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The Canadian Hydrographic Service (CHS) provides Canadians with timely information and updates to current water level activity including tidal prediction data – so you can prepare, be proactive, and chart your own course safely. Here’s two simple, easy to access, and affordable tips on how you can get connected: 1. WATER LEVEL AT YOUR FINGERTIPS!-(connecting toll-free) Canadian hydrographic service (CHS) is connecting Canadians to water levels observations for the St. Lawrence River (between Montréal and Sept-Iles) and also to contiuous tidal data prediction for British Columbia, Quebec, New Brunswick, Nova Scotia, Prince Edward Island and Newfoundland and Labrador. By calling 1-877-775-0790, you can find out what you need to know for a safe journey. This service will prompt you to find your choice of «on the spot» information. Operating the Tidal data «Water level at your fingertips!» CALL 1-877-775-0790 (toll-free). Message of welcome (For service in English press « 9 ») To obtain tidal predictions in Canada press « 1 ».
To obtain water levels observations for the St. Lawrence River press « 2».
To obtain the complete list of regions available on this system by fax press « 3 ». Press « # » to return to the main menu. Please contact our CHS office in Mont-Joli at (418) 775-0502 (during office hours 08:00 to 16:00) or by fax at (418) 775-0654 or by e-mail to chsinfo@dfo-mpo.gc.ca to report any problems. 2. THE GREAT LAKES The Canadian Hydrographic Service operates a network of announcing gauges at its stations on the Great Lakes and St. Lawrence River. The following stations can be accessed by telephone at the number listed:
When one of these gauging stations is called, the caller will be asked to press 1 on the touch-tone telephone for English or 2 for French. If a touch-tone phone is not used, the message in English will start after a few seconds and the message in French will follow. The message gives the present water level in metres above chart datum at that station, followed by the high and low water levels recorded during the previous 12 hours. The height of the presently adopted chart datum for that station is then given in metres above International Great Lakes Datum 1985 (IGLD 1985). Pressing 1 or 2 at any time during the message will restart the announcement from the beginning and pressing 0 at any time will end the call. Please contact our Burlington office at 1-877-247-5465 (during office hours 08:00 to 16:00) or by fax at (905) 336-8916 or by e-mail to CATCWL@dfo-mpo.gc.ca to report any problems or for additional information of water levels on the Great Lakes and Hudson Bay. WATER LEVELS-A KEY TO SAFE AND EFFICIENT NAVIGATION! Information on water level activity is also continuously listed on these systems to help you plan your trip safely–everytime.
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