SW8080931_COMPLIANCE_20150928

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 012�g 3
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
0 COMPLIANCE EVALUATION INSPECTION
DOC DATE
20 i 5
YYYYMMDD

North Carolina Department of Environmental Quality
Pat McCrory
Governor
September 28, 2015
Mr. Neal Paul, Deputy Public Works Officer
MCB Camp Lejeune
Building 1005 Michael Road
Camp Lejeune, NC 28547
Subject: USMC Stormwater Permit Extensions (75 Permits — See Attachment A)
Onslow County
Dear Mr, Paul:
Donald R. van der Vaart
Secretary
On August 5, 2009, the Governor signed Session Law 2009-406. This law impacts any development approval issued by
the Division of Energy, Mineral and Land Resources under Article 21 of Chapter 143 of the General Statutes, which is
current and valid at any point between January 1, 2008, and December 31, 2010. The law extends the effective period of
any stormwater permit that was set to expire during this time frame up to three (3) years from its current expiration date.
On August 2, 2010, the Governor signed Session Law 2010-177, which granted an extra year for an extension of up to
four (4) years.
As a result, 120 USMC Camp Lejeune permits are impacted. Of the 120 permits, 45 permits have previously been
issued extensions and 75 permits have been extended effective today. This is summarized in Attachment A.
If you have any questions, need additional copies of the permit or approved plans, please contact Kelly Johnson with
DEMLR in the Wilmington Regional Office at [phone].
Sincerel ,
'racy Davis, P.E,, Director
Division of Energy, Mineral and Land Resources
GDSlkpj: I11StormwaterlPermits & Proktsl Each permit file
cc: Michael Taylor, Taylor via emar only, [e-mail])
Wilmington Regional Office Stormwater File
Division of Energy, Mineral, and Land Resources
Land Quality Section — Wilmington Regional Office
127 Cardinal Drive Extension, Wilmington, North Carolina 28405
(910) 796-72151 Fax: [phone] • Internet: http://portal.ncdenr.org/web/irt
An Eaual Opportunity1 rirmativo Action Employer -Made in part by recycled paper

y
«0
LO
L(0
LO
�f0
Ln
LO
r
0
r
LO
r_
LC)
r
LD
r
LO
r_
LO
r
c(0
r
Ln
r_
Ln
r
LO
r
u�
r
LL0
r
Lr)
in
r
u)
r
�
r
�
r
LO
r
u)
r
�
r
u0
r
�
Q%
rn
rn
rn
rn
rn
rn
O
rn
rn
0
rn
O)
rn
O
(n
rn
rn
O
�
rn
rn
rn
rn
O
0
rn
rn
N
v
N
N
N
N
N
N_
N_
N
N_
N
N_
N
N_
N
N
04
N
N
N
N
N
N
N_
N
N
N
_N
CA
rn
a)
rn
rn
w
0
rn
w
0
rn
,
rn
rn
rn
rn
1
m
m
m
m
m
m
0
m
m
rn
rn
M
m
-0
-0
-0
-a
-0
-0
-0
Q7
Q)
m
a)
�o
a)
Q)
0
0
0
0
C
C
C
C
C
C
C
C
C
C
C
C
C
!=
C
C
C
C
C
it
C
C
C
C
C
C
C
C
i
}
XC
X
X
-X
.�..
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
](
?C
X
X
X
X
w
w
w
w
w
w
w
w
w
w
w
w
w
w
w
w
w
w
w
w
w
w
w
w
w
w
w
w
m
v
In.
N
r
N
r
N
N
r
N
N
r
N
N
N
N
N
N
N
N
N
N
N
r
N
N
N
r
N
N
0
0
0
0
0
0
0
0
0
0
o
d
o
0
0
o
d
d
o
0
0
0
0
0
0
0
o
d
+=O'
N
N
N
N
N
N
N
N
N
N
N
N
N
N
1V
N
ICE
N
N
N
N
N
N
N
N
N
N
CV
M
dJ
-4
m
M
�
N
M
W
O
O
N
O
O
W
O
O
N
N
O
O
O
M
G
r
N
C
O
M
M
X
Q
h
+
N
N
M
N
Y
00
�
N
t�
N
O
M
N
N
N
r
N
N
W
O
r
O
O
O
O
O
O
O
r
4
O
O
r
q
O
C
r
O
r
r
O
r
r
r
r
r
r
Z
=
G
LC)
(D
0
U7
cD
CD
CD
O
Cp
D
fr
6�
co
t`
w
t+
t+
co00
a_0
m
co00
�
N
O
O
N
O
O
O
O
O
O
O
O
O
O
O
N
O
O
O
O
r
0
0
e�
Q
O
O
O
O
O
O
O
O
`�
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
.EL a
t,�
6
6
c;
6
N
M
(0
6
W
O
r
O
c7
(D
O
cr
t�
A
(A
x
OO
N
N
N
N
O
r
r
r
O
O
T
O
T
T
N
r
T
r
r
p
C7
C]
r
N
r
W
L6
CO
(O
Cb
6)
Lo
M
N
m
N
Cl)
t-
to
I'
m
M
h
t�
O
N
N
Lo
o
(0
t-
r
O
r
O
O
O
O
O
O
O
-
O
0
O
O
O
0
0
O
0
0
O
O
O
O
O
Y
w
m
O
Lo
r
M
0
00
r
0
O
Co
O
W
0
(D
0
r
CO
t`
O
t`
O
M
M
M
r
00
M
-
O
O
r
CDO
_O
O
r
O
0
O
O
0
r
O
r
r
O
O
O
O
r
O
O
O
T
O
(DO
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
V
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
d
M
t•
co
Co
qT
M
N
N
M
O
Iq
N
{")
M
r
M
�
M
M
O
M
0
O
Co
M
M
O
NN
N
N
r
p
M
o
O
O
-.
O
Nii
O
c0
O
N
NN
Or
N
CO
(D_
N
[D
CO)
t�
7
N
[rJ
f:-
LP}
O_
CO
t•
[�
O
CA
N
0
CD
W
I-
r
O
O
O
r
O
O
.O
O
O
O
O
O
O
O
O
O
r
O
O
O
O
O
O
d
"
1°
O
r
N
M
M
0
0
M
W
m
(0
O
O
O
0
0
t`
w
tl-
w
ti
m
w
C6
00
00
00
co
m
0
0
0
0
0
0
o
CD
o
0
0
0
r-
O
0
a
a
o
o
O
O
o
0
0
0
0
0
_
0
O
0
a
0
0
0
0
0
0
0
0
0
0
0
0
O
0
0
0
0
0
0
O
0
0
0
0
N
N
N
N
N
N
CV
N
CV
N
N
N
N
N
CV
N
N
N
(V
N
N
N
N
N
N
N
N
N
_
M
CO
i
O
r
i
_
_
i
r
O
r
T.
i
7
i
r
i
00
i
O
i
O
r
N
0 y
7
O
O
N
N
N
O
O
O
N
N
0
Lo
!`
O
0
0
C7
N
C+
N
A
t-�
Ln
C
A
m
r`
t--
O
N
N
In
O
Cfl
t,
r
-
0
0
0
O
o
00
O
r
0.0
0
0
0
0
0
0
0
0
0
0
0
o
a
T
N
N
r
Cl
r
'-
N
r
r
r
r
r
N
N
r
r
r
r
r
r
r
a�
a..
z
r
O
N
(Q
('ri
N
t-
O
U)
CO
O
O
t-
t-
M
M
00
M
m
r
LD
IT
0
O
r
N
O
M
O
N
N
0
r
r
r
M
(N
r
CD
r
M
t
O
N
O
M
O
M
N
M
N
N
N
q
0
41
I
N
-;t
M
M
00
00
O
C3
O
r
r
r
M
00
N
t--
CO
O
O
r
LC)
0
0
0
CL
o
T
o
o
o
Q
o
0
r
r
o
0
o
O
0
O
CD
Q
o
0
r
0
0
0
0
0
o
0
r
r
C'')
(")
1
0
Lo
u0
u)
u0
w
(D
(D
(D
(D
t-
t`
t-_
t-
t�
t`
m
m
O
0
0
O
0
0
o
0
0
0
0
0
o
O
o
0
0
0
0
0
0
0
o
CD
o
o
0
o
0
0
0
0
m
m
m
co
m
co
co
w
m
00
ao
ao
m
m
ao
m
m
0m
m
as
0
m
w
m
w
m
.o0
IA
(n
in
(A
co
U)
co
w
(!I
U)
co
co
En
(n
co
0
(n
co
cn
co
to
0
00
0
0
w
cn
(n
i
O
r
N
M
IT
U)
(0
t`
00
M
O
r
N
M
'-tU)
0
t-
M
r
N
m
ICT
Liz
M
t`
O
0)
I
f

