For Victoria to be in compliance with the National Performance Standards, wastewater must be treated in a secondary treatment facility or better. Specifically, the minimum percent reduction required for Victoria’s effluent is 86% for Carbonaceous Biochemical Oxygen Demand (CBOD) and 88% for Total Suspended Solids (TSS).
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Effects of National Performance Standards for Victoria |
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Parameter |
CCME National Performance Standard 1 |
Victoria’s Effluent Now 2 |
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Carbonaceous Biochemical Oxygen Demand (CBOD) |
25 mg/L |
Macaulay Point – 175 mg/L |
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Total Suspended Solids (TSS) |
25 mg/L |
Macaulay Point – 218 mg/L |
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Total Residual Chlorine (TRC) |
0.02 mg/L |
Macaulay Point – no data |
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Primary wastewater treatment can reduce CBOD by approximately 35% and TSS by approximately 60%. Secondary wastewater treatment can reduce CBOD by more than 85% and TSS by more than 85% as well as removing some of the chemicals in solution. Tertiary wastewater treatment can reduce CBOD by more than 99% and TSS by more than 99% as well as removing a greater portion of the chemicals in solution.
1 The National Performance Standards are the minimum performance requirements for effluent.
2 This information was gathered from the most resent CRD annual report (2007) for Macaulay Point and Clover Point.