Treating disused petrol tank

A. "Storage TanksDemolition and Making Safe" by Torbay Council, UK

1. Permanent methods for treating disused petrol tanks:

a. Water filling a disused petrol tank and removing it from the ground;

b. Inerting a disused petrol tank with nitrogen prior to solid filling or removal of tank from the ground;

c. Solid filling an existing disused water filled petrol tank with cement slurry or concrete mix; or

b. Solid filling or removal of a tank from the ground using a hydrophobic inert foam
(This method utilises an acceptable inert foam and normally no water filling of the tank prior to application is required. If the tank is water filled)

2. Temporary methods for treating disused petrol tanks
a. Water filling

b. Hydrophobic inert foam

c. Inert nitrogen foam
B. Designated Project Schedule 2 Part II Decommissioning Project, EIAO Cap 499
Store for oil, LPG or LNG with a storage capacity exceeding 200 tonnes

Other findings:
a. Methods Of Rendering Underground Petroleum Storage Tank(s) Permanently Safe From The Risk Of Fire And/Or Explosion, West Yorkshire Fire & Rescue Service Fire Safety Group, UK

b “Design Construction, Modification, Maintenance and Decommissioning of Filling Stations”, APEA 2008

c. Decommissioning of the Former Kai Tak Airport Other than the North Apron Environmental Impact Assessment Report