NCS000156_MONITORING INFO_20190509

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STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO.
N L S V V V' 6
DOC TYPE
❑ HISTORICAL FILE
MONITORING REPORTS
DOC DATE
❑ V 0
YYYYMMDD

HEXION` -
Responsible Chemistry
Personnel Collecting Samples: Cindy Dale
Certified Laboratories: Environmental Chemists (Lab ID: 94)
Environmental Testing Solutions, Inc. (Lab ID: 37)
April 5. 2019
Date of Sampling Event*
ANALYTICAL RESULTS
-- Hexion,Inc. — Acme Facility
Certificate of Coverage No. NCS0001 56
333 Neils Eddy Road, Riegelwood; NC 28456
RFCTIVED
MAY 0 9 2019
DENR-LAND QUALITY
STOP,MWATER PERMITTING
00530
00310
00340
00610
00625
00630
00665
77885
50060
71880
01042
01092
01051
00556
00400
TSS
f30D
COD
_
N41�
TKN
NO;+NOz
Total
Methanol
TRC
Hezamme
HCHO
'Ibtal
Copper
Total
zinc
Total
Lead
Non-
Polar
pH
s.0
Outfall
mg/I
mg/1
mg/I
`
mg/I
mg/1
mg/I
Phosphorous
mg/I
mg/I
mg/I
mg/I
mg/I
me/I
mg/1
mg/I
O&G
mgI
003
Q.9
6
42
9.8
10.2
4.87
0.12
<5
0.015
QO
3.2
0.009
0.032
<0.010
<5
6.97
004
44.7
70
773
6.2
228
7.11
0.36
<5
0.0
446
92
0.040
1 0.150
0.012
<5
7.83
006
14.8
11
29
4.5
5.9
LB
0.14
<5
0.065
<10
1.0
0.002
1 0.333
<0.010
<5
1 6.82
009
3.0
6
41
1 3.7
6.8
0.41
0.07
<5
0.050
17
4.3
0.005
1 0.076
<0.010
<5
1 6.71
ACUTE TOXICITY Outfall 003 Outfall 004 Outfall 006 Outfall 009
RESULTS Annual Annual Annual Annual
STORM EVENT CHARACTERISTICS
Total Event Precipitation: 1.2 inches*
Sampling Period: Q2 April
CERTIFICATION STATEMENT
By this signature, I certify this report is accurate and complete to the best of my knowledge.
4,/j 1, 7. �b
Sig tature of Perin/itteel or Designee Date I
Ronald Bazinet- Site Leader
Print Name and Title
* N/A indica s no qualifying rain event for monthly period 0

STORMWATER DISCHARGE OUTFALL (SDO)
Permit Number: NCS S000531 or
Certificate of Coverage Number: NCG
MONITORING REPORT
FACILITY NAME STI Polymer
PERSON COLLECTING SAMPLE(S) Duneklee & Dunham. Lily Walker
CERTIFIED LABORATORY(S) ESC Lab Sciences
Part A: Specific Monitoring Requirements
SAMPLES COLLECTED DURING CALENDAR YEAR: 2019
(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 laborRt`F
^,,/�
COUNTY Lee ( " �•�
PHONE NO. [phone] APR 22 ?019
Lab# ENV375 OfNR
[SIGNATURE
GNATU DEONFPPAERE UTTEE OR DESIGN , ' OiEp RMII' NG
Outfall
Date.
'50050
1.5
9.0
:96-:
6-9
100
No.
Sample' "' '
Collected
Total '
Flow (if app.)
Total
Rainfall
Styrene •
Vinyl Acetate.
•Methyl --- --- -
methaerylate,
•pH--
COD
Imo/dd/ r' : •
•CMG.., .
-inches ..
7m L.::'y-.r!
;m 7L . -
'm L
m L
mark :.. -.-
Bench'
.: -: .-.
.
1:5"'. 'i-.9.0
ti ,,. ..r
. ,_
'96:" z •:'.
6=9 •, t:_r.-.
100r—;: ; "...
; .: •
- .
OF-01
04/02/19
0.35
<0.000307
0.00994J
<0.0012
6.02
135
J indicates the report value is an estimate: identification of the analyte is acceptaate accoramg to taoorruary
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 ts: vemeie
Outfall
maintenance
Date' -
r uu,itv v.v...aUN
50050
.1. ............,,
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-
'Solids
Usage
(Method 1664
SGT-HEM), if
,..mo/d'd/r...
-,.
MG- - --
inches.. _
.m ,_.... .. _
-..... -...
m -_ -
Units
aUmo
Form SWU-246, last revised 21212012
Page 1 of 2

STORM EVENT CHARACTERISTICS: Mail Original and one copy to:
Division of Energy, Minerals, and Land Resources
Date: 04/02/19 Attn: Central Files
Total Event Precipitation (inches): 0.35 1612 Mail Service Center
Event Duration (hours): (only if applicable —see permit.) Raleigh, North Carolina 27699-1612
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
"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."
Q,rr\cr,-1 tc-- (- 19, IZ)
(Signature of Permittee) (Date)
Form SWU-246, last revised 21212012
Page 2 of 2

