NCS000134_Renewal Application_20191107

SUPPLEMENTAL INFORMATION REQUIRED FOR RENEWAL OF INDIVIDUAL
NPDES STORMWATER PERMIT
Two copies of each of the following shall accompany this submittal in order for the application
to be considered complete: P � . n"
(Do not submit the site Stormwater Pollution Prevention Plan) cf„ 7 2019
Initials DENR-LAND QUALITY
STORMWATER PERMITTING
2)T%C— 1. A current Site Map from the Stormwater Pollution Prevention Plan. The location of
industrial activities (including storage of materials, disposal areas, process areas and
loading and unloading areas), drainage structures, drainage areas for each outfall,
building locations and impervious surfaces should be clearly noted.
YhC. 2. A summary of Analytical Monitoring results during the term of the existing permit
(if your permit required analytical sampling). Do not submit individual lab reports.
The summary can consist of a table including such items as outfall number,
parameters sampled, lab results, date sampled, and storm event data.
3. A summary of the Visual Monitoring results. Do not submit individual monitoring
reports. The summary can consist of a table including such items as outfall number,
parameters surveyed, observations, and date monitoring conducted.
(JM C. 4. A summary of the Best Management Practices utilized at the permitted facility.
Summary should consist of a short narrative description of each BMP's in place at
the facility. If the implementation of any BMP's is planned, please include
information on these BMP's.
5. A short narrative describing any significant changes in industrial activities at the
permitted facility. Significant changes could include the addition or deletion of
work processes, changes in material handling practices, changes in material storage
practices, and/or changes in the raw materials used by the facility.
$Mc. 6. Certification of the development and implementation of a Stormwater Pollution
Prevention Plan for the permitted facility (Sign and return attached form).
If the final year analytical monitoring of the existing permit term has not been completed
prior to filing the renewal submittal, then the last years monitoring results should be submitted
within 30 days of receipt of the laboratory reports. (i.e. do not withhold renewal submittal
waiting on lab results)

Permit Coverage
©� Renewal Application Form NPDES Permit Number
NCDENR National Pollutant Discharge Elimination System NCS 00013
Stormwater Individual Permit
Please provide your permit number in box in the upper right hand corner, complete the information in the space provided
below and return the completed renewal form along with the required supplemental information to the address indicated.
Owner Information
Owner / Organization Name:
Owner Contact:
Mailing Address:
Phone Number:
Fax Number:
E-mail address:
Facilitv Information
Facility Name:
Facility Physical Address:
Facility Contact:
Mailing Address:
Phone Number:
Fax Number:
E-mail address:
Permit Information
Permit Contact:
Mailing Address:
Phone Number:
Fax Number:
E-mail address:
Discharoe Information
Receiving Stream:
Stream Class:
Basin:
Sub -Basin:
Number of Outfalls:
PA
correspondence will be mailed
" UIC.
rn
Facility/Activity Changes Please describe below any changes to your facility or activities since issuance of your permit. Attached a
separate sheet if necessary.
Qu;1d;.w 1.10 . � Oo5-1 wG.s Co�ns���cke� �n Ja�•�«,.0 �01'1 . �h;s b.►;Id:� oatv,��.5
,.�;�,�1n �.t. tri.�.,e_ Sclarcol:de c�,�l SF6 morr��2o..c as u1dS OrC.V+D.�Iu ��t,rr�d '► n
av,d es�c lasecd wA V erms ,
CERTIFICATION
I certify that I am f 4ihi ormation contained in the application and that to the best of my knowledge and belief
such information i tr
Signature Date
A �' PYesi Le,\+
Print or pe name of person signing above Title
SW Individual Permit Coverage Renewal
Please return this completed application form Stormwater Permitting Program
and requested supplemental information to: 1612 Mail Service Center
Raleigh, North Carolina 27699-1612

A SURWY AND PLAT FOR
AK7CA
SHO*M S7n'MWTD? U444GEMEWT COW ROLS
MERRY HILL TOWNWP - BDME COUNTY - NORM CAROUM
SCALE- 1'-60' NOVD60? 2a 2012

