SW7971015_HISTORICAL FILE_19980213

FEB 13 '98 04:31PH MCRS NRER CHERRY PT 919 466 2000 P.1
From: Borden Johnson Date: 02/13/98
To: Bill Moore Time: 3:29 FM
Company: AH Environmental FAX#: [phone]
Mr. Moore:
Here is a copy of the sslonod Permit Application for MCAS Cherry Point's
Operations/Maintenance Facility. Regret any inconvienence.
I have received a copy of the new permit Application Forms.
Thanks for your help.
sincerel I
Bor . J n
VOICE: 919-466-5297 FAX: [phone] DSN 582-2000

FEB 13 '98 04:31NWIH t WCA CHERRY PT 919 466 2000 P.2
NORTII CAROLINA STOIL\rWATEA MAINAGEAffiNT PERMIT APPLICATION
I. GE..vRRAL iNrFownkTION
1. Proj= Name MOON Project P-827, Operations/Maintenance Facility
2. Location, directions to project (include Counry, Address, State Road) Attach map. Cherry Poi nt MCAS
Craven rnunty% See-attached sheet 11 _
3. Owner'sName Maj. Gen. George M. Karamarkovich Phone (919) 466-4789
Commanding General
4.Owner's MailingAddress M .AS rharry Point 1a FnvirnnMantal Af aire nazi PSC Rnx ROM
City Cherry Point State—AL—Zip 78533-M0 6
5. Application date 5entember 109 1997 Fee enclosed $_38 nn
6.Nearest Receiving Stream Hunters Branch. Trib. to Slocum Class SC SW NSW
reek
7.Projectdescription Coast uction of 7 buildinos'orovidina areas forillgintenance and storage
of tanker trucks and engineering equipment, and parking for facility users.
Ii. PERMIT INFORMATION
1.PenWt No.rro befdledbtbyDEN)
2.PermitType X New Renewal Modification(existing Permit No.)
3. Project Type; _Low Density _Detention_Infiltration Other: Redevelop General_Air Cert
4. Other 5tate/Federal Permits/Approvals Required (cheek appropriate Markel
CAMA Major SedimentatiowMrosion Control X 404 Permit
M. RUMT CAPON AREA (Picot sad NCAC 2x.1005 th.0.10071or applicable deity h ate)
Dra� inane BreakdowImpervious of _Are
Basin Amin (Please bdicats below the dea(gn bnperviaaa area)
Classittcatiou High Density ensity Buildings 0.40• Ha (1.QO_AQ
Allowable Impervious Area Streets O:4R Ha f 1.04 ACC
Total Project Area 7.5 Ha (18.5 AC) Parking/SW 3.7 Ha 59.14 AC
Proposed Impervious Area .4.7 Ha (11.7 ACC Other MARL - 0.19 Ha (0.47 AC
% Impervious Area 72.5% Totals 4.7 (11.7 AC
.V. STORNMATER 'TREATMENT (Dareribe how the mngfwill be treated)
converging to a wet detention p_ond. ,._,.,,_,.,

FEB 13 '98 04:31PM MCRS NRER CHERRY PT 919 466 2000 P.3
Y. D PROTECTIVE COVENANTS
RESTRXCTIONS AND PROTECT COVENANTS
Deed restrictions and protective covenants are required to be recorded for all low density projects and all
subdivisions prior to the sale of any lot. Please see Attachment A for the specific items that must be recorded
for the We of project applied for.
By your signature below,you certify that the recorded deed resaictions and protective covenants for this project
shall include all the items required by the permit, that the covenants will be binding on all parties and persons
claiming under them, that they will run with the land, that the covenant cannot be changed or deleted without
concurrence from the State, and that they will be recorded prior to the sale of any lot,
V1. OWNULIS CERTIFICATION
1, _B,Il:_dL'lS�n_Fnvirnnmenta11 Affairs Offiptertify that the information ingluded on this permit
(PE p/vn IMyPC�deaAgJ by direction of the Commanding Genera ,
application form is correct, that the project will be constructed in conformance with the approved plans, that
the deed restrictions will be recorded with all required permit conditions,and that to the best of my knowledge,
the proposed project complies with the requirements of 15A NCAC 2H.1000,
X authorize the below named person or xfIrmL; Lt stormwater plans on my behalf.
It
r! thoriz(#Ag t ignature&d Tide- mte
VM AGF24T AUTHORIZATION rarvsr=coatp==)
Person of firm name Piedmont Olsen Hensley
Mailing Address 2301 Rexwoods Drive, Suite 200
City Raleigh. State NC Zip 27607 Phone (919) 782-5511
Please submit application, fee, plans and calculations to the appropriate Regional Office.
cc: ApplicantfWiAO//Central Files
Office use only

LcnIVK raxvjiyy(Do(to Jul JU 7! 1J•Uo r.UJ/U4
POND MAINTENANCE REQUIREMENTS
ProjeetName: MCON Project P=827 Operations/Maintenance Facility
Peinittee ;, MCAS Cherry Point; Environmental Affairs Dept.
Address: PSC Box 8006, Cherry Point, NC 28533-0006 PhoneNo. (919) 466-4789
I. Monthly; or after every runoff producing rainfall event, whichever comes first:
A. Inspect the trash rack; remove,accumulated debris, repair/replace if it is not functioning.
B. Inspect and clear the orifice of any obstructions.:If a pump is used as the drawdown
mechanism, pump operation will be checked. A log of test runs of the pump will be kept
on site and made available to DWQ personnel upon request.
C..' Inspect the pond side slopes and grassed Inlet swales; remove a ash, and repair eroded areas
before the next rainfall event.
If the pond is operated with a vegetated filter, the filter will be checked for sediment.
accumulation, trash accumulation, erosion and proper operation of the flow spreader
mechanism. Repairs/cleaning will be done as necessary.
kt. Quarterly;(Four times a year):
A. Inspect the collection system Cie. catch basins,. piping, grassed swales) for proper
fimctioning. Accumulated trash will be cleared from basin grates, basin bottoms, and piping
will be checked for obstructions and cleared as required.
BJ'41 Potzd inlet pipes will be checked for undercutting. Riprap or other energy dissipation
siructaies will be.replaced, and broken pipes will be repaired.
ITI. Seth anpually.(twice a year):
A.: Accumulated sediment from the bottom of the outlet structure will be removed.
B T1ie forebay depth will be checked at various points. Sediment removal is required when the
depth is reduced to 75% of the original forebay design depth of
C. - Girassed swales, including the vegetated filter if applicable, will be reseeded twice a year as
necessary.

POND MAINTENANCE REQUIREMENTS
IY; Amin.}Iyi(Once a year):
Tite pond depth will be checked at various points. Sediment removal is required when the
depth:iS reduced to 75% of the original design depth or T, whichever is greater. Design
depth isi.55M/ 51, measured vertically from the orifice down to the pond's bottom.
sediment must be removed to at least the original design depth.
,. Sr General.,
A ,i Mowing of the side slopes will be accomplished according to the season. Maximum grass
+'- height,will be 6"
]8..: CA are encouraged.along the pond.perimeter, however they will be removed when they
cover wore than 1/2.the surface;area of the pond. The best time to cut them is at the end of
tha;growing season, in November. Environmentally sensitive chemicals for use in killing
cattails can also be used. Contact your nearest Agricultural Extension Agent,
The orifice/pump is designed to,draw clown the pond in 2-5 days. If drtwdown is not
accomplished
'in that time, the orifice will be replaced with a larger or smaller orifice. Slow
dsawdo�un may be.attributed to'a clogged system. The source of the clogging will be found
and eliminated.
I1 : All;conponents of the detention pond system will be kept in good working order. Repair
or replacement components will meet the original design specifications as per the approved
stormwate.r plan. If previously approved components are determined to be ineffective, the
component must be redesigned and/or replaced.
Spepal Requirements:
F.
I RADFORD, SUPERVISORY ENVIRONMENTAL ENG hereby acknowledge that I am the financially
by drection of the Commandin General ,
clemly
(Plga,e p.mror
fo maintenance)
ain enance)of this detention pond. Itwill be resp n ible for the performance of the
r,irspomrbleparty
maintenance hs outlined above, as part the Stormwater Management Permit received for this project.
5igna i Date:
:RtMi"42f15Y 7

DEHNR Fax:[phone] Jul 30 197 15:05 P.02iO4
DETENTION POND ATTACEMONT
I BiJi)CTfJPON AREA E ALC4*110N(5ee N01 C 2H.1008(c)and.(e).for applicable design criteria. In cases
where'rrioze than one is proposed,please list each pond's information in separate columns.)
Pond!i
Clae8li"IC&titin {♦�1L♦ OFy.1�tTI
B stttig BWWUpon Area —
Proposed<Built YponArea A �Il,usac
Total.Project Area (D•S HA (9,Og lac
Total Drautage,Area 7 A S I4 A I v,lie,A,o,
G
PerCg4t BuHt'FJpon
II :BREASDOWAI UF.PROPOSED BIMT-UPON AREA
,Bull Q.3 NA o.9>AL
,. ainss �. ��
tot=y avaot — —
Stceet/fig- O. Zud I,o3nc�
Sidewalks�P�+RIu�dG^f 3, 6
Future Devel6pment
Other I: MARE (G-,gnu D, 1 gua D,�I I0 AG)
III ': FUND DESIG`lY
Pond Depth 1:5 (A 0,25 FT
aSS Emit(83.% oe 90%) `(0 �o
SAiDA
Ragul kSur&ce Area OPP D,�f3 HP, 1.19 Ac
pfovtiled Surface Area;DPP r�,y 8 NA 1•i 9°
\I 1
� . Ilet]fl1Itd:VOlui[le — v/ QO
q--L Z90 Fr'
Prooi�ed Volume . 22`�M� 1�9 Z��i frZ>�. o�w�iloW e)e,..
PermanentP4gf.Elevation 60
Storage;Pool, levation
S,oS
1
StoTag¢'Pool Surface Area QG�
Forebay Depth D,a M �2,l9 FT
1.y': See';Akl+Khtnctit`.A fur'ppectfic]sngea8o that must be used for projects aynt propose the nokxliv:aion end selling of lots or ontpwrccic, or
1U1V0:f1iWt'B i10V010�11Itent,ataw9..

Check stormwater boxes in
DWQ storage room for plans
that go with this project .

