HomeMy WebLinkAboutSW8090528_HISTORICAL FILE_20090723STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 CA062`6
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
Zoc)C 123
YYYYMMDD
®0A
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
July 23, 2009
Mr. Edward L. Wills, Jr, Plant General Manager
Carolina Power and Light Co. D/B/A Progress Engery Carolinas, Inc.
8470 River Road SE
Southport, NC 28461
Subject: Stormwater Management Permit No. SW8 090528
Brunswick Nuclear Plant - Unit 1 Capacitor Bank Installation
High Density Commercial Sand Filter Project
Brunswick County
Dear Mr. Wills:
Dee Freeman
Secretary
The Wilmington Regional Office received a complete Stormwater Management Permit
Application for Brunswick Nuclear Plant - Unit 1 Capacitor Bank Installation on July 17, 2009.
Staff review of the plans and specifications has determined that the project, as proposed, will
comply with the Stormwater Regulations set forth in Session Law 2008-211 and Title 15A NCAC
21-1.1000. We are forwarding Permit No. SW8 090528, dated July 23, 2009, for the construction
of the subject project.
This permit shall be effective from the date of issuance until July 23, 2019, 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
Christine Nelson, or me at (910) 796-7215.
Sincerely,
Ge'orgette Scott
Stormwater Supervisor
Division of Water Quality
GDS/can: S:\WQS\STORMWATER\PERMIT\090528.ju109
cc: Michael Hanson, Dewberry & Davis, Inc.
Marty McGowan, Environmental Supervisor, Progress Energy Carolinas, Inc
Brunswick County Inspections
Brunswick County Engineering
Christine Nelson
Wilmington Regional Office
Central Files
Wilmington Regional Office
127 Cardinal Drive Extension, Wilmington, North Carolina 28405 One
Phone: 910-796-7215 \ FAX: 910-350-2004 \ Customer Service: 1-877-623-6748 NorthCarol i na
Internee. v .nmatem liry.org Naturally
An Equal Opportunity \ Affirmative Action Employer
State Stormwater Management Systems
Permit No. SW8 090528
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
Edward L. Wills, Jr., Plant General Manager & Carolina Power and Light Co. D/B/A
Progress Energy Carolinas, Inc.
Brunswick Nuclear Plant - Unit 1 Capacitor Bank Installation
8470 River Road SE, Southport, Brunswick County
FOR THE
construction, operation and maintenance of one sand filter in compliance with Session
Law 2008-211 and the provisions of 15A NCAC 2H .1000 (hereafter collectively 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 July 23, 2019 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 1.9 of this permit. The stormwater control has been
designed to handle the runoff from 34,848 square feet of impervious area. Other
incidental impervious area (4,792 square feet) has been approved for the
driveway access and will be treated through grassed swales.
3. A vegetated filter has been waived for this sand filter since it has been designed
to handle twice the design storm as detailed in Section 1.8 on page 3.
4. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
5. 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.
Page 2 of 8
State Stormwater Management Systems
Permit No. SW8 090528
(.1
rl
9
0
The runoff from all built -upon area within the permitted drainage area of this
project must be directed into the permitted stormwater control system.
The project shall maintain a 50' wide buffer measured from the normal pool of
impoundments, the banks of rivers and streams and the mean high water line of
tidal waters.
All runoff being directed into wetlands shall flow into and through those wetlands
at a non -erosive velocity.
The following design elements have been approved for this sand filter stormwater
facility, and must be provided in the system at all times.
a. Drainage Area, acres:
Onsite, ft2:
Offsite, ft2:
b. Total Impervious Surfaces, ft2:
C. Design Storm, inches:
d. Sediment Chamber Depth, ft.:
e. Sand Chamber Depth (weir to bottom) ft:
f. Filter Media Depth, ft.:
g. Sediment Chamber Bottom Elev. fmsl:
h. Sand Chamber Bottom Elev., fmsl:
i. Sediment Chamber Surface Area, ft2:
j. Sand Chamber Surface Area, ft2:
k. Weir Elevation, fmsl:
I. Max. Head on Filter (weir to top of sand) ft:
m. Permitted Storage Volume, ft3:
n. Orifice Diameter, inches:
o. Time to Draw Down, hours:
p. Seasonal High Water Table, FMSL:
q. Receiving Stream / River Basin:
r. Stream Index Number:
S. Classification of Water Body:
II. SCHEDULE OF COMPLIANCE
1.2
52,272
0
34,848
3.0
3.15
3.15
2.0
20.15
20.15
2,250
4,500
23.3
1.30'
8,775
6 " 0
11.4
18.15
Nancy's Creek / Cape Fear
18-88-1-3
"Sc, HQW, Sw"
No person or other legal entity shall alter the approved stormater management
system, or fill in, alter, or pipe any drainage feature, including swales, shown on
the approved plans as part of the stormwater management system, unless and
until the permittee submits a modification to the permit and receives approval
from the Division.
The permittee is responsible for verifying that the proposed built -upon area for
the entire project does not exceed the allowable built -upon area.
The Director may notify the permittee when the permitted site does not meet one
or more of the minimum requirements of the permit. Within the time frame
specified in the notice, the permittee shall submit a written time schedule to the
Director for modifying the site to meet minimum requirements. The permittee
shall provide copies of revised plans and certification in writing to the Director
that the changes have been made.
4. 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.
Page 3 of 8
State Stormwater Management Systems
Permit No. SW8 090528
5. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately. Infiltration systems should not be used
as erosion control devices, due to the potential clogging. If the stormwater
system was used as an Erosion Control device, it must be restored to design
condition prior to operation as a stormwater treatment device, and prior to
occupancy of the facility.
6. 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 the approved plans, regardless of size.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area.
e. Further subdivision, acquisition, 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.
7. The Director may determine that other revisions to the project should require a
modification to the permit.
8. 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.
9. The permittee shall at all times provide the operation and maintenance
necessary to assure that all components of the permitted stormwater system
function at optimum efficiency. The approved Operation and Maintenance Plan
must be followed in its entirety and maintenance must occur at the scheduled
intervals including, but not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and revegetation of side slopes.
d. Immediate repair of eroded areas.
e. Maintenance of side slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of filter media, bypass structures, orifice
catch basins and piping.
g. Access to all components of the system must be available at all times.
10. 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.
11. Permanent seeding requirements for the stormwater control must follow the
guidelines established in the North Carolina Erosion and Sediment Control
Planning and Design Manual.
Page 4 of 8
State Stormwater Management Systems
Permit No. SW8 090528
12. Prior transfer of the permit, the stormwater facilities will be inspected by DWQ
personnel. The facility must be in compliance with all permit conditions. Any
items not in compliance must be repaired or replaced to design condition prior to
the transfer. Records of maintenance activities performed to date will be
required.
13. 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.
14. Built upon area includes, but is not limited to, structures, asphalt, concrete,
gravel, brick, stone, slate, coquina and parking areas, but does not include
raised, open wood decking, or the water surface of swimming pools.
III. GENERAL CONDITIONS
This permit is not transferable to any person or entity except after notice to and
approval by the Director. In the event there is either a desire for the facilities to
change ownership, or there is a name change of the Permittee, a completed
"Name/Ownership Change Form" must be submitted to the Division of Water
Quality signed by both parties involved, accompanied by the appropriate
documentation as listed on page 2 of the form. The project must be in good
standing with DWQ. The approval of this request will be considered on its merits
and may or may not be approved.
2. The permittee is responsible for compliance with all of the terms and conditions
of this permit until such time as the Director approves the transfer request.
Neither the sale of the project area in whole or in part, nor the transfer of
common area to a third party, constitutes an approved permit transfer.
3. 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.
4. The issuance of this permit does not preclude the Permittee from complying with
any and all statutes, rules, regulations, or ordinances which may be imposed by
other government agencies (local, state, and federal) which have jurisdiction.
In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action,
including those as may be required by this Division, such as the construction of
additional or replacement stormwater management systems.
The permit may be modified, revoked and reissued or terminated for cause. The
filing of a request for a permit modification, revocation and reissuance or
termination does not stay any permit condition.
Permittee grants permission to staff of the DWQ to access the property for the
purposes of inspecting the stormwater facilities during normal business hours.
The permittee shall notify the Division in writing of any name, ownership or
mailing address changes at least 30 days prior to making such changes.
Page 5 of 8
State Stormwater Management Systems
Permit No. SW8 090528
9. 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.
Permit issued this the 23rd day of July, 2009.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
r ColeeryjH.Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Page 6 of 8
State Stormwater Management Systems
Permit No. SW8 090528
Brunswick Nuclear Plant - Unit 1 Capacitor Bank Installation Page 1 of 2
Stormwater Permit No. SW8 090528
Brunswick 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 are a part of this Certification.
Noted deviations from approved plans and specifications:
Signature
Registration Number
Date
SEAL
Page 7 of 8
State Stormwater Management Systems
Permit No. SW8 090528
Certification Requirements:
Page 2 of 2
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 sand filter elevations are per the approved plan.
6. The. sand filter is located per the approved plans.
7. A trash rack is provided on the outlet/bypass structure.
8. For open -bottom sand filters, 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. Required drawdown devices are correctly sized and located per the
approved plans.
13. All permitted design depths are provided.
14. All required parts of the system are provided, such as a vegetated shelf, a
forebay, and the vegetated filter.
15. The permitted dimensions of the system are provided, per the approved
plan.
cc: NCDENR-DWQ Regional Office
Brunswick County Building Inspections
Page 8 of 8
-
d DWQ,USE ONLYJP�
Date Received
Fee Paid
Permit Number
11 Ca -o`
ooc - i-
(C
1
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION -FORM
This form may be photocopied for use as an original R fig 4
JUN 2 2009
I. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
Carolina Power and Light Co. D/B/A Progress Energy Carolinas, Inc.
2.. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Edward L. Wills, Tr. - Plant General Manager
3. Mailing Address for person listed in item 2 above:
8470 River Road SE
City:Southport State:NC Zip:28461
Phone: (910 ) 457-3691
Email:ed.wills@12gnmail.com
Fax: ( )
4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
Brunswick Nuclear Plant Unit 1 Capacitor Bank Installation
5. Location of Project (street address):
City:Southport County:Brunswick Zip:28461
6. Directions to project (from nearest major intersection):
Intersection of Highway 87 and 113 South, approximately 3750 FT to entrance of property.
7. Latitude:33° 57 38" N Longitude:78' 00' 39" W of project
8. Contact person who can answer questions about the project:
Name:Steve Cahoon Telephone Number: (919 ) 546-7457
Email:steve.cahoon@pgnmail.com
II. PERMIT INFORMATION:
1. Specify whether project is (check one):
❑Renewal ❑Modification
Form SWU-101 Version 09.25.08 PaV 1 of 4
2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit number and its issue date (if known)
3. Specify the type of project (check one):
❑Low Density ®High Density ❑Redevelop ❑General Permit ❑Universal SMP ❑Other
4. Additional Project Requirements (check applicable blanks; information on required state permits can be
obtained by contacting the Customer Service Center at 1-877-623-6748):
❑CAMA Major ®Sedimentation/Erosion Control ❑404/401 Permit ❑NPDES Industrial r' -• ` 7 ,
Storrnwater JUPi ? 1 2009
III. 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.
Forebay to sand filter (BMP) to a level spreader. Flow from the project site will be diverted to the forebay and
sand filter and outlet to a level spreader for diffused flow.
2. Stormwater runoff from this project drains to the Cal2e Fear River basin.
3. Total Property Area: 2.03 acres 4. Total Coastal Wetlands Area: 0 acres
5. Total Property Area (3) - Total Coastal Wetlands Area (4) = Total Project Area'*:1.20 acres
6. (Total Impervious Area / Total Project Area) X 100 = Project Built Upon Area (BUA)'.Y6 `IS
7. How many drainage areas does the project have?2
8. 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.
For high density projects, co m lete the table with one drainage area for each engineered stormwater device.
,Basin Information ;:'.,';
Drainage Area/ '
Drainage Area/
Receiving Stream Name
Nancy's Creek
C 0] P 0 4
Stream Class & Index No.
SC, HQW,UW4f7SW 1 q _gg_
3 �G a) 54)
Total Drainage Area (so
52,272 (see narrative)
On -site Drainage Area (sf)
52,272
Off -site Drainage Area (so
0
Existing Impervious* Area (so
0
6
Proposed Impervious*Area (sf)
34,848 sf - includes BMP and forebay
4792 sf - driveway apron from
DA E
% Impervious* Area (total)
67%
'_q a , r
Im ervious� Surface Area
;,' Drainage Area 1,
I Drainage Area' 2
On -site Buildings (so
0
On -site Streets (so
0
On -site Parking (so
0
On -site Sidewalks (so
0
Other on -site (so
34,848 (includes BMP and forebay)
4792 sf - driveway apron from DA G
and DAH
Off -site (so
0
MZ;
Form SWU-101 Version 09.25.08 Page 2 of 4
Total (so:
34,848 sf (0.80 ac) (combined total
(compensatory treatment provided
treated in BMP
in BMP
Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
'Total project area shall be calculated to exclude Coastal Wetlands from use when calculating the built upon area
percentage calculation. This is the area used to calculate overall percent project built upon area (BUA).
9. How was the off -site impervious area listed above derived?N/A
Projects in Union County: Contact the DWQ Central Office staff to check to see if you project is located
within a Threatened & Endangered Species watershed that may be subject to more stringent,-stormwater
requirements. "' 1_ o
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS JUN 2 2009
One of the following property restrictions and protective covenants are required to be e orded=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.
Forms can be downloaded from hUp://h2o.enr.state.nc.us/su/bml2 forms.htm - deed restrictions.
Form DRPC-1
High Density Commercial Subdivisions
Form DRPC-2
High Density Developments with Outparcels
Form DRPC-3
High Density Residential Subdivisions
Form DRPC4
Low Density Commercial Subdivisions
Form DRPC-5
Low Density Residential Subdivisions
Form DRPC-6
Low Density Residential Subdivisions with Curb Outlets
By your signature below, you certify that the recorded property restrictions and protective covenants for this
project shall include all the applicable items required in the above form, 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 NC DWQ and that they will be recorded prior to
the sale of any lot.
V. SUPPLEMENT FORMS
The applicable state stormwater management permit supplement form(s) listed below must be submitted for each
BMP specified for this project. Contact the Stormwater Permitting Unit at (919) 807-6300 for the status and
availability of these forms. Forms can be downloaded from htto://h2o.enr.state.nc.us/su/bml2forms.htm.
Form SW401-Low Density
Low Density Supplement
Form SW401-Curb Outlet System
Curb Outlet System Supplement
Form SW401-Off-Site System
Off -Site System Supplement
Form SW401-Wet Detention Basin
Wet Detention Basin Supplement
Form SW401-Infiltration Basin
Infiltration Basin Supplement
Form SW401-Infiltration Trench
Underground Infiltration Trench Supplement
Form SW401-Bioretention Cell
Form SW401-Level Spreader
Form SW401-Wetland
Form SW401-Grassed Swale
Form SW401-Sand Filter
Bioretention Cell Supplement
Level Spreader/Filter Strip/Restored Riparian Buffer Supplement
Constructed Wetland Supplement
Grassed Swale Supplement
Sand Filter Supplement
Form SWU-101 Version 09.25.08 Page 3 of 4
Form SW401-Permeable Pavement
Form SW401-Cistern
Permeable Pavement Supplement
Cistern Supplement
JUN 2 2009
---7.
Form SWU-101 Version 09.25.08 Page 4 of 4
VI. SUBMITTAL REQUIREMENTS
JUN .?, 200P
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 Office. (Appropriate office may be found by locating project on the
interactive online map at httn://h2o.enr.state.nc.us/su/msi mans.htm)
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 Permit Application Form 7�1�
• Original and one copy of the Deed Restrictions & Protective Covenants Form (if ti/.4
required as per Part IV above) �/
• Original of the applicable Supplement Form(s) and O&M agreement(s) for each BMP T VK�
• Permit application processing fee of $505 (Express: $4,000 for HD, $2,000 for LD)
payable to NCDENR
• Calculations & detailed narrative description of stormwater treatment/management
• Copy of any applicable soils report
• Two copies of plans and specifications (sealed, signed & dated), including:
- Development/Project name
- Engineer and firm
- Legend
- North arrow
- Scale
- Revision number & date
Mean high water line
Dimensioned property/project boundary
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)
VIL AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf (such as additional information requests), please complete this section. (ex. designing engineer or firm)
Designated agent (individual or firm): �J A
Mailing Address:
City: Sta
Phone: ( 1 Fax:
Email
VIII.APPLICANT'S CERTIFICATION
I, (print or type name of person listed in General Information, item 2) ju')a v J �. 01 1 (5 q r .
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 covenants will be recorded, and that the proposed project complies with the requirements of 15A
NCAC 2H .100n. / _
Date: l0 • /.D• C?
FormSWU-101 Version09.25.08 Page 5of4
TRANSMISSION VERIFICATION REPORT
TIME
: 07/24/2009 09:46
NAME
: NCDENR
FAX
: 9103502016
TEL
: 9107967215
DATE,TIME
07/24 09:44
FAX NO./NAME
919198819923
DURATION
00:02:38
PAGE(S)
09
RESULT
OK
MODE
STANDARD
ECM
State of North Carolina
Department of Environment and Natural Resources
Wilmington Regional Office
Beverly Eaves perdue, Governor
FAX COVER SHEET
Dee Freeman, Secretary
Date: �, ^�� No. Pages (excl. cover): g
Express Permitting
To: From: Sandra Exum
Co: w Phone 9(_1—Q),7 6-726� 5
Fax: — Fax: (910) 350-2004
Re f7K
Hard Cogy to follow
i 127 Cq*dinal Drivc Extension, Wilmington, NC 2")5 a (910) 7%-7215 a An Equal Opportunity Affiro'muve Action Employer
TRANSMISSION VERIFICATION REPORT
TIME : 07/24/2009 09:51
NAME : NCDENR
FAX : 9103502018
TEL : 9107967215
DATE,TIME
07/24 09:48
FAX NO./NAME
94573321
DURATION
00:02:39
PAGE(S)
09
RESULT
OK
MODE
STANDARD
ECM
state of 1,4or►n a,um Ur --
Department of Environment and 14%tural Resources
Wilmington Regional Office
.Beverly Eaves perdue, Governor FAX COVER SHEET
Date:
aTo:
Co:
Fax:
Hard Com to follow
Dee Freeman, Secretary
No. Pages (e,ccl. cover):
Express Permitting
From: Sandra Exum
Phone LOJ 796-7265
Fax: (91fD_350?004-
127 Cardinai Drivc Extension. Wilmington, NC 29405 • (910) 796-721 5 • An Equal Opportunity AlNrrnative Action Employer
`f
Nelson, Christine
From: Russell, F. Virginia [fvrussell@Dewberry.com]
Sent: Wednesday, July 22, 2009 2:53 PM
To: Nelson, Christine
Cc: Hanson, Michael; steve.cahoon@pgnmail.com
Subject: RE: request for additional info: SW Project No. 090528 Unit 1 Capacitor Bank
Christine,
The spreadsheet in Appendix E on page 7 was not changed because this page shows an approximate volume
representation that relies on trends to establish the best fit line for the stage storage volume in the BMP. For this
spreadsheet, you must represent a volume below the actual volume available.
This volume accumulation is ignored in the routing calculations, page 8. The variables Zi and Zo shown in the blue box
on page 8 establish the beginning elevation of the available storage in the BMP. The value here is changed to 22.15. All
volumes below this elevation are ignored in routing.
If you have any questions please feel free to give me a call.
Thanks.
Virginia
Virginia Russell, El, LEE[®AP
Civil Designer
Dewberry
2301 Rexwoods Drive
Suite 200
Raleigh, NC 27607
919-881,9939
919-881-9923 fax
www.dewberrv.com
From: Nelson, Christine[mailto:christine.nelson@ncdenr.gov]
Sent: Wednesday, July 22, 2009 11:38 AM
To: Russell, F. Virginia
Subject: RE: request for additional info: SW Project No. 090528 Unit 1 Capacitor Bank
Virginia,
I do have question for you regarding the additional information submitted for this project. I'm looking that the new
sand filter calculations and am a bit confused about one of the pages. In particular, the one I am look at is 716 page of
Appendix E. This page includes a table with the incremental contours, surface areas, and volumes. I noticed the
contours start at 21.5 with volume of water accumulating at an elevation of 22. Should this table have been updated to
reflect the new elevations?
Thanks,
Christine
Christine Nelson
State Stormwater Program - Express Permitting
NC Division of Water Quality
Wilmington Regional Office
910-796-7323
E-mail correspondence to and from this address may he subject to the North
Carolina Public Records Law and maybe disclosed to third parries.
From: Nelson, Christine
Sent: Friday, July 17, 2009 8:38 AM
To: 'Russell, F. Virginia'
Subject: RE: request for additional info: SW Project No. 090528 Unit 1 Capacitor Bank
Great! I will keep an eye out for it. Thanks for the heads up.
Christine
From: Russell, F. Virginia [mailto:fvrussell@Dewberry.com]
Sent: Friday, July 17, 2009 8:08 AM
To: Nelson, Christine
Cc: Russell, Janet; Jones, III, Reuben; steve.cahoon@pgnmai!.com; marty.mcgowan@pgnmail.com
Subject: RE: request for additional info: SW Project No. 090528 Unit 1 Capacitor Bank
Christine,
We have completed your request for additional information and placed the package in the mail. You should receive it
this morning.
Please feel free to give me a call should you have any questions.
Thanks,
Virginia
Virginia Russell, El, LEED® AP
Civil Designer
Dewberry
2301 Rexwoods Drive
Suite 200
Raleigh, NC 27607
919-881-9939
919-881-9923 fax
www.dewberrv.com
From: Nelson, Christine[mailto:christine.nelson@ncdenr.gov]
Sent: Friday, July 10, 2009 8:45 AM
To: ed.wills@pgnmail.com; steve.cahoon@pgnmail.com; marty.mcgowan@pgnmail.com; Russell, F. Virginia
Cc: Russell, Janet
Subject: request for additional info: SW Project No. 090528 Unit 1 Capacitor Bank
All,
I have attached a pdf version of my request for additional information for Stormwater Project S W8 090528 —
Brunswick Nuclear Plant Unit 1 Capacitor Bank Installation. I will also send copies via mail. Please let me
know if you have any questions.
Thank you,
Christine
Christine Nelson
It Dewberry
July 16, 2009
Ms. Christine Nelson
Environmental Engineer
Division of Water Quality
Wilmington Regional Office
127 Cardinal Drive Extension
Wilmington NC, 28401
2301 Rexwoods Drive 919,891,9939
Suite 200 919,881,9923 fax
Raleigh, NC 27607 www.de.lV"Y.0,m
'Art, J U L 17 2009
Reference: Brunswick Nuclear Plant Unit 1 Capacitor Bank Express Review
Revisions - Stormwater Application No SW8 090528
Dear Ms. Nelson:
Please find the following responses to your "Request for Additional Information' dated July 10, 2009 on
the above referenced project:
Comment I:
The boring locations identified on pan sheet C-2 along with the SI-IWT depths identified in the report
from LMG dated January 12, 2009 do not appear to support the SHWT elevation being 2 feet below the
bottom of the sediment chamber and the sand filter.
It appears that only boring 20 was used to determine the SHWT elevation. However, borings 18 and 19
also coincide with location of the sediment chamber and sand filter and both of these borings appear to
have a SHWT separation of less than 2 ft from the proposed bottom elevations. Please verify that a 2 foot
separation between the SHWT elevation and the bottom of the sediment chamber and sand filter has been
provided.
Response: The borings labeled "SHWL" on sheet C-2 were incorrectly labeled. The previously identified
locations were boring locations for structural analysis. The actual SHWT, boring locations have been
added to sheet C-2 and sheet C-9. The corresponding SHWL has been added to the profile on sheet C-9.
The environmental report identifies SHWL at 3 locations (borings 18, 19 and 20). In order to alleviate
any concern, we have revised the calculations based on boring #18 which identifies the most conservative
SHWL at elevation 18.15'. The elevation previously used was 18.0' as identified by boring #19.
Revisions have been made to the project plans to reflect the new elevations. A 2ft separation has been
provided below both the bottom of the sediment forebay and the sand filter.
Comment 2:
Please provide calculations for the level spreaders supporting the information in the supplements,
especially for the level spreader associated with drainage area C.
Response: Calculations for the permanent level spreaders have been added as Appendix L. Also, level
spreader supplement form and sand filter supplement have been revised. Both Appendix L and the
revised Appendix D have been provided.
