20201440 Ver 2_ePCN Application_20220509

Pre -Construction Notification (PCN) Form
For Nationwide Permits and Regional General Permits
(along with corresponding Water Quality Certifications)
April 13, 2022 Ver 4.3
Initial Review
Has this project met the requirements for acceptance in to the review process?*
OO Yes
O No
Is this project a public transportation project?*
OYes 0No
Change only if needed.
Pre -Filing Meeting Date Request was submitted on:
10/9/2020
BIMS # Assigned* Version#*
20201440 2
Is a payment required for this project?*
® No payment required
0 Fee received
O Fee needed - send electronic notification
Select Project Reviewer*
Sue Homewood:eads\slhomewood
Information for Initial Review
Reviewing Office*
Winston-Salem Regional Office - (336) 776-
9800
la. Name of project:
MITCHELL WTP CONVENTIONAL TREATMENT AND RESIDUALS PHASE I IMPROVEMENTS AND PUMP STATION
la. Who is the Primary Contact?*
Peoria McDougald
lb. Primary Contact Email:*
[e-mail]
Date Submitted
5/9/2022
Nearest Body of Water
North Buffalo Creek
Basin
Cape Fear
Water Classification
WS-V; NSW
Site Coordinates
Latitude:
36.081172
A. Processing Information
Longitude:
-79.803556
lc. Primary Contact Phone:*
[phone]
County (or Counties) where the project is located:
Guilford
Is this a NCDMS Project
0Yes ONo
Is this project a public transportation project?*
0 Yes ® No

la. Type(s) of approval sought from the Corps:
EI Section 404 Permit (wetlands, streams and waters, Clean Water Act)
❑ Section 10 Permit (navigable waters, tidal waters, Rivers and Harbors Act)
Has this PCN previously been submitted?*
O Yes
O No
Please provide the date of the previous submission.*
11 /20/2020
1b. What type(s) of permit(s) do you wish to seek authorization?
Nationwide Permit (NWP)
O Regional General Permit (RGP)
O Standard (IP)
lc. Has the NWP or GP number been verified by the Corps?
O Yes 0 No
Nationwide Permit (NWP) Number:
NWP Numbers (for multiple NWPS):
Id. Type(s) of approval sought from the DWR:
I 1 401 Water Quality Certification - Regular
O Non-404 Jurisdictional General Permit
O Individual 401 Water Quality Certification
58 - Utility Line Activities for Water and Other Substances (frequently used)
le. Is this notification solely for the record because written approval is not required?
For the record only for DWR 401 Certification:
For the record only for Corps Permit:
If. Is this an after -the -fact permit application?*
OYes C No
0 401 Water Quality Certification - Express
0 Riparian Buffer Authorization
lg. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts?
0 Yes
lg. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts?
Yes No
1h. Is the project located in any of NC's twenty coastal counties?
0 Yes • No
1j. Is the project located in a designated trout watershed?
Yes • No
B. Applicant Information
OYes 0O No
OO Yes 0 No
ld. Who is applying for the permit?
11 Owner ✓ Applicant (other than owner)
le. Is there an Agent/Consultant for this project?*
OYes 0No
2. Owner Information
2a. Name(s) on recorded deed:
City of Greensboro
2b. Deed book and page no.:
000000-00000
2c. Contact Person:

2d. Address
Street Address
2602 S. Elm -Eugene St.
Address Line 2
City
Greensboro
Postal / Zip Code
27406
2e. Telephone Number:
[phone]
2g. Email Address:*
[e-mail]
3. Applicant Information (if different from owner)
3a. Name:
Peoria McDougald
3b. Business Name:
CriTek Engineering Group
3c. Address
Street Address
4900 Koger Blvd
Address Line 2
Suite 180
City
Greensboro
Postal / Zip Code
27407
3d. Telephone Number:
[phone]
3f. Email Address:*
[e-mail]
4. Agent/Consultant (if applicable)
4a. Name:
Peoria McDougald
4b. Business Name:
CriTek Engineering Group
4c. Address
Street Address
4900 Koger Blvd
Address Line 2
Suite 180
City
Greensboro
Postal / Zip Code
27407
4d. Telephone Number:
[phone]
4f. Email Address: *
[e-mail]
C. Project Information and Prior Project History
State / Province / Region
NC
Country
US
2f. Fax Number:
State / Province / Region
NC
Country
US
3e. Fax Number:
State / Province / Region
NC
Country
US
4e. Fax Number:
1. Project Information
lb. Subdivision name:
(if appropriate)
lc. Nearest municipality / town:
Greensboro, NC
2. Project Identification

2a. Property Identification Number:
6617
2b. Property size:
11.75
2c. Project Address
Street Address
501 Open Benjamin Parkway
Address Line 2
City
Greensboro
Postal / Zip Code
27408
3. Surface Waters
3a. Name of the nearest body of water to proposed project: *
North Buffalo Creek
3b. Water Resources Classification of nearest receiving water: *
WS-V; NSW
3c. What river basin(s) is your project located in?*
Cape Fear
3d. Please provide the 12-digit HUC in which the project is located.
030300020105
4. Project Description and History
State / Province / Region
NC
Country
US
4a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this application: *
The property is currently used as a park and recreational purposed for Lake Daniel Greenway. The property includes linear drainage, North Buffalo Creek, which has trees and shrubs
surrounding it. Duke Energy has an easement on the property which includes overhead transmission lines.
4b. Have Corps permits or DWR certifications been obtained for this project (including all prior phases) in the past?*
O* Yes O No 0 Unknown
If yes, please give the DWR Certification number or the Corps Action ID (exp. SAW-0000-00000).
DWR # 20201440
SAW-2020-02064
4f. List the total estimated acreage of all existing wetlands on the property:
0
4g. List the total estimated linear feet of all existing streams on the property:
1600
4h. Explain the purpose of the proposed project:*
Mitchell Water Treatment Plant in Greensboro, NC will be making improvements to the plant which will include a new 12-inch ductile iron force main from the plant to an existing sanitary
sewer line on E. Lake Drive. The force main is used to drain the new wet well and pump station.
4i. Describe the overall project in detail, including indirect impacts and the type of equipment to be used: *
The installation of the 12-inch force main will include crossing North Buffalo Creek at a 105 degree angle. Clearing will be limited to the construction zone along the creek to install the pipe.
The pipe will be installed by open cut trench methods with excavators. A temporary creek crossing with be performed to install the pipe across North Buffalo Creek. The pipe will be
installed at a minimum of 3 feet below the creek. North Buffalo Creek will be temporary impacted due to pipe installation. When working within the creek, the Contractor will be required to
divert the flow around the construction within the creek with the pump and temporary dams, see detail C on sheet CD-3. When dewatering the pit, the Contractor will be required to pump
the water through a silt filter bag before discharging into the creek. The creek and site will be restored to its existing conditions. A bore pit will be excavated in the buffer to perform a
directional drill under Benjamin Parkway and the existing Duke Energy's power transmission lines. The contactor will be required to install erosion control measures to prevent additional
impact the the creek. The buffers will be seeded and straw to establish ground cover.
5. Jurisdictional Determinations
5a. Have the wetlands or streams been delineated on the property or proposed impact areas? *
Yes ONo
Comments:
5b. If the Corps made a jurisdictional determination, what type of determination was made? *
C) Preliminary O Approved G Not Verified 0 Unknown 0 N/A
Corps AID Number:
5c. If 5a is yes, who delineated the jurisdictional areas?
Name (if known):
Agency/Consultant Company:
Other:
Kelly Boone and Mark Darwin
CDM Smith
0 Unknown

6. Future Project Plans
6a. Is this a phased project?*
Yes No
Are any other NWP(s), regional general permit(s), or individual permits(s) used, or intended to be used, to authorize any part of the proposed project or related activity?
D. Proposed Impacts Inventory
1. Impacts Summary
la. Where are the impacts associated with your project? (check all that apply):
O Wetlands O Streams -tributaries
O Open Waters O Pond Construction
3. Stream Impacts
O Buffers
3a. Reason for impact (?)
3b.Impact type*
3c. Type of impact*
3d. S. name*
3e. Stream Type*
(?)
3f. Type of
Jurisdiction*
3g. S. width
3h. Impact
length*
S1
Temporary Creek Crossing
Temporary
Excavation
North Buffalo Creek
Perennial
Both
60
Average (feet)
15
(linear feet)
3i. Total jurisdictional ditch impact in square feet:
0
31. Total permanent stream impacts:
0
3i. Total stream and ditch impacts:
15
3j. Comments:
6. Buffer Impacts (for DWR)
6a. Project is in which protect basin(s)?
Check all that apply.
O Neuse
O Catawba
O Goose Creek
O Other
3i. Total temporary stream impacts:
15
O Tar -Pamlico
O Randleman
E Jordan Lake
6b. Impact Type
6c. Per or Temp
6d. Stream name
6e. Buffer mitigation required?
6f. Zone 1 impact
6g. Zone 2 impact
Excavation and Clearing
P
North Buffalo Creek
No
2,300
2,554
6h. Total buffer impacts:
Total Temporary impacts:
Total Permanent impacts:
Total combined buffer impacts:
6i. Comments:
Zone 1
0.00
Zone 1
2,300.00
Zone 1
2,300.00
E. Impact Justification and Mitigation
Zone 2
0.00
Zone 2
2,554.00
Zone 2
2,554.00
1. Avoidance and Minimization

la. Specifically describe measures taken to avoid or minimize the proposed impacts in designing the project:
The design ensured the stream and buffer crossings crossed at an angle between 75 degrees to 105 degrees and the pipe only crosses the stream
once. Jacking and boring was not ideal to cross the creek and/or buffers due to the findings in the geotechnical borings. It was discovered that
weathered rock is present approximately one to three feet below the creek. Due to the findings, it was decided it is best to install the pipe by open cut
trench method following the City's Standard creek crossing detail. The design originally had the bore pit for the Benjamin Parkway crossing in Duke
Energy's easement. However, Duke Energy will not permit a bore pit under transmission lines or near their transmission towers. The bore bit had to be
relocated closer to North Buffalo Creek and within the buffer limits. The limits of disturbance has been minimized to the area which the contractor needs
to install the bore.
1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques:
The contractor will be limited to clearing only within the limits of disturbance. The Contractor will be required to adhere to the temporary creek crossing
detail on sheet CD-3. Which will require the contractor to install a temporary dam in the creek and pump the water around the construction area. Water
pumped directly from the pit must me pumped through the silt filter bag before reentering into the creek. The creek banks must be restored to existing
grade and protected with stone according to detail D on sheet CD-4. The contractor will be required to install two rows of silt fence near the top of the
bank to prevent sheet flow and sediment into the creek.
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 No
2b. If this project DOES NOT require Compensatory Mitigation, explain why:
The project will disturb less than an acre of wetlands and less than 150 linear feet of stream. For the ripiran buffers, the project will disturb greater than 40 linear feet but less than 150
linear feet of riparian buffer with a maintenance corridor equal to or less than 10 feet in width therefore no mitigation is required.
F. Stormwater Management and Diffuse Flow Plan (required by DWR)
1. Diffuse Flow Plan
la. Does the project include or is it adjacent to protected riparian buffers identified within one of the NC Riparian Buffer Protection Rules?
J Yes No
What type of SCM are you providing?
O Level Spreader
O Vegetated Conveyance (lower SHWT)
O Wetland Swale (higher SHWT)
O Other SCM that removes minimum 30% nitrogen
0 Proposed project will not create concentrated stormwater flow through the buffer
2. Stormwater Management Plan
2a. Is this a NCDOT project subject to compliance with NCDOT's Individual NPDES permit NCS000250?*
0 Yes No
2b. Does this project meet the requirements for low density projects as defined in 15A NCAC 02H .1003(2)?
• Yes No
Comments:
G. Supplementary Information
1. Environmental Documentation
la. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land?*
O Yes O No
lb. 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 (North Carolina)
Environmental Policy Act (NEPA/SEPA)?*
O Yes O No
Comments: *
The property is currently owned by the City of Greensboro, a local municipality.
2. Violations (DWR Requirement)
2a. Is the site in violation of DWR Water Quality Certification Rules (15A NCAC 2H .0500), Isolated Wetland Rules (15A NCAC 2H .1300), or DWR Surface Water or Wetland Standards or
Riparian Buffer Rules (15A NCAC 2B .0200)?*
O Yes O No
3. Cumulative Impacts (DWR Requirement)
3a. Will this project result in additional development, which could impact nearby downstream water quality?*
0 Yes O No

3b. If you answered "no," provide a short narrative description.
This land is currently used as Lake Daniel Greenway. It is not predicted that addition development will occur that will impact the stream quality.
4. Sewage Disposal (DWR Requirement)
4a. Is sewage disposal required by DWR for this project?*
Yes C; No • N/A
5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or habitat?*
O Yes No
5b. Have you checked with the USFWS conceming Endangered Species Act impacts?*
!,j Yes O No
5c. If yes, indicate the USFWS Field Office you have contacted.
Raleigh
5d. Is another Federal agency involved?*
0 Yes
5e. Is this a DOT project located within Division's 1-8?
OYes 0No
O No O Unknown
5f. Will you cut any trees in order to conduct the work in waters of the U.S.?
OYes 0No
5g. Does this project involve bridge maintenance or removal?
0Yes ONo
5h. Does this project involve the construction/installation of a wind turbine(s)?`
0Yes ®No
5i. Does this project involve (1) blasting, and/or (2) other percussive activities that will be conducted by machines, such as jackhammers, mechanized pile drivers, etc.?
0Yes ONo
5j. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat?
iPacs
ECOSEnvironmental Conservation Online System
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as an Essential Fish Habitat?*
O Yes @ No
6b. What data sources did you use to determine whether your site would impact an Essential Fish Habitat?*
NOAA Essential Fish Habitat (EFH) Mapper
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 status?*
O Yes ® No
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?*
https://nc. maps.arcgis.com/apps/webappviewer/index.html?id=79ea671 ebdcc45639f0860257d5f5ed7
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA-designated 100-year floodplain?*
! Yes O No
8b. If yes, explain how project meets FEMA requirements:
The project will not require any additional building/construction above ground. The ground will be put back to the existing grade once the pipe is
installed. A Floodplain Development Permit will be submitted to the City of Greensboro for the project.
8c. What source(s) did you use to make the floodplain determination?*
FEMA flood insurance risk maps
Miscellaneous

