20031345 Ver 1_COMPLETE FILE_20070831

WAMichael F. Easley, Governor
William G. Ross Jr., Secretary
\O? QG North Carolina Department of Environment and Natural Resources
C? Alan W. Klimek, P.E., Director
r
Wa 'i Division of Water Quality
Colcen fl. Sullins, Deputy Director
-°? Division of Water Quality
January 12, 2004
DWQ# 03-1345
Stanly County
Mr. Raymond Allen
City of Albemarle
144 North Second St.
Albemarle, NC 28002
Subject: Police Substation Addition, Fire Station Three
APPROVAL of 401 Water Quality Certification with Additional Conditions
Dear Mr. Allen:
You have our approval, in accordance with the attached conditions and those listed below, to replace the
existing culvert and impact an additional 96 linear feet of unnamed perennial stream in order to construct the
police substation addition to Fire Station Three in Stanly County, as described in your application received by the
Division of Water Quality (DWQ) on October 31, 2003. After reviewing your application, we have determined
that this project is covered by Water Quality General Certification Number 3402, which can be viewed on our
web site at http://h2o.enr.state.nc.us/ncwetlands. This General Certification allows you to use Nationwide Permit
Number 39 when it is issued by the U.S. Army Corps of Engineers (USACOE). Please note that you should get
any other federal, state or local permits before proceeding with your project, including those required by (but not
limited to) Sediment and Erosion Control, Non-Discharge, and Water Supply Watershed regulations.
This Certification will expire when the associated 404 permit issued by the USACOE expires unless
otherwise specified in the General Certification. This approval is only valid for the purpose and design that you
described in your application. If you change your project, you must notify us in writing, 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 the Certification and approval letter; and is thereby responsible for complying with all conditions.
If the total wetland fill for this project (now or in the future) exceeds 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, as well as the additional conditions listed below:
1. The stormwater facilities must be designed to treat the runoff from the entire project, unless otherwise
explicitly approved by the DWQ. Also, before any permanent building is occupied at the subject site, the
facilities as submitted/approved shall be constructed and operational, and the stormwater management
plan shall be implemented. The structural stormwater practices as well as drainage patterns must be
maintained in perpetuity. No changes to the structural stormwater practices shall be made without written
authorization from the DWQ.
2. The culverts required for this project shall be installed in such a manner that the original stream profiles are
not altered (i.e. the depth of the channel must not be reduced by a widening of the streambed). Existing
stream dimensions (including the pattern and profile) are to be maintained above and below locations of each
culvert. The culvert shall be designed and installed to allow for aquatic life movement as well as to prevent
head cutting of the streams. If any of the existing pipes are or become perched, the appropriate stream
grade shall be re-established, or if the pipes are installed in a perched manner then the pipes shall be
°nelre_jB ,ypd and re-installed correctly; ''?'
N
.,Vatrtra!!if ? -
NCDEN R
N. C. Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
[phone] (phone), 919-733-6893 (fax), (http://l12o.enr.state.nC.us/ncwetlands)
Customer Service #: 1-877-623-6748
Page 2
3. No waste, spoil, solids, or fill of any kind shall occur in wetlands, waters, or riparian areas beyond the
footprint of the impacts depicted in the Preconstruction Notification application. All construction activities,
including the design, installation, operation, and maintenance of sediment and erosion control Best
management Practices (BMP) shall be performed so that no violations of state water quality standards,
statutes, or rules occur.
4. Erosion and sediment control practices must be in full compliance with all specifications governing the proper
design, installation and operation and maintenance of such BMP:
a. The design, installation, operation, and maintenance of the erosion and sediment control measures (the
measures) must be such that they equal, or exceed, the requirements specified in the most recent version
of the North Carolina Sediment and Erosion Control Planning and Design Manual (the Manual).
b. The measures shall be maintained on all construction sites, borrow sites, and waste pile (spoil) sites,
including contractor-owned or leased borrow pits associated with project.
c. The reclamation measures and implementation of these measures must be in accordance with the
requirements of the Sedimentation Pollution Control Act.
5. Upon completion of the project, the applicant/responsible party shall complete and return the enclosed
"Certificate of Completion" form to the Division of Water Quality's 401/Wetlands Unit. Please send of each
culvert site, upstream and downstream, to document correct installation along with the Certificate of
Completion form.
If you do not accept any of the conditions of this certification, you may ask for an adjudicatory hearing. You
must act within 60 days of the date that you receive this letter. To ask for a hearing, send a written petition that
conforms to Chapter 150B of the North Carolina General Statutes to the Office of Administrative Hearings, 6714
Mail Service Center, Raleigh, N.C. 27699-6714. 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 Alan Johnson in the Mooresville Regional Office at 704-663-1699 or
Cyndi Karoly in the Central Office in Raleigh at 919-733-9721.
Sincerely,
Alan W. Klimek, P.E.
AJ/aj
Attachments
cc: Corps of Engineers Asheville Regulatory Field Office
Wetlands Unit - Cyndi Karoly
Central Files
File Copy
OCT 15 2003
U.S. ARMY-CORPS O] INGINI! ERS
WILMINGTON DISTRICT
Action Id. 200410001 County Stan]
11,?,Z1314 751g7j
OCT 2003 N;
Received J
M City Manager's
? Ofi?co ?ti
ti
Quad
GENERAL PERMIT (REGIONAL AND NATIONWIDE) VERIFICATION
Property owner: City of Albemarle, Attn: Mr. R. Allen WET?p,NDS 1401 GROUP
Address: P.O. Box 190
Albemarle, NC 28002 OCT 3 1 2003
Telephone No:
Zone: 44 UTM or LAT/LONG: North: 3916161 East: 426542 WATER QUALITY SECTION
Size and Location of project (water body, road name/number, town, etc.): Police Substation addition to Fire Station
Three located in Albemarle on a 6534 acre tract on the northwest corner of the intersection of Northeast
Connector and Northwoods Lane.
Description of Activity: Replace 48 LF of culvert with 48 LF of new culvert and install 96 LF of additional
culvert (dual 48-inch concrete pipes) in an unnamed tributary to Little Long Creek for the purpose of
accomodating the construction of the above referenced building and associated parking.
Mitigation: perform an upstream channel cleanup including the removal of obstructions, debris, and
streambed paving. Additionally, the City will establish native, shrub vegetation on the banks of the channel
at the site.
Applicable Law: _X Section 404 (Clean Water Act, 33 U.S.C. 1344)
(check all that apply) Section 10 (River and Harbors Act of 1899)
Authorization: NW39 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. If your activity is subject to Section 404 (if
Section 404 block above is checked), before beginning work you must also receive a Section 401 water quality
certification from the N.C. Division of Environmental Management, telephone [phone]. For any activitywithin
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.
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: Octnher 8, 2003
Corps Regulatory Official: Stephen D. Chapin Telephone No.: [phone] x S
Expiration Date of Verification: Octoher R. 2005
cc: Chambers Engineering, PA, P.O. Box 1726, Albemarle, NC 28002
Water Oak, 301 Water Oak Ln., Matthews, NC 28104
CESAW Form 591
Revised July 1995
Re: MRO Tracking Notice, 12/10/03
Subject: Re: MRO Tracking Notice, 12/10/03
Date: Wed, 10 Dec 2003 16:10:15 -0500
From: Alan Johnson <[e-mail]>
Organization: NC DENR - Mooresville Regional Office
To: Cyndi Karoly <[e-mail]>
sent out a hold letter for 03-1345, stanly county, albermarle police/fire
station addition, for stormwater info other are on tap.
Cyndi Karoly wrote:
> Hi Alan, Samar, Mike
> Below is this week's 401 Tracking Notice for the MooresvilleRegional
> Office. The Central Office has not received your recommendations for
> these projects as of December 10, 2003. If you have not received any
> application, please let me know and I will fax it to you. Please take
> note of the date received in the Central Office and the 60-day clock
> projection. if we do not have your comments by two weeks before the
> clock expires, we may have to prepare the 401 without incorporating your
> comments, in order to avoid waiving the 401. Two weeks from today, the
> application will be forwarded to the appropriate Central Office staff
> member (Todd St. John) if we do not have Regional Office comments by
> then. The CO staff will then consult you if time allows and make a
> recommendation on the 401 to John Dorney.
> TRACKING:
> 401 Applications
> DWQ No. Project County Permit Type Received Expires
> 03-1412 Eastwood Development Corporation, Shannon Vista, Union Co.,
> 1EV12139 11110103 118104
> 03-1277 Edward & Bethany Gerrard, Catawba Co., GP30 1113103
> 1/1/04
> 03-1345 Police Substation addition, Stanly Co., NW39 10131103
> 12/29/03
> 03-1417 Andover Capital Improvement Project, Mecklenburg Co.,
> 1VW3/12 11112103 1110104
> Please use the staff recommendation sheet in Filemaker Pro, and then
> notify me that the report has been filed. My e-mail address is
> [e-mail] or you can call me at 919-733-9721.
> There are no tardy projects for MRO this week.
> Thanks very much for your attention.
Alan Johnson - [e-mail]
%TITLE%
North Carolina Dept. of Environment & Natural Resources
Div. of Water Quality
919 N. Main St.
Mooresville, NC 28115
Ph: [phone] Fax: [phone]
1 of 2
i
12/10/03 4:18 PM

Date: . . Illy/o,3
To: ? ARO
? FRO
9 MRO
El RRO
Triage Check Dist
Project Name: Po(,--e a"U, 4'
DWQ#: a 3 1) 'L5-
County: 5-ra 1 1,e y
Mike Parker ?' WaRO
Ken Averitte ? WiRO
Alan Johnson ? WSRO
Steve Mitchell
From: Larry L*h
Tom Steffens
Noelle Lutheran
Daryl Lamb
Telephone : (919) his 7y71
The file attached is being forwarded to your for your evaluation.
Please call if you need assistance.
? Stream length impactdd
? Stream determination
? Wetland determination and distance to blue-line surface waters on USFW topo maps
? Minimization/avoidance issues
? Buffer Rules (Meuse, Tar-Pamlico, Catawba, Randleman)
? Pond fill
? Mitigation Ratios
? Ditching
? ' Are the stream and or wetland mitigation sites available and viable?
? Check drawings for accuracy
? Is the application consistent with pre-application meetings?
? Cumulative impact concern
Comments: 114,, f?e?! S}?4rM In -ie Gor???` ??`?r
P 0 Box 190
Albenimle, NC 28002-0190
«1viv.ci.albe mark. nc.us
City of RtbeitYarle
Port1J Carolina
October 29, 2003
Todd St. John
The Wetlands / 401 Water Quality Certification Unit
Division of Water Quality
NC Department of Environment and Natural Resources
1650 Mail Service Center
Raleigh, NC 27699-1650
Reference: City of Albemarle
WETLANDS/ 401 GROUP
OCT 3 1 2003
WATER QUALITY SECTION
Fire Station Number 3
USACE Action Id. 20043001
Quad: New London
Stanly County
Dear Mr. St. John:
I am submitting 7 copies of the U.S. Army Corps of Engineers General Permit (Regional and
Nationwide) Verification along with all the supporting information and a check in the amount of
$200.00 for the Section 401 Water Quality Certification. This project concerns the cumulative
impact and the mitigation of 96 linear feet of jurisdictional stream by culvert piping.
The following items are enclosed:
1. General Permit Verification - Action Id. # 20043001
2. The PCN Application form.
3. Natural Resources Investigation Report
4. USGS Cut Sheet with Flow Area Determination
5. Engineering Drawings
Our consultant-engineering firm, Chambers Engineering of Albemarle, NC, prepared all the
submitted documentation. If you or your staff requires further information, please contact me at 704-
984-9437.
Since ly,
Ernest D. orders, C.E.T
Director of Engineering Services
cc: Raymond I. Allen, City Manager
Engineering Department
File
Ernest D. Borders,C.E.I'.
Director of Engineering Services
?t Phone - 701-98-19137
.`C Far - 704-981-9135
[e-mail]
Encl.

