20160275 Ver 1_Email_20160317

Strickland, Bev
From:Miller, Heather <[e-mail]>
Sent:Thursday, March 17, 2016 10:01 AM
To:Montalvo, Sheri A
Cc:Strickland, Bev
Subject:RE: North Hamby Creek Outfall (DWR # 20160275) - EMAIL 1
Attachments:DWQ Complete PCN for 401.pdf; Detail Sheets.pdf
Sheri,

No problem! Please find attached .pdfs of the permit application and the detail sheets found in the drawing set. As the
complete drawing set file is very large, I will send the design sheets in 2 additional emails for three total emails. I know
there is an easier way to do this, but in order to get these to you as quickly as possible, I’m going to clutter up your
inbox. Sorry! Hopefully, this won’t cause problems on your end getting everything into your system. Let me know if you
need anything else.

Thank you!

Heather C. Miller
LaBella Associates, P.C.
Direct: 704-941-2174

From: Montalvo, Sheri A \[mailto:[e-mail]\]
Sent: Thursday, March 17, 2016 9:42 AM
To: Miller, Heather
Cc: Strickland, Bev
Subject: North Hamby Creek Outfall (DWR # 20160275)

Heather,

Can you please send an electronic version of the above project so that we can get it into our system easier?

Thanks

Sheri Montalvo
401 & Buffer Permitting Unit - Administrative Assistant
Department of Water Resources
Division of Environmental Quality

919-807-6303 (office)

[e-mail]

512 N. Salisbury St., Ste 942-G1, Raleigh, NC 27604
1617 Mail Serive Center
Raleigh, NC 27699-1617

1

Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.

2

Engineering
LABELLA Envvironme [al
.Associates, P.C. Planning
1520 South Boulevard, Suite 210 1 Charlotte, NC 28203 1 p 704.376.6423 1 f 704.332.61771 www.labellapc.com
March 10, 2016
North Carolina Department of Water Quality
WBSCP Unit
512 North Salisbury Street
Raleigh, NC 27604
Reference: North Hamby Creek Outfall Phase II Sanitary Sewer Improvements
City of Thomasville, Davidson County, North Carolina
LaBella Commission Number: 2150377
Subject: US Army Corps of Engineers Pre -Construction Notification (PCN) Application
DWQ-401 Certification
Please find attached the following information for the above referenced project:
1. Five (5) complete copies of the submittal sent to USACE for a 404 Certification. This
submittal includes:
a. Cover letter (1 page)
b. Project narrative (1 page)
c. Agent Authorization Form (1 page)
d. PCN Application Form (10 pages)
e. PCN Application Form Attachments (12 pages)
f. Attachment A — Preliminary Jurisdictional Determination Form (5 pages)
2. Fee Assessment (check for $240.00)
3. Full size project plans (2 sets)
4. 11 x 17 project plans (3 sets)
An Environmental Information Document has been included in the Engineering Report submitted to the
North Carolina Department of Environmental Quality, Division of Water Infrastructure for their review
and approval and issuance of the correct final environmental document, either a Categorical Exclusion
(CE) or Finding of No Significant Impact (FONSI).
Please advise us of any modifications or clarifications needed prior to approval by your office. Thank you
for your time and please do not hesitate to call me with any questions or comments regarding the
attached application or the project in general (Direct: 704-941-2174, Email: hmiller@labella c�c�). We
look forward to your comments and subsequent approval.
Relationships. Resources. Results.

Sincerely,
Heather C. Miller P.E., LEED® AP
Civil Engineer
CC: Morgan Huffman - City of Thomasville Public Works Director
Y:\2150377 -N Hamby SS Phase II\CFile\Ph1-5\010-Rev-Approvals\DWQ\DEQ_Cover_Letter_401 Certification 021916.doc
Relationships. Resources. Results.

Project Narrative
Project Summary
The project will consist of installing approximately 7,245 linear feet of 24 -inch diameter pipe for
a new sanitary sewer outfall with service connections consisting of 231 linear feet of 8 -inch
diameter pipe and 126 linear feet of 18 -inch diameter pipe. 45 new epoxy lined manholes will
be installed. New pipe and manhole installations will allow unrestricted flow and elimination of
SSO's from failing infrastructure.
Rational
Repeated sanitary sewer overflows occur due to pipe that is unable to handle existing flows due
to failing pipe and failing brick and mortar manholes. SSO's have resulted in various spills into
streams and near public streets. These streams lead into High Rock Lake, a major regional
recreational lake and part of the Yadkin River. This project will help reduce the nutrient loadings
and fecal coliform levels in High Rock Lake and the Yadkin River.
Project Description
The project will consist of replacing approximately 7,500 linear feet of outfall pipe ranging from
10 -inch to 18 -inch diameter pipe. The replacement will consist of approximately 7,245 linear
feet of 24 -inch diameter pipe for the new sanitary sewer outfall with service connections
consisting of 231 linear feet of 8 -inch diameter pipe and 126 linear feet of 18 -inch diameter
pipe. 45 new epoxy lined manholes will be installed. The replacement outfall will parallel an
existing maintained sewerline across upland developed areas. The project's service area is
primarily mixed uses, with residential and less dense commercial developments occurring along
thoroughfares. The new outfall crosses one perennial stream (North Hamby Creek) four times
on multiple properties. Each creek crossing of the new outfall will be perpendicular to the flow
of the creek and will installed by the bore and jack methodas to have no impact on the creek.
New pipe and manhole installations will allow unrestricted flow and elimination of SSO's from
failing infrastructure.
Downstream Treatment and Flow Acceptance
100 percent of the wastewater flow will be discharged to the Hamby Creek Wastewater
Treatment Plant (NPDES# 00024112). The plant is a 6.0 MGD capacity grade 4 wastewater
treatment facility.

