SW8901210_HISTORICAL FILE_19960116

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 g01210
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
1°1c��.o a\ 1k
YYYYMMDD
i

'State of North Carolina AN
Department of Environment,
Health and Natural Resources s
Division of Environmental Management
James B. Hunt, Jr., Governor ®FE F1
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
January 16, 1996
Mr. Ronnie McNeill
Brighton Place
2320 Forty-first Street
Wilmington, North Carolina 28403
Subject: Permit No. SW8 901210
Brighton Place
High Density Stormwater Project
New Hanover County
Dear Mr. McNeill:
The Wilmington Regional Office received the stormwater permit name change request for Brighton Place on December
21, 1995. This project was formerly known as Liberty Commons Phase IL Staff review of the plans and specifications
has determined that the project, as built, will comply with the Stormwater Regulations set forth in Title 15A NCAC
2H.1000. We are forwarding Permit No. SW8 901210 dated January 16, 1996, to Brighton Place.
This permit shall be effective from the date of issuance until January 16, 2006, 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 systerp 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
ajudicatory 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
[phone].
Sincerely,
Dave Adkins
Regional Water Quality Supervisor
DA/arl: S:\WQS\STORMWAT\PERMtIl901210.JAN
cc: Dan Latta, P.E.
Alan Golden, New Hanover County Inspections
Linda Lewis
Wilmington Regional Office
Central Files
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer

State Stormwater Management Systems
Permit No. SW8 901210
Project Name:
Permit Number:
Location:
Applicant:
Mailing Address:
DIVISION OF ENVIRONMENTAL MANAGEMENT
PROJECT DATA
Brighton Place
901210
Modification Application Date:
Water Body Receiving Stormwater Runoff:
Classification of Water Body:
If Class SA, chloride sampling results:
Pond Depth:
Permanent Pool Elevation:
Total Impervious Surfaces Allowed:
Offsite Area entering Pond:
Green Area entering Pond:
Required Surface Area:
Provided Surface Area:
Required Storage Volume:
Provided Storage Volume:
Temporary Storage Elevation:
Controlling Orifice:
New Hanover County
Mr. Ronnie McNeill
Brighton Place
2320 Forty-first Street
Wilmington, North Carolina 28403
December 21, 1995
UT Hewlett's Creek
EGA
N/A
3.5 feet
37.5 MSL
146,048 square feet
N/A square feet
0 square feet
10,921 square feet
13,866 square feet
11,839 cubic feet
22,829 cubic feet
39 MSL
1.5 pipe
3

State Stormwater Management Systems
Permit No. SW8 901210
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
DIVISION OF ENVIRONMENTAL MANAGEMENT
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended,
and other applicable Laws, Rules, and Regulations
Brighton Place
Brighton Place
New Hanover County
FOR THE
construction, operation and maintenance of stormwater management systems in compliance with the provisions
of 15A NCAC 2H .1000 (hereafter referred to as the "stomnvater 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 Environmental Management and considered a part of this permit.
This permit shall be effective from the date of issuance until January 16, 2006 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.
3. Approved plans and specifications for this project are incorporated by reference and are enforceable
parts of the permit.
2

State Stormwater Management Systems
Permit No. Sw8 901210
4. No homeowner/lot owner/developer shall be allowed to fill in, alter, or pipe any vegetative practices
(such as swales) shown on the approved plans as part of the stormwater management system without
submitting a revision to the permit and receiving approval from the Division.
5. The following items will require a modification to the permit:
a. Any revision to the approved plans, regardless of size.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area.
e. Further subdivision of the project area.
In addition, the Director may determine that other revisions to the project should require a modification
to the permit.
6. The Director may notify the permittee when the permitted site does not meet one or more of the
minimum requirements of the permit. Within the time frame specified in the notice, the permittee shall
submit a written time schedule to the Director for modifying the site to meet minimum requirements.
The permittee shall provide copies of revised plans and certification in writing to the Director that the
changes have been made.
II. SCHEDULE OF COMPLIANCE
1. The permittee will comply with the following schedule for construction and maintenance of the
stormwater management system:
a. The stormwater management system shall be constructed in it's entirety, vegetated and
operational for it's intended use prior to the construction of any built -upon surfaces except roads.
b. During construction, erosion shall be kept to a minimum and any eroded areas of the system will
be repaired immediately.
2. The facilities must be properly maintained and operated at all times. The approved Operation and
Maintenance Plan must be followed in it's entirety and maintenance must occur at the scheduled
intervals.
3. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted
stormwater system functions at optimum efficiency including, but not limited to:
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.
4

State Stormwater Management Systems
Permit No. SW8 901210
4. Records of maintenance activities must be kept and made available upon request to authorized personnel
of DEM. The records will indicate the date, activity, name of person performing the work and what
actions were taken.
This permit shall become voidable unless the facilities are constructed in accordance with the conditions
of this permit, the approved plans and specifications, and other supporting data.
6. A certification from the designercertifying that the system has been installed in accordance with the
original Certification of Compliance, the approved plans and specifications, and other supporting
documentation has been received.
8. 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.
III. GENERAL CONDPPIONS
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
Environmental Management 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 Environmental Management, in accordance with North Carolina
General Statute 143-215.6(a) to 143-215.6(c).
3. The issuance of this permit does not preclude the Permittee from complying with any and all statutes,
rules, regulations, or ordinances which may be imposed by other government agencies (local, state, and
federal) which have jurisdiction.
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.
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 January, 1995.
MANAGEMENT
A. Preston Howard, Jr., P.E., Director
Division of Environmental Management
By Authority of the Environmental Management Commission
Permit Number SW8 901210

State of North Carolina.
Department of Environment,
Health and Natural Resources
` Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
WATER QUALITY SECTION
PERMIT NAME/OWNERSHH' CHANGE FORM
EM91630211M wall 0.41300► �'u: fa►
EBB \/
1. Permitholder'snameTiharty Commons Assisted Livinq Facility=Phase. II
2. Permit's signing official's name and title: Ronnie Mc Ne i 11
(Person legally responsible for permit)
(Title)
3. Mailing address: -23 0 Forty F' 21 City: Wilmington
State: N.C. Zip Code: 284.03 Phone:( 9.10) 392-6899
IL NEW OWNER/NAME INFORMATION
1. This request for a name change is a insult of:
,,_a. Change in ownership of property/company
fib. Name change only
_c. Other (please explain)•
2. New owner's name (name to be put on permit), R r i g h t n o I a e
3. New ownei s or signing official's name and title: Ronnie McNeill
(Person legally responsible for permit)
(Title)
4. Mailingaddress' 2320 Forty First `(Nty. Wilmington
State: N.C. Zip Code: 28403 Phone: ( 910) 392-6899

PERMIT NAME/OWNERSHH' CHANGE FORM
THIS APPLICATION PACKAGE WILL NOT BE ACCEPTED BY THE DIVISION OF
ENVIRONMENTAL MANAGEMENT UNLESS ALL OF THE APPLICABLE ITEMS
LISTED BELOW ARE INCLUDED WITH THE SUBMITTAL.
REQUIRED ITEMS:
1. This completed application
2. Processing fee of $100.00 (Checks to be made payable to DEHNR)
3. If an ownership change, legal documentation of the transfer of ownership (such as a contract, deed,
articles of incorporation)
CERTIFICATION MUST BE COMPLETED AND SIGNED BY BOTH THE CURRENT
PERMIT HOLDER AND THE NEW APPLICANT IN THE CASE OF CHANGE OF
OWNERSHIP. FOR NAME CHANGE ONLY, COMPLETE AND SIGN THE
APPLICANT'S CERTIFICATION.
Curren Permittee's Certification:
I.- �'- "N"4Lb d . i attest that this application for name/ownership change has been
reviewed and is accurate and complete to the best of my knowledge. I understand that if all required parts
of this application are not completed and that if all required supporting information and attachments are not
included, this appli on pack iaige will
be returned as incomplete.
Signature:C/i:` "/��l Date: �S
Applicaan/nnt's Certification:
attest that this application for a name/ownership change has been
reviewed and is accurate and complete to the best of my knowledge. I understand that if all required parts
of this application are not completed and that if all required supporting information and attachments are not
included, this applica'o ac g/efwwi be returned as incomplete.
Signature- / Date:
,
THE COMPLETED APPLICATION PACKAGE, INCLUDING ALL SUPPORTING INFORMATION
AND MATERIALS, SHOULD BE SENT TO THE FOLLOWING ADDRESS:
North Carolina Division of Environmental Management
Water Quality Section
Permits and Engineering Unit
P.O. Box 29535
Raleigh, North Carolina 27626-0535
Telephone: [phone]
Fax: [phone]

f TWAERT&BIOlIT,
engineering & planning consultants
December 16, 1991
Mr. Frank I. Ballard, AIA
Ballard McKim & Sawyer Architects
P.O. Box 3667
Wilmington, NC 28402
RE: Liberty Commons Rest Home
TBI No. 5103-9001
Dear Frank:
RECENE®
17 1991
Wilmington Regional Office.
ncp4
Enclosed is the Engineer's Certification for the stormwater management system serving the
above referenced project. This certification is required as a condition of the Stormwater
CP`ermlfNo. 901210 issued January 30, 1991 by the Division of Environmental Management.
By copy of this letter we are sending the certification to DEM. Please call if you have any
questions or need additional information regarding the certification.
We have enjoyed working with you on this project. Please call when we can be of service
to you on future projects requiring engineering and/or surveying.
Sincerely, 0�
R. Daniel Latta, P.E., RLS
RDL/slp
Enclosure
�cl Dave Adkins, DEM
The Cotton Exchange • 321 N. Front Street = Wilmington, North Carolina 28401 • 919 763-5350

TALBEfRT& 9)W1'T, /NC.
engineering & planning consultants
June 10, 1991
Wll;�tl�;ftt�n ftt.�taaal Gale .0
Ms. Alexis Finn
Division of Environmental Management
Wilmington Regional Office
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
RE: Liberty Commons Rest Home Phase II
Storm Water Project 901210
TBI No. 5103-9001
Dear Alexis:
We have received your letter dated May 5 regarding the certificate of completion of the
Storm Water Management Project of the above referenced project. This project is still
under construction with an anticipated date of completion of October 1, 1991.
Upon completion of the project, we will provide the certification as required by your
ordinance. Please call if you have any questions or need additional information.
Sincerely,
Za '_
R. Daniel Latta, P.E., RLS
RDL/slp
c: Frank Ballard, Ballard, McKim & Sawyer Architects
The Cotton Exchange • 321 N. Front Street • Wilmington, North Carolina 28401 • 919 763-5350

I
®HENRY VON OESEN AND ASSOCIATES
CONSULTING ENGINEERS Telephone [phone]
A N D PLANNERS Fax [phone]
805 NORTH THIRD STREET P.O. DRAWER 2087 WILMINGTON, NORTH CAROLINA 28402
May 3, 1991
Div. of Environmental Management
N. C. Dept. of Environment,
Health and Natural Resources
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Attn: Mr. A. Preston Howard, Jr., P. E.
Re: Stormwater System No. 880608
McNeill Rest Home
New Hanover County
Dear Sir:
Please find attached the requested certification of comple-
tion for the above project. We would like to point out that this
stormwater system is under modification by others under a new per-
mit. This should complete this office's requirements as far as
this stormwater system is concerned.
Sincerely yours,
HENRY VON OESEN AND ASSOCIATES, INC.
Carl H. Farmer, Jr., P. E.
CHF/GGB
Enc.
S
[` ECEIV0
MAY 6 1991
Wilmington VC910na1 0fiee

