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HomeMy WebLinkAbout20110180 Ver 1_Stormwater Site Plans_20110325 (2)Gec i'?ch i "unc and Associates, P.A. Foss . x,72 605-0472 i i [,.L=gronal Office Raleigh, NC . it of N( `,_,,-Dl Posour _ ;s Attn. Joseph yamfi Ref. Rip-Rap Pads, Seasonal Nigh Water Table and Level Spreaders March 24, 2011 Mr. Gyp_Imfi Thank you for t,iking the time to meet with us for preliminary review of this project. During our me=ding you provided some comments regarding storm ater design as if relo.F,es ilo ih s pi-oject. Since our meeting we have re-evaluated have mae;e some modifications tc the plans originally reviewed. During our mee line; you made mention the lei glh c)e flee rip-rap pads and the desire to adjust the outlet protection method from a typical rip-rcrp pad section to one with a is col design for energy ciisslpation. The drawings represent the original rip-rap pad seciioi,, configuration. Flovvever, attached is a defail showing an alternate outlet pi o ec. ion method for o cia out;c t structure. This design allows for the dissiprtion ?-)c cl to he ;hurter, reducing the pcXrmanent stream impacts, and prop ides a more evcnl?/ distributed flow at the pond outlet structures prior to the flow entering the wetini-ids. It thz°4 (Je.6 in is found to be acceptable, the drawings rngy be revised as necessary to reflect the chcnc o. As mentioric.d iii the r reefing the 72" pipe at ;he str=um crossing is design for future development. Curran ly there are no stormwaiei requil-ements for development within the Town of Fuqua;f ` a,"Ina. As a rcculf the pipe wcas designed keeping this in mind for future development. It vas noted the desire to reduce, the size of the pipe to allow for a reduction in ih% sic if the dissipalion pad. The eras "Ir cg has been re-evaluated and the pips bias been i educed to a 60" RCP. This iS cciii:.vocl by utilizing the upstream wetlen(Js cis tempore i-v sfor-ige for runoff during larger storms. You also mentioned the desire to have a full' 100 fif !(_, of prcc-,der to handle a full 2 cfs during the 10 year storm event. You did mention, and cgrcu to, the aos ibility of reducing the required flow to a level sprender, thus reducing the required length, provided the ponds remove 90% TSS vs,. ziie originolly designed 8 % TSS. Upon further evaluation we have determined thc.t reducing 111 -ie flow to a level spreader by t?•nr 'i a i 7ons.v and f .so'lates, PA. 1CI"... ?:? IL)e _1402 Post Off!. Rui'i -l" Ali-. ';0_') 'l ? 7 y JE-,3._1.'%I2 P Y i Y i r ,- x.203 increasing the TSS removal is the more appropriate approach to the level _ ,-r e Icier design. During the meeting we discussed the design requir` c nenfs of wet deleFitiol , I c_ -ins arding the seasonal high wafer table. We discussed the fact that for i_-)oil1 r)onds there is some deviation of the seasonal high water Ic'Ible, above and below, the designed permanent pool elevations. You noted the potential of a wafer proof lining if the seasonal Nigh water fable was an inappropriate elevation in r daiion to the de,i ned permo gent pool. The original soils rep,,-rt ShOo ,- grades of the are-o hike from }A/Cjk<e County topogrophic information, which ccsn have some deviation from actual Eleld conditions. To create a more realistic elovalion the ,,e[- i4is were gc?:e lc?ted from a provided existing conditions survey. IS information is not cs accurate and sloes not ties} c;, sting site conditions 'wh re some grading may have token Ertl occurred after the CIS inl ormation was created. This showed that the deviation of the seasonal high water fable is not as significant as shown of the soils report. Attached is a sketch estimating the seasonal high water table at a number of locations within tl c rea of each wet dele ration basin. The sketch also shows that the average of the estimated secsonal high water table around the ponds is within the standard b" of the permanent 4 elevalin. Please see the attached calculations regarding the ponds. For each pond we have provided information regarding the 4 hr d rav,N dawn time for the 1 "storm event, the runoff control for the 1-yr storm evo it and me flow through the pond for the 10 yr storm event for sizing the level spreaders. Should you have any questions or comments feel free to call. CROSS SECTION 1} FOP JEi }`,IA. 3, r. TL: Y6i ( ,J? Y I i 4 R- 0 Li- LO - IL C) R m 1 l M W "y. <I U n n- j- n- n /W U u 0 u Ill Y? D ?p ou '_ La } a a ?y 1v PI I , y v P C ¢ ^ V pN C ?. y0 +} T N N - cJ u m U m U .c z m z - - P z ° zo co 6c-, e+A ?J U- _ 0 - ? > .t co ? t13 r - '4r? If ? 1 '1 \? 1 "a t? FBI LlJ ? 1J 1 ? i"? U-J -100 r2 i °I,' ?' rk ' (py 1.:I ?.. rCrA r ia'> r J ® Ii ?t t C7 Q -j UJ Mme' y t !` iF 6 ti`s O (£?} ' LL, to LLi 1 \ _, 7-j Jr fFJ fr 8-C? 7 r 5 ? Uj 3: i,j " W -T U) C L Lf -'a? Ill ? "' Ufa L ? I ??? , f,f ;,} ti' ?? (?? L iF3 a L!j i - ti Wr ! !- .ate W LJU ,r Ate, - i. L-C .._. .,.a, __. _. .? ELI Soil & Environmental Consultants, PA 11010 RAVM M450 RZW - MaIA N01h CMba 27614 * Ph=: (919) 846-S900 o Fsx(919) 846-9467 WWWSMAMCOM December 22, 2010 Job # 9929.S I Generation H, LLC Attn: Julie Zalkind 2731 N. Norwood Street Arlington, VA 22207 Re: Detailed soils evaluation for the proposed storm water treatment areas for the Adcock- Wilkes Property, located. at the intersection of Sunset Lake Road and Products Road, Wake County, NC. Soil & Environmental Consultants, PA (S&EC) performed detailed soil borings within the two potential storm water treatment areas on the site mentioned above. The purpose of this evaluatioliwas w provide additional information for the proper des' ofastorm Ign water BMP, to treat thenn-site storm water. As indicated on the attached map, soil -morphological profile descriptions were performed at the specified locations to a depth of 4 to 6.5 feet from ground surface where depth to seasonal high water table (SHWT) was esturrated. The following is a brief revort. of the methods utilized in this evaluation and the resultig obtained. Soil/Site Evaluation Methodolo The site evaluation was performed by advancing a hand auger boring to a depth of 4 to M. feet within the proposedstorm water device location (see attached site plan provided by client). The proposed stns mr water BMP areas were pre -determined by the client and provided to S&EC (Attachment 1), S&EC navigated to the locations with a GPS receiver. Soil morphological conditions were described at each location using standard techniques outlined in the "Field Book for Describing and Sampling Soils" published by the Natural Resources Conservation Service (NRCS, 2002) Soil/Site Conditions This site is located in the Upper Coastal Plain Region of North Carolina. Field investigation revealed that the soils at the specified boring locations have a range of seasonal high at table estimations from 5 inches to 78 inches from top of ground. Tlie variability of SHWT estimations appears to be that much of the are evaluated have been altered, including an old farm road, or are located close to drainage areas. Thus, special attention must be given -Arbon locating and determining the specific storrawater treatment device for this site -0 ,, - -, ? _ .. K ?_ .. Permit No. {to be pmvtdedbY MAO) Please ;rage or plan sheet riumbers ti,here the supportrnG doaumentadon udn be found. ru.o n _ c. _ 161. I in ti s.,.v provi,s :d to L' rave t.?..:r, r, J. If she =i#p icant hasdesicrated an agent, "he agent may initial below. If a 1 Plans (1q 50' or larger) of the entire site showing: - Design at ultimate build-out, {off-site drainage (if applicable), - Geiineated d€€iainage basins (include Rational C coefficient per basin), Basin dimensions,.. - Pretreatment system, - Nigh flaw bypass system, Maintenance ac=3s, _ Proposed drainage easement and public right of way (F:O A! , Ov &ti Rl device, and - Boundarles of drainage easement. t _ 2.. Partial plan (1" = 30° or larger) and details for the wet detention basin showing: -Outlet structure with trash racy, or similar, - Maintenance access, -Permanent pool dimensions, Forebay and main pond with hardened emergency spillway, - Basin cross-section, • `f ege0tion spcciticationfor planting shelf, and - Filter strip. 3. Section view of the wet detention basin (1 ° 20° or larger) showing: - Side slopes, 3:1 or lower, - Prstrezitr vent and treatment areas, and - Inlet and Nltiet strMuss. 4. If the basin is used for sedirr€e rit and erosion control during construction, clean out of the basin is specified on the plans prior to use as a ,sue` detention basin. 5. A table of elevations, areas, incremental volumas amumulated vniumes for nveiall pond Fmd far fc rebay, to verify volume provided.. -- & A construction segue€i(? that idol"-, how the v,,et detention basin °r;ll bo pr teci6d froii sediment until the entire drainage are>o is stabilized. 7. The supporting calculations. 8. A copy of the signed and notarized operation and maintenance (O&K agreement. - 9. A copy of the deed restrictions (if required). 10. A soils report thet is based upon an actual field investigation, soil borings, and infiltration tests. County soil maps are not an r-zcceptanla source of soils information. Form SW 1-Wet Detention Basin-Rev.8-9117/09 Part III. Required Items Cfl,3 Kist, P::;ge 1 of 1 Permit k, _ ifo he r,-or?:i?sd by DWO) I I STORMWATER VANAGEMEMT PERMIT APPI I ATIOV -r)Rm 401 t F;11Fi;ATIv'GIAPPI-,?i ?1?IJ??- ';Fs::: This f0n '17[eC?, 1_U l1!_:J]h T4P „ Racuired tfem Ch c'rK f lPirt Ill) rnrf 're'rJ;J? ? and subr,,Pteu , J(. , V, aI! cr e (eaj aired info r: ,a;rorr. r ?iecf ra G _ - - _ t:,r,°2 , F,e won Pt o;,4 number F t . res number U:_inage area In'PeRlicus area: post-development % imp engross C^siq i rainfall depth zcie VaTu ae: Non-SA Waters {linirmr,,? ,volume required Volume prcvi:aei 1,5" runaofr'Glurr € PmAewe!cr men:1 yr.?4.fir runoff Pr,`-,!eVelapment I yr, 24 hr runoff Minimum volume requi??rJ Volume orovids?, CeneraGo i . i C2 Mira, LLC Spa. r Facell s Ccr!N?99ins -- ?7 U?G4. 1 Pe Fl t Ict 'F.±4.'f 5 Is the prefpast contrci of flee lyr24hr storm peak flow required? 1-yr, 24-hr rainfall depth ,ai";Jna1t G, t;4.':-ri8!relrpment " RaLc,nal C, pon-clevclapmant iraenAl: 1 y4. 214-hr storm e de :elopmerit 1-yr, 24-hr peq!c flow t?ast e?rlu,wrront1-yr,24.hrpeak rlowi P1 e6los., I-a,, 24-hr peak Juw conLro! Te ary pool elevation Permanent pool elevation SHWT elevatioo (approx at the perm. pool elevation) Top of INveg9tate? she.if i=!evation Bottom of i!tl ,. eye ,-,I at , E> -n Sedimentcleanout, j , on .,r n fp.ond) Sedimentdeanout, bottc , -_v Sediment stowage provided Is there additional volume stored above the state-required temp, pool? Elevation of the top of the additional volume Form SW401-Wet Detention Basin-Rev:8-91171og 664,33` f 545A 4.4 ft2 - 87-1 ti °ro i.0 in 17,878 if Insufficient required volume. 28;63'1 ff OK, volume provided is equal to or in excess of voluine. requite_ If ff3 f -ft' fe Y (Y or N) 3.0in (unifi oyhr 30:05 #f3/sf 60.76 Wlsec 30.71 feel 383.71 fmsl 3830) fmsf - AVG 2 X14 fmsF 3825P, ms' 3r ?.Di1 'u?si 3; C0 fm;i 1..00 .t Y (Y or N) 383.7 fmsl OK Parts I. & If, Design Summary. Page 1 of 2 Permit Nc iemporarv pWl 26 603 ft` Ares: RE"?UIRED, permanent pool 23,2??2 f'2 SA1D,A ratio -: _.3_50 rr nikfe `=) Areri PRCIVIGED, permanent pool, AWm-p«d 23,7I3. fb? 0K A?-,,I r%;))of10ftvegetated shelf, Aar 20,i7f i-I Arta - ; ilrem cl:?nout, top elevation (bottom of pond), Ara, PpFla 1 t.2 V'lun-, r:?rarypool fe Volume p ; a mlientpool, V ,.--Pd ft" Volun,, fp'ei;ay of fei ebay,. If more gran one forebay) fe Fowbay % of pee nanarit pool vulumo % S- A, l-Lble i!ai Gecirn 1 SS rem: dal 90 % Coastal S,!VU„ a.Ee USed? n (YorN) Wounter Piedmont S.w'D A' 'able !Iced? y (Y or N) S fDA raro .:.. --- 3.a)O (un[fiess) Avecagi= depth (!,sed in SAIDA table). Cad cula on cp;lon 1 used (r^ Figure 10-2b) n (Y ;?r fit) Volume, Irernanantpco', rp o.ided, perri,anenl pool, Apa 23,712 k` iyB dep.(? C31Cn'at°U fl R ge depth uoel In S.NDk, d.„ (Round to nearest 0.5ft) ft Gaiculaliu"r Option ? ag ed'? (,)e Figure 10-2b) y (Y or N) Araa ipxvide.1, permananf pool, A,._,, 23,712 ff? Area, bottom of 10ft vegetated shelf, Ab.o 20,731 fe , sediment cleanout, top elevation (bottom of pond), Abut-pond 11,205 ft2 TCPf {di once bAy bottom of 10ft shelf and top of sediment) 15() ft Avenga depth calculated 4.23 ft OK Ala-rage depth u ed in SNDA, d,, (Round to tea esf 0.5ft) ?.?5 ft OK Di - _ , . , Cwlcuia ions Drawd; r , i i ior, b orifice? Dian, of ot. ice (if circular) Area of orifice (if-non-ciroular) Co?ficient of discharge (Go) Driving head (Ho) Drawdo,Rrn lhrough weir? Wait t;[ Coefficient of discharge (Gw) Length of Weir (L) Driving head (H) Pre. ee, r apm.a 1 1-yr, 24-hr peak f okv Posf-devela{arrest 1 yi, 24-hr p k 1ox.r Stu :;ga vo; r,e a schrirge rate (Through discharge orifice or weir) Sfiraaf n ,r,,a : {. , ,r. fr9ln time VI i -. I -11015 l>;'I!iin Aipatf- to width ratio LC- i tai Try r ?. ov-?rtiow & orifice? Ft rice,.; 1rr. ie-d u.tei provided? Recorded dr-al tago easement Vi o,,ided? Gapjrea all linc4i t ultimate build :,ut7 Drain rrechan;7m for mairibenanoe or emergencies is? Fom : VV40I 1/ir._ t i ,tendon Basin -Revs-9117/09 y (Y or N) 4 00 in in2 Quo) (u-iti) 0.42 ft -- (Y or N) (uniHess) -- (unitless) ft ft 30.t!? i `,;?c 00.~ f: hzc; 0.35 f.'1seQ 3.50 oay;3 OK, draws down in 2-5 days. 3 r1 OK 10_:1 OK 50 o ft OK 2 : ( Insufficient flow path to width ratio. Must not short-circuit pond. 2,0 :1 OK y (Y or N) OK y ft OK y (Y or N) O y (Y or N) OK y (Y or N) OK Pump Parts L & 11. Design Summary, Page 2 or 2 1-3-17,11 Ty 11 24-hr Rainfall= -!. 7117'. A Shl 002626 C7 1vf i00;, it icrr ?a i s ? stems o ,r :;w Area 15.251 =ac, In y s •? c ? h is ;0 of Outflow 9c f} VoIji,ne° 0.6 i af, '? 00 f Aft F - 98%-, lma 1" ?n y s' [ 1 UV hrs, Vok. 0.28 c,fs .0 i !,rs, Volue ,- 0.61:J F Rou ..:j oly S"or-Ind riethod, Tir',c :spa j- j.00-72 00 C C ?r.> - v PcE, rrv ,J 3 71' x.06 hrs Surf-krea= 26,650 sL ? S1..,r g?)z C, l: c, Rug vv d -LenJf.,jj1 i :=816.4 rain calculated for 0.610 of 195% of vP) C ,? -C.A/ ass d et. t,.r y= 790.9 rain (1,619.6 - R2f3 7 ) Invert Ava .Storage St0r, r,B - sc?'pfcjn 1 383.00' 138,422 car" a!< 9a. I) J I]: Elevation Surf.Area Ir?.? Lore Cc r?.? t?rc; Vv'et .<4Ar a {feet) (-? q-ft) ? aEc-fFetj (cc? fu?t} . } 383.00 23, 112 0 0 " 7:,7 ;?84,00 27,847 25,752 25,752 2 8 9 6 085.00 20,34a 28,8/1 54,593 , 30 0C3 386.0(} 31905 30,870 85,4612 , 32 'i83 387,00 w` 32,9,, 118,422 . n is .424 1 2 2.50 3.00 V 2.70 2. 3 6$ 2 °67 Z65 ?65 2.65 2.65 2.66 2.66 2.67 2.69 2.72 2.76 2.33 u L Invert Ou'Lie! i,lev ces Rrfr t ?: y 380.25° : O . ?=" RCP , sq.c:ut en Prc;actiog i<= 0 500 C}l Vct pi 3?! _ 4 it , . jJ l 085 r n-- C".01.3 Cc( ? -D3O N Secondary 383.00' 4a.C" , . . C?d?t Im c.-t 38 0.01:? Cc 0 00 Device 1 3Sr 10` ? 9n c 33 VsP-- . 0.600 Device 1 :?84.8?' Sows r 0 680 ice o. ?.? -?rY 8.35' 2` : long r . Pcad. freet, 0:20 0 0.60 030 :'W :.20 t 40 1.60 1.80 2,00 3.50 4.00 4.50 5.00 3.50 Coe( (En fish) 2 37 2 51_ L c t . -x-0.00 cfs 0.00 hrs HVV 383.1,(' f E-:e D° g s 0.00 cfs of 28.95 cfs potential flow) (Controls 0.00 ct s) °G 6 9ct3?a14 _- ( Controls O. cfs) ,.? lvx.28 its 0 16.06 hrs HVV=383.71' (Free Discharge) 10 28 - C? 3.2 fps} (Controls 0.09cfs) -3-17-11 Type IB 24-hr Rai faY° ? -V, by GEOP"J'-- . L'd u X1.5 hp p ilIFCe Mf, f'?oCCj71pli1B?? u r-, n-^ TYPe 11 24-hr Rainfplf=' H droc.;AD r.CO .In C l a- OJ3 P, phc f i c r ?r tpt'tF i`ne Inffnm/ Primanf Seco ,dE,fy Cub a _ ? 7 ("ea. (C. c O.OP 0.00 0 383.00 0.-00 0.00 0.00 2.00 0.00 0 3813 00 0.00 0.00 0.00 00 0.00 0 303-00 0.00 0.00 0.00 6.00 0.") 0 '-,8 ,cl0 0.00 0.00 0.00 8.00 0.r0 0 083.00 1.o: 0.00 0.00 202 0.10 0.00 0 00 2.Oi; 12 '` a 10,838 383.42 0, ,6 0.00 0.25- 141, 0 t?.46 17.676 0 3.?9 0. 0.00 0.28 '1600 0.19 1g 1 W C n0 18.00 0.212) 0.00 20.00 0.16 17, g0 3' 3.n6 0.28 0.00 0.28 22,00 015 16,607 363,64 0.28 0.00 0.28 24.00 0.14 1 ,666 383.61 027 0.00 0.27 26,00 0.00 'J.743 383.53 0.27 0.00 0.27 ?8,00 0.00- 11,8C8 333. 027 0.00 0.27 30.00 0.00 915 383.39 0.25 UO 0.25 32.00 0.00 0,28 30-132 0.21 0.00 0.21 34.00 0.00 6,936 383.27 0.17 0.00 0.17 36.00 0.00 5,875 383.23 0.13 0:00 0.13 38.00 0.00 5;051 38120 0.10 0.00 0.10 40.00 0.00 4,404 383.17 0.08 0.00 0.08 42.00 0.00 3,800 383.15 0.06 0.00 0.06 44.00 0.00 3,473 383.13 0.05 0:00 0.05 46.00 0.00 3,131 383.12 0.04 0.00 0.04 z3 00 0.00 2,847 333.11 0.04 0.00 0.04 50.00 0.00 2,60C 38 3.10 0.03 0.00 0.03 52.00 0.00 2,A 9C 333. ()q 0.03 0.00 0.03 5Z 00 0.00 2,225 383.00 0.62 0.00 0.02 50.00 0.00 2,075 383.,)8 e.02 0.00 0.02 58.00 0.00 1,945 383.08 0 02 0.00 0.02 60:00 0:00 1,827 383.07 002 0.00 0:02 02 010 0.00 1,720 383.07 0:01 OM 0.01 54.00 0.00 1 624 383 06 0.01 0:00 0.01 66.00 0.00 1, 336 383.06 0:01 0.00 0.01 f;3.00 0.00 1,457 383 06 0.01 0.00 0.01 70.0)0 0.00 1,3D5 "3335 0.01 0.00 0.01 72.010 0.00 3;%'s 3&3.05 0.01 0.00 0.01 a L -7 7-l' "S -j bca t") a,3 ii Prepere:2 by t,rCKGE F: v,', !1? uhf "' ?V,prti : „>Sc.)G. ?;i?_ r'2C ! 1 Fi/ lic tiUCR- ?,CQ s/n i 0 o"L OO 19c?t 2CG, /a, plied riVsrocomputer Systems 17 p® y ?/ R t"4 ?y ry Yt Type// 4-hr Raihfaf9 00" rd II ??+t A,yi G':fY i ??? ?.J ? ?2 0 C', P Y q Hydrel?6. CC S!n 00 (1) 1996 003 1,>)plicc ?l crcc c r???,_°te ,s n 3i i%CD 11 ®F?., i 1! , ? ?.? is=?,.04 hrs, 19x01 3c nts nethod, U i SC.;5 R?r;- jh b iod Pond rouiinq by Stor-Inca method I: pre R :r7Qi-' Area=6.- ' sf Runoff Depth=1-19" luv Lnr gt -750' Tc=5.0 min CN=79 Run,-);-!--30.05 cfs 1.426 of ost Runoff sP Rur _ , `n=2.35" Tc=5.0 mir, - iZur'cb;-6t}e7; 2.987 of n r . Pea', c- low=60.76 efs 2.987 of it iaryv25.90 cfs 1.945 -.f yet cr chary=0__;5 cfs 0.909 a; Ou-;iotin-26.25 cfs 2.944 sf .-3-17-11 7" 8 , 11 24-hr s ry e t p ?P Fl y GEORGE HNCHIBONEY i, ' <g r HvdMIC D(rg) 7.00 s/n 002t?-?6 1986-2!,C"? ?iir:c '? c c Corr 1. 'e Systems ?1 : lJt)11 Runoff _ X05 Us % .98 hrs, VOI ,. = 1.4-v af, Depth= 1.194 Runoff by S CS:: TR- 20 UH=SCS, Time ;' , - = 0.0(? 7 hrs, dt= 0.04 hrs Type li 24-hr Raiftfc'11 Ares. C;f} CN De cr'",?t:o,r. TC LeEgt't SIcf)- ; Vela it%y .C pc1cif DesS °ip,Jon 6:tl ?yy 0.'i 250 0.03'103 _.. ...ASS ?d'? ,ry?r??? 1 y?•?g*r?q?9 c6 i' -tsga Type f! 24-hr Rainfa#=3.00" f` ydroCAM 7.00 si;^ 002;26 ? 1988.2003 Ap(alie ioriicroc?rr, mr,t?r „ n:> "l') ?'i?' 1 `° pre . Time ,Geist. Lxcess R1lnc; Time Piecip (-xcess Runoff l sir., ?s tmom, s c } ours f J... :f hp s -1-1ch CfS 0.70 0.00 0.00 0190 42,10 x.00 1.19 0.00 0.c;0 r,02 0.00 0,00 4 .20 ?00 1.19 0.00 1.80 0.05 ?.r a 0.00 X14.0 .00 1.19 0.00 2.40 0.08 0.00 0:00 r ° . 30 3.00 110 0.00 3.20 0.11 0.00 0:00 3.CU 1.19 0.t (? 4:00 0.14 0.00 0.00 3.00 1.19 0""o 4.80 0:18 0.00 0.00 47.20 3.00 1.19 0.0() 5.60 0.22 0.00 0.00 4Ll.00 3.00 1.19 0.00 6.40 0.26 0:00 0.00 4i>G 3:00 1.19 0:00 7.20 1,31 0.00 0.00 49,60 3.00 1.19 0.00 8.00 036 0.0t 0,00 50.40 3.00 1.19 0.010 8.80 ^.42 0.00 0.00 51.20 3.00 1.19 0:00 9.60 " 50 0.00 0100 52,00 3.00 1.19 0.00 10.410 0.60 0.00 0.08 52.80 3 00 1.19 0.00 11.20 035 0 ,02 53 50 3.01 119 0:00 12.00 1.99 0.52 ? 54 40 3.00 1,19 0.00 12.80 2.28 0.69 2, !0 55 20 3 OG 1.19 0:00 13. 10 2.41 0.78 t34 56.00 300 1.19 0.00 A40 2 50 0.84 1.0? 56.80 3.00 1,19 0.00 ^5.20 2.:?3 0.89 0.21 57.60 3.00 1,19 0.00 16.00 2.64 0.93 0.71 58.40 3.00 1.19 0:00 '16 80 2.69 0:07 0.84 59420 3.00 1.19 0.00 17 c0 2.74 1.00 059 60.00 3:00 1.19 0.00 18.40 2.78 1;03 0 53 60.80 3.00 1.19 0:00 19.20 2.82 1.06 6.47 61.60 3.00 1.19 0.00 20.00 2.86 1.08 0.41 62.401 ?.00 1.19 0.00 2030 2.89 1.11 0.40 , 20 3 00 1.19 0.00 21.50 2 `(92 1.13 0.39 64.00 00 1.19 0.00 22.40 2.95 1.15 0.37 64.80 3.09 1:19 0.00 3 21 0 2.97 1.17 0.36 65.60 4.00 1.19 0.00 24, 00 s _I9 1.19 0.35 66.40 3 00 1.19 0.001 ?4.30 3.00 1.19 0.00 67.20 3.00 1.19 0.00 5 60 3,00 1.19 0.00 68 00 3.00 1.19 0.00 26 40 3.00 1.19 0.00 68.30 3.00 1.19 0.00 2-(.20 3.00 1,19 0.00 69 60 3.00 1.19 0.00 23.00 3.00 1.19 0,00 70.40 3.00 1.19 0.00 23.80 3.00 119 0.00 7120 3.00 119 0.00 "9.60 3.00 1.19 0.00 7-2.00 3 0 1.19 0.00 30.40 3.00 1.19 0.00 31 20 3.00 1.19 0.00 32.00 3,00 1.19 0.00 S2010 100 119 0.00 3` 6U 3.00 1.19 0.00 3J.] 40 8 00 1.19 0.00 36 20 00 1.19 0.00 ;?6 00 3.0C 1.19. 0.00 36 80 &00 1.19 0.00 37.60 3.00 1.19 0;00 38A0 3.00 1.19 0.00 ?9 20 3.00 1,19 0.00 4() LQ 3.00 1.19 0.00 40 80 3.00 1.19 0.00 ': bC` 3.00 1.19 0.00 t --3-17-11 TYPe O1 4-hr F ainf II ;90« P ,? k L-y C ? = FIN /BON Y AMC} ASSOc. z ??'Qi C)CA[h'21 7-©O -sV®?Vl.'JvZh 0, 1986-2 VJ 71rxAc.A KF? \.f c J. I pF t r Systems '2W23/2011 Runoff 60.76 cf (q-) 11.96 hr:.; 21 ; a;, Depth= 2.35" Funo p ?y S CS TF: L0 mc',hc c , 1F: ?C f' e Span= 0.00-72.00 hrs, dt= 0.04 hrs 10,803 98 ?7 1,220 74 Gc d,? r. C r s 65,993 98 P `od,.jcis i--?c 7,318 74 31,058 98, c ^! _ ?> P" 1,002 74 Jucr 98 Sit,--- 'I Mp j 74 664:,'333 Tc Lei ,gflh Slope Velocity C aw aci ,-' Desc rir'ion ruin' `t'c?Tt (ftlft} (ftlsec) 5.0 r, ? F ? ?? ??, :.I E P? t? ,?+i_,,1 t®1^Zp ?} + Type J/ 24-hr Rainfall?, 00" P" f (`w A .J C ,, GE 171 C ill pV)} !?? A'lJ C?-S'O C. P Fg o 9 7.0C' sin 002626 Q lg86 %00 Time P ecip k c:c;ss F urio r h-Our`' r. ,rtes) irx:??e i cl??. 0.00 0:00 0,00 l-: JO 0.80 0,02 0.00 0.Ci0 1.60 0.05 0.00 0 ;`,0 2:40 0.08 0.00 0.00 320f 4.11 0.00 0 03) 4:00 0.14 0.00 4.80 0.18 0.00 0. , 0 5.60 0.22 01.01 0.18 6.40 0.26 0.02 0.27 7.20 0.31 0.04 0.36 8.00 0.33 0:06 0.46 8.80 0 42 0.09 0.71 9.60 C ?C 0.14 0.89 10.40 0.60 0.20 1. ?+:3 11.20 (3.1:3 0.31 II 12.00 199 1.39 12.80 2.23 1.66 3.2P? 13.64 2.11 1.78 2.05 14.40 2.50 181, 1.53 15.20 2.58 ' .'9A 1.29 '16 00 2.64 2.00 1.04 113. 80 2.69 2.05 0.94 17.60 774 2.10 0.85 8 40 2.70 2.14 0.76 191 2.0 2.82 2.18 0,68 20.00 2.36 221 0.59 20.80; 2.80 2.24 0.56 2160 2.92; 2.27 0.55 22 X!O 2.95 2.30 0.53 .2« 2.97 2.32 0.51 x.00 °, et 2.35 0.49. 24,30 00 2.35 0.00 25.60 300 2.35 0.00 26 a(, Gil 2.35 0.00 1.20 3.00 2.35 0.00 28 00 3-00 r 35 0.00 2 '.30 3.00 2.35 0.00 29.60 3.00 2.35 0.00 30°40 3.00 2,35 0;00 31.20 3.00 2;35 0.00 32.00 3,00 2.35 0.00 32,80 3.00 2.35 0.00 33, ?c 3.00 %'.35 0 00 34 .10 3 00 35 0.00 5 20 3.00 2.3u 0.00 36 Ou 0G 235 O.OJ 36.80 3 0", 2.3! 6 0 100 37.60 3.00 2 :.5 c 0 0 38.40 3.00 2:35 V_00 39.20 100 2.35 0.00 40,00 3.00 2.35 0:00 40.80 3.00 2.35 0-00 41 .60 3.00 2.35 0.00 TI () a ;jcrses,} (inches} (q l2 40 3,00 2.35 ?.u0 43.20 3.00 2.35 0.130 44.00 3.00 235 0.00 441.30 3.00 2:35 0.00 1i5 60 3,00 2.35 0.00 ?i6 0 1.1..03 2,35 0.00 -4720 3.00 2.35 0.00 x1€3.00 3.04 2.35 0.00 48,80 3.00 2.35 0.00 49.60 3.00 2.35 0.00 50.40 3.00 2.35 ; 001 51.20 3.00 2.35 0,00 52.00 3.00 2.35 0.00 52.10 3,00 2.35 0.00 53 60 3.00 2,35 0.00 5z 4 0 3.00 2.35 0.00 b5 20 3.00 2.35 0.00 3v.0E3 3.00 2.35 0.00 156.80 3.00 2.35 COO 5i CO 3.00 2.35 0.00 58.40 3.00 2.35 0.00 59 -20 3.00 2.35 011.1)0 60 00 3.00 2.35 0.010 60.80 3.00 2.35 0.00 61.66 3 00 2.35 0.00 624,9 '300 2.35 0.00 63 2 300 2.35 0.00 6%!.00 3.00 2.35 0.00 64.80 3.00 2.35 0 00 65.60 3. G0 2.35 0.00 66.40 3.00 235 0 00 67.20 3.00 2.35 0.00 68.00 3.00 2.35 0.00 68 80 3.00 235 0.00 63.`:0 3.00 2.35 0.00 7C.40 3.00 2.35 0.00 71.20 3.00 2,35 0.00 72.00 3.00' 235 0.00 1--3-17-11 Type// 24-hr Rainf l!-3..00- sr by OR E F'I M -i ? ONEY AND F'a;,ge 10 -jk,r±roCADO 7.00 ski Ou'26 '?' @I r{ _ 9-M3 Applied M cir, el iy5`ems , ,1-111 6 IpfBo r ' F - 15.251 ac, Inflc3mv Depth 2.35' Mot- - 60, tC cfs tr 11 96 hrs, Volume= 2.987 of Clt lr..v1° = =6.26 cf' 12.03 hrs, Volume= 2.9 IM f, A'- n= 57%, Lag= 6.0 rain .Le 1G.' ? I-'!r's, Volumes 1.945 {Z? i 05 hrs, Volurne= 0.999 of `;a:qr ° yd method, Time Span= 01,30-72.90 hrs, d'- 0.04 hrs / 3 S5,0` Cg) 12.9 hrs Sur,.A ra- A 01 t sf 5' ra X7,164 cf inin 9% c?` 9'tfloW) of C Jd -IViasS i:e: . - ,-ss7r3J `^, 1`j.5785.1 } lil -eri Avail. Stompi?c Siciage Da r-; ton 1 3 3,t;t" 118,42 c Cus orn : eta { yr F ki' . L:;., =d below EIev:,a}+on Surf. Area Inc,O,+ore Curn.St re Wef.A,rca (,F?e t _ (sq-ft Cu3i,r`£9l'1 (oublc-feet) j l 8 111. 23,7112 n4.00 2r, 2+5,..,52 2,752' 27,896 385.€J0 ?G1.?. irz 218,8 ? 5-.;59 3 Cj, n t 186AT 31,605 30,870 62 32,183 387.09 34,025 32,9.59 1V" 34,424 Irz:fert Outlet Devlc.es 1 Prrn rtf 0. 25' x 3 01 ?,. A `; ?;o: b° l r 2: - I ..11 end rot cj' r g, Ke= 0.500 r 'il "1 1 Ur 37R r!` - ld ®t?85'I" n.P??.? C,("-; 3.31 a 2 Secondary 4383.00` q LTr?7 ?4 ir1.1 S, 1 ! iFJ'v 1 (1 (Crrrgy (Se® ?y U.2?y?} V4J L?Iet E i3ft: ai23 ? .? ., 02")C; V, nh C'Oh.. 3 Cc= 1,.900 4 Devi 1 38h.85J ?`, iil CI'7 fI:'.V 0.600 5 Secondary -M(),3-5 1 vd t; SCI O.,-AO 0.+ 3 -'= 1.20 , '10 1.t)D 2:00 2.50 00 3.50 4,00 5.00 5.50 Coef. tLll x[ici1) 2.37 2.51 2.7+0 2'8 8 2.68 2.67 2.65 2.65 2 6`3 2.6 ; 2.66 '12.67 2 89 2.72 2.76 2.83 Fit 385.07' {Free C c. ? '''c`?S` i3 ,,,5,1G3 ' I 'i?- "FE'a :?l``. iC3LCs f']cir. 11'0`:1a I I` J Ye f( (Vveir- L..'.J'nti"4 . 2 8 cffi fJ fps) i--114=385.07' (Free Discharge) ?rw? 4.0 fl Controls 01.00 cfs) Type // 24-hr Rainfall=3, 00" ?r=« `MQ,0XEY t FNS i) AS` ) C. Era 11 ? A 7.t7j 'n 02c:26 C 1986200' f131F'u 31312(?`t1 Type// 24-hr ca E 0, i do ft f? c?L ?+,!? 0 sl° 002326 C7 1..,z?F? __00.3 ;?w,?.:?c ?? ? .,• c., .:i rr >>. ?? Inflow Storage u C- vF An ilov" Clu , i :nk r, L-- v _ 'lx ors _ {pubs (cis, ? (efs) (cYs OM 0.00 0 38, 3.00 . 0.00 0.00 0.1*) 0 ), n 0.00 0 30 .00 0.00 0.00 0.00 4.00 0,03 15 3e':: 00 0.00 0.00 0.00 6.00 0 ?2 «:x3 1.J 0.00 0.00 0.00 8.00 8. 3,162 '163 12 C 0.^0 07.04 10.00 `A 7 82,, 0 0. n:;0 0.19 12,00 14:00 1L7v J r 31 16.00 1.A ,-~'A 1.16 0.85 W:31 18.00 0.81 29,797 3F- = 15 0,87 0. 0.31 20,00 0.59 29,581 384'.13 0.64 O.34 030 22:70 0,54 29,400 364.13 0.55 0.24 0.30 2,1.00 0.49 29,316 3184.12 0.50 0.20 0.30 23.00 0,00 2!,082 384.05 0.30 0.00 030 28.00 0.00 24,93-1, 3033.5 030 0.00 0.30 30,00 0.00 22,825 303 °0 0.29 07.0)0 0.29 32.00 0.00 20,'146 383 81 0.29 0.^') 0.29 34.00 0.00 18,700 383.731 0.28 0.00 0.28 36.00 0.00 16,688 3S-;.e: 0 28 0.00 0.28 38.00 0.00 14,710 33,3x57 0.27 0.00 0.27 407.00 0.00 12,764 383.50 0.21 0.00 0,27 42,00 0.00 10,823 383.42 0.26 0.00 0.26 J ,.CO 0.00 9,058 383.35 0.23 0,00 0.23 413 00 0-00 7,566 38329 019 0:00 0.19 48.00 0.00 6,366 383.25 0.15 0,00 0.15 5 ').00 0.00 5,433 333.21 0.11 0,00 0.11 52.00 0.00 ? , 7 05 333.18 0.09 0.00 0.09 7%1..00 0.00 4' ,13 0 383:16 0.07 0:00 0.07 56 00 0-00 3,669 383.14 0.06 0.00 0.06 x;3,00 0,00 383.13 0:05 0.00 0.05 60.00 0.00 2,982 383.12 0.04 0 00 0.04 e ?.00 0.00 2,721 383.11 0.03 0.00 0.03 00 0,00 2.498 383.10 0.03 0.00 0.03 .00 OM 308 383.09 0.02 0.00 0.02 E'-C0 0.00 2,146 383.08 0.02 0.00 0.02 700 0.00 2,007 383.08 0.02 0.00 0.02 72.00 0.00 1,884 383.07 0.02 0.00 0,02 ? ?rrt Type// 24-; ir ? • ' l i [i s???=- ?" C K 7 FI NCH/ BOO _'Y ..a ° PCT e- a //±±,, i 3 g ??(t ? Y-, .._'s "7P.;Q, i7 . ?y ( rry 0.V Cfr 00. ,c G. 0 p 1-1 1986-' LJ3 h%?._. 1 I KN""C(,?1? 8 y P?Slpr `off ste.'. is 3/23/2'V'1 1 J ?. _?. o v P . Ii 7it via Area = 15..:1 a;; ? 9.Iy ?u.II,•-De ..y,.: 4.68" 54 .%.Ca rs, Volume= ;.2 7 a,7, Atten= 55%, L m a?s"Ce: n '•' rq,= i.'`i i JIE:S, Volume= 0.44 b Roj", - y `::tC -lr(: jtod, Time. S i)ar? 0.00-24.00 h F e_ Flee= t. S urf.Area= 2,290 sf c k, R C?k)w ( yin alo_'' ' .' c 5.248 of of inflo;.?, " C: rxof h`.w; .,.? r'+ir? { 815 « u.c } r -c oraqc- a .oc k e, X22 cr 1 L d below Elevt a- i c?n urf A-e 1n .. St r €J & r ? rU y Wet.A,ea -ft) (cubrG i ,, [ L;'C-fi t} `I .. V - 333.00 23,712 0 0 23,712 38400 ?7,9,e 7 25, 102 25,752 27,896 385.00 29,846 28,8ti 1 5", m 30,00 3186. C; 3 30,670 85,462 "17, ` 7 3 -53 ;`° 35 32,959 118 422 3 :'f , Boutin I „E, 1 O!!tiet Del':-- I Pre::r,a ,, CJva RCP, sq.cut end projecting, Ke= 0.500 J ` - 0.00857 n=0.013 Cc- 0,900 2 c! . I„=y 383.00' RCP, groove end projecting, Ke= 0.200 Outlci ICI ye% f' ''f, i 0.0200T n= 0.013 CC: 0. 00 3 Device 1 38,'10' ,t13' 0) 3- q'nn-j 4 Device 1 3S' 5e 2.00' _ .,i° I;r?E?. lot", Second&y '3Ei 15.0'to 3 (1 Lcw.ti. Pkn Head (fey) J. °0 0.f0 Ca.c 0,;' 1.C= .._ 1., ; 1, 0 2.UO 2,50 3.00 3.50 1 00 111.50 .C' i ..??+ (-nVII- r) 2.37 2._'I 2.70 2,6€1 2,68 2.67 2.65 2.65 2.65 2-35 2.66 1,'?_? 96i 2.72 2.76 2.83 i i i_ M-rx-51:06 cf 1 .el h'S HW=38617' pj's -ta (anki t C cis is 51,{16 cls { 7 "Cs 4fps) < 36.34 cfs potential flow) 1_ 4 22, i 0 cfs potential flora) K 0.40 cfs (r; 1.2.05 ,s HW=388.17' (Free U ;,_A-, } eI C or it r`:,r 0.40 i ?O t s) v- _ (s7,ii g iar ti° ?r ( Coryirois 0.00 Gfs) - - Type 11 4-hr Ra nfall= .: , -061 -,E i Pag- i 9rc^AG s F.? G'C??t?2i> 1986 G i3 ai?? cr?cn?mut¢?r `7 r_: r, IG 3/2312011 120 - )562 c;Fs +nflow r" - O °tr"jw oti . 100 95 E5 a 60 u' nf- 70 'J 45 I 3C 5. ! L'.4t r v_ 01 6 g 2 3 1 6 7 a 9 , 79 12 a 1, 18 20 imp ?n 1 _ . ®o f 1 Type Jl 24-hr 'a,.,.,'a._ 18x. I ivdruCANEO 7.00 stn 002626 @ 1'_ r 2003 ?I?; I``1CCoC;Ci"1 L!tPr r l 'il;> 3 /2 3? ' - OND Time 'nfi'.,15m St or a""ievaion ou, -;l,' ^+ }radar {hours} (c,,e _ fa -at) Cris; f? (cfs? 0.00 0 "1 0 83.00 0.00 0.00 0.00 0.00 0.00 0 383.00 0.00 0.00 0.00 1.60 0.00 0 333.00 0.00 0.00 0.00 2-40 0.04 13 3K 00 0.00 0.00 0.00 320 0.20 347 383.01 0.00 0.00 0.00 4.00 0.35 1,119 ' al 04 0.01 0:00 0.01 4.80 a ;;;-) 2,315 38:;.ra9 0.02 0.C0 0.02 5.60 0:69 3,932 3-53. i5 0.07 0 00 0.07 6.40 0 838 5,91°9 38:;.2: 0.13 G.00 0.13 7.2'? 1:06 8,228 333.32 0.21 0.00 0.21 8 00 125 10,877 383.42 0.27 0.00 0.27 8XIO 1.79 14,417 38,3 0.27 0.00 0.27 9.513 2.12 19,379 383. r fD 0:28 0.00 0,28 10.40 3.2? 26,150 334.^1 030 0.00 0.30 11.20 c'.DS 33,885 ?8 4,30 3 99 0.-1 12.00 w.1 f 87,395 ° INS IM 12.80 6.12 41,653 13,60 3.79 34,053 28 29 A 51 4.19 0.41 14.40 2.83 32,735 384 ?4 3.0 2.76 0.31 520 237 32,184 384 22 2.55 2.24 0.31 ', 3.00 1.92 31,689 38/1 21 2.09 1.78 0.31 16. B0 173 31,361 384.19 1.81 1.50 0.31 17.00 1.57 31,135 384.19 ; 5, 1:33 0.31 18.40 140 30,918 384.18 1A 117 0.31 19,20 1.2-1 30,703 384.17 132 1,01 0.31 20.00 1.08 30,487 384.16 1.15 0.85 0.31 20.80 1.03 30,359 384.16 1:06 0.75 0.31 21.60 1.00 30,293 384.16 1.02 072 0.31 22.40 0 97 30,230 384.16 0,99 0.68 0.31 23.20 C, 9 30,169 384,15 0.95 0.65 0.31 24.00 0.90 0, 9 07 384.15 U2 0.62 0.31 s?:c- ecr/,tar, -,cr z. rez,'a;? ece_? vm??ns ata? Ftnma ruti r:^a.a a'uu n V "d ..Lu1?J t -'3 .?fl :c/IF^i+-t 7 Hd?? I l l 'I vi Ocy 1 'o?y N.