Non-Drinking Water in Western Australia: The Water Corporation Perspective. Neil McGuinness Manager Non Drinking Water, Water Industry Policy Branch

Transcription

1 Non-Drinking Water in Western Australia: The Water Corporation Perspective Neil McGuinness Manager Non Drinking Water, Water Industry Policy Branch November 2011

2 Presentation outline Current situation External Landscape Perth and Mandurah NDW Strategy Dual Reticulation Policy Sewer Mining Policy Water Recycling Policy H2Options update Page 2

3 Our portfolio approach Page 3

4 15% % 9% 6% 3% 0% Percentage Recycling Wastewater Flows (GL/yr) 0 Financial Year Ending Source: Water Corporation, 2011 Page 4

5 Water Corporation recycling around the State Total recycled water supplied in : North West, 16% 19,594 ML South West, 16% Perth, 47% Goldfields- Agricultural, 4% Great Southern, 13% Mid West, 4% Source: Water Efficiency and Recycling Annual Report Page 5

6 External Landscape Draft Approval Framework for the use of Non-Drinking Water in Western Australia (Oct 2010) DoW; Operational Policy 1.01 Managed Aquifer Recharge in Western Australia (Jan 2011) - DoW; Code of Practice for the Reuse of Greywater in Western Australia (2010) DoH; Guidelines for the Non-Potable uses of Recycled Water In Western Australia (Aug 2011) DoH; Draft Alternate Water Supply Guidelines Stormwater and Rainwater (2009) DoH; National Water Quality Management Strategy Phase 1 and 2 Recycled, Stormwater and Managed Aquifer Recharge Modules ( ). Page 6

7 Perth-Mandurah Non Drinking Water Strategy Page 7

8 Why are we preparing a strategy? Wastewater recycled in Perth and Peel Figure 5: Forecasted wastewater recycled in Perth and Peel by Target: 30% wastewater recycled by 2030 Forecast = 49.6GL by 2030 GL/yr : 7.5% wastewater recycled (9.5GL/yr) Note: Includes the forecast reduction in wastewater inflows if water efficiency targets are met Page 8

9 Perth-Mandurah Non-Drinking Water Strategy Supporting Non-Drinking Water Schemes Governance Supply of recycled wastewater Alternative non-drinking water sources End uses Commercial considerations Page 9

10 Dual Reticulation Policy Page 10

11 Dual Reticulation Policy: key principles Allocation of NDW sources Early engagement on proposals Levels of service Design standards Economic and asset lives WC as service provider Pricing and funding Public information Water efficiency Page 11

12 Sewer Mining Policy: key principles Early engagement Allocation of raw wastewater Wastewater quality and quantity management Acceptance of sewer mining residuals Funding Service Provision Water efficiency Page 12

13 Water Recycling Policy: key principles Only Disposal No Disposal Community Benefit No charge for water resource No charge for water resource. MoU required with with end users. end users point is negotiable, and typically located Delivery point is negotiable between disinfection and the point of end use (e.g. Regulatory sprinkler head). approvals (DEC, DoH, DoW) Regulatory approvals (DEC, DoH, DoW) will be will be sought and gained by the Water sought and gained by the Water Corporation if Corp required. if required No charge for water resource Recycled Water Supply Agreement No charge for water resource. RWSA required with end users Delivery point can be negotiable, generally one required of the following: with end users Delivery point generally one of: Last Last disinfection disinfection point point WWTP WWTP Boundary Boundary or or Meter Meter but Regulatory also can approvals be negotiable (DEC, DoH, DoW) will be sought and gained by the third party with Regulatory support from the approvals Water Corporation. (DEC, DoH, DoW) will be sought and gained by Local Govt with support from the Water Corp Commercial Negotiable charge for water resource and joint costs RWSA required with end users Delivery point determined on a case by Negotiable charge for water resource and joint costs. RWSA required with end users. Delivery point determined on a case by case basis. Regulatory case approvals basis (DEC, DoH, DoW) will be sought and gained by the Water Corporation if required. Regulatory approvals (DEC, DoH, DoW) will be sought and gained by the Water Corp if required Negotiable charge for water resource Negotiable charge for water resource and joint costs. and joint costs RWSA required with end users. Delivery point is one of the following: RWSA required with end users Delivery point is: WWTP Boundary WWTP Recycling Boundary Plant boundary or Recycling Plant Meter boundary or Meter Regulatory approvals (DEC, DoH, DoW) will be sought and gained by the third party. Regulatory approvals (DEC, DoH, DoW) will be sought and gained by the third party Page 13

14 H2Options update Water Balance Assessment Water Balance tool (Assumptions for metro will be updated) Potable Water Non Drinking Water (WC involvement) (Water Costing tool is proposed to be removed, however assumptions will be available) Land Developers Local Governments Industrial Users Water Efficiency Simplified step-by-step guidelines NDW policy statements Info Sheets Alternative sources map Relevant documents templates (i.e. application and agreements) Contact details Page 14

15 Key Messages The Water Corporation is keen to provide assistance with Non-Drinking Water (NDW) proposals and enquiries; An integrated approach is supported to provide appropriate sustainable NDW solutions; H2Options will continue to be the main tool available to assist with the early assessment of NDW projects; The Water Corporation is not the only service provider for NDW solutions. Page 15

16 Where to from here? To comment on the H2Options update, please contact us before the end of November; NDW project enquiries can be directed to Chris Higgs and the Recycling Team at au) 2 fact sheets (Dual Reticulation and Sewer Mining) are now available to assist with the provision of information to the public. Page 16

17 Questions? Neil McGuinness Manager Non Drinking Water, Water Industry Policy Branch (08) Page 17