State of North Carolina
Department of Environment, Health, and Natural Resources
Wilmington Regional Office
James G. INiarnn, Governor B013 Jamieson
William W Cobcy, Jr., Secretary May 1, 1991 Regional Ntinager
DIVISION OF ENVIRONMENTAL MANAGEMENT
Mr. Carl Farmer, Jr., P.E.
Henry Von Oeson and Associates
Post Office Drawer 2087
Wilmington, North Carolina 28401
Subject: CERTIFICATE OF COMPLETION
Engineered Stormwater System
Stormwater Project No. 880608
McNeill Rest Home
New Hanover County
Dear Mr. Farmer:
On November 8, 1990, the Division of Environmental
Management requested that a Certification of Compliance with
Stormwater Regulations, or written notification which included
the present phase of construction and the expected date of
construction completion for McNeill Rest Home be provided by
December 8, 1990 (copy of letter attached). Stormwater
Regulation 15A NCAC 2H. 1003 (k) (3) requires that:
Upon completion of construction, a registered
professional appropriate for the type of Stormwater system
designed must certify that the system was inspected during
construction and c•;as constructed in substantial conformity
with plans and specifications reviewed by the division and
complies with the requirements of this Rule.
As of this date, our records indicate that the requested
information has not been received. Operation of the stormwater
system prior to submission of the required certification is in
violation of 15A NCAC 2H.1003(1) and is subject to enforcement
action pursuant to NCGS 143-215.6. If construction of the
subject project has not been completed please provide written
notification to this office by May 17, 1991. Please include in
your notification the present status of construction and the
expected date of construction completion. If the facility has
been constructed and placed in operation, please submit the
required certification (attached) immediately.
Continued
7225 Wigh¢Ale Avaiue, W,[.nin: on. N.C. 28403 36tVS • idcphone 9192564161 • fix 919-2568M

Mr. Farmer
May 1, 1991
Page Two
--------------
If you have any questions concerning this matter, please
call Alexis Finn at [phone].
Sincerely,
UnSmel Signed By
4 PREOTON HOWARD, A
A. Preston Howard, Jr., P.E.
Regional Supervisor
APH/aif: 880608.FOL
cc: Alexis Finn
Wilmington Regional Office
Central Files

74MERTS BR/GHT, A
engineering & planning consnftantr
January 23, 1991
Ms. Alexis Finn
Division of Environmental Management
7225 Wrightsville Avenue
Wilmington, North Carolina 28403-3696
RE: Liberty Commons Rest Home
Stormwater Project No. 901210
TBI No. 5103-9001
Dear Alexis:
We are enclosing two prints of sheet C-2, revised to show a cross section of the vegetative
swale and additional seeding specifications for the swale vegetation. Other comments in
your January 9 letter are addressed below, numbered to correspond with your letter.
1. Inverts of all catch basins and other drainage structures are shown in the Storm
Drainage Structures Table on Sheet C-2.
2. Vegetative filter details shown on Sheet C-2 as discussed above.
3. Page 2 of the Operation and Maintenance Manual has been revised to include the
language on rip -rap inspection and repair. Two copies of this page are attached.
Please replace the original page 2 of our submittal with these pages. The Owner's
address, phone number and signature is on our original submittal of the O & M Plan.
4. Enclosed is a letter of acknowledgement of the December 12, 1990 Notice of
Violation signed by the Owners regarding repairs to be made to correct the violation
conditions.
A letter of authorization from the owner for Talbert & Bright, Inc. to submit the Stormwater
Permit Application is also enclosed as required by your January 9 letter.
We trust this information is sufficient to complete your review and approval of the
stormwater plan for the project. If you have any questions, please call.
Sincerely, , o
R. Daniel Latta, P.E., R.L.S.
Enclosures
c: Frank Ballard, AIA
AN 2 W991
DEM
P"i q!_`iocz o _,
The Cotton Exchange • 321 N. Front Street • Wilmington, North Carolina 28401 • 919 763-5350

January 17, 1991
Ms. Alexis Finn
Division of Environmental Management
7225 Wrightsville Avenue
Wilmington, North Carolina 28403-3696
RE: Liberty Commons Rest Home
Stormwater Project No. 901210
Dear Ms. Finn:
This letter is to serve as authorization for R. Daniel Latta, P.E., of Talbert & Bright, Inc.;
our consulting engineer, to submit, on our behalf, the plans, specifications, calculations and
supporting data for your review and approval of the drainage and stormwater management
system to serve the Liberty Commons Rest Home project.
This authorization is limited to design, submittal and construction observation of the project.
Ownership, operation and maintenance of the facility will remain with S & R Partnership
as indicated on the Operation and Maintenance Manual for the Stormwater Retention
Facility.
Sincerely,
S & Partnership
7
.li_Mer..
Partner Ro1v40 �/✓EIt- C
Date
North Carolina
RE C E o W E V
,)Ate 23 r.;
DEM
PROD �_9oizfo^
i BENDA S. GARRISON
NOTARY PUBLIC
NEW HANOVER COUNTY, N. C.
RCounty My Commission Expires July 31. 1993
1, b12Sc\o�c` C� �a�1�aSa Notary Public for said County and State, do hereby
certify that 9 • me personally appeared before me this day, and
acknowledge the execution of the foregoing instrument.
Witness my hand and official seal, this the \ day oy, 19�.
(Official Sea]) j�_M�ps � - �
Notary Public
My commission expiresO� 19

State of North Carolina
Department of Environment, Health, and Natural Resources
Wilmington Regional Office
James G. Martin, Governor Bob Jamieson
William W. Cobey, Jr., Secretary January 9, 1991 Regional Manager
DIVISION OF ENVIRONMENTAL MANAGEMENT
Mr. R. Daniel Latta, P.E., R.L.S.
Talbert & Bright, Inc.
321 North Front Street
Wilmington, North Carolina 28401
Subject: Additional Information
Stormwater Project No. 901210
Liberty Commons Rest Home
New Hanover County
Dear Mr. Latta:
The individual who signs the request for a Stormwater
Certification is often the owner of the property or the developer
of a property. In cases where the request is not submitted by the
owner or developer, the person signing the submittal should be
duly authorized to do so by the owner or developer. The
authorization should be in the form of a signed and notarized
statement in original form granting the agent signature
authority for obtaining the Certification. A request submitted by
a corporation must be signed by a principal executive officer of
at least the level of vice president, or his duly authorized
representative, if such representative is responsible for the
overall operation of the facility described in the submittal. In
the case of a partnership or a sole proprietorship, the request
must be signed by the general partner or the proprietor,
respectively. In the case of a municipal, State, Federal, or
other public facility, the request must be signed by either a
principal executive officer, ranking elected official, or other
duly authorized employee.
Please provide the Wilmington Regional Office the above
signature requirement for the subject project. In addition, the
following information should be included for the submittal to be
evaluated:
Continued
7225 Wrighesville Avenue, Wilmin&non, NC. 2W3-3696 0 Telephone [phone] Fax [phone]M

f .,
Mr. Latta
January 9, 1991
Page Two
--. Invert elevations of catch basins
✓2. Detail of vegetative filter, including side slopes,
grade, and seeding specifications for water resilient
vegetation.
✓ 3. . Please include the following in the'Operation and
Maintenance Plan:
✓ Rip rap may require repositioning as a result of
displacement by heavy flows.
Owners signature, phone number, address, and date
signed.
4. A written statement from the owner acknowledging the
conditions listed in the Notice of Violation sent to
Mr. Carl Farmer, Jr., P.E. of Henry Von Oesen and
Associates on December 12, 1990. This statement must
acknowledge that these conditions will be repaired to
the satisfaction of the Division of Environmental
Management.by a specific date.
This information should be received by this office no later
than February 9, 1991, or your project will be returned as
incomplete.
Please be reminded that construction of the subject project
may not commence prior to approval of the Stormwater Management
Plan. We will make every attempt to assist you. If you have any
questions, please call me at telephone number [phone].
AIF: 901210.JAN
cc: (Z) Alexis Finns
Bill Mills
Central Files
Sincerelydr
,
Y e Adkins
Water quality Regional Supervisor

Project q: 901210 File Name: DET210
Revlewer:Alexis
Finn
Project Name: LIBERTY COMMONS REST HOME; PHASE I 6 II M-
Date:
1/8/91
******************DETENTION POND ANALYSIb******n*****************
Total Drainage Area, DA:
DA=
348915.6
ft^2
qq
(DA (acre)] / [43560 ft-2/acre]=
DA=
8.01
Acres
IMPERVIOUS SURFACE AREA CALCULATIONS:
Structure Surface Area, A Runoff Coef., C
sf
Buildings: 66540 1 Adjusted Surface
Area = A * C =
66540
ft^2
qq
Parking/sidewalks/etreets: 79508 0.95 Adjusted Surface
Area = A * C =
75532.6
ft^2
qq
Outparcels: 0 0.9 Adjusted Surface
Area = A * C =
0
ft-2
qq
Green Areas: 0 0.2 Adjusted Surface
Area = A * C =
0
ft-2
qq
TOTAL:
142072.6
ft-2
qq
Percent Impervious, %I: note: SA=(BUILDING + PARKING + OUTPARCEL)=
146048 of
[SA/DA)*100=
[ 146048 / 348915.6 1*100-
%I=
41.8688
Note: If 9r < 30% check Density Option.
If 91 > 30%, require engineered system to minimize non -point stream degradation.
POND SIZING:
Minimum Required Storage Volume, VOLreq: note: SA has been multiplied by runoff coefficients
(SA (ft-2) * (1 inch of runoff) * (1 ft/12 inch)]=
[ 142072.6 ft-2 • 1 inch * 0.083333 ft/inch]= VOLreq= 11839.38 ft-3
qq
POND SIZING:
------------
Bottom Elevation, ELb: ELb = 34.0 ft qq
Permanent Pool Elevation, ELpp:
ELpp=
37.5
ft
qq
Area of Permanent Pool, App:
App =
13866
ft-2
qq
Storage Pond Elevation, ESP:
ELsp=
39.0
It
qq
Area of Storage Pond, Asp:
Asp =
16573
ft"2
qp
Runoff Storage Depth, d:
(via project engineer's design: d = Slap - ELpp)
d=
1.5
ft
qq
Storage Volume Provided, VOLpro: Side Slope:
3:1 ####
Volume 1, V1= App * d 13866 ft-2 * 1.5
ft =
V1=
20799
ft-3
Volume 2, V2= (Asp - App) * d * 0.5 =
V2=
2030.25
ft-3
VOLpro = V1 + V2 = 20799 ft-3 + 2030.25
ft-3
VOLpro=
22829.25
ft-3
Notes ybOLreq <"VOLpro, excess storage Se eJSi labl e,-therefoze Pond-volume-ie
Acceptflble.
<--------
8 E%ce99 Storage =(Votieq / VOLpzo)-*-100— _�%
Exoe9s�St6rage
= _ ­
' .14%<-==-----

