HomeMy WebLinkAboutNC0039578_Annual Performance_202103082020
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 #1
facility for the 2020 calendar year.
TWSA Plant # 1
Location: 1871 North River Rd.
Sylva, North Carolina 28779
Operator in Responsible Charge:
Contact:
Stan Bryson
Wastewater Operations Superintendent
1246 West Main St.
Sylva NC 28779
ph: 828-586-9318
TWSA Plant # 1 is operated under the authority of the following permits, as issued by the North
Carolina Dept. Of Environment and Natural Resources: NC0039578 NPDES Discharge Permit
WQ0005763 Residuals Permit
Air Quality Permit #08420R01
Stormwater Permit #NCG110111
TWSA Plant # 1 discharges from one outfall into the Tuckasegee River which is classified Class
C-Trout waters in the Little Tennessee River Basin. The plant design process is a sequencing
batch reactor (SBR) version of the activated sludge process with a design capacity of 3.5 million
gallon/day. The plant consists of the following unit processes, automatic band screen, vortex grit
removal, 150 hp triplex influent pump station, 2 SBR basins with a capacity of 1.694 mg each,
.468 mg of flow equalization, .1508 mg of chlorination contact capacity and d-chlorination and
reaeration facilities.
A plant upgrade was completed in 2011 and the facility is currently operating well within permit
limits.
Additionally, the plant continues to treat wastes generated by septic tank pumpers in Jackson
County as well as portable toilet services provided during construction of any homes or
businesses in the county. These services to the total geographic area of the county significantly
impact the facilities sludge management operations.
Overall performance of the plant during 2020 was well within permitted limits with no water
quality violations.
Some pertinent information on the plant is as follows:
The average daily flow at the facility during the year 2020 was 1.316 mgd. This represents
37.6% of plant permitted capacity and was a 2.7% increase from 2019. The highest monthly
average in 2020 occurred in February and was recorded as 2.021 mgd. This represents 57.7% of
total plant capacity and was a 9.5% increase from 2019. The highest daily flow occurred Feb
7th, 2020 and was recorded as 4.320 mgd. This represented 123.% of total plant capacity and
was a decrease of .07% from the single highest flow day in 2019. There were two days during
2020 when the recorded flow was greater than plant capacity.
Total sludge production was calculated from the amount of sludge processed on the belt filter
press. These residuals totaled 3,599,105 gals of sludge and were calculated at 314.97 dry tons.
This represents all of the sludge generated by the Authority's facilities during 2020. When the
sludge production of the other plants the Authority operates is subtracted from this total, it is
estimated that the TWSA Plant #1 facility produced 236.9 dry tons of sludge during 2020. This
is 75.2% of the total amount of sludge produced by the facilities operated by the Authority
during 2020. This sludge is dried to meet EPA and NCDENR regulations and is made available
for distribution to the public as a soil amendment. There were approx. 213.8 tons of dried
residuals distributed to the public during 2020, with the remainder of sludge produced being
disposed of in an approved landfill..
On average, there was a 98.1% reduction in the amount of pollutants in the water after
treatment.
The permit for this facility was renewed and became effective August 1st, 2019 and will expire at
midnight on October 31, 2023.
Month
Flow
mgd
(Limit,
3.500 mgd)
2020
MonthlyPerformance Summary of Wastewater
Plant Operations
TWSA Plant # 1 (NC0039578)
Inf Bod
mg/I
EFF BOD
mg/I
(Limit, 30
mg/I)
reduction
January
1.294
194.0
< 3.8
98.0
February
2.021
243.0
7.2
97.0
March
1.339
343.0
8.2
97.6
April
1.177
218.0
< 4.9
97.8
May
1.162
199.0
< 2.7
98.6
June
1.118
167.0
< 2.3
98.6
July
1.306
139.0
< 2.3
98.3
August
1.366
178.0
< 4.0
97.8
September
1.354
292.0
15.4
94.7
October
1.392
231.0
12.6
94.5
November
1.176
257.0
6.8
97.4
December
1.083
208.0
4.1
98.0
avg.
1.316
222.4
< 9.1
97.4
Month
Inf TSS
mg/I
EFF TSS
mg/I
(Limit, 30 mg/I)
reduction
Fecal
Coliform
per 100ml
(Limit,
200/100 mis)
January
253.0
< 2.9
98.9
< 6
February
306.0
< 6.2
98.0
< 9
March
390.0
9.1
97.7
< 4
April
309.0
< 4.9
98.4
< 51
May
297.0
< 3.3
98.9
< 5
June
258.0
<2.8
98.9
<7
July
184.0
< 2.6
98.6
< 9
August
256.0
< 2.7
98.9
< 8
September
400.0
< 2.8
99.3
< 16
October
328.0
< 2.9
99.1
< 19
November
324.0
< 2.7
99.2
19
December
277.0
< 3.0
98.9
24
avg.
