NCS000009_MONITORING INFO_20190531

STORMWATER DIVISION CODING SHEET
NCS PERMITS
PERMIT NO.
DOC TYPE
❑FINAL PERMIT
Sl MONITORING REPORTS
❑ APPLICATION
❑ COMPLIANCE
❑ OTHER
DOC DATE
❑ � � �7 3 /
YYYYMMDD

e 1� sgl carbon
May 20, 2019
Central Files
Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27699-161735
RFCF-NE1D
MM S 1 NAS
EN`f RAL I l,�S
')\N GOON
Re: Storm water Discharge Outfall Monitoring Report (DMR): Year 11, Period 1, Sample 21
SGL Carbon, LLC (Burke County) Individual Permit Number NCS000009
Sir/Madam:
Respectfully submitted are the enclosed original and one copy of the Stormwater Discharge Outfall
Monitoring Report for SGL Carbon, LLC under Individual Permit Number NCS000009. This submission is
for stormwater sampling during Year 11, Period 1, Sample Number 21 (March 1, 2019 — August 31, 2019)
as outlined in Part ll, Section B of our permit. Please note that Outfalls 001 and 002 were also sampled.
These discharge locations are described in the permit application dated Nov 13, 2013. Mr, Isaiah Reed
requested that these outfalls be sampled during his compliance inspection on May 08, 2018.
Please note that the COD for all three outfalls exceeded the benchmark. It is likely that excessive
amounts of pollen on the ground prior to the rainfall event contributed to high levels of organic matter
being discharged. As per permit requirements, a stormwater management inspection was conducted
revealing no other adverse conditions that may have led to elevated COD levels in the discharges.
If there are any questions or comments regarding this report please contact me at 828 432-5774
Sincerely,
J. Dean Ahrens
Environmental Manager
SGL Carbon, LLC, Morganton, NC
Attachment
SGL Carbon, LLC
307 Jamestown Road
Morganton, NC 28655
5glcarbon.com
DCO public - (AHRENSJE)
Phone: [phone]
Fax: [phone]

STORMWATER DISCHARGE OUTFALL (SDO)
iMONITORING REPORT
Permit Number NCS 000009
FACILITY NAME SGL Carbon. LLC
PERSON COLLECTING SAMPLE(S) Jeffery Alan Woodruff
CERTIFIED LABORATORY(S) SGL Carbon, LLC Lab 4 609
Lab ##
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 laboratory.)
COUNTY Burke
PHONE NO. ( 828 ) 432 - 5773
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 2.
Outfall
Date
50050
No.
Sample
Collected
Total
Flow (if app.)
Total
Rainfall
Total
Suspended
Solids TSS
COD
pH
mo/dd/yr
MG
inches
m /L
m /L
Units
Benchmark
-
-
-
100
120
6-9
SDO-001
04/05/19
NA
0.92
28.4
730
6.0
SDO-002
04/05/19
NA
0.92
70.5
600
6.7
SDO-003
04/05/19
NA
0.92
27.6
580
6.3
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? s yes _no
(if yes, complete Part B)
Part 13: Vehicle Maintenance Activity Monitoring Requirements
Outfall
No.
Date
Sample
Collected
50050
00556
00530
00400
Total Flow
(if applicable)
Total
Rainfall
Oil & Grease
(if appl.)
Non -polar
O&G/TPH
(Method 1664
SGT-HEM), if
appl.
Total
Suspended
Solids
pH
New Motor
Oil Usage
mo/dd/yr
MG
inches
mg/1
m /I
unit
al/mo
Benchmark
6-9
SDO-001
04/05/19
NA
0.92
<5
NA
28.4
6.0
55
SDO-002
04/05/19
NA
0.92
9.3
NA
70.5
6.7
SDO-003
04/05/19
NA
0.92
5.7
NA
21.6
6.3
Form SWU-247. last revised 21212012
Page I of 2
DCQ public`- (AHRENSJE)

STORM EVENT CHARACTERISTICS:
Date 10108/2018
Total Event Precipitation (inches): 0.92
Event Duration (hours): NA (only ifapplicable—seepermit.)
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only ifapplicable—see permit.)
Mail Original and one copy to:
Division of Water Quality
Attn: Central Files
1617 Mail Service Center
Raleigh, North Carolina 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. 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)
s
(Date)
Form SWU-247, last revised 21212012
DCD public - (AHRENSJE) Page 2 of 2