SW8070912_HISTORICAL FILE_20071018 (2)

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 o7 O q 12
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
WHISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
2007 1.0 19
YYYYMMDD

�oF W A'Fq Michael F. Easley, Governor
�0 (r William G. Ross Jr., Secretary
0 r North Carolina Department of Environment and Natural Resources
J �
p Y Coleen H. Sullins Director
Division of Water Quality
October 18, 2007
John A. Atkinson, Manager
St. James Plantation, LLC
PO Box 10879
Southport, NC 28461
Subject: Stormwater Permit No. SW8 070912
Harbor Walk Condominiums
High Density Commercial Project
Brunswick County
Dear Mr. Atkinson:
The Wilmington Regional Office received a complete Stormwater Management Permit
Application for Harbor Walk Condominiums on October 18, 2007. Staff review of the plans and
specifications has determined that the project, as proposed, will comply with the Stormwater
Regulations set forth in Title 15A NCAC 2H.1000. We are forwarding Permit No. SW8
070912., dated October 18, 2007, for the construction of the subject project.
This permit shall be effective from the date of issuance until October 18, 2017, and shall be
subject to the conditions and limitations as specified therein. Please pay special attention to
the Operation and Maintenance requirements in this permit. Failure to establish an adequate
system for operation and maintenance of the stormwater management system will result in
future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have
the right to request an adjudicatory hearing upon written request within sixty (60) days
following receipt of this permit. This request must be in the form of a written petition,
conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of
Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands
are made this permit shall be final and binding.
If you have any questions, or need additional information concerning this matter, please
contact Li9da Lewis, or me at [phone].
Sin fely C� fig
Edward Beck
Regional Supervisor
Surface Water Protection Section
ENB/arl: S:\WQS\STORMWATER\PERMIT\070912.oct07
cc: John Jenkins, P.E., Stewart Engineering
Delaney Aycock, Brunswick County Inspections
Jeff Phillips, Brunswick County Engineering
Linda Lewis
Wilmington Regional Office No`hCarolina
Central Files A17tura//y
North Carolina Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405 Phone [phone] Customer Service
Wilmington Regional Office Internet: www.ncwatcryunlitv.ore Fax [phone]
An Equal OpportunilylAKrmative Action Employer — 50% Recycled110% Post Consumer Paper

State Stormwater Management Systems
Permit No. SW8 070912
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of
North Carolina as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
John A. Atkinson and St. James Plantation, LLC
Harbor Walk Condominiums
St. James Drive at Pinecrest Drive, St. James Plantation, Brunswick County
FOR THE
construction, operation and maintenance of one (1) infiltration basin with 2 pumped
underground storage systems in compliance with the provisions of 15A NCAC 2H .1000
(hereafter referred to as the "stormwater rules') and the approved stormwater
management plans and specifications and other supporting data as attached and on file
with and approved by the Division of Water Quality and considered a part of this permit.
This permit shall be effective from the date of issuance until October 18, 2017 and shall
be subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.6 on page 3 of this permit. This stormwater
system also includes two (2) underground storage areas. Runoff is collected in
the underground storage areas and pumped to the infiltration basin for treatment.
3. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
4. All overflows from the basin must be directed into a 50' vegetated filter.
5. All stormwater collection and treatment systems must be located in either
dedicated common areas or recorded easements. The final plats for the project
will be recorded showing all such required easements, in accordance with the
approved plans.
Page 2 of 7

State Stormwater Management Systems
Permit No. SW8 070912
IR1
The following design elements have been approved for this infiltration basin plus
underground storage stormwater facility, and must be provided in the system at
all times.
a. Drainage Area, acres:
Onsite, ft2.
Offsite, ft2:
b. Total Impervious Surfaces, ft2:
Buildings, ft2:
Roads/Parking, ft2:
Other, ft2:
Offsite, ft2:
C. Basin Depth, feet:
d. Design Storm, inches:
e. Seasonal High Water Table, FMSL:
f. Bottom Elevation, FMSL:
g Permitted Surface Area @Bottom, ft2:
h Permitted Basin Storage Volume, ft3:
i. Storage/Bypass Elevation, FMSL:
j. Underground Storage System #1:
k. System #1 Storage Volume, ft3:
I. Underground Storage System #2:
m. System #2 Storage Volume, ft3:
n Total Storage Volume, ft3:
o. Type of Soil:
p. Expected Infiltration Rate, in/hr:
q. Pump Rate:
r. Time to Draw Down, hours:
s. Receiving Stream / River Basin:
t. Stream Index Number:
u. Classification of Water Body:
II. SCHEDULE OF COMPLIANCE
6
261,447
0
203,000
100,700
77,219
25,081
0
1.0
1.5
9.0
12.0
1,875
2,219
13.0
259 If of 5' 0 piping
5,085
144 If of Contech 24' x 7' arch
20,306
27,610
Murville find sand
3.3
System #1 @13 gpm
System #2 @50 gpm
53.0
ICWW / LBR59
15-25
"SA HQW"
1. No homeowner/lot owner/developer shall fill in, alter, or pipe any drainage feature
(such as swales) shown on the approved plans as part of the stormwater
management system without submitting a revision to the permit and receiving
approval from the Division.
2. The permittee is responsible for verifying that the proposed built -upon area for
the project does not exceed the allowable built -upon area.
3. The Director may notify the permittee when the permitted site does not meet one
or more of the minimum requirements of the permit. Within the time frame
specified in the notice, the permittee shall submit a written time schedule to the
Director for modifying the site to meet minimum requirements. The permittee
shall provide copies of revised plans and certification in writing to the Director
that the changes have been made.
4. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately. Infiltration systems should not be used
as erosion control devices, due to the potential clogging. If the stormwater
system was used as an Erosion Control device, it must be restored to design
condition prior to operation as a stormwater treatment device, and prior to
occupancy of the facility.
Page 3 of 7

State Stormwater Management Systems
Permit No. SW8 070912
5. The permittee shall submit to the Director and shall have received approval for
revised plans, specifications, and calculations prior to construction, for any
modification to the approved plans, including, but not limited to, those listed
below:
a. Any revision to the approved plans, regardless of size.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area.
e. Further subdivision, acquisition, or sale of all or part of the project area.
The project area is defined as all property owned by the permittee, for
which Sedimentation and Erosion Control Plan approval or a CAMA Major
permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the
approved plan.
6. The Director may determine that other revisions to the project should require a
modification to the permit.
7. 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.
8. Upon completion of construction, prior to issuance of a Certificate of Occupancy,
and prior to operation of this permitted facility, a certification must be received
from an appropriate designer for the system installed certifying that the permitted
facility has been installed in accordance with this permit, the approved plans and
specifications, and other supporting documentation. Any deviations from the
approved plans and specifications must be noted on the Certification.
9. The permittee shall at all times provide the operation and maintenance
necessary to assure that all components of the permitted stormwater system
function at optimum efficiency. The approved Operation and Maintenance Plan
must be followed in its entirety and maintenance must occur at the scheduled
intervals including, but not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowin.9 and revegetation of side slopes.
d. Immediate repair of eroded areas.
e. Maintenance of side slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of filter media, bypass structures,
underground storage areas, orifice, catch basins and piping.
g. Access to all components of the system must be available at all times.
10. Records of maintenance activities must be kept and made available upon
request to authorized personnel of DWQ. The records will indicate the date,
activity, name of person performing the work and what actions were taken.
11. Permanent seeding requirements for the stormwater control must follow the
guidelines established in the North Carolina Erosion and Sediment Control
Planning and Design Manual.
12. Prior transfer of the permit, the stormwater facilities will be inspected by DWQ
personnel. The facility must be in compliance with all permit conditions. Any
items not in compliance must be repaired or replaced to design condition prior to
the transfer. Records of maintenance activities performed to date will be
required.
Page 4 of 7

State Stormwater Management Systems
Permit No. SW8 070912
13. This permit shall become voidable unless the facilities are constructed in
accordance with the conditions of this permit, the approved plans and
specifications, and other supporting data.
14. Built upon area includes, but is not limited to, structures, asphalt, concrete,
gravel, brick, stone, slate, coquina and parking areas, but does not include
raised, open wood decking, or the water surface of swimming pools.
III. GENERAL CONDITIONS
This permit is not transferable to any person or entity except after notice to and
approval by the Director. In the event there is either a desire for the facilities to
change ownership, or there is a name change of the Permittee, a
"Name/Ownership Change Form" must be submitted to the Division of Water
Quality signed by both parties involved, accompanied by the appropriate
documentation as listed on page 2 of the form. The project must be in good
standing with DWQ. The approval of this request will be considered on its merits
and may or may not be approved.
The permittee is responsible for compliance with all of the terms and conditions
of this permit until such time as the Director approves the transfer request.
3. Failure to abide by the conditions and limitations contained in this permit may
subject the Permittee to enforcement action by the Division of Water Quality, in
accordance with North Carolina General Statute 143-215.6A to 143-215.6C.
4. The issuance of this permit does not preclude the Permittee from complying with
any and all statutes, rules, regulations, or ordinances which may be imposed by
other government agencies (local, state, and federal) which have jurisdiction.
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 permit may be modified, revoked and reissued or terminated for cause. The
filing of a request for a permit modification, revocation and reissuance or
termination does not stay any permit condition.
7. Permittee grants permission to staff of the DWQ to access the property for the
purposes of inspecting the stormwater facilities during normal business hours.
8. The permittee shall notify the Division in writing of any name, ownership or
mailing address changes within 30 days.
9. A copy of the approved plans and specifications shall be maintained on file by
the Permittee for a minimum of ten years from the date of the completion of
construction.
Permit issued this the 18th day of October 2007.
NORTH-'(�AROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
/or Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Page 5 of 7

State Stormwater Management Systems
Permit No. SW8 070912
Harbor Walk Condominiums
Stormwater Permit No. SW8 070912
Brunswick County
Designer's Certification
Page 1 of 2
I, , as a duly registered in
the State of North Carolina, having been authorized to observe (periodically/weekly/full
time) the construction of the project,
(Project)
for (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form are a part of this Certification.
Noted deviations from approved plans and specifications:
Signature
Registration Number
Date
SEAL
Page 6 of 7

State Stormwater Management Systems
Permit No. SW8 070912
Certification Requirements: Page 2 of 2
1. The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The outlet/bypass structure elevations are per the approved plan.
6. The outlet structure is located per the approved plans.
7. 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. Required drawdown devices are correctly sized per the approved plans.
13. All required design depths are provided.
14. All required parts of the system are provided, such as a vegetated shelf, a
forebay, and the vegetated filter.
15. The required dimensions of the system are provided, per the approved
plan.
cc: NCDENR-DWQ Regional Office
Delaney Aycock, Brunswick County Building Inspections
Page 7 of 7

OFFICE USE ONLY
Date Received
Fee Paid
Permit Number
�45C X C3-7ZJS7
56080-709/2
9 - 2 4, 2C*7 COrn
1G _ 1 g ZC07 0y 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
Applicants name (specify the name of the corporation, individual, etc. who owns the project)
St. James Plantation, LLC
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Bill Schoettelkotle, VP - Multifamily Development bi 2Ui' 0ri% pF A. Aikjg—%w /t/2
3. Mailing Address for person listed in item 2 above:
P.O. Box 10879
City: Southport State: NC Zip: 28461
Telephone Number: ( ) [phone]
4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
Harbor Walk Condominiums
5. Location of Project (street address):
Corner of St. James Drive and Pinecrest drive
City: St. James Plantation County: Brunswick
6. Directions to project (From nearest major intersection):
The site is located at the northwest corner of St. James Drive and Pinecrest Drive.
7. Latitude: N 33d 55' 42.52" Longitude: W 78d 7' 43.28" of project
8. Contact person who can answer questions about the project:
Name: Nick Lauretta, El, Stewart Engineering Inc. Telephone Number:
IL PERMIT INFORMATION:
1. Specify whether project is (check one): X New Renewal
910 I 796-0145
Modification
Form SWU-101 version3.99 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 and its issue date (if known)
3. Specify the type of project (check one):
Low Density X High Density Redevelop _General Permit _Other
4. Additional Project Requirements (check applicable blanks):
_CAMA Major X Sedimentation/Erosion Control _404/401 Permit _NPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748.
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 runoff from the site will be captured by two (2) underground detention basins and individually pumped up to
an above ground infltration basin. The infiltration basin is sized to provide an infiltration rate equal to the additive rate of
the two (2) stormwater pumps
2. Stormwater runoff from this project drains to the
3. Total Project Area: 14.53 acres
5. How many drainage areas does the project have?
Lumber
River basin.
4. Project Built Upon Area: 32.07 %
6. Complete the following information for each drainage area. If there are more than two drainage areas in the
project, attach an additional sheet with the information for each area provided in the same format as below.
Basin Information
Drainage Area I
Drainage Area 2
Receiving Stream Name
Intracoastal Waterway
Receiving Stream Class
SA;HQW
Drainage Area
261,447 sf = 6.002 ac
Existing Impervious" Area
Proposed Impervious*Area
203,000 sf = 4.660 ac
% Impervious` Area (total)
77.6 %
Impervious* Surface Area
Drainage Area I
Drainage Area 2
On -site Buildings
100,700 sf = 2.312 ac
On -site Streets
On -site Parking
77,219 sf = 1.773 ac
On -site Sidewalks
25,081 sf = 0.576 ac
Other on -site
Off -site
Total: 203,000 sf = 4.660 ac
Total:
` Impervious area is defined as the built upon area including, but not lirnited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
Form S W U-101 Version 399 Page 2 of 4

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

VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Regional Office.
1. Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
Original and one copy of the Stormwater Management Permit Application Form
One copy of the applicable Supplement Form(s) for each BMP
Permit application processing fee of $420 (payable to NCDENR)
Detailed narrative description of stormwater treatment/management
Two copies of plans and specifications, including:
- Development/Project name
- Engineer and firm
- Legend
- North arrow
- Scale
- Revision number & date
- Mean high water line
- Dimensioned property/project 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, please complete this section.
Designated agent (individual or firm): Stewart Engineering, Inc
Mailing Address: 201 N. Front Street, Suite 103
City: Wilmington State: NC Zip: 28401
Phone: ( 910 ) 796-0145 Fax: ( 910 ) 796-0146
VIII. APPLICANT'S CERTIFICATION
I, (print or type name of person listed in General Information, item 2) Bill Shoettelkotte, VP - Multifamily Development
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the projectwill be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded, p�d that the proposed project complies with the requirements of 15A
NCAC 21-1.1000. 1 . -d-
Date: / Z J 7
Form SWU-101 Version 3.99 Page 4 of 4

LETTER OF TRANSMITTAL
STEWART
TO
FROM
Linda Lewis
Nick Lauretta
NCDENR
Project Engineer Intern
127 Cardinal Drive Ext.
[phone] x 408
Wilmington, NC 28405
DATE SENT VIA
October 18, 2007 Hand Delivery
PROJECT NUMBER PROJECT NAME
V7010 HarborWalk Condominiums SW8 070912
COPIES DATE DESCRIPTION
2
10 18 07
Drainage Area Ma C304
2
10/18/07
Page 1 of Infiltration Basin Supplement
1
10 09/07
Stormwater Impact Analysis
For approval
®
For review & comment
Returned for corrections
For your use
Approved as submitted
Returned after review
As requested
Approved as noted
Resubmit copies for approval
COMMENTS
Linda,
Please find attached an two copies of sheet C304 and page 1 of the Infiltration Basin
Supplement for the HarborWalk Condominiums project.
Thank You,
OCT 1 8 Zook
SIGNED
Nick Lauretta
COPIED TO
ENGINEERING. INNOVATION. SOLUTION S.T� 201 N FRONT ST WILMINGTON, NC T 910.796.0145
SUITE 103 28401 F 910.796.0146

Stormwater Impact Analysis
NCDENR Stormwater Permit
For the proposed
Harbor Walk Condominiums
St. James Plantation, North Carolina
Prepared for
Cline Design Associates, PA
Prepared By
Stewart Engineering, Inc.
CCS I
STEWART
September 10, 2007
�,��EgV]ED
OCT 18 2007
DWQ
PROJ #.:q ojU9/2-
JE
�n i

Storm Impact Analysis
For
Harbor Walk Condominiums
St. James Plantation, North Carolina
Prepared for:
Cline Design Associates, PA
Prepared by:
Stewart Engineering, Inc.
201 N. Front Street, Suite 103
Wilmington, NC 28401
Stewart Project No. V7010
September 10, 2007

STORMWATER IMPACT ANALYSIS
HARBOR WALK CONDOMINIUMS
ST. JAMES PLANTATION, NORTH CAROLINA
EXECUTIVE SUMMARY
This Stormwater Impact Analysis has been prepared specifically to address
the requirements of Section 15A NCAC 02H .1005 of the North Carolina
Administrative Code as it pertains to the stormwater requirements for coastal
counties. The project site is within one-half mile of the Intracoastal Waterway,
which is classified as SA/HQW. Therefore, stormwater management must be in
accordance with Rule .1005 (2b).
Site Information
The Harbor Walk project is located within St. James Plantation at the corner
of St. James Drive and Pinecrest Drive. The site drains directly to the Intracoastal
Waterway, within the Lumber Basin, and is located within a FEMA floodplain zone
AE-11. In addition, jurisdictional wetland features are present on the western edge
of the project site. No work is proposed within the jurisdictional wetland feature.
The site is predominantly undisturbed with areas of dense vegetation and open
space. Two (2) man-made drainage channels are present onsite, which drain to an
existing wet pond. According to geotechnical analysis, the majority of soils onsite
consist of interbedded clean fine to medium sands with a trace to some clay and
shell fragments. The National Resource Conservation Service (NRCS) delineates two
(2) major soil groups onsite; Muckalee loam (Mu) and Murville mucky fine sand
(Mk).
Proposed Improvements
The project encompasses approximately 14.53 acres (ac) of previously
undeveloped land. Proposed site improvements include the construction of eleven
(11) townhome buildings, a pool and pool house, and associated parking areas and
amenities. The proposed disturbed area is approximately 10.50 ac and the
proposed built upon area (BUA) is approximately 4.660 ac, or 203,000 sf. The
proposed impervious percentage for the site is 32.07%.
Stormwater for the proposed site will be managed by a storm drainage
system that conveys runoff to two (2) separate underground detention basins with
individual pump systems, and a single infiltration basin.

Design Requirements
Per Section 15A NCAC 02H .1005 (2b) of the North Carolina Administrative
Code for sites that are not with 575 ft of Outstanding Resource Water but are within
0.5 miles of SA waters, the State Stormwater Regulations mandate that the runoff
from the first inch and a half of rainfall be captured and released over a period of 2
to 5 days. The treatment devices proposed are two (2) separate underground
detention basins with individual pump systems, and a single infiltration basin. The
two (2) underground detention tanks provide a bypass as well as a vegetated
buffer, requiring the treatment and release over a period of 2 to 5 days of the first
inch and a half of rainfall.
Design Procedure
The stormwater management system has been designed to capture
the runoff from all proposed BUA on the site through the use of roof leader
collection, storm drainage pipe systems, and site grading. Areas that do not have
BUA, but are proposed to be disturbed shall be replanted and allowed to sheet flow
off of the site. One (1) above ground infiltration basin is proposed onsite and is
located at the southeastern corner of the site. In addition, two (2) separate
underground detention vaults are proposed onsite; Detention Basin #1 is located on
the western portion of the site and Detention Basin #2 is located on the eastern
portion of the site.
The infiltration basin is located on a portion of the site that has been
determined to have a sufficient infiltration rate and separation from the seasonal
high water table (SHWT). Based on geotechnical information provided by
Residential Foundation Testing Services (RFTS), the seasonal high water table is at
an approximate elevation of 9 ft. An infiltration site visit, conducted by Vince Lewis
of NCDENR on August 6, 2007, confirmed that the elevation provided by RFTS was
suitable for an infiltration design. In addition, RFTS determined that the basin site
has an average infiltration rate of 3.3 in/hr. Based on this information and the
natural topography of the site, the infiltration basin bottom was set at an elevation
of 12 ft, which is approximately 3 feet above the SHWT. The basin bottom surface
area of 1875 sf was sized in conjunction with the pump designs to provide an
infiltration flow rate of 0.143 cfs (surface area multiplied by infiltration rate) equal
to the additive flow rates of both pumps. The basin is proposed to be one (1) foot
deep with side slopes of 3:1 or greater. In addition, a 50 ft overflow vegetated filter
is provided for larger storm events.
Detention Basin #1 is located on the western side of the existing pond and
captures runoff from a 1.012 acre drainage area with a proposed BUA of 0.979
acres (42,645 sf). The proposed system is comprised of a five (5) foot diameter
HDPE pipe detention system with a total storage volume of 5085 cf. In addition, a
1.5 horsepower (hp) pump is proposed to convey the total storage volume, at a
rate of 13 gpm or 0.029 cfs, to the above ground infiltration basin. At this flow rate,
Detention Basin #1 will be completely drawn down in 2.03 days.

Detention Basin #2 is located on the eastern side of the existing pond and
captures runoff from a 4.990 acre drainage area with a proposed BUA of 3.681
acres (160,355 sf). The proposed system is comprised of a 24 ft wide by 7 ft tall
pre -cast vault with a total length of 144 ft. The total storage volume provided in
Detention Basin #2 is 20,306 cf. In addition, a 1.5 hp pump is proposed to convey
the total storage volume, at a rate of 50 gpm or 0.111 cfs, to the above ground
infiltration basin. At this flow rate, Detention Basin #2 will be completely drawn
down in 2.11 days.
Five exhibit maps accompany this report to provide additional information.
Exhibit EX-1 shows the existing conditions of the site. Exhibit EX-2 shows the
proposed conditions of the site. Exhibit EX-3 shows Detention Basin #1 in detail.
Exhibit EX-4 shows Detention Basin #2 in detail. Exhibit EX-5 shows the drainage
areas for each detention basin.
The detention basins have been sized to capture the runoff from the first inch
and a half of rainfall for their respective drainage areas. Each detention basin
provides a bypass and grassed swale for overflow; therefore they have only been
sized for the first inch and a half.
Overall Results / Summary
Table 1 below shows the statistics for the proposed detention basins. The
proposed detention basins provide the required storage volume and the infiltration
basin filters the total storage volume, therefore treatment credit is assumed for the
entire drainage area.
Basin
Drainage
Impervious
Dimensions
Required
Provided
Grassed
Area
Area
Volume
Volume
Bypass
Outlet
ac
ac
ft
cf
cf
Provided?
Provided?
1
1.012
0.979
47x37x5
5,078
5,085
YES
YES
2
4.990
3.681
144x24x7
19,397
20,306
YES
YES
Table 1.1 - Detention Basin Statistics
Conclusion
Based on the results of this Stormwater Impact Analysis, the requirements of
Section 15A NCAC 02H .1005 of the North Carolina Administrative Code as it
pertains to the stormwater requirements for coastal counties have been met for the
proposed project. Runoff from all new impervious area has been captured in the
proposed detention basins and treated in the proposed infiltration basin.

