20000582 Ver 1_COMPLETE FILE_20000502

Little & Associates Architects, Inc.
5815 Westpark Drive
Charlotte, NC 28217
NCDENR
Division of Water Quality Wetlands/401 Unit
4401 Reedy Creek Road
Raleigh, NC 27607
Letter -Itansmittal
Date: 12/6/99 Job Number: 02-9331-00
ATTENTION: Todd St. John
RE: CMS Southwest High School

We are sending you: ¦ Attached ? Under separate Cover via FEDERAL EXPRESS
? Shop drawings ? Prints ? Plans ? Samples ? Specifications
? Copy of letter ? Change Order ?
Copies Date Number Description
2 1/11/00 Site Details
These are transmitted as checked below:
? For approval ? Approved as submitted
¦ For your use ? Approved as noted
? As requested ? Returned for corrections
¦ For review and comment ?
? For bids due.
Remarks:
cc:
? Resubmit copies for approval
? Submit copies for distribution
? Return corrected prints
Signed: VR-kevin Gorman, R.L.A.
Land Planning Division
704-561-7569
7045618710 LITTLE & ASSO. ARCH.
fax transmittal
TO: Todd St. John
COMPANY: NCDENR-Division of Water Quality
FAX #: [phone]
OM: Kevin Gorman
PHONE [phone]
DATE: 1.11.01
PROJECT: DWQ#000582
JOB #: 002933000
PAGES FOLLOWING: 2
HARD COPY TO FOLLOW: YES
219 P01 JAN 11 101 11:00
Little&AssociatesArchitects
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CKkuorrz, NC
28217
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704 525 6350
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704 561 8710
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MESSAGE:
Todd, i
As per our phone conversation, I am faxing you revis? pond sections indicating the side slopes. I will
mail you a half-size drawing today for your files. It my understanding that this will give us final
approval upon receipt of this inforniation.
1
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1
If there is a problem with this transmission, p aso call [phone]
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State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
Mr. Dave Kubicki
Charlotte Mecklenburg Schools
3301 Stafford Drive
Charlotte, NC 28208
Dear Mr. Kubicki:
1
•
NC ENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
December 4, 2000
Re: Certification Pursuant to Section 401 of the Federal Clean Water Act,
Proposed South West High School
WQC Project #00582 COE # 200030806
Mecklenburg County
Attached hereto is a copy of Certification No. 3308 issued to the Charlotte-Mecklenburg
School System dated December 4, 2000.
If we can be of further assistance, do not hesitate to contact us.
in rely,
Stevens
Attachments
cc: Wilmington District Corps of Engineers
Corps of Engineers Wilmington Field Office
Wilmington DWQ Regional Office
Doug Huggett, Division of Coastal Management
File Copy
Central Files
Lisa Beckstrom; LAW Engineering & Environmental Services, Inc.
Division of Water Quality • Wetlands/401 Unit
1621 Mail Service Center • Raleigh NC 27669-1621 • Telephone [phone] • FAX # [phone]
An Equal Opportunity Affirmative Action Employer
50% recycled/10% post consumer paper

NORTH CAROLINA 401 WATER QUALITY CERTIFICATION
THIS CERTIFICATION is issued in conformity with the requirements of Section 401
Public Laws 92-500 and 95-217 of the United States and subject to the North Carolina Division
of Water Quality (DWQ) Regulations in 15 NCAC 2H, Section .0500. It is issued to Charlotte-
Mecklenburg School System resulting in 885 linear feet of stream impact in Mecklenburg
County pursuant to an application filed on the day of August 30, 2000 to contact South West
High School.
The application provides adequate assurance that the discharge of fill material into the
waters of Sugar Creek and its tributaries in conjunction with the proposed development will not
result in a violation of applicable Water Quality Standards and discharge guidelines. Therefore,
the State of North Carolina certifies that this activity will not violate the applicable portions of
Sections 301, 302, 303, 306, 307 of PL 92-500 and PL 95-217 if conducted in accordance with
the application and conditions hereinafter set forth.
This approval is only valid for the purpose and design that you submitted in your
application, as described in the Public Notice. If you change your project, you must notify us
and send us a new application for a new certification. If the property is sold, the new owner must
be given a copy of the Certification and approval letter and is thereby responsible for complying
with all conditions. If total wetland fills for this project (now or in the future) exceed one acre
or total perennial stream impact exceeds 150 feet, compensatory mitigation may be required as
described in 15A NCAC 2H .0506 (h) (6) and (7). For this approval to be valid, you must follow
the conditions listed below. In addition, you should get any other federal, state or local permits
before you go ahead with your project including (but not limited to) Sediment and Erosion
control, Coastal Stormwater, Non-discharge and Water Supply watershed regulations.
Condition(s) of Certification:
Appropriate sediment and erosion control practices which equal or exceed those
outlined in the most recent version of two manuals, either the "North Carolina Sediment
and Erosion Control Planning and Design Manual" or the "North Carolina Surface
Mining Manual" (available from the Division of Land Resources in the DEHNR
Regional or Central Offices). The control practices shall be utilized to prevent
exceedances of the appropriate turbidity water quality standard (50 NTUs in all fresh
water streams and rivers not designated as trout waters; 25 NTUs in all lakes and
reservoirs, and all saltwater classes; and 10 NTUs in trout waters);
2. All sediment and erosion control measures placed in wetlands or waters shall be
removed and the natural grade restored after the Division of Land Resources has
released the project;
3. Measures shall be taken to prevent live or fresh concrete from coming into contact with
waters of the state until the concrete has hardened;
4. Should waste or borrow sites be located in wetlands or other waters, compensatory
mitigation will be required since it is a direct impact from road construction activities;
We understand that you have chosen to contribute to the Wetland Restoration Program
in order to compensate for these impacts to wetlands and/or streams. In accordance
with 15A NCAC 2R .0402, this contribution will satisfy our compensatory mitigation
requirements under 15A NCAC 2H .0506(h). According to 15A NCAC 2H .0506(h),
feet of restoration will be required. Until the Wetland Restoration Program receives
and clears your check (made payable to: DENR - Wetland Restoration Program),
wetland or stream fill shall not occur. Mr. Ron Ferrell should be contacted at 919-733-
5083 ext. 358 if you have any questions concerning the Wetland Restoration Program.
You have one month from the date of this Certification to make this payment.
For accounting purposes, this Certification authorizes the fill of 885 feet of
streams, in 030834 river and subbasin and 885 linear feet of stream restoration are
required. Please be aware that the Wetland Restoration Program (WRP) rules
require rounding of acreage amounts to one-quarter acre increments (15A 211
.0503(b)).
5. An additional condition is that a final, written stormwater management plan shall be
approved by this Office before the impacts specified in this Certification occur. The
stormwater management plan must include plans and specifications for stormwater
management facilities designed to remove 85% TSS according to the most recent
version of the NC DENR Stormwater Best Management Practices Manual. Also, before
any permanent building is occupied at the subject site, the facilities, as approved by this
Office, shall be constructed and operational, and the stormwater management plan, as
approved by this Office, shall be implemented.
7. Deed notifications of similar mechanisms shall be placed on all remaining jurisdictional
wetlands and water to notify the state in order to assure compliance for future
compliance for future wetland and/or water impact. These mechanisms shall be put in
place within 30 days of the date of this letter or the insurance of the 404 Permit
(whichever is later).
Violations of any condition herein set forth shall result in revocation of this Certification
and may result in criminal and/or civil penalties. This Certification shall become null and void
unless the above conditions are made conditions of the Federal 404 and/or coastal Area
Management Act Permit. This Certification shall expire upon expiration of the 404 or CAMA
permit.
If this Certification is unacceptable to you have the right to an adjudicatory hearing upon
written request within sixty (60) days following receipt of this Certification. 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. Box 27447, Raleigh, N.C.
276 1 1-7447. If modifications are made to an original Certification, you have the right to an
adjudicatory hearing on the modifications upon written request within sixty (60) days following
receipt of the Certification. Unless such demands are made, this Certification shall be final and
binding.
This the 4T" day of December 2000
DIVISION OF WATER QUALITY
Kerr T. Stevens
WQC# 3308
NORTH CAROLINA-DIVISON OF WATER QUALITY
401 WATER QUALITY CERTIFICATION
4
SUMMARY OF PERMITTED IMPACTS AND MITIGATION REQUIREMENTS
In accordance with 15A NCAC 2 H .0500, Charlotte-Mecklenburg Scholl System has
permission as outline below for the purpose(s) of proposed South West High School. All activities
associated with these authorized impacts must be conducted with the conditions listed in the
attached certification transmittal letter. THIS CERTIFICATION IS NOT VALID WITHOUT THE
ATTACHMENTS.
COMPENSATORY MITIGATION REQUIREMENT WETLAND RESTORATION PROGRAM
LOCATION South West High School
COUNTY: Mecklenburg
BASIN/SUBBASIN 030834
As required by 15A NCAC 2H .0506, and the conditions of this certification, you are
required to compensate for the above impacts through the restoration, creation, enhancement or
preservation of wetlands and surface waters as outlined below prior to conducting any activities
that impact or degrade the waters of the state.
Note: Acreage requirements proposed to be mitigated through the wetland Restoration Programs
must be rounded to one-quarter acre increments according to 15 2r .0503(b)
acres of Class WL wetlands
acres of riparian wetland
acres of non-riparian wetlands
acres of Class SWL wetlands
885 linear feet of stream buffers
(other)
One of the options you have available to satisfy the compensatory mitigation requirements
is through the payment of a fee to the Wetlands Restoration Fund per NCAC 2R .0503. If you
choose this option, please sign this form and mail it to the Wetlands Restoration Fund at the
address listed below. An invoice for the appropriate amount of payment will be sent to you upon
receipt of this form. PLEASE NOTE, THE ABOVE IMPACTS ARE NOT AUTHORIZED
UNTIL YOU RECEIVED NOTIFICATION THAT YOUR PAYMENT HAS BEEN PROCESSED
BY THE WETLANDS RESTORATION PROGRAM.
Signature
Date
WETLANDS RESTORATION PROGRAM
DIVISON OF WATER QUALITY
1619 Mail Service Center
RALEIGH, N.C. 27669-1619
[phone]
DWQ Project No.:
County:
Applicant:
a;
Project Name:
Date of Issuance of 401 Water Quality Certification:
Certificate of Completion
Upon completion of all work approved within the 401 Water Quality Certification or applicable Buffer
Rules, and any subsequent modifications, the applicant is required to return this certificate to the
401/Wetlands Unit, North Carolina Division of Water Quality, 1621 Mail Service Center, Raleigh, NC,
27699-1 62 1. This form may be returned to DWQ by the applicant, the applicant's authorized agent, or the
project engineer.It is not necessary to send certificates from all of these.
Applicant's Certification
I, hereby state that, to the best of my abilities, due care and
diligence was used in the observation of the construction such that the construction was observed to be built
within substantial compliance and intent of the 401 Water Quality Certification and Buffer Rules, the
approved plans and specifications, and other supporting materials.
Signature: Date:
Agent's Certification
I, hereby state that, to the best of my abilities, due care and
diligence was used in the observation of the construction such that the construction was observed to be built
within substantial compliance and intent of the 401 Water Quality Certification and Buffer Rules, the
approved plans and specifications, and other supporting materials.
Signature: Date:
If this project was designed by a Certified Professional
I, , as a duly registered Professional (i.e.,
Engineer, Landscape Architect, Surveyor, ect.) in the State of North Carolina, having been authorized to
observe (periodically, weekly, full time) the construction of the project, for the Permittee hereby state that,
to the best of my abilities, due care and diligence was used in the observation of the construction such that
the construction was observed to be built within substantial compliance and intent of the 401 Water Quality
Certification and Buffer Rules, the approved plans and specifications, and other supporting materials.
Signature Registration No.
Date
ii
State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
ffl?.?VA
NCDENR
DIVISION OF WATER QUALITY
December 12, 2000
Mr. Dave Kubicki
Charlotte Mecklenburg Schools
3301 Stafford Drive
Charlotte. NC 28208
Subject: Stormwater Ponds
South West High School
Mecklenburg County, NC
DWQ# 000582
Dear Mr. Kubiki:
This Office is in receipt of the plans dated December 8, 2000 and November 1, 2000 for
the stormwater management ponds at the subject facility prepared on your behalf by Little and
Associates and submitted to the Division on December 1, 2000. Staff from the Wetlands Unit
reviewed the plans and found them acceptable except for the side slopes below the vegetative
shelf appear to be 2:1. Side slopes above and below the vegetative shelf should NOT be steeper
than 3:1 and side slopes of the vegetative shelf should not be steeper than 6:1. As such, the
engineering plans must be revised to reflect the above. As soon as this Office receives plans that
adequately reflect the above changes your stormwater management plans will be considered
approved. Please note that this approval shall not be construed as an approval of the dam design
for Dam Safety purposes.
If you have any questions regarding this matter, please contact Mr. Todd St. John at (919)
733-9584.
i R. Domey
lands Unit Sup -visor
cc
Mr. Todd St. John, Wetlands Unit
Mooresville Regional Office
File
Mr. Kevin Gorman, Little and Associates
4401 Reedy Creek Road, Raleigh, NC 27607 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post-consumer paper
ewn
NCDENR
DIVISION OF WATER QUALITY
December 13, 2000
Memorandum To: John Dorney
From: Todd St. John
Subject: Mecklenburg County Schools
Mecklenburg County
DWQ# 000582
I have reviewed the storinwater management plans for the subject project. I had
discussed the idea of providing extended detention wetlands with the engineer because
they are shallower than ponds (i.e. less conducive to swimming), and they are more
effective at removing nutrients. It seems they decided to go with ponds. The ponds appear
to be oversized. Additionally, the football field and track area is not tributary to a pond,
but is tributary to a level spreader. In this case, I think the fewer ponds the better.
However, I do not think that we should allow them to have 2:1 side slopes below the
permanent pool level (the BMP manual requires 3:1) for sloughing (and safety) reasons,
as such 1 have provided a caveat in the proposed approval letter.
L, a ttl e&A ssoc ° l atesAr+chitects
2000
A
November 15, 2000
Mr. Todd St. John
DWQ
1617 Mail Service Center
Raleigh, NC 27699-1617
RE: DWQ#000582
Dear Todd,
I have enclosed the stormwater management application form per our phone
conversation. Additionally, I have enclosed four (4) half size drawings that
indicate the revisions to the side slopes below the normal pool elevation. Please
look at this and see if it is acceptable. We are trying to wrap up this project, and
your assistance would be helpful.
Best regards,
evin Gorman, RLA
Landscape Architect
KG/ grh
enclosure
'11 m I ul I ..??
n L',r. i s7un

cc: Lisa Beckstrum-Law Engineering.
Project No. DWQ 582
Project Name: SWHS burp 2
SUBMITTED DESIGN: REQUIRED DESIGN:
elevations status
Bottom of Basin (ft) 664
Permanent Pool (ft) 668.7 4.7 ft. depth ok
Temporary Pool (ft) 670.08 1.38 ft. depth ok
averts
Permanent Pool SA (sq ft) 27000 15456 sq. ft. ok
Drainage Area (ac) 21.36
Impervious Area (ac) 10.19 47.7 `/c
voltanes
Permanent Pool (cu ft) 104700
Temporary Pool (cu ft) 38768 37168 cu. ft. ok
Forebay (cu ft) 31700 30.3 '/r V/ check foreb(
? 0
Other porameters
SAMA 0 1.66
Orifice Diameter (in) 3 0.20 cfs drawdown
Design Rainfall (in) 1 2.3 clay drawdown ok
Linear Interpolation o/Correct SA/DA **''
4.7 ft. Permanent Pool Depth
% Impervious SA/DA from Tahle
Next Lowest 40 1.43
Project Impervious 47.7 1.66
Next Ilighest 50 1.73
Project No. DWQ 582
Project Name: SWHS bmp I
SUBMITTED DESIGN: REQUIRED DESIGN:
elevations status
Bottom of Basin (ft) 651
Permanent Pool (ft) 656 5 ft. depth ok
Temporary Pool (ft) 656.85 0.85 ft. depth ok
areas
Permanent Pool SA (sq ft) 32670 10797 sq. ft. ok
Drainage Area (ac) 16.16
Impervious Area (ac) 8.34 51.6 %
volumes
Permanent Pool (Cu ft) 125452
Temporary Pool (cu ft) 29315 30180 cu. ft. check tennpc
Forebay (cu ft) 28740 22.9 'Y(, check foreli

other parameters
SA/DA 0 1.53
Orifice Diameter (in) 4 0.27 cfs drawdown
Design Rainfall (in) 1 1.2 day drawdown check draws
Linear Interpolation of Correct SA/DA ***
5 ft. Permanent Pool Depth
% Impervious SA/DA from Table
Next Lowest 50 1.5
Project Impervious 51.6 1.53
Next Highest 60 1.71
Little&AssociatesArchitects
DEC 1 I Up
Letter of Transmittal
From: _1
Little & Associates Architects, Inc. Date:
12/08/00 Job Number:
666x5699.8(3
5815 Westpark Drive 0r?t ?? 33c -Cx>
Charlotte, NC 28217 Attention: Todd St. John
To: Re: Southwest High Shool
NCDENR / Division of Water Quality /Wetlands/401 Unit
4401 Reed Creek Road
Raleigh, NC 27607
We are sending you ...
? Shop Drawings
? Copy of Letter
® Attached
? Prints
? Change Order
? Under separate cover via
? Samples
? Other
the following items:
? Specifications
Copies Date Number I Description I Action Req'd
2 Composite Grading & Erosion Control Plan - ALT #27
These are transmitted as checked below:
? For approval ? Approved as submitted
® For your use ? Approved as noted
? As requested ? Returned for corrections
? For review and comment ?
? For bids due , 19
Remarks:
? Resubmit _ copies for approval
? Submit - copies for distribution
? Return - corrected prints
? Prints returned after loan to us
Copy to:
File
Signed: Vy';-7
Printed Name: Kevin Gorman, RLA
Lanscape Architect
If enclosures are not as noted, please notify us.
for
Pen-nit No.
(to be provided by DTT'Q)
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWQStormwater Management Plan Review:
A complete stormwater management plan submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
structure details.
1. PROJECT INFORMATION
Project Name:
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality

Contact Person: K eJi>J G-i0t2 0' 4, Phone Number: (-b4-) 6(0 1 - 7S(!O?
For projects with multiple basins, specify which basin this worksheet applies to: __.t>tA!Q _
elevations
Basin Bottom Elevation no ft.
Pennanent Pool Elevation ?prj??„ •_Q?__ ft.
Temporary Pool Elevation (jrp,.5 ft.
areas
Permanent Pool Surface Area % sq. ft
Drainage Area ac.
Impervious Area b4-_ ac.
volumes
Permanent Pool Volume
Temporary Pool Volume
Forebay Volume
Other parameters
SA/DAI
Diameter of Orifice
Design Rainfall
Design TSS Removal 2
Fonn SWU-102 Rev 3.99
(floor of the basin)
(elevation of the orifice)
(elevation of the discharge structure overflow)
(water stuface area at the orifice elevation)
(on-site and off-site drainage to the basin)
(on-site and ofT site drainage to the basin)
cu. ft. (combined volume of main basin and forebay)
cu. ft. (volute detained above the permanent pool)
cu. ft. (approximately 20% of total volanne)
• S z- _ (surface area to drainage area ratio from DGVQ table)
_ in. (2 to S day temporary pool draw-down required)
in.
0
% (mininturn 85% required)
Page I of 4
i
Footnotes:
t When using the Division SA/DA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious IN. and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
2 In the 20 coastal counties, the requirement for a %egetati%c filter may be waived if the %vet detention basin is designed to provide
90% TSS removal. The NCDENR BNIP manual provides design tables for both 854a TSS removal and 90% TSS removal.
II. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 214 .1008.
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. If a requirement has not been met, attach justification.
licants Initials

a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
b. The forebay volume is approximately equal to 20% of the basin volume.
c. The temporary pool controls runoff from the design storm event.
d. The temporary pool draws down in 2 to 5 days.
e. If required, a 30-foot vegetative filter is provided at the outlet (include non-erosive flow
calculations)
f. The basin length to width ratio is greater than 3:1.
g. The basin side slopes above the permanent pool are no steeper than 3:1.
h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
Vegetative cover above the permanent pool elevation is specified.
j. A trash rack or similar device is provided for both the overflow and orifice.
k. A recorded drainage easement is provided for each basin including access to nearest right-
of-way. C t` PD??5 ?,4u l )
1. If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified prior to use as a wet detention basin.
in. A mechanism is specified which will drain the basin for maintenance or an emeroency.
III. VET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided.
This system (check one) does 0 does not
This system (check one) 0 does does not
Form SWU-102 Rev 3.99
incorporate a vegetated filter at the outlet.
incorporate pretreatment other than a forebay.
Page 2 of 4
i
Maintenance activities shall be performed as follows:
After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days as designed.
2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain
proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed of
in an appropriate manner and shall be handled in a manner that will not adversely impact water quality (i.e.
stockpiling near a wet detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
When the permanent pool depth reads 5Z- feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads CPGZ•Zsfeet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanks)
?0 Permanent Pool Elevation
Sediment R\io al E1. e,zs- 75' 4o -
------------ -- Sediment Removal Elevation75%
Bottom ation?,? °.. --------------------------------------------- - ----
Bottom Elevation --& (- _5'%
FOREBAY )MAIN POND
5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow alone the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through
the emergency drain shall be minimized to the maximum extent practical.
Form SWU-102 Rev 3.99
Page 3 of 4
7. All components of the wet detention basin system shall be maintained in good working order.
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print name: / ll e I< Aoz:fi6 I r
Title:
Addr
Phon
Signz
Date:
Note: The legally responsible party should not be a homeowners association unless more than 50°'0 of the lots have been sold and a
resident of the subdivision has been named the president.
I, Q no 1Q a Notary Public for the State of A1? C"944l? ,
County of do hereby certify that N44-k-
personally appeared before me this q4 day of ?mtuNJAxti , ZCQO_, and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
I&U?4
SEAL
My commission expires OZ-
Form SWU-102 Rev 3.99 Page 4 of 4
l
4
Permit No.
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
(to be provided by DTVQ)
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
stricture details.
1. PROJECT INFORMATION
Project Name: (1 NL`J `?c?T t'C l?'? t'? 1??? `??
Contact Person: S JIN Phone Number: L704L__5j -? -75(ol
For projects with multiple basins, specify which basin this worksheet applies to: 7
elevations
Basin Bottom Elevation ft.
Permanent Pool Elevation ?(0) -:10 ft.
Temporary Pool Elevation ° ft.
areas
Pennanent Pool Surface Area L l -_ sq. ft
Drainage Area ac.
Impervious Area I C7 • ?? ac.
volunies
Permanent Pool Volume
Temporary Pool Volume
Forebay Volume
114 ' (nL) cu. ft.
0 & __ cu. ft.
cu. ft.
Other parameters
SA/DAI
Diameter of Orifice
Design Rainfall
Design TSS Removal 2
Form SWU-102 Rev 3.99
(floor of'the basin)
(elevation of the orifice)
(elevation of the discharge structure ovetflotiv)
(water stuface area at the orifice elevation)
(on-site and off-site drainage to the basin)
(on-site and off-site drainage to the basin)
(combined volume of stain basin and forebay)
(volume detained above the permanent pool)
(approximately 20%of total volume)
• 70 (stnface area to drainage area ratio front DPVQ table)
in. (2 to S day temporari• pool draw-dmi,n requirecl)
in.
% (niinintunt 85% required)
Page 1 of 4

Footnotes:
When using the Division SA!DA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious % and permanent pool depth. linear interpolation should be employed to determine the correct value for non-
standard table entries.
'- In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wct detention basin is designed to provide
90°4, TSS removal. The NCDENR BMP manual provides design tables for both 8501, TSS removal and 90`Yo TSS removal.
II. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 21-1 .1008.
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. If a requirement has not been met, attach justification.
Appli nts Initials
a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
b. The forebay volume is approximately equal to 20% of the basin volume.
c. The temporary pool controls runoff from the design storm event.

d. The temporary pool draws down in 2 to 5 days.
e. If required, a 30-foot vegetative filter is provided at the outlet (include non-erosive flow
calculations)
f. The basin length to width ratio is greater than 3:1.
g. The basin side slopes above the permanent pool are no steeper than 3:1.
h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
i. Vegetative cover above the permanent pool elevation is specified.
j. A trash rack or similar device is provided for both the overflow and orifice.
k. A recorde drainage easement is provided for each basin including access to nearest right-
of-way. ?oe5 atq( f )
1. If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified prior to use as a wet detention basin.
in. A mechanism is specified which will drain the basin for maintenance or an emergency.
Ill. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided.
This system (check one) ,does 0 does not incorporate a vegetated filter at the outlet.
This system (check one) 0 does does not incorporate pretreatment other than a forebay.
Form SWU-102 Rev 3.99
Page 2 of 4
Maintenance activities shall be performed as follows:
After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days as designed.
2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain
proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed of
in an appropriate manner and shall be handled in a manner that will not adversely impact water quality (i.e.
stockpiling near a wet detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
When the permanent pool depth reads feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanky)
Permanent Pool Elevation ELI. 70
Sediment R4 oval El old 1 o
-------------- -
Bottom Ele.ation (a °''
FOREBAY
Sediment Removal Elevation (06?61 1 Q 75%
----------------------- ------•
--------------Bottom Elevation (Q(04.00 ---- 25% /
MAIN POND
5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through
the emergency drain shall be minimized to the maximum extent practical.
Form SWU-102 Rev 3.99 Page 3 of 4
7. All components of the wet detention basin system shall be maintained in good working order.
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print name:--A-//C l'/ Ape gc 15
Title: /- /RI- CY'OR nL CAF) rk P--9QjGrT 5
Addrf
Phon(
Signa
Date:
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a
resident of the subdivision has been named the president.
I I(?, 11? ?i1At? a Notary Public for the State of ? OAU4mLd.,
County of l3'w m do hereby certify that N, ,tunes
personally appeared before me this qu` day of IV&04,44-- Zones, and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
"`?4 uw??
SEAL
My commission expires_l? 0-
Form SW-U-102 Rev 3.99 Page 4 of 4
Q?
RCDENR
JAMES B. HUNT JR.
GOVERNOR
BILL HOLMAN
SECRETARY
KERR T. STEVENS
DIRECTOR
REF/cvb
cc: Rob Ridings, Wetlands/401 Unit
Steve Chapin, USACOE
Pete Colwell, DWQ-MRO
file
Sincerely,
Ronald E. Ferrell,
Program Manager
ow,
. :f Ni'AAC&K7G-""'s
2 0 1 0
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
Ms. Lisa Beckstorm
LawGibb Group
2801 Yorkmont Road
Charlotte, North Carolina 28208
November 28, 2000
Dear Ms. Beckstrom:
Subject: Project Name:
DWQ #:
COE #:
County:
South West High School
000582
200030806
Mecklenburg
The purpose of this letter is to notify you that the North Carolina Wetlands
Restoration Program (NCWRP) will accept payment for stream impacts associated
with the subject project in accordance with the Memorandum of Understanding
between the North Carolina Department of Environment and Natural Resources and
the U.S. Army Corps of Engineers dated November 4, 1998. Based on information
supplied by you in a fax dated November 16, 2000, an application requesting
authorization to impact 885 linear feet of stream has been submitted for the subject
project. The NCWRP will provide mitigation as specified in the 401 Water Quality
Certification and/or Section 404 permit (up to 1,770 linear feet of stream restoration)
for impacts associated with the subject project in Cataloging Unit 03050103 of the
Catawba River basin.
If you have any questions or need additional information, please contact
Crystal Braswell at [phone].
WETLANDS RESTORATION PROGRAM
1619 MAIL SERVICE CENTER, RALEIGH, NC 27699-1619
website: h2o. enr. state. nc. us PHONE [phone] FAX [phone]
AN EQUAL OPPORTUNITY / AFFIRMATIVE ACTION EMPLOYER - SO% RECYCLED/10% POST-CONSUMER PAPER
State of North Carolina.
Department of Environment
and Natural Resources
Division of Water Quality
Y?WAA
James B. Hunt, Jr., Governor NCDENR
Bill Holman, Secretary NORTH CAROLINA DEPARTMENT OF
Kerr T. Stevens, Director ENVIRONMENT AND NATURAL RESOURCES
?_4_, 2000
AOL*_ N-e?1124V/T 5 CW 5
o Je.
C?? t?e JA) C Q 2d 8 ,? I
Dear %4. t C?I
Re: Certification rsuant to Section 401 of the Federal Clean Water Act,
Proposed
" `WQC Project # 00 ? 2- COE # U 007 0?0(o
AQtIP County
A tached hereto is a copy of Certification N issued to the /dated
' DQ,ot ?=- ? 2000.
It we can be of further assistance, do not hesitate to contact us.
Sincerely,
Attachments
Kerr T. Stevens
cc: Wilmington District Corps of Engineers
Corps of Engineers Field Office
DWQ Regional Office
File Copy
Doug Huggett, Division of Coastal Management
Central Files 1'' /n1
` 1.?7?G.? ? Y?/'t i axJ? t?Yw1 R?N?M? IC?-S ?
5 ec 5 l r oYvk
Division of Water Quality • Non-Discharge Branch
1621 Mail Service Center Raleigh NC 27669-1621 Telephone [phone] FAX # [phone]
An Equal Opportunity Affirmative Action Employer • 50% recycled/10% post consumer paper
NORTH CAROLINA 401 WATER QUAL Y CERTIFICATION
THIS CERTIFICATION is issued in conformity w th the requirements of Section 401
Public Laws 92-500 and 95-217 of the United States and subject to the North Carolina Divisio? ?
of Water Quality (DWQ) Regulations in 15 NCAC 2H, ection .0500. It is issued to (( I?
resulting in ac t and linear feet ofd stream impact in
County ursu• nt to an ap licat''io fn filgd o the day of 2000 to
WQ_15 fl
The application provides adequa assurance that the discharge of fill material into the
waters of Creek n conjunction with the proposed development will not result
in a violation o applicable Water Quality Standards and discharge guidelines. Therefore, the
State of North Carolina certifies that this activity will not violate the applicable portions of
Sections 301, 302, 303, 306, 307 of PL 92-500 and PL 95-217 if conducted in accordance with
the application and conditions hereinafter set forth.
This approval is only valid for the purpose and design that you submitted in your
application, as described in the Public Notice. If you change your project, you must notify us
and send us a new application for a new certification. If the property is sold, the new owner must
be given a copy of the Certification and approval letter and is thereby responsible for complying
with all conditions. If total wetland fills for this project (now or in the future) exceed one acre
or total perennial stream impact exceeds 150 feet, compensatory mitigation may be required as
described in 15A NCAC 2H .0506 (h) (6) and (7). For this approval to be valid, you must follow
the conditions listed below. In addition, you should get any other federal, state or local permits
before you go ahead with your project including (but not limited to) Sediment and Erosion
control, Coastal Stormwater, Non-discharge and Water Supply watershed regulations.
Condition(s) of Certification:
Appropriate sediment and erosion control practices which equal or exceed those
outlined in the most recent version of two manuals, either the "North Carolina Sediment
and Erosion Control Planning and Design Manual" or the "North Carolina Surface
Mining Manual" (available from the Division of Land Resources in the DEHNR
Regional or Central Offices). The control practices shall be utilized to prevent
exceedances of the appropriate turbidity water quality standard (50 NTUs in all fresh
water streams and rivers not designated as trout waters; 25 NTUs in all lakes and
reservoirs, and all saltwater classes; and 10 NTUs in trout waters);
All sediment and erosion control measures placed in wetlands or waters shall be
removed and the natural grade restored after the Division of Land Resources has
released the project;
3. Measures shall be taken to prevent live or fresh concrete from coming into contact with
waters of the state until the concrete has hardened;
Should waste or borrow sites be located in wetlands or other waters, compensatory
mitigation will be required since it is a direct impact from road copstruction activi