Avoca, Inc. Storm Water Analytical Monitoring Results
Permit No. NCS000134
Outfall #: 001
Sample Date
Total Flow
Total Rainfall
pH
COD
TSS
Total
Nitrogen
Phosphorus
Million Gal.
Inches
mg/L
mg/L
mg/L
mg/L
12/22/2015
0.052
0.7
7.68
65.0
127.0
14.40
2.78
6/23/2016
0.155
2.1
7.17
51.0
142.0
2.77
0.51
12/19/2016
0.088
1.2
7.14
86.0
23.0
3.31
0.86
6/20/2017
0.096
1.3
6.79
49.0
41.0
2.31
0.77
1/23/2018
0.015
0.2
7.64
496.0
125.0
12.40
4.02
1/4/2019
0.022
0.3
7.51
142.0
105.0
1.90
0.56
7/23/2019
0.273
3.7
4.97
61.0
j 123.0
j 4.45
j 0.70
Average
0.100142857
1.357142857
6.99
135.7
1 98.0
1 5.93
1 1.46

Avoca, Inc. Storm Water Analytical Monitoring Results
Permit No. NCS000134
Outfall #: 003
"Simple Date
Total Flow
Total Rainfall
pH
COD
TSS
Total
Nitrogen
Phosphorus
Million Gal.
Inches
mg/L
mg/L
mg/L
mg/L
8/8/2015
0.046
0.7
8.59
64.0
3.6
4.73
0.65
8/31/2015
0.039
0.6
6.73
725.0
36.0
17.35
6.74
9/25/2015
0.117
1.8
4.47
4228.0
68.0
23.73
7.68
10/28/2015
0.033
0.5
6.96
318.0
18.0
1.72
1.04
11/19/2015
0.078
1.2
6.63
498.0
134.0
11.22
2.86
12/25/2015
0.046
0.7
6.62
1149.0
90.0
43.66
5.98
2/4/2016
0.143
2.2
6.85
344.0
102.0
5.53
1.59
2/16/2016
0.072
1.1
7.03
217.0
273.0
5.76
1.31
3/28/2019
0.091
1.4
7.60
271.0
19.0
6.17
2.10
5/3/2016
0.052
0.8
7.09
218.0
57.0
6.10
1.56
6/7/2016
0.078
1.2
7.02
196.0
169.0
5.21
1.24
6/23/2016
0.137
2.1
7.14
340.0
1 233.0
5.15
1.44
7/19/2016
0.065
1
6.73
206.0
9.7
7.54
0.94
8/8/2016
0.13
2
7.74
95.0
77.0
1.75
0.67
9/19/2016
0.072
1.1
8.01
2800.0
49.0
3.94
0.71
11/4/2016
0.052
0.8
6.58
240.0
19.0
6.45
2.70
11/14/2016
0.02
0.3
6.91
482.0
34.0
12.25
0.98
12/19/2016
0.078
1.2
6.81
95.0
28.0
8.79
2.03
1/23/2017
0.039
0.6
6.93
171.0
21.0
3.81
2.47
2/8/2017
0.039
0.6
7.16
1770.0
353.0
35.80
12.76
3/31/2017
0.091
1.4
6.71
1080.0
153.0
18.36
20.46
4/24/2017
0.15
2.3
6.51
59.0
5.2
7.67
0.64
5/23/2017
0.111
1.7
6.61
250.0
7.4
5.23
2.60
6/20/2017
0.085
1.3
6.62
251.0
48.0
6.41
2.24
7/17/2017
0.098
1.5
7.10
276.0
57.0
6.52
2.63
8/8/2017
0.052
0.8
7.54
168.0
20.0
4.76
15.48
10/10/2017
0.033
0.5
6.93
957.0
59.0
19.72
8.76

