SW8090110_Historical File_20090130

J
WITHERS RAVEN ELAN 2009 D OF D p a
L
ENGINEERS I PLANNERS I SURVEYORS
i so Commonwealth Drive,Suite ioi DATE 01/21/09 JOB NO. 03080631.00
ATTENTION
WILMINGTON,NORTH CAROLINA,28403 Chris Baker
PHONE#
(gio)256-9277 RE Wilshire Landing Apartments
FAX(9io)256-2584
TO: Chris Baker
NC Division of Water Quality
127 Cardinal Drive Ext.
Wilmington, NC 284o5
WE ARE SENDING YOU El Attached ❑Under separate cover via the following items:
❑Shop Drawings El Prints ®Plans El Samples ❑Specifications
El Copy of Letter El Change order ❑ Diskette ® Other
COPIES DESCRIPTION
2 Sets of plans &Stormwater Narrative &Calculations
1 Wilshire Landing Apartments, LLC Articles of Incorporation
2 Stormwater Permit Application w/ $4.,000 Express Permitting Fee
1 Infiltration Basin Supplement
1 Infiltration Basin Operation and Maintenance Agreement
1 Permeable Pavement Supplement
1 Permeable Pavement Operation and Maintenance Agreement
THESE ARE TRANSMITTED as checked below:
►/ For approval ❑Approved as submitted El Resubmit copies for approval
El For your use El Approved as noted El Submit copies for distribution
El As requested El Returned for corrections El Return corrected prints
El For review and comment El
El FOR BIDS DUE 20 ❑ PRINTS RETURNED AFTER LOAN TO US
REMARKS:
For approval.
COPY TO: File SIGNED: -Garry S. Pape, P.E.
If enclosures are not as noted,kindly notify us at once.

5wtic c 1: 110
For DENR Use ONLY
North Carolina Department of Environment and Reviewer: C437
AIl
T
a
Natural Resources Submit \
---� Request for Express Permit Review Time: a'•°o
NCDENR
confirm is 166
FILL-IN all the information below and CHECK the Permit(s)you are requesting for express review. FAX or Email the completed form to Express
Coordinator along with a completed DETAILED narrative,site plan(PDF file)and vicinity map(same items expected in the application package
of the project location.Include this form in the application package.
• Asheville Region Alison Davidson 828-296-4698;alison.davidsonQ!ncmalnet
• Fayetteville or Raleigh Region-David Lee 919-791-4203;david lee(olncmail.net
• Mooresville&-Patrick Grogan 704-663-3772 or patrick.grogan(ilncmailnet
• Washington Region-Lyn Hardison 252-946-9215 or lvn.hardisonencmail.net
• Wilmington Region-Janet Russell 910-350-2004 or janetrusseIKd ncmail net
NOTE:Project application received after 12 noon will be stamped in the following work day.
Project Name:WILSHIRE LANDING APARTMENTS County: NEW HANOVER LJ ;\ s\r"e So P'd
Applicant:ADAM SOSNE, MEMBER MANAGER Company:WILSHIRE LANDING APARTMENTS, LLC
Address:700 MILITARY CUTOFF RD,SUITE 217 City:WILMINGTON, State: NC Zip:28405
Phone:[phone] Fax:[phone] Email: adamsosnet vahoo.com
Project is Drains into C SW waters Project Located in CAPE FEAR River Basin {,:., .r.. Vy
Engineer/Consultant:Garry S. Pape Company:Withers&Ravenel, Inc. in', �:, f.; E E
Address: 1410 COMMONWEALTH DR., SUITE 101 City:WILMINGTON, State: NC Zip: 8403
Phone:[phone] Fax: :[phone] Email:[e-mail] Wy 1 j M. 209
(Check all that apply)
❑Scoping Meeting ONLY ❑ DWQ, ❑ DCM, ❑ DLR, ❑OTHER:
❑Stream Origin Determination: #of stream calls—Please attach TOPO map marking the areas in questions
®State Stormwater ❑ General ❑SFR, ❑Bkhd &Bt Rmp, ❑Clear&Grub, 0 Utility
❑Low Density ❑ Low Density-Curb&Gutter _#Curb Outlet Swales ❑ Off-site[SW (Provide permit#)]
El High Density-Detention Pond _#Treatment Systems IN High Density-Infiltration 1#Treatment Systems
El High Density-Bio-Retention _#Treatment Systems ❑ High Density—Constructive Wetlands _# Treatment Systems
❑ High Density-Other _# Treatment Systems ❑ MODIFICATION SW (Provide permit#)
❑Coastal Management ❑ Excavation&Fill ❑ Bridges&Culverts ❑ Structures Information
❑ Upland Development ❑ Marina Development ❑ Urban Waterfront
❑ Land Quality ❑ Erosion and Sedimentation Control Plan with acres to be disturbed.(CK# (for DENR use))
WETLANDS QUESTIONS MUST BE ADDRESSED BELOW
❑ Wetlands(401): Check all that apply Isolated wetland on Property❑Yes❑ No
Wetlands on Site❑Yes® No Buffer Impacts: ❑ No El YES: acre(s)
Wetlands Delineation has been completed: ❑Yes El No Minor Variance: ❑ No❑YES
US ACOE Approval of Delineation completed: El Yes❑ No Major General Variance 0 No❑YES
404 Application in Process w/US ACOE: ❑Yes ❑ No 401 Application required: ❑Yes❑ No if YES, 0 Regular
Permit Received from US ACOE❑Yes❑ No Perennial, Blue line stream,etc on site 0 yes❑ No
For DENR use only
Fee Split for multiple permits: (Check# 1 Total Fee Amount $_
SUBMITTAL DATES Fee SUBMITTAL DATES Fee
CAMA $ Variance(❑Maj;❑Min) $
SW(14, HD,0 LD,0 Gen) $ , 000 401: $
LQS $ Stream Deter,_ $

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1

Wilshire Landing Apartments Express Review Request
Subject:Wilshire Landing Apartments Express Review Request
From:Garry Pape<[e-mail]>
Date:Wed, 14 Jan 2009 11:13:08-0500
To:Janet Russell<[e-mail]>
CC:"Chris Baker([e-mail])"<[e-mail]>,"'[e-mail]"'<[e-mail]>
Janet,
Attached is the info for the Wilshire Landing Apartments Express Stormwater Review Request. I would like to try to schedule a review for sometime next
week,either the 22nd or 23rd. I have already had a pre-conference with Chris Baker on the project and he is familiar with it. Thanks.-Gany
GARRY 8. PAPE, P.E.
WITHERS & RAVEN EL
vqw Commonwealth Utica.unit cur =mingloa.N.C.2atio3
tel aw.a56.92p feu:910.254.z5n4
w W w.wi th a rsravene I.coni
NOTICE OF CONFIDENTIALITY AND NONDISCLOSURE
This olectronk message,which Includes any attachments and otter documents referred to herein.contains infamiattoa ham Wailers a
Ravenei,Inc.that may be lewdly privileged and confideulia1.The Infonnat on is blended for the use of the addressee(s)only.If you are
not the addressee,note that any disclosure.copying.printing,distribution.arose of the contents of this message is prohibited.Ifyou
received this message in error,ptesse advise die sender by reply and delete lhIselec^.eon^message and any attachments.
COPyRIGIIT NOTICE:Copyright sinus by Withers a Rennet,Inc.Ad Rights Reserved by Withers&Ravenet,lac.This notice applies to
this ekectronic message,all attachments thereto,and all documents referred to therein.This electronic message,any attachments
thereto and all documents refereed to therein are ttie proprietary property of Withers&Ravenel,Inc.This electronic message,any
attachments thereto and all documents referred to therein are provided for the recipient's information only,and no rights are trans
fend by the transnilsslan of thiselectronfc message by Withers&Ravenel,irk.or receipt of this message by the recipient or any other
pares.
Content-Description:WILSHIRE VICINITY MAP.pdf
WILSHIRE VICINITY MAP.pdf Content-Type: application/pdf
•Content-Encoding: base64
1 Content-Description:WILSHIRE SITE LAYOUT.pdf
IWILSHIRE SITE LAYOUT.pdf Content-Type: application/pdf
Content-Encoding: base64
Content-Description:Wilshire Stormwater Narrative.doe
Wilshire Stormwater Narrative.doc.Content-Type: application/msword
Content-Encoding: base64
Content-Description:REQUEST FOR EXPRESS form.doc
REQUEST FOR EXPRESS form.doc Content-Type: application/msword
Content-Encoding: base64
I of 1 1/14/2009 12:43 PM

Z.e,t) 3e-a
operrft- SJ
STORMWATER NARRATIVE
WILSHIRE LANDING APARTMENTS
WILMINGTON, NC
SITE DESCRIPTION
This+/- 3.503 acre site is located at 4017 Wilshire Boulevard(Parcel#313715-53-8621) in the
City of Wilmington,New Hanover County,North Carolina. The site drains to the rear of the
property. This high density project will consist of the construction of 48 apartment units and
related site appurtenances. The proposed drainage area for this project is 2.24 acres,the
proposed disturbed area is 2.52 acres and the total amount of impervious area draining to the
stormwater infiltration basin is 77.5%. There are no wetlands located on site. The site will be
developed by Wilshire Landing Apartments, LLC do Adam Sosne—Member Manager.
Previously the site contained a church and parking lot that burned down in 2005. The amount of
BUA Pre-1988 was approx. 33,400 sf. Water& Sewer are available to the site via mains owned
by the CFPUA within Wilshire Blvd. An infiltration/SHWT determination was performed by
ECS Limited on 7/17/2008 and the SHWT depth at the proposed infiltration basin was
determined to be 48"and verified by Vincent Lewis on 1/7/2009 and the infiltration rate was
determined to be 9.3 in/hr. NCDOT has determined that a turn lane will not be required for this
project.
SOILS
The soils for this project consist of Seagate(Hydrologic Soil Group A/D)and Seagate-Urban
Land Complex(Hydrologic Soil Group By field judgment). These soils consist of somewhat
poorly drained, moderately permeable soils that formed in marine sediment.
STORM DRAINAGE DESIGN
The primary stormwater measure for this project is a proposed infiltration basin located at the
back of the property. The stormwater will be conveyed via overland sheet flow and a closed
conduit system to the proposed infiltration basin that is designed to treat the first 1.5" of rainfall
and to control the post development peak discharge for the 10-year storm event so as not to
exceed the pre-development peak runoff discharge rate to meet the City of Wilmington and the
state of North Carolina Stormwater Regulations. Both the 10 & 50-year events are controlled
and infiltrate based on the attached calculations and if the basin were to overflow the additional
stormwater would flow overland across the back of the site to an existing ditch that conveys the
stormwater to Burnt Mill Creek.
RECEIVE
„N ,, 4j 2009
PR•7J #___ 1

