NCG551795_Permit (Issuance)_20230323

DocuSign Envelope ID: 42F7C7FE-6E59-444A-96EC-6A626D410002
ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR.
Director
S.E. Eskridge, Jr.
424 Yadkin Run Lane
P.O. Box 1834
Southern Pines, NC; 28387
Dear Mr. Eskridge:
NORTH CAROLINA
Environmental Quality
3/23/2023
Subject: Issuance of Certificate of Coverage (COC) /
Authorization to Construct (ATC)
NPDES General Permit NCG551795
under General Permit NCG550000
Single Family Residence (SFR)
5312 Farrington Road, Chapel Hill
Durham County
In accordance with your application for discharge under the subject NPDES General Permit, the Division
of Water Resources (DWR) herewith forwards a Certificate of Coverage (COC) and Authorization to
Construct (ATC) permit for upgraded facilities. This permit is issued pursuant to the requirements of
North Carolina General Statue 143-215 .1 and the Memorandum of Agreement between North Carolina
and the US Environmental Protection Agency (EPA) dated October 15, 2007 (or as subsequently
amended).
Your permit package includes:
• Certificate of Coverage (COC) /Authorization to Construct (ATC)
• A copy of the approved plans and specifications (signed 03/10/2023).
• Engineer's Certification form (to be returned to DWR upon project completion).
• A copy of Wastewater Discharge General Permit NCG550000
To maintain your COC, you must remit an annual fee of $60, due each year on the date of this letter,
to the Division of Water Resources. Please include the COC number NCG551795 on your check. Mail
your Annual Fee to:
NCDEQ / DWR / NPDES / SFR Permitting
Atm. Wren Thedford
1617 Mail Service Center
Raleigh, NC 27699-1617
DWR understands that the subject property has been judged "unsuitable" for a ground -absorption sewer
system by the Durham County Health Department. Therefore, your authorized consultant, Agri -Waste
Technologies, Inc. (AWT, Inc.) intends to upgrade/install a wastewater treatment system designed to
discharge to Surface Waters of the State in accordance with plans and specifications signed by the
engineer on 03/10/2023. Compliance under General Permit NCG550000 restricts discharge flow, not to
DEQ� North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1617 Mail Service Center I Raleigh, North Carolina 27699-1617
zl�,
NOP.T1 CAFOLM �
o.P.w�nm��.nantilu�ar� /'� 919.707.9000

DocuSign Envelope ID: 42F7C7FE-6E59-444A-96EC-6A626D410002 Page 2 of 5
5312 Farrington Road
NPDES General Permit COC NC551795
exceed 1,000 gallons per day. This ATC covers treatment facilities for a three (3)-bedroom single-famil
residence estimated to discharge 360 gpd (120 gallons per bedroom).
Please note that you must provide regular treatment -system operation, maintenance and inspections in
accord with manufacturer's recommendations, this ATC; and the General Permit. All records, water
analyses, and logs are to be kept onsite available for DWR inspection [NCG550000, Section A. (2.)].
Operation and Maintenance. The Permittee is responsible to maintain all components of the
approved treatment system, designed to meet Surface Water -Quality Standards. Compliance includes
following the manufacturer's guidelines, conducting and documenting inspections, establishing sources
for OEM spare parts and supplies, taking samples for analyses, making necessary repairs, and
documenting said maintenance for the duration of the permit. Please note that the receiving stream is
currently classified and governed as WS-IV; NSW (Water Supply IV; Nutrient Sensitive Waters).
If DWR determines that your discharge contributes to future degradation or impairment of this
waterbody, an individual NPDES permit may be mandatory. Upon DWR's request, the Permittee must
provide records and demonstrate regular efforts to maintain the approved treatment system. The
Division recommends that the Permittee solicit manufacture -certified training, or a qualified contractor
or service to regularly inspect and maintain this treatment system.
Authorization to Construct (ATC) Permit. This ATC details the conditions of installation and
operation. Before startup, activation requires notice to the Raleigh Regional Office (919-791-4200),
attention Scott Vinson, a minimum of three (3) days in advance of discharge. Such notification shall be
made during normal office hours from 8:00 a.m. until 5:00 p.m. Monday through Friday, excluding State
holidays. The attached Engineer's Certification form, must be returned to DWR by the Engineer,
documenting compliance "as built" in accord with this ATC and approved plans and specifications
submitted to DWR and signed on March 10, 2023. No changes may be made without prior approval.
