SW8960809_HISTORICAL FILE_19980918

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
DOC TYPE ❑CURRENT PERMIT
❑ APPROVED PLANS
�? HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD

0 1(012)
State of North Carolina
DeparttiientgFI rVironrnent and Natural Resources
Wihington Regional Office
James B: Hui t,'C'overnor Wayne McDevitt, Secretary
FAX'
CO:TO: 13 Gm
co:,.
127 Cardinal DrivcXlw"alon, Wlimtngton; N:C.484US-364STtle h,.e 010) 395-3900 Fox [phone]
;An -Equal Oppoctunity'AMnr4a6we Aee16n Employwr . .

State of North Carolina
Department of Environment and Natural Resources
Wilmington Regional Office
James B. Hunt, Governor Wayne McDevitt, Secretary
Itate: I 98
1:
Q.
FAX
�-
REMARKS: &2r a.
FAX COVER SHEET
No. Of Pages:
From: Liao42 L oa4 5
CO:
FAX#: [phone]
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 Tclephonc [phone] Fax [phone]
An Equal Opportunity A(rirmative Action Employer

a
RECE11VEID SEp 1 6 1
996
STROUD ENGINEERING, P.A.
HESTRON PLAZA TWO
151-A HWY, 24
MOREHEAD CITY, NORTH CAROLINA 28557
[phone]
September 10, 1998
Ms. Linda Lewis
NC Dept. of Environment and Natural Resources
127 Cardinal Drive Ext.
Wilmington, NC 28405
RE: J.M. Davis Convenience Store - Stormwater Project No. SW8 960809
Highway 24 and Hibbs Road - Carteret County
Dear Ms. Lewis:
Your July 29, 1998 letter to Mr. J.M. Davis regarding the above referenced stormwater project,
raised a question about the length of the vegetated filter for overflows from the infiltration basin.
We found the actual length to be approximately 46 1f from the end of the FES to the centerline of
the ditch along Highway 24 rather than the 50 if shown on the plans. This is apparently because
the 18-inch RCP out of the control box is approximately 8 If long rather than the 4 If shown on
the plans. 1t should be noted that additional filtering is provided by the ditch along Highway 24
before any water leaves the vicinity of this property.
Please review this matter and advise us should you find that the filter as constructed is not
acceptable.
Sincerely,
Rona d D. Cullipher, P.E.
cc: Mr. J.M. Davis
Mr. Scott- Cunningham,'W.F, Parker Construction Co.
FILE: PM-843
107 COMMERCE ST.
SUITE 9
GREENVILLE, NC 27858
[phone]
3961 A MARKET ST.
SUITE A
WILMINGTON, NC 28403
[phone]
HESTRON PLAZA TWO
151-A HWY. 24
MOREHEAD CITY, NC 28557
[phone]

NOV-22-96 FR' 4:22 Ply STROH EUSINEIRING FAX 93, 9192474C98 ', 1
STROUD ENGINEERING; RAI
HESTRON PLAZA ONE
SUITE 102
MOREHEAD CITY, NORTI4 CAROL1NA.=4e :' �'�0,
[phone]
Facsimile!,�'rari �mittai
Cover Sleet
From; �o !:% /.. ✓`;`iV7
To:
Attention:ivFr
Subject: r9 V!::
This is transmitted as checked' below:
As Discussed As Requested
For Your Review CI For Your Information
I3 For'Hids Dui
Comments:
'dotal number of pages (lncludiug:.covei' sheet): '
Our facsimile number:. (919): ,247
107. COMMERM ST,
SUITE 8
(3REEW&LE , NC 27868
' MIS) 758.8352
8981 A.AAAAK�'i. SY.
:SUITE A,.'.: .
VALMlNGTONi NO 20403
HEBTRGN PLAZA ONE
.0,0T'E 102 '
MOREHEAD CIT; NO2=7
(9S9) 247-7479

NCIV-22-96 FV 4�22 PM STROUE E)1JINKPING FAX No. 91C2474EH
U.S. FOUNDRY & MANUFACTURING CORPORATION
K_k�URB
Specify lettering if required,
2 W4
�46' �-
•1'�+fPFfpQ'IOLE
3i 9r$
36 3A
ueFe015 GRATE MAY BE WS ALL40 VV TH VAAE
RTC FOR LU7 OR FV0fT -Ur
23A -1 I r=
IMT� LOAD
NU MA RATIV AFieq VIEIS MT wFjwff
MIS HEAVY DUTY 250 245 aw
W2 HFAMMY 370 2X 865
.44 ..�...�.�
4-1'VEHT-4iQ4M
35 sta
VAMP GRATE
USF 5135•a015
GEORGIA D.Q.T.
1013
STANDARD
TO ORDER CURB PLATONLY SPECIFY USF 5120
o ORME ACCESS COVER ONLY SPECFY USF COVEn AL
TO ORDER FRAME ONLY SPECIFY VSF 4612
vUSA.;.5.138�.VALLEY�G�J'TT�l�NIN�ETF�i�M� AND6��: G-RAT' SET
1. Restricted gate opening,
2 Steel angle frame wkh Cast
iron grates.
3, Speedy palvanizod or paintedt
i4
ilia �y
�
frame,
14Ji
2A
ANCHOR MUDS
m
24
23MG
` ,-
2a
2 V2
WALLY, WELFORD AND NALVEN
6T'ANDARD
TYPE H AND J INLET
6MIE: LOZ FLOW MATE TOTAL
Ii1W EN AREA YEW WEIQW
at5a HEAVY OM M 220(ssp 260
ORDER 1 PO.OF THIS GRATE SET SPECIFY USF M2
11�
—ALWAYS SPECiFY"USF NUMBER —