OF WATEgo Michael F,Easley,Governor
�O G William G.Ross Jr.,Secretary
rNorth Carolina Department of Environment and Natural Resources
O Y Coleau H.Sullins,Director
Division of Water Quality
June 12, 2007
MCAS Cherry Point
Attn: Mr. George W. Radford
Environmental Affairs Dept
PSC Box 8006
Cherry Point, NC 28533-0006
Subject:: Stormwater Permit No. SW7971015
Operations/Maintenance Facility P-827
Craven County
Dear Mr. Radford:
The Division of Water Quality issued a Coastal Stormwater Management Permit, Number SW7971016
for USMCAS Cherry Point— Ops/Maint Facility P-827 on March 5, 1998. This permit expires on March
5, 2008. Section .1003(h) of 15 A NCAC 2H .1000 (the stormwater rules) requires that applications for
permit renewals shall be submitted 180 days prior to the expiration of a permit and must be
accompanied by a processing fee, which is currently set at $420.00. If this is still an active project
please complete and submit the enclosed renewal application in a timely manner. If this project has not
been constructed and a permit is no longer needed, please submit a request to have the permit
rescinded. If you have sold the project, or are no longer the permittee, please provide the name, mailing
address and phone number of the person or entity that is now responsible for this permit. Enclosed is a
form for change of ownership, which should be completed and submitted if the property has changed
hands.
Your permit requires that upon completion of construction and prior to operation of the permitted
treatment units a certification of completion be submitted to the Division from an appropriate designer
for the system installed. This is to certify that the permitted facility has been installed in accordance with
the permit, the approved plans, specifications and supporting documentation. Please include a copy of
the certification with your permit renewal request and processing fee. Enclosed is a copy of a sample
certification. Also enclosed is a new Operation and Maintenance agreement that should be completed
and submitted along with your renewal application.
You should be aware that failure to provide the Designer's Certification and the operation of a
stormwater treatment facility without a valid permit, are violations of NC General Statute 143-215.1 and
may result in appropriate enforcement action including the assessment of civil penalties of up to
$10,000 per day.
If you have any questions, please feel free to contact us at 252-946-6481.
Indg , egional Supervisor
Surface Water Protection Section
Washington Regional Office
Enclosures
cc: Piedmont Olsen Hensley, 2301 Rexwoods Dr.,Suite 200, Raleigh, NC 27607
Ve"W"hington Regional Office
North Carolina Division of Water Quality Internet: www.ncwaterqualitv.ore One
943 Washington Square Mall Phone[phone] NOrthCarohna
Washington,NC 27889 Fax [phone] l/
An Equal Opportunity/Atfinnatve Action Employer-50%Recycled/10%Post Consumer Paper Naturally

« ° UNITED STATES MARINE CORPS
MARINE CORPS AIR STATION
- vsc Roz eo33
CHERRY POINT,NORTH CAROLINA 23533-0 3
5090/2800
LN
25 Sep 97
Mr. Bill Moore
North Carolina Department of Environment RECEIVED
and Natural Resources WASHI";'• _.' -FlcF
Water Quality Section OCT 0 �7
943 Washington Square Mall
Washington,North Caroilina 27889
Dear Mr. Moore:
Enclosed for your review and approval are stormwater management plans for the construction of
an Operations/Maintenance Facility aboard Marine Corps Air Station, Cherry Point, North
Carolina. The package contains two copies of the Stormwater Management Narrative and
Calculations, two copies of the civil construction plans, and a check for $385.00.
If you have any questions on this application, please contact Mr. Borden Johnson of the
Environmental Affairs Department at [phone].
Sincerely,
F
ervi ry
nvironmental Engineer
By direction of
the Commanding General
Encl:
(1) Stormwater Application
Copy w/o enclosures
Brett Wiggins
Piedmont Olsen Hensley
Post Office Box 31388
2301 Rexwoods Drive Suite 200
Raleigh, North Carolina 27607

09/05/98 08:30 FAX [phone] ARCADIS Geraghty Miller ►tJ001
ARCADIS GERAGHTY& MILLER PM
ARCADIS Geraghty&Miller,InL
2301 Remoods Drive
Suite 200
TELEFAX Raleigh
North Glollna 27607.3369
Tel [phone]
To: copies: Fax 919 782 S905
Mr.Bill Moore Dale Lee
N.C.Division of Water Quality
TALR
Fax: Date:
[phone] 4 Match 1998
From: Total pages:
Randy King 3
exrenslon: Our mf;
[phone] 39596 0000
subject:
MCAS Cherry Point Operations&Maim. Complex
If you do not etoetva all pages,please call to let us hnovl as soon es possible.
Bill,as we discussed,we are sending you the revised orifice calculations for the stonnwater riser, You will
see that one 4"diameter pipe is substituted for the multiple smaller pipes. The calculations have been
adjusted to reflect this change. We also looked at combining the(2) 8"primary outlet pipes, but found that
this caused too much reduction in the clearance between Vie top of pipe and the rim of the weir. As you will
see from the attached sketch, all pipes are turned down to 1 foot below the normal pool elevation,to reduce
the amount of trash encountered. We ttiltk that those suggestions are good ideas and will reduce
mairucnanco concerns. We understand that these changes mill be adequate to allow for issuance of the
stormwater permit.
You will receive revised calculations and a revised plan sheet in the mail early next week,
Thank-you for your help.
THIS MESSAGE IS INTENDED ONLY FOR THE USE OF THE INDIVIDUAL OR ENTITY TO WHICH IT is ADDRESSED AND MAY CONTAIN
INFORMATION THAT 15 PRIVII_FCFD,CONFIDENTIAL,AND EXEMPT FROM DISCLOSURE UNDERAPPLICARLE LAW.
If the reader of this message Is not the Intended recipient,or the employee or agent responsible for delivering the message to the
Intended recipient,you are hereby notified that any dissamhmtion,distribution,or copying of this communication is strictly
prohibited.If you have received this communication in error,please notify us Immediately by telephone and return the original
message to us at the above address via the U.5.postal servlm `

{�03/�0�5/98 08:91 FAX i919 782 5905 ARCADIS Geraghty Miller 1@002
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03"05/98 08:31,FAX [phone] ARCADIS GOraghty Miller 16 005
W/ J.g095 C 20Omm O.Cn E.W. -� 900mm z 600mm
y MICE DNA,) -MµIIOLE EIWAE a COAER
Ex1ER0 ERICK TO FoRN NCCOT STO. 640.54 TOP€L=6,!EO
211 . 200mm OPENING M 6.0% 1
COLUM05 AT CORNERS �INV Z-=5.S60 CROWN
YR MAX 1 +Umm Oli. J SHOULDER EL-S.700
EL=5.820 ((TYP.) L EuewKME1rr ')-.1 ANTI-SEEP COLLAR
7 2-200mm DAA DIP W/ 55 E I ! , 1.8 M x 1,8 M
SO ELDOW TURN€O OOW'II. q �I 0 BOOmm Clip.
STRAP TO INET
PERMANENT POOL INIV = 5.050
EL.=&090 'ruon QRIAWL TO II(V, IN=L,EO INV. OUT=4.TO CL, I STONE APRI
SEE OCTAL 2/C15
J1 NONE CONSTRUCT 6RICK DROP INLET
7 (n) (NCOOT STG. MOM) NEW 2 M RAS2 OMIT
�;UAV 60 0001FY AS SND'NN CUT GFF TRENCH 500mm DEEP. W/ 3:1 SIDE SLOPES1
1-laemzn7ly WEEP HOLES I M BOTTOM. 2:1 WE SLOPE
NOTE ALL POND SLOPES TO BE '_H:IV, OR FLATTER W, = 4,800 We'R6'61,2M 1 (LENGTH OF BERM)
COVER W/ To,.,m CALV.
iWaOWAFE CLOTH•
VATER MANAGEMENT POND rvtTlw Duo r EE.6+H.50
I iRu
L 0.6m (TiF.)
• I�
14 GA. C-M. DIAPF'RPGM
"CAL CORRUGATION)
(ION I e
-sr0. MAND F o CM CONNECRNG
9 MR THE FILTER AND RIPRAP ME,LOWS THE REDUIREO LINES WELD ANGLE RAND
E PLAN. CGUI'ACT ANY FILL REGUIREO IN 711E 5U0G]E TO
OUNOING UND15111REC0 61ATERAL law AREAS IN THE 506GRA0E - BATD I 150mm TO, BAND
A o ac FILLED BY CTCREIANG RIE I~ 1nCKNCSi IA LUC 1`1 111 I ANGLES
HOT,'
EDDINC MU CONFO W THE SPECIFE➢ CPAOINC WADS YII C
NIPERLV PROTECTED FROM PUNCHING OR TEARING DURING 50nini —J00mm MOE CORRUGATED
wA+AGC Rf REMOmG THE RIRRAP AND NpcRTG ANoTHCR Docc LUG 115mm FRON COIalEGTNG BRIO W/GASKET
ER THE BWAGEO AREA ALL CONNECTMC JOINTS SHOLRD OF DIAPHRAGM.aI UPPER 5n-
S m IF THE 0AITAGE IS CnICTSA£. REPLACE THE emPE:FILTER OF mv25nvR FROM
EOGC O!t LOW'fR W. LOWER OUWXCEPT PALF
OR
RwO LOC.
EXCEPT FOR
EQUIPMENT. 9UT TAKE CARE TO AVpO DAMAGING THE FILTER. Rwe LIIC LOCATIONS.
NOTE STRUCTURE SHALL BE 'DULY BITUMINOUS COATED.LAP BETWEEN
F THE RIFRAP SHOULD EZ 15 TIMES THE ILACWUM STONE OM. TWO W,I.F SECRONS SHALL SE SEAM We ASPHALT O INSDTIATION.
IE OR ROUGH QUARRY STONE IT SPAR.BE TURD,ANGULAR,
AN0 WEIL GRADED. ANTI-SEEP COLLAR FOR
ZERO GRADE WRN NO OV2RFAI-AT THE END, MAKE IRE TOP 3 CORRUGATED METAL PIPE • -
WNSTREN4 END LEVEL MITI THE REUVNG AREA OR MIGHTLT
C73 CES NO SCAT; .
5 PROPMY AUGNEO WITH THE RECLMNG STREAM AND 0.6 4
IUGHOUT 05 UNCRL IF A CURIE IS NSEOEO TO III'S" 1
4E UPPER SECTION OF THE APROK
UCDON, STAHILQE ALL VVYWRBED AREAS WITH VEGETATION. #40200mm O.C. E.W.'
- 01TULaN0U5 '
SFAWH �
RLP
RARRn.
1 E
I
TEMPORARY DIVERSION DITCH
.•ENCUSH ?AR $RE -
- ANTI--SEEP COLLAR FOR
4 REINFORCED CONCRETE PIPE
CT3 C15 NO SCALE

p WATF i _a 5 Michael F. Easley, Governor
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
P NOV 15 2007
o Alan W. Klimek, P.E. Director
DWO. p A 0 Division of Water Quality
SURFACE WATER PROTECTION SECTION
COASTAL STORMWATER PERMIT RENEWAL APPLICATION FORM
PERMIT INFORMATION:
1. Stormwater Management Permit Number: SW7971015
2. Permit Holder's name: Commanding Officer. MCAS Cherry Point
3. Property Owners Name: Commanding Officer, United States Marine Corps
(if different from permit holder) -
4. Signing official's name: George Radford Title: Environmental Affairs Offirer
(person legally responsible for permit)
5. Mailing address: PSC Box 8006 City:_...(;_hPrry Point
6. State: NC Zip Code: 28533 Phone: (252) 466-4599
(Area Code and Number)
7. Project Name: Operations/Maintenance Facility P-827
8. Location of Project: (streetaddress) Building 4571, Roosevelt Blvd MCAS Cherry Point
9. Directions to Project (from nearest major intersection) From New Bern. take Hwy 70 East to
Havelork. At intergertion of Ni4 70 and NC H 101 Y takP H,.ry 101 Ract to
Roosevelt Blvd. Turn North on Roosevelt Blvd to proceed to Main Gate.
10. Specify the type of stormwater treatment (wet pond,infiltration,etc.): Wet Pond
1 1. List any changes(from project that was originally approved,attach additional pages if needed)No Changes _
Applicant's Certification:
I, (print ,W,71er 0 , certify that the information included on this
permit rene p atio the best of my knowledge, correct and complete.
Signature: Date:/,� DCt`
Submit this com lete f m long with an application fee of $420.00, a new signed Operation
and Maintenanc A ment and a copy of the designer's certification to the address listed
below.
North Carolina Division of Water Quality 943 Washington Square Mall Phone[phone] Customer Service 1-877-623-6748
Washington Regional Office Washington,NC 27889 FAX [phone] Internet: vmw.ncwateroualilv.org North Carolina
An Equal OpportunitylABvmative Action Employer-50%Recycled110%Post Consumer Paper ,Naturally