Please use the space below to attach all required documentation or any additional information you feel is helpful for application review. Documents should be combined into one file when
possible, with a Cover Letter, Table of Contents, and a Cover Sheet for each Section preferred.
Click the upload button or dreg and drop files here to attach document
20201440 Ver 1_Approval Letter_20210208.pdf 5.88MB
BUFFER IMPACTS Revised 2022-0504.pdf 1.19MB
401 Resubmittal Cover Letter.pdf 208.58KB
GSO.2019.01_Mitchell FM Design Revised 2022-0505.pdf 8.62MB
Supporting Documents.pdf 6.06MB
File must be PDF or KMZ
Comments
Signature
'. By checking the box and signing below, I certify that:
• The project proponent hereby certifies that all information contained herein is true, accurate, and complete to the best of my knowledge and belief'; and
• The project proponent hereby requests that the certifying authority review and take action on this CWA 401 certification request within the applicable reasonable period of time.
• I have given true, accurate, and complete information on this form;
I agree that submission of this PCN form is a "transaction" subject to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act");
I agree to conduct this transaction by electronic means pursuant to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act");
I understand that an electronic signature has the same legal effect and can be enforced in the same way as a written signature; AND
I intend to electronically sign and submit the PCN form.
Full Name:
Peoria Lydell McDougald
Signature
Date
5/9/2022

CRIM
ENGINEERING GROUP
May 9, 2022
NC Department of Environmental Quality
Attention: Sue Homewood
Division of Water Resources
450 W. Hanes Mill Rd, Suite 300
Winston Salem NC 27105
4900 Koger Blvd., Suite 180
Greenshora, NC 27407
Telephone: [phone]
CrTekGroup. cum
Subject: Mitchell Water Treatment Plant Residual Improvements I— Design Modifications
DWR # 20201440
Dear Ms. Homewood:
On February 8, 2021, The City of Greensboro received a 401 Permit for stream and buffer impacts for the project
referenced above. Since then, CriTek Engineering Group (CriTek) made modifications to the design that impact the
buffer zones differently. The following items were changed to the design:
• The tie-in location has been relocated because MH-7 from the old design will not be installed prior to
construction. The sewer will now be routed to an existing manhole and stubbed for a future connection.
• Duke Energy will not permit jacking and boring within their easement, so the bore pit was shifted south, closer to
North Buffalo Creek.
The design minimizes the limits of disturbance as much as we believe is possible to effectively install the force main and
we have considered all other means of limiting the buffer impacts. The new disturbed area for each buffer zone is as
follows:
• Buffer Zone 1: 2,300 square feet (increased by 302 square feet)
• Buffer Zone 2: 2,554 square feet (increased by 771 square feet)
As requested, CriTek is resubmitting the 401 permit to capture these modifications and additional impacts. Included with
this cover letter, please find the revised design sheets and buffer impacts layout for your approval. Should you have any
questions, please give me a call at 336.709.5525 or email at [e-mail].
Sincerely,
CriTek Engineering Group
Peoria McDougald, PE
CC: Michael Borchers, City of Greensboro'"
\�t�cpts _.
File: _00:2DN 0I •Mich_ sign Revised 2022-0505 &' Buffer Impacts Reu.�i'�a22-0504
�- +� CriTekgroup.com

DocuSign Envelope ID: DEA75051-28E7-4250-87FA-0484E9C17F4F
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. DANIEL SMITH
Director
NORTH CAROLINA
Environmental Quality
February 8, 2021
DWR # 20201440
Guilford County
City of Greensboro
Attn: Mr. Michael Borchers
2602 S. Elm -Eugene St
Greensboro NC 27406
Delivered via email to: [e-mail]
Subject: APPROVAL of JORDAN LAKE RIPARIAN BUFFER IMPACTS
Mitchell Water Treatment Plant Residual Improvements I
Dear PERSON:
You have our approval for the impacts listed below for the purpose described in your
application dated and received by the Division of Water Resources (Division) November 11,
2020 and payment received November 30, 2020, with subsequent information on February 4,
2021. These impacts are covered by the Jordan Lake Riparian Buffer Rules. Please note that
you should get any other federal, state or local permits before proceeding with your project,
including those required by (but not limited to) Clean Water Act Section 404 and/or 401
Authorizations, Sediment and Erosion Control, Non -Discharge, and Water Supply Watershed
regulations.
The following impacts are hereby approved, provided that all of the Conditions listed below and
all of the conditions of the Jordan Lake Riparian Buffer Rules are met. No other impacts are
approved, including incidental impacts. [15A NCAC 02B .0267(11)1
Type of Impact
Amount Approved
Amount Approved
(units)
(units)
Permanent
Temporary
Buffers —Zone 1
1998 (square feet)
0 (square feet)
Buffers — Zone 2
1783 (square feet)
0 (square feet)
This approval is for the purpose and design described in your application. The plans and
specifications for this project are incorporated by reference as part of this Authorization
Certificate. If you change your project, you must notify the Division and you may be required to
submit a new application package. If the property is sold, the new owner must be given a copy
�� North Carolina Department of Environmental Quality J Division of Water Resources
„yl�DW11 +/ Winston-Salem Regional Office 1 450 West Hanes Mill Road, Suite 300 1 Winston-Salem, North Carolina 27105
oap—e & eu�oma��i n��N � 336,776.9800

DocuSign Envelope ID: DEA75051-28E7-4250-87FA-0484E9C17F4F City of Greensboro
DWR# 20201440
Buffer Authorization Certificate
Page 2 of 3
of this Authorization Certificate and is responsible for complying with all conditions. [15A NCAC
02B [Jordan] .0267(11) / [Randleman] .0611(b)(2)]
If you are unable to comply with any of the conditions below, you must notify the Winston-
Salem Regional Office within 24 hours (or the next business day if a weekend or holiday) from
the time the permittee becomes aware of the circumstances.
The permittee shall report to the Winston-Salem Regional Office any noncompliance with the
conditions of this Authorization Certificate and/or any violation of state regulated riparian
buffer rules [15A NCAC 02B .0267. Information shall be provided orally within 24 hours (or the
next business day if a weekend or holiday) from the time the applicant became aware of the
circumstances.
This approval and its conditions are final and binding unless contested. [G.S. 143-215.5]
This Authorization Certificate can be contested as provided in Chapter 150B of the North Carolina
General Statutes by filing a Petition for a Contested Case Hearing (Petition) with the North
Carolina Office of Administrative Hearings (OAH) within sixty (60) calendar days. Requirements
for filing a Petition are set forth in Chapter 150B of the North Carolina General Statutes and Title
26 of the North Carolina Administrative Code. Additional information regarding requirements for
filing a Petition and Petition forms may be accessed at nttp://www.ncoah.com/ or by calling the
OAH Clerk's Office at [phone].
One (1) copy of the Petition must also be served to the North Carolina Department of
Environmental Quality:
William F. Lane, General Counsel
Department of Environmental Quality
1601 Mail Service Center
Raleigh, NC 27699-1601
This Authorization Certificate neither grants nor affirms any property right, license, or privilege
in any waters, or any right of use in any waters. This Authorization Certificate does not authorize
any person to interfere with the riparian rights, littoral rights, or water use rights of any other
person, nor does it create any prescriptive right or any right of priority regarding any usage of
water. This Authorization Certificate shall not be interposed as a defense in any action respecting
the determination of riparian or littoral rights or other rights to water use. No consumptive user
is deemed by virtue of this Authorization Certificate to possess any prescriptive or other right of
priority with respect to any other consumptive user regardless of the quantity of the withdrawal
or the date on which the withdrawal was initiated or expanded.
This Authorization shall expire upon expiration of the 401 Water Quality Certification
#20201440 issued February 8, 2021.

DocuSign Envelope ID: DEA75051-28E7-4250-87FA-0484E9C17F4F City of Greensboro
DWR# 20201440
Buffer Authorization Certificate
Page 3 of 3
This letter completes the review of the Division under the Jordan Lake Riparian Buffer Rules as
described in 15A NCAC 02B .0267. Please contact Sue Homewood at 336-776-9693 or
Sue. [e-mail] if you have any questions or concerns.
Sincerely,
EDocuSiT<
gned by:
Lun, l . cJ,,Ar
145B49E225C94EA...
Lon T. Snider
Regional Supervisor
Water Quality Regional Operations Section
Division of Water Resources, NCDEQ— WSRO
cc: Peoria McDougald, CriTek Engineering Group (via email)
David Bailey, USACE Raleigh Regulatory Field Office (via email)
Olivia Munzer, NCWRC (via email)
DWR 401 & Buffer Permitting Unit file

DocuSign Envelope ID: DEA75051-28E7-4250-87FA-0484E9C17F4F
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. DANIEL SMITH
Director
NORTH CAROLINA
Environmental Quality
February 8, 2021
DWR # 20201440
Guilford County
City of Greensboro
Attn: Mr. Michael Borchers
2602 S. Elm -Eugene St
Greensboro NC 27406
Delivered via email to: [e-mail]
Subject: APPROVAL OF 401 WATER QUALITY CERTIFICATION WITH ADDITIONAL CONDITIONS
Mitchell Water Treatment Plant Residual Improvements I
Dear Mr. Borchers:
You have our approval for the impacts listed below for the purpose described in your application dated
and received by the Division of Water Resources (Division) November 11, 2020 and payment received
November 30, 2020, with subsequent information on February 4, 2021. These impacts are covered by
the attached Water Quality General Certification Number 4133 and the conditions listed below. This
certification is associated with the use of Nationwide Permit Number 12 once it is issued to you by the
U.S. Army Corps of Engineers. Please note that you should get any other federal, state or local permits
before proceeding with your project, including those required by (but not limited to) Sediment and
Erosion Control, Non -Discharge, and Water Supply Watershed regulations.
The Division has determined that the proposed project will comply with water quality requirements
provided that you adhere to the conditions listed in the enclosed certification and to the additional
conditions itemized below.
The following proposed impacts are hereby approved. No other impacts are approved, including
incidental impacts. [15A NCAC 02H .0506(b)]
Type of Impact
Amount Approved
Permanent
Amount Approved
Temporary
Stream
0 (linear feet)
15 (linear feet)
This approval is for the purpose and design described in your application. The plans and specifications
for this project are incorporated by reference as part of this Certification. If you change your project,
you must notify the Division and you may be required to submit a new application package with the
appropriate fee. If the property is sold, the new owner must be given a copy of this Certification and is
responsible for complying with all conditions. [15A NCAC 02H .0507(d)(2)].
O� �_� North Carolina Department of Environmental Quality J Division of Water Resources
Winston-Salem Regional office 1 450 West Hanes Mill Road, Suite 300 1 Winston-Salem, North Carolina 27105
DaV­e & Enehnamrtnu11­1n /`� 336,776.9800

DocuSign Envelope ID: DEA75051-28E7-4250-87FA-0484E9C17F4F
City of Greensboro
DWR# 20201440
401 Certification
Page 2 of 3
If you are unable to comply with any of the conditions of the attached Water Quality General
Certification or with the additional conditions itemized below, you must notify the Winston Salem
Regional Office within 24 hours (or the next business day if a weekend or holiday) from the time the
permittee becomes aware of the circumstances.
The permittee shall report to the Winston Salem Regional Office any noncompliance with, and/or any
violation of, stream or wetland standards [15A NCAC 02B .0200] including but not limited to sediment
impacts to streams or wetlands. Information shall be provided orally within 24 hours (or the next
business day if a weekend or holiday) from the time the permittee became aware of the non-compliance
circumstances.
Additional Conditions:
1. The Permittee shall conduct a preconstruction meeting with the construction contractor prior to
disturbance of the impact area. The Division shall be notified of the meeting two weeks prior to
its scheduled date. [15A NCAC 02H .0507 (c) and 15A NCAC 02H .0502 (e) and 15A NCAC 02H
.0506 (b)(3)]
Justification: A project that affects waters shall not be permitted unless the existing uses, and
the water quality to protect such uses, are protected. In determining that the proposed
activity will comply with state water quality standards (including designated uses, numeric
criteria, narrative criteria and the state's antidegradation policy), the Division must evaluate
if the activity has avoided and minimized impacts to waters, would cause or contribute to a
violation of standards or would result in secondary or cumulative impacts.
This approval and its conditions are final and binding unless contested. [G.S. 143-215.5]
This Certification can be contested as provided in Chapter 150B of the North Carolina General Statutes by
filing a Petition for a Contested Case Hearing (Petition) with the North Carolina Office of Administrative
Hearings (OAH) within sixty (60) calendar days. Requirements for filing a Petition are set forth in Chapter
150B of the North Carolina General Statutes and Title 26 of the North Carolina Administrative Code.
Additional information regarding requirements for filing a Petition and Petition forms may be accessed at
http://www.ncoah.com/ or by calling the OAH Clerk's Office at [phone].
One (1) copy of the Petition must also be served to the North Carolina Department of Environmental
Quality:
William F. Lane, General Counsel
Department of Environmental Quality
1601 Mail Service Center
Raleigh, NC 27699-1601

DocuSign Envelope ID: DEA75051-28E7-4250-87FA-0484E9C17F4F
City of Greensboro
DWR# 20201440
401 Certification
Page 3 of 3
This letter completes the review of the Division under section 401 of the Clean Water Act and 15A NCAC
02H .0500. Please contact Sue Homewood at 336-776-9693 or Sue. [e-mail] if you
have any questions or concerns.
Sincerely,
�-5'B49E225C94EA
uSiTgned by:
E
l . c,J,Jtr
...
LonT. Snider
Regional Supervisor
Water Quality Regional Operations Section
Division of Water Resources, NCDEQ— WSRO
Enclosures: GC 4133
cc: Peoria McDougald, CriTek Engineering Group (via email)
David Bailey, USACE Raleigh Regulatory Field Office (via email)
Olivia Munzer, NCWRC (via email)
DWR 401 & Buffer Permitting Unit file

