SW8920903_HISTORICAL FILE_19921102

STORMWATER DIVISION CODING SHEET
POST-CONSTRUCTION PERMITS
PERMIT NO. SW8 j��
DOC TYPE ❑ CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMM DD

< ,a�'f ♦A '1
State of North Carolina
Department of Environment, Health, and Natural Resources
Wilmington Regional Office
James G. Martin, Governor Bob Jamieson
William W. Cobey, Jr., Secretary Regional Manager
November 2, 1992
DIVISION OF ENVIRONMENTAL MANAGEMENT
Mr. Jim Owens
Coastal Carolina Community College
444 Western Boulevard
Jacksonville, North Carolina 28540
ry, Subject: Certification of Compliance
g ; with Stormwater Regulations
Stormwater Project No. 920903
Parking Lot Number 4
Onslow County
Dear Mr. Owens:
This Certification is pursuant to the application for Parking Lot Number 4 received on September
8, 1992, with additional information received on November 2, 1992. Based on our review of the project
plans and specifications, we have determined that the Parking Lot Number 4 stormwater control system
complies with the Stormwater Regulations set forth in Title 15A NCAC 2H.1003(i). The runoff will be
treated in a detention pond sized to achieve 85% reduction in Total Suspended Solids.
Any modification of the plans submitted to this Office or further development of this site will
require an additional Stormwater Submittal/Modification and approval prior to initiation of
construction. Modifications include but are not limited to; project name changes, transfer of
ownership, redesign of built-upon surfaces, addition of built-upon surfaces, redesign or further
subdivision of the project area.
This Certification shall be effective from the date of issuance until rescinded. The project
shall be constructed and maintained in accordance with the plans and specifications approved by the
-continued-
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 •Telephone [phone]• Fax 919-350,2004
An Equal Opportunity Affirmative Action Employer

Mr. Owens
Stormwater No. 920903
November 2, 1992
----------------------------
Wilmington Regional Office. This Certification does not supersede any other permit or approval. The
developer is responsible for obtaining any and all permits and approvals necessary for the
development of this project. This could include the Division of Coastal Management under CAMA
requirements, The Division of Environmental Management under Wetland 401 Water Quality
Certification and/or a Dredge and Fill Permit and/or a Sewer Extension/Collection Permit, U.S.
Army Corps of Engineers 404 Wetland Permit, local County or Town Agency permits under their
local ordinances, or others that may be required.
A professional engineer must certify that the stormwater system has been installed in
accordance with the approved plans and.specifications upon completion of construction. The attached
certification should be received by this Office within 30 days of completion of construction.
If you have any questions concerning this matter, please call Ms. Linda Lewis or me at (919)
395-3900.
Sincerely,
-- -- I L
Adkins
Water Quality Supervisor
DA/arl: 920903.NOV
cc: Mr. Gordon R. McAdams, P.E., James E. Stewart and Associates
Mr. Marshall Batchlor, Onslow County Inspections
Linda Lewis
'W ilmington_Regional-Office,
Central Files
2

DIVISION OF ENVIRONMENTAL MANAGEMENT
Evaluation of Stormwater Treatment and Disposal System
Draining to Waters Other Than Class SA, or > .5 miles from SA waters.
PROJECT DATA
Project Name: Parking Lot Number 4
Project Number: 920903
Location: Onslow County
Applicant: Mr. Jim Owens
Mailing Address: Coastal Carolina Community College
444 Western Boulevard
Jacksonville, North Carolina 28540
Submittal Date: September 8, 1992
Water Body Receiving Stormwater Runoff: Chainey Creek, tributary to New River
Classification of Water Body: "SC-NSW"
WET DETENTION POND EVALUATION
1. Yes No The design storage is for the runoff from all impervious surfaces resulting
from 1-inch of rainfall and is located above the permanent pool.
2. Yes No The permanent pool is designed for 85% TSS removal.
3. Yes No The runoff completely draws down to the permanent pool in 5 days, but not
less than 2 days.
4. Yes No The mean depth of the permanent pool is a minimum of 3 feet.
5. Yes No The inlet structure is designed to minimize turbulence and short circuiting.
6. Yes No All overflow and discharge flows through a vegetative filter at least 30 feet in
length.
3

.WET DETENTION POND EVALUATION CONTINUED
7. Yes No A method is used to provide even distribution of runoff over the length of the
vegetative filter.
8. Yes No The slope and width of the vegetative.filter provides non-erosive flow for the
10-year and 24-hour storm with a 10-year, 1-hour intensity.
9. Yes No The vegetative filter has a slope of 5% or less.
10. Yes No The vegetative filter is natural, grassed or artificially planted wetland
vegetation.
11. Yes No An appropriate operation and maintenance plan has been provided for the
system.
12. Yes No THIS PROJECT MEETS THE STORMWATER CONTROL
REQUIREMENTS OF 15A NCAC 2H.1003 (g), (i), 0), (k), and (1) (For
Yes, 1 through 11 must all be underlined Yes.)
Brief Explanation: This detention pond is designed to remove 85% total suspended solids and will
therefore be operated with a vegetative filter.
DIVISION OF ENVIRONMENTAL MANAGEMENT SIGN-OFF
Wilmington Regional Office
2 Nov 1442
Date Individual Evaluating Form/Plans
Z.>lte'_mV,,Z jS9 LL�'t 1
Date `-Regienal-Water Quality Supervisor
cc: Applicant/WiRO/ARL/CF
4

Enairieer ' s Certification
I , Gordon R. McAdams, P.E. , as a duly registered
Professional Engineer in the State of North Carolina, having been
authorized to observe periodicall /weekly/full time) the
construction of the project,
Stormwater Detsntion� Pond
Coastal Carolina Community College Onslow County, North Carolina
(Project) Parking Lot
Project No. 920903
for the _ Coastal Carolina Community College hereby state that, to
(Project Owner)
the best of my abilities, due care and diligence was used in the
observation of the project construction such that the
construction was observed to be built within substantial
compliance and intent of the approved plans and specifications .
Neuemaapy/
A
,��,•%. CARD(/%'.y's
Signature / `�� � ' E$SIOy
Registration Number 14125 = SEAL
i 14125
Date `� 'LA0 = G�%6VG EQOP�
"•",••oP� I NE cP `�
R R,
11U 5EP 0 8 1993 U
Utoo
�r y 20CI

47*30
Pumpkin Geu er
r % s ' - a
` — a t--, N� [i1 sal 50y
fA,
Airpon
u
\ i /_
%, 1 ``
V y-'I l ```:• t' \ .e /`tt �'�\/ i — ._
zz z
Y \ h,m'
qr
�1� I.orUo.tttl FA,
moo\ 0" � +l',�-x '�h +� �l44 + + l�t�r �sov� �tYE( 'tw {� �� `� i��� • J \ 5,.
��a• , �/, 5 , 1� � 'S 1 'rH .d4 t �. :--- v. ♦ / Fitt«E,ade• ... :ti d•%' �.
uribeY7.`" 51 At , F. r?��ln c i - � .`I'•i �i
J/ iF _ "'"��,♦ 'a'',_ ,.'jam -J�o ,� I "a ` • , ad
c t' .2.d' a•nr. +\ ,
kM� `��� �`r! /'\�• �� dtrncwal Ho 6'[al_
L M' v"4,0
q e
a\O' \ ri / 1 ' ..•. :ado
Pfl Fork
? `- .� t `� �G�`c fir•:. ,fc th nnur a♦..
„� / i rib r�
_....__._ SutxW,'; /'ice ,d _Pa \ '• - �N f�� F S s �
t 1 12
Ci srwr ` 1J ynfy Y.v.' G a , 'V d
S��ice• , 1`f•� N `•'h {R t.h 'rN \�9 3t F (,r^ �I > ' ✓: ` I
a �i `\fop rek .a �}p�, �� ty�/ �r�i 2r•��\.,1� ..4adio Tura .:�} a = g�
. ". _ - :a _ �} �a. „� os\>.,,. ?\'U _• r a_'SflS � r '.\Pfti��hr.Ais.r y' µ4 .\. � � "�'•. _ _� . . ,�: d ��ep�wo,'N

j m S U 0RMWATER &
zUu U3 � s 1
t NOV 0'2 1992
D E M
FRoJ # azwgo3
—PROPOSED STORMWATER
R. DETENTION POND
r`
SL LZT t` r lOT x
0.
vi PARKING LOT
j A U
�_J
z �
o
a �Im
o F
�7 vi COASTAL CAROLINA 0 N
x COMMUNITY COLLEGE
W it z
it
U
` WESTERN BOULEVARD - --- -- --- -
I O 1j
I
j VICINITY SKETCH
COASTAL CAROLINA COMMUNITY COLLEGE
,PARKING LOT NO, 4
r -- -- -- fzc TO_.SCALE -- - _---.. -- — - - --
i
I James Stewart and 4,vsoojates, Inc.
ENGINEERING - SURVEYING - PLANNING
i P.O. DRAWER 976 ��
JACK5ONy1LLE, NORTH CAROUNA 28511-C976
919-455-2414