Therefore, in accord with the application and the attached approved plans and specifications, DWR
hereby authorizes the installation of upgrades to the existing treatment system described as:
• 1,250 Gallon Septic Tank with Effluent Filter and Access Risers
• AdvantTex AX20-RT Treatment Pod with Re -circulating Chamber
• UV Disinfection System
0 Control Panel with Alarm
• Discharge Outlet with Riprap
• All Piping and Appurtenances
Compliance with the above shall include a leakage test performed on reused tanks and proposed new
tanks, or leak -certified new by the manufacture not to exceed an exfiltration rate of twenty (20) gallons
per twenty-four (24) hours per 1,000 gallons of tank capacity. The Engineer's Certification shall serve as
proof of compliance with this condition. Mail the completed Engineer's Certification to:
DEQ / DWR/ NPDES Program
1617 Mail Service Center
Raleigh, NC 27699-1617
❖ The Permittee shall, for the life of the treatment facility, maintain on site a copy
of the approved plans and specifications available for DWR inspection.
All elbow piping must conform to the long -sweeping type. All cleanouts must be housed in meter boxes
below grade. This treatment system shall be located at least 15 feet away from a dwelling, at least 100

DocuSign Envelope ID: 42F7C7FE-6E59-444A-96EC-6A626D410002 Page 3 of 5
5312 Farrington Road
NPDES General Permit COC NC551795
feet from any water -supply well either on- or off -site. The system shall also be located and constructed
above any applicable 100-year flood line; 50-ft setback from property lines.
Upon completing construction and prior to operating this permitted facility, a North Carolina -
registered engineer shall sign and submit to DWR the attached Engineer's Certification form, thereby
certifying that the permitted facility has been installed in accordance with the NPDES Permit, this COC,
this ATC, and the approved plans and specifications.
This ATC permit is issued in accordance with Part III, Paragraph 2 of NPDES General Permit
NCG550000, and is subject to revocation unless wastewater treatment facilities are constructed in
accordance with the conditions and limitations specified in this General Permit. In the event that the
facilities fail to perform satisfactorily, including creating nuisance conditions, the Permittee shall take
immediate corrective action as may be required by this Division, such as the construction of additional or
replacement wastewater treatment(s) or disposal facilities. Failure to abide by the requirements of this
ATC permit may subject the Permittee to an enforcement action by the Division of Water Resources in
accordance with North Carolina General Statute 143-215.6A to 143-215.6C.
If any parts, measurement frequencies or sampling requirements contained in this general permit are
unacceptable to you, you have the right to request an individual permit by submitting an individual permit
application. Unless such demand is made, the COC shall be final and binding.
This COC is not transferable except after notice to the Division of Water Resources. The Division may
modify or revoke and reissue this COC. This COC does not affect your legal obligation to obtain other
permits that may be required by the Division of Water Resources, the Division of Energy, Mineral and
Land Resources, the Coastal Area Management Act, or any other Federal, State or Local government.
NPDES Contact. If you have any questions concerning the requirements of this Certificate of Coverage
or Authorization to Construct permit, please contact Bradley Bennett at bradlgy.bennettkncdenr. og_v or
[phone].
Sincerely,
DocuSigned by:
8328B44CE9EB4A1...
Richard E. Rogers, Jr.
Director, Division of Water Resources
Attachments: COC; Plans, Engineer's Certification form (to be signed and returned to DWR), Copy of
GP NCG550000
cc: Raleigh Regional Office — Laserfiche
NPDES General Permit Files — Laserfiche
Kevin Davidson — AWT, Inc. - electronic

DocuSign Envelope ID: 42F7C7FE-6E59-444A-96EC-6A626D410002 Page 4 of 5
5312 Farrington Road
NPDES General Permit COC NC551795
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
CERTIFICATE OF COVERAGE - NCG551795
Under GENERAL PERMIT NCG550000
TO DISCHARGE 100%-DOMESTIC AND SIMILAR WASTEWATERS
UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
(NEDES)
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended,
E.S. Eskridge Jr.
is hereby authorized to operate a wastewater treatment facility consisting of a septic tank with effluent
filter, AdvanTex AX-20 RT Pod system with re -circulating chamber, UV disinfection, control panel with
alarm, discharge point with riprap; discharging from facilities located at the
Single -Family Residence (SFR)
5312 Farrington Road, Chapel Hill, NC
Durham County
to receiving waters designated as UT to Little Creek [Stream Index: 16-41-1-15-(0.5)] a waterbody
currently classified WS-IV; NSW located within sub -basin 03-06-06 [HUC: 030300020603] of the Cape
Fear River Basin, in accordance with the effluent limitations, monitoring requirements, and other conditions
set forth in Parts I, II, III and IV of General Permit NCG550000 as attached.
