About this file
Written by GovTribe AI
· Jul 17, 2025
The file is a comprehensive Excel spreadsheet containing historical influent flow and sample data for the Town of Lyons Wastewater Treatment Facility (WWTP) from 2021 to 2025, documenting key water quality parameters. The data tracks monthly and daily measurements of Biochemical Oxygen Demand (BOD), Total Suspended Solids (TSS), average flow rates, and influent flow in million gallons per day (MGD) across multiple years. Concurrently, the related state and local contract opportunity indicates the Town of Lyons is seeking a consultant to prepare design drawings, specifications, cost estimates, analysis, and permitting for facility upgrades.
The data reveals consistent fluctuations in water quality metrics, with average BOD levels ranging from 460-635 mg/L and TSS levels between 511-652 mg/L across the years. Influent flow rates demonstrate seasonal variations, typically ranging from 0.0948 to 0.2143 MGD, with highest flow rates observed during summer months. The historical data provides critical baseline information that will likely inform the scope and requirements of the upcoming wastewater treatment facility upgrade project. The contract opportunity is located in Colorado and seeks professional engineering services to comprehensively assess and design improvements to the existing municipal wastewater infrastructure.
Other files for this state and local contract opportunity
Other files attached to Wastewater Treatment Facility Upgrades - Design RFP, newest first.
File
Type
Posted
2018 SITE LOCATION APPLICATION.pdf PDF
May 30, 2025
2686.9c - PDR Submission to CPDHE 2020.04.24.pdf PDF
May 30, 2025
ADDENDUM 1, 25-WASTEWATER-01.pdf PDF
May 30, 2025
2013 PRELIMINARY ENGINEERING REPORT.pdf PDF
May 30, 2025
25-WASTEWATER-01_RFP 05302025.pdf PDF
May 30, 2025
ADDENDUM 2, 25-WASTEWATER-01-Final.pdf PDF
May 30, 2025
ADDENDUM 3, 25-WASTEWATER-01.pdf PDF
May 30, 2025
Wastewater Treatment Facility Master Plan by JVA Oct 2024.pdf PDF
May 30, 2025
2011 WASTEWATER FEASIBILITY STUDY.pdf PDF
May 30, 2025
General Permit Certification.pdf PDF
May 30, 2025
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Lyons Inf. Flow/Sample Data 2025 Date BOD (mg/L) TSS (mg/L) Average Flow Rate (GPM) Inf Flow (MGD) BOD Day Lbs/day 1/2/25 Thursday 819 1,060 69.1 0.0995 679.63 1/7/25 Tuesday 768 806 71.8 0.1034 662.29 1/16/25 Thursday 617 613 73.7 0.1061 545.97 1/21/25 Tuesday 761 472 79.4 0.1144 726.07 1/28/25 Tuesday 580 385 71.3 0.1027 496.78 2/4/25 Tuesday 652 485 65.8 0.0948 515.49 2/11/25 Tuesday 413 355 72.8 0.1048 360.98 2/18/25 Tuesday 608 444 71.9 0.1036 525.33 2/25/25 Tuesday 325 294 80.3 0.1157 313.60 3/5/25 Wednesday 388 406 82.8 0.1193 386.05 3/11/25 Tuesday 209 288 87.2 0.1256 218.93 3/18/25 Tuesday 337 264 81.2 0.1169 328.56 3/25/25 Tuesday 324 289 84.3 0.1214 328.04 4/1/25 Tuesday 576 548 92.9 0.1338 642.75 4/8/25 Tuesday 398 461 85.3 0.1228 407.61 4/15/25 Tuesday 402 388 88.4 0.1273 426.80 4/22/25 Tuesday 375 422 87.1 0.1254 392.19 4/29/25 Tuesday 556 633 89.9 0.1295 600.50 5/6/25 Tuesday 404 473 92.2 0.1328 447.45 5/13/25 Tuesday 586 597 97.4 0.1402 685.19 5/20/25 Tuesday 328 397 101.7 0.1465 400.75 5/27/25 Tuesday 297 209 117.5 0.1692 419.11 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Saturday 0.0 0.00 Avg. 487 468 35 0.1207 Min. 209 209 0 0.0948 Max 819 1,060 118 0.1692 mg/L mg/L GPM MGD
