310239_Application Revision_20240905

w
ENGINEERS • MANUFACTURERS • CCNSTRUCTCRS
September 5, 2024
Christine Lawson
NCDEQ Division of Water Resources
1601 Mail Service Center
Raleigh, NC 27699-1601
AFO Permit Application
Subject: Melvin Bostic Farm
Facility # AWS310239
State Digester General Permit — Design Revision
Dear Ms. Lawson,
Roeslein & Associates, on behalf of the farm owner, hereby submits the following revision for digester design at Melvin Bostic
Farm.
As discussed, we are revising the design to eliminate the gravity transfer between existing Lagoon 27500A and existing Lagoon
27500B. This required a significant adjustment to Lagoon B freeboard and we have determined it is better to leave the existing
freeboard level in place. Therefore, we will install a floating pump at Lagoon A which will be used to transfer water to Lagoon B
as needed.
To facilitate your review of the enclosed documentation, the following is an itemized breakdown:
1. One (1) copy of revised "State Digester General Permit Application" application Page 2 of 6; Section 2.8 revised to
reflect added pump.
2. One (1) copy of revised engineering calculations to reflect added pump.
3. One (1) copy of revised detailed narrative of the Swine Digester Animal Waste Management System to reflect added pump.
4. One (1) copy of revised General Arrangement Plan to reflect added pump.
5. One (1) copy of revised Hydraulic Profile Plan to reflect added pump.
Please do not hesitate to contact me or my office if you have any questions, comments or require any additional information.
Thank you,
G . ��
Christopher Fey
Manager, Building Design & Construction
Roeslein & Associates
Attachments
Cc: Farm Owner
Page 1 of 1

2.3 Acreage cleared and available for application (excluding all required buffers and areas not covered by the application
system): See attached Waste Utilization Plan
Required Acreage (as listed in the CAWMP): See attached Waste Utilization Plan
Existing Application Area (pre -construction): See attached Waste Utilization Plan
Proposed Application Area (post -construction): See attached Waste Utilization Plan)
Is there a change to the existing WUP? YES or NO (circle one)
Is the Existing WUP attached? YES or NO (circle one)
Is the New (if applicable) WUP attached? YES or NO (circle one)
2.4 List and Describe all Storage/Treatment Structures Below:
a. DIGESTER or other PRIMARY TREATMENT: (double click on "Select" for drop -down menu box)
Treatment
Existing?
Name of
Treatment
Type of
Liner
Surface
Type of Cover
Ttl Capacity
Req'd Capacity
Unit Type
(Y/N)
Unit
Material
Area
Material
(cu. Ft.)
(cu.ft.)
Digester
N
Lagoon
Synthetic
39900
Synthetic (80 mil)
315,956
240,000
27000
Select
Select
Select
Select
Select
Select
a.1 Are engineering designs, drawings, specifications, and details attached? YES or NO (circle one)
b. SECONDARY TREATMENT/STORAGE: (double click on "Select" for drop -down menu box)
Name of Storage Unit
Existing?
Y/N
Type of Liner
Material
Surface Area
Ttl Capacity
cu. Ft.
Req'd Capacity
(cu.ft.)
Lagoon 27500A
Y
Full clay
77,000 sqft.
586,160
576,789
Lagoon 27500B
Y
Full clay
67,600 sqft.
