SW6080402_HISTORICAL FILE_20110829

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
DOC TYPE I ❑ CURRENT PERMIT
❑ APPROVED PLANS
rISTORICAL FILE
COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD

August 29, 2011
NCDENR
Division of Water Quality
225 Green Street
Suite 714
Fayetteville, NC 28301
RE: Permit q SW6080402
Compliance Evaluation Inspection
W:'>
RM
Mr. Lawyer:
This is in response to your letter of August 16, 2011 regarding the above inspection. We have notified
our representative in Fayetteville, Mr. Frank McDonald, to look into this matter. I have sent to him the
report and asked that he resolve all of the comments on your report.
As of today, I spoke with Mr. McDonald, and he hadn't yet made it out to the site. He informed me
that he will be going out this week. He will then give me a time frame to make the necessary
corrections.
If we could be given an additional 30 days to have everything in compliance, I would greatly
appreciate it.
Also, if you could update our address for all future correspondence, it is 911 A Scotch Valley Road,
Hollidaysburg, -VA 16648. You can also reach me by phone at 814-696-3759 and speak with my secretary
Mary Ann if you have further questions.
Sin rely,
Joe Grossman

G
Mr. Joseph Crossman
307 Coventry Court
Hollidaysburg, PA 16648
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
June 2, 2008
Coleen H. Sullins, Director
Division of Water Quality
®ENR-FRO
JUN V 4 2008
DWQ
Subject: Stormwater Permit No. SW6080402
West Manchester Industrial Park
High Density Commercial Wet Pond Project
Cumberland County
Dear Mr. Crossman:
The Stormwater Permitting Unit received a complete Stormwater Management Permit
Application for West Manchester Industrial Park on May 28, 2008. 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 and Session Law
2006-246. We are forwarding Permit No. SW6080402, dated June 2, 2008, for the
construction of the subject project.
This permit shall be effective from the date of issuance until June 1, 2018, 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 inspection 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, yyou
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 150E of the North Carolina General Statutes, and filed
with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-
7447. Unless such demands are made this permit shall be final and binding.
This project will be kept on file at the Fayetteville Regional Office. If you have any
questions, or need additional information concerning this matter, please contact Robert
Patterson at [phone], extension 360; or [e-mail].
Sincerely,
for Coleen H. Sullins
cc: Mr. Scott Brown, PE, 4D Site Solutions, Inc, 409 Chicago Dr, Ste 112,
Fayetteville, NC 28306
Fayetteville Regional Office
Central Files nor
SPU Files Nn Carolina
✓vatura//y
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service'
Internet: wow ncwatcro alit o e Location: 512 N. Salisbury St. Raleigh, NC 27604 Fax 919
( ) 733-9612 1-877fi23-6743
An Equal Opportunity/A(f native Action Employer— 50% Recycled/10% Post Consumer Paper

State Stormwater Permit
Permit No.SW6080402
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
Mr. Joseph Grossman
West Manchester Industrial Park
West Manchester Road, Spring Lake, Cumberland County
FOR THE
construction, operation and maintenance of a wet detention pond in compliance with
the provisions of 15A NCAC 2H .1000 and S.L. 2006-246 (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 June 1, 2018, and shall be
subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
1. This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.6 on page 3 of this permit. The stormwater
control has been designed to handle the runoff from 93,209 square feet of
impervious area.
3. The tract will be limited to the amount of built -upon area indicated on page 3 of
this permit, and per approved plans.
4. All stormwater collection and treatment systems must be located in either
dedicated common areas or recorded easements. The final plats for the project
will be recorded showing all such required easements, in accordance with the
approved plans.
5. The runoff from all built -upon area within the permitted drainage area of this
project must be directed into the permitted stormwater control system.
Page 1 of 6

State Stormwater Permit
Permit No.SW6080402
6. The following design criteria have been provided in the wet detention pond and
must be maintained at design condition:
a. Drainage Area, aps: 4.01
Onsite, ft : 174,760
Offsite, ft2: 0
b. Total Impervioys Surfaces, ft2: 93,209
Buildings ft : 48,000
Roads/Parking, ft2: 9,084
Other, ft2. 0
Offsite, ft�: 0
C. Pond Depth, feet: 3.4
d. TSS removal efficiency: 90%
e. Design Storm: 1.0 inch
f. Permanent Pool Elevation, FMS�: 165.80
g. Permitted Surface Area @PP ft : 16,580
h. Permitted Storage Volume, fts: 11,756 at temporary pool
i. Storage Elevation, FMSL: 166.50
j. Controlling Orifice: 2.0"0 pipe
k. Permanent Pool Volumeft3: 56,025
,
I. Forebay Volume, ft3: 11,745
m. Receiving Stream/River Basin: Tank Creek / Cape Fear
n. Stream Index Number: 18-23-27
o. Classification of Water Body: "C"
II. SCHEDULE OF COMPLIANCE
1. The stormwater management system shall be constructed in its entirety,
vegetated and operational for its intended use prior to the construction of any
built -upon surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
3. The permittee shall at all times provide the operation and maintenance
necessary to assure the permitted stormwater system functions.at optimum
efficiency. The approved Operation and Maintenance Plan must be followed in
its entirety and maintenance must occur at the scheduled intervals including, but
not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowin.9 and revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of outlet structure, orifice device, flow
spreader, catch basins and piping.
g. Access to the outlet structure must be available at all times.
4. Records of maintenance activities must be kept and made available upon
request to authorized personnel of DWQ. The records will indicate the date,
activity, name of person performing the work and what actions were taken.
5. The facilities shall be constructed as shown on the approved plans. This permit
shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans and specifications, and other
supporting data.
Page 2 of 6

State Stormwater Permit
Permit No.SW6080402
6. Upon completion of construction, prior to issuance of a Certificate of Occupancy,
and prior to operation of this permitted facility, a certification must be received
from an appropriate designer for the system installed certifying that the permitted
facility has been installed in accordance with this permit, the approved plans and
specifications, and other supporting documentation. Any deviations from the
approved plans and specifications must be noted on the Certification. A
modification may be required for those deviations.
7. 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.
8. Access to the stormwater facilities shall be maintained via appropriate
easements at all times.
9. The permittee shall submit to the Director and shall have received approval for
revised plans, specifications, and calculations prior to construction, for any
modification to the approved plans, including, but not limited to, those listed
below:
a. Any revision to any item shown on the approved plans, including the
stormwater management measures, built -upon area, details, etc.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the
drainage area.
e. Further subdivision, acquisition, lease or sale of all or part of the project
area. The project area is defined as all property owned by the permittee,
for which Sedimentation and Erosion Control Plan approval or a CAMA
Major permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the
approved plan.
10. The permittee shall submit final site layout and grading plans for any permitted
future areas shown on the approved plans, prior to construction.
11. A copy of the approved plans and specifications shall be maintained on file by
the Permittee for a minimum of ten years from the date of the completion of
construction.
12. The Director may notify the permittee when the permitted site does not meet one
or more of the minimum requirements of the permit. Within the time frame
specified in the notice, the permittee shall submit a written time schedule to the
Director for modifying the site to meet minimum requirements. The permittee
shall provide copies of revised plans and certification in writing to the Director
that the changes have been made.
III. GENERAL CONDITIONS
This permit is not transferable except after notice to and approval by the Director.
In the event of a change of ownership, or a name change, the permittee must
submit a completed Name/Ownership Change form, to the Division of Water
Quality signed by both parties, and accompanied by supporting documentation
as listed on page 2 of the form. The project must be in good standing with the
Division. The approval of this request will be considered on its merits and may or
may not be approved.
2. The permittee is responsible for compliance with all permit conditions until such
time as the Division approves the transfer request.
Page 3 of 6