STORMWATER NARRATIVE
WILSHIRE LANDING APARTMENTS
WILMINGTON, NC
SITE DESCRIPTION
This+/- 3.503 acre site is located off Wilshire Boulevard in the City of Wilmington,New
Hanover County,North Carolina. The site drains to the rear of the property. The project will
consist of the construction of a 48 apartment units and related site appurtenances. The proposed
drainage area for this project is 2.24 acres and the total amount of impervious area draining to the
stormwater infiltration basin is 77.5%.
SOILS
The soils for this project consist of Seagate (Hydrologic Soil Group A/D)and Seagate-Urban
Land Complex(Hydrologic Soil Group By field judgment). These soils consist of somewhat
poorly drained,moderately permeable soils that formed in marine sediment.
STORM DRAINAGE DESIGN
The primary stormwater measure for this project is a proposed infiltration basin located at the
back of the property. The stormwater will be conveyed via overland sheet flow and a closed
conduit system to the proposed infiltration basin that is designed to treat the first 1.5" of rainfall
and to control the post development peak discharge for the 10-year storm event so as not to
exceed the pre-development peak runoff discharge rate to meet the City of Wilmington and the
state of North Carolina Stormwater Regulations. Both the 10 & 50-year events are controlled
and infiltrate based on the attached calculations and if the basin were to overflow the additional
stormwater would flow overland across the back of the site to an existing ditch that conveys the
stormwater to Burnt Mill Creek.
E C E
" JAN1r 2009
•
�a — _

about:blank
January 15,2009
Wilshire Landing Apartments
Gentlemen:
The Express Stormwater submittal meeting has been scheduled with Chris Baker on Thursday,January 22,2009 at 9:00 AM here in the
Wilmington Regional Office,127 Cardinal Drive Ext.,Wilmington 28405. The applicant or his assistant is required to attend the meeting.
Please review the submittal requirements,attached. Note that plans should be submitted folded to 9"x 14"to fit our file system. Since this project
is owned by an LLC,please carefully read the submittal requirements with regard to who signs the paperwork.
Please respond within 2 business days to confirm and reserve the submittal meeting date.
Thanks,
Janet Russell
Express Coordinator
1 of 1 1/15/2009 8:40 AM

RE:Express Appt.
Subject:RE:Express Appt.
From:Garry Pape<[e-mail]>
Date:Thu,15 Jan 2009 10:19:23-0500
To:"'Janet Russell'<[e-mail]>
Yes, he is available
Original Message
From: Janet Russell [mailto:[e-mail]
Sent: Thursday, January 15, 2009 10:14 AM
To: Garry Pape; [e-mail]
Subject: Re: Express Appt.
Is your applicant also available on the 21st at 9:00 AM?
Garry Pape wrote:
That should be fine.
Original Message
From: Janet Russell [mailto:[e-mail]]
Sent: Thursday, January 15, 2009 8:58 AM
To: Garry Pape; [e-mail]
Subject: Express Appt.
Chris says to please email you and let you know that January 21, Wednesday would be a better day to meet (9:00) if you're
available that day/time. Let me know.
Janet
1 of 1 1/15/2009 10:20 AM

% 0 110
WILSHIRE LANDING APARTMENTS
STORMWATER NARRATIVE
& CALCULATIONS
January 21, 2009
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Withers & Ravenel, Inc.
1410 Commonwealth Drive, Suite 101
Wilmington, North Carolina 28403
[phone]

STORMWATER NARRATIVE
WILSHIRE LANDING APARTMENTS
WILMINGTON, NC
SITE DESCRIPTION
This+/- 3.503 acre site is located at 4017 Wilshire Boulevard(Parcel#313715-53-8621)in the
City of Wilmington,New Hanover County,North Carolina. The site drains to the rear of the
property. This high density project will consist of the construction of 48 apartment units and
related site appurtenances. The proposed drainage area for this project is 2.24 acres,the
proposed disturbed area is 2.52 acres and the total amount of impervious area draining to the
stormwater infiltration basin is 77.5%. There are no wetlands located on site. The site will be
developed by Wilshire Landing Apartments,LLC do Adam Sosne—Member Manager.
Previously the site contained a church and parking lot that burned down in 2005. The amount of
BUA Pre-1988 was approx. 33,400 sf. Water& Sewer are available to the site via mains owned
by the CFPUA within Wilshire Blvd. An infiltration/SHWT determination was performed by
ECS Limited on 7/17/2008 and the SHWT depth at the proposed infiltration basin was
determined to be 48"and verified by Vincent Lewis on 1/7/2009 and the infiltration rate was
determined to be 9.3 in/hr. NCDOT has determined that a turn lane will not be required for this
project.
SOILS
The soils for this project consist of Seagate (Hydrologic Soil Group A/D) and Seagate-Urban
Land Complex(Hydrologic Soil Group By field judgment). These soils consist of somewhat
poorly drained,moderately permeable soils that formed in marine sediment.
STORM DRAINAGE DESIGN
The primary stormwater measure for this project is a proposed infiltration basin located at the
back of the property. The stormwater will be conveyed via overland sheet flow and a closed
conduit system to the proposed infiltration basin that is designed to treat the first 1.5"of rainfall
and to control the post development peak discharge for the 10-year storm event so as not to
exceed the pre-development peak runoff discharge rate to meet the City of Wilmington and the
state of North Carolina Stormwater Regulations. Both the 10 & 50-year events are controlled
and infiltrate based on the attached calculations and if the basin were to overflow the additional
stormwater would flow overland across the back of the site to an existing ditch that conveys the
stormwater to Burnt Mill Creek.
1

JAN 2 1
EROSION CONTROL PLAN FOR
WILSHIRE LANDING APARTMENTS
Area to be disturbed: +/- 2.52 acres
This+/- 3.503 acre site is located off Wilshire Boulevard in the City of Wilmington,New
Hanover County,North Carolina. The site drains to the rear of the property. The project
will consist of the construction of a 48 apartment units and related site appurtenances.
The proposed drainage area for this project is 2.24 acres and the total amount of
impervious area draining to the stormwater infiltration basin is 77.5%. The primary
stormwater measure for this project is a proposed infiltration basin located at the back of
the property that will act as a sediment basin during construction activities. The
stormwater will be conveyed via overland sheet flow and a closed conduit system to the
proposed infiltration basin that is designed to treat the first 1.5" of rainfall and to control
the post development peak discharge for the 10-year storm event so as not to exceed the
pre-development peak runoff discharge rate to meet the City of Wilmington and the state
of North Carolina Stormwater Regulations. Both the 10 & 50-year events are controlled
and infiltrate based on the attached calculations and if the basin were to overflow the
additional stormwater would flow overland across the back of the site to an existing ditch
that conveys the stormwater to Burnt Mill Creek.
EROSION CONTROL MEASURES: This project will primarily control erosion with the
use of a temporary construction entrance, outlet protection at the ends of culverts,
temporary diversion dikes, silt fence surrounding the site and a sediment basin.
The contractor shall install,maintain and remove upon completion the silt fence as
necessary to prevent any sediment from leaving the project limits. This will include any
temporary stockpile areas if necessary. Contractor shall clean and restore to pre-
construction conditions any areas that may inadvertently be damaged due to the failure of
the erosion control measures.
SCHEDULING OF WORK: Clearing and grubbing shall be scheduled and performed in
such a manner that fine grading operations and erosion control practices can follow
immediately thereafter. Excavation and embankment operations will be conducted such
that cuts and fills will be completed to final grades in a continuous operation. All
construction areas not otherwise protected shall be planted with permanent vegetative
cover in accordance with the specifications within 21 working days after completion of
active construction.
MINIMUM AREAS TO BE DISTURBED: Only those areas necessary for timely and
proper completion of the project shall be stripped of native vegetation. The angle for
graded sloped and fills shall be no greater than the angle which can be retained by
vegetative cover or other adequate erosion control devices or structures. Slopes left
exposed will, within 21 working days of completion of any phase of grading,be planted
or otherwise provided with ground cover, devices, or structures sufficient to restrain
erosion.

JAN 2 1 NUS
PLACEMENT OF SEDIMENT CONTROL DEVICES: All devices (temporary
diversions, sediment fences, construction entrances, etc.) for sediment control shall be
constructed prior to beginning clearing and grubbing on the site.
FINAL COVER: As soon as practicable after finished grades have been established, all
operations in connection with establishing final ground cover shall be performed. Any
inactive disturbed ground area to remain denuded more than 21 days shall be temporarily
seeded in accordance with the temporary seeding schedule as noted on the plans.

SEQUENCE OF CONSTRUCTION
1. Install temporary construction entrance as shown on erosion&sediment control plan.
2. Install perimeter controls (sediment basin, silt fence, tree protection fencing, etc.) as
shown on the erosion&sediment control plan. This step needs to be completed prior to
upslope land disturbing activities.
3. Once perimeter controls and sediment trapping measures are installed clear and grub
site within limits of disturbance.
4. Upon bringing the site to rough grade, stabilize all areas with temporary vegetation if
left undisturbed for 21 calendar days.
5. Once the storm sewers, sanitary sewers and waterlines are in place, install inlet
protection and outlet protection as shown on the erosion& sediment control plans.
6. Upon bringing the parking area to subgrade elevations, stabilize the areas by placing
stone base as early as possible.
7. For temporary vegetative stabilization of all denuded areas see note referencing the
erosion control program and specifications.
8. After construction operations have ended and all disturbed areas have stabilized,
mechanical sediment controls shall be removed. Sediment from temporary sediment
trapping devices shall be disposed of by spreading on the site or hauling away if not
suitable for fill. All denuded areas are to be permanently stabilized with permanent
vegetation.
9. Prior to using the sediment basin as an infiltration basin it shall be mucked out.