Engineer's Certification
I, , as a duly registered Professional Engineer in the
State of North Carolina, having been authorized to observe (periodically/weekly/full time) the
construction of the project,
(Project)
for (Project Owner) hereby state that, to the best of my
abilities, due: care and diligence was used in the observation of the project construction such that the
construction was observed to be built within substantial compliance and intent of the approved plans
and specifications.
Signature
Registration Number
Date
5

V
COASTAL CAROLINA COMMUNITY COLLEGE
PARKING LOT 84
STORMMATER DETENTION POND
ENGINEERING CALCULATIONS
1. AREA
Total Area Draining to Pond from Parking Lot. . . . . . . 2. 41 Acres
Incidental Area Draining to Pond from
Area Surrounding Pond Site (approximate) . . . . . . . . . . . 0. 3 Acres
Total Area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. 71 Acres
TotalImpervious Area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. 33 Acres
:. of impervious area = 86. 0%
2. PERMANENT POND SURFACE AREA
From Chart 3 - Appendix E from D. E. M. Report 87-05, interpolate
for 86. 0% impervious, 5. 0 basin depth with 30 foot Vegetative
Filter Yields SA/DA = 4. 5%
2. 71 acres x 4. 5% = 0. 122 acres or 5, 312 S. F. surface area
required
Top of permanent pond elevation is 38. 1
Area at 38. 1 elevation = 0. 184 acres or 8, 000 S. F. provided
3. TEMPORARY DETENTION STORAGE VOLUME
1" )( 2. 71 acres = 2. 71 in - acres
2. 71 in -acres x 3, 630 C. F. = 9, 837. 3 C. F. required
in acres
4. TEMPORARY DETENTION STORAGE HEIGHT
Area at 38. 1 elevation ( permanent pond) = 6, 000 S. F. = 0. 184 ac.
Area at 39. 2 elevation (temporary pond) =10, 227 S. F. = 0. 235 ac.
Average area = 9, 114 S. F.
Storage volume = 9, 114 S. F..\\�\rIxII� {?�'
1. 1 Height = 10, 025 C. F. provided ,
U
NOV 0 2 1992
r:toj # 92oao3

ENG-2
5. REL.IEVE TEMPORARY STORAGE VOLUME IN 2 TO 5 DAYS
O = Cd A Zy ( orifice equation)
O = 9, 837 C. F. s 2 days = . 057 CFS
O = 9, 837 C. F. 5 days = . 023 CFS
Cd = 0. 60
g = 32. 2 ft/sec
h = 0. 55 average height
Solve for A A = 0. 016 S. F. = n R'
Then Orifice Diameter
For 2 Day
Release R = 0. 72 ft. = 0. 86 inch
D = 1. 7 inch
Solve for A , A = 0. 006 S. F. = n R'
Then Orifice Diameter
For 5 Day
Release R = 0. 045 ft. = 0. 54 inch
D = 1. 09 inch
Use 1. 5-inch diameter orifice
6. SIZE INLET RISER PIPE AND OUTLET PIPES TO HANDLE 100-YR, 10-MIN.
STORM (Riser will serve as emergency relief)
A. Storm Flow
B = CiA
A = 2. 83 acres (pond and parking)
C = 1. 0
i = 6. 39 in/hr
O = 1. 0 (8. 39) 2. 83 = 23. 8 cfs
El. Inlet Riser Pipe
s
Water height before topping pond = 43. 0 - 39. 2 = 3. 8
9 = Cd A Vr2—gfi ( orifice equation)
Cd = 0. 6 ( typical value)
H = 3. 8
O = 23. 8 CFS
2g = 64. 4
Solve for A, A = 2. 54 S. F. = n R'
R = 0. 81 ft. = 9. 7 inches
Diameter = 19. 4 inches
Use 1-24" pipe (allows for future pond expansion)

1;
ENG-3
C. Outlet Pipe
Use reference Chart 5, Bureau of Public Roads Jan. 1963
Setting invert of outlet pipe at 36. 1 with top of pond at
43. 0
Hw = 43. 0 - 38. 1 = 4. 9
Diameter = assume 24"
HV= 44_9 -2.4
D 2
Entrance Type 1
From chart, 9 = 30 CFS > 23. 8 CFS
Use 1-24" pipe
REVISED 10-29-92

JHMES TEIIIH1 7 w H: '::0C TEL : '. -91' -4«-`441 hlru 02 . 97 1) :'u N0 . 002 F . 01
4 '
1
CONSULTING ENGINEERS — LAND SURVEYORS — LAND PLANNERS
FACSIMILE TRARSNTSSION COVER SHEET 306-310 NEW SRIDGE STREET
P. O. DRAWER 4J0
JACKSONVILIF. NORTH .ARourJ.: 28541 0076
FAX t (919) 455-3441 9I9"455-24!4
Company: <��m
FRT.Mi¢-��1`S.yL�S..1.1(�15�!t-*Y.2i ___—..�___ .._..— _....�
RE:_�I `�LS�1_� rv1Q1`Yl�- __ (Yl(1"llaY�1
REMARKS: 1 C["YS 4l Z]1 S S 1�G1rlL �U1
'LLffrcUU` NUY_0_.2-�1992T._U_
f
Humber of Pagea fine uding, thin sheetl : -
Original to Fullov by Mai.lt Yea _ No
Confirmation of Receipt Requested: Yes_-- No_:__
COHF I DEFiT'I I�L ITY
The information contained in this faceiaile is privileged end confidential,
intended only for the use of the addressee, If the reader is not the intandrd
rocipient, you are hereby notified that any use is strictly prohibited. If you
have received this telecopy in error, please immediately notify the vender by
telephone and return the original telecopy to the sander at the above address.
Thank. you.
D:\DOC\FA%COVER
ENVIRONMENTAL ENGINEERING • SIORly. WATER PAANAGEtAEN1 O WATER AND V"I ASf EVJATEP. SYSTEMS
SOBS USE STUDIES 0 FEASIbl!ITY REPORTS a IAA PACT STATFAAENTS • CC)NSIPUCTIO'^! PL-NS

JAMES STEWART 0 ASSOC TEL : [phone] Hov 02 . 92 15 : T1 Ho . 002 P . 02
I)PENATIAM AND MAINTENANCE
KIRUTfUN III
To assure tbqt t ho at a rmwai a r Pol d nPar atop. an it w0A "": 19nc 1,
n; oper -awntonanco cf iAu- in; wv, 1 - , p,nd and all nppu; to.
npceaoary. Coastal Carolina Community College, an UWNLH, will be
responsible for proper maintenance of the pond. Tho follywinq 1 , it
is a guideline to help the OWNER properly maint-In tQs y. few.
1 . In assuro that rho pond will im! fill wanh n,diwont !at ,g I Kc.
construction period of Parking Lot P4, it in impory" ive MA
the erosion and ""almont on"trol MQM�ryv dP, ; qz-Wq ho
ioatalled and maintainod prop,rly to rfohlbit illy ISMI -nK
from entering tho su"A unUA ztAh: 13zation of 10 on' i , w wi ' t,
hau occurred.
Araesing rpquirementa Ehould ho followed atricLly and , viand
of grass eha.] .] be p, ovided nathin 30 days to utah3lirw the
dlkp and Pmba"kwonts and asevip manimml. or-mion.
Rip rep structoins should to jurLolled and mwintAnwd a. nM-wn
and described in the p3ann' and the ernsion and sod ino"tnt3on
controJ "Harratave Raport " LU nPip eeduce eranave M
a! stormwMef
nnye etahilization har occurrad therm items Should h, thock-el
on a monthly basis and properly repaired should s.y damaye
QCQUTI
2. A pumping syrtem will he requiv , d in oompletpAy dram: the Pend
lor Bottom of pond elavataonL should ho thecVpd
every year to J"twrmAw, the nm� u"t "I wedimp"t hu ! 3A- "P. A.
00diMeUt bUi3d -Up is yreatOr LhZin OnO Mot, Lila pond .11OUld A.
drained and sycavatod t" tho pond bottom " Ievwao".
SUMMER
-1 �
bu
NOV 0 2 1992
D E FM
PzoJ #_,tzo 90 3

