated shall be maintained in a true and even condition. Maintenance shall include any necessary repairs to previously graded areas. 1.18 All graded areas shall be thoroughly tilled to a depth of at least four inches by plowing, disking, harrowing, or other approved methods until the condition of the soil is acceptable. On sites where soil conditions are such that high clay content and excessive compaction cause difficulty in getting clods and lumps effectively pulverized, the Contractor shall use rotary tillage machinery, until the mixing of the soil is acceptable and no clods or clumps remain larger than 1- 1/2 inches in diameter. A firm and compact seedbed is required, and after being graded, the seedbed shall be lightly compacted with a land roller such as a cultipacker, before and after seeding. All tillage operations shall be as near on the contour as is practical, but in not instance up and down the slope. 1.19 Limestone may be applied to the area prior to the preparation of the seedbed, but in all Sound+view Park Keith P. BaUa, P.E. Seeding Schedule February 28, 2002 4.1 I 1 k' •r. r r i e.l }t- i t' t, !_ J r1.- 'rJ ,'-•t !vtl 'i1 Iis it tl �,.1 'J'.{ 1 .}�' a ..( :t - r•.. Jr F}I r lr ..I�� '1'. 'J{s .1I 1 .r I If.:111f: j' 3�. f'.y �r , ,r ,f.ff '!t r .! ')' . �l `i','f; '�•r• 't III,• ! C, t1Urrr -1, !: r -1 •� ita I...iil ' �;- 1 Ill r ; , r (s - l.' I ;T: s � 'rl�t'', � � fi 1 cl,.. ,�. {�,.. +.Uir .!• ',Ir_ , v' i ..r.k t.t- - 11 r r +.. r!'l, ' "!, r. ".rr ,r!'� 1 , •t;lif.! ,'J. 'i ' 1 {.E I `i.".,'1.1"'i! : 1 IA "liEi:'� - - {��r• _f �� c rt: I IJ �.. !if 'i 1 s� }:', �l'•,,�rl T t — ,•, I r V• r r s r; r ty ! r. is I a,. r -1,'. r4 ,i1 �, .III i. f1 i �J" , ... t r l fir. 1 , ! !'�f • . 41 ,,l'1'; lf21.+• { fl,. Vli., J ,� J_ ,fl 1.�1' i ."1' 'hi•..i;}�f,Ts,^ I '' ;I'.1`tr r'l."C.� 'J� '}II ",t"i j.jNI: f�''• kCSr .1`f;' �r�r r Orr, q'r 11 JI{!'. Ili 1.'. TITS. tillr .fir .r. jl, .ill' �l .1i ./; 11 (.• "+11:'r1 ter' l +, AC, 1• ! +l: ! ' I:C: !�r' tl n _f'" t!IiJ rW' I J yp }l' ram. . r s ,r!t' ., IWYIli:. n eL ova n, '1 r. ; p " "') •I' — GI. f ,tr 's"!�1 - - ' 4; r :'.- 1• .fr f, yr,11 r C•r r' , ",f>s'11 1 ' 't ::.J _ � ,1 ' `II.I',•diY,f:J' rl ' t �} . �J'f;l'� -f'`'• Jt, t e, .�I fr �' �� Jt I)i•.'� �! J.It,.. r�1 'll .Isf!.i)i1�ri1 ii '!"T,' I: !• _ ! , '. �� f. ! .,rir `l', , r 'J'r. ''t "ir. •J,� Ct,+: r, (-. Llf; , �°r* 1• r.=. .'� r3r' .,: 'r'r. r.,• ,�r 1 1 r r, :J�J y /';'Ft!,I;Jj' rlr .,r!, .` ft re: -!I 1;;�. ;c i 1 IL IJ' cases, it shall be applied before seeding and thoroughly incorporated into the entire depth of the prepared seedbed. The incorporation of the lime may form a part of the tillage operation specified above. 1.20 The fertilizer shall be incorporated into the upper three or four inches of the prepared seedbed. This can be done just prior to the last tillage operation or just prior to seeding, but in no case, will it be applied more than three days before seeding or before the lime is applied. Distribution by means of an approved seed drill equipped to sow seed and distribute fertilizer at the same time will be acceptable. When hydroseeding equipment is used for planting operations, fertilizer shall be applied simultaneously with seed using the above rate of application. 