§ 6.05. EXCAVATION AND BACKFILL:

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A. Within public right-of-way, backfill shall consist of Class A crushed stone or suitable job excavated material placed in one foot lifts compacted to 90% Modified Proctor Density. If crushed stone is used, the top 12 inches of backfill shall consist of suitable job excavated materials. Flowable mortar may be used upon approval of mix design by the City Engineer. Sand backfill is not permitted; however, sand may be used as utility bedding.
B. In all other areas backfill shall consist of suitable job excavated material placed in one foot lifts and compacted to 85% Modified Proctor Density.

                    
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