20070661 Ver 1_More Info Received_20070524

Ht1ZENAND SA~yIIt
Envlror,mentat Engineers 3 Selentlste
4011 Westchase Boulwsrp, Suits 500
Ratetgh, MC 2Tt307
(919) 8333-7'!52 FAX (919) 8:33-t82tT
To 401 Oversight/Express Permitting Unit
North Carolina Division of Water
Quality
1650 Crabtree Blvd. Suite 250
Raleigh, NC 27604
WE ARE SENDING YOU
^ Shoo drawinos
^ Coov of letter
^ Attached ^ Under separate cover via .
^ Prints ^ Plans
^ Change order ^
COPIES DATE NO. DESCRIPTION
7 5/15/07 Revised PCN for DWQ Project # 07-0661, City of Raleigh Transfer Facility
_`
THESE ARE TRANSMITTED as checked below:
REMARKS
^ For aooroval
^ For vour use
^ As requested
^ For review and comment
^ FOR BIDS DUE
Ms. Karoly,
^ Furnish as submitted ^ Resubmit conies for aooroval
^ Furnish as corrected ^ Submit conies for distributior
^ Revise and resubmit ^ Return corrected prints
^ For xec~tinn

19 ^ PRINTS RETURNED AFTER LOAN TO US
Attached are seven copies of the revised Pre-Construction Notification for NWP-14 for the City of Raleigh
Solid Waste Transfer Facility. The PCN was originally submitted in March 2007. We received a Request
for Additional Information from your office on Apri124, 2007. The revised PCN includes responses to all
review comments.
If you have any questions or require additional information, please contact us.
COPY TO Jamie Shern, USACE Raleigh ,.., r ,~ ~,-~.,~ t a' r ' ~: t ~~
Fred Battle, COR SWS !lt ~. ~. ; ., , ~ ~, e ~' jj SIGNED:
Bill Black, COR ~~~ i'
File ~~ ~~~! R~ y ~ ~ l~ j
a~'t.;. i_j'hi~!.:' .;,.; ^~Tr_;~'raAial:~; r p >;?RA.~SGH
the following items:
^ Samples ^ Specifications

~'~ - O to
Submittal Number:
John A. Bove, P.E.
If enclosures are not as noted, kindly notify us at once.

HAZEN AND SAWYER
Environmental Engineers & Scientists
Ms. Cyndi Karoly
401 Oversight/Express Permitting Unit
N.C. Division of Water Quality
1650 Crabtree Blvd. Suite 250
Raleigh, NC 27604
Dear Ms. Karoly,

oRj~IN~~ v
e
4011 WestChase
Bl
d.
Suite 500
Raleigh, NC 27607
[phone]
[phone] (Fax)
May 15, 2007
Re: Pre-Construction Notification for
Nationwide Permit No. 14
City of Raleigh Solid Waste Transfer Facility
Raleigh, Wake County, NC
H&S No. 30579-000
DWQ Project # 07-0661
On behalf of the City of Raleigh Department of Solid Waste Services, we are pleased to
submit seven copies of the revised Pre-Construction Notification (PCN) and supporting
documentation for the construction of the City's Solid Waste Transfer Facility. The site is
owned by the City of Raleigh, who has retained Hazen and Sawyer to prepare this Notification.
Hazen and Sawyer has subcontracted with EcoScience Corporation to complete the delineation
of jurisdictional areas. The Owner contact for this project is Mr. Fred Battle, Director of Solid
Waste Services. He can be contacted at 919-831-6073.
This PCN was first submitted on March 28, 2007 along with a check for $200 to cover
the review fee. The assigned DWQ Project # is 07-0661. A Request For More Information letter
was prepared by DWQ on April 24, 2007 which identified three items where additional
information was requested. Each item is addressed below.
Comment #1 -Please clearly indicate all Zone 1 and Zone 2 buffers, and impacts to these, on the
site plan.
Response #1 -The limits of the Zone 1 and Zone 2 Riparian Buffers, based upon the limits
established by NCDWQ in the field call dated March 6 2007; have been added to the attached
Drawing G-6 -Site Plan and Figure 4 -Jurisdictional Impact Area Plan. The impacts are shown
and tabulated on the attached Figure 4 -Jurisdictional Impact Area Plan.
Comment #2 -Please provide cross section details showing the provisions for aquatic life
passage. A bypass culvert type system is recommended.
IJew York, NY • Philadelphia, PA • Paleigh, NC • Charlotte, NC • Greensboro, NC • Charleston, SC • Atlanta. GA • Faulax, VA • Baltimore, MD • Cincinnati, Oli • Hollywood. FL • Duca Raton. FL • Sarasota, FL • Miarni. FL

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HAZEN AND SAWYER
Ms. Cyndi Karoly, NCDWQ
May 15, 2007
Page 2 of 5
Response #2 -The intent of this comment was unclear. During a telephone conversation with
Lia Myott of the DWQ on Apt7l 27, 2007, Ms. Myott clarified the comment. There is concern by
DWQ that during low flow periods inadequate flow will be conveyed by the culverts to support
passage of aquatic life even though the then proposed dual 36-inch culverts were buried about fl-
inched below the base of the channel. The 36-inch diameter culverts were selected to provide the
desired clearance between the top of the pipe and the base of the pavement section. It was agreed
that if the design flow could be carried using a single 48-inch culvert that the proposed dual
culverts could be replaced by a single culvert and the concern .would be resolved. Hazen and
Sawyer has determined that a single 48-inch diameter RCP can carry the design flow. The invert
of the culvert will be 1-foot below the bottom of the existing channel. The crown of the pipe will
be at the same elevation as the existing culvert, so no modifications to the proposed roadway
section will be required. The attached drawings, including plans and cross sections, have been
revised to show the new 48-inch culvert. A listing of the attached drawings and figures are
provided at the end of this Teter.
Conznzent #3 -Diffuse Flow: In the Neuse River Basin, you must show that your site is
providi~zg diffuse flow as required by (1SA NCAC 02B .0233(5)]. Please show your diffuse flow
measures on your pla~z sheet, czrzd provide.all applicable work sheets, and a sig~zed and ~zotarized
operations a~zd mni~ztenance agreement.. ~ ~ .
