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HomeMy WebLinkAbout20072235 Ver 1_Site Plan_20071227ti 1 ~ r - f - - I - u I I ~I I I { t _ _ - I' S~ ICI 1 ~ ~ b - J ~ I I ~ I I I II I y I I ~ f I q r i ~ i I I 1 ~ \ I y F/~ ~r'r ~f,R. ~J•e..-_-. / }f'• 3~. _ ~ ~ ail ~ ! ~ ` _ I i f `N., ~J ~ frt r7~-w `i- ~ r r' r~ o. ' 7T3 ~ J ~ ~ r ~ ~ ~ ~ ,y _ #2 1 l t ~~i a~ ~ I - t' 1+ r+ ~ ~ ~ ; - i i ,~1,~~ - - - _ ; ~ rJ~ f ~ ~ ~ ` ! ~ S, ~ ! ti ~ / /i If 1 ~ I - ter` f ,/5` I I 1 j ~ _ti J `ti r r . Y F j ` _ I ~ v..J I j t p~~.; w~ J gp / s ' i 'a ~ DA 31:67ac z'` ~ - Lf O ~ ~ tt r % - I f' ti ~ Ir'' r f (rf( f - - . ~ ~ ~ f ^.r~ ~ ~ #11 ' - - M1 ~f~, 4~ ~ ~ M ~ ~ I, r~ ' ~ BMP #4 ~ 1~ ~o f 1 fi .A ,f I. ~ ~ • sk, J - r ~Q t f ~ V` BMP #11 I it DA=1`4:72ac } of ~ t. B M P~#5 _BMP:#5 #5 DA=6.69ac ,..BMP #~10 (B.R:) DA=11.96ac ~ - DA=17:82a 1A=17:82ac ~ ~ I ~ BMP #8 ,f ff ~I, _ f u I BMP#7 s - DA=7:98ac r~{,C ,r B M P'#6~ ~ l{+ ~I 35ac I i ~ - i I~ ~ ~ + i - - #6 ~ , •*v F ~._-°'ti_ ' l I' ' v- ~ ~'i - ~ ~i t ~ ~ I ~ c _ s 1 BMA#1 BMP #12~t #12 #12 ~ DA 3 49ac - 'I ~ DA=21.23ac l l . t ~ r 1 i/ ~r ~ ~ ~ ~ u ~ J 't ' + Wet Detention Basin and Constructed Wetland 51ze Requirements ~ r, ' f WaterQuallty ~ i ~ r,,,,r ti ~ ~ ~ Drainage Area Estimated Surface Area Volume Req'd ([u. "s7~ ~ ! ' BMF Name (acres) Impervlo us for DA Req'd {ac) ft) ,p V ~ ~ '4 BMPz zo z 65 0.83 38,ozz '1`C BMP3 19.19 70 0.85 38,831 f I'•;1 r 1 \yS L; ti~ ~I• ail t~ 6hA F' ~ j R~~ B; ii y+~ y ~ F,lU ~ BMP #14 J -~~~r----~_ f ' ~MP6 ; 61 7~ !1 z~3 'I BMP7 7.98 75 0.38 17~z75 b BMP8 1757 45 0.5o z3~145 BMP #13 #13 4 X13 d ~ #14 D 1 a , ~ ,t`~e, BMP #16 ~ BMP9(eio-Ret.l 6.69 5 ozo 8,8x3 M ^5. l~AV r' _ . BMP1oiEio-Ret.l 11.96 5 035 15,399 DA={11.U5ac ,1~, DA=20 8~8ac #17 - - - - 6AM1P11 ly 7z q5 o Gz 19,391 ~ ~ / \ BMPlz 2123 0.61 z7~966 BMP 13 11.54 55 o qo 18, Gbz ~ ~ ~ _ ~ BMP14 9.15 55 o3z 14,638 ~ ~v !f 1 ~ - - BftflP15 3.88 55 0.1 6,zo7 ; t ~ nom. BMP #17 - - I ~ BMP 16 11.57 55 o Go 18,510 r} I l , DA=9.53ac BMP17 9S3 55 x,33 1~,?q6 ~ ~ ~ . J _ _ BMP 16 697 55 ozp 11,151 i j r ~ J ~ ~ e - _ - _ j ~ f~ } _ BMPs. A.dd itional storage above the WQ Volume will be ~ , ~ i required. I ii I ' r""'.-. !r' - `1 ~ BMP #15 1 I~ I + - _ / 1 DA=3:88ac ~i _ ~ Ii ~ P r { JI f' ;r i i I - 1 ~ r 'I ~ a _ h I ~ ~ l r i i 1 , - ~ - I ~ I ± ~ i~ I I - ~ _ i ~ } - - _ BMP #18 i ~ ~ I . ~ I ~ ~ ~ I'' ~ I _ ,I ~ ~ I 1+ ~ ~ •,i ~ I i r; i y _ _ I _ - - `-"DA ~ 6:97ac ~ ' ~ _ - #18 - - ~ ~ I ~ ~ J } i I r I s s I I_, ' ~ i' f~ 1 f r- lip ~ _ f; I r i I ~ ~ - - ~ ~ ~ l ~ 1~ i ~l f I I ~ 'I -x ~ I I ~ I' ~ ~ i ~ ~I' ,l ~ ~ ~ _ + r} I - ` - r- ~ /+f i ` 4`~ _ _ I' I i r'I I i ~I r~~ i ; ~ , 1~ ~ ~ _ ~ _ ` ~ ~ i I r rr Ilr I i~ I' 54os N 0 RTH ~ - _ _ _ - _ _ _i - _ _ PRELIMINARY BMP LAYOUT N ~ ' , +l -11 _ - - _ _ _ Y f~~ ~ I , ; r _ - f _ _ _ f / i _ ~ i } r` WITHERS RAVEN EL r - - - , ~ ~ 1 f; ENGINEERS I PLANNERS I SURVEYOR S l~ - _ ~ x'~ \ _ 111 MacKenan Drive Cary, North Carolina s inch equals 20o feet - telephone: 919.469.3340 www.withersravenel.com