20080350 Ver 1_Stormwater Site Plans_20080226

Onsite Subareas Bio Basin Subareas
Bio °C°
Subarea 101 Area = 0.26 Ac. Area = 2.43 Ac. RCN = 88
MASTER LEGEND RCN = 79 TC = 0.08 Hours
i TC =0.14 Hours
Bio Cells Bio "D" Subarea 102 Area = 0.24 Ac-
Area = 6.18 Ac.. RCN = 89 RCN = 83 TC = 0.08 Hours
SUBAREA 107 e! TC = 0.12 Hours
~p Tributary Areas to a Bio Cell Bio "E"
3 OG^ cop. ' Subarea 103 Area = 0.34 Ac- Area = 2.14 Ac. RCN = 85
1 -II - ~J\ \ Tributary to Wetland Basin RCN = 79 TC = 0.08 Hours
TC = 0.08 Hours Bio "F"
N 6~ ~ •i Subarea 104 Area = 0.80 Ac-
Tributary to Southwest Basin Area = 24.94 Ac. RCN = 78 RCN = 83 TC = 0.08 Hours
Q " \ 0 BI "D TC = 0.17 Hours
Bio "G" Subarea 105 Area = 0.53 Ac-
Tributary to East Basins I f 1 ,TF Area = 7.71 Ac. RCN = 81
RCN = 83 TC = 0.08 Hours TC = 0.13 Hours
r I n- 7 I ` goo soft - GRAPHIC SCALE Bio"H" Subarea 106 Area = 0.31 Ac
100 0 50 100 Area = 2.81 Ac. RCN = 82 RCN = 81 TC = 0.08 Hours
TC = 0.083 Hours
000 MAIM noun Bio °1° Subarea 107 Area = 0.68 Ac.
000 ` a. Wift ~f ( IN FEET) Area = 1.33 Ac. RCN = 80
C y I I 4G 1 inch = 100 ft. RCN = 85 TC = 0.08 Hours TC = 0.08 Hours
I! Bio
OFFSITE 101 A ` Subarea 108 Area = 0.38 Ac. B Area = 0.95 Ac. RCN = 88
RCN = 83 TC = 0.08 Hours
~U TC = 0.08 Hours
` Bio Area Subarea 109 Area = 0.40 Ac
8 , Area = 0.06 Ac. RCN = 86 t RCN = 83 TC = 0.08 Hours
S~UBAR TC = 0.08 Hours
SUBAREA 101 J"~Offsite 104 , I r ,i I Bio "L"
1 Subarea 1 10 Area = 0.28 Ac- Area = 2.87 Ac. RCN = 71
I ~I ('l Pond Northeast RCN = 83 TC = 0.08 Hours
NP = 714 ' S I + ' TC = 0.14 Hours Bio °M"
Offsite 101 Area = 0.89 Ac.
l 1 of f y Area = 1.94 Ac. RCN = 74 / RCN = 55 TC = 0.08 Hours
- TC = 0.16 Hours
la 1 ~ w'~ Bio "N" Off site 102 Area = 1.12 Ac.
' Area = 7.56 Ac. RCN = 92
RCN = 68 TC = 0.08 Hours TC = 0.39 Hours
Y ' t Bio
m Off site 103 Area a = = 0.30 Ac.
SUBAREA 109\, ~,5 Area = 8.90 Ac. RCN = 79 RCN = 68 TC = 0.08 Hours
Existing Pond -1' ' TC = 0.37 Hours
192 ~I NP 728 Bio Offsite 104 Area a = 0.34 Ac.
Area = 8.08 Ac. RCN = 87
SUB EA 106 l ` RCN = 68 TC = 0.08 Hours TC = 0.42 Hours
10 jl~Ax ` Bio II ~
I I NY Area = 0.16 Ac.
7 RCN = 85 ' TC - 0.08 Hours
0 u 1 I 40 , \ i \ \i c-UBAR
N / SUBAREA 104
~*4 S,,d / I i
a '9; p ll \ A-106 ~ ' 1171
747~'t.
SUBAREA 108 y ~ 1 '~4J lj>
1 / P l
3 11, 07 ~ I 9 uV 110 \ 745 I ~ ate`
3 r
^ J7 ~ i
~ ~v
2 1 y~ ` 10 / ~2 N 1~ A I~ / ~QS Y V ,5• II 74 7
9J I401
+ ~ ~a, I ~ rv I
"141. I I/ )]1
_ 1 4i P 5
-752 749 L7;
10 i
l5r
24 OFFSITE 103
RY, 1 UBAREA 1 2. 4 ~=tom \ 1,. 000 000 1000
000
too
r I ~ 7 ~ 1 ii` r I J 1 l ( c too Notes:
'40 ~50 \1 1. Bioretention basin provide water quality only.
M'' I U '.n may' ~SS_ ~ I 2. Ponds and wetlands provide water quality and channel
' ~ I Ih I ~ ~ I i .769 I 9 ~ s protection using the combined analysis method.
U~AR 't03 168~708~ e a , ~I C A ` OFFSITE 102 3. See sheets 3 and 4 for basin details.
II , V \ I I cR 1 1 I
IIII ~ / 1 ~ \ ~1 r ~i51 ~ J I PIII
.766 16~
6 F5
\
-
0 1 \ ` waft
h
e _
000 I ? MGKEE RoA1D 000 ,
o / Soso MECKLENBURG COUNTY, NORTH CAROLINA
0 ? / A ERICKSON CAMPUS AT MATTHEWS
o i N I POST-DEVELOPMENT TRIBUTARY
2
now %woo 000 ? ,.•i 00 MAP
Date: February 4, 2008
1 Scale: 1"=100'
Evans, Mechwart. Hambleton & Tilton, Inc.
Q Engineers - Surveyors - Planners -Scientists Job No: 2007-0342
5500 New Albany Road, Columbus, OH 43054 1~1one:614.775.4500 Fax: [phone]
nn c a. x x v , Sheet: 2 of 4

\ 1
_ _ ~ i ~ I BIORETENTION BIORETENTION BIORETENTION ~
i ~ M~ ~ POND ~~C~~ POND ~~p~~ POND ..E..