Response #3 -After discussions with John Holley, Jr., Regional Engineer at the Land Quality
Section, a.level spreader has been added at the terminus, of the proposed lined channel to the west
of the existing roadway. This level spreader is shown on both Drawing G-6 -Site Plan and
Figure 4 -Jurisdictional Impact Area Plan. A detail of the level spreader is provided on the
attached Figure 8. A signed and notarized opet•ations and maintenance agreement and calculation
work sheets are provided in Attachment 3. Diffuse flow is provided for the entire site.
Stream stabilization downstream of the new culvert is provided by the addition of a Turf
Reinforcement Mat (TRM) to the banks. Since the discharge velocity for the new, larger culvert
will be lower than that for the existing culvert, and the existing channel shows no signs of
erosion, the stream bottom itself does not need stabilization. This approach was approved by Mr.
John Holley, Jr., Regional Engineer at the Land Quality Section and is included in the Sediment
and Erosion Control Plan for the site. Details of the bank stabilization are provided on the
attached Figure 7.
Project Background
The proposed Solid Waste Transfer Facility is to be constructed on part of the City's
closed Wilders Grove Landfill site. The Transfer Facility is located on a part of the site
previously owned by Pike Electric Co. and developed in the 1970's. The City purchased the
parcel, and through recombination survey, added it to the 259-acre Wilders Grove Landfill

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HAZEN AND SAWYER
Ms. Cyndi Karoly, NCDWQ
May15, 2007
Page 3 of 5
parcel. There is no waste disposed on the Transfer Facility site. No permits for jurisdictional
areas have been issued for the Wilders Grove Landfill site.
The development includes widening of the existing paved access road and replacing and
lengthening the existing culvert to accommodate truck traffic and to provide safe sight lines for
drivers as they enter the facility. The roadway must be widened and reconstructed to safely serve
the projected truck traffic. The existing roadway and culvert are in disrepair and cannot safely be
incorporated into the project in their current state. The existing 76-ft long 36-inch diameter
culvert is being replaced by a single 48-inch diameter culvert to safely pass the 25-year 24-hour
design storm. The new culvert will be extended 1-foot below the invert of the existing channel.
The total length of the new culvert will be 110-feet. The existing access road crosses a stream
which is fed from existing roadside ditches and from the discharge of a sediment basin..
Proposed Impacts
The jurisdictional areas were determined by EcoScience Corporation in February 2007.
A very low quality naturalized jurisdictional stream, originally excavated as the culvert
discharge, is identified in parts of the project area.. Replacement of the existing culvert and
widening of the road will result in the following impacts:
• Streams: 75-linear feet (0.005-acre)'
. • Wetlands: None ~ . ~ . ~.
• Riparian Buffers:. Zone 1: 1755.square feet Zone 2: 1320 square feet
Riparian Buffer limits were established during a NCDWQ field call dated March 6, 2007.
This information is included in this submittal. The Riparian Buffer impacts listed above include
the following exempt impact in accordance with 15A NCAC 2B .0233(6):
• In-stream temporary erosion and sediment control measures for work within a
stream channel (Zone 1)
• Perpendicular crossings that disturb equal to or less than 40-linear feet of
riparian buffer with a maintenance corridor of less than 10-feet in width
(Zone I )
• Road crossings that impact equal to or less than 40-linear feet of riparian
buffer (Zone 1 and Zone 2)
Impact Justification (Avoidance azzd Minimization)
The proposed impacts to jurisdictional areas are minimal and represent the minimum
practical impact for the proposed project. The proposed culvert is the minimum length needed to
serve the new roadway. Minimal widening of the existing channel is anticipated to allow

HAZEN AND SAWYER
Ms. Cyndi Karoly, NCDWQ
May15, 2007
Page 4 of 5
installation of the new culvert, but only in the naturalized channel formed by excavation for the
original culvert. Stabilization of the stream banks down stream of the new culvert have been
approved by the Land Quality Section and represent the minimum impacts while providing the
required degree of stabilization.
In order to minimize the impacts to jurisdictional areas from additional earth fill
associated with the new roadway, the new roadway will be constructed at the same elevation as
the existing roadway.
Mitigation
Due to the very low quality of jurisdictional stream impacted and the very low total impact to the
stream from non-exempt applications, no mitigation is proposed. Riparian Buffer impacts are
below the notification thresholds. .
Information Inclicded with the Pre-Construction Notification for Nationwide Permit No. 14
. ..'The following information is attached and completes this s~ibmittal:
• Pre-Construction Notification for Nationwide Permit No. 14
• Figure 1 -Vicinity Map
• Figure 2 -Site Location Map (USES Quad Sheet)-
•:• Figure 3 -.Site Location on Soil Survey Map..
• Drawing G-6 -Site Plan (revised)
• Figure 4 =Jurisdictional Impact Area Plan (revised)
•:~ Figure 5 -Longitudinal Culvert Cross Section
s• Figure 6 -Culvert Replacement Cross Section
s• Figure 7 -Culvert Crossing Stream Slope Protection Plan and Section (new)
• Figure 8 -Level Spreader Detail (new)
• Attachment No. l -Environmental Investigation Report prepared by EcoScience Corporation
• Attachment No. 2 - On-Site Riparian Buffer Determination letter from NCDWQ dated
March 6, 2007
:• Attachment No. 3 -Level Spreader System Operation and Maintenance Agreement (new)
:• SEPA Finding of No Significant Impact Determination dated December 17, 2001

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HAZEN AND SAWYER
Ms. Cyndi Karoly, NCDWQ
May15, 2007
Page 5 of 5
We will provide your office with any assistance required during your review and
processing of this Pre-Construction Notification. It should be noted that access to the site is
controlled by a locked gate and pre-arrangement with the City of Raleigh is required. Hazen and
Sawyer will gladly meet with you at the site and an•ange for the gate to be opened by authorized
City staff when a field visit is scheduled. Representatives of the City of Raleigh, Hazen and
Sawyer and EcoScience are all available to meet with you at your convenience to conduct a field
visit or further discuss this submittal. In the interim, if you have any questions or require
additional information, please contact us.
