In what order should the procedures for a new section of water main be performed before putting it into service?

The procedures for putting a new section of water main into service must follow a logical sequence to ensure the water supply is safe and meets regulatory standards. Starting with the pressure test is crucial as it verifies the integrity of the water main, ensuring there are no leaks before it is put into service. Once the pressure testing confirms the system's stability, the next step is flushing, which helps to clear out any debris or residues that may have accumulated during installation.

Following the flushing process, disinfection is performed to ensure that any potential harmful microorganisms are eliminated. This step is vital in maintaining water quality and safety. Finally, collecting a bacteriological sample is conducted to confirm that the water supply is safe for consumption and meets health standards.

This sequence ensures that each procedure effectively prepares the water system for safe operation, maintaining both functionality and public health safety.