WQ0042780_Application (FTSE)_20210823

DAVIS • MARTIN • POWELL
ENGINEERS & SURRignA(iElt
Environmental
Received
August 19, 2021 AUG 2 3 2021
Re: City of Lexington, NC Winston-Salem
Twin Silos Subdivision Regional Office
Sewer System Improvements
Davidson County, NC
DMP Project 210096 (BF)
Mr. Mike Mickey
NCDEQ- Division of Water Quality
450 West Hanes Mill Road, Suite 300
Winston-Salem, North Carolina 27105
Dear Mr. Mickey:
On behalf of the City of Lexington and in regards to the referenced project we are enclosing the following
information for your review and approval:
• Two (2) executed Fast Track Application for Gravity Sewers, Pump Stations and Forcemains
• Two (2) copies of Flow Tracking/Acceptance Form
• Two (2) copies of color USGS quad map & Street Level map
• $480 review fee
The proposed project will involve the construction of a gravity sewer extension to serve a proposed eight
(8) lot residential subdivision. Treatment of the generated flows will be provided by City of Lexington at
the Lexington Regional WWTP (Permit # NC0055786).
We trust the enclosed information is complete and will allow for approval to be issued at an early date.
However, should you have any questions or require additional information, please contact our office.
Sincerely,
DAVIS • MARTIN • POWELL & ASSOCIATES, INC
mil- -
Ben Palmer, PE
C: Mr. Roger Jones, City of Lexington (enc)
Mr. Daniel Smith (enc)
File (enc)
P: i2021i210096\Permits\Sewer\210096-DWR Transmittal. docx
T: 336-886-4821 • F: 336-886-4458 • License: F-0245
6415 Old Plank Road, High Point, NC 27265 • www.dmp-inc.com

DWR
Division of Water Resources
State of North Carolina
Department of Environmental Quality
Division of Water Resources
FAST TRACK SEWER SYSTEM EXTENSION APPLICATION
FTA 06-21 & SUPPORTING DOCUMENTATION
Application Number:
(to be completed by DWR)
All items must be completed or the application will be returned
I. APPLICANT INFORMATION:
1.
2.
Applicant's name: City of Lexington, NC (company, municipality, HOA, utility, etc.)
Applicant type: ❑ Individual
❑ Corporation ❑ General Partnership
❑ Federal ❑ State/County ® Municipal
3. Signature authority's name: Roger Jones per 15A NCAC 02T .0106(b)
Title: Public Services Manager
4. Applicant's mailing address: 28 West Center Street
City: Lexington State: NC Zip: 27292-
5. Applicant's contact information:
Phone number: [phone] Email Address: [e-mail]
II. PROJECT INFORMATION:
1.
2.
Project name: Twin Silos Subdivision
Application/Project status:
® Proposed (New Permit)
If a modification, provide the existing permit number: W000
❑ Privately -Owned Public Utility
0 Other
❑ Existing Permit/Project
and issued date:
For modifications, also attach a detailed narrative description as described in Item G of the checklist.
If new construction, but part of a master plan, provide the existing permit number: W000
3. County where project is located: Davidson
4. Approximate Coordinates (Decimal Degrees): Latitude: 35.8375° Longitude: -80.2614°
5. Parcel ID (if applicable): (or Parcel ID to closest downstream sewer)
III. CONSULTANT INFORMATION:
1. Professional Engineer: Benjamin A. Palmer
Firm: Davis -Martin -Powell & Associates
Mailing address: 6415 Old Plank Road
City: High Point State: NC Zip: 27265-
Phone number: [phone] Email Address: [e-mail]
IV. WASTEWATER TREATMENT FACILITY (WWTF) INFORMATION:
1. Facility Name: Lexington Regional WWTP
Owner Name: City of Lexington
License Number: 25496
Permit Number: NC0055786
V. RECEIVING DOWNSTREAM SEWER INFORMATION:
1. Permit Number(s): WQ
2. Downstream (Receiving) Sewer Information: 8 inch ® Gravity
3. System Wide Collection System Permit Number(s) (if applicable): WQCS
Owner Name(s): City of Lexington
FORM: FTA 06-21
❑ Force Main
Page 1 of 5