This Certificate of Coverage and Authorization to Construct shall become effective April 1, 2023
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signedthisday March 23, 2023 DocuSigned by:
18328B44CE9EB4A1 ..
Richard E. Rogers, Jr.
Director, Division of Water Resources
By Authority of the Environmental Management Commission

DocuSign Envelope ID: 42F7C7FE-6E59-444A-96EC-6A626D410002
Discharge
Eskridge Property
E.S. Eskridge, Jr.
Facility
5312 Farrington Road, Chapel Hill,
NC
`4
Location
Receiving Stream: UT to Little Creek Stream Class:
WS-IV; NSW
(not to scale)
River Basin: Cape Fear Sub -Basin:
03-06-06
Latitude: 35' 55' 18.3" Longitude:
78' 59' 32.2"
Stream Segment 16-41-1-15-(0.5) HUC#:
030300020603
NORTH
NPDES Permit NCG551795
uad: Southwest Durham County:
Durham

DocuSign Envelope ID: 42F7C7FE-6E59-444A-96EC-6A626D410002
&M
Engineers and Soil Scientists
Agri -Waste Technology, Inc.
501 N. Salem Street, Suite 203
Apex, North Carolina 27502
919-859-0669
www.agriwaste.com
Date:
FINAL DESIGN
NOT RELEASED FOR
CONSTRUCTION
RECEIVED
March 10, 2023
NCDEQ/DWR/NPDES
5312 Farrington Road
Chapel Hill, NC 27514
Durham County
Plans and Specifications for Discharge System
Design Engineer:
March 10, 2023
Kevin Davidson, P.E.
Agri -Waste Technology, Inc.
501 N. Salem Street, Suite 203
Apex, NC 27502
Office: 919-859-0669
Direct: 919-367-6310
Email: kdavidsonkagriwaste.com
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DocuSign Envelope ID: 42F7C7FE-6E59-444A-96EC-6A626D410002
Narrative Description
of
Discharge Treatment System
The Discharge System that has been designed considers the following components:
- Septic Tank
- AdvanTex AX20-RT Treatment Pod
- UV Disinfection
- Discharge Outlet
- Control Panel
Due to the advanced technology in this system, a Certified Operator should be contracted to
maintain this system.
Septic Tank
A new 1,250-gallon septic tank will be installed for this system. The existing 1,000-gallon tank will
be abandoned in place. An Orenco 8" Biotube effluent filter will be installed in the outlet end of the
septic tank. 24" access risers will be installed on both the inlet and outlet ends of the septic tank.
All wastewater from the single-family residence, including greywater, will be routed into the septic
tank. Waste that exits the septic tank will flow via gravity into the AdvanTex AX20-RT Treatment
Pod.
AdvanTex AX20-RT Treatment Pod
The treatment component of the system is an AdvanTex AX20-RT treatment pod. The pod is an
integrated unit that combines recirculation, treatment, and discharge modules into a single, sealed
unit. Liquid from the septic tank will flow via gravity to the inlet of the treatment pod and into the
recirculation tank portion of the AX-RT unit. Liquid from the recirculation tank will be periodically
applied across the filter fabric. Wastewater will be sprayed over the textile sheets. The wastewater
percolates down through the textile sheets and is distributed between the recirculation chamber and
discharge chamber by means of the tank baffle. The treated wastewater then exits the AX-RT unit
via gravity to the discharge outlet after passing through the UV disinfection system within the AX-
RT unit.
The recirculation pump is controlled by a system of 3 floats that operate the recirculation pump in a
Timed Dose arrangement. Float I (lowest elevation) is a redundant off float. Float 2 is a Peak
Enable Float and Float 3 acts as a High Water Alarm. Under normal operation, the redundant off
float will be engaged thereby activating the timer in the control panel. At the pre-set interval, the
pump will engage and distribute effluent over the textile fabric ("on" cycle). Following this period,
the pump will turn off and rest for a designated time ("off' cycle)". During periods of high water in
the recirculation portion of the tank, the Peak Enable float will engage and reduce the pre-set "off'
time and thereby send increased flow across the fabric. If the water level in the recirculation tank
continues to rise, the High Water Alarm will activate.
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DocuSign Envelope ID: 42F7C7FE-6E59-444A-96EC-6A626D410002
To prevent groundwater from affecting the pod, the pod will be installed on a bed of gravel. Anti -
flotation measures or a concrete ring installed around the mid -flange will be installed to provide
extra ballast to prevent the flotation of the pod during high water table conditions.
UV Disinfection
Disinfection for the system will be accomplished using a UV system. The UV light should operate
for approximately one year prior to needing to be replaced. If the UV light burns out or loses
sufficient intensity (below a set threshold) an alarm will activate and disable the system pump. An
alarm light on the control panel will also illuminate. When the alarm is activated, the homeowner
should reduce water use (laundry, dishes, washing) until the system is operating properly.