~ ~ ~ Top of Bank = 731.00 Top of Bank = 733.00 Top of Bank = 733.00 ~
Bi ~~C~~ 100 Year WSEL = 730.66 100 Year WSEL = 732.42 100 Year WSEL = 732.69 ~ ~
1 ~ ~ ~ ~ ~ - ~ ~ - - ~ ~ WQv Elev = 730.42 WQv Elev = 732.16 WQv Elev = 732.03
~ ~ p ~ ~ i ~ ! Top of Mulch = 729.80 Top of Mulch = 731.70 Top of Mulch = 731.60
c~ ~ ~ ~ I , I ' ~ ~ Top of Gravel Bed = 727.80 Top of Gravel Bed = 729.70 Top of Gravel Bed = 729.60 3~
I ~ i Underdrain invert = 726.80 Underdrain invert = 728.70 Underdrain invert = 728.60
1 ~ I , ~ Bio ,117,1
1 1 I ~ ~ Elevation Area Elevation Area Elevation Area ~
~ ~ ~ I, ~ 1 I ~ ~ ~ I 729.80 475 731.70 814 731.60 953 ~ ~ ~ ~ ' I 730.00 628 732.00 1104 732.00 1702
> ~
Q t . ~ ' 32 I ~ ~ r 731.00 1230 733.00 1786 733.00 2496 ~
~ I. I J ~ U' \
' I
,I I I ~ ~ ~ c~ ~ ~ a' Volume Provided = 37.9 cy Volume Provided = 63.3 cy Volume Provided = 96.7 cy ~ 1 ~ 9 ~ ~ Bio "E" 1st Stage Outlet = 1st Stage Outlet = 1st Stage Outlet = ti` ~ 1 1 l \
~ ~ 1ft/day infiltration through soil 1ft/day infiltration through soil 1ft/day infiltration through soil j 1 1 1
~ ~ j ~ ~ 2nd Stage Outlet = 2nd Stage Outlet = 2nd Stage Outlet = 1 1 I
i ~ ~ ~ ~ ~ r / 45 Neenah R-4859-C Grate @ Neenah R-4859-C Grate @ Neenah R-4859-C Grate @ ~
~ ~ ,d I i i ~ ~ _ 730.45 732.20 732.50 ~j~~ 14,
1 1 ~ ~
j ~ ~ I ~ ~ i" I 733--~---'~ I ~ ~ ~ I, ;ETENTION POND "F"
i ; i Elevation Area
~ I i ~
1 ~ . ~ I Top of Bank = 733.50 733.50 732.00 1084
\I ~ ~ ~ ' ~ ~ 100 Year WSEL = 733.45 733.45 733.00 1595
~ ;i I I I ~ ~ ~ ~I ~ / WQv Elev = 732.90 732.90 734.00 2365
~ / Top of Mulch = 732.00 732.00 Volume Provided = 85.7 cy
~ ~ Top of Gravel Bed = 730.00 730.00 1 st Stage Outlet =
~ I I I i I ~ ~ Underdrain invert = 729.00 729.00 1 ftlday infiltration through soil
~ I I ~ I / 2nd Stage Outlet =
o ~ Neenah R-4859-C Grate @
~ I ~ I I I ~ I ~ 732.95
I I ~ I np'~
~
~ i~ i
J ; ~ ~ ' \ ~ BIORETENTION i ~ i ~ i~ BIORETENTION i
BIORETENTION ~ ~ _ i BIORETENTION X733 -
i ~ POND ~~G~~ ~ i POND ..H.. N POND i i ~ , f! POND i
a s, ~ ~ ~ i i
~ ~ 41 Top of Bank = 734.00 ~ ~ Top of Bank = 732.00 00 ~ ~J 1~ Top of Bank = 730.75 I ~ I ~ Top of Bank = 733.00
~ ~ / 100 Year WSEL = 733.09 ~ N ~ ~ 100 Year WSEL = 731.01 ~ 01 ~ ~ ~ ~ ~ 100 Year WSEL = 730.69 I ~ 100 Year WSEL = 732.84 ~
~ , ` WQv Elev = 732.60 ~ ~ ~ ~ WQv Elev = 730.61 61 ~ I I ~ i WQv Elev = 730.21 I ~ ~ ~ I WQv Elev = 732.42 ~ ~
o ~ Top of Mulch = 732.00 ~ ~ ~ Top of Mulch = 730.00 ~ AO ~ 1 I ~ Top of Mulch = 729.50 I ~ ~ ~ ~ ~ I Top of Mulch = 731.50 ~ a
N ~ i ~ ~ Top of Gravel Bed = 730.00 \ ~ ~ ~ Top of Gravel Bed = 728.00 ~ 00 ~ \ ~ ~ ~ ~ ~ ~ Top of Gravel Bed = 727.50 ~ ~ ~ Top of Gravel Bed = 729.50 ~
~ ~ Underdrain invert = 729.00 1~ ~ \ 4 Underdrain invert = 727.00 00 ~3~`~ ~ ~~O 1j 1 I ~ Underdrain invert= 726.50 ~ I I I ~ ~ Underdrain invert= 728.50 Bio "K"
I I
~ ~ ~ ~ Elevation Area ~ \ I Elevation Area ~ ~ ~ ~ Elevation Area ~ ~ ~ Elevation Area
m ~ / ~ ~ 732.00 1156 ~ ~ I 730.00 694 ~ ~ ~~.1, ~ Imo. I I ~ . ~ 729.50 1279 733 731.50 737 23
Bio "G" 1 ~ / ~ 733.00 2150 ~ 1 I 731.00 1162 ? ~ 1 ~ 730.00 1615 ~ ~ ~ ~ 732.00 911 -741 / ~ \ 6 , 1 730.50 1976 I i' ~ I J
4 ~ I / 734.00 2200 ~ ~ Bio i ~ 732.00 1730 ` ~ I r
~ ~ ~ 1„ , 1 j ~ ~ ~ ~ 733.00 1300 ~ ~ i 13io, I' ~ ~ 730.75 2023 i `n i I i I ~ ~R ~ /
~ ! / Volume Provided = 140.8 c ~ ~~H~~ ~ Volume Provided = 87.2 cy • ~Y 1 ~ ~ ~ ~ I Bio "J„ ~ Volume Provided = 56.0 cy ~~j ~3g ~ / 745
~ 1st Stage Outlet = ` ~ ,~M ~ ~ 1st Stage Outlet = ~ ~ 1 ' 1 ~ Volume Provided = 78.4 cy ~ ~ ~ ~ 1st Stage Outlet = ~~,3)8 /
