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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