NCS000010_DMR_20210609

Division of Energy,Mineral and Land Resources EVOnIKPOWER TO CREATE
ATTN:Central Files
1612 Mail Service Center N C Department Of
Raleigh,NC 27699-1612 Environmental Quality
Received September 25,2020
JUN 0 9 2021 Evonik Corporation
2401 Doyle Street
;) Greensboro,NC 27406
CERTIFIED MAIL: RETURN RECEIPT REQUESTED Winston-Salem www.evonik.com
ARTICLE NUMBER: Regional Office Phone [phone]
Fax [phone]
Cell [phone]
[e-mail]
RE: Storm Water Discharge Monitoring Report—Semi-Annual Monitoring
Permit Number NC5000010
Dear Sir/Madam:
Evonik Corporation located at 2401 Doyle Street, Greensboro, Guilford County, North Carolina in accordance with National
Pollution Discharge Elimination System (NPDES) permit number NCS000010 is submitting a copy of our March 2020 Discharge
Monitoring Report(DMR).
This DMR represents a semi-annual monitoring event for the pollutants as required by the storm water permit.The September
analyses indicate that Total Iron was above the benchmark monitoring value(BMV)at the site's storm water discharge outfalls
1,Total Zinc was above the BMV at outfall 4.All other analyses were below the benchmark.Per a letter dated April 7,2017 from
NCDEQ, Evonik has been granted a waiver to tiered response monitoring for Iron and Zinc, therefore no tiered response is
required for these exceedances.
Evonik will continue to collect outfall samples,as appropriate,as qualifying rain events allow under semi-annual monitoring. If
you have any questions or concerns, please feel free to contact me at(336) 333-7969,or our environmental consultant,Tony
Rossano of Antea Group at(704)324-7044.
Sincerely,
Brian Caruthers
Evonik Corporation
EHSS Manager
Attachment—Discharge Monitoring Report
Cc: NCDEQ—Storm Water Division
Winston-Salem Regional Office,
450 West Hanes Mill Road,Suite 300
Winston-Salem,NC 27105
[internal]

STORMWATER DISCHARGE OUTFALL(SDO)
MONITORING REPORT
Permit Number:NCS 000010 or SAMPLES COLLECTED DURING CALENDAR YEAR: 2020
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 Evonik Corporation COUNTY Guilford
PERSON COLLECTING THE SAMPLE(S) John Richardson(CTW) PHONE NO.[phone]
CERTIFIED LABORATORY(S) R&A Labs Lab# 34
in house QC lab(Acrylamide and pH only)
(SIGNATURE OF PERMITTEE OR DESIGNEE)
By this signature,I certify that this report is accurate
complete to the best of my knowledge.
Part A:Specific Monitoring Requirements
Outfall Date 50050
No. Sample Total Total Total Biochemical Chemical Total Iron Total Zinc Total Total Nitrate Total pH
Collected Flow(if app.) Rainfall Suspended Oxygen Oxygen Acrylamide &Nitrite Phosphorous
Solids(TSS) Demand Demand _
mo/dd/yr MG inches mg/I mg/1 mg/I mg/I mg/I mg/I mg/I mg/I units
1 9/25/2020 n/a 1.09 53.0 3.3 27 3.59 0.060 0.00 0.628 0.563 6.70
2 9/25/2020 n/a 1.09 6.8 <2 7 0.70 0.024 0.00 <.3 <.05 6.49
3 9/25/2020 n/a 1.09 <5 <2 21 0.36 0.033 0.00 0.358 0.071 6.71
4 9/25/2020 n/a 1.09 14.2 2.1 19 0.53 0.075 0.00 0.51 0.11 7.12
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
No. Sample Total Flow Total Oil&Grease Total pH New Motor Oil
Collected (if applicable) Rainfall Suspended Usage
Solids(TSS)
mo/dd/yr MG inches mg/I mg/I Units gal/mo
Form SWU-246-112608
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STORM EVENT CHARACTERISTICS
Date 9/25/2020 Mail Original and one copy to:
Total Event Precipitation(inches): 1.09 Division of Water Quality
Event Duration(hours): (only if applicable-see permit) Attn:Central Files
1617 Mail Service Center
(if more than one storm event was sampled) Raleigh,North Carolina 27699-1617
Date
Total Event Precipitation(inches):
Event Duration(hours): (only it applicable-see permit)
"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 imprisonm t for knowing violations."
1/ZZO
ignalure of Permittee) (Da )
Form SWU-246-112608
[Internal) Page 2 of 2