NATIONWIDE PERMIT 39 OCT 15 2003
DEPARTMENT OF THE ARMY
CORPS OF ENGINEERS ?n?r.pa,n-
r iiev "-C"' '!'.1.
FINAL NOTICE OF ISSUANCE AND MODIFICATION OF NATIONWIDE PERMITS ' 'T
FEDERAL REGISTER
AUTHORIZED MARCH 18, 2002
Residential, Commercial, and Institutional Developments. Discharges of dredged or fill material into non-tidal
waters of the United States, excluding non-tidal wetlands adjacent to tidal waters, for the construction or expansion
of residential, commercial, and institutional building foundations and building pads and attendant features that are
necessary for the use and maintenance of the structures. Attendant features may include, but are not limited to, roads,
parking lots, garages, yards, utility lines, stormwater management facilities, and recreation facilities such as
playgrounds, playing fields, and golf courses (provided the golf course is an integral part of the residential
development). The construction of new ski areas or oil and gas wells is not authorized by this nationwide permit.
Residential developments include multiple and single unit developments. Examples of commercial developments
include retail stores, industrial facilities, restaurants, business parks, and shopping centers. Examples of institutional
developments include schools, fire stations, government office buildings, judicial buildings, public works buildings,
libraries, hospitals, and places of worship. The activities listed above are authorized, provided the activities meet all
of the following criteria:
A. The discharge does not cause the loss of greater than \1/2\ acre of non-tidal waters of the United States,
excluding non-tidal wetlands adjacent to tidal waters;
B. The discharge does not cause the loss of greater than 300 linear feet of a stream bed, unless for intermittent
stream beds this criterion is waived in writing pursuant to a determination by the District Engineer, as specified
below, that the project complies with all terms and conditions of this nationwide permit and that any adverse impacts
of the project on the aquatic environment are minimal, both individually and cumulatively;
C. The permittee must notify the District Engineer in accordance with General Condition 13, if any of the .
following criteria are met:
1. The discharge causes the loss of greater than \1/10\ acre of non-tidal waters of the United States, excluding
non-tidal wetlands adjacent to tidal waters; or
2. The discharge causes the loss of any open waters, including perennial or intermittent streams, below the
ordinary high water mark (see Note, below), or
3. The discharge causes the loss of greater than 300 linear feet of intermittent stream bed. In such case, to be .
authorized the District Engineer must determine that the activity complies with the other terms and conditions of the
nationwide permit, determine adverse environmental
effects are minimal both individually and cumulatively, and waive the limitation on stream impacts in writing before
the permittee may proceed:
D. For discharges in special aquatic sites, including wetlands, the notification must include a delineation of
affected special aquatic sites;
E. The discharge is part of a single and complete project;
F. The permittee must avoid and minimize discharges into waters of the United States at the project site to the
maximum extent practicable. The notification, when required, must include a written statement explaining how
avoidance and minimization of losses of waters of the United States were achieved on the project site. Compensatory
mitigation will normally be required to offset the losses of waters of the United States. (See General Condition 19.)
The notification must also include a compensatory mitigation proposal for offsetting unavoidable losses of waters of
the United States. If an applicant asserts that the adverse effects of the project are minimal without mitigation, then
the applicant may submit justification explaining why compensatory mitigation should not be required for the
District Engineer's consideration;
G. When this nationwide permit is used in conjunction with any other nationwide permit, any combined total
permanent loss of waters of the United States exceeding \1/10\ acre requires that the permittee notify the District
Engineer in accordance with General Condition 13;
H. Any work authorized by this nationwide permit must not cause more than minimal degradation of water quality
or more than minimal changes to the flow characteristics of any stream (see General Conditions 9 and 21);
I. For discharges causing the loss of \1/10\ acre or less of waters of the United States, the permittee must submit a
report, within 30 days of completion of the work, to the District Engineer that contains the following information: (1)
The name, address, and telephone number of the permittee; (2) The location of the work; (3) A description of the
work; (4) The type and acreage of the loss of waters of the United States (e.g., \1/2\ acre of emergent wetlands); and
(5) The type and acreage of any compensatory mitigation used to offset the loss of waters of the United States (e.g.,
\1/2\ acre of emergent wetlands created on-site);
J. If there are any open waters or streams within the project area, the permittee will establish and maintain, to the
maximum extent practicable, wetland or upland vegetated buffers next to those open waters or streams consistent
with General Condition 19. Deed restrictions, conservation easements, protective covenants, or other means of land
conservation and preservation are required to protect and maintain the vegetated buffers established on the project
site.
Only residential, commercial, and institutional activities with structures on the foundation(s) or building pad(s), as
well as the attendant features, are authorized by this nationwide permit. The compensatory mitigation proposal
required in paragraph (f) of this nationwide permit may be either conceptual or detailed. The wetland or upland
vegetated buffer required in paragraph 0) of this nationwide permit will determined on a case-by-case basis by the
District Engineer for addressing water quality concerns. The required wetland or upland vegetated buffer is part of
the overall compensatory mitigation requirement for this nationwide permit. If the project site was previously used
for agricultural purposes and the farm owner/operator used Nationwide Permit 40 to authorize activities in waters of
the United States to increase production or construct farm buildings, Nationwide Permit 39 cannot be used by the
developer to authorize additional activities in waters of the United States on the project site in excess of the acreage
limit for Nationwide Permit 39 (i.e., the combined acreage loss authorized under Nationwide Permits 39 and 40
cannot exceed \1/2\ acre).
Subdivisions: For residential subdivisions, the aggregate total loss of waters of Unites States authorized by
Nationwide Permit 39 can not exceed\1/2\ acre. This includes any loss of waters associated with development of
individual subdivision lots. (Sections 10 and 404)
Note: Areas where wetland vegetation is not present should be determined by the presence or absence of an
ordinary high water mark or bed and bank. Areas that are waters of the United States based on this criterion would
require a Pre-Construction Notification (PCN) although water is infrequently present in the stream channel (except
for ephemeral waters, which do not require PCNs under paragraph (c)(s), above; however, activities that result in the
loss of greater than\1/10\ acre of ephemeral waters would require PCNs under paragraph (c)(1), above) are
determined by the presence or absence of an ordinary high water mark or bed and bank. Areas that are waters of the
United States based on this criteria would require a PCN even though water is infrequently present in the stream
channel (except for ephemeral waters).
NATIONWIDE PERMIT GENERAL CONDITIONS
The following General Conditions must be followed in order for any authorization by a NWP to be valid:
1. Navigation. No activity may cause more than a minimal adverse effect on navigation.
2. Proper Maintenance. Any structure or fill authorized shall be properly maintained, including maintenance
to ensure public safety.
2
3. Soil Erosion and Sediment Controls. Appropriate soil erosion and sediment controls must be used and .
maintained in effective operating condition during construction, and all exposed soil and other fills, as well as any
work below the ordinary high water mark or high tide line, must be permanently stabilized at the earliest practicable
date. Permittees are encouraged to perform work within waters of the United States during periods of low-flow or
no-flow.
4. Aquatic Life Movements. No activity may substantially disrupt the necessary life-cycle movements of those
species of aquatic life indigenous to the waterbody, including those species that normally migrate through the area,
unless the activity's primary purpose is to impound water. Culverts placed in streams must be installed to maintain
low flow conditions.
5. Equipment. Heavy equipment working in wetlands must be placed on mats, or other measures must be
taken to minimize soil disturbance.
6. Regional and Case-By-Case Conditions. The activity must comply with any regional conditions that may
have been added by the Division Engineer (see 33 CFR 330.4(e)) and with any case specific conditions added by the
Corps or by the state or tribe in its Section 401 Water Quality Certification and Coastal Zone Management Act
consistency determination.
7. Wild and Scenic Rivers. No activity may occur in a component of the National Wild and Scenic River
System; or in a river officially designated by Congress as a'study river" for possible inclusion in the system, while
the river is in an official study status; unless the appropriate Federal agency, with direct management responsibility
for such river, has determined in writing that the proposed activity will not adversely affect the Wild and Scenic
River designation, or study status. Information on Wild and Scenic Rivers may be obtained from the appropriate
Federal land management agency in the area (e.g., National Park Service, U.S. Forest Service, Bureau of Land
Management, U.S. Fish and Wildlife Service).
8. Tribal Rights. No activity or its operation may impair reserved tribal rights, including, but not limited to,
reserved water rights and treaty fishing and hunting rights.
9. Water Quality.
a. In certain states and tribal lands an individual 401 Water Quality Certification must be obtained or
waived (See 33 CFR 330.4(c)).
b. For NWPs 12, 14, 17, 18, 32, 39, 40, 42, 43, and 44, where the state or tribal 401 certification (either
generically or individually) does not require or approve water quality management measures, the permittee must
provide water quality management measures that will ensure that the authorized work does not result in more than
minimal degradation of water quality (or the Corps determines that compliance with state or local standards, where
applicable, will ensure no more than minimal adverse effect on water quality). An important component of water
quality management includes stormwater management that minimizes degradation of the downstream aquatic system,
including water quality (refer to General Condition 21 for stormwater management requirements). Another
important component of water quality management is the establishment and maintenance of vegetated buffers next to
open waters, including streams (refer to General Condition 19 for vegetated buffer requirements for the NWPs).
This condition is only applicable to projects that have the potential to affect water quality. While appropriate
measures must be taken, in most cases it is not necessary to conduct detailed studies to identify such measures or to
require monitoring.
10. Coastal Zone Management. In certain states, an individual state coastal zone management consistency
concurrence must be obtained or waived (see 33 CFR 330.4(d)).
11. Endangered Species.
a. No activity is authorized under any NWP which is likely to jeopardize the continued existence of a
threatened or endangered species or a species proposed for such designation, as identified under the Federal
Endangered Species Act (ESA), or which will destroy or adversely modify the critical habitat of such species.
Non-federal permittees shall notify the District Engineer if any listed species or designated critical habitat might be
affected or is in the vicinity of the project, or is located in the designated critical habitat and shall not begin work on
the activity until notified by the District Engineer that the requirements of the ESA have been satisfied and that the
activity is authorized. For activities that may affect Federally-listed endangered or threatened species or designated
critical habitat, the notification must include the name(s) of the endangered or threatened species that may be
affected by the proposed work or that utilize the designated critical habitat that may be affected by the proposed
work. As a result of formal or informal consultation with the FWS or NMFS the District Engineer may add
species-specific regional endangered species conditions to the NWPs.
b. Authorization of an activity by a NWP does not authorize the "take" of a threatened or endangered
species as defined under the ESA. In the absence of separate authorization (e.g., an ESA Section 10 Permit, a
Biological Opinion with "incidental take" provisions, etc.) from the USFWS or the NMFS, both lethal and non-lethal
"takes" of protected species are in violation of the ESA. Information on the location of threatened and endangered
species and their critical habitat can be obtained directly from the offices of the USFWS and NMFS or their World
Wide Web pages at http://www.fWs.gov/r9endspp/endspp.html and http://www.nfrns.noaa.gov/prot
res/overview/es.html respectively.
12. Historic Properties. No activity that may affect historic properties listed, or eligible for listing, in the .
National Register of Historic Places is authorized, until the District Engineer has complied with the provisions of 33
CFR part 325, Appendix C. The prospective permittee must notify the District Engineer if the authorized activity
may affect any historic properties listed, determined to be eligible, or which the prospective permittee has reason to
believe may be eligible for listing on the National Register of Historic Places, and shall not begin the activity until
notified by the District Engineer that the requirements of the National Historic Preservation Act have been satisfied
and that the activity is authorized. Information on the location and existence of historic resources can be obtained
from the State Historic Preservation Office and the National Register of Historic Places (see 33 CFR 330.4(g)). For
activities that may affect historic properties listed in, or eligible for listing in, the National Register of Historic
Places, the notification must state which historic property may be affected by the proposed work or include a vicinity
map indicating the location of the historic property.
13. Notification.
a. Timing; where required by the terms of the NWP, the prospective permittee must notify the District
Engineer with a preconstruction notification (PCN) as early as possible. The District Engineer must determine if the
notification is complete within 30 days of the date of receipt and can request additional information necessary to
make the PCN complete only once. However, if the prospective permittee does not provide all of the requested
information, then the District Engineer will notify the prospective permittee that the notification is still incomplete
and the PCN review process will not commence until all of the requested information has been received by the
District Engineer. The prospective permittee shall not begin the activity:
1. Until notified in writing by the District Engineer that the activity may proceed under the NWP
with any special conditions imposed by the District or Division Engineer; or
2. If notified in writing by the District or Division Engineer that an Individual Permit is required; or .
3. Unless 45 days have passed from the District Engineer's receipt of the complete notification and
the prospective permittee has not received written notice from the District or Division Engineer. Subsequently, the
permittee's right to proceed under the NWP may be modified, suspended, or revoked only in accordance with the
procedure set forth in 33 CFR 330.5(d)(2).
b. Contents of Notification: The notification must be in writing and include the following information:
1. Name, address and telephone numbers of the prospective permittee;
2. Location of the proposed project;
3. Brief description of the proposed project; the project's purpose; direct and indirect adverse
environmental effects the project would cause; any other NWP(s), Regional General Permit(s), or Individual
Permit(s) used or intended to be used to authorize any part
4
of the proposed project or any related activity. Sketches should be provided when necessary to show that the activity
complies with the terms of the NWP (Sketches usually clarify the project and when provided result in a quicker
decision.);
4. For NWPs 7, 12, 14, 18, 21, 34, 38, 39, 40, 41, 42, and 43, the PCN
must also include a delineation of affected special aquatic sites, including wetlands, vegetated shallows (e.g.,
submerged aquatic vegetation, seagrass beds), and riffle and pool complexes (see
paragraph 13(f));
5. For NWP 7 (Cutfall Structures and Maintenance), the PCN must include information regarding the
original design capacities and configurations of those areas of the facility where maintenance dredging or excavation
is proposed;
6. For NWP 14 (Linear Transportation Projects), the PCN must include a compensatory mitigation
proposal to offset permanent losses of waters of the US and a statement describing how temporary losses of waters of
the US will be minimized to the maximum extent practicable;
7. For NWP 21 (Surface Coal Mining Activities), the PCN must include an Office of Surface Mining
(OSM) or state-approved mitigation plan, if applicable. To be authorized by this NWP, the District Engineer must
determine that the activity complies with the terms and conditions of the NWP and that the adverse environmental
effects are minimal both individually and cumulatively and must notify the project sponsor of this determination in
writing;
8. For NWP 27 (Stream and Wetland Restoration Activities), the PCN must include documentation
of the prior condition of the site that will be reverted by the permittee;
9. For NWP 29 (Single-Family Housing), the PCN must also include:
i. Any past use of this NWP by the Individual Permittee and/or the permittee's spouse;
ii. A statement that the single-family housing activity is for a personal residence of the permittee;
iii. A description of the entire parcel, including its size, and a delineation of wetlands. For the
purpose of this NWP, parcels of land measuring \1/4\-acre or less will not require a formal on-site delineation.
However, the applicant shall provide an indication of where the wetlands are and the amount of wetlands that exists
on the property. For parcels greater than \1/4\-acre in size, formal wetland delineation must be prepared in
accordance with the current method required by the Corps. (See paragraph 13(f));
iv. A written description of all land (including, if available, legal descriptions) owned by the
prospective permittee and/or the prospective permittee's spouse, within a one mile radius of the parcel, in any form of
ownership (including any land owned as a partner, corporation, joint tenant, co-tenant, or as a tenant-by-the-entirety)
and any land on which a purchase and sale agreement or other contract for sale or purchase has been executed;
10. For NWP 31 (Maintenance of Existing Flood Control Facilities), the prospective permittee must
either notify the District Engineer with a PCN prior to each maintenance activity or submit a five-year (or less)
maintenance plan. In addition, the PCN must include all of the following:
i. Sufficient baseline information identifying the approved channel depths and configurations
and existing facilities. Minor deviations are authorized, provided the approved flood control protection or drainage is
not increased;
ii. A delineation of any affected special aquatic sites, including wetlands; and,
iii. Location of the dredged material disposal site;
11. For NWP 33 (Temporary Construction, Access, and Dewatering), the PCN must also include a
restoration plan of reasonable measures to avoid and minimize adverse effects to aquatic resources;
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12. For NWPs 39, 43 and 44, the PCN must also include a written statement to the District Engineer
explaining how avoidance and minimization. for losses of waters of the US were achieved on the project site;
13. For NWP 39 and NWP 42, the PCN must include a compensatory mitigation proposal to offset
losses of waters of the US or justification explaining why compensatory mitigation should not be required. For
discharges that cause the loss of greater than 300 linear feet of an intermittent stream bed, to be authorized, the
District Engineer must determine that the activity complies with the other terms and conditions of the NWP,
determine adverse environmental effects are minimal both individually and cumulatively, and waive the limitation on
stream impacts in writing before the permittee may proceed;
14. For NWP 40 (Agricultural Activities), the PCN must include a compensatory mitigation proposal
to offset losses of waters of the US. This NWP does not authorize the relocation of greater than 300 linear feet of
existing serviceable drainage ditches constructed in non-tidal streams unless, for drainage ditches constructed in
intermittent nontidal streams, the District Engineer waives this criterion in writing, and the District Engineer has
determined that the project complies with all terms and conditions of this NWT, and that any adverse impacts of the
project on the aquatic environment are minimal, both individually and cumulatively;
15. For NWP 43 (Stormwater Management Facilities), the PCN must include, for the construction of
new stormwater management facilities, a maintenance plan (in accordance with state and local requirements, if
applicable) and a compensatory mitigation proposal to offset losses of waters of the US. For discharges that cause
the loss of greater than 300 linear feet of an intermittent stream bed, to be authorized, the District Engineer must
determine that the activity complies with the other terms and conditions of the NWP, determine adverse
environmental effects are minimal both individually and cumulatively, and waive the limitation on stream impacts in
writing before the permittee may proceed;
16. For NWP 44 (Mining Activities), the PCN must include a description of all waters of the US
adversely affected by the project, a description of measures taken to minimize adverse effects to waters of the US, a
description of measures taken to comply with the criteria of the NWT, and a reclamation plan (for all aggregate
mining activities in isolated waters and non-tidal wetlands adjacent to headwaters and any hard rock/mineral mining
activities);
17. For activities that may adversely affect Federally-listed endangered or threatened species, the
PCN must include the name(s) of those endangered or threatened species that may be affected by the proposed work
or utilize the designated critical habitat that may be affected by the proposed work; and
18. For activities that may affect historic properties listed in, or eligible for listing in, the National
Register of Historic Places, the PCN must state which historic property may be affected by the proposed work or
include a vicinity map indicating the location of the historic property.
e. Form of Notification: The standard Individual Permit application form (Form ENG 4345) may be used
as the notification but must clearly indicate that it is a PCN and must include all of the information required in (b)
(1)-(18) of General Condition 13. A letter containing the requisite information may also be used.
d. District Engineer's Decision: In reviewing the PCN for the proposed activity, the District Engineer will
determine whether the activity authorized by the NWP will result in more than minimal individual or cumulative
adverse environmental effects or may be contrary to the public interest. The prospective permittee may submit a
proposed mitigation plan with the PCN to expedite the process. The District Engineer will consider any proposed
compensatory mitigation the applicant has included in the proposal in determining whether the net adverse
environmental effects to the aquatic environment of the proposed work are minimal. If the District Engineer
determines that the activity complies with the terms and conditions of the NWP and that the adverse effects on the
aquatic environment are minimal, after considering mitigation, the District Engineer will notify the permittee and
include any conditions the District Engineer deems necessary. The District Engineer must approve any compensatory
mitigation proposal before the permittee commences work. If the prospective permittee is required to submit a
compensatory mitigation proposal with the PCN, the proposal may be either conceptual or detailed. If the
prospective permittee elects to submit a compensatory mitigation plan with the PCN, the District Engineer will
expeditiously review the proposed compensatory mitigation plan. The District Engineer must review the plan within
45 days of receiving a complete PCN and determine whether the conceptual or specific proposed mitigation would
ensure no more than minimal adverse effects on the aquatic environment. If the net adverse effects of the project on
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the aquatic environment (after consideration of the compensatory mitigation proposal) are determined by the District
Engineer to be minimal, the District Engineer will provide a timely written response to the applicant. The response
will state that the project can proceed under the terms and conditions of the NWP.
If the District Engineer determines that the adverse effects of the proposed work are more than minimal, then
the District Engineer will notify the applicant either:
1. That the project does not qualify for authorization under the NWP and instruct the applicant on the
procedures to seek authorization under an Individual Permit;
2. that the project is authorized under the NWP subject to the applicant's submission of a mitigation
proposal that would reduce the adverse effects on the aquatic environment to the minimal level; or
3. that the project is authorized under the NWP with specific modifications or conditions. Where the
District Engineer determines that mitigation is required to ensure no more than minimal adverse effects occur to the
aquatic environment, the activity will be authorized within the 45-day PCN period. The authorization will include the
necessary conceptual or specific mitigation or a requirement that the applicant submit a mitigation proposal that
would reduce the adverse effects on the aquatic environment to the minimal level. When conceptual mitigation is
included, or a mitigation plan is required under item (2) above, no work in waters of the US will occur until the
District Engineer has approved a specific mitigation plan. `
e. Agency Coordination: The District Engineer will consider any comments from Federal and state
agencies concerning the proposed activity's compliance with the terms and conditions of the NWPs and the need for
mitigation to reduce the project's adverse environmental effects to a minimal level.
For activities requiring notification to the District Engineer that result in the loss of greater than \1/2\-acre of
waters of the US, the District Engineer will provide immediately (e.g., via facsimile transmission, overnight mail, or
other expeditious manner) a copy to the appropriate Federal or state offices (USFWS, state natural resource or water
quality agency, EPA, State Historic Preservation Officer (SHPO), and, if appropriate, the NMFS). With the
exception of NWP 37, these agencies will then have 10 calendar days from the date the material is transmitted to
telephone or fax the District Engineer notice that they intend to provide substantive, site-specific comments. If so
contacted by an agency, the District Engineer will wait an
additional 15 calendar days before making a decision on the notification. The District Engineer will fully consider
agency comments received within the specified time frame, but will provide no response to the resource agency,
except as provided below. The District Engineer will indicate in the administrative record associated with each
notification that the resource agencies' concerns were considered. As required by section 305(b)(4)(B) of the
Magnuson-Stevens Fishery Conservation and Management Act, the District Engineer will provide a response to
NMFS within 30 days of receipt of any Essential Fish Habitat conservation recommendations. Applicants are
encouraged to provide the Corps multiple copies of notifications to expedite agency notification.
f. Wetland Delineations: Wetland delineations must be prepared in accordance with the current method
required by the Corps (For NWP 29 see paragraph (b)(9)(iii) for parcels less than (\1/4\-acre in size). The permittee
may ask the Corps to delineate the special aquatic site. There may be some delay if the Corps does the delineation.
Furthermore, the 45-day period will not start until the wetland delineation has been completed and submitted to the
Corps, where appropriate.
14. Compliance Certification. Every permittee who has received NWP verification from the Corps will submit
a signed certification regarding the completed work and any required mitigation. The certification will be forwarded
by the Corps with the authorization letter and will include:
a. A statement that the authorized work was done in accordance with the Corps authorization, including
any general or specific conditions;
b. A statement that any required mitigation was completed in accordance with the permit conditions; and
c. The signature of the permittee certifying the completion of the work and mitigation.
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15. Use of Multiple Nationwide Permits. The use of more than one NWP for a single and complete project is
prohibited, except when the acreage loss of waters of the US authorized by the NWPs does not exceed the acreage
limit of the NWP with the highest specified acreage limit (e.g. if a road crossing over tidal waters is constructed .
under NWP 14, with associated bank stabilization authorized by NWP 13, the maximum acreage loss of waters of
the US for the total project cannot exceed \ 1/3\-acre) .
16. Water Supply Intakes. No activity, including structures and work in navigable waters of the US or
discharges of dredged or fill material, may occur in the proximity of a public water supply intake except where the
activity is for repair of the public water supply intake structures or adjacent bank stabilization.
17. Shellfish Beds. No activity, including structures and work in navigable waters of the US or discharges of
dredged or fill material, may occur in areas of concentrated shellfish populations, unless the activity is directly
related to a shellfish harvesting activity authorized by NWP 4.
18. Suitable Material. No activity, including structures and work in navigable waters of the US or discharges
of dredged or fill material, may consist of unsuitable material (e.g., trash, debris, car bodies, asphalt, etc.) and
material used for construction or discharged must be free from toxic pollutants in toxic amounts (see section 307 of
the C WA).
19. Mitigation. The District Engineer will consider the factors discussed below when determining the
acceptability of appropriate and practicable mitigation necessary to offset adverse effects on the aquatic environment
that are more than minimal.
a. The project must be designed and constructed to avoid and minimize adverse effects to waters of the
US to the maximum extent practicable at the project site (i.e., on site).
b. Mitigation in all its forms (avoiding, minimizing, rectifying, reducing or compensating) will be
required to the extent necessary to ensure that the adverse effects to the aquatic environment are minimal.
c. Compensatory mitigation at a minimum one-for-one ratio will be required for all wetland impacts
requiring a PCN, unless the District Engineer determines in writing that some other form of mitigation would be
more environmentally appropriate and provides a project-specific waiver of this requirement. Consistent with
National policy, the District Engineer will establish a preference for restoration of wetlands as compensatory
mitigation, with preservation used only in exceptional circumstances.
d. Compensatory mitigation (i.e., replacement or substitution of aquatic resources for those impacted) will
not be used to increase the acreage losses allowed by the acreage limits of some of the NWPs. For example,
\1/4\-acre of wetlands cannot be created to change a,\3/4\acre loss of wetlands to a \1/2\-acre loss associated with
NWP 39 verification. However, \1/2\-acre of created wetlands can be used to reduce the impacts of a \1/2\-acre loss
of wetlands to the minimum impact level in order to meet the minimal impact requirement associated with NWPs.
e. To be practicable, the mitigation must be available and capable of being done considering costs,
existing technology, and logistics in light of the overall project purposes. Examples of mitigation that may be
appropriate and practicable include, but are not limited to: reducing the size of the project; establishing and
maintaining wetland or upland vegetated buffers to protect open waters such as streams; and replacing losses of
aquatic resource functions and values by creating, restoring, enhancing, or preserving similar functions and values,
preferably in the same watershed.
f. Compensatory mitigation plans for projects in or near streams or other open waters will normally
include a requirement for the establishment, maintenance, and legal protection (e.g., easements, deed restrictions) of
vegetated buffers to open waters. In many cases, vegetated buffers will be the only compensatory mitigation
required. Vegetated buffers should consist of native species. The width of the vegetated buffers required will address
documented water quality or aquatic habitat loss concerns. Normally, the vegetated buffer will be 25 to 50 feet wide
on each side of the stream, but the District Engineers may require slightly wider vegetated buffers to address
documented water quality or habitat loss concerns. Where both wetlands and open waters exist on the project site,
the Corps will determine the appropriate compensatory mitigation (e.g., stream buffers or wetlands compensation)
based on what is best for the aquatic environment or, a watershed basis. In cases where vegetated buffers are
8
determined to be the most appropriate form of compensatory mitigation, the District Engineer may waive or reduce
the requirement to provide wetland compensatory mitigation for wetland impacts.
g. Compensatory mitigation proposals submitted with the " notification" may be either conceptual or
detailed. If conceptual plans are approved under the verification, then the Corps will condition the verification to
require detailed plans be submitted and approved by the Corps prior to construction of the authorized activity in
waters of the US.
h. Permittees may propose the use of mitigation banks, in-lieu fee arrangements or separate
activity-specific compensatory mitigation. In all cases that require compensatory mitigation, the mitigation
provisions will specify the party responsible for accomplishing and/or complying with the mitigation plan.
20. Spawning Areas. Activities, including structures and work in navigable waters of the US or discharges of
dredged or fill material, in spawning areas during spawning seasons must be avoided to the maximum extent
practicable. Activities that result in the physical destruction (e.g., excavate, fill, or smother downstream by
substantial turbidity) of an important spawning area are not authorized.
21. Management of Water Flows. To the maximum extent practicable, the activity must be designed to
maintain preconstruction downstream flow conditions (e.g., location, capacity, and flow rates). Furthermore, the
activity must not permanently restrict or impede the passage of normal or expected high flows (unless the primary
purpose of the fill is to impound waters) and the structure or discharge of dredged or fill material must withstand
expected high flows. The activity must, to the maximum extent practicable, provide for retaining excess flows from
the site, provide for maintaining surface flow rates from the site similar to preconstruction conditions, and provide
for not increasing water flows from the project site, relocating water, or redirecting water flow beyond
preconstruction conditions. Stream channelizing will be reduced to the minimal amount necessary, and the activity
must, to the maximum extent practicable, reduce adverse effects such as flooding or erosion downstream and
upstream of the project site, unless the activity is part of a larger system designed to manage water flows. In most
cases, it will not be a requirement to conduct detailed studies and monitoring of water flow.
This condition is only applicable to projects that have the potential to affect waterflows. While appropriate
measures' must be taken, it is not necessary to conduct detailed studies to identify such measures or require
monitoring to ensure their effectiveness. Normally, the Corps will defer to state and local authorities regarding
management of water flow.
22. Adverse Effects From Impoundments. If the activity creates an impoundment of water, adverse effects to
the aquatic system due to the acceleration of the passage of water, and/or the restricting its flow shall be minimized
to the maximum extent practicable. This includes structures and work in navigable waters of the US, or discharges of
dredged or fill material.
23. Waterfowl Breeding Areas. Activities, including structures and work in navigable waters of the US or
discharges of dredged or fill material, into breeding areas for migratory waterfowl must be avoided to the maximum
extent practicable.
24. Removal of Temporary Fills. Any temporary fills must be removed in their entirety and the affected areas
returned to their preexisting elevation.
25. Designated Critical Resource Waters. Critical resource waters include, NOAA-designated marine
sanctuaries, National Estuarine Research Reserves, National Wild and Scenic Rivers, critical habitat for Federally
listed threatened and endangered species, coral reefs, state natural heritage sites, and outstanding national resource
waters or other waters officially designated by a state as having particular environmental or ecological significance
and identified by the District Engineer after notice and opportunity for public comment. The District Engineer may
also designate additional critical resource waters after notice and opportunity for comment.
a. Except as noted below, discharges of dredged or fill material into waters of the US are not authorized
by NWPs 7, 12, 14, 16, 17, 21, 29, 31, 35, 39, 40, 42, 43, and 44 for any activity within, or directly affecting, critical
resource waters, including wetlands adjacent to such waters. Discharges of dredged or fill materials into waters of the
US may be authorized by the above NWPs in National Wild and Scenic Rivers if the activity complies with General
Condition 7. Further, such discharges may be authorized in designated critical habitat for Federally listed threatened
9
or endangered species if the activity complies with General Condition 11 and the USFWS or the NMFS has
concurred in a determination of compliance with this condition.
b. For NWPs 3, 8, 10, 13, 15, 18, 19, 22, 23, 25, 27, 28, 30, 33, 34, 36, 37, and 38, notification is
required in accordance with General Condition 13, for any activity proposed in the designated critical resource
waters including wetlands adjacent to those waters. The District Engineer may authorize activities under these NWPs
only after it is determined that the impacts to the critical resource waters will be no more than minimal.
26. Fills Within 100-Year Floodplains. For purposes of this General Condition, 100-year floodplains will be
identified through the existing Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps or
FEMA-approved local floodplain maps.
a. Discharges in Floodplain; Below Headwaters. Discharges of dredged or fill material into waters of the
US within the mapped 100year floodplain, below headwaters (i.e. five cfs), resulting in permanent above-grade fills,
are not authorized by NWPs 39, 40, 42, 43, and 44.
b. Discharges in Floodway; Above Headwaters. Discharges of dredged or fill material into waters of the
US within the FEMA or locally mapped floodway, resulting in permanent above-grade fills, are not authorized by
NWPs 39, 40, 42, and 44.
c. The permittee must comply with any applicable FEMA-approved state or local floodplain management
requirements.
27. Construction Period. For activities that have not been verified by the Corps and the project was
commenced or under contract to commence by the expiration date of the NWP (or modification or revocation date),
the work must be completed within 12-months after such date (including any modification that affects the project).
For activities that have been verified and the project was commenced or under contract to commence within
the verification period, the work must be completed by the date determined by the Corps.
For projects that have been verified by the Corps, an extension of a Corps approved completion date maybe
requested. This request must be submitted at least one month before the previously approved completion date.
FURTHER INFORMATION
1. District Engineers have authority to determine if an activity complies with the terms and conditions of a NWP.
2. NWPs do not obviate the need to obtain other Federal, State, or local permits, approvals, or authorizations
required by law.
3. NWPs do not'grant any property rights or exclusive. privileges.
4. NWPs do not authorize any injury to the property or rights of others.
