Loading...
HomeMy WebLinkAboutSW8950711_HISTORICAL FILE_19950810 (3)STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW8 q 5 0 7 DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE 1995 02 11) YYYYMMDD I <o State of North Carolina Department of Environment, Health, and Natural Resources Wilmington Regional Office James B. Hunt, Jr., Governor DIVISION OF ENVIRONMENTAL MANAGEMENT Bob Jamieson Jonathan B. Howes, Secretary WATER QUALITY SECTION Regional Manager August 10, 1995 Mr. Walter O. Winter Cardinal Associates, LLC Post Office Box 5601 Wilmington, North Carolina 28403 Subject: CERTIFICATION OF COMPLIANCE with Stormwater Regulations Stormwater Project No. SW8 950711 Cardinal Trade Center New Hanover County Dear Mr. Winter: This Certification is pursuant to the application for Cardinal Trade Center received on July 24, 1994. Staff review of the project plans and specifications has determined that the stormwater control system as proposed for Cardinal Trade Center will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.1003(i). The runoff from 89,088 square feet of impervious area will be treated in a detention pond sized to achieve 90% reduction in Total Suspended Solids. Any modification of the plans submitted to and approved by this Office or further development of this site regardless of the fact that the modification may be less than 1 acre, 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, change of owner address, redesign of built -upon surfaces, addition of built -upon surfaces, redesign or further subdivision of the project area. This Certification shall be effective from the date of issuance until rescinded. The project shall be constructed and maintained in accordance with the plans and specifications approved by the Wilmington Regional Office. This Certification does not supersede any other permit or approval. The developer is responsible for obtaining any and all permits and approvals necessary for the development of this project. This could include the Division of Coastal Management under CAMA requirements, the Division of Environmental Management under Wetland 401 Water Quality Certification and/or a Dredge and Fill Permit and/or a Sewer Extension/Collection Permit, U.S. Army Corps of Engineers 404 Wetland Permit, NPDES Stormwater Permit if disturbing five acres or more, local County or Town Agency permits under their local ordinances, or others that may be required. 127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone 910-395-3900 • Fax 910-350-2004 An Equal Opportunity Affirmative Action Employer Mr. Winter August 10, 1995' Stormwater Project No. SW8 950711 A professional engineer must certify that the stormwater system has been installed in accordance with the approved plans and specifications upon completion of construction. The attached certification must be received in this Office within 30 days of completion of construction. The detention pond must be constructed in it's entirety, operational for it's intended use, and permanently vegetated prior to the construction of any impervious surfaces proposed as a part of the project, except roads. Failure to construct the stormwater controls as approved is considered a violation of this Certification. 3900. If you have any questions concerning this matter, please call Ms. Linda Lewis or me at (910) 395- Sincerely, Dave Adkins Water Quality Supervisor DA/arl: S:\WQS\STORMWAT\CERTIFIC\950711.AUG cc: Jim Honeycutt, P.E. Alan Golden, New Hanover County Inspections Bradley Bennett Beth Easley, New Hanover County Linda Lewis Wilmington Regional Office Central Files Y DIVISION OF ENVIRONMENTAL MANAGEMENT PROJECT DATA Project Name: Project Number: Location: Applicant: Mailing Address: Submittal Date: Water Body Receiving Stormwater Runoff: Classification of Water Body: If Class SA, chloride sampling results: Pond Depth: Permanent Pool Elevation: Total Impervious Surfaces