HomeMy WebLinkAboutSW8901210_HISTORICAL FILE_19980416STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 Ci01'2-'0
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
® HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
\(1CA80LA1k
YYYYMMDD
-.1State'of North Carolina
Department of Environment
and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Division of Water Quality
April 16, 1998
Mr. Ronald McNeill, Managing Partner
S & R Partnership
2320 Forty-first Street
Wilmington, NC 28403
WA
16
'A94 , RL
C®ER
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND N/ URAL RESOURCES
Subject: Permit No. SW8 901210 Modification
Liberty Commons Expansion/Brightmore Assisted Living
High Density Commercial Stormwater Project
New Hanover County
Dear Mr. McNeill:
The Wilmington Regional Office received the modification to the Stormwater Management Permit Application for Liberty
Commons Expansion/Brightmore Assisted Living Center on December 23, 1997, with final information on April 16, 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. SW8 901210 Modification dated April
16, 1998, for the construction of Liberty Commons Expansion/Brightmore Assisted Living Center.
This permit shall be effective from the date of issuance until April 16, 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.
If you have any questions, or need additional information concerning this matter, please contact Linda Lewis, or me at
(910) 395-3900.
Sincerely,
Rick Shiver, P.G.
Acting Regional Water Quality Supervisor
RSS/arl: S:\WQS\STORMWAT\PERMIT\901210.APR
cc: John Tunstall, P.E.
Tony Roberts, New Hanover County Inspections
David Mayes, P.E., City of Wilmington Engineering
Beth Easley, New Hanover County Engineering
Linda Lewis
Wilmington Regional Office
Central Files
127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone 910-395-3900 FAX 910-350-2004
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper
State Stormwater Management Systems
Permit No SW8 901210 Modification
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
' u�.: u ► : ui '
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
S & R Partnership
Liberty Commons Expansion/Brightmore Assisted Living Center
New Hanover County
FOR THE
construction, operation and maintenance of a detention pond 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.
This permit shall be effective from the date of issuance until April 16, 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 3 of this
permit, the Project Data Sheet. The stormwater control has been designed to handle the runoff from 203,259 square
feet of impervious area.
3. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the
permit.
4. The tract will be limited to the amount of built -upon area indicated on page 3 of this permit, and per approved
plans.
2
t
State Stormwater Management Systems
Permit No SW8 901210 Modification
Project Name:
Permit Number:
Location:
Applicant:
Mailing Address:
Application Date:
Water Body Receiving Stormwater Runo
Classification of Water Body:
If Class SA, chloride sampling results:
Pond Depth, feet:
Permanent Pool Elevation, FMSL:
Total Impervious Surfaces, ft2:
Offsite Area entering Pond, ft2:
Required Surface Area, ft2:
Provided Surface Area, ft2:
Required Storage Volume, ft3:
Provided Storage Volume, ft3:
Temporary Storage Elevation, FMSL:
Controlling Orifice:
DIVISION OF WATER QUALITY
PROJECT DATA SHEET
Liberty Commons Expansion/Brightmore Assisted Living Center
SW8 901210 Modification
New Hanover County
Mr. Ronald McNeill, Managing Partner
S & R Partnership
2320 Forty-first Street
Wilmington, NC 28403
December 23, 1997
ff. Hewlett's Creek
"SA"
No data available, pond permitted prior to requiring testing
3.5
37.5
203,259
None, per Engineer
20,326
20,496
16,862
21,841
38.5
2"$ pipe
3
State Stormwater Management Systems
Permit No SW8 901210 Modificatin
5. All runoff from the built -upon area within the pond's drainage area on the site must be directed into the permitted
stormwater control system.
6. The permittee is responsible for verifying that the proposed built -upon area does not exceed the allowable built -
upon area.
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.
f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan
In addition, the Director may determine that other revisions to the project should require a modification to the
permit.
8. 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.
H. SCHEDULE OF COMPLIANCE
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 it's entirety, vegetated and operational for it's
intended use prior to the construction of any built -upon surface except roads.
b. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be
repaired immediately.
The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater
system functions at optimum efficiency. The approved Operation and Maintenance Plan must be followed in its
entirety and maintenance must occur at the scheduled intervals including, but not limited to:
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.
g. Access to the outlet structure must be available at all times.
3. 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.
4. Decorative spray fountains will not be allowed in the ponds.
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.
ld
State Stormwater Management Systems
Permit No SW8 901210 Modification
6. Upon completion of construction, prior to issuance of a Certificate of Occupancy, 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. Any deviations from the approved plans and specifications must be noted on
the Certification.
7. A copy of the approved plans and specifications shall be maintained on file by the Permittee for a minimum of ten
years from the date of the completion of construction.
8. Prior to the sale of any portion of the property, an access/maintenance easement to the stormwater facilities shall
be granted in favor of the permittee if access to the stormwater facilities will be restricted by the sale of any portion
of the property.
M. 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 143-215.6A to 143-
215.6C.
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.
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 permittee grants DENR Staff permission to enter the property for the purpose of inspecting all components
of the permitted stormwater management facility.