Discharge Outlet
The system discharges into a culvert located on the property. Riprap will be placed at the discharge
location to provide aeration of the water as it is discharged and also as erosion protection.
Vegetation and debris should be kept clear of the discharge location. A grate will be installed on the
discharge pipe to prevent animals and rodents from entering the discharge pipe.
Control Panel
One control panel will be installed with this wastewater system. This panel will control operation of
the pumps and UV system. If desired, this panel can be connected to a land -based phone line that
will notify the operator of system operation.
4of61

DocuSign Envelope ID: 42F7C7FE-6E59-444A-96EC-6A626D410002
dkridae Residence surface Discharae
Project Location: 5312 Farrington Road
Chapel Hill, NC 27514
Durham County
PIN# 0709-20-13-8735
Project Owner: E. S.m Eskridge
424 Yadkin Run Lane
Southern Pines, NC 28387
[phone]
[e-mail]
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1
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_~Cirlp F{Ilf p� 1
SITE
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VICINITY MAP
Project Consultant: Kevin D. Davidson, P.E.
[e-mail]
Agri —Waste Technology, Inc. Sheet Index
501 N. Salem Street, Suite 203
Sheet 1 Cover Sheet
Apex, NC 27502
Sheet 2 Property Layout
[phone]
Sheet 3 Component Layout
[phone] Fax
Sheet 4 System Detail #1
Sheet 5 System Detail #2
System Overview: Single Family Residence
Three (3) Bedroom, 360 gpd
Design Standard — Discharge
AdvanTex AX-20 RT Pod
with Single Bulb UV Disinfection
AVVr
Engineers and Soil Scientists
Agri -waste Technology, Inc.
501 N. Salem Street, Suite 203
Apex, North Carolina 27502
919-859-0669
www.agriwaste.com
Eskridge Surface Discharge
Wastewater Treatment System
Owner Information:
E. S. Eskridge
424 Yadkin Run Lane
P.O. Box 1834
Southern Pines, NC 28387
[phone]
stan04unc.com
Property Information:
5312 Farri1on Road
Chapel Hill, ryC 27514
Durham County
PIN# 0709-20-13-8735
SEAL I
FINAL DESIGN
NOT RELEASED FOR CONSTRUCTION
REV. ISSUED DAIS DESCRIPTION
SHEET TITLE
Cover Sheet
DRAWN BY:
CREATED ON:
A. HUDSON
03/02/2023
REVISED BY:
REVISED ON:
RELEASED BY:
RELEASED ON:
10 of 61

DocuSign Envelope ID: 42F7C7FE-6E59-444A-96EC-6A626D410002
5315,GEORGE KIN \
/ ROAD
LLC
D.B. 9572-77-773
i
ANITA H HICKS-h
D.B. 5210-266 '�'
i
NOTES:
- Adjust tanks to meet site constraints.
- Control Panel to be within 15'-18' of the UV
system. Can be mounted near the house.
PROPERTY LAYOUT
JAMES G KING
JUNE PIERCE KING
D.B, 384-210
IIN
POWERLINE
EASEMENT
JEROME SOLOMON
SHONGYAN WANG
LIWEN ZHONG
D.B. 7540-156
0 100 200
7771 Feet
AM/r
Engineers and Soil Scientists
Agri -Waste Technology, Inc.
501 N. Salem Street, Suite 203
Apex, North Carolina 27502
919-859-0669
www.agriwaste.com
Eskridge Surface Discharge
Wosteylater Treatment System
Omer Information:
E. S. Eskridge
424 Yodkin Run Lone
P.O. Box 1834
Southern Pines, NC 28387
[phone]
slano4unc.com
Property Information:
5312 Farrington Rood
Chapel Hill, MC 27514
Durham County
PIN# 0709-20-13-8735
PROFESSIONAL ENGINEER SEAL
FINAL DESIGN
NOT RELEASED FOR CONSTRUCTION
REY, ISSUED DATE DESCRIPTION
SHEET TITLE
Property Layout
DRA N BY: CREATED ON:
HUDSON 03/02/2023
REVISED BY: REVISED ON:
RELEASED BY: RELEASED ON:
DRAWING NU BER
WW-2
11 of 61

DocuSign Envelope ID: 42F7C7FE-6E59-444A-96EC-6A626D410002
ST
A
� O I
Uv
� AX20-RTO
�sora`ge
/ �o�
COMPONENT LAYOUT
/
/
J
0
LL1
DL
-To_H_ou_se
0 5 10
Feet
T
Lys \�� chap
\ T 9P
1
Op
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0 5 10
Feet \
n DISCHARGE POINT
W W-3
Line Legend
Line Name Size Type
DL Drain Line 4.0" SCH 40 PVC
EDL Effluent Discharge Line 4.0" SCH 40 PVC
ERL Effluent Return Line 1.0" SCH 40 PVC
NOTES:
- Adjust tanks to meet site constraints.
