NCS000531_MONITORING INFO_20180511

STORMWATER DIVISION CODING SHEET
NCS PERMITS
PERMIT NO.
DOC TYPE
❑ FINAL PERMIT
7Y- MONITORING REPORTS
❑ APPLICATION
❑ COMPLIANCE
❑ OTHER
DOC DATE
❑ lb\c
YYYYMMDD

RECEIVED
STORMWATER DISCHARGE OUTFALL (SDO)
Permit Number: NCS S000531 or
Certificate of Coverage Number: NCG
FACILITY NAME STI Polymer
PERSON COLLECTING SAMPLE(S) Adam Daniel
CERTIFIED LABORATORY(S) ESC Lab Sciences
Part A: Specific Monitoring Requirements
MAY 112018
MONITORING REPORT
DEt\R-LAt`D QUALITY
SAMPLES COLLECTED DURING CALENDaOMWMTEANRMITTING
(This monitoring report shall be received by the Division no later than 30 days from
the date the facility receives the sampling results from the laboratory.)
COUNTY Lee
PHONE NO.( 919 ) 777-5995
Lab # ENV375
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 2.
Outfall
Date
50050
1.5
9.0
96
6-9
100
No.
Sample
Collected
Total
Flow (if.app.)
Total
Rainfall
Styrene
Vinyl Acetate
Methyl
methacrylate
pH
COD
mo/dd/ r
MG
inches
m L
m
m L
m L
-Benchmark:. --- ._..
-, ... .:
'..• .., •.' ,'
A15 .,. ..:,+
9;0..; .;.r:.`.96.,'
_'.-' -
6=9
100T
- ..
01
04/23/18
0.14
< 0.00307
<0.00163
< 0.0012
6.18
39.9
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? _ yes X no
(if yes, complete Part B)
• V h• I M ' A t• 't M nitorin Requirements
Part B. etc
Outfall
a antenance
Date
c m v o
50050
100556
00530
00400
No.
Sample
Total Flow
Total Rainfall
Oil & Grease
Non -polar
Total
pH
New'Motor Oil
Collected
(if applicable)
(if appl.)
O&G/TPH
Suspended
Usage
(Method 1664
Solids
SGT-HEM), if
appl.
mo/dd/ r
MG
inches
m 1
m I
Units
al/mo
Form SWU-246• last revised 21212012
Page 1 of 2

STORM EVENT CHARACTERISTICS:
Date 4/23/18
Total Event Precipitation (inches): 0.14
Event Duration (hours): 6 (only if applicable — see permit.)
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
Mail Original and one copy to:
Division of Energy, Minerals, and Land Resources
Attn: Central Files
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
"1 certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the in the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
(Signature of Permittee)
5-
(Date)
t"i it j r 4
Form SWU-246, last revised 21212012
-- . Page 2 of 2

a
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance onfilling out thisfonn, please visit: hJz//h 2o.cnr.sl ale. nc. ushu/Forms DOCn llents. hurl! m isc faros
Permit No.: N/C/ S / o / o /o / 5 / 3 / 1 / or Certificate of Coverage No.: N/C/G/_/_/_/_/_/_/
Facility Name: s'ri Polymer
County: Lee Phone No. [phone]
Inspector: Adam Daniel I I I
Date of Inspection: 4/23/2018
Time of Inspection: 1255
0.14
Total Event Precipitation (inches):
Was this a Representative Storm Event? (See information below) ® Yes ❑ No
Please check your permit to verify if Qualitative Monitoring must be performed during a representative
storm event (requirements vary).
A "Representative Storm Event" is a storm event that measures greater than 0.1 inches of rainfall and that
is preceded by at least 72 hours (3 days) in which no storm event measuring greater than 0.1 inches has
By this signature, I certify that this report is accurate and complete to the best of my knowledge:
(Signature of Permittee or Designee)
I. OutfalRescription: Outfall No. �itt1erV VVoe' d' rcIt
e'etc')
Pipe into ditch
Receiving Stream:
loading
Derribe the industrial a�tivit(es that occutiw l�j� tt)e outfg drainaege area
o raw materia s tchemica s an som avast ts)
2. Color: Describe the color of thejischarge in aasic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: ark gray, ue, fight tint
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): None
Page I of 2 MAY 112016
Swu-242-112608 DENR-LAND QUALITY
STORMWATER PERMITTING

4. Clarity: Choose the number which best describes the clarity of the discharge, where 1 is clear
and 5 is very cloudy:
O 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where I is no solids and 5 is the surface covered with floating solids:
O 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where 1 is no solids and 5 is extremely muddy:
O 2 3 4 5
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No
10. Other Obvious Indicators of Stormwater Pollution:
List and describe PH (field -measured) : 6.18 @ 17.8 C
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2of2
SWU-242-112608

Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
Forguidanee on filling out thisfonn, please visor htln //h2o.encstate.nc.uti/su/fui ins Documents. III Ili isc forma
Permit No.: N/C/ S / o / o /o / 5 / 3 / 1 /
Facility Name: STI Polvmer
Countv: Lee
or Certificate of Coverage No.: N/C/G/_/_/_/_/_/_/
Inspector: Adam Daniel
Date of Inspection: 04 / 2 3
Time of Inspection: 1305
Total Event Precipitation (inches)
0.14
Phone No.
919) 777-5995
Was this a Representative Storm Event? (See information below) ® Yes ❑ No
Please check your permit to verif), if Qualitative Monitoring urns! be performed during a representative
storm event (requirements vary).
A "Representative Storm Event is a storm event that measures greater than 0.1 inches of rainfall and that
is preceded by at least 72 hours (3 days) in which no storm event measuring greater than 0.1 inches has
occurred. A single storm event may contain up to 10 consecutive hours of no precipitation.
By this signature, I certify that this report is accurate and complete to the best of my knowledge:
(Signature of Permittee or Designee)
1. Outfall Description:
Outfall No. 02 Structure (pipe, ditch, etc.) Culvert into ditch
Receiving Stream: Little Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area: None
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: N/A
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): N/A
Page I of 2
SWU-242-i 12608

E
4. Clarity: Choose the number which best describes the clarity of the discharge, where 1 is clear
and 5 is very cloudy:
N/A I 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of Floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with Floating solids:
N/A 1 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where I is no solids and 5 is extremely muddy:
N/A 1 2 3 4 5
7. Is there any foam in the stormwater discharge? N/A Yes No
8. Is there an oil sheen in the stormwater discharge? N/A Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No
10. Other Obvious Indicators of Stormwater Pollution:
List and describe No Discharge
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
SWU-242-112608

STORMWATER DISCHARGE OUTFALL (SDO)
Permit Number: NCS S000531 or
Certificate of Coverage Number: NCG
MONITORING REPORT
RECEIVED
NOV 2 7 2013
SAMPLES COLLECTEDDURINC$ Cr�1AbWV)U*!F:y2018
(This monitoring report shall be reccr lTE�FvWogp�p{ ester than 30 days from
the date the facility, receives the sampling results from the laboratory.)
FACILITY NAME STI Polymer COUNTY Lee
PERSON COLLECTING SAMPLE(S) Duncklee & Dunham. Lilv Walker PHONE NO. ( 919 ) 777-5995
CERTIFIED LABORATORY(S) ESC Lab Sciences Lab # ENV375
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PACE 2.
Part A: Specific Monitoring Requirements
Outfall
Date
50050
1.5
9.0
96
6-9
100
No.
Sample
Collected
Total
Flow (if app.)
Total
Rainfall
Styrene
Vinyl Acetate
Methyl
-methacrylate
pH
COD
mo/dd/ r
MC
inches
m L
m /L
m /L
m L
Benchmark
1.5
9.0
96
6-9
100
OF-01
11/12/18
0.18
<0.000307
0.00206
<0.0012
6.16
74.7
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? _ yes X no
(if yes, complete Part B)
rart is: vemcie
Outfall
ivramuenanvv
Date
hcuvnv ...............
50050
..., ...............,
00556
00530
00400
No.
Sample
Collected
Total Flow
(if applicable)
Total Rainfall
Oil & Grease
(if appl.)
Non -polar
O&G/TPH
Total
Suspended
pH
New Motor Oil
Usage
(Method 1664
Solids
SGT-HEM), if
appl.
mo/dd/yr
MG
inches
mgA
m /I
Units
Qal/mo
Form SWU-246. last revised 21212012
Pagel of 2

STORM EVENT CHARACTERISTICS:
Date 11/12/18
Total Event Precipitation (inches): 0.18
Event Duration (hours): (only if applicable — see permit.)
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
Mail Original and one copy to:
Division of Energy, Minerals, and Land Resources
Attn: Central Files
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
"1 certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
l l ILS )l q
(Signature of Permittee) (Date)
�z.zk
j s~ x
�• � u � �' � u cn• 4
`b ° 0 s
t
Form SWU-246, last revised 2/2/2012
Page 2 of 2

Environmental
Quality
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
I,orguidance onfilling oul lhisforni, please visit htips:Hdeq.iic.gov/about/divisions/energy-mineral-land-resources/
npdes-storm water-gps
Permit No.: N/C/ 0 / 0 / 0 / 5 / 3 / 3 / I / or Certificate of Coverage No.: N/C/G/ / / / / / /
Facility Name: STI Polymer
County: Lee
Inspector: Lily Walker
Date of Inspection: 1 L
Time of I
Total Event Precipitation (inches): 0.18"
Phone No.
All permits require qualitative monitoring to be performed during a `measurable storm event."
A "measurable storm event" is a storm event that results in an actual discharge from the permitted site
outfall. The previous measurable storm event must have been at least 72 hours prior. The 72-hour storm
interval does not apply if the permittee is able to document that a shorter interval is representative for
local storm events during the sampling period, and the permittee obtains approval from the local DEMLR
Regional Office.
By this signature, I certify that this report is accurate and complete to the best of my knowledge:
(Signature of Permittee or Designee)
1. Outfall Description:
Outfall No. OF-] Structure (pipe, ditch, etc.): plastic pipe to vegetated ditch
Receiving Stream:
Little Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area: bulk storage
and unloadine of raw chemicals, chemical ASTs, waste material pallets
Page I of 2
S W U-242, last modified 06/01 /2018

2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: light brown
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): No distinct odor
4. Clarity: Choose the number which best describes the clarity of the discharge, where I is clear
and 5 is very cloudy:
lO 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of Floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
lO 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where I is no solids and 5 is extremely muddy:
O 2 3 4 5
7. Is there any foam in the stormwater discharge? O Yes ® No.
8. Is there an oil sheen in the stormwater discharge? 0Yes QNo.
9. Is there evidence of erosion or deposition at the outfall? O Yes QNo.
10.. Other Obvious Indicators of Stormwater Pollution:
List and describe: oH: 6.16
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
swU-242, Last modified 06/01/2018

Environmental
Quality
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
Forguidance onfilling oat Ihisform, please visit Mips://deq.ne.gov/about/divisions/energy-mineral-land-resources/
n pd es -storm wale r-gps
Permit No.: N/C/ 0 / 0 / 0 / 5 / 3 / 3 / I / or Certificate of Coverage No.: N/C/G/ / / / / / /
Facility Name: STI
County: Lee
Inspector: Lily Wal
Date of Inspection:
Time of Inspection: 1225
Total Event Precipitation (inches): 0.18"
Phone No.
All permits require qualitative monitoring to be performed during a "measurable storm event."
A "measurable storm event' is a storm event that results in an actual discharge from the permitted site
outfall. The previous measurable storm event must have been at least 72 hours prior. The 72-hour storm
interval does not apply if the permittee is able to document that a shorter interval is representative f'or
local storm events during the sampling period, and the permittee obtains approval from the local DEMLR
Regional Office.
By this signature, I certify that this report is accurate and complete to the best of my knowledge:
(Signature of Permittee or Designee)
1. Outfall Description:
Outfall No. OF-j Ai Structure (pipe, ditch, etc.): concrete culvert to creek
Receiving Stream:
Little Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area: vehicle
Page I of 2
SW U-242, Last modified 06/01/2018

