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What should I do with water-contaminated red diesel from a leaking tank?

In brief

With water-contaminated red diesel from a leaking tank, contain the leak if it is safe, keep it out of drains and watercourses, report pollution, and have the remaining fuel pumped out quickly so the tank can be repaired or replaced. Usually yes. Call 07950 582635 or send an enquiry.

What water in red diesel means here

Water is where most diesel problems start. It corrodes tanks and injection equipment, freezes in winter, and gives diesel bug a place to grow at the boundary between fuel and water. The biodiesel in modern diesel holds more dissolved water than pure mineral diesel, so it is more prone to it. Corroded, damaged or old tanks can weep fuel from seams, pipework and fittings, or lose it into the ground.

Storing it until collection

Transfer the fuel into a sound tank or fuel-grade containers in a bund; never leave fuel in a leaking tank. The fuel itself usually keeps its value; contaminated soil and absorbents are a separate waste.

Preventing water in red diesel next time

Keep fill caps, vents and hatches sound, check for water regularly with paste or a sample, drain water off promptly, and keep tanks reasonably full to limit condensation.

How City Fuel Services handles waste red diesel

Every load of waste red diesel is assessed before anything is booked. Tell us the quantity, the containers and any contamination; we confirm the terms, collect with a suitable vehicle, and take it to a permitted facility on a consignment note.

Terms used in this answer

Uplift
The fuel trade's word for a collection: pumping fuel out of a tank or container and taking it away.
Consignment note
The document that travels with hazardous waste from the producer to the receiving site. Each person in the chain completes and signs their part.
Key facts
ProblemWater in Red diesel
SituationFrom a leaking tank
PriorityUrgent: every hour of leaking adds to the clean-up.
FuelRed diesel
Also calledgas oil, rebated diesel, marked gas oil

Related questions

Official guidance: GOV.UK: hazardous waste.

Holding waste fuel? Tell us what you have.

Business and postcode, quantity, fuel and contamination, storage and access, one-off or recurring. We assess it and confirm a rebate or a collection charge before anything is booked.