SW7061002_HISTORICAL FILE_20200915

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW �011iO
DOC TYPE'
❑ CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE�a��<C�
YYYYMMDD

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
BRIAN WRENN
Director
Mr. Brian M. Alligood, Manager
121 W. 3 rd Street
Washington, NC 27889
Dear Mr. Alligood:
NORTH CAROLINA
Environmental Quality
September 15, 2020
Subject: Stormwater Permit Renewal
Stormwater Management Permit SV 7061002
Beaufort County Hospital 2007 Surgery Expansion
Washington, NC, Beaufort County
i'_/ w /2 U
A Division of Energy, Mineral, and Land Resources file review has determined that
Stormwater Permit SV 7061002 for a stormwater treatment system consisting of an
infiltration basin serving the Beaufort County Hospital 2007 Surgery Expansion located
at 628 East 12 th Street, Washington, NC expires on February 27, 2021. This is a
reminder that permit renewal applications are due 180 days prior to expiration. We do
not have a record of receiving a renewal application.
Please submit a completed permit renewal application along with a $505.00 fee for
permit renewal. Permit application forms for renewal can be found on our website at:
https://deq.nc.gov/about/divisions/energy-mineral-land-resources/energy-mineral-land-
rules/stormwa ter-program/post-construction. North Carolina General Statutes and the
Coastal Stormwater rules require that this property be covered under a stormwater
permit. Failure to maintain a permit subjects the owner to assessment of civil penalties.
If you have questions, please feel free to contact me at [phone]. 1 will be glad to
discuss this by phone or meet with you. If you would like, I can e-mail you a copy of the
application form. You can request a copy by e-mailing me at roger.thorpe(&ncdenr.gov.
Sincerely,
Roger K. Thorpe
Environmental Engineer
North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
Washington Regional Office 1 943 Washington Square Mall I Washington, North Carolina 27889
252.94b.5481

'r
i
r
Mr. Bill Bedsole, CEO
Beaufort Coylnty Hospital
628 East 12t Street
Washington, NC 27889
Dear Mr. Bedsole:
wo:Ro
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
February 27, 2007
Subject: Stormwater Permit No. SW7061002
Beaufort County Hospital — Surgery Expansion
High Density Project
Beaufort County
The Washington Regional Office received a complete Stormwater Management Permit
Application for Beaufort County Hospital -Surgery Expansion on February 22, 2007. 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. SW7061002 dated February 27, 2007, for the construction of the
subject project.
This permit shall be effective from the date of issuance until February 27, 2017, 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 Scott Vinson, or me at [phone].
S'crly,
All odge` ',—
Regional Supervisor
Surface Water Protection Section
AH/sav: C:\STORMWAT\PERMIT\SW7061002
cc: Michelle Clements, PE — The East Group
Beaufort County Building Inspections
t,-*ashington Regional Office
Central Files
North Carolina Division of Water Quality Washington Regional Office Phone [phone] FAX [phone] Customer Service
Internet:www,.ncwateraualin.ore 943 Washington Square Mall, Washington, NC 27889 1-877-623-6748
An Equal Opportunity/Affirmative Action Employer— 50% Recycled110% Post Consumer Paper
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1R-
State Stormwater Management Systems
Permit No. SW7061002
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North
Carolina as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Beaufort County Hospital
Beaufort County Hospital — Surgery Expansion
Beaufort County
FOR THE
construction, operation and maintenance of an infiltration trench 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 February 27, 2017, and shall
be subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.6 on page 3 of this permit. The stormwater control
has been designed to handle the runoff from 94,990 square feet of impervious
area. The existing soils around the trench area will be excavated, down 60 inches,
and replaced with clean sand.
3. The tract will be limited to the amount of built -upon area indicated on page 3 of this
permit, and per approved plans.
4. All stormwater collection and treatment systems must be located in either dedicated
common areas or recorded easements. The final plats for the project will be
recorded showing all such required easements, in accordance with the approved
plans.
The runoff from all built -upon area within the permitted drainage area of this project
must be directed into the permitted stormwater control system.
Page 2 of 7

State Stormwater Management Systems
Permit No. SW7061002
p
e
The following design criteria have been provided in the infiltration trench and must
be maintained at design condition:
a. Site Area, acres:
b. Drainage Area to Basin, ac:
C. Total Impervious Surfaces, ftZ:
d. Design Storm, inches:
e. Trench Dimensions, L x W x fl, ft:
f. Perforated Pipe Diameter/Length:
g: Bottom Elevation, FMSL:
h. Bypass Overflow Elevation, FMSL:
i. Permitted Storage Volume, ft3:
j. Type of Soil:
k. Expected Infiltration Rate, in/hr:
I. Seasonal High Water Table, FMSL:
m. Receiving Stream/River Basin:
n. Stream Index Number:
o. Classification of Water Body:
II. SCHEDULE OF COMPLIANCE
15.21
2:90
94,990
2.00
90x50x5
48in. / 664 ft.
17.00
22.00
15,758
Craven clay loam
5.00
14.50
Runyon Creek / Tar -Pamlico
29-3-(1)
"C; NSW"
1. The stormwater management system shall be constructed in its entirety, vegetated
and operational for its intended use prior to the construction of any built -upon
surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
3. 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 slopes and the vegetated filter..
d. Immediate repair of eroded areas.
e. Maintenance of all'slopes-in-accordance with approved plans and
specifications.
f. Debris removal and unclogging of bypass structure, infiltration media, flow
spreader, catch basins, piping and vegetated filter.
g. A clear access path to the bypass structure must be available at all times.
Page 3 of 7

State Stormwater Management Systems
Permit No. SVV7061002
4. Records of maintenance activities must be kept and made available upon request
to authorized personnel of DWQ. The records will indicate the date, activity, name
of person performing the work and what actions were taken.
5. The facilities shall be constructed as shown on the approved plans. 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.
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. A
modification may be required for those deviations.
7. The stormwater systems shall not be used as Erosion Control devices. They must
be kept off line and free from sediment until the project is complete and the entire
site has been stabilized.
8. Access to the stormwater facilities shall be maintained via appropriate easements
at all times.
The permittee shall submit to the Director and shall have received approval for
revised plans, specifications, and calculations prior to construction, for any
modification to the approved plans, including, but not limited to, those listed below:
a. Any revision to any item shown on the approved plans, including the
stormwater management measures, built -upon area, details, etc.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the
drainage area.
e. Further subdivision, acquisition, lease or sale of all or part of the project
area. The project area is defined as all property owned by the permittee, for
which Sedimentation and Erosion Control Plan approval or a CAMA Major
permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the
approved plan.
10. The permittee shall submit final site layout and grading plans for any permitted
future areas shown on the approved plans, prior to construction.
11. 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.
12. 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 i n
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.
13. This permit shall be effective from the date of issuance until February 27, 2017.
Application for permit renewal shall be submitted 180 days prior to the expiration
date of this permit and must be accompanied by the processing fee.
Page 4 of 7

State Stormwater Management Systems o
Permit No. SW7061002
III. GENERAL CONDITIONS
This permit is not transferable except after notice to and approval by the Director. In
the event of a change of ownership, or a name change, the permittee must submit
a formal permit transfer request to the Division of Water Quality, accompanied by a
completed name/ownership change form, 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 ma not be approved. The permittee is
responsible for compliance with all permit conditions until such time as the Division
approves the transfer request.
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) having 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 during normal
business hours 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.
7. Unless specified elsewhere, permanent seeding requirements for the stormwater
control must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
8. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
9. The permittee shall notify the Division of any name, ownership or mailing address
changes within 30 days.
Permit issued this the 27th day of February, 2007.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for
Division of Water Quality
By Authority of the Environmental Management Commission
Permit No. SW7061002
Page 5 of 7

ii
A
State Stormwater Management Systems
Permit No. SV 7061002
Beaufort County Hospital — Surgery Expansion
Stormwater Permit No. SVV7061002
Beaufort County
Designer's Certification
I, , as a duly registered in
the State of North Carolina, having been authorized to observe (periodically/ weekly/ full
time) the construction of the project,
(Project)
for (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
Page 6 of 7

State Stormwater Management Systems w
Permit No. SW7061002
!'
Certification Requirements:
1. The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The bypass structure weir elevation is per the approved plan.
6. The bypass structure is located per the approved plans.
7. A Trash Rack is provided on the bypass structure.
8. All slopes are grassed with permanent vegetation.
9. Vegetated slopes are no steeper than 3:1.
10. The inlets are located per the approved plans and do not cause short-
circuiting of the system.
11. The permitted amounts of surface area and/or volume have been provided.
12. All required design depths are provided.
13. All required parts of the system are provided.
14. The required system dimensions are provided per the approved plans.
cc: NCDENR-DWQ Washington Regional Office
Beaufort County Building Inspections
Page 7 of 7

H''simwwtMa 9 amij
JAN 3 0 2007
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
DWQ-WAR® Thisform may he photocopied for use as an original
I. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
Beaufort County Hospital
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Bill Bedsole, CEO Beaufort County Hospital
3. Mailing Address for person listed in item 2 above:
628 East 12" Street
City: Washington
Telephone Number:
252 1 975-4100
State: NC Zip: 27889
4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc.):
Beaufort County Hospital — Surgery Expansion
5. Location of Project (street address):
628 East 12" Street
City:
6. Directions to project (from nearest tlTdjof ii
From the intersection of US 264 and Highland
County: Beaufort
on):
o northeast 1 block on Highland Boulevard to the intersection with
East 12'h Street, turn left (west) onto East 12'h Street, the Hospital entrance is the first driveway on the right-hand side.
7. Latitude: 34032'56"N
Longitude: 77002' 18"W
8. Contact person who can answer questions about the project:
Name: Michelle Clements — The East Group Telephone Number:
IL PERMIT INFORMATION:
1. Specify whether project is (check one): x New Renewal
Form SWU-101 Version 3.99 Page l of
of project
252 1758-3746
Modification

2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit number N/A and its issue date (if known)
3. Specify the type of project (check one):
Low Density X High Density Redevelop X General Permit Other
4. Additional Project Requirements (check applicable blanks):
CAMA Major X Sedimentation/ Erosion Control 404/401 Permit _ NPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748.
Ill. PROJECT INFORMATION
1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative
(one to two pages) describing stormwater management for the project.
Stormwater runoff from the impervious areas will be be collected and piped to an infiltration trench located onsite. Grassed
lawn areas will sheet flow to the existing storm sewer system in the surrounding streets as it does now. All drainage flows to
the Runyon Creek and then to the Pamlico River. **Total project area is the total site of the Hospital complex.**
2. Stormwater runoff from this project drains to the Tar- Pamlico River basin.
3. Total Project Area: 15.21 acres 4. Project Built Upon Area: 55.7
5. How many drainage areas does the project have? I
6. Complete the following information for each drainage area. If there are more than two drainage areas in the
project, attach an additional sheet with the information for each area provided in the same format as below.
Basin Information
Drainage Area I - Total Site
Drainage Area 2 - Infiltr. Trench
Receiving Stream Name
Runyon Creek
Runyon Creek
Receiving Stream Class
C:NSW
C:NSW
Drainage Area
662,695 sf 15.21 ac
126,142 sf 2.90 ac
Existing Impervious* Area
356,502 sf 8.18 ac
82,446 sf 1.90 ac
Proposed Impervious*Area
368 861 sf 8.47 ac
94,990 sf 2.18 ac
% Impervious* Area (total)
55.7 %
75.3 %
Impervious* Surface Area
Drainage Area l
Drainage Area 2
On -site Buildings
118,677 sf
2.72 ac
49,770 sf
1.14 ac
On -site Streets
0 sf
0.00 ac
0 sf
0.00 ac
On -site Parking
247,268 sf
5.68 ac
43,680 sf
1.00 ac
On -site Sidewalks
0 sf
0.00 ac
0 sf
0.00 ac
Other on -site
1 2,916 sf
0.07 ac
1,540 sf
0.04 ac
0 sf
0.00 ac
0 sf
0.00 ac
Total: 368,861
sf (8.47 ac)
Total: 94,990
sf (2.18 ac)
* Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
Form SWU-101 Version 3.99 Page 2 of 4

How was the off -site impervious area listed above derived? N/A
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following italicized deed restrictions and protective covenants are required to be recorded for all
subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a
table listing each lot number, size and the allowable built -upon area for each lot must be provided as an
attachment.
1. The following covenants are intended to ensure ongoing compliance with state stormwater management permit number
as issued by the Division of Water Quality. These covenants may
not be changed or deleted without the consent of the State.
2. No more than Square feet of any lot shall be covered by structures or impervious materials.
Impervious materials include asphalt, gravel, concrete, brick, stone, slate or similar material but do not include wood
decking or the water surface ofswinnming pools.
3. Swales shall not be filler! in, piped, or altered except as necessary to provide driveway crossings.
4. Built -upon area in excess of the permitted amount requires a state stormwater management permit modification prior to
construction.
5. All permitted runoff from outparcels or future development shall be directed into the permitted stormwater control
system. These connections to the stormwater control system shall be performed in a manner that maintains the
integrity and perfonnance of the system as permitted.
By your signature below, you certify that the recorded deed restrictions and protective covenants for this project
shall include all the applicable items required above, that the covenants will be binding on all parties and
persons claiming under them, that they will run with the land, that the required covenants cannot be changed or
deleted without concurrence from the State, and that they will be recorded prior to the sale of any lot,
V. SUPPLEMENT FORMS "Infiltration Basin Supplement attached"
The applicable state stormwater management permit supplement form(s) listed below must be submitted for
each BMP specified for this project. Contact the Stormwater and General Permits Unit at [phone] for the
status and availability of these forms.
Form SWU-102
Wet Detention Basin Supplement
Form SWU-103
Infiltration Basin Supplement
Form SWU-104
Low Density Supplement
Form SWU-105
Curb Outlet System Supplement
Form SWU-106
Off -Site System Supplement
Form SWU-107
Underground Infiltration Trench Supplement
Form SWU-108
Neuse River Basin Supplement
Form SWU-109
Innovative Best Management Practice
Form SWU-101 Version 3.99
Page 3 of 4

VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Regional Office.
1. Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
Initials
• Original and one copy of the Stormwater Management Pen -nit Application Form C_
• One copy of the applicable Supplement Form(s) for each BMP C
• Permit application processing fee of $420 (payable to NCDENR) &-ouss 4 L400 0
• Detailed narrative description of stormwater treatment /management c_
• Two copies of plans and specifications, including:
- Development/ Project name
- Engineer and firm
- Legend
- North arrow
- Scale
- Revision number & date
- Mean high water line
- Dimensioned property/project
- Location map with named streets or NCSR numbers
- Original contours, proposed contours, spot elevations, finished floor elevations
- Details of roads, drainage features, collection systems, and stormwater control measures
- Wetlands delineated, or a note on plans that none exist
- Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations
- Drainage areas delineated
- Vegetated buffers (where required
VII. AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf, please complete this section.
Designated agent (individual or firm): The East Group, PA
Mailing Address: PO Box 7305
City: Greenville
Phone: ( 252 ) 758-3746
VIII. APPLICANT'S CERTIFICATION
NC
Zip:27835-7305
Fax: ( 252 ) 830-3954
1, (print or type name of person lister! in General Information, item 2) Bill Bedsole, CEO Beaufort County Hospital
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective coverijo++ts will be rr corded, and that the proposed project complies with the requirements of 15A
NCAC 2H.1000. /I /1
Signature:
Date: / .lJ U7
Form SWU-101 Version 3.99 Page 4 of 4

iTHE
EAST
moup
February 20, 2007
REMOtl ED Corporate Office�(/ PO Box 7305
Scott Vinson 324 s Evans St
NCDENR— DivisionofWaterQuality FEH 22/00/ 0 GreenvIle
Washington Regional Office NC 27e35
943 Washington Square Mall ,p vmveastgroupcorn
Washington, NC 27889 ®WQ— 1A/ARO Tel 252,7583746
Fax [phone]
RE: Beaufort County Hospital Surgery Expansion Stormwater Review
Permit No. SW 7 061002
Dear Mr. Vinson:
In response to your letter to Mr. Bill Bedsole of the Beaufort County Hospital dated February 14,
2007, we offer the following information to the listed items:
1. Two copies of the overall site plan with the existing contours and the drainage area for the
infiltration trench highlighted are included, as requested.
2. Language has been included in the narrative of the Stormwater Management Plan and notes
have been added to the construction plan sheets C2.0 and C4.1, concerning the excavation of
the unsuitable soils from the location of the infiltration trench and replacing it with clean sand.
The construction sequence has been updated to include information about the infiltration
trench and the need for the infiltration trench excavation and backfill material to be field verified
by a soil scientist.
3. Two copies of the Stormwater Infiltration Study performed by Land Management Group, signed
and sealed by Mr. John Williams have been included.
4. The revised plan sheets and the Stormwater Management Plan Narrative have been signed
and sealed.
If you have any questions, please contact me at 252-758-3746. Thank you.
Sincerely,
The East Group, PA
71'1 rc,Gu,t,C�
Michelle Clements
Enclosures: 2 copies of Site Plan with Infiltration Trench Drainage Area Highlighted ENGINEERING
2 copies Stormwater Infiltration Study by Land Management Group
2 copies of Revised Stormwater Management Plan Narrative
2 copies of Revised Plan Sheets C2.0 and C4.1 ARCHITECTURE
cc: Stan Hudson, Beaufort County Hospital SURVEYING
TECHNOLOGY
Since 1975, servicing clients worldwide

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STORMWATER MANAGEMENT PLAN
for
BEAUFORT COUNTY HOSPITAL
SURGERY EXPANSION
in
CITY OF WASHINGTON
BEAUFORT COUNTY
NORTH CAROLINA
Date: October 4, 2006
January 24, 2007 (Revised)
February 20, 2007 (Revised
Prepared by:
THE EAST GROUP, P.A.
324 South Evans Street
Greenville, NC 27834
[phone]
O "SINSD
FE81_
11001
DV Q
Y$p5 #
Narrative only)
Project No.: 20060122

NARRATIVE
The Beaufort County Hospital — Surgery Expansion is an addition to the existing public
institutional development of Beaufort County Hospital on their 15.21 acre campus in Beaufort
County, North Carolina. Development will include stripping topsoil, driveway and parking
demolition, construction of the building addition, drives and parking lots, water main and
gravity sanitary sewer main, and stormwater features. The project site is located in the City of
Washington at the intersection of East 12`h Street and Highland Drive. The current use of
the proposed site is existing driveways, parking lots, and building entrances of Beaufort
County Hospital. Water and sanitary sewer is provided by the City of Washington.
100% of the stormwater runoff from the site will be drained using a combination of sheet flow
and piped flow to the storm sewer system of the surrounding streets. All stormwater runoff
from the impervious areas will be collected and piped to an infiltration trench. The infiltration
trench will contain at least the first 2 inch of rainfall in a 24 hour period, because the majority
of the stormwater is directly piped to the infiltration trench. There will be an overflow outlet
provided at the inlet and outlet structures of the infiltration trench so that large storm events
bypass and do not overwhelm the system. The overflow will be directed to the storm sewer
system of the surrounding streets. The runoff from the grassed lawn area in front of the
hospital currently drains as sheet flow to the street curb and gutter along the north sides of
East 12'h Street and Highland Drive. This building addition project will continue the existing
drainage pattern. All drainage will remain unchanged for the existing site improvements that
are not within the drainage area of the underground storage pipes.
The infiltration trench is located in an area that has some unsuitable soils for infiltration.
Therefore, these unsuitable soils shall be excavated to elevation 16.5 feet, which is 60
inches below the existing ground. All material needed for backfilling the trench to the
required elevation shall be clean sand with an acceptable infiltration rate. The entire area of
the infiltration trench (50 feet by 90 feet) shall be excavated and backfilled. A soil scientist
will field verify the in -place soils and the backfill material during construction.
One drainage basin has been identified on this site. The site drains to an unnamed tributary
of Runyon Creek (Classification QNSW), which drains to the Pamlico River.
There are no riparian or wetland issues on this site.
The area disturbed during the construction of the building addition and supporting
infrastructure is 2.19 acres. The total impervious area for the addition is approximately 1.58
acres, which is 72.1% of the total area. The impervious area includes the building addition
and 0.66 acres of paved surfaces. The area of the site that will drain to the infiltration trench
is 2.90 acres. The total impervious area draining to the infiltration trench is 2.18 acres, which
is 75.3% of the drainage area.
There is not any off -site drainage that enters the drainage area of the hospital property.
Using the 10-year, 6 hour rainfall event, the pre -construction rate of runoff for the entire
15.21 acre site is calculated as 49.38 cfs and the post -construction rate of runoff is
calculated as 39.85 cfs.
Beaufort County Hospital Surgery Expansion
October 4, 2006 (Rev 2/20/07)
Page 2

Using the 1-year, 24 hour rainfall event, the pre -construction rate of runoff for the entire
15.21 acre site is calculated as 35.13 cfs and the post -construction rate of runoff is
calculated as 26.97 cfs. This is a decrease in flow. The City of Washington Stormwater
Management Program allows for an exemption from the peak flow requires as long as the
increase in flow is less than 10 percent for the 1-year, 24-hour rainfall event. Therefore there
is no need to undertake any peak flow attenuation measures in this project. However, the
storm sewer system in the street experiences periods of being overwhelmed during large
rainfall events. Installing underground infiltration pipes should help to alleviate this situation.
At this time it is not feasible to install BMPs to meet the requirement of reducing the nitrogen
loading by 30 percent and the requirement of no increase in the phosphorus loading relative
to the previous development. The nitrogen loading is less than 10 pounds/acre/year and
qualifies for the offset payment program. It is proposed to utilize the offset payment program
to meet the nutrient reduction requirements.
The predominant soil types obtained from Soil Survey for Beaufort County, North Carolina,
are:
CrA — Craven fine sandy loam, 0 to 1 percent slopes
CsC2 — Craven clay loam, 4 to 12 percent slopes, eroded
Craven fine sandy loam, 0 to 1 percent slopes soil is moderately well drained. The seasonal
high water table is 2 to 3 feet below the surface. The available water capacity is moderate,
permeability is slow, and the shrink swell potential is moderate.
Craven clay loam, 4 to 12 percent slopes, eroded soil is moderately well drained. The
seasonal high water table is 2 to 3 feet below the surface. The available water capacity is
moderate, permeability is slow, and the shrink swell potential is moderate.
Beaufort County Hospital Surgery Expansion
October 4, 2006 (Rev 2120107)
Page 3

LAND MANAGEMENT GROUP me
Environmental Consultants
February IS, 2007
Allen Henke
324 Evans Street
Greenville, NC 27858
,).Boa #
FEB 2 � 2001
DWQ
Reference: StoimwaterInfiltration Study at Beaufort County Hospital in Beaufort County, NC
Dear Allen,
Recently Land Management Group, Inc. had the pleasure of evaluating the above
mentioned pact. The purpose of the evaluation was to describe the soil profile, quantify the depth
to the seasonal high water table, and to inform the project engineer of any potential limitations of
this project. I offer the following comments.
the soils at this site are mapped as Craven soil series in the Soil Survey of Beaufort
County (1995) The seasonal high water table is normally evident by observation of
tedoximotphic features suggesting past conditions of saturation and reduction. Ihere is evidence
of redoximorphic features as shallow as <12" in both borings l & 2. LMG believes that these
features are relic from water perching on the Btl horizon and do not represent the contemporary
seasonal high water table The contemporary seasonal high water table is evident by
redoximorphic features at approximately 90" in boring # I and at approximately 1 10" in boring #
In summary, with approval from NCDENR, LMG recommends excavating the fine loams
and clays down to 60" from the current soil surface (approximately 16 5 feet elevation) and
backfilling with clean group 1 sand to install the infiltration system. The estimated infiltration
rate of the clean backfilled group I sand over the natural should be from 5-10" per hour. LMG
will be glad to assist you with pre and post construction consultations to ensure that the site is
modified in an appropriate manner. Please do not hesitate to contact me if you have any
questions with this report. I may be reached at 910-452-0001 or at [e-mail]
Sincerely,
Kurt Evers
Environmental Scientist
www.lmgroup.net • infoQlmgroup.net • Phone: [phone] • Fax: [phone]
3805 Wrightsville Ave., Suite 15, Wilmington, NC 28403 • P.O. Box 2522, Wilmington, NC 28402

Beaufort Hospital
10-11-06
Soil Profile Descriptions
Boring # 1
A
0-3
SL
I Oyr 3/2
gr, fr, ns np
Btl
3-22
SCL
10yr6/3
sbk, fi, ss, sp
Rmf'
6/2-6/8
CI
22-32
SCUCL
IOyr6/1
[Hass, vfi, s, p
Rmf
5/8
C2
32-58
LS/SCL
10yr6/4
csbk, fi, s, p
Rmf
6/8
Cl'
58-66
Sand
10yr5/6
sg, ft, ns, np
CT
66-73
Sand
10yr8/1
sg, fr, us, np
C3'
73-75
Sand/LS
I Oyr4/3
sg, fr, ns, np
C4'
75-81
Sand/LS
10yr2/2
sg, fr, ns, np
slight
organic staining
C5'
81-85
Sand/LS
10y13/4
sg, fi, ns, np
C6'
85-89
Sand/LS
IOyr6/8
sg, fi, ns, np
CT
89-94
Sand/LS
IOyr6/8
sg, fi, ns, np
Rmf
5y15/8
C8'
94-1 10 Sand
IOyr6/3
sg, fr, ns, np
Rmf
5yr5/8
Soil water perching at the Btl horizon
Actual seasonal high water table at approximately 90"
Excavate and backfill, then infiltration rate of 5-10 inches per hour
Boring #2
A
0-3
LS
10yr3/2
gr, fr, ns np
Btl
3-18
SCL
IOyr6/2
sbk, fi, ss, sp
Rmf' 6/8
Bt2
18-26
LS/SCL
IOyr6/4
sbk, fi, ss, sp
Rmf 6/1-6/8
Cl
26-32
SCUCL
10yr6/2
mass, vfi, s, p
Rmf 6/8
C2
32-42
LS/SCL
10yr6/4
mass, fr, s, p
Rmf' 6/8-6/2
C3
42-55
SCUCL
IOyr6/2
mass, vfi, s, p
Rmf 6/8
Cl'
55-65
Sand
IOyr5/6
sg, fr, ns, np
CT
65-68
Sand
10yr8/1
sg, fr, ns, np
CT
68-78
Sand
I Oyr4/3
sg, fr, ns, np
C4'
78-87
Sand
I Oyr5/4
sg, fir , ns, ❑p
C5'
87-94
Sand
10yr7/2
sg, fr, ns, np
C6'
94-110 Sand
10yr5/4
sg, fr, ns, np
Soil water perching at the Btl horizon
Actual seasonal high water table at approximately 110"
Excavate and backfill, then infiltration rate of 5-10 inches per hu

Appendix B
Published Description and Chemical and Physical Properties of the Craven Soil
Series

Official Series Description - CRAVEN Series
Page I of 5
7tiZH:rIIF[iP�LHc7:\ff����PD\RH:RY�I�
Established Serics
RAG-ENH, Rev. MHC
05/2004
CRAVEN SERIES
MLRA(s): 133A, 153A
MLRA Office Responsible: Raleigh, North Cat olina
Depth Class: very deep
Drainage Class (Agricultural): moderately well drained
Internal Free Water Occurrence: moderately deep, common
Index Surface Runoff`. negligible to very high
Permeability: slow
Landscape: Coastal Plain
Landform: Uplands
Hillslope Profile Position:
Geomorphic Component: flats
Parent Material: mature sediments
Slope: 0 to 12 percent
Elevation (type location): 20 to 100 feet
Mean Annual Air Temperature (type location): 63 degrees F.
Mean Annual Precipitation (type location): 54 inches
TAXONOMIC CLASS: F ine, mixed, subactive, thermic Aquic Hapludults
TYPICAL PEDON: Craven sill loam - cultivated (Colors are for moist soil..)
Ap--O to 7 inches; grayish brown (10YR 5/2) silt loam; weak medium granular structure; very friable;
common fine and medium toots; slightly acid; clear smooth boundary. (4 to 10 inches thick)
E--7 to 9 inches; light yellowish brown (10YR 6/4) silt loam; weak medium subangular blocky
structure; very friable; few fine and medium roots; very strongly acid; clear wavy boundary. (0 to 5
inches thick)
Bt1--9 to 12 inches; brownish yellow (IOYR 6/6) silty clay loam; moderate fine and medium subangular
blocky structure; firm; slightly sticky, slightly plastic; thin discontinuous clay films on faces of peds;
few fine and medium toots; common fine and medium pores; very strongly acid; clear wavy boundary.
Bt2--12 to 22 inches; brownish yellow (10YR 6/6) silty clay; common fine distinct yellowish red (5YR
5/8) mottles; moderate fine angular blocky structure; very firm, sticky, plastic; thin continuous clay
films on faces of peds; few fine toots; common fine pores; very strongly acid; clear wavy boundary.
Bt3--22 to .36 inches; brownish yellow (10YR 6/6) silty clay; common fine and medium distinct gray
(10YR 6/1) and common fine distinct yellowish red (5YR 5/8) mottles; moderate fine and medium
angular blocky structure; very firm, sticky, plastic; thin continuous clay films on faces of peds; few fine
pores; very strongly acid; gradual wavy boundary
http://www2 ftw.mcs.usda gov/osd/dat/C/CRAVEN.html 2/16/2007

