NC0085812_NOV-2019-LV-0296 Response_20190503

Department of Public Works
Water/Wastewater Division
4600 Goldmine Road
Monroe, NC 28110
T. 704-289-1434
F. 704-289-7395
www.unioncountync.gov
May 3, 2019
Mr. W. Corey Basinger,
Regional Supervisor
NCDEQ
610 East Center Avenue, Suite 301
Mooresville, NC 28115
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Dear Mr. CSa�basmger,
This letter is in response to NOV-2019-LV-0296, flow limit exceedances experienced at our
Grassy Branch WRF, dated April 23, 2019.
In our meeting on 05/02/19, we detailed our continuing efforts in reducing the I&I that is entering
the Grassy Branch collection system. In addition to our in-house efforts, we have engaged our
CIP engineers to investigate other options such as flow equalization basins to improve the
ability of the Grassy Branch WRF to manage high flows. We have also engaged Frazier
Engineer in another sequence of flow monitoring to gain a better understanding of where the I&I
is occurring.
We intend to continue our efforts finding and addressing I&I in the Grassy Branch basin. If you
have any questions or concerns please contact me at 704-296-4215.
Sincerely,
a,f,4 ", L
Andrew Neff, PE
Water & Wastewater Division Director
Cc: Aubrey Lofton, Interim Public Works Administrator
Josh Brooks, Asst. Div. Director, Water & Wastewater
Bart Farmer, WRF Superintendent
Greg Morgan, Field Services Superintendent