2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: medium brown
3. Odor: Describe any distinct odors that the discharge may have (i.e., shells strongly of oil, weak
chlorine odor, etc.): No distinct odor
4. Clarity: Choose the number which best describes the clarity of the discharge, where I is clear
and 5 is very cloudy:
O 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of Floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
O 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where I is no solids and 5 is extremely muddy:
O 2 3 4 5
7. Is there any foam in the stormwater discharge? O Yes Q No.
8. Is there an oil sheen in the stormwater discharge? oYes QNo.
9. Is there evidence of erosion or deposition at the outfall? o Yes 'QNo.
10. Other Obvious Indicators of Stormwater Pollution:
List and describe: very little flow, vegetation growing in pipe outlet area
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
SWU-242, Last modified 06/01/2018

STORMWATER DISCHARGE OUTFALL (SDO)
ANNUAL SUMMARY DATA MONITORING REPORT (DMR)
Calendar Year 2018_
Individual NPDES Permit No. NCS S000531 or
Certificate of Coverage (COC) No. NCG
This monitoring report summary of the calendar year is due to the DWQ Regional Office no later than March I" of the following year.
Facility Name: STI Polymer
County: Lee
Phone Number: ( 919 ) 77'
Total no. of SDOs monitored
Outfall No. _001_
Is this outfall currently in Tier 2 (monitored monthly)?
Was this outfall ever in Tier 2 (monitored monthly) during the past year?
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities?
Yes ❑ No
Yes ❑ No
Yes ❑ No
-
w ^'
„ _Total-.
Rainfall
inches
pH:- -:
� .
''(Standard
units)
r xy@.`+'u
Styrenea
m /L
_ .. '>(.•,9 )
,. x�
Vmyl Acetap
r mg/L
( )
Methyh'S
in- hl rylate
((mg/L), r,v
,COD"
9 )
°w
_._. r_..
_.. M.„ > •. ,,
Benchmark
N/A
6.0-9.0
1.5
9.0
96
100
Date Sample
Collected,
mmlddlyy
■--------
< 0.016
< 0.0012
39.9
04/23/18
0.14
6A 8
< 0.0031
11/12/18
0.18
6.16
<0.00031
0.0021
<0.0012
74.7
S WU-264-Generic-25May2010

I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
Signature
Date
Mail Annual DMR Summary Reports to:
DWQ Regional Office Contact Information:
'ASHEVILLE REGIONAL OFFICE
FAYETTEVILLE REGIONAL OFFICE
MOORESVILLE REGIONAL OFFICE
2090 US Highway 70
225 Green Street
610 East Center Avenue/Suite 301
Swannanoa, NC 28778
Systel Building Suite 714
Mooresville, NC 28115
[phone]
Fayetteville, NC 28301-5043
[phone]
910 433-3300
RALEIGH REGIONAL OFFICE
WASHINGTON REGIONAL OFFICE
iWILMINGTONREGIONAL OFFICE
3800 Barrett Drive
943 Washington Square Mall
127 Cardinal Drive Extension
Raleigh, NC 27609
Washington, NC 27889
Wilmington, NC 28405-2845
[phone]
[phone]
[phone]
WINSTON-SALEM REGIONAL OFFICE
CENTRAL OFFICE
1617 Mail Service Center
Raleigh, NC 27699-1617
585 Waughtown Street
Winston-Salem, NC 27107
/ V 'To preserve, protect
and enhance
[phone]
919 807-6300
North Carolina's %vater._."
S WU-264-Generic-25 May2010

RECEIVED
STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT DENR-LAND QUALITY
STORMWATER o201$Fp"1ITTIN^-
Permit Number: NCS S000531 or SAMPLES COLLECTED DURING CALENDAR YEAR:
Certificate of Coverage Number: NCG (This monitoring report shall be received by the Division no later than 30 days from
the date the facility receives the sampling results from the laboratory.)
FACILITY NAME STI Polymer COUNTY Lee
PERSON COLLECTING SAMPLE(S) Duncklee & Dunham. Lily Walker PHONE NO.( 919 ) 777-5995
CERTIFIED LABORATORY(S) ESC Lab Sciences Lab # ENV375 .
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 2.
Part A: Specific Monitoring Requirements
Outfall
Date
50050
1.5
9.0
96
6-9
100
No.
Sample
Collected- '
Total
Flow:(if app.)
.Total
Rainfall
Styrene -
.:...
Vinyl Acetate
Methyl
methacrylate.
.pH
COD
.
.
mo/dd/ r -
MG
•inches -
m L
m L" -
m /L
-
m L
Benchmark ...
_..
1.5
9.0
96
6 - 9,
100
OF-01
11/12/18
0.18
< 0.000307
0.00206
< 0.0012
6.16
74.7
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? _yes X no
(if yes, complete Part B)
Pa" R• Vehicle Maintenance Aefivitv Mnnitnrino Renuirements
Outfall,
Date.
50050
00556
00530
00400
No.
.Sample'
Total Flow -
Total Rainfall
Oil& Grease
'Non -polar -
Total ' "-
pH
New, Motor Oil
Collected
(if applicable)
(if appl.)
O&G/T'PH
Suspended
Usage
'
(Method 1664' :'Solids
SGT-HEM),if
-
"
mo/dd/ r
MG
-inches
mg/I
m
Units
al/mo
Form SWU-246, last revised 21212012
Page 1 of 2

STORM EVENT CHARACTERISTICS:
Date 11/12/18
Total Event Precipitation (inches): 0.18
Event Duration (hours): (only if applicable — see permit.)
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
Mail Original and one copy to:
Division of Energy, Minerals, and Land Resources
Attn: Central Files
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
(Signature of Permittee) (Date)
Form SWU-246, last revised 21212012
Page 2 of 2

Environmental
Quality
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
rorguidance onfrlling out this form, please visit https:Hdeq.nc.gov/about/divisions/energy-mineral-land-resources/
n pdes-storm wate r-gps
Permit No.: N/C/ 0 / 0 / 0 / 5 / 3 / 3 / I / or Certificate of Coverage No.: N/C/G/ / / / / / /
Facility Name: STI Polymer
County: Lee Phone No.
Inspector: Lily Walker
Date of Inspection: 11/12/2018
Time of Inspection: 1220
Total Event Precipitation (inches):
EM
All permits require qualitative monitoring to be performed during a "measurable storm event."
A "measurable storm event' is a storm event that results in an actual discharge from the permitted site
outfall. The previous measurable storm event must have been at least 72 hours prior. The 72-hour storm
interval does not apply if the permittee is able to document that a shorter interval is representative for
local storm events during the sampling period, and the permittee obtains approval from the local DEMLR
Regional Office.
By this signature, I certify that this report is accurate and complete to the best of my knowledge:
1k
(Signature of Permittee or Designee)
1. Outfall Description:
Outfall No. OF- I--_ Structure (pipe, ditch, etc.): plastic pipe to vegetated ditch
Receiving Stream:
Describe the industrial activities that occur within the outfall drainage area: bulk storage
and unloading of raw chemicals, chemical ASTs, waste material pallets
Page 1 of 2
S W U-242, Last modified 06/01 /2018

2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: light brown
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): No distinct odor
4. Clarity: Choose the number which best describes the clarity of the discharge, where I is clear
and 5 is very cloudy:
O 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where I is no solids and 5 is the surface covered with floating solids:
O 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where I is no solids and 5 is extremely muddy:
O 2 3 4 5
7. Is there any foam in the stormwater discharge? O Yes Q No.
8. Is there an oil sheen in the stormwater discharge? OYes QNo.
9. Is there evidence of erosion or deposition at the outfall? O Yes QNo.
10. Other Obvious Indicators of Stormwater Pollution:
List and describe: pH: 6,16
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
SWU-242, Last modified 06/01/2018

Environmental
Quality
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form, please visit https://deq.ne.gov/about/divisions/energy-mineral-land-resources/
npdes-slorm water-gps
Permit No.: N/C/ 0 / 0 / 0 / 5 / 3 / 3 / I / or Certificate of Coverage No.: N/C/G/ / / / / / /
Facility Name: STI Po
County: Lee
Inspector: L
Date of Inspection: 11/12/2018
Time of Inspection: 1225
Total Event Precipitation (inches): 0.18"
Phone No.
All permits require qualitative monitoring to be performed during a "measurable storm event."
A "measurable storm event' is a storm event that results in an actual discharge from the permitted site
outfall. The previous measurable storm event must have been at least 72 hours prior. The 72-hour storm
interval does not apply if the permittee is able to document that a shorter interval is representative for
local storm events during the sampling period, and the permittee obtains approval from the local DEMLR
Regional Office.
By this signature, I certify that this report is accurate and complete to the best of my knowledge:
(Signature of Permittee or Designee)
1. Outfall Description:
Outfall No._OF-3,,_ qi Structure (pipe, ditch, etc.): concrete culvert to creek
Receiving Stream:
Little Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area: vehicle
parking
Page I of 2
S W U-242, Last modified 06/01 /2018

N
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: medium brown
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): No distinct odor
4. Clarity: Choose the number which best describes the clarity of the discharge, where I is clear
and 5 is very cloudy:
O 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where I is no solids and 5 is the surface covered with Floating solids:
O 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where I is no solids and 5 is extremely muddy:
O 2 3 4 5
7. Is there any foam in the stormwater discharge? O Yes Q No.
8. Is there an oil sheen in the stormwater discharge? 0Yes QNo.
9. Is there evidence of erosion or deposition at the outfall? O Yes QNo.
10. Other Obvious Indicators of Stormwater Pollution:
List and describe: very little flow, vegetation growing in pine outlet area
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
SWU-242, Last modified 06/01/2018

STORMWATER DISCHARGE OUTFALL (SDO)
ANNUAL SUMMARY DATA MONITORING REPORT (DMR)
Calendar Year 2018_
Individual NPDES Permit No. NCS S000531 or
Certificate of Coverage (COC) No. NCG
This monitoring report summary of the calendar year is due to the DWQ Regional Office no later than March 1" of the following year.
Facility Name: STI Polymer
County: Lee
Phone Number: ( 919 ) 77
Total no. of SDOs monitored
Outfall No. _001_
Is this outfall currently in Tier 2 (monitored monthly)? Yes ❑ No
Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes ❑ No
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities? Yes ❑ No
Parameter,`. units
Total
Rainfall,
pH.-
(Standard
Styrene
Vinyl Acetate
Methyl;
methac late,
ry.
COD
inches
units)
(mg/G)
(mg/L)
(mg/Li
(mg/L)
_
Benchmark
N/A
6.0-9.0
1.5
9.0
96
100
Date Sample
Collected,WV
mm/dd/yy
Y
04/23/18
0.14
6.18
< 0.0031
< 0.016
< 0.0012
39.9
11/12/18
0.18
6.16
<0.00031
0.0021
<0.0012
74.7
S WU-264-Generic-25May2010