State Stormwater Permit
Permit No.SW6080402
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) having jurisdiction.
5. In the event that the facilities fail to perform satisfactorily, including the creation
of nuisance conditions, the Permittee shall take immediate corrective action,
including those as may be required by this Division, such as the construction of
additional or replacement stormwater management systems.
6. The permittee grants DENR Staff permission to enter the property during normal
business hours for the purpose of inspecting all components of the permitted
stormwater management facility.
7. The permit issued shall continue in force and effect until revoked or terminated.
The permit may be modified, revoked and reissued or terminated for cause. The
filing of a request for a permit modification, revocation and re -issuance or
termination does not stay any permit condition.
8. Unless specified elsewhere, permanent seeding requirements for the stormwater
control must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
9. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
10. The issuance of this permit does not prohibit the Director from reopening and
modifying the permit, revoking and reissuing the permit, or terminating the permit
as allowed by the laws, rules and regulations contained in Session Law 2006-
246, Title 15A NCAC 2H.1000, and NCGS 143-215.1 et.al.
11. The permittee shall notify the Division of any name, ownership or mailing
address changes at least 30 days prior to making such changes.
Permit issued this the 2nd day of June, 2008.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Division of Water Quality
By Authority of the Environmental Management Commission
Page 4 of 6

State Stormwater Permit
Permit No.SW6080402
West Manchester Industrial Park
Stormwater Permit No. SW6080402
Cumberland Countv
Designer's Certification
1, , as a duly registered
in the State of North Carolina, having been authorized to observe (periodically/ weekly/
full time) the construction of the project,
West Manchester Industrial Park
(Project)
for (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
Page 5 of 6

State Stormwater Permit
Permit No.SW6080402
Certification Requirements:
1. The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The 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,
and a forebay.
15. The required system dimensions are provided per the approved plans.
Please submit this Designer's Certification to: Fayetteville Regional Office
Surface Water Protection
225 Green Street
Systel Building Suite 714
Fayetteville, NC 28301-5043
Page 6 of 6

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SoLuTioNS. INC.
May 28, 2008
NCDENR Division of Water Quality
Attn: Robert Patterson
512 N. Salisbury Street
Raleigh, NC 27604
RE: Phase II Storm Water Resubmittal, West Manchester Industrial Park, Cumberland County,
North Carolina
Dear Robert,
We are resubmitting the Phase II Storm Water permitting package for the West Manchester
Industrial Park. The revised copies for the wet pond supplement and O&M forms have been
included along with the calculation for the drawdown time. We have also included 2 revised plan
sheets with a note requiring the roof drains from the buildings to be directed into the wet pond.
I look forward to working with you on this project. If you have any questions or concerns, please
feel free to contact us.
Sincerely,
4D Site Solutions Inc.
wW v/�1�M--
Scott rown
Professional Engineer
Enclosure

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May 22, 2008
NCDENR Division of Water Quality
Attn: Robert Patterson
512 N. Salisbury Street
Raleigh, NC 27604
MAY 2 3 2008
DENR - WATER DUALI
RE: Phase II Storm Water Resubmittal, West Manchester Industrial Park; Cumberland County,
North Carolina
Dear Robert,
We are resubmitting the Phase lI Storm Water permitting package for the West Manchester
Industrial Park. Please find enclosed 2 copies of the revised construction drawings, application and
supplement forms, calculations, and storm water narrative. Below are responses to your review
comments:
l . Drainage area map has been included. 3 ELi=
2. Site grading was revised such that only one wet pond is required. PC > T� RF`✓' �'
3. Calculations have been signed and sealed.
4. Drainage areas and impervious areas have been checked and revised such that all are
consistent throughout the documents.
5. The basin was designed based on a 90% TSS. The discharge of the basin was also relocated
away from the wetlands.
6. Wet pond size has been increased to achieve the required minimum average depth of 3 feet.
7. Outlet device was changed from a skimmer to a permanent orifice with a concrete footing.
8. The volumes and areas have been corrected as noted.
9. Areas have been corrected as noted.
10. The abandoned borrow pit will not be utilized as a BMP. The site was regarded such that all
of the drainage from the impervious areas is directed to the wet pond.
11. A planting plan has been included as noted.
12. A note requiring the permanent liner has been added to the cross section detail.
13. Noted.
I look forward to working with you on this project. If you have any questions or concerns, please
feel free to contact us.
Sincerely,
4D Site Solutions Inc.
Scott town
Professional Engineer
Enclosure

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Michael F. Easley, Governor
VJ r William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleco H. Sullins, Director
Division of Water Quality
May 2, 2008.
Mr. Scott Brown, P.E.
409 Chicago Drive
Suite 112
Fayetteville, NC 28306
Subject: Request for Additional Information
Stormwater Project No. SW6080.402
West Manchester Industrial Park
Cumberland County
Dear Mr. Brown:
The Division of Water Quality Central Office received a Stormwater Management Permit Application for
the subject project on April 28, 2008. A preliminary review of that information has determined that the
application is not complete. The following information is needed to continue the stormwater review:
✓ 1. Please provide a drainage area map that delineates the drainage areas to each of the wet basins.
The total drainage area to the wet detention basin must include the area of the basin itself, and
any offsite flow that will enter the basins. Please revise and submit the plans and calculations
to include this area.
2. A wet detention basin supplement and O&M Agreement must be submitted for each wet basin
proposed. One was only submitted for DA 1.
3. All calculations must be sealed, signed, and dated by a NC professional engineer or landscape
architect.
✓ 4. The drainage areas and impervious areas are not consistent between sheet C-2, form SWU-
101, the supplement form, and the calculations. Please correct this discrepancy with the actual
areas and submit any needed revisions.. -
5. The basin discharge must be evenly distributed across a minimum 30' long vegetated filter
strip unless the basin is designed to remove 90% TSS. Please revise the plans, calculations,
and forms to include a minimum 30' vegetated filter strip, or design the basin for 90% TSS.
Since basin 1 discharges to a wetland, the discharge into the wetland must be non -erosive (<2
ft/s) for the 10-yr, 24-hr storm.
Irv]
Wet detention basins must be designed with a minimum average depth of 3 feet, excluding the
sediment storage. Please modify the basin to provide a minimum average depth of 3 feet as
calculated in the BMP Manual and supplement form (permanent pool volume / permanent pool
surface area).
No hCarolina
Wurally
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet: www ncwaterquality o g Location: 512 N. Salisbury St. Raleigh, NC 27604 Fax [phone]
An Equal Opportunity/Affirmative Action Employer— 50% Recycled110% Post Consumer Paper