Very truly youurs,'
HAZEN AND SAWYER, P.C.
~~~
J n A. Bove, PE
Associate
Attachments.: Revised PCN (seven copies)
cc: Jamie Shern, USACE Raleigh Regulatory Field Office
Fred Battle, City of Raleigh Solid Waste Services
Bill Black, City of Raleigh Construction Management
Sandy Smith, EcoScience Corp

Office Use Only' Form Version March OS
USACE Action ID No. DWQ No. 01 - O to to ~
(If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".)
I. Processing
1. Check all of the approval(s) requested for this project:
® Section 404 Permit ^ Riparian or Watershed Buffer Rules
^ Section 10 Permit ^ Isolated Wetland Permit from DWQ
® 401 Water Quality Certification ^ Express 401 Water Quality Certification
2. Nationwide, Regional or General Permit Number(s) Requested: NWP 14
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 Ecosystem Enhancement Program (NCEEP) is proposed
for mitigation of impacts, attach the acceptance letter from NCEEP, 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 .^. ,,.~ ,,~ f ~ ~~
II. Applicant Information '" # -~
P~~ ~Y ~° ~ ZO u
1. Owner/Applicant Information
~~,vra - ~n,;~ , ~~ ~,, ~;
Name: Fred Battle, Director Department of Solid Waste Service~F;, A~i~z, y~,~r, c r+~;,,a~s ~„_~ ~~Sr~tl~~i
Mailing Address: City of Raleigh Solid Waste Services
400 West Peace Street
Raleigh, NC 27602
Telephone Number: 919-831-6073 Fax Number: 919-831-6632
E-mail Address: Frederick.Battle(a~ci.raleigh.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: John A Bove P.E.
Company Affiliation: Hazen and SavvXer, P.E.
Mailing Address: 4011 Westchase Blvd.
Raleigh, NC 27602
Telephone Number: 919-833-7152 Fax Number: 919-833-1828
E-mail Address: jbove ~hazenandsavryer com
Updated 11/1/2005 Submittal Revised 5-14-07
Page 5 of 14

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: City of Raleigh Solid Waste Transfer Facility
2. T.I.P. Project Number or State Project Number (NCDOT Only): N/A
3. Property Identification Number (Tax PIN): 1724816908
4. Location
County: Wake Nearest Town: Raleigh
Subdivision name (include phase/lot number): N/A
Directions to site (include road numbers/names, landmarks, etc.): East on US 641 right
south) on Corporation Parkway Site is located approximately 2000-ft south of
terminus of Corporation Pkwy at locked gate. City of Raleigh personnel required to
open gate
5. Site coordinates (For linear projects, such as a road or utility line, attach a sheet
separately lists the coordinates for each crossing of a distinct waterbody.)
• Decimal Degrees (6 digits minimum): 35.7847 °N -78.5703
S
6. Property size (acres):
that
oW
7. Name of nearest receiving body of water: Crabtree Creek
8. River Basin: Neuse 03-04-02
(Note -this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http://h2o.enr.state.nc.us/admin/maps/.)
9. Describe the existing conditions on the site and general land use in the vicinity of the project
at the time of this application: Site is dart of closed City of Raleigh Municipal Solid
Waste Landfill and is currently being used for maintenance and storage opa-ations for
the City of Raleigh Site was previously owned by Pike Electric Co. and used as
Updated 11/1/2005
Page 6 of 14
Submittal Revised 5-14-07

operations center. Existing roadway is sole access point to section of site proposed for
use as a Solid Waste Transfer Facility.
10. Describe the overall project in detail, including the type of equipment to be used: Existing
20-ft wide roadway is to be widened to 45-ft to more safely and efficiently accommodate
expected Transfer Facility truck traffic. Existing culvert is to be upgraded to manage
surface water runoff and lengthened to accommodate widened access road. New 8-inch
water line is to be installed at upstream end of culvert.
11. Explain the purpose of the proposed work: Purpose is to support construction of Solid
Waste Transfer Facility to serve City of Raleigh, adjacent cities, incorporated areas of
Wake Count private haulers, businesses and industries. Existing roadway is not
adequate to safely manage expected traffic. Road improvement is needed, including
widening, upgrading of drainage and new pavement. The City is also extending a new
water line to the proposed facility.
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 previous jurisdictional determinations on site.
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 expected.
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. Each impact must be
listed separately in the tables below (e.g., culvert installation should be listed separately from
riprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts,
permanent and temporary, must be listed, and must be labeled and clearly identifiable on an
accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial)
Updated 11 / 1 /2005 Submittal Revised 5-14-07
Page 7 of 14

~ should 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 mitigation, list and describe the impact in Section VIII below. If additional
space is needed for listing or description, please attach a separate sheet.
• Provide a written description of the proposed impacts:
1. The development includes widening of the existing paved access road and replacing
and lengthening the existing culvert to accommodate truck traffic and to provide safe sight
• lines for drivers as they enter the facility. The roadway must be widened and
• reconstructed to safely serve the projected truck traffic. The existing roadway and culvert
are in disrepair and cannot safely be incorporated into the project in their current state.
The existing 76-ft long 36-inch diameter culvert is being replaced by a single 48-inch
• diameter culvert to safely pass the 25-year 24-hour design storm. The new culvert will be
• extended 1-foot below the invert of the existing channel. The total length of the new culvert
will be 110-feet. Stream and buffer impacts result from the culvert extension, roadway
widening, installation of a waterline, temporary in-stream erosion control measures, and
outlet stream bank stabilization. No wetlands are impacted by the proposed construction.
i See attached Figure 4.
