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
Ottawa River at Mattawa
Ottawa River at Pembroke
Lake Coulonge
Chats Lake at Arnprior
Ottawa River at Britannia
Ottawa River at Hull
Ottawa River at Carillon
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