SW8081222_HISTORICAL FILE_20090227 (3)

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 0� 1222
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
® HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
2 0 0 022�
YYYYMMDD

o
RMORM
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
February 27, 2009
Matthew W. Jordan, CEO
Cape Fear Utility Authority
235 Government Center Drive
Wilmington, NC 28403
Subject: State Stormwater Management Permit No. SW8 081222
Pump Station 35 Expansion
High Density Commercial Sand Filter Project
New Hanover County
Dear Mr. Jordan:
Dee Freeman
Secretary
The Wilmington Regional Office received a complete State Stormwater Management Permit
Application for Pump Station 35 Expansion on February 13, 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 2H.1000. We are forwarding
Permit No. SW8 081222 dated February 27, 2009, for the construction of the subject project.
This permit shall be effective from the date of issuance until February 27, 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 150E 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 Chris
Baker, or me at [phone].
�Sincerely, , ,
�caf��V .! �C s
eorge a Scott
Stormwater Supervisor
Division of Water Quality
GDS/csb: S:\WQS\STORMWATER\PERMIT\081222.feb09
cc: Paul Shivers, P.E., Highfill Infrastructure Engineering, PC
New Hanover County Building Inspections
City of Wilmington Development Services
New Hanover County Engineering
Chris Baker
Wilmington Regional Office
Central Files
Wilmington Regional Office One
127 Cardinal Drive Extension, Wilmington, North Carolina 28405 tvOT'tj'1CalOjlria.
Phone: [phone]\ FAX: [phone]\ Customer Service: 1-877.623-6748 //
Internet: v ,ncxalerquality.org Natmal�lt

State Stormwater Management Systems
Permit No. SW8 081222
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY COMMERCIAL 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
Matthew Jordan and Cape Fear Public Utility Authority
Pump Station 35 Expansion
6337 Oleander Drive, Wilmington, New Hanover County
FOR THE
construction, operation and maintenance of an underground sand filter(s) in compliance
with the provisions of Session Law 2008-211 and 15A NCAC 2H .1000 (hereafter
referred to as the "stormwater rules') and the approved stormwater management plans
and specifications and other supporting data as attached and on file with and approved
by the Division of Water Quality and considered a part of this permit.
This permit shall be effective from the date of issuance until February 27, 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.
2. This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.8 on page 3 of this permit. The stormwater
control has been designed to handle the runoff from 3,545 square feet of
impervious area.
3. The system must be operated with a 50' vegetated filter.
4. The tract will be limited to a total of 9,919 square feet of built -upon area. Of this
total, 6,374 is existing, pre-1988 built -upon area that is not being collected or
treated. The remaining 3,545 square feet of built -upon area is being collected
and treated in the proposed sand filter, as indicated in Section 1.8 on page 3 of
this permit, and the approved plans.
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 081222
7
91
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 post-1988 proposed built -upon areas associated with this project shall be
located at least 50 feet landward of all perennial and intermittent streams.
The following design criteria have been provided in the sand filter(s) and must be
maintained at design condition:
Sand Filter #1
a. Drainage Area, acres:
0.13
Onsite, ftZ:
5,693
Offsite, ftZ:
0
b. Total Impervious Surfaces, ftZ:
3,545
Onsite, ftZ:
3,545
Offsite, ftZ:
0
C. Design Storm, inches:
1.5
d. Sediment Chamber Surface Area, ftZ:
144
e. Sand Filter Surface Area, ftZ:
144
f. Type of Filter, open/closed:
Closed
g. Bottom of Filter Elevation, FMSL:
2.58
h. Bypass Weir Elevation, FMSL:
8.16
i. SHWT, FMSL:
5.67
j. Permitted Storage Volume, ft3:
455
k. Type of Media:
Sand
I. Expected Infiltration Rate, ft/day
3.5
m. Orifice Diameter, inches:
3 underdrains @6"
n. Draw Down Time, hrs:
40
o Predevelopment 1 year 24 hour peak
0.28
flow rate, cfs:
Post development 1 yr 24 hour peak
p'
0.58
flow rate, cfs:
q. Receiving Stream / River Basin
Bradley Creek I
CPF24
r. Index Number:
18-87-24-4-(2)
s. Stream Classification
SC
II. SCHEDULE OF COMPLIANCE
1. The stormwater management system shall be constructed in its entirety,
vegetated and operational for its intended use prior to the construction of any
built -upon surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
3. The facilities shall be constructed as shown on the approved plans. This permit
shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans and specifications, and other
supporting data.
Page 3 of 8

State Stormwater Management Systems
Permit No. SW8 081222
4. Upon completion of construction, prior to issuance of a Certificate of Occupancy,
and prior to operation of this permitted facility, a certification must be received
from an appropriate designer for the system installed certifying that the permitted
facility has been installed in accordance with this permit, the approved plans and
specifications, and other supporting documentation. Any deviations from the
approved plans and specifications must be noted on the Certification. A
modification may be required for those deviations.
The permittee shall at all times provide the operation and maintenance
necessary to assure the permitted stormwater system functions at optimum
efficiency. The approved Operation and Maintenance Plan must be followed in
its entirety and maintenance must occur at the scheduled intervals including, but
not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowin.9 and revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of bypass structure, filter media, flow
spreader, catch basins, piping and vegetated filter.
g. A clear access path to the bypass structure must be available at all times.
6. Records of maintenance activities must be kept for each permitted BMP. The
records will indicate the date, activity, name of person performing the work and
what actions were taken.
7. The permittee shall submit to the Division of Water Quality an annual summary
report of the maintenance and inspection records for each BMP. The report
shall summarize the inspection dates, results of the inspections, and the
maintenance work performed at each inspection.
8. 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.
9. Access to the stormwater facilities shall be maintained via appropriate
easements at all times.
10. The permittee shall submit to the Director and shall have received approval for
revised plans, specifications, and calculations prior to construction, for any
modification to the approved plans, including, but not limited to, those listed
below:
a. Any revision to any item shown on the approved plans, including the
stormwater management measures, built -upon area, details, etc.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the
drainage area.
e. Further subdivision, acquisition, lease or sale of all or part of the project
area. The project area is defined as all property owned by the permittee,
for which Sedimentation and Erosion Control Plan approval or a CAMA
Major permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the
approved plan.
11. The permittee shall submit final site layout and grading plans for any permitted
future areas shown on the approved plans, prior to construction.
Page 4 of 8

State Stormwater Management Systems
Permit No. SW8 081222
12. 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.
13. 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.
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 of a change of ownership, or a name
change, the permittee must submit a completed Name/Ownership Change form
to the Division of Water Quality, signed by both parties, and accompanied by the
supporting documentation as listed on page 2 of the form. 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 permit conditions until such
time as the Division approves the transfer request.
Failure to abide by the conditions and limitations contained in this permit may
subject the Permittee to enforcement action by the Division of Water Quality, in
accordance with North Carolina General Statute 143-215.6A to 143-215.6C.
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) having jurisdiction.
5. 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.
6. The permittee grants DENR Staff permission to enter the property during normal
business hours for the purpose of inspecting all components of the permitted
stormwater management facility.
7. The permit issued shall continue in force and effect until revoked or terminated.
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.
8. Unless specified elsewhere, permanent seeding requirements for the stormwater
control must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
9. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
10. The issuance of this permit does not prohibit the Director from reopening and
modifying the permit, revoking and reissuing the permit, or terminating the permit
as allowed by the laws, rules and regulations contained in Session Law 2008-
211, Title 15A NCAC 2H.1000, and NCGS 143-215.1 et.al.
Page 5 of 8

State Stormwater Management Systems
Permit No. SW8 081222
11. 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.
12. The permittee shall submit a permit renewal application at least 180 days prior to
the expiration date of this permit. The renewal request must include the
appropriate documentation and the processing fee.
Permit issued this the 27th day of February, 2009.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
INNER � Ii10
Division of Water Quality
By Authority of the Environmental Management Commission
Page 6 of 8

State Stormwater Management Systems
Permit No. SW8 081222
Pump Station 35 Expansion
Stormwater Permit No. SW8 081222
New Hanover County
Designer's Certification
I, , as a duly registered in the
State of North Carolina, having been authorized to observe (periodically/ weekly/ full
time) the construction of the project,
(Project)
for (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
Page 7 of 8

State Stormwater Management Systems
Permit No. SW8 081222
Certification Requirements:
1. The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The bypass structure elevations are per the approved plan.
6. The bypass structure is located per the approved plans.
7. A Trash Rack is provided on the outlet/bypass structure.
8. All slopes are grassed with permanent vegetation.
9. Vegetated slopes are no steeper than 3:1.
10. The inlets are located per the approved plans and do not cause short-
circuiting of the system.
11. The permitted amounts of surface area and/or volume have been
provided.
12. All required design depths are provided.
13. All required parts of the system are provided.
14. The required system dimensions are provided per the approved plans.
cc: NCDENR-DWQ Regional Office
New Hanover County Building Inspections
Page 8 of 8

permit Number.'�!`'y�V/�a �—
(to he provided by D IVQ)
Drainage Area Number:
Sand Filter Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity of
structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures
— The drainage area will be carefully managed to reduce the sediment load to the
sand filter.
— Once a year, sand media will be skimmed.
— The sand filter media will be replaced whenever it fails to function properly after
vacuuming.
The sand filter will be inspected quarterly and within 24 hours after every storm event
greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and
maintenance will be kept in a known set location and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall be
repaired immediately.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The adjacent pavement
Sediment is present on the
Sweep or vacuum the sediment as
(if applicable)
pavement surface.
soon as possible.
The perimeter of the
Areas of bare soil and/or
Regrade the soil if necessary to
sand filter
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide time and a
one-time fertilizer application.
Vegetation is too short or too
Maintain vegetation at a height of
long.
approximately six inches.
The flow diversion
The structure is clogged.
Unclog the conveyance and dispose
structure
of -,my sediment off -site.
The structure is damaged.
Make any necessary repairs or
replace if damage is too large for
repair.
The pretreatment area
Sediment has accumulated to
Search for the source of the
a depth of greater than six
sediment and remedy the problem if
inches.
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the 13MP.
Erosion has occurred.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by
hand. If a pesticide is used, wipe it
on the plants rather than spraying.
Form SW401-Sand Filter O&M-Rev.3 Page 1 of 3

13MP element:
Potentialproblem:
How 1 will remediate theproblem:
The filter bed and
Water is pouding on the
Check to see if the collector system
underdrain collection
surface for more than 24
is clogged and flush if necessary. If
system
hours after a storm.
water still ponds, remove the top
few inches of filter bed media and
replace. If water still ponds, then
consult an expert.
The outflow spillway
Shrubs or trees have started
Remove shrubs and trees
and pipe
to grow on the embankment.
immediately.
The outflow pipe is clogged.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
The outflow pipe is damaged,
Repair or replace the pipe.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality 401 Oversight Unit at 9'19-
outlet.
733-1786.
Form S W40I-Sand Filler O&M-Rev.3 Page 2 of 3

Permit Number:�—
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. 1 agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name: Pump Station 35 Expansion
BA4P drainage area number:
Print name: Matthew W. Jordan
Title: Chief Executive Officer
Address: 235 Government Center Drive
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
1, m{nre n it ass u , a Notary Public for the State of
No� Cc.,,-ja County of k)e,,) do hereby certify that
P) a i l-he 61 . \O'ka - personally appeared before me this 2'r
day of qw,L,,,r , 2wy, and acknowledge the due execution of the
forgoing sand filter maintenance requirements. Witness my hand and official seal,
SEAL
My commission expires F2�p 0 3 oZo 1z)
Form SW40I-Sand Filter O&M-Rev.3 Page 3 of