3. Individually list wetland impacts. Types of 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.
i
Wetland Impact
Site Number
(indicate on map)
Type of Impact Type of Wetland
(e.g., forested, marsh,
herbaceous, bog, etc.) Located within
100-year
Floodplain
es/no Distance to
Nearest
Stream
(linear feet Area of
Impact
(acres)
NONE NONE

Total Wetland Impact (acres) NONE
1. List the total acreage (estimated) of all existing wetlands on the property: N/A
2. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary
impacts. Stream impacts include, but are not limited to placement of fill or diverts, dam
construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib
walls, 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. To calculate acreage, multiply length X width, then divide by 43,560.
Updated I l/1/2005
Page 8 of 14
Submittal Revised 5-14-07

Stream Impact
Perennial or Average Impact Area of
Number* Stream Name Type of Impact
Intermittent? Stream Width Length Impact
(indicate on ma Before Im act linear feet) (acres
1 Unnamed tributary ~-Stream Rip Rap perennial
3
f 15 0.001
Inlet (temporary) -
t
2 Unnamed tributary Culvert (upstream perennial
3
ft 5 <0.001
end of extension) -
Culvert
3 Unnamed tributary (downstream end Perennial 3-ft 35 0.002
of extension)
4 Unnamed tributary Culvert Outlet perennial
3-ft 20 0.001
Bank Protection
Total Stream Impact (by length and acreage) 75 0.005
* See attached Figure 4 for Stream Impact number and locations.
3. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.). Open water impacts include, but are not limited to
fill, excavation, dredging, flooding, drainage, bulkheads, etc.
Open Water Impact

Site Number

(indicate on ma
Name of Waterbody

(if applicable)

Type of Impact Type of Waterbody

(lake, pond, estuary, sound, bay,

ocean, etc. Area of

Impact

(acres
NONE

Total Open Water Impact (acres) NONE
4. List the cumulative impact to all Waters of the U.S. resultin;; from the protect:
Stream Im act (acres): 0.005
Wetland Im act (acres): 0
O en Water Im act (acres): 0
Total Im act to Waters of the U.S. (acres) 0.005
Total Stream Im act (linear feet): 75
5. Isolated Waters
Do any isolated waters exist on the property? ®Yes ^ No
Describe all impacts to isolated waters, and include the type of water (wetland or stream) and
the size of the proposed impact (acres or linear feet). Please note that this section only
applies to waters that have specifically been determined to be isolated by the USACE.
No impacts to isolated waters.
6. Pond Creation
Updated 11/1/2005 Submittal Revised 5-14-07
Page 9 of 14

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.):
Current land use in the vicinity of the pond:
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 maybe 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. Proposed road improvements
represent the minimum impact to the stream while providing adequate roadwaywidth and
sight distances (sight triangle) to safely accommodate expected two-way truck traffic.
Alignment of existing road is maintained to extent practical to minimize need to further
lengthen culvert Existing roadway elevation is maintained in order to minimize impacts
from earthwork related to the roadway embankment. Extended culvert is increased in
diameter to result in minimum impact on adjacent banks.
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 January 15, 2002, 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
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.
Updated 11/1/2005 Submittal Revised 5-14-07
Page 10 of 14

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 NCEEP 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 (see DWQ website for most current
version.).
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 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.
No mitigation is proposed. Stream channel is ver ly °w quality and low function,
manmade channel draining a stormwater basin and roadside ditches. Stream is lacking
pattern, structure and has a homogenous stream bed of sand and gravel. Stream has
limited habitat for macrobenthic fauna.
2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement
Program (NCEEP). Please note it is the applicant's responsibility to contact the NCEEP at
[phone] to determine availability, and written approval from the NCEEP indicating
that they are will to accept payment for the mitigation must be attached to this form. For
additional information regarding the application process for the NCEEP, check the NCEEP
website at http://www.nceep.net/pages/inlieureplace.htm. If use of the NCEEP is proposed,
please check the appropriate box on page five and provide the following information:
Amount of stream mitigation requested (linear feet): N/A
Amount of buffer mitigation requested (square feet):
Amount of Riparian wetland mitigation requested (acres):
Amount ofNon-riparian wetland mitigation requested (acres):
Amount of Coastal wetland mitigation requested (acres):
IX. Environmental Documentation (required by DWQ)
1. Does the project involve an expenditure of public (federal/state/local) funds or the use of
public (federal/state) land? Yes ® No ^
2. 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 ^
Updated 11/1/2005 Submittal Revised 5-14-07
Page 11 of 14

3. 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.
1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Neuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC
2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please
identify )? Yes ® No ^
2. If "yes", 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
(s uare feet Multiplier Required
Miti ation
1 1755** 3 (2 for Catawba) None
2 1320** 1.5 None
Total 3075* * 7245 None
* Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an
additiona120 feet from the edge of Zone 1.
** Impacts listed include exempt applications under 15A NCAC 2B .0233(6). See
attached Figure 4 for impact locations and types
3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e.,
Donation of Property, Riparian Buffer Restoration /Enhancement, or Payment into the
Riparian Buffer Restoration Fund). Please attach all appropriate information as identified
within 15A NCAC 2B .0242 or .0244, or .0260. No mitigation is required since impacts do
not exceed re~ulatorv thresholds. Zone 1 Impacts for in-stream erosion control and
perpendicular water line crossing (Impact Area 1) are exempt applications. Road
crossing has less than 40-ft total buffer impact and is exempt application. Note that
proposed buffer impacts based upon NCDWQ On Site Determination dated March 6,
2007 (DWQ EXP# 07-0330). See attached Figure 4 for impact type and locations.
Updated 11/1/2005 Submittal Revised 5-14-07
Page 12 of 14

XI. Stormwater (required by DWQ)
Describe impervious acreage (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. If percent impervious surface exceeds 20%, please provide calculations
demonstrating total proposed impervious level. Existing impervious acreage is 5.4% of total
site area Proposed impervious surface resulting from this project increases impervious
surface to 6 7% of total site area (a 1.3% increase). Erosion controls to be installed in
accordance with NCDENR Land Quality Section.
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.
Wastewater generated on project site is conveyed to the City's sanitary sewer system by
means of a dedicated pump station
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. Cumulative Impacts (required by DWQ)
Will this project (based on past and reasonably anticipated future impacts) result in additional
development, which could impact nearby downstream water quality? Yes ^ No
If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with
the most recent North Carolina Division of Water Quality policy posted on our website at
http://h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description: Site is
currently developed Proposed improvements will not men any new area for development
or result in further ,~ risdictional impacts.
