The Water Resources (Control of Pollution) (Oil Storage) (Wales) Regulations 2016

Requirements in relation to fixed tanks

6.—(1) A person who has custody or control of any oil must ensure that the requirements of this regulation are complied with.

(2) Where a fixed tank is used for storing oil the requirements in paragraphs (3) to (14) must be satisfied.

(3) Any sight gauge must be adequately supported and fitted with a valve which closes automatically when not in use.

(4) Any fill pipe, draw off pipe or overflow pipe must be positioned, or other steps must be taken, so as to minimise any risk of damage by impact so far as is reasonably practicable.

(5) Any pipe mentioned in paragraph (4) which is above ground must be adequately supported.

(6) Any pipe mentioned in paragraph (4) which is made of materials which are liable to corrosion must be adequately protected against corrosion.

(7) Any small bore suction pipe must be fitted with an anti-siphon valve.

(8) The tank must be fitted with an automatic overfill prevention device if the filling operation is controlled from a place where it is not reasonably practicable to observe the tank and any vent pipe.

(9) Where a screw fitting or other fixed coupling is fitted, it must be maintained in good condition and must be used whenever the tank is being filled with oil.

(10) Paragraphs (11) and (12) apply where oil from the tank is delivered through a flexible pipe which is permanently attached to the tank or a delivery pump.

(11) The flexible pipe must be fitted with a tap or valve at the delivery end which—

(a) closes automatically when not in use; and

(b) is not capable of being fixed in the open position (unless the pipe is fitted with an automatic shut-off device).

(12) The flexible pipe must either—

(a) be enclosed in a secure cabinet which is locked shut when not in use and is equipped with a drip tray; or

(b) have a lockable valve where it leaves the container which is locked shut when not in use, and be kept within the secondary containment system when not in use.

(13) Any pump must—

(a) be fitted with a non-return valve in its feed line;

(b) be positioned, or made subject to other measures, so as to minimise any risk of damage so far as is reasonably practicable; and

(c) be adequately protected from unauthorised use.

(14) Any permanent vent pipe, tap or valve through which oil can be discharged from the tank to the open must—

(a) be situated within the secondary containment system;

(b) be arranged so that any oil discharged from the tank other than to its intended destination is contained within the system; and

(c) (in the case of a tap or valve), be fitted with a lock and locked shut when not in use.