Official Serics Description - CRAVEN Series
Page 2 of 5
Bt4--36 to 46 inches; light yellowish brown (I OYR 6/4) clay; many medium distinct gray (I OYR 6/1),
common medium distinct reddish yellow (7.5YR 6/8), and common fine distinct red (2.5YR 4/8)
mottles; weak medium angular blocky struchue; very firm, sticky, plastic; thin continuous clay films on
faces of peds; very strongly acid; gradual wavy boundary.. (Combined thickness of Bt ranges fiom 24 to
50 inches.)
BC-46 to 54 inches; gray (10YR 6/1) clay; common medium faint pale brown (10YR 6/3), common
fine and medium distinct reddish yellow (7.5YR 6/8), and common fine prominent red (2..5YR 4/8)
mottles; weak medium platy structure; very firm, sticky, plastic; very strongly acid; clear wavy
boundary (0 to 25 inches thick)
0--54 to 70 inches; brownish yellow (1 OYR 6/0) sandy loam; common lenses and pockets of sandy
clay loam; common fine faint reddish yellow (7.5YR 6/8) and few fine and medium distinct light gray
(I OYR 7/1) mottles; massive; very friable; very strongly acid; gradual wavy boundary.
C2--70 to 80 inches; brownish yellow (1 OYR 6/6) loamy sand; common fine and medium faint reddish
yellow (T5YR 6/8) and few fine and medium distinct light gray (10YR 7/1) mottles; massive; very
friable; very strongly acid..
TYPE LOCATION: Craven County, North Carolina; 4 miles northwest of Vanceboio on N C. 43; O.6
mile east on S.R.. 1644; 30 feet west of Toad in cultivated field.
RANGE IN CHARACTERISTICS:
Depth to Bedrock: Greater than 60 inches
Depth to Seasonal High Water Table: 24 to 36 inches, December to April
Rock Fragment content: 0 to 3 percent, by volume, throughout
Soil Reaction: extremely acid to strongly acid, except where limed
RANGE OF INDIVIDUAL HORIZONS:
A or Ap horizon:
Color --hue of lOYR or 2.5Y, value of to 6, and chi oma of 1 to 3
Texture (fine -earth fiaction)-- loam, silt loam, very fine sandy loam, or fine sandy loam. Eroded pedons
are clay loam, sandy clay loam or silty clay loam.
E horizon:
Color --hue of 10YR to 5Y, value of 5 to 7, and chioma of 2 to 4
Texture (fine -earth fiaction)-- loam, silt loam, very fine sandy loam, or fine sandy loam..
BE or BA horizon (if it occurs):
Color --hue of 10YR or 2 5Y, value of 4 to 7, and chioma of 3 to 8
Texture (fine -earth fraction)-- loam, clay loam, silt clay loam, or sandy clay loam,
Bt horizon (upper part):
Color--huc of 7.5YR to 15Y, value of 5 to 7, and chroma of 3 to 8
Texture (fine -earth fiaction)-- clay loam, silty clay loam, silty clay, or clay
Other features-- average clay content of the Bt horizon is 35 to 55 percent and silt plus the very fine sand
content is more than 30 percent
Bt horizon (lower part):
http://www2 ftw_nres.usda gov/osd/dat/C/CRAVEN.html 2/16/2007

Official Series Description - CRAVEN Series
Page 3 of 5
Color --hue of 7.5YR to 2..5Y, value of 5 to 7, and chroma of 3 to 8 with few to many mottles of'chtoma
2 or less or hue of I OYR or 2.5Y, value of 5 to 7, and chroma of Ito 2 with iron masses in shades of
red, yellow, and brown
Texture (fine -earth fraction)-- clay loam, silty clay loam, silty clay, or clay
Other features-- average clay content of the Bt horizon is 35 to 55 percent and silt plus the very fine sand
content is more than 30 percent
BC or BCg horizon:
Color --hue of IOYR or 2..5Y, value of'5 to 7, and chroma of 1 or 2 with mottles in shades of red, yellow,
or brown. Some pedons have BC horizons with dominant cluoma of 3 or more and many mottles of
chroma 2 or less
Texture (fine -earth fraction)-- silty clay loam, clay loam, silty clay, clay, sandy clay, or sandy clay loam
C horizon:
Color --hue of IOYR to 2.5Y, value of 5 to 7, and chroma of 1 to 6. Pedons with dominant chroma of 3
or more have many mottles of chroma 2 or less
Texture (fine -earth fraction)-- clay loam, loam, sandy clay loam, sandy loam, or loamy sand.
Redoximorphic features -- in shades of red, brown, and yellow arc in most pedons
COMPETING SERIES:
EUIonia soilshas less than 30 percent silt in the PSCS
Maubila soilshave fragments of ironstone
Nevarc soilshas a perched water table
GEOGRAPIIIC SETTING:
Landscape: Coatal Plain
Landform: Upland
Geomotphic Component: F lat
Patent Material: Marine sediments
Elevation: 20 to 100 feet
Mean Annual AirTemperatwe: 59 to 67 degrees
Mean Annual Precipitation: 40 to 60 inches
Frost Free Period:
GEOGRAPHICALLY ASSOCIATED SOILS:
Bayboro soils-- have poorer drainage and ate on lower landscape positions
Bladen soils-- have poorer drainage and are on lower landscape positions
Exum soils-- have less clay
Goldsboro soils-- have less clay
Grantham soils-- have poorer drainage and are on lower landscape positions
Leaf'soils-- have poorer drainage and ate on lower landscape positions
Lenoir soils-- have poorer drainage and are on lower landscape positions
Lynchburg soils-- have poorer drainage and are on lower landscape positions
Nahunta soils-- have poorer drainage and are on lower landscape positions
Norfolk soils-- have less clay and occur on higher, well drained landscape positions
Rains soils-- have poorer drainage and are on lower landscape positions
DRAINAGE AND PERMEABILITY:
Drainage class (Agricultural): moderately well drained
Index Surface Runoff: negligible to very high
Internal Free Water Occurrence: moderately deep, common
http://www2.ftw..rucs-usda gov/osd/dat/C/CRAVEN.html 2/16/2007

Official Series Desct iption - CRAVEN Series
Page 4 of 5
Permeability: slow
USE AND VEGETATION:
Major Uses: crops and woodland
Dominant Vegetation: Where cultivated-- corn, soybeans, tobacco, cotton, small grain, peanuts, and
pasture. Where wooded-- loblolly pine (Pinus taeda), red maple (Aces rubrum), sweetgum (Liquidambar
styraciflua), water oak (Quercus nigta), southern red oak (Quercus falcata), yellow -poplar (Luiodendro
tulipifeta), blackgum (Nyssa sylvatica), white oak (Quercus alba), post oak (Quercus stellata), American
holly (Ilex opaca), and other overstory species.. Understmy species include bitter gallbeny (Ilex glabra),
soutwood (Oxydendrum atboreum), flowering dogwood (Corpus florida), wax myrtle (Mytica cetifera),
blueberry (Vaccinium spp..), grape (Vitus spp,), Carolina jessamine (Gelsemium sempervuens), large
gallbeny (Ilex coriacea), honeysuckle (Lonicera spp ), and summersweet clethra (sweet peppetbush)
(Ciethra alnifolia)..
DISTRIBUTION AND EXTENT:
Distribution: Coastal Plain of North Carolina, South Carolina, Georgia, Virginia, and perhaps other
southern states
Extent: large
MLRA OFFICE RESPONSIBLE: Raleigh, North Carolina
SERIES ESTABLISHED: Craven County, North Carolina, 1930.
REMARKS: Newseries soils were previously mapped as...
Diagnostic horizons and soil characteristics recognized in this pedon are:
Ochric epipedon--the zone from 0 to 9 inches (Ap & E horizon)
Argillic horizon --the zone from 9 to 46 inches (Bt horizons)
Aquic conditions --the soil has tedox depletions and concentrations within the upper 24 inches of the
argillic horizon, with periodic saturation and reduction at some time during the year
Series control section --the zone fiom 0 to 60 inches
ADDITIONAL DATA: (1) This series is among Benchmark soils; characterization data at type location
exists in 877NC-49-1 and on alternate site S78NC-49-44..
(2) North Carolina State University
(a) Swelling pressure and COLE data on undisturbed B horizon samples at the type location in Craven
Co., North Carolina
Btl Bt2 130
Swelling pressure (Ibs/sq in) 108 1002 141
COLE 04 .06 .04
(b) Saturated hydraulic conductivity (K) data from 1 pedon Craven Co., North Carolina; from
undisturbed 3-inch cores collected for cooperative research by N.C.S.0 , SCS, and the Craven County
Health Department
Hot izon Depth (in) K (in /hi.)
Ap 1-4 1 88-2 16
A2 6-9 0.18-0.32
Btl 13-16 0.09-0.10
Btl 20-23 0.16
Bt2 29-32 0.14
Bt3 40-43 0 13
http://www2.ftw.mcs.usda gov/osd/dat/C/CRAVEN.htm1 2/16/2007

Official Series Description - CRAVEN Series
Page 5 of 5
Data Map Unit ID (type location): 00000
TABULAR SERIES DATA:
Soil Name Slope Airtemp FrFrr/Seas Precip Elevation
CRAVEN 0- 12 59- 64 190-240 40- 52 20- 100
FloodL F1oodH Watertable Kind Months Bedrock Hardness
NONE 2.0-3..0 APPARENT DEC -APR 60-60
Depth Texture 3-Inch No-10 Clay% -CEC-
0- 9 L FSL SIL 0- 0 95-100 7-27 -
0- 9 CL SICL SCL 0- 0 95-100 27-40 -
9-54 C SIC SICL 0- 0 95-1.00 35-60 -
54-80 CL SL LS 0- 0 95-100 5-35 -
Depth -pH- O.. M. Salin Peimeab Shnk-Swll
0- 9 3.5- 6.5 ..5-2.. 0- 0 0.2- 2.0 LOW
0- 9 3.5- 5.5 ..5-2. 0- 0 0.06- 0..2 MODERATE
9-54 3.5- 5..5 0.-0. 0- 0 0..06- 0.2 MODERATE
54-80 3.5- 5..5 0.-0. 0- 0 0.2- 6..0 LOW
National Coopeiative Soil Survey
U.S A.
http://www2 ftw.nies.usda.gov/osd/dat/C/CRAVEN.html 2/16/2007

The boundary information contained
on this map has been overlaid with
no ground control. Information as
shown Is approximate and not meant
to be absolute.. Boundary information
taken from Beaufort G I S, map.
Emommmi
SCALE 1" = 100'
Stormwater Test Location Map Land Management Group, Inc. 2004 GIS
Beaufort County Hospital Environmental Consultants
Washington, NC Wilmington, NC- Color
30-06-511 September 2006 Aerial Photo

�JaRO
Michael F. Easley, Governor
William G. Ross Jr., Secretary
rNorth Carolina Department of Environment and Natural Resources
.� Alan W. Klimek P.E. Director
Division of Water Quality
February 14, 2007
Mr. Bill Bedsole, CEO
Beaufort County Hospital
628 East 12ih Street
Washington, NC 27889
Subject: Stormwater Review SW7061002
Beaufort County Hospital — Surgical Expansion
Beaufort County
Dear Mr. Bedsole:
This office received a Coastal Stonmwater permit application and plans for the subject project on
January 30, 1007. A preliminary review of the project indicates that before a State Stormwater permit can
be issued the following additional information is needed.
I) Please submit 2 copies of an additional plan sheet that shows the existing impervious area,
located to the north of the expansion, that will drain into the infiltration trench system. These
plans need to show elevations to help determine drainage into the system and especially
elevations that will show no more additional area will drain south down into the collection
system. Please clearly delineate on the plans the drainage areas and/or drainage divide. Sheet
CO.1 shows this area to scale but does not have the needed contours and spot elevations needed.
2) According to Mr. John William's October 19, 2006 email to Mr. AIIen.Henke the plan may be to
excavate out the existing loamy material and replace with clean sand around the infiltration
system and then you could expect an infiltration rate of 5-10 inches per hour. This sounds
reasonable and I can allow it on this project, but there are no notes on the plans nor in the
narrative that this will occur. Please revise the narrative and add additional notes to plan sheets
C2 and C4.1 to direct the contractor to excavate down to "some elevation" for "some area" and
replace with clean sand. Please also note in construction sequencing that Mr. Williams or another
professional, consultant be contacted to field verify the appropriate soils and placement prior to
covering.
3) If Mr. John Williams provided the soil borings and soils information given in the narrative please
provide a signed sealed copy to verify any professional work done by others on appropriate letter
head.
4) Please remember to seal, sign & date any revised calculations and/or plans
The above requested information must be received in this office prior to February 22, 2007 or
your application will be returned as incomplete. The return of this project will necessitate resubmittal of
all required items including the application fee. If you need additional time to submit the required
information, please mail or fax your request for time extension to this office at the Letterhead
address.
Noy` Cm
vatur<
North Carolina Division of Water Quality Washington Regional Office Phone [phone] FAX [phone] Customer Service
Internet: h2o.enrstate.nc.us 943 Washiruann Square Mall. Washinmon. NC 27889 1-877-623-6749