XV. 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).
Updated 11/1/2005 Submittal Revised 5-14-07
Page 13 of 14

Applicant/Agent's Signature ' ~ Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
Updated 11/1/2005 Submittal Revised 5-14-07
Page 14 of 14

FIGURE 1
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OXFORD
1 I
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85
DURHAM
1 ORANGE
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CHAPEL HILL RALEIGH
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SOLID WASTE
TRANSFER FA ILIT
~~
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401
40 SMITHFIELD 95
50
301
701
10 5 0 5 10 20
~ SCALE IN MILES
I~[AZEN AND SAV'VYER
Environmental Engineers & Scientists
64
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1
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Dwn By: Ckd By:
SITE LOCATION MDT APS FIGURE
~y~If~~~ Date:
Wilders Grove Waste Transfer Facility FEB2005
Access Road Expansion Scale:
EcoScience Wake Count ,North Carolina As sHOwN
Corporation y ESC Project No.:
Raleigh. Nonh Carolina 07-333

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,,{ SO~~ Surv@y '"'al" oate:MDT MC FIGURE
FEB 2007 3
Wilders Grove Solid Waste Transfer Station Scale:
EcoScience Wake County, North Carolina as sHOwN
Corporation ESC Project No.:
Raleigh, Norlh Carolina 07-333

FIGURE 4
I
ZONE 1 RIPARIAN ~e ~`~"~"~"~"~.:.
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IMPACT (SF) ZONE 2
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EXISTING GRADE ~~
PROPOSED ROA W~AY,».»,,.»,».»».».»»»:..,»,»,»:»»...».,:..»»:»»..::.....»»...»,. .»::»»....... ~TJN~G»•RAE}WA~.::».:.»..,,».A»»»..w~.....~.~..~::.,..,»,..».,...:»..TEwNIF?~~A#~:~.:..:R.}p.~..~AP,,.,»,:.:::~v.».::::k::.:.:~::...»~::..::...E
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FIG 6 PROPOSED 8"
WATERLINE
CULVERT SECTION
HORIZONTAL ~ 1 °~ 20' CITY OF RALEIGH SOLID WASTE
VERTICAL - 1 =5 TRANSFER FACILITY
HAZENAND SAWYER CULVERT REPLACEMENT
Environmental Engineers ~ Sclentlsts CROSS S E C TI O N
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EXISTING GRADE
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HAZEN AND SAWYER
Environmental Engineers & Scientists
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CITY OF RALEIGH SOLID WASTE
TRANSFER FACILITY
HAZENAND SAWYER LEVEL SPREADER
Environmental Engineers & Scientists
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EcoScience
1101 Haynes Street Suite ]O1 Raleigh, NC 27604 Telephone: 919.fi2f~.3433 Fax: 919.82A.3S7S
February 9, 2007
Mr. John Bove, P.E.
Hazen and Sawyer, P.C.
4011 WestChase Boulevard
Raleigh, North Carolina 27607
Re: Results of an On-site Environmental Investigation
City of Raleigh Solid Waste Transfer Facility, Wake County, NC
Dear John:
07-333
EcoScience Corporation (ESC) personnel conducted an environmental investigation at the above-
mentioned site on Friday, February 2 and Monday, February 5, 2007. This letter summarizes the
findings of the investigation.
Physical Features
Wilders Grove landfill is located in a developing commercial/industrial area in east Raleigh just
north of Crabtree Creek and east of the I-440 beltline (Figure 1). The area of interest of this
investigation is located in the northeast corner of a facility characterized by a gravel parking lot and
service buildings associated with an existing solid waste transfer facility. The transfer facility is
bounded on all sides by mixed pine/hardwood forest. The specific area of interest of this
investigation (site) is the vicinity of a bend in the access road into the northwest corner of the solid
waste transfer facility yard. The site is focused on the linear depression, upstream and downstream
of a culvert crossing under this bend in the road.
The terrain is characterized by a general slope downward to the south to the floodplain of Crabtree
Creek. A linear depression, oriented in a north-south axis, occurs northeast and southwest of the
access road, guiding runoff southward to the Crabtree Creek floodplain. The northern depression
contains a single perennial stream. The southern depression contains one perennial stream and one
ephemeral channel. Crabtree Creek is a tributary within the Neuse River basin. Site elevations range
from a high of approximately 190 feet (north of the gravel entrance road to the transfer facility) to a
low of approximately 180 feet (south of the gravel entrance road).
According to the county soil survey, the site contains three soil mapping units: Appling sandy loam
(2 to 6 percent slopes), Appling sandy loam (6 to 10 percent slopes), and Faceville sandy loam (2 to
6 percent slopes). The National Resources Conservation Service (MRCS) considers all of these map
units to be non-hydric. Appling soils are mapped across the northern portion of the site. Appling
sandy loam is awell-drained, moderately permeable soil typically found on side slopes and

EcoScience Corporation
Mr. John Bove
February 9, 2007
Page 2 of 5
rounded divides in Piedmont uplands. Faceville loamy sand is mapped in the southern portion of the
site. The Faceville series is a very deep, well-drained soil with moderate permeability. This series is
typically found on terraces along large streams.
Biological Features
The vegetation surrounding the site primarily consists of mixed pine/hardwood forest. On upper
slopes and ridges, the canopy contains northern red oak (Quercus rubs), white oak (Q. alba),
mockernut hickory (Carya tomentosa), pignut hickory (C. glabra), sweetgum (Liquidambar
styraciflua), loblolly pine (Pinus taeda), and tulip tree (Liriodendron tulipifera). Understory species
include flowering dogwood (Corpus florida), eastern red cedar (Juniperus virginiana), sourwood
(Oxydendron arboreum), black cherry (Prunus serotina), red maple (Ater rubrum), and red mulberry
(Mores rubs). Scattered vines and herbs include muscadine (Vitis rotundifolia), green-brier (Smilax
rotundifolia), and Japanese honeysuckle (Lonicera japonica). The lower portions adjacent to the
stream support species characteristic of a moist environment such as willow oak (Q. phellos),
American beech (Fagus grandifolia), ironwood (Carpinus caroliniana), hop hornbeam (Ostrya
virginiana), and American sycamore (Platanus occidentalis).