(m)- > 1?7i?c.? N! ? I NJI b' ?1? HJ iLN`w IW-Idca?JC7 '._G.,'J?.• ?V.'-•.w0. !i -kL C..: ?a"F ..: r'?L?J p t ? ?r fl 5 n? a r a _ D X i? `F i d 4 I ? v L te u ?- R - I F ,r r 1 I r ? f ,?I?? - - ? • ? ' ? ?, t ? by 1 ti III 41b ?. 0 1 5 - n5, A F rti I ? t 1 s ?t a?a •1 ? z. A - L . ? ? ?5 7 a I 1 _, ? ? y tr ?9 t < t I ' x • ! it r ' ) p t J I `i X32 1?4 ? 1 y ty? ? P ? -?? p ?3 gga 8? FH SE:cS:b itaU£U£?Ltdt20-9:1-505 ".,r: •. :NR'?P'IFBiEU!?45Wf3?WtNfLG?lLi lfU'F!51.. iGLL 1-WP i -.rt-vgerJP?!I522•S Ftl69t8M>9?IVS. caz= c?i ro xis rzr ?^ )a a I I ?,l r ?, ,r- M2P1Ff r fn" ' g _ 1 1 ,UL1 9..u 29 J. ? V 11^: ? I IY J- i J ? 7v R _ lr; ? ? ? ? L. II i I II' f C._ F ` ? rhr ?. ? -? 3h t,? f ? J? f 71 1 i ? ? i ICI [ ?I I? - v .. . - Ltt r f - ;? IIf f 7 r zry£` ta?4 e a ul - ?,_ ?? t o E f 9 li g f? 7? 3 n •h ?-1 E -ptJ e4a I I.? ?, I= i i ??} ? ] 7 g tl F R ? u 2 I 7 i fi b.` I'V" _ Y', Sr_ cKt ??= 8 7 s , F t y r ! r a s s? ?? k r { aJ ;. ?. =d 1 ud?'Nn::>TfotXC/E'bi?3a'F?sp¢-s¢?422Utfl-Tun'!'a+y'cr6i507?.tvwph+a-?.e?[wsM[? . ?.-:,sir:,,.. ar.-luy?ls6vglb+?NRrAQaul: Zt:>oW?R'a ?-?v ,itaUE/S: r t ._.in-so - ? Ib• 1 ?, J1 C ": QJ'J I _ r c ? I ? + I I I a r q l s -? - } -- a IF r ? ? E 5 ;i° a .. j ''-I F• V Y ? - - y? / ? v' ?I = a. i- p ?_r u i v, ?f u f I I ? ! IC {I ' E } t . ,.. wv?.s??rsxz?ztu?cktzza-?.?:xasseyx-nrw.'s?a?nezco?wa? zros?xzzxcvauxaaz+uux?mxw+?iao+?+,:?-zz?au?;a Perm;: (to be provided by DWQ) et ,e ! "in -r: I will beep a maint;-ra ce record on this BMP. This maintenance record will be kept in a log in a known !?e + ? L ton. Any deficient BMP elements nt i e in the inspection will be corrected, repaired cr replaced i ed- =.tely. These defici :, con affect the integrity of ; z., 'tares, safety of the pubL:c, <- „_ th-re moval efficiency of 'I-le BMP. The wet detention basin system is defined as the wet' det: i!,Joi? basin, pretreatment inclu,' ` rebays and the L.t Ied '', r a cr, i4_ prc? ided. h,:3 (check e® s u hoc--S not J!ITifoq ac G. f..1ee d' at tllr.' dD`r C one): 0 i.1bP? ®°3J 1ruC?t aji' arate y t- 11a i td tk1T_T i s! f(3rE'k?ay. I ImporLart maintenance procedures; Immediately after the wet detention N:.sirr is eE bhc;I ed, the p1 ants on the vegetated shelf and perimeter of e ! t ,h shop . L be watered ; v`ce weekly if needed, until the plants beccni i?`: istu al (commonly six ? ec,k,j. No po do of the wet dcr. nticr pond s'>jould be fertilized after 11e first initial z 1'7,,i zo-? that is re,o u, r d to establish the plants ? , n the vegetated shelf. `jta.,131e ;roundcover shn dd be maintained in the c Lr? .? . a >e area to reduce the sediment load to the wet detention basin.. If the basin must be &a-'-ned for an emergency or to perform maintenance, the flushing of sedime ' 4-c-n:g the emergency drain should be minimized to the maximum extent ni'ac; 71:aL Once a year, a dam s,ai?;,y expert should inspect the embankment. After &,e ?vef ctutention pond is established, it should I, ii?sp ec tPd oncc :, mn r within ?.4 t sc after every stor:u, event greater than 1.0 inC .; (04.1.5 niches i. Coastal C . Records of opc ,? fion and maintenance ho al I be kept in a knc 'n set location arcl must be available upon request. Il s ,« lion activi[ies shall be per',-)r A as follows. Any problems that are found shall b p j?,- 3ed ir?niediately. The a dire B P ®';'r;e s'erimeter of the wet basin Potential P' 3b !r'21-rs €r:` 1. -°e soil- and/or erosive gu .es have formed. Vegetation is too short or too HOW I rA it r n*c?l ?»? "ti1?o J.e,31 1pri. DernU e tl?? trash/ tc ??;;. _,_ Degrade : hue sail if nect,ss 7 y to remove the gully, and then , a grow" rat cover and water until it is e t.: bliLil,c1. PJ'ovide lame :r-,' a 071'-Etr o-? }rCir_i:?er ir???liw-estcl'_. Iyiaar.l ?_r. r; E 7 tsr!c = a ltt of aly six r Form SW401-Wet Dcc,ent_o„ E sin O&M-Rev.4 Page 2 of 4 c 1 m _, umber: (to be provided by D HJQ) Drainage Area Number: ? ieT13:?,aI I'D!, ` t_; ;C II: I Iw"l reF?'v=.u:.l_aic it TJ inr_Ld eT('.o Li.pl_ x- The p7 5( ¢' _C swale - The pipe is cracked or 1 c7 T e 0,(- otherwise damaged, Erosion is occurring in the TZ2 ade rIle swale if necessary to Swale. sr'nf l ik Ova 'i' FT-c4 nrcvi o o-osion -m-Iii-o" t,,,Aices 4 lcll as : :,i(oiced turc: r_ora;- 9.a avoid hi_r, r oLieirns, 3therosion. The forebay S? C MILL IYt 1) ; ,.(7:-? iriiulatedto rc r for the source of the 'i iej:iii frc: i _ t7iar -lie ,e('_unent and remedy the problem if origiTVI ({?S , l,_,pt_i for possible. Remove f?- - sediment and sedi en st < - e. dispose of it in e , t f r "on cohere it will not cause imp,os to streams or the BMP. Erosion has occurred,. I''ovi to additional erosion P c?-ec`aoii such as reinforced turf r- a rLerg or riprap if needed to Prevent future erosion problems. Weeds are present. 1",f'- ove the weeds, preferably by h iid. If : P?ticide is useC; Wipe it on the p Lint; c ,riet, than sr. a UI T <getuu2d shelf Best professional practices Prua i(c:o-ct+'ig to best pr., sessional show that pruning is needed practices to maintain optimal plant health. Plants are dead, diseased or Dete L': e the source of 'she dying. probe em, soils, hydrology-, disease, etc. Ke reedy the _id replac` plants. Pr v l(1+1 a one-time f n'Li 7e i' ,:ppli ati:-,.ri 'o establish the groa_ul cover if cB sn.:_ tens', indicates it f471C". Needs are present. Re--nj c, ° 1;e v,, ee,,k, preferably by 7ciCe is Li sec, '3 41'ipe it on the -slants rather than s ; ray in The main treatment area Set' i-neri has accumulated to Search for the source of the a d sip 73gent and remedy the z cr l >m if i,ri? ?= ci?_?brt s? + '' (".fit r:r;sil?le. Remoe?? tl?e s:?cl;i,?t=rat r stor. jc dep?h. &spose of it in a :<>c [it ui s< ,; f f= a; yr ill not eau ( i l iii r?; to !rear s or Algal;; i v t"t covers over C-) isult a professional to remove FOL, „f Lhe area. and control the a'21 rov th CaL -aI IS, r' } a<,mites or other . Remove the plants by tl-em inx, si } iIs cover 50% of with pesticide (c? 'sot spray). the baG;3 Face. Form SW401-Wet Detention r>d. i ; OSA-Rev.4 Page 2 of Permit Number: 0 he j), ovi sled by L)WQ) BA4P Pr 6231, s t' ?' ee ill -{ 1? ° 'i Vv' 1 1 3 ??raent Shrulbs to grow r s e1n ° on the e+iiI,, anent. Evidence of n t or Use traps to remo-v., muskrats and beaver activity i ,ep t. consult a f o -sio, gal to remove leavers. tre --T, yS S is>.:'" i,;7 grow on Consult a ( ^ sefety specialist to ti crE,'a. ?_.cment. remove t?t,_, : =e. An e) f ;, a. inspection by an Mai . , a H d repairs. apprc;p_lateprofes_JcE I shows that the cmll?in- ,,,i needs re air. it a ppI_'. e Ilr'e zi , - sic-;-i,ce Clogging has occurred. Clean out the outlet device. D pase _ of the sediment off-sic, '1C c _:4I`t c'evice is lama ed Repair or replace I to , L_ 11et de ce The receiving water E-..si jo :)r other signs of vi . Contact the h cal NC L`ivision of di-,n t_Lge 1,Liwo oc.:L. rrecd at the Water C a. 7 gional Office, or the 401 GvcUnit at 919-733- 1'786. The measuring device used to d°`er-? Ane the sediment elevation shall be such that it will give an accurate dept -i reading; and not readily penetj-- t,_• Lito accumulated sediments. When the permanent pool depth reads Aft feet i the main pond, the sec'i ,,zrt shall be removed. When the permanent pool depth reads Oft feet in the forebay, the sediment shall be :'_,i- roved. (1111 i-r the b1c<,7ks)- SQIi ,scat Removal Bottom 319.00 I•+O EBAY /-ft Min. "eci -r? art `Lirl'?',7e Pool Permanent Pool Elevation 3,)3.;;Ci 11 T -----Sediment Removal Elevation 379.00 -" - Volume ti 15c n=1ev :i.c; t ,7$.00 `?'i'c:]]-r?ilt MAIN POND Form SW401-Wet Detention Basin O&M-Rev.4 Page 3 of 4 Permit Number: (to be provided by DWQ) I ail r ;a It(] ge and agree by m, below that I am responsible for the I55. t I ,? of the l stcd air.}ve. I agree to notify A`r? F wi_h the t praur a ci?V Janges u, ilrc system orrespor, 't,`, Y. Project name: er _r, rt II o,1 -1 .; t, C!cnter, Fuguay-arina NC MP drainage area number F i, 1i lj: ' `t+ J,1-1?': atC "end Print name: 0 l _` 11 t c( Title: GL VA Address: - 2 t: Phone: 1v Sign,ltul Date; !- Note: The legally responsible party should not be a homeowners association unless more than 54%m of the lots have bccn scid and a resident of the subdivision has been named the president. a Notary Pub':c for he Stat of `wJ t ? Cpl tU t't' County f do he aby een+ "Y V-at ?4 . K i AJ personally appeared before me this ° day of tit E a d > an.? acc k=,c,wj?T dge the u>? c cc:rt ;:io of €?, forgoing wet detention basin maintenance requ ements. Wit. oss nv h-lid oils vial seal, ? "?8C559 ??? ?Ofdil?dllS5i0fi ? EXPIRtS ^a?d0,2nr? SEAL My commission expires Dorm SW4ol-Wet Detention Fusin O&M-Rev,4 Page 4 of 4 George Finch I Clancy cnd Associates, P.A. 239 North Boylan ,veriL?e cE -Igh, NC 27606-1402 _ Fosf Off:ce, pox 10472 rle' ,1? NC 2%:,05-0472 7919` 3-122 F 9199 3334-3?Q , 6 ? I.. I i F gioT al C,i kiv Pr' ° C A++n. Joscoh (7-y(7mfi Mr. Gyamfi W have a+lcched a co;u e' of the Declaration that has deve,op;-- for the G c4 e <e4tion 11 C'c: r• r n rdial Cer;tl: , for your records, T E :;vbIr:er he moved ahead to develop on actual Fo. m which will be used cs pc r UI Documents included in (AJ their uture lurid sales. You will not -- i,-Ic:j: ffs ? vvent contains all of the S De,,?c i Restrictions/ Protective Cove i-(:mfs, (bR/PC) of the DWQ 401 Express Permit Form for Storrnwater F pp, icci tier (Version 1). The first (DR/PCB is provided in 'Do- -rc i fan Sec *,Dn 1 of the sjL-)rf;°1 ?. Form.. Tl e second ( R/PC) is provided in i)CC.(M !k)1 sec on 3 of the ubrn4`t(7;c :orm. Th it ird (DR/PC) is pry-,. ` 1 Fx" irJt C, Sec Ion I of the Form. The fourth (DR/PC) is provided 'In 1,4? ?_ , a;?c r«, i The fifth (D /PC) is provided 'i-i FA'iibit C, Section 3. The, s x ?i (oR/PC) i pro is e din L-\hiUJ C, Section 4. The s? >c:1th (DR/PC) is p cn/ided '; . Exhibit C, Section a, and the,eighth (DR/PC) is provic ? in Deciaraticn Seelan . The legal Description for thre -' -c'ect Prom=-ty, as it currently . ^, h(-,s not been eve loped at thl? +irn: SO C :;!c;sc r f? io, is !eft out of this Form. A D=s riRj on, refleca;ng the ovE't ;)Co:c z_ kryil is. + °iy heir developed Qnd ready and included i< 1 ilPls ticr'n, 10 be rem- ded, by the time of the Pr+p(t - 'zi 'lust sale, D or; `4iggins, GF/BA, PA'' i Pr,:)ared By: P-?uoic and Return To: S. Todd Adams, Esq. Adams, I'avvell 1<. ?iz(-mare, P.A. 940 SE Cur ' v part ;ay, Ste. 102 Carv_ NC? ? 181 THIS DECLARATION COV, i?A TIS , -,c? xation") is made as of this day of -- ? 11 by Generation Cup - i, ..,LC, a North Carolina limited liability company ( _: ?- ire'-A"). ?J?a 'E l Declarant is the owner of that ceFtail n real pr+ 40 cof?Laining al?p ro:: a ? e 1 y .303,2-3 (kc-res low rJ mji ,Wake orarty, "ioi-tl: '"arolins :Is sho,vn on the att,:?v =ed Ci?llll l A w;Ad more i{ .. ? li gT ro(: 'J'bed on )%i1)i1 B 'ttached to this D •ociaration (tht ls and U,-LAS, " :!,-,r-nt wishes to subject the Properly to certain restrictions as s -l' _^rt? herein. I?T('e'° , t L'v t , Ny ?;1ral , declares as fol!,°=:rs. 1. I roc t,c;??s -L' <e fir ,pcT y Fhali lbe sub J ,,ct t?; the use restrrc-ions ;set forth car Exhibit atta&°e [-ev; tea in or&-r to ensure on-goisig coinp iar,,-, , ?jril rl ' a 1iparian .'But _Ie1 Aut ori7a-do-i arl/or Water Quality r .Y..,al Cc, 'ff ai-on -tu arr<F qfs) as issued by _ha Division of Water Quality kD`V Q) fior uhe ;3rfuJ ?,t l ."jt3?:, I> as 2. R'u,Inin ; with !?n M Barth in this TAecl *-ation are rtcnd°F= to be ^md shall ?e construed as rU?ET113" ?; i el b 7°aperty end sl : i be 7`rdi g on Dec,'a-,r 1's sucne-giors and :assigns, T s .a-)t be t m lsle.t'. on ithcut the coriser', oi'tlr c1vv9 ler(s) from time to tirric ,,-, 011(. 3. Enforcement. The covenants aria' a= re errerls sl_all be enforceable by the Owner by suit for specific perform w e(; ai-, i ?,r , . _,;.W in ? on to any other by law or eq I': iy t,?h? pt ? j9 1 e tlt C1 °v T1sC i1 ' __ ?}S .1 ? .'t('. t5 othV-x costs {.' - =s thereof St?!, -f ort1:. C f'S c these covenants io. wF°'tc i:antaincornp"I'?.Y ce-.1vit {ix' W - , `s J ryv4zafl atflCS ?. c i?I v rot be alter, C ? iat * 3, y:. "1ae31 i?'secA of fht Fiat= -) 1?T 3T.Ia C irolina, SwJv1^? ?"iis Declaration has been made as of the day and year first ?t rT: a 1Jji--Ii Carolina lirr° I li.' mpany By: Name: Title: : { fT'jjofth Carolina unty of ,. a Notary i.. _r J;Zv t f^ a'.r7 d. f i, sCe ll State and CountF? c, that perso all ?? is aay w d gcknowledged 1 . of r..,:?-,i-ation H Carolina, T , a I oT-irt an ^uir . ? ? ; ? . r 1 f 6?l; l y <<. ,^, r t? r; y, and that ' T . i ?,on ly duly given and as the act of the li-i o? J it y- L ompay, iy, 61?, instrument was s; rfed icy the j t', : -? of tl'F al?.Y?li iii bility c , i1,ca y, IT = -;, _ny haLa anj o`,Ec al stamp or seal, this the day of ? 2011. My cci v_k;Lssion expires: Notary Public E '1 A d` I l i I I ri ^ J r4 ` I ® I ? S \ g j 6 - J 17 a ? A o J i I ? /I III 1 ' - ! J ? J i? a J i ? ? 7 a ? 4r 4 1 f\: D 3 EY-RIBIT C 1. V < a ; i . "d1owable " -a- c u Area. A. TIP F ; nurn aiEmva,-',f ,--ervlous area (s7iuare feet) T r' :' oes?ra s: ?.V r I'_ ,I]'' " -1 - W i® Tk;t :"s :? 1 ?: ? ppqqr 8ry :,i P rr ..S ? y ? Area: T 07 .,Total Lot Are-::i° 6R' m 5E .=0.sr/PZ4 -c. Deve lo c?r-en Area. 9n ;7 .14wr s A i-? ,??i r ? 74:3..5 f_?- f ? k.r' Car: ^ ? j y € ?.S... Area L ( L'?;6): g:,3a ? 5.83 F/o.4-R+ttf.c eNy }y ? Vv DandfoS Area- ry t ;elgl ) ?81?6 fj? LOT 88.Total /v e,^",,; P.S. 121,2`jC-.55sflo.28ae. U< s_.., . A.? oa: 1j5,M8 .6s '1.51ac. LC- TOM Lot Area: ©evelmi IJ? ., i1 I.S.l93LI i 5?Jt=; -r,,OS Area. LOT Tt'f P. g1 °, a 5uf _"ec/05 1"'reae a -.Total Lot eC Develo,,- r at A,,, I.S Ut, At ( a P.S. Area A 4.e 'I ? ?•. a? rc"a? ? ?? ?? ?+^'1?. _? ? I"? - `;???I???°r-'' ?k ..:3t _ r ?' ' "1 ; ¢'],1?; '?E Js -.: a it . _ 3rr Lei Iu, L? ?d?a Co Im' ? -tateria' -at cio nc r n o: sWT11. ?t; u:a?rl o b a_ a I all not ; F 1,-6 in, piped or It r.. 4,.c ssary to rovi ? .ix e- way e? OL S 1; n , 5 tt?1 j3£E ] "17t'_"Q amount x'111=sS a water n" "E c,e wl on. 4. All permitted outpa ?- 'a ]:s or f71t17? e deje. Cl rt 3ti3 llb ' C?P? ect° . tC1 +Ilf' permltIA Sto.-m'.• ;ortrol system. rC ese miz o t oils o the, star=-jivvt?ter Coi,,tj -v tim shall Fe perfb,-oief. 111 n ; _?- th t n3aT?1 r ° :S tface -and perf( min .+.n.;t' of the S,v i { Ali" approved s'-oi-o:WaLd>'r i:refi%''nent f„ 3 ,::, sc/ rnrvv?tc-, e a?;ements and d1ra'i?c. patterns Must be ma'llta'PAAodl . ? ]P'rq _uf a, A1teratlc o-;f Oie dT-Ena,- ; 5,'St°i11F'S on t1u€ approved g?!2_I1 S lei °g` iid)f" t i p s?lc ?di? :",, & co%1cni-rcrz of thr- Di`. Isic 1 of AI-a er Quality, t March 29, 2007 a11. i r cl Julie HEIGIA A tJ 1«1`; ii 2731 N. Norwood Arlington, VA 22207 "..'9Al.a.L':,MENT Cf. R,-7AN Re; Report of Subsurface Investigation Proposed Sunset Lake Road Retail Facility Fuquay-V__i,, Hna, Forth Carolina GeoTechiio ',e.s. Pro;,cct No. 1-07-0302-EA Gentlemen 3200 Wellir [on Court, Suite G Raleigh, North Carolina 27615 919-954-1514 Fax 919-954-1428 GeoTechnolu rtes, Inc. has completed the authorized investigation to evaluate subsurface soil conditions for the Sunset Lakc food retail fac J"-* ;Poposed for construction in Fuquay-Varina, North Carc,?itia, Subsurface conditions at the si-'?, Derr, investigated by drilUng lb soil test borings at the approximate locations shown on the attached Figure 1. 7: e iborli,,q locations ,c c established ir, the field a<,1i; +n GPS coordinates scaled from a site phis i, <utt ] ',.h(,-refore the locations should be considered ap ru?,,= a,ate. The test borings were extender to depths ringing from apf )?imLtely 10 to 40 feet balow site grade JA th standard pane: i-ic,n test proced :its rformcd at selected in'c;w ds to evaluate the Art sisic .cy :end density of the subsurface so is d li s repo" t preserits ins 4s of the invest gaJ,-,T and our recommendations concerning site guid'i;g and found--I ion SITE AND PROJECT INFORMATION "1 tic; proposed project will involve construction of a retail development on the west side of Sunset Lake Road in ,quay-Varina, North Carolina. At the time of,") ur swdb the site was undeveloped and co-, :;:stud primarily ofp--evo,sly cultivated farm fields. One unoccupied sin,Yle rami;ti ies_dence existed on the eastern portion of the site adjacc,.t to Sunset Lake Road. Addi lonally, some N oodlar:cls existed within the central portion of the site. No topogrufil_c information was available} hog vever, the she appuardd o be relatively flat. The proposed project will involve construction of a retail deve,.ot 7ner_t. No conceptual plan has been developed !2t this time; however, based on our discussions with Don Wiggins at George Finch/Boney Associates, we uncle s ar;d tl ?;.t the project will likely involve a series of retail shops. We are expecting that the shops will likely be n? e ;:o;y development supported on Ziallow foundations and slab-on-grade. Typical construction for these tyre ut prc,,ects involves masonry load be,;rin walls with interior columns. Typical wall and column loads are genera ly in the range of 3 to S kips pc r linear foot (klf) tnd 50 to 75 kips, respectively. No information regarding site grading has been developed at this Fame; however, `tie tine anticipating that cut and fill depths will not exceed approximately 5 to 10 feet. Geotechnicat and Construction Materials 1 erv. 11 Sunset Lake ?-oad Retail Fac y R/(arch , 2p:1! P'' In addition to the re ail development, we understand that the project vPill afro include an extension of Products Drive through the s'le, Products Drive will ha dle the traffic vol <m. gc,-;; tic;"'l from the new retail develo ;_e;rr but will also be extended to serve as a possible connector road scale c ;r: the future. Based on our discus;io s with pe inmel at mesl :- Asso;c'iates, we understand that the 1,s°e e c_a-'ly traffic generated from ? h?, ?1 reas atail r, coli? i:utor ,ill be approximl;ely 6,500 average daily trips (ADT) per day, f owever, if the road is from _ ?-`i eet, traffic volumes of up to 10,000 ADT's can be expectedd.. AREA EOL- The project site is located within Fuquay-Varina, North Carolina which is located aloe the edge of the boundary between the Piedmont and Coastal Plain Geologic Formations. The actual project site appears to be -hated within the Coastal Plain Physiographic and Geologic Province in an area identified on the geologic map of North Carolina as being comprised of the Middendorf Formation, Near surface sediments generally consist of sands, silts, and clays which have been deposited lluvially, The underlying Middendorf Formation is typically comprised of gray to pale gray and orange mudstones, s?tads, ar,d sandstones. These materials have been dated to the Cretaceous Period. Th s Coastal Plain Formation, in isle site is located, is generally characterized by a flatter more subdued is associated with the significant erosion, including migration of the shoreline in the geologic pa;i: S, U B SURF AC Gtr' I T r N-S Genera'i7,M ,.?bsurfacc profiles prepared from the test boring data are attached to this report as Figures 2A and 2B to graphically illustrate subsr?-,Face conditions encountered at the different locations of the site, More detailed descrrptiuns of the conditions (?,ncountercd at the individual boring locations are then presented on the attached records. Subsurface condlt;,-ris on the site are characterized by the presence of some near surface topsoil which varies from being none. scent in some areas to as much as 12 to 30 inches in the vicinity of borings B- 5 and Bn6. The deeper topsoil thicknesses arc. L'., ely associated wi'h previous land clearing that have been pushed nt=? a lower wet area with ^ the wooded pe,-tion of the site. Generr !ly, topsoil thicknesses over the ma ?^sity r f it site are typically less ^ ra_? G inches. ! r lei-y ir7 the topsoil, the majority of the bo in G encountered ilcai- 2 3 a e silty sands which exhibited penetration reslst t?,;tus typically in the range of2 to 9 blows per foot (bpi:) the upper 3 feet. With in :rcasiTr , depth, the perk, l`i'on resistances typically increa cd, and the soil T ,. r ;: - transition into clayey san { nd sandy clay interspersed with strata of silty sa:-cis, r' ;netration resistances ith n the soils below 3 feet wcrc `zunerally in the range of'7 to 30 bpf; h ?1, v r, sc` cral zones of softer soil with pciictration resistances of 3 to 5 t?pr ,eac also encountered in some of I '-,c 'oor lags. The majority of the borings were terminated at depths of approximai4iy 10 to 20 feet below grade witr_ia tli c sandy and clayey soils. 1=iowe cr, boring B-10 was etc a ed Lo a depth of 40 feet below grade in order to evt lyd4tc the deep._r sons 1"ith regard to sci.smic design c: lt.ria. That boring encountered sandy and clayey soils to app :_riately 40 fc t si iil_ the clays becoming v<ry hard ?,tid having peneuation resistances in w s of 100 bpf at approxinr',i,Jy 40 feet. Based on our c ;f unc Ole high pr n ?t n to sistances enc:c rrt?:rcd in the base of that hole are 111Lely associated with the top of tl?o t; rde;',, 3.?, rock Purr.;?ticn. Groundwater was encountered at d,, pths varying from 0 to 11.6 feet below Qrode, in the borings at the time of boring completion. However, i-L ,hculd be noted that the near surface soils at "the site are conducive to the erne - a-' Co. Sunset Lake Road P.c I L- ility March 22, 2007 Pag.P: 3 te,r:porarv developmen_ of perched groundwater conditions during periods of wet weather, and that ?uradwater u'l-e dltdifferent pci',o<is p`theyear, OiOi h f X Th,' tr 'lu-,ling re o .Fnerdations are tPon a revici,Y of the ^1 a6-.; d boring data, our Under°- n0l. , `. the pr mos,.ci construction, l }past uxperkciice with sirri'af proje:Cts an-J subsurEoe conditions. Once ?i'c grading, a,,-,J, ;,u c r;,:rl plans are airai aLle, we viould appreciate ut_;ig nlfov.llil. d ,rith tha information so that these recommendaii >ns may be con! ?n fed, extended, c,, modifat d is r c c ss ?.. A?:d%ti4fiadly, should sut st . `3i: ` conditions adverse to those i dlicnied by this re[),-) t be encountered during construction those difrere.ices should be reported to us f t c v ieF: si,r? comment. Site Grading Consider [::ins. Subsurface conditions encountered during E r in es i;gation appear ,adequate for the proposed constructic?,, i iowever, the results of our borings and. a probe roe' ?>>s;?:a.iE:?n of the sit fc-%r,?,ed with a half inch diaf r :er roc lndica s tlr the near surface soils in mes4 srI-eas of t'-c, site are very loos(?u depths of between 6 to 10 i0chr,, site `CrtEde. The depth of soft soil increases in some of Cic lower e1e, tt , ,,,: o-I she property and in most of tare previously cultivated fields. Because the near surface very loose are mo sture seiis?tive, we recommend that grading be scheduled during the warmer summer rro-fths of the year when higher a ninicrt. air temperatures generally result i lower near surface moisture ecnterrr.s V h ch will greatly facilitate g;-ading operations. Site grading should begin with the removal of all topsoil and vegetarion from proposed pavement and building areas. As previously discussed, we ar:ticipate that topsoil thicknesses will generally `?c less than 6 inches although s~-ne thicker topsoil shoAc be cxp; c.ed in the lower lying areas of the site. The clear-ing operations will also reouire ;lernolition of the n` orr s -c struc'uro as well as removal of the septic field and septic systems for that st; a, Any excavations are made m remove 6-rr.s such as underground tanks or septic systems should be .: .luated by an enginee p-ior to bac fi"U)- (tj _ j drat no subgrade repairs are required. r?nce at, stripping operations are cr rt feted, we recommend that those areas at grade or 1e„s;na ed to receive fill he proofrolled with Li partially leaded dump trick or similar piece of rubber tired equipmea t. Any area which ruts or pumps excessively in the, o;)itrion of the cr rcc, sl},uld be undercut to firm bearing or as directed by the engineer. Based on the r(.sol-.s r;f the soil test b p'r vbe,`lts that subg-rage improvements will be r,??luired over the majority of the site. he?,e repa°-s c:Xn be br_a ,y `ab11.. eel by excavating some ditches in ?!', s,? of clearing operations to help lower groundwater levels, 1 rticularly in the ?over lying north central portL a the site. The effectiveness of ditching the site will be dependent upon whether or riot a good outfall point exists. Once the a±' rrp'Aig op ; a['o is have been completed, we rep o n-1-r,nd that consideration be given to densifying the upper to feet over the majority of areas which will ether be fined of exist r ci . It appears that the majority of the subgrades can likely be dcarsitied r:y vibratory compaction of the loose ?ace surface sands. However, some areas of soft near surface cl"}s cis. c:<ci -hk .e discing, drying; and recom.? .tion with a sheep's foot roller may be required. Approximately 75u of tIre subgrades are expected to 1; L.r r 7;lar soils which will resp,)nd -avorably to vibratory densifcation. We recommend utilizing a large vibratory ro:ler having a minimum weight of 10 tons which should make at least four overlapping passes, in alternate directions across V-i exposed subgrades. The compactor should operate at a walking speed wit? the vibrator engaged during the de .s ffcation operations. S_.,:setLao<' R ad Retail 1 c;ility 4 The. on-site soils, with the exception of topso,-1, will be suitable for reuse as structural fill o[i ``lc: site. If any additions cuff--site borrow material is needed, we rc;c >r i, :-,(nr1 those materials consist of silty and clayey sands or low 1, as1i_iy 'gilts and clays with Unified Soil Class t ic;aiiins of SM, SC, ML, and CL. All fill material placed o the s s--u- be compac 6 d to a minimum of 95%, t i:. standard Proctor maxims rn dry density except in the fiE-? 11 '"ot and -oo: slabs whr °c h.: rc;quirement should be incre _5 r' to d? S°-'? of the standard Pi°i %t^t' TTa:; inlt.rs t c-i? 1tz-_ `,Vt: rC cJ:7nme'-id that all '.l l ' 7terial be moisture cc iditioned to ':I ithin 2%n of opl ii7luri mois'li-C; coi,ioiu (o fa _lIt_il.r 'o(,,li,actlon opercjtio??s and to maintain stability of Lr'e t'l sccl'ou. We re o is nd that ii -1' rie.,.sity to (' i;e p '`v?-filed during; the winpaction operations to verity t = r the roquired dcLrwe of compaction °s being ac eci. Lei -icult Excavation Considerations. Based on !?,a results of the soil test 'x>:"i sli 7'_ow rock was not encountei-,--d on the site, and we do not anticipate thG ? di_ffic'llt excavation will `lc a consideration, We anticipate that all utility excavations can likely be completed utilizing, conventional rtibb :r !,'red backhoes or track mounted excavators. Four align Support ?'oi:siderations. Subsurface conditions on this site appear favorable for t-.: T^ , of shallow spread footing fort dattons to support the proposed structures provided that areas of the builds t. i e[ W grade will be raised are filled 1-i a controlled manner, and that areas that currently exist ie<J finished grade are properly repaired. We recommend that foundations bearing in properly compacted fill naraerials or in approved residual soils be designed fora allowable bearing pressure of 500 psf bearing a minimum c`' 12 inches below anal grade for frost pr cLCtion. We strongly recommend :1=at bearing conditions be inspected by a geot.-c li ,tt a .mgineer to verify that adequate bearing and suita't;_c materials have been enco i_i3 ac 1. Should forme;:itioi?s d to be extended to provide adequate bearing, we -:;commend that over-excavatccr -F otings be a(-ki-_Hed to d ;ign bearing elevation :utilizing uniformly graded #57 or #67 washed stone or concrete. w°der to etc=tc-_nim- preliminary serlcagent estimates for the project, GeoTechnologies utilized the F procedure %,,,hick cor?lates material tyrwc 'i id penetration resistances to estimated soil compressibility. GeoTec',nologies revie%ved the soil test n,,-rim, daltJ i,rd clic-)se borings B-;1 and B-S to perform the analysis. Boring B-1 represents some of the more favorable sTibs[[' f c cn ditici?.s on the site, while boring B-8 represents one of the areas with looser soils. The analysis is based on the assumption that the very loose sands which exist within the upper 2 to 3 feet of the site are properly densified as previously discussed d trip i,c? trig ! grading operations. ProvJding these repairs are properly implemented, the results of our calculations inc,.Icatc, ciat column loads of up Lu 60 kips at boring B-8 wi)1 resit t in total setfl_cni.:nts of approximately 1 inch wh lc column loads of over 100 kips can be supported ai bo-rii;- R-l with total se±(lei ,? i_s r;;.naimng under l i,,c . 11.i ur_ntial settlements are expected to be approxima.c:ly erne half this magnicudc If column loads will rDe i,lr lcr than 60 kips, stone replacement techniques can be utilized to lo r total settlements at selected Muni f- 4is needed. If provided with a schedule of column loads, along with proposed bearing depths, GeoTechno:o-,- .c, will be happy to evaluate methods for reducing total settlements as Gina - A. GeoTeehnologies also evaluated ;[,ia_r te,1 settlement of wall footings As previously discussed, bor: lgs 13- I and B-8 '«'e e ,.,luated. T---- results of tflose ;ale ulations indicate that wall 1?,o6 g widths of approximately 2 to 2.5 feet i i:p to ? ;:1 1 w, l resclt in total s ttl?;nc: ri of less than I inch. Ditterentiai settlements are e.>-necrecl Tu, be approxi ateiy oi?e halt i i_s magnitude. As previously discussed, tills assumes that the very loo -,e x ds ?i itltin the upper 2 to 3 feet are properly repaired d i sir . i ,itial grading op( buns. Based on these settlemc i t est' iitc s, we do not anticipate that significant repairs will b'- required for wall tooLi_rg foundations. 1- ? ° na!c-Zalicima' l^. 