EA minded to permit waste water re-injection at Surrey oil site

DRILL OR DROP?

The Environment Agency is seeking public comments on its proposal to allow Angus Energy to dispose of waste water underground at the Brockham oil site in Surrey.

Angus Energy site at Brockham, Surrey, on 16 December 2018. Photo: Brockham Protectors

Despite local concerns, the EA said it was minded to permit water re-injection at Brockham.

In a draft decision document, the EA said it was satisfied that risks had been identified and that operating procedures were “sufficient to mitigate the risk to groundwater”. There was no need for groundwater monitoring, it said.

A public consultation opens on Wednesday 29 December 2021 and runs until Monday 31 January 2021. Comments can be made online or by email

Details

Waste water, also known as produced or formation water, often comes to the surface during oil and gas extraction.

It is usually very salty and may be radioactive. Companies seek to re-inject it back underground to avoid expensive water treatment and to support the pressure in the hydrocarbon reservoir, improving hydrocarbon flows.

Angus Energy has previously said it would give up the Brockham site if it could not re-inject waste water.

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