1. Project Overview Waste Pathways: Outlook 2007 Justin Lang, City of Burnside

2. Overview Trial preparation – lead times Background info on GO presentation Scope of organics audits Participation & barriers to uptake Resident survey Composting sessions Recommendations

3. Implementation Large trial area Representative housing, demographics, etc Limited contact with residents Professional information for community

4. Trial brochure Key messages: –Fortnightly service –Place material in GO Bin –Clean & simple to use –Current service has achieved 56% diversion –50% of residual stream is organic (2004 CoB audit) –Bio baskets will help divert up to 75% of residential waste stream –As easy as one, two, three…

6. Audit methodology Adapted from Kerbside Performance reporting: Assess participation and resident behaviour (contamination, no. of bags); Monitor presentation rates, tonnages, yields per household; Assess WHERE organics are going (both waste and GO streams).

8. Results Participation Contamination Diversion (and potential diversion) Weight per bag Bag consumption Yields per household (kilograms)

9. 2004 Kerbside Audit (W&R) Composition of material – as presented (n=76) 62% capacity 2 nd bins 62% 69% capacity recyclables waste Compostables (kg) Not assessed Contents not assessed. Not assessed 58% capacity recyclables waste 66% capacity Compostables 53.9% Other material 23.0% Recyclables 17.9% Misc plastics 5.2% Recyclables 96.6% 05/06 Bio Basket Organics Audit (W&GO) Composition of material – as presented (n=245, GO n=192, waste n=241) Compostable green organic material (kg) Food waste & compostable material (kg) contamination (kg) 66% capacity, 2 nd bins 65%

10. Typical participants 5.00 kg food waste / fortnight ~17.00 kg green organics per fortnight Negligible food in residual Rec. W 56% capacity Contents not assessed. 59% capacity Bio bags presented in GO bin Food in residual Rec. W 56% capacity Contents not assessed. “Non participants” Substantial food in residual Rec. W W

11. Participation 245* premises incl. in organics audits 192/245 premises (78%) presented GO bins 132/192 presented food waste in GO Bins (69% of GO Bins presented). Based upon kerbside audits, this represents a participation rate of 54% (132/245). Home composters (~9-18) 3.2 bags per wk/hh

12. Results - diversion 36.3% diversion of the residual organic waste 8.6% diversion of the total waste stream green organics 64.6% diverted 15.4% organic 20% residual recyclables food (8.6%)

13. Food waste per household

14. % diversion of organics per household (No GO presented)

15. % diversion food waste per household

19. Results - contamination Green organics stream –2.79% contamination of green organics bins (by weight) –23% incident rate of contamination –Typically garden pots etc Negligible contamination within cornstarch bags

23. Results – telephone survey 98% trial community awareness 84% had used the system 77% continued to use the system (93% were happy to continue) 81% of current users and 48% former users – “very easy” to use No issues with odour Willingness $, 5+ bags, other disposal methods

25. Composting / sessions Telephone survey 38% (34) composting 13 resident info sessions (3 hr sessions) - free Gedye bin Part of exit strategy (in conjunction with continued use). Cornstarch bags available from Council office.

26. Kerbside collection Performance of trucks (monthly audits) Weight per load & daily tonnages Determine average yield / household Contamination –CCTV –2 strikes policy –Removal of service

29. Barriers to uptake Basic GO service (since 1997) monthly (optional user-pays service) 39% dwelling units / flats GO Bin ownership relatively low (~65%) Split bin service collected weekly (by necessity) compared with opportunity for Councils with 3 bin systems to reduce effective volume of residual waste containers (fortnightly collections)

30. Recommendations Reduce residual waste collection frequency (reduced cost of collection offsets bio basket cost & ongoing bag costs) This also has the potential to: - increase diversion ratio (for each h/hold) and - increase participation (get more onboard) LG report available.