t
Mr. Scott Brown, P.E. "it
SW6080402- West Manchester Industrial Park
May 2, 2008
✓7. Please provide details for the weirs and outlet structures for the wet basins. Use of a Faircloth
Skimmer is not allowed as a permanent outlet structure in a permanent wet detention basin. A
low flow orifice must be provided at the permanent pool elevation (PPE) with calculations
provided that show that the minimum required treatment volume draws down over a 2 to
5 day period. The average head must be used for calculating the orifice drawdown time. The
average head to use in the orifice equation is 1/3 of the distance between the permanent pool
elevation (PPE) and the elevation of the next available outlet above the permanent pool.
8. The `Volume provided' on the supplement form under the section `Storage Volume: Non -SR
Waters' should be the temporary pool volume. This is the volume stored between the
permanent pool elevation and the elevation of the next available outlet.
✓ 9. The areas provided on the supplement form for the permanent pool, temporary pool, and top of
shelf do not match the areas provided on page 1 of the calculations. Please correct and
resubmit items revised.
/ 10. The use of an abandoned borrow pit as a wet detention basin is allowable provided the pit is
modified to include the required items (such as a vegetated shelf) of a wet detention basin in
the BMP Manual. Details of the outlet must be provided for the borrow pit; or calculations
showing that there will be zero discharge. Since the borrow pit is located on two properties
that are not both owned by the applicant, provisions must be provided to ensure that the pit
will remain used as a wet basin and that it will be maintained. This would include an
agreement between landowners and a permanent recorded drainage easement prior to issuance
of the permit. Calculations will also need to be provided to account for future build out of the
area draining to the pit from the adjacent landowners property. Also, the offsite drainage area
could be bypassed from the pit. Any offsite area draining to the pit will need to be included in
the supplement form.
✓ 11. A planting plan must be provided for the vegetated shelf and the slopes of the wet basins.
✓12. Since the SHWT is below the PPE and the infiltration rate is above 0.01 in/hr, a permanent
liner must be provided to ensure plant survival on the vegetated shelf.
13. Please note that DWQ discourages the placement of BMPs within the 100-yr floodplain.
There may be local or county regulations that prohibit placing BMPs and/or fill within the
floodplain.
Please note that this request for additional information is in response to a preliminary review. The
requested information should be received by this Office prior to June 2, 2008, or the application will be
returned as incomplete. The return of a project will necessitate resubmittal of all required items, including
the application fee.
If you need additional time to submit the information, please mail or fax your request for a time extension
to the Division at the address and fax number at the bottom of this letter. The request must indicate the
date by which you expect to submit the required information. The Division is allowed 90 days from the
receipt of a completed application to issue the permit.
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] ext. 360.

'Mr. Scott Brown, P.E.
SW6080402 — West Manchester Industrial Park
May 2, 2008
Sincerely,
Robert D. Patterson, P.E.
Environmental Engineer
Stormwater Permitting Unit
cc: Mr. Joseph Crossman, 307 Coventry Court, Hollidaysburg, PA 16648
Fayetteville Regional Office
DWQ Central Files
Stormwater Permitting Unit Files

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SoLuTioN.s. INC.
April 17, 2008
NCDENR Division of Water Quality
Attn: Robert Patterson
512 N. Salisbury Street
Raleigh, NC 27604
RE: Phase 11 Storm Water Submittal, West Manchester Industrial Park, Cumberland County, North
Carolina
Dear Robert,
We are submitting the Phase II Storm Water permitting package for the West Manchester Industrial
Park. Please find enclosed 2 copies of the construction drawings, application and supplement forms,
O&M agreement, calculations, storm water narrative, soils report and a check for $505.00.
I look forward to working with you on this project. If you have any questions or concerns, please
feel free to contact us.
Sincerely,
4D Site Solutions Inc.
Scott Brown
Professional Engineer
Enclosure

i
Mar 26 08 05:54a michael esker 9108224540 p.5
Southeastern Soil & Environmental Associates, Inc.
P.O. Box 9321
Fayetteville, NC 28311
Phone/Fax (910) M-4540
Email meaker38510 aol.com
March 26, 2008
Mr. Scott Brown
4D Site Solutions, Inc.
409 Chicago Drive, Suite 112
Fayetteville, NC 28306
Re: Hydraulic conductivi bihty) analysis & seasonal water table determination
(SHWT) fo bioretent not areas anchester Road Industrial Park Cumberland County,
North Carolina Z
Dear Mr. Brown,
An evaluation of soil properties and hydraulic conductivity (Ksat) has been conducted at
your request on the aforementioned property. The purpose of the investigation was to
determine soil water table depths. In addition, Ksat was to be provided at varying depths
for use with bioretention pond design.
Saturated hydraulic conductivity of the unsaturated zone was measured in a similar
method as described in the Soil Science Society of America Journal, Vol. 53, no 5, Sept. -
Oct. 1989, "A Constant Permeameter for Measuring Saturated Hydraulic Conductivity of
the Vadose Zone" and Comparison of the Glover Solution with the Simultaneous
Equations Approach for Measuring Hydraulic Conductivity."
Soils at this site are most similar to the Wickham soil series (see attached boring log).
Two borings were advanced to 10 feet. Seasonal High Water Table (SHWT) as
determined by evidence of colors of chroma 2 or less (and/or concentrations of high redox
mottles) was encountered at 108 inches below the ground surface in boring " N' (no free
water was noted within 120 inches of the soil surface during the day of testing). SHWT in
boring "B" was encountered at 79 inches below the soil surface (free water was
encountered at 90 inches below the soil surface).
Four compact constant head permeameter (CCHP) tests were conducted at depths ranging
from 2 to 6.5 feet. The two Ksat measurements in the Bt horizon averaged 3.29 cm/hr.
The two Ksat measurements in the C horizon averaged 25.95 cm/hr.
SOIUSrTE EVALUATION • SOIL PHYSICAL ANALYSIS • LAND USE/SUBDIVISION PLANNING
GROUNDWATER DRAINAGEIMOUNDING • SURFACE/SUBSURFACE WASTE TREATMENT SYSTEMS, EVALUATION a DESIGN

War 26 08 05:54a michael Baker 9108224540 p.4
The attached map shows locations of sample points as well as Ksat locations. The
attached chart provides a fist or measured rates at the pond location.
I trust this is the information you require at this time.
Sincerely,
ZU,4,0e54--
Mike Eaker
President
K7l

Mar 26 08 05:53a Michael eaker 9108224540 P•3
i
Southeastern Soil & Environmental Associates, Inc.
P.O. Box 9321
Fayetteville, NC 28311
Phone/Fax [phone]
Email meaker3851 0 ackoom
Permeability Chart - Manchester Road Industrial
Ksat
Ksat
Location
Depth in
cm/hr
inAlr
a A
27
2.92
1.14
A
40
30.67
12.07
B
31
3.66
1.44
B
78
21.24
8.36
SOaISLTE EVALUATION • SOIL PHYSICAL ANALYSIS • LAND USE/SUBDIVISION PLANNING
GROUNDWATER DRAINAGEIMOUNDING • SURFACEISUBSURFACE WASTE TREATMENT SYSTEMS. EVALUATION 8 DESIGN

