NC0063321_Annual Performance_20210310

2020
ANNUAL PERFORMANCE REPORT
for
Tuckaseigee Water and Sewer Authority
Wastewater Operations
The Tuckaseigee Water and Sewer Authority currently owns and operates four (4) wastewater
treatment facilities. The following report is a summary of the operation of the TWSA Plant # 3
facility for the 2020 calendar year.
TWSA Plant # 3
Location: 851 Cashiers Lake Rd.
Cashiers, North Carolina 28717
Operator in Responsible Charge: Ben Henson, ORC @ ph 828-743-5793
or
Contact: Stan Bryson
Wastewater Operations Superintendent
1246 West Main St.
Sylva NC 28779
ph: 828-586-9318
TWSA Plant # 3 is operated under the authority of the following permit, as issued by the North
Carolina Dept. Of Environment and Natural Resources: NC0063321 NPDES Discharge Permit
TWSA Plant # 3 discharges from one outfall into an unnamed tributary to the Chatooga River
which is classified as Class B-Trout ORW waters in the Savannah River Basin. The plant process
is a conventional activated sludge process with a design capacity of 0.200 million gallon/day.
The plant consists of the following unit processes, manually cleaned bar screen, extended air
activated sludge with secondary clarification, tertiary filters and chlorination and dechlorination
facilities. The addition of a band screen at the headworks would greatly improve operations and
the quality of sludge the plant produces.
The average daily flow at the facility during the year 2020 was 0.094 mgd this represents 47.0%
of plant capacity and was a 5.5% increas from the avg daily flow during 2019. The highest
monthly average during 2020 occurred in June and September and was recorded as .106 mgd.
This represents 53% of total plant capacity and represents a 2% increase from 2019. The highest
daily recorded flow in 2020 was .213 mgd and occurred October 29th, 2020. This was the only
day that the daily flow exceeded plant capacity during 2020.

This plant produced 72,000 gallons of waste sludge during 2020 This sludge was hauled by a
private contractor to TWSA Plant #1 for treatment. These residuals totaled 9.16 dry tons and
represented 2.9% of the total residuals generated by the Authorities facilities.
Overall performance of the TWSA #3 wastewater plant for the calendar year of 2020 was
excellent. There were no violations of permitted monthly, weekly or daily limits during the
calendar year. On average, there was a 9% reduction in the amount of pollutants in the
water after treatment.
The permit for this facility was renewed effective November 1, 2017 and will expire on Aug 31st'
2022.
Month
Flow
mgd
(Limit,
0.200 mgd)
2020
Monthly Performance Summary of Wastewater
Plant Operations
TWSA Plant # 3 (NC0063321)
Inf Bod
mg/I
Eff BOD
mg/I
(Limit, 15
mg/I)
OA
Reduction
January
0.087
107.0
4.1
96.2
February
0.105
67.4
< 2.7
96.0
March
0.079
122.0
< 4.4
96.4
April
0.067
86.2
5.6
93.5
May
0.090
131.0
3.9
97.0
June
0.106
171.0
3.3
98.1
July
0.104
181.0
3.6
98.0
August
0.103
185.0
3.4
98.2
September
0.106
181.0
7.2
96.0
October
0.105
128.0
6.1
95.2
November
0.096
165.0
5.7
96.5
December
0.080
114.0
5.3
95.4
avg.
0.094
136.6
< 4.7
96.4
Month
Inf TSS
mg/I
Eff TSS
mg/I
(Limit, 30 mg/I)
OA
reduction
Fecal
Coliform
per 100 ml
(Limit,
200/100 mis)
January
123.0
4.3
96.5
< 4
February
91.1
< 2.5
97.3
< 4
March
86.9
< 3.9
95.5
< 4
April
83.8
< 6.1
92.7
< 4
May
128.0
< 4.9
96.2
< 4
June
122.0
< 4.0
96.7
< 4

July
173.0
< 6.0
96.5
12
August
129.0
< 6.7
94.8
< 5
September
233.0
< 10.4
95.5
< 4
October
237.0
9.2
96.1
< 7
November
137.0
< 9.9
92.8
< 4
December
186.0
< 7.7
95.9
< 7
avg.
144.2
< 6.3
95.5
< 5

