Columbia River at Waneta Federal-Provincial Monitoring Station

CCME Water Quality Index

Display Type Annual 3-Year

Index Driver

The WQI for this site is the result of numerous cadmium exceedences (likely from an upstream smelter), and several water temperature exceedences (likely from upstream dams).

Index Calculation Data

2005 2004 2003 2002 2001

stat year cadmium chromium copper lead pH phosphorus temp thallium (extractable) zinc Sample Size 2005 46.0000 46.0000 45.0000 46.0000 46.0000 44.0000 46.0000 46.0000 46.0000 Mean 2005 0.0292 0.0813 0.4356 0.1669 7.3326 0.0051 9.4413 0.0340 1.6033 Median 2005 0.0300 0.0715 0.4200 0.1360 7.3000 0.0049 9.0500 0.0220 1.5650 Maximum 2005 0.0540 0.1990 0.6000 0.5850 7.9000 0.0104 19.0000 0.2650 3.7600 Minimum 2005 0.0110 0.0570 0.3400 0.0430 6.8000 0.0027 2.7000 0.0010 0.7300 Standard Deviation 2005 0.0096 0.0293 0.0601 0.0992 0.2891 0.0015 4.9183 0.0460 0.7142