Mar 26 08 05:53a michael eaker 9100224540 P.2
Southeastern Soil & Environmental Associates, Inc.
P.O. Box 9321
Fayettevi0e, NC 28311
Phone/Fax [phone]
Email meaker3851®aol.com
Typical Profile Description for Borings at Manchester Industrial Park
Cumberland County
This map unit consists of well drained soils that formed in loamy, fluvial sediment on
terraces of tributaries of the Cape Fear River. Slopes range from 1 to 6 percent.
A- 0 to 8 inches; dark brown (10YR 4/3) fine sandy loam; weak fine granular structure
very friable; common fine roots; clear smooth boundary.
Bt - 8 to 36 inches; red (2.5YR 4/6) sandy clay loam; weak fine and medium subangular
blocky structure; friable; common fine roots; gradual wavy boundary.
BC - 15 to 37 inches; yellowish brown (IOYR 5/6) sandy clay loam; weak fine subangular
blocky structure, friable; slightly sticky, slightly plastic; few thin clay films on faces of peds
and pores; common fine roots; gradual wavy boundary.
Bt 3 - 37 to 41 inches; yellowish red (5YR 4/8) sandy loam; weak fine subangular blocky
structure; very friable, gradual wavy boundary.
2CI - 41 to 70 inches; yellowish red (5YR 5/8) loamy sand; weak fine granular structure;
very friable; gradual wavy boundary.
2C2 - 70 to 120 inches; strong brown (7.5YR 5/6) sand; common coarse distinct pale
brown (IOYR 613) mottles; common medium sized pockets of white (1 OYR 8/1)
uncoated sand; single grained; loose.
SOIVSITE EVALUATION • SOIL PHYSICAL ANALYSIS • LAND USE/SUBDIVISION PLANNING
GROUNDWATER DRAINAGEIMOUNDING • SURFACE/SUBSURFACE WASTE TREATMENT SYSTEMS, EVALUATION a DESIGN

Mar 26 08 05:53a michael eaker 9108224540 p.l
P.O. Box 9321
1 1
SJ+I
N5�3a�L
Manchester Industrial - Boring & Ksat Location
® lO .- ao�.w� f FSAT �.nti�TiaN�
US Stele Plane 1983 Scale 1:2,400 MANCHESTER.SSF
North Caroline 3200
TNAD 1983 {Com0 300.0 Ga) N S2a8 PS Pathfintle,001nce
US Stjn,"Feet O-TrimWe.
SOIL/SITE EVALUATION • SOIL PHYSICAL ANALYSIS • LAND USE/SUBDIVISION PLANNING
GROUNDWATER DRAINAGEIMOUNDING • SURFACEISUBSURFACE WASTE TREATMENT SYSTEMS, EVALUATION & DESIGN

4P,5ITF
SOLUTION,5. INC.
LN41NCCRIN4 West Manchester Industrial Park Storm Water Narrative
LAND The site is currently undeveloped. The site is
SUR�[.YINs Y being developed P g with the construction of four
CONSTRUCTION commercial warehouses with the associated parking lots and drive aisles. The site is relatively flat
LAYOUT with natural drainage to an abandoned borrow pit along Manchester Road and to Tank Creek in the
C'PS SCRVICcs rear. The creek is located off of the project site.
LAND
DCVCLOPMCNT Drainage Area #1
Drainage Area #1 is located on the east side of the project. This area drains all of the impervious
surfaces from the new construction. There is no underground storm drainage on the site. This area
was originally going to be treated using bioretention. However, based on the field investigation by
the soil scientist, the water table height prevents the use of bioretention. The storm water will be
treated by the use of a wet pond with a forebay. The wet pond normal water pool will be controlled
by a permanent orfice. The water is transported to the forebay of the wet pond by vegetated swales.
The storm water enters the swales through a flume in the parking lot. The forebay of the wet pond is
created by a rip rap wall that separates the forebay area from the main body of the wet pond. There
is a weir designed at the end of the wet pond to provide a secondary outlet for flows that the orfice
cannot accommodate.
� 5 AL '
02 452
409 CAGO
I)RIVa
EDDRIVC
DUITC 112
FAYCTTCVILLC
MAY2 3 2008
EE
NC 2e506
POONC
910 126-6777
DENR -
Wetlands B Stornmater Branch
FAx
W d26-5777

��� 4D 51TE
50LuTioN.s, INC.
LN41NLLe1N4 I West Manchester Industrial Park Required Storm Volume
LAND
6UPVLYu1C,
CON bTP UCTION Drainage Area #1: 4.01 acres
LAYOUT
4P.7 .7LRVICLJ Impervious Area: 2.14 acres
LAND % Impervious: 53.3%
DLVLLOPMLNT
1 inch Storm Event:
Rv=0.05+0.009 I
Rv= runoff coefficient
I= percent impervious
Rv=0.05+0.009*53.3
= 0.53
For volume that must be controlled:
Volume=3,630*Rd*Rv*A
Volume = 3,630*(1 inch)*(0.53)*4.01 acres = 7,715 cf
A09 COICAC,O
DRIVE
JUITL 112
FAYETTLVILLC
NC 28906
PIJONL
910 426-6777
FAX I
910 426-5777

4D Site Solutions, Inc.
DESIGN REQUIREMENTS:
A. Contain the 1 inch storm
Drainage Area, (DA) = 2.8 acres
24 hr Intensity, (1) _ 0.13 inches/hr
Composite Runoff Coefficient, (C) _> 0.30
Maximum Release Rate, (Q1)=> 0.11 cfs
Drainage Area, (DA) = 4.0 acres
24 hr Intensity, (1) = 0.13 inches/hr
Composite Runoff Coefficient, (C) _> 0.64
Peak Release Rate, (Q,)=> 0.33 cfs
Contour
Elev.
(II)
Contour
Area
(st)
Iner.
Storage
(et)
Accum.
Storage (S)
let)
Stage
(Z)
(R)
In (S)
In (Z)
Z est
?PC
165.80
-
-
-
-
-
TaKr8-
I66.05
18.965
2,371
2,371
0.25
7.77
-......8...............
-1.39
.........0..............
0.24
.i Pt2
166.30
21,355
5,040
7,41.1
0.50
8.91
-0.69
0.53
166,So
166.55
22,352
5,463
12,874
0.75
i 9.46
-0.29
0.78
166.80
23,690
5,755
18,629
1.00
9.83
0.00
1.02
167.05
25,103
6,099
24,728
1.25
10.12 i
0.22
L24
167.30
26,657
6,470
31,198
1S0
i 10.35
0.41
1.47
16750
27,755
5,441
36,640
1.70
i 10.51
0.53
1.64
Regression Output:
b= 1.41
(X Variable Ccet?)
Ks: 18,172
(04." )
Barrel
Number of Bartels =
Dia. of Barrel =
Area of Barrel, (Ab) _
Pipe Length, (L) _
Friction Coetf, (Kp)=
Inv. of Barrel =
Riser
Elev. of Riser Crest =
Rectangular
Length Weir- 24 inches
Total Weir Length=
1
6 inches
0.20 st
?? feet
0.06720
165.80 feet
250.00 feet
Width Weir-
36 inches
10.00 feet
pdn«a: 5aL W8 r:48 AM
Page 1 of 13

