FYI: Got this from boatwerks boater board. It you paddle in Ontario, it's a great way to get water level info. Too bad the plug was pulled… but there may be hope!
http://www.boatwerks.net/cgi-bin/board.pl?read=63457
Ontario Real Time Water Level Gauge
Moderators: kenneth, sbroam, TheKrikkitWars, Mike W., Sir Adam, KNeal, PAC, adamin