0
LO
LO
0
Lr)
LO
LO
LO
0
LIO
LO
Lfl
0
0
LO
LO
LO
LIB
LO
U7
Lf)
U)
Lt)
Ltd
U7
Lo
H
L )
uo
r_
C7
O
O
m
m
m
m
m
0)
a)
m
Q)
O
0)
Cl)
a
a)
m
a
C)
m
O
m
m
3)
N
N
N
N
N
N
N
N
N
N
N
N
N
Cat
N
N
N
N
N
N
N
N
N
CV
N
N
N
N
Ci7
—
—
a
a
a
a
a
a
a
a
a
a
a
a
o
a
a
a
a
a
a
v
a
a
n
a
s
rs
a
u
a7�
D
)
-0m
s
-ON
aW
0
am
am
aw
-No
aa�
_0m
am
aa)
-o
aa�
-o
D
aa�
am
'am
-o
a
0
-m� .
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
a)
4)
Q1
N
m
N
N
N
N
43
4.1
N
x
x
-
rc
X
X
X
X
X
X
X
X
X
X
X
X
?(
X
X
X
X
X
YC
X
X
X
X
X
X
X
X
w
w
W
w
w
uj
LLJ
Eu
w
w
W
w
w
LU
LU
LU
LU
w
w
w
W
to
Uj
w
w
w
w
w
d
0
C
T
r
r
r
r
Q1
r
r
T
N
OD
r
OIr-
O
N
CD
N
N
O
N
O
N
O
r
010
N
N
O
N
O
N
O
r
O
NNN
O
O
O
O
N
O
N
O
N
O
N
O
N
O
N
O
N
O
(V
O
N
O
N
O
N
O
N
O
N
O
++
(V
N
N
N
N
N
N
N
N
N
(V
N
N
(V
CV
N
N
N
N
N
N
N
N
N
CV
N
N
N
L
O
O
O
O
O
N
O
O
O
N
O
O
h
0
O
O
O
O
O
O
Y)
O
O
O
O
O
C
O
'Q
M
M
m
I?
C)
e-
M
M
M
O
N
m
m
m
Cl)
m
m
m
O
M
M
(M
Cl)
M
M
M
x
Cl
N
N
CV
N
N
N
N
r
N
N
Q
N
CV
N
CV
N
CV
CV
r
N
N
N
N
N
N
r1
ui
r
r
r
T
r
Q
r
r
r
Q
r
!
r
r
r
r
r
r
r
r
O
r
r
r
r
r
r
r
4)
Z
C
o0
tl0
CD
a0
00
Cn
c0
OJ
m
CX7
w
w
CO
m
m
m
m
m
m
m
m
O
m
m
m
m
m
m
O
r
f"
r-
e�
r
T
r
Y
r
r
r
r
r
O
o
O
O
o
O
O
O
O
O
O
O
O
O
O
O
0
O
0
O
O
O
O
O
O
(D
O
0
i
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
.Q
M
6
6
1-
4
6
V
O
cM
c`')
c0
6
CO
c')
M
N
I,�
w
N
O
z
v
O
CD
x
N
O
N
r
N
(Dr
N
OO
N
O
O
O
O
N
r
r
N
r
O
(�
N
O
r
r
O
N
4
W
f�
a0
f�
O
O
O
O
O
r
Y
cV
N
V
�
M
CO
V
LOh
M
�
t-
r
m
W
O
O
O
O
O
O
r
r
r
r
r
r
O
O
1 01
O
1 O
O
O
O
O
1 O
r
O
O
+"
N
w
CD
O
CO
00
Y
OO
CD
Cd
OO
r
in
r
m
m
0)
O
O
m
0
r
M
M
O
O
O
m
m
O
O
O
O
O
O
CD
O
O
CD
C)
CD
O
O
O
O
O
O
O
Cl
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
tlO
cf7
Y
f�-
O
o+
r•
C'')
O
cb
O
C10
c�
cr
cV
co'
CO
N
Cl
N
CV
N
r
N
O
N
O
r
O
N
r
r-
N
r
O
N
LV
O
r
O
N
O
coOO
i
OOO
r
rNy
O
O
O
O
CO
OOO
O
O
O
O
O
O
O
O
O
8)
M
CO
CO
CO
m
O
CO
CD
M
CO
M
00
M
0O
M
m
m
m
M
m
m
M
M
m
0)
m
m
m
m
16
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
c
O
O
O
a
O
O
O
O
O
O
O
O
o
O
O
O
O
O
O
O
O
O
O
O
O
o
O
O
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
CO
0
r
m
1-
O
e7
CD
M
M
CO
O
CO
M
C'')
N
t-
O
(V
(D
0
V
0
CO
o
N
O
N
r
N
O
N
O
N
O
O
1�
O
N
r
r
N
r
O
C?
N
O
N
O
N
1�-
a0
r�-
m
O
O
a
O
N
N
V
4
M
M
v
ut
1--
m
f+
ti
Q1
O
O
O
O
O
O
r
r
r
O
O
O
O
0
4
O
O
O
0
O
O
a �
d
E
Z
V
LO,
CO
d'
J�,
r
N
CO
(D
Cn
O
CD
c )
O0
(D
1--
O
r�
N
7-
0
N
O
q7
O
V
N
V
r
r
N
M
N
C'7
M
M
M
�
Iq
U')
r
r
O
r
e•-
CO
O
r
r
N
(` i
N
N
ti
N
ti
O
m
O
M
O
m
M
0
O
r
—
r
[*)
d
O
O
O
O
O
O
O
O
O
O
O
Q
r
r
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
0
ao
co
co
co
ao
co
co
w
co
i
oa
co
co
co
co
oo
co
co
co
co
co
co
co
m
ao
co
Lo
L
�U)
cn
U)
co
0
(n
U)
U)
CO
co
U)
U3
V)
co
(�
U)
U)
U)
U)
co
U)
co
co
(�
co
U)
0) O r- N n It U) M f- W 0 O r N M � 0 (Q II- M O O r• N M'q M 0
N CO -M M M CO M M ('') - M Cr) IT'T 'T d' V- �T qT V'T � LO L.c) LO Ui 0 0 0
Ln
w
O
N

