20140908 Ver 1_401 Application_20140814

Dewberry
Dewberry Engineers Inc.
2301 Rexwoods Drive, Suite 200
Raleigh, NC 27607 -3366
919.881.9939
919.881.9923 fax
August 19, 2014 www.dewberry.com
Ms. Karen Higgins
Wetlands, Buffer, and Stormwater —
Compliance & Permitting Unit
NC Division of Water Quality
1650 Mail Service Center
Raleigh, North Carolina 27699 -1650
Reference: City of Raleigh Project No. 400195
Swann Street Sanitary Sewer Replacement and Relocation
Nationwide 12 /WQC* 3884 Application
Dewberry Project No. 5oo60182
Dear Ms. Higgins:
Enclosed are five copies of a Pre - Construction Notification (PCN) Permit Application Package for the City
of Raleigh Swann Street Sanitary Sewer Replacement project. For your review we have enclosed five
copies of the PCN Application Form, Attachment A — Additional Information, USGS Quadrangle Map, site
photos, site plans, typical construction details and the $240.00 application fee.
The project titled "Swann Street Sanitary Sewer Replacement and Relocation" consists of rerouting a
portion of the existing sanitary sewer line away from an Unnamed Tributary to Crabtree Creek to prevent
future impacts to the sewer due to natural stream movements and replacing in -place a portion of sanitary
sewer to maintain gravity flow. This activity will occur in a sanitary sewer easement that has not been
maintained in the last 10 years.
The total temporary buffer impacts are 7,616 and6,319 sq. ft. for zone 1 and 2, respectively. The project
will also result in 40 linear feet of temporary stream impacts. The buffer disturbance is a result of
easement clearing necessary to access the repair location.
Please contact me with any questions regarding this permit application.
Sincerely,
Dewberry Engineers Inc.
Matthew W. Watt, PE
Project Engineer
Enclosures `,
CC: Rachelle Rhodes, City of Raleigh Public Utilities RECLzI V ED
AUG 21 2014
STORMW SAND QUALITY
AT PERM17TING

=' r
D Y
20140908
VOffice Use Only.
Corps action ID no.
DWQ project no.
Form Version 1.4 January 2009
Page 1 of 10
PCN Form —Version 1.4 January 2009
Pre - Construction Notification (PCN) Form
A.
Applicant Information
1.
Processing
1a.
Type(s) of approval sought from the Corps�j
❑ Section 404 Permit ❑ Section 10 Permit
1b. Specify Nationwide Permit (NWP) number: 12 or General Permit (GP) number:
1c.
Has the NWP or GP number been verified by the Corps?
❑ Yes ❑X No
1d.
Type(s) of approval sought from the DWQ (check all that apply):
M 401 Water Quality Certification — Regular ❑ Non -404 Jurisdictional General Permit
❑ 401 Water Quality Certification — Express ❑X Riparian Buffer Authorization
1 e. Is this notification solely for the record
because written approval is, not required?
For the record only for DWQ
401 Certification:
❑ Yes ❑X No
For the record only for Corps Permit:
❑X Yes ❑ No
1f.
Is payment into a mitigation bank or in -lieu fee program proposed for
mitigation of impacts? If so, attach the acceptance letter from mitigation bank
or in -lieu fee program.
❑ Yes ❑X No
1g.
Is the project located in any of NC's twenty coastal counties. If yes, answer 1h
below.
❑ Yes ❑X No
1h. Is the project located within a NC DCM Area of Environmental Concern (AEC)?
❑ Yes ❑X No
2.
Project Information
2a.
Name of project:
COR Project 400195, Swann Street Sanitary Sewer Replacement and Relocation
2b.
County:
Wake
2c.
Nearest municipality / town:
City of Raleigh
2d. Subdivision name:
2e.
NCDOT only, T.I.P. or state project no:
pr-nmll fm.
3.
Owner Information
3a.
Name(s) on Recorded Deed:
3b.
Deed Book and Page No.
3c.
Responsible Party (for LLC if
applicable):
City of Raleigh (Public Utilities Department) QUALITY
STORMWATER PERMITTING
3d. Street address:
One Exchange Plaza, Suite 620
3e.
City, state, zip:
Raleigh, NC 27602
3f.
Telephone no.:
919 - 996 -3476
3g. Fax no.:
919 - 996 -1866
3h. Email address:
Page 1 of 10
PCN Form —Version 1.4 January 2009

