20010992 Ver 1_COMPLETE FILE_20010629

mot PG
Michael F. Easley
Governor.
William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
Gregory J. Thorpe, Ph.D.
Acting Director
Division of Water Quality
August 8, 2001
DWQ Project No. 01-0992
Wake County
Page 1 of 2
City of Raleigh
attn: Mr. Jack Moyer
222 West Harget Street
PO Box 590
Raleigh, NC 27602
cc: Soil & Environmental Consultants, Inc. (S&EC, Inc.)
attn: Mr. Jim Cooper
11010 Raven Ridge Road
Raleigh, NC 27614
Re: Pigeon House Branch Sewer Line, Raleigh, Wake County, NC
S&EC, Inc. Project No. 01-6275
Pigeon House Branch [03-04-02, 27-33-18; C NSW]
APPROVAL of 401 Water Quality Certification and compliance determination per the Neuse River Buffer
Protection Rules (15A NCAC 2B.0233) with ADDITIONAL CONDITIONS
Dear Sirs, 111 `&I
You have our approval, in accordance with e attached conditions, to impact 0.018 acres of wetlands, 601inear
feet of streams and 6,670 ftZ of Zone 1 and 5,311 ft for the purpose of constructing the proposed development, as
described within your application and site plan dated June 29, 2001. After reviewing your application, we have
decided that this fill is covered by General Water Quality Certification Number 3288. This Certification allows you to
use Nationwide Permit Number 12 when issued by the US Army Corps of Engineers (USACE). In addition, you
should get any other required federal, state or local permits before you go ahead with your project including (but not
limited to) Sediment and Erosion Control. Also, this approval will expire when the accompanying 404 permit expires
unless otherwise specified in the General Certification.
This approval is only valid for the purpose and design that you described in your revised application dated
6/29/01. If you change your project, you must notify us and you may be required to send us a new application. If the
property is sold, the new owner must be given a copy of this Certification and approval letter and is thereby responsible
for complying with all conditions. If total fills for this project (now or in the future) exceed one acre of wetland,
compensatory mitigation may be required as described in 15A NCAC 211.0506 (h). For this approval to be valid, you
must follow the conditions listed in the attached certification and any additional conditions listed below.
1. The outside boundary of the protected buffer and approved construction corridor shall be clearly marked with orange
fabric fencing prior to any land disturbing activities for sections of the proposed utility line where impacts have been
approved within the riparian buffers to ensure compliance with 15A NCAC 2B .0233 and this Certification.
2. Upon completion of all work approved within this Certification, and any subsequent modifications, the applicant is
required to return the attached certificate of completion to the 401/Wetlands Unit, North Carolina Division of Water
Quality, 1650 Mail Service Center, Raleigh, NC, 27699-1650.
401 WETLANDS CERTIFICATION UNIT
North Carolina Division of Water Quality, Department of Environment and Natural Resources
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
919-733-1786 (phone), 919-733-6893 (fax), http://h2o.enr.state.ne.us/ncwetlands

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, which
conforms to Chapter 150B of the North Carolina General Statutes to the Office of Administrative Hearings, P.O. Box
27447, Raleigh, N.C. 27611-7447. This certification and its conditions are final and binding unless you ask for a
hearing.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act. If
you have any questions, please telephone John Dorney at 919-733-9646 or Bob Zarzecki at 919-733-9726.
Sincerely,
ray J. Thorpe, Ph. .
C WQ, Acting Dire to
Cc: Todd Tugwell, US Army Corps of Engineers Raleigh Regulatory Field Office
Steve Mitchell, DWQ Raleigh Regional Office
File Copy
Central Files
DWQ 010992
QF W ATFR Michael F. Easley
\Q? QG Governor
William G. Ross, Jr., Secretary
> Department of Environment and Natural Resources
0 `C Gregory J. Thorpe, Ph.D.
Acting Director
CIO
Division of Water Quality
DWQ Project No.: 01-0992 County: Wake
Applicant: City of Raleigh
Project Name: Pigeon House Branch Sewer Line
Date of Issuance of 401 Water Quality Certification: 8/6/01
Certificate of Completion
Upon completion of all work approved within the 401 Water Quality Certification or applicable Buffer Rules, and any
subsequent modifications, the applicant is required to return this certificate to the 401/Wetlands Unit, North Carolina
Division of Water Quality, 1650 Mail Service Center, Raleigh, NC, 27699-1650.This form may be returned to DWQ by the
applicant, the applicant's authorized agent, or the project engineer.It is not necessary to send certificates from all of these.
Applicant's Certification:
I, , hereby state that, to the best of my abilities, due care and diligence was used
in the observation of the construction such that the construction was observed to be built within substantial compliance and
intent of the 401 Water Quality Certification and Buffer Rules, the approved plans and specifications, and other supporting
materials.
Signature: Date:
Agent's Certification:
I, , hereby state that, to the best of my abilities, due care and diligence was used
in the observation of the construction such that the construction was observed to be built within substantial compliance and
intent of the 401 Water Quality Certification and Buffer Rules, the approved plans and specifications, and other supporting
materials.
