Masonry blocks at Ochrefield Tower (synthetic)
One source’s word (V0)Can be filedProxy
Geography: AE-DUProxy · Regional evidence is limited; band widened No factor exists for this region, so a wider region’s factor stands in. The band is widened and the tier capped.Geography fallback · depth 1
P5 · 2.00P95 · 5.20
3.20 tCO2ebetween 2.00 and 5.20 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.One source’s word (V0)A tier says how the evidence behind a figure was obtained. It is evidence quality, not assurance.
Why this tier
One source’s word (V0): regional proxy limits evidence quality.
Capped because a regional proxy factor is used. Regional evidence is limited; band widened
How to move this up
Add a second, independent record of the same quantity.
Who to check it with
O. Haddad (synthetic), site engineer at Ochrefield Tower.
What could we add
A supplier statement or a meter reading for the same weeks.
Chain of evidence
The tier describes only the quantity.
Quantity
- 1,320 nr from the records listed below
Factor
- FACTOR-03: 2.424 kgCO2e per nr, geography AE-DU, PROXY with its band widened
Where it comes from
- Ochrefield Tower team (synthetic) · primary recordDocument · 2026-Q2 · Kept as received1,320 nr, GSD 1.10 · One source’s word (V0)
- Instrument slot: empty
- Practitioner slot: empty. No assurance engagement is recorded for this period.
What was added
- Delivery notes, 22Sandmarten Block Co (synthetic)Rail R1, Documents
- Pallet estimates, CAM-YARD-01YoursRail 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.
What is missing to clear V3
- Held: an instrument reading, CAM-YARD-01 pallet estimate
- Not held: a second party who independently agrees, A signed delivery docket at the bay
The cheapest second party: Sandmarten Block Co (synthetic), who already produce a docket. With both, this figure could clear V3.
Band over time
Not known, because this figure has only one computed band this period.
For auditors
- kgCO2e
- 3,200 (P5 2,000, P95 5,200)
- GSDs
- Document 1.1 · factor 0.3
- Factor
- FACTOR-03, geography AE-DU
- Verdict
- concordant
- z
- Not computed, because there is one record
- Criteria
- CS-GROUP-2026.v1, PROPOSED, not ratified