Any replacement of underground liquid storage systems in whole or in part as directed by the Building Official must conform with specifications for new construction.
(A) Any underground liquid storage system which fails, but is less than ten years old may be repaired at the direction of the Building Official and in accordance with specifications approved by the Building Official. Any system which fails and which is ten years old or more, must be replaced in accordance with this subchapter.
(B) Any underground liquid storage system which has not been or intended to be in continual use for a period of one year shall be reported within 60 days by the owner to the Building Official.
(C) Any underground liquid storage system which is not intended to be in service shall comply with § 29-62-88 of the Regulations of Connecticut State Agencies covering the storage, use and transportation of flammable liquids as follows:
(1) Tanks rendered “temporarily out of service”.
(a) All flammable liquid that can be pumped out with the service pump shall be removed;
(b) The fill line, gauge hatch and pump suction shall be capped and secured against tampering; and
(c) The vent line shall be left open.
(2) Abandoning underground tanks in place.
(a) All flammable liquid shall be removed from the tank and from all connecting lines;
(b) The suction, inlet gauge and vent lines shall be disconnected;
(c) The tank shall be flooded with water;
(d) The tank and any remaining pipe stubs shall be filled with an inert solid material; and
(e) All connecting lines below ground level shall be capped or plugged.
(3) Removal of underground tanks.
(a) All flammable liquid shall be removed from the tank and from connecting lines;
(b) The suction, inlet, gauge and vent lines shall be disconnected;
(c) The tanks shall be flushed with water and rendered gas free as indicated by combustible gas indicator;
(d) Inlets and outlets shall be capped or plugged and kept capped or plugged during the transportation and storage of the tank; and
(e) A tank which is to be disposed of as junk shall be retested for explosive vapors and rendered gas free. After the tank is junked and before it is released to a junk dealer, a sufficient number of holes or openings shall be made in it to render it unfit for further use.
(D) New underground liquid storage tanks not designated flammable but hazardous will be treated in the same manner as divisions (A), (B) and (C) above.
(E) Conformation with division (D) above shall be performed within 60 days after notification of the Building Official.
(Ord. passed 6-22-1981)
Editor’s note:
TM Volume 14, page 117