AGENT AUTHORIZATION FORM
Project Owner: City of Thomasville
10 Salem Street
PO Box 368
Thomasville, NC 27360
336-475-4210
The undersigned, registered project owner for the CITY OF TH©MASVILLE, NORTH HAMBY CREEK
OUTFALL PHASE II SANITARY SEWER IMPROVEMENTS do hereby authorize Heather C. Miller, P.E. of
LaBella Associates. P.C. to act on my behalf and take all actions necessary for processing, issuance and
acceptance of this permit or certification and any and all standard and special conditions attached.
We hereby certify the above information submitted in this application is true and accurate to the best of
our knowledge.
Authorized Signature: Date: ZL
elly C ver, Manager

Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.4 January 2009
Pre -Construction Notification (PCN) Form
A. Applicant Information
1. Processing
1 a. Type(s) of approval sought from the Corps:
® Section 404 Permit ❑ Section 10 Permit
1 b. Specify Nationwide Permit (NWP) number: 12 or General Permit (GP) number:
1 c. Has the NWP or GP number been verified by the Corps? ❑ Yes ® No
1 d. Type(s) of approval sought from the DWQ (check all that apply):
® 401 Water Quality Certification — Regular ❑ Non -404 Jurisdictional General Permit
❑ 401 Water Quality Certification — Express ❑ Riparian Buffer Authorization
1 e. Is this notification solely for the record
because written approval is not required?
For the record only for DWQ
401 Certification:
❑ Yes © No
For the record only for Corps Permit:
❑ Yes ® No
1f. Is payment into a mitigation bank or in -lieu fee program proposed for
mitigation of impacts? If so, attach the acceptance letter from mitigation bank
or in -lieu fee program.
1 g. Is the project located in any of NC's twenty coastal counties If yes, answer 1h
below.
❑ Yes ® No
❑ Yes ® No
1 h. Is the project located within a NC DCM Area of Environmental Concern (AEC)?
❑ Yes ® No
2. Project Information
2a. Name of project:
North Hamby Creek Outfall Phase 11 Sanitary Sewer Improvements
2b. County:
Davidson
2c. Nearest municipality / town:
City of Thomasville
2d. Subdivision name:
N/A
2e. NCDOT only, T.I.P. or state project no:
N/A
3. Owner Information
3a. Name(s) on Recorded Deed:
3b. Deed Book and Page No.
Mr. Morgan Huffman, City of Thomasville, Public Services Director
10 Salem Street
3c. Responsible Party (for LLC if
applicable):
3d. Street address:
3e. City, state, zip:
Thomasville, NC 27361
3f. Telephone no.:
[phone]
3g. Fax no.:
[phone]
3h. Email address:
[e-mail]
Page 1 of 10
PCN Form — Version 1.4 January 2009

4. Applicant Information (if different from owner)
4a. Applicant is:
® Agent ❑ Other, specify:
4b. Name:
4c. Business name
(if applicable):
4d. Street address:
4e. City, state, zip:
4f. Telephone no.:
4g. Fax no.
4h. Email address:
5. Agent/Consultant Information (if applicable)
5a. Name:
Heather C. Miller, P.E.
5b. Business name
(if applicable):
LaBella Associates, P.0
5c. Street address:
1520 South Boulevard Suite 210
5d. City, state, zip:
Charlotte, North Carolina, 28203
5e. Telephone no.:
[phone]
5f. Fax no.:
[phone]
5g. Email address:
[e-mail]
Page 2of10

B. Project Information and Prior Project History
1. Property Identification
1a. Property identification no. (tax PIN or parcel ID):
See attached PCN Document and Figure 1
1b. Site coordinates (in decimal degrees):
I Latitude: See attached document Longitude: See attached document
1c. Property size:
acres
2. Surface Waters
2a. Name of nearest body of water to proposed project:
North Hamby Creek (High Rock Lake)
2b. Water Quality Classification of nearest receiving water:
C, Hamby Creek, 12-119-7-4-1
2c. River basin:
Yadkin Pee-Dee
3. Project Description
3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this
application:
See attached PCN Discussions Document and Figures 2 and 3.
3b. List the total estimated acreage of all existing wetlands on the property: None. See attached PCN document & Figure 4
3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: See attached PCN
3d. Explain the purpose of the proposed project: document & Figure
See attached PCN document. 5
3e. Describe the overall project in detail, including the type of equipment to be used:
See attached PCN document.
4. Jurisdictional Determinations
4a. Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property /
ro'ect (includingall prior hases in the past?
❑ Yes © No ❑ Unknown
Comments: See attached PCN discussions document
4b. If the Corps made the jurisdictional determination, what type
of determination was made?
❑ Preliminary ❑ Final
4c. If yes, who delineated the jurisdictional areas?
Name (if known):
Agency/Consultant Company:
Other:
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
N/A
S. Project History
5a. Have permits or certifications been requested or obtained for ❑ Yes © No ❑ Unknown
this project (including all prior phases) in the past?
5b. If yes, explain in detail according to "help file" instructions.
NIA
6. Future Project Plans
6a. Is this a phased project?
❑ Yes ® No
6b. If yes, explain.
NIA
Page 3 of 10
PCN Form — Version 1.4 January 2009

