J107.4 - Fill material.

Fill material shall not include organic, frozen or other deleterious materials. No rock or similar irreducible material greater than 12 inches (305 mm) in any dimension shall be included in fills.

Exception: The Building Official may permit placement of larger rock when the Geotechnical Engineer properly devises and recommends a method of placement, and continuously inspects the placement and approves the fill stability. The following requirements shall also apply:

1.

Prior to issuance of the grading permit, potential rock disposal areas shall be delineated on the grading plan.

2.

Rock sizes greater than 12 inches (0.3 m) in maximum dimension shall be 10 feet (3.0 m) or more below grade, measured vertically.

3.

Rocks shall be placed so as to assure filling of all voids with well-graded soil.

4.

The reports submitted by the Geotechnical Engineer shall acknowledge the placement of the oversized material and whether the work was performed in accordance with the engineer's recommendations and the approved plans.

5.

The location of oversized rock dispersal areas shall be shown on the as-built plan.

(Ord. 2016-0053 § 111, 2016.)