310261_re: lagoon sampling_20180620

ROY COOPER
• Governor
MICHAEL S. REGAN
Secretary
Water Resources LINDA CULPEPPER
Envhu inetual Quaff, Interim Director
May 21, 2018
'NCI;y��y�x�l���ir�i7iTC,»LfilfUDUL � t i
TURNRECEIPTREOiTF.tTFn
f
Next Generation Family Ventures LLC JUN 2 0 Mc
Next Generation 1 11 L
296 Edwards Rd pT
Beulaville, NC 28518
SUBJECT: Lagoon Sampling - April 13, 2018
Next Generation.1
Pemrit {�AWS3102
--
Dear Next Generation Family Ventures LLC:
Thank you for your cooperation in the Division's lagoon waste sampling efforts on April 13, 2018. On that
day seven teams of Division staff sampled 35 farms and a total of 55 waste lagoons. Multiple teams were
necessary to assure that teams followed proper biosecurity protocols to protect your animals. I apologize
for the short notice that was provided to you by our staff. It was our intent to do the sampling as efficiently
and effectively as possible with as little disruption to you and other operators. Staff notified you as soon
as possible once we were comfortable that weather would cooperate and we had staff prepared to complete
the desired sampling on a single day. Complete results of the sampling are available on the NCDA&CS
Agronomic Services, Division PALS website and can be accessed there at your convenience.
httpJ/www.neagr.gov/agronomi/pals/
The Division submitted the samples to the lab on April 13, and the standard waste analysis was performed
the following week. The certified results are available to use for loading rate calculations in you waste
application records. Our staff followed sampling protocol established by NCDA&CS Agronomic Sampling
Folder No. 6, revised April 2014, a copy of which is included with this letter. You may at any time resample
your lagoons to establish updated results if you feel more representative sample is desired for future
application events.
One of the intents of the sampling effort was to look at observed changes in lagoon sampling results in a
relatively short period of time. Our records show that a previous sampling event took place on March 17,
`-2018. Results of the April 13 and March 17"sampling events are shown on the following pages for each
lagoon sampled on your farm.
The results show a significant difference in the PAN concentrations as well as other macro and micro
nutrients that put into questions the validity of the March 171 sampling results. It is unlikely that a lagoon
make-up will change significantly in a month without significant operations event occurring like a lagoon
sludge clean out. Staff also noted a high observed sludge blanket in your lagoon; however, have not yet
obtained records of the last sludge survey to verify visual observation. For these reasons the Division has
deemed the March 171 sampling results for lagoon NGl to be invalid until additional information or
explanation can be provided to justify differences in sampling results. More details on the information
requested to validate the March 171 sampling data is included below.
-'%1— Nothing Compares
State of North Carolina I Environmental Quality I Divldoo of Water R�
Water Quality Regional operations Section
1636 Mail Serna Center I Raleigh, North Carolina 27699-1636
. =' ' 919-707-9129

Lagoon Sampling — April 13, 2018
Page 2
Lagoon Name_ Mil
Sample Results (mWaALPAN in IbsJ1000gallons)
3/17-4/13
Parameter 3/17/2018 4/13/2018 Difference % change
558
1121
564
101%
23
4.7
2.4
101%
40
252
212
531%
435
753
318
73%
110
361
251
227%
27
174
147
547% .
29
122
93
320%
2.3
-70.7
68.4
2969%
0.3
6.0
5.8
1990%
0,7
. ---21.4—,-- -
-' 20.6
-2839%
0.3
28.2
27.9
10983%
OS
0.8
0.3
70%
168.5
201.9
33.4
20%
7.5
7.7
02
3%
0.6
0.1
-0.5
-81%
As a result of initial evaluation of the sampling results the Division will be conducting additional evaluation
of historic data at your farms and at the other farms that were sampled on April 13, 2018. It is necessary to
further investigate the unusual changes in lagoon characteristics between March 17 and April 13, 2018.
To assist in the investigation please provide the following to the Wilmington Regional Office no later than
June 21, 2018.
• Results of the last 2 years of sludge survey, including information on who conducted the survey.
• Records of any sludge removal that occurred between March 17 and April 14, 2018.
• Any operational changes that may have contributed to the lagoon characteristics between March
17 and April 13, 2017.
• Results of any additional lagoon waste analysis for the lagoon in question conducted since March
17, 2018
- - -- Please contact the Wilmington Regional Office at [phone] or Christine Lawson at (919) 807- 6354
if you have further questions.
Sincerely
Jon Risga
Chief, Water Quality Regional Operations Section
Division of Water Resources
Enclosure
cc: Wilmington WQROS Regional Supervisor
WQROS Central Files

