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Wellington Low Level Water Network Model Build, Calibration and Zone Management Plan


Tender Closed
RFx ID : 18994113
Tender Name : Wellington Low Level Water Network Model Build, Calibration and Zone Management Plan
Reference # :
Open Date : Wednesday, 6 September 2017 9:00 AM (Pacific/Auckland UTC+12:00)
Close Date : Tuesday, 26 September 2017 12:00 PM (Pacific/Auckland UTC+13:00)
Tender Type : Request for Proposals (RFP)
Tender Coverage : Sole Agency  [?]
Categories :
  • 30000000 - Structures and Building and Construction and Manufacturing Components and Supplies
  • 81000000 - Engineering and Research and Technology Based Services
  • 83000000 - Public Utilities and Public Sector Related Services
  • Wellington
Required Pre-qualifications : None
Contact : Iman Aghamohammadi
021 306 810
Alternate Physical Delivery Address  : Level 4, IBM Building, 25 Victoria Street, Petone, Lower Hutt
Alternate Physical Fax Number  :

This is a tender for model build, calibration and development of a planning water supply hydraulic model for Low level Zone in Wellington City which includes future horizons of 10, 30 and 50 years.

The water supply network in this area currently serves more than 62,000 residents and is expected to have the population of above 86,000 people in the next 25 years. The water supply system consists of around 260Km of distribution mains with different diameters and some pumping stations that supply secondary reservoirs and high areas.

The main objectives of water supply network modelling on this project are to:
• Compile network hydraulic data and build the model from GIS data.
• Assess and improve the understanding of the system through calibration.
• Assess current and future system performance under normal conditions and what-if scenarios. This includes studies to identify:
- Areas where Levels of Service (pressure, fire flow and storage) are not met.
- Critical fire hydrants for further fire flow testing.
- Criticality analysis for security of supply
• Identify and optimise network improvements or solutions to performance issues. This is part of Wellington Water’s strategic planning and includes studies on:
- Short and long term upgrades planning.
- Investigate and compare the effectiveness of inter zone water transfers.
- Effectiveness of emergency supply.
-Feasibility of alternative DMA configurations.
-Optimisation of reservoir replenishment.

Important dates:
 Proposals submission deadline is Tuesday 26 September 2017 at 12:00pm NZST
 It is a mandatory requirement to be able to complete the project before 1 May 2019.