State of North Carolina
Department of Environment, Health, and Natural
Wilmington Regional Office
James B. Hunt, Jr. DIVISION OF WATER QUALITY
Governor WATER QUALITY SECTION
October 28, 1996
Mr. Dion Viventi
Stroud Engineering
Hestron Plaza One, Suite 102
Morehead City, North Carolina 28557
Resources
Jonathan B. Howes
Secretary
Subject: ADDITIONAL INFORMATION
Stormwater Project No. SW8 960809
J. M. Davis Industries
Carteret County
Dear Mr. Viventi:
The Wilmington Regional Office performed a site inspection on October 25, 1996, to verify the
soils information for the infiltration system proposed for the project, J. M. Davis Industries. The site was
determined to have a seasonal high water table approximately 30" below the existing ground elevation of
31. Therefore, the bottom of the infiltration basin must be raised (or filled in with clean sand) to elevation
30.5. As described in item 5 of m� October 24, 1996 letter, when a range of values is presented, the value
that will yield the most conservative answer is chosen. Please submit revised plans and calculations.
Please note that this request for additional information is in response to a preliminary review. The
requested information should be received by this Office prior to November 28, 1996, or the application
will be returned as incomplete. The return of a project will necessitate resubmittal of all required items,
including the application fee. If you have any questions concerning this matter please feel free to call me
at [phone].
Sincerely,
Ms. Linda Lewis
Environmental Engineer
JBB/arl: S:IWQSISTORMWATIADDINF01960809-2.00T
cc: Linda Lewis
Central Files
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone [phone] • Fax [phone]
An Equal Opportunity Affirmative Action Employer

State of North Carolina
Department of Environment, Health, and Natural
Wilmington Regional Office
James B. Hunt, Jr. DIVISION OF WATER QUALITY
Governor WATER QUALITY SECTION
October 24, 1996
Mr. Dion Viventi
Stroud Engineering
Hestron Plaza One, Suite 102
Morehead City, North Carolina 28557
Resources
Jonathan B. Howes
Secretary
Subject: ADDITIONAL INFORMATION
Stormwater Project No. SW8 960809
J. M. Davis Industries
Carteret County
Dear Mr. Viventi:
The Wilmington Regional Office received new information for the Stormwater Management Permit
Application for J. M. Davis Industries on October 9, 1996. A preliminary review of that information has
determined that the application is not complete. The following information is needed to continue the
stormwater review:
,f 1. Provide some method of distributing the runoff evenly within the basin, in accordance with
the enclosed detail.
�2. Provide a 50' vegetated filter for the bypassed runoff in accordance with the enclosed detail.
The existing ditch does not count as vegetated filter.
3. The plans show both the bottom and storage elevations as 30.25.
v"4. Delineate all wetlands on site, or note on the plans that none exist.
l/ 5. When a range of values is presented, the State defaults to the value that will yield the most
conservative result. For example, if the Seasonal High Water Table is judged to be 30"-36"
below the existing ground, the State will use 30" to determine if the bottom of the
infiltration system meets the 2' separation. The same applies to a range of drawdown rates.
6. Vincent Lewis and I will visit the site on October 25, 1996 to verify the soils, infiltration
rate, and SHWT information submitted.
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 0 Telephone [phone] + Fax [phone]
An Equal Opportunity Affirmative Action Employer

Mr. Viventi
October 24, 1996
Stormwater Project No. SW8 960809
Please note that this request for additional information is in response to a preliminary review. The
requested information should be received by this Office prior to November 24, 1996, or the application
will be returned as incomplete. The return of a project will necessitate resubmittal of all required items,
including the application fee.
If you have any questions concerning this matter please feel free to call me at [phone].
Sincerely,
Ms. Linda Lewis
Environmental Engineer
3BB/arl: S:IWQSISTORMWATIADDINF01960809.00T
cc: Linda Lewis
Central Files
2

STROUD ENGINEERING, P.A.
HESTRON PLAZA ONE
SUITE 102
MOREHEAD CITY, NORTH CAROLINA28557
[phone]
Ms. Linda Lewis
NCDEHNR Division of Water Quality
127 Cardinal Drive Extension
Wilmington, N.C. 28405-3845
RE: J. M. Davis Industries, Carteret Co., N.C.
Stormwater Project No. SW8 960809
Dear Ms. Lewis,
�.�[nit,
r�
NOV 2996 1'
November 8, 1996
With regard to the above referenced project and your letter of request for additional
information dated October 24,1996, the following items have been addressed:
1) A flow spreader has been added to the revised plans in order to distribute the
runoff more evenly within the basin as requested.
2) A 50' vegetative filter for the bypassed runoff has also been added to the
revised plans as requested.
3) The correct bottom and storage elevations are shown on the revised plans
reflecting changes involved with #5 below.
4) A note stating that no wetlands are known to exist on the site has been added
to the revised plans as requested.
5) We are in receipt of your notification letter dated October 28, 1996 and have
raised the bottom of the infiltration basin to elevation 30.50 MSL in order to
provide two feet minimum separation from the seasonal high water table in
accordance with your site investigation information.
Please find enclosed two copies of the revised plans and one copy of my vegetative
filter velocity calculations for your review and approval, If I can be of any additional
assistance please let me know.
Sincerely,
Dion J. Viventi, E.I.T.
DJV/kw
cc: J. M. Davis
FilcA9/Lewis2.txt
107 COMMERCE ST. 3961 A MARKET ST. HESTRON PLAZA ONE
SUITE B SUITE A SUITE 102
GREENVILLE, NC 27858 WILMINGTON, NC 28403 MOREHEAD CITY, NC 28557
[phone] [phone] [phone]

M100UC17011 Mqk Shlgtl2M I IN MI nem.:.W..Grokm Lim01471: 7n Nw PIV4 IOLLFRLE I MOMIV0

STROUD ENGINEERING, P.A.
Hestron Plaza One
Suite 102
14Af1DC41GAr) f ITV' AIf)DTU PADni INIA ')O;r-7
JOB
SHEET NO. Z OF _
CALCULATED BY Z) DATE %n
PRODIIOE A41(Sgk SkM) 2M41P&4 nrar: w k, SMIM Nci 01471. 79 0fM PHONE IOFE FREE 14M226-M -