Dewberry & Davis, Inc.
2301 Rexwoods Drive 919.881.9939
Suite 200 919.881.9923 fax
Dewberry*
yv Raleigh, NC 27607 www.Aewlxrry.com
n n 1 7 2009
Continent 3:
Please include the forebay berm elevation on the plans. According to the weir calculations for the sand
filter, it appears that the forebay berm elevation is 23.3 ft.
Response: The forebay bean elevation has been added to sheets C-3 and C-9 (23.3').
Comment 4:
The sand filter drainage area map appears to include areas to the south-east side of the sand -filter that is
not draining to the 13MP. Please verify that the drainage area map is accurate.
Response: All areas on the drainage area ntatp drain to Nancy's creek. Area E on sheet C-4 drains to an
existing stornnvater drainage piping system and outfalls to the existing ditch on site. Revised drainage
area maps C-2 and C-4 have been provided.
Comment 5:
Please submit a $500 fee for the additional review required for this application. .
Response: A check for $500 has been provided.
For your review we have enclosed the following:
• Appendix D — Revised Level Spreader and Sand Filter Supplement Forms
• Appendix E — Revised Sand Filter Calculations
• Appendix L— Level Spreader Calculations
• 'Three (3) sets of revised project plans (C-2, C-3, C-4, C-6, & C-9)
• Additional Review Fee of $500.00
Please feel free to give me a call should you have any questions or need any additional information.
Sincerely,
Dewberry & Davis, Inc.
Virginia Russell, EI, LEEP AP
Civil Designer
P:A.50017875VAdmVCorrespondenceAla hers\20D9.07.15 - Revised Slormwater Hermit Package Cover Uaer.docx
Dewberry & Davis, Inc.
_r
rf NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
July 10, 2009
Mr. Edward L. Wills, Jr, Plant General Manager
Carolina Power and Light Co. D/B/A Progress Energy Carolinas, Inc.
8470 River Road SE
Southport, NC 28461
Subject: Request for Additional Information
Stormwater Project No. SW8 090528
Brunswick Nuclear Plant Unit 1 Capacitor Bank Installation
Brunswick County
Dear Mr. Wills:
Dee Freeman
Secretary
The Wilmington Regional Office received an Express Stormwater Management Permit
Application for Brunswick Nuclear Plant Unit 1 Capacitor Bank Installation on June 24,
2009. A preliminary review of that information has determined that the application is not
complete. The following information is needed to continue the stormwater review:
The boring locations identified on plan sheet C-2 along with the SHWT depths
identified in the report from LMG dated January 12, 2009 do not appear to
support the SHWT elevation being 2 feet below the bottom of the sediment
chamber and the sand filter.
It appears that only Boring 20 was used to determine the SHWT elevation.
However, Borings 18 and 19 also appear to coincide with location of the
sediment chamber and sand filter and both of these borings appear to have
SHWT separation of less than 2 ft from the proposed bottom elevations.
Please verify that a 2 foot separation between the SHWT elevation and the
bottom of the sediment chamber and sand filter has been provided.
2. Please provide calculations for the level spreaders supporting the information in
the supplements, especially for the level spreader associated with drainage
area C.
Please include the forebay berm elevation on the plans. According to the weir
calculations for the sand filter, it appears that the forebay berm elevation is 23.
ft.
4. The sand filter drainage area map appears to include areas to the south-east
side of the sand filter that is not draining to the BMP. Please verify that the
drainage area map is accurate.
5. Please submit a $500 fee for the additional review required for this application.
Please note that this request for additional information is in response to a preliminary
review. The requested information should be received in this Office r to July 20,
2009, or the application will be returned as incomplete. The return of, a project will
necessitate resubmittal of all required items, including the application fee.
Wilmington Regional Office
127 Cardinal Drive Extension, Wilmington, North Carolina 29405 e *TO
Phone: 910-796-7215 1 FAX: 910-350-20041 Customer Service: 1-877-623-6748 lv aiolinaa.
Internet: www.nmaterquality.org Naturallff
An Equal ODponunity 1 Alfumalive Action Employer
Mr. Edward L. Wills, Jr.
July 10, 2009
Stormwater Application No. SW8 090528
If you need additional time to submit the information, please email or fax your request
for a time extension to the Division at the address and fax number at the bottom of this
letter. Please note that a second significant request for additional information may result
in the return of the project. If the project is returned, you will need to reschedule the
project through the Express coordinator for the next available review date, and resubmit
all of the required items, including the application fee.
The construction of any impervious surfaces, other than a construction entrance under
an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and
is subject to enforcement action pursuant to NCGS 143-215.6A.
Please label all packages and cover letters as "Express" and reference the project
name and State assigned project number on all correspondence. If you have any
questions concerning this matter please feel free to call me at (910) 796-7323 or email
me at christine.nelson@ncdenr.gov.
Sincerely, jp(
C" goaQ
Christine Nelson
Environmental Engineer
GDS/can: S:\WQS\STORMWATERWDDINFO\2009\090528.ju109
cc: Steve Cahoon, Carolina Power and Light Co. D/B/A Progress Energy Carolinas, Inc.
Michael Hanson, Dewberry & Davis, Inc.
Christine Nelson
Wilmington Regional Office
Page 2 of 2
Nelson, Christine
From: Nelson, Christine
Sent: Friday, July 10, 2009 8:45 AM
To: 'ed.wills@pgnmail.com'; 'steve.cahoon@pgnmail.com'; 'marty.mcgowan@pgnmail.com';
'fvrussell@dewberry. com'
Cc: Russell, Janet
Ti--grinfo`SW Project.No. 090528 Unit-1-Capacitor-Bank
quesfoad
Attachments: 090U iu109.pdf
All,
I have attached a pdf version of my request for additional information for Stormwater Project SW8 090528 —
Brunswick Nuclear Plant Unit l Capacitor Bank Installation. I will also send copies awes m Please let me
know if you have any questions.
Thank you,
Christine
Christine Nelson
State Stormwater Program - 8xpress Permitting
NC Division of Water Quality
Wilmington Regional Office
910-796-7323
Before printing this email, please consider your budget and the environment.
If you must print, please print only what you need.
E-mail correspondence to and from this address nary be subject to the North
Carolina Public Records Law and may be discloser( to third parties.
Brunswick Nuclear Plant Unit 1
Capacitor Bank Installation
NCDENR — Division of Water Quality
Stormwater Management Permit Package
June 12, 2009
Prepared For:
Progress Energy Carolinas, Inc.
100 East Davis Street
TPP 18
Raleigh, NC 27601
Prepared By:
Dewberry & Davis, Inc.
2301 Rexwoods Drive
Suite 200
Raleigh, NC 27607
Brunswick Nuclear Plant Unit 1
Capacitor Bank Installation
NCDENR — Division of Water Quality
Stormwater Management Permit Package
June 12, 2009
Prepared For:
Progress Energy Carolinas, Inc.
100 East Davis Street
TPP 18
Raleigh, NC 27601
Prepared By:
Dewberry & Davis, Inc.
2301 Rexwoods Drive
Suite 200
Raleigh, NC 27607
�J\\� CAROB
30 24
7s'
��Q �O
iA
T 1
S.%1F1i 1
Table of Contents JU\� 2 200n
Stormwater Narrative
ProjectDescription.....................................................................................................................I
ExistingSite Conditions..............................................................................................................I
SoilCharacteristics.....................................................................................................................I
Storm water Management............................................................................................................ I
Summary of Stormwater Flow Rates....................................................................:.......................2
List of Appendices
Appendix A - Express Review Program Stormwater Management Application Form
Appendix B - Checklist
Appendix C - Inspection and Maintenance Agreements - Sand Filter (Form 1) & Level Spreader
(Form 2)
Appendix D - Sand Filter (Form 1) & Level Spreader Supplement Forms (Form 2)
Appendix E - Sand Filter Calculations
Appendix F - Underdrain Calculations
Appendix G - Drainage Area Maps
Appendix H - USGS Map and Soils Map
Appendix I - Subsurface Exploration Report
Appendix J - Natural Resource Investigation Report
Appendix K - Specifications
A?fir a,x L- Le,, -A 5t q,&r
JUN 2 � 200
Project Description
The project is located at the Brunswick Nuclear Plant, Township of Smithville, Brunswick County, North
Carolina. The site is located off Highway 87 northeast of Southport, North Carolina. Progress Energy
Carolinas, Inc. (PEC) is going to install two (2) 230kV capacitor banks at the Brunswick Nuclear Plant.
The capacitor banks will each require a new circuit breaker, which will be located inside the existing
switchyard fence. The Brunswick Nuclear Plant contains 2,920 acres of which a total of 3.13 acres will be
disturbed due to the construction activities. The 3.13 acres is divided into two (2) smaller sites, A and B.
Site A has a disturbed site area of 2.03 acres and is under review by NCDENR Land Quality for an
Erosion and Sedimentation Control Permit. Of the 2.03 acres site area, only 1.20 acres (drainage area)
drain to the BMP. The remaining 0.83 acres will primarily be grassed and the stormwater runoff will
return to the original flow pattern.
Site B has a disturbed area of 1.10 acres. The new construction of this site includes resurfacing of an
existing gravel lot. No new impervious surface will be created. The area drains to an existing stormwater
treatment facility and therefore does not require a stormwater permit. The area is under review by
NCDENR Land Quality for an Erosion and Sediment Control Permit.
The Brunswick Nuclear plant is a secure site and to enter the facility you must obtain a pass. We did not
supply an easement because the project is on land under one owner and no land sales are proposed.
Existing Site Conditions
The capacitor site (site A) is partially wooded and partially grass field and brush. The circuit breaker site -
(site B) is located on existing gravel and will remain as gravel after construction.
The project area is in the Cape Fear River Basin. The majority of the site A (DA-A, C, D and F)
discharges to Nancy's Creek. The remaining portion of site A (DA-B and E) discharges to an existing
canalAevee system. Site B flows into an existing stormwater treatment facility that discharges to Nancy's
Creek. Nancy's Creek is classified as SC, Sw, and HQW. Class SC waters are tidal salt waters protected
for secondary recreation, fishing, aquatic life and wildlife. The classification Sw indicates swamp waters,
which have low velocities and other natural characteristics that are different from and adjacent streams.
The supplemental HQW indicates High Quality Waters, which are waters that are rated as excellent based
on biological and physical/chemical characteristics.
Soils Characteristics
The soils in the area of construction are classified as BrB, Bragg fine sandy loam, 2 to 6 percent slopes
according to the Soils map constructed 1967 by Cartographic Division, Soil Conservation Service,
USDA, from 1965 aerial photographs.
Stormwater Management
Only the stormwater runoff from the capacitor bank (site A) of 1.20 acres will be treated via an open sand
filter (this area includes the BMP). The post construction treatment area stormwater from the capacitor
bank will sheet flow across gravel, into a forebay, over a fixed weir (concrete lip) into an open sand filter.
The sand filter will allow water to percolate through filter media to remove pollutants and treat the
stormwater. The flow will be collected by an underdrain system at the bottom of the filter media and
discharge to a level spreader and then sheet flow to Nancy's Creek and eventually the Cape Fear River.
!UN 2 200°
The sand filter has been designed as an on-line system. Therefore, the device has been designed to treat —
twice the required volume of the 1.5" rainfall event. Further the forebay exceeds the minimum of 20% of
the required treatment volume. Twice the required volume of stormwater will be stored in the sand filter
and recover within the required 40 hour time period via an underdrain system. The underdrain was sized
in accordance with Section 5.7 of the North Carolina Division of Water Quality Best Management
Practice manual, latest edition. In addition, the I -year, 24-hour post -construction flow rate will be
released at a rate less than pre -construction flow rates.
As the design exceeds both treatment volume and attenuation volume for the (site A) capacitor banks of
1.20 acres it also provides compensatory treatment and attenuation for all incidental areas of new
impervious cover (such as driveway aprons — 0.1 1 ac). The total 76% impervious (or 39,640 sf
impervious area) reported on the application includes all new impervious surfaces.
Summary of Stormwater Flow Rates
Peak flow calculations (pre -construction and post -construction) going to the open sand filter were
calculated using Rational Method. The inflow hydrograph and volumes were calculated using SCS
method. The volume of runoff that must be controlled by the sand filter was calculated using Simple
Method. Stage -storage -discharge model for the sand filter was developed using Chainsaw routing. All
calculation methods are described in Section 3 of the North Carolina Division of Water Quality Best
Management Practice manual, latest edition.
The pre -construction and post -construction drainage area for the (site A) built upon area of 1.20 acres is
considered for attenuation. An open sand filter will be utilized on this site to treat runoff from the site.
The pre -constructed flow rate for the 1-year, 24-hour storm event is 1.3 cfs. The post -construction flow
rate of 4.8 cfs is reduced to 0.18 cfs by the BMP. The detention storage volume will be recovered via an
underdrain system at the bottom of the filter media. The underdrain system will discharge into a junction
box. Larger storm events will bypass the sand filter over a weir located along the western perimeter
berm. Physical constraints on the site prohibited the provision for an offline sand filter design. In order
to abate the concern for overload of the sand filter the system has been designed to provide twice the
required storage for treatment. The sand filter will recover the required volume within the allotted time of
40 hours and the forebay meets the minimum design depth of 3 feet and will retain a pool of water below
the invert of the weir to the sand filter.
L�IIV 17 2009
BY:
Appendix E
Sand Filter Calculations
DEPTH -DURATION -FREQUENCY TABLE
LOCATION: Brunswick, North Carolina
Source: Intensities and depth taken from NOAA Atlas 14 Vo12, Version2, SOUTHPORT 5 N, NORTH CAROLINA (31-8113) 33.99 N 78.01 W 29 feet
Precipitation Frequency Estimates (inches)
0.86 0.4
ARI
(years)
5
min
10.00
min
15
min
30
min
60
min
120
min
3
hr
0
0
12
hr
24
hr
1
0.54
0.87
1.09
1.49
1.86
2.22
2.37
2.99
3.5
4.08
2
0.65
1.04
1.3
1.8
2.26
2.71
2.9
3.64
4.27
4.95
5
0.75
1.2
1.52
2.16
2.77
3.41
3.66
4.62
5.46
6.4
10
0.84
1.34
1.69
2A5
3.19
4.03
4.36
5.5
6.54
7.68
25
0.94
1.5
1.9
2.82
3.76
4.87
5.34
6.77
8.1
9.64
50
1.02
1.63
2.07
3.11
4.22
5.6
6.21
7.9
9.51
11.4
100
1.11
1.76
2.23
3.411
4.71
6.381
7.161
9.14
11.06
13.38
1.17
Precipitation Frequency Estimates (inches/ hour)
0
ARI'
(years)
5
min
10
min
15
min
30
min
60
min
120
min
3
hr
6
hr
12
hr
24
hr
1
6.48
5.22
4.36
2.98
1.86
1.11
0.79
0.50
0.29
0.17
2
7.80
6.24
5.20
3.60
2.26
1.36
0.97
0.61
0.36
0.21
5
9.00
7.20
6.08
4.32
2.77
1.71
1.22
0.77
0.46
0.27
10
10.08
8.04
6.76
4.90
3.19
2.02
1.45
0.92
0.55
0.32
25
11.28
9.00
7.60
5.64
3.76
2.44
1.78
1.13
0.68
0.40
50
12.24
9.78
8.28
6.22
4.22
2.80
2.07
1.32
0.79
0.48
100
1 13.32
1 10.561
8.92
1 6.82
1 4.70
1 3.19
1 2.39
1 1.52
0.92
0.56
.1111 I 7 2009
Pre-develo ment conditions I Post-develo ment'condillons . *` `N-",?
Total Built Upon Area = 2.03 ac Total Project Area = 2.03 an
Total Built Upon 0 = 2.1 cts Total Built Upon 0 = 5.7 cfs
Drainage Area D includes all of the area
draining to the stormwater treatment BMP in
the Post -Development condition. All other
remaining areas outside of DA D will
continue to drain to their pre -development
condition locations. Any areas of incidental
new impervious area such as driveway
aprons will be accounted for by
compensatory (additional) volume in the
3111. 1 7 2009
V
1
us
'Assume Tc = minimum tc of 10min given basin size and piped flow nature of runoff
Represents the existing
condition of areas within
Drainage Area D, plus
entrance area Drainage
Area E.
.11 =I
5.22
in/hr
Q,=
1 1.3 cfs
110=
8.04
in/hr
410=
1 1.9 cfs
+150
9.78
in/hr
IQ50=
1 2.3 cfs
+1100=
I 10.56
in/hr
Q,nn=
1 2.5 cfs
+ Intensities taken from NOAA Atlas 14 Vo12, Version2, SOUTHPORT 5 N, NORTH CAROLINA (31-8113) 33.99 N 78.01 W 29 feet
Post -development rondifions . 1 - -� -
Composite C:
0.77
Total Area
1.20
ac
Com osite CN
85.7
Tc
5
min
1.6
5 rt
1.71
1.71
1.7
1.7
Q' (in)
1.6
3.9
6.21
7.4
V (ft)
7,0961
16,995126,9861
32,232
tp (min)
1 17.61
27.41
35.81
39.6
Precipitation values are for the 6hr storm. Malcolm recommends the 6hr storm event for approximation of the volume of runoff
'11=
I 5.22
in/hr
101=
4.8
cfs
'110=
I 8.04
in/hr
101o=
1 7.4
cfs
*150=
1 9.78
in/hr
1050=
1 9.0
cfs
'1100=
I 10.56
in/hr
101nn=
I 9.8
cfs
Brunswick Nuclear Plant Unit 1 Capacitor Bank Installation
Drainage Area D only
BMP Design for 85%TSS Removal
Estimated Storage Required (I yr24hr)
3,777 5
0.09 acre-ft
e/ impervious
67%
Ad (Drainage Area (ac))
Rv runoff coeft
1.20
ac
0.65
Rd (design storm)
3.0
in
WQV (1.5" required, used 3")
8,494
cf
0.20
acre-ft
WQVaai (1.5' required, used 3")
6,371
cf
0.1E
acre-ft
7Y:
1 7 200E
Designed at 2x treatment vol umee on-li-line
Designed at 2x treatment volume on-line
Designed a1 2x treatment volume on-line
Determine available dimensions of sand filter based on site constraints
Available width for sand filter 30 ft
Available length for sand filter 150 ft
Available area for sand filter 4,500 sf (top of sand)
Available area for forebay 2,250 0.4
Calaculate hmex rile, based on available area
As 2,250 sf forebay
At 4,500 sf filter bed
hMax Filter 1.300 ft Designed at 2x treatment volume on-line
hA 0.65 ft `----------------- ---
Check to see if minimum surface area for sedimentation basin and sand filter bed is obtained
Depth of sand filter bed (dl) 2.0 If 1.5 it required minimum
A. (min required) 562 sf
AI (min required) 1,103 sf
Note: The total design treatment volume is
i Minimum surface area for sedimentation basin is attained provided over sand filter area. Volume
(Minimum surface area for sand filter bed is attained contained over sand filter and below weir
_ ___--------------------
crest is 7068 cf.
Ensure Water Duality Volume is contained
(As+AI)*(hmax lilmr) > W OVadi
(Ae+AI)'(hmax rite,) 8,775 fDesigned at 2x treatment volume on-line
WQVadi 6,371
Water Quality Volume is contained —11
RECF1TVEID
JUL I 9 2009
Brunswick Nuclear Plant Unit 1 Capacitor Bank Installation
Lrainage Area D only Ly.
__
Calculate the required weir size to convey flow to sand chamber
Use weir equation
Q=CLH312
Q = 4.8 cfs (Use the 1-yr,24-hr post development)
C= weir coeff 3.0
H = average head 0.1 ft
Required Weir L= 6.37 ft
Crest elevation = 23.3 ft NGVD
Determine the size of weirs required to obtain the required length
Length of weir provided = 150 ft
Max Velocity= 0.003 fps < 1fps, therfore acceptable for entry to sand filter
Exceeds minimum length
"Conservative check for max flow_ J
Brunswick Nuclear Plant Unit 1
Drainage /
Bank
fill_ 1 7 2009
S
CHECK CHECK
Contour Area
Incr Vol Accum
Z
Contour (ft2)
(ft3) Vol (ft3) Stage
(ft) In(S) In(Z)
Z est SA
21.5 6,700.00
0 0
0
22 7,776.00
3619 3,619
0.5 8.19 -0.69
0.53 8,093
22.5 8,865.00
4160 7,779
1 8.96 0.00
1.00 9,238
23 9,990.00
4714 12,493
1.5 9.43 0.41
1.49 9,982
23.3 10,682.00
3101 15,594
1.8 9.65 0.59
1.80 10,336
23.5 11,396.00
2208 17,802
2 9.79 0.69
2.01 10,546
(Note: Volumes above include Forebay and Sand Filter for routing purposes)
WQV (1.5) required
8,494 ft3 Designed at 2x treatment volume on-line
Elevation for WQV
23.08
Estimate Vol for lyr24hr Attentuation 3,777 ft3
Elevation for Attenuation Volume
22.55
xcoeff 1.1910
b = 1.19
y-intercept 8.9563
Ks = 7757
9.90
9.80
1 191z+8'9563tim
9.70
9.60'
9.50
t t
9.40,
+ xd,a t �p
`r t ll sP x
9.30
t
9.20
s Y
wv
9.10
9.00
p.
8.90
0.00 0.10
0.20 0.30 0.40
0.50 0.60 0.70
0.80
• Seriest-Linear(Seriesl)
Brunswick Nuclear Plant Unit I Capurimr Bank Installation
Drainage Area D ondy_
I yr-Shan,
Besnlls
Norm srat'ne.=
N/A ac
flax surf area=
0.21 ac
Required SA =
N/A ac
Peak stago-
22.99 it
I'CA ontllow=
0.2 cfs
Biac=
0,84 fi
Pre-Develapincnl
freeboard
Ilow'
1.3cf,
(max ,nags)
ID ft
In mts
Stage Storage
Rydmgraph Inputs
Ks=
7757
op.
4.8 cis
b.
lAg
Tp=
17.6 min
Zo-
22.15
CrT=
I min
Initial Water Level.
Zi.
22.15 n
llutnow Devices
Biscr/Barrel Spillway
RECF�V�JD
7 2009
BY:- ---
W V Drawdawa
WOVRequired =
6.371
of
WOV Provided =
17,802
of
Time Step begin drawdown=
74
minutes
Time Step end drawdown for
required WOV.
652
minutes
Drawdown lime=
9.6
hours
Designed at 2x treatment volume on-line
N.
0
Number of Risers
Orifice NI
Driser=
0 in
Riser Diameter
N.
0
Cw=
3.30
Riser Weir Coen
D.
0 in
Cd-
0.6
Riser Orifice Coen
Cd-
0.6
Zcm
23.3 it
Riser Crest Elev
Inv.
20 n
Db=
0 in
Barrel Diameter
Cd=
0.6
Barrel orifice coen
Underdone
Zinv=
20.0 n
Elev invert barrel
N.
2
D.
din
Emergenry Weir:
O.