4. Applicant Information (if different from owner)
4a. Applicant is:
❑X Agent ❑ Other, specify:
4b. Name:
4c. Business name
(if applicable):
4d. Street address:
4e. City, state, zip:
4f. Telephone no.:
4g. Fax no.:
4h. Email address:
5. Agent/Consultant Information (if applicable)
5a. Name:
Matthew W. Watt, PE
5b. Business name
(if applicable):
Dewberry Engineers Inc. (Dewberry)
5c. Street address:
2301 Rexwoods Drive Suite 200
5d. City, state, zip:
Raleigh, NC 27607
5e. Telephone no.:
919 - 424 -3749
5f. Fax no.:
919- 881 -9923
5g. Email address:
mwatt @dewberry.com
Page 2 of 10

B.
Project Information and Prior Project History
1.
Property Identification
1a. Property identification no. (tax PIN or parcel ID):
0795788016, 0795777987, 0795786059, 0795786296
1 b. Site coordinates (in decimal degrees):
T Latitude: 35.8327
Longitude: -78.6702
1c.
Property size:
2.49 acres
2.
Surface Waters
2a.
Name of nearest body of water to proposed project:
Crabtree Creek
2b. Water Quality Classification of nearest receiving water:
C;NSW
2c.
River basin:
Neuse
3.
Project Description
3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this
application:
See Attachment A - Additional Information
3b.
List the total estimated acreage of all existing wetlands on the
property: 0
3c.
List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: 0
3d. Explain the purpose of the proposed project:
See Attachment A - Additional Information
3e. Describe the overall project in detail, including the type of equipment to be used:
See Attachment A - Additional Information
4.
Jurisdictional Determinations
4a.
Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property /
project (including all prior phases) in the past?
❑ Yes ❑ No ❑X Unknown
Comments:
4b.
If the Corps made the jurisdictional determination, what type
of determination was made?
El Preliminary El Final
4c.
If yes, who delineated the jurisdictional areas?
Name (if known):
Agency /Consultant Company:
Other:
4d.
If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
5.
Project History
5a.
Have permits or certifications been requested or obtained for
this project (including all prior phases) in the past?
❑ Yes ❑ No ❑X Unknown
5b. If yes, explain in detail according to "help file" instructions.
6.
Future Project Plans
6a.
Is this a phased project?
❑ Yes ❑X No
6b. If yes, explain.
Page 3 of 10
PCN Form — Version 1.4 January 2009

C. Proposed Impacts Inventory
1. Impacts Summary
1 a. Which sections were completed below for your project (check all that apply):
❑ Wetlands ❑X Streams — tributaries ❑X Buffers ❑ Open Waters ❑ Pond Construction
2. Wetland Impacts
If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted.
2a.
Wetland impact
number
Permanent (P) or
Temporary
2b.
Type of impact
2c.
Type of wetland
2d.
Forested
2e.
Type of jurisdiction
Corps (404,10) or
DWQ (401, other)
2f.
Area of
impact
(acres)
W1
Choose one
Choose one
Yes /No
-
V1/2
Choose one
Choose one
Yes /No
-
W3
Choose one
Choose one
Yes /No
-
W4
Choose one
Choose one
Yes /No
-
W5
Choose one
Choose one
Yes /No
-
W6
Choose one
Choose one
Yes /No
-
2g. Total Wetland Impacts:
2h. Comments:
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted.
3a.
Stream impact
number
Permanent (P) or
Temporary (T)
3b.
Type of impact
3c.
Stream name
3d.
Perennial (PER) or
intermittent (INT)?
3e.
Type of
jurisdiction
3f.
Average
stream
width
(feet)
3g.
Impact
length
(linear
feet)
S1 T
Stream Crossing
UT to Crabtree Creek
INT
DWQ
8
40
S2
Choose one
_
S3
Choose one
_
S4 -
Choose one
S5
Choose one
S6 -
Choose one
3h. Total stream and tributary impacts
40
3i. Comments:
Sanitary Sewer crossing will be installed a minimum of 3 feet below stream bed There will be no aerial structure upon completion of construction.
Page 4 of 10
PCN Form — Version 1.4 January 2009

