Historical Water Level and Streamflow Summary

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.