1.21 When conditions are such, by reason of draught, high winds, excessive moisture, or other environmental factors are such that satisfactory results are not likely to be obtained, the work shall be stopped and resumed only when conditions are favorable. If inspection during seeding operations, or after there is a show of green, indicates that strips wider than the space between rows planted have been left, or other areas skipped, additional seed shall be sown on these areas. 1.22 Straw or hay mulch shall be anchored in place by uniformly spraying the straw with the herein before specified asphalt material at the rate of 0.10 gallon per square yard. 1.23 The area shall be protected against foot and vehicular traffic by erecting adequate barricades immediately after seeding is completed, and by placing warning signs of an approved type. 1.24 The Contractor shall be responsible for the proper care of the seeded area during the period when vegetation is being established. In the vent of an erosive rain before an adequate stand of vegetation is established, damaged areas shall be repaired, limed, fertilized, seeded, and mulched wholly at the Contractor's expense. 1.25 The Contractor will restore all areas upon completion of project including the removal of sedimentation and erosion control devices and restoration of infiltration basins. Restoration of the basins will include restoring the basins to the design depth and re- seeding and mulching where the basins are disturbed. Soundview Park Keith R Build, P.E. Seeding Schedule February 28, 2002 _ '�I,-! .. .•I f :{'' � .. .. f ."i IY'V'. r `JI �1, r.l' l,II r.,�V, rim 'f1R3 1. 1 !. I r ' • .'i' I'r i�. • ' 1 'F.l r rr i'Iti . I'Iv ('(f1 fir. a. + . r .t. • '!) : ` ` :r. Ff:' ,, sly � ('; I ?' . . !' .. i � F r + ' • �J. -" ij, I .1, / ^(il 1'. r. :)�'._ rr ".t4 if, , ail • Ili . .r "F '1 .r + + ., , 'r 1, . .t � �.#�f"Ii + rI .'.trr . r. � !1 gill �7 . L' r 1f:I ,i'ri' ... rt ' }a. .'' fl ail la.,f, i� a.•'1:�( ,.-'• J I 'JJ' .. I ,I rl. .L. I-I,r� ' 7r ., n", '.t l` . .:,. Yi'. rr, �1 I l I —. �.�t'1, tfe . .• e;i :i" ., l !.: .,'i'.. f'�.hr�. is r '-r�7. 5f1 7ic:f� n ,. ..ti151 ��'i '.+V .i: 1. r l••r i STORM WATER MANAGEMENT NARRATIVE SOUNDVIEW PARK SURF CITY, NORTH CAROLINA RECEIVED MAR 0 4 2002 DWQ PROJ # PREPARED FOR: TOWN OF SURF CITY P.O. BOX 2475 SURF CITY, NORTH CAROLINA 28445 ��L r r • Y 10724 z P. BUS PREPARED BY: KEITH P. BULLA, P.E. 3202 BINFORD COURT WILMINGTON, NORTH CAROLINA 28405 (910) 791-4724 w w t or, i STORM WATER MANAGEMENT NARRATIVE SOUNDVIEW PARK SURF CITY, NORTH CAROLINA Project Description: Soundview Park consists of 13.011 acres of land adjacent to the Atlantic Intracoastal Waterway, Topsail Sound and North Carolina Highway 50/210 and located within the Town of Surf City, Topsail Township, Pender County, North Carolina. The site has 5.864 acres above the CAMA normal high water line. The adjacent water, Topsail Sound, is classified as SA-ORW. This property was originally a mobile home park consisting of seven mobile homes. Each of the mobile homes included a concrete patio and/or wood decking and gravel driveway. The mobile home park was accessed by an existing gravel road within a 30-foot ingress, egress, regress, drainage and utility easement. The property was acquired by the Town of Surf City to be developed as a park. The proposed plan is to remove the existing trailers and utilize and extend the existing gravel drive and add vehicle and boat trailer parking, walkways, fishing pier, boat dock, boat ramp and restroom buildings. The boat ramp is to be constructed by the North Carolina Wildlife Commission. The additional gravel pavement and building construction will require a minimal amount of clearing. The