6. 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 16th day of April, 1998,
NORTH CAROLINA(E�NVI,R�ONMMEENTTAL MANAGEMENT COMMISSION
A. Preston Howard, Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW8 901210 Modification
5
State Stormwater Management Systems
Permit No. SWS 901210 Mgglification
Liberty Commons Expansion/Brightmore Assisted Living Center
Stormwater Permit No. SW8 901210 Modification
New Hanover County
Engineer's Certification
1, , 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,
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.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
0
DIVISION OF WATER QUALITY
A&K 97265/
97117
NORTH CAROLINA STORMWATER MANAGEMENT PERMIT APPLICATION
I. GENERAL INFORMATION
(Please print clearly or type)
1. Project Name: Liberty Commons Expansion
2. Location, directions to project (include County, Address, State Road) Attach man. New Hanover
3. Owner's Name: S & R Partnership Phone: 910-350-1980
4. Owner's Mailing Address: 2320 41 st Street
City Wilmington State NC Zip 28403
5. Nearest Receiving Stream U.T. Hewletts Creek Class SA
6. Project description Liberty Commons Expansion -Alzheimer Addtion & Brightmore Assited Living
II. PERMIT INFORMATION
1. Permit No.(TobefilledinbyDwQ)
2. Application Date December 16, 1997 Fee enclosed S385 00
3. Permit Type New Renewal X Modification(existing Permit No.) 901210
4. Proj Type Low Density X Detention Infiltration Redevelop General Alter Offsite
5. Other State/Federal Permits/Approvals Required (Check appropriateblank:)
CAMA Major Sedimentation/Erosion Control X 404 Permit
III. BUILT UPON AREA (Please see NCAC2H. 1005 thru. 1007for applicable density limits)
Overall BUA New
Drainage Drainage Breakdown of Impervious Area
Basin Basin (Please indicate below the design impervious area)
Classification
SA
Existing Built -upon Area
2.60 ac
Proposed Built -upon Area
2.07 ac 2_G7�
Total Project Area
8.91 ac 8-94-ac
% Impervious Area
52.4%
New Development
Buildings 35,400 ft2 new
Streets
Parking/SW 46,076 Ft2 / 8,626 Ft2
Other:
Exist. Dev.
41,298 ft2
71.859 ft2
Totals New Imp.=90,102 Ft2 = 2.07 ac I 2.60 ac
IV. STORMWATER TREATMENT (Describe how the runoff will be treated)
Expand existing stormwater detention pond designed for 90% TSS Removal
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
I, UNALI� / % t/YiL/(.L , certify that the information included on this permit
(Please print or type name clearly)
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 non ,gerWn or firm, jo submit stormwater plans on my behalf.
Owner/Authorized Agent Signature and Title
VH. AGENT AUTHORIZATION (MusrBECOMPL=)
Person or firm name John S. Tunstall, RE / Andrew & Kuske Consulting Engineers, Inc.
Mailing Address 902 Market Street
City Wilmington State NC Zip 28401
Date
Phone 910-343-9653
Please submit application, fee, plans and calculations to the appropriate Regional Office.
cc: Applicant/WiRO//Central Files
Office Use Only
®RMWATE
D
E C E I V E
DEC 2 31997 D
PROJ N �IVIC> "z IU
OpIi 1-6 20:40
0 K 9-343960A
State of North Carolina
Department of Environrfient and Natural Resources
Wilmington Regional Office
I -
James B. Hunt, Governor Wayne McDevitt, Secretary
FAX COVER SHEET
Date:
To:
CO:
FAX
fdMARkS:
No. Of Pages:
From: L1'17dli.
CO: W(G?
FAX#:910-350-2004
127 Cardinpt Drive Extension, Wilmington, N.C. U405.3345 Telephone (910) 395.3900 Fax. (9l0) 350-2oo4
An Equal Opportunity Akirmative Action Finployer
0 K I / 19-3439604
State of Norit
D-elpartment of Environm
Wilmington Re@
Janjes B. Hunt, Governor
FAX
Date:
To:
CO:
FAX
REMARKS.
Carolina
and Natural Resources
,onal Office
SHEET
Pages:
�-O�f P
Apr 16 '98 20:31
Wayne McDevitt, Secretary
z
127 Cardinal Drivi ExttilsionW11mington, N.C. 28405.3845 Telephone (9 to) 39s_390u r.x (oill) 350-204
An Equal Opportunity A&irmative Action Employer
State of North Carolina
Department of Environment and Natural Resources
Wilmington Regional Office
James B. Hunt, Governor Wayne McDevitt, Secretary
FAX COVER SHEET
Date:
4 - l Co -c( a
To:
C�hTU
Ise zl
CO: Andrew
e� 'U "
FAX #:
343 %04
REMARKS:
No. Of Pages: 2 _
From: Z-M 2 L 2 4-,15
CO: ,DWG?
FAX#: 910-350-2004
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 Telephone (910) 395-3900 Fa: (910) 350-20041
An Equal Opportunity Affirmative Action Employer
State of North Carolina
Department of Environment
and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Division of Water Quality
April 15, 1998
Mr. John Tunstall, P.E.
Andrew and Kuske
902 Market Street
Wilmington, NC 28401
o
it
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: ACKNOWLEDGEMENT OF RECEIPT AND
REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SW8 901210 Modification
Liberty Commons Addition/Brightmore Assisted Living
New Hanover County
Dear Mr. Tunstall:
The Wilmington Regional Office received previously requested information for the Stormwater
Management Permit Application for Liberty Commons Addition/Brightmore Assisted Living on February
27, 1998. A preliminary review of that information has determined that the application is not complete. The
following information is needed to continue the stormwater review:
I am unable to find any dimensions for the new buildings on any of the plan sheets.
Please note that this request for additional information is in response to a preliminary review. The
requested information should be received by this Office prior to May 15, 1998, or the application will be
returned as incomplete. The return of a project will necessitate resubmittal of all required items, including
the application fee.
If you have any questions concerning this matter please feel free to call me at (910) 395-3900.
Sincerely,
X� e
Ms. Linda Lewis
Environmental Engineer
RSS/arl: S:\WQS\STORMWAT\ADDINFO\901210.APR
cc: Linda Lewis
Central Files
127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone 910-395-3900 FAX 910-350-2004
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper
FEB 2 7 1998 John R. Andrew, P.E.
Andrew & Kuske J.A. Kuske, P.E.
CONSULTING ENGINEERS, INC. BY: J. Phillip Norris, P.E.
902 Market St. • Wilmington, North Carolina 28401-4733 • Telephone 910/343-9653 • Fax 910/343-9604
February 27, 1998
NCDENR/Div. of Environmental Mgmt.
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Attn: Ms. Linda Lewis
RE: Stormwater Permit SW8 901210
Liberty Commons Alzheimer Addition and Brightmore Assisted Living
A & K Project No. 97265/97117
Dear Ms Lewis:
Please find the following responses to your comment of February 20, 1998.