1 1?t ent Co. ur.se( Lake Road Retail Facility t; rc« 2i, 2007 Approved residual soils or compacted structural 11 Nvill pro' id° adequate support for conventional concrete slab-OD-grades. Any fill materials placed beneath slab shoul')c' ompacte+_ to a minimum of 98% of the standard Proctor maximum dry density in the final fo+ beneath the slab. We iec m end that Al slabs be p )perly jointed ii,. a C:_Y' .l {,Ice with ACI guidelines to help control shrinkage Zkdditiona:ly, all joints ,l o-Y be sawed to a d -, h of at least one-third of the slab thr4': : ss V,'e recommend , <<s water'ccr.?r3t ratios be (;ar-cfudly controlle:l to t c-lp ,educe the magnitude of concrete shr nl :;,-e which occurs. Pavcngenr G ,ig Considerations. In w e'er to evaluate pa j ,;e,:n# sect?nns for the project, Ge4Technologies reviewed a traff,: c val sati^ performed by ,j: rsc° rival with Rams '-y Xcm? & As;;ocia es. Based on the results of that analysis, it is estimak,;d that the retail cc-icr will generate approximatc,h, 6,500 AD-.-"s per day. However, personnel with Ramey Kemp & Associaws indicate t1 ar tLe road may : veri `uaily b(, c:o _r?tc;:ed through as a collector road and that traffic volumes could increase tc; 10,000 ADT's s o:ald the road end up serving as a cut through oa-3. As such, GeoTechno(?t presenting several pavement sections which will include accom .ova'- ` onl €a _ciierited ho$. i . .titail center as well as additional traffic which could be expected should the roadd be exte i,'ec, ,.rough as a collector road. In order to evaluate subgrade sup) of t characteristics, GeoTechnologies completed one standard Proctor compaction and California ?, afir_g Ratio (CRR) test on a representative sample from the site. The results of that analysis indicate a measurccf CPi" value. of ux sts for the granular soils which exist on this site. However, no grading plan has been establ:s M at this tIme, and it is possible that portions or the site may receive some cut which could expose the clayev s0iN. 1 K'si within some areas. The clayey so_ls twill typically exhibit a CBR value of no mo : a,,p ,):J at,_ 8°,:. Therefore, we recommend utilizinb a deign C BR value of % for constniction ofpav{n _'t:nts on this site The results of our pavement design calculations indicate that an appropriate pavement section for Products Drive if sabjec° only to the traffic volumes generated by the new retail cent(,-- -uld txv 4 inches of d.;6)hnN }i c r 10 inches of CABC base co-Lirse stone. In less traveled areas such as prim,--y dr- v L, e:1s Vvirhi the retail center, `tae section could be reduce: r' to 3 inches of asphalt overlying 10 inches of st._ rwevwr, the heavier section is still recommended for trucl leading areas. If the parking z t ' F- , ,ration will b ouch that heavy trucks would not be expected to cut across pa king hots, the pavement section within car parking stalls could be reduced to 2 inches of asphalt overlying 6 rncf s of stone. If Products Drive wj`. be extended through such that it could eventually be sub acted to ADT's vo<,'Inies of 10,000 vehicles pcr 'My, our calculations indicate that an appropriate pavement section v ould still consist of 4 inches of asphalt ovc (ig 10 inches of CABC base course stone. We recommend that all asphalt and stone materials comply with h1" SOT specifications with regard to both material composition (including gradation) and compaction requirements. The _m-? t i-;iportant factors affecting pav Went life in the area of the site are the condition ot, di(, subgrade immediately p (-w to base course stone placcirt:_ir. and post coustruction drainage. As previousc discussed, we recommend tliat the subgrade of all pavement rca3 be proof.,)?1FCi and that a ---v yielding e identified and repa ire d during the initial grading operations. Additiunally, all suba'C;Aria soils should be reco_npa :ted to a minimum t "'°00 of standard Proctor maximum dry Oonsity imme, ratk, ;y prior to lase cou_ stio- placement. We reel -.mend ,lrat all pavement areas be properly graded to promote nin-off of water and to pr ,v(-nt ponding of water on the pavement surface which can lead to eventual saturation of subgrade sails and the loss t)f pavement support. Perched water is a problem in this geologic formation and drainage swales or french drains should be used on the uphill side of paved areas to prevent saturation of pavement subgrades during the wetter periods of the year. I?erTTl [Y4f",;?licind l?1" fi .f co. Sunset U) L., Read Retail f-3, ilirv Marc!, 221. 2007 Page: Slope Stability. At the time that this report was issued, GeoTecl+nr ogies 1 c? not yet been provided with any ii,C,rination regancEng proposed slopes for the site. Once details rega.(_img rt_L proposed slonts hive become more Imalized, Ge_)Tec.]-iii,1ogies s ;ld be provided with that informatio: 1710 th t appropriate :«b-_( analysis and recommendations to improve ,1_-;i,e s?aibility can be provided. Seismic DesigLi Considerations. GeoTechnologies evaluated seismic design criteria on the s? C)con ;7i?, a? one soil test boring to a depth of 40 feet below grad: 4vhere the top of PWR or rock was enc:?ar '°re Based o 1i the results of that test boring, as well as o' X review of the North Carolina Building Code, it appeals that the on-site soil c:ond will result in a seismic s to (la.ssification of "D" for the proposed development. I -'T In summary, subsurface conditions on the sitid appear suitable for the proposed development. The c.I . ite soils are somewhat moisture sensitive and then, I'() we recommend that site grading be completed &° T ° ; tr^ warmer summer months of the year when hjp"iie' ambient air temperatures will result in lower nea-, s, , :,ze moisture contents. Ad_1it_o_-,a1ly, the upper ' to 3 feet over the majority of the site consists of very loose sands which will require some i-- ifi, ation 033 Ping the initial grading operations. F77 h groundwater conditions exist in some areas, and it v ould iLd'e grading operations to excavate some drain age..'` tt ;hes through the site provided a positive downgra{ t utf Lil point can be identified. Structures on thA 5.te ciln be supported on conventional shallow spread f t, d wall footing foundations designed for a maxii..U a a_iowable bearing p-:assure of 2,540 psf; Column loads i . ?e range of 60 to 100 kips can ?c utilized without total ;c!',o ncnts exceeding 1 inch. If more c or,: ,°ntmrted loads will exist in some areas. sto •e °-eplacement techniques can be utilized to reduce total set'_°aawnts to 1 inch or less. Once more specific structural loading information ai, bearing (''c-,pt hs have been identified, GeoTechnologies will be glad to assist in determining stone c.D1_ecemc nt ,7en :s at sped-7c locations if required. Conventional asphalt pavements will be adequate for support F f a` is _(jad's on this site. Additionally, the site will fall under the seismic site class definition of "D" with rcg- c -c; seismic considerations. GeoTechnologies, Inc. appreciates the opportunity to },,, ve provided you with our services on this project. Please contact us if you should have questions rE` -ti s ° r g this c po' t or if we may be of any further assistance. Sincerer, Geo T ec ?':no fogies, Inc. d NC Re Ll a-Li 'l i?0. 1 t 3i9 ? V ti DLI/pr®ebh/lam A ttacia rr?e,?ts +-Yt - 070302-a.doc i 19 0 6 f d J? W ? ?I I o m e x I ti , 13 ^ - - oo _ '3- 3 co r. N I - ` ?- _? ?a.SLI 1 I SV (T1 C i,S ?V` AI `- k IN LL LIJ ?, d o U W ' Z u Q t ? r ui h i x I G) :I - ° z o z ? l? W o u- J 1p, i 7R _. w m 4?) i, L? 00 V I l L 00 ?- I cr) co L r E i_ i {? Q tV r w f -y dd a c co U- C} C m W O ffi C O m E C SS !b en a. 0 c R O L? r U 0 NN ? ?I II i= r j ?k ii C:L C? (14 CD ?i (4 co U 'j, ?i T Pm r^ ?I Lr) m >?'1 04 cl) t? fi} a , ? I O T tp d (D co ?'3 t- rm r Lf} ?I a) co {$ C, LO 0 LO bt'A O o m w -m - eow - C I O i i i I I t E ( f t Q J J I E G3 j i I j c; o c o (sayaul) luawal}has m 3 LL ctt if LO co cn H d J .? J sn ? u J LO f T 4? ? V (say?u{) ?u?uJa?}$aS i ! r f I ? ? j i I i r I i i i J I 4 i , ` f F a r I I , C t I ?r as uo C\j C7 c s? n 0 0 0 ua ?a o. U ttf C 4 t? O a? 0 {(f L a c a? cr> ?u F ' ?,' ? I =', J, " ;T BOR =AD DEPTH DESCRIPTION E ' LEV ATIO N PE NT 7: ) N 1 < << d? a, , I ,,> (F T°) (FT .) 0,0 0 10 20 -40 60 100 Very Loose $ro,,va f tv . to Medium SAND Slur 2.5 7 ; 1 Medium Dense Gray to Brown Silty Fine to SM s Medium SAND 12-10-9 4-8-11 13.0 Very Stiff G av r'i,c; Sandy Clayey SILT ML 1? 15.5 Boring terrninatv?d at 15.5' 5-8-10 ' I 0 cv e? M- 0 47 H t7 0 c 0 z Q II T ? I L L , 1 11 - - Water at/near surface Je s!^'U "t 1;i;.p, 1-074030?-EA LU`4d- ro ?1 N1? LIj, B® 1 TE 3-14-07 P ,,G 1; 1 OF 1 1 i'' TEST ' T _ 'TpI 00 0 1 I 7. 10. 15.i 24. t 20.' JOB NI7 % BO!N IRATE DESCRIPTION ELEVATION PE-l'L s - ON 1-07-0302-EA B- 2 3-13-07 L vib EIS 1'i'1..Ea7 UlUUlluwdter eacountereci at b' at time of boring. 3 6 10, 'i i` ur _ PAGE 1 OF I 1-07-0302-EA B-3 3-14-07 --lurvaaci c-,uLuucd4caeu iit ?.a ai Lulls of wring, T) T r:._ G 1 nr 7-1 DESCRIPTION FLEW, ' 10 -I I L -)WS PER i,CHES 10 vruwa ti ll, VUa1I.-1U a1 1V Q.C Lune oS oori lg.. !-?-u3 NUAlf-8 E, 111-1, 1-07-0302-EA ' 1" 3-14-0'7 PAGE 1 OF 1 • -s ? r -t) E TH on 1.0 3 7.i 10_: DESCRIPTION E EVA "".T ENF -?, ' -,'- t 1-07-0302-EA B ?'' Z iaLbt B 5 .A = 3-14-07 PAGE 1 OF 1 Jr 1 (.roundwater encountered at 4.3' at time of boring. TEST B ii I v 1 k i; PT A 'TION ELEVATION 1 L, FEIR (FT.) SIX fTT lES 0.0 2 6 12. 15. N lJ tYdAD.ER J" r _FAGF I OF I 1-07-0302-EA B-6 Jd14-07 a. v UllUYvalcA cai'-UUtttk:,t'CU aL I.3 aL time of boring. TEST BORING C ?; i ? DEPTH ? ` -JP TI N ELE NAT 1, ?lit R ',W 1.5 " i R (FT.) 0.0 0 T!!t in Kn and i. T 12.1 15:' i Very Loose Tan Silrl Fine to Medium SANL Soft Orange i uje ?,ady CLAY 7 Medium Dense Orange Clayey Fine to Mediu SAND Medium Dense Orangish Tan Slightly Clayey Fine to Medium SAND Loose Orangish Tan Silty Fine to Medium SAND SM Boring terminated at 15.5' 2-2-2 7-10-18 9-9-16 2-2-5 ICI o 4 U' F CL CL C7 N O M O n Q tsrounctwater encou It _ red at 8,6' at time of boring, UPS E7 1-0744302-EA b ? 1gLT_r; L jq B_ 7 A i . 3-14-07 s" L TP 0, -?.L- ??x3 DESCRI TION n _ I: 3. 7. SlLA g?~ CATS Topsoil Very Loose Tan Silty Fine to Medium SAND Very Loose Orange & Tan Clayey Fine to Medium SC SANl3 Loo> c T R[,r C ay to Orange Silty Fine SAND} SM b-4-3 13.1 15.: Firm Gray & Orange Fine Sandy Silty CLAY CL Boring terminated at 15.5' 2-2-4 1-71 r c? ca *..eavuaiuwa.tcr u"k-ur-rect a[..3.1- al. Time or boring. I . ,' 1-07-0302-EA LJ Ur,, NU LIt B- 8 3-14-07 PAGE 1 OF ] ,i i,s (E ;1e) n I.i,' IL "? rr?,IT?EZ P PAGE I OF I [:C'jFSFBORINGRf Y BORING RI k- •)' ice'' ?' ? ?fh?'? ?•? 1-07-0302-EA B- 9 3-14-0"7 0 0- 3j 7.i i i TO 5411 Loose Brown & Tan Silty Fine SA: p Stiff Orange Fine Sandy Silty CLA Medium Dense Orange Slightly Ch SAND 0 10 4a, 60 100 11-11-13 13.( 17.b 22.0 27.0 Loo:,: O ^e °- Tan Silty Fine to Medium SAND SM Very Loose Taal S1'ry !use to Nit(lium SAND SM Medium Dense Tan Slightly Clayey Silty Fine to SM Medium SAND Medium Dense Orange Clayey Fine SAND SC 3-5•-8 33.0 3&0 E40.0 CLAY Vei H- ird Gray Fine to Medium Sandy CLAY s:-i°ebb??'s Boring terminated at =40' 3-3-3 3-4-6 3-4-4 2-2-1 6-4-7 6-7-8 12-50/0„ (groundwater encountered at 67 at time of boring. JOB 1-07-0302-EA B-10 3-14-07 PAGE 1 OF I 3:' T( 12.t 15. Very Loose Brown Silty Fine SAND } Very Stiff Orange & Brown Fine San CLAY Loose Orangish Tan ilt}' r ui SANI Very Soft Gray & Red Pine Sandy Silty CLAY CL Boring terminated at 15.5' 3-2-1 ICI UrounOwater encountered at 6_9' at time of borinc. Z 1-07-0302-EA <y@Ts -7- 1? B- l 3-14-07 DEPTH DESCRIPTION ELEVATION EP--T six I:'J :. ? (FT) 0,0 12'. 15. .l To soil SM 1 00 Very Loose Tan to Orange Silty Fine to medium SAND i 1-1-1 Stitt O. c - : uie to Medium Sandy Silty CLAY CL 4-5-8 .5 Medium Dense Reddish Tan Clayey Fine to SC Medium SAND II ,I 8-9-12 0 Medium Dense Tan & Orange Silty Fine to SM Medium SAND 5 i _ Boring tem3imated at 15.5' 4-7-12 n 0 r d ca ca 4 a a L 0 n O Q I 1 ,1 1 1 1 1 11 H .., Groundwater encountered at 77 at time of boring. 1-07-0302-EA jh4-BLR B-12 W11 TE 3-13-07 c-- 1 OF 1 L: j _ DEPT= DESCRIPTION ELEVATION V. 1 .LC ' lj : k 0.0 0 40 0 100 0.1 Topsoil SM 12. 15. Very Loose Gray to Tan Silty Fine SAND 0 1.1m? Sz Stiff Orange Fine to Medium Sandy Silty CLAY CL 3-6-9 0 Medium Dense Orange Clayey Fine to Medium SC SAND i 6-10-13 0 Medium Dense Tan Silty Fine to Medium SAND SM ?t - Boring terminated at 15.5' 7 12 10 r n t? cJ O C1 Q O I i F- 4 . I U U T IsJ ? v, L er eriecauntereci at L.6' at time of boring. .710] NUMBER 1-07-0302-EA 1 a ING NUMBER B-13 I I E 3-14-07 PAGE 1 OF I, I ~s l ?1 TEST - J DEPTH s ELEVATION T F J?1_ T -ON ON E L °7 - 0.0 0 40 60 100 1.0 Loose Gray Silty Fine SAND SM __T Firm Orangish Tan Fine Sandy CLAY CL 3.0 2-2-3 Very Stiff Orange & Brown Fine to Medium Sandy CL Silty CLAY 6.4 4-10-15 Stiff Orange & Tan Fine to Alf,AiU ! S,!ndy CLAY CL 10.4 Loose Orangish Tan Clayey Fine to Medium SC 5-5.5 SANTO 17.0 IT WOH 3-$! Medium Dense'Orangish Tan Clayey Fine to 1SC Medium SAND 20.5 Boring terminated at 20.5' 5-6-5 O cv CT F C7 H G9 A U` m n D Z Q E Groundwater encountered at 10' at time of boring. 7,3 NTJI?TP,! 1-07-0302-EA ),UNC E'a B-14 LT E 3-14-07 PAGE I OF I 1 1 1:i 15, aib twv °7V Very Loose Tan & Gray Silty Fine SAND SM 60 100 Stiff 1-1- Orange & Brown Fine to Medium Sandy Silty CL CLAY 4-6-7 u'ii m L ,se 0 n .e {. Li.,,ht Brown Clayey Fine SC to Medium SAND 7-10-10 0 Loose Tan & bray Silty Fine SAND Sivi 5 Boring terminated at 15.5` 4_4_4 ti 0 0 ra ca a ra C 0 ri 0 z Groundwater encountered at 11.5' at time of boring, ti LLa 1-07®0302-EA '30' ,iiNl{ 1I UM BUR B-15 3-14-07 SAGE 1 OF 1 r TEST DEPTH (FT.) 0 .0 J 7 15 20. p PAGE I OF 1 DESCRIPTION ELE i 1-07`0302-EA B-16 3-14-0'7 z Fl % vuauwaLcl vituounterea at j.j' at time of borrinal eo Tec t_. _; ' Inc. CDR DATA S FET _ 1-0 -03r"?-EA JOB W o = Sunset La1,e, RC°uil 3/28/20107 SAMPLE I.D. S-5 DEPTH: 1-3` TEST PROCEDURE: ASTM D 698 Opt. Moisture = 11.0% Max. Dry Density = 121.6 PCF SOIL D"C H , "ON: Clark Gray Silty Sand CAF ?1 - C :-TA Swell Data MOISTUF.7 70NTEr.,T ca f . In;i'a? r P,;t?l(q 0.070 WET DE P Srr Ebs./cu.ft. 1= naf Rea O.Qio 17RY DEN it Y 12J.0 ? c)!d Heigi it 4'. 6r 0 O % COMPACT 100 99.5 ;? % Swell 0.0 , LOAD CELL 2000 LB. RATE OF DEFORMATION .05 in./min. SURCHARGE USED 10 lbs. 700.0 600.0 500.0 400.0 000.0 200.0 100.0 0. 0®000 0.100 0.200 0.000 `0 0.500 0.600 GBR @ 0,1° 30.0 CBR tr 0.2"• 41.9 % SWELL v_. 0.0 135 125 I u °t5 .U .? d 110 c 0 CL r s- n 1 3/23/07 No: r?,IJIp a o. Depth: T ST R SUL- ?'% 7C $± M ;? r3: :, f _;p Density., r-F Optimum Oi ture Content. ?®11 ^tur7l PIc°n, ?.-:,ra Content: S< e rip .i? ra ? r f v SUN Sand (°URVES OF 100% SATURATION i -?R SPECIFIC GRAVITY EQUAL TO: 2-6 t, 2-70 0 15 0 25 0 ?"'ATE4 C_F3h,7TEMT(Percep, ory tr!wnhl) 40 Permit Na (tv be pmvidrd by i WQ) V11. REQUIRED ITEMS CHECKLIST i Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package Wl result in a request for additional information. This Will delay final review and approval of the project. Initial in tho space provided to indicate the following design requirements have been met. If the appRoant has des[gnated an agent, the agent may initial belmy. If a requirement has not been met, attach justification. Pagel Plan Initials 'Sheet No. . I. IA-) P 1. flans (1" - 50' or larger) of the entire site sho-wingi Design at ul6mato build-out, 0?1-site drainage (lf applicable), Delineated drainage basins {include Ralional C coef ;dent per basin], Bssiil dim.ensiGi s; Pretreatment system, High flew bypass system, Maintenance amass, - Proposed drain Eage ea5c vent and public right of way ROW); - Overflow device, and - Boundaries of drainage easement, 2. Pariiai plan (1" T 30' ur larger) and detai[s for the wai detenfia:l basin showing: - Cutlet structure with trash racir or similar, V laintenance access, Permanent pool dimensions, - Forehay and main pond with hardened emergency spillway, Basin crass section, - Vegetation speciticafion r"or planting shelf, and -Filter Strip, 3. Section view of the wet detention basin 0" >K or larger) showing: Side ,lopes, 3:1 or lower, Pretreatment and treatment areas, and Inlet and cutlet structures, 4. If the basin is used for sediment and erosion control duting oonstrurtiontclean out of the basin is speei red on the plans nnliar to use as a Wet detINt[Orl baSir1. ° 5. A table of elevations, areas, i .ciem. ental volumes & gccgplatad volumes for overall pond and for forebay, to verify volume provided 0. A ccansiructinrl sequence that shows hour the-wet datenticn basin wiil be protected from sedlrr,ent until the entire drainage area is stabilized. :%' 7. The supporting calv.rlations: a. A copy of the signed and notarized operation and mair;tenance (C&M) agreement. 9, A ropy of Te deed restrictions (if required). 10. A soils report 'hot is based upon an actual field investig4on, soil b rings: and infiltration toss. bounty soil maps are not an acceptable source of soils information. Form S W401-Wet Getentio-i Basin-Re'i.3-9,117109 Part W. R3qulred Items Checklist, Pare i of 1 Permi! No It,, Le r,mvided by Di'r''7.1 ST( ?Rh?44'A"1 ER MANAGEMENT PERklIT AF 1J(,,ATi0N FORM 401 CERTIFICATION APPL'.CA i ION FORM WET DETENTION BASIN SUPPLEMENT G:is form e„ust be filed c±a, prirt?d and ?ubYr?t;ed. The Fe pc!!cd 1?eats Cf? krist {Pat 1iJ,l must oe prlc? ed, ?'ac cut and:3ob!Tjrtied along w,9h all of 1:0 r=rrureri nfo:m;aiien: i- -- - - L1, _ PROJECT INFORMATION - - project name GenemUons 11 Cemiins, Ll.t Space Pcrcells Contact pe,eon - Dan Wiggins Phorlenumber 91`'-173'-1217 Date 3'Z9!',Oi f Drainage area number - II. aaESIGP# INFGbW,4TI0N _ ----- Site Characteristics f ?- Drarage area 9P,7,49G ft Impervirus area, post development 233,04E it % Impervious 81.06 ,. Desion rainfall ceplh 1,0 in Storage Vofurne: Non-SA Waters N nimuril vGUm^ required 12,066 ft' Insufficient rtquired voiurrte. boiume provided --_'3,c01 fi' OK, vclurce provided is equal 1) or in excess of vblune raquired.. Storage Volume: SA Waters 1.5'runnn velurne ft' Piadevelopment f=yr, 24-1v run-4f it., Post'develaariont 1-yr, 2 ;-hr rr:npff fi3 tdinimtum vo'c:me required h Volufne prod °d fe Peak Row Calculations Is J',e prelpast ca .trot of dhe Syr 24hr clomp peas flow required? Y (Y or N) 1-yr, 24-hr rainfall depth 30 in R'alional C, prc-dcvelopmcni (unitle.?;) Ra' `. r???ol:al G, poe'-davelopmeni ,. (unwe,:) Rainfall intensity: ;-yr. 24-hr stornt iruhr Pr:- d?veloprmen: 9-yr, 2,1-hr pee-; flow 13.21 fP'fcec Post-devcirp anent 1-yr, 24 hr peak flow 2'5.29 fC'(sac Pre,FoVot 1-y'r, 24-hr pen fio& control 13.08 it'Isae -_._ Etevafions Temporary pool de.vc,ticrh 384.40 im3l P eri ;anent pool eievalion 38150 fmsl SHi1 T elevation (approx. al the pens. pool eiavalion) A'JG-63.88 fmsi fc11 of I0fr vx7 toted =hel(elelatian 364.03 imsi Bottom of loft vc-odat i snd e.evat rm 383.co imsi 5ed?imerit c c?nc.d, top elevation (bottom of pond) ;312.0 fmsl` Se6ment ci° ,cuf, button: alewa':ion W7.50 (mgt S s'ora;e provided - -------- ---- 1.00 11 is illera addikonai ve ! me =_'ored above the state-required ielhh:; pdol'7 Y (Y or N) Eievalion of 11';e tc?h of Jh-_ adr'i!:onai vsrtale' 384.4 frnsl OK `Fo,rr. SV'J•:J14J" DaLnli?n Bain-^neu&?}It71CYEF F'a1s L & H. UcsJn Surr.rnLry, page f aft Permit N H. DESIGN INMPMATIr?m: P be Nrnvid;zd L, awQ. r Slrrface Areas Area, tc:rporary pool Area R =QUIP<ED, permailentooof SAIDA. ratio Area PROVIDED, permanent pco!, A d Ares, botionr of 10f1 vajefa±ed shelf, Ave ?"' Area, sedirflent da,:Incul, [OP CIeVof"Dn (bdtOin Of paid), vole ps vol4ma, !aropoary pool Vcd„m0, pemlal+e ; pcn' V Volume, forabay (sum of `oreboys if nlsre than one fcrebay) RoraS y °, of permanent.o&cl voiurtre S )A1UA Tabla Data Du,5Jgn TSS rerrloval Coastal SAIDA Tab ;e tJsed'? hio,.;r? r P1ed nor.l SlVDA 7abie U::?d, SMDA ratio Average den., (used in SAIDA, G_r;la): Calculston agaticn 1 used? (See figure 10-2b) valult ,:, permanent noel, V (:TII Vii' Area prcurd?,J. permanent port. II. tiK? Av'er2ga depth cs!culated Average; d_Pth used in SA1DA, d;_„ (P-mid tonea:es' 0,5+11) Calc khan rip Hon 2 used? (See F gyre 10-2b) f%.rea pravid A, permanent pool, Arc?r, bcltom of 10ft vegeleled shelf, A A.re=, sedirlenl o!e rout, top elevation 'boltom of pordj, ?,_,.,; ., a ocplh' (disfanc,?- bAv bottcrn of loft shelf and lap of sedfinenfl Average depth rr:!cu!sted Average de0i used in SAIDA, d_ (Ro-.r,nd h; nearest 0 514t) Drawdown Calculations tlraw'dcw.. through crifce? Disme!er of o ific+e (if cicular) Area of ojf1ce (if-rrcrl circular) Coeflicierll of discharge (C,,) Drvir;g head (I f j Drawdawn thrcugh v ei? Weir type Gee Ic enl of disrhargr, (u„ ) Lcrlgi.+r of rve :r (L) Unlnnp herd f l i) Pre;J'velopnlerll I-yr, 24-hr F,t flaw Pcst-deve', pmatil 1-Yr. 2,1-hr pcak ;ICN S!nrage vnhlme discrlarg; Trite (thrnug`; discharge or 6ce ar,ve:r} 5fo a g; vciunle drawdotv?n i.ne Additional Infumia6an Jege'ted lido siopea Vcrfe:aied shelf slope Vegola!ad slte:f'vridtJ', Lengdh or 17J vpaNj (.D ;Vijth radio Leng(fl toyjid.j, -ado Tuns r,adc for o'rorilarv & Odfice<' Fro--- oard provided Verraatcd f;!ter prcv!jed? R.? rded dmnego asemenl provided? Capures ell rcrdwtI at uirim<nte ?u:i•d-aut? Drain rnxhanisrn for maini_cnaroe or UFcrgencie, is: Fenn5W401-Mit DrtentiorY Bain Hcv. 6_?l1711j'i 16,513 ft` 11,787 ft- -.?,.. ._,9.10 (uni!les,) 1c 096 ft' OK 0,77 f1` 3.205 W f ft fia -- - 9t1 °,G Il ®_ _ ("{ pr I'll} Y (Y OF N) d.10 (unites;) n (Y or 1J1) ft' 12,096 fi - 't ft Y (Y or N) fl' 12,096 8.774 tt` 3;rC'S {t: 1.50 fl 3.50_ it ft Y (Y or N) ? C;7 ar _ in 4.50 (unf!1ess): ft (Y or bf) (t%nidt^;s) _?? fun,rJ? s) ii ft 13.21 it YsE -, 26.29 it'Is?x 0.20 fl;'sar 2.00 days 3 :1 ?4 1 iG.0 it T , 50 Y (Y. or N) Y it Y (Y LI' f'f} y (Y ar 14) OK OK Ui(, dlav;s dovin in 2-5 days. 0K (-K UK OK OK OK OK OK OR Oil Palls I. ° II. D^_s'gi. St,mrnnry, ,39n 2 of 2 Phase 2--3-17-'111 Type 11 24-hr Rainfall= 1.00" Prepared by GEORGE FINCHIBONEY AND ASSOC. Page 1 H0roCA13 0 7.00 sin 002626 G 1986-2003 Applied Microcomputer Systems 3123120'11 Pond 3P: RETENTION POND Inflow Area = 6.600 ac, Inflow Depth= 0.50" lnfiow _ 6,08 c f s @ 11.96 hrs, Volume- 0.277 of Outflow = 0.'15 cfs @ 15.19 hr.s, Volume= 0.265 af, Atten= 97%, Lag= 193.8 min Prirrfary 0.00 cfs @ 0.00 hrs, Volume= 0.000 of Secondary = 0.15 cfs @ 15.19 hrs, Volume= 0.265 of Routing by Stor-Ind nnethod, Time Spar= 0.00-72.00 hrs, dt= 0.04 hrs 13 Peak Eiev= 384.04' @ 15.19 hrs Surf.Area= '15,716 sf Storage= 7,561 cf Plug-Flow detention time= 718.8 min calculated for 0.265 of (96% of inflow) Center of-Mass det, time-- 695.7 min ( 1,524.4 - 828.7 ) # Invert Avaii.Storage Storage Description 1 383.50' 63, 421 cf Custom Stage Data (Pyramidal) Listed below Elevation Surf.Area 1nc.Store CUM,Sfore \Net.Areai (feet) (sa-ft) (cubic-feet) (cubic-feet) (sq-ft) 383.50 12,095 0 0 12,096 384.00 15,631 6,913 6,913 15,630 385.00 17,836 16,721 23,634 17,904 386.00 20,175 18,993 42,628 20.307 386.50 21,000 10,293 52,921 21,180 387.00 21,000 10,500 63,421 21,470 # Routine Invert Outlet. Devices 1 Primary 382.00' 30,0" x 60.0' fong Culvert RCP, sq.cut end projecting, Ke= 0.5001 Outlet Invert= 382.10' S= 0.0083 '; n=0.013 Cc= 0.300 2- Secondary 383.50' 3.0" Vert. Orifice/Grate C= 0.600 3 Device 1 384.40' 4.00' x 0.33° Vert. OrificeiGrate X 3.00 C=0.600 4 Device 1 385.15' 100' x 2.00' Horiz. Orifice/Grate Limited to weir flow C=0.600 5' Secondary 385.70' 10.0' long x 6.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3,00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.37 2.51 2.70 2.68 2.68 2.67 2.6:? 2.65 2.65 2.65 2.66 2.66 2.67 2.69 2.72 2.76 2.83 Primary OutFlow Max=0.00 cfs @ 0.00 tits HVV=383.50' (Free Discharge) 1=Culvert {Passes 0.00 cfs of 4.59 cfs potential flow) 33 Orifice;Grate ( Controls 0.00 cfs) u-4=Orifice/Grate ( Controls 0.00 cfs) Secondary OutFlow M@x=0.15 cfs @ 15.19 hrs HVV-384.04' (Free Discharge) 2=OrificelGrate (Orifice Controls 0.15 cfs @ 3,1 fps) =Broad-Crested Rectangular Weir (Controls 0.00 cfs) Phase 2--3-17-11 Type !l 24-hr Rainfall=?. for Prepared by GEORGE FINCHIBOHFY AND ASSOC. Page 2 Hydrar3ADO 7.00 sin 002626 (c) 1986-2003 Applied Microcomputer Systems 3/23/2011 _ Pond 3P: RETENTION POND Hydrograph I`6_0 5 c(s - Inflow - CL !?- - Primarv ? ? ? 47E7 I! ®A o ? ac ? Ser„rti7?i'r i Peak Storage-z!7,681 cf 4' v 3 0 7. 3. 2 c(s D.i5cf LA 0, 0 0 D 2 4 6 ...8 10 12 14 16 18 20 22 24 C 25 30 32 7,4 39 33 40 42 44 46 48 50 S2 54 ?6 58 60 02 64 66 68 70 72 Time (hours) Phase 2--3-17-11 Type 1124-hr Rainfall=1,00" Prepared by GEORGE FINICH/BONEY AN[) ASSOC. Page 3 Hydr(,)CAD,V 7.00 stn 002625 r } 1986-2003 Applied Microcomputer systems 3/2312011 FHydrograph for Pond 3Po RETENTION POND Time 111flaw Storage Elevation OUtriOW Primary aecorndary (hours) (cssL (eubfc-feet) fee (cfs) (cfs) (ees) 0.00 0.00 0 383.50 0011 0.410 7.00 2.00 0.00 0 383.50 0.00 0.00 0.00 4.00 0.00 0 383.50 0.00 0.00 0.00 5.00 0.00 0 383.50 0.00 0-00 0.00 8.00 0.00 G 383.50 0.00 0.00 0.00 10.00 0.04 87 383.51 0.00 0.00 0.00 '1:2.00 5.27 4,689 383.84 0.11 0.00 0.11 14.00 0.20 7,472 384,03 0.15 0.07 0.15 16.00 0.12 7,520 304.04 0.15 0.00 0.15 18 00 0.10 7,228 384.02 0.15 0.00 0.115 20.00 0.07 6,783 383.99 0.14 0.00 0.14 22.00 0.07 6,269 383.95 0.14 01.00 0.14 24.00 0.06 5,774 313.92 0.13- 0.00 0 13 26.00 0.00 4.921 383.86 0.11 0.00 . 0. ;1 28.00 0.00 4,156 383.80 0.10 0.00 0.10 30.00 0.00 3,495 383.75 0.08 0.00 0.08 32.00 0.00 2,939 383.71 0.07 0.00 0.07 34.00 0.00 2,493 383.63 G.05 0.00 0.05 36.00 0.00 21143 383.65 0.04 0.00 0.04 38.00 01 00 1,868 383.64 0.03 0.001 0.03 40.00 0.00 1,647 383.6.' 0.03 0.00 0.03 42.00 0.00 1,470 383.61 0.02 0.00 0.02 44.00 0.00 1,324 383.60 0.02 0.00 0.02 46.00 0.00 1,201 383.59 0.02 0 00 0.02 48.00 0.00 1,097 383.58 0.01 0.00 0.01 50.00 0.00 1,010 383,57 0.01 0.00 0.01 52.00 0.00 936 383.57 0.01 0.00 0.01 54.00 0 00 8701 383.56 0.01 0 00 0.01 56.00 0.00` 811 383.56 0.01 0.00 0.01 58.00 0.00 759 383.55 0.01 0.00 60.00 0.00 712 383.55 0.01 0.00 0,01 62.00 0.00 670 383.55 0.01 0.00 0.01 64.00` 0.00 632 363.55 0.00 0,00 0.00 66.00 0.00 598 383.54 0.00 0.00 0.00 68.00 0.00 568 383.54 0.00 0.00 0.00 70.00 0.00 541 383.54 0.00 0.00 0.70 72.00 &00 517 383.54 0.001 0.00 0.00 Bobcat Ruch tin Link �3S� Phew 2-w3-17-11 Tyne!/ 24-hr Rainfall=3, 00" Prepared by GEORGE FINCH/BONEY AND ASSOC. Page 5 HydroCAD5 7.07 sln 002626 (D 198c-2003 Applied Microcomputar_SystFn?s 3/23/2011 Time span=0.00-48.00 hers, pit=0.04 ffrs, 1201 points Runoff by SCS TR-21) method, UH=SCS Reach routing by Stor-ind+Trans method - Bond routing by Stor trtd method Subcatchment 1S: pre Subcatchment 2S: Post ubcatchrnent 3S: Pond Runoff Area=6.750 ac Runoff depth=1.07" Tc=5.0 min CN=77 Runcfr=1',;x.21 cfs 0.602 of Runoff Area=6.750 ac Runoff Depth=2.25" Tc=5.0 min CN=93 Runoff=26.15 cfs 1.268 of Runoff Area=6.600 ac Runoff Depth=2.35° Tc=5.0 min CN=94 Runoff--26.29 cis 1.293 of Pend P: RETENTION POND Peak Rlev=385.02' Storage=2 X1,01? ct Inflow-26.29 cf:s 1.293 of Primary-12.79 cfs 0.734 of Secondary=0.2,8 cfs 0.506 of QUtflow-13.06 cfs 1?40 of Phase 2--3-17-11 Type 11 24-hr Rainfall=3.001, Prepared by GE-:0 GE FINCH/BONEY AND ASSOC. Page 6 HydreCADS, 7.00 sIn 002626 r? 1986-200:; Rpl? lied Microcomputer Systerns 3 1?_312011 Subcatc(' went 1S: pro Runoff - 13.21 c1s @ 111 .96 hFS, V'OILUYie= 0.602 at, Depth= 1.07 Runoff by SCS TR-20 method', UH=SCS,Time Spar= 0.00-48.00 hrs, dt= 0.04 hrs Type it 24-hr Rainfall=3.00" Area (ac) CN Description 2.500 79 Pasture/grassland/range, f=air, HSG C 4250 76 Woods/grass comb., fair, HSG C 6.750 77 Weighted Average Tc Length Slope 10elOcity Capacity Description (miry) (feet) (ffldit) (ft/sec) cfs 5.0 Direct Entry, Subcatchment IS: pre Hydrograph w n 13 21 c;s Type C1 24-hr Runoff Area=6o 750 ac Runoff Volume=0.602 of Runoff Depth=1,01°° CN=77 4 .' u 1U 1Z 4 1a ltl 2 U 22 )4 26 23 30 32 34 36 38 ?0 42 44 40 43 Time (how's) Phase 2--3-17-11 Type 1124-hr Rairv'all= x.00" Prepared by GEORGE FINCHIBONEY AND ASSOC. Page 7 HydreCAD@: 7.00 sln 002626 1986-2003 Applied Microcomputer Systems 3112312011 Hydrograph for Subcatchrnenf IS: pre Time Precip. Excess Runoff (hours) (inches) (inches) (cfs) 0.00 0.00 0.00 0.00 0.80 0.02 0.00 0.00 1.60 0.05 0.00 0.00 2.40 0.19B 0.00 0.00 3.20 0.11 O.UO 0.00 4.00 014 0.00 0.00- 4.80 0.118 0.00 0,00 5.60 0.22 0,00 0`.00 6.40 0.26 0.00 0.00 7.20 0.31 0.00 0-00 8.00 0,36 0.00 0.00 8.80 0.42 0.00 0.00 9 60 0.50 0.00 0.00 10.40 0.60 0.00 0.00 11.20 0.75 0.01 0.15 12.00 1.99 0.44 11.77 12.80 2.28 0.60 0.90 13.60 2.41 0.69 0.5E 14.40 2.50 0.74 0.44 15.20 2.58 0.79 0.38 16.00 2.64 0.83 0.31 16.80 2.69 0.86 0.23 17.60 2.74 0.90 0.26 18.10 2.76 0.92 0.23 19.20 2.82 0.95 0.21 20.00 2.86 0.97 0.18 20.80 2.89 0.99 018 21.60 2.92 1.011 0;17 22.40 2.95 1.03 0.17 23.20 2.07 1.051 0.16 24.00 3.00 1 .07 0.16 24.80 3.00 1.07 0.00 25.60 3.00 1.07 0.00 26.40 3.00 1.07 0.00 27.20 3,00 1.07 0100 28.00 3.00 1.07 r7 o0 28.80 3.00 1.07 0.00 29.60 3.00 1.07 0.00 30.40 3.00 1.07 0.00 31.20 3.00 '1.07 0.00 3200 3.00 1.07 0.00 ;32.80 3,00 1.07 0.00 33.60 3.00 1.07 0.00 34.40 3.00 1.07 0.00 35.20 3.00 1.07 0.00 36,00 3.00 1.07 0.00 36.010 3.00 1.07 0.00 37.60 3.01 1.07 0.00 34.40 3.00 1.07 0.00 30.20 3.00 1.07 0.00 40.00 3.00 1.07 0.00 40.80 3,00 1.07 0.00 41.60 3.00 1.07 C-00 Time Precin. Excess RLWO`rf hc2L ,s) !inches) (inches) (cfs) 42,40 3.00 1.07 0.00 43.20 3.00 1.07 0.00 44.00 3.00 1.07 0.00 144,90 3.00 1.07 0.00 45,60 3.00 107 0.00 46.40 3.00 9.07 0.00 47.20 3.00 1.07 0.00 43.00 3.00 1.07 0.00 Phase 2-3-17-11 Type It 24--hr Rainfaff=3.00" Prepared by GEORGE PINCH/BGPIE'Y AND ASSOC. Page 6 HydroCAD'.l 7.00 sin 002626 D 1986-2003 Applied f nicracolr?puter Systems 3/23/2011 Subcafchment 2S: Fast Runoff 26.15 cfs @ 11.96 hrs, VofUme '1.2.68 af, Depth= 2.25" Runoff by SCS TR-20 method, t_ ldz-SCS, Time Span= 0.00-48.00 hrs, dt= 0.04 hrs Type 11 24-hr Rainfall=100" Area (ac)CN I]esuia!!Lon 5.350 98 Paved parking & roofs 1 A00 74 >75% Grass cover, Goad, HSG C 6.750 93 Weighted Average Tc Length Slope Velocity Capacity Description ;rein) (feet} ?i?