VI. GENERAL REQUIREMENTS
1. If the Applicant is a Privately -Owned Public Utility, has a Certificate of Public Convenience and Necessity been attached?
❑ Yes ❑ No Z N/A
2. If the Applicant is a Developer of lots to be sold, has a Developer's Operational Agreement (FORM: DEV) been attached?
❑ Yes ❑ No Z N/A
3. If the Applicant is a Home/Property Owners' Association, has an HOA/POA Operational Agreement (FORM: HOA) and
supplementary documentation as required by 15A NCAC 02T.0115(c) been attached?
❑ Yes ❑ No ®N/A
4. Origin of wastewater: (check all that apply):
® Residential (Individually Owned) ❑ Retail (stores, centers, malls)
❑ Residential (Leased) ❑ Retail with food preparation/service
❑ School / preschool / day care ❑ Medical / dental / veterinary facilities
❑ Food and drink facilities ❑ Church
❑ Businesses / offices / factories ❑ Nursing Home
❑ Car Wash
❑ Hotel and/or Motels
❑ Swimming Pool/Clubhouse
❑ Swimming Pool/Filter Backwash
❑ Other (Explain in Attachment)
5. Nature of wastewater : 100 % Domestic % Commercial % Industrial See 15A NCAC 02T .0103(20))
If Industrial, is there a Pretreatment Program in effect? ❑ Yes ❑ No
6. Has a flow reduction been approved under 15A NCAC 02T .0114(f)? ❑ Yes ❑ No
➢ If ves, provide a copy of flow reduction approval letter with this application
7. Summarize wastewater generated by project:
Establishment Type (see 02T.0114(0)
Daily Design Flow a,"
No. of Units
Flow
Single Family Residential
360 gal/day
8
2,880 GPD
gal/
GPD
gal/
GPD
gal/
GPD
gal/
GPD
gal/
GPD
Total
2,880 GPD
a See 15A NCAC 02T .0114(b), (d), (e)(1) and (e)(2) for caveats to wastewater design flow rates (i.e., minimum flow per
dwelling; proposed unknown non-residential development uses; public access facili ies located near high public use areas;
and residential property located south or east of the Atlantic Intracoastal Waterway to be used as vacation rentals as defined
in G.S. 42A-4).
b Per 15A NCAC 02T .0114(c), design flow rates for establishments not identified [in table 15A NCAC 02T.0114] shall be
determined using available flow data, water using fixtures, occupancy or operation pattems, and other measured data.
8. Wastewater generated by project: 2,880 GPD (per 15A NCAC 02T .0114)
➢ Do not include future flows or previously permitted allocations
If permitted flow is zero, please indicate why:
❑ Pump Station/Force Main or Gravity Sewer where flow will be permitted in subsequent permits that connect to this line.
Please provide supplementary information indicating the approximate timeframe for permitting upstream sewers with flow.
❑ Flow has already been allocated in Permit Number: Issuance Date:
❑ Rehabilitation or replacement of existing sewers with no new flow expected
❑ Other (Explain):
FORM: FTA 06-21
Page 2 of 5

