Historical Data Summaries: Water Levels and Flows

The following links show historical summaries of water levels and discharges at various locations in the Ottawa River basin, including monthly and annual mean levels and/or discharges and annual maximum and minimum extreme values.

• Lake Timiskaming at Haileybury
• Ottawa River at Mattawa
• Ottawa River at Pembroke
• Lake Coulonge
• Chats Lake at Arnprior
• Ottawa River at Britannia
• Ottawa River at Gatineau (Hull)
• Ottawa River at Thurso
• Ottawa River at Grenville
• Ottawa River at Carillon
• Gatineau River at Maniwaki

If you require more information, contact us.