Fine material, free from lumps and stone, selected from the spoil, shall be thoroughly compacted to not less than ninety five percent (95%) of the standard Proctor Test around and under the substructure to the upper level of the substructure. Above the upper level of the substructure, backfill material shall be placed to the subgrade of the pavement in lifts of a depth based upon the type of soil involved and the degree of consolidation specified. Broken pavement, large stones, roots, and other debris shall not be used in the backfill. The number and size of each lift shall be dependent upon the type of soil involved. Such backfill shall be done in a manner so as to meet the ninety five percent (95%) standard Proctor Compaction Test specified above. The Director may require soil tests to be furnished by a recognized soil testing laboratory or registered professional engineer specializing in soil mechanics when, in the Director's opinion, backfill for any excavation is not being adequately compacted or when deemed necessary. In order for the resurfacing to be permitted, such tests must show that the backfill material meets the requirements as prescribed by the currently adopted edition of the State of Utah Standard Specifications for Road and Bridge Construction and APWA. All expense of such tests shall be borne by the permittee. (Ord. 2019-09, 5-9-2019)