Lyons Inf. Flow/Sample Data 2024 Date BOD (mg/L) TSS (mg/L) Average Flow Rate (GPM) Inf Flow (MGD) BOD Day Lbs/day 1/2/24 Tuesday 510 570 74.9 0.1079 458.94 1/9/24 Tuesday 339 475 75.7 0.1090 308.17 1/16/24 Tuesday 888 638 84.7 0.1220 903.52 1/25/24 Thursday 1,371 1,225 69.3 0.0998 1141.13 1/30/24 Tuesday 609 644 69.1 0.0995 505.37 2/6/24 Tuesday 906 500 93.8 0.1350 1020.07 2/13/24 Tuesday 507 516 88.7 0.1277 539.96 2/20/24 Tuesday 582 494 89.5 0.1289 625.67 2/27/24 Tuesday 555 597 92.4 0.1331 616.08 3/5/24 Tuesday 422 518 91.5 0.1317 463.52 3/11/24 Monday 618 518 85.3 0.1228 632.93 3/20/24 Wednesday 405 516 96.4 0.1388 468.82 3/26/24 Tuesday 374 331 84.4 0.1215 378.98 4/2/24 Tuesday 591 462 85.4 0.1230 606.26 4/9/24 Tuesday 606 741 76.9 0.1108 559.99 4/16/24 Tuesday 702 486 75.5 0.1087 636.40 4/23/24 Tuesday 723 358 76.9 0.1107 667.50 4/30/24 Tuesday 504 345 99.1 0.1427 599.82 5/7/24 Tuesday 459 375 102.8 0.1480 566.55 5/14/24 Tuesday 426 336 94.7 0.1363 484.25 5/21/24 Tuesday 666 527 103.7 0.1493 829.28 5/28/24 Tuesday 356 441 116.1 0.1672 496.42 6/4/24 Tuesday 543 706 107.8 0.1553 703.29 6/11/24 Tuesday 411 385 148.8 0.2143 734.56 6/18/24 Tuesday 432 306 134.7 0.1939 698.60 6/25/24 Tuesday 678 664 123.5 0.1779 1005.94 7/1/24 Monday 720 434 124.2 0.1789 1074.26 7/9/24 Tuesday 1,221 1,210 91.6 0.1319 1343.16 7/16/24 Tuesday 627 597 116.6 0.1679 877.98 7/23/24 Tuesday 325 403 107.8 0.1553 420.94 7/30/24 Tuesday 408 422 101.4 0.1460 496.80 8/6/24 Tuesday 507 419 98.3 0.1415 598.32 8/13/24 Tuesday 519 479 109.7 0.1579 683.46 8/20/24 Tuesday 322 506 94.4 0.1360 365.23 8/27/24 Tuesday 555 528 94.5 0.1361 629.97 9/3/24 Tuesday 399 431 99.6 0.1434 477.19 9/10/24 Tuesday 423 482 90.2 0.1299 458.26 9/17/24 Tuesday 305 403 87.0 0.1253 318.73 9/24/24 Tuesday 345 306 89.4 0.1287 370.31 10/1/24 Tuesday 344 377 96.5 0.1390 398.79 10/8/24 Tuesday 349 376 81.5 0.1174 341.71 10/14/24 Monday 65 56 79.0 0.1137 61.64 10/22/24 Tuesday 517 807 77.2 0.1112 479.47 10/29/24 Tuesday 442 632 76.7 0.1105 407.33 11/5/24 Tuesday 490 513 77.4 0.1115 455.66 11/12/24 Tuesday 410 478 76.9 0.1108 378.87 11/19/24 Tuesday 558 441 81.9 0.1180 549.14 11/26/24 Tuesday 474 417 71.3 0.1026 405.59 12/5/24 Thursday 490 507 70.1 0.1009 412.34 12/11/24 Wednesday 254 615 74.2 0.1068 226.24 12/17/24 Tuesday 291 903 75.6 0.1088 264.05 12/26/24 Thursday 350 660 71.3 0.1026 299.49 Avg. 517 521 91 0.1317 566.2870 Min. 65 56 69 0.0995 61.6368 Max 1,371 1,225 149 0.2143 1343.1562 mg/L mg/L GPM MGD Pounds
