The enforcement action took place at 5 separate addresses located in Warwickshire, Derbyshire and Nottinghamshire.
Investigators from the Environment Agency were supported by police officers from Warwickshire, Derbyshire and Nottinghamshire Police forces who made the arrests and enabled evidence gathering as part of the investigation into illegal burying of waste at 6 sites across Warwickshire, Derbyshire and Buckinghamshire.
The investigation will now continue with the evidence seized and is expected to continue for several months.
An Environment Agency spokesperson said:
The Environment Agency takes waste crime extremely seriously and we will persistently pursue those suspected of illegal waste activities.
Illegal waste activity damages the environment and diverts money from legitimate businesses and at the Environment Agency we do everything we can to bring those responsible to account.
Sergeant Andy Scruton from the Nuneaton Safer Neighbourhood Team said:
The illegal disposal of waste is a blight on our communities and we will always work hard with our partners in the Environment Agency to tackle it.