5. NWPs do not authorize interference with any existing or proposed Federal project.
DEFINITIONS
Best Management Practices (BMPs): BMPs are policies, practices, procedures, or structures implemented to
mitigate the adverse environmental effects on surface water quality resulting from development. BMPs are
categorized as structural or nonstructural. A BMP policy may affect the limits on a development.
Compensatory Mitigation: For purposes of Section 10/404, compensatory mitigation is the restoration, creation,
enhancement, or in exceptional circumstances, preservation of wetlands and/or other aquatic resources for the
10
purpose of compensating for unavoidable adverse impacts, which remain, after all appropriate and practicable
avoidance and minimization has been achieved.
Creation: The establishment of a wetland or other aquatic resource where one did not formerly exist.
Enhancement. Activities conducted in existing wetlands or other aquatic resources that increase one or more aquatic
functions.
phemeral Stream: An ephemeral stream hasllowing water only during and for a short duration after, precipitation
events in atypical year. Ephemeral stream beds are located above the water table year-round. Groundwater is not a
source of water for the stream. Runnoff from rainfall is the primary source of water for stream flow.
Farm Tract. A unit of contiguous land under one ownership that is operated as a farm or part of a farm.
Flood Fringe: That portion of the 100-year floodplain outside of the floodway (often referred to as "floodway
fringe").
Floodway: The area regulated by Federal, state, or local requirements to provide for the discharge of the base flood
so the cumulative increase in water surface elevation is no more than a designated amount (not to exceed one foot as
set by the National Flood Insurance Program) within the 100-year floodplain.
Independent Utility: A test to determine what constitutes a single and complete project in the Corps regulatory
program. A project is considered to have independent utility if it would be constructed absent the construction of
other projects in the project area. Portions of a multi-phase project that depend upon other phases of the project do
not have independent utility. Phases of a project that would be constructed even if the other phases were not built
can be considered as separate single and complete projects with independent utility.
Intermittent Stream: An intermittent stream has flowing water during certain times of the year, when groundwater
provides water for stream flow. During dry periods, intermittent streams may not have flowing water. Runoff from
rainfall is a supplemental source of water for stream flow.
Loss o waters ofhe US: Waters of the US that include the filled area and other waters that are permanently
adversely affected by flooding, excavation, or drainage because of the regulated activity. Permanent adverse effects
include permanent above-grade, at-grade, or below-grade fills that change an aquatic area to dry land, increase the
bottom elevation of a waterbody, or change the use of a waterbody. The acreage of loss of waters of the US is the
threshold measurement of the impact to existing waters for determining whether a project may qualify for a NWP; it
is not a net threshold that is calculated after considering compensatory mitigation that may be used to offset losses of
aquatic functions and values. The loss of stream bed includes the linear feet of stream bed that is filled or excavated.
Waters of the US temporarily filled, flooded, excavated, or drained, but restored to preconstruction contours and
elevations after construction, are not included in the measurement of loss of waters of the US. Impacts to ephemeral
waters are only not included in the acreage or linear foot measurements of loss of waters of the US or loss of stream
bed, for the purpose of determining compliance with the threshold limits of the NWPs.
Non-tidal Metland. An area that, during a year with normal patterns of precipitation has standing or flowing water
for sufficient duration to establish an ordinary high water mark. Aquatic vegetation within the area of standing or
flowing water is either non-emergent, sparse, or absent. Vegetated shallows are considered to be open waters. The
term "open water" includes rivers, streams, lakes, and ponds. For the purposes of the NWPs, this term does not
include ephemeral waters.
Perennial Stream: A perennial stream has flowing water year-round during a typical year. The water table is
located above the stream bed for the most of the year. Groundwater is the primary source of water for stream flow.
Runoff from rainfall is a supplemental source of water for stream flow.
Permanent Above-grade Fill: A discharge of dredged or fill material into waters of the US, including wetlands, that
results in a substantial increase in ground elevation and permanently converts part or all of the waterbody to dry land.
Structural fills authorized by NWPs 3, 25, 36, etc. are not included.
Preservation: The protection of ecologically important wetlands or other aquatic resources in perpetuity through the
11
implementation of appropriate legal and physical mechanisms. Preservation may include protection of upland areas
adjacent to wetlands as necessary to ensure protection and/or enhancement of the overall aquatic ecosystem.
Restoration: Re-establishment of wetland and/or other aquatic resource characteristics and function(s) at a site
where they have ceased to exist, or exist in a substantially degraded state.
Riffle and Pool Complex: Riffle and pool complexes are special aquatic sites under the 404(b)(1) Guidelines. Riffle
and pool complexes sometimes characterize steep gradient sections of streams. Such stream sections are
recognizable by their hydraulic characteristics. The rapid movement of water over a course substrate in riffles results
in a rough flow, a turbulent surface and high dissolved oxygen levels in the water. Pools are deeper areas associated
with riffles. A slower stream velocity, a streaming flow, a smooth surface, and a finer substrate characterize pools.
Single and Complete Proiect: The term "single and complete project" is defined at 33 CFR 330.2(i) as the total
project proposed or accomplished by one owner/developer or partnership or other association of owners/developers
(see definition of independent utility). For linear projects, the "single and complete project" (i.e., a single and
complete crossing) will apply to each crossing of a separate water of the US (i.e., a single waterbody) at that
location. An exception is for linear projects crossing a single waterbody several times at separate and distant
locations; each crossing is considered a single and complete project. However, individual channels in a braided
stream or river, or individual arms of a large, irregularly shaped wetland or lake, etc., are not separate waterbodies.
Stormwater Management: Stormwater management is the mechanism for controlling stormwater runoff for the
purposes of reducing downstream erosion, water quality degradation, and flooding and mitigating the adverse effects
of changes in land use on the aquatic environment.
Stormwater Management Facilities: Stormwater management facilities are those facilities, including but not limited
to, stormwater retention and detention ponds and BMPs, which retain water for a period of time to control runoff
and/or improve the quality (i.e., by reducing the concentration of nutrients, sediments, hazardous substances and
other pollutants) of Stormwater runoff.
Stream Channelization: The manipulation of a stream channel to increase the rate of water flow through the stream
channel. Manipulation may include deepening, widening, straightening, armoring, or other activities that change the
stream cross-section or other aspects of stream channel geometry to increase the rate of water flow through the
stream channel. A channelized stream remains a water of the US, despite the modifications to increase the rate of
water flow.
Tidal Wetland: A tidal wetland is a wetland (i.e., water of the US) that is inundated by tidal waters. The definitions
of a wetland and tidal waters can be found at 33 CFR 328.3(b) and 33 CFR 328.3(f), respectively. Tidal waters rise
and fall in a predictable and measurable rhythm or cycle due to the gravitational pulls of the moon and sun. Tidal
waters end where the rise and fall of the water surface can no longer be practically measured in a predictable rhythm
due to masking by other waters, wind, or other effects. Tidal wetlands are located channelward of the high tide line
(i.e., spring high tide line) and are inundated by tidal waters two times per lunar month, during spring high tides.
Vegetated Bum: A vegetated upland or wetland area next to rivers, streams, lakes, or other open waters, which
separates the open water from developed areas, including agricultural land. Vegetated buffers provide a variety of
aquatic habitat functions and values (e.g., aquatic habitat for fish and other aquatic organisms, moderation of water
temperature changes, and detritus for aquatic food webs) and help improve or maintain local water quality. A
vegetated buffer can be established by maintaining an existing vegetated area or planting native trees, shrubs, and
herbaceous plants on land next to openwaters. Mowed lawns are not considered vegetated buffers because they
provide little or no aquatic habitat functions and values. The establishment and maintenance of vegetated buffers I a
method of compensatory mitigation that can be used in conjunction with the restoration, creation, enhancement or .
preservation of aquatic habitats to ensure that activities authorized by NWPs result in minimal adverse effects to the
aquatic environment. (See General Condition 19.)
Vegetated Shallows: Vegetated shallows are special aquatic sites under the 404(b)(1) Guidelines. They are areas
that are permanently inundated and under normal circumstances have rooted aquatic vegetation, such as seagrasses in
marine and estuarine systems and a variety of vascular rooted plants in freshwater systems.
12
iYaterbo : A waterbody is any area that in a normal year has water flowing or standing above ground to the extent
that evidence of an ordinary high water mark is established. Wetlands
contiguous to the waterbody are considered part of the waterbody.
FINAL REGIONAL CONDITIONS FOR NATIONWIDE PERMITS IN THE WILMINGTON DISTRICT
1. Waters Excluded from NWP or Subject to Additional Notification Requirements:
a. The Corps identified waters that will be excluded from use of this NWP. These waters are:
1. Discharges into Waters of the United States designated by either the North Carolina Division of Marine
Fisheries (NCDMF) or the North Carolina Wildlife Resources Commission (NCWRC) as anadromous fish spawning
area are prohibited during the period between February 15 and June 30, without prior written approval from
NCDMF or NCWRC and the Corps.
2. Discharges into Waters of the United States designated as sturgeon spawning areas are prohibited
during the period between February 1 and June 30, without prior written approval from the National Marine
Fisheries Service (NMFS).
b. The Corps identified waters that will be subject to additional notification requirements for activities
authorized by this NWP. These waters are:
1. Prior to the use of any NWP in any of the following North Carolina designated waters, applicants must
comply with Nationwide Permit General Condition 13. In addition, the applicant must furnish a written statement of
compliance with all of the conditions of the applicable Nationwide Permit. The North Carolina designated waters
that require additional notification requirements are "Outstanding Resource Waters" (ORW) and "High Quality
Waters" (HQW) (as defined by the North Carolina Division of Water Quality), or "Inland Primary Nursery Areas".
(IPNA) (as defined by the North Carolina Wildlife Resources Commission), or contiguous wetlands (as defined by
the North Carolina Division of Water Quality), or "Primary Nursery Areas" (PNA) (as defined by the North Carolina
Division of Marine Fisheries).
2. Applicants for any NWP in a designated "Area of Environmental Concern" (AEC) in the twenty (20)
coastal counties of Eastern North Carolina covered by the North Carolina Coastal Area Management Act (CAMA),
must also obtain the required CAMA permit. Construction activities may not commence until a copy of the
approved CAMA permit is furnished to the appropriate Wilmington District Regulatory Field Office (Wilmington
Field Office - P.O. Box 1890, Wilmington, NC 28402 or Washington Field Office - P.O. Box 1000, Washington,
NC 27889) for authorization to begin work.
3. Prior to the use of any NWP on a Barrier Island of North Carolina, applicants must comply with
Nationwide Permit General Condition 13. In addition, the applicant shall furnish a written statement of compliance
with all of the conditions listed of the applicable Nationwide Permit.
4. Prior to the use of any NWP in a "Mountain or Piedmont Bog" of North Carolina, applicants shall
comply with Nationwide Permit General Condition 13. In addition, the applicant shall furnish a written statement of
compliance with all of the conditions listed of the applicable NWP.
Note: The following wetland community types identified in the N.C. Natural Heritage Program document,
"Classification of Natural communities of North Carolina (Michael P. Schafale and Alan S. Weakley, 1990), are
subject to this regional condition.
Mountain Boo Piedmont Boas
Swamp Forest-Bog Complex Upland Depression Swamp Forest
Swamp Forest-Bog Complex (Spruce Subtype)
Southern Appalachian Bog (Northern Subtype)
Southern Appalachian Bog (Southern Subtype)
Southern Appalachian Fen
13
5. Prior to the use of any NWP in Mountain Trout Waters within twenty-five (25) designated counties of
North Carolina, applicants shall comply with Nationwide General Condition 13. In addition, the applicant shall
furnish a written statement of compliance with all of the conditions listed of the applicable NWP. Notification will
include a letter of comments and recommendations from the North Carolina Wildlife Resources Commission
(NCWRC), the location of work, a delineation of wetlands, a discussion of alternatives to working in the Mountain
Trout Waters, why other alternatives were not selected, and a plan to provide compensatory mitigation for all
unavoidable adverse impacts to the Mountain Trout Waters. To facilitate coordination with the NCWRC, the
proponent may provide a copy of the notification to the NCWRC concurrent with the notification to the District
Engineer. The NCWRC will respond both to the proponent and directly to the Corps of Engineers.
The twenty-five (25) designated counties are:
Alleghany Ashe Avery Yancey
Buncombe Burke Caldwell Wilkes
Cherokee Clay Graham Swain
Haywood Henderson Jackson Surry
Macon Madison McDowell Stokes
Mitchell Polk Rutherford
Transylvania Watauga
6. Applicants shall notify the NCDENR Shellfish Sanitation Section prior to dredging in or removing
sediment from an area closed to shell fishing where the effluent may be released to an area open for shell fishing or
swimming in order to avoid contamination of the disposal area and allow a temporary shellfish closure to be made.
Any disposal of sand to the beach should occur between November 1 and April 30 when recreational usage is low.
Only clean sand should be used and no dredged sand from closed shell fishing areas. If beach disposal was to occur
at times other than stated above or if sand from a closed shell fishing area is to be used, a swim advisory shall be
posted and a press release shall be made. NCDENR Shellfish Sanitation Section must be notified before
commencing this activity.
2. List of Final Corps Regional Modifications and Conditions for All Nationwide Permits
a. Individual or multiple NWPs may not be used for activities that result in the cumulative loss or degradation
of greater than 300 total linear feet of perennial streambed or intermittent streambed that exhibits important aquatic .
function(s).
b. Prior to the use of any NWP (except 13, 27, and 39) for any activity that has more than a total of 150 total
linear feet of perennial streambed impacts or intermittent streambed impacts (if the intermittent stream has important
aquatic function), the applicant must comply with Nationwide Permit General Condition 13. In addition, the
applicant shall furnish a written statement of compliance with all of the conditions listed of the applicable NWP.
Compensatory mitigation is typically required for any impact that requires such notification. [Note: The Corps uses
the Intermittent Channel Evaluation Form, located with Permit Information on the Regulatory Program Web Site, to
aid in the determination of the intermittent channel stream status. Also, NWPs 13, 27 and 39 have specific reporting
requirements.]
c. For all Nationwide Permits which allow the use of concrete as a building material, measures will be taken to
prevent live or fresh concrete, including bags of uncured concrete, from coming into contact with waters of the state
until the concrete has hardened.
. d. For all Nationwide Permits that allow for the use of riprap material for bank stabilization, filter cloth must be
placed underneath the riprap as an additional requirement of its use in North Carolina waters.
e. For all NWPs that involve the construction of culverts, measures will be included in the construction that will
promote the safe passage of fish and other aquatic organisms.
All culverts in the 20 CAMA coastal counties must be buried to a depth of one foot below the bed of the stream or
Roadway
Approach Fill Bankfull
Culvert buried
below streambed
to appropriate
Stream depth
Bottom
wetland. For all culvert construction activities, the dimension, pattern, and profile of the stream, (above and below a
pipe or culvert), should not be modified by widening the stream channel or by reducing the depth of the stream.
Culvert inverts will be buried at least one foot below the bed of the stream for culverts greater than 48 inches in
diameter. For culverts 48 inches in diameter or smaller, culverts must be buried below the bed of the stream to a
depth equal to or greater than 20 percent of the diameter of the culvert. Bottomless arch culverts will satisfy this
condition. A waiver from the depth specifications in this Regional Condition may be requested in writing. The
waiver will only be issued if it can be demonstrated that the impacts of complying with this Regional Condition
would result in more adverse impacts to the aquatic environment.
3. Additional Regional Conditions Applicable to this Nationwide Permit
a. Discharges in wetlands and in perennial streams for stormwater management facilities are prohibited under
this NWT.
b. Single-family recreational facilities are not authorized under NWP 39.
Recreational facilities, if they are incorporated into and serving an entire residential, commercial, or institutional
development, can be authorized by this NWP.
NORTH CAROLINA DIVISION OF WATER QUALITY
GENERAL CERTIFICATION CONDITIONS
GS3362
1. Enumerating and Reporting of Impacts:
a. Streams - Impacts to streams as determined by the Division of Water Quality shall be measured as length of
the centerline of the normal flow channel. Permanent and/or temporary stream impacts shall be enumerated on the
entire project for all impacts regardless of which 404 Nationwide Permits are used. Stream relocations and
streambed and/or bank hardening are considered to be permanent stream impacts. Any activity that results in a loss
of use of stream functions including but not limited to filling, relocating, flooding, excavation, dredging and
complete shading shall be considered stream impacts. Enumeration of impacts to streams shall include streams
enclosed by bottomless culverts, bottomless arches or other spanning structures when a 404 Permit is used anywhere
in a project unless the entire structure (including construction impacts) spans the entire bed and both banks of the
stream, is only used for a road, driveway or path crossing, and is not mitered to follow the stream pattern. Impacts
for dam footprints and flooding will count toward the threshold for stream impacts, but flooding upstream of the dam
will not (as long as no filling, excavation, relocation or other modification of the existing stream dimension, pattern
or proflle occurs) count towards mitigation.
b. Wetlands - Impacts to wetlands as determined by the Division of Water Quality shall be measured as area.
Permanent and/or temporary wetland impacts shall be enumerated on the entire project for all impacts regardless of
which 404 Nationwide Permits are used. Any activity that results in a loss of use of wetland functions including but
not limited to filling, excavating, draining, and flooding shall be considered wetland impacts. Enumeration of
impacts to wetlands shall include activities that change the hydrology of a wetland when a 404 Permit is used
anywhere in a project.
c. Lakes and Ponds - Impacts to waters other than streams and wetlands as determined by the Division of
Water Quality shall be measured as area. Permanent and/or temporary water impacts shall be enumerated on the
entire project for all impacts proposed regardless of which 404 Nationwide Permits are used. Any activity that results
in a loss of use of aquatic functions including but not limited to filling and dredging shall be considered waters
impacts. Application Thresholds - Stream, wetland and water impacts that exceed any of the thresholds below
require a complete application and written concurrence to use this Certification:
Total stream impacts of greater or equal to 150 cumulative feet of stream length for the entire project
require written notification to and approval by the Division of Water Quality, and/or
Impacts to waters of equal to or greater than 1/3 of an acre require written notification to and approval by
the Division of Water Quality, and/or Wetland impacts of greater or equal to 1/3 of an acre east of 1-95 and 1/10 of
15
an acre west of I-95 require written notification to and approval by the Division of Water Quality except as specified
below. Any impacts to wetlands adjacent to waters designated as ORW, SA, WS-I, WS-II or Trout or are designated
as a North Carolina or National Wild and Scenic River and wetlands classified as SWL and/or UWL as well as
wetlands described in 15A NCAC 2H .0506 (e) require a complete application and written concurrence from the
Division of Water Quality to use this Certification. These thresholds apply for the entire project regardless of the
number of Nationwide Permits applicable to the Certification that are issued by the USACE for the project;
Written notification to DWQ is required for all applications that propose to use Nationwide Permit 18. This
notification requirement will be satisfied by providing two (2) copies of the PCN form to DWQ at the same time that
the PCN form is sent to the US Army Corps of Engineers. A formal application and fee is not required unless DWQ
decides that an Individual Certification will be required for the project. In this case, the applicant will be notified in
writing from DWQ within 30 days of the receipt of the written notification.
Proposed fill or substantial modification of any amount of wetlands classified in accordance with 15A
NCAC 2B .0101(e)(7) as Unique Wetlands (UWL) shall require written concurrence from the Division of Water
Quality;
2. Impacts to any stream length in the Neuse, Tar-Pamlico or Randleman River Basins (or any other major river
basins with Riparian Area Protection Rules [Buffer Rules] in effect at the time of application) requires written
concurrence for this Certification from DWQ in accordance with 15A NCAC 2B.0200. Activities listed as "exempt"
from these rules do not need to apply for written concurrence under this Certification. New development activities
located in the protected 50-foot wide riparian areas (whether jurisdictional wetlands or not) within the Neuse and
Tar-Pamlico. River Basins shall be limited to "uses" identified within and constructed in accordance with 15A NCAC
2B .0200. All new development shall be located, designed, constructed, and maintained to have minimal disturbance
to protect water quality to the maximum extent practicable through the use of best management practices;
3. Additional site-specific stormwater management requirements may be added to this Certification at DWQ's
discretion on a case-by-case basis for projects that have or are anticipated to have impervious cover of greater than
30 percent. Site-specific stormwater management shall be designed to remove 85% TSS according to the latest
version of DWQ's Stormwater Best Management Practices manual at a minimum. Additionally, in watersheds within
one mile and draining to 303(d) listed waters, as well as watersheds that are classified as nutrient sensitive waters
(NSW), water supply waters (WS), trout waters (Tr), high quality waters (HQW), and outstanding resource waters
(ORW), the Division shall require that extended detention wetlands, bio-retention areas, and ponds followed by
forested filter strips (designed according to latest version of the NC DENR Stormwater Best Management Practices
Manual) be constructed as part of the stormwater management plan when a site-specific stormwater management
plan is
required. For streams classified as Water Supply, High Quality Waters and Outstanding Resource Waters, post-
construction, on-site stormwater management shall be required as appropriate and as outlined in 15A NCAC 2B
.0104(m) and 211.1000 to .1007, respectively, in addition to that required in this General Certification. Alternative
designs may be requested by the applicant and will be reviewed on a case-by-case basis by the Division of Water
Quality.
Approval of stormwater management plans by the Division of Water Quality's other existing state stormwater
programs including appropriate local programs are sufficient to satisfy this Condition as long as the stormwater
management plans meet or exceed the design requirements specified in this condition. This condition applies unless
more stringent requirements are in effect from other state water quality programs.
Unless specified otherwise in the approval letter, the final, written stormwater management plan shall be
approved in writing by the Division of Water Quality's Wetlands Unit before the impacts specified in this
Certification occur.
The facilities must be designed to treat the runoff from the entire project, unless otherwise explicitly approved
by the Division of Water Quality.
Also, before any permanent building or other structure is occupied at the subject site, the facilities (as approved
by the Wetlands Unit) shall be constructed and operational, and the stormwater management plan (as approved by
the Wetlands Unit) shall be implemented.
16
The structural stormwater practices as approved by the Wetlands Unit as well as drainage patterns must be
maintained in perpetuity.
No changes to the structural stormwater practices shall be made without written authorization from the Division
of Water Quality.
4. Compensatory stream mitigation shall be required at a 1:1 ratio for all perennial and intermittent stream impacts
equal to or exceeding 150 feet and that require application to DWQ in watersheds classified as ORW, HQW, Tr,
WS-I and WS-II;
5. In accordance with North Carolina General Statute Section 143-215.3D(e), any application for a 401 Water
Quality. Certification must include the appropriate fee. If a project also requires a CAMA Permit, one payment to
both agencies shall be submitted and will be the higher of the two fees;
6. In accordance with 15A NCAC 2H .0506 (h) compensatory mitigation may be required for impacts to 150 linear
feet or more of streams and/or one acre or more of wetlands for an entire project. For linear public transportation
projects, impacts equal to or exceeding 150 feet per stream may require mitigation. In addition, buffer mitigation
may be required for any project with Riparian Area Protection Rules (Buffer Rules) in effect at the time of
application for buffer impacts resulting from activities classified as "allowable with mitigation" within the "Table of
Uses" section of the Buffer Rules or require a variance under the Buffer Rules. A determination of buffer; wetland
and stream mitigation requirements shall be made for any Certification for this Nationwide Permit. The most current
design and monitoring protocols from DWQ shall be followed and written plans submitted for DWQ approval as
required in those protocols. When compensatory mitigation is required for a project, the mitigation plans must be
approved by DWQ in writing before the impacts approved by the Certification occur, unless otherwise specified in
the approval letter. The mitigation plan must be implemented and/or constructed before any permanent building or
structure on site is occupied. In the case of public road projects, the mitigation plan must be implemented before the
road is opened to the traveling public. Please note that if a stream relocation is conducted as.a stream restoration as
defined in The Internal Technical Guide for Stream Mork. in North Carolina, April 2001, the restored length can be
used as compensatory mitigation for the impacts resulting from the relocation;
7. For any project involving re-alignment of streams, a stream relocation plan must be included with the 401
application for written DWQ approval. Relocated stream designs should include the same dimensions, patterns and
profiles as the existing channel (or a stable reference reach if the existing channel is unstable), to the maximum
extent practical. The new channel should be constructed in the dry and water shall not be turned into the new channel
until the banks are stabilized. Vegetation used for bank stabilization shall be limited to native woody species, and
should include establishment of a 30 foot wide wooded and an adjacent 20 foot wide vegetated buffer on both sides
of the relocated channel to the maximum extent practical. A transitional phase incorporating coir fiber and seedling
establishment is allowable. Also, rip-rap, A-Jacks, concrete, gabions or other hard structures may be allowed if it is
necessary to maintain the physical integrity of the stream, but the applicant must provide written justification and any
calculations used to determine the extent of rip-rap coverage requested. If suitable stream
mitigation is not practical on-site, then stream impact will need to be mitigated elsewhere. Please note that if a stream
relocation is conducted as a stream restoration as defined in The Internal
Technical Guide for Stream Mork in North Carolina, April 2001, the restored length can be used as compensatory
mitigation for the impacts resulting from the relocation;
8. Placement of culverts and other structures in waters, streams, and wetlands must be placed below the elevation of
the streambed to allow low flow passage of water and aquatic life unless it can be shown to DWQ that providing
passage would be impractical. Design and placement of culverts including open bottom or bottomless arch culverts
and other structures including temporary erosion control measures shall not be conducted in a manner that may result
in aggradation, degradation or significant changes in hydrology of wetlands or stream beds or banks, adjacent to or
upstream and down stream of the above structures. The applicant is required to provide evidence that the equilibrium
shall be maintained if requested to do so in writing by DWQ. Additionally, when roadways, causeways or other fill
projects are constructed across FEMA-designated floodways or wetlands, openings such as culverts or bridges must
be provided to maintain the natural hydrology of the system as well as prevent constriction of the floodway that may
result in aggradation, degradation or significant changes in hydrology of streams or wetlands;
9. That appropriate sediment and erosion control practices which equal or exceed those outlined in the most recent
17
version of the "North Carolina Sediment and Erosion Control Planning and Design Manual" or the "North Carolina.
Surface Mining Manual" whichever is more appropriate (available from the Division of Land Resources (DLR) in
the DENR Regional or Central Offices) shall be in full compliance with all specifications governing the proper.
design, installation and operation and maintenance of such Best Management Practices in order to assure compliance
with the appropriate turbidity water quality standard;
10. All sediment and erosion control measures placed in wetlands and waters shall be removed and the original
grade restored within two months after the Division of Land Resources has released the project;
11. That additional site-specific conditions may be added to projects proposed under this Certification in order to
ensure compliance with all applicable water quality and effluent standards;
12. Measures shall be taken to prevent live or fresh concrete from coming into contact with waters of the state until
the concrete has hardened;
13. If an environmental document is required, this Certification is not valid until a Finding of No Significant Impact
(FONSI) or Record of Decision (ROD) is issued by the State Clearinghouse;
14. If this Certification is used to access building sites, all lots owned by the applicant must be buildable without
additional fill beyond that explicitly allowed under other General Certifications. The applicant is required to provide
evidence that the lots are buildable without requiring additional impacts to wetlands, waters or buffers if required to
do so in writing by DWQ. For road construction purposes, this Certification shall only be utilized from natural high
ground to natural high ground;
15. Deed notifications or similar mechanisms shall be placed on all lots with remaining jurisdictional wetlands and
waters or areas within 50 feet of all streams and ponds. These mechanisms shall be put in place within 30 days of the
date of issuance of the 401 Certification letter or the issuance of the 404 Permit (whichever is later). A sample deed
notification format can be downloaded from the 40I/Wetlands Unit web site at http://h2o.enr.state.nc.us/ncwctlands.
DWQ shall be sent copies of all deed restrictions applied to these lots;
16. When written concurrence is required, the applicant is required to use the most recent version of the
Certification of Completion form to notify DWQ when all work included in the 401 Certification has been
completed;
17. Concurrence from DWQ that this Certification applies to an individual project shall expire three years from the
date of the cover letter from DWQ or on the same day as the expiration date of the corresponding Nationwide Permit
39, whichever is sooner.
NORTH CAROLINA DIVISION OF COASTAL MANAGEMENT
STATE CONSISTENCY
Consistent.
Citations:
2002 Nationwide Permits - Federal Register Notice 15 Jan 2002
2002 Nationwide Permits Corrections -. Federal Register Notice 13 Feb 2002
2002 Regional Conditions - Authorized 17 May 2002
18
Office Use Only: Form Version May 2002
USACE Action ID No. DWQ No.
(If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".)
1. Processing
1. Check all of the approval(s) requested for this project:
X Section 404 Permit ? Riparian or Watershed Buffer Rules
? Section 10 Permit ? Isolated Wetland Permit from DWQ
? 401 Water Quality Certification
2. Nationwide, Regional or General Permit Number(s) Requested: NWP #39
3. If this notification is solely a courtesy copy because written approval for the 401 Certification
is not required, check here: ?
4. If payment into the North Carolina Wetlands Restoration Program (NCWRP) is proposed for
mitigation of impacts (verify availability with NCWRP prior to submittal of PCN), complete
section VIII and check here: ?
5. If your project is located in any of North Carolina's twenty coastal counties (listed on page
4), and the project is within a North Carolina Division of Coastal Management Area of
Environmental Concern (see the top of page 2 for further details), check here: ?
II. Applicant Information
1. Owner/Applicant Information
Name: City of Albemarle
Mailing Address: 144 North Second St.
Telephone Number: 704-984-9405 Fax Number: 704-984-9406
E-mail Address:_ rallen(M.albemarle.nc.us
2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter
must be attached if the Agent has signatory authority for the owner/applicant.)
Name: NA
Company Affiliation:
Mailing Address:
Telephone Number: Fax Number:
E-mail Address:
Page 5 of 12
III. Project Information
Attach a vicinity map clearly showing the location of the property with respect to local
landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property
boundaries and development plans in relation to surrounding properties. Both the vicinity map
and site plan must include a scale and north arrow. The specific footprints of all buildings,
impervious surfaces, or other facilities must be included. If possible, the maps and plans should
include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property
boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion,
so long as the property is clearly defined. For administrative and distribution purposes, the
USACE requires information to be submitted on sheets no larger than 11 by 17-inch format;
however, DWQ may accept paperwork of any size. DWQ prefers full-size construction
drawings rather than a sequential sheet version of the full-size plans. If full-size plans are
reduced to a small scale such that the final version is illegible, the applicant will be informed that
the project has been placed on hold until decipherable maps are provided.
1. Name of project: Police substation addition to Fire Station Three (FS3
2. T.I.P. Project Number or State Project Number (NCDOT Only): N/A
3. Property Identification Number (Tax PIN): 654902584886
4. Location
County:_ Stanly Nearest Town: Albemarle
Subdivision name (include phase/lot number): N/A
Directions to site (include road numbers, landmarks, etc.): From Albemarle, head north on
HWY 52. Turn right at Northeast Connector (route 1534 • FS3 is approximately 500 feet on
the left.
5. Site coordinates, if available (UTM or Lat/Long): 35° 23' 9.35" N, 80° 11' 28.73" W
(Note - If project is linear, such as a road or utility line, attach a sheet that separately lists the
coordinates for each crossing of a distinct waterbody.)
6. Property size (acres): 65.34
7. Nearest body of water (stream/river/sound/ocean/lake): UT Little Long Creek
8. River Basin: Yadkin - Pee Dee
(Note - this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at httn://h2o.enr.state.nc.us/admin/mans/.)
9. Describe the existing conditions on the site and general land use in the vicinity of the project
at the time of this application: The site is already partially built upon for the existing fire
station. There is a small stream channel that crosses the property, near and parallel to XX
road. Upstream, immediately beyond the property, is mostly wooded, downstream is mostly
Page 6of12
developed. Some project-related impacts to the stream have already occurred (see attached
Natural Resources Investigation report).
10. Describe the overall project in detail, including the type of equipment to be used: The
proiect entails construction of an addition to the FS3 building to serve as a police substation.
Associated with the building modifications will be a handicapped entrance, an expansion of
the paved parking area to accommodate additional vehicle use (including handicapped
parking), and modifications to the site entrance for increased traffic. Building modification
construction will be fairly simple and small scale foundation work, framing and finishing.
Grading and paying for the parking area and site entrance will include use of relatively small-
size construction equipment (e.g., bucket loader, asphalt roller) and materials delivery trucks.
11. Explain the purpose of the proposed work: To establish a police substation presence to
serve the local community.
IV. Prior Project History
If jurisdictional determinations and/or permits have been requested and/or obtained for this
project (including all prior phases of the same subdivision) in the past, please explain. Include
the USACE Action ID Number, DWQ Project Number, application date, and date permits and
certifications were issued or withdrawn. Provide photocopies of previously issued permits,
certifications or other useful information. Describe previously approved wetland, stream and
buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project,
list and describe permits issued for prior segments of the same T.I.P. project, along with
construction schedules.
No prior action.
V. Future Project Plans
Are any future permit requests anticipated for this project? If so, describe the anticipated work,
and provide justification for the exclusion of this work from the current application.
No future permit requests anticipated.
VI. Proposed Impacts to Waters of the United States/Waters of the State
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
wetlands, open water, and stream channels associated with the project. The applicant must also
provide justification for these impacts in Section VII below. All proposed impacts, permanent
and temporary, must be listed herein, and must be clearly identifiable on an accompanying site
plan. All wetlands and waters, and all streams (intermittent and perennial) must be shown on a
delineation map, whether or not impacts are proposed to these systems. Wetland and stream
evaluation and delineation forms should be included as appropriate. Photographs may be
included at the applicant's discretion. If this proposed impact is strictly for wetland or stream
Page 7 of 12
mitigation, list and describe the impact in Section VIII below. If additional space is needed for
listing or description, please attach a separate sheet.
1. Provide a written description of the proposed impacts: To accommodate the needed
building and parking modifications, it is necessary to extend the existing entrance culvert an
additional 96 linear feet and pave over the new piping. The new piping will be dual 48 inch
concrete pipes, plus headwalls. 96 linear feet of the mina is new impact; also, 48 linear feet
of new piping will be installed to replace 48 linear feet of existing 12il2ing.
2. Individually list wetland impacts below: No wetland impacts
Wetland Impact
Site Number
indicate on ma
Type of Impact* Area of
Impact
acres Located within
100-year Floodplain**
es/no Distance to
Nearest Stream
(linear feet
Type of Wetland***