Allowed: Offsite Area entering Pond: Green Area entering Pond: Required Surface Area: Provided Surface Area: Required Storage Volume: Provided Storage Volume: Temporary Storage Elevation: Controlling Orifice: i :v Cardinal Trade Center SW8 950711 New Hanover County Mr. Walter O. Winter Cardinal Associates, LLC Post Office Box 5601 Wilmington, North Carolina 28403 July 24, 1994 Bradley Creek "SC HQW" N/A 7.0 feet 38.8 MSL 89,088 square feet N/A 15,692 square feet 3,802 square feet 3,850 square feet 7,443 cubic feet 7,509 cubic feet 40.43 MSL 1.25" pipe WET DETENTION POND EVALUATION 1. Yes No The design storage is for the runoff from all impervious surfaces resulting from 1-inch of rainfall and is located above the permanent pool. 2. Yes No The permanent pool is designed for 90% total suspended solid (TSS) removal. Therefore, no vegetative filter is required. 3. Yes No The runoff completely draws down to the permanent pool in 5 days, but not less than 2 days. 4. Yes No The mean depth of the permanent pool is a minimum of 3 feet. 5. Yes No The inlet structure is designed to minimize turbulence and short circuiting. 6. Yes No An appropriate operation and maintenance plan has been provided for the System. 7. Yes No THIS PROJECT MEETS THE STORMWATER CONTROL REQUIREMENTS OF 15A NCAC 2H.1003 (g), (i), (k), and (1) (For Yes, 1 through 7 must all be highlighted Yes.) Brief Explanation: This detention pond is designed to remove 90% total suspended solids without the aide of a vegetative filter. DIVISION OF ENVIRONMENTAL MANAGEMENT SIGN -OFF Wilmington Regional Office Date Individual Evaluating Form/Plans Date Regional Water Quality Supervisor cc: Applicant/Bradley Bennett/arl/WiRO/CF Cardinal Trade Center New Hanover County Stormwater Project No. SW8 950711 Engineer's Certification I, , as a duty 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. Signature Registration Number Date DIVISION OF ENVIRONMENTAL 11TA.NAGENIENC DENSITY ENGINEERED V— PROJECT DATA Project Name 7Qa0__ir G6'N rCle _ Location (County, Township/Municipality, Address, State Road) N6rV M412OveA LARD�dkc A.t if,XrE�v�inn/ Owner's Name Glpgp�aac Ii}iOGi.�rrs 6 L G MailingAddress DOB .SGo/ Wf lA „r s-POA✓ N c 111Y0.3 Phone Number q/0 -7 4 9- 92 C. Y Submittal Date��g� Brief Description (include map and appropriate drawings) As6it/�rrr�raa4sp Name of Water Body Receiving Stormwater Runoff 139A"P LE�f CfZE-EK Classification of Water.Body S C 140V✓ 'If SA waters, engineered system, and distance is <0.5 miles, attach report of chloride sampling results mg/I State/Federal Permits/Approvals Required (Check appropriate blanks) CAMA Major Sedimentation/Erosion Control 404 Permit DEM/DHS Sewage Disposal Other (Specify) CALCULATION OF BUILT UPON AREA Built upon area means that portion of a development that is covered by impervious or partially pervious cover including buildings, pavement, recreation facilities, gravel, -etc., but not including wood decking. If the project includes areas draining to different water classifications,.please note them separately below. Subwatershed Subwatemlied . Classification 5 C. Built upon area 2, o S RcRE Total Project Area 2 . 49 ficRE % Built upc i Area 5 2 • t Allowable B/U Area 0.747 ACKF Is the Project B/U Area 5 the Allowable B/U Area?., N 0 ' ' of no, an engineer SI'ORMWATER COLLECTI( 'N,SYSTEM Describe how the iunoff will be treated /.)FT ?ON%% ed nrf0OfficZruse6nIy—'.-----.