All excavations required for the installation of building water or sewer facilities shall be open trench work unless otherwise approved by the manager. Pipe laying and backfill shall be performed in accordance with the following specifications:
Pipe shall be carefully bedded, either by forming the trench bottom to support the bottom one-quar-ter of the pipe or by overexcavating and bedding with granular material, thoroughly tamped or trod under and alongside the pipe.
No large rocks shall be left in the trench bottom which may damage the pipe and no large rocks shall be placed in the backfill.
Pipes shall be laid with spigot ends downstream and all changes of direction shall be made by suitable fittings. Trenches shall be free of water during the laying of pipe.
No backfill shall be placed over the pipe until the work has been inspected and approved by the Utility.
Backfill shall be placed by hand and be thoroughly tamped or trod to six inches above the top of the pipe, until installation has been approved by the Utility.
Only the owner or a licensed side sewer contractor may excavate in the vicinity of a public sewer or stubs.
No downspouts, outside drains, floor drains and footing drains shall be connected to a building sewer.
Special bedding and construction methods shall be required where deemed necessary by the manager to protect public or private property.
(Ord. 76 § 12.13, 12-6-2004 (Res. 2004-467))