HIC
L'noironmenlot
Qualtly
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance onfilling out 1hisf6rm, please visit https://deq.nc.gov/about/divisions/energy-mineral-land-resources/
npdes-stormwater-gps
Permit No.: N/C/. 0 ( 0 / 0 / 5 / 3 / 3 / I / or Certificate of Coverage No.: N/C/G/ / / / / / /
Facility Name:
County: Lee
Inspector: Lily Walker
Date of Inspection: 04/02/2019
Time of lnsnection: 1115
Total Event Precipitation (inches): 0.35"
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:
0_ MQN�^ plc._,
(Signature of Permittee or Designee)
1. Outfall Description:
OutfalI No. OF -I 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 unloading of raw chemicals chemical ASTs waste material pallets
Page] 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 yellow, fairly clear
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 1 is clear
and 5 is very cloudy: ,
1 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:
2 3 O 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:
2 O3 4 5
7. Is there any foam in the stormwater discharge? O Yes (oj No.
8. Is there an oil sheen in the stormwater discharge? 0Yes tQNo.
9. Is there evidence of erosion or deposition at the outfall? 0 Yes O No. see comments
10. Other Obvious Indicators of Stormwater Pollution:
List and describe: pH: 6.02
significant pollen buildup on water at outfall, fairly clear water
significant erosion surrounding outfall, grasses/vegetation removed from banks resulting in erosion of
banks, pile of eroded dirt/mud in outfall pipe recommend reseeding banks (do not fertilize)
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

tA•. ironmcn rat
Quality
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form, please visit https://deq.nc.gov/about/divisions/energy-mineral-land-resources/
n pdes-stone water-gps
Permit No.: N/C/ 0 / O / 0 / 5 (3 (3 (1 / or Certificate of Coverage No.: N/C/G/ / / / / / /
Facility Name: STI
County: Lee
Inspector:
Date of Inspection: 04/02/2019
Time of Inspection: 1 125
Total Event Precipitation (inches): 0.35"
111iRiTT.►la
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 -]a Q�`�'btructure (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
S W U-242, Last modified 06/01/201 B

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:
1 2 3 O 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:
2 O3 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:
2 O 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 LbjNo.
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
noticeable floating solids in water, no significant signs of pollution
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 06/01/2019

1
RECENFO
STORMWATER DISCHARGE OUTFALL (SDO) APR 22 2019
MONITORING REPORT
DENR-LAND QUALITY
Permit Number: NCS S000531 or SAMPLES COLLECTED DURING CW�fS°t1I5IXIIE-�"T G
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. [phone]
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
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
linches
m /L
m /L
m L
m L
Benchmark
1.5
9.0
96
6-9
100
OF-01
04/02/19
0.35
<0.000307
0.009941
<0.0012
6.02
135
J indicates the report value is an estimate; identification of the analyte is acceptable according to laboratory
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)
ran n: venicie
Outfall
Nimnienanur
Date
A,Uvity ,..U11ALUI
50050
11
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/vr
MG
inches
m I
m I
Units
gaurno
Form SWU-246, last revised 21212012
Page 1 of

STORM EVENT CHARACTERISTICS: Mail Original and one copy to:
Division of Energy. Minerals, and Land Resources
Date: 04/02/19 Attn: Central Files
Total Event Precipitation (inches): 0.35 1612 Mail Service Center
Event Duration (hours): (only if applicable— see permit.) Raleigh, North Carolina 27699-1612
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
"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, lust revised 21212012
Page 2 of 2 if

Environmental
Qualtly
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
Forguidance on filling out thisform, please visit https:Hdeq.ne.gov/about/divisions/energy-mineral-land-resources/
npdes-stormwater-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: 04/02/2019
Time of Inspection: 1 1 15
Total Event Precipitation (inches): 0.35"
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- I 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 unloading of raw chemicals chemical ASTs, waste material pallets
Page I of 2
SWU-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 yellow, fairly clear
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:
1 O 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 2 3 (D 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? O Yes U No.
8. Is there an oil sheen in the stormwater discharge? OYes QNo.
9. Is there evidence of erosion or deposition at the outfall? @Yes O No. see comments
10. Other Obvious Indicators of Stormwater Pollution:
List and describe: PH: 6.02
significant pollen buildup on water at outfall fairly clear water
significant erosion surrounding, outfall grasses/vegetation removed from banks resulting in erosion of
banks, pile of eroded dirt/mud in outfall pipe recommend reseeding banks (do not fertilize)
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, Last mod i I ed 06/01 /2018

Environmental
Quality
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out thisforin, please visit https://deq.ne.gov/about/divisions/energy-mineral-land-resources/
npd es-stormwater-gps
Permit No.: N/C( 0 /.0 / 0 ( 5 / 3 /, 3 /. I / or Certificate of Coverage No.: N/C/G/ / / / / / /
Facility Name:
County: Lee
Inspector: Lil,
Date of Inspection: 04/02/2019
Time of Inspection: 1125
Total Event Precipitation (inches): 0.35"
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:
ti 1 c
(Signature of Permittee or Designee)
1. Outfall Description:
Outfall No. OF-Jk Q 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 oft
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 1 is clear
and 5 is very cloudy:
1 2 3 O 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:
2 (D 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:
2 O 4 5
7. Is there any foam in the stormwater discharge? O Yes U No.
8. Is there an oil sheen in the stormwater discharge? 0Yes i7UNo.
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 rg owing in pipe outlet area
noticeable floating solids in water, no significant signs of pollution
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