The Waste Management Licensing (Scotland) Regulations 2011

10.—(1) Subject to sub paragraph (4)—

(a) the reception and treatment within the curtilage of a water treatment works of any of the wastes listed in Table 4 if the total quantity of waste which is treated in any period of 12 months does not exceed 100,000 cubic metres; and

(b) the secure storage within the curtilage of a water treatment works of waste intended to be treated in reliance on the exemption conferred by paragraph (a).

(2) Subject to the following provisions of this paragraph—

(a) any recovery operation carried on within the curtilage of a sewage treatment works of any of the wastes listed in Table 4;

(b) the secure storage within the curtilage of a sewage treatment works of waste intended to be submitted to the activity mentioned in paragraph (a).

Table 4

Codes (1)	Types of waste
(1) Codes referred to in the European Waste Catalogue.
Waste from waste water treatment plants not otherwise specified (19 08)
19 08 01	Screenings
19 08 05	Sludges from treatment of urban waste water
Wastes from the preparation of water intended for human consumption or water for industrial use (19 09)
19 09 02	Sludges from water clarification
19 09 03	Sludges from decarbonation
19 09 06	Solutions and sludges from regeneration of ion exchangers
Other municipal wastes (20 03)
20 03 04	Septic tank sludge
20 03 99	Municipal waste not otherwise specified

(3) The total quantity of waste brought to a sewage treatment works for the purposes of a recovery operation in reliance upon the exemption covered by sub paragraph (2) in any period of 12 months shall not exceed 100,000 cubic metres.

(4) The area where a treatment or recovery operation takes place shall have an impermeable pavement capable of containing any spillage of waste received and connected to a drainage system with impermeable components which does not leak and which will ensure that—

(a) no liquid will run off the pavement otherwise than via that system; and

(b) except where they may be lawfully discharged, all liquids entering the system are collected in a sealed sump.