1. Please find pond drainage area delineated.
2. Application revised.
3. O & M revised.
4. Building roof area and sidewalk dimensions are shown.
5. Pond section revised.
6. Normal pool dimensions on plan.
7. 38.5 contour delineated.
8. The previous permitted BUA is not known by our company. For this permit modification an
as built survey was conducted and incorporated into the future building plans. All
impervious area (existing and new) was calculated by computer and is included in the pond
calculations for which the pond was expanded to accommodate. Please find a plan
showing drainage area pertinent to this pond.
9. Surface area created by expansion exceeds the required surface area based on the as built
survey and drainage area calculations.
Sincerely,
ANDREW & KUSKE
CONSULTING ENGINEERS, INC.
John S. Tunstall, P. E.
JST/jjpn/tsm
Enclosures
97117-27
/F
I Date I Design I Andrew and Kuske Sheet I
202 N. Fifth Ave. CONSULTING ENGINEERS, INC. Wilmington. N.C. 28401 Of
Check Job For Job No.
�577,-Ej),lWA7-ES ifALCu(-A7 DNS
sl ims )�r-=0&5Gr 97//7# '�F7z6-S
CA
STORM V A I ER
D E C E I V E
FEB 2 7 7998 D
PRO J# D Eyp C)
Date Design Andrew and Kuske Sheet
902 Market St. CONSULTING ENGINEERS. INC. Wilmington, N.C. 28401 I Of
Check Job �-t-CP\JWAT944--, ForALz+iEjMEe--t\PPiTiG1 `t Job No.
�
Ci LCUI AT107 �KIGHTMf�E �tAC� 97//7
At�i>=t�t� pr�pr-rloN � '�IuC-�1�iYt�rr� A�-�isr�p �IVIN�
U��T,( Gon-t�t�Ns
I �'~Tl� �bI'rlY)10N S ��V,✓t-t7 d�(�►•�T I S ��Nnt I NL
7n -V-XpAn10 TO )NCW-c>� At-3-Dtz�l�tln�
AVr2 "i'1t>N L1 V I N& l %1d�1 X •
Ti-1� D�/�>r�IPM�'�`i' 1�91 u. F3� llvCAl�D ON TH �
�/��T �N SI D% bF U r'j+EtZ7Y C-�'�t'Y)!%oN S D�v�FYilsl.rr
Ej WILL, -,p5,�;)Ic-4QSv Tb
r4Nd�f •% W 1u �G
�(pA I.J��i7 •
�I2/J 1 " A 6 r f "Z �
idTP t. O I A CONTYLt .Lk-r G To _ 0.9 1 1 C S
EXfSTrn1� Zi'YtP�rG.�S Arz� Tp i�71.II7= Z.loOAG�•�S
� Al�ti$ln�t✓sz- �4DDITIOIJ -- r7.7�J AL>=•�j
r�r' 6NT»t�l j ST o LA'iIgJ& 34 �%
Tc7'i7�� �r�a f1�A = 4•Z4 A►�AS /1
7-bTAl li�r�-V (ol IS Ia rZ /TL�W (IST., = 4 •%7 /�kf4O—lj
Date Design Andrew and Kuske Sheer
CONSULTING ENGINEERS. INC.
902 Market St. Wilmington, N.C. 2Ee01 Of
Check Job l)TJLMWA-E� for f1� - a ; �cn' Job No.
LAT",DtJ� �!'� /�I/0-- U'/iNC L17�
il= S.c// Nc.
rso r� = 7. 79
e roi,a = �o, VC17, 79xs• 9I) = /3, e e G�
/Z ��lo7AG f 4.(Zox
-)r< /UE,5b TO er ,Q��' 7D
7711, -�
wlw 133E
EX�sr��v� P�v,o
/dP= ��.0 AcGc.�rO/n�G Tp �l(2V�y
No�rria� lfi�vG � 37. S�
�/Y/ = 34• o /�FO/U77�4?iOn/
/3f�S�J/
Trn� V/ous
=Zo3i
ilE ►Jer--r� 'i'p %L�; A03L,� '710 t0666Q No r/ t,
(:✓7,5%�A. NofLM, PcaL
(3&.51�
Zoo-47�312-7// / = Z//84/.7SfT3
12
Date Design Andrew and Kuske Sheer
902 Marker St. CONSULTING ENGINEERS. INC. VJilmingwn. N.C. 2E401 Oq
Check Job For AL., IAG-J tf=2 A��I717]N Job No
�711
<ofJt v1�r 97�
-!Mr-.AG E FrV I iJ EO orZ5- I i-r--r-� , r-
� I� bl1Tt,e(' PI P r CC I JDr4-AAU FbC)L,
G-S DRp'l �Awr�b�NN �C�f2 2r�vhl.7� �r3
i
�7
= Q Q = 21 34 r .7S FT�/172 8LtDsEc,
G� 2cl � , � = a • �
d = 0,187�Fr= 7 2:
l l7:�-F— Z.0!� a rr I E-TF—YL �ZI Fior
li�trL�r Sr,Z1cG�cr� A'x4' CCfiSr Ebx
�� �'pfvjFLc� Fr? 'Rl,Nrau,T-
State of North Carolina
Department of Environment
and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Division of Water Quality
February 20, 1998
Mr. John Tunstall, P.E.
Andrew and Kuske
902 Market Street
Wilmington, NC 28401
ffT0=;W1VA
FqcvF.NR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: ACKNOWLEDGEMENT OF RECEIPT AND
REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SW8 901210 Modification
Liberty Commons
New hanover County
Dear Mr. Tunstall:
The Wilmington Regional Office received a modification to the Stormwater Management Permit
Application for Liberty Commons on December 23, 1997. A preliminary review of that information has
determined that the application is not complete. The following information is needed to continue the
stormwater review:
V 1. Delineate the entire drainage area to the pond.
v1 2. Please change the application to include the entire BUA to the pond, as well as the new
development covered by this modification. Use both columns, one for the new overall BUA
and one for the new development alone. It isn't a modification if only the new stuff is
included in the application.
