31. The daily BOD5 discharge limit is the product of the RPRF multiplied by a discharge standard of 7.1 kg/t.
If the monthly BOD5 discharge limit is calculated under the second paragraph of section 30, the daily BOD5 discharge limit is the product of the RPRF multiplied by a discharge standard of 12 kg/t.
For a dissolving grade sulphite pulp mill, the daily BOD5 discharge limit is the limit calculated under the first or second paragraph, to which is added the product of the RPRD multiplied by a discharge standard of 31 kg/t.
For a complex having a mill whose construction was completed after 21 October 1992, the daily BOD5 discharge limit is the limit calculated under the preceding paragraphs, to which is added the product of the RPRNP multiplied by a discharge standard of 3.6 kg/t.
The limit referred to in the second paragraph ceases to apply on 1 November 2009.