DETENTION POND ANALYSIS CONTINUED: PAGE TWO
PERMENANT POOL:
Perm. Pool at Normal Level= 37.5 ft
Bottom of Pond = 34 ft
Depth Provided,,—D = 3.5 ft <-- Okay, depth > OR = 3 ft.
SA/DA CALCULATION:
By Chart #3; @ 85% TSS:
Depth, D = 3.5 ft
8 Impervious = 41.86%
DA = 8.01 Acres
SA/DA % = 3.1 Nggq
Area of Permanent Pool Required = (SA/DA 8) * DA
Area of Permanent Pool Required - 3.1 * 8.01 Acres
Area of Permanent Pool Required 0.24831 Acres
Area of Permanent Pool Required - 10816.38 ft-2
Area_of_PERMANENT_ POOL-Required=10816.38 of < Provided area of 13866_sf <_-ONAY:_ sufficient_ storage_ area
ORIFICE / OUTLET SIZING:
VOLpro = 22829.25
Orifice outflow, 2 Day Drawdown = Volpro/[(2 day) * (86400 sec/day)]
Orifice outflow, 2 Day Drawdown = 22829.25 ft-3 / 172800 sec =
Q2= 0.132113 cfs
Orifice
C.S. Area, A:
A= Q/[Cd((2gh)-0.5))]
A-
0.132113 / [0.6*((2*32.2*1.5)^0.5))1=
A2=
0.022403
ft-2
A2=
3.226046
inch-2
Pipe
diameter, d:
d2=
2.026704
inch
Note:
Head, h = maximum pond level - permanent
pond level
1.5 ft
Coeficient of Discharge, Cd =
0.6
Orifice outflow,
5 Day Drawdown =
Volpro/[(5 day) * (86400 sec/day)]
Orifice outflow,
5 Day Drawdown =
22829.25 ft-3 / 432000 sec =
Q5=
0.052845
cfs
Orifice C.S. Area, A:
A= Q/[Cd((2gh)-0.5))]
A= 0.052645 / [0.6*((2*32.2*1.5)-0.5))1= A5= 0.008961 ft^2
A5= 1.290418 inch-2
Pipe diameter, d: d5= _ 1.281800 inch
,CHECK: d5 < dprovided < d2 1.3 < 1.5 < 2.0 <---OAAY...;. Orifice is adequately sized.
Project N: 901210 File Name: DET210 Reviewer:Alexis Finn
Project Name: LIBERTY COMMONS REST SOME; PRASE I S II Date: 1/8/91

- TALBERT� BR/GHT, /NC.
engineering S. plmurin,; con.cu[tants
December 14, 1990
Mr. A. Preston Howard, P.E.
Division of Environmental Management
7225 Wrightsville Avenue
Wilmington, NC 28403-3696
RE: Notice of Violation
Liberty Commons Rest Home
TBI No. 5103-9001
Dear Mr. Howard:
We have received your December 12, 1990 letter regarding the violations of the stormwater permit at the
project.
The Owner of the project is currently completing design of an 18,400 square foot addition to the existing
building. This expansion project also includes additional access road and parking area, thus increasing the
total impervious cover on the site and necessitating a revision of the stormwater plan, including an expansion
of the retention pond.
The violation conditions listed in the letter are primarily maintenance items. We request that the Owner be
allowed to include these corrective items in the work on the Phase II construction. The Contractor will then
have the necessary equipment and materials on -site to make the improvements, including any re -grading and
repair of ditch slopes, seeding and mulching, and replacement of rip rap. The existing vegetative filter Swale
will be abandoned under the proposed work, being replaced by a new vegetative filter located on the property.
This relocation is required by the City of Wilmington's plan to construct a new road adjacent to the property,
across the existing vegetative Swale.
The Owner's plans are to receive bids on the proposed addition in early January, awarding contracts and
beginning construction by the middle of February. We have submitted the stormwater management plan to
your office as well as an erosion and sedimentation control plan to New Hanover County Engineering
Department.
We are willing to include the corrective measures outlined in your letter as part of the erosion and
sedimentation control work items of the project, making it the first work to be done in the contract.
We trust you will concur with this plan of action to correct
approve the stormwater plan for the Phase Il construction.
information to complete your review of this matter, please call.
the situation if you desire.
Thank you for your time and consideration.
Sincerely, J29—
R. Daniel Latta, P.E., R.L.S
c: Frank Ballard
Alexis Finn op
the deficiencies of the existing site and will
If you have any questions or need additional
We will be happy to meet with you to discuss
9
RECEIVED
liLl 17 101 1Pj
lililrn;ngton P.,ionai office
n: A+
U
DEC t ,, 1990
D E M
The Cotton Exchange • 321 N. Front Street • Wilmington. North Caroline! 28401 • 919 763-53 50

SECTION 02270 EROSION & SEDIMENTATION CONTROL
PART 1 - GENERAL
Drawings and general provisions
and Supplementary Conditions
Sections, apply to this section.
of Contract, including General
and Division 1 Specification
The General Contractor shall, upon suspension or completion of
land -disturbing activities, provide protective covering for
disturbed areas. Permanent vegetation shall be established at
the earliest practicable time. Temporary and permanent erosion
control measures shall be coordinated to assure effective, and
continuous erosion and siltation control throughout the
construction and post construction period.
SUMMARY
This Section includes the following' The General Contractor
shall prevent the erosion of soil and the sedimentation of
1 streams, lakes, reservoirs, other water impoundments, ground
surfaces, streets, existing storm drainage systems, or other
property.
with applicable State andmLocal lon control measures shall
regulations.
PROJECT CONDITIONS
L Traffic= Conduct erosion and sedimentation control operations to
ensure minimum interference with roads, streets, walks, and other
adjacent occupied or used facilities. Do not close or obstruct
streets, walks or other occupied or used facilities without
® 'permission from authorities having jurisdiction.
REGULATORY REQUIREMENTS
The Contractor shall be responsible for prevention of damage to
properties within the construction limits and outside the
construction limits from erosion and siltation due to
construction of the project. The Contractor shall assume all
responsibilities to the affected property owners for correction
of damages which may occur. Erosion and sedimentation control
measures shall be performed by the Contractor, conforming to the
requirements of 'and in- accordance with the drawings approved by
the North Carolina Dept. of Environmental Sealth "and Natural
Resources and as per the erosion control portion of the Contract
Documents. The Contractor shall not allow mud and debris to
accumulate in the streets. Should the CoS11TEpµm� EwDD
r from
� UJ AA u1 ter
U�(U DEC 1 y
9%
N?ROL 2270 1
EROSION & SEDIMMATION U I
D E M

trenches during construction, appropriate siltation preventative
measures shall be taken prior to discharge of pumped water into
any storm drain or stream.
mulching Cloth: shall be open mesh, biodegradable.
Fertilizer: 10-10-10
Lime: dolomitic agricultural ground limestone containing not
less than 10 percent magnesium oxide.
Phosphate: 20% superphosphate.
Seed: Refer to seeding schedule..
Silt Fence: shall consist of non -biodegradable filter fabric
(Trevira, Mirafi, etc.) wired to galvanized wire mesh fencing
and supported by wood or metal posts.
Rip -rap: NCDOT Class 1.
Erosion Control Stone: NCDOT Class A.
PART 3 - EXECUTION
CLEARING
Clearing and grubbing shall be scheduled and performed in such a
manner that subsequent grading operation 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 within 30 working days after
completion of active construction.
STABILIZING
The angle for graded slopes and fills shall be no greater than
the angle which can be retained by vegetative cover or other
adequate erosion control devices or structures. All disturbed
areas not to be paved and left exposed will, within 30 working
days of completion of any phase of grading, be planted or
otherwise provided with either temporary or permanent ground
cover, devices, or structures sufficient to restrain erosion.
i. EROSION g SXDIHXNTATION CONTROL 02270 , 2

REGULATORY REQUIREMENTS
Whenever land disturbing activity is undertaken on a tract, a
ground cover sufficient to restrain erosion must be planted or
otherwise provided within 30 Working days on that portion of the
tract upon which further active construction is not being
undertaken.
If any earthwork is to be suspended for any reason whatsoever for
longer than 30 calender days, the areas involved shall be seeded
with vegetative cover or otherwise protected against excessive
erosion during the suspension period. suspension of work in any
area of operation does not relieve the Contractor fo the
responsibility for the control of erosion in that area.
CONSTRUCTION PHASE PRACTICES
The contractor shall not dump soil or sediment into any stream
bed or watercourse. Backfill for stream crossings, if any, shall
be placed dry and compacted to minimize siltation of the
watercourse.
1 The Contractor shall maintain an undisturbed vegetative buffer'
J where possible between a natural watercourse - and trenching and
grading operations.
The Contractor shall avoid equipment crossings of streams,
creeks, and ditches where possible.
SEDIMENT CONTROL FEATURES
All devices (silt fences, sand fences, and retention area, etc.).
for sediment control shall be constructed at the locations
indicated prior to beginning excavation on the site. All devices
shall be properly maintained in place until a structure or paving
makes the device unnecessary or directed to permanently remove
the device.
DESIGN APPLICATIONS
Mulch shall be used for temporary stabilization of areas subject
to excessive -erosion, and for protection of seed beds after
Planting where required.
Jute, mesh, etc. should be installed as per manufacturer's
instructions.
Silt fences shall be used at the base of slopes and in
drainage swales to restrict movement of sediment from the
site. Straw bales may be required for reinforcement.
Rip -rap shall be used at the proposed outfall pipes as
indicated on plans.
02270 , 3
$ROSION A SSDIMRNTA?ION CONTROL

Establish vegetative cover on all unpaved areas disturbed by
the work.
Prewar tion of Seedbed• Areas to be seeded shall be
scarified a depth of 6' until a firm, well pulverized,
uniform seedbed is prepared. Lime phosphorous, and
fertilizer shall be applied during the scarification
process in accordance with the seeding schedule.
Seeding- Disturbed areas along roads and ditches shall be
permanently seeded.
1 Mulch all areas immediately after seeding. Mulch shall be
applied and anchored as specified above
TEMPORARY SEEDING:
Temporary Reeding shall be placed on all disturbed areas to
provide temporary cover until installation of paving or final
q seeding and to stabilize any areas that will not be brought to
Jfinal grade for a period of'more than 30 working days.
Seedbed preparation shall be in accordance with Landscaping Specifications.
Lime shall meet the requirements of Landscaping Specifications and shall be
applied at a rate of 2000 pounds per acre. Fertilizer shall meet the re—
quirements of Landscaping Specifications and shall be applied at the rate of
750 pounds per acre. Mulch all areas that receive temporary seeding in accordance
with the Landscaping Specifications.
LSeeding mixtures shall be applied as follows:
For areas seeded between December 1 and April 15:
! Rye (grain) 120 lhs/acre
I Kobe lespedeza 50 lbs/acre
For areas seeded between April 15 and August 15:
1 German millet 40 lbs/acre
y For areas seeded between August 15 and November 31:
IL Rye (grain) 120 lbs/acre -
The Contractor shall be responsible for protection of seeded
areas. Damaged areas shall be reseeded, fertilized and mulched
immediately following any erosion or other damage to the seeded
areas.
Areas receiving temporary seeding between August 15 and December
31 (120 lbs/acre of rye (grain)) shall be top dressed with 50
lbs/acre of nitrogen in March. If these areas of temporary
seeding are to remain beyond June 15, over seed all areas with 50
lbs/acre of Robe lespedeza in late February or early March.
— 02270-4
EROSION & SEDIMENTATION CONTROL