0. 182 cis
assumes constant head C) el 22.15
L-
5 it
Ise-
22.15 It
(lap of sand)
Zcr=
23.4 It
Cw=
2.5 rock_
Tup or Dam
Underdrain
I n
N=
2
Zcr=
3L0 It
D=
4
Cw=
2.%grass _ �O=
0.182
eta
Riser
Riser
Emergency
3ime
Innow Slomge
Surge 0u1now
(Drifter)
(11•eir)
Durrel
NBspwy
Orificelll
Underdrain
Weir
Top at Dran
(min)
(crs) na I)
(11)
(efp
(cry)
(crs)
(era)
(crs)
(efs)
(ers)
(crs)
(crs)
0
0
0.00E+00
22.15
0.00
OA
0.0
0.000
0.0
0.00
0.00
0.0
0.0
1
0
0.00E+00
22.15
0.00
0.0
0.0
0.000
0.0
0.00
0.00
0.0
0.0
2
0
2.29E+00
22.15
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
3
0
4.47E-01
22.15
0J8
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
4
1
9.70E+00
22.15
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
5
1
3.40E+01
22.16
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
6
1
7.68E+01
22.17
0.18
0.0
0.0
0.000
0.0
0.00
0A8
0.0
0.0
7
2
1.41E+02
22.18
0.18
0.0
0.0
0.000
0.0
0.00
OA8
0.0
0.0
8
2
2.29E+02
22.20
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
9
2
3.42E02
22.22
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
10
3
4.80E+02
22.25
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
11
3
6.44Ev02
22.27
OA8
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
12
4
8.33E+02
22.30
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
13
4
1.04E+03
22.34
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
14
4
1.28E+03
22.37
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
15
5
1.53E+03
22.41
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
16
5
1.79E+03
22.44
0.18
0.0
0.0
0.000
0.0
0.00
OA8
0.0
0.0
17
5
2.06E+03
22.48
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
18
5
2.34E+03
22.52
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
19
5
2.62E+03
22.55
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
20
5
2.89E+03
22.59
DAB
0.0
0.0
0.000
0.0
OM
0.18
0.0
0.0
21
4
3.16E+03
22.62
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
22
4
3.41 E+03
22.65
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
23
4
3.65E+03
22.68
0.18
0.0
00
0.000
0.0
0.00
0.18
0.0
0.0
24
4
3.87E+03
22.71
0.1B
0.0
U
0.000
0.0
0.00
0A8
0.0
0.0
25
3
4.07E+03
22.73
0.18
0.0
0.0
0.000
0.0
0.00
0.16
0.0
0.0
26
3
4.26E+03
22.75
0.18
M
M
0.000
0.0
0.00
0.18
0.0
0.0
27
3
4.43E+03
22.77
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
28
3
4.59E+03
22.79
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
29
2
4.74E+03
22.81
0.10
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
30
2
4.88E+03
22.83
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
31
2
5.00E+03
22.84
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
32
2
5.12E+03
22.86
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
33
2
5.23E+03
22.87
0.18
0.0
0.0
0.000
0+0
0.00
0.18
0.0
OD
34
2
5.33E+03
22.88
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
35
2
5.42E+03
22.89
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0+0
1 yr 24hr Storm - Sand Filter Division Truck Company and MP Company Interim Facilities Page 1 of 10
REC EIVED
it it 17 2009
BY:
Riser
Riser
F.mergerc�
'Time
Inflow
Storage
Sorge
ownnw
(Ori0ce)
(Weir)
Barrel
Rispwy
Orifice#1
UnderAmin
Weir
Top nr In
(min)
(efs)
(en R)
(I)
(efM)
(crs)
(era')
(ers)
(efs)
(efs)
(crs)
(,A)
1crs1
36
1
5.50E+03
22.90
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
37
1
5.58E+03
22.91
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
38
1
5.65E+03
22.92
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
39
1
5.72E+03
22.92
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
40
1
5.78E+03
22.93
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
41
1
5.83E+03
22.94
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
42
1
5.88E+03
22.94
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
43
1
5.93E+03
22.95
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
44
1
5.97E+03
22.95
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
45
1
6.01 E+03
22.96
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
46
1
6.04E+03
22.96
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
47
1
6.07E+03
22.96
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
48
1
6.10E+03
22.97
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
49
1
6.13E+03
22.97
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
50
1
6.15E+03
22.97
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
51
0
6.17E+03
22.98
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
52
0
6.19E+03
22.98
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
53
0
6.20E+03
22.98
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
54
0
6.22E+03
22.98
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
55
0
6.23E+03
22.98
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
56
0
6.24E+03
22.98
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
57
0
6.25E+03
22.98
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
58
0
6.26E+03
22.99
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
59
0
6.27E+03
22.99
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
60
0
6.27E+03
22.99
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
61
0
6.27E+03
22.99
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
62
0
6.28E+03
22.99
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
63
0
6.28E+03
22.99
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
64
0
6.28E+03
22.99
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
65
0
6.28E+03
22.99
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
66
0
6.28E+03
22.99
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
67
0
6.28E+03
22.99
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
68
0
6.28E+03
22.99
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
69
0
6.27E+03
22.99
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
70
0
6.27E+03
22.99
0.16
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
71
0
6.27E+03
22.99
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
72
0
6.26E+03
22.99
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
73
0
6.26E+03
22.99
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
74
0
6.25E+03
22.98
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
75
0
6.25E+03
22.98
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
76
0
6.24E+03
22.98
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
77
0
6.24E+03
22.98
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
78
0
6.23E+03
22.98
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
79
0
6.22E+03
22.98
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
80
0
6.22E+03
22.98
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
81
0
6.21E+03
22.98
0.18
0.0
0.0
Omit
0.0
0.00
0.18
0.0
0.0
82
0
6.20E+03
22.98
0.18
0.0
0.0
0000
0.0
0.00
0.18
0.0
0.0
83
0
6.19E+03
22.98
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
84
0
6.18E+03
22.98
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
85
0
6.18E+03
22.98
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
86
0
6.17E+03
22.97
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
87
0
6.16E+03
22.97
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
88
0
6.15E+03
22.97
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
89
0
6.14E+03
22.97
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
90
0
6.13E+03
22.97
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
91
0
6.12E+03
22.97
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
92
0
6.11 E+03
22.97
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
93
0
6.10E+03
22.97
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
94
0
6.09En03
22.97
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
95
0
6.08E+03
22.97
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
96
0
6.07E+03
22.96
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
97
0
6.06E+03
22.96
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
98
0
6.05E+03
22.96
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
99
0
6.04E+03
22.96
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
100
0
6.03E+03
22.96
0.18
0.0
0.0
0.000
00
0.00
0.18
0.0
0.0
101
0
6.02E+03
22.96
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
102
0
6.01 E+03
22.96
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
103
0
6.00E+03
22.96
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
104
0
5.99E+03
22.96
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
105
0
5.98E+03
22.95
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
106
0
5.97E+03
22.95
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
107
0
5.96E+03
22.95
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
108
0
5.95E+03
22.95
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
109
0
5.94E+03
22.95
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
110
0
5.93E+03
22.95
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
111
0
5.92E+03
22.95
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
1 yr 24hr Storm
- SaW Filler
Division Track
Company
and MP Company Interim
Facilities
Page 2 of 10
1�Crx
lul. 7 7 2009
BY:
Riser
Riser
Emergency
Time
Inflow
Storage
Stage
Outnow
(Orifice)
(Weir)
Barrel
RBxpwy
Orificetll
Underdrain
Weir
Toy or Uam
Orrin)
Ids)
Iru RI
(f)
(erx)
(ers)
(ers)
(ers)
(efs)
(e&)
(ers)
lets)
(crp)
112
0
5.91 E+03
22.95
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
113
0
5.90E+03
22.94
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
114
0
5.89E+03
22.94
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
115
0
5.88E+03
22.94
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
116
0
5.87E+03
22.94
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
117
0
5.86E+03
22.94
0.18
0.0
0.0
0.000
00
0.00
0.18
0.0
0.0
118
0
5.84E+03
22.94
0.18
0.0
0.0
0.000
0.0
MO
0.18
0.0
0.0
119
0
5.83E+03
22.94
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
120
0
5.82E+03
22.94
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
121
0
5.81 E+03
22.93
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
122
0
5.80E+03
22.93
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
123
0
5.79E+03
22.93
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
124
0
5.78E+03
22.93
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
125
0
5.77E+03
22.93
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
126
0
5.76E+03
22.93
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
127
0
575E+03
22.93
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
128
0
5.74E+03
22.93
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
129
0
5.73E+03
22.93
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
130
0
5.72E+03
22.92
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
131
0
5.70E+03
22.92
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
132
0
5.69E+03
22.92
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
133
0
5.68E+03
22.92
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
134
0
5.67E+03
22.92
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
135
0
5.66E+03
22.92
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
136
0
5.65E+03
22.92
0.18
0.0
0.0
0.000
00
0.00
0.18
0.0
0.0
137
0
5.64E+03
22.92
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
138
0
5.63E+03
22.91
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
139
0
5.62E+03
22.91
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
140
0
5.61 E+03
22.91
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
141
0
660E+03
22.91
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
142
0
5.58E+03
22.91
0.18
0.0
0.0
0.000
0.0
0.00
0.48
0.0
0.0
143
0
5.57E+03
22.91
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
144
0
5.56E+03
22.91
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
145
0
5.55E+03
22.91
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
146
0
5.54E+03
22.90
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
147
0
5.53E+03
22.90
0.18
0.0
0.0
0.000
0,0
0.00
0.18
0.0
0.0
148
0
5.52E+03
22.90
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
149
0
5.51 E+03
22.90
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
150
0
5.50E+03
22.90
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
151
0
5.49E+03
22.90
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
152
0
5.48E+03
22.90
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
153
0
5.46E+03
22.90
0.18
0.0
0.0
0.000
0.0
MO
0.18
0.0
0.0
154
0
5.45E+03
22.89
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
155
0
5.44E+03
22.89
0.18
0.0
0.0
0.000
0.0
MO
0.18
0.0
0.0
156
0
5.43E+03
22.89
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
157
0
5.42E+03
22.89
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
158
0
5.41 E+03
22.89
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
159
0
5.40E+03
22.89
0.18
0.0
0.0
0.000
0.0
000
0.18
0.0
0.0
160
0
5.39E+03
22.89
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
161
0
5.38E+03
22.89
0.18
0.0
0.0
0.000
0.0
000
0.18
0.0
0.0
162
0
5.37E+03
22.88
0.18
0.0
0.0
0.000
0.0
OM
0.18
0.0
0.0
163
0
5.36E+03
22.88
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
164
0
5.34E+03
22.88
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
165
0
5.33E+03
22.88
0.18
0.0
0.0
0.000
0.0
000
0.18
0.0
0.0
166
0
5.32E+03
22.88
0.18
0.0
0.0
0.000
0.0
000
0.18
0.0
0.0
167
0
5.31 E+03
22.88
0.18
0.0
0.0
0.000
0.0
OM
0.18
0.0
0.0
168
0
5.30E+03
22.88
0.18
0.0
0.0
0.000
0.0
0.00
Ulf
0.0
0.0
169
0
5.29E+03
22.88
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
170
0
5.28E+03
22.87
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
171
0
5.27E+03
22.87
0.18
0.0
0.0
0.000
0.0
000
0.18
0.0
0.0
172
0
5.26E+03
22.87
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
173
0
5.25E+03
22.87
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
174
0
5.24E+03
22.87
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
175
0
5.22E+03
22.87
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
176
0
5.21 E+03
22.87
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
177
0
5.20E+03
22.87
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
178
0
5.19Ef03
22.86
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
00
179
0
5.18E+03
22.86
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
180
0
5.17E+03
22.86
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
181
0
5.16E+03
22.86
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
182
0
5.15E+03
22.86
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
183
0
5.14E+03
22.86
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
00
184
0
5.13E+03
22.86
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
185
0
5.12E+03
22.85
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
186
O
5.10E+03
22.85
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
187
0
5.09E+03
22.85
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
1 yr 24hr Storm
- Sand Filter
Division Truck
Company and MP Company Interim
Facilities
Page 3 of 10
�2lECEI V EID
n II- 17 2009
BY:
Riser Riser F,nkrgrncy
'I loe woO Swim, SWgc Ou18ox (Orifice) (Weir) Barrel Rliepxy Orifirepl UMerrlruin WOr Top of Dam
(min) (efs) Ica B) (R) IcL) (efs) (rfs) (rff) (ers) (crs) WO (efd) (rrs)
188 0 5.08E+03 22.85 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
189 0 5.07E+03 22.85 0.18 0.0 0.0 0.000 0.0 000 0.18 0.0 0.0
190 0 5.06E+03 22.85 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
191 0 5.05E+03 22.85 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
192 0 5.04E+03 22.85 0.18 0.0 0.0 0.000 0.0 000 0.18 0.0 0.0
193 0 5.03E+03 22.84 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
194 0 5.02E+03 22.84 0+18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
195 0 5.01 E+03 22.84 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
196 0 4.99E+03 22.84 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
197 0 4.98E+03 22.84 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
198 0 4.97E+03 22.84 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
199 0 4.96E+03 22.84 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
200 0 4.95E+03 22.84 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
201 0 4.94E+03 22.83 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
202 0 4.93E+03 22.83 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
203 0 4.92E+03 22.83 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
204 0 4.91 E+03 22.83 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
205 0 4.90E+03 22.83 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
206 0 4.89E+03 22.83 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
207 0 4.87E+03 22.83 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
208 0 4.86E+03 22.83 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
209 0 4.85E+03 22.82 0.18 0.0 0.0 0,000 0.0 0.00 0.18 0.0 0.0
210 0 4.84E+03 22.82 0.18 0.0 0.0 0000 0.0 0.00 0.18 0.0 0.0
211 0 4.83E+03 22.82 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
212 0 4.82E+03 22.82 0.18 0.0 0.0 0.000 0.0 0.00 0.16 0.0 0.0
213 0 4.81 E+03 22.82 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
214 0 4.80E+03 22.82 0.18 0.0 0.0 0.000 00 0.00 0.18 0.0 0.0
215 0 4.79E+03 22.82 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
216 0 4.78E+03 22.82 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
217 0 4.77E+03 22.81 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
218 0 4.75E+03 22.81 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
219 0 4.74E+03 22.81 0.18 0.0 0.0 0.000 00 0.00 0.18 0.0 0.0
220 0 473E+03 22.81 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
221 0 4.72E+03 22.81 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
222 0 4.71 E+03 22.81 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
223 0 4.70E+03 22.81 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
224 0 4.69E+03 22.81 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
225 0 4.68E+03 22.80 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
226 0 4.67E+03 22.80 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
227 0 4.66E+03 22.80 0.18 0.0 0.0 MOO 0.0 0.00 0.18 0.0 0.0
228 0 4.64E+03 22.80 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
229 0 4.63E+03 22.80 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
230 0 4.62E+03 22.80 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
231 0 4.61E+03 22.80 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
232 0 4.60E+03 22.79 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
233 0 4.59E+03 22.79 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
234 0 4.58E+03 22.79 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
235 0 4.57EE 03 22.79 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
236 0 4.56E+03 22.79 0.18 0.0 0.0 0.000 00 0.00 0.18 0.0 0.0
237 0 4.55E+03 22.79 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
238 0 4.54E+03 22.79 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
239 0 4.52E+03 22.79 0.18 0.0 0.0 0.000 0,0 0.00 0.18 0.0 0.0
240 0 4.51 E+03 22.78 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
241 0 4.50E+03 22.78 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
242 0 4.49E+03 22.78 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
243 0 4.48E+03 22.78 0.18 0.0 0.0 0.000 0.0 0.00 0.16 0.0 0.0
244 0 4.47E+03 22.78 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
245 0 4.46E+03 22.78 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
246 0 4.45E+03 22.78 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
247 0 4.44E+03 22.78 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
248 0 4.43E+03 22.77 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
249 0 4.42E+03 22.77 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
250 0 4.40E+03 22.77 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
251 0 4.39E+03 22.77 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
252 0 4.38Et03 22.77 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
253 0 4.37E+03 22.77 0.18 0.0 0.0 0.000 00 0.00 0.18 0.0 0.0
254 0 4.36E+03 22.77 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
255 0 4.35E+03 22.77 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
256 0 4.34E+03 22.76 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
257 0 4.33E+03 22.76 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
258 0 4.32E+03 22.76 0.18 0.0 0.0 0000 Oe 0.00 0.18 0.0 0.0
259 0 4.31 E+03 22.76 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
260 0 4.29E+03 22.76 0.18 0.0 0.0 O.000 0.0 0.00 0.18 0.0 0.0
261 0 4.28E+03 22.76 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
262 0 4.27E+03 22.76 0.18 0.0 0.0 0000 0.0 0.00 0.18 0.0 0.0
263 0 4.26E+03 22.75 0.18 0.0 0.0 0.000 0.0 0.00 0.18 0.0 0.0
1yr 24hr Storm - Send Filler Division Truck Company and MP Company Interim Facilities Page 4 of 10
JR�C�ry
.r
17
2009
Riser
Riser
�-"Y:
limer�;erny
Tinte
Ingo
Storage
Stage
(Imnnw
(Orifice)
Oveir)
Barrel
RBspay
Orifice Nl
Underdrain
Weir Tap
of Dam
(min)
(efs)
fro B)
(B)
(efs)
(era)
(efs)
(efs)
(cf.,)
(crs)
(rrs)
(crv)
icrs)
264
0
4.25E+03
22.75
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
265
0
4.24E+03
22.75
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
266
0
0.23E+03
22.75
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
267
0
4.22E+03
22.75
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
268
0
4.21 E+03
22.75
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
269
0
4.20E+03
22.75
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
270
0
4.19E+03
22.75
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
271
0
4.17E+03
22.74
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
272
0
4.16E+03
22.74
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
273
0
4.15E+03
22.74
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
274
0
4.14E+03
22.74
0.18
0.0
00
0.000
00
0.00
0.18
0.0
0.0
275
0
4.13E+03
22.74
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
276
0
4.12E+03
22.74
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
277
0
4.11 E+03
22.74
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
278
0
4.10E+03
22.74
0.18
0.0
0.0
0.000
0.0
000
0.18
0.0
0.0
279
0
4.09E+03
22.73
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
280
0
4.08E+03
22.73
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
281
0
4.07E+03
22.73
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
282
0
4.05E+03
22.73
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
283
0
4.04E+03
22.73
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
284
0
4.03E+03
22.73
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
285
0
4.02E+03
22.73
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
286
0
4.01 E+03
22.72
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
287
0
4.00E+03
22.72
0.18
0.0
-0.0
0.000
0.0
0.00
0.18
0.0
0.0
288
0
3.99E+03
22.72
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
289
0
3.98E+03
22.72
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
290
0
3.97E+03
22.72
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
291
0
3.96E+03
22.72
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
292
0
3.94E+03
22.72
0.18
0.0
0.0
0000
0.0
0.00
0.18
0.0
0.0
293
0
3.93E+03
22.72
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
294
0
3.92E+03
22.71
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
295
0
3.91E+03
22.71
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
296
0
3.90E+03
22.71
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
297
0
3.89E+03
22.71
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
298
0
3.88E+03
22.71
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
299
0
3.87E+03
22.71
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
300
0
3.86E+03
22.71
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
301
0
3.85E+03
22.70
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
302
0
3.84E+03
22.70
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
303
0
3.82E+03
22.70
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
304
0
MI E+03
22.70
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
305
0
3.80E+03
22.70
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
306
0
3.79E+03
22.70
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
307
0
3.78E+03
22.70
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
308
0
3.77E+03
22.70
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
309
0
3.76E+03
22.69
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
310
0
3.75E+03
22.69
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
311
0
3.74E+03
2269
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
312
0
3.73E+03
22.69
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
313
0
3.72E+03
22.69
0.18
0.0
0.0
0.000
0.0
0.00
0.18
00
0.0
314
0
3.70E+03
22.69
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
315
0
3.69E+03
22.69
0.18
0.0
0.0
0.000
0.0
0.00
0.18
00
0.0
316
0
3.68E+03
22.68
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
317
0
3.67E+03
22.68
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
318
0
3.66E+03
22.68
0.18
00
0.0
0.000
0.0
0.00
0.18
0.0
0.0
319
0
3.65E+03
22.68
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
320
0
3.64E+03
22.68
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
321
0
3.63E+03
22.68
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
322
0
3.62E+03
22.68
0.18
0.0
0.0
0.000
0.0
0.00
0.1B
0.0
0.0
323
0
3.61 E+03
22.68
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
324
0
3.59E+03
22.67
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
325
0
3.58E+03
22.67
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
326
0
3.57E+03
22.67
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
327
0
3.56E+03
22.67
0.18
0.0
0.0
0.000
0.0
0.00
0.1B
0.0
0.0
328
0
3.55E+03
22.67
0.18
0.0
0.0
0.000
0.0
0.00
0.18
00
0.0
329
0
3.54E+03
22.67
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
330
0
3.53E+03
22.67
0.18
00
0.0
0.000
0.0
0.00
0.18
0.0
0.0
331
0
3.52E+03
22.66
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
332
0
3.51 E,03
22.66
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
333
0
3.50E+03
22.66
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
334
0
3.49E+03
22.66
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
335
0
3.47E+03
22.66
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
336
0
3.46E+03
22.66
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
337
0
3.45E+03
22.66
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
338
0
3.44E+03
22.66
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
339
0
3.43E+03
22.65
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
1yr 24hr Storm -
Sand Filler
Division Truck
Company and MP
Company Interim Facilities
Page 5 of 10
RECEIVED
.nil.
17 2009
BY:
Riser
Riser
Rmergeney
'rime
1nnow
$Image
swge
O.tOnw
(lririce)
(Wei,)
Barrel
Rltsp%y
Oritiaepl
Underdram
Weir Top nr Dam
(min)
(crsl
(can)
(R)
(crs)
(crq
(c&)
Icrs)
(cfs)
(crs)
1e6)
(crs)
(crs)
340
0
3.42E+03
22.65
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
341
0
3.41 E+03
22 65
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0 0
342
0
3.40E+03
22.65
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
343
0
3.39E+03
22.65
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
3"
0
3.38E+03
22.65
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
345
0
3.37E+03
22.65
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
346
0
3.35E+03
22.64
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
347
0
3.34E+03
22.64
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
348
0
3.33E+03
22.64
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
349
0
3.32E+03
22.64
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
350
0
3.31 E+03
22.64
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
351
0
3.30E+03
22.64
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
352
0
3.29E+03
22.64
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
353
0
3.28E+03
22.64
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
354
0
3.27E+03
22.63
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
355
0
3.26E+03
22.63
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
356
0
3.24E+03
22.63
0.18
0.0
00
0D00
0.0
0.00
0.18
0.0
0.0
357
0
3.23E+03
22.63
0.18
0.0
0.0
0000
0.0
0.00
0.18
0.0
0.0
358
0
3.22E+03
22.63
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
359
0
3.21 E+03
22.63
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
360
0
3.20E+03
22.63
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
361
0
3.19E+03
22.62
0.18
0.0
0.0
0.000
00
0.00
0.18
0.0
0.0
362
0
3.18E+03
22.62
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
363
0
3.17E+03
22.62
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
364
0
3.16E+03
22.62
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
365
0
3.15E+03
22.62
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
366
0
3.14E+03
22.62
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
367
0
3.12E+03
22.62
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
368
0
3.11 E+03
22.61
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
369
0
3.10E+03
22.61
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
370
0
3.09E+03
22.61
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
371
0
3.08E+03
22.61
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
372
0
3.07E+03
22.61
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
373
0
3.06E+03
22.61
0.18
0.0
0.0
0000
0.0
0.00
0.18
0.0
0.0
374
0
3.05E+03
22.61
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
375
0
3.04E+03
22.61
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
376
0
3.03E+03
22.60
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
377
0
3.02E+03
22.60
0.18
0.0
0.0
0.000
0.0
000
0.18
0.0
0.0
378
0
3.00E+03
22.60
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
379
0
2.99E+03
22.60
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
380
0
2.98E+03
22.60
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
381
0
2.97E+03
22.60
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
382
0
2.96E+03
22.60
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
383
0
2.95E+03
22.59
0.18
0.0
0.0
0.000
0.0
000
0.18
0.0
0.0
384
0
2.94E+03
22.59
0.18
0.0
0.0
0.000
0.0
000
0.lB
0.0
0.0
385
0
2.93E+03
22.59
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
386
0
2.92E+03
22.59
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
387
0
2.91E+03
22.59
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
388
0
2.89E+03
22.59
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
389
0
2.88E+03
22.59
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
390
0
2.87E+03
22.58
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
391
0
2.86E+03
22.58
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
392
0
2.85E+03
22.58
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
393
0
2.84E+03
22.58
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
394
0
2.83E+03
22.58
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
395
0
2.82E+03
22.58
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
396
0
2.81 E+03
22.58
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
397
0
2.80E+03
22.57
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
398
0
2.79E+03
22.57
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
399
0
2.77E+03
22.57
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
400
0
2.76E+03
22.57
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
401
0
2.75E+03
22.57
0.18
0.0
0.0
0.000
0.0
0.00
0.18
00
0.0
402
0
274E+03
22-57
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
00
403
0
2.73E+03
22.57
0.18.