pendkx 1. Lagoon Sludge Survey Form Revised August 2008 • •.
A Farm Permit or DWQ Identification Number Fac 31-261
B. Lagoon Identification NG1
( Perscm(s) Taking Measurements Nick Edwards
D Date of Measurement 6/172017 r
E Mettwds/Devlcas Used for Measurement of: c
a Distance from the lagoon liquid surface to the top of the sludge layer.
1ON202018
Scaled Pole
b. Distance from the lagoon liquid surface to the bottom (soil) of the lagoon, pY(
Scaled Pole "
c. Thickness of the sludge layer if making a direct measurement with "core sample•.
F. Lagoon Surface Area (using dimensions at Inside top of banks 1.72 (acres)
(Draw a sketch of the lagoon an a separate sheet list dimenskms, and calculate surface area The lagoon
may have been built different than designed, so measurements should be made.)
G. Estimate number of sampling points: 00-)
EL Less than 1.33 acres: Use 8 points
b. if more than 1.33 ac. 1.72 acres x 6 = 10 , with mmdmum of 24.
(Using sketch and dimensions, develop a uniform grid that has the same number of intersectiom as the
estimated number of sampll g points needed. Number the intersection points on the lagoon grid so that data
recorded at each can be easily matched.)
H. Conduct sludge survey and record data on "Sludge Survey Data Sheet (Appends 2). Also, at the
location of the pump intake, take measurements of distance from liquid surface to top of sludge
layer and record It on the Data Sheet Qast row); thou must be at least 25 ft when Irrigating.
Xt the time of the survey, also measure the distance from the Ma)dmum Liquid Level In the Present Liquid
�--Level (measure at the lagoon gauge pole): c 0.80
J. Determine the distance from the top of bank to the Mandmum Liquid Level 1.60
(use lagoon management plan or other lagoon records)
K Determine the distance from the Maximum Liquid to the Nfnimum Liquid level: 200
(use lagoon management plan or other lagoon records)
L Calculate the distance from the present liquid surface level to the Minimum Liquid Level 1.20
(Item K Minus hem L assuming the present liquid level is below the Ma)dmum Liquid Level)
M. Record from the Sludge Survey Data Sheet the distance from the present liquid surface level to the
lagoon bottom (average for all the measurement points) 8.60
N. Record from the Sludge Survey Data Sheet the distance from the present liquid surface level to the top
of the sludge layer (average for all the measurement points): 5.67
O. Record from the Sludge Survey Data Sheet the average thickness of the sludge layer. 293
P. Calculate time thickness of the erdsting Liquid Treatment Zone Qbem N minus Item L): 4.47
Q. H Item O Is greater than item P, proceed to the Worksheet for Sludge Volume and Treatment Volute.
If Item O Is equal to or less than Item P, you do not have to determine volumes.
Completed by: Next Generation Family Ventures LLC �� �te: 61172017
Print Name /Signature
L/

/Ix 2 Sludge Survey Data Sheet'
tagoo n Idenfificathn NG1
�mplated by:
V Print Name
Revised August 2008
Signature
Date: _ W 2017
(A)
(8)
(C)
(C)-(8)
Grid Point
Distance from liquid surface
Distance from figtud surface
Thicket of sludge layer
No.
to tDP of SILXIC a
to 129DDn bottom
Ft & m.
It tenths
Ft & in.
Ft tenths
Ft & in.
Ft rths
1
5.7
8.6
29
2
5.7
8.6
29
3
5.8
8.6
28
4
5.7
8.6
29 '
5
5.6
8.6
3.0
6
5.5
86
31
7
5.5
8.6
3.1
8
5.8
8.6
28
9
5.7
8.6
29
10
5.7
8.6
2.9
11
0.0
0.0
0.0
12
0.0
0.0
0.0
- 13
0.0
0.0
0.0
14
0.0
0.0
0.0
15
OM
0.0
0.0
16
00
0.0
00
17
0.0
0.0
0.0
18
0.0
0.0
0.0
19
0.0
0.0
0.0
20
0.0
0.0
0.0
21
0.0
0.0
0.0
22
0.0
0.0
0.0
23
0.0
0.0
0.0
24 1
1
0.0
1 1
0.0 I
I0
0
Number of ints with readings
10.0
X x
10.0
x x
10.0
Average of
points
x x
5.7
X x
8.6
X x
29
At pump
5.5
x x x x x x
Intake
'All Grid Points and corresponding sludge layer thicknesses must be shown on a sketch attached to this
Sludge Survey Data Sheet