MAINTENANCE
The Contractor shall be responsible for maintaining all temporary
and permanent erosion control measures in functioning order.
Temporary structures shall be maintained until such time as
vegetation is firmly established and grassed areas shall be
maintained until completion of the project. Areas which fail to
show a suitable stand of brass or which are damaged by erosion
shall be immediately repaired.
REMOVAL OF SEDIMENT CONTROL DEVICES
Near completion of the project, when directed by the Owner's
agent, the Contractor shall dismantle and remove the temporary
devices used for sediment control •during construction. All
erosion control devices in seeded areas shall be left in place
until the grass is established. Seed areas around devices and
mulch after removing or filling temporary control devices.
Remo.._, from Owner's Property: Remove waste materials and
unsuitable or excess topsoil from Owner's property.
END OF SECTION 02270.
02270 5
EROSION A SEDIMENTATION CONTROL

TALBERT& BR/GHT, /NC.
cilgineerin, & planning c'onsidrnms
December 13, 1990
Ms. Alexis Finn
Division of Environmental Management
7225 Wrightsville Avenue
Wilmington, NC 28403-3696
RE: Liberty Commons Nursing Home
Wilmington, North Carolina
TBI No. 5103-9001
Dear Alexis:
Enclosed for your review and approval are two copies of the stormwater management plan
for the addition to the Liberty Commons Nursing Home on 41st Street in Wilmington. The
original project was previously permitted under Stormwater Permit No. 880608 dated June
24, 1988 as the McNeill Rest Home.
The proposed project will expand and enlarge the existing detention pond to serve the
existing facility, the proposed addition and a future (Phase III) addition of equal size. A new
vegetative swale at the pond outlet will be constructed on the Liberty Commons property.
An erosion and sedimentation control plan has been submitted to the New Hanover County
Engineering Department. Stormwater evaluations have been submitted to the City of
Wilmington for approval also.
Please call if you have any questions or need additional information to complete your review.
Sincerely,
fi
R. Daniel Lat a, P.E., R.L.S. RECEIVED
uct; 1 RDL/ksb `(1900
Wllmington Regional omen
enclosure DEM
;t
Y
c: Frank Ballard
Jim Craig, New Hanover County Engineering C
A MM D
Hugh Caldwell, City of Wilmington
u� DEC 1 991"0 J
WE M
The Cotton Exchange • 321 N. Front Street • Wilmington, North Carolina 28401 • 919 763-5350

�eVa
aae
r14A
w a tv
�o
L /R cPi�r COM NQ�JS /�U,2S "�J C> NUMG
',S %o%r� wi1Tr� /yii-,VA6c�f..EN% 5Y5%EM
B /: /AGBEk i t fj�t'/GUT � c
,
3 2/ N. Fz s ;,r S,—.e e e l
w/� � ac �o. ✓c zF 4 - r
9rq 7G3 - 53So
9rq 7e,2- 62B/ FhX
AWE
1unU( DEC 1 9.` 1990
DEM
YBOJ
ma's
_ t: a SEAT (.• =
9534
a
1.1010
�v
�o D

.gTORM DRAINAGE DESIGN DATA SHEET
PROJECT 1 �P-� ��-� �+�/rY•-- COMPUTED BY IzDt- DATE IZ- i3-9b
LOCATION CHECKED BY SHEET 1 OF
STORM FREQUENCY Ir YRS.
AREA(ACRE)
INTENSITY
PIPE DATA
REMARKS
VEL.
LOCATION
O�CIA
FROM
TO
TOTAL
C
,�,.
H
L
I
(C.F.S.
REO'D)[YPE
N
S 7.
ENGTH
SIZE
(OFO
0
AVAIL.
TOTAL
D0
ant? .1
d
r3
1.
1.9
0.59
G.3
7. 1
o,3
IoS
i�13
rZ
p.2
Z I
o./.3
6.3
g.'.4-
a. 3
`1 z
2Ai
3.0
O.or3
O.3
r^
lR
p.29
C•7
o.zS
/.
l-S5
75r
3.6
—
0.2
^ `5
53
IS
3.(n
g
-
Z
0.i3
l[. i
15.7
P,c'�
act
0,3
31
r-
4,Zvy
,Z
c, 3�
/.3
O.S
Pr_P
o.nr3
n.?A
8
?1
1 i
-
4.Z
o,3`t
G :
10.7
�c1'
a.n��
n•?
n3'
Z.�"
13
7
-
7.6
0.54
G.3
?S.9
Pc.•'
�,n
0, 3
so
=ot
z4
e�- I.
AG.
(=Y14
n, rv1.
rPc �'[/ST
rQ• PSI'.
�= O.
�( fY
riYli'
G�L[i.
yy
4�z
!
l'•r.
/-vrp•
1%n.
r., .�
G'Y i'?
7n .. i`
_
( =rl •n�
G 1
(Fv— OYr5 6,b-
C . RUNOFF COEFFICIENT N . LUtrFNJLNI N 1N1.11�---
H - HEIGHT ABOVE INLET OF MOST REMOTE POINT S - SLOPE (R) TIE SUM OF IE AREAS
L - LENGTH Of DRAINAGE AREA 0 . FLOW (C.F.S.) AND NOT THE SUM OF
1 . INTENSITY OF STORM (INCHES) TIE DISCHARGES.
t

i
_.---- I /�/eJf /`4�rJ /�o..c /�p.-.J, /?/-� `• i /2
(/r,G a.,AJ"'c .•. j,'er Gq, c.�c.t ,,-ru-�� Q•/ f/r ..,,ey 1ln.. Oe sr ..: r L}escc. 6�gc? /
7-,7A� D,7"Id-11f>e Arzcl. 8.o1 Ar-
P2 (c=. zi) /Z.o u=5 /OY 577c.
cv,
-
[;Z3.o-lZ.o)(,o.,,'�'�Coosrc/
cum
(�, 7�r o,= [✓.._... ,.,,c �o .,. ,ec-4+.-,r c: �-6�, r1
€<.
,,,,,,., A-Ro: A ago Ac-
_ sr
�tG>� STO J..AGE /-c%P- �(, .,iC%'� �n�QI-, I—
I �/4 •,GALL.
/,"&pwvv, 2.2I Ac e 4-356c, x !
K .9S = 7621
F,'
2
Pie v,oS•Eo . 435Gc Y ''/ra n,25- SZ7?
F�':
2Ye99
F'
/o...r> 5',kr4cl-Air--!
PE}' woof
G
5A. = u, 633 FT z
l7'TOdAC>t. �>a v,/, E.9 /6, -190 FT 3 C� /2, 29¢ Fv ;)
A Oo, TYo •,J A L- 7 a' cr c. i o ,..t
IPHA5e Z (/f//5
g[,/LDr G (✓r C G /6/45o F7�
A>r•np nc PAv, C /6/ l75
5 To/r2, 44o
5, c[ wAa,c.g 3 25-o
PHA5E (/--rrIR
18,4s® f,Z
7
rj/ZL �70er, c.-A-TPA. Dr Tt/- _ To Nr, .-per£ i9c� F�Tuk'E
Tom. Uc L 09011C �7 ev-✓oFr". 5 ySTrM Fie
&'4'1 AT 7-11/9 7/n,:/ fr,hsB77r 576nn />n'A...•5 70. 6i,' pc SAC NG
hs /A! of G•!L SG Gt Vl e. OR,, e-,IT

�Ha
aaa
�EiE../T/0.., /or�p �lCrS Tr...G Go<+s�p ucPoN PL us �7iisc .�
�/-`�5�
bf'Gi V/o05 ��ut?I fic_�5
Ep XrSTitiC1 Co. 57--
I (o t 770 h'.2
Li �t Z75
17 Zr o4 S Fr2 (3.95 A,)
�Fl-+> ri SJO/17tL t fC Et 12U..+O�� FEU �; /5• / rr
Vt2! x 17z/ 045 75' = l3,62o Fri
AL-rz:5 r7-
(Dcr 2c ca .rac,.ic�7s) 17, 305 F7 3
57or=- 57orzn C�c /�cc+u,ocnG�75 �C.>r o.: c✓, �n,- /?cc..75 )
/MPer u:u.g 3,95 Ac r 0.95 = 3,75
l.oz
4,77 =8.01= 0,5-9
i �O Sj��C.3 i /tXS.Ot Ac�= 7-9-77 30cFs
1E57./1-17r_p 1/��--E o:- ,�'Eo�/�Ev 57cpnc--E
25)' (?.8 - .Z(Z�)' ,2.5 = z,71
7p = 43,5(-1,-71)(8.01)
30
psi/-n7r/_ 157ot.uGc (Qp- 0,) TP
(30 - /Z)c Fs n 3Z n.- r GO 34/ 560 F73

3
E-DGS/CJ I% IO Nj'j AivQ �CITLET STe UG.;veG �o� ULT/-r /}'Tl
Or MI- $/Tt C EY/S Ti�C Coas7V vc7�0 N✓ /�r/.�se y
1L) ,
C�(ITL E-T NO VOKWAG HOST /3E Ho✓E> io P,l2o v/OE 30 VEG-?!T/VE
/:,eo P& R 7-'y S'NC E L /T / or LV/
To Co-,57Pac 7- A 5➢K6B7-
AO✓qcc ^�T To N�,�T�/�ngT /=vc!'c �7-y
/ /,J r .
E�7/i-rA7Z G
u
/
/T�G
(/ /7/3,n,5 iT;
io/? / /5e
/ni L✓^'17v
✓P %tGG
rA ee cC =
/�� 3oS rTZ
>/:l lr 1's//
o.� 93 /26/
65 v /W
E5T-i/-r /9T%_O
/U YK STo/'.i c�c �mL
� 34/ SGv
Fi 3)
Gc55
l7.� pc F7
9 Into li Pr /„�vtio Fr
= l � 2 59 F7 b
/W'
"o-SAL /-S -
Z/ Wnv6
/„ /<•o�. QD.
.OvTLET . (f i,t 7EkiA
GnV OF - avy'o `- 4p � IZ.D CFS
p c t-(.Toe ." why;. Q� ;7'l
�r
I I Kw�ori` l/u•-v.+[. TO Y[ DISC-.l•t.°r.f � I� � ? 65,/5 _ = O/. •��
17, 305 f-I
�1/l Y D!5c �r ��: 17 3oS Fi'x Icinv �� = O. (Ud cF5
Y
24 l,_s 360o Sec.
M ti D,5cHn ��
24 36oc
�5� 6rcC-n-,ve / SAP 9 P/L/ M;, ,
/7,r t Vt - 7 T1 /151
�kf FALL EQvn�,o. 6,UJCF--/� ouTF-�ouj.
1oyr- Sf"�Lwt,y
I.)'SE L'!5e-k - son' on w " " No;, CPe:67 AI � e. i-V. �9, fio
37.=� I.5 k15E = I�/S'U r-1' C7r•: t`�r FcG I✓✓No;'I 17nc_
Ci 17305-W� n-()
T,-,/ VAF/0✓5 P,41, T2'!5 �i5f./._ 'f n»f Rt-41 Co F1?I
et5ot7S C')CVl c IZ'U cv9-