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
WATER QUALITY GENERAL CERTIFICATION NO.4133
GENERAL CERTIFICATION FOR PROJECTS ELIGIBLE FOR US ARMY CORPS OF ENGINEERS
• NATIONWIDE PERMIT 12 (UTILITY LINE ACTIVITIES)
Water Quality Certification Number 4133 is issued in conformity with the requirements of
Section 401, Public Laws 92-500 and 95-217 of the United States and subject to the North
Carolina Regulations in 15A NCAC 02H .0500 and 15A NCAC 02B .0200 for the discharge of fill
material to surface waters and wetland areas as described in 33 CFR 330 Appendix A (B) (12) of
the US Army Corps of Engineers regulations.
The State of North Carolina certifies that the specified category of activity will not violate
applicable portions of Sections 301, 302, 303, 306 and 307 of the Public Laws 92-500 and 95-
217 if conducted in accordance with the conditions hereinafter set forth.
Effective date: December 1, 2017
Signed this day: December 1, 2017
By
for Linda Culpepper
Interim Director

GC4133
Activities meeting any one (1) of the following thresholds or circumstances require written
approval for a 401 Water Quality Certification from the Division of Water Resources (DWR):
a) If any of the Conditions of this Certification (listed below) cannot be met; or
b) Total permanent impacts to wetlands or open waters equal to or greater than one -tenth
(1/10) acre within the entire utility project; or
c) Any permanent impacts to streams; or
d) Total temporary impacts to streams greater than 500 feet within the entire utility
project; or
e) Any stream relocation or stream restoration; or
f) Any high -density utility line and associated facilities project, as defined in 15A NCAC 02H
.1003(2)(a) and by the density thresholds specified in 15A NCAC 02H .1017, which:
L Disturbs one acre or more of land (including a project that disturbs less than one
acre of land that is part of a larger common plan of development or sale); and
ii. Has permanent wetland, stream or open water impacts; and
iii. Is proposing new built -upon area; and
iv. Does not have a stormwater management plan reviewed and approved under a
state stormwater program' or a state -approved local government stormwater
program2.
Projects that have vested rights, exemptions, or grandfathering from state or locally -
implemented stormwater programs and projects that satisfy state or locally -
implemented stormwater programs through use of community in -lieu programs require
written approval; or
g) Any permanent impacts to waters, or to wetlands adjacent to waters, designated as:
ORW (including SAV), HQW (including PNA), SA, WS-I, WS-II, Trout, or North Carolina or
National Wild and Scenic River; or
h) Any permanent impacts to coastal wetlands [15A NCAC 07H .0205], or Unique Wetlands
(UWL); or
i) Any impact associated with a Notice of Violation or an enforcement action for
violation(s) of NC Wetland Rules (15A NCAC 02H .0500), NC Isolated Wetland Rules (15A
NCAC 02H .1300), NC Surface Water or Wetland Standards (15A NCAC 02B .0200), or
State Regulated Riparian Buffer Rules (15A NCAC 02B .0200); or
j) Any impacts to subject water bodies and/or state regulated riparian buffers along
subject water bodies in the Neuse, Tar -Pamlico, or Catawba River Basins or in the
Randleman Lake, Jordan Lake or Goose Creek Watersheds (or any other basin or
watershed with State Regulated Riparian Area Protection Rules [Buffer Rules] in effect
at the time of application) unless:
L The activities are listed as "EXEMPT" from these rules; or
ii. A Buffer Authorization Certificate is issued by the NC Division of Coastal
Management (DCM); or
' e.g. Coastal Counties, HQW, ORW, or state -implemented Phase II NPDES
2 e.g. Delegated Phase II NPDES, Water Supply Watershed, Nutrient -Sensitive Waters, or Universal Stormwater
Management Program
Page 2 of 12

GC4133
iii. A Buffer Authorization Certificate or a Minor Variance is issued by a delegated or
designated local government implementing a state riparian buffer program
pursuant to 143-215.23.
Activities included in this General Certification that do not meet one of the thresholds listed
above do not require written approval.
I. ACTIVITY SPECIFIC CONDITIONS:
1. All sewer lines shall be designed, constructed and maintained in accordance with Title 15A
NCAC Chapter 02T.
2. Any utility construction corridor that is parallel to a stream or open water shall not be closer
than 10 feet to the top of bank or ordinary high-water mark. Exceptions to this condition
require application to and written approval from DWR. [15A NCAC 02H .0506 (b)(4) and
(c)(4)]
3. Where there are temporary or permanent impacts from stream crossings, utility lines shall
cross the stream channel at a near -perpendicular direction (i.e., between 75 degrees and
105 degrees to the stream bank). Exceptions to this condition require application to and
written approval from DWR. [15A NCAC 02H .0506 (b)(2) and (c)(2)]
4. Construction corridors in wetlands and across stream channels shall be minimized to the
maximum extent practicable and shall not exceed 50 feet wide for gas utility lines and 40
feet wide for all other utility lines. Exceptions to this condition require application to and
written approval from DWR. [15A NCAC 02H .0506 (b)(2) and (c)(2)]
For construction corridors in wetlands and across stream channels, stumps shall be grubbed
only as needed to install the utility and remaining stumps shall be cut off at grade level. The
general stripping of topsoil within wetlands along the construction corridor is not
permitted.
5. Permanent maintained access corridors in wetlands and across stream channels shall be
restricted to the minimum width practicable and shall not exceed 30 feet wide for gas utility
lines and 20 feet wide for all other utility lines except at manhole locations. 15-foot by 15-
foot perpendicular vehicle turnarounds shall be allowed in access corridors but must be
spaced at least 500 feet apart. Exceptions to this condition require application to and
written approval from DWR. [15A NCAC 02H .0506 (b)(2) and (c)(2)]
6. For all utility lines constructed within wetlands, an anti -seep collar shall be placed at the
downstream (utility line gradient) wetland boundary and every 150 feet up the gradient
until the utility exits the wetland. Anti -seep collars may be constructed with class B
concrete, compacted clay, PVC pipe, or metal collars. Wetland crossings that are
directionally drilled, and perpendicular wetland crossings that are open cut and less than
150 feet long do not require anti -seep collars. The compacted clay shall have a specific
Page 3 of 12

GC4133
infiltration of 1 X 10-5 cm/sec or less. A section and plan view diagram is attached for the
anti -seep collars. [15A NCAC 02H .0506 (b)(4) and (c)(4)]
The following specifications shall apply to class B concrete:
a. Minimum cement content, sacks per cubic yard with rounded coarse aggregate 5.0
b. Minimum cement content, sacks per cubic yard with angular coarse aggregate 5.5
c. Maximum water -cement ratio gallons per sack 6.8
d. Slump range 2" to 4"
e. Minimum strength - 28-day psi 2,500
7. The applicant shall have a specific plan for restoring wetland contours. Any excess material
will be removed to a high ground disposal area. [15A NCAC 02H .0506 (b)(2) and (c)(2)]
The mixing of topsoil and subsoils within the wetlands along utility corridors shall be
minimized to the greatest extent practical. During excavation, the soils shall be placed on
fabric to minimize impacts whenever possible. Topsoil excavated from utility trenches will
be piled separately from subsoils and will be backfilled into the trench only after the
subsoils have been placed and compacted.
8. For the North Carolina Department of Transportation, compliance with the NCDOT's
individual NPDES permit NCS000250 shall serve to satisfy this condition. All other high -
density utility line and associated facilities projects that trigger threshold Item (f) above
shall comply with one of the following requirements: [15A NCAC 02H .0506(b)(5) and (c)(5)]
a. Provide a completed Stormwater Management Plan (SMP) for review and approval,
including all appropriate stormwater control measure (SCM) supplemental forms and
associated items, that complies with the high -density development requirements of 15A
NCAC 02H .1003. Stormwater management shall be provided throughout the entire
project area in accordance with 15A NCAC 02H .1003. For the purposes of 15A NCAC
02H .1003(2)(a), density thresholds shall be determined in accordance with 15A NCAC
02H .1017.
b. Provide documentation (including calculations, photos, etc.) that the project will not
cause degradation of downstream surface waters. Documentation shall include a
detailed analysis of the hydrological impacts from stormwater runoff when considering
the volume and velocity of stormwater runoff from the project built upon area and the
size and existing condition of the receiving stream(s).
Exceptions to this condition require application to and written approval from DWR.
II. GENERAL CONDITIONS:
1. When written authorization is required, the plans and specifications for the project are
incorporated into the authorization by reference and are an enforceable part of the
Certification. Any modifications to the project require notification to DWR and may require
an application submittal to DWR with the appropriate fee. [15A NCAC 02H .0501 and .0502]
Page 4 of 12

GC4133
2. No waste, spoil, solids, or fill of any kind shall occur in wetlands or waters beyond the
footprint of the impacts (including temporary impacts) as authorized in the written approval
from DWR; or beyond the thresholds established for use of this Certification without
written authorization. [15A NCAC 02H .0501 and .0502]
No removal of vegetation or other impacts of any kind shall occur to state regulated riparian
buffers beyond the footprint of impacts approved in a Buffer Authorization or Variance or
as listed as an exempt activity in the applicable riparian buffer rules. [15A NCAC 02B .0200]
3. In accordance with 15A NCAC 02H .0506(h) and Session Law 2017-10, compensatory
mitigation may be required for losses of greater than 300 linear feet of perennial streams
and/or greater than one (1) acre of wetlands. Impacts associated with the removal of a
dam shall not require mitigation when the removal complies with the requirements of Part
3 of Article 21 in Chapter 143 of the North Carolina General Statutes. Impacts to isolated
and other non-404 jurisdictional wetlands shall not be combined with 404 jurisdictional
wetlands for the purpose of determining when impact thresholds trigger a mitigation
requirement. For linear publicly owned and maintained transportation projects that are not
determined to be part of a larger common plan of development by the US Army Corps of
Engineers, compensatory mitigation may be required for losses of greater than 300 linear
feet per perennial stream.
Compensatory stream and/or wetland mitigation shall be proposed and completed in
compliance with G.S. 143-214.11. For applicants proposing to conduct mitigation within a
project site, a complete mitigation proposal developed in accordance with the most recent
guidance issued by the US Army Corps of Engineers Wilmington District shall be submitted
for review and approval with the application for impacts.
4. All activities shall be in compliance with any applicable State Regulated Riparian Buffer
Rules in Chapter 2 of Title 15A.
5. When applicable, all construction activities shall be performed and maintained in full
compliance with G.S. Chapter 113A Article 4 (Sediment and Pollution Control Act of 1973).
Regardless of applicability of the Sediment and Pollution Control Act, all projects shall
incorporate appropriate Best Management Practices for the control of sediment and
erosion so that no violations of state water quality standards, statutes, or rules occur. [15A
NCAC 02H .0506 (b)(3) and (c)(3) and 15A NCAC 02B .0200]
Design, installation, operation, and maintenance of all sediment and erosion control
measures shall be equal to or exceed the requirements specified in the most recent version
of the North Carolina Sediment and Erosion Control Manual, or for linear transportation
projects, the NCDOT Sediment and Erosion Control Manual.
All devices shall be maintained on all construction sites, borrow sites, and waste pile (spoil)
sites, including contractor -owned or leased borrow pits associated with the project.
Sufficient materials required for stabilization and/or repair of erosion control measures and
stormwater routing and treatment shall be on site at all times.
Page 5 of 12

GC4133
For borrow pit sites, the erosion and sediment control measures shall be designed,
installed, operated, and maintained in accordance with the most recent version of the
North Carolina Surface Mining Manual. Reclamation measures and implementation shall
comply with the reclamation in accordance with the requirements of the Sedimentation
Pollution Control Act and the Mining Act of 1971.
If the project occurs in waters or watersheds classified as Primary Nursery Areas (PNAs), SA,
WS-I, WS-II, High Quality Waters (HQW), or Outstanding Resource Waters (ORW), then the
sedimentation and erosion control designs shall comply with the requirements set forth in
15A NCAC 04B .0124, Design Standards in Sensitive Watersheds.
6. Sediment and erosion control measures shall not be placed in wetlands or waters except
within the footprint of temporary or permanent impacts authorized under this Certification.
Exceptions to this condition require application to and written approval from DWR. [15A
NCAC 02H .0501 and .0502]
7. Erosion control matting that incorporates plastic mesh and/or plastic twine shall not be
used along streambanks or within wetlands. Exceptions to this condition require
application to and written approval from DWR. [15A NCAC 026 .0201]
8. An NPDES Construction Stormwater Permit (NCG010000) is required for construction
projects that disturb one (1) or more acres of land. The NCGO10000 Permit allows
stormwater to be discharged during land disturbing construction activities as stipulated in
the conditions of the permit. If the project is covered by this permit, full compliance with
permit conditions including the erosion & sedimentation control plan, inspections and
maintenance, self -monitoring, record keeping and reporting requirements is required. [15A
NCAC 02H .0506(b)(5) and (c)(5)]
The North Carolina Department of Transportation (NCDOT) shall be required to be in full
compliance with the conditions related to construction activities within the most recent
version of their individual NPDES (NCS000250) stormwater permit. [15A NCAC 02H
.0506(b)(5) and (c)(5)]
9. All work in or adjacent to streams shall be conducted so that the flowing stream does not
come in contact with the disturbed area. Approved best management practices from the
most current version of the NC Sediment and Erosion Control Manual, or the NC DOT
Construction and Maintenance Activities Manual, such as sandbags, rock berms,
cofferdams, and other diversion structures shall be used to minimize excavation in flowing
water. Exceptions to this condition require application to and written approval from DWR.
[15A NCAC 02H .0506(b)(3) and (c)(3)]
10. If activities must occur during periods of high biological activity (e.g. sea turtle nesting, fish
spawning, or bird nesting), then biological monitoring may be required at the request of
other state or federal agencies and coordinated with these activities. [15A NCAC 02H .0506
(b)(2) and 15A NCAC 046 .0125]
Page 6 of 12