`~S ~ ~ 1ft/day infiltration through soil ~ i , ~ ~1 r~ ~ 1ft/day infiltration through soil ~ ~ ~ ~ 2nd Stage Outlet = I ~ ~ i 2nd Stage Outlet = soil ~>,3 ~ 1 1st Stage Outlet = I ~ - ~ ~ ~ 2 ~ 1 i ~ I 1ft/day infiltration through soil
~1 ~ i ~ ~ 1ft/day infiltration through soil 1 25 ` ~ ~ 2nd Stape outset = BIORETEI ~ !i ~ I ~ 2nd Stage Outlet = ~ ~ / Neenah R-4859-C Grate (c~
RETENTION POND "K"
S ~ ~ ~ ~ Neenah R-4859-C Grate @ ~ I r~ ~ Neenah R-4859-C Grate @ ~ Elevation Area
N ~ l ~ ~ 732.75 ~ I ~ 730.75 ~ ~ ' , ~ Neenah R-4859-C Grate @ I ~ ~ i 732.50
a / ~ / / 1~ I~ ~ ~ 1 I~ ~ p ~ ~ - 730.25 I I I I I Top of Bank = 743.0 I ~ ~ ~ I I I ~ I I ,~`o I 100 Year WSEL = 742.8 ~ ~ / \ I ~ ~ I / WQv Elev = 742.3 ~ I \ / ~ ~ ~ ~ ~ Top of Mulch = 741.5 ~ ~ ~ i~ , / / ~ ~ ~ ~ ~ ~ Top of Gravel Bed = 737.5 \~3 / d ~3~ ~ ~ ~ Underdrain invert = 736.5 ~ I ~ I / 743.00 741.50 698
742.84 742.00 930
742.35 743.00 1468
741.50 Volume Provided = 59.1 cy
= 737.50 1 st Stage Outlet =
736.50 1 ft/day infiltration through soil
2nd Stage Outlet =
Neenah R-4859-C Grate @ 742.50
~ I ~ I / / ~ - I ; " I ~ IS I 1
~ , ~ i ~ i~ BIORETENTION BIORETENTION J BIORETENTION ~ i i BIORETENTI~r POND "N" ~ ' ~ ' ~ ~ TENTION
~ i i i % i ~ - POND ~ POND ~~M~~~.~,.~ % ~ . i i JD "O"
l~ I % ~ I~~ - i , POND
i / ~ \ i op or ~sanK is3.uu i op or ~sanK /43.L0 , - i op of t3anK 744.00 , \ ~ ~ / Top of Bank = 7 ~ ~ 100 Year WSEL = 743.71 - / 100 Year WSEL = 7 '.52 \ ~ ~ WQv Elev = 743.04 ~ ~ ~ 734.50
k ~ ~ ~ I / 100 Year WSEL = 732.94 100 Year WSEL = 743.17 EL = 734.33
~ ~ ~ I / ~ WQv Elev = 732.67 _ _ WQv Elev = 742.52 734.03
~ ~ ~ I / ~ 741 Top of Mulch = 732.00 - - . _ ~ , Top of Mulch = 742.00 '.00 \ Top of Mulch = 742.00 ~ / WQv Elev = 7 ~ , / ~ Top of Mulch = 7 '~00 ~ Top of Gravel Bed = 738.00 ~ , ' / ~ ~ ~ Top of Gravel Bed = 7 x.00 ' ~ ~ Underdrain invert = 737.00 / ~ / 733.50
` ~ I ~ ~ / Top of Gravel Bed = 730.00 - ,~o°~ Top of Gravel Bed = 740.00 Bed = 731.50
p~ ~ Underdrain invert = 729.00 ~ , Underdrain invert = 739.00 ~ Underdrain invert = 7 a 9 X43 Elevation Area \ ~ v , ~ ~ i Elevation A Ivert = 730.50
~ ~ ~ ~ I ~ ~ ~ 1 ~ I ~ ~ I ~ ~j- Elevation Area ~ `w~ Elevation Area Area
o w I ~ ~ ~ 732.00 296 ~ ~ 742.00 1626 '6 \ ~ 742.00 2208 ~ / ^ / 733.50
a ~ ~ ~ ) 733.00 617 xj ~ 743.00 2200 10 ~ ~ 743.00 3088 / ~ / 734.00 1 ~0 ~ i 744.00 3815 ~ ~ ~ 734.50 1 530
~ ~ ~ 1 I 3s 0 744.00 2250 1054
a I ~ 1' ~ ~ II II II Volume Provided = 16.6 cy ,~D~ 1531
a ~ I ~ ~ 1st Stage Outlet = \ Volume Provided = 153.0 cy .0 cy ~ Volume Provided = 225.0 cy ~ - - - -738- - i / ~ ~ Volume Provided = 3 '1 ~ ~ / 1st Stage Outlet = ~ ~ ~ / ~ 1st Stage Outlet =
W ~ ~ ~ ~ ~ ~ 1 ft/day infiltration through soil ~ - - _ '4~, 1st Stage Outlet = ided = 38.2 cy
soil 1 ! 1ft/day infiltration through soil i / 1ft/day infiltration throu ~ 2nd Stage Outlet = ~ ~ ~ ~ / ~ 2nd Stage Outlet = tlet =
o I I ~ ~ 2nd Stage Outlet = - 1ft/day infiltration through soil ~ ~ ~ ~ 3t~ ~ ~ Neenah R-4859-C Grate @ - - 2nd Stage Outlet = ~ ° I ~ I I 732.75 ~ Bio "M" ~ ~ Neenah R-4859-C Grate @ Rion through soil
itlet =
~ I ~ ~ 742.75 @ 1 ~ BOO Neenah R-4859-C Grate @ ~ ~ 3~~~~ i ~ i ~ Neenah R-4859-C Gra 1 Q 743.00 - - - - - ~ ~ / 734.10 X59-C Grate @
~ 3 i''1 1 ~ / /
o ~ I Rio" i ~3 22~ ~ ~o ~

I ~I ~ ( I I 1~
~ ~ l I I I / i 3 0~ -
~ ~ ~ \ ` / MECKLENBUR ~ 3S ~ ERICKSON C '~3j X36\ _ _ _ ' / BA i i/ XLENBURG COUNTY, NORTH CAROLINA
ON CAMPUS AT MATTHEWS
BASIN DETAILS
W ~ ~
Date: February 5, 2008
~ ~ / ~ / Scale: 1 20'
o i l ~ l ~ l Evans, Mechwarf, Hambleton & Tilt mbleton & Tilton, Inc.