Lyons Inf. Flow/Sample Data 2022 Date BOD (mg/L) TSS (mg/L) Average Flow Rate (GPM) Inf Flow (MGD) BOD Day Lbs/day 1/3/23 Tuesday 552 406 73.8 0.1063 489.37 1/9/23 Monday 537 622 76.7 0.1105 494.88 1/19/23 Thursday 1,218 607 72.3 0.1041 1057.46 1/23/23 Monday 1,008 834 78.8 0.1134 953.32 1/31/23 Tuesday 494 566 72.8 0.1048 431.77 2/6/23 Tuesday 792 550 77.2 0.1112 734.51 2/13/23 Monday 894 990 76.4 0.1100 820.16 2/20/23 Monday 954 794 71.5 0.1029 818.71 3/1/23 Wednesday 636 550 69.0 0.0993 526.71 3/7/23 Tuesday 405 464 68.1 0.0980 331.01 3/15/23 Wednesday 768 722 70.1 0.1010 646.92 3/20/23 Monday 678 636 72.2 0.1039 587.50 3/27/23 Monday 876 750 74.1 0.1067 779.53 4/5/23 Wednesday 744 781 70.7 0.1018 631.66 4/10/23 Monday 438 516 81.0 0.1167 426.30 4/17/23 Monday 933 545 79.8 0.1149 894.06 4/24/23 Monday 685 1,110 82.4 0.1187 678.12 5/1/23 Monday 636 480 85.0 0.1224 649.24 5/8/23 Monday 429 537 90.4 0.1302 465.84 5/15/23 Monday 363 397 100.2 0.1443 436.86 5/22/23 Monday 438 550 113.7 0.1637 597.98 5/30/23 Tuesday 696 856 109.2 0.1572 912.49 6/5/23 Monday 687 633 124.1 0.1787 1023.88 6/12/23 Monday 340 363 142.8 0.2056 583.00 6/19/23 Monday 336 414 151.6 0.2183 611.73 6/26/23 Monday 303 464 155.0 0.2232 564.03 7/4/23 Tuesday 822 705 116.7 0.1680 1151.72 7/11/23 Tuesday 597 515 110.3 0.1589 791.16 7/18/23 Tuesday 368 516 97.6 0.1406 431.52 7/24/23 Monday 612 1,010 105.0 0.1512 771.74 8/1/23 Tuesday 494 450 115.0 0.1656 682.27 8/7/23 Monday 999 1,140 102.2 0.1472 1226.42 8/15/23 Tuesday 807 910 93.5 0.1346 905.91 8/21/23 Monday 417 577 99.4 0.1431 497.67 8/28/23 Monday 756 850 113.9 0.1640 1034.03 9/5/23 Tuesday 927 843 94.3 0.1358 1049.89 9/11/23 Monday 501 691 92.2 0.1327 554.47 9/18/23 Monday 822 1,060 93.3 0.1343 920.69 9/25/23 Monday 936 1,030 88.9 0.1280 999.20 10/2/23 Monday 380 541 84.4 0.1216 385.37 10/9/23 Monday 720 740 90.6 0.1304 783.03 10/17/23 Tuesday 522 500 81.8 0.1178 512.84 10/24/23 Tuesday 474 690 79.0 0.1137 449.47 10/31/23 Tuesday 434 588 81.5 0.1173 424.57 11/6/23 Monday 525 458 90.3 0.1301 569.64 11/14/23 Tuesday 310 422 78.7 0.1133 292.93 11/20/23 Monday 966 625 82.2 0.1183 953.08 11/28/23 Tuesday 633 632 79.5 0.1145 604.47 12/5/23 Tuesday 264 528 77.0 0.1109 244.18 12/12/23 Tuesday 834 523 78.5 0.1130 785.98 12/19/23 Tuesday 552 609 81.0 0.1166 536.79 12/26/23 Tuesday 519 620 79.9 0.1150 497.77 Avg. 635 652 91 0.1309 Min. 264 363 68 0.0980 Max 1,218 1,140 155 0.2232 mg/L mg/L GPM MGD
Lyons Inf. Flow/Sample Data 2022 Date BOD (mg/L) TSS (mg/L) Average Flow Rate (GPM) Inf Flow (MGD) BOD Day Lbs/day 1/3/22 Monday 756 750 77.7 0.1119 705.53 1/10/22 Monday 388 384 80.8 0.1163 376.34 1/17/22 Monday 504 647 74.7 0.1075 451.86 1/24/22 Monday 258 952 79.2 0.1140 245.30 2/1/22 Tuesday 819 807 70.8 0.1020 696.71 2/7/22 Monday 627 607 80.3 0.1156 604.49 2/14/22 Monday 549 645 75.1 0.1081 494.95 2/24/22 Thursday 456 797 76.4 0.1100 418.33 3/1/22 Tuesday 636 591 78.6 0.1132 600.44 3/8/22 Tuesday 660 660 69.4 0.0999 549.89 3/18/22 Friday 345 345 74.3 0.1070 307.87 3/22/22 Tuesday 370 370 59.9 0.0862 266.00 3/31/22 Thursday 303 303 70.0 0.1008 254.72 4/4/22 Monday 504 333 73.1 0.1052 442.19 4/15/22 Friday 489 462 70.6 0.1016 414.35 4/22/22 Friday 723 712 77.4 0.1115 672.32 4/25/22 Monday 369 352 84.2 0.1212 372.99 5/2/22 Monday 291 306 86.0 0.1239 300.70 5/9/22 Monday 216 397 89.3 0.1286 231.67 5/16/22 Monday 378 434 88.5 0.1275 401.95 5/23/22 Monday 327 314 91.4 0.1316 358.90 5/31/22 Tuesday 417 429 94.4 0.1359 