C. Proposed Impacts Inventory
1. Impacts Summary
1 a. Which sections were completed below for your project (check all that apply):
❑ Wetlands © Streams — tributaries ❑ Buffers ❑ Open Waters ❑ Pond Construction
2. Wetland Impacts
If there_ are wetland impacts proposed on the site, then complete this question for each wetland area impacted.
2a.
Wetland impact
number
Permanent (P) or
Temporary T
2b.
Type of impact
2c.
Type of wetland
2d.
Forested
2e.
Type of jurisdiction
Corps (404,10) or
DWQ (401, other)
2f.
Area of
impact
(acres)
W1 -
None
W2 -
W3 -
W4 -
W5 -
W6 -
2g. Total Wetland Impacts:
2h. Comments:
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted.
3a.
Stream impact
number
Permanent (P) or
Temporary (T)
3b.
Type of impact
3c.
Stream name
3d.
Perennial (PER) or
intermittent (INT)?
3e.
Type of
jurisdiction
3f.
Average
stream
width
(feet)
3g.
Impact
length
(linear
feet)
S1 T
None. Bore & Jack
North Hamby Creek
PER
Corps/DWQ
50
0
S2 T
None. Bore & Jack
North Hamby Creek
PER
Corps/DWQ
50
0
S3 T
None. Bore & Jack
North Hamby Creek
PER
Corps/DWQ
50
0
S4 T
None. Bore & Jack
North Hamby Creek
PER
Corp/DWQ
50
0
S5 -
Choose one
_
-
50
S6 -
Choose one
-
-
3h. Total stream and tributary impacts
0
3i. Comments:
Page 4 of 10
PCN Form — Version 1.4 January 2009

4. Open Water Impacts
If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of
the U.S. then indivi ually list all open water ter im_ acts below.
4a.
Open water
impact number
Permanent (P) or
Tem ora T
4b.
Name of waterbody
(if applicable)
4c.
Type of impact
4d.
Waterbody
type
4e.
Area of impact (acres)
01
None
02
03
04
4f. Total open water impacts
4g. Comments:
5. Pond or Lake Construction
If pond or lake construction proposed, the complete the chart below.
5a.
Pond ID number
5b.
Proposed use or
purpose of pond
5c.
Wetland Impacts (acres)
5d. 5e.
Stream Impacts (feet) Upland
(acres)
Flooded
Filled
Excavated
Flooded
Filled
Excavated
P1
None
P2
5f. Total:
5g. Comments:
5h. Is a dam high hazard permit required?
❑ Yes ❑ No If yes, permit ID no.
5i. Expected pond surface area (acres):
5j. Size of pond watershed (acres):
5k. Method of construction:
6. Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts
below. If any im acts require mitigation, then you MUST fill out Section D of this form.
6a. Project is in which protected basin?
❑ Neuse ❑ Tar -Pamlico ❑ Catawba ❑ Randleman ❑ Other:
6b.
Buffer Impact
number —
Permanent (P) or
Temporary,T.
6c.
Reason for impact
6d.
Stream name
6e.
Buffer
mitigation
required?
6f.
Zone 1
impact
(square
feet)
6g.
Zone 2
impact
(square
feet
B1 -
None
B2 -
B3 -
B4 -
B5 -
B6 -
6h. Total Buffer Impacts:
61. Comments:
Page 5 of 10

D. Impact Justification and Mitigation
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
See attached PCN document.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
See attached PCN document
2. Compensatog 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 yes, mitigation is required by (check all that apply):
❑ DWQ ❑ Corps
2c. If yes, which mitigation option will be used for this
project?
❑ Mitigation bank
❑ ro Payment to in -lieu fee ram
y program
❑ Permittee Responsible Mitigation
3. Complete H Using a Mit! anon Bank
3a. Name of Mitigation Bank: N/A
3b. Credits Purchased (attach receipt and letter)
Type: Choose one
Type: Choose one
Type: Choose one
Quantity:
Quantity:
Quantity:
3c. Comments:
4. Complete if Making a Payment to In -lieu Fee Program
4a. Approval letter from in -lieu fee program is attached.
❑ Yes
4b. Stream mitigation requested:
linear feet
4c. If using stream mitigation, stream temperature:
Choose one
4d. Buffer mitigation requested (DWQ only):
square feet
4e. Riparian wetland mitigation requested:
acres
4f. Non -riparian wetland mitigation requested:
acres
4g. Coastal (tidal) wetland mitigation requested:
acres
4h. Comments:
S. Complete if Using a Permittee Responsible Mitigation Plan
5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
Page 6 of 10
PCN Form — Version 1.4 January 2009