575,472
562,092
Select
Select
2.5 Are KNOWN subsurface drains present within 100' of any application fields?
2.6 Are KNOWN subsurface drains in the vicinity or under the waste management system?
2.7 Does this facility meet all applicable siting requirements?
YES or NO (circle one)
YES or NO (circle one)
YES or NO (circle one)
2.8 Describe Water Movement between Barns, Digesters, and Storage Ponds (double click on "Select" for drop -down menu
box)
Location
Pump Station or
Gravity
Pipe Size
Minimum Pump
Ca acit
Plan Sheet
Reference
GPM
TDIJ
Barns to Digester
Pump Station
6"
697.3
21.13
RA270-00-27000-5
Digester to Secondary
Gravity
12"
N/A
N/A
RA270-00-27000-5
Secondary to Tertiary
Pump Station
5"
519
8.31
RA270-00-27000-5
Select
Select
Select
Select
Select
FORM: AWO-STATE-G-DIGESTER-7/15/2022 Page 2 of 6

s�
ROESLEIN
ENGINEERS • MANUFACTURERS • CONSTRUCTORS
27000 — Melvin Bostic Puma Calc
Wet Wei-&&17
El: 78 ft
P Su dace: 0 p9 g
Level: 7 It
Monarch Bioenergy LLC — Register, NC
Swine RNG Project
A1000 Pump Calc
R&A Project RA270-23
Issued 240904
Melvin Bostic Pit
Lift Station Digester
P Total: 10.48 psi g
Pipe 383
P00 384
0: 8
L: 14
4"High Presvre Pump ISHP -28
0: 6 n
Vet: 4.997 ft/s
Op: Fked spz 4a I800 rpm
Fb.' 6"e' 9Dm
L• 3 R
Vet: 8.473 ft/s
HL: 9.790E-03 ft
TH: 30.14It
HL• 0.944 ft
NPSHa: 39.5 it
P sn:tTotal: 3.03 psi
P disrh Total: 10.89 psi g
Power In: --
E8: __
NPSHr. --
Wet W ell-&&72
El: 85.Sft
P Surface: 0 pa g
Level: 7 It
3 P Total: 11.77 psi g
Pipe 311
Pipe 312
0:6in
0:6n
L: 15R
L-520ft
Vol: 8.473 ft/s
Val: 8.473 ft/s
HL: 2.034 ft
HL• 18.15 ft
Melvin Bostic Lagoon 27500A to Lagoon 27500B
Water Transfer
P Totat 2.471 psi g
P Total: 3.573 psi g
Pipe 517
0: Sin
4" Hog Pump SHP
Ppe 518
0: 5 in
INS
Pipe 515
0: 5 in
Pipe 516
0: 5 it
L: 1 ft
Vel: 8.943 ft/s
Op: Fked Speed @ 1800 rpm
Fbw: 519 gpm
L: 3 ft
L• 15 R
L• 100 ft
HL: 0.04742 ft
TH: 5.861 ft
Val: 8.943 ft/s
ft
Vel: 8.943 ft/s
Vel: 8.943 ft/s
NPSHa: 39.46 ft
HL• 1.113
HL• 2459 R
HL• 4.742 ft
P suct Total: 3.014 pa g
P disch Total: 2.954 pa g
Power In: --
Eff: --
NPSHr: --
Pressure Boundary 60
EI: 94 ft
Op: P Total @ 0 psi g
Fbw: 697.3 gpm
P Static:-0.4836 psi g
P Dynamic: 0.4836 psi
Lagoon
Pressure Boundary 91
El: 90 R
Dp: P Total @ 0 psi g
Flow 519 gpm
P Static: -0.5388 psi g
P Dynamic: 0.5388 psi

ROESLEIN.
ENGINEERS MANUFACTURERS OJNSTRUCTORS
Digester - Volume Calculations
Project: BOSTIC, MELVIN
Project No: RA270
Date: 2024-09-05
Rev: 0
Existing Configuration (For Reference)
Farm Information: Farm Population:
BOSTIC, MELVIN 4,800 GF
Total: 4,800
Storm and Rainfall:
Storm (25-yr, 24-hr): 7.5 in.
Heavy Rain: 7.5 in.
Proposed Configuration (Proposed Digester)
Flow Path: Barns -> Digester (Proposed) -> Existing Lagoon
Location: Duplin County, NC
Design By: 1RE
Checked By: MWK
*Note: Roeslein Digesters are designed regarding Hydraulic Retention Time, not NCDEQ Minimum Treatment Volume for hog farms
*Note: New digester lagoon is NOT providing additional treatment storage capacity in accordance with NCDEQ standards (135 cuft/lb*lb/hog), but instead
serves as a steady-state reservoir, diverting additional water volume to existing treatment lagoons for storage and land application.