R FI
Residential Foundation Testing Services, PLLC
St. James Properties, LLC
Post Office Box 10879
Southport, North Carolina 28461
Attention: Mr. Dill Schoettelkotte
July 24, 2007
Reference: Infiltration 'resting and Seasonal High Watertable Estimates
Harbor Walk Project
St. James Plantation
Southport, North Carolina
RFTS Job No. 201-07
Dear Mr. Schoettelkotte:
RFTS is pleased to provide testing services during the construction of the Harbor Walk project
located in St. James Plantation near Southport, North Carolina. Specific site grading plans had
not been provided to us at the time this report was prepared.
DESCRIPTION OF ACTIVITIES AND FINDINGS
As requested, our staff visited the site on July 12 and 18, 2007, to perform infiltration testing and
estimate the seasonal high watertable at three locations identified by Mr. Steve Thomas with
Stewart Engineering. The purpose of this testing was to provide soil parameters for stormwater
infiltration design.
Seasonal High Watertable Estimate
Hand auger borings were advanced at three locations to depths ranging from approximately 6 '/2
to 7 feet below the existing ground surface in areas proposed by the civil designer for infiltration
structures. The encountered soils were logged and visually classified by depth and a Munsell Soil
Color Chart was used to determine the hue, value, and chroma of the visually distinct soil layers.
Our soil logs are presented in Table 1.
Soils encountered at Test Location 1 generally consist of interbedded clean fine to medium sands
and sands with a trace to some clay and shell fragments. We believe these are likely dredge
spoils deposited within the area. Comparison of the soils to the Munsell Chart suggests the
presence of a zone of aerated soils approximately 44 to 54 inches below the existing surface,
indicative of seasonal high water level.
1305 3A Carolina Beach Ave N Office: 910-458-1377
Carolina Beach, North Carolina 28428 Fax: [phone]

RFTS Job No. 201-07 Page Two
St. James Properties, LLC July 24, 2007
A measurement made 1 hour after augering indicates a depth to standing water in the boreholes
of 64 inches below the existing ground surface at test location 1.
Soils encountered in our boring at Test Location 2 generally consist of interbedded clean fine to
medium sands in the profile. Comparison of the soils to the Munsell Chart suggests the presence
of a zone of aerated soils approximately 32 to 53 inches below the existing surface, indicative of
seasonal high water level. A measurement made 1 hour after augering indicate a depth to
standing water in the boreholes of 74 inches below the existing ground surface at this test
location.
Soils encountered in our boring at Test Location 3 generally consist of interbedded clean fine to
medium sands with a weakly cemented zone between 37 to 49 inches below the ground surface
in the profile. Comparison of the soils to the Munsell Chart suggests the presence of a zone of
aerated soils approximately at this depth indicative of seasonal high water level. A measurement
made I hour after augering indicate a depth to standing water in the boreholes of 78 inches
below the existing ground surface at this test location.
Infiltration Testing
Infiltration testing was performed using a model 2800 Guelph Permeameter which is a constant -
head device which operates on the Mariotte siphon principle and is referenced in ASTM D-5126.
The permeameter is used to determine field saturated hydraulic conductivity in centimeters per
second for soil at a specified depth. This testing involves advancing a borehole to the desired
infiltration depth and introducing water at a constant head to determine the steady state flow rate
from which the hydraulic conductivity can be calculated.
No specific test depth was specified by the civil designer, however, infiltration testing was
performed two feet above the seasonal high water level estimates. The results of our
permeameter testing are presented in Table 2.
RECOMMENDATIONS
Based on the results of our field testing and soil classifications at the test locations, it is our
opinion that in order to achieve the steady state flow rates obtained during our testing, the areas
of infiltration galleries or other infiltration structures should be constructed to introduce storm
water at the depths our testing was performed. For purposes of sizing the structures we
recommend an ultimate application rate of 3.3, 7.3, and 10.2 inches per hour for water introduced
at a depth of 20, 8, and 13 inches below the existing grade for test locations 1, 2, and 3,
respectively. These recommendations should be reviewed by appropriate regulatory authorities
before finalizing the details of any civil design.

RFTS Job No. 201-07 Page Three
St. James Properties, LLC July 24, 2007
CLOSURE
Please find attached our field data and a sketch showing the approximate test locations. If you
have any questions after reviewing this letter, please do not hesitate to contact us at your
convenience.
Sincerely,
RFPS, PLLC
David L. Winstead
Field Operations Manager
DI.W:SDK/dlw
Attachments
Copy: Mr. Steve Thomas, Stewart Engineering
Steven D. Kelly P.E.
Senior Engine
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SSfn; _yam
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Table 1
Munsell Soil Classifications
Harbor Walk Project
St. James Plantation
Southport, North Carolina
RIFTS Job No. 201-07
Loc
Soil Description
Hue
Value
Chroma
Depth
Comments
in
1
Dark Yellowish Brown fine to
10YR
4
4
0-10
—
medium SAND trace organics
Light Yellowish Brown fine to
10YR
6
4
10-22
—
medium SAND, trace shell
firaRments
Dark Yellowish Brown fine to
10YR
4
4
22-31
medium SAND with Clay lumps
and shell fragments
Yellowish Brown fine to medium
10YR
5
4
31A4
SAND, trace clay lumps and
shell fragments
Very Dark Brown fine to medium
10YR
2
2
44-54
S}1WT
SAND some Clay
Dark Yellowish Brown fine to
10YR
4
4
54-68
Moist
medium SAND
Very Dark Brown fine to medium
10YR
2
2
68-80
H2O Q 64^
SAND
2
Topsoil
_
-
0-7
—
Brown fine to medium SAND,
1 OYR
5
3
7-12
—
trace organics
Dark Yellowish Brown fine to
10YR
3
4
12-16
—
medium SAND, trace organics
Yellow fine to medium SAND
10YR
7
6
16-32
Slight
modeling
Brownish Yellow fine to medium
1 OYR
6
6
32-53
SHWT
SAND
with
modeling
Brownish Yellow fine to medium
SAND
10YR
6
8
53-65
Slight
moisture
Olive Yellow fine to medium
SAND
2.5Y
6
6
65-75
H2O @ 74"
Dark Yellowish Brown fine to
I OYR
3
6
75-78
Wet
medium SAND
3 1
Topsoil
_
_
0-8
Brown fine to medium SAND,
10YR
5
3
8-11
trace orRanics
Yellowish Brown fine to medium
10YR
5
4
11-13
Clean
SAND

Table 1 - continued
Munsell Soil Classifications
Loc
Soil Description
Hue
Value
Chroma
Depth
Comments
in.
Brownish Yellow fine to medium
I OYR
6
6
13-29
—
SAND
Yellowish Brown fine to medium
I OYR
5
8
29-37
Slight
SAND
streaking
Strong Brown fine to medium
7.5YR
5
8
3749
SHWT,
SAND
weakly
cemented,
slight
moisture
Yellowish Brown fine to medium
I OYR
5
8
49-56
Moist
SAND
Yellow fine to medium SAND
2.5Y
8
6
56-63
Moist
Dark Yellowish Brown fine to
I OYR
4
4
63-83
H2O Q 78"
medium SAND

Table 2
Guelph Permeameter Test Results
Harbor Walk Project
St. James Plantation
Southport, North Carolina
RFTS Job No. 201-07
Location
1
2
3
Depth in.
20
8
13
Hi cm
5
5
5
R, cm/min
2.6
2.4
3.2
Ris cm/sec
0.0433
0.040
0.533
H2 cm
10
10
10
R2 cm/min)
1 4.4
5.3
7.2
Res cm/sec
0.0733
0.0883
0.120
Kfh cm/sec
2.35x10'
5.14x10-
7.19x10"
0,(cm/sec)
0.0261
6.87x 10-
7.21 x 10'
a cm"
0.0902
0.7481
0.9972
Definition of Terms
Ri,2 — Established 3 or more constant rate of water level change (cm/min)
Ris, 2s — Calculated steady state flow rates (cm/sec)
H 1.2 — Maintained Head of H2O (cm)
Kr, — Calculated field saturated hydraulic conductivity (cm/sec)
% — Matric flux potential (cm/sec)
a — Alpha parameter
Depth — Depth of well hole (in.)
Location — Test location identification number
Note: Diameter of well is 3.0 cm.

Residential Foundation
INFILTRATION TEST LOCATIONS
MARINA WALK SITE
ST. JAMES PLANTATION
SOUTHPORT, NORTH CAROLINA
JOB NO. 201-07
FIGURE 1
DRAWING NOT TO SCALE
DATE: 7/24/07
SKETCH: DLW
REVIEW: SDK
Logend
9 APPROXIMATE TEST LOCATION
Residential Foundation Testing Services,
1305 3A Carolina Beach Ave N
Carolina Beach, North Carolina 29428
Office: 916d58-1377
Far. 910458.5261

CCS
STEWART
Infiltration Basin Sizing
Project: Harbor Walk
Project No. V7010
Date 4-Sep-07
Pump #1 flow rate = 13 gpm 0.029 cfs
Pump #2 flow rate = 50 gpm 0.111 cfs
Additive pump flow rate = 63 gpm 1 0.140 cfs
Storage Provided
Incr
Accum
I stage
Contour
Area
Vol
Vol
Z
ft
ft2
ft3
ft3
ft
12
1875
0
0
0
13
2562
2219
2219
1
Storage Volume Provided @ Elev. 13.00 — 2219 cu ft
Volume infiltrated
Infiltration Basin
Bottom Area = 1875 sf
Infiltration rate = 3.3 in/hr
Infiltration rate = 7.64E-05 ft/sec
Infiltration rate = 64 gpm 0.143 cfs

C
STEWART
Detention Basin #1 Sizing
Project: Harbor Walk
Project No. V7010
Date 4-Sep-07
Cfnrano OonniroA fnr firct inch nnrl a hnif nuor onfiro Arainana area
Draina a Area
Required Storage for 1st inch and a half of runoff
Total Drainage Area =
1.012 ac
Simple Method
Total Impervious Area =
0.979 ac
Percent Impervious =
97%
Rv = 0.05 + 0.009(I)
I = % impervious = 97%
Depth of runoff storage =
1.5 inch
Rv = 0.92 in
Volume = S073 cf
Calculation Methods are taken from DEHNR Stormwater Best Management Practices Manual, November 1995
Storage Volume Required = 5073 cu ft I
Volume Provided
Storage volume in underground pipe detention system
Pipe Runs Headers
Pipe Dia = 5 ft Pipe Dia = 5 ft
Pipe Len = 185 If Pipe Len = 37 If
Vol = 3632 cf Vol = 1453 cf
'Total Storage Volume = 5085 cf I
Drawdown Time (Full Storage)
Pump Flow rate = 13 gpm 0.029 cfs
Storage Volume= 5085 cf
I Drawdown Time = 2.03 day I
STEWART 201 N. Front Street, Suite 103, Wilmington, NC 28401 [phone]

CCS
STEWART
Level Spreader Sizing
Project: Harbor Walk
Project No.: V7010
Date: 5-Sep-07
Per NCDENR DWQ - Level Spreader Design Options Version 1.0 -
Per length of level spreader shall be equal to 13 If of level spreader for each cfs of Flow in the 10-yr storm.
Basin #1 Bypass Pipe
10-yr Peak Flow = 1.75 cfs
Level Spreader Length = 22.75 If
Use = 23 If

CCS
STEWART
Detention Basin #2 Sizing
Project: Harbor Walk
Project No. V7010
Date 4-Sep-07
Ctnrane Remdred for first Inch and a half over entire drainaae area
Drainage Area
Required Storage for 1st inch and a half of runoff
Total Drainage Area =
4.990 ac
Simple Method
Total Impervious Area =
3.681 ac
Percent Impervious =
74%
Rv = 0.05 + 0.009(I)
I = % impervious = 74%
Depth of runoff storage =
1.5 inch
Rv = 0.71 in
Volume = 19397 cf
Calculation Methods are taken from DEHNR Stormwater Best Management Practices Manual, November 1995
I Storage Volume Required = 19397 cu ft I
Volume Provided
Storage volume in underground vault detention system
24' Mid -Span (Contech)
Length= 142 ft
XS Area= 143 sf
Volume = 20306 cf
ITotal Storage Volume = 20306 cf I
Drawdown Time (Full Storage)
Pump Flow rate = 50 gpm 0.111 cfs
Storage Volume= 20306 cf
I Drawdown Time = 2.11 day I
STEWART 201 N. Front Street, Suite 103, Wilmington, NC 28401 [phone]

Project
Harbor Walk Date 5-Sep-07
Project No.
V7010 Designer N. Lauretta
Outlet ID
FES-1
Outlet flowrate
7.4 cfs
Pipe diameter
24 inches
Outlet pipe slope
0.52 percent
Full flow velocity
2.4 ft/sec
-----------------
----
----
---------
�8ag
o
E
�EOE
HE
-�-
==
e
�eeoeeOReae
=-
�
Elm
tt
Zone from graph above = 1
Outlet pipe diameter
24 in.
Outlet flowrate
7.4 cfs
Outlet velocity
2.4 ft/sec
Material =
Class A
Length =
8.0 ft.
Width =
6.0 ft.
Stone diameter =
3 in.
Thickness =
9 in.
Zone
Material
Diameter
Thickness
Length
Width
1
Class A
3
9
4 x D(o)
3 x D(o)
2
Class B
6
22
6 x D(o)
3 x D(o)
3
Class 1
13
22
8 x D(o)
3 x D(o)
4
Class 1
13
22
8 x D(o)
3 x D(o)
5
Class II
23
27
10 x D(o)
3 x D(o)
6
Class II
23
27
10 x D(o)
3 x D(o)
7
Special study required
Calculations based on NY DOT method - Pages 8.06.05 through 8.06.06 in NC Erosion Control Manual
Ripmp Outlet Protection.xls
9/5/2007

Cs
STEWART
Buoyancy Calculations
* Assume entire structure is submerged
* Assume non -reinforced concrete
* Allowed to use saturated soil over lip
* Assume surcharge plumb in place of cone section (conservative)
* Disregard weight of pumps and appurtenances
* Assume 8" wall and slab thicknesses
Specific Weight of water (g) = 62.4 pcf
Specific Weight of concrete (g) = 145 pcf
Specific Weight of sat. soil (g) = 110 pcf
Detention Basin #2
Ground Surface / Rim =
8.65
ft
Structure Invert =
1.65
ft
Structure Interior Length =
142
ft
Structure Interior Width =
24
ft
Structure Interior Full Depth =
6.5
It
Structure Wall Thickness =
10.0
in
Structure Top Thickness =
10.0
in
Base Oversize =
3.0
It
Structure Base Thickness =
36.0
in
Volume Displaced by Structure = 38103.6 cf
Buoyant Force (Fb) = 2377664 lb (Fb) _ (g water) * (Vol. Displaced)
Volume Lid = 3072.9 cf
Volume Walls = 279.4 cf
Volume Base = 14218.3 cf
Total Volume Concrete = 17570.6 cf
Concrete Force (Fc) = 2547744 lb (Fc) _ (g concrete) * (Total Vol. Concrete)
Area of Saturated Soil Column = 3687.4 sf
Volume of Saturated Soil Column =-1229.1 cf
Saturated Soil Force (Fs) _-135206 lb
Total Resisting Force = 2412538 lb
(Fs) _ (g sat. soil) * (Total Vol. Sat. soil)
I Calculated Anti -flotation Factor of Safety = 1.01 OK I

C
STEWART
Pump #1 Sizing
Total Dynamic Head = h Z+ h F+ h v
Elevation Head, hZ a Zz - ZI
Pipe Friction Head, hp = [3.022 v "6s LJ / [C i.6s D 1.16s1
Velocity Head, h v = V z / 2g
Pump Discharge Elevation = 1.40 ft
High Point Elevation = 12.00 ft
Elevation Head, hZ = 10.60 it
Ploe Invento
Item
Units
Eq LJ Unit
Extended
Actual Pipe Length
959.0
1.0
959.0
Swing Check Valve
1.0
25.5
25.5
Gate Valve
1.0
2.0
2.0
45-Deg Bend
1.0
4.1
4.1
90-Deg Bend
2.0
7.7
15.4
IUTAL= luub.0
I Equivalent Pipe Length L = 1006.0 ft - I

C
STEWART
Initial Service Operating Point
Equivalent Pipe Length, L =
1006.0
ft
Discharge Pipe Dia., D =
3.00
in
Discharge Pipe Material =
PVC
Hazen Williams C =
140
_
Operating Point, Q =
_ 13 ;
gpm
Operating Point Flow, Q =
0.03
cfs
Discharge Pipe Area, A =
0.0491
sf
Peak Velocity, v =
0.59
fps
Pipe Friction Head Loss, hL = [3.022
v` 85
L) / [C' es D1.165)
Pipe Friction Head Loss, h L =
0.62
it
Velocity Head, h v =
0.01
ft
Static Head =
10.6
ft
Total Head =
11.22
ft
Use Total Head =
12 j
ft
5.19
psi
End of Service Operating Point
Equivalent Pipe Length, L =
1006.0
ft
Discharge Pipe Dia., D =
3.00
in
Discharge Pipe Material =
PVC
Hazen Williams C =
120
Operating Point, Q =
13 _
gpm
Operating Point Flow, Q =
0.03
cfs
Discharge Pipe Area, A =
0.0491
sf
Peak Velocity, v =
0.59
fps
Pipe Friction Head Loss, hL = [3.022
v''us
L) / [Ci.us D1.1es)
Pipe Friction Head loss, h L =
0.82
ft
Velocity Head, h v =
0.01
It
Static Head =
10.6
ft
Total Head =
11.43
ft
Use Total Head =
12 ,
ft
5.19 psi
(initial roughness)
(pump/system curve intersection)
(Hazen -Williams)
(end of life roughness)
(pump/system curve intersection)
(Hazen -Williams)
IUse Average of Initial Life and End of Life Total Head = 12.0 ft

CCS
STEWART
Pump #2 Sizing
Total Dynamic Head = h Z+ h F+ h v
Elevation Head, hz e ZZ -ZI
Pipe Friction Head, h F = [3.022 v''as L] / [C i.as D 1.1651
Velocity Head, h v = Vz / 2g
Pump Discharge Elevation = -0.85 ft
High Point Elevation = 12.00 ft
Elevation Head, hZ = 12.85 ft
Pipe Inventory
Item
Units
Eq L1 Unit
Extended
Actual Pipe Length
586.0
1.0
586.0
Swing Check Valve
1.0
25.5
25.5
Gate Valve
1.0
2.0
2.0
45-Deg Bend
1.0
4.1
4.1
90-Deg Bend
2.0
7.7
15.4
TOTAL =
633.0
I Equivalent Pipe Length L = 633.0 ft I
070807_Pump Design.xls System Curve - 3' (East) 9/4/2007 4:46 PM

CCS
STEWART
Initial Service Operating Point
Equivalent Pipe Length, L =
633.0
ft
Discharge Pipe Dia., D =
3.0
in
Discharge Pipe Material =
PVC
Hazen Williams C =
140
Operating Point, Q =
_ 50
gpm
Operating Point Flow, Q =
0.11
cfs
Discharge Pipe Area, A =
0.0491
sf
Peak Velocity, v =
2.27
fps
Pipe Friction Head Loss, h, _ [3.022
v"85
L] / [C"as D1.ms)
Pipe Friction Head Loss, h L =
4.69
ft
Velocity Head, h v =
0.08
ft
Static Head =
12.9
ft
Total Head =
17.62
ft
Use Total Head =
_
18
ft
7.79
psi
End of Service Operating Point
Equivalent Pipe Length, L =
633.0
ft
Discharge Pipe Dia., D =
3.0
in
Discharge Pipe Material =
PVC
Hazen Williams C =
120
Operating Point, Q =:
s0 _
gpm
Operating Point Flow, Q =
0.11
cfs
Discharge Pipe Area, A =
0.0491
sf
Peak Velocity, v =
2.27
fps
Pipe Friction Head Loss, h, =
[3.022 v1.85
L) / [Ci.85 DI.I65)
Pipe Friction Head Loss, h L =
6.24
ft
Velocity Head, h v =
0.08
ft
Static Head =
12.9
ft
Total Head =
19.17
ft
Use Total Head =
20
ft
8.66
psi
(initial roughness)
(pump/system curve intersection)
(Hazen -Williams)
(end of life roughness)
(pump/system curve intersection)
(Hazen -Williams)
Use Average of Initial Life and End of Life Total Head = 19 ft
070807_Pump Design.xls System Curve - 3" (East) 9/4/2007 4:46 PM

mym
3MW SERIES Pentair Pump Group
Submersible Sewage Pumps
1750 & 3450 rpm Models
Safety Instructions,
Installation and Service Manual
Single and double seal. Single and three phase power.
3MW PUMP
23MA397