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

E. Stormwater Management and Diffuse Flow Plan (required by DWQ)
1. Diffuse Flow Plan
1a. Does the project include or is it adjacent to protected riparian buffers identified
❑ Yes Q No
within one of the NC Riparian Buffer Protection Rules?
1b. If yes, then is a diffuse flow plan included? If no, explain why.
❑ Yes ❑ No
2. Stormwater Management Plan
2a. What is the overall percent imperviousness of this project?
Less than 1 %
2b. Does this prosect require a Stormwater Mana ement Plan?
❑ Yes ❑X No
2c. If this project DOES NOT require a Stormwater Management Plan, explain why:
The project will only impact one watershed AND will result in less than 24% imperviousness.
2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan:
2e. Who will be responsible for the review of the Stormwater Management Plan?
3. Certified Local Government Stormwater Review
3a. In which local government's jurisdiction is thisproject?
City of Thomasville, Davidson County, NC
❑ Phase II
3b. Which of the following locally -implemented stormwater management programs
❑ NSW
USMP
apply (check all that apply):
❑ Water Supply Watershed
❑ Other:
3c. Has the approved Stormwater Management Plan with proof of approval been
❑ Yes ®No
attached?
4. DWQ Stormwater Program Review
❑Coastal counties
❑HQW
4a. Which of the following state -implemented stormwater management programs apply
ORW
(check all that apply):
RSessionLaw 2006-246
[]Other:
4b. Has the approved Stormwater Management Plan with proof of approval been
❑ Yes ❑X No
attached?
5. DWQ 401 Unit Stormwater Review
5a. Does the Stormwater Management Plan meet the appropriate requirements?
©Yes ❑ No
5b. Have all of the 401 Unit submittal requirements been met?
❑X Yes ❑ No
Page 8 of 10
PCN Form — Version 1.4 January 2009

F. Supplementary Information
1. Environmental Documentation (DWQ Requirement)
1 a. Does the project involve an expenditure of public (federal/state/local) funds or the
©yes
❑ No
use of public (federal/state) land?
1b. 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
X❑Yes
❑ No
(North Carolina) Environmental Policy Act (NEPAISEPA)?
1 c. If you answered "yes" to the above, has the document review been finalized by the
State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval
❑ Yes
®No
letter.)
Comments: See attached PCN document
2. Violations (DWG Requirement)
2a. Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated
Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards,
El Yes
®No
or Riparian Buffer Rules (15A NCAC 2B .0200)?
2b. Is this an after-the-fact permit application?
[I Yes
❑X No
2c. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s):
N/A
3. Cumulative Impacts (DWQ Requirement)
3a. Will this project (based on past and reasonably anticipated future impacts) result in
❑Yes
❑X No
additional development, which could impact nearby downstream water quality?
3b. If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the
most recent DWQ policy. If you answered "no," provide a short narrative description.
N/A
4. Sewage Disposal (DWQ Requirement)
4a. Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of wastewater
generated from
the proposed project, or available capacity of the subject facility.
The project will replace the existing sanitary sewer outfall which flows directly into the City of Thomasville Hamby Creek WWTP
(NPDES#00024112). See attached PCN discussion document for a discussion of the facility.
Page 9 of 10
PCN Form — Version 1.4 January 2009

5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or ❑ Yes No
habitat?
5b. Have you checked with the USFWS concerning Endangered Species Act
❑ Yes No
impacts?
5c. If yes, indicate the USFWS Field Office you have contacted.
-
5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
The website http://www.fws.gov/ralaigh/SpeciesfcntylisUdavidson.htmi was consulted. See attached PCN discussion document for a discussion of
Endangered Species or Designated Critical Habitat in Davidson County. See also Figure 6.
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as essential fish habitat?
❑ Yes ® No
6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat?
The NOAA Essential Fish Habitat Mapper (http:ttwww.habitat.noaa.gov/protection/efh/habitatmapper.html) was used to determine whether
designated essential fish habitat occurred in the project area.
7. Historic or Prehistoric Cultural Resources (Corps Requirement)
7a. Will this project occur in or near an area that the state, federal or tribal
governments have designated as having historic or cultural preservation
Yes ❑ No
status (e.g., National Historic Trust designation or properties significant in
North Carolina history and archaeology)?
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?
The North Carolina State Historic Preservation Office HPOWEB GIS Service (http://gis.ncdcr.gov/hpoweb/) was used to determine whether any
historic or archeological resources would be impacted. See attached PCN discussion document. See also Figure 7.
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA -designated 100 -year floodplain?
Q Yes ❑ No
8b. If yes, explain how project meets FEMA requirements:
See attached PCN discussion document for a discussion of FEMA requirements and compliance of this project.
8c. What source(s) did you use to make the floodplain determination?
FEMA FIRM maps (https://msc.fema.gov/portallsearch#searchresultsanchor) for Davidson County were used to make the floodplain
determination. See attached PCN discussion document. See also Figure 8.
KELL� CRMERL
Applicant/AgenVs Printed NameA(Agent's
an gen's Signature
Date
ture valid only If an authorization
m th applicant isprovided.)
Page 10 of 10

PCN Discussions Document
13.1a. Property Identification No. (Tax PIN or Parcel ID):
City of Thomasville with Sanitary Sewer Easements across multiple properties. A project
location map is included as part of this submittal.
B.1b. Site coordinates (in decimal degrees):
Start: Latitude, 35.874574 Longitude, -80.089882
End: Latitude, 35.883628 Longitude, -80.072108
See Figure 1 for a project location map.
Stream 9
Crossing
Latitude
Longitude
1
35.874578
-80.089647
2
35.875643
-80.087595
3
35.880347
-80.076758
4
35.883535
-80.072215
B.3a. Describe the existing conditions of the site and the general land use in the vicinity of
the project at the time of this application:
The project will parallel an existing, maintained sewerline easement across upland areas. The
majority of the proposed replacement sewerline will be installed through the center of the City
of Thomasville's developed downtown business area. The project's service area is primarily
mixed uses, with less dense commercial and residential developments occurring along
thoroughfares.
Figure 2 shows land use along the project alignment. Figure 3 shows the soils along the proejct
alignment.
B.3b. List the total estimated acreage of all existing wetlands on the orooertv:
Based on aerial photography from the U.S. Fish and Wildlife Service National Wetlands
Inventory, no wetlands were found. The relative incision of North Hamby Creek in this area
suggests that water tables are maintained below root zones.
Figure 4 shows the locations of any wetlands in/around the project area.
B.3c. List the total estimated linear feet of all existing streams (intermittent and Derennial)
on the property:
The project will cross one perennial stream (North Hamby Creek) four times on multiple
properties. Each will be crossed perpendicular to its flow by the project alignment with an
estimated length of 20 feet at each crossing. All four crossings will have no impact as they will
be installed by the bore and jack method.

