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NBMCA Offices Close for Holidays 4pm Dec 23 reopening Jan 4, 2022


North Bay-Mattawa Conservation Authority

NBMCA was founded in 1972 by the Province of Ontario and the NBMCA’s 10 member municipalities.
As a community-based, non-profit environmental organization, NBMCA is dedicated to
conserving, restoring, developing and managing renewable natural resources on a watershed basis.
NBMCA is one of 36 Conservation Authorities who are members of Conservation Ontario.

Be a Steward!

Prevent Erosion and Runoff!

Planting trees and shrubs along the shoreline or stream bank at your home, farm or cottage is one of the ways you can help protect and preserve water quality. 


Development and On-site Sewage

Permits are one tool for balancing human needs with the needs
of the natural environment, protecting people and property
from natural hazards.


Integrated Watershed Management

From water quality monitoring and flood forecasting to drinking water source protection, NBMCA uses science to make watershed management decisions. 

Get Outside!

Trails & Events

Looking to hike, bike, or ski?
Paddle a historic canoe route?
Explore our natural heritage?
Take part in an environmental festival or special event?  


NBMCA Delivers Essential Service During Stay-at-Home Order

April 13, 2021

During the Provincial Emergency and Stay-at-Home Order issued by the province on April 8, 2021, the North Bay-Mattawa Conservation Authority will continue to deliver programs that have been deemed an “Essential Business/Service” by the Ontario/Canadian government. 


Snow Survey Readings for December 1, 2021

December 03, 2021

SNOW SURVEY READINGS Begin for 2021-2022 Season
(North Bay, Ontario, December 3, 2021) Snowfall in the area has allowed for the start of the snow survey season this week, reports the North Bay-Mattawa Conservation Authority (NBMCA) who measures snow depth and water content as part of its Flood Forecasting and Warning Program. 


NBMCA CAO Brian Tayler Announces Retirement

November 25, 2021

After 19 years at the helm of the North Bay-Mattawa Conservation Authority, CAO Brian Tayler will retire in June 2022.  Tayler’s career in conservation spanned 40 years, including 17 years with the Credit Valley Conservation Authority and four years with the former Ministry of Natural Resources before joining NBMCA in 2003.


NBMCA Issues Flood Outlook / Water Safety Statement

October 15, 2021

Recent rainfall has left the ground saturated and water levels significantly above average for this time of year. These conditions combined with 23mm of rain in the forecast over the weekend have prompted the North Bay-Mattawa Conservation Authority to issue a Watershed Conditions Statement – Flood Outlook for Chippewa Creek and similar urbanized watercourses and Water Safety statement for the remainder of its jurisdiction.


NBMCA Issue Flood Outlook Statement

September 20, 2021

With 75mm of rain in the forecast over the next four days, the North Bay-Mattawa Conservation Authority has issued a Flood Outlook Statement for the watershed.


The 2021 Mattawa River Canoe Race has been cancelled due to COVID-19. Here's hoping we're back in 2022! 

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