GC4133
All moratoriums on construction activities established by the NC Wildlife Resources
Commission (WRC), US Fish and Wildlife Service (USFWS), NC Division of Marine Fisheries
(DMF), or National Marine Fisheries Service (NMFS) shall be implemented. Exceptions to
this condition require written approval by the resource agency responsible for the given
moratorium. A copy of the approval from the resource agency shall be forwarded to DWR.
Work within a designated trout watershed of North Carolina (as identified by the
Wilmington District of the US Army Corps of Engineers), or identified state or federal
endangered or threatened species habitat, shall be coordinated with the appropriate WRC,
USFWS, NMFS, and/or DMF personnel.
11. Culverts shall be designed and installed in such a manner that the original stream profiles
are not altered and allow for aquatic life movement during low flows. The dimension,
pattern, and profile of the stream above and below a pipe or culvert shall not be modified
by widening the stream channel or by reducing the depth of the stream in connection with
the construction activity. The width, height, and gradient of a proposed culvert shall be
such as to pass the average historical low flow and spring flow without adversely altering
flow velocity. [15A NCAC 02H .0506(b)(2) and (c)(2)]
Placement of culverts and other structures in streams shall be below the elevation of the
streambed by one foot for all culverts with a diameter greater than 48 inches, and 20% of
the culvert diameter for culverts having a diameter less than or equal to 48 inches, to allow
low flow passage of water and aquatic life.
If multiple pipes or barrels are required, they shall be designed to mimic the existing stream
cross section as closely as possible including pipes or barrels at flood plain elevation and/or
sills where appropriate. Widening the stream channel shall be avoided.
When topographic constraints indicate culvert slopes of greater than 5%, culvert burial is
not required, provided that all alternative options for flattening the slope have been
investigated and aquatic life movement/connectivity has been provided when possible (e.g.
rock ladders, cross vanes, etc.). Notification, including supporting documentation to include
a location map of the culvert, culvert profile drawings, and slope calculations, shall be
provided to DWR 60 calendar days prior to the installation of the culvert.
When bedrock is present in culvert locations, culvert burial is not required provided that
there is sufficient documentation of the presence of bedrock. Notification, including
supporting documentation such as a location map of the culvert, geotechnical reports,
photographs, etc. shall be provided to DWR a minimum of 60 calendar days prior to the
installation of the culvert. If bedrock is discovered during construction, then DWR shall be
notified by phone or email within 24 hours of discovery.
If other site -specific topographic constraints preclude the ability to bury the culverts as
described above and/or it can be demonstrated that burying the culvert would result in
destabilization of the channel, then exceptions to this condition require application to and
written approval from DWR.
Page 7 of 12

GC4133
Installation of culverts in wetlands shall ensure continuity of water movement and be
designed to adequately accommodate high water or flood conditions. When roadways,
causeways, or other fill projects are constructed across FEMA-designated floodways or
wetlands, openings such as culverts or bridges shall be provided to maintain the natural
hydrology of the system as well as prevent constriction of the floodway that may result in
destabilization of streams or wetlands.
The establishment of native woody vegetation and other soft stream bank stabilization
techniques shall be used where practicable instead of rip -rap or other bank hardening
methods.
12. Bridge deck drains shall not discharge directly into the stream. Stormwater shall be
directed across the bridge and pre-treated through site -appropriate means to the maximum
extent practicable (e.g. grassed swales, pre -formed scour holes, vegetated buffers, etc.)
before entering the stream. Exceptions to this condition require application to and written
approval from DWR. [15A NCAC 02H .0506(b)(5)]
13. Application of fertilizer to establish planted/seeded vegetation within disturbed riparian
areas and/or wetlands shall be conducted at agronomic rates and shall comply with all
other Federal, State and Local regulations. Fertilizer application shall be accomplished in a
manner that minimizes the risk of contact between the fertilizer and surface waters. [15A
NCAC 02B .0200 and 15A NCAC 026 .0231]
14. If concrete is used during construction, then all necessary measures shall be taken to
prevent direct contact between uncured or curing concrete and waters of the state. Water
that inadvertently contacts uncured concrete shall not be discharged to waters of the state.
[15A NCAC 026 .0200]
15. All proposed and approved temporary fill and culverts shall be removed and the impacted
area shall be returned to natural conditions within 60 calendar days after the temporary
impact is no longer necessary. The impacted areas shall be restored to original grade,
including each stream's original cross sectional dimensions, planform pattern, and
longitudinal bed profile. For projects that receive written approval, no temporary impacts
are allowed beyond those included in the application and authorization. All temporarily
impacted sites shall be restored and stabilized with native vegetation. [15A NCAC 02H
.0506(b)(2) and (c)(2)]
16. All proposed and approved temporary pipes/culverts/rip-rap pads etc. in streams shall be
installed as outlined in the most recent edition of the North Carolina Sediment and Erosion
Control Planning and Design Manual or the North Carolina Surface Mining Manual or the
North Carolina Department of Transportation Best Management Practices for Construction
and Maintenance Activities so as not to restrict stream flow or cause dis-equilibrium during
use of this Certification. [15A NCAC 02H .0506(b)(2) and (c)(2)]
Page 8 of 12

GC4133
17. Any rip -rap required for proper culvert placement, stream stabilization, or restoration of
temporarily disturbed areas shall be restricted to the area directly impacted by the
approved construction activity. All rip -rap shall be placed such that the original stream
elevation and streambank contours are restored and maintained. Placement of rip -rap or
other approved materials shall not result in de -stabilization of the stream bed or banks
upstream or downstream of the area or in a manner that precludes aquatic life passage.
[15A NCAC 02H .0506(b)(2)]
18. Any rip -rap used for stream or shoreline stabilization shall be of a size and density to
prevent movement by wave, current action, or stream flows and shall consist of clean rock
or masonry material free of debris or toxic pollutants. Rip -rap shall not be installed in the
streambed except in specific areas required for velocity control and to ensure structural
integrity of bank stabilization measures. [15A NCAC 02H .0506(b)(2)]
19. Applications for rip -rap groins proposed in accordance with 15A NCAC 07H .1401 (NC
Division of Coastal Management General Permit for construction of Wooden and Rip -rap
Groins in Estuarine and Public Trust Waters) shall meet all the specific conditions for design
and construction specified in 15A NCAC 07H .1405.
20. All mechanized equipment operated near surface waters shall be inspected and maintained
regularly to prevent contamination of stream waters from fuels, lubricants, hydraulic fluids,
or other toxic materials. Construction shall be staged in order to minimize the exposure of
equipment to surface waters to the maximum extent practicable. Fueling, lubrication and
general equipment maintenance shall be performed in a manner to prevent, to the
maximum extent practicable, contamination of surface waters by fuels and oils. [15A NCAC
02H .0506(b)(3) and (c)(3) and 15A NCAC 02I3.0211 (12)]
21. Heavy equipment working in wetlands shall be placed on mats or other measures shall be
taken to minimize soil disturbance. [15A NCAC 02H .0506(b)(3) and (c)(3)]
22. In accordance with 143-215.85(b), the applicant shall report any petroleum spill of 25
gallons or more; any spill regardless of amount that causes a sheen on surface waters; any
petroleum spill regardless of amount occurring within 100 feet of surface waters; and any
petroleum spill less than 25 gallons that cannot be cleaned up within 24 hours.
23. If an environmental document is required under the State Environmental Policy Act (SEPA),
then this General Certification is not valid until a Finding of No Significant Impact (FONSI) or
Record of Decision (ROD) is issued by the State Clearinghouse. If an environmental
document is required under the National Environmental Policy Act (NEPA), then this
General Certification is not valid until a Categorical Exclusion, the Final Environmental
Assessment, or Final Environmental Impact Statement is published by the lead agency. [15A
NCAC 01C .0107(a)]
Page 9 of 12

GC4133
24. This General Certification does not relieve the applicant of the responsibility to obtain all
other required Federal, State, or Local approvals before proceeding with the project,
including those required by, but not limited to, Sediment and Erosion Control, Non -
Discharge, Water Supply Watershed, and Trout Buffer regulations.
25. The applicant and their authorized agents shall conduct all activities in a manner consistent
with State water quality standards (including any requirements resulting from compliance
with §303(d) of the Clean Water Act), and any other appropriate requirements of State and
Federal Law. If DWR determines that such standards or laws are not being met, including
failure to sustain a designated or achieved use, or that State or Federal law is being violated,
or that further conditions are necessary to assure compliance, then DWR may revoke or
modify a written authorization associated with this General Water Quality Certification.
[15A NCAC 02H .0507(d)]
26. The permittee shall require its contractors and/or agents to comply with the terms and
conditions of this permit in the construction and maintenance of this project, and shall
provide each of its contractors and/or agents associated with the construction or
maintenance of this project with a copy of this Certification. A copy of this Certification,
including all conditions shall be available at the project site during the construction and
maintenance of this project. [15A NCAC 02H .0507 (c) and 15A NCAC 02H .0506 (b)(2) and
(c)(2)]
27. When written authorization is required for use of this Certification, upon completion of all
permitted impacts included within the approval and any subsequent modifications, the
applicant shall be required to return a certificate of completion (available on the DWR
website: https://edocs.deg.nc.gov/Forms/Certificate-of-Completion). [15A NCAC 02H
.0502(f)]
28. Additional site -specific conditions, including monitoring and/or modeling requirements,
may be added to the written approval letter for projects proposed under this Water Quality
Certification in order to ensure compliance with all applicable water quality and effluent
standards. [15A NCAC 02H .0507(c)]
29. If the property or project is sold or transferred, the new permittee shall be given a copy of
this Certification (and written authorization if applicable) and is responsible for complying
with all conditions. [15A NCAC 02H .0501 and .0502]
III. GENERAL CERTIFICATION ADMINISTRATION:
1. In accordance with North Carolina General Statute 143-215.3D(e), written approval for a
401 Water Quality General Certification must include the appropriate fee. An applicant for
a CAMA permit under Article 7 of Chapter 113A of the General Statutes for which a Water
Quality Certification is required shall only make one payment to satisfy both agencies; the
fee shall be as established by the Secretary in accordance with 143-215.3D(e)(7).
Page 10 of 12

GC4133
2. This Certification neither grants nor affirms any property right, license, or privilege in any
waters, or any right of use in any waters. This Certification does not authorize any person
to interfere with the riparian rights, littoral rights, or water use rights of any other person
and this Certification does not create any prescriptive right or any right of priority regarding
any usage of water. This Certification shall not be interposed as a defense in any action
respecting the determination of riparian or littoral rights or other rights to water use. No
consumptive user is deemed by virtue of this Certification to possess any prescriptive or
other right of priority with respect to any other consumptive user regardless of the quantity
of the withdrawal or the date on which the withdrawal was initiated or expanded.
3. This Certification grants permission to the Director, an authorized representative of the
Director, or DWR staff, upon the presentation of proper credentials, to enter the property
during normal business hours. [15A NCAC 02H .0502(e)]
4. This General Certification shall expire on the same day as the expiration date of the
corresponding Nationwide Permit and/or Regional General Permit. The conditions in effect
on the date of issuance of Certification for a specific project shall remain in effect for the life
of the project, regardless of the expiration date of this Certification. This General
Certification is rescinded when the US Army Corps of Engineers reauthorizes any of the
corresponding Nationwide Permits and/or Regional General Permits or when deemed
appropriate by the Director of the Division of Water Resources.
5. Non-compliance with or violation of the conditions herein set forth by a specific project may
result in revocation of this General Certification for the project and may also result in
criminal and/or civil penalties.
6. The Director of the North Carolina Division of Water Resources may require submission of a
formal application for Individual Certification for any project in this category of activity if it
is deemed in the public's best interest or determined that the project is likely to have a
significant adverse effect upon water quality, including state or federally listed endangered
or threatened aquatic species, or degrade the waters so that existing uses of the water or
downstream waters are precluded.
History Note: Water Quality Certification (WQC) Number 4133 issued December 1, 2017
replaces WQC 4086 issued March 3, 2017; WQC 3884 issued March 19, 2012; WQC Number
3819 issued March 19, 2010; WQC Number 3699 issued November 1, 2007; WQC Number 3625
issued March 19, 2007; WQC Number 3374 issued March 18, 2002; WQC Number 3288 issued
June 1, 2000; WQC Number 3101 issued February 11, 1997; WQC Number 3022 issued
September 6, 1995, WQC Number 2664 issued January 21, 1992.
Page 11 of 12

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CITY OF GREENSBORO
M ITCH ELL WTP CONVENTIONAL TREATMENT AND
RESIDUALS PHASE I IMPROVEMENTS AND PUMP
STATION
Supporting Documents
PREPARED BY
CRI
ENGINEERING GROUP
CRITEK ENGINEERING GROUP, P.C.
4900 KOGER BLVD, SUITE 180
GREENSBORO, NC 27407
T: [phone] I WWW.CRITEKGROUP.COM I LICENSE : C-4061
May 2022

CONTENTS
USGSTopographic Map...............................................................................................................1
NRCSSoil Survey Map..................................................................................................................3
US Fish and Wildlife Consultation Documentation......................................................................5
SubsurfaceFindings.................................................................................................................. 12
UplandData.............................................................................................................................. 34

USGS Topographic Map

r
USGS Topographic Map - excerpt
Mitchell WTP Residual Improvements - Phase
O
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1 0.5 0 KILOMETERS 1 2
1001I 500 0 METERS 1000 2000
0.5 0 1
9 LES
1000 0 1000 2" 3000 4000 SIM 6000 7000 B000 9000 IDDDB
FEET
CONTOUR INTERVAL 10 FEET
NORTH AM€RICAN VERTICAL DATUM OF 19M
This map was pmdwed to confnnn with the
NatlonaL Geospatlal Program OS Tope Product Standard, 2011.
A metadata file associated with this product is draft version 0.6-18
x
I�70RTH
LNA
%Um Gu:LUGnow
1 Summerfield
1 2 3 2 Lake Brandt
3 Bromis Summit
4 i Guilkrd
5 Mctea Vwle
6 Nigh Point East
6 7 $ 7 Pleasant Garden
d Chrrex
?DJONING QUAD11mGLES
q)

NRCS Soil Survey Map

Custom Soil Resource Report
Soil Map
607M 6076M 607680 607700 607720 607740
36° 4' 56" N
r
g
r
36° 4' 49" N
607640 607660 607680 607700 607720 607740
Map Scale: 1:995 if printed on A portrait (8.5" x 11") sheet.
Meters
N 0 10 20 40 60
Feet
0 45 90 180 270
Map projection: Web Mercator Coner000rdinates: WGS84 Edge tics: UTM Zone 17N WGS84
9
607760
607760
0
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36° 4'56" N
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36° 4'49" N
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0