*Note: Existing Melvin Bostic lagoons designed by Jimmy Vinson 4-11-1997, 11-26-1991
Volumes:
Total Capacity
4,800
Capacity I cf/head J= Total
Treatment Volume=1 4,8001 501 240,000 cf
Capacity I Retention Time (days) I=Total
Volume for Retention Time= 1 4,8001 40.001 121,048 cf
Volume (cf) I Days of HRT Storage
Provided Retention Time (days)= 1 241,140 1 97.53
Desired Digester Treatment Volume:
Sludge Storage:
Storm Storage:
Heavy Rain:
Total:
Volume Required (cf)
Volume Provided (cf)
Lagoon Calculations
Lagoon Volumes
240,000
241,140
0
0
0
0
0
0
240,000
241,140
Note: Sludge storage value is shown as 0 because seed sludge volume is negligible and influent sludge volume is accounted for in the 50
cuft/hd and 40 days HRT values.
Note: Both Rainfall values set to 0 because no rainfall will enter the sealed digester. Excess will be pumped off of cover.
Note: Per Conservation Practice Standard Waste Treatment Lagoon (Code 359) "General Criteria for All Lagoons", the digester storage
volume does not need to account for rainfall for completely covered digesters.
Total Temorary Storage
Proposed Configuration (Proposed Digester)
Digester (Proposed) Volume
Vol. (cf)
High Pump Elevation: 249,951
Low Pump Elevation: 232,479
Temorary Storage: 17,472
Digester (Proposed) Berm Length (FT): 285
Digester(Proposed)Berm Width(FT): 140
Digester (Proposed) Berm Slope: 3
Digester(Proposed)Stage-Storage
Elevation (ft)
Area (sf)
Incr. Vol. (cf)
Cumul. Vol. (cf)
81.9
14,484
-
82.9
16,206
15,339
15,339
83.9
18,000
17,097
32,436
84.9
19,866
18,927
51,363
85.9
21,804
20,829
72,192
86.9
23,814
22,803
94,995
87.9
25,896
24,849
119,844
88.9
28,050
26,967
146,811
89.9
30,276
29,157
175,968
90.9
32,574
31,419
207,387
91.9
34,944
33,753
241,140
92.91
37,386
1 36,159
1 277,299
93.91
39,900
1 38,637
1 315,936
Digester Treatment Volume:
at High Pump Elevation of:
at Start Pumping Elevation of:
at Low Pump Elevation of:
Elevation (ft)
Cumul. Vol. (cf)
92.15
249,951
91.90
241,140
91.65
232,479
Elevation Vol. (cf)
Top of Dike Elev. =
93.9
315,936
High Pump Elev. =
92.15
249,951
Start Pumping Elev. =
91.90
241,140
Low Pump Elev. =
91.65
232,479
Min. Operating Elev. =
89.9
175,968
Planned Sludge Elev. = 83.9 32,436
Finished Bottom Elev. = 81.9 -

ROESLEIN
ENGINEERS • MANUFACTURERS • CONSTRUCTORS
27000—BOSTIC, MELVIN Digester Narrative
Monarch Bioenergy LLC — Register, NC
Swine RNG Project
A1000 Digester Narrative
R&A Project RA270-23
Issued 240819
Farm will utilize existing barns with slotted floors over flushing pits to collect manure. The farm
operators use pull plug system and recycle water for flushing to manage the animal manure. As part of
this current project, a new anaerobic lagoon digester will be installed, and the animal manure will be
redirected to the new digester. After treatment in the in anaerobic digester, the effluent will flow into
the existing lagoon. There is no change to the existing farm operations, nor the volume of wastes
generated. The effluent water will be recycled back to the barn for pit recharge or irrigated in
accordance with the existing Waste Utilization Plan (WUP).
Upon flushing, the wastewater from the barns will be directed into a properly designed lift station
through a 12-inch diameter gravity pipe header. There will be two pumps in the lift station wet well and
each pump is designed for 100% of the design flow.
The lift station pump will be 15 HP GEA pump, designed for a flow of 697 gallons/minute, through 6-inch
diameter, HDPE SDR 17 force -main into the new anaerobic lagoon digester.