­ Ke FaaL6 JU& 2 4 1995 VrxoJ 9 i BLFFER AREA Is the built upon area at least 30 feet from mean hi& water of all surface waters? YjE�j If no, please provide a description (Note: Only boat ramps, public roads, public bridges, and walkways to water related facilities are allowed within 30 feet of the. mean high water line if the project is intended to meet stormwater control requirements through density limits.) I , DEED RESTRICTIONS AND PROTECTIVE COVENANTS By my signature below, I certify that the recorded deed restrictions and protective covenants for this project shall limit the allowable built -upon area per lot to A(ZX square feet inclusive of right-of-way, structures, pavement, walkways or patios of brio- stone, or slate, not including wood decking, state that the covenants will be binding on all parties and persons claiming under them, that they will run with the land, and that benefits may be enforced by the, State. of North Carolina, therefore, the covenant cannot be changed or deleted without consent of the State_ CERTIFICATION I, V\IQ1�-e.CO- winliY_( , 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 requirements of If; NCAC 2H.1003 (b). I authorize the below named persoe or firm to submit stormwater plans on my behalf, and agree to abide by the deed restriction statement above. 1�1s` 6D`a .:ul�r 20119�5 Owner's Signature Date 7— Provide authorized person or firm name and address below: I-fo/JCYCv77_ EA161A10ER/A/6 60, P>0.470K 15-036 cvlLMrnl67bN,� A/C St84og 9l0.3:5-n o63I allo rublicfortheStateof Nm-A- � I,�Cc�a\le �i., V�lucd tary: nc-o\:r-40. County of Nf*1 1-lnr 6oe-c. do hereby certify that 1/�U1,�e_C(-)• \'/411JAP( personally appeared before ma ` this O day of , 19 C _, and acknowledges the due execution oftheforegoing instrument. Wit n my hand and official seas, o* AA ­ 'Date Individduual Evaluating Forms/Plans Date Regional Water Quality Supervisor cc: Applicant/WiRO/Bradley Bennett/Central Files I _ - Drainage Calculations for, Cardinal Dr., Wilmington, NC Project 5042 7/20/95 q total :- 108630 ✓ q total = 2.4938 acres ...total area 43560 • paved := 54816 r/ q paved = 1.258 acres ...paved area 43560 q side = 3264 ✓ A = 0.075 side acres ...sidewalk area 43560 q bldg = 31008 A bldg = 0.712 acres ...Total area of buildings 43560 q imp q paved + q side q imp = 1.333 acres - total impervious area excl. bldgs q other q total - A imp - A Bldg q other = 0.449 C pre :_ .20 ...pre -development C C bldg 1.00 C imp :_ .95 ...paved area C A imp C comp I C preothertal + C imp �q total ) + C bldg `q bldg total 1 C comp = 0.83 ...composite C (post -development) L :- 750 ft H := 3 ft 3) 385 - (128 H Tc ...hydraulic length ...height T c = 10.71 minutes ..time of concentration Intensity -Duration -Frequency Relationships: Values of G and H* R G H 10 252 30 50 338 33 R= Return Period *Source: Master Drainage Plan for City of Wilmington ECEoVEU JUL 2 4 1995 D.EM rxoJ # SLu 9 950't �oo`�N CA Fj 'N,% 1�1 �' f Q, v 'y *t4 SEAL *_ ll 9524 �s QF '•yyc�s'�:yGINIf M�e'� �• -7 U.fi vi.i'ftfeili i'e vJ A3 KNOGO.. v"', arloi3Eiu'z;vJ :iufirlimc ?.( ORY 210.1 WS019 Q@1S!E'rli... 391^S SON! = . A !gotUt c,c,nt Ui.vo+! I , !MCI beau of Bud 4}4m ."` . - :. sveq f\ Oak- 6516 rii6'✓✓SDi2... ..� i✓ci Z O.G - 9i)lu r'' +7�c - 9b12 ^. agni )liud to czeis i3iU I ... _?r_ _ C 17.0 _ UU!0 ' i (f 1 �:A 2Dtifu .IJX� p91,•; �!ICii\negmi IsJGJ -?31:i6 CU. f = r, ri Jt:II obia VqV IJ'J Zi,-i h Pb.G == ! F F, i l7ti)V vii+ ii , ; n:G �, i!v 02. v!y, bevEq... A I :{!!:I AA\ 1 .. ` ... ' '1 MOO,,y61UU etat Istot Info;'" qaw It Day 1 ;tint it... It c - H J , L ! Fi _, J 1 bSP i I FVL'Li 1!t l"JJIIQJ Ii�7!I I!J... G`.�1.11!tl!! I1-' .V1 r - n J I T !"I a 9 i_. SEE or bs SEE _Ec Nc f!UJ71 inflib'V io VK'1'!07 1IEi 1 9(.151'.!Sl ''19)8c11!'! :emuoF, T := T c Time of duration G to := 252 H 10 := 30 C' 10 110. (H10+T) 110=6.19 G 50 := 338 H 50 := 33 G 50 150 (H 50 I T` Compute runoff rates: Page 2 in/hr ...10 year storm intensity 150 = 7.733 in/hr ...50 year storm Q pre C pre' 1 10'A total Q pro = 3.09 cis ...pre -development runoff from 10 yr. storm Q 10 := C comp' 110'A total Q 10 = 12.8 cfs ...post -development discharge rate from 10 yr. storm Q 50 = C comp' 150'A total Q 50 = 15.99 cfs ...post -development discharge rate from 50 yr. storm Volume of runoff from developed area of site: P := 4.8 in Soil type = Seagate CN := 70 Curve No. S:=(1CONO�-10 S=4.286 (P - 0.2•S)2 R depth P + .8• S R depth = 1.889 in. R Vol R depth' (A total-43560.11 2 R vol = 17103 cubic feet ...total runoff volume T R depth' (A total) W 43560• 1p 1.39•(Q 10) 60 T p = 16.02 ...time to peak flow ...runoff depth 2 geaq nmA%emiT ;T:T ae-7a S Or ±� Am�o ,myw. T H y.aa ye 7@ S® q�%m,sek,a. : .EGJ:-! - ----e� a ��lm2Eyga � o »0 9 S _a.nz a eb 9. yz= O Imo,«gnqmooa gc mo A 2moil etm yb r a my.eto %2= g o ao » y a #el Rmb veb- 9a1=y o «»%sg«wmmelne &guhv ni a.! g +== J ba ua S : Ea e Jg 8! ritq,eh mn . » AKA - %5 J�GyR.yyA, ag ;aW .3mWov » wa.r l » Q c: e aaa\r, wr®2ritaeb rI PIRG dV, Determine size of 7' deep pond without vegetative filter: Page 3 IMP% := A imp + A bldg IMP% = 0.82 A total IMP% S0 :_ .034 IMP% g0 :_ .039 IMP := IMP% 80 + IMP% g0 - IMP% 80>•.2 IMP = 0.035 DA := A total•43560 SA := (IMP)•DA SA = 3802 Determine storage volume required for treatment of first Inch of runoff: C comp = 0.829 V := 12 A total 4358o• C comp V = 7508 cubic feet Assume 110' x 36' pond. Solve for depth "d" to provide required storage: 1 := 110 w := 35 w• I = 3850 d := 1.5 ...guess value I•w+(I+6•d)•(w+6•d) f(d) := 2 d ...function of d for rectangular pond w/3:1 side g (d) := V slopes d := root((f(d) - g(d)),d) d = 1.63 ft. - depth required to provide required storage for 1 inch Q 2day '= 2.24 60.60 Q 2day = 0•0434 cf:...Max discharge for 2 day drawdown V Q 5day '= 5 24 00.60 Q 5day = 0.0174 cis ... Max discharge for 5 day drawdown g := 32.2 h:=� h=0.815ft Q 2day Aorifice ;_ C d,(2.9•h).s C d := .6 ...orifice coefficient ...avg. head A orifice = 0.01 Square ft. &e9q m#Rs m!7_ mogwbmgqeebi to esiemim o ae=29w bid A 2A= »qw Islot J%-,8f g Jam; g�«gy y «qQ,.a Jg¥=sk aEu=gy q3l.1 1A AC AG 4qw) gy= Aa #m@ e dmlrRb mS 90101 @ @q mn@e «im o Oslo- qnnms y+a@yy«J. g.%V :eL)fiole beiftipai k. 9 m ±" A,¥,3vI oa: SEx'Ott qm uaA aw=�« a-w wr=i mw@ asaug. Q - i . ^��®����� -� ebtP b9 +�, m meaner w b10,:v-<------tRx ar a` v: & % ¢J3m-A#0A@=b %&; lrjl q m i9e� ;dt. e ilqeb- e1'-6 _� h9h;� ambxl.m «60= 20 --\�� _7«0 aaS 3 baba= Rmbay.8 o ga z® © . Memo»+y.El. .ba wW.Q6. # ma 00=»w,A reE\=! /=a :SAW : e y y\f y&2 5 D := 4. A onfice 12 D = 1.354 in. - for 2 day drawdown 3.14 ) Q 5d9y = 0.0174 cis A orifice Q 5day 5 A orifice = 0.004 Square ft. C d,(2,g.h). 5 D := 4• A orifice 12 D = 0.856 in - for 5 day drawdown 3.14 , Use 1.25 inch diameter pipe in routing chart Check capacity of emergency spillway to pass 50 year peak flow: L := 16 ft ... Length of weir H := 12 ft ...Driving head C w := 3.0 ...Weir coefficient Q := C y( L• H1.5 ...Weir capacity Q = 16.97 must be => Q 50 = 15.99 O.K. Using a 12" barrel, check velocity at outlet: D := 1 ft q := 4.91 ...max barrel discharge from routing sheets A pipe = n 4D' A pipe = 0.785 Page 4 V outlet A q V outlet = 6.25 fps pipe Determine outlet apron dimensions and riprap size for discharge from pond: From Figure 8.06.b.1 and Figure 8.06.b.2 choose Zone 1. L a 3• D L a = 3 ft - minimum length of apron from figure 8.06b2 W := 3• D W = 3 ft - minimum width of apron from figure 8.08b2 dia 3 diameter of stone in inches t := 12' thickness of apron in inches REFER TO ATTACHED SHEETS FOR ROUTING RESULTS Note: References to chart nos., table nos., and page nos. refer to Erosion and Sediment Control Planning and Design Manual unless noted otherMse C�6gW.A.1t CC)lJjL01 b191JUIUG 9Ui] 1')621au A9Uf131 I)U1682 UOjGU 0j).lE•U;V2G i;: „a,c'SLlC c n ro lci r 1-ton" igr'•IC uca" :- luq bjan— -..}2' L6, _: ul. r_, v2f(-.11 th in �E'LE- 1.0 V/' I V C H E 0 2HEE.1.2 EUIS 1'0111110 IiE2n .L2 t J WIC 'U622 01 abtoU Ill; !ucUe2 4!III15LU646L 01 2j0L'G ill) IUCP6^c r'`A, • L' jyA _ 4 - WIU!LGiIW M"'iIJ Ul ybLOU 1U]:11 11Uf1LG f? CePj F - ^Y• `j ' 0i 9Ciiou _!J }(%7i1L6 d c�HJ _Id LLG O'QG'�'.j 3Uq lrtQiiL6 Q'QE''J' cuooaa roue De-ro UJIUb onvo: HbLOU Qlwe—UMU8 9UO• UbLsb 21SO tOL {712CU 1f16 1LOW botia: h:hr- 0^nor t' nrr 0 0 - 1 d ... WSX PSLLS! QI2C J8Laa8 1LOUJ LOMIUd 20168t2 ( n 1 !! 