US Fish and Wildlife Consultation
Documentation

United States Department of the Interior
FISH AND WILDLIFE SERVICE
Raleigh Ecological Services Field Office
Post Office Box 33726
Raleigh, NC 27636-3726
Phone: [phone] Fax: [phone]
In Reply Refer To:
Consultation Code: 04EN2000-2021-SLI-0014
Event Code: 04EN2000-2021-E-00015
Project Name: Mitchell Force Main Improvements
October 02, 2020
Subject: List of threatened and endangered species that may occur in your proposed project
location, and/or may be affected by your proposed project
To Whom It May Concern:
The species list generated pursuant to the information you provided identifies threatened,
endangered, proposed and candidate species, as well as proposed and final designated critical
habitat, that may occur within the boundary of your proposed project and/or may be affected by
your proposed project. The species list fulfills the requirements of the U.S. Fish and Wildlife
Service (Service) under section 7(c) of the Endangered Species Act (Act) of 1973, as amended
(16 U.S.C. 1531 et seq.).
New information based on updated surveys, changes in the abundance and distribution of
species, changed habitat conditions, or other factors could change this list. Please feel free to
contact us if you need more current information or assistance regarding the potential impacts to
federally proposed, listed, and candidate species and federally designated and proposed critical
habitat. Please note that under 50 CFR 402.12(e) of the regulations implementing section 7 of the
Act, the accuracy of this species list should be verified after 90 days. This verification can be
completed formally or informally as desired. The Service recommends that verification be
completed by visiting the ECOS-IPaC website at regular intervals during project planning and
implementation for updates to species lists and information. An updated list may be requested
through the ECOS-IPaC system by completing the same process used to receive the enclosed list.
Section 7 of the Act requires that all federal agencies (or their designated non-federal
representative), in consultation with the Service, insure that any action federally authorized,
funded, or carried out by such agencies is not likely to jeopardize the continued existence of any
federally -listed endangered or threatened species. A biological assessment or evaluation may be
prepared to fulfill that requirement and in determining whether additional consultation with the
Service is necessary. In addition to the federally -protected species list, information on the
species' life histories and habitats and information on completing a biological assessment or

10/02/2020 Event Code: 04EN2000-2021-E-00015
evaluation and can be found on our web page at http://www.fws.gov/raleigh. Please check the
web site often for updated information or changes
If your project contains suitable habitat for any of the federally -listed species known to be
present within the county where your project occurs, the proposed action has the potential to
adversely affect those species. As such, we recommend that surveys be conducted to determine
the species' presence or absence within the project area. The use of North Carolina Natural
Heritage program data should not be substituted for actual field surveys.
If you determine that the proposed action may affect (i.e., likely to adversely affect or not likely
to adversely affect) a federally -protected species, you should notify this office with your
determination, the results of your surveys, survey methodologies, and an analysis of the effects
of the action on listed species, including consideration of direct, indirect, and cumulative effects,
before conducting any activities that might affect the species. If you determine that the proposed
action will have no effect (i.e., no beneficial or adverse, direct or indirect effect) on federally
listed species, then you are not required to contact our office for concurrence (unless an
Environmental Impact Statement is prepared). However, you should maintain a complete record
of the assessment, including steps leading to your determination of effect, the qualified personnel
conducting the assessment, habitat conditions, site photographs, and any other related articles.
Please be aware that bald and golden eagles are protected under the Bald and Golden Eagle
Protection Act (16 U.S.C. 668 et seq.), and projects affecting these species may require
development of an eagle conservation plan (http://www.fws.gov/windenergy/
eagle_guidance.html). Additionally, wind energy projects should follow the wind energy
guidelines (http://www.fws.gov/windenergy/) for minimizing impacts to migratory birds and
bats.
Guidance for minimizing impacts to migratory birds for projects including communications
towers (e.g., cellular, digital television, radio, and emergency broadcast) can be found at: http://
www.fws.gov/migratorybirds/CurrentBirdlssues/Hazards/towers/towers.htm; http://
www.towerkill.com; and http://www.fws.gov/migratory birds/CurrentBirdlssues/Hazards/towers/
comtow.html.
Not all Threatened and Endangered Species that occur in North Carolina are subject to section 7
consultation with the U.S Fish and Wildlife Service. Atlantic and shortnose sturgeon, sea
turtles,when in the water, and certain marine mammals are under purview of the National Marine
Fisheries Service. If your project occurs in marine, estuarine, or coastal river systems you should
also contact the National Marine Fisheries Service, http://www.nmfs.noaa.gov/
We appreciate your concern for threatened and endangered species. The Service encourages
Federal agencies to include conservation of threatened and endangered species into their project
planning to further the purposes of the Act. Please include the Consultation Tracking Number in
the header of this letter with any request for consultation or correspondence about your project
that you submit to our office. If you have any questions or comments, please contact John Ellis
of this office at [e-mail].

10/02/2020 Event Code: 04EN2000-2021-E-00015
Attachment(s):
• Official Species List

10/02/2020 Event Code: 04EN2000-2021-E-00015
Official Species List
This list is provided pursuant to Section 7 of the Endangered Species Act, and fulfills the
requirement for Federal agencies to "request of the Secretary of the Interior information whether
any species which is listed or proposed to be listed may be present in the area of a proposed
action".
This species list is provided by:
Raleigh Ecological Services Field Office
Post Office Box 33726
Raleigh, NC 27636-3726
[phone]

10/02/2020 Event Code: 04EN2000-2021-E-00015
Project Summary
Consultation Code: 04EN2000-2021-SLI-0014
Event Code: 04EN2000-2021-E-00015
Project Name: Mitchell Force Main Improvements
Project Type: WASTEWATER PIPELINE
Project Description: Mitchell Water Treatment Plant in Greensboro, NC will be making
improvements to the plant which will include a new 12-inch ductile iron
force main from the plant to the new 54-inch sanitary sewer line being
designed by others on E. Lake Drive. The installation of the 12-inch force
main will include crossing North Buffalo Creek at a 105 degree angle.
The pipe will be installed by jack and bore, approximately 123 feet under
Benjamin Parkway. the remainder of the piping will be installed by open
cut trench methods, including North Buffalo Creek. Construction is
projected to start around the 2nd quarter of 2021.
Project Location:
Approximate location of the project can be viewed in Google Maps: https:
www.google.com/maps/place/36.08136025690604N79.8038034472277W
C 7n81
Weslerwand
4 F 6
:�
Counties: Guilford, NC

10/02/2020 Event Code: 04EN2000-2021-E-00015 3
Endangered Species Act Species
There is a total of 2 threatened, endangered, or candidate species on this species list.
Species on this list should be considered in an effects analysis for your project and could include
species that exist in another geographic area. For example, certain fish may appear on the species
list because a project could affect downstream species.
IPaC does not display listed species or critical habitats under the sole jurisdiction of NOAA
Fisheriesi, as USFWS does not have the authority to speak on behalf of NOAA and the
Department of Commerce.
See the "Critical habitats" section below for those critical habitats that lie wholly or partially
within your project area under this office's jurisdiction. Please contact the designated FWS office
if you have questions.
NOAA Fisheries, also known as the National Marine Fisheries Service (NMFS), is an
office of the National Oceanic and Atmospheric Administration within the Department of
Commerce.
Flowering Plants
NAM L STATUS
Schweinitz's Sunflower Helianthus schweinitzii Endangered
No critical habitat has been designated for this species.
Species profile: https:Hecos.fws.gov/ecp/species/3849
Small Whorled Pogonia Isotria medeoloides Threatened
No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/1890
Critical habitats
THERE ARE NO CRITICAL HABITATS WITHIN YOUR PROJECTAREA UNDER THIS OFF ICE'S
JURISDICTION.

Subsurface Findings
12

SUMMIT
DESIGN AND ENGINEERING SERVICES
January 14, 2020
Dawayne Crite, PE
President
CriTek Engineering Group, PC
1 Centerview Drive No. 307
Greensboro, NC 27407
Reference: Report of Subsurface Exploration
Mitchell Backwash Force Main
Greensboro, North Carolina
Summit Project No: 18-0372.042
Dear Mr. Crite:
320 Executive Court, Hillsborough, NC 27278
Phone // 919.732.3883 Web // www.summitde.net
Summit Design and Engineering Services, PLLC (Summit) is pleased to submit this report of
our subsurface exploration for the referenced sewer force main to be constructed using jack -and -
bore methods in Greensboro, North Carolina. Our services were provided in accordance with
Summit's Proposal No. G19-0147 dated November 8, 2019. This report presents a review of the
project information provided to us, a discussion of the site and subsurface conditions revealed
during our field investigation, and our engineering recommendations regarding geotechnical
related aspects of the proposed construction. The Appendix of this report contains a boring
location diagram, the soil test boring logs and the results of our laboratory testing.
PROJECT INFORMATION
We understand that a sewer force main is to be installed beneath Benjamin Parkway in
Greensboro, NC. The force main is to be installed using jack -and -bore methods. Information
regarding the proposed elevations, or depths, of the force main was not provided to Summit.
FIELD EXPLORATION
Our field exploration to evaluate the subsurface materials included the performance of three
(3) soil test borings. The borings were advanced to depths ranging from 23.1 to 25.0 feet
below the existing ground surface. Borings were located at locations requested by CriTek
Engineering. Boring locations were staked in the field by CriTek personnel prior to utility
location and field work.
The borings were drilled using 3'/4 inch hollow stem augers with a CME-550 ATV on a rubber -
tired carrier. Standard Penetration Tests (SPT) were performed with a split spoon sampler to
determine N-values and obtain representative soil samples. Standard Penetration Testing was
performed in general accordance with ASTM D1586. The N-values are used to estimate the in -
situ relative density of cohesionless soils and the consistency of cohesive soils.

Report of Subsurface Exploration Summit Project No.:18-0372.042
Mitchell Backwash Force Main Improvements January 14, 2020
Greensboro, North Carolina
Representative samples were sealed and transported to our laboratory, where they were
examined and visually classified by a geotechnical engineer and select samples tested. Soil
classification was performed in general accordance with Unified Soil Classification System
(USCS) guidelines. Final boring logs, included in the Appendix of this report, represent an
interpretation of the driller's field logs, the geotechnical engineer's evaluation of the samples,
standard penetration tests values, and results of our laboratory testing. Naturally, transitional
changes in soil types are often gradual and cannot be defined at a particular depth.
FINDINGS
Area Geolon
The Carolina Slate Belt was formed 550 to 650 million years ago from volcanic and sedimentary
rocks. Common within the rock formations of this region are felsic and mafic volcanic rocks
and felsic igneous intrusions (intrusive rocks). Within the intrusive category, granites, quartz
monzonites, granodiorites, quartz diorites, and diorites to gabbros are seen. This type of rock
generally weathers to produce a relatively thin residual soil overburden consisting primarily of
silts with the occasional boulder.
❑ Blue Ridge Belt ❑ Raleigh Belt Charlotte Belt
❑ Coastal Plain ❑ Carolina Slate Belt ❑ Kings Mountain Belt
Inner Piedmont ❑ Triassic Basin Murphy Belt
Eastern Slate Belt ❑ Milton Belt
FIGURE 1: North Carolina Geological Survey, March 13, 1998
Beneath the soil overburden, abrupt soil transitions create partially weathered rock and hard
bedrock. With volcanic rocks, more severe weathering creates a thicker soil overburden that
typically does not contain boulders. In many locations, the transitional zone (locally referred to
as partially weathered rock or PWR) between soil and rock is not well defined. More specifically,
the site appears to be underlain by Metamorphosed Andesite.

Report of Subsurface Exploration Summit Project No.:18-0372.042
Mitchell Backwash Force Main Improvements January 14, 2020
Greensboro, North Carolina
Subsurface Conditions
Details of soil conditions encountered during our field exploration are shown on the individual
boring logs B-01 through B-03, included in the Appendix. Stratification boundaries shown on
the boring logs represent the approximate elevation of changes in soil type; however, the in -situ
transition may be gradual. This section of the report provides a general discussion of subsurface
conditions encountered at the site during our subsurface exploration.
From the exposed ground surface, all three borings encountered fill material to depths ranging
from about 6 feet to about 10 feet. The fill material consisted primarily of Clayey SAND (SC)
and SILT with Sand (ML). Based on the Standard Penetration Tests (N-Values) recorded in
the fill material in blows per foot (bpf), the fill appears to be placed with little compactive
effort.
Underlying the layer of fill material, alluvial soils were encountered in Borings B-01 and B-
02. The alluvial soils were encountered to depths ranging from about 11 feet to about 17 feet.
The alluvial soils consisted of Sandy CLAY (CL) and well -graded SAND (SW). Beneath the
fill material or the alluvial soils, the borings encountered residual soils which generally
consisted of medium dense to very dense saprolitic Silty SAND (SM).
Weathered rock was encountered in two of the borings at depths ranging from 11.5 feet to
12.5 feet. The elevations at which the weathered rock was encountered range from about EL.
728.5 to about EL. 731.5. Crystalline rock was encountered in two borings at depths ranging
from about 19.0 feet to about 23.0 feet. The elevation at which the crystalline rock was
encountered was EL. 721.0. The crystalline rock encountered at the site was granite.
After each boring was drilled, groundwater measurements were taken in the open boreholes.
Groundwater was not recorded in any of the three borings; however, wet or saturated soils
were encountered as shallow as 6 feet. Due to the fine-grained nature of the soils at this site,
`pockets' of perched water could be encountered during excavation activities.
Laboratory Test Results
Summit's laboratory testing included natural moisture content and Atterberg Limits tests
(plasticity index). Laboratory tests were conducted on split spoon samples of the materials
recovered from selected borings. The results of our laboratory classification tests are
presented in Table 1.

Report of Subsurface Exploration Summit Project No.:18-0372.042
Mitchell Backwash Force Main Improvements January 14, 2020
Greensboro, North Carolina
TABLE 1
SUMMARY OF LABORATORY RESULTS
Sample
P
Natural
% Passing
USCS
Boring No.
Depth (ft.)
LL
PI
Moisture
#200
Classification
(%)
(%)
B-01
8.5'-10.0'
43
19
22.6
45.6
SC
split spoon
B-01
14.0'-16.0'
38
20
20.4
69.9
CL
split spoon
B-02
6.0'-8.0'
43
16
45.2
87.6
ML
split spoon
B-03
4.0'-6.07
39
17
16.1
38.9
SC
split spoon
CONCLUSIONS AND RECOMMENDATIONS
As stated previously, Summit was not provided with information regarding the elevations at
which the near -horizontal force main will be installed beneath Benjamin Parkway. Weathered
rock was encountered at elevations ranging from about EL. 728.5 to about EL. 731.5, and the
crystalline bedrock, granite, was encountered at EL. 721.0.
The on -site soils and weathered rock can be excavated by routine earth -moving equipment.
For any confined excavations, such as utility trenches, trench safety must be evaluated on a
case -by -case basis. Based on the borings drilled at the site, groundwater, or seepage due to
perched water, may be encountered during the near -horizontal drilling for the force main.
The stability of all excavations must be analyzed by an Engineer. The analyses must include
the evaluation of global stability. Design parameters for use in the evaluations of
embankments are presented in Table 2.
TABLE 2
EMBANKMENT DESIGN PARAMETERS
Internal
Moist Unit
Friction
Material
Angle , +
Weight, y
(degrees)
(Pcf)
SM
30
125
SC
26
120
ML
28
120
*Effective condition. Values assume level backfdl and no accountforseismic (earthquake) force...