Signature: Date:
If this project was designed by a Certified Professional:
I, , as a duly registered Professional (i.e., Engineer, Landscape
Architect, Surveyor, ect.) in the State of North Carolina, having been authorized to observe (periodically, weekly, full time)
the construction of the project, for the Permittee hereby state that, to the best of my abilities, due care and diligence was
used in the observation of the construction such that the construction was observed to be built within substantial compliance
and intent of the 401 Water Quality Certification and Buffer Rules, the approved plans and specifications, and other
supporting materials.
Signature Registration No.
Date
North Carolina 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)
919-733-1786 (phone), 919-733-6893 (fax), http://h2o.enr.state.nc.us/ncwetlands/
- ?F W ATF9
p Michael F. Easley - -
?O G Governor
William G. Ross,Jr.Secretary
p Department of Environment and Natural Resources
Kerr T. Stevens
Division of Water Quality
Division of Water Quality
Department of Environmental and Natural Resources
Wetlands/401 Unit
Location: 2321 Crabtree Boulevard, Suite 250 Raleigh, NC 27604-2260
Mailing Address: 1650 Mail Service Center Raleigh, NC 27699-1650
Contact Information: General 919-733-1786 Fax: [phone]
Fax Number: a Lic, ot
Fax To:
Company:
53ec.
Date: 8.30.0
Phone: 733 4-+2(0
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From: Sob ZQ?z«k:
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No. Of Pages including cover sheet:
Notes or special instructions:

Division of Water Quality 2321 Crabtree Blvd, Ste 250 Raleigh, NC 27604-2260
Wetlands/401 Unit: [phone]
Fax: [phone]
. uy„ - -
i
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, which .
conforms to Chapter 150B of the North Carolina General Statutes to the Office of Administrative Hearings, P.O. Box
27447, Raleigh, N.C. 27611-7447. This certification and its conditions are final and binding unless you ask for a
hearing.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act. If
you have any questions, please telephone John Dorsey at 919-733-9646 or Bob Zarzecki at 919-733-9726.
Sincerely,
W,?ray . Thorpe, Ph. .
Acting Dire to
Cc: Todd Tugwell, US Army Corps of Engineers Raleigh Regulatory Field Office
Steve Mitchell, DWQ Raleigh Regional Office
File Copy
Central Files
DWQ 010992
0F W ATFR Michael F. Easley, Governor
Ot ?G William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
r
j Gregory J. Thorpe, Ph.D.
p -? Acting Director
Division of Water Quality
IKEUEIFI
August 23, 2001
Mr. James Massengill
Carolina Power and Light i
1020 West Chatham Street
Cary, North Carolina 27511-6201 `L 8
Dear Mr. Massengill:
Subject: DWQ #: 010992
Project: Operations Center (Marsh Creek)
County: Wake
The North Carolina Wetlands Restoration Program (NCWRP) has received a check
in the amount of $ 18,288.00 check number 086856, as payment for the compensatory
mitigation requirements of the 401 Water Quality Certification, Certificate of
Authorization, and/or Section 404 Permit issued for the subject project. This receipt serves
as notification that the compensatory mitigation requirements for this project have been
satisfied. Please note that you must also comply with all other conditions of this
certification and any other state, federal or local government permits or authorization
associated with this activity.
The NCWRP, by acceptance of this payment, acknowledges that the NCWRP is
responsible for the compensatory mitigation requirements associated with the subject
permit and agrees to provide the compensatory mitigation as specified in the permit. The
NCWRP will restore 19,050 square feet of riparian buffer in the appropriate portion of the
Neuse River Basin.
If you have any questions or need additional information, please contact Crystal
Braswell at [phone].
Sincerely,
I?
onald E. Ferrell,
Program Manager
cc: Rob Ridings, Wetlands/401 Unik`
file
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-EDM'R
Wetlands Restoration Program 1619 Mail Service Center Raleigh, NC 27699-1619 [phone] Customer Service
320 West Jones Street Raleigh, NC 27603 Fax: [phone] 623-7748
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Soil & Environmental Consultants, PA
11010 Raven Ridge Road - Raleigh, North Carolina 27614 - Phone: [phone] - Fax: [phone]
www,SandEC.com
FILE COPY 0109,92
This is not a request for a 401-Water Quality Certification. Therefore, no check for
the NC-DWQ is enclosed.
t? June 29a', 2001
NCDENR-DWQ US Army Corps of Engineers
Attn: Mr. Bob Zarzecki Attn: Ms. Amanda Jones
2321 Crabtree Boulevard 6508 Falls of the Neuse Rd., Ste. 120
Raleigh, NC 27604 Raleigh, NC 27615
RE: Nationwide Permit 12 & Neuse River Buffer Compliance Request
Pigeon House Branch Sewer Line
Raleigh, Wake County, North Carolina
(Latitude/Longitude: 35°48'30" N, 78°37'30" W)
S&EC Project #: 01-6275
Dear Mr. Zarazecki and Ms. Jones,
On behalf of The City of Raleigh, we hereby request authorization from the US Army
Corps of Engineers to use Nationwide Permit 12 for this project to cover temporary
impacts to jurisdictional stream channels and wetlands. We also request written
concurrence from the NC Division of Water Quality (NC-DWQ) that the project
complies with the Neuse River Basin Buffer Rules. A Pre-construction Notification
Application (PCN) is attached, which includes an agent authorization form. Kevin
Martin of S&EC previously discussed this project with Mr. Bob Zarzecki of NC-DWQ.