112EA14 .�'+ S j�, jSaLuol ijJO.^.li -12j ,.+'-'b 22 do lJ n n5 AA. f tt "'AAGIL csbscltl 111 Li - 1f ... rti,!All fL9 }iC.rC I' = J{a ii "i UUJ1J O! r:5�4 CU6r6_ cghsrf�A Ol C-we-LPk-u-CA -h llmgN Kc. bv2l Lc Aein bc-gw jpm: `12{�+ i "a lU+�L UPLL'_=i L tilr�b .--UNILIU 911t n J `3 rCi I :.� L' 11 C it! ' ff nl I,�If OUjIC6 _ tt'1 i:t ?dn31a.1: lei rya:; J vqs iI 0 - _ O'0451 c1 f �i_71 ,:.. r.., L7 --- 3 0 }0L Us;`. co ^ny ✓fr.v ti ^U:~C6 S Z CONTOUR [NCR ACCUM CONTOUR AREA VOL VOL STAGE In S In Z Z ast 38.80 3850 0 0 0.00 0.00 39.30 4294 2036 2036 0.50 7.6187 -0.6931 0.51 39.80 4756 2263 4299 1.00 8.3660 0.0000 0.98 40.43 5364 3188 7486 1.63 8.9208 0.4886 1.59 40.80 5734 2053 9539 2.00 9.1632 0.6931 1.90 41.30 6250 2996 12535 2.50 9.4363 0.9163 2.48 41.80 6784 3259 15794 3.00 9.6674 1.0986 3.03 42.30 7336 3530 19324 3.50 9.8691 1.2528 3.61 Regression Output: Constant 8.38668 Ks-- 4388 Sid Err of Y Est 0.029838 b= 1.15 R Squared 0.998808 No. of Observations 7 X Coefficient(s) 1.154053 Sid Err of Goof. 0.017832 ; a a# mm gm»oo m= 39 ax 3 A ; am g7 ammo= es ! a 9w; as < = a : r- e+ e5 ! E3 q4 2 e> 3+ +! ,a i ; SW E2 aA & ! m. &< e 92 ®a ea 2 � E a » E zr mz , s as M a + a e: C: a2 02 a o E ; e 3018-802 a m as < . wm»m 90 Cl ma » qb1p, STAGE -DISCHARGE FOR RISERIBARREL SPILLWAY WITH EMERGENCY WEIR RISERBARREL: 7.5 Dr = 3.516 Area of grate openings Etop = 40.43 Elev. top riser (ft) Cwr = 3 Riser weir coefficient Cdr = 0.59 Riser orifice coefficient Do = 1.25 Orifice dia.(in) Einv = 38.80 Elev inv. orifice (ft) Co = 0.6 Orifice coeff. Db = 1 ft. Binv = 38.80 Barrel invert Cdb = 0.6 EMERGENCY WEIR: Cw = 3 Weir coefficient Ecr = 41.00 Elev. weir crest (ft) Lw = 16 Weir length (ft) 1 2 3 4 5 6 7 8 Stage Riser Riser Barrel 1.25" Princ, Emerg. Total (weir) (orifice) orifice Spillway Weir Outflow [ft] Ids] Ids] Ids] [de] [cfel Ids] [del 38.80 0.00 0.00 0.00 0.00 0.00 0.00 0.00 39.05 0.00 0.00 0.00 0.02 0.00 0.00 0.02 39.30 0.00 0.00 0.00 0.03 0.00 0.00 0.03 39.55 0.00 0.00 0.00 0.04 0.00 0.00 0.04 39.80 0.00 0.00 0.00 0.04 0.00 0.00 0.04 40.05 0.00 0.00 0.00 0.05 0.00 0.00 0.05 40.30 0.00 0.00 0.00 0.05 0.00 0.00 0.05 40.55 0.94 5.77 5.00 0.05 0.94 0.00 0.99 40.80 5.06 10.13 5.35 0.06 5.06 0.00 5.12 41.05 10.98 13.11 5.67 0.06 5.67 0.54 6.21 41.30 18.26 15.53 5.98 0.06 5.98 7.89 13.86 41.55 26.67 17.62 6.27 0.07 6.27 19.58 25.85 41.80 36.08 19.49 6.55 0.07 6.55 34.35 40.89 42.05 46.39 21.19 6.81 0.07 6.61 51.64 58.46 42.30 57.54 22.76 7.07 0.08 7.07 71.15 78.22 42.55 69.45 24.24 7.32 0.08 7.32 92.63 99.95 42.80 82.09 25.63 7.56 0.08 7.56 115.92 123.48 ?It 3,rV it iV,JV)l JiY11'll1w\ti �IJJIrl'i .IJI�%i i'\l:'111.� Vt 1. ?YJ 1.l I%\1 JUt t. 1d.-�,I :l99 8'1799,?1R 7 C 1,. 1 aoninGgo G;G I0 410 S� A 8r�".E _ 10 ?f 19i7ii��ai }i Sir ":92i7T � _ }'v'vv i^eLidlt3aD 'r�ii!}a }92i S'i cd.G - }��) (+9) 93itn0 vrn vela 08.8E = n19 i19Uni I' t}8 C.BE - .nit1 8 O .: IIJ V'J lVI-ICl/1,1'l.3 11SW W. 1 IOIa� .�}elll� .JI :11�1 tJ.�.' il}tOU n 17aIr1 n iCJ'. 111 o jI./OlU woWul 'new �GWliq? e ;;;a (e�)itna) Oigw•) vi ? " (24n1 fill G(1.0 UU.0 C10.0 00.0 00 00.0 OO.0 Da FIE c0 0 0o n 00 0 r'n n On n no o oG n =n pi: ((Jr n�. nnn r-nn nnn nrr rn r• nr pc 4W..0 QCLG OC D A0.`; OU O 00.0 U0.0 ;40 n rut n Oo o On 0 G8 e): °r} f ,.:..J n'• n DOL n�. ry 'Jv.:. G:fI r, u JV.V n n Gv \J �f ..- t.J J- 2(0.0 00.0 00 0 d0.0 00.0 00.0 00.0 OE.OA p'P,n nO.C% =•(? n i.v n nn C'. C1 C AP. (? ? i:== n. �: .G nI}n v'-.v ••nn w.t. ^r)n. ii•., ... xn t..:..'.. Ct n� VI J: n-, iJu.0 rn n. '.iv.v-• ngEr @fs' an0 itlC Co JC..: ( ot, U, BF, 84Yp {' (?,. Pr.( 1f, E!R,c' QC].C1.8 08Cc DISCHAR01E 39.1 39.3 39.0 39.8 40.1 40.3 40.6 40.8 41.1 m 41.3 f m 41.6 41.8 42.1 42.3 42.6 42.8 n O Ic m m a 61 m S mm 3:1AAHJntra 0 0 n m [L� na V Ili 92 CO r, T Q !1 f!i DISCHARGE 38.8 39.3 39.8 40.3 40.8 41.3 In 41.8 1 42.3 42.8 c� alt 1C0 150 2.tU"E •G C:: tU C: C 'A UI IIE.1. 