Figure 5 shows the stream crossing locations along the project alignment.
$.3d. Describe the purpose of the proposed prosect;
The City of Thomasville's Wastewater Collection System needs to continually convey and
contain wastewater generated in the service area to the treatment facility. Failure to convey
and contain the wastewater in the collection system will result in sanitary sewer overflows
(SSOs) that could endanger public health and have a major detrimental impact on the natural
environment. In order to provide continuous service without SSOs, all components in the
collection system must operate without failure or when failure is unavoidable, redundancy or
containment must be provided in order to ensure that SSOs do not occur. The existing North
Hamby Creek Outfall is subject to failure due to accelerated hydrogen sulfide decay. The outfall
requires replacement in order to fulfill the primary need to contain and convey wastewater and
eliminate SSOs.
B.3e. Describe the overall project in detail, including the type of equipment to be used:
The project will install new sanitary sewer lines parallel and adjacent to an existing outfall.
Although the new line will parallel the existing maintained easement, moderate clearing will be
required where the line traverses through less dense commercial and residential developments.
Moderate clearing will be required to accommodate the new line in locations where new
construction easements are proposed. A new trench will be excavated to the designed depth
and new lines installed. The trench will be backfilled with native topsoil sidecast during
excavation. The bore and jack method will be used in locations where the new line crosses
North Hamby Creek as well as road crossings. Excess material will be transported off-site and
disposed of in upland areas, protected from erosion and run-off. Backhoes and front end
loaders will perform the majority of the construction. Support and maintenance vehicles will
also be used.
Erosion control measures will include sediment fence, gravel check dams, inlet and outlet
protection, temporary construction entrances, temporary diversion ditches, silt fence stone
outlets, type "B" temporary wet weather ditch crossings, and bore and jack erosion control
measures. The devices will be designed to accommodate the 25 year storm. Design drawings
will be prepared and submitted to the North Carolina Department of Environmental Quality,
North Carolina Department of Transportation, and the City of Thomasville for approvals prior
to any construction beginning.
B.4a. Have iurisdictional wetland or stream determinations by the. Corps or state been
requested or obtained for this property 1 proiect (including all prior phases) in the past?
No. The existing outfall is over 100 years old and has been in service since prior to regulation
over stream and wetland resources.
D.1a. Specifically describe measures taken to avoid or minimize the ro osed impacts in
designing proiect.
All stream crossings of the new outfall will installed by the bore and jack method and will be
accomplished as near to perpendicular as possible. Most of the new outfall will be installed

upslope of the existing easement. In areas where the new outfall does not parallel an existing
easement a new 20 -feet easement has been proposed and has been designed to minimize as
much environmental impact as possible. Temporary clearing for construction will be minimal as
construction equipment will utilize the existing easement where applicable and in areas where
additional easement is required, a 10 -feet temporary construction easement will be utilized.
D.1b Specifically describe measures taken to avoid or minimize _the _proposed _impacts
through construction techniques.
Pre -construction contours will be restored and disturbed areas promptly returned to pre -
construction conditions through repaving, revegetating or replacing with new gravel. Sediment
fencing will be installed on the down slope edge of the right-of-way prior to construction and
maintained until vegetation is reestablished. Contractors will be instructed to schedule line
installation across wet weather ditches during dry weather. Rip -rap installed at wet weather
ditch crossings to stabilize the channel after construction will be limited to the bed and banks
impacted only and depressed into the bed so that the original contours are retained. No
uncured concrete will be allowed to contact surface waters.
E.2a. What is the overall percent imperviousness of this project?
Imperviousness of the project once complete will be less than one percent as the finished line
will be buried. No additional impervious areas will be created other than the 45 manholes that
will be installed and total approximately 900 ft2.
F.1c. If you answered "yes" to the above, has the document review been finalized by the
State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval letter.)
An ER/EID has been prepared and submitted pursuant to NCDEQ Division of Water
Infrastructure requirements. The document is currently under review and will be approved
prior to initiating any ground disturbing activity.
F.4a. Clearly detail the ultimate treatment methods and disposition _(non -_d_ isch_arge or
discharge) of wastewater generated from the proposed project, or available capacity of the
subject facility.
Hamby Creek WWTP is a 6.0 MGD capacity grade 4 wastewater treatment facility using the 5 -
stage Bardenpho process with post aeration to achieve biological nutrient reduction of both
phosphorus and nitrogen. Headworks equipment consists of an automated solids removal bar
screen and a grit removal system. Secondary treatment consists of two parallel trains of
treatment, each consisting of an anaerobic zone, an anoxic zone, an oxidation ditch, and second
anoxic zone, and reaeration. Removal of activated sludge is accomplished in two circular
secondary clarifiers equipped for removal of solids for return to the process of wasting to a
digestion system. Effluent from the two circular clarifiers is filtered through 10 micron disk
filters and then receives disinfection via a UV system prior to post aeration and discharge into
Hamby Creek. A proprietary solids reduction process is also in place via a side stream to reduce
the amount of solids that must be removed. Waste activated sludge is belt pressed and
landfilled or anaerobically digested to standards for class B sludge as defined by EPA in CFR Part