Deed notifications or similar mechanisms shall be placed on all remaining
jurisdictional wetlands and waters , -mt4H -504eeT-?
to notify the state in order to assure compliance for future wetland and/or
water impact. These mechanisms shall be put in place within 30 days of the date
of this letter or the issuance of the 404 Permit (whichever is later).
Violations of any condition herein set forth shall result in revocation of this Certification
and may result in criminal and/or civil penalties. This Certification shall become null and void
unless the above conditions are made conditions of the Federal 404 and/or coastal Area
Management Act Permit. This Certification shall expire upon expiration of the 404 or CAMA
permit.
If this Certification is unacceptable to you have the right to an adjudicatory hearing upon
written request within sixty (60) days following receipt of this Certification. 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. Box 27447, Raleigh, N.C.
276 1 1-7447. If modifications are made to an original Certification, you have the right to an
adjudicatory hearing on the modifications upon written request within sixty (60) days following
receipt of the Certification. Unless such demands are made, this Certification shall be final and
binding.
This the?day of 2000
DIVISION OF WATER QUALITY
Kerr T. Stevens
I
WQC
IL'
State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
1 ? •
A 0% MOM
NC ENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT ANo NATURAL RESOURCES
12000
County
DWQ Project # _
APPROVAL of 401 Water Quality Certification and ADDITIONAL CONDITIONS, WRP
Dear Mr.
You have our approval, in accordance with the attached conditions and those listed below, to place fill
material in acres of wetlands and linear feet of streams for the purpose of at
in County, as you described in your application dated , 2000. After reviewing your
application, we have decided that this fill is covered by General Water Quality Certification Number _
This certification allows you to use Nationwide Permit Number _ when the Corps of Engineers issues it. In
addition, you should get any other federal, state or local permits before you go ahead with your project including
(but not limited to) Sediment and Erosion Control, Coastal Stormwater, Non-Discharge and Water Supply
Watershed regulations. This approval will expire when the accompanying 404 or CAMA permit expires unless
otherwise specified in the General Certification.
This approval is only valid for the purpose and design that you described in your application except as
modified below. If you change your project, you must notify us and you may be required to send us a new
application for a new certification. If the property is sold, the new owner must be given a copy of this Certification
and approval letter and is thereby responsible for complying with all conditions. If total wetland fills for this
project (now or in the future) exceed one acre, compensatory mitigation may be required as described in 15A NCAC
2H .0506 (h). For this approval to be valid, you must follow the conditions listed in the attached certification and
any additional conditions listed below.
1. Deed notifications or similar mechanisms shall be placed on all remaining jurisdictional wetlands and waters to notify the state in
order to assure compliance for future wetland and/or water impact. These mechanisms shall be put in place within 30 days of the
date of this letter or the issuance of the 404 Permit (whichever is later).
An additional condition is that a final, written stormwater management plan shall be approved by this
Office before the impacts specified in this Certification occur. The stormwater management plan
must include plans and specifications for stormwater management facilities designed to remove 85%
TSS according to the most recent version of the NC DENR Stormwater Best Management Practices
Manual. Also, before any permanent building is occupied at the subject site, the stromwater
?-., management facilities, as approved by this Office, must be constructed and operational, and the
is oTmw er plan, as approved by this Office, shall be im lem d?-- ----
r We underst ute to the Wetland Restoration Program in order to compensate
q or these impacts to wetlands and/or streams. In accordance with 15A NCAC 2R.0402, this contribution will
d satisfy our compensatory mitigation requirements under 15A NCAC 2H .0506(h). According to 15A NCAC 2H
0506(h), feet of restoration wih be required. Until the Wetland Restoration Program receives and clears your check
(made nayahle to: DENR - Wetland Restoration Program), wetland or stream fill shall not occur. Mr. Ron Ferrell
should be contacted at 919-733-5083 ext. 358 if you have any questions concerning the Wetland Restoration
Program. You have one month from the date of this Certification to make this payment. For accounting purposes,
Division of Water Quality • Non-Discharge Branch
1621 Mail Service Center Raleigh NC 27669-1621 Telephone [phone] FAX # [phone]
An Equal Opportunity Affirmative Action Employer • 50% recycled/10% post consumer paper
this Certification authoytzes the fill of a on-
anan ?_ feet of streams, in river and subbasin and r
.9(cr'es-'6Uri linear feet of stream
restoration are required. Please be aware that the Wetland Restoration Program (WRP) rules require
ding of acreage amounts t4 one-quarter acre increments (15A 2R .0503(b)). - -- -?
yo no 'accept any of the conditions of-Tis-certification, you may ask for an adjudicatory heari ng. You
must act within 60 days of the date that you receive this letter. To ask for a hearing, send a written petition which
conforms to Chapter 150B of the North Carolina General Statutes to the Office of
Administrative Hearings. P.O. Box 27447, Raleigh, N.C. 27611-7447. This certification and its conditions are final
and binding unless you ask for a hearing.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act.
If you have any questions, please telephone John Dorney at 919-733-9646.
Sincerely,
Kerr T. Stevens
Attachment
cc: Corps of Engineers Field Office
DWQ Regional Office
File copy
Central Files
Ron Ferrell; Wetland Restoration Program
Todd St. John
?, n C ? L
1?-
r ? l
NORTH CAROLINA-D ISON OF WATER QUALITY
401 WATER QU ITY CERTIFICATION
SUMMARY OF PERMITTED IMP CTS AND MITIGATION REQUIREMENTS
In acc dance with 15A NCAC 2 H.0500, has permission as outline below for the purpose(s)
of proposed . All activities associated with these authorized impacts must be conducted with the
conditions listed in the attached cetification transmitttal letter. THIS CERTIFICATION IS NOT VALID
WITHOUT THE ATTACHMENTS.
COMPENSATORY MITIGATION REQUIREMENT WETLAND RESTORATION PROGRAM
LOCATION ?QS?" ?? 1n_ ?c(,c
COUNTY:
BASIN/SUBBASIN 0 30 193?
As required by 15A NCAC 2H .0506. and the conditions of this certification, you are required to compensate
for the above impacts through the restoration, creation, enhancement or preservation of wetlands and surface waters
as outlined below prior to conducting any activities that impact or degrade the waters of the state.
Note: Acreage requirements proposed to be mitigated through the wetland Restoration Programs must be rounded
to one-quarter acre increments according to 15 2r.0503(b)
acres of Class WL wetlands
acres of riparian wetland
acres of non-riparian wetlands
_ acres of Class SWL wetlands
linear feet of stream channel
(other)
One of the options you have available to satisfy the compensatory mitigation requirements is through the
payment of a fee to the Wetlands Restoration Fund per NCAC 2R.0503. If you choose this option, please sign this
form and mail it to the Wetlands Restoration Fund at the address listed below. An invoice for the appropriate
amount of payment will be sent to you upon receipt of this form. PLEASE NOTE, THE ABOVE DIPACTS ARE
NOT AUTHORIZED UNTIL YOU RECEIVED NOTIFICATION THAT YOUR PAYMENT HAS BEEN
PROCESSED BY THE WETLANDS RESTORATION PROGRAM.
Signature Date
WETLANDS RESTORATION PROGRAM
DMSON OF WATER QUALITY
1619 Mail Service Center
RALEIGH, N.C. 27669-1619
[phone]
DEC 01 2000 09:54 FR LAW ENGINEERING
LAW
3 78638 TO 19197339959
LAWGIBB Group Me
t
FACSIMILE TRANSMITTAL SHEET
LAW ENGINEERING AND ENVIRONME 44 TAL SERVICES, INC.
2801 Yorkmont Roa
Charlotte, North Caroling 28208
P.01/02
To: Mr. Todd St. John From: Lis i Beckstrom
Company: DWQ-Wetlands Unit Date Trans itted: December 1, 2000
Phone Number: 919-733-9584 Telephone umber: 704-357-8600
Fax Number: 919-733-9959 Fax Num : 704-357-8638
Subject: SWHS - WRP Letter Hard Copy to follow: Yes © No
Number of pages transmitted (incl. cover): 2
CC:
®Urgent , For Review [Please Comment [)lease Reply []Please Recycle

COMMENTS:
Attached please find a copy of WRP's approval letter perml ng payment Into the fund for stream
impacts associated with the South West High School project. Please note that Rob Ridings (from
your oflke) will receive this letter from WRP and we ask th you attach his letter to our rile upon
receipt of that correspondence. Timeline is critical for this p ject and we would appreciate it if
you could start the process of issuing the 401 Certification u0on receipt of this fax.
Thanks!
Lisa
CONFIDENTIALITY NOTICE: This mcmSe is Intended poly for the use of the i ividuai or entity to which it is addressed, and may
contain information that is prlvileRed, confidential, and exempt from disclosure u er applicable low, If the reader of this message is
not the intended recipient, or the employee or agent responsible for delivering th msomee to the intended recipient. you are hereby
DEC 01 2000 09:54 FR LAW ENGINEERING
DWQ NCWRP 919 733 5321

3 78638 TO 19197339959 FX21ud
l n/30 '00 16:3/ NO.-ass Ue/ut
NORTht CAROLINA DEPARTMISNT OF
ENVI ONMENT AND NATURAL REBOURC93
DIVISION or WATER QIJAf.ITY
Ms. Lisa Beckstorm
LawGibb Group
2801 Xorkmont Road
Charlotte, North Carolina 28208
Dear Ms. Beckstrom:
November 28, 2000
Subject: Project amt: South West High School
IAWQ 000582
COE #: ? 200030806
Counry:1, Mecklenburg
The purpose of this letter is to notify ybu that the North Carolina Wetlands
Restoration Program (NCWRP) will accept p yment for stream impacts associated
with the subject project in accordancc with th Memorandum of Understanding
between the North Carolina Department of E> virontnent and Natural Resources and
the U.S. Army Corps of Engineers dated Nov ber 4, 1998. Based on information
supplied by you in a fax dated November 16, 000, an application requesting
authorization to impact 885 linear feet of sues' has been submitted for the subject
project. The NCWRP will provide mitigation has specified in the 401 Water Quality
Certification and/or Section 404 permit (up to X1,770 linear feet of stream restoration)
for impacts associated with the subject project[in Catsloging Unit 03050103 of the
Catawba River basin. 11
If you have any questions or need addl ona.l information, please contact
Crystal Braswell at [phone].
Sincerely,
Ronald E. Ferrell,
Program Manager

REF/cvb
ce: Rob Ridings, Wetlands/401 Unit
Steve Chapin, USACOE
Pace Colwell, DWQ-MRO
"fi1b' +
NOU 30 2000 15:32
r
WCTLAMOS AC!?TORATION tROOAAM
1010 Mw16 09Rv1i6 60•T91t, 11A6C10M. /1C. a7099.1011•
M/CO"1{R: r1;0, /.ttata_fIC.IJY PM*11! 019-773•990• PAX 'a1 s.Yaa•S3a1
AN C4WAL OVIfo ATNNIT'Y / ACpgNA71V1K AGTIONIMP64pyck - $0% 'Vogre6co/10% Poor-phf YM6/1 PAALR
FFFh
919 733 5321 PAGE.02
** TOTAL PAGE.02 **

NOV 01 2000 15:21 FR LAW ENGINEERING 3t>78638 TO 19197339959
C
ion
LAWGIUP
?w
FACSIMILE TRANSMITTAL SHEET
i
LAW ENGINEERING AND ENVIRONMPTAL SERVICES, INC.
2801 Yorkmont Road
Charlotte, Nortb Carolln$ 28208
P.01/02
i
To: From: ?.d..& R
E `r
Company: Date Trinamittedt )VA ?.
Phone Number: - q ( U f 5 $i
[phone]
Fax Number. q33 • I g 51
Subject: .
No. pages traosmitted (Incl. toyer)
CCs
Fax Number i [phone]
Hard C ` to Follow: Yee
No
0,0 nt 114rRwirw 13 Please Comment
COMMENTS:
Cl Plea* Reply CI Please Roryck
CONFIDENTIAL IXX NOTICE: 'nis message is intended only for w I use of the Individual or entity to which It Is
addressed, cad may coahla {piOrmAtien that In priViletld, conlidentlrr and exempt from disclosure under appikabk
law. If the reader of this message is not the intended recipient, or the a playso or agent responsible far delivering the
message to the intended recipient, you ore hereby notified that any 1memiaotioa. distribution, or copying of this
communication is strictly prohibited. If you hove received this commun ation In error, please notify so immediately by
telephone and return the original message to us of the above address via t, a US postal Service. Thank you.
If transmission Is not received in good order, pease all
i
NOV 01 2000 15:22 FR LAW ENGINEERING
Nee
3+578638 TO 19197339959 P.02102
i
NORTH CAROLINA DEPARTMENT OF
BN1?tRONMSNT AND NATURAL RssOURCICS
DIVISION OF WATSR QUALITY
October 26, 2000

Michael Iagnocco
Law Engineering and Environmental Pervices
2801 Yorkmount Road
Charlotte, NC 28208
Re: SCI File #01-E-4300-0166; ENR project #1028
South West High School, Ch rlotte-Mecklenburg Schools,
Mecklenburg County
l
Dear Mr. Iagnocco:
On October 23, 2000, the State learinghouse deemed the North
Carolina Environmental Policy Act on the above project complete (see
attached letter from the Clearinghouse), It is now acceptable to proceed with
Your permit applications through the Di Asion of Water Quality for the
Proposed Project. No further actions ot, the Environmental Assessment are
required. I
If there is anything I can assist y u with, please do not hesitate to give
me a call at [phone], ext. 366,
1
34>cerely>
Mil Rhodes
Int SEPA Coordinator
enclosure (SCH 1tr)
cc: John Dorney, Wetlands Unit
Rcx Gleason, Mooresville Regio Office Ea.
101> MAIL f.[R Ice CiNTCR, RAL619,t of7
t•rI1ATIVACTION UN AN M4uAL OrroRTUNITY / A r s rMlnc NORTN CAROLINA 27609-1
Ley" R10.7itt•a0?3 FAX ptf-7Z7•pOtY
aO? "CYCLED/10% rpOT.COMryMlA rAIRR
** TOTAL PAGE.02 **
s
ern
NCDENR
DIVISION OF WATER QUALITY
September 6, 2000
Memorandum To: John Dorney
From: Todd St. John r
Subject: South West High Scho I
DWQ# 000582
Mecklenburg County
I have reviewed the stormwater management plan for the subject high school. The
plans lack an Operation and Maintenance Agreement and 3:1 side slopes below the
vegetative shelf. These items could be easily corrected; however, because the facility is a
school it may be preferable to construct extended detention wetlands. The pond designs
have adequate surface area to be converted to wetlands. Also, wetlands are better at
removing nutrients and (more importantly from my perspective) are much shallower and
less "attractive" to potential swimmers. The environmental impacts of this project are
significant considering the amount of perennial stream proposed to be filled and, as such,
wetlands may be justifiable. Do you think we could require wetlands?
l-?

ti

< 9? , I \
A

,.vvi L( C45uW
T
qok 1?-v

wi'k 5ca.
"I.A.A JA
Project No. DWQ 0.00582
Project Name: South West HS
pl
SUBMITTED DESIGN: REQUIRED DESIGN:
status
elevations
Bottom of Basin (ft) 651
Permanent Pool (ft) 656 5 ft. depth ok
Temporary Pool (ft) 660.32 4.32 ft. depth ok
areas
Permanent Pool SA (sq ft)
32670
14886 sq. ft. (based on 3') ok
Drainage Area (ac) 16.16
Impervious Area (ac) 8.34 51.6 %

volumes
Permanent Pool (cu ft) 0
Temporary Pool (cu ft) 29315 30180 cu. ft. check temp(
Forebay (cu 1't) #DIV/0! % #DIV/0!
other parameters
SA/DA 0 2.11
Orifice Diameter (in) 4 0.62 cfs drawdown
Design Rainfall (in) 1 0.5 day drawdown check drawl
Linear Interpolation of Correct SA/DA***
Impervious
Next Lowest 50
Project Impervious 51.6
Next Highest 60
5 ft. Permanent Pool Depth
SA/DA from Table
2.06
2.11
2.4
Project No. DWQ 0.00582
Project Name: South West HS
p2
SUBMITTED DESIGN: REQUIRED DESIGN:
elevations status
Bottom of Basin (ft) 664
Permanent Pool (ft) 668.7 4.7 ft. depth ok
Temporary Pool (ft) 674.86 6.16 ft. depth ok
areas
Permanent Pool SA (sq ft) 27007.2 18463 sq. ft. (based on 3') ok
Drainage Area (ac) 21.36
Impervious Area (ac) 10.19 47.7 % -
volumes
Permanent Pool (cu ft) 0
Temporary Pool (cu ft) 38768 37168 cu. ft. ok
Forebay (cu ft) #DIV/0! % #DIV/0!
other parameters
SA/DA 0 1.98 -
Orifice Diameter (in) 3 0.41 cfs drawdown -
Design Rainfall (in) 1 1.1 day drawdown check drawe
Linear Interpolation of Correct SA/DA***
4.7 ft. Permanent Pool Depth
% Impervious SA/DA from Table
Next Lowest 40 1.73
Project Impervious 47.7 1.98
Next Highest 50 2.06
4V

it
BMP Wet Pond Calculations
Proposed Southwest High School
lo3o Nations Ford Road
Charlotte, North Carolina
ccri
JV, :' 1
- C
e
a
u
Prepared by:
H. Kevin Gorman, RLA
Little and Associates Architects
5815 Westpark Drive
Charlotte, NC 28217
704.525.6350
Project 02-9330-00
Oct. 19, 1999
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ON #i
Little&AssociatesArdhitects- -- -
5815 Westpark Drive
Charlotte, NC
28217
Telephone
704.525.6350
Facsimile
704.561.8710

Job 02-T' yjf0'
Sheet No Of
Calculated By WKP- Date
Checked By Date
Scale
.
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Job File: .\sample\029330.PPK
Rain Dir: .\util\
--------------------------
--------------------------
JOB TITLE
SOUTHWEST HIGH SCHOOL
BMP POND #1 DRAIN TIME
CALCULATION FOR 1" OF
RAIN OVER IMPERVIOUS AREA
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 10:51:36 Date: 08-02-1999
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Table of Contents
Table of Contents
*********************** TIME VS.ELEV ***********************
BMP1 OUT Time-Elev .......................... 1.01
************************ TIME VS.VOL ***********************
BMP1 OUT Time vs. Volume .................... 2.01
f
*********************** POND VOLUMES ***********************
BMP1............ Vol: Elev-Area ..................... 3.01
******************** OUTLET STRUCTURES *********************
BMP1............ Outlet Input Data .................. 4.01
Individual Outlet Curves ........... 4.05
Composite Rating Curve ............. 4.12
*********************** POND ROUTING ***********************
BMP1............ Pond E-V-Q Table ................... 5.01
Pond Routing Summary ............... 5.02

SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 13:38:55 Date: 10-19-1999
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Type.... Time-Elev Page 1.01
Name.... BMP1 OUT
File.... .\sample\029330.PPK _
TIME vs. ELEVATION (ft)
Time Output Time increment = 30.00 min
min Time on left represents time for first value in each row.
--------- -----
.00 656.85 656.83 656.81 656.80 656.78
150.00 656.76 656.75 656.73 656.72 656.70
300.00 656.68 656.67 656.65 656.64 656.62
450.00 656.61 656.60 656.58 656.57 656.55
600.00 656.54 656.53 656.52 656.50 656.49
750.00 656.48 656.47 656.45 656.44 656.43
900.00 656.42 656.41 656.40 656.39 656.38
1050.00 656.37 656.36 656.36 656.35 e56.34
1200.00 656.33 656.32 656.32 656.31 656.30
1350.00 656.30 656.29 656.28 656.28 656.27
1500.00 656.26 656.26 656.25 656.25 656.24
1650.00 656.24 656.23 656.23 656.22 656.22
1800.00 656.21 656.21 656.20 656.20 656.20
1950.00 656.19 656.19 656.18 656.18 656.18
2100.00 656.17 656.17 656.16 656.16 656.16
2250.00 656.15 656.15 656.15 656.14 656.14
2400.00 656.14 656.14 656.13 656.13 656.13
2550.00 656.12 656.12 656.12 656.12 656.11
2700.00 656.11 656.11 656.11 656.10 656.10
2850.00 656.10 656.10 656.10 656.09 656.09
3000.00 656.09 656.09 656.09 656.08 656.08
3150.00 656.08 656.08 656.08 656.08 656.07
3300.00 656.07 656.07 656.07 656.07 656.07
3450.00 656.06 656.06 656.06 656.06 656.06
3600.00 656.06 656.06 656.06 656.05 656.05
3750.00 656.05 656.05 656.05 656.05 656.05
3900.00 656.05 656.05 656.04 656.04 656.04
4050.00 656.04 656.04 656.04 656.04 656.04
4200.00 656.04 656.04 656.04 656.04 656.03
4350.00 656.03 656.03 656.03 656.03 656.03
4500.00 656.03 656.03 656.03 656.03 656.03
4650.00 656.03 656.03 656.03 656.03 656.03
4800.00 656.02 656.02 656.02 656.02 656.02
4950.00 656.02 656.02 656.02 656.02 656.02
5100.00 656.02 656.02 656.02 656.02 656.02
5250.00 656.02 656.02 656.02 656.02 656.02
5400.00 656.02 656.02 656.02 656.01 656.01
5550.00 656.01 656.01 656.01 656.01 656.01
5700.00 656.01 656.01 656.01 656.01 656.01
5850.00 656.01 656.01 656.01 656.01 656.01
6000.00 656.01 656.01 656.01 656.01 656.01
6150.00 656.01 656.01 656.01 656.01 656.01
6300.00 656.01 656.01 656.01 656.01 656.01
6450.00 656.01 656.01
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 13:38:55 Date: 10-19-1999
Type.... Time vs. Volume
Name.... BMP1 OUT
File.... .\sample\029330.PPK
TIME vs. VOLUME (ac-ft)
Page 2.01
Time Output Time increment = 30.00 min
min Time on left represents time
--------------- for first
---------- value in
---------- each row.
----------
---------
.00 ----------------
.680 -
.665 .650 .636 .623
150.00 .609 .596 .582 .569 .556
300.00 .543 .531 .518 .506 .494
450.00 .483 .471 .460 .449 .438
600.00 .427 .417 .406 .396 .386
750.00 .376 .366 .357 .348 .339
900.00 .331 .323 .315 .307 .300
1050.00 .292 .285 .278 .272 .265
1200.00 .259 .253 .247 .242 .236
1350.00 .231 .225 .220 .216 .211
1500.00 .206 .202 .198 .193 .189
1650.00 .185 .181 .177 .173 .170
1800.00 .166 .162 .159 .155 .152
1950.00 .149 .146 .142 .139 .136
2100.00 .133 .130 .128 .125 .122
2250.00 .120 .117 .115 .112 .110
2400.00 .107 .105 .103 .100 .098
2550.00 .096 .094 .092 .090 .088
2700.00 .086 .084 .083 .081 .079
2850.00 .077 .076 .074 .073 .071
3000.00 .069 .068 .066 .065 .064
3150.00 .062 .061 .060 .058 .057
3300.00 .056 .055 .054 .052 .051
3450.00 .050 .049 .048 .047 .046
3600.00 .045 .044 .043 .042 .041
3750.00 .040 .040 .039 .038 .037
3900.00 .036 .035 .035 .034 .033
4050.00 .032 .032 .031 .030 .030
4200.00 .029 .029 .028 .027 .027
4350.00 .026 .026 .025 .025 .024
4500.00 .023 .023 .022 .022 .022
4650.00 .021 .021 .020 .020 .019
4800.00 .019 .018 .018 .018 .017
4950.00 .017 .017 .016 .016 .016
5100.00 .015 .015 .015 .014 .014
5250.00 .014 .013 .013 .013 .013
5400.00 .012 .012 .012 .011 .011
5550.00 .011 .011 .011 .010 .010
5700.00 .010 .010 .009 .009 .009
5850.00 .009 .009 .009 .008 .008
6000.00 .008 .008 .008 .007 .007
6150.00 .007 .007 .007 .007 .007
6300.00 .006 .006 .006 .006 .006
6450.00 .006 .006
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 13:38:55 Date: 10-19-1999
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Type.... Vol: Elev-Area
Name.... BMP1
File.... .\sample\029330.PPK
Page 3.01
Elevation Planimeter Area Al+A2+sgr(Al*A2) Volume Volume Sum
(ft) (sq.in) (acres)
------------ (acres)
---------------- (ac-ft)
---------- (ac-ft)
-------------
-----------
656.00 ----------
----- .7700 .0000 .000 .000
657.00 . ----- .8400 2.4142 .805 .805
658.00 ----- .9100 2.6243 .875 1.680
659.00 ----- .9800 2.8344 .945 2.624
660.00 ----- 1.0200 2.9998 1.000 3.624
660.29 ----- 1.0300 3.0750 .297 3.921
POND VOLUME EQUATIONS
b
* Incremental volume computed by the Conic Method for Reservoir Volumes.
Volume = (1/3) * (EL2-ELl) * (Areal + Areal + sq.rt.(Area1*Area2))
where: EL1, EL2 = Lower and upper elevations of the increment
Areal,Area2 = Areas computed for EL1, EL2, respectively
Volume = Incremental volume between ELl and EL2
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 13:38:55 Date: 10-19-1999

Type.... Outlet Input Data Page 4.01
Name.... BMP1
File.... .\sample\029330.PPK
REQUESTED POND WS ELEVATIONS:
Min. Elev.= 656.00 ft
Increment = .25 ft
Max. Elev.= 660.29 ft
**********************************************
OUTLET CONNECTIVITY
**********************************************
s
---> Forward Flow Only (Upstream to DnStream)
<--- Reverse Flow Only (DnStream to Upstream)
< --- > Forward and Reverse Both Allowed
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Structure No. Outfall
------- E1, ft
--------- E2, ft
---------
-----------------
Weir-Rectangular ----
W2 ---> TW 659.790 660.290
Weir-Rectangular W1 ---> C 657.000 660.290
Inlet Box IB ---> C 658.350 660.290
Orifice-Circular 01 ---> C 656.000 660.290
Culvert-Circular C ---> TW 651.000 660.290
TW SETUP, DS Channel
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 13:38:55 Date: 10-19-1999
Type.... Outlet Input Data
Name.... BMP1
File.... .\sample\029330.PPK
OUTLET STRUCTURE INPUT DATA
Structure ID
Structure Type
--------------
# of Openings
Crest Elev.
Weir Length
Weir Coeff.
Weir TW effects (Use adjustment equation)
Structure ID
Structure Type
--------------
# of Openings
Crest Elev.
Weir Length
Weir Coeff.
W2
Weir-Rectangular
----------------
1
659.79 ft
10.00 ft
3.100000
W1
Weir-Rectangular
----------------
1
657.00 ft
1.00 ft
3.100000
Weir TW effects (Use adjustment equation)
Page 4.02
4
Structure ID = IB
Structure Type = Inlet Box
-----------------
# of Openings -------------
= 1 ------
Invert Elev. = 658.35 ft
Orifice Area = 4.0000 sq.ft
Orifice Coeff. _ .600
Weir Length = 5.00 ft
Weir Coeff. = 3.100
K, Submerged = .000
K, Reverse = 1.000
Kb,Barrel = .000000 (per ft of full flow)
Barrel Length = .00 ft
Mannings n = .0000
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 13:38:55 Date: 10-19-1999
Type.... Outlet Input Data Page 4.03
Name.... BMP1
File.... .\sample\029330.PPK
OUTLET STRUCTURE INPUT DATA
Structure ID = 01
Structure Type = Orifice-Circular
------------------------------------
## of Openings = 1
Invert Elev. = 656.00 ft
Diameter = .3330 ft
Orifice Coeff. _ .610
6
Structure ID, = C
Structure Type = Culvert-Circular
------------------
No. Barrels ------------
= 1 ------
Barrel Diameter = 1.5000 ft
Upstream Invert = 651.00 ft
Dnstream Invert = 649.50 ft
Horiz. Length = 75.00 ft
Barrel Length = 75.01 ft
Barrel Slope = .02000 ft/ft
OUTLET CONTROL DATA...
Mannings n = .0150
Ke = .5000 (forward entrance loss)
Kb = .024249 (per ft of full flow)
Kr = .5000 (reverse entrance loss)
HW Convergence = .001 +/- ft
INLET CONTROL DATA...
Equation form = 1
Inlet Control K = .0098
Inlet Control M = 2.0000
Inlet Control c = .03980
Inlet Control Y = .6700
T1 ratio (HW/D) = 1.150
T2 ratio (HW/D) = 1.297
Slope Factor = -.500
Calc inlet only = Yes
Use unsubmerged inlet control Form 1 equ. below T1 elev.
Use submerged inlet control Form 1 equ. above T2 elev.
In transition zone between unsubmerged and submerged inlet control,
interpolate between flows at T1 & T2...
At T1 Elev = 652.73 ft ---> Flow = 7.58 cfs
At T2 Elev = 652.95 ft ---> Flow = 8.66 cfs
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 13:38:55 Date: 10-19-1999
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Type.... Outlet Input Data Page 4.04
Name.... BMP1
File.... .\sample\029330.PPK
OUTLET STRUCTURE INPUT DATA
Structure ID = TW
Structure-Type = TW SETUP, DS Channel
------------------------------------
FREE OUTFALL CONDITIONS SPECIFIED
CONVERGENCE TOLERANCES...
Maximum Iterations= 30
Min. TW tolerance = .01 ft
Max. TW tolerance = .01 ft
Min. HW tolerance = .01 ft
Max. HW tolerance = .01 ft
Min. Q tolerance = .10 cfs
Max. Q tolerance = .10 cfs
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 13:38:55 Date: 10-19-1999
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Type.... Individual Outlet Curves
Name.... BMP1
File.... .\sample\029330.PPK
RATING TABLE FOR ONE OUTLET TYPE
Structure ID = W2 (Weir-Rectangular)
--------------------------------------
Upstream ID = (Pond Water Surface)
DNstream ID = TW (Pond Outfall)
WS Elev,Device Q
WS Elev. Q
ft cfs
-
--------
656.00 ------
.00
656.25 .00
656.50 .00
656.75 .00
657.00 .00
657.25 .00
657.50 .00
657.75 .00
658.00 .00
658.2'5 .00
658.35 .00
658.50 .00
658.75 .00
659.00 .00
659.25 .00
659.50 .00
659.75 .00
659.79 .00
660.00 2.98
660.25 9.67
660.29 10.96
Tail Water
TW Elev Converge
ft +/-ft
-------- -----
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Notes
--------------------------
Computation Messages
Page 4.05
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WS below an invert; no flow.
WS below an invert; no flow.
WS below an invert; no flow.
WS below an invert; no flow.
WS below an invert; no flow.
WS below an invert; no flow.
WS below an invert; no flow.
WS below an invert; no flow.
WS below an invert; no flow.
WS below an invert; no flow.
WS below an invert; no flow.
WS below an invert; no flow.
WS below an invert; no flow.
WS below an invert; no flow.
WS below an invert; no flow.
WS below an invert; no flow.
WS below an invert; no flow.
WS below an invert; no flow.
H=.21; Htw=.00; Qfree=2.98;
H=.46; Htw=.00; Qfree=9.67;
H=.50; Htw=.00; Qfree=10.96;
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 13:38:55 Date: 10-19-1999
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Type.... Individual Outlet Curves Page 4.06
Name.... BMP1
File.... .\sample\029330.PPK
RATING TABLE FOR ONE OUTLET TYPE
Structure ID = W1 (Weir-Rectangular)
--------------------------------------
Upstream ID = (Pond Water Surface)
DNstream ID = C (Culvert-Circular)
Pond WS. Device (into) Converge Next DS HGL Q SUM DS Chan. TW
Elev. Q HW HGL DS HGL DS HGL Error Error TW Error
ft cfs ft ft ft +/-ft +/-cfs ft +/-ft
---
--56.00 ----.00 .. . --- ---•••-- --•••-- --•• • - --••• Free Outfall
6 WS below an invert; no flow.
656.25 .00 ... .. .•• ... Free Outfall
WS below an invert; no flow.
656.50 .00 ... ... ... ... ... Free Outfall
WS below an invert; no flow.
656.75 .00 ... ... .•• ••. ••. Free Outfall
WS below an invert; no flow.
657.00 .00 ... ... ... ... Free Outfall
WS below an invert; no flow.
657.25 .37 657.25 Free 651.44 .000 .000 Free Outfall
H=.25; Htw=.00; Qfree=.37;
657.50 .99 657.50 Free 651.61 .000 .000 Free Outfall
H=.50; Htw=.00; Qfree=.99;
657.75 1.71 657.75 Free 651.78 .000 .000 Free Outfall
H=.75; Htw=.00; Qfree=1.71;
658.00 2.48 658.00 Free 651.93 .000 .000 Free Outfall
H=1.00; Htw=.00; Qfree=2.48;
658.25 3.25 658.25 Free 652.08 .000 .000 Free Outfall
H=1.25; Htw=.00; Qfree=3.25;
658.35 3.55 658.35 Free 652.13 .000 .000 Free Outfall
H=1.35; Htw=.00; Qfree=3.55;
658.50 3.99 658.50 Free 652.37 .000 .000 Free Outfall
H=1.50; Htw=.00; Qfree=3.99;
658.75 4.66 658.75 Free 653.09 .000 .000 Free Outfall
H=1.75; Htw=.00; Qfree=4.66;
659.00 5.26 659.00 Free 654.52 .000 .000 Free Outfall
H=2.00; Htw=.00; Qfree=5.26;
659.25 5.75 659.25 Free 656.91 .000 .000 Free Outfall
H=2.25; Htw=.00; Qfree=5.75;
659.50 .00 659.50 659.50 659.50 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
659.75 .00 659.75 659.75 659.75 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
659.79 .00 659.79 659.79 659.79 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
660.00 .00 660.00 660.00 660.00 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
660.25 .00 660.25 660.25 660.25 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
660.29 .00 660.29 660.29 660.29 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
1
1
1
1
1
1
1
1
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SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 13:38:55
Date: 10-19-1999-
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Type.... Individual Outlet Curves Page 4.07
Name.... BMP1
File.... .\sample\029330.PPK
RATING TABLE FOR ONE OUTLET TYPE
Structure ID = IB (Inlet Box)
-------------
Upstream ID --------
= (P ---------
ond Water --------
Surface)
DNstream ID = C (Culvert-Ci rcular)
Pond WS. Device (into) Co nverge Next DS HGL Q SUM DS Chan. TW
Elev. Q HW HGL D S HGL DS HGL Error Error TW Error
ft cfs ft ft ft +/-ft +/-cfs ft +/-ft
----
--
656.00 --
--
.00 ---
-- -
-
... --- --
---
... ------ ------

... ... --
-
Free --
-------
6
Outfall
WS below an invert; no flow.
656.25 .00 ... .. ... ... Free Outfall
WS below an invert; no flow.
656.50 .00 ... ... ... ... ... Free Outfall
WS below an invert; no flow.
656.75 .00 ... ... ... ... ... Free Outfall
WS below an invert; no flow.
657.00 .00 ... ... .. ... ... Free Outfall
WS below an invert; no flow.
657.25 .00 ... ... ... Free Outfall
WS below an invert; no flow.
657.50 .00 ... ... Free Outfall
WS below an invert; no flow.
657.75 .00 ... ... ... ... Free Outfall
WS below an invert; no flow.
658.00 .00 ... ... ... ... ... Free Outfall
WS below an invert; no flow.
658.25 .00 ... ... ... ... ... Free Outfall
WS below an invert; no flow.
658.35 .00 ... ... ... ... ... Free Outfall
WS below an invert; no flow.
658.50 .90 658.50 Free 652.37 .000 .000 Free Outfall
Weir: H =.15
658.75 3.92 658.75 Free 653.09 .000 .000 Free Outfall
Weir: H =.40
659.00 8.12 659.00 Free 654.52 .000 .000 Free Outfall
Weir: H =.65
659.25 13.23 659.25 Free 656.91 .000 .000 Free Outfall
Weir: H =.90
659.50 24.27 659.50 659.50 659.50 .000 .000 Free Outfall
DS HGL+Loss > crest: Flow set to Downstream outlet.
659.75 24.68 659.75 659.75 659.75 .000 .000 Free Outfall
DS HGL+Loss > crest: Flow set to Downstream outlet.
659.79 24.74 659.79 659.79 659.79 .000 .000 Free Outfall
DS HGL+Loss > crest: Flow set to Downstream outlet.
SIN: HOMOL09086 52 LITTLE & ASSOCIATES ARCHI TECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 13:38:55 Date: 10-19-1999
r
r
r
r
r
r
r
Type.... Individual Outlet Curves
Name.... BMP1
File.... .\sample\029330.PPK
RATING TABLE FOR ONE OUTLET TYPE
Page 4.08
Structure ID = IB (Inlet Box)
-------------
Upstream- ID ------
= -----------
(Pond Water --------
Surface)
DNstream ID = C (Culvert-Ci rcular)
Pond WS. Device (into) Converge Next DS HGL Q SUM DS Chan. TW
Elev. Q HW HGL DS HGL DS HGL Error Error TW Error
ft cfs ft ft ft +/-ft +/-cfs ft +/-ft
--------
660.00 -------
25.07 - ------- --
660.00 ------
660.00 -------
660.00 ------ ------
.000 .000 ------- -------
Free Outfall
DS HGL+Loss > cres t: Flow set to Downstream outlet.
660.25 25.46 660.25• 660.25 660.25 .000 .000 Free Outfall
DS HGL+Loss > crest: Flow set to Downstream outlet.
660.29 25.52 660.29 660.29 660.29 .000 .000 Free Outfall
DS HGL+Loss > crest: Flow set to Downstream outlet.
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 13:38:55 Date: 10-19-1999

Type.... Individual Outlet Curves
Name.... BMP1
File.... .\sample\029330.PPK
Page 4.09
RATING TABLE FOR ONE OUTLET TYPE
Structure ID = 01 (Orifice-C ircular)
------------
Upstream- ID -------
= -----------
(Pond Water --------
Surface)
DNstream ID = C (Culvert-Ci rcular)
Pond WS. Device (into) C onverge Next DS HGL Q SUM DS Chan. TW
Elev. Q HW HGL DS HGL DS HGL Error Error TW Error
ft cfs ft ft ft +/-ft +/-cfs ft +/-ft
----
--
656.00 --
--
.00 - ---
-- -
... --
---
... --
---
... ------
... ------
... --
-
Free --
-------
Outfall
WS below an invert ; no flow.
656.25 .10 656.25 • Free 651.14 .000 .000 Free Outfall
CRIT.DEPTH CONTROL Vh= .073f t Dcr= .177ft CRIT.DEPTH
656.50 .25 656.50 Free 651.23 .000 .000 Free Outfall
H =.33
656.75 .33 656.75 Free 651.27 .000 .000 Free Outfall
H =.58
657.00 .39 657.00 Free 651.29 .000 .000 Free Outfall
H =.83
657.25 .44 657.25 Free 651.44 .000 .000 Free Outfall
H =1.08
657.50 .49 657.50 Free 651.61 .000 .000 Free Outfall
H =1.33
657.75 .54 657.75 Free 651.78 .000 .000 Free Outfall
H =1.58
658.00 .58 658.00 Free 651.93 .000 .000 Free Outfall
H =1.83
658.25 .62 658.25 Free 652.08 .000 .000 Free Outfall
H =2.08
658.35 .63 658.35 Free 652.13 .000 .000 Free Outfall
H =2.18
658.50 .65 658.50 Free 652.37 .000 .000 Free Outfall
H =2.33
658.75 .68 658.75 Free 653.09 .000 .000 Free Outfall
H =2.58
659.00 .72 659.00 Free 654.52 .000 .000 Free Outfall
H =2.83
659.25 .65 659.25 656.90 656.91 .004 .000 Free Outfall
H =2.35
659.50 .00 659.50 659.50 659.50 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
659.75 .00 659.75 659.75 659.75 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
659.79 .00 659.79 659.79 659.79 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
660.00 .00 660.00 660.00 660.00 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
660.25 .00 660.25 660.25 660.25 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
660.29 .00 660.29 660.29 660.29 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.