21.I.VeE DIOC14V"C:E CHAINSAW ROUTING Input data: Qp= 12.8 RESULTS: Tp= 16.0 OUTFLOW PEAK= 4.96 MAX STAGE= 40.99 dT= 1.6 Ks= 4388 b= 1.15 7.5 Etop = 40.43 Top of riser Dr = 3.516 Area of grate openings Db= 1 Binv= 38.8 N= 1 No. of orif. Cd= 0.6 Orifice coeff. D= 1.25 Dia. of orifice Zi= 38.8 Inv. elevation Cw= 3 Weir Coefficient L= 16 Length of overflow weir Zor= 41 Elev. of overflow weir 1."1= l:�b;: t�uti�LItiU� U= JC Lla L'F U(. 11yJ d=. 1.Itov:_ -r �r Kr= tat 3 %HVx 2.LV(J` lt`. t20 on II-MAAhEVK= dE 1 2 3 4 5 6 7 8 TIME INFLOW STORAGE STAGE OUTFLOW ORIFICE WEIR RISER/ [min] [cfs] ICU ft] Ift] Icfs] Icfs] [cfs] BARREL 0 0.00 0 38.8 0.00 0.000 0.00 0.00 1.6 0.31 0 38.80 0.00 0.000 0.00 0.00 3.2 1.22 30 38.81 0.00 0.000 0.00 0.00 4.8 2.63 147 38.85 0.00 0.003 0.00 0.00 6.4 4.41 399 38.93 0.01 0.011 0.00 0.00 8 6.39 822 39.03 0.02 0.018 0.00 0.00 9.6 8.36 1433 39.18 0.02 0.023 0.00 0.00 11.2 10.15 2234 39.36 0.03 0.029 0.00 0.00 12.8 11.57 3205 39.56 0.03 0.035 0.00 0.00 14.4 12.48 4312 39.79 0.04 0.040 0.00 0.00 16 12.80 5507 40.02 0.04 0.044 0.00 0.00 17.6 12.50 6731 40.25 0.05 0.048 0.00 0.00 19.2 11.60 7926 40.47 0.23 0.052 0.00 0.17 20.8 10.27 9018 40.67 2.64 0.055 0.00 2.59 22.4 9.02 9750 40.80 4.68 0.057 0.00 4.62 24 7.92 10167 40.87 4.79 0,058 0.00 4.73 25.6 6.96 10467 40.92 4.87 0.059 0.00 4.81 27.2 6.11 10668 40.96 4.92 0.060 0.00 4.86 28.8 5.37 10782 40.98 4.95 0.060 0.00 4.89 30.4 4.71 10822 40.99 4.96 0.060 0.00 4.90 32 4.14 10798 40.98 4.96 0.060 0.00 4.90 33.6 3.64 10719 40.97 4.94 0.060 0.00 4.88 35.2 3.19 10594 40.95 4.90 0.059 0.00 4.84 36.8 2.80 10430 40.92 4.86 0.059 0.00 4.80 38.4 2.46 10233 40.88 4.81 0.058 0.00 4.75 40 2.16 10007 40.84 4.75 0.058 0.00 4.69 41.6 1.90 9759 40.80 4.68 0,057 0.00 4.62 43.2 1.67 9492 40.75 4.16 0.057 0.00 4.10 44.8 1.47 9253 40.71 3.37 0.056 0.00 3.31 46.4 1.29 9071 40.68 2.80 0.065 0.00 2.75 48 1.13 8925 40.65 2.38 0.055 0.00 2.32 49.6 0.99 8805 40.63 2.04 0.055 0.00 1.99 51.2 0.87 8704 40.61 1.78 0,054 0.00 1.72 52.8 0.77 8617 40.59 1.56 0.054 0.00 1.50 54.4 0.67 8541 40.58 1.37 0.054 0.00 1.32 56 0.59 8474 40.57 1.22 0.054 0.00 1.16 57.6 0.52 8414 40.56 1.08 0.054 0.00 1.03 59.2 0.48 8360 40.55 0.97 0.053 0.00 0.91 60.8 0.40 8311 40.54 0.86 0.053 0.00 0.81 62.4 0.35 8266 40.53 0.78 0.053 0.00 0.72 64 0.31 8225 40.52 0.70 0.053 0.00 0.65 65.6 0.27 8188 40.52 0.63 0.053 0.00 0.58 67.2 0.24 8154 40.51 0.57 0.053 0.00 0.52 68.8 0.21 8122 40.50 0.51 0.053 0.00 0.46 70.4 0.18 8093 40.50 0.47 0.053 0.00 0.41 72 0.16 8066 40.49 0.42 0.053 0.00 0.37 f: C , 1^.• l 1'll I 11-1 <'a! SV1 ^I A i'YV -!I�V 3`I _I DA13 /. ["^ " JCIfY/�`/i(: \Iai ' 11 t'VVJ'.411 ']E ^IT JtV!11 1 i;,Y?.8 iaioj jetaj ;a;�j jtlj [a uaj 00 D DD 0 VDG 0 OD 0 08.8E D r£ G a Iocj (1V.D GG.CJ EA1.0 C1u.0 a33E 00 0 oD.D r � G.�J rD:O eE.aE 'aee rA.= ?.a v' pi Li>i IF. 6 a.'12 DD D 00.10 E,D. t 0 0 aE.er. 'or , ( I J': C r :. r f `, f JQ.Ii c)c).0 GFO.0 00.0 0G.0 EAo0 40,C) SO, .GA C08c DB.S'r at DG D() r aI=D.D as r'A i .0 00 D ,a0.0 .,.0 A.Oa aS 5 Da. t i e r Ua.s 00fi c^.0.0 413, 18.GA grGF, 11AP 28.0,11, Sa ^ GD 0 T:a0.0 ,a P8;' 000 eaD.0 7,8.A Ee,OP "of`0I ae.a a.a, Da r'G.G n, n'D Se.A ?E.Dr- BoHJP tra i:.7,S 38.p D!i.0 DaG.:: C r• 8s, 0% `,8i0 Ge.P 00.0 OW.10 S 801 Plc OE A 00.0 r'":'..D aE ? 9e.0A 8E�0; Ar.' SE 88F 00.0 GaG.G Ae.#` Te.GP 3ti0i 48P 00.0 EaD.0 Oe.+` ae.DA ;eaGf et. SaE nn A 00 'n ea0,r HS.A aC.A DU 0 C01.0 t3.41 8s.Dlr G:.'>!it dA. EB.0 00.0 aGD.0 a;.t ; 6,04 7 i-113 f i�f.s JA w lr O!).V Df,4� CJD.D 1a0.0 Jf.F+ 8VOIl :iEAe �7.r >EP rE E 00.0 5aG.0 CE r r7.041 -a, F r 5.5i 'Sc.. L, DO.O ar.1.iJ BE., co (' GD 0 .'O.C.i AO.S a088 °e!' nn Da.l' Ou.D iJ.G ac.t e .OA ra3 ar 0'1.0 Aa'-'.0 „ r r.r. EG.f G'0!i Ac .0 80 i aaAa PfAB Sa.G a rE.0 UG a -r;-0. ail D SEC AC U)= `- .0 DO, �.ay.0 BC.0 L.a 8a.0 coo EaG.G 07.0 SB.Di c"VB ! E D 41a aa.D' 00,0 ,a.G 0 0. 0 Sao C! a.'J '••a.DA 4ar8 !=L',,0 an.v 010.0 °?D.0 ta.0 Da.0z Ss(& f,.0 '.DO .'a0 0 C? 0 0A Er08 8' '1 t.