S&EC delineated the wetlands and jurisdictional waters present in the construction
corridor of the proposed sewer line in May 2001. Data forms completed for the wetland
delineation are also attached. Only three narrow riparian wetland areas, in addition to
two stream crossings, will be temporarily impacted by the project. Thus, wetland flags
were not surveyed, and impacts to jurisdictional wetlands and waters of the U.S. have
been estimated for the purposes of this application.
Charlotte Office:
PMB 291, 3020-1 Prosperity Church Road
Charlotte, NC 28269-7197
Phone: [phone]
Fax: [phone]
Greensboro Office:
3817-E Lawndale Drive
Greensboro, NC 27455
Phone: [phone]
Fax: [phone]
Hickory Office:
910 Boston Road
Taylorsville, NC 28681
Phone [phone]
Fax: [phone]
The proposed project, which consists of the construction of an upgraded sewer line within
an existing easement (adjacent to an older existing one), is located parallel to and just east
of Capital Boulevard (Hwy 401) from northeast of Atlantic Ave. to an existing main at
Crabtree Creek. Please refer to the attached map (Figure 1) for the project's location on a
USGS topographic quadrangle.
Approximately 60 linear ft. of stream channel (0.014 acres) and 0.018 acres of
jurisdictional wetlands will be temporarily impacted by the proposed sewer line (see
attached impact map and detailed subsets). Construction of the sewer line will proceed in
accordance with all general conditions set forth by the USACE for Nationwide Permit 12.
Thus, since all general conditions for NWP 12 set forth by the USACE will be adhered
to, this project does not require written concurrence from the NC-DWQ (condition 1 of
state general certification for NWP 12), other than written concurrence that it complies
with the Neuse River Buffer rules.
The proposed sewer line encroaches into the existing 50 ft. Neuse River buffer in four
places: the first to tie the proposed line into the existing line at Crabtree Creek (impacts to
zone 1: 633 ft2, impacts to zone 2: 1,244 ft), the second where the proposed sewer line
skirts the outer edge of zone 2 of the buffers along Pigeon House Branch, just north of
Crabtree Boulevard (impacts to zone 2: 1,877 ft), the third where a 20 ft. wide corridor
lateral line crosses Pigeon House Branch (impacts to zone 1: 470 ft.2), and the fourth
where the 40 ft. wide corridor crosses Pigeon House Branch again and skirts the buffer
off Cemetery Branch (impacts to zone 1: 5,567 ft. 2, impacts to zone 2: 2,190 ft.2). Total
impacts to the Neuse River Buffers include 6,670 ft.2 to zone 1, and 5,311 ft.2 to zone 2.
None of the buffer encroachments can be avoided, since they occur immediately adjacent
to the old existing sewer line, which is being replaced by the proposed line. Although the
proposed sewer line is planned along Pigeon House Branch and Cemetery Branch, both
buffered stream channels, exiting uses, such as parking lots, roads, etc. border the stream
in all other areas where the proposed sewer line encroaches within the 50 ft. buffer (other
than the four encroachments into vegetated buffered areas mentioned above). Since the
project is within an existing easement and replaces an existing line, we believe it is
exempt from the buffer rules because it is an existing use.
It should be noted that the existing sewer line is very old, and leaks in several places (see
attached letter from Tate Lanning). The proposed new sewer line will serve as a
considerable improvement over the older one, helping to greatly reduce the non-point
sources of nutrient inputs, as a result of the older line leaks, into Crabtree Creek.
Please call if you require any additional information or have any questions.
Sincerely,

Jim Cooper
Environmental Scientist
9-clo .nNJe1in/YY
Kevin Martin
President
Attachments:
Pre-construction (PCN) notification form
USGS Site Vicinity Map
Wake County Soil Survey Map
Wetland and upland data forms
Letter from City of Raleigh giving S&EC permission to act as its agent
(in lieu of Agent Authorization form)
Letter from engineer (Tate Lanning & Associates) explaining need for new
Sewer line
Overall impact map and 6 smaller-scale inset maps

Pre-Construction Notification (PCN) Application Form
For Section 404 and/or Section 10 Nationwide, Regional and General Permits, Section 401
General Water Quality Certifications, and Riparian Buffer and Watershed Buffer Rules
This form is to be used for projects qualifying for any of the U.S. Army Corps of Engineers' (USACE)
Nationwide, Regional or General Permits as required by Section 404 of the Clean Water Act and/or
Section 10 of the Rivers and Harbors Act, and for the North Carolina Division of Water Quality's
(DWQ) associated General 401 Water Quality Certifications. This form is also to be used for any
project requiring approval under any Riparian Buffer Rules implemented by the N.C. Division of Water
Quality. This form should not be used if you are requesting an Individual 404 Permit or Individual 401
Water Quality Certification. The USACE Individual Permit application form is available online at
http://www.saw.usace.army.iiiiI/wetlands/Pemi app.litm.
The USACE is the lead regulatory agency. To review the requirements for the use of Nationwide,
Regional or General permits, and to determine which permit applies to your project, please go to the
USACE website at http•//www.saw.usace.army.mil/wetlands/regtour.litm, or contact one of the field
offices listed at the end of this application. The website also lists the responsible project manager for
each county in North Carolina and provides additional information regarding the identification and
regulation of wetlands and waters of the U.S.