Q / ~ ~ / ~ / ~ / Engineers • Surveyors • Planners • S 5500 New Albany Road, Columbus, Phone: [phone] Fax: 614 • Planners - Scientists Job No: 2007-0342
J, Columbus, OH 43054 Fax: [phone]
U M C M X % Sheet: 3 of 4. X x v i

i / / ~
EXISTING POND
\ ,1 I ~ ~ \ ti \ \
~ ~ ~ ~ I ~ i / \ ~ \ \ Top of Bank = 730.00
\ \ ~ ~--734---_~ _ \ \ \ A \ 100 Year WSEL = 729.53
~ ~ / = 721.00 / v To of Bank / ~ ~ ~ / ~ ~ \ 50 Year WSEL = 729.27
a-~~. ~ , _ ~ ~ ~ 100 Year WSEL- 720.99 10 Year WSEL = 728.60
50 Year WSEL - 720.67 ` I ~ / / ~ ~ I V `~,I ~ ~ : ~ \ ~ ~ ~ 733 ~ - ~ \ \ \ _ CPv E lev = -
i l ~ l i I i ~ ~72 ~ l ~ / ~ ~ ~ I I A~ / ~ ~ / / / ~ - ~ ~ 10 Year WSEL - 719.00 \ ~ _ \ \ \ _ ~ 3 _ _ -732,, \ l \ \ \ \ \ \ ~ 132 ~ ` 1 ,-133 ` ` 1 \ \ \ \ ~ \ \ Normal Pool = 728.00
I I ~ i ~ ~ , ~ ~ l i I I ~ ~ ~ y ' ' ~ CPv Elev = 716.94 ~ ~ 1 v vv v vv v~ v v v~ I t ~ ~ ~ 3~-__-__ 731 2-' v~ v vv v ~ v v ~ \
I I i~ I N f I \ - ~ I i , ! , I Normal Pool 714.00 i I \ \
i i i ~ I / I 1 ~ I f / I V I I ~ F '~i. lei; J _ _ ` / \ \ \ \ \ \ \ \ \ - 129_ _ ~ ~ ~ / I I \ \ \ \ \ \ \ \ , Elevation Area
~ ~ I 1 r~ ~ 1 ~ A A ~ A I ~ -l, y ~ ~ ~ \I ~ ~~3 1 ~ ~ --'T` ~ 1 ~ ~ A ~ / ~ I \V A V A \ \ l~ { ~ ~ y~ ci.~~ t~ ~ _ ~ 2'I - _ ~ vv ~ 'a ~ V A vv A A ~V A A\ 728.00 50379
^M Elevation Area ~ ~ I ~ I,. ~ , ~ \ ~ ~ \ \ \ 729.00 54903
~ i, \ ~ ` ~ i ~ I ~ / V A ~ N \ ~ ~ ~ 714.00 38494 ~ E~'A 8 C ~ ~ 12 ~ v ~ ~ ~ ~ I t v v ~ ~ v v ~ ~ ~ _ 122 ~ \ \ \ \ \ \ \ 730.00 59393
'i ~ I ~ r ~ ~ 715.00 41307 Volume Provided = 2.52 ac-ft
I ~ ~ ~ / i ) ~ ~ i I A ~ ~ , i , , X726= I ~ ~ . + ~ \ I ~ , ~ ~ ~ , 716.00 44175 X725 5 ~ ~ \ \
~ III ~ ~ _ ~ Av ~8~ ~V \ \V A A\ 1 st Stage Outlet =
~ 717.00 47102 , , I ~ ~ ~ a ~ , as I I\ ~ 1 ~ n ~ ~ s ~ , v ~ 718.00 50084 ~ \ I O \ ~ \ ~ I \ ' ~ ~ X26 ~ ~i I I I I j ~ ~ \ \ ~ \ \ \ 1 \ Neenah R-3401-A1 0G Grate
I ~ ~ ~ ~i v i I ~ ~ ~ i ~ ~ . I I ( v ~ ~ v v v ~ A @ 728.00
I ~ ~ ~ ~ ~ ~ v 719.00 53123 i V ~ j i I I 1 v ~ v v ~ V A \ ~ \ I I Existin Pond - Outlet Control = \
~ ~ ` 1 729 1 ~ ~ ~ ~ , ~ 720.00 5621$ V > t A 1\ I III 1 ~ ~ X29 \ \ \ \ \ 24" Culvert @ 723.00
` ~ ~ ~ ~ ~ o ~ ~ ~ , ~ / ~ _~r, ~ 721.00 59367 r~~~,, , , , t d~ I ( a \ ~ ~ 1 \ k~ I 11111 I N ~ ~ ~ i ~ \ \ Emergency Spillway =
` ~ , ~ o°~ >z ~ ~ / ~ ~ ~ ` ' ~ - ` Volume Provided = 7.83 ac-ft t ~ ` ~ ~ ~ 1 ~ A V ~ ~ ~ . i ~ 11111 1 I ~nN N i ~ ~ \\j \ \ \ \ ~ 15' Wide Weir @ 729.50
~ ' ~ \ 1 ~ 1~" A \ \ ~ ~ , v ~ ~ ~ ~ ~ y 1st Sta e Outlet- I ~ ~ ~ ~ ` I;' I I I l 11 I ~ ~ ~ o I ~ _ _ ~ ~ , ~ vv ~ \ W~
I ~ v ~ ~ ~ 4 Orifice 714.00 ~ I I ~ ~ ~ ~ A ` ~ ~ _ ~ I' ~j` III I ~ n I _ - -729- ~ ~9 v v v v \ I i~ / i NII I _ - v v v v v \ \ i I 1 _ v ~ 1 f - 1
~m~~ n o ~ . ~ ~ ~ ~ 2nd Sta a Outlet ~ ~ II it 1 !1 ~ _ 7 1 \ i \ \ \ \ l SOUTHEAST POND
I ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 3 3 Orifices 716.75 ~ ' y ~ ~ / IiII 1 I 7 732 , \ \ \ ~'t • / i I ,r 33 ~ v ~ v ~ V v
~ ~r I ~ ~ . I ~ . ~ ~ ' ' ' ~ 3rd Sta e Outlet = ~ . , I I ~ I r. ~ ~ ; J / II I ,r 734 .gyp ~ _rR ~ ~ \ r~. II ~ - 10 ~ I III - , \ ~ 73 \ \ ~ \ ~ \ , \ >Z Top of Bank = 735.00
v I ~-I I ~ , ~ Neenah R-4859-C Grate _ ~ ` ICI ~ " \ - 735 ~ \ IhI l}, i% i 734 \ t ~ ~ 100 Year WSEL = 734.64
I ~ 1 1 1 I I ~ I ~ ~ 1 I ~ ~ I ~ ~ I w ~ 718.00 , I I V I ~ f ~ i I \ 11~ s~ ~ / / li, ~ I 1 i ~ i ~ ' 732 1 ~ ~ 1 ~ 1 / I I ~ v A ~ ~ , ~ 13 73u""~" ~ ~ 1 ~ , i/ ~I 1~ i / ~ i ~ 1 1 50 Year WSEL = 734.19
1 ~ ~ ~w \k ~ ~ Outlet Control = - - I'll 1 I i , ~ _ _ _ ~ i - 7 t \ ~ ~ ~3 ,,1 , , ~ ~ So~~east Po 10 Year WSEL = 732.90
I ~ ~ ~ ~ ~ I~ ~ ~ a aN ~ ~ ~ 13 V A ~ 1 ~ ~ orthe st p nd ~ ~ ~ _ ~ I ~ 1 I ~ ~ ~ ~ ~ ~ ~ ~ E ~ 1 0, ~ ~ ~ , A 24 Culvert 713.00 I ~ 1 y N ~ ~ ~ o I ~ ~ i ~ 1 ~ i ~ i ~ ~ Nl ~ ~ ~ ~ ~ ~ - - ~ 1 i i i - ~ / ,I I 1 ~ '~21' / 9 ~ ~ 729 728 v CPv E lev = -
\ }~N ~ ~ ~ 1 , ~I > >N ~a 1 - I ~ ~ ~ ~ \ ~ \ Cf 1 4 ~ v' to ~a 'l ~ V ~ I ~ ~ ~ i i I , ~ ~ ~ ~ o i ~ ~ Emer enG IIIWa = I ~ N J ~ to ~ a 1 I i ~ 1 ( OCe~a ~ ~ ~ 1 ~ ~ ~ \ ~ --y' - ~ i 0 1 ~ , ~ ~ 72 ~ - v ~ ` ~ I t 1 t 1ti tti 6 / 725 4 _ J _ - ~ \ , \ Normal Pool = 730.00
t w~ i ~ t ~ ~ Y I a ~ o~ ~ ~ 1 ~ ~ , ~ I ~ N ~ ~ ~ ' , ~ ~ ~ ~ ~ o w , ~ ~ ~ _~--r ti~~~~, 10 Wide Weir 720.50 < ~ ~ / I I 1 t 11' 1~ i , ' 12 i -734- - - ~ , ~ v /
~ ~ ~ ~ 1 ~ ~ a, ~ ` a ~ ~ 1 t ~ 1~1 ~ ' i i 1241 72 6 i r,, ~ 1; I~ 1 i ~ i r ~ ~ 12 to fi 1 ~43
~ I r" 'i ~ ~ ~ ~ ~ I I I i~ ~ t r i ~ ~ ~ 1~ ~ t t It ~ ~ ~ ~ 121 So a \ I t , ~i t ~ ,~0 ~ ~ 7 m 73 ~ 1 1 ; ~ 'i~ ~ ~ ~ 729 ~ ~ 731 \ ~ ~ \ Elevation Area
~ ~ ~ I I~ I ~ ~ ~ ~ ~ I I ~ ~ ~ ~ ~ ~ ~ I I I , I ~ ~ ~ ~ ~I 1 t ~ 1 t ~ ~ " ~ ~ ~ ~ ~ ~ 733='='-=---- .~S , ~ I I 1 i i 734 S,.` f r 730.00 50379
I I i ~ y ~ I ~ ~ ~ I ~ ~ 1 1 t l I f 1 - 735 ~ I 1~ f h 1 I ~ 736 1 ~ 731.00 54903 1711 733.00
1 I ~ ~ ~ \ ~ t 1 i 1 11 1 1 1 I ~ ~ 73 ~v 1 ~ t I r i I ~ 739---- ~ 4 , 1' ~ 732.00 59393
I 1 { ~ I l A \ ~ ' ~ 1 I ~ , ~ vA ~ ~ 1 ' , ~ 7 ~,w.....~-.~ / ~ ~ , 1 ~ / ~ 741 - I
I I ~ I t ~ v ~ i ~ C ,~0 ~ A \ ~ ~ ~ ~ ~ ~ ~ 31 ~ ~ t 1 , 7 - ~p / _ ` f ~ i ~ 744 _ ; T - 734.00
I ~ i I O A V ~ ~ ~ Y ~ ~ 1 1 ~ 1 1ti 82 ` ~ ` ~ ~ V 1 \ ~ ~ 1 , ~ I ~ ~ _ 745 ' \ / ' ` I 1 ~ i 746 ~ 735.00
\ ' i i Volume Provided = 1.83 ac-ft
1 ~ ~ I '1 ti 1 ~ , t ~ ~ . ~ , ~ ~ ~ 2 L- i / i i' \ \ \ ~ _ _ ' ~ ~ l ~ / ~ mom'---„"". ~ ' ~ ~ _ ' \ _ / ~ ` ~ i' 1 st Stage Outlet =
1.75" Orifice @ 730.00
ry ~ ~ ~ ~ ~ ~ , 13 ~ / ~ ~ ~ - ~ 6 -739--_-.\ ~ ~ _ 35 ,136 ~ ~ ~ - _ 746-- - 2nd Stage Outlet=
N ~ I i ~ 1 ~ ~ ~ ~ ~ ~ ,,'i, nn~ ~ ~ ' ~ 31 '135.- - _-----~Tv"`` / ~ ~ _ ~ i / , _ - y , - - - 7 _ / l Neenah R-3401-A10G Grate
r i , ' i ~ i 40- ~ '74 - - @ 732.00
