How to arrange for chemical and grey waste disposal

To legally manage waste from chemical toilets (Elsan points) and grey water disposal areas, you must enter into a formal agreement with a carrier licensed by the Environment Agency (or the relevant body in Scotland or Wales). This involves signing a Waste Transfer Note (WTN), which acts as a legal record proving that your waste is being handled by a professional and disposed of at a safe, authorised facility.

1. Identify your specific waste needs

Before contacting carriers, you need to estimate the volume of waste your business will generate. Chemical toilet waste is particularly sensitive because it often contains biocides and blue/green additives that can damage standard septic systems. Grey water—the runoff from sinks and showers—is usually larger in volume but less concentrated. Understanding your peak-season usage will help you determine how often you need collections.

2. Find a licensed waste carrier

It is your legal responsibility to ensure that the company you hire is registered. You can verify this by checking the official public registers:

• England: Environment Agency Public Register.
• Scotland: SEPA (Scottish Environment Protection Agency).
• Wales: Natural Resources Wales (NRW).

Ask potential carriers specifically if they are licensed to handle hazardous or special waste if your chemical toilets use non-biodegradable additives, as this requires higher levels of certification.

3. Obtain quotes and service agreements

Contact at least three licensed carriers to compare prices. When reviewing a contract, check for the following:

• Collection frequency: Can they accommodate weekly collections during your busy summer months?
• Emergency call-outs: What happens if a tank overflows or a pump fails?
• Access requirements: Ensure their tankers can physically reach your disposal points without damaging your tracks or land.

4. Complete the Duty of Care paperwork

Every time waste leaves your site, a Waste Transfer Note must be signed by both you and the carrier. Many companies now offer an Annual Waste Transfer Note (or a 'season ticket') for regular collections of the same type of waste, which significantly reduces your admin. You are legally required to keep copies of these notes for at least two years.

Tip: Never allow an unlicensed individual to take away your waste. If they fly-tip the waste and it is traced back to you, your business—not the carrier—will be held legally liable and could face significant fines.

5. Prepare your disposal points

Make sure your Elsan and grey water points are clearly marked and easily accessible for the tanker driver. Ensure there is adequate lighting and a water supply nearby for rinsing, as this helps keep the area hygienic and reduces the risk of blockages that could complicate the collection process.