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NOV 15 2007
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UNITED STATES MARINE CORPS
MARINE CORPS AIR STATION
POSTAL SERVICE CENTER BOX 8003
CHERRY POINT,NORTH CAROLINA 28533-0003
IN REPLY REFER TO:
5090/29466
IN
October 12, 2007
Mr. Roger Thorpe
North Carolina Department
of Environment and Natural Resources a+
Division of Water Quality c(- ra_
Water Quality Section - Stormwater
943 Washington Square Mall 72�07
Washington, NC 27889 NOV 15 2007
y ,
Dear Mr. Thorpe, DWQ-WARD
This letter is being sent as a formal notification of MCAS
Cherry Point' s intent to renew the Stormwater Management Permit
SW7971015, for the Stormwater Detention Pond located at the
Operations/Maintenance Facility, MCAS Cherry Point. The documents
enclosed include the Permit Renewal Form, the Operation and
Maintenance Agreement, as well as the application fee of $505 . 00 .
The .Designer' s Certification Form is currently being finalized and
will be provided shortly hereafter. It should be noted that there
are currently no violations that would prohibit renewal of the
permit .
If there are any questions/comments concerning this permit
renewal, please contact Mr. William Potter at (252) 466-5376 .
Thank you for your assistance in this process .
Sincerely,
4
J. C. CURLIN
Supervisory Environmental Engineer
By direction of the
Commanding Officer
Enclosures : 1 . Coastal Stormwater Permit Renewal Application
Form
2 . Wet Detention Basin Operation and Maintenance
Agreement
3 . Application fee of $505,. 00

Permit No# sc✓7�/7/a/S
WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
Maintenance activities shall be performed as follows: NOV 15 2007
1. After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation, erosion,trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days as designed.
2. Repair eroded areas immediately,re-seed as necessary to maintain good vegetative cover,mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system(i.e. catch basins,piping, swales,riprap, etc.)quarterly to maintain
proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is reduced to
75%of the original design depth(see diagram below). Removed sediment shall be disposed of in an
appropriate manner and shall be handled in a manner that will not adversely impact water quality(i.e.
stockpiling near a wet detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
When the permanent pool depth reads feet in the main pond,the sediment shall be removed.
When the permanent pool depth reads feet in the forebay,the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanks)
0 Permanent Pool Elevation
Sediment Ren oval EI.___ 75
...... .
Sediment Removal Elevation F�259f'
Bottom Ell 1etiom "ruBottom Elevation
FOREBAY MAIN POND
5.Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface.These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance,the flushing of sediment through
the emergency drain shall be minimized to the maximum extent practical.

7.All components of the wet detention basin system shall be maintained in good working order.
8. Remove all trees and heavy woody vegetation from the basins and dike walls.
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print name: yTOQAna. C. �ui 0-,
Title: Swf6-vtsa)j Env, roiAKen.Ia ( Iiternecr
Address: ,Rlc(q 422-'J , 4(c( i5 6)ad liC61.) �ltPtr{ �arnf ���� 2,8`;3.3 'eCoG-
Phone: (2.52 ) 4&6- ;-
Signature:
Date: �r
Note:The legally responsible party should not be a homeowners association unless more than 50%of the lots have been sold and a
resident of the subdivision has been named the president.
Alicia Bailey Wahl /,
I, , a Notary Public for the State of �:v� �� C �1 vd (i r C-t�,
County of ado hereby certify that -76cq t „c�— C
personally appeared before me this I) day of ( h h a , 'a c c — and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness y hand and official seal,
'0
<,,.,� • Seal
My commission expires i C t

Project Name: OPERATIONS/MAINTENANCE FACILITY
StormwaterPermrtNo.: SW7971015
Certification
1, William N. Gainey as a duly
Registered Professional Engineer in the State of North Carolina,having been authorized to observe
the existing conditions at approximately 10 years after
the construction of the project,
Operations/Maintenance Facility (Project)
for MCAS Cherry Point (Project Owner)
hereby state that to the best of my abilities,due care and diligence was used in the observation of the��tttttt
project t such that the construction was observed to be built within substantial complh p \ WCARO
intent of the approy=Lplans andspecifications. `��OP,•�E88/O.<�,yi���
Signature SEAL
Registration Number_ 027845 — 027895\;
�z�.,F,yGIN�•���
Date
gtMtNtt�P``p
Certification Requirements:
VF.S 1.The drainage area to the system contains approximately the permitted acreage.
YES 2.7he drainage area to the system contains no more than the permitted amount of built-upon area.
YES 3.All the built-upon area associated with the project is graded such that the runoff drains to the
system.
YES 4.All roof drains are located such that the runoff is directed into the system.
YES S.The outlet/bypass structure elevations are per the approved plan.
YES6.The outlet structure is located per the approved plans.
YES7.Trash rack is provided on the outlet/bypass structure.
I
YES8.Al1 slopes are grassed with permanent vegetation.
i
YES9.Vegetated slopes are no steeper than 3:1.
YES 1 OThe inlets are located per the approved plans and do not cause short-circuiting of the system.
i
YES I I.The permitted amounts of surface area and/or volume have been provided.
YES 12.Required drawdown devices are correctly sized per the approved plans.
YES 13.All required design depths are provided.
YES 14.All required parts of the system are provided,such as a vegetated shelf,and a forebay.
YES 15.The required system dimensions are provided per the approved plans.

A >
` l ,�

UNITED STATES MARINE CORPS
MARINE CORPS AIR STATION
POSTAL SERVICE CENTER BOX 8003
CHERRY POINT,NORTH CAROLINA 28533-0003
IN REPLY REFER TO:
5090/29466
LN
January 15, 2008
Mr. Roger Thorpe
North Carolina Department of RECEIVED
and Natural Resources
Division of Water Quality
Water Quality Section - Stormwater JAN 18 2008
943 Washington Square Mall
Washington, North Carolina 27889 DWQ-WARU
Dear Mr. Thorpe: l�G
Enclosed with this formal letter of notice is a completed
Designer' s Certification Form which is required as part of the
Stormwater Permit Renewal Application for the
Operations/Maintenance Facility, Permit SW7971015, MCAS Cherry
Point, NC. The Wet Detention Pond associated with this permit was
found to be in compliance with the approved plans and
specifications, and meets all requirements set forth in the
Certification Agreement . Receipt of this Designer' s Certification
Form, along with the Renewal Application previously forwarded to
the Washington Office, should finalize our Permit Renewal package
for Stormwater Permit SW7971015 .
Please direct any questions or comments to Mr. William Potter
of the Environmental Affairs Department at (252) 466-5376 .
Sincerely,
. CURLIN
Supervisory Environmental Engineer
By direction of the
Commanding Officer
Enclosure : 1 . Designer' s Certification Form

RECEIVED
Project Name: OPERATIONS/MAINTENANCE FACILITY
Stormwater Permit No.: SW7971015 JAN 18 2008
Certification D NY Q"Y Y AR®
1, William N. Gainey as a duly
Registered Professional Engineer in the State of North Carolina,having been authorized to observe
the existing conditions at approximately 10 years after
the construction of the project,
pnera ions/Maintenance Facility (Project)
for MCAS Cherry Point (Project Owner)
hereby state that to the best of my abilities,due care and diligence was used in the observation of the ��ttttt t 11/rrr
project f such that the construction was observed to be built within substantial compliaRb CARD�//�i
intent of the appropolans and specifications. �e•'FESS%p`!2'�i
2.QQ0 tiy•v'c
Signature = SEAL
027895 A
Registration Number 027845 ry.
Date .VNN N
mitt"',
Certification Requirements:
YES 1.7he drainage area to the system contains approximately the permitted acreage.
YES 2.The drainage area to the system contains no more than the permitted amount of built-upon area.
YES 3.All the built-upon area associated with the project is graded such that the runoff drains to the
system.
YES 4.All roof drains are located such that the runoff is directed into the system.
YES S.The outlet/bypass structure elevations are per the approved plan.
i
YES 6.The outlet structure is located per the approved plans.
YES7.Trash rack is provided on the outletlbypass structure.
YES8.All slopes are grassed with permanent vegetation.
i
YES9.Vegetated slopes are no steeper than 3:1.
YES I OThe inlets are located per the approved plans and do not cause short-circuiting of the system.
i
YES 11.The permitted amounts of surface area and/or volume have been provided.
YES 12.Required drawdown devices are correctly sized per the approved plans.
YES 13.All required design depths are provided.
YES 14.All required parts of the system are provided, such as a vegetated shelf, and a forebay.
YES 15.The required system dimensions are provided per the approved plans.

Akko/r)wG)
State of North Carolina
Department of Environment �,F•�
and Natural Resources
Washington Regional Office NCDENR
James B. Hunt, Jr., Governor NprtMQ ..D[eo .M p,
E.m�gxwvrt,wo N.w R...c.
Wayne McDevitt, Secretary
DIVISION OF WATER QUALITY
March 5, 1998
Environmental Affairs Dept. (LN)
Attn: Mr. Doug Nelson
MCAS, PSC Box 8066
Cherry Point, NC 28533
Subject: Permit No. SW7971015
MCAS - Project P-827
Operations/Maintenance
High Density Stormwater Project
Craven County
Dear Mr. Nelson:
The Washington Regional Office received the completed
Stormwater Application for the subject project on March 5, 1998.
Staff review of the plans and specifications has determined that
the project, as proposed, will comply with the Stormwater
Regulations set forth in Title 15A NCAC 2H. 1000. We are forwarding
Permit No. SW7971015 dated March 5, 1998 to MCAS, Cherry Point, NC.
This permit shall be effective from the date of issuance until
March 5 , 2008 and shall be subject to the conditions and
limitations as specified therein. Please pay special attention to
the Operation and Maintenance requirements in this permit. Failure
to establish an adequate system for operation and maintenance of
the stormwater management system will result in future compliance
problems.
If any parts, requirements, or limitations contained in this
permit are unacceptable, you have the right to request an
adjudicatory hearing upon written request within thirty (30) days
following receipt of this permit. This request must be in the form
of a written petition, conforming to Chapter 150B of the North
Carolina General Statutes, and filed with the Office of
Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447.
Unless such demands are made this permit shall be final and
binding.
943 Washington Square Mall, Washington. North Carolina 27889 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer

EAD (LN)
March 5, 1998
Page Two
If you have any questions, or need additional information
concerning this matter, please contact Bill Moore at (919) 946-
6481 , extension 264 .
Sincerely,
i/ wit rJZrz
Roger K. Th rpe
Water Quality Supervisor
Washington Regional Office
cc: Piedmont Olsen Hensley
Craven County Inspections
hington Regional Office
Central Files