The site is expected to have moderate wildlife value as a result of the variation of on-site habitats and
adjacent development. The day of the site visit was cold and cloudy. No mammals were observed;
however, evidence of on-site mammals includedtracks ofwhite-tailed deer (Odocoileus virginianus)
and raccoon (Procyon lotor). On-site bird observations include species characteristic of forest edges
and interiors such as northern mockingbird (Mimes polyglottos), blue jay (Cyanocitta cristata),
Carolina chickadee (Pares carolinensis), Carolina wren (Thryothorus ludovicianus), and American
robin (Turdus migratorius). No terrestrial reptiles or amphibians were identified.
Jurisdictional Area Determination
The U.S. Geological Survey (USGS) topographic quadrangle (Raleigh East, NC) indicates no
streams at the site. The county soil survey indicates an intermittent stream in the approximate area of
• interest. Field surveys concluded that a perennial stream flows southward (from the northeast, east
• of the access road) from a sediment basin through the culvert in the road bend (Figure 2). A buildup
• of sediment (a delta) deposited by this stream has eliminated jurisdictional stream features for a
reach of approximately 90 feet upstream of the culvert. The stream reach reforms just above the
~ culvert. This stream has a confluence, approximately 60 feet below the culvert with an ephemeral
channel. The ephemeral channel flows southward (from the north, west of the access road) to this
confluence. The perennial stream is likely subject to Section 404/401 jurisdiction by the U.S. Army
• Corps of Engineers (USAGE) and N.C. Division of Water Quality (NCDWQ). This stream is also

EcoScience Corporation
Mr. John Bove
February 9, 2007
Page 3 of 5
likely subject to the Neuse River Riparian Buffer Rule. The ephemeral stream is not expected to be
subject to Section 404/401 jurisdiction or the Neuse River riparian buffer rule.
A vegetated seep wetland occurs south of the access road and west of the transfer station's gravel
parking lot. This vegetated wetland is oriented in a northeast to southwest direction and extends
approximately 75 feet to the confluence with the perennial stream. The wetland has an average
width of 40 feet, and is approximately 0.06 acre in size. This wetland is apparently a result of
seepage from underneath the gravel parking lot. Soils within this wetland were gray and contained
mottles and oxidized rhizospheres. Vegetation within this wetland has already been characterized
above. Additional wetlands and stream length occur downstream of those depicted by our
delineation, and additional stream length occurs upstream of our delineation. Additional field work
will be required to determine the type and extent of jurisdictional areas beyond the subject area of
interest.
The Neuse River riparian buffer rules are also an issue for this site. According to the rules, a 50-foot
vegetated buffer must be protected on each side of streams indicated on either USGS topographic
mapping or county soils mapping. The county soil survey map indicated a perennial stream west of
the transfer facility; therefore, the Neuse River riparian buffer rule is in effect fora 100-foot buffer
centered on the streams as approximately shown on the soils map.
Permit Issues
Two areas in the site are considered to be subject to jurisdictional consideration by the USAGE and
NCDWQ: 1) the perennial stream located to the north and south of the culvert and 2) the vegetated
seep wetland south of the access road and west of the gravel parking lot. Impacts to either or both of
these areas will require authorization from USAGE and NCDWQ, most likely through the
Nationwide Permit (NWP) process. NWP 14 applies to expansion or improvement of linear
transportation crossings. In this setting, this NWP can be used for a prof ect that does not exceed 0.5
acre of impact to waters of the United States (streams or wetlands). The USAGE must be notified in
the form of a NWP application (Pre-Construction Notification [PCN]) if the project will impact 1)
greater than 0.1 acre of waters of the United States, 2) greater than 150 linear feet of stream
considered to be important by the USAGE, or 3) any wetlands. If these thresholds are not exceeded,
no USAGE notification is necessary. Any USAGE notification for a NWP will need to include
mitigation for proposed impacts to streams and wetlands.
A NWP cannot authorize impacts to waters of the United States without an associated Water Quality
Certification from the NCDWQ. Use of a Water Quality Certification requires application to and
prior written concurrence from the NCDWQ.

EcoScience Corporation
Mr. John Bove
February 9, 2007
Page 4 of 5
The NCDWQ will likely determine that the perennial stream is subject to the Neuse River riparian
buffer rule. Road crossings that impact 401inear feet of riparian buffer or less are exempt from the
buffer rule. Road crossings that impact more than 40 linear feet and less than 1501inear feet or less
than 0.33 acre of riparian buffer may proceed providing there are no practicable alternatives to the
requested use. In this case, the applicant will need to obtain a determination of no practicable
alternatives through issuance of an Authorization Certificate from the NCDWQ.
Protected Species
The current U.S. Fish and Wildlife Service (USFWS) listing of federally protected species with
ranges which extend into Wake County includes four species: bald eagle (Haliaeetus
leucocephalus), red-cockaded woodpecker (Picoides borealis), dwarf wedgemussel (Alasmidonta
heterodon), and Michaux's sumac (Rhus michauxii). No suitable habitat occurs within the site for
bald eagle, red-cockaded woodpecker, and dwarf wedgemussel. Suitable habitat occurs for
Michaux's sumac on road shoulders within the area of interest. Surveys for this species typically
need to be conducted during the blooming season -May to October. This field effort occurred
outside of the survey window for this species; however, no specimens of any species of sumac were
observed during the site visit.
Summary
• The site is located in a developing industrial area east of Raleigh. Resources on the site are
not considered unique or significant.
• The site contains a perennial stream and jurisdictional wetlands subject to permit review by
the USAGE and NCDWQ. Impacts to this stream can likely be authorized under USACE
NWP 14 (for linear transportation crossings). Use of this permit may not require notification
to the USAGE but will require notification to the NCDWQ.
