NC0024244_NOV-2019-LV-0102 CLONOV_20190228

P 704.984.9637
F 704.984.9606 I'
ALBEMARLE
NORTH CAROLINA
U/t�, flaw Laid, dpp�t�;t�.
Public Utilities Department
February 28, 2019
North Carolina of Environment Quality
Mooresville Regional Office
Attn:
W. Corey Basinger, Regional Supervisor
Water Quality Operations Section
Mooresville Regional Office
Division of Water Resources
Re:
Notice of Violation(s) & Intent to Assess Civil Penalty
Tracking Numbers
NOV-2019-LV-0102
NPDES Permit # NCO024244
City of Albemarle
Long Creek W WTP
Dear Mr. Basinger,
www.albemarienc.gov
PO Box 190
Albemarle, NC 28002
The purpose of this letter is to provide additional information regarding the NOV dated February
18, 2019. I would like to thank you and the staff of the Mooresville Regional Office for the opportunity
to respond to the NOV listed above.
Over the past five years the influent BOD loading at The Long Creek Wastewater Treatment
Plant has been trending downward. There has been a 33 % decrease in the total pounds of influent BOD
per year from 2013 to 2018. This trend has continued into 2019. This downward trend has caused
several operational changes at the plant finally forcing the plant to be isolated to operate on 2 aeration
basins and 2 clarifiers during low/normal flow events.
During the months of November and December, 17+" of rain was recorded in the rain gauge at
The City of Albemarle Long Creek Wastewater Treatment Plant located at 1040 Coble Albemarle NC.
These high flow (rain) events have washed out the biomass, inhibiting nitrification. Attempts at restoring
the biomass has been crippled due to low influent BOD concentrations (52mg/1 & 85 mg/l monthly
average) during the months of November and December.

P 704.984.9637 www.albemarlenc.gov
F 704.984.9606 PO Box 190
AL B E M A R L E Albemarle, NC 28002
NORTH CAROLINA
klaatew i4e Land l%i�iawtarrit�
Public Utilities Department
A representative from Polytech is scheduled to visit the site on 3-1-19-19 to see if their company
offers a coagulant to aid settleability of the "young sludge" and allow these bacteria to be returned in the
system via the RAS. This scheduled visit has been delayed several times due to high flow from rain
events.
If you would like any additional information regarding this feel free to contact me at
[e-mail] or 704-984-9634.
Sincerely,
Brandon W. Plyler
City of Albemarle
Treatment Plant Supervsior/ORC

2013 Inf. BOD mg/I MGD
Jan
189
5.51
Feb.
177
6.92
Mar.
108
7.04
Apr.
154
6.75
May
116
6.08
June
127
9.09
July
102
10.09
Aug.
134
5.26
Sept.
156
4.24
Oct.
180
3.95
Nov.
203
4.24
Dec. 1
1301
6.27
2014 Avg. Inf. BOD MGD
Jan.
128
7.58
Feb.
91
8.7
Mar.
107
8.83
Apr.
134
9.08
May
195
5.47
June
196
4.26
July
164
4.49
Aug•
141
4.93
Sept.
155
4.73
Oct.
176
4.01
Nov.
169
4.94
Dec.
171
5.79
2015 Inf. BOD mg/I MGD
Jan.
114.5
7.28
Feb.
101
7.26
Mar.
88
8.02
Apr.
104
6.74
May
138
4.6
June
133
4.8
July
119
4.32
Aug.
134
4.06
Sept.
128
4.31
Oct.
89
7.25
Nov.
89
10.17
Dec.
138
10.66
2016 Avg. Inf. BOD MGD
Jan.
90.8
7.96
Feb.
81
8.55
Mar.
125
6.35
Apr.
1483
5.55
May
147
5.03
June
166
4.16
July
142
4.34
Aug.
135
4.94
Sept.
137
4.6
Oct. 1
129
4.83
Nov.
151
3.87
Dec.
130
4.6

2017 Avg. Inf. BOD MGD
Jan.
83.5
7.32
Feb.
119
5.31
Mar.
123
5.19
Apr.
99
6.32
May
107
6.05
June
87
5.96
July
199
4.24
Aug.
150
4.3
Sept.
120
4.74
Oct.
170
3.45
Nov.
176
3.19
Dec.
183
3.62
2019
Jan 58 9.65
Avg. Inf. BOD MGD
2018 Avg. Inf. BOD MGD
Jan.
123
5.42
Feb.
112
6.44
Mar.
183
3.62
Apr.
92
6.74
May
119
5
June
127
3.83
July
130
3.5
Aug.
85
5.82
Sept.
112
6.13
Oct.
79
6.24
Nov.
52
9.66
Dec.
39
11.05
lbs. BOD/day
2013
147.9
6.35
7832
2014
152.3
6.07
7710
2015
114.5
6.62
6321
2016
131.8
5.4
5935
2017
134.9
4.97
5591
2018
104.3
6.12
5323.6
Jan.2019
58.3
9.65
4692