Decew Falls Water Treatment Plant - 2022 Summary Report

This report summarizes the water flows for the Decew Falls Water Treatment Plant, drinking water system number 220002066, from Jan. 1 to Dec. 31, 2022.

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

Summary of non-compliance

The Decew Falls 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.	1621.289	1400.806	52.300	45.187	48.354	57.174	22.267	99.812	0.780
Feb.	1536.207	1322.016	54.865	47.215	50.625	58.242	21.523	77.037	0.953
March	1722.665	1487.154	55.570	47.973	48.642	60.210	24.698	69.866	3.816
April	1634.498	1398.694	54.483	46.623	51.415	59.099	22.042	70.408	5.333
May	1805.569	1606.736	58.244	51.830	49.398	69.822	24.843	81.821	4.336
June	1974.112	1850.799	65.804	61.693	43.363	80.783	28.895	167.580	0.824
July	2206.924	2148.653	71.191	69.311	56.265	83.355	38.701	97.616	5.507
Aug.	2291.415	2029.865	73.917	65.480	59.788	84.393	33.925	105.516	0.520
Sept.	1911.912	1693.780	63.730	56.459	54.847	78.228	24.967	120.144	6.677
Oct.	1668.157	1489.743	53.812	48.056	48.004	60.556	24.712	78.430	0.824
Nov.	1645.844	1433.801	54.861	47.793	48.870	60.556	23.500	99.041	4.509
Dec.	1693.148	1471.819	54.618	47.478	48.261	60.097	25.391	87.013	0.737

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 21711.74 ML
Total flow treated was 19333.86 ML
Total waste sludge was 34.817 ML

Minimums

Minimum day treated was 43.363 ML
Minimum flow rate treated was 38.701 ML
Total waste sludge minimum was 0.520 ML

Maximums

Maximum day treated was 84.393 ML
Maximum flow rate treated was 69.866 ML
Total waste sludge maximum was 6.677 ML

Averages

Total average day raw was 59.449 ML
Total average day treated was 52.925 ML
Total waste sludge average was 2.901 ML

Comparison of actual to system approved flow

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

Maximum daily flow: 227.300 ML
Maximum flow rate: 227.300 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.	45.126	20%	51.789	22.78%	99.812	43.91%
Feb.	47.214	21%	50.056	22.02%	77.037	33.89%
March	47.972	21%	57.201	25.17%	69.866	25.19%
April	46.623	21%	48.48	21.33%	70.408	25.39%
May	51.83	23%	63.759	28.05%	81.821	35.99%
June	61.693	27%	75.069	33.02%	167.58	73.73%
July	69.311	30%	79.893	35.12%	97.616	42.94%
Aug.	65.479	29%	72.177	31.75%	105.516	46.42%
Sept.	56.45	25%	65.269	23.53%	120.144	52.86%
Oct.	48.056	21%	52.371	23.04%	78.43	34.51%
Nov.	47.793	21%	51.024	18.40%	99.041	43.57%
Dec.	47.478	21%	50.996	17.12%	87.013	38.29%