472.63 6/6/22 Monday 316 253 111.5 0.1605 422.99 6/13/22 Monday 315 279 142.2 0.2047 537.77 6/20/22 Monday 287 324 143.4 0.2065 494.27 6/27/22 Monday 372 350 99.9 0.1439 446.45 7/4/22 Monday 304 364 108.8 0.1567 397.29 7/11/22 Monday 465 409 86.2 0.1241 481.27 7/18/22 Monday 531 353 93.3 0.1343 594.75 7/25/22 Monday 315 258 114.4 0.1647 432.68 8/1/22 Monday 462 524 121.5 0.1750 674.29 8/8/22 Monday 308 269 130.3 0.1876 481.89 8/15/22 Monday 390 400 107.4 0.1546 502.85 8/22/22 Monday 564 538 97.2 0.1400 658.53 8/29/22 Monday 436 397 93.3 0.1343 488.35 9/6/22 Tuesday 459 465 85.8 0.1235 472.77 9/12/22 Monday 495 609 85.3 0.1228 506.96 9/21/22 Monday 394 397 74.9 0.1079 354.56 9/26/22 Monday 342 371 85.3 0.1229 350.55 10/3/22 Monday 330 330 85.1 0.1226 337.42 10/10/22 Monday 248 371 88.5 0.1275 263.71 10/17/22 Monday 537 578 85.4 0.1230 550.87 10/24/22 Monday 346 365 88.8 0.1278 368.78 11/1/22 Tuesday 687 522 75.1 0.1081 619.37 11/7/22 Monday 525 465 85.6 0.1232 539.43 11/15/22 Tuesday 675 658 72.2 0.1040 585.47 11/21/22 Monday 693 1,190 75.1 0.1081 624.78 11/29/22 Tuesday 383 822 67.5 0.0972 310.48 12/6/22 Tuesday 521 791 66.6 0.0959 416.70 12/12/22 Monday 510 512 73.1 0.1053 447.88 12/19/22 Monday 669 1,034 74.7 0.1076 600.35 12/29/22 Thursday 670 784 80.1 0.1154 644.83 Avg. 460 511 87 0.1252 Min. 216 253 60 0.0862 Max 819 1,190 143 0.2065 mg/L mg/L GPM MGD
2021 Table
Town of Lyons WWTP Data Tables: 2021 Parameter Jan Feb March April May June July Aug Sept Oct Nov Dec 2021 2021 2021 2020 2020 2020 2020 2020 2020 2020 2020 2019 Average Influent Flow 0.106 0.108 0.104 0.112 0.122 0.151 0.134 0.130 0.122 0.112 0.113 0.109 MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD Maximum Influent flow 0.121 0.120 0.115 0.14 0.139 0.178 0.142 0.141 0.143 0.127 0.128 0.151 MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD Average Influent TSS 542 421 387 427 417 322 370 308 503 577 450 603 mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L Average Influent BOD Loading Lbs/Day 433 401 334 352 383 421 377 336 453 495 382 495 lbs./day lbs./day lbs./day lbs./day lbs./day lbs./day lbs./day lbs./day lbs./day lbs./day lbs./day lbs./day Average Effluent Flow 0.126 0.131 0.133 0.146 0.140 0.157 0.143 0.138 0.130 0.123 0.126 0.124 MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD Maximum Effluent Flow 0.188 0.163 0.2 0.176 0.151 0.207 0.192 0.184 0.153 0.151 0.151 0.193 MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD Average Effluent TSS 5 5 5 6 5 6 5 <5 <5 5 5 9 mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L BOD % Removal 99% 99% 99% 98% 99% Quarterly 99.00% 99% Quarterly 99.00% Quarterly Quarterly
2020 Table