4. Open Water Impacts
If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of
the U.S. then indiv dually list all open water impacts below.
4a.
Open water
impact number
Permanent (P) or
Temporary
4b.
Name of waterbody
(if applicable)
4c.
Type of impact
4d.
Waterbody
type
4e.
Area of impact (acres)
01
Choose one
Choose
02
Choose one
Choose
03 -
Choose one
Choose
04
Choose one
Choose
4f. Total open water impacts
4g. Comments:
5. Pond or Lake Construction
If pond or lake construction proposed, the complete the chart below.
5a.
Pond ID number
5b.
Proposed use or
purpose of pond
5c.
Wetland Impacts (acres)
5d.
Stream Impacts (feet)
5e.
Upland
(acres)
Flooded
Filled
Excavated
Flooded
Filled
Excavated
P1
Choose one
P2
Choose one
5f. Total:
5g. Comments:
5h. Is a dam high hazard permit required?
❑ Yes ❑ No If yes, permit ID no:
5i. Expected pond surface area (acres):
5j. Size of pond watershed (acres):
5k. Method of construction:
6. Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts
below. If any impacts require mitigation, then you MUST fill out Section D of this form.
6a. Project is in which protected basin?
❑X Neuse ❑ Tar - Pamlico ❑ Catawba ❑ Randleman ❑ Other:
6b.
Buffer Impact
number—
Permanent (P) or
Temporary
6c.
Reason for impact
6d.
Stream name
6e.
Buffer
mitigation
required?
6f.
Zone 1
impact
(square
feet )
6g.
Zone 2
impact
(square
feet
131 T
Easement Access
UT to Crabtree Creek
No
1,550
2,910
B2 T
Easement Access
UT to Crabtree Creek
No
6,066
3,409
B3 -
Yes /No
B4 -
Yes /No
B5 -
Yes /No
B6 -
Yes /No
6h. Total Buffer Impacts:
7,616
6,319
6i. Comments: Sanitary sewer easement has not been maintained within the last 10 years.
Page 5 of 10

