1. Cross-validation of waste statistics data
Comparison with other reporting obligations
Cross-validation of waste statistics data
THE CONTRACTOR IS ACTING UNDER A FRAMEWORK CONTRACT CONCLUDED WITH THE COMMISSION

2. Overview Introduction Example: Generation of WEEE & ELV Example: PRTR
Example: Generation of C&D-Waste (WFD)

3. Why to carry out cross-validation?
Some other reporting obligations are partly overlapping with the obligations of the WStatR
EU waste data from different sources should ideally be coherent / free of contradictions
Cross-checking  mutual improvement of the data quality
Explanations of inconsistencies (e.g. in the Quality Report) ease the validation, cross-country comparison and interpretation of waste statistics

4. Reporting obligations of special relevance for cross-validation
Waste Electrical and Electronic Equipment (WEEE)
End of life vehicles (ELV)
Waste Shipment
Packaging and packaging waste
Waste Framework Directive - Recycling/recovery targets
PRTR

5. Challenges related to cross-validation
Differences in coverage and definitions
Reporting responsibilities are shared with different administrative bodies
The same reporting deadlines (end of June)  Data for some other reporting obligations is produced simultaneously with waste statistics

6. The approach in Austria
Umweltbundesamt gathers all reports related to waste, including method descriptions
Cooperation / discussions with other administrative bodies responsible for waste reporting
For each waste statistics report, cross-validation is carried out covering all waste related reporting obligations  Results are documented in a special quality report

7. Example: Generation of WEEE & ELV

8. Cross-check with WEEE-reporting: Comparability
The total generation of the category “discarded equipment” (WStatR) can be compared with the collected amounts of WEEE (WEEE-Dir)
Differences in the coverage:
EWC-Stat category 08 Discarded equipment covers all LoW-codes that refer to WEEE with the exception of PCB-containing equipment and equipment containing free asbestos.
In addition to the WEEE-related waste types, the category discarded equipment includes wastes / components from the dismantling of end-of-life vehicles.
WStatR-data may include double-counted amounts due to pre-treatment steps

9. Cross-check with WEEE-reporting: Validation rule
Validation rule: Discarded equipment generated (WStatR) > Discarded equipment collected (WEEE-Dir)
Example: Austrian data
Reference year
Discarded equipment generated (WStatR)
Discarded equipment collected (WEEE-Dir)
2012
82.419
77.402
2014
85.106
77.726

10. Cross-check with WEEE-reporting: WStatR and WEEE-Dir in 2014

11. Cross-check with ELV-data: Comparability
The total generation of the category “discarded vehicles” (WStatR) can be compared with the total weight of end-of life vehicles (ELV- Dir).
Differences in the coverage:
End-of-life vehicles are covered by category EWC-Stat 08.1 Discarded vehicles. Covers end-of-life vehicles as defined by ELV-Directive (passenger cars, small trucks, ..) but also any other vehicles like heavy trucks and off-road machinery
WStatR-data may include double-counted amounts due to pre-treatment steps
Parts of ELV and materials from the treatment of ELV are reported either under the category EWC-Stat 08 Discarded equipment or under the respective materials

12. Cross-check with ELV-data: Validation rule
Validation rule: Discarded vehicles generated (WStatR) > Total weight of end-of-life vehicles (ELV-Dir)
Example: Austrian data

13. Cross-check with ELV-data: WStatR and ELV-Dir in 2014

14. Example: PRTR

15. Reporting on waste to the E-PRTR
Facilities included in Annex I of Regulation 166/2006/EC
65 E-PRTR economic activities
Total quantities of hazardous and non-hazardous waste per year
Off-site transfers of more than 2000 tonnes non hazardous
Off-site transfers of more than 2 tonnes hazardous waste
The amounts are to be related to recovery and disposal
Transboundary shipments of hazardous waste
Off-site of more than 2 tonnes hazardous waste per year
details of the waste receivers have to be provided.

16. Comparability of the E-PRTR data with Waste Statistics
Total quantities of hazardous waste and of non-hazardous waste can be compared on the level of economic categories of Annex I of the WStatR
Because of the reporting thresholds and because E-PRTR does not cover internal treatment, the E-PRTR data does not have full coverage
 the E-PRTR quantities should generally be lower than the quantities reported under WStatR

17. Example: Cross-check in Austria 2014
NACE Rev.2 divisions
WstatR
Hazardous waste (t)
Non- hazardous waste (t)
PRTR
A01, A02, A03
9.460 0 
B04 - B09
17.031
26.202
171
2.333
C10, C11, C12
1.335
188
C13, C14, C15
1.292
27.875
184
16.946
C16
14.185
228
56.215
C17, C18
5.714
2.472
C19
2.613
4.896
2.192
3.996
C20, C21, C22
46.366
87.998
C23
17.624
60.152
2.438
2.336
C24, C25
C26-C30
51.856
7.577
22.018
C31, C32, C33
6.980
77.284
417
157
D34, D35
29.999
17.452
E36, E37, E39
3.181 31
E38
F41, F42, F43
1.928
G - U (ex. G46.77)
124
6.539
G46.77
2.550
594

18. Example: Generation of C&D-Waste (WFD)

19. Compliance Reporting on WFD: Recovery rate of C&D Waste
The recovery rate is defined as follows:
Calculation methods:
Materially recovered amount: Calculation on basis of national data WStatR data do not allow determining the recovery of C&D waste accurately, e.g. due to the impact of imports and export
Generated amount of C&D waste: 1) Use of WStatR data (details are defined in 2011/753/EC) or 2) Use of national data

20. Cross-check of generated quantities of C&D-waste 2012
Source: Eurostat 2016, Doc. WASTE WG 4.5(2016), Item 4.5 on the agenda,
Working Group on waste statistics 1 and 2 March 2016

21. Some results of the cross-validation
Significant differences (> 20%) between WFD and WStatR data on generated quantities occurred in 12 of the 25 reporting countries
Reasons include:
Different data sources
Data compilation by LoW-codes, in combination with excessive use of codes for metal wastes
Incorrect data coverage
Submission of provisional data
Different reference years
Source: Eurostat 2016, Doc. WASTE WG 4.5(2016), Item 4.5 on the agenda,
Working Group on waste statistics 1 and 2 March 2016

22. Contact & Information Milla Neubauer milla.neubauer@umweltbundesamt.at
Umweltbundesamt
ESTP course on waste statistics
Wien ■