Town of Lyons WWTP Data Tables: 2020 Parameter Jan Feb March April May June July Aug Sept Oct Nov Dec 2020 2020 2020 2020 2020 2020 2020 2020 2020 2020 2020 2019 Average Influent Flow 0.0974 0.1081 0.1094 0.109 0.1223 0.1512 0.1338 0.1299 0.1223 0.1123 0.1128 0.1062 MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD Maximum Influent flow 0.1182 0.1424 0.1424 0.124 0.139 0.1778 0.142 0.1405 0.1433 0.1274 0.1275 0.1252 MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD Average Influent TSS 419 462 416 390 417 322 370 461 508 577 477 414 mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L Average Influent BOD Loading Lbs/Day 361 460 492 365 383 421 377 499 469 495 413 453 lbs./day lbs./day lbs./day lbs./day lbs./day lbs./day lbs./day lbs./day lbs./day lbs./day lbs./day lbs./day Average Effluent Flow 0.1044 0.1041 0.182 0.117 0.1397 0.1574 0.1433 0.1443 0.1301 0.1301 0.1258 0.1077 MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD Maximum Effluent Flow 0.1388 0.1274 0.156 0.156 0.151 0.2071 0.1918 0.324 0.1527 0.1527 0.1512 0.1398 MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD Average Effluent TSS 5 < 5.0 < 5.0 <5 5 6 5 <5.0 <5.0 5 5 < 9 mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L BOD % Removal 99% 99% Quarterly 99% 99% Quarterly 99.00% 99% Quarterly 99.00% Quarterly Quarterly
Lyons Inf. Flow/Sample Data 2019 Date BOD (mg/L) TSS (mg/L) Average Flow Rate (GPM) Inf Flow (MGD) BOD Day Lbs/day 1/7/20 Tuesday 489 442 71.3 0.1027 418.837302 1/14/20 Tuesday 393 319 69.8 0.1005 329.40081 1/21/20 Tuesday 429 500 70.6 0.1016 363.510576 1/28/20 Tuesday 396 416 69.7 0.1004 331.585056 2/4/20 Tuesday 696 488 70.4 0.1014 588.590496 2/10/20 Monday 486 73.1 0.1053 426.806172 2/17/20 Monday 282 387 71.8 0.1034 243.184392 2/24/20 Monday 375 485 74.4 0.1072 335.268 3/2/20 Monday 341 456 81.6 0.1175 334.16295 3/9/20 Monday 338 445 71.3 0.1026 289.221192 3/16/20 Monday 249 347 73.8 0.1063 220.748958 3/23/20 Monday 414 727 77.0 0.1109 382.911084 3/30/20 Monday 444 484 74.1 0.1067 395.105832 4/7/20 Tuesday 366 339 73.8 0.1062 324.169128 4/14/20 Tuesday 411 341 81.9 0.1179 404.130546 4/21/20 Tuesday 351 477 80.0 0.1152 337.229568 4/27/20 Monday 435 403 75.3 0.1085 393.62715 5/4/20 Monday 615 484 94.0 0.1354 694.48014 5/11/20 Monday 260 365 97.6 0.1406 304.87704 5/18/20 Monday 366 341 96.8 0.1394 425.510136 5/26/20 Tuesday 290 479 102.9 0.1482 358.43652 6/1/20 Monday 387 353 103.2 0.1486 479.618388 6/8/20 Monday 264 123.5 0.1778 391.472928 6/15/20 Monday 378 106.9 0.1540 485.48808 6/22/20 Monday 357 105.6 0.1521 452.859498 6/29/20 Monday 285 291 102.9 0.1482 352.25658 7/6/20 Monday 343 347 96.7 0.1393 398.484366 7/14/20 Tuesday 341 351 88.9 0.1280 364.02432 7/20/20 Monday 291 391 95.6 0.1377 334.189638 7/27/20 Monday 375 389 98.6 0.1420 444.105 8/3/20 Monday 209 379 96.6 0.1391 242.459646 8/10/20 Monday 273 494 91.7 0.1320 300.54024 8/17/20 Monday 358 359 91.1 0.1312 391.726464 8/24/20 Monday 399 588 92.1 0.1326 441.247716 8/31/20 Monday 382 486 90.2 0.1299 413.845812 9/7/20 Monday 459 509 85.0 0.1224 468.554544 9/15/20 Tuesday 483 542 82.4 0.1186 477.746892 9/22/20 Tuesday 456 550 85.5 0.1231 468.154224 9/28/20 Monday 441 429 81.9 0.1179 433.629126 10/5/20 Monday 616 494 86.4 0.1244 639.097536 10/12/20 Monday 502 597 82.7 0.1191 498.633588 10/19/20 Monday 392 447 67.9 0.0978 319.735584 10/26/20 Monday 606 771 84.6 0.1218 615.582072 11/2/20 Monday 435 503 84.9 0.1222 443.32938 11/9/20 Monday 310 354 83.7 0.1205 311.5407 11/16/20 Monday 331 326 88.5 0.1275 351.96885 11/23/20 Monday 546 618 80.2 0.1155 525.94542 11/30/20 Monday 464 584 78.8 0.1134 438.830784 12/7/21 Monday 627 600 80.6 0.1160 606.58488 12/14/21 Monday 381 474 79.2 0.1140 362.23956 12/21/21 Monday 840 843 77.8 0.1120 784.6272 12/28/21 Monday 411 512 77.8 0.1120 383.90688 Avg. 411 465 85 0.1225 Min. 209 291 68 0.0978 Max 840 843 123 0.1778 mg/L mg/L GPM MGD