D. Impact Justification and Mitigation
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
A segment of 8" ductile iron sanitary sewer parallel to the stream had become exposed due to stream bed erosion. This segment will be cut, capped,
and abandoned in- place. A new segment of 8" ductile iron sanitary sewer will be installed perpendicular to the stream and underneath the streambed
so that there are no aerial crossings in this area. Additional 8" ductile iron pipe and 2 manholes will be installed to make the necessary connections to
existing gravity sewer. A segment of sanitary sewer downstream of the crossing will be replaced in -place at a lower elevation to facilitate gravity flow.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
Silt fencing will be installed around all disturbed areas prior to beginning work to minimize sedimentation into the river. A temporary stream bypass will
be installed in ensure all work occurs in the dry. A sewer pump around will be used to keep the sanitary sewer line empty during construction.
Placement of rip rap will be kept to the minimum extents possible. Where rip rap is not used, sloped areas will be stabilized with coir matting and
reseeded to restore vegetation. Upon completion of work, disturbed areas will be seeded and mulched.
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a. Does the project require Compensatory Mitigation for
impacts to Waters of the U.S. or Waters of the State?
❑ Yes ❑X No
2b. If yes, mitigation is required by (check all that apply):
❑ DWQ ❑ Corps
2c. If yes, which mitigation option will be used for this
project?
❑ Mitigation bank
❑Payment to in -lieu fee program
❑ Permittee Responsible Mitigation
3. Complete if Using a Mitigation Bank
3a. Name of Mitigation Bank:
3b. Credits Purchased (attach receipt and letter)
Type: Choose one
Type: Choose one
Type: Choose one
Quantity:
Quantity:
Quantity:
3c. Comments:
4. Complete if Making a Payment to In -lieu Fee Program
4a. Approval letter from in -lieu fee program is attached.
❑ Yes
4b. Stream mitigation requested:
linear feet
4c. If using stream mitigation, stream temperature:
Choose one
4d. Buffer mitigation requested (DWQ only):
square feet
4e. Riparian wetland mitigation requested:
acres
4f. Non - riparian wetland mitigation requested:
acres
4g. Coastal (tidal) wetland mitigation requested:
acres
4h. Comments:
5. Complete if Using a Permittee Responsible Mitigation Plan
5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
Page 6 of 10
PCN Form — Version 1.4 January 2009

6. Buffer Mitigation (State Regulated Riparian Buffer Rules) — required by DWQ
6a. Will the project result in an impact within a protected riparian buffer that requires
Yes OX No
buffer mitigation?
6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the
amount of mitigation required.
6c.
6d.
6e.
Zone
Reason for impact
Total impact
Multiplier
Required mitigation
(square feet)
(square feet)
Zone 1
3 (2 for Catawba)
Zone 2
1.5
6f. Total buffer mitigation required:
6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank,
permittee responsible riparian buffer restoration, payment into an approved in -lieu fee fund).
6h. Comments:
Page 7 of 10

E.
Stormwater Management and Diffuse Flow Plan (required by DWQ)
1.
Diffuse Flow Plan
1a.
Does the project include or is it adjacent to protected riparian buffers identified
Yes ❑ No
within one of the NC Riparian Buffer Protection Rules?
1 b.
If yes, then is a diffuse flow plan included? If no, explain why.
Project will not alter diffuse flow patterns.
❑ Yes ❑X No
2.
Stormwater Management Plan
2a.
What is the overall percent imperviousness of this project?
0
2b.
Does this project require a Stormwater Management Plan?
❑ Yes No
2c.
If this project DOES NOT require a Stormwater Management Plan, explain why:
A Stormwater management plan is not required by this NWP.
2d.
If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan:
2e.
Who will be responsible for the review of the Stormwater Management Plan?
3.
Certified Local Government Stormwater Review
3a.
In which local government's jurisdiction is this project?
City of Raleigh
❑ Phase II
3b.
Which of the following locally- implemented stormwater management programs
❑ NSW
apply (check all that apply):
❑ USMP
❑ Water Supply Watershed
n Other: None
3c.
Has the approved Stormwater Management Plan with proof of approval been
❑ Yes ❑ No
attached?
4.
DWQ Stormwater Program Review
[]Coastal counties
❑HQW
4a.
Which of the following state - implemented stormwater management programs apply
❑ORW
(check all that apply):
❑Session Law 2006 -246
❑X Other: None
4b.
Has the approved Stormwater Management Plan with proof of approval been
❑ Yes ❑ No
attached?
5.
DWQ 401 Unit Stormwater Review
5a.
Does the Stormwater Management Plan meet the appropriate requirements?
❑ Yes ❑ No
5b.
Have all of the 401 Unit submittal requirements been met?
❑ Yes ❑ No
Page 8 of 10
PCN Form — Version 1.4 January 2009