TWSA Plant # 3 Daily Flows Yearly Monthly Avg. 0.094
2020 Yearly Daily Avg. 0.094
Permitted Flow. 0.200 mgd Yearly Daily Max 0.213
Date Jan'20 Feb10 Mar'20 Apr'20 May'20 Jun'20 July'20 Aug'20 Sep'20 Oct'20 Nov'20 Dec'20
1
0.102
0.085
0.080
0.052
0.087
0.095
0.098
0.118
0.097
0.110
0.118
0.073
►
2
0.051
0.077
0.072
0.063
0.069
0.098
0.105
0.111
0.100
0.105
0.093
0.068
► 3
0.071
0.078
0.104
0.064
0.082
0.108
0.122
0.111
0,104
0.099
0,087
0.083
► 4
0.101
0.093
0.116
0.071
0.081
0.094
0.096
0.090
0.099
0.088
0.097
0.080
► 5
0.073
0.063
0.080
0.061
0.075
0.113
0.117
0.108
0,109
0.093
0,080
0.092
► 6
0.086
0.151
0.085
0.054
0.097
0.135
0.089
0.112
0.103
0.075
0.095
0.079
► 7
0.063
0.105
0.084
0.044
0.063
0.104
0.091
0.110
0,084
0.094
0,096
0.050
► 8
0.065
0.081
0.082
0.067
0.085
0.084
0.118
0.121
0.102
0.088
0.107
0.081
►
9
0.097
0.085
0.090
0.054
0.068
0.113
0.120
0.105
0.102
0.078
0.080
0.057
► 10
0.068
0.103
0.076
0.058
0.078
0.119
0.118
0.083
0.078
0.128
0.107
0.090
► 11
0.095
0.165
0.075
0.032
0.091
0.137
0.098
0.097
0.111
0.076
0.121
0.089
12
0.145
0.144
0.080
0.062
0.057
0.139
0.101
0.089
0.109
0.106
0.149
0.075
►
13
0.072
0.132
0.101
0.056
0.067
0.121
0.099
0.083
0.121
0.115
0.120
0.078
►
14
0.087
0.142
0.076
0.060
0.083
0.095
0.100
0.099
0.097
0.101
0.094
0.077
► 15
0.120
0.104
0.074
0.091
0.078
0.113
0.097
0.112
0.091
0113
0.094
0,080
► 16
0.097
0.110
0.068
0.085
0.080
0.101
0.103
0.110
0.107
0.109
0.109
0.063
► 17
0.087
0.112
0.070
0.078
0.088
0.101
0.105
0.088
0.112
0,098
0.074
0,086
► 18
0.082
0.101
0.062
0.076
0.085
0.100
0.120
0.071
0.162
0.108
0.107
0.074
19
0.102
0.120
0.088
0.048
0.095
0.099
0.095
0.093
0.117
0.097
0.089
0.072
► 20
0.074
0.121
0.085
0.076
0.104
0.111
0.102
0.085
0.114
0.082
0.065
0.056
► 21
0.065
0.101
0.065
0.070
0.103
0.098
0.083
0.106
0.061
0.102
0.105
0.076
► 22
0.066
0.090
0.068
0.050
0.113
0.114
0.087
0.111
0.095
0.102
0.087
0.054
► 23
0.093
0.079
0.065
0.068
0.109
0.098
0.083
0.127
0.098
0.090
0.072
0.063
►
24
0.112
0.094
0.061
0.091
0.108
0.092
0.103
0.118
0.110
0.109
0.088
0.080
► 25
0.104
0.106
0.114
0.100
0.100
0.100
0.162
0.099
0,104
0.110
0,070
0.114
► 26
0.094
0.109
0.078
0.064
0.113
0.088
0.107
0.106
0.125
0.099
0.107
0.126
► 27
0.105
0.100
0.075
0.061
0.111
0.113
0.097
0.112
0,122
0.093
0,096
0.126
► 28
0.077
0.101
0.045
0.072
0.102
0.120
0.123
0.088
0.109
0.083
0.095
0.077
► 29
0.075
0.098
0.078
0.060
0.109
0.079
0.091
0.115
0,102
0.213
0,100
0.072
► 30
0.095
0.091
0.117
0.098
0.101
0.106
0.110
0.122
0.157
0.089
0.087
►
31
0.081
0.070
0.105
0.101
0.091
0.137
0.088
AVERAGE
0.087
0.105
0.079
0.067
0.090
► 0.106
► 0.104
► 0.103
0.106
0.105
0.096
0.080
MAXIMUM
► 0.145
► 0.165
► 0.116
► 0.117
► 0.113
► 0.139
► 0.162
► 0.127
0.162
► 0.213
► 0.149
► 0.126
MINIMUM
0.051
0.063
0.045
0.032
0.057
0.079
0.083
0.071
0.061
0.075
0.065
0.050

The annual report of the Tuckaseigee Water and Sewer Authority Wastewater operations is
available to the public for review at the central offices located at 1246 West Main St. Sylva, NC
28779.
Notification of the availability of this report has been made to the customers or users of these
facilities through advertisements in the print media located in the geographic area the Authority
serves.
I certify under penalty of law that this report is complete and accurate to the best of my
knowledge. I further certify that this report has been made available to the user or customers of
the named system and that those users have been notified of its availability.
•
Stan Bryson
Wastewater Plant Operations Supt.
Tuckaseigee Water and Sewer Authority
Dated: 3/10/21