Two individuals have been detained as part of an probe into the dumping of many thousands of tonnes of waste in a open field in the county of Oxfordshire.
Officials indicated that a 69-year-old was detained at a dwelling in Hampshire's Andover, while a 54-year-old was detained in Slough in association with the massive mound of waste tipped near Kidlington.
These arrests follow a prior report which revealed the presence of more than 500 illegal tips throughout the country of England, featuring at least 11 so-called "large-scale sites" larger than 20,000 tonnes.
A official for the regulatory agency said that the detentions were for ecological and financial violations and represented a "key step" in continuing probes. The apprehended men have been set free on bail.
The dump in the Kidlington area, located between the Cherwell River and the A34, is thought to contain approximately 21,000 tons of waste in a mound which is up to 150m (490ft) lengthwise and 6m (20ft) high.
This heap of rubbish is composed of what appears to be processed domestic refuse, fragmented plastic items, Styrofoam, automobile tires and various everyday articles.
It constitutes just one of 517 unauthorized tips throughout England, at minimum 11 of which hold in excess of 20,000 metric tons of rubbish. These include a 280,000-tonne site in the county of Cheshire, two 50,000-tonne sites in Lancashire and Cornwall and a 36,000-tonne tip in the county of Kent.
The overall figure of such larger dumps is expected to be greater, as the environment authority has previously indicated it does not maintain records on weight for all unauthorized dump.
Most sites are in countryside areas, often hidden, and on land that is intended to be arable property.
Law enforcement report many are managed by organised crime gangs, who are generating profit by demanding much less than lawful firms to accept and dispose of garbage.
Businesses have to incur site fees to use legitimate landfill sites, based on the volume and type of waste they are trying to get rid of, and a disposal levy is also applied at just over £126 per metric ton.
Preparation efforts to remove the affected location commenced in recent weeks amid fears over the potential of fire and the effect that would have on the close-by major road.
A contracted waste removal contractor has been granted the contract to deal with the site over the next 12 months at a expense of £9.6m.
An investigations official for the government environment unit stated that the authority would be seeking to recoup the clean-up costs under asset recovery acts from anyone successfully found guilty at the conclusion of its ongoing inquiry.
She further stated that the recent detentions would help "move the investigation forward" and allow officials to "investigate more lines of inquiry to ascertain precisely what transpired and who was implicated".
"This unauthorized dump at this location was an atrocious and calculated assault on our environment and we share the community's anger at this egregious act," she stated.
A government minister supported the detentions, stating: "This unlawful dumping of rubbish at the site is disgraceful and has caused considerable damage to the ecology and distress to the local community.
"The government is committed to eliminating this type of criminality in the UK, by boosting resources to address environmental crime, hiring more staff and enacting tougher checks and sanctions for those who break the law."
The detentions were made on a recent Thursday by personnel from a specialist crime squad and are in addition to an prior arrest of a man in his thirties from the Guildford area region in November. He was set free subject to additional enquiries.
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