The DWQ issues a corresponding Certification (General or Individual), and cannot tell the applicant
which 401 Certification will apply until the 404 Permit type has been determined by the USACE.
Applicants are encouraged to visit DWQ's 401/Wetlands Unit website at
http://l12o.enr.state.nc.us/ncwetlands to read about current requirements for the 401 Water Quality
Certification Program and to determine whether or not Riparian Buffer Rules are applicable. The
applicant is also advised to read the full text of the General Certification (GC) matching the specific 404
Permit requested. In some cases, written approval for some General Certifications is not required,
provided that the applicant adheres to all conditions of the GC. Applicants lacking access to the internet
should contact DWQ's Central Office in Raleigh at [phone].
Trout Waters Coordination - Special coordination with the North Carolina Wildlife Resources
Commission (NCWRC) is also required for projects occurring in any of North Carolina's twenty-five
counties that contain trout waters. In such cases, the applicant should contact the appropriate NCWRC
regional coordinator (listed by county on the last page of this application).
Page I of 13
CAMA Coordination - If the project occurs in any of North Carolina's twenty coastal counties (listed on
the last page of this application) the applicant should also contact the North Carolina Division of Coastal
Management (DCM) at [phone]. DCM will determine whether or not the project involves a
designated Area of Environmental Concern, in which case DCM will act as the lead permitting agency.
In such cases, DCM will require a Coastal Area Management Act (LAMA) Permit and will coordinate
the 404/401 Permits.
USACE Permits - Submit one copy of this form, along with supporting narratives, maps, data forms,
photos, etc. to the applicable USACE Regulatory Field Office (addresses are listed at the end of this
application). Upon receipt of an application, the USACE will detennine if the application is complete as
soon as possible, not to exceed 30 days. This PCN form is designed for the convenience of the applicant
to address information needs for all USACE Nationwide, Regional or General permits, as well as
information required for State authorizations, certifications, and coordination. Fully providing the
information requested on this form will result in a complete application for any of the USACE
Nationwide, Regional or General pen-nits. To review the minimum amount of information that must be
provided for a complete PCN for each USACE Nationwide permit, see Condition 13, 65 Fed.Reg. 12893
(March 9, 2000), available at http•//www saw usace.anny.mil/wetlands/nwpfinalFedReg.pdf.
Processing times vary by pen-nit and begin once the application has been detennined to be complete.
Please contact the appropriate regulatory field office for specific answers to permit processing periods.
401 Water Quality Certification or Buffer Rules - All information is required unless otherwise stated
as optional. Incomplete applications will be returned. Submit seven collated copies of all USACE
Pennit materials to the Division of Water Quality, 401/Wetlands Unit, 1650 Mail Service Center,
Raleigh, NC, 27699-1650. If written approval is required or specifically requested for a 401
Certification, then a non-refundable application fee is required. In brief, if project impacts include less
than one acre of cumulative wetland/water impacts and less than 150 feet cumulative impacts to
streams, then a fee of $200 is required. If either of these thresholds is exceeded, then a fee of $475 is
required. A check made out to the North Carolina Division of Water Quality, with the specific name of
the project or applicant identified, should be stapled to the front of the application package. For more
information, see the DWQ website at http://h2o.ehnr,state.nc.us/ncwetlands/fees.html. The fee must be
attached with the application unless the applicant is a federal agency in which case the check may be
issued from a separate office. In such cases, the project must be identifiable on the U.S. Treasury check
so that it can be credited to the appropriate project. If written approval is sought solely for Buffer Rules,
the application fee does not apply, and the applicant should clearly state (in a cover letter) that only
Buffer Rule approval is sought in writing. Wetlands or waters of the U.S. may not be impacted prior to
issuance or waiver of a Section 401 Water Quality Certification. Upon receipt of a complete application
for a 401 Certification, the Division of Water Quality has 60 days to prepare a written response to the
applicant. This may include a 401 Certification, an on-hold letter pending receipt of additional
requested information, or denial.
Page 2 of 13
Office Use Only: 010992 For n Version April 2001
USACE Action ID No. DWQ No.
If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A" rather than
leaving the space blank.
1. Processing
1. Check all of the approval(s) requested for this project:
® Section 404 Permit
? Section 10 Permit
? 401 Water Quality Certification
® Riparian or Watershed Buffer Rules
Nationwide, Regional or General Permit Number(s) Requested: 12
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 (see section VIII - Mitigation), check here: ?
II. Applicant Information
1. Owner/Applicant Information
Name: City of Raleigh (attn• Mr. Jack Mower)
Mailing Address: 222 West Har¢et St P.O. Box 590, Raleigh NC 27602
Telephone Number:
E-mail Address:
Fax Number:
2. Agent 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: Jim Cooper
Company Affiliation: Soil & Environmental Consultants
Mailing Address: 11010 Raven Ridge Road Raleigh NC 27614
Telephone Number: (919)-846-5900 Fax Number: (919)-846-9467
E-mail Address: JcooperAsandec com
Page 3 of 13
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 1 I 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: Pigeon House Branch Sewer Line
2. T.I.P. Project Number (NCDOT Only):
3. Property Identification Number (Tax PIN):
4. Location
County: Wake Nearest Town: Raleigh
Subdivision name (include phase/lot number): N/A
Directions to site (include road numbers, landmarks, etc.): The proposed sewer line corridor
runs parallel to and just east of Capital Boulevard (Hwy 401) northeast of Atlantic Ave., and
south of Crabtree Creek in Raleigh, NC
5. Site coordinates, if available (UTM or Lat/Long): 35°48'30" N 78°37'30" 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. Describe the existing land use or condition of the site at the time of this application: The
area along the roposed sewer line has mixed land use including primarily industrial and
commercial use with some residential areas Immediately adjacent to and southwest of)
Crabtree Creek there are pockets of forested and grassed areas
7. Property size (acres):
8. Nearest body of water (stream/river/sound/ocean/lake): Pigeon House Branch (stream)
Page 4 of 13
9. River Basin: Neuse
(Note - this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at littp://li2o.enr.state.nc.us/admin/inaps/.)
