Water Levels



Rideau Canal SystemRecordedTargets
Chaffey’s Locks
(Newboro, Indian, Mosquito, Loon,
Clear Lakes, Benson Lake)
max.
min.
122.39 m
121.31 m
Apr 19/14
Mar 4/77
122.05 m
121.59 m
Davis Locks
(Lake Opinicon)
max.
min.
119.20 m
118.02 m
 Feb 26/81
Apr 2/71
118.75 m
118.25 m
Jones Falls Locks
(Sand Lake)
max.
min.
116.36 m
115.30 m
 Apr 16/14
Mar 13/72
116.04 m
115.73 m
Upper Brewers Locks
(Cranberry, Whitefish, Dog, Little Cranberry Lakes,
Cranesnest Lake)
max.
min.
98.95 m
97.09 m
 Apr 18/14
Mar 22/40
98.65 m
98.1 m
Lower Brewers Locks
(Washburn Locks)
max.
min.
93.16 m Mar 31/1192.70-.80
92.76
Kingston Mills
(Colonel By Lake, River Styx)
max.
min.
88.92 m
88.04 m
 Jan 12/78
Mar 20/70
88.70 m
88.48 m
Source: Parks Canada – confirmed July 18, 2014
All elevations correspond to Geodetic Survey of Canada (GSC) datum.
Energy OttawaRecordedTargets
Buck Lakemax.
min.
133.16 m
132.15 m
 Apr ’78
Nov ’84
132.75 m
132.4 m
Canoe Lakemax.
min.
142.15 m
139.0 m
 Apr ’05
Oct ’84
142 m
139.1 m
Desert Lakemax.
min.
136.25 m
134.56
 May ’08
Nov ’84
136 m
135.3
Devil Lakemax.
min.
131.92 m
130.05 m
 Apr ’84
Mar ’77
131.65 m
130.2 m
Loughborough Lakemax.
min.
125.48 m
124.17 m
 May ’16
Sep ’70
124.85 m
124.4 m
Kingsford Lakemax.
min.
136.25 m
134.56 m
 May ’08
Nov ’84
136 m
135.3 m
Source: FortisOntario Generation – Confirmed July 31, 2014
All elevations correspond to Geodetic Survey of Canada (GSC) datum.

Cataraqui Region Conservation Authority

Lake1:100 Year Water Level (Jan ’99)Agency
Centre108.0 mCRCA
Temperance114.6 mCRCA
Sydenham131.6 mCRCA
Graham*107.5 mMNR
Lower Beverly92.9 mMNR
Upper Beverly*95.1 mMNR
Gould141.0 m
Grippen89.2 m
Lyndhurst*86.6 m
Red Horse86.4 m
Singleton86.5 m
*Notes confirmed by MNR and CRCA, 2001
All elevations correspond to Geodetic Survey of Canada (GSC) datum.
Lake Ontario / St. Lawrence River1:100 Year Water LevelNotes
Lake Ontario Seasonal High Water Level75.1 m
Bay of Quinte West Watershed limited to Glenora Ferry
Terminal (MTO east property line)
75.9 m
Glenora Ferry Terminal to Centreline Millhaven Creek75.8 m
Centreline Millhaven Creek to East limit of Gananoque76.0 m2 yr = 75.4 m
5 yr = 75.6 m
10 yr = 75.7 m
25 yr = 75.8 m
50 yr = 75.9 m
East limit of Gananoque to East limit of Brown’s Bay Park75.9 m
Brown’s Bay Park to East Watershed limit75.8 m
All elevations correspond to Geodetic Survey of Canada (GSC) datum.