�y
LD
Lo
LO
LO
LO
0
Lo
LO
Lo
u')
Lj[7
LO
LO
0
uo
Lf)
M
0
0
10
'0
L3
'D
'Q
'O
-0
-o
'0
ai
r_r_r_
�
m
m
m
m
m
-
m
rn
rn
0')
rn
rn
0)
6)
rn
rn
mrn
rn
0W
O)
rn
rn
a:
N N
X
W
X
W
X
W
X
W
X
W
X
W
X
W
x
W
X
w
'D
-o
_0
-o
'n
-a
-a
-0
-0
-0T
7,
T
�,
�,
>,
2+
T
�+
o
o
a
a
a
a
sn
in
cn
ur
n
u:
in
a
a
-aD
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
>
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
w
w
w
.w
w
w
w
w
w
w
w
w
w
w
w
W
W
w
w
a
a
a
a
a
a
a
a
r�
m
r
r
r
r
r
r
r
N
N
N
N
N
r
N
M
N
N
M
M
O
61
tp
Cp
CD
to
t0
CO
[p
0
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
r
N
r
r
r
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
m
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
.:
r
P
6
O
CD
r
h
00
C�
CO
M
h
A
N
LA
I`
H
CV
r
O
C6
CD
h
C6
m
Crp
NIL
a
M
M
m
N
N
C>
r
r
O
O
O
N
r
r
O
O
N
O
r
r
r
r
N
r
N
r
r
K
N
CV
N
N
N
N
r
CV
N
ti
CD
A
0
A
CA
A
M
O
r
r
m
N
w
w
r•
w
m
m
#ll
r
r
r
O
r
w
O
O
O
O
O
O
r
O
O
O
O
r
r
O
O
r
O
O
r
O
O
O
3
d
z
10
'M
O
O
O
O
I~
coOD
CO
Q
ti
o0
m
c0
co
m
m
0
Lo
N
N
N
r
N
N
N
+'' y
_O
CDO
N
O
N
(DO
N
N
O
O
CD
CD
Y
O
O
_W
O
O
T
CD
T
O
T
p
r
d
T
O
r
p
r
O
N
O
T
p
•-
O
�^-
p
N
CD
r
O
Y
Q
Q
(q
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
(V
N
N
N
N
N
N
N
N
N
N
N
N
'Q 0
N
Lo
I--
v
0
h
M
m
m
M
n
M
N
Cf7
t+
f:
N
r
p
M
co
r-
cp
M
ao
N
M
x
O
O
O
O
O
T
r
O
O
O
N
7
r
p
Q
N
d
r
r
r
r
N
Y
N
T
r
LU
OO
N
LO
4
N
N
N
1~
M
M
O
M
to
M
M
0
r
M
N
CD
CD
r
(D
M
M
O
O
O
O
O
O
Q
O
p
c-
p
p
p
p
r
r
O
O
r
O
O
O
O
O
01
w
R
C}J
M
p
T
p
p
ti
Q
W
CO
W
M
O
M
(DT
M
M
M
m
tO
N
N
M
r
N
N
N
p
p
r
r
r
r
p
O
O
O
O
O
T
O
-
O
O
(DO
O
O
O
O
_
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
no
O
O
O
O
p
p
Q
p
p
O
O
O
O
O
13
N
N
N
N
N
N
CV
N
N
CV
N
Cv
N
CV
N
N
N
N
N
CV
N
N
NC
N
N
N
N
0)r
r
LO
�
I•
0)
1`
00
m
CO
Cl)
I•
It
I`
I`
I`
0)
0)
O
N
CD
I--
OO
co
M
N_
Co
w
C7
CD
T
0
C7
�"^
r
T
(�
00
e-
r
!^
N
N
p
N
r
C7
N
N
N
I-L
(O
C7
v
M
6
M
CM
O
O
N
CV
(D
M
(p
M
M
r
r
O
O
O
T
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
r
O
O
O
m
m
0n
m
o
O
p
o
N
Cp
Ln
CD
Co
I`
f+
I~
CC
00
CO
M
m
N
N
N
N
N
N
N
©
O
O
O
O
O
O
m
m
m
m
m
m
p
m
m
0
CA
m
O
O
O
O
O
O
O
O
O
O
'ED'p
C�
N
N
N
N
N
T
r-
r
r
r
r
r
e--
r
Y
Y
r
-
N
N
N
N
N
N
N
N
N
to
I•
I`
M
CD
C6
m
is
4
NC'
6
M
M
6
N
M
CO
h
00
CD
M
N
M
O 0
O
p
r
Q
p
O
r
p
r
O
O
O
N
CV
CV
N
N
OO
O
N
r
N
N
N—
r
- H
O
N
6
CD
N
N
O
M
r
6
6Lo
T
T
0
O
T
m
m
M
(D
CD
N
m
M
CO
O
O
O
O
O
O
O
O
a
p
Q
Q
O
O
O
Q
Q
Q
Q
C
r
r
T
N
N
N
N
N
N
N
N
N
N
N
CV
T
Ni-
r
r
Y
r
r
Y
r
W
7
C7
00
CD
e-
'T
(•O
r
w
O
m
m
LC7
Q
CO
C O
I-
I-
�t
CO
�-
O
I,
N
m
0
CD
"4-
r
N
Q
T
y
M
O)
T
T
N
r
�
ti
-
LO
N
N
(()
CO
O)
(D
C70
CC]
(p
CV
M
M
to
CD
o
CD
o
O
W
m
m
m
O
O
CV
LO
LO
M
CD
I-
I•
I~
I•
I~
I,
M
M
N
N
N
N
N
O
O
0
O
T
T
m
CT
m
m
m
m
m
m
m
m
Q
m
m
O
O
O
O
O
O
p
Q
O
00
00
CO
(0
CO
CO
CO
M
M
CO
coM7
CO
M
M
a0
00
(XJ
00
CO
CO
CO
00
CO
CO
COCO
CO
7
7
7
7
Cn
(n
(!7
(n
0
W
o
0
0
0
0
fn
U}
V3
(n
0
0
U)
U)
Vi
Cn
Cn
to � � C0 CO CO 0 0 (O (D CD CAD (D Q ti ti ti � ti r
LC1
O
M