- - - •gw.o.. - ..._-,.r - ' - - � - r'-.-..:-�. :. ..-ram
DEPTH -DURATION -FREQUENCY TABLE
by
H.R. Malcom, P.E.
DEPTH -DURATION -FREQUENCY TABLE
by
H.R. Kalcom, P.E.
C.E.Dept,
HCSU
C.E.Dept,
NCSU
,
LOCATION: -------- >Charlotte,
NC
Raleigh, NC
LOCATION:
-------- >Wilmington, HC
Raleigh, NC
Return
Period -->
Return
Period -->
DURATION
2-yr'
5-yr---10-yr
25-yr.,"
50-yr
100-yr
DURATION
"r 2=yr
_- 5-yr 10-yr
25-yr
50-yr
100-yr
[in]
[in]
[in]
[in]
[in] --
[in]
Uhl
IN [in]
[in]
[in]
[in]
5 min
0.47
0.54
0.60
.0.69.
0.75
0.82
5 min
0.49
0.55 0.60
0.68
0.74
0.60
10 min
0.76
0.89
0.99
1.14
1.25
1.36
10 min
0.84
0.96 1.05
1.19
1.30,
1.41
15 min
0.97-
1.14
1.26
1.45'
1.59
1.74
15 min
i.09
1.24 1.36
1.54
1.69
1.83.
30 min
1-.31
1.61
1.82
2.13
2.37
2.61.
30 min
1.58
1.90 2.12
2.46
2.72
2.98
60 min
1.67.
2.10
2.41
2.84
3.18
3.52
60 min
2.10
2.58 2.92
.3.41
3.80'
4.18
2 hr
1.87
2.35
2.68
3.16
3.53
3.90
2 hr
2.36
2.93 3.34
3.92
4.37 -
4.82
3.hr
2.07
2.59
2.95•
3.47",
3.88
4.29
3 hr
2.63
3:29 3.76
4.42.
4.94
5.46 "
6"hr
2.59
3.20
3.64
4.28
:4.77
5.26
-6 hr
330
4.20 4.82
5.71
6.40
7.09.
12' hr '
3.D4
3.75
4.26
4.99
5.56
-6.13 -
12' hr
3.90
, 5.00 " 5.77
6.86
7 - 7.70
8.55
24,hr .
3.50
4.31
4.88
5.71
.,"• 6.36-
7.00
24.hr
4.50
5.81, 6.72
8.01
:9.01
10.00.
INTENSITY -DURATION -FREQUENCY
TABLE
INTENSITY
-DURATION -FREQUENCY TABLE
LOCATION: ----• --->Charlotte,
-------------
NC°.. -
-
LOCATION:•
------ r->uilmington,,-HC..
____-__-_-_--__
Return
_-------------
Period,-->
:..
----------"
_= __-__--_-
----_----__--_
-Return
Period -->.
_
-_
DURATION
; 2 yr ::
-
i yr _
--
l0-yr
-_
25 yr
- --
, 50 yr ,;100-yr
-----
v
--- -----
DURATION "
- ---
, . ".2-yr 5ryr-.'r.:`."10.yr: •:;,
25-yr
: 50 yr 10D yr
" ;Lin/hr] : Ciri/hr] •,.:"
[in/fir] " [inAr] . [in/hr] :fin/hrl
.: [iMhr]'
[in/hr] ': [in/hr] `: `Ein/hrl
[in/hr]
Lin/hrl
n^
5 m--
__ _______________
5:64-'=Y 6 54'
7:22
_- - -_--- -
B 24 9 04. `:,'y9.84 ..
=-_-__-----_--__-____
- 5 "min"-
Y5.88
_-_-_---- --_-=
r6 63 Y�
----_-
;'8:15
< 8^87
-
t 9_.60-- :
10'miri
G".59;
,45.37 -
S-95 6 82 :;T.50=:.'
:8.18
1D min.
5.06
S.lb, 6,30
7.13
:7,79
"'8.45"
15 min
3.88
4.55 .
5.05..
5.79 ;"
°•', 6:38
6.9b
: "15 min
4.3b
4.97: 5.45
6.1T
".:. 6.75 '_
" 7.32 '
30 min :
2.63
: 3,22"
3.65"
- ' 4,26'.::;'4.75
" 5.22
30 min
3.17
3.79 4.25
4.92.--'_
5-44..
5.96.
60 min -
1.67.:. "
. 2.10
2.41
. 2.84.` . 3.18
- 3.52.
60 min.
2.10,
2.58 2.92
3.41
,": `•-3.80"
4.18
2'hr
_0.94..
'. 1.17
1,34
1.58":,e
1.77
..1.95,".
•2 hr:
1:18
1.47 1.67
.1.9b"=:.
2.19 -
.;2.41..
3 hr
0:69"_..
0.86
0.9$
1.16--..':=1.29
-
1.43..
3 hr.
0.88
1.10 1.25
1.47:.'=":
1.65.
: 1.82 •.'.
. .
6 hr
0.43.
0.53"
0.61
0.71
0.79-
'0.88
6 hr
0.55
0.70 0.80
0.95
1.07
1.18
12 hr-
0.25
0.31
0.36
0:42'
.0.46
0.51
12 hr.
0.33
0.42 0.48
0.57'..
.: 0.64 ':
0.71
24 hr.
0.15 .•
• 0.18
-0.20
0.24
':' 0.26
0.29
24 hr
0:19
0.24 D.28,
0.33
: ,:,: 0.3$_
.r. 0.42 '
INPUT' DATA:
.. `"
-
IDF. Equations;....-
INPUT DATA
r 'IDF. Equations:.
I = 9
-- ---- --
'--------------
for.5<T<120 min
--
---•-•-_----===_=f
---
or 5<T<120
min
LOCATION: -------- >CharLotte,
HC
-------------------------
LOCATION:-------->flilmington,
NC
Duration 2- r P-i00-
y r P
Source
- -�
-------------------
------_-
----- -..---
buretion?-
2-yr P 700-yr P Source "
-y
[in]:..
..Lin]
:.:,_.`: 2
.'::.130':
18""
[in]
[iN
2._
:.:171."
24.-
-- ---- -------------------------�
-= ��-0.47,
--=--
---
:5.
166-..
21- -
__=_____________---_____=___-_______-___--_
-5
5.-
: 219
28
5rmin
0.82 NOAA HYDRO-35-----
1D
197-:-
2Z
min
0.49--
0.80 HOAR HYDRO-35.
-10
25
(0
15 min'-
0.97.'
1.74 NOAA HYDRO-35 ".
25
228
23.
15 min
1.09
1.83 NOAA HYDRO-35-
25
300
32
60''min
1.67
3.52 NOAA HYDRO-35
50-
256
24
60 min
2.10
4.18 HOAR HYDRO-.35
50
338..
33 Z
24-hr .;. .. .-
3.50
7.00 USl18 TP-40
_,-_ - 300.
284 :: ..
24.-
24-hr
4.50
10.00 115E 8 TP-40
100
376.
34
";
"
<----
DATA
>
..
�_
---
----
-`77-' DATA ---->