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
404
0
2.72E+03
22.56
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
405
0
2.71E+03
22.56
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
406
0
2.70E+03
22.56
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
407
0
2.69E+03
22.56
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
408
0
2.68E+03
22.56
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
409
0
2.67E+03
22.56
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
410
0
2.65E+03
22.56
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
411
0
2.64E+03
22.55
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
412
0
2.63E+03
22.55
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
413
0
2.62E+03
22.55
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
414
0
2.61 E+03
22.55
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
415
0
2.60E+03
22.55
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
1yr 24hr Storm
- Sand Filter
Division Truck
Company
and MP Company Interim
Facilities
Page 6 or 10
n u i
7 INS
BY: -_----
Ri,er
Rimr
Rmnrgermy
'Rnx
Innon
Stnragc
Stage
Dutnow
(Oririce)
(Weir)
Ilarrol
Rllspny
Ilrificakl
Undendrain
Weir '1'oporl)uni
muro
(.rs)
(cn n)
(n)
Ids)
(rr,)
(,R)
ar,)
(Cr,)
(rrs)
(rrs)
n,k)
(t,R)
416
0
2.59E+03
22.55
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
417
0
2.58E+03
22.55
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
418
0
2.57E+03
22.55
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
419
0
2.56E+03
22.54
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
420
0
2.54E+03
22.54
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
421
0
2.53E+03
22.54
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
422
0
2.52E+03
22.54
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
423
0
2.51 E+03
22.54
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
424
0
2.50E+03
22.54
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
425
0
2.49E+03
22.54
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
426
0
2.48E+03
22.53
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
427
0
2.47E+03
22.53
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
428
0
2.46E+03
22.53
0.18
0.0
0.0
0.000
00
0.00
0.18
0.0
0.0
429
0
2.45E+03
22.53
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
430
0
2.44E+03
22.53
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
431
0
2.42E+03
22.53
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
432
0
2.41 E+03
22.53
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
433
0
2.40E+03
22.52
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
434
0
2.39E+03
22.52
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
435
0
2.38E+03
22.52
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
436
0
2.37E+03
22.52
0.18
00
0.0
0.000
0.0
0.00
0.18
0.0
0.0
437
0
2.36E+03
22.52
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
438
0
2.35E+03
22.52
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
439
0
2.34E+03
22.52
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
440
0
2.33E+03
22.51
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
441
0
2.32E+03
22.51
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
442
0
2.30E+03
22.51
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
443
0
2.29E+03
22.51
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
444
0
2.28E+03
22.51
0.18
0.0
0.0
0.000
00
0.00
0.18
0.0
0.0
445
0
2.27E+03
22.51
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
446
0
2.26E+03
22.51
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
447
0
2.25E+03
22.50
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
448
0
2.24E+03
22.50
0.18
0.0
0.0
0.000
00
0.00
0.18
0.0
0.0
449
0
2.23E+03
22.50
0.18
00
0.0
0.000
0.0
0.00
0.18
0.0
0.0
450
0
2.22E+03
22.50
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
451
0
2.21 E+03
22.50
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
452
0
2.19E+03
22.50
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
453
0
2.18E+03
22.50
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
454
0
2.17E+03
22.49
0.18
0.0
0.0
0.000
00
0.00
0.18
0.0
0.0
455
0
2.16E+03
22.49
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
456
0
2.15E+03
22.49
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
457
0
2.14E+03
22.49
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
458
0
2.13E+03
22.49
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
459
0
2.12E+03
22.49
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
460
0
2.11E+03
22.48
0.18
0.0
0.0
0000
0.0
0.00
0.18
0.0
0.0
461
0
2.10E+03
22.48
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
462
0
2.09E+03
22.48
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
463
0
2.07E+03
22.48
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
464
0
2.06E+03
22.48
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
465
0
2.05E+03
22.48
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
466
0
2.04E+03
22.48
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
467
0
2.03E+03
22.47
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
468
0
2.02E+03
22.47
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
469
0
2.01 E+03
22.47
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
470
0
2.00E+03
22.47
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
471
0
1.99E+03
22.47
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
472
0
1.98E+03
22.47
0.18
0.0
0.0
0.000
00
0.00
0.18
0.0
0.0
473
0
1.97E+03
22.47
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
474
0
1.95E+03
22.46
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
475
0
1.94E+03
22.46
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
476
0
1.93E+03
22.46
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
477
0
1.92E+03
22.46
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
478
0
1.91 E+03
22.46
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
479
0
1.90E+03
22.46
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
460
0
1.89E+03
22.46
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
481
0
1.88E+03
22.45
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
482
0
1.87E+03
22.45
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
483
0
1.86E+03
22.45
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
484
0
1.84E+03
22.45
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
485
0
1.83E f03
22.45
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
486
0
1.82E+03
22.45
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
487
0
1.81 E+03
22.44
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
488
0
1.80E+03
22.44
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
489
0
1.79E+03
22.44
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
490
0
1.78E+03
22.44
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
491
0
1.77E+03
22.44
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
1yr 24hr Storm -
Sand Filter
Division Truck
Company
and MP
Company Interim
Facilities
Page 7 of 10
--C-- v-EID72009Nicer
:b1.!trQVdmIn�
Nicer
___IirneInflow
Storage
Stage
Ouirew
mrifi3O
Mori
Named
N16pwy
Ori
Weir Top
of,)am
Unin)
(ers)
(m N)
101
(dr)
(rh)
(ers)
(crs)
(ers)
(efs)
(crs)
(efs)
(cr.,)
492
0
1.76E+03
22.44
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
493
0
1.75E+03
22.44
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
494
0
1.74E+03
22.43
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
495
0
1.72E+03
22.43
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
496
0
1.71 E+03
22.43
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
497
0
1.70E+03
22.43
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
498
0
1.69E+03
22.43
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
499
0
1.68E+03
22.43
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
500
0
1.67E+03
22.43
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
501
0
1.66E+03
22.42
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
502
0
1.65E+03
22.42
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
503
0
1.64E+03
22.42
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
504
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1.63E+03
22.42
0.18
0.0
0.0
0.000
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0.18
0.0
0.0
505
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1.62E+03
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0.000
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506
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1.60E+03
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507
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1.57E+03
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1.54E+03
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513
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1.53E+03
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514
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1.52E+03
22.40
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0.0
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515
0
1.51 E+03
22.40
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0.000
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516
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1.49E+03
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0.000
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1.48E+03
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1.47E+03
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1.46E+03
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1.45E+03
22.39
0.18
00
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0.18
0.0
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521
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1.44E+03
22.39
O.IB
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0.000
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1.43E+03
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1.42E+03
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1.41E+03
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1.40E+03
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1.39E+03
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1.37E+03
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528
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1.36E+03
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0.0
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529
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1.35E+03
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0.000
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0.0
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530
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1.34E+03
22.38
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0.000
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0.0
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531
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1.33E+03
22.38
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0.000
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0.0
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532
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1.32E+03
22.38
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0.0
0.000
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533
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1.31E+03
22.37
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0.000
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0.18
0.0
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534
0
1.30E+03
22.37
0.18
00
0.0
0.000
0.0
0.00
0.18
DO
0.0
535
0
1.29E+03
22.37
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
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536
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1.28E+03
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0.0
0.000
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0.18
0.0
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537
0
1.27E+03
22.37
0.18
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0.0
0.000
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0.18
0.0
0.0
538
0
1.25E+03
22.37
0.18
0.0
0.0
0.000
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0.00
0.18
0.0
0.0
539
0
1.24E+03
22.36
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0.0
0.000
0.0
0.00
0.18
0.0
0.0
540
0
1.23E+03
22.36
0.18
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0.000
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0.00
0.18
0.0
0.0
541
0
1.22E+03
22.36
0.18
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0.0
0.000
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0.18
0.0
0,0
542
0
1.21E+03
22.36
0.18
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0.0
0.000
0.0
0.00
0.18
0.0
0.0
543
0
L20E+03
22.36
0.18
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0.0
0.000
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0.18
0.0
0.0
544
0
1.19E+03
22.36
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0.000
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0.18
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0.0
545
0
1.18E+03
22.36
0.18
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0.0
0.000
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0.00
0.18
0.0
D.0
546
0
1.17E+03
22.35
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0.0
0.000
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0.00
0.18
0.0
0.0
547
0
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0.000
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1.14E+03
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1.13E+03
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550
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1.12E+03
22.35
0.18
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0.000
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551
0
1.11 E+03
22.35
0.18
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0.000
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0.18
0.0
0.0
552
0
1.10E+03
22.34
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0.18
0.0
0.0
553
0
1.09E+03
22.34
0.18
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0.0
0.000
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0.00
0.18
0.0
0.0
554
0
1.08E+03
22.34
0.18
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0.000
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0.18
0.0
0.0
555
0
107E+03
22.34
0.18
0.0
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0.000
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0.18
0.0
0.0
556
0
1.06E+03
22.34
0.18
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0.0
0.000
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0.00
0.18
0.0
0.0
557
0
1.05E+03
22.34
0.18
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0.000
0.0
0.00
0.18
0.0
0.0
558
0
1.04E+03
22.33
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
559
0
1.02E+03
22.33
0.18
0.0
0.0
0.000
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0.00
0.18
0.0
0.0
560
0
1.01E+03
22.33
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
561
0
1.00E+03
22.33
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
562
0
9.92E+02
22.33
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
563
0
9.81 E+02
22.33
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
564
0
9.70E+02
22.32
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
565
0
9.59E+02
22.32
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
566
0
9.48E+02
22.32
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
567
0
9.37E+02
22.32
0.18
0.0
0.0
0.000
00
0.00
0.18
0.0
0.0
Iyr 24hr Storm -
Sand Filler
Division Truck
Company and MP
Company Interim
Facilities
Page 8 of 10
RECEIVED
.1111 17 2009
BY:
Riser
Eirer
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Thr.
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(min)
(ery)
Icu n)
(n)
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(rrs)
(rrs)
(rrs)
(rrs)
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(crs)
lurrl
let,)
568
0
9.26E+02
22.32
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
569
0
9.15E+02
22.32
0.18
0.0
0.0
0.000
0.0
0.00
O.t8
0.0
0.0
570
0
9.04E+02
22.31
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
571
0
8.93E+02
22.31
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
572
0
8.82E+02
22.31
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
573
0
8.71 E+02
22.31
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
574
0
8.60E+02
22.31
0.18
0.0
0.0
0.000
0.0
MO
0.18
0.0
0.0
575
0
8.49E+02
22.31
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
576
0
8.39E+02
22.30
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
577
0
8.28E+02
22.30
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
578
0
8.17E+02
22.30
0.18
0.0
0.0
O.000
0.0
0.00
0.18
0.0
0.0
579
0
8.06E+02
22.30
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
580
0
7.95E+02
22.30
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
581
0
7.84E+02
22.30
0.18
00
00
0.000
0.0
0.00
0.18
0.0
0.0
582
0
7.73E+02
22.29
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
583
0
7.62E+02
22.29
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
584
0
7.51 E+02
22.29
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
585
0
7.40E+02
22.29
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
586
0
7.29E+02
22.29
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
587
0
7.18E+02
22.29
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
588
0
7.07E+02
2228
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
589
0
6.96E+02
22.28
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
590
0
6.85E+02
22.28
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
00
591
0
6.74E+02
22.28
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
592
0
6.64E+02
22.28
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
593
0
6.53E+02
22.28
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
594
0
6.42E+02
22.27
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
595
0
6.31 E+02
22.27
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
596
0
6.20E+02
22.27
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
597
0
6.09E+02
22.27
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
598
0
5.98E+02
22.27
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
599
0
5.87E+02
22.26
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
600
0
5.76E+02
22.26
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
601
0
5.65E+02
22.26
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
602
0
5.54E+02
22.26
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
603
0
5.43E+02
22.26
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
604
0
5.32E+02
22.26
0.18
0.0
0.0
0.000
0.0
0.00
OAS
0.0
0.0
605
0
5.21E+02
22.25
OAR
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
606
0
5.10E+02
22.25
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
607
0
4.99E+02
22.25
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
608
0
4.89E+02
22.25
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
609
0
4.78E+02
22.25
0.18
0.0
0.0
0.000
0.0
O.00
0.18
0.0
0.0
610
0
4.67E+02
22.24
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
611
0
4.56E+02
22.24
0.18
0.0
0.0
0.000
0.0
OM
0.18
0.0
0.0
612
0
4.45E+02
22.24
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
613
0
4.34E+02
22.24
0.18
0.0
0.0
O.000
0.0
0.00
0.18
0.0
0.0
614
0
4.23E+02
22.24
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
615
0
4.12E+02
22.24
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
616
0
4.01E+02
22.23
0.18
0.0
0.0
0.000
00
0.00
0.18
0.0
0.0
617
0
3.90E+02
22.23
0.18
0.0
0.0
0.000
OD
0.00
0.18
0.0
0.0
618
0
3.79E+02
22.23
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
619
0
3.68E+02
22.23
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
620
0
3.57E+02
22.23
0.18
0.0
00
0.000
0.0
0.00
0.18
0.0
0.0
621
0
3.46E+02
22.22
0.18
00
0.0
0.000
0.0
0.00
0.18
0.0
0.0
622
0
3.35E+02
22.22
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
623
0
3.24E+02
22.22
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
624
0
3.14E+02
22.22
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
625
0
3.03E+02
22.22
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
626
0
2.92E+02
22.21
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
627
0
2.81 E+02
22.21
0.18
0.0
0.0
0.000
0.0
0.00
0.18
O.O
0.0
628
0
2.70E+02
22.21
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
629
0
2.59E+02
22.21
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
630
0
2.48E+02
22.21
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
631
0
2.37E+02
22.20
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
632
0
2.26E+02
22.20
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
633
0
2.15E+02
22.20
0.18
0.0
0.0
0.000
0.0
0.00
0.18
00
0.0
634
0
2.04E+02
22.20
0.18
0.0
0.0
0.000
0.0
0.00
0.18
O.O
0.0
635
0
1.93E+02
22.20
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
636
0
1.82E e02
22.19
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
637
0
1.71 E,02
22.19
0.18
0.0
0.0
0.000
0.0
0.00
0.18
O.O
0.0
638
0
1.60E+02
22.19
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
639
0
1.49E+02
22-19
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
640
0
1.39E+02
22.18
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
641
0
1.28E+02
22.18
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0,0
0.0
642
0
1.17E+02
22.18
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0'0
0.0
643
0
1.06E+02
22.18
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
t yr 24hr Storm
- Sand Filter
Division Truck
Company are MP Company Interim Facilities
Page 9 of 10
121F�C:gV]Fi�
JUL 1 7 2009
BY:
Riser
Riser
Emergency
Time
InOnw
Srurage
Sorge
Oulnres
(Orifice)
(%9eir)
ItarrO
RIIsRwy Orifice#] Underdrain Wor
'1'np of Dum
(min)
(dt)
ream
00
(ers)
(cr.,)
(en)
(efr)
(efr) (cfr) (ers) (efs)
ndt)
644
0
9.48E+01
22.17
0.18
0.0
0.0
0.000
0.0 0.00 0.18 0.0
0.0
645
0
8.38E+01
22./7
0.18
0.0
0.0
0.000
0.0 0.00 0.18 0.0
0.0
646
0
7.29E+01
22.17
0.18
0.0
0.0
0.000
0.0 0.00 0.18 0.0
0.0
647
0
6.19E+01
22.17
0.18
0.0
0.0
0.000
0.0 0.00 0.18 0.0
0.0
648
0
5.10E+01
22.16
0.18
0.0
0.0
0.000
0.0 0.00 0.18 0.0
0.0
649
0
4.01E+01
22.16
0.18
0.0
0.0
0.000
0.0 0.00 0.18 0.0
0.0
650
0
2.91 E+01
22.16
0.18
0.0
0.0
0.000
0.0 0.00 0.18 0.0
0.0
651
0
1.82E+01
22.16
0.18
0.0
0.0
0.000
0.0 0.00 0.18 0.0
0.0
652
0
7.25E+00
22.15
0.18
0.0
0.0
0.000
0.0 0.00 0.18 0.0
0.0
653
0
0.00E+00
22.15
0.00
0.0
0.0
0.000
0.0 0.00 0.00 0.0
0.0
1yr 24hr Storm - Sand Filter Division Truck Company and MP Company Interim Facilities Page 10 of 10
lyr 24hr Routing - Sand Filter
6.0
5.0
x
4.0
3 3.0
0
LL
2.0
r�{
r
1.0
o
C
0.0 1.
0 50 100 150 200 250 300
350 400 450
Time (min)
Inflow Hydrograph —M-- Outflow Hydrograph
Brunswick Nuclear Plant Unit 1 Capacitor Bunk Installation
Drainage Area [)only
10 yr-Storm
Rewiv,
Norm surfama=
N/A re
Max cart area=
0,23 nc
R,ma ,d SA =
N/A ea
Peak xt.gF
23.66 It
Peak outflow=
1.9 el,
Rix=
1.511t
Pre-Developmem
Freeboard
Flow
19 cis
Qnax stage)
0,7 D
].Puts
Stage Storage
flydrograph Inputs
Ks-
7757
Op.
7.4 cis
b=
1.19
Tp=
27 min
Zo=
22.15
CrT.
I min
Initial Water Level,
Zi=
22.15 It
Outflow Dm;ces
Riscrmarrel Spillway.
N.
0
Number of Risers
Orifice NI
Drlser-
0 in
Riser Diameter
N-
0
Cw=
3.30
Riser Weir Coed
D.
0 in
Cd-
0.6
Riser Orifice Craft
Cd=
06
Zcr=
233 B
Riser Crest Elev
Inv=
20 R
n�!_ i��!Tn�26a�
[J3y:'
�
Do=
0 in
Barrel Diameter
Cd=
0.6
Barrel orifice coeff
Underdrain
Zinv.
20 R
Elev invert barrel
N-
2
D.
4 in
Emergency Weir:
O=
0. 182 efs assumes constant head @ of 22.15
L=
5 B
Inv=
22.15 R (lop of sand)
Za-
23.4 R
Cw= 2.51LMk
Top of Dam
L=
150 R
Za.
24 h
Cw=
29 rass 1j
9j
Kiser
Kiser
Emergency
'lime
Inflow Storage
Stage
Outnow
(Orifice)
(Weir)
Barrel
Nlispey
Orifice Nl
Uderdrain
Weir
Top of Dom
(.at.)