The approximate dimensions of the new anaerobic lagoon digester are 285 feet by 140 feet with a total
volume of 315,936 cubic feet and a treatment capacity of 241,140 cubic feet at operating level.
Before the excavation, the project area is stripped approximately 6 inches of topsoil and will be
stockpiled. Embankment material will be free of sod, roots, and other objectionable material. The
maximum thickness of each compacted layer will be 6-inches and compacted to 95% of Standard Proctor
at -1 to +3 percent of optimum moisture content per ASTM D698. Each lift shall be tested for moisture
and density. The stockpiled topsoil will be spread on the outside bank.
After the construction the lagoon, and all required pipe penetrations, the inside walls of the lagoon will
be smooth rolled prior to the installation of the baseliner. The baseliner will be 60-mil think HDPE
synthetic liner. After the liner is installed, it will be tested for leaks prior to filling the lagoon with
wastewater.
There will be an outlet structure with a weir (level control) that keeps the water level inside the digester
at a constant level. The effluent will gravity flow through a 12-inch diameter digester outlet pipe to the
level control wet well and gravity feed into the existing lagoon through a 12-inch diameter pipe.
Water will be transferred back to the existing lagoon 27000B a floating 5 HP GEA transfer, designed for a
flow of 519 gallons/minute, in lagoon 27000A through a 5" HDPE SDR 17 force -main.
Once the lagoon is within in 2 feet of the normal operating level, a floating cover will be installed to
capture the biogas produced by the anaerobic digestion of the organic wastes in the wastewater. The
captured biogas will be treated to produce renewable natural gas (RNG) by a micro -gas cleaning skid
(micro-GUS). Tail gas from micro-GUS will be vented to atmosphere, with levels documented in PAD
letter.

y
PROPERTY LINES
2
t
w"
100' WELL OFFSET
PROPOSED METER DROP
-moo
S2
RA-STD-295
27500A
owl !
Q�� I S 1
RA-STD-280
-o
WATER TRANSFER PUMP FROM 27500A TO
27500B
L EMSL
Oft PL
PL PL
HARY STEWART 9/4/2024 3:27:01 PM C:\VAULT\PROJECTS\MONARCH BIO ENERGY\REGISTER, NC\CADD\01
A� Q�
,off Q40*
�
A�
Qv
6 SEWER INFLUENT LINE
MODIFICATIONS NEEDED
DIGESTER INFLUENT -
S-6
RA-STD-266 —
PROPOSED METER DROP
v
---- X � 1
EXISTING POWER POLE
50' OFFSET
r5
�X DIGESTER EFFLUENT
27500B
AREA 1000 MELVIN BOSTIC FARM 27000 LOCATION DETAIL
ENERALARRANGEMEN
/ �
I HEREBY CERTIFY THAT THIS
I
I /
ENGINEERING DOCUMENT WAS
PREPARED BY ME OR UNDER MY
McC L U R E TM
DIRECT PERSONAL SUPERVISION
AND AT I AM A DULY LICENSED
PROFESS ONAL ENGINEER UNDER
making lives better
THE LAWS OF THE STATE OF
NORTH CAROLINA.