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: mechanized clearing, grading, fill,
excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding.
** 100-Year floodplains are identified through the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps
(FIRM), or FEMA-approved local floodplain maps. Maps are available through the FEMA Map Service Center at 1-800-358-9616, or
online at htttl://www.fcma,pov.
*** List a wetland type that best describes wetland to be impacted (e.g., freshwater/saltwater marsh, forested wetland, beaver pond,
Carolina Bay, bog, etc.) Indicate if wetland is isolated (determination of isolation to be made by USACE only).
List the total acreage (estimated) of all existing wetlands on the property:
Total area of wetland impact proposed:
3. Individually list all intermittent and perennial stream impacts below:
Stream Impact
Site Number
indicate on ma
Type of Impact* Length of
Impact
inear feet
Stream Name** Average Width
of Stream
Before Impact Perennial or
Intermittent?
leasespecify)
#1 culvert 96 UT Little Long Creek 10' channel USGS intermittent

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: culverts and associated rip-rap,
dams (separately list impacts due to both structure and flooding), relocation (include linear feet before and after, and net loss/gain),
stabilization activities (cement wall, rip-rap, crib wall, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is
proposed, plans and profiles showing the linear footprint for both the original and relocated streams must be included.
** Stream names can be found on USGS topographic maps. If a stream has no name, list as UT (unnamed tributary) to the nearest
downstream named stream into which it flows. USGS maps are available through the USGS at 1-800-358-9616, or online at
www.usgs.cov. Several intemet sites also allow direct download and printing of USGS maps (e.g., www,topozone.com,
www.mannuest.com etc.).
Cumulative impacts (linear distance in feet) to all streams on site: 96 linear feet
4. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.) below: No impacts
Page 8of12
Open Water Impact
Site Number
indicate on ma
Type of Impact* Area of
Impact
acres Name of Waterbod
y
(if applicable) Type of Waterbody
(lake, pond, estuary, sound,
bay, ocean, etc.