• County soils mapping indicates that an intermittent stream occurs in the site, raising the
likelihood that the NCDWQ will consider the Neuse River riparian buffer rule to be in effect
along this stream. Impacts to more than 40 linear feet of stream buffer will require
notification to the NCDWQ.
• Suitable habitat exists within the site for only one federally protected species - Michaux's
sumac. This field investigation occurred outside of the survey window for this species;
however, no sumac species were observed during the field investigation, so the proposed
project is not expected to result in an adverse impact to this species. Natural resource
agencies will have the right to request a survey for this species be conducted during the
designated survey window (May to October).

EcoScience Corporation
Mr. John Bove
February 9, 2007
Page 5 of 5
I hope the information provided in this letter is useful for your planning purposes. If you have any
questions about this information, please feel free to give me a call. ESC is available for further
coordination and consultations, if requested. Thank you for selecting ESC for this important project.
Yours truly,
ECOSCIENCE CORPORATION
~~'~-
Matthew D. Thomas
Project Scientist II

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SITE LOCATION MDT APS FIGURE
Date:
Wilders Grove Waste Transfer Facility FEB 2005
Access Road Expansion Scale. AS SHOWN 1
EcoScience Wake County, North Carolina ESC Project No.:
Corporation
Raleigh, Nath Carolina 07-333

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Replacement of Culvert over Access Road 5=o~e
AS SHOWN
Wake County, North Carolina Esc P,o;e~~ No:
07-333

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MAR-6-2007 14:38 FROM:DWQ-WETLANDS 9197336893
Q~O~ W A r~AQG
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March 6, 2007
City of Raleigh
Attu; Mr. k'rederiek Battle
222 W. Hargett Street
P,O, Box 590
Raleigh, NG 27602
Subject Property: Wilders Grove Transfer Station Improvements
Alan w. Kfimck, 1'.E. 1Jircctor
Division of Water Quality
DWQ >EXP# 07-0330
Wake County
On-Site DetcrminaNon for Applicability to the Neuse Riparian ,A,rea )Protection Rules (15A NCAC 2B
A233}E~CP'RESS lR)gV)lEW )°)Et,OGRAM.
On February Z8, 2007, at the request of Matt Thomas of EeoScience Corporation, an on-site determination was
conducted to review one stream feature located on the subject property for applicability to the Neuse Buffer Rules
(15A NCAC 2$ .0233). The feature is labeled as "A" on the attached map, initialed by Lia Myott on March 6,
x007. The Division of Water Quality (DWQ) has determined that the following:
~ Feature "A" is subject to the Neuse Buffer Rule from the flag labeled "A2". ~'he feature is an intermittent
naturalized channel from flag "A1" to flag "A2", and transitions to a natural intermittent stream at flag
"A2".
This on-site determination shall expire five (S) years from the date of this ]after.
Landowners or affected parties that dispute a determination shade by the 17WQ that a surface water exists and that
• it is subject to the buffer rule may request a determination by the Director. A request for a determination by the
Director shall be referred to the Director in writing c/o Cyndi Karoly, DWQ 401 OversightlExpress Review
1?crlnitting Unit, 2321 Crabtree Blvd., Raleigh, NC 27604-2260. You must act within 60 days of the date that you
• receive this letter. Applicants are hereby notified that the 60-day statutory appeal time does hat start until the
affected party (including downstream anal adjacent landowners) is notified of this decision. This deternination is
finial and binding unless you ask for a hearing within 60 days_
•
•
•
•
This letter only addresses the applicability to the buffer rules of the stream features listed above and does not
approve any activity within. the buffers or address features that were not observed during the site visit. Nor does
this letter approve any activity within Waters of the Utlited States or Waters of the State. Tf you have any
questions, please contact Lia Myott at 919.733,9502•
' SiAcere3y, ~~
1 1 ~G :-c..~cl
Alan W. I~.lunek, P.E.
AWI;Icbk/lem
Attacbrnents: NRCS Soil Survey Map, USGS Topo Quad Map
ec; Matt Thomas, EcoScienee Corporation, 1101 Haynes St., Ste l O1, Raleigh, NC 27504
~'i1G Copy
Central Files
N,U~" ~~ Carolina
401 Oversight / Frprcaq Review Permitting Unit ~u~~J
165U Mail Service Center. Relei,~h, North Carolina 27699-1650
2321 Crabtroc 13oulevard~ Suite 250, Raicigh North Carolina 27604
Phone' 919-733-176G ! Fh.Y 919-733-6893 / lntcrnct: httn://h2o_e~„sllle; rx;.uslncwctlandc
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T0: 98283518 P:2~2
Michael T. Easley Governor
William G. Ross Jr., Secretary
North Carolina Dcpartmern of Environment and Natural Resources

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•

LEVEL SPREADER SYSTEM OPERATION AND MAINTENANCE AGREEMENT (1/2007)
A level spreader system includes: a forebay, diverter box, level spreader, riparian buffer/vegetated filter strip,
and flow bypass channel.
Name of Project: CITY OF RALEIGH SOLID WASTE TRANSFER FACILITY
Address: 820 Corporation Parkway, Raleigh, NC
Maintenance activities shall be performed as follows:
MAINTENANCE ACTIVITY FREQUENCY
Post-construction monitoring-inspect for vegetation, Check after every heavy rainfall for first 6 months
settlin ,erosion, or concentrated flow. followin construction.
Inspect Diverter Box and clean and/or make repairs. Once a month and after heavy rainfalls/storms.
Look for:
• Clogged inlet or outlet pipes.
• Trash/debris in the box.
Inspect Forebay + Level Spreader. Clean and/or Once a month and after heavy rainfalls/storms.
make repairs. Look for:
• Sediment in forebay and along level spreader
lip;
• Trash and/or leaf buildup.
• Scour, undercutting of level spreader.
• Settlement of level spreader structure (no
longer level; you see silt downhill below level
spreader).
• Fallen trees on level spreader.
• #57 stone washin downhill.
