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Proceedings - Teaching and Learning Centre - Simon Fraser ...

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<strong>Fraser</strong> River Action Plan 3rd Research Workshop<br />

contaminants was developed due to the lack of historical water quality for combined sewer overflows in the<br />

region.<br />

Table 1: Estimated Annual Contaminant Loadings from Urban Runoff<br />

Parameters <strong>Fraser</strong> River<br />

Basin-totals<br />

Lower<br />

Region<br />

Page 96<br />

Thompson<br />

Region<br />

Middle<br />

Region<br />

Upper Region<br />

TSS (tonnes) 62,781.80 54,583.60 1,689.40 913.2 5,595.60<br />

BOD (tonnes) 4,520.30 3,930 121.6 65.8 402.9<br />

COD (tonnes) 35,147.80 30,556.80 946.1 511.4 3,133.50<br />

Ammonia (kg) 75,338 65,500 2,027 1,096 6,715<br />

Nitrate/Nitrite (kg) 351,578 305,668 9,461 5,114 31,335<br />

Total Nitrogen (kg) 878,946 764,170 23,652 12,785 78,339<br />

Total Phosphorus (kg) 175,789 152,834 4,730 2,557 15,668<br />

Lead (kg) 75,338 65,500 2,027 1,096 6,715<br />

Copper (kg) 17,579 15,283 473 256 1,567<br />

Zinc (kg) 75,338 65,500 2,027 1,096 6,715<br />

Chromium (kg) 5,023 4,367 135 73 448<br />

Cadmium (kg) 4,018 3,493 108 58 358<br />

Nickel (kg) 12,556 10,917 338 183 1,119<br />

Arsenic (kg) 6,529 5,677 176 95 582<br />

Phenols (kg) 6,529 5,677 176 95 582<br />

Oil <strong>and</strong> Grease (kg) 2,511,273 2,183,344 67,576 36,528 223,825<br />

Total Hydrocarbons (kg) 2,009,018 1,746,675 54,061 29,223 179,060<br />

PAH (kg) 502 437 13.5 7.3 44.8<br />

Fecal Coliforms (billion) 60,270,554 52,400,252 1,621,831 876,680 5,371,792<br />

Objectives for this project were:<br />

1. monitor the quality <strong>and</strong> quantity of CSOs over several rain events;<br />

2. assess the toxicity of CSO discharges;<br />

3. characterize one sludge sample from sediment deposits on the bottom of the combined sewer<br />

overflow pipe;<br />

4. compare measured contaminant concentrations to the CSO water quality estimates developed in the<br />

GVRD’s Stage 1 Liquid Waste Management Plan (LWMP) Report;<br />

5. identify key contaminants within the CSOs which would be appropriate for initial dilution zone <strong>and</strong><br />

receiving water assessment studies; <strong>and</strong>,

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