VII. GRAVITY SEWER DESIGN CRITERIA (If Applicable) - 02T .0305 & MDC (Gravity Sewers):
1. Summarize gravity sewer to be permitted:
Size (inches)
Length (feet)
Material
8
521
PVC
8
49
DIP
> Section II & III of the MDC for Permitting of Gravity Sewers contains information related to design criteria
➢ Section III contains information related to minimum slopes for gravity sewer(s)
➢ Oversizing lines to meet minimum slope requirements is not allowed and a violation of the MDC
VIII. PUMP STATION DESIGN CRITERIA (If Applicable) — 02T .0305 & MDC (Pump Stations/Force Mains):
PROVIDE A SEPARATE COPY OF THIS PAGE FOR EACH PUMP STATION INCLUDED IN THIS PROJECT
1. Pump station number or name:
2. Approximate Coordinates (Decimal Degrees): Latitude: 0Longitude: -
3. Total number of pumps at the pump station:
3. Design flow of the pump station: _ millions gallons per day (firm capacity)
> This should reflect the total GPM for the pump station with the largest pump out of service.
4. Operational point(s) per pump(s): gallons per minute (GPM) at feet total dynamic head (TDH)
5. Summarize the force main to be permitted (for this Pump Station):
Size (inches)
Length (feet)
Material
If any portion of the force main is less than 4-inches in diameter, please identify the method of solids reduction per
MDCPSFM Section 2.01C.1.b. 0 Grinder Pump ❑ Mechanical Bar Screen ❑ Other (please specify)
6. Power reliability in accordance with 15A NCAC 02T .0305(h)(1):
❑ Standby power source or 0 Standby pump
➢ Must have automatic activation and telemetry - 15A NCAC 02T.0305(h)(1)(B)I
> Required for all pump stations with an average daily flow greater than or equal to 15,000 gallons per day
> Must be permanent to facility and may not be portable
Or if the pump station has an average daily flow less than 15,000 gallons per day 15A NCACO2T.0305(h)(1)(C):
0 Portable power source with manual activation, quick -connection receptacle and telemetry -
or
❑ Portable pumping unit with plugged emergency pump connection and telemetry:
> Include documentation that the portable source is owned or contracted by the applicant and is compatible with the station.
> If the portable power source or pump is dedicated to multiple pump stations, an evaluation of all the pump stations' storage
capacities and the rotation schedule of the portable power source or pump, including travel timeframes, shall be provided
as part of this permit application in the case of a multiple station power outage.
FORM: FTA 06-21 Page 3 of 5

IX. SETBACKS & SEPARATIONS — (02B .0200 & 15A NCAC 02T .0305(f)):
1. Does the project comply with all separations/alternatives found in 15A NCAC 02T .0305(f) & (a)?
15A NCAC 02T.0305(f) contains minimum separations that shall be provided for sewer systems:
® Yes ❑ No
Setback Parameter*
Separation Required
Storm sewers and other utilities not listed below (vertical)
18 inches
2Water mains (vertical - water over sewer preferred, including in benched trenches)
18 inches
2Water mains (horizontal)
10 feet
Reclaimed water lines (vertical - reclaimed over sewer)
18 inches
Reclaimed water lines (horizontal - reclaimed over sewer)
2 feet
**Any private or public water supply source, including any wells, WS-I waters of Class I or
Class II impounded reservoirs used as a source of drinking water, and associated wetlands.
100 feet
**Waters classified WS (except WS-I or WS-V), B, SA, ORW, HQW, or SB from normal
high water (or tide elevation) and wetlands associated with these waters (see item IX.2)
50 feet
**Any other stream, lake, impoundment, or ground water lowering and surface drainage
ditches, as well as wetlands associated with these waters or classified as WL.
10 feet
Any building foundation (horizontal)
5 feet
Any basement (horizontal)
10 feet
Top slope of embankment or cuts of 2 feet or more vertical height
10 feet
Drainage systems and interceptor drains
5 feet
Any swimming pools.
10 feet
Final earth grade (vertical)
36 inches
> If noncompliance with 02T.0305(f) or (a) see Section X.1 of this application
*15A NCAC 02T.0305(g) contains alternatives where separations in 02T.0305(f) cannot be achieved. Please check "yes"
above if these alternatives are used and provide narrative information to explain.
**Stream classifications can be identified using the Division's NC Surface Water Classifications webpage
2. Does this project comply with the minimum separation requirements for water mains? Z Yes ❑ No ❑ N/A
> If no, please refer to 15A NCAC 18C.0906(f) for documentation requirements and submit a separate document,
signed/sealed by an NC licensed PE, verifying the criteria outlined in that Rule.
3. Does the project comply with separation requirements for wetlands? ❑ Yes ❑ No ® N/A
> Please provide supplementary information identifying the areas of non-conformance.
> See the Division's draft separation requirements for situations where separation cannot be met.
> No variance is required if the alternative design criteria specified is utilized in design and construction.
4. Is the project located in a river basin subject to any State buffer rules? ❑ Yes Basin name: ® No
If yes, does the project comply with setbacks found in the river basin rules per 15A NCAC 02B .0200? ❑ Yes ❑ No
> This includes Trout Buffered Streams per 15A NCAC 2B.0202
5. Does the project require coverage/authorization under a 404 Nationwide/individual permits ❑ Yes Z No
or 401 Water Quality Certifications?
> Please provide the permit number/permitting status in the cover letter if coverage/authorization is required.
6. Does project comply with 15A NCAC 02T.0105(c)(6) (additional permits/certifications)? ® Yes ❑ No
Per 15A NCAC 02T.0105(c)(6), directly related environmental permits or certification applications must be being prepared,
have been applied for, or have been obtained. Issuance of this permit is contingent on issuance of dependent permits (erosion
and sedimentation control plans, stormwater management plans, etc.).
7. Does this project include any sewer collection lines that are deemed "high -priority?" ❑ Yes ® No
Per 15A NCAC 02T.0402, "high -priority sewer" means any aerial sewer, sewer contacting surface waters,
siphon, or sewers positioned parallel to streambanks that are subject to erosion that undermines or deteriorates the sewer.
Siphons and sewers suspended through interference/conflict boxes require a variance approval.
> If yes, include an attachment with details for each line, including type (aerial line, size, material, and location).
High priority lines shall be inspected by the permittee or its representative at least once every six -months and
inspections documented per 15A NCAC 02T.0403(a)(5) or the permittee's individual System -Wide Collection permit.
FORM: FTA 06-21 Page 4 of 5

