WAC Testing: The Key to Cost-Controlled Demolition and Disposal

Why classification comes before excavation

Every waste movement during decommissioning must be underpinned by a defensible classification. Without it, lorries are turned away, storage yards overflow and programmes stall. WAC Testing puts numbers to assumptions: metals, hydrocarbons, sulphates, pH, leachability and more. With representative sampling and accredited lab analysis, you know exactly where each tonne can lawfully go—and what it will cost.

Start with a sampling plan informed by the Phase 1 Desktop Study. Historic operations, tank locations and wash‑down areas guide where you take composite and discrete samples. Keep stockpiles separate pending results to preserve reuse options. When certificates arrive, brief your haulier and disposal facility with a clean paper trail—consignment notes, laboratory reports and method statements aligned.

Turning data into savings

On a warehouse and yard decommission, uncontrolled excavation risked mixing clean and impacted soils. By implementing pre‑excavation WAC sampling, the team kept inert, non‑hazardous and hazardous streams separate. Inert went to low‑cost restoration, a small hazardous fraction went to a specialist facility, and the balance stayed on site in engineered landscaping. The client avoided six figures of unnecessary disposal spend.

Classification isn’t only about soils. Insulation, painted timbers and old plant may trigger hazardous codes; ACMs identified by Asbestos Surveys must travel under strict carriage rules; even rubble can fail inert criteria due to sulphates. A measured approach safeguards cost and compliance in equal measure.

Straightforward, defensible, fast

EnviroSolution provides sampling plans, on‑site technicians and accredited laboratory analysis for rapid WAC Testing. We coordinate with demolition and haulage teams so loads leave site with the right code, the right facility and the right paperwork—first time.