Sample Date
Total Flow
Total Rainfall
pH
COD
TSS
Total
Nitrogen
Phosphorus
Million Gal.
Inches
mg/L
mg/L
mg/L
mg/L
10/29/2017
0.072
1.1
7.81
328.0
19.0
7.15
4.02
12/6/2017
0.023
0.35
7.70
522.0
115.0
15.86
4.58
1/23/2018
0.013
0.2
7.71
351.0
101.0
8.51
2.88
1/23/2018
0.013
0.2
7.71
324.0
100.0
10.57
2.92
2/28/2019
0.033
0.5
7.64
266.0
48.0
9.16
5.44
3/12/2018
0.065
1
7.13
283.0
42.0
6.00
3.35
4/24/2018
0.085
1.3
7.06
217.0
14.0
5.31
1.95
5/18/2018
0.039
0.6
7.07
515.0
46.0
6.13
5.55
9/15/2018
0.137
2.1
7.60
26.0
6.9
1.09
0.25
9/16/2018
0.13
2
7.52
28.0
6.1
1.08
0.25
10/11/2018
0.065
1
6.99
442.0
26.0
14.86
5.58
11/15/2018
0.065
1
7.51
462.0
133.0
12.14
3.40
1/4/2019
0.02
0.3
7.46
61.0
58.0
3.07
1.54
2/11/2019
0.065
1
7.42
595.0
83.0
16.94
6.21
2/11/2019
0.065
1
7.42
701.0
93.0
16.69
5.91
3/26/2019
0.033
0.5
6.67
41.0
17.0
3.03
0.38
4/9/2019
0.15
2.3
8.24
179.0
18.0
7.05
2.57
6/5/2019
0.039
0.6
7.65
392.0
45.0
11.05
2.28
7/23/2019
0.241
3.7
5.10
276.0
48.0
8.05
1.85
7/23/2019
0.241
3.7
5.12
416.0
82.0
13.01
2.80
Average
0.08
1.19
7.07
508.4
69.0
9.83
3.70

Avoca, Inc. Storm Water Analytical Monitoring Results
Permit No. NCS000134
Outfall #: 004
Sample Date
Total Flow
Total Rainfall
pH
COD
TSS
Total
Nitrogen
Phosphorus
Million Gal.
Inches
mg/L
mg/L
mg/L
mg/L
12/22/2015
0.013
0.7
6.64
<20
<2.8
0.57
<0.04
6/23/2016
0.039
2.1
6.82
<20
6.80
0.72
0.07
12/19/2016
0.022
1.2
7.02
<20
< 2.7
0.15
0.18
6/20/2017
0.024
1.3
6.95
20.00
< 2.6
0.52
0.08
1/23/2018
0.004
0.2
7.76
24.00
< 3.1
1.57
0.14
1/4/2019
0.006
0.3
7.39
< 20
< 2.6
< 0.51
0.06
7/23/2019
0.069
3.7
4.87
24.00
12.00
1.90
0.10
Average
0.188405797
0.189189189
1.36345
#VALUE!
#VALUE!
0.3
#VALUE!

Avoca, Inc. Storm Water Visual Monitoring Results
Permit No. NCS000134
Outfall #: 001
The scale for Clarity, Floating Solids, and Suspended Solids is 1-5. 1 is very clear or none present to 5 is high
or covered.
Sample Date
Color
Odor
Clarity
Floating
Solids
Suspended
Solids
Foam.?
Oil Sheen?
Erosion?
(1-5)
(1-5)
(1-5)
Yes / No
Yes / No
Yes / No
12/22/2015
Light
Brown
None
3
2
2
No
No
No
6/23/2016
Clear
None
1
1
1
No
No
No
12/19/2016
Clear
None
1
1
1
No
No
No
6/20/2017
Clear
None
1
1
1
No
No
No
1/23/2018
Clear
None
1
1
1
No
No
No
1/4/2019
Light
Brown
None
2
2
1
No
No
No
7/23/2019
Light Gray
None
2
2
1
No
No
No

Avoca, Inc. Storm Water Visual Monitoring Results
Permit No. NCS000134
Outfall #: 002
The scale for Clarity, Floating Solids, and Suspended Solids is 1-5. 1 is very clear or none present to 5 is high
or covered.
Sample Date
Color
Odor
Clarity
Floating
Solids
SuspendedFoam?
Solids
Oil Sheen?
Erosion?
(1-5)
(1-5)
(1-5)
Yes / No
Yes / No
Yes / No
12/22/2015
Light
Brown
None
1
1
1
No
No
No
6/23/2016
Light
Brown
None
1
1
1
No
No
No
12/19/2016
Clear
None
1
1
1
No
No
No
6/20/2017
Clear
None
1
1
1
No
No
No
1/23/2018
Clear
None
1
1
1
No
No
No
1/4/2019
Clear
None
1
1
1
No
No
No
7/23/2019
Clear
None
1
2
1
No
No
No