sN fOFq
v

Exhibit 7
Minimum slopes for ppe'selection.
Minimum slope required to maintain stated.minunum
velocity at full flow.'.,
Material
Concrete Concrete
Corr Md:... Corr. Md..
'Application . •
Storm <Sanitaxy,
Storm 'Sanitary:.'
`Manning n
0.0I3 - ; 0:013` :, ,....
0.024 0.024::.
Min V (ftJsec) 3 �'p 5. 3. 2
3 r 2..
pipe Diameter (in)
Minimum Slope
15.
Q.00325 0.00144
..0.01107 � . 0.00492 ...
'`
--lb- 18 '
0.00255 ;.`. 0.00.113 : `
: 0.Q0868 0:00386 ::
21 *
0.00207. 0:00092::.:':::.
0.00707..:. 0.00314::
24;
.. 0.00174'.;.. :..'O.p0077
0:00592 ..:0.00263
27` *.;
0:00148.:.: 0:00066;
0.00506 :: 0.00225 ;;;:::
: .
30::...
0.00129;-. °
0:00439 0:00195
•
33: *.- •
0.001'1'4'::.. Q000504 r
000387 0.00172
36 .`
" 0.00101 : 0.00045
.0:00345 0.00153 =
42".'
0:Q0082.. 0.00037�
.0.002$1
_ ;0:001251,
,
48
0.00069 :..000031
::_0.00235 ::0.00104
i
54
0.00059. ; . }:O.Q0026
.-.0.00201 :O.QQQ89
. ' 60
0.'00051 '' 0:00023
` 0:00174 .:: 0:00077
66.:
0.00045 0:00020:
0:00154:.;. 0.00068;
72
0.00040 Q:00018;:
'.0.00137 '.. .0:0Q061 :.
_
* Non-standard in some markets.'.,':
:.Exhibit $..
Abbreviated Table of.Values ffManning Roughness Coefficients
:.
n•.
!
Description of Lining
0.013
Reinforced concrete`pipe ,.:
Comigated metal pipe .;
0.024
Concrete, trowelIed:.fin` h',' :,-'t
'' 0.013::.::
i
Concrete, float finish
0.015 '
Stxeetgutter or paved channel -'
:' 0.015 --
:.Earth; straight and unafortn
: 0.022 .�
:
Grass -lined sw:iles
'
0.030':-.�'
r
Unmaintained Urushy-:channel:_''
0.080:
Stone -lined ctiarinel {4-uich)
0.02$:,.:
Stone-aedcha.nn'e1i (6=in)
0.030.
Stone=linedch'anriel (9=in)
0.032
Stone -lined channel (12 1h)
0.034
'
Stone-linedchannel (15 in)
-in).;:::.;.
A.035
Stone-lined;,chaiinel'(18
0.036

Ekhibii 9 ..
Best Hydradci ' Secdon Coefficients
M
Cm
;:. ;.k-.' ,
Comment,:,,,-`
0 /1
.0.790
2:QQ0...;;, ;..
Vertical sides
0.5 /1'0.833
1.136
0.577 /1
0.833
:::1:155:=:' , :`
60-degree sides
1 /1 _
.0.817.
0.828.`° :_:
45'degree.sides
1.511
0.775'.
-'0:606:::
2'/l
0.729
2:5;/1
0.688
---"-3 /1 .'
0:651
, 0:325.:
:Steepest to mow;:.- .
3:5:/.1-
0.622:
4/1
0`.59.5:.
0:246
0.551'' ...
0:198
611-
0.518
7 /1
0 490
W1.42:
8 /1
---- . 0.'467
9/1
.0.447 .
' ;; 0:111.
.10 /1
.0.430
11 /1
0.415
:. 009,1';`:;.,
12 /1
0,402

YH .;F76f?
Exhibit 10
Suggested Maximum :'Velocities for Various Channel Linings
Description :-.;;:_ Allowable:
Velocity, (ft/sec)
Native linings
Fine sand "2.5'
Sandy loam::: : 2.5
Silt Ioam ' 3.0
- Ordinary fii �i Ioani . ,:. ' 3.5
Fine'gravel,': ;: .'° ..'. 5.0
Stiff clay::. 5.0 .
'
Grass
-Uncdrta.in maintenanceI..:.
Good cover, proper' maintenance .. 5.0. -��. ...
Quarry;Stone, .. .
Equivalent
: Allowable.Velocity..(ft/sec)
Spherical
: far st ifed'sideslope:
Diameter
{inches)
1/1 :'1 5/1: . , :'` ... 2/I 3/1
4II ' - :
' .12/1
-- - .6
: .79.0
6.0:-' :'-'.7A2--':;;..:;: ::7.7 8.0
8:4
9.
7.2 $ 9 9.4� . .'9.8
I0.2
:10.8
12
8.5 :''10:2 ::': 10.7 :.11.2 _
11.8 ..
12.5.
4 15
9.5 I'LS::''::`, ...: ;;:12A:'; :12.7.''
11 .
' 14.0
18
10.7 •:12.6`:' _°:. ;;13.2:.. 14.Q':..
14.4
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� STATE o
y,nu
State of North Carolina
Department of Environment, Health, and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr. DIVISION OF WATER QUALITY Jonathan B. Howes
Governor WATER QUALITY SECTION Secretary
September 5, 1996
Mr. Ron Cullipher, P,.E.
Stroud Engineering
Hestron Plaza One, Suite 102
Morehead City, North Carolina 28557
Subject: ADDITIONAL INFORMATION
Stormwater Project No. SW8 960809
J. M. Davis Industries
Carteret County
Dear Mr, 1p er:
The Wilmington Regional Office received a Stormwater Management Permit Application for J. M.
Davis Industries on August 14, 1996. A preliminary review of that information has determined that the
application is not complete. The following information is needed to continue the stormwater review:
1. In order to qualify for a detention pond, the results of a chlorides test must be provided
indicating that the level is less than 500 ppm at a point in the receiving waters that is at least
112 mile from the proposed outlet, as the crow flies. Additionally, the test must be
performed after 3 days without rain. If the test confirms that the level is less than 500 ppm,
then the following information for the detention pond design must be submitted.
2. The forebay weir elevation is 3' below the permanent pool. Please raise this elevation to
somewhere between the permanent pool and the design pool elevations. The depth of the
forebay should be between 2 and 4 feet, enough to allow 20% of the pond's storage volume
to be held there. Provide a detail.
3. Add dimensions for the building, parking, drives, and sidewalks.
4. Please add the required 6:1 vegetated shelf to the pond section detail. Indicate the elevations
and width of the shelf in the detail.
5. Report the surface area provided at the design pool elevation of 28.05.
127 Cardinal Drive Extension, Wilmington, N,C. 28405-3845 • Telephone [phone] • Fax [phone]
An Equal Opportunity Affirmative Action Employer