Drainage Area
Drainage Area DA 1 Infiltration Basin
Drainage Area 96,250 sf
Drainage Area 2.21 ac
Impervious Area Calculation
Buildings 23,040 sf
Pavement 44,426 sf
Sidewalks_ 5,962 sf
Permeable Pavement 1,206 sf (3,014sf use 60% pervious)
Total 74,634 sf
Total 1.71 ac
% Impervious 77.5%
Volume/Storage Calculation
Design Storm(P) 1.5 in
Schueler Method Runoff Coeff(RV) 0.75 RV= %IMP*0.009+0.05
Required Volume(Vreq) 8,998 cf Vreq =(P/12)*RV*DA
Infiltration Area#1
CONTOUR INCR ACCUM
CONTOUR AREA VOL VOL
[sq ft] [cu ft] [cu ft]
37.60 4,962 0 0
38.00 5,313 2,055 2,055
39.00 6,223 5,768 7,823
39.20 6,317 1,254 9,077
40.00 7,326 5,457 14,534
Infiltration Area#2
CONTOUR INCR ACCUM
CONTOUR AREA VOL VOL
[sq ft] [cu ft] [cu ft]
37.60 3,338 0 0
38.00 3,626 1,393 1,393
39.00 4,387 4,007 5,399
40.00 4,884 4,636 10,035
Entire Infiltration Basin
CONTOUR INCR ACCUM
CONTOUR AREA VOL VOL
[sq ft] [cu ft] [cu ft]
37.60 8,300 0 0
38.00 8,939 3,448 3,448
39.00 10,610 9,775 13,222
40.00 12,210 11,410 24,632
1 of 1

Type. . . . Master Network Summary Page 2.01
Name. . . . Watershed
File. . . . vJ:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
MASTER DESIGN STORM SUMMARY
Network Storm Collection: CITY OF WILMINGT
Total
Depth Rainfall
Return Event in Type RNF ID
10 6.7200 Synthetic Curve Typelll 24hr
50 9.0100 Synthetic Curve TypeIIl 24hr
ICPM CALCULATION TOLERANCES
Target Convergence= .000 cfs +/-
Max. Iterations = 35 loops
ICPM Time Step = 3.00 min
Output Time Step = 3.00 min
ICPM Ending Time = 2100.00 min
MASTER NETWORK SUMMARY
SCS Unit Hydrograph Method
(*Node=Outfall; +Node=Diversion;)
(Trun= HYG Truncation: Blank=None; L=Left; R=Rt; LR=Left&Rt)
Max
Return HYG Vol Qpeak Qpeak Max WSEL Pond Storage
Node ID Type Event cu.ft Trun min cfs ft cu.ft
*OUT 10 JCT 10 0 3.00 .00
*OUT 10 JCT 50 573 750.00 .64
POND 10 POND 10 45118 726.00 11.91
POND 10 POND 50 63434 726.00 16.37
POND 10 OUT POND 10 7576 732.00 6.37 39.29 9657
POND 10 OUT POND 10 0 .00 .00 (-Q)
POND 10 OUT POND 50 15373 729.00 12.85 39.80 13158
POND 10 OUT POND 50 -13 738.00 -.27 (-Q)
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:44 PM 12/15/2008

Type. . . . Master Network Summary Page 2.02
Name. . . . Watershed
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
ICPM CALCULATION TOLERANCES
Target Convergence= .000 cfs +/-
Max. Iterations = 35 loops
ICPM Time Step = 3.00 min
Output Time Step 3.00 min
ICPM Ending Time = 2100.00 min
MASTER NETWORK SUMMARY
SCS Unit Hydrograph Method
(*Node=Outfall; +Node=Diversion;)
(Trun= HYG Truncation: Blank=None; L=Left; R=Rt; LR=Left&Rt)
Max
Return HYG Vol Qpeak Qpeak Max WSEL Pond Storage
Node ID Type Event cu.ft Trun min cfs ft cu.ft
POND 20 POND 10 7576 732.00 6.37
POND 20 POND 10 0 .00 .00 (-Q)
POND 20 POND 50 15373 729.00 12.85
POND 20 POND 50 -13 738.00 -.27 (-Q)
POND 20 OUT POND 10 0 3.00 .00 39.01 5426
POND 20 OUT POND 50 573 750.00 .64 39.80 9088
SUBAREA 10 AREA 10 45118 726.00 11.91
SUBAREA 10 AREA 50 63433 726.00 16.37
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:44 PM 12/15/2008

Type. . . . Vol: Elev-Area Page 13.01
Name. . . . POND 10
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
Elevation Planimeter Area Al+A2+sgr(A1*A2) Volume Volume Sum
(ft) (sq.in) (sq.ft) (sq.ft) (cu.ft) (cu.ft)
37.60 4962 0 0 0
38.00 ----- 5313 15410 2055 2055
39.00 6223 17286 5762 7817
39.20 ----- 6317 18810 1254 9071
40.00 7326 20446 5452 14523
POND VOLUME EQUATIONS
* Incremental volume computed by the Conic Method for Reservoir Volumes.
Volume = (1/3) * (EL2-EL1) * (Areal + Area2 + sq.rt. (Areal*Area2) )
where: EL1, EL2 = Lower and upper elevations of the increment
Areal,Area2 Areas computed for EL1, EL2, respectively
Volume Incremental volume between EL1 and EL2
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:48 PM 12/15/2008

Type. . . . Vol: Elev-Area Page 13.02
Name. . . . POND 20
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
Elevation Planimeter Area Al+A2+sqr(Al*A2) Volume Volume Sum
(ft) (sq.in) (sq.ft) (sq.ft) (cu.ft) (cu.ft)
37.60 3338 0 0 0
38.00 3626 10443 1392 1392
39.00 ---- 4387 12001 4000 5393
40.00 4884 13900 4633 10026
POND VOLUME EQUATIONS
* Incremental volume computed by the Conic Method for Reservoir Volumes.
Volume = (1/3) * (EL2-EL1) * (Areal + Area2 + sq.rt. (Areal*Area2) )
where: EL1, EL2 = Lower and upper elevations of the increment
Areal,Area2 = Areas computed for EL1, EL2, respectively
Volume = Incremental volume between EL1 and EL2
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:49 PM 12/15/2008

Type. . . . Runoff CN-Area Page 7.01
Name. . . . SUBAREA 10
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
RUNOFF CURVE NUMBER DATA
Impervious
Area Adjustment Adjusted
Soil/Surface Description CN acres %C %UC CN
GRASSED AREAS 64 .480 64.00
PERMEABLE PAVEMENT 79 .070 79.00
IMPERVIOUS COVER 98 1.690 98.00
COMPOSITE AREA & WEIGHTED CN ---> 2.240 90.12 (90)
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:44 PM 12/15/2008

Type. . . . Outlet Input Data Page 14.01
Name. . . . BERM
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration. Basin.ppw
REQUESTED POND WS ELEVATIONS:
Min. Elev.= 37.60 ft
Increment = .10 ft
Max. Elev.= 40.00 ft
**********************************************
OUTLET CONNECTIVITY
**********************************************
---> Forward Flow Only (UpStream to DnStream)
<--- Reverse Flow Only (DnStream to UpStream)
<---> Forward and Reverse Both Allowed
Structure No. Outfall El, ft E2, ft
Weir-Rectangular W1 <-=-> TW 39.200 40.000
TW SETUP, DS Channel
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:44 PM 12/15/2008

Type. . . . Outlet Input Data Page 14.02
Name. . . . BERM
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
OUTLET STRUCTURE INPUT DATA
Structure ID = W1
Structure Type = Weir-Rectangular
# of Openings = L
Crest Elev. = 39.20 ft
Weir Length 78.10 ft
Weir Coeff. 3.000000
Weir TW effects (Use adjustment equation)
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:44 PM 12/15/2008

Type. . . . Pond Infiltration Calcs Page 15.01
Name. . . . POND 10
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
INFILTRATION RATING TABLE CALCULATIONS
Infilt. (cfs) = (9.3000 (in/hr) * Area) * Ku
Where: Ku = units conversion factor
W.S.Elev Total Area Infilt.
ft sq.ft cfs
No storage at this elevation. . . infiltration set to zero.
37.60 4962 .00
37.70 5049 1.09
37.80 5136 1.11
37.90 5224 1.12
38.00 5313 1.14
38.10 5401 1.16
38.20 5489 1.18
38.30 5578 1.20
38.40 5668 1.22
38.50 5759 1.24
38.60 5850 1.26
38.70 5942 1.28
38.80 6035 1.30
38.90 6129 1.32
39.00 6223 1.34
39.10 6270 1.35
39.20 6317 1.36
39.30 6439 1.39
39.40 6562 1.41
39.50 6687 1.44
39.60 6812 1.47
39.70 6939 1.49
39.80 7067 1.52
39.90 7196 1.55
40.00 7326 1.58
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:45 PM 12/15/2008

Type. . . . ICPM Node Routing Summary Page 15.02
Name. . . . POND 10 Tag: 10 Event: 10 yr
rile. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
Storm. . . Typelll 24hr Tag: 10
TCPM POND ROUTING SUMMARY
HYG Dir = W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\
Inflow HYG file = POND 10 IN 10
Outflow HYG file = POND 10 OUT 10
Pond Node Data POND 10
Pond Volume Data = POND 10
Pond Outlet Data = BERM
Infiltration = 9.3000 in/hr
INITIAL CONDITIONS CALCULATION TOLERANCES
Starting WS Elev = 37.60 ft Target Convergence= .000 cfs +/-
Starting Volume = 0 cu.ft Max. Iterations = 35 loops
Starting Outflow - .00 cfs ICPM Time Step = 3.00 min
Starting Infilt. = .00 cfs Output Time Step = 3.00 min
ICPM Ending Time = 2100.00 min
MAXIMUM STORAGE
Tp, min Elev, ft Vol, cu.ft
732.00 39.29 9657
FORWARD FLOW PEAKS REVERSE FLOW PEAKS
Tp, min Qp, cfs Tp, min Qp, cfs
Pond Inflow 726.00 11.91 .00 .00
Infiltration 729.00 1.38 .00 .00
Pond Outflow 732.00 6.37 .00 .00
TOTAL VOLUME IN TOTAL VOLUME OUT
Vol, cu.ft Direction Vol, cu.ft Direction
Pond Inflow 45118 Forward 0 Reverse
Infiltration 0 Reverse 37543 Forward
Pond Outflow 0 Reverse 7576 Forward
MASS BALANCE (cu.ft)
+ Initial Vol 0
+ Total Vol IN 45118
- Total Vol OUT 45120
- Ending Pond Vol 0 <-- (At 2100.00 min Elev.= 37.60 ft)
Difference -2 cu.ft (.003% of Outflow Volume)
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:45 PM 12/15/2008

Type. . . . Pond Infiltration Calcs Page 15.04
Name. . . . POND 20
File. . .. W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
INFILTRATION RATING TABLE CALCULATIONS
Infilt. (cfs) = (9.3000 (in/hr) * Area) * Ku
Where: Ku = units conversion factor
W.S.Elev Total Area Infilt.
ft sq.ft cfs
No storage at this elevation. . . infiltration set to zero.
37.60 3338 .00
37.70 3409 .73
37.80 3481 .75
37.90 3553 .76
38.00 3626 .78
38.10 3699 .80
38.20 3772 .81
38.30 3847 .83
38.40 3922 .84
38.50 3997 .86
38.60 4074 .88
38.70 4151 .89
38.80 4229 .91
38.90 4308 .93
39.00 4387 .94
39.10 4436 .95
39.20 4484 .97
39.30 4533 .98
39.40 4583 .99
39.50 4632 1.00
39.60 4682 1.01
39.70 4732 1.02
39.75 4757 1.02
39.80 4782 1.03
39.90 4833 1.04
40.00 4884 1.05
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:45 PM 12/15/2008

