Section 12.08.060 Digging of surface and base materials.

Surface and subbase materials, other than those specified in Section 12.08.050 shall be removed by hand or machine in such a manner as to disturb or displace the least possible surface area in excess of that which must be removed for the item to be installed. The sides of the trenches four or more vertical feet in depth shall be sloped to an angle equal to or greater than the angle of repose of the material being excavated. No undercutting of subgrade shall be permitted. If undercutting occurs, that section where undercutting took place shall be excavated and repaired in conformity with Section 12.08.050. (Ord. 155 (part), 1999: prior code § 12.03.060)