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Port Colborne Water Treatment Plant - 2020 Summary Report

Prepared under Ontario Regulation 170/03

The Port Colborne 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 213.860 208.780 6.899 6.735 8.130 4.840 27.591 3.897 2.852
Feb 199.550 196.190 7.127 7.024 7.938 6.100 17.128 4.277 1.711
Mar 225.510 219.090 7.275 7.067 8.858 5.420 12.841 3.846 1.932
Apr 206.930 204.240 6.898 6.808 7.900 4.590 12.749 3.682 2.585
May 225.330 218.570 7.269 7.051 9.070 5.170 21.678 3.887 2.851
Jun 228.870 223.440 7.629 7.448 8.625 6.180 16.451 3.703 2.491
Jul 245.660 239.220 7.925 7.717 9.574 5.690 16.431 3.754 2.609
Aug 226.180 221.330 7.296 7.140 9.340 4.690 16.708 3.692 1.640
Sep 204.540 201.240 6.818 6.708 8.110 4.550 12.742 3.897 1.562
Oct 210.440 207.430 6.788 6.691 10.483 4.010 17.764 3.497 1.553
Nov 184.850 178.950 6.162 5.965 6.910 3.300 16.482 3.621 2.306
Dec 190.030 189.080 6.310 6.099 7.730 4.020 12.574 4.133 1.612
Total 2561.750 2507.560             25.704
Minimum           3.300   3.497 1.553
Maximum         10.483   27.591   25.704
Average     7.018 6.871         2.142

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 # 007-101 and Drinking Water Works Permit # 007-201.

Maximum daily flow: 36 ML
Maximum flow rate: 36 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 6.735 18.7% 8.130 22.6% 27.591 76.6%
Feb 7.024 19.5% 7.938 22.1% 17.128 47.6%
Mar 7.067 19.6% 8.858 24.6% 12.841 35.7%
Apr 6.808 18.9% 7.900 21.9% 12.749 35.4%
May 7.051 19.6% 9.070 25.2% 21.678 60.2%
Jun 7.448 20.7% 8.625 24.0% 16.451 45.7%
Jul 7.717 21.4% 9.574 26.6% 16.431 45.6%
Aug 7.140 19.8% 9.340 25.9% 16.708 46.4%
Sep 6.708 18.6% 8.110 22.5% 12.742 35.4%
Oct 6.691 18.6% 10.483 29.1% 17.764 49.3%
Nov 5.965 16.6% 6.910 19.2% 16.482 45.8%
Dec 6.099 16.9% 7.730 21.5% 12.574 34.9%
**A temporary exceedance of the rated capacity or maximum flow rate are permitted for the purposes of fire protection and system maintenance activities
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