Decew Falls Water Treatment Plant - 2018 Summary Report

Prepared under Ontario Regulation 170/03

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 Act, the Regulations, the system's approval or any order that may have been issued from Jan. 1, to Dec. 31, 2018.

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 1747.219 1554.102 56.362 50.132 52.878 47.948 79.436 23.199 0.780
Feb 1564.273 1374.048 55.867 49.073 52.782 46.148 102.588 17.566 0.824
Mar 1729.191 1529.487 55.780 49.338 51.362 47.224 74.101 22.622 0.824
Apr 1677.964 1489.972 55.932 49.666 53.904 47.001 72.347 20.722 0.824
May 1900.540 1728.820 61.308 55.924 78.354 28.757 94.029 10.472 9.062
Jun 2190.617 2039.161 73.021 67.972 94.908 54.981 101.540 23.311 6.417
Jul 2383.023 2314.860 76.872 74.673 93.786 63.726 112.529 35.124 0.727
Aug 2210.630 2055.174 71.311 66.296 74.668 57.917 130.316 36.187 0.564
Sep 1074.414 1814.582 65.714 60.486 68.567 55.336 90.257 34.811 0.520
Oct 1752.368 1616.921 56.528 52.159 54.237 49.514 77.662 25.595 9.279
Nov 1613.699 1478.511 53.790 49.284 51.976 47.055 78.401 22.996 3.165
Dec 1630.932 1490.453 52.611 48.079 50.940 42.939 101.623 16.124 1.084
Total 22371.870 20486.091             34.071
Minimum           28.757   10.472 0.520
Maximum         94.908   130.316   9.279
Average     61.258 56.090         2.839

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 # 007-102 and Drinking Water Works Permit # 007-202.

Maximum daily flow: 227.300 ML
Maximum flow rate: 227.300 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 50.132 22.1% 52.878 23.3% 79.436 34.9%
Feb 49.073 21.6% 52.782 23.3% 102.588 45.1%
Mar 49.338 21.7% 51.362 22.6% 74.101 32.6%
Apr 49.666 21.9% 53.904 23.7% 72.347 31.8%
May 55.924 24.6% 78.354 34.5% 94.029 41.4%
Jun 67.972 29.9% 94.908 41.8% 101.540 44.7%
Jul 74.673 32.9% 93.786 41.3% 112.529 49.5%
Aug 66.296 29.2% 74.668 32.8% 130.316 57.3%
Sep 60.486 26.6% 68.567 30.2% 90.257 39.7%
Oct 52.159 22.9% 54.237 23.9% 77.662 34.2%
Nov 49.284 21.7% 51.976 22.9% 78.401 34.5%
Dec 48.079 21.2% 50.940 22.4% 101.623 44.7%
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