F. Supplementary Information
1. Environmental Documentation (DWQ Requirement)
1a. Does the project involve an expenditure of public (federal /state/local) funds or the
❑X Yes
❑ No
use of public (federal /state) land?
1 b. If you answered "yes" to the above, does the project require preparation of an
environmental document pursuant to the requirements of the National or State
❑ Yes
❑X No
(North Carolina) Environmental Policy Act (NEPA/SEPA)?
1c. If you answered "yes" to the above, has the document review been finalized by the
State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval
letter.)
❑ Yes
❑ No
Comments:
2. Violations (DWQ Requirement)
2a. Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated
Wetland Rules (15A NCAC 2H.1300), DWQ Surface Water or Wetland Standards,
❑Yes
❑X No
or Riparian Buffer Rules (15A NCAC 2B .0200)?
2b. Is this an after - the -fact permit application?
❑Yes
❑X No
2c. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s):
3. Cumulative Impacts (DWQ Requirement)
3a. Will this project (based on past and reasonably anticipated future impacts) result in
❑Yes
❑X No
additional development, which could impact nearby downstream water quality?
3b. If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the
most recent DWQ policy. If you answered "no," provide a short narrative description.
Project will not alter the capacity of the sanitary sewer collection system.
4. Sewage Disposal (DWQ Requirement)
4a. 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.
No wastewater will be generated during this project.
Page 9 of 10
PCN Form — Version 1.4 January 2009

5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or
❑ Yes ❑ No
habitat?
5b. Have you checked with the USFWS concerning Endangered Species Act
❑ Yes ❑ No
impacts?
5c. If yes, indicate the USFWS Field Office you have contacted.
-
5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as essential fish habitat?
❑ Yes ❑ No
6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat?
7. Historic or Prehistoric Cultural Resources (Corps Requirement)
7a. Will this project occur in or near an area that the state, federal or tribal
governments have designated as having historic or cultural preservation
❑ Yes ❑ No
status (e.g., National Historic Trust designation or properties significant in
North Carolina history and archaeology)?
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA- designated 100 -year floodplain?
❑ Yes ❑X No
8b. If yes, explain how project meets FEMA requirements:
8c. What source(s) did you use to make the floodplain determination?
FEMA FIRM Map #3720079500J, Effective May 2, 2006
Ruffin L. Hall
City Manager
City of Raleigh
A a
A4
Post Office Box 590
App, nt/Agent's Signature
Raleigh. North Carolina 27602'•
Date
(Agent's signature is valid only if an authorization
letter from the applicant is provided.)
Page 10 of 10

Attachment A - Additional Information
3.3.a Describe existing conditions and land use:
A section of ductile iron sewer pipe (DIP), including two bell joints, is exposed within the stream channel due
to erosion of the stream bed. Erosion of the stream bank has also threatened a sanitary sewer manhole.
Portions of the sewer easement have not been maintained within the last 10 years. Land use in this area is
residential and recreational.
3.3.d Explain the purpose of the proposed project
The purpose of the proposed project is to reroute the exposed DIP away from the stream to minimize future
impacts to the sanitary sewer due to natural stream channel movements, while still maintaining gravity flow.
3.3.e. Detailed project description including equipment to be used
The sanitary sewer line is located within an easement that has not been maintained in the last 10 years. The 8"
DIP sanitary sewer pipe will be rerouted so that it will cross the stream perpendicularly and at a lower
elevation, thereby allowing for additional protective cover. The preliminary profile for the proposed
realignment would provide approximately 1 foot of cover. The sanitary sewer line will be encased in a 16"
ductile iron pipe to provide additional protection from future streambed erosion.
To achieve the proposed alignment, the pipe exiting the upstream manhole will be replaced and routed to the
northeast to a new manhole to be located on City of Raleigh property (Parks, Recreation and Cultural
Resources Department), just outside the Neuse River Buffer Zone 1. New pipe will be routed from the new
manhole to a second new manhole, also located on City of Raleigh property (Parks, Recreation and Cultural
Resources Department), just outside the Neuse River Buffer Zone 1. New pipe from this second new manhole
will be routed to the northwest, crossing under the stream and connecting to a third new manhole to be
located on the existing sewer alignment. New pipe will be routed from this manhole to the north along the
alignment of the existing sewer. The existing sewer will be replaced up to the next downstream existing
manhole on Dade Street.
A pump around or coffer dam will be used during construction to ensure all work occurs in the dry.
Construction activity will consist of clearing the area for access to the project location, installing temporary
stream crossings, installing the new manholes, and rerouting the DIP. A site plan is attached with this
application. Conventional construction equipment (hydraulic excavators and dumptrucks) will be used. After
construction is completed, all disturbed areas will be seeded and mulched to restore vegetation. A
construction entrance will be established and silt fences installed to prevent erosion and sedimentation from
disturbed areas.
Project 400195, Swann Street Sanitary Sewer Replacement and Relocation
NWP 12 /WQC 3884 PCN I August 14, 2014