41) Site Solutions, Inc.
tf
Orifice in Riser
Dia. of Orifice=
2.00 inches
Number of Orifices =
I
Area of Orifice, (Ab) =
0.02 sf
Orifice COCfffClent (Cd)=
0.60
Inv. of Orifice=
165.80 feet
Width of Spillway (Approx.) _
Weir Coefficient =
Crest Elevation =
10 feet
3.3
166.5 feet
Maximum Release Rate, (Qj)= 0.11 cis
Release Rate, (Q,)= 0.10 cfs
Normal Water Surface Elev. = 165.8 feet
Water Surface Elev. a Outlet (Qj)= 166.51 feet
Peak Inflow, (Qp)=>
0.33 cfs
Time to Peak Calculation:
CN=
80
P= 3.02 in.
Q'=
1.27
in. (depth ofmnofi)
Vol=
12,766
of (vol. ofrunof!)
Time to Peak, (Tp) _>
661.8 minutes
(SCS TR-55)
LAM
O/Op
!
-Q
min
cfs
0.00
0.000
0
0.00
0.01
0.000
6
0.00
0.02
0.001
12
0.00
0.03
0.002
18
0.00
0.04
0.003
24
0.00
0.05
0.005
30
0.00
0.05
0.007
36
0.00
0.06
0.010
42
0.00
0.07
0.013
48
0.00
0.08
0.016
54
0.01
0.09
0.020
60
0.01
0.10
0.024
66
0.01
0.11
0.029
72
0.01
0.12
0.034
78
0.01
0.13
0.039
84
0.01
0.14
0.045
90
0.01
paled: 5/2S =7'48MI
S= 2.50 in.
Page 2 of 13

1) Site Solutions, Inc.
0.15
0.051
96
0.02
0.15
0.057
102
0.02
0.16
0.064
108
0.02
0.17
0.071
114
0.02
0.18
0.079
120
0.03
0.19
0.087
126
0.03
0.20
0.095
132
0.03
0.21
0.104
138
0.03
0.22
0.112
144
0.04
,M.d: am =7. eM Page 3 of 13

=41) Site Solutions, Inc.
0.23
0.121
150
0.04
0.24
0.131
156
0.04
0.24
0.141
162
0.05
0.25
0.151
168
0.05
0.26
0.161
174
0.05
0.27
0.172
180
0.06
0.28
0.183
186
0.06
0.29
0.194
192
0.06
0.30
0.205
198
0.07
0.31
0.217
204
0.07
0.32
0.229
210
0.08
0.33
0.241
216
0.08
0.34
0.253
222
0.08
0.34
0.265
228
0.09
0.35
0.278
234
0.09
0.36
0.291
240
0.10
0.37
0.304
246
0.10
0.38
0.317
252
0.11
0.39
0.330
258
0.11
0.40
0.344
264
0.11
0.41
0.357
270
0.12
0.42
0.371
276
0.12
0.43
0.385
282
0.13
0.44
0.399
288
0.13
0.44
0.413
294
0.14
0.45
0.427
300
0.14
0.46
0.441
306
0.15
0.47
0.455
312
0.15
0.48
0.469
318
0.16
0.49
0.484
324
0.16
0.50
0.498
330
0.17
0.51
0.512
336
0.17
0.52
0.526
342
0.18
0.53
0.541
348
0.18
0.53
0.555
354
0.18
0.54
0.569
360
0.19
0.55
0583
366
0.19
0.56
0.597
372
0.20
0.57
0.611
378
0.20
0.58
0.625
384
0.21
0.59
0.638
390
0.21
0.60
0.652
396
0.22
0.61
0.666
402
0.22
0.62
0.679
409
0.23
0.63
0.692
414
0.23
0.63
0.705
420
0.23
0.64
0.718
426
0.24
0.65
0.731
432
0.24
0.66
0.743
438
0.25
0.67
0.756
444
0.25
0.68
0.768
450
0.26
0.69
0.780
456
0.26
0.70
0.791
462
0.26
0.71
0.803
468
0.27
0.72
0.814
474
0.27
0.73
0.825
480
0.27
0.73
0.836
486
0.28
0.74
0.846
492
0.28
0.75
0.856
498
0.28
0.76
0.866
504
0.29
0.77
0.876
510
0.29
0.78
0.885
516
0.29
0.79
0.894
522
0.30
0.80
0.903
528
0.30
0.81
_
0.911
534
0.30
0.82
0.919
540
0.31
0.83
0.926
546
0SU2oe
pnnted 744M
Page 4 of 13

41) Site Solutions,
Inc.
0.83
0.934
552
0.31
0.84
0.941
559
0.31
0.85
0.947
564
0.32
0.86
0.953
570
0.32
0.87
0.959
576
0.32
0.88
0.965
582
0.32
0.89
0.970
599
0.32
0.90
0.974
594
0.32
0.91
0.979
600
0.33
0.92
0.983
606
0.33
0.92
0.986
612
0.33
0,93
0.989
618
0.33
0.94
0.992
624
0.33
0.95
0.994
630
0.33
0.96
0.996
636
0.33
0.97
0.998
642
0.33
0.98
0.999
648
0.33
0.99
1.000
654
0.33
1.00
1,000
660
0.33
1.01
1.000
666
0.33
1.02
0.999
672
0.33
1.02
0.999
678
0.33
1.03
0.997
684
0.33
1.04
0.996
690
0.33
1.05
0.993
696
0.33
1.06
0.991
702
0.33
1.07
0.988
708
0.33
1.08
0.985
714
0.33
1.09
0.981
720
0.33
1.10
0.977
726
0.33
1.11
0.972
732
0.32
1.12
0.968
738
0.32
1.12
0.962
744
0.32 .
1.13
0.957
750
0.32
1.14
0.951
756
0.32
1.15
0.944
762
0.31
1.16
0.938
768
0.31
1.17
0.931
774
0.31
1.18
0.923
780
0.31
1.19
0.916
786
0.30
1.20
0.907
792
0.30
1.21
0.899
798
0.30
1.21
0.890
804
0.30
1.22
0.881
810
0.29
1.23
0.872
816
0.29
1.24
0.862
822
0.29
1.25
0.853
828
0.28
1.26
0.843
834
0.28
127
0.833
840
0.28
pnmed: sr 0874e AM Page 5 of 13