" I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
Signature
Date
Mail Annual DMR Summary Reports to:
DWQ Regional Office Contact Information:
ASH EVILLUREGIONAL OFFICE
FAV,ETTEVILLE�REGIONAL OFFICE
MOORE_SVIL_LE-REGIONAL OFFICE
2090 US Highway 70
225 Green Street
I 610 East Center Avenue/Suite 301
Swannanoa, NC 28778
Systel Building Suite 714
Mooresville. NC 281 15
[phone]
Fayetteville, NC 28301-5043
[phone]
910 433-3300
RALEIGH- REGIONAL ;OFFICE
WASHUIGTONREGIONALOFFICE
WILMINGTON.REGIONALOFFICE
3800 Barrett Drive
943 Washington Square Mall
127 Cardinal Drive Extension
Raleigh, NC 27609
Washington. NC 27889
Wilmington, NC 28405-2845
[phone]
(252) 946-648 1
[phone]
,WINSTON-SALEM,REGIONAL;OFFICE
CENT_ RAL OFFICE
585 Waughtown Street
Winston-Salem. NC 27107
1617 Mail Service Center To preserve, protect
Raleigh. NC 27699-1617 and enhance
336 771-5000
919 807-6300 _ _ _LW Noflh'Carohna'swater...^
S WU-264-Generic-25May2010

STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
Permit Number: NCS S000531 or SAMPLES COLLECTED DURING CALENDAR YEAR: 2015
Certificate of Coverage Number: NCG (This monitoring report shall be received by the Division no later than 30 days from
the date the facility receives the sampling results from the laboratory.)
FACILITY NAME STI Polymer COUNTY Lee
PERSON COLLECTING SAMPLE(S) Kevin Kelt PHONE NO.( 919 ) 777-5995
CERTIFIED LABORATORY(S) Environmental Science Corporation Lab # ENV375
Lab #
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 2.
Part A: Specific Monitoring Requirements
Outfall
Date
50050
1.5
9.0
96
6-9
100
No.
Sample
Collected
Total
Flow (if app.)
Total
Rainfall
Styrene
Vinyl Acetate
Methyl
methacrylate
pH
COD
mo/dd/ r
MG
inches
m L
m
m L
m L
Benchmark
1.5
9.0
96
6-9
100
01
09/25/15
1.42
< 0.00031
0.00458
< 0.00012
6.60
19.6
I
I
HI
I -
I
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month?_ yes X no
(if yes, complete Part B)
Part B: Vehicle Maintenance Activitv Monitoring Requirements
NOV 18 2015
DFnio
Outfall
Date
50050
00556
00530
00400
STQRMIntnr;;:
No.
Sample
Total Flow
Total Rainfall
Oil & Grease
Non -polar
Total
pH
New Motor Oil'
Collected
(if applicable)
(if appl.)
O&G/TPH
Suspended
Usage
(Method 1664
Solids
SGT-HEM), if
appl.
mo/dd/ yr
MG
inches
m
mgn
Units
gaurno
QUALITY
)ERMITTING
Form SWU-246, last revised 21212012
Page 1 of 2

STORM EVENT CHARACTERISTICS:
Date 09-25-15
Total Event Precipitation (inches): 1.42
Event Duration (hours): _2_ (only if applicable — see permit.)
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
Mail Original and one copy to:
Division of Energy, Minerals, and Land Resources
Attn: Central Files
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possibil* of fines and imprisonment for knowing violations."
� 7/ [L4l
(S tur of Permittee) (Date)
Form SWU-246, last revised 21212012
Page 2 of 2

' STORMWATER DISCHARGE OUTFALL (SDO) RECEIVED
MONITORING REPORT JUN 3 0 2015
Permit Number: NCS S000531 or SAMPLES COLLECTED DURING CALEN V'kXWQ 201L 1Ty
Certificate of Coverage Number: NCG (This monitoring report shall be received by t e !VVWi48d-IWTijh"ayn-30 days fqg,"
the date the facility receives the sampling results from the laboratory.)
FACILITY NAME STI Polymer COUNTY Lee
E d R d k PHONE NO 919 777 5995
PERSON COLLECTING SAMPL (S) An rew o a . ( I -
CERTIFIED LABORATORY(S) Environmental Science Corporation Lab # ENV375
Lab #
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 2.
Part A: Specific Monitoring Requirements
ci
O
�0
M14
Outfall
Date
50050
1.5
9.0
.96
6-9
100
No.
Sample
Collected
Total
Flow (if app.)
Total
Rainfall
Styrene
Vinyl Acetate
Methyl
methacrylate
pH
COD
mo/dd/ r
MG
inches
m
m L
m
mg/I,
01
NO FLOW
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? _ yes X no
(if yes, complete Part B)
Part B: Vehicle Maintenance Activitv Monitoring Requirements
Outfall
Date
50050
00556
00530
00400
No.
Sample
Total Flow
Total Rainfall
Oil & Grease
Non -polar
Total
pH
New Motor Oil
Collected
(if applicable)
(if appl.)
O&G/TPH
Suspended
Usage
(Method 1664
Solids
SGT-HEM), if
a 1.
mo/dd/ r
MG
inches
mg/1
m /I
Units
gaUmo
Form SWU-246, last revised 21212012
Page l of 2

STORM EVENT CHARACTERISTICS:
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable— see permit.)
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable —see permit.)
Mail Original and one copy to:
Division of Energy, Minerals, and Land Resources
Attn: Central Files
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possibili of fines and imprisonment for knowing violations." /
e ,
(Signaturj of Permittee) (Date)
Form SWU-246, last revised 21212012
Page 2 of 2

STORMWATER DISCHARGE OUTFALL (SDO) R ECE V " EL./
MONITORING REPORT J V 1IN 3 0 2015
Permit Number: NCS S000531 or SAMPLES COLLECTED DURING CALENDAR[39WM;k9WAL1TY
Certificate of Coverage Number: NCG (This monitoring report shall be received by th��iRslolt$�$k t'�0 days from
the date the facility receives the sampling results from the laboratory.)
FACILITY NAME STI Polymer COUNTY Lee
PERSON COLLECTING SAMPLE(S) Andrew Rodak PHONE NO. ( 919 ) 777-5995
CERTIFIED LABORATORY(S) Environmental Science Corporation Lab # ENV375
Part A: Specific Monitoring Requirements
Lab #
SIGNATURE OF PERMITTEE OR DE;77;7---]
REQUIRED ON PAGE 2.
Outfall
Date
50050
1.5
9.0
96
6-9
100
No.
Sample
Collected
Total
Flow (if app.)
Total
Rainfall
Styrene
Vinyl Acetate
Methyl i
methacrylate
pH
COD
mo/dd/ r
MG
inches
m
m
m
m gfL
01
NO FLOW
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month?_ yes X no
(if yes, complete Part B)
Part B: Vehicle Maintenance Activitv Monitorine Reouirements
Outfall
Date
50050
00556
00530
00400
No.
Sample
Total Flow
Total Rainfall
Oil & Grease
Non -polar
Total
pH
New Motor Oil
Collected
(if applicable)
(if appl.)
O&G/TPH
Suspended
Usage
(Method 1664
Solids
SGT-HEM), if
appl.
mo/dd/yr
MG
inches
m
m
Units
al/mo
Form SWU-246, last revised 21212012
Pagel of 2

STORM EVENT CHARACTERISTICS:
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable —see permit.)
Mail Original and one copy to:
Division of Energy, Minerals, and land Resources
Attn: Central Files
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possibili of fines and imprisonment for knowing violations."
(Signatur of Permittee) (Date)
a'
Form SWU-246, last revised 21212012
Page 2 of 2

STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT EC 0 5 ZU1h
Permit Number: NCS S000531 > or SAMPLES COLLECTED DURING CALENDAR YEAR.11 2 IFFi. F/IFS
Certificate of Coverage Number: NCG (This monitoring report shall be received by the Division no ]at" thaTi/3 �4bays from
the date the facility receives the sampling results from the laboratory.)
FACILITY NAME STI Polymer COUNTY Lee
PERSON COLLECTING SAMPLE(S) Danny Mays PHONE NO.( 919 ) 777-5995
CERTIFIEDLABORATORV(S) Environmental Science Corporation Lab# ENV375
Lab #
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 2.
Part A: Specific Monitoring Requirements
Outfall
Date
50050
1.5
9.0
96
6-9
100
No.
Sample
Collected
Total
Flow (if app.)
Total
Rainfall
Styrene
Vinyl Acetate
Methyl
methacrylate
pH
COD
mo/dd/yr
MG
inches
m L
m /L
m L
m L
Benchmark
1.5
9.0
96
6-9
100
01
11/14/16
0.27
< 0.000307
< 0.00163
< 0.0012
7.27
34.1
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? _ yes X no
(if yes. complete Part B)
Outfall
Date
50050
00556
00530
00400
No.
Sample
Total Flow
Total Rainfall
Oil & Grease
Non -polar
Total
pH
New Motor Oil
Collected
(if applicable)
(if appl.)
O&G/TPH
Suspended
Usage
(Method 1664
Solids
SGT-HEM), if
a 1.
mo/dd/vr
MG
inches
m I
mg/1
Units
al/mo
Forth SWU-246. lust revised 21212012
Page I of 2

STORM EVENT CHARACTERISTICS:
Date 11-14-16
Total Event Precipitation (inches): 0.27
Event Duration (hours): 3 (only if applicable — see permit.)
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
Mail Original and one copy to:
NC DEQ
DWR Central Files
1617 Mail Service Center
Raleigh, NC 27699-1617
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. 1 am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
11, rn1CV11_ tI 1z1�
(Signature of Permittee) (Date)
Form SW U-246. last revised 21212012
Page 2 of 2

RECEIVED
DEC 0 5
CENTRAL FILE;
DWR $ECTIOr
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form, please visit: h>�://li2o.enr.state.ne.us/su/forms Documents.htm#miscfornts
Permit No.: N/C/ s / o / o /0 / 5 / 3 / 1 / or Certificate of Coverage No.: N/C/G/_/_/_/_/ /_/
Facility Name: STI Polymer
County: Lee Phone No. [phone]
Inspector: Danny Mays
Date of Inspection: 11 / 14 / 16
Time of Inspection: 10 : 45
Total Event Precipitation (inches): 0.27
Was this a Representative Storm Event? (See information below) ® Yes ❑ No
Please check your permit to verify if Qualitative Monitoring must be performed during a representative
storm event (requirements vary).
A "Representative Storm Event" is a storm event that measures greater than 0 1 inches of rainfall and that
is preceded by at least 72 hours (3 days) in which no storm event measuring greater than 0.1 inches has
occurred. A single storm event may contain up to 10 consecutive hours of no precipitation.
By this signature, I certify that this report is accurate and complete to the best of my knowledge:
Qv�Nl
(Signature of Permittee or Designee)
Outfall Description:
Outfall No. 02 Structure (pipe, ditch, etc.) Culvert into ditch
Receiving Stream: Little Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area: None
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: Brown color, light tint
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): No distinctive odor
Page 1 of 2
S W U-242-1 12608

4. Clarity: Choose the number which best describes the clarity of the discharge, where I is clear
and 5 is very cloudy:
1 2 0 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where I is no solids and 5 is the surface covered with floating solids:
1 O 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where I is no solids and 5 is extremely muddy:
1 2 O 4 5
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No
I.O. Other Obvious Indicators of Stormwater Pollution:
List and describe pH=6.72
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
SWU-242-112608

a
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this fonn, please visit: httn://ti2o.enr.state.nc.us/su/Forms Documents.htmitmiscfo-ms
Permit No.: N/C/ S/ o / o /o / 5 / 3 / i / or Certificate of Coverage No.: N/C/G/_/_/_/_/_/_/
Facility Name: STI Po IT
County: Lee Phone No. [phone]
Inspector: Danny Mays
Date of Inspection: 11 f 14 / 16
Time of Inspection: 10 : 00
Total Event Precipitation (inches)
0.27
Was this a Representative Storm Event? (See information below) ® Yes ❑ No
Please check your permit to verify if Qualitative Monitoring must be perfonned during a representative
storm event (requirements vary).
A Representative Storm Event" is a storm event that measures greater than 0.1 inches of rainfall and that
is preceded by at least 72 hours (3 days) in which no storm event measuring greater than 0.1 inches has
occurred. A single storm event may contain up to 10 consecutive hours of no precipitation.
By this signature, I certify that this report is accurate and complete to the best of my knowledge:
(Signature of Permittee or Designee)
1. Outfall Description:
Cutfall No. 01 Structure (pipe, ditch, etc.) Culvert into ditch
Receiving Stream: Little Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area: Bulk storage and
loadinct of raw materials (chemical ASTs) and some waste material
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: No color light tint
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): No distinctive odor
Page I of 2
SWU-242-112608