503 then applied to farm land as a beneficial reuse. No land application of biosolids from
Thomasville occurred in 2014. (source: htt : www.thomasville-
n c.gov/content/dd/docs/2014 / 2OAn n ua I%2OWastewater%2OReport. pdf).
F.5d. What data sources did you use to determine whether your site would impact
Endangered Species or Designated Critical Habitat?
The us Fish and Wildlife Service's website
http://www.fws.gov/raIeigh/species/cntylist/davidson.htmI was consulted to identify any
endanged species or designated critical habitat in the Davidson County. No known occurrences
of threatened or endangered species exist anywhere within the project area. There is no
designated critical habitat in Davidson County. Schweinitz's Sunflower (endangered) is listed as
a current record in Davidson County, but does not have suitable habitat along project
alignments. Bog Turtle (threatened by similarity of appearance to northern bog turtles) is listed
as probable in Davidson County but also does not have suitable habitat along project
alignments. Northern Long -Eared Bat (threatened) is as a current record in Davidson County,
but does not have a suitable habitat along project alignments. Bald Eagle (protected under the
bald and golden eagle protected act) is a current record in Davidson County but does not have
suitable habitat along project alignments.
Figure 6 lists the Endangered Species and Designated Critical Habitat in/around the project
area.
F.7b. What data sources did you use to determine whether your site would impact historic or
archeological resources?
The North Carolina State Historic Preservation Office HPOWEB Gis Service
(http:lZgis.ncdcr.gov/hpowebl) was used to determine locations where the new outfall would
cross into historic sites. One site was found along the path of the new outfall which is identified
as the Randolph Street Historic District (DV0842). However, the location of the proposed
project will not cross the properties where the historic buildings are located.
Figure 7 shows the location of historical sites along the project alignment.
F.8b. If yes, explain how project meets FEMA requirements:
The City of Thomasville's floodplain administrator will review the plans and issue a floodplain
permit. This project will require either a No -Rise Certification or a FEMA -approved Conditional
Letter of Map Revision (and Subsequent Letter of Map Revision) because of construction within
the regulatory floodway (Section F.1. of the City of Thomasville's Flood Damage Prevention
Ordinance). Manholes within the floodplain will be sealed and vented to above the regulatory
flood elevation. All new sanitary sewer lines will be buried.
F.8c. What source(s) did you use to make the floodplain determination?
The NC Floodplain Mapping Program website along with FEMA FIRM maps
(https://msc.fema.gpv/portal/search#searchre_sultsanchor), Davidson FIRM Panel 6777 and

Panel 6787, was used to determine what portions of the project are in the floodplain. The City
of Thomasville's Flood Damage Prevention Ordinance was also consulted.
Figure 8 shows the project alignment in relation to the floodplain areas along North Hamby
Creek.

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Soil Map—Davidson County, North Carolina
Map Unit Legend
Davidson County, North Carolina (NC057)
Map Unit Symbol Map Unit Name
Acres In AOI
Percent of AOI
ChA
Chewacla loam, 0 to 2 percent 8.9 24.1%
slopes, frequently flooded
EnB
Enon fine sandy loam, 2 to 8 3.5 9.5%
percent slopes
Enon-Urban land complex, 2 to 3.5 , 9.4%
EuB
8 percent slopes
PnD
Poindexter-Wynott complex, 8 0.5 1.2%
to 15 percent slopes
Sedgefield sandy loam, 2 to 8 0.3 0.8%
SfB
percent slopes
Ur
Urban land
20.3
55.0%
Totals for Area of Interest
37.0
100.0%
USDA Natural Resources Web Soil Survey 6/25/2015
�
Conservation Service National Cooperative Soil Survey Page 3 of 3

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2/17/2016 Davidson County Endangered Species, Threatened Species,Federal Species of Concern, and Candidate Species
FIGURE 6
Endangered Species, Threatened Species,Federai Species of
Concern, and Candidate Species,
Davidson County, North Carolina
Updated: 7-24-2015
Common Name
Vertebrate:
Bald eagle
Carolina darter
Eastern small -footed bat
Northern lona-eared ba!
Invertebrate:
Vascular Plant:
Georgia aster
Prairie birdsfoot-trefoil
Schweinitz's sunflower
Nonvascular Plant:
Lichen:
Scientific name
Haliaeetus leucocephalus
Etheostoma collis collis
Myotis leibii
Myotis septentrionalis
Symphyotrichum georgianum
Lotus unifoliolatus var. helleri
Helianthus schweinitzii
Federal Record Status
Status
BGPA Current
FSC Current
FSC
T
C
FSC
E
Current
Current
Current
Current
Current
Definitions of Federal Status Codes:
E = endangered. A taxon "in danger of extinction throughout all or a significant portion of its range."
T = threatened. A taxon "likely to become endangered within the foreseeable future throughout all or a
significant portion of its range."
C = candidate. A taxon under consideration for official listing for which there is sufficient information to
support listing. (Formerly "C 1 " candidate species.)
BGPA =Bald and Golden Eagle Protection Act. See below.
FSC=Federal Species of Concern. FSC is an informal term. It is not defined in the federal Endangered
Species Act. In North Carolina, the Asheville and Raleigh Field Offices of the US Fish and Wildlife
Service (Service) define Federal Species of Concern as those species that appear to be in decline or
otherwise in need of conservation and are under consideration for listing or for which there is insufficient
information to support listing at this time.Subsumed under the term "FSC" are all species petitioned by
hftp:/AAtww.fws.gov/raleigNspecies/cntylisttdavidson.htmi 1/2