1.28
0.824
846
0.27
1.29
0.814
852
0.27
1.30
0.804
858
0.27
1.31
0.795
864
0.26
1.31
0.786
870
0.26
1.32
0.777
876
0.26
1.33
0.767
982
0.26
1.34
0.758
888
0.25
1.35
0.750
894
0.25
1.36
0.741
900
0.25
1.37
0.732
906
0.24
1.38
0.724
912
0.24
1.39
0.715
918
0.24
1.40
0.707
924
0.24
1.41
0.698
930
0.23
1.41
0.690
936
0.23
1.42
0.682
942
0.23
1.43
0.674
948
0.22
1.44
0.666
954
0.22
1.45
0.658
960
0.22
1.46
0.651
966
0.22
L47
0.643
972
0.21
1.48
0.636
978
0.21
1.49
0.628
984
0.21
1.50
0.621
990
0.21
1.51
0.613
996
0.20
1.51
0.606
1002
0.20
1.52
0.599
1008
0.20
1.53
0.592
1014
0.20
1.54
0.595
1020
0.19
1.55
0.578
1026
0.19
1.56
0.572
1032
0.19
1.57
0.565
1038
0.19
1.58
0.558
1044
0.19
1.59
0.552
1050
0.18
1.60
0.545
1056
0.18
1.60
0.539
1062
0.18
1.61
0.533
1068
0.18
1.62
0.526
1074
0.18
1.63
0.520
1080
0.17
1.64
0.514
1086
0.17
1.65
0.508
1092
0.17
1.66
0.502
1099
0.17
1.67
0.496
1104
0.17
1.68
0.490
1110
0.16
1.69
0.485
1116
0.16
1.70
0.479
1122
0.16
1.70
0.473
1128
0.16
1.71
0.468
1134
0.16
1.72
0.462
1140
0.15
1.73
0.457
1146
0.15
1.74
0.452
1152
0.15
1.75
0.446
1158
0.15
1.76
0.441
1164
0.15
1.77
0.436
1170
0.15
1.78
0.431
1176
0.14
1.79
0.426
1182
0.14
1.80
0.421
1188
0.14
1.80
0.416
1194
0.14
1.91
0.411
1200
0.14
1.82
0.406
1206
0.14
1.83
0.401
1212
0.13
1.84
0.397
1218
0.13
1.85
0.392
1224
0.13
1.86
0.387
1230
0.13
1.87
0.383
1236
0.13
1.88
0.378
1242
pnntod95I2 OS 7.18 AM
Page 6 of 13

41) Site Solutions, Inc.
1.89
0.374
1248
0.12
1.89
0.370
1254
0.12
1.90
0.365
1260
0.12
1.91
0.361
1266
0.12
1.92
0.357
1272
0.12
1.93
0.353
1278
0.12
1.94
0.348
1284
0.12
L95
0.344
1290
0.11
1.96
0.340
1296
0.11
1.97
0.336
1302
0.11
1.98
0.332
1308
0.11
1.99
0.328
1314
0.11
1.99
0.325
1320
0.11
2.00
0.321
1326
0.11
2.01
0.317
1332
0.11
2.02
0.313
1338
0.10
2.03
0.310
1344
0.10
2.04
0.306
1350
0.10
2.05
0.302
1356
0.10
2.06
0.299
1362
0.10
2.07
0.295
1368
0.10
2.08
0.292
1374
0.10
2.09
0.289
1380
0.10
2.09
0.285
1386
0.09
2.10
0.282
1392
0.09
2.11
0.278
1398
0.09
2.12
0.275
1404
0.09
2.13
0.272
1410
0.09
2.14
0.269
1416
0.09
2.15
0.266
1422
0.09
2.16
0.263
1428
0.09
2.17
0.259
1434
0.09
2.18
0.256
1440
0.09
2.19
0.253
1446
0.08
2.19
0.250
1452
0.08
2.20
0.248
1458
0.08
2.21
0.245
1464
0.08
2.22
0.242
1470
0.08
2.23
0.239
1476
0.08
2.24
0.236
1482
0.08
2.25
0.233
1488
0.08
2.26
0.231
1494
0.08
2.27
0.228
1500
0.08
2.28
0.225
1506
0.07
2.28
0.223
1512
0.07
2.29
0.220
1518
0.07
2.30
0.217
1524
0.07
2.31
0.215
1530
0.07
2.32
0.212
1536
0.07
2.33
0.210
1542
0.07
2.34
0.207
1548
0.07
2.35
0.205
1554
0.07
2.36
0.203
1560
0.07
2.37
0.200
1566
0.07
2.38
0.198
1572
0.07
2.38
0.196
1578
0.07
2.39
0.193
1584
0.06
2.40
0.191
1590
0.06
2.41
0.189
1596
0.06
2.42
0.187
1602
0.06
2.43
0.184
1608
0.06
2.44
0.182
1614
0.06
2.45
0.180
1620
0.06
2.46
0.178
1626
0.06
2.47
0.176
1632
0.06
2.48
0.174
1638
0.06
2.48
0.172
1644
9
pnmea6 ooe rea ara
Page 7 of 13

2.49
0.170
1650
0.06
2.50
0.168
1656
0.06
2.51
0.166
1662
0.06
2.52
0.164
1668
0.05
2.53
0.162
1674
0.05
2.54
0.160
1680
0.05
2.55
0.158
1686
0.05
2.56
0.156
1692
0.05
2.57
0.154
1698
0.05
2.57
0.153
1704
0.05
2.58
0.151
1710
0.05
2.59
0.149
1716
0.05
2.60
0.147
1722
0.05
2.61
0.146
1728
0.05
2.62
0.144
1734
0.05
2.63
0.142
1740
0.05
2.64
0.141
1746
0.05
2.65
0.139
1752
0.05
2.66
0.137
1758
0.05
2.67
0.136
1764
0.05
2.67
0.134
1770
0.04
2.68
0.133
1776
0.04
2.69
0.131
1782
0.04
2.70
0.129
1788
0.04
2.71
0.128
1794
0.04
2.72
0.126
1800
0.04
2.73
0.125
1806
0.04
2.74
0.123
1812
0.04
2.75
0.122
1818
0.04
2.76
0.121
1824
0.04
2.77
0.119
1830
0.04
2.77
0.118
1836
0.04
2.78
0.116
1842
0.04
2.79
0.115
1848
0.04
2.80
0.114
1854
0.04
2.81
0.112
1860
0.04
2.82
0.111
1866
0.04
2.83
0.110
1872
0.04
2.84
0.108
1878
0.04
2.85
0.107
1884
0.04
2.86
0.106
1890
0.04
2.86
0.105
1896
0.03
2.87
0.103
1902
0.03
2.88
0.102
1908
0.03
2.89
0.101
1914
0.03
2.90
0.100
1920
0.03
2.91
0.099
1926
0.03
2.92
0.098
1932
0.03
2.93
0.096
1938
0.03
2.94
0.095
1944
0.03
2.95
0.094
1950
0.03
2.96
0.093
1956
0.03
2.96
0.092
1962
0.03
2.97
0.091
1968
0.03
2.98
0.090
1974
0.03
2.99
0.089
1980
0.03
3.00
0.088
1986
0.03
3.01
0.087
1992
0.03
3.02
0.086
1998
0.03
3.03
0.085
2004
0.03
3.04
0.084
2010
0.03
3.05
0.083
2016
0.03
3.06
0.082
2022
0.03
3.06
0.081
2028
0.03
3.07
0.080
2034
0.03
3.08
0.079
2040
0.03
3.09
0.078
2046
pnMeS05K20087.48 ae
Page 8 o/ 13