Mr. Cullipher
September 5, 1996
Stormwater Project No. SW8 960809
Please note that this request for additional information is in response to a preliminary review. The
requested information should be received by this Office prior to October 5, 1996, or the application will
be returned as incomplete. The return of a project will necessitate resubmittal of all required items,
including the application fee.
If you have any questions concerning this matter please feel free to call me at [phone].
Sincerely,
i/� &C't�
Ms. Linda Lewis
Environmental Engineer
JBBlari: S:IWQSISTORMWATIADDIIVF01960809.SEP
cc: Linda Lewis
Central Files
2

STROUD ENGINEERING, P.A.
HESTRON PLAZA ONE
SUITE 102
MOREHEAD CITY, NORTH CAROLINA 28557
[phone]
Ms. Linda Lewis
NCDEHNR Water Quality Section
127 Cardinal Drive Extension
Wilmington, N.C. 28405-3845
RE: J. M. Davis Industries
Carteret County
Stormwater Project #SW$ 960809
Dear Ms. Lewis,
October 4, 1996
OCT 0 9 19g6
sw� q(aoso�
Our office has received your review letter dated September 5, 1996 with regard to the
above referenced project and the following items have been addressed for your consideration:
1) Preliminary analysis of the downstream receiving waters at least one-half mile
from our proposed outlet reveals a reasonable likelihood that the chloride
content would be greater than 500 ppm, therefore, our revised stormwater
management plan has implemented an infiltration basin design to treat the first
1.5" of runoff.
2) See #1.
3) The plans have been revised to include the dimensions of the buildings,
parking, drives, and sidewalks.
4) See #1 .
5) All applicable surface areas are shown on the revised plans.
I have enclosed two copies of the revised plans, application, and a set of calculations
reflecting the new design. If I can provide any additional information regarding this project
please let me know.
Sincerely,
Dion J. Viventi, E.I.T.
DJVIkw
File:4811,ewiOut
107 COMMERCE ST. HESTRON PLAZA ONE
SUITE B SUITE 102
GREENVILLE, NC 27858 MOREHEAD CITY, NC 28557
[phone] [phone]

Technical Specifications
J. M. Davis Industries, Incorporated
Morehead Twsp., Carteret County, North Carolina
August 7, 1996
Client:
J. M. Davis Industries, Inc.
201 Arendell Street
Morehead City, North Carolina 28557
[phone]
�E'CEIVE
D
AUG 141996
DE
PROJ # 5CA59 LI f 0&30
AUG 13 1996�i�
1W. NCARoJk
;70 ;-,
4 •,�
N
� r
4 SEAL r
13343 =
r
Ron d D. CulIipher, P.E. Date
Fi1eA8/JMDavis.txt
Engineer:
Stroud Engineering, P.A.
Hestron Plaza One, Suite 102
Morehead City, North Carolina 28557
[phone]

r-- -. _
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Division 1
Site Grading
A. Description of Work
The work includes:
1. Stripping topsoil and stockpiling for later use.
2. Excavation and fill for parking lots and building pad.
B. Material
1. Fill Material
Use only select material . meeting the approval of the Engineer. Where
material excavated from on site cut areas is determined by the Engineer to be
suitable, it shall be used as fill. Suitable fill material shall generally consist of
materials classified as A -]-a, A-1-6, A-2-4 or A-2-5 and not containing
excessive moisture. Where suitable materials arc not available on site, borrow
material shall be furnished. Borrow shall generally meet the same requirements
as specified above.
2. Base Material for Floor Slab
The final four inches of. fill below the floor slab shall be clean, coarse
and sharp sand consisting of hard particles free from silt, salt or organic matter.
C. Execution
1. Erosion and Sedimentation Control
Prior to beginning any earth -disturbing activity the Contractor shall
construct all silt fences, straw bale barriers and/or other erosion and
sedimentation control devices as shown on the plans or as directed by the
Engineer.
2. Stripping
Shall consist of removing' organic soils and root mats from the surface
of all areas to receive special surface treatment including both asphalt and
concrete surfaces. Depth of stripping shall be determined based on site
conditions but the minimum depth shall generally be four inches. All material
from stripping operations shall be stockpiled in designated area.
File;48/JMDavis.txt

3. Rough Grading
Generally site grading shall conform to the grades and contours shown
on the plans. Tolerance for rough grades shall be +0.1 feet. Grade will be
staked by the Engineer.
4. Proof Rolling
After all portions of the site have been graded to finish grade the entire
area shall be proof rolled in the presence of the Engineer. A fully loaded
triaxle or tandem dump truck or a motor grader may be used for the proof
rolling. Areas which yield under the roller pressure shall be undercut, filled
with suitable material and compacted.
5. Building Area Subgrade Compaction
After the building area has been stripped, roll the entire building area
with a vibrating roller having a minimum static weight of 22,000 lbs. Make a
total of eight passes, four in each direction at 90 degrees to each other.
6. Embankment Construction
Embankments shall be constructed using only suitable fill material as
defined in paragraph B-1 above...
Embankments shall be built up in fill width from the bottom in -
successive layers not exceeding 12 inches thickness, loose depth with sides
slightly higher than the centers, Each layer shall be compacted with a vibrating
roller, eight passes as specified in five above.
7. Different Site Conditions
Should the Engineer determine that construction methods other than
those specified herein are required to obtain the required compaction, then the
price for such work shall be negotiated.
8. Density Testing
Subgrades shall be compacted the following densities:
Pavement Subgrades 95% Modified Proctor
Building Footings 95% Modified Proctor
Floor Slab 90% Modified Proctor
Density test if required will be paid for by the Owner. Any retesting
required due to improper compaction techniques will be paid for by the
Contractor.
HeA8/JMDavis.00!