SAFETY WARNINGS
This manual contains important information for the safe
use of this product. Read this manual completely before
using this product and refer to it often for continued
safe product use.
Failure to heed these symbols and follow the
instructions in this manual may result in severe bodlly
lnlutx or death, or substantial gropes damage.
DON THROWAWAY OR LOSE THIS MANUAL.
Keep it in a safe place so that you may refer to it often.
® DON wear loose clothing that can become
entangled in the impeller or other moving parts.
® This pump is designed to handle materials which
could cause illness or disease through direct
exposure. Wear adequate protective clothing when
Working on the pump or piping.
® To reduce risk of electfibal shock, pump must be
property grounded in accordance with the National
Electrical Code and all applicable state and local
codes and ordinances.
® ALWAYS disconnect the pump from power source
before handling or servicing.
® Any wiring to be done on pumps should be done by
a qualified electrician.
® NEVER operate a pump with a power cord that has
frayed or brittle Insulation.
® NEVER let cords or plug lay in water.
® NEVER handle connected power cords with wet
hands.
WARNING: RISK OF ELECTRICAL SHOCKI Single
phase pumps are supplied with a grounding conductor
and grounding -type attachment plug on the power cord.
To reduce risk of electrical shock, be certain that it is
connected only to a properly grounded, grounding -type
receptacle. DO NOT cut off ground pin or use an
adapter fitting. DO NOT use an extension cord with this
pump.
Entire plug may be cut off if a control panel is used. All
double seal pumps, all duplex installations and all three
phase pumps require a control box.
Follow all local electrical and safety codes and
ordinances as well as the most recent National Electric
Code (NEC-ANSI/NFPA 70).
All pumps have a GROUND WIRE that is connected
to a screw in the metal motor housing. This wire goes to
the receptacle or control box which must be connected
to good outside GROUND such as a metal water pipe
or GROUND STAKE driven at least 8 feet into the
ground.
PUMPS
® Pumps build up heat and pressure during operatioh.
Allow time for pump to cool before handling or
servicing.
® Only qualified personnel should install, operate or
repair pump.
m Keep clear of suction and discharge openings. QQ
NM insert fingers in pump with power connected.
® This pump MUST NOT be used to pump
flammable, combustible or hazardous liquids.
® Make sure lifting handles are securely fastened
each time before lifting.
® DON lift pump by power cord.
® DO NQ2 exceed manufacturers recommendation for
maximum performance, as this could cause the
motor to overheat.
® ALWAYS secure the pump in its operating position
so it can not tip over, fall or slide.
® Keep hands and feet away from impeller when
power is connected.
® DO NOT use in swimming pools, decorative
fountains or any Installation where human contact
with pumped fluid is common.
® Do not operate pump without safety devices in
place.
IMPORTANTI F.E. Myers is not responsible for losses,
injury or death resulting from a failure to observe these
safety precautions, misuse or abuse of pumps or
equipment.
zaa3snssi

TYPICAL SECTION DRAWING FOR 3MW DOUBLE SEAL PUMPS 3450 RPM
23833 97

TYPICAL SECTION DRAWING FOR 3MW SINGLE SEAL PUMPS 3450 RPM
23B33A397

REPAIR PARTS LIST FOR 3460 RPM
Ref.
No.
Derrcrlptlon
No.
Req'd
Part
Numbers
1
Nut, Cord Plug, Solid
1
25MIA002
1
Cord, Senses Double Seal)
1
253398000
to
Washer, 1/3YThk.
1
05030M
1S
Gasket, Rubber
1
05014A193
1C
Washer, 3/32" Thk.
1
OSaiDA235
2
Cord, Power
1 1
See Chart
3
Housing, Motor
1
2532713000
3A
Screw, Drive not shown)
2
0516OA004
38
Nameplate. Blank,l ph
1
25488A000
3B
Nameplate, Blank, 3 ph
1
26499A000
Pkg, 1/4'Pipe
1
05022A008
4
For 3MW Double Seal Series
2
5
Capacitor 1 phon
1
See Chart'
6
CIO, Capacitor
1
See Chart'
7
Washer, Bearing
1
19331A005
B
Bearing, Ball, Upper
1
O8585A013
9
Statorwfth Shell
1
See Chart'
10
Rotorwhh Shalt
1
See Chan'
11
Bearing, Bell, Lower
1
0856SA022
Seal, Shaft
1
AOOO
12
FOr3MW Double Seal Serer
2�
12A
I , Retaining
Fir
1
12556A033
13
Screw, Cap, 5/16 x 1.1/4
8
19100A012
For 3MW Double Seal Series
12
23933A397
Rat.
No.
Description
No.
Req'd
Pert
Numbers
Plate, Seal Bearing
1
25367DOD0
14
For 3MW Double Seal Series
1
25369D000
15
Gasket, Tetraseal7 x 6-314 x 118
1
05014AISI
For 3MW Double Seal Series
2
16
Screw, Cap, 5116 x 1
4
19100A029
17
Plate, Lower Seal Double Seal)
1
25368D0OO
18
Oil, Transformer
1 gel.
11009A006
For 3MWDouble Seal Sedes
1.12 I.
1BA
Connectors 3 ph only)
3/6
15761A001
19
Screw, ST e10 x 3l6
2
09(i22A032
20
Wire Electrode
2
21792A004
20A
Screw, Machine e6 x 1/4
2
05434A025
20B
Probe, Seal Leak
2
25343A000
21
Impeller
1 hp
1
I 260298002
1.1/2 hp
1
260298001
2hp
1
260288000
3hp
1
260298004
22
Washer, Impeller Retainer
1
05030A242
23
Screw, Machine 010 x 318
1
06106A042
24
Sealant (Grade 271 Loctite)
1
14550A001
25
Cup, HUVA
1
22835A009
26
Case, Volute (1750)
1
26423DOD0

3MW SERIES PUMPS CHART 3450 RPM
Pump
Catalog
Numbers
Pump
Engineer
Numbers
Q
Cord,
Power
Q
Capacitor
Q
Clip,
Capacitor
Q
Stator
w/shell
10
Rotor
w/shad
Style
3MW10M2-01
26473EODO
253388001
23838A000
20333AO04
25484C012
26487BO14
Single Seal
3MW10DM261
26474E0D0
25338B002
254878019
Double Seal
3MW10M2.21
26473E001
253388001
25484C008
254878014
Single Seal
3MW10DM2.21
26474E001
25MB002
25487BO19
Double Seal
3MW10M2-03
26473EO02
25338B003
_
—
_
_
—
_
25484CO07
254878015
Single Seal
3MW10DM2-03
26474E002
25487BO20
Double Seal
3MW10M2-23
26473ED03
25487BO15
Single Seal
3MW100M2-23
26474E003
264878020
Double Seal
3MW10M2-43
26473EO04
—26474E004
25487B015
Single Seal
3MW10DM2. 3
25487BO20
Double Seal
3MW10M2-53
26 473E005
25484C008
25487BO15
Single Seal
3MW100M2-53
26474E005
25487BO20
I Double Seal
3MW15M2-01
26473EO10
253388001
2383BA000
20333A004
25484CO14
254878014
Single Seal
3MW15DM2-01
26474E010
253388002
25487BO19
Double Seal
3MW75M2-21
26473E011
253388001
25484CO15
25487B1
Single Seal
3MW150M2-21
28474E011
253388002
25487BO19
Double Seal
3MW15M2-03
26473EO12
253388003
_
_
_
—
_
25484C016
25487BO16
Single Seal
3MW15DM2-03
26474EO12
25487BO21
Double Seal
3MW75M2-23
26 473E013
254878016
Single Seal
3MW15DM2.23
26474EO13
25487BO21
Double Seal
3MW15M2-43
26473EG14
25487B018
Single Seal
3MW156M243
26474E014
254878021
Double Seal
3MW15M2-53
26473E015
25484C017
254878018
Single Seal
3MW76DM2.53
26474EO15
254870021
Double Seal
3MW20M2.01
26473EO20
25338B001
23839A000
20333AO06
25484C014
254878014
Single Seal
3MW20DM2-01
26474EO20
253388002
2 4487BO19
Double Seal
3MW20M2.21
26473EO21
253388001
25484CO15
25487B1
Single Seal
3MW20DM2-21
26474E021
253388002
254878O19
Double Seal
3MW20M2.03
26473E022
25.A98B003
_
—
_
—
26484CO18
254878016
Single Seal
3MW20DM2-03
26474EO22
25487B021
Double Seal
3MW20M2.23
26 473E023
25487BO16
Single Seal
3MW20DM2.23
26474EO23
254878021
Double Seal
3MW20M2.43
26473E024
254878018
Single Seal
3MW206M2.43
26474E024
254876021
Double Seal
3MW20M2.53
26473EO25
26484CO17
254878016
Single Seal
3MW20DM2.53
26474EO25
254878021
Double Seal
3MW30M2-21
26473E030
26338B007
28520A000
20333A004
25484C018
25487BO22
Single Seal
3MW300M2-21
26474E030
25338B009
25487BO28
Double Seal
3MW30M2.03
26473EO31
253380008
—
_
—
—
_
25484CO20
25487BO23
Single Seal
3MW30DM2-03
26474EO31
254878029
Double Seal
3MW30M2-23
26473ED32
264840021
25487B023
Single Seal
3MW30DM2-23
28474E032
25487BO29
Double Seal
3MW30M2.43
28473E033
253388003
25487BO23
Single Seal
3MW30DM2-43
26474EO33
254878029
OouWe Seal
3MW30M2-53
26473E034
25484CO22
25487B623
Single Seal
3MW30DM2.53
26474E034
25487BO29
Double Seal
23833A397

TYPICAL SECTION DRAWING FOR 3MW DOUBLE SEAL PUMPS 1750 RPM

TYPICAL SECTION DRAWING FOR 3MW SINGLE SEAL PUMPS 1750 RPM
23B33A397

REPAIR PARTS LIST FOR 1750 RPM
Rat,
No.
Description
No.
Req'd
Part
Numbers
1
Nut, Cord Plug, Solid
1
25341AD02
1
Cord, Sensor Double Seal
1
25339B000
1A
Washer 1/32'Thk.
1
05030A234
IS
Gasket, Rubber
1
05014A193
1C
Washer, 3/32'Thk.
1
05030A235
2
Cord, Power
1
See Chart
3
Housing, Motor
1
25327D000
3A
Screw, Drive (rut shown)
2
0516OA004
3B
Nameplate, Blank, l ph
1
I 2548BA000
313
Nameplate, Blank, 3 ph
1
25499A000
Plug, 1/4'Pipe
1
4
For 3MW Double Seal Series
2
5
Capacitor 1 phon
1
See Chart
6
Clip. Capacitor
1
See Chart
7
Washer, Bearing
1
19331A005
8
Beadng, Bell, Upper
1
0856SA013
9
Stator with Shelf
1
See Chart
10
Rotorwith Shah
1
See Chart
11
Bearing, Bell, Lower
1
08565A018
12
Seal, Shan
+
21578A010
For 3MW Double Seal Sodas
2
12A
Fling, Retaining
1
1255BA006
13
Screw, Cap, 5/ta z 1.1/4
a
1910OA012
For3MW Double Se al Series
12
Ref.
No.
Description
No.
Req'd
Pert
Numbers
Plate, Seat Bearing
1
26430D000
14
For 3MW Double Seal Series
1
25369DO01
15
Gasket, Tetmseal 7 x 6.3/4 x 1/B
1
05014A181
For 3MW Double Seal Series
2
16
Screw, Cap, 5116 x 1
4
1910OA029
17
Plate, Lower Seal Double Seal)
1
26476D000
OII, Transformer
1 gal.
11009A008
For 3MW Double Seal Series
1.12 I.
Connectors (3 ph only)
3M
157OIA001
Screw, ST #10 x 3/8
2
09822AO32
Wire Electrode
2
21792AO04
[21
Screw, Machine 48 x 114
2
05434AO25
Probe, Seal Leak
2
25343A000
Impeller
1
26438C50D'
impeller
1
264300510
Key
1
0581aA025
22
Retainer, Impeller
1
2258SA00D
23
1 Screw, Machine 5/16 x 1
1
07597AD17
4
Sealant (Grade 271 Loclits)
1
1455OA001
r225
Cup, HUVA
1
2283SA010
6
Case, Volute(1750)
1
26437D000
It pump was manufactured prior to June 2001 order indicated
(•) number.

3MW SERIES PUMPS CHART 1750 RPM
Pump
Pump
Catalog
6rgineering
Cord
Clip
Stator
Rotor
Numbers
Numbers
Power
C acitor
Ca acitor
w/shell
w/shaft'
St e
3 1 0
2647
25338
26520A001
20333A004
254840023
7 1
a
NMW5 01 -
2647 00
25338
25487
u
3 1 -2
26471 O1
253388007
25484�24
25587 12
shg
MW 3150M4-21
26472 01
2533813009
878130
DDubleSeal
3 5
—22WflWT
253388008
25484CO25
25487 2
ng Sea
3 15 •03
26472
7 131
a
3 1 -2
26471
548 125
mgle a
3 1 •23
26472 03
5487 3
a
•-
25484CO26
15 43
2647104
253388003
254878125
gle a
15 •4
264 2
2 7 131
a
NWV5 -53
26471 05
25484CO27
7 125
sg a
3 15 3
OS
26487 3
3 0 -0
71 10
2533813=1
26487B124
SingleSeal
26520A001
20333A004
254840023
ODM4.01
26472®10
253388009
2 7 130
ble a
3 OM
26471 11
25
25484CO24
254878124
ing Sea
3 0 IT-
2647 1
2 9
2 30
e
3 0 -03
26471 12
2U8791-25
e
25484CO25
NMff0
2
25487
u e a
20 -2
2647 3
25338B008
7 125
Single Seal
310W20 -23
26472EO13
254878131
Ooub
---
•--
254840026
3 0 -43
25471E 114
253388003
2 B1
a
3 2 -43
26472 4
5487 1
u a
254B4CO27
7 1
g a
3 0 -5
2
3 0 53
264 15
131
0 •2
471 21
25MB00726520A000
20333A004
25484CO28
2 7 12
1 a
0 -21
2647221
338
254 7 132
ble al
3 0 03
26471 22
25487BI27
ng a
253388008
254840029
3 -03
26472M22
25487 133
u Sea
3 30 -23
26471 23
254 7 127
Tingle Ma
3 3 -
26472 23
254 7 133
ble a
---
---
25484C030
NX73-0—W-43—
26471 EK)24
253388003
2548 127
Y ogle Se
3 0 -43
26472ED24
254878133
uble al
3 30 -5
2 5
�2�031
25487 12
ngSeal
3 -53
6472 25
25487B133
I Double See
NOTE: It pump was manufactured prior to June 2001, order rotor as follows:
25487B124 new keyed style (listed above) or
25487BO24 old threaded style (replace "1' with an "01
23833A397 10

GENERAL DESCRIPTION AND
APPLICATION
Myers 3MW series sewage pumps are available in
both a single seal and double seal with leak detector.
Also 3MW series sewage pumps are also available in
1750 rpm and 3450 rpm models and are designed for
raw sewage applications. The 3450 rpm series can
pass a 2" spherical solids, and the 1750 rpm series can
pass 2-1/2" spherical solids. These units can also be
used for sump and general dewatering applications
where larger solids capabilities are required.
These pumps are available in single and three phase,
and either In single or double seal with seal leak
detector. All three phase units, all double seal units and
all duplex installations must be used with a control box.
All power cords and seal leak detector cords are
standard 20 feet long.
The 3MW model impellers are enclosed two vane
non -clog style, with 1750 rpm designed to pass 2-1/2"
spherical solids and 3450 rpm designed to pass 2"
spherical solids.
THESE PUMPS ARE NOT FOR USE IN SWIMMING
POOLS OR FOUNTAINS.
AIR VENTING
Upon Initial filling of wet well with water, air may be
trapped in the pump volute. To vent off this air a 5/32"
diameter hole is located in volute. BE SURE THIS
VENT HOLE IS CLEAN AFTER ANY SERVICE
WORK ON PUMP.
PACKAGING
Each pump is packed separately In a carton marked
with a catalog number and Myers engineering number.
LEVEL CONTROLS
All pumps must use sealed level control switches for
automatic operation.
Simplex single phase pumps can be made automatic
by attaching MFS controls to the pump or discharge
pipe. These switches have a fixed draw off level of 8 to
10 inches and can be used up to 1 HP. Simplex and .
higher horsepower systems may also use on/off pilot
control switches (SMNO) with control box and magnetic
starter. The ALC and AWS-1 controls can be used for
simplex single phase pumps with ratings up to 2 HP. All
duplex systems must use pilot control switches (SMNO)
with control box and magnetic starters.
Plug-in cords can be used on all the single phase
pumps with a single seal (does not have seal leak
detector). This cord has a GROUND pin that plugs into
a grounded receptacle. The grounded receptacle
cannot be used in the wet sump or basin due to
DANGER of current leakage. Sealed junction boxes
must be used In wet sumps or basins to make
connections to motor cord. The AWS-1 control also acts
as a sealed junction box for connecting power cord to
pump cord.
DOUBLE SEAL PUMPS
All pumps in this series "3MW—D" have two seals with
an oil chamber between the seals so that the seal faces
of both the lower and upper seals are oil lubricated for
longer life and greater protection against water leaking
into motor windings. These double seal units are all
made with a seal leak detector.
The leak detector in the oil seal chamber detects a
water leakage into the chamber and turns on red signal
light in the control panel. Pumps should be removed
from the sump and seals replaced after the seal light
shows in panel. Control panels must be used for pumps
having the seal leak detectors, and seal leak detectors
must be wired as illustrated in these instructions.
23833A397 11
DESIGN OF PRESSURE SEWER SYSTEMS
MYERS has available complete computer SOFTWARE
for designing PRESSURE SEWER SYSTEMS. This
gives pipe sizes to use and gives exact flow from any
pump or group of pumps in the system when operating
simultaneously.
This design DISK for IBM or COMPATIBLE computers
is available to engineers on request.
MOTOR TYPE
Motors are 3/4 frame 1 - 3 HP single or three phase, 60
hertz, 1750 & 3450 R.P.M. with class B insulation. All
single phase motors are permanent split -capacitor
(PSC) type with built-in on -winding overload protection
and do not require a start switch or start relay. The
three phase pump motors require a magnetic starter
with 3 leg overload protection. All motors have upper
and lower ball bearings and all are oil -cooled and
lubricated.
CAUTIONI Read these safety warnings first before
Installing, servicing, or operating any pump.
UL AND CSA APPROVAL
All pumps have UL and CSA approval pending. Myers
is a SSPMA certified pump member.
INSTALLATION
WARNING: Basin or tank must be vented in accord-
ance with local plumbing codes. These pumps are not
designed for and CANNOT be installed in locations
classified as hazardous in accordance with the National
Electric Code ANSI/NFPA 70. CAUTION: Never enter
pump chamber after sewage or effluent has been in
basin. Sewage water can give off methane, hydrogen
sulfide and other gasses which are highly poisonous.
For this reason, Myers recommends installing the 3MW
series sewage pumps with a quick removal system. The
quick removal system may be a union or Cam-lok
coupling if the pipe or discharge hose is within reach
from the surface, or an SRA-300 rail system type quick
disconnect on deeper installations. See installation
drawings for suggested installation.

The dosing tank or pumping chamber must be
constructed of corrosion resistant materials and must
be capable of withstanding all anticipated internal and
external loads. It also must not allow infiltration or
exfiltration. The tank must also have provisions for
anti -buoyancy. Access holes or covers must be of
adequate size and be accessible from the surface to
allow installation and maintenance of the system.
ACCESS COVERS MUST BE LOCKABLE O HEAVY
ENOUGHTO PREVENT EASY ACCESSTO UNAU-
THORIZED PERSONNEL The pumping chamber
holding capacity should be selected to allow for
emergency conditions.
The discharge pipe must be the same size as the
pump discharge (3 inches) or larger. In order to
ensure sufficient fluid velocity to prevent any residual
solids from collecting in the discharge pipe, it is
recommended that a minium flow of 2 feet per second
be maintained. (46 gpm through 3" pipe). It is
recommended that a PVC or equal pipe is used for
corrosion resistance. A full flow (ball or gate) shut-off
valve must be installed to prevent back flow of
sewage if the pump must be removed for service. A
CHECKVALVE MUST BE INSTALLED ON PRES-
SURE SEWER SYSTEMS and on other systems
where conditions allow to prevent back flow and to
reduce wear on the pump system.
A high water alarm must be installed on a separate
circuit from the pump circuit. The alarm should have
the ability to be tested for proper operation.
SPECIAL INSTRUCTIONS
FORTHREE PHASE PUMPS,
1. F. E. Myers recommends three phase pumps to be
installed by qualified personnel. CAUTION: RISK
OF ELECTRICAL SHOCKI Do not remove cord
and strain relief. DO NOT connect conduit to
pump.
WARNINGI Only qualified persons shall
conduct services and installations of this
pump. The pump must be wired by a qualified
electrician, using an approved starter box and
switching device.
2. Three phase pumps are always installed with
control boxes having magnetic starters with 3-leg
overload protection. DO NOTTRYTO RUN
THREE PHASE PUMPS DIRECTLY ACROSS
THE LINE.
3. To Connect Pump: Run wire from pump to
bottom of control box or appropriate junction box
suitable for enclosing splice connections. A hole
must be cut into the control box for the wires.
With power o control box OFF, connect green
(round) line to ground lug. Connect black (power)
wires to power lead terminals. Note: For a typical
CE style control box, these terminals are M1, M2
and M3. Make sure that all wires are inside
control box and not In a position to be pinched or
shorted when door is closed.
4. Before installing pumps check rotation of
impeller to make sure pump is connected cor-
rectly to magnetic starter. All pump impellers
either single or three phase must turn counter-
clockwise when looking Into pump inlet. To check
for proper rotation lay pump on side so impeller is
visible. Turn on power and start pump using HAND
position of H-O-A switch. Turn on and off fast so
that coast of impeller can be seen. NEVER PUT
HANDS OR FINGERS ONTHE IMPELLER
WHEN POWER IS CONNECTED. Interchange
any two line leads at magnetic starter to change
rotation it incorrect.
POINTSTO CHECK IF PUMP DOES NOT
RUN OR DOES NOT RUN PROPERLY
1. Pump does not run or start when water Is up In.
tank
a. Check for blown fuse or tripped circuit breaker.
b. Check for defective level switch.
c. Where control panel is used be sure H-O-A
switch is in the AUTO position. If it does not
run, turn switch to HAND position and if pump
runs then the trouble is in the automatic electh-
cal system. Have an ELECTRICIAN make
electrical checks.
d. Check for burned out motor. Occasionally
lightning can damage a motor even with light-
ning protection.
e. Where plug-in cords used be sure contact
blades are clean and make good contact. DO
NOT USE PLUG-IN CORDS INSIDE A SUMP
OR WET WELL.
I. Level control ball or weight may be stuck on the
side of basin. Be sure it floats freely.
2. Pump runs but does not deliver flow.
a. Check air lock. Start and stop pump several
times, it this does not help it may be necessary
to loosen a union in the discharge line to relieve
air lock.
b. Check valve may be installed backwards.
Check flow arrow on valve body. Check shut-off
valve. It maybe closed.
c. Check vertical elevation. It may be higher than
pump can develop (see pump curve).
d. Pump inlet may be plugged. Remove pump to
check.
23=A397 12
CAUTION: ALWAYS UNPLUG POWER CORDS OR
TURN OFF ALL MAIN AND BRANCH CIRCUIT
BREAKERS BEFORE DOING ANY WORK ONTHE
PUMP. If control panel is remote from pump, discon-
nect lead wires to motor so that no one can turn the
circuit breaker back on. If motor is three phase mark
the leads so they can be replaced in the same order.

