Calculating the new NIs through WDF User Group

Calculating the new NIs through WDF User Group 5 th March 2008

• CLG technical guidance has been revised following consultation and final waste PIs are now available. http: //www. communities. gov. uk/documents/localgovernme nt/pdf/708685 • The note circulated prior to the UG forms the basis of the methodology presented here. • No question changes envisaged. Some minor guidance change on Qu 18.

NI 193: Percentage of MSW to landfill Calculation - Numerator Total waste directly to landfill, input to Qu 51, 52, 53 Plus Recycling rejects from MRF sent to landfill (output from Qu 58) [for WDAs this includes WCAs] Plus Total tonnage of collected waste for recycling or reuse rejected (rejects in Qu 10, 11, 12, 16, 17, 18, 33, 34 for UAs, WCAs, plus 11 & 14 for WDAs) Plus Recycling and reuse rejects to landfill from Qu 19 & Q 35 [for WDAs this includes WCAs] Where the destination is specified as landfill or left blank Plus Output to landfill after other treatment routes (Q 56, 59, 60, 61, 62, 63, 64, and 65)

NI 193: Percentage of MSW to landfill Calculation - Denominator Total tonnage of waste collected for recycling or reuse from Q 10, 11, 12, 16, 17, 18, 33, 34; all materials. For WDAs include WCA recyclate and Q 11, 14. Plus Collected residual waste, Qu 23.

NI 192: Percentage of household waste reused, recycled or composted Calculation – Numerator (WCA) Total of all materials in Qu 19 sent for recycling excluding rubble Notes Rubble is non-household waste. Plus Total of all materials in Qu 35 sent for reuse excluding rubble Minus Total of all materials except rubble collected for recycling or reuse in Qu 11 Deducts recycling from non-hh sources Minus Total of non-household waste reported in Qu 18, rows Only want to deduct nonfor municipal parks/grounds waste and community skips household waste that is NOT rubble. Will need to change advice to complete Qu 18 and enter any rubble tonnages in the third row ‘other method’.

Minus Recycling rejects: A proportion of the rejects in Qu 19 rejects * [(sum of collected for recycling in Qu 10, 12, 16, attributable to household sources 17, 18 (hh only), 33, 34, for all materials excluding rubble)/(sum of collected for recycling in Qu 10, 11, 12, 16, 17, 18, 33, 34, for all materials excluding rubble)] Minus Re-use rejects: A proportion of the rejects in Qu 35 rejects * [(sum of collected attributable to household sources for reuse in Qu 10, 12, 16, 17, 33, 34, for all materials excluding rubble)/(sum of collected for reuse in Qu 10, 11, 12, 16, 17, 33, 34, for all materials excluding rubble)]

NI 192: Percentage of household waste reused, recycled or composted Calculation – Numerator WDA Notes Total of all materials in Qu 19 sent for recycling Rubble is non-household waste. excluding rubble Plus Total of all materials in Qu 35 sent for reuse excluding rubble Minus Recycling rejects: A proportion of the rejects in Qu 19 rejects * [(sum of attributable to household sources collected for recycling in Qu 14 for all materials excluding rubble)/(sum of collected for recycling in Qu 11, 14, for all materials excluding rubble)]

Minus Re-use rejects: A proportion of the rejects in Qu 35 rejects * [(sum of collected for reuse in Qu 14 for all materials excluding rubble)/(sum of collected for reuse in Qu 11, 14, for all materials excluding rubble)] attributable to household sources Plus Total amount of WCA waste sent for recycling, reuse or composting, as defined above Minus Total of all materials except rubble collected for recycling or reuse in Qu 11 (WCAs and WDA) Minus Total of non-household waste reported in Qu 18, rows for municipal parks/grounds waste and community skips (for WCAs) Plus Deducts recycling from non-hh sources Only want to deduct non-household waste that is NOT rubble. Will need to change advice to complete Qu 18 and enter any rubble tonnages in the third row ‘other method’. Amount of recycling output from residual waste Tonnages diverted for recycling from Q 56, Q 57 (not char/slag), Q 59, Q 60, Q 64 and sorted and treatment attributable to household Q 65 * (total household waste in sources Qu 69/total waste in Qu 69 OR if Q 69=0 then Qu 23 residual household waste/total Qu 23).

NI 192: Percentage of household waste reused, recycled or composted Calculation – denominator UA Notes Total tonnage of household waste collected Rubble is non-household waste. for recycling or reuse from Q 10, Q 12, Material rejected is not deducted as this is Q 16, Q 17, Q 18 (household waste part of the total household waste column), Q 33 and Q 34; all materials arisings. excluding rubble. Plus Collected residual household waste, Qu 23. All collected household waste (regular collection, street cleaning, bulky waste & other), CA site household, gully emptyings and separately collected healthcare waste. It does NOT include CA Site non-hh, Collected non-hh waste (Highways, C&D, Grounds, C&I, Other), beach cleansing, Asbestos, and Other Collected.

191: Residual household waste per household (kg) • Calculated by deduction. Calculation – Numerator WDA, WCA, UA Notes Total household waste as defined under NI 192 denominator Minus Total household waste sent for reuse, recycling or as defined under NI 192 composting numerator • Denominator – No. households. Uploaded into WDF Qu 2, taken from the Valuation Office end year household figures. E. g. for 2008/9 these will relate to end March 2009 and are expected to be released in June 2009.

Next Steps • • Finalise methodology based on feedback. Revise validation reports Produce new PI reports Finalise data transfer arrangements with CLG.