DWQ USE ONLY
Date Received
Fee Paid
Permit Number
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
I. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
Cape Fear Public Utility Authority
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Matthew W. Jordan, Chief Executive Officer
3. Mailing Address for person listed in item 2 above:
235 Government Center Drive
City: Wilmington
Phone: ( 910 ) 799-6064
Email: matt.jorcian©cfpua.org
State: NC Zip: 28403
Fax: ( 910 ) 799-6066
4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
Pump Station 35 Expansion
5. Location of Project (street address):
City: Wilmington, NC County: New Hanover Zip: 28403
6. Directions to project (from nearest major intersection):
On US 76 (Oleander Drive) approximately 1 mile south of the intersection of US 76 (Oleander Drive) and
7. Latitude: 34' 12' 49.5" N Longitude: 77' 50' 05.5" W of project
8. Contact person who can answer questions about the project:
Name: Paul R. Shivers, P.E. Telephone Number: ( 910 ) 313-1516
Email: pshivers©hiepc.com
it. PERMIT INFORMATION:
1. Specify whether project is (check one):
®New
❑Renewal ❑Modification
Form SWU-101 Version 09.25.08 Page I of

2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit number N/A and its issue date (if known) N/A
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 Stormwater
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.
Stormwater for the post 1988 structure and the proposed structures shall be buried trench sand filter.
2. Stormwater runoff from this project drains to the Cape Fear River basin.
3. Total Property Area: 0.55 acres 4. Total Coastal Wetlands Area: 0.049 acres
5. Total Property Area (3) - Total Coastal Wetlands Area (4) = Total Project Area**: 0.501 acres
6. (Total Impervious Area / Total Project Area) X 100 = Project Built Upon Area (BUA): 45.9 %
7. How many drainage areas does the project have? 3
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, complete the table with one drainage area for each engineered stormwater device.
Basin Information
Drainage Area "l
Drainage Area 2
Receiving Stream Name
see attachment
see attachment
Stream Class & Index No.
Total Drainage Area (sf)
On -site Drainage Area (so
Off -site Drainage Area (sf)
Existing Impervious* Area (so
Proposed hnpervious*Area (so
% Impervious* Area (total)
Impervious* Surface Area
Drainage Areal
Drainage Area 2
On -site Buildings (so
see attachment
see attachment
On -site Streets (so
On -site Parking (so
On -site Sidewalks (so
Other on -site (sf)
Off -site (so
Total (so:
* Impervious area is defined (is the built upon area including, but not limited to, buildings, roads, parking areas,
sideeoalks, gravel areas, etc.
**Total project area shall be calculated to exclude Coastal Wetlands from use urlren calculating the built upon area
percentage calculation. This is the area used to calculate overall percent project built upon area (BUA).
Form SWU-101 Version 09.25.08 page 2 of4

Stormwater Management Permit Application Form
Supplemental Data for Section Ill. Project Information; 6.
Gmmn Stntinn 35 Fxnanwinn
Basin Information
Drainage Area 1
Drainage Area 2
Drainage Area 3
Total
Receiving Stream Name
Bradley Creek
Bradley Creek
Bradley Creek
Bradley Creek
Stream Class & Index No.
SC; 18-87-24-4-(2)
SC; 18-87-24-4-(2)
SC; 18-87-24-4-(2)
SC; 18-87-24-4-(2)
Total Drainage Area (sqft)
5,693
11,352
6,891
23,936
On -site Drainage Area (sqft)
5,693
11,352
6,891
23,936
Off -site Drainage Area (sqft)
Existing Impervious Area (sqft)
2,781
3,360
3,014
9,155
Proposed Impervious Area 'sqft)
764
764
%Impervious' Area (total)
62.3
29.6
43.7
41.4
Impervious* Surface Area
Drainage Area 1
Drainage Area 2
Drainage Area 3
Total
On -site Buildings (sqft)
2,781
1,497
4,278
On -site Streets (sqft)
On -site Parking (sqft)
3,360
3,360
On -site Sidewalks (sqft)
Other on -site (sqft)
764
1,517
2,281
Off -site (sqft)
Total (sqft):
1 3,545
1 3,360
1 3,014
9,919
Impervious area is defined as the built upon area including, but not limited to, buildings, roads,
parking areas, sidewalks, gravel areas, etc.
Note: Drainage Areas 2 and 3 will not require permitted treatment as all impervious in those areas was
constructred prior to 1988.

.9. I -low was the off -site impervious area listed above
Projects in Union County: Contact the DWQ Central Office staff to check to see ifyou project it located
within a Threatened & Etclangered Species watershed that may be suh/ect to more stringent stortinv ter
requirements.
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
One of the following property restrictions and protective covenants are required to be recorded for all
subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table
listing each lot number, size and the allowable built -upon area for each lot must be provided as an attachment.
Forms can be downloaded from htto://ii2o.enr.state.nc.us/su/bmp 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 DRPC-4
Low Density Commercial Subdivisions
Porm 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
13MP specified for this project. Contact the Stormwater Permitting Unit at [phone] for the status and
availability of these forms. Forms can be downloaded from hltn://112U.elU'.state.nC.L15/su/bmp forms.htm.
Form SW40'1-Low Density
Form SW401-Curb Outlet System
Form SW401-Off-Site System
Form SW401-Wet Detention Basin
Form SW40"1-Infiltration Basin
Form SW401-Infiltration Trench
Form SW40I-Bioretention Cell
Form SW401-Level Spreader
Form SW401-Wetland
Font SW401-Grassed Swale
Form SW401-Sand Filter
Form SW401-Permeable Pavement
Form SW401-Cistern
Low Density Supplement
Curb Outlet System Supplement
Off -Site System Supplement
Wet Detention Basin Supplement
Infiltration Basin Supplement
Underground Infiltration Trench Supplement
Bioretention Cell Supplement
Level Spreader/Filter Strip/Restored Riparian Buffer Supplement
Constructed Wetland Supplement
Grassed Swale Supplement
Sand Filter Supplement
Permeable Pavement Supplement
Cistern Supplement
Form SWU-101 Version 09.25.08 Page 3 of

VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Office. (Appropriate office may be found by locating project on the
interactive online map at htip://li2o.enr.state.nc.IIS/su/msi mapS.hun)
Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
• Original and one copy of the Stormwater Management Permit Application Form
• Original and one copy of the Deed Restrictions & Protective Covenants Form (if
required as per Part IV above)
• Original of the applicable Supplement Form(s) and O&M agreement(s) for each BMP
• Permit application processing fee of $505 (Express: $4,000 for FID, $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)
VII. 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): Highfill Infrastructure Engineering, P.C.
Mailing Address: 3804 Park Avenue, Unit A
City: Wilmington State: NC Zip: 28403
Phone: ( 910 ) 313-1516 Fax: ( 910 ) 313-3073
VII1. APPLICANT'SCERTIFICATION
I, (print or type name of person listed in General Information, item 2) Matthew W. Iordan
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 recorrddjd, and that the proposed project complies with the requirements of 15A
NCAC 2I-1 ,1000.
Form SWU-101 T'ersion 09.25.08 Page of

Permit Num r� v v /Z 2. Z-
(to be provided by DWQ)
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form must be filled out on line, printed and submitted with all of the required information.
Make sure to also fill out and submit the Required Items Checklist (Section III) and the 18M Agreement (Section IV)
Project name
Contact name
Phone number
Date
Drainage area number
II. DESIGN INFORMATION, "
Site Characteristics
Drainage area (AD)
Impervious area
% Impervious (IA)
Design rainfall depth (Rd)
Peak Flow Calculations
1-yr, 24-hr runoff depth
1-yr, 24-hr intensity
Pre -development 1-yr, 24-hr runoff
Post -development 1-yf, 24-hr runoff
Pre/Post 1-yr, 24-hr peak control
Storage Volume
Design volume (WOV)
Adjusted water quality volume (WQVAai)
Volume contained in the sedimentation basin and on top of the sand filter
Maximum head on the sedimentation basin and sand filter (hM.Filtw)
Average head on the sedimentation basin and sand filter (hA)
Runoff Coefficient (Rv)
Type of Sand Filter
Open sand filter?
If this is an open sand filler: The clearance between the bottom of the sand
filter and the SHWT (dsHv,r)
Closed/pre-cast sand filter?
If this is a closed sand filter: The clearance between the bottom of the sand
filter and the SHWT (ds,,,,)
If this is a closed, underground closed sand filter: The clearance between
the surface of the sand filter and the bottom of the roof of the underground
structure (dsp,,)
Paul R. Shivers, P.E.
5,693.001 it' OK
3.545.00 it'
62.3% %
1.%in
I 3.80
n
( 0.16
linlhr
f 0.28
ft'IseC
I 0.58
Ift�lsec
0.30
ft'Isec
289 47it'
217.10 it' OK
455.04
1,56ft Insufficient depth.
I 0.79,it OK
0.61 (unitless)
N YorN
it
Y I YorN
2.50 it
2.00it DEC 0 8 2008
I
Form SW401-Sand Filter-Rev.3 Parts I and II. Project Design Summary, Page 1 of 3

Sedimentation Basin
Permit Number:
(to be provided by DWO)
Surface area of sedimentation basin (As)
Sand Filter
Surface area of sand filter (AF)
Depth of the sand media filter bed (dF)
Coefficient of permeability for the sand filter (k)
Time to drain the sand filler (t)
Time to drain the sand filler (t)
Additional Information
Does volume in excess of the design volume bypass the sand filter?
Is an off-line flow -splitting device used?
Does volume in excess of the design volume Flow evenly distributed through a
vegetated filter?
What is the length of the vegetated filter?
Does the design use a level spreader to evenly distribute flow?
Is the BMP located at least 30ft from surface waters (50ft if SA waters)?
Is the BMP located at least 100ft from water supply wells?
Are the vegetated side slopes equal to or less than 3:1
Is the BMP located in a recorded drainage easement with a recorded access
easement to a public Right of Way (ROW)?
What is the width of the sedimentation chamberiforebay (Wse,)?
What is the depth of sand over the outlet pipe?
Sedimentation
Chamber
(or Forebap)
Floc
In-Sihr Soil
2* fl
IVSed
Figure 1: Open Sand Filter
OK. Meets minimum, but may need to be increased to
144.00 ft 2
contain the required volume if error under Storage
Volume section.
OK. Meets minimum, but may need to be increased to
144.00 ft2
contain the required volume if error under Storage
j I
Volume section.
2.42 ft
I 3.50.(f /day)
40.06,hours
OK. Submit drainage calculations.
1.67 days
Smtd Filter
C1a be,
i 1
Outlet Pipe
Hish Water Table
j ..
1_'fl
Y or N OK
Y or N Insufficient Flow spider.
Y or N OK
Y or N
Show how Flow is evenly distributed.
Y or N
OK
Y or N
OK
Y or N
Insufficient vegetated side slopes.
YorN
OK
('Pi,. 1 (IF
(ISHWr
OK
OK
Form SW401-Sand Filter-Rev.3 Parts I and 11. Project Design Summary, Page 2 of 3

Permit Number.
• •
(to be provided by DWQ)
Figure 2: Closed Sand Filter
Cover Chates
Web
Flow
-
Sand
Outlet Pipe
Ovednnd
Flow.
....................
fII
..pace
e
pip.
` CI
Col1c1'ete (or odltl'
F
shuchu'al nlnterial)..
.............................
%
....................
GI-Sihl Soil
E1*R
I
i 15HWr
Seasonably High
Water Toble
Wafer
Snblueutation Chaulber (Fdrebay)
Sold Filtcr Chmuha'
Collected
(Heavy aedmmu,
(Trapped Solid,)
Organic, Debris) ,
Form SW401-Sand Filter-Rev.3 Parts I and It Project Design Summary, Page 3 of 3