1
1
i
1
1

SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 13:38:55
Date: 10-19-1999-
4
Type.... Individual Outlet Curves
Name.... BMP1
File.... .\sample\029330.PPK
Pond WS.
Elev.
ft
656.00
656.25
656.50
656.75
657.00
657.25
657.50
657.75
658.00
658.25
658.35
658.50
658.75
659.00
659.25
659.50
659.75
659.79
RATING TABLE FOR ONE OUTLET TYPE
Page 4.10

Structure ID = C (Culvert-Circular)
--------------------------------------
Mannings open channel maximum capacity: 13.85 cfs
UPstream ID's= W1, IB, 01
DNstream ID = TW (Pond Outfall)
Device (into) Converge Next DS HGL Q SUM DS Chan. TW
Q HW HGL DS HGL DS HGL Error Error TW Error
cfs ft ft ft +/-ft +/-cfs ft +/-ft
s
-------- ------- -------- ------- ------ ------ ------- -------
.00 651.00 Free Free .000 .000 Free Outfall
.10 651.14 Free
INLET CONTROL...
.25 651.23 Free
INLET CONTROL...
.33 651.27 Free
INLET CONTROL...
.39 651.29 Free
INLET CONTROL...
.81 651.44 Free
INLET CONTROL...
1.48 651.61 Free
INLET CONTROL...
2.25 651.78 Free
INLET CONTROL...
3.06 651.93 Free
INLET CONTROL...
3.86 652.08 Free
INLET CONTROL...
4.18 652.13 Free
INLET CONTROL...
5.54 652.37 Free
INLET CONTROL...
9.27 653.09 Free
INLET CONTROL...
14.10 654.52 Free
INLET CONTROL...
19.64 656.91 Free
INLET CONTROL...
24.27 659.50 Free
INLET CONTROL...
24.68 659.75 Free
INLET CONTROL...
24.74 659.79 Free
INLET CONTROL...
Free .000 .000
Equ.l: HW =.14 do=.117
Free .000 .000
Equ.1: HW =.23 do=.182
Free .000 .000
Equ.l: HW =.27 do=.211
Free .000 .000
Equ.l: HW =.29 do=.230
Free .000 .000
Equ.l: HW =.44 do=.335
Free .000 .000
Equ.l: HW =.61 do=.456
Free .000 .000
Equ.l: HW =.78 do=.567
Free .000 .000
Equ.l: HW =.93 do=.665
Free .000 .000
Equ.l: HW =1.08 do=.752
Free .000 .000
Equ.l: HW =1.13 do=.783
Free .000 .000
Equ.l: HW =1.37 do=.908
Free .000 .000
Submerged: HW =2.09
Free .000 .000
Submerged: HW =3.52
Free .000 .000
Submerged: HW =5.91
Free .000 .000
Submerged: HW =8.50
Free .000 .000
Submerged: HW =8.75
Free .000 .000
Submerged: HW =8.79
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 13:38:55
Free Outfall
Ac=.0639
Free Outfall
Ac=.1216
Free Outfall
Ac=.1512
Free Outfall
Ac=.1715
Free Outfall
Ac=.2948
Free Outfall
Ac=.4542
Free Outfall
Ac=.6113
Free Outfall
Ac=.7565
Free Outfall
Ac=.8863
Free Outfall
Ac=.9335
Free Outfall
Ac=1.1184
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Date: 10-19-1999

Type.... Individual Outlet Curves
Name.... BMP1
File.... .\sample\029330.PPK
Pond WS.
Elev.
ft
660.00
660.25
660.29
RATING TABLE FOR ONE OUTLET TYPE
Page 4.11
Structure ID = C (Culvert-Circular)
--------------------------------------
Mannings open channel maximum capacity: 13.85 cfs
UPstream ID's= W1, IB, 01
DNstream ID = TW (Pond Outfall)
Device (into) Converge Next
Q HW HGL DS HGL DS HGL
cfs ft ft ft
-------- ------- -------- -------
25.07 660.00 Free Free
INLET CONT.ROL... Submerged:
25.46 660.25 Free Free
INLET CONTROL... Submerged:
25.52 660.29 Free Free
INLET CONTROL... Submerged:
DS HGL Q SUM DS Chan. TW
Error Error TW Error
+/-ft +/-cfs ft ; +/-ft
------ ------ ------- -------
.000 .000 Free Outfall
HW =9.00
.000 .000 Free Outfall
HW =9.25
.000 .000 Free Outfall
HW =9.29
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 13:38:55
Date: 10-19-1999

Type.... Composite Rating Curve
Name.... BMP1

r
r
r
r
1
1
1
1
File.... .\sample\029330.PPK
WS Elev, Total Q
Elev. Q
ft cfs
--------
656.00 -------
.00
656.25 .10
656.50 .25
656.75 .33
657.00 .39
657.25 .81
657.50 1.48
657.75 2.25
658.00 3.06
658.25 3.86
658.35 4.18
658.50 5.54
658.75 9.27
659.00 14.10
659.25 19.64
659.50 24.27
659.75 24.68
659.79 24.74
660.00 28.05
660.25 35.13
660.29 36.48
***** COMPOSITE OUTFLOW SUMMARY ****
-------- Converge
TW Elev Error
ft +/-ft
-------- -----
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Notes
-------------------------
Contributing Structures
(no Q: W2, W1,IB,01,C)
01,C (no Q: W2, W1,IB)
01,C (no Q: W2,W1,IB)
01,C (no Q: W2, W1,IB)
01,C (no Q: W2, W1,IB)
W1,01,C (no Q: W2,IB)
W1,01,C (no Q: W2,IB)
W1,01,C (no Q: W2,IB)
W1,01,C (no Q: W2,IB)
W1,01,C (no Q: W2,IB)
W1,01,C (no Q: W2,IB)
W1,IB,O1,C (no Q: W2)
W1,IB,O1,C (no Q: W2)
W1,IB,O1,C (no Q: W2)
W1,IB,O1,C (no Q: W2)
IB,C (no Q: W2,W1,01)
IB,C (no Q: W2,W1,01)
IB,C (no Q: W2,W1,01)
W2,IB,C (no Q: W1,01)
W2,IB,C (no Q: W1,01)
W2,IB,C (no Q: W1,01)
Page 4.12

SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 13:38:55 Date: 10-19-1999

Type.... Pond E-V-Q
Name.... BMP1 Table Page 5.01
File.... .\sample\029330.PPK
LEVEL POOL ROUTING DATA
HYG Dir = .\sample\
Inflow HYG file = NONE STORED - Zero Inflo w
Outflow HYG file = NONE STOR ED - BMP1 OUT
Pond Node Data = BMP-1
Pond Volume Data = BMP1
Pond Outlet Data = BMP1
No Infiltration

INITIAL CONDITIONS
-------- -- ----
Starting WS Elev

- ------
= 656.85

--
ft s
Starting Volume
Starting Outflow = .680
= .35 ac-ft
cfs
Starting Infiltr. _ .00 cfs
Starting Total Qout= .35 cfs
Time Increment = 30.00 min
Elevation Outflow Storage Area Infilt. Q Total 2S/t + 0
ft cfs
------ ---
656.00 .00 ac-ft
----
.000 acres
-----
.7700 cfs
---
.00 cfs
---
.00 cfs
---
.00
656.25 .10
656.50 .25 .195
.394 .7872
.8046 .00
.00 .10
.25 9.52
19.30
656.75 .33 .597 .8222 .00 .33 29.22
657.00 .39 .805 .8400 .00 .39 39.34
657.25 .81 1.017 .8572 .00 .81 50.03
657.50 1.48 1.233 .8746 .00 1.48 61.17
657.75 2.25 1.454 .8922 .00 2.25 72.63
658.00 3.06
658.25 3.86 1.680
1.909 .9100
.9273 .00
.00 3.06
3.86 84.35
96.27
658.35 4.18 2.002 .9342 .00 4.18 101.09
658.50 5.54 2.143 .9447 .00 5.54 109.27
658.75 9.27 2.382 .9623 .00 9.27 124.54
659.00 14.10 2.624 .9800 .00 14.10 141.12
659.25 19.64 2.871 .9899 .00 19.64 158.58
659.50 24.27
659.75 24.68 3.119
3.370 .9999
1.0099 .00
.00 24.27
24.68 175.25
187.81
659.79 24.74 3.411 1.0115 .00 24.74 189.83
660.00 28.05
660.25 35.13 3.624
3.880 1.0200
1.0286 .00
.00 28.05
35.13 203.47
222.94
660.29 36.48 3.921 1.0300 .00 36.48 226.28

SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01 -98 (61) Compute Time: 13:38:55 Date: 10-19-1999

t
1
1
1
1
Type.... Pond Routing Summary
Name.... BMP1
File.... .\sample\029330.PPK
LEVEL POOL ROUTING SUMMARY
HYG Dir = .\sample\
Inflow HYG file = NONE STORED - Zero Inflow
Outflow HYG file = NONE STORED - BMP1 OUT
Pond Node Data = BMP-1
Pond Volume Data = BMP1
Pond Outlet Data = BMP1
No Infiltration
INITIAL CONDITIONS
Starting WS Elev = 656,85 ft
Starting Volume = .680 ac-ft
Starting Outflow = .35 cfs
Starting Infiltr. _ .00 cfs
Starting Total Qout= .35 cfs
Time Increment = 30.00 min
INFLOW/OUTFLOW HYDROGRAPH SUMMARY
Peak Inflow = .00 cfs at 30.00 min
Peak Outflow = .35 cfs at 30.00 min
-----
Peak -------------
Elevation -----------
= 656.83 ------------------------
ft
Peak Storage = .665 ac-ft
MASS BALANCE (ac-ft)
----
-------------
+ Initial Vol ---------
= .680
+ HYG Vol IN = .000
- Infiltration = .000
- HYG Vol OUT = .674
- Retained Vol = .006
Unrouted Vol = -.000 ac-ft
(.007% of Outflow Volume)
Page 5.02
s
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 13:38:55 Date: 10-19-1999

i
r
1
1
1
1
1

ON #z
t
t
f
Uttie&AssOClaWsAichite(.,
5815 Westpark Drive
Charlotte, NC
28217
Telephone
704.525.6350
Facsimile
704.561.8710
Job r',2i
Sheet No Of
Calculated By Date ?j
Checked By Date
T.,
Scale
...'.
r
:
........ .gut-...... _

6 _ _ _
. ..... ...:.......:..:...:..

:
: :.. ......::. ::..::
....
..'.

r :
:..:...:. .: .:...:...: ... i...
: ..:...........

.._..-........................ ...... ....................

... ..: .
...:....:... .
.....; -

• 2.
its-L?. . , 1;
Ace

:........_

.:...:.. _.. .

- 2 V 4wN1

: 0
?T
_
/ _
.... _:. 1:.._ :.. .

.:...... :....:.._ .. . .... .... .._ .......... ......... _. 1 :..:....
- -

...........:..........................
..:...:....:... :...:..:...:..:...:..

u
:
. ..........................
.....:...I...:...;...:..:...

a

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-1...:.. ?.......:......

:: :
... .:,?..... :..
................ :...:
.
. .... .
.
_ _.....:.. -
.
:...:.....:..
;...;
: ;...;.

.:.....:.

. :.
.:...:... .........
T 7=
...:.:.:.
............._..............

:.......
:'.
..
..
....

...:.:.

...,.. ...

:: . . . . . .
:.
f Little&A.ssociates.Awhitects
I?

t
1
1
1
5815 Westpark Drive
Charlotte, NC
28217
Telephone
704.525.6350
Facsimile
704.561.8710
Job Of-13130M
Sheet No Of
Calculated By Date"
M1'•
Checked By Date
Scale

.........
. ... ..............
. .
. , & ,
.
..._ ... ....
.i...i...i......5....._i..... ..;... ._ ... K ...
...i...,...;-_
..5...;._d... ... ...._
_.,...i..:.._
_
.._,...i..;....d......d... _
.
1 l
... - -
.

.. ; ...

...... ......
.
...... ... ..:... ......... .
..

_,...
...;.....; .........:..... . ....

.......... ::...:...

r

...;...:.. !...:... F..:... j...: ..:... .....
.....

... ..:..:... .. j_.:...i...'. __i..
. ..:..
.....
7 7

... _ .. i...:__;... _ _ ..;...?_"i...

n..

.;.... __i....

.
Elev. (ft)
J
m (D co (D co co 0 0 0 0 0
0o O N m m O N -P m m
t t r ,: aiti•9?t.?,_Ic ?,
? s
r
O }, 1Y Lh y:?' ¦
O
O
O
O
O
? ?7 N Ell
rn
o z z D
?. z D ¦yyO??
00 (D
O N
0- Poll
`. u)
z .R
O 10
O _
o m
ME
N
0
O 0
o-
0
O
0
Job File: .\sample\029330.PPK
Rain Dir: .\util\
JOB TITLE
SOUTHWEST HIGH SCHOOL
BMP POND #2 DRAIN TIME
CALCULATION FOR 1" OF
RAIN OVER IMPERVIOUS AREA
a
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 08:55:19 Date: 07-29-1999
1
1
i
i
1
1
1
i
1
1
1
Table of Contents
Table of Contents
*********************** TIME VS.ELEV ***********************
BMP2 OUT-Time-Elev .......................... 1.01
************************ TIME VS.VOL ***********************
BMP2 OUT Time vs. Volume .................... 2.01
6
*********************** POND VOLUMES ***********************
BMP2............ Vol: Elev-Area ..................... 3.01
******************** OUTLET STRUCTURES *********************
BMP2............ Outlet Input Data ....... 4.01
Individual Outlet Curves ........... 4.05
Composite Rating Curve ............. 4.14
*********************** POND ROUTING ***********************
BMP2............ Pond E-V-Q Table ................... 5.01
Pond Routing Summary ............... 5.03

SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 14:05:14 Date: 10-19-1999
i
Type.... Time-Elev Page 1.01
Name.... BMP2 OUT
File.... .\sample\029330.PPK
Title... MINIMUM DRAW DOWN CALCULATION FOR BMP#2
TIME vs. ELEVATION (ft)
Time Output Time increment = 30.00 min
min Time on left represents time for first value in each row.
--------- --------------------------------------------------------------
.00 670.08 670.06 670.05 670.03 670.02
150.00 670.00 669.98 669.97 669.95 669.94
300.00 669.92 669.91 669.89 669.88 669.86
450.00 669.85 669.83 669.82 669.80 669.79
600.00 669.77 669.76 669.74 669.73 669.72
750.00 669.70 669.69 669.67 669.66 669.65
900.00 669.63 669.62 669.60 669.59 69.58
1050.00 669.57 669.55 669.54 669.53 669.51
1200.00 669.50 669.49 669.48 669.46 669.45
1350.00 669.44 669.43 669.42 669.40 669.39
1500.00 669.38 669.37 669.36 669.35 669.34
1650.00 669.33 669.31 669.30 669.29 669.28
1800.00 669.27 669.26 669.25 669.24 669.23
1950.00 669.22 669.21 669.20 669.19 669.18
2100.00 669.17 669.16 669.16 669.15 669.14
2250.00 669.13 669.12 669.11 669.10 669.10
2400.00 669.09 669.08 669.07 669.06 669.06
2550.00 669.05 669.04 669.04 669.03 669.02
2700.00 669.02 669.01 669.00 669.00 668.99
2850.00 668.99 668.98 668.97 668.97 668.96
3000.00 668.96 668.95 668.95 668.94 668.94
3150.00 668.93 668.93 668.93 668.92 668.92
3300.00 668.91 668.91 668.91 668.90 668.90
3450.00 668.89 668.89 668.89 668.88 668.88
3600.00 668.88 668.87 668.87 668.87 668.86
3750.00 668.86 668.86 668.85 668.85 668.85
3900.00 668.85 668.84 668.84 668.84 668.84
4050.00 668.83 668.83 668.83 668.83 668.82
4200.00 668.82 668.82 668.82 668.81 668.81
4350.00 668.81 668.81 668.81 668.80 668.80
4500.00 668.80 668.80 668.80 668.80 668.79
4650.00 668.79 668.79 668.79 668.79 668.78
4800.00 668.78 668.78 668.78 668.78 668.78
4950.00 668.78 668.77 668.77 668.77 668.77
5100.00 668.77 668.77 668.77 668.77 668.76
5250.00 668.76 668.76 668.76 668.76 668.76
5400.00 668.76 668.76 668.76 668.75 668.75
5550.00 668.75 668.75 668.75 668.75 668.75
5700.00 668.75 668.75 668.75 668.74 668.74
5850.00 668.74 668.74 668.74 668.74 668.74
6000.00 668.74 668.74 668.74 668.74 668.74
6150.00 668.74 668.74 668.73 668.73 668.73
6300.00 668.73 668.73 668.73 668.73 668.73
6450.00 668.73 668.73 668.73 668.73 668.73
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 14:05:14 Date: 10-19-1999
r
Type.... Time-Elev
Name.... BMP2 OUT
File.... .\sample\029330.PPK
Title... MINIMUM DRAW DOWN CALCULATION FOR BMP#2
TIME vs. ELEVATION (ft)
Time
min
6600.00
6750.00
6900.00
7050.00
7200.00
7350.00
7500.00
7650.00
7800.00
7950.00
Output Time increment = 30.00 min
Time on left represents time for first value in each row.

668.73 668.73 668.73 668.73 668.73
668.72 668.72 668.72 668.72 668.72
668.72 668.72 668.72 668.72 668.72
668.72 668.72 668.72 668.72 668.72
668.72 668.72 668.72 668.72 668.72
668.72 668.72 668.72 668.72 668.72
668.72 668.72 668.71 668.71 968.71
668.71 668.71 668.71 668.71 668.71
668.71 668.71 668.71 668.71 668.71
668.71 668.71 668.71 668.71 668.71
Page 1.02
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 14:05:14 Date: 10-19-1999
1
1
1
i
1
r
r
r
Type.... Time vs. Volume Page 2.01
Name.... BMP2 OUT
File.... .\sample\029330.PPK
Title... MINIMUM DRAW DOWN CALCULATION FOR BMP#2
TIME vs. VOLUME (ac-ft)
Time Output Time increment = 30.00 min
min Time on left
- represents
------------ time for first
--------------- value in
--------- each row.
----------
---------
.00 ---
------------
.889 .878 .867 .856 .845
150.00 .834 .823 .813 .802 .792
300.00 .781 .771 .761 .750 .740
450.00 .730 .720 .710 .700 .691
600.00 .681 .671 .662 .652 .643
00
750 .634 .625 .615 .606 .597
.
900.00 .588 .579 .570 .562 x..553
1050.00 .545 .536 .528 .519 .511
1200.00 .503 .495 .487 .479 .471
1350.00 .463 .455 .448 .440 .433
1500.00 .425 .418 .411 .403 .396
1650.00 .389 .382 .376 .369 .362
1800.00 .355 .349 .342 .336 .329
1950.00 .323 .317 .311 .305 .299
2100.00 .293 .287 .282 .276 .271
2250.00 .265 .260 .254 .249 .244
2400.00 .239 .234 .229 .224 .220
2550.00 .215 .211 .206 .202 .198
2700.00 .194 .190 .186 .182 .179
2850.00 .175 .172 .168 .165 .162
3000.00 .159 .155 .152 .150 .147
3150.00 .144 .141 .138 .136 .133
3300.00 .131 .128 .126 .123 .121
3450.00 .119 .117 .115 .112 .110
3600.00 .108 .106 .104 .102 .100
3750.00 .098 .097 .095 .093 .091
3900.00 .090 .088 .086 .085 .083
4050.00 .082 .080 .079 .077 .076
4200.00 .074 .073 .071 .070 .069
4350.00 .068 .066 .065 .064 .063
4500.00 .061 .060 .059 .058 .057
4650.00 .056 .055 .054 .053 .052
4800.00 .051 .050 .049 .048 .047
4950.00 .046 .046 .045 .044 .043
5100.00 .042 .041 .041 .040 .039
5250.00 .038 .038 .037 .036 .036
5400.00 .035 .034 .034 .033 .032
5550.00 .032 .031 .031 .030 .030
5700.00 .029 .028 .028 .027 .027
5850.00 .026 .026 .025 .025 .024
6000.00 .024 .024 .023 .023 .022
6150.00 .022 .021 .021 .021 .020
6300.00 .020 .020 .019 .019 .018
6450.00 .018 .018 .017 .017 .017.
SIN: HOMOL 0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 14:05:14 Date: 10-19-1999
1
1
1
1
1
1
1
1
Type.... Time vs. Volume
Name.... BMP2 OUT
File.... .\sample\029330.PPK
Title... MINIMUM DRAW DOWN CALCULATION FOR BMP#2
TIME vs. VOLUME (ac-ft)
Time
min
6600.00
6750.00
6900.00
7050.00
7200.00
7350.00
7500.00
7650.00
7800.00
7950.00
Page 2.02
Output Time increment = 30.00 min
Time on left represents time for first value in each row.

.017 .016 .016 .016 .015
.015 .015 .014 .014 .014
.014 .013 .013 .013 .013
.012 .012 .012 .012 .012
.011 .011 .011 .011 .011
.010 .010 .010 .010 i .010
.009 .009 .009 .009 .009
.009 .008 .008 .008 .008
.008 .008 .007 .007 .007
.007 .007 .007 .007 .007
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 14:05:14 Date: 10-19-1999

Type.... Vol: Elev-Area
Name.... BMP2
File.... .\sample\029330.PPK
Page 3.01
Elevation Planimeter Area Al+A2+sgr(Al*A2) Volume Volume Sum
(ft) (sq.in) (acres)
---------------- (acres)
----------------- (ac-ft)
-------- (ac-ft)
------------
668.70 -----
----- .6100
.0000 -
.000 -------------
.000
669.00 . ----- .6200 1.8450 .184 .184
670.00 ----- .6800 1.9493 .650 .834
671.00 ----- .7340 2.1205 .707 1.541
672.00 ----- .7890 2.2840 .761 2.302
673.00 ----- .8470 2.4535 .818 3.120
674.00 ----- .8870 2.6008 .867 3.987
674.86 ----- .8900 2.6655 .764 4.7151
POND VOLUME EQUATIONS
* Incremental volume computed by the Conic Method for Reservoir Volumes.
Volume = (1/3) * (EL2-EL1) * (Areal + Area2 + sq.rt.(Areal*Area2))
where: EL1, EL2 = Lower and upper elevations of the increment
Areal,Area2 = Areas computed for EL1, EL2, respectively
Volume = Incremental volume between EL1 and EL2
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 14:05:14 Date: 10-19-1999
1
1
Type.... Outlet Input Data Page 4.01
Name.... BMP2
File.... .\sample\029330.PPK
REQUESTED POND WS ELEVATIONS:
Min. Elev.= 668.70 ft
Increment = .20 ft
Max. Elev.= 674.86 ft
**********************************************
OUTLET CONNECTIVITY
**********************************************
s
---> Forward Flow Only (Upstream to DnStream)
<--- Reverse Flow Only (DnStream to Upstream)
< --- > Forward and Reverse Both Allowed
Structure
Weir-Rectangular
Weir-Rectangular
Inlet Box
Orifice-Circular
Culvert-Circular
TW SETUP, DS Channel
No. Outfall E1, ft
-- E2, ft
---------
----
W2 -------
---> TW -------
673.930 674.860
W1 ---> C 670.400 674.860
IB ---> C 671.500 674.860
01 ---> C 668.700 674.860
C ---> TW 664.000 674.860
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 14:05:14 Date: 10-19-1999
Type.... Outlet Input Data
Name.... BMP2
File.... .\sample\029330.PPK
OUTLET STRUCTURE INPUT DATA
,Structure ID
Structure Type
--------------
# of Openings
Crest Elev.
Weir Length
Weir Coeff.
Weir TW effects
Structure ID
Structure Type
--------------
# of Openings
Crest Elev.
Weir Length
Weir Coeff.
W2
Weir-Rectangular
----------------
1
673.93 ft
14.00 ft
3.100000
(Use adjustment equation)
W1
Weir-Rectangular
----------------
1
670.40 ft
.50 ft
3.100000
Weir TW effects (Use adjustment equation)
Page 4.02
i
Structure ID = IB
Structure Type = Inlet Box
---
-----------------
# of Openings -------------
= 1 ---
Invert Elev. = 671.50 ft
orifice Area = 3.0000 sq.ft
Orifice Coeff. _ .610
Weir Length = 4.50 ft
Weir Coeff. = 3.100
K, Submerged = .000
K, Reverse = 1.000
Kb,Barrel = .000000 (per ft of full flow)
Barrel Length = .00 ft
Mannings n = .0000
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 14:05:14 Date: 10-19-1999
Type.... Outlet Input Data
Name.... BMP2
File.... .\sample\029330.PPK
OUTLET STRUCTURE INPUT DATA
Structure ID = 01
Structure-Type = Orifice-Circular
------------------------------------
# of openings = 1
Invert Elev. = 668.70 ft
Diameter = .2500 ft
Orifice Coeff. _ .610
Structure ID = C
Structure Type = Culvert-Circular
------------------
No. Barrels ------------
= 1 ------
Barrel Diameter = 1.5000 ft
Upstream Invert = 664.00 ft
Dnstream Invert = 662.00 ft
Horiz. Length = 74.00 ft
Barrel Length = 74.03 ft
Barrel Slope = .02703 ft/ft
OUTLET CONTROL DATA...
Page 4.03
i
Mannings n = .0150
Ke = .5000 (forward entrance loss)
Kb = .024249 (per ft of full flow)
Kr = .5000 (reverse entrance loss)
HW Convergence = .001 +/- ft
INLET CONTROL DATA...
Equation form = 1
Inlet Control K = .0098
Inlet Control M = 2.0000
Inlet Control c = .03980
Inlet Control Y = .6700
T1 ratio (HW/D) = 1.147
T2 ratio (HW/D) = 1.293
Slope Factor = -.500
Calc inlet only = Yes
Use unsubmerged inlet control Form 1 equ. below Ti elev.
Use submerged inlet control Form 1 equ. above T2 elev.
In transition zone between unsubmerged and submerged inlet control,
interpolate between flows at T1 & T2...
At T1 Elev = 665.72 ft ---> Flow = 7.58 cfs
At T2 Elev = 665.94 ft ---> Flow = 8.66 cfs

SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 14:05:14 Date: 10-19-1999
t
t
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1
1
1
1
1
1
i
Type.... Outlet Input Data
Name.... BMP2
File.... .\sample\029330.PPK
OUTLET STRUCTURE INPUT DATA
Structure ID = TW
Structure Type = TW SETUP, DS Channel
------------------------------------
FREE OUTFALL CONDITIONS SPECIFIED
CONVERGENCE TOLERANCES...
Maximum Iterations= 30
Min. TW tolerance = .01 ft
Max. TW tolerance = .01 ft
Min. HW tolerance = .01 ft
Max. HW tolerance = .01 ft
Min. Q tolerance = .10 cfs
Max. Q tolerance = .10 cfs
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 14:05:14
Page 4.04
i
Date: 10-19-1999

i
r

Type.... Individual Outlet Curves
Name.... BMP2
File.... .\sample\029330.PPK
RATING TABLE FOR ONE OUTLET TYPE
Structure ID = W2 (Weir-Rectangular)
--------------------------------------
Upstream ID = (Pond Water Surface)
DNstream ID = TW (Pond Outfall)
WS Elev,Device Q Tail Water Notes
--------
----
---
---------
WS Elev. -------
Q ------
TW El --------- ---
ev Converge ------ --
ft cfs ft +/-ft Computation Messages
--------
668.70 -------
.00 ------
Free -- -----
Outfall ---
WS ------
below ---
an -------
invert; ----
no ---
flow.
668.90 .00 Free Outfall WS below an invert; no flow.
669.10 .00 Free Outfall WS below an invert; no flow.
669.30 .00 Free Outfall WS below an invert; no flow.
669.50 .00 Free Outfall WS below an invert; no flow.
669.70 .00 Free Outfall WS below an invert; no flow.
669.90 .00 Free Outfall WS below an invert; no flow.
670.10 .00 Free Outfall WS below an invert; no flow.
670.30 .00 Free Outfall WS below an invert; no flow.
670.40 .00 Free Outfall WS below an invert; no flow.
670.50 .00 Free Outfall WS below an invert; no flow.
670.70 .00 Free Outfall WS below an invert; no flow.
670.90 .00 Free Outfall WS below an invert; no flow.
671.10 .00 Free Outfall WS below an invert; no flow.
671.30 .00 Free Outfall WS below an invert; no flow.
671.50 .00 Free Outfall WS below an invert; no flow.
671.70 .00 Free Outfall WS below an invert; no flow.
671.90 .00 Free Outfall WS below an invert; no flow.
672.10 .00 Free Outfall WS below an invert; no flow.
672.30 .00 Free Outfall WS below an invert; no flow.
672.50 .00 Free Outfall WS below an invert; no flow.
672.70 .00 Free Outfall WS below an invert; no flow.
672.90 .00 Free Outfall WS below an invert; no flow.
673.10 .00 Free Outfall WS below an invert; no flow.
673.30 .00 Free Outfall WS below an invert; no flow.
673.50 .00 Free Outfall WS below an invert; no flow.
673.70 .00 Free Outfall WS below an invert; no flow.
673.90 .00 Free Outfall WS below an invert; no flow.
673.93 .00 Free Outfall WS below an invert; no flow.
674.10 3.04 Free Outfall H=.17; Htw=. 00; Qfree=3.04;
674.30 9.77 Free Outfall H=.37; Htw=. 00; Qfree=9.77;
674.50 18.68 Free Outfall H=.57; Htw=. 00; Qfree=18.68;
674.70 29.33 Free Outfall H=.77; Htw=. 00; Qfree=29.33;
674.86 38.92 Free Outfall H=.93; Htw=. 00; Qfree=38.92;
Page 4.05

b
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 14:05:14 Date: 10-19-1999
Type.... Individual Outlet Curves Page 4.06
Name.... BMP2
File.... .\sample\029330.PPK
4?•
RATING TABLE FOR ONE OUTLET TYPE
Structure ID = W1 (Weir-Rect angular)
------------------------------
Upstream ID = (Pond Water --------
Surface)
.
DNstream ID = C (Culvert-Ci rcular)
Pond WS. Device (into) Converge Next DS HGL Q SUM DS Chan. TW
Elev. Q HW HGL DS HGL DS HGL Error Error TW Error
ft cfs ft ft ft +/-ft +/ -cfs ft +/-ft