Avoca, Inc. Storm Water Visual Monitoring Results
Permit No. NCS000134
Outfall #: 003
The scale for Clarity, Floating Solids, and Suspended Solids is 1-5. 1 is very clear or none present to 5 is high
or covered.
Sample Date
Color
Odor
Clarity
Floating
Solids
Suspended
Solids
Foam?
Oil Sheen?
Erosion?
(1-5)
(1-5)
(1-5)
Yes / No
Yes / No
Yes / No
8/8/2015
Gray
None
3
2
2
No
No
No
8/31/2015
Light
Brown
None
2
1
1
No
No
No
9/25/2015
Light Gray
None
2
2
1
No
No
No
10/28/2015
Light
Brown
None
2
1
1
No
No
No
11/19/2015
Light Gray
None
2
1
1
No
No
No
12/25/2015
Gray
None
3
2
2
No
No
No
2/4/2016
Light Gray
None
2
2
1
No
No
No
2/16/2016
Light Gray
None
2
2
1
No
No
No
3/28/2019
Light Gray
None
2
2
1
No
No
No
5/3/2016
Light Gray
None
2
2
1
No
No
No
6/7/2016
Light Gray
None
2
2
1
No
No
No
6/23/2016
Light
Brown
None
2
2
1
No
No
No
7/19/2016
Light
Brown
None
1
1
1
No
No
No
8/8/2016
Clear
None
1
2
2
No
No
No
9/19/2016
Clear
None
1
1
1
No
No
No
11/4/2016
Light Gray
None
1
1
1
No
No
No
11/14/2016
Light Gray
None
1
1
1
No
No
No
12/19/2016
Clear
None
1
1
1
No
No
No
1/23/2017
Light Gray.
None
1
1
1
No
No
No
2/8/2017
Gray
None
3
1
1
No
No
No
3/31/2017
Light Gray
None
2
2
1
No
No
No
4/24/2017
Clear
None
1
1
1
No
No
No
5/23/2017 1
Clear
None
1
1
1
No
No
No

Sample Date
Color
Odor
Clarity
Floating
SuspendedFoam?
Oil Sheen?
Erosion?
Solids
Solids
(1-5)
(1-5)
(1-5)
Yes / No
Yes / No
Yes / No
Light
6/20/2017
Brown
None
2
2
2
No
No
No
Light
7/17/2017
Brown
None
3
1
2
No
No
No
Light
8/8/2017
Brown
None
2
3
1
No
No
No
Light
10/10/2017
Brown
None
2
1
1
No
No
No
10/29/2017
Clear
None
1
1
1
No
No
No
12/6/2017
Brown
None
4
1
4
No
No
No
Light
1/23/2018
Brown
None
2
1
1
No
No
No
Light
1/23/2018
None
2
1
1
No
No
No
Brown
Light
2/28/2018
Brown
None
2
2
1
No
No
No
3/12/2018
Clear
None
2
1
1
No
No
No
4/24/2018
Clear
None
1
1
1
No
No
No
Light
5/18/2018
Brown
None
2
1
1
No
No
No
9/15/2018
Light Gray
None
2
2
2
No
No
No
9/16/2018
Clear
None
1
1
1
No
No
No
Light
10/11/2018
Brown
None
2
2
2
No
No
No
11/15/2018
Light Gray
None
2
2
2
No
No
No
1/4/2019
Clear
None
1
2
1
No
No
No
Light
2/11/2019
None
2
1
1
No
No
No
Brown
Light
2/11/2019
None
2
1
1
No
No
No
Brown
3/26/2019
Light Gray
None
2
1
1
No
No
No
Light
4/9/2019
Brown
None
2
1
1
No
No
No
Light
6/5/2019
Brown
None
2
3
2
No
No
No
7/23/2019
Light Gray
None
2
2
2
No
No
No
7/23/2019
Light Gray
None
2
2
2
No
No
No