36" DIAMETER SIMPLEX UNION SYSTEM 3MW 1 — 3 HP
Simplex Junction Box
1-1/2" Conduit
Req'd.
36" Dia.
Concrete Well
Inlet Hub
(Size as Req'd.)
3MW 1-3 HP
Wastewater
Pump
23e33A3117 13
Bracket, SST
- 36' Dia. Basin Cover
r 3" Union, PVC
Lift -Out Chain
3' Gate Valve,
Brass
3' Discharge Pipe,
PVC
3" Discharge
3" Swing Check
Valve, PVC
High Water "Alarm"
Level
Pump 'On* Level
_ - Pump "Olf" Level

Floes
48" DIAMETER SIMPLEX 3MW 1 — 3 HP
Simplex Control
Panel (Direct Nbunt)
Cord Seal Correctors for
Power and Control Cords
(Not Shave)
Hinged Access Door
Alum. or Steel
Top Rail Support
_.. � (BON to Cover Frame)
LBffng Chain
.
As Fieq d.
As I
3' Gate Valve
Box
L,unction
(Remote Panel)
3" Discharge Piping
Invert
I
Discharge Level
_
Inlet Pipe
113
As
Req'd.
.I
T Discharge Piping
High Mier 'Alann'
Intermediate Rail Support
( Req'd. for each 12' of Basin
'
Depth in Excess of 12'.)
Pump'QW Level
,
3/40 Sch. 40 Pipe Guide Rails
23933A397 14

Float P
60" DIAMETER DUPLEX 3MW 1 - 3 HP
Duplex Control Panel
(Direct Mount)
Cord Seal Connectors for
Power and Control Cords
(Not Shown)
Hinged Access Door
Alum. or Steel
Top Rail Support
(Bolt to Cover Frame)
Lifting Chain
eq'd.
As Rf
3' Gate Valve
Junction Box
(Remote Pajnel):,,
3' Discharge Piping
IrneR
Discharge Level
Inlet Pipe
3" Discharge Piping
Marm.
High Water "Alarm"
Intermediate Rail Support
i.
(1 Rsqd. for each 12'of Basin
Depth in Excess of 12'.)
Lag Pump "On
103W-4"
1 Son. 40 Pipe Guide Rails
Lead Pump'On"
"Off" Level
23833A397 15
3' Check Valve
3"MW 1-3 HP
Wastewater Pump
Lift -Out Ass'y
(SRA-300)

TO REPLACE CAPACITORS ONLY
All of the single phase motors are of the permanent split
capacitor type and have no relays or starting switch. They
have only a starting capacitor that is in the circuit for both
starling and running conditions.
(1) Remove oil fill plug near the top of the motor and pour
the oil out.
(2) Loosen the plug nuts around the cords until they are
loose enough to push the cords down inside of the
motor housing.
(3) . Remove the four bolts from the motor housing and
bump the housing with a plastic hammer to loosen. Lay
the pump on Its side.
(4) Remove the housing carefully to be sure that enough
cord is pushed into the housing to create no tension on
the cords.
(5) Slide motor housing up far enough to expose the
capacitor and to be able to lay the housing down.
(6) Disconnect wiring from capacitor and loosen capacitor
clamp and slide out capacitor. Replace with new capaci-
tor, tighten and re -connect. Wiring diagram is given in
these instructions.
(7) Check all wiring connectors to be sure they are secure.
(8) Be sure tetraseal gasket is in place.
(9) Slide motor housing back onto pump while pulling the
cords out slowly. Assembly the motor housing with the
four bolts.
(10) Re -assemble cord nuts. Be sure washers are seated
and cords are pulled up to stop against the washers.
Tighten nuts securely.
If 1) Put pump upright and refill motor with Myers submers-
ible motor oil. DO NOT OVER FILL WITH OIL. With
pump upright fill oil to bottom of oil fill tapping. Replace
oil fill plug.
(12) Be sure pump turns freely before connecting to power.
Turn pump on side and turn impeller, using screwdriver
in slotted shaft. Plug pump into receptacle to test
operation. Pump must run quiet and free of vibration.
TO REPLACE POWER CORD AND/OR
SEAL LEAK DETECTOR CORD
(1) Remove motor housing as described above. Disconnect
the push -together terminals and remove the ground
screw from the power cord if being replace.
(2) Completely unscrew cord bushing to be replaced and
remove cord assembly from housing. Be sure remaining
terminals are secure on the wires.
(3) Replace with proper cord with fittings. Push cord into
the motor housing far enough to make proper connec-
tions. Re -connect ground wire if replacing power cord
and securely conned the wires correctly. See wiring
diagram in these instructions.
(4) Assemble cords and motor housing as described in
"Capacitor Replacement". Fill with oil as noted and be
sure pump turns freely before connecting to power.
TO REPLACE MOTOR STATOR AND SHELL
(1) Remove motor housing as described above.
(2) Disconnect all leads from power and seal leak cords
and ground wire and set pump upright.
(3) Loosen the four long screws holding the motor and
remove slowly. If unit has seat leak probes be sure to
feed the wires through the slots as the motor is being
removed.
(4) Either remove previous capacitor and clamp from old
motor and assemble onto new stator and shell or
replace with a new capacitor and assemble the two
capacitor leads per wiring diagram.
(5) Position bearing spring washer on top of upper ball
bearing. (For 1 —3 HP as shown In Figurer 1.)
(6) Tighten terminal screws of seal leak probes and feed
wires through the motor slots.
(7) Position the "stator with shell" into place and line up
screws with the bosses and tighten the (4) long screws.
Extend probe wires out through the slots. Lay unit down
in line with motor housing.
(8) Be sure pump turns freely with screwdriver In Impeller
and of shah.
(9) Re -connect all terminals securely per wiring diagram.
(10) Be sure tetraseal gasket is in place.
(11) Reassemble motor housing and fill with oil as noted
above in "capacitor replacement".
NOTE: On three phase motors always check unit for
proper rotation. With pump on Its side apply power by
turning on, then off, quickly. Impeller must turn counter-
clockwise when looking Into the Impeller Inlet. H not,
Interchange any two leads In the control box.
23833A397 16

SHAFT SEAL REPLACEMENT
(1) Remove plugs In motor housing and in seal housing (for
double seal units) and drain oil.
(2) Remove four bolts holding the volute case and bump
with a plastic hammer to loosen and remove case.
(3) Hold impeller and unscrew impeller locking screw. Turn
counterclockwise to loosen.
(4) Pry off seal bellows and ceramic seat. Break seats it
necessary to get out since they must be replaced with
new pane.
(5) NEVER USE OLD SEAL PARTS. USE ONLY COM-
PLETELY NEW SEALS. (Do not use seal spring retainer
plate on single seal pump or lower seal of double seal
pump.)
(6) For single seal pumps or if only replacing the lower
seal of a double seal pump It is not necessary to
disassemble further and on a double seal pump it is not
necessary to drain oil out of the motor housing, just the
seal housing.
(7) On a double seal pump to remove the upper seal,
remove four bogs holding the bottom plate and remove
bottom plate.
(8) Remove snap ring with snap ring pliers. Pry off upper
seal bellows and ceramic seat.
(9) If no water has entered motor housing (check winding
with ohmmeter or megger) wipe seal chambers thor-
oughly and replace seals. (Use seal retainer plate on
upper seal only, do not use on lower seal.) Clean seal
faces and use light oil on face before installing bellows
part of seal.
(10) Check HUVA cup seal in volute case inlet. If worn,
replace.
(11) Be sure tetraseal seal is in position (replace if worn) and
reassemble.
(12) Replace oil in motor housing and seal chamber. Use
only Myers submersible oil.
(13) Be sure pump turns freely before connecting to power.
After connecting, check for proper rotation noted under
"Stator Replacement".
WIRING DIAGRAM
BUCK
'- BLACK
WHITE
GREEN WHITE
GREEN - RED
WHITE
BLACK
BUCK
BROWN rP
-
g _
M l_
o
a
FOR 3450 RPM A 1750 RPM
FOR 3450 RPM
200V or 230V
200V or 575V. 3 PHASE
1 PHASE. P.S.C.
206V, 3 PHASE (1-2 HP)
FOR 1750 RPM
200V OR 575V, 3 PHASE
UCK
BUCK
GREENHITE
GREEN WHITE
RED
D
I
i
U
FOR 3450 RPM
FOR 3450 RPM A 1750 RPM
230V, 3 PHASE
460V Or 575V, 3 PHASE
208V. 3 PHASE (1-2 HP)
FOR 1750 RPM
230V, 3 PHASE
3 PHASE DUAL VOLTAGE WINDING
VOLTAGE
LEADS
BLACK
I WHITE
I RED
TOGETHER
230
1 & 7
1 2 & 8
3 & 9
4&5&6
460
1
2
3
4&7.5&8,6&9
23MA397 17

INCOMING 115V,1 PH
. ON
If TO AUDIBLE OR
1 l s VISUAL ALARM
MOISTURE SENSOR SEAL
PROBE CIRCUIT
Relay - SSAC Inc. #LLC44A5A
Socket - Standard 8-pin plug-in type
It Myers panel is used see below.
Pumps: 3MW10DM2.01, 3MW10DM2.21
3MW 15DM2-01, 3MW 15DM2-21
3MW20DM2.01, 3MW30DM2-21
3MW15DM4-01, 3MW15DM4-21
3MW20DM4-01, 3MW20DM4-21
Required Panel:
CMEP(SL)-21 S,-21 SW,-21 D, or -21 DIN
Pumps: 3MW 10DM2-03, 3MW 10DM2.23
3MW15DM2-03, 3MW15DM2-23
3MW20DM2.03, 3MW3001012-23
3MW15DM4-03, 3MW15DM4-23
3MW20DM4-03, 3MW20DM4.23
Required Panel:
CMEP(SL)-23S,-23SW,-230 or -21 DW
Pumps: 3MW10DM2.43
3MW 15DM2-43
3MW20DM2.43
3MW 15DM4-43
3MW20DM4-43
Required Panel:
CMEP(SL)-43S,-43SW,-43D or -43DW
Pumps: 3MW30DM2.21
3MW30DM4.21
Required Panel:
CM W D-30-21 S,-21 SW,-21 D or -21 DIN
Pumps: 3MW30DM2-03
3MW30OM2-23
3MW30DM4-03
3MW30DM4.23
Required Panel:
CMWD-30.23S,-23SW,-23D or -23DW
Pumps: 3MW30DM2.43
3MW30DM4.43
Required Panel:
CMWD-30.43S,-43SW,-43D or 43DW
3MW DIMIaNSIONS FOR 3450 RPM
20,
• Height for Double Beal UnNi
23MU397 18
32
1)

3MW DIMENSIONS FOR 1750 RPM
11
a
r
22
3MW PERFORMANCE CURVE FOR 3450RPM .Wghlfor Double Seal Unhe
CMMT' MLLOM rill ISIVIi
i
3MW PERFORMANCE CURVE FOR 1750 RPM
cuaearr arena m mart
C""M llu Wren IoxuR
23833A397 19
S
s

m0tdo DATA CHANT
V61NOING
RESISTANCE
IN OHMS
ART =10
BR ,
WIN BON.
MAIN
ORPU LE
LOEKED
STACK
BLACKTO
WHITE TO
AAk1
ROTOR
., ,BLACK
H.P.
PE
SED
YOLTS
PHASE..
HEIGHT.
.. W11r1E,....
.
TO REP-30,
.RED ...
AM?$_
,.,.A61.P$-.
1
3450
208
1
2.3/4
2.2
11.5
-
10.3
21.0
1
3450
230
1
2.314
2.9
15.0
-
9.3
19.0
1
3450
208
3
2-1/2
5.3
5.3
5.3
6.6
29.0
1
3450
230
3
2-W
5A
5.3
6.3
6.0
29.0
1
3450
460
3
2-1/2
21.2
21.2
21.2
3.0
14.0
1
3450
575
..3..
2-1/2..
33A
33.1
33.1
23, .
.,_11,$,
1-1/2
3450
208
1
2.3/4
2.1
9.3
-
14.8
39.9
1.12
3450
230
1
2-3/4
1.6
7.4
-
12:8
3JA
'W 2
3450
200"3
2.3/4
4.5
4.5
4.5
7.7
30.0
1-12
*6
230
3
2-3/4
. 4.5
4.5
4.5
7.b
30.0
1-12
3450
460
8
244
18.0
i6.0
18.0
3.5
15.0
1-12
1 3450
1 575-
3
2-3/4
28.0
, 28.0,
26.0
2.8
12:0
2
3450
208
1
2-314
2J
9.3
-
15.3
3.9
2
345D
230
1
2.3/4
i.6
7.4
-
13.1
33.4
2
3450
208
3
2.314
4.5
4.5
4.5
8.5
30A
2
3450
230
3
23/4
4.5
4.5
4.5
7.7
30.0
2
3450
460
3
2.314
18.0
18.0
18:0
3.9
15.0
2
3450
575
3
2-3/4
28.0-
28.0
28.0
3.1
12.0
3
3450
230
1
3
1.43
1.94
-
18.0
63.0
3
3450
208
3
2.12
2.3
2.3
2.3
10.4
53.0
3
3450
230
3
2.12
2.6
2.6
2.6
9.0
46.0
3
3450
460
3
2-1/2
10.4
16.4
10.4
4.5
23.0
3
3450..
575. _
....-3 -...
...2c12......
_13.1 ..-........,13A--
..
.. 13.1 ,-,-.....3.8,....
, 18A.. .
1-12
1750.
200
1
2-3/4
-
13.8
25.2
1.12
1750
230
1
2.3/4
2.2
14.9
-
12.0
24.0
1.12
1750
200
3
2-12
2.7
2.7
2.7
9.8
36.8
1.12
1750
230
3
2.12
3.1
3.1
3.1
8.6
32.0
1.12
1760
460
3
2.12
12.5
12.6
12.5
4.$
16.0
1-M
1750
575
. 3
2-12
15.6
15.6
15.6
3.4
12.8
2
17W
200
1
2.W4
-
15.5
25.2
2
1750
230
1
244
2.2
14.9
-
13.5
24.0
2
1750
200
3
2.12
2.7
2.7
2.7
10.4
36.8
2
1750
230
3
2-1/2
3.1
'9.1
3A
9.0
32.0
2
1750
460
3
2-12
12.5
12.5
12.5
4.5
16.0
2
1750
575
.. 3.
2-12.
15.6.
._ 15.16
15.6
.3.6
12.8
3
1760
230
1
3
1.96
5.55
-
20.0
45.5
3
1750
200
3
3
1.9
1.9
1.9
15.0
48.3
3
1750
230
3
9
2.2
2.2
2.2
13.5
42.0
3
1750
460
3
3
8.8
8.8
8.8
6.8
21.0
3
1760.
_.575.......
.... 3..-
1-.-3-_.........11.0._....
,..11.0.... .
.11.0.. ...
5.5
1 .16.8
23833A397 20

Scenario: Base
Title: Harbor Walk 6n Project Engineer: nlauretta
q:\...\stormcad\070813storm drainage.stm Stewart Engineering StormCAD v5.6 [05.06.012.001
0821/07 10:41:33 AM_ ® Bentley Systems, Inc. Haestad Methods Solution Center Watertown, CT 06795 USA [phone] Page 1 of 1

Profile
Scenario: Base
Profile: Main - East
s.nano: Proposed
om e.r.a
..R
Title: Harbor Walk Project Engineer: nlauretta
q:\...\stormcad\070813_storm drainage.stm Stewart Engineering StormCAD v5.6 [05.06.012.00)
08/21/07 10:51:58 AM 0 Bentley Systems, Inc. Haestad Methods Solution Center Watertown, CT 06795 USA [phone] Page 1 of 1

Profile
Scenario: Base
Profile: Main - West
Scenario: Proposed
Label: CB-18 Label: CB-17
Rim:11.50 ft Rim:11.70 It
Sump: 8.40 It Sump: 8,00 ft
a I
Label: P-19
Up. Invert 8.40 It
On. Invert: 8.00 It
L: 76.00 It
0+00 Size:15 inch 1+00
S: 0.005263 ft/ft
Label: CB-19
Rim:11.75 ft
Sump: 7.65 It
Label: P-21
Up. Invert: 8.00 It
On. Invert: 7.65 ft
L: 61.00 ft
Size:15 inch
S: 0.005738 ft/ft
Station (ft)
Label: AD-16
Rim:12.60 It
Sump: 9.50 It
Label: P-18
Up, Invert: 9.50 It
On. Invert: 7.65 It
L: 82.00 ft
Size: 15 inch
S: 0.022561 Wit
2+00
15.00
10.00
' 5.00
3+00
Elevation (ft)
Title: Harbor Walk Project Engineer: nlauretta
q:\...\stormcad\070813 storm drainage.stm Stewart Engineering StormCAO v5.6 [05.06.012+001
08/21/07 10:53:52 AM ®Bentley Systems, Inc. Haestad Methods Solution Center Watertown, CT 06795 USA [phone] Page 1 of 1

Combined Inlet/Pipe Report
Up. Node
Dn. Node
Up. Inlet Area (acres)
Up. Inlet Rat. Coef.
Size
Up. Gr Elev. (fl)
Up. Invert (it)
Up. HGL (it)
L (it)
S
Total Flow (cfs)
Dn. Gr. Elev. (fl)
Dn. Invert (fl)
Dn. HGL (fl)
P-8
CB-8
CB-15
0.22
0.75
15 inch
10.80
7.70
8.63
33
3.33%
0.78
10.70
6.60
8.63
P-9
CB-15
JB-21
0.25
0.75
24 inch
10.70
6.60
8.37
25
0.60%
16.63
12.00
6.45
8.27
P-14
CB-13
JB-14
0.32
0.75
15 inch
11.40
8.30
9.20
128
1.02%
1.14
11.60
7.00
9.16
P-15
JB-14
CB-15
N/A
N/A
24 inch
11.60
7.00
8.96
79
0.51%
14.97
10.70
6.60
8.63
P-20
JB-21
0.2
N/A
N/A
24 inch
12.00
6.45
7.92
5
1.00%
16.63
11.00
6.40
6.40
P-1
CB-1
CB-2
0.45
0.75
15 inch
14.80
11.35
11.85
131
1.37%
1.60
13.20
9.55
11.65
P-2
CB-2
CB-3
0.31
0.75
18 inch
13.20
9.55
11.50
18
0.56%
6.69
13.60
9.45
11.43
P-3
CB-3
CB-4
0.15
0.75
18 inch
13.60
9.45
11.34
160
0.50%
7.22
13.20
8.65
10.58
P-4
CB-4
CB-5
0.33
0.75
21 inch
13.20
8.65
10.49
104
0.53%
8.38
12.30
8.10
10.20
P-5
CB-5
I CB-6
1 0.20
0.75
24 inch
12.30
8.10
10.09
36
0.56%
12.52
1 12.70
7.90
9.98
P-6
CB-6
CB-7
0.29
0.75
24 inch
12.70
7.90
9.90
92
1 0.54%
13.54
12.60
7.40
9.57
P-10
CS-11
CB-12
0.47
0.75
15 inch
12.80
9.70
10.32
18
2.78%
1.68
12.30
9.20
10.39
P-11
CB-12
CB-5
0.50
0.75
15 inch
12.30
9.20
10.35
56
1.96%
3.46
12.30
8.10
10.20
P-12
CB-9
CB-10
0.65
0.75
15 inch
13.80
10.70
12.06
97
0.72%
2.32
13.20
10.00
11.93
P-13
CB-10
CB-2
0.47
0.75
15 inch
13.20
10.00
11.87
56
0.80%
3.99
13.20
9.55
11.65
P-7
CS-7
JB-14
0.09
0.75
24 inch
12.60
7.40
9.45
76
0.53%
13.85
11.60
7.00
9.16
P-18
AD-16
CB-19
0.23
0.75
15 inch
12.60
9.50
9.85
82
2.26%
0.82
11.75
7.65
8.56
P-19
CB-18
CB-17
0.38
0.75
15 inch
11.50
8.40
8.86
76
0.53%
1.36
11.70
8.00
8.75
P-21
CB-17
CB-19
0.40
0.75
15 inch
11.70
8.00
8.67
61
0.57%
2.78
11.75
7.65
8.56
P.22
CB-19
0-1
0.00
1 0.00
15 inch
11.75
7.65
8.45
18
0.56%
1 3.60
11.00
1 7.55
7.55

INFILTRATION BASIN ANALYSIS FILENAME: S:\WQS\INBASIN1070912.oct07.WK1
PROJECT NUMBER: SW8 070912.oct07 DATE: 18-Oct-07
PROJECT NAME: Harbor Walk condominiums at St James Plantation
DRAINAGE BASIN: LBR59 I REVIEWER: mjn R arI
RECEIVING STREAM: ICWW CLASS: SA
Index No.: 15-25 If ORW, is site within the 575' AEC? NO
SITE AREA. 14.53
1 acres
DRAINAGE AREA:
261,447
SF
IMPERVIOUS AREA CALCULATION
PARKING/ASPHALT
CONCRETE
RationaBUILDINGS
100700
q__0
77219
25081OTHER
TOTAL
203000
.04
%IMPERVIOUS, 1=
SOILS INFORMATION
ELEVATION OF SEASONAL HIGH
SOIL TYPE C
REPORTED INFILTRATION RATE
C
SURFACE AREAS / ELEVATIONS
Elev.
Bottom 12
TOP 13
Detention Area 11 5 feet 259
Detention Area 2
VOLUME / DEPTH / DRAWDOWN CALCULATIO
DESIGN STORM, INCHES
DESIGN VOLUME
TOTAL VOLUME AVAILABLE
DEPTH OF RUNOFF
TIME TO DRAWDOWN j
25 YEAR 24 HOUR STORM N/A
Intensity, i = .33 inches / hour
Qr=CiA=
Qp through the bottom of the basin=
10 YEAR 10 MIN HIGH INTENSITY EVENT
Intensity, i = 6.3 inches / hour
Volume for 10 yr. 10 min. event =
COMMENTS
I 0.
loam and murville mucky fine sand
ft
Inc. Volume
lAcc. Volume
;75
0
0
_
i62
2218.5
2218.5
gth
Volume
_
5085
20306
Contech 24' S
an, 7' rise
25391
cubic feet
1.5
24472
CUBIC FEET
2.7,609.5
CUBIC FEET
BE>E39
1.00
FEET
MUST
_
53-5-1
HOURS
MUST BE<120
0.09 CFS
0.00 CFS Must be > Or
1014.37 CF < 27609.5 CF
Volume and drawdown are within Design Requirements.