N ~ ~ N 727' ~ i' -r ~ ~ - ~ . _---r~ i ~ i _ 7~T , , ~ 1 - , ~ I I 1 i ~ ~ i Outlet Control =
~'`r. ~ ; 1 i ~ ~ ~ ~ t 1 , ~ _ ~ ~ , , - - I / ~ / ~ i i } ~ ~ ~ / ~ - ~ - - - I/~~ 24 Culvert @ 728.75
rl`~.. v I _ ~ 'I / / l -F-- f s.~ ~ . _ _ - - / ~ I i i / i i _ - - - _ _ ~ ~ i
~ ~ ~ ~ 1 ~ ~ ~ * i 'r' ~ N ~ r. X32- ~ 1 144 y/ / / ~ ~ ~ ~ i -74 _ Emergency Spillway = 45- TT~- 10' Wide Weir @ 734.50
Q ~ ~ 1 t ~ C'~_ ` ~ ~ l ~ li ~ ~ 1 ~ ~ ~ ~ ~ 1 1 % - ~ -726- ~ } . ~ 1 : 1 ~ ` 1 ~ • ~r ~ .--~k -13 / i' / ~ / ~ / --746-- _ ice` ~ e / ~ / / ' ~ , i- - ~ -
Ql _ ~ ~ ~ 1 , j `4 72~ ` i ~ 2k ~ r.f my ~ x 29,~, ~ 746 ql-~''"~~ - I / ~ ~ ; / / / / 1 /
. , ~ ~ , , ~ ; . GRAPHIC SCALE ~ ; , / mil'' - - /i \ I ~ 1 / / / , \
7 ~ - ~ n f~ ~ ~ ~ , 1 \ , ~ - - - ~ ~ ~ \ ~P~ 8 C 40 0 20 40 , _ ~ , ~ ~ ~ - _136_ ' ~ ~ , ~ ~ ' " I I 1 / / ; _ ~ ~ _ _ - _ _ _ _ - , - GRAPHIC SCALE
! ~ ~ ~ \ \ \ N , \ ~ ;i' / ~ ~ to ~ , _ _ _ ~ { ~ --737-,"' ' ~ I ~ I ' i / ~1 / I f 40 0 20 40
~ ~ ~ ~ ~
Q ~ t ~ ~ ` < 22~ ' ` ~ 1 i c = 40 ft
~ " ~ i ~ ~ ~ ~ ~ ~ ~ III c 1 inch = 40 ft
h
O / ~ ~ ~ \ / ,1 I I i
N / ~ _ _ ~ /
~ \ o r N ~ / ~ ~ \ u ~ ~ 151 / ~ 1 ~ ~ I , ,y
N / ~ IP II II II i / \ 3 I / ~ S 1 ~ 1 S ~ 1 1~ i / \ M M I ~ 4 1 1 j~ h1' / M v 1 ~ I,., 11 I / / v ~ n 1 \ 36~
~ ~ ; / / / ~ \ ~ ~ S V 1 \ V\ i V 1 / / ~ A v I ~ / v v 1 i I 7~ \ ~ ~ \ \ \ 1 ~ I \ I / / ^h \ \ t 1 I .734\-- 734
~ \ / / > > i ~ ~ _ ~ To of Bank 743.00 1 ~ w v ~ > '~~,I 1 i 1 / ~ v v ~ v Y, ~ ~ s I I F 1 t / i / 1 1 N 732- ~ ~ ' ~ ~ I It ~ , ~ r To of Bank = 751.00 1 t I ~ ~ ~ ,3, 732-
> / _ 6 \ P i / / To of Bank 744.00 - W / p v v _ A ~ ~ - 100 Year WSEL - 742.34 ~n 1~ i s 1 ~ ~ p 1 u w v W -a J A~ I,,~ 1 1 .a 1 / ~ ~ A 1 1 o 'f ~ ry N v ~ ,,,t ~ a ~ ~ ~ 1 S I I I 1 ~ 1 / ~ _ \ t 1 ~ r~ 1~ 29 \ \ ~ ~ ~ ~ ~ 1 100 Year WSEL 747.35 1
m / ~ / _ \ ~ 1 Year WSEL 743.56 ~ I 00 ~ q / ` 9 = 741.68 / / WQv Elev v ~ ~ ~ ~ t ss \ I r,. I \ I ~ / / v 1 t , v ~ ~ \
/ _ ~ ~ ~ W v Elev 743.24 Q ~ ~ 1 ~ ~ ~ . 50 Year WSEL 747.07 1 . _ ~ ~r N~ 1 1 I I 1 1 r S$ v , I tEW3 v - v ~ ~ 1 1 1 , I ~ / _ v ~ ~ ,v
~ ~ ~ ~ ~ ` T of Mulch = 741.25 ~ / v oP ~ To of Mulch = 742.25 , / p \ \ 1 \ - ~ , ~ 10 Year WSEL - 746.40 ~ ~ ~ v ~ , ~ I ~ ~ N ' 1 / / % v 50 S ~ ~ v I I ~ I~' / i v o 48 ~ J h~ l / _
To of Gravel Bed - 739.25 , 1 \ p ~\a To of Gravel Bed = 740.25 p v ~ ~ ~ , ~ / CPv Elev 744.74 r ~ t 1 ~0 77 ~ 1 1 ~ , / ~ ti`~I ~ , 1 1 I ~ 1 I / ` ~ ~ ~0 A
r ~ - Underdrain invert = 738.25 J ~ ~ I = 739.25 ~ ~ ~ ,b / Underdrain invert ~ ~ ~ v ~ t t I 1 Normal Pool = 743.00 ~ ~ 22~ I 1 4 , I 1 / / , ~ I 4~ , I s l ~ I I / 1 I
h ' d ~ ~ ~ / / ~ ~ _ ~ t w , , , a ~ \ , , / i , , 1 I I I ~ I 1 / ~ 1 5 1 / I I v 1
k ~ \ ~ - - Elevation Area ~ l 2 Elevation Area ~ ~ N ~ ~ ~ ~ ~ I t , so I ~ ~ I t I I ~ ~ s, I ~ 1 1 4 1 t v 1 I AS I I I ~ ~ 1 I I/ v ~ ~ ~ v , , ~ ~ Elevation Area ~ ~ ~ \