February 14, 2007
Stormwater Review SW7061002
Beaufort County Hospital — Surgical Expansion
You should also be aware that the Stormwater Rules require that the permit be issued prior to any
development activity. Construction without a permit is a violation of 15A NCAC 2H.1000 and North
Carolina General Statute 143-215.1 and may result in civil penalties of up to $10,000 per day.
Please reference the Stormwater Project Number above on all correspondence. If you have
questions, please feel free to contact me at [phone].
Sincerely,
Scott Vinson
Environmental Engineer
Washington Regional Office
cc: Michelle Clements, PE - The East Group
Washington Regional Office

e��
NCDENR
North Carolina Department of Environment and Natural Resources
943 Washington Square Mall, Washington NC 27889 [phone] FAX [phone]
Request for Express Permit Review
FILL-IN all information below and CHECK required Permit(s).
Please include this with the application package upon submittal. Project application received after 12 noon will be
stamped in the following workday. Thank you! Lyn Hardison Iyn.hardison(a ncmail.net
APPLICANT Name Beaufort County Hospital
Company Beaufort County Hospital
Address 628 East 12th Street City/State Washington, NC Zip 27889
Phone [phone] Fax Email shudsonaa) cl oap.org
PROJECT Name Beaufort County Hospital Surgery Expansion County Beaufort
PROJECT LOCATION (ADDRESS) 628 East 12th Street
ENGINEER/CONSULTANT Michelle Clements, PE
Company The East Group, PA
Address 324 S Evans Street City/State Greenville, NC Zip 27835
Phone [phone] Fax [phone] Email michelle.clementsna eastgroup,com
State or National Environmental Policy Act (SEPA, NEPA) — EA or EIS Required []Yes ® No
❑ STREAM ORIGIN Determination; # of Stream calls; Stream Name
® STORMWATER ❑ Low Density
❑ Low Density -Curb & Gutter
PROJECT SYSTEM(S) TRIBUTARY TO
❑ High Density -Detention Pond ❑ High Density -Other
® High Density -Infiltration ❑ Off Site
_STREAM NAME RIVER BASIN
❑ COASTAL ❑ Excavation & Fill ❑ Bridges & Culverts ❑ Structures Information
MANAGEMENT ❑ Upland Development ❑ Marina Development ❑ Urban Waterfront
❑ LAND QUALITY ❑ Erosion and Sedimentation Control Plan with acres to be disturbed. CK #
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------
❑ WETLANDS (401) ❑ No Wetlands on Site (letter from COE) ❑Wetlands Delineated/No JD
❑ Greater than 0.1 AC Wetlands Impacted ❑Jurisdictional Determination has been done
❑ Less than 0.1 AC Wetlands Impacted ❑Greater than 0.5 AC Wetlands Impacted
CIRCLE Y/N: 401 Application ❑Yes ❑ No 404 Application in Process w/USCOE ❑Yes ❑ No
The legislation allows additional fees, not to exceed 50% of the original Express Review permit application
fee, to be charged for subsequent reviews due to the insufficiency of the permit applications.
CHECK# I4L�33`i For DENR use only RECEO ED
SUBMITTAL DATES: Fee Split for multiple permits:
SW I- sc--c'" $ 4CCz, — JAN 3 0 2007
CAMA $
LQS $ OWQ-WAR®
401 $
Total Fee Amount $ czc

Engineering - Architecture - Surveying -
P.O. Box 7305/324 S. Evans Street, Greenville, NC 27834
Phone [phone] Fax [phone]
LETTER OF TRANSMITTAL
Technology
To: NCDENR Date: 01/29/07 1 Proj. No.: 20060120
Division of Water Quality Attention: Lyn Hardison
943 Washington Square Mall RE: Beaufort County Hospital
Washington, NC 27889 Surgery Expansion
252-946-6481 1 D#:
We are sending you the foliowin
Shop Drawings Prints Samples
Copy of Letter Specs Payment Application
Change Order Plans X Other: Permit Application
—Copies
Date
No.
Description
2
Stormwater Management Permit Application Form
2
Underground Infiltration Trench Supplement
2
01/29/2007
Stormwater Management Plan
2
01/29/2007
Construction Plans CO. 1, C0.3, C1.0, C2.0, C4.0, & C4.1
1
01/25/2007
BCH Check #140389 $4,000.00
1
Request for Express Permit Review Form
These items are transmitted as checked below:
X For Approval Reviewed
For Your Use Reviewed as Noted
As Requested Revise & Resubmit
For Review and Comment Returned No Action
Prints returned after Loan to us
Remarks:
Co ies:
Architect:
1 Engineer:
Contractor:
RECEIVED
JAN 3 0 20V,
DWQ-WARD
Owner: Stan Hudson, Beaufort County Hospital
Other:
Other:
Signed: Allen L. Henke
T-NCDENR-Sto,,nW 012907.1DOC

It
OF W A
OtTF9QG
h r
Beaufort County Hospital
Attn: Mr. Bill Bedsole
628 East 12 th Street
Washington, NC 27889
Dear Mr. Bedsole:
Michael F. Easley, Governor
William G. Ross Jr., secretary
North Carolina Department of Environment and Natural Resources
December 27, 2006
Subject: Request for Stormwater Application
Stormwater Review SW7061002
Beaufort County Hospital
Surgery Expansion
Beaufort County
Alan W. Klimek, P.E. Director
Division of Water Quality
This office received a copy of your Sedimentation and Erosion Control Plan for the subject project
on October 2, 2006. North Carolina Administrative Code 15 NCAC 2H.1000 requires that any project that
must receive either a Sedimentation and Erosion Control Plan approval and/or a CAMA Major permit
apply for and receive a Stormwater Management Permit by the Division of Water Quality.
To obtain a Stormwater Permit you must submit a completed application, application fee of
$420.00, two sets of plans and specifications showing the proposed project and all stormwater treatment
units along with engineering calculations and a narrative description. This application package should be
received by this office prior to January 29, 2007. If an application package is not received by this date we
will consider the project incomplete. We also have an Express Permitting program. If you are interested in
this program you may contact Ms. Lyn Hardison, One Stop Permit Coordinator, at 252-948-3842.
Any development of the site prior to receipt of the required permit will constitute a violation of 15A
NCAC 21-1.1000 and North Carolina General Statute 143-215.1 and may result in appropriate enforcement
action including civil penalty assessment of up to $10,000 per day.
If you have questions, please feel free to contact me at [phone].
Sincerely, ~
„r
in e r�,�......... .. .......
William J. Moor vironmental Engineer
Washington Regional Office
cc: The East Group, PA
Be ufort County Planning/Inspections
shington Regional Office
lnlA6
Nop" Cam'
afllral
North Carolina Division of Water Quality Washington Regional Office Phone [phone] FAX [phone]
Internet h2o.encstate.nc.us 943 Washington Square Mall, Washington, NC 27889
Customer Service
1-877-623-6748

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vv�
SW7061002
.r
/v.' v)cVAov�e pWy1
Fromm.' 6. Noucl q s
FINANCIAL RESPONSIBILITY/OWNERSHIP FORM
SEDIMENTATION POLLUTION CONTROL ACT
No person may initiate any land -disturbing activity on one or more acres as covered by the Act before this
form and an acceptable erosion and sedimentation control plan have been completed and approved by the
Land Quality Section, N.C. Department of Environment and Natural Resources. (Please type or print and, if
the question is not applicable the e-mail and/or fax information unavailable, place N/A in the blank-)_
Part A. toe "4 %a;tU 1LIZ7 UEGEOVED
1. Project Name Beaufort County Hospital — Surgery Expansion OCT — 2 2006
2. Location of land -disturbing activity: County Beaufort City eFTewnshp )A9V ieitojA/A D!1
Highway/Street East 121" Street Latitude 35032'56"N Longitude 77002'18'W ,
3. Approximate date land -disturbing activity will commence: 09/2006
4. Purpose of development (residential, commercial, industrial, institutional, etc.): Institutional
5. Total acreage disturbed or uncovered (including off -site borrow and waste areas): 2.2 ac
6. Amount of fee enclosed: $ 150.00 The application fee of $50.00 per acre (rounded
up to the next acre) is assessed without a ceiling amount (Example: a 9-acre application fee is $450).
7. Has an erosion and sediment control plan been filed? Yes No Enclosed X
8. Person to contact should erosion and sediment control issues arise during land -disturbing activity:
Name Stan Hudson. Director of Plant Oper. E-mail Address shudson(a)bchosp.org
Telephone [phone] Cell # N/A Fax # N/A
9. Landowner(s) of Record (attach accompanied page to list additional owners):
Beaufort County 252-946-0079 252-946-7722
Name Telephone Fax Number
121 West 3rd Street 121 West 3`d Street
Current Mailing Address Current Street Address
Washington NC 27889 Washington NC 27889
City State Zip City State Zip
10. Deed Book No. 453 Page No. 237 Provide a copy of the most current deed.
Part B.
Person(s) or firm(s) who are financially responsible for the Ian disturbing—activity_(1
comprehensive list of all responsible parties on an attached sheet):
SEN z 9 ruu�
Beaufort Countv Hospital
Name
628 East 12'" Street
Current Mailing Address
Washington NC 27889
City State Zip
Telephone [phone]
E-mail Address nl;:f QUALITY SECTION
628 East 12'" Stree v ON REGIONAL OFFICE
Current Street Address
Washington NC 27889
City State Zip
Fax Number N/A

2. (a) If the Financially Responsible Party is not a resident of North Carolina, give name and street address
of the designated North Carolina Agent:
OF=1U,
Current Mailing Address
City
Telephone
E-mail Address
Current Street Address
Zip City
Fax Number
State Zip
(b) If the Financially Responsible Party is a Partnership or other person engaging in business under an
assumed name, attach a copy of the Certificate of Assumed Name. If the Financially Responsible
Party is a Corporation, give name and street address of the Registered Agent:
Name of Registered Agent
Current Mailing Address
City
E-mail Address
Current Street Address
State Zip City
Telephone Fax
State
The above information is true and correct to the best of my knowledge and belief and was provided
by me under oath (This form must be signed by the Financially Responsible Person if an individual
or his attorney -in -fact, or if not an individual, by an officer, director, partner, or registered agent with
the authority to execute instruments for the Financially Responsible Person). I agree to provide
corrected information should there by any change in the information provided herein.
Bill Bedsole CEO Beaufort County Hospital
Type r print nam Title or Authority
%c,&&O
ignat� Date
a Notary Public �of the -County of
State of North Carolina, hereby certify that /Li `�6-f appeared
personally before me this day and being duly sworn acknowledged that the above form was
executed by him.
Witness my hand and notarial seal, this az— day of 20A-(f--
Seal
My commission e

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RECEIVED
NOV 16 2011
DWQ-WAR®
AMENDED AND RESTATED LEASE AGREEMENT
THIS AMENDED AND RESTATED LEASE AGREEMENT (this "Lease), is made and
entered into as of thagBM day of August, 2011 (the "Effective Date") by and among the COUNTY OF
BEAUFORT (the "County'), a political subdivision of the State of North Carolina, BEAUFORT
REGIONAL HEALTH SYSTEM (the "Health System' a North Carolina hospital authority organized
under N.C. Gen. Stat. § 131E-16 at eeq., BEAUFORT COUNTY HOSPITAL ASSOCIATION, INC. (the
"Association"), a North Carolina nonprofit corporation, and BEAUFORT REGIONAL PHYSICIANS,
LLC (the "Physician Group"), a North Carolina limited liability company (collectively the County, the
Health System, the Association, and the Physician Group referred to herein as "Landlords"), and
UNIVERSITY HEALTH SYSTEMS OF EASTERN CAROLINA, INC. ("Tenant"), a North Carolina
nonprofit corporation.
WITNESSETH:
WHEREAS, the County is the owner of the land and facilities as identified by legal description,
and pictorially on Exhibit A hereto;
WHEREAS, the Health System, through the Association, is the owner and operator of an acute
care hospital facility, including certain equipment, supplies, and fixtures associated therewith, known as
Beaufort County Medical Center, located in Washington, North Carolina (the "Hospital");
WHEREAS, the County is the owner -of the land and facilities at the additional locations as
identified by legal description and pictorially on Exhibit B hereto;
a
WHEREAS, the Health System Entities (as defined heroin) are, each in their individual,
respective capacity, the lessees of the land and facilities at the additional locations identified on Exhibit C
hereto;
WHEREAS, the Health System Entities are, each in their individual, respective capacity, the
owners of the equipment, supplies, and fixtures at the locations identified on Exhibit B and Exhibit
hereto (collectively with the land and facilities identified on Exhibit B and Exhibit , referred to herein as
the "Clinics");
WHEREAS, the Association and the Physician Group are wholly owned or controlled
subsidiaries of the Health System;
WHEREAS, the County currently leesas the land and facilities identified on Exhibits A end B to
the Health System pursuant to that certain Amended Lease, dated November 30, 2010, by and between
the County and the Health System (the Health System is referred to in the Amended Lease as "Beaufort
Regional Medical Authority") (the "Hospital Authority Lease'), and the Health System, through the
Health System Entities, in turn operates the Hospital and the Clinics;
WHEREAS, the County and the Health System have determined together that it is in the best
interest of the citizens of Beaufort County, North Carolina, and the surrounding communities, that the
Health System assigk=d the County.consent to such assignment of, the Hospital Authority Lease to
Tenant, and that operation of the Hospital and the Clinics be leased to Tenant, which is a nonprofit
corporation experienced in the operation and management of hospital and other health care related
activities, and that the County's remainder interest in the property described on Exhibit A and Wibit 13
be conveyed to Tenant, at Tenant's option, upon the conclusion of the term of this Lease;

r
• r a I
HOOD RICHARDSON, P.A.
ENGINEER
LAND SURVEYING 110 WEST 2NO ST.
ENVIRONMENTAL CONSULTING WASHINGTON, INC 27889
PERMITS 252/975-3472
E-MAIL: hdChardSOn P2@2mbargm2iL00m