/ppandlx 3. Worksheetfor sludge volume and treatment volume Revised August 2008
/(� e average thickness of the sludge layer and the thickness of the existing liquid (sludge -free) treatment zone are determined
in the information on the Lagoon Sludge Survey Form ( Items O and P. respectively). In this example, the average sludge
ayer thidmess is 25 feet and the existing liquid treatment zone Is 3.5 feet If the lagoon has a designed sludge storage volume,
see notes at end of the worksheet The dimensions of the lagoon as measured and the side slope are needed
for calculations of sludge volume and of total treatment volume. If the lagoon is a standard geometric shape, the sludge
volume and the treatment volume in the lagoon can be estimated by using standard equations. For approximate volumes
of rectangular lagoons with constant side slope, calculate length and width at the midpoint of the layer, and mutt * by layer
thickness to calculate layer volume. as shown In the example. For irregular shapes, convert the total surface area to a square
or rectangular shape. For exact volumes for lagoons with constant side slope, the °Prisnmidal Equations" maybe used. ,
M
Example
Your Lagoon
1. Average sludge Layer Thickness ()
25
R
293
R
2 Depth of the lagoon from top of bank to bottom sold surface (D)
11
ft.
11.0
ft
3. Slope = Horizontal/ vertical side slope (S)
3
200
4. Length at the top of Inside bank (L)
457
fL
650.00
it
5. Width at top inside slope (W)
229
ft.
115.00
it.
6. Length at midpoint of sludge layer Lm= L-2S(D-(T/2))
398.5
tt
611.86
ft
7. Width at midpoint of sludge layer Wm W-2S(D-(T2))
170.5
ft.
76.86
ft
8. Volume of sludge (Vs) Vs=L,aW„ T
169.860
fe
137.791
fe
9. Volume in gallons: V%=V'7.5 ga At".
1.273.950
gal.
1,033.431
get.
10. Thickness of existing riquld tmt zone (Y)
35
It
4.47
it
11. Thickness of total treatment zone (Z) Z= T+Y
6
ft
7.40
ft
12 Length at midpoint of tonal trot zone L,= L-2(S)(D-(Z2)
409
It.
620.8D
it
13. Width at midpoint of toted tmL Zone Wi = W-2(S)(D-(Z2)
181
fL
85.80
it
14. Volume of toted treatment zone (Vz) Vz = LL W: Z
444.174
fts
394,158
fts
15. Ratio ( R ) of sludge layer volume to total Treatment Volume
R=VsfVz
0.38
0.35
If the ratio R exceeds 0.60, than a sludge Plan of Action may be required. Check with DWQ for
Information on filing the Plan of Action.
Note: if the lagoon has a designed sludge storage volume (DSSV), subtract that volume from both the volume
of sludge (Vs) (Item 8) and from the volume of total treatment zone (Vz) (Item 14), and take the ratio.
Then, R = (Vs-DSSV) / (Vz - DSSV)
Example: If DSSV = 85,OD0 f e, then R = (169,860 - 85,000) / (447,174 - 85,000) = 84,860 / 362,174 = 0 24.
16 Design sludge storage volume (DSSV)
17. Ratio (R) of sludge layer volume to treatment volume adjusted
for designed sludge storage volume
rr. r
024 0.35

