General Order 128

Section III

Requirements for Supply Systems

31.6    Sealing Service Laterals

Service conduits, by which water may enter buildings, shall be suitably plugged or sealed at the source of supply such as utilities’ transformer or secondary handhole, and at the supply end of the conduit that enters the bottom of customer’s terminating enclosure.

Note:    Customer/contractor may be required by the utility to provide a means to prevent the accumulation of excess water or water pressure in the service lateral conduit.