1� 3. In Sction III of the O & M Plan, you are indicating that sediment removal is required when
the depth of the pond is 2.6'. Please list the actual design depth of the pond, 3.5', in that
blank, and note that the depth can never be less than 3'. That statement in the original O &
M agreement made up by me states that "Sediment removal is required when the depth is
reduced to 75 % of the original design depth, or 3', whichever is greater. Design depth is
measured vertically from the orifice down to the pond's bottom." Yours leaves out
the 3' minimum part.
4. Providd butldin and all sidewalk dimensions.
5. Note the width of the vegetated shelf on the pond section detail.
6. Note the overall pond dimensions on the plans.
127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone 910-395-3900 FAX 910-350-2004
An Equal Opportunity Affirmative Action Employer 50 % recycled/10% post -consumer paper
Mr. Tunstall
February 20, 1998
Stormwater Project No. SW8 901210 Modification
;/ 7. Delineate and label the 38.5 storage contour.
8. The 2.6 acres of existing impervious is too low, compared to what was permitted in the last
revision, which was 146,048 square feet of BUA. A part of that originally permitted amount
was shown as a future Phase lII (34,500 square feet). Does the current submittal use some or
all of that 34,500 reserved for Phase III? Unfortunately, the plans in the file do not show
what Phase III was to include, but no other revisions to the plans have been done since 1990,
so it is probably safe to assume that either the Phase III referred to was not built, or the
current submittal is Phase III. Can you shed any light on this?
9. Based on the previously approved impervious areas to the pond, without consideration for
Phase III, the required surface area for the pond is deficient. This item will be reviewed
again, pending an explanation for item N8 above.
Please note that this request for additional information is in response to a preliminary review. The
requested information should be received by this Office prior to March 20, 1998, or the application will be
returned as incomplete. The return of a project will necessitate resubmittal of all required items, including
the application fee.
If you have any questions concerning this matter please feel free to call me at (910) 395-3900.
RSS/arl:
cc:
Sincerely,
Ms. Linda Lewis
Environmental Engineer
S: \W QS\STORMWAT\ADDINFO\901210. FEB
Linda Lewis
Central Files
Vt
State of North Carolina
Department of Environment
and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Division of Water Quality
MTILON"*or
A �� AMEMBEEN�
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NArURAL RESOURCES
February 20, 1998
Mr. John Tunstall, P.E.
Andrew and Kuske
902 Market Street
Wilmington, NC 28401
Subject: ACKNOWLEDGEMENT OF RECEIPT AND
REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SW8 901210 Modification
Liberty Commons
New hanover County
Dear Mr. Tunstall:
The Wilmington Regional Office received a modification to the Stormwater Management Permit
Application for Liberty Commons on December 23, 1997. A preliminary review of that information has
determined that the application is not complete. The following information is needed to continue the
stormwater review:
1. Delineate the entire drainage area to the pond.
2. Please change the application to include the entire BUA to the pond, as well as the new
development covered by this modification. Use both columns, and for the new overall BUA
and one for the new development alone. It isn't a modification if only the new stuff is
included in the application.
✓ 3. In Sction III of the O & M Plan, you are indicating that sediment removal is required when
the depth of the pond is 2.6'. Please list the actual design depth of the pond, 3.5', in that
blank, and note that the depth can never be less than 3'. That statement in the original O &
M agreement made up by me states that "Sediment removal is required when the depth is
reduced to 75 % of the original design depth, or 3', whichever is greater. Design depth is
, measured vertically from the orifice down to the pond's bottom." Yours leaves out
the 3' minimum part.
2 �
4. Provide(buildina and all sidewalk dimensions.
✓5. Note the width of the vegetated shelf on the pond section detail.
,/ 6. Note the overall pond dimensions on the plans.
127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone 910-395-3900 FAX 910-350-2004
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper
FEB 0 4 1998
11-7
__a==
-Cry ERG S 7 O.N
-GS=GNN
_•.�+ -N7 a=CS-CN CCN=-RC_ - 7 1
I73—�-7 6 ,_,-,1Cornrncns
1LI_- q
157-1 Q
I Date I Design I Andrew and Kuske Sheet
202 N. Fifth Ave. CONSULTING ENGINEERS. INC. wilmingtcn, N.C. 28401 Of
Check Job I For I Job No.
r7G /L"//11L �vVrTleN
�T�T_JYIWA77,6- CALL'"LAT/D/VS
�77Z65
p E C E IN E
DEC 2 31997 D
M
PROJk Z U
Date Design Andrew and Kuske Sheet
(Z�3 47 4T� 902 Market St. CONSULTING ENGINEERS, INC. Wilmington. N.C. 28401 � Of
Check Job-7TCWXcJWATI�C pForA�E+MEZAzPtrCjj 4 Job No.
ULcuLAT)o 7 IGH� {e F�,pCf, 972651 '
'77117
(JFf�T�( GOM�NS
Ue-&'✓T-( L4>rnrnoN S 2w—vc--uod m ewr 1 s :VLAOM I NL
`n EAPA1,30 flmNS TO )NCWVlEF- Ary
6 j 1 u. Fie lbr-'AlF-0 OIL TH t:
VJ�Si YEN S1 of b� u r_1.26a-ry CCmP)or-� S
Ej WIU. �;;Li1Gt fED Tb �I(-' L7� 1S575Z iWsT,6(L
rZVNbYf. 1-0 W fu 6jr_
r�A P'M"gr--0.
T&TAt. -AID 00"Ti24>3uTTINC� To poNCD _ p'.431
:ZrA FS"I otk±� A rLe4 Tp ):�bN r> Z . � o 44G2 F s
-0I�1,1rn�rt-Att'.D'D1TIo,� = 0.�34Lc�
'Gr 6HTrniP2� M� -5"fV-o I t U 1042, =
-roTAi, 4�ga6eN AAA = 4.7-4 AFz*,AS
-fbTAl 10�2�f fOl�li l�r (�C7 W$i�(1 ST.�`='T::o7 Acrej
d/d -b1p�1L�/IU1.lS = 4,�--7 = Sz.4
8.q I
Date Design Andrew and Kuske Sheet
902 Market St. CONSULTING ENGINEERS. INC. Wilmington. N.C. 28401 _ Ot
Check Job �CmWAT� For I'�[�J-= .�,�;�L _, :q711
b No. '
7
GALC�lLATONj t5zk� l"6?12_' , LJII/NG7i�
�/LED�VEG17���' ,eG/Npf=� /ZAY�
�G = /OIVin/.