- Grade surface in tank area as needed to maintain required slope on pipes.
- Effluent discharge line (EDL) to maintain minimum 18" burial depth.
- Ball valve on effluent return line may be inside RT Unit or ST inlet riser.
- Properly abandon existing septic tank and treatment system.
- Adjust outlet location of all gutters/downspouts as needed to shed runoff away
from treatment system.
COMPONENT LEGEND
ST Septic Tank CP Control Panel
RT Recirculation Tank LIV LIV Disinfection
A AdvanTex Pod P Pump
SIB Splice Box EF Effluent Filter
IT Inlet Tee BV Ball Valve
Avvr
Engineers and Soil Scientists
Agri -Waste Technology, Inc.
501 N. Salem Street, Suite 203
Apex, North Carolina 27502
919-859-0669
www.agriwaste.com
Eskridge Surface Discharge
Wastewater Treatment System
Owner Information:
E. S. Eskridge
424 Yadkin Run Lane
P.O. Box 1834
Southern Pines, NC 28387
[phone]
stun®4unc.com
Property Information:
5312 Farrington Road
Chapel Hill, NC 27514
Durham County
PIN# 0709-20-13-8735
PROFESSIONAL ENGINEER SEAL
FINAL DESIGN
NOT RELEASED FOR CONSTRUCTION
REV. ISSUED DATE DESCRIPTION
SHEET TITLE
Component Layout
DRAWN BY:
CREATED ON:
A. HUDSON
03/02/2023
REVISED BY:
REVISED ON:
RELEASED BY:
RELEASED ON:
I ----
DRAWING NUMBER
WW-3
12 of 61

DocuSign Envelope ID: 42F7C7FE-6E59-444A-96EC-6A626D410002
s Drenca 24'
Rlser Dase
Lld
L�!J
4 INLET 6
OUTLET BOOTS
ON ENDS OLNY
• 713P VIEW MEASUREMENTS
ARE TO WIDEST DIMENSIONS
Cy East In Place arenco Rlser Adapters _F 4'
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2/4'r— 3e 2/4'
a• ADtfPME-CE�� —
WATER LEVEL
SHOAF PRECAST SEPTIC INC.
MODEL: T.S 1250 $TB
NON TRAFFIC
1250 Gallon Septic Tank
413l) WEST US HWY 64
LEXINGTON, NC 27295
PHONE [phone]
FAX [phone]
WWW.SHOAFPRECAST.COM
SHOAF-1,250 SEPTIC TANK
STB-389
LIQUID CAPACITY-1,252 GALLONS/10' AIRSPACE
TANK HEIGHT-61 }'
BOTTOM OF TANK TO CENTER OF INLET-52'
BOTTOM OF TANK TO CENTER OF OUTLET-50'
LENGTH TO WI➢TH RATIO-2 TO 1
SIZE OF INLET 6 01 PIPE
TYPE OF INLET 6 OUTLET-POLYLOCK OR EQUAL (MEETS ASTM C-923)
CONCRETE PSI-40001 TANK WEIGHT- 11,000 1
REINFORCEMENT PER STATE CODE
SCALE - N.T.S.
-*VT -ME NDT
S PPLIED
VENT
4e'
TO BOTTOM DF
FLOW
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4. OUTLET
THROUGH
TO BOTTOM
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4,
SIDE VIEW
s
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Not to scale
n SEPTIC TANK (OR EQUIVALENT)
Not to scale
F1R•�E„T�
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n
Clean, Tamped Backfil
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B Rip Rap-\ w/ Grate
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Tamped Backfill 'Undisturbed Earth
@ DISCHARGE RIPRAP DETAIL
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AX20 Recirc. Tank - Top View
Fm. c naI
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24,88
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oe„cao�.ena�e
AX20 Recirc. Tank -Side View
_14"1P"'
Discharge Chamber - End View
Not to scale
n AX20-RT UV ADVANTEX TREATMENT SYSTEM - FOR ILLUSTRATION ONLY
Install Safety Net
In Each Access Riser
Install Safety Net BeloW 2nd Riser Rib
Rubber Washer,
Flat Washer, &
cap Nut or Lock Safety
Nut Net
m
Threaded Eye
Rise
Wall
Riser
Wall
S*Clamp
fNtti
Eye B
(4 Above Filter)
Not to scale
@) SAFETY NET (INSTALL IN TANK RISERS)
i�-
24' (typ)
Fiberglass
Reinforced
Beam
24" (typ)
Turn
Budde
W In.
