(a) All tree lawn openings shall be backfilled with sand when the work must be done in freezing weather. At other times they may be backfilled with earth, but the work must be done under the Building Commissioner's supervision. If the trench is backfilled with earth during freezing weather or at any time without supervision, then the deposit will not be refunded upon completion of the work but may be held for a period of six months or until the Building Commissioner is satisfied that settlement is complete.
(b) All openings under sidewalks except in new construction shall be backfilled with sand. This work shall also be carried out under the Building Commissioner's supervision, and failure to observe these regulations will also necessitate withholding the deposit until the Building Commissioner is satisfied with the work.
(Ord. 3260. Passed 6-19-39.)