4. Clarity: Choose the number which best describes the clarity of the discharge, where I is clear
and 5 is very cloudy:
1 0 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where I is no solids and 5 is the surface covered with floating solids:
1 02 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where I is no solids and 5 is extremely muddy:
I 0 3 4 5
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? es No
some erosion noted in the area east of the outfall
10. Other Obvious Indicators of Stormwater Pollution:
List and describe pH: 7.27
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
S W U-242-1 12608

STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT k/e
Permit Number: NCS S000531 or SAMPLES COLLECTED DURING CALENDAR YEAR: 20
Certificate of Coverage Number: NCG p �f�wED(This monitoring report shall be received by the Division no 1 er n 30 days from
V the date the facility receives the sampling results from the labor )
31 2010
FACILITY NAME STI Polymer MAY COUNTY Lee
PERSON COLLECTING SAMPLE(S) Kevin Kelt CEI&RALMM NO. (919 ) 777-5995
CERTIFIED LABORATORY(S) Environmental Scienceh tmaratfOIDN Lab # ENV375
Lab #
SIGNATURE OF PERMITTEE OR DESIGNEE
REOUIRED ON PAGE 2.
S.
Part A: Specific Monitoring Requirements
Outfall
Date
50050
1.5
9.0
96
6-9
100
No.
Sample
Collected
Total
Flow (if app.)
Total
Rainfall
Styrene
Vinvl Acetate
Methyl
methacrylate
pH
COD
mo/dd/vr '—
MG
inches
mgfL
m
m
m L
Benchmark
1.5
9.0
96
6-9
100
O1
04/01/16
0.12
< 0.000307
< 0.00163
< 0.0012
7.03
24.0
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month?_ yes X no
(if yes, complete Part B)
D� Q. V..6:..1.. M..:...... — AM:.Aw NA-4.einn Ran uiramwnfc
Outfall
50050
00556
00530
00400
No.
mple
Total Flow
Total Rainfall
Oil & Grease
Non -polar
Total
pH
New Motor Oil
lected
(if applicable)
(if appl.)
O&G/TPH
Suspended
Usage
(Method 1664
Solids
[Date
SGT-HEM), if
/dd/vr
MG
inches
m
mg/1
Units
gaumo
Form SWU-246, last revised 21212012
Page 1 of 2

STORM EVENT CHARACTERISTICS:
Date 04-01-16
Total Event Precipitation (inches): 0.12
Event Duration (hours): I (only if applicable — see permit.)
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
Mail Original and one copy to:
Division of Energy, Minerals, and Land Resources
Attn: Central Files
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
(Signature of
er 'ttee) (Date)
Form SWU-246, last revised 21212012
Page 2 of 2

Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form, please visit: htln:/fh2o.enr.stale.nc.us/su/Forms Documents.htm#miscforms
Permit No.: N/C/ S/ o to /o / 5 / 3/ 1 / or Certificate of Coverage No.: N/C/G/_/_/_/_/_/_/
Facility Name: STI PZymer
County: Lee Phone No. [phone]
Inspector: Kevin Kelt
Date of Inspection: 04 / 01 / 16
Time of Inspection: 12 : 15
Total Event Precipitation (inches): 0.12
Was this a Representative Storm Event? (See information below) ® Yes ❑ No
Please check your permit to verify if Qualitative Monitoring must be performed during a representative
star event (requirements vary).
A "Representative Storm Event" is a storm event that measures greater than 0.1 inches of rainfall and that
is preceded by at least 72 hours (3 days) in which no storm event measuring greater than 0.1 inches has
occurred. A single storm event may contain up to 10 consecutive hours of no precipitation.
By this signature, I certify that this report is accurate and complete to the best of my knowledge:
j--
(Signature of Pknitlhp or Designee)
1. Outfall Description:
Outfall No. 02 Structure (pipe, ditch, etc.) Culvert into ditch
Receiving Stream: Little Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area: None
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: Brown color, lmedium tint
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): No distinctive odor
Page I of 2
SWU-242-112608

4. Clarity: Choose the number which best describes the clarity of the discharge, where I is clear
and 5 is very cloudy:
I 2 3 4 SO
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
I 0 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where I is no solids and 5 is extremely muddy:
1 2 30 5
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No
10. Other Obvious Indicators of Stormwater Pollution:
List and describe Px=6.45
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
SWU-242-112608

a
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this fonn, please visit: http,//h2o.enr.state.nc.us/su/Fornis Documents,hunitmiscforms
Permit No.: N/C/ S/ 0 / 0 /o / 5 / 3 / 1 / or Certificate of Coverage No.: N/C/G/_/_/_/_/_/_/
Facility Name: STI PZymer
County: Lee Phone No. [phone]
Inspector: Kevin Kelt
Date of Inspection: 04 / 01 / 16
Time of Inspection: 11 : 50
Total Event Precipitation (inches):
Was this a Representative Storm Event? (See information below) ® Yes ❑ No
Please check your permit to verify if Qualitative Monitoring must be performed during a representative
storm event (requirements vary).
----------------- ----------- ........
---
A "Representative Storm Event' is a storm event that measures greater than 0.1 inches of rainfall and that
Is preceded by at least 72 hours (3 days) in which no storm event measuring greater than 0.1 inches has
occurred A single storm event may contain up to 10 consecutive hours of no precipitation.
By this signature, I certify that this report is accurate and complete to the best of my knowledge:
S1 ti
(Signature of Peiinitee or Designee)
1. Outfall Description:
Outfall No. 01 Structure (pipe, ditch, etc.) Culvert into ditch
Receiving Stream: Little Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area: Bulk storage and
loading of raw materials (chemical ASTs) and some waste material
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: No color. light ghtint
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): No distinctive odor
Page I of 2
SWU-242-112609

4. Clarity: Choose the number which best describes the clarity of the discharge, where 1 is clear
and 5 is very cloudy:
l0 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
1 02 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where I is no solids and 5 is extremely muddy:
I O 3 4 5
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? es No
some erosion noted in the area east of the outfall
10. Other Obvious Indicators of Stormwater Pollution:
List and describe PH: 7.03
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
5 W U-242-1 12608

STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
Permit Number: NCS S000531 or
Certificate of Coverage Number: NCG
SAMPLES COLLECTED DURING CALENDAR YEAR: 2015
(This monitoring report shall be received by the Division no later than 30 days from
the date the facility receives the sampling results from the laboratory.)
FACILITY NAME STI Polymer COUNTY Lee
PERSON COLLECTING SAMPLE(S) Kevin Kelt PHONE NO.( 919 ) 777-5995
CERTIFIED LABORATORY(S) Environmental Science Corporation Lab # ENV375
Lab #
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE_ 2.
Part A: Specific Monitoring Requirements
Outfall
Date
50050
1.5
9.0
96
6-9
100
No.
Sample
Collected
Total
Flow (if app.)
Total
Rainfall
Styrene
Vinyl Acetate
Methyl
methacrylate
pH
COD
mo/dd/ r
MG
inches
m
mgfL
m
m
Benchmark
1.5
9.0
96
6-9
100
01
09/25/15
1.42
< 0.00031
0.00458
< 0.00012
6.60
19.6
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month?_ yes X no
(if yes, complete Part B)
Part B: Vehicle Maintenance Activity Monitoring Requirements
Outfall
Date
50050
00556
00530
00400
'C
No.
Sample
Total Flow
Total Rainfall
Oil & Grease
Non -polar
Total
pH
New Motor Oil
Collected
(if applicable)
(if appl.)
O&G/TPH
Suspended
Usage
(Method 1664
Solids
SGT-HEM), if
appl.
mo/dd/ r
MG
inches
MRA
m
Units
gallmo
Form SWU-246, last revised 21212012
Pagel of 2

STORM EVENT CHARACTERISTICS:
Date 09-25-15
Total Event Precipitation (inches): 1.42
Event Duration (hours): _2 (only if applicable — see permit.)
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
Mail Original and one copy to:
Division of Energy, Minerals, and Land Resources
Attn: Central Files
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possibiljiy of fines and imprisonment for knowing violations."
(S ffi tur of Permittee) (Date)
Form SWU-246, last revised 21212012
Page 2 of 2

a
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form, please visit: http:/lh2o.enr.state.nc.us/su/Forms Documents htm#miscforms
Permit No.: N_/C/s/o/0/o /5/3/l/
Facility Name: STI Polymer
County: Lee
Inspector: Kevin Kelt
Date of Inspection: 0 9 /2
Time of Inspection: 1530
Total Event Precipitation (inches):
or Certificate of Coverage No.:
1.42
No. (919) 777-
Was this a Representative Storm Event? (See information below) ® Yes ❑ No
Please check your permit to verify if Qualitative Monitoring must be performed during a representative
storm event (requirements vary).
A "Representative Storm Event' is a storm event that measures greater than 0.1 inches of rainfall and that
is preceded by at least 72 hours (3 days) in which no storm event measuring greater than 0.1 inches has
occurred. A single storm event may contain up to 10 consecutive hours of no precipitation.
By this signature, I certify -that this report is accurate and complete to the best of my knowledge:
Permittee or Designee)
1. Outfall Description:
Outfall No. 01 Structure (pipe, ditch, etc.) Culvert into ditch
Receiving Stream: Little Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area: Bulk storage and
loading of raw materials (chemical ASTs) and some waste material
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: No col or . light tint
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): No distinctive odor
Page I of 2
S WU-242-112608

n
4. Clarity: Choose the number which best describes the clarity of the discharge, where 1 is clear
and 5 is very cloudy:
1 02 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
1 02 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where 1 is no solids and 5 is extremely muddy:
I 02 3 4 5
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? es No
some erosion noted in the area east of the outfall
10. Other Obvious Indicators of Stormwater Pollution:
List and describe PH: 6.60
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition maybe
indicative of pollutant exposure. These conditions warrant further investigation.
SWU-242-112608
Page 2 of 2

a
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form, please visit: httn://h2o.enr.state.ne.us/su/Forms Documents htm#miscforms
Permit No.: N/C/ s/ 0/0 /0 / 5 / 3 / 1 / or Certificate of Coverage No.:
Facility Name: STI Po rner
County: Lee Phone No. [phone]
Inspector: Kevin Kelt
Date of Inspection:
Time of Inspection:
1545
Total Event Precipitation (inches): 1.42
Was this a Representative Storm Event? (See information below) R Yes ❑ No
Please check your permit to verify if Qualitative Monitoring must be performed during a representative
storm event (requirements vary).
A "Representative Storm Event" is a storm event that measures greater than 0.1 inches of rainfall and that
is preceded by at least 72 hours (3 days) in which no storm event measuring greater than O.I inches has
-occurred. A single storm event may contain up to 10 consecutive hours of no precipitation.
By this signature, 1 certify that this reporlJis accurate and complete to the best of my knowledge:
(Signature of P,66rmittee or Designee)
1. Outfall Description:
Outfall No. 02 Structure (pipe, ditch, etc.) Culvert into ditch
Receiving Stream: Little Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area: None
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: No col or 1 ight t- i nt-
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): No distinctive odor
Page I of 2
SWU-242-112608

4. Clarity: Choose the number which best describes the clarity of the discharge, where I is clear
and 5 is very cloudy:
0
2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
Ol 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where 1 is no solids and 5 is extremely muddy:
Ol 2 3 4 5
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No
10. Other Obvious Indicators of Stormwater Pollution:
List and describe
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
SWU-242-112608