668.70 ----.00 ...--- ---...-- --...-- -----
...- -- ----
...
Free
Outfall---
WS below an invert; no flow.
668.90 .00 ... .. ... ... Free Outfall
WS below an invert; no flow.
669.10 .00 ... ... ... ... Free Outfall
WS below an invert; no flow.
669.30 .00 ... .. ... ... ... Free Outfall
WS below an invert; no flow.
669.50 .00 ... ... ... ... ... Free Outfall
WS below an invert; no flow.
669.70 .00 ... ... ...
WS below an invert; no flow. ... ... Free Outfall
669.90 .00 ... .. ... ... Free Outfall
WS below an invert; no flow.
670.10 .00 ... ... ... ... ... Free Outfall
WS below an invert; no flow.
670.30 .00 ... ... ... ... ... Free Outfall
WS below an invert; no flow.
670.40 .00 ... ... ... ... ... Free Outfall
WS below an invert; no flow.
670.50 .05 670.50 Free 664.28 .000 .000 Free Outfall
H=.10; Htw=.00; Qfree=.05;
670.70 .25 670.70 Free 664.36 .000 .000 Free Outfall
H=.30; Htw=.00; Qfree=.25;
670.90 .55 670.90 Free 664.46 .000 .000 Free Outfall
H=.50; Htw=.00; Qfree=.55;
671.10 .91 671.10 Free 664.56 .000 .000 Free Outfall
H=.70; Htw=.00; Qfree=.91;
671.30 1.32 671.30 Free 664.66 .000 .000 Free Outfall
H=.90; Htw=.00; Qfree=1.32;
671.50 1.79 671.50 Free 664.76 .000 .000 Free Outfall
H=1.10; Htw=.00; Qfree=1.79;
671.70 2.30 671.70 Free 665.09 .000 .000 Free Outfall
H=1.30; Htw=.00; Qfree=2.30;
671.90 2.85 671.90 Free 665.58 .000 .000 Free Outfall
H=1.50; Htw=.00; Qfree=2.85;
SIN: HOMOL09086 52 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 14:05:14 Date: 10-19-1999

r
t
Type.... Individual Outlet Curves
Name.... BMP2
File.... .\sample\029330.PPK
RATING TABLE FOR ONE OUTLET TYPE
Structure ID = W1 (Weir-Rectangular)
--------------------------------------
Upstream ID = (Pond Water Surface)
DNstream ID = C (Culvert-Circular)
Page 4.07

Pond WS. Device (into) Converge Next DS HGL Q SUM DS Chan. TW
Elev. Q HW HGL DS HGL DS HGL Error Error TW Error
ft cfs ft ft ft +/-ft +/-cfs ft +/-ft
--------
672.10 --------
3.44 -------
672.10 --------
Free ------- -
666.35 -----
.000 ------ ------- -------
.000 Free Otitfall
H=1.70; Htw=.00; Qfree=3.44;
672.30 4.06 672.30 . Free 667.66 .000 .000 Free Outfall
H=1.90; Htw=.00; Qfree=4.06;
672.50 4.72 672.50 Free 669.62 .000 .000 Free Outfall
H=2.10; Htw=.00; Qfree=4.72;
672.70 5.18 672.70 670.91 670.92 .008 .000 Free Outfall
H=2.30; Htw=.51; Qfree=5.41;
672.90 .00 672.90 672.90 672.90 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
673.10 .00 673.10 673.10 673.10 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
673.30 .00 673.30 673.30 673.30 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
673.50 .00 673.50 673.50 673.50 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
673.70 .00 673.70 673.70 673.70 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
673.90 .00 673.90 673.90 673.90 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
673.93 .00 673.93 673.93 673.93 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
674.10 .00 674.10 674.10 674.10 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
674.30 .00 674.30 674.30 674.30 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
674.50 .00 674.50 674.50 674.50 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
674.70 .00 674.70 674.70 674.70 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
674.86 .00 674.86 674.86 674.86 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 14:05:14 Date: 10-19-1999
[i
11
Type.... Individual Outlet Curves Page 4.08
Name.... BMP2
File.... .,sample,029330.PPK
RATING TABLE FOR ONE OUTLET TYPE
Structure ID = IB (Inlet Box)
--------- -- - -- ------ ----
.Upstream ID = (Pond Water Surface)
DNstream ID = C (Culvert-Circular)
Pond WS. Device (into) Converge Next DS HGL Q SUM DS Chan. TW
Elev. Q HW HGL DS HGL DS HGL Error Error TW Error
ft cfs ft ft ft +/-ft +/-cfs ft +/-ft
---
--68.70 ----.00 .. - --- ---•• • -- --•• • -- --•••- --••• Free Outfall
6 WS below an invert; no flow.
668.90 .00 ... •• ... ... Free Outfall
WS below an invert; no flow.
669.10 .00 ... ... ... ... ... Free Outfall
WS below an invert; no flow.
669.30 .00 ... ... ... Free Outfall
WS below an invert; no flow.
669.50 .00 ... ... ... ... ... Free Outfall
WS below an invert; no flow.
669.70 .00 ... ... ... ... Free Outfall
• WS below an invert; no flow.
669.90 .00 ... ... ... ... ... Free Outfall
WS below an invert; no flow.
670.10 .00 ... ... Free Outfall
WS below an invert; no flow.
670.30 .00 ... Free Outfall
WS below an invert; no flow.
670.40 .00 ... ... ... ... ... Free Outfall
WS below an invert; no flow.
670.50 .00 ... ... ... ... ... Free Outfall
WS below an invert; no flow.
670.70 .00 ... ... ... ... Free Outfall
WS below an invert; no flow.
670.90 .00 ... ... ... ... ... Free Outfall
WS below an invert; no flow.
671.10 .00 ... ... ... ... ... Free Outfall
WS below an invert; no flow.
671.30 .00 ... ... ... ... ... Free Outfall
WS below an invert; no flow.
671.50 .00 ... ... ... ... ... Free Outfall
WS below an invert; no flow.
671.70 1.25 671.70 Free 665.09 .000 .000 Free Outfall
Weir: H =.20
671.90 3.53 671.90 Free 665.58 .000 .000 Free Outfall
Weir: H =.40
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 14:05:14 Date: 10-19-1999
1
Type.... Individual Outlet Curves
Name.... BMP2
File.... .\sample\029330.PPK
RATING TABLE FOR ONE OUTLET TYPE
Structure ID = IB (Inlet Box)
--------------------------------------
Upstream ID = (Pond Water Surface)
DNstream ID = C (Culvert-Circular)
Page 4.09
Pond WS. Device (into) Converge Next DS HGL Q SUM DS Chan. TW
Elev. Q HW HGL D S HGL DS HGL Error Error TW Error
ft cfs ft ft ft +/-ft +/-cfs ft +/-ft
--------
672.10 --
6.48 ------- --
672.10 ------ -
Free ------ -
666.35 ----- ------
.000 .000 ------- -------
Free Outfall
Weir: H =.60
672.30 9.98 672.30. Free 667.66 .000 .000 Free Outfall
Weir: H =.80
672.50 13.95 672.50 Free 669.62 .000 .000 Free Outfall
Weir: H =1.0 0
672.70 16.08 672.70 Free 670.92 .000 .000 Free Outfall
Orifice: H = 1.20
672.90 23.70 672.90 672.90 672.90 .000 .000 Free Outfall
DS HGL+Loss > crest: Flow set to Downstream outlet.
673.10 25.23 673.10 673.10 673.10 .000 .000 Free Outfall
DS HGL+Loss > crest: Flow set to Downstream outlet.
673.30 25.54 673.30 673.30 673.30 .000 .000 Free Outfall
DS HGL+Loss > crest: Flow set to Downstream outlet.
673.50 25.85 673.50 673.50 673.50 .000 .000 Free Outfall
DS HGL+Loss > crest: Flow set to Downstream outlet.
673.70 26.15 673.70 673.70 673.70 .000 .000 Free Outfall
DS HGL+Loss > crest: Flow set to Downstream outlet.
673.90 26.45 673.90 673.90 673.90 .000 .000 Free Outfall
DS HGL+Loss > crest: Flow set to Downstream outlet.
673.93 26.49 673.93 673.93 673.93 .000 .000 Free Outfall
DS HGL+Loss > crest: Flow set to Downstream outlet.
674.10 26.74 674.10 674.10 674.10 .000 .000 Free Outfall
DS HGL+Loss > crest: Flow set to Downstream outlet.
674.30 27.03 674.30 674.30 674.30 .000 .000 Free Outfall
DS HGL+Loss > crest: Flow set to Downstream outlet.
674.50 27.32 674.50 674.50 674.50 .000 .000 Free Outfall
DS HGL+Loss > crest: Flow set to Downstream outlet.
674.70 27.61 674.70 674.70 674.70 .000 .000 Free Outfall
DS HGL+Loss > crest: Flow set to Downstream outlet.
674.86 27.84 674.86 674.86 674.86 .000 .000 Free Outfall
DS HGL+Loss > crest: Flow set to Downstream outlet.
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 14:05:14 Date: 10-19-1999
F_
--4
Type.... Individual Outlet Curves Page 4.10
Name.... BMP2
File.... .\sample\029330.PPK
RATING TABLE FOR ONE OUTLET TYPE
Structure ID = 01 (Orifice- Circular )
---
Ups ---------
tream ID --------
= ( ---------
Pond Wate --------
r Surfac -
e)
DNs tream ID = C ( Culvert-C ircular)
Pond WS. Device (into) C onverge Next DS HGL Q SUM DS Chan. TW
Elev. Q HW HGL DS HGL DS HGL Error Error TW Error
ft cfs ft ft ft +/-ft +/-cfs ft +/-ft

668.70 ----.00

WS ...--- -

below an --...--

invert; --...--

no flow. ----- ------
...
Free
dutfall---
668.90 .06 668.90 . Free 664.10 .000 .000 Free Outfall
CRIT.DEPTH CONTROL Vh= .060 ft Dcr= .141ft CRIT.DEPTH
669.10 .13 669.10 Free 664.15 .000 .000 Free Outfall
H =.28
669.30 .17 669.30 Free 664.18 .000 .000 Free Outfall
H =.47
669.50 .20 669.50 Free 664.20 .000 .000 Free Outfall
H =.67
669.70 .22 669.70 Free 664.21 .000 .000 Free Outfall
H =.88
669.90 .25 669.90 Free 664.23 .000 .000 Free Outfall
H =1.08
670.10 .27 670.10 Free 664.24 .000 .000 Free Outfall
H =1.28
670.30 .29 670.30 Free 664.25 .000 .000 Free Outfall

670.40
.30 H =1.47
670.40
Free
664.25
.000
.000
Free
Outfall
H =1.58
670.50 .31 670.50 Free 664.28 .000 .000 Free Outfall
H =1.67
670.70 .33 670.70 Free 664.36 .000 .000 Free Outfall
H =1.88
670.90 .35 670.90 Free 664.46 .000 .000 Free Outfall
H =2.08
671.10 .36 671.10 Free 664.56 .000 .000 Free Outfall

671.30
.38 H =2.28
671.30
Free
664.66
.000
.000
Free
Outfall
H =2.47
671.50 .39 671.50 Free 664.76 .000 .000 Free Outfall
H =2.67
671.70 .41 671.70 Free 665.09 .000 .000 Free Outfall
H =2.88
671.90 .42 671.90 Free 665.58 .000 .000 Free Outfall
H =3.08
S/N: HOMOL09086 52 LITTLE & ASSOCI ATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Comp ute Time: 14:05:14 Date: 10-19-1999
Type.... Individual Outlet Curves Page 4.11
Name.... BMP2
File.... .\sample\029330.PPK
RATING TABLE FOR ONE OUTLET TYPE
Structure ID = 01 (Orifice-Circular)
--------- -- - -- ------------------
Upstream ID = (Pond Water Surface)
DNstream ID = C (Culvert-Circular)
Pond WS. Device (into) Converge Next DS HGL Q SUM DS Chan. TW
Elev. Q HW HGL DS HGL DS HGL Error Error TW Error
ft cfs ft ft ft +/-ft +/-cfs ft +/-ft
-------- - ------- -------- ------- ------ ------ ------- -------
672.10 .43 672.10 Free 666.35 .000 .000 Free Outfall
H =3.28
672.30 .45 672.30 • Free 667.66 .000 .000 Free Outfall
H =3.47
672.50 .41 672.50 669.62 669.62 .001 .000 Free Outfall
H =2.88
672.70 .32 672.70 670.91 670.92 .008 .000 Free Outfall
H =1.79
672.90 .00 672.90 672.90 672.90 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
673.10 .00 673.10 673.10 673.10 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
673.30 .00 673.30 673.30 673.30 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
673.50 .00 673.50 673.50 673.50 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
673.70 .00 673.70 673.70 673.70 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
673.90 .00 673.90 673.90 673.90 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
673.93 .00 673.93 673.93 673.93 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
674.10 .00 674.10 674.10 674.10 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
674.30 .00 674.30 674.30 674.30 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
674.50 .00 674.50 674.50 674.50 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
674.70 .00 674.70 674.70 674.70 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
674.86 .00 674.86 674.86 674.86 .000 .000 Free Outfall
Full riser flow. Q=0 this opening.
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 14:05:14 Date: 10-19-1999

Type.... Individual Outlet Curves
Name.... BMP2
File.... .\sample\029330.PPK
RATING TABLE FOR ONE OUTLET TYPE
Pond WS.
Elev.
ft
668.70
668.90
669.10
669.30
669.50
669.70
669.90
670.10
670.30
670.40
670.50
670.70
670.90
671.10
671.30
671.50
671.70
671.90
Page 4.12
Structure ID = C (Culvert-Circular)
--------------------------------------
.Mannings open channel maximum capacity: 16.10 cfs
UPstream ID's= W1, IB, 01
DNstream ID = TW (Pond Outfall)
Device (into) Converge Next DS HGL Q SUM DS Chan. TW
Q HW HGL DS HGL DS HGL Error Error TW Error
cfs ft ft ft +/-ft +/-cfs ft ; +/-ft
-------- ------- -------- ------- ------ ------ ------- ----
.00 664.00 Free Free .000 .000 Free Outfall
.06 664.10 Free
INLET CONTROL...
.13 664.15 Free
INLET CONTROL...
.17 664.18 Free
INLET CONTROL...
.20 664.20 Free
INLET CONTROL...
.22 664.21 Free
INLET CONTROL...
.25 664.23 Free
INLET CONTROL...
.27 664.24 Free
INLET CONTROL...
.29 664.25 Free
INLET CONTROL...
.30 664.25 Free
INLET CONTROL...
.36 664.28 Free
INLET CONTROL...
.58 664.36 Free
INLET CONTROL...
.89 664.46 Free
INLET CONTROL...
1.27 664.56 Free
INLET CONTROL...
1.70 664.66 Free
INLET CONTROL...
2.18 664.76 Free
INLET CONTROL...
3.95 665.09 Free
INLET CONTROL...
6.80 665.58 Free
INLET CONTROL...
Free .000 .000 Free Outfall
Equ.1: HW =.10 do=.088 Ac=.0418
Free .000 .000 Free Outfall
Equ.1: HW =.15 do=.129 Ac=.0735
Free .000 .000 Free Outfall
Equ.l: HW =.18 do=.149 Ac=.0914
Free .000 .000 Free Outfall
Equ.l: HW =.20 do=.164 Ac=.1048
Free .000 .000 Free Outfall
Equ.1: HW =.21 do=.174 Ac=.1145
Free .000 .000 Free Outfall
Equ.l: HW =.23 do=.184 Ac=.1245
Free .000 .000 Free Outfall
Equ.l: HW =.24 do=.192 Ac=.1318
Free .000 .000 Free Outfall
Equ.1: HW =.25 do=.199 Ac=.1392
Free .000 .000 Free Outfall
Equ.l: HW =.25 do=.202 Ac=.1422
Free .000 .000 Free Outfall
Equ.1: HW =.28 do=.221 Ac=.1620
Free .000 .000 Free Outfall
Equ.l: HW =.36 do=.283 Ac=.2309
Free .000 .000 Free Outfall
Equ.l: HW =.46 do=.352 Ac=.3161
Free .000 .000 Free Outfall
Equ.l: HW =.56 do=.422 Ac=.4073
Free .000 .000 Free Outfall
Equ.l: HW =.66 do=.490 Ac=.5022
Free .000 .000 Free Outfall
Equ.l: HW =.76 do=.558 Ac=.5985
Free .000 .000 Free Outfall
Equ.l: HW =1.09 do=.761 Ac=.8995
Free .000 .000 Free Outfall
Equ.l: HW =1.58 do=1.009 Ac=1.2644
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 14:05:14
Date: 10-19-1999

Type.... Individual Outlet Curves
Name.... BMP2
File....
Pond WS.
Elev.
ft
672.10
672.30
672.50
672.70
672.90
673.1.0
673.30
673.50
673.70
673.90
673.93
674.10
674.30
674.50
674.70
674.86
Page 4.13
.\sample\029330.PPK
RATING TABLE FOR ONE OUTLET TYPE
Structure ID = C (Culvert-Circular)
--------------------------------------
.Mannings open channel maximum capacity: 16.10 cfs
UPstream ID's= W1, IB, 01
DNstream ID = TW (Pond Outfall)
Device (into) Converge Next DS HGL Q SUM DS Chan. TW
Q HW HGL DS HGL DS HGL Error Error TW Error
cfs ft ft ft +/-ft +/-cfs ft ; +/-ft
-------- ------- -------- ------- ------ ------
666.35 Free Free .000 .000 Free Outfall
INLET CONTROL... Submerged: HW =2.35
14.49 667.66 Free Free .000 .000 Free Outfall
INLET CONTROL... Submerged: HW =3.66
19.07 669.62 Free Free .000 .000 Free Outfall
INLET CONTROL... Submerged: HW =5.62
21.58 670.92 Free Free .000 .000 Free Outfall
INLET CONTROL... Submerged: HW =6.92
23.70 672.90 Free Free .000 .000 Free Outfall
INLET CONTROL... Submerged: HW =8.90
25.23 673.10 Free Free .000 .000 Free Outfall
INLET CONTROL... Submerged: HW =9.10
25.54 673.30 Free Free .000 .000 Free Outfall
INLET CONTROL... Submerged: HW =9.30
25.85 673.50 Free Free .000 .000 Free Outfall
INLET CONTROL... Submerged: HW =9.50
26.15 673.70 Free Free .000 .000 Free Outfall
INLET CONTROL... Submerged: HW =9.70
26.45 673.90 Free Free .000 .000 Free Outfall
INLET CONTROL... Submerged: HW =9.90
26.49 673.93 Free Free .000 .000 Free Outfall
INLET CONTROL... Submerged: HW =9.93
26.74 674.10 Free Free .000 .000 Free Outfall
INLET CONTROL... Submerged: HW =10.10
27.03 674.30 Free Free .000 .000 Free Outfall
INLET CONTROL... Submerged: HW =10.30
27.32 674.50 Free Free .000 .000 Free Outfall
INLET CONTROL... Submerged: HW =10.50
27.61 674.70 Free Free .000 .000 Free Outfall
INLET CONTROL... Submerged: HW =10.70
27.84 674.86 Free Free .000 .000 Free Outfall
INLET CONTROL... Submerged: HW =10.86
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 14:05:14
Date: 10-19-1999

r
r
i
i
i
i
Type.... Composite Rating Curve
Name.... BMP2
File.... .\sample\029330.PPK
***** COMPOSITE OUTFLOW SUMMARY ****
WS Elev, Total Q
Elev. Q
ft cfs
---
--------
668.70 ----
.00
668.90 .06
669.10 .13
669.30 .17
669.50 .20
669.70 .22
669.90 .25
670.10 .27
670.30 .29
670.40 .30
670.50 .36
670.70 .58
670.90 .89
671.10 1.27
671.30 1.70
671.50 2.18
671.70 3.95
671.90 6.80
672.10 10.35
672.30 14.49
672.50 19.07
672.70 21.58
672.90 23.70
673.10 25.23
673.30 25.54
673.50 25.85
673.70 26.15
673.90 26.45
673.93 26.49
674.10 29.79
674.30 36.80
674.50 46.00
674.70 56.93
674.86 66.76
----- -- Converge
TW Elev Error
ft +/-ft
-------- -----
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Free Outfall
Notes
-------------------------
Contributing Structures
(no Q: W2,W1,IB,O1,C)
01,C (no Q: W2,W1,IB)
01,C (no Q: W2,W1,IB)
01,C (no Q: W2,W1,IB)
01,C (no Q: W2,W1,IB)
01,C (no Q: W2,W1,IB)
01,C (no Q: W2,W1,IB)
01,C (no Q: W2,W1,IB)
01,C (no Q: W2,W1,IB)
01,C (no Q: W2,W1,IB)
W1,01,C (no Q: W2,IB)
W1,01,C (no Q: W2,IB)
W1,01,C (no Q: W2,IB)
W1,01,C (no Q: W2,IB)
W1,01,C (no Q: W2,IB)
W1,01,C (no Q: W2,IB)
W1,IB,01,C (no Q: W2)
Wl,IB,01,C (no Q: W2)
W1,IB,01,C (no Q: W2)
W1,IB,01,C (no Q: W2)
W1,IB,O1,C (no Q: W2)
Wl,IB,01,C (no Q: W2)
IB,C (no Q: W2,W1,01)
IB,C (no Q: W2,W1,01)
IB,C (no Q: W2,W1,01)
IB,C (no Q: W2,W1,01)
IB,C (no Q: W2,W1,01)
IB,C (no Q: W2,W1,01)
IB,C (no Q: W2,W1,01)
W2,IB,C (no Q: W1,01)
W2,IB,C (no Q: W1,01)
W2,IB,C (no Q: W1,01)
W2,IB,C (no Q: W1,01)
W2,IB,C (no Q: W1,01)
Page 4.14
s
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 14:05:14 Date: 10-19-1999

Type.... Pond E-V-Q Table Page 5.01
Name.... BMP2
File.... .\sample\029330.PPK
Title... MINIMUM DRAW DOWN CALCULATION FOR BMP#2
LEVEL POOL ROUTING DATA
HYG Dir = .\sample\
Inflow HYG file = NONE STORED - Zero Inflow
Outflow HYG file = NONE STORED - BMP2 OUT
Pond Node Data = BMP2
Pond Volume Data = BMP2
Pond Outlet Data = BMP2
No Infiltration
INITIAL CONDITIONS
----------------------------------
Starting WS Elev = 670.08 ft
Starting Volume = .889 ac-ft
Starting Outflow = .27 cfs
Starting Infiltr. _ .00 cfs
Starting Total Qout= .27 cfs
Time Increment = 30.00 min
Elevation Outflow Storage Area Infilt. Q Total 2S/t + 0
ft , cfs ac-ft acres cfs cfs cfs
------------------------------------------------------------------------------
668.70 .00 .000 .6100 .00 .00 .00
668.90 .06 .123 .6167 .00 .06 5.99
669.10 .13 .247 .6259 .00 .13 12.07
669.30 .17 .373 .6377 .00 .17 18.23
669.50 .20 .502 .6497 .00 .20 24.49
669.70 .22 .633 .6617 .00 .22 30.86
669.90 .25 .767 .6739 .00 .25 37.35
670.10 .27 .903 .6853 .00 .27 43.95
670.30 .29 1.041 .6960 .00 .29 50.66
670.40 .30 1.111 .7014 .00 .30 54.05
670.50 .36 1.181 .7067 .00 .36 57.52
670.70 .58 1.323 .7176 .00 .58 64.63
670.90 .89 1.468 .7285 .00 .89 71.94
671.10 1.27 1.615 .7394 .00 1.27 79.43
671.30 1.70 1.764 .7503 .00 1.70 87.07
671.50 2.18 1.915 .7613 .00 2.18 94.86
671.70 3.95 2.068 .7723 .00 3.95 104.06
671.90 6.80 2.224 .7834 .00 6.80 114.43
672.10 10.35 2.382 .7947 .00 10.35 125.63
672.30 14.49 2.542 .8062 .00 14.49 137.51
672.50 19.07 2.704 .8177 .00 19.07 149.95
672.70 21.58 2.869 .8294 .00 21.58 160.43
672.90 23.70 3.036 .8411 .00 23.70 170.64
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 14:05:14 Date: 10-19-1999
Type.... Pond E-V-Q Table Page 5.02
Name.... BMP2
File.... .\sample\029330.PPK
Title... MINIMUM DRAW DOWN CALCULATION FOR BMP#2
LEVEL POOL ROUTING DATA
HYG Dir = .\sample\
Inflow HYG file = NONE STORED - Zero Inflow
Outflow HYG file = NONE STORED - BMP2 OUT
Pond Node Data = BMP2
Pond Volume Data = BMP2
Pond Outlet Data = BMP2
No Infiltration
s
INITIAL CONDITIONS
-----------------------------------
Starting WS Elev = 670.08 ft
Starting Volume = .889 ac-ft
Starting Outflow = .27 cfs
Starting Infiltr. _ .00 cfs
Starting Total Qout= .27 cfs
Time Increment = 30.00 min
Elevation Outflow Storage Area Infilt. Q Total 2S/t + 0
ft , cfs ac-ft acres cfs cfs cfs
------ ----- ----- ----- --- ----- ------
673.10 25.23 3.205 .8510 .00 25.23 180.36
673.30 25.54 3.376 .8589 .00 25.54 188.95
673.50 25.85 3.549 .8669 .00 25.85 197.61
673.70 26.15 3.723 .8749 .00 26.15 206.34
673.90 26.45 3.899 .8830 .00 26.45 215.15
673.93 26.49 3.925 .8842 .00 26.49 216.47
674.10 29.79 4.076 .8873 .00 29.79 227.06
674.30 36.80 4.253 .8880 .00 36.80 242.67
674.50 46.00 4.431 .8887 .00 46.00 260.47
674.70 56.93 4.609 .8894 .00 56.93 280.01
674.86 66.76 4.751 .8900 .00 66.76 296.72
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 14:05:14 Date: 10-19-1999
Type.... Pond Routing Summary
Name.... BMP2
File.... .\sample\029330.PPK
Title... MINIMUM DRAW DOWN CALCULATION FOR BMP#2
LEVEL POOL ROUTING SUMMARY
HYG Dir = .\sample\
Inflow HYG file = NONE STORED - Zero Inflow
Outflow HYG file = NONE STORED - BMP2 OUT
Pond Node Data = BMP2
Pond Volume Data = BMP2
Pond Outlet Data = BMP2
No Infiltration
INITIAL CONDITIONS
Starting WS Elev = 670.08 ft
Starting Volume = .889 ac-ft
Starting Outflow = .27 cfs
Starting Infiltr. _ .00 cfs
Starting Total Qout= .27 cfs
Time Increment = 30.00 min
INFLOW/OUTFLOW HYDROGRAPH SUMMARY
Peak Inflow = .00 cfs at 30.00 min
Peak Outflow = .27
------ cfs at 30.00 min
------------------------
-----
Peak -------------
Elevation -----
= 670.06 ft
Peak Storage = .878 ac-ft
MASS BALANCE (ac-ft)
-------
-------------
+ Initial Vol ------
= •889
+ HYG Vol IN = .000
- Infiltration = .000
- HYG Vol OUT = •882
- Retained Vol = .007
Unrouted Vol = -.000 ac-ft
(.005% of Outflow Volume)
Page 5.03
6
SIN: HOMOL0908652 LITTLE & ASSOCIATES ARCHITECTS
Pond Pack Ver: 8-01-98 (61) Compute Time: 14:05:14 Date: 10-19-1999

r

1

1

f

1
t
UU? S ?'2
J JUN 3 0 2000
DEPARTMENT OF THE ARMY
Wilmington District, Corps of Engineers WETLANDS Cry"UP
Post Office Box 1890 WATER QW11TY s?C!
Wilmington, North Carolina 28402-1890
Action ID No. 200030806 14 June 2000
PUBLIC NOTICE
CHARLOTTE-MECKLENBURG SCHOOLS, C/O MR. DAVID KUBICKI, 3301
STAFFORD DRIVE, CHARLOTTE, NORTH CAROLINA 28208 has applied for a
Department of the Army (DA) permit TO DEPOSIT APPROXIMATELY 95,000 CUBIC
YARDS OF FILL MATERIAL IN 789 LINEAR FEET OF AN UNNAMED TRIBUTARY
TO SUGAR CREEK FOR THE PURPOSE OF ACCOMODATING THE
CONSTRUCTION OF PHASE II OF THE PROPOSED SOUTH WEST HIGH SCHOOL
LOCATED ON NATIONS FORD ROAD, IN CHARLOTTE, MECKLENBURG
COUNTY, NORTH CAROLINA.
The following description of the work is taken from data provided by the applicant and
from observations made during an onsite visit by a representative of the Corps of Engineers.
Plans submitted with the application show that the applicant proposes to culvert and fill over
approximately 789 linear feet of an unnamed tributary that drains down to Sugar Creek for the
purpose of constructing a track/football stadium associated with construction of Phase II of South
West High School. The school site is located on a 111-acre tract. Phase I included the
construction of the main high school building, parking areas, roadways, and all athletic fields
except the football and track stadium and involved impacts to 96 linear feet of stream channel
and 0.28 acre of wetlands. These impacts were previously authorized for Phase I under
Nationwide Permit No. 26. The stream channel to be impacted under Phase II of the project has
been determined to have "important" aquatic functions. This stream is identified as "Stream B"
on the project plans. Some of the "important" characteristics of the stream include presence of
aquatic organisms, clean coarse sandy substrate, undercut banks, flow in channel, and stable
streambanks. In the event that a permit is issued for this project, the applicant is proposing
mitigation to offset the loss of stream channel on the property. The proposed mitigation options
include making appropriate payment into the state Wetland Restoration Program fund and/or
stream restoration/enhancement work to be performed somewhere within the Sugar Creek basin.
The latter option may include assistance with funding the Little Sugar Creek Upper Basin
Environmental Restoration Project-Phase II Belmont Avenue Regional Water Quality Basin. No
wetlands will be impacted by the proposed project. Plans showing the work are included with
this public notice.
The State of North Carolina will review this public notice to determine the need for the
applicant to obtain any required State authorization. No Department of the Army (DA) permit
will be issued until the coordinated State viewpoint on the proposal has been received and
reviewed by this agency, nor will a DA permit be issued until the North Carolina Division of
Water Quality (NCDWQ) has determined the applicability of a Water Quality Certificate as
required by PL 92-500.
2
This application is being considered pursuant to Section 404 of the Clean Water Act (33
U.S.C. 1344). Any person may request, in writing within the comment period specified in the
notice, that a public hearing be held to consider this application. Requests for public hearing
shall state, with particularity, the reasons for holding a public hearing.
The District Engineer has consulted the latest published version of the National Register of
Historic Places for the presence or absence of registered properties, or properties listed as being
eligible for inclusion therein, and this worksite is not registered property or property listed as
being eligible for inclusion in the Register. Consultation of the National Register constitutes the
extent of cultural resource investigations by the District Engineer, and he is otherwise unaware of
the presence of such resources. Presently, unknown archeological, scientific, prehistorical, or
historical data may be lost or destroyed by work under the requested permit.
The District Engineer, based on available information, is not aware that the proposed
activity will affect species, or their critical habitat, designated as endangered or threatened
pursuant to the Endangered Species Act of 1973.
The decision whether to issue a permit will be based on an evaluation of the probable
impacts, including cumulative impacts, of the proposed activity and its intended use on the
public interest. Evaluation of the probable impacts, which the proposed activity may have on the
public interest, requires a careful weighing of all those factors which become relevant in each
particular case. The benefits, which reasonably may be expected to accrue from the proposal,
must be balanced against its reasonably foreseeable detriments. The decision whether to
authorize a proposal, and if so the conditions under which it will be allowed to occur, are
therefore determined by the outcome of the general balancing process. That decision should
reflect the national concern for both protection and utilization of important resources. All
factors, which may be relevant to the proposal, must be considered including the cumulative
effects thereof. Among those are conservation, economics, aesthetics, general environmental
concerns, wetlands, cultural values, fish and wildlife values, flood hazards and flood plain values
(in accordance with Executive Order 11988), land use, navigation, shore erosion and accretion,
recreation, water supply and conservation, water quality, energy needs, safety, food and fiber
production, mineral needs, considerations of property ownership, and, in general, the needs and
welfare of the people. For activities involving the placement of dredged or fill materials in
waters of the United States, a permit will be denied if the discharge that would be authorized by
such permit would not comply with the Environmental Protection Agencies' 404(b)(1)
guidelines. Subject to the preceding sentence and any other applicable guidelines or criteria, a
permit will be granted unless the District Engineer determines that it would be contrary to the
public interest.
The Corps of Engineers is soliciting comments from the public; Federal, State and local
agencies and officials; Indian Tribes and other interested parties in order to consider and evaluate
the impacts of this proposed activity. Any comments received will be considered by the Corps of
Engineers to determine whether to issue, modify, condition or deny a permit for this proposal.
To make this decision, comments are used to assess impacts on endangered species, historic
properties, water quality, general environmental effects and the other public interest factors listed
above. Comments are used in the preparation of an Environmental Assessment (EA) and/or an
Environmental Impact Statement (EIS) pursuant to the National Environmental Policy Act
(NEPA). Comments are also used to determine the need for a public hearing and to determine
the overall public interest of the proposed activity.
1

Generally, the decision whether to issue this Department of the Army (DA) permit will not
be made until the North Carolina Division of Water Quality (NCDWQ) issues, denies, or waives
State certification required by Section 401 of the Clean Water Act. The NCDWQ considers
whether or not the proposed activity will comply with Sections 301, 302, 306, and 307 of the
Clean Water Act. The application and this public notice for the Department of the Army (DA)
permit serves as application to the NCDWQ for certification.
Additional information regarding the Clean Water Act certification may be reviewed at the
offices of the Environmental Operations Section, North Carolina Division of Environmental
Management (NCDWQ), Salisbury Street, Archdale Building, Raleigh, North Carolina. Copies
of such materials will be furnished to any person requesting copies upon payment of
reproduction costs.
The North Carolina Division of Water Quality (NCDWQ) plans to take final action in the
issuance of the Clean Water Act certification on or after 7 July 2000.
All persons desiring to make comments regarding the application for Clean Water Act
certification should do so in writing delivered to the North Carolina Division of Water Quality
(NCDWQ), NCDENR, 1621 Mail Service Center, Raleigh, North Carolina 27699-1621, on or
before 7 July 2000, Attention: Mr. John Dorney.
Written comments pertinent to the proposed work, as outlined above, will be received in this
office, Attention: Mr. Steve Chapin, until 4:15 p.m., 14 July 2000, or telephone [phone].

