(a) Underground tanks shall be bedded in and surrounded by approved noncorrosive backfill, such as clean sand. Clay or cinder backfill shall not be used. Where concrete paving is the finished surface above a tank, such concrete shall be placed upon well tamped backfill. All underground tanks shall be so located and installed as not to endanger any foundation.
(b) No underground storage tank or piping thereto shall be backfilled or covered until it has been inspected and approved by an authorized representative of the Division of Fire. A request for inspection shall be made when the work is ready for inspection and such inspection shall be made within two (2) working days after receipt of such request by the Division.
(c) Where subsurface water conditions exist or are likely to develop, tanks shall be securely anchored or weighted to prevent floating.
(d) Piping to or from underground tanks shall be pitched to drain back to the tanks and all such piping installed outside buildings and carrying flammable liquid shall, unless otherwise specifically approved by the Fire Chief, be installed underground with sufficient cover for protection from damage.
(Ord. No. 991-49. Passed 6-27-49, eff. 6-27-49)