NC0024244_Report_20200225

P 1704.984.9634 Oa re www.albemarlenc.gov
F 1704.984.9606 S- PO Box 190
ALBEMARLE
Albemarle, NC 28002
NORTH CAROLINA
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RECEIVED
February 25,2020 MAR 0 3 1020
NCDEQ/DWR/NPDES
Owner: City of Albemarle
NPDES#: NC0024244
ORC: Brandon Plyler
To whom it may concern:
In The City of Albemarle Long Creek WWTP NPDES Permit No.NC0024244 Section A(8)the
permittee,is required to submit to The Division of Water Resources a report summarizing possible
pollutant sources to achieve the new limits for Cadmium,Copper,and Chromium VI. Please consider
this document and the attached The City's response to line item 1 in the above mentioned section. I
would like to apologize for the delay.
Since the effective date of the NPDES permit,December 1,2018,The City of Albemarle has performed
the required sampling for Cadmium,Copper,and Chromium VI as required in our NPDES permit at the
treatment plant as well as sites specified in our approved Long Term Monitoring Plan(LTMP).
We have not had one single instance where the limits to be effective on September 1,2025 would have
been exceeded for Cadmium and Chromium VI. Since May 2019,there would have no exceedances for
Copper. The 53 ug/1 reported in February 2019 seems to be an outlying result,though not qualified.
The City of Albemarle currently has one permitted Significant Industrial User(SIU). This user,Auria
LLC(formerly IAC LLC),was a large textile automotive interior manufacturer/dyer. Their dyes were a
significant source of the historic heavy metals(Copper and Total Chromium)discharged to the treatment

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F 1704.984.9606 at PO Box 190
Albemarle, NC 28002
A L B E M A R L E
NORTH CAROLINA
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plant. Their process changed drastically switching to a pre-dyed yarn over the summer of 2018, finally
ceasing the dyeing process totally in September 2018.
Since the effective date of the NPDES permit came after the ceased dyeing operation,there is limited data
to represent the Chromium VI portion of their previous Total Chromium discharge.
The treatment process took several months to completely pass through the treatment process via biosolids
handling/thickening.
Attached you will find a summary of the effluent analytical results from December 2018 to present.
Since there have been no exceedances since the inception date of our NPDES permit,on behalf of the
City of Albemarle,I respectfully request line items 2-6 of Section A(8)to be alleviated. If this request is
granted,The City of Albemarle will continue to monitor the above mentioned pollutants of concern as
specified in our NPDES permit and LTMP. If this request is not granted,of course The City of
Albemarle will follow the required Schedule of Compliance For Cadmium,Copper,and Chromium VI.
If you would like any additional information regarding this issue please contact Brandon Plyler via email
at bplyler@,albemarlenc,gov or telephone [phone]
Sincerely,
City of Albemarle
Long Creek WWTP
Treatment Plant Supervisor

Effluent Cr VI ug/I Cd ug/I Cu ug/I
Dec. 2018 5.22 <1 17
Jan-19 <5 1.5 14
Feb-19 <5 <1 53
Mar-19 <5 <1 13
Apr-19 <5 <1 23
May-19 <5 <1 8.5
Jun-19 <5 <1 8.7
Jul-19 <.1 <.5 9
Aug-19 <.1 <.5 8
Sep-19 <.1 <.5 8
Oct-19 0.176 <.5 <5
Nov-19 0.177 <.5 16
Dec-19 0.301 <.5 11
*Monthly limits effective September 1, 2025
Cr VI ug/I Cd ug/I Cu ug/I
11.9 1.12 16.09