;7?j

'VI
O
a p Oh ;??.
ct

-? EXPLANATION _
Ac-4I on SD #x120003 080
v APPROXIMATE SITE LOCATION Skeet O T 4
? 2000 1000 0 2000'
_c+
6!? REF: U.S.G.S. 7.5 MINUTE TOPOGRAPHIC MAP OF CHARLOTTE WEST, NC OUADRANGLE DATED 1980. APPRO]MATE SCALE IN FEET
0
SITE LOCATION
LAW SOUTH WEST HIGH SCHOOL
ENGINEERING AND ENVIRONMENTAL SERVICES NATIONS FORD ROAD
CHARLOTTE, NORTH CAROLINA
_n CHARLOTTE, NORTH CAROLINA
PREPARED kI DATE CHECKED _ DATE ?fZ?Iov Jos NO. 30100-9-4305 FIGURE 1
I
f
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•Sp' „?:Y •74
b: 1
1 z ?
alt f
is
OF-

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'*!
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4
) vc '!?""' 1. ?}?- ? ? 1a ? -• E - '?' 1 ' ?
' _ ;

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4f
Fs?:
3 '%t

a
EXPLANATION /4ccAon , 200030$0(,
4
APPROXIMATE SITE LOCATION Sl,ee-t ? c-C
2000 1000 0 2000
I I I __?
APPROXULATE SCALE IN FEET
REF: US DEPARTMENT OF AGRICULTURE, SOIL CONSERVATION SERVICE MAP, MECKLENBURG COUNTY, NC; SHEET NO. 6, DATED 1976.
SOIL SURVEY MAP
LAW SOUTH WEST HIGH SCHOOL
ENGINEERING AND ENVIRONMENTAL SERVICES NATIONS FORD ROAD
CHARLOTTE, NORTH CAROLINA CHARLOTTE, NORTH CAROLINA
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State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
Charlotte-Mecklenburg Schools
C/o Mr. David Kubucki
3301 Stafford Drive
Charlotte, NC 28208
Dear Mr. Kubicki:
Subject: 401 Water Quality Certification
South West High School at Nations Ford Road
Mecklenburg County
DWQ # 000582 COE# 200030806
A008% =000N%V=
NC ENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
June 30, 2000
On June 15, 2000 this office received an application regarding your proposal to culvert 789 feet of
streams for your subject project in Mecklenburg County. We believe that this project will require review by
the State Clearinghouse under the State Environmental Policy Act (SEPA). DWQ cannot issue the 401
Certification until the project has received a Finding of No Significant Impact (FONSI) or Record of
Decision (ROD) from the State Clearinghouse in accordance with NCAC 15A: OIC .0402. Therefore, I
must hereby place this project on indefinite hold until the State Clearinghouse has issued the FONSI or
ROD. However we will continue to review the project and make you aware of any concerns. We
recommend that you notify us that the NEPA/SEPA process is complete so we can reactivate the project. In
addition, by copy of this letter, I am also notifying the U.S. Army Corps of Engineers that this project
should be placed on hold. Please contact Mr. Milt Rhodes at 919-733-5083 for information regarding the
SEPA application process.
If you believe that this decision is in error, please call me at 919-733-9646 to discuss the matter.
S' cereI ,
R. Dor'ey
ater Quality Cer fi tion Program
cc: Mooresville DWQ Regional Office
U.S. Army Corps of Engineers Asheville District Office
Central Files
File Copy
Mike Iagnocci; Law Engineering & Environmental "(. -t
Ron Ferrell; WRP E
Wetlands/401 Unit 1621 Mail Service CenterRaleiah. North Carolina 27669-1621
Telephone [phone]FAX # [phone]
An Equal Opportunity Affirmative Action Employer
101/o recycled/10% post consumer paper
MEMORANDUM
TO: John Dorney Regional Contact:
Non-Discharge Branch WO Supervisor:
Date:
SUBJECT: WETLAND STAFF REPORT AND RECOMMENDATIONS
Facility Name South West High School
Project Number 00 0582
Recvd From APP
Received Date 5/2/00 Recvd By Region
Project Type school construction
County Mecklenburg
County2
Region Mooresville
Certificates Stream
Permit Wetland Wetland Wetland Stream Class Acres Feet
Type Type Impact Score Index Prim. Supp. Basin Req. Req.
F _1P_ ? O Y O N I 11-137 FF 30,834. 0.28 885.00
f -F- o Y o N F_r_F__f F I-I-
Mitigation Wetland
MitigationType Type Acres Feet
Stream mitigation bank F-- F- 885.00
Is Wetland Rating Sheet Attached? Q Y 6 N Did you request more info? Q Y O N
Have Project Changes/Conditions Been Discussed With Applicant? Q Y O N
Is Mitigation required? Q Y O N Recommendation: Q issue0 Issue/Cond O Deny
Provided by Region: Latitude (ddmmss) 350916 Longitude (ddmmss) 805359
Comments:
MRO has no objection to the proposed impacts for the construction of the High School and stadium
as long as adequate gation and stormwater controls are provided. The proposed mitigation of
paying $125 / linear foot to the Little Sugar Creek Upper Basin Restoration Project is acceptahle as
long as the project meets the DWO definition of stream restoration and certain _guarantees are made
that the restoration will take place Mike lagnocco was advised to provide more specific details out
the restoration prof ..t for DWO review prior to the issuance of the 401,
cc: Regional Office Page Number 1
Central Office
cMORANDUM
O: John Dorney Regional Contact:
Non-Discharge Branch WO Supervisor:
Date:
SUBJECT: WETLAND STAFF REPORT AND RECOMMENDATIONS
Facility Name South West High School County Mecklenburg
Project Number 00 0582 County2
Recvd From APP
Received Date 5/2/00
Recvd By Region
Project Type school construction
Certificates Stream
Permit Wetland Wetland Wetland Stream Class Acres Feet
Type Type Impact Score Index Prim. Supp. Basin Req. Req.
F IP FO Y O N 11-137 ?I - 30,834. 0.28 885.00
Mitigation Wetland
MitigationType Type Acres Feet
Stream mitigation bankF-F- 885.00
Is Wetland Rating Sheet Attached? Q Y 0 N Did you request more info? Q Y O N
Have Project Changes/Conditions Been Discussed With Applicant? Q Y O N
Is Mitigation required?p Y O N Recommendation: Q Issue 0 Issue/Coed O Deny
Provided by Region: Latitude (ddmmss) 350916 Longitude (ddmmss) 805359
Comments:
Region Mooresville
cc: Regional Office
Central Office Page Number 1
DEPARTMENT OF THE ARMY
Wilmington District, Corps of Engineers
Post Office Box 1890
Wilmington, North Carolina 28402-1890
Action ID No. 200030806
PUBLIC NOTICE

10..?''T j U11L I TV niF('T
14 June 2000
CHARLOTTE-MECKLENBURG SCHOOLS, C/O MR. DAVID KUBICKI, 3301
STAFFORD DRIVE, CHARLOTTE, NORTH CAROLINA 28208 has applied for a
Department of the Army (DA) permit TO DEPOSIT APPROXIMATELY 95,000 CUBIC
YARDS OF FILL MATERIAL IN 789 LINEAR FEET OF AN UNNAMED TRIBUTARY
TO SUGAR CREEK FOR THE PURPOSE OF ACCOMODATING THE
CONSTRUCTION OF PHASE II OF THE PROPOSED SOUTH WEST HIGH SCHOOL
LOCATED ON NATIONS FORD ROAD, IN CHARLOTTE, MECKLENBURG
COUNTY, NORTH CAROLINA.
The following description of the work is taken from data provided by the applicant and
from observations made during an onsite visit by a representative of the Corps of Engineers.
Plans submitted with the application show that the applicant proposes to culvert and fill over
approximately 789 linear feet of an unnamed tributary that drains down to Sugar Creek for the
purpose of constructing a track/football stadium associated with construction of Phase II of South
West High School. The school site is located on a 111-acre tract. Phase I included the
construction of the main high school building, parking areas, roadways, and all athletic fields
except the football and track stadium and involved impacts to 96 linear feet of stream channel
and 0.28 acre of wetlands. These impacts were previously authorized for Phase I under
Nationwide Permit No. 26. The stream channel to be impacted under Phase II of the project has
been determined to have "important" aquatic functions. This stream is identified as "Stream B"
on the project plans. Some of the "important" characteristics of the stream include presence of
aquatic organisms, clean coarse sandy substrate, undercut banks, flow in channel, and stable
streambanks. In the event that a permit is issued for this project, the applicant is proposing
mitigation to offset the loss of stream channel on the property. The proposed mitigation options
include making appropriate payment into the state Wetland Restoration Program fund and/or
stream restoration/enhancement work to be performed somewhere within the Sugar Creek basin.
The latter option may include assistance with funding the Little Sugar Creek Upper Basin ` ?
Environmental Restoration Project-Phase II Belmont Avenue Regional Water Quality Basin. No l
wetlands will be impacted by the proposed project. Plans showing the work are included with
this public notice.
The State of North Carolina will review this public notice to determine the need for the
applicant to obtain any required State authorization. No Department of the Army (DA) permit
will be issued until the coordinated State viewpoint on the proposal has been received and
reviewed by this agency, nor will a DA permit be issued until the North Carolina Division of
Water Quality (NCDWQ) has determined the applicability of a Water Quality Certificate as
required by PL 92-500.
3
Generally, the decision whether to issue this Department of the Army (DA) permit will not
be made until the North Carolina Division of Water Quality (NCDWQ) issues, denies, or waives
State certification required by Section 401 of the Clean Water Act. The NCDWQ considers
whether or not the proposed activity will comply with Sections 301, 302, 306, and 307 of the
Clean Water Act. The application and this public notice for the Department of the Army (DA)
permit serves as application to the NCDWQ for certification.
Additional information regarding the Clean Water Act certification may be reviewed at the
offices of the Environmental Operations Section, North Carolina Division of Environmental
Management (NCDWQ), Salisbury Street, Archdale Building, Raleigh, North Carolina. Copies
of such materials will be furnished to any person requesting copies upon payment of
reproduction costs.
The North Carolina Division of Water Quality (NCDWQ) plans to take final action in the
issuance of the Clean Water Act certification on or after 7 July 2000.
All persons desiring to make comments regarding the application for Clean Water Act
certification should do so in writing delivered to the North Carolina Division of Water Quality
(NCDWQ), NCDENR, 1621 Mail Service Center, Raleigh, North Carolina 27699-1621, on or
before 7 July 2000, Attention: Mr. John Dorney.
Written comments pertinent to the proposed work, as outlined above, will be received in this
office, Attention: Mr. Steve Chapin, until 4:15 p.m., 14 July 2000, or telephone [phone].
I

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a, 2000 1000 0 2000
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LAW SITE LOCATION
SOUTH WEST HIGH SCHOOL
ENGINEERING AND ENVIRONMENTAL SERVICES NATIONS FORD ROAD
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REF: US DEPARTMENT OF AGRICULTURE, SOIL CONSERVATION SERVICE MAP, MECKLENBURG COUNTY, NC; SHEET NO. 6, DATED 1976.
SOIL SURVEY MAP
LAW SOUTH WEST HIGH SCHOOL
ENGINEERING AND ENVIRONMENTAL SERVICES NATIONS FORD ROAD
CHARLOTTE. NORTH CAROLINA CHARLOTTE, NORTH CAROLINA
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April 28, 2000
Mr. Steve Chapin
' U.S. Army Corps of Engineers ri
Regulatory Field Office I,
-,
151 Patton Avenue, Room 143 ?VIET!
Asheville, NC 28801-5006
Subject: Section 404 Individual Permit Application
' Charlotte-Mecklenburg Schools
South West High School - Nations Ford Road
Action ID 199931098 f! Q,
' Charlotte, North Carolina
LAW Project No. 30100-9-4305
' Dear Mr. Chapin:
On behalf of Charlotte-Mecklenburg Schools (CMS), enclosed please find a completed ENG Form
' 4345 with accompanying figures and supporting information for a Department of the Army
Section 404 Individual Permit application in the above-referenced matter (Attachment A). CMS
has retained Law Engineering and Environmental Services Inc. (LAW) to provide wetlands and
' permitting services for this project. CMS has authorized LAW to act as its agent in this matter
(Attachment B).

C
Project Overview
CMS has planned the construction of a high school campus on an estimated 111-acre site situated
between the proposed future extension of Archdale Drive and Nations Ford Road (Attachment C -
Figures 1 and 2). The proposed construction and grading limits of the project will encompass
approximately 63 acres of the 111-acre subject site. The educational complex will be located on
the portion of the site that fronts Nations Ford Road. This new academic facility will serve
approximately 1,600 students and will provide various classrooms, administrative/guidance
counselor offices, a multi-media area, library, kitchen, cafeteria, gymnasium, auditorium, and the
installation of an eight-inch sanitary sewer. Additionally, baseball and soccer fields, tennis courts,
and a football stadium with track and field facilities are planned for the subject property.
Completion of the proposed high school will occur in two phases (Phases I and II). Phase I
construction involves the main campus elements, while Phase II includes the football
stadium/track and field facilities. A future extension of Archdale Drive is proposed to border the
subject property to the south. This road extension is not part of the proposed South West High
School project. According to the City of Charlotte's Department of Transportation, completion of
Archdale Drive is not expected to occur within the next 20 years.I
I McDonald, D., 2000, Personal Communication, City of Charlotte Department of Transportation, Charlotte, NC.
LAW Engineering and Environmental Service,, Inc.
2801 Yorkmont Road
Charlotte, NC 28208
704-357-8600 • Fax: [phone]

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South West Nigh School - Section 404 Individual Permit Application April 28, 2000
LAW Project No. 30100-9-4305
Purpose and Need
The 2005 Generalized Land Plan for the Southwest District of Mecklenburg County has projected
population growth from 36,563 people in 1985 to 47,048 in 2005.2 Populations in the County for
ages 5-14 and 15-24 are predicted to increase from 93,608 and 83,888, respectively, in 1999 to
112,061 and 108,917, respectively, in 2015. This trend is evident statewide with an estimated
25,000 new students attending public school every year.3
Currently, the shortage of schools and classroom space has resulted in overcrowded classrooms
and the regular use of approximately 4,800 portable classrooms by over 100,000 students in the
state. To alleviate current overcrowded classroom conditions and to accommodate the future
increase in student population, North Carolina voters approved a $1.8 billion bond referendum to
refurbish aging public schools and to build new ones. As a result of revenues from this bond, the
Charlotte-Mecklenburg School System is in the process of constructing ten new schools: three
high schools (including the subject South West High School), three middle schools, and four
elementary schools.
Optimal sites for future schools are becoming increasingly limited due to the high rate of
development in Mecklenburg County. Advanced planning and land banking for new schools is a
current priority of the Charlotte-Mecklenburg School System.4 The desired size for the development
of new, standard-sized high schools, according to State regulations, is approximately 62 acres. A
typical site design plan for the construction of a new State high school includes the following
essential structural elements: classrooms (including, a library, cafeteria, computer rooms,
administrative/guidance offices, gymnasium, auditorium, and medical facilities), athletic fields (i.e.,
football, track, baseball, and soccer), and parking areas.
School Site Location Analysis
Initially, 14 potential locations for the proposed South West High School were considered. Of these
14, seven were eliminated because they were not large enough (< 62 acres) to accommodate a
standard-sized high school campus. The remaining seven sites were evaluated further, using several
criteria, including, suitable shape/configuration of property, acceptable separation distance from the
airport (noise issues), availability of on-site sewer and water, location (in relationship to other
schools), reasonable cost of land, and lack of significant environmental issues. The Nations Ford
Road site was the only site that met all of the aforementioned site selection criteria.
Jurisdictional Waters of the U.S., including Wetlands
The jurisdictional waters of the U.S., including wetlands, on the subject site were previously
delineated and surveyed by others. LAW was provided a copy of the U.S. Army Corps of
2 Charlotte-Mecklenburg Planning Commission, 1993, Southwest District Plan. 81 pp. Plus Attachment C.
3 Cenziper, D., 1999, "North Carolina School Bond Issue Backed," The Charlotte Observer, Charlotte, NC.
4 Charlotte-Mecklenburg Planning Commission, 1990, General Development Policies - District Plan. 51pp.
2
South West High School - Section 404 Individual Permit Application April 28, 2000
' LAW Project No. 30100-9-4305
' Engineers' (USACE) certified wetland boundary survey, dated January 19, 1999. LAW's review
of this survey and the existing site conditions determined that the delineation and survey of waters
of the U.S., centrally located on site, required revisions. Subsequently, the wetland area situated
downstream of the central non jurisdictional pond was redelineated in the field by LAW on April
20, 1999, using the Routine On-Site Determination Method as described in the 1987 "Corps of
Engineers Wetland Delineation Manual-.5 LAW also completed a series of stream functional
' assessments on the subject site utilizing the USACE's Intermittent Channel Evaluation Form. DS
Atlantic completed the survey of the refined boundaries of waters of the U.S. on July 20, 1999.
This revised wetland boundary survey was certified by the USACE on August 9, 1999
(Attachment C - Figure 3).
' Existing Conditions
' The principal surface water feature proximal to the project area is Sugar Creek. Sugar Creek,
located approximately 1,500 feet from the western boundary of the study area, flows south to its
confluence with Coffey Creek. Three unnamed, first-order tributaries of Sugar Creek (Streams A,
' B, and C) flow west across the project site (Attachment C - Figure 4). Stream A is located on the
northwestern portion of the project and originates from an approximate 0.13-acre scrub-shrub
wetland (Wetland A). Wetland A is located approximately 100 feet west of an existing on-site
1.45-acre jurisdictional pond (Pond A). Stream A has three to four foot high banks, an average
channel bottom width of two to three feet, and a water depth of approximately one inch. Riparian
vegetation associated with this stream included, Russian olive (Eleagnus umbellata), sweetgum
' (Liquidambar styraciua), flowering dogwood (Cornus Florida), red maple (Acer rubrum), and
black cherry (Prunus serotina).

C
Stream B is centrally located on the subject property and originates from an approximate 0.25 acre
wooded wetland (Wetland B). Stream B has four to five foot high banks, an average bottom
channel width of two to three feet, and a water depth of approximately one inch. Pond B, a non-
jurisdictional open water pond encompassing approximately 0.36 acre, is centrally located on the
subject site and situated an estimated 50 feet east of Stream B. Stream C originates from an
approximate 1.11-acre jurisdictional pond (Pond C) that is located on the southern portion of the
subject property. Riparian vegetation associated with Stream C includes, tulip poplar
(Liriodendron tulipifera), willow oak (Quercus phellos), flowering dogwood, red maple, and
ironwood (Carpinus caroliniana). Stream B joins Stream C approximately 1,200 feet downstream
from its origin. Stream C has one to two foot high banks, an average channel bottom width of two
to three feet, and a water depth of approximately one inch. It appears that Ponds A, B, and C may
have originally been constructed for agricultural use. All totaled, approximately 2.56 acres of
jurisdictional open water (Ponds A and C), 0.36 acre of non jurisdictional open water (Pond B),
0.38 acre of wetlands, and 3,5001f of perennial stream occur on the subject property.
Alternatives Analysis
The site poses a number of development challenges, including several small drainage features that
dissect the site, and rather substantial topographic relief along the eastern and southern half of the
site (Attachment C - Figure 3). Largely due to these site constraints, impacts to the small,
s Environmental Laboratory, 1987, Corps of Engineers Wetlands Delineation Manual, Technical Report Y-87-1, U.S. Army Corps of
Engineers Waterways Experiment Station, Vicksburg, MS.
3

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C

South West High School - Section 404 Individual Permit Application April 28, 2000
LAW Project No. 30100-9-4305
unnamed tributaries on the subject site are unavoidable. The original site plan (dated January
1999) for the proposed South West High School sited the football and track stadium on the
westernmost stream channel (Stream A). In accordance with the wetland boundary survey
prepared by others, this alternative would have resulted in impacts to over 900 If of Stream A and
0.13 acre of Wetland A. In an effort to minimize impacts to waters of the U.S., and as
recommended by LAW, Little & Associates Architects (LAA) revised the design plan to locate the
football/track complex to the area that included the shortest drainage feature (Stream B).
These alternatives were evaluated by LAA, in conjunction with CMS-Bovis, to determine which
alternative site plan would result in the least amount of environmental impact, while best
achieving a functionally efficient and safe high school campus. The issue of student safety was a
concern with placing fields a considerable distance from the main high school building. The
current recommended site plan places the athletic fields closer to the school, thereby improving
overall operations and student safety, while decreasing the amount of stream impact. Another
important design goal of LAA and CMS-Bovis, achieved by the current site plan, was to share
concessions and infrastructure between multiple fields (i.e., football/track stadium with adjacent
baseball fields).
The no-build alternative was not considered because of the urgent need to alleviate over-crowded
classrooms in this area of Mecklenburg County.
Unavoidable Impacts to Jurisdictional Waters of the U.S.
Charlotte-Mecklenburg Schools (CMS) has set a date of August 2001 for completion of the South
West High School. In order to achieve this critical classroom opening and athletic calendar
schedule, completion of the proposed high school will occur in two phases (Phases I and II)
(Figure 4). Phase I construction involves the main campus elements, while Phase II includes the
football/track stadium. Construction of Phase I of this project began in August 1999.
Phase I construction of the proposed South West High School involves the construction of the
main high school building, parking areas, roadways, all athletic fields except the football and track
stadium, and 2,085 if of eight-inch sewer. Construction associated with Phase I will impact
' approximately 0.28 acre of wetlands and 96 if of stream. A practice field and associated access
road resulted in impacts to approximately 0.03 acre of Wetland A. Phase I impacts also include 96
If of Stream B and 0.25 acre of Wetland B. The proposed eight-inch sewer will result in one
' crossing of Stream C (Attachment C - Figure 4) involving approximately 0.004 acre of stream bed
impact. LAW personnel prepared and submitted the necessary documentation for a NWP No. 26
pre-construction notification (PCN) - `Action Request' to USACE for Phase I of this project
' (Action ID 199931098). The USACE's written authorization to proceed with Phase I activities
wad dated August 9, 1999. A copy has been attached for your convenience (Attachment D).
' Construction of the football/track stadium (Phase II) will result in impacts to an additional 789
linear feet of Stream B with no additional impacts to vegetated wetlands. Approximately 95,000
cubic yards or of suitable soils will be discharged for this purpose. Subsequently, Phase II
construction will begin upon the issuance of the requisite Section 404 Individual Permit and
Section 401 Water Quality Certification from the USACE and NC Division of Water Quality
(DWQ), respectively. Phase II impacts will be addressed cumulatively with the above-described
Phase I impacts in this permit application.

South West High School - Section 404 Individual Permit Application April 28, 2000
' LAW Project No. 30100-9-4305
All totaled, Phase I and Phase II construction will result in unavoidable impacts to 0.28 acre of
wetlands and 885 If of stream bed.
' Minimization of Impacts to Jurisdictional Waters of the U.S.
Strategies to minimize impacts to jurisdictional waters of the U.S., associated with Phase I and
future Phase II include, 1) installing a silt fence and temporary diversion ditches around areas of
' construction; 2) steepening fill slopes associated with buildings to minimize disturbance/
construction limits; 3) redesigning the site plan to move the future proposed football and track
stadium to the area of the site with the lowest grade conditions.
' As previously described, the issue of student safety was a concern with placing fields a
considerable distance from the main high school building. The current recommended site plan
places the athletic fields closer to the school, thereby improving overall operations and student
safety, while decreasing the amount of stream impact. Another important design goal of LAA and
CMS-Bovis, achieved by the current site plan, was to share concessions and infrastructure between
multiple fields (i.e., football/track stadium with adjacent baseball fields).
' Potential impacts to jurisdictional waters of the U.S. associated with sedimentation and erosion will
be minimized through the implementation and maintenance of a State-approved erosion and
sedimentation control plan. The goal of this plan will be to minimize erosion and retain sediments, to
' the maximum extent possible, within the construction area. A stormwater management plan
(SWMP) has also been developed for the future high school. Details of the SWMP are presented
below.
' Compensatory Mitigation
LAW personnel performed a field reconnaissance to evaluate potential on-site and in-kind
' mitigation opportunities. The subject property has been relatively undisturbed since the 1970s
when the land was used for agricultural purposes. At present, predominately wooded on-site
drainage systems have been buffered from surrounding urban development. Stream channels
' appeared stable with little evidence of bank erosion, undercutting, etc. These stable streams
provide limited on-site preservation opportunities but cumulatively do not provide sufficient
mitigation to meet minimun regulatory-mandated requirements. Subsequently, CMS has proposed
' off-site compensatory mitigation to offset proposed impacts to jurisdictional waters of the U.S.
The Little Sugar Creek Upper Basin Environmental Restoration Project - Phase II Belmont
' Avenue Regional Water Quality Basin (Belmont Project) has been identified as a restoration
project that involves a suitable mitigation opportunity. The Belmont Project is located in the
Sugar Creek watershed of the Catawba River Basin. Specifically, the site is located along Little
' Sugar Creek upstream (north) of the CSX railroad crossing on the north side of Interstate-277, just
north of downtown Charlotte. The project extends along the west bank of Little Sugar Creek
approximately 2,500 feet to the 17th Street culvert.
The Sugar Creek watershed has been identified by NCDENR/DWQ as a priority sub-basin in the
Basinwide Wetlands and Riparian Restoration Plan for the Catawba River Basin. Mecklenburg
County Stormwater Services (MSWS) is currently seeking funding for this project and will assist

South West High School - Section 404 Individual Permit Application April 28, 2000
' LAW Project No. 30100-9-4305
CMS in meeting the goals and objectives under the requirements of the DWQ for compensatory
mitigation.6
' Currently, the Belmont Project is in the conceptual design phase and a detailed plan is not yet
available to provide more specific information about the exact linear footage of available stream
restoration. The current conceptual plan includes meandering diversion channels and introduced
meanders intermixed with constructed wetland forebays, infiltration meadows, and offline wetland
' areas. CMS will work closely with MSWS as the plans are developed for this project. CMS
anticipates two available options. The first option would be to contribute to the MSWS Belmont
Project by funding the restoration of 885 linear feet of perennial stream. The second option would
' be to contribute up to $125 per linear foot of impact toward implementation/construction of
stormwater best management practices (BMPs) or some combination of both option 1 and option
2. For example, in the event only 800 linear feet of stream will be restored, then compensation for
' the remaining 85 linear feet of impact will be in the form of a $10,625 contribution toward the Z .
implementation/construction of a stormwater BMP, such as a constructed wetland forbay. In the
event that final design and implementation of this project is delayed beyond fall 2000, CMS will
work with MSWS to identify a more suitable project. The identification and corresponding
schedule associated with another suitable project will be coordinated with the USACE and DWQ.
' Stormwater Management Plan
A Stormwater Management Plan (SWMP) for the project was developed by Little & Associates
' Architects, Inc. As designed, on-site stormwater will be conveyed to two wet detention ponds
designated BMP Pond #1 and #2 (Attachment C - Figure 4; Attachment E - Drawings 1 thru 7).
These wet ponds were designed in accordance with NCDENR DWQ's Stormwater Best i/
' Management Practices Manual (NCDENR DWQ, November 1995). The new ponds will treat
runoff from the developed project area. In accordance with the DWQ-BMP manual, the design
specifications for wet detention ponds are expected to meet the pollutant removal standard of 85%
removal of total suspended solids (TSS). BMP Pond #1 (0.75 acre) is located next to the two
' proposed on-site softball and baseball fields and will receive runoff from approximately 16.16
acres (8.34 acres of impervious and 7.82 pervious surface). BMP Pond #2 (0.62 acre) will be
located south of the proposed bus parking lot and will receive runoff from approximately 21.36
' acres (10.19 acres of impervious and 11.17 pervious surface). The small amount of stormwater
runoff eminating from the impervious area of the football stadium complex could not be routed
into these ponds. As an alternative, the stormwater will be routed through the drainage system and
' then directed to a "level spreader" located near Stream B. This approximately 900-foot long,
vegetated level spreader has been designed to both reduce water velocities and direct the collected
stormwater to overland sheet flow (Attachment E - Drawings 8 and 9). The stormwater will exit
' the level spreader, then sheet flow across an existing forested/grassed area approximately 160 feet
wide prior to entering undisturbed portions of Stream B. The stormwater detention plan was
approved by the City of Charlotte in August 1999 and is designed for a two-year and ten-year
event. The SWMP will also be submitted to DWQ for review and approval as part of the Section
401 Water Quality Certification application. Implementation and maintenance of the DWQ-
certified SWMP will minimize the project's potential impact to water quality/quantity.
' 6 Burg, A., 2000, Personal Communication, Mecklenburg County Storm Water Services, Charlotte, NC.
' 6
South West High School - Section 404 Individual Permit Application April 28, 2000
LAW Project No. 30100-9-4305
Protected Species
' On August 26, 1999, LAW's staff environmental scientists Gregg Antemann and Mary Murray
surveyed the property for the presence of the Federally-listed endangered Schweinitz's sunflower
(Helianthus schweintzii) and smooth coneflower (Echiniacea laevigata). A report prepared by
LAW summarizing the results of this protected species survey is included as Attachment F. In
addition, a database search by the North Carolina Natural Heritage Program did not reveal any
' records of known rare species, high quality natural communities, or significant Natural Heritage
Areas occurring within a one-mile radius of the subject property (Attachment G). No impacts to
federally- or state-protected species are expected as a result of this project.
' Cultural Resources
Potential cultural resources issues have also been investigated. Loretta Lautzenheiser, President
' and Principal Archaeologist for Coastal Carolina Research, Inc. (CCR), of Tarboro, NC,
completed a cultural resources literature and records review of the proposed project area in August
1999, prior to the initiation of Phase I construction. This report concluded that, "no archaeological
' sites or cultural resources were recorded within the boundaries of the proposed Nations Ford Road
Campus project area".7 An archaeological field reconnaissance survey was subsequently
performed in the fall of 1999. This survey targeted those portions of the site beyond the Phase I
' area, largely focusing on the proposed Section 404 permit area.8 During this survey, an
archaeological site was recorded (31 MK937). The site appeared to be the remains of a liquor still
that was determined to be less than 50 years old. The archaeological survey report for the
' proposed South West High School project concluded that, "No other archaeological resources
were recorded and no additional cultural resource investigations are recommended." This report,
entitled "Archaeological Survey on the Proposed South West High School in Mecklenburg
' County, North Carolina" was forwarded to the State Historic Preservation Office (SHPO) on
December 21, 1999. This report has been made part of SHPO's permanent files (Attachment H).
Recent interim policy promulgated by North Carolina Department of Environment and Natural
Resources, Division of Water Quality states that publicly-funded projects that involve a state
action, namely, a Section 401 Water Quality Certification, and that impact greater than or equal to
500 If of a perennial stream channel or one acre of freshwater wetlands, are subject to a review
under the State Environmental Policy Act (SEPA). Projects exceeding these impact thresholds
require the preparation of an Environmental Assessment (EA) in accordance with SEPA
' guidelines. LAW has been retained by Charlotte-Mecklenburg Schools and Bovis Construction
Corporation (CMS-Bovis) to provide these environmental services for the project. The EA has
been prepared pursuant to the requirements of the Act. The draft EA was forwarded to DWQ's
' Ms. Gloria Putnam, SEPA Coordinator, on March 16, 2000 for a completeness review. A
response from DWQ was received on April 18, 2000. The final revised EA will be forwarded to
the State Clearinghouse simultaneously with this application.
IF7
u
7 Coastal Carolina Research. Inc.. 1999. Cultural Resources Overview Report, Tarboro. NC.
8 Coastal Carolina Research. Inc.. 1999. Archaeological Survey Proposed South West High School Mecklenburg County Report.
Tarboro. NC.

South West High School - Section 404 Individual Permit Application
LAW Project No. 30100-9-4305

e

?1?
a

i

April 28, 2000
The review of this application is an essential element in maintaining current construction
schedules and ultimately in achieving the critical August 2001 classroom opening and athletic
calendar schedule. Your expeditious attention to this matter will be greatly appreciated. Please do
not hesitate to call Mike Iagnocco at [phone] if you have any questions.
Sincerely,
LAW ENGINEERING AND ENVIRONMENTAL SERVICES, INC.
Lisa J. Bed trom Michael agnocco
Staff Environmental Scientist Senior Environmental Scientist
G" W, Coll," QY LJ B With Permission
Allen W. Conger, P.W.S.
Principal ?i
Environmental Scientist 'y With Permission
Attachments: Attachment A - ENG Form 4345
Attachment B - Agent Authorization Form
Attachment C - Figures I - 4
Attachment D - USACE Authorization Form
Attachment E - Stormwater Management Plan
Attachment F - Natural Heritage Program Correspondence
Attachment G - Protected Species Survey
Attachment H - SHPO Correspondence
cc: John Dorney, DWQ
David Kubicki, Project Manager, CMS-Bovis
Thomas Balke, AIA, Senior Associate, LAA
a
1
APPLICATION FOR DEPARTMENT OF THE ARMY PERMIT
(33 CFR 326)
OMB APPROVAL NO. 0710-003
Expires October 1996
Public reporting burden for this collection of information Is estimated to average 5 hours per response, including the time for reviewing Instructions,
searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send
comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to
Department of Defense, Washington Headquarters Service Directorate of InformationOperstions and Reports, 1216 Jefferson Davis Highway, Suite
1204, Arlington, VA 22202-4302; and to the Office of Management and Budget, Paperwork Reduction Project 1071040031, Washington, DC
20603. Please DO NO RETURN your form to either of those addresses. Completed applications moat be submitted to the District Engineer having
jurisdiction over the location of the proposed activity.
PRIVACY ACT STATEMENT
I
Authority: 33 USC 401, Section 10; 1413, Section 404. Principal Purpose: These laws require permits authorising activities in, or affecting,
navigable waters of the United States, the discharge of dredged or fig material Into waters of the United States, and the transportation of dredged
' material for the purpose of dumping It Into ocean waters. Routine Uses: Information provided on this form will be used in evaluating the application
for a permit. Disclosure: Disclosure of requested Information is voluntary. If information is not provided, however, the permit application cannot be
processed nor can a permit be Issued.
' One set of original drawings or good reproducible copies which show the location and character of the proposed activity must be attached to this
application (see sample drawings and instructions) and be submitted to the District Engineer having jurisdiction over the location of the proposed
activity. An application that is not completed in fug wig be returned.

1. APPLICATION NO.
2. FIELD OFFICE CODE 13. DATE RECEIVED 14. DATE APPLICATION COMPLETED
' 5. APPLICANT'S NAME Mecklenburg Schools Building 8. AUTHORIZED AGENT'S NAME AND TITLE tonaponr?swtr@9 1
Services POC: David J. Kubicki
Michael A. Ia nocco Sr. Environmental Scientist.
' 6. APPLICANT'S ADDRESS 9. AGENT'S ADDRESS LAW Engineering and Environmenta.
3301 Stafford Drive Services, Inc.
Charlotte, North Carolina 28208 2801 Yorkmont Road, Suite 100
Charlotte. North Carolina 28208
N '7 A001 IrAKIVIC -10 k- -1-00A -MM
a. Residence a. Residence
b. Business 704-343-5310 b. Business 704-357-8600
11. STATEMENT OF AUTHORIZATION
I hereby authorize, Micha 1 A. Ia nocco to act in my behalf as my agent in the processing of this application and to
furnish, upon request, suppl emal information in support of this permit application. See Attachment B

LS, c.CU
SIGNATURE
DATE
NAME, LOCATION AND DESCRIPTION OF PROJECT OR ACTIVITY
12. PROJECT NAME OR TITLE Isee Wnstructmom)
South West High School
13. NAME OF WATERBODY, IF KNOWN ry.vn*•ar?
Unnamed tributaries to Sugar Creek and adjacent
' wetlands
15. LOCATION OF PROJECT

Mecklenburg
COUNTY
North Carolina
STATE
14. PROJECT STREET ADDRESS w&A9 &b?N
7026 Nations Ford Road
Charlotte, North Carolina 28217
16. OTHER LOCATION DESCRIPTIONS,. IF KNOWN, twok owdotw
I See Figure 1 and 2
17. DIRECTIONS TO THE SITE From Interstate-77 take Exit 4 (Nations Ford Road) and travel north on
Nations Ford Road for approximately 0.5 mile. The site is located on the left between Choyce
'Avenue and Echodale Drive.