Division 2
Private Drives and
Parking Lots
A. General
1. Description of Work
Furnish all tools, labor, material and equipment as required to construct
all paved areas.
2. Quality Assurance Testing Requirements
When the subgrade has been prepared and prior to placing any base
course material, notify the Engineer. The Engineer will check the subgrade for
compliance with planned profile and cross-section. Density tests may be
required at the discretion of the Engineer. The initial test will be paid for by
the Owner. Any areas which fail to meet compaction requirements as set forth
in Division 2, "Earthwork", shall be further densified and retested. Any
retesting required shall be done at the expense of the Contractor.
3. Notification
Notify the Engineer prior to placing any base course material and again
prior to paving.
B: Products
1. Base Course Material
Shall be crushed aggregate base course (CABC) meeting the
requirements of NORTH CAROLINA DEPARTMENT OF
TRANSPORTATION STANDARD SPECIFICATIONS FOR ROADS AND
STRUCTURES, Section 910.
2. Bituminous Concrete
Shall comply with NORTH CAROLINA DEPARTMENT OF
TRANSPORTATION STANDARD SPECIFICATIONS FOR ROADS AND
STRUCTURES, Section 645. Type and thickness shall be shown on plans.
ril e:48/JMDavis.txt

C. Execution
1. Preparation of Subgrade
When all excavated areas' have been brought to grade and all
embankment areas have been graded and compacted, the subgrade surface shall
be checked by means of levcls -and templates for cross-section. If found
correct, the entire subgrade shall then be rolled with a power roller weighing
not less than ten (10) tons after which the cross-section, shall again be checked
by template and all inequalities remedied. Subgrade areas which yield under
pressure shall be removed and replaced with suitable material. When rolling,
checking,' and re -rolling have been completed, the subgrade shall be considered
ready to receive the base course."-.
No base material shall be placed unless the subgrade is dry and firm.
Before beginning construction of the base course, the subgrade shall
have been prepared as directed above. Any settlement evident after base
course has been placed shall be corrected as directed by the Engineer and at
the Contractor's expense.
2. Placing CABC
Spread the CABC on the subgrade with a mechanical spreader capable
of placing the materials to a uniform loose depth and without segregation,
except that for areas in accessible to mechanical spreader, the CABC may be
placed by other methods approved by the Engineer.
No base material shall be placed on frozen subgrade or base. Hauling
equipment shall not be operated on a previously completed layer of base
material soft enough to rut or weave beneath the equipment.
The Contractor shall utilize methods of handling, hauling, and placing
which will minimize segregation and contamination. if segregation occurs, the
Engineer may require that changes be made in the Contractor's method to
minimize segregation and may .also require mixing on the road which may be
necessary to correct any segregated material. No additional compensation will
be allowed for the work of road rimixing as may be required under this
provision. Aggregate which is contaminated with foreign materials to the extent
the base course will not adequately serve its intended use, shall be removed
and replaced by the Contractor at the direction of the Engineer at no additional
cost to the Owner.
Fi1e:4 VJMDavis.txt

The base shall be compacted to a density equal to at least one hundred
percent (100) of that obtained by compacting a sample of the material in
accordance with AASHTO T 180.
The base material shall be compacted at a moisture content which is
approximately that required to project the maximum density indicated by the
above test method. The Contractor shall dry or add moisture to the material
when required to provide a uniformity compacted and acceptable base.
The base material shall be shaped to conform to the lines, grades and
typical sections shown on the plans or established by the Engineer. When
completed, the base course shall . be smooth, hard, dense, unyielding and well
bonded. A broom drag shall be used in connection with the final finishing and
conditioning of the surface of the base course.
3. Reconditioning Compacted Areas
Where completed compaction areas are disturbed by subsequent
construction operations or adverse weather; scarify surface, reshape and
compact to required density prior to further construction.
4. Maintenance of CABC
The Contractor shall maintain the surface of the base by watering,
machining and rolling or dragging when necessary to prevent damage to the
base by weather or traffic.
Where the base or subgrade is damaged, the Contractor shall repair the
damaged area, reshape the base to the required lines, grade and sections and
recompact the base to the required density.
5. Bituminous Concrete Paving
The paving operation shall comply in all respects with NORTH
CAROLINA DEPARTMENT OF TRANSPORTATION STANDARD
SPECIFICATIONS FOR ROADS AND STRUCTURES, latest edition.
The thickness tolerance for the in -place compacted bituminous concrete
shall be plus or minus 1 /4 inch.
6. Surface Smoothness
Test finished surface of each asphalt concrete course for smoothness,
using 10' straight edge applied parallel and at right angles to centerline of
paved area. Surfaces will not be acceptable if exceeding the 3/16" tolerance
for smoothness.
File:48/JMDavisut

A Guarantee
The Contractor shall guarantee the pavement structure for a period of one year
following final acceptance by the Engineer. Any areas which crack, settle or
otherwise fail during that period shall be replaced by the Contractor at no expense to
the Owner.
File:48I]MDavis.txt

