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The Provincial Water Qulaity Monitoring Network (PWQMN) data is presented in scatter charts relative, in most cases, to the PWQO or guideline. It is obvious in all cases how the variable is performing. As well, there is a finger chart for each variable that shows the comparison from site to site. The fingers show the maximum and minimum concentration and the box shows the spread of the data between the 25th and 75th percentile. In other words, 50% of the data falls within the box. The shorter the fingers, the smaller the box, the lower on the scale the data falls and if the same pattern occurs for all variables, the better the water chemistry quality at the site is. At this time, the RVCA baseline data is presented in its entirety. When a site is selected on the WIS map, the dataset for that site will be opened. The variable list was expanded in 2003 so there is only one year of data for many variables which is not sufficient for any statistical analysis. The data can be compared to the PWQO or guideline where available which will give some indication of what has happened in each area over the summer. Where the chemistry monitoring site is also a benthic macroinvertebrate monitoring site, the biological data will give an indication of the longer term situation. The published reports for the Watershed Watch 2001 program are available online. The 2002 and 2003 reports are expected by April 2004. Until then, the dataset is available as for the RVCA baseline program. |
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©
2003 Rideau Valley Conservation Authority