Report of Subsurface Exploration Summit Project No.:18-0372.042
Mitchell Backwash Force Main Improvements January 14, 2020
Greensboro, North Carolina
The contractor will be responsible for the determination of appropriate safety measures for
the excavation in accordance with OSHA guidelines.
QUALIFICATIONS
This report has been prepared in accordance with generally accepted geotechnical engineering
practices for specific application to this project. The conclusions and recommendations
contained in this report are based upon the applicable standards of our profession at the time the
report was prepared.
The analysis and recommendations submitted in this report are based in part upon the data
obtained from the subsurface investigation. The nature and extent of variations between the
borings may not become evident until construction. If variations then become evident, it will be
necessary to re-evaluate the recommendations of this report. In the event that any changes in
the nature, design or location of the force main are planned, the conclusions and
recommendations contained in this report shall not be considered valid unless the changes are
reviewed and the conclusions of this report modified or verified in writing.
CLOSURE
Summit appreciates the opportunity to provide our professional engineering services on this
project. Should you have any questions concerning this report or if we may be of further
assistance, please contact us at your convenience.
Sincerely,
SUMMIT DESIGN AND ENGINEERING SERVICES, PLLC
Firm's NC License No. P-0339
ttw CA R01
Harold D. Pruitt, P.E. �.`� �; oF�S S /0 % ,
Senior Geotechnical Engineer. IZI� 9�
N.C. Registration No. 009551: SEAL SEAL
009551
harold.pruittnaesummitde.net 01/14/20 '
��.fR p
,,p 1QR,,���
Don Dewey, P.E.
V.P. Geotechnical Engineering
N.C. Registration No. 020140
don. dewey&summitde. net

SYMBOLS AND TERMS USED ON BORING LOGS
UNIFIED SOIL CLASSIFICATION (ASTM D 2487-06)
MATERIAL
CRITERIA FOR ASSIGNING SOIL GROUP NAMES
SOIL GROUP SYMBOL, NAME, AND LEGEND
TYPES
GRAVELS
CLEAN GRAVELS
Cu > 4 AND 1 < Cc <3
GW
WELL -GRADED GRAVEL
J
< 5% FINES
Cu < 4 AND/OR 1 > Cc > 3
GP
POORLY -GRADED GRAVEL
p
> 50% OF COARSE
o
0 o Lu
FRACTION RETAINED
FINES CLASSIFY AS ML OR MH
GM
SILTY GRAVEL
LU LU >
ON No. 4 SIEVE
GRAVEL WITH FINES
o
FINES CLASSIFY AS CL OR CH
GC
CLAYEY GRAVEL
z z w
> 12% FINES
of C:)
Cu > 6 AND 1 <_ Cc <_ 3
SW
WELL -GRADED SAND
LU N
w
SANDS
CLEAN SANDS
Cu < 6 AND/OR 1 > Cc > 3
SP
POORLY -GRADED SAND
C' o
� o z
< 5% FINES
LO
O A
> 50% OF COARSE
FRACTION PASSING
FINES CLASSIFY AS ML OR MH
SM
SILTY SAND
U
ON No. 4 SIEVE
SANDS AND FINES
FINES CLASSIFY AS CL OR CH
SC
CLAYEY SAND
> 12% FINES
fn
PI>7 AND PLOTS ON/ABOVE "A" LINE
CL
LEAN CLAY
J
SILTS AND CLAYS
INORGANIC
PI<4 OR PLOTS BELOW "A" LINE
ML
SILT
O U) w
Lu o U)
LIQUID LIMIT < 50
ORGANIC
LL(OVEN DRIED) / LL(NOT DRIED)<0.75
OL
ORGANIC CLAY OR SILT
w
z Q LU
< a o
PI PLOTS ON OR ABOVE "A" LINE
CH
PLASTIC CLAY
9
SILTS AND CLAYS
INORGANIC
PI PLOTS BELOW "A" LINE
MH
ELASTIC SILT
In o
W Al z
z
LIQUID LIMIT >_ 50
ORGANIC
LL(OVEN DRIED) / LL(NOT DRIED)<0.75
OH
ORGANIC CLAY OR SILT
L�
INFERRED ORIGIN OF SOIL
RESIDUAL - SOIL DERIVED FROM IN -PLACE
WEATHERING OF ROCK
FILL - SOIL TRANSPORTED AND DEPOSITED
AT CURRENT LOCATION BY MAN
ALLUVIAL - SOIL TRANSPORTED AND DEPOSITED
AT CURRENT LOCATION BY WATER
Cu = D60 Cc = ( D 3o)2
Flo DIG xDGO
SOIL GRAIN SIZE
U.S. STANDARD SIEVE
12" 3" 3/4" No.4 No.10 No.40 No.200
BOULDERS COBBLES SAND COARSEAVE FINE COARSE MED M FINE SILT CLAY
300 76.2 19.1 4.76 2.00 0.420 0.074 0,005
SOIL GRAIN SIZE IN MILLIMETERS
OTHER MATERIAL
SYMBOLS
TOPSOIL
ASPHALT
p
CONCRETE
X
X
FILL (DUAL SYMBOL)
WEATHERED ROCK
CRYSTALINE ROCK
SEDIMENTARY ROCK
ABC
MOISTURE DESCRIPTION
DRY - REQUIRES ADDITIONAL WATER TO
ATTAIN OPTIMUM MOISTURE
MOIST - AT OR NEAR OPTIMUM MOISTURE
WET - REQUIRES DRYING TO ATTAIN
OPTIMUM MOISTURE
SATURATED - VERY WET; USUALLY FROM BELOW
THE GROUNDWATER TABLE.
SUMMIT 504 Meadowland Drive
DESIGN AND ENGINEERING SERVICES Hillsborough, North Carolina 27278
www.summit-engineer.com
COMPONENT MODIFIERS
SOIL COMPONENTS
DESCRIPTIVE TERM
COMPONENT
MAJOR
NOUN
> 50%
(SAND, SILT, CLAY)
SECONDARY
ADJECTIVE
20 - 50%
(SANDY, SILTY, CLAYEY)
OTHERS
WITH
10-20%
TRACE
0-10%
60
11 50
a
x
n 40
}
~ 30
N
a 20
a
10
7
00'4
00 10 16 20 30 40 50 60 70 80 90 IDO 110
L IOUID LI MIT(LL)
For classification of fXcorg-ned
/
/
an ine-grained frocT i
soils.
Equotion of "A -line
Horizontal at PI=4 to
then PI-0.731LL-20Equation
of°U"-line
Vertical at LL=16toPthen
PI=0.9(LL-
/
MH OR
OH
Gv�
- -
MLoR OL
LEGEND
SHEET 1 OF 2

SYMBOLS AND TERMS USED ON BORING LOGS
CONSISTANCY OF COHESIVE SOILS
THE FOLLOWING DESCRIPTIVE TE RMS FOR CONSISTENCY APPLY
TO COHESIVE SOILS SUCH AS FAT CLAYS AND LEAN CLAYS AS WELL
AS SEMI -COHESIVE SOILS SUCH AS ELASTIC SILTS_
UNCONFINED
COMPRES5IVE STRENGTH
(T5F)
CONSISTANCY
TYPICAL SPT
"N" VALUE
RANGE
LESS THAN 0.25
VERY SOFF
0-2
0.25TO0.50
SOFT
3-4
0.50TO1.00
MEDIUM STIFF
5-6
1.00TO2.00
STIFF
9-15
2A0TO4,00
VERYSTIFF
16-30
CREATER THAN 4.00
HARD
31— 50
—
VERY HARD
CIVER50
TERMS
RELATIVE DENSITY OF
CID H ESI ON LESS & SEMI -COHESION LESS SOIL
THE FOLLOWING DESCRIPTIVE TERMS FOR RELAnVE DENSITY
APPLY TO COHESION LESS SOILS SUCH AS GRAVELS, SILTY SANDS,
AND SANDS AS WELL AS SEMI-0OHESIONLESS SOILS SUCH AS
SANDY SILTS AND SEMI-0OHESIVE SOILSSUCH AS CLAYEY SANDS_
RELATIVE DENSITY
TYPICAL SPT "N"
VALUE RANGE
VERY LOOSE
0-4
LOOSE
5— 10
MEDIUM DENSE
11— 30
DENSE
31— SO
VERY DENSE
OVER 50
ALLUVIUM - SOILS THAT HAVE BEEN TRANSPORTED BY WATER.
RESIDUAL SOIL - SOIL FORMED IN PLACE BY THE WEATHERING OF ROCK.
SAPROLITE - RESIDUAL SOIL THAT RETAINS THE RELIC STRUCTURE OR FABRIC OF THE PARENT ROCK.
POCKET - INCLUSION OF MATERIAL OF DIFFERENT TEXTURE THAT IS SMALLER THAN THE DIAMETER OF THE SAMPLE.
SEAM - INCLUSION 1/8 INCH TO 3 INCHES THICK EXTENDING THROUGH SAMPLE.
LAYER - INCLUSION GREATER THAN 3 INCHES THICK EXTENDING THROUGH THE SAMPLE.
INTERLAYERED - SOIL SAMPLE COMPOSED OF ALTERNATING LAYERS OF DIFFERENT SOIL TYPES.
INTERMIXED - SOIL SAMPLE COMPOSED OF POCKETS OF DIFFERENT SOIL TYPES, LAYERED OR LAMINATED
STRUCTURE IS NOT EVIDENT.
NOTES
THE "N" VALUE IS THE NUMBER OF BLOWS FROM A 140-LB WEIGHT HAVING A FREE
FALL OF 30-IN REQUIRED TO PENETRATE THE FINAL12-IN OF AN 18-IN SAMPLE INTERVAL.
FIAD - DENOTES FILLED IN AFTER DRILLING
GRAVELS OR SANDS WITH 5 TO 12% FINES REQUIRE DUAL SYMBOLS.
SOILS WERE IDENTIFIED BASED ON IDENTIFICATION OF SOILS (VISUAL -MANUAL
PROCEDURE) - ASTM D2488-06 UNLESS OTHERWISE NOTED IN THE LABORATORY
SECTION OF THE GEOTECHNICAL REPORT.
REFUSAL AT THE SURFACE OF ROCK, BOULDER, OR OBSTRUCTION IS DEFINED AS A
RESISTANCE OF 100 BLOWS FOR 2 INCHES PENETRATION OR LESS.
CORING TERMS
REC - TOTAL LENGTH OF ROCK RECOVERED IN THE CORE BARREL DIVIDED
BY THE TOTAL LENGTH OF THE CORE RUN TIMES 100%.
RQD - TOTAL LENGTH OF SOUND ROCK SEGMENTS RECOVERED THAT ARE
LONGER THAN OR EQUAL TO 4 INCHES (EXCLUDING MECHANICAL BREAKS)
DIVIDED BY THE TOTAL LENGTH OF THE CORE RUN TIMES 100%.
SUMMIT 504 Meadowland Drive
DESIGN AND ENGINEERING SERVICES Hillsborough, North Carolina 27278
www.summit-engineer.com
SYMBOLS AND ABBREVIATIONS
ST - SHELBY TUBE SAMPLE
SS- SPLIT SPOON SAMPLE
S - GRAB SAMPLE
Z 24 HR WATER LEVEL
WATER LEVEL AFTER DRILLING
LEGEND
SHEET 2 OF 2

Z
O
U
Q �
N
U o
Gz U
K
O
r
O
z
m
N
aZ� N
W
C7 0
ZCsL
FZ
U) Q
X�
Wa
W
r
U)
LU
1
\� 1, / i i 1 / z _
<LLI
d
(t a z
N \ ��.. \I \�_ M yVl\ .\ i it Nz w
1'�i Teti ( -0_ \p�\s/Im } �°o�>
C a)O i�,� / V O Q` /vvv v v 1`� o z U
C LL r � 1 v. 4 • I , O offv x v. v� vl, mmoly ao
CO
xb•' \ t
--\#3<?;\`\ yam
�� ___ • __ _- ^': �K:a is \�\ / ` \ \ \ -
o �d�sd�w\aorz o��i.,p zo\.'voslvN sari+gas �o oo\oess[z,so s\yid �md,w�4H,..sww a\\�^a
C� s �a vs—s—a i ays7=�°e°wi [�s �ood3z 3s[nz srvaz7o��3as

0
c�
0
N
W
!Y
CO
Q
J
(n
D
0
F
(n
F
Z
(3
SUMMIT 320 Executive Court SOIL TEST BORING LOG
Hillsborough, North Carolina 27278
DESIGN AND ENGINEERING SERVICES www.summitcle.net
1 OF 1
PROJECT NUMBER: 18-0372.042
CITY: Greensboro
STATE: North Carolina
GEOLOGIST: Aaron Gross, PG
PROJECT NAME: Mitchell Backwash Force Main
GROUND WATER (ft)
BORING NUMBER: B-01
CLIENT: Critek Engineering Group
0 HR. N/A
ELEVATION: 746.5 ft
NORTHING N/A
EASTING N/A
24 HR. MAD
TOTAL DEPTH: 25.0 ft
DATE STARTED 12/30/20
COMPLETED 12/30/20
CAVE DEPTH N/A
DRILLER: Luis Gonzalez
DRILL RIG: CME-550 ATV
DRILL METHOD: 31/4' HSA
HAMMER TYPE: Automatic
ELEV.
DEPTH
BLOW COUNT
BLOWS PER FOOT
SAMP.
-
L
O
SOIL AND ROCK DESCRIPTION
0.5ft
O.5ft
0.5ft
(ft)
(ft)
0 20 40 60 80 100
NO
MOI
G
746.5
GROUND SURFACE
746.5 0.0
12
SS-1
M
X
X
FILL
Red and Brown medium dense Clayey SAND
6
5
7
743.0
3.5
9
M
X
X
(SC) with Gravel
SS-2
5
4
5
740.5
6.0
5
W
X .
X
SS-3
1
3
2
738.0
8.5
4
3 5
W
W
X
X
Xa
736.5 10.0
SS-4
SS-5
736.5
10.0
2
2
2
2
3
2
X
ALLUVIAL
734.5
12.0
4 6
W
X
X
Gray, stiff Sandy CLAY (CL)
WOH
2
4
SS-6
732.5
14.0
5 10
W
X
X
2
4
6
SS-7
730.5
16.0
7. 13
6, 12
W
W
X
730.5 16.0
728.5
18.0
5
6
7
SS-8
729.5 ALLUVIAL 17.0
4
5
7
SS-9
Gray, loose Well Graded SAND (SW)
RESIDUAL
Brown and gray, medium dense Silty SAND
(SM)
723.5
23.0
6. . 12
SS-10
W
4
5
7
721.5 25.0
Boring Terminated at 25.0 ft in Residual Silty
Sand

