Failure Mode and Contingency Responses

Key Topic Areas

The course will cover failure modes and contingency responses for:

• Failure of Tunnel Penstock(s);
• System Communication Failures;
• Failure of key measurement instrumentation (e.g. Tideway connection shaft, Abbey Mills Shaft G, Chamber Wharf);
• Failure of River Penstocks (e.g. Abbey Mills/Greenwich PS);
• Downstream SPS unavailable or limited output;
• Tideway PS unavailable or limited output to CSO;
• Tideway PS unavailable or limited output to STW;
• Backflow Penstock Operation unavailable;
• Ingress into the tunnel;
• River flap valve failure;
• Planned or unplanned network restriction;
• Tideway LTT SCADA failure;
• TWUL LTT SCADA failure;
• Beckton STW unavailable to receive flows.

On completion of the training, Delegates are expected to:

• Understand potential failures and how they may impact the LTT operation;
• Be aware of the contingency responses available;
• Understand which contingency responses are applicable during different failure modes;
• Be able to respond and implement contingencies.

Before attending the training session, Delegates are expected to complete:

• LTT System Overview;
• LTT Systems Operations Training.

Before attending the training, Delegates are also expected to have:

• Wastewater Network and Pumping Stations knowledge.