Not to scale
ANTI -BUOYANCY INSTALLATION
NOTES
1. Boundary information based on GIS and
aerial data.
2. Septic Tank to have approved Orenco
Effluent Filter model FFPS-0854-36 NC-
3. Treatment system to be 100' from any Well,
15' from residence or building foundation,
50' from property lines, and 50' from
stream/pond. Verification of these setbacks
to be performed by contractor.
4. Contractor shall backfill around all access
areas such that storm Water is shed away
from potential entry points.
5. Invert elevations of all components to be
verified in field by contractor to ensure
proper operation.
6. All system piping to be SCH40 PVC except
Where noted
7. All gravity elbows to be long radius or
long sweeping type elbows.
8. Actual installation and placement of
treatment system to be overseen by
Contractor.
9. Use Class 'B' erosion control stone for
structural base for outlet stabilization
structure. Use #5 or #57 stone for
sediment control.
10. Discharge line must be covered to a
minimum depth of 18". Discharge pipe outlet
to have grate.
11. Flow from the receiving stream back into
the system shall be prevented.
12. Engineer Inspection required during system
installation and at final completion.
13. Contractor to seed and/or mulch
disturbed areas to coincide With existing
landscape. Area shall not be left With
uncovered soil.
14. Upon system completion, Contractor to
supply Engineer With documentation of
installation and a signed letter indicating
system Was installed per approved design
or noting any deviation from approved
design.
15. Contractor to install internet line to VCOM
control panel.
16. AdvanTex-RT Unit to be placed on gravel
bed and backfilled With gravel.
17. Mount Control Panel a minimum of 24"
above grade. Power to panel to be installed
by licensed electrician per code.
18. Leak test required on septic tank and pod.
19. Water spigot to be located on exterior of
residence Within 50' of tanks.
20. Pour concrete collar around flange of
treatment unit or install anti -buoyancy
beams per manufacturer's recommendations.
21. Existing septic tanks to be properly
abandoned. Contractor shall provide
documentation from Durham County.
22. All Wastewater from the SFR, including
greyWater, is to be conveyed to the septic
tank.
23. Separate circuits for each pump and
alarm/control panel are requried (2-12OV,
20 amp; 1-120V, 15amp)_ Separate conduits
required for phone and internet line.
24. Recirculation Timer Settings:
TIME ON/OFF: 0.94/14.06 minutes
12 gpm to Pod / 5 gpm to Septic Tank.
ANW
Engineers and Soil Scientists
Agri -Waste Technology, Inc.
501 N. Salem Street, Suite 203
Apex, North Carolina 27502
919-859-0669
www.agriwaste.com
Eskridge Surface Discharge
Wastewater Treatment System
Owner Information:
E. S. Eskridge
424 Yadkin Run Lane
P.O. Box 1834
Southern Pines, NC 28387
[phone]
stan®4unc.com
Property Information:
5312 Farrington Road
Chapel Hill, NC 27514
Durham County
PIN# 0709-20-13-8735
PROFESSIONAL ENGINEER SEAL
FINAL DESIGN
NOT RELEASED FOR CONSTRUCTION
REV, ISSUED DATE DESCRIPTION
SHEET TITLE
System Details #1
DRAWN BY: CREATED ON:
A. HUDSON 03/02/2023
REVISED BY: REVISED ON:
RELEASED BY: RELEASED ON:
DRAWING NUMBER
WW-4
13 of 61

DocuSign Envelope ID: 42F7C7FE-6E59-444A-96EC-6A626D410002
Control Panel 24"
above ground (min.)
4"x6" Support Post
24" Gasketed Fiberglass Safety Net With Safety Net With 4 Bury 36" min in
Lid With Stainless Quick Disconnect Quick Disconnects Vent natural soil.