1HP4r > STE Wp,['T & cj'- '::Ol- TEL H ii v 02, ZI 2
1 (-: i 3 !,,i r.ru l 1 '11 1 1 1 f I
C- p d kz-v 6'�I 1 r'') r,;,
cfar,iaqe to the J1 1 1, 1'
UiC 1 If.6 n, 1"L, z1,..jui i,i OI, I-
f:.ra I I C,1) ui t 1.2 j)f
I y,ML.W tIFIC k 0 C,f I t. C1 fit L
r ec.E If h i 7r. mQ v ri.r-u 1't .1(1 S 1 I, Pl I.I n C; a o I'ki .1 C, c, r,I,t-
1,�C:W ":I, Tu
M
4C-
OF 140P%T): CM�il? 114A
Nc.� u 1, 1 A 0 C . Ift v
telly C,C-T f [,3
�p,.F-ar c-d bpJ ai t hir day utid t I;1!1.E..w I(-d(j F-o' L h duw
f I e CA u A ft Cl I r.Sti L1,l,
W.1 112 w my han,1 c-I o(.1 U.f f i C;i i, 1 4"1 1
11", '70mil; L f-.,F-,I oil
MEMO
NOV 0 2 M
DEM
PROJ 920905

CONSULTING ENGINEERS — LAND SURVEYORS — LAND PLANNERS esd
306-310 NEW BRIDGE STREET
P. O. DRAWER 976RECEtvED JACKSONVILLE, NORTH CAROLINA 28541-0976
919-455-2414
OCT 30 1992
CNmington Regional GMC6j DEM October 27, 1992
Me. Linda Lewis
Division of Environmental Management
127 Cardinal Drive Extension
Wilmington, North Carolina 28405-3845
Re: Coastal Carolina Community College
Parking Lot *4
Dear Ms. Lewis:
Enclosed you will find three sets of plans for the
referenced project which have been revised based on your
preliminary review. Specifically, we offer the following to
address the items contained in your letter:
1. An additional 0. 3 acre of area has been determined
to tie incidental drainage to the pond. Parking Lot *3 does
not drain toward this pond. Revised calculations are
enclosed. —
2. The pond side slopes remain at 2: 1 below the
permanent pool per our conversation. Above the permanent
pool, the slope is now 4:1.
3. A copy of the notarized Operation and Maintenance
Plan is enclosed.
4. A vegetative filter has been added at the end of
pipe "N".
5. A cross-section of the vegetative filter has been
added to the plan. ,
6. In addition to the energy dissipation provided by
the rip rap scour pad already designed, I have added a wooden
energy check as requested. 171
LnLyyt11 yy[[xx''
STORu w Lo Is u l
NOV 0 2 1992 bu
1) eon
PROTT # 920903
N ENVIROMENTAL ENGINEERING • STORM WATER MANAGEMENT • WATER AND WASTEWATER TF77
SOILS USE STUDIES 0 FEASIBILITY REPORTS 0 IMPACT STATEMENTS 0 CONSTRUCTION PLANS

Ms. Linda Lewis
October 29, 1992
Page Two
7. Re—calculation of the orifice size for only the
actual temporary storage volume resulted in no change in the
orifice size.
8. A cross—section of the ditch has been provided.
If you have any questions or need any additional
information, please give me a call .
Very truly yours,
JAMES E. STEWART AND ASSOCIATES, INC.
Gordon R. McAdams, P. E.
GRM/mew
xc: Mr. Jim Owens
Mr. Kenneth M. Phelps
CF fP>
SOCI M l] Lill u
ij )j L ID LL. u u 6 {,, ,
ILJnU` NOV 0 2 1992 U
DEM
r_qoJ # 9zo903

OPERAI'll')N AND HAINTEMANCE
NECTTON TIl
7u assure that the Marmwatqr pond operates aE. it waR Mc janc 1,
aroper manntannnuo of tho Yo; mwar"! nand and all n -e
necessary. Coactal Carolina Community College, an OWNER. will we
responsible for proper maintenance of the pond. Tile followilm 3ont
is a guideline to help thn OWNER properly maintAin this nyLtew.
To assure that tho pond will not fill with 2odimert Aal ! og tQ;,
construction perind of Parking Lot 04, it ) , imperovive iEnt
the erosion and nadimp"t anntrol moasur&v ds igred he
installed and maintained propvrly to punfirbit iny slAino-fit.
from entering the PU"A until : tahaiizatian of th- on ! ivp want-t,
has occurred.
Byeasing requifem&nts should hp followed strictly n"d a Mand
of grass shall be provided vathin 3D dayR to stabiline the
dike and Pmhanlowpnts and no sure minimal ernTion.
Rip rep structures should be in"talled and mmintained as shown
and described in the p3ano and the erosion and sedimN"tntanrj
control "Narrative Raport " tu hPJ p reduce erosive vwlocilsoF
of stormwater oncountoypa.
nnoe stshilization h"n occurred the3e items should by check,-d
on a monthly basis and properly repaired 8hould ony damage-
Occur .
2. A pumping syRtem will be required to completely drain the pond
Xor maintenance. Vottom al pond elevations ahould ho checked
every year' to Jutalmine the mmuu"t of wed1we"t MIA- up. it
ovdiment bUild-up is Wreater than one foot, the pond : hould be-
drained and pmoavated to the orign "01 pond bottom olpvatiwo'
NORMWATER
-%
ID) 0 L6 v
NOV 0 2 1992
DEM
PROJF # gzoaos

S. The riser pi p&4 trnNh rank And wmali ori f jo- oponang "h"ujd he
checked every UHII)Lh to ossuve no cluggi"q of the YyyLem ni
damage to the oystam ha2 occurrad. The tra4h rank snr,en anci
be Weenved monthly La at.;sui ,z-
operation of the pond.
4. Maw back slope of How fieqoently enough to preclude ycowth of
trees which mmy recult in soJI piping alono root ch-nnelv.
ASRFEU TO :
Im 70L�Ns
' ,act ', Carolina Community Cr l . Pq--
444 W"SA ,vl " Blvd.
Jackyunville, NC 28540
STATE OF NORTH ,CAPOkINA
COUNTY CII.,
a Notary Puhlic :f
ry:; llo,id C,, .knt.y end
state, do joyvjo certify lot Q I
6 fn�3
appeared before me thin day and a 1nowledged tho du& exaoution al
the foregoing inlatrwment.
j
WiAnvSB my hand ""d official VOW , this thv doy of
y .
My commislainn P ix pi f?r-,, 5
STORMWATER
-1
U
-N L rip) rq ILO kw LUV -t U'
NOV 0 2 1992
DEM

wn'd jnc.
CONSULTING ENGINEERS — LAND SURVEYORS — LAND PLANNERS
FACSIMILE TRANSMISSION COVER SHEET 306 310 NEW BRIDGE STREET
P. O. DRAWER 976
JACK$ONVILLE, NORTH CAROLINA 28541-0976
FAX i (919) 455-3441 919-455-2414
Till Mi .
Companyi-u rr\ /
Fax#: Nlc1 1 22�zTo
Date: 1.70V , Z \ 19i -z
FROM:
((yy /�� n
l'ommur)dLp OxAle4r ... ._......
crt
REMARKS:_ fXt1' "�� Dt�S N- Mal ('1�(Q(1a1�1G'Q, � •cu 1
, ;Ff
ll � U
NOV 0 2 1992
UEM
Number of Pages (including this sheet) : 1.2OJ g2o903
Original to Follov by Mailt Yoe No
Confirmation of Receipt Requested: Yee No
CONFIDENTIALITY
The information contained in thin facsimile is privileged and confidential,
intended only for the use of the addressee. If the reader is not the intended
recipient, you are hereby notified that any use is strictly prohibited. If you
have received this teleoopy in error, please immediately notify the sender by
telephone and return the original telecopy to the sender at the above address.
Thank you.
D:\DOC\FAXCOVER
ENVIRONMENTAL ENGINEERING • STORM WATER MANAGEMENT • WATER AND WASTEWATER SYSTEMS
SOILS USE STUDIES 0 PEASIBILITY REPORTS • IMPACT STATEMENTS • CONSTRUCTION PLANS

CONSULTING ENGINEERS — LAND SURVEYORS — LAND PLANNERS
FACSIMILE TRANSMISSION COVER SHEET 306 310 NEW BRIDGE STREET
P, O. DRAWER 976
JACKSONVILLE, N00TH CAROLINA 28541.0976
FAX # (919) 455-3441 919.455-2414
TONS3_ t
Company:._.
,�IG�
Date: KJDK4
RE:
REMARKS:
U UU nuyu uunfl L gb
-� n
u s � -
U
NOV 0 2 1992
UEM
R 92o4a3
Humber of Pages (includin❑ this sheet) :
Original to Follov by Mail: Yes No�
Confirmation of Receipt Requested: Yea No
CONFIDENTIALITY
The information contained in this facsimile is privileged and confidential,
intended only for the use of the addressee. If the reader is not the intended
recipient, you are hereby notified that any use is strictly prohibited. If you
have received this telecopy in error, please immediately notify the sender by
telephone and return the original telecopy to the sender at the above address.
Thank you.
D: \DOC\FAXCOVER
ENVIRONMENTAL ENGINEERING e STORM WATER MANAGEMENT e WATER AND WASTEWATER SYSTEMS
SOILS USE STUDIES 0 FEASIBILITY RFPORTS 0 IMPACT STATEMENTS 0 CONSTRUCTION PLANS