2/17/2016 Davidson County Endangered Species, Threatened Species,Federal Species of Concern, and Candidate Species
outside parties and other selected focal species identified in Service strategic plans, State Wildlife Action
Plans, or Natural Heritage Program Lists.
T(S/A) = threatened due to similarity of appearance. A taxon that is threatened due to similarity of
appearance with another listed species and is listed for its protection. Taxa listed as T(S/A) are not
biologically endangered or threatened and are not subject to Section 7 consultation. See below.
EXP = experimental population. A taxon listed as experimental (either essential or nonessential).
Experimental, nonessential populations of endangered species (e.g., red wolf) are treated as threatened
species on public land, for consultation purposes, and as species proposed for listing on private land.
P = proposed. Taxa proposed for official listing as endangered or threatened will be noted as "PE" or
"PT", respectively.
Bold ani Golden Eagie, Protgetion Act BGPA):
In the July 9, 2007 Federal Register( 72:37346-37372), the bald eagle was declared recovered, and
removed (de -listed) from the Federal List of Threatened and Endangered wildlife. This delisting took
effect August 8,2007. After delisting, the Bald and Golden Eagle Protection Act (Eagle Act) (16 U.S.C.
668-668d) becomes the primary law protecting bald eagles. The Eagle Act prohibits take of bald and
golden eagles and provides a statutory definition of "take" that includes "disturb". The USFWS has
developed National Bald Eagle Management Guidelines to provide guidance to land managers,
landowners, and others as to how to avoid disturbing bald eagles. For mor information, visit
tt . .fw mi t i s ale 1 .htm
Threatened due to similarfty of a earanc S/A
In the November 4, 1997 Federal Register (55822-55825), the northern population of the bog turtle (from
New York south to Maryland) was listed as T (threatened), and the southern population (from Virginia
south to Georgia) was listed as T(S/A) (threatened due to similarity of appearance). The T(S/A)
designation bans the collection and interstate and international commercial trade of bog turtles from the
southern population. The T(S/A) designation has no effect on land management activities by private
landowners in North Carolina, part of the southern population of the species. In addition to its official
status as T(S/A), the U.S. Fish and Wildlife Service considers the southern population of the bog turtle as
a Federal species of concern due to habitat loss.
Definitions of Record Status:
Current - the species has been observed in the county within the last 50 years.
Historic - the species was last observed in the county more than 50 years ago.
Obscure - the date and/or location of observation is uncertain.
Incidental/migrant - the species was observed outside of its normal range or habitat.
Probable/potential - the species is considered likely to occur in this county based on the proximity of
known records (in adjacent counties), the presence of potentially suitable habitat, or both.
http://www.fws.gov/raleigtVspecies/cntylisttdavidson.html 2/2

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ATTACHMENT A
PRELIMINARY JURISDICTIONAL DETERMINATION FORM
BACKGROUND INFORMATION
A. REPORT COMPLETION DATE FOR PRELIMINARY JURISDICTIONAL
DETERMINATION (JD):
B. NAME AND ADDRESS OF PERSON REQUESTING PRELIMINARY JD:
Mr. Kelly Craver, City Manager, City of Thomasville, Davidson County, NC
10 Salem Street, Thomasville, NC 27361
C. DISTRICT OFFICE, FILE NAME, AND NUMBER:
D. PROJECT LOCATION(S) AND BACKGROUND INFORMATION:
See attached table for project locations and PCN Discussion Document for background information
(USE THE ATTACHED TABLE TO DOCUMENT MULTIPLE WATERBODIES AT DIFFERENT
SITES)
State: NC County/parish/borough: Davidson County City. Thomasville
Center coordinates of site (lat/long in degree decimal format):
Lat. See attached documents °N; Long. see attached documents °W
Universal Transverse Mercator:
Name of nearest waterbody: North Hamby Creek (High Rock Lake / Yadkin -Pee Dee Watershed)
Identify (estimate) amount of waters in the review area:
Non -wetland waters:
160 linear feet: 40 width (ft) and/or
Ciowardin Class: See Table
Stream Flow: Perennial
Wetlands: 0 acres.
Cowardin Class: N/A
acres.
Name of any water bodies on the site that have been identified as Section 10
waters:
Tidal: None
Non -Tidal: None
1