Type. . . . ICPM Node Routing Summary Page 15.05
Name. . . . POND 20 Tag: 10 Event: 10 yr
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
Storm. . . TypeIIl 24hr Tag: 1.0
ICPM POND ROUTING SUMMARY
HYG Dir W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\
Inflow HYG file POND 20 IN 10
Outflow HYG file = POND 20 OUT 10
Pond Node Data = POND 20
Pond Volume Data = POND 20
Pond Outlet Data = OUTLET
Infiltration = 9.3000 in/hr
INITIAL CONDITIONS CALCULATION TOLERANCES
Starting WS Elev = 37.60 ft Target Convergence= .000 cfs +/-
Starting Volume = 0 cu.ft Max. Iterations = 35 loops
Starting Outflow = .00 cfs ICPM Time Step = 3.00 min
Starting Infilt. = .00 cfs Output Time Step = 3.00 min
ICPM Ending Time = 2100.00 min
MAXIMUM STORAGE
Tp, min Elev, ft Vol, cu.ft
756.00 39.01 5426
FORWARD FLOW PEAKS REVERSE FLOW PEAKS
Tp, min Qp, cfs Tp, min Qp, cfs
Pond Inflow 732.00 6.37 .00 .00
Infiltration 753.00 .94 .00 .00
Pond Outflow 3.00 .00 .00 .00
TOTAL VOLUME IN TOTAL VOLUME OUT
Vol, cu.ft Direction Vol, cu.ft Direction
Pond Inflow 7576 Forward 0 Reverse
Infiltration 0 Reverse 7580 Forward
Pond Outflow 0 Reverse 0 Forward
MASS BALANCE (cu.ft)
+ Initial Vol 0
+ Total Vol IN 7576
- Total Vol OUT 7580
- Ending Pond Vol 0 <-- (At 2100.00 min Elev.= 37.60 ft)
Difference -4 cu.ft (.052% of Outflow Volume)
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:45 PM 12/15/2008

Type. . . . Hydrograph Page 10.41
Name. . . . POND 20 OUT Tag: 10 Event: 10 yr
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
Storm. . . Typelll 24hr Tag: 10
ICPM HYDROGRAPH. . .
HYG file =
HYG ID = POND 20 OUT
HYG Tag = 10
HYDROGRAPH ORDINATES (cfs)
Time Output Time increment = 3.00 min
min Time on left represents time for first value in each row.
.00 .00 .00 .00 .00 .00
15.00 .00 .00 .00 .00 .00
30.00 .00 .00 .00 .00 .00
45.00 .00 .00 .00 .00 .00
60.00 .00 .00 .00 .00 .00
75.00 .00 .00 .00 .00 .00
90.00 .00 .00 .00 .00 .00
105.00 .00 .00 .00 .00 .00
120.00 .00 .00 .00 .00 .00
135.00 ' .00 .00 .00 .00 .00
150.00 .00 .00 .00 .00 .00
165.00 ! .00 .00 .00 .00 .00
180.00 .00 .00 .00 .00 .00
195.00 .00 .00 .00 .00 .00
210.00 .00 .00 .00 .00 .00
225.00 .00 .00 .00 .00 .00
240.00 .00 .00 .00 .00 .00
255.00 .00 .00 .00 .00 .00
270.00 .00 .00 .00 .00 .00
285.00 .00 .00 00 .00 .00
300.00 .00 .00 .00 .00 .00
315.00 .00 .00 .00 .00 .00
330.00 .00 .00 .00 .00 .00
345.00 .00 .00 .00 .00 .00
360.00 .00 .00 .00 .00 .00
375.00 .00 .00 .00 .00 .00
390.00 .00 .00 .00 .00 .00
405.00 .00 .00 .00 .00 .00
420.00 .00 .00 .00 .00 .00
435.00 .00 .00 .00 .00 .00
450.00 .00 .00 .00 .00 .00
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:46 PM 12/15/2008

Type. . . . Hydrograph Page 10.42
Name. . . . POND 20 OUT Tag: 10 Event: 10 yr
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
Storm. . . TypeIIl 24hr Tag: 10
HYDROGRAPH ORDINATES (cfs)
Time Output Time increment = 3.00 min.
min Time on left represents time for first value in each row.
465.00 .00 .00 .00 .00 .00
480.00 .00 .00 .00 .00 .00
495.00 .00 .00 .00 .00 .00
510.00 .00 .00 .00 .00 .00
525.00 .00 .00 .00 .00 .00
540.00 .00 .00 .00 .00 .00
555.00 .00 .00 .00 .00 .00
570.00 .00 .00 .00 .00 .00
585.00 .00 .00 .00 .00 .00
600.00 .00 .00 _00 .00 00
615.00 .00 .00 .00 .00 .00
630.00 .00 .00 .00 .00 .00
645.00 .00 .00 .00 .00 .00
660.00 .00 .00 .00 .00 .00
675.00 .00 .00 .00 .00 .00
690.00 .00 .00 .00 .00 .00
705.00 I .00 .00 .00 .00 00
720.00 I .00 .00 .00 .00 00
735.00 I .00 .00 .00 .00 .00
750.00 I .00 .00 .00 .00 .00
765.00 I .00 .00 .00 .00 .00
780.00 I .00 .00 .00 .00 .00
795.00 i .00 .00 .00 .00 .00
810.00 .00 .00 .00 .00 .00
825.00 .00 .00 .00 .00 .00
840.00 _00 .00 .00 00 .00
855.00 .00 .00 .00 00 .00
870.00 .00 .00 .00 .00 .00
885.00 .00 .00 .00 .00 .00
900.00 .00 .00 .00 .00 .00
915.00 .00 .00 .00 .00 .00
930.00 .00 .00 .00 .00 .00
945.00 .00 .00 .00 .00 .00
960.00 .00 .00 .00 .00 .00
975.00 .00 .00 .00 .00 .00
990.00 .00 .00 .00 .00 .00
1005.00 .00 .00 .00 .00 .00
1020.00 .00 .00 .00 .00 .00
1035.00 .00 .00 .00 .00 .00
1050.00 .00 .00 .00 .00 .00
1065.00 .00 .00 .00 .00 .00
1080.00 .00 .00 .00 00 .00
1095.00 .00 .00 .00 .00 .00
1110.00 .00 .00 .00 .00 .00
1125.00 .00 .00 .00 .00 .00
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:46 PM 12/15/2008

Type. . . . Hydrograph Page 10.43
Name. . . . POND 20 OUT Tag: 10 Event: 10 yr
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
Storm. . . Typelll 24hr Tag: 10
HYDROGRAPH ORDINATES (cfs)
Time Output Time increment = 3.00 min
min Time on left represents time for first value in each row.
1140.00 .00 .00 .00 .00 .00
1155.00 .00 .00 .00 .00 .00
1170.00 .00 .00 .00 .00 .00
1185.00 .00 .00 .00 .00 .00
1200.00 .00 .00 .00 .00 .00
1215.00 .00 .00 .00 .00 .00
1230.00 .00 .00 .00 .00 .00
1245.00 .00 .00 .00 .00 .00
1260.00 .00 .00 .00 .00 .00
1275.00 .00 .00 .00 .00 .00
1290.00 .00 .00 .00 .00 .00
1305.00 I .00 .00 .00 .00 .00
1320.00 I .00 .00 .00 .00 .00
1335.00 I .00 .00 .00 .00 .00
1350.00 I .00 .00 .00 .00 .00
1365.00 I .00 .00 .00 .00 .00
1380.00 I .00 .00 .00 .00 .00
1395.00 I .00 .00 .00 .00 .00
1410.00 I .00 .00 00 .00 .00
1425.00 I .00 .00 .00 .00 00
1440.00 I .00 .00 00 .00 00
1455.00 I .00 .00 00 .00 _00
1470.00 I .00 .00 00 00 00
1485.00 I .00 .00 00 .00 .00
1500.00 I .00 .00 .00 .00 .00
1515.00 I _00 .00 .00 .00 .00
1530.00 I _00 .00 .00 .00 .00
1545.00 I .00 .00 .00 .00 .00
1560.00 I .00 .00 .00 .00 .00
1575.00 I .00 .00 .00 .00 .00
1590.00 I .00 .00 .00 .00 .00
1605.00 I .00 .00 .00 .00 .00
1620.00 .00 .00 .00 .00 .00
1635.00 .00 .00 .00 .00 .00
1650.00 ! .00 .00 .00 .00 .00
1665.00 .00 00 .00 .00 .00
1680.00 .00 .00 .00 .00 .00
1695.00 .00 .00 .00 .00 .00
1710.00 .00 .00 .00 .00 .00
1725.00 .00 .00 .00 .00 .00
1740.00 .00 .00 .00 .00 .00
1755.00 .00 .00 .00 .00 .00
1770.00 .00 .00 .00 .00 .00
1785.00 .00 .00 .00 .00 .00
1800.00 .00 .00 .00 .00 .00
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:46 PM 12/15/2008

Type. . . . Hydrograph Page 10.44
Name. . . . POND 20 OUT Tag: 10 Event: 10 yr
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
Storm. . . TypeTTI 24hr Tag: 10
HYDROGRAPH ORDINATES (cfs)
Time Output Time increment = 3.00 mir.
min Time on left represents time for first value in each row.
1815.00 .00 .00 .00 .00 .00
1830.00 .00 .00 .00 .00 .00
1845.00 .00 .00 .00 .00 .00
1860.00 .00 .00 .00 .00 .00
1875.00 .00 .00 .00 .00 .00
1890.00 .00 .00 .00 .00 .00
1905.00 .00 .00 .00 .00 .00
1920.00 .00 .00 .00 .00 .00
1935.00 .00 .00 .00 .00 .00
1950.00 .00 .00 .00 .00 .00
1965.00 .00 .00 .00 .00 .00
1980.00 .00 .00 .00 .00 .00
1995.00 .00 .00 .00 .00 .00
2010.00 .00 .00 .00 .00 .00
2025.00 .00 .00 .00 .00 .00
2040.00 .00 .00 .00 .00 .00
2055.00 .00 .00 .00 .00 .00
2070.00 .00 .00 .00 .00 .00
2085.00 .00 .00 .00 .00 .00
2100.00 .00
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:46 PM 12/15/2008

Type. . . . Hydrograph Page 10.17
Name. . . . POND 10 OUT Tag: 10 Event: 10 yr
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
Storm. . . Typelli 24hr Tag: 10
ICPM HYDROGRAPH. . .
HYG file =
HYG ID = POND 10 OUT
HYG Tag = 10
Peak Discharge = 6.37 cfs
Time to Peak = 732.00 min
HYG Volume = 7576 cu.ft
HYDROGRAPH ORDINATES (cfs)
Time Output Time increment = 3.00 min
min Time on left represents time for first value in each row_
.00 .00 .00 .00 .00 .00
15.00 .00 .00 .00 .00 .00
30.00 .00 .00 .00 .00 .00
45.00 .00 .00 .00 .00 .00
60.00 00 .00 .00 .00 .00
75.00 00 .00 .00 .00 .00
90.00 .00 .00 .00 .00 .00
105.00 .00 .00 .00 .00 .00
120.00 .00 .00 _00 .00 .00
135.00 .00 .00 _00 .00 .00
150.00 .00 .00 .00 .00 .00
165.00 .00 .00 _00 .00 .00
180.00 .00 .00 .00 .00 .00
195.00 .00 .00 .00 .00 .00
210.00 .00 .00 .00 .00 .00
225.00 00 .00 .00 .00 .00
240.00 .00 .00 .00 .00 .00
255.00 .00 .00 .00 .00 .00
270.00 .00 .00 .00 .00 .00
285.00 .00 .00 .00 .00 .00
300.00 .00 .00 .00 .00 .00
315.00 .00 .00 .00 .00 .00
330.00 .00 .00 .00 .00 .00
345.00 .00 .00 .00 .00 .00
360.00 .00 .00 .00 .00 .00
375.00 .00 .00 .00 .00 .00
390.00 .00 .00 .00 .00 .00
405.00 .00 .00 .00 .00 .00
420.00 .00 .00 .00 .00 .00
435.00 .00 .00 .00 .00 .00
450.00 .00 .00 .00 .00 .00
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:47 PM 12/15/2008