3.10
0.077
2052
0.03
111
0.076
2058
0.03
3.12
0.075
2064
0.03
3.13
0.074
2070
0.02
3.14
0.074
2076
0.02
3.15
0.073
2082
0.02
3.16
0.072
2098
0.02
3.16
0.071
2094
0.02
3.17
0.070
2100
0.02
3.18
0.069
2106
0.02
3.19
0.068
2112
0.02
3.20
0.068
2118
0.02
3.21
0.067
2124
0.02
3.22
0.066
2130
0.02
3.23
0.065
2136
0.02
3.24
0.065
2142
0.02
3.25
0.064
2148
0.02
3.25
0.063
2154
0.02
3.26
0.062
2160
0.02
3.27
0.062
2166
0.02
3.28
0.061
2172
0.02
3.29
0.060
2178
0.02
3.30
0.059
2184
0.02
3.31
0.059
2190
0.02
3.32
0.058
2196
0.02
3.33
0.057
2202
0.02
3.34
0.057
2208
0.02
3.35
0.056
2214
0.02
3.35
0.055
2220
0.02
3.36
0.055
2226
0.02
3.37
0.054
2232
0.02
3.38
0.053
2238
0.02
3.39
0.053
2244
0.02
3.40
0.052
2250
0.02
3.41
0.052
2256
0.02
3.42
0.051
2262
0.02
3.43
0.050
2268
0.02
3.44
0.050
2274
0.02
3.45
0.049
2280
0.02
3.45
0.049
2286
0.02
3.46
0.048
2292
0.02
3.47
0.048
2298
0.02
3.48
0.047
2304
0.02
3.49
0.046
2310
0.02
3.50
0.046
2316
0.02
3.51
0.045
2322
0.02
3.52
0.045
2328
0.01
3.53
0.044
2334
0.01
3.54
0.044
2340
0.01
3.54
0.043
2346
0.01
3.55
0.043
2352
0.01
3.56
0.042
2358
0.01
3.57
0.042
2364
0.01
3.58
0.041
2370
0.01
3.59
0.041
2376
0.01
3.60
0.040
2392
0.01
3.61
0.040
2388
0.01
3.62
0.039
2394
0.01
3.63
0.039
2400
0.01
3.64
0.038
2406
0.01
3.64
0.038
2412
0.01
3.65
0.038
2418
0.01
3.66
0.037
2424
0.01
3.67
0.037
2430
0.01
3.68
0.036
2436
0.01
3.69
0.036
2442
0.01
3.70
0.035
2448
pnmtd9S9&O8 7,18M
Page 9 of 13

3.71
0.035
2454
0.01
3.72
0.035
2460
0.01
3.73
0.034
2466
0.01
3.74
0.034
2472
0.01
3.74
0.033
2478
0.01
3.75
0.033
2484
0.01
3.76
0.033
2490
0.01
3.77
0.032
2496
0.01
3.79
0.032
2502
0.01
3.79
0.031
2508
0.01
3.80
0.031
2514
0.01
3.81
0.031
2520
0.01
3.82
0.030
2526
0.01
3.83
0.030
2532
0.01
3.84
0.030
2538
0.01
3.84
0.029
2544
0.01
3.85
0.029
2550
0.01
3.86
0.029
2556
0.01
3.87
0.028
2562
0.01
3.88
0.028
2568
0.01
3.89
0.028
2574
0.01
3.90
0.027
2580
0.01
3.91
0.027
2586
0.01
3.92
0.027
2592
0.01
3.93
0.026
2598
0.01
3.93
0.026
2604
0.01
3.94
0.026
2610
0.01
3.95
0.025
2616
0.01
3.96
0.025
2622
0.01
3.97
0.025
2628
0.01
3.98
0.025
2634
0.01
3.99
0.024
2640
0.01
4.00
0.024
2646
0.01
4.01
0.024
2652
0.01
4.02
0.023
2658
0.01
4.03
0.023
2664
0.01
4.03
0.023
2670
0.01
4.04
0.023
2676
0.01
4.05
0.022
2682
0.01
4.06
0.022
2688
0.01
4.07
0.022
2694
0.01
4.08
0.022
2700
0.01
4.09
0.021
2706
0.01
4.10
0.021
2712
0.01
4.11
0.021
2718
0.01
4.12
0.021
2724
0.01
4.13
0.020
2730
0.01
4.13
0.020
2736
0.01
4.14
0.020
2742
0.01
4.15
0.020
2748
0.01
4.16
0.019
2754
0.01
4.17
0.019
2760
0.01
4.18
0.019
2766
0.01
4.19
0.019
2772
0.01
4.20
0.019
2778
0.01
4.21
0.018
2784
0.01
4.22
0.018
2790
0.01
4.22
0.018
2796
0.01
4.23
0.018
2802
0.01
4.24
0.017
2808
0.01
4.25
0.017
2814
0.01
4.26
0.017
2820
0.01
4.27
0.017
2826
0.01
4.28
0.017
2832
0.01
4.29
0.016
2838
0.01
4.30
0.016
2844
0.01
4.31
0.016
2850
pmtea OSW z e 7.46 W
Page 10 of 13

4.32
0.016
2856
0.01
4.32
0.016
2862
0.01
4.33
0.016
2868
0.01
4.34
0.015
2874
0.01
4.35
0.015
2880
0.01
4.36
0.015
2886
0.00
4.37
0.015
2892
0.00
4.38
0.015
2898
0.00
4.39
0.014
2904
0.00
4.40
0.014
2910
0.00
4.41
0.014
2916
0.00
4.42
0.014
2922
0.00
4.42
0.014
2928
0.00
4.43
0.014
2934
0.00
4.44
0.013
2940
0.00
4.45
0.013
2946
0.00
4.46
0.013
2952
0.00
4.47
0.013
2958
0.00
4.48
0.013
2964
0.00
4A9
0.013
2970
0.00
4.50
0.013
2976
0.00
4.51
0.012
2982
0.00
4.52
0.012
2988
0.00
4.52
0.012
2994
0.00
4.53
0.012
3000
0.00
4.54
0.012
3006
0.00
4.55
0.012
3012
0.00
4.56
0.012
3018
0.00
4.57
0.011
3024
0.00
4.58
0.011
3030
0.00
4.59
0.011
3036
0.00
4.60
0.011
3042
0.00
4.61
0.011
3048
0.00
4.61
0.011
3054
0.00
4.62
0.011
3060
0.00
4.63
0.011
3066
0.00
4.64
0.010
3072
0.00
4.65
0.010
3078
0.00
4.66
0.010
3084
0.00
4.67
0.010
3090
0.00
4.68
0.010
3096
0.00
4.69
0.010
3102
0.00
4.70
0.010
3108
0.00
4.71
0.010
3114
0.00
4.71
0.009
3120
0.00
4.72
0.009
3126
0.00
4.73
0.009
3132
0.00
4.74
0.009
3138
0.00
4.75
0.009
3144
0.00
4.76
0.009
3150
0.00
4.77
0.009
3156
0.00
4.78
0.009
3162
0.00
4.79
0.009
3168
0.00
4.80
0.009
3174
0.00
TOTAL
WEIR
ORIFICE
EMERGENCY
TIME
INFLOW
STORAGE
STAGE
RISER
RISER
ORIFICE
SPILLWAY
OUTFLOW
min
cfs
cfIf
,(ft)
cfs)
LELI
iEPE)cfs
cfs
0.00
0.00
0
0.00
0.0
0.0
0.0
0.0
0.00
6.00
0.00
0
0.00
0.0
0.0
0.0
0.0
0.00
12.00
0.00
0
0.00
0.0
0.0
0.0
0.0
0.00
18.00
0.00
0
0.00
0.0
0.0
0.0
0.0
0.00
24.00
0.00
0
0.00
0.0
0.0
0.0
0.0
0.00
30.00
0.00
1
0.00
q&00e
0.0
0.0
0.00
Ontee:
TO nre0.0
page 11 of 13