(efs)
(cu R)
(R)
(efs)
(efs)
Icfx)
(cfs)
lcfsl
(cfs)
(cN)
(efs)
(cr.,)
0
0
0.00E+00
22.15
0.00
0.0
0.0
0.000
0.0
0.00
0.00
0.0
0.0
1
0
0.00E+00
22.15
0.00
0.0
0.0
0.000
0.0
0.00
0.00
0.0
0.0
2
0
1.46E+00
22.15
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
3
0
0.00E+00
22.15
0.00
0.0
0.0
0.000
0.0
0.00
0.00
0.0
0.0
4
0
1.30E+01
22.15
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
5
1
2.51E+01
22.16
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
6
1
4.98E+01
22.16
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
7
1
8.95E+01
22.17
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
8
1
1.46E+02
22.19
0.18
0.0
0.0
0,000
0.0
0.00
0.18
0.0
0.0
9
2
2.23E+02
22.20
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
10
2
3.20E+02
22.22
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
11
3
4.40E+02
22.24
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
12
3
5.84E+02
22.26
0.111
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
13
3
7.53E+02
22.29
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
14
4
9.47E+02
22.32
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
15
4
1.17E+03
22.35
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
16
5
1.41 E+03
22.39
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
17
5
1.68E+03
22.43
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
18
5
1.97E+03
22.47
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
19
6
2.29E+03
22.51
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
20
6
2.63E+03
22.55
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
21
6
2.99E+03
22.60
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
22
7
3.37E+03
22.65
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
23
7
3.76E+03
22.69
0.18
0.0
0.0
0,000
0.0
0.00
0.18
0.0
0.0
24
7
4A7E+03
22.74
0.18
0.0
0.0
0.000
0.0
0.00
US
0.0
0.0
25
7
4.59E+03
22.79
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
26
7
5.01E+03
22,84
0.18
0.0
0.0
0,000
0.0
0.00
0.18
0.0
0.0
27
7
5.44E+03
22.89
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
28
7
5.88E+03
22.94
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
29
7
6.31 E+03
22.99
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
30
7
6.74E+03
23.04
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
3t
7
7.17E+03
23M
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
32
7
7.58E+03
23.13
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
33
7
7.99E+03
23.18
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
34
6
8.38E+03
23.22
0.18
0.0
0.0
0,000
0.0
0.00
0.18
0.0
0.0
10yr 24hr Storm - Sand Filter Division Truck Company and MP Company Interim Facilities Page 1 of 3
ii ii 1 7 91009
Riser
Riser
[tj i '
liruerzeuq.-�
'rinw
ionow
5tanige
Set,
Outflow
(Orifice)
(Wor)
Barrel
Rlt.,pwy
OriBuu#I-UiiuIvtd,ain
Weir
'rop of Mani
faun)
(er.,)
(cu f)
(R)
(ets)
(crs)
(ers)
(ets)
lets)
lelh)
(du
(cf,)
(efs)
35
6
8.75E+03
23.26
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
36
6
9.11 E+03
23.29
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
37
6
9.45E+03
23.33
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
38
5
9.78E+03
23.36
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
39
5
1.01 E+04
23.40
0.18
0.0
0.0
0.000
0.0
0.00
0.18
0.0
0.0
40
5
1.04E+04
23.43
0.24
0.0
0.0
0.000
0.0
0.00
0.18
0.1
0.0
41
5
1.07E+04
23.46
0.34
0.0
0.0
0.000
0.0
0.00
0.18
0.2
0.0
42
4
1.09E+04
23.48
0.47
0.0
0.0
0.000
0.0
0.00
0.18
0.3
0.0
43
4
1.11 E+04
23.51
0.61
0.0
0.0
0.000
0.0
0.00
0.18
0.4
0.0
44
4
1.14E+04
23.53
0.75
0.0
0.0
0.000
0.0
0.00
0.18
0.6
0.0
45
4
1.16E+04
23.55
0.89
0.0
0.0
0.000
0.0
0.00
0.18
0.7
0.0
46
4
1.17E+04
23.57
1.02
0.0
0.0
0.000
0.0
0.00
0.18
0.8
0.0
47
3
1.19E+04
23.58
1.15
0.0
0.0
0.000
0.0
0.00
0.18
1.0
0.0
48
3
1.20E+04
23.60
1.26
0.0
0.0
0.000
0.0
0.00
0.18
1.1
0.0
49
3
1.21 E+04
23.61
1.36
0.0
0.0
0.000
0.0
0.00
0.18
1.2
0.0
50
3
1.23E+04
23.62
1.46
0.0
0.0
0.000
0.0
0.00
0.18
1.3
0.0
51
3
1.24E+04
23.63
1.54
0.0
0.0
0.000
0.0
0.00
0.18
1.4
0.0
52
3
1.24E+04
23.64
1.61
0.0
0.0
0.000
0.0
0.00
0.18
1.4
0.0
53
3
1.25E+04
23.64
1.68
0.0
0.0
0.000
0.0
0.00
0.18
1.5
0.0
54
2
1.26E+04
23.65
1.73
0.0
0.0
0.000
0.0
0.00
0.18
1.5
0.0
55
2
1.26E+04
23.65
1.77
0.0
0.0
0.000
0.0
0.00
0.18
1.6
0.0
56
2
1.26E+04
23.66
1.81
0.0
0.0
0.000
0.0
0.00
0.18
1.6
0.0
57
2
1.27E+04
23.66
1.83
0.0
0.0
0.000
0.0
0.00
0.18
1.6
0.0
58
2
1.27E+04
23.66
1.85
0.0
0.0
0.000
0.0
0.00
0.18
1.7
0.0
59
2
1.27E+04
23.66
1.86
0.0
0.0
0.000
0.0
0.00
0.18
13
0.0
60
2
1.27E+04
23.66
1.87
0.0
0.0
0.000
0.0
0.00
0.18
1.7
0.0
61
2
1.27E+04
23.66
1.87
0.0
0.0
0.000
0.0
0.00
0.18
1.7
0.0
62
2
1.27E+04
23.66
1.86
0.0
0.0
0.000
0.0
0.00
0.18
1.7
0.0
63
2
1.27E+04
23.66
1.86
0.0
0.0
0.000
0.0
0.00
0.18
1.7
0.0
64
2
1.27E+04
23.66
1.84
0.0
0.0
0.000
0.0
0.00
0.18
1.7
0.0
65
1
1.27E+04
23.66
1.83
0.0
0.0
0.000
0.0
0.00
0.18
1.6
0.0
66
1
1.26E+04
23.66
1.81
0.0
0.0
0.000
0.0
0.00
0.18
1.6
0.0
67
1
1.26E+04
23.65
1.78
0.0
0.0
0.000
0.0
0.00
0.18
1.6
0.0
68
1
1.26E+04
23.65
1.76
0.0
0.0
0.000
0.0
0.00
0.18
16
0.0
69
1
1.26E+04
23.65
1.73
0.0
0.0
0.000
0.0
0.00
0.18
1.5
0.0
70
1
1.25E+04
23.65
1.70
0.0
0.0
0.000
OA
0.00
0.18
1.5
0.0
71
1
1.25E+04
23.64
1.67
0.0
0.0
0.000
0.0
0.00
0.18
1.5
0.0
72
1
1.25E+04
23.64
1.64
0.0
0.0
0.000
0.0
0.00
0.18
1.5
0.0
73
1
1.24E+04
23.64
1.61
0.0
0.0
0.000
0.0
0.00
0.18
14
0.0
74
1
1.24E+04
23.63
1.58
0.0
0.0
0.000
0.0
0.00
0.18
IA
0.0
75
1
1.24E+04
23.63
1.54
0.0
0.0
0.000
0.0
0.00
0.18
1.4
0.0
76
1
1.23E+04
23.62
1.51
0.0
0.0
0.000
0.0
0.00
0.18
1.3
0.0
77
1
1.23E+04
23.62
1.48
0.0
0.0
0.000
0.0
0.00
0.18
1.3
0.0
78
1
1.22E+04
23.62
1.44
0.0
0.0
0.000
0.0
0.00
0.18
1.3
0.0
79
1
1.22E+04
23.61
1.41
0.0
0.0
0.000
0.0
0.00
0.18
1.2
0.0
80
1
1.22E+04
23.61
1.38
0.0
0.0
0600
0.0
0.00
0.16
1.2
0.0
81
1
1.21 E+04
23.60
1.34
0.0
0.0
0.000
M
0.00
0.18
1.2
0.0
82
t
1.21E+04
23.60
1.34
0.0
0.0
0.000
0.0
0.00
0.18
1.1
0.0
83
1
1.20E+04
23.60
1.28
0.0
0.0
0.000
0.0
0.00
0.18
1.1
0.0
84
1
1.20E+04
23.59
L24
0.0
0.0
0.000
0.0
0.00
0.18
1.1
0.0
85
1
1.20E+04
23.59
1.21
0.0
0.0
0.000
0.0
0.00
0.18
1.0
0.0
86
1
1.19E+04
23.59
1.18
0.0
0.0
0.000
0.0
0.00
0.18
1.0
0.0
87
1
1.19E+04
23.58
1.15
0.0
0.0
0.000
0.0
0.00
0.18
1.0
0.0
88
0
1.19E+04
23.58
1.12
0.0
0.0
0.000
0.0
0.00
0.18
0.9
0.0
89
0
1.18E+04
23.57
1.09
0.0
0.0
0.000
0.0
0.00
0.18
0.9
M
90
0
1.18E+04
23.57
1.06
0.0
0.0
0.000
0.0
0.00
0.18
0.9
0.0
91
0
1.17E+04
23.57
1.03
0.0
0.0
0.000
0.0
0.00
0.18
0.8
0.0
92
0
1.17E+04
23.56
1-00
0.0
0.0
0.000
0.0
0.00
0.1B
0.8
0.0
93
0
1.17E+04
23.56
0.98
0.0
0.0
0.000
0.0
0.00
0.18
0.8
0.0
94
0
1.16E+04
23.56
0.95
0.0
0.0
0.000
0.0
0.00
0.18
0.8
0.0
95
0
1.16E+04
23.55
0.92
0.0
0.0
0.000
0.0
0.00
0.18
0.7
0.0
96
0
1.16E+04
23.55
0.90
0.0
0.0
0.000
0.0
0.00
0.18
0.7
0.0
97
0
1.15E+04
23.55
0.87
0.0
0.0
0.000
0.0
0.00
0.18
0.7
0.0
98
0
1.15E+04
23.54
0.85
0.0
0.0
0.000
0.0
0.00
0.18
0.7
0.0
99
0
1.15Et04
23.54
0.83
0.0
0.0
0.000
0.0
0.00
0.18
0.6
0.0
100
0
1.14E+04
23.54
0.81
0.0
0.0
0.000
0.0
0.00
0.16
0.6
0.0
101
0
1.14Ef04
23.53
0.78
0.0
0.0
0.000
0.0
0.00
0.18
0.6
0.0
102
0
1.14E+04
23.53
0.76
0.0
0.0
0.000
0.0
0.00
0.18
0.6
0.0
103
0
1.13E+04
23.53
0.74
0.0
0.0
0.000
0.0
0.00
0.18
0.6
0.0
104
0
1.13E+04
23.52
0.72
0.0
0.0
0.000
0.0
0.00
0.18
0.5
0.0
105
0
1.13E+04
23.52
0.70
0.0
0.0
0.000
0.0
0.00
0.16
0.5
0.0
106
0
1.13E+04
23.52
0.68
0.0
0.0
0.000
0.0
0.00
0.18
0.5
0.0
107
0
1.12E+04
23.51
0.66
0.0
0.0
0.000
0.0
0.00
0.18
0.5
0.0
108
0
1.12E+04
23.51
0.65
0.0
0.0
0.000
0.0
Mo
0.18
0.5
0.0
109
0
1.12E+04
23.51
0.63
0.0
0.0
0.000
0.0
0.00
0.18
0.4
0.0
110
0
1.11 E+04
23.51
0,61
0.0
0.0
0.000
0.0
0.00
0.18
0.4
0.0
10yr 24hr Storm
- Sand Filter
Division Truck
Company and MP Company Interim Facilities
Page 2 of 3
BY:_
----
Riser
Riser
Rrner,ue,
'Time
InOow
$drtage
Slege
Oelnow
(OriOec)
(Weir)
Rurrel
RRspwy Orifiaertl
Underdmin
Weir
'I'apofDann
(ndn)
(ers)
teen)
(n)
nefs)
refs)
refs)
(efs)
)err) eery)
(rrr)
refs)
refs)
ill
0
1.11 E.04
23.50
0.60
0.0
0.0
0.000
0.0 0.00
0.18
0.4
0.0
112
0
1.11E+04
23.50
0.58
0.0
0.0
0,000
0.0 0.00
0.18
0.4
0.0
113
0
1.11 E+04
23.50
0.57
0.0
0.0
0.000
0.0 0.00
0.18
0.4
0.0
114
0
1.10E+04
23.50
0.65
0.0
0.0
0.000
00 0.00
0.18
0.4
0.0
115
0
1.10E+04
23.49
0.54
0.0
0.0
0.000
0.0 0.00
0.18
0.4
0.0
116
0
1.10E+04
23.49
0.52
0.0
0.0
0000
0.0 0.00
0.18
0.3
0.0
117
0
1.10E+04
23.49
0.51
0.0
0.0
0.000
0.0 0.00
0.18
0.3
0.0
118
0
1.09E+04
23.49
0.50
0.0
0.0
0.000
0.0 0.00
0.18
0.3
0.0
119
0
1.09E+04
23.48
0.48
0.0
0.0
0.000
0.0 0.00
0.18
0.3
0.0
120
0
1.09E+04
23.48
0.47
0.0
0.0
0.000
0.0 0.00
0.18
0.3
0.0
121
0
1.09E+04
23.48
0.46
0.0
0.0
0.000
0.0 0.00
0.18
0.3
0.0
122
0
1.09E+04
23.48
0.45
0.0
0.0
0000
0.0 0.00
0.18
0.3
0.0
123
0
1.08E+04
23.47
0.44
0.0
00
0.000
0.0 0.00
0.18
0.3
0.0
124
0
1.08E+04
23.47
0.43
00
0.0
0.000
0.0 0.00
0.18
0.2
0.0
125
0
1.08E+04
23.47
0.42
0.0
0.0
0.000
0.0 0.00
0.18
0.2
0.0
10yr 24hr Storm - Sand Filter Division Truck Company and MP Company Interim Facilities Page 3 of 3
9
8
7
6
H 5
w
c+
3
LL
4
3
2
M
10yr 24 hr Routing - Sand Filter
0 50 100 150 200 250 300 350 400 450
Time (min)
4 Inflow Hydrograph Outflow Hydrograph
Brunswick Nuclear Plant Unit 1 Capacitor Bank Installation
Underdrain Calculations
Drainage Area D only
Per pag 11-9 filter media has a permeability'k' of 3.5 ft/day
Area of Sand Filter
4500
SF
Pipe Mannings N
0.011
Pipe Slope
0.005
Wit
Per pag 11-9 filter media has a permeability'k'
of 3.5 ft/day
Therefore, k=
0.146
ft/hr
Q=k'Area
Q=
0.182
cfs
Safety Factor=
10
Qmodified=
1.82
cis
D=
1.76
in
Check recovery of treatment volume
WQV (1.5") required 8,494 ft3 Designed at 2x treatment volume on-line
Assuming constant Q,t= 12.9 hours
This is consistent with the time derived from 1 yr routing spreadsheet
�\x ...... .
DA
�X
f
v
X
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N,
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pow
7w332.0617
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2
COENR STORMWAIER PERMIT PACKAGE
EXISTING CONDITIONS
Progress Energy
CZ Ll �-T dl T I
Dewberry
I -- 7tz'
---F -F uwse —I L,,� I k� I TqTI.
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I
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LD
2.
NCDNR SORMATER PERMT P
NEWS
WORKTDRAINAGE AREA MAPACKAGE 11
Progress Energy
i
ethe
CW
•
• h
k-AINI
SCALE 1:12000 -
0 100 200 300 400 500 600 700 800 900 YARDS
0 1000 2000 FEET
�'� 0 100 200 300 400 500 600 700 800 METERS
9°W
078 ° 01' 00.00" N
Soil Map -Brunswick County, North Carolina
(Brunswick County Nuclear Plant)
MAP LEGEND
MAP INFORMATION
Area of Interest (AOI)
Very Stony Spot
Original soil survey map sheets were prepared at publication scale.
( j
Area of Interest (AOI)
Viewing scale and printing scale, however, may vary from the
+
Wet Spot
original. Please rely on the bar scale on each map sheet for proper
Soils
A
Other
map measurements.
Q
Soil Map Units
Special
Line Features
Source of Map: Natural Resources Conservation Service
Special
Point Features
�`'•
��
Gully
Web Soil Survey URL: http://websoilsuNey.nres.usda.gov
(9
Blowout
Coordinate System: UTM Zone 17N
v—,"✓
Short Steep Slope
®
Borrow Pit
This product is generated from the USDA-NRCS certified data as of
Other
the version date(s)listed below.
X
Clay Spot
Political Features
Soil Survey Area: Brunswick County, North Carolina
0
Closed Depression
Municipalities
Survey Area Data: Version 12, Feb 27, 2008
X
Gravel Pit
p
Cities
Date(s) aerial images were photographed: 1999: 3/6/2000
Gravelly Spot
,�j
Urban Areas
The orthophoto or other base map on which the soil lines were
®
Landfill
Water Features
compiled and digitized probably differs from the background
0
Oceans
imagery displayed on these maps. As a result, some minor shifting
A
Lava Flow
of map unit boundaries may be evident.
,l,,
Marsh
I
Streams and Canals
4t
Mine or Quarry
Transportation
Rails
Miscellaneous Water
Roads
�.
Perennial Water
N
Interstate Highways
y
Rock Outcrop
N
US Routes
}
Saline Spot
State Highways
Sandy Spot
Local Roads
Severely Eroded Spot
1�
Other Roads
0
Sinkhole
Slide or Slip
P
Sodic Spot
Spoil Area
a
Stony Spot
Z
i
N
�^
O
"(
O
:O
USDA Natural Resources Web Soil Survey 2.0 3/10/2008
Q= Conservation Service National Cooperative Soil Survey Page 2 of 3
Soil Map —Brunswick County, North Carolina
Brunswick County Nuclear Plant
Map Unit Legend
,z•. F. .Brunswick County, North Carolina (NC019) .. ..
.,
,! 1 Map Unit%Symbol �'Is,i
I 1� Map Unit Name t��"
I' Acres irAOI , '= i F
= { Percent of AOIi lr
BaB
Baymeade fine sand, 1 to 6
11.1
2.6%
percent slopes
BrB
Bragg fine sandy loam, 2 to 6
342.3
80.0%
percent slopes
GoA
Goldsboro fine sandy loam, 0 to
3.3
0.8%
2 percent slopes
LA
Longshoal muck
31.9
7.4%
NhE
Newhan fine sand, dredged, 2
13.4
3.1%
to 30 percent slopes
W
Water
17.4
4.1%
YaB
Yaupon silty clay loam, 0 to 3
8.7
2.0%
percent slopes
Totals for Area of Interest (AOI)
428.2
100.0%
Natural Resources Web Soil Survey 2.0 3/10/2008
Conservation Service National Cooperative Soil Survey Page 3 of 3
LMG "; Ii. �J P'�L
LAND MANAGEMENT GROUP mc.
.lU ? 200�
Environmental Consultonts
January 12, 2009
John Magee P.E.
Silar Services
983 Butler Pilce
Blue Bell, PA 19422
LLi
Reference: Stormwater basin study for the proposed basin areas for the Progress Energy
Plant, Located near South Port, NC.
Dear Mr. Magee:
On January 12, 2009, Land Management Group, Inc. had the pleasure of
evaluating the Progress Engery proposed stormwater basin area. 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.
The soils at this site are mapped as Bragg soils in the Soil Survey of Brunswick
County (USDA, 1986). Actual soil borings 18-20 confirms the soil to be a
Baymeade/Foreston complex soil series, Appendix B. The Baymeade and Foreston soil
series can best be described as soils that formed from depositional events of sandy and
loamy marine sediments.
The seasonal high water table is normally evident by observation of
redoximorphic features suggesting past conditions of saturation and reduction. There is
evidence of redoximorphic features at 70" in Boring 18, 5 1 " in boring 19 and 49" in
boring 20 (see soil profile descriptions in Appendix B and Test Area Map Appendix A).
No physical water levels were recorded on January 12, 2009 within test depth of soil
borings 18 and 19, the physical water level was at 101" in boring 20, as documented in
the soil profile descriptions, Appendix B. All recorded depths are from the existing
surface as noted in the soil profile descriptions, Appendix B. The official published
description and physical and chemical data for the Baymeade and Foreston soil series are
shown in Appendix C for comparison.
In summary, this site has an area that. is proposed for stormwater basin placement.
This area has soils that have a seasonal high water tables at 70" in boring 18, 51" in
boring 19 and 49" in boring 20. If infiltration rates are required, then they can be
provided at the client's request. Please do not hesitate to contact me if you have any
questions with this report. I may be reached at 910-452-0001, 910-471-0505 or at
iihowell(glmeroup.net .
Sincerely,
Nicholas Howell
NC Licensed Soil Scientist #1294
www.lmgroup.net • info@lmgroup.net ^ Phone: 9'
3805 Wrightsville Ave., Suite 15, Wilmington, NC 28403
C 28402
Progress Energy
Brunswick County
Stormwater Evaluation
Test Area Map
January 12, 2009
�� liw. t✓ �r-
JUN z r 20Q9
''Drawing Not To Scale*
JOSoil Boring *-Drawing Provided By Others*
Land Management Group, Inc.
Job #30-09-007
Environmental Consultants
P.O. Box 2522
John Magee
Wilmington, NC
Drawing by N.P.H.
w .LNlGrouo.net
Phone: 910452-0001 Fax: 910452-0060
Append x B
Soil Profile Descriptions
l t}^�� Ili.+ �✓ .Il.i�
1UN 2 2009
lUN 2 < 2005
Boring 18 Side Slope 1-2%
Fill 0-36" Loamy Sand with few Sandy Loam bodies, structureless.
Ab — 36-40" Loamy Sand, granular very friable non sticky non plastic, 1 OYR 3/1.
Bw — 40-53" Loamy Sand, weak medium subangular blocky, fiiable non sticky non
plastic, 1 OYR 4/4.
E — 53-70" Sand, granular very friable, non sticky non plastic, 1 OYRE 7/4.
Bt — 70-107" Sandy Loam, weak medium subangular blocky, friable slightly sticky non
plastic, I OYR 5/8 with 7.5YR 518 and 5Y 6/1 mottles.
Btg — 107-120" Sandy Loam, weak medium subangular blocky, friable, slightly sticky
non plastic, 6Y 6/1 with 1 OYR 5/6 mottles.
Physical Water: NA 9\�\
SHWT:70" =5.a3' a+ -S.a3- lba� e,,,
Boring 19 Side Slope 2-4%
Fill 0-29" Loamy Sand with few Sandy Loam bodies, structureless.
Ab — 29-33" Loamy Sand, granular very friable non sticky non plastic, 1 OYR ,i/1.
E — 33-41 " Sand, granular, very friable, non sticky non plastic, 1 OYR 7/2.
Bh—41-45" Loamy Sand non cemented, granular friable non sticky non plastic, 1 OYR
3/3.
E' — 45-51" Sand granular friable non sticky non plastic, IOYR 7/3.
Btg— 51-120" Sandy Loam with few Sandy Clay Loam bodies, weak medium subangular
blocky slightly sticky slightly plastic, 5Y 6/1 with 1 OYR 5/8, 7.5YR 5/8 and 5YR 5/8
mottles.
Physical Water: NA
SHWT: 5 1 " 7 ti.a5' aa.a9- y.a6 -
Boring 20 Foot Slope 1-2%
Fill — 0-24" Loamy Sand with few Sandy Loam bodies, structureless.
Bh — 24-27" Loamy Sand non cemented, granular friable non sticky non plastic, 1 OYR
3/3.
E — 27-49" Sand granular friable non sticky non plastic, 1 OYR 7/3.
Bt — 49-120"Sandy Loam with few Sandy Clay Loam bodies, weak medium subangular
blocky slightly sticky slightly plastic, 1 OYR 5/8 with 5Y 6/1, 7.5YR 5/8 and 5YR 5/8
mottles.
Physical Water: 101"
SHWT:51"- `i•Dr3' ai.a5-'4.a5- 17 ele4.
ENVIRONMENTAL. SERVICES, INC.
524 S. NEW HOPE ROAD
RALEIGH. NORTH CAROLINA 27610
919-212-1760 • FAX 919-212-1707
www.eiiviroiimeiitalservicesinc.com
October 31, 2008
Ms. Christina Hcarn
Progress Energy Carolinas, Inc.
100 East Davie Street
TPP 18
Raleigh, NC 27601
Re: Brunswick Nuclear Plant Capacitor Bank Addition
Additional Parcel Evaluation
Brunswick County, North Carolina
Ms. Hearn:
JUNI ?, 200^
ER06-039.25
Thank you for contacting Environmental Services, Inc., (ESI) concerning the above referenced project.
At your request, we have conducted a jurisdictional wetland and stream delineation and Global
Positioning System (GPS) data collection for an additional parcel at the Brunswick Nuclear Plant,
which is located in Brunswick County, Notch Carolina.
This letter report outlines our findings pertaining to the jurisdictional delineation. If permitting is
necessary for this project, an ousite review by the U.S. Army Corps of Engineers will likely be
warranted to review the wetland delineation. Please call me if you have any questions or comments.
As always, thank you for allowing ESI to provide services to Progress Energy Carolinas.
Sincerely,
ENVIRONMENTAL SERVICES, INC.
; 4r j v
Robert Turnbull
Senior Scientist
Cc: Buzz Bryson
FLORIDA • GEORGIA
)ihrbour
Ecology Division Manager
NORTH CAROLINA • SOUTH CAROLINA • MARYLAND • OHIO
[R1, —�4, --- _—�' - �-
JUN 2
Natural Resource Assessment for the
Brunswick Nuclear Plant Capacitor Bank Addition
Additional Parcel
Brunswick County,.North Carolina
Prepared for:
d Progress Energy
Progress Energy Carolinas, Inc.
100 East Davie Sheet
TPP 18
Raleigh, North Carolina 27601
Prepared by:
LNVIRONMLNTAL SERVICES, INC.
524 South New Hope Road
Raleigh, North Carolina 27610
October 2008
ENVIRONMENTAL SERVICES, INC.
Natural Resource Assessment for the
Brunswick Nuclear Plant Capacitor Bank Addition
Additional Parcel
Brunswick County, North Carolina
October 2008
•'.1,-
JUN 2 Z00
1 t
Project Description.
The additional parcel for the proposed capacitor bank addition project is located at the Brunswick
Nuclear Plant in Brunswick County, North Carolina. The approximately 4.96-acre project site is
depicted on the enclosed U.S. Geological Survey (USGS) map and aerial photograph. The proposed
project area is located east of NC Highway 87, northeast of Southport and on the northwest side of the
Brunswick Nuclear Plant property (Figure 1).
Proiect Understandine
Environmental Services, Inc., (ESI) was tasked by Progress Energy Carolinas, Inc. (PEC) to provide
the following services for the Brunswick Plant project:
• Jurisdictional wetland, stream, and surface water delineation,
• Global Positioning System (GPS) data collection,
• Report and graphics preparation.
ESI was asked to delineate all jurisdictional features within the project study area. The project
boundary was identified to ESI by PEC during the field investigation. The project boundary on the
accompanying figures is an approximation based on an area identified by PEC. Two adjacent parcels
were previously evaluated by ESI under a previous agreement.
Backeround Research
Prior to the initiation of field efforts, available resources were reviewed, including the USGS 7.5-
minute topographic quadrangles of Southport, NC (USGS 1992), and the National Wetland Inventory
(N\VI) quadrangles (USFWS 1992).
Water Resources
The project study area is in subbasin 03-06-17 of the Cape Fear River Basin and in USGS hydrologic
unit 03030005 (USGS 1974, NCDWQ 2008).
A Best Usage Classification (BUC) is assigned to waters of North Carolina based on the existing or
contemplated best usage of various bodies of water. Nancy's Creek, the receiving water for the
project study area, occurs approximately 600 feet northwest of the project study area. Nancy's Creek
(Stream Index # 18-88-1-3) has been assigned a BUC of SC; Sw, HQW (NCDWQ 2008). Class SC
waters are tidal salt waters protected for secondary recreation, fishing, aquatic life (including
propagation and survival), and wildlife. Secondary recreation is any activity involving human body
2
ENVIRONMENTAL SERVICES, INC'I. ,
.JUN 2009
contact with water on an infrequent and incidental basis. The supplemental classificationiSw=indicates--
swamp waters, which have low velocities and other natural characteristics that are different from and
adjacent streams. The supplemental classification HQW indicates High Quality Waters, which are
waters that are rated as excellent based on biological and physical/chemical characteristics.
Section 404 & 401 Wetlands and Surface Waters
Section 404 of the Clean Water Act (CWA) requires regulation of discharges into "Waters of the
United States". Although the principal administrative agency of the CWA is the U.S, Environmeptal
Protection Agency (EPA), the U.S. Army Corps of Engineers (ALOE) has the majority of the
responsibility for implementation, permitting, and enforcement of provisions of the Act. The ACOE
regulatory program is defined in 33 CFR 320-330. Water bodies such as rivers, lakes, and streams are
subject to jurisdictional consideration under the Section 404 program. However, by regulation,
wetlands are also considered "Waters of the United States". Wetlands have been described as:
"Those areas that are inundated or saturated by surface or ground water at a frequency
and duration sufficient to support, and that under normal circumstances do support, a
prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands
generally include swamps, marshes, bogs, and similar areas."[33 CFR 328.3(b) (1986)]
According to the 1987 ACOE Wetland Delineation Manual (DOA 1987), areas must exhibit three
distinct characteristics to be considered jurisdictional wetlands: l) display a prevalence of hydrophytic
(water tolerant) plants, 2) area dominated by hydric soils, and 3) possess sufficient wetland hydrology
indicators within 12 inches of the ground surface. Vegetation, soils, and hydrology data were
collected during the field surveys in order to determine whether the three criteria were satisfied within
each potential wetland area. Stream channels, if present within the project study area, were also
delineated following criteria established by the N.0 Division of Water Quality (DWQ) and ACOE.
Intermittent and perennial stream channels are also considered Waters of the United States under
Sections 404 and 401 of the CWA. The jurisdictional wetland and stream delineation effort associated
with this project occurred on 14 October 2008. The CiPS data collection occurred concurrently with
the delineation effort.
The ACOE "Rapanos" decision allows ACOE and EPA to establish Clean Water Act (CWA)
jurisdiction under one of two standards. The first standard upholds CWA jurisdiction if the water
body is "relatively permanent", and its adjacent wetlands directly abut the water body. The second
standard upholds jurisdiction if a water body, in combination with all wetlands adjacent to that water
body, has a "significant nexus" with traditional navigable waters.
• Relatively Permanent Waters — A water body is relatively permanent if its flow is year round
or its flow is continuous at least seasonally (e.g. three months). Wetlands adjacent to a
"relatively permanent" tributary are also jurisdictional if those wetlands directly abut such a
tributary.
3
ENVIRONMENTAL SERVICES, INC.