/;t) ff#ysec) (cts'? 5.0 Direct Entry, Subcatchment 2S: Post Hydrograph 0 LL <5.15 cfs ?6 4. Type A 24-hr RaiugfaI1?3.00 f Runoff Area®6°750 ac is 16 Runoff V0WM9=1.268 of 0 Runoff Depth=2.25 ' =3 0 L - J, EEEaD L) z 4 U u l U 12 14 1U 18 20 22 24 26 28 30 32 34 36 36 47 42 44 -6 4t: Time (hours) Phase 2--3-17-11 TyPe lI 24-hr Rainfall=3.00" Prepared by GEORGE FINCH/lBO(`JEY AND ASSOC. Page 9 HydroCADO 7.00 slit 002626 s-rD 1986-2003 Applied Microcomputer Systems 3123/2011 Hyorograph for Subcetchrrrenf 23: Pose T;me Precfp. Excess Runaff {F ours) (inches) (inches? (cfs) 0.00 0.00 0.00 0.00 0.80 0 02 0,00 0.00 :.60 0.05 0.00 0.00 2.40 0.03 0.00 0.00 3.20 0.11 0.00 0.00 4.00 0.14 0.00 0,00 4;80 0.18 0.00 0.02 5.50 0.22 0.01 0.05 6.40 0.26 0,01 0.09 7.20 0.31 0.03 0.13 8.00 01.3E 0.05 0.17 8.80 0.42 0.07 0.27 9.60 0.50 0.11 0.35 10.40 0.60 0.17 0.58 11.20 0.75 0.27 1.17 12.00 1.99 1.30 21.98 12.80 2.28 1.57 1.43 3.F',0 2,41 1.70 0.89 14.40 2.50 1.78 0.67 15.20 2.58 1.85 0.56 16.00 2.64 1.91 0.45 16.80 2.69 1.96 0.41 17.60 2.74 2.01 0.37 '18.40 2.73 2.05 0.33 19.20 2.82 2 08 0.30 20, 00 2.66 2.12 0.26 20.80 2.89 215 0.25 21.60 2.92 2.17 0.21 22.40 1.05 2.20 0.23 23.20 2.97 2.23 0.22 24.00 3.00 2.25 0.22 24.80 3.00 2,25 0.00 25.60 3.00 2.25 0.00 26.40 3.00 2.25 0.00 27.20 3.00 2.25 0.00 28.00 100 2.25 0.00 28.80 3.00 2.25 0.00 29.69 3.00 2.25 0.00 30.40 3,00 2.25 0.00 311.20 3.00 2.25 0.00 32.00 3.00 2.25 0.00 32,130 3.00 2.25 0.00 33.60 3.00 2,25 0.00 3440 3.00 2.25 0.00 35.20 3.00 2.25 0.00 36.00 3.00 225 0.00 36.80 3.00 2.25 0.00 37.60 3.00 2.25 0.00 38.40 3.00 2.25 0.00 39.20 3.00 2.25 0.00 40.00 3.00 2,25 0.00 40.60 3.00 225 0.00 41.60 3.00 2 2 5 0.00 Time Precip. Excess Runoff (hours) (in(,hes) (inches) (cfs) 42.40 3.00 2.25 0.00 43.20 3.00 2.25 0.00 44.00 3.00 2.25 0.00 44.80 3.00 2.25 0.00 45.60 3.00 2.25 0.00 46.4D 3.00 2.25 0.00 4720 3.00 2.25 0.00; 48-00 3.00 2.25 0.00!, Phase 2--3-17-11 Type /124-hr Rainfafl=3.00" Prepared by GEORGE Fl1r1CH(BONEY AND ASSOC. Page 10 Hydro' ADS 7.00 s/n 002626 (f) 1900-2003 App`ied Microuornputer Syskerns 3/2312011_ Subcatchment 3S: Pond Runoff - 23.29 (-fs @ 11.96 hrs, Valrime= 1.293 af. Dent.h= 2.35" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.010-48,0,0 hrs, dt= 0.04 firs Type 11 24-hr Rainfa11=3.00" Area (ac) CN Description 5.035 98 Paved roads w/curbs sewers 1,083 74 X75% Grass cover, Good, HSG C 0.410 98 Road Imp 0,072 74 Road Perv 6.600 94 Weighted Average Tc Length Slope Velocity Capacity Description - (niin) (feet) (fUft) (fUsec) (cfs 5.0 Direct Entry, PARKING Subcatchment. 3S: Pond Hydrograph U O 6_ 24 'hype G1 2 uhrd° 22 ainfa =°3.00°' 20 Ramoff Area=6.600 ac Runoff Vc?ume=1.293 of 14 Runoff Tc?6o0 min 4 _ 0 2 4 6 j 10 12 14 1G 10 0 ? 24 25 25 30 32 34 36 38 40 42 44 46 4a - R.1orf Time (hours) Phase 2--3-17-11 Type / 24-hr Rainfall=3.00: Prepared by GEORGE FlNCHIBONEY AND ASSOC. Rage 'I1 klydre,CADCFj 7.00 s/n 002626 Cc) ', 986-2003 A plied Microcomputer Systems 3/23/2011 Hydrograph for Subcatchment 3S: and Time Pmcip. Excess Runoff (hours) (inches) (Indies) (CFS) 0.00 0.00 0.00 0,00 0.80 0.02 0.00 0.00 1.60 0 05 0.00 0.00 2.40 0.08 0.00 0.00 20 0.11 0.00 0.00 4.00 0,14 0.00 0.01 4.80 0.116 0.00 0.04 5.60 0.22 0.01 0.08 6.40 025 0.02 0.12 7.20 0.31 0.04 0. i B 8.00 0.35 0.00 0.20 8.80 0.42 0.05 0.31 9.60 0.50 0.14 0.39 10.40 0.60 0.20 0.63 1120 0.75 0.31 1.23 12.00 1.99 1.39 22.03 12.80 2.28 1.66 1.43 13.60 2.41 1.78 0.89 14 40 2.50 1.87 0.66 15.20 2.58 1.94 0.58 16.00 2.64 2.00 0.45 16.80 2.69 2.05 0.41 17.60 2.74 2.10 0.37 18.40 2.78 214 0.33 1920 . 2.82 218 0.29 20.00 2.86 2.2'1 0.25 20.80 2.89 2.24 0.24 21.60 2.92 2.27 0.24 22.40 2.95 2.30 0.23 23.20 2.97 2,32 0.22 24.00 3.00 2.35 0.21 24.80 3.00 2.35 0.00 25.60 3.00 2.35 0.00 26.40 3.00 2.35 0.00 27.20 3.00 2,35 0.00 28.00 3.00 2.35 0.00 28.80 3.00 2.35 0.00 29.60 3.00 2.35 0.00 30.40 3.00 2.35 0.00 31.20 3.00 2.35 0.00 321.00 3.00 2.35 0.00 32.80 3.00 2.35 0.00 33,60 3.00 2.35 0.00 34.40 3,00 2.35 0.00 35.20 3.00 2 35 0.00 36.00 3.00 2.35 0.00 36.80 3.00 2.35 0.00 37,60 3.00 2.35 0.00 38.40 3.00 2.35 0.00 39.20 3.00 2.35 0.00 40.00 3.00 2.35 0.00 40.80 3.00 2.35 0.00 41.60 3.00 2,35 0.00 Time Precip. Excess Runoff (hours) (inches) (inches) (, fs) 42.40 3.00 2.35 0.00 43.20 3.00 2.35 0.00 44.00 3.00 2.35 0.00 44.80 3 00 9.35 0.00 45.50 3.00; 2.35 0.010 46.40 3.00 2.35 0.00 4720 3.00 2.35 0.00 48.00 3.00 2.35 0.00 Phase 2--3-17-11 Type 1124-hr R,ainfal'a=3.00" Prepared by GEORGE FINCHIBONEY AND ASSOC. Page 12 HydroCAIM) 7.OD sin 002626 (_) 1985-2003 Appiied Microcomputer Systems 3/2312011 Pond 3P: RETENTION POND Inflo?flr Area'- 6.600 ac, Inflow Depth = 2.35" Inflow - 26.29 cfs @ 11.96 hrs, Volume= 1.293 of Outflow 13,06 cfs @ 12.05 hrs, Volume= 1.240 af, Atten= 50%, Lag= 5.5 mitt Primary 12.79 cfs @ 12.05 hrs, Volume= 0.734 of Secondary = 0.28 cfs @ 12.05 hrs, Volumne = 0.506 of Routing by Stor-Il ia method, Time Span= 0,00-48.00 hrs, dt= 0.04 lirs / 3 Peak Elev= 385,02'@) 12.05 hrs Surf.Area= 17,882 sf Storage= 24,011 c Plug-Flow detent ion time= 331,2 rain calculated for 1.239 of (96% of inflow) Center-of-Mass det. time= 308.0 min ( 1,093,0 - 785.1 ) #f Invert Avaii.Storage Storage Description 1 383.50' 63,421 cf Custom Stage Data (Pyramidal) Listed below Elevation Sur€.Area fnc.Store Cum.Store VVet.Area (feet) (scI-ft) aibic-feet) (cubic.-feet) (sq-ft) 383.50 '12,096 0 0 12,096 384.00 15,631 6,913 6,913 15.639 385.00 17,836 16,721 23,634 17,904 386.00 20,175 18,993 42,628 20,307 386.50 21,000 10.293 52,921 2'1,180 387.00 21,006r 10.500 63,421 21,470 Routing Invert Outlet Devices 1 Primary 382.60' 30.0" x 60.0' lone Culvert RCP, sq.c:ut and projecting, Ke= 0,50 Outlet Invert= 382.10' S= 0.00837 n= 0.013 Cc= 0.900 2 Socondaryy 383.50' 3.0" Vert. Orifice/Grate C= 0.500 3 Device 1 384.40' 4.00' x 0,33' Vert. OrificelGrate X 3.00 C= 0.600 4 Device 1 385.15' 2.00' x 2.00' Horiz. Orifice/Grate l._imited to weir flow :,= 0.600 5 Secondary 385.70' 10.0' long x 6.0' breadth Broad-Crested Rectangular Weir Head (feet) +0.20 0.40 0.60 0.80 1.00 1.20 '1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.37 2.51 2.70 2,68 2.68 2.67 2.65 2.65 2,65 2,65 2,00 2.6E 2.67 2.69 2.72 2.76 2.83 Primary OutFlow Max=12.7 2 cfs 12.05 hrs HNJ=385.02' (Free Discharge) '?-1=Culvert (Passes 12.72 cfs of 23.08 cfs potential flow) *?-3=0rifice/Grate (Orifice Controls 12.72 cfs C 3.2 fps) =Orifice/Grate ( Controls 0.00 cfs) Secondary OutFlow Max=0.28 cfs r 12.05 hrs HIAI=385.02' (Free Discharge) li==B Orifice/Grate (Orifice Controls 0.28 cfs @ 5.7 fps) ro ad-Crested Rectangular Weir~ ( Controls 0.00 ofs) Phase 2--3-17-11 Type 1124-hr Rainfall-3.00" Prepared by GEORGE FINCH/BONEY AND ASSOC. Page 13 H?droCA()(J 7.00 sln 00262E J -(980-2003 Apaiied Microcor-?u er Systems 3/2312011 Pond 313: RETENTION POND Hydrograph ?a .? 6 24 22 29 15 16 L 14 U- 1^ R 4 2 x;020 cis. Peak Mev=3 .02L Storage=-94,011 cf C? 12_113 c?fs III 10.2D C -, ;nRus'r - Outt?o'rr ?nrrrari u z a d: d 1U 1'1 14 16 10 20 122 24 26 ?6 iQ 32 34 36 38 40 42 41 16 10 Time (Hours) Phase 2--3-17-11 7rpe 11-24-hr Rainfall=3.00" Prepared by GEORGE FINCHIBONEY AND ASSOC, Page 14 HydroCAD@ 7.00 s/n 002625 '_) 1886-2003 Applied Micmcor puter Systems 3/23/2011 Hydrograph for Pond 3P: RETENTION POND Time Inflow ;'Orage Elevation Outflow Primary Secondary (hours) (cfs) (cubic-fee) ifeeb (cfs) (cfs), (cfs} 0.00 0.00 0 383.50 0.00 0.00 0.00 2.00 0.00 0 383.50 0.00 0.00 0.00 4.00 0.011 6 383.50 0.00 0.00 0.00 6.00 0.10 370 383.53 0.00 0,00 O'CO 8.00 0.20 1,364 383.50 0.02 0.00 0.02 10.00 0.48 3,381 383.74 0.08 0.00 0,08 12.00 22.03 23,272 384.98 '12.45 12.17 0.27 '14.00 0.73 14,684 384.46 0.87 0.65 0.22 16.00 0.45 14,228 384.44 0.51 0.30 0.21 18.00 0.35 13,988 384,42 0.37 0.16 0.21 20.00 0.25 13,820 384.41 0.28 0.07 0.21 22.00 0.23 13,741 384.41 0.24 0.03 0.21 24.00 0,21 13,668 384.40 0.22 0.02 0.21 26.00 0.00 12,259 384,32 0.20 0.00 0.20 28.100 0,00 10,884 384.24 0.18 0.00 0.18 30.70 0.00 9,596 38416 0.17 0.00 0.17 32.00 0.00 8,394 384.08 0.16 0.00 016 34.00 0.00 71279 384.02 0.15 0.00 0.15 36.00 0.00 6.254 383.95 0.14 0.00 014 38.00 0.00 5,333 333,69 0,12 0.00 0.12 40.00 0.00 4,517 383.83 0,11 0.00 0,11 4200 . 0.00 3,805 383.78 0.09 0.00 0.08 44,00 0.00 3,197 383.73 0.0B 0.00 0.08 45.00 0.00 2,698 383.70 0.06 0.00 0.0 48.00 0.00 2.303 383.67 0.05; 0.0(} 0.05 Phase 2--3-17-11 Type l( 24-hr Rainfall=5.36" Prepared by GEORGE FINCH/BONEY AND ASSOC. Page 15 HydroCADO 7.00 sin 002626 fd) 1986-20 3 hp led MiCro?ornputer Systems 3/23/2011 Pored 3P: RETENTION POND inflow Area - 6.6001 ac, Inflow Depth = 4,68' inflow = 60.04 cfs @ 11.95 hrs, Volume=' 2.576 of Outfl0W 30.82 cfs @ 12.03 Iirs, Volume= 2.521 af, Atten= 38%, Lag= 4.5 min Pdrrrary 30.48 cfs @ 12.03 hrs, Volume= 1.961 of Secondary = 0.34 cfs @ 12.03 his, Volume= 0.560 of Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.04 hrs /13 Peak Elev= 385.69' (q:) 12.03 lirs Surf.Area- '19,446 si Storage= 36,710 cf Plug-Flow detention time= 188.1 rain calculated for 2.519 of (98% of inflaM Center-of-Mass det. time= 175.7 rein ( 942.7 - 767.0 ) 4 Invert Avail.Storage Storage Descni )titan 1 383.50' 63, 421 cf Custom Stage Data (Pyramidal) Listed below Elevation Srirf.Area lnc. ;tore CuITI.Store Wet.Area (feet) (sq-ft) (cubic-feet) (cubic-feet) (sq_ft) 383.50 12,096 0 0 12,096 384.00 15,631 6,913 6,913 15,634 385.00 17,836 16,721 23,634 17,904 386.00 20,175 187993 42,626 20,307 386.50 21;000 10,293 52,921 21,180 387.00 21,000 10,500 63,421 21,470 i# Routing Invert Outlet Devices 1 Primary 382.60' 30.0° x 6090` long Calvert RCP, sq.cut end projecting, Fee= 0.500 Outlet Invert= 382.10' S= 0.0083 'f n=0.013 Cc= 0.90'0 2 Secondary 383.50' 3.0" Vert. Orifice/Grate C= 0.600 3 Device 1 384.40' 4.00' x 0.33' Vert. Orifice/Grate X 3.00 C= 0.600 4 Device. 1 385.15' 2.00' x 2.00' Horiz. Orifice/Grate Limited to weir flow C=0.600 5 Secondary 385.70' 10.0' long x 6.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.69 1.80 2.00 2.50 3.00 3.50 4.90 4.50 5.00 5.50 Coef. (English) 2.37 2.51 2.70 2.68 2.68 2,67 2.65 2.65 2.65 2.65 2.66 2.66 2.67 2.69 2.72 2.76 2.83 Primary OutFlow Max=301.16 cfs @ 12.03 hrs HVV=385.68' (Free Discharge) t-1=Culvert (Passes 30.16 cfs of 30.69 cfs potential flow) ?--3=OrificefGrate (Orifice Controls 20.10 cfs' 5.1 fps) k-4=0rificclt.?rate (Weir Controls 10.06 cfs @ 2.4 fps) Secondary OutFlow Max=0.34 cfs o 12.03 hrs H\Af=385.68' (Free Discharge) t?==Broad Orifice/Grate (Orifice Controls 0.34 cfs o 6.9 fps) -C rested Rectangular Weir (Controls 0.00 cfs) Phase 2--3-17-11 Type f/ 24-hr Rainfall=5.3-8" Prepared by GEORGE FINCH/BC,R{r-_Y AND ASSOC. Page 16 hyd,oC ADS) 7.00 s/n 002626 (c-) 1986-2003 Applied Mj ocornputer Systerrfs 312?'2?1 I Pond 3P: RETENTION POND Hydrograph 55 ?[llCd ct?5' 50 45 ?nfio y , r eww 6.600 ac 40 Peak Eew738 e69Q 35 _3048 to a e=36, 710 c'IF 10 15- 10- 5- I D_.34 cfs c - - inflow - C:urnaav Primary - S_ ?cida!y v u Q fu « 14 10 in -u 1:' !q 2b _'ti, :j Ls 32 3e; 35 26 40 42 44 46 40 Time (hours) Phase 2`--3-17-11 Type ff 24-hr Rainfall=5.38" Prepared by GEORGE FINCHlBONEY AND ASSOC. Page 17 H ddroC:ADJ 7.00 s/n 002626 D 1986-2003 Aa lid ed Micrecomputer Systems 3/23/2011 Hydrograph for Pond 3P: RETENTION POND Time lntlo i Storage Elevatio!i outflow Primary Secondary (hours) fds) (cubic-feet) (fect7 (G`S) C1 ofG G.00 0.00 0 38:3.50 0.00 0.00 _ 01.00 .00 0.00 0 383.50 0.00 0.00 0.00 4.00 0,15 483 383.53 0.00 0.00 0.00 6.00 0.34 2,108 383.65 0.04 0.00 0.04 8.00 0.54 4,7-.17 383.84 0.11 0.00 0.11 10.00 1.13 9.530 384.16 0.17 0.001 0.17 12.00, 41,62 36,206 335.66 29,87 26.53 0.34 14.00 1.36 15,356 384.50 1.54 1.32 0,22 16 00 0,83 14,729 384-47 0.91 0.69 0.22 18.00 0.64 '14,456 384.45 0.67 0.46 0.21 20.00 0.47 14;223 384.44 0.51 0.29 0.'' 1 22.00 0.43 14,097 384.43 0.43 022 0.21 24.00 0.39 114,034 384.43 0.40 0.19 0.21 26.00 0.00 12,512 334.33 0.20 0.00 0.20 28.00 0.00 11;122 334.25 0.19 0.00 0.19 30.00 0.00 9,818 384.17 0,18 0.00 0.18 32.00 0.00 8,601 384. 10 0.16 0.00 016 34.00 0.00 7,470 384.03 0.15 0.00 0.15 30.00 0.00 6,428 383.96 0.14 0.00 0.14 38.00 0.00 5.489 383.90 0.12 0.00 0.12 40.00 0.00 4.654 383.84 0.11 000 0.11 42.00 0.00 3,924 383.78 0.09 0.00 0.09 44.00 0.00 3,297 383.74 0.08 0.00 0.08 46.00 0.00 2,778 383.70 0.06 0.00 0.0E 48.00 0.00 2;366 383.57 0.05 0.00 0.05 C^ *f l 'LfC[-t[4/t p,]r? g ?1 T`7. ?.W"d acrr w -44n a ors _'s r -" n Mso.l vo?ma - y Srt __anrrsv ?>.^n rra::ne ?;c 2 rli: ? -TVIOL2b`JVJCY? r?R7!_'cC J r'rr J_ V?IN1113 AL JO-?CICNI ?3N1)3/ROHL, WaSCa? 13 ts>lrµn-c. 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' F I.•- J5 G X112 I'll I)i '.-- - ?? - I I i r G I I ? 19 - - ? I li lLi Y i 4 d ? ??t 9 I-. -._ ? ? ? r0. F?I?I? ? .. _ ?dk i° ? - ?i• Ztd E?yy ? ??eei ?{ ??,I t ? p 8 sYI f !?r i I)} ? i [ ? ?l. y r,l [? ? Y I ?.?; r r. a lJt l ? ° _ ep t 0. I - ? I III' 7 `? ? _.- ! v -- ?; ? i' r''? '/ I ' I I• ` C ?F.? 1 ? - PJ :? Y ?? 1-i ?I?N I Fy '...' - ??, Oft ?En fj-I, C !?"Fi R-- 7' ?v` n, ° 3. Iii F? I y ?,?s fl 1 i F rr e _ ,l?,i,l ?J .I.!,..1 •1 tf'..'.v?l:','<?-'.? •.[ti}•N? Tr.::6i LJ... Z.:.:•-.:.,'..._..??-.i.IK".'.:1 :,: "?:*5-?-'.i:':l'r:,:x'.?C. Vi.??•?'.r?7-C ??a. ?_y1 •._.A-?r_?:rC::'.v? tcf•.; Fern it Nuttthcr: (lc: he r^rol,Ocd hr, DN 0) DraitiaL e arcGi Nunibcr: Wet Dete1ition Bashi Operation and Mainter aiwe Agreement 1 ?4?i11 ke::p a ilia intenance reLoret on silk, BN4 . This nlaiittenance record will be kept in a ICT in a Icnol•4-n Si-IL Iocatiorr. Any deficient IiMF1 elernents note (J in d??e inspectii?n 4h?d( he c!rrrc°ctE1( -1, repaired or repla._cot irnmediatcl4, These deficiencies can affect the ix-tted rite- of sb-uctures, srfety of the public, and the removal efficiency;, of the WANT', UlIe wet detention basin svslen is clcfined as the 4vet detentioar basirr, pretivahner-It irlc:ludinf; fcr??ebws and the. vcgetateci. fiIter? it wle is provided. This system (cliecfc came): 0 dares i] cues not This syrstern (clieclc one): n does < does not incorporate it vegetated filter at: Elie ocrtlet. incorporate prep-eatinent ether than a .f'orebav. lrnporta;nt marntena rice procedures: Immediately ti ftt?r° the vet Letention basin is e-stablislie(l, the plants on the ve?etaled shelf and 1?erime.Ler• of the INISin should be Wti lteTed tin ic? .ve -!kIy if needed, urltil the plants brecorne established (i:orranonh, six v eeks). - No portion of the 4vet detention pond should be fc_rtilize?i after the first initial fertilization that is required to esLablish the plants on tike veg getatecl shelf. - Stable groundcover should be --lair- tttir,eci in the drain :ge area in reduce the sediment Ioad to the wet detention basin. ?- If the basin must be drained for an zmier gency or to perform niairitenmce, the I 'Shims of scdi?neat th3`,.ri, gh the enlclrger?cst- drain should he I?ur?irrriz,F?c.i to t1?te- nraximun; extent practical. - Once a year, a clam safet± expert siioulcl inspect the crnbankinura, fter the w et deierrtion pond is estabhshe,l, it slrc) c be ins pectecl once a month and within 24 hours alter every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal C'ounly). Records of operation an"i InninLeljance sllOulcl be. keel. Ln a knoivn set location and must be available uport request. Inspechol, activities shill be perforrned as folloxvs. 21ny hroblenns that are fou rtci Shall be repaired lnllnedEi?C?'h`. PiIP element: ?Pntential Prol?Iein: 1-Ioiv I swill rn-rctli?rte tlr r 1 T The entire BNIP Tfre Perimr2ter of the Wet detention basin _ e I.ro p_cr1l. Trash debris is present. Remove the rra4h; df 1iti5. Areas of hare soil and "or Regrade die sail ifs necessarq to erosive oullies leave formed, remove the Il?r anct t17r=n Plant e h!ounca cover and yvs?ter until it is established- Pei vidtr lime and a ogle-time lertilize_r a7Plication. Vegetation is too short or too Mcii?rluain vegetation at a height of long. a resximately- six im.. hC's. 1 oral S11?;i11-V'ct ] _ter?tioclBusinOkM-Rev.4 1Pau-? l of4 Per-wit Number: ?((; be prni'ided ??;' I)Wo) Drainalgc: Area i?'umbea: BM P element: The inlet device:, pipe or Swale orebay Potential roblcm: The pipe is clogged The pipe is cracked Or otliel 6vise damaged, Fiosiorr is occurring in the Swale. St2dinient 11,15 iiCCUMLIhIt(~d ti.i a depth greater than the original clesig'n depth for sediment storage. Erosion has occurred. The vegetated shelf lie main treatment area '«Ve:cds are present. Elect ti1?0ft"ssicm.7l praChCeS slunv that prunbig is neecled to nlaintam opt;WL d plant hea ItI Plans -S are dead, cdseasc?.d or Weeds are present. Sediment has accuinulatecl to a depth greater than t1le original design sediment storage depth. : hill grtno?th COVl r5 ow?er 509 of the area. Cattails, phragniites or other inasiwe plant; c>vci.5%" of the basin: Suilace. inclolr the pipe. I iedirn,:nt Ott-Site. Dispose of the Replace the pipe. Iwg+ade the s:wale if riccess irv to smooth itc,vcT and Provide er;-osiot? Coiltrol devices such as reinforced t,IrF malting, or riprap to avoid future proHeins wit-Ii er0Si,)T1. `,earch for the source of tlicl sediment and remedy the problem if possible. Remove the sediment and dispose of it in a location whero, it will not cause impacts to streams or the ];reap. I'rov%ide additJona! erosion protection suclr as reinforced hirf matting or riprap if needed to _p1cw nt future erosion problems. Remove the weeds, preferably b'y hand. If pesticide is used, wipe it ol, the plamts ratl-wT ti!iM spraying Prime iccordmg to best I rufes,;ional Practices Determine the sourcp of the problem: soils, hvdrology, disease, ctc. Remedy tho probleiii and letilace plants. I?'rm ide a unc-time ±ertili7.r'r ilnplieation ter estiblisli tilt; groctnd coder if a soi± test indicates Lt is necessary. Reprove the. weeds, prefierably by hand. If pesticide is -used, wipe ft on the j-2lants ratlaer dean spraving. Search for the source of the sediment and reme--dy 1410 problem, if possible, Remove the sediment arid, dispose of it in a location wliere° it will not Cause impacts to streams or the. BMP. Consult a professional to remove and ContTol the aigat growth" Remove the plant, by wviping 1lieni with pesticide- tdo not spravj. Form Start{? E ID: o!nt on basin Cy:C.At-E?ew.-l F'a«1 1) of 4 Permit Nunihep: (,,o hc, rovided /?vD YJ? Dminl,ee Arc;t Nurnbur: BM P element: Potential Problem: How I -will remediate the n 11 CRY The em['arrkment Shrui -, hav starred to grow Remove shrubs itrtmediately. On tile embankmeTif. kvidence of mu,skr<tt or Use traps to remove mt.sl_rats and lbeever activity is present. cons,tlt a professional to renic)vu hcavers. I A h.c%r has started to flow on Consuit a dam safety .spc°cialist to the en bankment- remove the tree. An annual inspection by m ?L AL, all needed repairs. appropriate professional shtaaw?ti tlanl the en?':anklnerat needs rekrair. (Jt bcabltc) [he outlet device ? clominc, has accurred, r?Ieart t>ul t1_ae outlet device. l?ispasc j of the seciirne.nt oft_ site. The nutlet device is damaFer_l receiving water I rosion or other silin.s of damage 1aav?e occ:urrecl at the ou tlet. 1:cpair or r Jace tine outlet device. t'oratact the local NC Division of l1`ater QualitN! Regional Office, or the -101 (D ersight Unit al 919-733- 178 ti. The measuring de-ice used to determine [he sediment C1eVati(-)n S11,111 lie sue h tIlLIt t vvilI rive ITI c1CCLtrL7te depthze?1?Izn¢ a?cl nc?treadiiy? ?,enrtrate into acc mutated sediments. I`heri the permomerit poc)l depth reads 7.5ft - feet ijj the zntain pond, the sediniel:t dull be iv moved. When the perm aneri_t p(-)(-)l depth reads 3,5ft- fee[ in the fore Lry, the sedime'llt shell be removed. BASIN MAGR_,',P4'1< Gill in the hlartnsi Pcrmnnea t fool Elevaiion S:cdiinetrl RerrrnVai _ 171)JY) PC matron Pc,o? ---------- I 1-/Volunae\ Sediment Riemnv;d Elev i[ion 379,00 Volumc/ BOI[ )ril Elr nti,> 78.00 It M I'll ---------- -- -- -- --- --- -- sed,ment Bottom Llc watioan ' `5.t,() ! ft 1Im. S 117rd e edl meat ore-rage t'(alt?! BAV i1'7AIN POND Form YN 1Ui-W'et Detention Bashi ULNT-C'cv.4 Page 3 of4 Permit ?dumber: (to be prol'!!A"d bi' Di1 1 aCitll(111?ed[L' iiIld ag7cc hk my sumatunf belo1\, that T Ml- respDr1,s'ble F0T t.l7e perl'()mlancc ()f'the rtlaiatenarlce procedures listed above. I to notif, I7Lh'O r.lh rly prohien s with the srstc,nl or prior fm anv chail"es to tI)c svtitenl or rest}L)nsihle pari . Pr ojec! rtcr.rre:(jell eraticllr I1 _C0111111cM21 CCntLr, FucItil i' 3rin, -Ivy BA ]p (bairn, -c (11-c a runrher: ?,Vcstr,rrl Storm water Pond Print name:u1 i t t s? ?? Tilde: !Address: ? E r N Cl _`7 ! 7 7 T}'11o[7C: 5i?--Tnatnre: Datc: 1 i tc: The ]e, L'1-111\ respOIIS1; C P3Ft. should not be. a homeowners assaciation ultle;.ti5 more Than 50% of the lut:, haVc been sold and u i,.sident of thu subdivision has been named the president. S F? ..S 1 t`1 i fr 3 County of a Notary Public i't}r the 5ta1 e of =.j? ,>?_ -. rice hereby cep tif?' tllat daV (if p.L) and a 1;11+?)wleclu [lie due executl?tl ()f tll? for,,c5 nt, w€i detention basin maintenance Is.°cLi iremcnts. witness Ir;y !land and of,fic.ial Seal. Q?ag5?9DOAd6$0ff ff ?a ? C7? 6 352559 `? a a ?; e?' CCTdMf5S40N ? o m EXPlAES 41uf}!2!183 ,? m aoT? RY V)J3 a? e'la9a0dDOW,? SF AL kly commission expirels persunall?- appoared before nle tilis 1 Form SW401-Wc[ D1z((AILI'MI BaSln C)&?Jt-:?clA Page 4 of lr George Finch ? Boney rind ASS®clates, P.A. 309, Ncrih Boylan Avenue Raleigh, NC 27606-1402 Pose Office Box 10472 Raleigh, NC 27605-0472 T 919833-1212 F 91911334-3203 March 24, 2011 Genelrafaons 11 Com erg d Cerfler Sirormwater Design North Carolina Department of Natural Resources Raleigh Regional Office Raleigh, INC Attn. Joseph Gycmfi Re: Deed RestriicHons & Protective Covenants r. tyamfi We have attached a copy of the Declaration that has already been developer for the Generation it Commercial Center, for your records. f-he owr;ers have moved ahead to develop an actual Form which will be used as part Qf the Documents included in all their future land sales. You will note that this Document contains all of the 3 Deed' Restrictions,! Protective Covenants (DR/PC) of the DV~bQ 401 Express Kermit Form for Stormwcter Applications (Version 1). The first (DR/PC) is provided in Declaration Section 1 of the submitted f=orm. The second (DR/PC) is provided in Declaration Section. 3 of the Submitted Form. The third (DR/PC) is provided in Exhibit C, Section 1 of the Form, The fourth (DR/PC) is provided in Exhibit C, Section 2. The fifth (DR/PC) is provided in Exhibit C, Section 3. The sixth (DR/PC) is provided in Exhibit C, Section 4. The seventh (DR/PC) is provided in Exhibit C, Section 5, and the eighth (DR/PC) is provided in Declaration Section 2. The Legal Description for the Project Property, as it currently exists, has not been developed at this time, so a description is left out of this Form. A Description, reflecting the overall project limits, is currently being developed and will be ready and included -in this Forrn, to be recorded, by the time of the Project's first sale. Sincerely, Don Wiggins, GF/BA,,PA F'rcP.,-JC .i BY. Record alld Ret".111= TO S. Toad Adams, ALnfs, Howell & Sizmiurc, P.A. 910 SE CaFY Parkway. Ste. 1()" NC 2) 18 DE+Cll,ARXI UON OF RES T RX. INTI COVENANTS TITS DECL.ARiMON OF P-ESTRIC TIV- C0NT-NI-VNTS ( "Declaration-) is made as of this day of 2011 by Generation 90 Carol ina, 111LC, a North Carolina limited liability company ("Declarant"). NVTTFREAS, Declarant is the owner of that certain real property containing approximately ; 3-2) acres located in Wake County, North Carolina as shown on the attached Exhibit A and more particularly described on Exhibit B attached to this Declaration (the "Property„); and - WHEREAS, Declarant wishes to subject the Property to certain restrictions as set forth herein. NOW, h14ET EFORE, Declarant 12creby declares as follows: I . Restdctions. The Property shall be subject to the use restrictions set. forth on Exhibit C attached hereto in order to ensure ongoing; compliance with state Riparian Buffer Authorization and/or Water Quality General Certification number(s) as issued by the Division of Water (:duality (DVvQ) for the project known as ?. Running with Land. The terms set forth in this Declaration are intended to be and shall lie construed as running with the Property and shall be bindin on De.clafant's successors and assigns. This Declaration nay not be amended without the written consent of the fee owner(s) from time to aims: of the Property (the "Owncr" ). .i_ Enforcement. The covenants and agreements contained herein shall be enforce.ahld by the. Owner by suit for specific performance and injunctive relief, in addition to any other rernedy provided by law or equity. In any litigation arising hereunder, the prevailing paii.y shall be entitled to reasonable attorney's fees, ir. addition to al] ether costs and expenses thereof. Furthermore, the Mate of North Carolina is made a beneficiary of these covenants to the extent necessary to maintain compliance tivith the Riparian Buffer Authorization and/or Water Quality General Certification. These covenants, therefore. may not be altered, rescinded or deleted "4110rat the Mitten consent of the State of North Carolina, Division of Dater Quality. i-N WITNESS WHEREOF, this Declaration has been made as of the day and year In St written above. DECLA R,ANT: GENERATION 11 CAROLINA, LLC a ?`north Catalina limited ]iability company By? Name: Title: State of North Carolina County of a Notary Public in and for said State and County,?certify, t1 at personally came before me this day and acknoxvled,-?cd lie is the _ of Generation II Carolina, LLC. a. North Carolina limited liability company, and that by authority duly given and as the act of the limited liability company, the fore,oin- instrument vvas sii;ned by the as 'lie act of l:he limited liability company. NVI'I`NESS, my and and official stamp or seal, tl:"is tht, day of a 2011. ?Vl'V commission expires: Notary Public ?'?iIlI I BIT ! ATTACHED IIIA? '=- a ° A t, ; I i S = I f. cl [ ? 1 ' ' C I C` L t all L, 0 4 r ? fl? to E ll7 l1 Z1 c ;.i s r E': U ? f Ct f I:1 [i) nr 1 ! t (f) F f dJ - 46 -,[ post I '- p L y V -?A,F??? - yy Y r SLc [? ?' r w ? ?}? M J w L , I tidy g it _,-- a ?EI ?? •? ?[ ib a e? +? ? ? 9 71 soon P 1 0 Ins 1,0 t out 1 ? 1? - " 9 l? y ?' r Wh o" ?5 }f IC .? U' 1 ?t L ?+ " 1 ? I. p 4 ~, ? L• ?'`', ? C? ? ? W +1r `e 4 `' L . f a I ? ?n,G,?r:. Z r c? ^n nl 1 ! ? L ? e6+ n ?S • ? ? Ki;'? i?c; r ` - ? v? ! t ail _. 1 1? 1 1 ? rl • ? a c way's, J ?FwS t ? w f' c t ' -' J A ? ? ? -9 s? r P ? Rollin 5 T' ;I ; l -etrpwa Mill j J i' • ice. r / `; \ - _-?"-`~, JJ rRC p i [) lot #Z ? ?pp9 lip hit ASS t?wi r` 1 1? Old PHAN LEGAL -D. ES `RtPTION EnXHUBIT IBS FRI T IONS ON PROPER'r' 1. Maxiinuin Allowable Impervious Area. A. Tree rnaxlmum allowable tMperdous area (Square feet) per tot is descr[Oed below as identif led on the attached F-xh bft__A. WESTERN POND DRAINAGE AREA: LOT 01: Total Lest Area. Development Area: i.S./BUA Area(ec'A): P.S. Area (2096): Buffer/DS Area: 118,393.29Sf/2.72ac. 105,796.93sf/2.43a c. 84,637.54sf./1.9?4ac 21,159.39Sf/0.49ac. 12,596.36Sf/0.29ac. LOT :s7:rota! Lot Area: Development Area. l.S./BUA Area(80%): F.S. Area (209): Wetland/OS Area: 123,682.O1Sf/2.04ac. 95,679.40sf/2.20ac. 76,543.52Sf/L763C 19,135,88sf/0.44ac. 28,00L.e1Sf/0.642C. LOT --B.Totai Lot Area: 1272101.94sf/2.92ac. Development Area: i.S./DUA Area(8096): P.S. Area (2096; Wetlanrj/OS Area: 61,483.28Sf/1.412c. 49,186.62sf/1.13ac 12,296.66sf/0.28ac. 55,518.65sf/1.51ac. EASTERN POND DRAINAGE AREA. LOT 04A Total Lot Area: Development Area: I.S./BUA Area(80%): P.S. Area (2095: Buffer.,05 Area. T1,412.15SfA.64ac. 65,690.70Sf/1.51ac. 52,552.56Sf/1.21ac 13,138.14Sf/0.30ac. 5,721.45Sf/0.13ac. LOT 048: Total Lot Area: Development Area: 1.S./BUA Area(80%): P.S. Area (20%): 9Uffer/OS Area: LOT S:Total Lot Area: Development Area I.S./BUA Are2(80%). P.S. Area (20%): 54,380.2.6Sf/1.252 c. 47,782.10Sf./1.10ac. 38,225.92Sf/0.88ac 9,556.425f/0.22 ?IC. 6,569.16sf/0.15ac. 430,386.431-;f/9,88ac. 430,3B6.43Sf/9.82ac. 344,309,14Sf17.90ac 86,077.29sf/1.98ac. B. As Identiffed on the attached E:'UlDit :A, LOT "2, LOT Y3. and LOT =k5 are protecte(J open space and pond area(s) lots, where there wlll Oe no "IS.TUA's Mat apply in this project as It relates to the stormwater perTnit. O. li npervious n'naterlals include asphalt, gravel, concrete, bric€c, stone, slate or similar r naterial gut do not include wood clacking or the water surface of swirrirr ping pools. I Swales shall not be filled ine piped, or altered except as necessary to provide driveway Crossing, 3. 7mper-vio"S rhea in excess of the permitted amount requires a modified water quality cer%ific.ation prior to Coristructirrn, . X11 perixlitted runoff from outparcels or future development shall be directed into the permitted stormwat.er control system. These connections to the stormwater control system shall be performed in a manner that maintains the integrity and performance of the systern as permitted. 5. The approved stormwater trerntmerrt facilities. stormwater easements and drainage patterns? must be maintained in perpet>.iity. Alteraticiri of the drainage system as depicted air the approved plan(s) may not take place without the concurrence of the Division of Water Quality. 71I.ll rt5J 551 151 ' - Fox 91905TI %`cs 'March 29, .2W7 Julie Zalkind HER-NLA.