Division 3
Storm Drainage
A. Scope of Work
The work to be performed consists of furnishing all tools, labor, materials,
equipment, supplies and other things necessary to complete the construction of all
storm drainage systems including incidental structures.
B. Materials
1. Concrete Pipe
Concrete pipe shall be reinforced concrete pipe, Class III or better,
meeting all requirements of ASTM C-76, latest edition.
Joints for concrete pipe shall be Ram-Nek type.
2. Corrugated Metal Pipe and End Section
Comply with ASTM 36-78 or the latest revision thereof. Only helical
corrugated, welded -seam pipe shall be accepted. Pipe shall have rerolled ends
with a minimum of two annular corrugations at each end. All pipe shall be
fully bituminous coated.
3. Coupling Bands for Corrugated Metal Pipe
Coupling bands shall be used at all joints. Bands shall be fully
bituminous coated on both sides and shall conform to ASSHTO Designations
M 190-78. Bands shall be corrugated or hugger -type having one annular
corrugation at each outside edge of the band will be acceptable. Coupling
bands shall be fastened on the cads with a minimum of two 1 /2 inch bolts,
4. Drainage Structures
Comply with NORTH CAROLINA DEPARTMENT OF
TRANSPORTATION STANDARD SPECIFICATIONS FOR ROADS AND
STRUCTURES, Section 840-2.
5. Silt Fence
Comply with typical detail on the plans.
Fil e:485MDavi s.txt

C. Execution
1. Pipe Installation
Comply with NORTH CAROLINA DEPARTMENT OF
TRANSPORTATION STANDARD SPECIFICATIONS FOR ROADS AND
STRUCTURES, Section 300.
2. Ditch Excavation
Excavate to line and grade as staked by the Engineer. Dispose of waste
on site in areas designated by the Engineer. Grade and compact waste disposal
areas to 90% standard density.
3. Erosion Control
Place rip -rap and silt fence as soon as possible. Contractor will be
responsible for implementing erosion control measures as designated on plans.
Fi1c:48/JMr)avis.txt

Division 4
Clearing and Grubbing
A. General
1. Description of Work
The work includes clearing and grubbing of areas within the street
right-of-way.
2. Protection of Other Trees
Exercise caution to prevent scaring or other damage to trees designated
to remain.
3. Mercantile Timbers
All mercantile timber shall be the property of the Contractor, and he
shall be responsible for its prompt removal.
B. Performance
1. Clearing and Grubbing
Clearing and grubbing to be performed under this item shall consist of
clearing the designated area of all trees, down timber, brush and other
vegetation, rubbish and all other .objectionable material and shall include
grubbing stumps and roots larger than 3 inches in diameter and matted roots.
2. Burning
The Contractor shall be responsible for obtaining a permit for any
burning. Burning will not be permitted .unless the Contractor obtains all
applicable permits. All burning shall comply with Rules and Regulations
Governing the Control of Air Pollution published by the State of North
Carolina Department of Environment, Health, and Natural Resources. Any
debris or rubbish which cannot be burned shall be hauled off and disposed of
at an approved dump site.
3. Erosion and Sedimentation Control
The Contractor shall comply with the Erosion and Sedimentation
Control Plans as approved by the, North Carolina Department of Environment,
Health, and Natural Resources .Land Quality Section.
ri1e:48/7MDavis.txt

Division 5
Concrete
A. Description of Work
Furnish all labor, material, equipment, and tools as required for all concrete
work including slabs and foundation. (Note: Preliminary footing design based on
assumed bearing -pressure, once laboratory results are obtained foundation will be
subject to change,provide unit price for foundation concrete.)
B. Materials
1. Concrete
Concrete shall be composed of aggregate, fine aggregate, Portland
Cement and water proportioned and mixed to produce a minimum compressive
strength of 3,000 psi after being cured for 28 days. All concrete shall be air
entrained and the percent of air shall be not less than 3% nor more than 5%.
Slump of fresh concrete shall not exceed 5". Water cement ratio shall be 6
gallons per bag or less. The Contractor shall submit the mix design to the
Engineer for approval prior to placing concrete.
2. Cement
Cement shall be fresh Portland Cement, Type I or Type III conforming
to ASTM C-I50.
3. Fine Aggregate
Fine Aggregate shall consists of clean, sharp sand, well graded from
course to fine, consisting of hard, durable, particles, free of silt, salt or organic
matter. It shall meet all requirements of ASTM Specifications C-33.
4. Course Aggregate
Course Aggregate shall ' consist of clean, washed gravel, free from
particles of wood or lumps of clay. Not more than 10% shall pass the Number
4 sieve or shall it be larger than I". The aggregate shall conform with the
requirements of ASTM Specifications C-33.
5. Water
Water shall be clean and free from oil, acids, salt or injurious substance.
Fil e:48/1M Davi ssm

6. Ready -Mixed Concrete
Ready -mixed concrete if used, shall be mixed and delivered in
accordance with the requirements as set forth in the STANDARD
SPECIFICATIONS FOR READY -MIXED CONCRETE, (ASTM Designation
C-94). All ready -mixed concrete shall have a minimum compressive strength
of 3,000 psi at 28 days.
7. Steel Reinforcement
Reinforcing bars shall conform to ASTM Designation A-615, Bars for
Concrete Reinforcement,
S. Air Entraining Admixtures
Comply with ASTM C-175 for air entrained Portland Cement or use an
air entraining admixture complying with ASTM C-226.
9. Set Accelerating Admixture
Calcium chloride may be used to accelerate set. Comply with ASTM
RM
10. Vapor Barrier
Use 6 mil polyethylene conforming to Commercial Standard CS - 238.
11. Joint Sealant
All joints in concrete slab shall be filled with a sealant complying with
Federal Specifications SS - S - 220 D or approved equal.
C. Execution
1. Concrete Work
All concrete work shall comply with recommended practices of the
Portland Cement Association.
2. Preparation Of Equipment And Place Of Deposit
a. Before placement, all equipment for mixing and transporting the
concrete shall be cleaned and all debris and ice shall be removed from
the places to be occupied by the concrete. Forms shall be thoroughly
wetted (except in freezing weather) or oiled. The reinforcement shall be
► j' IEe:48/JMDavis.txt

