NC0026123_Additional Monitoring Requirement_20171031

Water Resources
ENVIRONMENTAL QUALITY
ROY COOPER
Govemoi
MICHAEL S REGAN
Seo etm v
S JAY ZIMMERMAN
Du ecloi
October 31, 2017
Mr. John N. Ogburn, III
City Manager
City of Asheboro
P.O. Box 1106
146 N Church Street
Asheboro, NC 27204
Subject' Additional Monitoring Requirement
Asheboro WWTP
NPDES Permit No. NCO026123
Dear Mr. Ogburn,
As you are aware the state has been sampling and investigating sources of 1,4 dioxane in the
Cape Fear River Basin. Sampling performed downstream of the Asheboro WWTP has shown lugh levels
of this contaminant. Pursuant to 15A NCAC 02B .0505 and .0508 the Division is requiring permitted
POTWs to sample for 1,4 dioxane in their plants effluent once per month using the recently approved
EPA Test Method 624.1 promulgated in the 2017 Methods Update Rule.
Monthly effluent sampling for the Asheboro WWTP NCO047384 at Outfall 001 shall commence in
December 2017 and results shall be submitted on the POTW's Discharge Monitoring Reports.
To discuss test procedures and find a lab certified to perform this updated test method please contact
Dana Satterwhite, Environmental Program Supervisor III, at 919 733 3908 ext. 202 or via email at
dana satterwh>tegncdenr.gov
If you have any questions, please contact me at [phone] or at my email address
jeffpooarte,ncdenr gov
Sincerely,
Z7:::--
Jeff Poupart
Water Quality Permitting Section Chief
Division of Water Resources
cc: Jay Zimmerman, Director, DWR
Julie Grzyb, NPDES Complex Permitting, DWR
Mike Rhoney, Water Resource Director, Asheboro [e-mail]
Michelle Dawes MDAWESAci asheboro nc us
Dana Satterwhite, Environmental Program Supervisor III, DWR dana satterwhitenncdenr goo
Chris Johnson, Water Sciences Section, DWR chris johnson@ncdenr gov
George Smith, Assistant Regional Supervisor, DWR WSRO george smrth(a),ncdenr gov
State of North Ca-� I Environmental Quality I Water Resources
1617 Mail Service Center I Raleigh, North Carolina 27699-1617
919 707 9000