2019 Table
Parameter Jan Feb March April May June July Aug Sept Oct Nov Dec 2019 2019 2019 2019 2019 2019 2019 2019 2019 2019 2019 2019 Average Influent Flow 0.107 0.1025 0.1043 0.1077 0.1223 0.1678 0.138 0.14 0.13 0.131 0.113 0.1062 MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD Maximum Influent flow 0.125 0.1178 0.1144 0.122 0.1392 0.2388 0.183 0.17 0.15 0.153 0.134 0.1252 MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD Average Influent TSS 2039 681 416 846 808 402 1793 439.6 610 566 483 414 mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L Average Influent BOD Loading lbs/day 1,017l bs/day 627 lbs/day 361 lbs/day 816 lbs/day 824 lbs/day 635 lbs/day 973 lbs/day 702 lbs/day 641 lbs/day 528 lbs/day 455 lbs/day 453 lbs/day Average Effluent Flow 0.1225 0.1121 0.1142 0.1134 0.1341 0.1738 0.139 0.144 0.15 0.132 0.113 0.1077 MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD Maximum Effluent Flow 0.15 0.1395 0.1515 0.1474 0.2431 0.2312 0.179 0.19 0.18 0.179 0.142 0.1398 MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD Average Effluent TSS 37.71 < 5.0 < 5.0 9 5 6 5 <6.6 5 5 5 < 9.0 mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L BOD % Removal 98.9% 99.0% Quarterly 99.0% Quarterly Quarterly 99.0% Quarterly Quarterly 99.1% Quarterly Quarterly
Lyons Inf. Flow/Sample Data 2019 Date BOD (mg/L) TSS (mg/L) Average Flow Rate (GPM) Inf Flow (MGD) BOD Day Lbs/day 1/18/19 Friday 1,440 2,039 97.2 0.1400 1681.344 1/29/19 Tuesday 594 72.2 0.1040 515.21184 2/4/19 Monday 377 513 72.8 0.1048 329.510064 2/6/19 Wednesday 789 623 70.0 0.1008 663.290208 2/7/19 Thursday 825 666 73.2 0.1054 725.2047 2/8/19 Friday 741 803 73.2 0.1054 651.365676 3/5/19 Tuesday 415 416 77.2 0.1112 384.87432 4/2/19 Tuesday 1,374 845 69.7 0.1003 1149.353748 4/16/19 Tuesday 444 83.3 0.1200 444.3552 4/30/19 Tuesday 274 80.6 0.1160 265.07856 5/7/19 Tuesday 681 333 79.5 0.1145 650.30733 5/13/19 Monday 3,412 209 84.1 0.1211 3446.031288 5/20/19 Monday 1,233 452 91.6 0.1319 1356.356718 5/27/19 Monday 978 1,329 94.0 0.1354 1104.392808 6/3/19 Monday 432 503 85.3 0.1229 442.793952 6/11/19 Tuesday 642 338 108.0 0.1555 832.59054 6/18/19 Tuesday 288 317 116.3 0.1674 402.081408 7/1/19 Monday 229 184 14.8 0.0213 40.7564124 7/8/19 Monday 519 585 124.3 0.1790 774.79434 7/15/19 Monday 367 367 118.5 0.1707 522.475146 7/22/19 Monday 360 397 108.0 0.1555 466.8732 7/30/19 Monday 549 533 93.1 0.1340 613.54044 8/5/19 Monday 774 1,350 91.6 0.1319 851.435604 8/12/19 Monday 780 1,180 96.9 0.1396 908.12592 8/19/19 Monday 987 1,473 102.0 0.1469 1209.219102 8/26/19 Monday 849 3,170 90.8 0.1307 925.442262 9/2/19 Monday 945 916 89.7 0.1291 1017.47583 9/9/19 Monday 364 418 89.7 0.1291 391.916616 9/16/19 Monday 498 481 85.8 0.1236 513.350352 9/25/19 Monday 355 338 83.8 0.1207 357.35649 10/1/19 Tuesday 