HIGHFILL
INFRASTRUCTURE
ENGINEERING. P.C.
February 13, 2009
Mr. Chris Baker
Environmental Engineer 11
State Stormwater Review Program
NCDENR
127 Cardinal Drive Extension
Wihnington,NC 28405
Re: Pump Station 35 Expansion
Stormwater Project No. SW8 081222
Response to Request for Additional Information
New Hanover County
Dear Mr. Baker:
3804 Park Avenue, Unit A
Wilmington, North Carolina 28403
Tel[phone] Fax[phone]
REM FEB 1$ 2009
Below is the list of information requested to continue the stormwater review taken from your letter
Request for Additional Information, dated January 15, 2009 with responses:
The overflow/hypass weir must discharge to a 50' vegetative filter.
Due the existing site and nature of this project, it is impractical to meet the requirement of a 50'
vegetative filter and 65 If of level spreader per I cufl/s of flow. Per our phone conversation
(2/12/09), you stated you would require a level spreader that would be at least the minimum
length of 13 If as long as we reduced the velocity to less than 2 ft/s. Based on a peak flow of
1.2 cufl/s for the 100-year storm, we've included the addition of 15 If of level spreader that will
reduce the velocity to 0.92 ft/s. Therefore, I have revised paragraph 3 of 2.0, C., x., in the
Stormwater Management Narrative and revised drawing C-1.2 to include a level spreader call
out and project specific detail.
2. Please provide buoyancy calculations for the sand filter. Remember a PE seal is required for
all engineering calculations.
Attached are two copies of the buoyancy calculations for the sand filter with my seal.
Bouyancy was calculated based on complete submergence due to the 100-year flood elevation.
3. Please show the seasonal high water level on the sand filter section view.
The seasonal high water table (SHWT) has been indicated on all three section views as 5.67'.
This elevation was derived based on subtracting 40" (from the ECS Seasonal High Water Level
Estimation report provided previously) from the existing finished grade of approximately 9.00'.
intelligent solutions... sustainable infrastructure

Mr. Chris Baker
02/13/09
Page 2
Show and spec out water stops at all joints below the seasonal high water level.
A note was added to the section view of 2/C-1.2 stating that pre -cast section joints shall be
sealed with ConSeal CS-231 waterstop or approved equal. A note was also added stating that
the outlet pipe shall be connected to the sand filter with a water stop grouting ring in accordance
with ASTM C1478.
The sand filter supplemental form calls out 2.42' ofsand depth but section view A -A on sheet
C/.2 shows a dimension of 1 '-7 " for the sand depth, please correct.
The section view A -A on sheet C-1.2 has been revised to indicate 2'-5" (2.42') of filter media
(sand) depth.
Based on these revisions we have included the following:
2 copies of the revised Stormwater Management Narrative.
2 copies of the revised sheet C-1.2
2 copies of sealed Sand Filter Bouyancy calculations
If you have any questions, or need further information, feel free to give me a call.
Sincerely,
HIGHFILL INFRASTRUCTURE ENGINEERING, P.C.
Paul R. Shivers
Project Manager
enclosures
cc: Mr. Chris Bowling, CFPUA

STORMWATER MANAGEMENT NARRATIVE
FOR THE
PUMP STATION 35 EXPANSION
CAPE FEAR PUBLIC UTILITY AUTHORITY
WILMINGTON, NC
August 2008
REVISED February 2009
HIEPC Project No. KHAO801
" BY:
030236
Z1iZ/Oy
z
FEB 1 9 2009
Prepared by:
IN 0
3804 Park Avenue, Unit A
Infrastructure Engineering. P.C. Wilmington, North Carolina 28403
TO 910-313-1516 Fax [phone]

Table of Contents
1.0 Purpose
2.0 Project Narrative
a) Project Description
b) Existing Site
c) Stormwater Design Information
d) Maintenance Requirements
3.0 USGS Vicinity Map
4.0 Property Information (NHC GIS)
a) 6341 Oleander Drive
b) 6337 Oleander Drive
5.0 ECS Soils Report
6.0 Hydraflow Hydrographs
7.0 Detailed Sand Filter Calculations
8.0 Stormwater Management Permit Application
9.0 Sand Filter Supplement
10.0 Deed Restrictions and Protective Covenants Form
11.0 Watershed Classification Form
12.0 Drawing List
Cover
C-0.0
C-1.2

1.0 PURPOSE
This Stormwater Narrative provides data for the North Carolina Division of Water
Quality (DWQ) that demonstrates stormwater requirements will be met at the project site.
This data is based on soils investigations conducted at the site to identify seasonal high
water table (SHWT) and infiltration rate.
The measures designed in this report have adequate capacity to control and treat runoff
from the impervious surfaces required upon completion of this project.
2.0 PROJECT NARRATIVE
a) Project Description
Pump Station 35 is located on Oleander Drive at Bradley Creek and is currently
contained on two neighboring properties. This pump station is one of the Cape Fear
Public Utility Authority's largest pump stations and this project will provide greater
capacity and reliability. The majority of this project will be internal including but not
limited to pump, screening and electrical upgrades to give greater capacity. The only
impervious surface that will be added to the site will be a new generator and a larger
generator fuel tank to supply the station with enough fuel to operate for five days during a
power outage until fuel will need to be replenished. This will include a total of 764 sgft
of additional impervious surface. All other work associated with this project will be
within existing structures.
The stormwater runoff from this additional impervious surface along with impervious
surface from two existing buildings will be managed by a sand filter of buried trench
design due to site constraints.
A vicinity map showing the location of the project is included in Appendix A and on the
drawings.
b) Existing Site
Pump Station 35 was constructed in components between 1981 and 1985 on one piece of
property. The property deed and copies of record drawings indicating construction date
are included in Appendix B. In 2007, the adjacent property was purchased that had two
existing buildings, a large gravel driveway/parking area and a billboard. Research
indicates that the existing building closest to Oleander Drive was constructed in 1955 and
that the other building was constructed in 1994. The driveway/parking area was installed
in 1955 with that building and was expanded for use in constructing Pump Station 35
from 1981 through 1985. The property deed and copies of tax records indicating
structure construction dates is included in Appendix C.
Based on existing conditions and the proposed project, the Wilmington Regional Office
of the Division of Water Quality indicated that this project would require a permit and
would be considered high density.

c) Stormwater Design Information
The information presented in this section describes the specific design data used in the
design of the stormwater measures.
i) Rainfall Data
The pre- and post -development peak runoff rates and the volume of runoff
generated by the 1-year, 24-hour storm were modeled using Hydraflow 2004.
The program uses the Rational runoff method and rainfall data for the specific
site.
The precipitation data is for this design came from NOAA. The 24-hour rainfall
depth for the I -year storm is 3.81 inches and the intensity is 0.27 inches/hour.
ii) Survey Information
A detailed land survey is provided by McKim and Creed. Vertical data based on
NAVD 88.
iii) Offsite Runoff
Due to site and surrounding topography, no offsite runoff will flow onto this site.
iv) Soils Investigation
ECS Carolinas, LLP, performed a soil investigation on July 1, 2008. At this
time, ECS conducted a subsurface soil and groundwater exploration at two
requested locations. Based on findings the soil appeared to fill to the depths
reached in the boring locations where refusal was not immediate. On the one
boring that reached deep enough, the Seasonal High Water Table (SHWT) was
estimated to be 40" below the surface. The ECS investigation report is included
in Appendix D.
As this would place the SHWT in fill, only a properly designed buried trench
sand filter will meet DWQ State Stormwater requirements for control and
treatment of runoff for this project. As this is a rigid enclosed system, Mr.
Vincent Lewis, state soils scientist for the North Carolina Department of
Environment and Natural Resources, was not asked to visit the site for
verification of the findings.
The bottom of the designed sand filter will be below the SHWT but will be
designed to counter flotation and the system will have no other interaction with
the SHWT.
v) Design of the Buried Trench Sand Filter System
The buried trench sand filter system proposed for this project will utilize pre -cast
concrete sections connected on -site into a water tight strurcture. Run-off from
the drainage area being treated will be conveyed to the sand filter by surface flow
and will enter the sand filter through grates over the sedimentation chamber

portion of the sand filter.
vi) Site Characteristics
The total site area including both properties and all drainage area is 0.55 acres.
The site has been subdivided into three drainage areas based on treatment
requirements. See the Chart 2.1 for project drainage area information.
Chart 2.1 - Drainage Area Statistics
Drainage I
Area l
Drainage
Area 2
Drainage
Area 3
Total
Area
Total Area
5,693 ft
11,352 ft
6,891 ft
23,936 ft
Existing Impervious Area
2,781 ft
3,360 ft
3,014 ft
9,155 ft
Proposed Impervious Area
764 ft
0 ftz
O ft
764 ft
* Existing Impervious Area in Drainage Area I included in design of sand
filter.
Drainage Areas I & 2 will not be controlled and treated as the impervious surface
in those areas was constructed prior to 1988. All of the run-off from Drainage
Area 1 will be managed by a pre -cast concrete buried sand filter.
vii) Pre and Post Development Rate
In order to meet the requirements for Structural Stormwater Controls, the
required storage volume must be discharged at a rate equal to or less than the
predevelopment discharge rate for a one-year, 24-hour storm.
To determine the pre and post development flow rates, the Rational Method was
used along with the modeling program Hydraflow. The run-off coefficients used
were as follows:
C for impervious area = 95
C for grassed area = 35
Using the above C values 35 was used for pre -development flow even though
existing impervious area as we assumed no development. The Hydraflow model
calculated a composite C value of 72 for the post development flow based on
38% of the area at a C of 35 and 62% of the drainage area at a C of 95. Based on
these C values, the model indicated the peak flows calculated by the model are as
follows:
Pre -development peak flow = 0.28 cuft/s
Post -development peak flow = 0.58 cuft/s
See appendix E for Hydraflow model hydrographs.
These flows are so low it is impractical to restrict the Post -development flow to
the Pre -development flow rate as this will have negative impacts on the treatment
quality of the sand filter.

viii) State Stormwater Requirements
The site is located within %2 miles of and draining to SC classification waters.
State stormwater requirements are that the system must contain and treat the
entire 1.5" storm volume.
Based on using a buried trench sand filter the key values calculated are as
follows:
Rv = 0.613
Volume of 1.5" Storm = 424 tuft
Water Quality Volume = 289.47 cult
Minimum Sedimentation Basin Surface Area = 19.14 sqft
Minimum Sand Filter Bed Surface Area = 37.37 sqft
The sand filter designed for this project has the following criteria
Volume of storage above sand filter media = 455 tuft
Sedimentation Basin Surface Area = 144 sqft
Sand Filter Bed Surface Area = 144 sqft
Therefore ail design criteria are met. For review of the calculations of the above
values see Appendix F.
ix) City of Wilmington Stormwater Requirements
This project does not fall within the threshold of the City of Wilmington's
stormwater requirements.
x) Underdrain and Outlet Discussion
The sand filter will have an underdrain that conveys the treated run-off to the
discharge chamber. The calculated required underdrain for this project was a
minimum of 2 — 6" perforated pipes at a slope of 0.5%. For a 1.5 safety factor
this design includes 3 — 6" underdrain perforated pipes.
The total maximum effluent flow of the sand filter based on combining the max
flow through the filter and the filter overflow is 12.87 cuft/s. This is the max
flow that the filter will allow to pass and anything above this flow will not enter
the sand filter. Based on this effluent flow, the minimum diameter of the effluent
pipe was calculated as 7 inches. Due to a desired safety factor of 1.5 the pipe
outlet used for this sand filter is 12 inches.
Stormwater rules require a level spreader length of 65 If per 1 cuft/s with a 50'
buffer strip between the level spreader and the wetland. Due to the nature of this
project, DWQ agreed that we could install a level spreader with sufficient length
to reduce the velocity to less than 2 ft/s. Therefore we propose the installation of
15 If of level spreader at the sand filter discharge. The Hydraflow model
indicates that the peak flow for a 100-year storm will be 1.2 cuft/s. Assuming
this peak flow is passed through the sand filter with no attenuation and using the

weir equation, the velocity of flow over 15 If of weir is 0.92 ft/s. This is well
below 2 ft/s as requested by DWQ for this project.
xi) Additional Measures
In order to minimize filter media pass through the sand filter is designed with a
geotextile fabric to be placed between the t#57 stone covering the underdrain pipe
and the sand filter media.
d) Maintenance Requirements
i) The filter media in the sand filter will be cleaned, washed, course masonry sand
meeting the requirements of ASTM C33.
ii) The sand filter must be inspected quarterly and within 24 hours after every storm
event greater than 1.5 inches.
iii) Records of inspection and maintenance will be kept on site and will be available
upon request.
iv) The drainage area will be carefully managed to reduce the sediment load to the
sand filter.
v) Once a year the sand media will be skimmed to remove potential areas of
fouling.
vi) Any filter media removed due to fouling will be replaced to maintain the proper
filter media depth.
vii) The sand filter media will be replaced whenever it fails to function properly after
vacuuming.