-N-ZAL:IUNT NLANA(T1;M]ft,iNT COMPA- N' 27., ? l N. Nori.ood Street Ar€ingwn, WN 22207 RC: Rcoorl 01 :SubSurF:ICC (nNestiQX,:ioli Proposed Sunset Lakc I?oad Retail Facility E?Liitsay Varira, NntIli CaFolina Cleo-technologies Protect -Nc;; 1-0 7-0 SQL-EA Gen'tlernerl: ` Gto f echnologles, ,Inc. has complet?rd the tiLIH10i`iZCd liIV Sti..Iat7U? to evaluate, sub,llr lace sort condhiol".s for the Sunset Cale; POad retail facility proposed for construction in Firqua^,-Varina, North Carolina- Subsurface conditions at the site won iwemQated by dr1llig 16 soil test Wngs at the approximate locations Shown oli the attached Figurc 1. The boring locations "ore esobilhed in the field utilizing GPS comdinates wNed Wm a site pan, and thtrefore the indicated locations should be considered approximate. The test borings v,-ere extended to depths ranging Mom approximately 10 to 40 fiat, bck", site. Bade w4h standaal. punetnIon test procedures pelformcd fit sele`-P.ed Intcrl als to evaluate the consistency and d nsiy of the subsurbicc Sor:S. This repwi presents M hn ngs of file in-sllgatlon and our recommendations concur ng site grading and foundation support. SITT AND PROJECT INFORMATION 'r he proposed prolcct WN involve collsti'm6 on o a roll dud'w5pritent on the t4'i St side of Sunset I-ake Road in Fuquay-Varina, North Carol m. At the time o four =V, the site was unde.,eloped and consisted primarily of previousl} cultivated tarin fields. One Llnoce.upied Single filrndy residence existed on the eastern portion of dic site adjac=ent to Sunset Lake goad. Additionally, nmric %vu(_idlnnds existed :within the uontnd portion of the site. fn.` topographic- 11il'orillatlort wvas available; however, the site appeared to be relatively On. The proposed project will ll7ily C(?I1.tiTC!let7Cln of a retail deve'lor)illNin No conceptual plwt has heed devdopccd at dAs tilde; however, based on our chscussions wadi Don Alig Ins at Leorgc Finch/Bunev & As.i wia(cs, 4%c tinderstand that the project i'dl Ilkely involve a SUNS of retail shop:,. W ilrG e;_pecting that the- shops .vlfl lllC.!' Y be shoe story devclopnient supported cm shallow iS undad n5 and slab-on pnde. typical consaucdoa for We type of projects involves masonry load bearbg walls adl inferior columns. Typical , all and colunin loads are generall'y' in die Ldni?e Of ; to -5 kips por hilear but (Uf ) and 50 to 75 kips, resp ctlvcly. No InfoCTnation reg i-ding site grading has been developed at tills Mei h(svever, we are antlcipahng that cut and 'ell dCPIhS',Vlll DOt, (,y eed apl?rt?xilnately 5 to '10 feet. Elei•in:iri-Z.all; nd 114,inrlgoillent C."a, Stmset Lake Road htemil AM, March 22, 2007 N Y2: ?2 In addition to the rM devel:.aprnern, we urlderswnd that the proj=1 swill al >o KwWde an exWnsin & Products Drive through the site. Products Drive will handle the traffic volume enmed from the new retail devclopnwnt but will also he ewrided to serve as a possible connewr road some time in the future. Based on our discussions with pc:rsmmel at Ramey Ken[) & associates, ,we und'Qrstanid that the ar crage (rally %Ialffc gcF[CratLid from the retail center 'viii he npp vlmawth Q00 average daily' hips (ADT) per dt!v. However, if the rood is uxtcnded as a col uUcr stnet, traffic vohsmes cif up to M000 , )7s can be expected, AREA GE01-OGY The project site is located within fiu0uay-%-arina, North Carolina ,which is located flung, the edge of the botnidauy bc1 7c?c:n the Piedmont and Coastal Plain Geologic 1 ormations. l he actrial prOltCt Site appears to be itilated v: ilhin the Coastal Plain Physi igraphic am! Gt.ologic Province in an area identified on the geologic map of North Carolina its beirig comprised o the Middurldor'' Formation. Near surface cdimwnts gcnerafl consist of sands, silts,, and clays ,vhich have been depo shei.l Ah itiily. The undcrlying hliddendorf Formation is typicxlty UUMPI' nd of gmy to pale gray and orailge nludston%s, sands, and sandstones. Thesc materials have been dntcd to the Cretaceous Period. The Coastal Plain E orniMion, hi which the site is located, is general, characteri zed by a. i]::1m more subdued topography whicli is assaciatod "ith the significant erosion, incltidung R?Igr3tl(i[1 of the shoreline in the geologic past. - SUByl-.-FACE CONDITIONS Generalized su)sinkme pmRks prepared Rom the hest boring data are attt hi2cl to this repo as 1, igur:.b 2A and 2B to graphically illustrate subsurtacc conditions encountorcd at. the ditterent. locutions or the site- %Morc detailed descriptions of the condhAns encomimcd at the indil'Id A boring locations are then presented nn the anached records. Subsurtaee condi ions un the site are. clli3ractenzed by the pI'esuwe of some Dear surface topsoil ii,11ich varies Kin being nonexistent in some areas to as inuch as 12 to 30 ill bes in the vJcinitl' of borinus B-5 and B-6. The deeper topsoil thicknesses ire likely associated with previous IS cl °arrin<g that have Wen pushed into -- lower wet Circa li ithirt. ,he wooded portion of Mlle site. Generally, topsoil thiulinusses over flit) i;:a)Oriiy of rite site aFv typicillly less bin G Whe.s. T,_incier lvll? the topsoil, the majority Mile borings encounicred neaj surface silty ,sands w'liiuli exhibited penetration resistances typic aQ, in the range of 2 to 9 blows per tear.: (bp f) within the upper feet. A ith iritireasint- depth, the pcni?,iration resistances t ,plcally hyronsed, and the sods generally, transition into _a Clayey sand and sandy clay interspersed with strata or SiICV sandal, Penetration resistances within the soils hclov, j 101 were uis tlv lli Te range fit 7 to 30 bpi; hol=tever, sovuNd zones or sorter soil with penewadmi resinances of 3 to 5 bpf liven also er?cr>tintei?ad in some of the borbg5. Tho r Qority of the borings mere terrninawd at (Opts of- approxiniatei, l U to 20 f-ect bNow gmde within the sandy arml clayey soils. However, bonng B- I 0 was ema.ied to a depth of ?0 feet below !Trade in ord,cr to valuate the &OPC; SCi1.5 with r'C'_?<Ud to seismic design CritMa. That boring encountered srirldy and clayey Soils to approxinialely' 40 feet with the clays becoming ve hard and ha v penetration resistances ui excess o 100 bpf at approximalely °10 feet. Based oil oily 4;ip3ricrlce, the nil?h penetration resistan ee'•s cnc0untered in trig base o that We OTC My ancidawd with the top of the underlying rock formation. Groiinclwatcr was encountered at depths varying Pont 0 to 1 V6 feet below gn de in the Was at file time of boring cornpiction. Ho,, e er, it should he nCiicd that the near surbcs soils at Chi' sic are condinive to t&: Herman-Zalldnr9 Co. +dar,??etn+:ntSunset Lake Road i;etaii pacilit , khmh 21 2UCI r pag 7 temporary dev?elo ethuj' _ pm per-.,hC?, groundwater rgroundwater l:Ollllli[(.11T:i 1111r1Rg pe]'iG'd5 of wet wClltllei', and 1}TIi1 ?'.i()URd1V?lit.1• levels will fluctuate during, different periods of the year. R C0; IArLND,\110NS Tic following reconimcndations are made based upoil a rcvle?v o ti(,; attached boring data, our M AU-standing or the proposed construction, and past e..`,pcriencc with s1RTilar pf-U)ects and subsurCacc conditions. Once Site, jua.ding and strucwal plans are avYluble, we would appreciate being prot,Ided lvith milt information so chat these reconTnlendatitions may be conf fined, extended, or naodified as necessary. ,?ddiuonally, should subsurltice conditions adversu to those indicanni by this report be encounterad chniag construcr%, those differences should be reported to us for rovin and eornme.rnt. Site Gradlna t..iln3lilei"atlO'T:s. Subsurl.acC conditions encuunlemd dilrhocl, our iuvt,tigaiion appear adequate for the proposed constniction. However, IA results of our bohngs and a pl'ohe Tod inspection of the site per ornied wAh a Which diarnewr rod indicates that the hear surface Soils in most areas of the site arc vep loose to depAs of butvreen u W IS inches below she grade. The depth of soft soil increases in sonic of the ]laver elevations of the: property and in most of the pwainno cultlvuted fields. Because the near sui-lt?ICe wel'V 100SC ;ire Moisture 301ISitlvC, we recommend that. grading be scheduled during the v a, in r sumnwr months of Kc ?, ear when higher ambient air tompemtures genera, result in Vver near surface rrloisture contents 'which fill greatly iacditale g fading peradons. Site gmdkg should begin ,with do mrnoval of all topsoil and vegaMbon Quin roposed pavement and huilding areas. Pis previously;' discussed, we anticip:.lte that topsoil thi&nesses will gencinily be less than 6 inches allhough sonic th.icke, topsoil should lie expected' in the In-wer lying areas of the site. The clearing operations will also rcquNe i-lt'_.I17dWon of the cAstlrlg oil-she structure as Nvell as removal of the septic 6cld and septic systems Ir That siructure. Any e` cavatiorhs which are maple to remove hem such as undeq,,rourld i;mks OF Septic 'systems ,hoWd be C:wlilllicd by an BR?dicer prior to hack-falling to veriiti, that 110 Sub°_Fade repairs ni'c, rucluired. Once all ,Lripping opet'atlons are completed, we rwommend Umt II'iose areas at gred'i or i.1Csion'L'Led t4 receive till bc prookolied Qdi a partially Laded di.iop truck or similar pies.:; Of glibber tireii cr.luipment. Any area ',viiich rut; 01- purnq6 excessively in thy: opinion of the engin?ur should be tlllderctlt to film bearing or as directed b.,,, the engineer, } asud on the results of the sail test horings, ii- appe:.l.i's that sub mde improvartunts. !Fill be required over me 1;I8?Cirlt?' ot' Ihe" site. These repairs can he ?rC04, jrlC HANd by exctlV ing sonic i.:;lGhes in advance of clearing C)puaioris to help lower groundwater levels, particularly in the lower lying north cenlrai portion iii the site. The efW"mcss of ditching the site iv ill he dependent upon whether or not a good oulkill point exists. f ( )ncC Lhe stripping nperGt ono have beuil completed, we ri:cornmend th,A consideration bC given to 1CR8[l?yfln the upper 3 to -1 re.et over the illajorli'y' of areas which 'will either be filled or exist at grade. it app'ars that the Ilh;ijUrhty Of the Subgr'adcs can likens; be denslt ed by ': thinttor`,` compaction of dic loose- hear sLrrc2ce sands. However, sor,le areas of SOtt near Surface clays do exist "Turc dlsclngy, diyin!r, and recompactiorl kvirh a slue°p'S r foil roller r!la)' be mquked- Appr'oxiinaicly 75 of the subgxadus are cxlmcmd to be granular soiis which will iCSpon(j ftl?'Oi-ably to vrbraiory denSlAatls n Me recoP'nund utl zing a ls, vlbriitory roller having; a IIi1r1imun1 1t71'g'il! Ui 10 ton`i which Srrl)Cdd make at iGlist four overlapping passus in 3ltCr"I13tU dil'ections across the ex-posed sulagrades. The compactor should opooW at a walking speed vvith the vihrtitor engaged du!°i ig the densillCat operations,. llcrman-_Z65nd Nlallmemm, Co, Sunset La1.c Rwd RANI Facility March 22, 2007 Page: -1 The- on-?iic soils. whh the exception of topwA% will be suiAN rot reasons structural fi11 im lhl? site. If arty; additiori(11 ol'f-Sit.O borrow rna(crlal is needed, ?' e recommend those materials eoinsht of silt:}' and chgey sands or loxy plasticity silts and clavs "Adi unified SAl C hssifv„ ations of Sit, SC, NIL.,, and CL. All till material placcd on the, site should be compacted to a nArti nual OF 9510 of the stmidard Proctor nm,\im mn dry den` iLy exclcpt in 01" find foot beneath pavemcnts and Door slabs whore this i qu0ment Should be increased to 98`,''o of the standard Proctor maxile mu drr density. A,'e recoutniend that all till IrWerial be moisture conditioned to nithin +/- 'o of Opt1n1111I1 moist-111.e Conieni to facilim"'_ Gllripachon operations and to nlainu)..in stahihty of the f111 Sect€f I;, 4??C recommend that 11eid deiisin,- tuSIS be perfortlled during the :ornpacii(on operations to berm' that the requirud de?gr(:2 of compaction is beillg a l1ieV4,a, L)?tf1! lilt l _1Vat1o11 CoiIsidL;ratfioils. 3ased on tile- remits of rho sol1 wA liQring shallow rock was no( eryoutmered on the sk, and w'e do not wdc"we that dlffl'M oxonvitlon will be a consideration. Vic anticipate that all utiiity excavations can likely be completed utilizing convcntion,11 rubber tir?.;d backhoes or t ach Mounted excavators. i-oundation Sulal_h?!rt Considerations. subsurr.Iee conditions on this site appear favorable for the use of shallo« spread footing oUntdaiiops to support the proposed structures provided that ,heels of the building, where grade M he raised are tilled in a cmit:rolled manner, and that awa, that currently z,,,Jst near finished grade are properly mpaded. ode recoinniend that foundations beiiring in property cornpacted fill nuitcriais or in approved residual soles be Cltislgnei for a ITlax1rr11iTn allowable bearing p1''SiUre {"lF2,70(1 pSf be;1I°llig ii II11n1nYni11 of 12, ]Illalt;ti below final grade for Rost proteci.ion. 1 e strongly rec n-imer:d that bearhig conditions be hispected by a gcotcchnWal engineer to ;:eriQ that adequate bearing_ and suitable materials have been cncell ntered. Sholtld foundations need to be e`iteilded to provide adequate bc°irln!r, ?ve recommend that o ur-excavalcd footings be backfilled to design bearing elevarion wilizing tinhorn-tl-v graded 457 of #67 wasltcd Stone orconcrctc,. In order to determine prehrnirtaU ,:;t enient estimates for the 1_}roject. (NoTechnolo;ies utilized the F1-T.1 procedure NAhicli correlates material ty-pws and penetration resistances to estimated soil colnpressibility, Cleo l echnologies reviewed the soil test bcTing dWA and chose borings B-1 and R-8 to perforni pie analysis, Boling 13-1 represents some ofthe rnore t vomble subsurface conditions on the site, "dide boring FOS represents one M0 9rC'ils ,vi[h 11nuser polls. The analysis is ha.scd on the asswnption that the very luosu sands winch. (251st within the upper 2 to 3 feet of the site are properly densified as previously discussed !during the 1201 grading opertltio ts. Providing these repairs are properly, imphernmed, the results of our calculations indic".ite that :olumn loads of ui+ to 60 laps at boring B-8 will resuh in t_ud settlements of approsinaately 1 inch while colt.nnn lowd of over 100 k]ps can he Silppoi`ed at boring ]}-l 1S';tl] ti1t;1I SP,ttlelI7elits renlll]IIII"lg llndel' I fnUf1, k)lflei'e[it131 S:SttlllilCFlts i.]' u`'.pi =cd to be approximately one-hall this ni,,, ^ itudc. If column toads ivill be higher than 60 kip% st>r e replacement technoues can be utilized to lower total sudements at selected columns as needed. If pro"'ic.cd with tl schedule of column loads, plods v°,,iti proposed bearing deptt,s, Ge0Tecl)l1010gies Aill be 11?,ppy to C'Valuate Methods for i-a;ilciug total settIcnieilts as required. (_Jcr_1 f chnG ogles aNo evaluated t'-5IIn1I led sett omen of wall Footings. A. pr?ViOUSI), discussed, bonnets B- I and B-8 were evaluated, The resuRs if (hose calculations indicate that wall Rming :widths of approxknatel-v 2 to .5 feet: (tip to ? kit) tiviil result in total settlements of less than 7 in?cEi. Diefcrential settleinculs tine expected to the ;WKoOmawly one-half this n1agnitudiv As prewiotlsy discussed, this assumes that the eery loose sands within the upper 2 to 3 Peer are properly repaired during initial grading uperations. Based i,,n these scilih-,rnent CStirllaLes. axe do no', aiidcipatt? that S1gnTcant repc_in wi11 Lt regLlRd for will lcmt((1f? fbtuidatl'ons. Heril ao-Lallund Management Co.. Sunset Lake Road fie?ail Facilirt/ 'Morel ?' 2H7 Page: j Approved residual sails or compacted sttucnmd fill vvill prOVide ader_luotc supporf for conventional conorctc stab-on-grades. Any till materials placed benc;ith the slab should be compacted to a minimum of thu standard Proctor maximum, dry density in the tint±I foot beneath the slab). recommend that all slabs be properly, jointed in accordance .with ACl gAddhics to help control shdnka--? cricking. Additionally, all jr) nts should be sawed to a duNh_ of at Was one-third of the slab tlWmQss. W'e recommend that "vatcr'cement ratios be canAdly controlled to help reduce die inagnitrrde W o„crae shrinkage "rich occurs. PaVelil?lll De:Iit n Conslckj_,Lfion . In order to eva!ua,.c pilvennent sections for the project; GjeoTechnoingics rmewed a ira'ffic u v du-ition pertorrn7ed by personnel with Ramey Kemp & Associates. MisCd on file resin`s o th'at anal} k, it is cs6rnated that dhe retail cen'ler will general(-, apprmxrruii.tt'ly 1500 AD 's per cl, i-ii_iltieder, personnel with Raimm y Kemp Associates indicate, that the road may eventually be connected through as a collator road and that traffic volumes could increase try 11 000 ADT's should the road end up serving as a cut ihroq_, road. As such, i3edrec1wowes is presenting several pavement sections wriic:h will include accommadriting only traffic getlerated from [lie. retail center as W1 as addit oral zraMc "Tick could be eymctwd shmdd the road be LIxte"ed through as a collector ro;id. In order to evaluate subgraclc support characieristics, ChuoTechno5yes complomd one standard Proctor compaction and C'aHbnha HeaiWg Who (CB,'-) tryst oll a rtipresentative sample f onl the site. The results of !11 jai analysis indicate a measured CH'R vahle of exists Wr the grmiulilr soils WAch exist on flits site. Ho`'wnw, , no "railing plait has been esrabhshed at this time, and h is possible that portions of the site may receive some cut which Co€Ild L'xpose the claw. , soils which c?,_ist within some areas. Thu chgvy soils Oll ypiCally :vsihii a C'31 P value o uo mere than appr03ims'uely 801. Therefore, we recommend tltdizin a ±desi?.-n CB--11L value' of 8% for construction of piivcments on this site. The lesults of our pavement design caleti mains ;ndicatc that an appaTrlate pavenieiit s-,ction for hrodtlats Wive if subject only to the traffic volumes generatwd by the ne" retail center, would be 4 inches of asphalt over 10 Oaks of CABC base course stone. In less traveled areas such as prima, drive areas "Win the retail centeq the Section could be reduced to 3 incites oC asphalt overlying 1G tactics of stoilo however, the heavier section is will recommended for truck loading areas. If the parking configuration will be such fl-int healy [nicks ?xould not be expected to Cut across parkin lots, the pavement sechon within car par 6nl stalls could be reLlue 7d to inches (it asphalt ovedyin, ( indles of stone. if Products i iive gill be cxtended through such that it could evenmally be SUNCCtcd to AIYF' volumes of lO 000 vehicles par day, our calculations indicate that an a,ppropriate pavement sc 6on would still cmisis oN Illcncs of asphalt overlying 10 Inches or CABC base Course :tone. AVe recoilln[cad that till asphalt and .stunc ma.tarials cumply Mtli NCI)OT spcciticatii7n? with ri:gard to loath material composition (Melding gmdatllnn) and compaction requlremen s. Me nlost impoliant factors afflaing pavement file in the ana of the site any the condition Oflhw SUbgYrade irrimedlately Drier to base course stone placement and post construnion drainage. As previ:?unV, discussed, m recor_amend that the subgrade of all pavemurit areas be procibolled and [brat any yielding areas he iilenti lcd and wpaired duh;ig the initial'umdkg uperationi Addhional" all subaradu sails shoidd bw recoripacted to a minimum. of `_ 8 a of die slrlndaRt Pmewr maMmum drv densh immedlarcly prior to bi;se course .stone plilcc.Inent. recommend ihrit all pavement ar'dar be pr-lpC.rly graded to promotw rUn-Off of %vater and to prevelit pondinLg o water can the pavement surface widen Can lead to eventual saturation of subgrade sods and the loss of pavement support. Pcrnhed wMer is a Ilroblein in tilts geologic lorm7ahon and drainage swales or trench drains should be used on the uphill side of paVCd iireas io prevent sattlratiorl ot-pavemem su'ie:rites during the wetter periods cif [lie year. \`??`\: ' c-r -1_• IiJo911(Y??(clll?.F: '11,1. _- Herman-La[1;ind I4lanageriierit Cr). Sunset Lake Road Remil [=acWty March 22, 2007 Pay, . 6 sh-me Stabilicy, At the time that this report Nvas issued, GeMchn;1(ojo s had not yet been prm idad whh, an), ini!,innaTion regarding proposed slopes Ra the site, Coco details regarding the proposed dopes !lave becomd nio-e ?irlalllCCl_ i ec' 1 echnologies should he provided "Ali that Iclorril tLioa o lha i appropriare stability analysi and recomnlendathris to improve sllapc stability earl be provided, Seismic Uesian QnSiderations. G o-FechnulO+fIeS evIllLIawd seismic resign erhahi. on Ae sho by coiri.pletin ; one soil test boring to a depth of 40 feet below" gracle where the top of I WPy or rocs, 'vas enc,,)L tzred. Based on the result; of that test boring, as well as our review of the North Carolina Buildip (fade. it appears that the on-site soil conditions wlii rCsu in a seI5mic she chssi5caiivn MID" ID" for the propnsud development, SUNG'1ARY In suirimmy, subsurt'ace condhions an the site ap"ar suitable for the propo-,?c:l deve?.epinelit. The on-site ON are somewhat moisture sensitive and therefore Nvo recommend chat site i?radiiig be compicted during the warmor summer months oh the year when higher ainhient air tempermures will result in la cr near surface moisture contents. Addidonally, the upper to 3 feet over, the 111'jorhy of the she Consists o very loose sands wkich will require sonne densification during the iilrtial _£radhig operations. IN-)h groUndwater conditions exist in so-Tic areas, and h `would faciiitse gr'adi ig opwatl n to ewavare some dr iinalge r-lltnhes through the she provided a p is4hw ciown"radient outFr.iil point can bc identified, Structures on talc site can be stippmed on conventional shallow spread foolings and vdtill footing found i[ioni deslfli")L-d iOr a iriaxiinum I1llLvdaC>a bY::"iring_ pressure of 7,5011 psf. Column loads in the mange of 60 to 100 kips can be utilked Wthout total settlanients exceeding 1 inch. if mare c'onceriiratcd flails vli1l exist in some areas, stone oplacem.ent techniques can he Iitilized 'lip reduce wall settlements to 1 inch or less. 0[i,-,e more specific structatr.al loading information. and hcarin ; depth-, have be.n 1dontiticed, Gco t echnologies will W glad to assist in leternli&g4 stone repla,-erncnt depths at specific locations iF r; iquired- C-'onveminnid asphalt pav-cments be adaquate for support of traffic loads on this site. Additionally, the Site vvili fall Cin er the seisinic We class defiihdon of "D" with r(_gitrd to se.i mic considerations. {_COl ??ihnC ll? IeS Inc, raPPIOCiaLes the opportunity to have prDvNed you with olIr servicc. oil dais project. Please Curia ! us if you should have queshons icgar,diiny this repo, or if we nlay be of any furthcF ,h:, ist:lnc Sncuruiy, Ge , 1 oehnologies, Inc. r: A NC Regcitndon No. 1d _;?.} .i,ri.l3ch en'„ f 07t302ewdoe I 0----" I I =t ll r If) ` i =LI n Ci I 6 M,< f ? I ? I uj C a U_t i V., V., 10 ` ?10 Ui ILL - - - - - - - - - - - - f I + V, - i i I i I I - I I ? ? II 1y I? 1 7 1 I I Tl I I I I. i -? ? ?' ICI _ ,1 {,; ,I 14 I ? w ? e??t ? i'u r I 1 ,hill `CIL 0 u? (1) LL 0 z w LLJ bJ 7L 0 L-U pLpyLs {.L. 0 ys• w W t U L. fl: ?^ a a ? a v ? TS - a 0. rn ? f-- U ,?_ ? op C7 Kl f =a co ? r IT C> -r r' I cn ? to rte; \ }. T C" cc r r' e t_-- _ - ,---??- !- . G N -t cn co CIA t op O V- z- z - cv n C) 9) LLI 0 uj e 9 < 0 z z o 2 L ' IRI y? C) I- CJ -_ to S-/ N? rn (n L. n ? 1 JI ? u-- C d N ] LLJ ] 7 y m En m 3 rry * 0. 0 cLU = o o ° 9 17 E 5? ly C a t? ?- z C7 r' ?J r j... f€ z W f e-- J co 0 LLI \ LL , Lf) R- M '' j Jt I . s x ? nt cat ? LLI m E ?. ,t Ll W. C'7 T cm :?9 r Cy r I? ` .t? t cl) 00 ® 0 O °ct r M Lo CS ppcQyy L W cc cn Q) '` C ) LU a ? 0 Q,) ?3 , ® if?- O n C) i? ?p LO LO uD 0-1 Ct) 11 VI CD } li i a j C-) ` r f ' r I I' i - OJ I a I i j 7 ? i i w I 1 1 I , a C%j co 7t CD . -r r D O 0 O c ?u ED iJ r; :L CLl U; p.; Q- 7) m -a C l? Q1 CL 0 iv r n LJ 1Y1 E % F t j 1 it III !i!i I I 1 i :. ?: alp i n r f ? r l i I d a w I- ? v t ? i I x-- cr? f r c E t i i E I ? s CN CIO (a CD LL N m u7 G CL, O Lt ] iV 0 "6 cc C J U r, O rr 7-1 C O r? N m u? lit LL -?T BO RJNG' RLC0 D DEPTH DESCRIPTION ELFV.=kTION PENETRATIC)N BLOWS PER (1-r-) JT.) (LLo 's/f- .) six INCHES t! 0 II) 20 40 60 100 13.0 15.5 I)I;w.-Il Sli'V Fine to Mudntm ,S A-P _) i 1 1 ' 2-3-I f 1 u? 1 Uu a G .Y ro 1 A? 4-s-11 V'crv 7G lir 1-M 53nL1 ?1V S.[f R?nR? rci-rnlilLL d Ll 15 { Y 'r )-« wa[CF al /Flelli Sl.if?dC BORING NUMBER B- I I AIT 3.. 1 -1 0,-;, PAGE 1 F I r H r? U ri I 'ZI r TESTB ORING RECORD I)EPTI Ic 7:0 I5_0 DES(-;RIV-11ON ELLVATIOTN I'I,NE'YRATION BLOWS ITT {FIT.) (BLOW'S/F'r.) SIX INCHES 1) tai 20 .10 (10 7611 l ousnll _ bc.; Loosc'Fin Si :, ' In ; ,vT? •crrLc??si?r_.Ci?,ls1l,?C1;°)'?,reScLPJL) - - -- ? - 2,-- L ge S T;m Cla c?. 1< r -. 4 l1 7-10-20 - r oo ;? { 1r[?n i c!! Cla; -v Fm,? tc NIcdmin ANT, I' ? : 3 Very Safi ( mnO P, F;]_' ,?i ?ur `ll! 1_ l:r'.Y :'L / f I , 6-4-2 Loo, ,2 Tnn Siln Fm L to `vlcdium_S_IND ' S?tI i W014-4 --mit lr t Sr R,2d CL 1}' . Bunr!e (emi_:?a[?d at r i 1 ?,r(:?I?F?(Itiva(i:r :xnco=_!nr?red at b' .3t u?, e of i?r,rir.??; JOB NUMBER DATE PAGE I ()1 1 Df:pl,H DESCR1I'TION ELEVATION PENETRATION BLONN',w PER (FT.) 01,1,,) (BLt)WS/fT.) ST:K TNCRd',S G G 0 10 20 -40 60 100 1, j} 6.5 V CPr` L'Jo`, L1_ah: haT n .` di F -.,,le L' ,J!di n] l = I?IL) 5m l i i -2-2 tacuiunt Dense I„aq LT-m S:lov iut to Mcdwill SA' !D 5L f'i (.,rLL L Tan 1',iae S in11y I t_ ._ L_ Y 5C t -1-7 -9 liurinj Lcr inat i ttl 10 5' T f I iIl-oundltater, clnco:!rite reci at 33.3' at time o I,,DiiTl JOB NUMBER BORING NU MBFR DATL PAGE i OF 1 1-i'1-t) j(C-EA TEST Bs.:.DI21ttiG RECORD I EPT'I-I DESCRWTIO t; T;., VATION 1'E'JI;TP-- T110N RLOW PER (FT.) rBI_,()`a '?;II T.) sP, I-NCIII s U 11 1!1 In In F;r9 1[in 7.i1 6.5 10.5 V ter, Lose (rr :^sh L ?otv? gilt; Pine Io A1" {iw? i 7dT) :.[? ?? - V ry Stir, ulrar,ge & lluv,n Pinc to Sandy CLAY 5-6-171 S[Ltl P[-av Lail Fme i;U d? ?ilt1 C[. ?A ?i - nt I Q 5-6_8 CiFo!ltldwater ericounte ed ai I(Y at ornt, G- 1 orlfl1_>. JOB NL;'AlBUR BORING NUMBER F3- DATE ;-14-G7 I':- GL I OF I - - _ - - TEST Bf_3II-I1ING Plll"CORD I EP M (FT.) ii.i1 << 3.4 10 DU]SC RIPTION ELENT--lMON PE, NE l'TL4,TIOIN BLOWS PER (FT.) ( I.,43`v? a1F P.) SIX INCHUS A 10 70 40 60 100 c [. ra rl u,ecn , 1n 1 i:. ):ieainn: " , Icuut; t i n;e B. o;vn to Gray Clayey Fuse to le lrut t SAND -, c V? 7-R S[iffCraY5c 33n vvu 1--iiit tia,t?1y Sr]-,, (-LAY CL ''ZI 6-5-9 T?urin:; tenitina;ea ?t 1 i;).?' l i ' C l r I 1 d l l ?iJ'L?Liilu«'?t1ZC':f?C1UC)L,C'iICC?L? 3l 4.?? @I LJfT1C t7?'liiH'iCi". JOB NUMBER i-0-11-0-110-1-FIA I3OM C7 NUAHBL+ I: 73- 5 YALE F I v TEST BORING RI:C't.II:D DVPITT DFSC'R1P`I'ION FLEVATTON PENETRATION BLOW'S I'UR (ET.) (FT.) (BLOWS/FT,) -SIX tNCHES fl Tit If) Jil -('A inn 2.5 6,0 I s.0 15,5 lopso,? Ll .:'5c t 111h[ Cl1 ?1lh 1-1,11 [U ??{C aL1T1 J ?'sl ,5 \'(' T .,_ ?e T;m S iity ranr -, Lu£.rtic _° .t 73 IS1:1 E C r, - ?rin?> t?.rr?lricta3 1; l5. 3-2-2 1 r h I 1 lrn:?uti?+.vvaterencoui?tertcl al ?.5 at 1 ultr ,?Fhuring. DAT a-14-07 sz c v c; IIu IT III_ TEST I3d)1 tNG REC0IW DEPTII DE'SCMPTICDN ELEVATION I U--.N TIZ-A ION BL-0\N'S PER (FT) (FT.) (BLOWS/11-1'.) SLKLNCHL:S 00 0 10 20 40 60 100 1.3- 3.0 7.0 12.0 15.5 Lm c Tan gilt-., tine u7 `yl J;mii SAND tic;1 rar fir. + ire ai T Cr , ':` ISM Cl. , 2-2-2 Ntctnum Jcmc+_'i:a+__ =lave" Fine tc,'.v(zllul1.i \lc?iui Uense [ ?ra,??;th T .a S!r? 11, Clayey Silty- Fire Lo Mti d;= SAND SN1 T ! i 9-9-111 Laos SAND S ? Domig 15.5' __ i C!-ot:ndwa#er encoumer d ar (; pit Gme o but im- JOB WMBER 1-07-0302)-EA B0RING XU IT;F,R 13- DATE I'.MA 1 OF l (m) 3w To 13,0 ? 15,5 TEST BORING IU,,CO-Rf) DESCRIPTION ELU aTION Pk .NF-.TR:VTT0-N BLOWS PER (FT.) (-BI,0'kVS/INT.) ;SIX I?lCHES 0 10 ZU 40 50 100 ,psull Ali j ,III si. mi Jli , Fine o '`il,,,d 1 n SAI il) - - ?`:ry L ns'_ (1rar.?e d'_ 1 C-1.!ye} i in_ [o I L liu:n SAND S(' ?- I. 1 g v _ ; = - U!ow_LM Gr?}' S?lr? F in4 ?.ildL? ti?<i ?? - --- I 6q -3 I l T[i rl if t: CR?[,12.e FiiIC l'!n11?' •ilY1 I'L.it ?' C:I, ?f1I IIl:, lCI IilI[i:ilL ? S:1 15 204 I f I Jrrlll,lrltti`,awy encomlC a at 37m C One of My. BORING' i3- S DATE 3-14-07 PA(E 1 CAP 1 "VEST RORtltiGRECORD ?__ 1?El'TIL DESCRITI'1'iCI_ti LLEVA' ION PENETRATION BLOWS PER (FT.) (BLOC %si F-L) SIX LNC11ES 0 11 (1 -'0 41) 60 100 ?:5 TO 13.0 l 5.] 5[i[; F-.,-i Jmm,-- Fin:: Smdy CLAY C1, 4_4-j I? 34-1 Firm'Ci y S-, Orange Fine Swidy CI Al Y CL ? `,!cilium lienS- Or,-ingssh SAND i - cunn.?.- lanrma c:. a41'? j' i 3 4-6 f P x {J1OLlIhj?4 iC:1 C1i DLll7CZf% at ' 3[. i[ITC O bocing. JOB IiNT.''i?'1i??[?!.'{R 1 ]? j 7 BORING 7? :V.`,N HESS DATE L AG L 1 OF 1... B- Q p DEPTH n. p 3.( 7( I3C I7.5 -2.0 ?7.0 33.0 ?Ir: u TEST BORING REt.OL ) l 0 10 20 40 60 100 BLOWS PER SLR: LNC,HEs 1 np ? i 1 ? -- -- ? `"? - La4,.;c Brc n & Tan Sih m,: ti-L;H 3-3-3 ;r,?rc,? ,.,? rlll? `_•ulil:' S,It, ?.L.=;-?? rr? -; . ° `' r_n I O f SZ linm L'em'C i r.i e `;fi f aJ CI; Silty Fuse l1-t}-13 T niii=:: (. r,z,e L- Tan Silt r i -,c ,(J :rCdinn, SAND Si' I I 3-4-z4 } c )' 1.47 U.iC Z "!'1 ?II`.?' r'„7G ll) Nrtdium SA'Jf) ;I rVI,I ? a NIC;lium Der,5c. , r Sli"' tlr C.1ye; 5 't-y ;c to Snl_ ','tfdam) SAND - I 6-4=7 Medium Dense U., an?e CIS.. y . in- 5AI r) ? I i 1 3-5-:$. ., ,., -. I k -I f• 4 ; , i y L ?/I i VII Had Gray Fine to Mediuiit'.S .idy CL,A1` ,,tv'Pe,KoIcs I2 50t0"? 3Jri,;e t rJria awA at 40' - CjrminJ%valcr cncollfliCC"CCI l.tl. n. a( J'frl- Of'17Ui'IhI'. JOBINUMBER BORI G ' TUNI TMER B-10 llA1 L 14 -CIS P, ECORD DEPTH D SCI?IPTION ELEVATION ITTINT TIC- TION T-r.) (FT) (BLONYSTT.) 3:0 7`.0 1 '_.:J 15.5 BLOWS PER SIX'LNC 1 [-,.S t- u r c., r^ JOB NUAIBEP, ?-( )"-030?-E \ BORING NUMBER p,I1 DATE PAGE 1 (X,. 1 y ?iroLinciwauc r ewoumcicd at 6.`)' aT UC[T' of butin D 13TH (FT.) u.1 7.5 110 15.5 DESCRIPTION ITL ATICN PICNIC TIZATION BLOW'S PER (1' `I'.) (BLONN:SIT'T.) SIB LEI CILES 10 20 40 60 100 1 )soil / S??1 ci-v Lino se fan to CJi Lc Sili'. 'Fmc to i11C1•'.iu[n [i Y(_'.ivr e -ine to lie t lm S.ail1 y.Siay CLAY C M,,fdoiii: Dense F%,,J ish, , an ClII_ye_, F n3 tC `11::dlluln SC y' i / E y 4-7`1 r i lrl't7L1!1Q?::;ilCf' Cll?;t}ilCll:c'.C?? at 1.P at Lln-ie i7i ?7C)r!flti; JOB -NUNBER -E -A BORING NUMBER B -1 DATE 3 -1 v -0-, PAGE I (--)F I E DELTA (FT.) n ) !J 3.0 7.0 12.0 15.5 L T1,,STBOR,I-NG RX C01W LII ILI: I DESGRrPTION FLEVATION PENETRATION BLOWS PER (FT.) (BL,ONVS/ T.) SIX-f- ITES 0 10 20 -10 60 100 2-I t' Ll )?