Design Criteria •Water efficient fittings and appliances •On-site water capture and reuse •Water supply flow rates optimised to balance required performance and conservation •Local retention of stormwater runoff, stormwater treatment train with consideration of raingardens, roofgardens and swales •Wastewater minimised and/or reused; information on water use readily available •In-house water supply flow rate optimised •Plumbing system designed for water and energy efficiency •Site design recognition of local soil and climate conditions and low water use garden design applied.

1. Water Conservation SHaC Video-conference 14 May 2008

4. Hydrologic Cycle

11. life supporting resources declining consumption of life supporting resources rising

13. “ We can’t solve problems by using the same kind of thinking we used when we created them” Albert Einstein.

14. From this….

15. To this…

16. We could be going from: This….. To this

17. Water Use Efficiency

18. Typical breakdown of domestic water use

19. Comparison of daily per capita water uses * =metered with volumetric pricing Council Daily Per Capita Water Use Figure Nelson 160* Waitakere 167* Rodney 179* Metrowater (Auckland City) 184* Manukau 189* Papakura 190* Kawerau 214 Upper Hutt 227 Tauranga 265* Christchurch 333 South Taranaki 450 Kaikoura 648 Kapiti 650 Queenstown Lakes District 750

21. Products Costs $s Costs with installation Water savings % of total use Accumulative water savings % of total use Gismo 2 5-10 5 Tap Aerators 10 5-10 10 Outdoor hose washers 2 2-5 12-15 Low flow shower head 75 150 10-15 22-30 Dual Flush Toilets (<5l) 225 300 10-15 27-40 4 star rated washing machine 1200 10 37-50 Rain barrel 400 litres or 300 10-15 47-60 Rain tank 4500 litres or 4000 4500 40-60 75 plus Wastewater recovery system 3000 4000 20-40 60 plus

22. Relative increasing cost and difficulty Schematic of DM options against cost and difficulty of implementation for the domestic user

24. Landcare’s water management Rainwater from all roofs is collected in this 25,000 litre tank. It is used for toilet flushing on ground floor, for urinals and for irrigation of glasshouses.

28. Modeled water reduction for Kapiti

29. Composting Toilets · ·

30. Wastewater Management

35. Stormwater Managament

39. Water Quality Friendly Streets Source: City of Portland Water Quality Friendly Streets Program. http://www.portlandonline.com/bes/index.cfm?c=32066

45. The Kapiti Coast District Council experience in changing the rules of the game for subdivision & development Out with the old and in with the new

49. Example of 500m 2 lots SMA 2 54% 61% 61% 48% 61% 53% 55%

52. Water Quality Friendly Streets Curb Cut w/Pad

61. Definitions Residential Built Environment “ The residential built environment consists of the buildings and supporting infrastructure that together constitute the surroundings in which people dwell. It includes, therefore, not only people’s dwellings but other neighbourhood buildings. It also includes the arrangement of infrastructure that service dwellings and the neighbourhoods in which those dwellings are situated.” Sustainability and Affordability “ In achieving sustainability of residential built environments the focus is on the sustainability of individual dwellings but also the neighbourhoods in which they are situated. The goal is to make improving the sustainability of dwellings and neighbourhoods both affordable and cost-competitive.”

62. Systems Industry, Infrastructure, Government, Consumers Pull based on market and needs Energy Water IEQ Pull based on prioritised systems and HSS Market Transformation – pan communication and alignment Policy and Regulation – pan regulatory involvement Beacon’s Operating Model Neighbourhoods New Homes Retrofit Homes