-t-/"5- I le-c,
USE LS�� wA7-LP-
USc 36 4l e"scv)
Q ov-r Nn7.=
I s 13�z�LL
`I.22 cFs
40.47 Fr.
H^,, Owi ' O. 10 CGFl-
G (ZOkA/
SEE AT-^cHc,� �TIIC1 15PP-cA1>5Hce7,
CITY C) F C/,JI L/+wC TO,J F2 0v'Y i. me tiT
C HEG'c
50 y[F,r-
57nf-/..
G H•'
D.;Pnr+c •.
P,/ v!=F
�G➢7�+ IJ=
l�-
,L:_
(L.4Z- ,2
�v/�nr
F /oL�..e =
4.r(�'• �
8.o, A�
= 120/ 957 FT3
Qr =
k)=
3(-.E r5
TP =
c 39 . Z
5AY
?7
I120vTL S0 i/? THit--&H V^5r•J7 LM&e-K MAY, 4001" y 57K�e
(SEE %?'rrscnE-b Kau P..i�• T/.li Lc)
f1A, 57Af--E = 41.7 rr
5Cr EmGec-'4-1 7P'�L ✓/,/ A7' EL£v 42.Jr
Ghlccr roe 5A/DH. PA710 of
DA or= Feoj�-. 9,01 Ar 398/91G F1�
P-I tr-6v 37.50
13! 710 f5 IuTE. re e.ntE �:)
13710
�G I/+hte V�Ovi OF Sr TG (Lis7/...hTE �c VELd�h C../) 7
/

SA/DA
- 85"6
1'SS REMOVAL
WITH 30' VEGETATIVC
FILTER
IP1PI R. `i.
3. 0FT'
3..` 'T
4 . OFT 4
. FT
S OFT
5. 5FT 6.
OFT 6 .
5FT 7 .
OFT 7 .
5FT
l00
.9
.8
1.3
.7
1.2
G
1.1
5
1..0
.9
II
.7
.6
.5
20'
309:
1.7
2.5
2.2
1.9
1.8
1.6
1.5
1.3
1.2
1.0
.9
40'
3.1
S.0
2.6
2.11
2.].
1..9
1.6
1.4
J..1
1.0
50o;
4.2
3.7'
3.3
3.0
:'.7
2.4
2.1.
1.8
1.5
1.3
60c
5.0
4.S
3.8
3.5
3.2
2.9
2.6
2.3
2.0
1.6
70b
6.0
5.2
4.5
4.1
3.7
3.1
2.9
2.5
2.1
1.8
80
6.8
6.0
5.2
-^..7
4.2
3.7
3.2
2.7
2.2.
2.0
90°
7.5
6.5
5.8
5.3
4.8
4.3
3.8
3.3
2.8
1.3
1000
8.2
7.4
6.8
6.2
5.6
5.0
4.4
3.8
3.2
2.6
SA/DA - > 90$ TSS REMOVAL
FOR WET
DETENTION WITHOUT
VEGETATIVE FILTL:R
IPER.o
3.OFT
3.5FT
4.OFT
4.5FT
S OFT
5.5FT
6.GFT
6.5FT
7.OFT
7.5FT
10%
1.3
1.0
.8
.7
.6
.5
.4
.3
.2
.1
200
2.4
2.0
1.8
1.7
1.5
1.4
1.2
1.0
.9
.6
300
3.5
3.0
2.7
2.5
2.2
1.9
1.6
1.3
1.1
.8
40%
4.5
4.0
3.5
3.1
2.8
2.5
2.1
1.8
1.4
1.1
50%
5.6
5.0
4.3
3.9
3.5
3.1
2.7
2.3
1.9
1.5
60a
7.0
6.0
5.3
4.8
4.3
3.9
3.4
2.9
2.4
1.9
70%
8.1.
7.0
6.0
5.5
5.0
4.5
3.9
3.4
2.9
2.3
800
9.4
8.0
7.0
6.4
5.7
5.2
4.6
4.0
3.4
2.8
90a
10.7
9.0
7.9
7.2
6.5
5.9
5.2
4.6
3.9
3.3
1000
12.0
10.0
8.8
8.1
7.3
6.6
5.8
5.1
4.3
3.6

79201 a Logo, W lmmeEdnk�
Pnj -ec Ener, R A
r f c, E M 1 I N ir", T F 0 Ul 0 pas 04 DEE A
quoyraph Forcularm h, HA Step Funju
DEven St urm: 10 NO,
5p WaK Oct,
CA 2.
---------
T. P -'C'
PCs! T:F0
---------
DE I r, t I .E
St Ep (M it.
A
12
88
SIR
3.0
My
0A
5.13
CA-
5)
3. T
172
n 1
1, 67
174
w. 1 i
14
M7
9C
Me.
1
i E
15, T;
SP
2. 4 3,
lF
0. 01,
H
17,5-,
NA
2.24
18'
1 Q-
20
20,74
A
2.57
is;
P,07
2 4,
A I 1
191
1, 76
AS
Q N-1
2E
27,47
lus
101
190
ME
A
ME.-'
110
1A
02
TV
20
29.7;
W
1 1 Z
196
GIAS
34
0.71
116
1,17
196
10''
25
TOM
IF
1. H,
29A
0.04
22
27.47
120
0191-
20--
03;
40
2�,�i
in
CA-'
204
AN,
Q
21,64
124
0 A
2H
6A
4,
21. 79
126
U.N.
251
GAS
G
26.01
12E
Q. 7-1
An
0. Q,
A
MY
A
0.0
21
0.0-
50
1 L 0:
132
UK
2A
1A
15.75
134
2:6
54
AN,
13E
VA
wa
010
I
MAL
13F
0.4-
:20
0.0-1
0,34
140
Iv
2:2
0.02
AT
GA
224
1 ul
E 2
15. A
144
0.27
22,
nol
h 67
146
0.4
222
D&I
F
IN-
230
Ili
150
0.2;
A-
70
42
0.2-
wh
All
72
0.2,
At
1 v2
A
f3c.
V,n
I v
20-
V'Q
. 5 h
IL;
W

mml:mw,m. *«wan
mmt e e z ! *
timer c m ema aDEC »
x»na «: _o;
, mn mem Poi - me later Lem! c m 3150 su
«—
COSTOUT
»r
And,
ws
ARE;
m.
». «
+ n,
>!
r m.
------------------------------------------------------------------------
»m
cu. ma«
m
a
w:
r
i
,
s
»r
9342
wz
!
AT
nw
!.
:m.
2 1 07339i
a» e
cz
s
1
ez
«u
!xm>:
096612
>m
a
P«
en
45341
;ae»:
»
we
>
vs
15392
67732
:11.01424a942
«m
«
!m:
es
zm
!ate i:mm
wz
<
!w:
za
cm
,umw:xv,
um
e
um
ws
cm
; cem
a!»!
:w
<
mn
22700
wm
, me 5
1197224
«m
a
mx
av
165252
mite»=
B2525
a m
m,wassmz E P- L A T 10 N 5H e
�=am«mmemm
w=eza
mawwa>ma
nmm
e: mnw

lOYP_ STOZ.-, P—c T,-C-r
F Fr,ui;
G';F:iL1. BUS'=..._ rP __P1T1E:R
inpu` P:aa:
S_.
'T
Enif, r; C1L
MLY. E
etflGp-.r.,i.
a'a E_
{un•:ii0n.'
1' 1. 2''ii7;
F'EY rd.ri Pi!u
f'3Gi
Rp'r ;:ai v;t iiln:
27
...`!'
Ft.
!nitiat _-:.
--
.EE',:..-err,. Fo_. E!_....
_.._,.
---'i!'
Cc. Ft.
tea.('::
Ft.
" i�ritxe k El-v.
(W-,tpy Gila 'r Ease) (Fr inz-y cp11v_y; (F'rinerliu
2cr ^i.OP it: 2;nv
--------------------------------------------------------------------------------------------------
(%
i'
_•__
40oi;
_ ,�i�
!I, C'
Q. Q[
(i.
4c1:G
('.'l4
0,(14
11.01
0,,05
L7
fir'.
0.07
__
c._.
ail
YJ. E?
,_._.
.i. 7:
7.1-
4E
16.`__
ecrr(:c
E
5E
i3.3c
EE:%2i
4:. _
:.(i`
6,14
H
9.05
40.43
O_. _
:..0

,tic C
LY
n
7S
17
E 3
9
-2
Z'-
ij
7 LTq
7
To-
I
I ol 10
L
F. E
7
7o
r
1`7
7�
v
to-
L
LOT
Itl
73
-91
�7 3
Q 7
7
I'L7
71 1
7
,-�Cl U (-, Q Z , z) C?-1 5-, -a /, 0 1

of)
6,.�:7--
.c , S9
0,07
0.07
0. 0
5, 7�(:
2 E
010
EN61
3109
OX7
0.61
0.09
5. M
TO
OAS
6104;
33.95
0.07
0.07
0.00
5, T:
3w
ON
&202E
3B.91
E07
0.07
0. Oc
5. V,
340
0. o ?
63".10D
S-. ?I
0.07
(11. 0 -1
f) I o 2
5.76
117.
0, 07
07
3-52
5 7
07
0
7
o
95
so
640
E203
3192
167
V57
000
5V
my
Lou
ME
31 SE
OAq
107
Not
176
."An
6216.E
N. 18
Ol o-i
1), 0 7
0,00
5,76
�7-
0 , 0 i�,
E-E'l
H.:,
0.. -1
0 . 10, 7
5. 7E
in
010
6215;
ds. 9B
107
0.07
0.02
1. A
so
001
62E_7
SQ. 97
107
CAY
OAU
175
2E. 17
O,o7
0.07
K i
is
E2102
31.0
607
0.07
0,00
5, A
jl- I
0. ofl
E 2'78 5
57
07
(11(-,
R
5. 74
Ts
M)
12755
30, 37
0.07
0.07
0.00
5,74
ON
0j0
0270
33.57
107
0.67
0.05
5.7-

