20071568 Ver 1_Site Plan_20070917

N~TE~ The design cor~putations used are based upon the contained in "Storrswater Best Manager~ent Practices", pu NCDENR, April 1999, Chapter 3, pages 23-25. ie guidelines
published by
DESIGN REQUIREMENT & ASSUMPTION
The first 1 inch of rainfall in a ~4 hour period which fall falls on
irepervious surfaces Croof & driveway) to be collected, r treated by passing the runoff through a sand filter. retained and
_ _ _
7,200 S~ = 0,165 AC =AREA OF LET
2,700 SF = 0.062 AC =AREA OF STRUCTURE
o i over rvewa rvewa 978 S~ = 0.022 AC =AREA OF DRIVEWAYS ~N LET
er ra e ur ace ur ace 1,062 SF = 0.02 AC =AREA 0~ DRIVEWAYS ~F~ LOT
Henn Nigh Water r
• ; ~ ~ , ti., ~ '•}'r• : '^r S 2,040 SF = 0.04 AC =TOTAL AREA OF DRIVEWAYS
60.00' . y~ «,i t. Ta.
1 , . e ir~en mss, . 3,970 S~ = 0.09 AC =TOTAL AREA ~F WETLAND FILL L
Edge of • ~ :•/ti w • • are er a .
wetland r•.JJ•'~; •r..•••~ ter.:
area to be Sedir~ent Char~ber Design for Roof Area
filled • I• M~~ i~/•„~: "'•1•i a, u e
~ ~ ie 540 cf/acre = 540x.062 = 33.48 cf required
Exist. 3' ~ r Sedir~ent Filter Design for Roof Area;
Contour Sand Filter
i 540 cf/acre = 540x.062 = 33.48 cf required
Unit #1
See Detail 0 o ca e Length Required
33.48/ 1.5' x 1.5' = 14.88 linear feet required (say 1 Sedir~ent CHar~ber Design for Driveway Area y 15.0')
Edge of
House

Proposed o 540 cf/acre = 540x.04 = 21.6 cf required
Dwelling ~ Sedir~ent Filter Design for Driveway Area
110 Virginia Ave N
540 cf/acre = 540x.04 = 21.6 cf required
ra a :t. i ;a I I
Edge of / _ 1
House ~ • I I I I
an er
Wetland Line u e f. t ee ra e
y ;ff. ~ ~ e r • ~N:. • t. ,•.r • 1~ • t~. f. . 't. is ier
!}.i••' ,fit, 'r•'~~ i
~ ~ \ .r .f ~ r f ti j • ~ . ~ , j.• . ror~ oo rains •.s , tia. : ' .j y•. . t w~ .
f . • ' t • • ~
. . ,t 1
Exist. 4' • ~fli.t ' a r~ e r . e~~:;..; y
Contour t ee 4.1~~5 , •.,.•ti •'..,•N 1 :•ti••;t
~ . .1:1.4. ~ \ 1 ,1. I t
Driveway u e i e • 1 • a'
0 o ca e
N M over u e
1 1 1 i e wi i er o
Sand Filter
Unit #2 I
See Detail ~
d ~ 0 o ca e
o#, 3 u e i e
o 07-1568
A /
en
PAY M E N
• ' y a• 1 'a. . RECEIVED
, • . y „ , • ; , ' ' ' . 1• r , ~ • • over u e e
O O ter Cloth
t i .s a a.
O • .ti . 1 a, w L •
E~asGng Dw~lling 1 an i er %
ll0 Virgria Avpnae wi o i over over ~5D
SEP 7 µe7" 20D7 D
~'~W~~~fj +~UAdI
e ir~en are er innber w~~h
wi ra e
PORCH n e ror~ oo rains
Environmental, LLC
0 o ca e
Haymarket Lane
I sleigh, NC 27615
The Bunch's
I
Virginia Avenue
I
60.00' is Beach, NC 2842'8
Virginia Avenue ~ ~ ~ ~ A A I I-l 1
~TormwaTer 'r ivi a n a m e nZ r-'tan
Stormwater Management Plan
o 10 zo Project N 0 0705 Drawn Bye TCR
Grophk Scole
Dates 8/31/0 1/07 Sheets 1 of 1