- Cti, CJ 1,,1 }:inu ltt 'f[ ) .i[7; CLAY I I`. f . CL -, ?"'t - Fil.c <<, ,`-Film SA D I? 6-10-13 'v1crl.imn D?:nsc i < r 'An, Fine to a,e 3n;m ; 'I) tib_t Born;.; fcr-mn;st,ad ;ii. I j T f I I t1t0!illE-'vi"d1L'f ?i1CUU^i?Ced 1T ?.8 al Liflic of hor, JOB NUMBER BORING NUI!'il F-k DATE PA GG i OF 1 I;-13 TEST',[ BRING RECORD 0F P'LH LDE,SCRIPTTON (F-L) G. C. 1.0 3:0 6.0 Mo ELEV< TION 'PENETRATION BLMN'S PER (FT.) (BLClWSIFT.) SI;x IN CIIE-S t3 ICI 'rn AA r() rn1 T irir Ofanu,i; l T m in-- ti Fidv t `L,,'C,- I:L -)f all Qe ?.k. Br,,w r gin;; to e!liun ti-?ru:•. lit`; l?:_A I -Ll ? 7 1 Star ( rui , S; . J. Fm'- to ML:dulm Sand" cr.AY C'L ". noose Orri,,i:ii Taa C1ay;v Fin to Medium SAND _,?; 7 1v()r-a-u M. d!urn 0 mgish T ,,in lgedium `"?,???i) S-6-J t GI'G!,1Fv±;V3'Ct I I_)'7C CLiTi(: ?)I boring. JOBNUNIT3ER 1-07-0302-IA I'sCDRi[NCT ICI '1lil?E P-14 DATE 3- 1-+-07, PAGE 1 0 I TEST Bf?IiiNG TZLT0RD i DEPTH DESCRIPTION ELE LOTION PENE,TRATiON BI.(;>WS PER (TT.) (l"%) (BI,ONVS/ T.) SIX INC IES ( M X 19 -fil CA in" 7.0 110 15.5 (7:COll111?1L' 1( 1 C? COllilLe,i'C? t:l 1,6';?( ornc o borl'ThT Veu L.cosc Tan S: l_fCrt,'il(I}'r?? I Qi -- still t1 1, ;.' & bi0 `ll 1-m = LLA'_' CL 1 N[ci im Cie o-e Or I, ?e a: Lleml B.i r: ('ial ? :ins ?. 4-6-7 --iG-lO Loos- im' ?'? Grap,?il!.: F ??_ ? LI•iL?- ,m o ri ,I Boring Ccmnin acd al 1 ` 51 . C 4-4-4, l [ Ii JOB NLINIBER 14-)-;7-U-)02-1-1:,) BORING NUMBER B- I DATE, 3-14-i;, t FfT BOMNG ItECOI?I) ©.C LQ I,1,_ 2[).S DLSCl:1PT1pN" 1iJL,EV TCO PE'N-m'i;Lik'riON BLOWS PER (Fl") (BLOWS/FT.) SIX INCHRS 0 10 741 411 (11) 100 ?ufl lrolvn 2 iha:; e S.ir (,1 s,Y Cl - - i ,V.rdiun Ue ?? ( h in rs'? T:'n ('1r.;t:a %hejnlm SAND ,C l? Suf G-EaY & Tan k'lnc Snlldy S: CLAY t l"I ?i 3-4-6 Boring tercninatcd :tt 2G S' 3 GrDI_t UTuVatet- c"countcral d, ;' at time of bor-inJ. JO.B'NUNIBFR -?-i?-U3ri -1_:_ BORING NU-NIBFR P 6 T)ATE 2' -1-1. -(i PALL I OF l .- ON lift (D Geo Te td t DATE: NO i E.S chna{ag es, Inc. 1-07-0'302-EA 3/28/2007 PROCTOR DATA: poi Opt. P:1,,iistu:e = SOIL DESCRIPTION CBR DATA SHEET JOB NAME: SUr1Se; ! ako Retail SAMPLE I.D. B-5 DEP s H: 1-3' TEST FROCEDLIPE; AS iii 1) 698 Max. Drv Dprvsity = 121.5 PCF Dark: Cray Silty Sang C13R SPECIMEN DATA swell Data tviOl.TURE CONTENT l 7•'', Irl'sllak Reading 0.0 0 ,,%'E :T iEI,JSIT'( 1312-7 !os,,,,s ft- Final Reading 0,070 ? CRY DENSITY 1^ 1 L' ' s 1 cts.ft. IG'lold Height q609 COi:1PF,CT!0rl 99.5 10 1 e '."JUII 0.00 LOAD CELL 2000 LB. RATE OF DEFORMATION 5 inimir.. SIJ C .=1RGE USED 10Ibs. 700,0 000.0 500.0 400.0 300.0 200.0 100.0 0.0 0.00E 0.100 I 0.200 0.300 0.400 0.500 0,000 j CBS: o.1' 30.0 i I E C B R i J.2k 1 .9 j S „ELL 9.0 I' .:' _ . _ m 135 1 Y Jab No: 1-07.-03.02-EA Date: 3128107 -- - 13U I - - ' _ Job Name: Sunset Lake Rd. Retail ? ,• Joie Locution: Fug1say Varina, North Carolina --- - - I Boring No: B-5 - _ i • - Sample No: Bad 125 Depth: ) ? ' ..._ TEST RESULTS Method of Test: ASTM D 698 120 F f 1 Maximum Dry Density:: 121.6 PCF O timum Moi t C t t _ ? ?? I r I \I p s ure on en : _ ? ) ? r _, -Ott-_-}•• 1?_-.. Natural Moi t C 21 t 4% t u f s ure . on en : ..._... 11 - _ I Atterberg Limits: I L PI J ._ \ Soil: Description: Darin Gray Silty -Sand j ?, 11 Q ; b r. •} • c? - W 105 -f I 100 H --I f CURVES OF 1909,1 SATURATION 9,rj FOR SPEC;FIC GRAVI 1- EQUAL TO: t I 1 I. ? I ? ? 2.80 270 9Q - 2,60 1 I ?? 1 -LLL I I 80 I I ? fi. I 0' . I I??-I-?? 1TT?f?' ?r '15 20 25 30 WATER CONTENT (Pr ruent Dry Weight) MOISTURE-DENSITY" RELATIONSHIP Goo-Cechnologies, [tic. PA 5 Width of VFS Eievaton ?t do°vnslcpo base o, level lip Elevaton at the end of To VFS that Is farthest from the LS Slop o (frcT5 love! lip to the end of the VFSr Are any draws present in the VFS? Is here a collector swale at the end of the VFS? Bypass System Decign (if applicable) Is a bypass system provided? Is there an engineered flow splitting device? Dimer!sions of is channel (see diagram below): ltd B VJ y (Row depth fcr 14-year storm) freeboard. (during the 10-year storm) peak velocity in the channel during the 10-yr storm Channel lining material Ores the bypass dischargo through a vreiland? Doris Ire channel enter the stream at an angle? Explanation of any " Othei" responses abovs ft. card fm51 a? (Y or N) C( or N) (Y or N) (Y or N) ft fit ft ft ft ftrsec i FIWI uric. (Y cr N) [Y ar N) W ? z 5.2Cbo0n,I ldrrinn_ the" I-Actin °-------b 1 M lti t ---------- M 111 1. REQUIRED ITEMS CHECKLIST -- - ?? EDIT Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Inihai in the space provided to indicate the following resign requirements have been met. If the applicant has designated an agent; the agent may initial below- If a requirement has riot been met, attach justification. Requried ltem: 1. Plans (1" - W or larger) of the entire site shovJng: - Design at ultimate btw".d-cut, Oft-site dranage (if applicable), Delineated drainago basins (includo Ref oval C coefFcient per basin). Forebay (i€ appGcab!el, High floe; bypass system, -Maintenance access, Proposed drainage easement end public right of way (ROVJ), and Bounder es of drainage easement. Initials Page or plan sheet number and any notes: _ L' . Form 5VV401 - LS-VFS -2Rlov2s010-Rev.8` [rite 2 of 3 Pion details i l" = 30' or larger} for the level spreader shotuing: - For ebay (f applicable), High flow bypess system, Ono foot topo lines beha'een the level lip and top of stream bank,, Proposed eminage easement and - Des?gn at ultmate build-out. 3. Section view of the level sareader (V = LD' or larger) shovAng' - Underdrin system (if epp':icabic), - Level lip, Upslope channel, and Downs!ope, filter fabric. A; Plan deteiis of the flow eplittingdovice and supporting calculations (if applicable) 5. A construction saruence that shows how the level spreader wiltbe, protected from sediment until the enGm drainage area is stabil¢ed. 6. If a non-engineered VFS is bcing used, than provide a photograph of the V=S showing that no draws are present 7. The supporting calculaflons. 8. A copy of the signed and notarized operatdon and maintenance (OW) agreement ' i s Form 5W401 - LS-VFS - 28Nou 010 -Rev.8 page 3 of 3 1 r i STORMYVATER MANAGEMENT PERMIT APPLICATION FORM 401 C;ER-1IFICATION APPLiCATiON FORM LEVEL SPREADER - VEGETATED FILTER STRIP (LS-VFS) SUPPLEMENT This form must be compietely File) out, printed, indfaled, R irf suba ifted. I. PFtf?JEC71hJFORMATION --- Proies[ name Gen°_rai ons 11. LLF Spare Parrelfs rContact name Doll Vviggins Phcm..e number 919.333.1212 Dale _ 'Jamh 21, 2011 Drai+ age am a number - 2 --- --- IJ. DESIGN INFORMATION The puipose of 111e LS `JFS Buffer Rule: Diffuse Flow Sto mwater entc LS=J; S from A 3M P Type of VFS Wooded stofwmator seiback (slop ,3 <:a°v) Exph natlen of any "tether" rCSpen5e5 r:Uove If Stormwater Enters be LS-VFS from tha Drainage Area D Insgq arEa Jmp moms surface area Percent impervious Rational C crretzident Peak flow from 41!1 1 ilvhr storm Time of ccnorntmticn Rainfall intensity, 1 Q-yr Slonn Peak flow from tho 10-yl- SIC!M Design storm Mlaxlrnu,m cmc;unf of flo'vi ulr ectcd to rf e ,_S-VFS Is a flaw 1;y7>ass sy'-em go', no to be used? Explanation of any Tthet' resrons s above fk' C?'V.i fl-.7r:Ie C•? ?i -?T 1 I? lh :, - r; ilk of -h,= kfr-, °l/tt [hc'Cirn cfs t)p r')[ Ci 7' plctE 'r6 G CLCin 6i iil° iCilli min Iii r::% CC rplele ihl S CI: IIl:l rll-' .;rlTl. IrlA-.," - _l r: rut ihl= :_CIil :,f in' $;l-m ds 0r, not con F tc 1:11., ._? u,,1, t i ?")[m Pick one: cis D., noI c,;1 _. tJ ?' , li n ;, f :rrrr (Y" or N) t;n nni ccrnrl Wit- lnis _ec ierr el l l b t,< If Stormwater Enters the LS-VFS from a IBMP Type of B M P Wet defenL'on pond Peal; dmisharga from the MY during the design atcrrn 0-15 fs ?oak dlscl-err,: from the BNIP durng 111e 10-year storm 034 cfs t ax m ini capacity of a 100-fool long LS-'JFS 2 cis Taal; flow dimcted to the _S-VFS 0-34 cfs Is a flow uyposs system g: ng to bu us°d? Y ? +y or EXpens ion cI any 'CIingr responses above LS-VFS Design Foiet;ay surface er::a p sq fl Depth of forc-bay at stor water entry point n f utli of forEt,ay at stoinimalel exit poin' in Feet of level lip F.eecNd per cis 50 ftlcfs Gamputed minimum tat-gth. of 11-.. eve! lip nc-aiad t. tf f=., ;?%IA61 - I_S-VFS .. 29ND,,201D-Rav;81 pan '! of J Length of level I :? Widen of VFS Elevaiior! at bcmis'.^p• base of ievel lip Eeva[ion at i;ic erid of [he VF5 thai is fartht,,st from 'he L Slog (front Ievel Gp to Lhe end of ?'Te VFS) A.rc any dfaws present in ine VFS? fs lherY a collector s rr••lo at G 1.2 er:d of the VF,,,? Bypass System Design (if applicable) Is .:, hypasc syatctn pm,, .dcd? Is ihue an ergine=,red flow sp.tlrng device? Dimensions of the channe! (see ciagram below). f.I CZ W y (flow depth fc; 10-y?:,ar storm) freeboard (d:!ing the 10-year sf.c ?1) Penh ve°ocily in the channal curing fhc fu-yr stole Channel lining material Does the bypass o scharlro through a w?!land? D> s 67e charnol enter the stream at an angle? EKplanation of any 'Olhe,' r: spcrr,es above 35 ft m $ °1'31.95 tn?sl ^ 381.00 tms! 1.50 n ", gar N) n (Y or N) Level spreadar ',n it -i Ci' Y (Y or N) y (Yorh1)?°oac Fr C. f!lar d !E_Iso!! _v? .; Lll ?..?n-7?7g cafes: ft ft ft ft ft ftisec pe ara: J (Y or N) Ul N) For IS' ter strrtns a control box will dmcf lager stanns to a riF-r,.p dissipat O.- ^ad ? fi.eal??,rrd i,ituua?a d?? ifJ-t?r s!n[;n1 ? S'Ic!1]111i?tl?: jlr-?,'r pti?11F31 ' Ivf tt?# EDIT- Please indica!e. iha page or plan shert,iumhers where the supposing documentation can be. found. An incomplete subrnittai package wijl result in a -equestfor additional information. This will delay final review and approval of the project Initial in the spece provided to indicate the following design requirem ,pts have beets meL If the applicant has designaled an agent, the agent may initial be:ow. 1f a requirement has nest bean met, attach jus6ffcadon, Requried Item: Initials Page or plan sheet numberand any notes: Form SVV40 t - LS-VFS - 291•ICv201o - Rav.B page 2 of 3 Phase 2--3-17-11 Type 1124-hr Rainfall= 1. tit?" Prepared by GEORGE FINCH/BOhlEY AND ASSOC. Page 1 HYdroCADCD 7.00 s/n 002626 C, 1586-2003 Aoplied Micracomputer SVstems 3123/2011 Pond 3P. RETENTION POND In low Area = 0.600 ac, Inflow Depth ?- 0.50" Inflow - 6.08 cfs cz 11.96 hrs. VOIUme= 0.277 of Outflow _ 0.15 cfs (c7 15°19 hrs, Volume= 0.265 af, Rtten= 97`:U, Lag= 193.8 min Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 of Secondary - 0,1 s c;fs @ 15.19 hrs, Volume= 0.265 of Routing by Stor-Ind method, Time Span= 0.00-72.00 his, dt= 0.04 hrs ! 3 Peak Eiev= 384.04' @ 15.19 hrs Surf.Area= 15,716 sf Storage= 7,561 of Plug-Flow detention time= 718,8 min calculated for 0.265 of (96% of inflow) Center-of-Mass det. time= 695.7 min ( 1,524.4 - 828.7 ) Invert Avall.Storage Storage Description i 383.50' 63, 421 cf Custom Stage Data (Pyramidal) Listed below Elevation SurfArea 1nc.Store Curn.Stcre V1fet.Area (feet) (sq-ft) (cubic-feet) (cubic-feet) (sq-ft) 383.50 12,095 0 0 12,096 384.00 15,631 6,913 6,913 15,639 385.00 17,836 16,721 23,634 '17,904 386.00 201175 18,993 42,628 20,307 386.50 21,000 "10,293 52,921 21,180 387-00 21,000 10,500 63,421 21,470 Routing Invert Outlet Devices 1 Primary 382.60° 30.0" x 60.0' long Culvert RCP, sq.cut end projecting, Ke= 0.500 Outlet Invert= 382.10' S=0,00837 n=0.013 Cc= 0.900 2 Secondary 383.50' 3.0°' Vert. Orifice/Grate C= 0.600 3 Crevice 1 384.40' 4.00' x 0.33' Vert. Orifice/Grate X 100 C= 0.600 4 Device 1 385.15' 2.00' x 2.00' Horiz. OrificelGrate Limited to weir flow C= 0.600 5 Secondary 385.70` 10.0' long x 6.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.57 Coef. (English) 2.37 2.51 2.70 2.68 2.68 2,67 2.65 2.65 2.65 2.65 2.60 2.66 2.67 2,65 2.72 2.76 2.83 Primary OutFibw Max=0,00 cfs @ 0.00 hrs I-VV=383.50' (Free Discharge) 4-1=Culvert (Passes 0.00 cfs of 4.59 cfs potential flow) 3=Orifice/Grate ( Controls 0.00 cfs) =Orifice/Grate ( Controls 0.00 cis) Secondary OutFlow Max=C.15 cfs @ 15.19 hrs ldVV=384.04' (Free Discharge) L:Broad-C Orifice/Grate (Orifice Controls 0.15 cfs G 3.1 fps) re sted Rectangular Weir ( Controls 0.00 cfs) Phase 2--3-17-11 Type 1124-hr ! ainfafl-1.00"' Prepared by GEORGE FINCHIBtONEY AND ASSOC. Page 2 HydroCADO 7.00 s/n 002626 D 1983-2003 Agpiied Microcomputer Systems ;3123/2011 Pond 3P. RETENTION PONF) Hydrograph u_ fed LF 6 Area;;--6.600 ac Peak Mev;-!?,3$4.04' i e orage?7, 1 of Q 2- ?.a.la?rs _0.00 fis Intl ovr -- Outflow j Losnl ?fy li 0 4 6 Fj 10 12 1.1 16 le 20 22 11 La S 30 32 34 36 . _38 40 42 44 46 40 50 52 51 56 55 60 62 64 G;, G9 70 r2 Time (hours) Phase 2--3-17-11 T'y'pe Il 24-hr ,Rainfal1=7.00" Prepared by GEORGE FINCH/'BONEY AND ASSOC. Page 3 i WroCADG0 7.00 s/n 002626 '_D 1986-2003 Appiied i'vliicrocomputer_12?;ste_ms :3/23/2011 Hydrograph for Pond 3P: RETENTION POND Time Crtfiow Storage Eievation Outflow Primary Secondary !hours) (cfs) icuhit.-feet) _ (feet) (cfs) (cfs) (cfs) 0.00 0.00 --0 383.50 0.00 0.00 0.00 2.00 0.00 0 363.50 0.00 0.00 0.00 4.00 0.00 0 383.50 0.00 0.00 0.00 6.00 0,00 0 383.60 0.00 0,00 0.00 8.00 0',00 0 333,50 0.00 0.00 0.00 10.00 0,04 87 383.51 0.00 0.00 0.00 1200 . 5.27 4,689 383.84 0.11 0.00 0.11 14.00 0.20 7,472 334.03 0,15 0.00 0.15 16.00 0.12 7,520 334.04 0.15 0.00 005 18.00 0.10 7,228 384.02 C.15 0.00 0.15 240.00 0.07 6,783 383.09 0.14 0.00 0.14 22.00 0.07 6,269 383.95 0.14 0.00 0.14 24.170 0.06 5,774 383.92 0.13 0,00 0.13 26.00 0.00 4,921 383.86 0.11 0.00 0.11 28.00 0.00 4,156 383.80 010 0.00 0.10 30.00 0.00 3,495 383.75 0 Ott 0.00 0.08 32.00 0.00 2,939 383.71 0.07 0.00 0;07 34.00 0.60 2,493 383.68 0.05 0.00 0,05 36.00 0.00 2,143 383 65 0.04 0.00 0.04 38.00 0.00 1,868 383.64 01.03 0.00 0.03 40.00 0.00 1,647 383.62 0.03 0.00 0.03 42.00 0.00 1,470 383.61 0.02 0.00 0.02 44.00 0.00 1,324 383.60 0.02 0.00 0.02 46.00 0.00 1,201 383.59 0.02 0 00 0.02 48.00 0.00 1,091 383.58 0.01 0.00 0.01 4000 0.00 1,010 383.57 0.01 +0.00 0.01 52.00 0.00 536 383.57 0.01 0.00 0.01 54.00 0.00 870 383.56 0.01 0 00 0.01 56.00 0.00 811 383.56 10.01 0.00 0.01 58.00 0.00 759 383.55 0.01 0.00 0.01 60.00 0.00 712 383.55 0.01 0.00 0.01 62.00 0,00 670 383.55 0.01 0.00 0.01 64.00 0.00 632 383.55 0.00 0.00 0.00 66.00 0.00 598 383.54 0.00 0.00 0.00 68.00 0.00 568 383.54 0.00 0.00 0.00 70.00 0.00 541 383.54 0.00 0.00 0.00 72.00 0.00 517 383.54 0.00 0.00 0.00 G C ire Post nRETENTIOINPOND ,\Sub at/ ±ona ink6 Phase 2--3-17 -11 TYPe t! 24-hr Rainfall=3.00„ Prepared by GEORGE FINCH/BONNY AND ASSOC. Page 5 HydraCADr? 7.00 slr? G0262o 1956-2003 ?Oaplied P?icrocomputer SVslenis 3/23/2011 Time span=0.00-48.00 hrs, dt=0.04 hrs, 1201 points Runoff by SCS TR-20 method, 1. H=SCS Reach routing by Stor-Inds-Trans method Pond rolLiting by Stor-Ind method Subcatchment 9S pre Subcatchment 2S: Past Subcatchm,ent 3S: Pond Runoff Area=S. 750 ac Runatf Derxth=1.07 Tc=5.0 min CN=;7 Rr,noff=13.21 cfs 0.602 of Runoff Area=6750 cc R! rnoif napth=2.25„ j c=7.0 min CN=93 Runoff=26.15 cfs 1.268 of Runoff Area=6.600 ac, Runoff Depth=2.35" 1-c=5.0 min CN=94 Runoff-2629 cfs 1.293 of Pond 3Pa RETENTION POND Peak Elev=-385.02' Storage=24,011 c; Inflow-26.29 cis 1.293 al Primary=12.79 cfs 0,734 of Secnrlda;y=0.28 cfs 0.508 of 0utfi0W=13.03 cfs 1.240 of Phase 2--3-17-11 Type 1124-hr Rainfall=3. 00" Prepared by GEORGE FINCH/BQNEY AND ASSOC. 'age >J HydroCAD(E) 7.00 s/n 002626 O 1986-2003 A lied d?icrocomputer $ysferns 3/23/2011 Subeatehment 1S: pre Runoff 13.21 cfs @ 11.96 hrs, Volume= 0.602 af, Depth= 1.07„ Runoff by SCS TR-20 rnethod, UH=SCS, Time Span= 0.00-48.00 firs, dt= 0.04 hr- Type II 24-hf Rainfall=3.00" Area (ac) GN Description 2.500 79 Pasture/grassland/range, Fair, HSG G 4.250 76 lAloods/grass comb., f=air, HSG C 6.750 77 ?Neighted Average Tc Length Slope Velocity Capacity Description' rnin? lfeet) rLft/ft) (fffsec) (cfs) 5.0 Direct Entry, Subcatchment M pre Hydrograph 14 13 1 II 10 s B 3 fl LL U J' 4' 3 2 1 0 Type 11 24nh 2 4 3 9 10 12 14 1G 1t9 20 2. 2 24 26 28 ,0 32 34 36 3 8 4, 49 kd Gr GR I-line (hours) Phase 2--3-17-11 Type !l 24-hr Rainfail=3.00 prepared by GEORGE FINCH/BQNEY AND ASSOC. Page 7 HVdro(--AD®7.00 _q/ n 002626 1936-2003 Applied Microcom ..uter S sterns 3/23/2011 Hydrograph for Subcatchment IS: pre Time P reciP. Excess Runoff (hours) (inches) Ouches) (cis) 0.00 0.00 0 00 0.00 0.80 0.02 0.00 0.00 1.60 0.05 0.00 0.00 2.40 0.08 0.00 0.00 3.20 0.11 0.00 0.!00 4.00 0.14 0.00 0.70 4.80 0.18 0.00 0.00 5.60 0.22 0.00 0.00 6.40 0.25 0.00 0.00 7,20 0.31 0.00 0.00 8.00 0.36 0.001 0.00 8.80 042 0.00 0.00 9.60 0.50 0.00 0.00 10.40 0.60 0.00 0.00 11.20 0.75 0.01 0.15 12.0D 199 0.44 11.77 12,80 2.28 0.60 0.90 13.60 2.41 0.69 0.56 14.40 2.50 01.74 0.44 15.20 2.58 0.70 0,38 16.00 2.64 0.83 0.31 16.80 2.69 0.86 028 17.60 2.74 0.90 0.26 18.40 2.7 8 0.92 0.23 19.20 2.82 0.95 0.21 20.00 2.86 0.97 0.18 20.80 2.89 0.99 0,18 21.60 2.92 1.01 0.17 22.40 295 1.03 0.17 23.20 2.97 1.05 0.16 24.00 3.00 1.07 0.16 24.80 3.00 1.07 0.00 1,5.60 3.00 1.07 0.00 .40 26 3.00 1.07 0.00 27.20 3.00 1.07 0.00 28.00 3.00 1.07 0.00 28.80 3.00 1.07 0.00 29.60 3.00 1.07 0.0D 30.40 3.00 1.07 0.00 31.20 3.00 1.07 0.00 3200 . 3.00 1.07 0.00 32.80 3.00 1.07 0.00 33.60 3.00 1.07 0.00 34.40 3.0 Q 1.037 10.00 35.20 3.00 1.07 0,00 36.00 3.001 1.07 0.00 36.80 3.00 1.07 0.00 37.60 3.00 1.07 0.00 38.40 3.00 1.07 0.00 39.20 3,00 1.07 0.00 40.00 3.00 11.07 0.00 40.80 100 1.07 0.00 41.50 3.00 1.07 0.00 Time Precip. Excess Runoff (hours) (inches) (inches) cb:s) 4140 3.00 1.07 0.00 43.20 3.00 1.07 0.00 44.00 3.00 1.07 0.00 44.60 3.00 1.07 0.00 45.00 3.00 1.07 0.00 46.40 3.00 ? 07 0.00 47.20 3.00 "07 0. 10 48.00 3.00 1.07 0.00 Phase 2--3-17-11 Type// 24-hr- Rainfall=0.00" Prepared by GEORGE FINCHIBONEY AND ASSOC. Rage 8 HydreCAC,!9 7.00 s/n 082626 E) 1986-2023 Applied fUicrocomrnuter S stenjs 3!23/2011 Subcatchment 2S: Post Runoff 26.'15 cfs @ 11,96 hrs, Volume 1 268 af, Dypth 2.25" Runof=f by SCS TR-20 method, U,H=SCS, Time Spar= 0.00-48.00 hrs,_dt= 0.04 hrs Type Il 24-hr Rainfall=3.00" Area ac} Cpl Description 5.35+0 98 Paved parking & roofs 1.400 74 >75% Grass :over, Good, HISG C 61 750 93 !Weighted Average Tc Length Slope Velocity Capacity Descripticn ;min' (feet) (ff/ft?l (ftlec? (cf71 5.0 Direct Entry, Subcatchment 2S: Post Hydrograph 2d 2 2 2 2 t 1 ? 2s1-5 rs _6 Type 11 24-hr 2 aWa H=3.00" Runoff area =6.750 ac 6 Runoff VoWme®1.268 of 4 Runoff Depth=2.25 " Tcc?5.® m, in L' CN-3 8 g q -rE u iu 4? ca a u iq 38 40 42 44 46 48 Time (hogs) Phase 2--3-17-11 Type 1124-hr Rainfall=3. 00" Prepared by GEORGE FINCH/BONEY AND ASSOC, Page 9 H dy rogCAUD 7190 s/n 002020 C(,,) 1986-2003 Applied Microcon, putcr Systems 3/23!2011 Hydrograph for Subcatchment 2S. Post Time Precip. Excess Runoff (hours) (incises) finches? __ cfs) 0.00 0.00 0.00 0.00 0.80 0.02 0.00 0.00 1.60 0,05 0.00 0.00 2.40 0,06 0.00 0.00 3.20 17.11 0.00 0.00 4.00 0.14 0.00 0.00 4.80 0.18 0.00 0.02 5.60 0.22 0.01 0.05 6.40 0.26 0.011 0.09 7.20 0.31 0.03 013 8.00 0.36 0.05 0.17 6.80 0.42 0.07 0.21 0160 0.50 0.11 0.35 10.40 0.60 0.17 0.58 11.20 0.75 0.27 1.17 12.00 1.99 1.30 21.93 12.80 2.23 1.57 1.43 13,60 2.41 1.70 0.89 14.40 2.50 1.78 0.67 15.20 2.58 1.85 0.56 16.00 2.64 1.91 0.45 16.80 2.69 1.96 0.41 17.60 2.74 2.01 0.37 18.40 2.78 2.05 0.33 19.20 2.82 2.08 0.30 20.00 2.86 2.12 0.26 20.80 2.89 215 0.25 21.60 2,92 2.17 0.24 22.40 2.95 2.20 0.23 23,20 2.97 2.23 0.22 21.00 3.00 2.25 0..22 24.80 3.00 225 0.00 25.60 3.00 2.25 0.00 26.40 3.00 225 0.00 27.20 3.040 2.25 0.00 28.00 3.00 2.25 0.00 28.80 3.00 1.25 0.00 29.60 3.00 2.25 0.00 30.40 3.00 2.25 0.00 31.20 3.00 2.25 0.00 32.00 3.00 2.25 0.00 32.50 3.00 2,25 0.00 33.60 3.00 2.25 0.00 34.40 3.00 225 0.007 35.20 3.00 2.25 0.00 36.00 3.00 2.25 0.00 36,.80 3.00 2.25 01.00 37.60 3.00 2.25 0.00 381.40 3.00 2.25 0.00 39.20 3.00 2.25 0.00 40.00 3.00 2.25 000 40.80 3.00 2.25 0.00 41.60 3.00 2.25 0.00 Time Precip. Excess Runoff (hLiurs) {inches} finches; (cfs) 42,40 3.00 2.25 0.00 43.20 3.00 2.25 0.00 44.00 3.00 2.25 0.00 44.80 3.00 225 0.00 45.00 3.040 2.25 0.00 46.40 3.00 2.25 0.00 47.20 3.00 2,25 0.00 48.00 3.00 2.25 0-00 Phase 2--3-17-11 Type 11 24-hr Rainfall-3.00° Prepared by GEORGE FINCH/BONEY AND ASSOC, Page 10 HydreCADCR) 7.00 s/n 002626 QD 1986-2003 Ao lied hticrocomputer Systems 3/23/2011- SUbcatchment 3S Pond Runoff = 26.29 cfs @ 11.96 hrs, Volume= .293 af, Depth= 2.35 Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-48.00 hrs_ dt= 0.04 hrs i ype 11 24-hr Rainfali=3.00" Area (ac) CN Description 5.1735 98 Paved roads w/curbs & sewers 1.08'3 74 >75% Grass cover, Good, HSG C 0.410 98 Road Imp 0.072 74 Road Perv 6.600 94 Weighted Average Tc 'Length Slope Velocity Capacity Description (min) {feet) Of[) (tt/sec) (cfs) 5.0 Direct Entry, PARKING ubcatchnnent 3S: Pond Hydrograph U r u. 20- 26 25 cfs 24 Type H 24-hr 22- Ranfall?=3.00 ° ,U Runoff Al ew-=6.6G0 ac Runoff Voiume=i.293 of 14 Runoff Depth92P35" D CNm 4 6 ti 2 6 B 10 12 14 1h iF 7ri 'a^ 74 ?R _)A 3C -11 a-1 ;R 10 10 sI iI '16 4; Time (haurSl Phase 2--3-17-11 Type 8 24-hr Rainfall=3. 00" PFepared by GEORGE FINCH/BONEY AND ASSOC. Page 11 HydreCAD«7 7.00 s/n 002626 n 1986-2003 Applied Microcomputer Systems 312 3120 1 1 Hye rograph for Sahcatchment 3S: Pond i irre Precip. Excess Runoff hours) (Inches) (inches) 0.00 0.00 0.00 0.00 0,80 0.02 0.00 0.00 1.60 0.05 0.00 0.00 2.40 0.08 0.00 0.00 3.20 0.11 0-c-ci 0.00 4.00 0.14 0.00 0.01 4.80 0.18 0.00 0.04 5.60 0.22 001 0.08 6.40 0.26 0.02 0.12 7,20 0.31 0.04 0.16 3.00 0.36 0.06 0.20 8.810 0.42 0.09 031 9.60 0.50 0.14 0039 10,40 0.60 0.20 0.63 11.20 0.75 0.31 1.23 12.00 1.99 1.39 22.03 12.80 2.28 1.66 1.43 13.60 241 1.78 0.39 14.40 2.50 1.87 0.66 15.20 2.58 1.94 0.56 16.00 2.64 2.00 0 45 16.80 2.69 2.05 0.41 17.601 2.74 2.10 0.3 ' 18.40 2.78 2.14 0.33 99.20 2,82 2.18 0.29 20,00 2.86 2.21 0.25 20.80 2.89 2.24 0.24 21.60 2.92 2.27 0.24 22.40 2.95 2.30 0.23 23.20 2.97 2.32 0,22 24 00 3.00 2.35 0.21 24.80 3.00 2.35 0.00 25.60 3.00 2.35 0.00 26.40 3.00 2.35 0.00 27.20 3.00 2.35 0.00 28.00 :1.00 2.35 0.00 28.80 3.00 2.35 0.00 29,60 3.00 2.35 0.00 30.40 3.00 2.35 0.00 31.20 3.00 2.35 0.00 32.00 3.00 2.35 0.00 32.80 3.00 2.35 0.00 33.60 3.00 2.35 0.00 34.40 3.00 2.35 0.00 35.20 3.00 2.35 0.00 36.00 3.00 2.35 0.010 36.80 3.00 2.35 0.00 37,60 3.00 2.35 0.00 38.40 100 2.35 0.00 39.270 3.00 235 0.00 40.00 3.00 2.35 0.00 40.30 3.070 2.35 0.00 41.60 3.00 2,35 0.00 1me Precio. Excess Runoff (hours) (inches) (inches) cfr} L 42.40 3.00 2.35 0.00 43,20 3.00 2.35 0.00 44.00 3.00 2.35 0.00 44.80 3.00 2.35 0.00 45.50 3.00 2.35 0.G0 46.40 3.00 2.35 0.00 47.20 3.00 2.35 0.00 48.00 3.00 2.35 0.00 Phase 2--3-17-11 Type El 24-hr Rainfall=3. 0" Prepared by GEORGE FiNCI-11IE3ONEY AND ASSOC. Page 12 HydroCADIO 7.00 sin 002626 (D 1985-2003 Applied Microcor cuter S stems 3/23/' 2011 Pond 3P: RETENTION POND Inflow Area = 6.600 c, Inflow Depth = 2.35" Inflow = 26.29 cfs n 11,96 lirs, Volume= 1.293 of outflow m 13.06 cfs O -12.05 hrs, Volurr7e= 1.240 af, Atten= 50%, Lag= 5.5 min Primary = 12.79 cfs a@ 12.05 hrs, Volume= 0.734 of Secondary - 0.28 cfs @ 12.0-5 hrs, Volume- 0.506 of Routing by Stor--Ind (method, Time Span= 0.00-48.00 hrs, dt= 0.04 hrs 13 Peak Elev= 385.02' @a 12.05 hrs Surf.Area= 17,882 sf Storage= 24,011 cf Plug-Flow detention time=331.2 min calculated for 1.239 of (96% of inflow) Center-of-Mass det. time= 308.0 min ( 11093.0 - 785.1 ) ## Invert Avail.Storage Storage Descri ption _ 1 383.50' 63,421 cf Custorn Stage Data (Pyramidal) Listed below Elevation Surf.Area lnc.Store Cum.Store Wet.Area (feet) (sq-ft) (cubic feet) (cubic-feet) (sq-ft) 38,x.50 12,096 0 0 9 a 2,09f6 384.00 15,631 6,913 6,913 '15,639 335.00 17,836 '16,721 23,634 17,904 386.00 20, 175 18,993 42,628 20,307 386.50 21,000 10,293 52,921 21.180 387.00 21,000 10,500 63,421 21,470 Routing 1' Primary Invert Outlet Devices 382.60' 30.0°" x 60.0° long Culvert RCP, sq.cut end projecting, Ke= 0.500 Outlet invert- 332.10' S= 0.11083 Y n=0.013 Cc= 0.900 3.0" Vert. OrificelGrate C= 0.600 4.00',c 0.33' Vert. Orifice/Grate X 3.00 C= 0.600 2.00' x 2,00' Horiz. Orifice/Grate Limited to weir flow C= 0.600 10,0' long x 6.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3,00 3.50 4.00 4.50 5.00 5.50 2 Secondary 383.50' 3 Device 1 384.40' 4 Device 1 385.15' 5 Secondary 385.70' Coe,f. (English) 2.37 2.51 2.70 2.68 2.68 2.67 2.65 2.65 2.65 2.65 2.66 2.66 2.67 2-89 272 2.76 2.83 Primary OutFlow Max=112.72 cfs L 12.05 hrs HUV=385.02' (Free Discharge) '?---1=Culvert (Passes 12.72 cfs of 23.08 cfs potential flow) 3=OrificefGrate (Orifice Controls 12.72 cfs @ 3.2 fps) -(0rificelGrate ( Controls 0.00 cfs) Secondary OutFlow Max=0.28 cfs @ 12.05 hrs HIN= 385.02' (Free Discharge) H=OrificelGrate (Orifice Controls 0.28 cfs @ 5.7 fps) 5=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Phase 2--3-17-11 Type 1!'24-hr Rarnl-ail=3.00" Prepared by GEORGE FINCHIBONEY AND ASSOC. Page, 13 Hydrc,CAD;?, 700 silt; 002626 {o 1986--2003 ADF ied Microccmi)ut--r Systems 3123/2011 Pond 3P; RETENTION POND Hydragraph a' u- 28 29 cfs M. inflow Arad,] 6. 01 0 ac Peak Eulev=38,15.02' i0 3 Storage=24,0111 c,,f 6- • 4 2.79 rfs 5- rFi ti- 4 k '. ! cf, - Info•,v - OL, 1-• Prirnar: - c^ZenLFV u 4 q _ o 1u :z .r 10 i _U '; 2h i,6 .'iii 32 34 SG 35 40 42 44 46 4Fi Time (hours) Phase 2--3-17-11 Type l! 24-hr Rainfall=3.00" Prepared by GEORGE FINCH/BONEY AND ASSOC. Page 14 HydreCAD@J 7.00 s!n 002F26 0 1936-2003 Applied Microcomuutar S ;ns 3/23/20,11 Hydrograph fo. Pond 3P, RETENTION FOND Time Irf1aw Storage Elevation Outflow C rimary Secondary (l, Iours) (cis) (cubic-feet) (feat) (cfs) (cfs} _ _(r?fs 0.00 0.00 0 383.50 0.00 0.00 0,00 2.00 0.00 0 383.50 0.00 0.00 0.00 4.00 0.01 6 383.50 0.00 0.00 0.00 6.00 0.10 370 383.53 0.00 0.00 0.00 8.00 0.20 1,364 383.1307 0.02 17.00 0.02 10.00 0,48 3,381 383.74 0.08 0.00 0.085 12.00 22,03 63,272 384.98 12,45 12.17 0.27 14.100 0.73 14,684 384.46 1.37 0,55 0.22 16.00 0.45 14.228 384.44 0.51 0.30 021 18.00 0.35 i 3,988 384.42 0.37 0.16 0.21 20.00 0.25 13,820 384.41 0.28 0.07 0.21 22.00 0 23 13.741 384.41 0.24 0.03 0,21 24.00 01.21 13,668 384.40 0 22 0.02 0.21 26.00 0.00 12,259 384.32 0.20 0.00 0,20 28.00} 0.00 10,884 384.24 0.10 0.00 0.18 30.00 0.00 9,596 384.16 01.17 0.00 0.17 32.00 0.00 8.394 384.09 0.16 0.00 0.16 3141.00 0.00 71279 384.02 0.15 0.00 0.15 36.00 0.00 6,254 383 95 07.14 0.00 0.14 08.00 0.00 5,333 38°.89 0.12 0.00 0,12 40.00 0.00 4,517 383.83 0.111 0.04 0.11 42.00 0.00 3,805 383.78 0.09 0.00 0.05 44.00 0.000 3,197 383.73 0.08 0.00 0.08 46.00 0.00 2,698 383,70 0.06 0.00 0.06 48.00 0.00 2,303 3833.67 0.05 0.00 0.09 Phase 2--3-17-11 Type N 24-hr Rainfall=5.38" Prepared by OE0RGE FINCHl130NEY AND ASSOC. Page 157 HydroCADO 7.00 s/n 002626 9? 1986-2003 A lied i?icrccomouter '?----- S?+stems ? 312312011 Pond 3P: RETENTION POND Inflow Area = 6.600 ac, Inflow Depth = 4.68" Inflow 509.04 cfs c@ 11.95 hrs. Volume= 2,576 of Outflow -- 30.82 cfs Oa 12.03 hrs, Volume= 2.521 af, Men= 38%, Lag= 4.5 min Primary 30.48 cfs @ 12.03 hrs, Volume= 1.961 of Secondary = 0.34 cfs c, 12.03 his, Volume= 0.560 of Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.04 hrs / 3 Peak; Eiev= 385.69' {cb 12.03 hr's Sr_rrf.Area= 19,446 sf Storage= 36,' 10 cf Plug-f=low detention time= 188.1 min calculated for 2.519 of (98% of inflow) Venter-of-Mass det. time= '175.7 min (942.7 - 767.0 ) Invert Avail.Starage Storage IOescritiort 1 383.50' 63,421 cf Custom Stage Data (Pyramidal)' Listed below Elevation Surf.Area Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (cubic-feet)(cubic-feet) (sq-ft) 383,50 12,0°6 0 0 12,096 384.00 15,631 0,913. 5,913 15,639 385.00 17,836 16,121 23.634 17,904 386.00 20,175 18,993 42,628 20,307 386.50 21,000 10,293 52.921 21,180 387.00 21,000 10,500 63,421 21,470 # Routinq Invert Outlet Devices 1 Pnrrrary 38260' 30ff' x 60,0' long Culvert RCP, sq.cut end projecting, Ke= 0.500 Outlet Invert= 382.10' S=0.00837' n=0.013 11r_--0.900 2 Secondary 383.50' 3.0" Vert. Orifice/Grate C= 0.600 3 Device 1 :,84.40' 4.00?' x 0.33' Vert. Orifice/Grate X 3.00 C= 0,600 4 Device 1 385.15' 2.00' x 2.080' Horiz. Orifice/Grate Limited to weir flow C= 0.600 5 Secondary 385,70' 10.0' long x 6.01' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3,00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.37 2.51 2.70 2.68 2.68 2.6-7 2.65 2.65 2.65 2.65 2.66 2.66 2.67 2.69 272 2.76 2.33 Primary OutFlow Max=30.16 cfs @ 12.03 hrs HVV=385.68' (Free Dlzcharge) 1=Culvert (Passes 30.1£ cfs of 30.69 cfs potential flow) 3=Orifice/Grate (Orifice Controls 20.10 cfs C? 5.1 fps) -4=Orifice/Grate (Weir Controls 10.06 cfs g, 2.4 fps) Secondary OJutFlow Mar: 0.34 cfs @ 12.03 hrs HVV=385.68' (Free Discharge) 2=0rifice/Grate (Orifice Control's 0.34 cfs @ 6.9 fps) t75=13 road -Crested Rectangular Weir ( Contro s 0.00 cfs) Phase 2--3-17-11 Type J1 24-tar Raipfall=5.38" Prepared by GEORGE FfNCH/BONEY AND ASSOC. Page 16 Hyd.FoCADC?) 7. 00 in 002626 u 1986-202 (3 Applied Microcomputer Systems 3123/2011 Pond 3P: RETENTION POND Hydrograph V f Q TD-N, cf? 50 Inflow Area= o600 ac 0 Peak Eden= 386.69' 35 Storage=36,710 cf 30.46 ct, f 15 100 3A -N 0 ESPcond-, u It b b V 14 lb `kl 4iU "? 2 24 -_'E 25 30 32 34 36 38 40 42 44 46 40 Time (hours) Phase 2--3-17-11 Type 1114-hr Ralnfal1=5.38n Prepared by GEORGE FINCH/BONEY AND ASSOC. Dace 17 HydroCADO7.00 slr, 002626 c 1986-2003 AppFed Mlicl-occmiDu„ter Systems 3123l2011 Hydrograph for Pond 3P: RETENTION POND ime Inflow Storage Elevate©r, 0Uttlaw Primary Secondary (fours) (ors) (cubic-feet) (feet) (cfs; (cfs) cis) 0.00 0.00 0 383.50 O.CO 0.00 0.00 2.00 0.00, 0 383.50 0.00 0.00 0.00 4.00 0.15 483 383.53 0.00 0.00 0.00 6.00 0.34 2,108 383.65 0.04 0.00 0.04 8.00 0.54 4,717 383.84 0.11 0.00 0.11 10.00 1.13 9,530 384.16 0.17 0.00 0.17 12.00 41.62 36,206 385.66 29.857 29.53 0.34 14.00 1.36 15,356 384.50 1.54 1.32 0.22 16.00 01.83 14,129 384.47 0.91 0.69 0 22 18.00 0.64 14,456 384.45 0.67 0.46 0.21 20.00 0.47 14,223 384.14 0.51 0.29 0.21 22.00 01.43 14.097 384.43 0.43 0.22 0.21 24.00 0.39 14,034 384.43 0.40 0.19 0.21 26.00 0.00 12,512 384.33 0.20 0.00 020 28.00 0.00 11,122 384.25 0.19 0.00 0.19 30.00 0.00 9,818 384.17 0.18 0.00 0.18 32.07 0.00 8,601 384.10 0.1E 0.00 0.1x3 34.DD 0,00 7,470 384.03 0.15 0.00 0.15 36.00 0.00 6.428 383.96 0.14 0.00 0.14 38.00 0.00 5,489 333.90 0.12 0.00 0.12 40.00 0.00 4,654 383.34 0.11 0.00 0.11 42 00 0 00 31924 383.78 0.09 CY00 0,09 44.00 0.00 3,297 383.74 0.08 0.00 0.08 46.0D 0.00 2; 7 7 8 383.70 0.06 0.00 0.06 48 00 0.00 2,355 383.67 0.05 G .U0 0.05 C.3 ry TZ ' Irv Vn kC'llOlil 5 `. r gle Ij?J?? fA?i.. ri T iJ,LCfI - _. ?rt I•YLSWt r,L nA :x ?