Avoca, Inc. Storm Water Visual Monitoring Results
Permit No. NCS000134
Outfall #: 004
The scale for Clarity, Floating Solids, and Suspended Solids is 1-5. 1 is very clear or none present to 5 is high
or covered.
"Samplee
Color
Odor
Clarity
Floating
Solids
Suspended
Solids
Foam?
Oil Sheen?
Erosion?
(1-5)
(1-5)
(1-5)
Yes / No
Yes / No
Yes / No
12/22/2015
Clear
None
1
1
1
No
No
No
6/23/2016
Clear
None
1
1
1
No
No
No
12/19/2016
Clear
None
1
1
1
No
No
No
6/20/2017
Clear
None
1
1
1
No
No
No
1/23/2018
Clear
None
1
1
1
No
No
No
1/4/2019
Clear
None
1
1
1
No
No
No
7/23/2019
Clear
None
1
1
1
No
No
No

Avoca, Inc. Storm Water Visual Monitoring Results
Permit No. NCS000134
Outfall #: 007
The scale for Clarity, Floating Solids, and Suspended Solids is 1-5. 1 is very clear or none present to 5 is high
or covered.
SampleFloating
Date
Color
Odor
Clarity
Solids
Suspended
Solids
Foam?
Oil Sheen?
Erosion?
(1-5)
(1-5)
(1-5)
Yes / No
Yes / No
Yes / No
12/22/2015
Clear
None
2
1
1
No
No
No
6/23/2016
Clear
None
2
1
1
No
No
No
12/19/2016
Clear
None
1
1
1
No
No
No
6/20/2017
Clear
None
1
1
1
No
No
No
1/23/2018
Clear
None
2
1
1
No
No
No
1/4/2019
Clear
None
1
1
1
No
No
No
7/23/2019
Light Gray
None
2
2
1
No
No
No

BEST MANAGEMENT PRACTICES (BMPs)
AVOCA, LLC
Stormwater Permit No. NCS000134
BMP 1 - Containment Berms: Avoca, LLC has spill containment berms installed
around each of its fuel, solvent, and other processing tanks. These berms are large enough
to hold the total capacity of at least one of the contained tanks plus a minimum of 10%.
The following is a listing of the containment areas and their locations:
1) Fuel Oil Storage and Unloading, West of Building 1001-2
2) Gasoline Storage and Unloading, South of Building 1002-4
3) Emergency Generator Fuel Storage, Near Cooling Tower
4) Emergency Generator Fuel Storage, South of Building 1001-1
5) Hazardous Waste Storage, Building 1003-5
6) Tank Farm, South of 1001-1
7) Tank Farm, North of Building 1001-1
8) Tank Farm, West of Building 1003-2
9) Unloading Station, South of Building 1001-2
10) Sclareol Recrystallization & Storage tanks, Building 1003-10
11) Chemical Storage, 1003-7
12) Botanical Extraction Process & Storage tanks, North of Building 1001-11
13) Biomass Extraction Process & Storage tanks, Building 1004-2
14) Limited Use Generator, South of Building 1004-1
15) Sclareolide and Sclareol Recrystallization storage tanks, Building 1005-1
BMP 2 - Weekly monitoring of all areas listed in BMP 1: Monitoring includes
inspection of equipment and tanks within containments as well as all areas of the facility.
The operational status of the processes, housekeeping and cleanliness, condition of
equipment and tanks, and notification of spills and leaks are noted as well as any
corrective actions taken.
BMP 3 - Annual monitoring of the areas listed in BMP 1: Monitoring includes in
depth inspection of equipment and tanks within containments as well as all areas of the
facility. Parameters of inspection include: housekeeping and cleanliness, operating
condition of equipment, evidence of spills and/or leaks, stormwater conveyance (i.e.
condition of valves, flow channels, etc...), erosion evidence, actions required to remedy
any problems, and the date the problem was resolved.
BMP 4 - Monitor berm contents: Avoca, LLC keeps its spill containment berm drains
closed and locked. All pumps and valves are capped when not in use. The berms are
either drained by the boiler operator or pumped to Avoca's Tertiary Lagoon. All rain