STORMWATER DISCHARGE OUTFALL (SDO)
ANNUAL SUMMARY DATA MONITORING REPORT (DMR)
Calendar Year 2015
Individual NPDES Permit No. NCS S000531 or
Certificate of Coverage (COC) No. NCG
This monitoring report summary of the calendar year is due to the DWQ Regional Office no later than March 1" of the following year.
Facility Name: STI Polymer
County: Lee
Phone Number: ( 919 1 77'
Total no. of SDOs monitored 1
Outfall No. _001_
Is this outfall currently in Tier 2 (monitored monthly)?
Was this outfall ever in Tier 2 (monitored monthly) -during the past year?
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities?
Yes ❑ No
Yes ❑ No
Yes ❑ No
Parameter, units
Total
Rainfall,
inches
pH
(Standard
units)
Styrene
(mg/L)
Vinyl Acetate
(mg/L)
Methyl
methacrylate
(mg/L)
COD
(mg/L)
Benchmark
N/A
6.0-9.0
1.5
9.0
96
100
Date Sample
Collected,
mm/dd/yy
05/31/15
No discharge recorded
09/25/15
1.42
6.60
<0.00031
0.00458
<0.00012
19.6
S W U-264-Generic-25May2010

"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the poss" of firs 4nd)prisonmer�Vor knowing violations."
Signature
Date i(//
Mail Annual DMR Summary Reports to:
DWQ Regional Office Contact Information:
ASHEVILLE REGIONAOFFICE
L
FAYETTEVILLE REGIONAL OFFICE
T
MOORESVILLE REGIONAL OFFICE j
2090 US Highway 70 1
225 Green Street
I
610 East Center Avenue/Suite 301
Swannanoa, NC 28778
Systel Building Suite 714
Mooresville, NC 28115
[phone]
Fayetteville, NC 28301-5043
[phone]
_....------------_-- — — — '—
-- 433.3300
RALEIGH REGIONAL OFFICE !
.._._..__.(910)
WASHINGTON REGIONAL OFFICE j
_
WILMINGTON REGIONAL OFFICE
3800 Barrett Drive
943 Washington Square Mall
;
127 Cardinal Drive Extension
Raleigh, NC 27609
Washington, NC 27889
Wilmington, NC 28405-2845
[phone]
---.. _.--- ---...._....-.------
[phone]
[phone]
-._..._--- - C-.__
WINSTON-SALEM REGIONAL OFFICE i
_._ .IC1._
CENTRAL OFFICE
585 Waughtown Street j
Winston-Salem, NC 27107
1617 Mail Service Center
Raleigh, NC 27699-1617
(—=spreserve, protect
andenhance
[phone]
919 807-6300��
NciYh Ca.+otina's avatar..."
S W U-264-Generic-25May2010

Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form, please visit: http://h2o.enr.state.nc.us/su/Forms Documents.htm#miseforms
PermitNo.: N/C/s/0/0/0 /5/3/l/
Facility Name: STI Po mer
County: Lee
Inspector: Kevin Kelt
Date of Inspection: n 9 / 2 5 / 15
Time of Inspection: 1545
Total Event Precipitation (inches):
or Certificate of Coverage No.: N/C/G/_/_/_/_/_/_/
1.42
No.
919) 777-5995
Was this a Representative Storm Event? (See information below) ® Yes ❑ No
Please check your permit to verify if Qualitative Monitoring must be performed during a representative
storm event (requirements vary).
A "Representative Storm Event' is a storm event that measures greater than 0.1 inches of rainfall and that
is preceded by at least 72 hours (3 days) in which no storm event measuring greater than 0.1 inches has
occurred. A single storm event may contain up to 10 consecutive hours of no precipitation.
By this signature, I certify that this repT-�is accurate and complete to the best of my knowledge:
(Signature of P/rmittee or Designee)
1. Outfall Description:
Outfall No. 02 Structure (pipe, ditch, etc.) Culvert into ditch
Receiving Stream: Little Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area: None
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: No rnl nr, 1 i ght t i nt
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): No distinctive odor
Page 1 of 2
S W U-242-1 12608

4. Clarity: Choose the number which best describes the clarity of the discharge, where 1 is clear
and 5 is very cloudy:
0 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where I is no solids and 5 is the surface covered with floating solids:
0 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where I is no solids and 5 is extremely muddy:
0 2 3 4 5
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No
10. Other Obvious Indicators of Stormwater Pollution:
List and describe
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
SWU-242-112608

a
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this fonn, please visit: httu://h2o.enr.state.nc.us/su[Forms Documents.htm#miscfonns
Permit No.: N/C/ S / 0/0 /0 / 5 / 3 / 1 / or Certificate of Coverage No.: N/C/G/_/_/_/_/_/_/
Facility Name: STI Polymer
County: Lee Phone No. [phone]
Inspector: Kevin Kelt
Date of Inspection: 0 9 / 2 5 / 15
Time of Inspection: 1530
Total Event Precipitation (inches):
1.42
Was this a Representative Storm Event? (See information below) ® Yes ❑ No
Please check your permit to verify if Qualitative Monitoring must he performed during a representative
storm event (requirements vary).
---- _...... ----
A _.
A "Representative Storm Event" is a storm event that measures greater than 0.1 inches of rainfall and that
is preceded by at least 72 hours (3 days) in which no storm event measuring greater than 0.1 inches has
occurred. A single storm event may contain up to 10 consecutive hours of no precipitation.
By this signature, I certify -that this report is accurate and complete to the best of my knowledge:
Permittee or Designee)
1. Outfall Description:
Outfall No. 01 Structure (pipe, ditch, etc.) Culvert into ditch
Receiving Stream:
Little Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area: Bulk storage and
loading of raw materials (chemical ASTs) and some waste material
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: No rol or, 1 i 5ajr t- in r
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): No distinctive odor
Page I of 2
S W U-242-112608

4. Clarity: Choose the number which best describes the clarity of the discharge, where 1 is clear
and 5 is very cloudy:
1 OZ 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
1 02 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where I is no solids and 5 is extremely muddy:
1 02 3 4 5
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? es No
some erosion noted in the area east of the outfall
10. Other Obvious Indicators of Stormwater Pollution:
List and describe PH: 6.60
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition maybe
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
S W U-242-112608

STORMWATER DISCHARGE OUTFALL (SDO)
ANNUAL SUMMARY DATA MONITORING REPORT (DMR)
Calendar Year 2015
Individual NPDES Permit No. NCS S000531 or
Certificate of Coverage (COC) No. NCG
This monitoring report summary of the calendar year is due to the DWQ Regional Office no later than March 1" of the following year.
Facility Name: STI Polymer
County: Lee
Phone Number: ( 919 ) 777-5995 Total no. of SDOs monitored
Outfall No. 001
Is this outfall currently in Tier 2 (monitored monthly)? Yes ❑ No
Was this outfall ever in Tier 2 (monitored monthly).during the past year? Yes ❑ No
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities? Yes ❑ No
Parameter, units
Total
Rainfall,
inches
P H
(Standard
units)
Styrene
(mg/L)
Vinyl Acetate
(mg/L)
Methyl
methac late
rY
(mg/L)
COD
(mg/L)
Benchmark
N/A
6.0-9.0
1.5
9.0
96
100
Date Sample
Collected,
mm/dd/yy
05/31/15
No discharge recorded
09/25/15
1.42
6.60
<0.00031
0.00458
<0.00012
19.6
S W U-264-Generic-25May2010

"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possi4i% of
Signature
Date W1
DWQ Reaional Office Contact Information:
ASHEVILLE REGIONAL OF]
2090 US Highway 70
Swannanoa, NC 28778
[phone]
SIGH REGIONAL OFI
80 30 BarrettDrive
Raleigh, NC 27609
[phone]
585 Waughtown Street
Winston-Salem, NC 27107
[phone]
knowing violations."
Mail Annual DMR Summary Reports to:
225 Green Street
Systel Building Suite 714
Fayetteville, NC 28301-5043
[phone]
943 Washington Square Mall
Washington, NC 27889
[phone]
1617 Mail Service Center
Raleigh, NC 27699-1617
[phone]
610 East Center Avenue/Suite 301
Mooresville, NC 28115
[phone]
WILMINGTON REGIONAL OFFICE
127 Cardinal Drive Extension
Wilmington, NC 28405-2845
[phone]
To preserve, pro!ect
and enhance
Nonh Carolina's water.._"
S W U-264-Generic-25May2010

RECEIVED
STORMWATER DISCHARGE OUTFALL (SDO) DEC 21 2017
MONITORING REPORT
DENR-LAND QUALITY
Permit Number: NCS S000531 or SAMPLES COLLECTED DURING CAL§P&"tW-ERWTING
Certificate of Coverage Number: NCG (This monitoring report shall be received by the Division no later than 30 days from
the date the facility receives the sampling results from the laboratory.)
FACILITY NAME STI Polymer COUNTY Lee
PERSON COLLECTING SAMPLE(S) Andrew Rodak PHONE NO.( 919 ) 777-5995
CERTIFIED LABORATORY(S) ESC Lab Sciences Lab # ENV375
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 2.
Part A: Specific Monitoring Requirements
Outfall
Date
50050
1.5
9.0
96
6-9
100
No.
Sample
Collected
Total
Flow (if app.)
Total
Rainfall
Styrene
Vinyl Acetate
Methyl
methacrylate
pH
COD
mo/dd/vr
MG
inches
m L
m
m L
m L
Benchmark
1.5
9.0
96
6-9
100
01
12/6/17
0.22
<0.003
0.0017
<0.0012
6.06
14.0
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? _ yes X no
(if yes, complete Part B)
Part B• Vehicle Maintenance Activity Monitoring Requirements
Outfall
Date
50050
100556
00530
00400
No.
Sample
Total Flow
Total Rainfall
Oil & Grease
Non -polar
Total
pH
New Motor Oil
Collected
(if applicable)
(if appl.)
O&G/TPH
Suspended
Usage
(Method 1664
Solids
SGT-HEM), if
-
appl.
mo/dd/ r
MG
inches
m I
m /I
Units
al/mo
Form SWU-246, last revised 21212012
Page 1 of 2

STORM EVENT CHARACTERISTICS:
Date 12/06/17
Total Event Precipitation (inches): 0.22
Event Duration (hours): 6 (only if applicable — see permit.)
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
Mail Original and one copy to:
Division of Energy, Minerals, and Land Resources
Attn: Central Files
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
"1 certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. 1 am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
(Signature of Permittee) (Date)
Form SWU-246. last revised 21212012
'�0% Page 2of2

a
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
rorguidanceonfi/ling out thisfonn, please visit: httn://li2o.enr.statc.nc.us/su/Purms Dncumems.hunfilmi.aclbrms
Permit No.: N/C/ S/ 0 / 0 /0 / 5 / 3 / 1 /
Facility Name: STI Poo—Iymer
County: Lee
Inspector: Andrew Rodak
Date of Inspection: 12 / 0 6 / 17
Time of Inspection: 04 : 15
Total Event Precipitation (inches):
or Certificate of Coverage No.: N/C/G/_/_/_/_/_/_/
0.22
No. [phone]
Was this a Representative Storm Event? (See information below) ® Yes ❑ No
Please check your permit to verify if Qualitative Monitoring must he performed during a representative
storm event (requirements vary).
A "Representative Storm Event" is a storm event that measures greater than 0.1 inches of rainfall and that
is preceded by at least 72 hours (3 days) in which no storm event measuring greater than 0.1 inches has
occurred A single storm event may contain up to 10 consecutive hours of no precipitation.
By this signature, 1 certify that this report is accurate and complete to the best of my knowledge:
(Signature of Permittee or Designee)
1. Outfall Description:
Outfall No. 01 Structure (pipe, ditch, etc.) Culvert into ditch
Receiving Stream: Little Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area: Bulk storage and
loading of raw materials (chemical ASTs) and some waste material
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: No color light ght tint
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): No distinctive odor
Page I of 2
S W U-242-1 12608

