NC0023876_Additional Monitoring Requirement_20231003

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ROY COOPER ti ?,
Governor Or.'t`'
ELIZABETH S.BISER .ft „
Secretary 911M1vio
RICHARD E.ROGERS,JR. NORTH CAROLINA
Director Environmental Quality
October 3,2023
Mr. Robert Patterson,Jr.
Water Resources Director
City of Burlington
P.O. Box 1358
Burlington,North Carolina 27216
Subject: Additional Monitoring Requirement
Permit NC0023876
South Burlington WWTP
Alamance County
Dear Mr. Patterson:
As you are aware, the state has been sampling and investigating sources of 1,4-Dioxane in the Cape Fear
River Basin. Recent data from the South Burlington WWTP have shown intermittently high levels of this
contaminant. Pursuant to 15A NCAC 02B .0505 and.0508,the Division is requiring Burlington to sample
for 1,4-Dioxane in their South plants' effluent once per week using EPA Test Method 624.1 promulgated
in the 2017 Methods Rule Update.
Weekly effluent grab sampling for the South Burlington WWTP NC0023876 shall commence in November
2023 and results shall be submitted on each POTW's Discharge Monitoring Reports.
To discuss test procedures or find a lab certified to perform this test method please contact Todd Crawford
at 919-733-3908 or via e-mail at todd.crawford(2I deq.nc.gov.
If you have any questions, please contact me at (919) 707-3624 or at my email address
michael.montebello(a,deq.nc.gov.
Sincerely,
cAtDocuSIgned by:
icl u 1, ittbLAILIAILe
C464531431644FE.
for Michael Montebello,NPDES Permitting Branch
Division of Water Resources,NCDEQ
1 cc: Richard E. Rogers,Director, DWR
Julie Grzyb,Deputy Director, DWR
Ben Bani, City of Burlington, Assistant Water Resources Director — Plant Operations,
bbani @burl ingtonnc.gov
Todd Crawford,Laboratory Certification Branch, DWR
Lon Snider and Jenny Graznak,Winston-Salem Regional Office, DWR
Gray Perlmutter,NPDES Municipal Unit,DWR
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