Qoy2 11,251 G7C5
e�sayrt = /3. 88 Gf S
�io�,� � iLz3cfs
�Ar�uG,o / /Nl�l eco�voFF 0✓0/r- Z�,Vv7rc6- T�F-69�1?1A6)
/Z �¢.lo7AG f 4.246zo)) = v 4s48nc.Gr_� zao�0. �4 �T3
NEo TO G Zmo�o. FTs
PGYVO 52?-iit� 6 = i f/,E Fx� sriNc- Ca-nV,o -0" 77Z/ S1 r�
wiw 616 7a SOIL Tvv6 . V/ /v m vE ���iv75
EXisri vz, Pf-,ry o
72�,/1"= 42_0
N.eInvil J�l�vG - 37, 5 i7cGc.�v'n>G 7-o Sy2vEY
f i /vf = 34. D
J
/3As�v py 90% 7`7
Srn�,�rL✓sous
�-
�Qu/�O �.,-u/�C�N�A��7,��= 387�q�i FT2(�•os�=�32
fz Q �G�tK�ACr Ae�+O ODP_AAL. �! , 20,Sz9 F:7f2
5�� act AP ---a PeOyIr-�-bC4) nloaYXPL ecmv = 7-0,4q(, FrZ'
�juv-t=AC� Ada 6�rza�;d�D �urr�£� SU,er�ac� AI2E� �w2�n �
Pbul.
�38.51)?q . �rJ mot, = 23,I97 r'
2.3
ZoF9GZ12-7 1 = Q�4/.7s-rr3
SToKNG �izd/lD� &�Ors— SCL' �D. / O.e ,/
Date Design,( Andrew and Kuske Sheet
✓ f 1 902 Market St. CONSULTING ENGINEERS. INC. Vvilmington, N.C. 28401
Ot
Check Job For Al,aAr-�Mt�Iz A= Dl71c,�J Job No.
1(orlT7yb 7117
r7 %%1 S
�7TbR1+�E Pt1ovIDEf� �-r':�t'7vi �K-�o>✓ �•��ttl�L�b, Q��-�.
jl� b11T1,�T' PP1✓ 0 fJC)01Apl FbOIL
G-S D!•P7 �7zpwr�6�NN �rz 2r84r,�� �r3
= Q 4 2 841 .75/17Z $G�se�
= (! 12/, 4
Z= O. C)27
8 zip Fr 7 z. r�
U:5F- Z.br "T-)ArtETE-r e-4ZtFrGr
G�rL>=r sr r�crL� 4'c4' Fj;?CAsr Eby-
-AE ��P, �NTou.r
Data for BRIGHTMORE,ALZHEIMER & LIBERTY COMMONS -
TYPE III 24-HOUR RAINFALL= 9.0 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS, INC. ° DEC
97
HydroCAD 4 S23 000479 (c) 1986-1996 Applied Microcomputer Systems
WATERSHED ROUTING __________________________________________---- _______________
O
A
a
OSUBCATCHMENT ❑ REACH Q POND 1 LINK
Data For BRIGHTMORE,ALZHEIMER & LIBERTY COMMONS =;;H
TYPE III 24-HOUR RAINFALL= 9.0 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS, INC. 8 Dec 97
HYdroCAD 4.523 000479 LJ 1986-1996 Applied Microcomputer Svstems
SUBCATCHMENT 1
LIBERTY COMMONS(EXIST),BRIGHTMORE,ALZHEIME
PEAK= 51.82 CFS @ 12.10 HRS, VOLUME= 3.36 AF
ACRES CN
1.34 98 IMPERVIOUS AREA-BRIGHTMORE
.73 98 IMPERVIOUS AREA-ALZHEIMER
2.60 98 EXIST IMPERVIOUS -LIBERTY COMMONS
4.24 50 GREEN AREA
8.91 75
SCS TR-20 METHOD
TYPE III 24-HOUR
RAINFALL= 9.0 IN
SPAN= 10-15 HRS, dt=.1 HRS
Method Comment Tc (min)
DIRECT ENTRY CONTRIB. AREA TO POND 10.0
Dat.: for BRIGHTMORE,ALZHEIMER & LIBERTY COMMONS ? e
TYPE III 24-HOUR RAINFALL= 9.0 IN
Prepareo by ANDREW & KUSKE CONSULTING ENGINEERS, iNC. 8 Dec 97
HVdraCAD 4.523 000479 (c) 1986-1996 Applied Microcomputer Systems
REACH 1
OUTLET PIPE
Qin = 29.39 CFS
@ 12.31
HRS, VOLUME= 2.56 AF
Qout= 25.09 CFS
@ 12.24
HRS, VOLUME= 2.56 AF,
ATTEN= 15%, LAG=
0.0 MIN
DEPTH END
AREA
DISCH
(FT) (SO
-FT)
(CFS)
24" PIPE
STOR-INO+TRANS
METHOD
0.0
-0.0
0.00
PEAK DEPTH=
2.00 FT
.2
.2
.47
n= .013
PEAK VELOCITY=
8.1 FPS
.4
.4
1.98
LENGTH= 60 FT
TRAVEL TIME _
.l MIN
.6
.8
4.43
SLOPE= .01 FT/FT
SPAN= 10-15 HRS, dt=.1 HRS
1.4
2.3
18.94
1.6
2.7
22.11
1.8
3.0
24.11
1.9
3.1
24.33
1.9
3.1
24.11
2.0
3.1
22.62
Data for BRIGHTMORE,ALLHEIMER & LIBERTY COMMONS
TYPE [II 24-HOUR RAINFALL= 9.0 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS, INC. ° Dec 97
HydroCAO 4.523 000479 (c) 1986-1996 Applied Microcomputer Systems
POND 1
EXISTING POND -expanded
Qin = 51.82 CFS @ 12.10 HRS, VOLUME= 3.36 AF
Qout= 29.39 CFS @ 12.31 HRS, VOLUME= 2.56 AF, ATTEN= 43%, LAG= 12.7 MIN
ELEVATION
AREA
INC.STOR
CUM.STOR
(FT)
(SF)
(CF)
(CF)
37.5
20496
0
0
38.0
22230
10682
10682
39.0
24145
23188
33869
41.0
28145
52290
86159
42.0
30220
29183
115342
STOR-IND METHOD
PEAK STORAGE = 65795 CF
PEAK ELEVATION= 40.2 FT
FLOOD ELEVATION= 42.0 FT
START ELEVATION= 37.5 FT
SPAN= 10-15 HRS, dt=.1 HRS
Tdet= 60.5 MIN (2.51 AF)
1 P 37.5' 2- ORIFICE/GRATE
Q=.6 PI r-2 SQR(2g) SQR(H-r)
2 P 38.5' 2.75' x 1' ORIFICE/GRATE
Q=.6 Width 2/3 SQR(2g) (H-1.5 - [H-Height]"1.5)
3 P 39.8' 16' SHARP -CRESTED RECTANGULAR WEIR
Q=C L H-1.5 C=3.27+.4 H/2 L=Length-2(.1 H)
ua_a far BRIGHTMORE,ALZHEIMER & LIBERTY COMMONS race
TYPE III 24-HOUR RAINFALL= 7.0 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS, INC. 8 Dec 9?