X. CERTIFICATIONS:
I . Does the submitted system comply with 15A NCAC 02T, the Minimum Design Criteria for the Permitting of Pump Stations
and Force Mains (latest version) and the Gravity Sewer Minimum Design Criteria (latest version) as applicable?
® Yes ❑ No
If no, for projects requiring a single variance, complete and submit the Variance/Alternative Design Request application
(VADC 10-14) and supporting documents for review to the Central Office. Approval of the request will be issued
concurrently with the approval of the permit, and projects requiring a variance approval may be subject to longer
review times. For proiects requiring two or more variances or where the variance is determined by the Division to be a
significant portion of the project, the full technical review is required.
2. Professional Engineer's Certification:
I, YDDIatkfAxli A . 1�' ,wtet- , attest that this application for 1 vJs.X St'.cYS' S.A.wveyrs.03,
(Professional Engineer's name from Application Item 1I1.1.) (Project Name from Application Item 11.1)
has been reviewed by me and is accurate, complete and consistent with the information supplied in the plans,
specifications, engineering calculations, and all other supporting documentation to the best of my knowledge. I further
attest that to the best of my knowledge the proposed design has been prepared in accordance with the applicable regulations,
Minimum Design Criteria for Gravity Sewers (latest version), and the Minimum Design Criteria for the Fast -Track Permitting
of Pump Stations and Force Mains (latest version). Although other professionals may have developed certain portions of this
submittal package, inclusion of these materials under my signature and seal signifies that I have reviewed this material and
have judged it to be consistent with the proposed design.
NOTE — In accordance with General Statutes 143-215.6A and 143-215.6B, any person who knowingly makes any false
statement, representation, or certification in any application package shall be guilty of a Class 2 misdemeanor, which may
include a fine not to exceed $10,000, as well as civil penalties up to $25,000 per violation. Misrepresentation of the application
information, including failure to disclose any design non-compliance with the applicable Rules and design criteria, may subject
the North Carolina -licensed Professional Engineer to referral to the licensing board. (21 NCAC 56.0701)
North Carolina Professional Engineer's seal, signature, and date:
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3. Applicant's Certification per 15A NCAC 02T .0106(b):
I, Roger Jones , attest that this application for Twin Silos Subdivision
(Signature Authority Name from Application Item 1.3.) (Project Name from Application Item 11.1)
attest that this application has been reviewed by me and is accurate and complete to the best of my knowledge.
I understand that if all required parts of this application are not completed and that if all required supporting documentation
and attachments are not included, this application package is subject to being returned as incomplete. I understand that any
discharge of wastewater from this non -discharge system to surface waters or the land will result in an immediate enforcement
action that may include civil penalties, injunctive relief, and/or criminal prosecution. I will make no claim against the Division
of Water Resources should a condition of this permit be violated. I also understand that if all required parts of this application
package are not completed and that if all required supporting information and attachments are not included, this application
package will be returned to me as incomplete.
NOTE — In accordance with General Statutes I43-215.6A and I43-215.6B, any person who knowingly makes any false
statement, representation, or certification in any application package shall be guilty of a Class 2 misdemeanor, which may
include a fine not to exceed $10,000 as well as civil penalties up to $25,000 per violation.
Digitally signed by RogerJones
ND Roger Jones ou=wacnter Resources, diyof Lexington,
ou=Water Resources,
emall=[e-mail], c=US
Signature: Date: 2021.08.0215:43:53-04'00' Date: 8/2/2021
FORM: FTA 06-21 Page 5 of 5