INFILTRATION BASIN & PUMP SYSTEM ANALYSIS FILENAME: S:%WOSUNBASIN%070912 WKl
UP TO 4 PUMPS IN PARALLEL TO 1 INF. BASIN Page 1 of 2
PROJECT NUMBER: SW8070912 PROJ.NAME: Harbor Walk condo at St James DATE: 21-Sep-07
DRAINAGE BASIN: Lumber REVIEWER: mjn
RECEIVING STREAM: ICWW CLASS: SA; HOW 012 mile
Index No.: If ORW, is sne within the 575' AEC? =N0
SITE AREA: 14.53 acres DRAINAGE AREA 1 44;089 SF DRAINAGE AREA 3: 0 SF
AlA DRAINAGE AREA 2: SF DRAINAGE 4: ���O SF
IMPERVIOUS AREA CALCULATION
BASIN 1
Rational C
BUILDINGSA2:
18.622
0.95
PARKING/ASPHALT, fl2:
17,853
0.95
CONCRETE, 02:
6,170
0.95
OTHER (amendy), ft2:
0
0.95
TOTAL, IQ:
F 42645
Cc
0 93t
Place a-1' here it Rahional
'>
% IMPERVIOUS, 1= 96.74 RV=.05+.009
BASIN 2
Rational C
BUILDINGS
82078
0.95
PARKINGIASPHALT
59366
0.95
CONCRETE
18911
0.95
OTHER
TOTAL, 112: 780355 Cc 0 78:
Placea'1' here8 Rabional
% IMPERVIOUS, I=-;[;� .:73dT7 RV=.05+.009(1) 071:
BASIN 3 Rational C
BUILDINGSA2: 0 0.95
PARKING/ASPHALT, R2: 0 0.95
CONCRETE, R2: 0
OTHER (amendy), R2:
TOTAL, R2 0 Cc= #DlYM.::
Place a'1' here if Rational
%IMPERVIOUS, 1= #DIVl01 RV=.05+.009I I)= 46IVA1r.-;
BASIN 4 Rational C
BUILDINGS 0 0.95
PARKINGIASPHALT 0 0.95
CONCRETE
OTHER 0
TOTAL, ft2 0 Cc= #D1VKt1 .i
Place a 1 here it Rational
%IMPERVIOUS I :<i$OfV(01 RV=.05+.009(1)= #D1Vror:i
ELEVATION OF SEASONAL HIGH WATER TABLE (@inf basin) OFEET MSL
REPORTED INFILTRATION RATE (@inf basin) 3.3 INCHES/HOUR INF. BASIN
or 0.000076 FPS
SURFACE AREAS AND ELEVATIONS
INFILTRATION BASIN
Elev. (it)
Area,
sq 1t
Inc. Volume
Acc. Volume
BOTTOM
12
1875
13
2562
2219
2219
13
2562
0
2219
TOP
13
2562
0
2219
PUMP BASIN 1 (Storage above PP)
pipe provided - not basin
BOTTOM
0
0
0
0
0
0
0
0
PP
0
0
0
0
0
0
0
0
TOP
0
0
5085
5085
PUMP BASIN 2 Storage above PP)
BOTTOM 0
0
PP 0
0
irregular basin
0 0 0
0 0 0
0 0 0
0 0 0
TOP 0 0 20306 20306
STORAGE VOLUME ABOVE PP, BASINS 1, 2, 25391 CF
aeeni�pl e..�zm,mpz even vwmpn B.:m xrwmp.
Note: Sprmd sepeazdy mlo em TOH for u h pump for Len ch, L, of Fora Maio fiom jxo w mfJuariov base, io6-di^
portiom dthc Fmcx Mem shard vita other P®p rum. Um vee a¢c � eM typc d.nlvu, fitsnp, teAraNe.Wmdcv u Imvc�td.
Elev. (it) Area, sq R Inc. Volume Am. Volume
PUMP BASIN 3 (Storage above PP)
BOTTOM 0.0 0 0 0
0.0 0 0 0
PP 0.0 0 0 0
0.0 0 0 0
TOP 0.0 0 0 0
PUMP BASIN 4 Storage above PP)
BOTTOM 0.0 0
0.0 0
PP 0.0 0
0.0 0
TOP 0.0 0

INFILTRATION BASIN & PUMP SYSTEM ANALYSIS
PROJECTNUMBER: SWE070912
FILENAME: SiWQSVNBASIN\070912.WK1
PROJECT NAME: Harbor Walk Condominium DATE: 21-Aug-07 Page 2 of 2
at St James
VOLUME/DEPTH/ DRAWDOWN CALCULATION
DESIGN STORM, INCHES
DESIGN VOLUME
TOT, VOL. AVAILABLE, Infiltration B
DEPTH OF RUNOFF
TIME TO DRAWDOWN INF. BASIN
TIME TO DRAWDOWN DES. VOL. IN INF.
INF-BASIN DRAWDOWN RATE
TOT.AVAIL.VOL., BASINS i<ABO\
SELECTED PUMP RATE
Must Bey
64.3
gpm
GPM
Storage Basin Drawdovm
Days
Hours
PUMP 1
13
2.03
48.66
PUMP 2
Sol
2.02
48.37
PUMP 3
0
#DIV/O!
#DIV/01
PUMP 4
0
#DIV/01
#DIV/01
TOT.PUNIP RATE
63
Drawdown Time at Total Pump Rate Must Ee� 120
Volume Pumped & Infiltrated in First 2 Hours
Tot.Vol. Infiltrated Plus Stored in 2 Hrs. Must be> #DNMI
Pipe Size, in.
Fdct Factor,
2
0.019
3
0.018
4
0.017
6 to 10
0.015
12
0.013
4.39 Hours
011 CF
26402 CF
=EET
=EET
=EET
MUST BE -120
MUST BE e120
this project has two pumps on!
PUMP SYSTEM 3
2
Oi0}9
PUMP SYSTEM 4
2
0 019
Basin 3
Basin 4
Qtv. Item K Eg
Length,
_Qty. Item K Ea Lenoth,ft
45 deg sttl el 0.304
0.0
45 deg el 0.304
00
0 90 tleg sI el 0.57
Do
ed
0 90 peg st0 el 0.57
0.0
St"Teo- Run 0,38
0D
6to Tee- Run 0.38
0.0
Sttl Tee 1.14
0.0
Std Tea 1.14
DO
0 Gate Valve 0.152
0.0
0 Gate VaNii 0.152
DO
0 5. ,; ceer 0.95
Do
0 swap asses 0,95
0D
ReJcee b JL M1
Rtlm b tl'o, R
0 .::::4 0,375
00
0 :_4 0.375
DO
Items ® ReduceNEmargsa Dameter
Items a Rsds o Enlui Diameter
OEmar
skidcn lades, L frwn tawIf 0.017 (tor new du)
Emsr fnclian radar,1, from to 0.017 (fa
rww du.)
0 45aeama 0.272
0.0
0 s5aepmd 0,272
0.0
9aaame 0,51
0.0
90xamtl 0.51
0.0
ies Rut Sa0.34
00
Sm_. T0.34
0.0
sm Tee 1.02
a 0
sm Tee 1.02
0.0
0 Gatevane, 0.136
0.0
0 Gate Verwapen 0,136
0.0
0 Sw:p ehka 0.85
0.0
0 s ,,t Ic 085
00
EQ.LENGTH,Rfor Pipe D 2
0.0
EQ.LENGTH,ft,mr Pipe D+ 2
0.0
for Pipe D: 4 -
0.0
for Pipe D: 41
0.0
ENTER STRAIGHT RUN OF PIPE, ft
ENTER STRAIGHT RUN OF PIPE, it
At Diameter 2 inches=
0
At Diameter 2 inches=
0
At Diameter 4 inches=
0
At Diameter 4 inches=
- -0
TOT.LENGTH,e,lnr Pipe02
:;[;OiO
TOT.LENGTH,It,for Pipe o 2
E:'0:0.
for Pipe D= 4.10:0
for Pipe D= 4
010
HEAD LOSS,ht,for Pipe D= 2
-
0,0
HEAD LOSS,nrw Pipe D= 2
0.0
for Pipe D= 4
0.0
for Pipe D= 4
0.0
.
ENTER REO'D ELEVATION LIFT, ft
0
ENTER REQ'D ELEVATION LIFT, ft
0
PUMP OPERATING POINT:
PUMP OPERATING POINT:

REVD. TOT. DYN. HEAD, TDH, tt F----070 � REQ'D. TOT. DYN. HEAD, TDH, ft
EEB F----E3UMP RATE. gpm 1 01 PUMP RATE, gpm E2:00

SW8 070912 harbor Walk Condos
Subject: SW8 070912 harbor Walk Condos
From: Linda Lewis <[e-mail]>
Date: Wed, 17 Oct 2007 16:50:39 -0400
To: Nick Lauretta <[e-mail]>
Nick:
You've successfully confused me. The infiltration basin detail you sent over on
sheet 303 has a bottom at 12 and an overflow at 13, but all of the previous
calculations and the Design Procedure section in the Executive Summary indicates
that the infiltration basin will be 2' deep. If there's an overflow at 13, the
basin is only 1' deep and doesn't have as much volume as you say it does. Please
either recalculate the infiltration basin's ability to infiltrate the pumped runoff'
volume based on a 1' deep basin or raise the overflow elevation to 14 to achieve
the 2' depth.
Additionally, the existing sheet 303 shows the drainage areas. Perhaps the
infiltration basin details should be labeled as sheet 903 instead? That would keep
the sheet numbering consistent.
Linda
1 of 1 10/17/2007 4:56 PM

LETTER OF TRANSMITTAL
S�
STEWART
TO
FROM
Linda Lewis
Nick Lauretta
NCDENR
Project Engineer Intern
127 Cardinal Drive Ext.
[phone] x 408
Wilmington, NC 28405
DATE SENT VIA
October 16, 2007 Hand Delivery
PROJECT NUMBER PROJECT NAME
V7010 HarborWalk Condominiums SW8 070912
COPIES DATE DESCRIPTION
For approval
®
mment
For retas
Returned for corrections
For your use
Approbmitted
Returned after review
As requested
ILIApproved
as noted
F
Resubmit copies for approval
COMMENTS
Linda,
Please find attached an two copies of sheet C303 for the HarborWalk Condominiums
project.
Thank You,
SIGNED
VV�
Nick Lauretta
COPIED TO
OCT 1 7 2007
ENGINEERING. INNOVATION. SOLUTIONS.T^ 201 N FRONT ST WILMINGTON, NC T 910,796.0145
SUITE 103 28401 F 910.796.0146

LETTER OF TRANSMITTAL
((: Ds)
STEWART TO
0 C T 1 12007
FROM
Linda Lewis
Nick Lauretta
NCDENR
Project Engineer Intern
127 Cardinal Drive Ext.
[phone] x 408
Wilmington, NC 28405
DATE SENT VIA
October 11, 2007 Hand Delivery
PROJECT NUMBER PROJECT NAME
HarborWalk Condominiums SWS 070912
FV7010
COPIES DATE DESCRIPTION
1 10/09 07 Stormwater Plans C300
For approval
®
For review & comment
Returned for corrections
For your use
Approved as submitted
Returned after review
As requested
Approved as noted
Resubmit copies for approval
COMMENTS
Linda,
Please find attached an additional copy of sheet C300 for the HarborWalk
Condominiums project.
Thank You, (•,r 1 1 ��U/
SIGNED .���
Nick Lauretta
COPIED TO
ENGINEERING. INNOVATION. SOLUTIONS.^' 201 N FRONT ST WILMINGTON, NC T 910.796.0145
SUITE 103 28401 F 910.796,0146

Harbour Walk Condos SW8 070912
Subject: Harbour Walk Condos SW8 070912
From: Linda Lewis <[e-mail]>
Date: Thu, 11 Oct 2007 16:18:58 -0400
To: Nick Lauretta <[e-mail]>
Nick:
Sorry, but I completely missed this during the review - I don't see a detail layout
and grading plan for the infiltration basin itself. You've got both the underground
detention structures covered, but nothing for the basin itself.
Linda
I of 1 10/11/2007 4:55 PM

LETTER OF TRANSMITTAL
O
STEWART
V
0
TO
FROM
Linda Lewis
Nick Lauretta
NCDENR
Project Engineer Intern
127 Cardinal Drive Ext.
[phone] x 408
Wilmington, NC 28405
DATE
SENT VIA
October 10, 2007 Hand Delivery
PROJECT NUMBER PROJECT NAME
V7010 HarborWalk Condominiums SW8 070912
COPIES DATE DESCRIPTION
1
10 09 07
Stormwater Plans C100
1
10 09 07
Stormwater Plans C300
For approval
®
For review & comment
Returned for corrections
For your use
Approved as submitted
Returned after review
As requested
Approved as noted
Resubmit copies for approval
COMMENTS
SIGNED
Nick Lauretta
RECEP%7ED
OCT } 0 2007
BY:
COPIED TO
ENGINEERING. INNOVATION. SOLUTIONS.T" 201 N FRONT ST WILMINGTON, NC 1910.796.0145
SUITE 103 28401 F 910.796.0146

INFILTRATION BASIN ANALYSIS
FILENAME: S:\WQS\INBASIN1070912.oct07.WK1
PROJECT NUMBER: SW8 070912.oct07 DATE: 10-Oct-07
PROJECT NAME: Harbor Walk condominiums at St James Plantation
DRAINAGE BASIN: LB_R59 REVIEWER:Imjn & art
RECEIVING STREAM: IC_WWCLASS: SA
Index No.: 15-25 If ORW, is site within the 575' AEC? NO
SITEAREALLL:- 14.53jacres DRAINAGE AREA: 261.447 SF
IMPERVIOUS AREA CALCULATION
Rational C
BUILDINGS _ 160700
PARKING/ASPHALT 77219
CONCRETE _ 25081
OTHER _
TOTAL _ 203000 CI 0.04I
- 1
Place a 1" here if Rational
% IMPERVIOUS, 1= 77.6% _ _ RV= .05+.009 ( 1) = 0.75
SOILS INFORMATION
ELEVATION OF SEASONAL HIGH WATER TABLE J FEET MSL
SOIL TYPE I _ T_ _ Imuckalee loam and murville mucky fine sand
REPORTED INFILTRATION RATE _—I _ _ 3.31INCHES/HOUR
_ 1or 0.000076IFPS I
SURFACE AREAS / ELEVATIONS / VOLUMES i
BOTTOM _ 12 _ 1,875
13 2,562
2218.5' 2218.5
---_ 13 2,562
0 2218.5
_
TOP 14 5,100
3831a 6049.5'
Pipe Diam_ Pipe _ Length
Volume
Detention Area 1 5_ 259
5085
_ _feet
Detention Area 2 _ _
20306 iContech 24' Span, 7' rise
Tota_I piped storage
25391 cubic feet I
VOLUME / DEPTH / DRAWDO_WN C_ALCULATION
_
I
__
DESIGN STORM, INCHES�_
1
1� 1
DESIGN VOLUME I
24472 •.CUBIC FEET
_
TOTAL VOLUME AVAILABLE
3144015 CUBIC FEET 1MUST BE >E39
_
DEPTH OF RUNOFF J
9.02 FEET I 1
_ _
TIME TO DRAWDOWN� _
61.0 HOURS 'MUST BE <120
25 YEAR 24 HOUR STORM N/A
Intensity, i = .33 inches / hour
Qr=CiA=
0.09 CFS
Qp through the bottom of the basin=
0.14 CFS Must be > Or
10 YEAR 10 MIN HIGH INTENSITY EVENT
Intensity, i = 6.3 inches / hour
Volume for 10 yr. 10 min. event =
1014.37 CF < 31440.5 CF
COMMENTS
Volume and drawdown are within Design Requirements.

INFILTRATION BASIN & PUMP SYSTEM ANALYSIS FILENAME: SAVJQSIINBASIN)070912.WK1
UP TO 4 PUMPS IN PARALLEL TO 1 INF. BASIN Page 1 of 2
PROJECT NUMBER: SINS 070912 PROJ.NAME: Harbor Walk condo at St James DATE: 21-Se"7
DRAINAGE BASIN: Lumber REVIEWER: mjn
RECEIVING STREAM: ICWW CLASS: SA; HOW 012 mile
Index No.: If ORW, is site within the 575' AEC? =NO
SITE AREA: 14.53 acres DRAINAGE AREA 1: ':1I11144085 SF DRAINAGE AREA 3: SF
DRAINAGE AREA 2: 217364 SF DRAINAGE AREA 4: 0 SF
IMPERVIOUS AREA CALCULATION
BASIN 1
Rational C
BUILDINGSA2:
18,622
0.95
PARKING/ASPHALT, 02:
17.853
0.95
CONCRETE, 02:
6.170
0.95
OTHER (amenity), 112:
0
0.95
TOTAL, 112:
4
0 93:
Pl2ereifRatioCal
% IMPERVIOUS, 1= 98.74 RV= .05+.009 (I)
BASIN 2
Rational C
BUILDINGS
82078
0.95
PARKING/ASPHALT
59366
0.95
CONCRETE
18911
0.95
OTHER
TOTAL 112: Cc 0.75'
Place a "1" 160355 here it Ratonal
% IMPERVIOUS, I=73:77 RV=D5+.009(I) 47£
ELEVATION OF SEASONAL HIGH WATER TABLE (@inf basin) FEET MSL
REPORTED INFILTRATION RATE (@inf basin) 3.3 INCHES/HOUR
or 0.000076 FPS
SURFACE AREAS AND ELEVATIONS
INFILTRATION BASIN
Elev. (ft)
Area, sq It
Inc. Volume Acc.
Volume
BOTTOM
12
1875
13
2562
2219
2219
13
2562
0
2219
TOP
14
5100
3831
6050
PUMP BASIN 1 (Storage above PP)
pipe provided • not basin
BOTTOM
0
0
0
0
0
0
0
0
PP
0
0
0
0
0
0
0
0
TOP
0
0
5085
5085
BASIN 3 Rational C
BUILDINGSA2: 0 0.95
PARKING/ASPHALT, ft2: 0 0.95
CONCRETE, 02: 0
OTHER (amenity), 02:
TOTAL ft2 C - #D1VH8 .:
Place a "1" here a Rational �'
% IMPERVIOUS, 1= #DIV/01 RV D5-D09 (I)
BASIN 4 Rational C
BUILDINGS 0 0.95
PARKING/ASPRALT 0 0.95
CONCRETE
OTHER 0
TOTAL ft2 Cc #DIVFW
Place a "I" hem if Rational
% IMPERVIOUS I= RV .05+.009 (I) #D1V/01
INF. BASIN
Ll
a®,311a.m31 1 exxri a p,i
Note: Spice4shan seperaraly csl Matra TDH for arch pump for Lcngtq L, of Force Main Gam pump to infiltration basin, including
pm m cf#e Forte Main sba a wi O Fumy nms. User rmsv mr msmba aad type ofvevty fitUng; rcdums/eapavdev u prompted.
Elev. (ft) Area, sq ft Inc. Volume Acc. Volume
PUMP BASIN 3 (Storage above PP)
BOTTOM 0.0 0 0 0
0.0 0 0 0
PP 0.0 0 0 0
0.0 0 0 0
TOP 0.0 0 0 0
PUMP BASIN 2 Storage above PP)
lirTegular
basin
PUMP BASIN 4 Storage above PP)
BOTTOM 0
0
0
0
BOTTOM 0.0 0
0
0
0
0
0.0 0
PP 0
0
0
0
PP 0.0 0
0
0
0
0
0.0 0
TOP 0
0
20306
20306
TOP 0.0 0
STORAGE VOLUME ABOVE PP, BASINS 1, 2, 25391 CF