water is inspected before it is drained to determine if there it has oil sheen or other
contaminates. In the case of a spill, the berms can be pumped out with a suction tanker or
either directly pumped to Avoca's Waste Water Treatment facility. The spilled liquid can
be either treated and disposed of or reused.
BMP 5 - Hazardous waste storage: All hazardous waste is stored in a concrete dike area
with a protective roof covering the containment. There are signs stating that Hazardous
waste is to be stored in this area only.
BMP 6 - Analytical Monitoring: Analytical monitoring of stormwater runoff is
performed as stated in Stormwater Permit No. NCS000134. Analytical monitoring of
outfalls #001, #003, and #004 is performed quarterly and outfall #003 is monitored
monthly. The temperature and pH are recorded at the time of sampling. The samples are
put on ice and sent to Environmental 1 located in Greenville, NC where they are analyzed
for Nitrogen, Phosphorous, Total Suspended Solids, COD, and pH. The analytical
monitoring results are kept at Avoca, LLC and sent to NCDENR within 30 days of
receiving the results from Environmental 1.
BMP 7 - Qualitative Monitoring: Qualitative monitoring of Stormwater Runoff is
performed as stated in Stormwater Permit No. NCS000134. Qualitative monitoring of
outfalls #001, #002, #003, #004, #006, and #007 is performed twice annually. Outfall
#005 is not monitored under the stormwater permit as it is covered under a separate
NPDES permit. The qualitative results are kept on file at Avoca, LLC.
BMP 8 - Training: Training of all Avoca, Incorporated personnel occurs annually.
Employees are trained in the safe handling of chemicals, spill prevention of chemicals,
location of shutoff valves, who to contact in case of a spill, location of containment
equipment, and operation and maintenance of containment equipment.
BMP 9 — Spill Clean -Up: Hazardous waste clean-up and major Spills are handled be an
outside contractor. AVOCA, LLC has a contract with Inco, Inc, located in Rocky Mount,
NC to handle all it's major spill incidents.
BMP 10 — Covered Waste: All waste drums for scrap metal are to be covered. A tarp is
used to cover the scrap metal container which is used to store crushed drums at Avoca,
LLC.

2019 Notice of Significant Changes at the Avoca, LLC Facility
Stormwater Permit No. NCS000134
Addition of Building 1005-1:
Building 1005-1 was constructed in January 2017 for the expanded operation of
Sclareol Recrystallization (SFG) and Sclareolide. Building 1005-1 operates in the same
manner with the same materials as buildings 1001-1 and 1003-10 have for many years.
The sle purpose of this building was to allow for more production of the SFG and
Sclareolide products. All tanks, vessels, materials, etc. are covered and surrounded by
berms that meet all requirements. Building 1005-1 is inspected at the same frequency as
all other buildings listed in the BMPs.
All prior material handling and storage practices are currently in effect at Avoca,
LLC. The major Raw Materials handled at the facility also remain the same as in the past
notification.
Avoca, LLC. always strives to maintain a healthy environment and to prevent
pollution of the land, air, and water of the surrounding area. Avoca, LLC. understands the
importance of maintaining a natural, unpolluted environment and makes certain that its
actions in no way have adverse effects on the surrounding ecosystems. Avoca, LLC. also
realizes the importance of maintaining a safe workplace and strives to always meet all
OSHA and other general safety guidelines. Avoca, LLC. will continue its policy of
maintaining the condition of the environment and safety of its facility through proper
management of its processes and through the training of its employees to meet the criteria
set forth to sustain a healthy, safe workplace and environment.

STORMWATER POLLUTION PREVENTION PLAN
DEVELOPMENT AND IMPLEMENTATION
CERTIFICATION
North Carolina Division of Energy, Mineral, and Land Resources - Stormwater Permitting
Facility Name:
Permit Number:
Location Address:
County:
"I certify, under penalty of law, that the Stormwater Pollution Prevention Plan (SPPP) document and all
attachments were developed and implemented under my direction or supervision in accordance with a system
designed to assure that qualified personnel properly gather and evaluate the information required by the SPPP.
Based on my inquiry of the person or persons who manage the system, or those persons directly responsible
for gathering the information, the information gathered is, to the best of my knowledge and belief, true,
accurate and complete."
And
"I certify that the SPPP has been developed, signed and retained at the named facility location, and the SPPP
has been fully implemented at this facility location in accordance with the terms and conditions of the
stormwater discharge permit."
And
"I am aware that there are significant penalties for falsifying information, including the possibility of fines and
imprisonment for knowing violations."
Sign (according to permit signatory requirements) and return this Certification. DO NOT
SEND STORMWATER POLLUTION PREVENTION PLAN WITH THIS CERTIFICATION.
Signature Date
Au U QY'CS1dev+
Print orl&nay6e of person signing above Title
SPPP Certification 10/13