Division of Water Resources
State of North Carolina
Department of Environmental Quality
Division of Water Resources
Flow Tracking for Sewer Extension Applications
(FTSE 10-18)
Entity Requesting Allocation: City of Lexington
Project Name for which flow is being requested: Twin Silos Subdivision
More than one FTSE may be required for a single project if the owner of the WWTP is not responsible for all pump
stations along the route of the proposed wastewater flow.
I. Complete this section only if you are the owner of the wastewater treatment plant.
a. WWTP Facility Name: Lexington Regional WWTP
b. WWTP Facility Permit #: NC0055786
c. WWTP facility's permitted flow
All flows are in MGD
6.5
d. Estimated obligated flow not yet tributary to the WWTP .1611
e. WWTP facility's actual avg. flow 2.8
f. Total flow for this specific request 0.00288
g. Total actual and obligated flows to the facility 2.964
h. Percent of permitted flow used 45.6
II. Complete this section for each pump station you are responsible for along the route of this proposed
wastewater flow.
List pump stations located between the project connection point and the WWTP:
Pump Pump
Station Station
(Name or Permit
Number) No.
Swearing
r _ > CREEK
(Brown
c.\ 5'f
Firm
Capacity, *
MGD
(A)
Design
Average
Daily Flow**
(Firm / pf),
MGD
5.91 2.36
(B) (C) (D)=(B+C) (E)=(A-D)
Obligated,
Approx. Not Yet Total Current
Current Tributary Flow Plus
Avg. Daily Daily Flow, Obligated Available
Flow, MGD MGD Flow Capacity***
1.8 .164 1.964 .396
* The Firm Capacity (design flow) of any pump station is defined as the maximum pumped flow
that can be achieved with the largest pump taken out of service.
** Design Average Daily Flow is the firm capacity of the pump station divided by a peaking factor
(pf) not less than 2.5, per Section 2.02(A)(4)(c) of the Minimum Design Criteria.
*** A Planning Assessment Addendum shall be attached for each pump station located
between the project connection point and the WWTP where the Available Capacity is < 0.
Downstream Facility Name (Sewer):
Downstream Permit Number:
Page 1 of 6
FTSE 10-18

III. Certification Statement:
I Roger Jones certify to the best of my knowledge that the addition of
the volume of wastewater to be permitted in this project has been evaluated along the route to the receiving
wastewater treatment facility and that the flow from this project is not anticipated to cause any capacity
related sanitary sewer overflows or overburden any downstream pump station en route to the receiving
treatment plant under normal circumstances, given the implementation of the planned improvements
identified in the planning assessment where applicable. This analysis has been performed in accordance
with local established policies and procedures using the best available data. This certification applies to
those items listed above in Sections I and II plus all attached planning assessment addendums for which I
am the responsible party. Signature of this form certifies that the receiving collection system or treatment
works has adequate capacity to transport and treat the proposed new wastewater.
Digitally signed by Roger Jones
Roger Jones n s DN: cn=Roger Jones, o=City of Lexington, ou=Water
C Resources,email=[e-mail], c=US
Date: 2021.08.02 16:09:14 -04'00'
8/2/2021
Signing Official Signature Date
Public Services Manager
Title of Signing Official
Page 2 of 6
FTSE 10-18

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