Attachment A - Additional Information
3.3.a Describe existing conditions and land use:
A section of ductile iron sewer pipe (DIP), including two bell joints, is exposed within the stream channel due
to erosion of the stream bed. Erosion of the stream bank has also threatened a sanitary sewer manhole.
Portions of the sewer easement have not been maintained within the last 10 years. Land use in this area is
residential and recreational.
3.3.d Explain the purpose of the proposed project
The purpose of the proposed project is to reroute the exposed DIP away from the stream to minimize future
impacts to the sanitary sewer due to natural stream channel movements, while still maintaining gravity flow.
3.3.e. Detailed project description including equipment to be used
The sanitary sewer line is located within an easement that has not been maintained in the last 10 years. The 8"
DIP sanitary sewer pipe will be rerouted so that it will cross the stream perpendicularly and at a lower
elevation, thereby allowing for additional protective cover. The preliminary profile for the proposed
realignment would provide approximately 1 foot of cover. The sanitary sewer line will be encased in a 16"
ductile iron pipe to provide additional protection from future streambed erosion.
To achieve the proposed alignment, the pipe exiting the upstream manhole will be replaced and routed to the
northeast to a new manhole to be located on City of Raleigh property (Parks, Recreation and Cultural
Resources Department), just outside the Neuse River Buffer Zone 1. New pipe will be routed from the new
manhole to a second new manhole, also located on City of Raleigh property (Parks, Recreation and Cultural
Resources Department), just outside the Neuse River Buffer Zone 1. New pipe from this second new manhole
will be routed to the northwest, crossing under the stream and connecting to a third new manhole to be
located on the existing sewer alignment. New pipe will be routed from this manhole to the north along the
alignment of the existing sewer. The existing sewer will be replaced up to the next downstream existing
manhole on Dade Street.
A pump around or coffer dam will be used during construction to ensure all work occurs in the dry.
Construction activity will consist of clearing the area for access to the project location, installing temporary
stream crossings, installing the new manholes,.and rerouting the DIP. A site plan is attached with this
application. Conventional construction equipment (hydraulic excavators and dumptrucks) will be used. After
construction is completed, all disturbed areas will be seeded and mulched to restore vegetation. A
construction entrance will be established and silt fences installed to prevent erosion and sedimentation from
disturbed areas.
Project 400195, Swann Street Sanitary Sewer Replacement and Relocation
NWP 12 /WQC 3884 PCN I August 19, 2014

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Swann Street Sewer Relocation
Figure 1: Facing South -West. A section of 8" DIP, including two bell joints, has become exposed due to
stream bed erosion.
Figure 2: Facing South -West

Swann Street Sewer Relocation
Figure 3: Facing South -West. Photo shows exposed 8" sanitary sewer line and manhole that have
become threatened by steam channel erosion.
Figure 4: Facing West. Stream bank erosion threatens the integrity of the sanitary sewer manhole.

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