South West High School - Section 404 Individual Permit Application April 28, 2000
LAW Project No. 30100-9-4305
' Supplemental Information - ENG Form 4345
Block 18. Nature of Activity
t Charlotte-Mecklenburg Schools (CMS) has set a date of August 2001 for completion of the
South West High School. In order to achieve this critical classroom opening and athletic
calendar schedule, completion of the proposed high school will occur in two phases (Phases I
and II) (Figure 4). Phase I construction involves the main campus elements, while Phase II
includes the football/track stadium. Construction of Phase I of this project began in August
1999.

a

Phase I construction of the proposed South West High School involves the construction of the
main high school building, parking areas, roadways, all athletic fields except the football and
track stadium, and 2,085 if of eight-inch sewer. Construction associated with Phase I will impact
approximately 0.28 acre of wetlands and 96 if of stream. A practice field and associated access
road resulted in impacts to approximately 0.03 acre of Wetland A. Phase I impacts also include
96 if of Stream B and 0.25 acre of Wetland B. The proposed eight-inch sewer will result in one
crossing of Stream C (Attachment C - Figure 4) involving approximately 0.004 acre of stream
bed impact. LAW personnel prepared and submitted the necessary documentation for a NWP
No. 26 pre-construction notification (PCN) - `Action Request' to USACE for Phase I of this
project (Action ID 199931098). The USACE's written authorization to proceed with Phase I
activities wad dated August 9, 1999. A copy has been attached for your convenience
(Attachment D).
Construction of the football/track stadium (Phase II) will result in impacts to an additional 789
linear feet of Stream B with no additional impacts to vegetated wetlands. Approximately 95,000
cubic yards or of suitable soils will be discharged for this purpose. Subsequently, Phase II
construction will begin upon the issuance of the requisite Section 404 Individual Permit and
Section 401 Water Quality Certification from the USACE and NC Division of Water Quality
(DWQ), respectively. Phase II impacts will be addressed cumulatively with the above-described
Phase I impacts in this permit application.
All totaled, Phase I and Phase II construction will result in unavoidable impacts to 0.28 acre of
wetlands and 885 if of stream bed.
Block 19. Project Purpose
The 2005 Generalized Land Plan for the Southwest District of Mecklenburg County has
projected population growth from 36,563 people in 1985 to 47,048 in 2005.1 Populations in the
County for ages 5-14 and 15-24 are predicted to increase from 93,608 and 83,888, respectively,
in 1999 to 112,061 and 108,917, respectively, in 2015. This trend is evident statewide with an
estimated 25,000 new students attending public school every year.2
i Charlotte-Mecklenburg Planning Commission, 1993, Southwest District Plan. 81 pp. Plus Attachment C.
2 Cenziper, D., 1999, "North Carolina School Bond Issue Backed," The Charlotte Observer, Charlotte, NC.
7

J
0

J

South West High School - Section 404 Individual Permit Application April 28, 2000
LAW Project No. 30100-9-4305
Currently, the shortage of schools and classroom space has resulted in overcrowded classrooms
and the regular use of approximately 4,800 portable classrooms by over 100,000 students in the
state. To alleviate current overcrowded classroom conditions and to accommodate the future
increase in student population, North Carolina voters approved a $1.8 billion bond referendum to
refurbish aging public schools and to build new ones. As a result of revenues from this bond, the
Charlotte-Mecklenburg School System is in the process of constructing ten new schools: three
high schools (including the subject South West High School), three middle schools, and four
elementary schools.
Block 20. Reason(s) for Discharge
Optimal sites for future schools are becoming increasingly limited due to the high rate of
development in Mecklenburg County. Advanced planning and land banking for new schools is a
current priority of the Charlotte-Mecklenburg School System.3 The desired size for the
development of new, standard-sized high schools, according to State regulations, is approximately
62 acres. A typical site design plan for the construction of a new State high school includes the
following essential structural elements: classrooms (including, a library, cafeteria, computer rooms,
administrative/guidance offices, gymnasium, auditorium, and medical facilities), athletic fields (i.e.,
football, track, baseball, and soccer), and parking areas.
Initially, 14 potential locations for the proposed South West High School were considered. Of
these 14, seven were eliminated because they were not large enough (< 62 acres) to accommodate a
standard-sized high school campus. The remaining seven sites were evaluated further, using
several criteria, including, suitable shape/configuration of property, acceptable separation distance
from the airport (noise issues), availability of on-site sewer and water, location (in relationship to
other schools), reasonable cost of land, and lack of significant environmental issues. The Nations
Ford Road site was the only site that met all of the aforementioned site selection criteria.
The site poses a number of development challenges, including several small drainage features
that dissect the site, and rather substantial topographic relief along the eastern and southern half
of the site (Attachment C - Figure 3). Largely due to these site constraints, impacts to the small,
unnamed tributaries on the subject site are unavoidable. The original site plan (dated January
1999) for the proposed South West High School sited the football and track stadium on the
westernmost stream channel (Stream A). In accordance with the wetland boundary survey
prepared by others, this alternative would have resulted in impacts to over 900 if of Stream A
and 0.13 acre of Wetland A. In an effort to minimize impacts to waters of the U.S., and as
recommended by LAW, Little & Associates Architects (LAA) revised the design plan to locate
the football/track complex to the area that included the shortest drainage feature (Stream B).
These alternatives were evaluated by LAA, in conjunction with CMS-Bovis, to determine which
alternative site plan would result in the least amount of environmental impact, while best
achieving a functionally efficient and safe high school campus. The issue of student safety was a
concern with placing fields a considerable distance from the main high school building. The
current recommended site plan places the athletic fields closer to the school, thereby improving
3 Charlotte-Mecklenburg Planning Commission, 1990, General Development Policies - District Plan. 51pp.

South West High School - Section 404 Individual Permit Application
LAW Project No. 30100-9-4305
April 28, 2000
overall operations and student safety, while decreasing the amount of stream impact. Another
important design goal of LAA and CMS-Bovis, achieved by the current site plan, was to share
concessions and infrastructure between multiple fields (i.e., football/track stadium with adjacent
baseball fields).
Block 23. Is Any Portion of the Work Already Complete?

1

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Yes. LAW personnel prepared and submitted the necessary documentation for a NWP No. 26
pre-construction notification (PCN) - `Action Request' to the U.S. Army Corps of Engineers
(USACE) for Phase I of this project (Action ID 199931098). Phase I construction was initiated
in August 1999. Phase I resulted in impacts of 0.28 acre of wetlands and 96 If of stream. Phase
II construction had not been started and is pending the issuance of the requisite Section 404
Individual Permit and Section 401 Water Quality Certification from the USACE and NC
Division of Water Quality (DWQ), respectively.

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AGENT CERTIFICATION OF AUTHORIZATION
k. ug lc g representing Charlotte_Mec:ienburg Schools, hereby
certify that I have auzl'Orized Michael A. Iagnocco of Law Fliaineering and Environmental SEnviees. Inc.
to act on my behaWand talc all aclicm necessary in the processing, issuance, and acceptance of the
Saction 404 permit and any and all smid"d and special conditions attached,
We hereby certify the above information submitted ii: tll,:i application is true and accurate to the best
of our knowled
AppJ' ? sigrlaturc Agent's signatu
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Date
Completion of this form will allow the went to sign all future applicmion correspondence.
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EXPLANATION
APPROXIMATE SITE LOCATION
2000 1000 0 2000
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REF: U.S.G.S. 7.5 MINUTE TOPOGRAPHIC MAP OF CHARLOTTE WEST, NC QUADRANGLE DATED 1980. APPROXIMATE SCALE IN FEET
SITE LOCATION
LAW SOUTH WEST HIGH SCHOOL
ENGINEERING AND ENVIRONMENTAL SERVICES NATIONS FORD ROAD
CHARLOTTE, NORTH CAROLINA CHARLOTTE, NORTH CAROLINA
PPREPARED? A DATEII,L, /,, CHECKED,,,,,,_ DATE ?1z'-7
1 0.0 JOB NO. 30100-9-4305 FIGURE 1
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Action Id. 199931098
U.S. ARMY CORPS OF ENGINEERS
WILMINGTON DISTRICT
county Mecklenburg
GENERAL PERMIT (REGIONAL AND NATIONWIDE) VERIFICATION
Property owner: Charlotte-Mecklenburg School System
' Address: 701 E. 2nd Street
Charlotte, NC 28208
Telephone No.:
Size and Location of project (water body, road name/number, town, etc.):
South West High School site on approx. 80 acre tract between Nations Ford Road and Sugar
Creek.
Description of Activity:
Fill approx. 0.28 acre of headwater wetlands and approx. 96 LF of unnamed tributary to Sugar
' Creek for the purpose of accomodating construction activity for the above referenced school
project.
Applicable Law: X Section 404 (Clean Water Act, 33 U.S.C. 1344).
(check all that apply) Section 10 (River and Harbor Act of 1899).
Authorization: Regional General Permit Number.
' 26 Nationwide Permit Number.
Your work is authorized by this Regional General (RGP) or Nationwide Permit (NWP) provided it is accomplished in
' strict accordance with the attached conditions and your submitted plans. For any activity within the twenty
coastal counties, before beginning work you must contact the N.C. Division of Coastal Management, telephone
[phone].
' Please read and carefully comply with the attached conditions of the RGP or NWP. Any violation of the conditions
of the RGP or the NWP referenced above may subject the pennittee to a stop work order, a restoration order, and/or
appropriate legal action.
This Department of the Army RGP or NWP verification does not relieve the permittee of the responsibility to obtain
any other required Federal, State, or local approvals/permits. The permittee may need to contact appropriate State
' and local agencies before beginning work.
If there are any questions regarding this authorization or any of the conditions of the General Permit or
Nationwide Permit, please contact the Corps Regulatory Official specified below.
Date August 9. 1999
Corps Regulatory Official Steve Chapin Telephone No. [phone]
' Expiration Date of Verification December 30. 1999
cc: Law Engineering & Environmental
CESAW Form 591
Revised July 1995

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NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF PARKS AND RECREATION
September 14, 1999
NCDENR
Ms. Mary C. Murray
JAMES B. HUNTJR.
.
GOVERNOR
LAW Engineering and Environmental Services
2801 Yorkmont Road
Charlotte, NC 28205
'WAYNEMCDEVITT
SECRETARY SUBJECT: Rare Species, High Quality Natural Communities, and
Significant Natural Heritage Areas at the Proposed CMS-
Nations Ford Development Project Site, Mecklenburg
County, North Carolina
DR._PHILIP.K. MCKNELLY
DIRECTOR,
Dear Ms. Murray:
The NC Natural Heritage Program (NCNHP) does not have a record of rare species,
' high quality natural communities, state park and recreation areas, or Significant
Natural Heritage Areas (SNHAs) at or within a 1.0 mile radius of the proposed CMS-
Nations Ford Site development project site between Echodale Drive, Sugar Creek,
and Choice Avenue in Mecklenburg County, North Carolina.
Enclosed is a list of rare species known to exist in Mecklenburg County. If habitat for
any of these species exists at the site, they may be present there. Consultant acquired
knowledge of the existing habitat should determine if a survey is necessary.
' John Finnegan, our GIS person, will be contacting you regarding your request for
lat/log coordinates of SNHAs for Mecklenburg County. Should you need to contact
him, his number is 919-715-8702. I am enclosing a list of these priority areas with
this letter.
' Please do not hesitate to contact me at the address below or call me at (919) 715-
8703 if you have any questions or need further information.
' Sincerely,
Susan Reece Giles
' Information Specialist
Natural Heritage Program
' Enclosure
1615 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-1 6 Is
' - PHONE [phone] FAX [phone]
AN EQUAL OPPORTUNITY / AFFIRMATIVE ACTION EMPLOYER - 50`Yo RECYCLED/10% POST-CONSUMER PAPER
GLOBAL AND STATE RANKS
' These ranks are determined by The Nature Conservancy's system of measuring rarity and threat status. "Global" refers to
worldwide ranks and "State" to statewide ranks.
' STATE RANK DEFINITIONS
S1 Critically imperiled in North Carolina because of extreme rarity or otherwise very vulnerable to extirpation in the state.
S2 Imperiled in North Carolina because of rarity or otherwise vulnerable to extirpation in the state.
S3 Rare or uncommon in North Carolina.
' S4 Apparently secure in North Carolina, with many occurrences.
S5 Demonstrably secure in North Carolina and essentially ineradicable under present conditions.
SA Accidental or casual; one to several records for North Carolina, but the state is outside the normal range of the species.
' SH Of historical occurrence in North Carolina, perhaps not having been verified in the past 25 years, and suspected to be still
extant in the state.
SR Reported from North Carolina, but without persuasive documentation for either accepting or rejecting the report.
SX Believed to be extirpated from North Carolina.
' SU Possibly in peril in North Carolina, but status uncertain; more information is needed.
S? Unranked, or rank uncertain.
S_B Rank of breeding population in the state. Used for migratory species only.
' S
N Rank of non-breeding population in the state. Used for migratory species only.
_
SZ_ Population is not of significant conservation concern; applies to transitory, migratory species.
GLOBAL RANK DEFINITIONS
G1 Critically imperiled globally because of extreme rarity or otherwise very vulnerable to extinction throughout its range.
G2 Imperiled globally because of rarity or otherwise vulnerable to extinction throughout its range.
' G3 Either very rare and local throughout its range, or found locally in a restricted area.
G4 Apparently secure globally, although it may be quite rare in parts of its range (especially at the periphery).
G5 Demonstrably secure globally, although it may be quite rare in parts of its range (especially at the periphery).
GH Of historical occurrence throughout its range.
GX Believed to be extinct throughout its range.
GU Possibly in peril, but status uncertain; more information is needed.
G? Unranked, or rank uncertain.
G_Q Of questionable taxonomic status.
G T Status of subspecies or variety; the G rank refers to the species as a whole.
ADDITIONAL DEFINITIONS
' Elements within a county are subdivided into "Current", "Historic", or "Obscure" records.
Current record: the element was last observed in the county at most 20 years ago.
Historic record: the element was last observed in the county more than 20 years ago.
' Obscure record: the date the element was last observed in the county is uncertain.
NOTE: Scientific and common names listed in parentheses are synonyms listed in US Fish and Wildlife Service, 1992, Endangered
and Threatened Species of the Southeastern United States (The Red Book).

I NC NATURAL HERITAGE PROGRAM, DIVISION OF PARKS AND RECREATION, DENR Jule 1999
' STATE FED. STATE
GLOBAL
SCIENTIFIC NAME COMMON NAME STATUS STATUS RANK RANK
Mecklenburg-Current
Vertebrate Animal
Carpiodes velifer Highfin Carpsucker
' Etheostoma collis Carolina Darter
Haliaeetus leucocephalus Bald Eagle
Lanius ludovicianus ludovicianus Loggerhead Shrike
t Invertebrate Animal
Villosa delumbis Eastern Creekshell
Villosa vaughaniana Carolina Creekshell
Vascular Plant
Anemone caroliniana Prairie Anemone
Aster georgianus Georgia Aster
Aster mirabilis Piedmont Aster
Dodecatheon meadia var meadia Eastern Shooting Star
' Echinacea laevigata Smooth Coneflower
Gnaphalium helleri var helleri Heller's Rabbit Tobacco
G4G5T3?
Helianthus schweinitzii Schweinitz's Sunflower
' Lotus helleri Carolina Birdfoot-trefoil
Silphium perfoliatum Northern Cup-plant
Silphium terebinthinaceum Prairie Dock
' Natural Community
Basic Oak--Hickory Forest -
Mesic Mixed Hardwood Forest -
(Piedmont Subtype)
' Piedmont/Low Mountain Alluvial
Forest
Upland Depression Swamp Forest -
Xeric Hardpan Forest -
' M
kl
b
-Hi
t
i
ec
en
urg
s
or
c
Vertebrate Animal
SC -
SC -
E (PT) LT
SC -
SR -
SC (PE) FSC
C -
T FSC
C -
SR -
E-SC LE
SR -
E LE
C FSC
SR -
C -
' Condylura cristata pop 1 Star-nosed Mole - Coastal Plain SC
Population
' Invertebrate Animal
Alasmidonta robusta
Lasmigona decorata
Vascular Plant
' Anemone berlandieri
Baptisia albescens
Botrychium jenmanii
Cardamine dissecta
' Carex projecta
Cirsium carolinianum
Delphinium exaltatum
Desmodium sessilifolium
' Hexalectris spicata
Isoetes virginica
Rhus michauxii
Solidago rigida ssp glabrata
Nonvascular Plant
Rhachithecium perpusillum
' Mecklenburg-Obscure
Vertebrate Animal
Cyprinella zanema pop 1
Carolina Elktoe EX
Carolina Heelsplitter E
S2 G4G5
S3 G3
S3B,S3N G4
S3B,S3N G5T5
S3 G4
S2 G2
S1 G5
S2 G2G3
S2 G2G3
S2 G5T5
S1 G2
S2?
S2 G2
S3 G3
S1 G5
S2 G4G5
- S3 G4
- S4 G5T5
- S5 G5
- S2 G3
- S3 G3G4
- S2 G5T2Q
- SX GX
LE S1 G1
Southern Anemone C - S1 G4?
Thin-pod White Wild Indigo SR - S2 G4
Alabama Grape Fern SR - S1 G3G4
Dissected Toothwort C - S2 G4?
Necklace Sedge C - Sl G5
Carolina Thistle C - S1 G5
Tall Larkspur E-SC FSC Sl G3
Sessile Tick-trefoil C - SH G5
Crested Coralroot SR - S2 G4?
Virginia Quillwort C FSC S1 G3
Michaux's Sumac E-SC LE S2 G2
Southeastern Bold Goldenrod SR - S2 G5T4
Budding Tortula C - S1S2 G3?
Santee Chub - Piedmont SR - S3 G3T3Q
Population
¦ -
I NC NATURAL HERITAGE PROGRAM, DIVISION OF PARKS AND RECREATION, DENR July 1999

Protected Species Survey
Proposed South West High School
Charlotte, North Carolina
Law Project No. 30100-9-4305
A protected species survey was conducted on the 80-acre proposed South West High School site in
Charlotte, North Carolina by Law Engineering and Environmental Services, Inc. (LAW) to
determine the potential for the occurrence of animal and plant species listed as endangered or
threatened by current Federal or State regulations [Federal Endangered Species Act of 1973 (16
USC 1531-1543); the North Carolina Endangered Species Act, (N.C.G.S. Sect. 113 Article 25);
and the North Carolina Plant Protection and Conservation Act of 1979 (General Status
19b106:202.12-22)]. The assessment consisted of a literature and records search and pedestrian
survey performed by LAW's staff environmental scientists Gregg Antemann and Mary Murray on
August 26, 1999. Observed plants were identified to the lowest taxonomic unit level possible
and/or necessary to determine if the observed specimen was a protected species.
' The North Carolina Natural Heritage Program (NCNHP) provided existing data concerning the
potential occurrence of threatened or endangered species within Mecklenburg County, North
Carolina (Attachment A). This database indicates that there are six federally and/or state

endangered species which may occur in Mecklenburg County, namely, smooth coneflower
(Echinacea laevigata), Schweinitz's sunflower (Helianthus schweinitzii), Carolina heelsplitter
(Lasmigona decorata), Michaux's sumac (Rhus michauxii), tall larkspur (Delphinium exaltatum)
and the bald eagle (Haliaeetus leucocephalus). Correspondence with NCNHP did not reveal any
records of known rare species, high quality natural communities, or significant Natural Heritage
Areas occurring within a one-mile radius of the subject property. Federally and/or state threatened
and endangered species that may occur within Mecklenburg County and their respective habitats
are listed and described below:
Smooth coneflower (Echinacea laevigata)
This perennial plant generally occurs in basic to circumneutral soils of meadows and woodlands.
The plant typically prefers upland oak-hickory or mixed oak-pine forests, old field habitat, and
roadsides.
Schweinitz's sunflower (Helianthus schweinitzii)
This perennial plant generally occurs along clearings, roadsides, transmission line right of ways
(R/Ws), and infrequently mowed areas. The plant generally prefers shallow clayey to sandy-clay
loams weathered from metasedimentary rocks, often with large quantities of slaty rock fragments,
and/or gravel.
Carolina heelsplitter (Lasmigona decorata)
This mussel occupies cool, slow-moving, small- to medium-sized streams and rivers. The only
known population of this species within the Catawba River Basin occurs in Waxhaw Creek.

L

Proposed South West High School April 28, 2000
LAW Project No. 30100-9-4305
Michaux's sumac (Rhus michauxii)
This shrub grows in sandy or rocky open woods in association with basic soils. Once known from
three States, Georgia, South Carolina, and North Carolina, this plant now has viable populations
only in North Carolina. This plant is restricted to seven counties of North Carolina. It appears to
have been extirpated from Mecklenburg County.
Tall larkspur (Delphinium exaltatum)
This plant was listed as an obscure record and has not been documented in Mecklenburg County
within at least the last 50 years.
Bald eagle (Haliaeetus leucocephalus) T
' This large bird of prey generally nests along lakes, rivers, and the coast where there is an
ample food supply nearby.
LAW's initial on-site field investigation conducted on August 26, 1999 to determine the presence
of suitable habitat for the aforementioned protected species, revealed that Schweinitz's sunflower
and smooth coneflower had the greatest probability of occurring on the subject property.
Occurrences of the Carolina heelspitter have not been documented in the portion of the Catawba
River Basin in which the subject property is locatedl. Michaux's sumac has been extirpated from
' Mecklenburg County2.
EXISTTNG CONDITIONS
On August 26, 1999, LAW's staff environmental scientists Gregg Antemann and Mary Murray
' surveyed the property for the presence of the Federally-listed endangered Schweinitz's sunflower and
smooth coneflower. To aid in the identification of Schweinitz's sunflower, a living specimen of this
plant was examined on April 26, 1999 from a nearby location.
' HABITATS
The proposed South West High School site is largely wooded. The predominant natural vegetative
community located within the subject property can be described as a Dry Oak/Hickory Forest
(Schafale and Weakley, 1990). This habitat includes, water oak (Quercus nigra), white oak (Q.
alba), red oak (Q. falcata), Virginia pine (Pinus virginiana), sourwood (Oxydendrum arboreum),
flowering dogwood (Corpus Florida), privet (Ligustrum sinense), Russian olive (Eleagnus
' umbellata), and wild grape (Vitus rotundiolia). The canopy trees are characterized by tree heights
of 60-80 feet and diameters at breast height of approximately one foot.
' The field, associated with the former on-site farm, is located on the northeastern corner of the site
and is dominated by ragweed (Ambrosia artemisiifolia), blackberry (Rubus argutus), winged
sumac (Rhus copallina), goldenrod (Solidago sp.), Aster spp., poke weed (Phytolacca americana),
Japanese honeysuckle (Lonicera japonica), hackberry (Celtis laevigata), Virginia pine (Pinus
virginiana), wild cherry (Prunus serotina), and black oak (Quercus nigra). Vegetation associated
Fridell, John A. 1997 Recovery Plan for Carolina Heelsplitter (Lasmigona decorata) Lea. Prepared for
United States Fish and Wildlife Service, Southeast Region, Atlanta, Georgia.
' United States Fish and Wildlife Service. 1993. Endangered and Threatened Species of the Southeastern
United States (The Red Book). Region 4.

Proposed South West High School April 28, 2000
' LAW Project No. 30100-9-4305
with on-site riparian areas includes, white oak, flowering dogwood, black gum (Nyssa sylvatica),
red maple (Acer rubrum), and wild cherry.
'
SOILS
The soils on the South West High School site were mapped by the Soil Conservation Service
(SCS) Mecklenburg County Soil Survey as Cecil sandy clay loam (2-8% slopes), Cecil sandy loam
(8-15% slopes), Mecklenburg fine sandy loam (2-8% slopes), Mecklenburg fine sandy loam (8-
15% slopes), Monacan, Pacolet sandy loam (15-25% slopes), and Wilkes loam (15-25% slopes),
Cecil soils (CeB2 and CeD2) dominate the project area. These well-drained soils are typically
located on the broad ridges and side slopes of uplands. Monacan soils, associated with the on-site
water features, have the potential to contain inclusions of hydric soils. The remaining soils on the
subject property are well drained and are generally found on the ridges or side slopes of upland
areas. The subject property is not located within the 100-year floodplain.
FINDINGS
' Schweinitz's Sunflower
Schweinitz's sunflower was not found during the protected species survey.
This species is a perennial herb limited to 35 known populations in North and South Carolina3. Its
habitat includes roadsides, old pastures, transmission line R/Ws, open areas, and edges of upland
woods on moist and dryish clays, clay loams, or sandy clay-loams that often have a high gravel
content and are moderately podzolized (formation of a layer from the leaching of minerals and
organics from top layers combined with material in lower layers). Schweinitz's sunflower is
' found primarily on Iredell soils. This species' survival is largely threatened by
destruction/alteration of its open habitat, fire suppression, residential/commercial development,
and right of ways maintenance practices. According to the NCNHP, there is not a known
' occurrence of a Schweinitz's sunflower population within a one-mile radius of the subject site.
Our field investigations of the project areas containing both Cecil soils and open field habitat were
examined for the presence of this plant. The Schweinitz's sunflower was not observed within
these areas of the project corridor.
'
Smooth Cone flower
' Smooth Coneflower was not found during the protected species survey.
The current range of this plant includes Virginia, North Carolina, South Carolina, and Georgia.
Population numbers in these states are as follows: Virginia (6), North Carolina (6), South Carolina
(7), and Georgia (3). Populations are known to occur in Durham and Granville Counties in North
Carolina4. The habitat of smooth coneflower includes open woods, roadsides, transmission line
right of ways, and clear areas. In North Carolina this perennial plant usually occurs in magnesium
' 3 Weakley, Alan S. and R.D. Houk. 1994. Recovery Plan for Schweinitz's Sunflower (Helianthus
schweinitzli). Prepared for United States Fish and Wildlife Service, Southeast Region, Atlanta, Georgia.
United States Fish and Wildlife Service. 1993. Endangered and Threatened Species of the Southeastern
' United States (The Red Book). Region 4.
' Proposed South West High School April 28, 2000
' LAW Project No. 30100-9-4305
and calcium-rich soils associated with diabase and gabbro. This species requires periodic
disturbance such as fire and selective thinning (of competitive woody plants). Without repeated
' disturbances, the open habitat preferred by smooth coneflower can be overrun by herbs, shrubs,
and trees. The existence of this species is threatened most by residential/industrial development,
competition with woody plants, roadway construction, illegal removal, and particular types of
' transmission line right of way maintenance practices.
Based on the habitat requirements for this coneflower, the only likely habitat observed on the
' subject property was along roadsides and the sewer line R/W. These areas of the site were
examined for evidence of the smooth coneflower, but no plants were found. This area of the site
was examined for evidence of the smooth coneflower, but no plants were found.
SUMMARY
' The protected species survey conducted August 26, 1999 on the proposed South West High School
site in Charlotte, NC did not reveal the presence of any of the aforementioned federally protected
plants or animals. Moreover, the development of the proposed subject site is not likely to impact
any threatened or endangered species. The only potential habitats for Schweinitz's sunflower and
smooth coneflower on site are roadsides and the transmission line right of way. Since these areas
' are under frequent disturbance, it is unlikely that any extant (i.e., still existing) populations of
Schweinitz's sunflower and smooth coneflower occur on the subject property. Based on habitat
requirements and field observations, this protected species assessment concludes that the
likelihood of the occurrence of Schweinitz's sunflower and smooth coneflower on the South West
High School site is remote.

L
r

d„s STATE a. %P
r
' North Carolina Department of Cultural Resources
State Historic Preservation Office
David L. S. Brook, Administrator
James B. Hunt Jr., Governor Division of Archives and History
' Betty Ray McCain, Secretary Jeffrey J. Crow, Director
February 24, 2000
' Michael A. Iagnocco
LAW Engineering
2801 Yorkmont Rd.
' Charlotte, NC 28208
Re: Proposed Construction of South West High School, Nations Ford Rd., Mecklenburg
' County, State Clearinghouse 00-E-4300-0129
Dear Mr. Iagnocco:
Thank you for your letter of December 21, 1999, transmitting the archaeological report on the
subject project. Although we did not recommend an archaeological survey, we will place the
report in our permanent files for future reference.
' The above comments are made pursuant to Section 106 of the National Historic Preservation Act
and the Advisory Council on Historic Preservation's Regulations for Compliance with Section
106 codified at 36 CFR Part 800.
' Thank you for your cooperation and consideration. If you have questions concerning the above
comment, please contact Renee Gledhill-Earley, environmental review coordinator, at 919/733-
4763.