E. REVIEW PERFORMED FOR SITE EVALUATION (CHECK ALL
APPLY):
Office (Desk) Determination. Date:
❑ Field Determination. Date(s):
THAT
SUPPORTING DATA. Data reviewed for preliminary JD
(check all that apply - checked items should be included in case file and,
where checked and requested, appropriately reference sources below):
❑ Maps, plans, plots or plat submitted by or on behalf of the
applicant/consultant:
0 Data sheets prepared/submitted by or on behalf of the
app nt/consultant.
Office concurs with data sheets/delineation report.
Office does not concur with data sheets/delineation report.
0
Data sheets prepared by the Corps:
❑ Corps navigable waters' study:
❑ U.S. Geological Survey Hydrologic Atlas:
❑ USGS NHD data
® USGS 8 and 12 digit HUC maps
U.S. Geological Survey map(s). Cite scale & quad name: F.$h:nvl . Hip h Poi rA%yu C. F:g we
USDA Natural Resources Conservation Service Soil Survey.
Citation: USDA Web Soil Survey - Soil Map Davidson County, North Carolina - Figure 3
National wetlands Inventory map(s). Cite name. US Fish and Wildlife Service - Figure 4
❑ State/Local wetland inventory map(s):
91 FEMA/FIRM maps: Davidson County, N.C. FIRM 677 & FIRM 6787 - Figure 8
❑ 100 -year Floodplain Elevation is:
(NationalGeodectic Vertical Datum of 1929)
Photographs: E -- l Aerial (Name & Date): _ or
Other (Name & Date):
❑ Previous determination(s). File no. and date of response letter:
Other information (please specify):
2

1. The Corps of Engineers believes that there may be jurisdictional waters of the
United States on the subject site, and the permit applicant or other affected party
who requested this preliminary JD is hereby advised of his or her option to
request and obtain an approved jurisdictional determination (JD) for that site.
Nevertheless, the permit applicant or other person who requested this
preliminary JD has declined to exercise the option to obtain an approved JD in
this instance and at this time.
2. In any circumstance where a permit applicant obtains an individual permit, or
a Nationwide General Permit (NWP) or other general permit verification requiring
"pre -construction notification" (PCN), or requests verification for a non -reporting
NWP or other general permit, and the permit applicant has not requested an
approved JD for the activity, the permit applicant is hereby made aware of the
following: (1) the permit applicant has elected to seek a permit authorization
based on a preliminary JD, which does not make an official determination of
jurisdictional waters; (2) that the applicant has the option to request an approved
JD before accepting the terms and conditions of the permit authorization, and
that basing a permit authorization on an approved JD could possibly result in less
compensatory mitigation being required or different special conditions; (3) that
the applicant has the right to request an individual permit rather than accepting
the terms and conditions of the NWP or other general permit authorization; (4)
that the applicant can accept a permit authorization and thereby agree to comply
with all the terms and conditions of that permit, including whatever mitigation
requirements the Corps has determined to be necessary; (5) that undertaking
any activity in reliance upon the subject permit authorization without requesting
an approved JD constitutes the applicant's acceptance of the use of the
preliminary JD, but that either form of JD will be processed as soon as is
practicable; (6) accepting a permit authorization (e.g., signing a proffered
individual permit) or undertaking any activity in reliance on any form of Corps
permit authorization based on a preliminary JD constitutes agreement that all
wetlands and other water bodies on the site affected in any way by that activity
are jurisdictional waters of the United States, and precludes any challenge to
such jurisdiction in any administrative or judicial compliance or enforcement
action, or in any administrative appeal or in any Federal court; and (7) whether
the applicant elects to use either an approved JD or a preliminary JD, that JD
will be processed as soon as is practicable. Further, an approved JD, a proffered
individual permit (and all terms and conditions contained therein), or individual
permit denial can be administratively appealed pursuant to 33 C.F.R. Part 331,
and that in any administrative appeal, jurisdictional issues can be raised (see 33
C.F.R. 331.5(a)(2)). If, during that administrative appeal, it becomes necessary
to make an official determination whether CWA jurisdiction exists over a site, or
to provide an official delineation of jurisdictional waters on the site, the Corps will
provide an approved JD to accomplish that result, as soon as is practicable.

This preliminary JD finds that there "may be"waters of the United States on the
subject project site, and identifies all aquatic features on the site that could be
affected by the proposed activity, based on the following information:
IMPORTANT MOTE, The information recorded on this form has not
necessarily been verified by the Corps and should not be relied upon for
later jurisdictional determinations.
Signature and date of
Regulatory Project Manager
(REQUIRED)
4
kiglhaturPn date of
person r ueing preliminary JD
(REQUI ED, less obtaining
the signature is impracticable)

North Hamby Creek Outfall Phase II Sanitary Sewer Improvements — Sewerline Crossings
Crossing
Cowardin
Estimated amount
Class of aquatic
Latitude
Longitude
of aquatic resource
Number
!
Class
resource
!
in review area
1
� 35.874578
-80.089647
R -3 -UB -1
40 feet
Non -section 10
-non -tidal
2
35.875643
-80.087595
R -3 -UB -1
40 feet
Non -section 10
-non -tidal
3
35.880347
-80.076758
R -3 -UB -1
40 feet
Non -section 10
-non-tidal
4
35.883535
-80.072215
R -3 -UB -1
40 feet _
Non -section 10
-non-tidal

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Project Principal
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Project Manager
H. Miller, P.E.
Project Engineer
H. Miller, P.E.
Drawn By
J. Rodriguez
Date
02/15/16
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Y:\2150377 -N Hamby SS Phase II\CAD\nh2C105.dwg
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K. Garbrick, P.E.
Project Manager
H. Miller, P.E.
Project Engineer
H. Miller, P.E.
Drawn By
J. Rodriguez
Date
02/15/16
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