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging,
flooding, drainage, bulkheads, etc.
5. Pond Creation N/A
If construction of a pond is proposed, associated wetland and stream impacts should be
included above in the wetland and stream impact sections. Also, the proposed pond should
be described here and illustrated on any maps included with this application.
Pond to be created in (check all that apply): ? uplands ? stream ? wetlands
Describe the method of construction (e.g., dam/embankment, excavation, installation of
draw-down valve or spillway, etc.):
Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.):
Size of watershed draining to pond: Expected pond surface area:
VII. Impact Justification (Avoidance and Minimization)
Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide
information related to site constraints such as topography, building ordinances, accessibility, and
financial viability of the project. The applicant may attach drawings of alternative, lower-impact
site layouts, and explain why these design options were not feasible. Also discuss how impacts
were minimized once the desired site plan was developed. If applicable, discuss construction
techniques to be followed during construction to reduce impacts.
_ The nature of the site lavout, and the requirement for handicanned access. makes total
avoidance impossible. The entrance and parking area were configured to minimize impacts as
much as possible while providing adequate accessibility.
VIII. Mitigation
DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC
Division of Water Quality for projects involving greater than or equal to one acre of impacts to
freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial
streams.
USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide
Permits, published in the Federal Register on March 9, 2000, mitigation will be required when
necessary to ensure that adverse effects to the aquatic environment are minimal. Factors
including size and type of proposed impact and function and relative value of the impacted
aquatic resource will be considered in determining acceptability of appropriate and practicable
mitigation as proposed. Examples of mitigation that may be appropriate and practicable include,
but are not limited to: reducing the size of the project; establishing and maintaining wetland
Page 9 of 12
and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of
aquatic resource functions and values by creating, restoring, enhancing, or preserving similar
functions and values, preferable in the same watershed.
If mitigation is required for this project, a copy of the mitigation plan must be attached in order
for USACE or DWQ to consider the application complete for processing. Any application
lacking a required mitigation plan or NCWRP concurrence shall be placed on hold as
incomplete. An applicant may also choose to review the current guidelines for stream restoration
in DWQ's Draft Technical Guide for Stream Work in North Carolina, available at
hgp://h2o.enr.state.nc.us/ncwetiands/strmgide.html.
Provide a brief description of the proposed mitigation plan. The description should provide
as much information as possible, including, but not limited to: site location (attach directions
and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet)
of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view,
preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a
description of the current site conditions and proposed method of construction. Please attach
a separate sheet if more space is needed.
A natural resources investigation (see attached report) found that the stream channel
conditions adjacent to and downstream from the project were already significantly
compromised. The project's impacts will not significantly alter water quality or functional
habitat. As a measure of mitigation, though, it is proposed that the City perform an upstream
channel cleanup, including the removal of obstructions, debris and streambed paving,
Additionally, the City will establish some native, shrubby vegetation on the banks of the
channel at the site to reduce erosion and runoff. BMPs will be carefully implemented to
protect the channel during site construction.
2. Mitigation may also be made by payment into the North Carolina Wetlands Restoration
Program (NCWRP). Please note it is the applicant's responsibility to contact the NCWRP at
[phone] to determine availability and to request written approval of mitigation prior
to submittal of a PCN. For additional information regarding the application process for the
NCWRP, check the NCWRP website at http://h2o.enr.state.nc.us/wrp/index.htm. If use of
the NCWRP is proposed, please check the appropriate box on page three and provide the
following information:
Amount of stream mitigation requested (linear feet): N/A
Amount of buffer mitigation requested (square feet): N/A
Amount of Riparian wetland mitigation requested (acres): N/A
Amount of Non-riparian wetland mitigation requested (acres): N/A
Amount of Coastal wetland mitigation requested (acres): N/A
IX. Environmental Documentation (required by DWQ)
Does the project involve an expenditure of public (federal/state) funds or the use of public
(federal/state) land?
Page 10 of 12
Yes ? No ?
If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)?
Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA
coordinator at [phone] to review current thresholds for environmental documentation.
Yes ? No ?
If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a
copy of the NEPA or SEPA final approval letter.
Yes ? No ?
X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ)
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
required state and local buffers associated with the project. The applicant must also provide
justification for these impacts in Section VII above. All proposed impacts must be listed herein,
and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a
map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 2B .0250 (Randleman Rules and
Water Supply Buffer Requirements), or other (please identify )?
Yes ? No ? If you answered "yes", provide the following information:
Identify the square feet and acreage of impact to each zone of the riparian buffers. If buffer
mitigation is required calculate the required amount of mitigation by applying the buffer
multipliers.
Zone* Impact
(square feet Multiplier Required
Mitigation
1 3
2 1.5
Total
* Zone 1 extends out 30 feet perpendicular from near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.
If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation
of Property, Conservation Easement, Riparian Buffer Restoration / Enhancement, Preservation or
Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as
identified within 15A NCAC 2B .0242 or.0260.
Page 11 of 12
XI. Stormwater (required by DWQ)
Describe impervious acreage (both existing and proposed) versus total acreage on the site.
Discuss stormwater controls proposed in order to protect surface waters and wetlands
downstream from the property.
XII. Sewage Disposal (required by DWQ)
Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of
wastewater generated from the proposed project, or available capacity of the subject facility.
XIII. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A NCAC 2H.0500) or any Buffer Rules?
Yes ? No ?
Is this an after-the-fact permit application?
Yes ? No ?
XIV. Other Circumstances (Optional):
It is the applicant's responsibility to submit the application sufficiently in advance of desired
construction dates to allow processing time for these permits. However, an applicant may
choose to list constraints associated with construction or sequencing that may impose limits on
work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).
Z1 10 3
Applicant/Agent's Signature
(Agent's signature is valid only if an a
Date
letter from the applicant is provided.)
Page 12 of 12
FIRE STATION THREE
City of Albemarle, NC
NATURAL RESOURCES INVESTIGATIONS REPORT
September 2003
Prepared by:
WATER OAK
301 Water Oak Lane
Matthews, NC 28104
704-844-6750
FIRE STATION THREE
NATURAL RESOURCES INVESTIGATION
Background
X7>>
Q
WATER OAK
Fire Station Three (FS3) is located on the northwest corner of the intersection of Northeast
Connector and Northwoods Lane, near HWY 52 on the north side of the City of Albemarle, NC
(City). The City is proposing to construct an addition to FS3 to serve as a Police Department
sub-station. Anticipation of construction on the FS3 property prompted a move to claim build-
out area from a reach of an unnamed tributary to Little Long Creek that runs across FS3
property, near and somewhat parallel to Northwoods Lane (see Figures 1&2 below). The topo
map does not reflect changes since 1993; larger map views are provided in the Appendix.