JUN 2 2006
• Adjacent — Defined by ACOE and EPA as bordering, contiguous, or neighboring.=Wetlands
separated from other waters of the U.S. by man-made dikes or barriers, berms, or dunes and
the like are adjacent.
• Abutting — Wetlands that are not separated from the tributary by an upland feature are
abutting.
• Signy7cant Alexrrs - A water body will be determined to have a "significant nexus" if its
functions affect the chemical, physical, and biological integrity of a downstream traditional
navigable water.
Coastal Area Manneement Act (LAMA)
The North Carolina Division of Coastal Management (NCDCM) and the Coastal Resources
Commission (CRC) oversee CAMA, which affords additional protection to certain areas located
within any of the twenty (20) coastal counties. Activities that impact certain coastal wetlands that are
under the jurisdiction of CAMA, also known as Areas of Environmental Concern (AEC), typically
require CAMA approval as granted through the NCDCM. Prc-determined areas within the project
study area will qualify as AECs because they meet one or more of the following criteria defining
AECs: 1) public trust waters; 2) estuarine waters; 3) coastal shorelines; and 4) coastal wetlands.
Public trust waters are the coastal waters and submerged lands that every North Carolinian has the
right to use. These areas often overlap with estuarine waters, but also include many "inland" fishing
waters as defined by the North Carolina Marine Fisheries Commission. Estuarine waters are the
state's oceans, sounds, tidal rivers and their tributaries, which stretch across coastal North Carolina
and link to the other parts of the estuarine system: public trust areas, coastal wetlands, and coastal
shorelines. Coastal shorelines include all lands within 75 feet of the normal high water level of
estuarine waters. Coastal wetlands include any marsh in the 20 coastal counties that regularly or
occasionally flood by lunar or wind tides, and includes one or more of the ten -listed CAMA plant
species (NCDCM 2002). ,
Delineation Results
One (1) Section 404 wetland was identified and delineated within the project study area (Figure 2).
No CAMA wetlands were found within the project study area, although CAMA wetlands do occur
northwest of the site near Nancy's Creek. The Section 404 wetland was flagged with sequentially
numbered pink -and -black striped and solid blue flagging and is labeled Wl on Figure 2. A GPS
based layout depicting the approximate extent and approximate location of this wetland was produced.
This is not intended to be a replacement for a traditional survey nor is it intended to be used as such.
ACOE Routine Welland Determination forms were also completed during the delineation.
Welland Data
One (1) wetland type occurs within the project study area: palustrine emergent (PFM), pursuant to the
Cowardin Classification System (Cowardin et al. 1979). Palustrine wetlands are defined as all non -
tidal wetlands dominated by trees, shrubs, persistent emergent, emergent mosses or lichens, and all
such wetlands that occur in tidal areas where the salinity due to ocean -derived salts is below 0.5 parts
Fit
li�
ENVIRONMENTAL SERVICES, INC. JUN 2 2000
17
per thousand (ppt). The palustrine wetlands within the project study area include areas dominated by
emergent vegetation, thus the PEM designation.
The PEM wetland consists of a primarily herbaceous community. Dominant species within the
wetland area includes soft rush (Juncos effusos) and common reed (Phragnittes australrs). Hydric
soils and primary hydrology indicators are present in the wetland area. W1 is directly abutting
Nancy's Creek outside of the project study area. Table 1 contains the wetland data collected within
the project study area.
Table 1. Wetland data for the Brunswick Nuclear Plant project.
Wetland `
Coivardih Wetland i
,"•Approximate Size "
Riparian
-Classification
Ac'es(ac} *
Y/N
Wl
PEM
0.22
N
TOTAL:
0.22
'Acreage based on non -survey grade GPS data collected with a Trimble GcoXT and is not a
substitute for a PIS prepared survey.
Wetland and Stream Permittine
Dredge and fill activities in "Waters of the United States" must be authorized by ACOE pursuant to
Section 404 of the CWA and also by DWQ pursuant to Section 401 of the CWA. Waters considered
navigable by the ACOE are also subject to permitting of obstructions to navigation under Section 10
of the Rivers and Harbors Act. There are no navigable waters within the project study area. Activities
authorized by the ACOE are subject to further water quality requirements per Section 401 of the
CWA. In North Carolina, the DWQ administers the Section 401 Water Quality Certification process.
Coordination is recommended with ACOE in order to determine the permitting requirements for this
project. Compensatory mitigation can be required by ACOE for projects determined to have a
significant impact on Waters of the United States, including wetlands. Impacts to AECs will require a
permit from NCDCM. There are no AECs within the project study area.
Summary
ESI identified one (1) Section 404 wetland within the project study area. Wetlands within the
proposed project area total approximately 0.22 acre under the jurisdiction of both Section 404 and
Section 401 of the Clean Water Act. Impacts to jurisdictional wetlands should be avoided and
minimized as much as practicable. Unavoidable impacts will require permitting with ACOE and
DWQ.
5
ENVIRONMENTAL SERVICES, INC.
JUN 2 ZOOS
REFERENCES
Cowardin, L.M., V. Carter, F.C. Goblet, and E.T. Laroe. 1979. Classification of Wetland and
Deepwater Habitats of the United States. 1J.S, Fish and Wildlife Service, USFWS/OBS
79/31. U.S. Department of Interior. 131 pp.
[DOA] Department of the Army Enviromnental Laboratory. 1987. Corps of Engineers Wetlands
Delineation Manual, Technical Report Y-87-1, U.S. Army Engineer Waterways Experiment
Station, Vicksburg, MS. 100 pp. +appendices.
[NCDCM] North Carolina Division of Coastal Management. 2002. CAMA Handbook for
Development in Coastal North Carolina. Internet Address: dcm2.ennstate.nc.us.
[NCDWQ] N.C. Division of Water Quality. 2004. Cape Fear River Basinwide Assessment Report.
336 pp.
[NCDWQ] N.C. Division of Water Quality. 2008. Basinwide Information Management System
(BIMS). Stream Classification. <h2o.enr.statc.nc.us/bims> accessed October 2008.
[USFWS] U.S. Fish and Wildlife Service. 1992. National Wetland Inventory Mapping. Southport,
NC 7.5-Minute Topographic Quadrangle maps.
[USGS] U.S. Geological Survey. 1992. Southport, North Carolina. Topographic 7.5-minute
quadrangle map. United States Geologic Survey, Washington, D.C.
[USGS] U.S. Geological Survey. 1974. Hydrologic Unit Map.
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Project Location
Brunswick Nuclear Plant Second
Capacitor Bank Addition
Project: ER06039.25
Date: Oct2008
Drwn/Chkd: EW/RT
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Brunswick County, North Carolina
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Brunswick Nuclear Plant Second
Capacitor Bank Addition Drwn/Chkd: EW/RT
Brunswick County, North Carolina Figure: 2
E7--w
.'Y a Exhibit A
ZUU9 RFP No.
Page I of 2
Brunswick Nuclear Plant Unit 1 Capacitor Bank Installation
Initial Grading
Scope of Work
01/15/09
Clear and grade the sites per PGNC's Grading Specification, Schedule of Units, Approved
Erosion Control Plan and PGNC's related drawings complete to include:
Progress Energy Carolinas (PGNC) will obtain and pay for the following permits :
NCDENR - Erosion and Sediment Control Permit
2. NCDENR - Stormwater Management Permit
3. Brunswick County Stormwater and Engineering Approval
4. CAMA (if necessary, to be prepared by PGNC)
2. No work can start on the site until the required permits have been approved.
Furnish and install the "Temporary Construction Entrance" at all entrances.
4. Install the silt fence. Clear only enough area to install the silt fence.
Clear only the area at and around all "Sediment and Erosion Control Devices" (Temporary
Sediment Traps earthen berms and ditches, etc.).
6. Install the "Sediment and Erosion Control Devices" (Temporary Sediment Traps & etc.).
Install the temporary earthen berms and ditches.
Temporary seed and mulch all "Sediment and Erosion Control Devices" including the
earthen berms and ditches within 15 working days after completion.
Complete all clearing and grubbing of the site including the removal of all trees, stumps,
trash, or any concrete from the site.
Page I of 2
Rev. 7/01 /07
Exhibit A
RFP No.
JUN ? : 2M,
10. Grade the access road and substation site to the required elevations.
11. Install the storm drainage system including the storm sewer pipes with the associated
junction boxes along with the required outlet protection.
12. Install and compact ABC stone on the access road and on a material storage yard area
within the capacitor bank and circuit breaker fenced areas.
13. Permanently seed and mulch all disturbed areas on the site, except the area that will be
inside the fence, after completion of grading and within 15 working days or 30 calendar
days, whichever is shorter.
14. "Sediment and Erosion Control Devices" (Temporary Sediment Traps, temporary earthen
berms and ditches, silt fences & etc.) shall be maintained through completion of the
project. The contractor shall make any repairs as necessary to the Sediment and Erosion
Control Devices" (Temporary Sediment Traps, temporary earthen berms and ditches, silt
fences & etc.) throughout the life of his contract for the project. The contractor shall keep
all sediment on site.
15. The contractor shall keep the Brunswick Nuclear Plant Access Road free of soil, stone, and
debris from the construction site. It shall be the responsibility of the contractor to remove
any soil, stone, and debris deposited onto the roadway by sweeping, washing or by other
methods.
16. The contractor shall inspect all "Sediment and Erosion Control Devices" at least once
weekly. The contractor shall also inspect all the "Sediment and Erosion Control Devices"
after each rainfall of inch or more within 24 hours after the rain has stopped. In North
Carolina, at each inspection of the "Sediment and Erosion Control Devices", the contractor
is required to complete the "Stormwater Inspections for General Permit NCGO10000-Land
Disturbing Activities form and post it in the permit box located on site.
Page 2 of 2
Rev. 7/01 /07
INITIAL GRADING
SCHEDULE OF UNITS
for the
I11
Exhibit B
RFP No.
Page 1 of 7
E7-Z�
o ? z00s I
02/17/09
Note: Quantities typed in italic and enclosed in prentiees listed below with each bid unit are
estimated quantities and are not guaranteed to be correct.
1. Furnish and install silt fence according to PGNC drawings RDC-54512, RDC-54513, , RDC-
54514, the approved Erosion Control Plan, grading specifications, and/or as specified by
PGNC's Designated Representative.
(1800 linear feet) Per Linear Foot
2. Grading the temporary erosion control devices: This price shall include the grading of the
earth berms, diversion channels and the temporary sediment trap to the elevations specified
in the Erosion Control Plan, as approved by the state of North Carolina and as shown on
PGNC drawings RDC-54511, RDC-54512, RDC-54513, and RDC-54514. All elevations on
RDC-54511, RDC-54512, RDC-54513, and the approved Erosion Control Plan are finished -
dirt elevations. (Note: This price does not include silt fences)
(Lump Sum) Lump Sum
3. Furnish and install the "temporary seeding", fertilizing, and mulching of all temporary
berms, swales, sediment traps, and other erosion control areas as indicated on PGNC
drawings RDC-54512, RDC-54513, and RDC-54514 and/or as specified by the approved
Erosion Control Plan and PGNC's Designated Representative.
(2 acres)
Lump Sum
4. Clearing, grubbing, and disposal by "Hauling On -Site to an Approved Area Located on
Brunswick_ Property as Indicated by PGNC's Designated Representative" of all wood, trees,
stumps and trash from the sites including cut -and -fill slopes, diversion channels, borrow pits,
and erosion control areas as specified in the approved Erosion Control Plan and as shown on
PGNC drawings RDC-54508, RDC- 54511, RDC-54512, and RDC-54513.
(1.5 acres)
Lump Sum
5. Stripping of the substation lot and access drive areas and all cut and fill slopes to a
maximum depth of six (6) inches as specified in the approved Erosion Control Plan and as
shown on PGNC drawings RDC-54511, RDC-54512, RDC-54513 and as indicated in
PGNC's grading specifications and/or as specified by PGNC's Designated Representative.
Rev.7/01/07
The stripping material can be disposed of "on -site" in an
Designated Representative.
Exhibit B [!R�E,7
RFP No. „ `✓ .�
Page 2 of 7
JUN 2 < 20P
area indicated -.by PGNC's
(2,022 cu. yds. Total Strippings) Lump Sum
6. Stripping of the sites lot and access drive areas and all cut and fill slopes to a maximum
depth of six to twelve (6-12) inches as specified in the approved Erosion Control Plan and as
shown on PGNC drawings RDC-54511, RDC-54512, RDC-54513, RDC-54514 and as
indicated in PGNC's grading specifications and/or as specified by PGNC's Designated
Representative. The stripping material can be disposed of "on -site" in an area indicated by
PGNC's Designated Representative.
(2,020 cu. yds. Total Strippings) Lump Sum
(1,320 cu. yds. in Cut Area)
(700 cu. yds. in Fill Area)
7. Grading and compacting the sites lot and access drive to the elevations specified in the
approved Erosion Control Plan and as shown on PGNC drawings RDC-54511, RDC-54512,
RDC-54513, to 95% standard proctor maximum density compaction. All grades on RDC-
54511, RDC-54512, RDC-54513 and the approved Erosion Control Plan are finished -dirt
grades. This price shall include the grading of all permanent ditches, swales and the
compliance with the Erosion Control Plan, as approved by the state of North Carolina. It
shall be the responsibility of the Contractor to acquire the needed fill dirt from an "off -site"
location to complete the grading of the substation lot and access drive. This off -site location
must be an approved and licensed borrow pit.
(Cut=11,565 cu. yds.)
(Fill = 630 cu. yds.)
(Cut Area=11,565 —1,320 (cud strippings) =10,245 cu. yds.)
(Fill Area = 630 + 700 (fill strippings) =1,330 cu. yds.)
(Select Sand Fill for BMP = 8,200 cue. yds) (See RDC-54514 for specifications for select sand)
Lump Sum
8. The contractor shall employee an independent construction material engineering testing firm
to monitor the proofrolling of the site after the strippings have been removed and to inspect
and test the compacted fill areas in the substation lot and access road areas as indicated on
PGNC grading specifications provided by PGNC's Designated Representative. Copies of the
test results shall be furnished to PGNC's Designated Representative and others as indicated
by PGNC's Designated Representative. PGNC's Designated Representative must approve
the independent construction material engineering testing firm. Included with this bid
proposal, the contractor shall furnish the name, address and a phone number of the
independent construction material engineering testing firm for approval.
Testing Firm:
Name:
Rev.7/01/07
Exhibit B
RFP No.
Page 3 of
Address: JUN 2009
Phone #• Lz:
(Lump Sum) Lump Sum
9. Furnish and install Geotextile Fabric in the access road under the ABC stone roadbed to
improve the stability of the access road foundation and under all riprap or erosion control
stone as shown on PGNC drawings RDC-54510 and RDC-54514.
(815 sq. yds.) Per Square Yard
10. Excavation and disposal of unsuitable materials from the site lot and access drive areas. Any
unsuitable materials must be disposed of "on -site" in an area as indicated by PGNC's
Designated Representative.
(2,022 cu. yds.) Per Cubic Yard
11. Backfill and compact the fill material required, due to the excavation of unsuitable material
removed in the substation lot and access drive areas. This price shall include obtaining the
needed material from an "off site" location, for the backfill and the compacting of the
backfill material to 95% standard proctor maximum density compaction. It shall be the
responsibility of the Contractor to acquire the needed fill dirt from an "off -site" location for
the required backfill. This off -site location must be an approved and licensed borrow pit.
(700 cu. yds.) Per Cubic Yard
12. Furnish and install Class B erosion control stone from any local stone quarry as shown on
PGNC drawings RDC-54512, RDC-54513, RDC-54514 and according to PGNC grading
specifications provided by PGNC's Designated Representative.
(200 tons) Per Ton
13. Furnish and install Class A erosion control stone from any local stone quarry as shown on
PGNC drawings RDC-54512, RDC-54513, RDC-54514 and according to PGNC grading
specifications provided by PGNC's Designated Representative.
(2 tons)
Per Ton
14. Furnish and install No. 57 washed stone from any local stone quarry as shown on PGNC
drawings RDC-54512, RDC-54513, RDC-54514 and according to PGNC grading
specifications provided by PGNC's Designated Representative.
Rev.7/01/07
(15 tons)
Exhibit BRFP No. �'�
Page 4 of 7 lU^! r 200
Per Ton
15. Furnish and install No. 67 washed stone from any local stone quarry as shown on PGNC
drawings RDC-54512, RDC-54513, RDC-54514 and according to PGNC grading
specifications provided by PGNC's Designated Representative.
(20 tons)
Per Ton
16. Furnish and install 4" diameter Schedule 40 PVC perforated pipe according to PGNC's
drawings RDC-54510, RDC-54511, and grading specifications provided by PGNC's
Designated Representative.
(330 linear feet)
Per Linear Foot
17. Furnish and install 10" diameter Schedule 80 PVC pipe according to PGNC's drawings
RDC-54510, RDC-54511, and grading specifications provided by PGNC's Designated
Representative.
(741inear feet)
Per Linear Foot
18. Furnish and install 1 (JB-1) storm drainage junction box(s) according to PGNC drawings
RDC-54510, RDC-54511, and RDC-54514 and grading specifications provided by PGNC's
Designated Representative.
(1 - storm drainage junction box)
Each
19. Furnish and install the "Permanent" seeding, fertilizing, mulching and anchoring of the
straw of all disturbed areas along with the re -seeding of all temporary berms, swales,
sediment traps, sedimentation filter basins, and other erosion control areas as indicated on
PGNC drawing RDC-54512, RDC-54513, and RDC-54514 and/or as specified by the
approved Erosion Control Plan and PGNC's Designated Representative.
(2 acres)
Lump Sum
20. Furnish and install ABC stone (granite stone) as shown on PGNC drawings RDC-54510 and
according to PGNC grading specifications provided by PGNC's Designated Representative.
(2050 tons) Per Ton
21. In case of additional work, the following Exhibit "D" should contain a list of all equipment
Rev.7/01/07
Exhibit B
RFP No.
Page 5 or 7
and the hourly rates which includes move -in time, operator, fuel, oil, maintenance, and all
components necessary for a complete and workable unit. The list should include labor and
foreman hourly rates.
,1UN 2 < 2009
i'7.J
Rev.7/01/07
EXHIBIT "D"
EQUIPMENT MODEL OR TYPE
PRICE/HOUR
Exhibit B
RFP No.
Page 6 of 7
Rev.7/01/07
Exhibit B
RFP No.
Pa e7of7
C: ✓.:1:
NOTES: JUN
1. If equipment breaks down or becomes inoperative, charges shall not apply until
equipment is back in service.
2. Equipment shall be invoiced for only the actual time in use, excluding rental
equipment.
3. Compensation for labor/equipment shall not be paid during lunch or break times.
4. Any additional material requested by PGNC's Designated Representative shall be
billed at Contractor's actual cost plus %.
RENTAL EOUIPMENT:
1. Any Equipment Rental, as approved by PGNC's Designated Representative to
perform the requested work, shall be billed at contractor's actual cost plus
2. The percentage amount above contractor's actual rental cost, as listed above, shall
also include the operator, fuel, and all operating/ maintenance cost pertaining to the
rental equipment.
SUBCONTRACTOR:
Any use of subcontractors, as approved by PGNC's Designated Representative to perform
the requested work, shall be billed at the subcontractor's actual cost plus %.
Rev.7/01/07
GRADING SPECIFICATION
CLEARING
Exhibit C
RFP No.
"10 2 ZOOS
tion
Clearing, grubbing, and disposal of all wood, stumps, mulch and trash from the site lot and
access drive areas including cut and fill slopes, diversion channels, borrow pits, and erosion
control areas as specified in the approved Erosion Control Plan and as shown on PGNC
drawings RDC-54511, RDC-54512, and RDC-54513.
Contractor shall also be responsible for cutting and removal of all "Danger Trees". All trees
to be cut as "Danger Trees" shall be determined on the site and indicated by flagging by
PGNC's Designated Representative. A tree outside the clearing limits labeled as a "Danger
Tree" need only to be cut as chose as possible to the ground level with the stump to remain.
Contractor shall be responsible for obtaining all burning permits if burning is permitted.
Contractor shall be responsible for any damage to Progress Energy Carolinas' property or
any damage to adjacent property owners as a result of burning on this project.
If burning is not permitted then the contractor shall remove all of the wood, trees, stumps
and trash from the substation and access road areas including the cut and rill slopes,
diversion channels, borrow pits, and erosion control areas and dispose of this material in an
approved landfill site. Grinding the wood, trees, stumps and roots with a tub -type grinder is
an acceptable method. The resulting mulch shall be removed from the site.
No trees, brush, stumps, mulch or trash will be buried in the Till slopes or anywhere on the
site.
Contractor shall clear sufficient area outside of the edge of grade to install all necessary
diversion channels.
Stripping of sites lot, access drive areas, and all cut and rill slopes as specified in the
approved Erosion Control Plan and as shown on PGNC drawings RDC-54511, RDC-54512,
RDC-54513, and RDC-54514, to a maximum depth of one foot or as specified by PGNC's
Designated Representative.
Strippings can be used to build the rill slopes to the specified slope ratio only if the slope
height is six feet (6') or less and the existing soil under the till slope area is not of an organic
type material. Excess strippings can be used to flatten the fill slopes if the above conditions
are met and if approved by PGNC's Designated Representative. Fill slopes that are 6 feet or
more in height must be built with good compactable rill soil. After these fill slopes are built
with good compactable rill soil, stripping may be applied to the rill slope surface to extend
the slopes and/or flatten the till slope ratio. The amount of strippings that can be wasted on
the rill slopes will be determined by how much area is available from the toe of the original
Rev.7/01/07
Exhibit C
JUN 2 < 2009 RFP No.
Page 2 of 6
i
rill slope and the distance to the temporary ditch and-berrn or the tree protection fencing.
Strippings may not be wasted outside of these erosion control measures.
The top 12 inches of any strippings that are placed in a rill slope or wasted anywhere on the
site shall be free of roots and other debris that would inhibit mowing. The Contractor shall
be responsible for removing this debris either by tractor root rake and/or by hand.
Disposal of all other strippings will be the responsibility of the Contractor. If an area is
available, the excess stripping may be disposed of on -site. If no on -site area is available, it
will be the responsibility of the Contractor to dispose of the excess strippings at an off -site
.location. This off -site location must be an approved and licensed landfill.
GRADING
Grading the sites lot and access drive to the elevations specified in the approved Erosion
Control Plan and as shown on PGNC drawings RDC-54511 to 95% standard proctor
maximum density compaction. All elevations specified in the approved Erosion Control Plan
and shown on PGNC drawings RDC-54512, and RDC-54513 are finished -dirt grade
elevations. This should include grading of all diversion channels at top and bottom of slopes.
All cut and rill slopes shall be tracked with dozer tread as specified in Section 6.03 of the
Erosion and Sediment Control Planning and Design Manual.
Edge of grade shall be 20 feet outside of fence on the substation lot unless otherwise noted on
the drawings.
All fill slopes shall be a minimum of 3:1 horizontal to vertical unless otherwise noted on the
drawings.
All cut slopes shall be a minimum of 3:1 horizontal to vertical unless otherwise noted on the
drawings.
The access drive width shall be 52 feet each side of centerline with 50 feet each side of
centerline consisting of ABC stone as indicated on PGNC drawing RDC-54510 or as
indicated on the "Access Road Details" as shown on PGNC drawing RDC-54514. Geotextile
Fabric shall be installed on the compacted soil grade under the ABC stone area of the
roadbed as indicated on the "Access Road Details" as shown on PGNC drawing RDC-54514.
The access drive shall be rolled with a vibrating roller after placement of ABC stone to
specifications as seen practical by PGNC's Designated Representative.
COMPACTED FILL
Compaction Requirements for Controlled Fill
All the organic topsoil is to be removed before placing any rill. In the construction of
controlled fill, all soils shall he compacted to a density of at least equal to 95% of the
Rev. 7/01 /07
1�,�` x'- ✓ �%— Exhibit C
!UN 5 ZC)HRFP No.
Page 3 of 6
maximum dry density at optimum moisture content-using=the:Standard Proctor Method and
field controlled in accordance to the ASTM Specification D-698 (latest edition).
When material varies from optimum moisture content, it shall be treated as follows: when
wet, it shall be drained and worked by disking, harrowing, or other aerating techniques until
the moisture content is reduced to the optimum value. When dry, the soil shall be sprinkled
with water and mixed by discing or harrowing until the optimum moisture content is
attained. Material for controlled compacted fill shall be obtained from a licensed borrow pit,
approved in advance of construction by PGNC's Designated Representative. This borrow
material shall be sampled and tested by an independent testing laboratory employed by the
contractor if so requested by PGNC's Designated Representative.