561 717 92.1 0.1326 620.400924 10/11/19 Friday 489 469 91.5 0.1317 537.106842 10/14/19 Monday 423 391 91.3 0.1315 463.90833 10/21/19 Monday 459 681 87.2 0.1256 480.804336 10/29/19 Tuesday 335 572 82.8 0.1192 333.03288 11/4/19 Monday 441 366 78.8 0.1135 417.44619 11/11/19 Monday 603 676 90.3 0.1300 653.7726 11/18/19 Monday 444 538 74.3 0.1070 396.21672 11/25/19 Monday 444 256 66.7 0.0960 355.48416 12/2/19 Monday 402 473 73.2 0.1054 353.372472 12/9/19 Monday 426 467 72.6 0.1046 371.627064 12/17/19 Tuesday 346 281 72.7 0.1047 302.126508 12/23/19 Monday 639 436 72.3 0.1041 554.775966 12/30/19 Monday 396 426 66.0 0.0950 313.7508
Avg. 657 671 85 0.1220 Min. 229 184 15 0.0213 Max 3,412 3,170 124 0.1790 mg/L mg/L GPM MGD
2018 Table
Parameter Dec Nov Oct Sept Aug July June May April March Feb Jan 2018 2018 2018 2018 2018 2018 2018 2018 2018 2018 2018 2018 Average Influent Flow 0.1093MGD 0.11 MGD 0.17 MGD 0.13 MGD 0.14 MGD 0.1433 MGD 0.1491 MGD 0.1368 MGD 0.1109 MGD 0.1060 MGD 0.1060 MGD 0.1039 MGD Maximum Influent flow 0.1790 MGD 0.124 MGD 0.13 MGD 0.15 MGD 0.17 MGD 0.1730 MGD 0.1680 MGD 0.1700 MGD 0.1220 MGD 0.1210 MGD 0.1290 MGD 0.1220 MGD Average Influent TSS 1070 mg/L 716 mg/L 442 mg/L 450 mg/L 439.6 mg/L 570.8 mg/L 364 mg/L 743 mg/L 1148 mg/L 1647 mg/L 1139 mg/L 1207 mg/L Average Influent BOD Loading Lbs/Day Quarterly 783 lbs./day 649 lbs/day 655 lbs/day 702 lbs/day 684 lbs/day 567 lbs./day 748 lbs./day 954 lbs./day 1,196 lbs./day 1,055 lbs./day 1,084 lbs./day Average Effluent Flow 0.1228 MGD 0.12 MGD 0.12 MGD 0.13 MGD 0.14 MGD 0.1531 MGD 0.1577 MGD 0.1420 MGD 0.1179 MGD 0.1145 MGD 0.1499 MGD 0.1146 MGD Maximum Effluent Flow 0.1440 MGD 0.14 MGD 0.15 MGD 0.16 MGD 0.19 MGD 0.1890 MGD 0.1890 MGD 0.2000 MGD 0.1380 MGD 0.1330 MGD 0.1020 MGD 0.1900 MGD Average Effluent TSS < 5.0 mg/L 13.0 mg/L 18.0 mg/L 15.0 mg/L <6.6 mg/L 0 mg/L 7 mg/L 8 mg/L < 5.0 mg/L < 5.0 mg/L < 5.0 mg/L < 5.0 mg/L BOD % Removal Quarterly 99.10% 99.00% Quarterly 98.90% 100.00% Quarterly Quarterly 99.70% Quarterly Quarterly 88.90%
Lyons Inf. Flow/Sample Data 2018 Date BOD (mg/L) TSS (mg/L) Average Flow Rate (GPM) Inf Flow (MGD) BOD Lbs/day 1/11/18 1,146 971 70.1 0.1010 965.32164 1/17/18 1,143 1,183 69.4 0.1000 953.262 1/23/18 1,653 1,477 71.5 0.1030 1419.96006 1/31/18 1,179 1,197 70.8 0.1020 1002.95172 2/5/18 814 - 76.4 0.1100 746.7636 2/6/18 1,072 - 70.1 0.1010 902.98848 2/7/18 1,060 - 71.5 0.1030 910.5612 2/8/18 846 - 70.8 0.1020 719.67528 2/9/18 960 929 73.6 0.1060 848.6784 2/15/18 1,220 - 70.1 0.1010 1027.6548 2/20/18 1,272 1,416 75.7 0.1090 1156.32432 2/28/18 1,104 1,071 72.2 0.1040 957.56544 3/7/18 999 1,197 75.0 0.1080 899.81928 3/14/18 1,428 2,048 73.6 0.1060 1262.40912 3/23/18 1,212 1,695 65.3 0.0940 950.15952 3/30/18 1,144 1,420 72.2 0.1040 992.25984 4/3/18 1,173 1,455 75.0 0.1080 1056.54456 4/10/18 1,206 1,580 76.3 0.1100 1106.3844 4/18/18 900 888 76.3 0.1100 825.66 4/25/18 909 667 75.6 0.1090 826.33554 5/6/18 630 526 86.8 0.1250 656.775 5/20/18 867 959 107.6 0.1550 1120.7709 6/11/18 411 328 99.9 0.1440 493.59456 6/26/18 564 400 93.7 0.1350 635.0076 7/3/18 531 412 89.6 0.1290 571.28166 7/5/18 480 