(4ppetidix 1. Lagoon Sludge Survey Form Revised August 2008
JA Farm Permit or DWO Identification Number Fac 31-261
B. Lagoon Identification NG1
`^berson(s) Taking Measurements Nick Edwards
D. Date of Measurement 5/28/2016
E. Methods/Devices Used for Measurement of
EL Distance from the lagoon liquid surface to the top of the sludge layer.
Scaled Pole
b Distance from the lagoon liquid surface to the bottom (soil) of the lagoon.
Scaled Pale
c. Thickness of the sludge layer if making a direct measurement with 'core —sampler".
WA
F. Lagoon Surface Area (using dvnensions at inside top of bank): 1.72 (acres)
(Draw a sketch of the lagoon on a separate sheet, fist dimensions. and calculate surface area The lagoon
may have been built different than designed, so measurements should be made.)
G. Estimate number of sampling points: (_10-)
a Less than 1.33 acres: Use 8 points
b. It more than 1.33 ac. 1.72 acres x 6 = 10 , with mmdmum of 24.
(Using sketch and dimensl=, develop a uniform grid that has the same number of Intersections as the
esfunated number of sampling poles needed Number the int i cffon points on the lagoon grid so that data
recorded at each can be easily matched.)
H. Conduct sludge survey and record data on 'Sludge Survey Data Sheet (Appendix 2). Also, at the
location of the pump Intake, take measurements of distance from liquid surface to top of sludge
layer and record it on the Data Sheet (last row); this must be at least 2.5 ft when Irrigating.
�,f the time of the survey, also measure the distance from the Marmnum Liquid Level to the Present Liquid
Level (measure at the lagoon gauge pole). 11.31)
J. Determine the distance from the top of bank to the Maodmum Liquid Level 1.60
(use lagoon management plan or other lagoon records)
K Determine the distance from the Maximum Liquid to the Minimum Liquid level: 2.00
(use lagoon management plan or other lagoon records)
L Calculate the distance from the present fiqu id surface level to the Minimum Liquid Level 0.70
(Item K Minus Item 1, assuming the present liquid level is below the Maodmum Liquid Level)
M. Record from the Sludge Survey Data Sheet the distance from the present liquid surface level to the
lagoon bottom (average for all the measurement points) _ 8.10
N. Record from the Sludge Survey Data Sheet the distance from the present liquid surface level to the top
of the sludge layer (average for all the measurement points): 5.33
O. Record from the Sludge Survey Data Sheet the average thickness of the sludge layer. - 277
P. Calculate the thickness of the existing Liquid Treatment Zone (Item N minus Item L): 4.63
Q. If Item O Is greater than Item P, proceed to the Worksheet for Sludge Volume and Treatment Volume.
If Item O Is equal to or less than Item P, you do not have to detenNne volumes.
Completed by. Next Generation Family Ventures LLC r` // %C�M.rn � Date: 5/292016
�1 Print Name/Signature

1Y
,,ndbr 2 Sludge
goon Survey Data 3heeY
1//oon Identification NG1
mplated by.
r IiMM
Revised August 2D08
Signature
Date: 5128/2016
(A)
(8)
(C)
(C)-(B)
Grid Point
Distance from liquid surface
Distance from Liquid surface
Thickness of sludge layer
No.
to top of SWC a
to lagoon bottom 509)
Ft & In.
Ft tenths
Ft & in.
Ft tenths
Ft & in.
Ft (tenths
1
5.4
8.1
27
2
5.4
8.1
27
3
5.5
8.1
26
4
5.4
8.1
27
- 5
5.3
8.1
28
6
5.2
8.1
29
7
52
8.1
29
8
5.3
8.1
2.8
9
5.3
8.1
28
10
5.3
8.1
2.8
11
0.0
0.0
0.0
12
0.0
0.0
0.0
13
0.0
0.0
0.0
14
0.0
0.0
0.0
15
0.0
0.0
0.0
16
0.0
00
0.0
17
0.0
0.0
0.0
18
0.0
0.0
0.0
19
0.0
00
0.0
20
0.0
0.0
0.0
21
0.0
0.0
0.0
22
0.0
0.0
0.0
23
0.0
0.0
0.0
24
1 0.0
1
D.D
1
0.0
Number of%�ntswith read
10.0
X X
10.0
X X
10.0
Average of
X X
5.3
X X
8.1
X X
28
Points
At pump
5.1
X X X X X X
Intake
'All Grid Points and corresponding sludge layer thicknesses must be shown on a sketch attached to this
Sludge Survey Data Sheet
IN