HydroCAD 4.523 000479 (c) 1986-1996 Applied Microcomputer Systems
WATERSHED ROUTING
OSUBCATCHMENT REACH POND I LINK
Data for BRIGHTMORE,ALZHEIMER & LIBERTY COMMONS uc:e
TYPE III 24-HOUR RAINFALL= 7.0 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS, INC. 8 Dec :7
HYdroCAD 4.523 000479 (c) 1986-1996 Applied Microcomputer Svstems
SUBCATCHMENT I
LIBERTY COMMONS(EXIST),BRIGHTMORE,ALZHEIME
PEAK= 36.41 CFS @ 12.10 HRS, VOLUME= 2.35 AF
ACRES CN
1.34 98 IMPERVIOUS AREA-BRIGHTMORE
.73 98 IMPERVIOUS AREA-ALZHEIMER
2.60 98 EXIST IMPERVIOUS -LIBERTY COMMONS
4.24 50 GREEN AREA
8.91 75
SCS TR-20 METHOD
TYPE III 24-HOUR
RAINFALL= 7.0 IN
SPAN= 10-15 HRS, dt=.1 HRS
Method Comment Tc (min)
DIRECT ENTRY CONTRIB. AREA TO POND 10.0
Data for BRIGHTMORE,ALZHEIMER 8 LIBERTY COMMONS age
TYPE III 24-HOUR RAINFALL= 7.0 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS, INC. 8 Dec 97
HydroCAD 4.523 000479 (c) 1986-1996 Applied Microcomputer Systems
POND 1
EXISTING POND -expanded
Qin = 36.41 CFS @ 12.10 HRS, VOLUME= 2.35 AF
Qout= 11.69 CFS @ 12.48 HRS, VOLUME= 1.60 AF, ATTEN= 68%, LAG= 22.8 MIN
ELEVATION
AREA
INC.STOR
CUM.STOR
STOR-IND METHOD
(FT)
(SF)
(CF)
(CF)
PEAK
STORAGE =
54476
CF
37.5
20496
0
0
PEAK
ELEVATION=
39.8
FT
38.0
22230
10682
10682
FLOOD
ELEVATION=
42.0
FT
39.0
24145
23188
33869
START
ELEVATION=
37.5
FT
41.0
28145
52290
86159
SPAN=
10-15 HRS,
dt=.l
HRS
42.0
30220
29183
115342
Tdet=
74.5 MIN (1.6 AF)
# ROUTE INVERT OUTLET DEVICES
I P 37.5' 2' ORIFICE/GRATE
Q=.6 PI r-2 SQR(2g) SQR(H-r)
2 P 38.5' 2.75' x 1' ORIFICE/GRATE
Q=.6 Width 2/3 SQR(29) (H-1.5 - [H-Height]-l.5)
3 P 39.8' 16' SHARP -CRESTED RECTANGULAR WEIR
Q=C L H-1.5. C=3.27+.4 H/2 L=Length-2(.1 H)
Data rcr BRIGHTMCRE,ALZHEIMER & LIBERIY COMMONS
TYPE III 24-HOUR RAINFALL= 7.0 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS, INC. ° Dec
HydroCAD 4.523 000479 (c) 1986-1996 Applied Microcomputer Systems
REACH 1 OUTLET PIPE
Qin = 11.69 CFS @ 12.48 HRS, VOLUME= 1.60 AF
Qout= 11.69 CFS @ 12.49 HRS, VOLUME= 1.60 AF, ATTEN= 0%, LAG= .4 MIN
DEPTH END AREA DISCH
(FT)
(SO -FT)
(CFS)
0.0
-0.0
0.00
.2
.2
.33
.4
.4
1.40
.6
.8
3.13
1.4
2.3
13.39
1.6
2.7
15.64
1.8
3.0
17.05
1.9
3.1
17.21
1.9
3.1
17.05
2.0
3.1
16.00
24" PIPE
n= .013
LENGTH= 60 FT
SLOPE= .005 FT/FT
STOR-IND+TRANS METHOD
PEAK DEPTH= 1.27 FT
PEAK VELOCITY= 5.6 FPS
TRAVEL TIME _ .2 MIN
SPAN= 10-15 HRS, dt=.1 HRS
DEC 2 3 1997
John R. Andrew, RE
Andrew & KUSke BY- J.A. Kuske, RE
CONSULTING ENGINEERS, INC. J. Phillip Norris, RE
902 Market St. • Wilmington, North Carolina 28401-4733 • Telephone 910/343-9653 • Fax 910/343-9604
December22, 1997 q UMNATER
NC DENR
Division of Water Quality
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Attn: Ms. Linda Lewis
Re: Liberty Commons -Alzheimer Addition & Brightmore Assisted Living
New Hanover County
A&K Project Nos. 97265/97117
Dear Ms. Lewis:
Enclosed are three sets of plans for the subject project, calculations, one Pond
Maintenance Requirement, the Division of Water Quality stormwater
management permit application and a $385.00 check for the processing fee.