528 97.2 0.1400 560.448 7/12/18 678 561 97.9 0.1410 797.28732 7/16/18 468 468 96.5 0.1390 542.53368 7/23/18 774 885 100.0 0.1440 929.54304 8/1/18 684 545 87.5 0.1260 718.77456 8/6/18 699 1,018 93.1 0.1340 781.17444 8/10/18 1,275 273 93.1 0.1340 1424.889 8/11/18 489 376 91.0 0.1310 534.25206 8/12/18 384 246 92.4 0.1330 425.94048 8/13/18 591 552 86.8 0.1250 616.1175 8/14/18 591 570 95.1 0.1370 675.26478 8/15/18 468 320 98.6 0.1420 554.24304 8/16/18 343 226 101.4 0.1460 417.65052 8/17/18 492 270 111.1 0.1600 656.5248 9/8/18 468 231 83.3 0.1200 468.3744 9/27/18 741 669 84.0 0.1210 747.77274 10/1/18 768 429 90.3 0.1300 832.6656 10/13/18 543 306 84.7 0.1220 552.49164 10/22/18 636 591 84.7 0.1220 647.11728 11/1/19 783 716 82.6 0.1190 777.09618 12/6/19 1,137 1,138 72.9 0.1050 995.6709 12/17/19 1,212 1,003 75.0 0.1080 1091.67264 Avg. 854 803 84 0.1204 Min. 343 226 65 0.0940 Max 1,653 2,048 111 0.1600 mg/L mg/L GPM MGD
2017 Table
Parameter December November October September August July June May April March February January 2017 2017 2017 2017 2017 2017 2017 2017 2017 2017 2017 2017 Average Influent Flow 0.1056 MGD 0.1047 MGD 0.15 MGD 0.15 MGD 0.15 MGD 0.1683 MGD 0.2014 MGD 0.1641 MGD 0.1127 MGD 0.1322 MGD 0.1352 MGD 0.1069 MGD Maximum Influent flow 0.1450 MGD 0.124 MGD 0.155 MGD 0.2 MGD 0.18 MGD 0.2 MGD 0.199 MGD 0.263 MGD 0.129 MGD 0.95 MGD 0.96 MGD 0.1340 MGD Average Influent TSS 1003 mg/L 1181 mg/L 539 mg/L 1250 mg/L 732 mg/L 12 mg/L 2740 mg/L 379 mg/L 1,092 mg/L 461 mg/L 144 315 mg/L Average Influent BOD Loading Lbs/Day 724.78 lbs./day Quarterly Quarterly 2,281.8 lbs/day Quarterly Quarterly 1,824 lbs/day Quarterly Quarterly 393.61 lbs/day Quarterly Quarterly Average Effluent Flow 0.1116 MGD 0.1147 MGD 0.116 MGD 0.15 MGD 0.17 MGD 0.17 MGD 0.169 MGD 0.1704 MGD 0.1177 MGD 0.1132 MGD 0.1718 MGD 0.1121 MGD Maximum Effluent Flow 0.1630 MGD 0.14 MGD 0.139 MGD 0.18 MGD 0.2 MGD 0.2 MGD 0.201 MGD 0.294 MGD 0.133 MGD 0.15 MGD 0.99 MGD 0.16 MGD Average Effluent TSS < 5.0 mg/L < 5.0 mg/L 18.0 mg/L 10.0 mg/L 12.0 mg/L 12.0 mg/L < 5.0 mg/L < 5.0 mg/L 10.0 mg/L 6.0 mg/L < 5.0 mg/L 6.0 mg/L BOD % Removal Quarterly Quarterly 99.3% Quarterly Quarterly 99.2% Quarterly Quarterly 98.3% Quarterly Quarterly 98.4%
Lyons Inf. Flow/Sample Data 2017 Date BOD (mg/L) TSS (mg/L) Inf Flow (MGD) 1/3/17 357 315 0.1090 2/7/17 - 144 0.0990 3/7/17 - 461 0.1010 4/4/17 876 1,092 0.1050 5/1/17 - 379 0.1140 6/7/17 - 297 0.1870 6/19/17 381 353 0.2220 6/20/17 176 85 0.2100 6/21/17 309 215 0.2130 6/22/17 474 450 0.2140 6/23/17 507 531 0.2190 7/5/17 1,824 2,740 0.1810 8/31/17 - 732 0.1270 9/27/17 - 278 0.1160 10/12/17 513 539 0.1130 10/31/17 1,305 - 0.1030 11/15/17 1,179 1,181 0.1070 11/21/17 564 - 0.0950 12/4/17 804 - 0.1010 12/6/17 915 1,003 0.1000 12/14/17 912 - 0.1070 12/20/17 777 - 0.1000
Avg. 742 635 0.1383 Min. 176 85 0.0950 Max 1,824 2,740 0.2220
Plant Data Town of Lyons WWTP Month Influent Flow (MGD) BOD (lbs/day) Aug-16 0.1226 Sep-16 0.1163 734.52 Oct-16 0.1103 Nov-16 0.1069 Dec-16 0.1076 415.03 Average 0.1127 574.78 Total 0.5637
File details come from the government source that posted it.
Updated Jul 17, 2025 .