Port Colborne Water Treatment Plant - 2021 Summary Report

This report summarizes the water flows for the Port Colborne Water Treatment Plant, drinking water system number 220002075, from Jan. 1 to Dec. 31, 2021.

This report satisfies the requirements of Ontario Regulation 170/03 - Drinking Water Systems.

Summary of non-compliance

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 for this reporting period.

Summary of water treatment plant flows

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

Month	Total flow raw (ML)	Total flow treated (ML)	Average day raw (ML)	Average day treated (ML)	Minimum day treated (ML)	Maximum day treated (ML)	Minimum flow rate treated (ML/d)	Maximum flow rate treated (ML/d)	Total waste sludge (ML)
Jan.	200.240	196.800	6.459	6.348	4.110	7.430	3.969	12.564	1.930
Feb.	185.340	183.440	6.619	6.551	5.160	7.500	4.021	16.010	1.790
March	205.490	204.040	6.629	6.582	4.400	7.310	3.846	12.708	2.134
April	189.870	189.230	6.329	6.308	4.390	7.160	4.021	15.332	1.739
May	208.110	202.550	6.713	6.534	4.760	8.470	3.549	16.092	2.112
June	209.290	207.190	6.976	6.906	4.980	7.999	3.589	16.841	2.140
July	204.500	201.180	6.597	6.490	4.470	8.080	3.579	12.533	2.169
Aug.	217.860	213.350	7.028	6.882	4.980	9.570	3.590	17.200	1.750
Sept.	189.650	185.190	6.322	6.173	4.220	7.600	3.610	16.667	1.647
Oct.	184.930	180.820	5.965	5.833	4.530	6.931	3.313	27.815	1.691
Nov.	188.430	177.740	6.281	5.925	4.017	9.140	3.846	12.697	1.999
Dec.	193.710	189.290	6.249	6.106	4.310	7.190	3.559	18.718	2.031

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.

Flow totals

Total flow raw was 2377.420 ML
Total flow treated was 2330.820 ML
Total waste sludge was 23.132 ML

Minimums

Minimum day treated was 4.017 ML
Minimum flow rate treated was 3.313 ML
Total waste sludge minimum was 1.647 ML

Maximums

Maximum day treated was 9.570 ML
Maximum flow rate treated was 27.815 ML
Total waste sludge maximum was 2.169 ML

Averages

Total flow treated average was 194.235 ML
Total average day raw was 6.514 ML
Total average day treated was 6.387 ML
Total waste sludge average was 1.928 ML

Comparison of actual to system approved flow

Flow rates are required by Municipal Drinking Water Licence number 007-202.

Maximum daily flow: 36.000 ML
Maximum flow rate: 36.000 ML/day

Month	Average day treated (ML)	Per cent of average day treated rated capacity	Maximum day treated (ML)	Per cent of maximum day treated rated capacity	Maximum flow rate treated (ML/d)	Per cent of maximum flow rate rated capacity
Jan.	6.348	17.6%	7.430	20.6%	12.564	34.9%
Feb.	6.551	18.2%	7.500	20.8%	16.010	44.5%
March	6.582	18.3%	7.310	20.3%	12.708	35.3%
April	6.308	17.5%	7.160	19.9%	15.332	42.6%
May	6.534	18.1%	8.470	23.5%	16.092	44.7%
June	6.906	19.2%	7.999	22.2%	16.841	46.8%
July	6.490	18.0%	8.080	22.4%	12.533	34.8%
Aug.	6.882	19.1%	9.570	26.6%	17.200	47.8%
Sept.	6.173	17.1%	7.600	21.1%	16.667	46.3%
Oct.	5.833	16.2%	6.931	19.3%	27.815	77.3%
Nov.	5.925	16.5%	9.140	25.4%	12.697	35.3%
Dec.	6.106	17.0%	7.190	20.0%	18.718	52.0%