• 3. (1) Subject to subsection (2), these Regulations apply to every new plant and every expanded plant.

• (2) Where a plant becomes an expanded plant, these Regulations apply to the expanded plant on the first day of the month following the month in which the plant becomes an expanded plant.

4. For the purpose of the definition “deleterious substance” in subsection 34(1) of the Act, the following substances resulting from the operations of a plant to which these Regulations apply are hereby prescribed as deleterious substances:

• (a) biochemical oxygen demanding matter; and

• (b) total suspended matter.

5. Subject to these Regulations, the owner of a plant of a class set out in Column I of Schedule I may deposit a deleterious substance prescribed by section 4 if

• (a) the actual daily deposit of each deleterious substance, determined in accordance with subsection 11(1), does not exceed the authorized daily deposit of that substance for that class of plant as set out in Column III of that Schedule;

• (b) the average daily deposit of each deleterious substance during a month, determined in accordance with subsection 11(2), does not exceed the authorized average daily deposit of that substance for that class of plant as set out in Column IV of that Schedule; and

• (c) the pH of each composite sample of effluent, determined in accordance with subsection 9(3), is between 6.0 and 9.0.

6. The owner of a plant shall, for each type of effluent deposited by the plant,

• (a) install and maintain facilities, including sampling connections and flow measuring devices, of such type as the Minister may in writing approve for sampling and analysing effluents for the purpose of enabling the Minister to determine whether the owner is complying with the limits of authorized deposits prescribed by section 5;

• (b) take a composite sample on the regular basis prescribed by section 8;

• (c) analyse the sample referred to in paragraph (b) in accordance with section 9;

• (d) measure the flow in accordance with section 10; and

• (e) determine the actual and average daily deposits of each deleterious substance in accordance with section 11.

7. A composite sample shall be obtained by collecting effluent discharged from a plant during a processing day

• (a) continually during a sampling period of 24 hours at a rate in proportion to the flow rate of the effluent discharged; or

• (b) in such a manner that equal volumes of effluent are delivered into a receptacle at equal intervals not longer than one hour during a sampling period of 24 hours.

8. The sampling referred to in paragraph 6(b) shall be made

• (a) in the case of a plant where the weekly quantity of raw potatoes processed is less than 400 tonnes, on one processing day each week; and

• (b) in the case of a plant where the weekly quantity of raw potatoes processed is 400 tonnes or more, on two processing days each week.