Type. . . . Hydrograph Page 10.18
Name. . . . POND 10 OUT Tag: 10 Event: 10 yr
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
Storm. . . Typelil 24hr Tag: 10
HYDROGRAPH ORDINATES (cfs)
Time Output Time increment = 3.00 min
min Time on left represents time for first value in each row.
465.00 .00 .00 .00 .00 .00
480.00 .00 .00 .00 .00 .00
495.00 .00 .00 .00 .00 .00
510.00 .00 .00 .00 .00 .00
525.00 .00 .00 .00 .00 .00
540.00 .00 .00 .00 .00 .00
555.00 .00 .00 .00 .00 .00
570.00 .00 .00 .00 .00 .00
585.00 .00 .00 .00 .00 00
600.00 .00 .00 .00 .00 .00
615.00 .00 .00 .00 .00 .00
630.00 .00 .00 .00 .00 .00
645.00 .00 .00 .00 .00 .00
660.00 .00 .00 _00 .00 .00
675.00 .00 .00 .00 .00 .00
690.00 .00 .00 _00 .00 .00
705.00 .00 .00 .00 .00 .00
720.00 .00 .00 2.00 5.71 ( .37
735.00 5.73 4.94 4.19 3.50 2.84
750.00 2.19 1.60 .10 .73 .49
765.00 .33 .21 .12 .04 .00
780.00 .00 .00 .00 .00 .00
795.00 .00 .00 .00 .00 .00
810.00 .00 .00 .00 .00 .00
825.00 .00 .00 .00 .00 .00
840.00 .00 .00 .00 .00 .00
855.00 .00 .00 .00 .00 .00
870.00 .00 .00 .00 .00 .00
885.00 .00 .00 .00 .00 .00
900.00 .00 .00 .00 .00 .00
915.00 .00 .00 .00 .00 .00
930.00 .00 .00 .00 .00 .00
945.00 .00 .00 .00 .00 .00
960.00 .00 .00 .00 .00 .00
975.00 .00 .00 .00 .00 .00
990.00 .00 .00 .00 .00 .00
1005.00 .00 .00 .00 .00 .00
1020.00 .00 .00 _00 .00 .00
1035.00 .00 .00 .00 .00 .00
1050.00 .00 .00 .00 .00 .00
1065.00 .00 ,00 .00 .00 .00
1080.00 .00 .00 .00 .00 .00
1095.00 .00 .00 .00 .00 .00
1110.00 .00 .00 .00 .00 .00
1125.00 .00 .00 .00 .00 .00
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:47 PM 12/15/2008

Type. . . . Hydrograph Page 10.19
Name. . . . POND 10 OUT Tag: 10 Event: 10 yr
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
Storm. . . Typelli 24hr. Tag: 10
HYDROGRAPH ORDINATES (cfs)
Time I Output Time increment = 3.00 min
min Time on left represents time for first value in each row.
1140.00 .00 .00 .00 .00 .00
1155.00 .00 .00 .00 .00 .00
1170.00 .00 .00 .00 .00 .00
1185.00 .00 .00 .00 .00 .00
1200.00 .00 .00 .00 .00 .00
1215.00 .00 .00 .00 .00 .00
1230.00 .00 .00 .00 .00 .00
1245.00 .00 .00 .00 .00 .00
1260.00 .00 .00 .00 .00 .00
1275.00 .00 .00 .00 .00 .00
1290.00 00 .00 .00 .00 .00
1305.00 00 .00 .00 .00 .00
1320.00 00 .00 00 .00 .00
1335.00 .00 .00 .00 .00 .00
1350.00 .00 .00 .00 .00 .00
1365.00 .00 .00 00 .00 .00
1380.00 .00 .00 .00 .00 .00
1395.00 .00 .00 .00 .00 .00
1410.00 .00 .00 .00 .00 .00
1425.00 .00 .00 .00 .00 .00
1440.00 .00 .00 .00 .00 .00
1455.00 .00 _00 .00 .00 .00
1470.00 .00 .00 .00 .00 .00
1485.00 .00 _00 .00 .00 .00
1500.00 .00 .00 .00 .00 .00
1515.00 .00 .00 00 .00 .00
1530.00 .00 .00 .00 .00 .00
1545.00 .00 .00 _00 .00 .00
1560.00 .00 .00 .00 .00 .00
1575.00 .00 .00 _00 .00 .00
1590.00 .00 .00 .00 .00 .00
1605.00 .00 .00 .00 .00 .00
1620.00 .00 .00 .00 .00 .00
1635.00 .00 .00 .00 .00 .00
1650.00 .00 .00 .00 .00 .00
1665.00 .00 .00 .00 .00 .00
1680.00 .00 .00 .00 .00 .00
1695.00 .00 .00 .00 .00 .00
1710.00 .00 .00 .00 .00 .00
1725.00 .00 .00 .00 .00 .00
1740.00 .00 .00 .00 .00 .00
1755.00 .00 .00 .00 .00 .00
1770.00 .00 .00 00 .00 .00
1785.00 .00 .00 .00 .00 .00
1800.00 .00 .00 .00 .00 .00
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:47 PM 12/15/2008

Type. . . . Hydrograph Page 10.20
Name. . . . POND 10 OUT Tag: 10 Event: 10 yr
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
Storm. . . TypeTTT 24hr Tag: 10
HYDROGRAPH ORDINATES (cfs)
Time Output Time increment = 3.00 min
min Time on left represents time for first value in each row.
1815.00 .00 .00 .00 .00 .00
1830.00 .00 .00 .00 .00 .00
1845.00 .00 .00 .00 .00 .00
1860.00 .00 .00 .00 .00 .00
1875.00 .00 .00 .00 .00 .00
1890.00 .00 .00 .00 .00 .00
1905.00 .00 .00 .00 .00 .00
1920.00 .00 .00 .00 .00 .00
1935.00 .00 .00 .00 .00 .00
1950.00 .00 .00 .00 .00 .00
1965.00 .00 .00 .00 .00 .00
1980.00 _00 .00 .00 .00 .00
1995.00 .00 .00 .00 .00 .00
2010.00 .00 00 .00 .00 .00
2025.00 .00 .00 .00 .00 .00
2040.00 .00 .00 .00 _00 .00
2055.00 .00 .00 .00 .00 .00
2070.00 .00 _00 .00 .00 .00
2085.00 .00 .00 .00 00 .00
2100.00 .00
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:47 PM 12/15/2008

Type. . . . ICPM Node Routing Summary Page 15.03
Name. . . . POND 10 Tag: 50 Event: 50 yr
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
Storm. . . Typelll 24hr Tag: 50
ICPM POND ROUTING SUMMARY
HYG Dir = W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\
Inflow HYG file = POND 10 IN 50
Outflow HYG file = POND 10 OUT 50
Pond Node Data = POND 10
Pond Volume Data = POND 10
Pond Outlet Data = BERM
Infiltration = 9.3000 in/hr
INITIAL CONDITIONS CALCULATION TOLERANCES
Starting WS Elev = 37.60 ft Target Convergence= .000 cfs +/-
Starting Volume = 0 cu.ft Max. Iterations = 35 loops
Starting Outflow .00 cfs 1CPM Time Step = 3.00 min
Starting Infilt. = .00 cfs Output Time Step = 3.00 min
ICPM Ending Time = 2100.00 min
MAXIMUM STORAGE
Tp, min Elev, ft Vol, cu.ft
753.00 39.80 13158
FORWARD FLOW PEAKS REVERSE FLOW PEAKS
Tp, min Qp, cfs Tp, min Qp, cfs
Pond Inflow 726.00 16.37 .00 .00
Infiltration 750.00 1.52 738.00 .00
Pond Outflow 729.00 12.85 738.00 -.27
TOTAL VOLUME IN TOTAL VOLUME OUT
Vol, cu.ft Direction Vol, cu.ft Direction
Pond Inflow 63434 Forward 0 Reverse
Infiltration 0 Reverse 48080 Forward
Pond Outflow 13 Reverse 15373 Forward
MASS BALANCE (cu.ft)
+ Initial Vol 0
+ Total Vol IN 63447
- Total Vol OUT 63453
- Ending Pond Vol 0 <-- (At 2100.00 min Elev.= 37.60 ft)
Difference -6 cu.ft (.009% of Outflow Volume)
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:45 PM 12/15/2008

Type. . . . ICPM Node Routing Summary Page 15.06
Name. . . . POND 20 Tag: 50 Event: 50 yr
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
Storm. . . Typelll 24hr Tag: 50
ICPM POND ROUTING SUMMARY
HYG Dir W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\
Inflow HYG file POND 20 IN 50
Outflow HYG file POND 20 OUT 50
Pond Node Data POND 20
Pond Volume Data POND 20
Pond Outlet Data - OUTLET
Infiltration = 9.3000 in/hr
INITIAL CONDITIONS CALCULATION TOLERANCES
Starting WS Elev = 37.60 ft Target Convergence= .000 cfs +/-
Starting Volume = 0 cu.ft Max. Iterations = 35 loops
Starting Outflow = .00 cfs ICPM Time Step = 3.00 min
Starting Infilt. = .00 cfs Output Time Step = 3.00 min
ICPM Ending Time = 2100.00 min
MAXIMUM STORAGE
Tp, min Elev, ft Vol, cu.ft
750.00 39.80 9088
FORWARD FLOW PEAKS REVERSE FLOW PEAKS
Tp, min. Qp, cfs Tp, min Qp, cfs
Pond Inflow 729.00 12.85 738.00 -.27
Infiltration 747.00 1.03 738.00 .00
Pond Outflow 750.00 .64 738.00 .00
TOTAL VOLUME IN TOTAL VOLUME OUT
Vol, cu.ft Direction Vol, cu.ft Direction
Pond Inflow 15373 Forward 13 Reverse
Infiltration 0 Reverse 14787 Forward
Pond Outflow 0 Reverse 573 Forward
MASS BALANCE (cu.ft)
+ Initial Vol 0
+ Total Vol IN 15373
- Total Vol OUT 15374
- Ending Pond Vol 0 <-- (At 2100.00 min Elev.= 37.60 ft)
Difference -1 cu.ft (.010% of Outflow Volume)
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:46 PM 12/15/2008

