Water and sewerage capital contributions supplement

All new building developments place an increased load on existing water and sewerage systems and developers are required to contribute towards the costs of extending and upgrading water and sewerage networks.

The Water and Sewerage System Extension Policy (WASSEP) is currently one of the documents held within the Connection Code.

Power and Water is proposing to replace WASSEP with a new document named the Water and Sewerage Capital Contributions Supplement (WSCCS).

The new supplement will address inequities in WASSEP, particularly for re-developments, and provide greater certainty about costs for small developments.

The Water Supply and Sewerage Services Act (s 52) requires a licensee to develop a code for connections, upgrade of connections and acceptance of increased loads. The code must be approved by the Minister.

The Power and Water Corporation has developed and obtained approval of its Connection Code that satisfies the Act by establishing the technical, procedural and charging requirements for connection, upgrade of connection or acceptance of increased load to either Power and Water’s water supply networks or Power and Water’s sewerage systems.

WASSEP was established in 1996 and does not adequately address in-fill (previous used site or ‘brownfields’ site) development that is now more common.

The proposed WSCCS is available on the Power and Water website at powerwater.com.au/wsccs

You can send question to ian.jong@powerwater.com.au. We will attempt to answer within two business days.

Alternatively, you can contact Ian Jong on (08) 899 55840.

Email PWC.WSClientServices@powerwater.com.au

Mail Ian Jong Manager Services Development Power and Water Corporation PO Box 37471, Winnellie NT 0821

General Using the feedback mechanism on the Power and Water website at powerwater.com.au/wsccs

Power and Water is aiming to introduce the new WSCCS on 1 January 2019 and transitional arrangements are outlined in the supplement.

It is intended that development applications lodged with Development Advisory Services (DAS) prior to the implementation date will continue under WASSEP.

Charges will not apply to subdivisions currently in construction, provided that total load or demand does not exceed original master-plan projections.

  • WASSEP charges will no longer apply at the building stage.
  • Charging will be based on Equivalent Person¹ (EP) for water and sewerage.
  • Development Credits² will be used to identify if land is adequately serviced.  Where a subdivision has been master-planned, Development Credits will be agreed during the subdivision phase.  For existing land without a master-plan, default credits will apply and in some cases will be zero.
  • Charging will apply to the additional load or demand imposed by the new development in excess of the Development Credit.
  • Where the total load or demand of a building development is less than Development Credit or matches Development Credit, no capital contribution will be required for water or sewerage.
  • Where land has been re-zoned, the existing Development Credits will continue to apply. Where land is subdivided, the existing Development Credits will be shared across the new lots by area.
  • Introduction of new categories for Small Building Development and Darwin CBD Building Development.
  • Power and Water will take responsibility for local network upgrades for Small Building Developments and Darwin CBD Building Developments, however developers will remain responsible for property services between the development and the mains in the street.
  • Uniform rates will apply for Small Building Developments, which should assist pre-feasibility planning. * Uniform rates will apply for Darwin CBD Building Developments.
  • Introduction of a new category for Out-of-Sequence Developments³ and capital contribution requirements will be assessed on a case-by-case basis for these developments.
  • Introduction of a charge for Large Developments (subdivisions and buildings outside the new categories of Small Building Development, Darwin CBD Building Development or Out-of-Sequence Developments). Excluding this new charge, Large Developments will be handled in the same manner as now used with WASSEP and developers will continue to be required to undertake local network upgrades.
  • Introduction of charging for independent units (sewerage only) based on uniform rates.
  • Charges will be escalated annually by the Producer Price Index (PPI) published by the Australian Bureau of Statistics.

¹ Equivalent Person is a measure of the potential for water or sewerage contribution equivalent to that from a single person at their place of residence

² Development Credits relate to the capacity assigned to land that has an authorised connection for water or sewerage (refer Section 5 and Appendix H of WSCCS)

³ Out-of-Sequence Developments include developments greater than 2,500 EP and those not aligned with regional land plans or existing area plans, developments on land zoned CA, MZ, FD, DV, RD or T, plus several other scenarios (refer Section 2.3.4 of WSCCS

2017/18 Nominal Capital Contribution Rates ($/EP) [including GST]

Development TypeWaterSewerageTotal
Small Developments (≤35 EP)NSB$ 1,624$2,422$4,046
Darwin CBD Building DevelopmentsNCBD$1,218$1,817$3,035
Large DevelopmentsNCBD$221$307$528

Common EP Allowances

ZoneDescriptionAllowance (EP)
SDSingle Dwelling residential (including rural)3.5 per dwelling unit
MDMultiple Dwelling residential2.2 per dwelling unit
MRMedium Density residential2.0 per dwelling unit
HRHigh Density residential2.0 per dwelling unit
CVCaravan Park2.0 per site
LILight Industry35 per gross hectare
GIGeneral Industry (low water dependency)60 per gross hectare