State Stormwater Management Systems
Permit No. SW7971015
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143 ,
General Statutes of North Carolina as amended, and other applicable
Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
MCAS, Cherry Point
Craven County
FOR THE
construction, operation and maintenance of stormwater management
systems in compliance with the provisions of 15A NCAC 2H. 1000
(hereafter referred to as the "stormwater rules" ) and the approved
stormwater management plans and specifications and other supporting
data as attached and on file with and approved by the Division of
Water Quality and considered a part of this permit for a wet
detention pond to serve the new operations/maintenance facility
located off Roosevelt Blvd at Cherry Point, NC.
This permit shall be effective from the date of issuance until
March 5, 2008 and shall be subject to the following specified
conditions and limitations :
I. DESIGN STANDARDS
1 . This permit is effective only with respect to the nature and
volume of stormwater described in the application and other
supporting data.
2 . This stormwater system has been approved for the management of
stormwater runoff as described on page 4 of this permit, the
Project Data Sheet.
3 . Approved plans and specifications for this project are
incorporated by reference. and are enforceable parts of the
permit.
3

DIVISION OF WATER QUALITY
PROJECT DATA
Project Name: MCAS, Project P-827
Operations/Maintenance
Permit Number: SW7971015
Location: Craven County
Applicant: MCAS
Mailing Address: EAD (LN)
PSC Box 8066
Cherry Point, NC 28533
Application Date: 10/1/97 ; original
3/5/98; complete
Water Body Receiving Stormwater
Runoff : Slocum Creek
Classification of Water Body: SC-NSW
Total Site Area: 18.48 acres
Total Impervious 16.08 acres
Surfaces Allowed:
Pond/Basin Depth: 4 . 25 feet
Required Surface Area 1 .19 acres
(SA/DA) :
Provided Surface Area: 1 .19 acres
Required Storage Volume: 42 , 290 cf
Provided Storage Volume: 42 , 290 cf
Controlling Orifice: 4 . 0 inch inverted pipe
4

4 . No homeowner/lot owner/developer shall be allowed to fill in,
alter, or pipe any vegetative practices (such as swales) shown
on the approved plans as part of the stormwater management
system without submitting a revision to the permit and
receiving approval from the Division.
5. The following items will require a modification to the permit:
a. Any revision to the approved plans, regardless of size
b. Project name change
C. Transfer of ownership
d. Redesign or addition to the approved amount of built-upon
area
e. Further subdivision of the project area.
In addition, the Director may determine that other revisions
to the project should require a modification to the permit.
6. The Director may notify the permittee when the permitted site
does not meet one or more of the minimum requirements of the
permit. Within the time frame specified in the notice, the
permittee shall submit a written time schedule to the Director
for modifying the site to meet minimum requirements . The
permittee shall provide copies of revised plans and
certification in writing to the Director that the changes have
been made.
II. SCHEDULE OF COMPLIANCE
1 . The permittee will comply with the following schedule for
construction and maintenance of the stormwater management
system.
a. The stormwater management system shall be constructed in
its entirety, vegetated and operational for its intended
use prior to the construction of any built-upon surfaces
except roads .
b. During construction, erosion shall be kept to a minimum
and any eroded areas of the system will be repaired
immediately.
2 . The facilities must be properly maintained and operated at all
times. The approved Operation and Maintenance Plan must be
followed in its entirety and maintenance must occur at the
scheduled intervals.
3 . The permittee shall at all times provide the operation and
maintenance necessary to assure the permitted stormwater
system functions at optimum efficiency including, but not
limited to:
5

a. Semiannual scheduled inspections (every 6 months)
b. Sediment removal
C. Mowing and revegetation of side slopes
d. Immediate repair of eroded areas
e. Maintenance of side slopes in accordance with approved
plans and specifications
f . Debris removal and unclogging of outlet structure,
orifice device and catch basins and piping.
4 . Records of maintenance activities must be kept and made
available upon request to authorized personnel of DWQ. The
records will indicate the date, activity, name of person
performing the work and what actions were taken.
5. This permit shall become voidable unless the facilities are
constructed in accordance with the conditions of this permit,
the approved plans and specifications, and other supporting
data.
6 . Upon completion of construction and prior to operation of this
permitted facility, a certification must be received from an
appropriate designer for the system installed certifying that
the permitted facility has been installed in accordance with
this permit, the approved plans and specifications, and other
supporting documentation. Mail the Certification to the
Washington Regional Office, 943 Washington Square Mall ,
Washington, North Carolina, 27889 , attention Division of Water
Quality.
7 . A copy of the approved plans and specifications shall be
maintained on file by the Permittee for a minimum of five
years from the date of the completion of construction.
III. GENERAL CONDITIONS
1 . This permit is not transferable. In the event there is a
desire for the facilities to change ownership, or there is a
name change of the Permittee, a formal permit request must be
submitted to the Division of Water Quality accompanied by an
application fee, documentation from the parties involved, and
other supporting materials as may be appropriate. The
approval of this request will be considered on its merits and
may or may not be approved.
2 . Failure to abide by the conditions and limitations contained
in this permit may subject the Permittee to enforcement action
by the Division of Water Quality, in accordance with North
Carolina General Statute 143-215.6(a) to 143-215.6(c) .
3 . The issuance of this permit does not preclude the Permittee
from complying with any and all statutes, rules, regulations,
or ordinances which may be imposed by other government
agencies ( local, state, and federal) which have jurisdiction.
6

4 . In the event that the facilities fail to perform
satisfactorily, including the creation of nuisance conditions,
the Permittee shall take immediate corrective action,
including those as may be required by this Division, such as
the construction of additional or replacement stormwater
management systems.
5. The permit may be modified, revoked and reissued or terminated
for cause. The filing of a request for a permit modification,
revocation and reissuance or termination does not stay any
permit condition.
Permit issued this the 5 th day of March, 1998 .
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
GHQ 2h
A. Preston Howa , Jr. , P.E. , Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW7971015
7

MCAS, Operations/Maintenance Facility
located along Roosevelt Blvd.
Craven County
Stormwater Permit No. SW7971015
Designer'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
8

WASH R GCCIVCa
uv OFrl�r
OCT 0 1 1997
Ma
Cherry Point Marine Corps Air Station
Craven County, North Carolina
OPERATIONS / MAINTENANCE FACILITY
Stormwater Management
Narrative & Calculations
September 2, 1997
Prepared by:
Piedmont Olsen Hensley •••..•' N CA •.���
2301 Rexwoods Drive �� ES 4
Raleigh, North Carolina 27607 ,�� N9lt
E AL (OIg1 z
16811 ,
jP
,'"��HnaleNe

�13
I
I CHERRY POINT MCAS OPERATIONS/MAINTENANCE FACILITY
STORMWATER MANAGEMENT NARRATIVE
Site Description
Cherry Point Marine Corps Air Station is located adjacent to Havelock, North Carolina. This
base is in the eastern part of North Carolina and is characterized by low, flat coastal terrain.
Portions of the base are densely developed consisting of buildings and structures of varying ages.
Older structures appear to have been constructed in the 1940's. Other portions of the base have
not been developed and vary in nature from dense hardwoods and pine forests to salt marsh.
This project consists of two sites, located at different portions of the base. The Curtis Road site is
located on the east side of Curtis Road, approximately half way between"A' and"C" Streets.
This is on the southern end of the base,just north and east of the Main Gate. A tanker/refueler
vehicle maintenance building is currently located on the site. The site is level and has a gravel
surface for vehicle drive and storage areas. After discussion with Patrick McClain of the Division
of Land Resources, Land Quality Section, Washington, NC Regional Office, it was determined
that an Erosion and Sedimentation Control plan is not required for this site (the disturbed area is
less than one acre). Therefore, a Stormwater Management Permit is also not required.
The second site is located just east of Roosevelt Boulevard between Slocum Road and Monroe
Drive. The site is east of Building 4344, Regimental Group Headquarters and extends north
towards Building 1710. Currently, this area is undeveloped and is partially wooded (see existing
and proposed tree lines) with a thin growth of pines, hardwoods, and other native species.
Description of Proposed Work
Roosevelt Boulevard Site
The proposed project will construct six buildings on the site, provide areas for maintenance and
storage of tanker/refueler trucks and engineering/maintenance equipment, provide parking for
users of these facilities, and construct a stormwater management pond.
The existing access drive that runs south of Building 4344 will be extended to the east and north
to provide access to the proposed site, which will be fenced and have gated entrances. The
intersection of the existing access drive and Roosevelt Boulevard will be signalized.
Soils
The existing terrain is relatively flat, with moderate slopes on the east side that drain to an existing
drainageway on the south of the site. The native soils consist mostly of medium dense silty and
K.\CIV�39419-OaW_P\RPTSTORMNAR.DOC
it
1

2/3
I
clayey sands. A sandy topsoil overlies these sands. Boring logs indicate perched water at various
elevations throughout the site in addition to a water table that fluctuates seasonally, but is
relatively high.
Storm Drainage Design
The storm drainage system is designed for the 10-year storm. Run-off is calculated using the
Rational Method and the Kirpich equation. Storm drainage piping is sized to flow just full,
without a surcharge in the system, and to maintain public safety. Pipe slopes throughout the
system are relatively flat (<1.0%) in order to keep the ditch on the east side of the site as shallow
as possible. This also keeps the pond from backing up onto the site during larger design storms.
The system calculations are included with this submittal.
Two notable precautions being taken on the proposed site are in the fuel tanker concrete parking
area and with the wash apron areas.
The large concrete parking area for the fuel tanker trucks will be graded so that all runoff is
collected in a trench drain and transported to an oil/water separator. The oil/water separator will
be visually inspected after each rainfall for an oil `sheen' on the water's surface which will be
removed if noted. This will further reduce the amount of pollutants to be filtered by the
stormwater management pond.
When not in use (during rain storms), the wash aprons will drain directly to the storm drainage
system. However, the wash apron drains will be installed with valves that will allow for the
diversion of wash water to flow to the gravity sanitary sewer system. This will also help alleviate
the amount of pollutants to be filtered by the wet detention pond.
Stormwater Management Pond Calculations
Since the project site is located in one of North Carolina's 20 coastal counties and an Erosion and
Sedimentation Control permit is required (disturbed area> 1 acre), a stormwater management
permit must be obtained. A stormwater management pond will be located in the southeast corner
of the site and has been designed to treat the majority of runoff from the proposed impervious
(parking, roads, etc.) as well as non-impervious (grassed areas) surfaces. This pond will help
I reduce the impacts due to increased runoff and pollutants from the proposed impervious surfaces.
Due to site conditions, a small portion of the proposed roadway will not be diverted to the pond.
This area is half of the roadway (roadway is crowned) from the point at which it starts in front of
the Operations Building to 20 meters north of the bend in the road (0.05 Ha; 0.13 Ac total). This
runoff will flow to the southeast grass-lined drainage ditch which will be constructed around the
roadway to maintain existing drainage patterns.
The pond will have a permanent pool with an average, normal pool depth of slightly over four
i
feet. After calculating the percent of proposed impervious area in the drainage area, the
K:\CIV199419-06\W P\RPTISTORMNAR.DOC
1