Inspect the Riparian Buffer and the Bypass Swale and Once a month and after heavy rainfalls/storms.
make repairs as needed'. Look for:
• Damaged turf reinforcement or riprap rolling
downhill.
• Erosion within the buffer or swale.
• Concentrated flows downhill of level
s reader-look for ullies or sediment flows.
Mow grass to a 6" height. As needed during growing season.
Remove any weeds/shrubs growing on level spreader Once a year.
or in swale.
NOTE: LEVEL SPREADER IS NOT LOCATED WITHIN OR ADJACENT TO PROTECTED RIPARIAN
BUFFER
' NOTE: Contact NC Division of Water Quality, 401/Wetlands Unit at 919-733-1786 BEFORE any work
in Protected Riparian Buffers.
Page 1 of 2

LEVEL SPREADER
No. LOCATION ON SITE (DESCRIBE) HOW WILL IT BE ACCESSED?
1 West of main entrance road at culvert. Visual inspection from edge of road.
Equipment access from main access
roadwa .
2
3
4
5
6
I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance
procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the
system or responsible party.
Print name: Fred Battle
Title: Director, Department of Solid Waste Services, City of Raleigh
Address: 400 W. Peace Street Raleigh, NC 27602
Phone: [phone]
Signature:
Date:
Note: The ('egally responsible party should not be a homeowners association unless more than 50% of the
lots have been sold and a resident of the subdivision has been named the president.
I, T fJl~i~t,~ ~u~-a~ - `~,ec , a Notary Public for the State of /~,~~ ~ Vo ~i ~L ,
County of ~ ~'~.Q_ , do hereby certify that F/zc~ ~~-~--
personally appeared before me this ~ b~ day of `}'1'~ct.~ , ~, and acknowledge the due
execution of the forgoing wet [wetland] detention basin maintenance requirements. Witness my hand and
official seal,
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My commission expires o2 ~ .~-~ - ,100 `~
Page 2 of 2

DIVISION OF WATER QUALITY -LEVEL SPREADER WORKSHEET (112007)
I. PROJECT INFORMATION (please complete the following information):
Project Name : Wilders Grove Solid Waste Transfer Facility
Contact Person: Fred Battle Phone Number: ~ 9191 831-6890
Level Spreader ID: One
Level Spreader Length 47 ft. (perpendicular to flow)
Drainage Area 0.63 ac. (on-site and off-site drainage to the level spreader)
Impervious Area 0.52 ac. (on-site and off-site drainage to the level spreader)
Forebay Area 177 cu ft. (0.2% of the contributing impervious surface area)
Maximum Filter Strip/Buffer Slope 2.5 % (6% for forested/leaf littler cover, 8% for grass/thick cover)

Max. Discharge from 1"/Hr Storm 0.54 cfs
Max. Discharge to Level Spreader 3.60 cfs (Discharge rate from extended detention wetland or pond)
Filter Strip/ Zone 1 Buffer Vegetation (GrasslThick ground cover or Forested)
Filter Strip/ Zone 1 Buffer Width 30 ft,
Fitter Strip/ Zone 2 Buffer Vegetation
Filter Strip/ Zone 2 Buffer Width 20 ft,
Bypass Method Used
N/A
Please include a worksheet for this.
II. REQUIRED ITEMS CHECKLIST
• Initial in the space provided to indicate the following design requirements have been met and supporting documentation is
attached. If a requirement has not been met, please explain why. At a minimum, a complete stormwater management plan
submittal includes a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet
structure details, a detailed drainage plan and a fully executed operation and maintenance agreement. An incomplete
submittal package will result in a request for additional information and will substantially delay final review and approval of
the project.
Applicants Initials
MDB Project Site was visited prior to designing level spreader system.
02/03/2007 Date of the Site visit. Please attach time-dated digital photos of existing buffer conditions.
MDB Level spreader length is at least: 13 ft, per cfs for thick ground cover /grass; OR 65 ft per cfs for 50-
foot canopied forest with leaf litter; 50 ft per cfs for 100-foot forested buffer; 40 ft. per cfs for 150-foot
forested buffer; OR a weighted average of the two vegetation types within the buffer~lter strap).
MDB All ground cover types and their widths have been labeled on the construction plans.
MDB All contours have been depicted on the construction plans.
• MDB No structures are located in protected buffers (must meet no practical altematives criteria).
MDB No draws are located in the buffer or filter strip in the vicinity of the proposed level spreader.
MDB Construction details for the level spreader have been provided.
• MDB The operation and maintenance agreement signed and notarized by the responsible party is provided.
N/A No practical alternatives explanation + Variance request. (Level Spreaders in Series only).
•
• Bypass method used:
N/A Bypass conveyance method is specified and construction details and calculations are provided.
N/A Alternative design option is specified and plan details and calculations are provided.
N/A Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the
bypass discharge,
N/A Construction details for the bypass and outlets are provided.

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NC SOLID WASTE Fax [phone] Dec 19 2001 1635 P. 01
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North Carolina
Depazt~nent of Administration
Michael F. Easley, Governor Gwynn T. Swinson, Secretary
Decezrxber 17, 2001
Mr. Paul Crissman
N.C. Dept. of Env. 8c Nat. Resources
Division of Waste Management
1646 MSC
Raleigh, NC 27699-1646
Dear Mr. Crissrz~an:
~^~~9y02922~3,~'4~s
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12e: SCI:i pile # 02-E-4300-0221; Environmental ~ssessrnent/Finding of No Significant Impact City
of Raleigh -Proposed Construction of a Solid Waste Transfer pacility
The above referenced cnviroruxaental impact information has been reviewed through the State
Clearinghouse under the provisions of the North Carolina Enviror~ental Policy .A.ct.
No comments were made by any state/local agencies in the course of this review. Therefore, no furtlier
environmental review action on your part is required for the compliance with the Act.
Best regards.
cc: Region J
Sin/crerely,
C~~~ ~~
Ms. Chrys Haggett
Environmental Policy Act Coordinator
1 l b West Joloes Street Raleigh, North Carolina 27643-8443 Telephone [phone]
An Equal ODDartuniry / /t#Brtnaiivc Action Emplbyor