ASSIGNMENT AND ASSUMPTION AGREEMENT
THIS ASSIGNMENT AND ASSUMPTION AGREEMENT (this "Assignment Agreement"), is
made and entered into as of the I" day of September, 2011 (the "Effective Date") by and among the
COUNTY OF BEAUFORT (the "County"), a political subdivisionr.of the Slate or North Carolina,
BEAUFORT REGIONAL HEALTH SYSTEM (the "Health System"), a North Carolina hospital
authority organized under N.C. Gen. Stat. § 131E-16 el seq., BEAUFORT COUNTY HOSPITAL
ASSOCIATION, INC, (the "Association"), a North Carolina nonprofit corporation, and BEAUFORT
REGIONAL PHYSICIANS, LLC (the "Physician Group"), a North Carolina limited liability company,
(collectively the County, the Health System, the Association, and the Physician Group referred to herein
as the "Landlords"), and EAST CAROLINA HEALTH-BEAUFORT, INC. ("ECHB"), a North Carolina
nonprofit corporation.
WITNESSETH:
WHEREAS, the County is the owner of the land and facilities associated with the Health System
located in Washington, North Carolina;
WHEREAS, the County currently leases certain land and facilities to the Health System pursuant
to that certain Lease, dated November 30, 2010, by and between the County and the Health System (the
"Hospital Authority Lease"), and the Health System in turn owns and operates, though the Association,
an acute care hospital facility, including the equipment, supplies and fixtures associated therewith, known
as Beaufort County Medical Center (the "Hospital');
WHEREAS, the Landlords are collectively or individually the owner or lessee of the land,
facilities, equipment, supplies and fixtures at the additional locations operated by the Health System, the
Association, or the Physician Group (collectively such locations referred to herein as the "Clinics-);
WHEREAS, the Association and the Physician Group are wholly owned or controlled
subsidiaries of the Health System (collectively, the Health System, the Association, and the Physician
Group are referred to herein as the "Health System Entities");
WHEREAS, the County and the Health System have determined together that it is in the best
interest of the citizens of Beaufort County, North Carolina, and the surrounding communities that the
Health System assign, and the County consent to such assignment of, the Hospital Authority Lease to
University Health Systems of Eastern Carolina, Inc. ("Tenant") and that operation of the Hospital and the
Clinics be leased to Tenant, which is a nonprofit corporation experienced in the operation and
management of such Hospital and Clinic activities;
WHEREAS, Landlords and Tenant have entered into that certain Amended and Restated Lease
dated as of August 25, 2011 (the "Lease"; collectively with this Assignment Agreement, the "Transaction
Documents") for the purpose of effecting assignment of the Hospital Authority Lease and amending and
restating the same for purposes of leasing to Tenant the Leased Assets associated with the Hospital and
Clinic Operations, and for conveying (at Tenant's option) Landlords' remainder interest in the Leased
Assets at the conclusion of the Lease;
WHEREAS, as of even date hereof, Tenant has in turn entered into subleases with ECHB,
HealthAccess, Inc. ("HealthAccess") and UHS Physicians, LLC (" UHSP"), each a controlled affiliate of
Tenant, and has subleased, delegated or otherwise assigned to ECI1B, HealthAccess or UlISP all of its
rights and obligations under the Lease;

RECEIVED
NOV 2 9 2011
EXCLUDED LIABILITIES ESCROW AGREEMENT DWn—WARO
T ESCROW AGREEMENT, dated as of August 31, 2011 (this "Escrow Agreement"), is by
and nmo V RSTTY HEALTH SYSTEMS F ASTERN CAROLINA ("UHSEC"),
COUNT OF $EAUFORT t e ou BEAUFORT REGIONAL HEALTH SYSTEM, (the
"Health System"), BEAUFORT COU OSPITAL ASS a Association"),
BEAUFORT REGIONAL PHYSICIANS, LLC (the "Physician Group," and together with Health
System and the Association, the "Health System Entities"), and First� Citizens Bank & Trust Co., as
� y Escrow Agent hereunder ("Escrow Agent"). Cr /.3
BACKGROUND
A. UHSEC, the County, and the Health System Entities have entered into an Amended and
Restated Lease Agreement (the "Lease"), dated as of August 25, 2011, an Assignment and Assumption
Agreement, dated as of September 1, 2011 (the `:?ssignment A. —cement") and certain other related
agreements (collec 'vely, the "Transaction Documents"), pursuant to which UHSEC has agreed to lease
certain real and pe at property of the County and the Health System Entities and to operate the
Hospital and Clinics, ch as defined in the Lease.
B. The Lea provides that UHSEC shall deposit the Escrow Amount (as defined below) in
a segregated escrow accou t to be held by Escrow Agent for the p [poses of (i) insuring that funds are
available to pay certain E luded Liabilities of the County a{t'd the Health System Entities under
Paragraph 6 of the Assignm nt Agreement and (ii) indemnj�,mg UHSEC and its affiliates under
Paragraph 21 of the Lease. 7
C. Escrow Agent has Agreed to accept,
earnings thereon in accordance with Ne terms of the
D. UHSEC and the Health\
below) to represent them for all purposes
and this Escrow Agreement.
E. In order to establish the
parties hereto have entered into this Escri
ST
lid disburse the funds deposited with it and the
and this Escrow Agreement.
s have appointed the Representatives (as defined
with the funds to be deposited with Escrow Agent
of funds and to effect the provisions of the Lease, the
AGREEMENT
NOW THEREFORE, for g6od and valuable cdR
are hereby acknowledged, the7parti's hereto, for themselve
follows:
I. Definitions.ss otherwise defined
defined, shall be defined as 9d in the Lease and the
shall have the following meanings when used herein:
eration, the receipt and sufficiency of which
their successors and assigns, hereby agree as
all capitalized terms, not otherwise
lent Agreement. The following terms
"County kepresentative" shall mean the person so desi nated on Schedule A hereto or
any other person desig ated in a writing signed by the County and d vered to Escrow Agent, the
UHSEC Representatiyb, and the Health System Entities Representative in�gcordance with the notice
provisions. of this Eso4ow Agreement, to act as its representative under this Escrow Agreement.
t

e
-r,
m

-;.
address or facsimile number set forth below, or to such other address as a party may designate for itself by
like notice, and shall be deemed to have been given on the date deposited in the U.S. mail, if mailed, by
first-class, registered or certified mail, postage prepaid, addressed as set forth below, or to such other
address as a party may designate for itself by like notice.
If to UHSEC at: University Health Systems of Eastern Carolina, Inc.
2100 Stantonsburg Road
A I 1 Post Office Box 6028
Greenville, North Carolina 27835-6028
Attn: Chief Executive Officer
If to County at
O County of Beaufort
3 121 West 3rd Street
Washington, North Carolina 27889
Attn: County Manager
If to Health System Entities at:
Beaufort Regional Health System
c/o County of Beaufort
121 W. 3"' Street 021
t
Washington, North Carolina 27889
Attn: Chair of the Board of Commissioners
If to the Escrow
Agent at: First Citizens Bank & Trust Co., as EAgent
"'4*390 Six Forks Road
Attn: Trust
10. Amendment orT vec This Escrow Agreeme be changed, waived, discharged, or
terminated only by a writing signed by the Representatives and Escrow —Agent. No delay or omission by
any party igqexercising any right with respect hereto shall operate as a waiver. A waiver on any one
occasion shalhrtot be construed as a bar to, or waiver of, any right or remedy on any future occasion.
it. Severabtti To the extent any provision of this Escrow Agreement is prohibited by or
invalid under applicable law, h provision shall be ineffective to the extent o�h prohibition or
invalidity, without invalidating the mainder of such provision or the om tmng provisions of this
Escrow Agreement.
12. Governing Law. This
accordance with the internal laws of the
laws principles thereof.
shall be construed and interpreted in
a without giving effect to the conflict of
13. Entire Agoocl5ent. This Escrow Agreement constitutes entire agreement between the
parties relating to the ding, investment, and disbursement of the Escrow Fn<s and sets forth in their
entirety the obligati ns and duties of Escrow Agent with respect to the Escrow Fun .

July 26, 2007
Ernest Odei-Larbi RECO " ED
NCDENR — Division of Water Quality JUL 2 Z��)
Washington Regional Office
Washington Square Mall Washington,
®W� tWe'9RO
Washington, NC 27889 Ny
RE: Beaufort County Hospital Surgery Expansion Stormwater Modification Review
Permit No. SW 7070532
Dear Mr. Odei-Larbi:
In response to your letter to Mr. Bill Bedsole of the Beaufort County Hospital dated June
29, 2007, we offer the following information to the listed items:
1. The acreages for the On -site Parking and the Total Impervious Area listed for the
Infiltration Basin on Page 2 of the application have been corrected as requested.
2. The runoff coefficient should have been 0.15 for both the existing conditions and the
proposed conditions since this site was already developed and the grass areas were
being maintained as lawn and landscape areas. This number was taken from the
North Carolina Erosion and Sediment Control Planning and Design Manual, Appendix
Page 8.03.3. A copy of which is attached. The Spreadsheets for the Stormwater
Calculations for both the 1-year 24-hour event and the 10-year 6-hour event have
been revised to reflect this change in coefficient as well as page 3 of the Stormwater
Management Plan that stated the existing flow numbers.
3. Design calculations are provided for the riprap to be used at the outlets from the storm
sewer system into the infiltration basin. The size of the riprap is also included in the
notation on Sheet C2.0 of the construction plans.
4. The invert on Sheet C4.1 was incorrectly noted as 17.21'. It has now been corrected
to match the 17.15' as noted on Sheet C2.0. Construction Plan Sheet C4.1 has beer
attached.
5. The Latitude listed on the application was incorrectly typed. Page 1 of the application
is attached showing the corrected Latitude of 35°32'56"N.
6. The design calculations for the hydraulic grade line have been included with this letter.
Corporate Mnee
PO Box 7305
324 S Evans St
Greenville
NC 27835
vmveastgroup.com
Tel [phone]
Fax 252,830.3954
ENGINEERING
ARCHITECTURE
SURVEYING
TECHNOLOGY
Since 1975, servicing clients worldwide

Page 2
Response Letter July 26, 2007
The existing drainage system in Highland Drive is a 24-inch concrete pipe. This
system appears to only drain Highland Drive and a portion of the rear of the hospital
property. This area has been added to spreadsheet for the drainage calculations for
the pipes. It should be noted that flooding of 12`h Street currently occurs at the
entrance to the hospital and that this construction will divert some of the runoff that
previously went to 12`h Street. The infiltration basin and this project will slow down the
rate of runoff for the entire site.
If you have any questions, please contact me at 252-758-3746. Thank you.
Sincerely,
The East Group, PA
Michelle Clements
Enclosures: 2 copies of Revised Application pages 1 and 2
2 copies of Revised Stormwater Management Plan Narrative page 3
2 copies of Revised Stormwater, Riprap, and Hydraulic Grade Line Calculations
2 copies of Revised Plan Sheets C2.0 and C4.1

E MAX MAY 3 12007
N DWQ_WARQ
GROUP LETTER OF TRANSMITTAL
Engineering - Architecture - Surveying - Technology
P.O. Box 7305 / 324 S. Evans Street, Greenville, NC 27834
Phone [phone] Fax [phone]
To: NCDENR Date: 05/30/07 1 Proj. No.: 20060122
Division of Water Quality Attention: Scott Vinson
943 Washington Square Mall RE: Beaufort County Hospital
Washington, INC 27889 Surgery Expansion
252-946-6481 ID#: Modification Request
We are sending you the folio
win
Shop Drawings Prints Samples
Copy of Letter Specs Payment Application
Change Order Plans PX Other: Permit Application
Copies
Date
No.
Description
1
05/25/2007
BCH Check #143237 $420.00
2
Stormwater Management Permit Application Form
2
Infiltration Basin Supplement
2
05/24/2007
Stormwater Management Plan
2
Composite Plan of Site w/contours and Infiltration Basin Drainage Area
2
05/30/2007
Construction Plans C0.1, C0.3, C1.0, C2.0, C4.0, & C4.1
2
02/15/2007
1 Soils Investigation Report by Land Management Group
These items are transmitted as checked below:
X For Approval Reviewed
For Your Use Reviewed as Noted
As Requested Revise & Resubmit
For Review and Comment Returned No Action
Prints returned after Loan to us
Remarks: This application and supporting documents is for a modification request to
Stormwater Permit #SW7061002.
0Co lea:
X Architect:
Engineer:
Contractor:
Owner:
Other:
Other:
Signed: Allen L. Henke

OF �19
Michael F. Easley, Governor
L,
'C
Beaufort County Hospital -Surgery Expansion
Attn.: Bill Bedsole
628 East 12`s Street
Washington
NC 27889
Dear Mr. Bedsole,
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Colcen H. Sullins, Director
Division of Water Quality
June 29, 2007
Subject: Stormwater Review SW7070532
Beaufort County Hospital -Surgery Expansion
Beaufort County
This office received a Coastal Stormwater permit application and plans for the subject project on June 5,
2007. A preliminary review of the project indicates that before a State Stormwater permit can be issued the
following additional information is needed.
• Please check the convection of acre to square feet on your stormwater management application
form under basin information. 1 acre = 43560 square feet
• Please with reference to your stormwater spread sheet calculation, the runoff coefficient of grass
used for existing condition was 0.22 and that used for proposed condition was 0.15. Please explain
and attached the reference showing data for the runoff coefficient used in this calculation.
• Please provide design calculation for the riprap used in the infiltration basin and specify riprap
class/size on plan.
• Please check invert of the 24" RCP to infiltration basin on sheet C2 and C4.1. Sheet C2 has invert
as 17.15' and C4.1 has invert as 17.21'.
• Please check your latitude and longitude values on the stormwater management permit application
form. The information you provided is wrong.
• Please provide design calculation of hydraulic grade line or profile view of proposed storm sewer
system showing the hydraulic grade line.
• Please provide design calculation showing that existing storm sewer on Highland Drive can handle
the 10-yr storm event from the proposed Bypass storm sewer.
The above requested information must be received in this office prior to July 29, 2007 or your application
will be returned as incomplete. The return of this project will necessitate resubmittal of all required items including
the application fee. If you need additional time to submit the required information, please mail or fax your
request for time extension to this office at the Letterhead address.
You should also be aware that the Stormwater Rules require that the permit be issued prior to any
development activity. Construction without a permit is a violation of 15A NCAC 2H.1000 and North Carolina
General Statute 143-215.1 and may result in civil penalties of up to $10,000 per day.
Please reference the Stormwater Project Number above on all correspondence. If you have questions, please
feel free to contact me at [phone].
North Carolina Division of Water Quality Washington Regional Office Phone [phone] FAX [phone] Customer Service
Internet h2o.encstate.ac.us 943 Washington Square Mall, Washington, NC 27889 1-877-623-6748
N�O
rille,�Caro ma
a17Y
An Equal Opportunity/Affirmative Action Employer— 50% Recycled110% Post Consumer Paper

1C
cc: Michelle Clements -The East Group
Washington Regional Office
Sincerel
Ernest Odei-Larbi, E.I
Environmental Engineer
Washington Regional Office