298.5
< 3.8
98.7
< 9
Date Jan
NPDES # NC 0039578
TWSA Plant # 1 Daily Flows
2020
Permitted Flow• 3.5mgd
Feb Mar Apr May
Yearly Monthly Avg. 1.316
Yearly Daily Avg. 1.313
4.320
Aug Sep
Yearly Daily Max
Jun July
Oct
Nov
Dec
1
1.085
1.498
1.406
1.218
1.695
0.953
1.203
1.309
1.430
1.538
1.355
1.189
2
0.619
1.037
1.178
1.131
1.405
1.057
1.497
1.364
1.403
1.255
1.002
1.118
3
1.191
0.940
1.675
1.047
1.183
1.046
1.301
1.130
1.374
1.083
1.385
1.208
4
1.450
1.284
1.996
1.163
1.002
1.04
1.894
1.407
1.393
1.197
1.329
1.017
5
1.314
1.246
1.801
1.005
1.076
0.907
1.634
1.289
1.497
1.077
1.418
1.095
6
1.087
1.583
1.604
0.741
1.471
1.29
1.635
1.140
1.231
1.193
1.297
1.075
7
1.175
4.320
1.416
0.959
1.392
0.951
1.348
1.244
1.006
1.192
1.416
1.018
8
1.223
3.553
1.197
1.072
1.146
0.774
1.371
1.618
1.136
1.194
1.089
1.020
9
1.085
2.031
0.872
0.961
1.097
1.063
1.522
1.165
1.311
1.191
0.984
1.002
10
0.968
1.656
1.356
1.056
1.165
1.062
1.008
1.021
1.397
1.410
1.302
1.127
11
1.206
2.377
1.057
1.000
0.914
1.374
0.998
1.288
1.503
1.690
1.369
0.975
12
1.471
3.424
1.140
0.815
1.077
1.161
0.999
1.134
1.379
2.291
1.379
1.080
13
1.223
2.699
0.970
0.938
0.977
1.145
0.931
1.312
1.384
1.716
1.724
0.837
14
1.501
3.457
1.362
2.979
1.046
1.121
1.074
1.270
1.423
1.509
1.230
0.742
15
1.750
2.918
1.018
1.515
1.043
1.01
1.185
1.287
1.509
1.372
1.153
1.713
16
1.579
2.122
0.825
1.275
1.198
1.221
1.230
1.348
1.178
1.358
1.153
1.184
17
1.472
1.966
1.161
1.235
0.918
1.139
1.239
1.278
1.204
1.453
1.325
1.097
18
1.535
1.861
1.236
1.057
0.760
1.125
1.480
1.269
1.717
1.105
1.260
1.092
19
1.344
1.826
1.255
1.002
1.203
1.033
1.053
1.325
1.651
1.061
1.209
1.140
20
1.356
1.721
0.948
1.043
1.288
1.114
0.917
1.364
1.116
1.233
1.182
0.934
21
1.234
1.828
1.129
1.409
1.323
0.984
1.226
1.472
0.958
1.267
1.372
0.806
22
1.387
1.987
1.005
1.160
1.152
1.131
1.283
1.868
1.351
1.357
0.997
1.058
23
1.378
1.415
0.842
1.083
1.495
1.255
1.355
1.544
1.183
1.165
0.837
0.907
24
1.330
1.099
1.620
1.326
1.214
1.314
1.319
1.477
1.259
1.051
1.026
1.023
25
1.463
1.702
1.730
1.423
1.129
1.395
1.650
1.573
1.434
1.175
1.001
1.627
26
1.263
1.964
2.895
1.127
1.051
1.25
1.493
1.590
2.134
1.170
1.156
1.043
27
1.315
1.793
1.693
0.831
1.192
1.51
1.170
1.552
1.203
1.254
0.908
1.152
28
1.377
1.592
1.372
1.113
1.198
1.103
1.267
1.468
1.101
1.237
0.750
1.212
29
1.195
1.698
1.162
0.996
1.136
0.844
1.202
1.674
1.342
1.469
0.848
1.107
30
1.303
1.315
1.626
1.029
1.166
1.423
1.448
1.413
3.061
0.837
1.005
31
1.222
1.274
1.038
1.578
1.113
1.826
0.971
`
`
AVERA( 1.294
2.021
' 1.339
1.177
: 1.162
' 1.118
1.306
' 1.366
1.354
: 1.392
' 1.176
1.083
MAXIM 1.750
4.320
2.895
2.979
1.695
1.510
1.894
1.868 .1
2.134
3.061
1.724
1.713
MINIMU 0.619
0.940
0.825
' 0.741
' 0.760
' 0.774
' 0.917
' 1.021
0.958
' 1.051
' 0.750
' 0.742
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: 3/8/20