JHMES STEWA*RT ° ASSOC TEL : [phone] Nov 02 . _+2 16 : 27 Ho . 003 P . 01
i"Aln;.i <�. !)�<r�°n-it/ lavcd ._ 1J.1CCllcficl , %irc'. �_
CONSULTING ENGINEERS --LAND SURVEYORS LAND PLANNERS
F'ACSTHYLE. TRANSMISSIAIw COVER SHF_ET 306e10 N[4: 517,0C.
E S;RECI
P 0 Ui;Al4ER 776
JA'aSOP:`/ILCE NOPM CARCRINA 265,41-0976
FAX + (9191 455-3441 919.4 s;24)4
��Falco
Date:
Fwml
UU wav1111
Nov 0
Number of Pager tinpludinq thfa aheet) :� '--. ---- --v 0 3—
Us-191nal to Follow by Hail : Yee
i _ 1�ROJ
p
k0_
Conf:irmat.ton of Receipt RequeRted: Ycnw Hn_ y
CONVID"TIAM-Y
'The tuformation contained in thin facsimile le privile9wd and conf iUent lal,
intended Only tur the use of the uddraasen. If the reader is not the intended
recipient, you are hereby notified that any uao ie atrictly prohibited. If ynU
have receivod thin telecopy in orrur, please immediately notify the wonder by
telephone and return the original, telecopy to the eendar at the above addreae.
Thant: you.
D: \DOC\F'AXCOVF;R
l:<1J1RpN!s ENTA, tNGIf.'Et G,ING • ,.
51.^,-^l.9 \'.:aitR AA,>NAGEMF.r•:T • bVg1F.N AND WA-i t:\A,1A?[R :vST5r?5
SOaE USE $%'D!ES • FL AS!3!MIY PI TS 0 LIAPACT SI<,rpnnl.^d1S • ('C7fv lRli('Ti ry 1'L'•lv

JRHES STEWART ASSOC TEL : 1 -9I9-455-3441 No':/ cl ` - c 16 : -,7 JdCj OC17 p 1-j7
kv
Sk, Nov 0 2 1992
M
920403
10
cn.
W, ya
tl
'lop
1,7
CRY
ep
to
41P
VI
Ap
10�
X7 1
Ptz, 't",

7HME c, STEWS RT u H >pC T E L 1 A 5-3441 : , (_1 , 3 2, 1 ; ' No . 00:3 R , 1
I
U
I 2
rr 1 s
�'17 � �
Nov 0 2 1992 U ( II
+� I 1%0j # 9Z0903 I �
I� ,,—PROPOSED STORM'd'AIER ( I
I^� DETENT?ON POND
- I
I � (.--OT_ ,ai. -Q III
i
I1
I
1I� O j FOaHKING LOT `\, �i 1
c
� I
CDASFAL CAROL INA
` x I COMMUNITY COLLEGE
i L.__� j U it
I
I
— We S i LRN BOUI_EVAPO l
I i o Iihl
VICINITY SKETCI-i
I
CGASTAL CAROLINA COMMUNITY COLT-EGE
-_ PARKING LOT NO. h
NGT '�U SCAi.E -----•-VT. _
James h': ti4 fe mart and Assucx�r.tes; lne. - - --
ENGIrdE�RlydG - SURVEY!NC - PLANNING
P.O. OBAN£R e78 [c�
JACK SON'J;LL[, NORTH CAROiJNA 28511--0070
81d-455-2�11

. ,
t�T`r
State of North Carolina
Department of Environment, Health, and Natural Resources
Wilmington Regional Office
James G. Martin, Governor Bob Jamieson
William W. Cobey, Jr., Secretary October 8 , 1992 Regional Manager
DIVISION OF ENVIRONMENTAL MANAGEMENT
Mr. Jim Owens
Coastal Carolina Community College
444 Western Boulevard
Jacksonville, North Carolina 28540
Subject: Additional Information
Stormwater Project No. 920903
CCCC Parking Lot #4
Onslow County
Dear Mr. Owens:
The Wilmington Regional Office received a Stormwater
Submittal for the CCCC Parking Lot #4 on September 8, 1992 . A
preliminary review of that information has determined that the
submittal for the subject project is not complete. The following
information is needed to continue the stormwater review:
1. Please show any incidental drainage to the pond from
the surrounding areas, including any runoff from
parking lot #3, and account for it in your calcu-
lations.
2. The pond side slopes should be graded at 3 : 1, H:V. This
will change either the surface area of the pond, or the
bottom pond surface area from what you have shown.
3 . Notarized Operation and Maintenance Plan for the
stormwater controls including name, address, phone
number and signature of the responsible party at the
bottom of the document. A separate sheet with the
notarized signature is not acceptable.
4 . Your pond design is based on a 30' vegetated filter,
however, . the outlet pipe discharges directly into a
ditch. Please provide a 30' vegetated filter before
entering the ditch.
-continued-
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 •Telephone [phone]• Fax [phone]
An Equal Opportunity Affirmative Action Employer

Mr. Owens
October 8, 1992
Stormwater No. 920903
- - - - - - - - - - - - - - - - - - - - -
5 . Provide a cross sectional detail of the vegetative
filter. Include side slopes with maximum steepness of
3 : 1, H:V, bottom width, grade, and vegetative
specifications.
6 . Please provide energy dissipation at the inlet pipe to
the pond, and a detail .
7 . The pond is being oversized to accept future impervious
areas, however the outlet structure must be designed to
detain the current project volume of 8, 748 CF and
release it in 2-5 days . Future additions to the project
impervious area must be reviewed by this Office to
substantiate that the pond will hold and release the
new design volume in accordance with the regulations .
8 . A cross section of the regraded existing ditch at the
point where the vegetated swale will enter.
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 8, 1992 , or
the submittal will be returned as incomplete.
If you have any questions concerning this matter, please
call me at (919) 395-3900 .
Sincerely,
Ms . Linda Lewis
Environmental Technician
DA/arl. : 920903 .00T
cc: (2) Linda Lewis
Central Files
Gordon R. McAdams, P.E. , James E. Stewart and Associates
2

a
' SPECIFICATIONS
' FOR
' STORMWATER DETENTION POND
' TO SERVE
COASTAL CAROLINA COMMUNITY COLLEGE
' PARKING LOT #4
JACKSONVILLE, NORTH CAROLINA
OWNER:
' COASTAL CAROLINA COMMUNITY COLLEGE
' JACKSONVILLE, NORTH CAROLINA
' August 1992
geepeeecn»,rG .
• I5`'
IS
125
.TAME:S E _ STEWART AN�js""`A'6SOCIA=S, INC.
Engineering - Surveying - Land Planning
P. O. Drawer 976
Jacksonville, North Carolina 26541 _
919-455-2414
tlju\(U\ SEP 6 1992
�nn4o9
1'ZO] $

a
a
a
0
0
a
a
Q
a
a
a
a
a
a
0
Copyrights© 1992 by James E. Stewart and Associates,
a
Inc. All rights reserved. No part of this document may
be reproduced in any form or by any meano without prior a
'written permission. Use of this document, except by
those dxpressly authorized, is strictly prohibited.