°?x?G? - '9-d 'Sd1'JI30a6'S' 7 I41 .7mu /ac.Lu.z 5nam 1? 31. .=1 f r ; L F ?2. 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C B: 4? 1th' 1 "y .?v u? 9 h M1 r r ?' c ? -a r ?. r '+ a ? I Fs ° 1 sr r.;:r. s . •:.x s .zn?'>;n..r; :--u??..L-:' nem?u?w. r s,aa?-I.r?1ta { 4? PP_IInit -Nhulllhc.r`: Oo b_, prc)vhled bDIV()) Maiiia;,e Area Nuiiibor: - Filter Strip, Restored Riparian Buff: r and Level Spreader Operation and Maintenance Agoreernent < Vvill 1.cep a maintenmnce. record oil i s BNIP. This nnairrtenr.rnce recort? ;? ill be kept in a lo" i.n ?I known stet IocAol,. Ani deficient BTVI7° elelnunls noted in the inspection will be ed, repaired ilr a t ?1 l_'Q lnl metfia ; t='1 ? ? coricct I?ZtC ;1 1 . Then Clef-cjenclFS c«I-I t.;1C'Ct the Of structur=es, safety of Lhe public, antl t1je rt_nnoval cffici ?nc5? of the BTviI". nr[.;c)rtant nmintemmcc procetiure5: InuniediatelY after the filter st[ i.p is establislnec, an?? ne??.?ly hlaiated vegetation ?Vill be watered twice. ?,vcukly if nueded until the plank L)ecome est"Ibhshed (cornmranly six weeks). Once a year, the filter strip vvilI be reseeded to maintain a dense groivth of vegetation - Stable grouncicover tivill he maintained irr the drainage area to reduce the sedir crit loacl to the vel?etatiun. ls?'o to three t,nnes a year, ;rass filler strips mill he rnovsred and the clippings harvested to promote the srroivth of thick vegetation witii optinaurn pollutant removal efficiency. Furl gratis shoo ld not be cut shorler than 3 to 5 inches and May be allowed to grow as trail as 1? inches depelicling on aesthetic requireiaieaits (NIPC, 1993). Forc?4teaa filter strips do riot require finis type of- mai nlen nce. t_)i,ce a year, the soil i%,ifl be aerated if r),ecessary, 01 ice it year, soil i_)lI tivill he tested and lime will he <acided if necessary. After Hie filter st7,ip is established, it he iznspectecl quarterly and ,vithin 24 hours after every stor nl event greater than 1.0 inch (car 1.5 inches if in a Coastal County). Pecords of oiler tion and maintenance xviti be 1_ept ill a kiioc,vn set location Load will be available upon request. i11sf7t c i;?3z ac %'F es shall he per.forrrred as fciilo, s. Any problei s that are found sI a he repzaired. irnmediatef,,. 1iMI' elenrt_nt: Potentialproblem_ How 1 will remediate [lie problem: The etrtirt° filter strip Trash/t.iebris is present. henu,e the trash% deLlriis. system The florti sputter dev ice The floss splitzer det: ice is iUrzclog the conveymce and dispose (if applicable) tlog_,ed. of ally sedimernt off site. `1-Ie agegei.spiitt.er device is ?NlAe amy rr?cessary repairs or ?lazn?I replace if darnagc is too large li:)r repair. FornI S11'l!=t{ 1 Icve! i-i:•tt= St; Jp, Restored Riparian BuYier 0&,,%i,nReV a Page I of 3 BIVllr-- ' element; Potential rcern: Hoia I will remediate the problem: The srvale and the lee-el I he st1 ale is c 10 ggecl with 1<< prove tile- sediment and dispose lid sediment. ix it i!ff-sife. The level lip is cracked, R pair or replace lip; seltled, undercut, eroded or other??7ise damaged. '1 here is erosion around the Regnide the soil to cre110 a berm end of the level slsreacier that that i5 higher than the lev,(A hp, and si-iows storinia'atci has then plant a ground cover aril bypassed if, water until it is established, Provitlelime and a one-time fertilizer application. Trees or shrubs have hi g nn he;.loi-e them. to gro%v on the sward 01 just _ Rio wnslo-e or the level fip,_ The bypass channel Areas c;i' l:are soil and/or Retrradc: the soil if necessary to erosive gullies have formed. remove tl:e guffl y, anti then r!1.0stablish muLiei em,sion control. url reinforce-unent is %idy the site to see if a larger damaged or ripap is rolling byroass channel is needed {erdarge if dotivnhill• necessary After this;, reestablish the erosion control materiel. T'he filter strip Grass is [oo short or too long ! Alainiaun grass at a height of (if applicable)- a roxImate ly three to six inches. Areas of bare soil and/or Nemade thr soil if necessary to erosive ,'u llie.s liave firmed. I remove t!ie, gully, and then: plant a ground comer and x- ater until it is established. Provide lime and a one-hriiefertilizer application Sediment is ImUding up on Remove the sedi nient and - the filler strip, restabilize Hie soil with -, egetatior if necessary. Provide liiue and a oine- lime fertilizer a ?lication. l'lanEs aredesiccated. ric ide additional irrigation and - fertilizer as needed. 1'lan.fs are dead, diseased Or Determine the sourvc. Of Lhe d rng. problem: soils, liyr3rt7Icg<<, disease, etc, Reme.dp the problem and replace plarts. Provide a one-time fertilizer a. > ?licat on. Nuisance vege[a_tion is Remo%re Vegetation by hand if C110kirng out desirable -species. possible. If pesticide is used, do not alloy it to Bret into the recei.,ing tiater. The receiving water Erosion or other signs of Contact [lie NC T)ii,-ision of V titer damage 1iave occurred at Hie Quality local Regional Office, or the i ou[let. 401 Overi&ht Unit at °19- orin SW,U-101-LCVuI spr"uier, I-'iltr, Strip; ReSLOred Hipariart Bit ffel O&NI-Rev.3 Patye') of " Amid Number: (m be p•oL?rAd Q UNQ'i I nehnlo-?xv-ledgc and agme by nt sig1 alure below tha' i ?71I' re <;pojlSjhle ii:?.` the perforniaiiec?(& Oie rriahmonance procedwv listed above. I agme to nati§ 1 VVCj of a, problen-s with the syson1 or prior to any changes to the sygem or responsible part', pr(l Ccl I:i117?E':_ Lren?rwt10II ff- ??t?ill-IIlert.lti] ?111t?I'._i'l1l?li?tF-?'c]I'fll1. 'VL BAU cbVill0ge ur?et-r 17umber:-Westcrn Level Spreader an Filter SVp TitON ana2cr Address:2731 IN. MQ hirwood StreA Arlingon, VA 22207 PhonY7+?X2- Sig Date: Note: The legal{., responsible party should not be a homconmcrs amocidmi unless rune omn ;ojj of the ON have been sold and a resident of the SuLdivisK liars heen named the tucsi&m. `CT, f t? SE]'f «"?`? z Notarj, I'uNic for the titan: or do hereby certifiy thai ., j-l a i, L.,a,4,k-,/,,J o r personally appeared helore rile this day of MAW C_e f Q?!) and acl norvleL[,2e [.IIL' JL]C eXeCtltion 01' .lie r %going fHwr strip, riparian Who anWor levcd spreadernlairilenance requircmerts, Wi'mess n-i hand and official seal, I p w €_954CIa cOM toIsq+ON i XPlgcs E O ? p ?!JMMA A on `li t??s• Cj ¢Q ? \ p Dat'a' y 94?' 7 % •A9B?F6?R?`? SEAL, My coirlalissioii expires Form 11,'s'l_l 1O 1-i:LVeI Spread, k' er SiAR kstcrred [tjiri :m dui ter U?? lt1-Ftzv:? Page 3 of 3 Width of VFS Elevation at downslope bash oflcve! lip Elevation at the end of the VFS that is farthest from the LS Slope (fro;r; ievel lip to the and of the VFS) Are any drays present in the VFS? ';s there a co!lector Swale at the end of the VFS? Bypass System Design (if applicable) Is a. bypass system provided? Is there an encinecred floe: splitting device? D menaions of the channe! (see diagram be!ow): M B VJ y (flow depth for iG•year stom) freeboard (during the 10-year storm) Peak velocity in 'he channel dunnrg the 10-yr storm Channel lining material Does the bypass discharge through a wetland? Does the channel: enter the streei at an ang'.a? Exp':anetioan of Rr y "{')thee' responses above f frmsl fist'... (Y or Id) (Y or N) (Y or N) (Y or N) ft ff ff tt ft --ftlsec Pick one: (Y or N) IY ar N) r lieeh r,ucttcltF ink L;e i0-v; a3ol7; l ? V-{tl L'17 L_? CtL iU_i-L :dr?`1i t11 ? _______-.__? M i B jlli. Ri -GAC ITEMS CHECKLIST EDIT Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete Submittal paclQge will result in a request for additional information, This will delay final review and approval of the project. Initial i,t the space provided to indicate the follo,,Mng design requirements have been met. If the applicant has designated an agent, the agent may initial below- if a requirement has not been mot, attach justification. Requried item: 1, Plans (t° - 50' or ia,ge:) of the enure site shoring: Design at ultimate build-out: Ol-site drainage (if app§cebie)" [Delineated dialnege basins (include Retionsl C coefficient per basin), Farebay (if applicable), High flow hypa5s system, Maintenance access. Proposed drainage easeme;i't and public right of way (RDIN), and Bouneories of drainage easemeit. Initials Page or parr sheet number and any notes: Form GW401 - LS-VFS - 2gt`lov2OJC - Rev.8 page 2 of 3 2. Finn detai!s (t° = 30' or forger) for the level spreader shoWng. - Forebay (if applicable), High flow bypass system, - One foot topo lines behrtec!t the level lip and top of stream bank, - Proposed drainage easement, and Dosign at ultimate build-cut- 3. Section view of the !evel spreader (9" ; 20' or larger) shove^ng - Underdrain system (if applicable), Level lip, l-lpslope charnel, and Downslope filter fabric. 4, Plan details of the flow sp;ittng deuice and sunpc Ong calculations 6f appk-aue) 5. A ccnsiuucfion sequenoe that shorts hour the lavel spreader wi' be protected front sediment and the entire drainage Brea is stabilized. G. It a non-ongincerad VFS is being used. than provide a photograph of the VFS sho-wing that no draws are present 7. The suppor5ng calculations, 8. A copy of t;ne signed and notarized operat§on and maintenance (O&M) egreeme.nt Form .SW40': - I.,';-VFS - 29No'v201 0 Rcv, k)age 3 cf 3 STORM WATER MANAGEMENT PERMIT APPLICATION FORK[ 401 CERTIFICATION APPLICATION FORM LEVEL SPREADER • VEGETATED FILTER STRIP (LS-VFS) SUPPLEMENT 7 his foro? must be completely rued out; prinied, initi, led, and sabmdtcd. I. PROJECT INFORMATION Project name Genemlions II, t.l.F Space Parceils - -- - L.otmtactname. Dan ltyigglrls PI ano nurn"i.j 9119-933-121 2 Date March 21, 2011 Drainage area number - Tine purpose of 1he LS-VFS Buffer (Rine. Diffuse Flow -- Storrmvater entem. LS-';IFS frm A, pfip 'ytoe of VFS Wooed stun-nester setback (slope < a%) Expdanalic,n of any "?Uler" resp?ns?s r'^ove if Stnrmlrtater Enters the LS-VFS from tyre Drainage Area Drainage area Imrrerwus surface area PuruFfit Impervious Rat,ona( C ctx-fncic_nt Peak flow from th 3 i in./hr shoe? Time et conceniraCon Rainfall iniens4y, '10-yr storm Pink flow from t}me 10-yr stone Design storm P-13Xi1111 irl amount of flow drected (o the LS-VFS Is a flew bypass system w :ing to bs, used? Ex lanation of any 'Other' responses above `f Stormwater Enters the LS-VFS from a WAp' irx of BMP Peck discharge from the BNIP du?r,g It- design storm Peak ulschatge In;rn the BMP d.urina the 10-ye3r storm ("Maximum ca pa6br of a 100-fool ion: LS-VFS Peak Po,.v direr(ed to the I-S-WS Is a flow bypass sys'emn cuing to be use:(? Explanation of any 'Qtfie;' responses above LS-VFS Desicin FcrrA,3y sunace .area Depth of forebay at stem ic:I er entry point Geptim of forebay at Stormvia':e,r exit paint Feet of lewal lip necdded pEr cfs Comnwed minimum 'annth of the ieval lip needed U rar:C?u I ?.1-: !I??s cry :?f the f? 2 Co nos tx?r`?h:fe it s r? .ncn -r :ha ii;l`;. 'JO I1:A CpTNIEtO :his 59[;ti0n ci the 'cml. `fn r?rt ca he erm cfs Du riot ccn'C J[L' hi -r,ilOn C' min Du not r.?mfiet:;? Illis -Kli=;n c .. a (%lr:i , wo'll Do net cornl;l?l= 1`li5 re?tion :?f It s I?; nr 0S ua nc fie fc-, Pick one. cfs J..) I:Ot cc rkic e :hie S Clirin Gf th:-0m1 (Y Cr N) U1 f 01. C0:"'lid ? ih15 -Ci. Co ri ri lh ?lint? Wet detention pond 0 27 cfs 0.4 cfs 2 cfs 0.4 cfs y (Y or t; 0 sg ft d: in in s0 Wofs ft Form SVV40` - t VFS - 29Nov209 0 R:w 8 page 1 of 3 Length of level lip provider; Width of VFS Elevation at d,,wrs!ope base of level lip Flevatio•i at L E•c end of lb, VFS Iiiat is fafthest from the LS S cpe (from ov,ul lip to tie end of ;fie'VFS) Ara any draws prosent in ihn VFS? s them a cuile::ior swa:e at the er d of the VFS? Bypass System Design (if applicable) 1ss a bypass system provided? Is rhFre an er:gin Bred fic,v sp ttsng dov2ce? imensiam of Jhe charnel (see d-agram t4ow): M B W Y (tlo'w (kf)'Jl for 10 yQ err 5:C- rl) f,eeboerd (during the 10-year storm Paa; veioat in the channel during, LFe 10-'YT storm channel li;n1l7 ratris;iaf G ws the bypass ?fschargE: 1hrou_rh a wat;and? Des Jis channel enter Lie stream at an angfo? E+Ianatlot, of aay "011,.V rasx)nses above ,;0 --50 '81.00 379.00 4.Q0 _n n? ft ft fmsl' fmsl °u Y or N) (Y or N) Y f1' or N} y (Y or N) Pl Q? r> p!ar "1.315 ft ft ft ft ft ftf-- + Pick one: (Y or N) (Y ar td) For larger storms a cenlroi box will direct larger stotma to a rip-lap dissipation tad e a a t '7n :'ooiitl (dnrirtz Phrc Io-'-i 'toad ) l e iduuns rir? I O-vi ;;'Urr'ir t -. -- --- --------- b tvi M b B n ill. RE?UIRi=Q iTEMS CHECKLIST EDIT Please indicate the page or, plan sheet numbers Yvhere the supporting documentation can be found. An incomplete submittal package will result In a requestfor additional information. This will delay final review and approval of the project- Initial in l,he space provided to indicate the following design repUiremen':s Dare been ,net, if ine applicant has des!rlrraled an agent, ilia agent may initial below. If a requirement has not been met, attach iusGrication. ReclUfled Item: Inifials Page or plan sheet number and any notes: Form SW401 - LS-VFW - 29Nav?Glf,, - Rev.6` n;:?r, 2 or 3 Phase 1--3-17-11 Tyre lT 24-hr Rainf"ali=1.00" Prepared by GEORGE FINCHMONEY AND ASSOC. Page 1 HydroCAD, 7.00 stn 00262;3 @1 986-2092Applied ptlicrocam_uter Sy stems 3!23/20'11 Pond 3P; RETENTION POND Inflow Area = 15.251 ac, inflow Depth = 0.50" Inflow = 14.04 cfs @ 11.96 hrs, VOIUme= 0.640 of outflow = 0.28 cfs @ 16.06 firs, Volume= 0-61Oaf, Atten= 98%, Lag= 21,46.3 min Primary = 0.00 cfs L 0.00 hrs, Volume= 0,000 of Secondary = 0.28 cfs ? 16.06 hrs, Voiv_ririe= 0.610 of Routing by Stor-In d method, mime Span= 0.00-72.00 hrs, dt= 0.04 hrs 13 Peak Elev= 383.7 1' @ 16.06 hrs Surf.Area= 26,650 sf Storage= 18,295 cf Plug-Flow detention time=816.4 min calculated for 0.6-10 of (95% of inflow) Center-of-Mass det. time= 790.9 min f 1,619.6 - 828.7 ; # Invert Avail. Storage Storage Description 1 383.00' 118,422 cf Custom Stage Data (Pyramidal) Listed befotiv Flevation Surf-.Area Inc.Store Curn.Store Wet.Area feet (s -ft {CUBIC-feet) {CUt}IC fG'?t) s -f$) 38100 23,712 0 0 23,712 384.00 27,847 25,752 25,752 27,396 385.00 29,846 28,841 54,593 30,008 386.00 31,905 30,870 85,462 32,183 337.00 34,025 32,959 118,422 34,424 # Routing lr vert Outset Devices 1 Primary 380.25' 30,0" x 100,0' long Culvert RCP, sq.ci_it end projecting, Ke- 0.500 Outlet Invert= 379.40' S=0-0085'P n=0.013 Cc= 0.9"u0 2 Secondaryy 383.00' 4.0" x 100.0' long Culvert RCP, groove end projecting, Ke= 0.200 Outlet Invert= 3€31.00' S=0.02007 n- 0.013 Cc=,0.900 3 Device 1 384.10' 4.00'x 0.33' Vert. Orifice/Grate X 4.00 C= 0.600 4 Device 1 384.85' 2.00' x 2.00' Horiz. Orifice/Grate Limited to weir flow C= 0.600 5 Secondary 386.35' 15.0' long ,i 0.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 C',oef. (English) 2.37 2.51 2.70 2.68 2.68 2.67 2.65 2.65 2.65 2.65 2.66 2-66 2.67 2.69 2.72 2.76 2.83 Primary OutFlow Max=0.00 cfs @ 0.00 his HW=383.00' (Free Discharge) 't-1=Culvert (Passes 0.00 cfs of 28.95 cfs potential flow) 1?Orifice/Grate =Orifice/Grate ( Controls 01.00 cfs) ==( Controls 0.00 cfs) Secondary OutFlow Max=0.28 cfs @ 16.06 hrs HVIJ=383.71' (Free Discharge) L?==Broad-C Culvert (Barref Controls 0.28 csfs @ 3,2 fps) re sted Rectangular Weir ( Controls 0.00 cfs) Phase 1--3-17-11 Type If 24-hr Rainfall=1,00" Prepared by OEORG"E FINCH/BONEY AND ASSOC. Page 2 jyd; oao 7.00 s!n 0026 J 198 -20Q3 AP13 e°d Microcomputer Systems 3/23/201 i Pored 3P; RETENTION POND Hydrograph 1s. I - L14.04 cfs? nPo„ 14 -- Gutfa,v q g? -- Primary 13 ?nf?oly Area_ ®l 5.2-51 ac - Secnndury 12 Peak Mbv=3003.71' 11 10- Storage=1 00,295 of -- y I' 4- 2- _. _ 0.28 c`s C Ob s=? L a 6 5 10 1,2 14 16 15 20 22 4 20 28 30 32 34 36 28 40 42 •1^ 46 46 ?0' 52 54 56 50 60 62 4, din 03 ,O 72 Time (hcum) Phase 1--3-17-11 Type H 24-hr Rainfall= 1. 00" Prepared by GEORGE FINCH/BONEY AND ASSOC. Page 3 Hyd;oCAD& 7.00 s(n 002626 'y 1986-2003 Applied VicrocomputVr sterns 3/2312011 Hydrograph for fond 3P: RETENTION POND Time Inflow Storage Elevation Outilaw Primary Secondary f7aurs? (cfs) (cubic-+eetl (feet) (cfs) (cfs) (cis) 0.00 0.00 0 - _ 383.00 0.00 0.00 C.00 2.00 0,00 0 383.00 0.00 0.00 0.00 4.00 0.100 0 383.00 0.00 0.00 0.00 6.00 0,00 0 383.00 0.00 0.00 0.00 8.00 0.00 0 383.00 0.00 0M 0.00 103.00 0.08 202 383.01 0.00 0.00 0.00 12 00 12.17 0.838 383.42 0.26 0.00 0 26 14.00 0.46 17;676 383.69 0.28 0.00 0.28 16.00 0.29 18,294 383.71 0.28 0.00 0.28 18.00 0.22 18,095 383.70 0.28 0.00 0.20 2000 0.16 17,480 383.68 0.28 0.00 028 22.00 0.15 10;007 383.64 0.28 0.00 028 24.00 0.14 35,668 383.61 0.27 0.00 0.27 26.00 0.00 13,743 383.53 0.27 0.00 0.27 28.00 0.00 11,808 383.46 0:27 0.00 0.27 30.00 0.00 9,915 383,39 0.25 0,00 0.25 32.00 0:00 8„285 383.32 0.21 0.00 0.21 34.00 0.00 6,936 383.27 0.17` 0.00 0,77 36.00 0.00 5,875 383.23 0- 13 0.001 0.13 38.00 0.00 5,051 383.20 0.10 0.00 0,10 40.00 0.00 4,404 383.17 0.08 0.00 0.08 42.00 0.00 3,890 383.15 0.06 0.00 0.06 44.00 0.00 3,473 383.13 0.05 0.00 0.05 46.00 0.00 3,1311 383.12 0.04 0.00 0.04 48.00 0.170 2.847 383.11 0.04 0.00 0.04 50.00 0.00 2,606 383.10 0.03 0.00 0.03 52.00 0.00 2,400 383.09 0.03 0.00 0.03 54.00 0.00 2,225 383.09 0.02 0.00 0.02 56.00 0.00 2,075 383,08 0.02 0.00 0.02 58.00 0.00 1,945 383.08 0.02` 0, CC) 0-02 60.00 0.00 1,827 383.07 0.02 0.00 0.02 62.00 0.00 1,720 383.07 0.01 0.00 0.01 64.00 0.00 1,624 383.06 0.01 0.00 0,01 66.00 0.00 1.535 383.06 0.01 0.00 0.01 68.00 0.00 1;457 383.06 0.01 0.00 0.01 70.00 0.00 11386 383.05 0.01 0.00 0.01 72.00 0.00 1,321 363.05 0.01 0.00 0.01 -0 pre P t 3FJ- RE-[E-"---'NT!0N UbCdt, ;Re?Cfl +! InIC I Drainage Diagram for Phase 1-3-17-11 J, Prepared by OE(,)ROE FINCH/aONEY AND ASSOC. 3/2,12011 I-iydruCAI ?; r.00 s/n 002326 i9ffii-2 0013 Applied Micrccn mz,uter 5y,tncis Phase 1--3-17-11 Type 10 24-hr Rait7fall=3.00" Prepared by GEORGE FINCH #IBONEY AND ,ASSOC.. Page 5 HydroC,?Dt) 7.00 slr' 0026213 ' 1996 2003 Applied Micm omuter Systems - - 3023,2011 Time span=0.00-72.00 hrsg dt=0.04 hrs, 1801 paints RLInoif by SCS TR-20 method, UH=SCS Reach routing by Stor-Ind+Trans, method - Pond routing by Stor-Ind method Subcatchrnent 1S: pre Runaf Area=627,264 sf Runoff Depth=1.19" Flow Length=250' Tc=6.0 min CN4 79 Runoff=30.05 cfs 1.426 of Subcatchment 2S: post Runoff Area=661,333 of Runoff Depth=2.35•, Tc-5.0 min CN=94 Runoff=60.76 cfs 2.987 of Pond 3P: RETENTION POND Peak Elev 385.08' Storage=57,154 cf Inflovr=60.76 cfs 2 987 of Prirnary=25.90 cfs 1.945 of Secondary=0.35 cfs 0.999 of Outflow=26.25 cfs 2.944 of Phase 1--3-17-11 Type 11.24-hr ,Rainfall=3.00" Prepared by GEORGE FINCH/BONEY AND ASSOC. Wage 6 Hy;droCADQD 7.00 sln 002626 c 1986-2003 Applied Microcomputer Systems 3123/2011 Subcatchrnent 1S: pre Runoff = 30,05 cfs C 11.98 hrs, Volume= 1.426 af, Depth= x.19" Runoff by SCS TR-20 method, Ulf=SCS, Time Span= 0.00-72.00 tirs, dt= 0.04 hrs Type 11 24-11r Rainfall=3.00" Area sf) CN Description 62-1,264 79 3 astUFe/grassland range, Fair, HSG C Tc Length Slope Velocity Capacity Description (min) (feet) (fuft) (fusec) Cfs 6.0 250 0.0,100 0.7 Shallow Concentrated Flow, shallow Short Grass Pasture Kv= 7.0 fps Subcatchment M pre :3D 29 2r 24 22 _ 20 V7 a i8 LL 14 10 a s Hydrograph Type H 24-her Rainfall=3.00°® 0 2 4 6 8 10 12 14 :6 18 20 22 24 26 28 30 32 34 36 38 e`0 42 44 46 48 50 52 5? 56 53 50 62 64 &6 68 70 72 Time yhours] Runufr Phase 1--3-17-11 Type !J 24-hr Rainfall=3, 00" Prepared by GEORGE FINCH I/EONEY AND ASSOC, Page 7 HydroCADD 7.00 sln 002626 r?-r 1986-2003 Applied Micrc,computer SYstell',s 3/23/2011 Hydregraph for Subcatchment 1S- pre TirMe Precip. Excess Runoff (hours) (Inches) (incises) MS) 0.00 0.00 0.00 &00 0.80 0.02 0.110 0.00 1.60 0.05 0.00 0.00 2.40 0.08 0.00 0.00 3.20 0.11 0.00 0.00 4.00 0.14 0.00 0.00 4.80 0.18 0.00 0.00 5.60 022 0.00 0 00 6.40 0.26 0.00 0 00 7.20 0.31 0.00 0.00 B-00 0.36 0.00 0.00 &,80 0.42 0.00 0.00 9.60 0.50 (100 0.00 10.40 0.60 0.00 0,08 11.20 0.75 0.02 0.48 '12.00 1.99 0.52 28.86 12.80 2.28 0.69 2.10 13.60 2.41 0.78 1.34 14.40 2.50 0.84 1.02 15.20 2.58 0.89 00.87 16.00 2.64 0.93 0.71 16.80 2.69 0.97 0.64 17.60 2.74 1.00 0-59 18.40 2.78 1.03 0.53 19.20 2.82 1.06 0.47 20.00 2.86 1.06 0.41 20.810 2.89 1.11 0.40 21.60 2.92 1.13 0.39 22.40 2.9? 1.15 0.37 23.20 2.9.0 1.17 0.36 24.00 3.00 1.19 0.35 24.80 3.00 1.99 0.00 25 60 3.00 1.19 0.00 26.40 3.00 1.19 0.00 27.20 3.00 1.19 0.00 28.00 3.00 1.19 0.00 28.80 3.00 1.19 0.00 29.60 3 00 119 0.00 30.40 3.00 1.19 0.00 31.20 3.00 1.19 0.00 32 00 3.00 1.19 0.00 32.80 3.00 1.19 0.00 33.60 3.00 1.19 0.00 34.40 3.00 1.19 0.00 35.20 3.00 119 0.00 36.00 3.00 1 110 0.00 36.80 100 1. 9 0.00 37.60 3.00 1 19 0.00 38.40 3 00 1.19 0.00 39.20 3.00 1.19 0.00 40.00 3.00 1 19 0.00 40,80 3.00 1.19 0.00 41.60 3.00 1.19 0.00 Time Precip. Excess Prino` (hours (inches) (inches) (cfs) 42.40 3.00 1.10 0.00 43.20 3.00 1.19 0.00 44.00 3.00 1.19 0,00 44.80 3.00 1.19 0.00 45.60 3.00 1.119 0.00 46.40 3.00 1.19 0.00 47.20 3.00 1.119 0.00 48.00 3.00 1.19 0.00 48.80 3.00 1.19 0 00 49.60 3.00 1.19 0.00 50.40 3.00 1.19 0.00 51.20 3.00 1.19 0.00 52.00 3.00 1.19 0.00 52.80 3.00 1.19 0.00 53,60 3.00 1. , -0 0.00 54.40 3.00 1.19 0,00 55.20 3.00 1.19 0.00 56.00 3.00 1.19 0.00 :6.80 3.00 1.19 0.00 57.60 3.00 1.19 0.00 58.40 3.00 1.19 0.00 59.20 3,00 1.19 0 00 60.00 3.00 1.19 0.00 60.80 3.00 1.19 0.00 51.60 3.00 1.19 0.00 62.40 3.00 1.19 0.00 63.20 3.00 1.19 0.00 64.00 3.00 1.19 0.00 64.80 3.00 1.19 0.00 65.60 3.00 1.19 0.00 66.40 3.00 1.19 000 67.20 3.00 1.19 0.00 68.00 3.00 1.119 0.00 68.80 3.00 1.19 0.00 69.60 3.00 1.19 0 00 70.40 3.00 1.19 0 00 71.20 3.00 1.19 0.00 72.00 3.00 1.19 17.00 Phase 1--3-17-11 Type 1124-hr Rainfall=3.00" Prepared by GEORGE F!NCH/BONEY AND ASSC7C. Pane 8 HydroCADO 7.00 slr? 002626 1986-2003 Applied Micrcconip ter 5ys;erns, 3/23/2011 SUbcatlGhrtlent 2S: past Runoff - 60.76 cf-q C 11.96 hrs, Volume, 2.987 a`, Depth= 2.36" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.44 hrs Type II 24-hr Rainfall= 3.00" Area (st1 CN Description 10,803 98 Golden Road 1,220 74 Golden Grass 65,993 98 Products Road 7,318 74 Products Grass 31,058 98 Judd mad " B" 1,002 74 Judd Laves, "B" 437,560 98 Site Irnp 109,379 74 Site Peter 664,333 94 Weighted Average Te Length Slop e Velocity, Capacity Description (mire) (feet) ---(ft/ft) (ftlsec} {cfs) 5.0 Direct Entry, PARKING SubcatGhwient 2S5 post Hydregraph 4 U 3 J a i Type 11 24-hr Runoff Araa?664,333 sf - Runoff Va?u meae 2.987 of Runoff Depth°2.35" Tcf6.0 min Runoff L' z 4 u c, 1U 14 14 Id 1b :'U 24 ?.0 6 30 32 34 ?6 38 40 42 A4 46 48 50 52 54 55 58 6G 62) n4 66 66 7C, r'2 Time (hours) Phase 1--3-17-1'1 Type /l 4-hr Rainfall=3.00" Prepared by GEORGE FINCH/BONEY AND .ASSOC. Page 9 HydroGAD(--D 7.00 sln 002626 (c 1986 -2003 Appiied Microcomputer Systems 3/23/2011 Hycdrograph for SUbcatchment 2S: posh. Time Precia. Excess Runoff (hours) (inches) (inches) (cfs) o.no 0.00 0.00 0.00 0.80 0.02 0.00 0.00 1.60 0.05 0.00 0.00 2.40 0,08 0.00 0.00 3.20 0.11 0.00 0.00 4.00 0.14 0.09 0.03 4.80 0.18 0.00 0.10 5.60 0.22 0.01 0.18 6.40 0.26 0.02 0.27 7.20 0.31 0.04 0.36 8,00 9.36 0.06 0.46 8.80 0.42 0.09 0.71 9.60 0.50 0.14 0.89 10.40 0.60 0.20 1.46 11.20 0.75 0.31 2.85 12.00 1.99 1.39 54.90 12.80 2.28 1.66 3.29 13.60 2.41 1.78 2.05 14.40 2.50 1.87 1.53 15.20 2.58 1-94 1.29 16.00 2.64 2.00 1.04 16.80 2.69 2.05 0.94 17.60 2-74 2.10 0.85 18.40 2.78 214 0.76 '11920 2.82 2. i 8 `4.68 20.00 2.86 221 0.59 20.80 2.89 2.24 0.56 21.60 2 92 2.27 0.55 22.40 29+5 2.30 0.53 23.20 2.97 2.32 0.51 24.00 3.00 2.35 0.49 24.80 3.00 2.35 0.00 25-60 3.00 2.35 0.00 26.40 3.00 2.35 0-00 21.20 3.00 2.35 0.00 28.00 3.00 2.35 0.00 28.80 3.00 2.35 0.00 29.60 3 00 2.35 0.00 30.40 3.00 2.35 0.00 31-20 3.00 235 0.00 32.00 3.00 2.35 0.00 32.80 3.00 2.35 0.00 33.60 3.00 2.35 0.00 34.40 3.00 2.35 0.00 35.20 3.00 2.35 0.00 36.00 3 00 2.35 0.00 361.80 3.00 2.35 0.00 37.60 3.00 2.35 0.00 38.40 3.00 2.35 0,00 39.20 3.00 2.35 0.00 40.00 3.00 2.35 0.00 40.80 3.00 2.;35 0.00 41.60 3.00 2.35 0.00 Time Precio. Excess Runoff (hours) (inches) (inches) (cis) 42.40 3 00 2-35 0.00 43.20 3.00 2.35 0,00 44.00 3.00 2.35 0.00 44.80 3.00 135 0.00 45.60 3.00 2,315 0.00 46.40 3.00 2.35 0.00 47.20 3.00 2.35 0,00 48.00 3.00 2.3? 0 00 48.80 3.00 2.35 0.00 49.60 3.00 2.35 0.00 50.40 3.00 2.35 0.00 51.20 3.00 2.35 0.00 52.00 3.00 2.35 0.00 52.80 3.00 2.35 0.00 53.60 3.00 2.35 0.00 54.40 3.00 2.35 0.00 -5.20 3.00 2.35 0,00 58.00 3.00 2.35 0.00 56.8+ 3.00 2.35 0.00 57.60 3.00 2.35 0.00 58.40 3.00 2.35 0.00 59.20 3.00 2.35 0.00 60.00 3.00 2.35 0.00 60.80 3.00 2.35 0.00 61,60 3.00 2.35 0.00 62.40 3.00 2.35 0.00 63,20 3.00 2.35 0.00 64.00 3.00 2.35 0.00 64.80 3.00 2.35 0.00 65,60 3.00 2,35 0,00 66.40 3.00 2,35 01.00 67.2!3 3.00 2.35 0.00 61.00 3.00 2.35 0.00 66.8+0 3.00 2.35 0.00 639.60 3.00 2.35 0.00 70.40 3.00 2.35 0.00 71.20 3.00 2.35 0.00 72.00 3,00 2.35 0.00 Phase 1--3-17-11 Type /124-hr Rainfall=3.00" Prepared by GEOR"E FINCH/BONEY AIND ASSOC. Page 10 FydraCA,1.R 7.00 sin 002626 O 1986-2003 Applied ?,Aicrocomputer Systems 3/23/2011 Pond 3P: RETENTION POND Inflow Area 15,251 ac, Inflow Depth = 2.35" inflow 60.76 cfs @ 11.96 hrs, Volr11rne= ;2.987 of outflow 26.25 cfs rz 12.06 firs, Volume 2.944 af, Atton= 57°'x, Lag= 6.0 min Primary - 25.90 cis @ 12.06 hrs, Volume= 1.945 of Secondary 0.35 cfs @ 12.06 hrs, Volume= 0.999 of Ro! sting by Star-Ind method, Time Span= 0.00-72.00 firs, dt= 0.04 firs / 3 Peak Efev= 385.08'@ 12.06 firs Surf.Area= 30,017 sf Storage= 57,164 cf Plug-Flow detention time=381.1 min calculated for 2.942 of (9911/0 of inflow) Center-of-Mass det, time= 373.4 rain ( 1,158.5 - 785.1 ) 11 Invert Avail.Storage Storage Description 1 383.00' 118,422 cf CUSt0M Stage Data (Pyramidal) Listed below Elevation Surf'.Area Inc.Store Curn,Store kNet.Aree (feet) (s9-ft) tcubjc-feet) (cubic-feet) s -fi) 383.00 23,712 0 0 23,712 384.00 27,847 25,752 25,752 27,896 385.00 29,846 28,841 54,593 30,008 386.00 31,905 30,870 85,462 32,183 387.00 34,025 32,959 118,422 34,424 Routing Invert Cutlet Crevices i Primary - 380.25' 30.0'° x 100.61' long Culvert RCP, scl.cut end projecting, Ke= 0.500 Outlet Invert= 379.40' S=0.00857 r2= 0.013 Cc= 0.900 2 Secondary 383.00' 4.0" x 100.0' long Culvert FRCP, groove end projecting, Ke= 0.200 Outlet Invert= 381.00' S=0.02007' n=0,013 Cc= 0.900 3 Device 1 384.10' 4.04' x 0.33' Vert. Orifice/Grate x 4.00 C= 0.600 4 Device 1 3134.85' 2.00' x 2.170' Horiz. OrificeiGrate Limited to weir flow C=0.600 5- Secondary 386.65' 15.0' long x 6.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.37 2.51 2.70 2.68 2.68 2.67 2.65 2.65 2.65 2.05 2.66 2.66 2.67 2.69 2.72 2.76 2.83 Primary OutFlow Max=25.58 cfs @ 12.06 lirs HV\l=385.07' (Free; Discharge) "L-1=Culvert (Passes 25.58 cfs of 44.68 cfs potential flow) t?:O Orifice/Grate (Orifice Controls 22.82 cfs @ 4.3 fps) ri fice/Grate (Weir Controls 2.76 cfs O 1.5 fps) Secondary O"tFlow Max=0.35 cfs a. 12.06 firs HVV= 385,177" (Free Discharge) 2=Culvert (Barrel Controls 0.35 cfs G 4.C fps) L-S=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Phase 1--3-17-11 Type /124-hr Rainfall=:3.00" Prepared by GEORGE, FINCH/BONEY AND ASSOC. Page 11 dCO aAD:r? r.UD{n DrJ2526 ! 1?F3U-:?UU3 ?ppGed M?crocom?,uter Sy;erns 3/2312011 Pond 3P: RETENTION POND Hydrograph U Y 65= 50.76 cf7 60 55= dInflovy rre ;?7-15.251 ac So Peak Eev=386.00" 45 Storage=-57,164 cf 3Q ?7.90 c`s ] 25 . 20 s 15 10- 5- 13.35 cfs C) ?•,.-, -- Ir?ow --? Qutflrnv Primary Sccondary u ,. ?Q c.; J,, )" JU G 9U =ice ya 4d 4r, 'JU c,4 5ti aB 67 52 04, 66, 6B 70 72 Time (Pours) Phase 1--3-17-11 Type it 24-hr Ra nfall-3.001" Prepared by GEORGE FINCH/BONEY AND ASSOC. Page 12 HydroCAD 7.00 sin 002626 ; 1986-200.3 f.ppjied Microcomputer 4ystfims _ 3/23/20 11 Hydrergraph for Pond 3P RETENTION POND Time 111190w 5toj'aUe 1DevV itiOn Gutflow PrIlinary Secondary (h)Urs) (cfs) _ cubic-feet) (feet) (cfs) (cfs) (cfs) 0.00 0.00 0 383.00 0.00 0.00 0.00 2.00 0.00 0 383.00 0,00 0.00 0.00 4.00 4,03 15 383.00 0.00 0.00 0.00 6.00 0.22 858 38103 0.00 0.00 0.00 8.00 0.46 3.162 383.12 0.04 0.00 0.04 10.00 1.12 7,824 383.30 10.19 0.010 0.19 "12.00 50.90 54,637 305,00 23.66 23,31 0,35 14.00 1.70 31,604 334.20 2.06 1.70 0.31 1C;.t.70 1„34 30,491 384.10 1.16 0.85 0.31 18.00 0.81 29,997 384.15 0.87 0.56 &31 20.00 0.59 29,581 384.13 0.64 IJ.34 0.30 22.00 0.54 29,400 384.13 0.55 0.24. 0.30 24.00 0.49 29,316 384.12 0.50 0.20 0.30 26.00 0.00 27,082 384.05 0,30 0.00 0.30 28.00 0.00 24,937 383.9; 0.30 0.00 0.30 30,00 0.00 22,825 383,89 0.29 0.00 0.29 32.00 0.00 20,746 383.81 0.29 0.00 0.29 34. DO 0.00 18,700 383,73 0,28 01.00 0.28 36.00 0.00 16,688 383.65 0.28 0.00 0.28 38.00 0.00 14.710 383.57 {7.27 0.00 0.27 40.00 0.00 12,764 383.50 10.27 0.00 0.27 42.00 0.00 10,82; 383.42 0.26 0,00 0.26 44.00 0.00 9,058 383.35 023 0.00 0.23 46.00 0.00 7,566 363.29 0.19 0.00 0.19 48.00 0;00 6,:366 383.25 0.15 0.00 0.15 50.04 4.00 5,433 383.21 0.11 a.00 0,11 52.09 0.00 4,705 383.16 0.09 0.00 0.09 54.00 0.00 4,130 383.16 0.07 0.00 0.07 56.00 0.00 3,669 383.14 0.061 0.00 0.06 58.00 0,00 3,291 333.13 0.05 0.00 0.05 60.00 0.00 2,982 383.12 0.04 0.00 0-04 62.00 0.00 2,721 383.11 0,03 0.00 0.03 64.00 0.00 2,498 383.10 0.03 0.00 0.03 66.00 0.00 2,308 383.09 0.02 0.00 0.02 38.00 0.00 2,146 38108 0.472 10.00 13.02 70.00 0.00 2,007 383.08 0.02 0.00 {1.02 72.G0 0.00 1,884 383.07 0,02 0,00 0.02 Phase 1--3-17-11 Type it 24-hr Rainfa;1=5.38" Prepared by GEORGE FINCHIEONEY r0JD ASSOC. Page 13 HydroCAD- 7.00 sin {02626 9 1986-2003 Applied Microcomputer Systems 3123/2011 Pond 3P; RETENTION POND Inflow Area = 15.251 ac, Inflow Depth = 4.68" Inflow = 115.62 cfs @ 11.95 hrs, Volume= 5.948 of Outflow 51.54 cfs @ 12.05 hrs, VOlunle= 5.257 af, Atten= 55%, Lag= 5.9 rein Primary - 51.14 cfs @ 12.05 hrs, Volume= 4.812 of Secondary 0.40 Gfs @ 12.05 hrs, Volume= 0.444 of Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.04 hrs 13 Peak Eiev= 386.18' @ 12.05 hrs 7urf.Area= 32,290 sf Storage= 91,445 cf Plug-Flow detention time=-105.9 rain calculated for 5.248 of (83% of inflow) Center-of-Mass det. time= 49.3 rain ( 1315.8 - 766.5 ) Invert Avail.Storage Storage Description 1 383.00, 118,422 cf Custom Stage Data (Pyramidal) Listed below Elevation Surf.Area Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (cubic-feet) (cubic-feet) (sq-ft) - - - 383.00 23,712 0 0 23,712 384.00 27,847 25,752 25,752 27,896 385.00 29,346 28,841 54,593 310,003 386.00 31,905 30,870 85,462 32,183 387°00 34,025 32,959 118,422 34,424 #' Routing Invert Outlet Devices -- 1 Primary - 380.25' 301.0" x 100,0' long Calvert RCP, sq.cut end projecting, Ire= 0.500 Outlet invert= 373.40' S= 0.0085'1' n= 0.013 Cc= 0.900 2 Secondary 383.00' 4.0" x 100.0' long Culvert RCP, groove end projecting, Ke= 0.2301 Outlet invert= 381.00' S=0,0200'/' n=0.013 Cc= 0.900 3 Device 1 384.10' 4.00' x 0.33' alert. Orifice/Grate 7f 4.00 C= 0.600 4 Device 1 384.85' 2.00' x 2.00' Fioriz. Orifice/Grate Limited to weir flow C= 0.600 5 Secondary 386.351' 15.0' long x 0.0' breadth Broad-Crested Rectangular Weir !