b
ry
_0
b
-o
-o
-O
'o
'o
a
b
-a
_0
b
-o
-a
io
-a
-o
-o
7D
'0
_0
-0
b
"oILwL
[7
a�
a�
Cll
al
m
al0"�
0
b
'0
Z7
b
b
�
b
b
b
b
0
0
's3
b
'p
'p
0
"l7
b
o
"�
0
0
_o"CS
D
"�
0
'C7
0
T]
b
0
b
'O
b.------=
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
-r<=C
W
W
w
W
W
W
W
W
W
W
W
W
W
W
w
W
W
W
W
W
W
W
W
W
W
W
W
L-
T
T
T
7,
T
2n
T
T
?.
2
7
7
?,
7+
�+
7,
T
T
T
T
T
7+
T
a,
!,
7!.
G
C
N
V)
N
N
(A
_T
N
N
N
ill
N
U1
N
cn
N
N
N
N
N
N
N
ffi
Ul
fA
Ul
fA
U7
N
in
7
7
3
7
n
�3
C
3
Z)
7
3
D
7
7
3
7
7
V
0
o
o
o
0
0
o
a
o
0
o
0
0
0
0
0
0
o
a
o
o
a
o
a
o
0
0
0
al
al
m
a�
ar
L
m
L
m
a�
L
m
L
w
L
a�
L
m
L
m
al
L
m
L
a�
L
al
al
L
al
L
a�
L
al
L
w
L
m
a�
f^
al
L
al
a�
L
a�
L
L
a
L
a
a
4
0-0-
a
L
a
CL
a
a
d
0-
a-
a
a.
d
a
a
a
c-
a-
a-
n-
a
0-
d 1
d
a.
m
to
to
W
O
O
CO
r
r
r
N
r
O
M
O
r
C7
M
O
O
O
r
O
N
r
r
r
N
N
r
r
r
r
N
r
N
N
N
N
N
N
r
N
N
r
r
N
N
N
N
N
N
N
N
N
N
N
Q
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
++
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
CV
N
N
CV
C �
N
N
N
N
N
N
N
N
tD
1(9
M
CO
t6
CD
CD
r
O
CO
O
O
p
N
O
r
N
(A
N
r
r
M
r
r-
r
r
O
O
'a
r
C?r
N
O
N
r
C' l
C'7
M
r
N
O
M
N
p
O
N
N.
C'>
N
O
M
C?
[' D
N
x
00
r
N
r
C
t�
r
N
N
Cn
tV
M
M
1--
CV
O
Cb
CA
O
0
N
r
r
N
N
N
N
N
IlI
d
r
r
O
r
O
r
r
r
Q
T
O
O
O
r
O
O
r
O
r
r
O
r
r
r
O
C
3
m
z
=
N
N
N
0
O
W
ti
W
co
m
W
W
W
CO
CO
O
M
O
O
O
r
O
O
O
O
O
W
co
O
r
r
r
r
r
r
r-
r
r
r
c-
N
N
N
N
N
N
N
N
r
•' y
O
O
O
O
O
Q
(D
O
Q
O
O
O
O
O
O
O
O
O
O
a
O
Q
O
O
O
O
0
0
I`4
N
N
N
N
N
N
N
N
N
1V
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
'a Li
CD
Cn
co
Co
(o
(D
CD
C')
CA
C)
N
LO
co
N
O
0
c0
f�
co
rh
a
0
O
x
O
r
N
a
r
r
N
.-
N
N
N
N
O
•,
N
O
O
O
r
O
N
7N
CV
(?
r
N
LU
Ca
r
N
r
O
r
-
M
�
v
M
M
a
M
N
N
N
N
W
�
0
O
O
N
N
o
r
0
r
0
r
0
0
0
0
0
a
r
0
0
0
0
r
0
0
0
0
0
0
0
0
mr
O
r
r
r_
a
COO
r
r
r
r
r
O
O
O
O
W
O
O
CD
O
O
O
O
O
O
_
_
_
_
ty
O
N
O
N
O
N
O
N
O
N
O
N
O
CV
O
N
O
N
O
N
O
N
O
N
O
N
O
N
O
N
O
N
O
N
0
N
O
N
O
N
O
N
0
N
O
N
O
N
O
N
O
N
a
N
O
N
07
M
�
M
0
0
CD
N
W
co
0)DO
r--N
IT
v
d
CO
00
C`
0'
a'
{')
r
0
r
N
r
r
CV
N
r
N
O
r?O
O
O
r
N
O
O
r
N
N
1?
r
O
N
00
N
c
N
N
N
r
M
N
N
N
v
W
(D
v
M
N
O
CD
CA
M
N
ti
d
O
O
O
O
O
O
O
O
O
Q
O
O
O
O
Q
O
O
O
Ol
N
N
N
M
CD
CO
�
CO
CO
CO
W
CO
CO
CO
CO
O)
CD
O
O
O
C)
O
O
O
O
0
(D
CD
O
O
O
O
O
O
O
O
O
0
O
O
O
O
O
O
Q
O
O
r
r
O)
M
c
0
0
0
a
0
0
0
0
0
0
0
0
a
0
0
a
0
0
0
a
0
0
0
0
0
0
a
0
'p
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
r
r
CO
C7
ffi
Cr
N
6
CJ
N
CD
CD
V
(D
CL
CM
W
OVl
N
r
N
N
a
r
N
O
O
O
r
r
N
r
N
N
M
O
0
N
N
c0
0')
Q
N
m
,
N
iM
N
N
O
CO
4
CD
O
6
CU
1IL
O
0
O
O
O
0.0
0.0
r
0
0.0
O
O
O
O
ar r
r
r
r
CO
,-
r
r
r
r
r
a
) .
m
3
z
N
Cf)
'-
Q
N
ti
0
M
CO
s-
M
O
M
f-
f-
U)
N
O
UD
M
(D
N
f-
O
N
N
M
Iq
N
-
O
O
r
V
r
O
O
r
0
M
r
Q
N
O
r
O
O
O
r
N
0.
W
ti
m
1-
W
CO
m
N
N
M
M
i—
CO
O
O
O
N
CO
CO
O
m
r
r
Nt
LO
ti
r
M
N
N
N
M
Cfl
ti
h
w
m
co
m
m
m
m
co
W
O
W
0)
m
C)
m
O
O
O
0
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
0
O
O
O
O
O
O
co
CO
CO
CO
CO
00
00
m
co
7O0
co
Co
co
W
QJ
C70
C771�
C>D
Cp
o0
co
co
co
co
cor
co
co
7
�
�
�
�
�
�
7
�
7
7
7
U)
w
U)
co I
U)
U)
co
0
U)
U)
U)
U)
co
I (n
co
I co
O r' (N M v Lo w r- w m p r N M T kn co r� m m O r N M rr it) w ti
r r r" rr r r- T T r - N N N N N N N N N N m M M M M M M M
LM
4-
0