1
PROJECT INFORMATION SHEET
OWNER:
Coastal Carolina Community College
444 Western Boulevard
Jacksonville, North Carolina 28540
Contact Person : Jim Ovens
(919) 455-1221
ENGINEER: `
' James E. Stewart and Associates, Inc.
P. O. Box 976
Jacksonville, NC 28541-0976
' Contact Person : Gordon R. McAdams, P. E.
(919) 455-2414
1
1

COASTAL CAROLINA COMMUNITY COLLEGE
' PARKING LOT 04
STORMWATER DETENTION POND
' I. GENERAL REQUIREMENTS
1. Summary of Work
2. Field Engineering
' 3. Submittals
4. Testing Lab Services
5. Inspection/Certification
6. Guarantee
II. SITE WORK
1. Clearing and Grubbing
2. Excavation and Grading
3. Devatering
4. Backfill
5. Piping System
6. Grassing
7. Erosion and Sediment Control Measures
III . OPERATION AND MAINTENANCE
' IV. ENGINEERING CALCULATIONS
1

GENERAL REBUIRENENTS
' SECTION I
' 1. SUMMARY OF WORK
' The CONTRACTOR for this section shall furnish all materials,
supplies, equipment, labor, tools and all other incidentals
necessary to construct the Stormwater Detention Pond and
appurtenances, complete, and ready for use, as shown on the
' plans and as enumerated herein.
Work necessary for the construction of the Stormwater Pond
' 'includes but is not limited to clearing and grubbing,
dewatering, excavation, backfill, install piping system,
grassing, and erosion control as shown on the plans and as
outlined hereinafter.
1 2. FIELD ENGINEERING
' A. OWNER will establish base lines for the Project and two
bench marks for use by the CONTRACTOR. OWNER will
furnish boundary surveys if required.
' B. ' CONTRACTOR shall :
1. Develop and make all detail surveys and
' measurements needed for construction including
slope stakes, batter boards, and all other working
lines, elevations and cut sheets.
' 2. Be solely responsible for all locations, dimensions
and levels. No data other than written orders of
' the ENGINEER shall justify departure from the
dimensions and levels required by the Drawings.
3. Safeguard all points, stakes, grade marks,
monuments and bench marks made or established on
the work, re-establish same if disturbed and
rectify all work improperly installed because of
' not maintaining, not protecting or removing without
authorization such established points, stakes,
marks and monuments.
4. When requested by ENGINEER, provide such facilities
as may be necessary for ENGINEER to check line and
grade points placed by CONTRACTOR. Where
' applicable, CONTRACTOR shall do no excavation or
embankment work until cross-sectioning necessary
for determining pay quantities has been completed
and checked by ENGINEER.

GEN-2
3. SUBMITTALS
' The CONTRACTOR shall submit a minimum of three (3) copies of
all submittals, of the various materials and products, to the
ENGINEER for approval. Of these, one ( 1 ) copy will be
' returned to the CONTRACTOR.
Each set of submittals shall include but not be limited to :
1. Drawings showing all dimensions units and locations of
all other accessory equipment, including a piping layout.
' 2. All technical information needed by the ENGINEER to
determine if the proposed equipment meets the plans and
specifications.
' 4. TESTING LAB SERVICES
A. General : Testing of materials, testing for moisture
' content during placement and compaction of fill
materials, and of compaction requirements for compliance
with technical requirements of the specifications shall
' be performed by a testing laboratory.
B. Testing Services:
1. Test the CONTRACTOR'S proposed materials in the
laboratory and/or field for compliance with the
specifications.
' 2. Perform field moisture content and density tests to
assure that the specified compaction of backfill
' materials has been obtained.
3. Report all test results to the ENGINEER and the
CONTRACTOR.
tC. Authority and Duties of Testing Agency : Technicians
representing the testing laboratory shall inspect the
' materials in the field and perform tests, and shall
report their findings to the ENGINEER and the CONTRACTOR.
When the materials furnished or work performed fails to
' fulfill specification requirements, the technician will
direct the attention of the ENGINEER and the CONTRACTOR
to such failure.
' The technician shall not act as foreman or perform other
duties for the CONTRACTOR. Work will be checked as it
progresses, but failure to detect any defective work or
' materials shall not in any way prevent later rejection
when such defect is discovered, nor shall it obligate the
ENGINEER for final acceptance. Technicians are not
authorized to revoke, alter, relax, enlarge, or release
. any requirements of the specifications, nor to approve or
accept any portion of the work.

0
0
0
LJ
D
p
0
0

GEN-3
' D. Responsibilities and Duties of CONTRACTOR: The use of
testing services shall in no way relieve the CONTRACTOR
' of his responsibility to furnish materials and
construction in full compliance with the drawings and
specifications.
' To facilitate testing services, the CONTRACTOR shall :
1. Secure and deliver to the testing agency, without
cost, preliminary representative samples of the
materials he proposes to use and which are required
to be tested.
' 2. Furnish such casual labor as is necessary to obtain
and handle samples at the project or at other
sources of material.
' 3. Advise the testing agency sufficiently in advance
of operations to allow for completion of quality
' tests and for the assignment of personnel.
5. INSPECTION/CERTIFICATION
' As required by the North Carolina Division of Environmental
Management (DEM) , the ENGINEER will provide inspection
throughout the performance of this Contract and upon
' completion and final acceptance of the work by the ENGINEER
will certify to DEM that the pond has been constructed in
accordance with the approved plans and specifications. All
' directives issued to the CONTRACTOR will be through the
ENGINEER and direct contact will generally not occur between
the OWNER and the CONTRACTOR. Inspections will be made
' periodically or on a full time basis as the work progresses to
insure compliance with these specifications and with the
specification requirements shown on the plans. When requested
by the ENGINEER, CONTRACTOR shall provide his services to
' insure to the ENGINEER's satisfaction that all dimensions,
lines and grades are as designed. In order for the ENGINEER
to adequately inspect and approve this construction, testing
services shall be provided by an approved testing laboratory.
In addition, one set of record drawings of plans and
' specifications shall be submitted to ENGINEER prior to final
acceptance. Record drawings shall include any deviations from
'the plans and specifications including any change in pond
dimensions, locations, grades, and materials.
G. GUARANTEE OF WORK
' A. Except as otherwise specified, all work shall be
guaranteed by the CONTRACTOR and his sureties against
defects resulting from the use of faulty or inferior
materials, equipment, or workmanship for 12 months from

GEN-4
the date of final completion of the work as signified by
acknowledgement of receipt of Final Payment by the
CONTRACTOR.
B. If, within any guarantee period, repairs, or changes are
' required in connection with guaranteed work, which, in
the opinion of the ENGINEER, are rendered necessary .as
the result of the use of materials, equipment, or
workmanship, which are inferior, defective, or not in
' accordance with the terms of the CONTRACT, the CONTRACTOR
shall, promptly upon receipt of notice from the OWNER,
and without expense to the OWNER:
' 1. Place in satisfactory condition, in every
particular, all of such guaranteed work.
' 2. Correct all defects herein.
3. Make good all damage to the site, which in the
' opinion of the ENGINEER, is the result of the use
of materials, equipment, or workmanship which are
inferior, defective, or not in accordance with the
' terms of the CONTRACT.
4. Make good any work or material, or the equipment
' and contents of said building site, disturbed in
fulfilling any such guarantee.
C. If in fulfilling the requirements of the CONTRACT or of
' any guarantee embraced therein or required thereby, the
CONTRACTOR disturbs any work guaranteed under another
CONTRACT, he shall restore such disturbed work to a
' condition satisfactory to the ENGINEER, and shall
guarantee such restored work to the same extent as it was
guaranteed under such other CONTRACT.
I). If the CONTRACTOR, after notice, tails to proceed
promptly to comply with the terms of the guarantee, the
OWNER may have the defects corrected and the CONTRACTOR
' and his Surety shall be liable for all expenses incurred.
IV. ' All special guarantees applicable to definite parts of
' the work that may be stipulated in the specifications or
other papers forming a part of the CONTRACT shall be
subject to the terms of this section during the first
year of the life of such special guarantee.

' SITE WORK
SECTION II
1. CLEARING AND GRUBBING
' Clearing shall consist of the cutting, removal, and
satisfactory disposal of all trees, down timber, project
roots, stumps, lap wood rubbish, trash, and all other
objectionable material within the construction limits as
' directed. Any specific trees or shrubs designated to be saved
by the OWNER shall be protected from injury during
construction.
' Grubbing shall consist of the excavation, removal, and
disposal of all stumps, roots, logs, and other perishable and
' objectionable material within the construction limits as
directed.
All clearing and grubbing shall be accomplished in such a
' manner as not to injure or destroy any merchantable timber or
other property on land adjacent to the project site.
' Before any burning of debris shall occur, CONTRACTOR shall
contact OWNER and ENGINEER for permission and location and
CONTRACTOR will be required to secure ANY and ALL burning .
permits required. All perishable material shall be burned in
' such a manner as not to injure trees or shrubs outside the
project site or any tree or shrub designated to be saved. Any
material that cannot be completely burned will be removed and
disposed of at an off-site location at the expense of the
CONTRACTOR.
' 2. EXCAVATION AND GRADING
All grading and excavation shall be in accordance with typical
dimensions and cross-sections shown on the plans and
' specifications contained herein.
During excavation all topsoil suitable for reuse shall be
' stockpiled in an area designated by the OWNER. All soils
suitable for reuse as backfill material shall be stockpiled in
a separate area designed by OWNER. All soils unsuitable for
reuse shall be stockpiled in a separate location as designated
by the OWNER. Services of a testing laboratory shall be used
'to determine which soils are best suitable for reuse as
backfill.
' In areas requiring backfill to construct the pond dikes, a
minimum of 12-inches of topsoil and subsoil stripping shall
' occur prior to the commencement of backfill.