Using the 10-year, 6 hour rainfall event, the pre -construction rate of runoff for the entire
15.21 acre site is calculated as 46.78 cfs and the post -construction rate of runoff is
calculated as 39.25 cfs.
Using the 1-year, 24 hour rainfall event, the pre -construction rate of runoff for the entire
15.21 acre site is calculated as 33.28 cfs and the post -construction rate of runoff is
calculated as 26.56 cfs. This is a decrease in flow. The City of Washington Stormwater
Management Program allows for an exemption from the peak flow requires as long as the
increase in flow is less than 10 percent for the 1-year, 24-hour rainfall event. Therefore there
is no need to undertake any peak flow attenuation measures in this project. However, the
storm sewer system in the street experiences periods of being overwhelmed during large
rainfall events. Installing an infiltration basin should help to alleviate this situation.
At this time it is not feasible to install BMPs to meet the requirement of reducing the nitrogen
loading by 30 percent and the requirement of no increase in the phosphorus loading relative
to the previous development. The nitrogen loading is less than 10 pounds/acre/year and
qualifies for the offset payment program. It is proposed to utilize the offset payment program
to meet the nutrient reduction requirements.
The predominant soil types obtained from Soil Survey for Beaufort County, North Carolina,
are:
CrA — Craven fine sandy loam, 0 to 1 percent slopes
CsC2 — Craven clay loam, 4 to 12 percent slopes, eroded
Craven fine sandy loam, 0 to 1 percent slopes soil is moderately well drained. The seasonal
high water table is 2 to 3 feet below the surface. The available water capacity is moderate,
permeability is slow, and the shrink swell potential is moderate.
Craven clay loam, 4 to 12 percent slopes, eroded soil is moderately well drained. The
seasonal high water table is 2 to 3 feet below the surface. The available water capacity is
moderate, permeability is slow, and the shrink swell potential is moderate.
Beaufort County Hospital Surgery Expansion Page 3
October 4, 2006 (Rev 07/10/07)

LMG
LAND MANAGEMENT GROUP rrrc
Environmental Consultants
February 15, 2007
Allen Henke
324 Evans Sheet
Greenville, NC 27858
MAY 3 12007
DWQ-WARD
Reference: Stormwaler Infiltration Study at Beaufort County Hospital in Beaufort County, NC
Dear Allen,
Recently Land Management Group, Inc. had the pleasure of evaluating the above
mentioned tract. The purpose of the evaluation was to describe the soil profile, quantify the depth
to the seasonal high water table, and to inform the project engineer of any potential limitations of
this project. I offer the following comments_
the soils at this site are mapped as Craven sod series in the Soil Survey of Beaufort
County (1995) The seasonal high water table is normally evident by observation of
redoximotphic features suggesting past conditions of saturation and reduction.. There is evidence
of tedoximotphic featrues as shallow as <12" in both botings I & 2. LMG believes that these
features are relic from water perching on the Btl horizon and do not represent the contemporary
seasonal high water table the contemporary seasonal high water table is evident by
redoximorphic features at approximately 90" in boring # I and at approximately 110" in boring #
2
In summary, with approval from NCDENR, LMG recommends excavating the fine loams
and clays down to 60" from the current soil surface (approximately 16,5 feet elevation) and
backfilling with clean group 1 sand to.install the infiltration system. The estimated infiltration
rate of the clean backfilled group I sand over the natural should be from 5-10" per hour. LMG
will be glad to assist you with pre and post construction consultations to ensure that the site is
modified in an appropriate marmer.. Please do not hesitate to contact me if you have any
questions with this report. I may be reached at 910-452-0001 or at kevets@lmgroup,net
Sincerely,
Kurt Evers
Environmental Scientist
www.lmgroup.net • [e-mail] • Phone: [phone] • Fax: [phone]
3805 Wrightsville Ave., Suite 15, Wilmington, NC 28403 • P.O. Box 2522, Wilmington, NC 28402

Beaufort Hospital
10-11-06
Soil.Profile Descriptions
Boring # 1
A
0-3
SL
I Oyr .3/2
gr, fi, ns rip
(�
Btl
CI
3-22
22-32
SCL
SCUCL
10yr6/3
lOyr6/l
sbk, fi, ss, sp
mass, vfi, s, p
Rmf
Rmf'
6/2-6/8
5/8
C2
32-58
LS/SCL
10yr6/4
csbk, fi, s, p
Rmf
6/8
Cl'
JA66
Sandi-
10yr5/6
sg, fi, ns, rip
66-73
Sand
10yr8/I
sg, fi, ns, up
C3'
'73-75
Sand/LS
10yr4/3
sg, fi, ns, rip
C4'
75-81
Sand/LS
IO r2/2
sg, fi, ns, rip
slight
organic staining
C5'
81-85
Sand/LS
IOyr3/4
sg, fi, ns, rip
C6'
85-89
Sand/LS
10yr6/8
sg, fr, ns, rip
CT
89-94
Sand/LS
10yr6/8
sg, fi, ns, rip
Rmf
5yr5/8
C8'
94-1 10Sand
IOyr6/3
sg, fi, ns, rip
Rmf
5yr5/8
Soil water perching at the Btl horizon
Actual seasonal high water table at approximately 90"
Excavate and backfrll, then infiltration rate of 5-10 inches per how
Bor ing #2
A
0-3
LS
10yr3/2
gr, fr, ns rip
Btl
3-18
SCL
IOyt6/2
sbk, fi, ss, sp
Rmf' 6/8
Bt2
18-26
LS/SCL
10yr6/4
sbk, fi, ss, sp
Rmf 6/1-6/8
C 1
26-32
SCUCL
10y16/2
mass, vfi, s, p
Rmf 6/8
C2
32-42
LS/SCL
10yr6/4
mass, fi, s, p
Rmf' 6/8-6/2
C3
42-55
SCUCL
10yr6/2
mass, vfi, s, p
Rmf 6/8
Cl'
55-65
Sand
IOyt5/6
sg, fi, ns, rip
CT
65-68
Sand
10yr811
sg, fr, ns, rip
C3'
68-78
Sand
I Oyr4/3
sg, fr, ns, ❑p
C4'
78-87
Sand
10yt5/4
sg, fi, ns, rip
C5'
87-94
Sand
10yr7/2
sg, fi, ns, rip
C6'
94-110 Sand
10yr5/4
sg, fr, ns, rip
Soil water perching at the Btt horizon
Actual seasonal high water table at approximately 110"
Excavate and backfill, then infiltration rate of 5-10 inches per h,

Appendix B
Published Description and Chemical and Physical Properties of the Craven Soil
Series

Official Series Description - CRAVEN Series
Page 1 of 5
LOCATION CRAVEN NC+AL GA SC VA
Established Series
RAG-ENH, Rev, MHC
05/2004
CRAVEN SERIES
MLRA(s): 13.3A, 153A
MLRA Office Responsible: Raleigh, North Carolina
Depth Class: very deep
Drainage Class (Agricultural): moderately well drained
Internal Free Water Occurrence: moderately deep, common
Index Surface Runoff: negligible to very high
Permeability: slow
Landscape: Coastal Plain
Landform: Uplands
Hillslope Profile Position:
Geomorphic Component: flats
Parent Matet ial: mat me sediments
Slope: 0 to 12 percent
Elevation (type location): 20 to 100 feet
Mean Annual Air lempetature (type location): 63 degrees R
Mean Annual Precipitation (type location): 54 inches
TAXONOMIC CLASS: Fine, mixed, subactive, thermic Aquic Hapludults
TYPICAL PEDON: Craven silt loam - cultivated. (Colors are for moist soil.)
Ap--O to inches; grayish brown (IOYR 5/2) silt loam; weak medium granular structure; very fiiable;
common fine and medium roots; slightly acid; clear smooth boundary. (4 to 10 inches thick)
E--7 to 9 inches; light yellowish brown (I OYR 6/4) silt loam; weak medium subangular blocky
structure; very friable; few fine and medium roots; very strongly acid; clear wavy boundary.. (0 to 5
inches thick)
Btl--9 to 12 inches; brownish yellow (10YR 6/6) silty clay loam; moderate fine and medium subangulai
blocky structure; firm; slightly sticky, slightly plastic; thin discontinuous clay films on faces of peds;
few fine and medium roots; common fine and medium pores; very strongly acid; clear wavy boundary.
Bt2--12 to 22 inches; brownish yellow (10YR 6/6) silty clay; common fine distinct yellowish red (5YR
5/8) mottles; moderate fine angular blocky structure; very firm, sticky, plastic; thin continuous clay
films on faces of'peds; few fine roots; common fine pores; veiy strongly acid; clear wavy boundary.
136--22 to 36 inches; brownish yellow (10YR 6/6) silty clay; common fine and medium distinct gtay
(10YR 6/1) and common fine distinct yellowish red (5YR 5/8) mottles; moderate fine and medium
angular blocky structure; very firm, sticky, plastic; thin continuous clay films on faces of peds; few fine
pores; very strongly acid; gradual wavy boundary
http:Hwww2 ftw.mcs.usda gov/osd/dat/C/CRAVEN. html 2/16/2007

Official Series Description - CRAVEN Series
Page 2 of 5
Bt4--36 to 46 inches; light yellowish brown (IOYR 6/4) clay; many medium distinct gray (IOYR 6/1),
common medium distinct reddish yellow (7.5YR 6/8), and common fine distinct red (2.5YR 4/8)
mottles; weak medium angular blocky structure; very firm, sticky, plastic; thin continuous clay films on
faces of peds; very strongly acid; gradual wavy boundary. (Combined thickness of Bt ranges from 24 to
50 inches.)
BC-46 to 54 inches; gray (10YR 6/1) clay; common medium firint pale brown (10YR 6/3), common
fine and medium distinct reddish yellow (7.5YR 6/8), and common fine prominent red (15YR 4/8)
mottles; weak medium platy structure; very firm, sticky, plastic; very strongly acid; clear wavy
boundary. (0 to 25 inches thick)
C1--54 to 70 inches; brownish yellow (10YR 6/6) sandy loam; common lenses and pockets of sandy
clay loam; common fine faint reddish yellow (7..5YR 6/8) and few fine and medium distinct light gray
(10YR 7/1) mottles; massive; very fiiable; very strongly acid; gradual wavy boundary.
C2--70 to 80 inches; brownish yellow (IOYR 6/6) loamy sand; common fine and medium faint reddish
yellow (7.5YR 6/8) and few fine and medium distinct light gray (10YR 7/1) mottles; massive; very
fiiable; very strongly acid.
TYPE LOCATION: Craven County, North Carolina; 4 miles northwest of'Vanceboro on N C_ 43; 0..6
mile east on S.R. 1644; 30 feet west of road in cultivated field.
RANGE IN CHARACTERISTICS:
Depth to Bedrock: Greater than 60 inches
Depth to Seasonal High Water Table: 24 to 36 inches, December to April
Rock Fragment content: 0 to 3 percent, by volume, throughout
Soil Reaction: extremely acid to strongly acid, except where timed
RANGE ON INDIVIDUAL HORIZONS:
A or Ap horizon:
Color --hue of 10YR or 2.5Y, value of 3 to 6, and cbtoma of l to 3
Texture (fine -earth fraction)-- loam, silt loam, very fine sandy loam, or fine sandy loam. Eroded pedons
are clay loam, sandy clay loam or silty clay loam.
E horizon:
Color --hue of 10YR to 5Y, value of 5 to 7, and cluoma of 2 to 4
Texture (fine -earth fraction)-- loam, silt loam, very fine sandy loam, or fine sandy loam.
BE or BA horizon (if it occurs):
Color --hue of IOYR or 2.5Y, value of 4 to 7, and chroma of 3 to 8
Texture (fine -earth fraction)-- loam, clay loam, silt clay loam, or sandy clay loam.
Bt her izon (upper part):
Color --hue of 7.5YR to 2.5Y, value of 5 to '7, and chroma of 3 to 8
Texture (fine -earth fraction)-- clay loam, silty clay loam, silty clay, or clay
Other features-- average clay content of the Bt horizon is 35 to 55 percent and silt plus the very fine sand
content is more than 30 percent
Bt horizon (lower part):
http://www2 f1w..mcs usda gov/osd/dat/C/CRAVEN.btml 2/16/2007

Official Series Description - CRAVEN Series Page 3 of 5
Color --hue of 7.5YR to 2.5Y, value of'5 to 7, and chroma of 3 to 8 with few to many mottles of chroma
2 or less or hue of 10YR or 2.5Y, value of 5 to 7, and chroma of I to 2 with iron masses in shades of
red, yellow, and In
Texture (fine -earth fraction)-- clay loam, silty clay loam, silty clay, or clay
Other features-- average clay content of the Bt horizon is 35 to 55 percent and silt plus the very fine sand
content is more than 30 percent
BC or BCg horizon:
Color --hue of IOYR or 2.5Y, value of 5 to 7, and cluoma of 1 or 2 with mottles in shades of'red, yellow,
or brown. Some pedons have BC horizons with dominant chroma of 3 or more and many mottles of
chi oma 2 or less
Iexture (fine -earth fiaction)-- silty clay loam, clay loam, silty clay, clay, sandy clay, or sandy clay loam
C horizon:
Color --hue of IOYR to 2.5Y, value, of 5 to 7, and chroma of l to 6. Pedons with dominant cluoma of 3
or more have many mottles of chroma 2 or less
Texture (fine -earth fiaction)-- clay loam, loam, sandy clay loam, sandy loam, or loamy sand.
Redoximorphic features -- in shades of red, brown, and yellow are in most pedons
COMPETING. SERIES:
Eulonia soilsbas less than 30 percent silt in the PSCS
Maubila soilshave fragments of ironstone
Nevarc soilshas a perched water table
GEOGRAPIRC SETTING:
Landscape: Coatal Plain
Landform: Upland
Geomotphic Component: Flat
Parent Material: Marine sediments
Elevation: 20 to 100 feet
Mean Annual Air Iemperature: 59 to 67 degree, -
Mean Annual Precipitation: 40 to 60 inches
Frost Free Period:
GEOGRAPHICALLY ASSOCIATED SOILS:
Bayboro soils-- have poorer drainage and ate on lower landscape positions
Bladen soils-- have poorer drainage and are on lower landscape positions
Exum soils-- have less clay'
Goldsboro soils-- have less clay
Grantham soils-- have poorer drainage and are on lower landscape positions
Leaf'soils-- have poorer drainage and are on lower landscape positions
Lenoir soils-- have poorer drainage and are on lower landscape positions
Lynchburg soils-- have poorer drainage and are on lower landscape positions
Nahunta soils-- have poorer drainage and are on lower landscape positions
Norfolk soils-- have less clay and occur on higher, well drained landscape positions
Rains soils-- have poorer drainage and ate on lower landscape positions
DRAINAGE AND PERMEABILITY:
Drainage class (Agricultural): moderately well drained
Index Surface Runoff: negligible to very high
Internal Free Water Occurrence: moderately deep, common
http://www2.flw..mcs.usda gov/osd/dat/C/CRAVEN.html 2/16/2007