A
5A f
J�
qq;
1347
0 1
S
`017
10
yy�t
,�, i r
3 t I i
it' K
LL,921
IT's
is 4 i
-?,; �
-31 E; I
W'S
AT 'T 1
NZ1
it T
011 i
OF's
:MET 1
0,41
131
0,11
TYPET
Fit
0111
--J, ,
e I
--Ili
1713
gZ11
mm
Fil
1
bs'ET
3t
A 41
HAI
TIT
TVH
5' 1;
Up I I
loll
-i
IV H
Li 471
A 1
00' 11
y TV
Sp-O i i
­YL;
r3
zill
i 3 K 1
51
LSTI
?KI
T'D20 I
Io 1 -,7
-,,7
7911
6110
lit
ma
m9
I r 1XI f
»77
d.y,
OSTI
IS46
111
OSTi
i I
me
T
05%
16 19 L
111
535
L8,01
90936
19
EVA
ma
OKI
CC'S
CG 100
GUR
00
A is
011C
01*0
S91
L v0p
we P 5
S (I I s
:
Sh
i 3' 17
Sol
01
RIET
IZZLI
AWN
A
01
191
301)
5 13
SK
vzzoi
6019S
p 3 1 9
001
O's
1010
0,6Z
6903
LVA
LE IS
001
so 1
301
A All
T ss
- - , \
00.0
901
901
4!s
ma
77,717
m.
0TO
SVO
too
»s
m 7v
mi
IST
001
too
zoo
6y tE
0800
2171
Ez V
Out
70 0
70 10
is I a
AHV
E94
p
TIT
OUT
160
ifo
Ty'a
ONE
AI
R W
GHT
U01
Got
01],H
vjwPK
v1)
1 ; T
DOW
001
004
Ar I z
IlkliIH
'i" 0
J
--------------------------------------------------------------------------
m --.) + > ( -- I --I ) 1,3i -1) 1 13 1 J ) ( I I I 1 11 j ,
[2103 sl 100 AS MA Af NINE) Tonz JE�11011:
Mzmex
=w
»0912 Q
91
U! 9,1 il
CI 13 1 (f
= p ",
091 =e
Jmn«w®«
ietem)
12"Ed AT
a,K
iji) .SIT
awns
nave sew 10 1`003
12 '" :(MaH p1j 3md nut, mass impil
*13 -Ualj"m
TEINCI - q
Aniv , A
wupway
4 U3139 'WOO d3DM
ji-113i WM� 1.1-iclia 'In
,ij 691; Hot Al.'
06 03G 00 1 113
vs .10
(um 471AX
F es I -g --,vJ
nit a
,un my
YJ IT =a
nw« memo eau
mg! wo!
GIATRI JEF ASHN Immom marm-,
!UPSON a wfm
In 0600 1 inqu

50 '/P- 57&1:-'
pAer 2 e-F-
icy
6,13
11 113E
41,57
11, A
0. 11
; 2B, 2v
11, 11
104
5.47
WERT
41.11
1132
112
121 S?
11 M
10E
4.30
luRbA
41 A5
15.51
0.12
10,94
100
!12
4.22
101AA
41 A?
1173
1,12
51.57
10.71-
116
3,70
10, 9.
4 1 . 2.
WE
112
1018,
10,66
12-...,
1 , �-'.
1 5
4!1_1
16.52
0.11
HIM
1515-1
12a
2.55
KNO
M 12
1407
On!
35,78
15.37
HE
2.51
111W
4102
Q 12
0, A
HYX
19.0
132
2,29
STOP
41 K
10.05
0A:
03.27
10105
13E
1, H
96127
4111
TH
0, A
77.01
9.8.1
140
1.70
9021
4011
0. is
A. ''
7011
S.
144
1,19
92150
4162
15:
6. T
54,71
2.5-
14
ill.
IA"
34,
42
9,1;
0.10
F205
M-
I 5E
i 1 0!
Q 11 "
ul 2
rAl
n , 10
025
1.0,
As
O. .c
WN
40.02
PAT
0.16
21.56
F.K.
372
Clio
7053S
2302
9.12
(q 09
17.35
E. :.'.
176
9.52
77734
3KR2
A90
VOR
2h 0;
A 01,
180
14E
759E.I
532
7 AS
103
1 T. 00
LEE
I04
0. 4
7 4 -, -', i
39. E
7.46
OAS
15,35
1.4c
i 6,11
0 , _
72n-
1 -1",
7,24
ME
m99
7.24
192
0.31
70827
39. 4
hol
ONE
6.07
7.0i
1ss
0.27
W?
2135
630
0.05
6.32
610
No
12;
67110
35,26
4.25
Olus
4,17
6,56
A4
0. 21
Ewes
25.21
Koo
NOT
2.92
6.0
20 i
OAS
APH
35.17
122
0.01
2.15
6.2!
212
.iT if
E-,W,
cl?. id.
1.71
0.09
116S
EM
A 6
OM
65220
29,12
W
OAS
1,27
6,17
0.12
iD
i.05
6.07
IN
F. 1
224
0.11
64739
NTH
0.56
0.67
WAY
ME
KA
1 it
Ehil
ROE
0.75
0.07
6.65
E.017
K 2
Ms
6404
W W
W 63
ON
0,51
&K
TO
107
WTI
WE
I R
0.07
CAT
Ells
N 0
0.07
E4210
2105
0.47
0107
P,40
5.91,
24
" OF
6611
3105
11:
DID-
4 24
5.5'
24's
0.0
6403
0:
A. 36
0.01
0,27
5.5--'
E-S-z
J, 04
M2
0.07
0,25
5. S."
25E
0104
ESSIS
0,04
0 as
0.07
0.21
5.9-i
2 A
1 AT
6301
3102
126
0.07
UP
5. 5-1
26;
0.01
6171
2502
Gly?
0.07
ME
IV
H 8
032
HAS
3302
� 21
0.07
0.15
5 S"!
52
It?
6104
2102
Wis
(107
GM
5,90
0 E
012
E364
3102
0.17
0,07
5.10
5169
289
W02
63HE
31.02
AM
0.07
DIVE
5.69
Y:
102
E174
39,02
0J5
0.07
5,07
51 Bi.
HE
101
6012
3102
LAI
0,07
ME
5,E7
292
t 01
E20:
50.01
0.13
0107
0.05
!167
-c
0 1
23, 0 i
Cm
0.07
U.04
51H
350
Kol
SN51
3101
v 1:
0.07
0.04
50-
304
No!
ENT
3101
Wo
0.67
0.03
IM
205
M
SM
Wl
6
0.07
0.02
5, 0
" I i1.
C,_.'i01
1
55
(n 57
On
F. A
120
0,00
1571
S9. 1
Ox?
on?
0 0:
5 X

5-0 y P- qoP «
too
we
33. 00
«s
0,07
6.01
5, & oF3
me
3S. 00
«a
re
0. (10
M",
20
NO
Els?
shou
0.07
0.17
0.00
518.
At
ONG
SH2
2100
k07
a! 7
0.00
se
J*
Ow
6PE5
WO
117
007
0.00
5, S2
- ,
C. 00
-
6324,
3 Ov
0.01
v. Ol -i
0. 0,C,
K"
2 4
s«
cm z 2
7 a
«r
0, o7
us 0
5, E
0
0. 07
E 2
E
E 3 i
�9. vlll
07
0. 07
0.05
51 E �
MO
H i
12,
a;
0 0
M!
13 4
»
07
0. 0 7
0, e
0. 0o
me
3 E!. >
0. Q 14
o«
cm
5.
mu«»
'0
K. »
0.07
WAY
K 09
me
SAR
too
me
M 99
107
0,07
0.00
5. IN
Kll
0. 0o
E St, 5
311P I s
0. () -1
(). '17
« 00
Ea
2,
«
ma U, E
N, JS
(A
057
HAO
511.1
0. 0".
E,.-,'O
0
E?-Ai
N s
U. Ill
o,
o. 00
c>
M3
PAP
Phil
319S
107
0.07
100
5, 7:
00
Lou
WO
311
0,07
0.07
0.00
1, a

a
State of North Carolina
Department of Environment, Health, and Natural Resources
Wilmington Regional Office
James G. Martin, Governor Bob Jamieson
William W. Gobey, Jr., Secretary November 8, 1990 Regional Manager
DIVISION OF ENVIRONMENTAL MANAGEMENT
Mr. Carl Farmer, Jr., P.E.
Henry Von Oesen and Associates
Post Office Drawer 2087
Wilmington, North Carolina 28402
Subject: Request for CERTIFICATE OF COMPLETION
Engineered Stormwater System
Stormwater Project No. 880608
McNeill Rest Home
New Hanover County
Dear Mr. Farmer:
On June 24, 1988, the Division of Environmental Management
issued you a Certification of Compliance with Stormwater
Regulations for the subject project. Stormwater Regulation 15A
NCAC 2H. 1003 (k) (3) stipulates the following:
Upon completion of construction, a registered
professional appropriate for the type of Stormwater system
designed must certify that the system was inspected during
construction and was constructed in substantial conformity with
plans and specifications reviewed by the division and complies
with the requirements of this Rule.
As of this date, our records indicate the required
engineer's certification has not been received. Operation of the
stormwater system prior to submission of the required
certification is in violation of NCAC 2H.1003(1) in accordance
with NCGS 143-215.3 and is subject to enforcement action pursuant
to NCGS 143-215.6. If construction of the subject project has
not been completed, please provide written notification to this
office which includes the present phase of construction and the
expected date of construction completion. Written notification
is requested to be provided by December 8, 1990. If the facility
has been constructed and placed in operation, please submit the
required certification (attached) immediately. Construction is
considered "complete" at the time the project is occupied by an
owner or tenant for its intended use.
Continued
7225 Wrightsville Avenue, Wilmin&,¢on, NC. 28403-3696 • Telephone 91925C>4161 • Fax [phone]

Mr. Farmer
November 8, 1990
Page Two
----------------
If you have any questions concerning this matter, please
call Alexis Finn or me at [phone].
Sincerely,
(— a''
ve Adkins
Water Quality Supervisor
DA/AIF: 880608.PE
cc: Alexis Finn
W:17mington-Regiona-l—of-f icy
Central Files

State of North Carolina
Department of Natural Resources and Community Development
Wilmington Regional Office
James G. i lartin, Governor
S. Thomas Rhodes, Secretary
Mr. Carl Farmer, Jr
Henry Von Oesen and
805 N. 3rd Street
P. 0. Drawer 2087
Bob Jamieson
DIVISION OF ENVIRONMENTAL MANAGEMENT
„I �t
I�f
V Q
June 24, 1988
P.E.
Associates
Wilmington, North Carolina 28402
Dear Mr. Farmer:
Subject: Determination of Compliance
with Stormwater Regulations
Project # 880608
McNeill Rest Home
New Hanover County
The Wilmington Regional Office received the revised Stormwater
Management submittal for the subject project on June 23, 1988.
Based on our review of the project documents, we have determined
that the project complies with the Stormwater Regulations set
forth in Title 15 NCAC 2H.1000.
If you have any questions concerning this matter, please contact
me at [phone].
Sincerely,
Original Signed By
0. PRESTON HOWARD, JR
A. Preston Howard, Jr., P.E.
Regional Supervisor
APH:mb
CC: Bill Mills
WiRO, CF
G
7225 Wrightsvill; Avenue, Wilmington, NC. 28403-3696 • Telephone [phone]
An Fn,,A Onwrtuniry Affirmative Action Lmolover