a
a
a
a
a
0
a
a
a
a
a
a
0
a
a
0
0

1
sw-z
DEWATERING
' 1. The CONTRACTOR shall provide and maintain adequate
dewatering equipment to remove and dispose of all surface
and ground water entering excavations, trenches, or other
' parts of the work. Each excavation shall be kept dry
during subgrade preparation and continually thereafter
until the structure to be built, or the pipe to be
installed therein is completed to the extent that no
' damage from hydrostatic pressure, flotation, or other
cause will result.
' A. The working areas on the site (exclusive of
sediment entrapment devices) shall be kept free of
surface water at all times. The CONTRACTOR shall
' install drainage ditches and dikes and shall
perform all pumping and other work necessary to
divert or remove rainfall and all other
accumulations of surface water from the excavations
' and fill areas. The diversion and removal of
surface water shall be performed in a manner that
will prevent the accumulation of water behind
' temporary structures or at any other locations
within the construction area where it may be
detrimental.
' B. Water used for working or processing, resulting
from dewatering operations, or containing oils or
sediments that will reduce the quality of the water
' downstream of the point of discharge shall not be
directly discharged. Such waters shall be diverted
through a settling. basin or filter before being
' discharged.
C. The CONTRACTOR is responsible for the condition of
any pipe, conduit or channel which he may use for
' drainage purposes and all such pipes, conduits or
channels shall be left clean and free of sediment.
2. The CONTRACTOR shall provide, install, and operate
sufficient trenches, sumps, pumps, hose, piping,
wellpoints, deep wells, etc. , necessary to depress and
' maintain the ground water level below the base of the
excavations during all stages of construction operations.
The ground water table shall be lowered in advance of
excavation and maintained two feet below the lowest
' subgrade excavation made until the structure has
sufficient strength and weight to withstand horizontal
and vertical soil and water pressures from natural ground
' water. The system must be operated on a 24-hour basis
and standby pumping facilities and personnel shall be
provided to maintain the continued effectiveness of the
' system. If, in the opinion of the ENGINEER, the water

a
0
a
a
0
0
0
a
D
a
a
0
0
0
0
0
0

1
SW-3
' levels are not being lowered or maintained as required by
these specifications, the CONTRACTOR shall install
additional or alternate dewatering devices as necessary,
at no additional cost to the OWNER.
4. BACKFILL
After completion of stripping the area to receive embankment
backfill and compaction, the CONTRACTOR shall place compacted
' backfill to construct the dikes for the stormwater pond in
accordance with typical dimensions and cross-sections shown on
the plans and requirements contained in the specifications
' herein.
Any soft areas of subgrade containing unsuitable, wet or
yielding material not readily capable of site compaction shall
be removed and replaced with compacted select borrow material.
Services of a testing laboratory shall be used to determine
which soils are suitable as select borrow material.
' All fill shall be placed in horizontal loose lifts not
exceeding 8-inches in thickness and shall be mix2d and spread
' in a manner assuring uniform lift thickness after placing.
Each lift shall be compacted by not less than two (2) complete
coverages of the specified compactor. The compaction of the
complete area of the backfill shall have a minimum compacted
' density of 95 percent as obtained by test procedures in ASTM
D 1557 (modified proctor) . Services of a testing laboratory
shall be required to provide the CONTRACTOR with the required
' compaction density results to insure compliance with the above
required compaction density.
No fill material shall be placed when free water is standing
' on the surface of the area where the fill is to be placed. No
compaction of fill will be permitted with free water on any
portion of the fill to be compacted. No fill shall be placed
' or compacted in a frozen condition or on top of frozen
material. Any fill containing organic materials or other-
unacceptable material previously described shall be removed
and replaced with approved fill material prior to compaction.
Each lift of compacted fill shall be compacted by the
designated number of coverages of all portions of the surface
of each lift by a smooth-drum vibratory roller for granular
material having a static weight not less than 5, 500 pounds, a
sheepsfoot roller for cohesive material exerting a pressure of
' :250 psi on the surface of the feet, or equivalent equipment
approved by the ENGINEER prior to commencement of the work.
One coverage is defined as the condition obtained when
' subjected to the direct contact of the compactor. The
compactor shall be operated at a forward speed not exceeding
40 feet per minute.

SW-4
' In some areas where soft soils are removed, it may be
difficult to properly compact the first lift or two on the
' base of the undercut area. I£ the base is excessively wet, a
working mat of compacted crushed stone shall be placed prior
to placement and compaction of the fill.
' 5. PIPING SYSTEM
A. GENERAL
1 The piping system required shall be constructed and
installed as shown on the plans and as further described
' herein. The stormwater pond piping system shall include
but not be limited to one 24-inch outlet pipe, one 24-
inch riser pipe, one trash rack, an anti-seep plate and
' all appurtenances required for a complete installation.
B. PIPING
' The piping included shall be to the diameters and lengths
shown on the plans. These pipes shall be fabricated of
corrugated aluminum made from alloys of ALCAD 3004 or
' 5052. They shall be helically corrugated Corlix as
manufactured by Kaiser Aluminum or an approved equal.
' All welding required shall be done in the factory. The
units shall arrive to the site ready for installation.
Flanges shall be welded to the pipes for easy connections
in the field. The flanges shall be bolted together using
' 3/8-inch stainless steel bolts, nuts, and washers and
using 3/16-inch neoprene gaskets.
' A trash rack shall be provided to the dimensions shown on
the plan. The trash rack shall include an aluminum grate
top with 1/2-inch openings welded to the top.
' An aluminum anti-seep plate shall be provided and
installed per the dimensions and locations shown on the
plans.
' G. GRASSING
A. DIKES AND EMBANKMENTS
The CONTRACTOR after grading and shaping the dikes and
remaining areas as shown on the plans, shall furnish
' labor, tools and equipment to till and seed any and all
areas, as outlined hereinbefore under site work.
The entire area shall be given one application of
agricultural lime at the rate of 2, 000 pounds per acre;
super phosphate at 500 pounds per acre; a 12-4-8 grade
fertilizer at the rate of 600 pounds per acre, all
' harrowed to a point that it is thoroughly mixed with the

0
a
a
a
0
0
0
0
a
0
0
0
0
0
0
0
0
0

SW-5
soil. The Contractor shall then furnish and sow, Rebel
Fescue seed, at the rate of 100 pounds per acre mixed
' with 25 pounds per acre of Bermuda.
A suitable cover of straw mulch shall be placed at a rate
' of 1. 5 to 2 tons per acre on the entire area following
the sowing operation. The CONTRACTOR shall then wet down
the entire area to prevent the straw mulch from blowing
away and to assist in earlier germination. In the case
' of extreme slopes, the straw mulch shall be stabilized by
the application of an asphalt or other approved binding
material.
' The Contractor shall guarantee a full stand of grass over
the entire area. A stand of grass shall be considered
acceptable when cover is at least 95 percent.
B. VEGETATIVE FILTER AND SPILLWAY
' A vegetative filter will be provided to the dimensions
shown on the plans at the outlet of the piping system.
The filter shall consist of Reed Canarygrass which shall
' be sown at a rate of 40 pounds per acre. The Canarygrass
should be sown during the months of August to September
or February to April. During other periods of the year,
it shall be sown with rye grass at the rate of 60 pounds
' per acre to guarantee a stand until such periods of the
year when the Reed Canarygrass can be sown.
' The soil preparation of limes, super phosphates and
fertilizers; the placement of a mulch cover and the
guarantee of a stabilized stand shall be as previously
specified.
To aid in control of erosion and to aid in germination,
a biodegradable protective mat shall be placed and
' anchored over the prepared soils and grass seedlings.
The protective mat shall be the Curlex Excelsior Blankets
as manufactured by American Excelsior Company or an
' • approved equal. The Excelsior Blanket shall be anchored
as recommended by the manufacturer.
The spillway and its backslope and outfall shall also
receive the Excelsior Blanket to aid in erosion control
and germination. The spillway shall receive the same
grass covering as specified for the entire dike and
' embankments.
7. EROSION AND SEDIMENT CONTROL MEASURERS
' A. NARRATIVE REPORT
' The CONTRACTOR'S attention is called to the Narrative
report on Erosion and Sediment Control Measures for
Coastal Carolina Community College Parking Lot #4 as