Official Series Description - CRAVEN Series
Page 4 of 5
Permeability: slow
USE AND VEGETATION:
Major Uses: crops and woodland
Dominant Vegetation: Where cultivated-- coin, soybeans, tobacco, cotton, small grain, peanuts, and
pasture. Where wooded-- loblolly pine (Pines taeda), rod maple (Aces mbrum), sweetgum (Liquidambar
styraciflua), water oak (Quercus nigta), southern red oak (Quercus Takata), yellow -poplar (Litiodendro
tulipifera), blackgum (Nyssa sylvatica), white oak (Quercus alba), post oak (Quercus stellata), American
holly (Ilex opaca), and other overstory species. Understoty species include bitter galtbeny (Ilex glabra),
somwood (Oxydendrum arboreum), flowering dogwood (Cornus flo6da), wax myrtle (Mytica cerifera),
bhrebeny (Vaccinium spp..), grape (Vitus spp.), Carolina jessamine (Gelsemium sempetvitens), large
gallbeny (flex codacea), honeysuckle (Lonicera spp ), and summersweet clethra (sweet pepperbush)
(Clethra alnifolia)..
DISTRIBUTION AND EXTENT:
Distribution: Coastal Plain of North Carolina, South Carolina, Georgia, Virginia, and perhaps other
southern states
Extent: large
MLRA OFFICE RESPONSIBLE: Raleigh, North Carolina
SERIES ESTABLISHED: Craven County, North Carolina, 19.30.
REMARKS: Newscrics soils were previously mapped as....
Diagnostic horizons and soil characteristics recognized in this pedon are:
Ochric cpipedon--the zone from 0 to 9 inches (Ap & E horizon)
Argillic horizon --the zone from 9 to 46 inches (Bt horizons)
Aquic conditions --the soil has redox depletions and concentrations within the upper 24 inches of the
argillic horizon, with periodic saturation and reduction at some time during the year
Series control section --the zone from 0 to 60 inches
ADDITIONAL. DATA: (1) This series is among Benchmark soils; characterization data at type location
exists in S77NC-49-1 and on alternate site S78NC-49-44..
(2) North Carolina State University
(a) Swelling pressure and COLE data on undisturbed B horizon samples at the type location in Craven
Co., North Carolina
Btl Bt2130
Swelling pressure (lbs/sq in) 108 1002 141
COLE .04 .06 04
(b) Saturated hydraulic conductivity (K) data from 1 pedon Craven Co., North Carolina; fiom
undisturbed 3-inch cores collected for cooperative research by N.C.S_U , SCS, and the Craven County
Health Department
Hot izon Depth (in) K (in /hr_)
Ap 1-4 1 88-2.16
A2 6-9 0.18-0.32
Btl 1.3-16 0.09-0..10
Bt1 20-23 0.16
Bt2 29-32 0.14
130 40-43 0 13
http://www2.ftw_rocs.usda.gov/osd/dat/C/CltAVE.N_html 2/16/2007

Official Series Description - CRAVEN Series
Page 5 of 5
Data Map Unit ID (type location): 00000
TABULAR SERIES DATA:
Soil Name Slope Airtemp FrFr/Seas Precip Elevation
CRAVEN 0- 12 59- 64 190-240 40- 52 20- 100
F1oodL F1oodH Watertable Kind Months Bedrock Hardness
NONE 2..0-3-0 APPARENT DEC -APR 60-60
Depth Texture 3-Inch No-10 Clay% -CEC-
0- 9 1, FSL SIL 0- 0 95-100 7-27 -
0- 9 CL SICL SCL 0- 0 95-100 27-40 -
9-54 C SIC SICL 0- 0 95-100 35-60 -
54-BO CL SL LS 0- 0 95-100 5-35 -
Depth -pH- O-M. Salin Permeab Shnk-Swll
0- 9 3.5- 6.5 .5-2.. 0- 0 0.2- 2.0 LOW
0- 9 3..5- 5.5 .5-2. 0- 0 0.06- 0..2 MODERATE
9-54 3..5- 5.5 0.-0. 0- 0 0.06- 0.2 MODERATE
54-80 3.5- 5.5 D.-0. 0- 0 0.2- 6..0 LOW
National Cooperative Soil Survey
U.S A.
http://www2.ftw.nres usda.gov/osd/dat/C/CRAVEN.html 2/16/2007

SI
The boundary Information contained
on this map has been overlaid with
no ground control_ Information as
shown Is approximate and not meant
to be absolute, Boundary Information
taken from Beaufort G.I.S. map..
SCALE 1" = 100'
Stormwater Test Location Map Land Management Group, Inc.
Beaufort County Hospital Environmental consultants 2004 GIS
Washington, NC Wilmington, N.C. Color
30-05511 September 2006 Aerial Photo

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®THE
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SURGERY
EXPANSION
NEY iIAN
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General Grading,
Drainage, Erosion
& Sedimentation
Control Plan
C2.0

Stormwater Calculations
Project Beaufort County Hospital - Surgery Expansion
Washington, NC
Date 07/10/07
Evaluate for 1-year 24-hour storm
Existing Conditions "1
Type
Area(ac)
C factor
CA
Undeveloped land._,-.
,-0.00
0.35
0.00
Woods'';0:00
0.10
0.00
Gravel Road
- 0:00
0.60
0.00
Pavement
r' 621
0.95
5.90
Buildings
1.97
i`:
0.95
1.87
Grass
r7.03
0.15
1.05
Lot Coverage
i 0:00
0.40
0.00
Marsh
0.60
0.10
0.00
Total 15.21 8.83
Composite C factor 0.58
Overland sheet flow use manning's kinematic solution
Tc = .007'(nL)A.8/(P2A.5 SAA)
CAROB ,/,,
=0e. FESS/0 •�29%
�co
Mannings n
Flow length
�rs675:00'
1-Year 24 Hr Rainfall r -'3'50 From City of Washington Stormwater Management Program
�x
Land Slope, S, ft/ft
- 21;
Tc, hr =
0.19
Tc, min =
11.68 thus i = is v. {3;77�From formula I = 127(22+Tc)
Q=CiA
Q=
33.28 cfs
Proposed Conditions
Type
Area(ac)
C factor
CA
Undeveloped Land
. 0.00
0.35
0.00
Open Space
-%,0:00
0.30
0.00
Woods
.0.00
0.10
0.00
Grass
" .6.91
0.15
1.04
Gravel Road
000
0.60
0.00
Pavement/Sidewalk
6:68
0.95
5.30
Building
' 2'72
0.95
2.58
Lot Coverage
0:00
0.40
0.00
Marsh
0.00
0.10
0.00
Total
15.21
8.92
Composite C factor
0.59
Overland sheet flow use manning's kinematic solution
Tc = .007'(nL)A.8/(P24.5 SA A)
Mannings n
0.030
Flow length
950.00
1-Year 24 Hr Rainfall
3.50
Land Slope, S, ft/ft
6.010
Tc, hr =
0.34
Tc, min =
20.66 thus i =
Q=CiA
4=
26.56 cfs
From City of Washington Stormwater Management Program
2.98 From formula I = 1271(22+Tc)
Requirement is zero increase in flow
Job No. 20060122

Storinw61te00 ICU latiOtlS' ''9__"L, * ef``
s r
Project Beaufort County Hospital - Surgery Expansion
Washington, NC
Date 07/10/07
Evaluate for 10-year storm
Existlflil
Type
Undeveloped land
Area(ac)
C factor
0.35
CA
0.00
K'awnn
Woods
0.00
0.10
0.00
Gravel Road
0:00
0.60
0.00
Pavement
r.
':,•
6e21
0.95
5.90
Buildings
.97
0.95
1.87
Grass
':'•'A°:
7.03
0.15
1.05
Lot Coverage
0.00
0.40
0.00
Marsh
�.
0.00
0.10
0.00
Total 15.21 8.83
Composite C factor 0.58
Overland sheet flow use manning's kinematic solution
Tc = .007'(nL)A.8/(P2A.5 SAA)
Manning s n
Flow length
10-Year 6 Hr Rainfall
N0.021
Land Slope, S, ft/ft
Tc, hr =
0.17
Tc, min =
10.30 thus i From IDF Curve
Q=CiA
Q=
46.78 cfs
Type
Undeveloped Landt�2.7-2
Area(ac)
C factor CA
0.35 0.00
Open Space
0.30 0.00
Grass
0.15 1.04
Gravel Road
0.60 0.00
Pavement/Sidewalk
0.95 5.30
Building
0.95 2.58
Lot Coverage
0.40 0.00
Marsh
0.10 0.00
Total 15.21 8.92
Composite C factor 0.59
Overland sheet flow use manning's kinematic solution
Tc = .007'(nQ) .8/(P2A.5 SAA)
Mannings n
Flow length
10-Year 6 Hr Rainfall
Land Slope, S, ft/ft
To, hr = 0.30
Tc, min = 18.22 thus i = 4.40 From IDF Curve
Q=CiA
4= 39.25 cfs

PIPE
STORM DRAINAGE CALCULATION
SHEET
SUBDIVISION DEVELOPMENT
RATIONAL METHOD
SUBDIVISION NAME: IBeaufort County Hospital - Sua
nsion
DATE:
1 7/9/20071 1
1 1
I I I I
I I
I
I
CONTRIBUTING ACREAGE
I 110 YR. STORM
I
RPONT
T I
IFMOVVi'l
,
E i
E
E IN REM
C , ACCUM. I AVAIL.
E
MANNING$' PIPE
'
OUTLET
IMPERV. R GRASS NAT RAL
U
WEI HTED TIM 1T FR
G E OF C OM
TOTAL E INTENSITY
FLOW, i FLOW :SLOPE ,
PIPE SIZE E SIZE
VELOCITYI
POINT
C=_.95 I5 C=_.15; C=.2
TOTAL CxA CONE. 1 P.1.ES
TC in/hr.
CFS CFS fVR
REQUIRED ,CHOSEN
_fps
<GBI3&;<CB21
0.87 S1!5211�224L'
3.76 Ii-f201
6---- 6.290;�0:007,
76.OS41S121
Kim�C82�
�DI2�
�Oy76�;�0:00 t0.04�It0.00�
�Y--M. 3761I_
4.84_A
1 147;�0:010
15.813�i12j
_
MY141♦y=Yl3�
�0:01
---------0.--
001 �0331+i1221
_ ---R
1551�7�201�__
-----7.436
0072+ 0072y�0015
2573F�6�
___ _8.488
0366
�YIi3��DI2��002
+�000��0'02�t000�
�000 �002�,�000=
_
002_�0911S1r551!
_
246 i7�201:
0138 0210,�0020
Bt
0602
------ ^-----------
___- - _
--------------- .----•------------- ------
___ ___
------- -
.....2--4.'RI --
------.L ----•
---m;
-------«
------7.552'�--
__-
-----8.718
�ftDH�;�Db2�
_______________________
I
�0519�I�O:OO� �O.00�y�0.00m
wO'�
__-______.-__--_-___ _________ _ _
4-
0.78 �0!801;57!341'
__________-_--_______________
R- 01f
2.14 i�7E201�
__---____- ________ _
1 3191 1.319�0:016
_-__«1.31-•=0.
�Dt2�I�DIU�
�0:01� �0:00� �0:04�:�0:00�
0.02 �t!2511�2!461
3.71 1�7f201
_.____________t__________
0.1301 9.095 �0:012(
____ - --
16.481'�15
-------_ ___-
7.412
,�
--------------
&RD2i;WDIi4i
�OH3�;t0- �0.00�I�0.00�
0.72 �0!7.7 L'S1!201T
7.911�7E201I
0.8801 O.B80;�0:030
5.7811�6
4.482
_______________________
�DIU�ItJB{tg
__-____--_______-___
MO.OB�I�O:OO�it0:07�;�0:00�
iiii
________________.______________________
0.08 �2!811y�3!7.11
____-_.__«-________1L__-___--_____________._________
6.52 I�6!301_
0.495; 10.471:�0:004
-______161
_-------_____-
5.925
�RD:3�ItJB{1�
�0.O7�rt0:00�i�0.00�;�0100�
0.07 �0!351;�0:861
7.21
0.513;t0:064
__---2L348-S---_
____________ __________
;i7d20p
_-_
_____0.513;
_ _ _-___-__ _____-__
4.095F�6_L
-------22.93 Ijlll
2.611
`7 6.215
, -
_
�,�:�,�
_
_-_______._ _ __-_-.-____
1111�
------«--__--_-_---_
------------
___-________«---________-.-___________
------------------------ _
_____________._______--__1--
E
_
ORD'5=;WJ82M
�0:00!•�0.00!•��0:00 �
=0:24=;=0:00=�0.0aw.-mo
r
0.27 0!28 � 1.89
� I S 1
0.00
2.17 ! 7.20'
� I 1
1.926; 1.9261 08
t0. 5
7
6.3 91�10
3.531
---5517
�JB'2�ID2in.5Wc
_-----__ ____
�0:00�1�0100!♦ �0.00!♦;�0:00�
m
t0}1 �1III' U651
._ __, _
0.00 �2514L510.011
--r---_--_._ ---
12.15 1�5ASll
2.15 I�5'051
___________- ___-___-__
0.646; 1.9261t0.095
0.6--- 74- 0:003
6.247,�8
_______-_______
25.676I�24
4.722
D�aia'Struci lbNG,Basin
�0:00I♦1�0:00��0:01�'1�0:001♦
- -
000-�057��5125151T
-
12.72T�5:001
----
0010T 74.8457t0:0041
24.569I�24
1 4.725
-
�I�
- -
D2in-----fJB'3
--- --
- ;�
�0.00'0:001♦1�0:00�;�0.00m
--------------------------- -----------
0.00 !!W061'5126151
---
14.21 '�4!851'
r - -
--
0.000' 10.705'�0:0041
21.526'�24
-
- ---
-------------
_ - 3:d08
tJB3�I�Fx!CB�
=O.00=;=O:OO=iMO.00�jt0.00m
0.00 �0:82D_�14211
-
15.03 ;�4.801
0.0001 10.705I�0:0]3,
-________-r_________________________
17.23--
___________________________
_ 3408
---- -- ---- --- - -
MY611♦iMYl'Q�
- - - - -
=0:01 �;�0:00�':.t0:03�;�0:00�
-
0.02 �0'4.11 �0.391
--- --- -----
0.80]�Z.201
----- -
0.1 t6; 0116; -----
f - - -- -I
27061�6
0.592
�V62�'Intlu,Basih
�0.00�•�O:OO�it0.01 ='�0.00�
_ 0.00 �O---- t0----
__ L2- •�-!---
0.017' 0.127'�0.030
2.799•�--
0.364
HiafilantlSC�Ex�CB�
�now-.1�0:00!♦____________ _--._-.______
_______-_-__--_----_-______- ----------------------
-
-__________-«____-_______.____________
-___-______-_--.__--_______
______________
TOTAL AREA
4.61
0.00 1.52
0
GRAND TOTAL
6.14
I
I
I
I
I
I
Key
Definition
Unit
Calculated Value
Q= M
O=Discha e, cubic feet
per second
cubic fUsecontl
Entered Value
c=Runoff coefficient
Chart SD-3
i=lntesity of ainfall, inches per hour
Chart SD-2,then
Chart SD-1
inches/hr
A=Drain a basin area, acres
acres
Page 1