0
36.00
0.00
1
0.00
0.0
0.0
0.0
0.0
0.00
42.00
0.00
2
0.00
0.0
0.0
0.0
0.0
0.00
48.00
0.00
3
0.00
0.0
0.0
0.0
0.0
0.00
54.00
0.01
5
0.00
0.0
0.0
0.0
0.0
0.00
60.00
0.01
7
0.00
0.0
0.0
0.0
0.0
0.00
66.00
0.01
9
0.00
0.0
0.0
0.0
0.0
0.00
72.00
0.01
12
0.01
0.0
0.0
0.0
0.0
0.00
78.00
0.01
15
0.01
0.0
0.0
0.0
0.0
0.00
84,00
0.01
19
0.01
0.0
0.0
0.0
0.0
0.00
90.00
0.01
24
0.01
0.0
0.0
0.0
0.0
0.00
96.00
0.02
29
0.01
0.0
0.0
0.0
0.0
0.00
102.00
0.02
35
0.01
0.0
0.0
0.0
0.0
0.00
108.00
0.02
42
0.01
0.0
0.0
0.0
0.0
0.00
114.00
0.02
49
0.02
0.0
0.0
0.0
0.0
0.00
120.00
0.03
58
0.02
0.0
0.0
0.0
0.0
0.00
126.00
0.03
67
0.02
0.0
0.0
0.0
0.0
0.00
132.00
0.03
77
OV
0.0
0.0
0.0
0.0
OM
138.00
0.03
88
O.02
0.0
0.0
0.0
0.0
0.00
144.00
0.04
99
0.02
0.0
0.0
0.0
0.0
0.00
150.00
0.04
112
0.03
0.0
0.0
U
0.0
0.00
156.00
0.04
126
O.03
0.0
0.0
0.0
0.0
0,00
162.00
0.05
141
0.03
0.0
0.0
0.0
0.0
0.00
168.00
0.05
157
0.03
U
0.0
0.0
0.0
0.00
174.00
0.05
174
0.04
0.0
0.0
0.0
0.0
0.00
180.00
0.06
192
0.04
0.0
0.0
0.0
0.0
0.00
186.00
0.06
211
0.04
0.0
0.0
0.0
0.0
0.00
192.00
0.06
232
0.05
0.0
0.0
0.0
0.0
0.00
198.00
0.07
254
0.05
0.0
0.0
0.0
0.0
0.00
204.00
0.07
276
0.05
0.0
0.0
0.0
0.0
0.01
210.00
0.08
300
0.05
0.0
0.0
0.0
0.0
0.01
216.00
0.08
326
0.06
0.0
0.0
0.0
0.0
0.01
222.00
0.08
352
0.06
0.0
0.0
0.0
0.0
0.01
228M
0.09
380
0.06
0.0
0.0
0.0
0.0
0.01
234.00
0.09
409
0.07
0.0
.0.0
0.0
0.0
0.01
240.00
0.10
440
0,07
0.0
0.0
0.0
0.0
0.01
246.00
0.10
472
0.08
0.0
0.0
0.0
0.0
0.01
25100
0.11
505
0.08
0.0
0.0
0.0
0.0
0.01
258.00
0.11
539
0.08
0.0
0.0
0.0
0.0
0.01
264.00
0.11
575
0.09
0.0
0.0
0.0
0.0
0.01
270.00
OA2
612
0.09
0.0
0.0
0.0
0.0
0.01
276.00
0.12
651
0.09
0.0
0.0
0.0
0.0
0.01
282.00
O.13
690
0.10
0.0
0.0
0.0
0.0
0.01
288.00
0.13
732
0.10
0.0
0.0
0.0
0.0
0.01
294.00
0.14
774
0.11
0.0
0.0
0.0
0.0
0.02
300.00
0.14
818
0.11
0.0
0.0
0.0
0.0
0.02
306.00
0.15
863
0J2
0.0
0.0
0.0
0.0
0.02
312.00
0.15
910
0.12
0.0
0.0
0.0
0.0
0.02
318.00
0.16
958
0.12
0.0
0.0
0.0
0.0
0.02
324,00
0.16
1007
0.13
0.0
0.0
0.0
0.0
0.02
330.00
0.17
1057
0.13
0.0
0.0
0.0
0.0
0.02
336.00
0.17
1109
0.14
0.0
0.0
0.0
0.0
0.02
342.00
0.18
1162
0.14
0.0
0.0
0.0
0.0
0.02
348.00
0.18
1217
0.15
0.0
0.0
0.0
0.0
0.03
354.00
0,18
1272
0.15
0.0
0.0
0.0
0.0
0.03
360.00
0.19
1329
0.16
0.0
0.0
0.0
0.0
0.03
366M
0.19
1388
0.16
0.0
0.0
0.0
0.0
0.03
372.00
UO
1447
0.17
0.0
0.0
0.0
0.0
0.03
378.00
0.20
1508
0.17
0.0
0.0
0.0
0.0
0.03
384.00
0.21
1570
0.18
0.0
0.0
0.0
0.0
0.03
390M
0.21
1633
0.18
0.0
0.0
0.0
0.0
O.03
396.00
0.22
1698
0.19
0.0
0.0
0.0
0.0
0.03
402.00
0.22
1764
0.19
0.0
0.0
0.0
0.0
0.03
408.00
0.23
1831
020
0.0
0.0
0.0
0.0
U4
414.00
0.23
1900
0.20
0.0
0.0
0.0
0.0
0.04
420.00
0.23
1970
0.21
0.0
0.0
0.0
0.0
0.04
426.00
0.24
2041
0.21
0.0
0.0
0.0
0.0
0.04
432.00
0.24
2113
0.22
Yemen: Qrjzwe
ru MO 0
0.0
0.0
0.04 Page 12 of 13

41) Site Solutions,
Inc.
438.00
0.25
2187
0.22
0.0
0.0
0.0
0.0
0.04
444.00
0.25
2262
0.23
0.0
0.0
0.0
0.0
0.04
450.00
0.26
2338
0.23
0.0
0.0
0.0
0.0
0.04
456.00
0.26
2416
0.24
0.0
0.0
0.0
0.0
0.04
462.00
0.26
2494
0.24
0.0
0.0
0.0
0.0
0.04
468.00
0.27
2574
0.25
0.0
0.0
0.0
0.0
0.04
474.00
0.27
2655
0.26
0.0
0.0
0.0
0.0
0.04
480.00
0.27
2736
0.26
0.0
0.0
0.0
0.0
0.04
486.00
0.28
2819
0.27
0.0
0.0
0.0
0.0
0.04
492.00
0.28
2903
0.27
0.0
0.0
0.0
0.0
0.05
498.00
0.28
2988
0.28
0.0
0.0
0.0
0.0
0.05
504.00
0.29
3074
0.28
0.0
0.0
0.0
0.0
0.05
510.00
0.29
3161
- 0.29
0.0
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528.00
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pOnteG: e¢ XB 7:1e M Page 13 of 13

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0.1D
1 IY
West Manchester Industrial Park Retention Pond Routing (DA-1)
Inflow / Outflow Hydrograph
1-yr Storm Everitt
0 120 240 300 480 eW 720 840 960 108012001320144015601680180019202040216022802400252026402760288030003120
Time (min)
�—*—INFLOW
—*—OUTFLOW