2001 W. BROADWAY, COLUMBIA MO 65203
573-814-1568
MY LICENSE NUMBER IS
NC CERTIFICATE OF AUTHORITY C-4628
LICENSE —NO
N
TRUE NORTH

FARM
i- PRODUCTION INFORMATION CITY
AVG ANNUAL ANIMAL POPULATION 11200
ESTIMATED RNG INJ DTH/YR 13195
AN I MAL TYPE GF
BARN OPERATION TYPE Flush
SYSTEM OPTION SELECTED QTY
EXISTING BARN EFFLUENT GRAVITY SEWER 14
S-1 DIGESTER INFLUENT LIFT STATION 2
GRAVITY & FORCED WATER
S-2 DIGESTER EFFLUENT TRANSFER 1 each
S-3 WET WELL YES 2
S-4 COVER/RAIN WATER REMOVAL YES 2
S-5 NOT USED
S-6 POWER FLUSH YES 1
S-7 SLUDGE REMOVAL YES 1
S-8 EMERGENCY VENT YES 2
S-9 BIOGAS INTERFACE YES 1
DIGESTER
PARAMETER VALUE UNITS
LENGTH 285 FT
WIDTH 140 FT
TOP OF DIKE ELEVATION 93.9 FT
DEPTH 12 FT
BOTTOM ELEVATION 81.9 FT
DIKE WIDTH 15 FT
INTERIOR SLOPE 3:1
EXTERIOR SLOPE 3:1
OPERATING HEIGHT 10 FT
OPERATING ELEVATION 91.9 FT
R LOW DIGESTER OPERATING HEIGHT N/A FT
LOW DIGESTER OPERATING ELEVATION N/A FT
OPERATING VOLUME 1803968 GAL
TOTAL VOLUME 2363517 GAL
CUT 5960 CY
FILL 5746 CY
NET 215 CY
'912:
SERVICE
SIZE
SPECIFICATION
CITY
UNITS
BARN EFFLUENT (GRAVITY)
1211
PL01
950
FT
EXISTING BARN EFFLUENT (FORCED)
N/A
N/A
N/A
N/A
LIFT STATION OVERFLOW
12"
HP01
100
FT
DIGESTER INFLUENT (FORCED)
811
HP02
2000
FT
DIGESTER INFLUENT (FORCED)
N/A
N/A
N/A
FT
DIGESTER INFLUENT CLEANOUT
X 11PL01
N/A
EA
DIGESTER EFFLUENT (FORCED)
611
HP02
1000
FT
WATER TRANSFER WET WELL LATERAL
12"
HP01
50
FT
DIGESTER EFFLUENT (GRAVITY)
12"
HP01
200
FT
WET WELL LATERAL
N/A
N/A
N/A
FT
COVER WATER SUCTION
311
HP01
80
FT
COVER WATER DISCHARGE
311
HP02
200
FT
POWER FLUSH
611
HP02
100
FT
SLUDGE REMOVAL
12"
HP02
50
FT
MIXING SUCTION
811
HP02
50
FT
MIXING DISCHARGE
611
HP02
400
FT
4
U45tN I
UHANIitU CiKAVI I Y LINt I U UICit51 tK
L 1 5
I Jt
Ut-
SCALE
ill - 75'
SIZE
E
MILLIMETERS:
3
18JULY24
UPDATED LAGOON BACKGROUND INFORMATION
ZTS
CF
MK
2
20JUN24
UPDATED LAGOON CALCULATION INFORMATION
ZTS
CF
MK
:xx =±o.io
xxx =10.010
ANGLES =±0.5'
1
19APR24
ISSUED FOR PERMITTING
ZTS
CF
KPL
DIMENSION TOLERANCE
(UNLESS OTHERWISE
SPECIFIED)
0
15APR24
ISSUED FOR PERMITTING
ZTS
CF
KPL
REV
DATE
REVISION DESCRIPTION DRWN
CHK'D
APP'D
FRACTIONS:
MACHINED PARTS =±1/64
INCHES:
#
BY
I BY
I BY
THIS DOCUMENT, ALONG WITH ITS DESIGNS, KNOW-HOW AND DRAWINGS, CONTAINS CONFIDENTIAL AND PROPRIETARY INFORMATION
THAT IS THE PROPERTY OF ROESLEIN & ASSOCIATES, INC. AND ROESLEIN ALTERNATIVE ENERGY, LLC AND IS PROTECTED UNDER STATE
HOLE LOCATIONS ON
.X =±.020