C
O
c
a-
X
LU
a
V
7E
N
Z)
a0
_0
_0m
�
0
�
-
-O
�
-a
-o
-v
0
-a
-o
C
x
iX
-x
N
N
X
Lu
W
X x
W
X
W
X
w
X
W
X
Lu
X
W
p
V'
M
cn
0OO
cn
us
U)
U
O
iq
O
0
.0
.7
0
7
lw
0
,
0
,
N
7
w
7O
Ql
,
2
2
❑_
a
a
a`
a`
a.
a.
0-
cc
0
G
Go
N
N
N
m
N
N
N
ct
O
N
O
N
O
N
O
N
O
N
O
N
C>
CV
O
N
'Q
C7
w
N
O
O
O
O
O
'
x
ui
r
o
0
0
0
0
0
0
3
d
z
0
0
'7
a0
op
op
ap
O
N
ch
N
+ 41
to
O
N
O
(V
O
N
O
N
O
N
O
N
O
N
O
1V
x
00
Q
N
o
0
a
o
0
ui
N
r
h
O
(D
O
h
O
!—.
O
(O
O
N
O
co
O
ate+
W
0
0
0
0
0
0
r
0
�
0
N
N
N
N
N
N
(V
N
w
w
co
O
v
r—
o
N
c6
O
6
O
A
O
6
O
00
N
O
O
O
O
O
Q1
� M
��
6i
OOi
O
O7
O
CO
O
O
C7
O
D7
m
W
QS
O
O
0 N
—
N
Om
O—
O
N
O
O
NJ
6
O
6
N
O
O
cV
O
a6
a
C
r
N
N
N
N
r
N
O
N
IL �
�
d
E
z
�.r
E
r
o
LO
Cr
o
(D
M
V
o
r
o
O
LO
u)
M
0
d
LO
w
CO
0(D
N
r
a
N
"t
m
QO
m
r
coo
co
rn
co
�:
w
�:
w
3:
0
3:
m
�:
w
3:
�:
m
�:
U) I
U) 1
0 1
COU)
I cn I
V)
Ln
0
Ln

cal-�^..� +� •ri.�.,, '��f cc,�,,.�.��v�..y 1 �-�- �w+�ary v�
-d%41 C -V�f"`L' •-G-- .. -
,,.r' +/ J,/jJ j1
-.J :,`. �': � '-�� s!..�.L.ti... ').,..jf 'ed�s'_7 ( k' .. .`�"a""°' 6"'� �% I G,( ((—k� IO
4�.-P
Aq
SEAL r
5 E P 2 6 2008 = 15738

%�ti��'d�...� mot,,.. ✓ .C�'�"��►':'`' /'�]���— ,

L
do 7v ; r�-(o
1 Tr 'Df+-rm ;
Lr4)
A
/67
-- �,) P,0 4 = 15-'4, 9 � �, 0 %.
i2cAe� Cam, �,f /Q - , �;=? ►�L.�_..�.,

75
Q— Qczc,�. o� - - v�r powsD �e�� �`1M S R % lJ A CFt CGS
V z 1/0 60vvx 2
A.

0 4-
C'z'ie6,o4.s0,Q `-�Z
"�C'Z)^ ` s '2j l w T- O
�►� ,+ C� 2 '

r
enl
.�� � 1 '� '-�. � r .,.� � �►�� spa � .� Svc!
y a 4rn I I
by z
tj���-2i�
-r - - -- ---- - —� _ --- --�... -- -
� i }
!! r i

