7.—(1) The use of relevant waste from a water treatment works or a waste water treatment plant to clean a highway gravel bed.
(2) The table specifying relevant waste for the purposes of this paragraph is set out below.
| Codes | Waste types |
|---|---|
| 190899 | Effluent only |
(3) For the purposes of this paragraph, the specific conditions are that—
(a)the total quantity of waste used over any 24-hour period does not exceed 10 cubic metres;
(b)the highway gravel bed has sealed drainage to ensure that the condition in paragraph (c) can be met;
(c)all waste used in and produced by the cleaning operation is collected; and
(d)the waste meets any relevant conditions specified in the environmental permit authorising the operation of the water treatment works or waste water treatment plant.