Port Colborne Water Treatment Plant - 2024 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, 2024.

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

Inspection rating

The Port Colborne Water Treatment Plant was granted a 100 per cent inspection rating during the 2024 Ministry of Environment, Conservation and Parks annual drinking water system inspection.

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)
January	300.650	262.270	9.698	8.460	6.260	11.170*	3.723	20.626	0.000***
February	305.800	265.490	10.545	9.155	6.480	11.550**	1.477	19.959	0.000***
March	282.478	256.890	9.112	8.287	6.660	9.670	7.733	20.051	0.000***
April	251.700	232.100	8.390	7.737	6.390	9.110	5.609	21.641	0.000***
May	271.440	247.980	8.756	7.999	6.450	9.440	6.790	18.482	0.000***
June	265.860	240.650	8.862	8.022	6.260	9.240	7.497	17.456	508.036
July	270.070	248.070	8.712	8.002	6.010	9.580	7.979	17.405	3.268
August	265.330	241.940	8.559	7.805	5.820	9.300	7.456	18.287	5.288
September	244.030	228.030	8.134	7.601	5.304	9.035	8.062	16.051	2.323
October	235.335	225.211	7.591	7.265	5.406	8.750	2.399	26.713	1.826
November	233.135	220.509	7.771	7.350	5.810	8.680	7.856	15.744	1.764
December	280.100	267.690	9.035	8.635	6.320	10.350	3.465	18.974	2.045

*Jan. 27: Main break on Elm Street caused system water loss.
**Feb. 1: Vehicular accident in the Welland Canal shut down the plant causing a water loss during that time.
***Total waste sludge sensor was offline from January to May for recalibration.

Flow totals

Total flow raw was 3,033.810 ML
Total flow treated was 2,735.980 ML
Total waste sludge was 10.978 ML

Minimums

Minimum day treated was 4.790 ML
Minimum flow rate treated was 3.495 ML
Total waste sludge minimum was 0 ML

Maximums

Maximum day treated was 11.550 ML
Total waste sludge maximum was 10.978 ML

Averages

Total average day raw was 8.313 ML
Total average day treated was 7.499 ML
Total waste sludge average was 0.915 ML

Comparison of actual to system approved flow

Flow rates are required by Municipal Drinking Water Licence number 007-101.

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
January	8.460	23.50%	11.170	31.02%	20.626	57.27%
February	9.155	25.41%	11.550	32.04%	19.959	55.41%
March	8.287	23.00%	9.670	26.86%	20.051	55.69%
April	7.737	21.47%	9.110	24.30%	21.641	60.11%
May	7.999	22.19%	9.440	26.22%	18.482	51.33%
June	8.022	22.20%	9.240	25.66%	17.456	48.47%
July	8.002	22.22%	9.580	26.61%	17.405	48.33%
August	7.805	21.66%	9.300	25.83%	18.287	50.77%
September	7.601	21.11%	9.035	25.08%	16.051	44.58%
October	7.265	20.16%	8.750	24.30%	26.713	72.25%
November	7.350	20.41%	8.680	24.11%	15.744	43.72%
December	8.635	23.97%	10.350	28.75%	18.974	52.69%