site will be serviced with water and sanitary sewer from the Town of Surf City. The site total built upon area for the site utilizing the acreage above the CAMA normal high water line is calculated to be 19.4%, normally requiring a low density storm water management permit from the North Carolina Division of Water Quality (NCDWQ). However, this project has been determined to be a pocket of high density and will be considered by NCDWQ and will require development as a high density project. Storm Water Management: The storm water management for the project will be accomplished with the establishment of a 30-foot wide vegetative buffer around the perimeter of the site. During construction, silt fences are to be constructed around the site to manage runoff. Also, for long-term management of storm water runoff for the project, ten individual infiltration basins have been designed and will be constructed to capture greater than the first one and one-half inch of storm water runoff from each rainfall event in accordance with the NCDWQ requirement to provide an equal or better storm water control measure for the site. The infiltration basin calculations are enclosed The basins have a storage depth of 6-inches to 12-inches deep with 3:1 minimum side slopes. Eight of the basins (1 4 and 6-9) have been provided with a 50-foot wide overflow spillway. The remaining basins (5 and 10) are located within the parking and access areas and are designed to overflow around the perimeter of the basin's drainage area and sheet flow to the other eight basins. The 50- foot width of the spillway and the 6-inch spillway height discharging to the spillway slope of 5% or less will minimize discharge velocity to below an erosive level. tf)•7' t„ ""A; Poo J •.i ;.11.. r .. S f. rf' ' S"_; jl.�r:!•: �+.r ' � � ,�;:ri �, ; I£' �� l .I ' t+ +. ! i!r ��4_ , + SP' 1r)r''�-1; '. '+ii! I•,f' ;I iJ �f L'� }'�.t;a' 'if i+! �f .,. ,.. „ir t I "f .�!!: I•; . i' ti •! i + 131 tli r �• , I It +i11 +• , �I t - } ; - i > F.1:' `r_ , - - ,rT J• Ilf' ' ,�_'r, f. ,a. r+�' • - r. �r.•J! '. ,�� '1 i ;I ' .r' } I fit' ,+, 1 " Oi. r7 it �..J''+.1 (; 17I .r :f r' .� :i, ' - i 3 't AL 1 h, .11f wart � Cy , J k" 1i,.:L 1 ,rl_ f�,+.�-I yl4 Y.�r +C� ', . bloci, ! ' !.,`' .'f. r.'i�]Z .J;�'• " i� f' "'I-3 4J` ' ,� //•, I + �; 4i r' .L.•r f' r JC`+II C` ,LF.' !� r� 1: 'f :d t� � ..•,F]� �. .ir 1�{: ij�. f t.. ;_4,r<,=, . �lf �� 1.. ' ,,•I %' - r.# :1 ,' rl,r`I r;t �f'; ih. I '..,'1 i e r��f I. ! .. 't! .!f ''! I 1' f ..fJ.. � r� _ .il �. '!i� ..; 1_n 1 + ..! 4 + 'I' .r' '1. � . ,f r.j, - � t• (.r � ! j.� fl'il i..r !J•��t �if �. '' in, .al: �J. .,, ' �''� �1+.� h{yl_ e. 'r'. !f e- .I F .', 1.', ( ' f r�}E 1,«' •'11 •J' . �1 .. i•. I�I, . • •.I� r _. ��'•'�� .. -'. I f� i(.. 41�. � "T'- 1+. �� rif :;! 'J••,' r': � 'Jrikl ,l "i•. }[f .,y� + I-(f 4.+j j,,lr) •r' r!� lire �.({'IY I�if.+� �:, } .' ( r'+.'II�E/'fi� (l' .i � + .�' ', .'• J'E+ . J.'�' il! ( rl.' .I - 'I i � ft,.l �l��f. i+ .• �� l.L � 1..",' .(, • j�11Ctr ' 1 :�'t';!i I. 4'�r:LP 'a' i / f, +r' .. .•+: _ , .. ;�1ifi �, 1rr4 { +,111:f !r. �rR i�l'�tl:'E�i ^t li.'•.�ltC'� "..E'..�F -.r. I11+' , IJf ,f+'t' .r�I LJ (,� jii + Ir' rll'� _ �.. �!• i. i� .rr .-.} .', •t +' r' ! l t I 'J.. �}' ' E. �L` 41 .. J r f�t�' • .. • iJ• .1.� 'i ITr „ II :rl' f ,tl.f `��r+.j' . 14 C;1 rl•t -.