NC0078000_Monitoring (Information)_20201012

DocuSign Envelope ID:34570B1F-3655-4F0C-8F03-9559DA63D35D
ROY COOPER 1'
Governors 7
MICHAEL S.REGAN „ , .
Secretary
S.DANIEL SMITH NORTH CAROLINA
Director Environmental Quality
October 12, 2020
Mr. Glenn Cooper, Owner
Brenntag Mid-South, Inc. —Greensboro
2 HCI Blvd.
Greensboro,NC, 27409
Subject: Additional Monitoring Requirement
Brenntag/Greensboro Remediation
NPDES Permit No. NC0078000
Dear Mr. Cooper,
As you are aware, the State has been sampling and investigating sources of 1,4 dioxane
as a parameter of concern in the Cape Fear River Basin. Due to the receiving stream water
supply usage to which this facility discharges, the State requests additional 1,4 dioxane sampling
at this facility. Pursuant to 15A NCAC 02B .0505 and .0508, the Division is requiring several
industrial facilities in the Cape Fear River Basin to sample for 1,4 dioxane in their plants'
effluent once per month using EPA Test Method 624.1 promulgated in the 2017 Methods Update
Rule.
Monthly effluent sampling for the Brenntag/Greensboro Remediation facility shall commence in
December 2020 and results shall be submitted on the facility's Electronic Discharge Monitoring
Reports (eDMRs)using parameter code 82388. Sampling is to be continued until permit renewal
at which time the Division will determine if 1,4 dioxane will be added to your effluent sampling
page.
To discuss test procedures and find a lab certified to perform this updated test method please
contact Todd Crawford, Laboratory Certification Branch Supervisor, at 919 733 3908 ext. 251 or
via email at todd.crawford(4ncdenr.gov.
If you have any questions,please contact me at(919) 707-3600 or at my email address
jeff.poupart a,ncdenr.gov.
D �'- North Carolina Department of Environmental Quality I Division of Water Resources
5I2 North Salisbury Street 11617 Mail Service Center I Raleigh,North Carolina 27699 1
6
1
7
a++� /'" 919.707.9000

DocuSign Envelope ID:34570B1F-3655-4F0C-8F03-9559DA63D35D
Sincerely,
DocuSigned by:
8FB19B649DD2478...
Jeff Poupart
Water Quality Permitting Section Chief
Division of Water Resources/NCDENR
cc: S. Daniel Smith,Director,DWR danny.smithAncdenr.gov
Sergei Chernikov,NPDES Industrial Permitting,DWR [e-mail]
David Hill,NPDES Industrial Permitting,DWR david.hillAncdenr.gov
Todd Crawford,Laboratory Certification Branch Supervisor,DWR
todd.crawfordna,ncdenr.gov
Chris Johnson,Water Sciences Section, DWR chris johnsonAncdenr.gov
Mark Brantley, Supervisor,DWR FRO mark.brantley(a,ncdenr.gov
Kim Nimmer,EC Coordinator,DWR kim.nimmerAncdenr.gov
Jim Shilliday,Arcadis [e-mail]