3/3
permanent pool volume was sized using the DEM chart indicating surface area to drainage area
ratios for various pool depths and percent impervious surfaces. A stage-storage function
describing the geometry of the pond was derived to calculate the permanent pool elevation
(attached). In addition to the permanent pool, a temporary pool is provided to store the first inch
of runoff over the drainage area and detain this volume of water for two to five days. Weep hole
diameters were calculated to provide a four and a half day drawdown time. After the drawdown
time, the water level in the pond will return to the normal (permanent) pool elevation. Design
storm storage is provided above the temporary pool elevation.
Peak flows for pre-development and post-development conditions were estimated using the
rational method. See the attached calculations for time of concentration and intensity-duration-
frequency results.
The post-development runoff hydrograph was computed using small-watershed hydrograph
methodology, developed by H. Rooney Malcom, P.E., Ph.D., of North Carolina State University.
The 6-hour, 10-year and the 6-hour, 100 year design hydrographs represents the pond inflow.
Analysis of the stage-storage-discharge relationship for each of the ponds was performed using
modified storage-indication routing methodology developed by Dr. Malcom. The relationship
between the inflow hydrograph, storage volume and outflow rate was analyzed for a variety of
pond and outlet configurations. The pond is designed to limit the proposed 10 year design storm
outflow to the existing conditions (pre-development) flow. In addition, the pond will pass the 100
year post-development storm without over-topping the dam.
See the attached calculations for the stormwater management pond's routing characteristics.
I
The proposed pond is to be used as a temporary sediment basin for erosion control. Upon site
stabilization, the filter stone will be cleaned and utilized again to prevent clogging of the
drawdown holes. The pond will be cleaned of sediment and then restored to the required shape.
Note: The proposed plans for this project have been produced in metric (SI) units; throughout
the calculations metric values are shown, with english (non-SI) :nits in parentheses. If current
design guides and equations are for english units only, the english units are used for the
calculations.
K:\CIV\39419-06\W-P\RPDSTORMNAR.DOC

Cherry Point Marine Corps Air Station
Craven County, North Carolina
f
OPERATIONS / MAINTENANCE FACILITY
Stormwater Management Pond Calculations
September 2, 1997
I
Prepared by:
Piedmont Olsen Hensley
2301 Rexwoods Drive
Raleigh,North Carolina 27607
i

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20% 1.7 1.3 1.2 1.1 1.0 .9 .8 .7 .6 .5
30% 2.5 2.2 1.9 1.8 1.6 1.5 1.3 1.2 1.0 .9
40% 3.4 3.0 2.6 2.4 2.1 1.9 1.6 1.4 1.1 1.0
50% 4.2 3.7 3.3 3.0 2.7 2.4 2.1 1.8 1.5 1.3
60% 5.0 4.5 3.8 3.5 3.2 2.9 2.6 2.3 2.0 1.6
70% 6.0 5.2 4.5 4.1 3.7 3.1 2.9 2.5 2.1 1.8
80% 6.8 6.0 5.2 4.7 4.2 3.7 3.2 2.7 2.2 2.0
90% 7.5 6.5 5.8 5.3 4.8 4.3 3.8 3.3 2.8 1.3
100% 8.2 7.4 6.8 6.2 5.6 5.0 4.4 3.8 3.2 2.6
90% TSS REMOVAL
NO VEGETATED FILTER REQUIRED
DEPTH 3' 3.5' 4.0' 4.5' 5.0' 5.5' 6.0' 6.5' 7.0' 7.5'
RIAP %
10% 1.3 1.0 .8 .7 .6 .5 .4 .3 .2 .1
20% 2.4 2.0 1.8 1.7 1.5 1.4 1.2 1.0 .9 .6
30% 3.5 3.0 2.7 2.5 2.2 1.9 1.6 1.3 1.1 .8
40% 4.5 4.0 3.5 3.1 2.8 2.5 2.1 1.8 1.4 1.1
50% 5.6 5.0 4.3 3.9 3.5 3.1 2.7 2.3 1.9 1.5
60% 7.0 6.0 5.3 4.8 4.3 3.9 3.4 2.9 2.4 1.9
70% 8.1 7.0 6.0 5.5 5.0 4.5 3.9 3.4 2.9 2.3
80% 9.4 8.0 7.0 6.4 5.7 5.2 4.6 4.0 3.4 2.8
90% 10.7 9.0 7.9 7.2 6.5 5.9 5.2 4.6 3.9 3.3
100% 12. 110.0 1 8.8 8.1 7.3 6.6 5.8 5.1 4.3 3.6
Note: The required surface area calculated from the tables is to be provided at the permanent pool elevation.
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@
— `b IMPcXVIo�S.
= 0.9 106 Acre- FT 4S5UD PT7 2J 2`10 F73 \
IZOO M3
STc STAG-�E - STORr1G�� Funlcno�l G' 9."1'S Tp �.lo.wa.-c� �JCa [�pSJ.t��
/1 AD
...STA- STQ FpwcT1 � S = lln _,�1 �. GNG�NSN VNrTS. .
S W1S93.4 (4.9Z)L4
0
S - 1 � 05 Frs.
SVKF �.A - 0,51 µA 5�1190o Frz
R�� �EITN 1 5712o5 r-r3 = 5419CXD FTz ' 2.8W r�
N s s tz�KPL-� (Suouvo cc� clsr �01 a%� TO ADD �r,l F�cga�{ AR�Ps

5 �2Z
Cherry Point MCAS Piedmont Olsen Hensley
Operations Facility SWM Pond Project No. 39596.0000
I COMPUTATION OF STAGE-STORAGE FUNCTION
Storm Water Management Pond
__..................................._.. .....................i..........._._........._.i_.._..._..........._.._...._._ . ....._...................- _ . .
. ---........_._....._ .....................................__........
S i....._._..Z . j r
I
Contour I Contour Contour I Contour I Iner. ; Accum. Stage i In S In Z i Z est I Zest
I Area Area I volume : Volume ! j
M MZ FT Fr Fe FT' I 1�1' j � FT %
....................................................... .........._..............._............................;..__.._..__....._._.._..................................................__......... __....._.._... ...__.. -
3.25 j 227 10.66 j 2443 0.00 `
.............. . ... ...........;.......................
.....;--......._..............._...... .. _.......a.................__...__':........ .:._._.._.._.._....._.._._........_.............._._._............_.
.i.30 ! 1255 11.48 j 13509 6,542 i 6,542 j 0.82 8.7860 -0.1982 ! 0.88 107%
...................:. ................ .. ...._._................._...._.._..............,............._....._..........--`-..._......_,........................................_._..........
j 3.75 j 1912 12.30 20581 ! 13,980 20,522 1.64 i 9.9293 0.4949 ! 1.67 I 102%
........:........._................. .._.......................;........................_.._._..._....._..............
4.00 i 2642
425 334 13.12 ,!. 40,625 , 2.4.6...........;....1...0......61-21..;....0.......9.._0...0...4.......;:........2......4....5._........;........9....9_.%
....... . 13.......... ....................j _.......................j .............
36005 26,428 67,053 .............................................
............
4.50 I 4036 14.76 43443 ` 32 582 99 635 1 4.10 '. 11.5093 1.4112 4.05 99%
........:..................... ........ ._ ....... .........................
4 75 47415. 51495 38,934 1.3....8...,..5...6....9_... ........4.......9...2...........;....1...1..._8..-391 ,.._.1.....5...9....3...6......._1
....... I ........................ ................5_... ..........:...._._..................,.....
5.00 5622 1640 ........4.......8...8..........
99%
j 60515 j 45,935 j 184,504 { 5.74 i 12.1254 j 1.7477 1 5.73 I 100%
5.25 i 6302 17.22 ! 67834 j 52,636 1237,140 ! 6.56 ! 12.3764 1.8812 1 6.60 101%
...........:............................:.._.................__.;...................................................._..;........----....:.._..._.....__........;..._.....................-:........._............_.
5.50 i 7270 18.04 i 78254 i 59,911 ! 297,051 7.38 12.6017 ! 1.9990 j 7.49 102%
o ......,..__.............._....,_.............._........... .
5.75 7980 18:86 85896 1_.-67,318 1 364,369 j 8:20 1 12.8059 2.1044 i 8.41 I 102/0
............_... :............. . .....;.
6,00 ! 9115 19 68 i 98113 175 462 439 831 9.02 1 12 9941 .....2......1....9...9...7....... 9.....3..4 ! 104%
.................. ... ........ ........ .. ..........1... ..........
6:25......... 20.51.......I.............................._40,236.... -480,068..i......_9:84...........13:0817 _ 2.2867.... ..._9:82........1......100%....
Regression Results: Intercept 9.0203 Ks= 8269.2
R sq= 0.9995 b= 1.78
� b
S = ks -z
1.7b
S = 82(v"1,2 � � FIND STarat F2oM I" fzUNoFF SToIzM
�7H�S IS START WSel- Fo(L IO,IR `s4 IOO`IF. A,-JAL_4SIS)
i ♦ (3.ZS.n�
PEJZM Pcxx- Cl.- = 1•$� "v 1 7,"7S F-f - 10 lstD FT - 5 ;Og
ig = t32Co9.2 �S ov�1.18 F13 I
"
�{2,290 Frs s
R�.Q D S"roRPL-,6 FRoM I 2�NoFF = �I�OOnn
ly1 29s Frj 1:76
{ yZ,2`1D PT3 / I`11 1535
1� 115-55
I0.t9V' Fr + S.0 FT = IL9 50 FT
I = sj, oSNt �
I
�� Ks&b.xis 8/21/97

BY �717�� DATE—e'Z .17 FiedmoldOlsenHensiey SHEETNO.�OF ZZ
HKD.BY___05L DATE 9/1 17 JOB NO. 3959CP
SUBJECT
t
r
I
k
-
-f--- •I r-�M. �����o�y PaN�� SC.o�Mu� ` Cow-cza. '!�.�,+� _M�vJU!a�., .���
SuC?G c.c�a v� 6�4sr�1-.(,FTC J
i Li p aF 11�0 v Fit H0.._ cr
0 V5AA i € 'f OP�OG- a Qj2(�q �STb.G � r �S4AC�E sroRrat-�G Frrr wr�a�li
sop F,
��.:.�._.��. ! II ____ 4 ._ r - SURF -rO.Rik..-._...7...-.-►�,�YJ-�g2(99 z.�.?ST�?� � 1� _. __ r
k _ _
I
Jl.
� t

F ezN DATE ����yyI/. �k-1 PliedmontOlsenHensley SHEET NO. I OF 2Z
KD.BY FW� DATE.ILY3'] JOB NO.
Gl-tFt`I PD�hIT // // SUBJECT �WM PO AID Goal-G�S
II i
k
2f Sloti 1.5 � � I IO'GI1 I. IhJ�I J r
� ,OSc •2`��20.27�n� �3. N • � � i
� f
27 6MZ c O,ZO %,,A
z z
.._ _......i._..__.._. __ S�9•S>'J cM2 � -0 ZO.2? � z0,27 � 11 '�IO(�'.. (O�.(s I GM. .
__4
sQ
t CO.01082 FT (D 'r�� 28 I �
i
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I , i e I
i
-;- _I

IY V�"' DATE PlednOlsenHensley SHEET NO. v OF ZZ
Q -KD.BY FL:r2c� DATE Z�I c JOB NO. 3559(D_�
G SUBJECT S `�\Y I N` ( O N D
IPA- HA
C
POS'( -7E\IEIio�MENT -T� 4,72- N4 IMPcRJ1GUS
NA '_.GRASS L-A-- 0_..(0. 157) a-. LAwr.l Sc 131
�, swnw AWJ 2-9%.
"t. C > 0.70
P(zc TYcJ ELa�Mrca�lT- t4� .', /lAMiL J IP VS . Ae;Eq j '__C = Q•zo.
I =Io
11 ..... �e 1 S1�lLl.WhV INLLTT
.._.. USE ! I O A.,i to _"p G'IE.TS INTO "r(r�j.IGN`t n ITGFF C�jsm
i
?C ID.SA�� J.
_. TthkGN F(LOM Ntp-5T. �EMCTC" PPcRT op. V.A. 1 T[tAJ,eA- 2olw- 1I.{.
�MOVE(> N\o}-r . .(z2MOTE spoT P7 9� t L a 4 i N PosT p - AL-So cS ITS ire
��STEM I JSc TIME E.D
_.. :Z,u0 2zz.`i MA, rN'p __... SEE SQF TABI.'E FM GHl.Ry jlolt4T