New I fanover County
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315717.20,3909.000
6341 OLEANDER OR
WILMINGTON
65S1
GOV-Exempt Government
491-Utilities
.1541
Osl-OFFICE &INSTITUTION
PT 17 HINES DIV BRADLEY
Wa4
NEW MAN CNTY
WILMINGTON
NC
28403
The data is from 2008
6341 OLEANDER DR CURRENT RECORD
toff f
Ra orn to Search Rosults
Inn Portable Summary
a Printable Version
Data Copyright New Hanover County (Disclaimer] (Privacy Policy) Last Updated: 21 ]ul 2008
7 Site Design Copyright 1999-2006 Akanda Group L-C. All rights reserved.
____-_.__.___h++n:././ota.:_oh,.,..w_coo.+./�or_.ro.e%Da.hlolca.co� )r++.nr.7...=0.:...61.ea11 Rr_tavilr�,.,•_-2ppR.Coumcea=l.,2_ 7/2d/�QQ�_...___.-_

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PARID: R05020-003-015-000
NEW HAN CNTY
Sales
Sale Date Sale
Price
Grantee
01-DEC- $3,OD0
NEW HANOVER COUNTY
81
01-MAY- $0
STATE OF NORTH
55
CAROLINA
Sale Details
Sale Dole
Sale Key
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Grantee
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6341 OLEANDER DR
CURRENT RECORD
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Grantor
Book Page Sale Key
STATE OF NORTH
1196 1113 195879
CAROLINA
• NOT IN SYSTEM
0566 0548 195878
01-DEC-81
195879
$3.000.00
NEW HANOVER COUNTY
STATE OF NORTH CAROLINA
D-Deed Stamps (Unvenned)
1196
1113
U-Unqualified
VACANT
Warranty Deed
is Printable Summary
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Data Copyright New Hanover County [Disclaimer] (Privacy Policy] Last Updated: 21 Jul 2008
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alA.c$raw_trea�_2009R,o.rm�en. :. 1.&mU—_-_7J7d/200R___—_-_.

ti
each PROF
h e
S' STATE OF NDRM CARMM 196 1 1 13
i OWNTY OF WA HANNEd
THIS MOD made this the L day of ED., ,I'l 1988/,
by and bcbgm the STATE OP �A E CARDLUA, hereinafter ) n as the caWANT t,
acting on behalf and at the request of its agency, the Department of Trans-
lnrtation, and the OX M OF NEW l IMM, hereinafter icon as the GRANTEE;
H DTNE SS ET Bn
M7 *01111S, the State Highway Caoa)Ssim (nca Department of Wans-
portation), in the edetruatdtc of Dcpartant of Transportation Project
8.13534, New Hanover musty, has heretofore acquired fee simple title to
certain lands in Mw Banouer county, North Carolina from Charles S ttan
by teed dated May 30, 1955, r6mrdod in cook 566 at Page 548 of the Nor
Hanover County Registry: and
WfO UAS, only a portion of said lands was eroded for highway
I O'HI 11 ems. and
MEREAS, the [bard of
Transportation has authorized the sale of
y x � said lands by resolution passed on the 9th day of October, 1981;
CW 111
NOW, 21tM FME, for and in consideration of the premises, and the
19
sum of TEN DDUARS ($10.00), and other good and valuable consideration.
Zreceipt Of which is herely adamloi9Ni, the Y31WnM, has bargained and
¢O ^ sold, and by tlrro Presents, does 6ugaia, sell, grant and convey Into the
z,4. said GRANM, its 5 =_sOC- and assigns, in fee sinple absolute, that tract
N U
! I [ E 6 0 or Parcel of land lying and bang m Nov blanouer comity, North Carolina, mr
ria•rti ✓.r• Particularly described as follows:
BMURUaG at a point in the northwestern live of Oleander
Drive (U.S. Nighoy 76) (50.0 feet from the c aternse
thereof) at its inta.section with the southestorn lire of
the tract conveyed to the North Carolina State Bdghrmy and
Public tbrds Ommission by deed dated May 30, 1955 re-
corded in Deal Balk 566, Page 548 in the New 8mover
muntY lasiistrY, said Point located 166.25 feet as mnammd
scrtb aesbard with said northwestern line from a point in
the lire the
n
of nOrthest Projection of the southwest fax
of the south st ale trot of the Bradley Creek HigbW
.
19
; n
fridge: running thaw foam said Beginning with the south-
west line of State BighW are Public works oamm)ssim
o m
Tract north 59 degrees 10 minutes west $3.72 feet to a
J
Points theca north 17 degrees 50 minutes 30 seou ds east
Y Q 3
135.27 feet to a Pointe thence south 59 degrees 10 minutes
east: 49.59 feet to a point in the nnorthwest line of Oleader
Dnive: thence with said Use south 16 degrees 17 minutes
west 66.a 25 feet d south 16 degrees 16 minatas 30 second
west 70.00 feet to the Point of BaGnmG, containing 0.156
F
acre and bwq
Tract remsdei said State� and Public
athe
WWzks C> Page sae.
0
�q
72
i

y y� a^1 I''i_ t 5'x �'F 9ly w•�'�' �'
ii � � 3 s�� g� � 6 ,,,GGG � li I"I;"�• � t�l iY ". 9 W q�

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315717.2D.2845,000
6337 OLEANDER DR
WIILMINGTON
6551
COM-Canrnetclal
730-Business
1
.3829
081OFFICE d INSTITUTION
LT 17 HINES DMLT 70)(177
WM
NEW HANOVER COUNTY
WILMINGTON
NC
26a03
The data Is from 2008
6337 OLEANDER DR CURRENTRECORD
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Ia Printable version
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______L,,nn; //stay_nhrnn«r_n,ml_Rnrm.CCDaralafc_:rcnv_2mpri.>=nrnfi..la_a n.JP�taxar_ar�OQ$.P,nlun ct n-1 ..__.........

New Hanover County
New Hanover County
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PARID: R05620.003-013-000
NEW HANOVER COUNTY
6337 OLEANDER DR
CURRENT RECORD
E 1 of 1
Sales
Sale Date Sale Price Grantee Grantor
Book Page Sale Key
Return to Search Results
23-JUL-07 $750000 NEW HANOVER COUNTY LEBENICH JOHN
5210 1945 422870
20-DEC-06 $31,000 LEBENICH JOHN HUNNICUTT NELL
5120 2120 414194
240CT-06 $100,000 TLC PROPERTIES INC LEBENICH JOHN ETAL
5094 2141 411583
26-FEB-93 $0 LEBENICH JOHN ETAL LEBENICH RITA A
1647 0148 195877
Printable Summary
12-MAY-89 $0 RENN LOUISE V RENN LOUISE V
1449 1955 195875
12-MAY-89 $D RENN LOUISE V RENN LOUISE V
1449 1953 195874
Ia Printable Version
17-MAR- $120.000 LEBENICH JOHN RITA ETAL RENN LOUISE V
1M9 1957 195876
89
01-DEC-82 $0 RENN WILLIAM F SR LOUISE V HINES JAMES I EVELYN R 1213 0598 195873
01-NOV-81 $0 HINES JAMES I EVELYN R HINES J E ESTATE
1195 0188 195872
01JAN42 $0 HINES J E ESTATE ' NOT IN SYSTEM •
0334 0339 195871
Sale Details
1 m 1D k
Sala Dale 23-JUL-07
Sole Key 422870
Sae Price $750,000.00
Grantee NEW HANOVER COUNTY
Grantor LEBENICH JOHN
Sale Source
Back 5210
Page 1945
Sale Valiant D-Ouoliricd'
Sale Type IMPROVED
Sale Flag
STIES
Instrument e
Instrument Type Warranty Deed
Ad). Reason
Adj, Prim
Ad), Amount
Data Copyright New Hanover County [Disclaimer] [Privacy policy] -a St Updated:
21 Jul 2003
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._...>.c.>lT:.cn .c/DataJs+t�cn: 2cmc.rlv_=caL.cRtraxlt 011__704tW0$__..___._.___

Lili �����o{���n
2e07036840
FOR RE6r5TRRr10N REGISrfF OF DEEDS
FER . F. V
REY -jUrR M2 33
2001 JUL 23 02:33:43 FM
0(:521ll K REV STf l 3 00
151191; 2N703685@
WARRANTY DEED
WE PREPARED THE DEED IN THIS TRANSACTION BUT WE MADE NO
EXAMINATION OF TITLE AND WE EXPRESS NO OPINION ON TITLE TO THE
PROPERTY
Prepared by: MURCHISON, TAYLOR & GIBSON, PLLC
16 North Fifth Avenue, Wilmington, NC 28401
a
Revenue Stamps$ 15 -61L
STATE OF NORTH CAROLINA
TAX PARCEL R0562"03-013-000
COUNTY OF NEW HANOVER
THIS DEED, made this a 3 elL day of July, 2007 by and between JOHN
LEBENICH, an unmarried person, (herein called "GRANTOR") and NEW HANOVER
COUNTY, a body politic and subdivision of the State of North Carolina, whose mailing
address is 230 Marketplace Mall, Wilmington, NC 28403 (herein called "GRANTEE").
WITNESSETH THAT:
THE GRANTOR, for and in consideration of the sum of Ten Dollars ($10.00)
and other valuable considerations to him in hand paid by the GRANTEE, the receipt whereof is
hereby acknowledged, has bargained and sold, and by these presents does hereby bargain, sell
and convey unto GRANTEE and its successors and assigns forever, all that certain real property
located in the City of Wilmington, New Hanover County, North Carolina, described as follows:
See Exhibit A attached hereto and incorporated herein by
reference.
SUBJECT TO all easements, rights of way, covenants, restrictions
and other matters of record; all governmental land use statutes,
ordinances and regulations, including zoning, subdivision and
building regulations; and ad valorem taxes for the current and
subsequent years.
TO HAVE AND TO HOLD the above granted and described property, together
with all and singular, the rights, privileges, easements, tenements and appurtenances awreunto
belonging, or in anywise appertaining unto the said GRANTEE and its successors and assigns,
in fee simple, forever.
75901 0
Prepared By & Return
To: MTG, PLLC