INFILTRATION BASIN & PUMP SYSTEM ANALYSIS FILENAME: S:\WQSUNBASIN\070912. WK1
PROJECT NUMBER: SWE 060525 PROJECT NAME: Harbor Walk Condominium DATE: 21-Aug-07 Page 2 of 2 `
at St James
VOLUME I DEPTH I DRAWDOWN CALCULATION
DESIGN STORM, INCHES
DESIGN VOLUME
TOT. VOL. AVAILABLE, Infiltration B
DEPTH OF RUNOFF
TIME TO DRAWDOWN INF. BASIN
TIME TO DRAWDOWN DES. VOL. IN INF.
INF.BASIN DRAWDOWN RATE
TOT.AVAIL.VOL, BASINS 1-4 ABOI
SELECTED PUMP RATE
Must Be,
64.3
gpm
GPM
Storage Basin Drawdown
Days
Hours
PUMP 1
13
2.03
48.66
PUMP 2
50
2.02
48.37
PUMP 3
0
#DIV10I
#DIVIOI
PUMP 4
0
#DIV101
#DIV/01
TOT.PUMP RATE
63
Drawdown Time at Total Pump Rate Must be< 120
Volume Pumped & Infiltrated in First 2 Hours
ToLVol. Infiltrated Plus Stored in 2 Hrs. Must be> 1IDIV101
Pipe Size, in.
Frio Factor,
2
0.019
3
0.018
4
0.017
6 to 10
0.015
12
0.013
11.97 Hours
1011 CF
26402 li CF
MUST BE e120
MUST BE <120
PUMP SYSTEM 3
2
;:OU79
PUMP SYSTEM 4
2
0 019
Basin 3
Basin 4
tCjty Item K Eq
Length,
Q�t _. Item K Ed Length,
45 deg sect el 0
0.0
45 deg altl at 0.304
0.0
,57
0 90 deg set el 0.57
0.0
0 90 deg sell el 0.57
0.0
SW Tee -Run 0,38
0.0
SW Tee -Rum 0.38
0.0
Sid Tea 1.14
0.0
Std Tee 1.14
00
& Gate Vahe 0.152
0.0
O Gate Valva-oF 0.152
0.0
.0 swke clteekb 0,95
0.0
0 SY.nd cneckwe 0,95
0,0
Rehtw b M1e. IL
ReJm b m. R
0
0 41 0.375
0.0
0 ::E:A 0.375
DO
Items a Reduced/Enlarged Dameter
Items Q RedumdlEnlaryed Diameter
OEnter
fn=n fadiar, I. Imm ta51 D.D77 (for.6a)
Enter hictlon factor. 1. from tab 0.017 (far new dia.)
0 a5depsidd 0,272
00
O a,m,.d 0,272
0.0
Wdedddd 0.51
0.0
Wdeaemd 0.51
0.0
stdTee. 0.34
0.o
WT»Rat 0,34
0.0
WTee 1.02
0.0
WT. 1.02
0.0
0 Gate V.M,m 0,136
0.0
O Gate vweapen 0.136
0,0
. 0 SChkapet 0,85
0.0
0 sway GWwm 0.85
0.0
EQ.LENGTH,ft,for Pipe D! 2
0.0
EO.LENGTH,ft,for Pipe D= 2
0:0
for Pipe D: 4
0.0
for Pipe D: 4
0.0
ENTER STRAIGHT RUN OF PIPE, ft
ENTER STRAIGHT RUN OF PIPE, fl
At Diameter 2 inches=
0
Al Diameter 2 inches=
0
At Diameter 4 inches=
'0
At Diameter 4 inches=
_0
�
TOT.LENGTH,ft iw Pipe U 2 : O:O
fof Pipe D= 4 DtO
TOT.LENGTH,ft,for Plpe D 2
for Pipe D= 4
-
HEAD LOSS.M.mr Pipe lx 2
0.0
HEAD LOSS m,fer Pips m 2
0.0
I. Pipe D= 4
0.0
for Pipe D= 4
0.0
.
ENTER REQ'D ELEVATION LIFT, ft
i 0
ENTER REQ'D ELEVATION LIFT, it V
_
.0
PUMP OPERATING POINT:
PUMP OPERATING POINT:

nson.TOT. oYw.HEAD, ronn nco�.TOT. oYw.HEAD, nD*n
ma PUMP RATE, spm L_____0]puMpnxrE, oPm

I larbor Walk Conclos SW8 070912
4
W:
Subject: Harbor Walk Condos SW8 070912
From: Linda Lewis <[e-mail]>
Date: Wed, 10 Oct 2007 09:58:26 -0400
To: Nick Lauretta <[e-mail]>
Nick:
I only received 1 copy of sheet C100 with the vicinity map on Oct. 8. Please submit
a second copy of sheet C100. For all new applications, modifications, plan
revisions and responses to addinfo requests, a minimum of 2 copies of the revised
plans are required.
Since the wetlands were flagged by a reputable firm I'm willing to accept the
wetlands delineation without the Corps signature for now. When the Corps does sign
off, please submit the signed map.
I still don't see any drainage easements. Are all of the stormwater structures
located in common areas?
Linda
I of 1 10/10/2007 9:58 AM

Re: HarborWalk Condominiums at St. James Plantation
Subject: Re: HarborWalk Condominiums at St. James Plantation
From: Linda Lewis <[e-mail]>
Date: "RUC, 09 Oct 2007 10:46:17 -0400
To: Nick Lauretta <[e-mail]>
Nick:
The requirement for Express projects is that the wetlands delineation be complete
before issuing the permit. How long will it be before the wetlands are delineated
and signed off on? The Division is not able to issue a conditional permit.
Linda
Nick Lauretta wrote:
Linda,
I have received the request for additional information for
Stormwater Project 4SW8 070912 and I have addressed all comments
except #3 which states "Provide a wetland delineation map signed by
the USAGE or certified authority". In regards to this comment, the
wetlands on the site have been surveyed and the Corps has been out
to review the delineation, but unfortunately, the overall wetland
confirmation has been tied to additional parcels that are in the
process of surveying the meets and bounds.
I am asking if we can keep the stormwater permit within the express
review with the condition that the wetland confirmation letter will
be provided to NCDENR when the final survey has been completed and
confirmed. If necessary, I can provide you with all the revised
information, minus the wetlands delineation, before the requested
return date of October 8, 2007.
Thank you,
Nick Lauretta, EI
Project Engineer Intern
**STEWART**
201 N Front St, Suite 103
Wilmington, NC 28401
**T** 910.796.0145 x408
**F** 910.796.0146
Engineering. Innovation. Solutions.
1 of 1 10/10/2007 9:41 AM

RE: Harbor Walk Condos SW8 070912
Subject: RE: Harbor Walk Condos SW8 070912
From: "Nick Lauretta" <[e-mail]>
Date: Wed, 10 Oct 2007 10:14:21 -0400
To: "Linda Lewis" <[e-mail]>
Linda,
For the most part, the stormwater facilities are located in common
areas. In addition, I provided easements for all of the stormwater
facilities, and I am going to deliver an additional C300 sheet that
shows the easements. The easement layer may have been off on the sheet I
submitted on October 8th. I will get these over to you today.
Thanks,
Nick Lauretta, EI
STEWART
T 910.796.0145 x408
-----Original Message -----
From: Linda Lewis [ mailto: linda. [e-mail]
Sent: Wednesday, October 10, 2007 9:58 AM
To: Nick Lauretta
Subject: Harbor Walk Condos SW8 070912
Nick:
I only received 1 copy of sheet C100 with the vicinity map on Oct. 8.
Please submit a second copy of sheet C100. For all new applications,
modifications, plan revisions and responses to addinfo requests, a
minimum of 2 copies of the revised plans are required.
Since the wetlands were flagged by a reputable firm I'm willing to
accept the wetlands delineation without the Corps signature for now.
When the Corps does sign off, please submit the signed map.
I still don't see any drainage easements. Are all of the stormwater
structures located in common areas?
Linda
I of 1 10/10/2007 11:43 AM

LETTER OF TRANSMITTAL
STEWART
P..FCED
OCT 0 @ Zoo?
TO
FROM
5Gv 0
�=�p24�'-Ss
Linda Lewis
Nick Lauretta
NCDENR
Project Engineer Intern
127 Cardinal Drive Ext.
[phone] x 408
Wilmington, NC 28405
DATE
SENT VIA
October 8, 2007 Hand Delivery
PROJECT NUMBER PROJECT NAME
V7010 HarborWalk Condominiums SW8 070912
COPIES DATE DESCRIPTION
1
10 08/07
Stormwater Plans
1
10 08/07
Stormwater Mana ement Application
1
9/06/07
Infiltration Basin Supplement (Original)
1
10 08/07
Stormwater Impact Analysis
For approval
®
For review & comment
Returned for corrections
For your use
❑
Approved as submitted
Returned after review
As requested
Approved as noted
Resubmit copies for approval
COMMENTS
Linda,
Please find attached all material pertaining to the Request for Additional Material
(SW8 070912) for the stormwater express review for the HarborWalk Condominiums
at St. James Plantation.
SIGNED COPIED TO
Nick Lauretta
ENGINEERING. INNOVATION. SOLUTIONS.T" 201 N FRONT ST WILMINGTON, NC T 910.796.0145
SURE 103 28401 F 910,796.0146

State Stormwater Permit Application Trackinu Cover Sheet
Wilminkton Regional Office
Project Name: ST. JAMES PLANTATION HARBOR WALK
Project Category:
NEW
Project Type:
INFILTRATION SYSTEM
App Accept Date:
61 (17, (07
Application Fee Arch,
Fee Check Number:
37 72
Reviewer Name:
BAKER, CHRIS
Record the following information from BIMS after project has been entered!
Permit Number (BIMS): 6 8o -7 Q I' ( Z
Please update the SW Access System by entering the Permit Number for the project!
Date Entered in Access: 07
Entered in Access By: M (�`RM Rv(rmes
Date Printed: 9/I2/2007 9:34:36 AM

LG
LAND MANAGEMENT GROUP wc.
Environmental Consultants
v
October 8, 2007
TO: Mr. Nick Lauretta
Stewart Engineering
201 N. Front St.
Wilmington, NC 28401
RE: Harbor Walk Site (17A); St. James Plantation: Status of Jurisdictional Determination
Dear Mr. Lauretta:
On June 2111, 2007, Mr. Christian Preziosi of Land Management Group, Inc. met with Ms. Kim Garvey of the
U.S. Army Corps of Engineers to review the extent of jurisdictional wetlands within the Harbor Walk site
(17A), located in St. James Plantation.
Enclosed is a copy of the preliminary wetlands survey for this site. Please give me a call if you have any
questions regarding this project.
Sincerely,
Kim Williams
Environmental Scientist
RECEIVED
OCT 0 e 2007
DWQ
PROJ #
ii wNv.lmgroup.uet • [e-mail] • Phone: [phone] • Fax: [phone]
3805 Wrightsville Ave., Suite 15, Wilmington, NC 28403 • P.O. Box 2522, Wilmington, NC 28402

Combined InifftiPipe Report
Up. Node
Dn. Node
Up. Inlet Area (acres)
Up. Inlet Rat. Coal.
Size
Up. Gr Elev. (ft)
Up. Invert (it)
Up. HGL (ft)
L (it)
S
Total Flow (cls)
Da Gr. Elev. (it)
Dn. Invert (ft)
Din. HGL (ft)
P-8
CB-8
CB-15
0.22
0.75
15 inch
10.80
7.70
8.63
33
3.33%
0.78
10.70
6.60
8-63
P-9
CB-15
JB-21
0.25
0.75
24 inch
10.70
6.60
8.37
25
0.60%
16.63
12.00
6.45
827
P-14
CB-13
JB-14
0.32
0.75
15 inch
11 40
8.30
9.20
128
1.02%
1.14
11.60
7.00
9.16
P-15
JB-14
CB-15
NIA
WA
24 inch
11.60
7.00
8.96
79
0.51%
14.97
10.70
6.60
8.63
P-20
JB-21
0-2
WA
NIA
24 inch
12.00
6.45
7.92
5
1.00%
16.63
11.00
6.40
6.40
P-1
C13-1
CB-2
0.45
0.75
15 inch
14.80
11.35
11.85
131
1.37%
1.60
13.20
9.55
11.65
P-2
CB-2
CB-3
0.31
0.75
18 inch
13.20
9.55
11.50
18
0.56%
6.69
13.60
9.45
11.43
P-3
CB-3
CBd
0.15
0.75
18 inch
13.60
9.45
11.34
160
0.50%
7.22
13.20
8.65
10.58
P-4
CB3
CB-5
0.33
0.75
21 inch
13.20
8.65
10.49
104
0.53%
8.38
12.30
8.10
10.20
P-5
CB-5
I CB-6
1 0.20
0.75
24 inch
1 12.30
8.10
1 10.09
36
1 0.56%
12.52
1 12.70
7.90
9.98
P-6
CB-6
CB-7
0.29
0.75
24 inch
12.70
7.90
9.90
92
0.54%
13.54
12.60
Z40
9.57
P-10
CB-11
CB-12
0.47
0.75
15 inch
12.80
9.70
10.32
18
2.78%
1.68
12.30
9.20
10.39
P-11
CB-12
CB-5
0.50
0.75
15 inch
12.30
9.20
10.35
56
1.96%
3.46
12.30
8.10
10.20
P-12
CB-9
CB-10
0.65
0.75
15 inch
13.80
10.70
12.06
97
0.72%
2.32
13.20
10.00
11.93
P-13
CB-10
CB-2
0.47
0.75
15 inch
13.20
10.00
11.87
56
0.80%
3.99
13.20
9.55
11.65
P-7
CB-7
JB-14
0.09
0.75
24 inch
12.60
7.40
9.45
76
0.53%
13.85
11.60
7.00
9.16
P-18
AD-16
CB-19
0.23
0.75
15 inch
12.60
9.50
9.85
82
2.26%
0.82
11.75
7.65
8.56
P-19
CB-18
CB-17
0.38
0.75
15 inch
11.50
8.40
8.86
76
0.53%
1.36
11.70
8.00
8.75
P-21
CB-17
CB-19
0.40
0.75
15 inch
11.70
8.00
8.67
61
0.57%
2.78
11.75
7.65
8.56
P-22
CB-19
0-1
0.00
1 0.00
15 inch
11.75
7.65
8.45
1 18
0.56%
1 3.60
11.00
1 7.55
7.55
RECEIVED
OCT 0 8 2007
DWQ
PROJ #

3MW SERIES
Submersible Sewage Pumps
1750 & 3450 rpm Models
Safety Instructions,
Installation and Service Manual
Single and double seal. Single and three phase power.
3MW PUMP
23833A397
PROJ #
myem
Pentair Pump Group
CEI tl ED
ocT n R 2007
nwQ

SAFETY WARNINGS
This manual contains important information for the safe
use of this product. Read this manual completely before
using this product and refer to it often for continued
safe product use.
Failure to heed these symbols and follow the
instructions in this manual may result in severe bodlly
[of= or death, or substantial property damage.
DON THROWAWAY OR LOSE THIS MANUAL.
Keep it in a safe place so that you may refer to it often.
® DO NOT wear loose clothing that can become
entangled in the impeller or other moving parts.
® This pump is designed to handle materials which
could cause illness or disease through direct
exposure. Wear adequate protective clothing when
Working on the pump or piping.
® To reduce risk of electftcal shock, pump must be
property grounded in accordance with the National
Electrical Code and all applicable state and local
codes and ordinances.
® ALWAYS disconnect the pump from power source
before handling or servicing.
® Any wiring to be done on pumps should be done by
a qualified electrician.
® NEVER operate a pump with a power cord that has
frayed or brittle insulation.
® NEVER let cords or plug lay in water.
® NEVER handle connected power cords with wet
hands.
WARNING: RISK OF ELECTRICAL SHOCKi Single
phase pumps are supplied with a grounding conductor
and grounding -type attachment plug on the power co.d,
To reduce risk of electrical shock, be certain that it is
connected only to a properly grounded, grounding -type
receptacle. DO NOT cut off ground pin or use an
adapter fitting. DO NOT use an extension cord with this
pump.
Entire plug may be cut off if a control panel is used. All
double seal pumps, all duplex installations and all three
phase pumps require a control box.
Follow all local electrical and safety codes and
ordinances as well as the most recent National Electric
Code (NEC-ANSVNFPA 70).
All pumps have a GROUND WIRE that is connected
to a screw in the metal motor housing. This wire goes to
the receptacle or control box which must be connected
to good outside GROUND such as a metal water pipe
or GROUND STAKE driven at least 8 feet into the
ground.
PUMPS
® Pumps build up heat and pressure during operation.
Allow time for pump to cool before handling or
servicing.
® Only qualified personnel should install, operate or
repair pump.
® Keep clear of suction and discharge openings. QQ
NO insert fingers in pump with power connected.
® This pump MUST NOT be used to pump
flammable, combustible or hazardous liquids.
® Make sure lifting handles are securely fastened
each time before lifting.
® DON lift pump by power cord.
® DO NOT exceed manufacturers recommendation for
maximum performance, as this could cause the
motor to overheat.
it ALWAYS secure the pump In its operating position
so it can not tip over, fall or slide.
® Keep hands and feet away from impeller when
power is connected.
® DON use in swimming pools, decorative
fountains or any installation where human contact
with pumped fluid is common.
® Do not operate pump without safety devices in
place.
IMPORTANTI F.E. Myers is not responsible for losses,
injury or death resulting from a failure to observe these
safety precautions, misuse or abuse of pumps or
equipment.
23833A3e7

TYPICAL SECTION DRAWING FOR 3MW SINGLE SEAL PUMPS 3450 RPM
23933A397

REPAIR PARTS LIST FOR 3450 RPM
Rot.
No.
Description
No.
Req'd
Part
Nrmhbem
1
Nut, Cord Plug, Solid
1
25341A002
1
Cord, Sensor (Double Seal)
1
253390=
IA
Washer, 1/32'Thk.
1
05030A234
1B
Gasket, Rubber
1
05014A193
1C
Washer,3r32'Thk.
1
05030A235
2
Cord, Power
1
See Chart
3
Housing, Motor
1 125327DOOO
3A
Screw, Drive (not shown)
2
05160A004
3B
Nameplate, Blank,l ph
1
25466AOOD
3B
Name late, Blank, 3 ph
1
25499A000
Pk4,1/4'Pipe
1
05022AOOD
4
For3MW Double Seal Sedes
2
5
Ca cftor 1 phon
1
See chart'
6
Clio. CaDacitor
1
See Chart'
7
Washer, Bearing
1
19331AO05
6
Bearing. Ball, Upper
1
08565A013
9
Stator with Shell
1
See Chart'
10
Roorwah6haft
1
See chart'
11
Bearing, Batl, Lower
1
0856SA022
12
Seel, Shaft
1
For3MW Double Seal Series
2�
12A
Rlrhg, Retainkhg
1
12556A033
13
Screw, Cep, 5/16 x 1.1/4
8
19100A012
For 3MW Double Seal Sedes
12
23833A397
Rot.
No.
Description
No.
Req'd
Part
Numbers
Plate, Seal Rearing
1
25367DOD0
14
For3MW Double Seel Series
1
25369DO00
15
Gasket, Tetraseal 7 x 6-3/4 x 118
1
05014At 81
For3MW Double Seal Series
2
16
Screw, Cap, 5116 x 1
4
1910DA029
17
Plate, Lower Seal Double Seal)
1
26368DOOO
18
Oil,Trenslormer
1 gel.
11009A008
For3MW Double Seal Sedes
1.12
n
Connectors(3 phon )
316
IS781A001
19
Screw, ST p 10 x 3/8
2
09822A032
20
Wire Electrode
2
21792A004
20A
Screw, Machine pe x 1/4
2
05434A025
20B
Probe, Seal Leak
2
25343AOOO
21
Impeller
1hp
1
26029BOO2
1.1/2 hp
1
26029B00l
2hp
1
26029BOOO
3hp
1
260298004
22
Washer, Impeller Retainer
1
05030A242
23
Screw, Machine 910 x 3/8
1
06106A042
24
Sealant (Grade 271 Loctile)
1
14550A001
25
Cup, HUVA
1
22e35A009
26
Case, Volute 0750)
1
26423D000

3MW SERIES PUMPS CHART 3450 RPM
Pump
Catalog
Numbers
Pump
Engineer.
Numbers
Q
Cord,
Power
Q
Ca kor
Q
Clip,
Ca eltor
Q
Stator
w/shell
10
Rotor
w/shatt
StYle
3MW10M2-01
26473EODD
253388001
23838A000
20333A004
25484CO12
25487BO11 14
Single Seal
3MW10DM2-01
26474E000
25338B002
254878019
Double Seal
3MW10M2-21
26473EO01
253388001
25484C008
254878014
Single Seal
3MW10DM2-21
26474E001
253388002
25487BD19
Double Seal
3MW10M2-03
26473EO02
25338B003
_
_
_
_
25484CO07
25487BO15
Single Seal
3MW10DM2-03
26474EO02
25487BO20
Double Seal
3MW10M2.23
26473ED03
25487B015
Single Seal
3MW10DM2-23
26474EO03
254878020
Double Seal
3MW10M243
26473E004
2548713015
Single Seal
3MW10DM243
26474EO04
25487BO20
Double Seal
3MW10M2-53
26473E005
25484C008
254878015
Single Seal
3MW10DM2-53
28474E005
25487B020
Double Seal
3MW15M2-01
26473E610
25338B001
23838A000
20333A004
25484C014
25487BO14
Single Seal
3MW15DM2-01
26474EO10
25338BOD2
25487B019
Double Seal
3MW15M2-21
28473E011
253388001
25484CO15
25487BO14
Single Seal
3MW15DM2.21
26474E011
253388002
25487BO19
Double Seal
3MW15M2-03
26473EO12
253388003
_
_
_
—
_
25484CO16
254878016
Single Seal
3MW15DM2-03
26474EO12
25487BO21
Double Seal
3MW15M2.23
26473EO13
25487BO16
Single Seal
3MW15DM2.23
26474EO13
25487BO21
Double Seal
3MW15M243
26473EO14
254878016
Single Seal
3MW15DM243
26474EO14
254878021
Double Seal
3MW15M2-53
26473EO15
25484C017
25487B018
Single Seal
3MW15DM2.53
I 26474EO15
2507BO21
Double Seal
3MW20M2-01
26473EO20
25338B001
23839A000
20333AO06
25484CO14
25487BO14
Single Seal
3MW20DM2.01
26474EO20
253388002
254878019
Double Seal
3MW20M2-21
26473EO21
25338B001
25484CO15
25487B1
Single Seal
3MW20DM2-21
26474E021
253388002
254876O19
Double Seal
3MW20M2-03
26473EO22
253388003
_
_
_
_
25414C018
25487B016
Single Seal
3MW20DM2-03
26474EO22
25487BO21
Double Seal
3MW20M2-23
26473EO23
25487BO16
Single Seal
3MW20DM2.23
26474E 223
25487B021
Double Seal
3MW20M243
28473E024
25487B016
Single Seal
3MW20DM2-43
26474EO24
254878021
Double Seal
3MW20M2.53
28473E025
25484CO17
254878016
Single Seal
3MW20DM2.53
26474EO25
254878021
Double Seal
3MW30M2-21
26473EO30
25338B007
28520A000
20333A004
25484C019
25487B022
Single Seal
3MW30DM2-21
26474E030
25338B009
254878028
Double Seal
3MW30M2-03
26473ED31
2533BB008
—
—
_
—
—
_
25484CO20
254878023
Single Seal
3MW30DM2-03
26474EO31
25487BO29
Double Seal
3MW30M2-23
26473EO32
25484CO21
25487B023
Single Seal
3MW3OM2-433
2647
25487BO29
Double Seal
3MW30M243
28473E033
EEO33
253388003
254878023
Single Seal
3MW30DM2.43
26474EO33
25487BO29
Double Seal
3MW30 A2-53
26473EO34
25484CO22
25487BO23
Single Seel
3MW30DM2.53
26474EO34
25487BO29
Double Seal
23W3 A397