Construction of Compacted Fills
Sandy soils shall be placed in layers no thicker than twelve (12) inches and compacted by one
of the following methods:
1. A pneumatic tired rollers of at least 32 tons gross weight
2. A vibrating steel drum rollers.
Clay soils shall be placed in nine (9) inch maximum layers and compacted by one of the
following methods:
1. A sheep's foot roller having a drum at least 42 inches in diameter and of such weight
as to produce a calculated foot pressure of 250 psi on a hard surface.
2. A pneumatic tired roller of at least 32 tons gross weight
3. A vibrating steel -drum roller or vibrating sheep's foot drum of eight to ten tons gross
weight.
4. A self propelled compactor with 4 sheep's foot type wheels
Areas inaccessible to compaction rollers shall be compacted with approved mechanical
tamping compactors. Compaction equipment other than specified above may be used only
with prior approval by PGNC's Designated Representative.
The top surface of the compacted fill shall be sealed and finished rolled with a smooth tire
pneumatic roller or a vibrating smooth steel -drum roller of eight to ten tons gross weight.
Stones in the fill shall be well distributed. No stones over six inches in diameter shall be
within 24 inches of finished grade. Each layer shall be free of roots and shall meet
compaction requirements before succeeding layers are placed. Layers shall be maintained
with a slope or crown to prevent erosion or ponding of water. When fill is placed adjacent to
walls or other structural members liable to be disturbed by the compacting action, such
members shall be braced or shored as necessary for their protection.
Testing for Controlled Compacted Fill
If an independent construction material engineering testing firm is not indicated in the
Schedule of Units to be employed by the contractor throughout the duration of the grading
of the compacted fill areas, then in the opinion of PGNC's Designated Representative if the
contractor is not compacting the fill material to the required specifications, the PGNC's
Rev. 7/01/07
JijINi 70011 j
Exhibit C
RFP No.
Page 4 of 6
Designated Representative may request the assistance of an independent construction
material engineering testing firm to inspect and test the compacted fill area. If the test
results meet the required compaction specifications then PGNC will pay for the testing
procedure, but if the compacted area in question does not meet the required compaction
specifications then the testing fees will be billed to the contractor. The fill material shall be
tested by the construction material engineering testing firm in blocks no greater than 5,000
square feet in area and one layer in thickness.
Tests shall be made in accordance with ASTM-D-698, or such other methods as may be
approved by PGNC's Designated Representative. More frequent testing may be required if,
in the opinion of PGNC's Designated Representative, it is necessary to ensure thorough and
uniform compaction. All test results shall be furnished to PGNC's Designated
Representative and to any other PGNC employee as indicated by PGNC's Designated
Representative.
PGNC's Designated Representative must approve the independent construction material
engineering testing firm. The contractor will furnish the name, address and a phone number
of the independent construction material engineering testing firm to PGNC's Designated
Representative for approval.
Materials for Controlled Compacted Fill
Materials for controlled compacted rill shall be natural earth, broken rock, or crushed rock.
Borrow material shall be free of roots, stumps, other organic materials, frost, ice, frozen soil
or rock materials larger than 0.50 cubic feet in volume. The top 24 inches of the fill shall
have no rock materials larger than six inches in maximum dimension. If the borrow material
is at a moisture content of more than two per cent (2%) plus or minus of the optimum
moisture content as determined by the laboratory testing, it shall be treated in the borrow
pit as previously specified until optimum moisture content is obtained.
Material for controlled compacted fill shall be obtained from a licensed borrow pit approved
in advance of construction by PGNC's Designated Representative. This material shall be
sampled and tested by an independent testing laboratory employed by the contractor if so
requested by PGNC's Designated Representative.
STONE
Furnish and install ABC stone according to PGNC's drawings and specifications provided
by PGNC's Designated Representative.
After initial grading, only the access drive and a material storage area will be stoned with
ABC stone, or as specified by PGNC's Designated Representative. The ABC stone on the
access road and the material storage area shall be compacted with a vibrating smooth drum
roller of eight to ten tons gross weight.
Rev. 7/01 /07
!UN z i 200i' Exhibit C
RFP No.
Page 5 of 6
The ABC stone used inside the site perimeter fenced area and the ABC stone installed up to
a distance of six feet (6') outside the perimeter fence shall be granite type ABC stone (a
minimum resistivity of 1500 ohm -meter). No limestone or marl type stone shall be used
inside the site perimeter fenced area and in the six feet (6') stoned area outside of the
perimeter fence.
The ABC stone used on the access road may be obtained from any local stone quarry. All
other types of stone (riprap, washed stone and the 2" to 3" washed stone for the temporary
construction entrance) may be obtained from any local stone quarry.
Contractor shall be responsible for obtaining all highway use permits, and shall be
responsible for paying all fines resulting from failure to comply with state and county
regulations.
Furnish and install riprap according to PGNC's drawings and specifications provided by
PGNC's Designated Representative.
Riprap should be approximately 9 inches in diameter, unless otherwise specified on the
PGNC's drawings. The contractor may machine place the riprap in the locations specified
in the approved Erosion Control Plan and as shown on PGNC's drawings and/or as specified
by PGNC's Designated Representative.
Furnish and install erosion control stone according to specifications provided by PGNC's
Designated Representative. Contractor shall install the erosion control stone in the locations
as specified in the approved Erosion Control Plan and as shown on PGNC's drawings and/or
as specified by PGNC's Designated Representative.
Class A erosion control stone should be approximately 2 inches to 6 inches in diameter.
Class B erosion control stone should be approximately 5 inches to 15 inches in diameter.
Furnish and install #57 and/or #67 washed stone in the locations as specified in the approved
Erosion Control Plan and as shown on PGNC's drawings and/or as specified by PGNC's
Designated Representative.
Furnish and install 2-inch to 3-inch course washed stone in the locations as specified in the
approved Erosion Control Plan and as shown on PGNC's drawings and/or as specified by
PGNC's Designated Representative.
UNSUITABLE MATERIALS: REMOVAL. AND BACKFILLING
All unsuitable material shall be excavated and the removal of this unsuitable material from
substation lot and drive shall be the responsibility of the contractor. If an area is available,
this unsuitable material may be disposed of on -site. If no on -site area is available, it will be
the responsibility of the Contractor to dispose of this material at an off -site location. This
off -site location must be an approved and licensed landfill.
Rev.7/01/07
Exhibit C
RFP No.
Page 6 of 6
Backfill and compact the extra till material required, due to the excavation of unsuitable
material removed in the substation lot and drive. This fill material shall be compacted to a
density of at least equal to 95% of the maximum dry density at optimum moisture content
using the Standard Proctor Method. If this extra till material is not readily available on the
site, then obtaining the rill material required for the backfill from an off -site location shall be
the responsibility of the contractor. This off -site location must be an approved and licensed
borrow pit.
EROSION CONTROL
Compliance with erosion and sedimentation control plans as approved by the State of North
Carolina, including earthen berms, swales, silt fences, diversion channels, brush barriers,
filter basins and temporary sediment traps.
The Contractor shall be responsible for compliance with all erosion and sedimentation
control measures as specified in the approved Erosion Control Plan and as shown on PGNC
drawings RDC-54512, and RDC-54513, or as directed by PGNC's Designated
Representative. The Contractor shall be responsible for paying all fines that are assessed to
PGNC resulting from failure to comply with these erosion control measures and regulations.
The Contractor shall be responsible for compliance with any erosion and sedimentation
control ordinances as required for any offsite land tills or licensed borrow pits that he might
contract from private property owners. The Contractor shall be responsible for paying all
fines resulting from failure to comply with these state and county regulations.
These erosion control measures are to be implemented before any clearing of the substation
lot and drive is allowed as indicated in the Approved Erosion Control Plan or as indicated by
PGNC's Designated Representative.
Rev. 7/01 /07
]REC]EY`Lr��
JI.11_ 17 2009
Appendix L
Level Spreader Calculations
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Permanent Level Spreader - Drainage Area C fill. 17 ?�09
Project: Progress Energy Brunswick Nuclear Plant Unit 1 V.
Client: Progress Energy
Location: Southport, Brunswick County, North Carolina
Objective: Design level spreader to convert concentrated flow to sheet flow in a non erosive manner.
References: (1) NCDENR Stormwater BMP Manual
(2) NOAA Atlas 14 Vo12, Version2, Southport 5 N, North Carolina
Procedure: Use procedures outlined in the above reference. Rational Method will be used
to calculate flows.
Level spreader will be designed based on the 10-Year storm event.
Calculations:
Rational Method: O = C ' I ' A
Where
O = Flow (cfs)
C = Runoff Coefficient
I = Rainfall Intensity (in/hr)
A = Drainage Area (ac)
Find C value in Reference 2
Find Intensity for 10-year event
C = 0.25
1 = 8.02
Drainage area (A) (ac) = 0.4
a (cfs) = 0.802
Determine Minimum Level Spreader Dimensions:
Design Flow
0.80
Min Required Len th
113
Actual Design Length
150
Unit 1 Perm Level Spreader Calcs.xlsx 7/15/2009
CEIVFD
Permanent Level Spreader - Drainage Area D II II- 1 7 2009
Project: Progress Energy Brunswick Nuclear Plant Unit 1 5Y:
Client: Progress Energy
Location: Southport, Brunswick County, North Carolina
Objective: Design level spreader to convert concentrated flow to sheet flow in a non erosive manner
References: (1) NCDENR Stormwater BMP Manual
(2) NOAA Atlas 14 Vo12, Version2, Southport 5 N, North Carolina
Procedure: Use procedures outlined in the above reference. Rational Method will be used
to calculate flows.
Level spreader will be designed based on the 10-Year storm event.
Calculations:
Flow O based on outflow from 6" PVC from Sand Filter Underdrains
See appendix E for Sand Filter Calculations
Q (cfs) = 0.18
Determine Minimum Level Spreader Dimensions:
Desi n Flow
0.18
Min Required Length
113
Actual Design Length
115
Actual Design Length > Min Required Length
JU^
Enclosure: Brunswick
Progress Energy Carolinas, Im.
Brunswick Nuclear Plant
PO Box 10429
Southport, NC 26461
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North Carolina Department of Environment and
Natural Resources
NCDENR Request for Express Permit Review
For C-0 P e Y
Reviewer: d- -i
Submit: 4 — 2^
Time: to ' �3
Confirm:
i �r�(i'1'
C' Ir
FILL-IN all the information below and CHECK the Permit(s) you are requesting for express review. FAX or Email the completed form to Express
Coordinator along with a completed DETAILED narrative, site plan (PDF file) and vicinity map (same items expected in the application package
of the project location. Please include this form in the application package.
• Asheville Region -Alison Davidson 828.296-4698;alison.davidson(oncmaiLnet
• Fayetteville or Raleigh Region -David Lee 919-791.4203; david.lee(@,ncmail.net
• Mooresville & -Patrick Grogan 704-663-3772 or patrick.grogan(pitncmail.net
• Washington Region -Lyn Hardison 252-946.9215 or lvn.hardison(ancmail.net OGC�
• Wilmington Region -Janet Russell 910-350.2004 or ianet.russeViricmail.net
NOTE: Project application received after 12 noon will be stamped in the following work day
Project Name: BRUNSWICK UNIT 1 CAPACITOR BANK ) County: BRUNSWICK
Applicant: BRUNSWICK STEAM ELECTRIC PLANT Company: PROGRESS ENERGY CAROLINAS, INC.
Address: 8470 RIVER ROAD SECity: SOUTHPORT, State: NC Zip: 28461-
Phone: 919-546-7457 Fax::919-546-4409 Email: steve.cahoon@pgnmail.com
Physical Location:_
Project Drains into NANCY'S CREEK waters - Water classification SC SW, HQ W (for classification see-
httD:Hh2o.enr.state.nc.us/bims/reports/reportsWB.html) -
Project Located in CAPE FEAR River Basin. Is project draining to class ORW waters? N:, within Y: mile and draining to class SA waters N
or within 1 mile and draining to class HQW waters? Y
Engineer/Consultant: VIRGINIA RUSSELL Company: DEWBERRY & DAVIS E C E 9 V E D
Address: 2301 REXWOODS DRIVE City: RALEIGH, State: NC Zip: 27607-3366 Iona(
Phone: 919-881-9939 Fax::919-881-9923 Email: fvrussell@dewberry.com MAY 2 0 2009
(Check all that apply) MN r. S 3r-0'J n 2„no,; nt e'r
❑ Scoping Meeting ONLY ElDWQ,,❑ DCM, ❑ DLR, ❑ OTHER: _ PROJ # vYy
❑ Stream Origin Determination: , # of stream calls - Please attach TOPO map marking the areas in questions
® State Stormwater ` ❑ General ❑ SFR, ❑Bkhd & Bt Rmp, ❑ Clear & Grub, ❑ Utility
❑ Low Density ' ❑ Low Density -Curb & Gutter _ # Curb Outlet Swales ❑ Off -site [SW _ (Provide permit #)]
❑ High Density -Detention Pond _ # Treatment Systems '® High Density -Infiltration 1 #Treatment SystemsT
❑ High Density -Bio-Retention _ # Treatment Systems ❑ High Density-Stormwater Wetlands _ # Treatment Systems
❑ High Density -Other _ # Treatment Systems /❑ MODIFICATION: ElMajor ❑ Minor ❑ Revision SW
❑ Coastal Management ❑ Excavation & Fill ❑ Bridges & Culverts ❑ Structures Information
_-1 ❑ Upland Development ❑ Marina Development ❑ Urban Waterfront
5 �jo ® Land Quality ® Erosion and Sedimentation Control Plan with 3.13 acres to be disturbed.(CK # (for DENR use))
WETLANDS QUESTIONS MUST BE ADDRESSED BELOW
❑ Wetlands (401): Check all that apply
Wetlands on Site ❑ Yes ® No
Wetlands Delineation has been completed: ❑ Yes ❑ No
US ACOE Approval of Delineation completed: ❑ Yes ❑ No
404 Application in Process w/ US ACOE: ❑ Yes ❑ No
Permit Received from US ACOE ❑ Yes ❑ No
Fee SDlltfor multiDleDermits: (Check#
Isolated wetland on Property LJ Yes IJ No
Buffer Impacts: ❑ No ❑ YES: acre(s)
Minor Variance: ❑ No ❑ YES
Major General Variance ❑ No ❑ YES
401 Application required: ❑Yes ❑ No If YES, ❑ Regular
Perennial, Blue line stream, etc on site ❑ yes ❑ No
For DENR use only
Total Fee Amount $
SUBMITTAL DATES
Fee
I SUBMITTAL DATES
Fee
CAMA
$
Variance ❑ Ma'; ❑ Min
$
SW ❑ HD, ❑ LD, ❑ Gen
$
401:
$
LQS
1
$
Stream Deter,_
$
A U NCDENR EXPRESS July 2008 'o`d' l�*Z `
�--
c� Progress Energy
Progress Energy Carolinas, Inc. Raleigh, NC
BRUNSWICK NUCLEAR PLANT UNIT 1
CAPACITOR BANK INSTALLATION
SOUTHPORT, BRUNSWICK COUNTY, NORTH CAROLINA
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Proiect Descrintion
The project is located at the Brunswick Nuclear Plant, Township of S.mithville, Brunswick County, North
Carolina. The site is located off Highway 87 northeast of Southport, North Carolina. Progress Energy
Carolinas, Inc. (PEC) is going to install two (2) 230kV capacitor banks at the Brunswick Nuclear Plant.
The capacitor banks will each require a new circuit breaker, which will be located inside the existing
switchyard fence. The Brunswick Nuclear Plant contains 2,920 acres of which a total of 3.13 acres will be
disturbed due to the construction activities. The 3.13 acres is divided into two (2) smaller sites, A and B.
Site A has a disturbed site area of 2.03 acres and is under review by NCDENR Land Quality for an
Erosion and Sedimentation Control Permit. `Of the 2.03 acres site area, only 1.20 acres (drainage area)
drain to the BMP. The remaining 0.83 acres will primarily be grassed and the stormwater runoff will,
return to the original flow pattern.
Site B has a disturbed area of 1.10 acres. The new construction of this site includes resurfacing of an ;
existing gravel lot. No new impervious surface will be created. The area drains to an existing stormwater
_treatment facility and therefore does not require a stormwater permit. The area is under review by
NCDENR Land Quality for an Erosion and Sediment Control Permit.
The Brunswick Nuclear plant is a secure site and to enter the facility you must obtain a pass. We did not
supply an easement because the project is on land under one owner and no land sales are proposed.
Existing Site Conditions
The capacitor site (site A) is partially wooded and partially grass field and brush. The circuit breaker site
(site B) is located on existing gravel and will remain as gravel after construction.
The project area is in the Cape Fear River Basin. The majority of the site A (DA-A, C, D and F)
discharges to Nancy's Creek. The remaining portion of site A (DA-B and E) discharges to an existing
canal/levee system. Site B flows into an existing stormwater treatment facility that discharges to Nancy's
Creek. Nancy's Creek is classified as SC, Sw, and FIQW. Class SC waters are tidal salt waters protected
for secondary recreation, fishing, aquatic life and wildlife. The classification Sw indicates swamp waters,
which have low velocities and other natural characteristics that are different from and adjacent streams.
The supplemental HQW indicates High Quality Waters, which are waters that are rated as excellent based
on biological and physicaVchemical characteristics.
Soils Characteristics
The soils in the area of construction are classified as BrB, Bragg fine sandy loam, 2 to 6 percent slopes
according to the Soils map constructed 1967 by Cartographic Division, Soil Conservation Service,
USDA, from 1965 aerial photographs.
Stormwater Management
Only the stormwater runoff from the capacitor bank (site A) of 1.20 acres will be treated via an open s
1_fil[er (this area includes the BMP). The post construction treatment area stormwater from the capacitor
bank will sheet flow across gravel, into a forebay, over a fixed weir (concrete lip) into an open sand filter.
The sand filter will allow water to percolate through filter media to remove pollutants and treat the
stormwater. The Bow will be collected by an underdrain system at the bottom of the filter media and
discharge to a level spreader and then sheet flow to Nancy's Creek and eventually the Ce Fear River.
A MAY 2 0 2009
DWQ
PROJ #
The sand filter has beeiidesigned as anon -line system. Therefore, the device has been de is fined to treat
i�twiC6 the required volume of the 1.5"iainfall event.- Further the forebay exceeds the minimum of 20% of
the required ireotment volurne. Twice the required volume of stormwater will be stored in the sand filter
and recover within the required 40 hour time period via'an underdrain system. The underdrain was sized
in accordance with Section 5.7 of the North Carolina Division of Water Quality Best Management
Practice manual, latest edition. In addition, the l-year, 24-hour post -construction flow rate will be
released at a rate less than pre -construction flow rates.
As the design exceeds both treatment volume and attenuation volume for the (site A) capacitor banks of
1.20 acres it also provides compensatory treatment and attenuation for all incidental areas of new
impervious cover (such as driveway aprons — 0.1 l ac). The total 76% impervious (or 39,640 sf
impervious area) reported on the application includes all new impervious surfaces.
Summary of Stormwater Flow Rates
Peak flow calculations (pre -construction and post -construction) going to the open sand filter were
calculated using Rational Method. The inflow hydrograph and volumes were calculated using SCS
method. The volume of runoff that must be controlled by the sand filter was calculated using Simple
Method. Stage -storage -discharge model for the sand filter was developed using Chainsaw routing. All
calculation methods are described in Section 3 of the North Carolina Division of Water Quality Best
Management Practice manual, latest edition.
The pre -construction and post -construction drainage area for the (site A) built upon area of 1.20 acres is
considered for attenuation. An open sand filter will be utilized on this site to treat runoff from the site.
The pre -constructed flow rate for the 1-year, 24-hour storm event is 1.3 cfs. The post -construction flow
rate of 4.8 cfs is reduced to 0.18 cfs by the BMP. The detention storage volume will be recovered via an
underdrain system at the bottom of the filter media. The underdrain system will discharge into a junction
box. Larger storm events will bypass the sand filter over a weir located along the western perimeter
berm. Physical constraints on the site prohibited the provision for an offline sand filter design. In order
to abate the concern for overload of the sand filter the system has been designed to provide twice the
required storage for treatment. The sand filter will recover the required volume within the allotted time of
40 hours and the forebay meets the minimum design depth of 3 feet and will retain a pool of water below
the invert of the weir to the sand filter.
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NCDENR EXPRESS July 2008
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Russell, Janet
From:
Weaver, Cameron
Sent:
Wednesday, May 20, 2009 9:35 AM
To:
Russell, Janet
Subject:
FW: Express Review Brunswick Steam Electric Plant unit 1 Capaciotr Bank
Attachments:
REQUEST FOR EXPRESS 09 capbank Unit 1.doc; Narrative.pdf; RDC-54506 vincinity
map.pdf; RDC-54507exixting conditions.pdf; RDC-54509sitelayout.pdf; RDC-54510(1)
siteplan. pdf
From: Cahoon, Steve[mailto:Steve.Cahoon@pgnmail.comj
Sent: Wednesday, May 20, 2009 8:03 AM
To: Cameron Weaver
Subject: Express Review Brunswick Steam Electric Plant unit 1 Capaciotr Bank
Cameron,
Attached is the express review submittal for the Unit 1 Capacitor Bank Project we spoke about several weeks ago. Sorry
for the delay in getting it to you, we needed to have a few internal meetings before we were ready to begin the
permitting process. If you will recall we would like to have the express review for state storm water and sediment and
erosion control. Please review the package and let me know if you have any questions.
Thank you!
Steve Cahoon
Progress Energy Carolinas, Inc.
Environmental, Health & Safety Services
Vnet770-7457
Bell (919) 546-7457
Fax (919) 546-4409
,
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Russell, Janet
To: fvrussell@dewberry.com
Cc: steve.cahoon@pgnmail.com
Subject: Brunswick Unit 1 Capacitor Bank
May 21, 2009
RE: Brunswick Unit 1 Capacitor Bank
Mr. Cahoon & Ms. Russell
We have scheduled a "scope„ meeting on the stormwater application for the above -referenced project with Christine
Nelson on June 2, 2009 at 10:30 AM here in the Wilmington Regional Office, 127 Cardinal Drive Ext. Wilmington, 28405.
Rhonda Hall will also be at the meeting to discuss the erosion control plan. It will benefit you to have an opportunity to
discuss the proposed stormwater treatment before the actual application submittal date.
attend the meeting on the 2nd, another "submittal' meeting may not be required. Please
packages on the 2nd so that we might go over everything.
The submittal requirements are attached for your review.
Please respond to this email ASAP to confirm and reserve the meeting time and date.
Thanks,
Janet Russell
Express Coordinator
Note: New email address
ianet.russell(@ncdenr.gov
If both of you are able to
bring the entire application
i. \ L%`�J'� rl'T��C7V. - i•e� 1001 " S'i' :vJ7 � 1 \
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Russell, Janet J
From: Cahoon, Steve [Steve.Cahoon@pgnmaiI.com]
Sent: Thursday, June 11, 2009 4:19 PM
To: Russell, Janet
Subject: RE: Unit 1 Capacitor Bank - Brunswick
Thanks, Janet. Please reserve June 24" @ 11:00 am for an express review meeting for the Brunswick Unit 1 Capacitor
Bank project.
Steve Cahoon
Progress Energy Carolinas, Inc.
Environmental, Health & Safety Services
Vnet 770-7457
Bell (919) 546-7457
Fax (919) 546-4409
From: Russell, Janet[mailto:janet.russell@ncdenr.gov]
Sent: Thursday, June 11, 2009 4:16 PM
To: Cahoon, Steve
Cc: Russell, F. Virginia
Subject: Unit 1 Capacitor Bank - Brunswick
June 11, 2009
RE: Brunswick Unit 1 Capacitor Bank
Steve
The Express Stormwater submittal meeting has been scheduled with Christine Nelson on Wednesday, June 24, 2009 at
11:00 AM here in the Wilmington Regional Office.
Please respond to this email to confirm and reserve the submittal meeting date.
Thank You,
Janet
Janet M. Russell
Express Coordinator
910 796-7421
NOTE: change in email address: janet.russell@ncdenr.gov
Email correspondence to and from this address may be subject to the North Carolina
Public Records Law and may be disclosed to third parties.
*LMG
LAND MANAGEMENT GROUP INC.
.OW Environmental Consultants
bjYvwst"61, G, jl o 7
January 12, 2609
E 36
�.JrIDY'� Cori 'c,v
John Magee P.E. /� k
Silar Services v' v
983 Butler Pike
Blue Bell, PA 19422
10,44 S d
Reference: Stormwater basin study for the proposed basin areas for the Progress Energy
Plant, Located near South Port, NC.