10. Describe the purpose of the proposed work: The purpose of the proposed work is to
provide a new, modernized sewer line to replace an older existing line to connect to the
exiting sewer line at Crabtree Creek.
11. List the type of equipment to be used to construct the project: Heavy machinery
typically associated with the installation of sewer lines will be used for this project.
12. Describe the land use in the vicinity of this project: Land use is primarily industrial and
commercial with smaller residential areas present. A small wooded/grassed area is
southwest of Crabtree Creek at the northeastern end of the proposed sewer line.
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.
V. Future Project Plans
Are any additional permit requests anticipated for this project in the future? If so, describe the
anticipated work, and provide justification for the exclusion of this work from the current
application: No future impacts/permit requests are expected for this project in the future.
Page 5 of 13
V1. Proposed Impacts to Waters of the United States/Waters of the State
It is the applicant's (or agent's) responsibility to detennine, 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, pennanent
and temporary, must be listed herein, and must be clearly identifiable on an accompanying site
plan. All wetlands and waters, and all streams (intennittent and perennial) must be shown on a
delineation map, whether or not impacts are proposed to these systems. Wetland and stream
evaluation and delineation fonns should be included as appropriate. Photographs may be
included at the applicant's discretion. If this proposed impact is strictly for wetland or stream
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. 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***
Impact 1 Excavation 0.0053 500-600 ft. Headwater forest
Impact 2 Excavation 0.0042 150 ft. Headwater forest
Impact 3 Excavation 0.008 250 ft. Headwater forest

* List each impact separately and identify temporary impacts. Impacts include, butare not Limited to: mechanized clearing, grading, 1111,
excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding.
** 100-Year floodplains arc 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 httn://www.fema.gov.
*** List a wetland type that best describes wetland to be impacted (e.g., freshwater/saltwater marsh, forested wetland, beaver pond,
Carolina Bay, bog, etc.)
List the total acreage (estimated) of existing wetlands on the property: greater than 5-7 acres
in areas adjacent to proposed sewer line corridor (Pigeon House Branch and Crabtree Creek
area wetlands)
Total area of wetland impact proposed: 0.018 acres
2. Stream Impacts, including all intermittent and perennial streams
Stream Impact
Site Number
indicate on ma
Type of Impact* Length of
Impact
linear feet
Stream Name** Average Width
of Stream
Before Impact Perennial or
Intermittent?
(please secif )
Impact 4 Excavation 20 ft. Pigeon House Branch 10 ft. Perennial
Impact 5 Excavation 40 ft. Pigeon House Branch 10 ft. Perennial

Page 6 of 13

* List each impact separately and identify temporary impacts. Impacts include, but are not umued to: cuiverts and associated rnprap,
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.ussts.t;ov. Several internet sites also allow direct download and printing of USGS maps (e.g., www.topozone.coni,
www.malquest.con? etc.).
Cumulative impacts (linear distance in feet) to all streams on site: 60 linear ft.
3. Open Water Impacts, including Lakes, Ponds, Estuaries, Sounds, Atlantic Ocean and any
other Water of the U.S.
Open Water Impact
Site Number
indicate on ma
Type of Impact* Area of
Impact
acres Name of Waterbody
(if applicable) Type of Waterbody
(lake, pond, estuary, sound,
bay, ocean, etc.

3. List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill,
excavation, dredging, flooding, drainage, bulkheads, etc.
4. Pond Creation
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
Page 7 of 13
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 applicant requested a wetland delineation of the site in order to minimize and avoid
onsite wetlands and waters of the U.S. to the maximum extent possible. The proposed sewer line
applied for will replace an older existing one which has been demonstrated to leak in several
areas in the Pigeon House Branch/Crabtree Creek floodplain areas. Replacing this existing line
will greatly help to minimize the associated non-point nutrient inputs into Crabtree Creek and
Pigeon House Branch as a result of the older sewer line's leaks.
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 detennining 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
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
http://h2o.enr.state.nc.us/newctlands/stnngide.htin].
1. 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 snap, if offsite), affected stream and river basin, type and amount (acreage/linear feet)
Page 8 of 13
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.