I .
i
RAINFALL INTENSITY CURVES - METRIC UNITS
Location: CHERRY POINT,NC By: BDW
Date: 3/3/97
I
I
Intensity-Duration-Frequency Table:
IDF Data from Hydro Program: LAT 34 Deg 56 Min LONG 76 Deg 54 Min
Duration 2-yr 5-yr 10-yr 25-yr 50-yr 100-yr
min in in in in in in
5 6.492 7.416 8.035 8.883 9.513 10.118
10 5.257 6.121 6.709 7.528 8.145 8.742
15 4.399 5.221 5.788 6.586 7.193 7.786
30 3.132 3.800 4.269 4.939 5.456 5.966
60 2.027 2.499 2.836 3.321 3.700 4.077
i
IDF Equations: I=25.4*g/(h+t) for 5<t<60 min
Return Yr g h R2
2 163 21 0.9983
` 5 209 24 0.9986
10 243 26 0.9988
25 294 29 0.9991
50 336 31 0.9993
100 379 33 0.9995
I
f Calculated Values:
Duration 2-yr 5-yr 10-yr 25-yr 50-yr 100-yr
min mm mm mm mm mm mm
I 5 158.2 181.8 197.7 219.7 236.2 252.2
10 132.9 155.2 170.4 191.6 207.5 222.9
15 114.5 135.4 149.8 169.8 185.0 199.8
30 81.0 97.9 109.8 126.6 139.6 152.3
60 51.1 63.1 71.6 84.0 93.6 103.3
I
Calculated Value,Percentage of Input Data:
Duration 2-yr 5-yr 10-yr 25-yr 50-yr 100-yr
min in in in in in in
5 96% 97% 97% 97% 98% 98%
10 100% 100% 100% 100% 100% 100%
15 103% 102% 102% 102% 101% 101%
30 102% 101% 101% 101% 101% 101%
60 99% 99% 99% 100% 100% 100%
IDF.XLS

Y GATE qq3�'�11..8��97 Fi OlsenHensley SHEET NO. I OF 22
'(KO.By MCI DATES 7 JOB NO. 3�7 S 7&.
SUBJECT S W AA PoN�
'PeAlV-S CGo rdT,/ '
(o 170.4.ti /r+e�( -7,10 NA)
Qio = 0.7 o I MS3� _
i ..
I0...��Z 6�I0 �.. (O,coz7S�(,O,�O�I"70.4'i..M/HR�7•�S HA�
1 l = Z•ys' Mj�S
I
� I Do `I� P2E - f� � G?Ioo - �,o.�27s`�o .2oX22z,`I rr/HR1(7.9sµn�
o .917 M3/s
32. 38 cFS�
(o.ovZ�s�Co-70�(z�z.�r„� +�x1.�I8ka�
i

BY DATE IC 417 PledmontOlsenHensley SHEETNO. I I OF ZZ
'iKD.BY DATES 4 { SV.1M PON� JOB NO.
G 'P. SUBJECT
l9 u Iz �a�NF4i-1, ��JoFF Lo `�(L `, I oo.`lR J
w>=A-t'AtEUL gvaer*J -�ELws, CA, Pit�0- 40
�N lfl = 7 1N. �1Op �CZ�
l _ .
T�(,f ArIPv.�SIS
DIS CR�24-_ �`.L�R�ocesrl �FRonn G�r� RFso�l � �. :
TfS
I F-r
11�7-7 '7
rT
ztss . *240
I s°4 s.co
a3 63 _ s,,.�e�c
AX—
i . . ��' D G210 = /25 `�S Pio 1. ZS �t ��/�o= 'd.51
(0.36 nc'>
' eAY-o _ Tw�� = �(�� t�. cn r t �,Q = I s ,4Z + I,Z5 u , tn't_
1 .
Tir(��' 'IyJ. Ivy � C5.13]

iz Izz
i
Cherry Point MCAS Piedmont Olsen Hensley
Operations Puality SWM Pond POH No.395%.0000
1
SINGLE RESERVOIR ROUTING SPREADSHEET
Chnimaw Routing
Cherry Point MCAS OPERATIONS/6LAMENANCE FACILITY
Stormwater Management Pond
I
Inflow H dro na hData: Sto e/Dis,ha ,Data: Wal ed/Storm Data:
- 87 cfs Riser/Barrel: Return 10
i - 33 mm Nr-I 1 =>No.ofba.is 747
1 3 min NetA- 1165.0 s in => (Slabto DI Structure) h- 26
dT(e Ic)- 3 min NetP-I 120.0 in Pn24- 3.0 in
Sta e/Storu eDato: Cw 3.30 fo u e DA= 18.5 ac
( rb
Ks Z b Zr-' 18.40 It -> CLEAR H- 10 R
- 8269.2 Db= M in L- 1085 R
- 1.78 co 0.60 Ca- 070
- 10.66 Z 15.75 CN- 87
L - .._.40_
Initial Water Level: Ke-, Q1 S- 1.49 in
Zi- 165E n=I 0.024 3.57 in
I fe= O.086
Cam uted Results: Ko- 18.22 Tc- 10.0 min
PVC nin : I= 6.8 irvhr
Normal Surf Area- 1.67 ec Nc= 1 Q = 87 cfs
Mae SalfAres= 1.78 ac Dc-i 800 m T = 32.9 min
Peak Stage= 19.09 R Ce-I 0.60 WEL.= 16.67 Runoff- 5.5 ac-R
Peak Out6ow- 23.10 cis Inv 16.5E R
Eme en Weir ql: V-notch Weir:
4 Lwl- 20. R Zv= 0.00 It => SUBMERGED
Zwl 19.30 R An e= 0
Pre-Dev.Peak= 25 cfs Cwl= 0.60
{ Chrilmmw Ron tin : Disrha e:
` Time E26
dS P2.04B+05
a Stage Outflow PVCPi Riser Riser V-notch Riser/ Barrel Bartel Riser/ Weir kl
min cf R cfs Opening Orifice Weir Weir Opening Inlet Outlet Barrel cis CONTROL
00,00E+0005 16.56 0 0.0 0.0 0.0 0.0 0.0 3.9 0.0 0.0 0.0 BARREL;outlet contra
30.00E+0005 16.56 0 0.0 0.0 0.0 0.0 0.0 3.9 -6.0 -6.0 0.0 BARREL;outlet wntrol
f63.21E+02 +05 16.57 0 0.0 0.0 0.0 0.0 0.0 3.9 .5.9 .5.9 0.0 BARREL;outlet control
i 91,26E+03 +05 16.59 0 0.0 0.0 0.0 0.0 0.0 4.1 .5.3 .5.3 0.0 BARREL;outlet wntro
122.73E+03 +05 16.63 0 0.1 0.0 0.0 0.0 0.1 4A -3.5 -3.5 0.0 BARREL;outlet control
154.63E+03 +05 16.71 0 0.2 0.0 0.0 0.0 0.2 5.0 3.7 0.2 0.0 PVC Pi nin186,75E+03 +01 16,12 0 0,5 0.0 0.0 0.0 0.5 5.9 7A 0.50.0 PVC Pi nin218.95E+03 +05 16.97 1 0.9 0.0 0.0 0.0 0.9 7.2 9.9 0.9 0.0 PVC Pi ni24 73 1.10E+04 +OS 1 17.14 2 1 6 0.01 0.0 0.01 1.6 8.8 12.5 L6 0.0 IPVC Ptie,Opening
27 81 1.28E+04 2.43E+05 17.34 2 2.3 0.0 0.0 0.01 2.3 10.8 15.0 2.3 0.0 PVC Pi Opening
30 86 1.41E+04 2.57E+05 17.56 3 2.7 0.0 0.0 0.0 2.7 13.0 17.2 2.7 " PVC Pi ni
33 87 1.49E+04 2.72E+05 17.78 3 3.2 0.0 0.0 0.0 3.2 15.3 19.2 3.2 0.0 PVC Pi nin
36 85 1.51E+04 2.87E+05 18.00 4 3.5 0.0 0.0 0.0 3.5 16.9 21.0 3.5 0.0 PVC Pi nin
39 80 1.47E+04 3,02E+05 18.21 4 3.9 0.0 0.0 0.0 3.9 18.2 22.6 3.9 0.0 PVC Pi nin
42 72 1.37E+04 3.16E+05 18.40 4 4.1 1.0 0.0 0.0 4.1 19.4 24.0 4.1 0.0 RISER as weir
45 64 1.22E+04 328E+05 18.57 7 4.3 15.9 2.3 0.0 6,6 20.4 25.1 6.6 0.0 RISER as weir
i 48 57 1.03E+04 3,38E+05 18.71 10 4.5 21.5 5.6 0.0 10.1 21A 26.0 10.1 0.0 RISER as weir
51 50 8.39E+03 3.47E+05 18.82 14 4.7 25.2 8.9 0.0 13.6 21.7 26.7 13.6 0.0 RISER weir
54 45 6.63E+03 3.53E+05 18.90 17 4.8 27.7 11.8 0.0 16.6 22.2 27.2 16.6 0.0 RISER as weir
57 40 5.07E+03 3.58E+05 18.97 19 4.8 29.4 14.2 0.0 19A 22.5 27.E 19.1 0.0 RISER as weir
60 35 3.72E+03 3.62E+05 19.02 21 4.9 30.7 16.1 0.0 21.0 22.8 27.9 21.0 0.0 RISER as weir
63 31 2,58E+03 3,65E+05 19.05 22 4.9 31.5 17.4 0.0 22.3 22.9 28.1 22.3 0.0 RISERssweir
66 28 1.62E+03 3.66E+05 19.07 23 5.0 32.0 18.2 0.0 23.2 23.0 28.2 23.0 0.0 BARREL;inlet wntrol
69 25 8.67E+02 3.67E+05 19.08 23 5.0 32.2 18.7 0.0 23.7 23.1 28.3 23A 0.0 BARREL;inlet control
72 22 2.9fi6+02 3.68E+05 19.09 23 5.0 32.3 18.9 0.0 23.8 23.1 28.3 23.1 0.0 BARREL;inlet control
I 75 19 -2.05E+02 3.67E+05 19.09 23 5.0 32.3 18.8 0.0 23.7 23A 28.3 23.1 0.0 BARREL;inlet control
f 78 17 .6.45E+02 3.67E+05 19.08 23 5.0 32.1 18.4 0.0 23.4 23.0 28.3 23.0 0.0 BARREL;inlet wntrol
61 IS -1.03E+03 3.66E+05 19.0E 23 4.9 31.8 17.9 0.0 22.8 2 28.2 22.8 0.0 RISER as weir
84 14 -1.34E+03 3.64E+05 19.05 22 4.9 31.3 17.2 0.0 22.1 22.9 28.1 22.1 0.0 RISER as weir
87 12 -L52E+03 3,63E+05 19.03 21 4.9 30.9 16.4 0.0 21.3 22.8 28.0 21.3 0.0 RISER as weir
50 11 •1.65E+03 3.61E+OS 19.01 20 4.9 30.3 15.E 0.0 20.4 22.7 27.8 20.4 0.0 RISER a9 weir
93 10 -1.74E+03 3.59E+05 18.98 20 4.9 29.8 14.7 0.0 19.EE22.O27.0
27.7 19.E 0.0 RISER as weir
96 8 -1.80E+03 3.58E+05 18.96 19 4.8 29.2 13.8 0.0 18.727.6 18.7 0.0 RISER as weir
99 8 -1.83E+03 3.56E+05 18.94 18 4.8 28.5 13.0 0.0 17.827.4 17.8 0.0 RISER as weir
102 7 -1.84E+03 3.54E+05 18.91 17 4.8 27.9 12.1 0.0 16.9 27.3 16.9 0.0 RISER as weir
105 6 -1.83E+03 3.52E+05 18.89 16 4.7 27.2 11.3 0.0 16.027.1 16.0 0.0 RISER as wen
108 5 -1.81E+03 3.50E+OS 18.86 15 4.7 26.5 10.4 0.0 15.2 27.0 15.2 0.0 RISER as weir
111 5 -1.78E+03 3.49E+OS 18.84 14 4.7 25.9 9.7 0.0 74.3 26.8 I4.3 0.0 RISER as weir
114 4 4.74E+03 3.47E+05 18.82 14 4.7 25.2 8.9 0.0 13.6 26.7 13.6MPJSER
weir117 4 -1.69E+03 3.45E+05 18.80 13 4.6 24.5 8.2 0.0 12.8 26.6 12.8weir120 3 -1.64E+03 3.43E+05 18.77 12 4.6 23.8 7.5 0.0 12.1 26.4 12.1 weir123 3 -1.59E+033,42E+05 18.75 11 4.6 23.1 6.9 0.0 11.5 26.3 11.5 weir126 3 -1.54E+03 3.40E+OS 18.73 11 4.6 22.4 6.3 0.0 10.9 26.2 10.9 weir