SUMMIT 320 Executive Court SOIL TEST BORING LOG
Hillsborough, North Carolina 27278
DESIGN AND ENGINEERING SERVICES www.summitcle.net
1 OF 1
PROJECT NUMBER: 18-0372.042
CITY: Greensboro
STATE: North Carolina
GEOLOGIST: Aaron Gross, PG
PROJECT NAME: Mitchell Backwash Force Main
GROUND WATER (ft)
BORING NUMBER: B-02
CLIENT: Critek Engineering Group
0 HR. N/A
ELEVATION: 744.0 ft
NORTHING N/A
EASTING N/A
24 HR. MAD
TOTAL DEPTH: 23.1 ft
DATE STARTED 12/31 /20
COMPLETED 12/31 /20
CAVE DEPTH N/A
DRILLER: Luis Gonzalez
DRILL RIG: CME-550 ATV
DRILL METHOD: 31/4' HSA
HAMMER TYPE: Automatic
ELEV.
(ft)
DEPTH
(ft)
BLOW COUNT
BLOWS PER FOOT
0 20 40 60 80 100
SAMP.
NO
-
MOI
L
O
G
SOIL AND ROCK DESCRIPTION
0.5ft
O.5ft
O.5ft
744.0
GROUND SURFACE
744.0 0.0
3. 3 .
3 6
2 4
1. .3.
1 1
3 14
50/4"
50/2"
50/1"
50/2"
SS-1
M
M
M
M
W
W
D
D
D
D
X
X
X
X
X
X
X
X
FILL
Brown, loose SILT (ML) with Sand
735.0 9.0
742.0
2.0
WOH
2
1
740.0
4.0
3
3
3
738.0
6.0
2
2
2
SS-3
736.0
8.0
2
2
1
SS-4
WOH
1
WOH
SS-5
734.0
732.0
10.0
12.0
WOH
1
13
SS-6
X
X
ALLUVIAL
733.0 Gray, very loose Well -Graded SAND (SW) 11.0
730.0
14.0
31
50/4"
SS-7
731.5 RESIDUAL 12.5
Gray and white, dense, saprolitic Silty SAND
(SM)
SS-8
728.0
16.0
50/2"
SS-9
WEATHERED ROCK
Granite
726.0
18.0
50/1"
SS-10
721.0
23.0
50/2"
50/1"
50/1"
Boring Terminated at 23.1 ft on Crystalline
Rock
SS-11
D
CRYSTALLINE ROCK
Granite

0
c�
0
N
W
!Y
CO
Q
J
(n
D
0
F
(n
F
Z
(3
SUMMIT 320 Executive Court SOIL TEST BORING LOG
Hillsborough, North Carolina 27278
DESIGN AND ENGINEERING SERVICES www.summitcle.net
1 OF 1
PROJECT NUMBER: 18-0372.042
CITY: Greensboro
STATE: North Carolina
GEOLOGIST: Aaron Gross, PG
PROJECT NAME: Mitchell Backwash Force Main
GROUND WATER (ft)
BORING NUMBER: B-03
CLIENT: Critek Engineering Group
0 HR. N/A
ELEVATION: 740.0 ft
NORTHING N/A
EASTING N/A
24 HR. MAD
TOTAL DEPTH: 23.9 ft
DATE STARTED 12/30/20
COMPLETED 12/30/20
CAVE DEPTH N/A
DRILLER: Luis Gonzalez
DRILL RIG: CME-550 ATV
DRILL METHOD: 31/4' HSA
HAMMER TYPE: Automatic
ELEV.
(ft)
DEPTH
(ft)
BLOW COUNT
BLOWS PER FOOT
0 20 40 60 80 100
SAMP.
NO
-
MOI
L
O
G
SOIL AND ROCK DESCRIPTION
0.5ft
O.5ft
0.5ft
740.0
GROUND SURFACE
740.0 0.0
739.0
0.0
8. 31 .
5 5
3. 6
8. 9
4 - ,36.
50/6" . . . . . . . . . . . . . . . . . 99
50/2"
50/0"
50/2"
50/0"
SS-1
M
M
M
M
W
W
D
D
D
D
X
X
X
X
X
X
FILL
Brown and red, medium stiff Clayey SAND
(SC) with Gravel
734.0 6.0
738.0
2.0
2
6
3
25
2
736.0
4.0
4
734.0
6.0
2
2
3
SS-3
732.0
8.0
3
3
6
SS-4
RESIDUAL
Tan and white, medium dense to very dense,
saprolitic Silty SAND (SM)
728.5 11.5
730.0
10.0
5
12
24
SS-5
728.0
12.0
32
42
57
SS-6
SS-7
726.0
14.0
50/2"
iA
WEATHERED ROCK
Granite
721.0 19.0
SS-8
724.0
16.0
50/0"
SS-9
721.0
19.0
50/2"
SS-10
50/0"
1 I
CRYSTALLINE ROCK
Granite
716.1 23.9
Boring Terminated at 23.9 ft in
Crystalline Rock

SUS MIT 320 Executive Court CORE BORING REPORT
Hillsborough, North Carolina 27278
DESIGN AND ENGINEERING SERVICES I www.summitde.net
SHEET 1 OF 1
PROJECT NUMBER: 18-0372.042
CITY: Greensboro
STATE: North Carolina
GEOLOGIST: Aaron Gross, PG
PROJECT NAME: Mitchell Backwash Force Main
GROUND WATER (ft)
BORING NUMBER: B-03
CLIENT: Critek Engineering Group
0 HR. N/A
ELEVATION: 740.0 ft
NORTHING N/A
EASTING N/A
24 HR. MAD
TOTAL DEPTH: 23.9 ft
DATE STARTED 12/30/20
COMPLETED 12/30/20
CAVE DEPTH N/A
DRILLER: Luis Gonzalez
DRILL RIG: CME-550 ATV
DRILL METHOD: 3'/d' HSA
HAMMER TYPE: Automatic
CORE SIZE NQ2
TOTAL RUN 4.9 ft
ELEV.
DEPTH
RUN
RATE
REC.
U RQD
SAMP.
REC. RARQD
TA
L
O
DESCRIPTION AND REMARKS
(ft)
(ft)
(ft)
(Min/ft)
Vo)
�0
NO.
�0)
�0)
G
721.0 Begin Coring @ 19.0 ft 19.0
721.0
19.0
4.9
3:00/1.0
(3.8)
(04)
3:00/1.0
78
8
\
CRYSTALLINE ROCK
3:00/1.0
\
Granite
716.1
23.9
3:00/1.3:00/0.9
716.1 23.9

'II SLJtt1I1II 320 Executive Court.Hillsborough, NC 2127$
DESIGN AND ENGINEERING SERVICES Phone I 919.732.3M Web // www.sumrnitde.net
PROJECT NO.: 18-0372.042 DATE: 12/30/2019
CLIENT NAME: Critek Engineering Group BORING NO.: B-03
PROJECT NAME: Mitchell Force Main DRILLER NAME: Luis Castillo
DRILL RIG: CME-550X
CORE SIZE: NQ2
CORE DESCRIPTION: Hard, very light
brownish red Granite
CORE RUN: 4.9 Feet
REC: 3.8 Feet (77%)
RQD: 0.4 Feet (8%)
CORE PHOTOGRAPHS
BOX 1: 19.0 - 23.9 FEET
-_- __lig
19.0 ft -'421..-:. WS
,-----__ Iiiiiimai4-------:.- .- -_—_,i,----.-..- --;s-----,:-:-....„1-, ,='.---:_,-----=:-. ---.--------
' la
I
23.9 ft
,� �
0 1 2
FEET

SUMMIT 504 Meadowlands Drive. Hillsbarough. NC 27278
DESIGN AND ENGINEERING SERWICES Phone // 919.132.3883 Web // www.summitde.net
Soil Classification Report
ASTM D 2487, ASTM D2216, ASTM D4318, ASTM D1140
Project Number 18-0372.042 Date 1/10/2020
Project Name Mitchell Backwash Force Main Sample Number S-930A
Client Critek Engineering
Sample Description Light Brown Clayey Sand with Gravel Group Symbol Sc
Sample Location B-1 SS-4 8.5'-10.0'
Testing Results
Natural Moisture 22.6% % Fines 45.6%
Sand 39.0%
Gravel 15.4%
Casagrancle's Plasticity Chart
60
50
v 40
30
U
a 20
10 f CL
0
0
Liquid Limit 43
Plastic Limit 24
Plasticity Index 19
20 40 60 80 100
Liquid Limit
Liquid Limit and Plastic Limit Test Parameters
Preparation Method
Dry
Testing Method
Single Point
Liquid Limit Device Type
Manual
Plastic Limit Rolling Method
Hand
Grooving Tool Type
Metal
Aaron Hackett, El
Lab Manager
USCS Group Symbol Descriptions
CH
High Plasticity Clay
MH
High Plasticity Silt
CL
Low Plasticity Clay
ML
Low Plasticity Silt
SM
Silty Sand
SC
Clayey Sand
CL-ML
Silty Clay
Remarks:
Material Finer than #200 Sieve Test Parameters
Wash Method A
Soak Time 2 hours
Dry Mass Determination Method Direct
Size of Initial Dry Mass (g) 99.07
Jeff Elliott, PE
CMT & SI Department Manager

SUMMIT504 Meadowlands Drive, Hillsborough, NC 27278
0[SIGN AND ENGINEERING SERYICIS Phone // 919.732.3883 Web 11 www.summitde.net
Soil Gradation Report for Samples with < 12% Fines
ASTM D2487,ASTM D1140
Project Number 18-0372.042 Date 1/10/2020
Project Name Mitchell Backwash Force Main Sample Number S-930A
Client Critek Engineering
100.0%
90.0%
80.0%
70.0%
60.0%
ao
c
m 50.0%
a
c
w
V
t40.O%
a
30.0%
20.0%
10.0%
0.0%
100.0
10.0 1.0 0.1
Grainsize (mm)
Liquid Limit:
43
Plastic Limit:
24
Plasticity Index:
19
D60
N/A
D30
N/A
D10
N/A
Cu
0.00
Cc
0.00
Classification:
Light Brown Clayey Sand with
Gravel (SC)
Remarks:
Aaron Hackett, El
Lab Manager
0.01
Sieve #
mm
% Passing
2
50.8
100.0%
1.5
38.1
100.0%
1
25.4
100.0%
0.75
19.0
100.0%
0.375
9.51
100.0%
#4
4.76
84.6%
#10
2.0
77.8%
#40
0.42
64.9%
#6o
0.250
59.0%
#100
0.149
52.9%
#200
0.074
45.6%
Jeff Elliott, PE
CMT & SI Department Manager

SUMMIT 504 Meadowlands Drive. Hillsbarough. NC 27278
DESIGN AND ENGINEERING SERWICES Phone // 919.132.3883 Web // www.summitde.net
Soil Classification Report
ASTM D 2487, ASTM D2216, ASTM D4318, ASTM D1140
Project Number 18-0372.042 Date 1/10/2020
Project Name Mitchell Backwash Force Main Sample Number S-930B
Client Critek Engineering
Sample Description Light Brown Sandy Lean Clay Group Symbol CL
Sample Location B-1 SS-7 14.0'-16.0'
Testing Results
Natural Moisture 20.4% % Fines 69.9%
Sand 30.1%
Gravel 0.0%
Casagrancle's Plasticity Chart
60
50
v 40
30
U
a 20
10 f CL
0
0
Liquid Limit 38
Plastic Limit 18
Plasticity Index 20
20 40 60 80 100
Liquid Limit
Liquid Limit and Plastic Limit Test Parameters
Preparation Method
Dry
Testing Method
Single Point
Liquid Limit Device Type
Manual
Plastic Limit Rolling Method
Hand
Grooving Tool Type
Metal
Aaron Hackett, El
Lab Manager
USCS Group Symbol Descriptions
CH
High Plasticity Clay
MH
High Plasticity Silt
CL
Low Plasticity Clay
ML
Low Plasticity Silt
SM
Silty Sand
SC
Clayey Sand
CL-ML
Silty Clay
Remarks:
Material Finer than #200 Sieve Test Parameters
Wash Method A
Soak Time 2 hours
Dry Mass Determination Method Direct
Size of Initial Dry Mass (g) 186.52
Jeff Elliott, PE
CMT & SI Department Manager

SUMMIT504 Meadowlands Drive, Hillsborough, NC 27278
0[SIGN AND ENGINEERING SERVICES Phone // 919.732.3883 Web 11 www.summitde.net
Project Number
Project Name
Client
100.0%
90.0%
80.0%
70.0%
60.0%
ao
c
30.0%
20.0%
10.0%
0.0%
100.0
Soil Gradation Report for Samples with < 12% Fines
ASTM D2487, ASTM D1140
18-0372.042
Mitchell Backwash Force Main
Critek Engineering
n. 44-1- C:- - r1A:'4-:L...4-:--
10.0 1.0
Grainsize (mm)
Liquid Limit:
38
Plastic Limit:
18
Plasticity Index:
20
D60
N/A
D30
N/A
D10
N/A
Cu
0.00
Cc
0.00
Classification:
Light Brown Sandy Lean Clay (CL)
Remarks:
Aaron Hackett, El
Lab Manager
Date 1/10/2020
Sample Number 5-930B
0.1
0.01
Sieve #
mm
% Passing
2
50.8
100.0%
1.5
38.1
100.0%
1
25.4
100.0%
0.75
19.0
100.0%
0.375
9.51
100.0%
#4
4.76
100.0%
#10
2.0
99.2%
#40
0.42
92.3%
#6o
0.250
87.0%
#100
0.149
81.6%
#200
0.074
69.9%
Jeff Elliott, PE
CMT & SI Department Manager