Sincerely, o n r n(?
_&J
l w David Brook
Deputy State Historic Preservation Officer
1 DB:scb

cc: Loretta Lautzenheiser
Location Mailing Address Telephone/Fax
ADMINISTRATION 507 N. Blount St., Raleigh NC 4617 Mail Service Center, Raleigh NC 27699-4617 [phone] 733-8653
ARCHAEOLOGY 421 N. Blount St., Raleigh NC 4619 Mail Service Center, Raleigh NC 27699-4619 [phone] 715-2671
RESTORATION 515 N. Blount St., Raleigh NC 4613 Mail Service Center, Raleigh NC 27699-4613 [phone] 715-4801
SURVEY & PLANNING 515 N. Blount St., Raleigh NC 4618 Mail Service Center, Raleigh NC 27699-4618 [phone] 715-4801

LAW
ENGINEERING AND ENVIRONMENTAL SERVICES
LAW ENGINEERING AND ENVIRONMENTAL SERVICES, INC.
2801 Yorkmont Road, Suite 100 Date: April 28, 2000 Project No.: 30100-9-4305
Charlotte NC, 28208 Project Name: South West High School
[phone] FAX [phone] Attention: John Dorney
Re: Section 404 Individual Permit Application
TO: Mr. John Dorney
Non-discharge Branch/Wetlands/401 Unit
1621 Mail Service Center ()()0582
Raleigh, NC 27699-1621 LETTER OF TRANSMITTAL

WE ARE SENDING YOU X Attached Under separate cover via the following items:
Prints Plans Samples Specifications
Copy of letter Change order Other
IF ENCLOSURES ARE NOT AS NOTED. KINDLY NOTIFY US AT ONCE
COPIES DATE NO. ,AIATFft.,l .?,
DESCRIPTION x.
7 4/28/00 1 Section 404 Individual Permit Application
1 4/28/00 1 Check Number 617 - $475.00

ECEIVLO

THESE ARE TRANSMITTED as checked below:
X For approval _ Approved as submitted
_ For your use _ Approved as noted
As requested _ Returned for corrections
For review and comment
_ Resubmit
_ Submit _
Return
copies for approval
_ copies for distribution
corrected prints
REMARKS: Law Engineering and Environmental Services, Inc. is submitting the necessary documentation for A Section
404 Individual Permit Application on the above-identified project and a check for $475.00 (processing fee). Please contact
Michael A. Iagnocco at (704)-357-8600, if you have any questions regarding this information.
RESPECTFULLY SUBMITTED,
LAW ENGINEERING AND ENVIRONMENTAL SERVICES, INC.
19 ? csei?
Michael A. Iagnocco
Senior Environmental Scie tist
?y L J 3 With Permission
Copy To: File
o,(tkyL (.j. COK_??
Allen W. Conger, P.W.S.
Principal
Environmental Scientist
By With Permission
L_:R _DS
WATER QAlfi'

North Carolina Wildlife Resources Commission
Charles R. Fullwood, Executive Director
MEMORANDUM
TO: John R. Dorney, Division of Water Quality
Dept. of Environment and Natural Resources
FROM: Ron Linville, Regional Coordinator
Habitat Conservation Program /_
DATE: May 11, 2000
SUBJECT: Review of an Application for Charlotte-Mecklenburg Schools, South West High
School, Mecklenburg County
The applicant is requesting a 401 Water Quality Certification from the North Carolina
Division of Water Quality. The proposed new school will impact 0.28 acres of wetlands and 96
linear feet of stream during Phase I (completed). Additionally, Phase II will impact 789 linear
feet of stream for a total impact of 0.28 acres of wetlands and 885 linear feet of stream. Wet
stormwater detention facilities will be utilized for the entire project with the exception of the
track/football fields. The NCWRC has reviewed information provided by the applicant, and
field biologists on our staff are familiar with habitat values of the project area. These comments
are provided in accordance with provisions of the Clean Water Act of 1977 (33 U.S.C. 466 et.
seq.) and the Fish and Wildlife Coordination Act (48 Stat. 401, as amended; 16 U.S.C. 661-
667d).
The North Carolina Wildlife Resources Commission will concur with the project
providing that areas not developed are permanently preserved and utilized for green spaces or
environmental learning facilities. These areas, especially the areas that will receive overland
sheet flow from the track/football areas, should be preserved in a natural condition. They should
not be manicured and mowed, as this will preclude natural diversity. We do not recommend that
funds used for stormwater detention facilities be utilized for mitigation unless the school system
exceeds 401 detention requirements by providing additional habitat measures as recommended
below. Otherwise, mitigation should be in kind or through standard mitigation payments to a
mitigation bank within the same or nearby subbasin area.
Mailing Address: Division of Inland Fisheries • 1721 Mail Service Centcr • Raleigh, NC 27699-1721
Telephone: [phone] ext. 281 • Fax: [phone]}3
Char-Meck SW High School 2 05/12/00
The North Carolina Wildlife Resources Commission (NCWRC) continues to be
concerned about the fragmentation and loss of forested areas or woodlands as development
occurs in areas near the City of Charlotte and in or near Mecklenburg County. We appreciate the
efforts to protect water quality by providing stormwater detention and treatment. However, the
NCWRC does not encourage the utilization of existing waters or wetlands for water quality
treatment facilities. We prefer to have streams relocated by utilizing bioengineering techniques
whenever possible. If relocation of a stream is not economically feasible or practicable, we
recommend that the wet detention facility include vegetated littoral shelves for aquatic edge
habitat as routinely required in 401 Certifications.
In an effort to restore avian and terrestrial habitats as well as enhance aquatic/detritus
habitats in the detention facility, we recommend that the applicant provide for the restoration of
tree and shrub species similar to those currently found on the site around the upper portions of
any detention facilities. Native species are recommended. These trees and shrubs should be
planted around and on the upper third of the detention structure, excluding the dam. They should
provide habitat benefits that could offset those functions lost by development, partially restore
aquatic habitats, reduce exposure of the water surface to sunlight thereby minimizing thermal
pollution, provide essential summer and winter habitats as well as provide an aesthetically
pleasing green space. Essentially, these plantings should provide water quality and habitat
benefits as well as provide park areas for residents.
Instead of using the typical fescue grasses, the upper interior and exterior of the structure
should be planted with the following mix:
Spring/Summer Mixture, May 1 - Sept. 15 Fall/Winter Mixture, Sept. 15 - April 30
Browntop millet 20 lbs/a Rye grain 120 lbs/a
Korean lespedeza* 20 lbs/a Korean lespedeza* 20 lbs/a
Shrub lespedeza 1 lb/a Shrub lespedeza 1 lb/a
Switchgrass 10 lb/a Partridge pea 10 lb/a
* On slopes less than 3:1 use Korean lespedeza
On slopes greater than 3:1 use Crown Vetch
Add one of the following to the above mixture
Crown Vetch 5 lbs/acre
Ladino Clover 5 lbs/acre Lime & fertilize disturbed areas according
Alfalfa 5 lbs/acre to NCRS soil test and recommendations.
(Note: Mowing should be limited to early spring and should only occur as needed to prevent tree growth
on the dam or other areas. Mowing on a 2-3 year schedule should suffice.)
Trees and shrubs (1 year bare root seedlings) should be planted randomly at a minimal
rate of 100 trees per acre on the top and upper portions of the structure and at a minimal rate of
150 per acre around the normal water elevation and littoral shelf area. The following list of tree
species may assist in providing habitat benefits:
Loblolly Pine* Red Cedar Black Gum American Holly Dogwood
Hickory Sumac White Oak Willow Oak Red Maple**
Swamp Chestnut Oak Viburnum Green Ash Ironwood Black Cherry
Persimmon Water Oak Spice Bush Silky Dogwood Willow (sp)
Char-Meck SW High School
05/12/00
Other species may be utilized depending on site requirements and availability. Pines* should not exceed
15% of the reforestation. No more than 20% of the tree species will be of a single species. An 80%
success rate is acceptable over five years. Large or fast growing trees like Sycamore and Maple* * may not
be appropriate around detention facilities.
Note: A planting schedule provided by a landscape architect or natural resource agency is acceptable
providing that naturally occurring native (preferred) species or non-invasive plants are utilized.
Again, we recommend that the school system set aside the remaining undeveloped
acreage for green spaces and outdoor laboratories. These recommendations should be
considered for the multiple benefits that they could provide to the community and to the
environment. Initial costs should not be prohibitive and the long-term costs should be reduced,
as constant mowing would not be necessary in the naturalized areas. Thank you for the
opportunity to review and comment on this project. If you have any questions regarding these
comments, please contact me at 336/769-9453.
Cc: Mooresville Regional Office 401 Section
Steve Chapin, USACOE

DEPARTMENT OF THE ARMY
WILMINGTON DISTRICT, CORPS OF ENGINEERS
P.O. BOX 1890
WILMINGTON, NORTH CAROLINA 28402-1890
IN REPLY REFER TO June 14, 2000
Regulatory Division
a T"k,
Action ID No. 200030806
pa
Mr. John Dorney
North Carolina Department of Environment
and Natural Resources
Division of Water Quality - Wetlands Section
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Dear Mr. Dorney:
Enclosed is the application of Charlotte-Mecklenburg Schools for Department of the Army
authorization and a State Water Quality Certification to impact 789 linear feet of an unnamed
tributary to Sugar Creek for the purpose of accommodating the construction of South West High
School and associated facilities, on Nations Ford Road, in Charlotte, Mecklenburg County,
North Carolina. Your receipt of this letter verifies your acceptance of a valid request for
certification in accordance with Section 325.2(b)(ii) of our administrative regulations.
We are considering authorizing the proposed activity pursuant to Section 404 of the Clean
Water Act, and we have determined that a water quality certification is required under the
provisions of Section 401 of the same law. A Department of the Army permit will not be granted
until the certification has been obtained or waived.
In accordance with our administrative regulations, in most cases, 60 days after receipt of a
request for certification is a reasonable time for State action. Therefore, if you have not acted on
the request, or asked for an extension of time, by 7 July 2000, the District Engineer will deem
that waiver has occurred.
Questions or comments may be addressed to Mr. Steve Chapin, Asheville Field Office,
Regulatory Division, at [phone].
Sincerely,
Robert W. Johnson
Office Chief
Asheville Regulatory Field Office
Enclosure/as
./ ,N.
Copies Furnished (without enclosure):
Mr. Doug Huggett
NCDENR - Coastal Management Division
1638 Mail Service Center
Raleigh, North Carolina 27699-1638
A A LAW
ENGINEERING AND ENVIRONMENTAL SERVICES
LAW ENGINEERING AND ENVIRONMENTAL SERVICES, INC.
2801 Yorlanont Road, Suite 100 Date: April 28, 2000 Project No.: 30100 -9-4305
Charlotte NC, 28208 Project Name: South West High School
[phone] FAX [phone] •...?tion Mr Steve Chapin
TO: Mr. Steve Chapin
U.S.Army Corps of Engineers
Regulatory Branch
151 Patton Avenue, Rm. 1431
Asheville, NC 28801-5006

G€iOUP
t' SFCI
4J. ZUbO
LETTER OF TRANSMITTALt'
WE ARE SENDING YOU _ CAttached Under separate cover via "r -mil
ovirlg items:
Prints Plans Samples Specifications
Copy of letter Change order Other
IF ENCLOSURES ARE NOT AS NOTED KINDLY NOTIFY US AT ONCE
COPIES DATE NO. DESCRIPTION
1 4/28/00 1 Section 404 Individual Permit Application
THESE ARE TRANS14nTTED as checked below:
X For approval
_ For your use
_ As requested
For review and comment
- Approved as submitted
Approved as noted
Returned for corrections
_ Resubmit
_ Submit _
Return _
copies for approval
copies for distribution
corrected prints
REMARKS: Law En&eering and Environmental Services. Inc. is submitting the necessary documentation for a Section
404 Individual Permit Application for the above-identified project. Please contact Michael A. Iagnocco at (704)-357-8600
if you have any uuestions regarding this information.
RESPECTFULLY SUBMITTED, Copy To: File
LAW ENGINEERING AND ENVIRONMENTAL SERVICES, INC.
q4
a
Michael A. Iagnocco
Senior Environmental Sciieff' t
?J 13 With Permission
GJAA W. t?
Allen W. Conger, P.W.S.
Principal
Environmental Scientist
BY With Permission
0
n
is a
41,
0
r
r,
LAWGIBB
GRO Jn
April 28, 2000
Mr. Steve Chapin
U.S. Army Corps of Engineers
Regulatory Field Office
151 Patton Avenue, Room 143
Asheville, NC 28801-5006
Subject: Section 404 Individual Permit Application
Charlotte-Mecklenburg Schools
South West High School Nations Ford Road
Action ID 199931098
Charlotte, North Carolina
LAW Project No. 30100-9-4305
ANDS GROUP ..
UAII..IT1f ;-
Dear Mr. Chapin:
On behalf of Charlotte-Mecklenburg Schools (CMS), enclosed please find a completed ENG Form
4345 with accompanying figures and supporting information for a Department of the Army
Section 404 Individual Permit application in the above-referenced matter (Attachment A). CMS
has retained Law Engineering and Environmental Services Inc. (LAW) to provide wetlands and
permitting services for this project. CMS has authorized LAW to act as its agent in this matter
(Attachment B).
Project Overview
CMS has planned the construction of a high school campus on an estimated 111-acre site situated
between the proposed future extension of Archdale Drive and Nations Ford Road (Attachment C -
Figures 1 and 2). The proposed construction and grading limits of the project will encompass
approximately 63 acres of the 11.1-acre subject site. The educational complex will be located on
the portion of the site that fronts Nations Ford Road. This new academic facility will serve
approximately 1,600 students and will provide various classrooms, administrative/guidance
cotiriMelor offices, a multi-media area, library, kitchen, cafeteria, gymnasium, auditorium, and the
installation of an eight-inch sanitary sewer. Additionally, baseball and soccer fields, tennis courts,
and a football stadium with track and field facilities are planned for the subject property.
Completion of the proposed high school will occur in two phases (Phases I and H). Phase I
construction involves the main campus elements, while Phase II includes the football
,, stadium/track and field facilities. A future extension of Archdale Drive is proposed to border the
r subject property to the south. This road extension is not part of the proposed South West High
School project. According to the City of Charlotte's Department of Transportation, completion of
Archdale Drive is not expected to occur within the next 20 years.l
1
McDonald, D., 2000, Personal Communication, City of Charlotte Department of Transportation, Charlotte, NC.
LAW Engineering and Environmental Services, Inc.
2801 Yorkmont Road
Charlotte, NC 28208
704-357-8600 • Fax: [phone]
MAY 22 2000 09:52 FP. LAW ENGINEERING 3578636 TO 18282714858 P.03/03
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South Rest High School -Section 404Indvidna!PerndtApplication Apr1128, 2000
LAWProjedNo.30100.9 4305
Purpose and Need
a The 2005 Generalized Land Plan for the Southwest District of Mecklenburg County has projected
population growth from 36,563 people in 1985 to 47,048 in 2005? Populations in the County for
ages 5-14 and 15-24 are predicted' to increase from 93,608 and 83,888, respectively, in 1999 to
112,061 and 108,917, respectively, in 2015. This trend is evident statewide with an estimated
25,000 new students attending public school every year.3
Currently, the shortage of schools and classroom space has resulted in overcrowded classrooms
and the regular use of approximately 4,800 portable classrooms by over 100,000 students in the
state. To alleviate curront overcrowded classroom conditions and to accommodate the future
increase in student population, North Carolina voters approved a $1.8 billion bond referendum to
refurbish aging public schools and to build new ones. As a result of revenues from this bond, the
Charlotte-Mecklenburg School System is in the process of constructing ten new schools: three
high schools (including the subject South West High School), three middle schools, and four
elementary schools.
Optimal sites for future schools are becoming increasingly limited due to the high rate of
development in Mecklenburg County. Advanced planning and land banking for new schools is a
current priority of the Charlotte-Mecklenburg School System 4 The desired size for the development
of new, standard-sized high. schools, according to State regulations, is approximately 62 acres. A
1 typical site design plan for the construction of a new State high school includes the following
f. essential structural elements: classrooms (including, a library, cafeteria, computer rooms,
administrative/guidance offices, gymnasium, auditorium, and medical facilities), athletic fields (i.e.,
football, track, baseball, and soccer), and parking areas.
School Site Location Analysis
Initially, 14 Potential locations for the proposed South West High School were considered. Of these
P.?
14, seven were eliminated because they were not large enough (< 62 acres) to accommodate a
standard-sized high school campus. The remaining seven sites were evaluated further, using several
criteria, including, suitable shape/configuration of property, acceptable separation distance from the
airport (noise issues), availability of on-site sewer and water, location (in relationship to other
schools), reasonable cost of land, and lack of significant environmental issues. The Nations Ford
Road site was the only site that met all of the aforementioned site selection criteria.
0
Jurisdictional Waters of the U.S.. including Wetlands
The jurisdictional waters of the U.S., including wetlands, on the subject site were previously
delineated and surveyed by others. LAW was provided a copy of the U.S. Army Corps of
2 Charlotte-Meddenburg Planning Commission, 1993, Southwest Di!Wct Plan. 81 pp. Plus Attachment C.
`.: 3 Cenziper, D., 1999, "North Carolina School Bond Issue Baeked,° ne Charlotte Observer. Charlotte, NC.
4 Charlotte-Mecklenburg Planning Commission, 1990, General Develoornent Policies - District Plan. 51pp.
P
2
E
South Weal High School - Section 404 Individual Permit Application April 28, 2000
LAW Project No. 30100-9-4305
Engineers' (USACE) certified wetland boundary survey, dated January 19, 1999. LAW's review
of this survey and the existing site conditions determined that the delineation and survey of waters
' of the U.S., centrally located on site, required revisions. Subsequently, the wetland area situated
M., downstream of the central non jurisdictional pond was redelineated in the field by LAW on April
20, 1999, using the Routine On-Site Determination Method as described in the 1987 "Corps of
Engineers Wetland Delineation Manual".5 LAW also completed a series of stream functional
assessments on the subject site utilizing the USACE's Intermittent Channel Evaluation Form. DS
Atlantic completed the survey of the refined boundaries of waters of the U.S. on July 20, 1999.
This revised wetland boundary survey was certified by the USACE on August 9, 1999
lM (Attachment C - Figure 3).
Existive Conditions
The principal surface water feature proximal to the project area is Sugar Creek. Sugar Creek,
located approximately 1,500 feet from the western boundary of the study area, flows south to its
confluence with Coffey Creek. Three unnamed, first-order tributaries of Sugar Creek (Streams A,
B, and C) flow west across the project site (Attachment C - Figure 4). Stream A is located on the
northwestem portion of the project and originates from an approximate 0.13-acre scrub-shrub
wetland (Wetland A). Wetland A is located approximately 100 feet west of an existing on-site
1.45-acre jurisdictional pond (Pond A). Stream A has three to four foot high banks, an average
channel bottom width of two to three feet, and a water depth of approximately one inch. Riparian
vegetation associated with this stream included, Russian olive (Eleagnus umbellata), sweetgum
(Liquidambar styraciua), flowering dogwood (Cornus florida), red maple (Ater rubrum), and
black ch Prunus serolina
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Stream B is centrally located on the subject property and originates from an approximate 0.25 acre
wooded wetland (Wetland B). Stream B has four to five foot high banks, an average bottom
channel width of two to three feet, and a water depth of approximately one inch. Pond B, a non-
jurisdictional open water pond encompassing approximately 0.36 acre, is centrally located on the
subject site and situated an estimated 50 feet east of Stream B. Stream C originates from an
approximate 1.11-acre jurisdictional pond (Pond C) that is located on the southem portion of the
subject property. Riparian vegetation associated with Stream C includes, tulip poplar
(Liriodendron tulipyiera), willow oak (Quercus phellos), flowering dogwood, red maple, and
ironwood (Carpinus carolinkma). Stream B joins Stream C approximately 1,200 feet downstream
from its origin. Stream C has one to two foot high banks, an average channel bottom width of two
to three feet, and a water depth of approximately one inch. It appears that Ponds A, B, and C may
have originally been constructed for agricultural use. All totaled, approximately 2.56 acres of
jurisdictional open water (Ponds A and C), 0.36 acre of non jurisdictional open water (Pond B),
0.38 acre of wetlands, and 3,5001f of perennial stream occur on the subject property.
Alternatives Analysis
Tha site poses a number of development challenges, including several small drainage features that
dissect the site, and rather substantial topographic relief along the eastern and southern half of the
site (Attachment C - Figure 3). Largely due to these site constraints, impacts to the small,
s Envirormtental Laboratory, 1987, Corns of Ens inem Wetlands Delineation Manual. Technical Report Y-87-1, U.S. Army Corps of
Engineers Waterways Expe intent station, Vicbburg, M.
3
South West Sigh School - Section 404 Individual Permit Application April 28, 2000
LAW Project Na 30100-9-4305
unnamed tributaries on the subject site are unavoidable. The original site plan (dated January
1999) for the proposed South West High School sited the football and track stadium on the
westernmost stream channel (Stream A). In accordance with the wetland boundary survey
prepared by others, this alternative would have resulted in impacts to over 9001f of Stream A and
0.13 acre of Wetland A. In an effort to minimize impacts to waters of the U.S., and as
recommended by LAW, Little & Associates Architects (LAA) revised the design plan to locate the
football/track complex to the area that included the shortest drainage feature (Stream B).
These alternatives were evaluated by LAA, in conjunction with'CMS-Bovis, to determine which
alternative site plan would result in the least amount of environmental impact, while best
achieving a functionally efficient and safe high school campus. The issue of student safety was 'a
concern with placing fields a considerable distance from the main high school building. The
01 current recommended site plan places the athletic fields closer to the school, thereby improving
overate '
operations and student saf
ety, while decreasing the amount of stream impact. Another
" important design goal of LAA and CMS-Bovis, achieved by the current site plan, was to share
concessions and infrastructure between multiple fields (i.e., football/track stadium with adjacent
baseball fields).
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The no-build alternative was not considered because of the urgent need to alleviate over-crowded
classrooms in this area of Mecklenburg County.
Unavoidable Impacts to Jurisdictional Waters of the U.S.
Charlotte=Mecklenburg Schools (CMS) has set a date of August 2001 for completion of the South
West Nigh School. in order to achieve 'this critical classroom opening and athletic calendar
schedule, completion of the proposed high school will occur in two phases (Phases I and II)
(Figure 4). Phase I construction involves the main campus elements, while Phase II includes the
football/track stadium. Construction of Phase I of this project began in August 1999.
Phase I construction of the proposed South West High School involves the construction of the
main high school building, parking areas, roadways, all athletic fields except the football and track
stadium, and 2,085 if of eight-inch sewer. Construction associated with Phase I will impact
approximately 0.28 acre of wetlands and 96 If of stream. A practice field and associated access
road resulted in impacts to approximately 0.03 acre of Wetland A. Phase I impacts also include 96
If of Stream B and 0.25 acre of Wetland B. The proposed eight-inch sewer will result in one
crossing of Stream C (Attachment C - Figure 4) involving approximately 0.004 acre of stream bed
impact. LAW personnel prepared and submitted the necessary documentation for a NWP No. 26
pre-construction notification (PCN) - `Action Request' to USACE for Phase I of this project
(Action ID 199931098). The USACE's written authorization to proceed with Phase I activities
wad dated August 9, 1999. A copy has been attached for your convenience (Attachment D).
Construction of the footbalMrack stadium (Phase In will result in impacts to an additional 789
linear feet of Stream B with no additional impacts to vegetated wetlands. Approximately 95,000
cubic yards or of suitable soils will be discharged for this purpose. Subsequently, Phase II
construction will begin upon the issuance of the requisite Section 404 Individual Permit and
Section 401 Water Quality Certification from the USACE and NC Division of Water Quality
(DWQ), respectively. Phase II impacts will be addressed cumulatively with the above-described
Phase I impacts in this permit application.
4
South West High School - Section 401 Individual Permit Application April 28, 2000
l LAW Project No. 30100-9-4305
All totaled, Phase I and Phase II construction will result in unavoidable impacts to 0.28 acre of
wetlands and 8851f of stream bed.
F" Minimization of Impacts to Jurisdictional Waters of the U.S.
r+
M= Strategies to minimize impacts to jurisdictional waters of the U.S., associated with Phase I and
future Phase II include, 1) installing a silt fence and temporary diversion ditches around areas of
construction; 2) steepening fill slopes associated with buildings to minimize disturbance/
construction limits; 3) redesigning the site plan to move the future proposed football and track
stadium to the area of the site with the lowest grade conditions.
As previously described, the issue of student safety was a concern with placing fields a
r„y considerable distance from the main high school building. The current recommended site plan
places the athletic fields closer to the school, thereby improving overall operations and student
4• J
safety, while decreasing the amount of stream impact. Another important design goal of LAA and
CMS-Bovis, achieved by the current site plan, was to share concessions and infrastructure between
multiple fields (i.e., football/track stadium with adjacent baseball fields).
Potential impacts to jurisdictional waters of the U.S. associated with sedimentation and erosion will
be minimized through the implementation and maintenance of a State-approved erosion and
sedimentation control plan. The goal of this plan will be to minimize erosion and retain sediments, to
the maximum extent possible, within the construction area. A stormwater management plan
(SWMP) has also been developed for the future high school. Details of the SWMP are presented
below.
` Compensatory Mitigation
LAW personnel performed a field reconnaissance to evaluate potential on-site and in-kind
mitigation opportunities. The subject property has been relatively undisturbed since the 1970s
Ell when the land was used for agricultural purposes. At present, predominately wooded on-site
drainage systems have been buffered from surrounding urban development. Stream channels
appeared stable with little evidence of bank erosion, undercutting, etc. These stable streams
provide limited on-site preservation opportunities but cumulatively do not provide sufficient
mitigation to meet minimun regulatory-mandated requirements. Subsequently, CMS has proposed
off-site compensatory mitigation to offset proposed impacts to jurisdictional waters of the U.S.
a
The Little Sugar Creek Upper Basin Environmental Restoration Project - Phase II Belmont
Avenue Regional Water Quality Basin (Belmont Project) has been identified as a restoration
project that involves a suitable mitigation opportunity. The Belmont Project is located in the
Sugar Creek watershed of the Catawba River Basin. Specifically, the site is located along Little
Sugar Creek upstream (north) of the CSX railroad crossing on the north side of Interstate-277, just
north of downtown Charlotte. The project extends along the west bank of Little Sugar Creek
approximately 2,500 feet to the 17th Street culvert.
r The Sugar Creek watershed has been identified by NCDENR/DWQ as a priority sub-basin in the
Basinwide Wetlands and Riparian Restoration Plan for the Catawba River Basin. Mecklenburg
County Stormwater Services (MSWS) is currently seeking funding for this project and will assist
? _ 5
South West Wgh School - Section 404 Individual Perndt Applieadon April 28, 2000
LAW Project Na 30100-9-4305
CMS in meeting the goals and objectives under the requirements of the DWQ for compensatory
mitigation.6
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Currently, the Belmont Project is in the conceptual design phase and a detailed plan is not yet
available to provide more specific information about the exact linear footage of available stream
restoration.' 'T'he current conceptual plan includes meandering diversion channels and introduced
meanders intermixed with constructed wetland forebays, infiltration meadows, and offline wetland
areas. CMS will work closely with MSWS as the plans are developed for this project. CMS
anticipates two available options. The first option would be to contribute to the MSWS Belmont
Project by funding the restoration of 885 linear feet of perennial stream. The second option would
be to contribute up to $125 per linear foot of impact toward implementation/consti uction of
stormwater best management practices (BMPs) or some combination of both option 1 and option
2. For example, in the event only 800 linear feet of stream will be restored, then compensation for
the remaining 85 linear feet of impact will be in the form of a $10,625 contribution toward the
implementation/construction of a stormwater BMP, such as a constructed wetland forbay. In the
event that final design and implementation of this project is delayed beyond fall 2000, CMS will
work with MSWS to identify a more suitable project. The identification and corresponding
schedule associated with another suitable project will be coordinated with the USACE and DWQ.
Stormwater Mannement Plan
A Stormwater Management Plan (SWMP) for the project was developed by Little & Associates
Architects, Inc. As designed, on-site stormwater will be conveyed to two wet detention ponds
designated BMP Pond #I and #2 (Attachment C Figure 4; Attachment E - Drawings 1 thru 7).
These wet ponds were designed in accordance with NCDENR DWQ's Stormwater Best
Management Practices Manual (NCDENR DWQ, November 1995). The new ponds will treat
runoff from the developed project area In accordance with the DWQ-BMP manual, the design
specifications for wet detention ponds are expected to meet the pollutant removal standard of 85%
removal of total suspended solids (TSS). BMP Pond #1 (0.75 acre) is located next to the two
proposed on-site softball and baseball fields and will receive runoff from approximately 16.16
acres (8.34 acres of impervious and 7.82 pervious surface). BUT Pond #2 (0.62 acre) will be
located south of the proposed bus parking lot and will receive runoff from approximately 21.36
acres (10.19 acres of impervious and 11.17 pervious surface). The small amount of stormwater
runoff eminating from the impervious area of the football stadium complex could not be routed
into these ponds. As an alternative, the stormwater will be routed through the drainage system and
then directed to a "level spreader" located near Stream B. This approximately 900-foot long,
vegetated level spreader has been designed to both reduce water velocities and direct the collected
stormwater to overland sheet flow (Attachment E - Drawings 8 and 9). The stormwater will exit
the level spreader, then sheet flow across an existing forested/grassed area approximately 160 feet
wide prior to entering undisturbed portions of Stream B. The stormwater detention plan was
approved by the City of Charlotte in August 1999 and is designed for a two-year and ten-year
event. The SWMP will also be submitted to DWQ for review and approval as part of the Section
401 Water Quality Certification application. Implementation and maintenance of the DWQ-
certified SWMP will minimize the project's potential impact to water quality/quantity.
6 Burg, A., 2000, Pmeonal Communication, Mecklenburg County Storm Water Services, Charlotte, NC.
t 6
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F
0
P
r.

South West High School-Section 404 Individual Permit Application
LAW Project No. 30100-9-4305
April 28, 2000
Protected Saecies
On August 26, 1999, LAW's staff environmental scientists Gregg Antemann and Mary Murray
surveyed the property for the presence of the Federally-listed endangered Schweinitz's sunflower
(Helianthus schweintzii) and smooth coneflower (Echiniacea laevigata). A report prepared by
LAW summarizing the results of this protected species survey is included as Attachment F. In
addition, a database search by the North Carolina Natural Heritage Program did not reveal any
records of known rare species, high quality natural communities, or significant Natural Heritage
Areas occurringwithin a one-mile radius of the subject property (Attachment G). No impacts to
federally- or state-protected species are expected as a result of this project.
Cultural Resources
Potential cultural resources issues have also been investigated. Loretta Lautzenheiser, President
and Principal Archaeologist for Coastal Carolina Research, Inc. (CCR), of Tarboro, NC,
completed a cultural resources literature and records review of the proposed project area in August
1999, prior to the initiation of Phase I construction. This report concluded that, "no archaeological
sites or cultural resources were recorded within the boundaries of the proposed Nations Ford Road
Campus project area".7 An archaeological field reconnaissance survey was subsequently
performed in the fall of 1999. This survey targeted those portions of the site beyond the Phase I
area, largely focusing on the proposed Section 404 permit area.8 During this survey, an
archaeological site was recorded (31MK937I. The site appeared to be the remains of a liquor still
that was determined to be less than 50 years old. The archaeological survey report for the
proposed South West High School project concluded that, "No other archaeological resources
were recorded and no additional cultural resource investigations are. recommended." This report,
entitled "Archaeological Survey on the Proposed South West High School in Mecklenburg
County, North Carolina" was forwarded to the State Historic Preservation Office (SHPO) on
December 21, 1999. This report has been made part of SHPO's permanent files (Attachment H).
a
E

Fill
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Recent interim policy promulgated by North Carolina Department of Environment and Natural
Resources, Division of Water Quality states that publicly-funded projects that involve a state
action, namely, a Section 401 Water Quality Certification, and that impact greater than or equal to
500 if of a perennial stream channel or one acre of freshwater wetlands, are subject to a review
under the State Environmental Policy Act (SEPA). Projects exceeding these impact thresholds
require the preparation of an Environmental Assessment (EA) in accordance with SEPA
guidelines. LAW has been retained by Charlotte-Mecklenburg Schools and Bovis Construction
Corporation (CMS-Bovis) to provide these environmental. services for the project. The EA has
been prepared pursuant to the requirements of the Act. The draft EA was forwarded to DWQ's
Ms. Gloria Putnam, SEPA Coordinator, on March 16, 2000 for a completeness review. A
response from DWQ was received on April 18, 2000. The final revised EA will be forwarded to
the State Clearinghouse simultaneously with this application.

7 Coastal Carolina Research, Inc., 1999, Cultural Resources Overview Report. Tarboro, NC.
8 Coastal Carolina Research, Inc., 1999, Archaeological Survey Proposed South West High School Mecklenburg County Report,
Tarboro, NC.
7

South West High School - Seddon 404IndivJdual Permit AppUcatlon April 28, 2000
LAW Nged No. 30100-9-4305
The review of this application is an essential element in maintaining current construction
schedules and ultimately in achieving the critical August 2001 classroom opening and athletic
calendar schedule. Your expeditious attention to this matter will be greatly appreciated. Please do
not hesitate to call Mike Iagnocco at [phone] if you have any questions.
Sincerely,
LAW ENGINEERING AND, ENVIRONMENTAL SERVICks"me..
*Lisa
Michael A. I occo
Staff Environmental Scientist Senior Environmental Scientist
BY With Permission
Allen W. Conger, P.W.S.
Principal By With Permission
Environmental Scientist
a
Attachments: Attachment A - ENG Form 4345
Attachment B - Agent Authorization Form
Attachment C - Figures 1- 4
Attachment D - USACE Authorization Form
Attachment E - Stormwater Management Plan
Attachment F -Natural Heritage Program Correspondence
Attachment G -Protected Species Survey
Attachment H - SHPO Correspondence
n
cc: John Dorney, DWQ
David Kubicki, Project Manager, CMS-Bovis
Thomas Balke, AJA, Senior Associate, LAA
I
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l 8
APPLICATION FOR DEPARTMI'M OF THE ARMY PERMIT OMB APPROVAL NO. 0710-003
1311 CPR 3201 Eupine October 1996
Public reporting; burden for this cWectgn of information Is esdmited to over 5 hours per reopotss, Nroludinp the time for roviewlnhg Insouctions,
searcftirtg e:tistinhg elate achtrcea, 9attsrfrhg and rsintktirg the data needed, rend completing and roviewing the collection of InIa cation. Send
comments regarding this burden estimate or any other aspect of this collection of Information, kraludkV suggestions for redttchM this burden, to
?.;Departn at of Defense, Washington Headquarters Service Directorate of Infornstion0perodons and Report, 1215 Jefferson Davis Mghway, State
1204, Arlington. VA 222024302; and to,the Office of Management and Budget, Paperwork Reduction Project (07104)0031, Washington, DC
20803. Planes DO NO RETURN your form to either of those addresses. Completed applications must be wAmItted to the District Engineer having
r jurisdiction over the location of the proposed activity.
PRIVACY ACT STATEMENT
Authority: 33 USC 401, Seodon 10; 1413, Section 404. Principal Purpose: These laws require permits authorizing o"vitles in, or of iectbg,
P' r navigable watera'af the United gates; the discharge of dredged or M material Into waterss of the United States, and is Varaportatim of dredged
materW for the purpose of dunnping it into ocean waters. Routine Uses: Information provided on this fpm will be used In evYuating tho.appllcation
for a permit. Disclosure: Disclosure of requested Information W vokw4w. N ktformadon is nut'providid, however, the psrgit appleadon 4annot be
processed nor can a permit be Issued.
One sit of oddlnsl drew" or good nprodMei wales which show the location and character of ji. proposed activ t 'must be attached to this
spplcaa*m (gas sample dnwk*s and Instructions) and be submitted to the DIWat Engineer having Xxisdle tlon over the location of the proposed
activity. An application then Is not completed in full will be rehtrned.
1. APPLICATION NO. 2. FIELD OFFICE CODE 3. DATE RECEIVED 4. DATE APPLICATION COMPLETE
gym MLLED BY APPLICANT)
5. APPLICANT'S NAME Mecklenburg Schools Building S. AUTHORIZED AGENT'S NAME AND TITLE #wsg hwtmwft4
Services. POC David J. Kubicki
Michael A. Ia nocco Sr. Environmental Scientis
8. APPLICANT'S ADDRESS 9. AGENT'S ADDRESS LAW Engineering and Environment
3301 Stafford Drive Services, Inc.
Charlotte, North Carolina 28208 2801 Yorkmont Road, Suite 100
I?:i nl.sYlntrn Werth e!n1^14"M 9R9na
M a. Residence
a. Residence
b. Business 704-343-5310 b. Business 704-357-8600
11. STATEMENT OF AUTHORIZATION
I hereby authorize, A Ia nocco to act in my behalf ss'my spirt in the processing of this appl detion and to
-- furnish, upon request, suppl al Information in support of this permit application. See Attachment B
A
k°
A _
SIGNATURE
12. PROJECT NAP
OR TITLE I... xiwuoson.)
DATE
OR ACTIVITY
r1lSo"uth,
West High School
13. NAME OF WATERBODY, IF KNOWN Avwa w 14. PROJECT STREET ADDRESS a pkaW
"'Unnamed tributaries to Sugar Creek and adjacent
wetlands
7026 Nations Ford Road
t.
15. LOCATION OF PROJECT Charlotte, North Carolina 28217
Mecklenburg North Carolina
COUNTY STATE
18. OTHER LOCATION DESCRIFTIONS,.IF KNOWN, h..hv~rwV
See Figure 1 and . 2
17. DIRECTIONS TO THE SITE From Interstate-77 take, Exit 4 (Nations - Ford Road) and travel north on
Nations Ford Road for approximately 0.5 mile. The site is located on the'left between Choyce
'Avenue and Echodale Drive.
n?
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11 a F,

.?+ 18. Nature of Activity. (onw*don owqkr.1"auAr &N a rural
?a
See Supplemental- Information
Approximately 95,000 cubic yards of suitable soils
22. Surface Area M Acres of Wetlands or other Waters Filiid r...re.u *" All totaled, Phase I and Phase II constructif
,. will result in unavoidable impacts to 0.28 acres of wetlands and.885.,1f_•of stream bed.
23. Is Any Portion_ of the Work Akeady Complatet Yes ..?? No IF YES, DESCRIBE THE COMPLETED WORK
$ee Supplemental`I.formation
`' Owned, L'ess"sss, Etc.,-Whose Property Adjoins" the WaterbodY (if more than can be entered here,
`' 24 Addruses of AdJolning Property
pleese Aa- ifi a supown4 ital hell.
R'7 See attached table for mailing addressess of adjoining property owners.
28. at of Other CehiHd+done.or Approvals/Danisls Received from other Federal, State or Local Agencies for Work ti:icrib.d'in This ApppaaLlori.
AGENCY TYPE APPROVAL' IDENTIFICATION NUMBER DATE APPLIED DATE APPROVED. DATE DENIED
i DEFR? Erosioa°"`coi E ol% Meck1e-1 W'! 7%2/99 7/14/99
grading
"??cton "Eequeet T9?33Y1098 n..*8/9/99r
'Would Include but is not ed to zoning, bu WkV and flood plain permits -18 A?l n 6' far a permit or permits to authorize the work dastnMd in this application. I caNiy
,o that the information in this
'6 Ie'
application ls coo late and accurate. I further certify that I possess the to undertake the work described herein or am soling as the
duly autho agent of the applicant. 2e) 80
SIGNATURE OR APPLICANT DATE SIGNATURE CW DATE
The application must be signed by tM parson who desires to undertake this proposed activity (applicant) or it may be signed by a duly
?,authoriisd agent if the staff rMern M block 11 has been tinted out and signed.
18 U.S.C. Section 100,11 provides that: Whoewr, In any manner within the Jurisdiction of any department or agency of the United States
r ?* knowingly and willfully falsifies, conceals. or coven up any trick, scheme, or disguises • material factor makes any false, fictitious or
statemerr`ts oTj WWs*ntstions or makes or uses any false writing or document knowing same to contain any false, fictitious or
frsuduknt sritscnentp orentry, shall be fined not mgrs than $10,000 or Imprisoned not more than five years or both.
., ,. - -.. , ...: ?ua:oRO:roa4?aso•asrozois
South West high School -Section 404 A&Wdual PerndtApplicution Apri128, 2000
LAWProject Na 30100.9-4305
f Supplemental Information - ENG Form 4345
Block 18. Nature of Activity
t""! Charlotte-Mecklenburg Schools (CMS) has set a date of August 2001 for completion of the
's South West High School. In order to achieve this critical classroom opening and athletic
calendar schedule, completion of the proposed high school will occur in two phases (Phases I
and H) (Figure 4). Phase I construction involves the main campus elements, while Phase II
' includes the football/track stadium. Construction of Phase I of this project began in August
1999.