Mitigation may also be made by payment into the North Carolina Wetlands Restoration
Program (NCWRP) with the NCWRP's written agreement. Check the box indicating that
you would like to pay into the NCWRP. Please note that payment into the NCWRP must be
reviewed and approved before it can be used to satisfy mitigation requirements. Applicants
will be notified early in the review process by the 401/Wetlands Unit if payment into the
NCWRP is available as an option. For additional information regarding the application
process for the NCWRP, check the NCWRP website at http:L/h2o.enr.state.nc.us/wip/index.litui If
use of the NCWRP is proposed, please check the appropriate box on page three and provide
the following infonnation:
Amount of stream mitigation requested (linear feet):
Amount of buffer mitigation requested (square feet):
Amount of Riparian wetland mitigation requested (acres):
Amount of Non-riparian wetland mitigation requested (acres):
Amount of Coastal wetland mitigation requested (acres):
IX. Environmental Documentation (DWQ Only)
Does the project involve an expenditure of public funds or the use of public (federal/state/local)
land?
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
Page 9 of 13
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 (DWQ Only)
It is the applicant's (or agent's) responsibility to detennine, 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 6,670 ftz 3.0
2 5,311 ft2 1.5
Total
* Zone I 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 213.0242 or.0260.
XI. Stormwater (DWQ Only)
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.
Page 10 of 13
X1I. Sewage Disposal (DWQ Only)
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 (DWQ Only)
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 pen-nits. 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).
01
Applicant/t4-gent ?Signat if Date
(Agent's st ure is vali only if an authorization letter from the applicant is provided.)
US Army Corps Of Engineers Field Offices and County Coverage
Asheville Regulatory Field Office Alexander Cherokee Iredell Mitchell
US Army Corps of Engineers Avery Clay Jackson Polk
151 Patton Avenue Buncombe Cleveland Lincoln Rowan
Room 208 Burke Gaston Macon Rutherford
Asheville, NC 28801-5006 Cabarrus Graham Madison Stanley
Telephone: [phone] Caldwell Haywood McDowell Swain
Fax: [phone] Catawba Henderson Mecklenburg Transylvania
Union
Watauga
Yancey
Page l 1 of 13
Raleigh Regulatory Field Office Alamance Durham Johnston Rockingham Wilson
US Army Corps Of Engineers Alleghany Edgecombe Lee Stokes Yadkin
6508 Falls of the Neuse Road Ashe Franklin Nash Surry
Suite 120 Caswell Forsyth Northampton Vance
Raleigh, NC 27615 Chatham Granville Orange Wake
Telephone: [phone] Davidson Guilford Person Warren
Fax: [phone] Davie Halifax Randolph Wilkes
Washington Regulatory Field Office Beaufort Currituck Jones Pitt
US Army Corps Of Engineers Bertie Dare Lenoir Tyrrell
Post Office Box 1000 Camden Gates Martin Washington
Washington, NC 27889-1000 Carteret* Green Pamlico Wayne
Telephone: [phone] Chowan Hertford Pasquotank
Fax: [phone] Craven Hyde Perquimans *Croatan National Forest Only
Wilmington Regulatory Field Office Anson Duplin Onslow
US Army Corps Of Engineers Bladen Harnett Pender
Post Office Box 1890 Brunswick Hoke Richmond
Wilmington, NC 28402-1890 Carteret Montgomery Robeson
Telephone: [phone] Columbus Moore Sampson
Fax: [phone] Cumberland New Hanover Scotland
US Fis
US Fish and Wildlife Service
Raleigh Field Office
Post Office Box 33726
Raleigh, NC 27636-3726
Telephone: [phone]
Division of Water Quality
401 Wetlands Unit
1650 Mail Service Center
Raleigh, NC 27699-1650
Telephone: [phone]
Fax: [phone]
arine Fisheries Service
National Marine Fisheries Service
Habitat Conservation Division
Pivers Island
Beaufort, NC 28516
Telephone: [phone]
North Carolina State Agencies
Division of Water Quality
Wetlands Restoration Program
1619 Mail Service Center
Raleigh, NC 27699-1619
Telephone: [phone]
Fax: [phone]
CAMA and NC Coastal Counties
State Historic Preservation Office
Department Of Cultural Resources
4617 Mail Service Center
Raleigh, NC 27699-4617
Telephone: [phone]
Fax: [phone]
Division of Coastal Management Beaufort Chowan Hertford Pasquotank
1638 Mail Service Center Bertie Craven Hyde Pender
Raleigh, NC 27699-1638 Brunswick Currituck New Hanover Perquimans
Telephone: [phone] Camden Dare Onslow Tyrrell
Fax: [phone] Carteret Gates Pamlico Washington
NCWRC and NC Trout Counties
Western Piedmont Region Coordinator
3855 Idlewild Road
Kernersville, NC 27284-9180
Telephone: [phone]
h and Wildlife Service / National M
US Fish and Wildlife Service
Asheville Field Office
160 Zillicoa Street
Asheville, NC 28801
Telephone: [phone]
Alleghany Caldwell
Ashe Mitchell
Avery Stokes
Burke Surry
Watauga
Wilkes
Page 12 of 13
Mountain Region Coordinator Buncombe Henderson Polk
20830 Great Smoky Mtn. Expressway Cherokee Jackson Rutherford
Waynesville, NC 28786 Clay Macon Swain
Telephone: [phone] Graham Madison Transylvania
Fax: [phone] Haywood McDowell Yancey
Page 13 of 13
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JUN 1 5 ?001
City Of (Raleigh
,Worth Carolina
June 8, 2001
U. S. Army Corps of Engineers
Wilmington District
Wilmington, NC 28402
NC DENR - Division of Water Quality
Wetlands / 401 Certification Unit
4401 Reedy Creek Road
Raleigh, NC 27607
Re: Replacement of Lower Pigeon House Creek Sanitary Sewer Trunk Main in Raleigh
Wetlands Related Consulting and Permitting
Dear Sirs:
This is to advise that the City of Raleigh Public Utilities Department has retained Soil
and Environmental Consultants, through Tate Lanning and Associates, to act as agents
for the City, to the extent permitted by law, in the preparation and processing of permit
applications in conjunction with the Lower Pigeon House Creek Sewer Trunk Main
Replacement Project for compliance with Federal and State wetlands and related
regulations and to furnish other supplemental information as may be requested in support
of the applications.