Please review this information for approval and contact us with any questions or
comments you may have. Thank you for your assistance on this project.
Sincerely,
ANDREW & KUSKE
CONSULTING ENGINEERS, INC.
John S. Tunstall, P.E.
JST/tsm
Enclosures
cc: Mr. Ronnie McNeil/S & R Partnership
srzasvA
A&K1f97265/97117
ENGINEERING & FACILITIES
a
APPLICATION FOR PERMIT FOR A
LAND -DISTURBING ACTIVITY
UNDER THE CONDITIONS SET FORTH BY
THE NEW HANOVER COUNTY
SOIL EROSION AND SEDIMENTATION CONTROL ORDINANCE
iz.—y S
File Number
Fee Paid
Date
Applicant: S & R Partnership Applicant's Agent: Andrew & Kuske Consulting Eno. Inc.
Address: 2320 41st Street
Address: 902 Market Street
Wilmington, NC 28403 Wilmington, NC 28403
Telephone Number: 910-350-1980 Telephone Number: 910-343-9653
Total Acres of Land Disturbance: 4.1 AC Purpose of Development: Building Expsnsion
Location and Description of Land Disturbance:
Liberty Commons off 41st Street; 2320 41st Street, Wilmington, NC 28403
STATEMENT OF FINANCIAL RESPONSIBILITY
Land owner(s) of Record Person or firm(s) financially responsible for the
land -disturbing activity. If not a North Carolina
resident you must have a N.C. agent (List Below)
Name: S & R Partnership Name: S & R Partnership
Address: 2320 41st Street Address: 2320 41st Street
Wilmington, NC 28403
Telephone Number: 910-350-1890
Location of deed(s) or instrument(s): County
Wilmington, NC 28403
Telephone Number: 910-350-1890
Book
The above information is true and correct to the best of my knowledge and belief and was provided by me while under oath. (This form
must be signed by the financially responsible person if an individual and by an officer, director, partner, attomey-in-fad, or other person
of authority to execute instruments for the financially responsible person if not an individual.) I agree to provide corrected information
should there be any change in the information provided herein.
Date: Z Z-/%% Name (Type or Print) �0pN9Ua
Title: Ak7^61t Signature:
I. _ gy i LL a h a Notary Public of the County of Ig 1.n d t I^ State of North
Carolina, hereby certify that 2=2, I A Mr -h. I t I appeared personally before me this day and
being duly dworn acknowledged that the above form was executed by him.
hj p�
Witness my hand and �n�ot�arial sea], this aa day ofJ1�� 19 JL
Seal Notary "�� /nr � ,
My commission expires
Data for BRIGHTMORE,ALZHEIMER & LIBERTY COMMONS Page 1
TYPE III 24-HOUR RAINFALL= 7.0 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS, INC. 8 Dec 97
HvdroCAD 4.523.000479 (c) 1986-1996 Applied Microcomputer Systems
WATERSHED ROUTING
OSUBCATCHHENT REACH Q PCND 1 1 LINK
Data for BRIGHTMORE,ALZHEIMER & LIBERTY COMMONS Page 2
TYPE III 24-HOUR RAINFALL= 7.0 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS, INC. 8 Dec 97
HydroCAO 4 523 000479 (c) 1986-1996 Applied Microcomputer Systems
SUBCATCHMENT 1
LIBERTY CORMNS(EXIST),BRIGHTMORE,ALZHEIME
PEAK= 36.41 CFS @ 12.10 HRS, VOLUME= 2.35 AF
ACRES CN
1.34 98 IMPERVIOUS AREA-BRIGHTMORE
.73 98 IMPERVIOUS AREA-ALZHEIMER
2.60 98 EXIST IMPERVIOUS -LIBERTY COMMONS
4.24 50 GREEN AREA
8.91 75
SCS TR-20 METHOD
TYPE III 24-HOUR
RAINFALL= 7.0 IN
SPAN= 10-15 HRS, dt=.1 HRS
Method Comment Tc (min)
DIRECT ENTRY CONTRIB. AREA TO POND 10.0
Data for BRIGHTMORE,ALZHEIMER & LIBERTY COMMONS Page 3
TYPE III 24-HOUR RAINFALL= 7.0 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS, INC. 8 Dec 97
HydroCAO 4 523 000479 (c) 1986-1996 Applied Microcomouter Systems
REACH 1
OUTLET PIPE
Qin = 11.69 CFS @ 12.48 HRS, VOLUME= 1.60 AF
Qout= 11.69 CFS @ 12.49 HRS, VOLUME= 1.60 AF, ATTEN= 0%, LAG= .4 MIN
DEPTH END AREA DISCH
(FT)
(SO -FT)
(CFS)
0.0
-0.0
0.00
.2
.2
.33
.4
.4
1.40
.6
.8
3.13
1.4
2.3
13.39
1.6
2.7
15.64
1.8
3.0