STORMWATER POND CALCULATIONS
COASTAL STORMWATER DESIGN
FOC/ECP AREA NEAR RANGE G-5
MCB, CAMP LEJEUNE
ONSLOW COUNTY, NORTH CAROLINA
AE#08053
SIZED POND AND ORIFICE:
SITE DATA ACRES
TOTAL SITE WATERSHEAD AREA = 185584 SF 4.26
BUILDING AREA = 0 SF 0.00
SIDEWALK AREA 0 SF 0.00
PARKING/DRIVE AREA = 107532 SF 2.47
GRASS AREA = 78052 SF 1.79
TOTAL BUILT - UPON AREA = 107532 SF 2.47
% BUA = 57.9 %
DETERMINE POND SURFACE AREA REQUIREMENT AT PERMANENT POOL
REFERENCE SA/DA TABLE
YES
NO
85% TSS REMOVAL WITH 30' VEGATATIVE FILLER
90% TSS REMOVAL FOR WET DETENTION WITHOUT VEGETATIVE FILTER
X
X
SET PERMANENT POOL DEPTH =
SA/DA LOW (50%) =
SA/DA HIGH (60%) =
IMPER(ACTUAL%) _
IMPERVIOUS LOW =
INTERPOLATED SA/DA VALUE _
REQUIRED SURFACE AREA =
APPROXIMATE POND WIDTH
APPROXIMATE POND DIMENSIONS =
SET PERMANENT POOL AREA AT: 16,875 SF
CALCULATE 1 112" STORM RUNOFF VOLUME
7.5 FT
1.5
1.9
1.82
3,378 SF
75 FT
75 FT
X 225 FT

BUILDING AREA =
0 SF
C=
0.95
SIDEWALK AREA =
0 SF
C=
0.95
PARKING/DRIVE AREA =
107532 SF
C=
0.90
GRASS AREA =
61177 SF
C=
0.20
POND AREA =
16,875 SF
C=
1.00
f
VOLUME = 15,736 FT3 / Z� r3 ` C= 0.768
SET PERMANE T POOL LEVEL AT: 0' STAGE = 16.5 FT ELEVATION
DETERMINE POND STAGE RISE ASSOCIATED WITH 1" STORM
STAGE FT
SURFACE AREA FTz
INCREMENTAL VOL(FT3'
CUMM. VOL FT3)
STORM VOL. FT3
-10
0
0
0
-9
0
0
0
-8,
6699
0
0
-7
7375
6699
6699
-6
8303
7,839
14,538
-5
9263
8,783
23,321
-4
10255
9,759
33,080
(7j
-3
-2
11279
12335
10,767
11,807
43,847
55,654
-1
13423
12,879
68 3
0
16875
15,149
6
0
1
26196
21,536
105,218
21,536
2
34988
14,197
119,415
35,733
3
0
0
119,415
52,128
4
0
0
119,415
52,128
5
0
0
119,415
52,128
6
0
0
119,415
52,128
7
0
0
119,415
52,128
8
0
0
119,415
52,128
9
0
0
119.415
52,128
10
0
0
119,415
52,128
CALCULATE 1 112" STORM RISE
BETWEEN: 16.5 FT & 17.5 FT THE STORED RUNOFF =
REMAINING VOLUME TO BE STORED ABOVE 17.5' CONTOUR =
RISE ABOVE 16.5 FT CONTOUR = 13268119337= 0.68 FT
THEREFORE 1 112" STORM ELEVATIOP 17.18 FT SAY:
STORM STAGE:
19,337 FT3
17.2 FT
0.7 FT
0 FT3
Pr.A E
DETERMINE ORIFICE SIZE TO DRAW DOWN THE 1 112" STORM

1/3 AVAILABLE ORIFICE HEAD = 0.23 FT
SIZE ORIFICE F 4-pAY RAWDOWN
AVERAGE Q REQUIRED = 0.038 FT31S
FROM P. ill -It OF HRM
BASIC ORIFICE EQUATION
Q =
DiSCHARGE(CFS)
CD =
COEFFICIENT (USE 0.6)
A =
ORIFICE AREA (SF) Q=CD"A*sgrt(
g =
GRAVITY (32.2 FT/S2)
h =
DRIVING HEAD FT
SOLVE FOR AREA REQUIRED: A=QI(CD*sgrt(2gh)= 0.01663 SF
ORIFICE DIAMETER (D) = 0.1455 FT APPROXIMATELY= 1.75 INCHES
TRY A 1.75 1N H DIAMETER ORIFICI=Do
CHECK ORIFICE SIZE BY ROUTING THE DRAWDOWN OF THE 1"STORM RUNOFF
DISCHARGE TABLE
h(FT)
Q(CFS)
0.8
0.072
0.7
0.067
0.6
0.062
0.55
0.060
0.5
0.057
0.45
0.054
0.4
0.051
0.35
0.048
0.3
0.044
0.25
0.040
0.2
0.036
0.15
0.031
0.1
0.025
0.05
0.018
0.03
0.014
0.01
0.008
NOTE: h MEASURED TO CENTER OF ORIFICE
Q=(0.6)(PI/4)(Do112)2sgrt(2*32.2*h)
INITIAL HEAD = 0.70 FT
V6
GUI 75 1%
le, �
Ie,v I
APPROXIMATE 1 112" STORM DRAW OWN USING 6 HOUR INCREMENTS
REQUIRED VOLUME = 13,268 FT POND HAS 1 112" STORM VOLUME AT t=0

TIME ELAPSED HR
h FT Q CFS
Q16 HRS
Qcumm
VOL. REMAINING FT3
0
0.70
13,268
6
0.70
0.067
1,453
1,453
11,815
12
0.62
0.063
1,372
2,825
10,443
18
0.55
0.060
1,289
4,114
9,154
24
0.48
0.056
1,207
5,322
7,946
30
0.42
0.052
1,125
6,447
6,821
36
0.36
0.048
1,042
7,489
5,779
42
0.30
0.044
959
8,448
4,820
48
0.25
0.041
876
9,324
3,944
54
0.21
0.037
792
10,116
3,152
60
0.17
0.033
708
10,825
2,443
66
0.13
0.029
624
11,448
1,820
72
0.10
0.025
538
11,987
1,281
78
0.07
0.021
452
12,438
830
84
0.04
0.017
363
12,802
466
90
0.02
0.013
272
13,074
194
96
0.01
0 08
176
13,250
18
02
.00
0.002
54
1 , 4
-
108
-0.00
ERR
ERR
ERR
ERR
114
ERR
ERR
ERR
ERR
ERR
120
ERR
ERR
ERR
ERR
ERR
lo/
"NOTE: (ERR) INDICATES THAT THE STORM WATER HAS DRAINED NEARLY LEVEL WITH THE ORIFICE HEIGHT
WHICH WILL BE THE HEIGHT OF THE PERMANENT POOL.
THERFORE THE 1 112" STORM WATER HAS DRAINED WITHIN THE TIME PERIOD OF 2 - 5 DAYS, AND THE RUNOFF
CONTROL FOR THE POND IS SATISFACTORY.
-r' I �' - I,
0