AND THE GRANTOR, for himself, his heirs, successors and assigns, does
covenant to and with the said GRANTEE and its successors and assigns, that he is seized in fee
of the above granted and described property; that he has good right to sell and convey the same in
fee simple; that the same is free and clear from any and all restrictions, easements or
encumbrances, except those mentioned above; and that he will and his heirs, successors and
assigns shall warrant and defend the title to the same against the lawful claims and demands of
any and all persons whomsoever.
IN TESTIMONY WHEREOF, the said GRANTOR has hereunto set his hand
and seal as of the day and yen first above written.
J94N LEJJENICH
STATE OF NORTIi CAROLINA
COIJNTY OF i2-¢f.Jwc..atw
1, J4b ITN E. is"n EA soAj , a Notary Public in and for the State
and County aforesaid, do certify that John Lebenich, an unmarried person, personally appeared
before me this day and acknowledged the due execution of the foregoing instrument.
WITNESS my hand and official seal this a3A-'day of July, 2007.
Notary Public ,�tt
Printed Name of Notary: r4 8, E . I`i�t! OE2 Soul
My Commission Expires: 3 - 3 o 42 �—S?
�,:apTAgy oy
BUG "I
'INovER Gbo� v`�\
/IIIIII1110
73901 Q

EXHIBIT A
BEGINNING on an iron on the western right-of-way of U.S. 76 (Oleander Drive), said
right-of-way having a width of 100 feet, said beginning point being located North 25 degrees I 1
minutes 3 seconds East 703.91 feet from a point at the intersection of the centerline of Oleander
Drive and Bradley Drive; proceed from said beginning point with the western right�of--way of
Oleander Drive a curve to the left having a radius of 1385.52 feet and a chord of Notch 21
degrees 38 minutes 10 seconds East 69.34 feet to a point on said right-of-way, thence continuing
with said right-of-way and said curve a chord of North 18 degrees 56 minutes 42 seconds East
60.81 feet to an iron, thence North 59 degrees 50 minutes 00 seconds West 130.86 feet to an iron
thence South 23 degrees 55 minutes 34 seconds West 128.98 feet to an iron, thence South 59
degrees 50 minutes 00 seconds East 138.96 feet to the point of beginning, according to a survey
by Hanover Design Services in January of 1989. All bearings are magnetic relative to Map Book
20, Page 50,
EXCEPTING from the above described tract an easement to the City of Wilmington as
shown and described in Deed Book 1440 at Page 1204, New Hanover County Registry.
ALSO EXCEPTING Gom the above described tract an easement to TLC Properties, Inc
as described in Deed Book 5094 at Page 2141. New Hanover County Registry.
SUBJECT TO all easements, rights of way, covenants, restrictions and other matters of
record; all governmental land use statutes, ordinances and regulations, including zoning,
subdivision and building regulations; and ad valorem taxes for the current and subsequent years.
For sources of title see Deed Book 1449 at Page 1957, Deed Book 1647 at Page 149, and
Deed Book 5120 at Page 2120, New Hanover County Registry.
75901 r3

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PARID: R05620-003-013-000
NEW HANOVER COUNTY
Commercial
Card
1
Building Number
Structure Code/Description
RSO-RSO
Improvment Name
Units
Year Built
1959
Effective Year Built
Grade
0+
Class
C-COM
Other Improvements
Other Imp Value
Total Under Roof
1080
Building Factor
1
Percent Complete
%
Percent Good
48%
Notes
Other Feature Details
Card
2
InVExt Line
1
Area
Measurement 1
1
Measurement 2
78
Identical Units
2
Summary of Interior/Exterior Data
Cam Line Number
Section
From Floor
1 1
1
01
2 1
1
01
2 2
1
02
Interior/Exterior Details
Card
1
Line Number
1
Section
1
From Floor
01
To Floor
01
Area
1,080
Use Group
RSO
Class
Physical Condition
F
Construction
1-1
Wall Height
10
Interior Wall
2-2
Air
1-1
Plumbing
0-0
Units
Functional Dept.
Economic Depr.
Summary of All Other Features
Card III Line
2 1
The date Is from 2008
6337 OLEANDER DR CURRENT RECORD
1of2 1 N 4I 'Of1 1 N
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To Floor
Area
01
1,080
01
1,440
02
1.440
Area
= /
Li Printable Summary
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Data Copyright New Hanover County [Disclaimer] [Privacy Policy] Last Updated: 04 Aug 2008
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New Hanover County
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New Hanover County
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Parcel Map
Home Property Records
Owner Address
PARID: R05620-003-013-000
NEW HANOVER COUNTY
Commercial
Card
2
Building Number
2
Structure Code/Description
OFL-OFL
Improvment Name
Units
Year Built
1994
Effective Year Built
Grade
D.
Class
C-COM
Other Improvements
Other Imp Value
Total Under Roof
2880
Building Factor
1
Percent Complete
%
Percent Good
77%
Notes
Other Feature Details
I CONTACT US I HELP
NHC Tax Home > Register of Deeds Home
Parcel ID Advanced
6337 OLEANDER OR CURRENT RECORD
N I 1of1 r N
Return to Search Results
Card 2
InVExt Line 1
Area
Measurement 1 1
Measurement 2 78
identical Units 2
Summary of Interior/Exterior Data
Card Line Number Section
From Floor
To Floor
Area
1 1 1
01
01
1,080
2 1 1
01
01
1.440
2 2 1
02
02
1."0
Interior/Exterior Details
1 of 3
Card 1
Line Number 1
Section 1
From Floor 01
To Floor 01
Area 1,080
Use Group RSO
Class
Physical Condition F
Construction 1-1
Wall Height 10
Interior Wall 2-2
Air 1-1
Plumbing DO
Units
Functional Depr.
Economic Depr.
Summary of All Other Features
Card Int Ext Line
Area
2 1
The data is from 2008
Parasols Summary
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QrM
ECS CAROLINAS, LLP July 7, 2008
CAR cotes gl
hcal • Construction Materials • Environmental • Facilities
aUlHigInf wtructure Engineering, P.C.
3804 Park Avenue, Unit A
Wilmington, North Carolina 28403
Re: Seasonal High Water Level Estimation
Pump Station 35
Wilmington, North Carolina
ECS Project No. 22.14224
Dear Mr. Shivers,
ECS Carolinas, LLP (ECS) recently conducted an estimation of the Seasonal High Water Level (SHWL)
for the storm water treatment area at the Pump Station 35 in Wilmington, North Carolina. This letter,
with attachments, is the report of our estimation.
Field Testing
On July 1, 2008 ECS conducted an exploration of the subsurface soil and ground water conditions at two
requested location shown on the attached Site Diagram. ECS met with Mr. Paul Shivers with Highfill in
order to locate the borings. The purpose of this exploration was to obtain subsurface information of the
in -place soils for the proposed storm water treatment areas. We explored the subsurface soil and ground
water conditions by advancing hand auger borings into the existing ground surface at the requested boring
locations. We visually classified the subsurface soils and obtained representative samples of each soil
type encountered. We also recorded the ground water level observed at the time of each hand auger
boring. The attached SHWL sheet provides a summary of the subsurface conditions encountered at each
hand auger boring location.
The ground water level and the seasonal high ground water level (SHWL) were estimated at each boring
location below the existing grade elevation. Below is a summary of each boring location
Location
Water Level
SHWL
1
Auger Refusal 36"
Auger Refusal A 36"
2
96 inches
40 inches
The SHWL may vary within the proposed site due to changes in 'subsurface conditions and elevation.
Several borings were terminated due to auger refusal between 12 and 36 inches below the existing grade
elevation (gravel backfill). Please see the attached drawing illustrated the area of refusal.
If you have any questions regarding this report, please contact us at [phone].
Respectfiilly,
ECS CAROLINAS, LLP
K. B� Wall
Staff Geologist
Attachments: Site Diagram/SHWL sheet
I�Vb
Walid . Sobh, P. E.
Principal Engineer
7211 Ogden Business Park • Suite 201 • Wilmington, NC 28411 • [phone] • Fax [phone] • www.ecslimited.com
Asheville, NC • Charlotte, NC - Greensboro, NC • Greenville, SC • Raleigh, NC - Swansboro, NCWilmington, NC
• testing services only

EXISTING
PROPERTY
LINE
EXISTING
BUILDING /
A Of
2
EXISTING GRAVEL
DRIVEWAY
—EXISTING
BILLBOARD
EXISTING WASTEWATER
PUMP STATON AND
APPURTENANCES
C'1 tA1a1,E1l L'r:l,rt
nrt, n.n•ux�:ri
w
o
SITE MAP
T,
PS 35 EXPANSION 91�a lsle 2B°08
PROPOSED BORE LOCATION Fe B149135013
vMw.laepe,mm
"ftatllltllEngineering, Pr m ��
wo.+.x.,v,rn rrn �.ea�n ron wxarnucml
SHWL LOCATIONS
Pump Station 35
Wilmington, NC
ECS Project No. 22-14224
July 1, 2008
ICBW

Season High Water Level Estimation
Pump station 35
Wilmington, North Carolina
ECS Project No. 22.14224
July 1, 2008
Location Depth Soil Description
1 0-12" Grey gravely SAND
12"-24" Tan/grey silty CLAY
24"-36" Brown silty SAND w/heavy organic debris
Auger refusal @ 36"
The Seasonal High Water Table nor the Water Table were encountered due to the
backfill conditions and auger refusal.
Location Depth
Soil Description
2 0-6"
Grey silty SAND
6"-12"
Orange CLAY w/ sand
12"-40"
Tan/grey fine SAND
40"-90"
Orange/tan sandy CLAY
90"-100"
Greenish/grey fine SAND
Seasonal High Water Table was estimated to be at 40 inches below the existing
grade elevation.
Ground water was encountered at 96 inches below the existing grade elevation.

Hydrograph Summary Report
Hyd.
No.
Hydrograph
type
(origin)
Peak
flow
(cfs)
Time
interval
(min)
Time to
peak
(min)
Volume
(cuft)
Inflow
hyd(s)
Maximum
elevation
(ft)
Maximum
storage
(cuft)
Hydrograph
description
1
Rational
0.283
1
5
85
--
--
--
PS 35 Pre Construction
2
Rational
0.583
1
5
175
—
--
--
PS 35 Post Construction
PS 35 Expansion Sand Filter.gpw
Return Period: 1 Year
Tuesday, Aug 12 2008, 12:02 PM
Hydraflow Hydrographs by Intelisolve

2
Hydrograph Plot
HydraBow Hydrographs by Intelisolve
Tuesday, Aug 12 2008, 12:2 PM
Hyd. No. 1
PS 35 Pre Construction
Hydrograph type = Rational
Peak discharge
= 0.283 cfs
Storm frequency = 1 yrs
Time interval
= 1 min
Drainage area = 0.130 ac
Runoff coeff.
= 0.35
Intensity = 6.230 in/hr
Tc by User
= 5.00 min
OF Curve = Wilmington.IDF
Asc/Rec limb fact
= 1/1
Q (cfs)
0.50
0.45
0.40
0.35
0.30
0.25 -
0.20
0.15
0.10 -
0.05
0 00
PS 35 Pre Construction
Hyd. No. 1 -- 1 Yr
Hydrograph Volume = 85 cuR
Q (cfs)
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
000
0.0 0.1 0.2
Time (hrs)
— Hyd No. 1