Type. . . . Hydrograph Page 10.45
Name. . . . POND 20 OUT Tag: 50 Event: 50 yr
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
Storm. . . TypeIIl 24hr Tag: 50
ICPM HYDROGRAPH. . .
HYG file =
HYG ID = POND 20 OUT
HYG Tag = 50
Peak Discharge = .64 cfs
Time to Peak = 750.00 min
HYG Volume = 573 cu.ft
HYDROGRAPH ORDINATES (cfs)
Time Output Time increment = 3.00 min
min Time on left represents time for first value in each row.
.00 .00 .00 .00 .00 .00
15.00 .00 .00 .00 .00 .00
30.00 .00 .00 .00 .00 .00
45.00 .00 .00 .00 .00 .00
60.00 .00 .00 .00 .00 .00
75.00 .00 .00 .00 .00 .00
90.00 .00 .00 .00 .00 .00
105.00 .00 .00 .00 .00 .00
120.00 .00 .00 .00 .00 .00
135.00 .00 .00 .00 .00 .00
150.00 .00 .00 .00 .00 .00
165.00 .00 .00 .00 .00 .00
180.00 .00 .00 .00 .00 .00
195.00 .00 .00 .00 .00 .00
210.00 .00 .00 .00 .00 .00
225.00 .00 _00 .00 .00 .00
240.00 .00 .00 .00 .00 .00
255.00 .00 .00 .00 .00 .00
270.00 .00 .00 .00 .00 .00
285.00 .00 .00 .00 .00 .00
300.00 .00 .00 00 .00 .00
315.00 .00 .00 .00 .00 .00
330.00 .00 .00 .00 .00 .00
345.00 .00 .00 .00 .00 .00
360.00 .00 .00 .00 .00 .00
375.00 .00 .00 .00 .00 .00
390.00 .00 .00 .00 .00 .00
405.00 .00 .00 .00 .00 .00
420.00 .00 .00 .00 .00 .00
435.00 .00 .00 .00 .00 .00
450.00 .00 00 .00 .00 .00
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:46 PM 12/15/2008

Type. . . . Hydrograph Page 10.46
Name. . . . POND 20 OUT Tag: 50 Event: 50 yr
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
Storm. . . Typelll 24hr Tag: 50
HYDROGRAPH ORDINATES (cfs)
Time Output Time increment = 3.00 min
min Time on left represents time for first value in each row.
465.00 .00 .00 .00 .00 .00
480.00 .00 .00 .00 .00 .00
495.00 .00 00 .00 .00 .00
510.00 .00 .00 .00 .00 .00
525.00 .00 .00 .00 .00 00
540.00 .00 .00 .00 .00 .00
555.00 .00 00 .00 .00 .00
570.00 .00 .00 .00 .00 .00
585.00 .00 .00 .00 .00 .00
600.00 .00 .00 .00 .00 .00
615.00 .00 .00 .00 .00 00
630.00 .00 .00 .00 .00 .00
645.00 .00 .00 .00 00 .00
660.00 .00 .00 .00 .00 .00
675.00 .00 .00 .00 00 .00
690.00 .00 .00 .00 .00 .00
705.00 .00 .00 .00 00 .00
720.00 .00 .00 .00 00 .00
735.00 00 .00 .00 .00 .54
750.00 64 .53 .48 .42 .30
765.00 18 .09 .00 .00 .00
780.00 00 .00 .00 .00 00
795.00 00 .00 .00 .00 .00
810.00 .00 .00 .00 .00 00
825.00 .00 00 .00 .00 .00
840.00 00 .00 .00 .00 .00
855.00 00 .00 .00 .00 .00
870.00 00 .00 .00 .00 .00
885.00 .00 .00 .00 .00 .00
900.00 .00 .00 .00 .00 .00
915.00 .00 .00 .00 .00 .00
930.00 .00 .00 .00 .00 .00
945.00 .00 .00 .00 .00 .00
960.00 .00 .00 .00 .00 .00
975.00 .00 .00 .00 .00 .00
990.00 .00 .00 00 .00 .00
1005.00 .00 .00 .00 .00 .00
1020.00 .00 .00 .00 .00 .00
1035.00 .00 .00 .00 .00 .00
1050.00 .00 .00 .00 .00 .00
1065.00 .00 .00 .00 .00 .00
1080.00 .00 .00 .00 .00 .00
1095.00 .00 .00 .00 .00 .00
1110.00 .00 .00 .00 .00 .00
1125.00 .00 .00 .00 .00 .00
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:46 PM 12/15/2008

Type. . . . Hydrograph Page 10.47
Name. . . . POND 20 OUT Tag: 50 Event: 50 yr
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
Storm. . . Typelll 24hr Tag: 50
HYDROGRAPH ORDINATES (cfs)
Time Output Time increment = 3.00 min
min Time on left represents time for first value in each row.
1140.00 .00 .00 .00 .00 .00
1155.00 .00 .00 .00 .00 .00
1170.00 .00 .00 .00 .00 .00
1185.00 .00 .00 .00 .00 .00
1200.00 .00 .00 .00 .00 .00
1215.00 .00 .00 .00 .00 .00
1230.00 .00 .00 .00 .00 .00
1245.00 .00 .00 .00 .00 .00
1260.00 .00 .00 .00 .00 .00
1275.00 .00 .00 .00 00 .00
1290.00 .00 .00 .00 .00 .00
1305.00 .00 .00 .00 .00 .00
1320.00 .00 .00 .00 .00 .00
1335.00 .00 .00 .00 .00 .00
1350.00 .00 .00 .00 00 .00
1365.00 .00 .00 .00 .00 .00
1380.00 .00 .00 .00 .00 .00
1395.00 .00 .00 .00 00 .00
1410.00 .00 .00 .00 00 .00
1425.00 .00 .00 .00 .00 00
1440.00 .00 .00 .00 .00 .00
1455.00 .00 .00 .00 .00 .00
1470.00 .00 .00 .00 00 .00
1485.00 .00 00 .00 00 .00
1500.00 .00 .00 .00 .00 .00
1515.00 .00 .00 .00 .00 .00
1530.00 .00 .00 00 .00 .00
1545.00 .00 .00 .00 .00 .00
1560.00 .00 .00 .00 .00 .00
1575.00 .00 .00 .00 .00 .00
1590.00 .00 .00 .00 .00 .00
1605.00 .00 .00 .00 .00 .00
1620.00 .00 .00 .00 .00 .00
1635.00 .00 .00 .00 .00 .00
1650.00 .00 .00 .00 .00 .00
1665.00 .00 .00 .00 .00 .00
1680.00 .00 .00 .00 .00 .00
1695.00 .00 .00 .00 .00 .00
1710.00 .00 .00 .00 .00 .00
1725.00 .00 .00 .00 .00 .00
1740.00 .00 .00 .00 .00 .00
1755.00 .00 .00 .00 .00 .00
1770.00 i .00 .00 .00 .00 .00
1785.00 .00 .00 .00 .00 .00
1800.00 00 .00 .00 .00 .00
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:46 PM 12/15/2008

Type. . . . Hydrograph Page 10.48
Name. . . . POND 20 OUT Tag: •50 Event: 50 yr
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
Storm. . . TypeIIl 24hr Tag: 50
HYDROGRAPH ORDINATES (cfs)
Time 1 Output Time increment = 3.00 mir.
min Time on left represents time for first value in each row.
1815.00 .00 .00 .00 .00 .00
1830.00 .00 .00 .00 .00 .00
1845.00 .00 .00 .00 .00 .00
1860.00 .00 .00 .00 .00 .00
1875.00 .00 .00 .00 .00 .00
1890.00 .00 .00 .00 .00 .00
1905.00 .00 .00 .00 .00 .00
1920.00 .00 .00 .00 .00 .00
1935.00 .00 .00 .00 .00 .00
1950.00 .00 .00 .00 .00 .00
1965.00 .00 .00 .00 .00 .00
1980.00 .00 .00 .00 .00 .00
1995.00 .00 .00 .00 .00 .00
2010.00 .00 .00 .00 .00 .00
2025.00 .00 .00 .00 .00 .00
2040.00 .00 .00 .00 .00 .00
2055.00 .00 .00 .00 .00 .00
2070.00 .00 .00 .00 .00 .00
2085.00 .00 .0.0 .00 00 .00
2100.00 .00
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:46 PM 12/15/2008

Type. . . . Hydrograph Page 10.21
Name. . . . POND 10 OUT Tag: 50 Event: 50 yr
file. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
Storm. . . TypeIIl 24hr Tag: 50
ICPM HYDROGRAPH. . .
HYG file =
HYG ID = POND 10 OUT
HYG Tag = 50
POSITIVE FLOW NEGATIVE FLOW
Peak Discharge = 12.85 cfs Peak Discharge = -.27 cfs
Time to Peak = 729.00 min Time to Peak = 738.00 min
HYG Volume = 15373 cu.ft HYG Volume = -13 cu.ft
HYDROGRAPH ORDINATES (cfs)
Time Output Time increment = 3.00 min
min Time on left represents time for first value in each row.
.00 .00 .00 .00 .00 .00
15.00 .00 .00 .00 .00 .00
30.00 .00 .00 .00 .00 .00
45.00 .00 .00 .00 .00 .00
60.00 .00 .00 .00 .00 .00
75.00 .00 00 .00 .00 .00
90.00 .00 .00 .00 .00 .00
105.00 .00 00 .00 .00 .00
120.00 .00 .00 .00 .00 .00
135.00 .00 .00 .00 .00 .00
150.00 .00 .00 .00 00 .00
165.00 .00 .00 .00 .00 .00
180.00 .00 .00 .00 00 .00
195.00 .00 .00 .00 00 .00
210.00 .00 .00 .00 .00 .00
225.00 .00 .00 .00 .00 .00
240.00 .00 .00 .00 .00 .00
255.00 .00 .00 .00 .00 .00
270.00 .00 .00 .00 .00 .00
285.00 .00 .00 .00 .00 .00
300.00 .00 00 .00 .00 .00
315.00 .00 .00 .00 .00 .00
330.00 .00 .00 .00 .00 .00
345.00 .00 .00 .00 .00 .00
360.00 .00 .00 .00 .00 .00
375.00 .00 .00 .00 .00 .00
390.00 .00 .00 .00 .00 .00
405.00 .00 .00 .00 .00 .00
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:47 PM 12/15/2008