62,OvIt7-1 �1j
�f ('T��
IGra.',u- c (�UG�ra"(F7
IA In i%6 Z.Uiti
�
J
1 '7, D '
C�
�'� � 0 -2,>
le,v'
ao,s(iZ
2�oIC(OL(
; (da7-
�g,
r
fvg
sss
1
ys-aa;�
1

HECK ORIFICE SIZE TO DRAW E
1/3 AVAILABLE ORIFICE HEAD =
SIZE ORIFICE FOR 5 DAY DRAWDOWN
AVERAGE Q REQUIRED =
FROM P. III -II OF HRM
BASIC ORIFICE EQUATION
Q =
DISCHARGE(CFS)
CD =
COEFFICIENT (USE 0.6)
A =
ORIFICE AREA (SF) Q=CD*A*sgrt(
g =
GRAVITY (32.2 FT/S2)
h =
DRIVING HEAD FT
0,6 FT
=FT3/S
r� Q 1 W
1+0 1 s'
SOLVE FOR AREA REQUIRED: A=Q/(CD*sgrt(2gh)= 0.02807 SF
ORIFICE DIAMETER (D) = 0.1891 FT APPROXIMATELY=
TRY A ll k 2.375 INCH DIAMETER ORIFICI =Do
samumm
CHECK ORIFICE SIZE BY ROUTING THE DRAWDOWN OF THE STORM RUNOFF
DISCHARGE TABLE
h(FT)
Q(CFS)
1.8
0.199
1.6
0.187
1.4
0.175
1.2
0.162
1
0.148
0.9
0.141
0.8
0.132
0.7
0.124
0.6
0.115
0.5
0.105
0.4
0.094
0.3
0.081
0.2
0.066
0.1
0.047
0.05
0.033
0.01
0.015
2.27 INCHES
NOTE: h MEASURED TO CENTER OF ORIFICE
Q=(0.6)(P114)(Do112)2sgrt(2*32.2*h)
INITIAL HEAD = 1.80 FT
APPROXIMATE 45,222 CF STORM VOLUME DRAWDOWN USING 6 HOUR INCREMENTS

REQUPED VOLUME _
kA�0, JT< oqqtt\v lv
45,222 FT3 POND HAS 45,222 CF VOLUME AT t=0
TIME ELAPSED HR
h FT Q CFS
Q16 HRS
Qcumm
VOL. REMAINING FT3
0
1.80
45,222
6
1.80
0.199
4,293
4,293
40,929
12
1.63
89
4,084
8,377
36,845
18
1.47
0.179
3,875
12,252
32,970
24
1.31
0.170
3,665
15,917
29,305
30
1.17
0.160
. 3,456
19,373
25,849
36
1.03
0.150
3,246
22,618
22,604
42
0.90
0.141
3,035
25,653
19,569
48
0.78
0.131
2,824
28,477
16,745
54
0.67
0.121
2,612
31.089
14,133
60
0.56
0.111
2,400
33,489
11,733
66
0.47
0.101
2,187
35,676
9,546
72
0.38
0.091
1,972
37,648
7,574
78
0.30
0.081
1,757
39,405
5,817
84
0.23
0.071
1,540
40,944
4,278
90
0.17
0.061
1,320
42,265
2,957
96
0.12
0.051
1,098
43,363
1,859
102
0.07
0.040
870
44,233
989
108
0.04
0.029
635
44,868
354
114
0.01
0.018
80
-26
0
-0.00
ERR
ERR
ERR
R
13/
"NOTE: (ERR) INDICATES THAT THE STORM WATER HAS DRAINED NEARLY LEVEL WITH THE ORIFICE HEIGHT
WHICH WILL 8E THE HEIGHT OF THE PERMANENT POOL.
T THE 4 22 CF VOLUME HAS DRAINED WITHIN THE TIME PERIOD OF APPROXIMATELY
14 HOURS 4.75 D YS.
� Ow cly4l,el�
04
�'tll-1 2pi+N
` . �lrhw�c-�. s u y- - Iv- e,& a'I ZUu.
131 FT�

1 Y2" S
-m%%pw*
Iq
113 AVAILABLE ORIFICE HEAD =
SIZE ORIFICE FOR 2 DAY DRAWDOWN
AVERAGE Q REQUIRED =
FROM P. 111-II OF HRM
BASIC ORIFICE EQUATION
Q =
DISCHARGE(CFS)
CD =
COEFFICIENT (USE 0.6)
A =
ORIFICE AREA (SF) Q=CD*A*sgrt(
g =
GRAVITY (32.2 FTIS2)
h =
DRIVING HEAD FT
0.23 FT
0.077 FT31S
SOLVE FOR AREA REQUIRED: A=QI(CD*sgrt(2gh)= 0.03322 SF
ORIFICE DIAMETER (D) = 0.2057 FT APPROXIMATELY= 2.47 INCHES
tl
TRY A �;, 2.375 I H DIAMETER ORIFICI =Do
CHECK ORIFICE SIZE BY ROUTING THE DRAWDOWN OF THE i"STORM RUNOFF
DISCHARGE TABLE
h(FT)
Q(CFS)
0.7
0.124
0.65
0.119
0.6
0.115
0.55
0.110
0.5
0.105
0.45
0.099
0.4
0.094
0.35
0.088
0.3
0.081
0.25
0.074
0.2
0.066
0.15
0.057
0.1
0.047
0.05
0.033
0.025
0.023
0.01
0.015
NOTE: h MEASURED TO CENTER OF ORIFICE
Q=(0.6)(P114)(Do112)2sgrt(2*32.2*h)
INITIAL HEAD =
u
0.70 FT
APPROXIMATE 13,268 CF 1 '/z" STORM VOLUME DRAWDOWN USING 6 HOUR INCREMENTS