Dear Mr. Magee:
On January 12, 2009, Land Management Group, Inc. had the pleasure of
evaluating the Progress Engery proposed stormwater basin area. 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.
The soils at this site are mapped as Bragg soils in the Soil Survey of Brunswick
County (USDA, 1986). Actual soil borings 18-20 confirms the soil to be a
Baymeade/Foreston complex soil series, Appendix B. The Baymeade and Foreston soil
series can best be described as soils that formed from depositional events of sandy and
loamy marine sediments.
The seasonal high water table is normally evident by observation of
redoximorphic features suggesting past conditions of saturation and reduction. There is
evidence of redoximorphic features at 70" in Boring 18, 51" in boring 19 and 49" in
boring 20 (see soil profile descriptions in Appendix B and Test Area Map Appendix A).
No physical water levels were recorded on January 12, 2009 within test depth of soil
borings 18 and 19, the physical water level was at 101" in boring 20, as documented in
the soil profile descriptions, Appendix B. All recorded depths are from the existing
surface as noted in the soil profile descriptions, Appendix B. The official published
description and physical and chemical data for the Baymeade and Foreston soil series are
shown in Appendix C for comparison.
In summary, this site has an area that is proposed for stormwater basin placement.
This area has soils that have a seasonal high water tables at 70" in boring 18, 5l" in
boring 19 and 49" in boring 20. If infiltration rates are required, then they can be
provided at the client's request. Please do not hesitate to contact me if you have any
questions with this report. I may be reached at 910-452-0001, 910-471-0505 or at
Iillowell(a hngrom).net .
Sincerely,
Nicholas Howell
NC Licensed Soil Scientist #1294
www.lmgroup.net • info@lmgroup.net • Phone: 91
3805 Wrightsville Ave., Suite 15, Wilmington, NC 28403
28402
Progress Energy
Brunswick County
Stormwater Evaluation
Test Area Map
January 12, 2009
*Drawing Not To Scale"
Soil Boring "Drawing Provided By Others*"
Land Management Group, Inc.
Job #30-09-007
Environmental Consultants
P.O. Box 2522
John Magee
Wilmington, NC
Drawing by N.P.H.
v .LMGroun.not
Phone: 910452-0001 Fax: 910452-0060
Boring 18 Side Slope 1-2%
Fill 0-36" Loamy Sand with few Sandy Loam bodies, structureless.
Ab — 36-40" Loamy Sand, granular very friable non sticky non plastic, 1 OYR 3/1.
Bw — 40-53" Loamy Sand, weak mediwn subangular blocky, friable non sticky non
plastic, 1 OYR 4/4.
E — 53-70" Sand, granular very fiiable, non sticky non plastic, 1 OYRE 7/4.
Bt — 70-107" Sandy Loam, weak medium subangular blocky, friable slightly sticky non
plastic, 1OYR 5/8 with 7.5YR 5/8 and 5Y 6/1 mottles.
Btg— 107-120" Sandy Loam, weak medium subangular blocky, friable, slightly sticky
non plastic, 6Y 6/1 with 10YR 5/6 mottles.
Physical Water: NA
SHWT: 70"
Boring 19 Side Slope 2-4%
Fill 0-29" Loamy Sand with few Sandy Loam bodies, structureless.
Ab — 29-33" Loamy Sand, granular very friable non sticky non plastic, 10YR 311.
E — 33-41" Sand, granular, very friable, non sticky non plastic, 1 OYR 7/2.
Bh — 41-45" Loamy Sand non cemented, granular friable non sticky non plastic, 1 OYR
3/3.
E'— 45-51" Sand granular friable non sticky non plastic, 1 OYR 7/3.
Btg— 51-120" Sandy Loam with few Sandy Clay Loam bodies, weak medium subangular
blocky slightly sticky slightly plastic, 5Y 6/1 with I OYR 518, 7.5YR 518 and 5YR 5/8
mottles.
Physical Water: NA
SHWT: 51"
Boring 20 Foot Slope 1-2%
Fill — 0-24" Loamy Sand with few Sandy Loam bodies, structureless.
Bh — 24-27" Loamy Sand non cemented, granular friable non sticky non plastic, I OYR
3/3.
E — 27-49" Sand granular friable non sticky non plastic, I OYR 7/3.
Bt — 49-120" Sandy Loam with few Sandy Clay Loam bodies, weak medium subangular
blocky slightly sticky slightly plastic, 1 OYR 5/8 with 5Y 6/1, 7.5YR 5/8 and 5YR 5/8
mottles.
Physical Water: 101"
SHWT: 51"
Appendix C
Published Description and Chemical and Physical Properties
Of the Baymeade and Foreston Soil Series
Official Series Description - BAYMEADE Series http://www2.ftw.nres,usda.gov/osd/dat/B/BAYMEADE.hti
LOCATION BAYMEADE. NC
Establisbed Series
Rev. REI-I:ENH
07/1999
The Baymeade series consists of deep, well drained soils with moderately rapid permeability. They
formed in loamy and sandy marine sediments of the lower Coastal Plain. Slopes range from 0 to 12
percent. Mean annual temperature is 63 degrees F., and mean annual precipitation is 54 inches.
TAXONOMIC CLASS: Loamy, siliceous, semiactive, thermic Arenic Hapludults
TYPICAL PEDON: Baymeade sand --on a 3 percent slope under nixed hardwood and pine. (Colors are
for moist soil unless otherwise stated.)
A--O to 3 inches; dark gray (1 OYR 4/1) fine sand; weak granular structure; loose; many fine and medium
roots; many uncoated sand grains; moderately acid; abrupt smooth boundary. (2 to 10 inches thick)
E--3 to 12 inches; light gay (i OYR 7/2) fine sand; single grained; loose; many fine and medium roots;
slightly acid; gradual wary boundary. (0 to 15 inches thick)
E/Bh--12 to 36 inches; very pale brown (1 OYR 7/4) fine sand; single grained; loose; cotmuon irregular
bodies of friable organic coated sand that are dark brown (7.5YR 3/2) and brown (7.5YR 4/4) (Bh) make
up about 12 percent of this horizon; many fine and medium roots; moderately acid; abrupt smooth
boundary. (0 to 26 inches thick)
Bt--36 to 49 inches; strong brown (7.5YR 5/6) fine sandy loam; weal: coarse subangular blocky
structure that parts into weak fine granular structure; very friable; marry fine and medium roots;
moderately acid; gradual wavy boundary. (5 to 40 inches thick)
BC-49 to 58 inches; strong brown (7.5YR 5/6) loamy fine sand; weak fine granular structure; very
friable; few fine roots; moderately acid; gradual wavy boundary. (0 to 17 inches thick)
CI- 58 to 75 itches; mottled white (1 OYR 8/1) and very pale brown (1 OYR 7/4) fine sand; single
grained; loose; moderately acid; gradual wavy boundary.
C2--75 to 78 inches; very pale brown (I OYR 8/3) fine sand and loamy fine sand; single grained; loose;
moderately acid.
TYPE LOCATION: New Hanover County, North Carolina; Wihnwngton, 0.5 mile south of Dawson and
Sixteenth Streets on west side of Sixteenth Street road bank.
RANGE IN CHARACTERISTICS: Solum thickness is 35 to more than 60 inches. Reaction ranges
from very strongly acid to slightly acid, unless limed. Some pedons have extremely acid A and E
horizons.
The A or Ap horizon has hue of 1 OYR to 2.5Y value of 4 to 6, and chroma of 1 or 2 or is neutral with
1 of 1/12120094:16 P
Official Series Description- BAYMEADB Series http://ww%v2.fhv.iircs.usda.gov/osd/dat/B/BAYNEADE.litr
value of 4 to 6 with common clean grams that are white or fight gray. Texture of the A horizon is sand,
fine sand, loamy sand, or loamy fine sand.
The E horizon.has hue of 1 OYR or 2.5Y, value of 4 to 8, and chroma of 1 to 6 or is neutral with value of
6 to 8. Texture is sand, fine sand, loamy sand, or loamy fine sand. The Bh portion of EBh horizon or Bh
horizon, where present, is granular to massive with hue of 5YR to 1 OYR, value of 3 to 7, and cluoma of
2 to S.
The E' horizon, where present has hues of 7.5YR to 2.5Y, values of 4 to 8, and chroma of 2 to 6 or it is
neutral with values of 6 to 8. It is sand, fine sand, loamy sand or loamy fine sand.
The Bt horizon has hue of 7.5YR to 2.5Y, value of 5 to 7, and chrome of 4 to 8. Mottles are in shades of
yellow, brown, or gray at depths below'25 inches in some pedons. A gay matrix may be present in the
lower Bt horizons of some pedons. Texture is commonly sandy loam or fine sandy loam but some pedons
are sandy clay loans. The lower Bt horizon may occur as lamella of sandy loam.
The BC horizon has.hue of 7.5YR to 2.5Y, value of 5 to 7, and chroma of 2 to 8. Mottles are in shades
of yellow, brown, or gray in some pedons. Texture is loamy sand, loamy fine sand, sandy loam, fine
sandy loam or in some pedons sandy clay loam.
Tine C horizon has hue of 7.5YR to 2.5Y, value of 5 to 8, and chroma of 1 to 8 or is mottled in shades of
these colors. Texture is sand or fine sand or stratified sandy, loamy, or clayey material. Some pedons
have thin discontinuous Bh bodies in the C horizon.
COMPETING SERIES: Ailey. Blaney, Chipola, Chisolm Coosaw, Garcon, Gomery Kenansville
Remlik, Tenaha Tomahawk Uchee, and Valhalla in the same family. Closely related soils are the Alaga,
Eustis, Kureb Onslow, Seagate, Waeram, and Wakulla series. All of these soils except Kureb lack
irregular intermittent Bh bodies in the EBh horizon. Kureb soils lack argillic horizons. Onslow soils lack
an arenic epipedon and contain gray mottles indicative of wetness in the Bt horizon. Seagate and
Valhalla soils have continuous Bh horizons. Seagate soils have poorer drainage.
GEOGRAPHICSETTING: Baymeade soils occur on broad, gently sloping surfaces of the lower
Coastal Plain, generally above 20 feet. Slopes range from 1 to 12 percent. They formed in (stratified)
interbedded sandy and loamy Coastal Plain sednnents. The mean annual precipitation ranges fiom 47 to
60 inches and mean annual temperature ranges from 53 to 74 degrees F.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the competing Kureb and the Blanton,
Foreston Goldsboro. Lakeland Leon, Norfolk and Rimini series. Blanton soils have a Grossareiric
epipedon. Foreston, Goldsboro and Norfolk lack an arenic epipedon. Lakeland soils lack fight gray E
horizons and an argillic horizon. Leon and Rimini soils have continuous Bh horizons, and the Leon soils
have poorer drainage.
DRAINAGE AND PERMEABILITY: Well drained; slow runoff; moderately rapid permeability.
Measured watertable levels at two sites show that the water table is 45 to 60 inches below the surface in
December to April and other wet periods.
USE AND VEGETATION: Most of these soils are in forest of mixed hardwood and pine. Native
vegetation is turkey oak, long leaf pine, dwarfed huckleberry, small myrtle, wire grass, and astor. Large
areas are in residential and urban uses in New Hanover County.
DISTRIBUTIONAND EXTENT: Lower Coastal Plains of North Carolina and possibly South Carolina.
v ,.r1 1/12/2009 4:16 F
Official Series Description - BAYMEADE Series http://www.2.ffw.nres.usda.gov/osd/dat/B/BAYMEADE.hyr
The series is extensive.
MLRA OFFICE RESPONSIBLE: Raleigh, North Carolina
SERIES ESTABLISHED: New Hanover County, North Carolina; 1973.
REMARKS: Diagnostic horizons,and features recognized in this pedon are:
Ochlic epipedon - the zone from the surface to a depth of 36 inches (the Ap and E horizons)
Arent feature - the zone of sandy sediments from 0 to 36 inches.(the A, E, E/Bh horizons)
Argillic horizon - the zone from a depth of 36 to 58 inches (the Bt and BC horizons)
ADDITIONAL DATA: None
TABULAR SERIES DATA:
SOI-5 Soil Name Slope Airtemp FrFr/Seas Precip Elevation
NCO083 BAYMEADE. 0- 12 59- 63. 190-250 46- 57 20- 70
SOI-5 F1oodL F1oodH Watertable Kind Months Bedrock Hardness
NCO083 NONE 4.0-5.0 APPARENT DEC -APR 60-60
SOI-5
Depth
Texture
3-Inch
No-10
ClaY%
-CEC-
NC0083
0-36
FS S
0- 0
100-100
0- 8
1-, 3
14CO083
0-36
LS LFS
0- 0
100-100
5-13
1- 4
N00083
36-49
FSL SCL SL
0- 0
100-100
8-26
2- 6
NC0083
49-78
LFS S SL
0- 0
100-100
0-12
0- 3
SOI-5
Depth
-pH- O.M.
Salin
Permeab
Slink -Sall
NCO083
0-36
4.5- 6.5 .5-1.
0-
0
6.0-
20 LOW
NCO083
0-36
4.5- 6.5 .5-1..
0-
0
6.0-
20 LOW
N00083
36-49
4.5- 6.5 0.-.5
0-
0
2.0-
6.0 LOW
NCO083
49-78
4.5- 6.5 0.-.5
0-
0
6.0-
20 LOW
National Cooperative Soil Survey
U.S.A.
4 nr4 1 /12/2009 4:16 1
Official Series Description - FORESTON Series
littp://www2.ftw.nrcs.wda.gov/osd/dat/F/FORESTON.htii
LOCATION FORESTON SC+NC
Established Series
Rev. MHC
05/2008
EOKRUEST'ON SERIES
The Foreston series consists of moderately well drained, moderately rapidly permeable soils that formed
in marine sediment. These soils are on high ridges and slight rises within broad flat interstream divides of
the Coastal Plain. Slopes range from 0 to 2 percent.
TAXONOMIC CLASS: Coarse -loamy, siliceous, semiactive, thernvc Aquic Paleudults
TYPICAL PEDON: Foreston fine sand --forested. (Colors are for moist soil.)
A--O to 6 inches; very dark gray (I OYR 3/1) fine sand; single grain; loose; many fine roots and few
medium roots; many clean sand grains; very strongly acid; abrupt wavy boundary. (4 to 9 inches thick)
E--6 to 12 inches; very pale brovnn (1 OYR 7/3) fine sand; few fine faint brownish yellow (1 OYR 6/6) soft
masses of oxidized iron; single grain; loose common fine and few medium roots; common clean sand
grains; few worn casts; moderately acid; clear boundary. (0 to 12 inches thick)
BE--12 to 17 inches; brownish yellow (1 OYR 6/6) loamy fine sand; few fine faint very pale brown
(1 OYR 7/3) ion depletions; weak medium subangular blocky structure; very friable; few fine and
medium roots; few clean sand grains; few very fine pores; moderately acid; clear smooth boundary. (0 to
7 inches thick)
Bt1--17 to 26 inches; brownish yellow (1 OYR 616) fine sandy loam; common coarse faint brownish
yellow (1 OYR 6/8) and few fine prominent yellowish red (5YR 5/6) soft masses of oxidized. iron; weak
medium subangular blocky structure; very friable; few fine and medium roots; connmon very fine to fine
pores; few clean sand grains; few strong brown nodules that crush with little pressure; strongly acid;
clear smooth boundary.
Bt2--26 to 33 inches; brownish yellow (1 OYR 6/6) fine sandy loam; few medium distinct light gray
(1 OYR 7/2) iron depletions and few fine prominent yellowish red (5YR 5/6) soft masses of oxidized iron;
weak coarse subangular blocky structure; friable; few fine and medium roots; commion fine pores; few
lenses of white (1 OYR 8/1) clean sand grains; strongly acid; clear smooth boundary. (Bt is 12 to 40
inches thick)
BE'--33 to 40 inches; light yellowish brown (I OYR 6/4) loamy fine sand; common medium faint light
gray (1 OYR 7/2) iron depletions and few fine prominent yellowish red (5YR 5/6) soft masses of oxidized
iron; weak coarse subangular blocky structure to massive; very friable; few fine roots; few fine pores;
few fine lenses of white (I OYR 8/1) clean sand grains; strongly acid; gradual wavy boundary. (0 to 10
inches thick)
E'--40 to 51 inches; light gray (1 OYR 7/2) clean fine sand about 38 percent, light gray (10YR 7/1) clean
sand about 31 percent, and very pale brown (l OYR 7/3) coated sand about 30 percent. These colors
t nfA 1/12/2009 4:16 P
Official Series Description-:FORESTON Series
littp://www2.ftw.nrcs,mda.gov/osd/dat/F/FORESTON.litn
occur as large pockets and vertical streaks with few fine distinct strong brown (7.5YR 5/8) soft masses
of oxidized iron within the streaks and pockets; few lenses and streaks of white (l OYR 8/1) clean sand
grains; single grain; very friable; few fineroots; few f ne,pores; strongly acid; gradual wavy boundary. (3
to 15`inches thick)
B't--51 to 61 inches; mottled brownish yellow (1 OYR 6/6), gray (1 OYR 6/1) and yellowish red (5YR 5/6)
fine sandy loam; weal: coarse subangular blocky structure; friable; slightly brittle in the brownish yellow
part; few fine roots; common fine pores; strongly acid; -gradual wavy boundary. (5 to 15 inches thick)
Big--61 to 85 inches; gray (10YR 6/1) fine sandy loam; connnon medium distinct brownish yellow
(l OYR 6/6) and few fine prominent yellowish red (5YR 5/6) soft masses of oxidized iron; weals coarse
prismatic structure; feiable; few fine roots; few fine pores; strongly acid; gradual wavy boundary: (0 to
more than 20 incltes,thick)
C--85 to 90 inches; mottled fight gray (1 OYR 7/1) and very.pale brown (I OYR 7/3) loamy fine sand;
massive;. very friable; very strongly acid.
TYPE LOCATION: Williamsburg County, South Carolina; 4.6 miles southeast on South Carolina
Highway 512 from the intersection of U.S. Highway 52 in Cades, South Carolina; 0.1 mile southwest on
South Carolina Secondary Highway 159; 0.2 mile south on field road; 33 feet northeast of road..
RANGE IN CHARACTERISTICS: Reaction is very strongly acid to slightly acid in the A and E
horizon and very strongly acid or strongly acid in the Bt horizon.
The A or Ap horizon has hue of 1 OYR or 2.5Y, value of 3 or 4, and chroma of 1 or 2. It is sand, fine
sand, loamy sand or loamy fine sand.
The E and F horizons have hue of 10YR or 2.5Y, value of 5 to 7, and chroma oft to 4. Redox features
of higher chroma are present in some pedons. In some pedons the F horizon is discontinuous and is
mottled. It is sand, fine sand, loamy sand, or loamy fine sand.
The upper Bt horizon has hue of 7.5YR to 2:5Y, value of 5 or 6, and chroma of 4 to 6. Redox features in
shades of red, yellow, and brown are present in some pedons and gray iron depletions are within 30
inches of the surface. It is sandy loam or fine sandy loam with less than 20 percent silt. Some pedons
have a thin subhorizon that is sandy clay loam. Many pedons contain lenses and pockets of clean sand.
Some pedons have a few nodules of plinthite.
The B't horizon has line of 7.5YR to 2.5Y, value of 4 to 7, and chroma of 1 to 8. It has few to many
redox features in shades of red, yellow, brown, and gray or it is mottled. It is sandy loam, fine sandy
loam or sandy clay loam.
The C horizon has line of 7.5YR to 2.5Y, value of 4 through 8, and chroma of 1 through 8 or it is mottled
without a donrinant matrix color. It is fine sand, sand, loamy fine sandy, fine sandy loam, sandy clay
loam, sandy loam, or sandy clay and in some pedons it is stratified with these textures.
COMPETING SERIES: (This section has not been reviewed; 4/8/98) These are the Dallardsville and
Harleston series in the same fannily and the Dragston ]ohms, Nansemond, Olanta, Pactolus, Rumford,
Sequatche, and Whitwell series in sini lar families. Dallardsville soils have tongues of albic material in
the B horizon. Harleston soils contain more than 20 percent silt fit the particle -size control section.
Dragston are aquults..Johns and Wltitwell soils are fine:loamy. Nansemond soils do not have secondary
Bt horizons within 60 inches. Olanta, Rumford, and Seouatchie soils do not have mottles of chroma 2 or
r n 1 /12/2009 4:16 !
Official Series Description - FORESTON Series
http://wwiv2.fLw.nrcs.usda.gov/osd/dat/F/FORESTON.htiT
less within 24 inches of the top of the argillic horizon. Pactolus soils are sandy throughout.
GEOGRAPHIC SETTING`: Foreston soils are on nearly level slopes in the Coastal Plain. The soil
formed in loamy marine seduvents. Near the type location the mean annual temperature is 64 degrees F.,
the average annual rainfall is 48 inches, and the frost -free season is about 228 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Autrvville, Bonne au Chiso Dothan,
Fuguay, Goldsboro Kahnia Leon, Lynchbura Lynn Haven, Norfoll Ocilla, Paxville, Rains, Rutleye,
and Wagram soils. The Autryville, Bonneau, Clrisohn, Dothan, Fuquay, Norfollc, and Wagrann soils are
in slightly higher positions on the landscape,aind are better drained. In addition, these soils, except for
Dothan and Norfollc, are arenic. They all have fine -loamy Bt horizons. The Goldsboro soils are in a
similar position on the landscape, but they are fine -loamy. Lynchburg, Ocilla, Paxville and Rains soils
are in slightly lower positions on the landscape and are more poorly drained and have fine -loamy Bt
horizons. Leon, Lynn Haven and Rutlege soils are in the lowest position on the landscape, are more
poorly drained, and are sandy throughout.
DRAINAGE AND PERMEABILITY: Moderately well drained. Surface runoff is slow. Permeability is
moderately rapid.
USE AND VEGETATION: Most areas of these soils have been cleared and are cropped to com,
cotton, tobacco, soybeans, and hay crops. Vegetation of forested areas include various species of pine
with mixed hardwoods.
DISTRIBUTION AND EXTENT: Coastal Plains of Alabama, Georgia, Florida, North Carolina, South
Carolina, and Virginia. These soils are of moderate extent.
MLRA OFFICE RESPONSIBL7 : Raleigh, North Carolina
SERIES ESTABLISHED: Clarendon County, South Carolina; 1972.
REMARKS: Diagnostic horizons recognized in this pedon are:
Ochric epipedon--fioiin 0 to 6 inches,
Albic horizon --from 6 to 12 hnches and from 40 to 51 inches.
Argillic horizon --from 17 to 26 inches and from 51 to 85 inches.
ADDITIONAL DATA: None.
TABULAR SERIES DATA:
SOI-5 Soil Name Slope Airtemn FrFr/Seas Precip Elevation
SCO044 FORESTON 0- 2 62- 66 230-260 42- 50 40- 170
SOI-5 FloodL F1oodH Watertable Kind Months Bedrock Hardness
SCO044
NONE
2.0-3.5
APPARENT DEC -APR. 60-60
SOI-5
Depth
Texture
3-Inch
No-10
Clay%
-CEC-
SCO044
0-12
S ITS
0-
0
100-100
2- 8
1- 3
SCO044
0-12
LS LFS
0-
.0
100-100
5-12
1- 4
SCO044
12-40
SL FSL
0-
0
100-100
10-18
2- 4
S00044
40-51
LFS LS FS.
0-
0
100-100
4-12
1- 2
SCO044
51-85
SL SCL
0-
0
100-100
10-35
2- 5
7 „ra 1/12/20094:16 P
Official Series Description- FORESTON Series
llttp://www2.flw.nrcs.usda.gov/osd/dat/F/FORESTON.litu
SOI-5 Depth -pH- O.M. Satin Permeab Shnk-Shill
SC0044 0-12 4.5- 6.5 .5-2. 0- 0 6.0- 20 LOW
SC0044 0-12 4.5- 6.5 .5-2. 0- 0 6...0- 20 LOW'
SCO044 12-40 4.5- 6.0 .5-1. 0- 0 2.0- 6.0 LOW
SC0044 40-51 4.5- 6.0 0.-.5 0- 0 6.0- 20 LOW
SC0044 51-85 4.5- 6.0 0.-.5 0- 0 0.6- 2.0 LOW
National Cooperative Soil Survey
U.S.A.
d of 4 1 / 12/2009 4:16 F