I
f peedix 3. Wwksheet for sludge volume and treatment volume Revised August 20D8
I
�11�e average thickness of the sludge layer and the thickness of the existing liquid (sludge -free) treatment zone are determined
%- n the information on the Lagoon Sludge Survey Form ( Items O and P, respectively) In this example, the average sludge
Vlayer thickness Is 25 feet and the existing liquid treatment zone is 3,5 feet If the lagoon has a designed sludge storage volume,
see notes at end of the worksheet The dimensions of the lagoon as measured and the side slope are needed
for calculators of sludge volume and of total treatment volume. If the lagoon is a standard geometric shape, the sludge
volume and the treat nant volume In the lagoon can be estimated by using standard equations. For approximate volumes
of rectangular lagoons with constant side slope, calculate length and width at the midpoint of the layer, and multiply bylayer
thickness to calculate layer volume, as shown In the example. For Irregular shapes, convert the total surface area to a square
or rectangular shape. For exact volumes for lagoons with cor>stard skis slope, the'Prismddad Equations' may be used.
1. Average sludge Layer Thickness (T)
2 Depth of the lagoon from top of bank to bottom sot surface (D)
3 Slope = Horizontalf vertical side slope (S)
4. Length at the top of inside bank (L)
5. Width at top inside slope (W)
6. Length at midpoint of sludge layer Lm= L-2S(D-(T/2))
7. Width at midpo'urt of sludge layer War W-2S(D-M))
8. Volume of sludge (Vs) Vs=L Wm T
9. Volume in gallons: Vs,=V7.5 gal./f?.
10. Thickness of existing liquid tart. zone (Y)
11. Thickness of total treatment zone (Z) Z= T+Y
12 Length at midpoint of total tmt zone L. = L-2(S)(D-(Z/2)
13 Width at midpoint of total tmt Zone Wi = W-2(S)(D-(Zl2)
14. Volume of total treatment zone (Vz) Vz = Ll WIZ
Example
Your Lagoon
25
ft
277
it
11
ft
11.0
it
3
2-00
457
R
650.00
ft
229
ft.
115.00
R
398.5
It.
611.54
It.
170.5
R
7654
It.
169,860
ft?
129.656
ft3
1,273,950 gal.
972.421
gal
3.5
it
4.63
it
6
ft
7.40
it
409
it
620.80
R
181
ft
85.80
R
444,174 fe 394,158 its
15. Ratio ( R ) of sludge layer volume to total Treatment Volume
R = Vs/Vz 038 0.33
If the ratio R exceeds 0.50, than a sludge Plan of Action may be required. Cheek with DWQ for
Information on filing the Plan of Action. -
Note: If the lagoon has a designed sludge storage volume (DSSV), subtract that volume from both the volume
of sludge (VS) (Item 8) and from the volume of total h eat. ent zone (Vz) (Item 14), and take the ratio.
Then, R = (Vs-DSSV) I (Vz - DSSV)
Example: ff DSSV = 85,000 tl , then R = (169,860- 85,000) / (447,174 - 85,000) = 84,8601362,174 = 0.24.
16 Design sludge storage volume (DSSV)
17. Ratio (R) of sludge layer volume In treatment volume adjusted
T 'for designed sludge storage volume 0.24

CDABCS Agronomic Division
Phone: [phone] Websfte: www.neagr.gov/agronomU
Report No. FY18-W007296
Predictive
Client: Next Generation Family Ventures,
Advisor.
LLC
314 Willard Edwards Rd
y
Waste
Report} Beulaville, NC 28518
Duplln County
scn•
Unka to Helpful
Information Sampled: 08/01/2018
Received: 06/04/2018
Farm: 31261
Completed: 06/08/2018 PALS #: 407124
PALS #:
Sample InformationNutrient
Measurements are given In units of parts per million (ppm), unless utherwise
Nitrogen (N) P K Ca Mg S Fe Mn Zn
specified.
Cu
B Mo
Other Results
C AI Na Cl
ID: NG1
Code: ALS
Total N:
I 33.9 695 104 49.3 41.8 1.61 0.31 0.42
0.50
0.75
0.30 193 -
Description: Swine
Total KJeldahl N: 491
-----------------------'—I---
_
Lagoon Uq.
Inorganic:
Grower Comments:
NH4-N
SS EC pH BD CCE
Stan)
ALE
C:N
DM
N
Not Provided
NO3-N
(le (mS/cm) (Unitiess) (Ib/yd� (%)
(1000 gal)
(Unitless)
7.68
-
Estimate of Nutrients Available for First Year (lb/1000 gal)
Other Results (Ib/1000 gal)
Application Method:
N P205 K20 Ca Mg S Fe Mn Zn
Cu
B Mo
AI Na CI
Irrigation
2.05 0.65 6.96 0.87 0.41 0.35 0.01 T T
T
0.01 -
T 1.61
North Carolina
v�
H
Totracm Trust Fund Co Lsdon
CEir� l
JUN 2 0 2018
Reprogramming of the laboratoryanformatlon-management system that makes this report possible Is being funded
through a grant from the North Carolina Tobacco Trust Fund Cominlssiorl.6
Thankyou for using agronomic services to manage nutrients and sgireguard environmental quality. 7
- Steve Troxler, Commissioner ofAgr%ulture,