`REQUIRED VOLUME = 13,268 FT3 POND HAS 13,268 CF VOLUME AT t=0
TIME ELAPSED HR
h FT Q CFS
Q16 HRS
Qcumm
VOL. REMAINING FT3
0
0.70
13,268
6
0,70
0,124
2,677
2,677
10,591
12
0.56
0.111
2,392
5,069
8,199
18
0.43
0.097
2,104
7,173
6,095
24
0.32
0.084
1,814
8,988
4,280
30
0.23
0.070
1,521
10,508
2,760
36
0.15
0.057
1,221
11,729
1,539
42
0.08
0.042
912
12,641
627
48
0.03
0.027
582
13,223
45
54
0.00
1007
156
13 379
-111
ERR
R
R
R
66
ERR
ERR
ERR
ERR
ERR
72
ERR
ERR
ERR
ERR
ERR
78
ERR
ERR
ERR
ERR
ERR
84
ERR
ERR
ERR
ERR
ERR
90
ERR
ERR
ERR
ERR
ERR
96
ERR
ERR
ERR
ERR
ERR
102
ERR
ERR
ERR
ERR
ERR
108
ERR
ERR
ERR
ERR
ERR
114
ERR
ERR
ERR
ERR
ERR
120
ERR
ERR
ERR
ERR
ERR
`*NOTE: (ERR) INDICATES THAT THE STORM WATER HAS DRAINED NEARLY LEVEL WITH THE ORIFICE HEIGHT
WHICH WILL BE THE HEIGHT OF THE PERMANENT POOL.
THERFORE THE 13,268 CF VOLUME HAS DRAINED WITHIN THE TIME PERIOD OF APPROXIMATELY
54 HOURS OR 2.25 DAYS.
V�) lv We vwS��OCA#,� 0,
5,

ay ar+ �r.� = ,. J E2.3 l
r-
Cv,Zrd+a ier 1 j
&'x(� x 2.Y 4irn461
06YL A914 t T7�
r
` �A
r Qe7p7 Yk

6os-ax X 60 A, �
%-; � ,s pe lb rV),f e,)
GDa16-1..,. ,5

E
ow / f 4 T .S
C
CS
��� �
o� 1 �qc�s � �`�
� �,�,►, .�
�%�
;AFT
V ��� 3
6�Fr
f
/• � 4 �- -"'Nje�, yvivi'�-. (r2 wtli kse,
4---Top Grp. I T
I,5�4
>� f /"

?9
--fix Pog
�1 r�i
r<i� • �� -7, oI
-A9
71-7
4 d,
r7

)--q5 1_1
a,Tr�,
L- fiV-1 17 wrn�
& 0
2
0 "4/
t CIO
�O)S3 Z
Q'S�
�-�- w�f-;),v�,rr�r
� �.��n•�p11-r-,��,:r,� a71 nJ �c�lr� _
4 _

-57d ,.
r
i
?r bXIW.L,2TOa),Izg =—y
4Lq?lV S---V dV O5 Z 0ja�I w vkRd
2

�'6�� /� � 2��«��
A� ;;~ /\//`;�>
. . ��~ ^
. �_�� � � ~� \
/ �� � •3 . ' % � .
,�. � < y .
\? .� � � 2� � � 2� \
v���.���, .:+
�* ., i.% �
�� � `� �� � �
.� . &� �,� �..
��E.\��±. «�>�
r «22
.\S6 %
t26K

I

WLP ECS CAROLINA$ LLP
awRouwws- Geotechnical • Construction Materials • Environmental • Facilities
September 11, 2008
Mr. Kevin Avolis, F.E.
Avolis Engineering, P.A.
P.O. Box 15564
New Bern, North Carolina 28403
Re: Infiltration Evaluation
FOB/ECP Area
Camp Lejeune, Onslow County, North Carolina
ECS Project No. 22.1438613
Dear Mr. Avolis,
ECS Carolinas, LLP (ECS) recently conducted an infiltration evaluation for the proposed
infiltration area at the above referenced site located off of Highway 172 on Camp Lejeune,
Onslow County, North Carolina. This letter, with attachments, is the report of our evaluation.
Field Testing
On September 9, 2008 ECS met with Mr. Kevin Avolis with Avolis Engineering on site in order
to provide the requested test location. ECS then conducted an exploration of the subsurface soil
conditions at one requested location shown on the attached Site Diagram. The purpose of this
exploration was to obtain subsurface information of the in place soils for the proposed
infiltration area. ECS explored the subsurface soil conditions by advancing one hand auger
boring into the existing ground surface at the requested boring location. ECS visually classified
the subsurface soils and obtained representative samples of each soil type encountered. ECS
also recorded the seasonal high water level (SHWL) observed at the time of the hand auger
boring. The attached Infiltration Evaluation Form provides a summary of the subsurface
conditions encountered at the hand auger boring location.
The SHWL was estimated. at the boring location below the existing grade elevation. Below is a
summary of the boring location. The surface elevation was provided by Avolis Engineering.
Location
SHWL
Surface Elevation
1
36 inches
19'
ECS has conducted an infiltration test utilizing a compact constant head permeameter near the
hand auger boring to estimate the infiltration rate for the subsurface soils. Infiltration tests are
typically conducted at two feet above the SHWL.
7211 Ogden Business Park • Suite 201 • Wilmington, NC 28411 • [phone] • Fax [phone] - www.ecsliniited.com
Asheville, NC • Charlotte, NC • Greensboro, NC • Greenville, SC • Raleigh, NC • Swansboro, NC Wilmington, NC
* testing services only

Infiltration Evaluation
FOBI CPArea
Camp Lejeune, Onslow County. North Carolina
BCS Project No. 22.14386B
September] 1, 2008
Field Test Results
Below is a summary of the infiltration test results:
Location
Description
Depth inches/hour
1
Tan fine SAND
12 inches 15.0
Infiltration rates and SHWL may vary within the proposed site due to changes in elevation and
subsurface conditions.
If you have any questions regarding this report, please contact us at [phone].
Respectfully,
ECS CAROLINAS, LLP
K. Brooks Wall
Staff Geologist
Attachments: Figure 1- Test Location Plan
Infiltration Evaluation
2
M (34-�
alid M. 5obh, P. E.
Principal Engineer
NC License No. 22983

� s ,
r
r
/ y
r
Ell
r� C `•g 1�'' ' ask yr
f � p �� �1 is •� ,';�.-r;',/r, -- _ y .-C-; — -�i -._
I Am
- -
- IJB
n5i1Y,•a72• � �°
TEST LOCATION
FOB/ECP Area
Marine Corps Base
Camp Lejeune, NC Figure 1-Test Location Plan
Provided by: Avolis Engineering, Inc.
ECS Project No. 22-14386-B ���
September 9, 2008 ;
KBW CARQ NA's

Infiltration Evaluation
FOB/ECP Area
Camp Lejeune, Onslow County, North Carolina
ECS Project No. 22.14386B
September 9, 2008
Location Depth Soil Description
1 0-10" Grey fine SAND
10"-48" Tan fine SAND
Seasonal High Water Table was estimated to be at 36 inches below the existing
grade elevation.
Infiltration Rate: 15.0 inches per hour
Test was conducted at 12 inches below existing grade elevation