Mixed construction waste at Ochrefield Tower; what is possible (synthetic)
Measured and confirmed (V3)Can be filed
Geography: AE-DU
P5 · 5.90P95 · 13.4
8.90 tCO2ebetween 5.90 and 13.4 about 90% of the time (P5 to P95) The median is the middle estimate. The band runs from P5 to P95: the true value falls inside it about 90% of the time.Measured and confirmed (V3)A tier says how the evidence behind a figure was obtained. It is evidence quality, not assurance.
Why this tier
What is possible: your own weighbridge and transfer notes agree, z 0.415. Joint mass 501.4 t (480.2 to 523.5), GSD 1.0266, V3.
How to move this up
The own weighbridge is already fitted. Ask for the two destination transfer notes.
Who to check it with
Quillmere Recovery Yard (synthetic), for the destination records.
What could we add
The weighbridge is already fitted; a camera counts skip lorry departures, not mass.
Chain of evidence
The factor has its own band. The headline is the supplied engine seed, never recomputed from these illustrative inputs.
Quantity
- 501.4 t (480.2 to 523.5), GSD 1.0266, V3, what is possible
- Own weighbridge and transfer notes agree, z 0.415
- 96 camera departures: a count, not a weight
Factor
- Factor 21.4 kgCO2e per t, GSD 1.28; geography AE-DU
Where it comes from
- Your weighbridge (synthetic) · primary recordWeighbridge readings · 2026-Q2 · Your own weighbridge498.7 t (474.8 to 523.6, P5 to P95), GSD 1.03 · Measured (V2)
- Quillmere Recovery Yard (synthetic)94 transfer notes · 2026-Q2 · Kept as receivedTwo destination transfer notes are not held512.4 t (465.6 to 564.1, P5 to P95), GSD 1.06 · One source’s word (V0)
Set aside
- 96 skip lorry departures on camera: A count, not a weight; not added to the mass.
- Instrument slot: held
- Practitioner slot: empty. No assurance engagement is recorded for this period.
What was added
- 94 transfer notes: 512.4 t, GSD 1.06Quillmere Recovery Yard (synthetic)Rail R1, Documents
- Your own weighbridge: 498.7 t, GSD 1.03YoursRail R3, Sensors
- 96 skip lorry departures; a count, not a weightYoursRail R4, Site vision
What should we add next?
Pick something you could add and whose it would be. The answer is the engine’s.
Nothing is picked yet.
Band over time
Not known, because this figure has only one computed band this period.
For auditors
- kgCO2e
- 8,900 (P5 5,900, P95 13,400)
- GSDs
- Weighbridge readings 1.03 · 94 transfer notes 1.06 · factor 1.28
- Factor
- FACTOR-12, geography AE-DU
- Verdict
- concordant
- z
- 0.415 against 2.58, PROPOSED, owned by the assurance partner
- Criteria
- CS-GROUP-2026.v1, PROPOSED, not ratified