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Health of the Rideau River

 

Water Quality at a Glance:
Long Island to Hogs Back

Marina at Mooneys Bay.
Marina at
Mooneys Bay.

This table uses several indicators to give an overview of the water quality of the Rideau River between Long Island and Hogs Back. Data collected in 1999 is presented. These data are representative of data recorded during the three years of the Rideau River Biodiversity Project.


Map of the Rideau River between Long Island and Hogs Back. See a detailed map of the Rideau River between Long Island and Hogs Back.

 

  Long Island to Hogs Back  
Arrow.  
Arrow.  
Bullet. 
Arrow. 
 Don't Overlook...  
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image Some Results from Water Quality Research Conducted in 1999 image
Indicator
Acceptable levela Average Minimum Maximum
Description
Nitrate and Nitrite
(mg/L)
Value not established 0.04 0.00 0.40
Found neither in excess nor at levels limiting to plant growth.
Phosphorus
(mg/L) a
0.03 0.036 0.028 0.045
Levels exceed acceptable maximum and encourage problematic plant growth.
Sodium
(mg/L)
Value not established 10.48 6.17 13.20 Sodium is not found in excess.
Aluminium
(mg/L) a
0.005 to 0.100
(acceptable range)
0.0892 0.0502 0.1590 The average level is less than the acceptable maximum. Sources of locally high levels have not been determined.
Copper
(mg/L) a
0.002 to 0.004
(acceptable range)
0.0011 0.0006 0.0017 Levels do not exceed acceptable maximum.
Iron
(mg/L) a
0.3 0.0687 0.0395 0.1190 Levels do not exceed acceptable maximum.
Dissolved Oxygen
(mg/L) a
5 to 9.5
(acceptable range)
7.30 6.34 8.44 Levels do not exceed acceptable maximum.
E. coli
(CFU/100 ml) b
200 6.0 2.0 36.0 Average and maximum levels do not exceed acceptable maximum.
DDT
(µg/kg dry weight) c
1.19 not available not available not available Data not available for this section of the River.
PCB
(µg/kg dry weight) c
34.1 not available not available not available
Data not available for this section of the River.

a Established in the Canadian Water Quality Guidelines for Freshwater Aquatic Life. [11]
b Established in the Guidelines for Canadian Recreational Water Quality. [15]
c Established in the Canadian Sediment Quality Guidelines for the Protection of Aquatic Life. [12]

 

A Project of the Canadian Museum of Nature
  
 Images: Canadian Museum of Nature, Jean Lauriault