Steel Bolts (4) One Piece Advantex AX20-RT
6" above ground Riser UV Unit
surface Splice Box Slope soil away
Cast In Place from unit
Ball Valve Riser Adapter
i
Return -- ---- _
Line
Undisturbed Clean, Tamped Bockfill 1 Return '
Earth Clean, Tamped Une I
Backfill
U ion With
-__- ; --- FIoW Orifice _I
III -I � I -I °oo
I I -I I I -I I I 'o o o L
Baffle I I I I II I II I II I o°c, Discharge Line
Holes
1 Undisturbed
j Earth to f
I Effluent1 I Support Pipe E 1
Filter ��Compacted (l
Baffled Septic Tank (FTP 0848-36-NC i Backfill \ Recirculation
I--
--------------
#78 Gravel Pump Vault
6" (min) Gravel Bed 6" (min) Gravel Bed
-I I I -I III-III-III-III-� i'� #5 or #57 Gravel I I -III -III -III -III III- _ _ Recirculation
l-I �-III-III-11=III- III-� I_I I I=1 I -I Transfer Line
Undisturbed Earth Undisturbed Earth Return Valve
Not to scale
SYSTEM DETAIL - FOR ILLUSTRATION ONLY
SINGLE
CONDUIT
(no splices)
CONDUIT
SUPPORT
RISER OR
CORRUGATED PIPE
COVER CONDUIT
MINIMUM 18"
TO RT UNIT
INSTALL
MULTIPLE
CONDUITS AS
NEEDED
Not to scale
MOUNT PANEL DIRECTLY
TO POSTS OR TO
ALUMINUM PLATE
CONTROL (grind off protruding screws)
PANEL
0000
2' min.
2X4TREATED -SECURE
WITH 4 - 3" DECK SCREWS
PER POST
GRAVEL
AV*fr
Engineers and Soil Scientists
Agri -Waste Technology, Inc.
501 N. Salem Street, Suite 203
Apex, North Carolina 27502
919-859-0669
www.agriwaste.com
Eskridge Surface Discharge
Wastewater Treatment System
OWner Information:
E. S. Eskridge
424 Yadkin Run Lane
P.O. Box 1834
Southern Pines, NC 28387
[phone]
stun®4unc.com
Property Information:
5312 Farrington Road
Chapel Hill, NC 27514
Durham County
PIN# 0709-20-13-8735
I , I TO POWER SOURCE PROFESSIONAL ENGINEER SEAL
ALL CONDUIT
TO BE 3/4 " (min)
3' BURIAL DEPTH
MINIMUM
CONTROL PANEL SUPPORT (OR EQUIVALENT)
Elevation Determination Sheet
Site Elevation Readings
AdvanTex RT Unit
Approximate Elevations
Elevation
Pipe Length from ST outlet
13.00ft
Dranline Invert at House
290.50ft
Slope of Line
2.75%
GS at Septic Tank
291.00ft
Ground Surface at RT Unit
290.50ft
GS at RT Unit
290.50ft
Elevation at Inlet Invert
288.52ft
Float Settings
Elev. (ft)
Height
Elevation at Discharge Invert
288.00ft
Distance to Inlet invert from top
25.8in
from Tank
Top of Unit
290.67ft
Recirculation
Floor (in)
Septic Tank
Cover over Inlet Invert
1.98ft
Low Water/Redundant Off
287.00
28
Ground Surface at Septic Tank
291.00ft
23.79in
Pump Override Timer
288.08
41
Cover over Septic Tank
12.00in
Extension Height
0.00in
High Water Alarm
288.21
42.5
1.00ft
Height of Unit
72.00in
Elevation at top of Septic Tank
290.00ft
6.00ft
Discharge Pump
Distance to Inlet Invert from Top
0.96ft
Bottom Elevation
284.67ft
Pump Off
286.00
16
Elevation at Inlet Invert of ST
289.04ft
Outlet Distance from Bottom
32.5in
Pump On
287.58
35
Drainline Length From House
60.00ft
Outlet Elevation
287.38ft
High Water Alarm
287.75
37
Slope of Line
2.43%
Height of Unit Exposed
2.00in
Distance to Outlet Invert from Top
1.13ft
Elevation at Outlet Invert of ST
288.88ft
n ELEVATION DETERMINATIONS
�ws
FINAL DESIGN
NOT RELEASED FOR CONSTRUCTION
REV. ISSUED DATE DESCRIPTION
SHEET TITLE
System Details #2
DRAWN BY: CREATED ON:
A. HUDSON 03/02/2023
REVISED BY: REVISED ON:
RELEASED BY: RELEASED ON:
DRAWING NUMBER
WW-5
14 of 61

DocuSign Envelope ID: 42F7C7FE-6E59-444A-96EC-6A626D410002
**NOTE -USE 24'
CAST -IN -PLACE
25 1/2
SHOAF PRECAST SEPTIC INC.
ORENC❑ RISER
19 1/2
ADAPTER
3.0
Orenco 24' 6'0 Oren co 24'
Riser Base Riser Base '
W/ Lid W/ Lid
59 /2'
\
65 /2'13
4' OUTLET
BOOT
TOP VIEW
­KTOP VIEW MEASUREMENTS
ARE TO WIDEST DIMENSIONS
4' SIDE
INLET BOOT
SCALE — N.T.S.