k / ) 741.25 567 > > ~ 742.25 596 , I I E ~A ~ I I I / ~ ~
~ ~ 7 W / I ~ - 4 - 742.00 871 a ~ ~ 744 . , 743.00 851 ~ 1 1~ 4' A ~ I J { ~ i v 1 A ~ I 743.00 11193
~ / ~ B~ P ~ ~ ~ ~ 743.00 1232 y ~3 o ~ 744.00 1022 \ ~ 1 1 ~ ~ I 744.00 12955 I I I; W o- 1 s ~v ~ I ~ I I ~
a I / Q ~ ~ s / ~ ~ i - - - - 1 ~ ~ I I ~ I 745.00 14744 / ~ , ; I ~ ~ v\
~ ~ / ~ _ ~ ` ~ Volume Provided ~~.6 cy ,y ~ rv~r ~ 74 746.00 16649 ~ ~ ~~n`~~~ 1 ; ~ ; ; ~ ~ , ; ~ ; ; ~ ,
m Provided - 54,6 c w Volu e y _ ~ ~ / ~ 14 ~ - 1st Sta a Outlet = n ~ - ~ 1 1 , 747.00 18581 ~ ~ 1 ~ ~ ~ ~ ~ ,
1 st Sta a Outlet - 1 9 A / ~ - ~ 1 1ftlda infiltration throw h soil ~ 1 ~ Y g ~fner enc ~ ~ ~ ~ ~ 67 i ~ , / / ~ ~ ail g v , ~ ~ ~ ~ 748.00 20559 ~ ~ ~ ~
w 1 ~/da infiltration throw h soil ~ ~ ~ ~ Y 9 1 - , ~ ~ 2nd Sta e Outlet - Spillwa °a ~ ~ 1 I ~ ~ Y I ' 1 ~ ~ ~ 731 ~ ; y 1 1 ~ 1 ~ ~ ~ 749.00 22569 1 i ~ ' ~ ~ i ~ ~ ~1 i ~ ~ > 1 ~ ~ A ~ GRAPHIC SCALE
/ 2nd Sta e Outlet = I g o~ Rio Q - Neenah R-4859-C Grate I I i 1 ~ ~ i 1 ~ ~~h 6~ sss ~ I ~ ~ ~ ~ _ _ , ~ l Q Aa ~ ~ 1 a 750.00 24715 ~ Evu~ , ~ ~ \ 40 0 20 40
l ~ ~ I \ ~ ~ 1 J Neenah R-4859-C Grate ~ ~ 742.2 / 1 / 5 1 1 i l ~ 1 N ~ ~ ~ ~ ~ I 1 751.00 26873 Y\
~ 1 8 743.25 ~ , / l / ~ 4 6 , ~ ~ ~ ~ ~ ' Volume Provided = 5545.7 c ~ ~ ~ r r ; ,
o / ~ ~ l / - - ~ ~ ~ ~ ~ ~ ~ y ~ ~ ~ ~ 1 ~ 1 - ~ ~ . ~ w . ~ ~ ~ , 1 st Sta a Outlet - ~ ~ , ~ , , ~ ~ \ < 1 inch = 40 ft
/ ~ ~1 / I 1 ~ o / ~ 4 i~ I ~ ~-.i ~ 1 1 I ~ ~ ~ n ~ \ V ~ ~ ~ i ` ~ I I 1 i 1 ~ ~ ~ ,t i / I ~ ~ ~ ~ 1.5 Orifice 743.00 . ~ ~ ~ ~
i 2 4 ~ - / 4 7:43 ~ i~ a ~ ~ ~ _ I N w ~ 2nd Sta e Outlet
~ " _ ~ ' ~ 3 3"Orifices 744.50 Volume Provided - 0.695 = 0.695 ac-ft
o ~ ~ / ~ ~ ~ 0 / I~~~ ~ ~ ~ _ ~ ~ ) h ~ ~ p ~ ~ 3r Outlet = 1st Sta a Outlet =
/ ~ ~ C ~ y~~ ~ / ~ i a 'c / ~ ~i ~ d Sta e ' ~ ~ ~ ~ ~ ~ ~ ~ _ _ 1.25 Orifice 723.83 23.83
~ ~ Neenah R-4859 C Grate u To of Bank - 729.25 ~ p , ~ ~ n I I ~ _
~ ~ ~ ~ ~ ~ ~ ~ ~ 746.75 _ 2nd Sta a Outlet - ~ ~ ~ u~ , ~ , 10D Year WSEL 728.81 ~ I e n ~ i d _r_ r i-- _ -
O / / ~ h ~ --l ~ 6, , / ~ ` ~ ~ 4 ~r ~ aN ~ ~ Outlet Control - = Neenah R-4859 C Grate ~6 ~ ~ ~ ~ ~ ~ a , , 50 Year WSEL 728.66 Grate @ 727.25
i ~ RAPHIC SCALE GRAPHIC SCALE G o ~ / ~ / ~ ~ ~ ~ ~ ~ 15 Culvert 742.78 = Outlet Control - ~ ~ ~ ~ ~ u ~ ~ 10Year WSEL 728.09 _l ~ _ _ 15"Culvert 723.01
~ R „ ~ ~ ~ Emer enc S illwa _ @ ~ , I , I Y CPv Elev 727.26 3.01
Z ~ 2a o ~o zo . - , ~ zo o ~a zo ~ t ~ ~ k / / / ~ ~ - ~ ~ ~ ~ ~ ~ ~ - r - 10 Wi Weir 749.00 = Emer enc S illwa ~ de 72 .2 g y p Y ~ , 1 1 WQv Elev 6 5 l~ l ~l~~l ~ I vay
o / / , I ~ G ~ _ ~ _ _ 8 Wide Weir 728.00 _ @ ~ - - ~ ~ Normal Pool - 724.00 ~ ~ a~i ~ 1 ~ ~ '28.00
/ ~ ~ ~ 1 inch = 20 ft 1 inch = 20 ft i ~ 4 I _ ~ r. I-- - ' ~ ~ i ~ ~ 1p i
