The manufacturer's product instructions and safety advice are followed. Make up only the quantity required. Care is taken when transporting, decanting and diluting disinfectants. If possible establish suitable dilution and mixing facilities at a central location, which is closely supervised. Choose sites well away from ditches and drains, and where there is no likely threat to water from spillage or run-off.
Site footbaths away from drains.
Bunding around or blocking-off surface water drains will also help to prevent entry of disinfectants. When constructing 'pads' for disinfecting vehicles, lay plastic sheeting on the ground with a shallow earth wall under each edge, so that the pad can be driven over but still retains the disinfectant. Straw can then be added to reduce splashing. If it is necessary to disinfect a hard surface such a yard or roadway, effort should be made to avoid contamination of drains and ditches, which may lead to pollution of waterways in the vicinity. In difficult locations, consider whether any overflow can be diverted to a suitable grassy area.