13/2Z
Chevy Paint WAS Piedmont Olsen Hensley
OPemdons FecJ ty SW Pond POH No.39596.(W)
SINGLE RESERVOIR ROUTING SPREADSHEET
Cholnsaw Roofln
r Cherry Point MCAS OPERATIONSWAINTENANCE FACILITY
1 Stornswafer Management Pond
i
129 2 -1.49E+03 3.39E+05 1 18.71 10 4.5 21.8 5.8 0.0 10.3 21.2 26.0 10.3 0.0 RISER as weir
132 2 -1.44E+03 3.37E+05 18.69 10 4.5 21.1 5.2 0.0 9.7 21A 25.9 9.7 0.0 RISER as weir
135 2 -1.38E+03 3.36E+05 18.67 9 4.5 20.4 4.7 0.0 9.2 21.0 25.8 9.2 0.0 RISER as weir
338 2 -1.33E+03 3.35E+05 18.66 9 4.5 19.7 4.3 0.0 8.7 20.9 25.7 8.7 0.0 RISER as weir
141 1 -1.28E+03 3.33E+05 18.64 8 4.4 19.1 3.9 0.0 8.3 20.8 25.6 8.3 0.0 RISER as weir
144 1 -1.24E+03 3.32E+05 18.62 8 4.4 18.4 3.5 0.0 7.9 20.7 25.5 7.9 0.0 RISER m weir
447 1 -1.19E+03 3.31E+05 18.61 7 4.4 17.7 3.1 0.0 7.5 20.6 25.4 7.5 0.0 RISER as weir
150 1 -1.15E+03 3.30E+05 18.59 7 4.4 17.0 2.8 0.0 7.1 20.5 25.2 7.1 0.0 RISER as weir
153 1 -1.10E+03 3.29E+05 18.58 7 4.4 16.4 2.4 0.0 6.8 20.4 25.2 6.8 0.0 RISER as weir
156 I -L06E+03 3.28E+05 18.56 6 4.3 15.7 2.2 0.0 6.5 20.3 25A 6.5 0.0 RISER as weir
159 1 -1.02E+03 3.27E+05 18.55 6 4.3 15.0 1.9 0.0 6.2 20.3 25.0 6.2 0.0 RISER as weir
162 1 -9.89E+02 3.26E+05 18.53 6 4.3 14.3 1,61 0.0 5.9t2244.9 5.9 0,0 RISER as weir
165 1 -9.55E+02 3.25E+OS 18.52 6 4.3 13.6 IA 0.0 5.74.8 5.7 0.0 RISER as weir
168 0 -9.23E+02 3.24E+05 18.51 5 4.3 12.9 1.2 0.0 5.54.7 5.5 0.0 RISER as weir
171 0 -8.93E+02 3.23E+05 18.50 5 4.2 12.1 1.0 0'0 5.24.6 5.2 0.0 RISER m weir
174 0 -8.65E+02 3.22E+05 18.49 5 4.2 11.4 0.8 0.0 5.124.5 5.1 0.0 RISER as weir
177 0 -8.40E+02 3.21E+05 18.47 5 4.2 10.6 0.7 0.0 4.924.5 4.9 0.0 RISER as weir
I80 0 -8.16E+02 3.20E+05 18.46 5 4.2 9.7 0.5 0.0 4.724.4 4.7 0.0 RISER as weir
183 0 -7.94E+02 3.20E+05 18.45 5 4.2 8.8 0.4 0.0 4A24.3 4.6 0.0 RISER as weir
186 0 -7.75E+02 3.19E+OS 18.44 4 4.2 7.9 0.3 0.0 4.424.2 4.4 0.0 RISER as weir
189 0 -7.57E+02 3.18E+05 18.43 4 4.2 6.8 0.2 0'0 4.324.2 4.3 CO RISER as weir
(I 192 0 -7.42E+02 3.17E+05 18.42 4 4.1 5.6 0.1 00 4.2 19.5 24.1 1 4.2 0.0 RISER as weir
195 0 -7.30E+02 3.17E+05 18.41 4 4.1 4.0 0.0 0.01 4.2 19.5 24.0 4.2 0.0 RISER"weir
198 0 -7.20E+02 3.16E+05 18.40 4 4.1 0.8 0.0 0.0 4A 19.4 24.0 4.1 0.0 RISER as weir
201 0 -7.15E+02 3,15E+01 18.39 4 4A 0,0 0,0 0,0 4.1 19.3 23.9 4.1 0.0 PVC Pi nin
204 0 -7.15E+02 3.14E+05 18.38 4 4.1 0.0 0.0 0.0 4.1 19.3 23.8 4.1 0.0 PVC Pi Opening
207 0 -7.15E+02 3.14E+05 18.37 4 4.1 0.0 0.0 0.0 4.1 19.2 23.8 4.1 1 0.0 PVC Pipe Opening
210 0 -7.15E+02 3.13E+05 18.36 4 4.1 0.0 0.0 0.0 4.1 19.2 23.7 4.1 0.0 PVC Pi nin
213 0 -7.15E+02 3.12E+OS 18.35 4 4.1 0.0 0.0 0.0 4.1 19.1 23.6 4.1 0.0 PVC Pi nin
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Cherry Point MCAS Piedmont Olsen Heasley
Operations Facility 3WM Pond POH No.39596.0000
SINGLE RESERVOIR ROIITWG SPREADSHEET
Chainsaw Routing
Cherry Point MCAS OPERATIONS/MAINTENANCE FACILFFY
Stormwater Management Pond
i
In6owH dro n hDeta: e/Dlache eDale: Watenhed/Sbrm Data:
114 cfsEE
Return_ 100 Yr
T - 39 min I ->No.ofbancls
t dT= 3 min65.0 in -> Slabto Dl Structure) h= 33
di tale 4 min 200 in Pn24- 7.0 in
Sta e/Store eDeta: .30 Check foru n e DA- 18.5 so
S-Ks Z b 8.40 R => CLEAR H= /0 R
Ks- 8169.1 24 in L- 1085 R
b- 7.78 0.60 Ca= 0.70
Zo- /0. 5.75 - 87
L 411._
Initial Water Level: Ke-i 0.2 S- L49 in
Zi= IQ56 n=1 Q024 Q'- 5.48 in
to- 0,086
Cons is dResults: Ko- 18.22 Te- 10.0 min
PVC nin : I= 8.8 indu
Normal Surf Area- 1.67 no Nc-1 1 114 cfs
Max Surf Ares- 1.92 so Dc=1 8.00 in T - 38.7 min
Peek Stage- 19.93 R Ce- 0.60 WEL.= 16.83 Runoff- 8.4 tic-R
Peak Outflow- 33.35 cfs Inv= 16.5E R
Eme an Weirel: V-notch Weir:
Lwl- 10 R Zv- a00 R -> SUBMERGED
C Zwl= 19.30 R Angle- 0
Cwl=i 0.60 Cd- 0
Chainsaw Routin : Dischn e:
Time Innow dS Stone Stage Outflow PVC Pipe Riser Riser V-notch Riser/ Barrel Barrel Riser/ Weirgl
.in cfs of of R cfs Opening Orifice Weir Weir Openinji Inlet Outlet Barrel cfs COMROL
0 0 0.00E+00 1.95E+05 16.56 0 0.0 0.0 0.0 0.0 0.0 3.9 0.0 0.0 00 BARREL;outlet control
3 2 0.00E+00 1.95E+05 16.56 0 0.0 0.0 0.0 0.0 0.0 3.9 .9.5 45 0.0 BARREL;outlet control
6 7 3.04E+02 1.95E+05 16.57 0 0.0 0.0 0.0 0.0 0.0 3.9 -94 -9.4 0.0 BARREL;outlet control
9 15 1.20E+03 1.96E+05 16.59 0 0.0 0.0 0.0 0.0 O.0 4.1 -9.0 -9.0 0.0 BARREL;outlet control
12 25 2.63E+03 1,99E+05 16.63 0 0.1 0.0 0.0 0.0 0.1 4.4 .8.1 .8.1 0.0 BARREL;outlet control
IS 37 4.51E+03 2.03E+05 16.71 0 0.2 0.0 0.0 0.0 0.2 5.0 .6.4 -6A 0.0 BARREL,outlet control
r 18 51 6.73E+03 2.10E+05 16.82 0 0.5 0.0 0.0 0.0 0.5 5.9 -2.1 -2.1 0.0 BARREL;outlet control
21 65 9.17E+03 2.19E+05 16.97 1 0.9 0.0 0.0 0.0 0.9 7.2 6.7 0.9 0.0 PVC Pi Opening
24 78 1.15E+04 2.31E+05 17.15 2 1.6 O.0 0.0 0.0 1.6 8.9 10.3 1.6 0.0 PVC PiOpening
27 90 1.38E+04 2.45E+05 17.37 2 2.3 0.0 0.0 0.0 2.3 I1.0 13.3 23 0.0 PVC Pi Opening
30 101 1.59E+04 2.60E+05 17.61 3 2.8 0.0 0.0 0.0 2.8 13.5 16.0 2.8 0.0 PVC Pi nin
33 108 1.76E+04 2.78E+05 17.87 3 3.3 0.0 0.0 0.0 3.3 16.0 18.5 3.3 0.0 PVC Pi Opening-___
36 113 1.89E+04 2.97E+05 18.14 4 3.7 0.0 0.0 0.0 3.7 17.8 20.8 3.7 0.0 PVC Pi Opening
39 114 1.96E+04 3.17E+05 18.41 4 4.1 4.1 0.0 0.0 4.2 19.5 229 4.2 0.0 RISER as weir
42 112 1.98E+04 3.36E+05 18.68 9 4.5 20.6 4.9 0.0 9A 21.0 24.8 9.4 0.0 RISER as weir
45 107 1.85E+04 3.55E+01 11,92 17 4.8 28.2 12.5 0.0 17.3 22.3 26.4 17.3 0.0 RISERasweir
48 98 1.61E+04 3,71E+05 19.13 23 5.0 33.3 20.7 0.0 25.7 23.3 27.6 23.3 0.0 BARREL;inlet control
51 89 1.35E+04 3.84E+05 19.30 24 5.2 37.1 28.4 0.0 336 24.1 28.7 24.1 0.0 BARREL;inlet control
54 81 1.17E+04 3.96E+05 19.45 26 5.4 39.9 35.6 0.0 41.0 24.8 295 24.8 0.7 BARREL;inletcontrol
57 73 9.91E+03 4.06E+05 19.57 27 5.5 42.2 420 0.0 47.5 25A 30.2 254 1.7 BARREL;inlet control
60 66 8.23E+03 4.14E+05 19.68 29 5.6 44.0 4Z5 0.0 49.E 25.8 30.7 25.8 2.8 BARREL,inlet control
63 60 6.71E+03 4.21E+05 19.76 30 5.7 45.4 52.2 0.0 51.1 26.2 31.2 26.2 3.7 BARREL;inlet control
66 54 5.33E+03 4.26E+05 19.82 31 5.7 46.4 55.9 0.0 52.2 26.5 31.5 26.5 4.5 BARREL;inlet control
69 49 4.11E+03 4.30E+05 19.87 32 5.8 47.2 58.9 0.0 53.0 26.7 31.8 26.7 5.2 BARREL;inlet control
72 44 3.02E+03 4.33E+05 19.91 33 5.8 47.8 61.1 0.0 53.7 26.8 32.0 26.8 5.7 BARREL;inlet control
75 40 2.06E+03 4.36E+05 19.93 33 5.9 48.2 62.E 0.0 34.1 26.9 32A 26.9 6.0 BARREL;inlet control
78 36 1.22E+03 4.37E+05 19.95 33 5.9 48.4 63.5 0.0 54.3 27.0 32.2 27.0 6.2 BARREL;inlet control
81 32 4.86E+02 437E+05 19.95 33 5.9 48.5 63.8 0.0 54.4 27.0 32.2 27.0 6.3 BARREL;inlet control
84 29 -1.54E+02 4.37E+05 19.95 33 5.9 48.5 63.7 0.0 54.4 27.0 32.2 27.0 6.3 BARREL;inlet control
87 27 -7.09E+02 4.36E+05 19.94 33 5.9 48.4 63.2 0.0 54.2 27.0 32.1 27.0 6.2 BARREL;inlet control
li 90 24 -1.19E+03 4,356+05 19.93 33 5.8 48.2 62.3 0.0 54.0 26.9 32.1 26.9 6.0 BARREL;inlet control
93 22 -1.60E+03 4.34E+05 19.91 33 5.8 47.9 61.2 0.0 53.7 26.8 32.0 26.8 5.7 BARREL;inlet convol
96 20 -1.95E+03 4.32E+05 19.89 32 5.8 47.5 59.8 0.0 53.3 26.7 31.8 26.7 5.4 BARREL;inlet control
99 18 -2.25E+03 4.29E+05 19.86 32 5.8 47.0 58.1 0.0 52.8 26.6 31.7 26.6 5.0 BARREL,inlet control
102 16 -2.50E+03 4.27E+05 19.83 31 5.7 46.6 56.3 0.0 52.3 26.5 31.5 26.5 4.6 BARREL;inlet control
105 14 -2.71E+03 4.24E+05 19.80 31 5.7 46.0 54.4 0.0 513 26.4 31.4 26.4 4.2 BARREL;inlet control
108 13 -2.89E+03 4.21E+05 19.76 30 1 5.7 45.411 52A 0.0 51.1 26.2 31.2 26.2 3.8 BARREL;inlet control
111 12 -3.03E+03 4.18E+05 19.72 29 5.6 44.EA50.3 0.0 50.5 26.0 31.0 26.0 3.3 BARREL;inlet control
114 ll -3.15E+03 4.15E+05 19.69 29 5.6 44.2 0B 49.8 25.9 30.8 25.9 2.9 BARREL;inlet control
10 -3.25E+03 4.12E+05 19.65 28 5.6 43.5 0.0 49.0 25.7 30.6 25.7 2.4 BARREL;inlet control
9 -3.32E+03 4,096+05 I9.60 28 5.5 42.8 0.0 48.3 25.5 303 25.5 2.0 BARREL;inlet control
8 -3.38E+03 4.05E+05 19.56 27 5.5 42.0 0.0 46.9 25.3 30.1 25.3 1.6 BARREL;inlet control
7 -3.43E+03 4.02E+05 19.52 26 5.4 41.2 0.0 44.E 25.1 29.9 25.1 1.2 BARREL;inlet control
. Pd W100.tl. 9N07