Phase I construction of the proposed South West High School involves the construction of the
main high school building, parking areas, roadways, all athletic fields except the football and
track stadium, and 2,085 If of eight-inch sewer. Construction associated with Phase I will impact
f, approximately 0.28 acre of wetlands and 96 If of stream. A practice field and associated access
road resulted in impacts to approximately 0.03 acre of Wetland A. Phase I impacts also include
96 If of Stream B and 0.25 acre of Wetland B. The.proposed eight-inch sewer will result in one
crossing of Stream C (Attachment C - Figure 4) involving approximately 0.004 acre of stream
bed impact. LAW personnel prepared and submitted the necessary documentation for a NWP
C"' No. 26 pre-construction notification (PCN) - `Action Request' to USACE for Phase I of this
" project (Action ID 199931098). The USACE's written authorization to proceed with Phase I
activities wad dated August 9, 1999. A copy has been attached for your convenience
r (Attachment D).
Construction of the football/track stadium (Phase II) will result in impacts to an additional 789
linear feet of Stream B with no additional impacts to vegetated wetlands. Approximately 95,000
cubic yards or of suitable soils will be discharged for this purpose. Subsequently, Phase II
construction will begin upon the issuance of the requisite Section 404 Individual Permit and
Section 401 Water. Quality Certification from the USACE and NC Division of Water Quality
(DWQ), respectively. Phase II impacts will be addressed cumulatively with the above-described
Phase I impacts in this permit application.
All totaled, Phase I and Phase II construction will result in unavoidable impacts to 0.28 acre of
wetlands and 885 If of stream bed.

Block 19. Project Purpose
The 2005 Generalized' Land Plan for the Southwest District of Mecklenburg County has
projected population growth from 36,563 people in 1985 to 47,048 in 2005.1 Populations in the
is County for ages 5-14 and 15-24 are predicted to increase from 93,608 and 83,888, respectively,
' in 1999 to 112,061 and 108,917, respectively, in 2015. This trend is evident statewide with an
estimated 25,000 new students attending public school every year.2
t Charlotte-Mecklenburg Planning Conmission,1993, Southwest District Plan. 81pp. Plus Attachment C.
2 Cenziper, D., 1999, "North Carolina School Bond Issue Backed," The Charlotte Observer. Charlotte, NC.

w..
South West High Sdwol - Secdon 404In&W&af PermitAppllcadon Aprll28, 2000
n LAW Project Na 30100-964305
L Currently, the shortage of schools and classroom space has resulted in overcrowded classrooms
and the regular use of approximately 4,800 portable classrooms by over 100,000 students in the
state. To alleviate current overcrowded classroom conditions and to accommodate the future
increase in student population, North Carolina voters approved a $1.8 billion bond referendum to
refurbish aging public schools and to build new ones. As a result of revenues from this bond, the
Charlotte-Mecklenburg School System is in the process of constructing ten new schools: three
high schools (including the subject South West High School), three middle schools, and four
elementary schools.
Block 20. Reason(s) for Discharge

Optimal sites for future schools are becoming increasingly limited due to the high rate of
development in Mecklenburg County. Advanced planning and land banking for new schools is a
current priority of the Charlotte-Mecklenburg School System .3 The desired size for the
development of new, standard-sized high schools, according to State regulations, is approximately
62 acres. A typical site design plan for the conduction of a new State high school includes the
following essential structural elements: classrooms (including, a library, cafeteria, computer rooms,
.administrative/guidance offices, gymnasium, auditorium, and medical facilities), athletic fields (i.e.,
football, track, baseball, and soccer), and parking areas.
¦"
Initially, 14 potential locations for the proposed South West High School were considered. Of
^ these 14, seven were eliminated because they were not large enough (< 62 acres) to accommodate a
standard-sized high school campus. The remaining seven sites were evaluated further, using
several criteria, including, suitable shape/configuration of property, acceptable separation distance
from the airport (noise issues), availability of on-site sewer and water, location (in relationship to
other schools), reasonable cost of land, and lack of significant environmental issues. The Nations
Ford Road site was the only site that met all of the aforementioned site selection criteria.
The site poses a number of development challenges, including several small drainage features
that dissect the site, and rather substantial topographic relief along the' eastern and southern half
of the site (Attachment C - Figure 3). Largely due to these site constraints, impacts to the small,
unnamed tributaries on the subject site are unavoidable. The original site plan (dated January
Er! 1999) for the proposed South West High School sited the football and track stadium on the
westernmost stream channel (Stream A). In accordance with the wetland boundary survey
prepared by others, this alternative would have resulted in impacts to over 900 If of Stream A
a and 0.13 acre of Wetland A. In an effort to minimize impacts to waters of the U.S., and as
recommended by LAW, Little & Associates Architects (LAA) revised the design plan to locate
the footbalUtrack complex to the area that included the shortest drainage feature (Stream B).

These alternatives were evaluated by LAA, in conjunction with CMS-Bovis, to determine which
C alternative site plan would result in the least amount of environmental impact, while best
y ; achieving a functionally efficient and safe high school campus. The issue of student safety was a
concern with placing fields a considerable distance from the main high school building. The
r current recommended site plan places the athletic fields closer to the school, thereby improving
a Charlotte-Mecklenburg Planning Commission, 1990, Ciensral Doveloemont Policies - District Plan Slpp.

n
Soush Was High School -Section 404Individual Permif Applicaflon Aprll28, 2000
LAWProjed No. 30100.9-4305
overall operations and student safety, while decreasing the amount of stream impact. Another
important design goal of LAA and CMS-Bovis, achieved by the current site plan, was to share
F concessions and infrastructure between multiple fields (i.e., football/track stadium with adjacent
baseball fields).
E"
Block 23. Is Any Portion of the Work Already Complete?
} Yes. LAW personnel prepared and submitted the necessary documentation for a NWP No. 26
pre-construction notification (PCN) - `Action Request' to the U.S. Army Corps of Engineers
(USACE) for Phase I of this project (Action ID 199931098). Phase I construction was initiated
in August 1999. Phase I resulted in impacts of 0.28 acre of wetlands and 961f of stream. Phase
k II construction had not been started and is pending the issuance of the requisite Section 404
Individual Permit and Section 401 Water Quality Certification from the USACE and NC
Division of.Water Quality (DWQ), respectively.
r

AGENT CER MCA'nON OF AIJTHORIZA-nON
• nP$ CharlotL?Mocklw,burg 3choota, hereby
o.rrify that I i+uro sutiloriced KChael A. Iagtiocoo oftaw Ecginearing and Environmw" Sovicsy, Inc.
to act on my behalfand mkc ab aotioaa necessary in tbv procetsing, issmas, and acceptence of the
Sfttion 404 "Mit and any and all s Maud gad spWal Coaditions attached,
.We hereby certify the above inform4ioa sdbmiued 6 cb;s application is true and accurate tb the best
i!
of our knowlad
Appi 3 sigaaturC As?eut's sign
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Date
Dare
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U.S. ARMY CORPS OF ENGINEERS
WILMINGTON DISTRICT
Action Id. 199931098 County Mecklenburg
GENERAL PERMIT (REGIONAL AND NATIONWIDE) VERIFICATION
Property owner: Charlotte-Mecklenburg School System
Address: 701 E. 2nd Street
Charlotte, NC 28208
Telephone No.:
Size and Location of project (water body, road name/number, town, etc.):
R.,s South West High School site on approx. 80 acre tract between Nations Ford Road and Sugar
Creek.
Description of Activity:
Fill approx. 0.28 acre of headwater wetlands and approx. 96 LF of unnamed tributary to Sugar
Creek for, the purpose of accomodating construction activity for the above referenced school
project.
t'. Y Applicable Law: X_Section 404 (Clean Water Act, 33 U.S.C. 1344).
(check all that apply) Section 10 (River and Harbor Act of 1899). -
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Authorization: Regional General Permit Number.
26 Nationwide Permit Number.
Your work is authorized by this Regional General (RGP) or Nationwide Permit (NWP) provided it is accomplished in
strict accordance with the attached conditions and your submitted plans. For any activity within the twenty
coastal counties, before beginning work you must contact the N. C. Division of Coastal Management, telephone
[phone].
Please read and carefully comply with the attached conditions of the RGP or NWP. Any violation of the conditions
of the RGP or the NWP referenced above may subject the permittee to a stop work order, a restoration order, and/or
appropriate legal action.
This Department of the Army RGP or NWP verification does not relieve the permittee of the responsibility to obtain
any other required Federal, State, or local approvals/permits. The permittee may need to contact appropriate State
and local agencies before beginning work.
1f there are any questions regarding this authorization or any of the conditions of the General Permit or
Nationwide Permit, please contact the Corps Regulatory Official specified below.
Date August 9. 1999
Corps Regulatory Official Steve Chapin_ Telephone No. [phone]
•. Expiration Date of Verification December 30. 1999
?. cc: Law Engineering & Environmental
r CESAW Form 591
Revtwd July 1995

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NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
DIvISION OF PARKS AND RECREATION
September 14, 1999
Ms. Mary C. Murray
LAW Engineering and Environmental Services
2801 Yorkmont Road
Charlotte,,NC 28205
SUBJECT: Rare Species, High Quality Natural Communities, and
Significant Natural Heritage Areas at the Proposed CMS-
Nations Ford Development Project Site, Mecklenburg
County, North Carolina
Dear Ms. Murray:
The NC Natural Heritage Program (NCNHP) does not have a record of rare species,
high quality natural communities, state park and recreation areas, or Significant
Natural Heritage Areas (SNHAs) at or within a 1.0 mile radius of the proposed CMS-
Nations Ford Site development project site between Echodale Drive, Sugar Creek,
and Choice Avenue in Mecklenburg County, North Carolina.
Enclosed is a list of rare species known to exist in Mecklenburg County. If habitat for
any of these species exists at the site, they may be present there. Consultant acquired
knowledge of the existing habitat should determine if a survey is necessary.
John Finnegan, our GIS person, will be contacting you regarding your request for
lat/log coordinates of SNHAs for Mecklenburg County. Should you need to contact
him, his number is 919-715-8702. I am enclosing a list of these priority areas with
this letter.
Please do not hesitate to contact me at the address below or call me at (919) 715-
8703 if you have any questions or need further information.
Sincerely,
Susan Reece Giles
Information Specialist
Natural Heritage Program
Enclosure
a ,
1615 MAIL SERVICC CENTER, RALEIGH, NORTH CAROLINA 27699-1616 /
. PHONE 919-7Ja-4182 FAX [phone]
AN EPUAL OPPORTUNITY / AFFIRMATIVE ACTION EMPLOYER - 509 RECYCLED1109 POST-CON6UMER PAPER
"'GLOBAL AND STATE RANKS
These ranks are determined by The Nature Conservancy's system of measuring rarity and threat status. "Global" refers to
worldwide ranks and "Siate" to statewide ranks.
f STATE RANK DEFINITIONS
`_ , S1 Critically imperiled in North Carolina because of extreme rarity or otherwise very' vulnerable to extirpation in the state.
S2 Imperiled in North Carolina because of rarity or otherwise vulnerable to extirpation in the state.
rm S3 Rare or uncommon in North Carolina.
a S4 Apparently secure in North Carolina, with many occurrences.
S5 Demonstrably secure in North Carolina and essentially ineradicable under present conditions.
SA Accidental or casual; one to several records for North Carolina, but the state is outside the normal range of the species.
k SH Of historical occurrence in North Carolina, perhaps not having been verified in the past 25 years, and suspected to be still
extant in the state.
SR Reported from North Carolina, but without persuasive documentation for either accepting or rejecting the report.
r SX Believed to be extirpated from North Carolina.
SU Possibly in peril in North Carolina, but status uncertain; more information is needed.
S? Unranked, or rank uncertain.
r S B Rank of breeding population in the state. Used for migratory species only.
S_N Rank of non-breeding population in the states Used for migratory species only.
` SZ_ Population is not of significant conservation concern; applies to transitory, migratory species.
GLOBAL RANK DEFINITIONS
Gl Critically imperiled globally because of extreme rarity or otherwise very vulnerable to extinction throughout its range.
G2 Imperiled globally because of rarity or otherwise vulnerable to extinction throughout its range.
G3 Either very rare and local throughout its range, or found locally in a restricted area.
CA Apparently secure although it may be quite rare in arts of its range (especially at the periphery).
globally, gh i. ._.. P G5 Demonstrably secure globally, although it may be quite rare in parts of its ring e. (especially at the periphery).
GH Of historical occurrence throughout its range.
E GX Believed to be extinct throughout its range.
GU Possibly in peril, but status uncertain; more information is needed.
G? Unranked, or rank uncertain.
G_Q Of questionable taxonomic status.
G -T- Status of subspecies or variety; the G rank refers to the species as a whole.
j ADDITIONAL DEFINITIONS.
Elements within a county are subdivided into "Current", "Historic", or "Obscure" records.
Current record: the element was last observed in the county at most 20 years ago.
Historic record: the element was last observed in the county more than 20 years ago.
Obscure record: the date the element was last observed in the county is uncertain.
C9 NOTE: Scientific and common names listed in parentheses are synonyms listed in US Fish and Wildlife Service, 1992, Endangered
s and Tlireatened:Species of the Southeastern United State's. (The Red Book).

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F.
NC NATURAL HERITAGE PROGRAM, DIVISION OF PARKS AND RECREATION, DENR July 1999
NC NATURAL HERITAGE PROGRAM COUNTY STATUS LIST COVER SHEET
The county status list of the NC Natural Heritage Program is a listing of the elemehts of natural diversity (rare plant and animal
species, exemplary natural communities, and special animal habitats) known to occur in all North Carolina counties. The
information on which this list is based comes from a variety of sources, including field surveys, museums, herbaria, scientific
literature, and personal communications. This list is dynamic, with new records continually being added and old records being
revised as new information is received. As a result, the enclosed list cannot be considered a definitive record of natural heritage
elements present in a given county and should not be used as a substitute for field surveys.
When this information is used in any document, we request that the date this list was compiled be given and that the NC Natural
Heritage Program be credited.
STATE STATUS
CODE STATUS CODE STATUS •
E Endangered SR Significantly Rare
T Threatened EX Extirpated
SC Special Concern D De-listed
C Candidate P_ Proposed (E. T, SC, EX or D)
Plant statuses are determined by the Plant Conservation Program (NC Department of Agriculture) and the Natural Heritage
Program (NC Department of Environment and Natural Resources). E, T, and SC species are protected by state law (Plant
Protection and Conservation Act, 1979). C and SR designations indicate rarity and the need for population monitoring and
conservation action. Note that some plants have a double status (e.g., E-SC, indicates that while the plant is endangered, it is
collected or sold under regulation). See the Natural Heritage Program List of the Rare Plant Species of North Carolina for further
explanation of these statuses.
Animal statuses that indicate state protection (E, T, and SC) are published in Endangered Wildlife of North Carolina, March 16,
1992, Nongame and Endangered Wildlife Program (NC Department of Environment and Natural Resources). SR and EX statuses
are Natural Heritage Program designations. SR indicates rarity and the need for population monitoring and conservation action.
See the Natural Heritage Program List of the Rare Animal Species of North Carolina for further explanation of these statuses,
fZMA? STATUS
These statuses are designated by the US Fish and Wildlife Service. Federally listed Endangered and Threatened species are
protected under the provisions of the Endangered Species Act of 1973, as amended through the 100th Congress. Unless otherwise
noted, definitions are taken from the Federal Register, Vol. 56, No. 225, November 21, 1991 (50 CFR Part 17).
CODE STATUS DEFINMON
LE Endangered A taxon "in danger of extinction throughout all of a significant portion of its range."
LT Threatened A taxon "likely to become an endangered species within the foreseeable future throughout all of a
significant portion of its range."
C Candidate A taxon under consideration for which there is sufficient information to support listing. This category was
formerly designated as a Candidate 1 (C1) species.
FSC Federal "Species of Concern" (also called "Species at Risk"). Formerly defined as a taxon under
consideration for which there is insufficient information to support listing; formerly designated as a
Candidate 2 (C2) species. Currently, the US Fish and Wildlife Service does not recognize this as an
official designation.
T(S/A) Threatened due to Similarity of Appearance. The Endangered Species Act authorizes the treatment of a
species (subspecies or population segment) as threatened even though it is not otherwise listed as threatened
if: (a) The species so closely resembles in appearance a threatened species that enforcement personnel
would have substantial difficulty in differentiating between the listed and unlisted species; (b) the effect of
this substantial difficulty is an additional threat to a threatened species; and (c) such treatment of an unlisted
species will substantially facilitate the enforcement and further the policy of the Act. The American
Alligator has this designation due to similarity of appearance to other rare crocodilians. The Bog Turtle
(southern population) has this designation due to similarity of appearance to Bog Turtles in the threatened
northern population.
PD Species has been proposed for de-listing.
C!
GLOBAL STATIC FED. STATE
SCIENTIFIC NAME COMMON NAME 3'!'ATUS STATUS RANK RANK
Mecklenburg-Current
Vertebrate Animal
r Carpiodes velifer Highfin Carpsucker Sc - S2 G4G5
r_. Etheostoma collis Carolina Darter SC - S3 G3
Haliaeetus leucocephalus Bald Eagle E (PT) LT S3B,S3N G4
Lanius ludovicianus ludovicianus Loggerhead Shrike SC - S3B,S3N G5T5

f .d Invertebrate Animal
".! Villosa delumbis Eastern Creekshell SR - 83 G4
Villosa vaughaniana Carolina Creekshell SC (PE) FSC S2 G2
Vascular Plant
_ Anemone caroliniana Prairie Anemone C - S1 G5
Aster georgianus Georgia Aster T FSC S2 G2G3
Aster mirabilis Piedmont Aster C S2 G2G3
Dodecatheon meadia var meadia Eastern Shooting Star SR - S2 G5T5
a Echinacea laevigata Smooth Coneflower E-SC LE S1 G2
Gnaphalium helleri var helleri Heller's Rabbit Tobacco SR - S2?
G4GST3?
"J Helianthus schweinitzii Schweinitz's Sunflower E LE S2 G2
Lotus helleri Carolina Birdfoot-trefoil C FSC S3 G3
Silphium.perfoliatum Northern Cup-plant SR - Sl G5
Silphium terebinthinaceum Prairie Dock C - S2 G4G5

;.; Natural Community
Basic Oak--Hickory Forest - - - S3 G4
Mesic Mixed Hardwood Forest _
S4
G5T5
P" (Piedmont Subtype) -
j:; Piedmont/Low Mountain Alluvial - - - S5 G5
ts; Forest
Upland Depression Swamp Forest - - - S2 G3
Xeric Hardpan Forest - - - S3 G3G4
Mecklenburg-Historic
Vertebrate Animal
Condylura cristata pop 1
Star-nosed Mole - C
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r Population
r Invertebrate Animal
Alasmidonta robusta Carolina Elktoe EX - SX GX
Lasmigona decorata Carolina Heelsplitter E LE S1 G1
Vascular Plant
Anemone berlandieri Southern Anemone C - Sl G4?
Baptisia albescens Thin-pod White Wild Indigo SR - S2 G4
Botrychium jenmanii Alabama Grape Fern SR - S1 G3G4
Cardamine dissecta Dissected Toothwort C - S2 G4?
Carex projecta Necklace Sedge C - S1 G5
Cirsium carolinianum Carolina Thistle C - S1 G5
Delphinium exaltatum Tall Larkspur E-SC FSC S1 G3
Desmodium sessilifolium Sessile Tick-trefoil C - SH G5
Hexalectris spicata Crested Coralroot SR - S2 G4?
Isoetes virginica Virginia Quillwort C FSC Sl G3
Rhus michauxii Michaux's Sumac E-SC LE S2 G2
Solidago rigida ssp glabrata Southeastern Bold Goldenrod SR - S2 G5T4
rr
Nonvasaular Plant
?..
Rhachithecium perpusillum
Budding Tortula
C
-
S1S2
G3?
Mecklenburg-Obscure
Vertebrate Animal
Cyprinella zanema pop 1 Santee Chub - Piedmont SR - S3 G3T3Q
n Population
NC NATURAL HERITAGE PROGRAM, DIVISION OF PARKS AND RECREATION, DENR July 1999
M
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Protected Species Survey
Proposed South West High. School
Charlotte, North Carolina
r Law Project No. 36100-04305
ri
A protected species survey was conducted on the 80-acre proposed South West High School site in
Charlotte, North Carolina by Law Engineering and Environmental Services, Inc. (LAW) to
determine the potential for the occurrence of animal and plant species listed as endangered or
threatened by current Federal or State regulations [Federal Endangered Species Act of 1973 (16
USC 1531-1543); the North Carolina Endangered Species Act, (N.C.G.S. Sect. 113 Article 25);
and the North Carolina Plant Protection and Conservation Act of 1979 (General Status
I0b'l66:202:.12=22)]. IThe assessment consisted of a literature and records search and pedestrian
survey performed by LAW's staff environmental scientists Gregg Antemann and Mary Murray on
August 26, 1999. Observed plants were identified to the lowest taxonomic unit level possible
and/or necessary to determine if the observed specimen was a protected species.
., The North Carolina Natural Heritage Program (NCNHP) provided existing data conceming the
i...; potential occurrence of threatened or endangered species within Mecklenburg County, North
Carolina (Attachment A). This database indicates that there are six federally and/or state
endangered species which may occur in Mecklenburg County, namely, smooth coneflower
(Echinacea laevigata), Schweinitz's sunflower (Helianthus schweinitzii), Carolina heelsplitter
(Lasmigona decorata), Michaux's sumac (Rhos michauxii), tall larkspur (Delphinium exaltatum)
and the bald eagle (Hallaeetus leucocephalus). Correspondence with NCNHP did not reveal any
records of known rare species, high quality natural communities, or significant Natural Heritage
Areas occurting within a one-mile radius of the subject property. Federally and/or state threatened
t* and endangered species that may occur within Mecklenburg County and their respective habitats
J are listed and described below:
Smooth coneflower (Echinacea laevigata)
This perennial plant generally occurs in basic to circumneutral soils of meadows and woodlands.
' The plant typically prefers upland oak-hickory or mixed oak-pine forests, old field habitat, and
roadsides.
-Schweinitz's sunflower (Helianthus schweinitzir)
This perennial plant generally occurs along clearings, roadsides, transmission line right of ways
(R/Ws), and infrequently mowed areas. The plant generally prefers shallow clayey to sandy-clay
foams weathered from metasedimentary rocks, often with large quantities of slaty rock fragments,
.. and/or gravel.
r
Carolina heelspllitter (Lasmigona decorata)
This mussel occupies cool, slow-moving, small- to medium-sized streams and rivers. The only
known population of this species within the Catawba River Basin occurs in Waxhaw Creek.
i.

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" Proposed South West High School AprU 28, 2000
LAW Project No. 30100-9-4305
F
F Michauz's sumac (Rhus michauxir)
This shrub grows in sandy or rocky open woods in association with basic soils. Once known from
three States, Georgia, South Carolina, and North Carolina, this plant now has viable populations
only in North Carolina. This plant is restricted to seven counties of North Carolina. It appears to
have been extirpated from Mecklenburg County.
Tall larkspur (Delphinium exaltatum)
This plant was listed as an obscure record and has not been documented in Mecklenburg County
within at least the last 50 years.
t,
Bald eagle (Haliaeetus leucocephalus) T
"This large bird of prey generally nests along lakes, rivers, and the coast where there is an
ample food supply nearby.
LAW's initial on-site field investigation conducted on August 26, 1999 to determine the presence
of suitable habitat for the aforementioned protected species, revealed that Schweinitz's sunflower
and smooth coneflower had the greatest probability of occurring on the subject property.
c' Occurrences of the Carolina heelspitter have not been documented in the portion of the Catawba
River Basin in which the subject property is locatedl. Michaux's sumac has been extirpated from
Mecklenburg County2.
r ,
EXISTING CONDITIONS
On August 26, 1999, L,AW's staff environmental scientists Gregg Antemann and Mary Murray
n surveyed the property for the presence of the Federally-listed endangered Schweinitz's sunflower and
.j smooth coneflower. To aid in the identification of Schweinitz's sunflower, a living specimen of this
plant was examined on April 26, 1999 from a nearby location.
HABITATS
The proposed South Nest High School site is largely wooded. 'The predominant natural vegetative
community located within the subject property can be described as a Dry Oak/Hickory Forest
(Schafale and Weakley, 1990). This habitat includes, water oak (Quercus nigra), white oak (Q.
alba), red oak (Q. falcata), Virginia pine (Pinus virginiana), sourwood (Oxydendrum arboreum),
flowering dogwood (Cornus florida), privet (Ligustrum sinense), Russian olive (Eleagnus
umbellata), and wild grape (Vitus rotundiolla). The canopy trees are characterized by tree heights
of 60-80 feet and diameters at breast height of approximately one foot.
The field, associated with the former on-site farm, is located on the northeastern corner of the site
and is dominated by ragweed (Ambrosia artemisiifolia), blackberry (Rubes argutus), winged
sumac (Rhos coPallina), goldenrod (Solidago sp.), Asters poke weed (Phtolacca americans
Pp?. 3' ),
Japanese honeysuckle (Lonicera japonica), hackberry (Cells laevigata), Virginia pine (Pinus
virginiana), wild cherry (Prunus serotina), and black oak (Quercus nigra). Vegetation associated
Fridek John A. 1992 Recovery Plan for Carolina HeelspUiter (Lasmlgona decorata) Lea. Prepared for
United States Fish and WU&I a Service, Southeast Region, Atlanta, Georgia.
United States Fish and Wildlife Service 1993. Endangered and Threatened Species of the Southeastern
r United States (The Red Book). Region 4
rl
w Proposed South West High School April 28, 2000
LAWProjed No. 30100-9-4305
with on-site riparian areas includes, white oak, flowering dogwood, black
gum (Nyssa sylvatica),
red maple (Acer rubrum), and wild cherry.
`a SOILS
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The soils on the South West High School site were mapped by the Soil Conservation Service
(SOS) Mecklenburg County Soil Survey as Cecil sandy clay loam (2-86/o slopes), Cecil sandy loam
(8-15% slopes), Mecklenburg fine sandy loam (2-8% slopes), Mecklenburg fine sandy loam (8-
15% slopes), Monacan, Pacolet sandy loam (15-25% slopes), and Wilkes loam (15-25% slopes),
Cecil soils (CeB2 and CeD2) dominate the project area. These well-drained soils are typically
located on the broad ridges and side slopes of uplands. Monacan soils, associated with the on-site
water features, have the potential to contain inclusions of hydric soils. The remaining soils on the
subject property are well drained and are generally found on the ridges or side slopes of upland
areas. The subject property is not located within the 100-year floodplain.
FINDINGS
Schweinitz's Sunflower
Schweinitz's sunflower was not found during the protected species survey.
This species is a perennial herb limited to 35 known populations in North and South Carolina3. Its
habitat includes roadsides, old pastures, transmission line R/Ws, open areas, and edges of upland
woods on moist and dryish clays, clay loams, or sandy clay-loams that often have a high gravel
content and are moderately podzolized (formation of a layer from the leaching of minerals and
organics from top layers combined with material in lower layers). Schweinitz's sunflower is
found primarily on Iredell soils. This species' survival is largely threatened by
destruction/alteration of its open habitat, fire suppression, residential/commercial development,
and right of ways maintenance practices. According to the NCNHP, there is not a known
occurrence of a Schweinitz's sunflower population within a one-mile radius of the subject site.
R., Our field investigations of the project areas containing both Cecil soils and open field habitat were
' examined for the presence of this plant. The Schweinitz's sunflower was not observed within
these areas of the project corridor.
r?
Smooth Coneflower
Smooth Coneflower was not found during the protected species survey.
The current range of this plant includes Virginia, North Carolina, South Carolina, and Georgia.
Population numbers in these states are as follows: Virginia (6), North Carolina (6), South Carolina
(+n, and Georgia (3). Populations are known to occur in Durham and Granville Counties in North
Carolina4. The habitat of smooth coneflower includes open woods, roadsides, transmission line
right of ways, and clear areas. In North Carolina this perennial plant usually occurs in magnesium
Weakfey, Alan S. and R.D. Houk. 1994 Recovery Plan for Schweink's Sunflower (Helfanthus
schwelnitzli). Prepared for United States Fish and Wlldl fe Service, Southeast Region, Atlanta, Georgim
' United States Fish and Wf dUfe Service. 1993. Endangered and Threatened Species of the Southeastern
?"' United States (The Red Book). Region 4.
r?...' Proposed South West High School April 28, 2000
LAW Project No. 30100-9-4305
r,
and calcium-rich soils associated with diabase and gabbro. This species requires periodic
disturbance such as fire and selective thinning (of competitive woody plants). Without repeated
disturbances, the open habitat preferred by smooth coneflower can be overrun by herbs, shrubs,
F and trees. The existence of this species is threatened most by residential/industrial development,
competition with woody plants, roadway construction, illegal removal, and particular types of
transmission line right of way maintenance practices.
t:
Based on the habitat requirements for this coneflower, the only likely habitat observed on the
-subject property was along roadsides and the sewer line R/W. These areas of the site were
examined for evidence of the smooth coneflower, but no plants were found. This area of the site
was examined for evidence of the smooth coneflower, but no plants were found.
SUI UK"Y
:.. The protected species survey conducted August 26, 1999 on the proposed South West High School
site in Charlotte, NC did not reveal the presence of any of the aforementioned federally protected
r plants or animals. Moreover, the development of the proposed subject site is not likely to impact
y any threatened or endangered species. The only potential habitats for Schweinitz's sunflower and
smooth coneflower on site are roadsides and the transmission line right of way. Since these areas
are under frequent disturbance, it is unlikely that any extant (i.e., still existing) populations of
Schweinitz's sunflower and smooth coneflower occur on the, subject property. Based on habitat
requirements and field observations, this protected species assessment concludes that the
likelihood of the occurrence of Schweinitz's sunflower and smooth coneflower on the South West
High School site is remote.
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dN iTA1F °'
North Carolina Department of Cultural Resources
State Historic Preservation Office
David L. S. Brook, Administrator
James B. Hunt Jr., Governor Division of Archives and History
Betty Ray McCain, Secretary
Jeffrey J. Crow, Director
February 24, 2000
Michael A. Iagnocco
LAW Engineering
2801 Yorkmont Rd.
Charlotte, NC 28208
Re: Proposed Construction of South West High School, Nations Ford Rd., Mecklenburg
County, State Clearinghouse 00-&4300-0129
r? Dear Mr. Iagnocco:
Thank you for your letter of December 21, 1999, transmitting the archaeological report on the
.,, subject project. Although we did not recommend an archaeological survey, we will place the
report in our permanent files for future reference.
The above comments are made pursuant to Section 106 of the National Historic Preservation Act
and the Advisory Council on Historic Preservation's Regulations for Compliance with Section
106 codified at 36 CFR Part 800.
Thank you for your cooperation and consideration. If you have questions concerning the above
comment, please contact kenee Gledhill-Earley, environmental review coordinator, at 919/733-
r 4763.
Sincerely,
David Brook
Deputy State Historic Preservation Officer
DB:scb
cc: Loretta Lautzenheiser

C
.
ADMINISTRATION
rl ARCHAEOLOGY
RESTORATION
SURVEY & PLANNING
Location Mailing Address Telephone/Fa:
507 N. Blount SL, Raleigh NO 4617 Mail Service Center, Raleigh NO 27699-4617 [phone] - 733-8653
421 N. Blountst.,'Aaleigh NO 4619 Mail Service Center, Raleigh NO 27699-4619 [phone] - 715-2671
515 N. Blount St., Raleigh NO 4613 Mail Service Center, Raleigh NO 27699-4613 [phone] - 715-4801
515 N. Blount SL, Raleigh NO 4618 Mail Service Center,. Raleigh NO 27699-4618 [phone] - 715-4801
DWQ # 000582; South West High School, Mecklenburg County
Subject: DWQ # 000582; South West High School, Mecklenburg County
Date: Mon, 17 Jul 2000 16:58:15 -0400
From: "Iagnocco,Michael" <[e-mail]>
To: 'John Dorney' <[e-mail]. nc.us>
Hey John! Hope things are going well! (or at least as well as can be expected!); in receipt of your correspondence
dated June 30th regarding your inability to issue the 401 certification and the need to place the project on indefinite
hold until the SEPA process has been satisfied; just wanted to confirm your statement that you will continue to review
the project and make us aware of any concerns.
We trust, that you may have concerns/comments regarding the stormwater management plan, mitigation plan, etc.;
FYI, the project EA has been submitted to Milt for internal DWQ/DENR review. Needless to say, the school
construction schedule is an extremely critical issue - and since we are already challenged by the 404 Individual
Permit process, any comments/concerns you can provide in continuing the review of the 401, short of issuance,
would be rg eatly appreciated!!!
Please let me know if my interpretation of your letter is in error ...thanks John...
*********************************************
Michael A. Iagnocco (ihn YAH koh)
Sr. Scientist
Law Engineering & Environmental Services, Inc.
2801 Yorkmont Road
Charlotte, North Carolina 28208
Phone: [phone] ext. 5543
Fax: [phone]
E-Mail: [e-mail]
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