-lead (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.007 2.50 3.00 3.50 4.00 4.50 5,00 5.50 Coef. (English) 2.37 2.51 2.70 2.68 2.68 2.67 2.65 2.65 2.65 2.65 2.66 2.66 2.67 2.69 2.72 2.76 2.83 Primary OutFlow M2x=51.06 cfs @ 12.05 hrs HIN-386.17 (Free Uscharcge) t-1=Culvert (Inlet Controls 51.06 cfs @ 10.4 fps) 3=Orifice/Grate (Passes < 35.04 cfs potential flow) =Orifice{Grate (Passes < 22.10 r_fs potential flow) Secondary OutFlow Max=0.40 cfs @ '12.105 hrs H1N=386.17' (Free Discharge) 2=Culvert (Dar rel Controls 0.40 cfs @ 4.6 fps) .s-Broad-Crest ed Rectangular Weir (Controls 0.00 cfs) Phase 1--3-17-11 Type it 24-hr Rainfall=5.38" Prepared by GEORGE EfNCHIBONEY AND ASSOC. Page 14 H dreCAa,?) 7.00 stn 002626 C.} 1986-2003 P, Hed Microcomputer Systerns 3123/20/1 Pond 3P: RETENTION POND Hydrograph 1 1 1 f 1 1 V y 0 ?C ?fi< cts 1?- ', a ?rufllovv Arra=n 5.251 2C DO. 95 1 Peak Eulev=386.18' ' 90 35Storage=91,445,.,-.f 90 75 70 ;n s ?1:1 fi c,fs i ?u- 4s 4n; 35 30 ,5. 0 U- 0.40 ?f; i r ?C',V - Outflow seconja 3 u ti g 11) 11 12 IJ ''4 1,5 1C, 17 21 2 Time (hours) Phase 1--3-17-11 Type // 24-hr Rainfall=5. 38" Prepared by GEORGE FINCH/BONEY AND ASSOC. Page 15 Hydro: A.DD 7.00 sln 002625 1986-2003 Applied Microcomputer Systems 3/23/2011 Hydrograph for Ford 3Ee RETENTION POND Time Infrow Storage Eievatior, Outflow Primary Secondary (hours) (cfs) (cubic-fee',) (feet) (cfs) (cfs) (cfs) 0.00 0.00 0 383.00 0.00 0.00 0.00 0.80 0.00 0 383.00 0.00 0.00 0.00 1.60 0 00 0 383.00 0,00 0.00 0.00 2.40 0.04 13 383.00 0.00 0.00 0.00 3.2G 0.20 347 383.01 0.00 0 OD 0.0D 4.OQ 0.35 1,119 383.04 0.01 0.00 001 4.880 0,52 2,315 383-09 0.02 0.00 0.02 5.60 0.69 3.932 383.15 0.07 0.00 0.07 E 40 0.86 5,919 383.23 0.13 0.00 0.13 7.20 1.06 8,228 383.32 0.21 0.00 0.21 8.0(C' i.25 10,877 383.42 0.27 0.00 0.27 8.80 1.79 14,417 383.56 0.27 0.00 0.27 9.60 2.12 19,379 383.75 028 0 00 0.28 10.40 3.29 26.15+0 '384.01 0.30 0.00 0.30 , 1.20 6.09 33,885 384.28 4.30 3.99 0.3'1 12 00 96.17 87,395 386.06 50.86 50,46 0aA0 12.80 5.12 41,653 384.55 13.72 13.39 0.33 '13.60 3.79 34,053 384.29 4.51 4.19 0.31 14.40 2.83 32,735 38424 307 2.76 0.31 15.20 2.37 32,184 384.22 2.55 2.24 0.31 16,00 1.92 31,589 384.21 209 178 0.31 16.80 1.73 31,361 384.19 1.81 1.50 0.31 17,60 1.57 31,135 384.19 1.64 1.33 0.31 13.40 1.40 30,918 384.16 1.48 1.17 0.31 "19.20 1.24 30.703 38417 1.32 1.01 0.31 20.00 1.08 30,487 384,16 1.15 0.85 0.31 20.80 1.03 30,359 384.16 1.05 0 75 0.31 21.60 1.00 30,293 384.16 1.02 0.72 0.31 22.450 0.97 30,230 384.16 0.99 0.68 0.31 23.20 0.94 30,169 384.15 0.96 0,65 0.31 24.00 4.90 30,107 384.15 0.92 0,62 0.31 F s i STORIMWTER WNAGEIVIENTPERM,ITAPPLICATION FORM 401 CERTIFICATION APPLICATION FORM LEVEL SPREADER a VEGETATED FILTER STRIP (LS-VFS) SUPPLEMENT This term must be cornp!etely filled oug', printed, irli!ia!_d, "Ind submiited. !. PROJECT INFORMATION Piolect name Generations ll, LLF Sp3co ParaC;IIS Contact rla 1e Don Wiggins Phone number 914.833-1212 Date %13mh 21; 2011 Drainage area miiilber 1 11. DESIGN INFORMATION The purpose of ih . LSAr;=g Buffer Rule: Uifinse F cw - Starrrmateronters f-S-VF from A 8f,1P Type a' VFS ,°doxf d stomiwa'er ;aback (slop,3 < 5`;k) Explanation of any'Othcr' fespor•ses above If Rtormwater Enters the LS-VFS from the Drainage Area !7r4lage. area Impumous surfaoe area Percent impervious iadonal G coefficient Peat: flaw 1[{7[1-1 Lye 1 ff-11hr Stalin Time of rcnCe:ntlatiarl Rainfall intensity, 10-yr storm Peak flow front the 10-y; sIG uj Design .s!olm #17,-7?murrr amount of Flow directed lo €hti LS-VFS Is a flow hTpass systertl going lo be used? Explanat,on of ally 'Otr er'responsesaLuve If Stormwater Enters the LS-VFS from a BMP Type 1-,f BMP Peat: di,-cdar>:ge fi,1m the ID. N.P during the d sicgn storm Peat discharge from Ule BNIP1 during If;o 10-yearsturm h`arimum ca-racity of a 100-foot long L5-Vl^S Peat; flow direued to the LS-VFS 1, a flow bypass svst=. ri going to be esa; F-Wanafion of Lily °Othe!.' rusru,nses above I-S-VFS Design Forebay lzorfac;e aree. De p!Jl o(forl bay at stormwater entry f oird Depth of foreboy at stormwatcr exit point Feel of fevel lip nee &-d per cfa Computed r irunum Length of the lcv_f lip nced•- C:) nr':I eonldlele 1h-S ,,:chcn of the -lain Cb x;r. coT !_le .ius s=rt.on cf h° ,;im. Do nit c;c-i r;ly'e !hi <_ cli. in i .g farm. cC!lir),F!I-: lhi? _,.;Ilrrl I.i 1re i'?r'I'• Ue rn_t c:orr:f-i-A his sc:'icl 1-,i II! Do mot c?.ar?pleto IN- , .%?; n al the • Leer . net cc,mpleia II ;?,ctirn ,I the'cirn 4 the erlT). TICK anr-: cfs u r.-,t cc -f.? hi, lio?i o' U•, f ?mi C e or N1 Du iioi Wet d5tention pond 027 afs 0.4 2 cfs- 0.4 di Y (Y or N) G sq ft V in In 50 ftlcfs it Foorn SVV401 - LS-V1- . 29Nov2010-Rev.8' p-ziGe 1 of 3 Length of level lip pmvidod 40 ft Widtli of VF,, Sig ft- Elev?tit ii ai rd wn, lc base c level I,P 381.00 fsnsI Fleva.`•ic•-i at the end of the VFS [hat is fart!: st W.,tn the LS 31-9.00 fmsl Slope (from Level lip to the end nI he ` I S) 4,00 % 1r-3 Cry draws present in ;he VFS? P. (Y or N)` OK fs Ih :ire a collector Swale ai the end os the VFS? n (Y or N1 Bypass System Design (if applicable) Is a bypass syster€i prov ded? y (Y or N; Is the4an eF!gineered for: -split ing device? Y (Y or N) ;e ?rc,id: plate 1;"er & supporting talcs. D rnenE ons of the chartnc (See diagram below): I'll It B It ft y (flow (k dJi for 1fJ year sm, m) fl. freeboard (during the 10-year ston-n) ft Pea'-, valoeity in the channel ed 1rwLI the 10-y9- stotrr -- fusec Channel lining rriateiial Pick or,e: C?ks the by=rwass d!schaige through a wetland? (Y cr N) Does f1i9 chnnr;el enter She sr, tam at an angle? iY or ".]) F,yplar:,`on of any'Otl per: respx nses above For largo storms a contrl box will uirr;ci lamer storms to a rip-rap a!ssipa!ion FZd W t e , f.co Toald (Vilna tile I i-".1 c(ilia) v i<lirusr? tl?_ t+r-}:.;tt,lin; ' dr--- . -_4 L M o , t ?_.r= Y ® B 4, III. REQUIRED ITEMS CHECKLIST -? ? EDIT Please indicate the page or plan sheei numbers vdiere the suppoiting documcntafion can be found. An incomplete submittal package will resultin a request for additional information. This will delay fina! review and approval of tho project. Initial in the space pmvildad to i idiaale the fcl'.otving dcsign rsquiremet is have been mal• If the applic-grit h?:, designated an acen(, the agent may initial below. If a requirement has not been met, attach justification. Requded Item: Initfais Page or plan sheet number and any notes: Form SW401 - LS-VF - 2M,),201 0 Rev .8 page 2 or 3 Permit No. _ h ° c VIA7fi ?, ST RMWATER MANAGEM.-NT PERMIT APPL OATION FORM - 471 CERTIFICATi N Af'MCATi(1N F0RM 1AJET DETENTION BASIN SUPPLEP1iENT Th;s form mr,cf ba fPed out, prated and ub; nri±+rd. 'he F evLliad floras Cherkif:st (J art !!Q must t print d, filled ov and r•eb n,?ted along with alt of tre rzquir? l ri;lo rr oiio:,. I. PROJECT [hIORIIATION Pr(7jeCt r?arre Len:i??JL'n5 i! Ce,ro!ino, LLG ::pane FaTCe;!, Contact fter5'Gn !tuft UV!(?y1Ti5 F'itonenulriber 51J-U3;ri212 Drainage urea {,umtaar f -..._• CECIG I?FMCr???IOfJ _..... - ? 9i Site Gharac terlstlcs --_ Drainage Ei-e„ 664,333 ft' Irrpenrious area, post-daveioprinval 51d, 1y f -o !rllpeNlous 82:10 q? Design rarf-311 depth 1.0 in Storage Volume: Non-SA Waters M ninwrll volu ie required Voluma provided 27,078 ft' 26,631 its nsuflicicnt required vo[unie. Storage Volume. SA Waters 1S' funoft Volume Pre-dcvn!c4iment ,-yT, 2A4,, ninofF Pest Jeveioprnent 1-yr, 24 hr runoff Mrnmum velun e required Volume provided Peak Flow Calculations 1:, the pTerpn^i control of tr;c 1yr Ahrstorrn peok fIL"N required? 1-y€, 24-hr rainfall depth R3Gonol C, pre-develcoment Rational i., pos'-develops erl. Rainfail intersty 1-yr, 24-hr storm Prc__ve!rw;dmert I-yr, 24-1hr pea:, logy Poskde.vebpment l-yr. 24-hr peak (fova PrMlos' 1-yr. 24-hr peak flow c?ntrol Elevations Temporary ptxji eievaiion Peflilanert paal ELvaticn SHPT I e!c_-,Aon (approx at the pemn, ",21 elevaton) iota of 104 vege:nle'd shelf elevation Bottom of 1Oft veget.aed shell 3!evabol sc,611rnt deanout, fop e'.evnlion Ihottom of po^d} 6edirrert clearfoui, ha'!cm •elevaVan Sediment storage provided, is the m addilinnal vclurne sired h:we the sla;e-n3q,1l1edlernp. Pool? ElewaFori of Vie top ci to oddi c of vci?lme lil ft? ft3 W ft' Y (v ar N) (uniL'et;;j {unilies:,1 Mir 30.05 fi'lsec 60.75 1 30.71 ft'hec 3E3,71 frssl 333.00 fniSl AVG=82.114 imsl 383.50 frnsl 3812.50 furs[ 378.00 frnsl 06 [ms[ 1.00 ft Y (Y OF N) OX, volume Provided i; equal to of in exr?:-, of volume required. 283.7 fins! OK Form 64":40 1 Wet D'• t._ hFl 13aim-Rov 3-917109 Paris 1. & It. D•islgd Sumpinry, Page 1 a12 Perr!it f?10. (!n Le pmn -ded by DW,)).. It. DESIGN INFOP,PA,4TMl -- --- -- - - - - - - - Sur;;iee Areas V Area, l mpcr'-aty pool 26,603 ft' Area REQUIRED, permanent pool 23,252 f? SAfDA atio 3.50 (imil'er: ) Area :PROVIDED, peritlanent pool, Ar-I, ,-j 23,712 tt 7K Area, bottom of 1Oil vegc,?ted shelf, A,.,, 20,731 ft' Area, sc?imem ci- ..out, [ca elevation 'bottom of Pond), H.,-, „- , ar " r ;4,2 05 itz Volumes volume. lemporrry pool h' Volume, permanent pool, V___ ft' Volume, fore-hay (scam of forebays if mcro !hail an(, forebny) It' Forebay % of permanent.muoi volume SAJDA Table Da'.a Design TSS removal 90 °•S Coastal SAIDA T Jie used? n (Y or N) MountairvFied'nen! S IDA. f able U ed? Y "Y or N) SNDA ratio 3.5C (unil!ess) Avera;;a dept) (used in SNDA !aisle): Calcula5on option used'? (See Figure 10-25) R (Y of N) Volume, permanent pool„ Vp- rya fis Arca provides:, pern_rnnt pxf, A,. L 23,712 it Average dc?pth csibjlated ft Average depth Lire; in SAJDA, d,,,, (mound to ner:rest 0.5ft) ft Gal='-ation cpticn 2 used? (See Figure 10-.2b) y (Y or N) . Area provider,pem-xientpord,h;,,;,, 23,7,2 it1 Area b0lcm of 10it vegi-o3lad shelf, A,,,, ft 20, 7 31 Area, Sediment cfe?aoUt, le; elevation (bottom of pond), A,,,, p,.;{ 14.245 fC 'DepCT (dis6anoo blwi batiom of 10ff shelf ar,d lop of sed,ment) 4.50 if Average da tfi Qa'c0aled 4.28 it OK Avara,,a depJi u?cd in GNDA, d,,., (Pound to nearestO.5ft) .1,5 it OK Dravodawn Calculations Dra,wdown iucugh affce? DGWE"er of criflC' (if crcule!) Area of orifice (iJ-non•circufar) Coeffident of discharge (C j [?r'ving head (H.) Dmwdovorn Ituough weir? Weir t Te Coof iclurll of discharge (C,j Lengiia of w&T (L) GrMT19 head (H) Pre dr:delmiriem 1-yr, 24-hr peak flaw Post-development I-yr, 24-hr peak. flow Storage volume di5ct:erge rate (through discharge core: or weir) Storage volume drowdown 5rne Additional In€ornation Vegeta-ted side slopes Vegeta :;d sheaf slope Vcge ated shell 'm"HI Length of Ilowpah to sv!dth ratio Lengu} to warm ral;o Tz-ash racy (cr overflow '4 office? Ere=boar provdea ?Vegetated filter provided? Reza rded drainage easement provided'; Cap:irs all runoff at diimak? build-cuP D a it nieahanism `or mainlenanrp or emergenucs is: y 1, `or N) 4.00 in Inry 0.60 0.42 ft (Y ci N) ;uni',.Vss) (tinNess) it fl 30-05 Wisoj3 60 75 ft'?see 0-35 W [Sec ph•, draws down in 2-' days;. 3.50 days 3 f OK 10 :1 OK 10.0 f1 0K 2 :1 lnsufJcienl flow paL`t towidth ri'io. Must rtct ?? r.r,C;; ,t,it : %0,I 0K y' (Y o- N) OK y ft pK Y (Y or N) OK Y (Y cr N) OK Y (Y cr N) 0K rump F?ann 54(`1=01-VI.,,t Detention.. aa5krRev:b-9t17109 xt-: 1 5 It Di?.s(rdr Summary, Page 2 c? 2 STORMATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM LEVEL SPREADER e VEGETATED FILTER STRIP (LS.VFS) SUPPLEMENT Tlris form must be compfet0y flikd ottt, printed, initia,ed, and subrrti,'Led. 1, PROJECT INFOPMATION rot ct Hama --. -J Generations II, LLF Space Parcels Contact nam Q;;n L?Iggin Phone number ? - 91.?53-212 Date March 21, 201-1 IJroinage area number ; Ii. I]ESIGN INFORMATION The pu.Tmose cf the LS-VFS Butfer Rui•3: Diffuse F!co. - 5'aime:alererltets L5-VF5 from A BMP Type of VFS V`brood ,d siormwater setback (slope c 5%) E?planalion of any 'Other re=ponses abode It Storrnwater Enters the LS-VFS from the Drainage Area D-ainage area Impervious surface a-ea Percent Impeivious Rational C :;acfiicienl Peak flow from the 1 itirhr storm Time of concenlralvi Rainfall intensity, 10-yr storm Peak flood from the 10-yr storm Design semi Maximum amount of flow d i-ccteu to the LS 'VFS Is a I1ow bypass sysie:n going to Le usCd`? fe f? cfs min -f i Vhr cfs Pfrk nna: c _trr;r- ie,i aimc`t f n. Dry Oct c mplofa Ihi sec'scn of thr tor. -. L'o . cor,;:I !e hir s .,. ;;u ;.f th? fcrrn 110 r19i f:6f`•17!t.ie this 7 in ct th- fond„ ?? rot cr:, t = ?nl? . ;Lr?n tr,?" f,rm. rcmc'aie tiffs <•?(i??-I of It a 6:.'rn. Explanation of any 'Otf ir' resncnscs above if Stsrmwater Enters the LS-VFS from a BMP TypE of 1-MP Peak dscnorge IMITr the BhdP "u?ng the design storm Peak dsch charge frcm the BMP cltuing bio 10-year storm Maximum capacity of a 100-foot !ang L5-VF3 Peak flow d!rected to the LS-VFS Is a :row bypass system going to be used? Ez!.p2 iia!ian cat ar} Uth i' Icspfns N zhayE3 LS-VFS Design Fcr?.W surface area Depth of forebav at sloninvater enty point Depth of frrrs)ay at slcim-water exit point Feet of level lip nee fcd par cfs Computed minim;irn IergLh of the level lip needed GIS U o iC':OT' s't!i5 G[II;I cif;CIF CT, (Y or N)' D n i nor -hi .riser: c•f `r•? fcrm Wet detenfirn pond 0.27 cfs 0.4 ----cfs 2 cfs O d cfs y (Y or h1 0 sq'fi in in 50 facts R Form SVJ•101 LS-V,S 49rgov'=,010 ReV B - page 1 of 3 LenU!i' of retie! lip pmvidad 4ViC'? rf VFS Fievalion at x?onslc base of level lip Elevallon at fi!e end of the VFS thal is la ;f1:::=? from Ili LS Slope (from level lip to tilu er,d of the VFS) Are any craws pra,en,t in ine VFS? Is there a crArectcr,:gale at [tie end of the VFS'? Bypass System Design (if applicable) Is a bypass system provide:'? Is Ifiere an engineered fl:,w Splitting d-evice? Dimensions o; the channel (see d0i.: atn bet; w): M. H W y (flow d?s1f1 for 10 year storm) trz-board (during the 10-year S1,0M11 Peak velociry in ',ha channel during the 10-yr storm Channel iir:!ng rraieriai Dons the hypass dscha-ra through a weJand? Toes Lne channel enlei lee stream at an angle? ExplanaUon of any'OLher' emcnses above 40 ft 5) ft ;181.00 fmsl ? 3i9.flG fmsl 1 G•'J % n (Y or 14) n (Y or N) M (V or N) (Y f). N) ?a c : F..DCI L I Ij _ _.! II' ! d rt S IrF?'_ IIII w lw ? ft- _ {t ft It Fick c^e: (Y or N) (YnrN) For `arcer strmlS a cenlrcl box will cirecl larger stomis i0 a rip rap dissiPatlon pad ,1: fze°?haa R' fL}tt.al7 fAk', 1t} y:' 3ic77ii}?. r I i'tiellli13; ttl kll-H'I'S omil ' 4 I # B b llll. REQUIRED ITEWIS CHECKLIST EDIT Please indicate the page orplan shed n!imbers,,vhere the ssppo.Wrig documentation call he found. An incomplete 5u6mitLni package will msultln a request for addifionai information. This will delay final review and approval of the pfoject, Inifiai in the space provided to inlfcate the following design requirements have been met, If the appkant has designaled'an agent. Ilse ag-nt may initial below; If a requirement has, notbeen met, attach jusfl cation. Requried Item: Initials Page or plan sheet number and any notes: F ai ;W41< 11 L S-VFS - 29W4010 - Rev: t3 aaye 2 of 3 Permit No. (:obepro %;d-e'by D :. ) r ;^; n -r STORMIXATER MANAGEMENT PERI`,VT APPLICA T M FORM 401 ;^,ERT IFICATION APPLICATI;3N FORM VVET DETENTION BASIN SUPPLEMENT Ths ro;mmust bo f;!!zd out, pl-,-Me f ar7dsubrnrt[ed- 7ie kieQ[1i L>e! hems Ghoc4:4st (Pa t•'1) must be fu.rn!ed, riled oivf and subm;tleyj a.runq w;GS a.Y of f1;e r sired inton laftutf: ,Ie P CT?FJFO9F2149ATIC3N ---- -- Project n-- me -^ - Genes bans II Caz!ina, ELC Space °arcz!ls - - Cortacl p : r- on m horvo b D r1Y;ugi nuin er X 19-033-7212 Data rztr oft Drain39e area ninbor 1 IL DESIGN INFORN Ti0ff ? -- - Site Characteristics --- ?`- --- - -? E,rain--ge area 664 333 f[` IMPKVious ?rca, pQS1-deveicorns:lt 545,414 jt IlI; impervious 82.0 Decign rainfall d_-plh _ r „ Storage Volume: Ion-SA Watars Mnimum volume required Vo'unte pn:vidEd 27,878 f+.' 2a,G3' fi' Insutfciert requirtid volume. Storage Volume: SA Waters 1.5" runoff volume Pfe-dcou lopment 1-yr. 24 hr runoff Post-deve!apment 1-yr, 24-hr runoff Minimum vnime required Volume provid--d Peak Flow Calculations Is the preJpcst wntrel of !rte 1yr 24hr Storrs peakfiow rttured? t-yr, 24-hr rainfall depth Reficnal C, pre•dcvelepment R3tionaf C, post-devafCipment' Rainfall in:crisiiy 1-yr. 24-hr stare Pre-devel. rnen[ 7-yr, 24-hr peak flow Po-sl-deve!opmenl 1-yr, 24,nr peek hors Pfa,,Post 1-yr, 24-hr peak flow, conifof Efcvafion5 femportry pool e'evatcrr Perntarent poc•'. elevation SNNlT el--watcn (approx. a( the prim, pool Efwa6crlj 0p of lUit vegetated shelf Elevoliun Pollan of 10ft vegetated shaif e!EVation Se-dimEnf cis3;toul, top elevation ybnttoin cf pord} 8? iiment cieancut, boners elsva;ion Sediment s.'.oraga provides Is ftlere addi' on31 VO!1!.r1E Stored abova t'te siate r-?yu!ICd ternp. PLrG;9 Elevation of the iqp of the edtionul volume Furij SVJ401-1A,1=..i 0ctantian ?sirrRev.1-3.?1'rr0y fi3 ff3 Y (Y or ff; 3.0 in (unipe: ) (unites } nrr:r 30 05 f11lser, 60.76 it'Iser, :1x73.71 fnW 383.00 frrsi AVG=82-84 frnsl 383.50 fmsl 382.53 f;r„1 -+; 8.00 fmsl 377.00 i nsI 1.DG if OK,,Vnfunto provided iS eq;ral to Or fil eax ;e of Volurne roq-.tired. Y (Y or Nil VI-3.7 tmst OK Parts f. & 11. Ussfgn Surnmzry, P;;gn 1 of 2 Permit No. Ii'n bI, rr., der, by D;HJJ:. fl. QES6Gfid fNF©RhiATtClN ? -_ - -- ..` _ -----? urface Areas - - i Area, temporary pool 26,603 Its Area REQIUIRED, permanent pool 23,252 it` SNDA rat? 3.50 (uni"ess} Area PROVIDED, pen7,?eaenl pool, A? T-A 23,712 f? OK Asia, boilom of 10ftvegefaled :heft, A...,j?,•r 20,731 ` Area, sediment aro.;t, to} elevation (boitcm of pand), Ac?,P-w 14,205 Volumes Volume, temporary pool fij Volume, pemanent pool, Vr.,-„ - ttD' Volume, torubay (si:rn of fcrebays if rncre tf-. !} ono forebay) _ i Forebay % of perrar,ent pool vc•!ume SAJDA Table Data 1x iqo TSS rernuval c0 e:o Guastel SAIDA Table Used? n (Y or N) f+1CLr}!HIr1?lelflFlont SNCA Tab13 U E? y C or N) SAIDA rafio 150 {u!ides;) Average depth (uswi in SAJ'DA table)- Cs!culadon opdon 1 used e (See Figure 10-2b) n (Y C., N) Volume, penranenf pool. Vrn.-P11j If, Area provided, pernanent pool, Ar"m J- 23,712 ft? Average depdi ai'culated Averse deptLn used in SA1D.A, d,„ (RaLlnd fo nearest 0 17-1Z) 0 Calc.llabon optk:n 2 L bed? ($ee Figure 10-2h) y ?f ar Pjj Area provide-J, pernanenf pool, A',,., r,.i 22,712 ,t_ Area, bot!om of 10ft Vegetated she!f. A,. 20,T31 p' Ai ea, sediment cieanout. fcp e!ev?tion (bo:lom of pond), Ar,! .md 14,205 ff2 Mepll;` (d!stEnce b'rv bottom of 10tH sElelf and fop of sednnont) 4.50 ff Average de-p'hcalc,Iaterf 4,28 it OK Average d.pdi used in S UA, d,., (Round lia rlaw:st0-5G) 45 is OK Drawdovvn Calculafidns Or wdown d,rcu; h ui:Fa;e? (Y or N) Diem ter of arifici, (if circular) 4.00 in Area of oiiflce (If-llOn-wcular} 2 in Ce,F.I.ent of discharge (Cs,) 0.60 (unifi ss) Dimino head (H,,) 042 ft tDrawdown 1?raugh vieis? (Y cr N) 1N'eir type {unitl GocfGW'an;of discharge (Dw) {unlfle } L ---ngih of wcir (L) it Glwng head (H) ft to dev:acpn rii 1-pr, 24-hr pe"{ fiow -- 30.05 f! !:>ec Pcsttevelapmen'; 1-yr, 24-! r peak flow' 80 76 ft''sec Slorage volume discharge mte (rhtcugh discharge orifice or weir) 0.35 f!'lcec Storage Voluniei uwds'rm';irne 3.r. .:3 Jays Adrf;t'onaf Information Vegetated side slop, 3 :1 Vogetafed shelf slope 10 :1 Vegelalcd shelf width 10.0 tl Lengfh of flawpadi to wid11. ;atiq ? 1 Lengdl to vdiddt rado 2.0 :1 Trash racr;'or overlicw .v, orifice? - y (Y or N} Fn:ctoard provided y fl V--gelbted filter provi:'.ad? V (y or Id; RercFdl d d!:ll!le< e Ea ement n'ovided,/ y {Y or N} Gepures all r!noff at L'kra'e build -cut? y (Y cr Nj :7 rain rrechanimi for maiptenmua or emeigenD?.e-i -5 Pump Form SViIQp - Ve' ?eLaetiun Ba5ic-Rav.&-911710,1 OK, dravis down in 2-5 days - OK OK OK insutfir"-nt low pads width ralic- Musf nct airorf circuit pond. OK OK OK OK OK OK P;ir s J. & rl. Dosign Summary. Pace 2 of 2 r,; r, rco oru z.a ern ?., 'ova. %^?no.r'? tt.?'oi?.ndni rua? i t } yl I '.. uaT.,, ?7;-rv:.r szL , tr,c'[ra I?pl It '' an i.T lirw:? s?aul ecz ?J.t?E?'J "PYIJ?3'4b°?C7J II f?G?!1.'9'c'?:J I Irtir, 'Y'd 'n"'3.L`1L703g4' .7 23030 I 0 ii 'PEA2?t y ?f 4 ,p am. ERR e i d, p?a? f r r} i2? ?e7S+? 3!MR G ? NO 1 F T?e ?f5 '???L C F ?! tsa" v 3p a y 7 fc fa rx IPYt3S" ?,b ?pL ? MR, f? ?L i ?????;? !i 3 ?.5 ` ??F?ggga h?viE? iy?$ ?xf ?? m7y?s s P ?;p@?? q Fy ? 3 ?i ?L n G d ?? ?i 7 1 x-fk hill aONI?i ?R M, M i'?aIpfr ?k` a` S ey? ?jg??y 99 F54i? ?pipS 9 e?'S?'?? ? hey ?6 9° Fe ?5a d a g y 80 S i ° ? ?t a? ? P;?fl ? 9 t ??a '9 '?? E? f 3%5 9Ep i?a Y 2 ?Ri ll I?'??lz ?'AaE? ear: n r F,, SS Illl? ;u. ° 'i U?f ALL' C 10) J Sr ? ? ` t1G i ti 5 }< ?I 1 f k 77, PI I Yr I ,.'j . ? I - I I at'-'? I11 p ` Ic&gs 9 ?I i r I ? ? ? I II i ?xI + ? - ?v , i g t II I II r 13 X7 !r I t , _u ? ?._ _ - 1??? ???3 ???. -? ._ f ?? ?I i 1, i I ykl #? _ y I ,. ? 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Jc ?°R-F3 r 1 4 G Il a n 11? 9 c'`7 ? Ip ? t7 r? I 1 aE ° CSEQE a x13V !.i ? 'n ? ?c ar '! r i_ Illy" Ta ?5. _019=0 CFG a ?.1 :,?tlo:3. 1 - f o t 2? ? I r f p? l i w ! c,7. e n? 1? 11 -OW, ^Ll7 l??d' ??E o W? Fri cl _cd.OE rR? t+ f.JCtiL o -111 r1 i fi I 'rl ? r. - ? op el , Ir II ?? ?I lyc ? P. U9w E 4.y .? = ?r,y t J c.! ti ??.?5 Q' LV EG ? G7 1i Y ".I i r 5 hill 1, cab WIN 1 ,r 1 Y ?. t " a Q L1.:9i,? ?I - ,lbu t? J? r?r' t? ? 13 L 1 ui > ' ?dL9 ?} l I i.a 4 L q ?' FI '? ? r ?f ?cc p ?f5_ml r.l^`??? .. t ° Ff ? ? ?4°?I N ri , t` I 1? c yy ry r,; w ?J x m 40 - --`? dlt ? ?? ? S??tr e 1 F, ?? ST ti ?+ ddd?i' ?? I;aF b'Pt- q r?3ii?"3's Slit iA £ FS ' WN O 1????? §§ ii }] r -? Ya ?? tl ? ` LJ V y? >ti `t - 1 ll '. 1 ?f . 1? tll?l'1° `IS,1R a t ?i I!? 'l.V 0 FYI '? t G'?i a a`lf ro .y??;(t I rye I I. , r ? rl C ',.1Q33 ski ( I I{+{+Fy... , a} r, 9 9 IyY 4Py ss yrj?? 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T'l:xl,7i] i.IFilk it^! 3 ?,?, -.'r%nvo 1 (`,CI1V2C-?8J ' yl R 'EM.Vn0$;SV a a, TROP/F3?4Td 2M02D k X? ? e @ $162 ? ? H io I ?'I I ' t LI' l10 n ?U. _? H. i ( { y +rl . r w Qj- ?z ?f 1i I YR?R .F. v L F I7 Mlk d ?I ?? 3 i c tr,? Eyyq PNI I?K L?R e - I III IC Ir I€ I 936 1f '? g ?l I- ?:'? r I, EJ I J L 4P,J ? Ir `y?r? ?' `VI ? ?Fl ? ? p ?I, !.Ii g ? I ? ¢ ?cIYL9:a 1u .ji G .t? ?,? 1 r. IL.?I ?? I?h qcE?? ° Lp d`ep 53 d al{ i ?jr _? ??CI( III ,? 1 r' ?.. I - ?b 1ilflf I I b, (4i s? ? ? JV ?. I I !?, I M ? pS/@Ew?w f Ir ? ? ? I?r ?4:?1 s C ( 1 ? ?Yhs?"PE : sdH [!A r 4 u ? ( i?a ? d' . I I ? .?q I _id I°4?S,f{ an-(3 ( [ a? ?eP? ? '?? ktx ? ?? ? ?1 _I ?c ? ti 77 . ? a? .h R 9 r_n ? t 1 v ?:.:I., 11;:I.'_''i'.c: U °.-IL':)'-? w-.;vut? ? ?-l?b?-? IG?s_.-?-?..?? . • .x.:+v .. _w: 3'.w'.a.¢am-:.,:'s,x?n-sltl Permi? Number. _ itr he proi,ir,m ' bi, D) 'OI Dminag'e Area NLMIber; Filter Strip, Restored Riparian Buffer and Level Spreader Operation and Maintenance Agreement I SvI-Il I eep a maul -itunance record on this BVII P. This maintenomcc retard [4'1:1 he kept III a log in a knot, ii set location. Any deficient SIAP elen-tertts noted uZ the iitpection tiwili be correcLed, repau-ed or repaliced imrr7edi: telti?. Ttrese, deficiencies can affect t1ie irate( rite,, of structures, s«ieh, of the public, xid the removal ei f iciencv of the MvIF', Import Int maintenwice procedures-. - N-Lmediately? after t1le filter StTZp iS E Stahl]S1iCCI, «IJX7 newly rrlr_il;ted vegetaft)n ?vill be watered hvice -tveekly i# needed until the plants becDme established (coma-iotly six weeks), Oj-Lce a year, the filler strip cvIi' be reseeded to maintain a dense groivth of v&-Tetatlon, S ta bie groundcover 4'VL1 be InelCltdHI III th drailiia ge area to reduce the '?edimu'nt load to the v. getah.on. - Two to three times year, grass fi!teistrips tin-i11 be rnoived and the clippings harvested to pror ote Lii, groxvth of thick vegetcuicm witl-i opf murn pollutant r€!rnoval eff limey. Turf Bass should raot bo cut shorter thin 3 to `; inches and maY be allovved to groCv as tall as I? Inches 1.1t'p_' cli71iz oii aesthetic requLir_'IIZt=_nl_S (-NIFC,1993). Forested filter stria s d-, not require this hype of maintenance. (--)rice a vea.r, the sail will be acrated if n cersar:T. -mince a y-ear, sail pIq he tested, maid lime Will be added if ne.cessar?T. ,Vtc.r the filter strip is established, it h irlspc,.ctedquarterly and within 24 hours after ever,- storm event greater than 1.0 inch (or 1.5 inches if igi a Crustal 4`ouirty). Rccords of operation and mahritenance s%,ffl b(c kept in a knov,,i, st,t location and v ill he available upon request. I11spection activities shall be performed as follows. Ai-,Y problems Uhat are found shall be repaired irnn-iediate.l?,. MP element: Potential protilena; Hmo v I Svil - I remediate the pr€ blem- The entire filter sh Trash 'debris is present, n ?.emove the trash/ clebris. System The flow splitter device The flo%% splitter device, is Unclotr the. conveyance and dispose (ii' applicable) c1crR ed, I of anv Sediment off-sit•= i'lie, flow splitter device is darrraged. tiliikc- alit/ necessary repairs or replace if damage is too large for rt ?ail•. Farm S%%" U::di_il-1-cN, l Spreader, 1.ii1er strip, Re°vtored Riparian Buffer O&M R(?V.3 Page i of i3i11P element: j ,Fcatential problem: _ ffo-v% >I will remediate th, robierrr 'The shale and the level Into swale is clogged sviLl i?eirsisvr? the sediment and eiispiisc? lip sect menL. of it off-site.. The Ow d lip is ciacked, -- Repair or replace lip. settled, Undercut, eroded of t otheravise LdanT There is erosion arouvid the P.egrade the soil to create a l;rcrni end of the level spreader that that is higher than he level lip, and shows shunuvater has then plant a giound cover and bypassed if. water until it is eslobhshc°d. Provide lime and a oue-time fertilizer _ _ apNcation, 'T'rees or shrubs have licgurt Renown the to grow on d,e ssvale: or just _ Fltiw slye of the level lip. The bypass channel Areas of bare soil and/or R cgmde the soil it nmessaarv ts> erosrve ?ufhes have formekk« remove the Lilly, and then. _eestablish !)roper erosic'm control. Turf reinforcement iw Studv Elie site to seo if a larger damaged or ripap is rolling [,ypass channel is needed (enlarge if do"whill. necessdary), sifter this, reestablish die erosion control material. The filter Strip (.rnass Is too short or kin Ong ? Ails r wn grass at a height of a ll aIL)EAa ilc). ippwoxn2iat IV !inks- to six inches. ,Nreas of bare SOIL and/or al egradc :he soil if necessarto arosive goMe.s have fornied. Ie,, n o v e iIie gully, and the.n?pIanta ground cu%air and water until it is est;akiLished, provide We and a mie-lime for Li e ?plicer4?iern. Sewment is building tip on Remove the sedinionL iind ffie filter s;trih. restaeiliae Elie Soil XviLk vegetation if necessary. Provide lime and a one time fertilize Plants are desiccated. ProWide addi el,al irrigation and ferhli7.er as needed. PUnN axe dead, discaised or Determine the source of the. dying. Problem: stills, hydrology, disease, etc. Remedy the problem and replace plans. Provide a one-Einie fertiliser appficaitimi. Nuisance vegetation i.s Remove vegetation by hand if cho:ki_iig taut desirables species. possilae. If peslicide is used, do not allow it io get into Else receiving a'va_ter. 'fl'ee receiving water Erosion or either signs of ? contact the 1\`C= Division CA Watei damage have occurwd.alt the Qtialfl-y local Regional Office, or 01e` outlet. l 401 Over.s_ivk Unit at 919-733-1786 . l'rn,ii 11?t if)i?l.evc[:5nrearc(cr. fillea' Strip. Restofed Ripiirian Buf1'er(_),?L1.1-Rev.3 Page p PCM111 NLlml7et'- ;(1o bc; r,wrd d fn Di;'U? I adnotiwled-c and agrec by rrly i-t-m ature bel«-w that T ami responsible For the pet fon-li'mcc ol'tlic 1-naintenance procedures lsstcd above. '_ Luuce to notify Mk"O ofally problenis vvitll the systrclll or prior to ally chan-(2s to the svst.em of responsible partyI't'ojecl H(7111c': Gencratlon II Com,nerclal ('emer. Y"t1quay-\,'arina, NC BiAl' draiwwe area ?1:llnhe":_Eastern level SDrcader and IJIILei Strip print "amc: Jull>_ Zalkind Tie,e:N1111 iaCcr r ?tdres:;;??31 N, W, Nor,,vood Streelw. Arlin,fton. VA 22' Phonc: 70 5?=-A 0 5iL7na 77 Date: [tote: The legally responsible party should not be U 110l1e0 Hers 8 ;,0Ci lriorl unless more than 5011.:j of the ioiti have been sold ;,nd a re° i'dcnt of the subdivkion has bc;cn nanled the president, ?.?2 `•' f a Notary Public for the State of lr !c ;Ins; ?4 County or /IteI-1" ;? J clo hereby cert-,, th t ,7l Gl 4- / I.- personally appeared before me this c-2lt ? day of ?Y)/l11 "? .. ' a? {l an-i acicatowiedge the duic execution of the fogy ,oln,o '-filter strip, riparian buffer. al d"or level spreader maintenance, rcquirements. It %'1'';tnes nay' htmd alld official sell, 04t4v, A AAouggeI# Sol ®o A rt % `rpm ?a5a,a ??a %I'°,iM155±Oh' x° a ° "20,'202 0 SEAL Nlv Commission cxtlll'es t nn71 s1?'L! JO i -Lcv< ] tihrc;?der. Fit r strip Rec;torcd Rimsrian Buffer' 0 IM-Rev.3 Pa;,e 3 il?? s