DIVISION OF ENVIRONMENTAL MANAGEMENT
Evaluation of Stormwater Treatment and Disposal System
Draining to Waters Other Than Class SA
PROJECT DATA
Jd/✓e
Project Name:
lLi�rLIU
//
RESi/dOmC�
Project No. 990(008
Location.(County, Township/Municipality, Address):
dr. ,1 nnA141VNC-9. i'htm1/16p/O/J
Applicant Name: LfrKL �%}kM�Q �E•
Mailing Address: 4tv;,ev vmC&SEJ✓-E f}�SOC/ T1S
e,Q-
Submittal Date: P.C. Dri/F� Zo87 0 IGMy nC -
kL✓i-r)o/✓ 6 f Z31SS
Water Body Receiving 'Stormwater Runoff:
Li Name of Water Body: % TO 4-vJt frl 5
Classification of Water Body: 0&A.5S1Fi&P "C'
WET DETENTION POND
1. es', No The design storage is for the runoff from all`
impervious surfaces resulting from 1-inch of
rainfall and is located above the permanent pool.
2. Yes.' No The permanent pool is designed for 85% TSS removal.
3. es; No The runoff completely draws down to the permanent
L, pool in 5 days, but not less than 2 days.
4.
,Yes
No
The mean depth of the permanent pool is a minimum of
3 feet.
5.
es
No
The inlet structure is designed to minimize
turbulence and short circuiting.
6.
es
No
All overflow and discharge flows through a
vegetative filter at least 30 feet in length.
7.
('Yes
No
A method is used to provide even distribution of
runoff over the length of the vegetative filter.
8.
No
The slope and width of the vegetative filter
`Yes
provides non -erosive flow for the 10-year 24-hr
storm with a 10 year, 1-hr intensity.

u
9. Y s No The vegetative filter has a slope of 50 or less.
10..Ye) No The vegetative filter is natural, grassed or
artificially planted..wetland vegetation.
11..Yes No An appropriate operation and maintenance plan has
been provided for the system.
12.(Yes No THIS PROJECT MEETS THE STORMWATER CONTROL
REQUIREMENTS OF 15 NCAC 2H. (g), (i), (j), (k), and
(1) (For yes, 1 through 11 must all be circled yes).
Brief Explanation:
INFILTRATION SYSTEM
1. Yes No System is capable of treating and disposing of
runoff from all impervious surfaces resulting from 1
inch of rain.
2. Yes No The system is located at least 30 feet from surface
waters.
3. Yes No The system is a minimum of 100 feet from water
supply wells.
4. Yes No The bottom of the system is a minimum of 2 feet
above the seasonal high water table.
5. Yes No Runoff in excess of the design volume by-passes the
system and does not flush pollutants through the
system.
6. Yes No A method is used to provide even distribution of
runoff over the length of the vegetative filter.
7. Yes No
8.
Yes
No
9.
Yes
No
10.
Yes
No
11.
Yes
No
The slope and width of the vegetative filter
provides non -erosive flow for the 10-year 24-hr storm
with a 10 year, 1-hr intensity.
The vegetative filter has a slope of 50 or less.
The vegetative filter is natural, grassed or
artificially planted wetland vegetation.
The system has been shown to completely draw down in
5 days.
Soil has a minimum hydraulic conductivity of 0.52
in/hr..

0
12. Yes No
13. Yes No
14. Yes No
15. Yes No
The system is not sited on or in fill material.
The system has an observation well.
An appropriate operation and maintenance plan has
been provided for the system.
THIS PROJECT MEETS THE STORMWATER CONTROL
REQUIREMENTS OF 15 NCAC 2H. (g), (h), (j), (k) and
(1) (For yes, 1 through 14 above must all be circled
yes).
Brief Explanation_
DIVISION OF ENVI
Wilmington Regional Office
6124
Datd
Date
CC: Applicant/WiRO/Mills/CF
MANAGEMENT SIGN -OFF
Evalua
Regional Water Quality Supervisor

®HENRY VON OESEN AND ASSOCIATES
CONSULTING ENGINEERS
A N D PLANNERS Telephone [phone]
805 NORTH THIRD STREET P.O. DRAWER 2087 WILMINGTON, NORTH CAROLINA 28402
June 22, 1988 Ag90"
N. C. Department of Natural Resources RECEIVED
and Community Development ,JUN 2 31988
7225 Wrightsville Avenue
Wilmington, NC 28403 AlIWInSton9EMional ofnce
Attn: Mr. Mike Williams
Re: McNeill Rest Home
Wilmington, N. C.
Dear Mike:
Attached for your review of the stormwater control system is
a resubmittal of the site plans for the above project. The fol-
lowing revisions have been made per our previous discussion:
1. The retention pond has been shifted slightly and size in-
creased to give 6 square feet at the normal water level.
2. The outlet riser was revised to require 10 outlet holes in
lieu of 11.
3. The drainage for the access road has been rerouted to divert
all stormwater to the detention pond.
Included with the revised plans are revised drainage cal-
culations and an operation and maintenance plan. Please advise
if you have a question.
Sincerely yours,
HENRY VON OESEN AND ASSOCIATES, INC.
P=rmerl(Jr., P. E.
CHF/GGB
Enc.
cc: Mr. Jim Craig

JUN 2 3 1988
Wilmington Regional office
f)F.M
OPERATION & MAINTENANCE MANUAL
STORMWATER SYSTEM AND
TREATMENT FACILITIES
McNeill Rest Home
41st Street
Wilmington, North Carolina
-JUNE. 1988
HENRY VON OESEN AND ASSOCIATES, INC.
Consulting Engineers & Planners
805 North Third Street -- P. 0. Drawer 2087
Wilmington, North Carolina 28402
[phone]
HENRY VON OESEN
CONSULTING ENGINEERS
32,�44rQ2F?bA�',NNERS
I I
AND ASSOCIATES

OPERATION & MAINTENANCE MANUAL
STORMWATER SYSTEM AND
TREATMENT FACILITIES
McNeill Rest Home
41st Street
Wilmington, North Carolina
JUNE, 1988
HENRY VON OESEN AND ASSOCIATES, INC.
Consulting Engineers & Planners
805 North Third Street -- P. O. Drawer 2087
Wilmington, North Carolina 28402
[phone]
3234 (062288)

�w:•aw:r•�K•�a�rx.M
Description
Page
SECTION
1
DESCRIPTION
3
SECTION
2
OPERATING PERSONNEL RESPONSIBILITIES
3
SECTION
3
MANAGEMENT RESPONSIBILITIES
4
SECTION
4
DESCRIPTION OF SYSTEM COMPONENTS
4
SECTION
5
SURVEILLANCE AND INSPECTIONS
5
SECTION
6
ACCIDENTAL SPILLS/OVERWASH OF POLLUTED
AREAS 6
SECTION
7
MAINTENANCE OF FACILITIES
7
3234 (062288)

OPERATION & MAINTENANCE MANUAL
STORMWATER SYSTEM
AND TREATMENT FACILITIES
McNeil Rest Home
Wilmington, North Carolina
SECTION 1: DESCRIPTION
The drainage acre served by this facility consist of
approximately 8 acres of a tract located on the west side of
south 41st Street extension in the City of Wilmington. The area
has planned one building, the rest home facility, as the first
phase and the associated parking areas and access roads. The
area is flat and sandy, predominately classified as Leon fine
sand and a small area of Murville fine loamy sand. The area
drains to the north to a drainage ditch which runs northeast to a
prong of Hewletts Creek. The site is above the 100-year flood
zone and has an average elevation of 43.00 MSL.
The proposed system is designed to accommodate the runoff
from the first phase improvements of this facility.
SECTION 2: OPERATING PERSONNEL RESPONSIBILITIES
a. It is assumed that the maintenance staff will have the
responsibility to oversee the system, along with other facility
site improvements.
b. It is suggested that a routine method to assure
inspections and continuous surveillance be developed and used.
C. It is suggested that the facility manager visit the
facilities annually, especially the detention pond, its inlet and
3

outlet structures, and examine to detect any evidence of
malfunction or failure.
SECTION 3: MANAGEMENT RESPONSIBILITIES
It is believed that management of the facilities will
require only that it be included in facilities requiring periodic
verification from maintenance personnel reports and repair
requirements and costs. Management would be a part of all
facility site improvements.
SECTION 4: DESCRIPTION OF SYSTEM COMPONENTS
a. Stormwater is accommodated by a combination of ditches
and underground piping. Pipes have been sized to accommodate
that runoff from a 10-year frequency storm. This is a rainfall
with an intensity of 6 inches per hour. This is a standard of
design which has been found to be economically feasible for the
sizing of drainage pipelines in eastern North Carolina.
Pipelines are graded so as to maintain a velocity of at least 2
feet per second and not exceed 5 feet per second. This will
assure against deposits in the pipe system and yet not cause in-
tense transport of particulate and suspended solids in the flows.
b. Rainfalls of greater intensities or longer duration
will not normally exceed the capacity of the system as such flows
will increase the hydraulic gradient of the system, resulting in
increased velocity and capacity. Care has been taken to avoid
flooding in the system; however, short-term ponding in the
parking lots may occur during extremely heavy rains such as
4

accompany tropical storms. This should also deter flooding of
the system.
C. Current regulations encourage the use of swales and
organic filter areas which allow for reduction of velocities and
settlement of particulate and suspended solids in the stormwater:
organic growth such as cattails and reed type vegetation also
serve as absorbers of chemical residue in the stormwater,
frequently referred to as non -point source pollution.
d. The detention pond has been designed in accordance with
criteria set out in DNR&CD Environmental Management Regulation
Section 1000, "stormwater Runoff Disposal". Details are set out
on the plans and indicate a permanent wet pond of 4-foot depth
with additional 6-inch silt capacity. A 1-inch rainfall will
elevate the pond 2.3 feet above which the pond will overflow.
Orifices in the discharge standpipe will allow discharge of up to
1 inch of rainfall during a period greater than 50 hours. The
facility will be fenced in to warn personnel of its presence and
avoid accidents or damage to the facilities. Discharge from the
pond is through a vegetative filter swale into the existing
ditch.
SECTION 5: SURVEILLANCE AND INSPECTIONS
a. It is suggested that a visual inspection be made weekly
of the surface areas of the system to detect any indications of
blockages or flooding at inlets, manholes, or erosion or damage
to swales, detention pond and outlet swale. A simpler inspection
should be made following heavy rainfall and storm events.
5

b. A suggested semiannual inspection should be made,
removing covers of all structures, cleaning out debris or
deposits from the structures. Where indicated, a visual lamping
of the pipelines should be made to detect any obstruction or
damage to the lines. Stone pads at discharge points should be
checked for proper condition and completeness, and repaired where
indicated. Fences and slopes should be checked and repaired
where necessary.
C. A report should be prepared in simple form and
maintained in the proper file for all such inspections and
maintenance actions. Copies should be sent to Management as
information.
SECTION 6: ACCIDENTAL SPILLS OR OVERWASH OF POLLUTED AREAS
a. In the event of an accidental spill or overwash of an
area containing hazardous material, the event should be
immediately reported to A. Preston Howard, Jr:, P.E., Regional
Water Quality Engineer, 7225 Wrightsville Avenue, Wilmington, NC
28403-3696 (Telephone [phone]).
b. Immediate action by facility personnel should be taken
to contain the spill or overwash, if possible. Corrective
actions should be taken with the advice of the Water Quality
Engineer or other designated official having authority in such
matters.
G