AND FEDERAL LAW, INCLUDING 18 USC SECTION 1836 AND 17 USC SECTION 101 et seq. ROESLEIN & ASSOCIATES, INC. AND ROESLEIN
-+1/32
=±.010
ALTERNATIVE ENERGY, LLC RESERVES ALL PATENT, COPYRIGHT AND OTHER PROPRIETARY RIGHTS TO THIS DOCUMENT, INCLUDING ALL
WELDED ASSEMBLIES
.XX
=±.005
DESIGN, MANUFACTURING, REPRODUCTION, USE, AND SALES RIGHTS THERETO, EXCEPT TO THE EXTENT SAID RIGHTS ARE EXPRESSLY
LINEAR DIMENSIONS ON
.XXX
=±.0002
GRANTED TO OTHERS. THIS DOCUMENT MUST NOT BE DUPLICATED OR DISCLOSED, IN WHOLE OR IN PART, WITHOUT THE EXPRESS
=±1/16
STRUCTURAL WELDMENTS
.XXXX
WRITTEN PERMISSION OF ROESLEIN & ASSOCIATES, INC. AND ROESLEIN ALTERNATIVE ENERGY, LLC. ANY USE OF THE INFORMATION
ANGLES =±.05°
CONTAINED IN THIS DOCUMENT OTHER THAN BY THE AUTHORIZED RECIPIENT FOR THE EXPRESS PURPOSE FOR WHICH IT HAS BEEN
ANGLES =±1 °
PROVIDED IS STRICTLY PROHIBITED. UPON THE REQUEST OF ROESLEIN & ASSOCIATES, INC. AND ROESLEIN ALTERNATIVE ENERGY, LLC
THE HOLDER OF THIS DOCUMENT AGREES TO IMMEDIATELY RETURN OR DESTROY THIS DOCUMENT AND ALL COPIES THEREOF IN ITS
POSSESSION. 92023 ROESLEIN & ASSOCIATES, INC. AND ROESLEIN ALTERNATIVE ENERGY, LLC
DO NOT SCALE
PRINT
MONARCH BIOENERGY
REGISTER, NC
AREA 1000
MELVIN BOSTIC FARM
GENERAL ARRANGEMENTS
ENGINEERS • MANUFACTURERS • CONSTRUCTORS
DWG.
SHEET REV
NO. RA270-00-27000 4OF6 4

120
110
100
70
NORTH BARNS
LIFT STATION
(SEE DETAIL)
FF:90.8
FF:90.8
FF:90.8
FF:90.8
PIT:89.50
PIT:89.50
PIT:89.50
PIT:89.50
I I
�
NOTE:
INVERTS OF EXISTING GRAVITY PIPING ARE
APPROXIMATED BASED ON BEST AVAILABLE
SURVEY INFORMATION.
120
110
d1iZf,
LEVEL CONTROL
WET WELL
HnoE (`OVER
TOB: 93.90 ��
SEE DETAIL
( )
RIM:940
OUTLET:
FLOATING
PROPOSED
91.90 (LC-2)
PUMP
TOB: 92.50
SOUTH BARNS DIGESTER
EXISTING
TOB: 91.00
RIM- 90.00 OL: 91.90
r�L
LAGOON
27500A FB: 91.50
EXISTING
FF:90.6 FF:90.6
INV:89.15
LAGOON
27500B FB: 90.00
90
PIT:89.50 PIT:89.50 -INV: 88.90
TOP OF STORM: 90.00
INV: INV: 88.40
i I
LEVEL
��
LEVEL
TOP F TEMP
89 90Fpl2
CONTROL
CONTROL
STORAGE:88.65
PIPE (LC-1)
IPE (LC-2)
0.5 MMIN.
0.25°�° MIN.
BOTTOM:
86.40
SHWT: 85.00
BOTTOM: 81.90
BOTTOM:
80.00
80
BOTTOM: 78.00
70
LEGEND:
TOB: TOP OF BANK ELEVATION
FF:
FINISHED FLOOR ELEVATION
FB:
FREEBOARD ELEVATION
EG:
EXISTING GRADE ELEVATION
OL:
OPERATING LEVEL ELEVATION
INV:
INVERT ELEVATION
SHWT:
SEASONAL HIGH WATER TABLE
LIQUID FLOW DIRECTION
CHAMILTON 9/4/2024 2:08:22 PM R:\200599\06-DRAWINGS\CIVIL\AlK\REGISTER-CLUSTER 1\AFO PERMIT DRAWINGS\27000 BOSTIC AFO PERMIT.DWG