1
SW-6
prepared by James E. Stewart and Associates, Inc. The
"Narrative Report" will generally govern the basic work
' to be provided for the erosion and sediment control
measures and seeding and grassing.
' The ENGINEER may direct minor changes in the shape,
sizes, dimensions or materials for the construction of
erosion and sediment control facilities from those
specified in the "Narrative Report".
' B. LOCATIONS
' The erosion and sedimentation control measures shown on
the plans, as specified herein and within the "Narrative
Report", indicate the approximate locations of those
measures on the basis of the existing topography within
' the area or on the basis of the predetermined need for
any specific area. Upon commencement of the operations
in those areas where measures are proposed, the ENGINEER
' may make minor adjustments in location.
C. VIOLATIONS
' It will be the CONTRACTOR'S responsibility to provide the
erosion and sediment control measures as shown on the
plans or as otherwise specified in the Contract Documents
' or as directed by the Engineer. The CONTRACTOR is
cautioned that these facilities will be installed as
shown on the plans and/or as directed by the ENGINEER
' during the construction process. Any citations,
penalties, or fines issued by the N. C. Department of
Natural Resources and Community Development or any other
' agency resulting form negligence of the CONTRACTOR not
providing the specified facilities will be the sole
responsibility of the CONTRACTOR and the CONTRACTOR shall
hold the ENGINEER or OWNER harmless from any resulting
' damages or fines.
1

' OPERATION AND MAINTENANCE
SECTION III
1
To assure that the stormwater pond operates as it was designed,
proper maintenance of the stormwater pond and all appurtenances are
necessary. Coastal Carolina Community College, as OWNER, will be
responsible for proper maintenance of the pond. The following list
is a guideline to help the OWNER properly maintain this system.
1 1. To assure that the pond will not fill with sediment during the
construction period of Parking Lot #4, it is imperative that
' the erosion and sediment control measures designed be
installed and maintained properly to prohibit any sediment
from entering the pond until stabilization of the entire site
' has occurred.
Grassing requirements should be followed strictly and a stand
of grass shall be provided within 30 days to stabilize the
' dike and embankments and assure minimal erosion.
Rip rap structures should be installed and maintained as shown
' and described in the plans and the erosion and sedimentation
control "Narrative Report" to help reduce erosive velocities
of stormwater encountered.
' Once stabilization has occurred these items should be checked
on a monthly basis and properly repaired should any damage
occur.
' 2. A pumping system will be required to completely drain the pond
for maintenance. Bottom of pond elevations should be checked
' every year to determine the amount of sediment build-up. If
sediment build-up is greater than one foot, the pond should be
drained and excavated to the original pond bottom elevation.
3. The riser pipe, trash rack and small orifice opening should be
checked every month to assure no clogging of the system or
damage to the system has occurred. The trash rack screen and
' small orifice should be cleaned monthly to assure proper
operation of the pond.
' 4. Mow back slope of dam frequently enough to preclude growth of
trees which may result in soil piping along root channels.
1
1
1

a
a
a
a
a
a
a
a
a
a
a
a
a
0
a
a
0

' COASTAL CAROLINA COMMUNITY COLLEGE
PARKING LOT @4
' STORMMATER DETENTION POND
ENGINEERING CALCULATIONS
1. AREA
' Total Area Draining to Pond. . . . . . . . . . . . . . . . . . . . . . . . 2. 41 Acres
Total Impervious Area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. 33 Acres
of impervious area = 96. 7%
2. PERMANENT POND SURFACE AREA
' From Chart 3 - Appendix E from D. E. M. Report 87-05, interpolate
for 96. 7% impervious, 5. 0 basin depth with 30 foot Vegetative
' Filter Yields SA/DA = 5. 3%
2. 41 acres x 5. 3%✓= 0. 128 acres or 5, 576 S. F. surface areav/
r_eguired
Top of permanent pond elevation is 38. 1
' Area at 38. 1 elevation = 0. 184 acres or 8, 000 S. F. provided
q&&7
' 3. TEMPORARY DETENTION STORAGE VOLUME
1" X 2. 41 acres = 2. 41 in - acres
' 2. 41 in - acres x 3, 630 C. F. = 8, 748. 3 C. F. required _ � q D)
in acres D -
' 4. TEMPORARY DETENTION STORAGE HEIGHT
cl(APT
Area at 38. 1 elevation ( permanent pond) = 8, 000 S. F. = 0. 184 ac.
tArea at 39. 2 elevation ( temporary pond) =10, 227 S. F. = 0. 235 ac.
Average area = 9, 114 S. F. 9S9
T
Storage volume = 9, 114 S. F. x 1. 1 Height = 10, 025 C. F. provided
5. RELIEVE TEMPORARY STORAGE VOLUME IN 2 TO 5 DAYS
' 0 = Cd A �h (orifice equation )
0 = 10, 025 C. F. ? 2 days = . 058 CFS
' 9 = 10, 025 C. F. 5 days = . 023 CFS
Cd = 0. 60
g = 32. 2 ft/sec
' h = 0. 55 average height

0
0
0
a
a
a
a
a
a
a
0
0

1
' ENG-2
Solve for A , A = 0. 016 S. F. = n R'
Then Orifice Diameter
' For 2 Day
Release R = 0. 72 ft. = 0. 86 inch
' D = 1. 7 inch
Solve for A , A = 0. 006 S. F. = n R'
' Then Orifice Diameter
For 5 Day
Release R = 0. 045 ft. = 0. 54 inch
D = 1. 09 inch
Use 1. 5-inch diameter orifice
' 6. SIZE INLET RISER PIPE AND OUTLET PIPES TO HANDLE 100-YR, 10-MIN.
STORM (Riser will serve as emergency relief)
' A. Storm Flow
9 = CiA
' A = 2. 83 acres ( pond and parking)
C = 1. 0
i = 8. 39 in/hr
' 0 = 1. 0 (8. 39) 2. 83 = 23. 8 cfs
B. Inlet Riser Pipe
1 Water height before topping pond = 43. 0 - 39. 2 = 3. 8
' O = Cd A 2g (orifice equation )
' Cd = 0. 6 (typical value)
H = 3. 8
9 = 23. 8 CFS
' 2g = 64. 4
Solve for A, A = 2. 54 S. F. = rt R'
R = 0. 81 ft. = 9. 7 inches
' Diameter = 19. 4 inches
Use 1-24" pipe (allows for future pond expansion)
C. Outlet Pipe
Use reference Chart 5, Bureau of Public Roads Jan. 1963
Setting invert of outlet pipe at 38. 1 with top of pond at
43. 0
' Hw = 43. 0 - 38. 1 = 4. 9
' Diameter = assume 24"

0
a
0
0
0
0
o

t ENG-3
XM_ 4 .9 =2 .4
' D 2
Entrance Type 1
' From chart, O = 30 CFS > 23. 8 CFS
' Use 1-24" pipe
1
1
1
1
1
1

�(Vv/SC� � •\y�J
Enoirieer ' s Certification
I , Gordon R. McAdams , P.E. as a duly registered
Professional Engineer in the State of North Carolina, having been
authorized to observe periodical) /weekly/full time) the
construction of the project,
Stormwater Detention Pond
Coastal Carolina Community College Onslow County, North Carolina
( Project) Parking Lot
Project No. 920903
for the Coastal Carolina Community College hereby state that, to
(Project Owner)
the best of my abilities , due care and diligence was used in the
observation of the project construction such that the
construction was observed to be built within substantial
compliance and intent of the approved plans and specifications .
SSN9SIOP]AY191.
CARot
Signature / — s'"2�� ESS(0/y�•4 I��;
Registration Number 14125 s4 $EAl
14125
Date IL A CO
�pPtifiVIMEE`� Qrr=e
a0� y
a� .
'o,,,VN R. MAP.•�
~11..13u N•''
i
'S E P 0 8 1993 IUJ
< <fZocio3