SECTION 7: MAINTENANCE OF FACILITIES
a. Pipelines should not normally require cleaning. If
required, normal pipe cleaning equipment operating from
structural openings should be used.
b. Inlets, catch basins and manholes should be cleaned by
direct removal of obstructions and debris through the top
opening.
C. Swales and ditches will require careful periodic
cleaning by removal of sediment deposits and eroded material.
The use of hand labor and fine grading equipment such as Gradall
type units is suggested. The material should be trucked to a
landfill for disposal on the facility.
d. Stone stilling mats will require periodic repositioning
and added stone because of wider wash and heavy flows displacing
the material. Care should be taken in such maintenance not to
damage the filter media under the mat as this will provide
protection from underwash.
e. The detention pond should be checked periodically for
siltation and filling at its inlet end. When such amounts occur
to warrant removal, maintenance should be accomplished as for
swales and ditches. Banks should be protected and erosion
repaired with sod to assure full coverage. Fencing, gates and
signs should be maintained in good condition, repairing and
replacing where required.
f. Where maintenance problems appear to affect the
successful operation of the facilities, assistance should be
sought from the Designers or competent sources.
7

PROJECT
ONNER
LOCATIOv
DRAINAGE
DESIGN CALCULATIONS
*-e8e&og
RECEIVED
JUN 2 3 1988
Wilmington Regional Office
OEM
T Perm
✓nc.Nr I I.L �Z soy-)s i►QC-.
t I '?-T Sr?rrT , W'LrnI fvC-, i oa , f.J.r .
N
RU
Q�� FSSiOry••
SEAL
8406
iZFE\/I"g&0 CAlzI/98
®HENRY VON OESEN
CONSULTING ENGINEERS
AND PLANNERS
AND ASSOCIATES
Telephone [phone]
805 NORTH THIRD STREET P.O. DRAWER 2087
WILMINGTON, NORTH CAROLINA 28402

DATE
DESIGN
,I
HENRY VON OESEN &ASSOCIATES
SHEET
2
-
.Wilmington,
Consulting Engineers
North Carolina
OF
CHECK
JOB
FOR
JOB. NO.
A2fm >vo.
7-7
,vLP
1
29
i i,'
�.v'z,
G1
i
rf
Z.DI
i i; -,,�
C 7.r C
1
I
i
I
Vii1
80
G
1 17
s
L,iZ
I Y.
t
���
G
1 .3 i
! • i"
c�G4
;rt
G
.SS
xI
'Zo
61
{ k54.
z,7 i
13,2(1
PIPE SIZr SItLrGi.01�j
Las2rZp
I ,
- Q.- 2,54 F I �i l✓GpG) o.ZS�/,� V - -2.l
Aer,G
LT,
cf;� _ "5-n6 �r-s, USE 18" C-CPZ- .2S°/
GFS, I USr IZ" 2c1P@ ,�A°l.� �/=2.SS USF Gr_A<C
A STar,l FL 4' c.oNCr
Aprz A
�
Q= t.o$ GFS , (-),SF-IS" Rc.�� .B5%
AvCF,A .77
4+.W ETC
Q = 5 •�f �` GFS 1 U� E 18` err- -
Q = 6,7Z OPS i USF' ( 811p-r-pC' ,2s"/0
/SFlr.A
]y
= 1,92 cr-5, use- rz "2cpC� . co/° -ro b m i1
pdwtr( $64C-FS)USr 24 12cpQ .259/(_,
GLASS A STpn1F , 8 `L0a
lo.s0crs , USE -2 IzC-PG ,-29"/o v = 3.a 1zp2
'rot ALL
'D2rnS
IrJ D 1DizT;�,N7 L0Q potjr-
Q=

DATE
DESIGN
SHEET
HENRY VON OESEN & ASSOCIATES
13
Wilmington, Consulting Engineers North Carolina
OF
CHECK
JOB
FOR
JOB. NO.
%ITG-. SIZc-
w
C71A f=G
M
r
� y
t TI c.a L i7 l,Gf-' S rzc7,10Q
srLrc-i RrT-pFZz,:;iT rTATlvr Y
r�iZ_iAULA -ro �r:r-rF2ml/vr Q ./
USE Ct1AlJ-II(\fCt5
1. 4g e 2/3 S %z
m �
rr'. rl-) _ 0.oS(:n Fco2 ojaepl_o C2�SSrp SrorrS
C3'Tiz-
2 Ca (r�aAucic '�A471us) Alp
SU'rnmo2`�. -t-APPLE OF 'Pf 7F171 0 FLOW QFae2e5 cp
-t- T
F7
5Q. FT,
r
-
cF-S
F p5
e•5
�•0
1.75
5Ilo
0,3'�91
1,27
0.-72
0.7s
G,s
-Z�,19
C,74
0,4'7:3
2.89
0.c?0
1 ,o
S,0
5100
E32
0,c„oIo
i 5.31
1.0G
1,25
9.S
1,1`T
9.91
0.77S5
S.6S
1.Z6
i,co
I 1 ,o
9,75
11 Arl
0, 848cn
f3..m
I ,3Q.
1,7:;
12,5
IZ,(9
13,0-7
o,97CP
18,54
G
I.e)92Z
2S•726
I.Sa
CrF_FGL 17`1
ItJ >]ITGf.�=:5
rrGI02.I
TO r-;�<:,,IrJ
Qn = 9,7�p Cr-(,
' Y -
v /-
I,3 Ff--Ir-. ; , '04

HENRY VON OESEN & ASSOCIATES
Wilmington, Consulting Engineers North Carolina
CHECK JOB FOR JOB. NO.
-bF 7rzN-T1-0tQ iJjAiItj 12CQUteF rflrfjT-5
I.; pi 4,A- j0Urr>_ cwti ;-c-i a
GrT`1 of- W tLrY)rrlGr � �r,J
(n..; `r I�r7GrhJ r:r��i'- C6.t.2 (..JG,`;rr.`3 t nr
. r Lre.A<,,r w,. .��,� . C��r.J rl�u� n�2r.._1 �� c��
�05 ✓Jt1 (-r'..2rurJ f"L4.t�
i.;
l.(or.J dj= FtJYIF20I\JPAFtr l L ro.4I 1AGtr MG�-rJ-r
H-f,-Jr Mkof`4� T-1+4fJ 30'/ I In 2 �ura�S
su2Fcc e e f taw 7D P&-E IV I rJ6r 5 PMAM t-F<SS 1-0/1 td k
GLh l Lid-)-t pry 7� t,r• J (� I t' 'WA, P.J F'A LL ff' u ST rDr
,Ga= IMre- (-vtcy-)-s
ep-QUIOU S
c�R{-AGr /; C95 ',, 2,.Z( 4c) _ % Co 21 0
i
sv �aGE ; %zC zs� 5, °o aG� = 5. 2 73 C.
«,894cr-
r 7 2 � r4 / l,l> M C (� I J i
r Gc�r ;'r 1ic�G -GI L 17-7ts C.
%� rygprr Q u i o u e, -ro
��O
70TA-L, PCA4 &I A -CM G
%2QIN4CiYs��(?�C
�
-JA-
4.7 ' DOS - 1.9
vF.�,''>; u2mw�t-r r-L
�j�
�P
5,4 Ca (a38 e77
I KnT-�epOCAkT-(--iD Ct -eT 3

DATE
DESIGN
SHEET
. . HENRY VON OESEN & ASSOCIATES
S
Wilmington, Consulting Engineers North Carolina
OF
CHECK
JOB
FOR
JOB. NO.
JZ 34
PC" Ca w caL n51Q LEVI: t- C
I OU) _ i� el
rr' 1-3.60
�.t-vf,1Gr 1=_U+'::Lr�teLtr . FLrV
LT02;1Carz A,Ur�i�9f'X-k r-{�2
Tt)
InJLFT OFStl;n1
47 oo 1"
39, i Tn 42 ,o
Ley- LF
t Cln rz�(2,0-)
_ � CG3Y.103�
Cro x G 6.x;
H Q.
h�� BOO
I ca q 90 c r- ,','o9 Fa 2
I It 24r UFAu
_ 73246
414o c�
74 3a- cf
(::R� I�j = 23 �r-5, =- 30" (2-c.p C, ;25°/o V= 4,2 r- P5
L01-iCr wTdt-IF
Cx� 1'.rzm �LFQt1lfLtirn�nlj� - �r��i, ��c>ur� Ir,v��T F-n�rr l
. ISTDrlAcrrz- = )ZrSg4 cF
`i >7A-e;, I 121 8�1 Gr- X I >�•y X I r�2 X I M = O.O% CF:
2 Owl S `1 � 14I RS GO /Y�r (�CrL
S��is 12 8 4cr- tr:?A t 4-11� m
S aA h5 k 24 tc1z S X Go in I ti k �,rs = , 02't��

DATE
DESIGN
SH
SHEET
HENRY VON OESEN & ASSOCIATES
SH
Wilmington, Consulting Engineers North Carolina
OF
CHECK
JOB
FOp
JOB. NO.
U51tiCx PE-.2F0(Z4TFz0 21SW(L t OQIGnCrL iLFQJLI-Tart
Q= a Iz
Q= p.Col m 4ZlJ-Z—(�2Z�I 41r.�� I
Fi2F b tIvCIJrS ✓1 To twrtrre-
/ 1-G,v r, L.
ITOLft Ur
t"
2. on
o37�r
1.5o
.03 z7
0VA
14
1. 00
.0267
r`'
.50
oie>9
I"
o
0
Z,z8
10101
Z.60
ooq e
I .So
'co 82
, 0 5..
10•�
Q,3
1,0
DD(o 7
U S to - k-o L rz S
-i�r-_T�FZrnllrvF 21SrZ2 G+L\M�TT 2
�1Zrz p62. �oc3y2 SrD21,i
TO _ I o m i ry • , I = 8, 4 L.'-/u-F2-
Ql 2 J, C b `� — OJ2, V_ Cr-S
r-w M PG
SrO12A" _
-434 lip
0-0
cp V -
CW IDO - Qo /C1V/ CCU)
=32,z 4cFS - Qo� [-oo
32:� — IZ:.4
19,�30IsF5

DATE
DESIGN
SHEET
•
HENRY VON OESEN &ASSOCIATES
Wilmington, Consulting Engineers North Carolina
OF
CHECK
JOB
FOR
JOB. NO.
'�'�4—
nuTLfST piers
CZ= 1.9=6ps
2,-,p@ , 2o`%
/� (r c(rpL�
LrF 2
a
�i41 2r Sr 2
= 18 cF1� v : 3,-7 t. hs
lZtO cft , U 4v► FS`, --0Sr-
7A I S
vc,rru 10 �(�W2 Sr62m w/Ic)L�fP_ I �47_
Prz� 4-s01,, �7\\In�c�rZs� -- 3, i S I tic H-�'
i,/1+2 C&o n„Nl (rtC�� �Zo c�F
Is,eb c-
T2'j I�' wlr;)r 1 ILrF2
� 3 I
IkfTF,-AjSt'�-f
to,(� CF5
E 14-n-27 S i m I Uq2 -t)
-t;? 17Z, !-I G'4a-(L .

HENRY VON OESEN & ASSOCIATES
Wilmington, Consulting Engineers North Carolina OF
77i
OB FOR JOB. NO.
z 34
4
p
G2
r2
.4:7 t Z
q,1Q
r3
,��G7
13
r4-.
1.14S2'
�— .7o'
mc)
V
S.'73
o.S2.
1,77y
.8z
13,-75
).o c.
z6.og
1. 4 co
1/ ,� I, Zo FPS