Assess the configuration of metered areas

Overview

This Standard is about assessing the configuration of metered areas. This includes checking that information and plans about metered areas are in agreement with what is actually found in the distribution network and that valves and meters are where they are expected to be, that DMA boundary valves are accessible and are not passing water, identifying and reporting problems with valves and meters and establishing inflow and outflow meters, recording any changes that have been made and making sure that DMA permanent boundary valves are marked correctly on site and network plans.  Safety and hygiene procedures should be followed at all times.

This Standard is for anyone who assesses the configuration of metered areas.

Performance Critieria

You must be able to:

  1. follow safe working and hygiene processes in accordance with approved procedures and practices at all times
  2. use relevant information from reliable sources about metered areas
  3. confirm location of specified fittings complies with information provided
  4. check that boundary valves and zonal valves are as specified, accessible and not passing water
  5. correlate onsite data at District Metering Areas and expected nightlines, taking into account seasonal variations and events
  6. report to relevant people any network fittings or equipment that requires repair or maintenance in accordance with organisational procedures
  7. identify possible reasons and follow an appropriate course of action in line with organisational procedures when valves are not in the expected state
  8. record accurate, relevant and complete information about actual configuration in accordance with approved procedures and practices

Knowledge & Understanding

You need to know and understand:

  1. safety and hygiene processes and related regulatory and statutory requirements
  2. sources of information about metered areas
  3. how to interpret network plans
  4. the importance of checking accessibility and working conditions of boundary valves and zonal valves
  5. how to correlate onsite data at District Metering Areas and expected nightlines
  6. the implications of seasonal variations and events
  7. who to report repair and maintenance details to
  8. procedures for water tightness of boundary valves
  9. reasons why valves may not be in the expected status, and the implications of changing them
  10. the consequences of making any changes or variations to water quality and supply, with regard to organisational limits
  11. the importance of not affecting system pressures
  12. organisational recording requirements
  13. the importance of checking site and network plans