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Figure 1. USGS Quad - New London 1993 Figure 2. To o zoom-FS3 location & stream
In an effort to prepare for building and parking construction, the City removed 48 linear feet of
existing stream channel piping and replaced it with 144 linear feet of piping. Thus there was a
net increase in stream channel piping impacts of 96 linear feet in the tributary stream channel
leading from the north entrance of FS3 to the culvert running under Northeast Connector. While
such placement of piping could possibly be permitted under the provisions of sections 401 and
404 of the Clean Water Act (CWA), it is necessary to comply with the approval conditions of the
appropriate regulatory entities, i.e., the North Carolina Division of Water Quality (DWQ) and the
U.S. Army Corps of Engineers (USACE). Towards that end, WATER OAK was requested to
assist in addressing this matter by investigating the site conditions and evaluating the prospective
construction considerations relative to the CWA permitting process. WATER OAK visited FS3
on July 25, 2003 and examined conditions at the site, and upstream and downstream.
Findings and Discussion
WATER OAK found two markedly distinct habitat conditions for the stream that flows across
the FS3 property, and that the point of division for these conditions is at the north entrance to
FS3. Such was the case even before the new piping was installed, and, whatever the final design
configurations, construction of the police substation will not significantly change matters.
2
Upstream from FS3 the riparian corridor is mostly mature forest, comprising canopy trees up to
30 inches diameter breast height. The species mix includes: northern red oak, white oak,
shagbark hickory, pignut hickory, tulip poplar, red maple, sweet-gum, mulberry, fringe tree,
flowering dogwood and more. A sewerline runs along the east side of the stream, but, despite
the right-of-way maintenance, this corridor remains an effective floodplain and wildlife edge
habitat. Though identified as an intermittent stream on the USGS topographic quad, the stream
has the appearance of a perennial; in either case, it is clearly a jurisdictional stream subject to the
provisions of CWA. The upstream channel is typically about six (6) feet wide with banks about
four (4) feet high. The stream itself runs very clear, typically several inches deep, across a
mostly gravel bed, and there are pools over 18 inches deep that harbor (among other aquatic
species) sunfish up to 4 inches long.
In contrast to the upstream conditions, beginning at the fire station the downstream riparian
corridor is mostly cleared of trees and passes through developed areas, including through
multiple road culverts. The first culvert is the long one running from the FS3 property and under
Northeast Connector; there are other piped sections further downstream. Long reaches of the
stream are through residential properties where even shrubby cover for the stream channel has
been cleared, and has apparently been so for years. Given these downstream conditions, the
placement of the additional piping in the channel across the FS3 property should not result in any
significant, direct aquatic species impacts. Fish movement from below Northeast Connector to
upstream past FS3 is already severely restricted. The upstream portion of this stream should still
function as a good quality aquatic habitat; the connection between this upstream reach of the
stream and Little Long Creek has already been significantly compromised by previous
construction, and the construction of the police substation is not likely to make much difference.
However, despite these considerations, it is still necessary to comply with the CWA and obtain
appropriate authorization before causing any further impacts to this stream.
Given the nature of the proposed project, i.e., construction of the police substation, it seems most
appropriate to apply for Nationwide Permit (NWP) #39 as authorization for any stream impacts.
NWP 39 is for "Residential, Commercial, and Institutional Developments" and can be utilized
for impacts up to 0.5 acres of wetlands and 300 feet of stream impacts. Certain general
conditions exist for utilizing any NWP, and there are specific conditions for utilizing NWP 39 in
North Carolina. The full text of both NWP 39 and the matching NC certification WQC #3402
are attached in the Appendix. Relative to the situation at FS3, two key conditions associated
with these authorizations are:
1. A Pre-construction Notification (PCN) must be submitted to and approved by the USACE
before any length of impacts to stream channels; and,
2. For any stream impacts equal to or greater than 150 feet, a PCN must additionally be
submitted to DWQ.
In light of the above conditions, and the present and planned modifications for the FS3 site, it is
necessary to submit a PCN to the USACE, but not DWQ. As mentioned, prior to the recent
modification of the FS3 entrance there already was 48 linear feet of pipe in the stream channel as
part of the entrance driveway. The recent modification of the entrance resulted in a net increase
of 96 linear feet, which is below the notification threshold for DWQ.
While the extent of impact is below the notification threshold for DWQ, it should be emphasized
that no amount of impact should have occurred without notification to and authorization from the
3
USACE, which is the lead agency. Before any further work is done with this project, a PCN
should be prepared and submitted to:
Mr. Steve Chapin
Asheville Regulatory Field Office
US Army Corps of Engineers
151 Patton Avenue, Room 208
Asheville, North Carolina 28801-5006
Mr. Chapin can be reached by phone at [phone], EXT 5.
Summary and Conclusion
Concrete piping was placed in a stream channel that runs across the City of Albemarle's Fire
Station Three property. The placement of concrete piping in the stream channel on the FS3
property should not have been done without submitting a PCN to, and receiving authorization
from, the USACE. Because the net length of new piping installed is 96 linear feet (i.e. less than
150 linear feet), it is not necessary to jointly submit the PCN to DWQ. For less than 150 feet of
stream impact, authorization under WQC 43402 is automatically conferred once authorization
has been granted by USACE for NWP #39.
To rectify the present situation, either 1) the piping should be removed from the stream channel
and the channel restored to its prior condition, or 2) the USACE should be formally notified with
a PCN, and no further impacts to the stream channel made until authorization is received. The
City has chosen to submit the PCN to the USACE and wait on taking any further action until
receiving word on whether authorization is granted. Should authorization be granted, and if
mitigation for the Project is necessary, than it is recommended that some simple measures be
taken to improve the quality of the upstream habitat, specifically the removal of obstructions,
trash, debris and paving in the channel. Also it will be important to protect downstream water
quality during construction through the careful implementation of Best Management Practices.
Additionally, it is recommended that some native shrubby vegetation be established on the
Project site's remaining reach of streambank for long-term minimization of erosion and runoff.
Please see Appendix for representative maps and photos, and the full text of NWP #39 and WQC
#3402. (* Note to USACE, this report is prepared both for the City's files and for submittal
with the PCN. The text of NWP #39 and WQC #3402 is not included with tl:e PCN submittal)
4

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01. View across Northeast Connector toward FS3 02. View upstream from NE Connector culvert

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03. Upstream view near pipe discharge point 04. Downstream view near pipe discharge point

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05. Downstream view near FS3 north entrance 06. Upstream view near FS3 north entrance

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07. Upstream from FS3 - riparian habitat 08. Upstream from FS3 - stream view 1
09. Upstream from FS3 - stream view 2 10. Downstream from FS3 - stream view I

11. Downstream from FS3 -

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User Name: sgcpe Date: u,,•16.03
Project: City of Albemarle FS 3 Time: 15:38:39
Network: 00 . Page:1
Rainfall Report
- -----------------------------------------------------------
Rainfall Type Eastern/Central
3ainfall Library ALBEMARLE
asternlCentral Precipitation
2yrl5min 0.46 in
?yrll5min 0.94 in
2yrl60min 1.68 in
?yr12hr 2.04 in
?yrl24hr 3.60 in
I00yrl5min 0.83 in
100yrll 5min 1.73 in
I00yrI60min 3.51 in
I00yrl2hr 4.68 in
00yrl24hr 11.52 in
iainfall Intensity (in/hr)
5 min 15 min 30 min 60 min 2 hr 24 hr
! yr 5.52 3.76 2.61 1.68 1.02 0.15
i yr 6.48 4.48 3.18 2.11 1.34 0.23
0 yr 7.20 5.02 3.60 2.42 1.56 0.29
:5 yr 8.26 5.80 4.19 2.85 1.86 0.37
;0 yr 9.09 . 6.41 4.66 3.19 2.10 0.42
00 yr 9.93 7.02 5.12 3.53 2.34 0.48
ME Values Intensity - BI(Tc + WE
B 0 E X Y
yr 53.12 11.39 0.81 40.98 •0.77
yr 49.42 10.52 0.74 38.32 •0.70
0 yr 49.84 10.15 0.71 39.66 •0.68
5 yr 52.44 9.82 0.69 43.14 •0.66
0 yr 55.02 9.62 0.67 46.26 .0.65
00 yr 57.76 9.47 0.66 49.51 .0.64
User Name: sgcpe
Project: City of Albemarle FS 3
Scenario: Albemarle FS3 25 Yr.
Date: 09-17-03
Time: 08:24:16
Page: 1
UNIT HYDROGRAPH REPORT
Hydrograph Number:l
Name: Albemarle FS3 Unit Hydrograph
Type: SCS Curvilinear
[UNIT HYDROGRAPH INFORMATION]
Peak Flow (Qp) _ 79.31 (cfs)
Time to Peak (Tp) = 86.96 (min)
Time of Base (Tb) = 434.8 0 (min)
Volume = 12.69 (ac-ft)
Shape Factor = 484.00
Time Step 5.00 (min)
Excess Rain = 1.00 (in)
Storm Duration 17.35 (min)
Lag Time 78.26
(min)
[BASIN INFORMATION]
[WEIGHTED WATERSHED AREA]
------------------------------------------------------
Overall Approximation 152.00 65
[TIME CONCENTRATION -- SCS Lag]
Channel Slope (S) = 0.02 (ft/ft)
Flow Length (L) = 5800.00 (ft)
Time of Concentration (Tc) = 130.44 (min)
[Unit Hydrograph Flow Values: Time vs. Flow]
[The
----- time interval is 5.00 min]
-

Time
----- ----------------------------
Interval Time (min)
------------------- -------------------
Flow (cfs)

1 ----------
5.00 -------------------
1.37
2 10.00 3.21
3 15.00 6.40
4 20.00 10.07
5 25.00 14.18
6 30.00 19.35
7 35.00 24.90
8 40.00 32.20
9 45.00 39.91-
10 50.00 48.58
11 55.00 56.47
12 60.00 63.76
Time Interval
----------- Time (min)
--------- Flow (cfs)

