310066_Certified Mail_20180521

RO`r'COOPER
F ,
ImUO+J
- MICHAEL S. REGAN
LINDA CULPEPPER
r , anrttra:pa Vi nl a. ., itl _a-�
May 21,2018
CERTIFIED MAIL 7016 2140 0000 0562 4202
RETURN RECEIPT REQUESTED
Charles Edwards
Cedar Lane Farm
565 Lyman Rd
Beulaville,NC 28518
SUBJECT: Lagoon Sampling-April 13,2018
Cedar Lane Farm
Permit#AWS310066
Duplin County
Dear Charles Edwards:
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.
http://ww-w.ncagr.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 for lagoon CE 1 that put into questions the validity of the March 17'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 CEl 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.
'�,-Notinna Compares`--_.
Stale of North Carolina I Fnvironmental Quality I Division of Water Resources
Water Quality Wonal Operations Section
1636 Mail Service Center I Raleigh,North Carolina 27699-1636
919-707-9129

Lagoon Sampling-April 13,2018 `
Page 2
Laltoon Name: CEI-66
Sample Results m ,PAN in lbsJ1000gallons)
3/17-4/13
Parameter 3/17/2018 4/13/2018 Difference %change
561 2072 1511 269%
2.3 8.6 6.3 269%
40 1040 1000 2532%
432 959 528 122%
109 996 887 813%
26 -- - 654 628 2388%
29 318 288 980%
2.4 220.8 218.5 9292%
0.3 21.6 21.4 7416%
0.7 71.4 70.7 10256%
0.3 88.3 88.0 31086%
1 0.5 1.5 1.1 222%
165.8 276.8 111.0 67%
7.5 7.5 0.0 0%
0.6 0.4 -0.2 -340/,
Lagoon Name: CE2-66
Sample Results(m /l,PAN in lbsJ1000gallons)
3/17-4/13
Parameter 3/17/2018 4/13/2018 Difference %change
552 698 145 26%
2.3 2.9 0.6 260%
35 28 -7 -19%
411 921 510 124%
102 159 58 57%
24 44 21 87%
27 45 18 68%
1.8 4.3 2.5 142%
0.2 0.6 0.4 187%
0.5 1.1 0.6 121%
0.2 1.8 1.6 649%
0.5 0.8 0.3 74%
160.6 219.9 59.3 37%
7.5 7.9 0.3 5%
0.4 0.0 -0.4 -98%

r
Lagoon Sampling-April 13,2018
Page 3
Two lagoons were sampled at your farm. Concentrations reported for the two lagoons in March 2018 were
noticeably more similar to one another than compared to the April sampling results. The variation found
in the April 13 sampling analysis is much more consistent with normal variations found in swine lagoon
effluent is NC. The following two tables show the differences reported for your lagoons for the March and
April Sampling Events.
3/17/2018 Sampling Results 4/13/2018 Sampling Results
m t PAN in lbsJI000gallons) m 'l,PAN in lbs./1000gallons)
_ La oon ID La oon ID
Parameter CEI-66 CE2-66 Range Parameter CEI-66 CE2-66 Range
561 552 9 2072 698 1374
2.3 2.3 0.0 8.6 2.9 5.7
40 35 5 1040 28 1012
432 411 20 959 921 38
109 102 7 996 159 837
26 24 3 654 44 610
29 27 3 318 45 273
2.4 1.8 0.6 220.8 4.3 216.6
0.3 0.2 0.1 21.6 0.6 21.0
0.7 0.5 0.2 71.4 1.1 70.2
0.3 0.2 0.0 88.3 1.8 86.4
t 0.5 0.5 0.0 t 1.5 0.8 0.7
165.8 160.6 5.2 276.8 219.9 56.9
7.5 7.5 0.0 7.5 7.9 0.3
0.6 0.4 0.2 0.4 0.0 0.4
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
fiuther investigate the unusual changes in lagoon characteristics between March 17 and April 13,2018.
To assist in the investigation Rlease 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

Lagoon Sampling—April 13,2018
Page 4
Please contact the Wilmington Regional Office at(910)796-7215 or Christine Lawson at(919) 807-6354
if you have further questions.
Sincerely,
/i
,offaarU
Chief,Water Quality Regional Operations Section
Division of Water Resources
Enclosure
cc: Wilmington WQROS Regional Supervisor
WQROS Central Files