TYPICAL SECTION DRAWING FOR 3MW DOUBLE SEAL PUMPS 1750 RPM
zaea3A3s7

TYPICAL SECTION DRAWING FOR 3MW SINGLE SEAL PUMPS 1750 RPM
W:kTtLk$)i

REPAIR PARTS LIST FOR 1750 RPM
Ref.
No.
Description
No.
Req'd
Part
Numbers
1
Nut, Cord Plug, Solid
1
25341AO02
1
Cord, Sensor Double Seal
1
25339B000
IA_
Washer, 1/32"Thk.
1
05030A234
1S
Gasket, Rubber
1
05014A193
1C
Washer, 3/32"Thk
1
0503GA235
2
Card, Power
1
See Chart
3
Housing, Motor
1
25327D000
3A
Screw, Drive (not shown)
2
0516OA004
3B
Nameplate, Blank, 1 h
1
25488A000
3B
Nameplate, Blank,3 h
1
25499A000
Plug, 1/4" Pipe
1
4
For 3MW Double Seal Series
2��
5
Capacitor 1 ph only)
1
See Chart
6
Clio.Ca acitor
1
See Chart
7
Washer, Bearing
1
1MA005
8
Bearing, Bell, Upper
1
0856W13
9
Statorwith Shell
1
See Chart
10
Rotorwith Shaft
1
See Chart
11
Bearing, Ball, Lower
1
08565AOIS
12
Seal, Shea
1
21576A010
For 3MW Double Seal Sedes
2
12A
FlIng, Retaining
1
1255BADOO
13
Screw, Cap, 418 x 1.114
8
19100A012
Fa3MW Double Seal Series
12
23833A397
Ref.
No.
Description
No.
Req'd
Part
Numbers
Plate, Seal Bearing
1
26430DODO
14
For 3MW Double Seel Series
1
25369D001
15
Gasket, Tetreseal 7 x 6.3/4 x 1/B
1
05014A781
For3MW Double Seal Series
2
16
Screw, Cap, 5/16 x 1
4
1910OA029
17
Plate, Lower Seal Double Seal)
1
26476130DO
18
OII, Transformer
1 gal.
11009A006
For 3MW Double Seal Series
1.12gal.
18A
Connectors(3 ph only)
316
157RIA001
19
Screw, ST e10 x 318
2
09822AO32
20
Wire Electrode
2
21792AO04
20A
Screw, Machine 46 x 1/4
2
05434AO25
20B
Probe, Seal Leak
2
25343AODO
21
In"llar
1
26438C500"
Irnpeller
1
2643BC510
21A
Key
1
0581SA025
22
Retainer, Impeller
1
225BSAOOD
23
Screw, Machine 5116 x 1
1
07597AD17
24
Sealant (Grede 271 LoctBe)
1
1455OA001
25
Cup, HWA
1
22835A010
26
Case, Volute (1750)
1
26437DOOD
If pump was manufactured prior to June 2001 order Indicated
(") number.

3MW SERIES PUMPS CHART 1750 RPM
Q
O
O
O
10
Pump
Pump
Catalog
Blglneering
Cord
Clip
Stator
Rotor
Numbers
Numbers
Power
Capacitor
Capacitor
w/shell
w/shaft'
Ite
3 1501
2647
25484CO23
7
g
3 5 -01
26472
25336
54870 0M—ubWSWJ-
-31AW-2
26520A001
20333A004
64710101
253388007
254840024
25587 124
a
3NMV15DAA4-21
26472 1
25338
Double Sea
3MWT5W03
647
87 25
253388008
25484�25
3 15 -03
6472
7 31
u le a
3 5 -23
26471
2548 25
ge a
-23
6472 03
75-48-79TTr
u
25484CO28
15 43 -
26471
253388003
254878125
Ingle a
3 15 •43
6472
254 7 131
u a
5 -53
26471ED05
25484CO27
7 1 5
e a
3 15
264 4Wff-
_WfWT
25487BI31
DoubleSeal
0 - 1
253381300725484CO23
761
a
3 20 •O1
26472ED10
25338 09
2 7 1 0
ble a
26520A001
20333A004
M4.21
26471
2 7
25484CO24
2 67B124
inge a
3
2647 1
2 9
DU a
3 0 -03
26471 12
253368006
25484�25
7 1 5
atge e
2
5487
u e a
20 •23
26471
7 25
WgIa Seal
0 -23
26472E1 r
25487B131
a
"""
••-
254B4CO26
3 0 •43
25471 14
253388003
2 87B1 W
Tn—gFe a
3 •43
26472
5487 1 ST
MZB!799s
3
2 71
25484CO27
71312
g a
3 0 -53
15
131
a
3 30 - 1
471 W2T
2533813007
87812
mgie a
26520A000
20333A004
254840028
3 0 21
26472 21
25338
25487 132
Double Seal
TNVU0 -03
26471
25338B008
-""
•-•
25484CO29
25487 127
Singlea
3 0 -03
25487 133
u a
3 30 -23
2 71 23
25484C030
54 7 127
ngle a
3 - 3
'51-43
2 72
25487 133
Mu le a
26471 ED24
253388003
87 127
le Sea
-43
28472®24
25487B133
�ubla Seal
3 0
2 71
254840031
25487 12
ng e
3 -53
647
25487 133
a
NOTE: If pump was manufactured prior to June 2001, order rotor as follows:
25487B124 new keyed style (listed above) or
254878024 old threaded style (replace OV with an "0')
23833A397 10

GENERAL DESCRIPTION AND
APPLICATION
Myers 3MW series sewage pumps are available. in
both a single seal and double seal with leak detector.
Also 3MW series sewage pumps are also available in
1750 rpm and 3450 rpm models and are designed for
raw sewage applications. The 3450 rpm series can
pass a 2" spherical solids, and the 1750 rpm series can
pass 2-1/2" spherical solids. These units can also be
used for sump and general dewatering applications
where larger solids capabilities are required.
These pumps are available in single and three phase,
and either in single or double seal with seal leak
detector. All three phase units, all double seal units and
all duplex installations must be used with a control box.
All power cords and seal leak detector cords are
standard 20 feet long.
The 3MW model impellers are enclosed two vane
non -clog style, with 1750 rpm designed to pass 2-1/2"
spherical solids and 3450 rpm designed to pass 2"
spherical solids.
THESE PUMPS ARE NOT FOR USE IN SWIMMING
POOLS OR FOUNTAINS.
AIR VENTING
Upon Initial filling of wet well with water, air may be
trapped in the pump volute. To vent off this air a 5132"
diameter hole is located in volute. BE SURE THIS
VENT HOLE IS CLEAN AFTER ANY SERVICE
WORK ON PUMP.
PACKAGING
Each pump is packed separately in a carton marked
with a catalog number and Myers engineering number.
LEVEL CONTROLS
All pumps must use sealed level control switches for
automatic operation.
Simplex single phase pumps can be made automatic
by attaching MFS controls to the pump or discharge
pipe. These switches have a fixed draw off level of 8 to
10 inches and can be used up to 1 HP. Simplex and
higher horsepower systems may also use on/off pilot
control switches (SMNO) with control box and magnetic
starter. The ALC and AWS-1 controls can be used for
simplex single phase pumps with ratings up to 2 HP. All
duplex systems must use pilot control switches (SMNO)
with control box and magnetic starters.
Plug-in cords can be used on all the single phase
pumps with a single seal (does not have seal leak
detector). This cord has a GROUND pin that plugs into
a grounded receptacle. The grounded receptacle
cannot be used in the wet sump or basin due to
DANGER of current leakage. Sealed junction boxes
must be used In wet sumps or basins to make
connections to motor cord. The AWS-1 control also acts
as a sealed junction box for connecting power cord to
pump cord.
23833A397 11
DOUBLE SEAL PUMPS
All pumps in this series "3MW—D" have two seals with
an oil chamber between the seals so that the seal faces
of both the lower and upper seals are oil lubricated for
longer life and greater protection against water leaking
into motor windings. These double seal units are all
made with a seal leak detector.
The leak detector in the oil seal chamber detects a
water leakage into the chamber and turns on red signal
light in the control panel. Pumps should be removed
from the sump and seals replaced after the seal light
shows in panel. Control panels must be used for pumps
having the seal leak detectors, and seal leak detectors
must be wired as illustrated in these instructions.
DESIGN OF PRESSURE SEWER SYSTEMS
MYERS has available complete computer SOFTWARE
for designing PRESSURE SEWER SYSTEMS. This
gives pipe sizes to use and gives exact flow from any
pump or group of pumps in the system when operating
simultaneously.
This design DISK for IBM or COMPATIBLE computers
is available to engineers on request.
MOTOR TYPE
Motors are 3/4 frame 1 - 3 HP single or three phase, 60
hertz, 1750 & 3450 R.P.M. with class B insulation. All
single phase motors are permanent split -capacitor
(PSC) type with built-in on -winding overload protection
and do not require a start switch or start relay. The
three phase pump motors require a magnetic starter
with 3 leg overload protection. All motors have upper
and lower ball bearings and all are oil -cooled and
lubricated.
CAUTIONI Read these safety warnings first before
Installing, servicing, or operating any pump.
UL AND CSA APPROVAL
Ali pumps have UL and CSA approval pending. Myers
is a SSPMA certified pump member.
INSTALLATION
WARNING: Basin or tank must be vented in accord-
ance with local plumbing codes. These pumps are not
designed for and CANNOT be installed in locations
classified as hazardous in accordance with the National
Electric Code ANSI/NFPA 70. CAUTION: Never enter
pump chamber after sewage or effluent has been in
basin. Sewage water can give off methane, hydrogen
sulfide and other gasses which are highly poisonous.
For this reason, Myers recommends installing the 3MW
series sewage pumps with a quick removal system. The
quick removal system may be a union or Cam-lok
coupling If the pipe or discharge hose is within reach
from the surface, or an SRA-300 rail system type quick
disconnect on deeper Installations. See Installation
drawings for suggested installation.

The dosing tank or pumping chamber must be
constructed of corrosion resistant materials and must
be capable of withstanding all anticipated internal and
external loads. It also must not allow infiltration or
exfiltration. The tank must also have provisions for
anti -buoyancy. Access holes or covers must be of
adequate size and be accessible from the surface to
allow installation and maintenance of the system.
ACCESS COVERS MUST BE LOCKABLE O HEAVY
ENOUGHTO PREVENT EASY ACCESSTO UNAU-
THORIZED PERSONNEL The pumping chamber
holding capacity should be selected to allow for
emergency conditions.
The discharge pipe must be the same size as the
pump discharge (3 inches) or larger. In order to
ensure sufficient fluid velocity to prevent any residual
solids from collecting in the discharge pipe, it is
recommended that a minium flow of 2 feet per second
be maintained. (46 gpm through 3" pipe). It is
recommended that a PVC or equal pipe is used for
corrosion resistance. A full flow (ball or gate) shut-off
valve must be installed to prevent back flow of
sewage if the pump must be removed for service. A
CHECK VALVE MUST BE INSTALLED ON PRES-
SURE SEWER SYSTEMS and on other systems
where conditions allow to prevent back flow and to
reduce wear on the pump system.
A high water alarm must be installed on a separate
circuit from the pump circuit. The alarm should have
the ability to be tested for proper operation.
SPECIAL INSTRUCTIONS
FORTHREE PHASE PUMPS.
1. F. E. Myers recommends three phase pumps to be
installed by qualified personnel. CAUTION: RISK
OF ELECTRICAL SHOCKI Do not remove cord
and strain relief. DO NOT connect conduit to
pump.
WARNINGI Only qualified persons shall
conduct services and Installations of this
pump. The pump must be wired by a qualified
electrician, using an approved starter box and
switching device.
2. Three phase pumps are always installed with
control boxes having magnetic starters with 3-leg
overload protection. DO NOTTRYTO RUN
THREE PHASE PUMPS DIRECTLY ACROSS
THE LINE.
3. To Connect Pump: Run wire from pump to
bottom of control box or appropriate junction box
suitable for enclosing splice connections. A hole
must be cut into the control box for the wires.
With power o control box OFF, connect green
(round) line to ground lug. Connect black (power)
wires to power lead terminals. Note: For a typical
CE style control box, these terminals are Mt, M2
and M3. Make sure that all wires are inside
control box and not in a position to be pinched or
shorted when door is closed.
4. Before installing pumps check rotation of
Impeller to make sure pump is connected cor-
rectly to magnetic starter. All pump impellers
either single or three phase must turn counter-
clockwise when looking Into pump inlet. To check
for proper rotation lay pump on side so impeller is
visible. Turn on power and start pump using HAND
position of H-O-A switch. Turn on and off fast so
that coast of impeller can be seen. NEVER PUT
HANDS OR FINGERS ON THE IMPELLER
WHEN POWER IS CONNECTED. Interchange
any two line leads at magnetic starter to change
rotation it incorrect.
POINTSTO CHECK IF PUMP DOES NOT
RUN OR DOES NOT RUN PROPERLY
1. Pump does not run or start when water Is up in.
tank.
a. Check for blown fuse or tripped circuit breaker.
b. Check for detective level switch.
c. Where control panel is used be sure H-O-A
switch is in the AUTO position. If it does not
run, turn switch to HAND position and if pump
runs then the trouble is in the automatic electri-
cal system. Have an ELECTRICIAN make
electrical checks.
d. Check for burned out motor. Occasionally
lightning can damage a motor even with light-
ning protection.
e. Where plug-in cords used be sure contact
blades are clean and make good contact. DO
NOT USE PLUG-IN CORDS INSIDE A SUMP
OR WET WELL.
L Level control ball or weight may be stuck on the
side of basin. Be sure it floats freely.
2. Pump runs but does not deliver flow.
a. Check air lock. Start and stop pump several
times, it this does not help it may be necessary
to loosen a union in the discharge line to relieve
air lock.
b. Check valve may be installed backwards.
Check flow arrow on valve body. Check shut-off
valve. It maybe closed.
c. Check vertical elevation. It may be higher than
pump can develop (see pump curve).
d. Pump inlet may be plugged. Remove pump to
check.
CAUTION: ALWAYS UNPLUG POWER CORDS OR
TURN OFF ALL MAIN AND BRANCH CIRCUIT
BREAKERS BEFORE DOING ANY WORK ONTHE
PUMP. If control panel is remote from pump, discon-
nect lead wires to motor so that no one can turn the
circuit breaker back on. If motor is three phase mark
the leads so they can be replaced in the same order.
BEFOREDISMANTLING PUMP FOR
REPLACEMENT OF PARTS
_err • •• •:
23833A397 12

36" DIAMETER SIMPLEX UNION SYSTEM 3MW 1 - 3 HP
Bracket, SST
36" Die. Basin Cover
Simplex Junction Box
� 3" Union, PVC
Litt -Out Chain
1-1/2" Conduit
.
3" Gate Valve,
Req'd
*.Brass
36" Dia.
Concrete Well
7.
3" Discharge Pipe,
PVC
As Req'd. Inlet Hub
(Size as Req'd.)
3" Discharge
Invert
3" Swing Check
Valve, PVC
High Water "Alarm"
3MW 1-3 HP
Level
Wastewater
Pump
Pump "On" Level
Pump "Off" Level
23633A397
13

Flow
ALd
I
Inlet Pipe
High Water'Alert
Pump'W Level
Pump'Of ' Level
48" DIAMETER SIMPLEX 3MW 1 - 3 HP
Lifting Chain
v
Simplex Control
Panel (Direct Mount)
Cord Seal Connectors to
Power and Control Cads
(Not Shown)
h
Hinged Access Door
Alum. or Steel
Rail
rt
(B N to Cover Frame)
As Req'd.
3" Gate Valve
3" Discharge Piping
I.- _ DiachaMe Level
3' Discharge Piping
Intermediate Rall Support
( Req'd. for each 12' of Basin
Depth In Excess of 1Z.)
314' Sch. 40 Pipe Guide Rails
3' Check Valve
3" MW 1-3 HP
Wastewater Pump
Lift -Out Ass'y
(SRA-300)
23I133A397 14

60" DIAMETER DUPLEX 3MW 1 - 3 HP
Float A
Duplex Control Panel
(Direct Mount)
Cord Sea] Connectors for
Power and Control Cords
(Not Shown) -If
Utfing Chain ­0(
Req*d.
Junction Box
(Remote Panel)
Invert
Inlet Pipe
High Water
Lag Pump"On*
Lead Pump 'On*
Pumpe*Off"Level
23833A397 15
Hinged Access Door
Alum. or Steel
Top Rail Support
(Boll to Cover Frame)
L3T Gate Valve As I
' Discharge Piping
Discharge Level
3' Discharge Piping
Intermediate Rail Support
(I Req'd. for each 12'of Basin
Depth in Excess of 12'.)
314" Sch. 40 Pipe Guide Rails
3' Check Valve
3* MW "HP
Wastewater Pump
Lift -Out Ass'y
(SRA-300)

TO REPLACE CAPACITORS ONLY
All of the single phase motors are of the permanent split
capacitor type and have no relays or starting switch. They
have only a starting capacitor that Is In the circuit for both
starting and running conditions.
(1) Remove oil fill plug near the top of the motor and pour
the oil out.
(2) Loosen the plug nuts around the cords until they are
loose enough to push the cords down Inside of the
motor housing.
(3) Remove the four bolts from the motor housing and
bump the housing with a plastic hammer to loosen. Lay
the pump on Its side.
(4) Remove the housing carefully to be sure that enough
cord is pushed into the housing to create no tension on
the cords.
(5) Slide motor housing up far enough to expose the
capacitor and to be able to lay the housing down.
(6) Disconnect wiring from capacitor and loosen capacitor
clamp and slide out capacitor. Replace with new capaci-
tor, tighten and re -conned. Wiring diagram is given in
these instructions.
(7) Check all wiring connectors to be sure they are secure.
(8) Be sure tetraseal gasket is in place.
(9) Slide motor housing back onto pump while pulling the
cords out slowly. Assembly the motor housing with the
four bolts.
(10) Re -assemble cord nuts. Be sure washers are seated
and cords are pulled up to stop against the washers.
Tighten nuts securely.
(11) Put pump upright and refill motor with Myers submers-
ible motor oil. DO NOT OVER FILL WITH OIL. With
pump upright fill oil to bottom of oil fill tapping. Replace
oil fill plug.
(12) Be sure pump turns freely before connecting to power.
Turn pump on side and turn impeller, using screwdriver
in slotted shaft. Plug pump into receptacle to test
operation. Pump must run quiet and free of vibration.
TO REPLACE POWER CORD AND/OR
SEAL LEAK DETECTOR CORD
(1) Remove motor housing as described above. Disconnect
the push -together terminals and remove the ground
screw from the power cord if being replace.
(2) Completely unscrew cord bushing to be replaced and
remove cord assembly from housing. Be sure remaining
terminals are secure an the wires.
(3) Replace with proper cord with fittings. Push cord into
the motor housing far enough to make proper connec-
tions. Re -conned ground wire If replacing power cord
and securely conned the wires correctly. See wiring
diagram in these instructions.
(4) Assemble cords and motor housing as described in
'Capacitor Replacement". FIII with oil as noted and be
sure pump turns freely before connecting to power.
TO REPLACE MOTOR STATOR AND SHELL
(1) Remove motor housing as described above.
(2) Disconnect all leads from power and seal leak cords
and ground wire and set pump upright.
(3) Loosen the four long screws holding the motor and
remove slowly. If unit has seal leak probes be sure to
feed the wires through the slots as the motor is being
removed.
(4) Either remove previous capacitor and damp from old
motor and assemble onto new stator and shell or
replace with a new capacitor and assemble the two
capacitor leads per wiring diagram.
(5) Position bearing spring washer on top of upper ball
bearing. (For 1 — 3 HP as shown in Figure 1.)
(6) Tighten terminal screws of seal leak probes and feed
wires through the motor slots.
(7) Position the "stator with shell' into place and line up
screws with the bosses and tighten the (4) long screws.
Extend probe wires out through the slots. Lay unit down
in line with motor housing.
(8) Be sure pump turns freely with screwdriver In Impeller
end of shah.
(9) Reconnect all terminals securely per wiring diagram.
(10) Be sure tetraseal gasket is in place.
(11) Reassemble motor housing and fill with oil as noted
above in "capacitor replacement".
NOTE: On three phase motors always check unit for
proper rotation. With pump on Its side apply power by
turning on, then off, quickly. Impeller must turn counter-
clockwise when looking Into the impeller Inlet. if not,
Interchange any two leads In the control box.
23933A397 16