PIPE (2" event)
STORM DRAINAGE CALCULATION SHEET
SUBDIVISION DEVELOPMENT
RATIONAL METHOD
SUBDIVISION NAME: I Beaufort Country Hospital- Surgery_ Expansion
DATE:
1 7/9/20071 1
1 1
7�I
I I
I I
CONTRIBUTING ACREAGE
I I 12-I0HSTORM
INLET ROUTLET
IMPERV.,1COVER GRASS, .NATURAL,
II
WEIGHTED TIMNCF;TPIFFROM TOTAL ',1INTEIN
INCREM.SN
Lop
FLOWACES
FCPS
PIPE
'REESRED,GHSIZE
M--
VELOCITY
POINT
-
C _95 j C-.45 ; C-.15 G-.2
------------+-----------{--------------
TOTAL C x A CO
------'-"-'------'---------r-----------------......>-----------
-------- - - + } 1
'IS
fUftE
------------r---------+-----------
-------
- - ------------
+
--- --p----
-2.2
�CB_3�T<CBL2�
�0!84f♦;�0100��0:50�;�0_001♦
____________ _ _ _ ___
_
__ __ 0.87- S7!521;12!24f 3.78 ;i2:0011
_ _______ _______-__-_ _________ __
747153: 1.747153 111--
1.747153; 7.747153;�0:007„
9.93046628;�12
____________
2.2245395
4539-
___________ _
�CB'2���DI2�
�0516�1�0100�;�0I04�;t0100�
0.16 S-!----- !Z61i_-__-4_84 ��2001j
2.0656347�0.010�9.78148918
�72
2.6300402
�VI4�IELVI3IR
W0'02=:=0!00=i=00211�;M0001W
_ -
001 �0331512211 155 �2001�
-0.31848�
0.019961 0.019981 t0015'159157606
�6
_
07018602
�VI3�T�DI¢�
=0102�;�0:00�:�0:02=;M0!00!♦
�OI911;S1!551� 2.48
--0.03843;
- _- _--0.02 �i2:001�
0.058391;t0102012.25525587;�8
0.1672767.
11111IRDG1111111711111111IDI211111
M0579� �O:OO=Yt0:00=.,iiw.00=
0.18 ! 2.14 �2
8391 03�1!34
03 t0;016I4.67148878
�fii-7
8660706
SDI0.02
2� SDIL1�
+�{�{�{��
�0 01� �0 00� t0 04� �0 00�
_ ___
0 02 5l�251 �2 461 3.71 ��2 001�
0 036077 2 526492 �0 012
F +�
10 1943079 �15I
{!-tj
2 0587662
---------------
�RD2� �DILt�
It0:08 �0 00� �0 00� �0 00�
- - 0.12 �Or711 iP2011 1 91 l2001
0 244479 0 244479 �0 030
3 57594034 �6
1.2451178
�DIL1�;�JBL1�
�0:0------ OO�i 0:01 0:00
.� . �1� �
0.08 2.81 1 3.71 6
� t � , It .52 ;�2�.001
0.157231 � 2.928202'1�01004
13.23881641�18
1.6570198
__________i__-___--___
_ _ _ _ _
1______________'
ORD;31;WJ0{1M
10!07M1I0:001♦0:00�1�000�
____
0.07 SO!3511�0'861� 1.21 �2:001
0.142413. 0.142413•t0.064
2.53327357'�6
1 _____________
0.7253006
_-___-___--__
�JBf11;�J8@M
_ _ _ ___
�OI00�;�0.00)♦ �OI001•1�0:00�
_________ _ _ __ _______ ___-__--_.--_
__ _______0.00 _�3:491 :�6!521 70.01 ,l2f001
_ ______-
0; 3.079615,Itt�DI003
______--_____,___.___,__.________
14.223592i�18
1.7376087
�RD:4�;fJB'2�
�0!28�It0:001♦ 0:001♦��0:00�
0.27 5------ 2.17 :l2.001
0 5; 0.5349751�0:085
3.94565335I-10j
0.9808552
--_----_11!: WJ _----_
IRD:S�;lJBr2�
fJB@l♦TD2in Stru
__________________________________
1�0!241♦It1K0:00�a�D:ODi�D:00�
10:001•t0.001•:m0!00m•Li0:001
_________ ________,____________.___ ________._________.____
_t------
_ 0.23- ----- ;S------ 1.96 a2:'001
0.00 �25141 510:011� 12.15
__-____._____.__._-__�
-----
------ 17; 0.534975;�0:095
0; 4.140565+�0:003
---__ __--_A___--__-___
3.86------ �8
______________
___ __________
1.5325862
1.3179796
;�2:'001
_15.9709863�124
Drein.SWcC!Inftti.Basib
=O:OO=;t0:00!♦=0:07=;t0:00=
0.00 �0!57/IS125151I 12.72 ;12:001
0.003
24
1.3192219
Dreinstru tJB'3�
___________._____-________._____________.--------------
moloomimo:00mm0!oom;m0:oom
{______________ _____________{___.__.___-__
---------------- ____________.____________.--___-__-___.--------------
0.00 �2.06,M12M514 14.21 �2.001
_ _ _ - _ _ _F______-_______
______
0: 4.144467:111 4
_____________t___________.r_________._
______________ ___________
15.0808048;�24
{
______________
1.3192219
tJe!31'�E1C8�
�0:00�•�0:00��0!00�•<01001♦
OAO �0!821;51:4!211 15.03 •i2!001
0 4.144467•t0I073
12.0732001•i24
1.3192219
jjjVIUW..jKVF21♦
jg0:01jjj1�0:00� t0I03�;�0:00)♦
0--- �0-----�------ 0.80 ;i2:001
0.0323; 0.0323T�0!030
1.67398705;�8
0.1645038
�VP2)♦1fbfilV,Basiu
=0:00�1�0:00w=0!01�1m0100m
0.00 �0.'471;0!801; 1.21
_____________�___________..._______.___
...
___«___________
TOTAL AREA
2.05
0.00 0.66
0
GRAND TOTAL
2.72
I
Definitionl
Unit
Calculated ValueN"Q=1O=Dischar
e, wbic feet per second
cubicff/second
Entered Valuec=Runoff
coetfrJent
Chart SD-3
i=lntesity of rainfall, inches per hour
inches/hr
Chart SD-2,
then Chart SD-1
IA=Draina a basin area, acres I lacres
Page 1

HYDRAULIC GRADE LINE CALCULATIONS
Beaufort County Hospital - Surgery Expansion
9-Jul-07
1
2 3 4 5 6
7
8
9
10
11
12
13
14 15 16
17
18
19
20
21
22
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EGL,
EGL.
HGL
TOC
Station
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9+18+19
20-7
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r�„'�?lMAW Mal k..._...,:..._'?
:1111s fi'1&':
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!;Z17:60tia24!kG10i402€eSf98iP&;i/3.41C1!
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0.09
!•0.67431
0.99
.............
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0.50
!i'&1?00%ffi7!00F!7!OOi
0.50
0.09 !
17.78
! 17.96 i
17.78
21.40
Drainage.Struct
__.,i,..............i..........._......._.._................_...............,............................................_..F..._............................._......._......._.................:......_...........•.........................._._.........................................r........._...................__...........
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0.181
0.00
0.09
i10:8202=.
1.18
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0.50
i4$1!00®iffi7!OO1;W00Fi
0.59
0.11 !
19.43
: 19.63 :
19.45 s
23.00
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.. ......
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..........,.........
._.
wi
..._................._..........
..
_
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.. ...... _
..
.... ......
_
.....
...
Infiltration Basin
i4iF0 n7!
�: ! '
................................................................P..e...._._E,i........._............_.................i....._..........5aFas................._.
Drainage_Struct._;1018,859:1M24�
614,857 Sffi76 9'4.73'�,
0.347
0.00 :
0.06
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0.00
i 1.00F
1.00
iffi1!001 ffi7!OOF ffi7 AO I
0.00
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JB_2!r518!91524A!L14r844!g�80!@!!!4?725;
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0.60 !
0.21
19.26
! 19.76
19.41
25.10
JB 1
.........................................._.............................................................._.:...................................._........._......-........................................._........................,.
!s518.821 Fli185S :10:98:! 152' !. 622 "i
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0.601
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1.42
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0.42
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i 20.87
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20.27 !
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20.85
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0.546
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1.12
!IOi8121;
...
1.23
ir�`.1!OOta:
0.50
ffi1!001ffi7!OOF!fi!OOF!
0.61 !
0.34
19.84
! 21.2920.7521.72
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2127
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...
W�' 4OpenG S 8 t , rE t
_..............._.
.........
+ s+#;:!
...
,: ?'E
.oB I
....... _
.............
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VI2
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a20'S7-. i•#8i'#Od3.�s 30;.i036m:
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0.005
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001 10:9048'
154
Tqi OOiti
042
9, �1'00+'.F%VO0,J 100.-1
065
0.00
2131
2132
2731
2480
3,a Entered Value
Calculated Value

/r
BEAUFORT COUNT'
wmmm
DQAINA(IF
PIPE
Su5A26AS
bNcsW� .bkiuE
D�ev

Appendices
Solving for Time of Concentration
Kinematic Wave Theory
Length of overland flow:
Manning's "n" surface:
Average watershed slope:
Constant alpha:
Constant "m":
Trial Time of Rainfall Calculated Time
Duration Intensity of Concentration
Tr (minutes) i (inches/hour) Tc (minutes)
' 5„
aT08
6.67
t�.�_-,.�a�,1.N � 1�
aw2w
WO
7.30
x . .:rr
RI -
RIME!'
- 117 78a '
�
7.81
r15...«
r.
3+0 ry
�
- =P� i
8.89
SS�a{3��i1 ihi''3r+'Y'.7tuib'i1
60 1 hho r)� ...
� yn.�L1F.�i
ZM25k�
10.56
1 0 (2iho ru RN,
1,011 '1
13.03
t'G'<4'? 7tR[%FSyg. Fs b
E Az `%t'd5ieY AiLin
'5
80 (3thour�s) j fi
000w�,.,,.M..
0595;
14.91
.
�360((%hours}
f�0 9I'v.�
14.72
20 {+12,hours)
z�0 39 :s
22.49
144021 hdt rTs
"
�� 0 21
27.27
_r.
Table 8.03a Enter the Rainfall Intensity Values for the corresponding Times of Duration
from the Intensity Duration Frequency Tables. Calculate Tc for each Rainfall Intensity.
Select the rainfall Intensity that corresponds to the longest Trial Time of Duration that is
equal to or less than the calculated Time of Concentration. In this example, the 5-minute
Trial Time of Duration is less than the corresponding Calculated Time of Concentration of
6.67 minutes. Therefore use a Rainfall Intensity of 7.08 inches/hour.
Rev. 6/06 8.03.3

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Beaufort County Hospital Surgery Expansion
Time of Concentration
INLET POINT
CB 3
CB2
YI 4
YI 3
RD 1
DI 2
RD 2
DI 1
RD 3
JB 1
RD 4
RD 5
JB 2
Drain Struct
Drain Struct
JB 3
YI 1
YI 2
OUTLET POINT
CB2
DI 2
YI 3
DI 2
DI 2
DI 1
DI 1
JB 1
JB 1
JB 2
JB 2
JB 2
Drain Struct
Infiltr Basin
JB 3
Ex. CB
YI 2
Infiltr Basin
SUB -BASIN
LENGTH (FT)
[L]
76
60
16
68
52
80
60
132
35
152
30
10
80
16
ELEV.
DIFFERENCE
(FT) [H]
0.50
0.60
0.24
1.36
0.84
0.96
1.80
0.53
2.24
0.46
2.55
0.95
0.24
0.06
88
0.35
48
0.63
30
0.90
30
0.90
SUB -BASIN
SLOPE
0.0066
0.0100
0.0150
0.0200
0.0162
0.0120
0.0300
0.0040
0.0640
0.0030
0.0850
0.0950
0.0030
0.0038
Tc
1.52
1.08
0.33
0.91
0.80
1.25
0.71
2.81
0.35
3.49
0.28
0.11
2.14
0.57
0.0040 2.06
0.0131 0.82
0.0300 0.41
0.0300 0.41
Area A
CB2
245
6.10
0.0249
2.24
Area B
CB 1
140
1.50
0.0107
2.01
Area C
YI 4
56
0.35
0.0063
1.22
Area D
YI 3
30
3.30
0.1100
0.25
Area E
DI
34
0.40
0.0118
0.65
Area F
RD 1
115
2.40
0.0209
1.34
Area G
RD 2
100
2.08
0.0208
1.20
Area H
DI 1
75
1.34
0.0179
1.02
Area I
RD 3
65
1.35
0.0208
0.86
Area J
RD 4
180
3.75
0.0208
1.89
Area K
RD 5
175
3.65
0.0209
1.85
Area L
Drain Structure
20
1.30
0.0650
0.22
Area M
YI 1
35
1.68
0.0480
0.39
Area N
YI 2
35
1.98
0.0566
0.36
Highland Street
Ex CB
1050
11.70
0.0111
9.35
Tc =((L3 x H)o.385) /128

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