SUMMIT 504 Meadowlands Drive. Hillsbarough. NC 27278
DESIGN AND ENGINEERING SERWICES Phone // 919.132.3883 Web // www.summitde.net
Soil Classification Report
ASTM D 2487, ASTM D2216, ASTM D4318, ASTM D1140
Project Number 18-0372.042 Date 1/10/2020
Project Name Mitchell Backwash Force Main Sample Number S-930C
Client Critek Engineering
Sample Description Light Brown Silt Group Symbol ML
Sample Location B-2 SS-4 6.0'-8.0'
Testing Results
Natural Moisture 45.2% % Fines 87.6%
Sand 12.4%
Gravel 0.0%
Casagrancle's Plasticity Chart
60
50
v 40
30
U
a 20
10 f CL
0
0
Liquid Limit 43
Plastic Limit 27
Plasticity Index 16
20 40 60 80 100
Liquid Limit
Liquid Limit and Plastic Limit Test Parameters
Preparation Method
Dry
Testing Method
Single Point
Liquid Limit Device Type
Manual
Plastic Limit Rolling Method
Hand
Grooving Tool Type
Metal
Aaron Hackett, El
Lab Manager
USCS Group Symbol Descriptions
CH
High Plasticity Clay
MH
High Plasticity Silt
CL
Low Plasticity Clay
ML
Low Plasticity Silt
SM
Silty Sand
SC
Clayey Sand
CL-ML
Silty Clay
Remarks:
Material Finer than #200 Sieve Test Parameters
Wash Method A
Soak Time 2 hours
Dry Mass Determination Method Direct
Size of Initial Dry Mass (g) 139.52
Jeff Elliott, PE
CMT & SI Department Manager

SUMMIT504 Meadowlands Drive, Hillsborough, NC 27278
0[SIGN AND ENGINEERING SERVICES Phone // 919.732.3883 Web 11 www.summitde.net
Project Number
Project Name
Client
100.0%
90.0%
80.0%
70.0%
60.0%
ao
c
30.0%
20.0%
10.0%
0.0%
100.0
Soil Gradation Report for Samples with < 12% Fines
ASTM D2487, ASTM D1140
18-0372.042
Mitchell Backwash Force Main
Critek Engineering
n. 44-1- C:- - r1A:'4-:L...4-:--
10.0 1.0
Grainsize (mm)
Liquid Limit:
43
Plastic Limit:
27
Plasticity Index:
16
D60
N/A
D30
N/A
D10
N/A
Cu
0.00
Cc
0.00
Classification:
Light Brown Silt (ML)
Remarks:
Aaron Hackett, El
Lab Manager
Date 1/10/2020
Sample Number 5-930C
0.1
0.01
Sieve #
mm
% Passing
2
50.8
100.0%
1.5
38.1
100.0%
1
25.4
100.0%
0.75
19.0
100.0%
0.375
9.51
100.0%
#4
4.76
100.0%
#10
2.0
99.0%
#40
0.42
95.0%
#6o
0.250
94.2%
#100
0.149
92.4%
#200
0.074
87.6%
Jeff Elliott, PE
CMT & SI Department Manager

SUMMIT 504 Meadowlands Drive. Hillsbarough. NC 27278
DESIGN AND ENGINEERING SERWICES Phone // 919.132.3883 Web // www.summitde.net
Soil Classification Report
ASTM D 2487, ASTM D2216, ASTM D4318, ASTM D1140
Project Number 18-0372.042 Date 1/10/2020
Project Name Mitchell Backwash Force Main Sample Number S-930D
Client Critek Engineering
Sample Description Tan Clayey Sand Group Symbol Sc
Sample Location B-3 SS-3 4.0'-6.0'
Testing Results
Natural Moisture 16.1% % Fines 38.9%
Sand 56.9%
Gravel 4.2%
Casagrancle's Plasticity Chart
60
50
v 40
30
U
a 20
10 f CL
0
0
Liquid Limit 39
Plastic Limit 22
Plasticity Index 17
20 40 60 80 100
Liquid Limit
Liquid Limit and Plastic Limit Test Parameters
Preparation Method
Dry
Testing Method
Single Point
Liquid Limit Device Type
Manual
Plastic Limit Rolling Method
Hand
Grooving Tool Type
Metal
Aaron Hackett, El
Lab Manager
USCS Group Symbol Descriptions
CH
High Plasticity Clay
MH
High Plasticity Silt
CL
Low Plasticity Clay
ML
Low Plasticity Silt
SM
Silty Sand
SC
Clayey Sand
CL-ML
Silty Clay
Remarks:
Material Finer than #200 Sieve Test Parameters
Wash Method A
Soak Time 2 hours
Dry Mass Determination Method Direct
Size of Initial Dry Mass (g) 270.58
Jeff Elliott, PE
CMT & SI Department Manager

SUMMIT504 Meadowlands Drive, Hillsborough, NC 27278
0[SIGN AND ENGINEERING SERVICES Phone // 919.732.3883 Web 11 www.summitde.net
Project Number
Project Name
Client
100.0%
90.0%
80.0%
70.0%
60.0%
ao
c
30.0%
20.0%
10.0%
0.0%
100.0
Soil Gradation Report for Samples with < 12% Fines
ASTM D2487, ASTM D1140
18-0372.042
Mitchell Backwash Force Main
Critek Engineering
n. 44-1- C:- - r1A:'4-:L...4-:--
10.0 1.0
Grainsize (mm)
Liquid Limit:
39
Plastic Limit:
22
Plasticity Index:
17
D60
N/A
D30
N/A
DIO
N/A
Cu
0.00
Cc
0.00
Classification:
Tan Clayey Sand (SC)
Remarks:
Aaron Hackett, El
Lab Manager
Date 1/10/2020
Sample Number 5-930D
0.1
0.01
Sieve #
mm
% Passing
2
50.8
100.0%
1.5
38.1
100.0%
1
25.4
100.0%
0.75
19.0
100.0%
0.375
9.51
100.0%
#4
4.76
95.8%
#10
2.0
81.8%
#40
0.42
58.9%
#6o
0.250
51.8%
#100
0.149
45.6%
#200
0.074
38.9%
Jeff Elliott, PE
CMT & SI Department Manager

Upland Data
34

WETLAND DETERMINATION DATA FORM - Eastern Mountains and Piedmont Region
Project/Site: _�1�, 4AI, A-W b�ro.1'yi I.-A,'tft City/County: N11l t oV d Sampling Date:
ApplicantlOwner: CAU o Co t9t -,to0 State: NC. Sampling Point: UPLAND
Investigator(s): JL. (, 20VIK � jL.td► jE Vj Section, Township, Range:
Landfonn (hillslope, terrace, etc.): Local relief (concave, convex, none): Slope (%}:
Subregion (LRR or MLRA): Lat: '] (D Long: I Datum:
Soil Map Unit Name: Ch6VAL NWI classification: , !
Are climatic ! hydrologic conditions on the site typical for this time of year? Yes _
Are Vegetation Soil or Hydrology significantly disturbed?
Are Vegetation Soil or Hydrology naturally problematic?
No (if no, explain in Remarks.)
Are "Normal Circumstances" present? Yes V No
(If needed, explain any answers in Remarks.)
SUMMARY OF FINDINGS - Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes No t/ Is the Sampled Area
Hydric Soil Present? Yes Nowithin a Wetland? Yes No
Wetland Hydrology Present? Yes No=
Remarks: j
HYDROLOGY
Wetland Hydrology Indicators:
Secondar Indicators minimum of two re wired
Primary Indicators (minimum of one is required: check all that apply)
_ Surface Soil Cracks (136)
_ Surface Water (Al)
— True Aquatic Plants (1314)
, �� Sparsely Vegetated Concave Surface (138)
_ High Water Table (A2)
— Hydrogen Sulfide Odor (Cl)
— Drainage Patterns (610)
_ Saturation (A3)
Oxidized Rhizospheres on Living Roots (C3)
— Moss Trim Lines (B16)
_ Water Marks (131)
Presence of Reduced Iron (C4)
— Dry -Season Water Table (C2)
_ Sediment Deposits (132)
_ Recent Iron Reduction in Tilled Soils (C6)
— Crayfish Burrows (C8)
_ Drift Deposits (133)
Thin Muck Surface (C7)
— Saturation Visible on Aerial Imagery (C9)
_ Algal Mat or Crust (134)
_ Other (Explain in Remarks)
— Stunted or Stressed Plants (D1)
_ Iron Deposits (B5)
— Geomorphic Position (D2)
_ Inundation Visible on Aerial Imagery (137)
— Shallow Aquitard (D3)
_ Water -Stained Leaves (139)
— Microtopographic. Relief (134)
_ Aquatic Fauna (1313)
___- FAG -Neutral Test (05)
Field Observations:
Surface Water Present?
Yes No Depth (inches):
Water Table Present?
s
Yes No Depth (inches):. t)
Saturation Present?
Yes No Depth (inches):
Wetland Hydrology
Present? Yes No
includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
41
- � ye f." vj tAr4 as-4f4
US Army Corps of Engineers Eastern Mountains and Piedmont - Version 2.0

VEGETATION (Four Strata) — Use scientific names of plants.
Sampling Point: JO-Wb
! Absolute Dominant Indicator
Tree Stratum (Plot size: % Cover Species? Status
2. PCCpQ.y 5.0 A
3. V\i n It L�-
4, c
-Total Cover
50% of total cover: !!bO 20% of total cover:
Sapling/Shrub Stratum (Plot size: 15 ! ''U:"}
1.
F
2. VAC'M
6.
9.
= Total Cover
50% of total cover: 20% of total cover: a2
Herb Stratum (Plot size: }
1. ut,k 5 -
3. NL l
5.
6.
9.
11.
= Total Cover
50% of total cover: 20% of total cover:_
4
Woody Vine Stratum (Plot size: /y�l � - )
Dominance Test worksheet:
Number of Dominant Species
That Are OBL, FACW, or FAC: (A)
Total Number of Dominant
Species Across All Strata: (B)
Percent of Dominant Species %( (A
That Are OBL, FACW, or FAC: �T ll (AIB}
Prevalence Index worksheet:
Total % Cover of:
Multiply by:
OBL species -9
x 1 W
FACW species :3 Q
x 2 = t0 Q
FAG species 9-5 _
x 3 =
FACU species 0
x 4 W .-It
UPL species 0
x 5 =
Column Totals:
(A) (B)
Prevalence Index = BIA
ff��
Hydrophytic Vegetation Indicators:
_ 1 - Rapid Test for Hydrophytic Vegetation
2 - Dominance Test is >60%
3 - Prevalence Index is <-3.0'
_ 4 - Morphological Adaptations' (Provide supporting
data in Remarks or on a separate sheet)
— Problematic Hydrophytic Vegetation' (Fxplain)
'Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Definitions of Four Vegetation Strata:
Tree -- Woody plants, excluding vines, 3 in. (7.6 cm) or
more in diameter at breast height (DBH), regardless of
height.
SaplinglShrub -- Woody plants, excluding vines, less
than 3 in. DBH and greater than or equal to 3,28 ft (1
nt) tall.
Herb - All herbaceous (non -woody) plants, regardless
of size, and woody plants less than 3,28 It tall.
Woody vine - All woody vines greater than 3.28 ft in
1.
2.
3,
4' Hydrophytic
5. Vegetation
= Total Cover Present? Yes No
50% of total cover: 20% of total cover:
Remarks: (Include photo numbers here or on a separate sheet.)
,y Vt,.r1C, QVI
f
Q,v 10 f�3 4 Ei q � . l e , y` i : S �. i V. rs., " 1 .
-OA CtJ 4fe_. _ i VN `--kO
US Army Corps of Engineers Eastern Mountains and Piedmont - Version 2.0

SOIL
Sampling Point: Upypa'b
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth Matrix Redox Features
(inches) Color (moist) % _ Color (moist) % _Type' Loc' Texture �q Remarks
\J_113 � Wflv �1.,. a .0&vvt
RM=Reduced Matrix. M
Hydric Soil Indicators:
Flistosol (Al)
Histic Epipedon (A2)
Black Histic (A3)
_ Hydrogen Sulfide (A4)
Stratified Layers (A5)
2 cm Muck (A10) (LRR N)
_ Depleted Below Dark Surface (All)
Thick Dark Surface (Al 2)
Sandy Mucky Mineral (Si) (LRR N,
MLRA 147, 148)
Sandy Gleyed Matrix (S4)
_ Sandy Redox (S5)
_ Stripped Matrix (S6)
Restrictive Layer (if observed):
Type:
Depth (inches):
Remarks:
Location: PL-Pore Lining, M=Matrix.
Indicators for Problematic Hydric S
_ Dark Surface (S7)
— Polyvalue Below Surface (S8) (MLRA 147,148)
Thin Dark Surface (S9) (MLRA 147, 148)
Loamy Gleyed Matrix (F2)
Depleted Matrix (F3)
_ Redox Dark Surface (F6)
— Depleted Dark Surface (F7)
_ Redox Depressions (FB)
Iron -Manganese Masses (F12) (LRR N,
MLRA 136)
_ Umhric Surface (F13) (MLRA 136, 122)
'Piedmont Floodplain Soils (F19) (MLRA 148)
Red Parent Material (F21) (MLRA 127, 147)
_ 2 crn Muck (A1o) (MLRA 147)
— Coast Prairie Redox (A16)
(MLRA 147, 148)
Piedmont Floodplain Soils (F19)
(MLRA 136, 147)
_ Very Shallow Dark Surface (TF12)
Other (Explain in Remarks)
3€ndicators of hydrophytic vegetation and
wetland hydrology must be present,
unless disturbed or ❑roblematic.
Hydric Soil Present? Yes No V/
US Army Corps of Engineers Eastern Mountains and Piedmont - Version 2.0