NC0036269_Other Agency Documents_20210202

FEB - 4 2021 232 Davidson Hwy, Concord, NC 28027
_ = 704.786.1783 4 704.795.1564 Fax
WORDS
MOORESVILLE REGIONAL OFFICE
\,,f
February 2nd, 2021
Mr. Roberto Scheller
Division of Water Resources
Water Quality Regional Operations
610 E. Center Avenue, Suite 301
Mooresville, N.C. 28115
Rocky River Regional WWTP
6400 Breezy Lane, Concord, NC 28025
704.788.4164 0 704.786.1967 Fax
www.wsacc.org
SUBJECT: ROCKY RIVER REGIONAL WWTP
CABARRUS COUNTY, NC
NPDES-NCO036269
INFLUENT PUMP STATION WET WEATHER EVENTS
Dear Mr. Scheller:
The attached graphs show the hourly average flow rates and run times when all 4 pumps
were running at the Main Pump Station (MPS) located at 6400 Breezy Ln. Concord NC, 28025
for and the Lower Rocky River Pump Station (LRRPS) located at 7200 Rocky River Rd.
Concord NC, 28025. There were 3 dates that met the condition of all 4 pumps running at MPS
and 2 of those dates the conditions were met at LRRPS. On 2/6/2020 all 4 pumps ran at MPS for
9 hours and at LRRPS for 21.8 hours due to 2.61 inches of rain fall on 2/6/2020. On 5/28/2020
all 4 pumps ran at MPS for 0.4 hours due to 1.98 inches of rain fall on 5/27/2020. On
11/13/2020 all 4 pumps ran at MPS for 14.6 hours and at LRRPS for 22.8 hours due to 2.78
inches of rain. No reportable overflows occurred during either event at either pump stations. If
you should have any other questions or comments, please contact me at [phone] ext. 114
or at jamessims a wsacc.or;.
S cerely,
James Sims
Wastewater Operations Manager
JS/blc
Attach

\
�
5
�
}
`
!
�
.
}
.
. .
\
�
a
§
i
%
\
2
orq
§
a
]
:
■

W x
>r m
m C'
II II
'n
4
C —s
< 3
n
O c
2.
il± 3
rr
N
sv
^C
rt
3
m