4. Clarity: Choose the number which best describes the clarity of the discharge, where I is clear
and 5 is very cloudy:
OI 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where I is no solids and 5 is the surface covered with floating solids:
OI 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where 1 is no solids and 5 is extremely muddy:
OI 2 3 4 5
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No
10. Other Obvious Indicators of Stormwater Pollution:
List and describe pH: 6.06
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
S W U-242-1 12608

a
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form, please visit: liltD://li2o.enr.state.nc.us/su/I'vrms Doc a me nts. hHO In i sc forms
Permit No.: N/C/ S / 0 / 0 /0 / 5 / 3 / 1 / or Certificate of Coverage No.: N/C/G/_/_/_/_/_/_/
Facility Name: STI PZymer
County: Lee Phone No. [phone]
Inspector: Andrew Rodak
Date of Inspection: 0 5/ 2 2/ 17
Time of Inspection: 04 : 30
Total Event Precipitation (inches):
0.22
Was this a Representative Storm Event? (See information below) ® Yes ❑ No
Please check your pennit to verify if Qualitative Monitoring must be perforated during a representative
storm event (requirements vary).
......... ............. ....... ......
A "Representative Storm Event" is a storm event that measures greater than 0.1 inches of rainfall and that
is preceded by at least 72 hours (3 days) in which no storm event measuring greater than 0.1 inches has
occurred. A single storm event may contain up to 10 consecutive hours of no precipitation.
By this signature, I certify that this report is accurate and complete to the best of my knowledge:
(Signature of Permittee or Designee)
1. Outfall Description:
Outfall No. 02 Structure (pipe, ditch, etc.) Culvert into ditch
Receiving Stream: Little Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area: None
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: No discharge observed. Standing water had
color, light tint
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): No distinctive odor
Page I of 2
no
SWU-242-112608

4. Clarity: Choose the number which best describes the clarity of the discharge, where 1 is clear
and 5 is very cloudy:
10 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where I is no solids and 5 is the surface covered with floating solids:
I 20 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where I is no solids and 5 is extremely muddy:
I 20 3 4 5
7. Is there any foam in the stormwater discharge? Yes No
S. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No
10. Other Obvious Indicators of Stormwater Pollution:
List and describe
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
S W U-242-1 I2608

STORMWATER DISCHARGE OUTFALL (SDO)
ANNUAL SUMMARY DATA MONITORING REPORT (DMR)
Calendar Year 2017
Individual NPDES Permit No. NCS S000531 or
Certificate of Coverage (COC) No. NCG
RECEIVED
DEC 212017
STORMI,y.4TER OUALITY
PERMITTING
This monitoring report summary of the calendar year is due to the DWQ Regional Office no later than March 1" of the following year.
Facility Name: STI Polymer
County: Lee
Phone Number:( 919 ) 77
Total no. of SDOs monitored 1
Outfall No. _001_
Is this outfall currently in Tier 2 (monitored monthly)? Yes ❑ No
Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes ❑ No
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities? Yes ❑ No
Parameter, units
Total
Rainfall,
inches
pH
(Standard
units)
Styrene
(mg/L)
Vinyl Acetate
(mg/L)
Methyl
methacrylate
(mg/L)
COD
(mg/L)
Benchmark
N/A
6.0-9.0
1.5
9.0
96
100
Date Sample
Collected,
mm/dd/yy
Elm
NO
®®
26.9
El
ON
ON
05/22/17
0.42
6.96
< 0.001
< 0.01
< 0.05
12/06/17
0.22
6.0
<0.00031
0.0017
<0.0012
14.0
S WU-264-Generic-25 May2010

Additional Outfall Attachment
Outfall No.
Is this outfall currently in Tier 2 (monitored monthly)? Yes ❑ No ❑
Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes ❑ No ❑
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities? Yes ❑ No ❑
Parameter, (units)
----------
----------
----------
----------
----------
----------
----------
----------
----------
S WU-264-Generic-25May2010
t

" I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
Signature �J
Date 114—
Mail Annual DMR Summary Reports to:
DWQ Regional Office Contact Information:
ASHEVILLE REGIONAL OFFICE
FAYETTEVILLE_REGIONAL OFFICE
MOORESVILLE REGIONAL OFFICE
2090 US Highway 70
225 Green Street
610 East Center Avenue/Suite 301
Swannanoa, NC 28778
Systel Building Suite 714
Mooresville. NC 28115
[phone]
Fayetteville. NC 28301-5043
[phone]
[phone]
RALEIGH REGIONAL OFFICE
WASHINGTON REGIONAL OFFICE
WILMINGTON REGIONAL OFFICE
3800 Barrett Drive
943 Washington Square Mall
127 Cardinal Drive Extension
Raleigh. NC 27609
Washington, NC 27889
Wilmington, NC 28405-2845
[phone]
[phone]
[phone]
WINSTON-SALEM REGIONAL OFFICE
CENTRAL OFFICE
585 Waughtown Street
1617 Mail Service Center 7opreserve, protect
Winston-Salem, NC 27107
Raleigh, NC 27699-1617 and enhance
[phone]
[phone] North Carolina's water.." J
S WU-264-Generic-25May2010

STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
Permit Number: NCS S000531 or SAMPLES COLLECTED DURING CALENDAR YEAR: 2017
Certificate of Coverage Number: NCG (This monitoring report shall be received by the Division no later than 30 days from
the date the facility receives the sampling results from the laboratory.)
FACILITY NAME STI Polymer COUNTY Lee
PERSON COLLECTING SAMPLE(S) Danny Mays �S jo y��0° �PHONEPNO. ( 919 ) 777-5995
CERTIFIED LABORATORY(S) ESC Lab Sciences CERb`/f­ENV375
JUL 0 3 201/ SIGNATURE OF PERMITTEE OR DESIGNEE
CENTRAL FILES REQUIRED ON PAGE 2.
Part A: Specific Monitoring Requirements DWR SECTION
Outfall
Date
50050
1.5
9.0
96
6-9
100
No.
Sample
Collected
Total
Flow (if app.)
Total
Rainfall
Styrene
Vinyl Acetate
Methyl
methacrylate
pH
'COD
mo/dd/vr
MG
inches
m /L
m /L
m L
m L
Benchmark
1.5
9.0
96
6-9
100
01
5/22/17
0.42
<0.001
<0.01
<0.05
6.96
28.9
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month?_ yes X no
(if yes. complete Part B)
D...ti R.'ki h; In M..Inlnnanrn Arfivifv Mnnifnrino Rwm�iram Pnfc
......-.�...�.-..-_...--.._..-----_..._
Outfall
Date
50050
00556
00530
00400
No.
Sample
Total Flow
Total Rainfall
Oil & Grease
Non -polar
Total
pH
New Motor Oil
Collected
(if applicable)
(if appl.)
O&G/TPH
Suspended
-Usage
(Method 1664
Solids
SGT-HEM),if
a I.
mo/dd/vr
MG
inches
mg/1
m /I
Units
gaurno
Form S WU-246. last revised 21212012
Page 1 of 2

STORM EVENT CHARACTERISTICS:
Date 5/22/17
Total Event Precipitation (inches): 0.42
Event Duration (hours): _2 (only if applicable — see permit.)
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
Mail Original and one copy to:
Division of Energy, Minerals, and Land Resources
Attn: Central Files
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. 1 am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
Wy-x-�� Glagl/a-
(Signature ofPermittee) - (Date)
Form SWU-246, last revised 21212012
Page 2 of 2

Storniwater Discharge Outfall (SDO)
. Qualitative Monitoring Report
For guidance un filling nut thisjorrn, please riait: hurt'//h2o.enr.state.nc.us/su/Fonns Ducuments.htmgmiscfurms
Permit No.: N/C/ s/ 0 / 0 /o 15 / 3 / 1 / or Certificate of Coverage No.:
Facility Name: STI Polymer
Count),: —
Inspector:
Lee Phone No. [phone]
Date of Inspection:
Time of Inspection:
05/22/17
Total Event Precipitation (inches): 0.42
Was this a Representative Storm Event? (See information below) ® Yes ❑ No
Please check your permit to verijp if Qualitative Monitoring must be performed noting a represenlative
stornt event (requirements van').
A "Representative Stoi in Event' is a storm event that measures greater than 0.1 inches of rainfall and that
is preceded by at least 72 hours (3 (lays) in which no storm event measuring greater than 0.1 inches has
occurred. A single storm event may contain up to 10 consecutive hours of no precipitation.
By this sjgnature. I certify, that this report is accurate and complete to the best of my knowledge:
(Signature of Pernintee or Designee)
1. Outfall Description
Outfall No. 01 Structure (pipe, ditch, etc.) Culvert into ditch
Receiving Stream: Little Buffalo Creek
Describe the industrial activities that occur within the oulfall drainage area: Bulk storage and
loadinq of raw materials (chemical. ASTs) and some waste material
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium. dark) as descriptors: No col ors light- ght tint
3. Odor: Describe any distinct odors that the discharge may have (i.e.. smells strongly of oil. weak
chlorine odor, etc.): No distinctive odor
Page I ol'2
SNVU-242-112(A)8

4. Clarity: Choose the number which best describes the clarity of the discharge. where I is clear
and 5 is very cloudy:-
1 O 3 4 5
5. Floating Solids: Choose tltc mnnber which best describes the amount of floating solids in the
stormwater discharge, where I is no solids and 5 is the surface covered with floating solids:
I o2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where I is no solids and 5 is extremely muddy:
I Q 3 4 5
7. Is there any loam in the stormwater discharge? Yes No
S. Is thine an oil slicer in die stormwater discharge? Yes No
). Is there evidence of erosion or deposition at oinfall? e
No
sonic erosion noted in the area east of the outfall
III. Other Obvious Indicators of Stormwater Pollution:.
List and describe PH: 6.96
Note: Low clarity. high solids, and/inthe presence of Imam, oil sheen, or erosion/depositirm may be
indicative of pollutant exposure. These conditions warrant further investigation.
Pape 2 of
swu-242.11 i(Ars

0
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
Fur guidance on filling out This farm, please visit. htin:l/h2o.enr.state.ne.us/au/1'orms Dncuments.htmNmiSefnrms
Permit No.: \/C/ S/ 0 / e /0 / 5 / 3 / r / or Certificate of Coverage No.: \/C/G/_/_/_/_/_/_/
Facility Name: STI P0-1ymer
Count)': Lee Phone No. [phone]
Inspector: Danny Mays
Date of Inspection: 05 / 2 2 / 17
Time of Inspection: 9 : 15
Total Event Precipitation (inches): 0.42
Was this a Representative Stono Event? (See information below) ® Yes ❑ No
Please check your permit torerifv if Qualitative A4onitoring aural be performed during a represenmtirc
storm event (requirements van1).
A "Representative Storm Event" is a storm event that meastu'es greater than 0.1 inches of rainfall and that
is preceded by at least 72 hours (3 days) in which no storm event measuring greater than 0.1 inches has
occurred. A single storm event may contain up to 10 consecutive hours of no precipitation.
By this,.i)mature. I certify that this report is accurate and complete to the best of my knowledge:
(Signature of Pennittee or Designee)
1. Outfall Description:
Outfall No. 02 Structure (pipe, ditch, etc.) Culvert into ditch
Receiving Stream: Little Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area: None
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium. dark) as descriptors: Light brown color, light tint
3. Odor: Describe any distinct odors that the discharge may have (i.e_ smells strongly of oil. weak
chlorine odor. etc.): No distinctive odor
Page I of 2
SwU-242-11260E