Sincerely,
Jack W. Moyer
Assistant Public Utilities Director
OFFICES • 222 WEST HARGETT STREET • POST OFFICE BOX 590 • RALEIGH, NORTH CAROLINA 27602
Recycled Paper
Welland Delineation Performed By: Soil & Environmental Consultants, Inc.
11010 Raven Ridge Road 231 16th Avenue NE
Raleigh, North Carolina 27614 Hickory, North Carolina 28601
[phone] [phone]
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site: Pigeon House Br. Sewer (S&EC 9ob#01-6275) Date: 5/14/01
Applicant/Owner: Tate Lanning & Associates County: Wake
Investigator: Jim Cooper State: NC
Do Normal Circumstances exist on the site? X Yes No Community ID: BLH Forest
Is the site significantly disturbed (Atypical Situation)? Yes X No Transect ID: wetland
Is the area a potential Problem Area? Yes X No Plot ID: 10 ft. from flag S-4
If needed, explain on reverse.
VCf2CTATV%1U
Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator
1. Acer negundo Tree FACW 9.
2. Ligustnim sinense Shrub FAC 10.
3. Juncus elfusus Herb FACW+ 11.
4. PolWonum spp. Herb FACW 12.
5. Utric cioica Herb FAC+ 13.
a. 14.
7. 15.
8. 16.
Percent of Dominant Species that are OBL, FACW,or FAC
(excluding FAG : 100%
Remarks: most of wetland area is open ground
uvnRni nav
Recorded Data: Wetland Hydrology Indicators:
-
-Stream, Lake or Tide Gauge Primary Indicators:
Aerial Photographs -Inundated
Other -Saturated In Upper 12 Inches
-Water Marks
X No Recorded Data Available -Drift Lines
-Sediment Deposits
X Drainage Patterns in Wetlands
Field Observations: Secondary Indicators (2 or more required):
Oxidized Root Channels in Upper 12 Inches
Depth of Surface Water: N/A (in.) Water-Stained Leaves
Local Soil Survey Data
Depth to Free Water in Pit: > 16° (in.) X FAC-Neutral Test
-Other (Explain In Remarks)
Depth to Saturated Soil: > 16° (in.)
Remarks:
Wetland Delineation Performed By:
11010 Raven Ridge Road
Raleigh, North Carolina 27614
[phone]
Soil & Environmental Consultants, Inc.
231 16th Avenue NE
Hickory, North Carolina 28801
[phone]
ProjecVSite: Pigeon House Br. Sewer (S&EC iob#: 01-6275) Plot ID: wetland
80!L 8
Map Unit Name Drainage Class: well-drained
(Series and Phase): Congaree slit loam Field Observations
Taxonomy (Subgroup): Topic Udifluvents Confirm Mapped Type? _ Yes - No
Profile Description:
Depth Matrix Color Mottle Color Mottle Texture, Concretions,
(inches) Horizon (Munsell Moist) (Munsell Moist) Abundance/Contrast Structure, etc.
0-5 A 10 YR 4/3 - - Loam sand
5-12+ B 10 YR 6/2 - - Silty day loam
Hydric Soil Indicators:
Histosol -Concretions
_
_Histic Epipedon -High Organic Content In Surface Layer in Sandy Soils
Sulfldic Odor _Organic Streaking in Sandy Soils
Aquic Moisture Regime -Listed on Local Hydric Solis List
Reducing Conditions -Listed on National Hydric Soils List
X Gleyed or Low-Chrome Colors -Other (Explain In Remarks)
Remarks:
vur-T1 ONn-q nETERMINATION
Hydrophytic Vegetation Present? X Yes No
Wetland Hydrology Present? X Yes _No
Hydric Soils Present? X Yes _No
Is this sampling point within a wetland?
X Yes _No
Remarks:
Wetland Delineation Performed By: Soil & Environmental Consultants, Inc.
11010 Raven Ridge Road 231 16th Avenue NE
Raleigh, North Carolina 27614 Hickory, North Carolina 28601
[phone] [phone]
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site: Pigeon House Br. Sewer (S&EC 6ob#01-6275) Date: 5114/01
Applicant/Owner: Tate Lanning & Associates County: Wake
Investigator: Jim Cooper State: NC
Do Normal Circumstances exist on the site? X Yes No Community ID: BLH Forest
Is the site significantly disturbed (Atypical Situation)? Yes X No Transect ID: upland
Is the area a potential Problem Area? Yes X No Plot ID: 10 ft. udand from flag S-1
(If needed, explain on reverse.