3
Hydrograph Plot
Hydraflow Hydrographs by Intelisolve
Tuesday, Aug 12 2008, 12:2 PM
Hyd. No. 2
PS 35 Post Construction
Hydrograph type
= Rational
Peak discharge
= 0.583 cfs
Storm frequency
= 1 yrs
Time interval
= 1 min
Drainage area
= 0.130 ac
Runoff coeff.
= 0.72
Intensity
= 6.230 in/hr
Tc by User
= 5.00 min
OF Curve
= Wilmington.IDF
Asc/Rec limb fact
= 1/1
Q (cfs)
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
0.0
— Hyd No. 2
PS 35 Post Construction
Hyd. No. 2 -- 1 Yr
0.1
Hydrograph Volume = 175 cuff
Q (cfs)
1.00
M
Rom
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
0.2
Time (hrs)

4
Hydrograph Summary Report
Hyd.
No.
Hydrograph
type
(origin)
Peak
flow
(cfs)
Time
interval
(min)
Time to
peak
(min)
Volume
(cult)
Inflow
hyd(s)
Maximum
elevation
(it)
Maximum
storage
(cuft)
Hydrograph
description
1
Rational
0.581
1
5
174
---
----
----
PS 35 Pre Construction
2
Rational
1.196
1
5
359
---
----
------
PS 35 Post Construction
PS 35 Expansion Sand Filter.gpw
Return Period: 100 Year
Tuesday, Aug 12 2008, 12:02 PM
Hydraflow Hydrographs by Intelisolve

5
Hydrograph Plot
Hydraflow Hydrographs by Intelisolve
Tuesday, Aug 12 2008, 12:2 PM
Hyd. No. 1
PS 35 Pre Construction
Hydrograph type
= Rational
Peak discharge
= 0.581 cfs
Storm frequency
= 100 yrs
Time interval
= 1 min
Drainage area
= 0.130 ac
Runoff coeff.
= 0.35
Intensity
= 12.780 in/hr
Tc by User
= 5.00 min
IDF Curve
= Wilmington.IDF
Asc/Rec limb fact
= 1/1
PS 35 Pre Construction
Q (cfs)
Hyd. No. 1 -- 100 Yr
1.00 -
0.90 -
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00 -�
0.0
— Hyd No. 1
0.1
Hydrograph Volume = 174 cuft
Q (cfs)
1.00
0.90
0.70
0.60
0.50
0.40
0.30
0.20
0.10
� 0.00
0.2
Time (hrs)

Hydrograph Plot
HydraBow Hydrographs by Intelisolve
Tuesday, Aug 12 2008, 12:2 PM
Hyd. No. 2
PS 35 Post Construction
Hydrograph type
= Rational
Peak discharge
= 1.196 cfs
Storm frequency
= 100 yrs
Time interval
= 1 min
Drainage area
= 0.130 ac
Runoff coeff.
= 0.72
Intensity
= 12.780 in/hr
Tc by User
= 5.00 min
OF Curve
= Wilmington.IDF
Asc/Rec limb fact
= 1/1
Q (cfs)
2.00
1.00
0.00
0.0
— Hyd No. 2
PS 35 Post Construction
Hyd. No. 2 -- 100 Yr
0.1
Hydrograph Volume = 359 cult
Q (cfs)
2.00
1.00
i
�L 0.00
0.2
Time (hrs)

Pump Station 35 Expansion
Sand Filter Design Calculations
for
Cape Fear Public Utility Authority
DNneea McDA e1 � _: Delaware Sentl.Fi@qr SFt*, - r,
i� �.
Reie1N`n Sheem Bradley Creak i i ' L' n I Benin Claiilficelbn SCHOw ✓.Wetero i.. L n
Roo0lne of 1994 Nag 1668 sq it 9355
Gen 448 sq it 870
Fuel 316 sq it 112
Roo0lne of 1959 bldo 1113 art it
Onsite Acres • 0.130 Acres
Oneile Impervious Area = 0.081 Acres
Onslle Area • 0.000 Acres
Oneite Impervious Area = 0,000 Acres
Total Area = 0.130 Arles
Total Impervious Area 0,081 Acres
Percent Impervious = Impervious drainage area (acres)/Draina9e Area (arores) = 62.6 %
A Deterrnlne Volume to be controlled from 1.5 Inch storm ` ;' . �� - +%'+%': 1, `
Rv = ninon coefficient - storm mnan (inches) /storm rainfall (inches)
I - Percent impervious • impervious portion of the storage area (acres) I Drainage area (acres)
Rv = 0.05- 0,009(1)
Rv=0,05. 0.009' 62.6 - 0,613 (in/In)
Volume to be controlled from the design storm event per Schueler (1987) "Simple Method"
Design rainfall = 1.5 (in)
Rv • 0.613 (in I In)
Drainage Area 0 (acres)
Volume required (cf) = rainfall (in) x Rv (in / in) x Drainage area (acre) x 1112 (feet / inches) x 43500 (at / acre)
Vnq = 1.5 0.613 0.130 0,0833 43560 = 434 cult
Delaware Sand filler storage volume above sand surface
chamber width • 8.00it Includes both forebay and filter chambers
chamber length • 36.0 IT
chamber depth above send surface • 1.58 :1
Cross -sectional Area (A) - depth Width = 12.64 sqf
Volume proposed • 126 at 36.0 • = 455 cult
Volume proposed • 455 > urea = 434 cult
OK -basin volume sufficient for design event
8 Determine Water Quality Volume
WOV (wit) = Water Quality Volume using Sculer's Simple Method
WOV • (RJi)'(Aa(ach sVI)-(43,S60sgf 1I acro)'(1.51nchRaiNl )-til2)
Rv = 0,613
Ad • Drainage area to sandfilter = 0,130 acres
WQV• Del 0.13 43560 0083 1 289,47 cull
WQVadl=0.75WQV = 217.10 cult
C Establish Maximum Head In sand Fllter, and determine surface area of Sedimentation Basin and Sandfilter'
hs • average head on the send filter = 1 it
lh a = max. head on sand filter (2-8) = 2 it
h„ore., _ (WOVa,)/(' .-AI)
A, • Surface area of the sed basin
A,- Surface area of the sand fitter
Therfore the minimum As+Af = 108.55 soft
Minimum Sedimentation Basin Surface Area based on Camp Hazen Equation
(assumes Trap Efficiency of the chamber to be 0.9 limitless) and me setting velocity to be 0.0004 fuel
A. = 240'R As
A.= 240 0,013 0.130 19.14 sglt
Minimum Sandfilter bad by Darcys Law
A,= (WQV-dr)/lk'Plh,'dr))
dr = depth of the sandfilter bed = 3.00 lt
k=coetof permeability for the sand filter bed = 3.50 Nday per NCDENR Slounwater BMP Manual (July 2007)
1- time required to drain the WOV through 1 S6 day per NCDENR Stomrwater BMP Manual (July 2007)
.no filter
At _ = 37.37 stiff
Prepared by:
Highfill Infrastructure Engineering, PC
Page / of 2

Pump Station 35 Expansion
Sand Filter Design Calculations
for
Cape Fear Public Utility Authority
D Ensure Water Quality Volume Is eontalned
Surface area of the sediment basin plus combined with the sand filter multiplied by the max filter depth must be greater than the water quality volume
As designed (ANAs)'hmax > WDV
113.01 289.47
No - min surface area calculated will not contain WOV
w/ and storage 1.5 inch storage volume > WDV
434 289.47
OK - required 1.5 Inch storage volume will contain WOV
Provided Actual Volume provided > WOV
455 289.47
OK - provided volume will contain WOV
E Underdreln Design
Determine flow rate through soil media and apply a safety factor of 10 (this will be the underdrain design flow)
Maximum filter infiltration rate =
4.8 iNhr Based on non -woven geotextile specification
Convened infiltration rate -
0.0067 file
Filter surface area =
144 sgfl
Max flowvale through fitter=
0,96 cuNs
Flow rate through filter with Safety factor of 10 -
9,60 cufl/s
D=((16'O'n)I(S"0.5))"(3/8) =
7.80 inches Using 0.5%slope and n=0.11
Minimum number of 4" diameter underdmin pipes required =
2
Minimum number of 6'tliameter underdrain pipes required =
2 Install 3-6' underdrain pipes
F Outlet Design
Determine minimum outlet pipe diameter based using peak flow of the max flow rate through the filter and overflow
Peak Flow through filler media =
9.80 tuft based on Underdrain Design
Weir Length =
4.00 fl
Max weir height =
0.42 It
Peak Flow through filter overflow =
3.27 cufUs based on the weir equation O = C'L'H"(3/2)
Total flow =
12.81 cufVs
Based on mornings equiation the minimum diameter based on a known flow - (2.1589"n-(O/S"(If2)p(3/8)
n-
00010 based on PVC outel pipe
S =
0.01 1%slope as indicated on plans
D =
0.62 a
=
7 In. Minimum pipe diameter to convey full lbw at given slope
Prepared by:
Highfill Infrastructure Engineering, PC
Page 2 of 2

Permit Number:
(to be provided by DWD)
w
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form must be filled out on line, printed and submitted with all of the required information.
Make sure to also fill out and submit the Required Items Checklist (Section III) and the 18M Agreement (Section IV)
Project name
Pump Station 351
Contact name
Paul R. Shivers, F
Phone number
'[phone]
Date
October 10, 2008
Drainage area number
It
0(2�py�waTr§g� c
Oliii�-c
If.rDESIGN,INFORMATION "i(iK
Site Characteristics
F
Drainage area (AD)
5.69 03 ItZ
Impervious area
1 3,545.00:It'
% Impervious 0A)
62.3% %
Design rainfall depth (Rb)
tin
Peak Flow Calculations
1-yr, 24-hr runoff depth
3.80 tin
1-yr, 24-hr intensity
1 0.16 linthr
Pre -development 1-yr, 24-hr runoff
0.28 1ft'/sec
Post -development 1-yr, 24-hr runoff
0.58 ft'/sec
Pre/Post 1-yr, 24-hr peak control
0.30 ft'/sec
Storage Volume
Design volume (WQV) 289Wft'
Adjusted water quality volume (WQVAe) 217.10 it'
Volume contained in the sedimentation basin and on top of the sand filter 455.04
Maximum head on the sedimentation basin and sand filter (hmui,, r) I 1.58:ft
Average head on the sedimentation basin and sand filler (hA) 0.79, ft
Runoff Coefficient (Rv) 0.61 (unitless)
Type of Sand Filter
Open sand filter? N I Y or N
If this is an open sand filter: The clearance between the bottom of the sand It
filter and the SHWT (dSHWT) 1
Closed/pre-cast sand filter? Y 1 Y or N
If this is a closed sand filter: The clearance between the bottom of the sand I 2.50 It
filter and the SHWT (dsH )
If this is a closed, underground closed sand filter: The clearance between
the surface of the sand filler and the bottom of the roof of the underground 2.00 ft
structure (dsr,a)
OK
Insufficient depth.
OK
Form SW401-Sand Filter-Rev.3 Parts I and II. Project Design Summary, Page 1 of 3