4. Clarity: Choose the number which best describes the clarity of the discharge. where I is clear
and 5 isvcry cloudy:
1 2 03 4 5
5. Floating Solids: Choose the number which best describes the amoifiu of floating solids in the
slormw:oei discharge. where I is no. solids and 5 is the surface covered with floating solids:
1 O 3 4 5
6. Suspended Solids: Choose the number which best describes the annount of suspended solids in
the stornlwater discharge. where I is no solids and 5 is extremely muddy:
1 2 O 4 5
7. Is there any foam in the storruwater discharge'? Yes No.
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of enision or deposition at the outfall? 1'es No
10. Other Obvious Indicators of Slor nwnler Pollution:
List and describe
Note: Low claim', high solids, and/or the Imisence of lown. oil sheen, or erosion/deposition may he
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
S W U.242-1 1 ^_608

RECEIVED
STORMWATER DISCHARGE OUTFALL (SDO) DEC 12 2014
MONITORING REPORT
Permit Number: NCS S000531 or SAMPLES COLLECTED DURI ENT g&EAR: 2014
Certificate of Coverage Number: NCG (This monitoring report shall be receive t Division no later than 30 days from
the date the facility receives the sampling results from the laboratory.)
FACILITY NAME STI Polymer COUNTY Lee
PERSON COLLECTING SAMPLE(S) Andrew Rodak PHONE NO.( 919 1777-5995
CERTIFIED LABORATORY(S) Environmental Science Corporation Lab # ENV375
Lab #
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 2.
Part A: Specific Monitoring Requirements
Outfall
Date
50050
1.5
9.0
96
6-9
100
No.
Sample
Collected
Total
Flow (if app.)
Total
Rainfall
Styrene
Vinyl Acetate
Methyl
methacrylate
pH
COD
mo/dd/ r
MG
inches
m
m
m L
m L
01
11/17/14
0.17
<0.00031
0.0016
0.200
739
24.0
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? _ yes X no
(if yes, complete Part B)
Part R- Vehicle Maintenance Activitv Mnnitorinp Requirements
Outfall
Date
50050
00556
00530
00400
No.
Sample
Total Flow
Total Rainfall
Oil & Grease
Non -polar
Total
pH
New Motor Oil
Collected
(if applicable)
(if appl.)
O&G/TPH
Suspended
Usage
(Method 1664
Solids
SGT-HEM), if
a 1.
mo/dd/ r
MG
inches
nign
m
Units
al/mo
Form SWU-246, last revised 21212012
Pagel of 2

STORM EVENT CHARACTERISTICS:
Date 11-17-14
Total Event Precipitation (inches): —
0.17
Event Duration (hours): _2 (only if applicable — see permit.)
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
Mail Original and one copy to:
Division of Energy, Minerals, and Land Resources
Attn: Central Files
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
incluAmg the possibijity of fines and imprisonment for knowing violations."
M Y' lato aO�
(Signature of Permittee) (Date)
Form SWU-246, last revised 21212012
Page 2 of 2

Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form, please visit: http://h2o.enr.state.nc.us/su/Forms Documents.htm#miscfonns
Permit No.: N/C/ S / o / o /o / 5 / 3 / 1 / or Certificate of Coverage No.: N/C/G/_/_/_/_/_/_/
Facility Name: STI Po IT
County: _ Lee
Inspector:
Andrew Rodak
Date of Inspection: 11 / 17 / 14
Time of Inspection: 1325
Total Event Precipitation (inches):
0.17
No.
919) 777-5995
Was this a Representative Storm Event? (See information below) ® Yes ❑ No
Please check your permit to verify if Qualitative Monitoring must be performed during a representative
storm event (requirements vary).
A "Representative Storm Event" is a storm event that measures greater than 0.1 inches of rainfall and that
is preceded by at least 72 hours (3 days) in which no storm event measuring greater than 0.1 inches has
occurred. A single storm event may contain up to 10 consecutive hours of no precipitation.
By th�iwignatVe, I cArtifyppt this report is
Permittee or Designee)
1. Outfall Description:
complete to the best of my knowledge:
Outfall No. 01 Structure (pipe, ditch, etc.) Culvert into ditch
Receiving Stream: Little Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area: Bulk storage and
loading of raw materials (chemical ASTs) and some waste material
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: No dolor light tint
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): No distinctive odor
Page 1 of 2
S W U-242-112608

4. Clarity: Choose the number which best describes the clarity of the discharge, where 1 is clear
and 5 is very cloudy:
0 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
0 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where I is no solids and 5 is extremely muddy:
O 2 3 4 5
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? es No
some erosion noted in the area east of the outfall
10. Other Obvious Indicators of Stormwater Pollution:
List and describe PH: 7.39
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
SWU-242-112608

Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form, please visit: httl)://h2o.enr.state.nc.us/su/Forms Documents htm#miscforms
Permit No.: N/C/ S/ o / o /o / S / 3 / 1 / or Certificate of Coverage No.:
Facility Name: STI Po er
County: Lee Phone No. [phone]
Inspector: Andrew Rodak
Date of Inspection:
Time of Inspection:
1325
Total Event Precipitation (inches): 0.17
Was this a Representative Storm Event? (See information below) ® Yes ❑ No
Please check your permit to verify if Qualitative Monitoring must be per during a representative
storm event (requirements vary).
A "Representative Storm Event' is a storm event that measures greater than 0.1 inches of rainfall and that
is preceded by at least 72 hours (3 days) in which no storm event measuring greater than 0.1 inches has
occurred. A single storm event may contain up to 10 consecutive hours of no precipitation.
By [ [gnat e, I c rtify t this report is accurate and complete to the best of my knowledge:
;l�'
Permittee or Designee)
1. Outfall Description:
Outfall No. 01 Structure (pipe, ditch, etc,) Culvert into ditch
Receiving Stream: Little Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area: Bulk storage and
loading of raw materials (chemical ASTs) and some waste material
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: No cel or 1 i ght tint,
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): No distinctive odor
Page 1 of 2
SWU-242-112608

4. Clarity: Choose the number which best describes the clarity of the discharge, where 1 is clear
and 5 is very cloudy:
10 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
0 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where 1 is no solids and 5 is extremely muddy:
Ol 2 3 4 5
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? es No
some erosion noted in the area east of the outfall
10. Other Obvious Indicators of Stormwater Pollution:
List and describe pH: 7.39
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
SWU-242-112608

STORMWATER DISCHARGE OUTFALL (SDO)
ANNUAL SUMMARY DATA MONITORING REPORT (DMR)
Calendar Year 2014
Individual NPDES Permit No. NCS S000531 or
Certificate of Coverage (COC) No. NCG
This monitoring report summary of the calendar year is due to the DWO Regional Office no later than March V of the following year.
Facility Name: STI Polymer
County: Lee
Phone Number:( 919 ) 77
Total no. of SDOs monitored 1
Outfall No. _001_
Is this outfall currently in Tier 2 (monitored monthly)?
Was this outfall ever in Tier 2 (monitored monthly) during the past year?
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities?
Yes ❑ No
Yes ❑ No
Yes ❑ No
Parameter, units
Total
Rainfall,
inches
P H
(Standard
units)
Styrene
(mg/L)
Vinyl Acetate
(mglL)
Methyl
methac late
ry
(mglL)
COD
(mg/L)
Benchmark
N/A
6.0-9.0
1.5
9.0
96
100
Date Sample
Collected,
mmldd/yy
®®
04/07/14
1.29
6.10
<0.00031
<0.0017
<0.0012
< 3.0
11/17/14
0.17
7.39
<0.00031
<0.0016
0.200
24
S W U-264-Generic-25May2010

Additional Outfall Attachment
Outfall No.
Is this outfall currently in Tier 2 (monitored monthly)? Yes ❑ No ❑
Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes ❑ No ❑
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities? Yes ❑ No ❑
----------
----------
----------
----------
----------
----------
----------
----------
----------
----------
----------
----------
----------
S W U-264-Gen eric-25May2010

I certify, under penalty of law, that this document and all attachments were prepared under my direction or.supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the
Signature
Date ID
DWQ Regional Office Contact Information:
for knowing violations."
Mail Annual DMR Summary Reports to:
A_ SHEVILLE REGIONAL OFFICE_
F_AYETTEVILLE REGIONAL OFFICE
MOORESVILLE REGIONAL OFFICE
225 Green Street
610 East Center Avenue/Suite 301
2090 US Highway 70
Swannanoa, NC 28778
Systel Building Suite 714
Mooresville, NC 28115
[phone]
Fayetteville, NC 28301-5043
[phone]
[phone]
RALEIGH REGIONAL OFFICE
WASHINGTON REGIONAL OFFICE
NVILMINGTON REGIONAL OFFICE
3800 Barrett Drive
943 Washington Square Mall
127 Cardinal Drive Extension
Raleigh, NC 27609
Washington, NC 27889
Wilmington, NC 28405-2845
[phone]
[phone]
[phone]
WINSTON-SALEM REGIONAL OFFICE
CENTRAL OFFICE
585 Waughtown Street
Winston-Salem, NC 27107
1617 Mail Service Center
Raleigh, NC 27699-1617
'To preserve, protect
and enhance
lio
[phone]
[phone]
North Carolina's water..."
S W U-264-Generic-25May2010

STORMWATER DISCHARGE OUTFALL (SDO)
ANNUAL SUMMARY DATA MONITORING REPORT (DMR)
Calendar Year 2014
Individual NPDES Permit No. NCS S000531 or
Certificate of Coverage (COC) No. NCG
This monitoring report summary of the calendar year is due to the DWQ Regional Office no later than March 1" of the following year.
Facility Name: STI Polymer
County: Lee
Phone Number: I
Total no. of SDOs monitored
Outfall No. _001_
Is this outfall currently in Tier 2 (monitored monthly)?
Was this outfall ever in Tier 2 (monitored monthly) during the past year?
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities?
Yes ❑ No
Yes ❑ No
Yes ❑ No
Parameter, units
Total
Rainfall,
inches
P H
(Standard
units)
Styrene
(mg/L)
Vinyl Acetate
(mg/L)
Methyl
-methac late
ry
(mgiL)
COD
(mgiL)
Benchmark
N/A
6.0-9.0
1.5
9.0
96
100
Date Sample
Collected,
mm/dd/yy
04/07/14
1.29
6.10
<0.00031
<0.0017
<0.0012
< 3.0
11/17/14
0.17
7.39
<0.00031
<0.0016
0.200
24
S W U-264-Generic-25May2010

Additional Outfall Attachment
Outfall No.
Is this outfall currently in Tier 2 (monitored monthly)? Yes ❑ No ❑
Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes ❑ No ❑
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities? Yes ❑ No ❑
Parameter, units
Total
Rainfall,
inches
Benchmark N/A
Date Sample
Collected,
mmldd/yy
SW U-264-Generic-25May2010

"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the p psibility of fines and imprisonment for knowing violations."
Signature (_�,
Date law .-� V
Mail Annual DMR Summary Reports to:
DWQ Regional Office Contact Information:
EVILLE REGIONAL OFFICE
2090 US Highway 70
Swannanoa, NC 28778
[phone]
RALEIGH REGIONAL OF
3800 Barrett Drive
Raleigh, NC 27609
[phone]
TON-SALEM REGIONAL OFFICE
585 Waughtown Street
Winston-Salem, NC 27107
[phone]
CETTEVILLE REGIONAL OFFICE
225 Green Street
Systel Building Suite 714
Fayetteville, NC 28301-5043
[phone]
WASHINGTON REGIONAL OFFI
943 Washington Square Mall
Washington, NC 27889
[phone]
1617 Mail Service Center
Raleigh, NC 27699-1617
[phone]
MOORESVILLE REGIONAL OFFIC]
610 East Center Avenue/Suite 301
Mooresville, NC 28115
[phone]
ILMINGTON REGIONAL OFFICE
127 Cardinal Drive Extension
Wilmington, NC 28405-2845
[phone]
To preserve, protect
and enhanced
North Carolina's wafer...'
S W U-264-Generic-25May2010

