Evidence Pack Guide — Waste Side

A reference for site managers, sustainability leads and assessors: the fields most likely to be flagged, a redacted example Waste Transfer Note, a redacted weighbridge ticket, the traceability chain, and what we produce for a project — and what we do not.

Section 1 — What Auditors Look For On The Waste Side

BREEAM V7/V7.1 Wst 01 (construction waste management) and Wst 02 (recycled and sustainably sourced aggregates) both hinge on evidence quality. Nine times out of ten a submission is queried not because the material was mishandled but because a document is incomplete.

1. Site Waste Management Plan (SWMP) or equivalent

A living document identifying anticipated waste streams, estimated quantities, planned diversion routes and target diversion rate. Dated, versioned and signed by a named person on site.

2. Waste Transfer Notes (WTNs) — complete and consistent

One WTN per movement, with the six-digit EWC code (not a four-digit chapter), the site address that matches the project record, a named destination facility (not "recycler TBC"), the carrier registration number, and matching signatures and dates on both parties.

3. Weighbridge tickets that reconcile with the WTN

Ticket number, gross, tare and net weights, date, time, vehicle registration, and destination facility. Weights on the ticket must reconcile with the WTN tonnage — a discrepancy over 5% is a flag.

4. Destination confirmation and end-fate

Confirmation that the material was received and processed at the named facility. For recycled or recovered fractions, evidence of end-fate (recycled, reused, energy recovery, landfill) is what supports the diversion percentage claim.

5. Named responsible person and a live document register

A single person accountable for the pack, and a register of every document with status (present, missing, expired, superseded). The register is often what an assessor asks for first.

Section 2 — Sample Waste Transfer Note (Fields Called Out)

Illustrative example of a PVC-U collection record. Field callouts point to the entries an assessor is most likely to query.

Five fields most often missed: EWC six-digit (not four), a named destination facility, carrier CBD registration, matching signatures and dates on both parties, and a producer address that matches the project record.

Section 3 — Sample Weighbridge Ticket (Reconciled To The WTN)

The weighbridge ticket is the arithmetic check on the WTN. Assessors look at both together — figures must agree, allowing for small moisture and calibration variation.

Tolerances we apply on our own review

Section 4 — Traceability Chain (Site to Recycler)

The chain is what turns a stack of documents into a defensible diversion claim. Each hand-over records who, what, when, where and how much. A missing link at any stage collapses the claim for that load.

Segregated skip, load photo, site log entry → CBD-registered haulier, vehicle reg logged → ticket issued at receiving facility → contamination check, grade recorded → destination confirmation and end-fate (recycled, reused, energy recovery, landfill), reconciled monthly against the site register.

Evidence recorded at each step

Statutory minimum retention for Waste Transfer Notes in England is two years, and three years for Consignment Notes for hazardous waste. We retain everything for a minimum of three years and, for BREEAM projects, until the end of the defects liability period plus two years, whichever is longer.

Section 5 — What We Produce For A Project, And What We Do Not

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