•'J 'iU.-! .,„),U `_.r.G e1`.Gr aaoa 9�.J ., 1 2 3 4 5 6 7 8 TIME INFLOW STORAGE STAGE OUTFLOW ORIFICE WEIR RISER/ [min] Ids] [cu ft] [ft] [cfs] [Cfs] [Cfs] BARREL 73.6 0.14 8041 40.49 0.38 0.052 0.00 0.33 75.2 0.12 8017 40.49 0.35 0.052 0.00 0.30 76.8 0.11 7996 40.48 0.32 0.052 0.00 0.27 78.4 0.10 7976 40.48 0.29 0.052 0.00 0.24 80 0.08 7957 40.47 0.27 0.052 0.00 0.21 95 0.02 7794 40.44 0.09 0.052 0.00 0.04 110 0.01 7732 40.43 0.06 0.052 0.00 0.01 125 0.00 7688 40.43 0.05 0.051 0.00 0.00 140 0.00 7644 40.42 0.05 0.051 0.00 0.00 155 0.00 7598 40.41 0.05 0.051 0.00 0.00 170 0.00 7552 40.40 0.05 0.051 0.00 0.00 185 0.00 7506 40.39 0.05 0.051 0.00 0.00 200 0.00 7460 40.38 0.05 0.051 0.00 0.00 215 0.00 7415 40.38 0.05 0.051 0.00 0.00 230 0.00 7369 40.37 0.05 0.050 0.00 0.00 245 0.00 7324 40.36 0.05 0.050 0.00 0.00 260 0.00 7278 40.35 0.05 0.050 0.00 0.00 275 0.00 7233 40.34 0.05 0.050 0.00 0.00 290 0.00 7188 40.33 0.05 0.050 0.00 0.00 305 0.00 7143 40.33 0.05 0.050 0.00 0.00 320 0.00 7098 40.32 0.05 0.050 0.00 0.00 335 0.00 7054 40.31 0.05 0.050 0.00 0.00 395 0.00 6876 40.28 0.05 0.049 0.00 0.00 455 0.00 6699 40.24 0.05 0.048 0.00 0.00 515 0.00 6525 40.21 0.05 0.048 0.00 0.00 575 0.00 6353 40.18 0.05 0.047 0.00 0.00 635 0.00 6183 40.15 0.05 0.047 0.00 0.00 695 0.00 6015 40.11 0.05 0.046 0.00 0.00 755 0.00 5849 40.08 0.05 0.045 0.00 0.00 815 0.00 5686 40.05 0.04 0.045 0.00 0.00 875 0.00 5524 40.02 0.04 0.044 0.00 0.00 935 0.00 5364 39.99 0.04 0.044 0.00 0.00 995 0.00 5207 39.96 0.04 0.043 0.00 0.00 1055 0.00 5051 39.93 0.04 0.043 0.00 0.00 1115 0.00 4698 39.90 0.04 0.042 0.00 0.00 1175 0.00 4747 39.87 0.04 0.041 0.00 0.00 1235 0.00 4598 39.84 0.04 0.041 0.00 0.00 1295 0.00 4451 39.81 0.04 0.040 0.00 0.00 1355 0.00 4306 39.78 0.04 0.040 0.00 0.00 1415 0.00 4164 39.76 0.04 0.039 0.00 0.00 1475 0.00 4024 39.73 0.04 0.038 0.00 0.00 1535 0.00 3885 39.70 0.04 0.038 0.00 0.00 1595 0.00 3749 39.67 0.04 0.037 0.00 0.00 1655 0.00 3616 39.65 0.04 0.037 0.00 0.00 1715 0.00 3484 39.62 0.04 0.036 0.00 0.00 1775 0.00 3355 39.59 0.04 0.035 0.00 0.00 t Miq t%iJUn q; 7•V n!-. v4 -1. A0 .�.�i'r r:+V V,'Q �'nir Jv vJZ+�+I! �1�A"I ..I CJYt�a �n�n-ro _i WA tv non ri1r•' Vd•.,)!W; nu' Jtva� J_ RYAS =toi 4� _��' `+! !ft uc4 iai�l n,m! EE.O 00.0 SCO.i! 0E.0 en.OA iA03 ON) 0r0.0 sao J 8E.0 e�.o� 7 roe sr 0 .:I .'.CJ.!"1 : i.0 t?'4•.:J� �T`d 1 'J i .I) it ?:'! rE_0 !JO.I; ` GO U 1 S.O AO', v Ci1.0 no'D OA rel l SCU CG f .!,O LJ'i.l! '::u.0 C'U.O L'F•."41 SL:`•.°•. rn.0 01•Y 00.0 00.0 a0.0 20.0 E?.DA 85&i 00,, aRr UIJ,:J OU.ti ..CO.0 y 00.0 00.0 CI.O cO U OA OA SI `, no v 0C r rCU.0 8U.!1 8E.0a :Jd441 00.0 005: ,iJ 00.0 Pao C0.0 5E.04 CrA'; OO.O Cr] 1., -1 ,. ., ., C:n n C11 " 'IE.OA nC E7 0O.'0 OES UU.I' OU.fj O::O.0 BOA a:.OA PSE I 'O0 U BA; UV. % 00 0 OCU,U ?,U J R^S \ 00.0 O3i U 1.!; co - 'CC.O ,.C.O =E OA ..ES\ 00D 00.0 OC:i,'v' OU O 00.0 OCO 0 CO.O EE.0 EA P `. OO :1 CUE nC. 0n ., CLC CO C SE.UA 'goo-,, n0:0 0SE 'JO.G DAVE) aO U fE.'JP pcO' 0 0. 0 CE.E 00.0 Oi) 0 ex0.0 a0.0 8 .OA aC88 0U 0 eec v li n'n.C7 �AU.:7 1 11 hS.:}6 2eaci U0.0 l.7A OO.o 00.0 8?0.0 a0.0 fS.Op C cci 00.0 are 00.0 00:0 iuOJ 00.0 Br.OA FBEal 00.0 a UO.0 00.0 &y0.0 CUU ff.Oil Croa UU.0 aea 00.0 00.0 Ci~U.0 CO.ii 8O.UA e4aa 00.0 CC`• Cn:O 0'..'n c-0.0 =^ r CC.O^ c°3B 00 Pt8 00.0 0C C A `0 OP A; d 00.0 8 6 00.0 00 0 nAOA PO 0 e4 8E -%IaFP 00.0 ccS .rJ nC.'.1. EfO.I, yC .. ao •nE �JiC :"C.0 Chn' 00.0 0!' :0 ..:0 U ii.0 Eel r;!C'A U!J O or tX). ftl.0 �b0 U AO.G U'� BF �BC]ts OU.O C P f no n;. ., rkC.''!:.., �C �E 1Acrr U;! �' C7°I OC!.i: uU.O fA'0.0 ?0.0 Ad.eE 3ECA OU 00.0 00.0 0110.0 be t] rE+ F:. 1 c+4, On c des r 00.0 000 eEO.0 40.0 JC.eE k-I 00.0 Cryr 00.0 UU.C' 9F0.0 ?0.0 PSUI` 00.0 clot C0.0 GSuE OU.0 UU.O IEU.O i1U.0 e?.,''. 00.0 CeCt O 00t; C O.0 !'00 -1 1.