WIMPTOTION
Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator
1. Acer negundo Tree FACW 9.
2. Ligustrum sinense Shrub FAC 10.
3. Ulmus amerfcana Tree FACW 11.
4. Fra)dnus pennsylvanka Tree FACW 12.
5. To)dcodendron racicans Vine FAC 13.
6. Lonicere japonica Vine FAC- 14.
7. Acer negundo Herb FACW 15.
8. 16.
Percent of Dominant Species that are OBL, FACW,or FAC
(excluding FAC- : 100%
Remarks:
HYDROLOGY
-Recorded Data: Wetland Hydrology Indicators:
Stream, Lake or Tide Gauge Primary Indicators:
Aerial Photographs -Inundated
Other -Saturated In Upper 12 Inches
_Water Marks
X No Recorded Data Available -Drift Lines
-Sediment Deposits
-Drainage Patterns in Wetlands
Field Observations: Secondary Indicators (2 or more required):
Oxidized Root Channels in Upper 12 Inches
Depth of Surface Water: N/A (in.) -Water-Stained Leaves
Local Soil Survey Data
Depth to Free Water in Pit: > 1(" in.) X FAC-Neutral Test
-Other (Explain in Remarks)
Depth to Saturated Soil: > 16" (in.)
Remarks:
Wetland Delineation Performed By:
11010 Raven Ridge Road
Raleigh, North Carolina 27614
[phone]
Soil & Environmental Consultants, Inc.
231 16th Avenue NE
Hickory, North Carolina 28601
[phone]
Project/Site: Pigeon House Br. Sewer (S&EC job#: 01-6275) Plot ID: upland
SOILS
Map Unit Name Drainage Class: well-drained
(Series and Phase): Congaree silt loam Field Observations
Taxonomy (Subgroup): _Typic Udiflwents Confirm Mapped Type? _ Yes - No
Profile Description:
Depth Matrix Color Mottle Color Mottle Texture, Concretions,
(inches) Horizon (Munsell Moist) (Munsell Moist) Abundance/Contrast Structure, etc.
0-8 A 10 YR 4/3 - - Loam send
6-16+ B 7.5 YR 516 10 YR 6/2 Common, prominent Silty de loam
Hydric Soil Indicators:
_Histosol -Concretions
_Histic Epipedon -High Organic Content in Surface Layer in Sandy Soils
Sulfldic Odor -Organic Streaking In Sandy Soils
Aquic Moisture Regime -Listed on Local Hydric Soils List
-Reducing Conditions -Listed on National Hydric Soils List
_Gleyed or Low-Chroma Colors -Other (Explain in Remarks)
Remarks:
WETLANDS DETERMINATION
Hydrophytic Vegetation Present? X Yes No
Wetland Hydrology Present? -Yes X No
Hydric Soils Present? Yes X No
Is this sampling point within a wetland?
-Yes X No
Remarks:
TATE LANNING & ASSOCIATES, P.C.
CONSULTING ENGINEERS
CIVIL • MUNICIPAL
Mr. Kevin Martin
Soil & Environmental Consultants, Inc.
11010 Raven Ridge Road
Raleigh, NC 27614
Re: Replacement of Trunk Sewer
Lower Pigeon House Branch
CITY OF RALEIGH
Dear Mr. Martin:
Tote Lanning, Jr., P,E., P.L.S.
JUN 2 .( P001
June 21, 2001
Tate Lanning & Associates, P.C. serves as consulting engineers tot the City of Raleigh
for the proposed trunk sewer replacement project along Lower Pigeon House Branch.
This letter is for the purpose of presenting my professional opinion regarding the need
and justification for replacing this Trunk Sewer.
The project as currently proposed consists of approximately 4,500 linear feet of 24-inch
trunk sewer, which generally parallels Pigeon House Branch and Capital Boulevard,
from the existing 36-inch Crabtree Creek Interceptor Sewer, upstream to the confluence
of Pigeon House Branch and Cemetery Branch. The replacement project is the first
phase of a proposed three-phase program recommended by this office to correct
serious hydraulic and structural defects in the Pigeon House/Cemetery Brach trunk
sewer system.
The Lower Pigeon House Branch sewer system serves a very large portion of the
central section of Raleigh, including the downtown area. The original segments of the
trunk sewer are old vitrified clay pipe. The clay pipe has very short joints, and the
original line is estimated to be more than 50 years old. The Lower Pigeon House
Branch trunk sewer has posed a major maintenance problem for the City for many
years. The entire line was videotaped during our preliminary engineering study in 1999.
The following are examples of some of the problems observed and noted in our report:
? Missing pipe/completely deteriorated pipe
? Collapsed pipe
? Shattered and cracked pipe
? Separated joints, with major infiltration and potential for exfiltration
? Sagging vertical alignment resulting in blockages and potential for overflow
? Reverse slope observed in one section
? Pipe is very close to the creek in some areas, with potential for further exposure
and damage due to bank erosion.
211 Six Forks Road - Suite 122 - Post Office Box 18345 - Raleigh, NC 27619 - [phone] - Fax [phone]
Mr. Kevin Martin
June 21, 2001
Page 2 of 2
Should you need them, I can provide a copy of the Sewer System Evaluation Survey
and the videotapes as further evidence of the need to replace this line.
I trust that this information presents the justification required in order for you to proceed
with the environmental permitting required for the project. If I can be of further
assistance to you, please advise.
Yours very truly,
TATE LANNI & A 0CIATES, P.C.
J. Tate Lanning, Jr., P.E.
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