Grimsby Water Treatment Plant - 2020 Summary Report

Prepared under Ontario Regulation 170/03

The Grimsby Water Treatment Plant was operated in such a way that at no time did it fail to meet or exceed the requirements of the Safe Drinking Water Act, associated regulations, the system's approval or any order that may have been issued from Jan. 1, to Dec. 31, 2020.

Summary of Flows

Date Total Flow Raw (ML) Total Flow Treated (ML) Average Day Raw (ML) Average Day Treated (ML) Maximum Day Treated (ML) Minimum Day Treated (ML) Maximum Flow Rate Treated (ML/d) Minimum Flow Rate Treated (ML/d) Waste Sludge (ML)
Jan 355.286 400.345 11.461 12.938 12.563 9.383 16.786 6.823 0.607
Feb 331.083 372.669 11.417 12.879 12.920 9.975 17.375 6.902 3.772
Mar 395.187 402.080 12.748 12.999 17.916 10.129 17.345 7.605 3.209
Apr 404.926 402.881 13.498 13.470 19.589 10.366 19.197 7.978 3.252
May 446.295 479.691 14.397 15.498 22.120 10.825 29.145 8.996 1.561
Jun 594.249 611.073 19.808 20.392 26.240 15.576 35.423 11.979 4.900
Jul 714.968 712.718 23.063 23.055 28.766 14.141 35.044 9.672 1.734
Aug 638.152 635.407 20.586 20.549 24.836 13.829 30.961 9.633 2.688
Sep 518.823 526.420 17.294 17.570 20.409 13.514 26.141 4.051 2.211
Oct 410.230 427.321 13.233 13.814 15.979 10.613 25.193 7.133 1.171
Nov 349.625 388.834 11.654 12.984 14.169 10.038 18.317 8.176 4.640
Dec 357.738 396.305 11.179 12.740 12.814 8.336 18.192 4.051 0.520
Total 5516.562 5755.744             30.265
Minimum           8.336   4.051 0.520
Maximum         28.766   35.423   4.900
Average     15.028 15.741         2.522

The flow rates are moments in time, and can be affected by various circumstances, such as pump changes or valve position and therefore not unusual to have higher or lower than normal flows.

Comparison of Actual to System Approved Flow

Flow rates as set in the Municipal Drinking Water Licence # 007-105 and Drinking Water Works Permit # 007-205.

Maximum daily flow: 44.000 ML
Maximum flow rate: 44.000 ML/day

Date Average Day Treated (ML) % of Rated Capacity Maximum Day Treated (ML) % of Rated Capacity Maximum Flow Rate Treated (ML/d) % of Rated Capacity
Jan 12.938 29.4% 12.563 28.6% 16.786 38.2%
Feb 12.879 29.3% 12.920 29.4% 17.375 39.5%
Mar 12.999 29.5% 17.916 40.7% 17.345 39.4%
Apr 13.470 30.6% 19.589 44.5% 19.197 43.6%
May 15.498 35.2% 22.120 50.3% 29.145 66.2%
Jun 20.392 46.3% 26.240 59.6% 35.423 80.5%
Jul 23.055 52.4% 28.766 65.4% 35.044 79.6%
Aug 20.549

46.7%

 24.836 56.4% 30.961 70.4%
Sep 17.570 39.9% 20.409 46.4% 26.141 59.4%
Oct 13.814 31.4% 15.979 36.3% 25.193 57.3%
Nov 12.984 29.5% 14.169 32.3% 18.317 41.6%
Dec 12.740 29.0% 12.814 29.1% 18.192 41.3%
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