Prairie Provinces Water Board

The MAA was signed in 1969 by Canada and the governments of Alberta, Saskatchewan, and Manitoba in recognition of the need to cooperatively share and manage interprovincial waters for the benefit of present and future generations.

Contact Us

Prairie Provinces Water Board
Suite 1001 - 10th Floor, Alvin Hamilton Building
1783 Hamilton Street
Regina, SK S4P 2B6

Telephone: (306) 564-4462 or (306) 807-8563
Fax: (306) 780-6810  


Frequently Asked Questions: Surface Water Quality

What are the Benefits of the PPWB objectives?

Schedule E of the Master Agreement on Apportionment establishes water quality objectives for various variables at 11 PPWB rivers. These PPWB objectives promote cooperative water quality management. They are guidelines which the board can use to assess whether the water in a particular river is acceptable. The objectives also help in assessing the impact of proposed developments on water quality and enable the PPWB to identify potential interprovincial water quality issues.

Where are the PPWB water quality objectives used?

The objectives apply to specific river reaches crossing the Alberta-Saskatchewan and Saskatchewan-Manitoba borders. Water quality is sampled by Environment Canada at 12 PPWB sites, 11 of which have PPWB objectives (see Where We Monitor). The PPWB then compares the sampled amounts of water quality parameters to the PPWB objectives, assessing whether water quality conditons are acceptable.

How are te PPWB water quality objectives applied or used?

If monitoring indicates an objective is not being met, the Committee on Water Quality - a permanent committee of the PPWB - will investigate to determine the cause, and whether there is a risk to downstream water users. The committee will closely study the cause of the condition and decide whether it is a one-time or a long-term event.

Finally, the Board may make recommendations to the upstream province in which the event occurred. The appropriate agency then takes whatever corrective action is required.

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Page last modified: 08 March 2019 17:42

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