13 -------
65.00 ----------------------
69.18
14 70.00
74.00
15 75.00 76.73
16 80.00 78.68
17 85.00 79.13
18 90.00 79.04
19 95.00 78.58
20 100.00 _76.14
21 105.00 73.35
22 110.00 70.15
23 115.00 66.78
24 120.00 63.14
25 125.00 58.89
26 130.00 54.33
27 135.00 48.94
28 140.00 43.63
29 145.00 39.07
30 150.00 35.10
31 155.00 31.91
32 160.00 29.03
33 165.00 26.30
34 170.00 24.00
35 175.00 21.85
36 180.00 20.18
37 185.00 18.52
38 190.00 16.85
39 195.00 15.41
40 200.00 14.04
41 205.00 12.67
42 210.00 11.42
43 215.00
10.51
44 220.00 9.60
45 225.00 8.69
46 230.00 7.95
47 235.00 7.27
48 240.00 6.58
49 245.00 5.96
50 250.00 5.45
51 255.00 4.95
52 260.00 4.45
53 265.00 4.08
54 270.00 3.74
55 275.00 3.40
56 280.00 3.09
57 285.00 2.83
58 290.00 2.58
59 295.00 2.33
60 300.00 2.14
Time Interval
------ Time (min)
----------- Flow (cfs)

61 ------
305.00 --------------------------
1.96
62 310.00 1.78
63 315.00 1.61
64 320.00 1.48
65 325.00 1.34
66 330.00 1.20
67 335.00 1.11
68 340.00 -1.02
69 345.00 0.92
70 350.00 0.85
71 355.00 0.79
72 360.00 0.74
73 365.00 0.68
74 370.00 0.63
75 375.00 0.58
76 380.00 0.52
77 385.00 0.47
78 390.00 0.41
79 395.00 0.36
80 400.00 0.32
81 405.00 0,27
82 410.00 0.23
83 415.00 0.18
84 420.00 0.13
85 425.00 0.09
86 430.00 0.04
FLOOD HYDROGRAPH REPORT
Number Name Type Defined
----------------------------------
-------------
1 Albemarle FS3 Hydrograph Computed Flood Yea
FLOOD HYDROGRAPH REPORT
Hydrograph Number:
Name:
Type:
[HYDROGRAPH INFORMATION)
Peak Flow (Qp)
Time to Peak (Tp)
Time of Base (Tb)
Volume
Time Step
Flow Multiplier
1
Albemarle FS3 Hydrograph
Computed Flood
[UNIT HYDROGRAPH INFORMATION]
Number
Type
Peak Flow (Qp)
Time to Peak (Tp)
Time of Base (Tb)
Volume
Shape Factor
Time Step:
Excess Rain
Lag Time
162.08 (cfs)
795.00 (min)
= 1857.38 (min)
= 56.96 (ac-ft)
5.00 (min)
1.00
= 1
SCS Curvilinear
= 79.31 (cfs)
86.96 (min)
434.80 (min)
12.69. (ac-ft)
484.00
5.00 (min)
1.00 (in)
78.26 (min)
[BASIN INFORMATION)
[WEIGHTED WATERSHED AREA]
------------------------------------------------------
Description Area CN
------------------------------------------------------
<None>
------------------------------------------------------
Overall Approximation 152.00 65
(TIME CONCENTRATION -- User Defined)
Time of Concentration (Tc) = 130.44 (min)
[RAINFALL DESCRIPTION]
Distribution Type Synthetic
Total Precipitation 8.73 (in)
Return Period = 25 (yr)
Storm Duration 24.00 (hr)
[Unit Hydrograph Flow Values: Time vs. Flow]
[The time interval is 5.00 min]
-----------------------------------------------------
Time Interval Time (min) Flow (cfs)
1 5.00 1.37
2 10.00 3.21
3 15.00 6.40
4 20.00 10.07
5 25.00 14.18
6 30.00 19.35
7 35.00 24.90
8 40.00 32.20
9 45.00 39.91
10 50.00 48.58
11 55.00 56.47
12 60.00 63.76
13 65.00 69.18
14 70.00 74.00
15 75.00 76.73
16 80.00 78.68
17 85.00 79.13
18 90.00 79.04
19 95.00 78.58
20 100.00 76.14
21 105.00 73.35
22 110.00 70.15
23 115.00 66.78
24 120.00 63.14
25 125.00 58.89
26 130.00 54.33
[Unit Hydrograph Flow Values: Time vs. Flow]
[The time interval is 5.00 min]
---------------
Time Interval ----------------
Time (min) ----------------------
Flow (cfs)
27 135.00 48.94
28 140.00 43.63
29 145.00 39.07
30 150.00 35.10
31 155.00 31.91
32 160.00 :29.03
33 165.00 26.30
34 170.00 24.00
35 175.00 21.85
36 180.00 20.18
37 185.00 18.52
38 190.00 16.85
39 195.00 15.41
40 200.00 14.04
41 205.00 12.67
42 210.00 11.42
43 215.00 10.51
44 220.00 9.60
45 225.00 8.69
46 230.00 7.95
47 235.00 7.27
48 240.00 6.58
49 245.00 5.96
50 250.00 5.45
51 255.00 4.95
52 260.00 4.45
53 265.00 4.08
54 270.00 3.74
55 275.00 3.40
56 280.00 3.09
57 285.00 2.83
58 290.00 2.58
59 295.00 2.33
60 300.00 2.14 '
61 305.00 1.96
62 310.00 1.78
63 315.00 1.61
64 320.00 1.48
65 325.00 1.34
66 330.00 1.20
67 335.00 1.11
68 340.00 1.02
69 345.00 0,92
70 350.00 0.85
71 355.00 0,79
72 360.00 0.74
[Unit Hydrograph Flow Values: Time vs. Flow]
[The time interval is 5.00 min]
-----
----------
Time Interval -----------------
Time (min) ---------------------
Flow (cfs)
73 365.00 0.68
74 370:00 0.63
75 375.00 0.58
76 380.00 0.52
77 385.00 --0.47
78 390.00 0.41
79 395.00 0.36
80 400.00 0.32
81 405.00 0.27
82 410.00 0.23
83 415.00 0.18
84 420.00 0.13
85 425.00 0.09
86 430.00 0.04
87 434.80 0.00
(Hydrograph Flow Values: Time vs. Flow]
(TIME CONCENTRATION -- 5.00]
----------------------------------------
Time Time Incremental Cumulative Incremental Design
Interval Rainfall Rainfall Outflow Outflow
(min) (in) (in) (cfs) (cf s)
----------------------------------------------------------
FLOOD HYDROGRAPH REPORT
82
410.00
0.04
8.73
0.00 ----------------
0.00
83 415.00 0.00 8.73 0.00 0.01
84 420.00 0.00 8.73 0.01 0.01
85 425.00 •0.00 8.73 0.01 0.02-
86 430.00 0.00 8.73 0.01 0.03
87 435.00 0.00 8.73 0.02 0.05
88 440.00 0.00 8.73 0.02 0.07
89 445.00 0.00 8.73 0.03 0.10
90 450.00 0.00 8.73 0.04 0.13
91 455.00 0.00 8.73 0.05 0.18
92 460.00 0.00 8.73 0.05 0.24
93 465.00 0.00 8.73 0.07 0.30
94 470.00 0.00 8.73 0.08 0.38
95 475.00 0.00 8.73 0.09 0.47
96 480.00 0.00 8.73 0.10 0.57
97 485.00 0.00 8.73 0.11 0.68
98 490.00 0.00 8.73 0.13 0.80
99 495.00 0.00 8.73 0.14 0.94
100 500.00 0.00 8.73 0.15 1.09
101 505.00 0.00 8.73 0.16 1.25
102 510.00 0.00 8.73 0.18 1.43
103 515.00 0.00 8.73 0.19 1.62
104 520.00 0.00 8.73 0.20 1.82
105 525.00 0.00 8.73 0.22 2.04
106 530.00 0.00 8.73 0.22 2.26
107 535.00 0.00 8.73 0.24. 2.50
108 540.00 0.00 8.73 0.25 2.75
109 545.00 0.00 8.73 0.27 3.01
110 550.00 0.00 8.73 0.27 3.28
111 555.00 0.00 8.73 0.28 3.56

112
560.00
0.00
8.73
0.31 .
3.87
113 565.00 0.00 8.73 0.31 4.18
114 570.00 0.00 8.73 0.33 4.51
115 575.00 0.00 8.73 0.34 4.85
116 580.00 0.00 8.73 0.37 5.22
117 585.00 0.00 8.73 0.37 5.58
118 590.00 0.00 8.73 0.38 5.96
119 595.00 0.00 8.73 0.42 6.38
-----------
Time ---------
Time ---------------
Incremental ------------
Cumulative --------------
Incremental ----------
Design
Interval Rainfall Rainfall Outflow Outflow

-- ----- (min)
---------- (in)
-------------- (in)
------------- (cf s)
------------- (cf s)
----------
120 600.00 0.00 8.73 0.42 6.80
121 605.00 0.00 8.73 0.44 7.25
122 610.00 0.00 8.73 0.47 7.72
123 615.00 0.00 8.73__ 0.51 8.23
124 620.00 0.00 8.73 0.51 8.73
125 625.00 0.00 8.73 0.53 9.26
126 630.00 0.00 8.73 0.60 9.86
127 635.00 0.00 8.73 0.60 10.46
128 640.00 0.00 8.73 0.64 11.10
129 645.00 0.00 8.73 0.65 11.75
130 650.00 0.00 8.73 0.67 12.42
131 655.00 0.00 8.73 0.63 13.05
132 660.00 0.00 8.73 0.64 13.69
133 665.00 0.00 8.73 0.81 14.50
134 670.00 0.00 8.73 0.82 15.32
135 675.00 0.00 8:73 0.92 16.24
136 680.00 0.00 8.73 1.08 17.32
137 685.00 0.00 8.73 1.23 18.55
138 690.00 0.00 8.73 1.38 19.93
139 695.00 0.00 8.73 1.80 21.73
140 700.00 0.00 8.73 3.07 24.80
141 705.00 0.00 8.73 3.80 28.60
142 710.00 0.00 8.73 4.96 33.56
143 715.00 0.00 8.73 5.95 39.51
144 720.00 0.00 8.73 6.81 46.32
145 725.00 0.00 8.73 7.95 54.26
146 730.00 0.00 8.73 8.80 63.06
147 735.00 0.00 8.73 10.29 73.34
148 740.00 0.00 8.73 10.94 84.28
149 745.00 0.00 8.73 11.65 95.94
150 750.00 0.00 8.73 11.52 107.46
151 755.00 0.00 8.73 11.04 118.50
152 760.00 0.00 8.73 9.85 128.35
153 765.00 0.00 8.73 9.05 137.40
154 770.00 0.00 8.73 7.66 145.06
155 775.00 0.00 8.73 6.21 151.27
156 780.00 0.00 8.73 4.78 156.05
157 785.00 0.00 8.73 3.63 159.68'
158 790.00 0.00 8.73 2.36 162.04
159 795.00 0.00 8.73 0.04 162.08
160 800.00 0.00 8.73 -0.84 161.24
161 805.00 0.00 8.73 -1.57 159.66
162 810.00 0.00 8.73 -2.78 156.88
163 815.00 0.00 8.73 -3.68 153.20

Time
Time ---
Incremental ------------
Cumulative --------------
Incremental ---------
Design
Interval Rainfall Rainfall Outflow Outflow
(min)
---- (in)
--------------- (in)
------------ (cfs)
-------------- (cfs)
----------
164 820.00 0.00 8.73 -4.33 148.87
165 825.00 0.00 8.73 -5.00 143.88
166 830.00 0.00 8.73 -6.06 137.82
167 835.00 0.00 8.73: -6.17 131.65
168 840.00 0.00 8.73 -5.76 125.89
169 845.00 0.00 8.73 -5.83 120.06
170 850.00 0.00 8.73 -5.52 114.54
171 855.00 0.00 8.73 -5.13 109.41
172 860.00 0.00 8.73 -4.97 104.44
173 865.00 0.00 8.73 -4.74 99.70
174 870.00 0.00 8.73 -4.40 95.30
175 875.00 0.00 8.73 -3.82 91.48
176 880.00 0.00 8.73 -3.85 87.63
177 885.00 0.00 8.73 -3.67 83.96
178 890.00 0.00 8.73 -3.18 80.77
179 895.00 0.00 8.73 -3.12 77.65
180 900.00 0.00 8.73 -3.13 74.52
181 905.00 0.00 8.73 -2.85 71.67
182 910.00 0.00 8.73 -2.40 69
27
183 915.00 0.00 8.73 -2.57 .
66.70
184 920.00 0.00 8.73 -2.48 64.22
185 925.00 0.00 8.73 -2.05 62
17
186 930.00 0.00 8.73 -2.03 .
60
14
187 935.00 0.00 8.73 -2.08 .
58.06
188 940.00 0.00 8.73 -1.85 56.21
189 945.00 0.00 8.73 -1.57 54.64
190 950.00 0.00 8.73 -1.73 52
91
191 955.00 0.00 8.73 -1.65 .
51
25
192 960.00 0.00 8.73 -1.32 .
49
93
193 965.00 0.00 8.73 -1.34 .
48.59
194 970.00 0.00 8.73 -1.38 47
21
195 975.00 0.00 8.73 -1.21 .
46
00
196 980.00 0.00 8.73 -1.03 .
44
97
197 985.00 0.00 8.73 -1.17 .
43
80
198 990.00 0.00 8.73 -1.11 .
42.69
199 995.00 0.00 8.73 -0.87 41
82
200 1000.00 0.00 8.73 -0.92 .
40
90
201 1005.00 0.00 8.73 -0.96 .
39
94
202 1010.00 0.00 8.73 -0.81 .
39
13
203 1015.00 0.00 8.73 -0.71 .
38
41
204 1020'.00 0.00 8.73 -0.82 .
37
59
205 1025.00 0.00 8.73 -0.78 .
36.81
206 1030.00 0.00 8.73 -0.59 36
22
207 1035.00 0.00 8.73 -0.66 .
35.56

Time
Time
Incremental ----------
Cumulative --------------
Incremental ----------
Design
Interval Rainfall Rainfall Outflow Outflow
(min)
-------- (in)
-------------- (in)
---- (cfs) (cfs)

208
1040.00
0.00 --------
8.73 --------------
-0.69 ----------
34.87
209 1045.00 0.00 8.73 -0.56 34.32
210 1050.00 0.00 8.73 -0.50 33.82
211 1055.00 0.00 8.73-- -0.59 33.23
212 1060.00 0.00 8.73 -0.56 32.67
213 1065.00 0.00 8.73 -0.42 32.25
214 1070.00 0.00 8.73 -0.50 31.76
215 1075.00 0.00 8.73 -0.52 31.23
216 1080.00 0.00 8.73 -0.42 30.82
217 1085.00 0.00 8.73 -0.40 30.42
218 1090.00 0.00 8.73 -0.47 29.95
219 1095.00 0.00 8.73 -0.44 29.51
220 1100.00 0.00 8.73 -0.33 29.17
221 1105.00 0.00 8.73 -0.41 28.76
222 1110.00 0.00 8.73 -0.43 28.33
223 1115.00 0.00 8.73 -0.33 28.00
224 1120.00 0.00 8.73 -0.33 27.67
225 1125.00 0.00 8.73 -0.39 27.28
226 1130.00 0.00 8.73 -0.35 26.93
227 1135.00 0.00 8.73 -0.23 26.70
228 1140.00 0.00 8.73 -0.32 26.38
229 1145.00 0.00 8.73 -0.33 26.05
230 1150.00 0.00 8.73 -0,22 25,82
231 1155.00 0.00 8.73 -0.24 25.59
232 1160.00 0.00 8.73 -0.28 25.30
233 1165.00 0.00 8.73 -0.25 25.05
234 1170.00 0.00 8.73 -0.17 24.88
235 1175.00 0.00 8.73 -0.26 24.63
236 1180.00 0.00 8.73 -0.26 24.36
237 1185.00 0.00 8.73 -0.17 24.19
238 1190.00 0.00 8.73 -0.20 24.00
239 1195.00 0.00 8.73 -0.23 23.77
240 1200.00 0.00 8.73 -0.20 23.56
241 1205.00 0.00 8.73 -0.14 23.43
242 1210.00 0.00 8.73 -0.23 23.20
243 1215.00 0.00 8.73 -0.22 22.98
244 1220.00 0.00 8.73 -0.14 22.84
245 1225.00 0.00 8.73 -0.17 22.67
246 1230.00 0.00 8.73 -0.20 22.47
247 1235.00 0.00 8.73 -0.17 22.30
248 1240.00 0.00 8.73 -0.11 22,19
249 1245.00 0.00 8.73 -0.20 21,99
250 1250.00 0.00 8.73 -0.19 21.80
251 1255.00 0.00 8.73 -0.11 21.68
-
Time -----------
Time --------------
Incremental ------------
Cumulative --------------
Incremental ----------
Design
Interval Rainfall Rainfall Outflow Outflow