Sedimentation Basin
Permit Number:
(to be pmvided by DWQ)
Surface area of sedimentation basin (As)
Sand Filter
Surface area of sand filter (AF)
OK. Meets minimum, but may need to be increased to
144.00 ft2 contain the required volume if error under Storage
Volume section.
Depth of the sand media filter bed (dF)
Coefficient of permeability for the sand filter (k)
Time to drain the sand filter (t)
Time to drain the sand filter (t)
Additional Information
Does volume in excess of the design volume bypass the sand filter?
Is an off-line now -splitting device used?
Does volume in excess of the design volume flow evenly distributed through a
vegetated filter?
What is the length of the vegetated filter?
Does the design use a level spreader to evenly distribute flow?
Is the BMP located at least 30ft from surface waters (50ft if SA waters)?
Is the BMP located at least 100ft from water supply wells?
Are the vegetated side slopes equal to or less than 3:1
Is the BMP located in a recorded drainage easement with a recorded access
easement to a public Right of Way (ROW)?
What is the width of the sedimentation chamberflorebay (Ws,d)?
What is the depth of sand over the outlet pipe?
Sedimentation
Chamber
(orb v,
Floss
­11110.
Figure 1: Open Sand Filter
Saud Filter
Chamber
Outlet Pipe
ar'+;
2* i
i
i
i
III-Sihr Soil: Sensoumbl):: High lVater Table
i
...............................ne4:
OK. Meets minimum, but may need to be increased to
contain the required volume if error under Storage
Volume section.
It
(ft/day)
OK. Submit drainage calculations.
1,67 days
YorN OK
Y or N Insufficient Flow splitter.
YorN OK
YorN Show how flow is evenly distributed.
YorN OK
YorN OK
Y or N Insufficient vegetated side slopes.
YorN OK
dF�Pe :CIF
(Isawr
OK
OK
Form SW401-Sand Filter-Rev.3
Parts I and II. Project Design Summary, Page 2 of 3

Figure 2: Closed Sand Filter
Permit Number:
(to be provided by DWQ)
Flow
WIN!;
Concrete (or other
sh uchu'ul material)
hi -Sibs Soil /
Semounbly Him -A
Water Table
Water
Collected
SaGrututatiou C7samber (Fdreha}') Smul Filter Chamber
(Heavy sedimenU, (Tapped Solids)
Orgsrics, Debris)
Form SW401-Sand Filter-Rev.3 Parts I and II. Project Design Summary, Page 3 of 3

HIGHFILL INFRASTRUCTURE ENGINEERING, PC
SAND FILTER BOUYANCY CHECK
RO'
Pum Station 35 Expansion
O
rPuFFeablic Utility Authority
BY:
PRS Checked: JRC
DATE:
2/13/2009
Note: Dimensions used for calculations from Pump Station 35 Expansion drawing C-1.2
Volume of Concrete
Bouyancy:
Tank Base
Base Width A
42.17 FT
(9" extension)
Tank Volume Displaced:
2536.96 CUFT
Base Width B
10.92 FT
(9" extension)
Assume completely submerged
Base Thickness
1.00 FT
Base Volume
460.50 CUFT
VOL OF WATER DISPLACED:
2536.96 CUFT
Tank Walls
UNIT WT CONC.
62.4 #/CUFT
Tank (OD) Length
40.67 FT
BOUYANT FORCE:
158306 #
Tank (OD) Width B
9.42 FT
Tank Wall Thickness
0.42 FT
Wall Height
5.42 FT
Tank Wall Volume
278.17 CUFT
Tank Lid
Tank (OD) Length
39.83 FT
Tank (OD) Width
8.58 FT
Tank Lid Thickness
0.42 FT
3 Small Hatches
6.75 SQFT
(1.5'xl.5')
3 Large Hatches
18.00 SQFT
(4'xl.5')
7 Grates
56.00 SQFT
(2'x4')
Lid Volume
109.62 CUFT
Tank Inner Wall,
Wall Length
39.83 FT
Wall Height
5.00 FT
FEB 1
3 2009
14 Small openings
4.67 SQFT
(1.33'x0.25')
1 Large opening
2.50 SOFT
(3'x0.83')
Wall Thickness
0.58 FT
BY:
Interior wall volume
111.35CUFT
TOTAL VOL OF CONC: 959.6 CF
UNIT WT CONC. 150 #/CF
CONC. WEIGHT: 143945 #
Add Soil Weight (if extended base)
Tank OD area: 383.11 SOFT
EXTENDED BASE AREA: 460.50 SOFT
DEPTH OF BURY: 5.42 FT
VOL OF SOIL ANCHOR: 419.43 CF (NO REFRACTION ANGLE = S.F.)
UNIT WT SOIL: 65 #/CF (SATURATED)
SOIL WEIGHT: 27263 #
Total Weight = 171207 # Total Bouyancy = 158306 #
Note: Total weight does not include castings, hatches, grates or outlet chamber baffle walls
SF: 1.00
Check: ,?OK
If ADD ANCHOR, Volume of Conc Req'd =-1227.4 CF
0
0
R0
00,
SEAL -
030236
rc�z�l�leq
R. SN

HIGHFILL INFRASTRUCTURE ENGINEERING, PC
SAND FILTER BOUYANCY CHECK
PRO':
Pum Station 35 Expansion
FOR:
Ca a Fear Public Utility Authority
BY:
PRS Checked: JRC
DATE:
2/1312009
Note: Dimensions used for calculations from Pump Station 35 Expansion drawing C-1.2
Volume of Concrete
Bouyancy:
Tank Base
Base Width A
42.17 FT
(9" extension)
Tank Volume Displaced:
2536.96 CUFT
Base Width B
10.92 FT
(9" extension)
Assume completely submerged
Base Thickness
1.00 FT
Base Volume
460.50 CUFT
VOL OF WATER DISPLACED:
2536.96 CUFT
Tank Walls
UNIT WT CONC.
62.4 #/CUFT
Tank (OD) Length
40.67 FT
BOUYANT FORCE:
158306 #
Tank (OD) Width B
9.42 FT
Tank Wall Thickness
0.42 FT
Wall Height
5.42 FT
Tank Wall Volume
278.17 CUFT
Tank Lid
Tank(OD)Length
39.83 FT
Tank (OD) Width
8.58 FT
Tank Lid Thickness
0.42 FT
3 Small Hatches
6,75 SOFT
(1.5'x1.5')
3 Large Hatches
18.00 SOFT
(4'xl.5')
7 Grates
56.00 SOFT
(2'x4')
Lid Volume
109.62 CUFT
Tank Inner Wall
Wall Length
39.83 FT
Wall Height
5.00 FT
14 Small openings
4.67 SOFT
(1.33'x0.26)
1 Large opening
2.50 SOFT
(3'x0.83')
Wall Thickness
0.58 FT
Interior wall volume
111.35CUFT
TOTAL VOL OF CONC: 959.6 CF
UNIT WT CONIC. 150 #/CF
CONC. WEIGHT: 143945 #
Add Soil Weight (if extended base)
Tank OD area:
383.11 SOFT
EXTENDED BASE AREA:
460.50 SOFT
DEPTH OF BURY:
5.42 FT
VOL OF SOIL ANCHOR:
419.43 CF (NO REFRACTION ANGLE = S.F.)
UNIT WT SOIL:
65 #/CF (SATURATED)
SOIL WEIGHT:
27263 #
Total Weight = 171207 # Total Bouyancy = 158306 #
Note: Total weight does not include castings, hatches, grates or outlet chamber baffle walls
SF: 1.00
Check:';:r:.s;. OK
If ADD ANCHOR, Volume of Conc Req'd =-1227.4 CF
„ r,grorM111rrrgr
�N a�'p''••,
rolow
SEAL
030236
Z�f)loq -

Beverly Eaves Perdue, Governor
i
Dee freeman, Secretary
rNorth Carolina Department of Environment and Natural Resources
1
'( Coleco 11. Sullins, Director
Division of Water Quality
January 15, 2009
Matthew W. Jordan, CEO
Cape Fear Utility Authority
235 Government Center Drive
Wilmington, NC 28403
Subject: Request for Additional Information
Stormwater Project No. SW8 081222
Pump Station 35 Expansion
New Hanover County
Dear Mr. Jordan:
The Wilmington Regional Office received a NPDES Phase II Post Construction Permit
Application for Pump Station 35 Expansion on November 18, 2008. A preliminary
review of that information has determined that the application is not complete. The
following information is needed to continue the stormwater review:
1. The overflow/bypass weir must discharge to a 50' vegetative filter.
2. Please provide buoyancy calculations for the sand filter. Remember a PE
seal is required for all engineering calculations.
3. Please show the seasonal high water level on the sand filter section view.
4. Show and spec out water stops at all joints below the seasonal high water
level.
The sand filter supplemental form calls out 2.42' of sand depth but section
view A -A on sheet C1.2 shows a dimension of 1'-7" for the sand depth, please
correct.
Please note that this request for additional information is in response to a preliminary
review. The requested information should be received in this Office prior to February
16, 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.
If you need additional time to submit the information, please mail, email or fax your
request for a time extension to the Division at the address and fax number at the bottom
of this letter. The request must indicate the date by which you expect to submit the
required information. The Division is allowed 90 days from the receipt of a completed
application to issue the permit.
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.
Mailing Address Phone [phone] Location N,pRjthCarolina
1617 Mail Service Center Fax [phone] N. Salisbury St. atut*R11(/
Raleigh, NC 27699-1617 Raleigh, NC 27604
Internet: wwwmcwateraualitv.ore Customer Service 1-877-623-6748
An Equal OpportunitylAff rmative Action Employer — 50% Recycled110% Post Consumer Paper

Matthew W. Jordan, CEO
January 15, 2009
Stormwater Application No. SW8081222
Please reference the State assigned project number on all correspondence. Any
original documents that need to be revised have been sent to the engineer or agent. All
original documents must be returned or new originals must be provided. Copies are not
acceptable. If you have any questions concerning this matter please feel free to call me
at [phone] or email me at [e-mail].
Sincerely,
c' 3 �c•
Chris Baker
Environmental Engineer II
GDS/csb: S:\WQS\STORMWATER\ADDINFO\2008\081222.jan09
CC: Paul Shivers, P.E., Highfill Infrastructure Engineering, PC
Chris Baker
Page 2 of 2

State Stonnwater (Pump Station 35 Expansion)
Subject: State Stormwater (Pump Station 35 Expansion)
From: Chris Baker <[e-mail]>
Date: I'ri, 05 Dee 2008 14:10:02 -0500
To: [e-mail]
Completeness review, additional information requested for the above referenced
project.
1) Wetlands are not delineated on the plans, please correct.
2) Design rainfall depth (R D ) left blank on the supplemental form, please correct.
Please make these corrections and resubmit by December 8, 2008, or the application
will be returned as incomplete. \1A
Feel free to call if you have any questions,
chris
�'2
loft
12/5/2008 2:13 PM