�rimel C�;,S/3e�cm►y` and��Joncra�J�L/�/�
CONSULTING ENGIMEEAS .Pp LAMO SURMCPS
LETTER OF TRANSMITTAL RECEIVED AL..oN.ILL� �.�AAWE�l XA ,.ST, 0114
SE.'
4 tco9 NS.a laaN
TO: Date- September 3, 1992
Mr. Dave Adkins, Regional Supervisor yy'Imin�tcn Regional &' �: M--D Dave Adkins
Ref: __ Coastal Carolina Community
___ 13.C. beparEment of Environment, $ealtTi and----- College, Parking LotA
Natural Resources--Water ------- ---------.._._--""--
-___-_ _ Qualit Section -"------'------'"
________---___ _---__y_ Stormwater Submittal
---- -------------- -----------------------------------
_ Dlvisiou of Environmental Management
127 Cardinal Drive Extension
Wilmington, North Carolina 28405-3845 JESA Jok No. -.--.-______..._-.._ -__.-_-. _
GENTLEMEN:
WE ARE SENDING YOU ® ATTACHED [] UNDER SEPARATE COVER
❑ PRINTS ❑ PLANS ❑ SPECIFICATIONS
❑ COPY OF LETTER ❑ OTHER ------------------------- ------------- --- -----
DESCRIPTION:
-_ Three (3) sets of plans and specifications , one (1) Submittal Form for Projects
Not Using Density Limits for Stormwater Control, and one (1) submittal authorization
letter for the above referenced project.
-------------------------------------------------------------------------------------------------
--------------------------------------------------------------------------------------------------
THESE ARE TRANSMITTED AS CHECKED BELOWs
Z3 FOR APPROVAL O AS REQUESTED
❑ FOR REVIEW AND COMMENT ❑ FOR YOUR USE .
OFOR BIDS DUE ---------------------------------------------------------------------- 19-----
❑ PRINTS RETURNED AFTER LOAN TO US
❑ OTHER ------------------------------------------------------------------------------------
--------------------------------------------------------------------- ----------
-------------------------------------------------------------------
----------------------------------------------------------------Pa01-A---2- o -Q3---- ---------
-------------------------------------------------------------------------------------------------
--------------=------------------- ------------
Gordon R. McAdams , P.E.
COPIES TO: _ Mr. Kenneth-Phelps- (w/_enclosures)
Mr. George Hillebrand l;w)enclosures) '
CF (P) (If enclosures are not as noted, kindly notify us at once)
GRM/mew

CONSULTING ENGINEERS-LAND SURVEYORS
306 NEW BRIDGE STREET
P. O. DRAWER 976
JACKSONVILLE, NORTH CAROLINA 28541-0976
919.455-2414
bubmittal Form for Projects Not Using Density Limits for Stormwater Control
Name of Project : Coastal Carolina Community College, Parking Lot #4
Location : Coastal Carolina Community College
Jackosnville, NC
(Applicant Name : Coastal Carolina Community College
Mai I i ng Address : 444 Western Boulevard
Jacksonville NC 28546
Phone No. : 455-1221
1 =- the water receiving stormwater runott cIassltled as SA?
Yes No %
Signature - 6wner--o , Agent Date
U U SEP 8 1992 U
D E M
rzoj 9ao9o3
U6-dY

(Owner ) , do hereby authorize
James E. Stewart and Associates to act on my behalf in
processing the stormwater submittal application for Coastal
Carolina Community College, Parking Lot #4, Jacksonville.
(Project ) (Location)
I" la
&Signature
Date '
North Carolina
6IX1A9ztk- /,C.o'unty
I, d/ a Notary Public for said County and
State, do er y certify that personally
appeared before me this day and acknowledged the due
execution of the foregoing instrument.
Witne my hand and official seal, this the ISI day of
�aunu ""19SO
9�
�.:...
f , . Notary Public
My Commi 10.-axpY
SL
lUn(U SEP b 1992
DEM
rzol # 990 03
D: \FDOC\CCCCAPP. DOC

I
2vq C)3
lo- t3-g2
----- -------- - - -- -- -- ------- - ----- --------------------
----- --- - Gamin- �- 'aw 5- - - - ----- -- -------- - - --
----- 'Pr'e
whey-- ---- --
-- - ---------- --=-
- - -- -- --- ----/(2n __W a�er
----- --- -- - ycv--Y-
900c( __-- �li�n1e� oiss,�zs ar cv�cree _

PARKER & ASSOCIATES, INC. Shaping Horizon'
Consulting Engineers - Land Surveyors- Land Planners
306 New Bridge Street - P.O. Box 976
Jacksonville, NC 28541-0976
[phone] - Fax: [phone]
August 16 , 1993
Ms. Linda Lewis AUG 19 1993
Division of Environmental Management
127 Cardinal Drive Extension
Wilmington, North Carolina 28405
RE: Stormwater Project No. 920903
Coastal Carolina Community College
Parking Lot 94
Onslow County, NC
Dear Ms. Lewis:
I received a copy of your August 12, 1993 letter to Mr. Jim
Owens concerning the referenced project. In regards to the
Engineer' s Certification, our office has not issued one at this
time because the project is not complete and has not been accepted
by the owner.
One item which we are waiting on is the establishment of a
good stand of grass in the vegetative filter at the outfall pipe
from the pond. Until this occurs, we can not certify that the
project complies with the project plans and specifications.
We anticipate the project being completed within the next few
weeks . At such point, we will issue the required certification to
your office. In the meantime, if you have any questions or need
any additional information, please give me a call.
Very truly yours,
PARKER & ASSOCIATES,
INC.
Gordon R. McAdams, P.E . nnn a nnn nnn(�
xc: Jim
((aT( ORMW TER
xc: Jim Owens 1�1N u
Ed Penuel
Ed Barrus
Tom Roark �uw�( U
CF' (P)
1UG 2 C 1993
ENVIRONMENTAL ENGINEERING ■ STORM WATER MANAGEMENT ■ WATER AND WASTEWATER SYSTEMS
DEVELOPMENT CONSULTING ■ FEASIBILITY REPORTS 0 ENVIRONMENTAL SCIENCE ■ CONSTRUCTION PLANS

~ 11 Dn
I Ttl
�I df
n4V w.n Ate,.
State of North Carolina
Department of Environment, Health, and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor DIVISION OF ENVIRONMENTAL MANAGEMENT Bob Jamieson
Jonathan B. Howes, Secretary Regional Manager
August 12, 1993
Mr. Jim Owens
Coastal Carolina Community College
444 Western Boulevard
Jacksonville, North Carolina 28540
Subject: REQUEST FOR ENGINEER'S CERTIFICATION
Stormwater Project No. 920903
CCCC Parking Lot #4
Onslow County
Dear Mr. Owens:
On November 2, 1992, the Division of Environmental Management issued a Certification of
Compliance with Stormwater Regulations for CCCC Parking Lot N4. Stormwater Regulation 15A NCAC
2H.1003(k)(3) stipulates the following:
Upon completion of construction, a registered professional appropriate for the type of
Stormwater system designed must certify that the system was inspected during construction
and was constructed in substantial conformity with plans and specifications reviewed by
the Division and complies with the requirements of this rule.
As of this date, the required engineer's certification has not been received. Operation of the
stormwater system prior to submission of the required certification is in violation of NCAC 2H.1003(t)
in accordance with NCGS 143-215.6A. Please submit the required certification (attached) immediately.
If you have any questions concerning this matter, please call Ms. Linda Lewis or me at [phone],
Sincerely,
GIG{
Dave Adkins
Water Quality Supervisor
DA/arl: S:\WQS\STORMWAT\PEREQ\920903.AUG
cc: Mr. Marshall Batchlor, Onslow County Inspections
Mr. Gordon R. McAdams, P.E., Parker and Associates
(2) Linda Lewis
Central Files
127 Cardinal Drive Extension, Wilmington, N.C.2WS-3945 • Telephone [phone] • Fax [phone]
An Equal Opportunity Affirmative Action Employer

Cr�esFe Cap-t�lirla . 4Zp`t03 _
Orates
/oerV�GuS = Z. 33 a c = - 0 -5 — -
_ GrQe� areas = 38 ec oU3
Z - z-3y -
c7o 2.�/ = `1(0. 7 7o
s' de,
_ r90 4, 17 -7
�o `°7 �? X JI 8 y 8 ----
-
5A 2.I-F X , os 3 = :12349 = 53-79 5-F
(�roV�c�ed = BO00 s�
Volumes _ (2. 33x
— Dep+h _ $3 8000
Vo�ume a f�rrJ/��a-✓ �ffWL) .
5� = 1ozl?7 yf — �000 zz7� I _ /o, o2sc�P
Cry Fire
r —a3rt- CA
—/A (s4.4- .ss
,41
5 s Q , a3,143z000 = . Oil 92 —
t4 _ .UIgZ ,Co

--
-- -- - - -- -------- ---------------- _--- -
a� �Srw 4f St•»(�+�2 a•Scnff �� �����n�----�� — -------- - --
�b�" -
( f
I
- �SOo b Z VS-
d)c I = I)A
se -pro--)
Z �foura afvq. rio� S' 40/ �ui�r2d - sago- Z
-- -- ---- - -- - - - - --------- --- - - ---- --------- -- - -
- nqT11 - -- --- --
o� -
,4 ��1, r..,7'��i�f2�r` j'�'1 lJ�...�.��\�.��� C� =a�`}V o�M. 1�p1 :+,•_

�cc-�_ TC1� Q�i'2�i� u12 �Yar►. 3U/rpU�/O�iilr� �2c�S.
38. 0000
- .tom � •i` - , .•