- (min)
----------- (in)
-------------- (in)
------------- (cfs)
------------- (cfs)
----------
252 1260.00 0.00 8.73 -0.15 21.53
253 1265.00 0.00 8.73 -0.18 21.35
254 1270.00 .0.00 8.73 -0.14 21.21
255 1275.00 0.00 8.73__ -0.10 21.11
256 1280.00 0.00 8.73 -0.18 20.93
257 1285.00 0.00 8.73 -0.17 20.77
258 1290.00 0.00 8.73 -0.09 20.67
259 1295.00 0.00 8.73 -0.14 20.54
260 1300.00 0.00 8.73 -0.16 20.37
261 1305.00 0.00 8.73 -0.12 20.26
262 1310.00 0.00 8.73 -0.09 20.17
263 1315.00 0.00 8.73 -0.16 20.01
264 1320.00 0.00 8.73 -0.15 19.86
265 1325.00 0.00 8.73 -0.08 19.78
266 1330.00 0.00 8.73 -0.13 19.66
267 1335..00 0.00 8.73 -0.15 19.51
268 1340.00 0.00 8.73 -0.10 19.41
269 1345.00 0.00 8.73 -0.09 19.33
270 1350.00 0.00 8.73 -0.14 19.19
271 1355.00 0.00 8.73 -0.13. 19.06
272 1360.00 0.00 8.73 -0.07 18.99
273 1365.00 0.00 8.73 -0.12 18.87
274 1370.00 0.00 8.73 -0.14 18.73
275 1375.00 0.00 8.73 -0.08 18.65
276 1380.00 0.00 8.73 -0.08 18.57
277 1385.00 0.00 8.73 -0.13 18.45
278 1390.00 0.00 8.73 -0.11 18.33
279 1395.00 0.00 8.73 -0.06 18.28
280 1400.00 0.00 8.73 -0.11 18.17
281 1405.00 0.00 8.73 -0.13 18.04
282 1410.00 0.00 8.73 -0.07 17.97
283 1415.00 0.00 .8.73 -0.08 17.90
284 1420.00 0.00 8.73 -0.11 17.78
285 1425.00 0.00 8.73 -0.12 17.66
286 1430.00 0.00 8.73 -0.10 17.57
287 1435.00 0.00 8.73 -0.18 17.38
288 1440.00 0.00 8.73 -0.22 17.16
289 1445.00 0.00 8.73 -0.21 16.95
290 1450.00 0.00 8.73 -0.27 16.68
291 1455.00 0.00 8.73 -0.36 16.32
292 1460.00 0.00 8.73 -0.41 15.91
293 1465.00 0.00 8.73 -0.44 15.48
294 1470.00 _ 0.00 8.73 -0.58 14.90
295 1475.00 0.00 8.73 -0.62 14.28
-----------
Time -----------
Time --------------
Incremental ------------
Cumulative -------------
Incremental ----------
Design
Interval Rainfall Rainfall Outflow Outflow

----------- (min)
----------- (in)
------------- (in)
------------- (cfs)
------------- (cfs)
----------
296 1480.00 0.00 .8.73 -0.65 13.63
297 1485.00 0.00 .6.73 -0.68 12.95
298 1490.00 0.00 8.73 -0.75 .12.19
299 1495.00 0.00 8.73: -0.74 11.45
300 1500.00 0.00 8.73 -0.71 10.74
301 1505.00 0.00 8.73 -0.76 9.98
302 1510.00 0.00 8.73 -0.75 9.23
303 1515.00 0.00 8.73 -0.70 8.53
304 1520.00 0.00 8.73 -0.68 7.85
305 1525.00 0.00 8.73 -0.67 7.19
306 1530.00 0.00 8.73 -0.62 6.56
307 1535.00 0.00 8.73 -0.57 5.99
308 1540.00 0.00 8.73 -0.56 5.43
309 1545.00 0.00 8.73 -0.53 4.90
310 1550.00 0.00 8.73 -0.45 4.45
311 1555.00 0.00 8.73 -0.41 4.04
312 1560.00 0.00 8.73 -0.38 3.67
313 1565.00 0.00 8.73 -0.33 3.34
314 1570.00 0.00 8.73 -0.29 3.05
315 1575.00 0.00 8.73 -0.28 2.78
316 1580.00 0.00 8.73 -0.26 2.52
317 1585.00 0.00 8.73 -0.21 2.31
318 1590.00 0.00 B.73 -0.20 2.10
319 1595.00 0.00 8.73 -0.20 1.90
320 1600.00 0.00 8.73 -0.17 1.73
321 1605.00 0.00 8.73 -0.15 1.58
322 1610.00 0.00 8.73 -0.15 1.43
323 1615.00 0.00 8.73 -0.14 1.30
324 1620.00 0.00 8.73 -0.11 1.19
325 1625.00 0.00 8.73 -0.11 1.08
326 1630.00 0.00 8.73 -0.11 0.97
327 1635.00 0.00 8.73 -0.09 0.89
328 1640.00 0.00 8.73 -0.08 0.81
329 1645.00 0.00 8.73 -0.08 0.73
330 1650.00 0.00 8.73 -0.07 0.66
331 1655.00 0.00 8.73 -0.06 0.60
332 1660.00 0.00 8.73 -0.06 0.55
333 1665.00 0.00 8.73 -0.06 0.49
334 1670.00 0.00 8.73 -0.04 0.45
335 1675.00 0.00 8.73 -0.04 0.41
336 1680.00 0.00 8.73 -0.04 0.37
337 1685.00 0.00 8.73 -0.04 0.33
338 1690.00 0.00 8.73 -0.03 0.30
339 1695.00 0.00 8.73 -0.03 0.28
-----------
Time -----------
Time -------------
Incremental -------------
Cumulative -------------
Incremental ----------
Design
Interval Rainfall Rainfall Outflow Outflow

----------- (min)
----------- (in)
---------=--- (in)
------------- (cf s)
------------- (cfs)
----------
340 1700.00 0.00 8.73 -0.03 0.25
341 1705.00 0.00 8.73 -0.02 0.22
342 1710.00 0.00 8.73 -0.02 0.20
343 1715.00 0.00 8.73-7 -0.02 0.18
344 1720.00 0.00 8.73 -0.02 0.16
345 1725.00 0.00 8.73 -0.02 0.15
346 1730.00 0.00 8.73 -0.02 0.13
347 1735.00 0.00 8.73 -0.02 0.12.
348 1740.00 0.00 8.73 -0.01 0.11
349 1745.00 0.00 8.73 -0.01 0.10
350 1750.00 0.00 8.73 -0.01 0.09
351 1755.00 0.00 8.73 -0.01 0.08
352 1760.00 0.00 8.73 -0.01 0.07
353 1765.00 0.00 8.73 -0.01 0.06
354 1770.00 0.00 8.73. -0.01 0.05
355 1775.00 0.00 8.73 -0.01 0.05
356 1780.00 0.00 8.73 -0.01 0.04
357 1785.00 0.00 8.73 -0.01 0.03
358 1790.00 0.00 8.73 -0.00 0.03
359 1795.00 0.00 8.73 -0.00 0.02
360 1800.00 0.00 8.73 -0.00 0.02
361 1805.00 0.00 8.73 -0.00 0.01
362 1810.00 0.00 8.73 -0.00 0.01
363 1815.00 0.00 8.73 -0.00 0.01
364 1820.00 0.00 8.73 -0.00 0.01
365 1825.00 0.00 8.73 -0.00 0.00
User Name: sgcpe Date: 09.16.03
Project: City of Albemarle FS 3 Time: 15:32:06
Scenario: Albemarle FS3 25 Yr. Page:1
OUTLET STRUCTURE LISTING
-------------------- ---------
Number Name Type Defined
1 Albemarle FS3 Double 48" Culvert Yes
User Name: sgcpe Date: 09.16-03
Project: City of Albemarle FS 3 Time: 15:32:06
Scenario: Albemarle FS3 25 YK Page: 2
OUTLET STRUCTURE REPORT
Structure Number : 1
Typo : Circular Concrete wl square edge wl headwall
Name : Albemarle FS3 Double 48"
[RATING CURVE LIMIT]
Minimum Elevation
Maximum Elevation
Elevation Increment
100.00 (ft)
105.00 (ft)
0.20 (ft)
[OUTLET STRUCTURE INFORMATION]
Diameter - 4.00 (ft)
Invert Elevation - 100.00 (ft)
Pipe Length - 144.00 (ft)
Slope - 0.01 (ftlft)
Manning's n Value - 0.01
Orifice Coefficient - 0.60
Tailwater Elevation - 97.84 (ft)
Number of Barrels - 2
[UNSUBMERGED EQUATION]
HlDiam - HclDiam+K'(O1(A'Diam"0.5))"M-0.5•S
Coefficient K - 0.01
Coefficient M - 2.00
O Maximum - 87.96 (cfs)
[SUBMERGED EQUATION)
HlDiam - c'(01(A"Diam"0.5))"2+Y-0.5'S
Coefficient c - 0.04
Coefficient Y - 0.67
0 Minimum - 100.53 (cfs)
[DEFINITIONS]
H - Headwater depth above inlet control section invert, (ft)
Diam - Interior height of culvert barrel, (ft)
He - Specific head at critical depth (dc+Vc" 212g), (ft)
0 - Discharge, (cfs)
A - Full cross sectional area of culvert barrel, (sq ft)
S - Culvert barrel slope, (ftlft)
[MAXIMUM DISCHARGE]
O - 201.06 (cfs)
[CULVERT STAGE VS. DISCHARGE]
Elevation (ft) Stage (ft) Discharge (cfs)
--------------------------------------------------------------------------------
100.00 0.00 0.00
User Name: sgcpe Date: 09.16-03
Project: City of Albemarle FS 3 Time: 15:32:06
Scenario: Albemarle FS3 25 Yr. Page: 3
OUTLET STRUCTURE REPORT
100.20 0.20 0.73
100.40 0.40 2.49
100.60 0.60 5.33
100.80 0.80 9.11
101.00 1.00 13.74
101.20 1.20 19.24
101.40 1.40 25.77
101.60 1.60 32.64
101.80 1.80 40.37
102.00 2.00 48.62
102.20 2.20 57.38
102.40 2.40 66.32
102.60 2.60 75.94
102.80 2.80 85.56.
103.00 3.00 95.18
103.20 3.20 105.15
103.40 3.40 115.11
103.60 3.60 125.42
103.80 3.80 135.38
104.00 4.00 145.35
104.20 4.20 155.31
104.40 4.40 165.28.
104.60 4.60 175.24
104.80 4.80 175.93
105.00 5.00 201.06
r
T

September 2003
City of Albemarle Council
Roger F. Snyder, Mayor
Troy E. Alexander, Mayor Pro-Tem
Jane Hartley
Judy Holcomb
Jimmy D. Napier
Jack F. Neel
T. Ed Underwood
T. E. White
Raymond Allen, City Manager
Emie Borders, Dir. Engineering
O
rr2?
-lam A BETARLE
1? f..a.
City of Albemarle
North Carolina
inage....
17943 : CO
?
40
"-4c. "INDI ???'%%
Chambers Engineering, PA
129 North First St., Atbemarre, NC 28001 704-984-6427

'o-
RoTr1N COUNTY
LEGEND
r{

SHEET INDEX
SHEET NO. DESCRIPTION
1 COVER SHEET
2 SHEET INDEX, LEGEND, GENERAL NOTES
3 PLAN VIEW-STORM DRAINAGE
4 DETAILS
DlncHme to SI!e:
From AJhamane take US S2 NoM, Easton
the Northeast Connector epprodmaWy 118
mile to plq'ed site at Fire Station 3
To
1
t
GENERAL PROJECT NOTES:
1. LOCATION OF EXISTNG UTILITIES SHOWN ON THESE PLANS WERE
COMPILED BASED ON THE BEST INFORMATION AVAILABLE. THESE
LOCATIONS ARE NOT INTENDED TO BE EXACT OR COMPLETE THE
CONTRACTOR SHALL COORDINATE WITH ALL UTILITY COMPANIES AND
FIELD VERIFY THE LOCATION OF ALL UTILITIES PRIOR TO CONSTRUCTION.
I THE CONTRACTOR IS SOLELY RESPONSIBLE FOR SITE SAFETY
ASSOCIATED WITH THE WORK UNDER THIS PROJECT AND FOR
COMPLIANCE WITH ALL FEDERAL. STATE AND LOCAL. HEALTH AND
SAFETY LAWS, CODES, REGULATION'S, AND ORDINANCES INCLUDING
BUT NOT LIMITED TO THOSE CURRENTLY MANDATED BY THE
OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA}
3. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING THE
ENGINEER WITH A SET OF SURVEY RECORD (AS-BUILT) DRAWINGS.
THESE DRAWINGS SHALL ATA MINIMUM SHOW THE FINAL LOCATION
OF ALL INSTALLED FACILITIES.
4. ALL PIPE MEASUREMENTS SHOWN ARE PLAN LENGTH MEASURED
IN HORIZONTAL PLANE ONLY.
war M F'C I ?.m ec
Chambers Engineering, PA
129 North Flnf St.. Alb-H4, NC 18001704984-6017
I
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I
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Q
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NO?TOCD
I
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V
Fire Statior' - °I`e Improvements
fie
144 North , Ne ade, NC 28001
ffla EMBANKMENT SLOPE
- 50 - CONTOUR
a VEGETATION
0 Co CLEAN OUT
0 MH PROPOSED MANHOLE
O MH EXISTING MANHOLE
11 CB STORM DRAIN CATCH BASIN
M) UTIUTY VAULT
-'3'-PP POWER POLE
$TP TELEPHONE POLE
Y- PROPOSED FIRE HYDRANT W/ GATE VALVE
( D- •- EXISTING FIRE HYDRANT W/ GATE VALVE
X15.5 EXISTING SPOT ELEVATION
75.8 FINISHED SPOT ELEVATION
HORIZONTAL CP-X,
CONTROL POINT
BENCHMARK
Q? IDENTIFICATION AND APPROXIMATE
/ e?'TH-"l(' LOCATION OF SOIL TEST HOLE
T TELEPHONE LINE
UNDERGROUND TELEPHONE CABLE
ELECTRIC LINE
WATER LINE
- 0- GAS LINE
PROPOSED BURIED PIPE
EXISTING BURIED PIPE
RAILROAD
?Illlllffff
-?---?- DRAINAGE FLOW t,0?N CA 11 III
I
NATURAL WATERWAY O?E
FENCE UNE
------- PROPERTY LINE 179 EAL
/ •
----- CENTERLINE ?'O '?aC? •u ?/
0t? • .GItJ ?P?`:
sr SILT FENCE
'-
CHECK DAM IIIIIRAp IGI?`?,,
INLET PROTECTION, TYPE VARIES
General Notes, Legend
9R
NO.
2 4
I t
UNION COUNTY
LOCATION MAP ?N
NO SCALE ?VNrr
LIS r Fire Station 3 - Site Improvements �! Plan View
Chambers Engineerin City Of Albemarle �'
A;
sI Storm Drainage 3 4
g. PA = 144 North Second Sc-Alberrzrie, NC 28001 �+
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r 1Ar
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L Pa IOC SLIM ALL Or, 0a AND ACP MISS OMOMM8 OF POOR OR LMVO
zL OR 11000 AW P10EN1.
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yi .I Fire Station 3 - Site Improvements Details
City of Albematle t,wu Chambers Engineering, PA o 144NorhSecondSt-Nbemade,NC:9001 iy) 4
c 119 NO- First St.. Alf»maM, NC 28001 704-984fi417 704-994-6979