Cast in Place Orenco Riser Adapters
3A''t'
4.0'
-NOTE 1' BUTYL RUBBER STATE
MASTIC SEALANT APPROVAL #
25 1/2
CONTINUOUS IN JOINT SHOAF-1250
s 1/z•
STB-389
INLET
i191/2
0 TLET
91/2
78 3/4 '
--NOTE-TEE NOT
SUPPLIED
10' AI SPACE
V
VENT
2' VENTSLOT
LL
4 .0'TO BOTTOM OF
4' OUTLETOF
.0'
61 /2' 54 /2'
5 0'TO BOTTOM
4' INLET '
FL0W
THROUGH.--ma.o•
FLOW
THROUGH
SIDE VIEW
END VIEW
75 35'
6'
16
22
2.0'
Not to scale
MODEL: TS 1250 STB
NON TRAFFIC
1250 Gallon Septic Tank
4130 WEST US HWY 64
LEXINGTON, NC 27295
PHONE C336) 787-5826
FAX C336) 787-2826
W W W,SHOAFPRECAST,COM
SHOAF-1,250 SEPTIC TANK
STB-389
LIQUID CAPACITY-1,252 GALLONS/10' AIRSPACE
TANK HEIGHT-61
BOTTOM OF TANK TO CENTER ❑F INLET-52°
BOTTOM OF TANK TO CENTER OF OUTLET-50'
LENGTH T❑ WIDTH RATIO-2 T❑ 1
SIZE ❑F INLET & OUTLET-4' PIPE
TYPE ❑F INLET & OUTLET—P0LYL0CK ❑R EQUAL (MEETS ASTM C-923)
CONCRETE PSI-4000; TANK WEIGHT— 11,000 LBS,
REINFORCEMENT PER STATE CODE
15 of 61

DocuSign Envelope ID: 42F7C7FE-6E59-444A-96EC-6A626D410002
ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR.
Director
Permittee-
NPDES COClATC Number:
Coun
Engineer's Certification:
NORTH CAROLINA
Environmental Quality
E.S. Eskridge, Jr— 5312 Farrington Road
NCG551795
Durham
I, , a duly registered Professional Engineer
in the State of North Carolina, as authorized by the Permittee to observe [ daily, part time, full time ]
the construction of the project, ,
Project Name
Location
do hereby state that to the best of my abilities, I practiced due care and diligence to observe the construction of
said project such that it was advanced and completed in accordance and in compliance with the NPDES Permit,
approved plans and specifications, Authorization to Construct Permit, and General Permit Certificate of Coverage
issued by the Division of Water Resources.
Signature
Registration No.
Date
[Stamp]
[Any person who knowingly makes any false statement, representation, or certification in any application, record, report, plan
or other document filed or required to be maintained under Article 21 or regulations of the Environmental Management
Commission implementing that Article, or who falsifies, tampers with or knowingly renders inaccurate any recording or
monitoring device or method required to be operated or maintained under Article 21 or regulations of the Environmental
Management Commission implementing that Article, shall be guilty of a misdemeanor punishable by a fine not to exceed
$10,000, or by imprisonment not to exceed six months, or by both. [ 18 U.S.C. Section 1001 provides a punishment by a fine
of not more than $10,000 or imprisonment not more than 5 years, or both, for a similar offense.]
D � ��� North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1617 Mail Service Center I Raleigh, North Carolina 27699-1617
�w 919.707.9000

DocuSign Envelope ID: 42F7C7FE-6E59-444A-96EC-6A626D410002
NPDES General Permit NCG550000
A Complete Copy of the 2020 NCG550000 General Permit was Provided in the Permittee Package
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
GENERAL PERMIT NCG550000
DISCHARGE OF DOMESTIC WASTEWATER FROM
SINGLE FAMILY RESIDENCES
AND OTHER 100% DOMESTIC DISCHARGES
WITH SIMILAR CHARACTERISTICS
UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission,
and the Federal Water Pollution Control Act, as amended, this permit is hereby issued to all owners or
operators, hereafter permittees, which are covered by this permit as evidenced by receipt of a Certificate
of Coverage by the Environmental Management Commission to allow the discharge of treated domestic
wastewater in accordance with the effluent limitations, monitoring requirements, and other conditions set
forth in Parts I, II and III hereof.
This permit shall become effective November 1, 2020.
This permit shall expire at midnight on October 31, 2025.
Signed this day 10/30/2020
DocuSigned by:
�4 P Nof
8FB19BI349DD2478...
for S. Daniel Smith, Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 18