thoroughly cleaned of ice, dirt, rust, mill scale or other things.
b. Water shall be removed from place of deposit before concrete is placed
unless otherwise permitted by the Engineer. All laitance and other
unsound material shall be removed from hardened concrete before
additional concrete is added. Dewatering of excavations will be the
responsibility of the Foundation Contractor and the cost incurred will be
incidental.
3. Mixing
a. Ready -mixed concrete shall be mixed and delivered in accordance with
Specifications of Ready -Mixed Concrete (ASTM C-94 or CSA A-23.1)
b. For job mixed concrete, 'the mixer shall be rotated at a speed
recommended by the manufacturer. Each batch of 1 cubic yard or less
shall be mixed for at least 1 minute after all materials are in, the mixer.
The mixing time shall be. increased 15 seconds for each additional cubic
yard or fraction thereof. The entire batch shall be discharged before the
mixer is recharged.
4. Conveying
Concrete shall be conveyed from the mixer to the place of final deposit
by methods that will prevent separation or loss of materials.
5. Placing
a. Concrete shall be deposited as nearly as practicable in its final position
to avoid segregation due 'to rehandling or flowing. Concrete shall be
placed at such a rate that it is at all times plastic and flows readily
between bars. No concrete contaminated by foreign material shall be
used, nor shall retempercd concrete be used unless approved by the
Engineer.
b. When placing is started, it shall be carried on as a continuous operation
until placement of the entire foundation is completed.
C. All concrete shall be thoroughly consolidated during placement. It shall
be thoroughly worked around reinforcement and embedded fixtures and
into the comers of the forms.
6. Curing
Concrete shall be kept moist for at least S days after placement.
High -early -strength concretes, however, shall be kept moist for at least the first
Fi1e:48/JMDavis.txt

2 days when concrete and air temperatures are above 50 degrees F.; longer
periods or curing shall be required when temperatures are below 50 degrees F.
7. Cold -Weather Requirements
a. Adequate equipment shall be provided for heating concrete materials
and protecting concrete during freezing or near -freezing weather. No
frozen materials or materials containing snow or ice shall be used.
b. All reinforcements, forms, fillers and ground with which the concrete is
to come in contact shall be free from snow and ice. All concrete placed
in forms shall have a temperature of 50 degrees F. or higher after
placement. Adequate means shall be provided for maintaining this
temperature for 3 days, When high -early -strength concrete is used, a
temperature of at least 50 degrees F. shall be maintained for 2 days. In
either case, additional time necessary to ensure proper curing of the
concrete shall be provided as directed by the Engineer. The housing,
covering or other protection used in curing shall remain intact at least
24 hours after artificial heating is discontinued. No dependence shall be
placed on salt or other chemicals for prevention of freezing.
8. Cleaning Reinforcement
At the time concrete is placed, metal reinforcement shall be free from
loose, thick rust, mill scale or other coatings that will destroy or reduce the
bond.
9. Placing Reinforcement
Metal reinforcement shall be accurately placed according to the plans
and adequately secured in position by concrete, metal or other approved chairs
spacers or ties.
10. Concrete Protection for Reinforcement
Reinforcement shall be protected by the thickness of concrete indicated
in the plans. Where not otherwise shown, the thickness or concrete over the
reinforcement shall be three inches.
11. Finishing Slab
After the concrete is deposited, it shall be leveled approximately and
struck off to such an elevation above the finished grade that, when
consolidated, the surface will conform to this grade. The strike board shall be
moved forward with a combined longitudinal and transverse motion, keeping a
txt

slight excess of material in front of the cutting edge at all times. The entire
area shall be thoroughly tamped to insure maximum compaction.
After the surface is obtained, the surface shall be floated with a
longitudial float.Any depressions shall be filled with fresh concrete, struck off
and reconsolidated and projections shall be removed.
Long handled wooden floats may be used to correct unevenness not
taken care of by the longitudinal float, but they shall not be used to float the
entire surface.
Floating shall be followed by steel troweling to produce a smooth
surface free of defects. This shall be followed by a second troweling when the
concrete has become hard enough so that no mortar adheres to the edge of the
trowel and a ringing sound is produced as the trowel passes -over the surface.
The final surface shall not vary more than 08 inch when tested with a 10 ft.
straight edge placed in any direction.
D. Testing
Compression tests and slump tests may be conducted at the option of the
Owner and at the Owner's expense.
RIe:48/1MDavi s.txt

Division 6
Asphalt Concrete
Paving
A. Scope of Work
This work shall include fine grading and placing of bituminous concrete paving.
B. Materials
1. Base Course
The base course shall consist of a six inch compacted aggregate base course.
2. Pavement
The pavement shall consist of 1 1/2 inchcs bituminous concrete surface
course, Type 1-2, placed in one laycr. Bituminous concrete shall comply with
the NORTH CAROLINA STATE HIGHWAY COMMISSION STANDARD
SPECIFICATIONS FOR ROADS AND STRUCTURES, Section 645.
C. Workmanship
The paving operation shall comply in all respects with NORTH CAROLINA
STATE HIGHWAY STANDARD SPECIFICATIONS FOR ROADS AND
STRUCTURES, latest edition.
JMBavis.txt

Division 7
Concrete Curb and Gutter
A. Description
The work includes:
1. Construction of 24" concrete curb and gutter, "state face".
2. Vx46" valley gutter.
B. Materials
1. Concrete
Concrete shall meet requirements of North Carolina State Highway
Commission Standard Specification For Roads and Structures, Section 900 for
Class "B" concrete.
2. Curb and Gutter
Curb and gutter shall be 24" standard type.
C. Workmanship
1. All workmanship shall comply with North Carolina State Highway Commission
Standard Specifications for Roads and Structures, latest edition.
2. All curb and gutter shall be placed on a prepared ABC base 4" thick.
3. Backfill and Curb and Gutter
The Contractor shall backfill, curb and gutter as soon as practical. If
the curb and gutter become misaligned due to failure of the Contractor to
properly backfill the curb; then all misaligned curb and gutter shall be replaced
at the Contractor's expense. Roadway shoulders shall be graded on a 2:1
slope.
4. Protection of Existing Construction
The Contractor shall take care not to disturb any structures in place.
Any damage caused by his operation will be repaired at the Contractor's
expense.
FileA8/3MDavis.txt

D. Notification
Notify the Engineer at lease twenty-four (24) hours prior to placing curb and
gutter.
E. Payment
Payment for curb and gutter will be at the Contract Unit Price per lineal foot
based on the Engineer's final measurements. The Contractor shall include cost for
backfilling the curb in his unit price for curb and gutter. No additional payment will
be made for backfilling.
File:48/JMDavi s.txt