--L +i l ;�+ ht{ ;+' Jr ( 1 `'If,• �l, r rrrl F Ij• ,'� �, r��i'" , , r er, 41' , \.it z Y: v.. i :4,-�. I r,�Yrff it i' A site soils investigation determined the soils to be sand with an infiltration rate of greater than 6-inches/hour. The soils report, prepared by Eastern Soils Limited is attached. The existing seasonal high water table was determined to be between 14-inches and 18-inches below the existing ground surface. :l;I`a(:Jt`-1-.1:�•�� .. 'f.:! f` �y �r �r !f ,. i!i`p ;'1lT'i� ;� Ji�r �. �i+, �•.Y :; I if ,l.•ll �'' Permit No. (to be provided b.y Uti4,'Q) Slate of Nortli Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERM.iT APPLICATION FOIZM LOW DENSITY SUPPLEMENT This form uray be photocopied for use as apt original A low density project is one that meets the appropriate criteria for built upon area and transports stormwater runoff prirnar•ily through vegetated conveyances. Low density projects should not have a discrete stortnwater collection system au; defined by 15A NCAC 21-1 .1002(18). Low density requirements and density factors can be found in 15A NCAC 214.1005 through. 1007. 1. PROJECT INFORMATION Project Natne :-�1'�tzl1C��/LP�Z ` o'-r L- Contact Person: RL6 110tA,. �76A4L S Phone Number. !1 10 $28' y131 Number of Lots: l Allowable Built Upott Area Pci- Loi*:_ • 320 A, /4 20 --e� Ptl- *If lot sizes are not uniform, attach a table indicating the number of lots, lot sizes and allowable built upon area for each lot. The attachment must. include the project name, phase, pc;e munibers and provide area subtotals and touds. It. BUILT UPON ARLA See the Stornrwater Management Permit Application for specific language that must be recorder) iti the deed i restrictions for all subdivisions. For uniform Iot sizes, complete the following calculation in the space provided below where: • SA Site Area - the total project area above Mean High Water. Wetlands may be excluded when the development results in high density pockets. • DF Density Factor - the appropriate percent built upon area divided by 100. • ftA lZoad Area - the total impervious surface occupied by roadways. • OA Other Area - the total area of impervious surfaces such as clubhouses, tennis courts, sidewalks, etc. No. Lots - the total number of lots in the subdivision. • 13UA/Lot - the computed allowable built upon area for each lot including driveways and impervious surfaces located between the front lot line and the edge ol' pavement. a term SWU-104 Rev 3.99 Page t of 2 'i (SA x l)li) - RA - oA = BUA No. Lots Lot Calculation: SA = 5-. 8I-q "5A,eOF) -)eA -OA - -Ru A IF - zs - Ne, Le,4s Let RA: oA- . 67gAC, yZY- .67y 1 �bT III, RL+4 QUIRED TI I;MS CHECKLIST Initial in the space provided to indicate that the following requirements have been inet and supporting documentation is provided as necessary. If the applicant has designated an agent on the Stornrwater Management Permit Application Form, the agent may initial below. Applicants Initials j_ a. A 30 foot vegetative buffer is provided adjacent to surface waters. Projects in the Neuse River basin may require additional buffers. b. Deed restriction language as required on form SW U-101 shall be recorded as a restrictive covenant. A copy of the recorded document shall be provided to DWQ within 30 days of platting and prior to sale of any lots. C. Built upon area calculations are provided for the overall project and all lots. Ic d. Project conforms to low density requirements �x-ithin the ORW ACC (if applicable). [I5A NCAC 2H .1007(2)(b)] :otm SWU-104 Rev 3.99 Paige 2 of 2 VA _5—M-i 87PA55 LINE To -- - veGE-raTEv FiL-rVR �I TO TREN_GH OR BASIN PLA 1 J )FUnoff SECTION A -11 r; GRATED TUP RuwUFF NCB-! ore &4SIAl