Paragraph 8 I1

In Part 1—

• “background quantity” means, in relation to the release of a substance resulting from an activity, such quantity of that substance as is present in—

  1. (i)

     water supplied to the site where the activity is carried out;

  2. (ii)

     water abstracted for use in the activity; and

  3. (iii)

     precipitation onto the site on which the activity is carried out;

• “Part A activity” means an activity falling within Part A of any section in Part 1;

• “Part B activity” means an activity falling within Part B of any section in Part 1;

• “Part C activity” means an activity falling within Part C of any section in Part 1.