Type. . . . Hydrograph Page 10.22
Name. . . . POND 10 OUT Tag: 50 Event: 50 yr
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
Storm. . . TypeIIl 24hr Tag: 50
HYDROGRAPH ORDINATES (cfs)
Time Output Time increment = 3.00 min
min Time on left represents time for first value in each row.
420.00 .00 .00 .00 .00 .00
435.00 .00 .00 .00 .00 .00
450.00 .00 .00 .00 .00 .00
465.00 .00 .00 .00 .00 .00
480.00 .00 .00 .00 .00 00
495.00 .00 .00 .00 .00 .00
510.00 .00 .00 .00 .00 .00
525.00 .00 .00 .00 .00 .00
540.00 .00 .00 .00 .00 .00
555.00 .00 .00 .00 .00 _00
570.00 .00 .00 .00 .00 _00
585.00 .00 .00 .00 .00 _00
600.00 .00 .00 .00 .00 .00
615.00 .00 .00 .00 .00 .00
630.00 .00 .00 .00 .00 .00
645.00 .00 .00 .00 .00 .00
660.00 .00 .00 .00 .00 .00
675.00 .00 .00 .00 .00 .00
690.00 .00 .00 .00 .00 .00
705.00 .00 .00 .00 .00 .00
720.00 2.49 8.39 12.00 12.85 11.33
735.00 , 8.45 -.27 .26 3.75 2.54
750.00 1.24 1.36 1.43 1.12 .95
765.00 .92 .84 .72 .64 .69
780.00 .66 .59 .57 .58 .57
795.00 .56 .54 .54 .53 .52
810.00 .51 51 .49 .47 .48
825.00 .47 .46 .45 .42 .44
840.00 .44 .42 .41 .35 .40
855.00 .42 .40 .39 .00 .00
870.00 .00 .00 .00 .00 .00
885.00 .00 .00 .00 .00 .00
900.00 .00 .00 .00 .00 .00
915.00 .00 .00 .00 .00 .00
930.00 .00 .00 .00 .00 .00
945.00 .00 .00 .00 .00 .00
960.00 .00 .00 .00 .00 .00
975.00 .00 .00 .00 .00 .00
990.00 .00 .00 .00 .00 .00
1005.00 .00 .00 .00 .00 .00
1020.00 .00 .00 .00 .00 .00
1035.00 .00 .00 .00 .00 .00
1050.00 .00 .00 .00 .00 .00
1065.00 .00 .00 .00 .00 .00
1080.00 .00 .00 .00 .00 .00
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:47 PM 12/15/2008

Type. . . . Hydrograph Page 10.23
Name. . . . POND 10 OUT Tag: 50 Event: 50 yr
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
Storm. . . TypeIIl 24hr Tag: 50 -
HYDROGRAPH ORDINATES (cfs)
Time Output Time increment - 3.00 min
min Time on left represents time for first value in each row.
1095.00 .00 .00 .00 .00 .00
1110.00 .00 .00 .00 .00 .00
1125.00 .00 .00 .00 .00 .00
1140.00 .00 .00 .00 .00 .00
1155.00 .00 .00 .00 .00 .00
1170.00 .00 .00 .00 .00 .00
1185.00 .00 .00 _00 .00 .00
1200.00 .00 .00 .00 .00 .00
1215.00 .00 .00 .00 .00 .00
1230.00 .00 .00 .00 .00 .00
1245.00 .00 .00 .00 .00 .00
1260.00 .00 .00 .00 .00 .00
1275.00 .00 .00 .00 .00 .00
1290.00 .00 .00 00 .00 .00
1305.00 00 .00 _00 .00 .00
1320.00 .00 .00 00 .00 .00
1335.00 00 .00 00 .00 .00
1350.00 00 .00 00 .00 .00
1365.00 .00 .00 .00 .00 .00
1380.00 .00 .00 .00 .00 .00
1395.00 .00 00 .00 .00 .00
1410.00 .00 .00 .00 .00 .00
1425.00 .00 .00 .00 .00 .00
1440.00 .00 .00 .00 .00 .00
1455.00 .00 .00 .00 .00 .00
1470.00 .00 .00 .00 .00 .00
1485.00 .00 .00 .00 .00 .00
1500.00 .00 .00 .00 .00 .00
1515.00 .00 .00 .00 .00 .00
1530.00 .00 .00 .00 .00 .00
1545.00 .00 .00 .00 .00 .00
1560.00 .00 .00 .00 .00 .00
1575.00 .00 .00 .00 .00 .00
1590.00 .00 .00 .00 .00 .00
1605.00 .00 .00 .00 .00 .00
1620.00 .00 .00 .00 .00 .00
1635.00 .00 .00 .00 .00 .00
1650.00 .00 .00 .00 .00 .00
1665.00 .00 .00 _00 .00 .00
1680.00 .00 .00 .00 .00 .00
1695.00 .00 .00 .00 .00 .00
1710.00 .00 .00 .00 .00 .00
1725.00 .00 .00 .00 .00 .00
1740.00 .00 .00 .00 .00 .00
1755.00 .00 .00 .00 .00 .00
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:47 PM 12/15/2008

Type. . . . Hydrograph Page 10.24
Name. . . . POND 10 OUT Tag: 50 Event: 50 yr
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
Storm. . . TypeIIl 24hr Tag: 50
HYDROGRAPH ORDINATES (cfs)
Time Output Time increment = 3.00 min
min Time on left represents time for first value in each row.
1770.00 .00 .00 .00 .00 .00
1785.00 .00 .00 .00 .00 .00
1800.00 .00 .00 .00 .00 .00
1815.00 .00 .00 .00 .00 .00
1830.00 00 .00 .00 .00 .00
1845.00 .00 .00 .00 .00 .00
1860.00 .00 .00 00 .00 .00
1875.00 .00 .00 .00 .00 .00
1890.00 00 .00 .00 .00 .00
1905.00 00 .00 .00 .00 .00
1920.00 00 .00 .00 00 .00
1935.00 00 .00 .00 .00 .00
1950.00 .00 .00 00 .00 .00
1965.00 .00 .00 00 .00 .00
1980.00 .00 .00 .00 .00 .00
1995.00 .00 .00 00 .00 .00
2010.00 .00 .00 00 .00 .00
2025.00 .00 .00 00 .00 .00
2040.00 00 .00 .00 00 .00
2055.00 00 00 .00 00 .00
2070.00 .00 .00 .00 00 .00
2085.00 .00 .00 .00 00 .00
2100.00 00
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:47 PM 12/15/2008

Type. . . . Design Storms Page 4.02
Name. . . . CITY OF WILMINGT Event: 10 yr
File. . . . W:\08\08-0630\080631-Wilshire Landing Townhomes\H-H\Infiltration Basin.ppw
Storm. . . TypeTTI 24hr Tag: 10
DESIGN STORMS SUMMARY
Design Storm File,ID = CITY OF WILMINGT
Storm Tag Name = 10
Data Type, File, ID = Synthetic Storm Typeill 24hr
Storm Frequency = 10 yr
Total Rainfall Depth= 6.7200 in
Duration Multiplier = 1
Resulting Duration = 1440.00 min
Resulting Start Time= .00 min Step= 6.00 min End= 1440.00 min
Storm Tag Name 50
DaLd Type, File, ID = Synthetic Storm Typelli 24hr
Storm Frequency = 50 yr
Total Rainfall Depth= 9.0100 in
Duration Multiplier = 1
Resulting Duration = 1440.00 min
Resulting Start Time= .00 min Step= 6.00 min End= 1440.00 min
S/N: Bentley Systems, Inc.
Bentley PondPack (10.00.027.00) 4:47 PM 12/15/2008

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ALP ECS CAROLINAS, LLP
CAROLWAS Geotechnical• Construction Materials Environmental •Facilities jui 18 2008
Y
Mr.Adam Sosne
NC Seal,LLC
700 Military Cutoff Road,Suite 217
Wilmington,North Carolina 28405
Re: Infiltration Evaluation
4017 Wilshire Boulevard
Wilmington,North Carolina
ECS Project No.22.14265
Dear Mr.Sosne,
ECS Carolinas, LLP (RCS) recently conducted an infiltration evaluation for the proposed
infiltration areas at the site located at 4017 Wilshire Boulevard in Wilmington,North Carolina.
This letter,with attachments,is the report of our evaluation.
Meld Testing
On July 17, 2008 ECS conducted an exploration of the subsurface soil conditions at two
requested locations shown on the attached Site Diagram. The test areas were located in the field
utilizing a boring location map provided by Withers & Ravenel. The purpose of this
exploration was to obtain subsurface information of the suitability of the in-place soils for the
proposed infiltration area. We explored the subsurface soil conditions by advancing one hand
auger boring into the existing ground surface at the two requested boring locations. We visually
classified the subsurface soils end obtained representative samples of each soil type
encountered. We also recorded the seasonal high water level(SHWL) observed at the time of
each hand auger boring. The attached Infiltration.Evaluation porn provides a summary of the
subsurface conditions encountered at each hand auger boring location.
The SHWL was estimated at each boring location below the existing grade elevation. Below is
a summary of each boring location.
Location SHWL
36 inches
2 48 inches
We have conducted two infiltration tests utilizing a compact constant head penneameter near
hand auger borings to estimate the infiltration rate for the subsurface soils. The infiltration tests
are typically con. at two feet above the SHWL.
7211 Ogden Business Park•Suite 201 *Wilmington,NC 28411 "[phone]•Fax[phone]•www.ecslimited.com
Asheville.NC•Charlotte,NC•Owensboro,NC•°awhile,SC•Raleigh,NC•Swimsbore.NC*•Wilmington,NC
*testing services only

Infiltration Evalpation
4017 Wilshire Boulevard
Wilmington;.North Carolina
ECS Project No:22.14265
Field Test Results
Below is a summary of the infiltration test results:
Location Description Depth Inches/hour Inches/minute
1 Grey fine SAND 12 inches 4.0 0.06
wlsilt
2 Grey fine SAND 24 inches 9.3: 015
Infiltration rates and SHWL may vary within the proposed site due to changes in elevation and
subsurface conditions.
If you have any questions regarding this report,please contact us at(910)686-9114.
Aespecttfully,
ECS•CAROLINA,S,LLP
CiP)
344 ifif
K.Brooks Wall Walid M.Solah,P.B.
Staff Geologist Principal Ettgineer
NC License No.22983
CC:Garry Pape,PE-Withers&Raavenel
Attachments: Site.Diagram
Infiltration Evaluation

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•TEST LOCATIONS
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' •• 4017 Wiltillire•lilltd•
.H I •••••' . ECS Project No.22-14265
'..- .':. 'vyfitufogtott,..NC
•---.. C'''N• ., July 17, 2008
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Infiltration Evaluation
4017 Wilshire Boulevard
Wilmington, North Carolina
ECS Project No. 22.14265
July 17, 2008
Location Depth Soil Description
1 0-18" Grey fine SAND w/silt
18"-22" Brown fine silty SAND (possible pan)
22"-50" Tan fine SAND
Seasonal High.Water Table was estimated to be at 36 inches below the existing
grade elevation.
Infiltration Rate: 0.06 inches per minute(4.0 inches per hour)
Test was conducted at 12 inches below existing grade elevation
Location Depth Soil Description
2 0-24" Grey fine SAND
24"-32" Brown fine silty SAND (possible pan)
32"-50" Tan clayey SAND
Seasonal High Water Table was estimated to be at 48 inches below the existing
grade elevation.
Infiltration Rate: 0.15 inches per minute(9.3 inches per hour)
Test was conducted at 24 inches below existing grade elevation