SHAFT SEAL REPLACEMENT
(1) Remove plugs In motor housing and in seal housing (for
double seal units) and drain oil.
(2) Remove four bolts holding the volute case and bump
with a plastic hammer to loosen and remove case.
(3) Hold Impeller and unscrew impeller locking screw. Turn
counterclockwise to loosen.
(4) Pry off seal bellows and ceramic seat. Break seats If
necessary to get out since they must be replaced with
new parts.
(5) NEVER USE OLD SEAL PARTS. USE ONLY COM-
PLETELY NEW SEALS. (Do not use seal spring retainer
plate on single seal pump or lower seal of double seal
pump.)
(6) For single seal pumps or if only replacing the lower
seal of a double seal pump It Is not necessary to
disassemble further and on a double seal pump it is not
necessary to drain oil out of the motor housing, just the
seal housing.
(7) On a double seal pump to remove the upper seal,
remove four bolts holding the bottom plate and remove
bottom plate.
(8) Remove snap ring with snap ring pliers. Pry off upper
seal bellows and ceramic seat.
(9) If no water has entered motor housing (check winding
with ohmmeter or megger) wipe seal chambers thor-
oughly and replace seals. (Use seal retainer plate on
upper seal only, do not use on lower seal.) Clean seal
faces and use light oil on face before installing bellows
part of seal.
(10) Check HUVA cup seal in volute case inlet. If worn,
replace.
(11) Be sure tetr8se8l seal is in position (replace if worn) and
reassemble.
(12) Replace oil in motor housing and seal chamber. Use
only Myers submersible oil.
(13) Be sure pump turns freely before connecting to power.
After connecting, check for proper rotation noted under
"Stator Replacement".
WIRING DIAGRAM
BLACK BLACK
WHITE
GREEN WHITE GREEN-- - RED
WHITE
BLACK BLACK
Z BROWN =
o -
TT----77
FOR 3450 RPM 1111750 RPM FOR 3450 RPM
200V or 230V 200V or 575V, 3 PHASE
1 PHASE. P.S.C. 20BV.3 PHASE (1-2 HP)
FOR 1750 RPM
200V OR 575V, 3 PHASE
BLACK
GREEN - WHITE
RED
z _ __
O
10
1
FOR 3M RPM
230V. 3 PHASE
208V.3 PHASE (1-2 HP)
FOR 1750 RPM
230V, 3 PHASE
BLACK
WHITE
RED
z
FOR 3450 RPM 5 1750 RPM
460V W 575V. 3 PHASE
3 PHASE DUAL VOLTAGE WINDING
VOLTAGE
LEADS
BLACK
WHITE
I RED
TOGETHER
230
1 187
288
389
4 N
460
1
2
3
487,588,689
23833A397 17

INCOMING 115V,1 PH
TO SM LEAK
PROBES
RI TO AUDIBLE OR
F VISUAL ALARM
MOISTURE SENSOR SEAL
PROBE CIRCUIT
Relay - SSAC Inc. #LLC44A5A
Socket - Standard 8-pin plug-in type
If Myers panel is used see below.
Pumps: 3MW10DM2.01, 3MW10DM2-21
3MW 15DM2-01, 3MW 15DM2-21
3MW20DM2.01, 3MW30DM2-21
3MW15DM4-01, 3MW15DM4-21
3MW20DM4-01, 3MW20DM4.21
Required Patrol:
CMEP(SL)-21 S,-21 SW,-21 D, or -21 OW
Pumps: 3MW10DM2-03, 3MW10DM2-23
3MW15DM2-03, 3MW15DM2-23
3MW20DM2-03, 3MW30DM2-23
3MW15DM4.03, 3MW15DM4-23
3MW20DM4-03, 3MW20DM4.23
Required Panel:
CMEP(SL)-23S,-23SW,-23D or -21 DW
Pumps: 3MW10DM2.43
3MW 15DM2-43
3MW20DM2-43
3MW15DM4-43
3MW20DM4-43
Required Panel:
CMEP(SL)-43S,-43SW,-43D or -43DW
Pumps: 3MW30DM2-21
3MW30DM4-21
Required Panel:
CMWD-30.21 S,-21 SW,-21D or-21 DIN
Pumps: 3MW30DM2.03
3MW30DM2.23
3MW30OM4.03
3MW30DM4-23
Required Panel:
CMWD-30.23S,-23SW,-23D or -23DW
Pumps: 3MW30DM2.43
3MW30DM4.43
Required Panel:
CMWD-30.43S,-43SW,-43D or 43DW
3MW DIMENSIONS FOR 3456 ROM
20-
(
23833A397 18
Height for Double Seal Unite
32
B)

3MW DIMENSIONS FOR 1750 RPM
3MW PERFORMANCE CURVE FOR 3450 RPM
cuecm emm ne eewn
wee"O Rffi nn eewni
Height for Double Seel Units
3MW PERFORMANCE CURVE FOR 1750 RPM
eueeme m MR mv,w
i
Yi
d
I'
weary euame nn w0m
23e33A397 19
e
q

MOTOR DATA CHANT
VkqNDtNG
RES187ANCEI
OHMS
BRA. BRA.
MAIN
_ OR LE
LOCKED
.,
STACK
BLACkTO
WHITETO
iAAX:
ROTOR
K
H.P.
SPEED
VOLTS
PHASE..
HEIGHT,
.. WHITE....
,BLA
TO REP -30.
RED ....
AMPS,..,,
AMP -.
1
3450
208
1
2.3/4
2.2
11.5
-
10.3
21.0
1
3450
230
1
2-3/4
2.6
15:0
-
9.3
19.0
1
3450
208
3
2-1/2
5.3
5.3
5.3
6.6
29.0
1
3450
230
3
2.1/2
5.3
5.3
5.3
6.0
29.0
1
3450
460
3
2.1/2
21.2
21.2
21.2
3.0
14.@
1
3450
575
.3....
2-.m
33A
33.1
33.1
2,5. ,
.,.11,8,
1-1/2
3450
208
1
2.3/4
2.1
9.3
-
14.8
39.9
1-1/2
3450
230
1
2-3/4
1.6
7.4
-
12:8
33.4
1-12
1-.I2
3450
3450
20-
230
3
3
2.344
044
4.5
Az
4.5
�4.5
4:5
4
7.7
7.6
30.0
90.o
1-12
3450
460
0
244
18.0
18.0
18.0
3.5
15.0
1-12
3450
575 _
$ .
2-3/4
28.0
.28.0,
28.0
2.8
i 2.0
2
3450
208
1
2-3/4
2.1
9.3
-
15.3
3.0
2
3450
230
1
2.3/4
1.5
7.4
-
13.1
33.4
2
3450
208
3
2-3/4
4.5
4.5
4.5
8.5
30.0
2
3450
230
3
2-3/4
4.6
4.5
4.5
7.7
30.0
2
3450
460
3
2-314
18.0
18.0
16.6
3.9
15.0
2
1 3450
1 575
3
2.3/4
28.0..
28.0
28.0
3.'1
12.0
3
3450
230
1
3
1.43
1.94
18.0
03.0
3
3450
208
3
2-12
2.3
2.3
2.3
10.4
53.0
3
3450
230
3
2-12
2.6
2.6
2.6
9.0
46.0
3
3460
460
3
2-12
10.4
16.4
10.4
4.5
23.0
3
3450.
575......
. -3 _......2-12....
..A&I .....
,.-... _.13.1_..
...13.1 ....-......3.6......
18.4,...
1-12
1750.
200
1
2-3/4
-
13.6
25.2
1-12
1750
230
1
2-3/4
2.2
14.9
-
12.0
24.0
1-12
1760
200
3
2-12
2.7
2.7
2.7
9.8
36.8
1-12
1750
230
3
2-1/2
3.1
3.1
3.1
8.6
32.6
'.1-12
1750
400
3
2-12
12.5
12.5
19.5
4.3
16.0
1.12
1750
575
3
2.12
15.6
156
15.6
3.4
12.8
2
1760
200
1
2-W4
-
15.6
25.2
2
1750
230
1
244
2.2
14.9
13.5
24.0
2
1750
200
3
2.12
2.1
2.7
2.7
10.4
36.8
2
1750
230
3
2-1/2
3.1
3.1
3.1
9.0
32.0
2
1750
460
3
2.12
12.5
12.5
12.5
4.5
16.0
2
1750
575
3.
2-1/2
15.6
...15.6.
.. 15.6
.3.6
12.8
3
1750
230
1
3
1.36
5.55
-
20.0
45.5
3
1750
260
3
9
1.9
1.9
1.9
15.0
48.3
3
1750
230
3
9
2.2
2.2
2.2
13.5
42.0
3
1750
460
3
3
8.8
8.8
8.8
6.8
21.0
3
1750.
..575......-
.-3_.. .....
_.3_... .......,.11.0....,..
.11.0_... ,..
.11.0.. ...
5.5
1, .16.8
23=W97 ' k

WATEq
�7
Michael P. Iiasley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleen 11, Sullins, Director
Division of Water Quality
October 1. 2007
Bill Schoettelkotte, VP - Multifamily Development
St James Plantation, LLC
P.O. Box 10879
Southport, NC 28461
Subject: Request for Additional Information
Stormwater Project No. SW8 070912
Harbor Walk Condominiums at St. James Plantation
Brunswick County
Dear Mr. Schoettelkotte:
The Wilmington Regional Office of the Division of Water Quality received a Stormwater
Management Permit Application for Harbor Walk Condominiums at St. James Plantation on
September 12, 2007. A preliminary review of that information has determined that the
following information is needed to continue the stormwater review:
1. Please relocate the vicinity map provided as a separate sheet in the calculations, to
the cover sheet of the plans. In case the calculations should become separated from
the file, the vicinity map would still be on the plans.
2. Contrary to your letter, a soil boring map was not provided with the Soils report.
3. Provide a wetlands delineation map signed by the US Army Corps of Engineers or a
certified authority.
4. Please locate each element of the proposed stormwater system in a recorded
access/drainage easement, including the width of each easement.
5. On the infiltration basin supplement form, for purposes of demonstrating that the
total volume provided is sufficient, please include the volume of the underground
storage piping as a separate number out to the side of the blank where the "Basin
Volume Provided" is shown, and label that volume as being provided by the
underground storage piping.
6. Since the underground storage pipes are not individual BMP's themselves, but
rather a part of the one infiltration basin BMP being proposed, please complete only
one column for the drainage area and BUA for the one Infiltration basin on the
application.
7. Please complete page 3 of the supplement form with your printed name, title, mailing
address and phone number in the blanks where requested.
8. Please provide the sediment removal depth in the appropriate blank on page 3 of the
supplement form.
9. Please submit $500 to cover additional reviews of the express application. o
No thCarolina
Al tum/ty
North Carolina Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405 Phone [phone] Customer Service
Wilmington Regional Office Intemet vvrew.nnv:ucnlueli Fax [phone]
An Equal OpportunitylAff rmative Action Employer— 50% Recycled/10% Post Consumer Paper

Bill Schoettelkotte
October 1, 2007
Stormwater Application No. SW8 070912
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 October 8,
2007, or the application will be returned as incomplete. Please note that a substantial
second request for additional information will cause the project to be returned.
Returning the project will end the current Express review and you will be required to
reapply to complete the review of the project in the Express program.
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 construction of any impervious surfaces, other than a construction entrance under
an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and
is subject to enforcement action pursuant to NCGS 143-215.6A.
Please 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,
Mary J. Naugle
Environmental Engineer II
ENB/mjn: S:\WQS\STORMWATER\ADDINFO\2007\070912.sep07
cc: John Jenkins, P.E., Stewart Engineering
Mary J. Naugle
Page 2 of 2

RFIS
Residential Foundation Testing Services, PLLC
St. James Properties, LLC
Post Office Box 10879
Southport, North Carolina 28461
Attention: Mr. Bill Schoettelkotte
July 24, 2007
RECEIVED
SEP 12 2007
Dw@
PROJ #
Reference: Infiltration Testing and Seasonal High Watertable Estimates
Harbor Walk Project
St. James Plantation
Southport, North Carolina
RFTS Job No. 201-07
Dear Mr. Schoettelkotte:
RFTS is pleased to provide testing services during the construction of the Harbor Walk project
located in St. James Plantation near Southport, North Carolina. Specific site grading plans had
not been provided to us at the time this report was prepared.
DESCRIPTION OF ACTIVITIES AND FINDINGS
As requested, our staff visited the site on July 12 and 18, 2007, to perform infiltration testing and
estimate the seasonal high watertable at three locations identified by Mr. Steve Thomas with
Stewart Engineering. The purpose of this testing was to provide soil parameters for stormwater
infiltration design.
Seasonal Hit!h Watcrtable Estimate
Hand auger borings were advanced at three locations to depths ranging from approximately 6 '/2
to 7 feet below the existing ground surface in areas proposed by the civil designer for infiltration
structures. The encountered soils were logged and visually classified by depth and a Munsell Soil
Color Chart was used to determine the hue, value, and chroma of the visually distinct soil layers.
Our soil logs are presented in Table 1.
Soils encountered at Test Locatio In generally consist of interbedded clean fine to medium sands
and sands with a trace to some clay and shell fragments. We believe these are likely dredge
spoils deposited within the area. Comparison of the soils to the Munsell Chart suggests the
presence of a zone of aerated soils approximately 44 to 54 inches below the existing surface,
indicative of seasonal high water level.
1305 3A Carolina Beach Ave N Office: 9ID-458.1377
Carolina Beach, North Carolina 28428 Fax: [phone]

RFTS Job No. 201-07 Page Two
St. James Properties, LLC July 24, 2007
A measurement made 1 hour after augering indicates a depth to standing water in the boreholes
of 64 inches below the existing ground surface at test location 1.
Soils encountered in our boring at Test Location 2 generally consist of interbedded clean fine to
medium sands in the profile. Comparison of the soils to the Munsell Chart suggests the presence
of a zone of aerated soils approximately 32 to 53 inches below the existing surface, indicative of
seasonal high water level. A measurement made 1 hour after augerng indicate a depth to
standing water in the boreholes of 74 inches below the existing ground surface at this test
location.
Soils encountered in our boring at Test Location 3 generally consist of interbedded clean fine to
medium sands with a weakly cemented zone bet vcen 37 to 49 inches below the ground surface
in the profile. Comparison of the soils to the Munsell Chart suggests the presence of a zone of
aerated soils approximately at this depth indicative of seasonal high water level. A measurement
made 1 hour after augering indicate a depth to standing wa rte in the boreholes of 78 inches
below the existing ground surface at this test location.
Infiltration Testing
Infiltration testing was performed using a model 2800 Guelph Permeameter which is a constant -
head device which operates on the Marione siphon principle and is referenced in ASTM D-5126.
The permeameter is used to determine field saturated hydraulic conductivity in centimeters per
second for soil at a specified depth. This testing involves advancing a borehole to the desired
infiltration depth and introducing water at a constant head to determine the steady state flow rate
from which the hydraulic conductivity can be calculated.
No specific test depth was specified by the civil designer, however, infiltration testing was
performed two feet above the seasonal high water level estimates. The results of our
permeameter testing are presented in Table 2.
RECOMMENDATIONS
Based on the results of our field testing and soil classifications at the test locations, it is our
opinion that in order to achieve the steady state flow rates obtained during our testing, the areas
of infiltration galleries or other infiltration structures should be constructed to introduce storm
water at the depths our testing was performed. For purposes of sizing the structures we
recommend an ultimate application rate of 3 3 .17.3, and 10.2 inches per hour for water introduced
at a depth of 20, 8, and 13 inches below the existing grade for test locations 2, and 3,
respectively. "These recommendations should be reviewed by appropriate regulatory authorities
before finalizing the details of any civil design.

RFTS Job No. 201-07
St. James Properties, LLC
CLOSURE
Page Three
July 24, 2007
Please find attached our field data and a sketch showing the approximate test locations. If you
have any questions after reviewing this letter, please do not hesitate to contact us at your
convenience.
Sincerely,
RFTS,PLLC
David L. Winstead
Field Operations Manager
DI.W:SDK/dhv
Attachments
Copy: Mr. Steve Thomas, Stewart Engineering
a'
Steven D. Kelly P.E.
Senior Enginee
iN �rROl''•.,
j�ESS; p��py9'
SEAL
l763a
NCI NEED
DALT0N r•��a

Table I
Munsell Soil Classifications
Harbor Walk Project
St. James Plantation
Southport, North Carolina
RFTS Job No. 201-07
Loc
Soil Description
Hue
Value
Chroma
Depth
Comments
in.
1
Dark Yellowish Brown fine to
10YR
4
4
0-10
—
medium SAND trace organics
Light Yellowish Brown fine to
10YR
6
4
10-22
—
medium SAND, trace shell
fragments
Dark Yellowish Brown fine to
10YR
4
4
22-31
medium SAND with Clay lumps
and shell fragments
Yellowish Brown fine to medium
10YR
5
4
31 A4
SAND, trace clay lumps and
shell fragments
Very Dark Brown fine to medium
10YR
2
2
44-54
SHWT
SAND some Clay
Dark Yellowish Brown fine to
10YR
4
4
54-68
Moist
medium SAND
Very Dark Drown fine to medium
10YR
2
2
68-80
H2O @ 64"
SAND
2
Topsoil
-
-
0-7
Brown fine to medium SAND,
10YR
5
3
7-12
—
trace organics
Dark Yellowish Brown fine to
10YR
3
4
12-16
—
medium SAND, trace organics
Yellow fine to medium SAND
IOYR
7
6
16-32
Slight
modelin
Brownish Yellow fine to medium
1 OYR
6
6
32-53
SHWT
SAND
with
modeling
Brownish Yellow fine to medium
I OYR
6
8
53-65
Slight
SAND
moisture
Olive Yellow fine to medium
MY
6
6
65-75
H2O ® 74^
SANn
Dark Yellowish Brown fine to
10YR
3
6
75-78
Wet
medium SAND
3
Topsoil
-
0-8
Brown fine to medium SAND,
10YR
5
3
8-11
—
trace organ ics
Yellowish Brown fine to medium
10YR
5
4
1 I-13
Clean
SAND

Table 1 - continued
Munsell Soil Classifications
Lac
Soil Description
Hue
Value
Chroma
Depth
Comments
in.
Brownish Yellow fine to medium
lOYR
6
6
13-29
—
SAND
Yellowish Brown fine to medium
IOYR
5
8
29-37
Slight
SAND
streaking
Strong Brown fine to medium
7.5YR
5
8
37-49
SHWT,
SAND
wily
cemented,
slight
moisture
Yellowish Brown fine to medium
I OYR
5
8
49-56
Moist
SAND
Yellow fine to medium SAND
2.5Y
8
6
56.63
Moist
Dark Yellowish Brown fine to
I OYR
4
4
63-83
HZO @ 78"
medium SAND

Table 2
Guelph Permeameter Test Results
Harbor Walk Project
St. James Plantation
Southport, North Carolina
RFTS Job No. 201-07
Location
l
2
3
Depth in.
20
8
13
H, cm
5
5
5
RI cm/min
2.6
2.4
3.2
Ris cm/sec
0.0433
0.040
0.533
112 cm
10
10
10
R cm/min)
1 4.4
1 5.3
1 7.2
Res cm/sec
0.0733
0.0883
1 0.120
Kr,(cm/sec)
2.35x10'
5.I4x10
7.19x10'
0m cm/sec
0.0261
6.87x10
7.21x10"
a cm
0.0902
1 0.7481
0.9972
Definition of Terns
Ri,2 — Established 3 or more constant rate of water level change (cm/min)
Ris, 2s — Calculated steady state flow rates (cm/sec)
H1,2 — Maintained Head of H2O (cm)
Kf, — Calculated field saturated hydraulic conductivity (cm/sec)
0m — Matric flux potential (cm/sec)
a — Alpha parameter
Depth — Depth of well hole (in.)
Location — Test location identification number
Note: Diameter of well is 3.0 cm.

Residential Foundation
INFILTRATION TEST LOCATIONS
MARINA WALK SITE
ST. JAMES PLANTATION
SOUTHPORT, NORTH CAROLINA
JOB NO.201-07
FIGURE 7
DRAWING NOT TO SCALE
DATE- 7/24I07
SKETCH- DLW
REVIEWS SDK
Lseend
9 APPROXIMATE TEST LOCATION
Residential Foundation Testing Services,
1305 3A Carolina Beach Ave N
Carolina Beach. "o.dh Carolina 28428
Office: 910458.1377
For. 910458.5261

St. James Plantation, LLC
P.O. Box 10879
Southport, NC 28461
August 10, 2007
NC Department of Environment and Natural Resources
Division of Water Quality, Stormwater Section
Re: HarborWalk at St. James Plantation
To Whom It May Concern:
RECEIVED
SEP 12 2007
DWQ Z
PROJ # so�o��
&0
This is to confirm that Bill Schoettelkotte, Vice President for Multifamily Development,
has signature authority for submittals, reviews, and other related matters involving stormwater
permitting for the project known as HarborWalk at St. James Plantation.
If additional information is needed, please contact the undersigned.
St. James Plantation, LLC
By:
ohn A. Atkinson, Manager
BRUNS WICK COUNTY — NORTH CAROLINA
certify that the following person personally appeared before me this day,
acknowledging to me that he signed the foregoin document: JOHN A. ATKINSON
Date: 206
OJ lcial Signature of Notar
(Official Seal)
,qt'p °£ Notary Public, North Carolina
j'y r County of 8runswwk
's Dawn 8nkeiA
My Commission Etas 7a 8/22/2009
<d%4j& A)k6e _, Notary Public
Printed or typed name JJ
My commission expires: 40,40t/!
198054_1

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St. James Plantation - Harbor Walk
Located at the corner of St. James Drive and Pinecrest Drive
' Entrance to St James Plantation CID
ttt
Project Location
St James Marina
a. mar o
Isla-o
f .
Southport, NC
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Map Output
Page I of I
http://149.168.101.8/servlet/com.esri.esrimap.Esrimap?ScrviceName=locator&ClientVersion=3.1 &Form... 5/30/2007

Project
Project No
Outlet ID
Outlet flowrate
Pipe diameter
Outlet pipe slope
Full Flow velocity
25
20
15
10
i
5
DESIGN OF RIPRAP OUTLET PROTECTION WORKSMEET
Harbor Walk Date 5-Sep-07
V7010 Designer N. Lauretta
FES-2
1.75 cfs
15 Inches
0.5 percent
1.4 ft/sec
Figure 8.06.b.1
0
0 1 2 3 4 5 6 7 8 9 10
Pipe diameter (111)
Zone from graph above =
1
Outlet pipe diameter
15 in.
Outlet flowrate
1.8 cfs
Outlet velocity
1.4 ft/sec
Material =
Class A
Length =
5.0 ft.
Width =
3.8 ft.
Stone diameter =
3 in.
Thickness =
9 in.
Zone
Material
Diameter
Thickness
Length
Width
1
Class A
3
9
22
22
22
4 x D(o)
3 x D(o)
2
Class B
6
6 x D(o)
3 x D(o)
3
Class I
13
8 x D(o)
3 x D(o)
4
Class I
13
8 x D(o
3 x D(o)
5
Class II
23
27
10 x D(o)
3 x D(o)
6
Class II
23
27
study required
10 x D(o)
3 x D(o)
7
Special
Calculations based on NV DOT method - Pages 8.06.05 through 8.06.06 in NC Erosion Control Manual
Riprap Outlet Protection.xls
9/5/2007