Re: Canadian Drinking Water Standards

[Richard McGregor <dmcgregor@hpb.hwc.ca>]

The current publication for drinking water standads in Canada was just
recently published and is:

Guidelines for Canadian Drinking Water Quality
Sixth Edition

Publication 96-EHD-196

Published by Health Canada
1996.

It is available from: 
Canada Communications Group - Publishing
Ottawa, Canada
K1A 0S9

Cat:H48-10/1996E
ISBN 0-660-16295-4

The maximum acceptable concentration of a radionuclide (MAC) is based on
consumption of 2 litres per day and a maximum committed effective dose of
0.1 mSv, or 10% of the ICRP limit of public exposure. For tritium, the MAC
is 7000 Bq/L based on a dose conversion factor of 1.8xE-11 Sv/Bq.


Richard McGregor
Environmental Radiation Hazards Division
Radiation Protection Bureau
Health Canada,  6302D1
775 Brookfield Road
Ottawa, Ontario, Canada, K1A 1C1

dmcgregor@hpb.hwc.ca