_ ~ ~ _x'14 1,48-'" ~ 1 ~ I! 1 ~ 1 n - l ~ ~ , ~ ~ Elevation Area
g ~ ~ / i ~ ~ ~ ~ r ~ I - - ~ 724.00 5039
~ ' ~ ~ - ' - 725.00 5461
~ ~ i ~ , - -1 1 MECKLENBURt I f I i _ ~ 726.00 5866 XLENBURG COUNTY, NORTH CAROLINA
O _ ~ 727.00 6254
O N ~ ~ ~ 1 ..150_ ~ i ~ i ~ ~ 1 , ~ 728.00 6638 ON CAMPUS AT MATTHEWS
V w ~ - ~ ~ ' ~ 729.00 7100 ~ BASIN DETAILS
~0 _ - ~ , ~ ~ ~ _ ~ i ~ ~ i ~ i
4
w ' ~ ,..152" ~ ~ 1 ~ / r ~ i~ ~ 7 ~ , /
0 v - ~ ~ GRAPHIC SCALE g ~ Date: February 5, 2008
w • Scale: As Shown
Q A _ - ~ ~ 151 , 1~ , ~ _ 3' _ f 161 ~
' 75 ~ 16 ~ Evans, Mechwart, Hambleton & Tilt _ - 1 En ineers • Surve ors • Planners • Sc _ - ~ e~ ey 9 Y mbleton & Tilton, Inc. • Planners • Scientists Job No: 2007-0342
Q 1 7 _ 5500 New Albany Road, Columbus, 0 - ~ i ~ 6 ~ 61 ,1 1 inch - 40 ft Phone: [phone] Fax: 614 J, Columbus, OH 43054 Fax: [phone]
U iY~~ M C M X X Sheet: 4 of 4 x x v I

i i Client:
i
\ IN .
i
Enc son
Retirement Communities
20.6; 024 ..Sc r+ 1 ~ \ o
tit:
GRAPHIC 0 50 ,0o GRAPHIC SCALE / 50 100 200
Evans, Mechwart, Hambleton, & Tilton, Inc.
Engineers • Surveyors • Planners • Scientists 8307 On;versdy Execulive Peck Drive. Suile 231. Chodotte. NC 28262
1 inch = 1( 1 inch 100 feet Phone: [phone] Fax: [phone]
nn c nn x x v i
I I \ Offsite mitiga )ffsite mitigation
I \ 1 \ / 1 area on back rea on back side
\ \ % ! ' of mound ! of mound
t I \ \ \ li
/
sq
i
\ \ Ex. Pond to Pond to
be filled filled
RB 2.4
Project Title: O / ; ,,1
ee
/ I MATTHEWS
I~ RB 2.5 74 \
CAM PUS
t II I ! MCKEE ROAD -
Date: Issued for: 2-4-2008 Erickson Cost Analysis
i I I RB 2.1 RB 2.31
I
I j I ,1
1'.: POND 2 POND 2
'1 I L~ J
~ fit.....
i t.'. ..i' r' . .
t RB2.2 CB 2.0 RB 1.4 w 1
Ex. Pond to Undisturbed
be filled
Open Space
Exhibit
/ I I GRAPHIC SC. POND 3 \ \ I 0 50 100 3RAPHIC SCALE
CB 1.0 50 100 200 100 Scale
1
1 inch = 100 fe 1 inch = 100 feet
I Offsite mitigation
POND area on back side
of mound
C\ i
I
29,307 sq
RB 1.3
FT
i 1 3.92. sq ft. -10,936 sq
i 'Oe
j j I~ljjjjf' j AIN i -
RENAISSANCE
\ \V GARDENS 1 1 l,'~ YAR
o o Z,
" POND 1 1
1 RB 1.2 -
~1 J
9014 2~ HICKORY
/ '11,1010
Project Number:
Preliminary Area Calculati ,rea Calculations 2007-0342
I dio Sheet Title:
j Total Site Area: 81.5 Ac. 81.5 Ac.
/ Built Upon Area: >24% and >24% and <50%
Undist. Open Space Required: 14.26 Ac. Undist. Open Space Provided: 15.52 Ac. 14.26 Ac. (17.5% of 81.5 Ac.) 15.52 Ac.
NOTE: Areas shown on plan ore approximate. meet or exceed the requirements of the PCS re approximate. The end goal will be to !nts of the PCSWO while p,oviding qualit
treed areas. If there is excess undisturbed of s undisturbed open space an the parcel.
the smaller areas will be removed first to me an spaces. :>ved first to maintain larger undisturbed
I
1 1
1 y L Sheet Number: