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Watershed Information System


Watershed Watch

NEW! Summary of Results —
2006 - 2009

image of watershed watch document

WATERSHED WATCH is an intensive monitoring program on 39 lakes in our valley. The result will be a reliable and accurate set of baseline data to act as an early warning system to identify trends or problems in water quality.

The water quality indicators monitored in the program are:

  • total phosphorus (deep points, shoreline)
  • total Kjeldahl nitrogen (deep points, shoreline)
  • bacteria (E.Coli) (shoreline)
  • water clarity (deep points)
  • dissolved oxygen/temperature (deep points)
  • invasive species (zebra mussels, spiney water flea – three sites at the deep point, near a major access point (marina or boat launch) and a low traffic area)
  • calcium (deep point)
  • benthic invertebrates (the bugs on the bottom – three samples at three shoreline locations).

Over the first five years of the WATERSHED WATCH program (2001 – 2005), 6 or 7 lakes were sampled intensively (8 times) each year at the deep points and at shoreline sites where there appeared to be possible pollution sources. The program was changed for 2006 with 39 lakes sampled at deep points in May and October and twice at deep points and shoreline sites June through September.

The WATERSHED WATCH program will be on-going to build a set of ambient (baseline) data that can be used to show trends and changes in the condition of the watershed lakes.

Anyone can get involved. Join the group of residents on several lakes who volunteer their time and their boats each summer to provide on the water transportation for RVCA staff and a helping hand taking samples and catching bugs. Please contact us.

For Watershed Watch Newsletters — click here.

Map —Calcium Concentration
(pdf - 3.6 mb)

Map — Total Phosphorus Concentration
(pdf - 3.6 mb)



Download the Watershed Watch Brochure



Lake Reports
Summary of Results — 2006-2009

Summary of Results (pdf - 640 kb)
Map — Total Phosphorus Concentration (pdf - 3.6 mb)
Calcium Concentration (pdf - 3.6 mb)

State of the Lake Environment Report — 2006
  Wolfe Lake 2004-2006
State of the Lake Environment Report — 2005

Adam Lake 2005
Upper Rideau Lake 2005
Pike Lake 2005
Christie Lake 2003-2005

State of the Lake Environment Report — 2004
  Elbow Lake2004 (573 kbs)
Carnahan Lake 2004 (596 kbs)
Pike Lake 2004 (249 kbs)
State of the Lake Environment Report — 2003
Bobs Lake 2003 (532 kbs)
Map - Bobs Lake West (1.6 MB)
Map - Bobs Lake East (1.3 MB)
Buck Bay 2003 (292 kbs)
West Basin 2003 (284 kbs)
Green Bay 2003 (318 kbs)
Narrows 2003 (272 kbs)
East Basin (596 kbs)
Mud Bay 2003 (252 kbs)
Mill Bay 2003 (248 kbs)
Long Bay 2003 (444 kbs)
Norris Bay (620 kbs)
Crow Lake 2003 (620 kbs)
Pike Lake 2003 (812 kbs)

Otter Lake 2003
State of the Lake Environment Report — 2002
Black Lake 2002 (1.2 MB)
Burridge Lake 2002 (1.2 MB)
Eagle Lake 2002 (724 kbs)
Long Lake 2002 (1.7 MB)
Otty Lake 2002 (1.6 MB)
Pike Lake 2002 (772 kbs)
State of the Lake Environment Report — 2001
  Crosby Lake
Davern Lake
Farren Lake
• Little Crosby Lake
• Little Silver Lake
• O'Brien Lake
• Pike Lake
• Rainbow Lake