Book 6524 Page 2217
BK: RB 6524
PG:2217-2221 NC FEE$26.00
RECORDED 2021060612
1 212 8/2 0 21 NEW HANOVER COUNTY, REAL ESTATE
08:50:11 AM TAMMY THEUSCH PIVER
REGISTER OF DEEDS EXTX$39072.00
BY:KELLIE GILES
DEPUTY
ELECTRONICALLY RECORDED
Excise Tax:$39,072.00 Parcel IDs:R05514-004-010-000 and R055 1 4-004-0 1 1-000
Prepared by:Longleaf Law Partners,4509 Creedmoor Road,Suite 302,Raleigh,NC 27612(LPC)
(without title examination)
Return to:Grantee
Brief Description for the Index 4009,4017,and 4019 Wilshire Boulevard,
Wilmington,North Carolina
NORTH CAROLINA SPECIAL WARRANTY DEED
23
THIS DEED is made as of this 1-a day of December,2021, by and between
GRANTOR GRANTEE
GATEWAY PREISS WILSHIRE,LLC, WILSHIRE LANDING LCP LLC,
a Delaware limited liability company a Delaware limited liability company
with a mailing address of: with a mailing address of:
1700 Hillsborough Street 218 Broad Street
Raleigh,North Carolina 27605 Red Bank,New Jersey 07701
Enter in appropriate block for each party:name,address,and,if appropriate,character of entity,e.g.,corporation or partnership.
The designation Grantor and Grantee as used herein shall include said parties, their heirs, successors, and assigns, and shall
include singular,plural,masculine,feminine or neuter as required by context.
WITNESSETH, that Grantor, for a valuable consideration paid by Grantee, the receipt of which is
hereby acknowledged, has and by these presents does grant, bargain, sell and convey unto Grantee in fee
simple, all that certain lot or parcel of land(the"Property")situated in City of Wilmington,New Hanover
County,North Carolina,and more particularly described as follows:
See Exhibit A attached hereto and incorporated herein by reference.
Submitted electronically by "Madison Title Agency, LLC'
in compliance with North Carolina statutes governing recordable documents
and the terms of the submitter agreement with the New Hanover County Register of Deeds.

Book 6524 Page 2218
The Property was acquired by Grantor by instrument(s) recorded in Book 5786, Page 2122 in the New
Hanover County,North Carolina, Public Registry(the"Registry").
All or a portion of the Property herein conveyed does not include the primary residence of Grantor.
TO HAVE AND TO HOLD the Property and all privileges and appurtenances thereto belonging to
Grantee in fee simple.
And Grantor covenants with Grantee, that Grantor has done nothing to impair such title as Grantor
received, and Grantor will warrant and defend the title against the lawful claims of all persons claiming
by,under or through Grantor,except for the exceptions hereinafter stated.
Title to the Property hereinabove described is subject to the exceptions listed in Exhibit B attached hereto
and incorporated herein by reference.
[Signature Page Follows]

Book 6524 Page 2219
IN WITNESS WHEREOF, Grantor has hereunto set its hand the day and year first above
written.
GRANTOR:
GATEWAY PREISS WILSHIRE,LLC,
a Delaware limited liability company
By:
Name: Donna Preiss
Title: Authorized Signatory
STATE OF Al V
COUNTY OF kvae.,
I certify that the following person personally appeared before me this day and acknowledged to
me that he or she voluntarily signed the foregoing document for the purpose stated therein and in the
capacity indicated:Donna Preiss.
This the / day of December, 2021.
My Commission Expires:
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Book 6524 Page 2220
•
EXHIBIT A
LYING AND BEING in the County of New Hanover, State of North Carolina, and being more
particularly described as follows:
TRACT 1:
COMMENCING AT AN EXISTING IRON PIPE LYING AT THE INTERSECTION OF THE NORTHERN
RIGHT-OF-WAY OF WILSHIRE BLVD, A SIXTY FOOT PUBLIC RIGHT-OF-WAY, AND THE
EASTERN RIGHT-OF-WAY OF MONTCLAIR DRIVE, THENCE ALONG THE NORTHERN RIGHT-OF-WAY
OF WILSHIRE BLVD SOUTH 65 DEGREES 09' 07" EAST, 127. 72 FEET TO AN EXISTING IRON
PIPE; THENCE SOUTH 65 DEGREES 05' 31" EAST, 175.16 FEET TO A NEW MAG NAIL SET
IN THE CONCRETE SIDEWALK (SAID POINT FORMERLY OCCUPIED BY A CONCRETE MONUMENT,
NOW DESTROYED), SAID MONUMENT IS THE SOUTHEASTERN MOST CORNER OF THE PROPERTY
DESCRIBED AND IS THE POINT AND PLACE OF BEGINNING, THENCE DEPARTING SAID
RIGHT-OF-WAY OF WILSHIRE BLVD AND ALONG THE COMMON LINE WITH WILSHIRE LANDING
LP (DB 5427, PG 374) , NOW OR FORMERLY, NORTH 24 DEGREES 42' 22" EAST, 882.56
FEET TO A CONCRETE MONUMENT LYING ON THE COMMON LINE WITH NOW OR FORMERLY
KAYSER ENTERPRISES TWO, LLC (DB 4903, PG 1953); THENCE WITH SAID COMMON LINE
WITH KAYSER SOUTH 82 DEGREES 01' 36" EAST, 175. 68 FEET TO A POINT ON THE COMMON
LINE WITH MULBERRY PLACE SUBDIVISION (MB 33, PG 156) ; THENCE WITH THE COMMON
LINE OF SAID MULBERRY SUBDIVISION, TWIN WOOD SUBDIVISION- SECTION 2 (MB 24/19)
AND TWINWOOD SUBDIVISION- SECTION I (MB 24/32), SOUTH 24 DEGREES 43' 38" WEST,
933. 70 FEET (CROSSING AN EIP AT A DISTANCE OF 23, 69 FEET) TO AN EXISTING IRON
ROD ON THE RIGHT--OF-WAY OF WILSHIRE BLVD, THENCE WITH SAID RIGHT-OF-WAY NORTH
65 DEGREES 06' 35" WEST, I67.88 FEET TO SAID NEW MAG NAIL (SAID POINT FORMERLY
OCCUPIED BY A CONCRETE MONUMENT, NOW DESTROYED) AND THE POINT AND PLACE OF
BEGINNING.
TRACT 2:
COMMENCING AT AN EXISTING IRON PIPE LYING AT THE INTERSECTION OF THE NORTHERN
RIGHT-OF-WAY OF WILSHIRE BLVD, A SIXTY FOOT PUBLIC RIGHT--OF--WAY AND THE EASTERN
RIGHT-OF-WAY OF MONTCLAIR DRIVE, THENCE ALONG THE NORTHERN RIGHT-OF-WAY OF
WILSHIRE BLVD SOUTH 65 DEGREES 09 MINUTES 07 SECONDS EAST, 127.12 FEET TO AN
EXISTING IRON PIPE; THENCE SOUTH 65 DEGREES 05 MINUTES 31 SECONDS EAST, 175.16
FEET TO A NEW MAG NAIL SET IN THE CONCRETE SIDEWALK (SAID POINT FORMERLY
OCCUPIED BY A CONCRETE MONUMENT, NOW DESTROYED), SAID MAG NAIL IS THE
SOUTHEASTERN MOST CORNER OF THE PROPERTY DESCRIBED AND IS THE POINT AND PLACE
OF BEGINNING, THENCE DEPARTING SAID RIGHT-OF-WAY OF WILSHIRE BLVD. AND ALONG
THE COMMON LINE WITH WILSHIRE LANDING LP (DB 5427, PG 374) , NOW OR FORMERLY,
NORTH 24 DEGREES 42 MINUTES 22 SECONDS EAST, 882.56 FEET TO A CONCRETE MONUMENT
LYING ON THE COMMON LINE WITH NOW OR FORMERLY KAYSER ENTERPRISES TWO, LLC (DEED
BOOK 4903 AT PAGE 1953) ; THENCE WITH SAID COMMON LINE WITH KAYSER NORTH 82
DEGREES 02 MINUTES 07 SECONDS WEST, 167.39 FEET TO AN EXISTING CONCRETE
!MONUMENT ON THE COMMON LINE WITH MONTCLAIR SUBDIVISION SECTION "A" (MAP BOOK 10
AT PAGE 14) ; THENCE WITH THE SAID' COMMON LINE WITH MONTCLAIR SUBDIVISION, AND
PASSING THROUGH SEVERAL EXISTING IRON PIPES ALONG THE WAY, SOUTH 25 DEGREES 43
!MINUTES 38 SECONDS WEST, 833.85 FEET TO AN EXISTING IRON PIPE ON THE
RIGHT-OF-WAY OF WILSHIRE BLVD; THENCE WITH SAID RIGHT-OF-WAY SOUTH 65 DEGREES
05 MINUTES 31 SECONDS EAST, 175.16 FEET TO SAID MAG NAIL (SAID POINT FORMERLY
OCCUPIED BY A CONCRETE MONUMENT, NOW DESTROYED) AND THE POINT AND PLACE OF
BEGINNING.

Book 6524 Page 2221
EXHIBIT B
Permitted Exceptions
1. Ad valorem property taxes on the Property for the calendar year during which the sale of the
Property closes and subsequent years not yet due and payable;
2. Rights of tenants as tenants only, without the right of first refusal or option to purchase, under
unrecorded leases.
3. Easement granted to Carolina Power&Light Company recorded on May 20, 1983 in Book 1223
Page 168.
4. Pedestrian Access Easement granted to the City of Wilmington recorded on April 30, 2010 in
Book 5482 Page 2844 as Instrument No.2010011710.
5. Easement granted to BellSouth Telecommunications, Inc. d/b/a AT&T North Carolina recorded
on May 2,2011 in Book 5560 Page 2927 as Instrument No.2011011987.
6. Easement granted to Progress Energy Carolinas, Inc. recorded on May 17, 2011 in Book 5563
Page 2291 as Instrument No.2011013436.
7. Pedestrian Easement granted to the City of Wilmington recorded on May 20, 2011 in Book 5564
Page 1201 as Instrument No.2011013811.
8. Memorandum of Agreement made by and between Spectrum Southeast,LLC and Gateway Preiss
Wilshire, LLC recorded on April 15, 2021 in Book 6436 Page 2504 as Instrument No.
2021018681.
9. Those matters as disclosed by that certain Survey prepared by James Henson of AEI Consultants,
Project/Job Number 21-9205 dated 11/16/2021,last revised 11,11ki12,1 ,