17.05
1.9
3.1
17.21
1.9
3.1
17.05
2.0
3.1
16.00
24" PIPE
n= .013
LENGTH= 60 FT
SLOPE= .005 FT/FT
STOR-IND+TRANS METHOD
PEAK DEPTH= 1.27 FT
PEAK VELOCITY= 5.6 FPS
TRAVEL TIME _ .2 MIN
SPAN= 10-15 HRS, dt=.1 HRS
Data for BRIGHTMORE,ALZHEIMER & LIBERTY COMMONS Page 4
TYPE III 24-HOUR RAINFALL= 7.0 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS, INC. 8 Dec 97
Hy_droCAO 4 523 000479 (c) 1986-1996 Applied Microcomputer Systems
POND 1
EXISTING POND -expanded
Qin = 36.41
CFS @ 12.10 HRS, VOLUME= 2.35 AF
Qout= 11.69
CFS @ 12.48 HRS, VOLUME= 1.60 AF,
ATTEN= 68%, LAG=
22.8 MIN
ELEVATION
AREA INC.STOR CUM.STOR
STOR-IND METHOD
(FT)
(SF) (CF) (CF)
PEAK STORAGE =
54476 CF
37.5
20496 0 0
PEAK ELEVATION=
39.8 FT
38.0
22230 10682 10682
FLOOD ELEVATION=
42.0 FT
39.0
24145 23188 33869
START ELEVATION=
37.5 FT
.41.0
28145 52290 86159
SPAN= 10-15 HRS,
dt=.1 HRS
42.0
30220 29183 115342
Tdet= 74.5 MIN (1.6 AF)
# ROUTE
INVERT OUTLET DEVICES
1 P
37.5' 2- ORIFICE/GRATE
Q=.6 PI r-2 SQR(29) SQR(H-r)
2 P
38.5' 2.75' x 1' ORIFICE/GRATE
Q=.6 Width 2/3 SQR(2g) (H-1.5 -
[H-Height]-l.5)
3 P
39.8' 16' SHARP -CRESTED RECTANGULAR WEIR
Q=C L H-1.5 C=3.27+.4 H/2 L=Length-2(.1 H)
Data for BRIGHTMORE,ALZHEIMER & LIBERTY COMMONS Page 5
TYPE III 24-HOUR RAINFALL= 9.0 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS, INC. S Dec 97
HydroCAD 4 523 000479 (c) 1986-1996 Applied Microcomputer Systems
WATERSHED ROUTING
O
A
j
F]
OSUBCATCHMENT11 REACH QPDND I I LINK
Data for BRIGHTMORE,ALZHEIMER & LIBERTY COMMONS Page 6
TYPE III 24-HOUR RAINFALL= 9.0 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS, INC. 8 Dec 97
HydroCAD 4 523 000479 (c) 1986-1996 Applied Microcomputer Systems
SUBCATCHMENT
I
LIBERTY COMMONS(EXIST),BRIGHTMORE,ALZHEIME
PEAK= 51.82
CFS
@ 12.10 HRS, VOLUME= 3.36 AF
ACRES
CN
SCS TR-20 METHOD
1.34
98
IMPERVIOUS AREA-BRIGHTMORE
TYPE III 24-HOUR
.73
98
IMPERVIOUS AREA-ALZHEIMER
RAINFALL= 9.0 IN
2.60
98
EXIST IMPERVIOUS -LIBERTY COMMONS
SPAN= 10-15 HRS, dt=.1 HRS
4.24
50
GREEN AREA
8.91
75
Method
Comment
Tc (min)
DIRECT ENTRY
CONTRIB. AREA
TO POND 10.0
Data for BRIGHTMORE,ALZHEIMER & LIBERTY COMMONS Page 7
TYPE III 24-HOUR RAINFALL= 9.0 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS, INC. 8 Dec 97
HydroCAD 4.523 000479 (c) 1986-1996 Applied Microcomputer Systems
REACH 1
OUTLET PIPE
Qin = 29.39 CFS @ 12.31 HRS, VOLUME= 2.56 AF
Qout= 25.09 CFS @ 12.24 HRS, VOLUME= 2.56 AF, ATTEN= 15%, LAG= 0.0 MIN
DEPTH END AREA DISCH
(FT)
(SO -FT)
(CFS)
24" PIPE
0.0
-0.0
0.00
.2
.2
.47
n= .013
.4
.4
1.98
LENGTH= 60
.6
.8
4.43
SLOPE= .01
1.4
2.3
18.94
1.6
2.7
22.11
1.8
3.0
24.11
1.9
3.1
24.33
1.9
3.1
24.11
2.0
3.1
22.62
STOR-IND+TRANS METHOD
PEAK DEPTH= 2.00 FT
PEAK VELOCITY= 8.1 FPS
FT TRAVEL TIME _ .1 MIN
FT/FT SPAN= 10-15 HRS, dt=.1 HRS
Data for BRIGHTMORE,ALZHEIMER & LIBERTY COMMONS Page 8
TYPE III 24-HOUR RAINFALL= 9.0 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS, INC. 8 Dec 97
HydroCAD 4 523 000479 (c) 1986-1996 Applied Microcomputer Systems
POND I EXISTING POND -expanded
Qin = 51.82 CFS @ 12.10 HRS, VOLUME= 3.36 AF
Qout= 29.39 CFS @ 12.31 HRS, VOLUME= 2.56 AF,
ELEVATION
AREA
INC.STOR
CUM.STOR
(FT)
(SF)
(CF)
(CF)
37.5
20496
0
0
38.0
22230
10682
10682
39.0
24145
23188
33869
41.0
28145
52290
86159
42.0
30220
29183
115342
# ROUTE INVERT OUTLET DEVICES
ATTEN= 43%, LAG= 12.7 MIN
STOR-IND METHOD
PEAK STORAGE = 65795 CF
PEAK ELEVATION= 40.2 FT
FLOOD ELEVATION= 42.0 FT
START ELEVATION= 37.5 FT
SPAN= 10-15 HRS, dt=.1 HRS
Tdet= 60.5 MIN (2.51 AF)
1 P 37.5' 2" ORIFICE/GRATE
Q=.6 PI r"2 SQR(2g) SQR(H-r)
2 P 38.5' 2.75' x I' ORIFICE/GRATE
Q=.6 Width 2/3 SQR(2g) (H-1.5 - CH-Height]"1.5)
3 P 39.8' 16' SHARP -CRESTED RECTANGULAR HEIR
Q=C L H-1.5 C=3.27+.4 H/2 L=Length-2(.1 H)