Elements and Performance Criteria
- Establish site for water reticulation system's maintenance or construction
- Work is planned and programmed to be undertaken in accordance with drawings, specifications and other documentation.
- Work site is prepared and maintained in safe condition and in accordance with the occupational health and safety (OHS) requirements and regulations of other relevant authorities.
- Work is assigned to appropriate accredited personnel or gangs to meet reticulated water service's job requirements.
- Traffic control is planned at the work site and is signed in accordance with the regulations of various authorities and the Australian standards Manual of Traffic Control Devices.
- Underground and overhead obstructions, hazards and other utility services are located.
- Carry out reticulated water service maintenance
- Condition of the water-reticulated system is monitored, tested, sampled and reported on.
- Water quality problems identified by tests are responded to.
- Correct water reticulated service is located and identified.
- Defective components or pipeline are repaired, replaced or serviced as required.
- Functional pressure/non-pressure tests of items are carried out.
- Water reticulation pipes and equipment are cleaned and disinfected with all wastewater being disposed of appropriately.
- Service is reinstated after maintenance work has been passed at final inspection.
- Excavate trenches
- Appropriate drainage is provided for the diversion of all uncontaminated water from the site and silt traps are set up as required to prevent damage to the environment.
- Environmental protection devices are installed as required to meet environmental regulations.
- Levels and lines of works are set out according to the drawings.
- Excavation plant is selected according to requirements.
- Trenches are excavated to depth and grade as shown on plans, and shoring or shields are installed or trenches are battered back according to OHS requirements.
- Pressure and other tests are completed as specified.
- Trenches are backfilled with selected materials , compacted in layers and surface is finished according to specifications.
- Carry out construction of water reticulation service
- Trench bottom is prepared and pipe bedding is laid to specifications in accordance with the drawings.
- Pipes are placed and valves, fittings and flow control devices are fitted in accordance with the drawings and specifications.
- Water service is disinfected and functional tests of items are carried out.
- Water system is placed in service and the performance of the water reticulation system is monitored.
- Valve chambers, minor structures and thrust blocks are constructed.
- Complete necessary documentation