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Cherry Point MCAS Piedmont Olsen Hensley
Operatima Fecdity SWM Pond POH No.39596.0000
SINGLE RESERVOIR ROUTING SPREADSHEET
Chainuw Routing
Cherry Point MCAS OPERATIONS/MAINTENANCE FACILITY
Stormwater Management Pond
i
129 6 -3.46E+03 3.98E+05 19.48 26 5.4 40.4 36.9 0.0 42.3 24.9 48.9 24.9 0.9 BARREL;inlet wntrol
132 6 -3.49E+03 3.95E+05 19.43 25 5.3 39.6 34.7 0.0 40.1 24.7 48.5 24.7 0.6 BARREL;inlet control
135 5 -3.51E+03 3.91E+05 19.39 25 5.3 38.8 32.5 0.0 37.8 24.5 48.1 24.5 0.3 BARREL;inlet control
138 5 .3.52E+03 3.88E+05 19.35 24 5.3 37.9 30.4 0.0 35.6 24.3 47.7 24.3 0.1 BARREL;inlet control
141 4 -3.54E+03 3.84E+05 19.30 24 5.2 37.0 28.2 0.0 33.5 24.1 47.3 24.1 0.0 BARREL;inlet wntrol
144 4 -3.56E+03 3.81E+05 19.26 24 5.2 36.0 26.2 0.0 31.3 23.9 46.8 23.9 0.0 BARREL;Wet control
147 4 -3.60E+03 3.77E+05 19.21 24 5.1 35.1 24.1 0.0 29.2 23.7 46.4 23.7 0.0 BARREL;inlet control
150 3 -3.63E+03 3.73E+05 19.16 23 5.1 34.1 22.1 0.0 27.1 23.5 45.9 23.5 0.0 BARREL;inleteontrol
153 3 -3.65E+03 3.70E+05 19.12 23 5.0 33.0 20.1 0.0 25.1 23.2 45.5 23.2 0.0 BARREL;inlet control
156 3 -3.66E+03 3.66E+05 19.07 23 5.0 31.9 18.1 0.0 23.1 23.0 45.0 23.0 0.0 BARREL;inlet wntrol
1 159 2 -3.67E+03 3.62E+05 19.02 21 4.9 30.7 16.2 0.0 21.1 22.8 44.5 21.1 0.0 RISER as weir
162 2 -3.38E+03 3.59E+05 18.98 19 4.8 29.6 14.5 0.0 19.4 22.5 44.1 19.4 0.0 RISER weir
165 2 -3.1 IE+03 3.56E+05 18.94 18 4.8 28.6 13.0 0.0 17.3 22.3 43.7 17.8 0.0 RISER as weir
168 2 -2.86E+03 3.53E+05 18.90 16 4.9 27.6 11.7 0.0 16.5 22.2 43.3 16.5 0.0 RISER as weir
171 2 -2.65E+03 3.50E+05 18.87 15 4.7 26.6 10.5 0.0 15.2 22.0 42.9 15.2 0.0 RISER as weir
174 1 -2.46E+03 3.48E+05 18.83 14 4.7 25.7 9.4 0.0 14.1 21.8 42.6 14.1 0.0 RISER as weir
177 1 -2.28E+03 3.46E+05 18.80 13 4.6 24.8 8.5 0.0 13.1 2L6 42.2 13.1 0.0 RISER as weir
180 1 -2.13E+03 3.44E+05 18.78 12 4.6 23.9 7.6 0.0 12.2 21.5 41.9 12.2 0.0 RISERasweir
183 1 -1.99E+03 3.42E+05 18.75 11 4.6 23.0 6.8 0.0 11.4 21.4 41.6 11.4 0.0 RISER m weir
186 1 -1.86E+03 3.40E+05 18.72 11 4.5 22.2 6.1 0.0 10.6 21.2 41.4 10.6 0.0 RISER u weir
189 1 -1.74E+03 3.38E+05 18.70 10 4.5 21.4 5.5 0.0 10.0 21.1 41.1 10.0 0.0 RISER.weir
192 1 -1.64E+03 3.36E+05 18.68 9 4.5 20.6 4.9 0.0 9.4 21.0 40.9 9.4 0.0 RISER as weir
195 1 -1.54E+03 3.35E+05 18.66 9 4.5 19.8 4.3 0.0 8.8 20.9 40.6 8.8 0.0 RISER as weir
198 1 -1.46E+03 3.33E+05 18.64 8 4.4 19.0 3.9 0.0 8.3 20.8 40.4 8.3 0.0 RISER as weir
I 201 1 -1.38E+03 3.32E+05 18.62 8 4.4 18.3 3.4 0.0 7.8 20.7 40.2 7.8 0.0 RISER ne weir
204 1 -1.30E+03 3.31E+OS 18.60 7 4.4 17.5 3.0 0.0 7.4 20.6 40.0 7.4 0.0 RISER as weir
207 0 -L24E+03 3.29E+OS 18.59 7 4.4 16.8 2.6 0.0 7.0 20.5 39.8 7.0 0.0 RISER as weir
210 0 -1.18E+03 3.28E+OS 18.57 7 4.3 i6.1 2.3 0.0 6.7 20.4 39.7 6.7 0.0 RISER as weir
213 0 -1.12E+03 3.27E+05 18.55 6 4.3 15.3 2.0 0.0 6.3 20.3 39.5 6.3 0.0 RISER as weir
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V. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
Deed restrictions and protective covenants are required to be recorded for all low density projects and all
subdivisions prior to the sale of any lot. Please see Attachment A for the specific items that must be recorded
for the type of project applied for.
By your signature below,you certify that the recorded deed restrictions and protective covenants for this project
shall include all the items required by the permit, that the covenants will be binding on all parties and persons
claiming under them, that they will run with the land, that the covenant cannot be changed or deleted without
concurrence from the State, and that they will be recorded prior to the sale of any lot.
VI. OWNER'S CERTIFICATION
1, 2.D_ Nplson-Environmental Affairs Offigerertify that the information included on this permit
(Please prLK or type„mne clearly) by direction of the Commanding General ,
application form is correct, that the project will be constructed in conformance with the approved plans, that
the deed restrictions will be recorded with all required permit conditions, and that to the best of my knowledge,
the proposed project complies with the requirements of 15A NCAC 2H.1000.
I authorize the below named person or firm to submit stormwater plans on my behalf.
Owner/Authorized Agent Signature and Title Date
VII. AGENT AUTHORIZATION (m usrae coMPL=)
Person or firm name piedmont Olsen Hensley
Mailing Address 2301 Rexwoods Drive, Suite 200
City Raleigh State NC Zip 27607 Phone (919) 782-5511
Please submit application, fee, plans and calculations to the appropriate Regional Office.
cc: Applicant/WiRO//Central Files
Office use only