RECEIVED
STORMWATER DISCHARGE OUTFALL (SDO)
MAY 15 2014 MONITORING REPORT
VeeRi 'Wi YARS S000531 or SAMPLES COLLECTED DURING CALENDAR YEAR: 2014
STWLNlhW gPWI Number: NCG (This monitoring report shall be received by the Division no later than 30 days from
the date the facility receives the sampling results from the laboratory.)
FACILITY NAME STI Polymer COUNTY Lee
PERSON COLLECTING SAMPLE(S) Andrew Rodak PHONE NO.( 919 ) 777-5995
CERTIFIED LABORATORY(S) Environmental Science Corporation Lab # ENV375
Lab #
SIGNATURE OF PERMITTEE OR DESIGNEE
REOUIRED ON PAGE 2.
Part A: Specific Monitoring Requirements
Outfall
Date
50050
No.
Sample
Collected
Total
Flow (if app.)
Total
Rainfall
Styrene
Vinyl Acetate
Methyl
methacrylate
pH
COD
mo/dd/ r
MG
inches
m
m
m L
m L
01
04/07/14
1.29
< 0.00031
0.0017
< 0.0012
6.10
< 3
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month?_ yes X no
(if yes, complete Part B)
Part R- Vehicle Maintenance Activitv Monitoring Requirements
Outfall
Date
50050
00556
00530
00400
No.
Sample
Total Flow
Total Rainfall
Oil & Grease
Non -polar
Total
pH
New Motor Oil
Collected
(if applicable)
(if appl.)
O&G/TPH
Suspended
Usage
(Method 1664
Solids
SGT-HEM), if
a 1.
mo/dd/ r
MG
inches
mgA
mgn
Units
al/mo
Forth SWU-246, last revised 21212012
Page 1 of 2

STORM EVENT CHARACTERISTICS:
Date 04-07-14
Total Event Precipitation (inches): L29
Event Duration (hours): _3_ (only if applicable — see permit.)
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
Mail Original and one copy to:
Division of Energy, Minerals, and Land Resources
Attn: Central Files
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of rXe) and imprisonment for knowing violations.')
(Date)
?1013Vtr:Ad,k.. h: i 111: *i :
fl'R(iI"i?^ _-V,ll!.
r
Form SWU-246, last revised 1/2/2012
Page 2 of 2

a
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form, please visit: htto://h2o.enr.state.nc.us/su[Forms Documents.htm#miscforms
Permit No.: N/C/ s / 0 / 0 /0
Facility Name: STI Po Dm i
County: Lee
Inspector: Andrew Rodak
Date of Inspection: 0 4 / 0 7 / 14
Time of Inspection: 1215
Total Event Precipitation (inches)
or Certificate of Coverage No.: N/C/G/_/_/_/_/_/_/
1.29
No. [phone]
Was this a Representative Storm Event? (See information below) ® Yes ❑ No
Please check your permit to verify if Qualitative Monitoring must be performed during a representative
storm event (requirements vary).
A "Representative Storm Event" is a storm event that measures greater than 0.1 inches of rainfall and that
is preceded by at least 72 hours (3 days) in which no storm event measuring greater than 0.1 inches has
occurred. A single storm event may contain up to 10 consecutive hours of no precipitation.
By thisAnature, I certify t* this report is accurate and complete to the best of my knowledge:
of Permittee or
1. Outfall Description:
Outfall No. 02 Structure (pipe, ditch, etc.) Culvert into ditch
Receiving Stream: Little Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area: None
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: T,i ght- brown rnl or I ight tint
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): No distinctive odor
Page 1 of 2
SWU-242-112608

4. Clarity: Choose the number which best describes the clarity of the discharge, where I is clear
and 5 is very cloudy:
1 2 0 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where I is no solids and 5 is the surface covered with floating solids:
1 2 03 4 5 some trash observed
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where 1 is no solids and 5 is extremely muddy:
1 2 03 4 5
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No
10. Other Obvious Indicators of Stormwater Pollution:
List and describe
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
SWU-242-112608

a
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
Forguidance onfilling out thisform, please visit: http://h2o.enr.state.ne.us/su/Fonns Documents.htm#miscforms
Permit No.: N/C/ S/ o / 0 /0 / 5 / 3 / 1 / or Certificate of Coverage No.: N/C/G/_/_/_/_/_/_/
Facility Name: STI Polymer
County: Lee Phone No. [phone]
Inspector: Andrew Rodak
Date of Inspection: 04 / 0 7 / 14
Time of Inspection: 1145
Total Event Precipitation (inches): 1.29
Was this a Representative Storm Event? (See information below) ® Yes ❑ No
Please check your permit to verify if Qualitative Monitoring must be performed during a representative
storm event (requirements vary).
A "Representative Storm Event" is a storm event that measures greater than 0.1 inches of rainfall and that
is preceded by at least 72 hours (3 days) in which no storm event measuring greater than 0.1 inches has
occurred. A single storm event may contain up to 10 consecutive hours of no precipitation.
By thip'sTgna[ures 1 certi that this resort is accurate and complete to the best of my knowledge:
Permittee or
1. Outfall Description:
Outfall No. 01 Structure (pipe, ditch, etc.) Culvert into ditch
Receiving Stream: Little Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area: Bulk storage and
loading of raw materials (chemical ASTs) and some waste material
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: No cn1 nr l i ai ht r i nt-
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): No distinctive odor
Page I of 2
SWU-242-112608

4. Clarity: Choose the number which best describes the clarity of the discharge, where 1 is clear
and 5 is very cloudy:
1 2 3 40 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where I is no solids and 5 is the surface covered with Floating solids:
0 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where 1 is no solids and 5 is extremely muddy:
1 02 3 4 5
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? es No
some erosion noted in the area east of the outfall
10. Other Obvious Indicators of Stormwater Pollution:
List and describe PH: 6.10
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
SWU-242-112608

RECEIVED
MAY 15 2014
STORMWATER DISCHARGE OUTFALL (SDO)
DENR-LAND QUALITY MONITORING REPORT
STORMWATER PERMITTING
Permit Number: NCS S000531 or
Certificate of Coverage Number: NCG
SAMPLES COLLECTED DURING CALENDAR YEAR: 2014
(This monitoring report shall be received by the Division no later than 30 days from
the date the facility receives the sampling results from the laboratory.)
FACILITY NAME STI Polymer COUNTY Lee
PERSON COLLECTING SAMPLE(S) Andrew Rodak PHONE NO. ( 919 ) 777-5995
CERTIFIED LABORATORY(S) Environmental Science Corporation Lab # ENV375
Lab #
FSaIGNATURE OF PERMITTEE OR DESIGNEE
IRED ON PAGE 2.
Part A: Specific Monitoring Requirements
Outfall
Date
50050' -
No.
Sample
Collected
Total':
Flow (if app.)
Total
Rainfall
Styrene
Vinyl Acetate
Methyl
methacrylate
pH.
COD
mo/dd/ r
MG
inches
m
m
m
in
01
04/07/14
1.29
< 0.00031
0.0017
< 0.0012
6.10
< 3
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? _ yes X no
(if yes, complete Part B)
Part B: Vehicle Maintenance Activity Moulin ng Requirements
Outfall
Date
50050
00556
00530
00400
No.
Sample
Total Flow
Total Rainfall
Oil & Grease
Non -polar
Total
pH. '-
New Motor Oil
Collected
(if applicable)
(if appl.)
O&G/TPH
Suspended _
Usage
(Method 1664
Solids
M
SGT=HEM), if
a 7.
mo/dd/yr
MG
inches
mg1I
nign
Units
al/mo
Form SWU-246, last revised 21212012
Page 1 of 2

STORM EVENT CHARACTERISTICS:
Date 04-07-14
Total Event Precipitation (inches): _1.29
Event Duration (hours): _3 (only if applicable — see permit.)
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
Mail Original and one copy to:
Division of Energy, Minerals, and Land Resources
Attn: Central Files
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possibility;of 7and imprisonment for knowing violations."_._
(Sign P mittee) (Date)
Form SWU-246, last revised 21212012
Page 2 of 2

a
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out thisform, please visit: http://h2o.eni.state.nc.us/su/-orms Documentshtm#miscfonns
Permit No.: N/C/ S / o / o /o / 5 / 3
Facility Name: STI Polymer
County: Lee
Inspector: Andrew Rodak
Date of Inspection: 04 / 0"
Time of Inspection: 1215
or Certificate of Coverage No.:
Total Event Precipitation (inches): 1.29
No. (919) 777-
Was this a Representative Storm Event? (See information below) ® Yes ❑ No
Please check your permit to verify if Qualitative Monitoring must be performed during a representative
storm event (requirements vary).
A "Representative Storm Event' is a storm event that measures greater than 0.1 inches of rainfall and that
is preceded by at least 72 hours (3 days) in which no storm event measuring greater than 0.1 inches has
occurred. A single storm event may contain up to 10 consecutive hours of no precipitation.
By thislsig\ature, I certify tl{ this report is accurate and complete to the best of my knowledge:
r
or
1. Outfall Description:
Outfall No. 02 Structure (pipe, ditch, etc.) Culvert into ditch
Receiving Stream: Little Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area: None
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: Light- hrown color 1 i cjht tint
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): No distinctive odor
Page 1 of 2
SWU-242-112608

4. Clarity: Choose the number which best describes the clarity of the discharge, where 1 is clear
and 5 is very cloudy:
1 2 03 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
1 2 03 4 5 some trash observed
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where 1 is no solids and 5 is extremely muddy:
1 20 4 5
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No
10. Other Obvious Indicators of Stormwater Pollution:
List and describe
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
SWU-242-112608

1
a
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance onfilling out thisform, please visit: http:/Fh2o.enr.state.nc.us/su/Fonns Documents htm#nlisefonm
Permit No.: N/C/ s / 0 / o /0 / 5 / 3 / 1 / or Certificate of Coverage No.:
Facility Name: STI Polymer
County: Lee Phone No. [phone]
Inspector: Andrew Rodak
Date of Inspection:
Time of Inspection:
1145
Total Event Precipitation (inches): 1.29
Was this a Representative Storm Event? (See information below) ® Yes ❑ No
Please check your permit to verify if Qualitative Monitoring must be performed during a representative
storm event (requirements vary).
A "Representative Storm Event" is a storm event that measures greater than 0.1 inches of rainfall and that
is preceded by at least 72 hours (3 days) in which no storm event measuring greater than 0.1 inches has
occurred. A single storm event may contain up to 10 consecutive hours of no precipitation.
By thi"nature/ I crrti that this_!,eport is accurate and complete to the best of my knowledge:
(Signature of Permittee or 15i
1. Outfall Description:
Outfall No. 01 Structure (pipe, ditch, etc.) Culvert into ditch
Receiving Stream: Little Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area: Bulk storage and
loading of raw materials (chemical ASTs) and some waste material
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: No col or l i aht t i n t
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): No distinctive odor
SWU-242-112608
Page l of 2

4. Clarity: Choose the number which best describes the clarity of the discharge, where 1 is clear
and 5 is very cloudy:
1 2 3 40 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
l0 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where 1 is no solids and 5 is extremely muddy:
1 02 3 4 5
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? es No
some erosion noted in the area east of the outfall
10. Other Obvious Indicators of Stormwater Pollution:
List and describe PH: 6. 10
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
S WU-242-112608