- dr1: 00A c'Sr 00.0 C'7� Ou.!J UJ.ti ZZO.O F•0 0 00.0 L r 1 2 3 4 5 6 7 8 TIME INFLOW STORAGE STAGE OUTFLOW ORIFICE WEIR RISER/ [min] [cfs] [«+ftl [ftl [dsl [cfa] [cfs] BARREL 1835 0.00 3228 39.57 0.03 0.035 0.00 0.00 1895 0.00 3103 39.54 0.03 0.034 0.00 0.00 1955 0.00 2981 39.52 0.03 0.033 0.00 0.00 2015 0.00 2860 39.49 0.03 0.033 0.00 0.00 2075 0.00 2742 39.47 0.03 0.032 0.00 0.00 2135 0.00 2627 39.44 0.03 0.031 0.00 0.00 2195 0.00 2513 39.42 0.03 0.031 0.00 0.00 2255 0.00 2402 39.39 0.03 0.030 0.00 0.00 2315 0.00 2294 39.37 0.03 0.030 0.00 0.00 2375 0.00 2188 39.35 0.03 0.029 0.00 0.00 2435 0.00 2084 39.32 0.03 0.028 0.00 0.00 2495 0.00 1982 39.30 0.03 0.028 0.00 0.00 2555 0.00 1883 39.28 0.03 0.027 0.00 0.00 2615 0.00 1787 39.26 0.03 0.026 0.00 0.00 2675 0.00 1692 39.24 0.03 0.025 0.00 0.00 2735 0.00 1601 39.22 0.02 0.025 0.00 0.00 2795 0.00 1511 39.20 0.02 0.024 0.00 0.00 2855 0.00 1425 39.18 0.02 0.023 0.00 0.00 2916 0.00 1340 39.16 0.02 0.023 0.00 0.00 2975 0.00 1259 39.14 0.02 0.022 0.00 0.00 3335 0.00 784 39.02 0.02 0.017 0.00 0.00 3695 0.00 416 38.93 0.01 0.011 0.00 0.00 4055 0.00 169 38.86 0.00 0.004 0.00 0.00 4415 0.00 82 38.83 0.00 0.002 0.00 0.00 4775 0.00 48 38.82 0.00 0.001 0.00 0.00 5135 0.00 31 38.81 0.00 0.000 0.00 0.00 5495 0.00 21 38.81 0.00 0.000 0.00 0.00 5855 0.00 15 38.81 0.00 0.000 0.00 0.00 6215 0.00 11 38.81 0.00 0.000 0.00 0.00 6575 0.00 9 38.80 0.00 0.000 0.00 0.00 6935 0.00 7 38.80 0.00 0.000 0.00 0.00 7295 0.00 6 38.80 0.00 0.000 0.00 0.00 7655 0.00 5 38.80 0.00 0.000 0.00 0.00 @ Z2 E +@ uU & && &G z ,m @ ±g &m E. Em &2 g 0'9 1 +6 cm g cE && 9:54 ,2 a #A G@ 0000 G« Em , 0 Q, C, 0 Eo u2 cg 2 c2 s 2 g c@ a0,01, 02 t@ c@ a yw 0 c�Jo E@ C. , 0 e Id2 a9 » 22 9-1c9 e@! E4 cE «e 0,3 £ y£ c2 Q. COS c3 E2 @ 06 ,@ +m z@ ccloq &2 �B cG c01 c2 E2 s Z) =m .. ±a ce 0053 ON ,6 aw c« , ya cs c ,2 r2 G %2 \ Ew Ga a 3 \\ zo \\ a@ = E@ ,s! ys Es E c« E@ 2 ,G , a 2 Cs 23e gs 06 3G 0 2 : ys co 0 0 2 «g &3 c2 2» cu P \\ \ y\ q\ \\/ =3 cm 1 es s2 m@ :e ,r, uq 2 EG ; 2 « 2G 0,E2 z2 2 a 2 ; y g co, A2 E2 &2 22 @ 2a 9 A ce «gi c9 a3 z3 3, Eg G2 2a E« s »6 , £ c@ 0 6 . z Cg 0 yA ee C0 E@ C@ . :7 , a3 as :U e& U: wC., Cl 0 so +a 02 a cm e2 , 0 �M@ . a C,J 2 &3 c 0 !LUILJJ ! 1 y r! ! i i wqE »7 2EroacS 3 o L msG r b:< MO1j111O�- MOIdNI—H PNWMNIL ONLMOM Mv5NrVHO 0'0 0'z 0'Y 0'OL OZL 0'4L 314RIOR lR1i10HAHO i DM 4). J aor p f. u.!: 6wm!)3 mm VdOJ9iU(?--44— V%O APR- 3-95 MON 11:28 NEW HANOVER CO ANNEX FAX NO. 9193414035 P.02 iNGINEENING a PAGIUTIES APPLICATION FOR PERMIT FOR A LAND -DISTURBING ACTIVITY UNDER THE CONDITIONS. SET -FORTH BY THE NEW HANOVER COUNTY SOIL EROSION AND SEDIMENTATION CONTROL ORDINANCE (P3'Tl, File Number Fee Paid Dat Applicant: GA W*Z 4J30Lr4-f% L CC- Applicant's Agents 11A•9K &1VA 40 ClaUs?, Go, Address: IpD,B �(eOL Address: /"DB n-,ol GyrlNlin/t.,riar�� 1�8yo3 ovi/Ps.n/..JoAI Nc 29Y41 Telephone Number:-% - SL 6 Telephone Numbers Total Acres of Land Diaturbanee: �- •4 purpose or Day.lopaents__�yC//Aw�srf/d ul r> Location and Description of Land Disturbances ' L'ARryAesL Q/i 6ic/i N)ioe/ /VO 1Y % 4,0C /01 Approximate Start Up Dates f - Approximate completion Dates V.4 4 G sTATzmzyT or FINANCIAL RssPoysuzuTy Land owner(s) of Record Person or firm(s) financially responsible for the land -disturbing activity Name: 41C Name: /si/4R,G/YA-YddA0 IOAI.3(.fU/1a✓CO. hddress: .0Oa si.0/ Address: jOya Sk0/ Ale Z xyOS Lv. /11,n0%a12,,✓ A)e ti8slo3 Telephone Numbers TeleephoneBarbers di/!? - % Sol- rLV Location of deed(s) or instrument (a)s County /y/.✓ Al"ooel look 1po3 page / q 9 County Book page The above information is true and correct to the beat of my knowledge and belief and vas provided by ne while under oath. (This form must be signed by the finaaelally responsible person if an individual and by an officer, diraetor, partner, attorney -LA -feet, or ether parson of authority to execute instruments for the financially responsible person If not an individual.) Date: \1' ;� i '�O , 1�+�! > Name (T7pe, or Prints V\11 Signatures wc,� vti ✓Sa/\.t/�J