Pulp and Paper Mill Effluent Chlorinated Dioxins and Furans Regulations (SOR/92-267)

1 Beginning on July 1, 1992 and ending on December 31, 1993, one 24-hour composite sample of the final effluent shall be collected during any day in which the chlorine bleaching plant is operating during the first month of each quarter of a given year.

2 Effective January 1, 1994, one 24-hour composite sample of the final effluent shall be collected during each month during any day in which the chlorine bleaching plant is operating, with a minimum of 21 days between any sample collection.

3 Effective January 1, 1995, subject to item 6, where no measurable concentration of 2,3,7,8-TCDD and no measurable concentration of 2,3,7,8-TCDF have been detected in the final effluent for the last three consecutive months, one 24-hour composite sample of the final effluent shall be collected once every quarter during any day in which the chlorine bleaching plant is operating.

4 Effective January 1, 1996, subject to item 6, where no measurable concentration of 2,3,7,8-TCDD and no measurable concentration of 2,3,7,8-TCDF have been detected in the final effluent for three consecutive quarters, one 24-hour composite sample of the final effluent shall be collected annually during any day in which the chlorine bleaching plant is operating, with a minimum of 350 days between any sample collection.

• 5 (1) An operator may commence the monthly sampling referred to in item 2, prior to January 1, 1994, and, after at least twelve consecutive monthly samples as described in item 2, may

  • (a) proceed to the quarterly sampling referred to in item 3, if the conditions required for quarterly sampling exist; and

  • (b) proceed to annual sampling referred to in item 4, if the conditions required for annual sampling exist.

• (2) If an accelerated schedule is followed as described in subitem (1), item 6 applies to that sampling schedule.

6 Where for any quarterly or annual samples there are measurable concentration of 2,3,7,8-TCDD or measurable concentration of 2,3,7,8-TCDF, one 24-hour composite sample of the final effluent shall be collected monthly until no measurable concentration of 2,3,7,8-TCDD and no measurable concentration of 2,3,7,8-TCDF have been detected for the period set out in item 3 or 4 at which time that item applies.