Project -name 4t�� 3 S [ Wig —Review Date C�7£C7r�`
Checklist for Completeness Review of Stormwater Applications 0 Q- `p �✓
Each application for which a "Completeness Review" is needed will have this checklist printed on
yellow paper to distinguish it from other applications to be reviewed. (�
❑✓ Read the narrative and application to determine the type of project, i.e., residential vs.
commercial, subdivision vs. single lot, high density, low density, offsite, redevelopment, and
determine what documentation needs to be provided. ()(
Make sure that all required forms, supplements, O&M's, deed restrictions, signature AA
authorizations, etc., are included and contain original signatures. 1
© If low density, make sure the BUA calculations include any common areas, clubhouse areas,
I / etc., and do a quick math check for addition errors. v1
Do a quick consistency check of the numbers used in the calculations vs. the numbers n
reported on the application. For multiple BMP's pick one or two to check. U
Ownership issues? Make sure the correct person has signed the application. If it's a
corporation or LLC, print off the NCSOS information sheet and latest annual report. Make
sure the person who signed is listed on the annual report with his/her correct title, or make
sure a signature authorization letter has been provided.
Make sure 2 sets of plans have been submitted, and that they include grading, layout (with
dimensions for all proposed BUA) and details.
❑ Are the Wetlands delineated on the plans? Y N By whom?
�J If the project drains to SA waters, make sure a USGS topo map with the site, the receiving
waters and the''/z mile radius clearly shown to scale, is provided.
❑✓ /For high density projects, make sure the correct design storm is used, based on the receiving
stream classification and the projects proximity to SA waters.
0 Make sure appropriate details are provided such as roads, cul-de-sacs, curbing, sidewalk,
BMP's, level spreaders, vegetated filter strips, curb outlet swales, etc. Two of the most
common errors are that sidewalk is indicated on the plans, but not included in the BUA calcs
or shown with the road detail, and the road width used in the BUA calculations is less than
that shown on the road detail.
IVI Are there any issues within the 575 ft ORW AEC?
If high density, make sure the plans and calculations are signed, sealed and dated.
If the project involves the subdivision of property or has outparcels, make sure a copy of the
Proposed Declaration of Covenants and Restrictions in legal format with all required
/statements is provided, or that the appropriate standard deed restriction template, signed and
notarized, is provided.
0 Make sure that a Soils Report for all projects is provided, to determine if the required
separation to the SHWT is provided.
For multiple HD systems & curb outlet swales, make sure a drainage area map is provided.
If the application is substantially incomplete, give the entire file with the check to admin (Jo
Casmer) to be returned to the applicant. Jo will keep copies of the return letters, application &
check.
❑ If the application lacks only a few minor items such that it can be made complete within 24
hours, you can email the consultant and request the information. Hold onto the package for
24 hours. If the information isn't received within 24 hours, give the application to Jo to return.
For Offsite projects:
The Designer's Certification for the offsite system has been submitted.
The deed restrictions have been recorded and a copy submitted.
The offsite system is in compliance with its permit.
Make sure the lot size hasn't changed from what was approved under the Master Plan and
that the correct lot number is referenced on the supplement form.
For Infiltration projects:
Soils report to determine SHWT, soil type and expected infiltration rate is provided.
Has Vincent conducted the site investigation? If Yes, date?
For infiltration projects, the maximum 2 acre inches of volume in any single system has not
been exceeded.
For Wet Ponds projects:
❑ Permanent pool to be located no lower than 6" below the estimated SHWT. Otherwise, the
incoming groundwater must be quantified and evaluated; the storage volume must be
verified; and the outlet needs to be evaluated for free drainage to the receiving waters under
SHWT conditions.
S:\WQS\STORMWATER\FORMS\COMPLETENESS REVIEW

1 ,.,..
DEC 0 8 2008
Infrastructure Engineering, P
To: Mr. Chris er
NCDENR-D
127 Cardinal Drive x e
Wilmington, NC 28405
Date. December 8, 2008
From: Paul R. Shivers, P.E.
Subject: Pump Station 35 Expansion
TRANSMITTAL
3804 Park Avenue, Unit A
Wilmington, North Carolina 28403
Tel [phone] Fax [phone]
HIE Proj. No.: KHA0801
WE ARE SENDING YOU:
® Attached ❑ Shop Drawings ❑ Samples
COPIES DATE NO. DESCRIPTION
2 Sand Filter Supplement - revised
2 Sheet C-1.2 - revised
COMMENTS:
Mr. Baker:
In response to your additional information request received by email on Friday (12/5/08) we have
enclosed the following:
1. Two (2) copies of the Sand Filter Supplement indicating the Design Rainfall Depth of 1.5".
2. Two (2) copies of sheet C-1.2 clarifying the wetland delineation.
Please give me a call if you have any questions or further requests for additional information
Thank you,
14 -/ .J4�'
renewing aged infrastructure —designing new infrastructure to endure the ages
r

Infrastructure Engineering, P.C.
November 17, 2008
Ms. Rhonda Hall
NCDENR-DWQ
127 Cardinal Drive Extension
Wiltmington,NC 28405
Re: Pump Station 35 Expansion
Stormwater Management Permit Application Package
HIEPC Project No.: KI IA0801
Dear Ms. Hall:
3804 Park Avenue, Unit A
Wilmington, North Carolina 28403
Tel [phone] Fax [phone]
1ppB -4t
We have been tasked by the Cape Fear Public Utility Authority with the Pump Station #35 Expansion
project located at 6337 Oleander Dr. at Bradley Creek. This project includes the upgrade of 2 pumps with
V FDs and related components within the existing pump station. The upgrade in pumps requires an
upgrade to the generator and generator fuel tank for auxiliary power. The existing generator building and
fuel tank will be removed and a new larger generator and generator fuel tank will be installed as indicated
on the drawings.
Based on conversations with you and Linda Lewis in June of this year, a determination was made that we
needed to submit a high density permit for the addition of the generator and generator fuel tank. You also
explained that any impervious surface constructed after 1988 within the drainage basin would require
treatment under the current State Stormwater rules. New Hanover County tax records indicated that the
only impervious surface on the site built after 1988 was the building in the southwest corner of the site.
In order to allow for potential use of the area containing the two buildings on the south side of the lot, the
proposed sand filter was designed to include both buildings. The gravel parking lot is existing and was in
place when the Pump Station was originally constructed in the early 1980s. Therefore, this permit
application is for the treatment of the two buildings on the south side of the property, the new generator,
the new generator fuel tank and the surrounding area designated drainage area 1 on the drawings
provided.
Enclosed for your review are the following for the referenced project:
• Original and one (1) copy of the Stormwater Management Narrative and Calculations
o Two (2) copies of the USGS Vicinity Map and property Information
o Two (2) copies of the Soils Report
o Original and one (I ) copy of the Deed Restrictions and Protective Covenants Form
o Two (2) copies of the Hydraflow Hydrographs
o Two (2) copies of Detailed Sand Filter Calculations
o Original and one (1) copy of the Stormwater Management Permit Application
o Original and one (1) copy of the Sand Filter Supplement & Operation and Maintenance
Agreement
Two (2) copies of the completed Watershed Classification Request Form
Two (2) copies of the project drawings: Cover, C-0.0, C-1.0, C-1.2, C-3.1, MD- 1.1, MD-
1.2 (primary stormwater drawing is C-1.2, other drawings included for additional
information and detail clarification.)
renewing aged infrastructure ... designing new infrastructure to endure the ages

Ms. Rhonda Hall
November 17, 2008
Page 2
• Check in the amount of $505 made out to NCDENR
If you have questions, need clarification or require additional information, please contact me. Thank you
for your consideration of this application.
Sincerely,
I IlGI IFILL INFRAS"rRUCTURE ENGINEERING, P.C.
?�
Paul R. Shivers, P.E.
Project Manager
Enclosures
cc: Chris Bowling, Cape Fear Public Utility Authority

Permit NG_5k i:�'o
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
WATER QUALITY CLASSIFICATION REQUEST FORM
This form may be photocopied for use as an original.
PROJECT INFORMATION
In order to determine the receiving stream for a project in a coastal county or whether a State Stormwater
Management Permit will be required for a project in a non -coastal county, the classification of the closest
downslope surface waters (the surface waters that any sheet flow or overflow from the project would flow toward)
must be determined. Please complete Sections I and II below. DWQ Staff will determine the receiving stream
classification, complete Section III, and return the completed form to you.
1. ProjeclName: Pump Station #35 Expansion County: New Hanover
2.. Contact Person: Paul R. Shivers P.E.
3. Mailing Address: 3804 Park Ave., Unit A
4. City Wilmington State NC Zip 28451 Phone No. 910-313-1516
5. Name of closest downslope surface waters: Bradley Creek
6. Signature of contact person: Date:
7. Is a Sedimentation Erosion Control Plan or a CAMA Major Permit required? OYES ❑NO
If. REQUIRED ITEMS
An 8.5" x 11"copy of the appropriate portion of a USGS quad sheet showing the projects property
boundaries, receiving stream, major roads or State Roads numbers, and nearest town or city must be
attached.
Mail the entire package to: NCDENR Division of Water Quality
Surface Water Protection Section - Stormwater
at the Appropriate Contact Address (see the following page)
III. CLASSIFICATION REQUEST (To be completed by Regional Officer personnel)
1. Name of surface waters `� le- e' r`
2. River Basin: o+ t' r'i4 Index No/
3. Classification (as established by the EMC):
4. Proposed Classification, if applicable:
5. Stale Stormwater Management Permit requir ? Y NO
6. Signature of Regional Office personnel: Date_,
cc: DWQ - Regional Office
Consultant J vn =y
Building Inspector -
1•
Central Files f 11)j.. 2 y Zfl!1F
Swu-111-060606 Page 1 of 2

WINSTON-SALEM RALEIGH WASHINGTON
seam 9r01�3 10LHpf1NY G� � � � C
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MOORESVILLE ] '
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FAYETTEVILLE
co,mgm
NORTH CAROLINA DIVISION OF WATER QUALITY UNSNtcx
WILMINGTON
E
SURFACE WATER PROTECTION SECTION
Central and Regional Office Contact Information
For State Stormwater Permits
ASHEVILLE REGIONAL OFFICE
FAYETTEVILLE REGIONAL OFFICE
OORESVILLE REGIONAL OFFICE
2090 US Highway 70
225 Green Street
610 East Center Avenue/Suite 301
Swannanoa, NC 28778
Systel Building Suite 714
Mooresville, NC 28115
[phone]
Fayetteville, NC 28301-5043
[phone]
HOW & ORW Projects in Counties Above
[phone]
HOW & ORW Projects in Counties Above
HOW & ORW Projects in Counties Above
ALEIGH REGIONAL OFFICE
, ASHINGTON REGIONAL OFFIC
WILMINGTON REGIONAL OFFIC
3800 Barrett Drive
943 Washington Square Mall
127 Cardinal Drive Extension
Raleigh, NC 27609
Washington, NC 27889
Wilmington, NC 28405-2845
[phone]
[phone]
[phone]
HOW & ORW Projects in Counties Above
Coastal Stormwater, HOW & ORW Projects in Counties Above
Coastal Stormwater, HOW & ORW Projects in Counties Above
NSTON-SALEM REGIONAL OFFICE
ENTRAL OFFIC
1617 Mail Service Center
/ - 'To preserve, protect
585 Waughtown Street
Winston-Salem, NC 27107
Raleigh, NC 27699-1617
and enhwce
[phone]
[phone]
!North Carolina's water.:,,,
HOW & ORW Projects in Counties Above
Phase 2 Post -Construction Projects not covered by local
government or 20 coastal counties
SWU-111-040108 Page 2 of 2

TRANSMITTAL
3804 Park Avenue, Unit A
Infrastructure Engineering, P.C. Wilmington, North Carolina 28403
Tel[phone] Fax [phone]
To: NCDENR Division of Water Quality Copies:
Surface Water Protection Section
Date: 7/29/08
From: Paul R. Shivers HIE Proj. No.: KHAO801
Subject: Pump Station 35 Expansion
JUL 2 9 2008
WE ARE SENDING YOU:
® Attached ❑ Shop Drawings ❑ Samples
COPIES
DATE
NO.
DESCRIPTION
1
7 29 08
Water Quality Classification Request Form
1
USGS Site Location Ma
COMMENTS:
To Whom It May Concern:
Pump Station 35 Expansion is part of the Northeast Interceptor project that has been the ongoing effort
by the Cape Fear Public Utility Authority to improve wastewater infrastructure and reduce potential
impacts due to sanitary sewer overflows. Kimley-Horn is currently designing the force main from Pump
Station 35 to the Northside WWTP and we are designing the upgrade of the pump station. Due to the
recent determination of the need for a combined CAMA General and an Erostion Control Plan, we
determined we would need a State Stormwater Permit. Apparently Kimley-Horn will be submitting the
force main portion of this project under the General Permit for linear utility projects. We were informed
that the pump station site would require a separate High Density Stormwater permit.
Due to time constraints and the need to get this upgrade of PS 35 designed and in service, anything that
can be done to help us expedite this process will be greatly appreciated by the Cape Fear Public Utility
Authority who is and will be the owner.
If you have any questions or concerns, please call me at [phone].
Thanks,
renewing aged infrastructure ... designing new infrastructure to endure the ages

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